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path: root/drivers/net/wireless/ath
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2014-04-22ath9k: add a recv budgetTim Harvey
Implement a recv budget so that in cases of high traffic we still allow other taskets to get processed. Without this, we can encounter a host of issues during high wireless traffic reception depending on system load including rcu stall's detected (ARM), soft lockups, failure to service critical tasks such as watchdog resets, and triggering of the tx stuck tasklet. The same thing was proposed previously by Ben: http://www.spinics.net/lists/linux-wireless/msg112891.html The only difference here is that I make sure only processed packets are counted in the budget by checking at the end of the rx loop. Signed-off-by: Tim Harvey <tharvey@gateworks.com> Acked-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-04-22ath9k: fix possible hang on flushTim Harvey
If a flush is requested, make sure to clear the descriptor once we've processed it. This resolves a hang that will occur if all RX descriptors are full when a flush is requested. Signed-off-by: Tim Harvey <tharvey@gateworks.com> Acked-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-04-11ath10k: improve htc tx credit debugging printsMichal Kazior
This way it's easier to track and debug htc tx credit issues. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-04-11ath10k: refactor radar detection codeMichal Kazior
If 20MHz CAC completed successfully then subsequent CAC with wider bandwidth (40Mhz, 80Mhz) with identical control frequency did not start monitor vdev making it impossible to detect any radar pulses during intended CAC. It also was incorrect to assume ath10k_config() will be called after CAC is finished. Theoretically for non-HT channels nothing changes between CAC and start_ap() (albeit in practice this can be different). The incorrect assumption led to CAC not being stopped on non-HT chandefs leading to all Rx being drooped making it impossible for clients to associate. While at it clean up the code a bit. kvalo: separate WARN_ON() from the if statement Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-04-11ath10k: reorder functionsMichal Kazior
This is done to avoid forward declarations with upcomming patches. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-04-09ath9k: fix a scheduling while atomic bug in CSA handlingFelix Fietkau
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>
2014-04-09ath9k_hw: reduce ANI firstep range for older chipsFelix Fietkau
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>
2014-04-09ath9k: Enable DFS only when ATH9K_DFS_CERTIFIEDJanusz Dziedzic
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>
2014-04-09ath9k_htc: set IEEE80211_TX_STAT_AMPDU for acked aggregated framesChun-Yeow Yeoh
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>
2014-04-09mac80211: add vif to flush callEmmanuel Grumbach
This will allow the low level driver to make decision based on the vif such as queues etc... Since the vif might be NULL, we can't add it to the tracing functions. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> [fix staging rtl8821ae driver] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-04-08ath10k: refactor monitor codeMichal Kazior
It was possible to create/delete/start/stop monitor vdev from a few places that were not exclusively protected against each other. This resulted in monitor vdev being stopped/removed by one call origin while another one was expecting it to continue running. For example if CAC was started and interface's promiscuous mode was toggled monitor vdev was removed from the driver meaning no radar would be detected. In additional a warning would be printed upon CAC completion complaining it tried to stop non-running monitor vdev. The patch simplifies monitor code by removing IEEE80211_HW_WANT_MONITOR_VIF (which wasn't really ever needed) and improves state tracking. It also unifies prints. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-04-08ath10k: cleanup debug messages in ath10k_wmi_event_host_swba()Kalle Valo
They were just too superfluous and made it harder to read logs. Change them to follow the normal style used in ath10k. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-31Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
2014-03-28ath10k: add extra pdev stats on 10.1 firmwareChun-Yeow Yeoh
As pointed out by Michal Kazior, add extra pdev stats for 10.1 firmware. Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@gmail.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-28ath10k: add the Rx rate in FW statsBen Greear
FW stats does provide the Rx rate information. Add this. Tested with firmware 10x firmware. Increase buffer size so more peers can be shown. Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@gmail.com> Signed-off-by: Ben Greear <greearb@candelatech.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-28ath10k: fix getting stats from firmwareBen Greear
