d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
66a0596cee
freebsd-skq/sys/net80211/ieee80211_ht.c

2903 lines
84 KiB
C
Raw Normal View History

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
* Copyright (c) 2007-2008 Sam Leffler, Errno Consulting
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
* 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.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, 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 DAMAGE.
*/
#include <sys/cdefs.h>
#ifdef __FreeBSD__
__FBSDID("$FreeBSD$");
#endif
/*
* IEEE 802.11n protocol support.
*/
#include "opt_inet.h"
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
#include "opt_wlan.h"
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
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/systm.h>
#include <sys/endian.h>
#include <sys/socket.h>
#include <net/if.h>
The r48589 promised to remove implicit inclusion of if_var.h soon. Prepare to this event, adding if_var.h to files that do need it. Also, include all includes that now are included due to implicit pollution via if_var.h Sponsored by: Netflix Sponsored by: Nginx, Inc.
2013-10-26 17:58:36 +00:00
#include <net/if_var.h>
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
#include <net/if_media.h>
#include <net/ethernet.h>
#include <net80211/ieee80211_var.h>
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
#include <net80211/ieee80211_action.h>
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
#include <net80211/ieee80211_input.h>
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
/* define here, used throughout file */
#define MS(_v, _f) (((_v) & _f) >> _f##_S)
#define SM(_v, _f) (((_v) << _f##_S) & _f)
Complete the MCS rate table based on the final 802.11n std. While here adjust the IEEE80211_HTRATE_MAXSIZE constant, only MCS0 - 76 are valid the other bits in the mcsset IE (77 - 127) are either reserved or used for TX parameters.
2011-03-10 18:17:24 +00:00
const struct ieee80211_mcs_rates ieee80211_htrates[IEEE80211_HTRATE_MAXSIZE] = {
{ 13, 14, 27, 30 }, /* MCS 0 */
{ 26, 29, 54, 60 }, /* MCS 1 */
{ 39, 43, 81, 90 }, /* MCS 2 */
{ 52, 58, 108, 120 }, /* MCS 3 */
{ 78, 87, 162, 180 }, /* MCS 4 */
{ 104, 116, 216, 240 }, /* MCS 5 */
{ 117, 130, 243, 270 }, /* MCS 6 */
{ 130, 144, 270, 300 }, /* MCS 7 */
{ 26, 29, 54, 60 }, /* MCS 8 */
{ 52, 58, 108, 120 }, /* MCS 9 */
{ 78, 87, 162, 180 }, /* MCS 10 */
{ 104, 116, 216, 240 }, /* MCS 11 */
{ 156, 173, 324, 360 }, /* MCS 12 */
{ 208, 231, 432, 480 }, /* MCS 13 */
{ 234, 260, 486, 540 }, /* MCS 14 */
{ 260, 289, 540, 600 }, /* MCS 15 */
{ 39, 43, 81, 90 }, /* MCS 16 */
{ 78, 87, 162, 180 }, /* MCS 17 */
{ 117, 130, 243, 270 }, /* MCS 18 */
{ 156, 173, 324, 360 }, /* MCS 19 */
{ 234, 260, 486, 540 }, /* MCS 20 */
{ 312, 347, 648, 720 }, /* MCS 21 */
{ 351, 390, 729, 810 }, /* MCS 22 */
{ 390, 433, 810, 900 }, /* MCS 23 */
{ 52, 58, 108, 120 }, /* MCS 24 */
{ 104, 116, 216, 240 }, /* MCS 25 */
{ 156, 173, 324, 360 }, /* MCS 26 */
{ 208, 231, 432, 480 }, /* MCS 27 */
{ 312, 347, 648, 720 }, /* MCS 28 */
{ 416, 462, 864, 960 }, /* MCS 29 */
{ 468, 520, 972, 1080 }, /* MCS 30 */
{ 520, 578, 1080, 1200 }, /* MCS 31 */
{ 0, 0, 12, 13 }, /* MCS 32 */
{ 78, 87, 162, 180 }, /* MCS 33 */
{ 104, 116, 216, 240 }, /* MCS 34 */
{ 130, 144, 270, 300 }, /* MCS 35 */
{ 117, 130, 243, 270 }, /* MCS 36 */
{ 156, 173, 324, 360 }, /* MCS 37 */
{ 195, 217, 405, 450 }, /* MCS 38 */
{ 104, 116, 216, 240 }, /* MCS 39 */
{ 130, 144, 270, 300 }, /* MCS 40 */
{ 130, 144, 270, 300 }, /* MCS 41 */
{ 156, 173, 324, 360 }, /* MCS 42 */
{ 182, 202, 378, 420 }, /* MCS 43 */
{ 182, 202, 378, 420 }, /* MCS 44 */
{ 208, 231, 432, 480 }, /* MCS 45 */
{ 156, 173, 324, 360 }, /* MCS 46 */
{ 195, 217, 405, 450 }, /* MCS 47 */
{ 195, 217, 405, 450 }, /* MCS 48 */
{ 234, 260, 486, 540 }, /* MCS 49 */
{ 273, 303, 567, 630 }, /* MCS 50 */
{ 273, 303, 567, 630 }, /* MCS 51 */
{ 312, 347, 648, 720 }, /* MCS 52 */
{ 130, 144, 270, 300 }, /* MCS 53 */
{ 156, 173, 324, 360 }, /* MCS 54 */
{ 182, 202, 378, 420 }, /* MCS 55 */
{ 156, 173, 324, 360 }, /* MCS 56 */
{ 182, 202, 378, 420 }, /* MCS 57 */
{ 208, 231, 432, 480 }, /* MCS 58 */
{ 234, 260, 486, 540 }, /* MCS 59 */
{ 208, 231, 432, 480 }, /* MCS 60 */
{ 234, 260, 486, 540 }, /* MCS 61 */
{ 260, 289, 540, 600 }, /* MCS 62 */
{ 260, 289, 540, 600 }, /* MCS 63 */
{ 286, 318, 594, 660 }, /* MCS 64 */
{ 195, 217, 405, 450 }, /* MCS 65 */
{ 234, 260, 486, 540 }, /* MCS 66 */
{ 273, 303, 567, 630 }, /* MCS 67 */
{ 234, 260, 486, 540 }, /* MCS 68 */
{ 273, 303, 567, 630 }, /* MCS 69 */
{ 312, 347, 648, 720 }, /* MCS 70 */
{ 351, 390, 729, 810 }, /* MCS 71 */
{ 312, 347, 648, 720 }, /* MCS 72 */
{ 351, 390, 729, 810 }, /* MCS 73 */
{ 390, 433, 810, 900 }, /* MCS 74 */
{ 390, 433, 810, 900 }, /* MCS 75 */
{ 429, 477, 891, 990 }, /* MCS 76 */
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
};
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
#ifdef IEEE80211_AMPDU_AGE
distribute sysctl decls so global variables can be made static
2009-05-30 20:11:23 +00:00
static int ieee80211_ampdu_age = -1; /* threshold for ampdu reorder q (ms) */
SYSCTL_PROC(_net_wlan, OID_AUTO, ampdu_age, CTLTYPE_INT | CTLFLAG_RW,
&ieee80211_ampdu_age, 0, ieee80211_sysctl_msecs_ticks, "I",
"AMPDU max reorder age (ms)");
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
#endif
distribute sysctl decls so global variables can be made static
2009-05-30 20:11:23 +00:00
static int ieee80211_recv_bar_ena = 1;
SYSCTL_INT(_net_wlan, OID_AUTO, recv_bar, CTLFLAG_RW, &ieee80211_recv_bar_ena,
0, "BAR frame processing (ena/dis)");
static int ieee80211_addba_timeout = -1;/* timeout for ADDBA response */
SYSCTL_PROC(_net_wlan, OID_AUTO, addba_timeout, CTLTYPE_INT | CTLFLAG_RW,
&ieee80211_addba_timeout, 0, ieee80211_sysctl_msecs_ticks, "I",
"ADDBA request timeout (ms)");
static int ieee80211_addba_backoff = -1;/* backoff after max ADDBA requests */
SYSCTL_PROC(_net_wlan, OID_AUTO, addba_backoff, CTLTYPE_INT | CTLFLAG_RW,
&ieee80211_addba_backoff, 0, ieee80211_sysctl_msecs_ticks, "I",
"ADDBA request backoff (ms)");
static int ieee80211_addba_maxtries = 3;/* max ADDBA requests before backoff */
Fix multiple incorrect SYSCTL arguments in the kernel: - Wrong integer type was specified. - Wrong or missing "access" specifier. The "access" specifier sometimes included the SYSCTL type, which it should not, except for procedural SYSCTL nodes. - Logical OR where binary OR was expected. - Properly assert the "access" argument passed to all SYSCTL macros, using the CTASSERT macro. This applies to both static- and dynamically created SYSCTLs. - Properly assert the the data type for both static and dynamic SYSCTLs. In the case of static SYSCTLs we only assert that the data pointed to by the SYSCTL data pointer has the correct size, hence there is no easy way to assert types in the C language outside a C-function. - Rewrote some code which doesn't pass a constant "access" specifier when creating dynamic SYSCTL nodes, which is now a requirement. - Updated "EXAMPLES" section in SYSCTL manual page. MFC after: 3 days Sponsored by: Mellanox Technologies
2014-10-21 07:31:21 +00:00
SYSCTL_INT(_net_wlan, OID_AUTO, addba_maxtries, CTLFLAG_RW,
distribute sysctl decls so global variables can be made static
2009-05-30 20:11:23 +00:00
&ieee80211_addba_maxtries, 0, "max ADDBA requests sent before backoff");
static int ieee80211_bar_timeout = -1; /* timeout waiting for BAR response */
static int ieee80211_bar_maxtries = 50;/* max BAR requests before DELBA */
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
static ieee80211_recv_action_func ht_recv_action_ba_addba_request;
static ieee80211_recv_action_func ht_recv_action_ba_addba_response;
static ieee80211_recv_action_func ht_recv_action_ba_delba;
static ieee80211_recv_action_func ht_recv_action_ht_mimopwrsave;
static ieee80211_recv_action_func ht_recv_action_ht_txchwidth;
static ieee80211_send_action_func ht_send_action_ba_addba;
static ieee80211_send_action_func ht_send_action_ba_delba;
static ieee80211_send_action_func ht_send_action_ht_txchwidth;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
ieee80211_ht_init(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
{
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
/*
* Setup HT parameters that depends on the clock frequency.
*/
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
#ifdef IEEE80211_AMPDU_AGE
ieee80211_ampdu_age = msecs_to_ticks(500);
#endif
ieee80211_addba_timeout = msecs_to_ticks(250);
ieee80211_addba_backoff = msecs_to_ticks(10*1000);
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
ieee80211_bar_timeout = msecs_to_ticks(250);
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
/*
* Register action frame handlers.
*/
ieee80211_recv_action_register(IEEE80211_ACTION_CAT_BA,
IEEE80211_ACTION_BA_ADDBA_REQUEST, ht_recv_action_ba_addba_request);
ieee80211_recv_action_register(IEEE80211_ACTION_CAT_BA,
IEEE80211_ACTION_BA_ADDBA_RESPONSE, ht_recv_action_ba_addba_response);
ieee80211_recv_action_register(IEEE80211_ACTION_CAT_BA,
IEEE80211_ACTION_BA_DELBA, ht_recv_action_ba_delba);
ieee80211_recv_action_register(IEEE80211_ACTION_CAT_HT,
IEEE80211_ACTION_HT_MIMOPWRSAVE, ht_recv_action_ht_mimopwrsave);
ieee80211_recv_action_register(IEEE80211_ACTION_CAT_HT,
IEEE80211_ACTION_HT_TXCHWIDTH, ht_recv_action_ht_txchwidth);
ieee80211_send_action_register(IEEE80211_ACTION_CAT_BA,
IEEE80211_ACTION_BA_ADDBA_REQUEST, ht_send_action_ba_addba);
ieee80211_send_action_register(IEEE80211_ACTION_CAT_BA,
IEEE80211_ACTION_BA_ADDBA_RESPONSE, ht_send_action_ba_addba);
ieee80211_send_action_register(IEEE80211_ACTION_CAT_BA,
IEEE80211_ACTION_BA_DELBA, ht_send_action_ba_delba);
ieee80211_send_action_register(IEEE80211_ACTION_CAT_HT,
IEEE80211_ACTION_HT_TXCHWIDTH, ht_send_action_ht_txchwidth);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
}
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
SYSINIT(wlan_ht, SI_SUB_DRIVERS, SI_ORDER_FIRST, ieee80211_ht_init, 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
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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 ieee80211_ampdu_enable(struct ieee80211_node *ni,
struct ieee80211_tx_ampdu *tap);
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 ieee80211_addba_request(struct ieee80211_node *ni,
struct ieee80211_tx_ampdu *tap,
int dialogtoken, int baparamset, int batimeout);
static int ieee80211_addba_response(struct ieee80211_node *ni,
struct ieee80211_tx_ampdu *tap,
int code, int baparamset, int batimeout);
static void ieee80211_addba_stop(struct ieee80211_node *ni,
struct ieee80211_tx_ampdu *tap);
Add a callback for ADDBA response timeouts. TX for the given TID needs to be paused during ADDBA requests (and unpaused once the session is established.) Since net80211 currently doesn't implement software aggregation, if this pause/unpause is done in the driver (as it is in my development branch) then it will need to be unpaused both on ADDBA response and on ADDBA timeout. This callback allows the driver to unpause TX for the relevant TID. Reviewed by: bschmidt
2011-06-20 11:46:03 +00:00
static void null_addba_response_timeout(struct ieee80211_node *ni,
struct ieee80211_tx_ampdu *tap);
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
static void ieee80211_bar_response(struct ieee80211_node *ni,
struct ieee80211_tx_ampdu *tap, int status);
static void ampdu_tx_stop(struct ieee80211_tx_ampdu *tap);
static void bar_stop_timer(struct ieee80211_tx_ampdu *tap);
allow drivers to hook ampdu rx start/stop
2009-04-26 22:54:51 +00:00
static int ampdu_rx_start(struct ieee80211_node *, struct ieee80211_rx_ampdu *,
int baparamset, int batimeout, int baseqctl);
static void ampdu_rx_stop(struct ieee80211_node *, struct ieee80211_rx_ampdu *);
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
ieee80211_ht_attach(struct ieee80211com *ic)
{
/* setup default aggregation policy */
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
ic->ic_recv_action = ieee80211_recv_action;
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_send_action = ieee80211_send_action;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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_ampdu_enable = ieee80211_ampdu_enable;
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_addba_request = ieee80211_addba_request;
ic->ic_addba_response = ieee80211_addba_response;
Add a callback for ADDBA response timeouts. TX for the given TID needs to be paused during ADDBA requests (and unpaused once the session is established.) Since net80211 currently doesn't implement software aggregation, if this pause/unpause is done in the driver (as it is in my development branch) then it will need to be unpaused both on ADDBA response and on ADDBA timeout. This callback allows the driver to unpause TX for the relevant TID. Reviewed by: bschmidt
2011-06-20 11:46:03 +00:00
ic->ic_addba_response_timeout = null_addba_response_timeout;
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_addba_stop = ieee80211_addba_stop;
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
ic->ic_bar_response = ieee80211_bar_response;
allow drivers to hook ampdu rx start/stop
2009-04-26 22:54:51 +00:00
ic->ic_ampdu_rx_start = ampdu_rx_start;
ic->ic_ampdu_rx_stop = ampdu_rx_stop;
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
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
ic->ic_htprotmode = IEEE80211_PROT_RTSCTS;
ic->ic_curhtprotmode = IEEE80211_HTINFO_OPMODE_PURE;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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
ieee80211_ht_detach(struct ieee80211com *ic)
{
}
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +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
void
ieee80211_ht_vattach(struct ieee80211vap *vap)
{
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +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
/* driver can override defaults */
vap->iv_ampdu_rxmax = IEEE80211_HTCAP_MAXRXAMPDU_8K;
vap->iv_ampdu_density = IEEE80211_HTCAP_MPDUDENSITY_NA;
vap->iv_ampdu_limit = vap->iv_ampdu_rxmax;
vap->iv_amsdu_limit = vap->iv_htcaps & IEEE80211_HTCAP_MAXAMSDU;
/* tx aggregation traffic thresholds */
vap->iv_ampdu_mintraffic[WME_AC_BK] = 128;
vap->iv_ampdu_mintraffic[WME_AC_BE] = 64;
vap->iv_ampdu_mintraffic[WME_AC_VO] = 32;
vap->iv_ampdu_mintraffic[WME_AC_VI] = 32;
if (vap->iv_htcaps & IEEE80211_HTC_HT) {
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
/*
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
* Device is HT capable; enable all HT-related
* facilities by default.
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
* XXX these choices may be too aggressive.
*/
iv_flags_ext is full, make room by moving HT-related flags to a new iv_flags_ht word
2009-06-07 22:00:22 +00:00
vap->iv_flags_ht |= IEEE80211_FHT_HT
| IEEE80211_FHT_HTCOMPAT
;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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_htcaps & IEEE80211_HTCAP_SHORTGI20)
iv_flags_ext is full, make room by moving HT-related flags to a new iv_flags_ht word
2009-06-07 22:00:22 +00:00
vap->iv_flags_ht |= IEEE80211_FHT_SHORTGI20;
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
/* XXX infer from channel 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
if (vap->iv_htcaps & IEEE80211_HTCAP_CHWIDTH40) {
iv_flags_ext is full, make room by moving HT-related flags to a new iv_flags_ht word
2009-06-07 22:00:22 +00:00
vap->iv_flags_ht |= IEEE80211_FHT_USEHT40;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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_htcaps & IEEE80211_HTCAP_SHORTGI40)
iv_flags_ext is full, make room by moving HT-related flags to a new iv_flags_ht word
2009-06-07 22:00:22 +00:00
vap->iv_flags_ht |= IEEE80211_FHT_SHORTGI40;
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
}
RIFS support; needs driver callback for dynamic state change
2008-09-22 00:10:22 +00:00
/* enable RIFS if capable */
if (vap->iv_htcaps & IEEE80211_HTC_RIFS)
iv_flags_ext is full, make room by moving HT-related flags to a new iv_flags_ht word
2009-06-07 22:00:22 +00:00
vap->iv_flags_ht |= IEEE80211_FHT_RIFS;
RIFS support; needs driver callback for dynamic state change
2008-09-22 00:10:22 +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
/* NB: A-MPDU and A-MSDU rx are mandated, these are tx only */
iv_flags_ext is full, make room by moving HT-related flags to a new iv_flags_ht word
2009-06-07 22:00:22 +00:00
vap->iv_flags_ht |= IEEE80211_FHT_AMPDU_RX;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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_htcaps & IEEE80211_HTC_AMPDU)
iv_flags_ext is full, make room by moving HT-related flags to a new iv_flags_ht word
2009-06-07 22:00:22 +00:00
vap->iv_flags_ht |= IEEE80211_FHT_AMPDU_TX;
vap->iv_flags_ht |= IEEE80211_FHT_AMSDU_RX;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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_htcaps & IEEE80211_HTC_AMSDU)
iv_flags_ext is full, make room by moving HT-related flags to a new iv_flags_ht word
2009-06-07 22:00:22 +00:00
vap->iv_flags_ht |= IEEE80211_FHT_AMSDU_TX;
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
/* NB: disable default legacy WDS, too many issues right now */
if (vap->iv_flags_ext & IEEE80211_FEXT_WDSLEGACY)
iv_flags_ext is full, make room by moving HT-related flags to a new iv_flags_ht word
2009-06-07 22:00:22 +00:00
vap->iv_flags_ht &= ~IEEE80211_FHT_HT;
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
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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_ht_vdetach(struct ieee80211vap *vap)
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
{
}
Change the way HT capatibilities are announced. Get rid of the assumption that every device is capable of 40MHz, SGI and 2 spartial streams. Instead of printing, in the worst case, 8 times 76 MCS rates, print logically connect ranges and the support RX/TX streams. A device without 40MHz and SGI support looks like: ath0: 2T2R ath0: 11na MCS 20Mhz ath0: MCS 0-7: 6.5Mbps - 65Mbps ath0: MCS 8-15: 13Mbps - 130Mbps ath0: 11ng MCS 20Mhz ath0: MCS 0-7: 6.5Mbps - 65Mbps ath0: MCS 8-15: 13Mbps - 130Mbps
2011-03-13 11:45:58 +00:00
static int
Fix some net80211 enum nits: - ic_vap_create() uses an ieee80211_opmode argument - ieee80211_rate2media() takes an ieee80211_phymode argument - ieee80211_plcp2rate() takes an ieee80211_phytype argument - cast to enum ieee80211_protmode and ieee80211_roamingmode to silence compiler warnings Submitted by: arundel@
2011-12-17 10:23:17 +00:00
ht_getrate(struct ieee80211com *ic, int index, enum ieee80211_phymode mode,
int ratetype)
Change the way HT capatibilities are announced. Get rid of the assumption that every device is capable of 40MHz, SGI and 2 spartial streams. Instead of printing, in the worst case, 8 times 76 MCS rates, print logically connect ranges and the support RX/TX streams. A device without 40MHz and SGI support looks like: ath0: 2T2R ath0: 11na MCS 20Mhz ath0: MCS 0-7: 6.5Mbps - 65Mbps ath0: MCS 8-15: 13Mbps - 130Mbps ath0: 11ng MCS 20Mhz ath0: MCS 0-7: 6.5Mbps - 65Mbps ath0: MCS 8-15: 13Mbps - 130Mbps
2011-03-13 11:45:58 +00:00
{
int mword, rate;
mword = ieee80211_rate2media(ic, index | IEEE80211_RATE_MCS, mode);
if (IFM_SUBTYPE(mword) != IFM_IEEE80211_MCS)
return (0);
switch (ratetype) {
case 0:
rate = ieee80211_htrates[index].ht20_rate_800ns;
break;
case 1:
rate = ieee80211_htrates[index].ht20_rate_400ns;
break;
case 2:
rate = ieee80211_htrates[index].ht40_rate_800ns;
break;
default:
rate = ieee80211_htrates[index].ht40_rate_400ns;
break;
}
return (rate);
}
static struct printranges {
int minmcs;
int maxmcs;
int txstream;
int ratetype;
int htcapflags;
} ranges[] = {
{ 0, 7, 1, 0, 0 },
{ 8, 15, 2, 0, 0 },
{ 16, 23, 3, 0, 0 },
{ 24, 31, 4, 0, 0 },
{ 32, 0, 1, 2, IEEE80211_HTC_TXMCS32 },
{ 33, 38, 2, 0, IEEE80211_HTC_TXUNEQUAL },
{ 39, 52, 3, 0, IEEE80211_HTC_TXUNEQUAL },
{ 53, 76, 4, 0, IEEE80211_HTC_TXUNEQUAL },
{ 0, 0, 0, 0, 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 void
Fix some net80211 enum nits: - ic_vap_create() uses an ieee80211_opmode argument - ieee80211_rate2media() takes an ieee80211_phymode argument - ieee80211_plcp2rate() takes an ieee80211_phytype argument - cast to enum ieee80211_protmode and ieee80211_roamingmode to silence compiler warnings Submitted by: arundel@
2011-12-17 10:23:17 +00:00
ht_rateprint(struct ieee80211com *ic, enum ieee80211_phymode mode, int ratetype)
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
{
Change the way HT capatibilities are announced. Get rid of the assumption that every device is capable of 40MHz, SGI and 2 spartial streams. Instead of printing, in the worst case, 8 times 76 MCS rates, print logically connect ranges and the support RX/TX streams. A device without 40MHz and SGI support looks like: ath0: 2T2R ath0: 11na MCS 20Mhz ath0: MCS 0-7: 6.5Mbps - 65Mbps ath0: MCS 8-15: 13Mbps - 130Mbps ath0: 11ng MCS 20Mhz ath0: MCS 0-7: 6.5Mbps - 65Mbps ath0: MCS 8-15: 13Mbps - 130Mbps
2011-03-13 11:45:58 +00:00
struct ifnet *ifp = ic->ic_ifp;
int minrate, maxrate;
struct printranges *range;
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
Change the way HT capatibilities are announced. Get rid of the assumption that every device is capable of 40MHz, SGI and 2 spartial streams. Instead of printing, in the worst case, 8 times 76 MCS rates, print logically connect ranges and the support RX/TX streams. A device without 40MHz and SGI support looks like: ath0: 2T2R ath0: 11na MCS 20Mhz ath0: MCS 0-7: 6.5Mbps - 65Mbps ath0: MCS 8-15: 13Mbps - 130Mbps ath0: 11ng MCS 20Mhz ath0: MCS 0-7: 6.5Mbps - 65Mbps ath0: MCS 8-15: 13Mbps - 130Mbps
2011-03-13 11:45:58 +00:00
for (range = ranges; range->txstream != 0; range++) {
if (ic->ic_txstream < range->txstream)
continue;
if (range->htcapflags &&
(ic->ic_htcaps & range->htcapflags) == 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
continue;
Change the way HT capatibilities are announced. Get rid of the assumption that every device is capable of 40MHz, SGI and 2 spartial streams. Instead of printing, in the worst case, 8 times 76 MCS rates, print logically connect ranges and the support RX/TX streams. A device without 40MHz and SGI support looks like: ath0: 2T2R ath0: 11na MCS 20Mhz ath0: MCS 0-7: 6.5Mbps - 65Mbps ath0: MCS 8-15: 13Mbps - 130Mbps ath0: 11ng MCS 20Mhz ath0: MCS 0-7: 6.5Mbps - 65Mbps ath0: MCS 8-15: 13Mbps - 130Mbps
2011-03-13 11:45:58 +00:00
if (ratetype < range->ratetype)
continue;
minrate = ht_getrate(ic, range->minmcs, mode, ratetype);
maxrate = ht_getrate(ic, range->maxmcs, mode, ratetype);
if (range->maxmcs) {
if_printf(ifp, "MCS %d-%d: %d%sMbps - %d%sMbps\n",
range->minmcs, range->maxmcs,
minrate/2, ((minrate & 0x1) != 0 ? ".5" : ""),
maxrate/2, ((maxrate & 0x1) != 0 ? ".5" : ""));
} else {
if_printf(ifp, "MCS %d: %d%sMbps\n", range->minmcs,
minrate/2, ((minrate & 0x1) != 0 ? ".5" : ""));
Fix a couple of bugs with 802.11n: o Process the BAR frame on the adhoc, mesh and sta modes o Fix the format of the ADDBA reply frame o Fix references to the spec section numbers Also, print the all the MCS rates in bootverbose. Sponsored by: iXsystems, Inc. Obtained from: //depot/user/rpaulo/80211n/...
