Commit Graph

32 Commits

Author SHA1 Message Date
Sam Leffler
1bb9a085eb revert 1.18: the negotiated rate set may not match the hal
rate tables, so using the hal's rateCodeToIndex array
will produce wrong indices for the negotiated rate set

MFC after:	3 days
2007-10-13 22:30:41 +00:00
Sam Leffler
2badb3db3c convert hardware rate codes to IEEE rate codes with a lookup table
instead of a linear search

Reviewed by:	sephe, avatar
Approved by:	re (blanket wireless)
MFC after:	2 weeks
2007-09-17 16:25:02 +00:00
Robert Watson
33d2bb9ca3 First in a series of changes to remove the now-unused Giant compatibility
framework for non-MPSAFE network protocols:

- Remove debug_mpsafenet variable, sysctl, and tunable.
- Remove NET_NEEDS_GIANT() and associate SYSINITSs used by it to force
  debug.mpsafenet=0 if non-MPSAFE protocols are compiled into the kernel.
- Remove logic to automatically flag interrupt handlers as non-MPSAFE if
  debug.mpsafenet is set for an INTR_TYPE_NET handler.
- Remove logic to automatically flag netisr handlers as non-MPSAFE if
  debug.mpsafenet is set.
- Remove references in a few subsystems, including NFS and Cronyx drivers,
  which keyed off debug_mpsafenet to determine various aspects of their own
  locking behavior.
- Convert NET_LOCK_GIANT(), NET_UNLOCK_GIANT(), and NET_ASSERT_GIANT into
  no-op's, as their entire behavior was determined by the value in
  debug_mpsafenet.
- Alias NET_CALLOUT_MPSAFE to CALLOUT_MPSAFE.

Many remaining references to NET_.*_GIANT() and NET_CALLOUT_MPSAFE are still
present in subsystems, and will be removed in followup commits.

Reviewed by:	bz, jhb
Approved by:	re (kensmith)
2007-07-27 11:59:57 +00:00
Sam Leffler
68e8e04e93 Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
  fully enumerated and uniquely identify the operating characteristics;
  these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
  background scanning and roaming
o move scanning support into loadable modules based on the operating
  mode to enable different policies and reduce the memory footprint
  on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
  mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
  we use a simple algorithm to trigger a roam: we threshold the rssi
  and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
  drivers but is incomplete; it's included now to establish a baseline
  for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
  prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
  encapsulation (note this can be used with any card that can tx+rx
  large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
  authentication and association failures
o enable the addition of sta mode power save support for drivers that need
  net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
  results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
  index into the rate set; this needs to be extended to deal with
  multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing

Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
       dynamic turbo (lightly tested), 11n (sniffing only and needs
       new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
       rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested

This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others.  Much of the scanning work was supported by
Atheros.  The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
Sam Leffler
515d617e8d update copyrights to 2007 and convert to be 2-clause bsd-only 2007-06-06 15:49:16 +00:00
Sam Leffler
517eabc6fa save changes for handling 5416/5418 parts 2007-01-15 01:17:44 +00:00
Sam Leffler
65f9edeee1 Track v0.9.20.3 hal:
o no more ds_vdata in tx/rx descriptors
o split h/w tx/rx descriptor from s/w status
o as part of the descriptor split change the rate control module api
  so the ath_buf is passed in to the module so it can fetch both
  descriptor and status information as needed
o add some const poisoning

Also for sample rate control algorithm:

o split debug msgs (node, rate, any)
o uniformly bounds check rate indices (and in some cases correct checks)
o move array index ops to after bounds checking
o use final tsi from the status block instead of the h/w descriptor
o replace h/w descriptor struct's with proper mask+shift defs (this
  doesn't belong here; everything is known by the driver and should
  just be sent down so there's no h/w-specific knowledge)

MFC after:	1 month
2006-12-13 19:34:35 +00:00
Sam Leffler
d95eaaf3ed add missing \n's
Submitted by:	avatar@
MFC after:	1 week
2006-07-26 04:09:04 +00:00
Sam Leffler
d0d425bf53 correct ni_txrate when using a fixed rate; fixes current rate reporting
MFC after:	3 days
2006-03-09 00:28:44 +00:00
Sam Leffler
aaba14d7b2 fix comment and whitespace 2006-02-13 18:40:53 +00:00
Sam Leffler
55f63772e8 move mgt frame tx rate responsibility from the rate control modules
to the driver; this avoids redundant logic and will be necessary
for future additions

MFC after:	2 weeks
2006-02-09 20:49:55 +00:00
Sam Leffler
b91bf513f3 sync with latest code in madwifi
Obtained from:	madwifi
MFC after:	2 weeks
2006-02-09 20:40:28 +00:00
Sam Leffler
0ae09ec575 bandaid inconsistent state handling: the rate index map may be
stale when called to reset rate control state causing us to
pickup an invalid index, check for this and skip 'em (things
will eventually get fixed up so this is not harmful)
2005-11-15 05:47:20 +00:00
Robert Watson
13f4c340ae Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and
IFF_DRV_RUNNING, as well as the move from ifnet.if_flags to
ifnet.if_drv_flags.  Device drivers are now responsible for
synchronizing access to these flags, as they are in if_drv_flags.  This
helps prevent races between the network stack and device driver in
maintaining the interface flags field.

