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freebsd-dev/sys/dev/ath/if_ath.c

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Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
/*-
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
* Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
* redistribution must be conditioned upon including a substantially
* similar Disclaimer requirement for further binary redistribution.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGES.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*
* Driver for the Atheros Wireless LAN controller.
acknowledge the contribution of Atsushi Onoe
2003-06-30 04:51:11 +00:00
*
* This software is derived from work of Atsushi Onoe; his contribution
* is greatly appreciated.
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
*/
#include "opt_inet.h"
o add opt_ath.h enable tweaking various config parameters for the driver without modifying the source code o default debug msgs and diag support to off MFC after: 3 days
2006-04-03 18:14:02 +00:00
#include "opt_ath.h"
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/sysctl.h>
#include <sys/mbuf.h>
#include <sys/malloc.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/errno.h>
#include <sys/callout.h>
#include <sys/bus.h>
#include <sys/endian.h>
use a private task queue thread MFC after: 2 weeks
2006-02-09 21:48:51 +00:00
#include <sys/kthread.h>
#include <sys/taskqueue.h>
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
#include <machine/bus.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_media.h>
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
#include <net/if_types.h>
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
#include <net/if_arp.h>
#include <net/ethernet.h>
#include <net/if_llc.h>
#include <net80211/ieee80211_var.h>
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
#ifdef ATH_SUPPORT_TDMA
#include <net80211/ieee80211_tdma.h>
#endif
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
#include <net/bpf.h>
#ifdef INET
#include <netinet/in.h>
#include <netinet/if_ether.h>
#endif
#include <dev/ath/if_athvar.h>
Switch to ath hal source code. Note this removes the ath_hal module; the ath module now brings in the hal support. Kernel config files are almost backwards compatible; supplying device ath_hal gives you the same chip support that the binary hal did but you must also include options AH_SUPPORT_AR5416 to enable the extended format descriptors used by 11n parts. It is now possible to control the chip support included in a build by specifying exactly which chips are to be supported in the config file; consult ath_hal(4) for information.
2008-12-01 16:53:01 +00:00
#include <dev/ath/ath_hal/ah_devid.h> /* XXX for softled */
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
add tx99 hooks MFC after: 2 weeks
2006-02-09 21:28:11 +00:00
#ifdef ATH_TX99_DIAG
#include <dev/ath/ath_tx99/ath_tx99.h>
#endif
o unbreak handling of TKIP tx-only keys for splitmic chips o yank compat support for hal's older than 0.9.20.3; leave a CTASSERT in place just in case
2008-05-03 21:55:02 +00:00
/*
* We require a HAL w/ the changes for split tx/rx MIC.
*/
CTASSERT(HAL_ABI_VERSION > 0x06052200);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
/*
* ATH_BCBUF determines the number of vap's that can transmit
* beacons and also (currently) the number of vap's that can
* have unique mac addresses/bssid. When staggering beacons
* 4 is probably a good max as otherwise the beacons become
* very closely spaced and there is limited time for cab q traffic
* to go out. You can burst beacons instead but that is not good
* for stations in power save and at some point you really want
* another radio (and channel).
*
* The limit on the number of mac addresses is tied to our use of
* the U/L bit and tracking addresses in a byte; it would be
* worthwhile to allow more for applications like proxy sta.
*/
CTASSERT(ATH_BCBUF <= 8);
Misc keycache changes: o purge ath_initkeytable; it's not needed o add multicast key search support for supporting multiple group keys (disabled for now; requires updated hal) o create keycache entry for stations using open auth so they get h/w antenna management support o add keycache -> node mapping table; eliminates mac-based lookup in the net80211 layer
2005-06-06 16:39:21 +00:00
/* unaligned little endian access */
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
#define LE_READ_2(p) \
((u_int16_t) \
((((u_int8_t *)(p))[0] ) | (((u_int8_t *)(p))[1] << 8)))
#define LE_READ_4(p) \
((u_int32_t) \
((((u_int8_t *)(p))[0] ) | (((u_int8_t *)(p))[1] << 8) | \
(((u_int8_t *)(p))[2] << 16) | (((u_int8_t *)(p))[3] << 24)))
add hack to deal with Ubiquiti XR9 cards, they have a different mapping between 900MHz and 2.4GHz frequencies than SR9 cards; they are distinguished by different country codes
2008-10-27 18:00:43 +00:00
#define CTRY_XR9 5001 /* Ubiquiti XR9 */
add frequency mapping for the Zcomax GZ-901
2008-11-30 18:27:10 +00:00
#define CTRY_GZ901 5002 /* ZComax GZ-901 */
add hack to deal with Ubiquiti XR9 cards, they have a different mapping between 900MHz and 2.4GHz frequencies than SR9 cards; they are distinguished by different country codes
2008-10-27 18:00:43 +00:00
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
static struct ieee80211vap *ath_vap_create(struct ieee80211com *,
const char name[IFNAMSIZ], int unit, int opmode,
int flags, const uint8_t bssid[IEEE80211_ADDR_LEN],
const uint8_t mac[IEEE80211_ADDR_LEN]);
static void ath_vap_delete(struct ieee80211vap *);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
static void ath_init(void *);
Update with last year of work.
2004-12-08 17:34:36 +00:00
static void ath_stop_locked(struct ifnet *);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
static void ath_stop(struct ifnet *);
static void ath_start(struct ifnet *);
Update with last year of work.
2004-12-08 17:34:36 +00:00
static int ath_reset(struct ifnet *);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
static int ath_reset_vap(struct ieee80211vap *, u_long);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
static int ath_media_change(struct ifnet *);
static void ath_watchdog(struct ifnet *);
static int ath_ioctl(struct ifnet *, u_long, caddr_t);
static void ath_fatal_proc(void *, int);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
static void ath_bmiss_vap(struct ieee80211vap *);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
static void ath_bmiss_proc(void *, int);
Cleanup power handling and fix suspend/resume: o do not put the chip into full sleep in ath_stop as it gains nothing and causes many parts to hang in ath_detach because we may touch the chip during vap teardown; this may also fix issues with unloading the module o add a note in ath_detach to explain ath_hal_detach puts the chip in low power mode; this is useful to know as it means unloading the module will place a pci device in the lowest possible power state o leave an #ifdef notyet marker for powering down the chip when a device is marked down; we can't do that until we handle all the ways the driver may be entered and touch the chip o fix resume by reloading the h/w key cache as it's been clobbered (for pci) by the socket being powered off; for station mode we directly stop+init the chip and then simulate a beacon miss to get the upper layers sync'd up; for other configs we must brute force stop+start the vaps so they go through the state machine
2008-05-29 00:10:48 +00:00
static int ath_keyset(struct ath_softc *, const struct ieee80211_key *,
struct ieee80211_node *);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
static int ath_key_alloc(struct ieee80211vap *,
Crypto api changes: o don't use the key index to identify when the driver has been asked to allocate a key slot, use an explicit flag; allows drivers to force s/w fallback for entries in the global table o change callback api to allocate driver resources for a crypto key: - de-const the key parameter so drivers can muck with the flags - on callback failure don't automatically try to setup s/w crypto; instead the driver must now mark the key entry for s/w crypto and the caller will re-attach the cipher module NB: api change permits drivers more control over fallback to s/w crypto (e.g. based on a limited number of h/w key slots)
2008-09-21 23:16:19 +00:00
struct ieee80211_key *,
Split crypto tx+rx key indices and add a key index -> node mapping table: Crypto changes: o change driver/net80211 key_alloc api to return tx+rx key indices; a driver can leave the rx key index set to IEEE80211_KEYIX_NONE or set it to be the same as the tx key index (the former disables use of the key index in building the keyix->node mapping table and is the default setup for naive drivers by null_key_alloc) o add cs_max_keyid to crypto state to specify the max h/w key index a driver will return; this is used to allocate the key index mapping table and to bounds check table loookups o while here introduce ieee80211_keyix (finally) for the type of a h/w key index o change crypto notifiers for rx failures to pass the rx key index up as appropriate (michael failure, replay, etc.) Node table changes: o optionally allocate a h/w key index to node mapping table for the station table using the max key index setting supplied by drivers (note the scan table does not get a map) o defer node table allocation to lateattach so the driver has a chance to set the max key id to size the key index map o while here also defer the aid bitmap allocation o add new ieee80211_find_rxnode_withkey api to find a sta/node entry on frame receive with an optional h/w key index to use in checking mapping table; also updates the map if it does a hash lookup and the found node has a rx key index set in the unicast key; note this work is separated from the old ieee80211_find_rxnode call so drivers do not need to be aware of the new mechanism o move some node table manipulation under the node table lock to close a race on node delete o add ieee80211_node_delucastkey to do the dirty work of deleting unicast key state for a node (deletes any key and handles key map references) Ath driver: o nuke private sc_keyixmap mechansim in favor of net80211 support o update key alloc api These changes close several race conditions for the ath driver operating in ap mode. Other drivers should see no change. Station mode operation for ath no longer uses the key index map but performance tests show no noticeable change and this will be fixed when the scan table is eliminated with the new scanning support. Tested by: Michal Mertl, avatar, others Reviewed by: avatar, others MFC after: 2 weeks
2005-08-08 18:46:36 +00:00
ieee80211_keyix *, ieee80211_keyix *);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
static int ath_key_delete(struct ieee80211vap *,
Update with last year of work.
2004-12-08 17:34:36 +00:00
const struct ieee80211_key *);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
static int ath_key_set(struct ieee80211vap *, const struct ieee80211_key *,
Update with last year of work.
2004-12-08 17:34:36 +00:00
const u_int8_t mac[IEEE80211_ADDR_LEN]);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
static void ath_key_update_begin(struct ieee80211vap *);
static void ath_key_update_end(struct ieee80211vap *);
static void ath_update_mcast(struct ifnet *);
static void ath_update_promisc(struct ifnet *);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
static void ath_mode_init(struct ath_softc *);
Update with last year of work.
2004-12-08 17:34:36 +00:00
static void ath_setslottime(struct ath_softc *);
static void ath_updateslot(struct ifnet *);
setup the beacon xmit queue to not interrupt; we don't use them and they make the led's flash unnecessarily in adhoc mode
2005-01-18 19:10:17 +00:00
static int ath_beaconq_setup(struct ath_hal *);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
static int ath_beacon_alloc(struct ath_softc *, struct ieee80211_node *);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
static void ath_beacon_update(struct ieee80211vap *, int item);
Update with last year of work.
2004-12-08 17:34:36 +00:00
static void ath_beacon_setup(struct ath_softc *, struct ath_buf *);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
static void ath_beacon_proc(void *, int);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
static struct ath_buf *ath_beacon_generate(struct ath_softc *,
struct ieee80211vap *);
Update with last year of work.
2004-12-08 17:34:36 +00:00
static void ath_bstuck_proc(void *, int);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
static void ath_beacon_return(struct ath_softc *, struct ath_buf *);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
static void ath_beacon_free(struct ath_softc *);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
static void ath_beacon_config(struct ath_softc *, struct ieee80211vap *);
Update with last year of work.
2004-12-08 17:34:36 +00:00
static void ath_descdma_cleanup(struct ath_softc *sc,
struct ath_descdma *, ath_bufhead *);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
static int ath_desc_alloc(struct ath_softc *);
static void ath_desc_free(struct ath_softc *);
Change the calling convention for ic_node_alloc to deal with some longstanding issues: o pass the vap since it's now the "coin of the realm" and required to do things like set initial tx parameters in private node state for use prior to association o pass the mac address as cards that maintain outboard station tables require this to create an entry (e.g. in ibss mode) o remove the node table reference, we only have one node table and it's unlikely this will change so this is not needed to find the com structure
2008-06-07 18:38:02 +00:00
static struct ieee80211_node *ath_node_alloc(struct ieee80211vap *,
const uint8_t [IEEE80211_ADDR_LEN]);
Update with last year of work.
2004-12-08 17:34:36 +00:00
static void ath_node_free(struct ieee80211_node *);
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
static void ath_node_getsignal(const struct ieee80211_node *,
int8_t *, int8_t *);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
static int ath_rxbuf_init(struct ath_softc *, struct ath_buf *);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
static void ath_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m,
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
int subtype, int rssi, int noise, u_int32_t rstamp);
Update with last year of work.
2004-12-08 17:34:36 +00:00
static void ath_setdefantenna(struct ath_softc *, u_int);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
static void ath_rx_proc(void *, int);
Close race in handling mcast traffic when operating as an ap with stations in power save: add a new q where mcast frames are stashed and on beacon update (at DTIM) move frames from the mcast q to the cabq and start it. This ensures the cabq is only manipulated in one place. Sponsored by: Hobnob MFC after: 2 weeks
2006-06-26 03:10:45 +00:00
static void ath_txq_init(struct ath_softc *sc, struct ath_txq *, int);
Update with last year of work.
2004-12-08 17:34:36 +00:00
static struct ath_txq *ath_txq_setup(struct ath_softc*, int qtype, int subtype);
static int ath_tx_setup(struct ath_softc *, int, int);
static int ath_wme_update(struct ieee80211com *);
static void ath_tx_cleanupq(struct ath_softc *, struct ath_txq *);
static void ath_tx_cleanup(struct ath_softc *);
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
static void ath_freetx(struct mbuf *);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
static int ath_tx_start(struct ath_softc *, struct ieee80211_node *,
struct ath_buf *, struct mbuf *);
Update with last year of work.
2004-12-08 17:34:36 +00:00
static void ath_tx_proc_q0(void *, int);
static void ath_tx_proc_q0123(void *, int);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
static void ath_tx_proc(void *, int);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
static void ath_tx_draintxq(struct ath_softc *, struct ath_txq *);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
static int ath_chan_set(struct ath_softc *, struct ieee80211_channel *);
static void ath_draintxq(struct ath_softc *);
static void ath_stoprecv(struct ath_softc *);
static int ath_startrecv(struct ath_softc *);
Update with last year of work.
2004-12-08 17:34:36 +00:00
static void ath_chan_change(struct ath_softc *, struct ieee80211_channel *);
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
static void ath_scan_start(struct ieee80211com *);
static void ath_scan_end(struct ieee80211com *);
static void ath_set_channel(struct ieee80211com *);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
static void ath_calibrate(void *);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
static int ath_newstate(struct ieee80211vap *, enum ieee80211_state, int);
Misc keycache changes: o purge ath_initkeytable; it's not needed o add multicast key search support for supporting multiple group keys (disabled for now; requires updated hal) o create keycache entry for stations using open auth so they get h/w antenna management support o add keycache -> node mapping table; eliminates mac-based lookup in the net80211 layer
2005-06-06 16:39:21 +00:00
static void ath_setup_stationkey(struct ieee80211_node *);
simplify ic_newassoc callback MFC after: 3 days
2005-07-22 17:57:16 +00:00
static void ath_newassoc(struct ieee80211_node *, int);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
static int ath_setregdomain(struct ieee80211com *,
struct ieee80211_regdomain *, int,
struct ieee80211_channel []);
static void ath_getradiocaps(struct ieee80211com *, int *,
struct ieee80211_channel []);
static int ath_getchannels(struct ath_softc *);
better led blinking
2005-01-18 19:03:04 +00:00
static void ath_led_event(struct ath_softc *, int);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
static int ath_rate_setup(struct ath_softc *, u_int mode);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
static void ath_setcurmode(struct ath_softc *, enum ieee80211_phymode);
Update with last year of work.
2004-12-08 17:34:36 +00:00
static void ath_sysctlattach(struct ath_softc *);
raw 802.11 packet transmit support Joint work with: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
2006-08-05 05:07:17 +00:00
static int ath_raw_xmit(struct ieee80211_node *,
struct mbuf *, const struct ieee80211_bpf_params *);
Update with last year of work.
2004-12-08 17:34:36 +00:00
static void ath_bpfattach(struct ath_softc *);
static void ath_announce(struct ath_softc *);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
#ifdef ATH_SUPPORT_TDMA
static void ath_tdma_settimers(struct ath_softc *sc, u_int32_t nexttbtt,
u_int32_t bintval);
static void ath_tdma_bintvalsetup(struct ath_softc *sc,
const struct ieee80211_tdma_state *tdma);
static void ath_tdma_config(struct ath_softc *sc, struct ieee80211vap *vap);
static void ath_tdma_update(struct ieee80211_node *ni,
const struct ieee80211_tdma_param *tdma);
static void ath_tdma_beacon_send(struct ath_softc *sc,
struct ieee80211vap *vap);
static __inline void
ath_hal_setcca(struct ath_hal *ah, int ena)
{
/*
* NB: fill me in; this is not provided by default because disabling
* CCA in most locales violates regulatory.
*/
}
static __inline int
ath_hal_getcca(struct ath_hal *ah)
{
u_int32_t diag;
if (ath_hal_getcapability(ah, HAL_CAP_DIAG, 0, &diag) != HAL_OK)
return 1;
return ((diag & 0x500000) == 0);
}
#define TDMA_EP_MULTIPLIER (1<<10) /* pow2 to optimize out * and / */
#define TDMA_LPF_LEN 6
#define TDMA_DUMMY_MARKER 0x127
#define TDMA_EP_MUL(x, mul) ((x) * (mul))
#define TDMA_IN(x) (TDMA_EP_MUL((x), TDMA_EP_MULTIPLIER))
#define TDMA_LPF(x, y, len) \
((x != TDMA_DUMMY_MARKER) ? (((x) * ((len)-1) + (y)) / (len)) : (y))
#define TDMA_SAMPLE(x, y) do { \
x = TDMA_LPF((x), TDMA_IN(y), TDMA_LPF_LEN); \
} while (0)
#define TDMA_EP_RND(x,mul) \
((((x)%(mul)) >= ((mul)/2)) ? ((x) + ((mul) - 1)) / (mul) : (x)/(mul))
#define TDMA_AVG(x) TDMA_EP_RND(x, TDMA_EP_MULTIPLIER)
#endif /* ATH_SUPPORT_TDMA */
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
SYSCTL_DECL(_hw_ath);
/* XXX validate sysctl values */
New periodic calibration scheme needed for 11n parts that have multiple algorithms and potentially collect multiple samples. Instead of a single calibration interval we now have short and long intervals; the long interval roughly corresponds to the previous single interval. The short interval is used to speedup collection of samples and happens much quicker. We make calls using the short interval until we're told the calibration work is complete at which point we fallback to the long interval. In addition there is a much longer reset interval used to flush all calibration state and cause everthing to start anew. With these changes you can also disable calibration entirely by setting the long interval to zero.
2008-12-07 19:26:34 +00:00
static int ath_longcalinterval = 30; /* long cals every 30 secs */
SYSCTL_INT(_hw_ath, OID_AUTO, longcal, CTLFLAG_RW, &ath_longcalinterval,
0, "long chip calibration interval (secs)");
static int ath_shortcalinterval = 100; /* short cals every 100 ms */
SYSCTL_INT(_hw_ath, OID_AUTO, shortcal, CTLFLAG_RW, &ath_shortcalinterval,
0, "short chip calibration interval (msecs)");
static int ath_resetcalinterval = 20*60; /* reset cal state 20 mins */
SYSCTL_INT(_hw_ath, OID_AUTO, resetcal, CTLFLAG_RW, &ath_resetcalinterval,
0, "reset chip calibration results (secs)");
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
allow the size of tx+rx buffer pools to be tuned MFC after: 2 weeks
2006-02-09 21:03:25 +00:00
static int ath_rxbuf = ATH_RXBUF; /* # rx buffers to allocate */
Add half/quarter rate 11a channel support: o change handling of regdomain-related mib knobs so they can be set post-attach: regdomain, countrycode, outdoor, and xchanmode; the hal will not permit changing the regdomain but we expose it for now o on regdomain/countrycode change recalculate the channel list and push it to the net80211 layer (NB: looks to need more tweaking) o setup rate tables for half/quarter rate channels o honor half/quarter rate channel configs when changing channels o honor half/quarter rate channel configs when setting the slot time o use hack/nonstandard channel numbering scheme for the public safety band to avoid overlapping 2.4G channels on dual-band cards o remove setup of ic_sup_rates; the net80211 layer can do this for us and it simplifies handling of half/quarter rate channels Tested only in Public Safety Band with cards that have RF5112.
2006-12-27 19:07:09 +00:00
SYSCTL_INT(_hw_ath, OID_AUTO, rxbuf, CTLFLAG_RW, &ath_rxbuf,
allow the size of tx+rx buffer pools to be tuned MFC after: 2 weeks
2006-02-09 21:03:25 +00:00
0, "rx buffers allocated");
TUNABLE_INT("hw.ath.rxbuf", &ath_rxbuf);
static int ath_txbuf = ATH_TXBUF; /* # tx buffers to allocate */
Add half/quarter rate 11a channel support: o change handling of regdomain-related mib knobs so they can be set post-attach: regdomain, countrycode, outdoor, and xchanmode; the hal will not permit changing the regdomain but we expose it for now o on regdomain/countrycode change recalculate the channel list and push it to the net80211 layer (NB: looks to need more tweaking) o setup rate tables for half/quarter rate channels o honor half/quarter rate channel configs when changing channels o honor half/quarter rate channel configs when setting the slot time o use hack/nonstandard channel numbering scheme for the public safety band to avoid overlapping 2.4G channels on dual-band cards o remove setup of ic_sup_rates; the net80211 layer can do this for us and it simplifies handling of half/quarter rate channels Tested only in Public Safety Band with cards that have RF5112.
2006-12-27 19:07:09 +00:00
SYSCTL_INT(_hw_ath, OID_AUTO, txbuf, CTLFLAG_RW, &ath_txbuf,
allow the size of tx+rx buffer pools to be tuned MFC after: 2 weeks
2006-02-09 21:03:25 +00:00
0, "tx buffers allocated");
TUNABLE_INT("hw.ath.txbuf", &ath_txbuf);
o add opt_ath.h enable tweaking various config parameters for the driver without modifying the source code o default debug msgs and diag support to off MFC after: 3 days
2006-04-03 18:14:02 +00:00
#ifdef ATH_DEBUG
split debugging messages up into classes; ah_debug is now treated as a bit vector
2004-01-07 18:57:38 +00:00
enum {
ATH_DEBUG_XMIT = 0x00000001, /* basic xmit operation */
ATH_DEBUG_XMIT_DESC = 0x00000002, /* xmit descriptors */
ATH_DEBUG_RECV = 0x00000004, /* basic recv operation */
ATH_DEBUG_RECV_DESC = 0x00000008, /* recv descriptors */
ATH_DEBUG_RATE = 0x00000010, /* rate control */
ATH_DEBUG_RESET = 0x00000020, /* reset processing */
ATH_DEBUG_MODE = 0x00000040, /* mode init/setup */
ATH_DEBUG_BEACON = 0x00000080, /* beacon handling */
ATH_DEBUG_WATCHDOG = 0x00000100, /* watchdog timeout */
ATH_DEBUG_INTR = 0x00001000, /* ISR */
ATH_DEBUG_TX_PROC = 0x00002000, /* tx ISR proc */
ATH_DEBUG_RX_PROC = 0x00004000, /* rx ISR proc */
ATH_DEBUG_BEACON_PROC = 0x00008000, /* beacon ISR proc */
ATH_DEBUG_CALIBRATE = 0x00010000, /* periodic calibration */
Update with last year of work.
2004-12-08 17:34:36 +00:00
ATH_DEBUG_KEYCACHE = 0x00020000, /* key cache management */
ATH_DEBUG_STATE = 0x00040000, /* 802.11 state transitions */
ATH_DEBUG_NODE = 0x00080000, /* node management */
better led blinking
2005-01-18 19:03:04 +00:00
ATH_DEBUG_LED = 0x00100000, /* led management */
Update for rev 0.9.16.16 hal: o add dfs+radar hooks; DFS is presently disabled in the hal o channel and mode handling changes o various api changes o be more aggressive about iq calibration settling so ap mode operation is better immediately after startup o rfkill/rfsilent sysctl support o tpc ack/cts sysctl support MFC after: 2 weeks
2006-02-10 19:07:08 +00:00
ATH_DEBUG_FF = 0x00200000, /* fast frames */
ATH_DEBUG_DFS = 0x00400000, /* DFS processing */
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
ATH_DEBUG_TDMA = 0x00800000, /* TDMA processing */
ATH_DEBUG_TDMA_TIMER = 0x01000000, /* TDMA timer processing */
add regdomain debug msgs
2008-10-27 17:35:09 +00:00
ATH_DEBUG_REGDOMAIN = 0x02000000, /* regulatory processing */
Update with last year of work.
2004-12-08 17:34:36 +00:00
ATH_DEBUG_FATAL = 0x80000000, /* fatal errors */
split debugging messages up into classes; ah_debug is now treated as a bit vector
2004-01-07 18:57:38 +00:00
ATH_DEBUG_ANY = 0xffffffff
};
shuffle debug setup to simplify debugging events during attach
2008-10-27 17:19:39 +00:00
static int ath_debug = 0;
SYSCTL_INT(_hw_ath, OID_AUTO, debug, CTLFLAG_RW, &ath_debug,
0, "control debugging printfs");
TUNABLE_INT("hw.ath.debug", &ath_debug);
Update with last year of work.
2004-12-08 17:34:36 +00:00
#define IFF_DUMPPKTS(sc, m) \
add paren's so we can supply a|b as a debug mask
2005-01-18 18:11:04 +00:00
((sc->sc_debug & (m)) || \
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
(sc->sc_ifp->if_flags & (IFF_DEBUG|IFF_LINK2)) == (IFF_DEBUG|IFF_LINK2))
Update with last year of work.
2004-12-08 17:34:36 +00:00
#define DPRINTF(sc, m, fmt, ...) do { \
add paren's so we can supply a|b as a debug mask
2005-01-18 18:11:04 +00:00
if (sc->sc_debug & (m)) \
Update with last year of work.
2004-12-08 17:34:36 +00:00
printf(fmt, __VA_ARGS__); \
} while (0)
#define KEYPRINTF(sc, ix, hk, mac) do { \
if (sc->sc_debug & ATH_DEBUG_KEYCACHE) \
Add support for newer parts that do not require separate keycache entries for tx+rx mic keys. This requires a newer hal, but works fine with the current hal in cvs. MFC after: 2 weeks
2006-09-18 16:26:19 +00:00
ath_keyprint(sc, __func__, ix, hk, mac); \
Update with last year of work.
2004-12-08 17:34:36 +00:00
} while (0)
print the extended tx/rx descriptor for 5416 and later parts
2008-11-24 01:34:56 +00:00
static void ath_printrxbuf(struct ath_softc *, const struct ath_buf *bf,
u_int ix, int);
static void ath_printtxbuf(struct ath_softc *, const struct ath_buf *bf,
u_int qnum, u_int ix, int done);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
#else
Update with last year of work.
2004-12-08 17:34:36 +00:00
#define IFF_DUMPPKTS(sc, m) \
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
((sc->sc_ifp->if_flags & (IFF_DEBUG|IFF_LINK2)) == (IFF_DEBUG|IFF_LINK2))
fix build w/o AR_DEBUG MFC after: 2 weeks
2006-02-15 18:35:09 +00:00
#define DPRINTF(sc, m, fmt, ...) do { \
(void) sc; \
} while (0)
#define KEYPRINTF(sc, k, ix, mac) do { \
(void) sc; \
} while (0)
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
#endif
Update with last year of work.
2004-12-08 17:34:36 +00:00
MALLOC_DEFINE(M_ATHDEV, "athdev", "ath driver dma buffers");
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
int
ath_attach(u_int16_t devid, struct ath_softc *sc)
{
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
struct ifnet *ifp;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
struct ieee80211com *ic;
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
struct ath_hal *ah = NULL;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
HAL_STATUS status;
Update with last year of work.
2004-12-08 17:34:36 +00:00
int error = 0, i;
prepare for a new hal
2008-10-27 18:30:33 +00:00
u_int wmodes;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
DPRINTF(sc, ATH_DEBUG_ANY, "%s: devid 0x%x\n", __func__, devid);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
if (ifp == NULL) {
device_printf(sc->sc_dev, "can not if_alloc()\n");
error = ENOSPC;
goto bad;
}
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ic = ifp->if_l2com;
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
/* set these up early for if_printf use */
Replace the if_name and if_unit members of struct ifnet with new members if_xname, if_dname, and if_dunit. if_xname is the name of the interface and if_dname/unit are the driver name and instance. This change paves the way for interface renaming and enhanced pseudo device creation and configuration symantics. Approved By: re (in principle) Reviewed By: njl, imp Tested On: i386, amd64, sparc64 Obtained From: NetBSD (if_xname)
2003-10-31 18:32:15 +00:00
if_initname(ifp, device_get_name(sc->sc_dev),
Update with last year of work.
2004-12-08 17:34:36 +00:00
device_get_unit(sc->sc_dev));
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
move hal bus+tag externalization to the bus glue code where it belongs; this is a noop on all current freebsd architectures MFC after: 1 month
2006-06-05 17:51:20 +00:00
ah = ath_hal_attach(devid, sc, sc->sc_st, sc->sc_sh, &status);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
if (ah == NULL) {
if_printf(ifp, "unable to attach hardware; HAL status %u\n",
status);
error = ENXIO;
goto bad;
}
o check hal ABI version to catch driver-HAL mismatches o print MAC, PHY, and radio h/w revisions at attach
2003-11-01 03:37:33 +00:00
if (ah->ah_abi != HAL_ABI_VERSION) {
Update with last year of work.
2004-12-08 17:34:36 +00:00
if_printf(ifp, "HAL ABI mismatch detected "
"(HAL:0x%x != driver:0x%x)\n",
o check hal ABI version to catch driver-HAL mismatches o print MAC, PHY, and radio h/w revisions at attach
2003-11-01 03:37:33 +00:00
ah->ah_abi, HAL_ABI_VERSION);
error = ENXIO;
goto bad;
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
sc->sc_ah = ah;
Close a race where ath_intr is installed and may be called before the HAL is setup: use sc_invalid to discard such entries into ath_intr. This can easily happen if the device is assigned a shared IRQ.
2003-08-13 21:29:35 +00:00
sc->sc_invalid = 0; /* ready to go, enable interrupt handling */
shuffle debug setup to simplify debugging events during attach
2008-10-27 17:19:39 +00:00
#ifdef ATH_DEBUG
sc->sc_debug = ath_debug;
#endif
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* Check if the MAC has multi-rate retry support.
* We do this by trying to setup a fake extended
* descriptor. MAC's that don't have support will
* return false w/o doing anything. MAC's that do
* support it will return true w/o doing anything.
*/
sc->sc_mrretry = ath_hal_setupxtxdesc(ah, NULL, 0,0, 0,0, 0,0);
/*
* Check if the device has hardware counters for PHY
* errors. If so we need to enable the MIB interrupt
* so we can act on stat triggers.
*/
if (ath_hal_hwphycounters(ah))
sc->sc_needmib = 1;
/*
* Get the hardware key cache size.
*/
sc->sc_keymax = ath_hal_keycachesize(ah);
Misc keycache changes: o purge ath_initkeytable; it's not needed o add multicast key search support for supporting multiple group keys (disabled for now; requires updated hal) o create keycache entry for stations using open auth so they get h/w antenna management support o add keycache -> node mapping table; eliminates mac-based lookup in the net80211 layer
2005-06-06 16:39:21 +00:00
if (sc->sc_keymax > ATH_KEYMAX) {
if_printf(ifp, "Warning, using only %u of %u key cache slots\n",
ATH_KEYMAX, sc->sc_keymax);
sc->sc_keymax = ATH_KEYMAX;
Update with last year of work.
2004-12-08 17:34:36 +00:00
}
/*
* Reset the key cache since some parts do not
* reset the contents on initial power up.
*/
for (i = 0; i < sc->sc_keymax; i++)
ath_hal_keyreset(ah, i);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
/*
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
* Collect the default channel list.
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
*/
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
error = ath_getchannels(sc);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
if (error != 0)
goto bad;
/*
* Setup rate tables for all potential media types.
*/
ath_rate_setup(sc, IEEE80211_MODE_11A);
ath_rate_setup(sc, IEEE80211_MODE_11B);
ath_rate_setup(sc, IEEE80211_MODE_11G);
Update with last year of work.
2004-12-08 17:34:36 +00:00
ath_rate_setup(sc, IEEE80211_MODE_TURBO_A);
ath_rate_setup(sc, IEEE80211_MODE_TURBO_G);
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
ath_rate_setup(sc, IEEE80211_MODE_STURBO_A);
ath_rate_setup(sc, IEEE80211_MODE_11NA);
ath_rate_setup(sc, IEEE80211_MODE_11NG);
Add initial support for 900MHz cards like the Ubiquiti SR9: o eliminate assumptions that half/quarter rate channels on exist in 11a o handle frequency mapping between hal and net80211; hal gives us freq's in the range 2422..2437 that we remap MFC after: 1 month
2007-01-15 01:15:57 +00:00
ath_rate_setup(sc, IEEE80211_MODE_HALF);
ath_rate_setup(sc, IEEE80211_MODE_QUARTER);
Add half/quarter rate 11a channel support: o change handling of regdomain-related mib knobs so they can be set post-attach: regdomain, countrycode, outdoor, and xchanmode; the hal will not permit changing the regdomain but we expose it for now o on regdomain/countrycode change recalculate the channel list and push it to the net80211 layer (NB: looks to need more tweaking) o setup rate tables for half/quarter rate channels o honor half/quarter rate channel configs when changing channels o honor half/quarter rate channel configs when setting the slot time o use hack/nonstandard channel numbering scheme for the public safety band to avoid overlapping 2.4G channels on dual-band cards o remove setup of ic_sup_rates; the net80211 layer can do this for us and it simplifies handling of half/quarter rate channels Tested only in Public Safety Band with cards that have RF5112.
2006-12-27 19:07:09 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
/* NB: setup here so ath_rate_update is happy */
ath_setcurmode(sc, IEEE80211_MODE_11A);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* Allocate tx+rx descriptors and populate the lists.
*/
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
error = ath_desc_alloc(sc);
if (error != 0) {
if_printf(ifp, "failed to allocate descriptors: %d\n", error);
goto bad;
}
mark the scan and calibrate callouts MPSAFE
2003-08-19 21:05:47 +00:00
callout_init(&sc->sc_cal_ch, CALLOUT_MPSAFE);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
o convert mutex calls to #defines for portability, etc. o destroy mutex's on detach (was missing)
2003-10-14 22:51:45 +00:00
ATH_TXBUF_LOCK_INIT(sc);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
use a private task queue thread MFC after: 2 weeks
2006-02-09 21:48:51 +00:00
sc->sc_tq = taskqueue_create("ath_taskq", M_NOWAIT,
taskqueue_thread_enqueue, &sc->sc_tq);
taskqueue_start_threads(&sc->sc_tq, 1, PI_NET,
"%s taskq", ifp->if_xname);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
TASK_INIT(&sc->sc_rxtask, 0, ath_rx_proc, sc);
TASK_INIT(&sc->sc_bmisstask, 0, ath_bmiss_proc, sc);
Update for rev 0.9.16.16 hal: o add dfs+radar hooks; DFS is presently disabled in the hal o channel and mode handling changes o various api changes o be more aggressive about iq calibration settling so ap mode operation is better immediately after startup o rfkill/rfsilent sysctl support o tpc ack/cts sysctl support MFC after: 2 weeks
2006-02-10 19:07:08 +00:00
TASK_INIT(&sc->sc_bstucktask,0, ath_bstuck_proc, sc);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
/*
Update with last year of work.
2004-12-08 17:34:36 +00:00
* Allocate hardware transmit queues: one queue for
* beacon frames and one data queue for each QoS
* priority. Note that the hal handles reseting
* these queues at the needed time.
*
* XXX PS-Poll
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
*/
setup the beacon xmit queue to not interrupt; we don't use them and they make the led's flash unnecessarily in adhoc mode
2005-01-18 19:10:17 +00:00
sc->sc_bhalq = ath_beaconq_setup(ah);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
if (sc->sc_bhalq == (u_int) -1) {
if_printf(ifp, "unable to setup a beacon xmit queue!\n");
Update with last year of work.
2004-12-08 17:34:36 +00:00
error = EIO;
goto bad2;
}
sc->sc_cabq = ath_txq_setup(sc, HAL_TX_QUEUE_CAB, 0);
if (sc->sc_cabq == NULL) {
if_printf(ifp, "unable to setup CAB xmit queue!\n");
error = EIO;
goto bad2;
}
/* NB: insure BK queue is the lowest priority h/w queue */
if (!ath_tx_setup(sc, WME_AC_BK, HAL_WME_AC_BK)) {
if_printf(ifp, "unable to setup xmit queue for %s traffic!\n",
ieee80211_wme_acnames[WME_AC_BK]);
error = EIO;
goto bad2;
}
if (!ath_tx_setup(sc, WME_AC_BE, HAL_WME_AC_BE) ||
!ath_tx_setup(sc, WME_AC_VI, HAL_WME_AC_VI) ||
!ath_tx_setup(sc, WME_AC_VO, HAL_WME_AC_VO)) {
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
/*
Update with last year of work.
2004-12-08 17:34:36 +00:00
* Not enough hardware tx queues to properly do WME;
* just punt and assign them all to the same h/w queue.
* We could do a better job of this if, for example,
* we allocate queues when we switch from station to
* AP mode.
*/
if (sc->sc_ac2q[WME_AC_VI] != NULL)
ath_tx_cleanupq(sc, sc->sc_ac2q[WME_AC_VI]);
if (sc->sc_ac2q[WME_AC_BE] != NULL)
ath_tx_cleanupq(sc, sc->sc_ac2q[WME_AC_BE]);
sc->sc_ac2q[WME_AC_BE] = sc->sc_ac2q[WME_AC_BK];
sc->sc_ac2q[WME_AC_VI] = sc->sc_ac2q[WME_AC_BK];
sc->sc_ac2q[WME_AC_VO] = sc->sc_ac2q[WME_AC_BK];
}
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
/*
Update with last year of work.
2004-12-08 17:34:36 +00:00
* Special case certain configurations. Note the
* CAB queue is handled by these specially so don't
* include them when checking the txq setup mask.
*/
switch (sc->sc_txqsetup &~ (1<<sc->sc_cabq->axq_qnum)) {
case 0x01:
TASK_INIT(&sc->sc_txtask, 0, ath_tx_proc_q0, sc);
break;
case 0x0f:
TASK_INIT(&sc->sc_txtask, 0, ath_tx_proc_q0123, sc);
break;
default:
TASK_INIT(&sc->sc_txtask, 0, ath_tx_proc, sc);
break;
}
/*
* Setup rate control. Some rate control modules
* call back to change the anntena state so expose
* the necessary entry points.
* XXX maybe belongs in struct ath_ratectrl?
*/
sc->sc_setdefantenna = ath_setdefantenna;
sc->sc_rc = ath_rate_attach(sc);
if (sc->sc_rc == NULL) {
error = EIO;
cleanup descriptor allocation if attach fails Obtained from: madwifi
2004-04-02 23:47:39 +00:00
goto bad2;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
better led blinking
2005-01-18 19:03:04 +00:00
sc->sc_blinking = 0;
Update with last year of work.
2004-12-08 17:34:36 +00:00
sc->sc_ledstate = 1;
better led blinking
2005-01-18 19:03:04 +00:00
sc->sc_ledon = 0; /* low true */
sc->sc_ledidle = (2700*hz)/1000; /* 2.7sec */
callout_init(&sc->sc_ledtimer, CALLOUT_MPSAFE);
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* Auto-enable soft led processing for IBM cards and for
* 5211 minipci cards. Users can also manually enable/disable
* support with a sysctl.
*/
sc->sc_softled = (devid == AR5212_DEVID_IBM || devid == AR5211_DEVID);
if (sc->sc_softled) {
ath_hal_gpioCfgOutput(ah, sc->sc_ledpin);
better led blinking
2005-01-18 19:03:04 +00:00
ath_hal_gpioset(ah, sc->sc_ledpin, !sc->sc_ledon);
Update with last year of work.
2004-12-08 17:34:36 +00:00
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
ifp->if_softc = sc;
ifp->if_flags = IFF_SIMPLEX | IFF_BROADCAST | IFF_MULTICAST;
ifp->if_start = ath_start;
ifp->if_watchdog = ath_watchdog;
ifp->if_ioctl = ath_ioctl;
ifp->if_init = ath_init;
Second part of ALTQ driver modifications, covering: an(4), ath(4), hme(4), ndis(4), vr(4) and wi(4) Please help testing: http://people.freebsd.org/~mlaier/ALTQ_driver/ Tested by: Vaidas Damosevicius (an, ath, wi) Roman Divacky (vr) Submitted by: yongari (hme)
2004-08-01 23:58:04 +00:00
IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
IFQ_SET_READY(&ifp->if_snd);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
ic->ic_ifp = ifp;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
/* XXX not right but it's not used anywhere important */
ic->ic_phytype = IEEE80211_T_OFDM;
ic->ic_opmode = IEEE80211_M_STA;
Update with last year of work.
2004-12-08 17:34:36 +00:00
ic->ic_caps =
Minor cleanup of vap create work: o add IEEE80211_C_STA capability to indicate sta mode is supported (was previously assumed) and mark drivers as capable o add ieee80211_opcap array to map an opmode to the equivalent capability bit o move IEEE80211_C_OPMODE definition to where capabilities are defined so it's clear it should be kept in sync (on future additions) o check device capabilities in clone create before trying to create a vap; this makes driver checks unneeded o make error codes return on failed clone request unique o temporarily add console printfs on clone request failures to aid in debugging; these will move under DIAGNOSTIC or similar before release
2008-05-12 00:15:30 +00:00
IEEE80211_C_STA /* station mode */
| IEEE80211_C_IBSS /* ibss, nee adhoc, mode */
indicate device receives all management frames
2003-10-17 21:55:53 +00:00
| IEEE80211_C_HOSTAP /* hostap mode */
| IEEE80211_C_MONITOR /* monitor mode */
add adhoc demo mode support MFC after: 2 weeks
2006-02-09 21:42:53 +00:00
| IEEE80211_C_AHDEMO /* adhoc demo mode */
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
| IEEE80211_C_WDS /* 4-address traffic works */
indicate device receives all management frames
2003-10-17 21:55:53 +00:00
| IEEE80211_C_SHPREAMBLE /* short preamble supported */
Update with last year of work.
2004-12-08 17:34:36 +00:00
| IEEE80211_C_SHSLOT /* short slot time supported */
| IEEE80211_C_WPA /* capable of WPA1+WPA2 */
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
| IEEE80211_C_BGSCAN /* capable of bg scanning */
| IEEE80211_C_TXFRAG /* handle tx frags */
remove use IEEE80211_C_RCVMGT
2004-04-02 23:37:00 +00:00
;
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* Query the hal to figure out h/w crypto support.
*/
if (ath_hal_ciphersupported(ah, HAL_CIPHER_WEP))
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ic->ic_cryptocaps |= IEEE80211_CRYPTO_WEP;
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (ath_hal_ciphersupported(ah, HAL_CIPHER_AES_OCB))
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ic->ic_cryptocaps |= IEEE80211_CRYPTO_AES_OCB;
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (ath_hal_ciphersupported(ah, HAL_CIPHER_AES_CCM))
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ic->ic_cryptocaps |= IEEE80211_CRYPTO_AES_CCM;
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (ath_hal_ciphersupported(ah, HAL_CIPHER_CKIP))
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ic->ic_cryptocaps |= IEEE80211_CRYPTO_CKIP;
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (ath_hal_ciphersupported(ah, HAL_CIPHER_TKIP)) {
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ic->ic_cryptocaps |= IEEE80211_CRYPTO_TKIP;
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* Check if h/w does the MIC and/or whether the
* separate key cache entries are required to
* handle both tx+rx MIC keys.
*/
if (ath_hal_ciphersupported(ah, HAL_CIPHER_MIC))
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ic->ic_cryptocaps |= IEEE80211_CRYPTO_TKIPMIC;
Add support for newer parts that do not require separate keycache entries for tx+rx mic keys. This requires a newer hal, but works fine with the current hal in cvs. MFC after: 2 weeks
2006-09-18 16:26:19 +00:00
/*
* If the h/w supports storing tx+rx MIC keys
* in one cache slot automatically enable use.
*/
if (ath_hal_hastkipsplit(ah) ||
!ath_hal_settkipsplit(ah, AH_FALSE))
Update with last year of work.
2004-12-08 17:34:36 +00:00
sc->sc_splitmic = 1;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
/*
* If the h/w can do TKIP MIC together with WME then
* we use it; otherwise we force the MIC to be done
* in software by the net80211 layer.
*/
if (ath_hal_haswmetkipmic(ah))
sc->sc_wmetkipmic = 1;
Update with last year of work.
2004-12-08 17:34:36 +00:00
}
Misc keycache changes: o purge ath_initkeytable; it's not needed o add multicast key search support for supporting multiple group keys (disabled for now; requires updated hal) o create keycache entry for stations using open auth so they get h/w antenna management support o add keycache -> node mapping table; eliminates mac-based lookup in the net80211 layer
2005-06-06 16:39:21 +00:00
sc->sc_hasclrkey = ath_hal_ciphersupported(ah, HAL_CIPHER_CLR);
sc->sc_mcastkey = ath_hal_getmcastkeysearch(ah);
Add support for newer parts that do not require separate keycache entries for tx+rx mic keys. This requires a newer hal, but works fine with the current hal in cvs. MFC after: 2 weeks
2006-09-18 16:26:19 +00:00
/*
* Mark key cache slots associated with global keys
* as in use. If we knew TKIP was not to be used we
* could leave the +32, +64, and +32+64 slots free.
*/
for (i = 0; i < IEEE80211_WEP_NKID; i++) {
setbit(sc->sc_keymap, i);
setbit(sc->sc_keymap, i+64);
if (sc->sc_splitmic) {
setbit(sc->sc_keymap, i+32);
setbit(sc->sc_keymap, i+32+64);
}
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* TPC support can be done either with a global cap or
* per-packet support. The latter is not available on
* all parts. We're a bit pedantic here as all parts
* support a global cap.
*/
o fix setup of sc_diversity; the hal does not give us reliable status after attach, only after a reset o when setting diversity via the sysctl don't update sc_diversity until we know the hal requested worked o while here eliminate sc_hasdiversity and sc_hastpc; just query the hal each time since these are the only places we need to know MFC after: 3 days
2005-07-24 05:11:39 +00:00
if (ath_hal_hastpc(ah) || ath_hal_hastxpowlimit(ah))
Update with last year of work.
2004-12-08 17:34:36 +00:00
ic->ic_caps |= IEEE80211_C_TXPMGT;
/*
* Mark WME capability only if we have sufficient
* hardware queues to do proper priority scheduling.
*/
if (sc->sc_ac2q[WME_AC_BE] != sc->sc_ac2q[WME_AC_BK])
ic->ic_caps |= IEEE80211_C_WME;
/*
Misc keycache changes: o purge ath_initkeytable; it's not needed o add multicast key search support for supporting multiple group keys (disabled for now; requires updated hal) o create keycache entry for stations using open auth so they get h/w antenna management support o add keycache -> node mapping table; eliminates mac-based lookup in the net80211 layer
2005-06-06 16:39:21 +00:00
* Check for misc other capabilities.
Update with last year of work.
2004-12-08 17:34:36 +00:00
*/
if (ath_hal_hasbursting(ah))
ic->ic_caps |= IEEE80211_C_BURST;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
sc->sc_hasbmask = ath_hal_hasbssidmask(ah);
sc->sc_hastsfadd = ath_hal_hastsfadjust(ah);
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
if (ath_hal_hasfastframes(ah))
ic->ic_caps |= IEEE80211_C_FF;
prepare for a new hal
2008-10-27 18:30:33 +00:00
wmodes = ath_hal_getwirelessmodes(ah, ic->ic_regdomain.country);
if (wmodes & (HAL_MODE_108G|HAL_MODE_TURBO))
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
ic->ic_caps |= IEEE80211_C_TURBOP;
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
#ifdef ATH_SUPPORT_TDMA
if (ath_hal_macversion(ah) > 0x78) {
ic->ic_caps |= IEEE80211_C_TDMA; /* capable of TDMA */
ic->ic_tdma_update = ath_tdma_update;
}
#endif
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* Indicate we need the 802.11 header padded to a
* 32-bit boundary for 4-address and QoS frames.
*/
ic->ic_flags |= IEEE80211_F_DATAPAD;
/*
* Query the hal about antenna support.
*/
sc->sc_defant = ath_hal_getdefantenna(ah);
/*
* Not all chips have the VEOL support we want to
* use with IBSS beacons; check here for it.
*/
sc->sc_hasveol = ath_hal_hasveol(ah);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
/* get mac address from hardware */
ath_hal_getmac(ah, ic->ic_myaddr);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if (sc->sc_hasbmask)
ath_hal_getbssidmask(ah, sc->sc_hwbssidmask);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
/* NB: used to size node table key mapping array */
ic->ic_max_keyix = sc->sc_keymax;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
/* call MI attach routine. */
Update with last year of work.
2004-12-08 17:34:36 +00:00
ieee80211_ifattach(ic);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ic->ic_setregdomain = ath_setregdomain;
ic->ic_getradiocaps = ath_getradiocaps;
sc->sc_opmode = HAL_M_STA;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
/* override default methods */
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ic->ic_newassoc = ath_newassoc;
ic->ic_updateslot = ath_updateslot;
ic->ic_wme.wme_update = ath_wme_update;
ic->ic_vap_create = ath_vap_create;
ic->ic_vap_delete = ath_vap_delete;
ic->ic_raw_xmit = ath_raw_xmit;
ic->ic_update_mcast = ath_update_mcast;
ic->ic_update_promisc = ath_update_promisc;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
ic->ic_node_alloc = ath_node_alloc;
do proper subclassing of node free+copy; the previous hack falls apart when the 802.11 layer does useful work Obtained from: madwifi
2004-04-03 00:06:23 +00:00
sc->sc_node_free = ic->ic_node_free;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
ic->ic_node_free = ath_node_free;
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
ic->ic_node_getsignal = ath_node_getsignal;
ic->ic_scan_start = ath_scan_start;
ic->ic_scan_end = ath_scan_end;
ic->ic_set_channel = ath_set_channel;
Add support for the experimental radiotap capture format. With this we no longer need the debugging code to dump packets.
2003-09-05 22:22:49 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
ath_bpfattach(sc);
o move ath_sysctlattach down so variables it depends on are setup o use any fixed tx antenna for beacons transmitted in adhoc mode Submitted by: David Young MFC after: 3 days
2005-07-23 05:34:29 +00:00
/*
* Setup dynamic sysctl's now that country code and
* regdomain are available from the hal.
*/
ath_sysctlattach(sc);
Add support for the experimental radiotap capture format. With this we no longer need the debugging code to dump packets.
2003-09-05 22:22:49 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (bootverbose)
ieee80211_announce(ic);
ath_announce(sc);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
return 0;
cleanup descriptor allocation if attach fails Obtained from: madwifi
2004-04-02 23:47:39 +00:00
bad2:
Update with last year of work.
2004-12-08 17:34:36 +00:00
ath_tx_cleanup(sc);
cleanup descriptor allocation if attach fails Obtained from: madwifi
2004-04-02 23:47:39 +00:00
ath_desc_free(sc);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
bad:
if (ah)
ath_hal_detach(ah);
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
if (ifp != NULL)
if_free(ifp);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
sc->sc_invalid = 1;
return error;
}
int
ath_detach(struct ath_softc *sc)
{
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
struct ifnet *ifp = sc->sc_ifp;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
DPRINTF(sc, ATH_DEBUG_ANY, "%s: if_flags %x\n",
__func__, ifp->if_flags);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* NB: the order of these is important:
close a race on detach by reordering bpfdetach and taskqueue_free
2008-05-28 23:55:11 +00:00
* o stop the chip so no more interrupts will fire
Update with last year of work.
2004-12-08 17:34:36 +00:00
* o call the 802.11 layer before detaching the hal to
* insure callbacks into the driver to delete global
* key cache entries can be handled
close a race on detach by reordering bpfdetach and taskqueue_free
2008-05-28 23:55:11 +00:00
* o free the taskqueue which drains any pending tasks
* o reclaim the bpf tap now that we know nothing will use
* it (e.g. rx processing from the task q thread)
Update with last year of work.
2004-12-08 17:34:36 +00:00
* o reclaim the tx queue data structures after calling
* the 802.11 layer as we'll get called back to reclaim
* node state and potentially want to use them
* o to cleanup the tx queues the hal is called, so detach
* it last
* Other than that, it's straightforward...
*/
close a race on detach by reordering bpfdetach and taskqueue_free
2008-05-28 23:55:11 +00:00
ath_stop(ifp);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ieee80211_ifdetach(ifp->if_l2com);
close a race on detach by reordering bpfdetach and taskqueue_free
2008-05-28 23:55:11 +00:00
taskqueue_free(sc->sc_tq);
bpfdetach(ifp);
add tx99 hooks MFC after: 2 weeks
2006-02-09 21:28:11 +00:00
#ifdef ATH_TX99_DIAG
if (sc->sc_tx99 != NULL)
sc->sc_tx99->detach(sc->sc_tx99);
#endif
Update with last year of work.
2004-12-08 17:34:36 +00:00
ath_rate_detach(sc->sc_rc);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
ath_desc_free(sc);
Update with last year of work.
2004-12-08 17:34:36 +00:00
ath_tx_cleanup(sc);
close a race on detach by reordering bpfdetach and taskqueue_free
2008-05-28 23:55:11 +00:00
ath_hal_detach(sc->sc_ah); /* NB: sets chip in full sleep */
Fix "struct ifnet" leak on detach.
2005-09-16 10:09:23 +00:00
if_free(ifp);
o convert mutex calls to #defines for portability, etc. o destroy mutex's on detach (was missing)
2003-10-14 22:51:45 +00:00
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
return 0;
}
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
/*
* MAC address handling for multiple BSS on the same radio.
* The first vap uses the MAC address from the EEPROM. For
* subsequent vap's we set the U/L bit (bit 1) in the MAC
* address and use the next six bits as an index.
*/
static void
assign_address(struct ath_softc *sc, uint8_t mac[IEEE80211_ADDR_LEN], int clone)
{
int i;
if (clone && sc->sc_hasbmask) {
/* NB: we only do this if h/w supports multiple bssid */
for (i = 0; i < 8; i++)
if ((sc->sc_bssidmask & (1<<i)) == 0)
break;
if (i != 0)
mac[0] |= (i << 2)|0x2;
} else
i = 0;
sc->sc_bssidmask |= 1<<i;
sc->sc_hwbssidmask[0] &= ~mac[0];
if (i == 0)
sc->sc_nbssid0++;
}
static void
reclaim_address(struct ath_softc *sc, const uint8_t mac[IEEE80211_ADDR_LEN])
{
int i = mac[0] >> 2;
uint8_t mask;
if (i != 0 || --sc->sc_nbssid0 == 0) {
sc->sc_bssidmask &= ~(1<<i);
/* recalculate bssid mask from remaining addresses */
mask = 0xff;
for (i = 1; i < 8; i++)
if (sc->sc_bssidmask & (1<<i))
mask &= ~((i<<2)|0x2);
sc->sc_hwbssidmask[0] |= mask;
}
}
/*
* Assign a beacon xmit slot. We try to space out
* assignments so when beacons are staggered the
* traffic coming out of the cab q has maximal time
* to go out before the next beacon is scheduled.
*/
static int
assign_bslot(struct ath_softc *sc)
{
u_int slot, free;
free = 0;
for (slot = 0; slot < ATH_BCBUF; slot++)
if (sc->sc_bslot[slot] == NULL) {
if (sc->sc_bslot[(slot+1)%ATH_BCBUF] == NULL &&
sc->sc_bslot[(slot-1)%ATH_BCBUF] == NULL)
return slot;
free = slot;
/* NB: keep looking for a double slot */
}
return free;
}
static struct ieee80211vap *
ath_vap_create(struct ieee80211com *ic,
const char name[IFNAMSIZ], int unit, int opmode, int flags,
const uint8_t bssid[IEEE80211_ADDR_LEN],
const uint8_t mac0[IEEE80211_ADDR_LEN])
{
struct ath_softc *sc = ic->ic_ifp->if_softc;
struct ath_vap *avp;
struct ieee80211vap *vap;
uint8_t mac[IEEE80211_ADDR_LEN];
int ic_opmode, needbeacon, error;
avp = (struct ath_vap *) malloc(sizeof(struct ath_vap),
M_80211_VAP, M_WAITOK | M_ZERO);
needbeacon = 0;
IEEE80211_ADDR_COPY(mac, mac0);
ATH_LOCK(sc);
switch (opmode) {
case IEEE80211_M_STA:
if (sc->sc_nstavaps != 0) { /* XXX only 1 sta for now */
device_printf(sc->sc_dev, "only 1 sta vap supported\n");
goto bad;
}
if (sc->sc_nvaps) {
/*
* When there are multiple vaps we must fall
* back to s/w beacon miss handling.
*/
flags |= IEEE80211_CLONE_NOBEACONS;
}
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
if (flags & IEEE80211_CLONE_NOBEACONS)
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ic_opmode = IEEE80211_M_HOSTAP;
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
else
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ic_opmode = opmode;
break;
case IEEE80211_M_IBSS:
if (sc->sc_nvaps != 0) { /* XXX only 1 for now */
device_printf(sc->sc_dev,
"only 1 ibss vap supported\n");
goto bad;
}
ic_opmode = opmode;
needbeacon = 1;
break;
case IEEE80211_M_AHDEMO:
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
#ifdef ATH_SUPPORT_TDMA
if (flags & IEEE80211_CLONE_TDMA) {
needbeacon = 1;
flags |= IEEE80211_CLONE_NOBEACONS;
}
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
/* fall thru... */
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
#endif
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
case IEEE80211_M_MONITOR:
if (sc->sc_nvaps != 0 && ic->ic_opmode != opmode) {
/* XXX not right for monitor mode */
ic_opmode = ic->ic_opmode;
} else
ic_opmode = opmode;
break;
case IEEE80211_M_HOSTAP:
needbeacon = 1;
/* fall thru... */
case IEEE80211_M_WDS:
if (sc->sc_nvaps && ic->ic_opmode == IEEE80211_M_STA) {
device_printf(sc->sc_dev,
"wds not supported in sta mode\n");
goto bad;
}
if (opmode == IEEE80211_M_WDS) {
/*
* Silently remove any request for a unique
* bssid; WDS vap's always share the local
* mac address.
*/
flags &= ~IEEE80211_CLONE_BSSID;
}
ic_opmode = IEEE80211_M_HOSTAP;
break;
default:
device_printf(sc->sc_dev, "unknown opmode %d\n", opmode);
goto bad;
}
/*
* Check that a beacon buffer is available; the code below assumes it.
*/
if (needbeacon & STAILQ_EMPTY(&sc->sc_bbuf)) {
device_printf(sc->sc_dev, "no beacon buffer available\n");
goto bad;
}
/* STA, AHDEMO? */
if (opmode == IEEE80211_M_HOSTAP) {
assign_address(sc, mac, flags & IEEE80211_CLONE_BSSID);
ath_hal_setbssidmask(sc->sc_ah, sc->sc_hwbssidmask);
}
vap = &avp->av_vap;
/* XXX can't hold mutex across if_alloc */
ATH_UNLOCK(sc);
error = ieee80211_vap_setup(ic, vap, name, unit, opmode, flags,
bssid, mac);
ATH_LOCK(sc);
if (error != 0) {
device_printf(sc->sc_dev, "%s: error %d creating vap\n",
__func__, error);
goto bad2;
}
/* h/w crypto support */
vap->iv_key_alloc = ath_key_alloc;
vap->iv_key_delete = ath_key_delete;
vap->iv_key_set = ath_key_set;
vap->iv_key_update_begin = ath_key_update_begin;
vap->iv_key_update_end = ath_key_update_end;
/* override various methods */
avp->av_recv_mgmt = vap->iv_recv_mgmt;
vap->iv_recv_mgmt = ath_recv_mgmt;
vap->iv_reset = ath_reset_vap;
vap->iv_update_beacon = ath_beacon_update;
avp->av_newstate = vap->iv_newstate;
vap->iv_newstate = ath_newstate;
avp->av_bmiss = vap->iv_bmiss;
vap->iv_bmiss = ath_bmiss_vap;
avp->av_bslot = -1;
if (needbeacon) {
/*
* Allocate beacon state and setup the q for buffered
* multicast frames. We know a beacon buffer is
* available because we checked above.
*/
avp->av_bcbuf = STAILQ_FIRST(&sc->sc_bbuf);
STAILQ_REMOVE_HEAD(&sc->sc_bbuf, bf_list);
if (opmode != IEEE80211_M_IBSS || !sc->sc_hasveol) {
/*
* Assign the vap to a beacon xmit slot. As above
* this cannot fail to find a free one.
*/
avp->av_bslot = assign_bslot(sc);
KASSERT(sc->sc_bslot[avp->av_bslot] == NULL,
("beacon slot %u not empty", avp->av_bslot));
sc->sc_bslot[avp->av_bslot] = vap;
sc->sc_nbcnvaps++;
}
if (sc->sc_hastsfadd && sc->sc_nbcnvaps > 0) {
/*
* Multple vaps are to transmit beacons and we
* have h/w support for TSF adjusting; enable
* use of staggered beacons.
*/
sc->sc_stagbeacons = 1;
}
ath_txq_init(sc, &avp->av_mcastq, ATH_TXQ_SWQ);
}
ic->ic_opmode = ic_opmode;
if (opmode != IEEE80211_M_WDS) {
sc->sc_nvaps++;
if (opmode == IEEE80211_M_STA)
sc->sc_nstavaps++;
}
switch (ic_opmode) {
case IEEE80211_M_IBSS:
sc->sc_opmode = HAL_M_IBSS;
break;
case IEEE80211_M_STA:
sc->sc_opmode = HAL_M_STA;
break;
case IEEE80211_M_AHDEMO:
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
#ifdef ATH_SUPPORT_TDMA
if (vap->iv_caps & IEEE80211_C_TDMA) {
sc->sc_tdma = 1;
/* NB: disable tsf adjust */
sc->sc_stagbeacons = 0;
}
/*
* NB: adhoc demo mode is a pseudo mode; to the hal it's
* just ap mode.
*/
/* fall thru... */
#endif
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
case IEEE80211_M_HOSTAP:
sc->sc_opmode = HAL_M_HOSTAP;
break;
case IEEE80211_M_MONITOR:
sc->sc_opmode = HAL_M_MONITOR;
break;
default:
/* XXX should not happen */
break;
}
if (sc->sc_hastsfadd) {
/*
* Configure whether or not TSF adjust should be done.
*/
ath_hal_settsfadjust(sc->sc_ah, sc->sc_stagbeacons);
}
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
if (flags & IEEE80211_CLONE_NOBEACONS) {
/*
* Enable s/w beacon miss handling.
*/
sc->sc_swbmiss = 1;
}
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ATH_UNLOCK(sc);
/* complete setup */
ieee80211_vap_attach(vap, ath_media_change, ieee80211_media_status);
return vap;
bad2:
reclaim_address(sc, mac);
ath_hal_setbssidmask(sc->sc_ah, sc->sc_hwbssidmask);
bad:
free(avp, M_80211_VAP);
ATH_UNLOCK(sc);
return NULL;
}
static void
ath_vap_delete(struct ieee80211vap *vap)
{
struct ieee80211com *ic = vap->iv_ic;
struct ifnet *ifp = ic->ic_ifp;
struct ath_softc *sc = ifp->if_softc;
struct ath_hal *ah = sc->sc_ah;
struct ath_vap *avp = ATH_VAP(vap);
if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
/*
* Quiesce the hardware while we remove the vap. In
* particular we need to reclaim all references to
* the vap state by any frames pending on the tx queues.
*/
ath_hal_intrset(ah, 0); /* disable interrupts */
ath_draintxq(sc); /* stop xmit side */
ath_stoprecv(sc); /* stop recv side */
}
ieee80211_vap_detach(vap);
ATH_LOCK(sc);
/*
* Reclaim beacon state. Note this must be done before
* the vap instance is reclaimed as we may have a reference
* to it in the buffer for the beacon frame.
*/
if (avp->av_bcbuf != NULL) {
if (avp->av_bslot != -1) {
sc->sc_bslot[avp->av_bslot] = NULL;
sc->sc_nbcnvaps--;
}
ath_beacon_return(sc, avp->av_bcbuf);
avp->av_bcbuf = NULL;
if (sc->sc_nbcnvaps == 0) {
sc->sc_stagbeacons = 0;
if (sc->sc_hastsfadd)
ath_hal_settsfadjust(sc->sc_ah, 0);
}
/*
* Reclaim any pending mcast frames for the vap.
*/
ath_tx_draintxq(sc, &avp->av_mcastq);
ATH_TXQ_LOCK_DESTROY(&avp->av_mcastq);
}
/*
* Update bookkeeping.
*/
if (vap->iv_opmode == IEEE80211_M_STA) {
sc->sc_nstavaps--;
if (sc->sc_nstavaps == 0 && sc->sc_swbmiss)
sc->sc_swbmiss = 0;
} else if (vap->iv_opmode == IEEE80211_M_HOSTAP) {
reclaim_address(sc, vap->iv_myaddr);
ath_hal_setbssidmask(ah, sc->sc_hwbssidmask);
}
if (vap->iv_opmode != IEEE80211_M_WDS)
sc->sc_nvaps--;
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
#ifdef ATH_SUPPORT_TDMA
/* TDMA operation ceases when the last vap is destroyed */
if (sc->sc_tdma && sc->sc_nvaps == 0) {
sc->sc_tdma = 0;
sc->sc_swbmiss = 0;
}
#endif
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ATH_UNLOCK(sc);
free(avp, M_80211_VAP);
if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
/*
* Restart rx+tx machines if still running (RUNNING will
* be reset if we just destroyed the last vap).
*/
if (ath_startrecv(sc) != 0)
if_printf(ifp, "%s: unable to restart recv logic\n",
__func__);
if (sc->sc_beacons)
ath_beacon_config(sc, NULL);
ath_hal_intrset(ah, sc->sc_imask);
}
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
void
ath_suspend(struct ath_softc *sc)
{
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
struct ifnet *ifp = sc->sc_ifp;
Cleanup power handling and fix suspend/resume: o do not put the chip into full sleep in ath_stop as it gains nothing and causes many parts to hang in ath_detach because we may touch the chip during vap teardown; this may also fix issues with unloading the module o add a note in ath_detach to explain ath_hal_detach puts the chip in low power mode; this is useful to know as it means unloading the module will place a pci device in the lowest possible power state o leave an #ifdef notyet marker for powering down the chip when a device is marked down; we can't do that until we handle all the ways the driver may be entered and touch the chip o fix resume by reloading the h/w key cache as it's been clobbered (for pci) by the socket being powered off; for station mode we directly stop+init the chip and then simulate a beacon miss to get the upper layers sync'd up; for other configs we must brute force stop+start the vaps so they go through the state machine
2008-05-29 00:10:48 +00:00
struct ieee80211com *ic = ifp->if_l2com;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
DPRINTF(sc, ATH_DEBUG_ANY, "%s: if_flags %x\n",
__func__, ifp->if_flags);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Cleanup power handling and fix suspend/resume: o do not put the chip into full sleep in ath_stop as it gains nothing and causes many parts to hang in ath_detach because we may touch the chip during vap teardown; this may also fix issues with unloading the module o add a note in ath_detach to explain ath_hal_detach puts the chip in low power mode; this is useful to know as it means unloading the module will place a pci device in the lowest possible power state o leave an #ifdef notyet marker for powering down the chip when a device is marked down; we can't do that until we handle all the ways the driver may be entered and touch the chip o fix resume by reloading the h/w key cache as it's been clobbered (for pci) by the socket being powered off; for station mode we directly stop+init the chip and then simulate a beacon miss to get the upper layers sync'd up; for other configs we must brute force stop+start the vaps so they go through the state machine
2008-05-29 00:10:48 +00:00
sc->sc_resume_up = (ifp->if_flags & IFF_UP) != 0;
if (ic->ic_opmode == IEEE80211_M_STA)
ath_stop(ifp);
else
ieee80211_suspend_all(ic);
/*
* NB: don't worry about putting the chip in low power
* mode; pci will power off our socket on suspend and
* cardbus detaches the device.
