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2012-06-19Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davemJohn W. Linville42-1274/+1866
Conflicts: drivers/net/wireless/iwlwifi/dvm/testmode.c drivers/net/wireless/iwlwifi/pcie/trans.c
2012-06-14iwlwifi: unlock on error pathDan Carpenter1-1/+3
We introduced a lock here in ff1ffb850b ("iwlwifi: fix dynamic loading"). But we missed an error path which needs an unlock. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-13Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirelessJohn W. Linville3-19/+12
Conflicts: drivers/net/wireless/ath/ath9k/main.c net/bluetooth/hci_event.c
2012-06-13ath9k_hw: remove MCI_STATE_SET_BT_SLEEPRajkumar Manoharan3-5/+1
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-13ath9k_hw: remove MCI_STATE_CONT_* stateRajkumar Manoharan4-28/+10
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-13ath9k_hw: remove MCI_STATE_BTRajkumar Manoharan3-13/+6
remove MCI_STATE_BT and use bt_state instead. Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-13ath9k_hw: remove p_data argument from ar9003_mci_stateRajkumar Manoharan4-32/+27
As p_data is unuse, lets remove it from ar9003_mci_state. Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-13ath9k_hw: remove MCI_STATE_NEED_FLUSH_BT_INFORajkumar Manoharan2-18/+0
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-13ath9k_hw: remove MCI_STATE_SEND_WLAN_CHANNELSRajkumar Manoharan3-18/+11
Add a MCI util function to send wlan channel info to BT. Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-13ath9k_hw: add utility function to set BT versionRajkumar Manoharan3-22/+16
Add a utility function to set bluetooth version and remove MCI_STATE_SET_BT_COEX_VERSION. Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-13ath9k_hw: cleanup MCI gpm offset stateRajkumar Manoharan4-105/+110
Add utility functions to get and test GPM offset and remove MCI_STATE*_GPM_OFFSET states. Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-13ath9k: Fix softlockup in AR9485Mohammed Shafi Shajakhan1-0/+8
steps to recreate: load latest ath9k driver with AR9485 stop the network-manager and wpa_supplicant bring the interface up Call Trace: [<ffffffffa0517490>] ? ath_hw_check+0xe0/0xe0 [ath9k] [<ffffffff812cd1e8>] __const_udelay+0x28/0x30 [<ffffffffa03bae7a>] ar9003_get_pll_sqsum_dvc+0x4a/0x80 [ath9k_hw] [<ffffffffa05174eb>] ath_hw_pll_work+0x5b/0xe0 [ath9k] [<ffffffff810744fe>] process_one_work+0x11e/0x470 [<ffffffff8107530f>] worker_thread+0x15f/0x360 [<ffffffff810751b0>] ? manage_workers+0x230/0x230 [<ffffffff81079af3>] kthread+0x93/0xa0 [<ffffffff815fd3a4>] kernel_thread_helper+0x4/0x10 [<ffffffff81079a60>] ? kthread_freezable_should_stop+0x70/0x70 [<ffffffff815fd3a0>] ? gs_change+0x13/0x13 ensure that the PLL-WAR for AR9485/AR9340 is executed only if the STA is associated (or) IBSS/AP mode had started beaconing. Ideally this WAR is needed to recover from some rare beacon stuck during stress testing. Before the STA is associated/IBSS had started beaconing, PLL4(0x1618c) always seem to have zero even though we had configured PLL3(0x16188) to query about PLL's locking status. When we keep on polling infinitely PLL4's 8th bit(ie check for PLL locking measurements is done), machine hangs due to softlockup. fixes https://bugzilla.redhat.com/show_bug.cgi?id=811142 Reported-by: Rolf Offermanns <rolf.offermanns@gmx.net> Cc: stable@vger.kernel.org Tested-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-13ath9k: fix btcoex duty cycleRajkumar Manoharan1-7/+7
* Reset duty cycle before updating btcoex scheme. Otherwise duty cycle reaches max limit and never be reduced again * Adjust duty cycle with proper BDR profile value Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-13ath9k: defer btcoex scheme updateRajkumar Manoharan3-3/+15
As btcoex scheme updation might sleep, remove the function call from tasklet context and queue it up as a separate work. Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-13ath9k: keep btcoex period in millisecondsRajkumar Manoharan2-6/+5
