Commit Graph

1848 Commits

Author SHA1 Message Date
Wey-Yi Guy
7c094c5cc4 iwlwifi: additional statistic debug counter
Add wait_for_silence_timeout_cnt to statistics_dbg structure

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2010-07-17 07:37:34 -07:00
John W. Linville
0e954099b7 iwlwifi: convert new uses of __attribute__ ((packed)) to __packed
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-07-14 13:52:46 -04:00
Joe Perches
57674308d0 drivers/net/wireless: Remove unnecessary casts of private_data
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-07-14 13:52:45 -04:00
John W. Linville
815868e7b5 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 2010-07-13 15:31:51 -04:00
Emmanuel Grumbach
9726f347f8 iwlagn: fix the bit mask of a FH register in stop Tx DMA flow
When we stop the Tx DMA channels, we poll bits 16:31 in
FH_TSSR_RX_STATUS_REG. From 4965 and up, only the bits 16:26 are legal.
Bits 27:31 are not used and are always unset.
Polling them will lead to fail on timeout but since the timeout is quite
small, the stall was not felt.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2010-07-09 10:17:24 -07:00
Wey-Yi Guy
41691de326 iwlagn: more generic description for iwlagn devices
Intel Wireless WiFi Next Gen AGN support two major categories:
 1. Intel Wireless WiFi 4965 AGN device
 2. Intel Wireless-N/Advanced-N/Ultimate-N family

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2010-07-09 10:17:09 -07:00
Jay Sternberg
4b58645ce6 iwlwifi: correct descriptions of advanced ucode errors
ucode errors were redefined in new ucode images and all new errors
were showing as advanced sysasserts which was misleading. new errors
are not sequential so additional lookup table added.  errors do not
overlap so both are used to support older and newer ucode images.

Signed-off-by: Jay Sternberg <jay.e.sternberg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2010-07-09 10:16:54 -07:00
Shanyu Zhao
0326433995 iwlwifi: enable 6050 series Gen2 devices
To enable 6050 series Gen 2 devices:
1) new PCI_IDs are added;
2) new EEPROM version and calibration version numbers defined;
3) new hardware REV number defined;

Signed-off-by: Shanyu Zhao <shanyu.zhao@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2010-07-09 10:16:39 -07:00
Wey-Yi Guy
c8312facd9 iwlwifi: adding enhance sensitivity table entries
For newer devices (6000g2a and 6000g2b), the sensitivity table send to
uCode require additional table entries to help sensitivity calibration.

All the additional entries has fix data for now, but do expect the value
will be change in the future when device become more stable.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2010-07-02 11:11:17 -07:00
Wey-Yi Guy
bf3c7fddf9 iwlwifi: generic parameter define for _agn device
Code clean up to change name from having 5000 as part of name which easy
to confuse and think it is for 5000 series devices to more
generic _agn name since it is being used by multiple _agn devices.

No functional changes.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-07-02 11:11:06 -07:00
Wey-Yi Guy
4bf49a90bc iwlwifi: debugfs file for txfifo command testing
Add debugfs file for REPLY_TXFIFO_FLUSH host command testing.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-07-02 11:10:57 -07:00
Wey-Yi Guy
6555063666 iwlwifi: add support for device tx flush request
"Flush" request can come from two different sources, it can either from
mac80211, or from device when the operation is needed. Here
adding the support for device issue "flush" request.

When receive tx complete with status is TX_STATUS_FAIL_RFKILL_FLUSH,
issue REPLY_TXFIFO_FLUSH command to uCode to flush out all the tx frames
in queues.

In this condition, since mac80211 has no knowledge of "flush" operation,
driver need to stop all the tx queues and wait for the operation
completed before wake up the queues for frames transmission.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-07-02 11:10:45 -07:00
Wey-Yi Guy
716c74b007 iwlwifi: add mac80211 flush callback support
Adding flush callback support in the driver. Two type of flush can be
issued by mac80211:
1. drop = true: frame drop is ok, issue REPLY_TXFIFO_FLUSH host command
to uCode to drop all the frames in tx fifo queues; then return the
control back to mac80211
2. drop = false: wait for either all the frames in tx fifo queues been
transmitted, or timeout; then return the control back to mac80211

If the flush request coming from mac80211, mac80211 will make sure there
are no additional frames push down to driver before flush operation is
completed.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-07-02 11:10:33 -07:00
Wey-Yi Guy
947279eefb iwlwifi: tx fifo queue flush command
Add host command and structure for tx fifo queue flush

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-07-02 11:10:15 -07:00
Wey-Yi Guy
ad8d8333b1 iwlwifi: add debug print for parsing firmware TLV
When parsing TLV during loading firmware, if encounter any TLV error,
log the error message to help debugging.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-07-02 11:10:01 -07:00
Wey-Yi Guy
c04f9f2203 iwlwifi: fix fw_restart module parameter
fw_restart module parameter was broken by the recent check for stuck
queue patch, driver check the fx_restart module parameter
before reload the firmware; but the stuck queue timer kick in after
firmware error and reload the firmware even fw_restart=0. In this case,
driver should not reload the firmware, it is important to help debugging
uCode error.