*/
}
/*
* Reset the key cache since some parts do not reset the
* contents on resume. First we clear all entries, then
* re-load keys that the 802.11 layer assumes are setup
* in h/w.
*/
static void
ath_reset_keycache(struct ath_softc *sc)
{
struct ifnet *ifp = sc->sc_ifp;
struct ieee80211com *ic = ifp->if_l2com;
struct ath_hal *ah = sc->sc_ah;
int i;
for (i = 0; i < sc->sc_keymax; i++)
ath_hal_keyreset(ah, i);
ieee80211_crypto_reload_keys(ic);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
void
ath_resume(struct ath_softc *sc)
{
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
struct ifnet *ifp = sc->sc_ifp;
Cleanup power handling and fix suspend/resume: o do not put the chip into full sleep in ath_stop as it gains nothing and causes many parts to hang in ath_detach because we may touch the chip during vap teardown; this may also fix issues with unloading the module o add a note in ath_detach to explain ath_hal_detach puts the chip in low power mode; this is useful to know as it means unloading the module will place a pci device in the lowest possible power state o leave an #ifdef notyet marker for powering down the chip when a device is marked down; we can't do that until we handle all the ways the driver may be entered and touch the chip o fix resume by reloading the h/w key cache as it's been clobbered (for pci) by the socket being powered off; for station mode we directly stop+init the chip and then simulate a beacon miss to get the upper layers sync'd up; for other configs we must brute force stop+start the vaps so they go through the state machine
2008-05-29 00:10:48 +00:00
struct ieee80211com *ic = ifp->if_l2com;
struct ath_hal *ah = sc->sc_ah;
HAL_STATUS status;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
DPRINTF(sc, ATH_DEBUG_ANY, "%s: if_flags %x\n",
__func__, ifp->if_flags);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Cleanup power handling and fix suspend/resume: o do not put the chip into full sleep in ath_stop as it gains nothing and causes many parts to hang in ath_detach because we may touch the chip during vap teardown; this may also fix issues with unloading the module o add a note in ath_detach to explain ath_hal_detach puts the chip in low power mode; this is useful to know as it means unloading the module will place a pci device in the lowest possible power state o leave an #ifdef notyet marker for powering down the chip when a device is marked down; we can't do that until we handle all the ways the driver may be entered and touch the chip o fix resume by reloading the h/w key cache as it's been clobbered (for pci) by the socket being powered off; for station mode we directly stop+init the chip and then simulate a beacon miss to get the upper layers sync'd up; for other configs we must brute force stop+start the vaps so they go through the state machine
2008-05-29 00:10:48 +00:00
/*
* Must reset the chip before we reload the
* keycache as we were powered down on suspend.
*/
ath_hal_reset(ah, sc->sc_opmode, &sc->sc_curchan, AH_FALSE, &status);
ath_reset_keycache(sc);
if (sc->sc_resume_up) {
if (ic->ic_opmode == IEEE80211_M_STA) {
ath_init(sc);
ieee80211_beacon_miss(ic);
} else
ieee80211_resume_all(ic);
o remove bmisshack no longer needed with the BSSID fix in v0.9.5.2 of the hal o add monitor mode support o fix short preamble handling in beacon setup (noop) o correct resume handling
2003-08-02 06:14:15 +00:00
}
restore led state on resume Submitted by: markus
2005-06-02 03:18:55 +00:00
if (sc->sc_softled) {
Cleanup power handling and fix suspend/resume: o do not put the chip into full sleep in ath_stop as it gains nothing and causes many parts to hang in ath_detach because we may touch the chip during vap teardown; this may also fix issues with unloading the module o add a note in ath_detach to explain ath_hal_detach puts the chip in low power mode; this is useful to know as it means unloading the module will place a pci device in the lowest possible power state o leave an #ifdef notyet marker for powering down the chip when a device is marked down; we can't do that until we handle all the ways the driver may be entered and touch the chip o fix resume by reloading the h/w key cache as it's been clobbered (for pci) by the socket being powered off; for station mode we directly stop+init the chip and then simulate a beacon miss to get the upper layers sync'd up; for other configs we must brute force stop+start the vaps so they go through the state machine
2008-05-29 00:10:48 +00:00
ath_hal_gpioCfgOutput(ah, sc->sc_ledpin);
ath_hal_gpioset(ah, sc->sc_ledpin, !sc->sc_ledon);
restore led state on resume Submitted by: markus
2005-06-02 03:18:55 +00:00
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
void
ath_shutdown(struct ath_softc *sc)
{
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
struct ifnet *ifp = sc->sc_ifp;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
DPRINTF(sc, ATH_DEBUG_ANY, "%s: if_flags %x\n",
__func__, ifp->if_flags);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
ath_stop(ifp);
Cleanup power handling and fix suspend/resume: o do not put the chip into full sleep in ath_stop as it gains nothing and causes many parts to hang in ath_detach because we may touch the chip during vap teardown; this may also fix issues with unloading the module o add a note in ath_detach to explain ath_hal_detach puts the chip in low power mode; this is useful to know as it means unloading the module will place a pci device in the lowest possible power state o leave an #ifdef notyet marker for powering down the chip when a device is marked down; we can't do that until we handle all the ways the driver may be entered and touch the chip o fix resume by reloading the h/w key cache as it's been clobbered (for pci) by the socket being powered off; for station mode we directly stop+init the chip and then simulate a beacon miss to get the upper layers sync'd up; for other configs we must brute force stop+start the vaps so they go through the state machine
2008-05-29 00:10:48 +00:00
/* NB: no point powering down chip as we're about to reboot */
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* Interrupt handler. Most of the actual processing is deferred.
*/
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
void
ath_intr(void *arg)
{
struct ath_softc *sc = arg;
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
struct ifnet *ifp = sc->sc_ifp;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
struct ath_hal *ah = sc->sc_ah;
HAL_INT status;
if (sc->sc_invalid) {
/*
Close a race where ath_intr is installed and may be called before the HAL is setup: use sc_invalid to discard such entries into ath_intr. This can easily happen if the device is assigned a shared IRQ.
2003-08-13 21:29:35 +00:00
* The hardware is not ready/present, don't touch anything.
* Note this can happen early on if the IRQ is shared.
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
*/
Update with last year of work.
2004-12-08 17:34:36 +00:00
DPRINTF(sc, ATH_DEBUG_ANY, "%s: invalid; ignored\n", __func__);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
return;
}
check more quickly (and directly) if an interrupt is pending; this reduces work done in ath_intr when the irq is shared Obtained from: madwifi
2004-04-02 23:49:15 +00:00
if (!ath_hal_intrpend(ah)) /* shared irq, not for us */
return;
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
if ((ifp->if_flags & IFF_UP) == 0 ||
(ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) {
HAL_INT status;
Update with last year of work.
2004-12-08 17:34:36 +00:00
DPRINTF(sc, ATH_DEBUG_ANY, "%s: if_flags 0x%x\n",
__func__, ifp->if_flags);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
ath_hal_getisr(ah, &status); /* clear ISR */
ath_hal_intrset(ah, 0); /* disable further intr's */
return;
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* Figure out the reason(s) for the interrupt. Note
* that the hal returns a pseudo-ISR that may include
* bits we haven't explicitly enabled so we mask the
* value to insure we only process bits we requested.
*/
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
ath_hal_getisr(ah, &status); /* NB: clears ISR too */
Update with last year of work.
2004-12-08 17:34:36 +00:00
DPRINTF(sc, ATH_DEBUG_INTR, "%s: status 0x%x\n", __func__, status);
o do not filter received frames based on type or length; pass 'em all up to the 802.11 layer if they are at least IEEE80211_MIN_LEN o mask off interrupt status bits that we don't care about so we don't do the wrong thing; this fixes a problem where the beacon miss interrupt status bit is delivered together with other status bits when operating in monitor mode (we would post a beacon miss swi and then do the wrong thing)
2003-09-15 19:41:54 +00:00
status &= sc->sc_imask; /* discard unasked for bits */
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
if (status & HAL_INT_FATAL) {
sc->sc_stats.ast_hardware++;
ath_hal_intrset(ah, 0); /* disable intr's until reset */
o handle fatal errors directly instead of via the task queue o temporarily dump some h/w state for diagnosis; this will be removed once some issues are resolved MFC after: 2 weeks
2006-02-15 18:23:03 +00:00
ath_fatal_proc(sc, 0);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
} else {
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (status & HAL_INT_SWBA) {
/*
* Software beacon alert--time to send a beacon.
* Handle beacon transmission directly; deferring
* this is too slow to meet timing constraints
* under load.
*/
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
#ifdef ATH_SUPPORT_TDMA
if (sc->sc_tdma) {
if (sc->sc_tdmaswba == 0) {
struct ieee80211com *ic = ifp->if_l2com;
struct ieee80211vap *vap =
TAILQ_FIRST(&ic->ic_vaps);
ath_tdma_beacon_send(sc, vap);
sc->sc_tdmaswba =
vap->iv_tdma->tdma_bintval;
} else
sc->sc_tdmaswba--;
} else
#endif
ath_beacon_proc(sc, 0);
Update with last year of work.
2004-12-08 17:34:36 +00:00
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
if (status & HAL_INT_RXEOL) {
/*
* NB: the hardware should re-read the link when
* RXE bit is written, but it doesn't work at
* least on older hardware revs.
*/
sc->sc_stats.ast_rxeol++;
sc->sc_rxlink = NULL;
}
if (status & HAL_INT_TXURN) {
sc->sc_stats.ast_txurn++;
/* bump tx trigger level */
ath_hal_updatetxtriglevel(ah, AH_TRUE);
}
if (status & HAL_INT_RX)
use a private task queue thread MFC after: 2 weeks
2006-02-09 21:48:51 +00:00
taskqueue_enqueue(sc->sc_tq, &sc->sc_rxtask);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
if (status & HAL_INT_TX)
use a private task queue thread MFC after: 2 weeks
2006-02-09 21:48:51 +00:00
taskqueue_enqueue(sc->sc_tq, &sc->sc_txtask);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
if (status & HAL_INT_BMISS) {
sc->sc_stats.ast_bmiss++;
use a private task queue thread MFC after: 2 weeks
2006-02-09 21:48:51 +00:00
taskqueue_enqueue(sc->sc_tq, &sc->sc_bmisstask);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (status & HAL_INT_MIB) {
sc->sc_stats.ast_mib++;
/*
* Disable interrupts until we service the MIB
* interrupt; otherwise it will continue to fire.
*/
ath_hal_intrset(ah, 0);
/*
* Let the hal handle the event. We assume it will
* clear whatever condition caused the interrupt.
*/
move hal statistics to softc; the per-node stats are overkill, they're only used when operating in station mode MFC after: 2 weeks
2006-02-09 21:23:44 +00:00
ath_hal_mibevent(ah, &sc->sc_halstats);
Update with last year of work.
2004-12-08 17:34:36 +00:00
ath_hal_intrset(ah, sc->sc_imask);
}
nuke special handling of RXORN interrupt; the hal marks the FATAL bit in the interrupt status when RXORN is hit and the chip requires a reset so our special handling was causing useless resets
2008-11-24 01:31:10 +00:00
if (status & HAL_INT_RXORN) {
/* NB: hal marks HAL_INT_FATAL when RXORN is fatal */
sc->sc_stats.ast_rxorn++;
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
}
static void
ath_fatal_proc(void *arg, int pending)
{
struct ath_softc *sc = arg;
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
struct ifnet *ifp = sc->sc_ifp;
o handle fatal errors directly instead of via the task queue o temporarily dump some h/w state for diagnosis; this will be removed once some issues are resolved MFC after: 2 weeks
2006-02-15 18:23:03 +00:00
u_int32_t *state;
u_int32_t len;
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
void *sp;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
if_printf(ifp, "hardware error; resetting\n");
o handle fatal errors directly instead of via the task queue o temporarily dump some h/w state for diagnosis; this will be removed once some issues are resolved MFC after: 2 weeks
2006-02-15 18:23:03 +00:00
/*
* Fatal errors are unrecoverable. Typically these
* are caused by DMA errors. Collect h/w state from
* the hal so we can diagnose what's going on.
*/
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
if (ath_hal_getfatalstate(sc->sc_ah, &sp, &len)) {
o handle fatal errors directly instead of via the task queue o temporarily dump some h/w state for diagnosis; this will be removed once some issues are resolved MFC after: 2 weeks
2006-02-15 18:23:03 +00:00
KASSERT(len >= 6*sizeof(u_int32_t), ("len %u bytes", len));
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
state = sp;
o handle fatal errors directly instead of via the task queue o temporarily dump some h/w state for diagnosis; this will be removed once some issues are resolved MFC after: 2 weeks
2006-02-15 18:23:03 +00:00
if_printf(ifp, "0x%08x 0x%08x 0x%08x, 0x%08x 0x%08x 0x%08x\n",
state[0], state[1] , state[2], state[3],
state[4], state[5]);
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
ath_reset(ifp);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
static void
ath_bmiss_vap(struct ieee80211vap *vap)
{
sync w/ p4 branch
2008-11-30 18:56:41 +00:00
struct ifnet *ifp = vap->iv_ic->ic_ifp;
struct ath_softc *sc = ifp->if_softc;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
u_int64_t lastrx = sc->sc_lastrx;
u_int64_t tsf = ath_hal_gettsf64(sc->sc_ah);
u_int bmisstimeout =
vap->iv_bmissthreshold * vap->iv_bss->ni_intval * 1024;
DPRINTF(sc, ATH_DEBUG_BEACON,
"%s: tsf %llu lastrx %lld (%llu) bmiss %u\n",
__func__, (unsigned long long) tsf,
(unsigned long long)(tsf - lastrx),
(unsigned long long) lastrx, bmisstimeout);
/*
* Workaround phantom bmiss interrupts by sanity-checking
* the time of our last rx'd frame. If it is within the
* beacon miss interval then ignore the interrupt. If it's
* truly a bmiss we'll get another interrupt soon and that'll
* be dispatched up for processing.
*/
if (tsf - lastrx > bmisstimeout)
ATH_VAP(vap)->av_bmiss(vap);
else
sc->sc_stats.ast_bmiss_phantom++;
}
some of the 11n parts can hang under certain conditions without necessary workarounds, add code to detect these hangs and distinguish them from other events; note this code is only invoked for anomalous conditions and (at the moment) is a noop because the hang detection code is in a new hal that's coming shortly
2008-11-30 18:34:27 +00:00
static int
ath_hal_gethangstate(struct ath_hal *ah, uint32_t mask, uint32_t *hangs)
{
uint32_t rsize;
void *sp;
if (!ath_hal_getdiagstate(ah, 32, &mask, sizeof(&mask), &sp, &rsize))
return 0;
KASSERT(rsize == sizeof(uint32_t), ("resultsize %u", rsize));
*hangs = *(uint32_t *)sp;
return 1;
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
static void
ath_bmiss_proc(void *arg, int pending)
{
struct ath_softc *sc = arg;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
struct ifnet *ifp = sc->sc_ifp;
some of the 11n parts can hang under certain conditions without necessary workarounds, add code to detect these hangs and distinguish them from other events; note this code is only invoked for anomalous conditions and (at the moment) is a noop because the hang detection code is in a new hal that's coming shortly
2008-11-30 18:34:27 +00:00
uint32_t hangs;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
DPRINTF(sc, ATH_DEBUG_ANY, "%s: pending %u\n", __func__, pending);
some of the 11n parts can hang under certain conditions without necessary workarounds, add code to detect these hangs and distinguish them from other events; note this code is only invoked for anomalous conditions and (at the moment) is a noop because the hang detection code is in a new hal that's coming shortly
2008-11-30 18:34:27 +00:00
if (ath_hal_gethangstate(sc->sc_ah, 0xff, &hangs) && hangs != 0) {
if_printf(ifp, "bb hang detected (0x%x), reseting\n", hangs);
ath_reset(ifp);
} else
ieee80211_beacon_miss(ifp->if_l2com);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Add initial support for 900MHz cards like the Ubiquiti SR9: o eliminate assumptions that half/quarter rate channels on exist in 11a o handle frequency mapping between hal and net80211; hal gives us freq's in the range 2422..2437 that we remap MFC after: 1 month
2007-01-15 01:15:57 +00:00
/*
* Convert net80211 channel to a HAL channel with the flags
* constrained to reflect the current operating mode and
* the frequency possibly mapped for GSM channels.
*/
static void
add hack to deal with Ubiquiti XR9 cards, they have a different mapping between 900MHz and 2.4GHz frequencies than SR9 cards; they are distinguished by different country codes
2008-10-27 18:00:43 +00:00
ath_mapchan(const struct ieee80211com *ic,
HAL_CHANNEL *hc, const struct ieee80211_channel *chan)
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
{
Update with last year of work.
2004-12-08 17:34:36 +00:00
#define N(a) (sizeof(a) / sizeof(a[0]))
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
static const u_int modeflags[IEEE80211_MODE_MAX] = {
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
0, /* IEEE80211_MODE_AUTO */
CHANNEL_A, /* IEEE80211_MODE_11A */
CHANNEL_B, /* IEEE80211_MODE_11B */
CHANNEL_PUREG, /* IEEE80211_MODE_11G */
Update with last year of work.
2004-12-08 17:34:36 +00:00
0, /* IEEE80211_MODE_FH */
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
CHANNEL_108A, /* IEEE80211_MODE_TURBO_A */
CHANNEL_108G, /* IEEE80211_MODE_TURBO_G */
CHANNEL_ST, /* IEEE80211_MODE_STURBO_A */
CHANNEL_A, /* IEEE80211_MODE_11NA */
CHANNEL_PUREG, /* IEEE80211_MODE_11NG */
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
};
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
enum ieee80211_phymode mode = ieee80211_chan2mode(chan);
Update with last year of work.
2004-12-08 17:34:36 +00:00
KASSERT(mode < N(modeflags), ("unexpected phy mode %u", mode));
KASSERT(modeflags[mode] != 0, ("mode %u undefined", mode));
Add initial support for 900MHz cards like the Ubiquiti SR9: o eliminate assumptions that half/quarter rate channels on exist in 11a o handle frequency mapping between hal and net80211; hal gives us freq's in the range 2422..2437 that we remap MFC after: 1 month
2007-01-15 01:15:57 +00:00
hc->channelFlags = modeflags[mode];
Add half/quarter rate 11a channel support: o change handling of regdomain-related mib knobs so they can be set post-attach: regdomain, countrycode, outdoor, and xchanmode; the hal will not permit changing the regdomain but we expose it for now o on regdomain/countrycode change recalculate the channel list and push it to the net80211 layer (NB: looks to need more tweaking) o setup rate tables for half/quarter rate channels o honor half/quarter rate channel configs when changing channels o honor half/quarter rate channel configs when setting the slot time o use hack/nonstandard channel numbering scheme for the public safety band to avoid overlapping 2.4G channels on dual-band cards o remove setup of ic_sup_rates; the net80211 layer can do this for us and it simplifies handling of half/quarter rate channels Tested only in Public Safety Band with cards that have RF5112.
2006-12-27 19:07:09 +00:00
if (IEEE80211_IS_CHAN_HALF(chan))
Add initial support for 900MHz cards like the Ubiquiti SR9: o eliminate assumptions that half/quarter rate channels on exist in 11a o handle frequency mapping between hal and net80211; hal gives us freq's in the range 2422..2437 that we remap MFC after: 1 month
2007-01-15 01:15:57 +00:00
hc->channelFlags |= CHANNEL_HALF;
Add half/quarter rate 11a channel support: o change handling of regdomain-related mib knobs so they can be set post-attach: regdomain, countrycode, outdoor, and xchanmode; the hal will not permit changing the regdomain but we expose it for now o on regdomain/countrycode change recalculate the channel list and push it to the net80211 layer (NB: looks to need more tweaking) o setup rate tables for half/quarter rate channels o honor half/quarter rate channel configs when changing channels o honor half/quarter rate channel configs when setting the slot time o use hack/nonstandard channel numbering scheme for the public safety band to avoid overlapping 2.4G channels on dual-band cards o remove setup of ic_sup_rates; the net80211 layer can do this for us and it simplifies handling of half/quarter rate channels Tested only in Public Safety Band with cards that have RF5112.
2006-12-27 19:07:09 +00:00
if (IEEE80211_IS_CHAN_QUARTER(chan))
Add initial support for 900MHz cards like the Ubiquiti SR9: o eliminate assumptions that half/quarter rate channels on exist in 11a o handle frequency mapping between hal and net80211; hal gives us freq's in the range 2422..2437 that we remap MFC after: 1 month
2007-01-15 01:15:57 +00:00
hc->channelFlags |= CHANNEL_QUARTER;
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
if (IEEE80211_IS_CHAN_HT20(chan))
hc->channelFlags |= CHANNEL_HT20;
if (IEEE80211_IS_CHAN_HT40D(chan))
hc->channelFlags |= CHANNEL_HT40MINUS;
if (IEEE80211_IS_CHAN_HT40U(chan))
hc->channelFlags |= CHANNEL_HT40PLUS;
Add initial support for 900MHz cards like the Ubiquiti SR9: o eliminate assumptions that half/quarter rate channels on exist in 11a o handle frequency mapping between hal and net80211; hal gives us freq's in the range 2422..2437 that we remap MFC after: 1 month
2007-01-15 01:15:57 +00:00
add hack to deal with Ubiquiti XR9 cards, they have a different mapping between 900MHz and 2.4GHz frequencies than SR9 cards; they are distinguished by different country codes
2008-10-27 18:00:43 +00:00
if (IEEE80211_IS_CHAN_GSM(chan)) {
if (ic->ic_regdomain.country == CTRY_XR9)
add frequency mapping for the Zcomax GZ-901
2008-11-30 18:27:10 +00:00
hc->channel = 1520 + chan->ic_freq;
else if (ic->ic_regdomain.country == CTRY_GZ901)
hc->channel = 1544 + chan->ic_freq;
add hack to deal with Ubiquiti XR9 cards, they have a different mapping between 900MHz and 2.4GHz frequencies than SR9 cards; they are distinguished by different country codes
2008-10-27 18:00:43 +00:00
else
add frequency mapping for the Zcomax GZ-901
2008-11-30 18:27:10 +00:00
hc->channel = 3344 - chan->ic_freq;
add hack to deal with Ubiquiti XR9 cards, they have a different mapping between 900MHz and 2.4GHz frequencies than SR9 cards; they are distinguished by different country codes
2008-10-27 18:00:43 +00:00
} else
hc->channel = chan->ic_freq;
Update with last year of work.
2004-12-08 17:34:36 +00:00
#undef N
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
/*
* Handle TKIP MIC setup to deal hardware that doesn't do MIC
* calcs together with WME. If necessary disable the crypto
* hardware and mark the 802.11 state so keys will be setup
* with the MIC work done in software.
*/
static void
ath_settkipmic(struct ath_softc *sc)
{
struct ifnet *ifp = sc->sc_ifp;
struct ieee80211com *ic = ifp->if_l2com;
if ((ic->ic_cryptocaps & IEEE80211_CRYPTO_TKIP) && !sc->sc_wmetkipmic) {
if (ic->ic_flags & IEEE80211_F_WME) {
ath_hal_settkipmic(sc->sc_ah, AH_FALSE);
ic->ic_cryptocaps &= ~IEEE80211_CRYPTO_TKIPMIC;
} else {
ath_hal_settkipmic(sc->sc_ah, AH_TRUE);
ic->ic_cryptocaps |= IEEE80211_CRYPTO_TKIPMIC;
}
}
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
static void
ath_init(void *arg)
{
struct ath_softc *sc = (struct ath_softc *) arg;
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
struct ifnet *ifp = sc->sc_ifp;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
struct ieee80211com *ic = ifp->if_l2com;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
struct ath_hal *ah = sc->sc_ah;
HAL_STATUS status;
Update with last year of work.
2004-12-08 17:34:36 +00:00
DPRINTF(sc, ATH_DEBUG_ANY, "%s: if_flags 0x%x\n",
__func__, ifp->if_flags);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
o convert mutex calls to #defines for portability, etc. o destroy mutex's on detach (was missing)
2003-10-14 22:51:45 +00:00
ATH_LOCK(sc);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
/*
* Stop anything previously setup. This is safe
* whether this is the first time through or not.
*/
Update with last year of work.
2004-12-08 17:34:36 +00:00
ath_stop_locked(ifp);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
/*
* The basic interface to setting the hardware in a good
* state is ``reset''. On return the hardware is known to
* be powered up and with interrupts disabled. This must
* be followed by initialization of the appropriate bits
* and then setup of the interrupt mask.
*/
add hack to deal with Ubiquiti XR9 cards, they have a different mapping between 900MHz and 2.4GHz frequencies than SR9 cards; they are distinguished by different country codes
2008-10-27 18:00:43 +00:00
ath_mapchan(ic, &sc->sc_curchan, ic->ic_curchan);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ath_settkipmic(sc);
add adhoc demo mode support MFC after: 2 weeks
2006-02-09 21:42:53 +00:00
if (!ath_hal_reset(ah, sc->sc_opmode, &sc->sc_curchan, AH_FALSE, &status)) {
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
if_printf(ifp, "unable to reset hardware; hal status %u\n",
status);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ATH_UNLOCK(sc);
return;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ath_chan_change(sc, ic->ic_curchan);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
o fix setup of sc_diversity; the hal does not give us reliable status after attach, only after a reset o when setting diversity via the sysctl don't update sc_diversity until we know the hal requested worked o while here eliminate sc_hasdiversity and sc_hastpc; just query the hal each time since these are the only places we need to know MFC after: 3 days
2005-07-24 05:11:39 +00:00
/*
* Likewise this is set during reset so update
* state cached in the driver.
*/
sc->sc_diversity = ath_hal_getdiversity(ah);
New periodic calibration scheme needed for 11n parts that have multiple algorithms and potentially collect multiple samples. Instead of a single calibration interval we now have short and long intervals; the long interval roughly corresponds to the previous single interval. The short interval is used to speedup collection of samples and happens much quicker. We make calls using the short interval until we're told the calibration work is complete at which point we fallback to the long interval. In addition there is a much longer reset interval used to flush all calibration state and cause everthing to start anew. With these changes you can also disable calibration entirely by setting the long interval to zero.
2008-12-07 19:26:34 +00:00
sc->sc_lastlongcal = 0;
sc->sc_resetcal = 1;
sc->sc_lastcalreset = 0;
Update with last year of work.
2004-12-08 17:34:36 +00:00
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
/*
* Setup the hardware after reset: the key cache
* is filled as needed and the receive engine is
* set going. Frame transmit is handled entirely
* in the frame output path; there's nothing to do
* here except setup the interrupt mask.
*/
if (ath_startrecv(sc) != 0) {
if_printf(ifp, "unable to start recv logic\n");
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ATH_UNLOCK(sc);
return;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
/*
* Enable interrupts.
*/
sc->sc_imask = HAL_INT_RX | HAL_INT_TX
| HAL_INT_RXEOL | HAL_INT_RXORN
| HAL_INT_FATAL | HAL_INT_GLOBAL;
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* Enable MIB interrupts when there are hardware phy counters.
* Note we only do this (at the moment) for station mode.
*/
if (sc->sc_needmib && ic->ic_opmode == IEEE80211_M_STA)
sc->sc_imask |= HAL_INT_MIB;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and IFF_DRV_RUNNING, as well as the move from ifnet.if_flags to ifnet.if_drv_flags. Device drivers are now responsible for synchronizing access to these flags, as they are in if_drv_flags. This helps prevent races between the network stack and device driver in maintaining the interface flags field. Many __FreeBSD__ and __FreeBSD_version checks maintained and continued; some less so. Reviewed by: pjd, bz MFC after: 7 days
2005-08-09 10:20:02 +00:00
ifp->if_drv_flags |= IFF_DRV_RUNNING;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ath_hal_intrset(ah, sc->sc_imask);
ATH_UNLOCK(sc);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
add tx99 hooks MFC after: 2 weeks
2006-02-09 21:28:11 +00:00
#ifdef ATH_TX99_DIAG
if (sc->sc_tx99 != NULL)
sc->sc_tx99->start(sc->sc_tx99);
else
#endif
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ieee80211_start_all(ic); /* start all vap's */
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
static void
Update with last year of work.
2004-12-08 17:34:36 +00:00
ath_stop_locked(struct ifnet *ifp)
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
{
struct ath_softc *sc = ifp->if_softc;
struct ath_hal *ah = sc->sc_ah;
Update with last year of work.
2004-12-08 17:34:36 +00:00
DPRINTF(sc, ATH_DEBUG_ANY, "%s: invalid %u if_flags 0x%x\n",
__func__, sc->sc_invalid, ifp->if_flags);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
ATH_LOCK_ASSERT(sc);
Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and IFF_DRV_RUNNING, as well as the move from ifnet.if_flags to ifnet.if_drv_flags. Device drivers are now responsible for synchronizing access to these flags, as they are in if_drv_flags. This helps prevent races between the network stack and device driver in maintaining the interface flags field. Many __FreeBSD__ and __FreeBSD_version checks maintained and continued; some less so. Reviewed by: pjd, bz MFC after: 7 days
2005-08-09 10:20:02 +00:00
if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
/*
* Shutdown the hardware and driver:
Update with last year of work.
2004-12-08 17:34:36 +00:00
* reset 802.11 state machine
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
* turn off timers
Update with last year of work.
2004-12-08 17:34:36 +00:00
* disable interrupts
* turn off the radio
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
* clear transmit machinery
* clear receive machinery
* drain and release tx queues
* reclaim beacon resources
* power down hardware
*
* Note that some of this work is not possible if the
* hardware is gone (invalid).
*/
add tx99 hooks MFC after: 2 weeks
2006-02-09 21:28:11 +00:00
#ifdef ATH_TX99_DIAG
if (sc->sc_tx99 != NULL)
sc->sc_tx99->stop(sc->sc_tx99);
#endif
Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and IFF_DRV_RUNNING, as well as the move from ifnet.if_flags to ifnet.if_drv_flags. Device drivers are now responsible for synchronizing access to these flags, as they are in if_drv_flags. This helps prevent races between the network stack and device driver in maintaining the interface flags field. Many __FreeBSD__ and __FreeBSD_version checks maintained and continued; some less so. Reviewed by: pjd, bz MFC after: 7 days
2005-08-09 10:20:02 +00:00
ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
ifp->if_timer = 0;
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (!sc->sc_invalid) {
better led blinking
2005-01-18 19:03:04 +00:00
if (sc->sc_softled) {
callout_stop(&sc->sc_ledtimer);
ath_hal_gpioset(ah, sc->sc_ledpin,
!sc->sc_ledon);
sc->sc_blinking = 0;
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
ath_hal_intrset(ah, 0);
Update with last year of work.
2004-12-08 17:34:36 +00:00
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
ath_draintxq(sc);
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (!sc->sc_invalid) {
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
ath_stoprecv(sc);
Update with last year of work.
2004-12-08 17:34:36 +00:00
ath_hal_phydisable(ah);
} else
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
sc->sc_rxlink = NULL;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ath_beacon_free(sc); /* XXX not needed */
Update with last year of work.
2004-12-08 17:34:36 +00:00
}
}
static void
ath_stop(struct ifnet *ifp)
{
struct ath_softc *sc = ifp->if_softc;
ATH_LOCK(sc);
ath_stop_locked(ifp);
o convert mutex calls to #defines for portability, etc. o destroy mutex's on detach (was missing)
2003-10-14 22:51:45 +00:00
ATH_UNLOCK(sc);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
/*
* Reset the hardware w/o losing operational state. This is
* basically a more efficient way of doing ath_stop, ath_init,
* followed by state transitions to the current 802.11
Update with last year of work.
2004-12-08 17:34:36 +00:00
* operational state. Used to recover from various errors and
* to reset or reload hardware state.
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
*/
Update with last year of work.
2004-12-08 17:34:36 +00:00
static int
ath_reset(struct ifnet *ifp)
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
{
Update with last year of work.
2004-12-08 17:34:36 +00:00
struct ath_softc *sc = ifp->if_softc;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
struct ieee80211com *ic = ifp->if_l2com;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
struct ath_hal *ah = sc->sc_ah;
HAL_STATUS status;
/*
* Convert to a HAL channel description with the flags
* constrained to reflect the current operating mode.
*/
add hack to deal with Ubiquiti XR9 cards, they have a different mapping between 900MHz and 2.4GHz frequencies than SR9 cards; they are distinguished by different country codes
2008-10-27 18:00:43 +00:00
ath_mapchan(ic, &sc->sc_curchan, ic->ic_curchan);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
ath_hal_intrset(ah, 0); /* disable interrupts */
ath_draintxq(sc); /* stop xmit side */
ath_stoprecv(sc); /* stop recv side */
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ath_settkipmic(sc); /* configure TKIP MIC handling */
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
/* NB: indicate channel change so we do a full reset */
add adhoc demo mode support MFC after: 2 weeks
2006-02-09 21:42:53 +00:00
if (!ath_hal_reset(ah, sc->sc_opmode, &sc->sc_curchan, AH_TRUE, &status))
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
if_printf(ifp, "%s: unable to reset hardware; hal status %u\n",
__func__, status);
o fix setup of sc_diversity; the hal does not give us reliable status after attach, only after a reset o when setting diversity via the sysctl don't update sc_diversity until we know the hal requested worked o while here eliminate sc_hasdiversity and sc_hastpc; just query the hal each time since these are the only places we need to know MFC after: 3 days
2005-07-24 05:11:39 +00:00
sc->sc_diversity = ath_hal_getdiversity(ah);
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
if (ath_startrecv(sc) != 0) /* restart recv */
if_printf(ifp, "%s: unable to start recv logic\n", __func__);
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* We may be doing a reset in response to an ioctl
* that changes the channel so update any state that
* might change as a result.
*/
Add initial support for 900MHz cards like the Ubiquiti SR9: o eliminate assumptions that half/quarter rate channels on exist in 11a o handle frequency mapping between hal and net80211; hal gives us freq's in the range 2422..2437 that we remap MFC after: 1 month
2007-01-15 01:15:57 +00:00
ath_chan_change(sc, ic->ic_curchan);
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
if (sc->sc_beacons) {
#ifdef ATH_SUPPORT_TDMA
if (sc->sc_tdma)
ath_tdma_config(sc, NULL);
else
#endif
ath_beacon_config(sc, NULL); /* restart beacons */
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
ath_hal_intrset(ah, sc->sc_imask);
ath_start(ifp); /* restart xmit */
return 0;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
static int
ath_reset_vap(struct ieee80211vap *vap, u_long cmd)
{
intercept IEEE80211_IOC_TXPOWER and service tx power changes immediately
2008-10-27 17:12:41 +00:00
struct ieee80211com *ic = vap->iv_ic;
struct ifnet *ifp = ic->ic_ifp;
struct ath_softc *sc = ifp->if_softc;
struct ath_hal *ah = sc->sc_ah;
switch (cmd) {
case IEEE80211_IOC_TXPOWER:
/*
* If per-packet TPC is enabled, then we have nothing
* to do; otherwise we need to force the global limit.
* All this can happen directly; no need to reset.
*/
if (!ath_hal_gettpc(ah))
ath_hal_settxpowlimit(ah, ic->ic_txpowlimit);
return 0;
}
return ath_reset(ifp);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
}
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
static int
ath_ff_always(struct ath_txq *txq, struct ath_buf *bf)
{
return 0;
}
#if 0
static int
ath_ff_ageflushtestdone(struct ath_txq *txq, struct ath_buf *bf)
{
return (txq->axq_curage - bf->bf_age) < ATH_FF_STAGEMAX;
}
#endif
/*
* Flush FF staging queue.
*/
static void
ath_ff_stageq_flush(struct ath_softc *sc, struct ath_txq *txq,
int (*ath_ff_flushdonetest)(struct ath_txq *txq, struct ath_buf *bf))
{
struct ath_buf *bf;
struct ieee80211_node *ni;
int pktlen, pri;
for (;;) {
ATH_TXQ_LOCK(txq);
/*
* Go from the back (oldest) to front so we can
* stop early based on the age of the entry.
*/
bf = TAILQ_LAST(&txq->axq_stageq, axq_headtype);
if (bf == NULL || ath_ff_flushdonetest(txq, bf)) {
ATH_TXQ_UNLOCK(txq);
break;
}
ni = bf->bf_node;
pri = M_WME_GETAC(bf->bf_m);
KASSERT(ATH_NODE(ni)->an_ff_buf[pri],
("no bf on staging queue %p", bf));
ATH_NODE(ni)->an_ff_buf[pri] = NULL;
TAILQ_REMOVE(&txq->axq_stageq, bf, bf_stagelist);
ATH_TXQ_UNLOCK(txq);
DPRINTF(sc, ATH_DEBUG_FF, "%s: flush frame, age %u\n",
__func__, bf->bf_age);
sc->sc_stats.ast_ff_flush++;
/* encap and xmit */
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
bf->bf_m = ieee80211_encap(ni, bf->bf_m);
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
if (bf->bf_m == NULL) {
DPRINTF(sc, ATH_DEBUG_XMIT | ATH_DEBUG_FF,
"%s: discard, encapsulation failure\n",
__func__);
sc->sc_stats.ast_tx_encap++;
goto bad;
}
pktlen = bf->bf_m->m_pkthdr.len; /* NB: don't reference below */
if (ath_tx_start(sc, ni, bf, bf->bf_m) == 0) {
#if 0 /*XXX*/
ifp->if_opackets++;
#endif
continue;
}
bad:
if (ni != NULL)
ieee80211_free_node(ni);
bf->bf_node = NULL;
if (bf->bf_m != NULL) {
m_freem(bf->bf_m);
bf->bf_m = NULL;
}
ATH_TXBUF_LOCK(sc);
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
STAILQ_INSERT_HEAD(&sc->sc_txbuf, bf, bf_list);
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
ATH_TXBUF_UNLOCK(sc);
}
}
static __inline u_int32_t
ath_ff_approx_txtime(struct ath_softc *sc, struct ath_node *an, struct mbuf *m)
{
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
struct ieee80211com *ic = sc->sc_ifp->if_l2com;
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
u_int32_t framelen;
struct ath_buf *bf;
/*
* Approximate the frame length to be transmitted. A swag to add
* the following maximal values to the skb payload:
* - 32: 802.11 encap + CRC
* - 24: encryption overhead (if wep bit)
* - 4 + 6: fast-frame header and padding
* - 16: 2 LLC FF tunnel headers
* - 14: 1 802.3 FF tunnel header (skb already accounts for 2nd)
*/
framelen = m->m_pkthdr.len + 32 + 4 + 6 + 16 + 14;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if (ic->ic_flags & IEEE80211_F_PRIVACY)
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
framelen += 24;
bf = an->an_ff_buf[M_WME_GETAC(m)];
if (bf != NULL)
framelen += bf->bf_m->m_pkthdr.len;
return ath_hal_computetxtime(sc->sc_ah, sc->sc_currates, framelen,
sc->sc_lastdatarix, AH_FALSE);
}
/*
* Determine if a data frame may be aggregated via ff tunnelling.
* Note the caller is responsible for checking if the destination
* supports fast frames.
*
* NB: allowing EAPOL frames to be aggregated with other unicast traffic.
* Do 802.1x EAPOL frames proceed in the clear? Then they couldn't
* be aggregated with other types of frames when encryption is on?
*
* NB: assumes lock on an_ff_buf effectively held by txq lock mechanism.
*/
static __inline int
ath_ff_can_aggregate(struct ath_softc *sc,
struct ath_node *an, struct mbuf *m, int *flushq)
{
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
struct ieee80211com *ic = sc->sc_ifp->if_l2com;
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
struct ath_txq *txq;
u_int32_t txoplimit;
u_int pri;
*flushq = 0;
/*
* If there is no frame to combine with and the txq has
* fewer frames than the minimum required; then do not
* attempt to aggregate this frame.
*/
pri = M_WME_GETAC(m);
txq = sc->sc_ac2q[pri];
if (an->an_ff_buf[pri] == NULL && txq->axq_depth < sc->sc_fftxqmin)
return 0;
/*
* When not in station mode never aggregate a multicast
* frame; this insures, for example, that a combined frame
* does not require multiple encryption keys when using
* 802.1x/WPA.
*/
if (ic->ic_opmode != IEEE80211_M_STA &&
ETHER_IS_MULTICAST(mtod(m, struct ether_header *)->ether_dhost))
return 0;
/*
* Consult the max bursting interval to insure a combined
* frame fits within the TxOp window.
*/
txoplimit = IEEE80211_TXOP_TO_US(
ic->ic_wme.wme_chanParams.cap_wmeParams[pri].wmep_txopLimit);
if (txoplimit != 0 && ath_ff_approx_txtime(sc, an, m) > txoplimit) {
DPRINTF(sc, ATH_DEBUG_XMIT | ATH_DEBUG_FF,
"%s: FF TxOp violation\n", __func__);
if (an->an_ff_buf[pri] != NULL)
*flushq = 1;
return 0;
}
return 1; /* try to aggregate */
}
/*
* Check if the supplied frame can be partnered with an existing
* or pending frame. Return a reference to any frame that should be
* sent on return; otherwise return NULL.
*/
static struct mbuf *
ath_ff_check(struct ath_softc *sc, struct ath_txq *txq,
struct ath_buf *bf, struct mbuf *m, struct ieee80211_node *ni)
{
struct ath_node *an = ATH_NODE(ni);
struct ath_buf *bfstaged;
int ff_flush, pri;
/*
* Check if the supplied frame can be aggregated.
*
* NB: we use the txq lock to protect references to
* an->an_ff_txbuf in ath_ff_can_aggregate().
*/
ATH_TXQ_LOCK(txq);
pri = M_WME_GETAC(m);
if (ath_ff_can_aggregate(sc, an, m, &ff_flush)) {
struct ath_buf *bfstaged = an->an_ff_buf[pri];
if (bfstaged != NULL) {
/*
* A frame is available for partnering; remove
* it, chain it to this one, and encapsulate.
*/
an->an_ff_buf[pri] = NULL;
TAILQ_REMOVE(&txq->axq_stageq, bfstaged, bf_stagelist);
ATH_TXQ_UNLOCK(txq);
/*
* Chain mbufs and add FF magic.
*/
DPRINTF(sc, ATH_DEBUG_FF,
"[%s] aggregate fast-frame, age %u\n",
ether_sprintf(ni->ni_macaddr), txq->axq_curage);
m->m_nextpkt = NULL;
bfstaged->bf_m->m_nextpkt = m;
m = bfstaged->bf_m;
bfstaged->bf_m = NULL;
m->m_flags |= M_FF;
/*
* Release the node reference held while
* the packet sat on an_ff_buf[]
*/
bfstaged->bf_node = NULL;
ieee80211_free_node(ni);
/*
* Return bfstaged to the free list.
*/
ATH_TXBUF_LOCK(sc);
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
STAILQ_INSERT_HEAD(&sc->sc_txbuf, bfstaged, bf_list);
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
ATH_TXBUF_UNLOCK(sc);
return m; /* ready to go */
} else {
/*
* No frame available, queue this frame to wait
* for a partner. Note that we hold the buffer
* and a reference to the node; we need the
* buffer in particular so we're certain we
* can flush the frame at a later time.
*/
DPRINTF(sc, ATH_DEBUG_FF,
"[%s] stage fast-frame, age %u\n",
ether_sprintf(ni->ni_macaddr), txq->axq_curage);
bf->bf_m = m;
bf->bf_node = ni; /* NB: held reference */
bf->bf_age = txq->axq_curage;
an->an_ff_buf[pri] = bf;
TAILQ_INSERT_HEAD(&txq->axq_stageq, bf, bf_stagelist);
ATH_TXQ_UNLOCK(txq);
return NULL; /* consumed */
}
}
/*
* Frame could not be aggregated, it needs to be returned
* to the caller for immediate transmission. In addition
* we check if we should first flush a frame from the
* staging queue before sending this one.
*
* NB: ath_ff_can_aggregate only marks ff_flush if a frame
* is present to flush.
*/
if (ff_flush) {
int pktlen;
bfstaged = an->an_ff_buf[pri];
an->an_ff_buf[pri] = NULL;
TAILQ_REMOVE(&txq->axq_stageq, bfstaged, bf_stagelist);
ATH_TXQ_UNLOCK(txq);
DPRINTF(sc, ATH_DEBUG_FF, "[%s] flush staged frame\n",
ether_sprintf(an->an_node.ni_macaddr));
/* encap and xmit */
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
bfstaged->bf_m = ieee80211_encap(ni, bfstaged->bf_m);
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
if (bfstaged->bf_m == NULL) {
DPRINTF(sc, ATH_DEBUG_XMIT | ATH_DEBUG_FF,
"%s: discard, encap failure\n", __func__);
sc->sc_stats.ast_tx_encap++;
goto ff_flushbad;
}
pktlen = bfstaged->bf_m->m_pkthdr.len;
if (ath_tx_start(sc, ni, bfstaged, bfstaged->bf_m)) {
DPRINTF(sc, ATH_DEBUG_XMIT,
"%s: discard, xmit failure\n", __func__);
ff_flushbad:
/*
* Unable to transmit frame that was on the staging
* queue. Reclaim the node reference and other
* resources.
*/
if (ni != NULL)
ieee80211_free_node(ni);
bfstaged->bf_node = NULL;
if (bfstaged->bf_m != NULL) {
m_freem(bfstaged->bf_m);
bfstaged->bf_m = NULL;
}
ATH_TXBUF_LOCK(sc);
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
STAILQ_INSERT_HEAD(&sc->sc_txbuf, bfstaged, bf_list);
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
ATH_TXBUF_UNLOCK(sc);
} else {
#if 0
ifp->if_opackets++;
#endif
}
} else {
if (an->an_ff_buf[pri] != NULL) {
/*
* XXX: out-of-order condition only occurs for AP
* mode and multicast. There may be no valid way
* to get this condition.
*/
DPRINTF(sc, ATH_DEBUG_FF, "[%s] out-of-order frame\n",
ether_sprintf(an->an_node.ni_macaddr));
/* XXX stat */
}
ATH_TXQ_UNLOCK(txq);
}
return m;
}
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
static struct ath_buf *
_ath_getbuf_locked(struct ath_softc *sc)
{
struct ath_buf *bf;
ATH_TXBUF_LOCK_ASSERT(sc);
bf = STAILQ_FIRST(&sc->sc_txbuf);
if (bf != NULL && (bf->bf_flags & ATH_BUF_BUSY) == 0)
STAILQ_REMOVE_HEAD(&sc->sc_txbuf, bf_list);
else
bf = NULL;
if (bf == NULL) {
DPRINTF(sc, ATH_DEBUG_XMIT, "%s: %s\n", __func__,
STAILQ_FIRST(&sc->sc_txbuf) == NULL ?
"out of xmit buffers" : "xmit buffer busy");
sc->sc_stats.ast_tx_nobuf++;
}
return bf;
}
static struct ath_buf *
ath_getbuf(struct ath_softc *sc)
{
struct ath_buf *bf;
ATH_TXBUF_LOCK(sc);
bf = _ath_getbuf_locked(sc);
if (bf == NULL) {
struct ifnet *ifp = sc->sc_ifp;
DPRINTF(sc, ATH_DEBUG_XMIT, "%s: stop queue\n", __func__);
sc->sc_stats.ast_tx_qstop++;
ifp->if_drv_flags |= IFF_DRV_OACTIVE;
}
ATH_TXBUF_UNLOCK(sc);
return bf;
}
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
/*
* Cleanup driver resources when we run out of buffers
* while processing fragments; return the tx buffers
* allocated and drop node references.
*/
static void
ath_txfrag_cleanup(struct ath_softc *sc,
ath_bufhead *frags, struct ieee80211_node *ni)
{
struct ath_buf *bf, *next;
ATH_TXBUF_LOCK_ASSERT(sc);
STAILQ_FOREACH_SAFE(bf, frags, bf_list, next) {
/* NB: bf assumed clean */
STAILQ_REMOVE_HEAD(frags, bf_list);
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
STAILQ_INSERT_HEAD(&sc->sc_txbuf, bf, bf_list);
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
ieee80211_node_decref(ni);
}
}
/*
* Setup xmit of a fragmented frame. Allocate a buffer
* for each frag and bump the node reference count to
* reflect the held reference to be setup by ath_tx_start.
*/
static int
ath_txfrag_setup(struct ath_softc *sc, ath_bufhead *frags,
struct mbuf *m0, struct ieee80211_node *ni)
{
struct mbuf *m;
struct ath_buf *bf;
ATH_TXBUF_LOCK(sc);
for (m = m0->m_nextpkt; m != NULL; m = m->m_nextpkt) {
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
bf = _ath_getbuf_locked(sc);
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
if (bf == NULL) { /* out of buffers, cleanup */
ath_txfrag_cleanup(sc, frags, ni);
break;
}
ieee80211_node_incref(ni);
STAILQ_INSERT_TAIL(frags, bf, bf_list);
}
ATH_TXBUF_UNLOCK(sc);
return !STAILQ_EMPTY(frags);
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
static void
ath_start(struct ifnet *ifp)
{
struct ath_softc *sc = ifp->if_softc;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
struct ieee80211com *ic = ifp->if_l2com;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
struct ieee80211_node *ni;
struct ath_buf *bf;
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
struct mbuf *m, *next;
struct ath_txq *txq;
ath_bufhead frags;
int pri;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and IFF_DRV_RUNNING, as well as the move from ifnet.if_flags to ifnet.if_drv_flags. Device drivers are now responsible for synchronizing access to these flags, as they are in if_drv_flags. This helps prevent races between the network stack and device driver in maintaining the interface flags field. Many __FreeBSD__ and __FreeBSD_version checks maintained and continued; some less so. Reviewed by: pjd, bz MFC after: 7 days
2005-08-09 10:20:02 +00:00
if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0 || sc->sc_invalid)
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
return;
for (;;) {
/*
* Grab a TX buffer and associated resources.
*/
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
bf = ath_getbuf(sc);
if (bf == NULL)
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
break;
Add missing bits that made bg scanning lame: o update ic_lastdata to reflect time of last outbound frame o outbound traffic must preempt/cancel bg scanning to avoid delays This stuff was somehow missed in the initial import. Reviewed by: thompsa, avatar, sephe (earlier version) Approved by: re (blanket wireless)
2007-09-05 23:00:27 +00:00
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
IFQ_DEQUEUE(&ifp->if_snd, m);
if (m == NULL) {
ATH_TXBUF_LOCK(sc);
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
STAILQ_INSERT_HEAD(&sc->sc_txbuf, bf, bf_list);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ATH_TXBUF_UNLOCK(sc);
break;
}
STAILQ_INIT(&frags);
ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
pri = M_WME_GETAC(m);
txq = sc->sc_ac2q[pri];
Fix checks for fast frames negotiation. ni_ath_flags holds the capabilities reported by the ap. These need to be cross-checked against the local configuration in the vap. Previously we were only checking the ap capabilities which meant that if an ap reported it was ff-capable but we were not setup to use them we'd try to do ff aggregation and drop the frame. There are a number of problems to be fixed here but applying this fix immediately as the problem causes all traffic to stop (and has not workaround). Reported by: Ashish Shukla
2008-10-30 16:22:04 +00:00
if (IEEE80211_ATH_CAP(ni->ni_vap, ni, IEEE80211_NODE_FF)) {
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
/*
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
* Check queue length; if too deep drop this
* frame (tail drop considered good).
Update with last year of work.
2004-12-08 17:34:36 +00:00
*/
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if (txq->axq_depth >= sc->sc_fftxqmax) {
DPRINTF(sc, ATH_DEBUG_FF,
"[%s] tail drop on q %u depth %u\n",
ether_sprintf(ni->ni_macaddr),
txq->axq_qnum, txq->axq_depth);
sc->sc_stats.ast_tx_qfull++;
reclaim mbufs in failure cases Submitted by: Tai-hwa Liang
2005-03-31 16:39:18 +00:00
m_freem(m);
Update with last year of work.
2004-12-08 17:34:36 +00:00
goto reclaim;
}
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
m = ath_ff_check(sc, txq, bf, m, ni);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
if (m == NULL) {
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
/* NB: ni ref & bf held on stageq */
continue;
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ifp->if_opackets++;
/*
* Encapsulate the packet in prep for transmission.
*/
m = ieee80211_encap(ni, m);
if (m == NULL) {
DPRINTF(sc, ATH_DEBUG_XMIT,
"%s: encapsulation failure\n", __func__);
sc->sc_stats.ast_tx_encap++;
goto bad;
}
/*
* Check for fragmentation. If this frame
* has been broken up verify we have enough
* buffers to send all the fragments so all
* go out or none...
*/
if ((m->m_flags & M_FRAG) &&
!ath_txfrag_setup(sc, &frags, m, ni)) {
DPRINTF(sc, ATH_DEBUG_XMIT,
"%s: out of txfrag buffers\n", __func__);
ic->ic_stats.is_tx_nobuf++; /* XXX */
ath_freetx(m);
goto bad;
}
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
nextfrag:
/*
* Pass the frame to the h/w for transmission.
* Fragmented frames have each frag chained together
* with m_nextpkt. We know there are sufficient ath_buf's
* to send all the frags because of work done by
* ath_txfrag_setup. We leave m_nextpkt set while
* calling ath_tx_start so it can use it to extend the
* the tx duration to cover the subsequent frag and
* so it can reclaim all the mbufs in case of an error;
* ath_tx_start clears m_nextpkt once it commits to
* handing the frame to the hardware.
*/
next = m->m_nextpkt;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
if (ath_tx_start(sc, ni, bf, m)) {
bad:
Update with last year of work.
2004-12-08 17:34:36 +00:00
ifp->if_oerrors++;
reclaim:
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
bf->bf_m = NULL;
bf->bf_node = NULL;
o convert mutex calls to #defines for portability, etc. o destroy mutex's on detach (was missing)
2003-10-14 22:51:45 +00:00
ATH_TXBUF_LOCK(sc);
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
STAILQ_INSERT_HEAD(&sc->sc_txbuf, bf, bf_list);
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
ath_txfrag_cleanup(sc, &frags, ni);
o convert mutex calls to #defines for portability, etc. o destroy mutex's on detach (was missing)
2003-10-14 22:51:45 +00:00
ATH_TXBUF_UNLOCK(sc);
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (ni != NULL)
ieee80211_free_node(ni);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
continue;
}
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
if (next != NULL) {
/*
* Beware of state changing between frags.
* XXX check sta power-save state?
*/
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if (ni->ni_vap->iv_state != IEEE80211_S_RUN) {
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
DPRINTF(sc, ATH_DEBUG_XMIT,
"%s: flush fragmented packet, state %s\n",
__func__,
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ieee80211_state_name[ni->ni_vap->iv_state]);
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
ath_freetx(next);
goto reclaim;
}
m = next;
bf = STAILQ_FIRST(&frags);
KASSERT(bf != NULL, ("no buf for txfrag"));
STAILQ_REMOVE_HEAD(&frags, bf_list);
goto nextfrag;
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
ifp->if_timer = 5;
#if 0
/*
* Flush stale frames from the fast-frame staging queue.
*/
if (ic->ic_opmode != IEEE80211_M_STA)
ath_ff_stageq_flush(sc, txq, ath_ff_ageflushtestdone);
#endif
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
}
static int
ath_media_change(struct ifnet *ifp)
{
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
int error = ieee80211_media_change(ifp);
/* NB: only the fixed rate can change and that doesn't need a reset */
return (error == ENETRESET ? 0 : error);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
o add opt_ath.h enable tweaking various config parameters for the driver without modifying the source code o default debug msgs and diag support to off MFC after: 3 days
2006-04-03 18:14:02 +00:00
#ifdef ATH_DEBUG
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
static void
Add support for newer parts that do not require separate keycache entries for tx+rx mic keys. This requires a newer hal, but works fine with the current hal in cvs. MFC after: 2 weeks
2006-09-18 16:26:19 +00:00
ath_keyprint(struct ath_softc *sc, const char *tag, u_int ix,
Update with last year of work.
2004-12-08 17:34:36 +00:00
const HAL_KEYVAL *hk, const u_int8_t mac[IEEE80211_ADDR_LEN])
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
{
Update with last year of work.
2004-12-08 17:34:36 +00:00
static const char *ciphers[] = {
"WEP",
"AES-OCB",
"AES-CCM",
"CKIP",
"TKIP",
"CLR",
};
int i, n;
printf("%s: [%02u] %-7s ", tag, ix, ciphers[hk->kv_type]);
for (i = 0, n = hk->kv_len; i < n; i++)
printf("%02x", hk->kv_val[i]);
printf(" mac %s", ether_sprintf(mac));
if (hk->kv_type == HAL_CIPHER_TKIP) {
Add support for newer parts that do not require separate keycache entries for tx+rx mic keys. This requires a newer hal, but works fine with the current hal in cvs. MFC after: 2 weeks
2006-09-18 16:26:19 +00:00
printf(" %s ", sc->sc_splitmic ? "mic" : "rxmic");
Update with last year of work.
2004-12-08 17:34:36 +00:00
for (i = 0; i < sizeof(hk->kv_mic); i++)
printf("%02x", hk->kv_mic[i]);
Add support for newer parts that do not require separate keycache entries for tx+rx mic keys. This requires a newer hal, but works fine with the current hal in cvs. MFC after: 2 weeks
2006-09-18 16:26:19 +00:00
if (!sc->sc_splitmic) {
printf(" txmic ");
for (i = 0; i < sizeof(hk->kv_txmic); i++)
printf("%02x", hk->kv_txmic[i]);
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
printf("\n");
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
#endif
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* Set a TKIP key into the hardware. This handles the
* potential distribution of key state to multiple key
* cache slots for TKIP.
*/
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
static int
Update with last year of work.
2004-12-08 17:34:36 +00:00
ath_keyset_tkip(struct ath_softc *sc, const struct ieee80211_key *k,
HAL_KEYVAL *hk, const u_int8_t mac[IEEE80211_ADDR_LEN])
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
{
Update with last year of work.
2004-12-08 17:34:36 +00:00
#define IEEE80211_KEY_XR (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV)
static const u_int8_t zerobssid[IEEE80211_ADDR_LEN];
struct ath_hal *ah = sc->sc_ah;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
KASSERT(k->wk_cipher->ic_cipher == IEEE80211_CIPHER_TKIP,
("got a non-TKIP key, cipher %u", k->wk_cipher->ic_cipher));
if ((k->wk_flags & IEEE80211_KEY_XR) == IEEE80211_KEY_XR) {
Add support for newer parts that do not require separate keycache entries for tx+rx mic keys. This requires a newer hal, but works fine with the current hal in cvs. MFC after: 2 weeks
2006-09-18 16:26:19 +00:00
if (sc->sc_splitmic) {
/*
* TX key goes at first index, RX key at the rx index.
* The hal handles the MIC keys at index+64.
*/
memcpy(hk->kv_mic, k->wk_txmic, sizeof(hk->kv_mic));
KEYPRINTF(sc, k->wk_keyix, hk, zerobssid);
if (!ath_hal_keyset(ah, k->wk_keyix, hk, zerobssid))
return 0;
memcpy(hk->kv_mic, k->wk_rxmic, sizeof(hk->kv_mic));
KEYPRINTF(sc, k->wk_keyix+32, hk, mac);
/* XXX delete tx key on failure? */
return ath_hal_keyset(ah, k->wk_keyix+32, hk, mac);
} else {
/*
* Room for both TX+RX MIC keys in one key cache
* slot, just set key at the first index; the hal
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
* will handle the rest.
Add support for newer parts that do not require separate keycache entries for tx+rx mic keys. This requires a newer hal, but works fine with the current hal in cvs. MFC after: 2 weeks
2006-09-18 16:26:19 +00:00
*/
memcpy(hk->kv_mic, k->wk_rxmic, sizeof(hk->kv_mic));
memcpy(hk->kv_txmic, k->wk_txmic, sizeof(hk->kv_txmic));
KEYPRINTF(sc, k->wk_keyix, hk, mac);
return ath_hal_keyset(ah, k->wk_keyix, hk, mac);
}
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
} else if (k->wk_flags & IEEE80211_KEY_XMIT) {
o unbreak handling of TKIP tx-only keys for splitmic chips o yank compat support for hal's older than 0.9.20.3; leave a CTASSERT in place just in case
2008-05-03 21:55:02 +00:00
if (sc->sc_splitmic) {
/*
* NB: must pass MIC key in expected location when
* the keycache only holds one MIC key per entry.
*/
memcpy(hk->kv_mic, k->wk_txmic, sizeof(hk->kv_txmic));
} else
memcpy(hk->kv_txmic, k->wk_txmic, sizeof(hk->kv_txmic));
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
KEYPRINTF(sc, k->wk_keyix, hk, mac);
return ath_hal_keyset(ah, k->wk_keyix, hk, mac);
} else if (k->wk_flags & IEEE80211_KEY_RECV) {
memcpy(hk->kv_mic, k->wk_rxmic, sizeof(hk->kv_mic));
Misc keycache changes: o purge ath_initkeytable; it's not needed o add multicast key search support for supporting multiple group keys (disabled for now; requires updated hal) o create keycache entry for stations using open auth so they get h/w antenna management support o add keycache -> node mapping table; eliminates mac-based lookup in the net80211 layer
2005-06-06 16:39:21 +00:00
KEYPRINTF(sc, k->wk_keyix, hk, mac);
return ath_hal_keyset(ah, k->wk_keyix, hk, mac);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
return 0;
#undef IEEE80211_KEY_XR
}
/*
* Set a net80211 key into the hardware. This handles the
* potential distribution of key state to multiple key
* cache slots for TKIP with hardware MIC support.
*/
static int
ath_keyset(struct ath_softc *sc, const struct ieee80211_key *k,
Misc keycache changes: o purge ath_initkeytable; it's not needed o add multicast key search support for supporting multiple group keys (disabled for now; requires updated hal) o create keycache entry for stations using open auth so they get h/w antenna management support o add keycache -> node mapping table; eliminates mac-based lookup in the net80211 layer
2005-06-06 16:39:21 +00:00
struct ieee80211_node *bss)
Update with last year of work.
2004-12-08 17:34:36 +00:00
{
#define N(a) (sizeof(a)/sizeof(a[0]))
static const u_int8_t ciphermap[] = {
HAL_CIPHER_WEP, /* IEEE80211_CIPHER_WEP */
HAL_CIPHER_TKIP, /* IEEE80211_CIPHER_TKIP */
HAL_CIPHER_AES_OCB, /* IEEE80211_CIPHER_AES_OCB */
HAL_CIPHER_AES_CCM, /* IEEE80211_CIPHER_AES_CCM */
(u_int8_t) -1, /* 4 is not allocated */
HAL_CIPHER_CKIP, /* IEEE80211_CIPHER_CKIP */
HAL_CIPHER_CLR, /* IEEE80211_CIPHER_NONE */
};
struct ath_hal *ah = sc->sc_ah;
const struct ieee80211_cipher *cip = k->wk_cipher;
Misc keycache changes: o purge ath_initkeytable; it's not needed o add multicast key search support for supporting multiple group keys (disabled for now; requires updated hal) o create keycache entry for stations using open auth so they get h/w antenna management support o add keycache -> node mapping table; eliminates mac-based lookup in the net80211 layer
2005-06-06 16:39:21 +00:00
u_int8_t gmac[IEEE80211_ADDR_LEN];
const u_int8_t *mac;
Update with last year of work.
2004-12-08 17:34:36 +00:00
HAL_KEYVAL hk;
memset(&hk, 0, sizeof(hk));
/*
* Software crypto uses a "clear key" so non-crypto
* state kept in the key cache are maintained and
* so that rx frames have an entry to match.
*/
if ((k->wk_flags & IEEE80211_KEY_SWCRYPT) == 0) {
KASSERT(cip->ic_cipher < N(ciphermap),
("invalid cipher type %u", cip->ic_cipher));
hk.kv_type = ciphermap[cip->ic_cipher];
hk.kv_len = k->wk_keylen;
memcpy(hk.kv_val, k->wk_key, k->wk_keylen);
} else
hk.kv_type = HAL_CIPHER_CLR;
Misc keycache changes: o purge ath_initkeytable; it's not needed o add multicast key search support for supporting multiple group keys (disabled for now; requires updated hal) o create keycache entry for stations using open auth so they get h/w antenna management support o add keycache -> node mapping table; eliminates mac-based lookup in the net80211 layer
2005-06-06 16:39:21 +00:00
if ((k->wk_flags & IEEE80211_KEY_GROUP) && sc->sc_mcastkey) {
/*
* Group keys on hardware that supports multicast frame
* key search use a mac that is the sender's address with
* the high bit set instead of the app-specified address.
*/
IEEE80211_ADDR_COPY(gmac, bss->ni_macaddr);
gmac[0] |= 0x80;
mac = gmac;
} else
Cleanup power handling and fix suspend/resume: o do not put the chip into full sleep in ath_stop as it gains nothing and causes many parts to hang in ath_detach because we may touch the chip during vap teardown; this may also fix issues with unloading the module o add a note in ath_detach to explain ath_hal_detach puts the chip in low power mode; this is useful to know as it means unloading the module will place a pci device in the lowest possible power state o leave an #ifdef notyet marker for powering down the chip when a device is marked down; we can't do that until we handle all the ways the driver may be entered and touch the chip o fix resume by reloading the h/w key cache as it's been clobbered (for pci) by the socket being powered off; for station mode we directly stop+init the chip and then simulate a beacon miss to get the upper layers sync'd up; for other configs we must brute force stop+start the vaps so they go through the state machine
2008-05-29 00:10:48 +00:00
mac = k->wk_macaddr;
Misc keycache changes: o purge ath_initkeytable; it's not needed o add multicast key search support for supporting multiple group keys (disabled for now; requires updated hal) o create keycache entry for stations using open auth so they get h/w antenna management support o add keycache -> node mapping table; eliminates mac-based lookup in the net80211 layer
2005-06-06 16:39:21 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (hk.kv_type == HAL_CIPHER_TKIP &&
Add support for newer parts that do not require separate keycache entries for tx+rx mic keys. This requires a newer hal, but works fine with the current hal in cvs. MFC after: 2 weeks
2006-09-18 16:26:19 +00:00
(k->wk_flags & IEEE80211_KEY_SWMIC) == 0) {
Update with last year of work.
2004-12-08 17:34:36 +00:00
return ath_keyset_tkip(sc, k, &hk, mac);
} else {
KEYPRINTF(sc, k->wk_keyix, &hk, mac);
return ath_hal_keyset(ah, k->wk_keyix, &hk, mac);
}
#undef N
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* Allocate tx/rx key slots for TKIP. We allocate two slots for
* each key, one for decrypt/encrypt and the other for the MIC.
