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path: root/drivers/net/wireless/ath/ath9k
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* ath9k: fix a scheduling while atomic bug in CSA handlingFelix Fietkau2014-04-091-4/+3
| | | | | | | | | | Commit "ath9k: prepare for multi-interface CSA support" added a call to ieee80211_iterate_active_interfaces in atomic context (beacon tasklet), which is crashing. Use ieee80211_iterate_active_interfaces_atomic instead. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: reduce ANI firstep range for older chipsFelix Fietkau2014-04-091-3/+1
| | | | | | | | | Use 0-8 instead of 0-16, which is closer to the old implementation. Also drop the overwrite of the firstep_low parameter to improve stability. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: Enable DFS only when ATH9K_DFS_CERTIFIEDJanusz Dziedzic2014-04-091-0/+2
| | | | | | | | | | | Add DFS interface combination only when CONFIG_ATH9K_DFS_CERTIFIED is set. In other case user can run CAC/beaconing without proper handling of pulse events (without radar detection activated). Reported-by: Cedric Voncken <cedric.voncken@acksys.fr> Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_htc: set IEEE80211_TX_STAT_AMPDU for acked aggregated framesChun-Yeow Yeoh2014-04-091-1/+4
| | | | | | | | Frame aggregation requires the IEEE80211_TX_STAT_AMPDU to be set so that mac80211 can report the last_tx_rate correctly. Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2014-03-252-4/+3
|\ | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: Documentation/devicetree/bindings/net/micrel-ks8851.txt net/core/netpoll.c The net/core/netpoll.c conflict is a bug fix in 'net' happening to code which is completely removed in 'net-next'. In micrel-ks8851.txt we simply have overlapping changes. Signed-off-by: David S. Miller <davem@davemloft.net>
| * ath9k: Fix sequence number assignment for non-data framesHelmut Schaa2014-03-131-2/+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>
| * ath9k_hw: fix unreachable code in baseband hang detection codeFelix Fietkau2014-03-131-2/+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>
* | ath9k: Fix temperature compensationSujith Manoharan2014-03-171-24/+35
| | | | | | | | | | | | | | | | | | The registers for temperature compensation need to be programmed only for active chains. Use the TX chainmask to make sure that this is done properly for QCA953x. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: Disable AR_INTR_SYNC_HOST1_FATAL for QCA953xSujith Manoharan2014-03-172-2/+2
| | | | | | | | | | | | | | | | Along with AR9340 and AR955x, this is also needed for the QCA953x SoC. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: Add QCA953x WMAC platform supportSujith Manoharan2014-03-172-0/+5
| | | | | | | | | | Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k_htc: move DEFAULT_SWBA_RESPONSE check to ath9k_htc_beacon_initOleksij Rempel2014-03-171-17/+5
| | | | | | | | | | | | | | ... to remove some more dups. Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k_htc: use ath9k_cmn_beacon_config_apOleksij Rempel2014-03-171-35/+8
| | | | | | | | | | Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: remove unused ath9k_get_next_tbttOleksij Rempel2014-03-171-27/+0
| | | | | | | | | | Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: move ath9k_beacon_config_ap commonOleksij Rempel2014-03-173-19/+34
| | | | | | | | | | Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k_htc: use ath9k_cmn_beacon_config_adhocOleksij Rempel2014-03-171-28/+7
| | | | | | | | | | Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k_htc: use ath9k_htc_beacon_init in ath9k_htc_beacon_config_adhocOleksij Rempel2014-03-171-19/+12
| | | | | | | | | | Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k_htc: use ath9k_htc_beacon_init in ath9k_htc_beacon_config_apOleksij Rempel2014-03-171-20/+11
| | | | | | | | | | Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k_htc: add ath9k_htc_beacon_init (but not use it)Oleksij Rempel2014-03-171-0/+22
| | | | | | | | | | Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: move ath9k_beacon_config_adhoc to commonOleksij Rempel2014-03-173-19/+29
| | | | | | | | | | Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k_htc: use ath9k_cmn_beacon_config_staOleksij Rempel2014-03-171-82/+2
| | | | | | | | | | Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: move ath9k_beacon_config_sta to common-beaconOleksij Rempel2014-03-175-78/+153
| | | | | | | | | | Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k-common: add nexttbtt and intval to ath_beacon_configOleksij Rempel2014-03-171-0/+2
| | | | | | | | | | Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k|ath9k_htc: move IEEE80211_MS_TO_TU to commonOleksij Rempel2014-03-173-2/+2
| | | | | | | | | | Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: remove unused beacon_qiOleksij Rempel2014-03-171-1/+0
| | | | | | | | | | Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k_htc: sync beacon slot code with ath9kOleksij Rempel2014-03-173-4/+24
| | | | | | | | | | | | | | we will need it for common-beacon Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: remove unused bc_tstampOleksij Rempel2014-03-171-1/+0
| | | | | | | | | | Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k_htc: add ATH_OP_PRIM_STA_VIFOleksij Rempel2014-03-171-0/+4
| | | | | | | | | | | | | | we will need it to make common-beacon code work. Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k_htc: use common->op_flagsOleksij Rempel2014-03-175-18/+19
| | | | | | | | | | Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: move sc_flags to ath_commonOleksij Rempel2014-03-1711-60/+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>
* | ath9k_htc: use ath_beacon_conf.enable_beaconOleksij Rempel2014-03-173-5/+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>
* | ath9k_htc: move beaconq to struct htc_beaconOleksij Rempel2014-03-173-7/+7
| | | | | | | | | | Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k_htc: use common ath_beacon_configOleksij Rempel2014-03-173-27/+25
| | | | | | | | | | Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: move struct ath_beacon_config to commonOleksij Rempel2014-03-172-9/+9
| | | | | | | | | | Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: Convert uses of __constant_<foo> to <foo>Joe Perches2014-03-141-2/+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>
* | ath9k_hw: set ANI firstep as absolute values instead of relativeFelix Fietkau2014-03-141-36/+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>
* | ath9k_hw: set ANI cycpwr_thr1 as absolute values instead of relativeFelix Fietkau2014-03-141-38/+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>
* | ath9k_hw: remove ANI function restrictions for AP modeFelix Fietkau2014-03-141-11/+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>
* | ath9k: clean up and enhance ANI debugfs fileFelix Fietkau2014-03-141-30/+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>
* | ath9k: fix ready time of the multicast buffer queueFelix Fietkau2014-03-141-1/+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>
* | Merge branch 'master' of ↵John W. Linville2014-03-044-41/+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
| * ath9k: fix invalid descriptor discardingFelix Fietkau2014-02-251-35/+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>
| * ath9k: reduce baseband hang detection false positive rateFelix Fietkau2014-02-251-1/+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>
| * ath9k: fix ps-poll responses under a-mpdu sessionsFelix Fietkau2014-02-241-2/+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>
| * ath9k: Fix ETSI compliance for AR9462 2.0Sujith Manoharan2014-02-201-2/+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>
| * ath9k: protect tid->sched checkStanislaw Gruszka2014-02-201-3/+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>
* | ath9k_hw: tweak noise immunity thresholds for older chipsetsFelix Fietkau2014-03-032-4/+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>
* | ath9k_hw: toggle weak signal detection in AP mode on older chipsetsFelix Fietkau2014-03-031-8/+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>
* | ath9k: fix invalid max frame lengthSylvain Roger Rieunier2014-03-031-1/+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>
* | ath9k_htc: add function ath9k_regwrite_multiOleksij Rempel2014-02-281-30/+23
| | | | | | | | | | | | | | ... to remove duplicate code Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k_htc: remove unused variable sleepdurationOleksij Rempel2014-02-281-15/+7
| | | | | | | | | | | | | | sleepduration is always = intval. 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 2.25.1) at 2025-01-06 15:13:41 +0000