2010-03-18 11:06:38 +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
}
}
Fix a couple of bugs with 802.11n: o Process the BAR frame on the adhoc, mesh and sta modes o Fix the format of the ADDBA reply frame o Fix references to the spec section numbers Also, print the all the MCS rates in bootverbose. Sponsored by: iXsystems, Inc. Obtained from: //depot/user/rpaulo/80211n/...
2010-03-18 11:06:38 +00:00
static void
Fix some net80211 enum nits: - ic_vap_create() uses an ieee80211_opmode argument - ieee80211_rate2media() takes an ieee80211_phymode argument - ieee80211_plcp2rate() takes an ieee80211_phytype argument - cast to enum ieee80211_protmode and ieee80211_roamingmode to silence compiler warnings Submitted by: arundel@
2011-12-17 10:23:17 +00:00
ht_announce(struct ieee80211com *ic, enum ieee80211_phymode mode)
Fix a couple of bugs with 802.11n: o Process the BAR frame on the adhoc, mesh and sta modes o Fix the format of the ADDBA reply frame o Fix references to the spec section numbers Also, print the all the MCS rates in bootverbose. Sponsored by: iXsystems, Inc. Obtained from: //depot/user/rpaulo/80211n/...
2010-03-18 11:06:38 +00:00
{
struct ifnet *ifp = ic->ic_ifp;
const char *modestr = ieee80211_phymode_name[mode];
Change the way HT capatibilities are announced. Get rid of the assumption that every device is capable of 40MHz, SGI and 2 spartial streams. Instead of printing, in the worst case, 8 times 76 MCS rates, print logically connect ranges and the support RX/TX streams. A device without 40MHz and SGI support looks like: ath0: 2T2R ath0: 11na MCS 20Mhz ath0: MCS 0-7: 6.5Mbps - 65Mbps ath0: MCS 8-15: 13Mbps - 130Mbps ath0: 11ng MCS 20Mhz ath0: MCS 0-7: 6.5Mbps - 65Mbps ath0: MCS 8-15: 13Mbps - 130Mbps
2011-03-13 11:45:58 +00:00
Constantly use MHz instead of Mhz. Pointed out by: N.J. Mann <njm at njm.me.uk>
2011-03-13 13:05:50 +00:00
if_printf(ifp, "%s MCS 20MHz\n", modestr);
Change the way HT capatibilities are announced. Get rid of the assumption that every device is capable of 40MHz, SGI and 2 spartial streams. Instead of printing, in the worst case, 8 times 76 MCS rates, print logically connect ranges and the support RX/TX streams. A device without 40MHz and SGI support looks like: ath0: 2T2R ath0: 11na MCS 20Mhz ath0: MCS 0-7: 6.5Mbps - 65Mbps ath0: MCS 8-15: 13Mbps - 130Mbps ath0: 11ng MCS 20Mhz ath0: MCS 0-7: 6.5Mbps - 65Mbps ath0: MCS 8-15: 13Mbps - 130Mbps
2011-03-13 11:45:58 +00:00
ht_rateprint(ic, mode, 0);
if (ic->ic_htcaps & IEEE80211_HTCAP_SHORTGI20) {
Constantly use MHz instead of Mhz. Pointed out by: N.J. Mann <njm at njm.me.uk>
2011-03-13 13:05:50 +00:00
if_printf(ifp, "%s MCS 20MHz SGI\n", modestr);
Change the way HT capatibilities are announced. Get rid of the assumption that every device is capable of 40MHz, SGI and 2 spartial streams. Instead of printing, in the worst case, 8 times 76 MCS rates, print logically connect ranges and the support RX/TX streams. A device without 40MHz and SGI support looks like: ath0: 2T2R ath0: 11na MCS 20Mhz ath0: MCS 0-7: 6.5Mbps - 65Mbps ath0: MCS 8-15: 13Mbps - 130Mbps ath0: 11ng MCS 20Mhz ath0: MCS 0-7: 6.5Mbps - 65Mbps ath0: MCS 8-15: 13Mbps - 130Mbps
2011-03-13 11:45:58 +00:00
ht_rateprint(ic, mode, 1);
}
if (ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40) {
Constantly use MHz instead of Mhz. Pointed out by: N.J. Mann <njm at njm.me.uk>
2011-03-13 13:05:50 +00:00
if_printf(ifp, "%s MCS 40MHz:\n", modestr);
Change the way HT capatibilities are announced. Get rid of the assumption that every device is capable of 40MHz, SGI and 2 spartial streams. Instead of printing, in the worst case, 8 times 76 MCS rates, print logically connect ranges and the support RX/TX streams. A device without 40MHz and SGI support looks like: ath0: 2T2R ath0: 11na MCS 20Mhz ath0: MCS 0-7: 6.5Mbps - 65Mbps ath0: MCS 8-15: 13Mbps - 130Mbps ath0: 11ng MCS 20Mhz ath0: MCS 0-7: 6.5Mbps - 65Mbps ath0: MCS 8-15: 13Mbps - 130Mbps
2011-03-13 11:45:58 +00:00
ht_rateprint(ic, mode, 2);
}
if ((ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40) &&
(ic->ic_htcaps & IEEE80211_HTCAP_SHORTGI40)) {
Constantly use MHz instead of Mhz. Pointed out by: N.J. Mann <njm at njm.me.uk>
2011-03-13 13:05:50 +00:00
if_printf(ifp, "%s MCS 40MHz SGI:\n", modestr);
Change the way HT capatibilities are announced. Get rid of the assumption that every device is capable of 40MHz, SGI and 2 spartial streams. Instead of printing, in the worst case, 8 times 76 MCS rates, print logically connect ranges and the support RX/TX streams. A device without 40MHz and SGI support looks like: ath0: 2T2R ath0: 11na MCS 20Mhz ath0: MCS 0-7: 6.5Mbps - 65Mbps ath0: MCS 8-15: 13Mbps - 130Mbps ath0: 11ng MCS 20Mhz ath0: MCS 0-7: 6.5Mbps - 65Mbps ath0: MCS 8-15: 13Mbps - 130Mbps
2011-03-13 11:45:58 +00:00
ht_rateprint(ic, mode, 3);
}
Fix a couple of bugs with 802.11n: o Process the BAR frame on the adhoc, mesh and sta modes o Fix the format of the ADDBA reply frame o Fix references to the spec section numbers Also, print the all the MCS rates in bootverbose. Sponsored by: iXsystems, Inc. Obtained from: //depot/user/rpaulo/80211n/...
2010-03-18 11:06:38 +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
void
ieee80211_ht_announce(struct ieee80211com *ic)
{
Change the way HT capatibilities are announced. Get rid of the assumption that every device is capable of 40MHz, SGI and 2 spartial streams. Instead of printing, in the worst case, 8 times 76 MCS rates, print logically connect ranges and the support RX/TX streams. A device without 40MHz and SGI support looks like: ath0: 2T2R ath0: 11na MCS 20Mhz ath0: MCS 0-7: 6.5Mbps - 65Mbps ath0: MCS 8-15: 13Mbps - 130Mbps ath0: 11ng MCS 20Mhz ath0: MCS 0-7: 6.5Mbps - 65Mbps ath0: MCS 8-15: 13Mbps - 130Mbps
2011-03-13 11:45:58 +00:00
struct ifnet *ifp = ic->ic_ifp;
if (isset(ic->ic_modecaps, IEEE80211_MODE_11NA) ||
isset(ic->ic_modecaps, IEEE80211_MODE_11NG))
if_printf(ifp, "%dT%dR\n", ic->ic_txstream, ic->ic_rxstream);
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 (isset(ic->ic_modecaps, IEEE80211_MODE_11NA))
Change the way HT capatibilities are announced. Get rid of the assumption that every device is capable of 40MHz, SGI and 2 spartial streams. Instead of printing, in the worst case, 8 times 76 MCS rates, print logically connect ranges and the support RX/TX streams. A device without 40MHz and SGI support looks like: ath0: 2T2R ath0: 11na MCS 20Mhz ath0: MCS 0-7: 6.5Mbps - 65Mbps ath0: MCS 8-15: 13Mbps - 130Mbps ath0: 11ng MCS 20Mhz ath0: MCS 0-7: 6.5Mbps - 65Mbps ath0: MCS 8-15: 13Mbps - 130Mbps
2011-03-13 11:45:58 +00:00
ht_announce(ic, IEEE80211_MODE_11NA);
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 (isset(ic->ic_modecaps, IEEE80211_MODE_11NG))
Change the way HT capatibilities are announced. Get rid of the assumption that every device is capable of 40MHz, SGI and 2 spartial streams. Instead of printing, in the worst case, 8 times 76 MCS rates, print logically connect ranges and the support RX/TX streams. A device without 40MHz and SGI support looks like: ath0: 2T2R ath0: 11na MCS 20Mhz ath0: MCS 0-7: 6.5Mbps - 65Mbps ath0: MCS 8-15: 13Mbps - 130Mbps ath0: 11ng MCS 20Mhz ath0: MCS 0-7: 6.5Mbps - 65Mbps ath0: MCS 8-15: 13Mbps - 130Mbps
2011-03-13 11:45:58 +00:00
ht_announce(ic, IEEE80211_MODE_11NG);
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
}
Honor device capabilities while initializing ni_htrates. Instead of hardcoding MCS0-15 generate the table dynamically, also restrict the MCS rates to our own capabilities while parsing a htcap element.
2011-03-13 12:16:23 +00:00
static struct ieee80211_htrateset htrateset;
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
const struct ieee80211_htrateset *
ieee80211_get_suphtrates(struct ieee80211com *ic,
Honor device capabilities while initializing ni_htrates. Instead of hardcoding MCS0-15 generate the table dynamically, also restrict the MCS rates to our own capabilities while parsing a htcap element.
2011-03-13 12:16:23 +00:00
const struct ieee80211_channel *c)
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
{
Honor device capabilities while initializing ni_htrates. Instead of hardcoding MCS0-15 generate the table dynamically, also restrict the MCS rates to our own capabilities while parsing a htcap element.
2011-03-13 12:16:23 +00:00
#define ADDRATE(x) do { \
htrateset.rs_rates[htrateset.rs_nrates] = x; \
htrateset.rs_nrates++; \
} while (0)
int i;
memset(&htrateset, 0, sizeof(struct ieee80211_htrateset));
for (i = 0; i < ic->ic_txstream * 8; i++)
ADDRATE(i);
if ((ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40) &&
(ic->ic_htcaps & IEEE80211_HTC_TXMCS32))
MCS32 equals 32, not 8*ic_txstream.
2012-01-02 16:02:30 +00:00
ADDRATE(32);
Honor device capabilities while initializing ni_htrates. Instead of hardcoding MCS0-15 generate the table dynamically, also restrict the MCS rates to our own capabilities while parsing a htcap element.
2011-03-13 12:16:23 +00:00
if (ic->ic_htcaps & IEEE80211_HTC_TXUNEQUAL) {
if (ic->ic_txstream >= 2) {
for (i = 33; i <= 38; i++)
ADDRATE(i);
}
if (ic->ic_txstream >= 3) {
for (i = 39; i <= 52; i++)
ADDRATE(i);
}
if (ic->ic_txstream == 4) {
for (i = 53; i <= 76; i++)
ADDRATE(i);
}
}
return &htrateset;
#undef ADDRATE
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
}
/*
* Receive processing.
*/
/*
* Decap the encapsulated A-MSDU frames and dispatch all but
* the last for delivery. The last frame is returned for
* delivery via the normal path.
*/
struct mbuf *
ieee80211_decap_amsdu(struct ieee80211_node *ni, 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 ieee80211vap *vap = ni->ni_vap;
correct termination check doing amsdu de-aggregation MFC after: 3 days
2007-11-08 17:11:40 +00:00
int framelen;
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 *n;
/* discard 802.3 header inserted by ieee80211_decap */
m_adj(m, sizeof(struct ether_header));
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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_stats.is_amsdu_decap++;
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
for (;;) {
/*
* Decap the first frame, bust it apart from the
* remainder and deliver. We leave the last frame
* delivery to the caller (for consistency with other
* code paths, could also do it here).
*/
m = ieee80211_decap1(m, &framelen);
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
IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY,
correct termination check doing amsdu de-aggregation MFC after: 3 days
2007-11-08 17:11:40 +00:00
ni->ni_macaddr, "a-msdu", "%s", "decap failed");
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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_stats.is_amsdu_tooshort++;
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
return NULL;
}
correct termination check doing amsdu de-aggregation MFC after: 3 days
2007-11-08 17:11:40 +00:00
if (m->m_pkthdr.len == framelen)
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
break;
n = m_split(m, framelen, M_NOWAIT);
if (n == 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
IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY,
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_macaddr, "a-msdu",
"%s", "unable to split encapsulated frames");
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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_stats.is_amsdu_split++;
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(m); /* NB: must reclaim */
return 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
vap->iv_deliver_data(vap, ni, 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
/*
* Remove frame contents; each intermediate frame
* is required to be aligned to a 4-byte boundary.
*/
m = n;
m_adj(m, roundup2(framelen, 4) - framelen); /* padding */
}
return m; /* last delivered by caller */
}
/*
* Purge all frames in the A-MPDU re-order queue.
*/
static void
ampdu_rx_purge(struct ieee80211_rx_ampdu *rap)
{
struct mbuf *m;
int i;
for (i = 0; i < rap->rxa_wnd; i++) {
m = rap->rxa_m[i];
if (m != NULL) {
rap->rxa_m[i] = NULL;
rap->rxa_qbytes -= m->m_pkthdr.len;
m_freem(m);
if (--rap->rxa_qframes == 0)
break;
}
}
KASSERT(rap->rxa_qbytes == 0 && rap->rxa_qframes == 0,
("lost %u data, %u frames on ampdu rx q",
rap->rxa_qbytes, rap->rxa_qframes));
}
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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 A-MPDU rx/re-order processing for the specified TID.
*/
allow drivers to hook ampdu rx start/stop
2009-04-26 22:54:51 +00:00
static int
ampdu_rx_start(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap,
int baparamset, int batimeout, int baseqctl)
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
{
allow drivers to hook ampdu rx start/stop
2009-04-26 22:54:51 +00:00
int bufsiz = MS(baparamset, IEEE80211_BAPS_BUFSIZ);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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 (rap->rxa_flags & IEEE80211_AGGR_RUNNING) {
/*
* AMPDU previously setup and not terminated with a DELBA,
* flush the reorder q's in case anything remains.
*/
ampdu_rx_purge(rap);
}
memset(rap, 0, sizeof(*rap));
rap->rxa_wnd = (bufsiz == 0) ?
IEEE80211_AGGR_BAWMAX : min(bufsiz, IEEE80211_AGGR_BAWMAX);
allow drivers to hook ampdu rx start/stop
2009-04-26 22:54:51 +00:00
rap->rxa_start = MS(baseqctl, IEEE80211_BASEQ_START);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
rap->rxa_flags |= IEEE80211_AGGR_RUNNING | IEEE80211_AGGR_XCHGPEND;
allow drivers to hook ampdu rx start/stop
2009-04-26 22:54:51 +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
}
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
/*
* Stop A-MPDU rx processing for the specified TID.
*/
static void
allow drivers to hook ampdu rx start/stop
2009-04-26 22:54:51 +00:00
ampdu_rx_stop(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap)
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
{
Fix a couple of bugs with 802.11n: o Process the BAR frame on the adhoc, mesh and sta modes o Fix the format of the ADDBA reply frame o Fix references to the spec section numbers Also, print the all the MCS rates in bootverbose. Sponsored by: iXsystems, Inc. Obtained from: //depot/user/rpaulo/80211n/...
2010-03-18 11:06:38 +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
ampdu_rx_purge(rap);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
rap->rxa_flags &= ~(IEEE80211_AGGR_RUNNING | IEEE80211_AGGR_XCHGPEND);
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
}
/*
* Dispatch a frame from the A-MPDU reorder queue. The
* frame is fed back into ieee80211_input marked with an
Cleanup AMPDU handling: For receive: o explicitly tag rx frames w/ M_AMPDU instead of passing frames through the reorder processing according to the node having HT and the frame being QoS data o relax ieee80211_ampdu_reorder asserts to allow any frame to be passed in, unsuitable frames are returned to the caller for normal processing; this permits drivers that cannot inspect the PLCP to mark all data frames as potential ampdu candidates with only a small penalty o add M_AMPDU_MPDU to identify frames resubmitted from the reorder q For transmit: o tag aggregation candidates with M_AMPDU_MPDU o fix the QoS ack policy set in ampdu subframes; we only support immediate BA streams which should be marked for "normal ack" to get implicit block ack behaviour; interestingly certain vendor parts BA'd frames with the 11e BA ack policy set o do not assign a sequence # to aggregation candidates; this must be done when frames are submitted for transmit (NB: this can/will be handled better when aggregation is pulled up to net80211)
2008-09-21 23:00:19 +00:00
* M_AMPDU_MPDU flag so it doesn't come back to us (it also
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
* permits ieee80211_input to optimize re-processing).
*/
static __inline void
ampdu_dispatch(struct ieee80211_node *ni, struct mbuf *m)
{
Cleanup AMPDU handling: For receive: o explicitly tag rx frames w/ M_AMPDU instead of passing frames through the reorder processing according to the node having HT and the frame being QoS data o relax ieee80211_ampdu_reorder asserts to allow any frame to be passed in, unsuitable frames are returned to the caller for normal processing; this permits drivers that cannot inspect the PLCP to mark all data frames as potential ampdu candidates with only a small penalty o add M_AMPDU_MPDU to identify frames resubmitted from the reorder q For transmit: o tag aggregation candidates with M_AMPDU_MPDU o fix the QoS ack policy set in ampdu subframes; we only support immediate BA streams which should be marked for "normal ack" to get implicit block ack behaviour; interestingly certain vendor parts BA'd frames with the 11e BA ack policy set o do not assign a sequence # to aggregation candidates; this must be done when frames are submitted for transmit (NB: this can/will be handled better when aggregation is pulled up to net80211)
2008-09-21 23:00:19 +00:00
m->m_flags |= M_AMPDU_MPDU; /* bypass normal processing */
Overhaul monitor mode handling: o replace DLT_IEEE802_11 support in net80211 with DLT_IEEE802_11_RADIO and remove explicit bpf support from wireless drivers; drivers now use ieee80211_radiotap_attach to setup shared data structures that hold the radiotap header for each packet tx/rx o remove rx timestamp from the rx path; it was used only by the tdma support for debugging and was mostly useless due to it being 32-bits and mostly unavailable o track DLT_IEEE80211_RADIO bpf attachments and maintain per-vap and per-com state when there are active taps o track the number of monitor mode vaps o use bpf tap and monitor mode vap state to decide when to collect radiotap state and dispatch frames; drivers no longer explicitly directly check bpf state or use bpf calls to tap frames o handle radiotap state updates on channel change in net80211; drivers should not do this (unless they bypass net80211 which is almost always a mistake) o update various drivers to be more consistent/correct in handling radiotap o update ral to include TSF in radiotap'd frames o add promisc mode callback to wi Reviewed by: cbzimmer, rpaulo, thompsa
2009-05-20 20:00:40 +00:00
/* NB: rssi and noise are ignored w/ M_AMPDU_MPDU set */
(void) ieee80211_input(ni, m, 0, 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
}
/*
* Dispatch as many frames as possible from the re-order queue.
* Frames will always be "at the front"; we process all frames
* up to the first empty slot in the window. On completion we
* cleanup state if there are still pending frames in the current
* BA window. We assume the frame at slot 0 is already handled
* by the caller; we always start at slot 1.
*/
static void
ampdu_rx_dispatch(struct ieee80211_rx_ampdu *rap, 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;
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;
int i;
/* flush run of frames */
for (i = 1; i < rap->rxa_wnd; i++) {
m = rap->rxa_m[i];
if (m == NULL)
break;
rap->rxa_m[i] = NULL;
rap->rxa_qbytes -= m->m_pkthdr.len;
rap->rxa_qframes--;
ampdu_dispatch(ni, m);
}
/*
* If frames remain, copy the mbuf pointers down so
* they correspond to the offsets in the new window.
*/
if (rap->rxa_qframes != 0) {
int n = rap->rxa_qframes, j;
for (j = i+1; j < rap->rxa_wnd; j++) {
if (rap->rxa_m[j] != NULL) {
rap->rxa_m[j-i] = rap->rxa_m[j];
rap->rxa_m[j] = NULL;
if (--n == 0)
break;
}
}
KASSERT(n == 0, ("lost %d frames", 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
vap->iv_stats.is_ampdu_rx_copy += rap->rxa_qframes;
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
}
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
/*
* Adjust the start of the BA window to
* reflect the frames just dispatched.
*/
rap->rxa_start = IEEE80211_SEQ_ADD(rap->rxa_start, i);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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_stats.is_ampdu_rx_oor += 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
}
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
#ifdef IEEE80211_AMPDU_AGE
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
/*
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
* Dispatch all frames in the A-MPDU re-order queue.
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
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
ampdu_rx_flush(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap)
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
struct ieee80211vap *vap = ni->ni_vap;
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;
int i;
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
for (i = 0; i < rap->rxa_wnd; 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
m = rap->rxa_m[i];
if (m == NULL)
continue;
rap->rxa_m[i] = NULL;
rap->rxa_qbytes -= m->m_pkthdr.len;
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
rap->rxa_qframes--;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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_stats.is_ampdu_rx_oor++;
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +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
ampdu_dispatch(ni, m);
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
if (rap->rxa_qframes == 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
break;
}
}
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
#endif /* IEEE80211_AMPDU_AGE */
/*
* Dispatch all frames in the A-MPDU re-order queue
* preceding the specified sequence number. This logic
* handles window moves due to a received MSDU or BAR.
*/
static void
ampdu_rx_flush_upto(struct ieee80211_node *ni,
struct ieee80211_rx_ampdu *rap, ieee80211_seq winstart)
{
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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;
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
struct mbuf *m;
ieee80211_seq seqno;
int i;
/*
* Flush any complete MSDU's with a sequence number lower
* than winstart. Gaps may exist. Note that we may actually
* dispatch frames past winstart if a run continues; this is
* an optimization that avoids having to do a separate pass
* to dispatch frames after moving the BA window start.
*/
seqno = rap->rxa_start;
for (i = 0; i < rap->rxa_wnd; i++) {
m = rap->rxa_m[i];
if (m != NULL) {
rap->rxa_m[i] = NULL;
rap->rxa_qbytes -= m->m_pkthdr.len;
rap->rxa_qframes--;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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_stats.is_ampdu_rx_oor++;
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
ampdu_dispatch(ni, m);
} else {
if (!IEEE80211_SEQ_BA_BEFORE(seqno, winstart))
break;
}
seqno = IEEE80211_SEQ_INC(seqno);
}
/*
* If frames remain, copy the mbuf pointers down so
* they correspond to the offsets in the new window.
*/
if (rap->rxa_qframes != 0) {
int n = rap->rxa_qframes, j;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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: this loop assumes i > 0 and/or rxa_m[0] is NULL */
KASSERT(rap->rxa_m[0] == NULL,
("%s: BA window slot 0 occupied", __func__));
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
for (j = i+1; j < rap->rxa_wnd; j++) {
if (rap->rxa_m[j] != NULL) {
rap->rxa_m[j-i] = rap->rxa_m[j];
rap->rxa_m[j] = NULL;
if (--n == 0)
break;
}
}
KASSERT(n == 0, ("%s: lost %d frames, qframes %d off %d "
"BA win <%d:%d> winstart %d",
__func__, n, rap->rxa_qframes, i, rap->rxa_start,
IEEE80211_SEQ_ADD(rap->rxa_start, rap->rxa_wnd-1),
winstart));
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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_stats.is_ampdu_rx_copy += rap->rxa_qframes;
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
}
/*
* Move the start of the BA window; we use the
* sequence number of the last MSDU that was
* passed up the stack+1 or winstart if stopped on
* a gap in the reorder buffer.