*/
static u_int16_t
Split crypto tx+rx key indices and add a key index -> node mapping table: Crypto changes: o change driver/net80211 key_alloc api to return tx+rx key indices; a driver can leave the rx key index set to IEEE80211_KEYIX_NONE or set it to be the same as the tx key index (the former disables use of the key index in building the keyix->node mapping table and is the default setup for naive drivers by null_key_alloc) o add cs_max_keyid to crypto state to specify the max h/w key index a driver will return; this is used to allocate the key index mapping table and to bounds check table loookups o while here introduce ieee80211_keyix (finally) for the type of a h/w key index o change crypto notifiers for rx failures to pass the rx key index up as appropriate (michael failure, replay, etc.) Node table changes: o optionally allocate a h/w key index to node mapping table for the station table using the max key index setting supplied by drivers (note the scan table does not get a map) o defer node table allocation to lateattach so the driver has a chance to set the max key id to size the key index map o while here also defer the aid bitmap allocation o add new ieee80211_find_rxnode_withkey api to find a sta/node entry on frame receive with an optional h/w key index to use in checking mapping table; also updates the map if it does a hash lookup and the found node has a rx key index set in the unicast key; note this work is separated from the old ieee80211_find_rxnode call so drivers do not need to be aware of the new mechanism o move some node table manipulation under the node table lock to close a race on node delete o add ieee80211_node_delucastkey to do the dirty work of deleting unicast key state for a node (deletes any key and handles key map references) Ath driver: o nuke private sc_keyixmap mechansim in favor of net80211 support o update key alloc api These changes close several race conditions for the ath driver operating in ap mode. Other drivers should see no change. Station mode operation for ath no longer uses the key index map but performance tests show no noticeable change and this will be fixed when the scan table is eliminated with the new scanning support. Tested by: Michal Mertl, avatar, others Reviewed by: avatar, others MFC after: 2 weeks
2005-08-08 18:46:36 +00:00
key_alloc_2pair(struct ath_softc *sc,
ieee80211_keyix *txkeyix, ieee80211_keyix *rxkeyix)
Update with last year of work.
2004-12-08 17:34:36 +00:00
{
#define N(a) (sizeof(a)/sizeof(a[0]))
u_int i, keyix;
KASSERT(sc->sc_splitmic, ("key cache !split"));
/* XXX could optimize */
for (i = 0; i < N(sc->sc_keymap)/4; i++) {
u_int8_t b = sc->sc_keymap[i];
if (b != 0xff) {
/*
* One or more slots in this byte are free.
*/
keyix = i*NBBY;
while (b & 1) {
again:
keyix++;
b >>= 1;
}
/* XXX IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV */
if (isset(sc->sc_keymap, keyix+32) ||
isset(sc->sc_keymap, keyix+64) ||
isset(sc->sc_keymap, keyix+32+64)) {
/* full pair unavailable */
/* XXX statistic */
if (keyix == (i+1)*NBBY) {
/* no slots were appropriate, advance */
continue;
}
goto again;
}
setbit(sc->sc_keymap, keyix);
setbit(sc->sc_keymap, keyix+64);
setbit(sc->sc_keymap, keyix+32);
setbit(sc->sc_keymap, keyix+32+64);
DPRINTF(sc, ATH_DEBUG_KEYCACHE,
"%s: key pair %u,%u %u,%u\n",
__func__, keyix, keyix+64,
keyix+32, keyix+32+64);
Split crypto tx+rx key indices and add a key index -> node mapping table: Crypto changes: o change driver/net80211 key_alloc api to return tx+rx key indices; a driver can leave the rx key index set to IEEE80211_KEYIX_NONE or set it to be the same as the tx key index (the former disables use of the key index in building the keyix->node mapping table and is the default setup for naive drivers by null_key_alloc) o add cs_max_keyid to crypto state to specify the max h/w key index a driver will return; this is used to allocate the key index mapping table and to bounds check table loookups o while here introduce ieee80211_keyix (finally) for the type of a h/w key index o change crypto notifiers for rx failures to pass the rx key index up as appropriate (michael failure, replay, etc.) Node table changes: o optionally allocate a h/w key index to node mapping table for the station table using the max key index setting supplied by drivers (note the scan table does not get a map) o defer node table allocation to lateattach so the driver has a chance to set the max key id to size the key index map o while here also defer the aid bitmap allocation o add new ieee80211_find_rxnode_withkey api to find a sta/node entry on frame receive with an optional h/w key index to use in checking mapping table; also updates the map if it does a hash lookup and the found node has a rx key index set in the unicast key; note this work is separated from the old ieee80211_find_rxnode call so drivers do not need to be aware of the new mechanism o move some node table manipulation under the node table lock to close a race on node delete o add ieee80211_node_delucastkey to do the dirty work of deleting unicast key state for a node (deletes any key and handles key map references) Ath driver: o nuke private sc_keyixmap mechansim in favor of net80211 support o update key alloc api These changes close several race conditions for the ath driver operating in ap mode. Other drivers should see no change. Station mode operation for ath no longer uses the key index map but performance tests show no noticeable change and this will be fixed when the scan table is eliminated with the new scanning support. Tested by: Michal Mertl, avatar, others Reviewed by: avatar, others MFC after: 2 weeks
2005-08-08 18:46:36 +00:00
*txkeyix = keyix;
*rxkeyix = keyix+32;
return 1;
Update with last year of work.
2004-12-08 17:34:36 +00:00
}
}
DPRINTF(sc, ATH_DEBUG_KEYCACHE, "%s: out of pair space\n", __func__);
Split crypto tx+rx key indices and add a key index -> node mapping table: Crypto changes: o change driver/net80211 key_alloc api to return tx+rx key indices; a driver can leave the rx key index set to IEEE80211_KEYIX_NONE or set it to be the same as the tx key index (the former disables use of the key index in building the keyix->node mapping table and is the default setup for naive drivers by null_key_alloc) o add cs_max_keyid to crypto state to specify the max h/w key index a driver will return; this is used to allocate the key index mapping table and to bounds check table loookups o while here introduce ieee80211_keyix (finally) for the type of a h/w key index o change crypto notifiers for rx failures to pass the rx key index up as appropriate (michael failure, replay, etc.) Node table changes: o optionally allocate a h/w key index to node mapping table for the station table using the max key index setting supplied by drivers (note the scan table does not get a map) o defer node table allocation to lateattach so the driver has a chance to set the max key id to size the key index map o while here also defer the aid bitmap allocation o add new ieee80211_find_rxnode_withkey api to find a sta/node entry on frame receive with an optional h/w key index to use in checking mapping table; also updates the map if it does a hash lookup and the found node has a rx key index set in the unicast key; note this work is separated from the old ieee80211_find_rxnode call so drivers do not need to be aware of the new mechanism o move some node table manipulation under the node table lock to close a race on node delete o add ieee80211_node_delucastkey to do the dirty work of deleting unicast key state for a node (deletes any key and handles key map references) Ath driver: o nuke private sc_keyixmap mechansim in favor of net80211 support o update key alloc api These changes close several race conditions for the ath driver operating in ap mode. Other drivers should see no change. Station mode operation for ath no longer uses the key index map but performance tests show no noticeable change and this will be fixed when the scan table is eliminated with the new scanning support. Tested by: Michal Mertl, avatar, others Reviewed by: avatar, others MFC after: 2 weeks
2005-08-08 18:46:36 +00:00
return 0;
Update with last year of work.
2004-12-08 17:34:36 +00:00
#undef N
}
Add support for newer parts that do not require separate keycache entries for tx+rx mic keys. This requires a newer hal, but works fine with the current hal in cvs. MFC after: 2 weeks
2006-09-18 16:26:19 +00:00
/*
* Allocate tx/rx key slots for TKIP. We allocate two slots for
* each key, one for decrypt/encrypt and the other for the MIC.
*/
static u_int16_t
key_alloc_pair(struct ath_softc *sc,
ieee80211_keyix *txkeyix, ieee80211_keyix *rxkeyix)
{
#define N(a) (sizeof(a)/sizeof(a[0]))
u_int i, keyix;
KASSERT(!sc->sc_splitmic, ("key cache split"));
/* XXX could optimize */
for (i = 0; i < N(sc->sc_keymap)/4; i++) {
u_int8_t b = sc->sc_keymap[i];
if (b != 0xff) {
/*
* One or more slots in this byte are free.
*/
keyix = i*NBBY;
while (b & 1) {
again:
keyix++;
b >>= 1;
}
if (isset(sc->sc_keymap, keyix+64)) {
/* full pair unavailable */
/* XXX statistic */
if (keyix == (i+1)*NBBY) {
/* no slots were appropriate, advance */
continue;
}
goto again;
}
setbit(sc->sc_keymap, keyix);
setbit(sc->sc_keymap, keyix+64);
DPRINTF(sc, ATH_DEBUG_KEYCACHE,
"%s: key pair %u,%u\n",
__func__, keyix, keyix+64);
*txkeyix = *rxkeyix = keyix;
return 1;
}
}
DPRINTF(sc, ATH_DEBUG_KEYCACHE, "%s: out of pair space\n", __func__);
return 0;
#undef N
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* Allocate a single key cache slot.
*/
Split crypto tx+rx key indices and add a key index -> node mapping table: Crypto changes: o change driver/net80211 key_alloc api to return tx+rx key indices; a driver can leave the rx key index set to IEEE80211_KEYIX_NONE or set it to be the same as the tx key index (the former disables use of the key index in building the keyix->node mapping table and is the default setup for naive drivers by null_key_alloc) o add cs_max_keyid to crypto state to specify the max h/w key index a driver will return; this is used to allocate the key index mapping table and to bounds check table loookups o while here introduce ieee80211_keyix (finally) for the type of a h/w key index o change crypto notifiers for rx failures to pass the rx key index up as appropriate (michael failure, replay, etc.) Node table changes: o optionally allocate a h/w key index to node mapping table for the station table using the max key index setting supplied by drivers (note the scan table does not get a map) o defer node table allocation to lateattach so the driver has a chance to set the max key id to size the key index map o while here also defer the aid bitmap allocation o add new ieee80211_find_rxnode_withkey api to find a sta/node entry on frame receive with an optional h/w key index to use in checking mapping table; also updates the map if it does a hash lookup and the found node has a rx key index set in the unicast key; note this work is separated from the old ieee80211_find_rxnode call so drivers do not need to be aware of the new mechanism o move some node table manipulation under the node table lock to close a race on node delete o add ieee80211_node_delucastkey to do the dirty work of deleting unicast key state for a node (deletes any key and handles key map references) Ath driver: o nuke private sc_keyixmap mechansim in favor of net80211 support o update key alloc api These changes close several race conditions for the ath driver operating in ap mode. Other drivers should see no change. Station mode operation for ath no longer uses the key index map but performance tests show no noticeable change and this will be fixed when the scan table is eliminated with the new scanning support. Tested by: Michal Mertl, avatar, others Reviewed by: avatar, others MFC after: 2 weeks
2005-08-08 18:46:36 +00:00
static int
key_alloc_single(struct ath_softc *sc,
ieee80211_keyix *txkeyix, ieee80211_keyix *rxkeyix)
Update with last year of work.
2004-12-08 17:34:36 +00:00
{
#define N(a) (sizeof(a)/sizeof(a[0]))
u_int i, keyix;
/* XXX try i,i+32,i+64,i+32+64 to minimize key pair conflicts */
for (i = 0; i < N(sc->sc_keymap); i++) {
u_int8_t b = sc->sc_keymap[i];
if (b != 0xff) {
/*
* One or more slots are free.
*/
keyix = i*NBBY;
while (b & 1)
keyix++, b >>= 1;
setbit(sc->sc_keymap, keyix);
DPRINTF(sc, ATH_DEBUG_KEYCACHE, "%s: key %u\n",
__func__, keyix);
Split crypto tx+rx key indices and add a key index -> node mapping table: Crypto changes: o change driver/net80211 key_alloc api to return tx+rx key indices; a driver can leave the rx key index set to IEEE80211_KEYIX_NONE or set it to be the same as the tx key index (the former disables use of the key index in building the keyix->node mapping table and is the default setup for naive drivers by null_key_alloc) o add cs_max_keyid to crypto state to specify the max h/w key index a driver will return; this is used to allocate the key index mapping table and to bounds check table loookups o while here introduce ieee80211_keyix (finally) for the type of a h/w key index o change crypto notifiers for rx failures to pass the rx key index up as appropriate (michael failure, replay, etc.) Node table changes: o optionally allocate a h/w key index to node mapping table for the station table using the max key index setting supplied by drivers (note the scan table does not get a map) o defer node table allocation to lateattach so the driver has a chance to set the max key id to size the key index map o while here also defer the aid bitmap allocation o add new ieee80211_find_rxnode_withkey api to find a sta/node entry on frame receive with an optional h/w key index to use in checking mapping table; also updates the map if it does a hash lookup and the found node has a rx key index set in the unicast key; note this work is separated from the old ieee80211_find_rxnode call so drivers do not need to be aware of the new mechanism o move some node table manipulation under the node table lock to close a race on node delete o add ieee80211_node_delucastkey to do the dirty work of deleting unicast key state for a node (deletes any key and handles key map references) Ath driver: o nuke private sc_keyixmap mechansim in favor of net80211 support o update key alloc api These changes close several race conditions for the ath driver operating in ap mode. Other drivers should see no change. Station mode operation for ath no longer uses the key index map but performance tests show no noticeable change and this will be fixed when the scan table is eliminated with the new scanning support. Tested by: Michal Mertl, avatar, others Reviewed by: avatar, others MFC after: 2 weeks
2005-08-08 18:46:36 +00:00
*txkeyix = *rxkeyix = keyix;
return 1;
Update with last year of work.
2004-12-08 17:34:36 +00:00
}
}
DPRINTF(sc, ATH_DEBUG_KEYCACHE, "%s: out of space\n", __func__);
Split crypto tx+rx key indices and add a key index -> node mapping table: Crypto changes: o change driver/net80211 key_alloc api to return tx+rx key indices; a driver can leave the rx key index set to IEEE80211_KEYIX_NONE or set it to be the same as the tx key index (the former disables use of the key index in building the keyix->node mapping table and is the default setup for naive drivers by null_key_alloc) o add cs_max_keyid to crypto state to specify the max h/w key index a driver will return; this is used to allocate the key index mapping table and to bounds check table loookups o while here introduce ieee80211_keyix (finally) for the type of a h/w key index o change crypto notifiers for rx failures to pass the rx key index up as appropriate (michael failure, replay, etc.) Node table changes: o optionally allocate a h/w key index to node mapping table for the station table using the max key index setting supplied by drivers (note the scan table does not get a map) o defer node table allocation to lateattach so the driver has a chance to set the max key id to size the key index map o while here also defer the aid bitmap allocation o add new ieee80211_find_rxnode_withkey api to find a sta/node entry on frame receive with an optional h/w key index to use in checking mapping table; also updates the map if it does a hash lookup and the found node has a rx key index set in the unicast key; note this work is separated from the old ieee80211_find_rxnode call so drivers do not need to be aware of the new mechanism o move some node table manipulation under the node table lock to close a race on node delete o add ieee80211_node_delucastkey to do the dirty work of deleting unicast key state for a node (deletes any key and handles key map references) Ath driver: o nuke private sc_keyixmap mechansim in favor of net80211 support o update key alloc api These changes close several race conditions for the ath driver operating in ap mode. Other drivers should see no change. Station mode operation for ath no longer uses the key index map but performance tests show no noticeable change and this will be fixed when the scan table is eliminated with the new scanning support. Tested by: Michal Mertl, avatar, others Reviewed by: avatar, others MFC after: 2 weeks
2005-08-08 18:46:36 +00:00
return 0;
Update with last year of work.
2004-12-08 17:34:36 +00:00
#undef N
}
/*
* Allocate one or more key cache slots for a uniacst key. The
* key itself is needed only to identify the cipher. For hardware
* TKIP with split cipher+MIC keys we allocate two key cache slot
* pairs so that we can setup separate TX and RX MIC keys. Note
* that the MIC key for a TKIP key at slot i is assumed by the
* hardware to be at slot i+64. This limits TKIP keys to the first
* 64 entries.
*/
static int
Crypto api changes: o don't use the key index to identify when the driver has been asked to allocate a key slot, use an explicit flag; allows drivers to force s/w fallback for entries in the global table o change callback api to allocate driver resources for a crypto key: - de-const the key parameter so drivers can muck with the flags - on callback failure don't automatically try to setup s/w crypto; instead the driver must now mark the key entry for s/w crypto and the caller will re-attach the cipher module NB: api change permits drivers more control over fallback to s/w crypto (e.g. based on a limited number of h/w key slots)
2008-09-21 23:16:19 +00:00
ath_key_alloc(struct ieee80211vap *vap, struct ieee80211_key *k,
Split crypto tx+rx key indices and add a key index -> node mapping table: Crypto changes: o change driver/net80211 key_alloc api to return tx+rx key indices; a driver can leave the rx key index set to IEEE80211_KEYIX_NONE or set it to be the same as the tx key index (the former disables use of the key index in building the keyix->node mapping table and is the default setup for naive drivers by null_key_alloc) o add cs_max_keyid to crypto state to specify the max h/w key index a driver will return; this is used to allocate the key index mapping table and to bounds check table loookups o while here introduce ieee80211_keyix (finally) for the type of a h/w key index o change crypto notifiers for rx failures to pass the rx key index up as appropriate (michael failure, replay, etc.) Node table changes: o optionally allocate a h/w key index to node mapping table for the station table using the max key index setting supplied by drivers (note the scan table does not get a map) o defer node table allocation to lateattach so the driver has a chance to set the max key id to size the key index map o while here also defer the aid bitmap allocation o add new ieee80211_find_rxnode_withkey api to find a sta/node entry on frame receive with an optional h/w key index to use in checking mapping table; also updates the map if it does a hash lookup and the found node has a rx key index set in the unicast key; note this work is separated from the old ieee80211_find_rxnode call so drivers do not need to be aware of the new mechanism o move some node table manipulation under the node table lock to close a race on node delete o add ieee80211_node_delucastkey to do the dirty work of deleting unicast key state for a node (deletes any key and handles key map references) Ath driver: o nuke private sc_keyixmap mechansim in favor of net80211 support o update key alloc api These changes close several race conditions for the ath driver operating in ap mode. Other drivers should see no change. Station mode operation for ath no longer uses the key index map but performance tests show no noticeable change and this will be fixed when the scan table is eliminated with the new scanning support. Tested by: Michal Mertl, avatar, others Reviewed by: avatar, others MFC after: 2 weeks
2005-08-08 18:46:36 +00:00
ieee80211_keyix *keyix, ieee80211_keyix *rxkeyix)
Update with last year of work.
2004-12-08 17:34:36 +00:00
{
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
struct ath_softc *sc = vap->iv_ic->ic_ifp->if_softc;
Update with last year of work.
2004-12-08 17:34:36 +00:00
honor new IEEE80211_KEY_GROUP key flag Reviewed by: Tai-hwa Liang
2005-04-12 17:56:43 +00:00
/*
* Group key allocation must be handled specially for
* parts that do not support multicast key cache search
* functionality. For those parts the key id must match
* the h/w key index so lookups find the right key. On
* parts w/ the key search facility we install the sender's
* mac address (with the high bit set) and let the hardware
* find the key w/o using the key id. This is preferred as
* it permits us to support multiple users for adhoc and/or
* multi-station operation.
*/
fix static key wep; r183248 caused drivers to be called for keys to be assigned to slots in the global key table but ath_key_alloc was not updated to handle that
2008-10-19 21:34:49 +00:00
if (k->wk_keyix != IEEE80211_KEYIX_NONE || /* global key */
((k->wk_flags & IEEE80211_KEY_GROUP) && !sc->sc_mcastkey)) {
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if (!(&vap->iv_nw_keys[0] <= k &&
k < &vap->iv_nw_keys[IEEE80211_WEP_NKID])) {
honor new IEEE80211_KEY_GROUP key flag Reviewed by: Tai-hwa Liang
2005-04-12 17:56:43 +00:00
/* should not happen */
DPRINTF(sc, ATH_DEBUG_KEYCACHE,
"%s: bogus group key\n", __func__);
Split crypto tx+rx key indices and add a key index -> node mapping table: Crypto changes: o change driver/net80211 key_alloc api to return tx+rx key indices; a driver can leave the rx key index set to IEEE80211_KEYIX_NONE or set it to be the same as the tx key index (the former disables use of the key index in building the keyix->node mapping table and is the default setup for naive drivers by null_key_alloc) o add cs_max_keyid to crypto state to specify the max h/w key index a driver will return; this is used to allocate the key index mapping table and to bounds check table loookups o while here introduce ieee80211_keyix (finally) for the type of a h/w key index o change crypto notifiers for rx failures to pass the rx key index up as appropriate (michael failure, replay, etc.) Node table changes: o optionally allocate a h/w key index to node mapping table for the station table using the max key index setting supplied by drivers (note the scan table does not get a map) o defer node table allocation to lateattach so the driver has a chance to set the max key id to size the key index map o while here also defer the aid bitmap allocation o add new ieee80211_find_rxnode_withkey api to find a sta/node entry on frame receive with an optional h/w key index to use in checking mapping table; also updates the map if it does a hash lookup and the found node has a rx key index set in the unicast key; note this work is separated from the old ieee80211_find_rxnode call so drivers do not need to be aware of the new mechanism o move some node table manipulation under the node table lock to close a race on node delete o add ieee80211_node_delucastkey to do the dirty work of deleting unicast key state for a node (deletes any key and handles key map references) Ath driver: o nuke private sc_keyixmap mechansim in favor of net80211 support o update key alloc api These changes close several race conditions for the ath driver operating in ap mode. Other drivers should see no change. Station mode operation for ath no longer uses the key index map but performance tests show no noticeable change and this will be fixed when the scan table is eliminated with the new scanning support. Tested by: Michal Mertl, avatar, others Reviewed by: avatar, others MFC after: 2 weeks
2005-08-08 18:46:36 +00:00
return 0;
honor new IEEE80211_KEY_GROUP key flag Reviewed by: Tai-hwa Liang
2005-04-12 17:56:43 +00:00
}
/*
* XXX we pre-allocate the global keys so
* have no way to check if they've already been allocated.
*/
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
*keyix = *rxkeyix = k - vap->iv_nw_keys;
Split crypto tx+rx key indices and add a key index -> node mapping table: Crypto changes: o change driver/net80211 key_alloc api to return tx+rx key indices; a driver can leave the rx key index set to IEEE80211_KEYIX_NONE or set it to be the same as the tx key index (the former disables use of the key index in building the keyix->node mapping table and is the default setup for naive drivers by null_key_alloc) o add cs_max_keyid to crypto state to specify the max h/w key index a driver will return; this is used to allocate the key index mapping table and to bounds check table loookups o while here introduce ieee80211_keyix (finally) for the type of a h/w key index o change crypto notifiers for rx failures to pass the rx key index up as appropriate (michael failure, replay, etc.) Node table changes: o optionally allocate a h/w key index to node mapping table for the station table using the max key index setting supplied by drivers (note the scan table does not get a map) o defer node table allocation to lateattach so the driver has a chance to set the max key id to size the key index map o while here also defer the aid bitmap allocation o add new ieee80211_find_rxnode_withkey api to find a sta/node entry on frame receive with an optional h/w key index to use in checking mapping table; also updates the map if it does a hash lookup and the found node has a rx key index set in the unicast key; note this work is separated from the old ieee80211_find_rxnode call so drivers do not need to be aware of the new mechanism o move some node table manipulation under the node table lock to close a race on node delete o add ieee80211_node_delucastkey to do the dirty work of deleting unicast key state for a node (deletes any key and handles key map references) Ath driver: o nuke private sc_keyixmap mechansim in favor of net80211 support o update key alloc api These changes close several race conditions for the ath driver operating in ap mode. Other drivers should see no change. Station mode operation for ath no longer uses the key index map but performance tests show no noticeable change and this will be fixed when the scan table is eliminated with the new scanning support. Tested by: Michal Mertl, avatar, others Reviewed by: avatar, others MFC after: 2 weeks
2005-08-08 18:46:36 +00:00
return 1;
honor new IEEE80211_KEY_GROUP key flag Reviewed by: Tai-hwa Liang
2005-04-12 17:56:43 +00:00
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* We allocate two pair for TKIP when using the h/w to do
* the MIC. For everything else, including software crypto,
* we allocate a single entry. Note that s/w crypto requires
* a pass-through slot on the 5211 and 5212. The 5210 does
* not support pass-through cache entries and we map all
* those requests to slot 0.
*/
if (k->wk_flags & IEEE80211_KEY_SWCRYPT) {
Split crypto tx+rx key indices and add a key index -> node mapping table: Crypto changes: o change driver/net80211 key_alloc api to return tx+rx key indices; a driver can leave the rx key index set to IEEE80211_KEYIX_NONE or set it to be the same as the tx key index (the former disables use of the key index in building the keyix->node mapping table and is the default setup for naive drivers by null_key_alloc) o add cs_max_keyid to crypto state to specify the max h/w key index a driver will return; this is used to allocate the key index mapping table and to bounds check table loookups o while here introduce ieee80211_keyix (finally) for the type of a h/w key index o change crypto notifiers for rx failures to pass the rx key index up as appropriate (michael failure, replay, etc.) Node table changes: o optionally allocate a h/w key index to node mapping table for the station table using the max key index setting supplied by drivers (note the scan table does not get a map) o defer node table allocation to lateattach so the driver has a chance to set the max key id to size the key index map o while here also defer the aid bitmap allocation o add new ieee80211_find_rxnode_withkey api to find a sta/node entry on frame receive with an optional h/w key index to use in checking mapping table; also updates the map if it does a hash lookup and the found node has a rx key index set in the unicast key; note this work is separated from the old ieee80211_find_rxnode call so drivers do not need to be aware of the new mechanism o move some node table manipulation under the node table lock to close a race on node delete o add ieee80211_node_delucastkey to do the dirty work of deleting unicast key state for a node (deletes any key and handles key map references) Ath driver: o nuke private sc_keyixmap mechansim in favor of net80211 support o update key alloc api These changes close several race conditions for the ath driver operating in ap mode. Other drivers should see no change. Station mode operation for ath no longer uses the key index map but performance tests show no noticeable change and this will be fixed when the scan table is eliminated with the new scanning support. Tested by: Michal Mertl, avatar, others Reviewed by: avatar, others MFC after: 2 weeks
2005-08-08 18:46:36 +00:00
return key_alloc_single(sc, keyix, rxkeyix);
Update with last year of work.
2004-12-08 17:34:36 +00:00
} else if (k->wk_cipher->ic_cipher == IEEE80211_CIPHER_TKIP &&
Add support for newer parts that do not require separate keycache entries for tx+rx mic keys. This requires a newer hal, but works fine with the current hal in cvs. MFC after: 2 weeks
2006-09-18 16:26:19 +00:00
(k->wk_flags & IEEE80211_KEY_SWMIC) == 0) {
if (sc->sc_splitmic)
return key_alloc_2pair(sc, keyix, rxkeyix);
else
return key_alloc_pair(sc, keyix, rxkeyix);
Update with last year of work.
2004-12-08 17:34:36 +00:00
} else {
Split crypto tx+rx key indices and add a key index -> node mapping table: Crypto changes: o change driver/net80211 key_alloc api to return tx+rx key indices; a driver can leave the rx key index set to IEEE80211_KEYIX_NONE or set it to be the same as the tx key index (the former disables use of the key index in building the keyix->node mapping table and is the default setup for naive drivers by null_key_alloc) o add cs_max_keyid to crypto state to specify the max h/w key index a driver will return; this is used to allocate the key index mapping table and to bounds check table loookups o while here introduce ieee80211_keyix (finally) for the type of a h/w key index o change crypto notifiers for rx failures to pass the rx key index up as appropriate (michael failure, replay, etc.) Node table changes: o optionally allocate a h/w key index to node mapping table for the station table using the max key index setting supplied by drivers (note the scan table does not get a map) o defer node table allocation to lateattach so the driver has a chance to set the max key id to size the key index map o while here also defer the aid bitmap allocation o add new ieee80211_find_rxnode_withkey api to find a sta/node entry on frame receive with an optional h/w key index to use in checking mapping table; also updates the map if it does a hash lookup and the found node has a rx key index set in the unicast key; note this work is separated from the old ieee80211_find_rxnode call so drivers do not need to be aware of the new mechanism o move some node table manipulation under the node table lock to close a race on node delete o add ieee80211_node_delucastkey to do the dirty work of deleting unicast key state for a node (deletes any key and handles key map references) Ath driver: o nuke private sc_keyixmap mechansim in favor of net80211 support o update key alloc api These changes close several race conditions for the ath driver operating in ap mode. Other drivers should see no change. Station mode operation for ath no longer uses the key index map but performance tests show no noticeable change and this will be fixed when the scan table is eliminated with the new scanning support. Tested by: Michal Mertl, avatar, others Reviewed by: avatar, others MFC after: 2 weeks
2005-08-08 18:46:36 +00:00
return key_alloc_single(sc, keyix, rxkeyix);
Update with last year of work.
2004-12-08 17:34:36 +00:00
}
}
/*
* Delete an entry in the key cache allocated by ath_key_alloc.
*/
static int
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ath_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k)
Update with last year of work.
2004-12-08 17:34:36 +00:00
{
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
struct ath_softc *sc = vap->iv_ic->ic_ifp->if_softc;
Update with last year of work.
2004-12-08 17:34:36 +00:00
struct ath_hal *ah = sc->sc_ah;
const struct ieee80211_cipher *cip = k->wk_cipher;
u_int keyix = k->wk_keyix;
DPRINTF(sc, ATH_DEBUG_KEYCACHE, "%s: delete key %u\n", __func__, keyix);
ath_hal_keyreset(ah, keyix);
/*
* Handle split tx/rx keying required for TKIP with h/w MIC.
*/
if (cip->ic_cipher == IEEE80211_CIPHER_TKIP &&
Split crypto tx+rx key indices and add a key index -> node mapping table: Crypto changes: o change driver/net80211 key_alloc api to return tx+rx key indices; a driver can leave the rx key index set to IEEE80211_KEYIX_NONE or set it to be the same as the tx key index (the former disables use of the key index in building the keyix->node mapping table and is the default setup for naive drivers by null_key_alloc) o add cs_max_keyid to crypto state to specify the max h/w key index a driver will return; this is used to allocate the key index mapping table and to bounds check table loookups o while here introduce ieee80211_keyix (finally) for the type of a h/w key index o change crypto notifiers for rx failures to pass the rx key index up as appropriate (michael failure, replay, etc.) Node table changes: o optionally allocate a h/w key index to node mapping table for the station table using the max key index setting supplied by drivers (note the scan table does not get a map) o defer node table allocation to lateattach so the driver has a chance to set the max key id to size the key index map o while here also defer the aid bitmap allocation o add new ieee80211_find_rxnode_withkey api to find a sta/node entry on frame receive with an optional h/w key index to use in checking mapping table; also updates the map if it does a hash lookup and the found node has a rx key index set in the unicast key; note this work is separated from the old ieee80211_find_rxnode call so drivers do not need to be aware of the new mechanism o move some node table manipulation under the node table lock to close a race on node delete o add ieee80211_node_delucastkey to do the dirty work of deleting unicast key state for a node (deletes any key and handles key map references) Ath driver: o nuke private sc_keyixmap mechansim in favor of net80211 support o update key alloc api These changes close several race conditions for the ath driver operating in ap mode. Other drivers should see no change. Station mode operation for ath no longer uses the key index map but performance tests show no noticeable change and this will be fixed when the scan table is eliminated with the new scanning support. Tested by: Michal Mertl, avatar, others Reviewed by: avatar, others MFC after: 2 weeks
2005-08-08 18:46:36 +00:00
(k->wk_flags & IEEE80211_KEY_SWMIC) == 0 && sc->sc_splitmic)
Update with last year of work.
2004-12-08 17:34:36 +00:00
ath_hal_keyreset(ah, keyix+32); /* RX key */
if (keyix >= IEEE80211_WEP_NKID) {
/*
* Don't touch keymap entries for global keys so
* they are never considered for dynamic allocation.
*/
clrbit(sc->sc_keymap, keyix);
if (cip->ic_cipher == IEEE80211_CIPHER_TKIP &&
Add support for newer parts that do not require separate keycache entries for tx+rx mic keys. This requires a newer hal, but works fine with the current hal in cvs. MFC after: 2 weeks
2006-09-18 16:26:19 +00:00
(k->wk_flags & IEEE80211_KEY_SWMIC) == 0) {
Update with last year of work.
2004-12-08 17:34:36 +00:00
clrbit(sc->sc_keymap, keyix+64); /* TX key MIC */
Add support for newer parts that do not require separate keycache entries for tx+rx mic keys. This requires a newer hal, but works fine with the current hal in cvs. MFC after: 2 weeks
2006-09-18 16:26:19 +00:00
if (sc->sc_splitmic) {
/* +32 for RX key, +32+64 for RX key MIC */
clrbit(sc->sc_keymap, keyix+32);
clrbit(sc->sc_keymap, keyix+32+64);
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
return 1;
}
/*
* Set the key cache contents for the specified key. Key cache
* slot(s) must already have been allocated by ath_key_alloc.
*/
static int
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ath_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k,
Update with last year of work.
2004-12-08 17:34:36 +00:00
const u_int8_t mac[IEEE80211_ADDR_LEN])
{
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
struct ath_softc *sc = vap->iv_ic->ic_ifp->if_softc;
Update with last year of work.
2004-12-08 17:34:36 +00:00
Cleanup power handling and fix suspend/resume: o do not put the chip into full sleep in ath_stop as it gains nothing and causes many parts to hang in ath_detach because we may touch the chip during vap teardown; this may also fix issues with unloading the module o add a note in ath_detach to explain ath_hal_detach puts the chip in low power mode; this is useful to know as it means unloading the module will place a pci device in the lowest possible power state o leave an #ifdef notyet marker for powering down the chip when a device is marked down; we can't do that until we handle all the ways the driver may be entered and touch the chip o fix resume by reloading the h/w key cache as it's been clobbered (for pci) by the socket being powered off; for station mode we directly stop+init the chip and then simulate a beacon miss to get the upper layers sync'd up; for other configs we must brute force stop+start the vaps so they go through the state machine
2008-05-29 00:10:48 +00:00
return ath_keyset(sc, k, vap->iv_bss);
Update with last year of work.
2004-12-08 17:34:36 +00:00
}
/*
* Block/unblock tx+rx processing while a key change is done.
* We assume the caller serializes key management operations
* so we only need to worry about synchronization with other
* uses that originate in the driver.
*/
static void
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ath_key_update_begin(struct ieee80211vap *vap)
Update with last year of work.
2004-12-08 17:34:36 +00:00
{
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
struct ifnet *ifp = vap->iv_ic->ic_ifp;
Update with last year of work.
2004-12-08 17:34:36 +00:00
struct ath_softc *sc = ifp->if_softc;
DPRINTF(sc, ATH_DEBUG_KEYCACHE, "%s:\n", __func__);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
taskqueue_block(sc->sc_tq);
Update with last year of work.
2004-12-08 17:34:36 +00:00
IF_LOCK(&ifp->if_snd); /* NB: doesn't block mgmt frames */
}
static void
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ath_key_update_end(struct ieee80211vap *vap)
Update with last year of work.
2004-12-08 17:34:36 +00:00
{
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
struct ifnet *ifp = vap->iv_ic->ic_ifp;
Update with last year of work.
2004-12-08 17:34:36 +00:00
struct ath_softc *sc = ifp->if_softc;
DPRINTF(sc, ATH_DEBUG_KEYCACHE, "%s:\n", __func__);
IF_UNLOCK(&ifp->if_snd);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
taskqueue_unblock(sc->sc_tq);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
o consolidate rx filter calculations in one place o enable beacon reception when operating in adhoc mode so the 802.11 layer can use them to create nodes for peers
2003-10-17 21:58:39 +00:00
/*
* Calculate the receive filter according to the
* operating mode and state:
*
* o always accept unicast, broadcast, and multicast traffic
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
* o accept PHY error frames when hardware doesn't have MIB support
prepare for a new hal
2008-10-27 18:30:33 +00:00
* to count and we need them for ANI (sta mode only until recently)
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
* and we are not scanning (ANI is disabled)
prepare for a new hal
2008-10-27 18:30:33 +00:00
* NB: older hal's add rx filter bits out of sight and we need to
* blindly preserve them
o consolidate rx filter calculations in one place o enable beacon reception when operating in adhoc mode so the 802.11 layer can use them to create nodes for peers
2003-10-17 21:58:39 +00:00
* o probe request frames are accepted only when operating in
* hostap, adhoc, or monitor modes
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
* o enable promiscuous mode
* - when in monitor mode
* - if interface marked PROMISC (assumes bridge setting is filtered)
o consolidate rx filter calculations in one place o enable beacon reception when operating in adhoc mode so the 802.11 layer can use them to create nodes for peers
2003-10-17 21:58:39 +00:00
* o accept beacons:
* - when operating in station mode for collecting rssi data when
* the station is otherwise quiet, or
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
* - when operating in adhoc mode so the 802.11 layer creates
* node table entries for peers,
o consolidate rx filter calculations in one place o enable beacon reception when operating in adhoc mode so the 802.11 layer can use them to create nodes for peers
2003-10-17 21:58:39 +00:00
* - when scanning
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
* - when doing s/w beacon miss (e.g. for ap+sta)
* - when operating in ap mode in 11g to detect overlapping bss that
* require protection
enable rx of control frames when in monitor mode Submitted by: Andrea Bittau <a.bittau@cs.ucl.ac.uk> MFC after: 1 week
2006-06-26 04:31:36 +00:00
* o accept control frames:
* - when in monitor mode
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
* XXX BAR frames for 11n
* XXX HT protection for 11n
o consolidate rx filter calculations in one place o enable beacon reception when operating in adhoc mode so the 802.11 layer can use them to create nodes for peers
2003-10-17 21:58:39 +00:00
*/
static u_int32_t
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
ath_calcrxfilter(struct ath_softc *sc)
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
{
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
struct ifnet *ifp = sc->sc_ifp;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
struct ieee80211com *ic = ifp->if_l2com;
o consolidate rx filter calculations in one place o enable beacon reception when operating in adhoc mode so the 802.11 layer can use them to create nodes for peers
2003-10-17 21:58:39 +00:00
u_int32_t rfilt;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
rfilt = HAL_RX_FILTER_UCAST | HAL_RX_FILTER_BCAST | HAL_RX_FILTER_MCAST;
prepare for a new hal
2008-10-27 18:30:33 +00:00
#if HAL_ABI_VERSION < 0x08011600
rfilt |= (ath_hal_getrxfilter(sc->sc_ah) &
(HAL_RX_FILTER_PHYRADAR | HAL_RX_FILTER_PHYERR));
#elif HAL_ABI_VERSION < 0x08060100
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if (ic->ic_opmode == IEEE80211_M_STA &&
!sc->sc_needmib && !sc->sc_scanning)
rfilt |= HAL_RX_FILTER_PHYERR;
prepare for a new hal
2008-10-27 18:30:33 +00:00
#else
if (!sc->sc_needmib && !sc->sc_scanning)
rfilt |= HAL_RX_FILTER_PHYERR;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
#endif
Explicitly enable probe request frame reception when not in station mode; this is needed for the 5212 which a separate filter bit for these frames. Submitted by: Stephane Laroche <stephane.laroche@colubris.com>
2003-09-01 03:12:19 +00:00
if (ic->ic_opmode != IEEE80211_M_STA)
rfilt |= HAL_RX_FILTER_PROBEREQ;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if (ic->ic_opmode == IEEE80211_M_MONITOR || (ifp->if_flags & IFF_PROMISC))
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
rfilt |= HAL_RX_FILTER_PROM;
Maintain a history of data associated with received frames and use this to calculate smoothed signal quality data for each node. o add a 16-deep history buffer to each driver-private node storage that holds rssi and antenna info for received frames o override the default per-node "get rssi" method to return an average rssi value based on samples collected over the last second o enable beacon reception so even idle systems maintain a running history of signal quality This data may also be useful for improving the rate control algorithm. Based on work by Tom Marshall <tommy@home.tig-grr.com> for MADWIFI.
2003-09-15 22:34:46 +00:00
if (ic->ic_opmode == IEEE80211_M_STA ||
use the ic's opmode instead of our hal equivalent to check for adhoc mode; they are always the same
2008-10-27 17:14:39 +00:00
ic->ic_opmode == IEEE80211_M_IBSS ||
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
sc->sc_swbmiss || sc->sc_scanning)
rfilt |= HAL_RX_FILTER_BEACON;
/*
* NB: We don't recalculate the rx filter when
* ic_protmode changes; otherwise we could do
* this only when ic_protmode != NONE.
*/
if (ic->ic_opmode == IEEE80211_M_HOSTAP &&
IEEE80211_IS_CHAN_ANYG(ic->ic_curchan))
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
rfilt |= HAL_RX_FILTER_BEACON;
enable rx of control frames when in monitor mode Submitted by: Andrea Bittau <a.bittau@cs.ucl.ac.uk> MFC after: 1 week
2006-06-26 04:31:36 +00:00
if (ic->ic_opmode == IEEE80211_M_MONITOR)
rfilt |= HAL_RX_FILTER_CONTROL;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
DPRINTF(sc, ATH_DEBUG_MODE, "%s: RX filter 0x%x, %s if_flags 0x%x\n",
__func__, rfilt, ieee80211_opmode_name[ic->ic_opmode], ifp->if_flags);
o consolidate rx filter calculations in one place o enable beacon reception when operating in adhoc mode so the 802.11 layer can use them to create nodes for peers
2003-10-17 21:58:39 +00:00
return rfilt;
}
static void
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ath_update_promisc(struct ifnet *ifp)
o consolidate rx filter calculations in one place o enable beacon reception when operating in adhoc mode so the 802.11 layer can use them to create nodes for peers
2003-10-17 21:58:39 +00:00
{
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
struct ath_softc *sc = ifp->if_softc;
u_int32_t rfilt;
o consolidate rx filter calculations in one place o enable beacon reception when operating in adhoc mode so the 802.11 layer can use them to create nodes for peers
2003-10-17 21:58:39 +00:00
/* configure rx filter */
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
rfilt = ath_calcrxfilter(sc);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ath_hal_setrxfilter(sc->sc_ah, rfilt);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
DPRINTF(sc, ATH_DEBUG_MODE, "%s: RX filter 0x%x\n", __func__, rfilt);
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
static void
ath_update_mcast(struct ifnet *ifp)
{
struct ath_softc *sc = ifp->if_softc;
u_int32_t mfilt[2];
o consolidate rx filter calculations in one place o enable beacon reception when operating in adhoc mode so the 802.11 layer can use them to create nodes for peers
2003-10-17 21:58:39 +00:00
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
/* calculate and install multicast filter */
if ((ifp->if_flags & IFF_ALLMULTI) == 0) {
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
struct ifmultiaddr *ifma;
/*
* Merge multicast addresses to form the hardware filter.
*/
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
mfilt[0] = mfilt[1] = 0;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
IF_ADDR_LOCK(ifp); /* XXX need some fiddling to remove? */
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
caddr_t dl;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
u_int32_t val;
u_int8_t pos;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
/* calculate XOR of eight 6bit values */
dl = LLADDR((struct sockaddr_dl *) ifma->ifma_addr);
val = LE_READ_4(dl + 0);
pos = (val >> 18) ^ (val >> 12) ^ (val >> 6) ^ val;
val = LE_READ_4(dl + 3);
pos ^= (val >> 18) ^ (val >> 12) ^ (val >> 6) ^ val;
pos &= 0x3f;
mfilt[pos / 32] |= (1 << (pos % 32));
}
Modify device drivers supporting multicast addresses to lock if_addr_mtx over iteration of their multicast address lists when synchronizing the hardware address filter with the network stack-maintained list. Problem reported by: Ed Maste (emaste at phaedrus dot sandvine dot ca> MFC after: 1 week
2005-08-03 00:18:35 +00:00
IF_ADDR_UNLOCK(ifp);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
} else
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
mfilt[0] = mfilt[1] = ~0;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ath_hal_setmcastfilter(sc->sc_ah, mfilt[0], mfilt[1]);
DPRINTF(sc, ATH_DEBUG_MODE, "%s: MC filter %08x:%08x\n",
__func__, mfilt[0], mfilt[1]);
}
static void
ath_mode_init(struct ath_softc *sc)
{
struct ifnet *ifp = sc->sc_ifp;
struct ieee80211com *ic = ifp->if_l2com;
struct ath_hal *ah = sc->sc_ah;
u_int32_t rfilt;
/* configure rx filter */
rfilt = ath_calcrxfilter(sc);
ath_hal_setrxfilter(ah, rfilt);
/* configure operational mode */
ath_hal_setopmode(ah);
/*
* Handle any link-level address change. Note that we only
* need to force ic_myaddr; any other addresses are handled
* as a byproduct of the ifnet code marking the interface
* down then up.
*
* XXX should get from lladdr instead of arpcom but that's more work
*/
IEEE80211_ADDR_COPY(ic->ic_myaddr, IF_LLADDR(ifp));
ath_hal_setmac(ah, ic->ic_myaddr);
/* calculate and install multicast filter */
ath_update_mcast(ifp);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* Set the slot time based on the current setting.
*/
static void
ath_setslottime(struct ath_softc *sc)
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
{
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
struct ieee80211com *ic = sc->sc_ifp->if_l2com;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
struct ath_hal *ah = sc->sc_ah;
Add half/quarter rate 11a channel support: o change handling of regdomain-related mib knobs so they can be set post-attach: regdomain, countrycode, outdoor, and xchanmode; the hal will not permit changing the regdomain but we expose it for now o on regdomain/countrycode change recalculate the channel list and push it to the net80211 layer (NB: looks to need more tweaking) o setup rate tables for half/quarter rate channels o honor half/quarter rate channel configs when changing channels o honor half/quarter rate channel configs when setting the slot time o use hack/nonstandard channel numbering scheme for the public safety band to avoid overlapping 2.4G channels on dual-band cards o remove setup of ic_sup_rates; the net80211 layer can do this for us and it simplifies handling of half/quarter rate channels Tested only in Public Safety Band with cards that have RF5112.
2006-12-27 19:07:09 +00:00
u_int usec;
Update with last year of work.
2004-12-08 17:34:36 +00:00
Add initial support for 900MHz cards like the Ubiquiti SR9: o eliminate assumptions that half/quarter rate channels on exist in 11a o handle frequency mapping between hal and net80211; hal gives us freq's in the range 2422..2437 that we remap MFC after: 1 month
2007-01-15 01:15:57 +00:00
if (IEEE80211_IS_CHAN_HALF(ic->ic_curchan))
usec = 13;
else if (IEEE80211_IS_CHAN_QUARTER(ic->ic_curchan))
usec = 21;
else if (IEEE80211_IS_CHAN_ANYG(ic->ic_curchan)) {
/* honor short/long slot time only in 11g */
/* XXX shouldn't honor on pure g or turbo g channel */
if (ic->ic_flags & IEEE80211_F_SHSLOT)
Add half/quarter rate 11a channel support: o change handling of regdomain-related mib knobs so they can be set post-attach: regdomain, countrycode, outdoor, and xchanmode; the hal will not permit changing the regdomain but we expose it for now o on regdomain/countrycode change recalculate the channel list and push it to the net80211 layer (NB: looks to need more tweaking) o setup rate tables for half/quarter rate channels o honor half/quarter rate channel configs when changing channels o honor half/quarter rate channel configs when setting the slot time o use hack/nonstandard channel numbering scheme for the public safety band to avoid overlapping 2.4G channels on dual-band cards o remove setup of ic_sup_rates; the net80211 layer can do this for us and it simplifies handling of half/quarter rate channels Tested only in Public Safety Band with cards that have RF5112.
2006-12-27 19:07:09 +00:00
usec = HAL_SLOT_TIME_9;
Add initial support for 900MHz cards like the Ubiquiti SR9: o eliminate assumptions that half/quarter rate channels on exist in 11a o handle frequency mapping between hal and net80211; hal gives us freq's in the range 2422..2437 that we remap MFC after: 1 month
2007-01-15 01:15:57 +00:00
else
usec = HAL_SLOT_TIME_20;
} else
Add half/quarter rate 11a channel support: o change handling of regdomain-related mib knobs so they can be set post-attach: regdomain, countrycode, outdoor, and xchanmode; the hal will not permit changing the regdomain but we expose it for now o on regdomain/countrycode change recalculate the channel list and push it to the net80211 layer (NB: looks to need more tweaking) o setup rate tables for half/quarter rate channels o honor half/quarter rate channel configs when changing channels o honor half/quarter rate channel configs when setting the slot time o use hack/nonstandard channel numbering scheme for the public safety band to avoid overlapping 2.4G channels on dual-band cards o remove setup of ic_sup_rates; the net80211 layer can do this for us and it simplifies handling of half/quarter rate channels Tested only in Public Safety Band with cards that have RF5112.
2006-12-27 19:07:09 +00:00
usec = HAL_SLOT_TIME_9;
DPRINTF(sc, ATH_DEBUG_RESET,
"%s: chan %u MHz flags 0x%x %s slot, %u usec\n",
__func__, ic->ic_curchan->ic_freq, ic->ic_curchan->ic_flags,
ic->ic_flags & IEEE80211_F_SHSLOT ? "short" : "long", usec);
ath_hal_setslottime(ah, usec);
Update with last year of work.
2004-12-08 17:34:36 +00:00
sc->sc_updateslot = OK;
}
/*
* Callback from the 802.11 layer to update the
* slot time based on the current setting.
*/
static void
ath_updateslot(struct ifnet *ifp)
{
struct ath_softc *sc = ifp->if_softc;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
struct ieee80211com *ic = ifp->if_l2com;
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* When not coordinating the BSS, change the hardware
* immediately. For other operation we defer the change
* until beacon updates have propagated to the stations.
*/
if (ic->ic_opmode == IEEE80211_M_HOSTAP)
sc->sc_updateslot = UPDATE;
else
ath_setslottime(sc);
}
setup the beacon xmit queue to not interrupt; we don't use them and they make the led's flash unnecessarily in adhoc mode
2005-01-18 19:10:17 +00:00
/*
* Setup a h/w transmit queue for beacons.
*/
static int
ath_beaconq_setup(struct ath_hal *ah)
{
HAL_TXQ_INFO qi;
memset(&qi, 0, sizeof(qi));
qi.tqi_aifs = HAL_TXQ_USEDEFAULT;
qi.tqi_cwmin = HAL_TXQ_USEDEFAULT;
qi.tqi_cwmax = HAL_TXQ_USEDEFAULT;
Set the correct IFS parameters for the beacon tx queue when operating in ap and adhoc modes.
2005-06-07 00:12:40 +00:00
/* NB: for dynamic turbo, don't enable any other interrupts */
Update for rev 0.9.16.16 hal: o add dfs+radar hooks; DFS is presently disabled in the hal o channel and mode handling changes o various api changes o be more aggressive about iq calibration settling so ap mode operation is better immediately after startup o rfkill/rfsilent sysctl support o tpc ack/cts sysctl support MFC after: 2 weeks
2006-02-10 19:07:08 +00:00
qi.tqi_qflags = HAL_TXQ_TXDESCINT_ENABLE;
setup the beacon xmit queue to not interrupt; we don't use them and they make the led's flash unnecessarily in adhoc mode
2005-01-18 19:10:17 +00:00
return ath_hal_setuptxqueue(ah, HAL_TX_QUEUE_BEACON, &qi);
}
Set the correct IFS parameters for the beacon tx queue when operating in ap and adhoc modes.
2005-06-07 00:12:40 +00:00
/*
* Setup the transmit queue parameters for the beacon queue.
*/
static int
ath_beaconq_config(struct ath_softc *sc)
{
#define ATH_EXPONENT_TO_VALUE(v) ((1<<(v))-1)
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
struct ieee80211com *ic = sc->sc_ifp->if_l2com;
Set the correct IFS parameters for the beacon tx queue when operating in ap and adhoc modes.
2005-06-07 00:12:40 +00:00
struct ath_hal *ah = sc->sc_ah;
HAL_TXQ_INFO qi;
ath_hal_gettxqueueprops(ah, sc->sc_bhalq, &qi);
if (ic->ic_opmode == IEEE80211_M_HOSTAP) {
/*
* Always burst out beacon and CAB traffic.
*/
qi.tqi_aifs = ATH_BEACON_AIFS_DEFAULT;
qi.tqi_cwmin = ATH_BEACON_CWMIN_DEFAULT;
qi.tqi_cwmax = ATH_BEACON_CWMAX_DEFAULT;
} else {
struct wmeParams *wmep =
&ic->ic_wme.wme_chanParams.cap_wmeParams[WME_AC_BE];
/*
* Adhoc mode; important thing is to use 2x cwmin.
*/
qi.tqi_aifs = wmep->wmep_aifsn;
qi.tqi_cwmin = 2*ATH_EXPONENT_TO_VALUE(wmep->wmep_logcwmin);
qi.tqi_cwmax = ATH_EXPONENT_TO_VALUE(wmep->wmep_logcwmax);
}
if (!ath_hal_settxqueueprops(ah, sc->sc_bhalq, &qi)) {
device_printf(sc->sc_dev, "unable to update parameters for "
"beacon hardware queue!\n");
return 0;
} else {
ath_hal_resettxqueue(ah, sc->sc_bhalq); /* push to h/w */
return 1;
}
#undef ATH_EXPONENT_TO_VALUE
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* Allocate and setup an initial beacon frame.
*/
static int
ath_beacon_alloc(struct ath_softc *sc, struct ieee80211_node *ni)
{
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
struct ieee80211vap *vap = ni->ni_vap;
struct ath_vap *avp = ATH_VAP(vap);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
struct ath_buf *bf;
struct mbuf *m;
Update with last year of work.
2004-12-08 17:34:36 +00:00
int error;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
bf = avp->av_bcbuf;
if (bf->bf_m != NULL) {
bus_dmamap_unload(sc->sc_dmat, bf->bf_dmamap);
m_freem(bf->bf_m);
bf->bf_m = NULL;
Update with last year of work.
2004-12-08 17:34:36 +00:00
}
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if (bf->bf_node != NULL) {
ieee80211_free_node(bf->bf_node);
bf->bf_node = NULL;
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
/*
* NB: the beacon data buffer must be 32-bit aligned;
* we assume the mbuf routines will return us something
* with this alignment (perhaps should assert).
*/
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
m = ieee80211_beacon_alloc(ni, &avp->av_boff);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
if (m == NULL) {
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
device_printf(sc->sc_dev, "%s: cannot get mbuf\n", __func__);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
sc->sc_stats.ast_be_nombuf++;
return ENOMEM;
}
switch to use bus_dmamap_load_mbuf_sg
2005-01-24 19:51:59 +00:00
error = bus_dmamap_load_mbuf_sg(sc->sc_dmat, bf->bf_dmamap, m,
bf->bf_segs, &bf->bf_nseg,
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
BUS_DMA_NOWAIT);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if (error != 0) {
device_printf(sc->sc_dev,
"%s: cannot map mbuf, bus_dmamap_load_mbuf_sg returns %d\n",
__func__, error);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
m_freem(m);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
return error;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
/*
* Calculate a TSF adjustment factor required for staggered
* beacons. Note that we assume the format of the beacon
* frame leaves the tstamp field immediately following the
* header.
*/
if (sc->sc_stagbeacons && avp->av_bslot > 0) {
uint64_t tsfadjust;
struct ieee80211_frame *wh;
/*
* The beacon interval is in TU's; the TSF is in usecs.
* We figure out how many TU's to add to align the timestamp
* then convert to TSF units and handle byte swapping before
* inserting it in the frame. The hardware will then add this
* each time a beacon frame is sent. Note that we align vap's
* 1..N and leave vap 0 untouched. This means vap 0 has a
* timestamp in one beacon interval while the others get a
* timstamp aligned to the next interval.
*/
tsfadjust = ni->ni_intval *
(ATH_BCBUF - avp->av_bslot) / ATH_BCBUF;
tsfadjust = htole64(tsfadjust << 10); /* TU -> TSF */
DPRINTF(sc, ATH_DEBUG_BEACON,
"%s: %s beacons bslot %d intval %u tsfadjust %llu\n",
__func__, sc->sc_stagbeacons ? "stagger" : "burst",
fix compilation on 64-bit platform w/ ATH_DEBUG
2008-09-21 00:30:33 +00:00
avp->av_bslot, ni->ni_intval,
(long long unsigned) le64toh(tsfadjust));
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
wh = mtod(m, struct ieee80211_frame *);
memcpy(&wh[1], &tsfadjust, sizeof(tsfadjust));
}
bf->bf_m = m;
bf->bf_node = ieee80211_ref_node(ni);
return 0;
Update with last year of work.
2004-12-08 17:34:36 +00:00
}
/*
* Setup the beacon frame for transmit.
*/
static void
ath_beacon_setup(struct ath_softc *sc, struct ath_buf *bf)
{
#define USE_SHPREAMBLE(_ic) \
(((_ic)->ic_flags & (IEEE80211_F_SHPREAMBLE | IEEE80211_F_USEBARKER))\
== IEEE80211_F_SHPREAMBLE)
struct ieee80211_node *ni = bf->bf_node;
struct ieee80211com *ic = ni->ni_ic;
struct mbuf *m = bf->bf_m;
struct ath_hal *ah = sc->sc_ah;
struct ath_desc *ds;
int flags, antenna;
move mgt frame tx rate responsibility from the rate control modules to the driver; this avoids redundant logic and will be necessary for future additions MFC after: 2 weeks
2006-02-09 20:49:55 +00:00
const HAL_RATE_TABLE *rt;
u_int8_t rix, rate;
Update with last year of work.
2004-12-08 17:34:36 +00:00
Improve ath_draintxq debug info: dump the packet as well as the descriptor and handle the beacon q like other q's MFC after: 1 month
2006-04-16 18:24:27 +00:00
DPRINTF(sc, ATH_DEBUG_BEACON_PROC, "%s: m %p len %u\n",
Update with last year of work.
2004-12-08 17:34:36 +00:00
__func__, m, m->m_len);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
/* setup descriptors */
ds = bf->bf_desc;
Update with last year of work.
2004-12-08 17:34:36 +00:00
flags = HAL_TXDESC_NOACK;
if (ic->ic_opmode == IEEE80211_M_IBSS && sc->sc_hasveol) {
ds->ds_link = bf->bf_daddr; /* self-linked */
flags |= HAL_TXDESC_VEOL;
/*
* Let hardware handle antenna switching.
*/
o move ath_sysctlattach down so variables it depends on are setup o use any fixed tx antenna for beacons transmitted in adhoc mode Submitted by: David Young MFC after: 3 days
2005-07-23 05:34:29 +00:00
antenna = sc->sc_txantenna;
Update with last year of work.
2004-12-08 17:34:36 +00:00
} else {
ds->ds_link = 0;
/*
* Switch antenna every 4 beacons.
* XXX assumes two antenna
*/
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if (sc->sc_txantenna != 0)
antenna = sc->sc_txantenna;
else if (sc->sc_stagbeacons && sc->sc_nbcnvaps != 0)
antenna = ((sc->sc_stats.ast_be_xmit / sc->sc_nbcnvaps) & 4 ? 2 : 1);
else
antenna = (sc->sc_stats.ast_be_xmit & 4 ? 2 : 1);
Update with last year of work.
2004-12-08 17:34:36 +00:00
}
KASSERT(bf->bf_nseg == 1,
("multi-segment beacon frame; nseg %u", bf->bf_nseg));
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
ds->ds_data = bf->bf_segs[0].ds_addr;
/*
* Calculate rate code.
* XXX everything at min xmit rate
*/
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
rix = 0;
move mgt frame tx rate responsibility from the rate control modules to the driver; this avoids redundant logic and will be necessary for future additions MFC after: 2 weeks
2006-02-09 20:49:55 +00:00
rt = sc->sc_currates;
rate = rt->info[rix].rateCode;
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (USE_SHPREAMBLE(ic))
move mgt frame tx rate responsibility from the rate control modules to the driver; this avoids redundant logic and will be necessary for future additions MFC after: 2 weeks
2006-02-09 20:49:55 +00:00
rate |= rt->info[rix].shortPreamble;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
ath_hal_setuptxdesc(ah, ds
Update with last year of work.
2004-12-08 17:34:36 +00:00
, m->m_len + IEEE80211_CRC_LEN /* frame length */
, sizeof(struct ieee80211_frame)/* header length */
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
, HAL_PKT_TYPE_BEACON /* Atheros packet type */
Update with last year of work.
2004-12-08 17:34:36 +00:00
, ni->ni_txpower /* txpower XXX */
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
, rate, 1 /* series 0 rate/tries */
, HAL_TXKEYIX_INVALID /* no encryption */
Update with last year of work.
2004-12-08 17:34:36 +00:00
, antenna /* antenna mode */
, flags /* no ack, veol for beacons */
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
, 0 /* rts/cts rate */
, 0 /* rts/cts duration */
);
/* NB: beacon's BufLen must be a multiple of 4 bytes */
ath_hal_filltxdesc(ah, ds
Update with last year of work.
2004-12-08 17:34:36 +00:00
, roundup(m->m_len, 4) /* buffer length */
, AH_TRUE /* first segment */
, AH_TRUE /* last segment */
, ds /* first descriptor */
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
#if 0
ath_desc_swap(ds);
#endif
Update with last year of work.
2004-12-08 17:34:36 +00:00
#undef USE_SHPREAMBLE
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Update beacon handling to sync w/ vap code base: o add driver callback to handle notification of beacon changes; this is required for devices that manage beacon frames themselves (devices must override the default handler which does nothing) o move beacon update-related flags from ieee80211com to the beacon offsets storage (or handle however a driver wants) o expand beacon offsets structure with members needed for 11h/dfs and appie's o change calling convention for ieee80211_beacon_alloc and ieee80211_beacon_update o add overlapping bss support for 11g; requires driver to pass beacon frames from overlapping bss up to net80211 which is not presently done by any driver o move HT beacon contents update to a routine in the HT code area Reviewed by: avatar, thompsa, sephe Approved by: re (blanket wireless)
2007-09-17 19:07:24 +00:00
static void
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ath_beacon_update(struct ieee80211vap *vap, int item)
Update beacon handling to sync w/ vap code base: o add driver callback to handle notification of beacon changes; this is required for devices that manage beacon frames themselves (devices must override the default handler which does nothing) o move beacon update-related flags from ieee80211com to the beacon offsets storage (or handle however a driver wants) o expand beacon offsets structure with members needed for 11h/dfs and appie's o change calling convention for ieee80211_beacon_alloc and ieee80211_beacon_update o add overlapping bss support for 11g; requires driver to pass beacon frames from overlapping bss up to net80211 which is not presently done by any driver o move HT beacon contents update to a routine in the HT code area Reviewed by: avatar, thompsa, sephe Approved by: re (blanket wireless)
2007-09-17 19:07:24 +00:00
{
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
struct ieee80211_beacon_offsets *bo = &ATH_VAP(vap)->av_boff;
Update beacon handling to sync w/ vap code base: o add driver callback to handle notification of beacon changes; this is required for devices that manage beacon frames themselves (devices must override the default handler which does nothing) o move beacon update-related flags from ieee80211com to the beacon offsets storage (or handle however a driver wants) o expand beacon offsets structure with members needed for 11h/dfs and appie's o change calling convention for ieee80211_beacon_alloc and ieee80211_beacon_update o add overlapping bss support for 11g; requires driver to pass beacon frames from overlapping bss up to net80211 which is not presently done by any driver o move HT beacon contents update to a routine in the HT code area Reviewed by: avatar, thompsa, sephe Approved by: re (blanket wireless)
2007-09-17 19:07:24 +00:00
setbit(bo->bo_flags, item);
}
Close race in handling mcast traffic when operating as an ap with stations in power save: add a new q where mcast frames are stashed and on beacon update (at DTIM) move frames from the mcast q to the cabq and start it. This ensures the cabq is only manipulated in one place. Sponsored by: Hobnob MFC after: 2 weeks
2006-06-26 03:10:45 +00:00
/*
* Append the contents of src to dst; both queues
* are assumed to be locked.
*/
static void
ath_txqmove(struct ath_txq *dst, struct ath_txq *src)
{
STAILQ_CONCAT(&dst->axq_q, &src->axq_q);
dst->axq_link = src->axq_link;
src->axq_link = NULL;
dst->axq_depth += src->axq_depth;
src->axq_depth = 0;
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* Transmit a beacon frame at SWBA. Dynamic updates to the
* frame contents are done as needed and the slot time is
* also adjusted based on current state.
*/
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
static void
ath_beacon_proc(void *arg, int pending)
{
struct ath_softc *sc = arg;
struct ath_hal *ah = sc->sc_ah;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
struct ieee80211vap *vap;
struct ath_buf *bf;
int slot, otherant;
uint32_t bfaddr;
Update with last year of work.
2004-12-08 17:34:36 +00:00
DPRINTF(sc, ATH_DEBUG_BEACON_PROC, "%s: pending %u\n",
__func__, pending);
/*
* Check if the previous beacon has gone out. If
fixup comments
2006-02-15 18:15:49 +00:00
* not don't try to post another, skip this period
* and wait for the next. Missed beacons indicate
* a problem and should not occur. If we miss too
* many consecutive beacons reset the device.
Update with last year of work.
2004-12-08 17:34:36 +00:00
*/
if (ath_hal_numtxpending(ah, sc->sc_bhalq) != 0) {
sc->sc_bmisscount++;
Improve ath_draintxq debug info: dump the packet as well as the descriptor and handle the beacon q like other q's MFC after: 1 month
2006-04-16 18:24:27 +00:00
DPRINTF(sc, ATH_DEBUG_BEACON,
Update with last year of work.
2004-12-08 17:34:36 +00:00
"%s: missed %u consecutive beacons\n",
__func__, sc->sc_bmisscount);
if (sc->sc_bmisscount > 3) /* NB: 3 is a guess */
use a private task queue thread MFC after: 2 weeks
2006-02-09 21:48:51 +00:00
taskqueue_enqueue(sc->sc_tq, &sc->sc_bstucktask);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
return;
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (sc->sc_bmisscount != 0) {
DPRINTF(sc, ATH_DEBUG_BEACON,
"%s: resume beacon xmit after %u misses\n",
__func__, sc->sc_bmisscount);
sc->sc_bmisscount = 0;
}
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if (sc->sc_stagbeacons) { /* staggered beacons */
struct ieee80211com *ic = sc->sc_ifp->if_l2com;
uint32_t tsftu;
tsftu = ath_hal_gettsf32(ah) >> 10;
/* XXX lintval */
slot = ((tsftu % ic->ic_lintval) * ATH_BCBUF) / ic->ic_lintval;
vap = sc->sc_bslot[(slot+1) % ATH_BCBUF];
bfaddr = 0;
if (vap != NULL && vap->iv_state == IEEE80211_S_RUN) {
bf = ath_beacon_generate(sc, vap);
if (bf != NULL)
bfaddr = bf->bf_daddr;
Update with last year of work.
2004-12-08 17:34:36 +00:00
}
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
} else { /* burst'd beacons */
uint32_t *bflink = &bfaddr;
for (slot = 0; slot < ATH_BCBUF; slot++) {
vap = sc->sc_bslot[slot];
if (vap != NULL && vap->iv_state == IEEE80211_S_RUN) {
bf = ath_beacon_generate(sc, vap);
if (bf != NULL) {
*bflink = bf->bf_daddr;
bflink = &bf->bf_desc->ds_link;
}
}
}
*bflink = 0; /* terminate list */
Close race in handling mcast traffic when operating as an ap with stations in power save: add a new q where mcast frames are stashed and on beacon update (at DTIM) move frames from the mcast q to the cabq and start it. This ensures the cabq is only manipulated in one place. Sponsored by: Hobnob MFC after: 2 weeks
2006-06-26 03:10:45 +00:00
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* Handle slot time change when a non-ERP station joins/leaves
* an 11g network. The 802.11 layer notifies us via callback,
* we mark updateslot, then wait one beacon before effecting
* the change. This gives associated stations at least one
* beacon interval to note the state change.
*/
/* XXX locking */
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if (sc->sc_updateslot == UPDATE) {
Update with last year of work.
