Commit Graph

1889 Commits

Author SHA1 Message Date
Wey-Yi Guy 0975cc8fbf iwlwifi: separate thermal throttling function
"Thermal Throttling" is an advance feature which only available for
newer _agn devices. Move from iwl-core to iwl-agn for better code
organization.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-24 16:28:07 -04:00
Johannes Berg 97359d1235 mac80211: use cipher suite selectors
Currently, mac80211 translates the cfg80211
cipher suite selectors into ALG_* values.
That isn't all too useful, and some drivers
benefit from the distinction between WEP40
and WEP104 as well. Therefore, convert it
all to use the cipher suite selectors.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-16 16:45:11 -04:00
Johannes Berg a85d7cca12 iwlwifi: track IBSS manager status
Only the IBSS manager, ie. the station that sent
the IBSS beacon last, should be replying to probe
responses. This requires implementing the mac80211
tx_last_beacon callback, which we can do thanks to
the ucode beacon notification.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-16 15:26:38 -04:00
Wey-Yi Guy 07d4f1ad2c iwlwifi: make iwl_set_hw_params static to _agn
iwl_set_hw_params() only used by _agn, make it static

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-16 15:26:38 -04:00
Wey-Yi Guy 49ded76bd5 iwlagn: log pci revision id
Log the information after reading the PCI_REVISION_ID
from pci config space,

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-16 15:26:37 -04:00
Wey-Yi Guy 3867fe0477 iwlwifi: make iwl_hw_detect static to _agn
iwl_hw_detect() only used by _agn, make it static

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-16 15:26:37 -04:00
Stanislaw Gruszka c240879f34 iwlwifi: make scan workqueue functions static
We do not need export iwl_bg.*scan.*() functions just for initialize
workqueue in other module. Making that functions static helps with
iwl-scan.c code review a bit.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-16 15:26:36 -04:00
John W. Linville 9714d315d2 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 2010-08-16 14:40:44 -04:00
John W. Linville 1a7123cdd9 iwlwifi: disable aspm by default
Some iwlwifi devices inexplicably disconnect themselves from the PCI-E
bus causing the predictable failures.  This seems to disappear if ASPM
is disabled.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-16 14:39:47 -04:00
Johannes Berg 94597ab23e iwlagn: fix rts cts protection
Currently the driver will try to protect all frames,
which leads to a lot of odd things like sending an
RTS with a zeroed RA before multicast frames, which
is clearly bogus.

In order to fix all of this, we need to take a step
back and see what we need to achieve:
 * we need RTS/CTS protection if requested by
   the AP for the BSS, mac80211 tells us this
 * in that case, CTS-to-self should only be
   enabled when mac80211 tells us
 * additionally, as a hardware workaround, on
   some devices we have to protect aggregated
   frames with RTS

To achieve the first two items, set up the RXON
accordingly and set the protection required flag
in the transmit command when mac80211 requests
protection for the frame.

To achieve the last item, set the rate-control
RTS-requested flag for all stations that we have
aggregation sessions with, and set the protection
required flag when sending aggregated frames (on
those devices where this is required).

Since otherwise bugs can occur, do not allow the
user to override the RTS-for-aggregation setting
from sysfs any more.

Finally, also clean up the way all these flags get
set in the driver and move everything into the
device-specific functions.

Cc: stable@kernel.org [2.6.35]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-09 15:18:57 -04:00
Johannes Berg a24d52f390 iwlwifi: fix locking assertions
spin_is_locked() can return zero on some (UP?)
configurations because locks don't exist, and
that causes an endless amount of warnings. Use
lockdep_assert_held() instead, which has two
advantages:
 1) it verifies the current task is holding
    the lock or mutex
 2) it compiles away completely when lockdep
    is not enabled

Cc: stable@kernel.org [2.6.34+, maybe only parts of patch]
Reported-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-06 13:53:58 -04:00
Johannes Berg e95b743536 iwlwifi: fix TX tracer
The TX tracing code copies with the wrong length,
which will typically copy too little data. Fix
this by using the correct length variable.

Cc: stable@kernel.org [2.6.32+]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-06 13:53:58 -04:00
Andy Lutomirski 2411054ae9 iwlagn: Improve aggregation failure error messages
82ca934176 added scary looking
but harmless error messages.  Make them clearer and make the
actual failure message show up with the same severity as the
harmless one.

