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path: root/drivers/net/wireless/ath/ath9k
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2014-03-17ath9k_htc: use common->op_flagsOleksij Rempel5-18/+19
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-17ath9k: move sc_flags to ath_commonOleksij Rempel11-60/+63
we will need it for ath9k_htc, may be other drivers too Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-17ath9k_htc: use ath_beacon_conf.enable_beaconOleksij Rempel3-5/+4
to reduce difference between ath9k and ath9k_htc Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-17ath9k_htc: move beaconq to struct htc_beaconOleksij Rempel3-7/+7
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-17ath9k_htc: use common ath_beacon_configOleksij Rempel3-27/+25
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-17ath9k: move struct ath_beacon_config to commonOleksij Rempel2-9/+9
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-14ath9k: Convert uses of __constant_<foo> to <foo>Joe Perches1-2/+2
The use of __constant_<foo> has been unnecessary for quite awhile now. Make these uses consistent with the rest of the kernel. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-14ath9k_hw: set ANI firstep as absolute values instead of relativeFelix Fietkau1-36/+5
On older chips, the INI value differ in similar ways as cycpwr_thr1, so convert it to absolute values as well. Since the ANI algorithm is different here compared to the old implementation (fewer steps, controlled at a different point in time), it makes sense to use values similar to what would be applied for newer chips, just without relying on INI defaults. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-14ath9k_hw: set ANI cycpwr_thr1 as absolute values instead of relativeFelix Fietkau1-38/+6
The table was copied from the ANI implementation of AR9300. It assumes that the INI values contain a baseline value that is usable as reference from which to increase/decrease based on the noise immunity value. On older chips, the differences are bigger and especially AR5008/AR9001 are configured to much more sensitive values than what is useful. Improve ANI behavior by reverting to the absolute values used in the previous implementation (expressed as a simple formula instead of the old table). Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-14ath9k_hw: remove ANI function restrictions for AP modeFelix Fietkau1-11/+0
The primary purpose of this piece of code was to selectively disable OFDM weak signal detection. The checks for this are elsewhere, and an earlier commit relaxed the restrictions for older chips, which are more sensitive to interference. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-14ath9k: clean up and enhance ANI debugfs fileFelix Fietkau1-30/+28
Unify scnprintf calls and include the current OFDM/CCK immunity level. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-14ath9k: fix ready time of the multicast buffer queueFelix Fietkau1-1/+1
qi->tqi_readyTime is written directly to registers that expect microseconds as unit instead of TU. When setting the CABQ ready time, cur_conf->beacon_interval is in TU, so convert it to microseconds before passing it to ath9k_hw. This should hopefully fix some Tx DMA issues with buffered multicast frames in AP mode. Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-13ath9k: Fix sequence number assignment for non-data framesHelmut Schaa1-2/+2
Since commit 558ff225de80ac95b132d3a115ddadcd64498b4f (ath9k: fix ps-poll responses under a-mpdu sessions) non-data frames would have gotten a sequence number from a TIDs sequence counter instead of using the global sequence counter. This can lead to instable connections. To fix this only select the correct TID if we are processing a data frame. Furthermore, prevent non-data frames to get a sequence number from a TID sequence counter by adding a check to ath_tx_setup_buffer. Cc: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Acked-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-13ath9k_hw: fix unreachable code in baseband hang detection codeFelix Fietkau1-2/+1