2004-12-08 17:34:36 +00:00
sc->sc_updateslot = COMMIT; /* commit next beacon */
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
sc->sc_slotupdate = slot;
} else if (sc->sc_updateslot == COMMIT && sc->sc_slotupdate == slot)
Update with last year of work.
2004-12-08 17:34:36 +00:00
ath_setslottime(sc); /* commit change to h/w */
/*
* Check recent per-antenna transmit statistics and flip
* the default antenna if noticeably more frames went out
* on the non-default antenna.
* XXX assumes 2 anntenae
*/
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if (!sc->sc_diversity && (!sc->sc_stagbeacons || slot == 0)) {
otherant = sc->sc_defant & 1 ? 2 : 1;
if (sc->sc_ant_tx[otherant] > sc->sc_ant_tx[sc->sc_defant] + 2)
ath_setdefantenna(sc, otherant);
sc->sc_ant_tx[1] = sc->sc_ant_tx[2] = 0;
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if (bfaddr != 0) {
/*
* Stop any current dma and put the new frame on the queue.
* This should never fail since we check above that no frames
* are still pending on the queue.
*/
if (!ath_hal_stoptxdma(ah, sc->sc_bhalq)) {
DPRINTF(sc, ATH_DEBUG_ANY,
"%s: beacon queue %u did not stop?\n",
__func__, sc->sc_bhalq);
}
/* NB: cabq traffic should already be queued and primed */
ath_hal_puttxbuf(ah, sc->sc_bhalq, bfaddr);
ath_hal_txstart(ah, sc->sc_bhalq);
sc->sc_stats.ast_be_xmit++;
}
}
static struct ath_buf *
ath_beacon_generate(struct ath_softc *sc, struct ieee80211vap *vap)
{
struct ath_vap *avp = ATH_VAP(vap);
struct ath_txq *cabq = sc->sc_cabq;
struct ath_buf *bf;
struct mbuf *m;
int nmcastq, error;
KASSERT(vap->iv_state == IEEE80211_S_RUN,
("not running, state %d", vap->iv_state));
KASSERT(avp->av_bcbuf != NULL, ("no beacon buffer"));
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
* Update dynamic beacon contents. If this returns
* non-zero then we need to remap the memory because
* the beacon frame changed size (probably because
* of the TIM bitmap).
Update with last year of work.
2004-12-08 17:34:36 +00:00
*/
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
bf = avp->av_bcbuf;
m = bf->bf_m;
nmcastq = avp->av_mcastq.axq_depth;
if (ieee80211_beacon_update(bf->bf_node, &avp->av_boff, m, nmcastq)) {
/* XXX too conservative? */
bus_dmamap_unload(sc->sc_dmat, bf->bf_dmamap);
error = bus_dmamap_load_mbuf_sg(sc->sc_dmat, bf->bf_dmamap, m,
bf->bf_segs, &bf->bf_nseg,
BUS_DMA_NOWAIT);
if (error != 0) {
if_printf(vap->iv_ifp,
"%s: bus_dmamap_load_mbuf_sg failed, error %u\n",
__func__, error);
return NULL;
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if ((avp->av_boff.bo_tim[4] & 1) && cabq->axq_depth) {
DPRINTF(sc, ATH_DEBUG_BEACON,
"%s: cabq did not drain, mcastq %u cabq %u\n",
__func__, nmcastq, cabq->axq_depth);
sc->sc_stats.ast_cabq_busy++;
if (sc->sc_nvaps > 1 && sc->sc_stagbeacons) {
/*
* CABQ traffic from a previous vap is still pending.
* We must drain the q before this beacon frame goes
* out as otherwise this vap's stations will get cab
* frames from a different vap.
* XXX could be slow causing us to miss DBA
*/
ath_tx_draintxq(sc, cabq);
}
}
ath_beacon_setup(sc, bf);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
bus_dmamap_sync(sc->sc_dmat, bf->bf_dmamap, BUS_DMASYNC_PREWRITE);
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* Enable the CAB queue before the beacon queue to
* insure cab frames are triggered by this beacon.
*/
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if (avp->av_boff.bo_tim[4] & 1) {
struct ath_hal *ah = sc->sc_ah;
check tim is present in the beacon before defer'ing the mcast buffer bit; insures we don't do this when operating in adhoc mode Submitted by: avatar@ MFC after: 1 week
2006-07-26 03:48:41 +00:00
/* NB: only at DTIM */
Close race in handling mcast traffic when operating as an ap with stations in power save: add a new q where mcast frames are stashed and on beacon update (at DTIM) move frames from the mcast q to the cabq and start it. This ensures the cabq is only manipulated in one place. Sponsored by: Hobnob MFC after: 2 weeks
2006-06-26 03:10:45 +00:00
ATH_TXQ_LOCK(cabq);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ATH_TXQ_LOCK(&avp->av_mcastq);
Close race in handling mcast traffic when operating as an ap with stations in power save: add a new q where mcast frames are stashed and on beacon update (at DTIM) move frames from the mcast q to the cabq and start it. This ensures the cabq is only manipulated in one place. Sponsored by: Hobnob MFC after: 2 weeks
2006-06-26 03:10:45 +00:00
if (nmcastq) {
struct ath_buf *bfm;
/*
* Move frames from the s/w mcast q to the h/w cab q.
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
* XXX MORE_DATA bit
Close race in handling mcast traffic when operating as an ap with stations in power save: add a new q where mcast frames are stashed and on beacon update (at DTIM) move frames from the mcast q to the cabq and start it. This ensures the cabq is only manipulated in one place. Sponsored by: Hobnob MFC after: 2 weeks
2006-06-26 03:10:45 +00:00
*/
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
bfm = STAILQ_FIRST(&avp->av_mcastq.axq_q);
Close race in handling mcast traffic when operating as an ap with stations in power save: add a new q where mcast frames are stashed and on beacon update (at DTIM) move frames from the mcast q to the cabq and start it. This ensures the cabq is only manipulated in one place. Sponsored by: Hobnob MFC after: 2 weeks
2006-06-26 03:10:45 +00:00
if (cabq->axq_link != NULL) {
*cabq->axq_link = bfm->bf_daddr;
} else
ath_hal_puttxbuf(ah, cabq->axq_qnum,
bfm->bf_daddr);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ath_txqmove(cabq, &avp->av_mcastq);
Close race in handling mcast traffic when operating as an ap with stations in power save: add a new q where mcast frames are stashed and on beacon update (at DTIM) move frames from the mcast q to the cabq and start it. This ensures the cabq is only manipulated in one place. Sponsored by: Hobnob MFC after: 2 weeks
2006-06-26 03:10:45 +00:00
sc->sc_stats.ast_cabq_xmit += nmcastq;
}
/* NB: gated by beacon so safe to start here */
ath_hal_txstart(ah, cabq->axq_qnum);
ATH_TXQ_UNLOCK(cabq);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ATH_TXQ_UNLOCK(&avp->av_mcastq);
Close race in handling mcast traffic when operating as an ap with stations in power save: add a new q where mcast frames are stashed and on beacon update (at DTIM) move frames from the mcast q to the cabq and start it. This ensures the cabq is only manipulated in one place. Sponsored by: Hobnob MFC after: 2 weeks
2006-06-26 03:10:45 +00:00
}
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
return bf;
}
static void
ath_beacon_start_adhoc(struct ath_softc *sc, struct ieee80211vap *vap)
{
struct ath_vap *avp = ATH_VAP(vap);
struct ath_hal *ah = sc->sc_ah;
struct ath_buf *bf;
struct mbuf *m;
int error;
KASSERT(avp->av_bcbuf != NULL, ("no beacon buffer"));
/*
* Update dynamic beacon contents. If this returns
* non-zero then we need to remap the memory because
* the beacon frame changed size (probably because
* of the TIM bitmap).
*/
bf = avp->av_bcbuf;
m = bf->bf_m;
if (ieee80211_beacon_update(bf->bf_node, &avp->av_boff, m, 0)) {
/* XXX too conservative? */
bus_dmamap_unload(sc->sc_dmat, bf->bf_dmamap);
error = bus_dmamap_load_mbuf_sg(sc->sc_dmat, bf->bf_dmamap, m,
bf->bf_segs, &bf->bf_nseg,
BUS_DMA_NOWAIT);
if (error != 0) {
if_printf(vap->iv_ifp,
"%s: bus_dmamap_load_mbuf_sg failed, error %u\n",
__func__, error);
return;
}
}
ath_beacon_setup(sc, bf);
bus_dmamap_sync(sc->sc_dmat, bf->bf_dmamap, BUS_DMASYNC_PREWRITE);
/* NB: caller is known to have already stopped tx dma */
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
ath_hal_puttxbuf(ah, sc->sc_bhalq, bf->bf_daddr);
ath_hal_txstart(ah, sc->sc_bhalq);
Update with last year of work.
2004-12-08 17:34:36 +00:00
}
/*
* Reset the hardware after detecting beacons have stopped.
*/
static void
ath_bstuck_proc(void *arg, int pending)
{
struct ath_softc *sc = arg;
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
struct ifnet *ifp = sc->sc_ifp;
Update with last year of work.
2004-12-08 17:34:36 +00:00
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if_printf(ifp, "stuck beacon; resetting (bmiss count %u)\n",
sc->sc_bmisscount);
ath_reset(ifp);
}
/*
* Reclaim beacon resources and return buffer to the pool.
*/
static void
ath_beacon_return(struct ath_softc *sc, struct ath_buf *bf)
{
if (bf->bf_m != NULL) {
bus_dmamap_unload(sc->sc_dmat, bf->bf_dmamap);
m_freem(bf->bf_m);
bf->bf_m = NULL;
}
if (bf->bf_node != NULL) {
ieee80211_free_node(bf->bf_node);
bf->bf_node = NULL;
}
STAILQ_INSERT_TAIL(&sc->sc_bbuf, bf, bf_list);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* Reclaim beacon resources.
*/
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
static void
ath_beacon_free(struct ath_softc *sc)
{
Update with last year of work.
2004-12-08 17:34:36 +00:00
struct ath_buf *bf;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
beacon handling fixups for adhoc mode: o don't reclaim any previous beacon state in ath_beacon_alloc; do it explicitly in ath_newstate o reference count the node held in the beacon frame state block o process ibss merge more intelligently; let the state machine do the right thing instead of explicitly setting the new bssi id o explicitly stop tx dma before doing beacon setup to handle the ibss merge case
2005-01-24 20:05:03 +00:00
STAILQ_FOREACH(bf, &sc->sc_bbuf, bf_list) {
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (bf->bf_m != NULL) {
bus_dmamap_unload(sc->sc_dmat, bf->bf_dmamap);
m_freem(bf->bf_m);
bf->bf_m = NULL;
beacon handling fixups for adhoc mode: o don't reclaim any previous beacon state in ath_beacon_alloc; do it explicitly in ath_newstate o reference count the node held in the beacon frame state block o process ibss merge more intelligently; let the state machine do the right thing instead of explicitly setting the new bssi id o explicitly stop tx dma before doing beacon setup to handle the ibss merge case
2005-01-24 20:05:03 +00:00
}
if (bf->bf_node != NULL) {
ieee80211_free_node(bf->bf_node);
Update with last year of work.
2004-12-08 17:34:36 +00:00
bf->bf_node = NULL;
}
beacon handling fixups for adhoc mode: o don't reclaim any previous beacon state in ath_beacon_alloc; do it explicitly in ath_newstate o reference count the node held in the beacon frame state block o process ibss merge more intelligently; let the state machine do the right thing instead of explicitly setting the new bssi id o explicitly stop tx dma before doing beacon setup to handle the ibss merge case
2005-01-24 20:05:03 +00:00
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
/*
* Configure the beacon and sleep timers.
*
* When operating as an AP this resets the TSF and sets
* up the hardware to notify us when we need to issue beacons.
*
* When operating in station mode this sets up the beacon
* timers according to the timestamp of the last received
* beacon and the current TSF, configures PCF and DTIM
* handling, programs the sleep registers so the hardware
* will wakeup in time to receive beacons, and configures
* the beacon miss handling so we'll receive a BMISS
* interrupt when we stop seeing beacons from the AP
* we've associated with.
*/
static void
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ath_beacon_config(struct ath_softc *sc, struct ieee80211vap *vap)
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
{
Beacon timer setup fixes: o pull nexttbtt forward in adhoc mode too o resync beacon timers on joining a bss or ibss as the tstamp we collected while scanning is almost certainly out of date Note we may need to refine the ibss mode check in ath_recv_mgmt. Reviewed by: avatar, dyoung Obtained from: atheros MFC after: 2 weeks
2006-02-09 22:21:53 +00:00
#define TSF_TO_TU(_h,_l) \
((((u_int32_t)(_h)) << 22) | (((u_int32_t)(_l)) >> 10))
#define FUDGE 2
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
struct ath_hal *ah = sc->sc_ah;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
struct ieee80211com *ic = sc->sc_ifp->if_l2com;
struct ieee80211_node *ni;
Beacon timer setup fixes: o pull nexttbtt forward in adhoc mode too o resync beacon timers on joining a bss or ibss as the tstamp we collected while scanning is almost certainly out of date Note we may need to refine the ibss mode check in ath_recv_mgmt. Reviewed by: avatar, dyoung Obtained from: atheros MFC after: 2 weeks
2006-02-09 22:21:53 +00:00
u_int32_t nexttbtt, intval, tsftu;
u_int64_t tsf;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if (vap == NULL)
vap = TAILQ_FIRST(&ic->ic_vaps); /* XXX */
ni = vap->iv_bss;
Change station mode beacon timer setup to insure the calculated nextTbtt is always ahead of the h/w TSF. Reviewed by: avatar
2005-06-09 04:10:01 +00:00
/* extract tstamp from last beacon and convert to TU */
nexttbtt = TSF_TO_TU(LE_READ_4(ni->ni_tstamp.data + 4),
LE_READ_4(ni->ni_tstamp.data));
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if (ic->ic_opmode == IEEE80211_M_HOSTAP) {
/*
* For multi-bss ap support beacons are either staggered
* evenly over N slots or burst together. For the former
* arrange for the SWBA to be delivered for each slot.
* Slots that are not occupied will generate nothing.
*/
/* NB: the beacon interval is kept internally in TU's */
intval = ni->ni_intval & HAL_BEACON_PERIOD;
if (sc->sc_stagbeacons)
intval /= ATH_BCBUF;
} else {
/* NB: the beacon interval is kept internally in TU's */
intval = ni->ni_intval & HAL_BEACON_PERIOD;
}
Correct beacon timer setup logic: o lintval is in ms; must convert to TU's for passing to the hal o roundup to calculate nexttbtt (should look at current tsf and pull the calculated nextbtt forward but this'll do for now) o don't or- in HAL_BEACON_RESET_TSF when doing station timer setup; this is not needed and messes up the sleep timer calcs, though it's unclear if it mattered as the hal masks these values before use Submitted by: Thorsten von Eicken
2004-12-31 20:20:02 +00:00
if (nexttbtt == 0) /* e.g. for ap mode */
nexttbtt = intval;
else if (intval) /* NB: can be 0 for monitor mode */
nexttbtt = roundup(nexttbtt, intval);
DPRINTF(sc, ATH_DEBUG_BEACON, "%s: nexttbtt %u intval %u (%u)\n",
__func__, nexttbtt, intval, ni->ni_intval);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if (ic->ic_opmode == IEEE80211_M_STA && !sc->sc_swbmiss) {
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
HAL_BEACON_STATE bs;
Change station mode beacon timer setup to insure the calculated nextTbtt is always ahead of the h/w TSF. Reviewed by: avatar
2005-06-09 04:10:01 +00:00
int dtimperiod, dtimcount;
int cfpperiod, cfpcount;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Change station mode beacon timer setup to insure the calculated nextTbtt is always ahead of the h/w TSF. Reviewed by: avatar
2005-06-09 04:10:01 +00:00
/*
* Setup dtim and cfp parameters according to
* last beacon we received (which may be none).
*/
dtimperiod = ni->ni_dtim_period;
if (dtimperiod <= 0) /* NB: 0 if not known */
dtimperiod = 1;
dtimcount = ni->ni_dtim_count;
if (dtimcount >= dtimperiod) /* NB: sanity check */
dtimcount = 0; /* XXX? */
cfpperiod = 1; /* NB: no PCF support yet */
cfpcount = 0;
/*
* Pull nexttbtt forward to reflect the current
* TSF and calculate dtim+cfp state for the result.
*/
tsf = ath_hal_gettsf64(ah);
Beacon timer setup fixes: o pull nexttbtt forward in adhoc mode too o resync beacon timers on joining a bss or ibss as the tstamp we collected while scanning is almost certainly out of date Note we may need to refine the ibss mode check in ath_recv_mgmt. Reviewed by: avatar, dyoung Obtained from: atheros MFC after: 2 weeks
2006-02-09 22:21:53 +00:00
tsftu = TSF_TO_TU(tsf>>32, tsf) + FUDGE;
Change station mode beacon timer setup to insure the calculated nextTbtt is always ahead of the h/w TSF. Reviewed by: avatar
2005-06-09 04:10:01 +00:00
do {
nexttbtt += intval;
if (--dtimcount < 0) {
dtimcount = dtimperiod - 1;
if (--cfpcount < 0)
cfpcount = cfpperiod - 1;
}
} while (nexttbtt < tsftu);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
memset(&bs, 0, sizeof(bs));
Correct beacon timer setup logic: o lintval is in ms; must convert to TU's for passing to the hal o roundup to calculate nexttbtt (should look at current tsf and pull the calculated nextbtt forward but this'll do for now) o don't or- in HAL_BEACON_RESET_TSF when doing station timer setup; this is not needed and messes up the sleep timer calcs, though it's unclear if it mattered as the hal masks these values before use Submitted by: Thorsten von Eicken
2004-12-31 20:20:02 +00:00
bs.bs_intval = intval;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
bs.bs_nexttbtt = nexttbtt;
Change station mode beacon timer setup to insure the calculated nextTbtt is always ahead of the h/w TSF. Reviewed by: avatar
2005-06-09 04:10:01 +00:00
bs.bs_dtimperiod = dtimperiod*intval;
bs.bs_nextdtim = bs.bs_nexttbtt + dtimcount*intval;
bs.bs_cfpperiod = cfpperiod*bs.bs_dtimperiod;
bs.bs_cfpnext = bs.bs_nextdtim + cfpcount*bs.bs_dtimperiod;
bs.bs_cfpmaxduration = 0;
#if 0
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* The 802.11 layer records the offset to the DTIM
* bitmap while receiving beacons; use it here to
* enable h/w detection of our AID being marked in
* the bitmap vector (to indicate frames for us are
* pending at the AP).
Change station mode beacon timer setup to insure the calculated nextTbtt is always ahead of the h/w TSF. Reviewed by: avatar
2005-06-09 04:10:01 +00:00
* XXX do DTIM handling in s/w to WAR old h/w bugs
* XXX enable based on h/w rev for newer chips
Update with last year of work.
2004-12-08 17:34:36 +00:00
*/
bs.bs_timoffset = ni->ni_timoff;
Change station mode beacon timer setup to insure the calculated nextTbtt is always ahead of the h/w TSF. Reviewed by: avatar
2005-06-09 04:10:01 +00:00
#endif
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
/*
* Calculate the number of consecutive beacons to miss
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
* before taking a BMISS interrupt.
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
* Note that we clamp the result to at most 10 beacons.
*/
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
bs.bs_bmissthreshold = vap->iv_bmissthreshold;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
if (bs.bs_bmissthreshold > 10)
bs.bs_bmissthreshold = 10;
else if (bs.bs_bmissthreshold <= 0)
bs.bs_bmissthreshold = 1;
/*
* Calculate sleep duration. The configuration is
* given in ms. We insure a multiple of the beacon
* period is used. Also, if the sleep duration is
* greater than the DTIM period then it makes senses
* to make it a multiple of that.
*
* XXX fixed at 100ms
*/
o correct beacon interval calculation; the internal setting is in TU's not ms o replace the private macro to convert MS->TU with the common one
2005-01-24 19:45:59 +00:00
bs.bs_sleepduration =
roundup(IEEE80211_MS_TO_TU(100), bs.bs_intval);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
if (bs.bs_sleepduration > bs.bs_dtimperiod)
bs.bs_sleepduration = roundup(bs.bs_sleepduration, bs.bs_dtimperiod);
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
DPRINTF(sc, ATH_DEBUG_BEACON,
Change station mode beacon timer setup to insure the calculated nextTbtt is always ahead of the h/w TSF. Reviewed by: avatar
2005-06-09 04:10:01 +00:00
"%s: tsf %ju tsf:tu %u intval %u nexttbtt %u dtim %u nextdtim %u bmiss %u sleep %u cfp:period %u maxdur %u next %u timoffset %u\n"
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
, __func__
Change station mode beacon timer setup to insure the calculated nextTbtt is always ahead of the h/w TSF. Reviewed by: avatar
2005-06-09 04:10:01 +00:00
, tsf, tsftu
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
, bs.bs_intval
, bs.bs_nexttbtt
, bs.bs_dtimperiod
, bs.bs_nextdtim
, bs.bs_bmissthreshold
, bs.bs_sleepduration
Update with last year of work.
2004-12-08 17:34:36 +00:00
, bs.bs_cfpperiod
, bs.bs_cfpmaxduration
, bs.bs_cfpnext
, bs.bs_timoffset
);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
ath_hal_intrset(ah, 0);
Update with last year of work.
2004-12-08 17:34:36 +00:00
ath_hal_beacontimers(ah, &bs);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
sc->sc_imask |= HAL_INT_BMISS;
ath_hal_intrset(ah, sc->sc_imask);
} else {
ath_hal_intrset(ah, 0);
Correct beacon timer setup logic: o lintval is in ms; must convert to TU's for passing to the hal o roundup to calculate nexttbtt (should look at current tsf and pull the calculated nextbtt forward but this'll do for now) o don't or- in HAL_BEACON_RESET_TSF when doing station timer setup; this is not needed and messes up the sleep timer calcs, though it's unclear if it mattered as the hal masks these values before use Submitted by: Thorsten von Eicken
2004-12-31 20:20:02 +00:00
if (nexttbtt == intval)
Update with last year of work.
2004-12-08 17:34:36 +00:00
intval |= HAL_BEACON_RESET_TSF;
if (ic->ic_opmode == IEEE80211_M_IBSS) {
/*
* In IBSS mode enable the beacon timers but only
* enable SWBA interrupts if we need to manually
* prepare beacon frames. Otherwise we use a
* self-linked tx descriptor and let the hardware
* deal with things.
*/
intval |= HAL_BEACON_ENA;
if (!sc->sc_hasveol)
sc->sc_imask |= HAL_INT_SWBA;
Beacon timer setup fixes: o pull nexttbtt forward in adhoc mode too o resync beacon timers on joining a bss or ibss as the tstamp we collected while scanning is almost certainly out of date Note we may need to refine the ibss mode check in ath_recv_mgmt. Reviewed by: avatar, dyoung Obtained from: atheros MFC after: 2 weeks
2006-02-09 22:21:53 +00:00
if ((intval & HAL_BEACON_RESET_TSF) == 0) {
/*
* Pull nexttbtt forward to reflect
* the current TSF.
*/
tsf = ath_hal_gettsf64(ah);
tsftu = TSF_TO_TU(tsf>>32, tsf) + FUDGE;
do {
nexttbtt += intval;
} while (nexttbtt < tsftu);
}
Set the correct IFS parameters for the beacon tx queue when operating in ap and adhoc modes.
2005-06-07 00:12:40 +00:00
ath_beaconq_config(sc);
Update with last year of work.
2004-12-08 17:34:36 +00:00
} else if (ic->ic_opmode == IEEE80211_M_HOSTAP) {
/*
* In AP mode we enable the beacon timers and
* SWBA interrupts to prepare beacon frames.
*/
intval |= HAL_BEACON_ENA;
o remove bmisshack no longer needed with the BSSID fix in v0.9.5.2 of the hal o add monitor mode support o fix short preamble handling in beacon setup (noop) o correct resume handling
2003-08-02 06:14:15 +00:00
sc->sc_imask |= HAL_INT_SWBA; /* beacon prepare */
Set the correct IFS parameters for the beacon tx queue when operating in ap and adhoc modes.
2005-06-07 00:12:40 +00:00
ath_beaconq_config(sc);
Update with last year of work.
2004-12-08 17:34:36 +00:00
}
ath_hal_beaconinit(ah, nexttbtt, intval);
sc->sc_bmisscount = 0;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
ath_hal_intrset(ah, sc->sc_imask);
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* When using a self-linked beacon descriptor in
* ibss mode load it once here.
*/
if (ic->ic_opmode == IEEE80211_M_IBSS && sc->sc_hasveol)
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ath_beacon_start_adhoc(sc, vap);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Beacon timer setup fixes: o pull nexttbtt forward in adhoc mode too o resync beacon timers on joining a bss or ibss as the tstamp we collected while scanning is almost certainly out of date Note we may need to refine the ibss mode check in ath_recv_mgmt. Reviewed by: avatar, dyoung Obtained from: atheros MFC after: 2 weeks
2006-02-09 22:21:53 +00:00
sc->sc_syncbeacon = 0;
#undef FUDGE
Change station mode beacon timer setup to insure the calculated nextTbtt is always ahead of the h/w TSF. Reviewed by: avatar
2005-06-09 04:10:01 +00:00
#undef TSF_TO_TU
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
static void
ath_load_cb(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
{
bus_addr_t *paddr = (bus_addr_t*) arg;
cleanup some assertions
2004-12-31 20:11:23 +00:00
KASSERT(error == 0, ("error %u on bus_dma callback", error));
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
*paddr = segs->ds_addr;
}
static int
Update with last year of work.
2004-12-08 17:34:36 +00:00
ath_descdma_setup(struct ath_softc *sc,
struct ath_descdma *dd, ath_bufhead *head,
const char *name, int nbuf, int ndesc)
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
{
Update with last year of work.
2004-12-08 17:34:36 +00:00
#define DS2PHYS(_dd, _ds) \
((_dd)->dd_desc_paddr + ((caddr_t)(_ds) - (caddr_t)(_dd)->dd_desc))
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
struct ifnet *ifp = sc->sc_ifp;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
struct ath_desc *ds;
struct ath_buf *bf;
Update with last year of work.
2004-12-08 17:34:36 +00:00
int i, bsize, error;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
DPRINTF(sc, ATH_DEBUG_RESET, "%s: %s DMA: %u buffers %u desc/buf\n",
__func__, name, nbuf, ndesc);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
dd->dd_name = name;
dd->dd_desc_len = sizeof(struct ath_desc) * nbuf * ndesc;
/*
* Setup DMA descriptor area.
*/
Change the remainder of the drivers for DMA'ing devices enabled in the sparc64 GENERIC and the sound device drivers known working on sparc64 to use bus_get_dma_tag() to obtain the parent DMA tag so we can get rid of the sparc64_root_dma_tag kludge eventually. Except for ath(4), sk(4), stge(4) and ti(4) these changes are runtime tested (unless I booted up the wrong kernels again...).
2007-01-21 19:32:51 +00:00
error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), /* parent */
Update with last year of work.
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PAGE_SIZE, 0, /* alignment, bounds */
BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
dd->dd_desc_len, /* maxsize */
1, /* nsegments */
quiet tindexbox complaints about passing BUS_SPACE_MAXADDR as a bus_size_t to bus_dma_tag_create; when PAE is enabled this does not work Cluebat by: scottl MFC after: 2 weeks
2006-05-08 20:11:09 +00:00
dd->dd_desc_len, /* maxsegsize */
Update with last year of work.
2004-12-08 17:34:36 +00:00
BUS_DMA_ALLOCNOW, /* flags */
NULL, /* lockfunc */
NULL, /* lockarg */
&dd->dd_dmat);
if (error != 0) {
if_printf(ifp, "cannot allocate %s DMA tag\n", dd->dd_name);
return error;
}
/* allocate descriptors */
error = bus_dmamap_create(dd->dd_dmat, BUS_DMA_NOWAIT, &dd->dd_dmamap);
if (error != 0) {
if_printf(ifp, "unable to create dmamap for %s descriptors, "
"error %u\n", dd->dd_name, error);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
goto fail0;
Update with last year of work.
2004-12-08 17:34:36 +00:00
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
error = bus_dmamem_alloc(dd->dd_dmat, (void**) &dd->dd_desc,
mark tx/rx descriptors COHERENT; we do not sync changes so on architectures like arm this is necessary MFC after: 1 month
2006-11-24 22:45:26 +00:00
BUS_DMA_NOWAIT | BUS_DMA_COHERENT,
&dd->dd_dmamap);
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (error != 0) {
if_printf(ifp, "unable to alloc memory for %u %s descriptors, "
"error %u\n", nbuf * ndesc, dd->dd_name, error);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
goto fail1;
Update with last year of work.
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}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
error = bus_dmamap_load(dd->dd_dmat, dd->dd_dmamap,
dd->dd_desc, dd->dd_desc_len,
ath_load_cb, &dd->dd_desc_paddr,
BUS_DMA_NOWAIT);
if (error != 0) {
if_printf(ifp, "unable to map %s descriptors, error %u\n",
dd->dd_name, error);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
goto fail2;
Update with last year of work.
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}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
ds = dd->dd_desc;
DPRINTF(sc, ATH_DEBUG_RESET, "%s: %s DMA map: %p (%lu) -> %p (%lu)\n",
__func__, dd->dd_name, ds, (u_long) dd->dd_desc_len,
(caddr_t) dd->dd_desc_paddr, /*XXX*/ (u_long) dd->dd_desc_len);
backout 1.136 until we can resolve report that it causes output to stall
2006-02-27 17:20:23 +00:00
/* allocate rx buffers */
Update with last year of work.
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bsize = sizeof(struct ath_buf) * nbuf;
bf = malloc(bsize, M_ATHDEV, M_NOWAIT | M_ZERO);
if (bf == NULL) {
if_printf(ifp, "malloc of %s buffers failed, size %u\n",
dd->dd_name, bsize);
goto fail3;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
dd->dd_bufptr = bf;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
STAILQ_INIT(head);
for (i = 0; i < nbuf; i++, bf++, ds += ndesc) {
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
bf->bf_desc = ds;
Update with last year of work.
2004-12-08 17:34:36 +00:00
bf->bf_daddr = DS2PHYS(dd, ds);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
error = bus_dmamap_create(sc->sc_dmat, BUS_DMA_NOWAIT,
Update with last year of work.
2004-12-08 17:34:36 +00:00
&bf->bf_dmamap);
if (error != 0) {
if_printf(ifp, "unable to create dmamap for %s "
"buffer %u, error %u\n", dd->dd_name, i, error);
ath_descdma_cleanup(sc, dd, head);
return error;
}
STAILQ_INSERT_TAIL(head, bf, bf_list);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
return 0;
Update with last year of work.
2004-12-08 17:34:36 +00:00
fail3:
bus_dmamap_unload(dd->dd_dmat, dd->dd_dmamap);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
fail2:
Update with last year of work.
2004-12-08 17:34:36 +00:00
bus_dmamem_free(dd->dd_dmat, dd->dd_desc, dd->dd_dmamap);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
fail1:
Update with last year of work.
2004-12-08 17:34:36 +00:00
bus_dmamap_destroy(dd->dd_dmat, dd->dd_dmamap);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
fail0:
Update with last year of work.
2004-12-08 17:34:36 +00:00
bus_dma_tag_destroy(dd->dd_dmat);
memset(dd, 0, sizeof(*dd));
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
return error;
Update with last year of work.
2004-12-08 17:34:36 +00:00
#undef DS2PHYS
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
static void
Update with last year of work.
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ath_descdma_cleanup(struct ath_softc *sc,
struct ath_descdma *dd, ath_bufhead *head)
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
{
struct ath_buf *bf;
Update with last year of work.
2004-12-08 17:34:36 +00:00
struct ieee80211_node *ni;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
bus_dmamap_unload(dd->dd_dmat, dd->dd_dmamap);
bus_dmamem_free(dd->dd_dmat, dd->dd_desc, dd->dd_dmamap);
bus_dmamap_destroy(dd->dd_dmat, dd->dd_dmamap);
bus_dma_tag_destroy(dd->dd_dmat);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
STAILQ_FOREACH(bf, head, bf_list) {
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
if (bf->bf_m) {
m_freem(bf->bf_m);
bf->bf_m = NULL;
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (bf->bf_dmamap != NULL) {
bus_dmamap_destroy(sc->sc_dmat, bf->bf_dmamap);
bf->bf_dmamap = NULL;
}
ni = bf->bf_node;
bf->bf_node = NULL;
if (ni != NULL) {
/*
* Reclaim node reference.
*/
ieee80211_free_node(ni);
}
}
STAILQ_INIT(head);
free(dd->dd_bufptr, M_ATHDEV);
memset(dd, 0, sizeof(*dd));
}
static int
ath_desc_alloc(struct ath_softc *sc)
{
int error;
error = ath_descdma_setup(sc, &sc->sc_rxdma, &sc->sc_rxbuf,
allow the size of tx+rx buffer pools to be tuned MFC after: 2 weeks
2006-02-09 21:03:25 +00:00
"rx", ath_rxbuf, 1);
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (error != 0)
return error;
error = ath_descdma_setup(sc, &sc->sc_txdma, &sc->sc_txbuf,
allow the size of tx+rx buffer pools to be tuned MFC after: 2 weeks
2006-02-09 21:03:25 +00:00
"tx", ath_txbuf, ATH_TXDESC);
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (error != 0) {
ath_descdma_cleanup(sc, &sc->sc_rxdma, &sc->sc_rxbuf);
return error;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
error = ath_descdma_setup(sc, &sc->sc_bdma, &sc->sc_bbuf,
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
"beacon", ATH_BCBUF, 1);
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (error != 0) {
ath_descdma_cleanup(sc, &sc->sc_txdma, &sc->sc_txbuf);
ath_descdma_cleanup(sc, &sc->sc_rxdma, &sc->sc_rxbuf);
return error;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
return 0;
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
static void
ath_desc_free(struct ath_softc *sc)
{
if (sc->sc_bdma.dd_desc_len != 0)
ath_descdma_cleanup(sc, &sc->sc_bdma, &sc->sc_bbuf);
if (sc->sc_txdma.dd_desc_len != 0)
ath_descdma_cleanup(sc, &sc->sc_txdma, &sc->sc_txbuf);
if (sc->sc_rxdma.dd_desc_len != 0)
ath_descdma_cleanup(sc, &sc->sc_rxdma, &sc->sc_rxbuf);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
static struct ieee80211_node *
Change the calling convention for ic_node_alloc to deal with some longstanding issues: o pass the vap since it's now the "coin of the realm" and required to do things like set initial tx parameters in private node state for use prior to association o pass the mac address as cards that maintain outboard station tables require this to create an entry (e.g. in ibss mode) o remove the node table reference, we only have one node table and it's unlikely this will change so this is not needed to find the com structure
2008-06-07 18:38:02 +00:00
ath_node_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN])
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
{
Change the calling convention for ic_node_alloc to deal with some longstanding issues: o pass the vap since it's now the "coin of the realm" and required to do things like set initial tx parameters in private node state for use prior to association o pass the mac address as cards that maintain outboard station tables require this to create an entry (e.g. in ibss mode) o remove the node table reference, we only have one node table and it's unlikely this will change so this is not needed to find the com structure
2008-06-07 18:38:02 +00:00
struct ieee80211com *ic = vap->iv_ic;
Update with last year of work.
2004-12-08 17:34:36 +00:00
struct ath_softc *sc = ic->ic_ifp->if_softc;
const size_t space = sizeof(struct ath_node) + sc->sc_rc->arc_space;
struct ath_node *an;
an = malloc(space, M_80211_NODE, M_NOWAIT|M_ZERO);
if (an == NULL) {
/* XXX stat+msg */
Maintain a history of data associated with received frames and use this to calculate smoothed signal quality data for each node. o add a 16-deep history buffer to each driver-private node storage that holds rssi and antenna info for received frames o override the default per-node "get rssi" method to return an average rssi value based on samples collected over the last second o enable beacon reception so even idle systems maintain a running history of signal quality This data may also be useful for improving the rate control algorithm. Based on work by Tom Marshall <tommy@home.tig-grr.com> for MADWIFI.
2003-09-15 22:34:46 +00:00
return NULL;
Update with last year of work.
2004-12-08 17:34:36 +00:00
}
ath_rate_node_init(sc, an);
DPRINTF(sc, ATH_DEBUG_NODE, "%s: an %p\n", __func__, an);
return &an->an_node;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
static void
Update with last year of work.
2004-12-08 17:34:36 +00:00
ath_node_free(struct ieee80211_node *ni)
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
{
Update with last year of work.
2004-12-08 17:34:36 +00:00
struct ieee80211com *ic = ni->ni_ic;
struct ath_softc *sc = ic->ic_ifp->if_softc;
do proper subclassing of node free+copy; the previous hack falls apart when the 802.11 layer does useful work Obtained from: madwifi
2004-04-03 00:06:23 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
DPRINTF(sc, ATH_DEBUG_NODE, "%s: ni %p\n", __func__, ni);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
ath_rate_node_cleanup(sc, ATH_NODE(ni));
sc->sc_node_free(ni);
}
Maintain a history of data associated with received frames and use this to calculate smoothed signal quality data for each node. o add a 16-deep history buffer to each driver-private node storage that holds rssi and antenna info for received frames o override the default per-node "get rssi" method to return an average rssi value based on samples collected over the last second o enable beacon reception so even idle systems maintain a running history of signal quality This data may also be useful for improving the rate control algorithm. Based on work by Tom Marshall <tommy@home.tig-grr.com> for MADWIFI.
2003-09-15 22:34:46 +00:00
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
static void
ath_node_getsignal(const struct ieee80211_node *ni, int8_t *rssi, int8_t *noise)
{
struct ieee80211com *ic = ni->ni_ic;
struct ath_softc *sc = ic->ic_ifp->if_softc;
struct ath_hal *ah = sc->sc_ah;
HAL_CHANNEL hchan;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
*rssi = ic->ic_node_getrssi(ni);
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
if (ni->ni_chan != IEEE80211_CHAN_ANYC) {
add hack to deal with Ubiquiti XR9 cards, they have a different mapping between 900MHz and 2.4GHz frequencies than SR9 cards; they are distinguished by different country codes
2008-10-27 18:00:43 +00:00
ath_mapchan(ic, &hchan, ni->ni_chan);
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
*noise = ath_hal_getchannoise(ah, &hchan);
} else
*noise = -95; /* nominally correct */
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
static int
ath_rxbuf_init(struct ath_softc *sc, struct ath_buf *bf)
{
struct ath_hal *ah = sc->sc_ah;
int error;
struct mbuf *m;
struct ath_desc *ds;
m = bf->bf_m;
if (m == NULL) {
/*
* NB: by assigning a page to the rx dma buffer we
* implicitly satisfy the Atheros requirement that
* this buffer be cache-line-aligned and sized to be
* multiple of the cache line size. Not doing this
* causes weird stuff to happen (for the 5210 at least).
*/
m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
if (m == NULL) {
Update with last year of work.
2004-12-08 17:34:36 +00:00
DPRINTF(sc, ATH_DEBUG_ANY,
"%s: no mbuf/cluster\n", __func__);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
sc->sc_stats.ast_rx_nombuf++;
return ENOMEM;
}
m->m_pkthdr.len = m->m_len = m->m_ext.ext_size;
switch to use bus_dmamap_load_mbuf_sg
2005-01-24 19:51:59 +00:00
error = bus_dmamap_load_mbuf_sg(sc->sc_dmat,
Update with last year of work.
2004-12-08 17:34:36 +00:00
bf->bf_dmamap, m,
switch to use bus_dmamap_load_mbuf_sg
2005-01-24 19:51:59 +00:00
bf->bf_segs, &bf->bf_nseg,
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
BUS_DMA_NOWAIT);
if (error != 0) {
Update with last year of work.
2004-12-08 17:34:36 +00:00
DPRINTF(sc, ATH_DEBUG_ANY,
switch to use bus_dmamap_load_mbuf_sg
2005-01-24 19:51:59 +00:00
"%s: bus_dmamap_load_mbuf_sg failed; error %d\n",
__func__, error);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
sc->sc_stats.ast_rx_busdma++;
correct handling of mbuf allocation failure when replenishing the rx list (leave a printf for the moment, need to make a debug msg) Obtained from: atheros MFC after: 2 weeks
2006-02-09 22:29:23 +00:00
m_freem(m);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
return error;
}
cleanup some assertions
2004-12-31 20:11:23 +00:00
KASSERT(bf->bf_nseg == 1,
("multi-segment packet; nseg %u", bf->bf_nseg));
correct handling of mbuf allocation failure when replenishing the rx list (leave a printf for the moment, need to make a debug msg) Obtained from: atheros MFC after: 2 weeks
2006-02-09 22:29:23 +00:00
bf->bf_m = m;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
bus_dmamap_sync(sc->sc_dmat, bf->bf_dmamap, BUS_DMASYNC_PREREAD);
terminate the rx descriptor list with a self-linked entry so high phy error rates on a 5212 don't cause rx overruns
2003-10-22 04:37:34 +00:00
/*
* Setup descriptors. For receive we always terminate
* the descriptor list with a self-linked entry so we'll
* not get overrun under high load (as can happen with a
Update with last year of work.
2004-12-08 17:34:36 +00:00
* 5212 when ANI processing enables PHY error frames).
terminate the rx descriptor list with a self-linked entry so high phy error rates on a 5212 don't cause rx overruns
2003-10-22 04:37:34 +00:00
*
* To insure the last descriptor is self-linked we create
* each descriptor as self-linked and add it to the end. As
* each additional descriptor is added the previous self-linked
* entry is ``fixed'' naturally. This should be safe even
* if DMA is happening. When processing RX interrupts we
* never remove/process the last, self-linked, entry on the
* descriptor list. This insures the hardware always has
* someplace to write a new frame.
*/
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
ds = bf->bf_desc;
terminate the rx descriptor list with a self-linked entry so high phy error rates on a 5212 don't cause rx overruns
2003-10-22 04:37:34 +00:00
ds->ds_link = bf->bf_daddr; /* link to self */
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
ds->ds_data = bf->bf_segs[0].ds_addr;
ath_hal_setuprxdesc(ah, ds
, m->m_len /* buffer size */
, 0
);
if (sc->sc_rxlink != NULL)
*sc->sc_rxlink = bf->bf_daddr;
sc->sc_rxlink = &ds->ds_link;
return 0;
}
extend the timestamp from the rx descriptor to calculate the tsf to use when checking for an ibss merge
2005-03-29 22:16:49 +00:00
/*
* Extend 15-bit time stamp from rx descriptor to
Update monitoring support: o record tsf in tx+rx frames o switch from raw rssi to dbm for signal data and record both signal and noise floor data (hacked for now to assume a fixed noise floor; is correct with new hal) o add monpass sysctl to control which rx'd frames are passed up with errors; especially useful to see frames with CRC errors o mark 'd packets w/ a CRC error with radiotap's BADFCS flag Also add placeholder code for calibrating the noise floor when using newer hals. Reviewed by: avatar MFC after: 1 week
2006-01-09 17:13:20 +00:00
* a full 64-bit TSF using the specified TSF.
extend the timestamp from the rx descriptor to calculate the tsf to use when checking for an ibss merge
2005-03-29 22:16:49 +00:00
*/
static __inline u_int64_t
Update monitoring support: o record tsf in tx+rx frames o switch from raw rssi to dbm for signal data and record both signal and noise floor data (hacked for now to assume a fixed noise floor; is correct with new hal) o add monpass sysctl to control which rx'd frames are passed up with errors; especially useful to see frames with CRC errors o mark 'd packets w/ a CRC error with radiotap's BADFCS flag Also add placeholder code for calibrating the noise floor when using newer hals. Reviewed by: avatar MFC after: 1 week
2006-01-09 17:13:20 +00:00
ath_extend_tsf(u_int32_t rstamp, u_int64_t tsf)
extend the timestamp from the rx descriptor to calculate the tsf to use when checking for an ibss merge
2005-03-29 22:16:49 +00:00
{
if ((tsf & 0x7fff) < rstamp)
tsf -= 0x8000;
return ((tsf &~ 0x7fff) | rstamp);
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* Intercept management frames to collect beacon rssi data
* and to do ibss merges.
*/
static void
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ath_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m,
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
int subtype, int rssi, int noise, u_int32_t rstamp)
Update with last year of work.
2004-12-08 17:34:36 +00:00
{
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
struct ieee80211vap *vap = ni->ni_vap;
struct ath_softc *sc = vap->iv_ic->ic_ifp->if_softc;
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* Call up first so subsequent work can use information
* potentially stored in the node (e.g. for ibss merge).
*/
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ATH_VAP(vap)->av_recv_mgmt(ni, m, subtype, rssi, noise, rstamp);
Update with last year of work.
2004-12-08 17:34:36 +00:00
switch (subtype) {
case IEEE80211_FC0_SUBTYPE_BEACON:
/* update rssi statistics for use by the hal */
move hal statistics to softc; the per-node stats are overkill, they're only used when operating in station mode MFC after: 2 weeks
2006-02-09 21:23:44 +00:00
ATH_RSSI_LPF(sc->sc_halstats.ns_avgbrssi, rssi);
Beacon timer setup fixes: o pull nexttbtt forward in adhoc mode too o resync beacon timers on joining a bss or ibss as the tstamp we collected while scanning is almost certainly out of date Note we may need to refine the ibss mode check in ath_recv_mgmt. Reviewed by: avatar, dyoung Obtained from: atheros MFC after: 2 weeks
2006-02-09 22:21:53 +00:00
if (sc->sc_syncbeacon &&
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ni == vap->iv_bss && vap->iv_state == IEEE80211_S_RUN) {
Beacon timer setup fixes: o pull nexttbtt forward in adhoc mode too o resync beacon timers on joining a bss or ibss as the tstamp we collected while scanning is almost certainly out of date Note we may need to refine the ibss mode check in ath_recv_mgmt. Reviewed by: avatar, dyoung Obtained from: atheros MFC after: 2 weeks
2006-02-09 22:21:53 +00:00
/*
* Resync beacon timers using the tsf of the beacon
* frame we just received.
*/
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ath_beacon_config(sc, vap);
Beacon timer setup fixes: o pull nexttbtt forward in adhoc mode too o resync beacon timers on joining a bss or ibss as the tstamp we collected while scanning is almost certainly out of date Note we may need to refine the ibss mode check in ath_recv_mgmt. Reviewed by: avatar, dyoung Obtained from: atheros MFC after: 2 weeks
2006-02-09 22:21:53 +00:00
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
/* fall thru... */
case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if (vap->iv_opmode == IEEE80211_M_IBSS &&
vap->iv_state == IEEE80211_S_RUN) {
Update monitoring support: o record tsf in tx+rx frames o switch from raw rssi to dbm for signal data and record both signal and noise floor data (hacked for now to assume a fixed noise floor; is correct with new hal) o add monpass sysctl to control which rx'd frames are passed up with errors; especially useful to see frames with CRC errors o mark 'd packets w/ a CRC error with radiotap's BADFCS flag Also add placeholder code for calibrating the noise floor when using newer hals. Reviewed by: avatar MFC after: 1 week
2006-01-09 17:13:20 +00:00
u_int64_t tsf = ath_extend_tsf(rstamp,
ath_hal_gettsf64(sc->sc_ah));
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* Handle ibss merge as needed; check the tsf on the
* frame before attempting the merge. The 802.11 spec
* says the station should change it's bssid to match
* the oldest station with the same ssid, where oldest
beacon handling fixups for adhoc mode: o don't reclaim any previous beacon state in ath_beacon_alloc; do it explicitly in ath_newstate o reference count the node held in the beacon frame state block o process ibss merge more intelligently; let the state machine do the right thing instead of explicitly setting the new bssi id o explicitly stop tx dma before doing beacon setup to handle the ibss merge case
2005-01-24 20:05:03 +00:00
* is determined by the tsf. Note that hardware
* reconfiguration happens through callback to
extend the timestamp from the rx descriptor to calculate the tsf to use when checking for an ibss merge
2005-03-29 22:16:49 +00:00
* ath_newstate as the state machine will go from
* RUN -> RUN when this happens.
Update with last year of work.
2004-12-08 17:34:36 +00:00
*/
extend the timestamp from the rx descriptor to calculate the tsf to use when checking for an ibss merge
2005-03-29 22:16:49 +00:00
if (le64toh(ni->ni_tstamp.tsf) >= tsf) {
DPRINTF(sc, ATH_DEBUG_STATE,
Fixing kernel build on amd64 machines. Reviewed by: sam (mentor)
2005-03-30 02:33:33 +00:00
"ibss merge, rstamp %u tsf %ju "
"tstamp %ju\n", rstamp, (uintmax_t)tsf,
(uintmax_t)ni->ni_tstamp.tsf);
simplify ieee80211_ibss_merge api MFC after: 3 days
2005-07-22 17:54:40 +00:00
(void) ieee80211_ibss_merge(ni);
extend the timestamp from the rx descriptor to calculate the tsf to use when checking for an ibss merge
2005-03-29 22:16:49 +00:00
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
}
break;
}
}
/*
* Set the default antenna.
*/
static void
ath_setdefantenna(struct ath_softc *sc, u_int antenna)
{
struct ath_hal *ah = sc->sc_ah;
/* XXX block beacon interrupts */
ath_hal_setdefantenna(ah, antenna);
if (sc->sc_defant != antenna)
sc->sc_stats.ast_ant_defswitch++;
sc->sc_defant = antenna;
sc->sc_rxotherant = 0;
}
Update monitoring support: o record tsf in tx+rx frames o switch from raw rssi to dbm for signal data and record both signal and noise floor data (hacked for now to assume a fixed noise floor; is correct with new hal) o add monpass sysctl to control which rx'd frames are passed up with errors; especially useful to see frames with CRC errors o mark 'd packets w/ a CRC error with radiotap's BADFCS flag Also add placeholder code for calibrating the noise floor when using newer hals. Reviewed by: avatar MFC after: 1 week
2006-01-09 17:13:20 +00:00
static int
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ath_rx_tap(struct ifnet *ifp, struct mbuf *m,
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
const struct ath_rx_status *rs, u_int64_t tsf, int16_t nf)
Update monitoring support: o record tsf in tx+rx frames o switch from raw rssi to dbm for signal data and record both signal and noise floor data (hacked for now to assume a fixed noise floor; is correct with new hal) o add monpass sysctl to control which rx'd frames are passed up with errors; especially useful to see frames with CRC errors o mark 'd packets w/ a CRC error with radiotap's BADFCS flag Also add placeholder code for calibrating the noise floor when using newer hals. Reviewed by: avatar MFC after: 1 week
2006-01-09 17:13:20 +00:00
{
correct rx radiotap channel flags construction for 11n frames
2008-05-29 00:14:35 +00:00
#define CHAN_HT20 htole32(IEEE80211_CHAN_HT20)
#define CHAN_HT40U htole32(IEEE80211_CHAN_HT40U)
#define CHAN_HT40D htole32(IEEE80211_CHAN_HT40D)
o With the addition of HT rates the set of h/w codes has a much wider range making the use of sc_hwmap to do direct mapping impractical. Switch to indexing by the rate index instead of the rate code and adjust associated state and logic appropriately. This has several benefits including simplification of the led code. o fix radiotap capture of HT rates o fix conditional compilation of HT radiotap support to be based on the hal having 5416 support; not the ABI version as hal builds may or may not include 5416 support
2008-10-27 18:22:44 +00:00
#define CHAN_HT (CHAN_HT20|CHAN_HT40U|CHAN_HT40D)
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
struct ath_softc *sc = ifp->if_softc;
o With the addition of HT rates the set of h/w codes has a much wider range making the use of sc_hwmap to do direct mapping impractical. Switch to indexing by the rate index instead of the rate code and adjust associated state and logic appropriately. This has several benefits including simplification of the led code. o fix radiotap capture of HT rates o fix conditional compilation of HT radiotap support to be based on the hal having 5416 support; not the ABI version as hal builds may or may not include 5416 support
2008-10-27 18:22:44 +00:00
const HAL_RATE_TABLE *rt;
uint8_t rix;
Update monitoring support: o record tsf in tx+rx frames o switch from raw rssi to dbm for signal data and record both signal and noise floor data (hacked for now to assume a fixed noise floor; is correct with new hal) o add monpass sysctl to control which rx'd frames are passed up with errors; especially useful to see frames with CRC errors o mark 'd packets w/ a CRC error with radiotap's BADFCS flag Also add placeholder code for calibrating the noise floor when using newer hals. Reviewed by: avatar MFC after: 1 week
2006-01-09 17:13:20 +00:00
/*
* Discard anything shorter than an ack or cts.
*/
if (m->m_pkthdr.len < IEEE80211_ACK_LEN) {
DPRINTF(sc, ATH_DEBUG_RECV, "%s: runt packet %d\n",
__func__, m->m_pkthdr.len);
sc->sc_stats.ast_rx_tooshort++;
return 0;
}
o With the addition of HT rates the set of h/w codes has a much wider range making the use of sc_hwmap to do direct mapping impractical. Switch to indexing by the rate index instead of the rate code and adjust associated state and logic appropriately. This has several benefits including simplification of the led code. o fix radiotap capture of HT rates o fix conditional compilation of HT radiotap support to be based on the hal having 5416 support; not the ABI version as hal builds may or may not include 5416 support
2008-10-27 18:22:44 +00:00
rt = sc->sc_currates;
KASSERT(rt != NULL, ("no rate table, mode %u", sc->sc_curmode));
rix = rt->rateCodeToIndex[rs->rs_rate];
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
sc->sc_rx_th.wr_rate = sc->sc_hwmap[rix].ieeerate;
Update monitoring support: o record tsf in tx+rx frames o switch from raw rssi to dbm for signal data and record both signal and noise floor data (hacked for now to assume a fixed noise floor; is correct with new hal) o add monpass sysctl to control which rx'd frames are passed up with errors; especially useful to see frames with CRC errors o mark 'd packets w/ a CRC error with radiotap's BADFCS flag Also add placeholder code for calibrating the noise floor when using newer hals. Reviewed by: avatar MFC after: 1 week
2006-01-09 17:13:20 +00:00
sc->sc_rx_th.wr_flags = sc->sc_hwmap[rix].rxflags;
o With the addition of HT rates the set of h/w codes has a much wider range making the use of sc_hwmap to do direct mapping impractical. Switch to indexing by the rate index instead of the rate code and adjust associated state and logic appropriately. This has several benefits including simplification of the led code. o fix radiotap capture of HT rates o fix conditional compilation of HT radiotap support to be based on the hal having 5416 support; not the ABI version as hal builds may or may not include 5416 support
2008-10-27 18:22:44 +00:00
#ifdef AH_SUPPORT_AR5416
correct rx radiotap channel flags construction for 11n frames
2008-05-29 00:14:35 +00:00
sc->sc_rx_th.wr_chan_flags &= ~CHAN_HT;
o With the addition of HT rates the set of h/w codes has a much wider range making the use of sc_hwmap to do direct mapping impractical. Switch to indexing by the rate index instead of the rate code and adjust associated state and logic appropriately. This has several benefits including simplification of the led code. o fix radiotap capture of HT rates o fix conditional compilation of HT radiotap support to be based on the hal having 5416 support; not the ABI version as hal builds may or may not include 5416 support
2008-10-27 18:22:44 +00:00
if (sc->sc_rx_th.wr_rate & IEEE80211_RATE_MCS) { /* HT rate */
correct rx radiotap channel flags construction for 11n frames
2008-05-29 00:14:35 +00:00
if ((rs->rs_flags & HAL_RX_2040) == 0)
sc->sc_rx_th.wr_chan_flags |= CHAN_HT20;
else if (sc->sc_curchan.channelFlags & CHANNEL_HT40PLUS)
sc->sc_rx_th.wr_chan_flags |= CHAN_HT40U;
else
sc->sc_rx_th.wr_chan_flags |= CHAN_HT40D;
if ((rs->rs_flags & HAL_RX_GI) == 0)
sc->sc_rx_th.wr_flags |= IEEE80211_RADIOTAP_F_SHORTGI;
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
}
#endif
sc->sc_rx_th.wr_tsf = htole64(ath_extend_tsf(rs->rs_tstamp, tsf));
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
if (rs->rs_status & HAL_RXERR_CRC)
Update monitoring support: o record tsf in tx+rx frames o switch from raw rssi to dbm for signal data and record both signal and noise floor data (hacked for now to assume a fixed noise floor; is correct with new hal) o add monpass sysctl to control which rx'd frames are passed up with errors; especially useful to see frames with CRC errors o mark 'd packets w/ a CRC error with radiotap's BADFCS flag Also add placeholder code for calibrating the noise floor when using newer hals. Reviewed by: avatar MFC after: 1 week
2006-01-09 17:13:20 +00:00
sc->sc_rx_th.wr_flags |= IEEE80211_RADIOTAP_F_BADFCS;
/* XXX propagate other error flags from descriptor */
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
sc->sc_rx_th.wr_antsignal = rs->rs_rssi + nf;
Update monitoring support: o record tsf in tx+rx frames o switch from raw rssi to dbm for signal data and record both signal and noise floor data (hacked for now to assume a fixed noise floor; is correct with new hal) o add monpass sysctl to control which rx'd frames are passed up with errors; especially useful to see frames with CRC errors o mark 'd packets w/ a CRC error with radiotap's BADFCS flag Also add placeholder code for calibrating the noise floor when using newer hals. Reviewed by: avatar MFC after: 1 week
2006-01-09 17:13:20 +00:00
sc->sc_rx_th.wr_antnoise = nf;
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
sc->sc_rx_th.wr_antenna = rs->rs_antenna;
Update monitoring support: o record tsf in tx+rx frames o switch from raw rssi to dbm for signal data and record both signal and noise floor data (hacked for now to assume a fixed noise floor; is correct with new hal) o add monpass sysctl to control which rx'd frames are passed up with errors; especially useful to see frames with CRC errors o mark 'd packets w/ a CRC error with radiotap's BADFCS flag Also add placeholder code for calibrating the noise floor when using newer hals. Reviewed by: avatar MFC after: 1 week
2006-01-09 17:13:20 +00:00
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
bpf_mtap2(ifp->if_bpf, &sc->sc_rx_th, sc->sc_rx_th_len, m);
Update monitoring support: o record tsf in tx+rx frames o switch from raw rssi to dbm for signal data and record both signal and noise floor data (hacked for now to assume a fixed noise floor; is correct with new hal) o add monpass sysctl to control which rx'd frames are passed up with errors; especially useful to see frames with CRC errors o mark 'd packets w/ a CRC error with radiotap's BADFCS flag Also add placeholder code for calibrating the noise floor when using newer hals. Reviewed by: avatar MFC after: 1 week
2006-01-09 17:13:20 +00:00
return 1;
o With the addition of HT rates the set of h/w codes has a much wider range making the use of sc_hwmap to do direct mapping impractical. Switch to indexing by the rate index instead of the rate code and adjust associated state and logic appropriately. This has several benefits including simplification of the led code. o fix radiotap capture of HT rates o fix conditional compilation of HT radiotap support to be based on the hal having 5416 support; not the ABI version as hal builds may or may not include 5416 support
2008-10-27 18:22:44 +00:00
#undef CHAN_HT
correct rx radiotap channel flags construction for 11n frames
2008-05-29 00:14:35 +00:00
#undef CHAN_HT20
#undef CHAN_HT40U
#undef CHAN_HT40D
Update monitoring support: o record tsf in tx+rx frames o switch from raw rssi to dbm for signal data and record both signal and noise floor data (hacked for now to assume a fixed noise floor; is correct with new hal) o add monpass sysctl to control which rx'd frames are passed up with errors; especially useful to see frames with CRC errors o mark 'd packets w/ a CRC error with radiotap's BADFCS flag Also add placeholder code for calibrating the noise floor when using newer hals. Reviewed by: avatar MFC after: 1 week
2006-01-09 17:13:20 +00:00
}
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
static void
ath_handle_micerror(struct ieee80211com *ic,
struct ieee80211_frame *wh, int keyix)
{
struct ieee80211_node *ni;
/* XXX recheck MIC to deal w/ chips that lie */
/* XXX discard MIC errors on !data frames */
ni = ieee80211_find_rxnode(ic, (const struct ieee80211_frame_min *) wh);
if (ni != NULL) {
ieee80211_notify_michael_failure(ni->ni_vap, wh, keyix);
ieee80211_free_node(ni);
}
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
static void
ath_rx_proc(void *arg, int npending)
{
o track API change for HAL v0.9.6.1 o fix race condition when processing rx descriptors: because we use a self-linked descriptor at the end of the rx descriptor list to avoid rx overruns (which can easily happen for 5212 parts that enable PHY errors) we must carefully check that a descriptor is "done" by looking ahead to the next descriptor before believing the done bit in the current descriptor (this is all handled in the HAL since the rx descriptor format is chip-specific so we need to pass in two additional parameters--the physical address of the current descriptor and the virtual address of the next descriptor in the list) o check copyout return status for SIOCGATHSTATS ioctl Approved by: re (scottl)
2003-11-29 01:23:59 +00:00
#define PA2DESC(_sc, _pa) \
Update with last year of work.
2004-12-08 17:34:36 +00:00
((struct ath_desc *)((caddr_t)(_sc)->sc_rxdma.dd_desc + \
((_pa) - (_sc)->sc_rxdma.dd_desc_paddr)))
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
struct ath_softc *sc = arg;
struct ath_buf *bf;
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
struct ifnet *ifp = sc->sc_ifp;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
struct ieee80211com *ic = ifp->if_l2com;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
struct ath_hal *ah = sc->sc_ah;
struct ath_desc *ds;
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
struct ath_rx_status *rs;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
struct mbuf *m;
MFp4 changes to fix locking issues and correct reference count handling of station entries in hostap mode: Input path: o driver is now expected to find the node associated with the sender of a received frame; use ic_bss if none is located o driver passes the (referenced) node into ieee80211_input for use within the wlan module and is responsible for cleaning up on return o the antenna state is no longer passed up with each frame; this is now considered driver-private state and drivers are responsible for keeping it in the driver-private part of a node Output path: Revamp output path for management frames to eliminate redundant locking that causes problems and to correct reference counting bogosity that occurs when stations are timed out due to inactivity (in AP mode). On output the refcnt'd node is stashed in the pkthdr's recvif field (yech) and retrieved by the driver. This eliminates an unref/ref scenario and related node table unlock/lock due to the driver looking up the node. This is particularly important when stations are timed out as this causes a lock order reversal that can result in a deadlock. As a byproduct we also reduce the overhead for sending management frames (minimal). Additional fallout from this is a change to ieee80211_encap to return a refcn't node for tieing to the outbound frame. Node refcnts are not reclaimed until after a frame is completely processed (e.g. in the tx interrupt handler). This is especially important for timed out stations as this deref will be the final one causing the node entry to be reclaimed. Additional semi-related changes: o replace m_copym use with m_copypacket (optimization) o add assert to verify ic_bss is never free'd during normal operation o add comments explaining calling conventions by drivers for frames going in each direction o remove extraneous code that "cannot be executed" (e.g. because pointers may never be null)
2003-08-19 22:17:04 +00:00
struct ieee80211_node *ni;
Phantom beacon miss workaround: track the tsf of the last received frame and if we get a beacon miss interrupt ignore it if we've received a frame within the beacon miss interval. This should never trigger and the handling at the net80211 layer should likewise deal with this but it doesn't hurt and can suppress extranous probe request frames. Note that we can legtimately get a bmiss when under heavy load. MFC after: 2 weeks
2006-02-09 22:03:26 +00:00
int len, type, ngood;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
u_int phyerr;
HAL_STATUS status;
Update monitoring support: o record tsf in tx+rx frames o switch from raw rssi to dbm for signal data and record both signal and noise floor data (hacked for now to assume a fixed noise floor; is correct with new hal) o add monpass sysctl to control which rx'd frames are passed up with errors; especially useful to see frames with CRC errors o mark 'd packets w/ a CRC error with radiotap's BADFCS flag Also add placeholder code for calibrating the noise floor when using newer hals. Reviewed by: avatar MFC after: 1 week
2006-01-09 17:13:20 +00:00
int16_t nf;
u_int64_t tsf;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
DPRINTF(sc, ATH_DEBUG_RX_PROC, "%s: pending %u\n", __func__, npending);
Phantom beacon miss workaround: track the tsf of the last received frame and if we get a beacon miss interrupt ignore it if we've received a frame within the beacon miss interval. This should never trigger and the handling at the net80211 layer should likewise deal with this but it doesn't hurt and can suppress extranous probe request frames. Note that we can legtimately get a bmiss when under heavy load. MFC after: 2 weeks
2006-02-09 22:03:26 +00:00
ngood = 0;
Update monitoring support: o record tsf in tx+rx frames o switch from raw rssi to dbm for signal data and record both signal and noise floor data (hacked for now to assume a fixed noise floor; is correct with new hal) o add monpass sysctl to control which rx'd frames are passed up with errors; especially useful to see frames with CRC errors o mark 'd packets w/ a CRC error with radiotap's BADFCS flag Also add placeholder code for calibrating the noise floor when using newer hals. Reviewed by: avatar MFC after: 1 week
2006-01-09 17:13:20 +00:00
nf = ath_hal_getchannoise(ah, &sc->sc_curchan);
Fixup statistics: o update tx rssi data only when an ACK was received o return tx rssi from sampled data instead of the last frame o track noise floor o return rx rssi and noise floor (was broken)
2008-10-27 17:51:24 +00:00
sc->sc_stats.ast_rx_noise = nf;
Update monitoring support: o record tsf in tx+rx frames o switch from raw rssi to dbm for signal data and record both signal and noise floor data (hacked for now to assume a fixed noise floor; is correct with new hal) o add monpass sysctl to control which rx'd frames are passed up with errors; especially useful to see frames with CRC errors o mark 'd packets w/ a CRC error with radiotap's BADFCS flag Also add placeholder code for calibrating the noise floor when using newer hals. Reviewed by: avatar MFC after: 1 week
2006-01-09 17:13:20 +00:00
tsf = ath_hal_gettsf64(ah);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
do {
Update with last year of work.
2004-12-08 17:34:36 +00:00
bf = STAILQ_FIRST(&sc->sc_rxbuf);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
if (bf == NULL) { /* NB: shouldn't happen */
Update with last year of work.
2004-12-08 17:34:36 +00:00
if_printf(ifp, "%s: no buffer!\n", __func__);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
break;
}
correct handling of mbuf allocation failure when replenishing the rx list (leave a printf for the moment, need to make a debug msg) Obtained from: atheros MFC after: 2 weeks
2006-02-09 22:29:23 +00:00
m = bf->bf_m;
if (m == NULL) { /* NB: shouldn't happen */
/*
* If mbuf allocation failed previously there
* will be no mbuf; try again to re-populate it.
*/
/* XXX make debug msg */
if_printf(ifp, "%s: no mbuf!\n", __func__);
STAILQ_REMOVE_HEAD(&sc->sc_rxbuf, bf_list);
goto rx_next;
}
terminate the rx descriptor list with a self-linked entry so high phy error rates on a 5212 don't cause rx overruns
2003-10-22 04:37:34 +00:00
ds = bf->bf_desc;
if (ds->ds_link == bf->bf_daddr) {
/* NB: never process the self-linked entry at the end */
break;
}
o track API change for HAL v0.9.6.1 o fix race condition when processing rx descriptors: because we use a self-linked descriptor at the end of the rx descriptor list to avoid rx overruns (which can easily happen for 5212 parts that enable PHY errors) we must carefully check that a descriptor is "done" by looking ahead to the next descriptor before believing the done bit in the current descriptor (this is all handled in the HAL since the rx descriptor format is chip-specific so we need to pass in two additional parameters--the physical address of the current descriptor and the virtual address of the next descriptor in the list) o check copyout return status for SIOCGATHSTATS ioctl Approved by: re (scottl)
2003-11-29 01:23:59 +00:00
/* XXX sync descriptor memory */
/*
* Must provide the virtual address of the current
* descriptor, the physical address, and the virtual
* address of the next descriptor in the h/w chain.
