Commit Graph

393 Commits

Author SHA1 Message Date
Poul-Henning Kamp
6778431478 Revert previous commit and add myself to the list of people who should
know better than to commit with a cat in the area.
2009-09-08 13:19:05 +00:00
Poul-Henning Kamp
b34421bf9c Add necessary include. 2009-09-08 13:16:55 +00:00
Sam Leffler
2ef29b4c33 remove extranous return
Submitted by:	phk
MFC after:	1 week
2009-09-07 16:18:16 +00:00
Sam Leffler
d5c613bdb2 fix extraneous return that can cause a memory leak
Submitted by:	phk
MFC after:	1 week
2009-09-07 16:12:07 +00:00
Sam Leffler
518de5f837 correct typo that was a noop on 32-bit machines but a bug on 64-bit machines
Submitted by:	phk
2009-09-07 16:08:21 +00:00
Sam Leffler
394f34a579 On resume in sta mode program the beacon timers so when roaming (and
the previous ap is no longer in range) the device will deliver bmiss
interrupts and trigger the state machine.  Also arrange to sync the
beacon timers on the next received beacon frame so that when we don't
roam we re-synchronize with the ap.

Tested by:	trasz
MFC after:	1 week
2009-08-31 21:25:49 +00:00
Sam Leffler
c1d8b5aadd change default regdomain for thailand
Obtained from:	linux-wireless@kernel.org
2009-08-27 17:42:37 +00:00
Sam Leffler
82cadd5aa0 Fix handling of AR_RX_FILTER_BSSID: write the shadow value for AR_MISC_MODE
so other register writes preserve the setting of AR_MISC_MODE_BSSID_MATCH_FORCE.

Reviewed by:	rpaulo
Approved by:	re (kib)
2009-07-21 19:23:34 +00:00
Sam Leffler
fe0dd78965 track whether any mesh vaps are present to correctly setup the rx filter
when, for example, an ap vap is created first

Reviewed by:	rpaulo
Approved by:	re (kib)
2009-07-21 19:01:04 +00:00
Rui Paulo
7d26189145 Fix something bogus deletion that got it during mesh commit.
Approved by:	re (implicit)
2009-07-11 16:02:06 +00:00
Rui Paulo
59aa14a91d Implementation of the upcoming Wireless Mesh standard, 802.11s, on the
net80211 wireless stack. This work is based on the March 2009 D3.0 draft
standard. This standard is expected to become final next year.
This includes two main net80211 modules, ieee80211_mesh.c
which deals with peer link management, link metric calculation,
routing table control and mesh configuration and ieee80211_hwmp.c
which deals with the actually routing process on the mesh network.
HWMP is the mandatory routing protocol on by the mesh standard, but
others, such as RA-OLSR, can be implemented.

Authentication and encryption are not implemented.

There are several scripts under tools/tools/net80211/scripts that can be
used to test different mesh network topologies and they also teach you
how to setup a mesh vap (for the impatient: ifconfig wlan0 create
wlandev ... wlanmode mesh).

A new build option is available: IEEE80211_SUPPORT_MESH and it's enabled
by default on GENERIC kernels for i386, amd64, sparc64 and pc98.

Drivers that support mesh networks right now are: ath, ral and mwl.

More information at: http://wiki.freebsd.org/WifiMesh

Please note that this work is experimental. Also, please note that
bridging a mesh vap with another network interface is not yet supported.

Many thanks to the FreeBSD Foundation for sponsoring this project and to
Sam Leffler for his support.
Also, I would like to thank Gateworks Corporation for sending me a
Cambria board which was used during the development of this project.

Reviewed by:	sam
Approved by:	re (kensmith)
Obtained from:	projects/mesh11s
2009-07-11 15:02:45 +00:00
Sam Leffler
6552698302 Fix ar5416 and later parts on big-endian platforms: setup the h/w byte
swizzler using the same technique used everywhere else.

Approved by:	re (kib)
2009-07-07 18:11:05 +00:00
Sam Leffler
69ad6b3450 Fix AR5416 and later parts when building with AH_DEBUG or similar defined:
always define OS_REG_UNSWAPPED and use it in ath_hal_reg_{read,write}.

Approved by:	re (kib)
2009-07-06 20:51:54 +00:00
Poul-Henning Kamp
f5d7126306 Revert a local change that should not have been in the last commit.
Approved by:	re (kib)
2009-06-28 11:32:52 +00:00
Poul-Henning Kamp
bb520069ca There are a number of ways an application can check if there are
inbound data waiting on a filedescriptor, such as a pipe or a socket,
for instance by using select(2), poll(2), kqueue(2), ioctl(FIONREAD)
etc.

But we have no way of finding out if written data have yet to be
disposed of, for instance, transmitted (and ack'ed!) to some remote
host, or read by the applicantion at the far end of the pipe.

The closest we get, is calling shutdown(2) on a TCP socket in
non-blocking mode, but this has the undesirable sideeffect of
preventing future communication.