*/
rap->rxa_start = seqno;
}
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
/*
* Process a received QoS data frame for an HT station. Handle
* A-MPDU reordering: if this frame is received out of order
* and falls within the BA window hold onto it. Otherwise if
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
* this frame completes a run, flush any pending frames. We
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
* return 1 if the frame is consumed. A 0 is returned if
* the frame should be processed normally by the caller.
*/
int
ieee80211_ampdu_reorder(struct ieee80211_node *ni, struct mbuf *m)
{
#define IEEE80211_FC0_QOSDATA \
(IEEE80211_FC0_TYPE_DATA|IEEE80211_FC0_SUBTYPE_QOS|IEEE80211_FC0_VERSION_0)
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
#define PROCESS 0 /* caller should process frame */
#define CONSUMED 1 /* frame consumed, caller does nothing */
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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;
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 ieee80211_qosframe *wh;
struct ieee80211_rx_ampdu *rap;
ieee80211_seq rxseq;
uint8_t tid;
int off;
Cleanup AMPDU handling: For receive: o explicitly tag rx frames w/ M_AMPDU instead of passing frames through the reorder processing according to the node having HT and the frame being QoS data o relax ieee80211_ampdu_reorder asserts to allow any frame to be passed in, unsuitable frames are returned to the caller for normal processing; this permits drivers that cannot inspect the PLCP to mark all data frames as potential ampdu candidates with only a small penalty o add M_AMPDU_MPDU to identify frames resubmitted from the reorder q For transmit: o tag aggregation candidates with M_AMPDU_MPDU o fix the QoS ack policy set in ampdu subframes; we only support immediate BA streams which should be marked for "normal ack" to get implicit block ack behaviour; interestingly certain vendor parts BA'd frames with the 11e BA ack policy set o do not assign a sequence # to aggregation candidates; this must be done when frames are submitted for transmit (NB: this can/will be handled better when aggregation is pulled up to net80211)
2008-09-21 23:00:19 +00:00
KASSERT((m->m_flags & (M_AMPDU | M_AMPDU_MPDU)) == M_AMPDU,
("!a-mpdu or already re-ordered, flags 0x%x", m->m_flags));
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
KASSERT(ni->ni_flags & IEEE80211_NODE_HT, ("not an HT sta"));
/* NB: m_len known to be sufficient */
wh = mtod(m, struct ieee80211_qosframe *);
Cleanup AMPDU handling: For receive: o explicitly tag rx frames w/ M_AMPDU instead of passing frames through the reorder processing according to the node having HT and the frame being QoS data o relax ieee80211_ampdu_reorder asserts to allow any frame to be passed in, unsuitable frames are returned to the caller for normal processing; this permits drivers that cannot inspect the PLCP to mark all data frames as potential ampdu candidates with only a small penalty o add M_AMPDU_MPDU to identify frames resubmitted from the reorder q For transmit: o tag aggregation candidates with M_AMPDU_MPDU o fix the QoS ack policy set in ampdu subframes; we only support immediate BA streams which should be marked for "normal ack" to get implicit block ack behaviour; interestingly certain vendor parts BA'd frames with the 11e BA ack policy set o do not assign a sequence # to aggregation candidates; this must be done when frames are submitted for transmit (NB: this can/will be handled better when aggregation is pulled up to net80211)
2008-09-21 23:00:19 +00:00
if (wh->i_fc[0] != IEEE80211_FC0_QOSDATA) {
/*
* Not QoS data, shouldn't get here but just
* return it to the caller for processing.
*/
return PROCESS;
}
Correct ieee80211_gettid: o don't increment extracted tid, this was a vestige of IEEE80211_NONQOS_TID being defined as 0 (w/ real tid's +1) o handle 4-address frames (add IEEE80211_IS_DSTODS to check if an 802.11 header is DSTODS) Submitted by: cbzimmer Reviewed by: avatar
2009-06-09 16:32:07 +00:00
if (IEEE80211_IS_DSTODS(wh))
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
tid = ((struct ieee80211_qosframe_addr4 *)wh)->i_qos[0];
else
tid = wh->i_qos[0];
tid &= IEEE80211_QOS_TID;
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
rap = &ni->ni_rx_ampdu[tid];
if ((rap->rxa_flags & IEEE80211_AGGR_XCHGPEND) == 0) {
/*
* No ADDBA request yet, don't touch.
*/
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
return PROCESS;
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
}
don't do ampdu reordering of fragments; they should never happen
2008-09-06 17:31:55 +00:00
rxseq = le16toh(*(uint16_t *)wh->i_seq);
if ((rxseq & IEEE80211_SEQ_FRAG_MASK) != 0) {
/*
* Fragments are not allowed; toss.
*/
IEEE80211_DISCARD_MAC(vap,
IEEE80211_MSG_INPUT | IEEE80211_MSG_11N, ni->ni_macaddr,
"A-MPDU", "fragment, rxseq 0x%x tid %u%s", rxseq, tid,
wh->i_fc[1] & IEEE80211_FC1_RETRY ? " (retransmit)" : "");
vap->iv_stats.is_ampdu_rx_drop++;
IEEE80211_NODE_STAT(ni, rx_drop);
m_freem(m);
return CONSUMED;
}
rxseq >>= IEEE80211_SEQ_SEQ_SHIFT;
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
rap->rxa_nframes++;
again:
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 (rxseq == rap->rxa_start) {
/*
* First frame in window.
*/
if (rap->rxa_qframes != 0) {
/*
* Dispatch as many packets as we can.
*/
KASSERT(rap->rxa_m[0] == NULL, ("unexpected dup"));
ampdu_dispatch(ni, m);
ampdu_rx_dispatch(rap, ni);
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
return CONSUMED;
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
} else {
/*
* In order; advance window and notify
* caller to dispatch directly.
*/
rap->rxa_start = IEEE80211_SEQ_INC(rxseq);
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
return PROCESS;
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
}
}
/*
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
* Frame is out of order; store if in the BA window.
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
*/
/* calculate offset in BA window */
off = IEEE80211_SEQ_SUB(rxseq, rap->rxa_start);
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
if (off < rap->rxa_wnd) {
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
/*
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
* Common case (hopefully): in the BA window.
Fix a couple of bugs with 802.11n: o Process the BAR frame on the adhoc, mesh and sta modes o Fix the format of the ADDBA reply frame o Fix references to the spec section numbers Also, print the all the MCS rates in bootverbose. Sponsored by: iXsystems, Inc. Obtained from: //depot/user/rpaulo/80211n/...
2010-03-18 11:06:38 +00:00
* Sec 9.10.7.6.2 a) (p.137)
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
*/
#ifdef IEEE80211_AMPDU_AGE
/*
* Check for frames sitting too long in the reorder queue.
* This should only ever happen if frames are not delivered
* without the sender otherwise notifying us (e.g. with a
* BAR to move the window). Typically this happens because
* of vendor bugs that cause the sequence number to jump.
* When this happens we get a gap in the reorder queue that
* leaves frame sitting on the queue until they get pushed
* out due to window moves. When the vendor does not send
* BAR this move only happens due to explicit packet sends
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
*
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
* NB: we only track the time of the oldest frame in the
* reorder q; this means that if we flush we might push
* frames that still "new"; if this happens then subsequent
* frames will result in BA window moves which cost something
* but is still better than a big throughput dip.
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 (rap->rxa_qframes != 0) {
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
/* XXX honor batimeout? */
if (ticks - rap->rxa_age > ieee80211_ampdu_age) {
/*
* Too long since we received the first
* frame; flush the reorder buffer.
*/
if (rap->rxa_qframes != 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
vap->iv_stats.is_ampdu_rx_age +=
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
rap->rxa_qframes;
ampdu_rx_flush(ni, rap);
}
rap->rxa_start = IEEE80211_SEQ_INC(rxseq);
return PROCESS;
}
} 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
/*
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
* First frame, start aging timer.
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
*/
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
rap->rxa_age = ticks;
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
}
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
#endif /* IEEE80211_AMPDU_AGE */
/* save packet */
if (rap->rxa_m[off] == NULL) {
rap->rxa_m[off] = m;
rap->rxa_qframes++;
rap->rxa_qbytes += m->m_pkthdr.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
vap->iv_stats.is_ampdu_rx_reorder++;
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +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
IEEE80211_DISCARD_MAC(vap,
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
IEEE80211_MSG_INPUT | IEEE80211_MSG_11N,
ni->ni_macaddr, "a-mpdu duplicate",
"seqno %u tid %u BA win <%u:%u>",
rxseq, tid, rap->rxa_start,
IEEE80211_SEQ_ADD(rap->rxa_start, rap->rxa_wnd-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
vap->iv_stats.is_rx_dup++;
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
IEEE80211_NODE_STAT(ni, rx_dup);
m_freem(m);
}
return CONSUMED;
}
if (off < IEEE80211_SEQ_BA_RANGE) {
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
/*
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
* Outside the BA window, but within range;
* flush the reorder q and move the window.
Fix a couple of bugs with 802.11n: o Process the BAR frame on the adhoc, mesh and sta modes o Fix the format of the ADDBA reply frame o Fix references to the spec section numbers Also, print the all the MCS rates in bootverbose. Sponsored by: iXsystems, Inc. Obtained from: //depot/user/rpaulo/80211n/...
2010-03-18 11:06:38 +00:00
* Sec 9.10.7.6.2 b) (p.138)
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
IEEE80211_NOTE(vap, IEEE80211_MSG_11N, ni,
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
"move BA win <%u:%u> (%u frames) rxseq %u tid %u",
rap->rxa_start,
IEEE80211_SEQ_ADD(rap->rxa_start, rap->rxa_wnd-1),
rap->rxa_qframes, rxseq, tid);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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_stats.is_ampdu_rx_move++;
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
/*
* The spec says to flush frames up to but not including:
* WinStart_B = rxseq - rap->rxa_wnd + 1
* Then insert the frame or notify the caller to process
* it immediately. We can safely do this by just starting
* over again because we know the frame will now be within
* the BA window.
*/
/* NB: rxa_wnd known to be >0 */
ampdu_rx_flush_upto(ni, rap,
IEEE80211_SEQ_SUB(rxseq, rap->rxa_wnd-1));
goto again;
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
} else {
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
/*
* Outside the BA window and out of range; toss.
Fix a couple of bugs with 802.11n: o Process the BAR frame on the adhoc, mesh and sta modes o Fix the format of the ADDBA reply frame o Fix references to the spec section numbers Also, print the all the MCS rates in bootverbose. Sponsored by: iXsystems, Inc. Obtained from: //depot/user/rpaulo/80211n/...
2010-03-18 11:06:38 +00:00
* Sec 9.10.7.6.2 c) (p.138)
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +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
IEEE80211_DISCARD_MAC(vap,
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
IEEE80211_MSG_INPUT | IEEE80211_MSG_11N, ni->ni_macaddr,
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
"MPDU", "BA win <%u:%u> (%u frames) rxseq %u tid %u%s",
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
rap->rxa_start,
IEEE80211_SEQ_ADD(rap->rxa_start, rap->rxa_wnd-1),
rap->rxa_qframes, rxseq, tid,
wh->i_fc[1] & IEEE80211_FC1_RETRY ? " (retransmit)" : "");
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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_stats.is_ampdu_rx_drop++;
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
IEEE80211_NODE_STAT(ni, rx_drop);
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(m);
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
return CONSUMED;
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
}
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
#undef CONSUMED
#undef PROCESS
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
#undef IEEE80211_FC0_QOSDATA
}
/*
* Process a BAR ctl frame. Dispatch all frames up to
* the sequence number of the frame. If this frame is
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
* out of range it's discarded.
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
ieee80211_recv_bar(struct ieee80211_node *ni, 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;
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 ieee80211_frame_bar *wh;
struct ieee80211_rx_ampdu *rap;
ieee80211_seq rxseq;
int tid, off;
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
if (!ieee80211_recv_bar_ena) {
#if 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
IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_11N,
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
ni->ni_macaddr, "BAR", "%s", "processing disabled");
#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
vap->iv_stats.is_ampdu_bar_bad++;
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
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
wh = mtod(m0, struct ieee80211_frame_bar *);
/* XXX check basic BAR */
tid = MS(le16toh(wh->i_ctl), IEEE80211_BAR_TID);
rap = &ni->ni_rx_ampdu[tid];
if ((rap->rxa_flags & IEEE80211_AGGR_XCHGPEND) == 0) {
/*
* No ADDBA request yet, don't touch.
*/
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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_DISCARD_MAC(vap,
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_MSG_INPUT | IEEE80211_MSG_11N,
ni->ni_macaddr, "BAR", "no BA stream, tid %u", tid);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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_stats.is_ampdu_bar_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
return;
}
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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_stats.is_ampdu_bar_rx++;
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
rxseq = le16toh(wh->i_seq) >> IEEE80211_SEQ_SEQ_SHIFT;
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
if (rxseq == rap->rxa_start)
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
/* calculate offset in BA window */
off = IEEE80211_SEQ_SUB(rxseq, rap->rxa_start);
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
if (off < IEEE80211_SEQ_BA_RANGE) {
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
/*
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
* Flush the reorder q up to rxseq and move the window.
Fix a couple of bugs with 802.11n: o Process the BAR frame on the adhoc, mesh and sta modes o Fix the format of the ADDBA reply frame o Fix references to the spec section numbers Also, print the all the MCS rates in bootverbose. Sponsored by: iXsystems, Inc. Obtained from: //depot/user/rpaulo/80211n/...
2010-03-18 11:06:38 +00:00
* Sec 9.10.7.6.3 a) (p.138)
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
IEEE80211_NOTE(vap, IEEE80211_MSG_11N, ni,
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
"BAR moves BA win <%u:%u> (%u frames) rxseq %u tid %u",
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
rap->rxa_start,
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
IEEE80211_SEQ_ADD(rap->rxa_start, rap->rxa_wnd-1),
rap->rxa_qframes, rxseq, tid);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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_stats.is_ampdu_bar_move++;
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
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
ampdu_rx_flush_upto(ni, rap, rxseq);
if (off >= rap->rxa_wnd) {
/*
* BAR specifies a window start to the right of BA
* window; we must move it explicitly since
* ampdu_rx_flush_upto will not.
*/
rap->rxa_start = rxseq;
}
} 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
/*
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
* Out of range; toss.
Fix a couple of bugs with 802.11n: o Process the BAR frame on the adhoc, mesh and sta modes o Fix the format of the ADDBA reply frame o Fix references to the spec section numbers Also, print the all the MCS rates in bootverbose. Sponsored by: iXsystems, Inc. Obtained from: //depot/user/rpaulo/80211n/...
2010-03-18 11:06:38 +00:00
* Sec 9.10.7.6.3 b) (p.138)
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
IEEE80211_DISCARD_MAC(vap,
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
IEEE80211_MSG_INPUT | IEEE80211_MSG_11N, ni->ni_macaddr,
"BAR", "BA win <%u:%u> (%u frames) rxseq %u tid %u%s",
rap->rxa_start,
IEEE80211_SEQ_ADD(rap->rxa_start, rap->rxa_wnd-1),
rap->rxa_qframes, rxseq, tid,
wh->i_fc[1] & IEEE80211_FC1_RETRY ? " (retransmit)" : "");
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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_stats.is_ampdu_bar_oow++;
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
IEEE80211_NODE_STAT(ni, rx_drop);
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
}
}
/*
* Setup HT-specific state in a node. Called only
* when HT use is negotiated so we don't do extra
* work for temporary and/or legacy sta's.
*/
void
Revamp ht ie handling: o change ieee80211_parse_htcap and ieee80211_parse_htinfo to save only internal state obtained from the ie's; no dynamic state such as ni_chw is altered o add ieee80211_ht_updateparams to parse ht cap+info ie's and update dynamic node state o change ieee80211_ht_node_init to not take an htcap ie that is parsed; instead have the caller make a separate call as one caller wants to parse the ie while another wants to parse both cap+info ie's and update state so can better do this with ieee80211_ht_updateparams These changes fix sta mode state handling where the node's channel width was shifted to ht20/ht40 prematurely.
2008-09-21 23:44:15 +00:00
ieee80211_ht_node_init(struct ieee80211_node *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
{
struct ieee80211_tx_ampdu *tap;
Migrate the net80211 TX aggregation state to be from per-AC to per-TID. TODO: * Test mwl(4) more thoroughly! Reviewed by: bschmidt (for iwn)
2012-04-15 20:29:39 +00:00
int tid;
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
Add some further BAR TX debugging; it was useful when figuring out when BAR TX was actually failing.
2012-10-28 04:18:49 +00:00
IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_11N,
ni,
"%s: called",
__func__);
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
if (ni->ni_flags & IEEE80211_NODE_HT) {
/*
* Clean AMPDU state on re-associate. This handles the case
* where a station leaves w/o notifying us and then returns
* before node is reaped for inactivity.
*/
Add some further BAR TX debugging; it was useful when figuring out when BAR TX was actually failing.
2012-10-28 04:18:49 +00:00
IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_11N,
ni,
"%s: calling cleanup",
__func__);
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
ieee80211_ht_node_cleanup(ni);
}
Migrate the net80211 TX aggregation state to be from per-AC to per-TID. TODO: * Test mwl(4) more thoroughly! Reviewed by: bschmidt (for iwn)
2012-04-15 20:29:39 +00:00
for (tid = 0; tid < WME_NUM_TID; tid++) {
tap = &ni->ni_tx_ampdu[tid];
tap->txa_tid = tid;
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
tap->txa_ni = ni;
Initialise the pps / packet tracking timestamp so 11n aggregation works again. There's a bug in the ticks handling where when initialised at '0', once the ticks counter wrapped the comparison math would never trigger. The pps calculation would never happen, and thus aggregation was never enabled. It manifests itself as "oh you only get 11n transmit aggregation for the first 10 minutes of uptime." I'm sure there are other ticks related issues lurking in net80211. Tested: * ath / iwn, both with 'wlandebug +11n' and a little bit of iperf to kick off the transmit A-MPDU negotiation once the pps gets high enough.
2015-03-22 17:54:00 +00:00
tap->txa_lastsample = ticks;
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
/* NB: further initialization deferred */
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
}
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
ni->ni_flags |= IEEE80211_NODE_HT | IEEE80211_NODE_AMPDU;
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 HT-specific state in a node. Called only
* when HT use has been marked.
*/
void
ieee80211_ht_node_cleanup(struct ieee80211_node *ni)
{
allow drivers to hook ampdu rx start/stop
2009-04-26 22:54:51 +00:00
struct ieee80211com *ic = ni->ni_ic;
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;
Add some further BAR TX debugging; it was useful when figuring out when BAR TX was actually failing.
2012-10-28 04:18:49 +00:00
IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_11N,
ni,
"%s: called",
__func__);
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
KASSERT(ni->ni_flags & IEEE80211_NODE_HT, ("not an HT node"));
/* XXX optimize this */
Migrate the net80211 TX aggregation state to be from per-AC to per-TID. TODO: * Test mwl(4) more thoroughly! Reviewed by: bschmidt (for iwn)
2012-04-15 20:29:39 +00:00
for (i = 0; i < WME_NUM_TID; 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
struct ieee80211_tx_ampdu *tap = &ni->ni_tx_ampdu[i];
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
if (tap->txa_flags & IEEE80211_AGGR_SETUP)
ampdu_tx_stop(tap);
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
}
for (i = 0; i < WME_NUM_TID; i++)
allow drivers to hook ampdu rx start/stop
2009-04-26 22:54:51 +00:00
ic->ic_ampdu_rx_stop(ni, &ni->ni_rx_ampdu[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
ni->ni_htcap = 0;
add IEEE80211_NODE_HT_ALL to collect up all the HT-related node flags
2008-09-06 17:33:46 +00:00
ni->ni_flags &= ~IEEE80211_NODE_HT_ALL;
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +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
/*
* Age out HT resources for a station.
*/
void
ieee80211_ht_node_age(struct ieee80211_node *ni)
{
#ifdef IEEE80211_AMPDU_AGE
struct ieee80211vap *vap = ni->ni_vap;
uint8_t tid;
#endif
KASSERT(ni->ni_flags & IEEE80211_NODE_HT, ("not an HT sta"));
#ifdef IEEE80211_AMPDU_AGE
for (tid = 0; tid < WME_NUM_TID; tid++) {
struct ieee80211_rx_ampdu *rap;
rap = &ni->ni_rx_ampdu[tid];
if ((rap->rxa_flags & IEEE80211_AGGR_XCHGPEND) == 0)
continue;
if (rap->rxa_qframes == 0)
continue;
/*
* Check for frames sitting too long in the reorder queue.
* See above for more details on what's happening here.
*/
/* XXX honor batimeout? */
if (ticks - rap->rxa_age > ieee80211_ampdu_age) {
/*
* Too long since we received the first
* frame; flush the reorder buffer.
*/
vap->iv_stats.is_ampdu_rx_age += rap->rxa_qframes;
ampdu_rx_flush(ni, rap);
}
}
#endif /* IEEE80211_AMPDU_AGE */
}
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
static struct ieee80211_channel *
findhtchan(struct ieee80211com *ic, struct ieee80211_channel *c, int htflags)
{
return ieee80211_find_channel(ic, c->ic_freq,
(c->ic_flags &~ IEEE80211_CHAN_HT) | htflags);
}
/*
* Adjust a channel to be HT/non-HT according to the vap's configuration.
*/
struct ieee80211_channel *
ieee80211_ht_adjust_channel(struct ieee80211com *ic,
struct ieee80211_channel *chan, int flags)
{
struct ieee80211_channel *c;
iv_flags_ext is full, make room by moving HT-related flags to a new iv_flags_ht word
2009-06-07 22:00:22 +00:00
if (flags & IEEE80211_FHT_HT) {
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
/* promote to HT if possible */
iv_flags_ext is full, make room by moving HT-related flags to a new iv_flags_ht word
2009-06-07 22:00:22 +00:00
if (flags & IEEE80211_FHT_USEHT40) {
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
if (!IEEE80211_IS_CHAN_HT40(chan)) {
/* NB: arbitrarily pick ht40+ over ht40- */
c = findhtchan(ic, chan, IEEE80211_CHAN_HT40U);
if (c == NULL)
c = findhtchan(ic, chan,
IEEE80211_CHAN_HT40D);
if (c == NULL)
c = findhtchan(ic, chan,
IEEE80211_CHAN_HT20);
if (c != NULL)
chan = c;
}
} else if (!IEEE80211_IS_CHAN_HT20(chan)) {
c = findhtchan(ic, chan, IEEE80211_CHAN_HT20);
if (c != NULL)
chan = c;
}
} else if (IEEE80211_IS_CHAN_HT(chan)) {
/* demote to legacy, HT use is disabled */
c = ieee80211_find_channel(ic, chan->ic_freq,
chan->ic_flags &~ IEEE80211_CHAN_HT);
if (c != NULL)
chan = c;
}
return chan;
}
/*
* Setup HT-specific state for a legacy WDS peer.
*/
void
ieee80211_ht_wds_init(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;
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
struct ieee80211_tx_ampdu *tap;
Migrate the net80211 TX aggregation state to be from per-AC to per-TID. TODO: * Test mwl(4) more thoroughly! Reviewed by: bschmidt (for iwn)
2012-04-15 20:29:39 +00:00
int tid;
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
iv_flags_ext is full, make room by moving HT-related flags to a new iv_flags_ht word
2009-06-07 22:00:22 +00:00
KASSERT(vap->iv_flags_ht & IEEE80211_FHT_HT, ("no HT requested"));
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
/* XXX check scan cache in case peer has an ap and we have info */
/*
* If setup with a legacy channel; locate an HT channel.
* Otherwise if the inherited channel (from a companion
* AP) is suitable use it so we use the same location
* for the extension channel).
