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path: root/drivers/net/wireless/ath/ath9k/init.c
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* mac80211: add a flag to indicate CCK support for HT clientsFelix Fietkau2013-08-211-1/+2
| | | | | | | | | | | | | | | brcm80211 cannot handle sending frames with CCK rates as part of an A-MPDU session. Other drivers may have issues too. Set the flag in all drivers that have been tested with CCK rates. This fixes a reported brcmsmac regression introduced in commit ef47a5e4f1aaf1d0e2e6875e34b2c9595897bef6 "mac80211/minstrel_ht: fix cck rate sampling" Cc: stable@vger.kernel.org # 3.10 Reported-by: Tom Gundersen <teg@jklm.no> Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* ath9k: Enable WoW only for supported modelsSujith Manoharan2013-06-241-0/+1
| | | | | | | | Since platform support is required for WoW, identify and and enable Wow only for supported cards. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: Add PCI IDs for CUS217Sujith Manoharan2013-06-181-0/+2
| | | | | | | CUS217 is a card based on AR9462. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: Modify IDs to identify CUS230Sujith Manoharan2013-06-181-2/+5
| | | | | | | | | | CUS198 and CUS230 are similar cards, both are AR9485 + xLNA solutions. But, the subsystem IDs differ - identify CUS230 explicitly to make things clearer. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: Add custom parameters for CUS198Sujith Manoharan2013-06-141-0/+21
| | | | | | | | | | | | | | CUS198 is a card based on AR9485. There are differences between the base reference design HB125 and CUS198. Identify such cards based on the PCI subsystem IDs and set HW parameters appropriately. Addresses this bug - https://bugzilla.kernel.org/show_bug.cgi?id=49201 Cc: jkp@iki.fi Cc: gfmichaud@gmail.com Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* Merge branch 'for-john' of ↵John W. Linville2013-06-121-7/+11
|\ | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next Conflicts: drivers/net/wireless/iwlwifi/mvm/mac80211.c
| * Merge remote-tracking branch 'wireless-next/master' into HEADJohannes Berg2013-06-041-7/+10
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Merge to get the wil6210 changes that a cfg80211 change needs. A conflict in drivers/net/wireless/ath/ath9k/init.c was just whitespace changes. Also fix a semantic conflict due to cw1200 using WoWLAN which I had modified in my tree. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * | cfg80211: take WoWLAN support information out of wiphy structJohannes Berg2013-06-031-9/+11
| | | | | | | | | | | | | | | | | | | | | | | | There's no need to take up the space for devices that don't support WoWLAN, and most drivers can even make the support data static const (except where it's modified at runtime.) Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | | ath9k: add support for IEEE80211_TX_CTL_PS_RESPONSEFelix Fietkau2013-06-121-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | Use the UAPSD hardware queue to get PS-Poll responses out as fast as possible and without backoff. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | | Merge branch 'master' of ↵John W. Linville2013-06-121-12/+5
|\ \ \ | |_|/ |/| | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless Conflicts: drivers/net/wireless/ath/ath9k/Kconfig net/mac80211/iface.c
| * | ath9k: Use minstrel rate control by defaultSujith Manoharan2013-06-121-4/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The ath9k rate control algorithm has various architectural issues that make it a poor fit in scenarios like congested environments etc. An example: https://bugzilla.redhat.com/show_bug.cgi?id=927191 Change the default to minstrel which is more robust in such cases. The ath9k RC code is left in the driver for now, maybe it can be removed altogether later on. Cc: stable@vger.kernel.org Cc: Jouni Malinen <jouni@qca.qualcomm.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | ath9k: Disable PowerSave by defaultSujith Manoharan2013-06-121-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Almost all the DMA issues which have plagued ath9k (in station mode) for years are related to PS. Disabling PS usually "fixes" the user's connection stablility. Reports of DMA problems are still trickling in and are sitting in the kernel bugzilla. Until the PS code in ath9k is given a thorough review, disbale it by default. The slight increase in chip power consumption is a small price to pay for improved link stability. Cc: stable@vger.kernel.org Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | ath9k: Fix crash on module unloadSujith Manoharan2013-05-171-6/+4