Add a complement to FIONREAD, called FIONWRITE, which returns the
number of bytes not yet properly disposed of.  Implement it for
all sockets.

Background:

A HTTP server will want to time out connections, if no new request
arrives within a certain period after the last transmitted response
has actually been sent (and ack'ed).

For a busy HTTP server, this timeout can be subsecond duration.

In order to signal to a load-balancer that the connection is truly
dead, TCP_RST will be the preferred method, as this avoids the need
for a RTT delay for FIN handshaking, with a client which, surprisingly
often, no longer at the remote IP number.

If a slow, distant client is being served a response which is big
enough to fill the window, but small enough to fit in the socket
buffer, the write(2) call will return immediately.

If the session timeout is armed at that time, all bytes in the
response may not have been transmitted by the time it fires.

FIONWRITE allows the timeout to check that no data is outstanding
on the connection, before it TCP_RST's it.

Input & Idea from: rwatson
Approved by:	re (kib)
2009-06-28 11:28:14 +00:00
Sam Leffler
3c3e9d336d Add HAL_RX_FILTER_BSSID support (to disable bssid match):
o add HAL_CAP_BSSIDMATCH to identify parts that have the support for
  disabling bssid match
o honor capability for set/get rx filter
o use HAL_CAP_BSSIDMATCH in driver to decide whether to use the bssid
  match disable or fall back to promisc mode

Reviewed by:	rpaulo
Approved by:	re (rwatson)
2009-06-27 20:06:56 +00:00
Robert Watson
eb956cd041 Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/
IF_ADDR_UNLOCK() across network device drivers when accessing the
per-interface multicast address list, if_multiaddrs.  This will
allow us to change the locking strategy without affecting our driver
programming interface or binary interface.

For two wireless drivers, remove unnecessary locking, since they
don't actually access the multicast address list.

Approved by:	re (kib)
MFC after:	6 weeks
2009-06-26 11:45:06 +00:00
Sam Leffler
f6cbf16a0f purge HAL_TXSTAT_ALTRATE; you can figure this out by checking ts_finaltsi
and it cannot be used with MCS rate codes
2009-06-13 23:36:54 +00:00
Sam Leffler
309a3e4521 treat IEEE80211_S_CSA as a "running state"; this fixes
ap mode 11h channel switch announcements
2009-06-03 17:25:19 +00:00
Sam Leffler
3050678410 improve raw xmit failure handling 2009-06-02 21:17:56 +00:00
Sam Leffler
9cb930760c count frag tx failures as an ifnet error 2009-06-02 21:13:57 +00:00
Sam Leffler
09be6601b5 fix comment 2009-06-02 21:12:07 +00:00
Sam Leffler
c89b957a1c restart tdma beacons after vap destroy 2009-06-02 21:11:26 +00:00
Sam Leffler
5463c4a485 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
Sam Leffler
3f51a18229 correct HAL_INT_BNR comment, this bit is mapped directly the h/w now 2009-05-19 17:54:32 +00:00
Sam Leffler
210411e0f1 add TBTT interrupt support; this was added in Griffin so consumers should
check HAL_CAP_INTRMASK before using it

NB: didn't test 11n parts yet so supported only for 5212-class parts
2009-05-19 17:53:53 +00:00
Sam Leffler
00e602a997 minor cleanup 2009-05-19 17:43:31 +00:00
Sam Leffler
88608a2211 remove special handling for BNR; it is direct mapped to the harwdare so
can be added to HAL_INT_COMMON except on the 5210 where it doesn't exist
2009-05-19 17:35:15 +00:00
Sam Leffler
683f31342d add HAL_CAP_INTRMASK to return the set of interrupts supported by the device 2009-05-19 17:30:13 +00:00
Warner Losh
b8f5836a3c The module name convention is foo, not if_foo. 2009-05-15 17:02:11 +00:00
Sam Leffler
b4307a77d2 kill more portability functions that are no longer useful 2009-05-08 00:23:00 +00:00
Sam Leffler
8ab663f305 kill unused OS_GETUPTIME 2009-05-08 00:15:27 +00:00
Sam Leffler
ab06fdf2a5 optimize ath_tx_findrix: there's no need to walk the rates table as
sc_rixmap is an inverse map

