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path: root/drivers/net/wireless/ath
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2012-03-28ath9k: Use HW HT capabilites properlySujith Manoharan1-2/+2
The commit "ath9k: Remove aggregation flags" changed how nodes were being initialized. Use the HW HT cap bits to initialize/de-initialize nodes, else we would be accessing an uninitialized entry during a suspend/resume cycle, resulting in a panic. Reported-by: Justin P. Mattock <justinmattock@gmail.com> Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-26ath9k: fix a memory leak in ath_rx_tasklet()Eric Dumazet1-2/+2
commit 0d95521ea7 (ath9k: use split rx buffers to get rid of order-1 skb allocations) added in memory leak in error path. sc->rx.frag should be cleared after the pskb_expand_head() call, or else we jump to requeue_drop_frag and leak an skb. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Jouni Malinen <jouni@qca.qualcomm.com> Cc: Felix Fietkau <nbd@openwrt.org> Cc: John W. Linville <linville@tuxdriver.com> Cc: Trond Wuellner <trond@chromium.org> Cc: Grant Grundler <grundler@chromium.org> Cc: Paul Stewart <pstew@chromium.org> Cc: David Miller <davem@davemloft.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-26ath9k: reduce listen time periodRajkumar Manoharan1-1/+1
When we have downlink traffic alone and the station is going thru bgscan, the client is out of operating channel for around 1000ms which is too long. The mac80211 decides when to switch back to oper channel based on tx queue, bad latency and listen time. As the station does not have tx traffic, the bgscan can easily affect downlink throughput. By reducing the listen time, it helps the associated AP to retain the downstream rate. Cc: Paul Stewart <pstew@google.com> Tested-by: Gary Morain <gmorain@google.com> Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-26ath9k: fix max noise floor thresholdRajkumar Manoharan1-3/+2
Currently the maximum noise floor limit is set as too high (-60dB). The assumption of having a higher threshold limit is that it would help de-sensitize the receiver (reduce phy errors) from continuous interference. But when we have a bursty interference where there are collisions and then free air time and if the receiver is desensitized too much, it will miss the normal packets too. Lets make use of chips specific min, nom and max limits always. This patch helps to improve the connection stability in congested networks. Cc: stable@vger.kernel.org Cc: Paul Stewart <pstew@google.com> Tested-by: Gary Morain <gmorain@google.com> Signed-off-by: Madhan Jaganathan <madhanj@qca.qualcomm.com> Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-16Merge branch 'master' of ↵John W. Linville50-1260/+1452
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem Conflicts: drivers/net/wireless/ath/ath9k/hw.c
2012-03-15ath9k_hw: remove unused initvalsFelix Fietkau1-302/+0
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15ath9k: inline AR9271 1.0 INI overridesFelix Fietkau5-13/+6
Makes them more readable and reduces code size Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15ath9k_hw: remove iniModes_*_tx_gain_9271Felix Fietkau3-26/+19
Program tx gain through iniModesTxGain like on AR9287 Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15ath9k_hw: clean up iniModesAdditionalFelix Fietkau5-30/+22
use iniModesFastClock for 5 ghz fast clock specific settings, and iniAdditional for clock/chip specific initval overrides Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15ath9k_hw: fix AR9380 register settings for channel 14Felix Fietkau1-0/+3
Program the ah->ini_japan2484 INI values which were left out by accident Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15ath9k_hw: fold ar9002_hw_cck_chan14_spread into mode regs initializationFelix Fietkau3-9/+0
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15ath9k_hw: remove iniCommon_*_cck_fir_coeff_9271Felix Fietkau2-8/+0
These arrays are unused Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15ath9k_hw: clean up ath9k_hw_setuprxdescFelix Fietkau1-4/+1
The ATH9K_HW_CAP_AUTOSLEEP check is bogus, the rx status area needs to be cleared on all non-EDMA PCI/AHB based chipsets anyway. Limit the memset to the rx status area to improve performance. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15ath9k_hw: remove ath9k_hw_gettxintrtxqsFelix Fietkau3-11/+2
The driver can just check the mask directly Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15ath9k: optimize register access functionsFelix Fietkau2-4/+4
By checking for NR_CPUS, the compiler can optimize out register access serialization code on non-SMP kernels Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15ath9k_hw: remove ath9k_hw_getdefantennaFelix Fietkau3-8/+0
The default antenna (as programmed by the INI file) is always 0 anyway. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15ath9k_hw: remove ath9k_hw_htc_resetinitFelix Fietkau3-10/+2
Automatically set the ah->htc_reset_init on init and after PHY disable. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15ath9k_hw: clean up tx completion interrupt handlingFelix Fietkau3-8/+5