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make sure that any open relayfs files are closed before unregistering with mac80211, otherwise this crash is seen: [ 1331.097846] BUG: unable to handle kernel paging request at 6b6b6b8b [ 1331.098170] IP: [<c063d0d6>] debugfs_remove+0x26/0x80 [ 1331.098170] *pdpt = 000000002f9aa001 *pde = 0000000000000000 [ 1331.098170] Oops: 0000 [#1] PREEMPT SMP [ 1331.098170] Modules linked in: iptable_raw xt_CT nf_conntrack_ipv4 nf_defrag] [ 1331.098170] Pid: 4794, comm: rmmod Tainted: G WC 3.9.1+ #5 To Be Fi. [ 1331.098170] EIP: 0060:[<c063d0d6>] EFLAGS: 00010202 CPU: 0 [ 1331.098170] EIP is at debugfs_remove+0x26/0x80 [ 1331.098170] EAX: f2f3acd0 EBX: f2f3acd0 ECX: 00000006 EDX: f8622348 [ 1331.098170] ESI: 6b6b6b6b EDI: 00000001 EBP: ee251e14 ESP: ee251e0c [ 1331.098170] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 [ 1331.098170] CR0: 8005003b CR2: 6b6b6b8b CR3: 2e7b7000 CR4: 000007e0 [ 1331.098170] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [ 1331.098170] DR6: ffff0ff0 DR7: 00000400 [ 1331.098170] Process rmmod (pid: 4794, ti=ee250000 task=efaa2560 task.ti=ee25) [ 1331.098170] Stack: [ 1331.098170] f241e170 0000000a ee251e1c f861394d ee251e28 c04e3088 f241e170 4 [ 1331.098170] c04e30fe f45482b0 ee251e54 c04e3187 f25e86b0 ee251e54 f8618748 0 [ 1331.098170] 0000000a 00000001 ee251e68 f860065b f2509e20 f25085a0 f5b6e8a4 8 [ 1331.098170] Call Trace: [ 1331.098170] [<f861394d>] remove_buf_file_handler+0xd/0x20 [ath9k] [ 1331.098170] [<c04e3088>] relay_remove_buf+0x18/0x30 [ 1331.098170] [<c04e30fe>] relay_close_buf+0x2e/0x40 [ 1331.098170] [<c04e3187>] relay_close+0x77/0xf0 [ 1331.098170] [<f8618748>] ? dpd_exit+0x38/0x40 [ath9k] [ 1331.098170] [<f860065b>] ath9k_deinit_softc+0x8b/0xa0 [ath9k] [ 1331.098170] [<f86006b8>] ath9k_deinit_device+0x48/0x60 [ath9k] [ 1331.098170] [<f86107f1>] ath_pci_remove+0x31/0x50 [ath9k] [ 1331.098170] [<c06dbff8>] pci_device_remove+0x38/0xc0 [ 1331.098170] [<c079daa4>] __device_release_driver+0x64/0xc0 [ 1331.098170] [<c079db97>] driver_detach+0x97/0xa0 [ 1331.098170] [<c079cacc>] bus_remove_driver+0x6c/0xe0 [ 1331.098170] [<c079c197>] ? bus_put+0x17/0x20 [ 1331.098170] [<c079cae3>] ? bus_remove_driver+0x83/0xe0 [ 1331.098170] [<c079e709>] driver_unregister+0x49/0x80 [ 1331.098170] [<c06dc138>] pci_unregister_driver+0x18/0x80 [ 1331.098170] [<f8610602>] ath_pci_exit+0x12/0x20 [ath9k] [ 1331.098170] [<f8619ce0>] ath9k_exit+0x17/0x337 [ath9k] [ 1331.098170] [<c09e537d>] ? mutex_unlock+0xd/0x10 [ 1331.098170] [<c04bd36c>] sys_delete_module+0x17c/0x250 [ 1331.098170] [<c0540dc4>] ? do_munmap+0x244/0x2d0 [ 1331.098170] [<c0540e96>] ? vm_munmap+0x46/0x60 [ 1331.098170] [<c09e8dc4>] ? restore_all+0xf/0xf [ 1331.098170] [<c09ebf50>] ? __do_page_fault+0x4c0/0x4c0 [ 1331.098170] [<c04b18e4>] ? trace_hardirqs_on_caller+0xf4/0x180 [ 1331.098170] [<c09ef28d>] sysenter_do_call+0x12/0x38 [ 1331.098170] Code: 90 8d 74 26 00 55 89 e5 83 ec 08 89 1c 24 89 74 24 04 3e 82 [ 1331.098170] EIP: [<c063d0d6>] debugfs_remove+0x26/0x80 SS:ESP 0068:ee251e0c [ 1331.098170] CR2: 000000006b6b6b8b [ 1331.727971] ---[ end trace b5bb9f2066cef7f9 ]--- Cc: <stable@vger.kernel.org> Acked-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Tested-by: Ben Greear <greearb@candelatech.com> Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: Enable WoW only for AR9462Sujith Manoharan2013-06-031-4/+0