Tested on 10.x firmware, and others report it at least makes older firmware no more broken than it already was. Signed-off-by: Ben Greear <greearb@candelatech.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-28ath10k: update wal_dbg_tx_stats structure with missing parameter.Bartosz Markowski
The filed has been missing (missmatched with FW ABI) since 999.999.0.629 firmware release. It's very imporatant to keep these structs up to date with FW, due to the arithmetic we use while read the fw_stats. Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-28ath10k: deinit copy engine before resettingMichal Kazior
Since copy engine allocation has been revised the ath10k_pci_ce_deinit() now simply zeroes copy engine registers. It's probably a good idea to do that before reseting for a more graceful device reset. Before ath10k_pci_ce_deinit() freed copy engine ringbuffer memory so it was required to call it after resetting. Otherwise it was possible for device to access unmapped/freed copy engine ringbuffer memory. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-28ath10k: split ce initialization and allocationMichal Kazior
Definitions by which copy engine structure are allocated do not change so it doesn't make much sense to re-create those structures each time device is booted (e.g. due to firmware recovery). This should decrease chance of memory allocation failures. While at it remove per_transfer_context pointer indirection. The array has been trailing the copy engine ringbuffer structure anyway. This also saves pointer size worth of bytes for each copy engine ringbuffer. Reported-By: Avery Pennarun <apenwarr@gmail.com> Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-28ath10k: convert pci_alloc_consistent() to dma_alloc_coherent()Michal Kazior
This allows to use GFP_KERNEL allocation. This should decrease chance of allocation failure, e.g. during firmware recovery. Reported-By: Avery Pennarun <apenwarr@gmail.com> Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-28ath10k: print chip id during bootKalle Valo
This makes it easier to debug what kind of board is used. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-28ath10k: add module parameter values to the pci info printKalle Valo
Hopefully this makes it easier to debug problems in the future. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-28ath10k: improve pci debug messagesKalle Valo
To make it easier to debug pci problems improve the log messages in pci.c. Also change some debug messages to warning messages to more easily catch problems. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-28ath10k: delete ar_pci->fw_indicator_addressKalle Valo
It always contains the same constant, no need to have a separate variable for it. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-28ath10k: advertise only firmware API 2 filesKalle Valo
We do not really support older firmware API 1 anymore, so better remove MODULE_FIRMWARE() declarations for them and only list for API 2 files. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-28ath10k: fix name of target_ps module parameterKalle Valo
The parameter name was ath10k_target_ps, but actually it should be just target_ps. Module parameter names should not use the ath10k_ prefix. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-28ath10k: add module parameter to disable cold resetKalle Valo
As cold reset is not reliable with CUS223 boards, make it possible to disable cold reset entirely and only use warm reset. This makes it also easier to debug warm reset problems. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-28ath10k: cleanup ath10k_pci_wait_for_target_init()Kalle Valo
ath10k_pci_wait_for_target_init() did really follow the style used elsewhere in ath10k. Use ath10k_pci_read/write() wrappers, simplify the while loop and improve warning messages. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-28ath10k: add otp and firmware boot error messagesBen Greear
If OTP or firmware fails to load properly, print out some extra info in the kernel logs. Signed-off-by: Ben Greear <greearb@candelatech.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-28ath10k: better firmware loading error messagesBen Greear
Let user know the name of the board file if it is not found, and make it easier to determine the firmware api being used. Signed-off-by: Ben Greear <greearb@candelatech.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-28ath10k: unify warning messages in mac.cKalle Valo
Currently there are different styles used for warning messages, unify them to look similar. The style basically is: 1) start with a verb (if possible) 2) lower case letters 3) use plain english as much as possible Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-27carl9170: Remove casts of pointer to same typeJoe Perches
Casting a pointer to a pointer of the same type is pointless, so remove these unnecessary casts. Done via coccinelle script: $ cat typecast_2.cocci @@ type T; T *foo; @@ - (T *)foo + foo Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-25Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
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>
2014-03-25ath10k: fix rssi and rate reportingJanusz Dziedzic