The commit "ath9k: reduce baseband hang detection false positive rate" added a delay in the loop checking the baseband state, however it was unreachable due to previous 'continue' statements. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-04Merge branch 'master' of ↵John W. Linville4-41/+51
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless Conflicts: drivers/net/wireless/ath/ath9k/recv.c drivers/net/wireless/mwifiex/pcie.c
2014-03-04ath9k_hw: tweak noise immunity thresholds for older chipsetsFelix Fietkau2-4/+23
Older chipsets are more sensitive to high PHY error counts, and the current noise immunity thresholds were based on tests run at QCA with newer chipsets. This patch brings back the values from the old ANI implementation for old chipsets, and it also disables weak signal detection on an earlier noise immunity level, to improve overall radio stability on affected devices. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-04ath9k_hw: toggle weak signal detection in AP mode on older chipsetsFelix Fietkau1-8/+10
The commit 80b4205b "ath9k: Fix OFDM weak signal detection for AP mode" prevented weak signal detection changes from taking effect in AP mode on all chipsets, claiming it is "not allowed". The main reason for not disabling weak signal detection in AP mode is that typically beacon RSSI is used to track whether it is needed to boost range, and this is unavailable in AP mode for obvious reasons. The problem with not disabling weak signal detection is that older chipsets are very sensitive to high PHY error counts. When faced with heavy noise, this can lead to an excessive amount of "Failed to stop TX DMA" errors in the field. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-04ath9k: fix invalid max frame lengthSylvain Roger Rieunier1-1/+1
According to 802.11n-2012 standard in paragraph PPDU Fromat(20.3.2) HT-mixed format Hearder PPDU contains : L_STF, L_LTF, L_SIG, HT_SIG, HT_STF, HT_LTF they are symbols in the preamble, there are in time unit(us) that's for why it can't be computed in bytes Signed-off-by: Sylvain ROGER RIEUNIER <sylvain.roger.rieunier@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-28ath9k_htc: add function ath9k_regwrite_multiOleksij Rempel1-30/+23
... to remove duplicate code Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-28ath9k_htc: remove unused variable sleepdurationOleksij Rempel1-15/+7
sleepduration is always = intval. Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-28ath9k: remove unused listen_interval and sleepduration.Oleksij Rempel2-15/+7
this variable never changed. Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-28ath9k_htc: use ath9k_cmn_reload_chainmaskOleksij Rempel1-8/+1
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-28ath9k: move ath9k_reload_chainmask_settings to commonOleksij Rempel4-16/+19
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-28ath9k-common: set maxstream=1 for ar9271Oleksij Rempel1-1/+1
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-28ath9k_htc: use ath9k_cmn_setup_ht_capOleksij Rempel1-47/+3
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-28ath9k: move setup_ht_cap to common-initOleksij Rempel3-60/+62
and rename it to ath9k_cmn_setup_ht_cap Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-28ath9k_htc: use ath9k_cmn_init_channels_ratesOleksij Rempel2-118/+6
and ath_common sbands. Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-28ath9k: move ath9k_init_channels_rates to common-initOleksij Rempel8-163/+207
and rename it to ath9k_cmn_init_channels_rates. sbands are move to ath_common as well. Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-25ath9k: fix invalid descriptor discardingFelix Fietkau1-35/+35
Only set sc->rx.discard_next to rx_stats->rs_more when actually discarding the current descriptor. Also, fix a detection of broken descriptors: First the code checks if the current descriptor is not done. Then it checks if the next descriptor is done. Add a check that afterwards checks the first descriptor again, because it might have been completed in the mean time. This fixes a regression introduced in commit 723e711356b5a8a95728a890e254e8b0d47b55cf "ath9k: fix handling of broken descriptors" Cc: stable@vger.kernel.org Reported-by: Marco André Dinis <marcoandredinis@gmail.com> Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-25ath9k: reduce baseband hang detection false positive rateFelix Fietkau1-1/+7