The only case we can ignore the module parameter is when user request
firmware reload from debugfs, which can bypass the checking and perform
firmware reload all the time.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-07-02 11:08:52 -07:00
Reinette Chatre
e4c064728c iwlwifi: remove key information during device restart
When there is a firmware error or the firmware is reloaded for some other
reason we currently clear all station information, including keys
associated with them. A problem is that we do not clear some other
information regarding keys that are not stored in the station structs.

The consequence of this is that when the device is reconfigured after the
firmware reload we can, among other things, run out of key indices.

This fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=16232
http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2221

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
2010-07-02 10:44:19 -07:00
Wey-Yi Guy
679db79467 iwlwifi: add disable rf calibration support for 6000g2a and 6000g2b
Radio calibration (chain noise and sensitivity) should be allowed to
be disabled from debugfs if compiled with CONFIG_IWLWIFI_DEBUGFS. For both
6000g2a and 6000g2b, the parameters are missing in "cfg", which cause
user can not disable the radio calibration manually; add the support to
allow the operation.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-06-25 15:20:41 -07:00
Reinette Chatre
2b2129f159 iwlagn: reduce severity of disconnected antennas warning
This message is encountered regularly and we need to take a closer look at
the circumstances under which it is printed before presenting errors to
users.

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-06-25 15:20:41 -07:00
Wey-Yi Guy
cfecc6b492 iwlwifi: turn on RTS/CTS after aggregation become operational
If RTS/CTS protection is needed for HT, wait until get operational
notification from mac80211, then inform uCode to switch to RTS/CTS
through RXON command.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-06-25 15:20:41 -07:00
Johannes Berg
0ab84cff8b iwlwifi: read rfkill during resume
When resuming from hibernate or suspend,
the status of the rfkill switch isn't
known since it might have been toggled
while the system was asleep. Therefore,
we need to read out the status at resume
time to make sure the system knows about
an up-to-date status.

Reported-by: Mark Tung <mark.y.tung@intel.com>
Tested-by: Mark Tung <mark.y.tung@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-06-25 15:20:18 -07:00
Daniel Halperin
278c2f6faa iwlwifi: update LQ for bcast station on channel change
The rate table in the bcast LQ is computed only when the station is
allocated, and chooses the lowest rate for the band. Because of when this
occurs, this is the 2.4 GHz band and uses the 0x420a (CCK, 1 Mbps) rate. In 5 GHz
beaconing mode, this rate will prevent beacons from being sent and any other
packets from being received.

We can fix this by re-initializing the bcast station's LQ command when the
channel is changed.

Signed-off-by: Daniel Halperin <dhalperi@cs.washington.edu>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-06-25 14:53:49 -07:00
Wey-Yi Guy
680788aca3 iwlwifi: add a mechanism to disable plcp error checking
For some devices, especially the upcoming new devices, the plcp error
rate is different. Before the correct error rate can be determine, also
for the debugging purpose; add the mechanism to disable plcp error checking
which cause radio reset happen.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-06-25 14:52:47 -07:00
Wey-Yi Guy
178d159607 iwlwifi: enable DC calibration based on config parameter
Different devices have different calibration requirement,
some need DC calibration and some don't; make it a cfg parameter
for easy management.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-06-25 14:52:18 -07:00
Wey-Yi Guy
4e3243f549 iwlwifi: name change from signal protection flag
This bit need to be set for both RTS/CTS or CTS-to-self protection, if
CTS-to-self is used, then uCode will  check the RXON_FLG_SELF_CTS_EN
status. Change the name from TX_CMD_FLG_RTS_CTS_MSK to TX_CMD_FLAG_PROT_REQUIRE_MSK
to match the behavior of the bit setting.