* This allows the HAL to look ahead to see if the
* hardware is done with a descriptor by checking the
* done bit in the following descriptor and the address
* of the current descriptor the DMA engine is working
* on. All this is necessary because of our use of
* a self-linked list to avoid rx overruns.
*/
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
rs = &bf->bf_status.ds_rxstat;
o track API change for HAL v0.9.6.1 o fix race condition when processing rx descriptors: because we use a self-linked descriptor at the end of the rx descriptor list to avoid rx overruns (which can easily happen for 5212 parts that enable PHY errors) we must carefully check that a descriptor is "done" by looking ahead to the next descriptor before believing the done bit in the current descriptor (this is all handled in the HAL since the rx descriptor format is chip-specific so we need to pass in two additional parameters--the physical address of the current descriptor and the virtual address of the next descriptor in the list) o check copyout return status for SIOCGATHSTATS ioctl Approved by: re (scottl)
2003-11-29 01:23:59 +00:00
status = ath_hal_rxprocdesc(ah, ds,
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
bf->bf_daddr, PA2DESC(sc, ds->ds_link), rs);
o add opt_ath.h enable tweaking various config parameters for the driver without modifying the source code o default debug msgs and diag support to off MFC after: 3 days
2006-04-03 18:14:02 +00:00
#ifdef ATH_DEBUG
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (sc->sc_debug & ATH_DEBUG_RECV_DESC)
print the extended tx/rx descriptor for 5416 and later parts
2008-11-24 01:34:56 +00:00
ath_printrxbuf(sc, bf, 0, status == HAL_OK);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
#endif
if (status == HAL_EINPROGRESS)
break;
Update with last year of work.
2004-12-08 17:34:36 +00:00
STAILQ_REMOVE_HEAD(&sc->sc_rxbuf, bf_list);
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
if (rs->rs_status != 0) {
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
if (rs->rs_status & HAL_RXERR_CRC)
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
sc->sc_stats.ast_rx_crcerr++;
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
if (rs->rs_status & HAL_RXERR_FIFO)
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
sc->sc_stats.ast_rx_fifoerr++;
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
if (rs->rs_status & HAL_RXERR_PHY) {
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
sc->sc_stats.ast_rx_phyerr++;
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
phyerr = rs->rs_phyerr & 0x1f;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
sc->sc_stats.ast_rx_phy[phyerr]++;
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
goto rx_error; /* NB: don't count in ierrors */
Update with last year of work.
2004-12-08 17:34:36 +00:00
}
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
if (rs->rs_status & HAL_RXERR_DECRYPT) {
Don't count PHY errors as input errors. This is important for 5212-based devices because PHY errors are used to collect data on environmental noise that and doesn't truly reflect the state of the communications media. The result is confused users. Folks that want to watch PHY errors can still get the statistics through the device ioctl (used by athstats).
2003-11-13 05:35:07 +00:00
/*
Update with last year of work.
2004-12-08 17:34:36 +00:00
* Decrypt error. If the error occurred
* because there was no hardware key, then
* let the frame through so the upper layers
* can process it. This is necessary for 5210
* parts which have no way to setup a ``clear''
* key cache entry.
*
* XXX do key cache faulting
Don't count PHY errors as input errors. This is important for 5212-based devices because PHY errors are used to collect data on environmental noise that and doesn't truly reflect the state of the communications media. The result is confused users. Folks that want to watch PHY errors can still get the statistics through the device ioctl (used by athstats).
2003-11-13 05:35:07 +00:00
*/
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
if (rs->rs_keyix == HAL_RXKEYIX_INVALID)
Update with last year of work.
2004-12-08 17:34:36 +00:00
goto rx_accept;
sc->sc_stats.ast_rx_badcrypt++;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
if (rs->rs_status & HAL_RXERR_MIC) {
Update with last year of work.
2004-12-08 17:34:36 +00:00
sc->sc_stats.ast_rx_badmic++;
/*
* Do minimal work required to hand off
* the 802.11 header for notifcation.
*/
/* XXX frag's and qos frames */
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
len = rs->rs_datalen;
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (len >= sizeof (struct ieee80211_frame)) {
bus_dmamap_sync(sc->sc_dmat,
bf->bf_dmamap,
BUS_DMASYNC_POSTREAD);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ath_handle_micerror(ic,
Update with last year of work.
2004-12-08 17:34:36 +00:00
mtod(m, struct ieee80211_frame *),
for parts that require split keycache entries report the the index of the first entry on a mic error so we're consistent with parts that don't have split keycache
2004-12-31 20:21:31 +00:00
sc->sc_splitmic ?
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
rs->rs_keyix-32 : rs->rs_keyix);
Update with last year of work.
2004-12-08 17:34:36 +00:00
}
}
ifp->if_ierrors++;
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
rx_error:
/*
* Cleanup any pending partial frame.
*/
if (sc->sc_rxpending != NULL) {
m_freem(sc->sc_rxpending);
sc->sc_rxpending = NULL;
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
Update monitoring support: o record tsf in tx+rx frames o switch from raw rssi to dbm for signal data and record both signal and noise floor data (hacked for now to assume a fixed noise floor; is correct with new hal) o add monpass sysctl to control which rx'd frames are passed up with errors; especially useful to see frames with CRC errors o mark 'd packets w/ a CRC error with radiotap's BADFCS flag Also add placeholder code for calibrating the noise floor when using newer hals. Reviewed by: avatar MFC after: 1 week
2006-01-09 17:13:20 +00:00
* When a tap is present pass error frames
* that have been requested. By default we
* pass decrypt+mic errors but others may be
* interesting (e.g. crc).
Update with last year of work.
2004-12-08 17:34:36 +00:00
*/
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if (bpf_peers_present(ifp->if_bpf) &&
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
(rs->rs_status & sc->sc_monpass)) {
Update monitoring support: o record tsf in tx+rx frames o switch from raw rssi to dbm for signal data and record both signal and noise floor data (hacked for now to assume a fixed noise floor; is correct with new hal) o add monpass sysctl to control which rx'd frames are passed up with errors; especially useful to see frames with CRC errors o mark 'd packets w/ a CRC error with radiotap's BADFCS flag Also add placeholder code for calibrating the noise floor when using newer hals. Reviewed by: avatar MFC after: 1 week
2006-01-09 17:13:20 +00:00
bus_dmamap_sync(sc->sc_dmat, bf->bf_dmamap,
BUS_DMASYNC_POSTREAD);
/* NB: bpf needs the mbuf length setup */
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
len = rs->rs_datalen;
Update monitoring support: o record tsf in tx+rx frames o switch from raw rssi to dbm for signal data and record both signal and noise floor data (hacked for now to assume a fixed noise floor; is correct with new hal) o add monpass sysctl to control which rx'd frames are passed up with errors; especially useful to see frames with CRC errors o mark 'd packets w/ a CRC error with radiotap's BADFCS flag Also add placeholder code for calibrating the noise floor when using newer hals. Reviewed by: avatar MFC after: 1 week
2006-01-09 17:13:20 +00:00
m->m_pkthdr.len = m->m_len = len;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
(void) ath_rx_tap(ifp, m, rs, tsf, nf);
Update monitoring support: o record tsf in tx+rx frames o switch from raw rssi to dbm for signal data and record both signal and noise floor data (hacked for now to assume a fixed noise floor; is correct with new hal) o add monpass sysctl to control which rx'd frames are passed up with errors; especially useful to see frames with CRC errors o mark 'd packets w/ a CRC error with radiotap's BADFCS flag Also add placeholder code for calibrating the noise floor when using newer hals. Reviewed by: avatar MFC after: 1 week
2006-01-09 17:13:20 +00:00
}
/* XXX pass MIC errors up for s/w reclaculation */
goto rx_next;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
rx_accept:
/*
* Sync and unmap the frame. At this point we're
* committed to passing the mbuf somewhere so clear
fixup comments
2006-02-15 18:15:49 +00:00
* bf_m; this means a new mbuf must be allocated
Update with last year of work.
2004-12-08 17:34:36 +00:00
* when the rx descriptor is setup again to receive
* another frame.
*/
bus_dmamap_sync(sc->sc_dmat, bf->bf_dmamap,
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
BUS_DMASYNC_POSTREAD);
bus_dmamap_unload(sc->sc_dmat, bf->bf_dmamap);
bf->bf_m = NULL;
Update with last year of work.
2004-12-08 17:34:36 +00:00
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
len = rs->rs_datalen;
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
m->m_len = len;
if (rs->rs_more) {
/*
* Frame spans multiple descriptors; save
* it for the next completed descriptor, it
* will be used to construct a jumbogram.
*/
if (sc->sc_rxpending != NULL) {
/* NB: max frame size is currently 2 clusters */
sc->sc_stats.ast_rx_toobig++;
m_freem(sc->sc_rxpending);
}
m->m_pkthdr.rcvif = ifp;
m->m_pkthdr.len = len;
sc->sc_rxpending = m;
goto rx_next;
} else if (sc->sc_rxpending != NULL) {
/*
* This is the second part of a jumbogram,
* chain it to the first mbuf, adjust the
* frame length, and clear the rxpending state.
*/
sc->sc_rxpending->m_next = m;
sc->sc_rxpending->m_pkthdr.len += len;
m = sc->sc_rxpending;
sc->sc_rxpending = NULL;
} else {
/*
* Normal single-descriptor receive; setup
* the rcvif and packet length.
*/
m->m_pkthdr.rcvif = ifp;
m->m_pkthdr.len = len;
}
Add support for the experimental radiotap capture format. With this we no longer need the debugging code to dump packets.
2003-09-05 22:22:49 +00:00
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ifp->if_ipackets++;
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
sc->sc_stats.ast_ant_rx[rs->rs_antenna]++;
Update with last year of work.
2004-12-08 17:34:36 +00:00
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if (bpf_peers_present(ifp->if_bpf) &&
!ath_rx_tap(ifp, m, rs, tsf, nf)) {
Update monitoring support: o record tsf in tx+rx frames o switch from raw rssi to dbm for signal data and record both signal and noise floor data (hacked for now to assume a fixed noise floor; is correct with new hal) o add monpass sysctl to control which rx'd frames are passed up with errors; especially useful to see frames with CRC errors o mark 'd packets w/ a CRC error with radiotap's BADFCS flag Also add placeholder code for calibrating the noise floor when using newer hals. Reviewed by: avatar MFC after: 1 week
2006-01-09 17:13:20 +00:00
m_freem(m); /* XXX reclaim */
goto rx_next;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
MFp4 changes to fix locking issues and correct reference count handling of station entries in hostap mode: Input path: o driver is now expected to find the node associated with the sender of a received frame; use ic_bss if none is located o driver passes the (referenced) node into ieee80211_input for use within the wlan module and is responsible for cleaning up on return o the antenna state is no longer passed up with each frame; this is now considered driver-private state and drivers are responsible for keeping it in the driver-private part of a node Output path: Revamp output path for management frames to eliminate redundant locking that causes problems and to correct reference counting bogosity that occurs when stations are timed out due to inactivity (in AP mode). On output the refcnt'd node is stashed in the pkthdr's recvif field (yech) and retrieved by the driver. This eliminates an unref/ref scenario and related node table unlock/lock due to the driver looking up the node. This is particularly important when stations are timed out as this causes a lock order reversal that can result in a deadlock. As a byproduct we also reduce the overhead for sending management frames (minimal). Additional fallout from this is a change to ieee80211_encap to return a refcn't node for tieing to the outbound frame. Node refcnts are not reclaimed until after a frame is completely processed (e.g. in the tx interrupt handler). This is especially important for timed out stations as this deref will be the final one causing the node entry to be reclaimed. Additional semi-related changes: o replace m_copym use with m_copypacket (optimization) o add assert to verify ic_bss is never free'd during normal operation o add comments explaining calling conventions by drivers for frames going in each direction o remove extraneous code that "cannot be executed" (e.g. because pointers may never be null)
2003-08-19 22:17:04 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* From this point on we assume the frame is at least
* as large as ieee80211_frame_min; verify that.
*/
if (len < IEEE80211_MIN_LEN) {
DPRINTF(sc, ATH_DEBUG_RECV, "%s: short packet %d\n",
__func__, len);
sc->sc_stats.ast_rx_tooshort++;
m_freem(m);
goto rx_next;
}
if (IFF_DUMPPKTS(sc, ATH_DEBUG_RECV)) {
o With the addition of HT rates the set of h/w codes has a much wider range making the use of sc_hwmap to do direct mapping impractical. Switch to indexing by the rate index instead of the rate code and adjust associated state and logic appropriately. This has several benefits including simplification of the led code. o fix radiotap capture of HT rates o fix conditional compilation of HT radiotap support to be based on the hal having 5416 support; not the ABI version as hal builds may or may not include 5416 support
2008-10-27 18:22:44 +00:00
const HAL_RATE_TABLE *rt = sc->sc_currates;
uint8_t rix = rt->rateCodeToIndex[rs->rs_rate];
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
ieee80211_dump_pkt(ic, mtod(m, caddr_t), len,
o With the addition of HT rates the set of h/w codes has a much wider range making the use of sc_hwmap to do direct mapping impractical. Switch to indexing by the rate index instead of the rate code and adjust associated state and logic appropriately. This has several benefits including simplification of the led code. o fix radiotap capture of HT rates o fix conditional compilation of HT radiotap support to be based on the hal having 5416 support; not the ABI version as hal builds may or may not include 5416 support
2008-10-27 18:22:44 +00:00
sc->sc_hwmap[rix].ieeerate, rs->rs_rssi);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
MFp4 changes to fix locking issues and correct reference count handling of station entries in hostap mode: Input path: o driver is now expected to find the node associated with the sender of a received frame; use ic_bss if none is located o driver passes the (referenced) node into ieee80211_input for use within the wlan module and is responsible for cleaning up on return o the antenna state is no longer passed up with each frame; this is now considered driver-private state and drivers are responsible for keeping it in the driver-private part of a node Output path: Revamp output path for management frames to eliminate redundant locking that causes problems and to correct reference counting bogosity that occurs when stations are timed out due to inactivity (in AP mode). On output the refcnt'd node is stashed in the pkthdr's recvif field (yech) and retrieved by the driver. This eliminates an unref/ref scenario and related node table unlock/lock due to the driver looking up the node. This is particularly important when stations are timed out as this causes a lock order reversal that can result in a deadlock. As a byproduct we also reduce the overhead for sending management frames (minimal). Additional fallout from this is a change to ieee80211_encap to return a refcn't node for tieing to the outbound frame. Node refcnts are not reclaimed until after a frame is completely processed (e.g. in the tx interrupt handler). This is especially important for timed out stations as this deref will be the final one causing the node entry to be reclaimed. Additional semi-related changes: o replace m_copym use with m_copypacket (optimization) o add assert to verify ic_bss is never free'd during normal operation o add comments explaining calling conventions by drivers for frames going in each direction o remove extraneous code that "cannot be executed" (e.g. because pointers may never be null)
2003-08-19 22:17:04 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
m_adj(m, -IEEE80211_CRC_LEN);
MFp4 changes to fix locking issues and correct reference count handling of station entries in hostap mode: Input path: o driver is now expected to find the node associated with the sender of a received frame; use ic_bss if none is located o driver passes the (referenced) node into ieee80211_input for use within the wlan module and is responsible for cleaning up on return o the antenna state is no longer passed up with each frame; this is now considered driver-private state and drivers are responsible for keeping it in the driver-private part of a node Output path: Revamp output path for management frames to eliminate redundant locking that causes problems and to correct reference counting bogosity that occurs when stations are timed out due to inactivity (in AP mode). On output the refcnt'd node is stashed in the pkthdr's recvif field (yech) and retrieved by the driver. This eliminates an unref/ref scenario and related node table unlock/lock due to the driver looking up the node. This is particularly important when stations are timed out as this causes a lock order reversal that can result in a deadlock. As a byproduct we also reduce the overhead for sending management frames (minimal). Additional fallout from this is a change to ieee80211_encap to return a refcn't node for tieing to the outbound frame. Node refcnts are not reclaimed until after a frame is completely processed (e.g. in the tx interrupt handler). This is especially important for timed out stations as this deref will be the final one causing the node entry to be reclaimed. Additional semi-related changes: o replace m_copym use with m_copypacket (optimization) o add assert to verify ic_bss is never free'd during normal operation o add comments explaining calling conventions by drivers for frames going in each direction o remove extraneous code that "cannot be executed" (e.g. because pointers may never be null)
2003-08-19 22:17:04 +00:00
/*
Update with last year of work.
2004-12-08 17:34:36 +00:00
* Locate the node for sender, track state, and then
* pass the (referenced) node up to the 802.11 layer
Split crypto tx+rx key indices and add a key index -> node mapping table: Crypto changes: o change driver/net80211 key_alloc api to return tx+rx key indices; a driver can leave the rx key index set to IEEE80211_KEYIX_NONE or set it to be the same as the tx key index (the former disables use of the key index in building the keyix->node mapping table and is the default setup for naive drivers by null_key_alloc) o add cs_max_keyid to crypto state to specify the max h/w key index a driver will return; this is used to allocate the key index mapping table and to bounds check table loookups o while here introduce ieee80211_keyix (finally) for the type of a h/w key index o change crypto notifiers for rx failures to pass the rx key index up as appropriate (michael failure, replay, etc.) Node table changes: o optionally allocate a h/w key index to node mapping table for the station table using the max key index setting supplied by drivers (note the scan table does not get a map) o defer node table allocation to lateattach so the driver has a chance to set the max key id to size the key index map o while here also defer the aid bitmap allocation o add new ieee80211_find_rxnode_withkey api to find a sta/node entry on frame receive with an optional h/w key index to use in checking mapping table; also updates the map if it does a hash lookup and the found node has a rx key index set in the unicast key; note this work is separated from the old ieee80211_find_rxnode call so drivers do not need to be aware of the new mechanism o move some node table manipulation under the node table lock to close a race on node delete o add ieee80211_node_delucastkey to do the dirty work of deleting unicast key state for a node (deletes any key and handles key map references) Ath driver: o nuke private sc_keyixmap mechansim in favor of net80211 support o update key alloc api These changes close several race conditions for the ath driver operating in ap mode. Other drivers should see no change. Station mode operation for ath no longer uses the key index map but performance tests show no noticeable change and this will be fixed when the scan table is eliminated with the new scanning support. Tested by: Michal Mertl, avatar, others Reviewed by: avatar, others MFC after: 2 weeks
2005-08-08 18:46:36 +00:00
* for its use.
Maintain a history of data associated with received frames and use this to calculate smoothed signal quality data for each node. o add a 16-deep history buffer to each driver-private node storage that holds rssi and antenna info for received frames o override the default per-node "get rssi" method to return an average rssi value based on samples collected over the last second o enable beacon reception so even idle systems maintain a running history of signal quality This data may also be useful for improving the rate control algorithm. Based on work by Tom Marshall <tommy@home.tig-grr.com> for MADWIFI.
2003-09-15 22:34:46 +00:00
*/
Split crypto tx+rx key indices and add a key index -> node mapping table: Crypto changes: o change driver/net80211 key_alloc api to return tx+rx key indices; a driver can leave the rx key index set to IEEE80211_KEYIX_NONE or set it to be the same as the tx key index (the former disables use of the key index in building the keyix->node mapping table and is the default setup for naive drivers by null_key_alloc) o add cs_max_keyid to crypto state to specify the max h/w key index a driver will return; this is used to allocate the key index mapping table and to bounds check table loookups o while here introduce ieee80211_keyix (finally) for the type of a h/w key index o change crypto notifiers for rx failures to pass the rx key index up as appropriate (michael failure, replay, etc.) Node table changes: o optionally allocate a h/w key index to node mapping table for the station table using the max key index setting supplied by drivers (note the scan table does not get a map) o defer node table allocation to lateattach so the driver has a chance to set the max key id to size the key index map o while here also defer the aid bitmap allocation o add new ieee80211_find_rxnode_withkey api to find a sta/node entry on frame receive with an optional h/w key index to use in checking mapping table; also updates the map if it does a hash lookup and the found node has a rx key index set in the unicast key; note this work is separated from the old ieee80211_find_rxnode call so drivers do not need to be aware of the new mechanism o move some node table manipulation under the node table lock to close a race on node delete o add ieee80211_node_delucastkey to do the dirty work of deleting unicast key state for a node (deletes any key and handles key map references) Ath driver: o nuke private sc_keyixmap mechansim in favor of net80211 support o update key alloc api These changes close several race conditions for the ath driver operating in ap mode. Other drivers should see no change. Station mode operation for ath no longer uses the key index map but performance tests show no noticeable change and this will be fixed when the scan table is eliminated with the new scanning support. Tested by: Michal Mertl, avatar, others Reviewed by: avatar, others MFC after: 2 weeks
2005-08-08 18:46:36 +00:00
ni = ieee80211_find_rxnode_withkey(ic,
mtod(m, const struct ieee80211_frame_min *),
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
rs->rs_keyix == HAL_RXKEYIX_INVALID ?
IEEE80211_KEYIX_NONE : rs->rs_keyix);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if (ni != NULL) {
/*
* Sending station is known, dispatch directly.
*/
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
#ifdef ATH_SUPPORT_TDMA
sc->sc_tdmars = rs;
#endif
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
type = ieee80211_input(ni, m,
rs->rs_rssi, nf, rs->rs_tstamp);
ieee80211_free_node(ni);
/*
* Arrange to update the last rx timestamp only for
* frames from our ap when operating in station mode.
* This assumes the rx key is always setup when
* associated.
*/
if (ic->ic_opmode == IEEE80211_M_STA &&
rs->rs_keyix != HAL_RXKEYIX_INVALID)
ngood++;
} else {
type = ieee80211_input_all(ic, m,
rs->rs_rssi, nf, rs->rs_tstamp);
}
Split crypto tx+rx key indices and add a key index -> node mapping table: Crypto changes: o change driver/net80211 key_alloc api to return tx+rx key indices; a driver can leave the rx key index set to IEEE80211_KEYIX_NONE or set it to be the same as the tx key index (the former disables use of the key index in building the keyix->node mapping table and is the default setup for naive drivers by null_key_alloc) o add cs_max_keyid to crypto state to specify the max h/w key index a driver will return; this is used to allocate the key index mapping table and to bounds check table loookups o while here introduce ieee80211_keyix (finally) for the type of a h/w key index o change crypto notifiers for rx failures to pass the rx key index up as appropriate (michael failure, replay, etc.) Node table changes: o optionally allocate a h/w key index to node mapping table for the station table using the max key index setting supplied by drivers (note the scan table does not get a map) o defer node table allocation to lateattach so the driver has a chance to set the max key id to size the key index map o while here also defer the aid bitmap allocation o add new ieee80211_find_rxnode_withkey api to find a sta/node entry on frame receive with an optional h/w key index to use in checking mapping table; also updates the map if it does a hash lookup and the found node has a rx key index set in the unicast key; note this work is separated from the old ieee80211_find_rxnode call so drivers do not need to be aware of the new mechanism o move some node table manipulation under the node table lock to close a race on node delete o add ieee80211_node_delucastkey to do the dirty work of deleting unicast key state for a node (deletes any key and handles key map references) Ath driver: o nuke private sc_keyixmap mechansim in favor of net80211 support o update key alloc api These changes close several race conditions for the ath driver operating in ap mode. Other drivers should see no change. Station mode operation for ath no longer uses the key index map but performance tests show no noticeable change and this will be fixed when the scan table is eliminated with the new scanning support. Tested by: Michal Mertl, avatar, others Reviewed by: avatar, others MFC after: 2 weeks
2005-08-08 18:46:36 +00:00
/*
* Track rx rssi and do any rx antenna management.
*/
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
ATH_RSSI_LPF(sc->sc_halstats.ns_avgrssi, rs->rs_rssi);
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (sc->sc_diversity) {
/*
* When using fast diversity, change the default rx
* antenna if diversity chooses the other antenna 3
* times in a row.
*/
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
if (sc->sc_defant != rs->rs_antenna) {
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (++sc->sc_rxotherant >= 3)
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
ath_setdefantenna(sc, rs->rs_antenna);
Update with last year of work.
2004-12-08 17:34:36 +00:00
} else
sc->sc_rxotherant = 0;
}
better led blinking
2005-01-18 19:03:04 +00:00
if (sc->sc_softled) {
/*
* Blink for any data frame. Otherwise do a
* heartbeat-style blink when idle. The latter
* is mainly for station mode where we depend on
* periodic beacon frames to trigger the poll event.
*/
use frame type returned by ieee80211_input to drive softled code instead of monitoring the input packet count
2005-04-04 02:34:15 +00:00
if (type == IEEE80211_FC0_TYPE_DATA) {
o With the addition of HT rates the set of h/w codes has a much wider range making the use of sc_hwmap to do direct mapping impractical. Switch to indexing by the rate index instead of the rate code and adjust associated state and logic appropriately. This has several benefits including simplification of the led code. o fix radiotap capture of HT rates o fix conditional compilation of HT radiotap support to be based on the hal having 5416 support; not the ABI version as hal builds may or may not include 5416 support
2008-10-27 18:22:44 +00:00
const HAL_RATE_TABLE *rt = sc->sc_currates;
ath_led_event(sc,
rt->rateCodeToIndex[rs->rs_rate]);
better led blinking
2005-01-18 19:03:04 +00:00
} else if (ticks - sc->sc_ledevent >= sc->sc_ledidle)
o With the addition of HT rates the set of h/w codes has a much wider range making the use of sc_hwmap to do direct mapping impractical. Switch to indexing by the rate index instead of the rate code and adjust associated state and logic appropriately. This has several benefits including simplification of the led code. o fix radiotap capture of HT rates o fix conditional compilation of HT radiotap support to be based on the hal having 5416 support; not the ABI version as hal builds may or may not include 5416 support
2008-10-27 18:22:44 +00:00
ath_led_event(sc, 0);
better led blinking
2005-01-18 19:03:04 +00:00
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
rx_next:
STAILQ_INSERT_TAIL(&sc->sc_rxbuf, bf, bf_list);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
} while (ath_rxbuf_init(sc, bf) == 0);
Update with last year of work.
2004-12-08 17:34:36 +00:00
/* rx signal state monitoring */
Update for rev 0.9.16.16 hal: o add dfs+radar hooks; DFS is presently disabled in the hal o channel and mode handling changes o various api changes o be more aggressive about iq calibration settling so ap mode operation is better immediately after startup o rfkill/rfsilent sysctl support o tpc ack/cts sysctl support MFC after: 2 weeks
2006-02-10 19:07:08 +00:00
ath_hal_rxmonitor(ah, &sc->sc_halstats, &sc->sc_curchan);
Phantom beacon miss workaround: track the tsf of the last received frame and if we get a beacon miss interrupt ignore it if we've received a frame within the beacon miss interval. This should never trigger and the handling at the net80211 layer should likewise deal with this but it doesn't hurt and can suppress extranous probe request frames. Note that we can legtimately get a bmiss when under heavy load. MFC after: 2 weeks
2006-02-09 22:03:26 +00:00
if (ngood)
sc->sc_lastrx = tsf;
Pickup Giant in ath_rx_proc and when handling a beacon miss in order to satisfy the assertion in if_start.
2004-08-07 00:45:05 +00:00
Kick tx after processing rx'd frames; this fixes latency issues for processing frames from the power save queue when operating in ap mode. This is especially noticeable for realtime data going to devices like voip phones. Submitted by: "J.R. Oldroyd" <jr@opal.com> MFC after: 2 weeks
2007-03-05 21:53:49 +00:00
if ((ifp->if_drv_flags & IFF_DRV_OACTIVE) == 0 &&
!IFQ_IS_EMPTY(&ifp->if_snd))
ath_start(ifp);
o track API change for HAL v0.9.6.1 o fix race condition when processing rx descriptors: because we use a self-linked descriptor at the end of the rx descriptor list to avoid rx overruns (which can easily happen for 5212 parts that enable PHY errors) we must carefully check that a descriptor is "done" by looking ahead to the next descriptor before believing the done bit in the current descriptor (this is all handled in the HAL since the rx descriptor format is chip-specific so we need to pass in two additional parameters--the physical address of the current descriptor and the virtual address of the next descriptor in the list) o check copyout return status for SIOCGATHSTATS ioctl Approved by: re (scottl)
2003-11-29 01:23:59 +00:00
#undef PA2DESC
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Close race in handling mcast traffic when operating as an ap with stations in power save: add a new q where mcast frames are stashed and on beacon update (at DTIM) move frames from the mcast q to the cabq and start it. This ensures the cabq is only manipulated in one place. Sponsored by: Hobnob MFC after: 2 weeks
2006-06-26 03:10:45 +00:00
static void
ath_txq_init(struct ath_softc *sc, struct ath_txq *txq, int qnum)
{
txq->axq_qnum = qnum;
txq->axq_depth = 0;
txq->axq_intrcnt = 0;
txq->axq_link = NULL;
STAILQ_INIT(&txq->axq_q);
ATH_TXQ_LOCK_INIT(sc, txq);
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
TAILQ_INIT(&txq->axq_stageq);
txq->axq_curage = 0;
Close race in handling mcast traffic when operating as an ap with stations in power save: add a new q where mcast frames are stashed and on beacon update (at DTIM) move frames from the mcast q to the cabq and start it. This ensures the cabq is only manipulated in one place. Sponsored by: Hobnob MFC after: 2 weeks
2006-06-26 03:10:45 +00:00
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
/*
Update with last year of work.
2004-12-08 17:34:36 +00:00
* Setup a h/w transmit queue.
*/
static struct ath_txq *
ath_txq_setup(struct ath_softc *sc, int qtype, int subtype)
{
#define N(a) (sizeof(a)/sizeof(a[0]))
struct ath_hal *ah = sc->sc_ah;
HAL_TXQ_INFO qi;
int qnum;
memset(&qi, 0, sizeof(qi));
qi.tqi_subtype = subtype;
qi.tqi_aifs = HAL_TXQ_USEDEFAULT;
qi.tqi_cwmin = HAL_TXQ_USEDEFAULT;
qi.tqi_cwmax = HAL_TXQ_USEDEFAULT;
/*
* Enable interrupts only for EOL and DESC conditions.
* We mark tx descriptors to receive a DESC interrupt
* when a tx queue gets deep; otherwise waiting for the
* EOL to reap descriptors. Note that this is done to
* reduce interrupt load and this only defers reaping
* descriptors, never transmitting frames. Aside from
* reducing interrupts this also permits more concurrency.
* The only potential downside is if the tx queue backs
* up in which case the top half of the kernel may backup
* due to a lack of tx descriptors.
*/
Update for rev 0.9.16.16 hal: o add dfs+radar hooks; DFS is presently disabled in the hal o channel and mode handling changes o various api changes o be more aggressive about iq calibration settling so ap mode operation is better immediately after startup o rfkill/rfsilent sysctl support o tpc ack/cts sysctl support MFC after: 2 weeks
2006-02-10 19:07:08 +00:00
qi.tqi_qflags = HAL_TXQ_TXEOLINT_ENABLE | HAL_TXQ_TXDESCINT_ENABLE;
Update with last year of work.
2004-12-08 17:34:36 +00:00
qnum = ath_hal_setuptxqueue(ah, qtype, &qi);
if (qnum == -1) {
/*
Misc keycache changes: o purge ath_initkeytable; it's not needed o add multicast key search support for supporting multiple group keys (disabled for now; requires updated hal) o create keycache entry for stations using open auth so they get h/w antenna management support o add keycache -> node mapping table; eliminates mac-based lookup in the net80211 layer
2005-06-06 16:39:21 +00:00
* NB: don't print a message, this happens
correct some typos Submitted by: Tai-hwa Liang
2004-12-31 20:35:05 +00:00
* normally on parts with too few tx queues
Update with last year of work.
2004-12-08 17:34:36 +00:00
*/
return NULL;
}
if (qnum >= N(sc->sc_txq)) {
Make this amd64-clean. sizeof is long on amd64, so things that do a printf of a sizeof, need to use %z to get the correct type on all our platforms. Also, convert integers<->pointers via uintptr_t. (I think Sam's instructions were for me to commit this. If I misunderstood, then I apologize in advance.)
2004-12-15 02:25:21 +00:00
device_printf(sc->sc_dev,
"hal qnum %u out of range, max %zu!\n",
Update with last year of work.
2004-12-08 17:34:36 +00:00
qnum, N(sc->sc_txq));
ath_hal_releasetxqueue(ah, qnum);
return NULL;
}
if (!ATH_TXQ_SETUP(sc, qnum)) {
Close race in handling mcast traffic when operating as an ap with stations in power save: add a new q where mcast frames are stashed and on beacon update (at DTIM) move frames from the mcast q to the cabq and start it. This ensures the cabq is only manipulated in one place. Sponsored by: Hobnob MFC after: 2 weeks
2006-06-26 03:10:45 +00:00
ath_txq_init(sc, &sc->sc_txq[qnum], qnum);
Update with last year of work.
2004-12-08 17:34:36 +00:00
sc->sc_txqsetup |= 1<<qnum;
}
return &sc->sc_txq[qnum];
#undef N
}
/*
* Setup a hardware data transmit queue for the specified
* access control. The hal may not support all requested
* queues in which case it will return a reference to a
* previously setup queue. We record the mapping from ac's
* to h/w queues for use by ath_tx_start and also track
* the set of h/w queues being used to optimize work in the
* transmit interrupt handler and related routines.
*/
static int
ath_tx_setup(struct ath_softc *sc, int ac, int haltype)
{
#define N(a) (sizeof(a)/sizeof(a[0]))
struct ath_txq *txq;
if (ac >= N(sc->sc_ac2q)) {
Make this amd64-clean. sizeof is long on amd64, so things that do a printf of a sizeof, need to use %z to get the correct type on all our platforms. Also, convert integers<->pointers via uintptr_t. (I think Sam's instructions were for me to commit this. If I misunderstood, then I apologize in advance.)
2004-12-15 02:25:21 +00:00
device_printf(sc->sc_dev, "AC %u out of range, max %zu!\n",
Update with last year of work.
2004-12-08 17:34:36 +00:00
ac, N(sc->sc_ac2q));
return 0;
}
txq = ath_txq_setup(sc, HAL_TX_QUEUE_DATA, haltype);
if (txq != NULL) {
sc->sc_ac2q[ac] = txq;
return 1;
} else
return 0;
#undef N
}
/*
* Update WME parameters for a transmit queue.
*/
static int
ath_txq_update(struct ath_softc *sc, int ac)
{
#define ATH_EXPONENT_TO_VALUE(v) ((1<<v)-1)
#define ATH_TXOP_TO_US(v) (v<<5)
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
struct ifnet *ifp = sc->sc_ifp;
struct ieee80211com *ic = ifp->if_l2com;
Update with last year of work.
2004-12-08 17:34:36 +00:00
struct ath_txq *txq = sc->sc_ac2q[ac];
struct wmeParams *wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac];
struct ath_hal *ah = sc->sc_ah;
HAL_TXQ_INFO qi;
ath_hal_gettxqueueprops(ah, txq->axq_qnum, &qi);
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
#ifdef ATH_SUPPORT_TDMA
if (sc->sc_tdma) {
/*
* AIFS is zero so there's no pre-transmit wait. The
* burst time defines the slot duration and is configured
* via sysctl. The QCU is setup to not do post-xmit
* back off, lockout all lower-priority QCU's, and fire
* off the DMA beacon alert timer which is setup based
* on the slot configuration.
*/
qi.tqi_qflags = HAL_TXQ_TXOKINT_ENABLE
| HAL_TXQ_TXERRINT_ENABLE
| HAL_TXQ_TXURNINT_ENABLE
| HAL_TXQ_TXEOLINT_ENABLE
| HAL_TXQ_DBA_GATED
| HAL_TXQ_BACKOFF_DISABLE
| HAL_TXQ_ARB_LOCKOUT_GLOBAL
;
qi.tqi_aifs = 0;
/* XXX +dbaprep? */
qi.tqi_readyTime = sc->sc_tdmaslotlen;
qi.tqi_burstTime = qi.tqi_readyTime;
} else {
#endif
qi.tqi_qflags = HAL_TXQ_TXOKINT_ENABLE
| HAL_TXQ_TXERRINT_ENABLE
| HAL_TXQ_TXDESCINT_ENABLE
| HAL_TXQ_TXURNINT_ENABLE
;
qi.tqi_aifs = wmep->wmep_aifsn;
qi.tqi_cwmin = ATH_EXPONENT_TO_VALUE(wmep->wmep_logcwmin);
qi.tqi_cwmax = ATH_EXPONENT_TO_VALUE(wmep->wmep_logcwmax);
qi.tqi_readyTime = 0;
qi.tqi_burstTime = ATH_TXOP_TO_US(wmep->wmep_txopLimit);
#ifdef ATH_SUPPORT_TDMA
}
#endif
DPRINTF(sc, ATH_DEBUG_RESET,
"%s: Q%u qflags 0x%x aifs %u cwmin %u cwmax %u burstTime %u\n",
__func__, txq->axq_qnum, qi.tqi_qflags,
qi.tqi_aifs, qi.tqi_cwmin, qi.tqi_cwmax, qi.tqi_burstTime);
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (!ath_hal_settxqueueprops(ah, txq->axq_qnum, &qi)) {
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if_printf(ifp, "unable to update hardware queue "
Update with last year of work.
2004-12-08 17:34:36 +00:00
"parameters for %s traffic!\n",
ieee80211_wme_acnames[ac]);
return 0;
} else {
ath_hal_resettxqueue(ah, txq->axq_qnum); /* push to h/w */
return 1;
}
#undef ATH_TXOP_TO_US
#undef ATH_EXPONENT_TO_VALUE
}
/*
* Callback from the 802.11 layer to update WME parameters.
*/
Misc keycache changes: o purge ath_initkeytable; it's not needed o add multicast key search support for supporting multiple group keys (disabled for now; requires updated hal) o create keycache entry for stations using open auth so they get h/w antenna management support o add keycache -> node mapping table; eliminates mac-based lookup in the net80211 layer
2005-06-06 16:39:21 +00:00
static int
Update with last year of work.
2004-12-08 17:34:36 +00:00
ath_wme_update(struct ieee80211com *ic)
{
struct ath_softc *sc = ic->ic_ifp->if_softc;
return !ath_txq_update(sc, WME_AC_BE) ||
!ath_txq_update(sc, WME_AC_BK) ||
!ath_txq_update(sc, WME_AC_VI) ||
!ath_txq_update(sc, WME_AC_VO) ? EIO : 0;
}
/*
* Reclaim resources for a setup queue.
*/
static void
ath_tx_cleanupq(struct ath_softc *sc, struct ath_txq *txq)
{
ath_hal_releasetxqueue(sc->sc_ah, txq->axq_qnum);
ATH_TXQ_LOCK_DESTROY(txq);
sc->sc_txqsetup &= ~(1<<txq->axq_qnum);
}
/*
* Reclaim all tx queue resources.
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
*/
Update with last year of work.
2004-12-08 17:34:36 +00:00
static void
ath_tx_cleanup(struct ath_softc *sc)
{
int i;
ATH_TXBUF_LOCK_DESTROY(sc);
for (i = 0; i < HAL_NUM_TX_QUEUES; i++)
if (ATH_TXQ_SETUP(sc, i))
ath_tx_cleanupq(sc, &sc->sc_txq[i]);
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
honor net80211 mcast tx rate MFC after: 2 weeks
2006-02-09 21:15:36 +00:00
/*
* Return h/w rate index for an IEEE rate (w/o basic rate bit).
*/
static int
ath_tx_findrix(const HAL_RATE_TABLE *rt, int rate)
{
int i;
for (i = 0; i < rt->rateCount; i++)
if ((rt->info[i].dot11Rate & IEEE80211_RATE_VAL) == rate)
return i;
return 0; /* NB: lowest rate */
}
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
/*
* Reclaim mbuf resources. For fragmented frames we
* need to claim each frag chained with m_nextpkt.
*/
static void
ath_freetx(struct mbuf *m)
{
struct mbuf *next;
do {
next = m->m_nextpkt;
m->m_nextpkt = NULL;
m_freem(m);
} while ((m = next) != NULL);
}
raw 802.11 packet transmit support Joint work with: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
2006-08-05 05:07:17 +00:00
static int
ath_tx_dmasetup(struct ath_softc *sc, struct ath_buf *bf, struct mbuf *m0)
{
struct mbuf *m;
int error;
/*
* Load the DMA map so any coalescing is done. This
* also calculates the number of descriptors we need.
*/
error = bus_dmamap_load_mbuf_sg(sc->sc_dmat, bf->bf_dmamap, m0,
bf->bf_segs, &bf->bf_nseg,
BUS_DMA_NOWAIT);
if (error == EFBIG) {
/* XXX packet requires too many descriptors */
bf->bf_nseg = ATH_TXDESC+1;
} else if (error != 0) {
sc->sc_stats.ast_tx_busdma++;
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
ath_freetx(m0);
raw 802.11 packet transmit support Joint work with: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
2006-08-05 05:07:17 +00:00
return error;
}
/*
* Discard null packets and check for packets that
* require too many TX descriptors. We try to convert
* the latter to a cluster.
*/
if (bf->bf_nseg > ATH_TXDESC) { /* too many desc's, linearize */
sc->sc_stats.ast_tx_linear++;
promote ath_defrag to m_collapse (and retire private+unused m_collapse from cxgb) Reviewed by: pyun, jhb, kmacy MFC after: 2 weeks
2008-01-17 21:25:09 +00:00
m = m_collapse(m0, M_DONTWAIT, ATH_TXDESC);
raw 802.11 packet transmit support Joint work with: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
2006-08-05 05:07:17 +00:00
if (m == NULL) {
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
ath_freetx(m0);
raw 802.11 packet transmit support Joint work with: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
2006-08-05 05:07:17 +00:00
sc->sc_stats.ast_tx_nombuf++;
return ENOMEM;
}
m0 = m;
error = bus_dmamap_load_mbuf_sg(sc->sc_dmat, bf->bf_dmamap, m0,
bf->bf_segs, &bf->bf_nseg,
BUS_DMA_NOWAIT);
if (error != 0) {
sc->sc_stats.ast_tx_busdma++;
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
ath_freetx(m0);
raw 802.11 packet transmit support Joint work with: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
2006-08-05 05:07:17 +00:00
return error;
}
KASSERT(bf->bf_nseg <= ATH_TXDESC,
("too many segments after defrag; nseg %u", bf->bf_nseg));
} else if (bf->bf_nseg == 0) { /* null packet, discard */
sc->sc_stats.ast_tx_nodata++;
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
ath_freetx(m0);
raw 802.11 packet transmit support Joint work with: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
2006-08-05 05:07:17 +00:00
return EIO;
}
DPRINTF(sc, ATH_DEBUG_XMIT, "%s: m %p len %u\n",
__func__, m0, m0->m_pkthdr.len);
bus_dmamap_sync(sc->sc_dmat, bf->bf_dmamap, BUS_DMASYNC_PREWRITE);
bf->bf_m = m0;
return 0;
}
static void
ath_tx_handoff(struct ath_softc *sc, struct ath_txq *txq, struct ath_buf *bf)
{
struct ath_hal *ah = sc->sc_ah;
struct ath_desc *ds, *ds0;
int i;
/*
* Fillin the remainder of the descriptor info.
*/
ds0 = ds = bf->bf_desc;
for (i = 0; i < bf->bf_nseg; i++, ds++) {
ds->ds_data = bf->bf_segs[i].ds_addr;
if (i == bf->bf_nseg - 1)
ds->ds_link = 0;
else
ds->ds_link = bf->bf_daddr + sizeof(*ds) * (i + 1);
ath_hal_filltxdesc(ah, ds
, bf->bf_segs[i].ds_len /* segment length */
, i == 0 /* first segment */
, i == bf->bf_nseg - 1 /* last segment */
, ds0 /* first descriptor */
);
DPRINTF(sc, ATH_DEBUG_XMIT,
"%s: %d: %08x %08x %08x %08x %08x %08x\n",
__func__, i, ds->ds_link, ds->ds_data,
ds->ds_ctl0, ds->ds_ctl1, ds->ds_hw[0], ds->ds_hw[1]);
}
/*
* Insert the frame on the outbound list and pass it on
* to the hardware. Multicast frames buffered for power
* save stations and transmit from the CAB queue are stored
* on a s/w only queue and loaded on to the CAB queue in
* the SWBA handler since frames only go out on DTIM and
* to avoid possible races.
*/
ATH_TXQ_LOCK(txq);
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
KASSERT((bf->bf_flags & ATH_BUF_BUSY) == 0,
("busy status 0x%x", bf->bf_flags));
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if (txq->axq_qnum != ATH_TXQ_SWQ) {
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
#ifdef ATH_SUPPORT_TDMA
int qbusy;
ATH_TXQ_INSERT_TAIL(txq, bf, bf_list);
qbusy = ath_hal_txqenabled(ah, txq->axq_qnum);
if (txq->axq_link == NULL) {
/*
* Be careful writing the address to TXDP. If
* the tx q is enabled then this write will be
* ignored. Normally this is not an issue but
* when tdma is in use and the q is beacon gated
* this race can occur. If the q is busy then
* defer the work to later--either when another
* packet comes along or when we prepare a beacon
* frame at SWBA.
*/
if (!qbusy) {
ath_hal_puttxbuf(ah, txq->axq_qnum, bf->bf_daddr);
txq->axq_flags &= ~ATH_TXQ_PUTPENDING;
DPRINTF(sc, ATH_DEBUG_XMIT,
"%s: TXDP[%u] = %p (%p) depth %d\n",
__func__, txq->axq_qnum,
(caddr_t)bf->bf_daddr, bf->bf_desc,
txq->axq_depth);
} else {
txq->axq_flags |= ATH_TXQ_PUTPENDING;
DPRINTF(sc, ATH_DEBUG_TDMA | ATH_DEBUG_XMIT,
"%s: Q%u busy, defer enable\n", __func__,
txq->axq_qnum);
}
} else {
*txq->axq_link = bf->bf_daddr;
DPRINTF(sc, ATH_DEBUG_XMIT,
"%s: link[%u](%p)=%p (%p) depth %d\n", __func__,
txq->axq_qnum, txq->axq_link,
(caddr_t)bf->bf_daddr, bf->bf_desc, txq->axq_depth);
if ((txq->axq_flags & ATH_TXQ_PUTPENDING) && !qbusy) {
/*
* The q was busy when we previously tried
* to write the address of the first buffer
* in the chain. Since it's not busy now
* handle this chore. We are certain the
* buffer at the front is the right one since
* axq_link is NULL only when the buffer list
* is/was empty.
*/
ath_hal_puttxbuf(ah, txq->axq_qnum,
STAILQ_FIRST(&txq->axq_q)->bf_daddr);
txq->axq_flags &= ~ATH_TXQ_PUTPENDING;
DPRINTF(sc, ATH_DEBUG_TDMA | ATH_DEBUG_XMIT,
"%s: Q%u restarted\n", __func__,
txq->axq_qnum);
}
}
#else
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ATH_TXQ_INSERT_TAIL(txq, bf, bf_list);
raw 802.11 packet transmit support Joint work with: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
2006-08-05 05:07:17 +00:00
if (txq->axq_link == NULL) {
ath_hal_puttxbuf(ah, txq->axq_qnum, bf->bf_daddr);
DPRINTF(sc, ATH_DEBUG_XMIT,
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
"%s: TXDP[%u] = %p (%p) depth %d\n",
__func__, txq->axq_qnum,
(caddr_t)bf->bf_daddr, bf->bf_desc,
raw 802.11 packet transmit support Joint work with: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
2006-08-05 05:07:17 +00:00
txq->axq_depth);
} else {
*txq->axq_link = bf->bf_daddr;
DPRINTF(sc, ATH_DEBUG_XMIT,
"%s: link[%u](%p)=%p (%p) depth %d\n", __func__,
txq->axq_qnum, txq->axq_link,
(caddr_t)bf->bf_daddr, bf->bf_desc, txq->axq_depth);
}
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
#endif /* ATH_SUPPORT_TDMA */
raw 802.11 packet transmit support Joint work with: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
2006-08-05 05:07:17 +00:00
txq->axq_link = &bf->bf_desc[bf->bf_nseg - 1].ds_link;
ath_hal_txstart(ah, txq->axq_qnum);
} else {
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if (txq->axq_link != NULL) {
struct ath_buf *last = ATH_TXQ_LAST(txq);
struct ieee80211_frame *wh;
/* mark previous frame */
wh = mtod(last->bf_m, struct ieee80211_frame *);
wh->i_fc[1] |= IEEE80211_FC1_MORE_DATA;
bus_dmamap_sync(sc->sc_dmat, last->bf_dmamap,
BUS_DMASYNC_PREWRITE);
/* link descriptor */
raw 802.11 packet transmit support Joint work with: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
2006-08-05 05:07:17 +00:00
*txq->axq_link = bf->bf_daddr;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
}
ATH_TXQ_INSERT_TAIL(txq, bf, bf_list);
raw 802.11 packet transmit support Joint work with: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
2006-08-05 05:07:17 +00:00
txq->axq_link = &bf->bf_desc[bf->bf_nseg - 1].ds_link;
}
ATH_TXQ_UNLOCK(txq);
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
static int
ath_tx_start(struct ath_softc *sc, struct ieee80211_node *ni, struct ath_buf *bf,
struct mbuf *m0)
{
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
struct ieee80211vap *vap = ni->ni_vap;
struct ath_vap *avp = ATH_VAP(vap);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
struct ath_hal *ah = sc->sc_ah;
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
struct ifnet *ifp = sc->sc_ifp;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
struct ieee80211com *ic = ifp->if_l2com;
o extend cts to cover packet burst when operating in 11g w/ protection o check current channel parameters, not shadow state, for acm policy on data frames
2005-03-30 20:13:08 +00:00
const struct chanAccParams *cap = &ic->ic_wme.wme_chanParams;
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
int error, iswep, ismcast, isfrag, ismrr;
lower try count on mgt (and ctl) frames to avoid clogging the tx queue and loading the bss when operating in ap mode under load; adjust recognition of multi-rate retry to match MFC after: 2 weeks
2006-02-09 20:57:48 +00:00
int keyix, hdrlen, pktlen, try0;
Update with last year of work.
2004-12-08 17:34:36 +00:00
u_int8_t rix, txrate, ctsrate;
u_int8_t cix = 0xff; /* NB: silence compiler */
raw 802.11 packet transmit support Joint work with: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
2006-08-05 05:07:17 +00:00
struct ath_desc *ds;
Update with last year of work.
2004-12-08 17:34:36 +00:00
struct ath_txq *txq;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
struct ieee80211_frame *wh;
Update with last year of work.
2004-12-08 17:34:36 +00:00
u_int subtype, flags, ctsduration;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
HAL_PKT_TYPE atype;
const HAL_RATE_TABLE *rt;
HAL_BOOL shortPreamble;
struct ath_node *an;
o extend cts to cover packet burst when operating in 11g w/ protection o check current channel parameters, not shadow state, for acm policy on data frames
2005-03-30 20:13:08 +00:00
u_int pri;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
wh = mtod(m0, struct ieee80211_frame *);
iswep = wh->i_fc[1] & IEEE80211_FC1_WEP;
Update with last year of work.
2004-12-08 17:34:36 +00:00
ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1);
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
isfrag = m0->m_flags & M_FRAG;
Update with last year of work.
2004-12-08 17:34:36 +00:00
hdrlen = ieee80211_anyhdrsize(wh);
/*
correct some typos Submitted by: Tai-hwa Liang
2004-12-31 20:35:05 +00:00
* Packet length must not include any
* pad bytes; deduct them here.
Update with last year of work.
2004-12-08 17:34:36 +00:00
*/
pktlen = m0->m_pkthdr.len - (hdrlen & 3);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
if (iswep) {
Update with last year of work.
2004-12-08 17:34:36 +00:00
const struct ieee80211_cipher *cip;
struct ieee80211_key *k;
Reduce per-packet overhead when using WEP by using an advancing IV seeded with arc4random rather than calling arc4random for each packet. Note this is the same algorithm used to select the IV when doing WEP on the host.
2003-10-13 03:42:53 +00:00
/*
Update with last year of work.
2004-12-08 17:34:36 +00:00
* Construct the 802.11 header+trailer for an encrypted
* frame. The only reason this can fail is because of an
* unknown or unsupported cipher/key type.
Reduce per-packet overhead when using WEP by using an advancing IV seeded with arc4random rather than calling arc4random for each packet. Note this is the same algorithm used to select the IV when doing WEP on the host.
2003-10-13 03:42:53 +00:00
*/
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
k = ieee80211_crypto_encap(ni, m0);
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (k == NULL) {
/*
* This can happen when the key is yanked after the
* frame was queued. Just discard the frame; the
* 802.11 layer counts failures and provides
* debugging/diagnostics.
*/
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
ath_freetx(m0);
Update with last year of work.
2004-12-08 17:34:36 +00:00
return EIO;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
/*
Update with last year of work.
2004-12-08 17:34:36 +00:00
* Adjust the packet + header lengths for the crypto
* additions and calculate the h/w key index. When
* a s/w mic is done the frame will have had any mic
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
* added to it prior to entry so m0->m_pkthdr.len will
Update with last year of work.
2004-12-08 17:34:36 +00:00
* account for it. Otherwise we need to add it to the
* packet length.
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
*/
Update with last year of work.
2004-12-08 17:34:36 +00:00
cip = k->wk_cipher;
hdrlen += cip->ic_header;
pktlen += cip->ic_header + cip->ic_trailer;
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
/* NB: frags always have any TKIP MIC done in s/w */
if ((k->wk_flags & IEEE80211_KEY_SWMIC) == 0 && !isfrag)
Update with last year of work.
2004-12-08 17:34:36 +00:00
pktlen += cip->ic_miclen;
keyix = k->wk_keyix;
/* packet header may have moved, reset our local pointer */
wh = mtod(m0, struct ieee80211_frame *);
Misc keycache changes: o purge ath_initkeytable; it's not needed o add multicast key search support for supporting multiple group keys (disabled for now; requires updated hal) o create keycache entry for stations using open auth so they get h/w antenna management support o add keycache -> node mapping table; eliminates mac-based lookup in the net80211 layer
2005-06-06 16:39:21 +00:00
} else if (ni->ni_ucastkey.wk_cipher == &ieee80211_cipher_none) {
/*
* Use station key cache slot, if assigned.
*/
keyix = ni->ni_ucastkey.wk_keyix;
if (keyix == IEEE80211_KEYIX_NONE)
keyix = HAL_TXKEYIX_INVALID;
Update with last year of work.
2004-12-08 17:34:36 +00:00
} else
keyix = HAL_TXKEYIX_INVALID;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
pktlen += IEEE80211_CRC_LEN;
/*
* Load the DMA map so any coalescing is done. This
* also calculates the number of descriptors we need.
*/
raw 802.11 packet transmit support Joint work with: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
2006-08-05 05:07:17 +00:00
error = ath_tx_dmasetup(sc, bf, m0);
check return value of ath_tx_dmasetup Noticed by: yongari
2006-08-08 16:42:01 +00:00
if (error != 0)
return error;
MFp4 changes to fix locking issues and correct reference count handling of station entries in hostap mode: Input path: o driver is now expected to find the node associated with the sender of a received frame; use ic_bss if none is located o driver passes the (referenced) node into ieee80211_input for use within the wlan module and is responsible for cleaning up on return o the antenna state is no longer passed up with each frame; this is now considered driver-private state and drivers are responsible for keeping it in the driver-private part of a node Output path: Revamp output path for management frames to eliminate redundant locking that causes problems and to correct reference counting bogosity that occurs when stations are timed out due to inactivity (in AP mode). On output the refcnt'd node is stashed in the pkthdr's recvif field (yech) and retrieved by the driver. This eliminates an unref/ref scenario and related node table unlock/lock due to the driver looking up the node. This is particularly important when stations are timed out as this causes a lock order reversal that can result in a deadlock. As a byproduct we also reduce the overhead for sending management frames (minimal). Additional fallout from this is a change to ieee80211_encap to return a refcn't node for tieing to the outbound frame. Node refcnts are not reclaimed until after a frame is completely processed (e.g. in the tx interrupt handler). This is especially important for timed out stations as this deref will be the final one causing the node entry to be reclaimed. Additional semi-related changes: o replace m_copym use with m_copypacket (optimization) o add assert to verify ic_bss is never free'd during normal operation o add comments explaining calling conventions by drivers for frames going in each direction o remove extraneous code that "cannot be executed" (e.g. because pointers may never be null)
2003-08-19 22:17:04 +00:00
bf->bf_node = ni; /* NB: held reference */
raw 802.11 packet transmit support Joint work with: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
2006-08-05 05:07:17 +00:00
m0 = bf->bf_m; /* NB: may have changed */
wh = mtod(m0, struct ieee80211_frame *);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
/* setup descriptors */
ds = bf->bf_desc;
rt = sc->sc_currates;
KASSERT(rt != NULL, ("no rate table, mode %u", sc->sc_curmode));
/*
Update with last year of work.
2004-12-08 17:34:36 +00:00
* NB: the 802.11 layer marks whether or not we should
* use short preamble based on the current mode and
* negotiated parameters.
*/
if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) &&
(ni->ni_capinfo & IEEE80211_CAPINFO_SHORT_PREAMBLE)) {
shortPreamble = AH_TRUE;
sc->sc_stats.ast_tx_shortpre++;
} else {
shortPreamble = AH_FALSE;
}
an = ATH_NODE(ni);
flags = HAL_TXDESC_CLRDMASK; /* XXX needed for crypto errs */
lower try count on mgt (and ctl) frames to avoid clogging the tx queue and loading the bss when operating in ap mode under load; adjust recognition of multi-rate retry to match MFC after: 2 weeks
2006-02-09 20:57:48 +00:00
ismrr = 0; /* default no multi-rate retry*/
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
pri = M_WME_GETAC(m0); /* honor classification */
send EAPOL frames at the same rate used for mgt frames
2008-05-28 23:41:40 +00:00
/* XXX use txparams instead of fixed values */
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* Calculate Atheros packet type from IEEE80211 packet header,
* setup for rate calculations, and select h/w transmit queue.
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
*/
switch (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) {
case IEEE80211_FC0_TYPE_MGT:
subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
if (subtype == IEEE80211_FC0_SUBTYPE_BEACON)
atype = HAL_PKT_TYPE_BEACON;
else if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP)
atype = HAL_PKT_TYPE_PROBE_RESP;
else if (subtype == IEEE80211_FC0_SUBTYPE_ATIM)
atype = HAL_PKT_TYPE_ATIM;
Update with last year of work.
2004-12-08 17:34:36 +00:00
else
atype = HAL_PKT_TYPE_NORMAL; /* XXX */
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
rix = an->an_mgmtrix;
move mgt frame tx rate responsibility from the rate control modules to the driver; this avoids redundant logic and will be necessary for future additions MFC after: 2 weeks
2006-02-09 20:49:55 +00:00
txrate = rt->info[rix].rateCode;
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (shortPreamble)
move mgt frame tx rate responsibility from the rate control modules to the driver; this avoids redundant logic and will be necessary for future additions MFC after: 2 weeks
2006-02-09 20:49:55 +00:00
txrate |= rt->info[rix].shortPreamble;
lower try count on mgt (and ctl) frames to avoid clogging the tx queue and loading the bss when operating in ap mode under load; adjust recognition of multi-rate retry to match MFC after: 2 weeks
2006-02-09 20:57:48 +00:00
try0 = ATH_TXMGTTRY;
Update with last year of work.
2004-12-08 17:34:36 +00:00
flags |= HAL_TXDESC_INTREQ; /* force interrupt */
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
break;
case IEEE80211_FC0_TYPE_CTL:
Update with last year of work.
2004-12-08 17:34:36 +00:00
atype = HAL_PKT_TYPE_PSPOLL; /* stop setting of duration */
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
rix = an->an_mgmtrix;
move mgt frame tx rate responsibility from the rate control modules to the driver; this avoids redundant logic and will be necessary for future additions MFC after: 2 weeks
2006-02-09 20:49:55 +00:00
txrate = rt->info[rix].rateCode;
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (shortPreamble)
move mgt frame tx rate responsibility from the rate control modules to the driver; this avoids redundant logic and will be necessary for future additions MFC after: 2 weeks
2006-02-09 20:49:55 +00:00
txrate |= rt->info[rix].shortPreamble;
lower try count on mgt (and ctl) frames to avoid clogging the tx queue and loading the bss when operating in ap mode under load; adjust recognition of multi-rate retry to match MFC after: 2 weeks
2006-02-09 20:57:48 +00:00
try0 = ATH_TXMGTTRY;
Update with last year of work.
2004-12-08 17:34:36 +00:00
flags |= HAL_TXDESC_INTREQ; /* force interrupt */
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
break;
Update with last year of work.
2004-12-08 17:34:36 +00:00
case IEEE80211_FC0_TYPE_DATA:
atype = HAL_PKT_TYPE_NORMAL; /* default */
/*
honor net80211 mcast tx rate MFC after: 2 weeks
2006-02-09 21:15:36 +00:00
* Data frames: multicast frames go out at a fixed rate,
send EAPOL frames at the same rate used for mgt frames
2008-05-28 23:41:40 +00:00
* EAPOL frames use the mgmt frame rate; otherwise consult
* the rate control module for the rate to use.
Update with last year of work.
2004-12-08 17:34:36 +00:00
*/
honor net80211 mcast tx rate MFC after: 2 weeks
2006-02-09 21:15:36 +00:00
if (ismcast) {
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
rix = an->an_mcastrix;
honor net80211 mcast tx rate MFC after: 2 weeks
2006-02-09 21:15:36 +00:00
txrate = rt->info[rix].rateCode;
if (shortPreamble)
txrate |= rt->info[rix].shortPreamble;
try0 = 1;
send EAPOL frames at the same rate used for mgt frames
2008-05-28 23:41:40 +00:00
} else if (m0->m_flags & M_EAPOL) {
/* XXX? maybe always use long preamble? */
rix = an->an_mgmtrix;
txrate = rt->info[rix].rateCode;
if (shortPreamble)
txrate |= rt->info[rix].shortPreamble;
try0 = ATH_TXMAXTRY; /* XXX?too many? */
honor net80211 mcast tx rate MFC after: 2 weeks
2006-02-09 21:15:36 +00:00
} else {
ath_rate_findrate(sc, an, shortPreamble, pktlen,
&rix, &try0, &txrate);
o With the addition of HT rates the set of h/w codes has a much wider range making the use of sc_hwmap to do direct mapping impractical. Switch to indexing by the rate index instead of the rate code and adjust associated state and logic appropriately. This has several benefits including simplification of the led code. o fix radiotap capture of HT rates o fix conditional compilation of HT radiotap support to be based on the hal having 5416 support; not the ABI version as hal builds may or may not include 5416 support
2008-10-27 18:22:44 +00:00
sc->sc_txrix = rix; /* for LED blinking */
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
sc->sc_lastdatarix = rix; /* for fast frames */
honor net80211 mcast tx rate MFC after: 2 weeks
2006-02-09 21:15:36 +00:00
if (try0 != ATH_TXMAXTRY)
ismrr = 1;
}
Minor tx path cleanups: o assume all data frames have been classified so there's no need to check if QoS is being used, just fetch the wme priority from the mbuf o fix double counting of noack frames o fix nearby comment MFC after: 2 weeks
2006-02-09 22:34:34 +00:00
if (cap->cap_wmeParams[pri].wmep_noackPolicy)
flags |= HAL_TXDESC_NOACK;
Update with last year of work.
2004-12-08 17:34:36 +00:00
break;
default:
if_printf(ifp, "bogus frame type 0x%x (%s)\n",
wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK, __func__);
/* XXX statistic */
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
ath_freetx(m0);
Update with last year of work.
2004-12-08 17:34:36 +00:00
return EIO;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
o extend cts to cover packet burst when operating in 11g w/ protection o check current channel parameters, not shadow state, for acm policy on data frames
2005-03-30 20:13:08 +00:00
txq = sc->sc_ac2q[pri];
Update with last year of work.
2004-12-08 17:34:36 +00:00
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
/*
Update with last year of work.
2004-12-08 17:34:36 +00:00
* When servicing one or more stations in power-save mode
Close race in handling mcast traffic when operating as an ap with stations in power save: add a new q where mcast frames are stashed and on beacon update (at DTIM) move frames from the mcast q to the cabq and start it. This ensures the cabq is only manipulated in one place. Sponsored by: Hobnob MFC after: 2 weeks
2006-06-26 03:10:45 +00:00
* (or) if there is some mcast data waiting on the mcast
* queue (to prevent out of order delivery) multicast
* frames must be buffered until after the beacon.
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
*/
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if (ismcast && (vap->iv_ps_sta || avp->av_mcastq.axq_depth))
txq = &avp->av_mcastq;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
/*
* Calculate miscellaneous flags.
*/
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (ismcast) {
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
flags |= HAL_TXDESC_NOACK; /* no ack on broad/multicast */
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
} else if (pktlen > vap->iv_rtsthreshold &&
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
(ni->ni_ath_flags & IEEE80211_NODE_FF) == 0) {
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
flags |= HAL_TXDESC_RTSENA; /* RTS based on frame length */
Update with last year of work.
2004-12-08 17:34:36 +00:00
cix = rt->info[rix].controlRate;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
sc->sc_stats.ast_tx_rts++;
}
Minor tx path cleanups: o assume all data frames have been classified so there's no need to check if QoS is being used, just fetch the wme priority from the mbuf o fix double counting of noack frames o fix nearby comment MFC after: 2 weeks
2006-02-09 22:34:34 +00:00
if (flags & HAL_TXDESC_NOACK) /* NB: avoid double counting */
sc->sc_stats.ast_tx_noack++;
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
#ifdef ATH_SUPPORT_TDMA
if (sc->sc_tdma && (flags & HAL_TXDESC_NOACK) == 0) {
DPRINTF(sc, ATH_DEBUG_XMIT, "%s: ACK required w/ TDMA\n",
__func__);
/* XXX statistic */
ath_freetx(m0);
return EIO;
}
#endif
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* If 802.11g protection is enabled, determine whether
* to use RTS/CTS or just CTS. Note that this is only
* done for OFDM unicast frames.
*/
if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
rt->info[rix].phy == IEEE80211_T_OFDM &&
(flags & HAL_TXDESC_NOACK) == 0) {
/* XXX fragments must use CCK rates w/ protection */
if (ic->ic_protmode == IEEE80211_PROT_RTSCTS)
flags |= HAL_TXDESC_RTSENA;
else if (ic->ic_protmode == IEEE80211_PROT_CTSONLY)
flags |= HAL_TXDESC_CTSENA;
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
if (isfrag) {
/*
* For frags it would be desirable to use the
* highest CCK rate for RTS/CTS. But stations
* farther away may detect it at a lower CCK rate
* so use the configured protection rate instead
* (for now).
*/
cix = rt->info[sc->sc_protrix].controlRate;
} else
cix = rt->info[sc->sc_protrix].controlRate;
Update with last year of work.
2004-12-08 17:34:36 +00:00
sc->sc_stats.ast_tx_protect++;
}
o mark the device capable of short preamble (meaningless for the 5210 but safe since the 802.11 layer does the right thing for 11a operation) o select short preamble operation based on the negotiated capabilities; not just the local state/capability o fillin the duration field in the 802.11 header as appropriate o remove detection of 11g support; no longer needed Obtained from: MADWIFI (with modifications)
2003-09-14 22:39:19 +00:00
/*
* Calculate duration. This logically belongs in the 802.11
* layer but it lacks sufficient information to calculate it.