Signed-off-by: Andy Lutomirski <luto@mit.edu>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-04 15:30:55 -04:00
Wey-Yi Guy 74dee2c3e1 iwlagn: fix typo in ucode_bt_stats_read debugfs
small typo fix in ucode_bt_stats_read debugfs file

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-04 15:27:38 -04:00
Wey-Yi Guy 735df29a06 iwlwifi: BA scd_flow not match condition detected
It is a uCode bug which cause the tx queue id not match scd_flow
in compressed block ack frame, and it need to be addressed in uCode.
Currently, driver will log the information when it happen.

Since it is possible happen very often and we do not want to fill the syslog,
so don't enable the logging by default.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-04 15:27:37 -04:00
Johannes Berg 5fc97f7789 iwlwifi: fix compile warning
When iwlwifi is compiled w/o debug, we get
this warning:
iwl-agn.c: In function ‘iwlagn_load_firmware’:
iwl-agn.c:2014: warning: passing argument 3 of ‘iwl_print_hex_dump’ discards qualifiers from pointer target type
iwl-debug.h:73: note: expected ‘void *’ but argument is of type ‘const u8 *’

because the const qualifier is missing in the
inline stub. Fix this.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-04 15:27:37 -04:00
Johannes Berg 02f5ba5bac iwlwifi: fix possible recursive locking deadlock
commit f84b29ec0a
Author: Johannes Berg <johannes.berg@intel.com>
Date:   Tue May 18 02:29:13 2010 -0700

    iwlwifi: queue user-initiated scan when doing internal scan

introduced a potential deadlock because it calls
ieee80211_scan_completed() with the priv->mutex
held, but mac80211 may call back into iwlwifi
which would lead to recursive locking. Move this
out from under the mutex.

Cc: stable@kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-04 15:27:36 -04:00
Stanislaw Gruszka d28232b461 iwlwifi: fix scan abort
Fix possible double priv->mutex lock introduced by commit
a69b03e941
"iwlwifi: cancel scan watchdog in iwl_bg_abort_scan" .
We can not call cancel_delayed_work_sync(&priv->scan_check) with
priv->mutex locked because workqueue function iwl_bg_scan_check()
take that lock internally.

We do not need to synchronize when canceling priv->scan_check work.
We can avoid races (sending double abort command or send no
command at all) using STATUS_SCAN_ABORT bit. Moreover
current iwl_bg_scan_check() code seems to be broken, as
we should not send abort commands when currently aborting.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
CC: stable@kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-07-29 12:55:00 -04:00
Joe Perches c96c31e499 drivers/net/wireless: Use wiphy_<level>
Standardize the logging macros used.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-07-27 15:14:13 -04:00
John W. Linville 800f65bba8 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/holtmann/bluetooth-next-2.6
Conflicts:
	drivers/net/wireless/iwlwifi/iwl-commands.h
2010-07-27 11:59:19 -04:00
John W. Linville a6e492b9b5 iwlwifi: assume vif is NULL for internal scans and non-NULL otherwise
The current practice of checking vif for NULL in one place but not
another seems to confuse some static checkers, smatch in particular.
Since vif will only be NULL in the case of internal scans, adjust the
checks accordingly.

Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-07-26 15:09:04 -04:00
John W. Linville da22f795ce iwlagn: use __packed on new structure definitions
"iwlagn: add statistic notification structure for WiFi/BT devices" added
several new '__attribute__ ((packed))' lines.  Change them to the
generic __packed.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-07-26 15:04:12 -04:00
Johannes Berg 1bd14eaf9e iwlwifi: remove spurious semicolons
defines shouldn't be terminated with a
semicolon, the code using them should
supply it. Luckily these are not used
in a context where it matters.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2010-07-23 08:42:45 -07:00
Johannes Berg 6abbe554ba iwlwifi: reduce beacon fill conditions
Since the ibss_beacon variable will only be
filled in the appropriate modes, there's no
reason to be checking the mode again.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2010-07-23 08:42:40 -07:00
Wey-Yi Guy c6fa17ed3f iwlwifi: read multiple MAC addresses
Some devices may have multiple MAC
addresses in their EEPROM, read them
and advertise them to cfg80211.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2010-07-23 08:42:31 -07:00
Johannes Berg 0bc5774f4e iwlwifi: make iwl_mac_beacon_update static
This function is only needed in the same
file it is defined in, i.e. iwl-core.c