Also update comments to reflect which hardware uses which of the TX command
flags.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-06-25 14:50:53 -07:00
Reinette Chatre
e691e19e05 Merge branch 'wireless-2.6' into wireless-next-2.6 2010-06-25 14:47:02 -07:00
Wey-Yi Guy
062bee448b iwlwifi: set TX_CMD_FLAG_PROT_REQUIRE_MSK in tx_flag
When building tx command, always set TX_CMD_FLAG_PROT_REQUIRE_MSK
for 5000 series and up.

Without setting this bit the firmware will not examine the RTS/CTS setting
and thus not send traffic with the appropriate protection. RTS/CTS is is
required for HT traffic in a noisy environment where, without this setting,
connections will stall on some hardware as documented in the patch that
initially attempted to address this:

    commit 1152dcc28c
    Author: Wey-Yi Guy <wey-yi.w.guy@intel.com>
    Date:   Fri Jan 15 13:42:58 2010 -0800

    iwlwifi: Fix throughput stall issue in HT mode for 5000

    Similar to 6000 and 1000 series, RTS/CTS is the recommended
    protection mechanism for 5000 series in HT mode based on the HW design.
    Using RTS/CTS will better protect the inner exchange from interference,
    especially in highly-congested environment, it also prevent uCode encounter
    TX FIFO underrun and other HT mode related performance issues.

For 3945 and 4965, different flags are used for RTS/CTS or CTS-to-Self
protection.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-06-25 14:34:45 -07:00
Johannes Berg
d1e89f37de iwlwifi: fix multicast
commit 3474ad635d
Author: Johannes Berg <johannes.berg@intel.com>
Date:   Thu Apr 29 04:43:05 2010 -0700

    iwlwifi: apply filter flags directly

broke multicast. The reason, it turns out, is that
the code previously checked if ALLMULTI _changed_,
which the new code no longer did, and normally it
_never_ changes. Had somebody changed it manually,
the code prior to my patch there would have been
broken already.

The reason is that we always, unconditionally, ask
the device to pass up all multicast frames, but the
new code made it depend on ALLMULTI which broke it
since now we'd pass up multicast frames depending
on the default filter in the device, which isn't
necessarily what we want (since we don't program it
right now).

Fix this by simply not checking allmulti as we have
allmulti behaviour enabled already anyway.

Reported-by: Maxim Levitsky <maximlevitsky@gmail.com>
Tested-by: Maxim Levitsky <maximlevitsky@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2010-06-25 14:32:06 -07:00
Wey-Yi Guy
051cb98686 iwlwifi: remove non-exist reference
Remove the reference to non-exist function in iwlcore

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-06-21 10:47:45 -07:00
Wey-Yi Guy
936e8a734f iwlwifi: code cleanup to remove un-necessary "goto"
Break out of loop and log the error message when encounter error; this is
better approach than using "goto".

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-06-21 10:47:39 -07:00
Wey-Yi Guy
f84ac08db2 iwlwifi: move calibration from iwlcore to iwlagn
All the calibrations are "agn" only functions, move from iwlcore to
iwlagn.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-06-21 10:47:32 -07:00
Wey-Yi Guy
f3aebeeebc iwlwifi: move _agn statistics related structure
agn and 3945 has different statistics_notif data structure; since 3945
has it statistics_notif data structure inside the _3945 portion of
iwl_priv, it make sense to move the agn statistics_notif into _agn
portion.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-06-21 10:47:25 -07:00
Wey-Yi Guy
278fc73c0c iwlwifi: move agn specific rx related code to iwl-agn-rx.c
To avoid having unnecessary functions in iwlcore.ko, those that
are not shared by agn and 3945, move agn specific rx related code
to iwl-agn-rx.c.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-06-21 10:47:12 -07:00
Jay Sternberg
8756371589 iwlwifi: display ucode SW Error in hex
errors are defined in hex but displayed as decimal.  displaying as hex
debugging easier and eliminated having to manually convert.

Signed-off-by: Jay Sternberg <jay.e.sternberg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-06-21 10:47:03 -07:00
Johannes Berg
09034cb77e iwlwifi: return ucode errors from station management
When station management calls to ucode return
an error we could previously do nothing, but
now that almost all calls are synchronous we
can actually let the error bubble up. Use EIO
as the error as it best indicates a problem
with the device.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-06-21 10:46:50 -07:00
Johannes Berg
e666674eec iwlwifi: use sync commands for keys
Key management can use sync commands
instead of asynchronous ones to have
better error checking.

Also add checks that the commands all
should have the mutex held.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-06-21 10:46:37 -07:00
Johannes Berg
4620fefa59 iwlagn: use mutex for aggregation
Now that the ampdu_action callback can sleep,
we can use the mutex to properly protect the
aggregation data, and return useful errors if
they should happen.