TXQ_FLAG_TXOKINT_ENABLE and TXQ_FLAG_TXERRINT_ENABLE are always set and used together, and they share the same bitmask in enum ath9k_tx_queue_flags. Simplify the code that tests for these flags. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15ath9k_hw: simplify tx queue interrupt mask handlingFelix Fietkau1-15/+11
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15ath9k: Fix multi-VIF BSS handlingSujith Manoharan5-34/+14
mac80211 provides short preamble information and ERP protection information on a per-BSS basis, which can be used. Remove flags stored in the driver, which was incorrect since they were being used in a global manner. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15ath9k: Remove aggregation flagsSujith Manoharan5-46/+29
SC_OP_TXAGGR and SC_OP_RXAGGR are not really needed. The HT capabilities of the station and HW can be used instead. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15ath9k_hw: Cleanup FastChannelChangeSujith Manoharan3-36/+74
The logic to determine whether to use FCC is a bit convoluted. Use a small helper function to decide whether FCC is to be used. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15ath9k: Remove 'other' VIF countSujith Manoharan3-4/+2
It is not needed and will not be used anyway since unsupported interfaces are not allowed to be created. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15ath9k: Remove unused variablesSujith Manoharan2-6/+0
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15ath9k: Remove unnecessary initializationSujith Manoharan1-3/+0
There is no need to mask out SWBA/BMISS from the interrupt mask in start(). Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-13Merge branch 'for-linville' of git://github.com/kvalo/ath6klJohn W. Linville25-667/+1228
2012-03-13ath6kl: fix debug.c file modeKalle Valo1-0/+0
Commit 7504a3e1 ("ath6kl: add padding to firmware log records") accidentally changed debug.c mode from 100644 to 100755. Revert that back to original. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-13ath6kl: use max_t() in ath6kl_cfg80211_connect()Kalle Valo1-2/+2
ath6kl/cfg80211.c:589: WARNING: max() should probably be max_t(u16, vif->listen_intvl_t, ATH6KL_MAX_WOW_LISTEN_INTL) Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-13ath6kl: fix open parenthesis alignment in ath6kl_sdio_suspend()Kalle Valo1-4/+5
ath6kl/sdio.c:875: CHECK: Alignment should match open parenthesis Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-13ath6kl: replace strict_strtoul() with kstrtoul()Kalle Valo1-17/+2
Recommended by checkpatch. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-13ath6kl: fix regression in ath6kl_upload_board_file()Kalle Valo1-1/+2
My patch 24fc32b3 ("ath6kl: add ath6kl_bmi_write_hi32()") caused a regression in ath6kl_upload_board_file() and the board_address variable was not properly initialised in some cases: ath6kl/init.c:1068:6: warning: ‘board_address’ may be used uninitialized in this function Most likely this broke ar6004 support but I can't test that right now. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-12ath9k: fix going to full-sleep on PS idleFelix Fietkau1-3/+5
The check for PS_WAIT_FOR_TX_ACK was inverted, the hardware should only go to full sleep if no tx is pending. Reported-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: stable@vger.kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-12ath9k: Fix mactime from being clobbered in rx_statusAshok Nagarajan1-2/+2
mactime was being overwritten by the function ath9k_rx_skb_preprocess. Fixed by memsetting rx_status in ath_rx_tasklet. Signed-off-by: Ashok Nagarajan <ashok@cozybit.com> Signed-off-by: Javier Cardona <javier@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-12ath9k: configure bss info at assoc notificationRajkumar Manoharan1-1/+1
The proper place to configure bss info is at assoc notification. So that ath9k continues to work if the supirous bssid notification will be removed in future. Cc: Johannes Berg <johannes@sipsolutions.net> Reported-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-12ath9k_hw: Fix enabling of MCI and RTTMohammed Shafi Shajakhan2-2/+12
tested in AR9462 Rev:2, both hardware capability flag are set Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-12ath9k: Add wiphy name to log messages.Ben Greear2-17/+18
On systems with multiple NICs, it's nice to know which one is producing warnings. Here is an example of the new ouput: ath: wiphy0: Failed to stop TX DMA, queues=0x005! Signed-off-by: Ben Greear <greearb@candelatech.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-12ath9k: Fix BTCOEX shutdownSujith Manoharan1-1/+2