*/
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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->ni_chan = ieee80211_ht_adjust_channel(ni->ni_ic,
ni->ni_chan, ieee80211_htchanflags(ni->ni_chan));
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
ni->ni_htcap = 0;
iv_flags_ext is full, make room by moving HT-related flags to a new iv_flags_ht word
2009-06-07 22:00:22 +00:00
if (vap->iv_flags_ht & IEEE80211_FHT_SHORTGI20)
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
ni->ni_htcap |= IEEE80211_HTCAP_SHORTGI20;
if (IEEE80211_IS_CHAN_HT40(ni->ni_chan)) {
ni->ni_htcap |= IEEE80211_HTCAP_CHWIDTH40;
ni->ni_chw = 40;
if (IEEE80211_IS_CHAN_HT40U(ni->ni_chan))
ni->ni_ht2ndchan = IEEE80211_HTINFO_2NDCHAN_ABOVE;
else if (IEEE80211_IS_CHAN_HT40D(ni->ni_chan))
ni->ni_ht2ndchan = IEEE80211_HTINFO_2NDCHAN_BELOW;
iv_flags_ext is full, make room by moving HT-related flags to a new iv_flags_ht word
2009-06-07 22:00:22 +00:00
if (vap->iv_flags_ht & IEEE80211_FHT_SHORTGI40)
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
ni->ni_htcap |= IEEE80211_HTCAP_SHORTGI40;
} else {
ni->ni_chw = 20;
ni->ni_ht2ndchan = IEEE80211_HTINFO_2NDCHAN_NONE;
}
ni->ni_htctlchan = ni->ni_chan->ic_ieee;
iv_flags_ext is full, make room by moving HT-related flags to a new iv_flags_ht word
2009-06-07 22:00:22 +00:00
if (vap->iv_flags_ht & IEEE80211_FHT_RIFS)
RIFS support; needs driver callback for dynamic state change
2008-09-22 00:10:22 +00:00
ni->ni_flags |= IEEE80211_NODE_RIFS;
/* XXX does it make sense to enable SMPS? */
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
ni->ni_htopmode = 0; /* XXX need protection state */
ni->ni_htstbc = 0; /* XXX need info */
Migrate the net80211 TX aggregation state to be from per-AC to per-TID. TODO: * Test mwl(4) more thoroughly! Reviewed by: bschmidt (for iwn)
2012-04-15 20:29:39 +00:00
for (tid = 0; tid < WME_NUM_TID; tid++) {
tap = &ni->ni_tx_ampdu[tid];
tap->txa_tid = tid;
Initialise the pps / packet tracking timestamp so 11n aggregation works again. There's a bug in the ticks handling where when initialised at '0', once the ticks counter wrapped the comparison math would never trigger. The pps calculation would never happen, and thus aggregation was never enabled. It manifests itself as "oh you only get 11n transmit aggregation for the first 10 minutes of uptime." I'm sure there are other ticks related issues lurking in net80211. Tested: * ath / iwn, both with 'wlandebug +11n' and a little bit of iperf to kick off the transmit A-MPDU negotiation once the pps gets high enough.
2015-03-22 17:54:00 +00:00
tap->txa_lastsample = ticks;
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
}
iv_flags_ext is full, make room by moving HT-related flags to a new iv_flags_ht word
2009-06-07 22:00:22 +00:00
/* NB: AMPDU tx/rx governed by IEEE80211_FHT_AMPDU_{TX,RX} */
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
ni->ni_flags |= IEEE80211_NODE_HT | IEEE80211_NODE_AMPDU;
}
/*
* Notify hostap vaps of a change in the HTINFO ie.
*/
static void
htinfo_notify(struct ieee80211com *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
struct ieee80211vap *vap;
int first = 1;
IEEE80211_LOCK_ASSERT(ic);
TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) {
if (vap->iv_opmode != IEEE80211_M_HOSTAP)
continue;
don't propagate ht bss occupancy changes to legacy vaps; they won't have an htinfo ie to update
2008-09-21 23:32:48 +00:00
if (vap->iv_state != IEEE80211_S_RUN ||
!IEEE80211_IS_CHAN_HT(vap->iv_bss->ni_chan))
continue;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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 (first) {
IEEE80211_NOTE(vap,
IEEE80211_MSG_ASSOC | IEEE80211_MSG_11N,
vap->iv_bss,
"HT bss occupancy change: %d sta, %d ht, "
"%d ht40%s, HT protmode now 0x%x"
, ic->ic_sta_assoc
, ic->ic_ht_sta_assoc
, ic->ic_ht40_sta_assoc
iv_flags_ext is full, make room by moving HT-related flags to a new iv_flags_ht word
2009-06-07 22:00:22 +00:00
, (ic->ic_flags_ht & IEEE80211_FHT_NONHT_PR) ?
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
", non-HT sta present" : ""
, ic->ic_curhtprotmode);
first = 0;
}
ieee80211_beacon_notify(vap, IEEE80211_BEACON_HTINFO);
}
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
}
/*
* Calculate HT protection mode from current
* state and handle updates.
*/
static void
htinfo_update(struct ieee80211com *ic)
{
uint8_t protmode;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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_sta_assoc != ic->ic_ht_sta_assoc) {
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
protmode = IEEE80211_HTINFO_OPMODE_MIXED
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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_HTINFO_NONHT_PRESENT;
iv_flags_ext is full, make room by moving HT-related flags to a new iv_flags_ht word
2009-06-07 22:00:22 +00:00
} else if (ic->ic_flags_ht & IEEE80211_FHT_NONHT_PR) {
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
protmode = IEEE80211_HTINFO_OPMODE_PROTOPT
| IEEE80211_HTINFO_NONHT_PRESENT;
} else if (ic->ic_bsschan != IEEE80211_CHAN_ANYC &&
IEEE80211_IS_CHAN_HT40(ic->ic_bsschan) &&
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
ic->ic_sta_assoc != ic->ic_ht40_sta_assoc) {
protmode = IEEE80211_HTINFO_OPMODE_HT20PR;
} else {
protmode = IEEE80211_HTINFO_OPMODE_PURE;
}
if (protmode != ic->ic_curhtprotmode) {
ic->ic_curhtprotmode = protmode;
htinfo_notify(ic);
}
}
/*
* Handle an HT station joining a BSS.
*/
void
ieee80211_ht_node_join(struct ieee80211_node *ni)
{
struct ieee80211com *ic = ni->ni_ic;
IEEE80211_LOCK_ASSERT(ic);
if (ni->ni_flags & IEEE80211_NODE_HT) {
ic->ic_ht_sta_assoc++;
if (ni->ni_chw == 40)
ic->ic_ht40_sta_assoc++;
}
htinfo_update(ic);
}
/*
* Handle an HT station leaving a BSS.
*/
void
ieee80211_ht_node_leave(struct ieee80211_node *ni)
{
struct ieee80211com *ic = ni->ni_ic;
IEEE80211_LOCK_ASSERT(ic);
if (ni->ni_flags & IEEE80211_NODE_HT) {
ic->ic_ht_sta_assoc--;
if (ni->ni_chw == 40)
ic->ic_ht40_sta_assoc--;
}
htinfo_update(ic);
}
/*
* Public version of htinfo_update; used for processing
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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 frames from overlapping bss.
*
* Caller can specify either IEEE80211_HTINFO_OPMODE_MIXED
* (on receipt of a beacon that advertises MIXED) or
* IEEE80211_HTINFO_OPMODE_PROTOPT (on receipt of a beacon
* from an overlapping legacy bss). We treat MIXED with
* a higher precedence than PROTOPT (i.e. we will not change
* change PROTOPT -> MIXED; only MIXED -> PROTOPT). This
* corresponds to how we handle things in htinfo_update.
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
*/
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
ieee80211_htprot_update(struct ieee80211com *ic, int protmode)
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +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
#define OPMODE(x) SM(x, IEEE80211_HTINFO_OPMODE)
add missing lock for htinfo update Submitted by: Chris Zimmermann
2008-08-02 18:04:09 +00:00
IEEE80211_LOCK(ic);
Always update ic_lastnonht so we track overlapping legacy bss properly; was doing this only on a change in the protection mode so the advertised protection mode in the beacon would oscillate. Submitted by: Chris Zimmermann
2008-09-21 22:24:07 +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
/* track non-HT station presence */
KASSERT(protmode & IEEE80211_HTINFO_NONHT_PRESENT,
Always update ic_lastnonht so we track overlapping legacy bss properly; was doing this only on a change in the protection mode so the advertised protection mode in the beacon would oscillate. Submitted by: Chris Zimmermann
2008-09-21 22:24:07 +00:00
("protmode 0x%x", protmode));
iv_flags_ext is full, make room by moving HT-related flags to a new iv_flags_ht word
2009-06-07 22:00:22 +00:00
ic->ic_flags_ht |= IEEE80211_FHT_NONHT_PR;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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_lastnonht = ticks;
Always update ic_lastnonht so we track overlapping legacy bss properly; was doing this only on a change in the protection mode so the advertised protection mode in the beacon would oscillate. Submitted by: Chris Zimmermann
2008-09-21 22:24:07 +00:00
if (protmode != ic->ic_curhtprotmode &&
(OPMODE(ic->ic_curhtprotmode) != IEEE80211_HTINFO_OPMODE_MIXED ||
OPMODE(protmode) == IEEE80211_HTINFO_OPMODE_PROTOPT)) {
/* push beacon update */
ic->ic_curhtprotmode = protmode;
htinfo_notify(ic);
}
add missing lock for htinfo update Submitted by: Chris Zimmermann
2008-08-02 18:04:09 +00:00
IEEE80211_UNLOCK(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
#undef OPMODE
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
}
/*
* Time out presence of an overlapping bss with non-HT
* stations. When operating in hostap mode we listen for
* beacons from other stations and if we identify a non-HT
* station is present we update the opmode field of the
* HTINFO ie. To identify when all non-HT stations are
* gone we time out this condition.
*/
void
ieee80211_ht_timeout(struct ieee80211com *ic)
{
IEEE80211_LOCK_ASSERT(ic);
iv_flags_ext is full, make room by moving HT-related flags to a new iv_flags_ht word
2009-06-07 22:00:22 +00:00
if ((ic->ic_flags_ht & IEEE80211_FHT_NONHT_PR) &&
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
time_after(ticks, ic->ic_lastnonht + IEEE80211_NONHT_PRESENT_AGE)) {
#if 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
IEEE80211_NOTE(vap, IEEE80211_MSG_11N, ni,
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
"%s", "time out non-HT STA present on channel");
#endif
iv_flags_ext is full, make room by moving HT-related flags to a new iv_flags_ht word
2009-06-07 22:00:22 +00:00
ic->ic_flags_ht &= ~IEEE80211_FHT_NONHT_PR;
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
htinfo_update(ic);
}
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
}
/* unalligned little endian access */
#define LE_READ_2(p) \
((uint16_t) \
((((const uint8_t *)(p))[0] ) | \
(((const uint8_t *)(p))[1] << 8)))
/*
* Process an 802.11n HT capabilities ie.
*/
void
ieee80211_parse_htcap(struct ieee80211_node *ni, const uint8_t *ie)
{
if (ie[0] == IEEE80211_ELEMID_VENDOR) {
/*
* Station used Vendor OUI ie to associate;
* mark the node so when we respond we'll use
* the Vendor OUI's and not the standard ie's.
*/
ni->ni_flags |= IEEE80211_NODE_HTCOMPAT;
ie += 4;
} else
ni->ni_flags &= ~IEEE80211_NODE_HTCOMPAT;
ni->ni_htcap = LE_READ_2(ie +
__offsetof(struct ieee80211_ie_htcap, hc_cap));
ni->ni_htparam = ie[__offsetof(struct ieee80211_ie_htcap, hc_param)];
}
Revamp ht ie handling: o change ieee80211_parse_htcap and ieee80211_parse_htinfo to save only internal state obtained from the ie's; no dynamic state such as ni_chw is altered o add ieee80211_ht_updateparams to parse ht cap+info ie's and update dynamic node state o change ieee80211_ht_node_init to not take an htcap ie that is parsed; instead have the caller make a separate call as one caller wants to parse the ie while another wants to parse both cap+info ie's and update state so can better do this with ieee80211_ht_updateparams These changes fix sta mode state handling where the node's channel width was shifted to ht20/ht40 prematurely.
2008-09-21 23:44:15 +00:00
static void
htinfo_parse(struct ieee80211_node *ni,
const struct ieee80211_ie_htinfo *htinfo)
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
{
uint16_t w;
ni->ni_htctlchan = htinfo->hi_ctrlchannel;
ni->ni_ht2ndchan = SM(htinfo->hi_byte1, IEEE80211_HTINFO_2NDCHAN);
Miscellaneous fixups to 802.11 defs: o update 11n definitions to D2.0 spec o add IEEE80211_CAPINFO_SPECTRUM_MGMT for DFS support o add CSA ie definition for DFS support o purge some unused definitions o correct 802.11 reason and status codes o correct reason code returned when a sta tries to associate to an ap operating with WPA/RSN but without a WPA/RSN ie Reviewed by: thompsa, avatar Approved by: re (blanket wireless)
2007-09-05 20:29:51 +00:00
w = LE_READ_2(&htinfo->hi_byte2);
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_htopmode = SM(w, IEEE80211_HTINFO_OPMODE);
w = LE_READ_2(&htinfo->hi_byte45);
ni->ni_htstbc = SM(w, IEEE80211_HTINFO_BASIC_STBCMCS);
Revamp ht ie handling: o change ieee80211_parse_htcap and ieee80211_parse_htinfo to save only internal state obtained from the ie's; no dynamic state such as ni_chw is altered o add ieee80211_ht_updateparams to parse ht cap+info ie's and update dynamic node state o change ieee80211_ht_node_init to not take an htcap ie that is parsed; instead have the caller make a separate call as one caller wants to parse the ie while another wants to parse both cap+info ie's and update state so can better do this with ieee80211_ht_updateparams These changes fix sta mode state handling where the node's channel width was shifted to ht20/ht40 prematurely.
2008-09-21 23:44:15 +00:00
}
/*
* Parse an 802.11n HT info ie and save useful information
* to the node state. Note this does not effect any state
* changes such as for channel width change.
*/
void
ieee80211_parse_htinfo(struct ieee80211_node *ni, const uint8_t *ie)
{
if (ie[0] == IEEE80211_ELEMID_VENDOR)
ie += 4;
htinfo_parse(ni, (const struct ieee80211_ie_htinfo *) ie);
}
/*
* Handle 11n channel switch. Use the received HT ie's to
* identify the right channel to use. If we cannot locate it
* in the channel table then fallback to legacy operation.
* Note that we use this information to identify the node's
* channel only; the caller is responsible for insuring any
* required channel change is done (e.g. in sta mode when
* parsing the contents of a beacon frame).
*/
Create a new task to handle 802.11n channel width changes. Currently, a channel width change updates the 802.11n HT info data in net80211 but it doesn't trigger any device changes. So the device driver may decide that HT40 frames can be transmitted but the last device channel set only had HT20 set. Now, a task is scheduled so a hardware reset or change isn't done during any active ongoing RX. It also means that it's serialised with the other task operations (eg channel change.) This isn't the final incantation of this work, see below. For now, any unmodified drivers will simply receive a channel change log entry. A subsequent patch to ath(4) will introduce some basic channel change handling (by resetting the NIC.) Other NICs may need to update their rate control information. TODO: * There's still a small window at the present moment where the channel width has been updated but the task hasn't been fired. The final version of this should likely pass in a channel width field to the driver and let the driver atomically do whatever it needs to before changing the channel. PR: kern/166286
2012-03-25 03:11:57 +00:00
static int
Revamp ht ie handling: o change ieee80211_parse_htcap and ieee80211_parse_htinfo to save only internal state obtained from the ie's; no dynamic state such as ni_chw is altered o add ieee80211_ht_updateparams to parse ht cap+info ie's and update dynamic node state o change ieee80211_ht_node_init to not take an htcap ie that is parsed; instead have the caller make a separate call as one caller wants to parse the ie while another wants to parse both cap+info ie's and update state so can better do this with ieee80211_ht_updateparams These changes fix sta mode state handling where the node's channel width was shifted to ht20/ht40 prematurely.
2008-09-21 23:44:15 +00:00
htinfo_update_chw(struct ieee80211_node *ni, int htflags)
{
struct ieee80211com *ic = ni->ni_ic;
struct ieee80211_channel *c;
int chanflags;
Create a new task to handle 802.11n channel width changes. Currently, a channel width change updates the 802.11n HT info data in net80211 but it doesn't trigger any device changes. So the device driver may decide that HT40 frames can be transmitted but the last device channel set only had HT20 set. Now, a task is scheduled so a hardware reset or change isn't done during any active ongoing RX. It also means that it's serialised with the other task operations (eg channel change.) This isn't the final incantation of this work, see below. For now, any unmodified drivers will simply receive a channel change log entry. A subsequent patch to ath(4) will introduce some basic channel change handling (by resetting the NIC.) Other NICs may need to update their rate control information. TODO: * There's still a small window at the present moment where the channel width has been updated but the task hasn't been fired. The final version of this should likely pass in a channel width field to the driver and let the driver atomically do whatever it needs to before changing the channel. PR: kern/166286
2012-03-25 03:11:57 +00:00
int ret = 0;
Revamp ht ie handling: o change ieee80211_parse_htcap and ieee80211_parse_htinfo to save only internal state obtained from the ie's; no dynamic state such as ni_chw is altered o add ieee80211_ht_updateparams to parse ht cap+info ie's and update dynamic node state o change ieee80211_ht_node_init to not take an htcap ie that is parsed; instead have the caller make a separate call as one caller wants to parse the ie while another wants to parse both cap+info ie's and update state so can better do this with ieee80211_ht_updateparams These changes fix sta mode state handling where the node's channel width was shifted to ht20/ht40 prematurely.
2008-09-21 23:44:15 +00:00
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
chanflags = (ni->ni_chan->ic_flags &~ IEEE80211_CHAN_HT) | htflags;
if (chanflags != ni->ni_chan->ic_flags) {
Revamp ht ie handling: o change ieee80211_parse_htcap and ieee80211_parse_htinfo to save only internal state obtained from the ie's; no dynamic state such as ni_chw is altered o add ieee80211_ht_updateparams to parse ht cap+info ie's and update dynamic node state o change ieee80211_ht_node_init to not take an htcap ie that is parsed; instead have the caller make a separate call as one caller wants to parse the ie while another wants to parse both cap+info ie's and update state so can better do this with ieee80211_ht_updateparams These changes fix sta mode state handling where the node's channel width was shifted to ht20/ht40 prematurely.
2008-09-21 23:44:15 +00:00
/* XXX not right for ht40- */
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
c = ieee80211_find_channel(ic, ni->ni_chan->ic_freq, chanflags);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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 (c == NULL && (htflags & IEEE80211_CHAN_HT40)) {
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
/*
* No HT40 channel entry in our table; fall back
* to HT20 operation. This should not happen.
*/
c = findhtchan(ic, ni->ni_chan, IEEE80211_CHAN_HT20);
Revamp ht ie handling: o change ieee80211_parse_htcap and ieee80211_parse_htinfo to save only internal state obtained from the ie's; no dynamic state such as ni_chw is altered o add ieee80211_ht_updateparams to parse ht cap+info ie's and update dynamic node state o change ieee80211_ht_node_init to not take an htcap ie that is parsed; instead have the caller make a separate call as one caller wants to parse the ie while another wants to parse both cap+info ie's and update state so can better do this with ieee80211_ht_updateparams These changes fix sta mode state handling where the node's channel width was shifted to ht20/ht40 prematurely.
2008-09-21 23:44:15 +00:00
#if 0
IEEE80211_NOTE(ni->ni_vap,
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
IEEE80211_MSG_ASSOC | IEEE80211_MSG_11N, ni,
"no HT40 channel (freq %u), falling back to HT20",
ni->ni_chan->ic_freq);
Revamp ht ie handling: o change ieee80211_parse_htcap and ieee80211_parse_htinfo to save only internal state obtained from the ie's; no dynamic state such as ni_chw is altered o add ieee80211_ht_updateparams to parse ht cap+info ie's and update dynamic node state o change ieee80211_ht_node_init to not take an htcap ie that is parsed; instead have the caller make a separate call as one caller wants to parse the ie while another wants to parse both cap+info ie's and update state so can better do this with ieee80211_ht_updateparams These changes fix sta mode state handling where the node's channel width was shifted to ht20/ht40 prematurely.
2008-09-21 23:44:15 +00:00
#endif
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
/* XXX stat */
}
if (c != NULL && c != ni->ni_chan) {
Revamp ht ie handling: o change ieee80211_parse_htcap and ieee80211_parse_htinfo to save only internal state obtained from the ie's; no dynamic state such as ni_chw is altered o add ieee80211_ht_updateparams to parse ht cap+info ie's and update dynamic node state o change ieee80211_ht_node_init to not take an htcap ie that is parsed; instead have the caller make a separate call as one caller wants to parse the ie while another wants to parse both cap+info ie's and update state so can better do this with ieee80211_ht_updateparams These changes fix sta mode state handling where the node's channel width was shifted to ht20/ht40 prematurely.
2008-09-21 23:44:15 +00:00
IEEE80211_NOTE(ni->ni_vap,
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
IEEE80211_MSG_ASSOC | IEEE80211_MSG_11N, ni,
"switch station to HT%d channel %u/0x%x",
IEEE80211_IS_CHAN_HT40(c) ? 40 : 20,
c->ic_freq, c->ic_flags);
ni->ni_chan = c;
Create a new task to handle 802.11n channel width changes. Currently, a channel width change updates the 802.11n HT info data in net80211 but it doesn't trigger any device changes. So the device driver may decide that HT40 frames can be transmitted but the last device channel set only had HT20 set. Now, a task is scheduled so a hardware reset or change isn't done during any active ongoing RX. It also means that it's serialised with the other task operations (eg channel change.) This isn't the final incantation of this work, see below. For now, any unmodified drivers will simply receive a channel change log entry. A subsequent patch to ath(4) will introduce some basic channel change handling (by resetting the NIC.) Other NICs may need to update their rate control information. TODO: * There's still a small window at the present moment where the channel width has been updated but the task hasn't been fired. The final version of this should likely pass in a channel width field to the driver and let the driver atomically do whatever it needs to before changing the channel. PR: kern/166286
2012-03-25 03:11:57 +00:00
ret = 1;
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
}
/* NB: caller responsible for forcing any channel change */
}
/* update node's tx channel width */
ni->ni_chw = IEEE80211_IS_CHAN_HT40(ni->ni_chan)? 40 : 20;
Create a new task to handle 802.11n channel width changes. Currently, a channel width change updates the 802.11n HT info data in net80211 but it doesn't trigger any device changes. So the device driver may decide that HT40 frames can be transmitted but the last device channel set only had HT20 set. Now, a task is scheduled so a hardware reset or change isn't done during any active ongoing RX. It also means that it's serialised with the other task operations (eg channel change.) This isn't the final incantation of this work, see below. For now, any unmodified drivers will simply receive a channel change log entry. A subsequent patch to ath(4) will introduce some basic channel change handling (by resetting the NIC.) Other NICs may need to update their rate control information. TODO: * There's still a small window at the present moment where the channel width has been updated but the task hasn't been fired. The final version of this should likely pass in a channel width field to the driver and let the driver atomically do whatever it needs to before changing the channel. PR: kern/166286
2012-03-25 03:11:57 +00:00
return (ret);
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
}
MIMO power save support; still needs callbacks for notifying drivers of dynamic state change in station mode.
2008-09-21 23:59:14 +00:00
/*
* Update 11n MIMO PS state according to received htcap.
*/
static __inline int
htcap_update_mimo_ps(struct ieee80211_node *ni)
{
uint16_t oflags = ni->ni_flags;
switch (ni->ni_htcap & IEEE80211_HTCAP_SMPS) {
case IEEE80211_HTCAP_SMPS_DYNAMIC:
ni->ni_flags |= IEEE80211_NODE_MIMO_PS;
ni->ni_flags |= IEEE80211_NODE_MIMO_RTS;
break;
case IEEE80211_HTCAP_SMPS_ENA:
ni->ni_flags |= IEEE80211_NODE_MIMO_PS;
ni->ni_flags &= ~IEEE80211_NODE_MIMO_RTS;
break;
case IEEE80211_HTCAP_SMPS_OFF:
default: /* disable on rx of reserved value */
ni->ni_flags &= ~IEEE80211_NODE_MIMO_PS;
ni->ni_flags &= ~IEEE80211_NODE_MIMO_RTS;
break;
}
return (oflags ^ ni->ni_flags);
}
Fix handling of shortgi: use the local configuration (and implicitly device capabilities) to decide whether to use short gi. Drivers inspect ni_flags to decide whether to send a frame w/ short sgi.
2008-09-22 00:14:50 +00:00
/*
* Update short GI state according to received htcap
* and local settings.
*/
static __inline void
htcap_update_shortgi(struct ieee80211_node *ni)
{
struct ieee80211vap *vap = ni->ni_vap;
ni->ni_flags &= ~(IEEE80211_NODE_SGI20|IEEE80211_NODE_SGI40);
if ((ni->ni_htcap & IEEE80211_HTCAP_SHORTGI20) &&
iv_flags_ext is full, make room by moving HT-related flags to a new iv_flags_ht word
2009-06-07 22:00:22 +00:00
(vap->iv_flags_ht & IEEE80211_FHT_SHORTGI20))
Fix handling of shortgi: use the local configuration (and implicitly device capabilities) to decide whether to use short gi. Drivers inspect ni_flags to decide whether to send a frame w/ short sgi.
2008-09-22 00:14:50 +00:00
ni->ni_flags |= IEEE80211_NODE_SGI20;
if ((ni->ni_htcap & IEEE80211_HTCAP_SHORTGI40) &&
iv_flags_ext is full, make room by moving HT-related flags to a new iv_flags_ht word
2009-06-07 22:00:22 +00:00
(vap->iv_flags_ht & IEEE80211_FHT_SHORTGI40))
Fix handling of shortgi: use the local configuration (and implicitly device capabilities) to decide whether to use short gi. Drivers inspect ni_flags to decide whether to send a frame w/ short sgi.