Also, add some sleep and mutex debugging so
we won't call any of the functions that now
require being able to sleep and/or the mutex
to be held in an invalid context.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-06-21 10:46:21 -07:00
John W. Linville
abf52f86aa Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
Conflicts:
	net/mac80211/mlme.c
2010-06-17 16:21:14 -04:00
John W. Linville
a69b03e941 iwlwifi: cancel scan watchdog in iwl_bg_abort_scan
Avoids this:

WARNING: at net/mac80211/scan.c:312 ieee80211_scan_completed+0x5f/0x1f1
[mac80211]()
Hardware name: Latitude E5400
Modules linked in: aes_x86_64 aes_generic fuse ipt_MASQUERADE iptable_nat
nf_nat rfcomm sco bridge stp llc bnep l2cap sunrpc cpufreq_ondemand
acpi_cpufreq freq_table xt_physdev ip6t_REJECT nf_conntrack_ipv6
ip6table_filter ip6_tables ipv6 kvm_intel kvm uinput arc4 ecb
snd_hda_codec_intelhdmi snd_hda_codec_idt snd_hda_intel iwlagn snd_hda_codec
snd_hwdep snd_seq snd_seq_device iwlcore snd_pcm dell_wmi sdhci_pci sdhci
iTCO_wdt tg3 dell_laptop mmc_core i2c_i801 wmi mac80211 snd_timer
iTCO_vendor_support btusb joydev dcdbas cfg80211 bluetooth snd soundcore
microcode rfkill snd_page_alloc firewire_ohci firewire_core crc_itu_t
yenta_socket rsrc_nonstatic i915 drm_kms_helper drm i2c_algo_bit i2c_core video
output [last unloaded: scsi_wait_scan]
Pid: 979, comm: iwlagn Tainted: G        W  2.6.33.3-85.fc13.x86_64 #1
Call Trace:
[<ffffffff8104b558>] warn_slowpath_common+0x77/0x8f
[<ffffffff8104b57f>] warn_slowpath_null+0xf/0x11
[<ffffffffa01bb7d9>] ieee80211_scan_completed+0x5f/0x1f1 [mac80211]
[<ffffffffa02a23f0>] iwl_bg_scan_completed+0xbb/0x17a [iwlcore]
[<ffffffff81060d3d>] worker_thread+0x1a4/0x232
[<ffffffffa02a2335>] ? iwl_bg_scan_completed+0x0/0x17a [iwlcore]
[<ffffffff81064817>] ? autoremove_wake_function+0x0/0x34
[<ffffffff81060b99>] ? worker_thread+0x0/0x232
[<ffffffff810643c7>] kthread+0x7a/0x82
[<ffffffff8100a924>] kernel_thread_helper+0x4/0x10
[<ffffffff8106434d>] ? kthread+0x0/0x82
[<ffffffff8100a920>] ? kernel_thread_helper+0x0/0x10

Reported here:

	https://bugzilla.redhat.com/show_bug.cgi?id=590436

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Reported-by: Mihai Harpau <mishu@piatafinanciara.ro>
Cc: stable@kernel.org
Acked-by: Reinette Chatre <reinette.chatre@intel.com>
2010-06-15 13:35:30 -04:00
Johannes Berg
aa9746af8f iwlwifi: print warning about disconnected antennas
When we detect that not all antennas are
properly connected, we simply disable the
associated chains, but never notify the
user at all. Print out a warning so it is
obvious that happened and we know where
to start looking for related issues.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-06-14 11:00:47 -07:00
Emmanuel Grumbach
2fb291eea7 iwlwifi: rename iwl4965_rx_mpdu_res_start
iwl4965_rx_mpdu_res_start is not 4695 specific, so rename it to more
general name iwl_rx_mpdu_res_start.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-06-14 11:00:25 -07:00
Emmanuel Grumbach
d5b25c9047 iwlwifi: rename rxq->dma_addr
Rename rxq->dma_addr to rxq->bd_dma to better emphasize that the
physical address stands for the receive buffer descriptor's address.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-06-14 11:00:08 -07:00
Wey-Yi Guy
815e629bfe iwlwifi: cancel run time calibration work when going down
Cancel scheduled run time calibration work when interface is going
down.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-06-14 10:59:43 -07:00
Dor Shaish
f5cc6a224d iwlwifi: Fix null pointer referencing in iwl_dbgfs_rx_queue_read.
Test for null pointer prior to access.
Print "Not Allocated" if null pointer.