btcoex periord is converted into micro seconds during initialization and converted back to milli seconds while starting timer. As MCI code handles btcoex period in msec, lets keep the btcoex timer in msec and convert them into other form whenever needed. Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-13ath9k: simplify btcoex profile managementRajkumar Manoharan1-24/+24
This patch simplifies profile management utility functions. * Separate find_profile from add/del functions * Return correct values when the profile list is empty or profile is ot found * flush the profiles when there are entries in the list Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-13ath9k_hw: process MCI interrupts only when btcoex is enabledRajkumar Manoharan1-2/+5
let us process MCI interrupts only when BTCOEX is enabled to avoid processing bogus interrupts. Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-13ath9k_hw: program OBS register only when MCI is disabledRajkumar Manoharan1-1/+2
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-13ath9k_hw: fix incorrect LNA register settingsRajkumar Manoharan3-17/+11
After a full reset, mci_reset will put LNA update to the setting for 2G mode. Those registers need to be forced to update when the channel is in 5G. Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-13ath9k_hw: check GPM HW write pointer before chip resetRajkumar Manoharan3-0/+22
Both "MAC Warm Reset" and "MCI Reset Rx" will reset GPM HW write_ptr. We should check software cached write_ptr against HW write_ptr before reset. Otherwise the pending DMA data will be lost. Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-13ath9k_hw: Fix AR9462 power consumption on idle associatedRajkumar Manoharan3-2/+45
The HW statemachine is sometimes found stuck in the state WL_LNA_CTRL_DISABLE when BT is in sleep, which will cause TX_HOLD always asserted and resmgr stuck in PENDING_TX state Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-13ath9k: restore power state on set channel failureRajkumar Manoharan1-0/+1
Not doing so, could cause imbalance in powersave count. Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-13ath9k: choose legacy rate as last rate of MRR seriesRajkumar Manoharan1-9/+8
Choose legacy rate as the last rate of Multi Rate Retry series if and only if the last selected rate is MCS and having higher PER rate. The current code fills a legacy rate as last one even though the previous rates in the series are having good PER value. This could limit the aggregation that affects the uplink performance. Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-13ath9k_hw: Update initvals for AR9462Sujith Manoharan1-1/+1
Adjust quick_drop value in the baseband AGC register to improve RX in HT20 mode. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-13brcmfmac: expose sdio internal counters in debugfsArend van Spriel3-93/+175
The structure brcmf_sdio contains a number of counters that are useful for debugging. These were not available in user-space. This patch exposes them in debugfs under the filename 'counters'. Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-13brcmfmac: add debugfs helper functionsArend van Spriel5-0/+98
This patch adds debugfs support to brcmfmac. It provide helper functions to setup the debugfs folder structure for the driver, which has following hierarchy: <debugfs_mount>/brcmfmac/<dev_name>/ ie.: /sys/kernel/debug/brcmfmac/mmc0:0001:2/ The new source file provides functions to create and remove the two folders and a function to retrieve the device-specific folder so files can be created in it. Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-13brcmsmac: fix smatch warning found in ampdu.cArend van Spriel1-3/+2
This patch fixes potential NULL pointer dereference in ampdu. This was found running smatch static code checker. Smatch warning says: drivers/net/wireless/brcm80211/brcmsmac/ampdu.c:741 brcms_c_sendampdu() warn: variable dereferenced before check 'p' Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-13brcmsmac: remove brcms_set_hint() functionArend van Spriel1-11/+3
The function brcms_set_hint() does not add any functionality so regulatory_hint() can be called directly. The error value has been removed from the message when regulatory_hint() fails. Reported-by: Seth Forshee <seth.forshee@canonical.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-13ath9k: Fix softlockup in AR9485Mohammed Shafi Shajakhan1-0/+9