2008-09-22 00:14:50 +00:00
ni->ni_flags |= IEEE80211_NODE_SGI40;
}
Revamp ht ie handling: o change ieee80211_parse_htcap and ieee80211_parse_htinfo to save only internal state obtained from the ie's; no dynamic state such as ni_chw is altered o add ieee80211_ht_updateparams to parse ht cap+info ie's and update dynamic node state o change ieee80211_ht_node_init to not take an htcap ie that is parsed; instead have the caller make a separate call as one caller wants to parse the ie while another wants to parse both cap+info ie's and update state so can better do this with ieee80211_ht_updateparams These changes fix sta mode state handling where the node's channel width was shifted to ht20/ht40 prematurely.
2008-09-21 23:44:15 +00:00
/*
* Parse and update HT-related state extracted from
* the HT cap and info ie's.
*/
Create a new task to handle 802.11n channel width changes. Currently, a channel width change updates the 802.11n HT info data in net80211 but it doesn't trigger any device changes. So the device driver may decide that HT40 frames can be transmitted but the last device channel set only had HT20 set. Now, a task is scheduled so a hardware reset or change isn't done during any active ongoing RX. It also means that it's serialised with the other task operations (eg channel change.) This isn't the final incantation of this work, see below. For now, any unmodified drivers will simply receive a channel change log entry. A subsequent patch to ath(4) will introduce some basic channel change handling (by resetting the NIC.) Other NICs may need to update their rate control information. TODO: * There's still a small window at the present moment where the channel width has been updated but the task hasn't been fired. The final version of this should likely pass in a channel width field to the driver and let the driver atomically do whatever it needs to before changing the channel. PR: kern/166286
2012-03-25 03:11:57 +00:00
int
Revamp ht ie handling: o change ieee80211_parse_htcap and ieee80211_parse_htinfo to save only internal state obtained from the ie's; no dynamic state such as ni_chw is altered o add ieee80211_ht_updateparams to parse ht cap+info ie's and update dynamic node state o change ieee80211_ht_node_init to not take an htcap ie that is parsed; instead have the caller make a separate call as one caller wants to parse the ie while another wants to parse both cap+info ie's and update state so can better do this with ieee80211_ht_updateparams These changes fix sta mode state handling where the node's channel width was shifted to ht20/ht40 prematurely.
2008-09-21 23:44:15 +00:00
ieee80211_ht_updateparams(struct ieee80211_node *ni,
const uint8_t *htcapie, const uint8_t *htinfoie)
{
struct ieee80211vap *vap = ni->ni_vap;
const struct ieee80211_ie_htinfo *htinfo;
int htflags;
Create a new task to handle 802.11n channel width changes. Currently, a channel width change updates the 802.11n HT info data in net80211 but it doesn't trigger any device changes. So the device driver may decide that HT40 frames can be transmitted but the last device channel set only had HT20 set. Now, a task is scheduled so a hardware reset or change isn't done during any active ongoing RX. It also means that it's serialised with the other task operations (eg channel change.) This isn't the final incantation of this work, see below. For now, any unmodified drivers will simply receive a channel change log entry. A subsequent patch to ath(4) will introduce some basic channel change handling (by resetting the NIC.) Other NICs may need to update their rate control information. TODO: * There's still a small window at the present moment where the channel width has been updated but the task hasn't been fired. The final version of this should likely pass in a channel width field to the driver and let the driver atomically do whatever it needs to before changing the channel. PR: kern/166286
2012-03-25 03:11:57 +00:00
int ret = 0;
Revamp ht ie handling: o change ieee80211_parse_htcap and ieee80211_parse_htinfo to save only internal state obtained from the ie's; no dynamic state such as ni_chw is altered o add ieee80211_ht_updateparams to parse ht cap+info ie's and update dynamic node state o change ieee80211_ht_node_init to not take an htcap ie that is parsed; instead have the caller make a separate call as one caller wants to parse the ie while another wants to parse both cap+info ie's and update state so can better do this with ieee80211_ht_updateparams These changes fix sta mode state handling where the node's channel width was shifted to ht20/ht40 prematurely.
2008-09-21 23:44:15 +00:00
ieee80211_parse_htcap(ni, htcapie);
MIMO power save support; still needs callbacks for notifying drivers of dynamic state change in station mode.
2008-09-21 23:59:14 +00:00
if (vap->iv_htcaps & IEEE80211_HTCAP_SMPS)
htcap_update_mimo_ps(ni);
Fix handling of shortgi: use the local configuration (and implicitly device capabilities) to decide whether to use short gi. Drivers inspect ni_flags to decide whether to send a frame w/ short sgi.
2008-09-22 00:14:50 +00:00
htcap_update_shortgi(ni);
Revamp ht ie handling: o change ieee80211_parse_htcap and ieee80211_parse_htinfo to save only internal state obtained from the ie's; no dynamic state such as ni_chw is altered o add ieee80211_ht_updateparams to parse ht cap+info ie's and update dynamic node state o change ieee80211_ht_node_init to not take an htcap ie that is parsed; instead have the caller make a separate call as one caller wants to parse the ie while another wants to parse both cap+info ie's and update state so can better do this with ieee80211_ht_updateparams These changes fix sta mode state handling where the node's channel width was shifted to ht20/ht40 prematurely.
2008-09-21 23:44:15 +00:00
if (htinfoie[0] == IEEE80211_ELEMID_VENDOR)
htinfoie += 4;
htinfo = (const struct ieee80211_ie_htinfo *) htinfoie;
htinfo_parse(ni, htinfo);
iv_flags_ext is full, make room by moving HT-related flags to a new iv_flags_ht word
2009-06-07 22:00:22 +00:00
htflags = (vap->iv_flags_ht & IEEE80211_FHT_HT) ?
Revamp ht ie handling: o change ieee80211_parse_htcap and ieee80211_parse_htinfo to save only internal state obtained from the ie's; no dynamic state such as ni_chw is altered o add ieee80211_ht_updateparams to parse ht cap+info ie's and update dynamic node state o change ieee80211_ht_node_init to not take an htcap ie that is parsed; instead have the caller make a separate call as one caller wants to parse the ie while another wants to parse both cap+info ie's and update state so can better do this with ieee80211_ht_updateparams These changes fix sta mode state handling where the node's channel width was shifted to ht20/ht40 prematurely.
2008-09-21 23:44:15 +00:00
IEEE80211_CHAN_HT20 : 0;
/* NB: honor operating mode constraint */
if ((htinfo->hi_byte1 & IEEE80211_HTINFO_TXWIDTH_2040) &&
iv_flags_ext is full, make room by moving HT-related flags to a new iv_flags_ht word
2009-06-07 22:00:22 +00:00
(vap->iv_flags_ht & IEEE80211_FHT_USEHT40)) {
Revamp ht ie handling: o change ieee80211_parse_htcap and ieee80211_parse_htinfo to save only internal state obtained from the ie's; no dynamic state such as ni_chw is altered o add ieee80211_ht_updateparams to parse ht cap+info ie's and update dynamic node state o change ieee80211_ht_node_init to not take an htcap ie that is parsed; instead have the caller make a separate call as one caller wants to parse the ie while another wants to parse both cap+info ie's and update state so can better do this with ieee80211_ht_updateparams These changes fix sta mode state handling where the node's channel width was shifted to ht20/ht40 prematurely.
2008-09-21 23:44:15 +00:00
if (ni->ni_ht2ndchan == IEEE80211_HTINFO_2NDCHAN_ABOVE)
htflags = IEEE80211_CHAN_HT40U;
else if (ni->ni_ht2ndchan == IEEE80211_HTINFO_2NDCHAN_BELOW)
htflags = IEEE80211_CHAN_HT40D;
}
Create a new task to handle 802.11n channel width changes. Currently, a channel width change updates the 802.11n HT info data in net80211 but it doesn't trigger any device changes. So the device driver may decide that HT40 frames can be transmitted but the last device channel set only had HT20 set. Now, a task is scheduled so a hardware reset or change isn't done during any active ongoing RX. It also means that it's serialised with the other task operations (eg channel change.) This isn't the final incantation of this work, see below. For now, any unmodified drivers will simply receive a channel change log entry. A subsequent patch to ath(4) will introduce some basic channel change handling (by resetting the NIC.) Other NICs may need to update their rate control information. TODO: * There's still a small window at the present moment where the channel width has been updated but the task hasn't been fired. The final version of this should likely pass in a channel width field to the driver and let the driver atomically do whatever it needs to before changing the channel. PR: kern/166286
2012-03-25 03:11:57 +00:00
if (htinfo_update_chw(ni, htflags))
ret = 1;
RIFS support; needs driver callback for dynamic state change
2008-09-22 00:10:22 +00:00
if ((htinfo->hi_byte1 & IEEE80211_HTINFO_RIFSMODE_PERM) &&
iv_flags_ext is full, make room by moving HT-related flags to a new iv_flags_ht word
2009-06-07 22:00:22 +00:00
(vap->iv_flags_ht & IEEE80211_FHT_RIFS))
RIFS support; needs driver callback for dynamic state change
2008-09-22 00:10:22 +00:00
ni->ni_flags |= IEEE80211_NODE_RIFS;
else
ni->ni_flags &= ~IEEE80211_NODE_RIFS;
Create a new task to handle 802.11n channel width changes. Currently, a channel width change updates the 802.11n HT info data in net80211 but it doesn't trigger any device changes. So the device driver may decide that HT40 frames can be transmitted but the last device channel set only had HT20 set. Now, a task is scheduled so a hardware reset or change isn't done during any active ongoing RX. It also means that it's serialised with the other task operations (eg channel change.) This isn't the final incantation of this work, see below. For now, any unmodified drivers will simply receive a channel change log entry. A subsequent patch to ath(4) will introduce some basic channel change handling (by resetting the NIC.) Other NICs may need to update their rate control information. TODO: * There's still a small window at the present moment where the channel width has been updated but the task hasn't been fired. The final version of this should likely pass in a channel width field to the driver and let the driver atomically do whatever it needs to before changing the channel. PR: kern/166286
2012-03-25 03:11:57 +00:00
return (ret);
Revamp ht ie handling: o change ieee80211_parse_htcap and ieee80211_parse_htinfo to save only internal state obtained from the ie's; no dynamic state such as ni_chw is altered o add ieee80211_ht_updateparams to parse ht cap+info ie's and update dynamic node state o change ieee80211_ht_node_init to not take an htcap ie that is parsed; instead have the caller make a separate call as one caller wants to parse the ie while another wants to parse both cap+info ie's and update state so can better do this with ieee80211_ht_updateparams These changes fix sta mode state handling where the node's channel width was shifted to ht20/ht40 prematurely.
2008-09-21 23:44:15 +00:00
}
/*
* Parse and update HT-related state extracted from the HT cap ie
* for a station joining an HT BSS.
*/
void
ieee80211_ht_updatehtcap(struct ieee80211_node *ni, const uint8_t *htcapie)
{
struct ieee80211vap *vap = ni->ni_vap;
int htflags;
ieee80211_parse_htcap(ni, htcapie);
MIMO power save support; still needs callbacks for notifying drivers of dynamic state change in station mode.
2008-09-21 23:59:14 +00:00
if (vap->iv_htcaps & IEEE80211_HTCAP_SMPS)
htcap_update_mimo_ps(ni);
Fix handling of shortgi: use the local configuration (and implicitly device capabilities) to decide whether to use short gi. Drivers inspect ni_flags to decide whether to send a frame w/ short sgi.
2008-09-22 00:14:50 +00:00
htcap_update_shortgi(ni);
Revamp ht ie handling: o change ieee80211_parse_htcap and ieee80211_parse_htinfo to save only internal state obtained from the ie's; no dynamic state such as ni_chw is altered o add ieee80211_ht_updateparams to parse ht cap+info ie's and update dynamic node state o change ieee80211_ht_node_init to not take an htcap ie that is parsed; instead have the caller make a separate call as one caller wants to parse the ie while another wants to parse both cap+info ie's and update state so can better do this with ieee80211_ht_updateparams These changes fix sta mode state handling where the node's channel width was shifted to ht20/ht40 prematurely.
2008-09-21 23:44:15 +00:00
/* NB: honor operating mode constraint */
Constantly use MHz instead of Mhz. Pointed out by: N.J. Mann <njm at njm.me.uk>
2011-03-13 13:05:50 +00:00
/* XXX 40 MHz intolerant */
iv_flags_ext is full, make room by moving HT-related flags to a new iv_flags_ht word
2009-06-07 22:00:22 +00:00
htflags = (vap->iv_flags_ht & IEEE80211_FHT_HT) ?
Revamp ht ie handling: o change ieee80211_parse_htcap and ieee80211_parse_htinfo to save only internal state obtained from the ie's; no dynamic state such as ni_chw is altered o add ieee80211_ht_updateparams to parse ht cap+info ie's and update dynamic node state o change ieee80211_ht_node_init to not take an htcap ie that is parsed; instead have the caller make a separate call as one caller wants to parse the ie while another wants to parse both cap+info ie's and update state so can better do this with ieee80211_ht_updateparams These changes fix sta mode state handling where the node's channel width was shifted to ht20/ht40 prematurely.
2008-09-21 23:44:15 +00:00
IEEE80211_CHAN_HT20 : 0;
if ((ni->ni_htcap & IEEE80211_HTCAP_CHWIDTH40) &&
iv_flags_ext is full, make room by moving HT-related flags to a new iv_flags_ht word
2009-06-07 22:00:22 +00:00
(vap->iv_flags_ht & IEEE80211_FHT_USEHT40)) {
Revamp ht ie handling: o change ieee80211_parse_htcap and ieee80211_parse_htinfo to save only internal state obtained from the ie's; no dynamic state such as ni_chw is altered o add ieee80211_ht_updateparams to parse ht cap+info ie's and update dynamic node state o change ieee80211_ht_node_init to not take an htcap ie that is parsed; instead have the caller make a separate call as one caller wants to parse the ie while another wants to parse both cap+info ie's and update state so can better do this with ieee80211_ht_updateparams These changes fix sta mode state handling where the node's channel width was shifted to ht20/ht40 prematurely.
2008-09-21 23:44:15 +00:00
if (IEEE80211_IS_CHAN_HT40U(vap->iv_bss->ni_chan))
htflags = IEEE80211_CHAN_HT40U;
else if (IEEE80211_IS_CHAN_HT40D(vap->iv_bss->ni_chan))
htflags = IEEE80211_CHAN_HT40D;
}
Create a new task to handle 802.11n channel width changes. Currently, a channel width change updates the 802.11n HT info data in net80211 but it doesn't trigger any device changes. So the device driver may decide that HT40 frames can be transmitted but the last device channel set only had HT20 set. Now, a task is scheduled so a hardware reset or change isn't done during any active ongoing RX. It also means that it's serialised with the other task operations (eg channel change.) This isn't the final incantation of this work, see below. For now, any unmodified drivers will simply receive a channel change log entry. A subsequent patch to ath(4) will introduce some basic channel change handling (by resetting the NIC.) Other NICs may need to update their rate control information. TODO: * There's still a small window at the present moment where the channel width has been updated but the task hasn't been fired. The final version of this should likely pass in a channel width field to the driver and let the driver atomically do whatever it needs to before changing the channel. PR: kern/166286
2012-03-25 03:11:57 +00:00
(void) htinfo_update_chw(ni, htflags);
Revamp ht ie handling: o change ieee80211_parse_htcap and ieee80211_parse_htinfo to save only internal state obtained from the ie's; no dynamic state such as ni_chw is altered o add ieee80211_ht_updateparams to parse ht cap+info ie's and update dynamic node state o change ieee80211_ht_node_init to not take an htcap ie that is parsed; instead have the caller make a separate call as one caller wants to parse the ie while another wants to parse both cap+info ie's and update state so can better do this with ieee80211_ht_updateparams These changes fix sta mode state handling where the node's channel width was shifted to ht20/ht40 prematurely.
2008-09-21 23:44:15 +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
/*
* Install received HT rate set by parsing the HT cap ie.
*/
int
ieee80211_setup_htrates(struct ieee80211_node *ni, const uint8_t *ie, int flags)
{
Honor device capabilities while initializing ni_htrates. Instead of hardcoding MCS0-15 generate the table dynamically, also restrict the MCS rates to our own capabilities while parsing a htcap element.
2011-03-13 12:16:23 +00:00
struct ieee80211com *ic = ni->ni_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
struct ieee80211vap *vap = ni->ni_vap;
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
const struct ieee80211_ie_htcap *htcap;
struct ieee80211_htrateset *rs;
Honor device capabilities while initializing ni_htrates. Instead of hardcoding MCS0-15 generate the table dynamically, also restrict the MCS rates to our own capabilities while parsing a htcap element.
2011-03-13 12:16:23 +00:00
int i, maxequalmcs, maxunequalmcs;
maxequalmcs = ic->ic_txstream * 8 - 1;
if (ic->ic_htcaps & IEEE80211_HTC_TXUNEQUAL) {
if (ic->ic_txstream >= 2)
maxunequalmcs = 38;
if (ic->ic_txstream >= 3)
maxunequalmcs = 52;
if (ic->ic_txstream >= 4)
maxunequalmcs = 76;
} else
maxunequalmcs = 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
rs = &ni->ni_htrates;
memset(rs, 0, sizeof(*rs));
if (ie != NULL) {
if (ie[0] == IEEE80211_ELEMID_VENDOR)
ie += 4;
htcap = (const struct ieee80211_ie_htcap *) ie;
for (i = 0; i < IEEE80211_HTRATE_MAXSIZE; i++) {
if (isclr(htcap->hc_mcsset, i))
continue;
if (rs->rs_nrates == IEEE80211_HTRATE_MAXSIZE) {
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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_NOTE(vap,
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_MSG_XRATE | IEEE80211_MSG_11N, ni,
"WARNING, HT rate set too large; only "
"using %u rates", IEEE80211_HTRATE_MAXSIZE);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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_stats.is_rx_rstoobig++;
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
break;
}
Honor device capabilities while initializing ni_htrates. Instead of hardcoding MCS0-15 generate the table dynamically, also restrict the MCS rates to our own capabilities while parsing a htcap element.
2011-03-13 12:16:23 +00:00
if (i <= 31 && i > maxequalmcs)
continue;
if (i == 32 &&
(ic->ic_htcaps & IEEE80211_HTC_TXMCS32) == 0)
continue;
if (i > 32 && i > maxunequalmcs)
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
rs->rs_rates[rs->rs_nrates++] = i;
}
}
return ieee80211_fix_rate(ni, (struct ieee80211_rateset *) rs, flags);
}
/*
* Mark rates in a node's HT rate set as basic according
* to the information in the supplied HT info ie.
*/
void
ieee80211_setup_basic_htrates(struct ieee80211_node *ni, const uint8_t *ie)
{
const struct ieee80211_ie_htinfo *htinfo;
struct ieee80211_htrateset *rs;
int i, j;
if (ie[0] == IEEE80211_ELEMID_VENDOR)
ie += 4;
htinfo = (const struct ieee80211_ie_htinfo *) ie;
rs = &ni->ni_htrates;
if (rs->rs_nrates == 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
IEEE80211_NOTE(ni->ni_vap,
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_MSG_XRATE | IEEE80211_MSG_11N, ni,
"%s", "WARNING, empty HT rate set");
return;
}
for (i = 0; i < IEEE80211_HTRATE_MAXSIZE; i++) {
if (isclr(htinfo->hi_basicmcsset, i))
continue;
for (j = 0; j < rs->rs_nrates; j++)
if ((rs->rs_rates[j] & IEEE80211_RATE_VAL) == i)
rs->rs_rates[j] |= IEEE80211_RATE_BASIC;
}
}
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
static void
ampdu_tx_setup(struct ieee80211_tx_ampdu *tap)
{
CALLOUT_MPSAFE has lost its meaning since r141428, i.e., for more than ten years for head. However, it is continuously misused as the mpsafe argument for callout_init(9). Deprecate the flag and clean up callout_init() calls to make them more consistent. Differential Revision: https://reviews.freebsd.org/D2613 Reviewed by: jhb MFC after: 2 weeks
2015-05-22 17:05:21 +00:00
callout_init(&tap->txa_timer, 1);
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
tap->txa_flags |= IEEE80211_AGGR_SETUP;
Initialise the pps / packet tracking timestamp so 11n aggregation works again. There's a bug in the ticks handling where when initialised at '0', once the ticks counter wrapped the comparison math would never trigger. The pps calculation would never happen, and thus aggregation was never enabled. It manifests itself as "oh you only get 11n transmit aggregation for the first 10 minutes of uptime." I'm sure there are other ticks related issues lurking in net80211. Tested: * ath / iwn, both with 'wlandebug +11n' and a little bit of iperf to kick off the transmit A-MPDU negotiation once the pps gets high enough.
2015-03-22 17:54:00 +00:00
tap->txa_lastsample = ticks;
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
}
static void
ampdu_tx_stop(struct ieee80211_tx_ampdu *tap)
{
struct ieee80211_node *ni = tap->txa_ni;
struct ieee80211com *ic = ni->ni_ic;
Add some further BAR TX debugging; it was useful when figuring out when BAR TX was actually failing.
2012-10-28 04:18:49 +00:00
IEEE80211_NOTE(tap->txa_ni->ni_vap, IEEE80211_MSG_11N,
tap->txa_ni,
"%s: called",
__func__);
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
KASSERT(tap->txa_flags & IEEE80211_AGGR_SETUP,
Migrate the net80211 TX aggregation state to be from per-AC to per-TID. TODO: * Test mwl(4) more thoroughly! Reviewed by: bschmidt (for iwn)
2012-04-15 20:29:39 +00:00
("txa_flags 0x%x tid %d ac %d", tap->txa_flags, tap->txa_tid,
TID_TO_WME_AC(tap->txa_tid)));
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
/*
* Stop BA stream if setup so driver has a chance
* to reclaim any resources it might have allocated.
*/
ic->ic_addba_stop(ni, tap);
/*
* Stop any pending BAR transmit.
*/
bar_stop_timer(tap);
Initialise the pps / packet tracking timestamp so 11n aggregation works again. There's a bug in the ticks handling where when initialised at '0', once the ticks counter wrapped the comparison math would never trigger. The pps calculation would never happen, and thus aggregation was never enabled. It manifests itself as "oh you only get 11n transmit aggregation for the first 10 minutes of uptime." I'm sure there are other ticks related issues lurking in net80211. Tested: * ath / iwn, both with 'wlandebug +11n' and a little bit of iperf to kick off the transmit A-MPDU negotiation once the pps gets high enough.
2015-03-22 17:54:00 +00:00
/*
* Reset packet estimate.
*/
tap->txa_lastsample = ticks;
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
tap->txa_avgpps = 0;
Initialise the pps / packet tracking timestamp so 11n aggregation works again. There's a bug in the ticks handling where when initialised at '0', once the ticks counter wrapped the comparison math would never trigger. The pps calculation would never happen, and thus aggregation was never enabled. It manifests itself as "oh you only get 11n transmit aggregation for the first 10 minutes of uptime." I'm sure there are other ticks related issues lurking in net80211. Tested: * ath / iwn, both with 'wlandebug +11n' and a little bit of iperf to kick off the transmit A-MPDU negotiation once the pps gets high enough.
2015-03-22 17:54:00 +00:00
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
/* NB: clearing NAK means we may re-send ADDBA */
tap->txa_flags &= ~(IEEE80211_AGGR_SETUP | IEEE80211_AGGR_NAK);
}
Add a callback for ADDBA response timeouts. TX for the given TID needs to be paused during ADDBA requests (and unpaused once the session is established.) Since net80211 currently doesn't implement software aggregation, if this pause/unpause is done in the driver (as it is in my development branch) then it will need to be unpaused both on ADDBA response and on ADDBA timeout. This callback allows the driver to unpause TX for the relevant TID. Reviewed by: bschmidt
2011-06-20 11:46:03 +00:00
/*
* ADDBA response timeout.
*
* If software aggregation and per-TID queue management was done here,
* that queue would be unpaused after the ADDBA timeout occurs.
*/
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
addba_timeout(void *arg)
{
struct ieee80211_tx_ampdu *tap = arg;
Add a callback for ADDBA response timeouts. TX for the given TID needs to be paused during ADDBA requests (and unpaused once the session is established.) Since net80211 currently doesn't implement software aggregation, if this pause/unpause is done in the driver (as it is in my development branch) then it will need to be unpaused both on ADDBA response and on ADDBA timeout. This callback allows the driver to unpause TX for the relevant TID. Reviewed by: bschmidt
2011-06-20 11:46:03 +00:00
struct ieee80211_node *ni = tap->txa_ni;
struct ieee80211com *ic = ni->ni_ic;
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
/* XXX ? */
tap->txa_flags &= ~IEEE80211_AGGR_XCHGPEND;
tap->txa_attempts++;
Add a callback for ADDBA response timeouts. TX for the given TID needs to be paused during ADDBA requests (and unpaused once the session is established.) Since net80211 currently doesn't implement software aggregation, if this pause/unpause is done in the driver (as it is in my development branch) then it will need to be unpaused both on ADDBA response and on ADDBA timeout. This callback allows the driver to unpause TX for the relevant TID. Reviewed by: bschmidt
2011-06-20 11:46:03 +00:00
ic->ic_addba_response_timeout(ni, tap);
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
addba_start_timeout(struct ieee80211_tx_ampdu *tap)
{
/* XXX use CALLOUT_PENDING instead? */
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
callout_reset(&tap->txa_timer, ieee80211_addba_timeout,
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
addba_timeout, tap);
tap->txa_flags |= IEEE80211_AGGR_XCHGPEND;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
tap->txa_nextrequest = ticks + ieee80211_addba_timeout;
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
addba_stop_timeout(struct ieee80211_tx_ampdu *tap)
{
/* XXX use CALLOUT_PENDING instead? */
if (tap->txa_flags & IEEE80211_AGGR_XCHGPEND) {
callout_stop(&tap->txa_timer);
tap->txa_flags &= ~IEEE80211_AGGR_XCHGPEND;
}
}
Add a callback for ADDBA response timeouts. TX for the given TID needs to be paused during ADDBA requests (and unpaused once the session is established.) Since net80211 currently doesn't implement software aggregation, if this pause/unpause is done in the driver (as it is in my development branch) then it will need to be unpaused both on ADDBA response and on ADDBA timeout. This callback allows the driver to unpause TX for the relevant TID. Reviewed by: bschmidt
2011-06-20 11:46:03 +00:00
static void
null_addba_response_timeout(struct ieee80211_node *ni,
struct ieee80211_tx_ampdu *tap)
{
}
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
/*
* Default method for requesting A-MPDU tx aggregation.