Signed-off-by: Dor Shaish <dor.shaish@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-06-14 10:59:25 -07:00
Johannes Berg
f4989d9bef iwlwifi: trace full RX
The length contained in the status word doesn't
include the status word's length itself, so we
need to account for that for tracing.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-06-14 10:59:08 -07:00
Shanyu Zhao
b561e8274f iwlagn: verify flow id in compressed BA packet
The flow id (scd_flow) in a compressed BA packet should match the txq_id
of the queue from which the aggregated packets were sent. However, in
some hardware like the 1000 series, sometimes the flow id is 0 for the
txq_id (10 to 19). This can cause the annoying message:
[ 2213.306191] iwlagn 0000:01:00.0: Received BA when not expected
[ 2213.310178] iwlagn 0000:01:00.0: Read index for DMA queue txq id (0),
index 5, is out of range [0-256] 7 7.

And even worse, if agg->wait_for_ba is true when the bad BA is arriving,
this can cause system hang due to NULL pointer dereference because the
code is operating in a wrong tx queue!

Signed-off-by: Shanyu Zhao <shanyu.zhao@intel.com>
Signed-off-by: Pradeep Kulkarni <pradeepx.kulkarni@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-06-14 10:51:37 -07:00
Reinette Chatre
da5ae1cfff iwlwifi: serialize station management actions
We are seeing some race conditions between incoming station management
requests (station add/remove) and the internal unassoc RXON command that
modifies station table. Modify these flows to require the mutex to be held
and thus serializing them.

This fixes http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2207

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-06-14 10:51:16 -07:00
Johannes Berg
6db6340c42 iwlwifi: add missing rcu_read_lock
Using ieee80211_find_sta() needs to be under
RCU read lock, which iwlwifi currently misses,
so fix it.

Cc: stable@kernel.org
Reported-by: Miles Lane <miles.lane@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Reinette Chatre <reinette.chatre@intel.com>
Tested-by: Miles Lane <miles.lane@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-08 14:34:08 -04:00
John W. Linville
9d88477c41 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
Conflicts:
	drivers/net/wireless/iwlwifi/iwl-core.h
2010-06-07 15:13:46 -04:00
John W. Linville
dc1dfe4744 iwlwifi: fix-up botched revert
In the revert of "iwlwifi: move _agn statistics related structure", I
need to use CONFIG_IWLWIFI_DEBUGFS instead of CONFIG_IWLWIFI_DEBUG in
the private structure definition.  Without this patch, it is possible
to get this:

drivers/net/wireless/iwlwifi/iwl-rx.c: In function 'iwl_accumulative_statistics':
drivers/net/wireless/iwlwifi/iwl-rx.c:304: error: 'struct iwl_priv' has no member named 'accum_statistics'
drivers/net/wireless/iwlwifi/iwl-rx.c:305: error: 'struct iwl_priv' has no member named 'delta_statistics'
drivers/net/wireless/iwlwifi/iwl-rx.c:306: error: 'struct iwl_priv' has no member named 'max_delta'
drivers/net/wireless/iwlwifi/iwl-rx.c:321: error: 'struct iwl_priv' has no member named 'accum_statistics'
drivers/net/wireless/iwlwifi/iwl-rx.c:323: error: 'struct iwl_priv' has no member named 'accum_statistics'
drivers/net/wireless/iwlwifi/iwl-rx.c:325: error: 'struct iwl_priv' has no member named 'accum_statistics'
drivers/net/wireless/iwlwifi/iwl-rx.c:327: error: 'struct iwl_priv' has no member named 'accum_statistics'
drivers/net/wireless/iwlwifi/iwl-rx.c:329: error: 'struct iwl_priv' has no member named 'accum_statistics'
drivers/net/wireless/iwlwifi/iwl-rx.c:331: error: 'struct iwl_priv' has no member named 'accum_statistics'
drivers/net/wireless/iwlwifi/iwl-rx.c: In function 'iwl_reply_statistics':
drivers/net/wireless/iwlwifi/iwl-rx.c:484: error: 'struct iwl_priv' has no member named 'accum_statistics'
drivers/net/wireless/iwlwifi/iwl-rx.c:486: error: 'struct iwl_priv' has no member named 'delta_statistics'
drivers/net/wireless/iwlwifi/iwl-rx.c:488: error: 'struct iwl_priv' has no member named 'max_delta'

Reported-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-07 15:09:12 -04:00