steps to recreate: load latest ath9k driver with AR9485 stop the network-manager and wpa_supplicant bring the interface up Call Trace: [<ffffffffa0517490>] ? ath_hw_check+0xe0/0xe0 [ath9k] [<ffffffff812cd1e8>] __const_udelay+0x28/0x30 [<ffffffffa03bae7a>] ar9003_get_pll_sqsum_dvc+0x4a/0x80 [ath9k_hw] [<ffffffffa05174eb>] ath_hw_pll_work+0x5b/0xe0 [ath9k] [<ffffffff810744fe>] process_one_work+0x11e/0x470 [<ffffffff8107530f>] worker_thread+0x15f/0x360 [<ffffffff810751b0>] ? manage_workers+0x230/0x230 [<ffffffff81079af3>] kthread+0x93/0xa0 [<ffffffff815fd3a4>] kernel_thread_helper+0x4/0x10 [<ffffffff81079a60>] ? kthread_freezable_should_stop+0x70/0x70 [<ffffffff815fd3a0>] ? gs_change+0x13/0x13 ensure that the PLL-WAR for AR9485/AR9340 is executed only if the STA is associated (or) IBSS/AP mode had started beaconing. Ideally this WAR is needed to recover from some rare beacon stuck during stress testing. Before the STA is associated/IBSS had started beaconing, PLL4(0x1618c) always seem to have zero even though we had configured PLL3(0x16188) to query about PLL's locking status. When we keep on polling infinitely PLL4's 8th bit(ie check for PLL locking measurements is done), machine hangs due to softlockup. fixes https://bugzilla.redhat.com/show_bug.cgi?id=811142 Reported-by: Rolf Offermanns <rolf.offermanns@gmx.net> Cc: stable@vger.kernel.org [3.0+] Tested-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-13iwlwifi: WARN only once when we have trouble in reclaimEmmanuel Grumbach1-1/+2
This flow can actually happen due to a corner case in mac80211: the station is deleted before we get a chance to reclaim all the packets in flight in AGG queue. The tid_data for this station is zeroed, and we lose the match with the Tx queue. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-06-13iwlwifi: use request_module instead of _nowaitJohannes Berg1-1/+10
Since request_module_nowait() can't be backported use request_module() instead -- we don't need the asynchronous behaviour of request_module_nowait() here since we're running in the firmware request work struct. Tested-by: Donald H Fry <donald.h.fry@intel.com> Reviewed-by: Donald H Fry <donald.h.fry@intel.com> Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-06-13iwlwifi: fix 6035 device parametersJohannes Berg1-0/+1
Due to commit 26a7ca9a71a ("iwlwifi: refactor EEPROM reading/parsing") adding a new parameter, while commit d2c8b15d0cb ("iwlwifi: use correct supported firmware for 6035 and 6000g2") added a new device structure we need to add the parameter to the new device structure to make 6035 device work. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-06-13Merge remote-tracking branch 'wireless-next/master' into iwlwifi-nextJohannes Berg104-2782/+7031
2012-06-13iwlwifi: warn if TFD index and WiFi Seq don't matchEmmanuel Grumbach1-0/+13
For AGG queues, we must match between the WiFi sequence number and the TFD number. This is a HW (SCD) requirement. This is a take two of my iwlwifi: add debug in Tx path in AGG flow This will allow us to catch bad cases in which the packets aren't in the right place on the ring. which disappeared during code move. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-06-13iwlwifi: don't modify the timer if we don't TxEmmanuel Grumbach1-1/+2
In fragmentation we don't update the write pointer of the HW immediately. So we shouldn't modify the timer in that case. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-06-13iwlwifi: turn on a lockdep assertionDan Carpenter1-1/+1
CMD_SYNC is zero so the if (cmd->flags & CMD_SYNC) is never true and we never check the assertion. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-06-13iwlwifi: print even more info when a queue is stuckEmmanuel Grumbach1-4/+22
Since the queue gets stuck from time to time, we are trying to get as much information as we can when this occurs. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-06-13iwlwifi: Fix Makefile build order for built-in driverBrandon Misemer1-4/+5