| | | | | | | | | | | | | | | | | | The only card with which WoW has been tested and verified is AR9462. Do not enable it for all cards since WoW is really quirky and needs to be tested properly with each chip. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: advertise support for active monitor interfacesFelix Fietkau2013-06-031-0/+2
| | | | | | | | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: check for Rx-STBC flag and pass it to ieee80211Oleksij Rempel2013-05-301-2/+8
| | | | | | | | | | | | | | | | | | | | | | This patch make use of STBC flag in DMA RX descriptor. Only devices after ar9280 can provide this information. If card support it we will set HAVE_STBC flag, to show clint programm thet STBC is supported but not received. Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: Remove MAC_DEBUGSujith Manoharan2013-05-221-3/+0
|/ | | | | | | | | | | | This option has not been enabled by default in any distribution, has never been enabled in OpenWrt and no developer has asked for this information in a bug report. Dumping pages of random values doesn't help debugging, remove this option (along with the vmalloc() abuse). Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: add support for the new rate control APIFelix Fietkau2013-04-231-1/+2
| | | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: change DFS logging to use ath_dbg()Zefir Kurtisi2013-04-221-1/+1
| | | | | | | | | | | | | The DFS pattern detector was initially planned to reside on a higher layer and used generic pr_*() logging functions. Being part of ath9k, use ath_dbg() instead and make DFS log ouput selectable via ATH_DBG_DFS (0x20000) at runtime. This patch does not contain functional modifications. Signed-off-by: Zefir Kurtisi <zefir.kurtisi@neratec.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: add support for DFS master modeZefir Kurtisi2013-04-081-0/+4
| | | | | | | | | | | | | | These are the remaining knobs in ath9k to support DFS: * mark AR9280 and AR9580 as DFS tested * synchronize DFS regulatory domain to reg notifyer * set required RX filter flags for radar detection * process radar PHY errors at DFS detector * notify DFS master on radar detection DFS support requires CONFIG_ATH9K_DFS_CERTIFIED to be set. Signed-off-by: Zefir Kurtisi <zefir.kurtisi@neratec.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: add interface combinations for DFS masterZefir Kurtisi2013-04-081-8/+24
| | | | | | Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Zefir Kurtisi <zefir.kurtisi@neratec.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: Only remove spectral scan relay file when it was createdSven Eckelmann2013-02-011-1/+1
| | | | | | | | The relay file depends on relayfs. Trying to close this file without having ATH9K_DEBUGFS (and therefore RELAY) activated causes build failures. Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: add debug parameters for spectral scanSimon Wunderlich2013-01-301-0/+7
| | | | | | | | Export the various parameters to userspace. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* Merge branch 'for-john' of ↵John W. Linville2013-01-221-6/+3
|\ | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
| * wireless: make the reg_notifier() voidLuis R. Rodriguez2013-01-141-6/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The reg_notifier()'s return value need not be checked as it is only supposed to do post regulatory work and that should never fail. Any behaviour to regulatory that needs to be considered before cfg80211 does work to a driver should be specified by using the already existing flags, the reg_notifier() just does post processing should it find it needs to. Also make lbs_reg_notifier static. Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com> [move lbs_reg_notifier to not break compile] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | ath9k: add spectral scan featureSimon Wunderlich2013-01-091-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adds the spectral scan feature for ath9k. AR92xx and AR93xx chips are supported for now. The spectral scan is triggered by configuring a mode through a debugfs control file. Samples can be gathered via another relay debugfs file. Essentially, to try it out: echo chanscan > /sys/kernel/debug/ieee80211/phy0/ath9k/spectral_scan_ctl iw dev wlan0 scan cat /sys/kernel/debug/ieee80211/phy0/ath9k/spectral_scan0 > samples echo disable > /sys/kernel/debug/ieee80211/phy0/ath9k/spectral_scan_ctl This feature is still experimental. The special "chanscan" mode is used to perform spectral scan while mac80211 is scanning for channels. To allow this, sw_scan_start/complete() ops have been added. The patch contains code snippets and information from Zefir Kurtisi and information provided by Adrian Chadd and Felix Fietkau. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k_hw: use the devres API for allocationsFelix Fietkau2013-01-071-0/+1
| | | | | | | | | | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org> Acked-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: use the devres API for allocations/mappingsFelix Fietkau2013-01-071-70/+30
|/ | | | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org> Acked-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: check pdata variable before dereferencing itGabor Juhos2012-12-111-1/+1
| | | | | | | | | | | | | | | Due to my recent commit (ath9k: allow to load EEPROM content via firmware API) smatch complains about that the 'pdata' variable in 'ath9k_hw_init' can be NULL and it is dereferenced before checking that. That is absolutely correct. Check the 'pdata' variable before using it to avoid a NULL pointer dereference. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: allow to load EEPROM content via firmware APIGabor Juhos2012-12-101-1/+59
| | | | | | | | | | | | | | | | The calibration data for devices w/o a separate EEPROM chip can be specified via the 'eeprom_data' field of 'ath9k_platform_data'. The 'eeprom_data' is usually filled from board specific setup functions. It is easy if the EEPROM data is mapped to the memory, but it can be complicated if it is stored elsewhere. The patch adds support for loading of the EEPROM data via the firmware API to avoid this limitation. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: Remove 'stations' debugfs fileSujith Manoharan2012-11-211-4/+0
| | | | | | | | | | | | | The 'stations' debugfs file has multiple issues. It doesn't scale to an arbitrary number of associated stations and allocating 64K is not elegant either. Now that changes have been made in mac80211 to support dynamic creation/deletion of driver-specific debugfs files on station addition/removal, remove this file and make use of the mac80211 hooks (which will be done in a sebsequent patch). Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k/ath9k_htc: Remove WME macrosSujith Manoharan2012-11-211-1/+1
| | | | | | | | Use the macros provided by mac80211 and remove redundant declarations inside the drivers. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: Advertize beacon_int_infra_matchMohammed Shafi Shajakhan2012-10-291-0/+1
| | | | | | | | | Currently ath9k need to have beacon interval matched between STA mode and beaconing mode. Advertize this through interface combinations. Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: Add a module parameter to enable diversitySujith Manoharan2012-09-241-0/+12
| | | | | Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: fill led_pin before drv_startRajkumar Manoharan2012-09-241-0/+1
| | | | | | | | | | | Ensure that led pin is filled and set to OFF before starting the driver. With recent changes, drv_start is being called even before led_init is being completed. This is causing led is always OFF on driver load when the interface is UP. This patch splits the led init and fills the led pin before register hw. Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: Set correct max streams for AR9565Sujith Manoharan2012-09-111-1/+1
| | | | | | | Also, set the correct chainmask. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: Cleanup the beacon taskletSujith Manoharan2012-07-171-1/+1
| | | | | | | | Remove unused variables, use a helper function to choose the slot and reset beaconing status at one place. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: make per-WMM-AC queue sizes configurable via debugfsFelix Fietkau2012-07-171-0/+1