Flush MCI profiles only if MCI is being actually used. This fixes a panic on driver unload when non-MCI devices are being used and btcoex_enable is set. BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<ffffffffa06296d2>] ath_mci_flush_profile+0x12/0x100 [ath9k] Call Trace: [<ffffffffa061befe>] ath9k_stop_btcoex+0x5e/0x80 [ath9k] [<ffffffffa061ed57>] ath9k_stop+0xb7/0x230 [ath9k] [<ffffffffa0533f30>] ieee80211_stop_device+0x50/0x180 [mac80211] [<ffffffffa051f0cf>] ieee80211_do_stop+0x2af/0x6a0 [mac80211] [<ffffffffa051f4da>] ieee80211_stop+0x1a/0x20 [mac80211] [<ffffffff81365d96>] __dev_close_many+0x86/0xe0 [<ffffffff81365ee0>] dev_close_many+0xa0/0x110 [<ffffffff81366038>] rollback_registered_many+0xe8/0x260 [<ffffffff813661cb>] unregister_netdevice_many+0x1b/0x80 [<ffffffffa051e950>] ieee80211_remove_interfaces+0xd0/0x110 [mac80211] [<ffffffffa050c133>] ieee80211_unregister_hw+0x53/0x120 [mac80211] [<ffffffffa061d5a4>] ath9k_deinit_device+0x44/0x70 [ath9k] [<ffffffffa062c1d4>] ath_pci_remove+0x54/0xa0 [ath9k] [<ffffffff81267c46>] pci_device_remove+0x46/0x110 [<ffffffff8131021c>] __device_release_driver+0x7c/0xe0 [<ffffffff81310960>] driver_detach+0xd0/0xe0 [<ffffffff81310078>] bus_remove_driver+0x88/0xe0 [<ffffffff81311122>] driver_unregister+0x62/0xa0 [<ffffffff81268004>] pci_unregister_driver+0x44/0xc0 [<ffffffffa062c8b5>] ath_pci_exit+0x15/0x20 [ath9k] [<ffffffffa063205d>] ath9k_exit+0x15/0x31 [ath9k] [<ffffffff810b92cc>] sys_delete_module+0x18c/0x270 [<ffffffff814373dd>] ? retint_swapgs+0x13/0x1b [<ffffffff8124828e>] ? trace_hardirqs_on_thunk+0x3a/0x3f [<ffffffff81437de9>] system_call_fastpath+0x16/0x1b Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-12ath6kl: Fix merge error in ath6kl_set_ies()Aarthi Thiruvengadam1-24/+21
Portion of the commit id 080eec4fb4 ("ath6kl: Clear the IE in firmware if not set") was overwritten by mistake due to a merge conflict. This patch fixes the code back to how it should be. kvalo: more details to the commit log Signed-off-by: Aarthi Thiruvengadam <athiruve@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-09Merge branch 'master' of ↵John W. Linville19-157/+123
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
2012-03-07ath9k: fix signal strength reporting issuesFelix Fietkau1-5/+7
On A-MPDU frames, the hardware only reports valid signal strength data for the last subframe. The driver also mangled rx_stats->rs_rssi using the ATH_EP_RND macro in a way that may make sense for ANI, but definitely not for reporting to mac80211. This patch changes the code to calculate the signal strength from the rssi directly instead of taking the average value, and flag everything but the last subframe in an A-MPDU to tell mac80211 to ignore the signal strength entirely, fixing signal strength fluctuation issues reported by various users. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-07ath9k: get rid of double queueing of rx frames on EDMAFelix Fietkau3-36/+28
Process rx status directly instead of separating the completion test from the actual rx status processing. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-07ath9k: remove rssi/antenna information from recv debug statsFelix Fietkau2-38/+0
The way this is implemented (simply storing the last value) is absolutely worthless for debugging anything, and the same information is also available through the MAC sample feature, so there's no point in keeping this around. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-07ath9k: make MAC sample statistics optionalFelix Fietkau4-6/+36
They're more expensive than some of the other debug options and only used in very rare situations, so it sometimes makes sense to disable them while leaving in debugfs support. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-07ath9k_hw: use cold instead of warm reset on AR9280Felix Fietkau1-4/+10
Cold reset is more reliable for getting the hardware out of some specific stuck states. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-07ath6kl: make ath6kl_bmi_[read|write]_hi32() endian safeKalle Valo1-3/+10
ath6kl_bmi_[read|write]_hi32() did not have endian support, fix that. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-07ath6kl: fix too long linesKalle Valo3-26/+27
Found by checkpatch: drivers/net/wireless/ath/ath6kl/init.c:78: WARNING: line over 80 characters drivers/net/wireless/ath/ath6kl/init.c:397: WARNING: line over 80 characters drivers/net/wireless/ath/ath6kl/init.c:407: WARNING: line over 80 characters drivers/net/wireless/ath/ath6kl/htc.c:189: WARNING: line over 80 characters drivers/net/wireless/ath/ath6kl/htc.c:704: WARNING: line over 80 characters drivers/net/wireless/ath/ath6kl/htc.c:2452: WARNING: line over 80 characters Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-07ath6kl: document all spinlocksKalle Valo5-0/+36
Also fixes quite a few checkpatch warnings like this: ath6kl/hif.h:226: CHECK: spinlock_t definition without comment Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-07ath6kl: fix open paranthesis alignment in ath6kl_cfg80211_connect()Kalle Valo1-2/+8
ath6kl/cfg80211.c:462: CHECK: Alignment should match open parenthesis Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-07ath6kl: fix error handling ath6kl_target_config_wlan_params()Kalle Valo1-28/+38
The error handling in ath6kl_target_config_wlan_params() was just weird, fix that. This also fixes some of the open parenthesis alignment issues reported by checkpatch. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-07ath6kl: add ath6kl_bmi_read_hi32()Kalle Valo2-16/+11
There are few 32 bit reads from the host interest area. Add ath6kl_bmi_read_hi32() to make it easier to do that. As code is cleaner this also fixes few checkpatch warnings. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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