When the driver is built into the kernel instead of a module when the system boots it results in a panic. The order things are built in results in their initialization order when built into the kernel. Wifi has to be initialized before mvm or dvm. Reviewed-by: Donald H Fry <donald.h.fry@intel.com> Tested-by: Donald H Fry <donald.h.fry@intel.com> Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Brandon Misemer <brandon.misemer@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-06-13iwlwifi: comment that setting driver_data overrides info->controlEmmanuel Grumbach1-0/+1
Using the driver_data area in ieee80211_tx_info which resides in the CB overrides the info->control field. Add a comment to prevent mistakes. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-06-13iwlwifi: remove lock around txq_enableEmmanuel Grumbach3-26/+5
This locking isn't needed. The only locking we need is when we access prph registers but there is already a separate lock for that. Since we haven't returned from the mac80211's IEEE80211_AMPDU_TX_OPERATIONAL ampdu_action, we cannot receive any Tx frame for that sta / tid while enabling the queue. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-06-13iwlwifi: don't configure a txq that is being disabledEmmanuel Grumbach2-47/+31
This is not needed, we just need to tell the SCD not to use that queue. We will reconfigure that queue when we will use it again. Clean up a bit the code on the way. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-06-13iwlwifi: print more info when a queue is stuckEmmanuel Grumbach2-1/+14
Print some more info from the SCD's SRAM and dump the TRB from the FH. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-06-13iwlwifi: iwl_{read,write}_targ_mem_words takes dwordsEmmanuel Grumbach4-21/+21
Change its name to better reflect this. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-06-13iwlwifi: s/iwl_read_targ_mem_words/iwl_read_targ_mem_bytesEmmanuel Grumbach2-3/+3
This macro gets the bufsize in bytes. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-06-13iwlwifi: fix dynamic loadingJohannes Berg1-0/+23
Add locking to the dynamic loading code to prevent corrupting the list if multiple device ever init at the same time (which cannot happen for multiple PCI devices, but could happen when different busses init concurrently.) Also remove a device from the list when it stops so the list isn't left corrupted, including a fix from Don to not crash when it was never added. Reviewed-by: Donald H Fry <donald.h.fry@intel.com> Tested-by: Donald H Fry <donald.h.fry@intel.com> Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Don Fry <donald.h.fry@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-06-12Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller9-26/+52
Conflicts: MAINTAINERS drivers/net/wireless/iwlwifi/pcie/trans.c The iwlwifi conflict was resolved by keeping the code added in 'net' that turns off the buggy chip feature. The MAINTAINERS conflict was merely overlapping changes, one change updated all the wireless web site URLs and the other changed some GIT trees to be Johannes's instead of John's. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-12mwifiex: fix incorrect privacy setting in beacon and probe responseAvinash Patil1-0/+11
Test procedure: 1. Start AP with security setting (e.g. WPA2) 2. Stop AP 3. Start AP with open security Here it's observed that privacy is enabled in beacons and probe responses. This patch fixes it by checking the privacy parameter from cfg80211_ap_settings. If privacy is not set in cfg80211_ap_settings, set open authentication and no encryption in FW. Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-12Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davemJohn W. Linville159-5577/+9805
2012-06-12Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirelessJohn W. Linville9-26/+51
Conflicts: MAINTAINERS drivers/net/wireless/iwlwifi/pcie/trans.c
2012-06-11ath9k_hw: Initvals update for AR9462Sujith Manoharan1-0/+1
MSI is enabled by default for most of the 4th generation chips. Add this for AR9462 - this fixes PowerSave operation, the chip was not entering Network-Sleep mode earlier. With proper powering down of the MAC now, power consumption in associated state is reduced considerably. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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