RSSI and RATES fields are valid only when START_VALID bit is set. So, in current implementation we have to remember/caclulate them when START_VALID and report the same when only END_VALID is set. Currently during heavy traffic we could have: - 10 packets with START_VALID - correct RSSI and RATES - 10 packets with END_VALID - 10 packets with START_VALID - correct RSSI and RATES - 10 packets with END_VALID ... Next using monitor interface we will see: - 10 packets with correct rssi/rates - 10 packets with rssi=-95/rate=6Mbps Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-25ath10k: introduce rx_status htt templateJanusz Dziedzic
Introduce rx_status htt template instead of stack version, as a preparation for fix rssi and rates reporting. Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-25ath10k: finally kill htt_rx_infoJanusz Dziedzic
Struct htt_rx_info is not needed anymore while we will use ieee80211_rx_status structure as a template. Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-25ath10k: improve way we play with attention flagsJanusz Dziedzic
Remove almost the same code, and do only once __le32_to_cpu() conversion. Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-25ath10k: return error when ath10k_htt_rx_amsdu_pop() failJanusz Dziedzic
Return error when rx_amsdu_pop() will fail. Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-25ath10k: kill not needed fields from htt_rx_infoJanusz Dziedzic
Kill rates, tsf, fcs_err, mic_err, amsdu_more, encrypt_type, signal from htt_rx_info and setup this directly in ieee80211_rx_status. Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-25ath10k: setup rx channel per ppduJanusz Dziedzic
Setup band and frequency in ieee80211_rx_status only once - for ppdu. Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-25ath10k: introduce ieee80211_rx_status to htt_rx_infoJanusz Dziedzic
Will be used as a template, and final storage for rx_status. Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-25ath10k: rename process_rx_rates to ath10k_htt_rx_h_ratesJanusz Dziedzic
No functional changes. Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-25ath10k: move rx related functions to htt_rx.cJanusz Dziedzic
No functional changes. Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-24ath10k: fix the peer mac address in getting statsChun-Yeow Yeoh
Using the macro to convert the MAC address from WMI word format to char array has lead to the wrong peer mac address printed out while retrieving the peer stats from FW. Fix this. Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@gmail.com> Reviewed-By: Michał Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-24ath10k: update regulatory domain settings for 10.x firmwareMarek Puzyniak
Regulatory domain settings for firmware 10.x has more options than main firmware, so handle regulatory domain setup separately for both supported firmwares. Fill in additional dfs domain parameter according to current regulatory. This patch does not solve any known bug. Not handled parameter for firmware 10.x was found during code review. Signed-off-by: Marek Puzyniak <marek.puzyniak@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-24ath10k: add soft/hard firmware crash option to simulate_fw_crashMarek Puzyniak
Command WMI_FORCE_FW_HANG_CMDID is not supported in firmware 10.1. In order to have firmware crash simulation functionality also in firmware 10.1 driver can force firmware crash by performing not allowed operation. Driver can deliberately crash firmware when setting vdev param for vdev id out of range. This patch introduces two keywords to simulate_fw_crash: 'soft' which will cause firmware crash that is recoverable by warm firmware reset but supported only in main firmware. 'hard' which will cause firmware crash recoverable by cold firmware reset, this option works for both firmwares. Commands to trigger firmware soft/hard crash: echo 'soft' > /sys/kernel/debug/ieee80211/phyX/ath10k/simulate_fw_crash echo 'hard' > /sys/kernel/debug/ieee80211/phyX/ath10k/simulate_fw_crash kvalo: remove '\n' before checking the command and simplify how buf is null terminated Signed-off-by: Marek Puzyniak <marek.puzyniak@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-21Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
2014-03-21ath10k: Fill per-ppdu info in rx_info only onceJanusz Dziedzic
Don't fill this for each msdu, while this is the same. Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-21ath10k: add ath10k_htt_rx_amsdu_allowed functionJanusz Dziedzic
Introduce ath10k_htt_rx_amsdu_allowed() function, that group code for checking if skip amsdu packets. Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-21ath10k: check otp.bin resultKalle Valo
When we execute otp.bin in the target check that the result it returns doesn't contain an error. This is to make sure that we don't accidentally use invalid calibration data. While at it, remove the useless label in the function and add few debug messages. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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