NB: could eliminate the check for an invalid rate by filling in 0 for
    invalid entries but the rate control modules use it to identify
    bogus rates so leave it for now
2009-05-07 00:35:32 +00:00
Sam Leffler
a8962181ad o cleanup checks for which vap combinations are permitted and what to
use for ic_opmode
o fixes the case where creating ahdemo+wds vaps caused ic_opmode to be
  set to hostap
2009-05-06 23:49:55 +00:00
Sam Leffler
a00b852cab add support for the Beacon Not Ready (BNR) interrupt
(available on 5211 and later)
2009-05-06 23:09:26 +00:00
Sam Leffler
04f19fd699 make superg/fast-frames state dynamically-allocated (and indirect off
the com structure instead of embedded); this reduces the overhead when
not configured and reduces visibility of the contents
2009-05-02 20:16:55 +00:00
Sam Leffler
19ea87c42b o eliminate a << in calculating the tx time for turbo mode by pre-multiplying
data in the phy tables
o correct the ctrl rate indices in the 5212 turbog phy table
2009-04-13 21:01:08 +00:00
Sam Leffler
e40b6ab1cf don't use caddr_t to match ieee80211_dump_pkt type; supplying the correct
one costs nothing
2009-04-13 20:58:47 +00:00
Sam Leffler
040972a18b o fix dynamic slave-side tdma slot length updating: we need to re-setup the
burst length in the tx q's
o remove re-config of the beaconq on update; it's not needed
2009-04-13 20:57:34 +00:00
Sam Leffler
5e86169a67 add a debug msg for when a fixed transmit rate is not applied because
it's not found in the sta's negotiated rate set
2009-04-13 20:54:08 +00:00
Sam Leffler
89047529ac remove reference to sc_tdmabintcnt; it was removed in r190848 2009-04-13 03:20:21 +00:00
Sam Leffler
dd015656a7 check the method pointer before invoking ah_eepromDetach as it can
be null if attach work fails before hooking up the eeprom support

Obtained from:	madwifi
2009-04-09 16:53:59 +00:00
Sam Leffler
293d484820 remove unused struct member 2009-04-08 16:12:28 +00:00
Sam Leffler
339ccfb391 Hoist 802.11 encapsulation up into net80211:
o call ieee80211_encap in ieee80211_start so frames passed down to drivers
  are already encapsulated
o remove ieee80211_encap calls in drivers
o fixup wi so it recreates the 802.3 head it requires from the 802.11
  header contents
o move fast-frame aggregation from ath to net80211 (conditional on
  IEEE80211_SUPPORT_SUPERG):
  - aggregation is now done in ieee80211_start; it is enabled when the
    packets/sec exceeds ieee80211_ffppsmin (net.wlan.ffppsmin) and frames
    are held on a staging queue according to ieee80211_ffagemax
    (net.wlan.ffagemax) to wait for a frame to combine with
  - drivers must call back to age/flush the staging queue (ath does this
    on tx done, at swba, and on rx according to the state of the tx queues
    and/or the contents of the staging queue)
  - remove fast-frame-related data structures from ath
  - add ieee80211_ff_node_init and ieee80211_ff_node_cleanup to handle
    per-node fast-frames state (we reuse 11n tx ampdu state)
o change ieee80211_encap calling convention to include an explicit vap
  so frames coming through a WDS vap are recognized w/o setting M_WDS

With these changes any device able to tx/rx 3Kbyte+ frames can use fast-frames.

Reviewed by:	thompsa, rpaulo, avatar, imp, sephe
2009-03-30 21:53:27 +00:00
Sam Leffler
584f7327f1 Remove ATH_SUPPORT_TDMA and use IEEE80211_SUPPORT_TDMA instead. It
doesn't make much sense to configure driver support w/o net80211.
Note this means ath now depends on opt_wlan.h.
2009-03-30 19:23:49 +00:00
Sam Leffler
29aca94080 Eliminate ic_myaddr so changing the mac address of a device works correctly:
o remove ic_myaddr from ieee80211com
o change ieee80211_ifattach to take the mac address of the physical device
  and use that to setup the lladdr.
o replace all references to ic_myaddr in drivers by IF_LLADDR
o related cleanups (e.g. kill dead code)

PR:		kern/133178
Reviewed by:	thompsa, rpaulo
2009-03-29 17:59:14 +00:00
Sam Leffler
aa28501a67 fix build w/ AH_DEBUG 2009-03-24 00:09:35 +00:00
Sam Leffler
c4d3fad2ec purge hal abi support; now that the hal is merged w/ the driver
we cannot be out of sync

MFC after:	1 week
2009-03-19 19:29:10 +00:00
Sam Leffler
2bc3ce7732 Minor cleanups of tdma protocol handling:
o break out version-related code to simplify rev'ing the protocol
o add parameter validation macros so checks that appear multiple places
  are consistent (and easy to change)
o add protocol version check when looking for a scan candidate
o improve scan debug output format
o rewrite beacon update handling to calculate a bitmask of changed values
  and pass that down through the driver callback so drivers can optimize work
o do slot bounds check before use when parsing received beacons
2009-03-18 19:28:17 +00:00
Sam Leffler
4a948799c2 preliminary ar9280 support:
o add 9280 attach that sets up ini, cal, etc.
o new rf backend for 9280 and later parts
o split ini setup and spur mitigation support out to methods
  and provide 9280-specific support
o minor fixups to shared code to handle 9280-specific work

Obtained from:	Atheros (ini values and some code)
2009-03-12 18:18:28 +00:00