*/
if ((flags & HAL_TXDESC_NOACK) == 0 &&
(wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_CTL) {
u_int16_t dur;
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (shortPreamble)
dur = rt->info[rix].spAckDuration;
else
dur = rt->info[rix].lpAckDuration;
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
if (wh->i_fc[1] & IEEE80211_FC1_MORE_FRAG) {
dur += dur; /* additional SIFS+ACK */
KASSERT(m0->m_nextpkt != NULL, ("no fragment"));
/*
* Include the size of next fragment so NAV is
* updated properly. The last fragment uses only
* the ACK duration
*/
dur += ath_hal_computetxtime(ah, rt,
m0->m_nextpkt->m_pkthdr.len,
rix, shortPreamble);
}
if (isfrag) {
/*
* Force hardware to use computed duration for next
* fragment by disabling multi-rate retry which updates
* duration based on the multi-rate duration table.
*/
ismrr = 0;
try0 = ATH_TXMGTTRY; /* XXX? */
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
*(u_int16_t *)wh->i_dur = htole16(dur);
o mark the device capable of short preamble (meaningless for the 5210 but safe since the 802.11 layer does the right thing for 11a operation) o select short preamble operation based on the negotiated capabilities; not just the local state/capability o fillin the duration field in the 802.11 header as appropriate o remove detection of 11g support; no longer needed Obtained from: MADWIFI (with modifications)
2003-09-14 22:39:19 +00:00
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
/*
* Calculate RTS/CTS rate and duration if needed.
*/
ctsduration = 0;
if (flags & (HAL_TXDESC_RTSENA|HAL_TXDESC_CTSENA)) {
/*
* CTS transmit rate is derived from the transmit rate
* by looking in the h/w rate table. We must also factor
* in whether or not a short preamble is to be used.
*/
Update with last year of work.
2004-12-08 17:34:36 +00:00
/* NB: cix is set above where RTS/CTS is enabled */
KASSERT(cix != 0xff, ("cix not setup"));
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
ctsrate = rt->info[cix].rateCode;
/*
Update with last year of work.
2004-12-08 17:34:36 +00:00
* Compute the transmit duration based on the frame
* size and the size of an ACK frame. We call into the
* HAL to do the computation since it depends on the
* characteristics of the actual PHY being used.
*
* NB: CTS is assumed the same size as an ACK so we can
* use the precalculated ACK durations.
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
*/
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (shortPreamble) {
ctsrate |= rt->info[cix].shortPreamble;
if (flags & HAL_TXDESC_RTSENA) /* SIFS + CTS */
ctsduration += rt->info[cix].spAckDuration;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
ctsduration += ath_hal_computetxtime(ah,
Update with last year of work.
2004-12-08 17:34:36 +00:00
rt, pktlen, rix, AH_TRUE);
if ((flags & HAL_TXDESC_NOACK) == 0) /* SIFS + ACK */
correct CTS duration calculation; SIFS+ACK should use the xmit rate not the rate for CTS MFC after: 3 days Obtained from: Atheros
2005-08-12 23:11:44 +00:00
ctsduration += rt->info[rix].spAckDuration;
Update with last year of work.
2004-12-08 17:34:36 +00:00
} else {
if (flags & HAL_TXDESC_RTSENA) /* SIFS + CTS */
ctsduration += rt->info[cix].lpAckDuration;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
ctsduration += ath_hal_computetxtime(ah,
Update with last year of work.
2004-12-08 17:34:36 +00:00
rt, pktlen, rix, AH_FALSE);
if ((flags & HAL_TXDESC_NOACK) == 0) /* SIFS + ACK */
correct CTS duration calculation; SIFS+ACK should use the xmit rate not the rate for CTS MFC after: 3 days Obtained from: Atheros
2005-08-12 23:11:44 +00:00
ctsduration += rt->info[rix].lpAckDuration;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* Must disable multi-rate retry when using RTS/CTS.
*/
lower try count on mgt (and ctl) frames to avoid clogging the tx queue and loading the bss when operating in ap mode under load; adjust recognition of multi-rate retry to match MFC after: 2 weeks
2006-02-09 20:57:48 +00:00
ismrr = 0;
try0 = ATH_TXMGTTRY; /* XXX */
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
} else
ctsrate = 0;
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
/*
* At this point we are committed to sending the frame
* and we don't need to look at m_nextpkt; clear it in
* case this frame is part of frag chain.
*/
m0->m_nextpkt = NULL;
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (IFF_DUMPPKTS(sc, ATH_DEBUG_XMIT))
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
ieee80211_dump_pkt(ic, mtod(m0, caddr_t), m0->m_len,
o With the addition of HT rates the set of h/w codes has a much wider range making the use of sc_hwmap to do direct mapping impractical. Switch to indexing by the rate index instead of the rate code and adjust associated state and logic appropriately. This has several benefits including simplification of the led code. o fix radiotap capture of HT rates o fix conditional compilation of HT radiotap support to be based on the hal having 5416 support; not the ABI version as hal builds may or may not include 5416 support
2008-10-27 18:22:44 +00:00
sc->sc_hwmap[rix].ieeerate, -1);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if (bpf_peers_present(ifp->if_bpf)) {
Update monitoring support: o record tsf in tx+rx frames o switch from raw rssi to dbm for signal data and record both signal and noise floor data (hacked for now to assume a fixed noise floor; is correct with new hal) o add monpass sysctl to control which rx'd frames are passed up with errors; especially useful to see frames with CRC errors o mark 'd packets w/ a CRC error with radiotap's BADFCS flag Also add placeholder code for calibrating the noise floor when using newer hals. Reviewed by: avatar MFC after: 1 week
2006-01-09 17:13:20 +00:00
u_int64_t tsf = ath_hal_gettsf64(ah);
sc->sc_tx_th.wt_tsf = htole64(tsf);
o With the addition of HT rates the set of h/w codes has a much wider range making the use of sc_hwmap to do direct mapping impractical. Switch to indexing by the rate index instead of the rate code and adjust associated state and logic appropriately. This has several benefits including simplification of the led code. o fix radiotap capture of HT rates o fix conditional compilation of HT radiotap support to be based on the hal having 5416 support; not the ABI version as hal builds may or may not include 5416 support
2008-10-27 18:22:44 +00:00
sc->sc_tx_th.wt_flags = sc->sc_hwmap[rix].txflags;
update radiotap support to reflect recent changes: o move tx taps from ath_start to ath_tx_start so lots more state is available to tap o add tx flags o add tx rate o add tx power (constant for the moment) o add tx antenna state
2003-12-28 07:00:32 +00:00
if (iswep)
sc->sc_tx_th.wt_flags |= IEEE80211_RADIOTAP_F_WEP;
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
if (isfrag)
sc->sc_tx_th.wt_flags |= IEEE80211_RADIOTAP_F_FRAG;
o With the addition of HT rates the set of h/w codes has a much wider range making the use of sc_hwmap to do direct mapping impractical. Switch to indexing by the rate index instead of the rate code and adjust associated state and logic appropriately. This has several benefits including simplification of the led code. o fix radiotap capture of HT rates o fix conditional compilation of HT radiotap support to be based on the hal having 5416 support; not the ABI version as hal builds may or may not include 5416 support
2008-10-27 18:22:44 +00:00
sc->sc_tx_th.wt_rate = sc->sc_hwmap[rix].ieeerate;
Update with last year of work.
2004-12-08 17:34:36 +00:00
sc->sc_tx_th.wt_txpower = ni->ni_txpower;
sc->sc_tx_th.wt_antenna = sc->sc_txantenna;
update radiotap support to reflect recent changes: o move tx taps from ath_start to ath_tx_start so lots more state is available to tap o add tx flags o add tx rate o add tx power (constant for the moment) o add tx antenna state
2003-12-28 07:00:32 +00:00
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
bpf_mtap2(ifp->if_bpf, &sc->sc_tx_th, sc->sc_tx_th_len, m0);
update radiotap support to reflect recent changes: o move tx taps from ath_start to ath_tx_start so lots more state is available to tap o add tx flags o add tx rate o add tx power (constant for the moment) o add tx antenna state
2003-12-28 07:00:32 +00:00
}
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
/*
Update with last year of work.
2004-12-08 17:34:36 +00:00
* Determine if a tx interrupt should be generated for
* this descriptor. We take a tx interrupt to reap
* descriptors when the h/w hits an EOL condition or
* when the descriptor is specifically marked to generate
* an interrupt. We periodically mark descriptors in this
* way to insure timely replenishing of the supply needed
* for sending frames. Defering interrupts reduces system
* load and potentially allows more concurrent work to be
* done but if done to aggressively can cause senders to
* backup.
*
* NB: use >= to deal with sc_txintrperiod changing
* dynamically through sysctl.
*/
if (flags & HAL_TXDESC_INTREQ) {
txq->axq_intrcnt = 0;
} else if (++txq->axq_intrcnt >= sc->sc_txintrperiod) {
flags |= HAL_TXDESC_INTREQ;
txq->axq_intrcnt = 0;
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
/*
* Formulate first tx descriptor with tx controls.
*/
/* XXX check return value? */
ath_hal_setuptxdesc(ah, ds
, pktlen /* packet length */
, hdrlen /* header length */
, atype /* Atheros packet type */
Update with last year of work.
2004-12-08 17:34:36 +00:00
, ni->ni_txpower /* txpower */
, txrate, try0 /* series 0 rate/tries */
, keyix /* key cache index */
, sc->sc_txantenna /* antenna mode */
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
, flags /* flags */
, ctsrate /* rts/cts rate */
, ctsduration /* rts/cts duration */
);
rename bf_flags to bf_txflags in preparation for the addition of flags separate from the tx descriptor flags currently recorded
2008-10-27 17:16:46 +00:00
bf->bf_txflags = flags;
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* Setup the multi-rate retry state only when we're
* going to use it. This assumes ath_hal_setuptxdesc
* initializes the descriptors (so we don't have to)
* when the hardware supports multi-rate retry and
* we don't use it.
*/
lower try count on mgt (and ctl) frames to avoid clogging the tx queue and loading the bss when operating in ap mode under load; adjust recognition of multi-rate retry to match MFC after: 2 weeks
2006-02-09 20:57:48 +00:00
if (ismrr)
Update with last year of work.
2004-12-08 17:34:36 +00:00
ath_rate_setupxtxdesc(sc, an, ds, shortPreamble, rix);
raw 802.11 packet transmit support Joint work with: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
2006-08-05 05:07:17 +00:00
ath_tx_handoff(sc, txq, bf);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
return 0;
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* Process completed xmit descriptors from the specified queue.
*/
Phantom beacon miss workaround: track the tsf of the last received frame and if we get a beacon miss interrupt ignore it if we've received a frame within the beacon miss interval. This should never trigger and the handling at the net80211 layer should likewise deal with this but it doesn't hurt and can suppress extranous probe request frames. Note that we can legtimately get a bmiss when under heavy load. MFC after: 2 weeks
2006-02-09 22:03:26 +00:00
static int
Update with last year of work.
2004-12-08 17:34:36 +00:00
ath_tx_processq(struct ath_softc *sc, struct ath_txq *txq)
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
{
struct ath_hal *ah = sc->sc_ah;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
struct ifnet *ifp = sc->sc_ifp;
struct ieee80211com *ic = ifp->if_l2com;
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
struct ath_buf *bf, *last;
o extend cts to cover packet burst when operating in 11g w/ protection o check current channel parameters, not shadow state, for acm policy on data frames
2005-03-30 20:13:08 +00:00
struct ath_desc *ds, *ds0;
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
struct ath_tx_status *ts;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
struct ieee80211_node *ni;
struct ath_node *an;
Phantom beacon miss workaround: track the tsf of the last received frame and if we get a beacon miss interrupt ignore it if we've received a frame within the beacon miss interval. This should never trigger and the handling at the net80211 layer should likewise deal with this but it doesn't hurt and can suppress extranous probe request frames. Note that we can legtimately get a bmiss when under heavy load. MFC after: 2 weeks
2006-02-09 22:03:26 +00:00
int sr, lr, pri, nacked;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
HAL_STATUS status;
Update with last year of work.
2004-12-08 17:34:36 +00:00
DPRINTF(sc, ATH_DEBUG_TX_PROC, "%s: tx queue %u head %p link %p\n",
__func__, txq->axq_qnum,
(caddr_t)(uintptr_t) ath_hal_gettxbuf(sc->sc_ah, txq->axq_qnum),
txq->axq_link);
Phantom beacon miss workaround: track the tsf of the last received frame and if we get a beacon miss interrupt ignore it if we've received a frame within the beacon miss interval. This should never trigger and the handling at the net80211 layer should likewise deal with this but it doesn't hurt and can suppress extranous probe request frames. Note that we can legtimately get a bmiss when under heavy load. MFC after: 2 weeks
2006-02-09 22:03:26 +00:00
nacked = 0;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
for (;;) {
Update with last year of work.
2004-12-08 17:34:36 +00:00
ATH_TXQ_LOCK(txq);
txq->axq_intrcnt = 0; /* reset periodic desc intr count */
bf = STAILQ_FIRST(&txq->axq_q);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
if (bf == NULL) {
Update with last year of work.
2004-12-08 17:34:36 +00:00
ATH_TXQ_UNLOCK(txq);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
break;
}
o extend cts to cover packet burst when operating in 11g w/ protection o check current channel parameters, not shadow state, for acm policy on data frames
2005-03-30 20:13:08 +00:00
ds0 = &bf->bf_desc[0];
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
ds = &bf->bf_desc[bf->bf_nseg - 1];
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
ts = &bf->bf_status.ds_txstat;
status = ath_hal_txprocdesc(ah, ds, ts);
o add opt_ath.h enable tweaking various config parameters for the driver without modifying the source code o default debug msgs and diag support to off MFC after: 3 days
2006-04-03 18:14:02 +00:00
#ifdef ATH_DEBUG
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (sc->sc_debug & ATH_DEBUG_XMIT_DESC)
print the extended tx/rx descriptor for 5416 and later parts
2008-11-24 01:34:56 +00:00
ath_printtxbuf(sc, bf, txq->axq_qnum, 0,
status == HAL_OK);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
#endif
if (status == HAL_EINPROGRESS) {
Update with last year of work.
2004-12-08 17:34:36 +00:00
ATH_TXQ_UNLOCK(txq);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
break;
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
ATH_TXQ_REMOVE_HEAD(txq, bf_list);
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
#ifdef ATH_SUPPORT_TDMA
if (txq->axq_depth > 0) {
/*
* More frames follow. Mark the buffer busy
* so it's not re-used while the hardware may
* still re-read the link field in the descriptor.
*/
bf->bf_flags |= ATH_BUF_BUSY;
} else
#else
backout 1.136 until we can resolve report that it causes output to stall
2006-02-27 17:20:23 +00:00
if (txq->axq_depth == 0)
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
#endif
close race between ath_tx_start and ath_tx_processq Reviewed by: apatti MFC after: 1 week
2006-02-15 18:12:24 +00:00
txq->axq_link = NULL;
Update with last year of work.
2004-12-08 17:34:36 +00:00
ATH_TXQ_UNLOCK(txq);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
ni = bf->bf_node;
if (ni != NULL) {
Update with last year of work.
2004-12-08 17:34:36 +00:00
an = ATH_NODE(ni);
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
if (ts->ts_status == 0) {
u_int8_t txant = ts->ts_antenna;
Update with last year of work.
2004-12-08 17:34:36 +00:00
sc->sc_stats.ast_ant_tx[txant]++;
sc->sc_ant_tx[txant]++;
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
if (ts->ts_rate & HAL_TXSTAT_ALTRATE)
Update with last year of work.
2004-12-08 17:34:36 +00:00
sc->sc_stats.ast_tx_altrate++;
pri = M_WME_GETAC(bf->bf_m);
if (pri >= WME_AC_VO)
ic->ic_wme.wme_hipri_traffic++;
update the sta inactivity timer only if we actually received an ACK
2008-10-27 17:43:23 +00:00
if ((bf->bf_txflags & HAL_TXDESC_NOACK) == 0)
ni->ni_inact = ni->ni_inact_reload;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
} else {
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
if (ts->ts_status & HAL_TXERR_XRETRY)
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
sc->sc_stats.ast_tx_xretries++;
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
if (ts->ts_status & HAL_TXERR_FIFO)
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
sc->sc_stats.ast_tx_fifoerr++;
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
if (ts->ts_status & HAL_TXERR_FILT)
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
sc->sc_stats.ast_tx_filtered++;
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
if (bf->bf_m->m_flags & M_FF)
sc->sc_stats.ast_ff_txerr++;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
sr = ts->ts_shortretry;
lr = ts->ts_longretry;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
sc->sc_stats.ast_tx_shortretry += sr;
sc->sc_stats.ast_tx_longretry += lr;
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* Hand the descriptor to the rate control algorithm.
*/
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
if ((ts->ts_status & HAL_TXERR_FILT) == 0 &&
rename bf_flags to bf_txflags in preparation for the addition of flags separate from the tx descriptor flags currently recorded
2008-10-27 17:16:46 +00:00
(bf->bf_txflags & HAL_TXDESC_NOACK) == 0) {
Phantom beacon miss workaround: track the tsf of the last received frame and if we get a beacon miss interrupt ignore it if we've received a frame within the beacon miss interval. This should never trigger and the handling at the net80211 layer should likewise deal with this but it doesn't hurt and can suppress extranous probe request frames. Note that we can legtimately get a bmiss when under heavy load. MFC after: 2 weeks
2006-02-09 22:03:26 +00:00
/*
Fixup statistics: o update tx rssi data only when an ACK was received o return tx rssi from sampled data instead of the last frame o track noise floor o return rx rssi and noise floor (was broken)
2008-10-27 17:51:24 +00:00
* If frame was ack'd update statistics,
* including the last rx time used to
* workaround phantom bmiss interrupts.
Phantom beacon miss workaround: track the tsf of the last received frame and if we get a beacon miss interrupt ignore it if we've received a frame within the beacon miss interval. This should never trigger and the handling at the net80211 layer should likewise deal with this but it doesn't hurt and can suppress extranous probe request frames. Note that we can legtimately get a bmiss when under heavy load. MFC after: 2 weeks
2006-02-09 22:03:26 +00:00
*/
Fixup statistics: o update tx rssi data only when an ACK was received o return tx rssi from sampled data instead of the last frame o track noise floor o return rx rssi and noise floor (was broken)
2008-10-27 17:51:24 +00:00
if (ts->ts_status == 0) {
Phantom beacon miss workaround: track the tsf of the last received frame and if we get a beacon miss interrupt ignore it if we've received a frame within the beacon miss interval. This should never trigger and the handling at the net80211 layer should likewise deal with this but it doesn't hurt and can suppress extranous probe request frames. Note that we can legtimately get a bmiss when under heavy load. MFC after: 2 weeks
2006-02-09 22:03:26 +00:00
nacked++;
Fixup statistics: o update tx rssi data only when an ACK was received o return tx rssi from sampled data instead of the last frame o track noise floor o return rx rssi and noise floor (was broken)
2008-10-27 17:51:24 +00:00
sc->sc_stats.ast_tx_rssi = ts->ts_rssi;
ATH_RSSI_LPF(sc->sc_halstats.ns_avgtxrssi,
ts->ts_rssi);
}
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
ath_rate_tx_complete(sc, an, bf);
Phantom beacon miss workaround: track the tsf of the last received frame and if we get a beacon miss interrupt ignore it if we've received a frame within the beacon miss interval. This should never trigger and the handling at the net80211 layer should likewise deal with this but it doesn't hurt and can suppress extranous probe request frames. Note that we can legtimately get a bmiss when under heavy load. MFC after: 2 weeks
2006-02-09 22:03:26 +00:00
}
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
/*
* Do any tx complete callback. Note this must
* be done before releasing the node reference.
*/
if (bf->bf_m->m_flags & M_TXCB)
ieee80211_process_callback(ni, bf->bf_m,
correct callback status parameter; only indicate success when an ACK was received
2008-10-27 17:52:41 +00:00
(bf->bf_txflags & HAL_TXDESC_NOACK) == 0 ?
ts->ts_status : HAL_TXERR_XRETRY);
MFp4 changes to fix locking issues and correct reference count handling of station entries in hostap mode: Input path: o driver is now expected to find the node associated with the sender of a received frame; use ic_bss if none is located o driver passes the (referenced) node into ieee80211_input for use within the wlan module and is responsible for cleaning up on return o the antenna state is no longer passed up with each frame; this is now considered driver-private state and drivers are responsible for keeping it in the driver-private part of a node Output path: Revamp output path for management frames to eliminate redundant locking that causes problems and to correct reference counting bogosity that occurs when stations are timed out due to inactivity (in AP mode). On output the refcnt'd node is stashed in the pkthdr's recvif field (yech) and retrieved by the driver. This eliminates an unref/ref scenario and related node table unlock/lock due to the driver looking up the node. This is particularly important when stations are timed out as this causes a lock order reversal that can result in a deadlock. As a byproduct we also reduce the overhead for sending management frames (minimal). Additional fallout from this is a change to ieee80211_encap to return a refcn't node for tieing to the outbound frame. Node refcnts are not reclaimed until after a frame is completely processed (e.g. in the tx interrupt handler). This is especially important for timed out stations as this deref will be the final one causing the node entry to be reclaimed. Additional semi-related changes: o replace m_copym use with m_copypacket (optimization) o add assert to verify ic_bss is never free'd during normal operation o add comments explaining calling conventions by drivers for frames going in each direction o remove extraneous code that "cannot be executed" (e.g. because pointers may never be null)
2003-08-19 22:17:04 +00:00
/*
* Reclaim reference to node.
*
* NB: the node may be reclaimed here if, for example
* this is a DEAUTH message that was sent and the
* node was timed out due to inactivity.
*/
Update with last year of work.
2004-12-08 17:34:36 +00:00
ieee80211_free_node(ni);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
bus_dmamap_sync(sc->sc_dmat, bf->bf_dmamap,
BUS_DMASYNC_POSTWRITE);
bus_dmamap_unload(sc->sc_dmat, bf->bf_dmamap);
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
m_freem(bf->bf_m);
bf->bf_m = NULL;
bf->bf_node = NULL;
o convert mutex calls to #defines for portability, etc. o destroy mutex's on detach (was missing)
2003-10-14 22:51:45 +00:00
ATH_TXBUF_LOCK(sc);
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
last = STAILQ_LAST(&sc->sc_txbuf, ath_buf, bf_list);
if (last != NULL)
last->bf_flags &= ~ATH_BUF_BUSY;
Update with last year of work.
2004-12-08 17:34:36 +00:00
STAILQ_INSERT_TAIL(&sc->sc_txbuf, bf, bf_list);
o convert mutex calls to #defines for portability, etc. o destroy mutex's on detach (was missing)
2003-10-14 22:51:45 +00:00
ATH_TXBUF_UNLOCK(sc);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
/*
* Flush fast-frame staging queue when traffic slows.
*/
if (txq->axq_depth <= 1)
ath_ff_stageq_flush(sc, txq, ath_ff_always);
Phantom beacon miss workaround: track the tsf of the last received frame and if we get a beacon miss interrupt ignore it if we've received a frame within the beacon miss interval. This should never trigger and the handling at the net80211 layer should likewise deal with this but it doesn't hurt and can suppress extranous probe request frames. Note that we can legtimately get a bmiss when under heavy load. MFC after: 2 weeks
2006-02-09 22:03:26 +00:00
return nacked;
}
static __inline int
txqactive(struct ath_hal *ah, int qnum)
{
use ath_hal_gettxintrtxqs so we only process h/w tx queues that have an interrupt pending MFC after: 2 weeks
2006-02-15 18:17:53 +00:00
u_int32_t txqs = 1<<qnum;
ath_hal_gettxintrtxqs(ah, &txqs);
add missing bit from 1.130
2006-02-15 18:24:22 +00:00
return (txqs & (1<<qnum));
Update with last year of work.
2004-12-08 17:34:36 +00:00
}
/*
* Deferred processing of transmit interrupt; special-cased
* for a single hardware transmit queue (e.g. 5210 and 5211).
*/
static void
ath_tx_proc_q0(void *arg, int npending)
{
struct ath_softc *sc = arg;
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
struct ifnet *ifp = sc->sc_ifp;
Update with last year of work.
2004-12-08 17:34:36 +00:00
Phantom beacon miss workaround: track the tsf of the last received frame and if we get a beacon miss interrupt ignore it if we've received a frame within the beacon miss interval. This should never trigger and the handling at the net80211 layer should likewise deal with this but it doesn't hurt and can suppress extranous probe request frames. Note that we can legtimately get a bmiss when under heavy load. MFC after: 2 weeks
2006-02-09 22:03:26 +00:00
if (txqactive(sc->sc_ah, 0) && ath_tx_processq(sc, &sc->sc_txq[0]))
sc->sc_lastrx = ath_hal_gettsf64(sc->sc_ah);
if (txqactive(sc->sc_ah, sc->sc_cabq->axq_qnum))
ath_tx_processq(sc, sc->sc_cabq);
Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and IFF_DRV_RUNNING, as well as the move from ifnet.if_flags to ifnet.if_drv_flags. Device drivers are now responsible for synchronizing access to these flags, as they are in if_drv_flags. This helps prevent races between the network stack and device driver in maintaining the interface flags field. Many __FreeBSD__ and __FreeBSD_version checks maintained and continued; some less so. Reviewed by: pjd, bz MFC after: 7 days
2005-08-09 10:20:02 +00:00
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
ifp->if_timer = 0;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
better led blinking
2005-01-18 19:03:04 +00:00
if (sc->sc_softled)
o With the addition of HT rates the set of h/w codes has a much wider range making the use of sc_hwmap to do direct mapping impractical. Switch to indexing by the rate index instead of the rate code and adjust associated state and logic appropriately. This has several benefits including simplification of the led code. o fix radiotap capture of HT rates o fix conditional compilation of HT radiotap support to be based on the hal having 5416 support; not the ABI version as hal builds may or may not include 5416 support
2008-10-27 18:22:44 +00:00
ath_led_event(sc, sc->sc_txrix);
better led blinking
2005-01-18 19:03:04 +00:00
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
ath_start(ifp);
}
/*
Update with last year of work.
2004-12-08 17:34:36 +00:00
* Deferred processing of transmit interrupt; special-cased
* for four hardware queues, 0-3 (e.g. 5212 w/ WME support).
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
*/
static void
Update with last year of work.
2004-12-08 17:34:36 +00:00
ath_tx_proc_q0123(void *arg, int npending)
{
struct ath_softc *sc = arg;
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
struct ifnet *ifp = sc->sc_ifp;
Phantom beacon miss workaround: track the tsf of the last received frame and if we get a beacon miss interrupt ignore it if we've received a frame within the beacon miss interval. This should never trigger and the handling at the net80211 layer should likewise deal with this but it doesn't hurt and can suppress extranous probe request frames. Note that we can legtimately get a bmiss when under heavy load. MFC after: 2 weeks
2006-02-09 22:03:26 +00:00
int nacked;
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* Process each active queue.
*/
Phantom beacon miss workaround: track the tsf of the last received frame and if we get a beacon miss interrupt ignore it if we've received a frame within the beacon miss interval. This should never trigger and the handling at the net80211 layer should likewise deal with this but it doesn't hurt and can suppress extranous probe request frames. Note that we can legtimately get a bmiss when under heavy load. MFC after: 2 weeks
2006-02-09 22:03:26 +00:00
nacked = 0;
if (txqactive(sc->sc_ah, 0))
nacked += ath_tx_processq(sc, &sc->sc_txq[0]);
if (txqactive(sc->sc_ah, 1))
nacked += ath_tx_processq(sc, &sc->sc_txq[1]);
if (txqactive(sc->sc_ah, 2))
nacked += ath_tx_processq(sc, &sc->sc_txq[2]);
if (txqactive(sc->sc_ah, 3))
nacked += ath_tx_processq(sc, &sc->sc_txq[3]);
if (txqactive(sc->sc_ah, sc->sc_cabq->axq_qnum))
ath_tx_processq(sc, sc->sc_cabq);
if (nacked)
sc->sc_lastrx = ath_hal_gettsf64(sc->sc_ah);
Update with last year of work.
2004-12-08 17:34:36 +00:00
Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and IFF_DRV_RUNNING, as well as the move from ifnet.if_flags to ifnet.if_drv_flags. Device drivers are now responsible for synchronizing access to these flags, as they are in if_drv_flags. This helps prevent races between the network stack and device driver in maintaining the interface flags field. Many __FreeBSD__ and __FreeBSD_version checks maintained and continued; some less so. Reviewed by: pjd, bz MFC after: 7 days
2005-08-09 10:20:02 +00:00
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
ifp->if_timer = 0;
Update with last year of work.
2004-12-08 17:34:36 +00:00
better led blinking
2005-01-18 19:03:04 +00:00
if (sc->sc_softled)
o With the addition of HT rates the set of h/w codes has a much wider range making the use of sc_hwmap to do direct mapping impractical. Switch to indexing by the rate index instead of the rate code and adjust associated state and logic appropriately. This has several benefits including simplification of the led code. o fix radiotap capture of HT rates o fix conditional compilation of HT radiotap support to be based on the hal having 5416 support; not the ABI version as hal builds may or may not include 5416 support
2008-10-27 18:22:44 +00:00
ath_led_event(sc, sc->sc_txrix);
better led blinking
2005-01-18 19:03:04 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
ath_start(ifp);
}
/*
* Deferred processing of transmit interrupt.
*/
static void
ath_tx_proc(void *arg, int npending)
{
struct ath_softc *sc = arg;
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
struct ifnet *ifp = sc->sc_ifp;
Phantom beacon miss workaround: track the tsf of the last received frame and if we get a beacon miss interrupt ignore it if we've received a frame within the beacon miss interval. This should never trigger and the handling at the net80211 layer should likewise deal with this but it doesn't hurt and can suppress extranous probe request frames. Note that we can legtimately get a bmiss when under heavy load. MFC after: 2 weeks
2006-02-09 22:03:26 +00:00
int i, nacked;
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* Process each active queue.
*/
Phantom beacon miss workaround: track the tsf of the last received frame and if we get a beacon miss interrupt ignore it if we've received a frame within the beacon miss interval. This should never trigger and the handling at the net80211 layer should likewise deal with this but it doesn't hurt and can suppress extranous probe request frames. Note that we can legtimately get a bmiss when under heavy load. MFC after: 2 weeks
2006-02-09 22:03:26 +00:00
nacked = 0;
Update with last year of work.
2004-12-08 17:34:36 +00:00
for (i = 0; i < HAL_NUM_TX_QUEUES; i++)
Phantom beacon miss workaround: track the tsf of the last received frame and if we get a beacon miss interrupt ignore it if we've received a frame within the beacon miss interval. This should never trigger and the handling at the net80211 layer should likewise deal with this but it doesn't hurt and can suppress extranous probe request frames. Note that we can legtimately get a bmiss when under heavy load. MFC after: 2 weeks
2006-02-09 22:03:26 +00:00
if (ATH_TXQ_SETUP(sc, i) && txqactive(sc->sc_ah, i))
nacked += ath_tx_processq(sc, &sc->sc_txq[i]);
if (nacked)
sc->sc_lastrx = ath_hal_gettsf64(sc->sc_ah);
Update with last year of work.
2004-12-08 17:34:36 +00:00
Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and IFF_DRV_RUNNING, as well as the move from ifnet.if_flags to ifnet.if_drv_flags. Device drivers are now responsible for synchronizing access to these flags, as they are in if_drv_flags. This helps prevent races between the network stack and device driver in maintaining the interface flags field. Many __FreeBSD__ and __FreeBSD_version checks maintained and continued; some less so. Reviewed by: pjd, bz MFC after: 7 days
2005-08-09 10:20:02 +00:00
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
ifp->if_timer = 0;
Update with last year of work.
2004-12-08 17:34:36 +00:00
better led blinking
2005-01-18 19:03:04 +00:00
if (sc->sc_softled)
o With the addition of HT rates the set of h/w codes has a much wider range making the use of sc_hwmap to do direct mapping impractical. Switch to indexing by the rate index instead of the rate code and adjust associated state and logic appropriately. This has several benefits including simplification of the led code. o fix radiotap capture of HT rates o fix conditional compilation of HT radiotap support to be based on the hal having 5416 support; not the ABI version as hal builds may or may not include 5416 support
2008-10-27 18:22:44 +00:00
ath_led_event(sc, sc->sc_txrix);
better led blinking
2005-01-18 19:03:04 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
ath_start(ifp);
}
static void
ath_tx_draintxq(struct ath_softc *sc, struct ath_txq *txq)
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
{
o add opt_ath.h enable tweaking various config parameters for the driver without modifying the source code o default debug msgs and diag support to off MFC after: 3 days
2006-04-03 18:14:02 +00:00
#ifdef ATH_DEBUG
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
struct ath_hal *ah = sc->sc_ah;
fix build w/o AR_DEBUG MFC after: 2 weeks
2006-02-15 18:35:09 +00:00
#endif
When draining the tx queue reclaim any node references held in packets. This fixes a problem when operating as an AP where clients would get stuck in the node table because the reference count never went to zero.
2004-01-07 19:16:49 +00:00
struct ieee80211_node *ni;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
struct ath_buf *bf;
improve tx/rx buf printing routines MFC after: 2 weeks
2006-02-15 18:31:04 +00:00
u_int ix;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* NB: this assumes output has been stopped and
fix comment
2008-10-27 17:53:34 +00:00
* we do not need to block ath_tx_proc
Update with last year of work.
2004-12-08 17:34:36 +00:00
*/
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
ATH_TXBUF_LOCK(sc);
bf = STAILQ_LAST(&sc->sc_txbuf, ath_buf, bf_list);
if (bf != NULL)
bf->bf_flags &= ~ATH_BUF_BUSY;
ATH_TXBUF_UNLOCK(sc);
improve tx/rx buf printing routines MFC after: 2 weeks
2006-02-15 18:31:04 +00:00
for (ix = 0;; ix++) {
Update with last year of work.
2004-12-08 17:34:36 +00:00
ATH_TXQ_LOCK(txq);
bf = STAILQ_FIRST(&txq->axq_q);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
if (bf == NULL) {
backout 1.136 until we can resolve report that it causes output to stall
2006-02-27 17:20:23 +00:00
txq->axq_link = NULL;
Update with last year of work.
2004-12-08 17:34:36 +00:00
ATH_TXQ_UNLOCK(txq);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
break;
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
ATH_TXQ_REMOVE_HEAD(txq, bf_list);
ATH_TXQ_UNLOCK(txq);
o add opt_ath.h enable tweaking various config parameters for the driver without modifying the source code o default debug msgs and diag support to off MFC after: 3 days
2006-04-03 18:14:02 +00:00
#ifdef ATH_DEBUG
Improve ath_draintxq debug info: dump the packet as well as the descriptor and handle the beacon q like other q's MFC after: 1 month
2006-04-16 18:24:27 +00:00
if (sc->sc_debug & ATH_DEBUG_RESET) {
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
struct ieee80211com *ic = sc->sc_ifp->if_l2com;
print the extended tx/rx descriptor for 5416 and later parts
2008-11-24 01:34:56 +00:00
ath_printtxbuf(sc, bf, txq->axq_qnum, ix,
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
ath_hal_txprocdesc(ah, bf->bf_desc,
&bf->bf_status.ds_txstat) == HAL_OK);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ieee80211_dump_pkt(ic, mtod(bf->bf_m, caddr_t),
Improve ath_draintxq debug info: dump the packet as well as the descriptor and handle the beacon q like other q's MFC after: 1 month
2006-04-16 18:24:27 +00:00
bf->bf_m->m_len, 0, -1);
}
o add opt_ath.h enable tweaking various config parameters for the driver without modifying the source code o default debug msgs and diag support to off MFC after: 3 days
2006-04-03 18:14:02 +00:00
#endif /* ATH_DEBUG */
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
bus_dmamap_unload(sc->sc_dmat, bf->bf_dmamap);
When draining the tx queue reclaim any node references held in packets. This fixes a problem when operating as an AP where clients would get stuck in the node table because the reference count never went to zero.
2004-01-07 19:16:49 +00:00
ni = bf->bf_node;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
bf->bf_node = NULL;
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (ni != NULL) {
When draining the tx queue reclaim any node references held in packets. This fixes a problem when operating as an AP where clients would get stuck in the node table because the reference count never went to zero.
2004-01-07 19:16:49 +00:00
/*
Process tx callbacks when draining the tx q; this fixes a problem where a device timeout that occurs with a mgt frame on the tx q will leave the net80211 layer w/o any way to make progress. Reviewed by: thompsa, sephe Approved by: re (hrs)
2007-06-24 01:57:20 +00:00
* Do any callback and reclaim the node reference.
When draining the tx queue reclaim any node references held in packets. This fixes a problem when operating as an AP where clients would get stuck in the node table because the reference count never went to zero.
2004-01-07 19:16:49 +00:00
*/
Process tx callbacks when draining the tx q; this fixes a problem where a device timeout that occurs with a mgt frame on the tx q will leave the net80211 layer w/o any way to make progress. Reviewed by: thompsa, sephe Approved by: re (hrs)
2007-06-24 01:57:20 +00:00
if (bf->bf_m->m_flags & M_TXCB)
ieee80211_process_callback(ni, bf->bf_m, -1);
Update with last year of work.
2004-12-08 17:34:36 +00:00
ieee80211_free_node(ni);
When draining the tx queue reclaim any node references held in packets. This fixes a problem when operating as an AP where clients would get stuck in the node table because the reference count never went to zero.
2004-01-07 19:16:49 +00:00
}
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
m_freem(bf->bf_m);
bf->bf_m = NULL;
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
bf->bf_flags &= ~ATH_BUF_BUSY;
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
o convert mutex calls to #defines for portability, etc. o destroy mutex's on detach (was missing)
2003-10-14 22:51:45 +00:00
ATH_TXBUF_LOCK(sc);
Update with last year of work.
2004-12-08 17:34:36 +00:00
STAILQ_INSERT_TAIL(&sc->sc_txbuf, bf, bf_list);
o convert mutex calls to #defines for portability, etc. o destroy mutex's on detach (was missing)
2003-10-14 22:51:45 +00:00
ATH_TXBUF_UNLOCK(sc);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
}
static void
ath_tx_stopdma(struct ath_softc *sc, struct ath_txq *txq)
{
struct ath_hal *ah = sc->sc_ah;
DPRINTF(sc, ATH_DEBUG_RESET, "%s: tx queue [%u] %p, link %p\n",
__func__, txq->axq_qnum,
Make this amd64-clean. sizeof is long on amd64, so things that do a printf of a sizeof, need to use %z to get the correct type on all our platforms. Also, convert integers<->pointers via uintptr_t. (I think Sam's instructions were for me to commit this. If I misunderstood, then I apologize in advance.)
2004-12-15 02:25:21 +00:00
(caddr_t)(uintptr_t) ath_hal_gettxbuf(ah, txq->axq_qnum),
txq->axq_link);
Improve ath_draintxq debug info: dump the packet as well as the descriptor and handle the beacon q like other q's MFC after: 1 month
2006-04-16 18:24:27 +00:00
(void) ath_hal_stoptxdma(ah, txq->axq_qnum);
Update with last year of work.
2004-12-08 17:34:36 +00:00
}
/*
* Drain the transmit queues and reclaim resources.
*/
static void
ath_draintxq(struct ath_softc *sc)
{
struct ath_hal *ah = sc->sc_ah;
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
struct ifnet *ifp = sc->sc_ifp;
Update with last year of work.
2004-12-08 17:34:36 +00:00
int i;
/* XXX return value */
if (!sc->sc_invalid) {
/* don't touch the hardware if marked invalid */
Improve ath_draintxq debug info: dump the packet as well as the descriptor and handle the beacon q like other q's MFC after: 1 month
2006-04-16 18:24:27 +00:00
DPRINTF(sc, ATH_DEBUG_RESET, "%s: tx queue [%u] %p, link %p\n",
__func__, sc->sc_bhalq,
(caddr_t)(uintptr_t) ath_hal_gettxbuf(ah, sc->sc_bhalq),
NULL);
Update with last year of work.
2004-12-08 17:34:36 +00:00
(void) ath_hal_stoptxdma(ah, sc->sc_bhalq);
for (i = 0; i < HAL_NUM_TX_QUEUES; i++)
if (ATH_TXQ_SETUP(sc, i))
ath_tx_stopdma(sc, &sc->sc_txq[i]);
}
for (i = 0; i < HAL_NUM_TX_QUEUES; i++)
if (ATH_TXQ_SETUP(sc, i))
ath_tx_draintxq(sc, &sc->sc_txq[i]);
Improve ath_draintxq debug info: dump the packet as well as the descriptor and handle the beacon q like other q's MFC after: 1 month
2006-04-16 18:24:27 +00:00
#ifdef ATH_DEBUG
if (sc->sc_debug & ATH_DEBUG_RESET) {
struct ath_buf *bf = STAILQ_FIRST(&sc->sc_bbuf);
if (bf != NULL && bf->bf_m != NULL) {
print the extended tx/rx descriptor for 5416 and later parts
2008-11-24 01:34:56 +00:00
ath_printtxbuf(sc, bf, sc->sc_bhalq, 0,
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
ath_hal_txprocdesc(ah, bf->bf_desc,
&bf->bf_status.ds_txstat) == HAL_OK);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ieee80211_dump_pkt(ifp->if_l2com, mtod(bf->bf_m, caddr_t),
Improve ath_draintxq debug info: dump the packet as well as the descriptor and handle the beacon q like other q's MFC after: 1 month
2006-04-16 18:24:27 +00:00
bf->bf_m->m_len, 0, -1);
}
}
#endif /* ATH_DEBUG */
Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and IFF_DRV_RUNNING, as well as the move from ifnet.if_flags to ifnet.if_drv_flags. Device drivers are now responsible for synchronizing access to these flags, as they are in if_drv_flags. This helps prevent races between the network stack and device driver in maintaining the interface flags field. Many __FreeBSD__ and __FreeBSD_version checks maintained and continued; some less so. Reviewed by: pjd, bz MFC after: 7 days
2005-08-09 10:20:02 +00:00
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
ifp->if_timer = 0;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
/*
* Disable the receive h/w in preparation for a reset.
*/
static void
ath_stoprecv(struct ath_softc *sc)
{
o track API change for HAL v0.9.6.1 o fix race condition when processing rx descriptors: because we use a self-linked descriptor at the end of the rx descriptor list to avoid rx overruns (which can easily happen for 5212 parts that enable PHY errors) we must carefully check that a descriptor is "done" by looking ahead to the next descriptor before believing the done bit in the current descriptor (this is all handled in the HAL since the rx descriptor format is chip-specific so we need to pass in two additional parameters--the physical address of the current descriptor and the virtual address of the next descriptor in the list) o check copyout return status for SIOCGATHSTATS ioctl Approved by: re (scottl)
2003-11-29 01:23:59 +00:00
#define PA2DESC(_sc, _pa) \
Update with last year of work.
2004-12-08 17:34:36 +00:00
((struct ath_desc *)((caddr_t)(_sc)->sc_rxdma.dd_desc + \
((_pa) - (_sc)->sc_rxdma.dd_desc_paddr)))
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
struct ath_hal *ah = sc->sc_ah;
ath_hal_stoppcurecv(ah); /* disable PCU */
ath_hal_setrxfilter(ah, 0); /* clear recv filter */
ath_hal_stopdmarecv(ah); /* disable DMA engine */
Update with last year of work.
2004-12-08 17:34:36 +00:00
DELAY(3000); /* 3ms is long enough for 1 frame */
o add opt_ath.h enable tweaking various config parameters for the driver without modifying the source code o default debug msgs and diag support to off MFC after: 3 days
2006-04-03 18:14:02 +00:00
#ifdef ATH_DEBUG
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (sc->sc_debug & (ATH_DEBUG_RESET | ATH_DEBUG_FATAL)) {
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
struct ath_buf *bf;
improve tx/rx buf printing routines MFC after: 2 weeks
2006-02-15 18:31:04 +00:00
u_int ix;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
split debugging messages up into classes; ah_debug is now treated as a bit vector
2004-01-07 18:57:38 +00:00
printf("%s: rx queue %p, link %p\n", __func__,
Make this compile on amd64. "I'll cope" by: sam
2004-02-06 00:10:54 +00:00
(caddr_t)(uintptr_t) ath_hal_getrxbuf(ah), sc->sc_rxlink);
improve tx/rx buf printing routines MFC after: 2 weeks
2006-02-15 18:31:04 +00:00
ix = 0;
Update with last year of work.
2004-12-08 17:34:36 +00:00
STAILQ_FOREACH(bf, &sc->sc_rxbuf, bf_list) {
o track API change for HAL v0.9.6.1 o fix race condition when processing rx descriptors: because we use a self-linked descriptor at the end of the rx descriptor list to avoid rx overruns (which can easily happen for 5212 parts that enable PHY errors) we must carefully check that a descriptor is "done" by looking ahead to the next descriptor before believing the done bit in the current descriptor (this is all handled in the HAL since the rx descriptor format is chip-specific so we need to pass in two additional parameters--the physical address of the current descriptor and the virtual address of the next descriptor in the list) o check copyout return status for SIOCGATHSTATS ioctl Approved by: re (scottl)
2003-11-29 01:23:59 +00:00
struct ath_desc *ds = bf->bf_desc;
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
struct ath_rx_status *rs = &bf->bf_status.ds_rxstat;
Update with last year of work.
2004-12-08 17:34:36 +00:00
HAL_STATUS status = ath_hal_rxprocdesc(ah, ds,
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
bf->bf_daddr, PA2DESC(sc, ds->ds_link), rs);
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (status == HAL_OK || (sc->sc_debug & ATH_DEBUG_FATAL))
print the extended tx/rx descriptor for 5416 and later parts
2008-11-24 01:34:56 +00:00
ath_printrxbuf(sc, bf, ix, status == HAL_OK);
improve tx/rx buf printing routines MFC after: 2 weeks
2006-02-15 18:31:04 +00:00
ix++;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
}
#endif
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
if (sc->sc_rxpending != NULL) {
m_freem(sc->sc_rxpending);
sc->sc_rxpending = NULL;
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
sc->sc_rxlink = NULL; /* just in case */
o track API change for HAL v0.9.6.1 o fix race condition when processing rx descriptors: because we use a self-linked descriptor at the end of the rx descriptor list to avoid rx overruns (which can easily happen for 5212 parts that enable PHY errors) we must carefully check that a descriptor is "done" by looking ahead to the next descriptor before believing the done bit in the current descriptor (this is all handled in the HAL since the rx descriptor format is chip-specific so we need to pass in two additional parameters--the physical address of the current descriptor and the virtual address of the next descriptor in the list) o check copyout return status for SIOCGATHSTATS ioctl Approved by: re (scottl)
2003-11-29 01:23:59 +00:00
#undef PA2DESC
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
/*
* Enable the receive h/w following a reset.
*/
static int
ath_startrecv(struct ath_softc *sc)
{
struct ath_hal *ah = sc->sc_ah;
struct ath_buf *bf;
sc->sc_rxlink = NULL;
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
sc->sc_rxpending = NULL;
Update with last year of work.
2004-12-08 17:34:36 +00:00
STAILQ_FOREACH(bf, &sc->sc_rxbuf, bf_list) {
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
int error = ath_rxbuf_init(sc, bf);
if (error != 0) {
Update with last year of work.
2004-12-08 17:34:36 +00:00
DPRINTF(sc, ATH_DEBUG_RECV,
"%s: ath_rxbuf_init failed %d\n",
__func__, error);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
return error;
}
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
bf = STAILQ_FIRST(&sc->sc_rxbuf);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
ath_hal_putrxbuf(ah, bf->bf_daddr);
ath_hal_rxena(ah); /* enable recv descriptors */
ath_mode_init(sc); /* set filters, etc. */
ath_hal_startpcurecv(ah); /* re-enable PCU/DMA engine */
return 0;
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* Update internal state after a channel change.
*/
static void
ath_chan_change(struct ath_softc *sc, struct ieee80211_channel *chan)
{
enum ieee80211_phymode mode;
/*
* Change channels and update the h/w rate map
* if we're switching; e.g. 11a to 11b/g.
*/
Add initial support for 900MHz cards like the Ubiquiti SR9: o eliminate assumptions that half/quarter rate channels on exist in 11a o handle frequency mapping between hal and net80211; hal gives us freq's in the range 2422..2437 that we remap MFC after: 1 month
2007-01-15 01:15:57 +00:00
if (IEEE80211_IS_CHAN_HALF(chan))
mode = IEEE80211_MODE_HALF;
else if (IEEE80211_IS_CHAN_QUARTER(chan))
mode = IEEE80211_MODE_QUARTER;
else
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
mode = ieee80211_chan2mode(chan);
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (mode != sc->sc_curmode)
ath_setcurmode(sc, mode);
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
sc->sc_rx_th.wr_chan_flags = htole32(chan->ic_flags);
sc->sc_tx_th.wt_chan_flags = sc->sc_rx_th.wr_chan_flags;
sc->sc_rx_th.wr_chan_freq = htole16(chan->ic_freq);
sc->sc_tx_th.wt_chan_freq = sc->sc_rx_th.wr_chan_freq;
sc->sc_rx_th.wr_chan_ieee = chan->ic_ieee;
sc->sc_tx_th.wt_chan_ieee = sc->sc_rx_th.wr_chan_ieee;
sc->sc_rx_th.wr_chan_maxpow = chan->ic_maxregpower;
sc->sc_tx_th.wt_chan_maxpow = sc->sc_rx_th.wr_chan_maxpow;
Update with last year of work.
2004-12-08 17:34:36 +00:00
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
/*
* Set/change channels. If the channel is really being changed,
Update with last year of work.
2004-12-08 17:34:36 +00:00
* it's done by reseting the chip. To accomplish this we must
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
* first cleanup any pending DMA, then restart stuff after a la
* ath_init.
*/
static int
ath_chan_set(struct ath_softc *sc, struct ieee80211_channel *chan)
{
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
struct ifnet *ifp = sc->sc_ifp;
struct ieee80211com *ic = ifp->if_l2com;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
struct ath_hal *ah = sc->sc_ah;
Update with last year of work.
2004-12-08 17:34:36 +00:00
HAL_CHANNEL hchan;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* Convert to a HAL channel description with
* the flags constrained to reflect the current
* operating mode.
*/
add hack to deal with Ubiquiti XR9 cards, they have a different mapping between 900MHz and 2.4GHz frequencies than SR9 cards; they are distinguished by different country codes
2008-10-27 18:00:43 +00:00
ath_mapchan(ic, &hchan, chan);
Update with last year of work.
2004-12-08 17:34:36 +00:00
debug fixups: reduce noise msgs, report channel flags on reset failure, mark data+link fields in descriptor dumps MFC after: 2 weeks
2006-02-09 22:12:28 +00:00
DPRINTF(sc, ATH_DEBUG_RESET,
"%s: %u (%u MHz, hal flags 0x%x) -> %u (%u MHz, hal flags 0x%x)\n",
Update with last year of work.
2004-12-08 17:34:36 +00:00
__func__,
Update for rev 0.9.16.16 hal: o add dfs+radar hooks; DFS is presently disabled in the hal o channel and mode handling changes o various api changes o be more aggressive about iq calibration settling so ap mode operation is better immediately after startup o rfkill/rfsilent sysctl support o tpc ack/cts sysctl support MFC after: 2 weeks
2006-02-10 19:07:08 +00:00
ath_hal_mhz2ieee(ah, sc->sc_curchan.channel,
Update with last year of work.
2004-12-08 17:34:36 +00:00
sc->sc_curchan.channelFlags),
debug fixups: reduce noise msgs, report channel flags on reset failure, mark data+link fields in descriptor dumps MFC after: 2 weeks
2006-02-09 22:12:28 +00:00
sc->sc_curchan.channel, sc->sc_curchan.channelFlags,
Update for rev 0.9.16.16 hal: o add dfs+radar hooks; DFS is presently disabled in the hal o channel and mode handling changes o various api changes o be more aggressive about iq calibration settling so ap mode operation is better immediately after startup o rfkill/rfsilent sysctl support o tpc ack/cts sysctl support MFC after: 2 weeks
2006-02-10 19:07:08 +00:00
ath_hal_mhz2ieee(ah, hchan.channel, hchan.channelFlags),
debug fixups: reduce noise msgs, report channel flags on reset failure, mark data+link fields in descriptor dumps MFC after: 2 weeks
2006-02-09 22:12:28 +00:00
hchan.channel, hchan.channelFlags);
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (hchan.channel != sc->sc_curchan.channel ||
hchan.channelFlags != sc->sc_curchan.channelFlags) {
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
HAL_STATUS status;
/*
* To switch channels clear any pending DMA operations;
* wait long enough for the RX fifo to drain, reset the
* hardware at the new frequency, and then re-enable
* the relevant bits of the h/w.
*/
ath_hal_intrset(ah, 0); /* disable interrupts */
ath_draintxq(sc); /* clear pending tx frames */
ath_stoprecv(sc); /* turn off frame recv */
add adhoc demo mode support MFC after: 2 weeks
2006-02-09 21:42:53 +00:00
if (!ath_hal_reset(ah, sc->sc_opmode, &hchan, AH_TRUE, &status)) {
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if_printf(ifp, "%s: unable to reset "
(finally) add the hal status to the diagnostic generated after a failed ath_hal_reset call MFC after: 3 days
2008-03-22 16:27:47 +00:00
"channel %u (%u Mhz, flags 0x%x hal flags 0x%x), "
"hal status %u\n", __func__,
ieee80211_chan2ieee(ic, chan), chan->ic_freq,
chan->ic_flags, hchan.channelFlags, status);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
return EIO;
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
sc->sc_curchan = hchan;
o fix setup of sc_diversity; the hal does not give us reliable status after attach, only after a reset o when setting diversity via the sysctl don't update sc_diversity until we know the hal requested worked o while here eliminate sc_hasdiversity and sc_hastpc; just query the hal each time since these are the only places we need to know MFC after: 3 days
2005-07-24 05:11:39 +00:00
sc->sc_diversity = ath_hal_getdiversity(ah);
Update with last year of work.
2004-12-08 17:34:36 +00:00
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
/*
* Re-enable rx framework.
*/
if (ath_startrecv(sc) != 0) {
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if_printf(ifp, "%s: unable to restart recv logic\n",
__func__);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
return EIO;
}
/*
* Change channels and update the h/w rate map
* if we're switching; e.g. 11a to 11b/g.
*/
Update with last year of work.
2004-12-08 17:34:36 +00:00
ath_chan_change(sc, chan);
MFp4 changes to fix locking issues and correct reference count handling of station entries in hostap mode: Input path: o driver is now expected to find the node associated with the sender of a received frame; use ic_bss if none is located o driver passes the (referenced) node into ieee80211_input for use within the wlan module and is responsible for cleaning up on return o the antenna state is no longer passed up with each frame; this is now considered driver-private state and drivers are responsible for keeping it in the driver-private part of a node Output path: Revamp output path for management frames to eliminate redundant locking that causes problems and to correct reference counting bogosity that occurs when stations are timed out due to inactivity (in AP mode). On output the refcnt'd node is stashed in the pkthdr's recvif field (yech) and retrieved by the driver. This eliminates an unref/ref scenario and related node table unlock/lock due to the driver looking up the node. This is particularly important when stations are timed out as this causes a lock order reversal that can result in a deadlock. As a byproduct we also reduce the overhead for sending management frames (minimal). Additional fallout from this is a change to ieee80211_encap to return a refcn't node for tieing to the outbound frame. Node refcnts are not reclaimed until after a frame is completely processed (e.g. in the tx interrupt handler). This is especially important for timed out stations as this deref will be the final one causing the node entry to be reclaimed. Additional semi-related changes: o replace m_copym use with m_copypacket (optimization) o add assert to verify ic_bss is never free'd during normal operation o add comments explaining calling conventions by drivers for frames going in each direction o remove extraneous code that "cannot be executed" (e.g. because pointers may never be null)
2003-08-19 22:17:04 +00:00
/*
* Re-enable interrupts.
*/
ath_hal_intrset(ah, sc->sc_imask);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
return 0;
}
/*
* Periodically recalibrate the PHY to account
* for temperature/environment changes.
*/
static void
ath_calibrate(void *arg)
{
struct ath_softc *sc = arg;
struct ath_hal *ah = sc->sc_ah;
New periodic calibration scheme needed for 11n parts that have multiple algorithms and potentially collect multiple samples. Instead of a single calibration interval we now have short and long intervals; the long interval roughly corresponds to the previous single interval. The short interval is used to speedup collection of samples and happens much quicker. We make calls using the short interval until we're told the calibration work is complete at which point we fallback to the long interval. In addition there is a much longer reset interval used to flush all calibration state and cause everthing to start anew. With these changes you can also disable calibration entirely by setting the long interval to zero.
2008-12-07 19:26:34 +00:00
struct ifnet *ifp = sc->sc_ifp;
don't run the calibration code if scanning, we won't be on the home channel
2009-01-23 03:15:28 +00:00
struct ieee80211com *ic = ifp->if_l2com;
New periodic calibration scheme needed for 11n parts that have multiple algorithms and potentially collect multiple samples. Instead of a single calibration interval we now have short and long intervals; the long interval roughly corresponds to the previous single interval. The short interval is used to speedup collection of samples and happens much quicker. We make calls using the short interval until we're told the calibration work is complete at which point we fallback to the long interval. In addition there is a much longer reset interval used to flush all calibration state and cause everthing to start anew. With these changes you can also disable calibration entirely by setting the long interval to zero.
2008-12-07 19:26:34 +00:00
HAL_BOOL longCal, isCalDone;
int nextcal;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
don't run the calibration code if scanning, we won't be on the home channel
2009-01-23 03:15:28 +00:00
if (ic->ic_flags & IEEE80211_F_SCAN) /* defer, off channel */
goto restart;
New periodic calibration scheme needed for 11n parts that have multiple algorithms and potentially collect multiple samples. Instead of a single calibration interval we now have short and long intervals; the long interval roughly corresponds to the previous single interval. The short interval is used to speedup collection of samples and happens much quicker. We make calls using the short interval until we're told the calibration work is complete at which point we fallback to the long interval. In addition there is a much longer reset interval used to flush all calibration state and cause everthing to start anew. With these changes you can also disable calibration entirely by setting the long interval to zero.
2008-12-07 19:26:34 +00:00
longCal = (ticks - sc->sc_lastlongcal >= ath_longcalinterval*hz);
if (longCal) {
sc->sc_stats.ast_per_cal++;
if (ath_hal_getrfgain(ah) == HAL_RFGAIN_NEED_CHANGE) {
/*
* Rfgain is out of bounds, reset the chip
* to load new gain values.
*/
DPRINTF(sc, ATH_DEBUG_CALIBRATE,
"%s: rfgain change\n", __func__);
sc->sc_stats.ast_per_rfgain++;
ath_reset(ifp);
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
/*
New periodic calibration scheme needed for 11n parts that have multiple algorithms and potentially collect multiple samples. Instead of a single calibration interval we now have short and long intervals; the long interval roughly corresponds to the previous single interval. The short interval is used to speedup collection of samples and happens much quicker. We make calls using the short interval until we're told the calibration work is complete at which point we fallback to the long interval. In addition there is a much longer reset interval used to flush all calibration state and cause everthing to start anew. With these changes you can also disable calibration entirely by setting the long interval to zero.
2008-12-07 19:26:34 +00:00
* If this long cal is after an idle period, then
* reset the data collection state so we start fresh.
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
*/
New periodic calibration scheme needed for 11n parts that have multiple algorithms and potentially collect multiple samples. Instead of a single calibration interval we now have short and long intervals; the long interval roughly corresponds to the previous single interval. The short interval is used to speedup collection of samples and happens much quicker. We make calls using the short interval until we're told the calibration work is complete at which point we fallback to the long interval. In addition there is a much longer reset interval used to flush all calibration state and cause everthing to start anew. With these changes you can also disable calibration entirely by setting the long interval to zero.
2008-12-07 19:26:34 +00:00
if (sc->sc_resetcal) {
(void) ath_hal_calreset(ah, &sc->sc_curchan);
sc->sc_lastcalreset = ticks;
sc->sc_resetcal = 0;
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
New periodic calibration scheme needed for 11n parts that have multiple algorithms and potentially collect multiple samples. Instead of a single calibration interval we now have short and long intervals; the long interval roughly corresponds to the previous single interval. The short interval is used to speedup collection of samples and happens much quicker. We make calls using the short interval until we're told the calibration work is complete at which point we fallback to the long interval. In addition there is a much longer reset interval used to flush all calibration state and cause everthing to start anew. With these changes you can also disable calibration entirely by setting the long interval to zero.
2008-12-07 19:26:34 +00:00
if (ath_hal_calibrateN(ah, &sc->sc_curchan, longCal, &isCalDone)) {
if (longCal) {
/*
* Calibrate noise floor data again in case of change.
*/
ath_hal_process_noisefloor(ah);
}
} else {
Update with last year of work.
2004-12-08 17:34:36 +00:00
DPRINTF(sc, ATH_DEBUG_ANY,
"%s: calibration of channel %u failed\n",
__func__, sc->sc_curchan.channel);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
sc->sc_stats.ast_per_calfail++;
}
New periodic calibration scheme needed for 11n parts that have multiple algorithms and potentially collect multiple samples. Instead of a single calibration interval we now have short and long intervals; the long interval roughly corresponds to the previous single interval. The short interval is used to speedup collection of samples and happens much quicker. We make calls using the short interval until we're told the calibration work is complete at which point we fallback to the long interval. In addition there is a much longer reset interval used to flush all calibration state and cause everthing to start anew. With these changes you can also disable calibration entirely by setting the long interval to zero.
2008-12-07 19:26:34 +00:00
if (!isCalDone) {
don't run the calibration code if scanning, we won't be on the home channel
2009-01-23 03:15:28 +00:00
restart:
New periodic calibration scheme needed for 11n parts that have multiple algorithms and potentially collect multiple samples. Instead of a single calibration interval we now have short and long intervals; the long interval roughly corresponds to the previous single interval. The short interval is used to speedup collection of samples and happens much quicker. We make calls using the short interval until we're told the calibration work is complete at which point we fallback to the long interval. In addition there is a much longer reset interval used to flush all calibration state and cause everthing to start anew. With these changes you can also disable calibration entirely by setting the long interval to zero.
2008-12-07 19:26:34 +00:00
/*
* Use a shorter interval to potentially collect multiple
* data samples required to complete calibration. Once
* we're told the work is done we drop back to a longer
* interval between requests. We're more aggressive doing
* work when operating as an AP to improve operation right
* after startup.
*/
nextcal = (1000*ath_shortcalinterval)/hz;
if (sc->sc_opmode != HAL_M_HOSTAP)
nextcal *= 10;
} else {
nextcal = ath_longcalinterval*hz;
sc->sc_lastlongcal = ticks;
if (sc->sc_lastcalreset == 0)
sc->sc_lastcalreset = sc->sc_lastlongcal;
else if (ticks - sc->sc_lastcalreset >= ath_resetcalinterval*hz)
sc->sc_resetcal = 1; /* setup reset next trip */
}
if (nextcal != 0) {
DPRINTF(sc, ATH_DEBUG_CALIBRATE, "%s: next +%u (%sisCalDone)\n",
__func__, nextcal, isCalDone ? "" : "!");
callout_reset(&sc->sc_cal_ch, nextcal, ath_calibrate, sc);
} else {
DPRINTF(sc, ATH_DEBUG_CALIBRATE, "%s: calibration disabled\n",
__func__);
/* NB: don't rearm timer */
Update for rev 0.9.16.16 hal: o add dfs+radar hooks; DFS is presently disabled in the hal o channel and mode handling changes o various api changes o be more aggressive about iq calibration settling so ap mode operation is better immediately after startup o rfkill/rfsilent sysctl support o tpc ack/cts sysctl support MFC after: 2 weeks
2006-02-10 19:07:08 +00:00
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
static void
ath_scan_start(struct ieee80211com *ic)
{
struct ifnet *ifp = ic->ic_ifp;
struct ath_softc *sc = ifp->if_softc;
struct ath_hal *ah = sc->sc_ah;
u_int32_t rfilt;
/* XXX calibration timer? */
sc->sc_scanning = 1;
sc->sc_syncbeacon = 0;
rfilt = ath_calcrxfilter(sc);
ath_hal_setrxfilter(ah, rfilt);
ath_hal_setassocid(ah, ifp->if_broadcastaddr, 0);
DPRINTF(sc, ATH_DEBUG_STATE, "%s: RX filter 0x%x bssid %s aid 0\n",
__func__, rfilt, ether_sprintf(ifp->if_broadcastaddr));
}
static void
ath_scan_end(struct ieee80211com *ic)
{
struct ifnet *ifp = ic->ic_ifp;
struct ath_softc *sc = ifp->if_softc;
struct ath_hal *ah = sc->sc_ah;
u_int32_t rfilt;
sc->sc_scanning = 0;
rfilt = ath_calcrxfilter(sc);
ath_hal_setrxfilter(ah, rfilt);
ath_hal_setassocid(ah, sc->sc_curbssid, sc->sc_curaid);
ath_hal_process_noisefloor(ah);
DPRINTF(sc, ATH_DEBUG_STATE, "%s: RX filter 0x%x bssid %s aid 0x%x\n",
__func__, rfilt, ether_sprintf(sc->sc_curbssid),
sc->sc_curaid);
}
static void
ath_set_channel(struct ieee80211com *ic)
{
struct ifnet *ifp = ic->ic_ifp;
struct ath_softc *sc = ifp->if_softc;
(void) ath_chan_set(sc, ic->ic_curchan);
/*
* If we are returning to our bss channel then mark state
* so the next recv'd beacon's tsf will be used to sync the
* beacon timers. Note that since we only hear beacons in
* sta/ibss mode this has no effect in other operating modes.
*/
if (!sc->sc_scanning && ic->ic_curchan == ic->ic_bsschan)
sc->sc_syncbeacon = 1;
}
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
/*
* Walk the vap list and check if there any vap's in RUN state.
*/
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
static int
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ath_isanyrunningvaps(struct ieee80211vap *this)
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
{
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
struct ieee80211com *ic = this->iv_ic;
struct ieee80211vap *vap;
IEEE80211_LOCK_ASSERT(ic);
TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) {
if (vap != this && vap->iv_state == IEEE80211_S_RUN)
return 1;
}
return 0;
}
static int
ath_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
{
struct ieee80211com *ic = vap->iv_ic;
struct ath_softc *sc = ic->ic_ifp->if_softc;
struct ath_vap *avp = ATH_VAP(vap);
track changes to 802.11 code: o override new_state method per new model o use ieee80211_state_name instead of private copy
2003-07-20 21:38:20 +00:00
struct ath_hal *ah = sc->sc_ah;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
struct ieee80211_node *ni = NULL;
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
int i, error, stamode;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
u_int32_t rfilt;
static const HAL_LED_STATE leds[] = {
HAL_LED_INIT, /* IEEE80211_S_INIT */
HAL_LED_SCAN, /* IEEE80211_S_SCAN */
HAL_LED_AUTH, /* IEEE80211_S_AUTH */
HAL_LED_ASSOC, /* IEEE80211_S_ASSOC */
fix led blinking in RUN state: the addition of the CAC state moved IEEE80211_S_RUN and broke the array lookup used to find the LED flags Approved by: re (blanket wireless)
2007-09-17 05:12:19 +00:00
HAL_LED_RUN, /* IEEE80211_S_CAC */
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
HAL_LED_RUN, /* IEEE80211_S_RUN */
fix led blinking in RUN state: the addition of the CAC state moved IEEE80211_S_RUN and broke the array lookup used to find the LED flags Approved by: re (blanket wireless)
2007-09-17 05:12:19 +00:00
HAL_LED_RUN, /* IEEE80211_S_CSA */
HAL_LED_RUN, /* IEEE80211_S_SLEEP */
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
};
Update with last year of work.