* We setup the specified state block and start a timer
* to wait for an ADDBA response frame.
*/
static int
ieee80211_addba_request(struct ieee80211_node *ni,
struct ieee80211_tx_ampdu *tap,
int dialogtoken, int baparamset, int batimeout)
{
int bufsiz;
/* XXX locking */
tap->txa_token = dialogtoken;
tap->txa_flags |= IEEE80211_AGGR_IMMEDIATE;
bufsiz = MS(baparamset, IEEE80211_BAPS_BUFSIZ);
tap->txa_wnd = (bufsiz == 0) ?
IEEE80211_AGGR_BAWMAX : min(bufsiz, IEEE80211_AGGR_BAWMAX);
addba_start_timeout(tap);
return 1;
}
/*
* Default method for processing an A-MPDU tx aggregation
* response. We shutdown any pending timer and update the
* state block according to the reply.
*/
static int
ieee80211_addba_response(struct ieee80211_node *ni,
struct ieee80211_tx_ampdu *tap,
int status, int baparamset, int batimeout)
{
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
int bufsiz, tid;
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
/* XXX locking */
addba_stop_timeout(tap);
if (status == IEEE80211_STATUS_SUCCESS) {
bufsiz = MS(baparamset, IEEE80211_BAPS_BUFSIZ);
/* XXX override our request? */
tap->txa_wnd = (bufsiz == 0) ?
IEEE80211_AGGR_BAWMAX : min(bufsiz, IEEE80211_AGGR_BAWMAX);
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
/* XXX AC/TID */
tid = MS(baparamset, IEEE80211_BAPS_TID);
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
tap->txa_flags |= IEEE80211_AGGR_RUNNING;
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
tap->txa_attempts = 0;
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
} else {
/* mark tid so we don't try again */
tap->txa_flags |= IEEE80211_AGGR_NAK;
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
}
return 1;
}
/*
* Default method for stopping A-MPDU tx aggregation.
* Any timer is cleared and we drain any pending frames.
*/
static void
ieee80211_addba_stop(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap)
{
/* XXX locking */
addba_stop_timeout(tap);
if (tap->txa_flags & IEEE80211_AGGR_RUNNING) {
put back placeholder comment
2008-09-06 17:39:31 +00:00
/* XXX clear aggregation queue */
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
tap->txa_flags &= ~IEEE80211_AGGR_RUNNING;
}
tap->txa_attempts = 0;
}
/*
* Process a received action frame using the default aggregation
* policy. We intercept ADDBA-related frames and use them to
* update our aggregation state. All other frames are passed up
* for processing by ieee80211_recv_action.
*/
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
static int
ht_recv_action_ba_addba_request(struct ieee80211_node *ni,
const struct ieee80211_frame *wh,
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
const uint8_t *frm, const uint8_t *efrm)
{
struct ieee80211com *ic = ni->ni_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
struct ieee80211vap *vap = ni->ni_vap;
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 ieee80211_rx_ampdu *rap;
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
uint8_t dialogtoken;
uint16_t baparamset, batimeout, baseqctl;
Fix a couple of bugs with 802.11n: o Process the BAR frame on the adhoc, mesh and sta modes o Fix the format of the ADDBA reply frame o Fix references to the spec section numbers Also, print the all the MCS rates in bootverbose. Sponsored by: iXsystems, Inc. Obtained from: //depot/user/rpaulo/80211n/...
2010-03-18 11:06:38 +00:00
uint16_t args[5];
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
int tid;
dialogtoken = frm[2];
baparamset = LE_READ_2(frm+3);
batimeout = LE_READ_2(frm+5);
baseqctl = LE_READ_2(frm+7);
tid = MS(baparamset, IEEE80211_BAPS_TID);
IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_11N, ni,
"recv ADDBA request: dialogtoken %u baparamset 0x%x "
"(tid %d bufsiz %d) batimeout %d baseqctl %d:%d",
dialogtoken, baparamset,
tid, MS(baparamset, IEEE80211_BAPS_BUFSIZ),
batimeout,
MS(baseqctl, IEEE80211_BASEQ_START),
MS(baseqctl, IEEE80211_BASEQ_FRAG));
rap = &ni->ni_rx_ampdu[tid];
/* Send ADDBA response */
args[0] = dialogtoken;
/*
* NB: We ack only if the sta associated with HT and
* the ap is configured to do AMPDU rx (the latter
* violates the 11n spec and is mostly for testing).
*/
if ((ni->ni_flags & IEEE80211_NODE_AMPDU_RX) &&
(vap->iv_flags_ht & IEEE80211_FHT_AMPDU_RX)) {
/* XXX handle ampdu_rx_start failure */
ic->ic_ampdu_rx_start(ni, rap,
baparamset, batimeout, baseqctl);
args[1] = IEEE80211_STATUS_SUCCESS;
} else {
IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_11N,
ni, "reject ADDBA request: %s",
ni->ni_flags & IEEE80211_NODE_AMPDU_RX ?
"administratively disabled" :
"not negotiated for station");
vap->iv_stats.is_addba_reject++;
args[1] = IEEE80211_STATUS_UNSPECIFIED;
}
/* XXX honor rap flags? */
args[2] = IEEE80211_BAPS_POLICY_IMMEDIATE
| SM(tid, IEEE80211_BAPS_TID)
| SM(rap->rxa_wnd, IEEE80211_BAPS_BUFSIZ)
;
args[3] = 0;
Fix a couple of bugs with 802.11n: o Process the BAR frame on the adhoc, mesh and sta modes o Fix the format of the ADDBA reply frame o Fix references to the spec section numbers Also, print the all the MCS rates in bootverbose. Sponsored by: iXsystems, Inc. Obtained from: //depot/user/rpaulo/80211n/...
2010-03-18 11:06:38 +00:00
args[4] = 0;
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
ic->ic_send_action(ni, IEEE80211_ACTION_CAT_BA,
IEEE80211_ACTION_BA_ADDBA_RESPONSE, args);
return 0;
}
static int
ht_recv_action_ba_addba_response(struct ieee80211_node *ni,
const struct ieee80211_frame *wh,
const uint8_t *frm, const uint8_t *efrm)
{
struct ieee80211com *ic = ni->ni_ic;
struct ieee80211vap *vap = ni->ni_vap;
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 ieee80211_tx_ampdu *tap;
o validate the ba policy in addba response o leave a check for the max ba window disabled; we accept out of range values and just truncate them but may want to act differently in the future
2008-09-06 17:38:20 +00:00
uint8_t dialogtoken, policy;
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
uint16_t baparamset, batimeout, code;
Migrate the net80211 TX aggregation state to be from per-AC to per-TID. TODO: * Test mwl(4) more thoroughly! Reviewed by: bschmidt (for iwn)
2012-04-15 20:29:39 +00:00
int tid, bufsiz;
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
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
dialogtoken = frm[2];
code = LE_READ_2(frm+3);
baparamset = LE_READ_2(frm+5);
tid = MS(baparamset, IEEE80211_BAPS_TID);
bufsiz = MS(baparamset, IEEE80211_BAPS_BUFSIZ);
policy = MS(baparamset, IEEE80211_BAPS_POLICY);
batimeout = LE_READ_2(frm+7);
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
Migrate the net80211 TX aggregation state to be from per-AC to per-TID. TODO: * Test mwl(4) more thoroughly! Reviewed by: bschmidt (for iwn)
2012-04-15 20:29:39 +00:00
tap = &ni->ni_tx_ampdu[tid];
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
if ((tap->txa_flags & IEEE80211_AGGR_XCHGPEND) == 0) {
IEEE80211_DISCARD_MAC(vap,
IEEE80211_MSG_ACTION | IEEE80211_MSG_11N,
ni->ni_macaddr, "ADDBA response",
"no pending ADDBA, tid %d dialogtoken %u "
"code %d", tid, dialogtoken, code);
vap->iv_stats.is_addba_norequest++;
return 0;
}
if (dialogtoken != tap->txa_token) {
IEEE80211_DISCARD_MAC(vap,
IEEE80211_MSG_ACTION | IEEE80211_MSG_11N,
ni->ni_macaddr, "ADDBA response",
"dialogtoken mismatch: waiting for %d, "
"received %d, tid %d code %d",
tap->txa_token, dialogtoken, tid, code);
vap->iv_stats.is_addba_badtoken++;
return 0;
}
/* NB: assumes IEEE80211_AGGR_IMMEDIATE is 1 */
if (policy != (tap->txa_flags & IEEE80211_AGGR_IMMEDIATE)) {
IEEE80211_DISCARD_MAC(vap,
IEEE80211_MSG_ACTION | IEEE80211_MSG_11N,
ni->ni_macaddr, "ADDBA response",
"policy mismatch: expecting %s, "
"received %s, tid %d code %d",
tap->txa_flags & IEEE80211_AGGR_IMMEDIATE,
policy, tid, code);
vap->iv_stats.is_addba_badpolicy++;
return 0;
}
o validate the ba policy in addba response o leave a check for the max ba window disabled; we accept out of range values and just truncate them but may want to act differently in the future
2008-09-06 17:38:20 +00:00
#if 0
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
/* XXX we take MIN in ieee80211_addba_response */
if (bufsiz > IEEE80211_AGGR_BAWMAX) {
IEEE80211_DISCARD_MAC(vap,
IEEE80211_MSG_ACTION | IEEE80211_MSG_11N,
ni->ni_macaddr, "ADDBA response",
"BA window too large: max %d, "
"received %d, tid %d code %d",
bufsiz, IEEE80211_AGGR_BAWMAX, tid, code);
vap->iv_stats.is_addba_badbawinsize++;
return 0;
}
o validate the ba policy in addba response o leave a check for the max ba window disabled; we accept out of range values and just truncate them but may want to act differently in the future
2008-09-06 17:38:20 +00:00
#endif
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_11N, ni,
"recv ADDBA response: dialogtoken %u code %d "
"baparamset 0x%x (tid %d bufsiz %d) batimeout %d",
dialogtoken, code, baparamset, tid, bufsiz,
batimeout);
ic->ic_addba_response(ni, tap, code, baparamset, batimeout);
return 0;
}
static int
ht_recv_action_ba_delba(struct ieee80211_node *ni,
const struct ieee80211_frame *wh,
const uint8_t *frm, const uint8_t *efrm)
{
struct ieee80211com *ic = ni->ni_ic;
struct ieee80211_rx_ampdu *rap;
struct ieee80211_tx_ampdu *tap;
uint16_t baparamset, code;
Migrate the net80211 TX aggregation state to be from per-AC to per-TID. TODO: * Test mwl(4) more thoroughly! Reviewed by: bschmidt (for iwn)
2012-04-15 20:29:39 +00:00
int tid;
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
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
baparamset = LE_READ_2(frm+2);
code = LE_READ_2(frm+4);
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
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
tid = MS(baparamset, IEEE80211_DELBAPS_TID);
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
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_11N, ni,
"recv DELBA: baparamset 0x%x (tid %d initiator %d) "
"code %d", baparamset, tid,
MS(baparamset, IEEE80211_DELBAPS_INIT), code);
if ((baparamset & IEEE80211_DELBAPS_INIT) == 0) {
Migrate the net80211 TX aggregation state to be from per-AC to per-TID. TODO: * Test mwl(4) more thoroughly! Reviewed by: bschmidt (for iwn)
2012-04-15 20:29:39 +00:00
tap = &ni->ni_tx_ampdu[tid];
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
ic->ic_addba_stop(ni, tap);
} else {
rap = &ni->ni_rx_ampdu[tid];
ic->ic_ampdu_rx_stop(ni, rap);
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
}
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
return 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
}
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
static int
ht_recv_action_ht_txchwidth(struct ieee80211_node *ni,
const struct ieee80211_frame *wh,
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
const uint8_t *frm, const uint8_t *efrm)
{
int chw;
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
chw = (frm[2] == IEEE80211_A_HT_TXCHWIDTH_2040) ? 40 : 20;
IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_11N, ni,
"%s: HT txchwidth, width %d%s",
__func__, chw, ni->ni_chw != chw ? "*" : "");
if (chw != ni->ni_chw) {
ni->ni_chw = chw;
/* XXX notify on change */
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
}
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
return 0;
}
static int
ht_recv_action_ht_mimopwrsave(struct ieee80211_node *ni,
const struct ieee80211_frame *wh,
const uint8_t *frm, const uint8_t *efrm)
{
const struct ieee80211_action_ht_mimopowersave *mps =
(const struct ieee80211_action_ht_mimopowersave *) frm;
/* XXX check iv_htcaps */
if (mps->am_control & IEEE80211_A_HT_MIMOPWRSAVE_ENA)
ni->ni_flags |= IEEE80211_NODE_MIMO_PS;
else
ni->ni_flags &= ~IEEE80211_NODE_MIMO_PS;
if (mps->am_control & IEEE80211_A_HT_MIMOPWRSAVE_MODE)
ni->ni_flags |= IEEE80211_NODE_MIMO_RTS;
else
ni->ni_flags &= ~IEEE80211_NODE_MIMO_RTS;
/* XXX notify on change */
IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_11N, ni,
"%s: HT MIMO PS (%s%s)", __func__,
(ni->ni_flags & IEEE80211_NODE_MIMO_PS) ? "on" : "off",
(ni->ni_flags & IEEE80211_NODE_MIMO_RTS) ? "+rts" : ""
);
return 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
}
/*
* Transmit processing.
*/
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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 if A-MPDU should be requested/enabled for a stream.
* We require a traffic rate above a per-AC threshold and we
* also handle backoff from previous failed attempts.
*
* Drivers may override this method to bring in information
* such as link state conditions in making the decision.
*/
static int
ieee80211_ampdu_enable(struct ieee80211_node *ni,
struct ieee80211_tx_ampdu *tap)
{
struct ieee80211vap *vap = ni->ni_vap;
Migrate the net80211 TX aggregation state to be from per-AC to per-TID. TODO: * Test mwl(4) more thoroughly! Reviewed by: bschmidt (for iwn)
2012-04-15 20:29:39 +00:00
if (tap->txa_avgpps <
vap->iv_ampdu_mintraffic[TID_TO_WME_AC(tap->txa_tid)])
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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 0;
/* XXX check rssi? */
if (tap->txa_attempts >= ieee80211_addba_maxtries &&
ticks < tap->txa_nextrequest) {
/*
* Don't retry too often; txa_nextrequest is set
* to the minimum interval we'll retry after
* ieee80211_addba_maxtries failed attempts are made.
*/
return 0;
}
IEEE80211_NOTE(vap, IEEE80211_MSG_11N, ni,
Migrate the net80211 TX aggregation state to be from per-AC to per-TID. TODO: * Test mwl(4) more thoroughly! Reviewed by: bschmidt (for iwn)
2012-04-15 20:29:39 +00:00
"enable AMPDU on tid %d (%s), avgpps %d pkts %d",
tap->txa_tid, ieee80211_wme_acnames[TID_TO_WME_AC(tap->txa_tid)],
tap->txa_avgpps, tap->txa_pkts);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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 1;
}
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
/*
* Request A-MPDU tx aggregation. Setup local state and
* issue an ADDBA request. BA use will only happen after
* the other end replies with ADDBA response.
*/
int
ieee80211_ampdu_request(struct ieee80211_node *ni,
struct ieee80211_tx_ampdu *tap)
{
struct ieee80211com *ic = ni->ni_ic;
Fix a couple of bugs with 802.11n: o Process the BAR frame on the adhoc, mesh and sta modes o Fix the format of the ADDBA reply frame o Fix references to the spec section numbers Also, print the all the MCS rates in bootverbose. Sponsored by: iXsystems, Inc. Obtained from: //depot/user/rpaulo/80211n/...
2010-03-18 11:06:38 +00:00
uint16_t args[5];
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 tid, dialogtoken;
static int tokens = 0; /* XXX */
/* XXX locking */
if ((tap->txa_flags & IEEE80211_AGGR_SETUP) == 0) {
/* do deferred setup of state */
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
ampdu_tx_setup(tap);
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
}
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
/* XXX hack for not doing proper locking */
tap->txa_flags &= ~IEEE80211_AGGR_NAK;
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
dialogtoken = (tokens+1) % 63; /* XXX */
Migrate the net80211 TX aggregation state to be from per-AC to per-TID. TODO: * Test mwl(4) more thoroughly! Reviewed by: bschmidt (for iwn)
2012-04-15 20:29:39 +00:00
tid = tap->txa_tid;
Cleanup starting seq# for tx ampdu: o use txa_start to form the addba request and purge txa_seqstart o fill txa_start before calling ic_addba_request to permit drivers to override when they handle seq# generation (e.g. mwl)
2008-09-21 22:22:28 +00:00
tap->txa_start = ni->ni_txseqs[tid];
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
args[0] = dialogtoken;
Fix a couple of bugs with 802.11n: o Process the BAR frame on the adhoc, mesh and sta modes o Fix the format of the ADDBA reply frame o Fix references to the spec section numbers Also, print the all the MCS rates in bootverbose. Sponsored by: iXsystems, Inc. Obtained from: //depot/user/rpaulo/80211n/...
2010-03-18 11:06:38 +00:00
args[1] = 0; /* NB: status code not used */
args[2] = IEEE80211_BAPS_POLICY_IMMEDIATE
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
| SM(tid, IEEE80211_BAPS_TID)
| SM(IEEE80211_AGGR_BAWMAX, IEEE80211_BAPS_BUFSIZ)
;
Fix a couple of bugs with 802.11n: o Process the BAR frame on the adhoc, mesh and sta modes o Fix the format of the ADDBA reply frame o Fix references to the spec section numbers Also, print the all the MCS rates in bootverbose. Sponsored by: iXsystems, Inc. Obtained from: //depot/user/rpaulo/80211n/...
2010-03-18 11:06:38 +00:00
args[3] = 0; /* batimeout */
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: do first so there's no race against reply */
Fix a couple of bugs with 802.11n: o Process the BAR frame on the adhoc, mesh and sta modes o Fix the format of the ADDBA reply frame o Fix references to the spec section numbers Also, print the all the MCS rates in bootverbose. Sponsored by: iXsystems, Inc. Obtained from: //depot/user/rpaulo/80211n/...
2010-03-18 11:06:38 +00:00
if (!ic->ic_addba_request(ni, tap, dialogtoken, args[2], args[3])) {
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
/* unable to setup state, don't make request */
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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_NOTE(ni->ni_vap, IEEE80211_MSG_11N,
Migrate the net80211 TX aggregation state to be from per-AC to per-TID. TODO: * Test mwl(4) more thoroughly! Reviewed by: bschmidt (for iwn)
2012-04-15 20:29:39 +00:00
ni, "%s: could not setup BA stream for TID %d AC %d",
__func__, tap->txa_tid, TID_TO_WME_AC(tap->txa_tid));
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
/* defer next try so we don't slam the driver with requests */
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
tap->txa_attempts = ieee80211_addba_maxtries;
/* NB: check in case driver wants to override */
if (tap->txa_nextrequest <= ticks)
tap->txa_nextrequest = ticks + ieee80211_addba_backoff;
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
return 0;
}
tokens = dialogtoken; /* allocate token */
Cleanup starting seq# for tx ampdu: o use txa_start to form the addba request and purge txa_seqstart o fill txa_start before calling ic_addba_request to permit drivers to override when they handle seq# generation (e.g. mwl)
2008-09-21 22:22:28 +00:00
/* NB: after calling ic_addba_request so driver can set txa_start */
Fix a couple of bugs with 802.11n: o Process the BAR frame on the adhoc, mesh and sta modes o Fix the format of the ADDBA reply frame o Fix references to the spec section numbers Also, print the all the MCS rates in bootverbose. Sponsored by: iXsystems, Inc. Obtained from: //depot/user/rpaulo/80211n/...
2010-03-18 11:06:38 +00:00
args[4] = SM(tap->txa_start, IEEE80211_BASEQ_START)
use the current left edge of the BA window when forming ADDBA request so an existing session is re-established with the correct seq#
2008-05-11 23:27:57 +00:00
| SM(0, IEEE80211_BASEQ_FRAG)
;
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
return ic->ic_send_action(ni, IEEE80211_ACTION_CAT_BA,
IEEE80211_ACTION_BA_ADDBA_REQUEST, args);
}
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
/*
* Terminate an AMPDU tx stream. State is reclaimed
* and the peer notified with a DelBA Action frame.
*/
void
change ieee80211_ampdu_stop to take an explicit reason code
2008-09-21 23:20:04 +00:00
ieee80211_ampdu_stop(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap,
int reason)
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
{
struct ieee80211com *ic = ni->ni_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
struct ieee80211vap *vap = ni->ni_vap;
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
uint16_t args[4];
/* XXX locking */
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
tap->txa_flags &= ~IEEE80211_AGGR_BARPEND;
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
if (IEEE80211_AMPDU_RUNNING(tap)) {
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_11N,
Migrate the net80211 TX aggregation state to be from per-AC to per-TID. TODO: * Test mwl(4) more thoroughly! Reviewed by: bschmidt (for iwn)
2012-04-15 20:29:39 +00:00
ni, "%s: stop BA stream for TID %d (reason %d)",
__func__, tap->txa_tid, reason);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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_stats.is_ampdu_stop++;
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
ic->ic_addba_stop(ni, tap);
Migrate the net80211 TX aggregation state to be from per-AC to per-TID. TODO: * Test mwl(4) more thoroughly! Reviewed by: bschmidt (for iwn)
2012-04-15 20:29:39 +00:00
args[0] = tap->txa_tid;
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
args[1] = IEEE80211_DELBAPS_INIT;
change ieee80211_ampdu_stop to take an explicit reason code
2008-09-21 23:20:04 +00:00
args[2] = reason; /* XXX reason code */
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
ic->ic_send_action(ni, IEEE80211_ACTION_CAT_BA,
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
IEEE80211_ACTION_BA_DELBA, args);
} 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
IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_11N,
Migrate the net80211 TX aggregation state to be from per-AC to per-TID. TODO: * Test mwl(4) more thoroughly! Reviewed by: bschmidt (for iwn)
2012-04-15 20:29:39 +00:00
ni, "%s: BA stream for TID %d not running (reason %d)",
__func__, tap->txa_tid, reason);
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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_stats.is_ampdu_stop_failed++;
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
}
}
Fix some corner cases in the ieee80211_send_bar() handling. * If the first call succeeded but failed to transmit, a timer would reschedule it via bar_timeout(). Unfortunately bar_timeout() didn't check the return value from the ieee80211_send_bar() reattempt and if that failed (eg the driver ic_raw_xmit() failed), it would never re-arm the timer. * If BARPEND is cleared (which ieee80211_send_bar() will do if it can't TX), then re-arming the timer isn't enough - once bar_timeout() occurs, it'll see BARPEND is 0 and not run through the rest of the routine. So when rearming the timer, also set that flag. * If the TX wasn't occuring, bar_tx_complete() wouldn't be called and the driver callback wouldn't be called either. So the driver had no idea that the BAR TX attempt had failed. In the ath(4) case, TX would stay paused. (There's no callback to indicate that BAR TX had failed or not; only a "BAR TX was attempted". That's a separate, later problem.) So call the driver callback (ic_bar_response()) before the ADDBA session is torn down, so it has a chance of being notified that things didn't quite go to plan. I've verified that yes, this does suspend traffic for ath(4), retry BAR TX even if the driver is failing ic_raw_xmit(), and then eventually giving up and sending a DELBA. I'll address the "out of ath_buf" issue in ath(4) in a subsequent commit - this commit just fixes the edge case where any driver is (way) out of internal buffers/descriptors and fails frame TX. PR: kern/168170 Reviewed by: bschmidt MFC after: 1 month
2012-05-22 19:37:12 +00:00
/* XXX */
static void bar_start_timer(struct ieee80211_tx_ampdu *tap);
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
static void
bar_timeout(void *arg)
{
struct ieee80211_tx_ampdu *tap = arg;
struct ieee80211_node *ni = tap->txa_ni;
KASSERT((tap->txa_flags & IEEE80211_AGGR_XCHGPEND) == 0,
("bar/addba collision, flags 0x%x", tap->txa_flags));
IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_11N,
ni, "%s: tid %u flags 0x%x attempts %d", __func__,
Migrate the net80211 TX aggregation state to be from per-AC to per-TID. TODO: * Test mwl(4) more thoroughly! Reviewed by: bschmidt (for iwn)
2012-04-15 20:29:39 +00:00
tap->txa_tid, tap->txa_flags, tap->txa_attempts);
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
/* guard against race with bar_tx_complete */
if ((tap->txa_flags & IEEE80211_AGGR_BARPEND) == 0)
return;
/* XXX ? */
Add some statistics to track BAR TX.