Many __FreeBSD__ and __FreeBSD_version checks maintained and continued;
some less so.

Reviewed by:	pjd, bz
MFC after:	7 days
2005-08-09 10:20:02 +00:00
Sam Leffler
2c39b32c94 diff reduction against p4: define IEEE80211_FIXED_RATE_NONE and use
it instead of -1
2005-07-22 16:50:18 +00:00
Brooks Davis
fc74a9f93a Stop embedding struct ifnet at the top of driver softcs. Instead the
struct ifnet or the layer 2 common structure it was embedded in have
been replaced with a struct ifnet pointer to be filled by a call to the
new function, if_alloc(). The layer 2 common structure is also allocated
via if_alloc() based on the interface type. It is hung off the new
struct ifnet member, if_l2com.

This change removes the size of these structures from the kernel ABI and
will allow us to better manage them as interfaces come and go.

Other changes of note:
 - Struct arpcom is no longer referenced in normal interface code.
   Instead the Ethernet address is accessed via the IFP2ENADDR() macro.
   To enforce this ac_enaddr has been renamed to _ac_enaddr.
 - The second argument to ether_ifattach is now always the mac address
   from driver private storage rather than sometimes being ac_enaddr.

Reviewed by:	sobomax, sam
2005-06-10 16:49:24 +00:00
Sam Leffler
15f139756b fix size_to_bin
Obtained from:	madwifi
2005-04-02 18:56:50 +00:00
Sam Leffler
a4d8dd103e nuke unintentional use of HAL_BOOL type 2005-04-02 18:54:30 +00:00
Sam Leffler
43e9cf7c9e o fix bug where rate wouldn't lift off lowest setting when operating as
an ap in 11g with protection enabled
o correct rate selection when operating in 11g with protection when no
  packets have been sent yet (from John Bicket)
o track api change to get first descriptor and use it to collect the frame
  length for calculating the state bin
o add more debugging and shuffle some existing debugging to give more info
o bump version to distinguish bug fixes
2005-03-30 20:20:49 +00:00
Sam Leffler
22233301a3 rev rate control api to pass the both the first+last tx descriptors
to the rate control module for tx complete processing; this enables
rate control algorithms to extract the packet length for xmits that
require multiple descriptors
2005-03-30 20:17:18 +00:00
Sam Leffler
f0fd5e07bb sync rates for any associated stations or neighbors on state transition 2005-03-29 21:00:50 +00:00
Sam Leffler
b467935a06 simplify callback 2005-03-29 20:59:49 +00:00
Sam Leffler
eb9883565a fix braino introduced when converting from madwifi 2005-03-20 01:55:02 +00:00
Sam Leffler
57a4a75853 eliminate mid-block variable decls 2005-03-20 01:27:33 +00:00
Sam Leffler
b276305606 version 1.1 (with cleanups)
Submitted by:	John Bicket
2005-03-19 21:04:53 +00:00
Tai-hwa Liang
4e860beeb1 Adding missing module dependency. This should fix the undefined symbol
error(ath_hal_computetxtime) during module loading.

Reviewed by:	sam (mentor)
2005-03-11 16:15:43 +00:00
Sam Leffler
fa20c23401 SampleRate rate control algorithm for the ath driver
Submitted by:	John Bicket
2005-03-11 01:39:57 +00:00
Sam Leffler
acc4f7f50c statically allocate the station/neighbor node table; the deferred
allocation scheme introduced a race condition during device state
transitions
2005-01-24 19:32:10 +00:00
Sam Leffler
1f1d781074 bump copyright for 2005 2004-12-31 22:42:38 +00:00
Peter Wemm
063896020b Like on the ath_rate_onoe component, make this compile on amd64. Convert
pointers to an integer via uintptr_t.

Fix an apparent bug that caused a compile failure.
ieee80211_iterate_nodes() takes ic->ic_sta as its first argument on the
onoe module.  It had just 'ic' here in the same context, which was a
mismatched argument.
2004-12-15 02:32:27 +00:00
Peter Wemm
6891c875c2 Make this amd64-clean. sizeof is long on amd64, so things that do a printf
of a sizeof, need to use %z to get the correct type on all our platforms.
Also, convert integers<->pointers via uintptr_t.

(I think Sam's instructions were for me to commit this.  If I
 misunderstood, then I apologize in advance.)
2004-12-15 02:25:21 +00:00
Sam Leffler
05f1e03f00 Transmit rate control modules for the ath driver. 2004-12-08 17:32:02 +00:00