2004-12-08 17:34:36 +00:00
DPRINTF(sc, ATH_DEBUG_STATE, "%s: %s -> %s\n", __func__,
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ieee80211_state_name[vap->iv_state],
Update with last year of work.
2004-12-08 17:34:36 +00:00
ieee80211_state_name[nstate]);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
callout_stop(&sc->sc_cal_ch);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
ath_hal_setledstate(ah, leds[nstate]); /* set LED */
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if (nstate == IEEE80211_S_SCAN) {
disable interrupts when transitioning to INIT state so we don't rx frames
2005-01-18 19:31:31 +00:00
/*
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
* Scanning: turn off beacon miss and don't beacon.
* Mark beacon state so when we reach RUN state we'll
* [re]setup beacons. Unblock the task q thread so
* deferred interrupt processing is done.
disable interrupts when transitioning to INIT state so we don't rx frames
2005-01-18 19:31:31 +00:00
*/
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ath_hal_intrset(ah,
sc->sc_imask &~ (HAL_INT_SWBA | HAL_INT_BMISS));
Drain task q items when transitioning to INIT state; this closes a race seen on smp laptops when suspending where the rx task can be entered after the interface is detach'd. NB: use of taskqueue_drain while holding the softc mutex is problematic Submitted by: ambrisko MFC after: 1 month
2007-05-29 16:13:59 +00:00
sc->sc_imask &= ~(HAL_INT_SWBA | HAL_INT_BMISS);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
sc->sc_beacons = 0;
taskqueue_unblock(sc->sc_tq);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ni = vap->iv_bss;
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
rfilt = ath_calcrxfilter(sc);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
stamode = (vap->iv_opmode == IEEE80211_M_STA ||
install bssid for ahdemo mode too
2008-10-27 17:54:17 +00:00
vap->iv_opmode == IEEE80211_M_AHDEMO ||
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
vap->iv_opmode == IEEE80211_M_IBSS);
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
if (stamode && nstate == IEEE80211_S_RUN) {
sc->sc_curaid = ni->ni_associd;
IEEE80211_ADDR_COPY(sc->sc_curbssid, ni->ni_bssid);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ath_hal_setassocid(ah, sc->sc_curbssid, sc->sc_curaid);
}
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
DPRINTF(sc, ATH_DEBUG_STATE, "%s: RX filter 0x%x bssid %s aid 0x%x\n",
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
__func__, rfilt, ether_sprintf(sc->sc_curbssid), sc->sc_curaid);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
ath_hal_setrxfilter(ah, rfilt);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
/* XXX is this to restore keycache on resume? */
if (vap->iv_opmode != IEEE80211_M_STA &&
(vap->iv_flags & IEEE80211_F_PRIVACY)) {
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
for (i = 0; i < IEEE80211_WEP_NKID; i++)
if (ath_hal_keyisvalid(ah, i))
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
ath_hal_keysetmac(ah, i, ni->ni_bssid);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
/*
* Invoke the parent method to do net80211 work.
*/
error = avp->av_newstate(vap, nstate, arg);
if (error != 0)
goto bad;
Update with last year of work.
2004-12-08 17:34:36 +00:00
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
if (nstate == IEEE80211_S_RUN) {
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
/* NB: collect bss node again, it may have changed */
ni = vap->iv_bss;
Update with last year of work.
2004-12-08 17:34:36 +00:00
DPRINTF(sc, ATH_DEBUG_STATE,
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
"%s(RUN): iv_flags 0x%08x bintvl %d bssid %s "
"capinfo 0x%04x chan %d\n", __func__,
vap->iv_flags, ni->ni_intval, ether_sprintf(ni->ni_bssid),
ni->ni_capinfo, ieee80211_chan2ieee(ic, ic->ic_curchan));
switch (vap->iv_opmode) {
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
#ifdef ATH_SUPPORT_TDMA
case IEEE80211_M_AHDEMO:
if ((vap->iv_caps & IEEE80211_C_TDMA) == 0)
break;
/* fall thru... */
#endif
Misc keycache changes: o purge ath_initkeytable; it's not needed o add multicast key search support for supporting multiple group keys (disabled for now; requires updated hal) o create keycache entry for stations using open auth so they get h/w antenna management support o add keycache -> node mapping table; eliminates mac-based lookup in the net80211 layer
2005-06-06 16:39:21 +00:00
case IEEE80211_M_HOSTAP:
case IEEE80211_M_IBSS:
beacon handling fixups for adhoc mode: o don't reclaim any previous beacon state in ath_beacon_alloc; do it explicitly in ath_newstate o reference count the node held in the beacon frame state block o process ibss merge more intelligently; let the state machine do the right thing instead of explicitly setting the new bssi id o explicitly stop tx dma before doing beacon setup to handle the ibss merge case
2005-01-24 20:05:03 +00:00
/*
Misc keycache changes: o purge ath_initkeytable; it's not needed o add multicast key search support for supporting multiple group keys (disabled for now; requires updated hal) o create keycache entry for stations using open auth so they get h/w antenna management support o add keycache -> node mapping table; eliminates mac-based lookup in the net80211 layer
2005-06-06 16:39:21 +00:00
* Allocate and setup the beacon frame.
*
beacon handling fixups for adhoc mode: o don't reclaim any previous beacon state in ath_beacon_alloc; do it explicitly in ath_newstate o reference count the node held in the beacon frame state block o process ibss merge more intelligently; let the state machine do the right thing instead of explicitly setting the new bssi id o explicitly stop tx dma before doing beacon setup to handle the ibss merge case
2005-01-24 20:05:03 +00:00
* Stop any previous beacon DMA. This may be
* necessary, for example, when an ibss merge
* causes reconfiguration; there will be a state
* transition from RUN->RUN that means we may
* be called with beacon transmission active.
*/
ath_hal_stoptxdma(ah, sc->sc_bhalq);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
error = ath_beacon_alloc(sc, ni);
if (error != 0)
goto bad;
add adhoc demo mode support MFC after: 2 weeks
2006-02-09 21:42:53 +00:00
/*
Beacon timer setup fixes: o pull nexttbtt forward in adhoc mode too o resync beacon timers on joining a bss or ibss as the tstamp we collected while scanning is almost certainly out of date Note we may need to refine the ibss mode check in ath_recv_mgmt. Reviewed by: avatar, dyoung Obtained from: atheros MFC after: 2 weeks
2006-02-09 22:21:53 +00:00
* If joining an adhoc network defer beacon timer
* configuration to the next beacon frame so we
* have a current TSF to use. Otherwise we're
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
* starting an ibss/bss so there's no need to delay;
* if this is the first vap moving to RUN state, then
* beacon state needs to be [re]configured.
add adhoc demo mode support MFC after: 2 weeks
2006-02-09 21:42:53 +00:00
*/
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if (vap->iv_opmode == IEEE80211_M_IBSS &&
ni->ni_tstamp.tsf != 0) {
Beacon timer setup fixes: o pull nexttbtt forward in adhoc mode too o resync beacon timers on joining a bss or ibss as the tstamp we collected while scanning is almost certainly out of date Note we may need to refine the ibss mode check in ath_recv_mgmt. Reviewed by: avatar, dyoung Obtained from: atheros MFC after: 2 weeks
2006-02-09 22:21:53 +00:00
sc->sc_syncbeacon = 1;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
} else if (!sc->sc_beacons) {
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
#ifdef ATH_SUPPORT_TDMA
if (vap->iv_caps & IEEE80211_C_TDMA)
ath_tdma_config(sc, vap);
else
#endif
ath_beacon_config(sc, vap);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
sc->sc_beacons = 1;
}
Misc keycache changes: o purge ath_initkeytable; it's not needed o add multicast key search support for supporting multiple group keys (disabled for now; requires updated hal) o create keycache entry for stations using open auth so they get h/w antenna management support o add keycache -> node mapping table; eliminates mac-based lookup in the net80211 layer
2005-06-06 16:39:21 +00:00
break;
case IEEE80211_M_STA:
add adhoc demo mode support MFC after: 2 weeks
2006-02-09 21:42:53 +00:00
/*
Beacon timer setup fixes: o pull nexttbtt forward in adhoc mode too o resync beacon timers on joining a bss or ibss as the tstamp we collected while scanning is almost certainly out of date Note we may need to refine the ibss mode check in ath_recv_mgmt. Reviewed by: avatar, dyoung Obtained from: atheros MFC after: 2 weeks
2006-02-09 22:21:53 +00:00
* Defer beacon timer configuration to the next
* beacon frame so we have a current TSF to use
* (any TSF collected when scanning is likely old).
add adhoc demo mode support MFC after: 2 weeks
2006-02-09 21:42:53 +00:00
*/
Beacon timer setup fixes: o pull nexttbtt forward in adhoc mode too o resync beacon timers on joining a bss or ibss as the tstamp we collected while scanning is almost certainly out of date Note we may need to refine the ibss mode check in ath_recv_mgmt. Reviewed by: avatar, dyoung Obtained from: atheros MFC after: 2 weeks
2006-02-09 22:21:53 +00:00
sc->sc_syncbeacon = 1;
Misc keycache changes: o purge ath_initkeytable; it's not needed o add multicast key search support for supporting multiple group keys (disabled for now; requires updated hal) o create keycache entry for stations using open auth so they get h/w antenna management support o add keycache -> node mapping table; eliminates mac-based lookup in the net80211 layer
2005-06-06 16:39:21 +00:00
break;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
case IEEE80211_M_MONITOR:
/*
* Monitor mode vaps have only INIT->RUN and RUN->RUN
* transitions so we must re-enable interrupts here to
* handle the case of a single monitor mode vap.
*/
ath_hal_intrset(ah, sc->sc_imask);
break;
case IEEE80211_M_WDS:
break;
Misc keycache changes: o purge ath_initkeytable; it's not needed o add multicast key search support for supporting multiple group keys (disabled for now; requires updated hal) o create keycache entry for stations using open auth so they get h/w antenna management support o add keycache -> node mapping table; eliminates mac-based lookup in the net80211 layer
2005-06-06 16:39:21 +00:00
default:
break;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Update monitoring support: o record tsf in tx+rx frames o switch from raw rssi to dbm for signal data and record both signal and noise floor data (hacked for now to assume a fixed noise floor; is correct with new hal) o add monpass sysctl to control which rx'd frames are passed up with errors; especially useful to see frames with CRC errors o mark 'd packets w/ a CRC error with radiotap's BADFCS flag Also add placeholder code for calibrating the noise floor when using newer hals. Reviewed by: avatar MFC after: 1 week
2006-01-09 17:13:20 +00:00
/*
* Let the hal process statistics collected during a
* scan so it can provide calibrated noise floor data.
*/
ath_hal_process_noisefloor(ah);
move hal statistics to softc; the per-node stats are overkill, they're only used when operating in station mode MFC after: 2 weeks
2006-02-09 21:23:44 +00:00
/*
* Reset rssi stats; maybe not the best place...
*/
sc->sc_halstats.ns_avgbrssi = ATH_RSSI_DUMMY_MARKER;
sc->sc_halstats.ns_avgrssi = ATH_RSSI_DUMMY_MARKER;
sc->sc_halstats.ns_avgtxrssi = ATH_RSSI_DUMMY_MARKER;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
/*
* Finally, start any timers and the task q thread
* (in case we didn't go through SCAN state).
*/
New periodic calibration scheme needed for 11n parts that have multiple algorithms and potentially collect multiple samples. Instead of a single calibration interval we now have short and long intervals; the long interval roughly corresponds to the previous single interval. The short interval is used to speedup collection of samples and happens much quicker. We make calls using the short interval until we're told the calibration work is complete at which point we fallback to the long interval. In addition there is a much longer reset interval used to flush all calibration state and cause everthing to start anew. With these changes you can also disable calibration entirely by setting the long interval to zero.
2008-12-07 19:26:34 +00:00
if (ath_longcalinterval != 0) {
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
/* start periodic recalibration timer */
New periodic calibration scheme needed for 11n parts that have multiple algorithms and potentially collect multiple samples. Instead of a single calibration interval we now have short and long intervals; the long interval roughly corresponds to the previous single interval. The short interval is used to speedup collection of samples and happens much quicker. We make calls using the short interval until we're told the calibration work is complete at which point we fallback to the long interval. In addition there is a much longer reset interval used to flush all calibration state and cause everthing to start anew. With these changes you can also disable calibration entirely by setting the long interval to zero.
2008-12-07 19:26:34 +00:00
callout_reset(&sc->sc_cal_ch, 1, ath_calibrate, sc);
} else {
DPRINTF(sc, ATH_DEBUG_CALIBRATE,
"%s: calibration disabled\n", __func__);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
}
taskqueue_unblock(sc->sc_tq);
} else if (nstate == IEEE80211_S_INIT) {
/*
* If there are no vaps left in RUN state then
* shutdown host/driver operation:
* o disable interrupts
* o disable the task queue thread
* o mark beacon processing as stopped
*/
if (!ath_isanyrunningvaps(vap)) {
sc->sc_imask &= ~(HAL_INT_SWBA | HAL_INT_BMISS);
/* disable interrupts */
ath_hal_intrset(ah, sc->sc_imask &~ HAL_INT_GLOBAL);
taskqueue_block(sc->sc_tq);
sc->sc_beacons = 0;
}
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
#ifdef ATH_SUPPORT_TDMA
ath_hal_setcca(ah, AH_TRUE);
#endif
Update with last year of work.
2004-12-08 17:34:36 +00:00
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
bad:
return error;
}
Misc keycache changes: o purge ath_initkeytable; it's not needed o add multicast key search support for supporting multiple group keys (disabled for now; requires updated hal) o create keycache entry for stations using open auth so they get h/w antenna management support o add keycache -> node mapping table; eliminates mac-based lookup in the net80211 layer
2005-06-06 16:39:21 +00:00
/*
* Allocate a key cache slot to the station so we can
* setup a mapping from key index to node. The key cache
* slot is needed for managing antenna state and for
* compression when stations do not use crypto. We do
* it uniliaterally here; if crypto is employed this slot
* will be reassigned.
*/
static void
ath_setup_stationkey(struct ieee80211_node *ni)
{
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
struct ieee80211vap *vap = ni->ni_vap;
struct ath_softc *sc = vap->iv_ic->ic_ifp->if_softc;
Split crypto tx+rx key indices and add a key index -> node mapping table: Crypto changes: o change driver/net80211 key_alloc api to return tx+rx key indices; a driver can leave the rx key index set to IEEE80211_KEYIX_NONE or set it to be the same as the tx key index (the former disables use of the key index in building the keyix->node mapping table and is the default setup for naive drivers by null_key_alloc) o add cs_max_keyid to crypto state to specify the max h/w key index a driver will return; this is used to allocate the key index mapping table and to bounds check table loookups o while here introduce ieee80211_keyix (finally) for the type of a h/w key index o change crypto notifiers for rx failures to pass the rx key index up as appropriate (michael failure, replay, etc.) Node table changes: o optionally allocate a h/w key index to node mapping table for the station table using the max key index setting supplied by drivers (note the scan table does not get a map) o defer node table allocation to lateattach so the driver has a chance to set the max key id to size the key index map o while here also defer the aid bitmap allocation o add new ieee80211_find_rxnode_withkey api to find a sta/node entry on frame receive with an optional h/w key index to use in checking mapping table; also updates the map if it does a hash lookup and the found node has a rx key index set in the unicast key; note this work is separated from the old ieee80211_find_rxnode call so drivers do not need to be aware of the new mechanism o move some node table manipulation under the node table lock to close a race on node delete o add ieee80211_node_delucastkey to do the dirty work of deleting unicast key state for a node (deletes any key and handles key map references) Ath driver: o nuke private sc_keyixmap mechansim in favor of net80211 support o update key alloc api These changes close several race conditions for the ath driver operating in ap mode. Other drivers should see no change. Station mode operation for ath no longer uses the key index map but performance tests show no noticeable change and this will be fixed when the scan table is eliminated with the new scanning support. Tested by: Michal Mertl, avatar, others Reviewed by: avatar, others MFC after: 2 weeks
2005-08-08 18:46:36 +00:00
ieee80211_keyix keyix, rxkeyix;
Misc keycache changes: o purge ath_initkeytable; it's not needed o add multicast key search support for supporting multiple group keys (disabled for now; requires updated hal) o create keycache entry for stations using open auth so they get h/w antenna management support o add keycache -> node mapping table; eliminates mac-based lookup in the net80211 layer
2005-06-06 16:39:21 +00:00
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if (!ath_key_alloc(vap, &ni->ni_ucastkey, &keyix, &rxkeyix)) {
Misc keycache changes: o purge ath_initkeytable; it's not needed o add multicast key search support for supporting multiple group keys (disabled for now; requires updated hal) o create keycache entry for stations using open auth so they get h/w antenna management support o add keycache -> node mapping table; eliminates mac-based lookup in the net80211 layer
2005-06-06 16:39:21 +00:00
/*
* Key cache is full; we'll fall back to doing
* the more expensive lookup in software. Note
* this also means no h/w compression.
*/
/* XXX msg+statistic */
} else {
Split crypto tx+rx key indices and add a key index -> node mapping table: Crypto changes: o change driver/net80211 key_alloc api to return tx+rx key indices; a driver can leave the rx key index set to IEEE80211_KEYIX_NONE or set it to be the same as the tx key index (the former disables use of the key index in building the keyix->node mapping table and is the default setup for naive drivers by null_key_alloc) o add cs_max_keyid to crypto state to specify the max h/w key index a driver will return; this is used to allocate the key index mapping table and to bounds check table loookups o while here introduce ieee80211_keyix (finally) for the type of a h/w key index o change crypto notifiers for rx failures to pass the rx key index up as appropriate (michael failure, replay, etc.) Node table changes: o optionally allocate a h/w key index to node mapping table for the station table using the max key index setting supplied by drivers (note the scan table does not get a map) o defer node table allocation to lateattach so the driver has a chance to set the max key id to size the key index map o while here also defer the aid bitmap allocation o add new ieee80211_find_rxnode_withkey api to find a sta/node entry on frame receive with an optional h/w key index to use in checking mapping table; also updates the map if it does a hash lookup and the found node has a rx key index set in the unicast key; note this work is separated from the old ieee80211_find_rxnode call so drivers do not need to be aware of the new mechanism o move some node table manipulation under the node table lock to close a race on node delete o add ieee80211_node_delucastkey to do the dirty work of deleting unicast key state for a node (deletes any key and handles key map references) Ath driver: o nuke private sc_keyixmap mechansim in favor of net80211 support o update key alloc api These changes close several race conditions for the ath driver operating in ap mode. Other drivers should see no change. Station mode operation for ath no longer uses the key index map but performance tests show no noticeable change and this will be fixed when the scan table is eliminated with the new scanning support. Tested by: Michal Mertl, avatar, others Reviewed by: avatar, others MFC after: 2 weeks
2005-08-08 18:46:36 +00:00
/* XXX locking? */
Misc keycache changes: o purge ath_initkeytable; it's not needed o add multicast key search support for supporting multiple group keys (disabled for now; requires updated hal) o create keycache entry for stations using open auth so they get h/w antenna management support o add keycache -> node mapping table; eliminates mac-based lookup in the net80211 layer
2005-06-06 16:39:21 +00:00
ni->ni_ucastkey.wk_keyix = keyix;
Split crypto tx+rx key indices and add a key index -> node mapping table: Crypto changes: o change driver/net80211 key_alloc api to return tx+rx key indices; a driver can leave the rx key index set to IEEE80211_KEYIX_NONE or set it to be the same as the tx key index (the former disables use of the key index in building the keyix->node mapping table and is the default setup for naive drivers by null_key_alloc) o add cs_max_keyid to crypto state to specify the max h/w key index a driver will return; this is used to allocate the key index mapping table and to bounds check table loookups o while here introduce ieee80211_keyix (finally) for the type of a h/w key index o change crypto notifiers for rx failures to pass the rx key index up as appropriate (michael failure, replay, etc.) Node table changes: o optionally allocate a h/w key index to node mapping table for the station table using the max key index setting supplied by drivers (note the scan table does not get a map) o defer node table allocation to lateattach so the driver has a chance to set the max key id to size the key index map o while here also defer the aid bitmap allocation o add new ieee80211_find_rxnode_withkey api to find a sta/node entry on frame receive with an optional h/w key index to use in checking mapping table; also updates the map if it does a hash lookup and the found node has a rx key index set in the unicast key; note this work is separated from the old ieee80211_find_rxnode call so drivers do not need to be aware of the new mechanism o move some node table manipulation under the node table lock to close a race on node delete o add ieee80211_node_delucastkey to do the dirty work of deleting unicast key state for a node (deletes any key and handles key map references) Ath driver: o nuke private sc_keyixmap mechansim in favor of net80211 support o update key alloc api These changes close several race conditions for the ath driver operating in ap mode. Other drivers should see no change. Station mode operation for ath no longer uses the key index map but performance tests show no noticeable change and this will be fixed when the scan table is eliminated with the new scanning support. Tested by: Michal Mertl, avatar, others Reviewed by: avatar, others MFC after: 2 weeks
2005-08-08 18:46:36 +00:00
ni->ni_ucastkey.wk_rxkeyix = rxkeyix;
Cleanup power handling and fix suspend/resume: o do not put the chip into full sleep in ath_stop as it gains nothing and causes many parts to hang in ath_detach because we may touch the chip during vap teardown; this may also fix issues with unloading the module o add a note in ath_detach to explain ath_hal_detach puts the chip in low power mode; this is useful to know as it means unloading the module will place a pci device in the lowest possible power state o leave an #ifdef notyet marker for powering down the chip when a device is marked down; we can't do that until we handle all the ways the driver may be entered and touch the chip o fix resume by reloading the h/w key cache as it's been clobbered (for pci) by the socket being powered off; for station mode we directly stop+init the chip and then simulate a beacon miss to get the upper layers sync'd up; for other configs we must brute force stop+start the vaps so they go through the state machine
2008-05-29 00:10:48 +00:00
IEEE80211_ADDR_COPY(ni->ni_ucastkey.wk_macaddr, ni->ni_macaddr);
Misc keycache changes: o purge ath_initkeytable; it's not needed o add multicast key search support for supporting multiple group keys (disabled for now; requires updated hal) o create keycache entry for stations using open auth so they get h/w antenna management support o add keycache -> node mapping table; eliminates mac-based lookup in the net80211 layer
2005-06-06 16:39:21 +00:00
/* NB: this will create a pass-thru key entry */
Cleanup power handling and fix suspend/resume: o do not put the chip into full sleep in ath_stop as it gains nothing and causes many parts to hang in ath_detach because we may touch the chip during vap teardown; this may also fix issues with unloading the module o add a note in ath_detach to explain ath_hal_detach puts the chip in low power mode; this is useful to know as it means unloading the module will place a pci device in the lowest possible power state o leave an #ifdef notyet marker for powering down the chip when a device is marked down; we can't do that until we handle all the ways the driver may be entered and touch the chip o fix resume by reloading the h/w key cache as it's been clobbered (for pci) by the socket being powered off; for station mode we directly stop+init the chip and then simulate a beacon miss to get the upper layers sync'd up; for other configs we must brute force stop+start the vaps so they go through the state machine
2008-05-29 00:10:48 +00:00
ath_keyset(sc, &ni->ni_ucastkey, vap->iv_bss);
Misc keycache changes: o purge ath_initkeytable; it's not needed o add multicast key search support for supporting multiple group keys (disabled for now; requires updated hal) o create keycache entry for stations using open auth so they get h/w antenna management support o add keycache -> node mapping table; eliminates mac-based lookup in the net80211 layer
2005-06-06 16:39:21 +00:00
}
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
/*
* Setup driver-specific state for a newly associated node.
* Note that we're called also on a re-associate, the isnew
* param tells us if this is the first time or not.
*/
static void
simplify ic_newassoc callback MFC after: 3 days
2005-07-22 17:57:16 +00:00
ath_newassoc(struct ieee80211_node *ni, int isnew)
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
{
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
struct ath_node *an = ATH_NODE(ni);
struct ieee80211vap *vap = ni->ni_vap;
struct ath_softc *sc = vap->iv_ic->ic_ifp->if_softc;
remove driver-private equivalent of ni_txparms; it's now superfluous
2008-10-27 17:03:24 +00:00
const struct ieee80211_txparam *tp = ni->ni_txparms;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
remove driver-private equivalent of ni_txparms; it's now superfluous
2008-10-27 17:03:24 +00:00
an->an_mcastrix = ath_tx_findrix(sc->sc_currates, tp->mcastrate);
an->an_mgmtrix = ath_tx_findrix(sc->sc_currates, tp->mgmtrate);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ath_rate_newassoc(sc, an, isnew);
if (isnew &&
(vap->iv_flags & IEEE80211_F_PRIVACY) == 0 && sc->sc_hasclrkey &&
ni->ni_ucastkey.wk_keyix == IEEE80211_KEYIX_NONE)
Misc keycache changes: o purge ath_initkeytable; it's not needed o add multicast key search support for supporting multiple group keys (disabled for now; requires updated hal) o create keycache entry for stations using open auth so they get h/w antenna management support o add keycache -> node mapping table; eliminates mac-based lookup in the net80211 layer
2005-06-06 16:39:21 +00:00
ath_setup_stationkey(ni);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
static int
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
getchannels(struct ath_softc *sc, int *nchans, struct ieee80211_channel chans[],
int cc, int ecm, int outdoor)
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
{
struct ath_hal *ah = sc->sc_ah;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
HAL_CHANNEL *halchans;
int i, nhalchans, error;
add regdomain debug msgs
2008-10-27 17:35:09 +00:00
DPRINTF(sc, ATH_DEBUG_REGDOMAIN, "%s: cc %u outdoor %u ecm %u\n",
__func__, cc, outdoor, ecm);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
halchans = malloc(IEEE80211_CHAN_MAX * sizeof(HAL_CHANNEL),
M_TEMP, M_NOWAIT | M_ZERO);
if (halchans == NULL) {
device_printf(sc->sc_dev,
"%s: unable to allocate channel table\n", __func__);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
return ENOMEM;
}
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
error = 0;
if (!ath_hal_init_channels(ah, halchans, IEEE80211_CHAN_MAX, &nhalchans,
Regdomain fixups: o pass country code, outdoor indication, and ecm mode into the hal when requesting a channel list o add a console msg when regulatory setup fails o add placeholder code to map between Atheros sku's and 802.11 sku's that handles only the debug country code used to unlock the full channel list (to be used only for debugging) o fix multiple instances of mismapping the 802.11 location to the outdoor indication (anywhere may be outdoor also)
2008-10-27 17:41:32 +00:00
NULL, 0, NULL, cc, HAL_MODE_ALL, outdoor, ecm)) {
u_int32_t rd;
(void) ath_hal_getregdomain(ah, &rd);
device_printf(sc->sc_dev, "ath_hal_init_channels failed, "
"rd %d cc %u outdoor %u ecm %u\n", rd, cc, outdoor, ecm);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
error = EINVAL;
goto done;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if (nchans == NULL) /* no table requested */
goto done;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
/*
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
* Convert HAL channels to ieee80211 ones.
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
*/
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
for (i = 0; i < nhalchans; i++) {
HAL_CHANNEL *c = &halchans[i];
struct ieee80211_channel *ichan = &chans[i];
Update for rev 0.9.16.16 hal: o add dfs+radar hooks; DFS is presently disabled in the hal o channel and mode handling changes o various api changes o be more aggressive about iq calibration settling so ap mode operation is better immediately after startup o rfkill/rfsilent sysctl support o tpc ack/cts sysctl support MFC after: 2 weeks
2006-02-10 19:07:08 +00:00
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
ichan->ic_ieee = ath_hal_mhz2ieee(ah, c->channel,
c->channelFlags);
Add initial support for 900MHz cards like the Ubiquiti SR9: o eliminate assumptions that half/quarter rate channels on exist in 11a o handle frequency mapping between hal and net80211; hal gives us freq's in the range 2422..2437 that we remap MFC after: 1 month
2007-01-15 01:15:57 +00:00
if (bootverbose)
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
device_printf(sc->sc_dev, "hal channel %u/%x -> %u "
"maxpow %d minpow %d maxreg %d\n",
c->channel, c->channelFlags, ichan->ic_ieee,
c->maxTxPower, c->minTxPower, c->maxRegTxPower);
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
ichan->ic_freq = c->channel;
if ((c->channelFlags & CHANNEL_PUREG) == CHANNEL_PUREG) {
/*
* Except for AR5211, HAL's PUREG means mixed
* DSSS and OFDM.
*/
ichan->ic_flags = c->channelFlags &~ CHANNEL_PUREG;
ichan->ic_flags |= IEEE80211_CHAN_G;
} else {
ichan->ic_flags = c->channelFlags;
}
Add initial support for 900MHz cards like the Ubiquiti SR9: o eliminate assumptions that half/quarter rate channels on exist in 11a o handle frequency mapping between hal and net80211; hal gives us freq's in the range 2422..2437 that we remap MFC after: 1 month
2007-01-15 01:15:57 +00:00
if (ath_hal_isgsmsku(ah)) {
add hack to deal with Ubiquiti XR9 cards, they have a different mapping between 900MHz and 2.4GHz frequencies than SR9 cards; they are distinguished by different country codes
2008-10-27 18:00:43 +00:00
/*
* Remap to true frequencies: Ubiquiti XR9 cards use a
* frequency mapping different from their SR9 cards.
* We define special country codes to deal with this.
*/
if (cc == CTRY_XR9)
add frequency mapping for the Zcomax GZ-901
2008-11-30 18:27:10 +00:00
ichan->ic_freq = ichan->ic_freq - 1520;
else if (cc == CTRY_GZ901)
ichan->ic_freq = ichan->ic_freq - 1544;
add hack to deal with Ubiquiti XR9 cards, they have a different mapping between 900MHz and 2.4GHz frequencies than SR9 cards; they are distinguished by different country codes
2008-10-27 18:00:43 +00:00
else
add frequency mapping for the Zcomax GZ-901
2008-11-30 18:27:10 +00:00
ichan->ic_freq = 3344 - ichan->ic_freq;
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
ichan->ic_flags |= IEEE80211_CHAN_GSM;
ichan->ic_ieee = ieee80211_mhz2ieee(ichan->ic_freq,
ichan->ic_flags);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
ichan->ic_maxregpower = c->maxRegTxPower; /* dBm */
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
/* XXX: old hal's don't provide maxTxPower for some parts */
ichan->ic_maxpower = (c->maxTxPower != 0) ?
c->maxTxPower : 2*c->maxRegTxPower; /* 1/2 dBm */
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
ichan->ic_minpower = c->minTxPower; /* 1/2 dBm */
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
*nchans = nhalchans;
done:
free(halchans, M_TEMP);
return error;
}
Regdomain fixups: o pass country code, outdoor indication, and ecm mode into the hal when requesting a channel list o add a console msg when regulatory setup fails o add placeholder code to map between Atheros sku's and 802.11 sku's that handles only the debug country code used to unlock the full channel list (to be used only for debugging) o fix multiple instances of mismapping the 802.11 location to the outdoor indication (anywhere may be outdoor also)
2008-10-27 17:41:32 +00:00
/* XXX hard to include ieee80211_regdomain.h right now */
#define SKU_DEBUG 0x1ff
static void
ath_maprd(const struct ieee80211_regdomain *rd,
u_int32_t *ath_rd, u_int32_t *ath_cc)
{
/* map SKU's to Atheros sku's */
switch (rd->regdomain) {
case SKU_DEBUG:
if (rd->country == 0) {
*ath_rd = 0;
*ath_cc = CTRY_DEBUG;
return;
}
break;
}
*ath_rd = rd->regdomain;
*ath_cc = rd->country;
}
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
static int
ath_setregdomain(struct ieee80211com *ic, struct ieee80211_regdomain *rd,
int nchans, struct ieee80211_channel chans[])
{
struct ath_softc *sc = ic->ic_ifp->if_softc;
struct ath_hal *ah = sc->sc_ah;
Regdomain fixups: o pass country code, outdoor indication, and ecm mode into the hal when requesting a channel list o add a console msg when regulatory setup fails o add placeholder code to map between Atheros sku's and 802.11 sku's that handles only the debug country code used to unlock the full channel list (to be used only for debugging) o fix multiple instances of mismapping the 802.11 location to the outdoor indication (anywhere may be outdoor also)
2008-10-27 17:41:32 +00:00
u_int32_t ord, regdomain, cc;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
int error;
(void) ath_hal_getregdomain(ah, &ord);
Regdomain fixups: o pass country code, outdoor indication, and ecm mode into the hal when requesting a channel list o add a console msg when regulatory setup fails o add placeholder code to map between Atheros sku's and 802.11 sku's that handles only the debug country code used to unlock the full channel list (to be used only for debugging) o fix multiple instances of mismapping the 802.11 location to the outdoor indication (anywhere may be outdoor also)
2008-10-27 17:41:32 +00:00
ath_maprd(rd, &regdomain, &cc);
add regdomain debug msgs
2008-10-27 17:35:09 +00:00
DPRINTF(sc, ATH_DEBUG_REGDOMAIN,
Regdomain fixups: o pass country code, outdoor indication, and ecm mode into the hal when requesting a channel list o add a console msg when regulatory setup fails o add placeholder code to map between Atheros sku's and 802.11 sku's that handles only the debug country code used to unlock the full channel list (to be used only for debugging) o fix multiple instances of mismapping the 802.11 location to the outdoor indication (anywhere may be outdoor also)
2008-10-27 17:41:32 +00:00
"%s: rd %u cc %u location %c ecm %u (mapped rd %u cc %u)\n",
__func__, rd->regdomain, rd->country, rd->location, rd->ecm,
regdomain, cc);
ath_hal_setregdomain(ah, regdomain);
add regdomain debug msgs
2008-10-27 17:35:09 +00:00
Regdomain fixups: o pass country code, outdoor indication, and ecm mode into the hal when requesting a channel list o add a console msg when regulatory setup fails o add placeholder code to map between Atheros sku's and 802.11 sku's that handles only the debug country code used to unlock the full channel list (to be used only for debugging) o fix multiple instances of mismapping the 802.11 location to the outdoor indication (anywhere may be outdoor also)
2008-10-27 17:41:32 +00:00
error = getchannels(sc, &nchans, chans, cc,
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
rd->ecm ? AH_TRUE : AH_FALSE,
Regdomain fixups: o pass country code, outdoor indication, and ecm mode into the hal when requesting a channel list o add a console msg when regulatory setup fails o add placeholder code to map between Atheros sku's and 802.11 sku's that handles only the debug country code used to unlock the full channel list (to be used only for debugging) o fix multiple instances of mismapping the 802.11 location to the outdoor indication (anywhere may be outdoor also)
2008-10-27 17:41:32 +00:00
rd->location != 'I' ? AH_TRUE : AH_FALSE);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if (error != 0) {
/*
* Restore previous state.
*/
ath_hal_setregdomain(ah, ord);
(void) getchannels(sc, NULL, NULL, ic->ic_regdomain.country,
ic->ic_regdomain.ecm ? AH_TRUE : AH_FALSE,
Regdomain fixups: o pass country code, outdoor indication, and ecm mode into the hal when requesting a channel list o add a console msg when regulatory setup fails o add placeholder code to map between Atheros sku's and 802.11 sku's that handles only the debug country code used to unlock the full channel list (to be used only for debugging) o fix multiple instances of mismapping the 802.11 location to the outdoor indication (anywhere may be outdoor also)
2008-10-27 17:41:32 +00:00
ic->ic_regdomain.location != 'I' ? AH_TRUE : AH_FALSE);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
return error;
}
return 0;
}
static void
ath_getradiocaps(struct ieee80211com *ic,
int *nchans, struct ieee80211_channel chans[])
{
struct ath_softc *sc = ic->ic_ifp->if_softc;
struct ath_hal *ah = sc->sc_ah;
u_int32_t ord;
(void) ath_hal_getregdomain(ah, &ord);
add regdomain debug msgs
2008-10-27 17:35:09 +00:00
DPRINTF(sc, ATH_DEBUG_REGDOMAIN, "%s: use rd %u cc %d, ord %u\n",
__func__, 0, CTRY_DEBUG, ord);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ath_hal_setregdomain(ah, 0);
/* XXX not quite right but close enough for now */
getchannels(sc, nchans, chans, CTRY_DEBUG, AH_TRUE, AH_FALSE);
restore the hal's channel list when doing getradiocaps so it's in sync with the 802.11 layer's list
2008-04-27 22:03:56 +00:00
/* NB: restore previous state */
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ath_hal_setregdomain(ah, ord);
restore the hal's channel list when doing getradiocaps so it's in sync with the 802.11 layer's list
2008-04-27 22:03:56 +00:00
(void) getchannels(sc, NULL, NULL, ic->ic_regdomain.country,
ic->ic_regdomain.ecm ? AH_TRUE : AH_FALSE,
Regdomain fixups: o pass country code, outdoor indication, and ecm mode into the hal when requesting a channel list o add a console msg when regulatory setup fails o add placeholder code to map between Atheros sku's and 802.11 sku's that handles only the debug country code used to unlock the full channel list (to be used only for debugging) o fix multiple instances of mismapping the 802.11 location to the outdoor indication (anywhere may be outdoor also)
2008-10-27 17:41:32 +00:00
ic->ic_regdomain.location != 'I' ? AH_TRUE : AH_FALSE);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
}
Regdomain fixups: o pass country code, outdoor indication, and ecm mode into the hal when requesting a channel list o add a console msg when regulatory setup fails o add placeholder code to map between Atheros sku's and 802.11 sku's that handles only the debug country code used to unlock the full channel list (to be used only for debugging) o fix multiple instances of mismapping the 802.11 location to the outdoor indication (anywhere may be outdoor also)
2008-10-27 17:41:32 +00:00
static void
ath_mapsku(u_int32_t ath_rd, u_int32_t ath_cc, struct ieee80211_regdomain *rd)
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
{
Regdomain fixups: o pass country code, outdoor indication, and ecm mode into the hal when requesting a channel list o add a console msg when regulatory setup fails o add placeholder code to map between Atheros sku's and 802.11 sku's that handles only the debug country code used to unlock the full channel list (to be used only for debugging) o fix multiple instances of mismapping the 802.11 location to the outdoor indication (anywhere may be outdoor also)
2008-10-27 17:41:32 +00:00
rd->isocc[0] = ' '; /* XXX don't know */
rd->isocc[1] = ' ';
/* map Atheros sku's to SKU's */
switch (ath_rd) {
case 0:
if (ath_cc == CTRY_DEBUG) {
rd->regdomain = SKU_DEBUG;
rd->country = 0;
return;
}
break;
}
/* XXX net80211 types too small */
rd->regdomain = (uint16_t) ath_rd;
rd->country = (uint16_t) ath_cc;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
}
static int
ath_getchannels(struct ath_softc *sc)
{
struct ifnet *ifp = sc->sc_ifp;
struct ieee80211com *ic = ifp->if_l2com;
struct ath_hal *ah = sc->sc_ah;
int error;
/*
* Convert HAL channels to ieee80211 ones.
*/
error = getchannels(sc, &ic->ic_nchans, ic->ic_channels,
CTRY_DEFAULT, AH_TRUE, AH_FALSE);
add back sysctl's to display the regdomain and country code from eeprom; useful for debugging
2008-05-03 21:52:05 +00:00
(void) ath_hal_getregdomain(ah, &sc->sc_eerd);
ath_hal_getcountrycode(ah, &sc->sc_eecc); /* NB: cannot fail */
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if (error) {
if_printf(ifp, "%s: unable to collect channel list from hal, "
"error %d\n", __func__, error);
if (error == EINVAL) {
if_printf(ifp, "%s: regdomain likely %u country code %u\n",
add back sysctl's to display the regdomain and country code from eeprom; useful for debugging
2008-05-03 21:52:05 +00:00
__func__, sc->sc_eerd, sc->sc_eecc);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
}
return error;
}
ic->ic_regdomain.ecm = 1;
ic->ic_regdomain.location = 'I';
Regdomain fixups: o pass country code, outdoor indication, and ecm mode into the hal when requesting a channel list o add a console msg when regulatory setup fails o add placeholder code to map between Atheros sku's and 802.11 sku's that handles only the debug country code used to unlock the full channel list (to be used only for debugging) o fix multiple instances of mismapping the 802.11 location to the outdoor indication (anywhere may be outdoor also)
2008-10-27 17:41:32 +00:00
ath_mapsku(sc->sc_eerd, sc->sc_eecc, &ic->ic_regdomain);
add regdomain debug msgs
2008-10-27 17:35:09 +00:00
DPRINTF(sc, ATH_DEBUG_REGDOMAIN,
"%s: eeprom rd %u cc %u (mapped rd %u cc %u) location %c ecm %u\n",
__func__, sc->sc_eerd, sc->sc_eecc,
ic->ic_regdomain.regdomain, ic->ic_regdomain.country,
ic->ic_regdomain.location, ic->ic_regdomain.ecm);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
return 0;
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
static void
better led blinking
2005-01-18 19:03:04 +00:00
ath_led_done(void *arg)
Update with last year of work.
2004-12-08 17:34:36 +00:00
{
better led blinking
2005-01-18 19:03:04 +00:00
struct ath_softc *sc = arg;
Update with last year of work.
2004-12-08 17:34:36 +00:00
better led blinking
2005-01-18 19:03:04 +00:00
sc->sc_blinking = 0;
}
/*
* Turn the LED off: flip the pin and then set a timer so no
* update will happen for the specified duration.
*/
static void
ath_led_off(void *arg)
{
struct ath_softc *sc = arg;
ath_hal_gpioset(sc->sc_ah, sc->sc_ledpin, !sc->sc_ledon);
callout_reset(&sc->sc_ledtimer, sc->sc_ledoff, ath_led_done, sc);
}
/*
* Blink the LED according to the specified on/off times.
*/
static void
ath_led_blink(struct ath_softc *sc, int on, int off)
{
DPRINTF(sc, ATH_DEBUG_LED, "%s: on %u off %u\n", __func__, on, off);
ath_hal_gpioset(sc->sc_ah, sc->sc_ledpin, sc->sc_ledon);
sc->sc_blinking = 1;
sc->sc_ledoff = off;
callout_reset(&sc->sc_ledtimer, on, ath_led_off, sc);
}
static void
o With the addition of HT rates the set of h/w codes has a much wider range making the use of sc_hwmap to do direct mapping impractical. Switch to indexing by the rate index instead of the rate code and adjust associated state and logic appropriately. This has several benefits including simplification of the led code. o fix radiotap capture of HT rates o fix conditional compilation of HT radiotap support to be based on the hal having 5416 support; not the ABI version as hal builds may or may not include 5416 support
2008-10-27 18:22:44 +00:00
ath_led_event(struct ath_softc *sc, int rix)
better led blinking
2005-01-18 19:03:04 +00:00
{
sc->sc_ledevent = ticks; /* time of last event */
if (sc->sc_blinking) /* don't interrupt active blink */
return;
o With the addition of HT rates the set of h/w codes has a much wider range making the use of sc_hwmap to do direct mapping impractical. Switch to indexing by the rate index instead of the rate code and adjust associated state and logic appropriately. This has several benefits including simplification of the led code. o fix radiotap capture of HT rates o fix conditional compilation of HT radiotap support to be based on the hal having 5416 support; not the ABI version as hal builds may or may not include 5416 support
2008-10-27 18:22:44 +00:00
ath_led_blink(sc, sc->sc_hwmap[rix].ledon, sc->sc_hwmap[rix].ledoff);
Update with last year of work.
2004-12-08 17:34:36 +00:00
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
static int
ath_rate_setup(struct ath_softc *sc, u_int mode)
{
struct ath_hal *ah = sc->sc_ah;
const HAL_RATE_TABLE *rt;
switch (mode) {
case IEEE80211_MODE_11A:
cleanup rate setup MFC after: 2 weeks
2006-02-09 21:31:48 +00:00
rt = ath_hal_getratetable(ah, HAL_MODE_11A);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
break;
Add initial support for 900MHz cards like the Ubiquiti SR9: o eliminate assumptions that half/quarter rate channels on exist in 11a o handle frequency mapping between hal and net80211; hal gives us freq's in the range 2422..2437 that we remap MFC after: 1 month
2007-01-15 01:15:57 +00:00
case IEEE80211_MODE_HALF:
Add half/quarter rate 11a channel support: o change handling of regdomain-related mib knobs so they can be set post-attach: regdomain, countrycode, outdoor, and xchanmode; the hal will not permit changing the regdomain but we expose it for now o on regdomain/countrycode change recalculate the channel list and push it to the net80211 layer (NB: looks to need more tweaking) o setup rate tables for half/quarter rate channels o honor half/quarter rate channel configs when changing channels o honor half/quarter rate channel configs when setting the slot time o use hack/nonstandard channel numbering scheme for the public safety band to avoid overlapping 2.4G channels on dual-band cards o remove setup of ic_sup_rates; the net80211 layer can do this for us and it simplifies handling of half/quarter rate channels Tested only in Public Safety Band with cards that have RF5112.
2006-12-27 19:07:09 +00:00
rt = ath_hal_getratetable(ah, HAL_MODE_11A_HALF_RATE);
break;
Add initial support for 900MHz cards like the Ubiquiti SR9: o eliminate assumptions that half/quarter rate channels on exist in 11a o handle frequency mapping between hal and net80211; hal gives us freq's in the range 2422..2437 that we remap MFC after: 1 month
2007-01-15 01:15:57 +00:00
case IEEE80211_MODE_QUARTER:
Add half/quarter rate 11a channel support: o change handling of regdomain-related mib knobs so they can be set post-attach: regdomain, countrycode, outdoor, and xchanmode; the hal will not permit changing the regdomain but we expose it for now o on regdomain/countrycode change recalculate the channel list and push it to the net80211 layer (NB: looks to need more tweaking) o setup rate tables for half/quarter rate channels o honor half/quarter rate channel configs when changing channels o honor half/quarter rate channel configs when setting the slot time o use hack/nonstandard channel numbering scheme for the public safety band to avoid overlapping 2.4G channels on dual-band cards o remove setup of ic_sup_rates; the net80211 layer can do this for us and it simplifies handling of half/quarter rate channels Tested only in Public Safety Band with cards that have RF5112.
2006-12-27 19:07:09 +00:00
rt = ath_hal_getratetable(ah, HAL_MODE_11A_QUARTER_RATE);
break;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
case IEEE80211_MODE_11B:
cleanup rate setup MFC after: 2 weeks
2006-02-09 21:31:48 +00:00
rt = ath_hal_getratetable(ah, HAL_MODE_11B);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
break;
case IEEE80211_MODE_11G:
cleanup rate setup MFC after: 2 weeks
2006-02-09 21:31:48 +00:00
rt = ath_hal_getratetable(ah, HAL_MODE_11G);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
break;
Update with last year of work.
2004-12-08 17:34:36 +00:00
case IEEE80211_MODE_TURBO_A:
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
rt = ath_hal_getratetable(ah, HAL_MODE_108A);
bandaid Dynamic Turbo A operation with old hal's: HAL_MODE_108A does not have a rate table in older hal's so if we scan such a channel the driver will hit an assertion or crash; for old hal's fallback to using the static turbo rate table for this mode (not correct but good enough for now given none of the rate control algorithms understand how to switch between base+boost) Approved by: re (blanket wireless)
2007-09-17 05:16:38 +00:00
#if HAL_ABI_VERSION < 0x07013100
if (rt == NULL) /* XXX bandaid for old hal's */
rt = ath_hal_getratetable(ah, HAL_MODE_TURBO);
#endif
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
break;
Update with last year of work.
2004-12-08 17:34:36 +00:00
case IEEE80211_MODE_TURBO_G:
cleanup rate setup MFC after: 2 weeks
2006-02-09 21:31:48 +00:00
rt = ath_hal_getratetable(ah, HAL_MODE_108G);
Update with last year of work.
2004-12-08 17:34:36 +00:00
break;
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
case IEEE80211_MODE_STURBO_A:
rt = ath_hal_getratetable(ah, HAL_MODE_TURBO);
break;
case IEEE80211_MODE_11NA:
rt = ath_hal_getratetable(ah, HAL_MODE_11NA_HT20);
break;
case IEEE80211_MODE_11NG:
rt = ath_hal_getratetable(ah, HAL_MODE_11NG_HT20);
break;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
default:
Update with last year of work.
2004-12-08 17:34:36 +00:00
DPRINTF(sc, ATH_DEBUG_ANY, "%s: invalid mode %u\n",
__func__, mode);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
return 0;
}
cleanup rate setup MFC after: 2 weeks
2006-02-09 21:31:48 +00:00
sc->sc_rates[mode] = rt;
Add half/quarter rate 11a channel support: o change handling of regdomain-related mib knobs so they can be set post-attach: regdomain, countrycode, outdoor, and xchanmode; the hal will not permit changing the regdomain but we expose it for now o on regdomain/countrycode change recalculate the channel list and push it to the net80211 layer (NB: looks to need more tweaking) o setup rate tables for half/quarter rate channels o honor half/quarter rate channel configs when changing channels o honor half/quarter rate channel configs when setting the slot time o use hack/nonstandard channel numbering scheme for the public safety band to avoid overlapping 2.4G channels on dual-band cards o remove setup of ic_sup_rates; the net80211 layer can do this for us and it simplifies handling of half/quarter rate channels Tested only in Public Safety Band with cards that have RF5112.
2006-12-27 19:07:09 +00:00
return (rt != NULL);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
static void
ath_setcurmode(struct ath_softc *sc, enum ieee80211_phymode mode)
{
better led blinking
2005-01-18 19:03:04 +00:00
#define N(a) (sizeof(a)/sizeof(a[0]))
/* NB: on/off times from the Atheros NDIS driver, w/ permission */
static const struct {
u_int rate; /* tx/rx 802.11 rate */
u_int16_t timeOn; /* LED on time (ms) */
u_int16_t timeOff; /* LED off time (ms) */
} blinkrates[] = {
{ 108, 40, 10 },
{ 96, 44, 11 },
{ 72, 50, 13 },
{ 48, 57, 14 },
{ 36, 67, 16 },
{ 24, 80, 20 },
{ 22, 100, 25 },
{ 18, 133, 34 },
{ 12, 160, 40 },
{ 10, 200, 50 },
{ 6, 240, 58 },
{ 4, 267, 66 },
{ 2, 400, 100 },
{ 0, 500, 130 },
Add initial support for 900MHz cards like the Ubiquiti SR9: o eliminate assumptions that half/quarter rate channels on exist in 11a o handle frequency mapping between hal and net80211; hal gives us freq's in the range 2422..2437 that we remap MFC after: 1 month
2007-01-15 01:15:57 +00:00
/* XXX half/quarter rates */
better led blinking
2005-01-18 19:03:04 +00:00
};
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
const HAL_RATE_TABLE *rt;
better led blinking
2005-01-18 19:03:04 +00:00
int i, j;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
memset(sc->sc_rixmap, 0xff, sizeof(sc->sc_rixmap));
rt = sc->sc_rates[mode];
KASSERT(rt != NULL, ("no h/w rate set for phy mode %u", mode));
fix handling of HT rates; these overlap legacy rates and need to be marked as MCS in the inverse mapping table
2008-10-27 18:02:47 +00:00
for (i = 0; i < rt->rateCount; i++) {
uint8_t ieeerate = rt->info[i].dot11Rate & IEEE80211_RATE_VAL;
if (rt->info[i].phy != IEEE80211_T_HT)
sc->sc_rixmap[ieeerate] = i;
else
sc->sc_rixmap[ieeerate | IEEE80211_RATE_MCS] = i;
}
maintain a table for mapping hardware rate codes to 802.11 rates for calculating the rate for each rx'd frame
2003-08-19 21:24:16 +00:00
memset(sc->sc_hwmap, 0, sizeof(sc->sc_hwmap));
o With the addition of HT rates the set of h/w codes has a much wider range making the use of sc_hwmap to do direct mapping impractical. Switch to indexing by the rate index instead of the rate code and adjust associated state and logic appropriately. This has several benefits including simplification of the led code. o fix radiotap capture of HT rates o fix conditional compilation of HT radiotap support to be based on the hal having 5416 support; not the ABI version as hal builds may or may not include 5416 support
2008-10-27 18:22:44 +00:00
for (i = 0; i < N(sc->sc_hwmap); i++) {
if (i >= rt->rateCount) {
better led blinking
2005-01-18 19:03:04 +00:00
sc->sc_hwmap[i].ledon = (500 * hz) / 1000;
sc->sc_hwmap[i].ledoff = (130 * hz) / 1000;
Radiotap fixups: o catch one place where we were not using ath_chan_change to switch channels; this fixes a problem where the channel settings were not being correctly reported in captured packets o return unique channel identification in the channel flags; ethereal gets confused if you return merged flags (e.g. ofdm, cck, and 2Ghz) (this is workaround and should be removed if we can ever cleanup radiotap consumers) o correct short/long preamble flag state for rx and treat tx the same--use a new hwflags array that gives us the data based on the h/w rate index/cookie o add gross hack to handle radiotap capture of frames that come in with hardware padding; should be replaced by a flag in the radiotap header and more smarts in the apps that decode radiotap data
2004-12-31 20:32:40 +00:00
continue;
better led blinking
2005-01-18 19:03:04 +00:00
}
sc->sc_hwmap[i].ieeerate =
o With the addition of HT rates the set of h/w codes has a much wider range making the use of sc_hwmap to do direct mapping impractical. Switch to indexing by the rate index instead of the rate code and adjust associated state and logic appropriately. This has several benefits including simplification of the led code. o fix radiotap capture of HT rates o fix conditional compilation of HT radiotap support to be based on the hal having 5416 support; not the ABI version as hal builds may or may not include 5416 support
2008-10-27 18:22:44 +00:00
rt->info[i].dot11Rate & IEEE80211_RATE_VAL;
if (rt->info[i].phy == IEEE80211_T_HT)
prefer #define to naked constant
2008-10-27 18:05:26 +00:00
sc->sc_hwmap[i].ieeerate |= IEEE80211_RATE_MCS;
Fixup radiotap handling of FCS and QoS frames per discussion with David Young: o mark rx frames including FCS in the payload with the IEEE80211_RADIOTAP_F_FCS flag o remove hack to copy 802.11 headers with padding out of line; instead mark the frames with IEEE80211_RADIOTAP_F_DATAPAD and require applications to do the work o split precalculated radiotap flags into tx+rx now that they can be different Note the full usefulness of these changes depends on updates to applications that process radiotap data.
2005-01-24 20:31:24 +00:00
sc->sc_hwmap[i].txflags = IEEE80211_RADIOTAP_F_DATAPAD;
o With the addition of HT rates the set of h/w codes has a much wider range making the use of sc_hwmap to do direct mapping impractical. Switch to indexing by the rate index instead of the rate code and adjust associated state and logic appropriately. This has several benefits including simplification of the led code. o fix radiotap capture of HT rates o fix conditional compilation of HT radiotap support to be based on the hal having 5416 support; not the ABI version as hal builds may or may not include 5416 support
2008-10-27 18:22:44 +00:00
if (rt->info[i].shortPreamble ||
rt->info[i].phy == IEEE80211_T_OFDM)
Fixup radiotap handling of FCS and QoS frames per discussion with David Young: o mark rx frames including FCS in the payload with the IEEE80211_RADIOTAP_F_FCS flag o remove hack to copy 802.11 headers with padding out of line; instead mark the frames with IEEE80211_RADIOTAP_F_DATAPAD and require applications to do the work o split precalculated radiotap flags into tx+rx now that they can be different Note the full usefulness of these changes depends on updates to applications that process radiotap data.
2005-01-24 20:31:24 +00:00
sc->sc_hwmap[i].txflags |= IEEE80211_RADIOTAP_F_SHORTPRE;
/* NB: receive frames include FCS */
sc->sc_hwmap[i].rxflags = sc->sc_hwmap[i].txflags |
IEEE80211_RADIOTAP_F_FCS;
better led blinking
2005-01-18 19:03:04 +00:00
/* setup blink rate table to avoid per-packet lookup */
for (j = 0; j < N(blinkrates)-1; j++)
if (blinkrates[j].rate == sc->sc_hwmap[i].ieeerate)
break;
/* NB: this uses the last entry if the rate isn't found */
/* XXX beware of overlow */
sc->sc_hwmap[i].ledon = (blinkrates[j].timeOn * hz) / 1000;
sc->sc_hwmap[i].ledoff = (blinkrates[j].timeOff * hz) / 1000;
Update with last year of work.
2004-12-08 17:34:36 +00:00
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
sc->sc_currates = rt;
sc->sc_curmode = mode;
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* All protection frames are transmited at 2Mb/s for
* 11g, otherwise at 1Mb/s.
*/
lookup the protection tx rate index in the rate tables instead of using a known value MFC after: 2 weeks
2006-02-09 21:17:28 +00:00
if (mode == IEEE80211_MODE_11G)
sc->sc_protrix = ath_tx_findrix(rt, 2*2);
else
sc->sc_protrix = ath_tx_findrix(rt, 2*1);
Update with last year of work.
2004-12-08 17:34:36 +00:00
/* NB: caller is responsible for reseting rate control state */
better led blinking
2005-01-18 19:03:04 +00:00
#undef N
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
o add opt_ath.h enable tweaking various config parameters for the driver without modifying the source code o default debug msgs and diag support to off MFC after: 3 days
2006-04-03 18:14:02 +00:00
#ifdef ATH_DEBUG
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
static void
print the extended tx/rx descriptor for 5416 and later parts
2008-11-24 01:34:56 +00:00
ath_printrxbuf(struct ath_softc *sc, const struct ath_buf *bf,
u_int ix, int done)
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
{
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
const struct ath_rx_status *rs = &bf->bf_status.ds_rxstat;
print the extended tx/rx descriptor for 5416 and later parts
2008-11-24 01:34:56 +00:00
struct ath_hal *ah = sc->sc_ah;
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
const struct ath_desc *ds;
Update with last year of work.
2004-12-08 17:34:36 +00:00
int i;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
for (i = 0, ds = bf->bf_desc; i < bf->bf_nseg; i++, ds++) {
improve tx/rx buf printing routines MFC after: 2 weeks
2006-02-15 18:31:04 +00:00
printf("R[%2u] (DS.V:%p DS.P:%p) L:%08x D:%08x%s\n"
" %08x %08x %08x %08x\n",
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
ix, ds, (const struct ath_desc *)bf->bf_daddr + i,
Update with last year of work.
2004-12-08 17:34:36 +00:00
ds->ds_link, ds->ds_data,
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
!done ? "" : (rs->rs_status == 0) ? " *" : " !",
Update with last year of work.
2004-12-08 17:34:36 +00:00
ds->ds_ctl0, ds->ds_ctl1,
improve tx/rx buf printing routines MFC after: 2 weeks
2006-02-15 18:31:04 +00:00
ds->ds_hw[0], ds->ds_hw[1]);
print the extended tx/rx descriptor for 5416 and later parts
2008-11-24 01:34:56 +00:00
if (ah->ah_magic == 0x20065416) {
printf(" %08x %08x %08x %08x %08x %08x %08x\n",
ds->ds_hw[2], ds->ds_hw[3], ds->ds_hw[4],
ds->ds_hw[5], ds->ds_hw[6], ds->ds_hw[7],
ds->ds_hw[8]);
}
MFp4: change ath_rate_ctl_reset to handle transition from station mode to adhoc mode; was not resetting the initial xmit rate causing outbound frames to be dicarded
2003-10-13 03:37:38 +00:00
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
static void
print the extended tx/rx descriptor for 5416 and later parts
2008-11-24 01:34:56 +00:00
ath_printtxbuf(struct ath_softc *sc, const struct ath_buf *bf,
u_int qnum, u_int ix, int done)
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
{
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
const struct ath_tx_status *ts = &bf->bf_status.ds_txstat;
print the extended tx/rx descriptor for 5416 and later parts
2008-11-24 01:34:56 +00:00
struct ath_hal *ah = sc->sc_ah;
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
const struct ath_desc *ds;
Update with last year of work.
2004-12-08 17:34:36 +00:00
int i;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
improve tx/rx buf printing routines MFC after: 2 weeks
2006-02-15 18:31:04 +00:00
printf("Q%u[%3u]", qnum, ix);
Update with last year of work.
2004-12-08 17:34:36 +00:00
for (i = 0, ds = bf->bf_desc; i < bf->bf_nseg; i++, ds++) {
backout 1.136 until we can resolve report that it causes output to stall
2006-02-27 17:20:23 +00:00
printf(" (DS.V:%p DS.P:%p) L:%08x D:%08x F:04%x%s\n"
improve tx/rx buf printing routines MFC after: 2 weeks
2006-02-15 18:31:04 +00:00
" %08x %08x %08x %08x %08x %08x\n",
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
ds, (const struct ath_desc *)bf->bf_daddr + i,
rename bf_flags to bf_txflags in preparation for the addition of flags separate from the tx descriptor flags currently recorded
2008-10-27 17:16:46 +00:00
ds->ds_link, ds->ds_data, bf->bf_txflags,
Track v0.9.20.3 hal: o no more ds_vdata in tx/rx descriptors o split h/w tx/rx descriptor from s/w status o as part of the descriptor split change the rate control module api so the ath_buf is passed in to the module so it can fetch both descriptor and status information as needed o add some const poisoning Also for sample rate control algorithm: o split debug msgs (node, rate, any) o uniformly bounds check rate indices (and in some cases correct checks) o move array index ops to after bounds checking o use final tsi from the status block instead of the h/w descriptor o replace h/w descriptor struct's with proper mask+shift defs (this doesn't belong here; everything is known by the driver and should just be sent down so there's no h/w-specific knowledge) MFC after: 1 month
2006-12-13 19:34:35 +00:00
!done ? "" : (ts->ts_status == 0) ? " *" : " !",
Update with last year of work.
2004-12-08 17:34:36 +00:00
ds->ds_ctl0, ds->ds_ctl1,
improve tx/rx buf printing routines MFC after: 2 weeks
2006-02-15 18:31:04 +00:00
ds->ds_hw[0], ds->ds_hw[1], ds->ds_hw[2], ds->ds_hw[3]);
print the extended tx/rx descriptor for 5416 and later parts
2008-11-24 01:34:56 +00:00
if (ah->ah_magic == 0x20065416) {
printf(" %08x %08x %08x %08x %08x %08x %08x %08x\n",
ds->ds_hw[4], ds->ds_hw[5], ds->ds_hw[6],
ds->ds_hw[7], ds->ds_hw[8], ds->ds_hw[9],
ds->ds_hw[10],ds->ds_hw[11]);
printf(" %08x %08x %08x %08x %08x %08x %08x %08x\n",
ds->ds_hw[12],ds->ds_hw[13],ds->ds_hw[14],
ds->ds_hw[15],ds->ds_hw[16],ds->ds_hw[17],
ds->ds_hw[18], ds->ds_hw[19]);
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
}
}
o add opt_ath.h enable tweaking various config parameters for the driver without modifying the source code o default debug msgs and diag support to off MFC after: 3 days
2006-04-03 18:14:02 +00:00
#endif /* ATH_DEBUG */
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
static void
ath_watchdog(struct ifnet *ifp)
{
struct ath_softc *sc = ifp->if_softc;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
if ((ifp->if_drv_flags & IFF_DRV_RUNNING) && !sc->sc_invalid) {
some of the 11n parts can hang under certain conditions without necessary workarounds, add code to detect these hangs and distinguish them from other events; note this code is only invoked for anomalous conditions and (at the moment) is a noop because the hang detection code is in a new hal that's coming shortly
2008-11-30 18:34:27 +00:00
uint32_t hangs;
if (ath_hal_gethangstate(sc->sc_ah, 0xffff, &hangs) &&
hangs != 0) {
if_printf(ifp, "%s hang detected (0x%x)\n",
hangs & 0xff ? "bb" : "mac", hangs);
} else
if_printf(ifp, "device timeout\n");
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
ath_reset(ifp);
ifp->if_oerrors++;
sc->sc_stats.ast_watchdog++;
Update with last year of work.
2004-12-08 17:34:36 +00:00
}
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
o add opt_ath.h enable tweaking various config parameters for the driver without modifying the source code o default debug msgs and diag support to off MFC after: 3 days
2006-04-03 18:14:02 +00:00
#ifdef ATH_DIAGAPI
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* Diagnostic interface to the HAL. This is used by various
* tools to do things like retrieve register contents for
* debugging. The mechanism is intentionally opaque so that
* it can change frequently w/o concern for compatiblity.
*/
static int
ath_ioctl_diag(struct ath_softc *sc, struct ath_diag *ad)
{
struct ath_hal *ah = sc->sc_ah;
u_int id = ad->ad_id & ATH_DIAG_ID;
void *indata = NULL;
void *outdata = NULL;
u_int32_t insize = ad->ad_in_size;
u_int32_t outsize = ad->ad_out_size;
int error = 0;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (ad->ad_id & ATH_DIAG_IN) {
/*
* Copy in data.
*/
indata = malloc(insize, M_TEMP, M_NOWAIT);
if (indata == NULL) {
error = ENOMEM;
goto bad;
}
error = copyin(ad->ad_in_data, indata, insize);
if (error)
goto bad;
}
if (ad->ad_id & ATH_DIAG_DYN) {
/*
* Allocate a buffer for the results (otherwise the HAL
* returns a pointer to a buffer where we can read the
* results). Note that we depend on the HAL leaving this
* pointer for us to use below in reclaiming the buffer;
* may want to be more defensive.
*/
outdata = malloc(outsize, M_TEMP, M_NOWAIT);
if (outdata == NULL) {
error = ENOMEM;
goto bad;
}
}
if (ath_hal_getdiagstate(ah, id, indata, insize, &outdata, &outsize)) {
if (outsize < ad->ad_out_size)
ad->ad_out_size = outsize;
if (outdata != NULL)
error = copyout(outdata, ad->ad_out_data,
ad->ad_out_size);
} else {
error = EINVAL;
}
bad:
if ((ad->ad_id & ATH_DIAG_IN) && indata != NULL)
free(indata, M_TEMP);
if ((ad->ad_id & ATH_DIAG_DYN) && outdata != NULL)
free(outdata, M_TEMP);
return error;
}
o add opt_ath.h enable tweaking various config parameters for the driver without modifying the source code o default debug msgs and diag support to off MFC after: 3 days
2006-04-03 18:14:02 +00:00
#endif /* ATH_DIAGAPI */
Update with last year of work.
2004-12-08 17:34:36 +00:00
static int
ath_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
{
#define IS_RUNNING(ifp) \
Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and IFF_DRV_RUNNING, as well as the move from ifnet.if_flags to ifnet.if_drv_flags. Device drivers are now responsible for synchronizing access to these flags, as they are in if_drv_flags. This helps prevent races between the network stack and device driver in maintaining the interface flags field. Many __FreeBSD__ and __FreeBSD_version checks maintained and continued; some less so. Reviewed by: pjd, bz MFC after: 7 days
2005-08-09 10:20:02 +00:00
((ifp->if_flags & IFF_UP) && (ifp->if_drv_flags & IFF_DRV_RUNNING))
Update with last year of work.
2004-12-08 17:34:36 +00:00
struct ath_softc *sc = ifp->if_softc;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
struct ieee80211com *ic = ifp->if_l2com;
Update with last year of work.
2004-12-08 17:34:36 +00:00
struct ifreq *ifr = (struct ifreq *)data;
Fixup statistics: o update tx rssi data only when an ACK was received o return tx rssi from sampled data instead of the last frame o track noise floor o return rx rssi and noise floor (was broken)
2008-10-27 17:51:24 +00:00
const HAL_RATE_TABLE *rt;
Update with last year of work.