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2010-07-23 08:42:18 -07:00
Johannes Berg 704da534af iwlagn: fix firmware loading TLV error path
gcc complains about the firmware loading:

iwl-agn.c: In function ‘iwlagn_load_firmware’:
iwl-agn.c:1860: warning: ‘tlv_len’ may be used uninitialized in this function
iwl-agn.c:1861: warning: ‘tlv_type’ may be used uninitialized in this function
iwl-agn.c:1862: warning: ‘tlv_data’ may be used uninitialized in this function

This is almost correct but we do do break out of the TLV
parsing loop when setting ret. However, the code is hard
to follow, and clearly even the compiler is having issues
with it too.

Additionally, however, the current code is wrong. If there
is a TLV length check error, the code will report
	invalid TLV after parsing: ...
because "len" will still be non-zero as we broke out of
the loop.

So to remove the warning and fix that issue, make the code
easier to read by doing length checking with an error label.
As a result, we can completely remove the "ret" variable.

Also, while at it, remove the "fixed_tlv_size" variable
since each TLV type has its own specified length, it just
happens that we have only variable length, flags (0 length)
and u32 TLVs right now. It should still be checked with more
explicit length checks to make it easier to understand.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2010-07-23 08:42:04 -07:00
Wey-Yi Guy 6a822d060c iwlwifi: add TLV to specify the size of phy calibration table
Different devices have different size of phy calibration table; add
new TLV to specify the size. If the TLV is not part of uCode header, the
default table size will be used to make sure the backward
compatibilities.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2010-07-23 08:41:46 -07:00
Wey-Yi Guy ffb7d896b3 iwlagn: add bluetooth stats to debugfs
For WiFi/BT combo devices, add bluetooth statistics counter
read function to debugfs.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2010-07-23 08:41:32 -07:00
Wey-Yi Guy 7980fba54e iwlagn: Add support for bluetooth statistics notification
WiFi/BT combo devices has different statistics notification
structure, adding the support here to make sure the structure
align correctly.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2010-07-23 08:41:18 -07:00
Wey-Yi Guy af8ee0553b iwlagn: add .cfg flag to idenfity the need for bt statistics
Only WiFi/BT combo devices need to use bluetooth version of statistics
notification; adding the flag in .cfg file to indicate the need for
using different data structure.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2010-07-23 08:41:04 -07:00
Wey-Yi Guy 325322ee34 iwlagn: add statistic notification structure for WiFi/BT devices
If its WiFi/BT combo device, the statistics notification sent by
uCode will include the additional BT related statistics counters.

Adding new data structure to support the new layout.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2010-07-23 08:40:47 -07:00
Johannes Berg 4ced3f74da mac80211: move QoS-enable to BSS info
Ever since

commit e1b3ec1a2a
Author: Stanislaw Gruszka <sgruszka@redhat.com>
Date:   Mon Mar 29 12:18:34 2010 +0200

    mac80211: explicitly disable/enable QoS

mac80211 is telling drivers, in particular
iwlwifi, whether QoS is enabled or not.

However, this is only relevant for station mode,
since only then will any device send nullfunc
frames and need to know whether they should be
QoS frames or not. In other modes, there are
(currently) no frames the device is supposed to
send.

When you now consider virtual interfaces, it
becomes apparent that the current mechanism is
inadequate since it enables/disables QoS on a
global scale, where for nullfunc frames it has
to be on a per-interface scale.

Due to the above considerations, we can change
the way mac80211 advertises the QoS state to
drivers to only ever advertise it as "off" in
station mode, and make it a per-BSS setting.

Tested-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-07-20 16:02:58 -04:00
Wey-Yi Guy b807b8a16b iwlwifi: "recover_from_tx_stall" function for 4965
"Recover from tx stall" function is available for all devices except
4965, here add the functionality to 4965.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2010-07-17 07:37:50 -07:00
Wey-Yi Guy 9cae611ff2 iwlwifi: more statistics counter for agn in debugfs
Display "wait_for_silence_timeout_cnt" for _agn devices
in debugfs as part of uCode statistics

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2010-07-17 07:37:41 -07:00
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 e300d955de Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem
Conflicts:
	drivers/net/wireless/wl12xx/wl1271_cmd.h
2010-07-13 15:57:29 -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