2012-04-08 04:51:25 +00:00
if (tap->txa_attempts >= ieee80211_bar_maxtries) {
Fix some corner cases in the ieee80211_send_bar() handling. * If the first call succeeded but failed to transmit, a timer would reschedule it via bar_timeout(). Unfortunately bar_timeout() didn't check the return value from the ieee80211_send_bar() reattempt and if that failed (eg the driver ic_raw_xmit() failed), it would never re-arm the timer. * If BARPEND is cleared (which ieee80211_send_bar() will do if it can't TX), then re-arming the timer isn't enough - once bar_timeout() occurs, it'll see BARPEND is 0 and not run through the rest of the routine. So when rearming the timer, also set that flag. * If the TX wasn't occuring, bar_tx_complete() wouldn't be called and the driver callback wouldn't be called either. So the driver had no idea that the BAR TX attempt had failed. In the ath(4) case, TX would stay paused. (There's no callback to indicate that BAR TX had failed or not; only a "BAR TX was attempted". That's a separate, later problem.) So call the driver callback (ic_bar_response()) before the ADDBA session is torn down, so it has a chance of being notified that things didn't quite go to plan. I've verified that yes, this does suspend traffic for ath(4), retry BAR TX even if the driver is failing ic_raw_xmit(), and then eventually giving up and sending a DELBA. I'll address the "out of ath_buf" issue in ath(4) in a subsequent commit - this commit just fixes the edge case where any driver is (way) out of internal buffers/descriptors and fails frame TX. PR: kern/168170 Reviewed by: bschmidt MFC after: 1 month
2012-05-22 19:37:12 +00:00
struct ieee80211com *ic = ni->ni_ic;
Add some statistics to track BAR TX.
2012-04-08 04:51:25 +00:00
ni->ni_vap->iv_stats.is_ampdu_bar_tx_fail++;
Fix some corner cases in the ieee80211_send_bar() handling. * If the first call succeeded but failed to transmit, a timer would reschedule it via bar_timeout(). Unfortunately bar_timeout() didn't check the return value from the ieee80211_send_bar() reattempt and if that failed (eg the driver ic_raw_xmit() failed), it would never re-arm the timer. * If BARPEND is cleared (which ieee80211_send_bar() will do if it can't TX), then re-arming the timer isn't enough - once bar_timeout() occurs, it'll see BARPEND is 0 and not run through the rest of the routine. So when rearming the timer, also set that flag. * If the TX wasn't occuring, bar_tx_complete() wouldn't be called and the driver callback wouldn't be called either. So the driver had no idea that the BAR TX attempt had failed. In the ath(4) case, TX would stay paused. (There's no callback to indicate that BAR TX had failed or not; only a "BAR TX was attempted". That's a separate, later problem.) So call the driver callback (ic_bar_response()) before the ADDBA session is torn down, so it has a chance of being notified that things didn't quite go to plan. I've verified that yes, this does suspend traffic for ath(4), retry BAR TX even if the driver is failing ic_raw_xmit(), and then eventually giving up and sending a DELBA. I'll address the "out of ath_buf" issue in ath(4) in a subsequent commit - this commit just fixes the edge case where any driver is (way) out of internal buffers/descriptors and fails frame TX. PR: kern/168170 Reviewed by: bschmidt MFC after: 1 month
2012-05-22 19:37:12 +00:00
/*
* If (at least) the last BAR TX timeout was due to
* an ieee80211_send_bar() failures, then we need
* to make sure we notify the driver that a BAR
* TX did occur and fail. This gives the driver
* a chance to undo any queue pause that may
* have occured.
*/
ic->ic_bar_response(ni, tap, 1);
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
ieee80211_ampdu_stop(ni, tap, IEEE80211_REASON_TIMEOUT);
Add some statistics to track BAR TX.
2012-04-08 04:51:25 +00:00
} else {
ni->ni_vap->iv_stats.is_ampdu_bar_tx_retry++;
Fix some corner cases in the ieee80211_send_bar() handling. * If the first call succeeded but failed to transmit, a timer would reschedule it via bar_timeout(). Unfortunately bar_timeout() didn't check the return value from the ieee80211_send_bar() reattempt and if that failed (eg the driver ic_raw_xmit() failed), it would never re-arm the timer. * If BARPEND is cleared (which ieee80211_send_bar() will do if it can't TX), then re-arming the timer isn't enough - once bar_timeout() occurs, it'll see BARPEND is 0 and not run through the rest of the routine. So when rearming the timer, also set that flag. * If the TX wasn't occuring, bar_tx_complete() wouldn't be called and the driver callback wouldn't be called either. So the driver had no idea that the BAR TX attempt had failed. In the ath(4) case, TX would stay paused. (There's no callback to indicate that BAR TX had failed or not; only a "BAR TX was attempted". That's a separate, later problem.) So call the driver callback (ic_bar_response()) before the ADDBA session is torn down, so it has a chance of being notified that things didn't quite go to plan. I've verified that yes, this does suspend traffic for ath(4), retry BAR TX even if the driver is failing ic_raw_xmit(), and then eventually giving up and sending a DELBA. I'll address the "out of ath_buf" issue in ath(4) in a subsequent commit - this commit just fixes the edge case where any driver is (way) out of internal buffers/descriptors and fails frame TX. PR: kern/168170 Reviewed by: bschmidt MFC after: 1 month
2012-05-22 19:37:12 +00:00
if (ieee80211_send_bar(ni, tap, tap->txa_seqpending) != 0) {
Add some further BAR TX debugging; it was useful when figuring out when BAR TX was actually failing.
2012-10-28 04:18:49 +00:00
IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_11N,
ni, "%s: failed to TX, starting timer\n",
__func__);
Fix some corner cases in the ieee80211_send_bar() handling. * If the first call succeeded but failed to transmit, a timer would reschedule it via bar_timeout(). Unfortunately bar_timeout() didn't check the return value from the ieee80211_send_bar() reattempt and if that failed (eg the driver ic_raw_xmit() failed), it would never re-arm the timer. * If BARPEND is cleared (which ieee80211_send_bar() will do if it can't TX), then re-arming the timer isn't enough - once bar_timeout() occurs, it'll see BARPEND is 0 and not run through the rest of the routine. So when rearming the timer, also set that flag. * If the TX wasn't occuring, bar_tx_complete() wouldn't be called and the driver callback wouldn't be called either. So the driver had no idea that the BAR TX attempt had failed. In the ath(4) case, TX would stay paused. (There's no callback to indicate that BAR TX had failed or not; only a "BAR TX was attempted". That's a separate, later problem.) So call the driver callback (ic_bar_response()) before the ADDBA session is torn down, so it has a chance of being notified that things didn't quite go to plan. I've verified that yes, this does suspend traffic for ath(4), retry BAR TX even if the driver is failing ic_raw_xmit(), and then eventually giving up and sending a DELBA. I'll address the "out of ath_buf" issue in ath(4) in a subsequent commit - this commit just fixes the edge case where any driver is (way) out of internal buffers/descriptors and fails frame TX. PR: kern/168170 Reviewed by: bschmidt MFC after: 1 month
2012-05-22 19:37:12 +00:00
/*
* If ieee80211_send_bar() fails here, the
* timer may have stopped and/or the pending
* flag may be clear. Because of this,
* fake the BARPEND and reset the timer.
* A retransmission attempt will then occur
* during the next timeout.
*/
/* XXX locking */
tap->txa_flags |= IEEE80211_AGGR_BARPEND;
bar_start_timer(tap);
}
Add some statistics to track BAR TX.
2012-04-08 04:51:25 +00:00
}
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
}
static void
bar_start_timer(struct ieee80211_tx_ampdu *tap)
{
Add some further BAR TX debugging; it was useful when figuring out when BAR TX was actually failing.
2012-10-28 04:18:49 +00:00
IEEE80211_NOTE(tap->txa_ni->ni_vap, IEEE80211_MSG_11N,
tap->txa_ni,
"%s: called",
__func__);
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
callout_reset(&tap->txa_timer, ieee80211_bar_timeout, bar_timeout, tap);
}
static void
bar_stop_timer(struct ieee80211_tx_ampdu *tap)
{
Add some further BAR TX debugging; it was useful when figuring out when BAR TX was actually failing.
2012-10-28 04:18:49 +00:00
IEEE80211_NOTE(tap->txa_ni->ni_vap, IEEE80211_MSG_11N,
tap->txa_ni,
"%s: called",
__func__);
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
callout_stop(&tap->txa_timer);
}
static void
bar_tx_complete(struct ieee80211_node *ni, void *arg, int status)
{
struct ieee80211_tx_ampdu *tap = arg;
IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_11N,
ni, "%s: tid %u flags 0x%x pending %d status %d",
Migrate the net80211 TX aggregation state to be from per-AC to per-TID. TODO: * Test mwl(4) more thoroughly! Reviewed by: bschmidt (for iwn)
2012-04-15 20:29:39 +00:00
__func__, tap->txa_tid, tap->txa_flags,
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
callout_pending(&tap->txa_timer), status);
Add some statistics to track BAR TX.
2012-04-08 04:51:25 +00:00
ni->ni_vap->iv_stats.is_ampdu_bar_tx++;
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
/* XXX locking */
if ((tap->txa_flags & IEEE80211_AGGR_BARPEND) &&
callout_pending(&tap->txa_timer)) {
struct ieee80211com *ic = ni->ni_ic;
Fix BAR frame TX completion - successful transmission is indicated by a status of 0. Approved by: re (kib)
2011-08-16 09:07:59 +00:00
if (status == 0) /* ACK'd */
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
bar_stop_timer(tap);
ic->ic_bar_response(ni, tap, status);
/* NB: just let timer expire so we pace requests */
}
}
static void
ieee80211_bar_response(struct ieee80211_node *ni,
struct ieee80211_tx_ampdu *tap, int status)
{
Add some further BAR TX debugging; it was useful when figuring out when BAR TX was actually failing.
2012-10-28 04:18:49 +00:00
IEEE80211_NOTE(tap->txa_ni->ni_vap, IEEE80211_MSG_11N,
tap->txa_ni,
"%s: called",
__func__);
Fix BAR frame TX completion - successful transmission is indicated by a status of 0. Approved by: re (kib)
2011-08-16 09:07:59 +00:00
if (status == 0) { /* got ACK */
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_11N,
ni, "BAR moves BA win <%u:%u> (%u frames) txseq %u tid %u",
tap->txa_start,
IEEE80211_SEQ_ADD(tap->txa_start, tap->txa_wnd-1),
tap->txa_qframes, tap->txa_seqpending,
Migrate the net80211 TX aggregation state to be from per-AC to per-TID. TODO: * Test mwl(4) more thoroughly! Reviewed by: bschmidt (for iwn)
2012-04-15 20:29:39 +00:00
tap->txa_tid);
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
/* NB: timer already stopped in bar_tx_complete */
tap->txa_start = tap->txa_seqpending;
tap->txa_flags &= ~IEEE80211_AGGR_BARPEND;
}
}
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
/*
* Transmit a BAR frame to the specified node. The
* BAR contents are drawn from the supplied aggregation
* state associated with the node.
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
*
* NB: we only handle immediate ACK w/ compressed bitmap.
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
ieee80211_send_bar(struct ieee80211_node *ni,
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
struct ieee80211_tx_ampdu *tap, ieee80211_seq seq)
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
#define senderr(_x, _v) do { vap->iv_stats._v++; ret = _x; goto bad; } while (0)
struct ieee80211vap *vap = ni->ni_vap;
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 ieee80211com *ic = ni->ni_ic;
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
struct ieee80211_frame_bar *bar;
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;
uint16_t barctl, barseqctl;
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
uint8_t *frm;
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 tid, ret;
Add some further BAR TX debugging; it was useful when figuring out when BAR TX was actually failing.
2012-10-28 04:18:49 +00:00
IEEE80211_NOTE(tap->txa_ni->ni_vap, IEEE80211_MSG_11N,
tap->txa_ni,
"%s: called",
__func__);
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
if ((tap->txa_flags & IEEE80211_AGGR_RUNNING) == 0) {
/* no ADDBA response, should not happen */
/* XXX stat+msg */
return EINVAL;
}
/* XXX locking */
bar_stop_timer(tap);
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_ref_node(ni);
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
m = ieee80211_getmgtframe(&frm, ic->ic_headroom, sizeof(*bar));
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 (m == NULL)
senderr(ENOMEM, is_tx_nobuf);
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
if (!ieee80211_add_callback(m, bar_tx_complete, tap)) {
m_freem(m);
senderr(ENOMEM, is_tx_nobuf); /* XXX */
/* NOTREACHED */
}
bar = mtod(m, struct ieee80211_frame_bar *);
bar->i_fc[0] = IEEE80211_FC0_VERSION_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
IEEE80211_FC0_TYPE_CTL | IEEE80211_FC0_SUBTYPE_BAR;
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
bar->i_fc[1] = 0;
IEEE80211_ADDR_COPY(bar->i_ra, ni->ni_macaddr);
IEEE80211_ADDR_COPY(bar->i_ta, vap->iv_myaddr);
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
Migrate the net80211 TX aggregation state to be from per-AC to per-TID. TODO: * Test mwl(4) more thoroughly! Reviewed by: bschmidt (for iwn)
2012-04-15 20:29:39 +00:00
tid = tap->txa_tid;
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
barctl = (tap->txa_flags & IEEE80211_AGGR_IMMEDIATE ?
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
0 : IEEE80211_BAR_NOACK)
| IEEE80211_BAR_COMP
| SM(tid, IEEE80211_BAR_TID)
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
;
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
barseqctl = SM(seq, IEEE80211_BAR_SEQ_START);
/* NB: known to have proper alignment */
bar->i_ctl = htole16(barctl);
bar->i_seq = htole16(barseqctl);
m->m_pkthdr.len = m->m_len = sizeof(struct ieee80211_frame_bar);
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
M_WME_SETAC(m, 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
IEEE80211_NODE_STAT(ni, tx_mgmt); /* XXX tx_ctl? */
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
/* XXX locking */
/* init/bump attempts counter */
if ((tap->txa_flags & IEEE80211_AGGR_BARPEND) == 0)
tap->txa_attempts = 1;
else
tap->txa_attempts++;
tap->txa_seqpending = seq;
tap->txa_flags |= IEEE80211_AGGR_BARPEND;
IEEE80211_NOTE(vap, IEEE80211_MSG_DEBUG | IEEE80211_MSG_11N,
ni, "send BAR: tid %u ctl 0x%x start %u (attempt %d)",
tid, barctl, seq, tap->txa_attempts);
Correctly handle BAR TX failures. On a TX failure, ic_raw_xmit will still call ieee80211_node_free(). There's no need to call it here. Submitted by: moonlightakkiy@yahoo.ca Approved by: re (kib)
2011-08-19 15:21:13 +00:00
/*
* ic_raw_xmit will free the node reference
* regardless of queue/TX success or failure.
*/
Bring over my initial work from the net80211 TX locking branch. This patchset implements a new TX lock, covering both the per-VAP (and thus per-node) TX locking and the serialisation through to the underlying physical device. This implements the hard requirement that frames to the underlying physical device are scheduled to the underlying device in the same order that they are processed at the VAP layer. This includes adding extra encapsulation state (such as sequence numbers and CCMP IV numbers.) Any order mismatch here will result in dropped packets at the receiver. There are multiple transmit contexts from the upper protocol layers as well as the "raw" interface via the management and BPF transmit paths. All of these need to be correctly serialised or bad behaviour will result under load. The specifics: * add a new TX IC lock - it will eventually just be used for serialisation to the underlying physical device but for now it's used for both the VAP encapsulation/serialisation and the physical device dispatch. This lock is specifically non-recursive. * Methodize the parent transmit, vap transmit and ic_raw_xmit function pointers; use lock assertions in the parent/vap transmit routines. * Add a lock assertion in ieee80211_encap() - the TX lock must be held here to guarantee sensible behaviour. * Refactor out the packet sending code from ieee80211_start() - now ieee80211_start() is just a loop over the ifnet queue and it dispatches each VAP packet send through ieee80211_start_pkt(). Yes, I will likely rename ieee80211_start_pkt() to something that better reflects its status as a VAP packet transmit path. More on that later. * Add locking around the management and BAR TX sending - to ensure that encapsulation and TX are done hand-in-hand. * Add locking in the mesh code - again, to ensure that encapsulation and mesh transmit are done hand-in-hand. * Add locking around the power save queue and ageq handling, when dispatching to the parent interface. * Add locking around the WDS handoff. * Add a note in the mesh dispatch code that the TX path needs to be re-thought-out - right now it's doing a direct parent device transmit rather than going via the vap layer. It may "work", but it's likely incorrect (as it bypasses any possible per-node power save and aggregation handling.) Why not a per-VAP or per-node lock? Because in order to ensure per-VAP ordering, we'd have to hold the VAP lock across parent->if_transmit(). There are a few problems with this: * There's some state being setup during each driver transmit - specifically, the encryption encap / CCMP IV setup. That should eventually be dragged back into the encapsulation phase but for now it lives in the driver TX path. This should be locked. * Two drivers (ath, iwn) re-use the node->ni_txseqs array in order to allocate sequence numbers when doing transmit aggregation. This should also be locked. * Drivers may have multiple frames queued already - so when one calls if_transmit(), it may end up dispatching multiple frames for different VAPs/nodes, each needing a different lock when handling that particular end destination. So to be "correct" locking-wise, we'd end up needing to grab a VAP or node lock inside the driver TX path when setting up crypto / AMPDU sequence numbers, and we may already _have_ a TX lock held - mostly for the same destination vap/node, but sometimes it'll be for others. That could lead to LORs and thus deadlocks. So for now, I'm sticking with an IC TX lock. It has the advantage of papering over the above and it also has the added advantage that I can assert that it's being held when doing a parent device transmit. I'll look at splitting the locks out a bit more later on. General outstanding net80211 TX path issues / TODO: * Look into separating out the VAP serialisation and the IC handoff. It's going to be tricky as parent->if_transmit() doesn't give me the opportunity to split queuing from driver dispatch. See above. * Work with monthadar to fix up the mesh transmit path so it doesn't go via the parent interface when retransmitting frames. * Push the encryption handling back into the driver, if it's at all architectually sane to do so. I know it's possible - it's what mac80211 in Linux does. * Make ieee80211_raw_xmit() queue a frame into VAP or parent queue rather than doing a short-cut direct into the driver. There are QoS issues here - you do want your management frames to be encapsulated and pushed onto the stack sooner than the (large, bursty) amount of data frames that are queued. But there has to be a saner way to do this. * Fragments are still broken - drivers need to be upgraded to an if_transmit() implementation and then fragmentation handling needs to be properly fixed. Tested: * STA - AR5416, AR9280, Intel 5300 abgn wifi * Hostap - AR5416, AR9160, AR9280 * Mesh - some testing by monthadar@, more to come.
2013-03-08 20:23:55 +00:00
IEEE80211_TX_LOCK(ic);
ret = ieee80211_raw_output(vap, ni, m, NULL);
IEEE80211_TX_UNLOCK(ic);
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
if (ret != 0) {
Add some further BAR TX debugging; it was useful when figuring out when BAR TX was actually failing.
2012-10-28 04:18:49 +00:00
IEEE80211_NOTE(vap, IEEE80211_MSG_DEBUG | IEEE80211_MSG_11N,
ni, "send BAR: failed: (ret = %d)\n",
ret);
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
/* xmit failed, clear state flag */
tap->txa_flags &= ~IEEE80211_AGGR_BARPEND;
Add some statistics to track BAR TX.
2012-04-08 04:51:25 +00:00
vap->iv_stats.is_ampdu_bar_tx_fail++;
Correctly handle BAR TX failures. On a TX failure, ic_raw_xmit will still call ieee80211_node_free(). There's no need to call it here. Submitted by: moonlightakkiy@yahoo.ca Approved by: re (kib)
2011-08-19 15:21:13 +00:00
return ret;
Sync BAR frame handling with out of tree work: o correct BAR frame construction for AMPDU o retransmit BAR frames until ACK'd or timeout (use tunables to control behaviour, default is very aggressive) o defer seq# update until BAR frame is ACK'd o add BAR response handling callback for driver to interpose and push new state to device or push pending aggregates While here also: o add backpointer to node in the per-tid tx aggregation data structure o move ampdu tx state setup/teardown work to separate functions
2008-10-25 23:58:59 +00:00
}
/* XXX hack against tx complete happening before timer is started */
if (tap->txa_flags & IEEE80211_AGGR_BARPEND)
bar_start_timer(tap);
return 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
bad:
Add some further BAR TX debugging; it was useful when figuring out when BAR TX was actually failing.
2012-10-28 04:18:49 +00:00
IEEE80211_NOTE(tap->txa_ni->ni_vap, IEEE80211_MSG_11N,
tap->txa_ni,
"%s: bad! ret=%d",
__func__, ret);
Add some statistics to track BAR TX.
2012-04-08 04:51:25 +00:00
vap->iv_stats.is_ampdu_bar_tx_fail++;
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_free_node(ni);
return ret;
#undef senderr
}
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
static int
ht_action_output(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
{
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
struct ieee80211_bpf_params params;
memset(&params, 0, sizeof(params));
params.ibp_pri = WME_AC_VO;
params.ibp_rate0 = ni->ni_txparms->mgmtrate;
/* NB: we know all frames are unicast */
params.ibp_try0 = ni->ni_txparms->maxretry;
params.ibp_power = ni->ni_txpower;
return ieee80211_mgmt_output(ni, m, IEEE80211_FC0_SUBTYPE_ACTION,
&params);
}
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
#define ADDSHORT(frm, v) do { \
frm[0] = (v) & 0xff; \
frm[1] = (v) >> 8; \
frm += 2; \
} while (0)
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
/*
* Send an action management frame. The arguments are stuff
* into a frame without inspection; the caller is assumed to
* prepare them carefully (e.g. based on the aggregation state).
*/
static int
ht_send_action_ba_addba(struct ieee80211_node *ni,
int category, int action, void *arg0)
{
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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;
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 ieee80211com *ic = ni->ni_ic;
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
uint16_t *args = arg0;
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;
uint8_t *frm;
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_11N, ni,
Fix a couple of bugs with 802.11n: o Process the BAR frame on the adhoc, mesh and sta modes o Fix the format of the ADDBA reply frame o Fix references to the spec section numbers Also, print the all the MCS rates in bootverbose. Sponsored by: iXsystems, Inc. Obtained from: //depot/user/rpaulo/80211n/...
2010-03-18 11:06:38 +00:00
"send ADDBA %s: dialogtoken %d status %d "
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
"baparamset 0x%x (tid %d) batimeout 0x%x baseqctl 0x%x",
(action == IEEE80211_ACTION_BA_ADDBA_REQUEST) ?
"request" : "response",
Fix a couple of bugs with 802.11n: o Process the BAR frame on the adhoc, mesh and sta modes o Fix the format of the ADDBA reply frame o Fix references to the spec section numbers Also, print the all the MCS rates in bootverbose. Sponsored by: iXsystems, Inc. Obtained from: //depot/user/rpaulo/80211n/...
2010-03-18 11:06:38 +00:00
args[0], args[1], args[2], MS(args[2], IEEE80211_BAPS_TID),
args[3], args[4]);
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
IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE,
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
"ieee80211_ref_node (%s:%u) %p<%s> refcnt %d\n", __func__, __LINE__,
ni, ether_sprintf(ni->ni_macaddr), ieee80211_node_refcnt(ni)+1);
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_ref_node(ni);
m = ieee80211_getmgtframe(&frm,
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
ic->ic_headroom + sizeof(struct ieee80211_frame),
sizeof(uint16_t) /* action+category */
/* XXX may action payload */
+ sizeof(struct ieee80211_action_ba_addbaresponse)
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
);
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
if (m != NULL) {
*frm++ = category;
*frm++ = action;
*frm++ = args[0]; /* dialog token */
Fix a couple of bugs with 802.11n: o Process the BAR frame on the adhoc, mesh and sta modes o Fix the format of the ADDBA reply frame o Fix references to the spec section numbers Also, print the all the MCS rates in bootverbose. Sponsored by: iXsystems, Inc. Obtained from: //depot/user/rpaulo/80211n/...
2010-03-18 11:06:38 +00:00
if (action == IEEE80211_ACTION_BA_ADDBA_RESPONSE)
ADDSHORT(frm, args[1]); /* status code */
ADDSHORT(frm, args[2]); /* baparamset */
ADDSHORT(frm, args[3]); /* batimeout */
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
if (action == IEEE80211_ACTION_BA_ADDBA_REQUEST)
Fix a couple of bugs with 802.11n: o Process the BAR frame on the adhoc, mesh and sta modes o Fix the format of the ADDBA reply frame o Fix references to the spec section numbers Also, print the all the MCS rates in bootverbose. Sponsored by: iXsystems, Inc. Obtained from: //depot/user/rpaulo/80211n/...