| | | | | | | Prepare for using different queue size defaults for each AC. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: advertise supported WoW flags to upper layerMohammed Shafi Shajakhan2012-07-121-0/+18
| | | | | | | | | | | | | | | | currently the code supports WoW triggers due to *magic packet *user defined patterns *deauth and disassoc patterns *disconnect - beacon miss, last beacon received timeout, no ack for keeep alive frames. Cc: Senthil Balasubramanian <senthilb@qca.qualcomm.com> Cc: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Cc: vadivel@qca.qualcomm.com Signed-off-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com> Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: Handle ASPM properlySujith Manoharan2012-06-061-0/+3
| | | | | | | | | ASPM has to be disabled when BTCOEX is in use, do this properly by calling the bus-specific ASPM init routine after the BTCOEX scheme has been determined. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: Prune ath9k_init_deviceSujith Manoharan2012-06-061-8/+7
| | | | | | | | | Instead of cluttering ath9k_init_device() with 'ath_softc' specific initialization code, use ath9k_init_softc() to setup driver-specific work routines, timers etc. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: add possible wiphy interface combinationsFelix Fietkau2012-04-231-0/+21
| | | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: add DFS pattern detector instance to ath_softcZefir Kurtisi2012-04-111-0/+4
| | | | | Signed-off-by: Zefir Kurtisi <zefir.kurtisi@neratec.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: don't always advertise remain-on-channelJohannes Berg2012-04-101-0/+1
| | | | | | | | | | | | | | | | | | Not all devices are really capable of implementing remain-on-channel, even if it is implemented in SW, as they can't necessarily deal with channel changes while associated. Remove the WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL and add it only if either the driver has remain_on_channel implemented in the driver/device. Also add it to all drivers that advertise P2P right now since those definitely have to have it working. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Acked-by: Luciano Coelho <coelho@ti.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath: Add and use pr_fmt, convert printks to pr_<level>Joe Perches2012-04-101-7/+6
| | | | | | | | Use a more current logging style. Make sure all output is prefixed appropriately. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: recover ar9380 chips from rare stuck stateRajkumar Manoharan2012-04-091-0/+1
| | | | | | | | | | | | | | | | | | | | In the experiment with Azimuth ADEPT-n testbed where the APs transmit power was reduced to 25% and the signal strength was futher attenuated by 20dB and induced a path loss of ~7dB, the station was reporting beacon losses and the following issue were observed. * rx clear is stuck at low for more than 300ms * dcu chain and complete state is stuck at one of the hang signature This patch triggers the hang detection logic that recovers the chip from any of the above conditions. As the issue was originally reported in ChromeOs with AR9382 chips, this detection logic is enabled only for AR9380/2 chips. Cc: Paul Stewart <pstew@google.com> Reported-by: Gary Morain <gmorain@google.com> Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: reduce listen time periodRajkumar Manoharan2012-03-261-1/+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>
* ath9k: optimize register access functionsFelix Fietkau2012-03-151-3/+3
| | | | | | | | 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>
* ath9k_hw: remove ath9k_hw_getdefantennaFelix Fietkau2012-03-151-1/+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>
* ath9k: Remove aggregation flagsSujith Manoharan2012-03-151-8/+1
| | | | | | | | 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>
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-14 05:47:04 +0000