2004-12-08 17:34:36 +00:00
int error = 0;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
switch (cmd) {
case SIOCSIFFLAGS:
Unify all the wifi *_ioctl routines - Limit grabbing the lock to SIOCSIFFLAGS. - Move ieee80211_start_all() to SIOCSIFFLAGS. - Remove SIOCSIFMEDIA as it is not useful. - Limit ether_ioctl to only SIOCGIFADDR. SIOCSIFADDR and SIOCSIFMTU have no affect as there is no input/output path in the vap parent. The vap code will handle the reinit of the mac address changes. - Split off ndis_ioctl_80211 as it was getting too different to wired devices. This fixes a copyout while locked and a lock recursion. Reviewed by: sam
2008-05-01 04:55:00 +00:00
ATH_LOCK(sc);
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (IS_RUNNING(ifp)) {
/*
* To avoid rescanning another access point,
* do not call ath_init() here. Instead,
* only reflect promisc mode settings.
*/
ath_mode_init(sc);
} else if (ifp->if_flags & IFF_UP) {
/*
* Beware of being called during attach/detach
* to reset promiscuous mode. In that case we
* will still be marked UP but not RUNNING.
* However trying to re-init the interface
* is the wrong thing to do as we've already
* torn down much of our state. There's
* probably a better way to deal with this.
*/
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if (!sc->sc_invalid)
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
ath_init(sc); /* XXX lose error */
Cleanup power handling and fix suspend/resume: o do not put the chip into full sleep in ath_stop as it gains nothing and causes many parts to hang in ath_detach because we may touch the chip during vap teardown; this may also fix issues with unloading the module o add a note in ath_detach to explain ath_hal_detach puts the chip in low power mode; this is useful to know as it means unloading the module will place a pci device in the lowest possible power state o leave an #ifdef notyet marker for powering down the chip when a device is marked down; we can't do that until we handle all the ways the driver may be entered and touch the chip o fix resume by reloading the h/w key cache as it's been clobbered (for pci) by the socket being powered off; for station mode we directly stop+init the chip and then simulate a beacon miss to get the upper layers sync'd up; for other configs we must brute force stop+start the vaps so they go through the state machine
2008-05-29 00:10:48 +00:00
} else {
Update with last year of work.
2004-12-08 17:34:36 +00:00
ath_stop_locked(ifp);
Cleanup power handling and fix suspend/resume: o do not put the chip into full sleep in ath_stop as it gains nothing and causes many parts to hang in ath_detach because we may touch the chip during vap teardown; this may also fix issues with unloading the module o add a note in ath_detach to explain ath_hal_detach puts the chip in low power mode; this is useful to know as it means unloading the module will place a pci device in the lowest possible power state o leave an #ifdef notyet marker for powering down the chip when a device is marked down; we can't do that until we handle all the ways the driver may be entered and touch the chip o fix resume by reloading the h/w key cache as it's been clobbered (for pci) by the socket being powered off; for station mode we directly stop+init the chip and then simulate a beacon miss to get the upper layers sync'd up; for other configs we must brute force stop+start the vaps so they go through the state machine
2008-05-29 00:10:48 +00:00
#ifdef notyet
/* XXX must wakeup in places like ath_vap_delete */
if (!sc->sc_invalid)
ath_hal_setpower(sc->sc_ah, HAL_PM_FULL_SLEEP);
#endif
}
Unify all the wifi *_ioctl routines - Limit grabbing the lock to SIOCSIFFLAGS. - Move ieee80211_start_all() to SIOCSIFFLAGS. - Remove SIOCSIFMEDIA as it is not useful. - Limit ether_ioctl to only SIOCGIFADDR. SIOCSIFADDR and SIOCSIFMTU have no affect as there is no input/output path in the vap parent. The vap code will handle the reinit of the mac address changes. - Split off ndis_ioctl_80211 as it was getting too different to wired devices. This fixes a copyout while locked and a lock recursion. Reviewed by: sam
2008-05-01 04:55:00 +00:00
ATH_UNLOCK(sc);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
break;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
case SIOCGIFMEDIA:
case SIOCSIFMEDIA:
error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
break;
Update with last year of work.
2004-12-08 17:34:36 +00:00
case SIOCGATHSTATS:
/* NB: embed these numbers to get a consistent view */
sc->sc_stats.ast_tx_packets = ifp->if_opackets;
sc->sc_stats.ast_rx_packets = ifp->if_ipackets;
Fixup statistics: o update tx rssi data only when an ACK was received o return tx rssi from sampled data instead of the last frame o track noise floor o return rx rssi and noise floor (was broken)
2008-10-27 17:51:24 +00:00
sc->sc_stats.ast_tx_rssi = ATH_RSSI(sc->sc_halstats.ns_avgtxrssi);
sc->sc_stats.ast_rx_rssi = ATH_RSSI(sc->sc_halstats.ns_avgrssi);
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
#ifdef ATH_SUPPORT_TDMA
sc->sc_stats.ast_tdma_tsfadjp = TDMA_AVG(sc->sc_avgtsfdeltap);
sc->sc_stats.ast_tdma_tsfadjm = TDMA_AVG(sc->sc_avgtsfdeltam);
#endif
Fixup statistics: o update tx rssi data only when an ACK was received o return tx rssi from sampled data instead of the last frame o track noise floor o return rx rssi and noise floor (was broken)
2008-10-27 17:51:24 +00:00
rt = sc->sc_currates;
o With the addition of HT rates the set of h/w codes has a much wider range making the use of sc_hwmap to do direct mapping impractical. Switch to indexing by the rate index instead of the rate code and adjust associated state and logic appropriately. This has several benefits including simplification of the led code. o fix radiotap capture of HT rates o fix conditional compilation of HT radiotap support to be based on the hal having 5416 support; not the ABI version as hal builds may or may not include 5416 support
2008-10-27 18:22:44 +00:00
/* XXX HT rates */
sc->sc_stats.ast_tx_rate =
rt->info[sc->sc_txrix].dot11Rate &~ IEEE80211_RATE_BASIC;
Update with last year of work.
2004-12-08 17:34:36 +00:00
return copyout(&sc->sc_stats,
Unify all the wifi *_ioctl routines - Limit grabbing the lock to SIOCSIFFLAGS. - Move ieee80211_start_all() to SIOCSIFFLAGS. - Remove SIOCSIFMEDIA as it is not useful. - Limit ether_ioctl to only SIOCGIFADDR. SIOCSIFADDR and SIOCSIFMTU have no affect as there is no input/output path in the vap parent. The vap code will handle the reinit of the mac address changes. - Split off ndis_ioctl_80211 as it was getting too different to wired devices. This fixes a copyout while locked and a lock recursion. Reviewed by: sam
2008-05-01 04:55:00 +00:00
ifr->ifr_data, sizeof (sc->sc_stats));
o add opt_ath.h enable tweaking various config parameters for the driver without modifying the source code o default debug msgs and diag support to off MFC after: 3 days
2006-04-03 18:14:02 +00:00
#ifdef ATH_DIAGAPI
Update with last year of work.
2004-12-08 17:34:36 +00:00
case SIOCGATHDIAG:
error = ath_ioctl_diag(sc, (struct ath_diag *) ifr);
break;
o add opt_ath.h enable tweaking various config parameters for the driver without modifying the source code o default debug msgs and diag support to off MFC after: 3 days
2006-04-03 18:14:02 +00:00
#endif
Unify all the wifi *_ioctl routines - Limit grabbing the lock to SIOCSIFFLAGS. - Move ieee80211_start_all() to SIOCSIFFLAGS. - Remove SIOCSIFMEDIA as it is not useful. - Limit ether_ioctl to only SIOCGIFADDR. SIOCSIFADDR and SIOCSIFMTU have no affect as there is no input/output path in the vap parent. The vap code will handle the reinit of the mac address changes. - Split off ndis_ioctl_80211 as it was getting too different to wired devices. This fixes a copyout while locked and a lock recursion. Reviewed by: sam
2008-05-01 04:55:00 +00:00
case SIOCGIFADDR:
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
error = ether_ioctl(ifp, cmd, data);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
break;
Unify all the wifi *_ioctl routines - Limit grabbing the lock to SIOCSIFFLAGS. - Move ieee80211_start_all() to SIOCSIFFLAGS. - Remove SIOCSIFMEDIA as it is not useful. - Limit ether_ioctl to only SIOCGIFADDR. SIOCSIFADDR and SIOCSIFMTU have no affect as there is no input/output path in the vap parent. The vap code will handle the reinit of the mac address changes. - Split off ndis_ioctl_80211 as it was getting too different to wired devices. This fixes a copyout while locked and a lock recursion. Reviewed by: sam
2008-05-01 04:55:00 +00:00
default:
error = EINVAL;
break;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
return error;
correct some typos Submitted by: Tai-hwa Liang
2004-12-31 20:35:05 +00:00
#undef IS_RUNNING
Update with last year of work.
2004-12-08 17:34:36 +00:00
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
static int
ath_sysctl_slottime(SYSCTL_HANDLER_ARGS)
{
struct ath_softc *sc = arg1;
u_int slottime = ath_hal_getslottime(sc->sc_ah);
int error;
error = sysctl_handle_int(oidp, &slottime, 0, req);
if (error || !req->newptr)
return error;
return !ath_hal_setslottime(sc->sc_ah, slottime) ? EINVAL : 0;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
static int
Update with last year of work.
2004-12-08 17:34:36 +00:00
ath_sysctl_acktimeout(SYSCTL_HANDLER_ARGS)
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
{
Update with last year of work.
2004-12-08 17:34:36 +00:00
struct ath_softc *sc = arg1;
u_int acktimeout = ath_hal_getacktimeout(sc->sc_ah);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
int error;
Update with last year of work.
2004-12-08 17:34:36 +00:00
error = sysctl_handle_int(oidp, &acktimeout, 0, req);
if (error || !req->newptr)
return error;
return !ath_hal_setacktimeout(sc->sc_ah, acktimeout) ? EINVAL : 0;
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
static int
ath_sysctl_ctstimeout(SYSCTL_HANDLER_ARGS)
{
struct ath_softc *sc = arg1;
u_int ctstimeout = ath_hal_getctstimeout(sc->sc_ah);
int error;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
error = sysctl_handle_int(oidp, &ctstimeout, 0, req);
if (error || !req->newptr)
return error;
return !ath_hal_setctstimeout(sc->sc_ah, ctstimeout) ? EINVAL : 0;
}
static int
ath_sysctl_softled(SYSCTL_HANDLER_ARGS)
{
struct ath_softc *sc = arg1;
int softled = sc->sc_softled;
int error;
error = sysctl_handle_int(oidp, &softled, 0, req);
if (error || !req->newptr)
return error;
better led blinking
2005-01-18 19:03:04 +00:00
softled = (softled != 0);
Update with last year of work.
2004-12-08 17:34:36 +00:00
if (softled != sc->sc_softled) {
better led blinking
2005-01-18 19:03:04 +00:00
if (softled) {
/* NB: handle any sc_ledpin change */
Update with last year of work.
2004-12-08 17:34:36 +00:00
ath_hal_gpioCfgOutput(sc->sc_ah, sc->sc_ledpin);
better led blinking
2005-01-18 19:03:04 +00:00
ath_hal_gpioset(sc->sc_ah, sc->sc_ledpin,
!sc->sc_ledon);
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
sc->sc_softled = softled;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
return 0;
}
make dev.ath.N.ledpin have an immediate effect PR: kern/111810 Submitted by: Henrik Brix Andersen <henrik@brixandersen.dk> MFC after: 1 week
2007-04-23 05:57:06 +00:00
static int
ath_sysctl_ledpin(SYSCTL_HANDLER_ARGS)
{
struct ath_softc *sc = arg1;
int ledpin = sc->sc_ledpin;
int error;
error = sysctl_handle_int(oidp, &ledpin, 0, req);
if (error || !req->newptr)
return error;
if (ledpin != sc->sc_ledpin) {
sc->sc_ledpin = ledpin;
if (sc->sc_softled) {
ath_hal_gpioCfgOutput(sc->sc_ah, sc->sc_ledpin);
ath_hal_gpioset(sc->sc_ah, sc->sc_ledpin,
!sc->sc_ledon);
}
}
return 0;
}
set the antenna switch when fixing the tx antenna using the dev.ath.X.txantenna sysctl; this is typically what folks want but beware this has the side effect of disabling rx diversity MFC after: 2 weeks
2007-02-24 23:12:58 +00:00
static int
ath_sysctl_txantenna(SYSCTL_HANDLER_ARGS)
{
struct ath_softc *sc = arg1;
u_int txantenna = ath_hal_getantennaswitch(sc->sc_ah);
int error;
error = sysctl_handle_int(oidp, &txantenna, 0, req);
if (!error && req->newptr) {
/* XXX assumes 2 antenna ports */
if (txantenna < HAL_ANT_VARIABLE || txantenna > HAL_ANT_FIXED_B)
return EINVAL;
ath_hal_setantennaswitch(sc->sc_ah, txantenna);
/*
* NB: with the switch locked this isn't meaningful,
* but set it anyway so things like radiotap get
* consistent info in their data.
*/
sc->sc_txantenna = txantenna;
}
return error;
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
static int
ath_sysctl_rxantenna(SYSCTL_HANDLER_ARGS)
{
struct ath_softc *sc = arg1;
u_int defantenna = ath_hal_getdefantenna(sc->sc_ah);
int error;
error = sysctl_handle_int(oidp, &defantenna, 0, req);
if (!error && req->newptr)
ath_hal_setdefantenna(sc->sc_ah, defantenna);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
return error;
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
static int
ath_sysctl_diversity(SYSCTL_HANDLER_ARGS)
{
struct ath_softc *sc = arg1;
o fix setup of sc_diversity; the hal does not give us reliable status after attach, only after a reset o when setting diversity via the sysctl don't update sc_diversity until we know the hal requested worked o while here eliminate sc_hasdiversity and sc_hastpc; just query the hal each time since these are the only places we need to know MFC after: 3 days
2005-07-24 05:11:39 +00:00
u_int diversity = ath_hal_getdiversity(sc->sc_ah);
Update with last year of work.
2004-12-08 17:34:36 +00:00
int error;
error = sysctl_handle_int(oidp, &diversity, 0, req);
if (error || !req->newptr)
return error;
o fix setup of sc_diversity; the hal does not give us reliable status after attach, only after a reset o when setting diversity via the sysctl don't update sc_diversity until we know the hal requested worked o while here eliminate sc_hasdiversity and sc_hastpc; just query the hal each time since these are the only places we need to know MFC after: 3 days
2005-07-24 05:11:39 +00:00
if (!ath_hal_setdiversity(sc->sc_ah, diversity))
return EINVAL;
Update with last year of work.
2004-12-08 17:34:36 +00:00
sc->sc_diversity = diversity;
o fix setup of sc_diversity; the hal does not give us reliable status after attach, only after a reset o when setting diversity via the sysctl don't update sc_diversity until we know the hal requested worked o while here eliminate sc_hasdiversity and sc_hastpc; just query the hal each time since these are the only places we need to know MFC after: 3 days
2005-07-24 05:11:39 +00:00
return 0;
Update with last year of work.
2004-12-08 17:34:36 +00:00
}
static int
ath_sysctl_diag(SYSCTL_HANDLER_ARGS)
{
struct ath_softc *sc = arg1;
u_int32_t diag;
int error;
if (!ath_hal_getdiag(sc->sc_ah, &diag))
return EINVAL;
error = sysctl_handle_int(oidp, &diag, 0, req);
if (error || !req->newptr)
return error;
return !ath_hal_setdiag(sc->sc_ah, diag) ? EINVAL : 0;
}
static int
ath_sysctl_tpscale(SYSCTL_HANDLER_ARGS)
{
struct ath_softc *sc = arg1;
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
struct ifnet *ifp = sc->sc_ifp;
Update with last year of work.
2004-12-08 17:34:36 +00:00
u_int32_t scale;
int error;
silence some compiler complaints
2007-05-27 05:38:44 +00:00
(void) ath_hal_gettpscale(sc->sc_ah, &scale);
Update with last year of work.
2004-12-08 17:34:36 +00:00
error = sysctl_handle_int(oidp, &scale, 0, req);
if (error || !req->newptr)
return error;
don't call ath_reset when processing sysctl's before the device is marked running; we don't have all the needed state in place Noticed by: Hugo Silva <hugo@barafranca.com> MFC after: 1 week
2007-02-24 23:23:29 +00:00
return !ath_hal_settpscale(sc->sc_ah, scale) ? EINVAL :
(ifp->if_drv_flags & IFF_DRV_RUNNING) ? ath_reset(ifp) : 0;
Update with last year of work.
2004-12-08 17:34:36 +00:00
}
static int
ath_sysctl_tpc(SYSCTL_HANDLER_ARGS)
{
struct ath_softc *sc = arg1;
u_int tpc = ath_hal_gettpc(sc->sc_ah);
int error;
error = sysctl_handle_int(oidp, &tpc, 0, req);
if (error || !req->newptr)
return error;
return !ath_hal_settpc(sc->sc_ah, tpc) ? EINVAL : 0;
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update for rev 0.9.16.16 hal: o add dfs+radar hooks; DFS is presently disabled in the hal o channel and mode handling changes o various api changes o be more aggressive about iq calibration settling so ap mode operation is better immediately after startup o rfkill/rfsilent sysctl support o tpc ack/cts sysctl support MFC after: 2 weeks
2006-02-10 19:07:08 +00:00
static int
ath_sysctl_rfkill(SYSCTL_HANDLER_ARGS)
{
struct ath_softc *sc = arg1;
don't call ath_reset when processing sysctl's before the device is marked running; we don't have all the needed state in place Noticed by: Hugo Silva <hugo@barafranca.com> MFC after: 1 week
2007-02-24 23:23:29 +00:00
struct ifnet *ifp = sc->sc_ifp;
Update for rev 0.9.16.16 hal: o add dfs+radar hooks; DFS is presently disabled in the hal o channel and mode handling changes o various api changes o be more aggressive about iq calibration settling so ap mode operation is better immediately after startup o rfkill/rfsilent sysctl support o tpc ack/cts sysctl support MFC after: 2 weeks
2006-02-10 19:07:08 +00:00
struct ath_hal *ah = sc->sc_ah;
u_int rfkill = ath_hal_getrfkill(ah);
int error;
error = sysctl_handle_int(oidp, &rfkill, 0, req);
if (error || !req->newptr)
return error;
if (rfkill == ath_hal_getrfkill(ah)) /* unchanged */
return 0;
don't call ath_reset when processing sysctl's before the device is marked running; we don't have all the needed state in place Noticed by: Hugo Silva <hugo@barafranca.com> MFC after: 1 week
2007-02-24 23:23:29 +00:00
if (!ath_hal_setrfkill(ah, rfkill))
Update for rev 0.9.16.16 hal: o add dfs+radar hooks; DFS is presently disabled in the hal o channel and mode handling changes o various api changes o be more aggressive about iq calibration settling so ap mode operation is better immediately after startup o rfkill/rfsilent sysctl support o tpc ack/cts sysctl support MFC after: 2 weeks
2006-02-10 19:07:08 +00:00
return EINVAL;
don't call ath_reset when processing sysctl's before the device is marked running; we don't have all the needed state in place Noticed by: Hugo Silva <hugo@barafranca.com> MFC after: 1 week
2007-02-24 23:23:29 +00:00
return (ifp->if_drv_flags & IFF_DRV_RUNNING) ? ath_reset(ifp) : 0;
Update for rev 0.9.16.16 hal: o add dfs+radar hooks; DFS is presently disabled in the hal o channel and mode handling changes o various api changes o be more aggressive about iq calibration settling so ap mode operation is better immediately after startup o rfkill/rfsilent sysctl support o tpc ack/cts sysctl support MFC after: 2 weeks
2006-02-10 19:07:08 +00:00
}
static int
ath_sysctl_rfsilent(SYSCTL_HANDLER_ARGS)
{
struct ath_softc *sc = arg1;
u_int rfsilent;
int error;
silence some compiler complaints
2007-05-27 05:38:44 +00:00
(void) ath_hal_getrfsilent(sc->sc_ah, &rfsilent);
Update for rev 0.9.16.16 hal: o add dfs+radar hooks; DFS is presently disabled in the hal o channel and mode handling changes o various api changes o be more aggressive about iq calibration settling so ap mode operation is better immediately after startup o rfkill/rfsilent sysctl support o tpc ack/cts sysctl support MFC after: 2 weeks
2006-02-10 19:07:08 +00:00
error = sysctl_handle_int(oidp, &rfsilent, 0, req);
if (error || !req->newptr)
return error;
if (!ath_hal_setrfsilent(sc->sc_ah, rfsilent))
return EINVAL;
sc->sc_rfsilentpin = rfsilent & 0x1c;
sc->sc_rfsilentpol = (rfsilent & 0x2) != 0;
return 0;
}
static int
ath_sysctl_tpack(SYSCTL_HANDLER_ARGS)
{
struct ath_softc *sc = arg1;
u_int32_t tpack;
int error;
silence some compiler complaints
2007-05-27 05:38:44 +00:00
(void) ath_hal_gettpack(sc->sc_ah, &tpack);
Update for rev 0.9.16.16 hal: o add dfs+radar hooks; DFS is presently disabled in the hal o channel and mode handling changes o various api changes o be more aggressive about iq calibration settling so ap mode operation is better immediately after startup o rfkill/rfsilent sysctl support o tpc ack/cts sysctl support MFC after: 2 weeks
2006-02-10 19:07:08 +00:00
error = sysctl_handle_int(oidp, &tpack, 0, req);
if (error || !req->newptr)
return error;
return !ath_hal_settpack(sc->sc_ah, tpack) ? EINVAL : 0;
}
static int
ath_sysctl_tpcts(SYSCTL_HANDLER_ARGS)
{
struct ath_softc *sc = arg1;
u_int32_t tpcts;
int error;
silence some compiler complaints
2007-05-27 05:38:44 +00:00
(void) ath_hal_gettpcts(sc->sc_ah, &tpcts);
Update for rev 0.9.16.16 hal: o add dfs+radar hooks; DFS is presently disabled in the hal o channel and mode handling changes o various api changes o be more aggressive about iq calibration settling so ap mode operation is better immediately after startup o rfkill/rfsilent sysctl support o tpc ack/cts sysctl support MFC after: 2 weeks
2006-02-10 19:07:08 +00:00
error = sysctl_handle_int(oidp, &tpcts, 0, req);
if (error || !req->newptr)
return error;
return !ath_hal_settpcts(sc->sc_ah, tpcts) ? EINVAL : 0;
}
add sys.dev.ath.X.intmit knob to enable/disable ANI (the intmit name is historical)
2008-10-27 17:22:46 +00:00
static int
ath_sysctl_intmit(SYSCTL_HANDLER_ARGS)
{
struct ath_softc *sc = arg1;
int intmit, error;
intmit = ath_hal_getintmit(sc->sc_ah);
error = sysctl_handle_int(oidp, &intmit, 0, req);
if (error || !req->newptr)
return error;
return !ath_hal_setintmit(sc->sc_ah, intmit) ? EINVAL : 0;
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
static void
Update with last year of work.
2004-12-08 17:34:36 +00:00
ath_sysctlattach(struct ath_softc *sc)
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
{
Update with last year of work.
2004-12-08 17:34:36 +00:00
struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->sc_dev);
struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev);
o fix setup of sc_diversity; the hal does not give us reliable status after attach, only after a reset o when setting diversity via the sysctl don't update sc_diversity until we know the hal requested worked o while here eliminate sc_hasdiversity and sc_hastpc; just query the hal each time since these are the only places we need to know MFC after: 3 days
2005-07-24 05:11:39 +00:00
struct ath_hal *ah = sc->sc_ah;
Update with last year of work.
2004-12-08 17:34:36 +00:00
add back sysctl's to display the regdomain and country code from eeprom; useful for debugging
2008-05-03 21:52:05 +00:00
SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"countrycode", CTLFLAG_RD, &sc->sc_eecc, 0,
"EEPROM country code");
SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"regdomain", CTLFLAG_RD, &sc->sc_eerd, 0,
"EEPROM regdomain code");
o add opt_ath.h enable tweaking various config parameters for the driver without modifying the source code o default debug msgs and diag support to off MFC after: 3 days
2006-04-03 18:14:02 +00:00
#ifdef ATH_DEBUG
Update with last year of work.
2004-12-08 17:34:36 +00:00
SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"debug", CTLFLAG_RW, &sc->sc_debug, 0,
"control debugging printfs");
fix build w/o AR_DEBUG MFC after: 2 weeks
2006-02-15 18:35:09 +00:00
#endif
Update with last year of work.
2004-12-08 17:34:36 +00:00
SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"slottime", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
ath_sysctl_slottime, "I", "802.11 slot time (us)");
SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"acktimeout", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
ath_sysctl_acktimeout, "I", "802.11 ACK timeout (us)");
SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"ctstimeout", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
ath_sysctl_ctstimeout, "I", "802.11 CTS timeout (us)");
SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"softled", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
ath_sysctl_softled, "I", "enable/disable software LED support");
make dev.ath.N.ledpin have an immediate effect PR: kern/111810 Submitted by: Henrik Brix Andersen <henrik@brixandersen.dk> MFC after: 1 week
2007-04-23 05:57:06 +00:00
SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"ledpin", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
ath_sysctl_ledpin, "I", "GPIO pin connected to LED");
better led blinking
2005-01-18 19:03:04 +00:00
SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"ledon", CTLFLAG_RW, &sc->sc_ledon, 0,
"setting to turn LED on");
SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"ledidle", CTLFLAG_RW, &sc->sc_ledidle, 0,
"idle time for inactivity LED (ticks)");
set the antenna switch when fixing the tx antenna using the dev.ath.X.txantenna sysctl; this is typically what folks want but beware this has the side effect of disabling rx diversity MFC after: 2 weeks
2007-02-24 23:12:58 +00:00
SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"txantenna", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
ath_sysctl_txantenna, "I", "antenna switch");
Update with last year of work.
2004-12-08 17:34:36 +00:00
SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"rxantenna", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
ath_sysctl_rxantenna, "I", "default/rx antenna");
o fix setup of sc_diversity; the hal does not give us reliable status after attach, only after a reset o when setting diversity via the sysctl don't update sc_diversity until we know the hal requested worked o while here eliminate sc_hasdiversity and sc_hastpc; just query the hal each time since these are the only places we need to know MFC after: 3 days
2005-07-24 05:11:39 +00:00
if (ath_hal_hasdiversity(ah))
Update with last year of work.
2004-12-08 17:34:36 +00:00
SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"diversity", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
ath_sysctl_diversity, "I", "antenna diversity");
sc->sc_txintrperiod = ATH_TXINTR_PERIOD;
SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"txintrperiod", CTLFLAG_RW, &sc->sc_txintrperiod, 0,
"tx descriptor batching");
SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"diag", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
ath_sysctl_diag, "I", "h/w diagnostic control");
SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"tpscale", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
ath_sysctl_tpscale, "I", "tx power scaling");
Update for rev 0.9.16.16 hal: o add dfs+radar hooks; DFS is presently disabled in the hal o channel and mode handling changes o various api changes o be more aggressive about iq calibration settling so ap mode operation is better immediately after startup o rfkill/rfsilent sysctl support o tpc ack/cts sysctl support MFC after: 2 weeks
2006-02-10 19:07:08 +00:00
if (ath_hal_hastpc(ah)) {
Update with last year of work.
2004-12-08 17:34:36 +00:00
SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"tpc", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
ath_sysctl_tpc, "I", "enable/disable per-packet TPC");
Update for rev 0.9.16.16 hal: o add dfs+radar hooks; DFS is presently disabled in the hal o channel and mode handling changes o various api changes o be more aggressive about iq calibration settling so ap mode operation is better immediately after startup o rfkill/rfsilent sysctl support o tpc ack/cts sysctl support MFC after: 2 weeks
2006-02-10 19:07:08 +00:00
SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"tpack", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
ath_sysctl_tpack, "I", "tx power for ack frames");
SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"tpcts", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
ath_sysctl_tpcts, "I", "tx power for cts frames");
}
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
if (ath_hal_hasfastframes(sc->sc_ah)) {
sc->sc_fftxqmin = ATH_FF_TXQMIN;
SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"fftxqmin", CTLFLAG_RW, &sc->sc_fftxqmin, 0,
"min frames before fast-frame staging");
sc->sc_fftxqmax = ATH_FF_TXQMAX;
SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"fftxqmax", CTLFLAG_RW, &sc->sc_fftxqmax, 0,
"max queued frames before tail drop");
}
Update for rev 0.9.16.16 hal: o add dfs+radar hooks; DFS is presently disabled in the hal o channel and mode handling changes o various api changes o be more aggressive about iq calibration settling so ap mode operation is better immediately after startup o rfkill/rfsilent sysctl support o tpc ack/cts sysctl support MFC after: 2 weeks
2006-02-10 19:07:08 +00:00
if (ath_hal_hasrfsilent(ah)) {
SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"rfsilent", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
ath_sysctl_rfsilent, "I", "h/w RF silent config");
SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"rfkill", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
ath_sysctl_rfkill, "I", "enable/disable RF kill switch");
}
add sys.dev.ath.X.intmit knob to enable/disable ANI (the intmit name is historical)
2008-10-27 17:22:46 +00:00
if (ath_hal_hasintmit(ah)) {
SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"intmit", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
ath_sysctl_intmit, "I", "interference mitigation");
}
Update monitoring support: o record tsf in tx+rx frames o switch from raw rssi to dbm for signal data and record both signal and noise floor data (hacked for now to assume a fixed noise floor; is correct with new hal) o add monpass sysctl to control which rx'd frames are passed up with errors; especially useful to see frames with CRC errors o mark 'd packets w/ a CRC error with radiotap's BADFCS flag Also add placeholder code for calibrating the noise floor when using newer hals. Reviewed by: avatar MFC after: 1 week
2006-01-09 17:13:20 +00:00
sc->sc_monpass = HAL_RXERR_DECRYPT | HAL_RXERR_MIC;
SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"monpass", CTLFLAG_RW, &sc->sc_monpass, 0,
"mask of error frames to pass when monitoring");
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
#ifdef ATH_SUPPORT_TDMA
if (ath_hal_macversion(ah) > 0x78) {
sc->sc_tdmadbaprep = 2;
SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"dbaprep", CTLFLAG_RW, &sc->sc_tdmadbaprep, 0,
"TDMA DBA preparation time");
sc->sc_tdmaswbaprep = 10;
SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"swbaprep", CTLFLAG_RW, &sc->sc_tdmaswbaprep, 0,
"TDMA SWBA preparation time");
SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"guardtime", CTLFLAG_RW, &sc->sc_tdmaguard, 0,
"TDMA slot guard time");
SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"superframe", CTLFLAG_RD, &sc->sc_tdmabintval, 0,
"TDMA calculated super frame");
}
#endif
Update with last year of work.
2004-12-08 17:34:36 +00:00
}
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
static void
ath_bpfattach(struct ath_softc *sc)
{
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
struct ifnet *ifp = sc->sc_ifp;
Update with last year of work.
2004-12-08 17:34:36 +00:00
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
bpfattach(ifp, DLT_IEEE802_11_RADIO,
sizeof(struct ieee80211_frame) + sizeof(sc->sc_tx_th));
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* Initialize constant fields.
* XXX make header lengths a multiple of 32-bits so subsequent
* headers are properly aligned; this is a kludge to keep
* certain applications happy.
*
* NB: the channel is setup each time we transition to the
* RUN state to avoid filling it in for each frame.
*/
sc->sc_tx_th_len = roundup(sizeof(sc->sc_tx_th), sizeof(u_int32_t));
sc->sc_tx_th.wt_ihdr.it_len = htole16(sc->sc_tx_th_len);
sc->sc_tx_th.wt_ihdr.it_present = htole32(ATH_TX_RADIOTAP_PRESENT);
Fixup radiotap handling of FCS and QoS frames per discussion with David Young: o mark rx frames including FCS in the payload with the IEEE80211_RADIOTAP_F_FCS flag o remove hack to copy 802.11 headers with padding out of line; instead mark the frames with IEEE80211_RADIOTAP_F_DATAPAD and require applications to do the work o split precalculated radiotap flags into tx+rx now that they can be different Note the full usefulness of these changes depends on updates to applications that process radiotap data.
2005-01-24 20:31:24 +00:00
sc->sc_rx_th_len = roundup(sizeof(sc->sc_rx_th), sizeof(u_int32_t));
sc->sc_rx_th.wr_ihdr.it_len = htole16(sc->sc_rx_th_len);
Update with last year of work.
2004-12-08 17:34:36 +00:00
sc->sc_rx_th.wr_ihdr.it_present = htole32(ATH_RX_RADIOTAP_PRESENT);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
raw 802.11 packet transmit support Joint work with: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
2006-08-05 05:07:17 +00:00
static int
ath_tx_raw_start(struct ath_softc *sc, struct ieee80211_node *ni,
struct ath_buf *bf, struct mbuf *m0,
const struct ieee80211_bpf_params *params)
{
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
struct ifnet *ifp = sc->sc_ifp;
struct ieee80211com *ic = ifp->if_l2com;
raw 802.11 packet transmit support Joint work with: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
2006-08-05 05:07:17 +00:00
struct ath_hal *ah = sc->sc_ah;
int error, ismcast, ismrr;
honor IEEE80211_BPF_CRYPTO for raw xmit; fixes shared key auth in sta mode PR: kern/129022
2008-12-07 19:29:11 +00:00
int keyix, hdrlen, pktlen, try0, txantenna;
raw 802.11 packet transmit support Joint work with: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
2006-08-05 05:07:17 +00:00
u_int8_t rix, cix, txrate, ctsrate, rate1, rate2, rate3;
struct ieee80211_frame *wh;
u_int flags, ctsduration;
HAL_PKT_TYPE atype;
const HAL_RATE_TABLE *rt;
struct ath_desc *ds;
u_int pri;
wh = mtod(m0, struct ieee80211_frame *);
ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1);
hdrlen = ieee80211_anyhdrsize(wh);
/*
* Packet length must not include any
* pad bytes; deduct them here.
*/
/* XXX honor IEEE80211_BPF_DATAPAD */
pktlen = m0->m_pkthdr.len - (hdrlen & 3) + IEEE80211_CRC_LEN;
honor IEEE80211_BPF_CRYPTO for raw xmit; fixes shared key auth in sta mode PR: kern/129022
2008-12-07 19:29:11 +00:00
if (params->ibp_flags & IEEE80211_BPF_CRYPTO) {
const struct ieee80211_cipher *cip;
struct ieee80211_key *k;
/*
* Construct the 802.11 header+trailer for an encrypted
* frame. The only reason this can fail is because of an
* unknown or unsupported cipher/key type.
*/
k = ieee80211_crypto_encap(ni, m0);
if (k == NULL) {
/*
* This can happen when the key is yanked after the
* frame was queued. Just discard the frame; the
* 802.11 layer counts failures and provides
* debugging/diagnostics.
*/
ath_freetx(m0);
return EIO;
}
/*
* Adjust the packet + header lengths for the crypto
* additions and calculate the h/w key index. When
* a s/w mic is done the frame will have had any mic
* added to it prior to entry so m0->m_pkthdr.len will
* account for it. Otherwise we need to add it to the
* packet length.
*/
cip = k->wk_cipher;
hdrlen += cip->ic_header;
pktlen += cip->ic_header + cip->ic_trailer;
/* NB: frags always have any TKIP MIC done in s/w */
if ((k->wk_flags & IEEE80211_KEY_SWMIC) == 0)
pktlen += cip->ic_miclen;
keyix = k->wk_keyix;
/* packet header may have moved, reset our local pointer */
wh = mtod(m0, struct ieee80211_frame *);
} else if (ni->ni_ucastkey.wk_cipher == &ieee80211_cipher_none) {
/*
* Use station key cache slot, if assigned.
*/
keyix = ni->ni_ucastkey.wk_keyix;
if (keyix == IEEE80211_KEYIX_NONE)
keyix = HAL_TXKEYIX_INVALID;
} else
keyix = HAL_TXKEYIX_INVALID;
raw 802.11 packet transmit support Joint work with: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
2006-08-05 05:07:17 +00:00
error = ath_tx_dmasetup(sc, bf, m0);
if (error != 0)
return error;
m0 = bf->bf_m; /* NB: may have changed */
wh = mtod(m0, struct ieee80211_frame *);
bf->bf_node = ni; /* NB: held reference */
flags = HAL_TXDESC_CLRDMASK; /* XXX needed for crypto errs */
flags |= HAL_TXDESC_INTREQ; /* force interrupt */
if (params->ibp_flags & IEEE80211_BPF_RTS)
flags |= HAL_TXDESC_RTSENA;
else if (params->ibp_flags & IEEE80211_BPF_CTS)
flags |= HAL_TXDESC_CTSENA;
/* XXX leave ismcast to injector? */
if ((params->ibp_flags & IEEE80211_BPF_NOACK) || ismcast)
flags |= HAL_TXDESC_NOACK;
rt = sc->sc_currates;
KASSERT(rt != NULL, ("no rate table, mode %u", sc->sc_curmode));
rix = ath_tx_findrix(rt, params->ibp_rate0);
txrate = rt->info[rix].rateCode;
if (params->ibp_flags & IEEE80211_BPF_SHORTPRE)
txrate |= rt->info[rix].shortPreamble;
o With the addition of HT rates the set of h/w codes has a much wider range making the use of sc_hwmap to do direct mapping impractical. Switch to indexing by the rate index instead of the rate code and adjust associated state and logic appropriately. This has several benefits including simplification of the led code. o fix radiotap capture of HT rates o fix conditional compilation of HT radiotap support to be based on the hal having 5416 support; not the ABI version as hal builds may or may not include 5416 support
2008-10-27 18:22:44 +00:00
sc->sc_txrix = rix;
raw 802.11 packet transmit support Joint work with: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
2006-08-05 05:07:17 +00:00
try0 = params->ibp_try0;
ismrr = (params->ibp_try1 != 0);
txantenna = params->ibp_pri >> 2;
if (txantenna == 0) /* XXX? */
txantenna = sc->sc_txantenna;
ctsduration = 0;
if (flags & (HAL_TXDESC_CTSENA | HAL_TXDESC_RTSENA)) {
cix = ath_tx_findrix(rt, params->ibp_ctsrate);
ctsrate = rt->info[cix].rateCode;
if (params->ibp_flags & IEEE80211_BPF_SHORTPRE) {
ctsrate |= rt->info[cix].shortPreamble;
if (flags & HAL_TXDESC_RTSENA) /* SIFS + CTS */
ctsduration += rt->info[cix].spAckDuration;
ctsduration += ath_hal_computetxtime(ah,
rt, pktlen, rix, AH_TRUE);
if ((flags & HAL_TXDESC_NOACK) == 0) /* SIFS + ACK */
ctsduration += rt->info[rix].spAckDuration;
} else {
if (flags & HAL_TXDESC_RTSENA) /* SIFS + CTS */
ctsduration += rt->info[cix].lpAckDuration;
ctsduration += ath_hal_computetxtime(ah,
rt, pktlen, rix, AH_FALSE);
if ((flags & HAL_TXDESC_NOACK) == 0) /* SIFS + ACK */
ctsduration += rt->info[rix].lpAckDuration;
}
ismrr = 0; /* XXX */
} else
ctsrate = 0;
pri = params->ibp_pri & 3;
/*
* NB: we mark all packets as type PSPOLL so the h/w won't
* set the sequence number, duration, etc.
*/
atype = HAL_PKT_TYPE_PSPOLL;
if (IFF_DUMPPKTS(sc, ATH_DEBUG_XMIT))
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
ieee80211_dump_pkt(ic, mtod(m0, caddr_t), m0->m_len,
o With the addition of HT rates the set of h/w codes has a much wider range making the use of sc_hwmap to do direct mapping impractical. Switch to indexing by the rate index instead of the rate code and adjust associated state and logic appropriately. This has several benefits including simplification of the led code. o fix radiotap capture of HT rates o fix conditional compilation of HT radiotap support to be based on the hal having 5416 support; not the ABI version as hal builds may or may not include 5416 support
2008-10-27 18:22:44 +00:00
sc->sc_hwmap[rix].ieeerate, -1);
raw 802.11 packet transmit support Joint work with: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
2006-08-05 05:07:17 +00:00
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
if (bpf_peers_present(ifp->if_bpf)) {
raw 802.11 packet transmit support Joint work with: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
2006-08-05 05:07:17 +00:00
u_int64_t tsf = ath_hal_gettsf64(ah);
sc->sc_tx_th.wt_tsf = htole64(tsf);
o With the addition of HT rates the set of h/w codes has a much wider range making the use of sc_hwmap to do direct mapping impractical. Switch to indexing by the rate index instead of the rate code and adjust associated state and logic appropriately. This has several benefits including simplification of the led code. o fix radiotap capture of HT rates o fix conditional compilation of HT radiotap support to be based on the hal having 5416 support; not the ABI version as hal builds may or may not include 5416 support
2008-10-27 18:22:44 +00:00
sc->sc_tx_th.wt_flags = sc->sc_hwmap[rix].txflags;
raw 802.11 packet transmit support Joint work with: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
2006-08-05 05:07:17 +00:00
if (wh->i_fc[1] & IEEE80211_FC1_WEP)
sc->sc_tx_th.wt_flags |= IEEE80211_RADIOTAP_F_WEP;
o With the addition of HT rates the set of h/w codes has a much wider range making the use of sc_hwmap to do direct mapping impractical. Switch to indexing by the rate index instead of the rate code and adjust associated state and logic appropriately. This has several benefits including simplification of the led code. o fix radiotap capture of HT rates o fix conditional compilation of HT radiotap support to be based on the hal having 5416 support; not the ABI version as hal builds may or may not include 5416 support
2008-10-27 18:22:44 +00:00
sc->sc_tx_th.wt_rate = sc->sc_hwmap[rix].ieeerate;
raw 802.11 packet transmit support Joint work with: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
2006-08-05 05:07:17 +00:00
sc->sc_tx_th.wt_txpower = ni->ni_txpower;
sc->sc_tx_th.wt_antenna = sc->sc_txantenna;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
bpf_mtap2(ifp->if_bpf, &sc->sc_tx_th, sc->sc_tx_th_len, m0);
raw 802.11 packet transmit support Joint work with: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
2006-08-05 05:07:17 +00:00
}
/*
* Formulate first tx descriptor with tx controls.
*/
ds = bf->bf_desc;
/* XXX check return value? */
ath_hal_setuptxdesc(ah, ds
, pktlen /* packet length */
, hdrlen /* header length */
, atype /* Atheros packet type */
, params->ibp_power /* txpower */
, txrate, try0 /* series 0 rate/tries */
honor IEEE80211_BPF_CRYPTO for raw xmit; fixes shared key auth in sta mode PR: kern/129022
2008-12-07 19:29:11 +00:00
, keyix /* key cache index */
raw 802.11 packet transmit support Joint work with: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
2006-08-05 05:07:17 +00:00
, txantenna /* antenna mode */
, flags /* flags */
, ctsrate /* rts/cts rate */
, ctsduration /* rts/cts duration */
);
rename bf_flags to bf_txflags in preparation for the addition of flags separate from the tx descriptor flags currently recorded
2008-10-27 17:16:46 +00:00
bf->bf_txflags = flags;
raw 802.11 packet transmit support Joint work with: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
2006-08-05 05:07:17 +00:00
if (ismrr) {
rix = ath_tx_findrix(rt, params->ibp_rate1);
rate1 = rt->info[rix].rateCode;
if (params->ibp_flags & IEEE80211_BPF_SHORTPRE)
rate1 |= rt->info[rix].shortPreamble;
if (params->ibp_try2) {
rix = ath_tx_findrix(rt, params->ibp_rate2);
rate2 = rt->info[rix].rateCode;
if (params->ibp_flags & IEEE80211_BPF_SHORTPRE)
rate2 |= rt->info[rix].shortPreamble;
} else
rate2 = 0;
if (params->ibp_try3) {
rix = ath_tx_findrix(rt, params->ibp_rate3);
rate3 = rt->info[rix].rateCode;
if (params->ibp_flags & IEEE80211_BPF_SHORTPRE)
rate3 |= rt->info[rix].shortPreamble;
} else
rate3 = 0;
ath_hal_setupxtxdesc(ah, ds
, rate1, params->ibp_try1 /* series 1 */
, rate2, params->ibp_try2 /* series 2 */
, rate3, params->ibp_try3 /* series 3 */
);
}
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
/* NB: no buffered multicast in power save support */
ath_tx_handoff(sc, sc->sc_ac2q[pri], bf);
raw 802.11 packet transmit support Joint work with: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
2006-08-05 05:07:17 +00:00
return 0;
}
static int
ath_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
const struct ieee80211_bpf_params *params)
{
struct ieee80211com *ic = ni->ni_ic;
struct ifnet *ifp = ic->ic_ifp;
struct ath_softc *sc = ifp->if_softc;
struct ath_buf *bf;
if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0 || sc->sc_invalid) {
- Fix mbuf/node leakage in drivers' raw_xmit(). - For ural(4): o Fix node leakage in ural_start(), if ural_tx_mgt() fails. o Fix mbuf leakage in ural_tx_{mgt,data}(), if usbd_transfer() fails. o In ural_tx_{mgt,data}(), set ural_tx_data.{m,ni} to NULL, if usbd_transfer() fails, so they will not be freed again in ural_stop(). Approved by: sam (mentor)
2007-04-19 13:09:57 +00:00
ieee80211_free_node(ni);
raw 802.11 packet transmit support Joint work with: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
2006-08-05 05:07:17 +00:00
m_freem(m);
return ENETDOWN;
}
/*
* Grab a TX buffer and associated resources.
*/
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
bf = ath_getbuf(sc);
raw 802.11 packet transmit support Joint work with: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
2006-08-05 05:07:17 +00:00
if (bf == NULL) {
- Fix mbuf/node leakage in drivers' raw_xmit(). - For ural(4): o Fix node leakage in ural_start(), if ural_tx_mgt() fails. o Fix mbuf leakage in ural_tx_{mgt,data}(), if usbd_transfer() fails. o In ural_tx_{mgt,data}(), set ural_tx_data.{m,ni} to NULL, if usbd_transfer() fails, so they will not be freed again in ural_stop(). Approved by: sam (mentor)
2007-04-19 13:09:57 +00:00
ieee80211_free_node(ni);
raw 802.11 packet transmit support Joint work with: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
2006-08-05 05:07:17 +00:00
m_freem(m);
return ENOBUFS;
}
ifp->if_opackets++;
sc->sc_stats.ast_tx_raw++;
if (params == NULL) {
/*
* Legacy path; interpret frame contents to decide
* precisely how to send the frame.
*/
if (ath_tx_start(sc, ni, bf, m))
goto bad;
} else {
/*
* Caller supplied explicit parameters to use in
* sending the frame.
*/
if (ath_tx_raw_start(sc, ni, bf, m, params))
goto bad;
}
Update 802.11 wireless support: o major overhaul of the way channels are handled: channels are now fully enumerated and uniquely identify the operating characteristics; these changes are visible to user applications which require changes o make scanning support independent of the state machine to enable background scanning and roaming o move scanning support into loadable modules based on the operating mode to enable different policies and reduce the memory footprint on systems w/ constrained resources o add background scanning in station mode (no support for adhoc/ibss mode yet) o significantly speedup sta mode scanning with a variety of techniques o add roaming support when background scanning is supported; for now we use a simple algorithm to trigger a roam: we threshold the rssi and tx rate, if either drops too low we try to roam to a new ap o add tx fragmentation support o add first cut at 802.11n support: this code works with forthcoming drivers but is incomplete; it's included now to establish a baseline for other drivers to be developed and for user applications o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates prepending mbufs for traffic generated locally o add support for Atheros protocol extensions; mainly the fast frames encapsulation (note this can be used with any card that can tx+rx large frames correctly) o add sta support for ap's that beacon both WPA1+2 support o change all data types from bsd-style to posix-style o propagate noise floor data from drivers to net80211 and on to user apps o correct various issues in the sta mode state machine related to handling authentication and association failures o enable the addition of sta mode power save support for drivers that need net80211 support (not in this commit) o remove old WI compatibility ioctls (wicontrol is officially dead) o change the data structures returned for get sta info and get scan results so future additions will not break user apps o fixed tx rate is now maintained internally as an ieee rate and not an index into the rate set; this needs to be extended to deal with multi-mode operation o add extended channel specifications to radiotap to enable 11n sniffing Drivers: o ath: add support for bg scanning, tx fragmentation, fast frames, dynamic turbo (lightly tested), 11n (sniffing only and needs new hal) o awi: compile tested only o ndis: lightly tested o ipw: lightly tested o iwi: add support for bg scanning (well tested but may have some rough edges) o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data o wi: lightly tested This work is based on contributions by Atheros, kmacy, sephe, thompsa, mlaier, kevlo, and others. Much of the scanning work was supported by Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
ifp->if_timer = 5;
raw 802.11 packet transmit support Joint work with: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
2006-08-05 05:07:17 +00:00
return 0;
bad:
ifp->if_oerrors++;
ATH_TXBUF_LOCK(sc);
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
STAILQ_INSERT_HEAD(&sc->sc_txbuf, bf, bf_list);
raw 802.11 packet transmit support Joint work with: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
2006-08-05 05:07:17 +00:00
ATH_TXBUF_UNLOCK(sc);
ieee80211_free_node(ni);
return EIO; /* XXX */
}
Update with last year of work.
2004-12-08 17:34:36 +00:00
/*
* Announce various information on device/driver attach.
*/
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
static void
Update with last year of work.
2004-12-08 17:34:36 +00:00
ath_announce(struct ath_softc *sc)
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
{
Update with last year of work.
2004-12-08 17:34:36 +00:00
#define HAL_MODE_DUALBAND (HAL_MODE_11A|HAL_MODE_11B)
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
struct ifnet *ifp = sc->sc_ifp;
Update with last year of work.
2004-12-08 17:34:36 +00:00
struct ath_hal *ah = sc->sc_ah;
u_int modes, cc;
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
Update with last year of work.
2004-12-08 17:34:36 +00:00
if_printf(ifp, "mac %d.%d phy %d.%d",
ah->ah_macVersion, ah->ah_macRev,
ah->ah_phyRev >> 4, ah->ah_phyRev & 0xf);
/*
* Print radio revision(s). We check the wireless modes
* to avoid falsely printing revs for inoperable parts.
* Dual-band radio revs are returned in the 5Ghz rev number.
*/
ath_hal_getcountrycode(ah, &cc);
modes = ath_hal_getwirelessmodes(ah, cc);
if ((modes & HAL_MODE_DUALBAND) == HAL_MODE_DUALBAND) {
if (ah->ah_analog5GhzRev && ah->ah_analog2GhzRev)
printf(" 5ghz radio %d.%d 2ghz radio %d.%d",
ah->ah_analog5GhzRev >> 4,
ah->ah_analog5GhzRev & 0xf,
ah->ah_analog2GhzRev >> 4,
ah->ah_analog2GhzRev & 0xf);
else
printf(" radio %d.%d", ah->ah_analog5GhzRev >> 4,
ah->ah_analog5GhzRev & 0xf);
} else
printf(" radio %d.%d", ah->ah_analog5GhzRev >> 4,
ah->ah_analog5GhzRev & 0xf);
printf("\n");
if (bootverbose) {
int i;
for (i = 0; i <= WME_AC_VO; i++) {
struct ath_txq *txq = sc->sc_ac2q[i];
if_printf(ifp, "Use hw queue %u for %s traffic\n",
txq->axq_qnum, ieee80211_wme_acnames[i]);
}
if_printf(ifp, "Use hw queue %u for CAB traffic\n",
sc->sc_cabq->axq_qnum);
if_printf(ifp, "Use hw queue %u for beacons\n", sc->sc_bhalq);
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
allow the size of tx+rx buffer pools to be tuned MFC after: 2 weeks
2006-02-09 21:03:25 +00:00
if (ath_rxbuf != ATH_RXBUF)
if_printf(ifp, "using %u rx buffers\n", ath_rxbuf);
if (ath_txbuf != ATH_TXBUF)
if_printf(ifp, "using %u tx buffers\n", ath_txbuf);
Update with last year of work.
2004-12-08 17:34:36 +00:00
#undef HAL_MODE_DUALBAND
Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL). Supported by: Atheros Comunications
2003-06-23 17:01:19 +00:00
}
TDMA support for long distance point-to-point links using ath devices: o add net80211 support for a tdma vap that is built on top of the existing adhoc-demo support o add tdma scheduling of frame transmission to the ath driver; it's conceivable other devices might be capable of this too in which case they can make use of the 802.11 protocol additions etc. o add minor bits to user tools that need to know: ifconfig to setup and configure, new statistics in athstats, and new debug mask bits While the architecture can support >2 slots in a TDMA BSS the current design is intended (and tested) for only 2 slots. Sponsored by: Intel
2009-01-08 17:12:47 +00:00
#ifdef ATH_SUPPORT_TDMA
static __inline uint32_t
ath_hal_getnexttbtt(struct ath_hal *ah)
{
#define AR_TIMER0 0x8028
return OS_REG_READ(ah, AR_TIMER0);
}
static __inline void
ath_hal_adjusttsf(struct ath_hal *ah, int32_t tsfdelta)
{
/* XXX handle wrap/overflow */
OS_REG_WRITE(ah, AR_TSF_L32, OS_REG_READ(ah, AR_TSF_L32) + tsfdelta);
}
static void
ath_tdma_settimers(struct ath_softc *sc, u_int32_t nexttbtt, u_int32_t bintval)
{
struct ath_hal *ah = sc->sc_ah;
HAL_BEACON_TIMERS bt;
bt.bt_intval = bintval | HAL_BEACON_ENA;
bt.bt_nexttbtt = nexttbtt;
bt.bt_nextdba = (nexttbtt<<3) - sc->sc_tdmadbaprep;
bt.bt_nextswba = (nexttbtt<<3) - sc->sc_tdmaswbaprep;
bt.bt_nextatim = nexttbtt+1;
ath_hal_beaconsettimers(ah, &bt);
}
/*
* Calculate the beacon interval. This is periodic in the
* superframe for the bss. We assume each station is configured
* identically wrt transmit rate so the guard time we calculate
* above will be the same on all stations. Note we need to
* factor in the xmit time because the hardware will schedule
* a frame for transmit if the start of the frame is within
* the burst time. When we get hardware that properly kills
* frames in the PCU we can reduce/eliminate the guard time.
*
* Roundup to 1024 is so we have 1 TU buffer in the guard time
* to deal with the granularity of the nexttbtt timer. 11n MAC's
* with 1us timer granularity should allow us to reduce/eliminate
* this.
*/
static void
ath_tdma_bintvalsetup(struct ath_softc *sc,
const struct ieee80211_tdma_state *tdma)
{
/* copy from vap state (XXX check all vaps have same value?) */
sc->sc_tdmaslotlen = tdma->tdma_slotlen;
sc->sc_tdmabintcnt = tdma->tdma_bintval;
sc->sc_tdmabintval = roundup((sc->sc_tdmaslotlen+sc->sc_tdmaguard) *
tdma->tdma_slotcnt, 1024);
sc->sc_tdmabintval >>= 10; /* TSF -> TU */
if (sc->sc_tdmabintval & 1)
sc->sc_tdmabintval++;
if (tdma->tdma_slot == 0) {
/*
* Only slot 0 beacons; other slots respond.
*/
sc->sc_imask |= HAL_INT_SWBA;
sc->sc_tdmaswba = 0; /* beacon immediately */
} else {
/* XXX all vaps must be slot 0 or slot !0 */
sc->sc_imask &= ~HAL_INT_SWBA;
}
}
/*
* Max 802.11 overhead. This assumes no 4-address frames and
* the encapsulation done by ieee80211_encap (llc). We also
* include potential crypto overhead.
*/
#define IEEE80211_MAXOVERHEAD \
(sizeof(struct ieee80211_qosframe) \
+ sizeof(struct llc) \
+ IEEE80211_ADDR_LEN \
+ IEEE80211_WEP_IVLEN \
+ IEEE80211_WEP_KIDLEN \
+ IEEE80211_WEP_CRCLEN \
+ IEEE80211_WEP_MICLEN \
+ IEEE80211_CRC_LEN)
/*
* Setup initially for tdma operation. Start the beacon
* timers and enable SWBA if we are slot 0. Otherwise
* we wait for slot 0 to arrive so we can sync up before
* starting to transmit.
*/
static void
ath_tdma_config(struct ath_softc *sc, struct ieee80211vap *vap)
{
struct ath_hal *ah = sc->sc_ah;
struct ifnet *ifp = sc->sc_ifp;
struct ieee80211com *ic = ifp->if_l2com;
const struct ieee80211_txparam *tp;
const struct ieee80211_tdma_state *tdma = NULL;
int rix;
if (vap == NULL) {
vap = TAILQ_FIRST(&ic->ic_vaps); /* XXX */
if (vap == NULL) {
if_printf(ifp, "%s: no vaps?\n", __func__);
return;
}
}
tp = vap->iv_bss->ni_txparms;
/*
* Calculate the guard time for each slot. This is the
* time to send a maximal-size frame according to the
* fixed/lowest transmit rate. Note that the interface
* mtu does not include the 802.11 overhead so we must
* tack that on (ath_hal_computetxtime includes the
* preamble and plcp in it's calculation).
*/
tdma = vap->iv_tdma;
if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE)
rix = ath_tx_findrix(sc->sc_currates, tp->ucastrate);
else
rix = ath_tx_findrix(sc->sc_currates, tp->mcastrate);
/* XXX short preamble assumed */
sc->sc_tdmaguard = ath_hal_computetxtime(ah, sc->sc_currates,
ifp->if_mtu + IEEE80211_MAXOVERHEAD, rix, AH_TRUE);
ath_hal_intrset(ah, 0);
ath_beaconq_config(sc); /* setup h/w beacon q */
ath_hal_setcca(ah, AH_FALSE); /* disable CCA */
ath_tdma_bintvalsetup(sc, tdma); /* calculate beacon interval */
ath_tdma_settimers(sc, sc->sc_tdmabintval,
sc->sc_tdmabintval | HAL_BEACON_RESET_TSF);
sc->sc_syncbeacon = 0;
sc->sc_avgtsfdeltap = TDMA_DUMMY_MARKER;
sc->sc_avgtsfdeltam = TDMA_DUMMY_MARKER;
ath_hal_intrset(ah, sc->sc_imask);
DPRINTF(sc, ATH_DEBUG_TDMA, "%s: slot %u len %uus cnt %u "
"bsched %u guard %uus bintval %u TU dba prep %u\n", __func__,
tdma->tdma_slot, tdma->tdma_slotlen, tdma->tdma_slotcnt,
tdma->tdma_bintval, sc->sc_tdmaguard, sc->sc_tdmabintval,
sc->sc_tdmadbaprep);
}
/*
* Update tdma operation. Called from the 802.11 layer
* when a beacon is received from the TDMA station operating
* in the slot immediately preceding us in the bss. Use
* the rx timestamp for the beacon frame to update our
* beacon timers so we follow their schedule. Note that
* by using the rx timestamp we implicitly include the
* propagation delay in our schedule.
*/
static void
ath_tdma_update(struct ieee80211_node *ni,
const struct ieee80211_tdma_param *tdma)
{
#define TSF_TO_TU(_h,_l) \
((((u_int32_t)(_h)) << 22) | (((u_int32_t)(_l)) >> 10))
#define TU_TO_TSF(_tu) (((u_int64_t)(_tu)) << 10)
struct ieee80211vap *vap = ni->ni_vap;
struct ieee80211com *ic = ni->ni_ic;
struct ath_softc *sc = ic->ic_ifp->if_softc;
struct ath_hal *ah = sc->sc_ah;
const HAL_RATE_TABLE *rt = sc->sc_currates;
u_int64_t tsf, rstamp, nextslot;
u_int32_t txtime, nextslottu, timer0;
int32_t tudelta, tsfdelta;
const struct ath_rx_status *rs;
int rix;
sc->sc_stats.ast_tdma_update++;
/*
* Check for and adopt configuration changes.
*/
if (isset(ATH_VAP(vap)->av_boff.bo_flags, IEEE80211_BEACON_TDMA)) {
const struct ieee80211_tdma_state *ts = vap->iv_tdma;
ath_tdma_bintvalsetup(sc, ts);
DPRINTF(sc, ATH_DEBUG_TDMA,
"%s: adopt slot %u slotcnt %u slotlen %u us "
"bintval %u TU\n", __func__,
ts->tdma_slot, ts->tdma_slotcnt, ts->tdma_slotlen,
sc->sc_tdmabintval);
ath_beaconq_config(sc);
/* XXX right? */
ath_hal_intrset(ah, sc->sc_imask);
/* NB: beacon timers programmed below */
}
/* extend rx timestamp to 64 bits */
tsf = ath_hal_gettsf64(ah);
rstamp = ath_extend_tsf(ni->ni_rstamp, tsf);
/*
* The rx timestamp is set by the hardware on completing
* reception (at the point where the rx descriptor is DMA'd
* to the host). To find the start of our next slot we
* must adjust this time by the time required to send
* the packet just received.
*/
rs = sc->sc_tdmars;
rix = rt->rateCodeToIndex[rs->rs_rate];
txtime = ath_hal_computetxtime(ah, rt, rs->rs_datalen, rix,
rt->info[rix].shortPreamble);
/* NB: << 9 is to cvt to TU and /2 */
nextslot = (rstamp - txtime) + (sc->sc_tdmabintval << 9);
nextslottu = TSF_TO_TU(nextslot>>32, nextslot) & HAL_BEACON_PERIOD;
/*
* TIMER0 is the h/w's idea of NextTBTT (in TU's). Convert
* to usecs and calculate the difference between what the
* other station thinks and what we have programmed. This
* lets us figure how to adjust our timers to match. The
* adjustments are done by pulling the TSF forward and possibly
* rewriting the beacon timers.
*/
timer0 = ath_hal_getnexttbtt(ah);
tsfdelta = (int32_t)((nextslot % TU_TO_TSF(HAL_BEACON_PERIOD+1)) - TU_TO_TSF(timer0));
DPRINTF(sc, ATH_DEBUG_TDMA_TIMER,
"tsfdelta %d avg +%d/-%d\n", tsfdelta,
TDMA_AVG(sc->sc_avgtsfdeltap), TDMA_AVG(sc->sc_avgtsfdeltam));
if (tsfdelta < 0) {
TDMA_SAMPLE(sc->sc_avgtsfdeltap, 0);
TDMA_SAMPLE(sc->sc_avgtsfdeltam, -tsfdelta);
tsfdelta = -tsfdelta % 1024;
nextslottu++;
} else if (tsfdelta > 0) {
TDMA_SAMPLE(sc->sc_avgtsfdeltap, tsfdelta);
TDMA_SAMPLE(sc->sc_avgtsfdeltam, 0);
tsfdelta = 1024 - (tsfdelta % 1024);
nextslottu++;
} else {
TDMA_SAMPLE(sc->sc_avgtsfdeltap, 0);
TDMA_SAMPLE(sc->sc_avgtsfdeltam, 0);
}
tudelta = nextslottu - timer0;
/*
* Copy sender's timetstamp into tdma ie so they can
* calculate roundtrip time. We submit a beacon frame
* below after any timer adjustment. The frame goes out
* at the next TBTT so the sender can calculate the
* roundtrip by inspecting the tdma ie in our beacon frame.
*
* NB: This tstamp is subtlely preserved when
* IEEE80211_BEACON_TDMA is marked (e.g. when the
* slot position changes) because ieee80211_add_tdma
* skips over the data.
*/
memcpy(ATH_VAP(vap)->av_boff.bo_tdma +
__offsetof(struct ieee80211_tdma_param, tdma_tstamp),
&ni->ni_tstamp.data, 8);
#if 0
DPRINTF(sc, ATH_DEBUG_TDMA_TIMER,
"tsf %llu nextslot %llu (%d, %d) nextslottu %u timer0 %u (%d)\n",
(unsigned long long) tsf, (unsigned long long) nextslot,
(int)(nextslot - tsf), tsfdelta,
nextslottu, timer0, tudelta);
#endif
/*
* Adjust the beacon timers only when pulling them forward
* or when going back by less than the beacon interval.
* Negative jumps larger than the beacon interval seem to
* cause the timers to stop and generally cause instability.
* This basically filters out jumps due to missed beacons.
*/
if (tudelta != 0 && (tudelta > 0 || -tudelta < sc->sc_tdmabintval)) {
ath_tdma_settimers(sc, nextslottu, sc->sc_tdmabintval);
sc->sc_stats.ast_tdma_timers++;
}
if (tsfdelta > 0) {
ath_hal_adjusttsf(ah, tsfdelta);
sc->sc_stats.ast_tdma_tsf++;
}
ath_tdma_beacon_send(sc, vap); /* prepare response */
#undef TU_TO_TSF
#undef TSF_TO_TU
}
/*
* Transmit a beacon frame at SWBA. Dynamic updates
* to the frame contents are done as needed.
*/
static void
ath_tdma_beacon_send(struct ath_softc *sc, struct ieee80211vap *vap)
{
struct ath_hal *ah = sc->sc_ah;
struct ath_buf *bf;
int otherant;
/*
* Check if the previous beacon has gone out. If
* not don't try to post another, skip this period
* and wait for the next. Missed beacons indicate
* a problem and should not occur. If we miss too
* many consecutive beacons reset the device.
*/
if (ath_hal_numtxpending(ah, sc->sc_bhalq) != 0) {
sc->sc_bmisscount++;
DPRINTF(sc, ATH_DEBUG_BEACON,
"%s: missed %u consecutive beacons\n",
__func__, sc->sc_bmisscount);
if (sc->sc_bmisscount > 3) /* NB: 3 is a guess */
taskqueue_enqueue(sc->sc_tq, &sc->sc_bstucktask);
return;
}
if (sc->sc_bmisscount != 0) {
DPRINTF(sc, ATH_DEBUG_BEACON,
"%s: resume beacon xmit after %u misses\n",
__func__, sc->sc_bmisscount);
sc->sc_bmisscount = 0;
}
/*
* Check recent per-antenna transmit statistics and flip
* the default antenna if noticeably more frames went out
* on the non-default antenna.
* XXX assumes 2 anntenae
*/
if (!sc->sc_diversity) {
otherant = sc->sc_defant & 1 ? 2 : 1;
if (sc->sc_ant_tx[otherant] > sc->sc_ant_tx[sc->sc_defant] + 2)
ath_setdefantenna(sc, otherant);
sc->sc_ant_tx[1] = sc->sc_ant_tx[2] = 0;
}
bf = ath_beacon_generate(sc, vap);
if (bf != NULL) {
/*
* Stop any current dma and put the new frame on the queue.
* This should never fail since we check above that no frames
* are still pending on the queue.
*/
if (!ath_hal_stoptxdma(ah, sc->sc_bhalq)) {
DPRINTF(sc, ATH_DEBUG_ANY,
"%s: beacon queue %u did not stop?\n",
__func__, sc->sc_bhalq);
/* NB: the HAL still stops DMA, so proceed */
}
ath_hal_puttxbuf(ah, sc->sc_bhalq, bf->bf_daddr);
ath_hal_txstart(ah, sc->sc_bhalq);
sc->sc_stats.ast_be_xmit++; /* XXX per-vap? */
/*
* Record local TSF for our last send for use
* in arbitrating slot collisions.
*/
vap->iv_bss->ni_tstamp.tsf = ath_hal_gettsf64(ah);
}
}
#endif /* ATH_SUPPORT_TDMA */
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