2010-03-18 11:06:38 +00:00
ADDSHORT(frm, args[4]); /* baseqctl */
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
m->m_pkthdr.len = m->m_len = frm - mtod(m, uint8_t *);
return ht_action_output(ni, m);
} else {
vap->iv_stats.is_tx_nobuf++;
ieee80211_free_node(ni);
return ENOMEM;
}
}
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
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
static int
ht_send_action_ba_delba(struct ieee80211_node *ni,
int category, int action, void *arg0)
{
struct ieee80211vap *vap = ni->ni_vap;
struct ieee80211com *ic = ni->ni_ic;
uint16_t *args = arg0;
struct mbuf *m;
uint16_t baparamset;
uint8_t *frm;
baparamset = SM(args[0], IEEE80211_DELBAPS_TID)
| args[1]
;
IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_11N, ni,
"send DELBA action: tid %d, initiator %d reason %d",
args[0], args[1], args[2]);
IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE,
"ieee80211_ref_node (%s:%u) %p<%s> refcnt %d\n", __func__, __LINE__,
ni, ether_sprintf(ni->ni_macaddr), ieee80211_node_refcnt(ni)+1);
ieee80211_ref_node(ni);
m = ieee80211_getmgtframe(&frm,
ic->ic_headroom + sizeof(struct ieee80211_frame),
sizeof(uint16_t) /* action+category */
/* XXX may action payload */
+ sizeof(struct ieee80211_action_ba_addbaresponse)
);
if (m != NULL) {
*frm++ = category;
*frm++ = action;
ADDSHORT(frm, baparamset);
ADDSHORT(frm, args[2]); /* reason code */
m->m_pkthdr.len = m->m_len = frm - mtod(m, uint8_t *);
return ht_action_output(ni, m);
} else {
vap->iv_stats.is_tx_nobuf++;
ieee80211_free_node(ni);
return ENOMEM;
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
}
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +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
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
static int
ht_send_action_ht_txchwidth(struct ieee80211_node *ni,
int category, int action, void *arg0)
{
struct ieee80211vap *vap = ni->ni_vap;
struct ieee80211com *ic = ni->ni_ic;
struct mbuf *m;
uint8_t *frm;
IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_11N, ni,
"send HT txchwidth: width %d",
IEEE80211_IS_CHAN_HT40(ni->ni_chan) ? 40 : 20);
IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE,
"ieee80211_ref_node (%s:%u) %p<%s> refcnt %d\n", __func__, __LINE__,
ni, ether_sprintf(ni->ni_macaddr), ieee80211_node_refcnt(ni)+1);
ieee80211_ref_node(ni);
m = ieee80211_getmgtframe(&frm,
ic->ic_headroom + sizeof(struct ieee80211_frame),
sizeof(uint16_t) /* action+category */
/* XXX may action payload */
+ sizeof(struct ieee80211_action_ba_addbaresponse)
);
if (m != NULL) {
*frm++ = category;
*frm++ = action;
*frm++ = IEEE80211_IS_CHAN_HT40(ni->ni_chan) ?
IEEE80211_A_HT_TXCHWIDTH_2040 :
IEEE80211_A_HT_TXCHWIDTH_20;
m->m_pkthdr.len = m->m_len = frm - mtod(m, uint8_t *);
return ht_action_output(ni, m);
} else {
vap->iv_stats.is_tx_nobuf++;
ieee80211_free_node(ni);
return ENOMEM;
}
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
}
Revamp 802.11 action frame handling: o add a new facility for components to register send+recv handlers o ieee80211_send_action and ieee80211_recv_action now use the registered handlers to dispatch operations o rev ieee80211_send_action api to enable passing arbitrary data o rev ieee80211_recv_action api to pass the 802.11 frame header as it may be difficult to locate o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling o update mwl for api rev Reviewed by: rpaulo Approved by: re (kensmith)
2009-07-05 17:59:19 +00:00
#undef ADDSHORT
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
/*
Fill hc_mcsset completely. Contrary to the rateset information in legacy frames the MCS Set field also contains TX capability information in cases where the number of available TX and RX spartial streams differ. Because a rateset doesn't contain that information we have to pull the those directly from the hardware capabilities.
2011-03-13 11:56:33 +00:00
* Construct the MCS bit mask for inclusion in an HT capabilities
* information element.
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
*/
Fill hc_mcsset completely. Contrary to the rateset information in legacy frames the MCS Set field also contains TX capability information in cases where the number of available TX and RX spartial streams differ. Because a rateset doesn't contain that information we have to pull the those directly from the hardware capabilities.
2011-03-13 11:56:33 +00:00
static void
ieee80211_set_mcsset(struct ieee80211com *ic, uint8_t *frm)
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;
Fill hc_mcsset completely. Contrary to the rateset information in legacy frames the MCS Set field also contains TX capability information in cases where the number of available TX and RX spartial streams differ. Because a rateset doesn't contain that information we have to pull the those directly from the hardware capabilities.
2011-03-13 11:56:33 +00:00
uint8_t txparams;
KASSERT((ic->ic_rxstream > 0 && ic->ic_rxstream <= 4),
("ic_rxstream %d out of range", ic->ic_rxstream));
KASSERT((ic->ic_txstream > 0 && ic->ic_txstream <= 4),
("ic_txstream %d out of range", ic->ic_txstream));
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
Fill hc_mcsset completely. Contrary to the rateset information in legacy frames the MCS Set field also contains TX capability information in cases where the number of available TX and RX spartial streams differ. Because a rateset doesn't contain that information we have to pull the those directly from the hardware capabilities.
2011-03-13 11:56:33 +00:00
for (i = 0; i < ic->ic_rxstream * 8; i++)
setbit(frm, i);
if ((ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40) &&
(ic->ic_htcaps & IEEE80211_HTC_RXMCS32))
setbit(frm, 32);
if (ic->ic_htcaps & IEEE80211_HTC_RXUNEQUAL) {
if (ic->ic_rxstream >= 2) {
for (i = 33; i <= 38; i++)
setbit(frm, i);
}
if (ic->ic_rxstream >= 3) {
for (i = 39; i <= 52; i++)
setbit(frm, i);
}
if (ic->ic_txstream >= 4) {
for (i = 53; i <= 76; i++)
setbit(frm, 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
}
}
Fill hc_mcsset completely. Contrary to the rateset information in legacy frames the MCS Set field also contains TX capability information in cases where the number of available TX and RX spartial streams differ. Because a rateset doesn't contain that information we have to pull the those directly from the hardware capabilities.
2011-03-13 11:56:33 +00:00
if (ic->ic_rxstream != ic->ic_txstream) {
txparams = 0x1; /* TX MCS set defined */
txparams |= 0x2; /* TX RX MCS not equal */
txparams |= (ic->ic_txstream - 1) << 2; /* num TX streams */
if (ic->ic_htcaps & IEEE80211_HTC_TXUNEQUAL)
txparams |= 0x16; /* TX unequal modulation sup */
} else
txparams = 0;
frm[12] = txparams;
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
}
/*
* Add body of an HTCAP information element.
*/
static uint8_t *
ieee80211_add_htcap_body(uint8_t *frm, struct ieee80211_node *ni)
{
#define ADDSHORT(frm, v) do { \
frm[0] = (v) & 0xff; \
frm[1] = (v) >> 8; \
frm += 2; \
} while (0)
Certain adapters have HT40 support on some but not all channels. The Intel 4965 devices for example have HT40 on 2GHz completely disabled but it is still supported for 5GHz. To handle that in sta mode we need to check if we can "upgrade" to a HT40 channel after the association, if that is not possible but we are still announcing support to the remote side we are left with a very flabby connection. Reviewed by: adrian
2011-06-04 15:05:32 +00:00
struct ieee80211com *ic = ni->ni_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
struct ieee80211vap *vap = ni->ni_vap;
Add a new field for extended HT capabilities. Submitted by: Alexander Egorenkov <egorenar at gmail.com> MFC after: 2 weeks Sponsored by: iXsystems, inc.
2010-03-23 12:03:09 +00:00
uint16_t caps, extcaps;
correct sta mode setup: adopt ap's ampdu density and max ampdu size instead of using local settings MFC after: 3 days
2007-11-23 06:14:32 +00:00
int rxmax, density;
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
/* HT capabilities */
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
caps = vap->iv_htcaps & 0xffff;
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
/*
* Note channel width depends on whether we are operating as
* a sta or not. When operating as a sta we are generating
* a request based on our desired configuration. Otherwise
* we are operational and the channel attributes identify
* how we've been setup (which might be different if a fixed
* channel is specified).
*/
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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_STA) {
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
/* override 20/40 use based on config */
iv_flags_ext is full, make room by moving HT-related flags to a new iv_flags_ht word
2009-06-07 22:00:22 +00:00
if (vap->iv_flags_ht & IEEE80211_FHT_USEHT40)
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
caps |= IEEE80211_HTCAP_CHWIDTH40;
else
caps &= ~IEEE80211_HTCAP_CHWIDTH40;
Attempt to address Bug #176201 - don't advertise what the AP announced to us. Instead, advertise what we can do based on what the AP says and what we're capped at by the VAP settings. For non-STA modes we still advertise what our VAP settings are. It may be that I've over-complicated this and instead of capping things we can just always announce what we're capable of. But this should at least stop the blatantly wrong handling of A-MPDU parameters. (I'll happily simplify things if someone can dig up a replacement, better compliant behaviour.) PR: kern/176201
2015-05-10 06:57:53 +00:00
/* Start by using the advertised settings */
correct sta mode setup: adopt ap's ampdu density and max ampdu size instead of using local settings MFC after: 3 days
2007-11-23 06:14:32 +00:00
rxmax = MS(ni->ni_htparam, IEEE80211_HTCAP_MAXRXAMPDU);
density = MS(ni->ni_htparam, IEEE80211_HTCAP_MPDUDENSITY);
Certain adapters have HT40 support on some but not all channels. The Intel 4965 devices for example have HT40 on 2GHz completely disabled but it is still supported for 5GHz. To handle that in sta mode we need to check if we can "upgrade" to a HT40 channel after the association, if that is not possible but we are still announcing support to the remote side we are left with a very flabby connection. Reviewed by: adrian
2011-06-04 15:05:32 +00:00
Attempt to address Bug #176201 - don't advertise what the AP announced to us. Instead, advertise what we can do based on what the AP says and what we're capped at by the VAP settings. For non-STA modes we still advertise what our VAP settings are. It may be that I've over-complicated this and instead of capping things we can just always announce what we're capable of. But this should at least stop the blatantly wrong handling of A-MPDU parameters. (I'll happily simplify things if someone can dig up a replacement, better compliant behaviour.) PR: kern/176201
2015-05-10 06:57:53 +00:00
/* Cap at VAP rxmax */
if (rxmax > vap->iv_ampdu_rxmax)
rxmax = vap->iv_ampdu_rxmax;
/*
* If the VAP ampdu density value greater, use that.
*
* (Larger density value == larger minimum gap between A-MPDU
* subframes.)
*/
if (vap->iv_ampdu_density > density)
density = vap->iv_ampdu_density;
Certain adapters have HT40 support on some but not all channels. The Intel 4965 devices for example have HT40 on 2GHz completely disabled but it is still supported for 5GHz. To handle that in sta mode we need to check if we can "upgrade" to a HT40 channel after the association, if that is not possible but we are still announcing support to the remote side we are left with a very flabby connection. Reviewed by: adrian
2011-06-04 15:05:32 +00:00
/*
* NB: Hardware might support HT40 on some but not all
* channels. We can't determine this earlier because only
* after association the channel is upgraded to HT based
* on the negotiated capabilities.
*/
if (ni->ni_chan != IEEE80211_CHAN_ANYC &&
findhtchan(ic, ni->ni_chan, IEEE80211_CHAN_HT40U) == NULL &&
findhtchan(ic, ni->ni_chan, IEEE80211_CHAN_HT40D) == NULL)
caps &= ~IEEE80211_HTCAP_CHWIDTH40;
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
} else {
/* override 20/40 use based on current channel */
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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 (IEEE80211_IS_CHAN_HT40(ni->ni_chan))
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
caps |= IEEE80211_HTCAP_CHWIDTH40;
else
caps &= ~IEEE80211_HTCAP_CHWIDTH40;
Attempt to address Bug #176201 - don't advertise what the AP announced to us. Instead, advertise what we can do based on what the AP says and what we're capped at by the VAP settings. For non-STA modes we still advertise what our VAP settings are. It may be that I've over-complicated this and instead of capping things we can just always announce what we're capable of. But this should at least stop the blatantly wrong handling of A-MPDU parameters. (I'll happily simplify things if someone can dig up a replacement, better compliant behaviour.) PR: kern/176201
2015-05-10 06:57:53 +00:00
/* XXX TODO should it start by using advertised settings? */
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
rxmax = vap->iv_ampdu_rxmax;
density = vap->iv_ampdu_density;
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
}
Attempt to address Bug #176201 - don't advertise what the AP announced to us. Instead, advertise what we can do based on what the AP says and what we're capped at by the VAP settings. For non-STA modes we still advertise what our VAP settings are. It may be that I've over-complicated this and instead of capping things we can just always announce what we're capable of. But this should at least stop the blatantly wrong handling of A-MPDU parameters. (I'll happily simplify things if someone can dig up a replacement, better compliant behaviour.) PR: kern/176201
2015-05-10 06:57:53 +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
/* adjust short GI based on channel and config */
iv_flags_ext is full, make room by moving HT-related flags to a new iv_flags_ht word
2009-06-07 22:00:22 +00:00
if ((vap->iv_flags_ht & IEEE80211_FHT_SHORTGI20) == 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
caps &= ~IEEE80211_HTCAP_SHORTGI20;
iv_flags_ext is full, make room by moving HT-related flags to a new iv_flags_ht word
2009-06-07 22:00:22 +00:00
if ((vap->iv_flags_ht & IEEE80211_FHT_SHORTGI40) == 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
(caps & IEEE80211_HTCAP_CHWIDTH40) == 0)
caps &= ~IEEE80211_HTCAP_SHORTGI40;
ADDSHORT(frm, caps);
/* HT parameters */
correct sta mode setup: adopt ap's ampdu density and max ampdu size instead of using local settings MFC after: 3 days
2007-11-23 06:14:32 +00:00
*frm = SM(rxmax, IEEE80211_HTCAP_MAXRXAMPDU)
| SM(density, IEEE80211_HTCAP_MPDUDENSITY)
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +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
frm++;
/* pre-zero remainder of ie */
memset(frm, 0, sizeof(struct ieee80211_ie_htcap) -
__offsetof(struct ieee80211_ie_htcap, hc_mcsset));
/* supported MCS set */
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
/*
Fill hc_mcsset completely. Contrary to the rateset information in legacy frames the MCS Set field also contains TX capability information in cases where the number of available TX and RX spartial streams differ. Because a rateset doesn't contain that information we have to pull the those directly from the hardware capabilities.
2011-03-13 11:56:33 +00:00
* XXX: For sta mode the rate set should be restricted based
* on the AP's capabilities, but ni_htrates isn't setup when
* we're called to form an AssocReq frame so for now we're
* restricted to the device capabilities.
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
*/
Fill hc_mcsset completely. Contrary to the rateset information in legacy frames the MCS Set field also contains TX capability information in cases where the number of available TX and RX spartial streams differ. Because a rateset doesn't contain that information we have to pull the those directly from the hardware capabilities.
2011-03-13 11:56:33 +00:00
ieee80211_set_mcsset(ni->ni_ic, frm);
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
Add a new field for extended HT capabilities. Submitted by: Alexander Egorenkov <egorenar at gmail.com> MFC after: 2 weeks Sponsored by: iXsystems, inc.
2010-03-23 12:03:09 +00:00
frm += __offsetof(struct ieee80211_ie_htcap, hc_extcap) -
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
__offsetof(struct ieee80211_ie_htcap, hc_mcsset);
Add a new field for extended HT capabilities. Submitted by: Alexander Egorenkov <egorenar at gmail.com> MFC after: 2 weeks Sponsored by: iXsystems, inc.
2010-03-23 12:03:09 +00:00
/* HT extended capabilities */
extcaps = vap->iv_htextcaps & 0xffff;
ADDSHORT(frm, extcaps);
frm += sizeof(struct ieee80211_ie_htcap) -
__offsetof(struct ieee80211_ie_htcap, hc_txbf);
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
return frm;
#undef ADDSHORT
}
/*
* Add 802.11n HT capabilities information element
*/
uint8_t *
ieee80211_add_htcap(uint8_t *frm, struct ieee80211_node *ni)
{
frm[0] = IEEE80211_ELEMID_HTCAP;
frm[1] = sizeof(struct ieee80211_ie_htcap) - 2;
return ieee80211_add_htcap_body(frm + 2, ni);
}
/*
* Add Broadcom OUI wrapped standard HTCAP ie; this is
* used for compatibility w/ pre-draft implementations.
*/
uint8_t *
ieee80211_add_htcap_vendor(uint8_t *frm, struct ieee80211_node *ni)
{
frm[0] = IEEE80211_ELEMID_VENDOR;
frm[1] = 4 + sizeof(struct ieee80211_ie_htcap) - 2;
frm[2] = (BCM_OUI >> 0) & 0xff;
frm[3] = (BCM_OUI >> 8) & 0xff;
frm[4] = (BCM_OUI >> 16) & 0xff;
frm[5] = BCM_OUI_HTCAP;
return ieee80211_add_htcap_body(frm + 6, ni);
}
/*
* Construct the MCS bit mask of basic rates
* for inclusion in an HT information element.
*/
static void
ieee80211_set_basic_htrates(uint8_t *frm, const struct ieee80211_htrateset *rs)
{
int i;
for (i = 0; i < rs->rs_nrates; i++) {
int r = rs->rs_rates[i] & IEEE80211_RATE_VAL;
if ((rs->rs_rates[i] & IEEE80211_RATE_BASIC) &&
r < IEEE80211_HTRATE_MAXSIZE) {
/* NB: this assumes a particular implementation */
setbit(frm, r);
}
}
}
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
/*
* Update the HTINFO ie for a beacon frame.
*/
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
ieee80211_ht_update_beacon(struct ieee80211vap *vap,
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
struct ieee80211_beacon_offsets *bo)
{
#define PROTMODE (IEEE80211_HTINFO_OPMODE|IEEE80211_HTINFO_NONHT_PRESENT)
Fix a VAP BSS node reference in the HT code to actually take a reference before using said node. The "blessed" way here is to take a node reference before referencing anything inside the node, otherwise the node can be freed between the time the pointer is copied/dereferenced and the time the node contents are used. This mirrors fixes that I've done elsewhere in the net80211/driver stack. PR: kern/178470
2013-05-10 09:37:58 +00:00
struct ieee80211_node *ni;
const struct ieee80211_channel *bsschan;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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 = vap->iv_ic;
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
struct ieee80211_ie_htinfo *ht =
(struct ieee80211_ie_htinfo *) bo->bo_htinfo;
Fix a VAP BSS node reference in the HT code to actually take a reference before using said node. The "blessed" way here is to take a node reference before referencing anything inside the node, otherwise the node can be freed between the time the pointer is copied/dereferenced and the time the node contents are used. This mirrors fixes that I've done elsewhere in the net80211/driver stack. PR: kern/178470
2013-05-10 09:37:58 +00:00
ni = ieee80211_ref_node(vap->iv_bss);
bsschan = ni->ni_chan;
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
/* XXX only update on channel change */
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
ht->hi_ctrlchannel = ieee80211_chan2ieee(ic, bsschan);
iv_flags_ext is full, make room by moving HT-related flags to a new iv_flags_ht word
2009-06-07 22:00:22 +00:00
if (vap->iv_flags_ht & IEEE80211_FHT_RIFS)
RIFS support; needs driver callback for dynamic state change
2008-09-22 00:10:22 +00:00
ht->hi_byte1 = IEEE80211_HTINFO_RIFSMODE_PERM;
else
ht->hi_byte1 = IEEE80211_HTINFO_RIFSMODE_PROH;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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 (IEEE80211_IS_CHAN_HT40U(bsschan))
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
ht->hi_byte1 |= IEEE80211_HTINFO_2NDCHAN_ABOVE;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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 (IEEE80211_IS_CHAN_HT40D(bsschan))
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
ht->hi_byte1 |= IEEE80211_HTINFO_2NDCHAN_BELOW;
else
ht->hi_byte1 |= IEEE80211_HTINFO_2NDCHAN_NONE;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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 (IEEE80211_IS_CHAN_HT40(bsschan))
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
ht->hi_byte1 |= IEEE80211_HTINFO_TXWIDTH_2040;
/* protection mode */
ht->hi_byte2 = (ht->hi_byte2 &~ PROTMODE) | ic->ic_curhtprotmode;
Fix a VAP BSS node reference in the HT code to actually take a reference before using said node. The "blessed" way here is to take a node reference before referencing anything inside the node, otherwise the node can be freed between the time the pointer is copied/dereferenced and the time the node contents are used. This mirrors fixes that I've done elsewhere in the net80211/driver stack. PR: kern/178470
2013-05-10 09:37:58 +00:00
ieee80211_free_node(ni);
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
/* XXX propagate to vendor ie's */
#undef PROTMODE
}
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
/*
* Add body of an HTINFO information element.
sync 11n support with vap code base; many changes based on interop testing with all major vendors MFC after: 1 week
2007-11-02 05:22:25 +00:00
*
* NB: We don't use struct ieee80211_ie_htinfo because we can
* be called to fillin both a standard ie and a compat ie that
* has a vendor OUI at the front.
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 uint8_t *
ieee80211_add_htinfo_body(uint8_t *frm, struct ieee80211_node *ni)
{
RIFS support; needs driver callback for dynamic state change
2008-09-22 00:10:22 +00:00
struct ieee80211vap *vap = ni->ni_vap;
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 ieee80211com *ic = ni->ni_ic;
/* pre-zero remainder of ie */
memset(frm, 0, sizeof(struct ieee80211_ie_htinfo) - 2);
/* primary/control channel center */
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into the wlan module. Supported by: Hobnob and Marvell Reviewed by: many Obtained from: Atheros (some bits)
2008-04-20 20:35:46 +00:00
*frm++ = ieee80211_chan2ieee(ic, 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
iv_flags_ext is full, make room by moving HT-related flags to a new iv_flags_ht word
2009-06-07 22:00:22 +00:00
if (vap->iv_flags_ht & IEEE80211_FHT_RIFS)
RIFS support; needs driver callback for dynamic state change
2008-09-22 00:10:22 +00:00
frm[0] = IEEE80211_HTINFO_RIFSMODE_PERM;
else
frm[0] = IEEE80211_HTINFO_RIFSMODE_PROH;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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 (IEEE80211_IS_CHAN_HT40U(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
frm[0] |= IEEE80211_HTINFO_2NDCHAN_ABOVE;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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 (IEEE80211_IS_CHAN_HT40D(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
frm[0] |= IEEE80211_HTINFO_2NDCHAN_BELOW;
else
frm[0] |= IEEE80211_HTINFO_2NDCHAN_NONE;
Multi-bss (aka vap) support for 802.11 devices. Note this includes changes to all drivers and moves some device firmware loading to use firmware(9) and a separate module (e.g. ral). Also there no longer are separate wlan_scan* modules; this functionality is now bundled into 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 (IEEE80211_IS_CHAN_HT40(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
frm[0] |= IEEE80211_HTINFO_TXWIDTH_2040;
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
frm[1] = ic->ic_curhtprotmode;
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
frm += 5;
/* basic MCS set */
ieee80211_set_basic_htrates(frm, &ni->ni_htrates);
frm += sizeof(struct ieee80211_ie_htinfo) -
__offsetof(struct ieee80211_ie_htinfo, hi_basicmcsset);
return frm;
}
/*
* Add 802.11n HT information information element.
*/
uint8_t *
ieee80211_add_htinfo(uint8_t *frm, struct ieee80211_node *ni)
{
frm[0] = IEEE80211_ELEMID_HTINFO;
frm[1] = sizeof(struct ieee80211_ie_htinfo) - 2;
return ieee80211_add_htinfo_body(frm + 2, ni);
}
/*
* Add Broadcom OUI wrapped standard HTINFO ie; this is
* used for compatibility w/ pre-draft implementations.
*/
uint8_t *
ieee80211_add_htinfo_vendor(uint8_t *frm, struct ieee80211_node *ni)
{
frm[0] = IEEE80211_ELEMID_VENDOR;
frm[1] = 4 + sizeof(struct ieee80211_ie_htinfo) - 2;
frm[2] = (BCM_OUI >> 0) & 0xff;
frm[3] = (BCM_OUI >> 8) & 0xff;
frm[4] = (BCM_OUI >> 16) & 0xff;
frm[5] = BCM_OUI_HTINFO;
return ieee80211_add_htinfo_body(frm + 6, ni);
}
Reference in New Issue Copy Permalink