Check if the baseband state remains stable, and add a small delay between register reads. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-25ath9k: make some hardware reset log messages debug-onlyFelix Fietkau1-3/+3
On some chips, baseband watchdog hangs are more common than others, and the driver has support for handling them. Interrupts even after a watchdog hang are also quite common, so there's not much point in spamming the user's logfiles. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-25ath9k: do not set half/quarter channel flags in AR_PHY_MODEFelix Fietkau1-4/+0
5/10 MHz channel bandwidth is configured via the PLL clock, instead of the AR_PHY_MODE register. Using that register is AR93xx specific, and makes the mode incompatible with earlier chipsets. In some early versions, these flags were apparently applied at the wrong point in time and thus did not cause connectivity issues, however now they are causing problems, as pointed out in this OpenWrt ticket: https://dev.openwrt.org/ticket/14916 Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-25ath9k: Use static constJoe Perches1-8/+12
Trivially reduces text size too. $ size drivers/net/wireless/ath/ath9k/debug.o* text data bss dec hex filename 34436 2528 5128 42092 a46c drivers/net/wireless/ath/ath9k/debug.o.new 34464 2528 5128 42120 a488 drivers/net/wireless/ath/ath9k/debug.o.old Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-25ath9k: list more reset causes in debugfsFelix Fietkau1-0/+6
Number of MAC hangs and stuck beacons were missing Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-25ath9k: Enable U-APSD AP mode supportJouni Malinen1-0/+1
mac80211 handles the actual operations, so ath9k can just indicate support for this. Based on initial tests, this combination seems to work fine. Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-24ath9k: fix ps-poll responses under a-mpdu sessionsFelix Fietkau1-2/+3
When passing tx frames to the U-APSD queue for powersave poll responses, the ath_atx_tid pointer needs to be passed to ath_tx_setup_buffer for proper sequence number accounting. This fixes high latency and connection stability issues with ath9k running as AP and a few kinds of mobile phones as client, when PS-Poll is heavily used Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-21ath9k: Fix ETSI compliance for AR9462 2.0Sujith Manoharan1-2/+2
The minimum CCA power threshold values have to be adjusted for existing cards to be in compliance with new regulations. Newer cards will make use of the values obtained from EEPROM, support for this was added earlier. To make sure that cards that are already in use and don't have proper values in EEPROM, do not violate regulations, use the initvals instead. Cc: stable@vger.kernel.org Reported-by: Jeang Daniel <dyjeong@qca.qualcomm.com> Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-21ath9k: protect tid->sched checkStanislaw Gruszka1-3/+5
We check tid->sched without a lock taken on ath_tx_aggr_sleep(). That is race condition which can result of doing list_del(&tid->list) twice (second time with poisoned list node) and cause crash like shown below: [424271.637220] BUG: unable to handle kernel paging request at 00100104 [424271.637328] IP: [<f90fc072>] ath_tx_aggr_sleep+0x62/0xe0 [ath9k] ... [424271.639953] Call Trace: [424271.639998] [<f90f6900>] ? ath9k_get_survey+0x110/0x110 [ath9k] [424271.640083] [<f90f6942>] ath9k_sta_notify+0x42/0x50 [ath9k] [424271.640177] [<f809cfef>] sta_ps_start+0x8f/0x1c0 [mac80211] [424271.640258] [<c10f730e>] ? free_compound_page+0x2e/0x40 [424271.640346] [<f809e915>] ieee80211_rx_handlers+0x9d5/0x2340 [mac80211] [424271.640437] [<c112f048>] ? kmem_cache_free+0x1d8/0x1f0 [424271.640510] [<c1345a84>] ? kfree_skbmem+0x34/0x90 [424271.640578] [<c10fc23c>] ? put_page+0x2c/0x40 [424271.640640] [<c1345a84>] ? kfree_skbmem+0x34/0x90 [424271.640706] [<c1345a84>] ? kfree_skbmem+0x34/0x90 [424271.640787] [<f809dde3>] ? ieee80211_rx_handlers_result+0x73/0x1d0 [mac80211] [424271.640897] [<f80a07a0>] ieee80211_prepare_and_rx_handle+0x520/0xad0 [mac80211] [424271.641009] [<f809e22d>] ? ieee80211_rx_handlers+0x2ed/0x2340 [mac80211] [424271.641104] [<c13846ce>] ? ip_output+0x7e/0xd0 [424271.641182] [<f80a1057>] ieee80211_rx+0x307/0x7c0 [mac80211] [424271.641266] [<f90fa6ee>] ath_rx_tasklet+0x88e/0xf70 [ath9k] [424271.641358] [<f80a0f2c>] ? ieee80211_rx+0x1dc/0x7c0 [mac80211] [424271.641445] [<f90f82db>] ath9k_tasklet+0xcb/0x130 [ath9k] Bug report: https://bugzilla.kernel.org/show_bug.cgi?id=70551 Reported-and-tested-by: Max Sydorenko <maxim.stargazer@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-13Merge branch 'master' of ↵John W. Linville6-28/+62
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
2014-02-13ath9k: Calculate IQ-CAL medianSujith Manoharan1-12/+79
This patch adds a routine to calculate the median IQ correction values for AR955x, which is used for outlier detection. The normal method which is used for all other chips is bypassed for AR955x. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-13ath9k: Expand the IQ coefficient arraySujith Manoharan1-20/+21
This will be used for storing data for mutiple IQ calibration runs, for AR955x. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-13ath9k: Modify IQ calibration for AR955xSujith Manoharan1-22/+59
IQ calibration post-processing for AR955x is different from other chips - instead of just doing it as part of AGC calibration once, it is triggered 3 times and a median is determined. This patch adds initial support for changing the calibration behavior for AR955x. Also, to simplify things, a helper routine to issue/poll AGC calibration is used. For non-AR955x chips, the iqcal_idx (which will be used in subsequent patches) is set to zero. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-13ath9k: Fix magnitude/phase calculationSujith Manoharan1-3/+7
Incorrect values are programmed in the registers containing the IQ correction coefficients by the IQ-CAL post-processing code. Fix this. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-13ath9k: Rename ar9003_hw_tx_iqcal_load_avg_2_passesSujith Manoharan1-4/+4
Use ar9003_hw_tx_iq_cal_outlier_detection instead. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-13ath9k: Check explicitly for IQ calibrationSujith Manoharan1-1/+6
In chips like AR955x, the initvals contain the information whether IQ calibration is to be done in the HW when an AGC calibration is triggered. Check if IQ-CAL is enabled in the initvals before flagging 'txiqcal_done' as true. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-13ath9k: Fix IQ cal post processing for SoCSujith Manoharan1-2/+2
Calibration data is not reused for SoC chips, so call ar9003_hw_tx_iq_cal_post_proc() with the correct argument. The 'is_reusable' flag is currently used only for PC-OEM chips, but it makes things clearer to specify it explicity. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-13ath9k_htc: Add device ID for Buffalo WLI-UV-AG300PMasaki TAGAWA1-0/+2
Buffalo WLI-UV-AG300P is almost the same as Sony UWA-BR100. Signed-off-by: Masaki TAGAWA <masaki@club.kyutech.ac.jp> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-13ath9k: Remove ath9k rate controlSujith Manoharan9-1771/+8
There is no benefit in retaining the legacy rate control module in the driver codebase. It is known to be buggy and has less than optimal performance in real-world environments compared with minstrel. The only reason that it was kept when we made the switch to minstrel as default was that it showed higher throughput numbers in a clean/ideal environment. This is no longer the case and minstrel can push ath9k to the same throughput levels. In TCP, with 3-stream cards, more than 295 Mbps can be obtained in open air, with 2-stream cards, 210 Mbps is easily reached. To test performance issues, instead of using a broken rate control module, it is better to use the fixed-rate interface provided by mac80211 anyway. The ath9k RC has not received any bug fixes in years and is just bit-rotting away - this patch removes it. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-13ath9k_htc: catch fw panic patternOleksij Rempel2-0/+48
... and print what we get. Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-13ath9k_htc: remove useless memcpyOleksij Rempel1-5/+5
after switch to common fucntions we do not need this memcpy any more. Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
generated by cgit v1.2.3 (git 2.39.0) at 2025-09-16 17:17:18 +0300