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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>
2014-03-25ath10k: 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>
2014-03-21ath10k: 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>
2014-03-21ath10k: separate result parameter in ath10k_bmi_execute()Kalle Valo
It's just cleaner to have separate argument for the parameter and result. Also fix returned error value if response length is invalid. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-13ath6kl: update Kconfig descriptionsKalle Valo
The help text were either out of date, too small or didn't exist at all. Also move cfg80211 dependency to ath6kl_core module as it has all the calls to cfg80211. Fixes checkpatch warning: WARNING: please write a paragraph that describes the config symbol fully Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-13ath6kl: remove unnecessary line continuationsKalle Valo
Fixes checkpatch warning: WARNING: Avoid unnecessary line continuations Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-13ath6kl: remove spaces before semicolonKalle Valo
Fixes checkpatch warning: CHECK: space prohibited before semicolon Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-13ath6kl: use braces on both arms of if statementKalle Valo
Fixes checkpatch warning: CHECK: braces {} should be used on all arms of this statement Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-13ath6kl: fix blank lines before and after bracesKalle Valo
Fixes checkpatch warnings: CHECK: Blank lines aren't necessary after an open brace '{' CHECK: Blank lines aren't necessary before a close brace '}' Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-13ath6kl: fix struct hif_scatter_req list handlingKalle Valo
Jason noticed that with Yocto GCC 4.8.1 ath6kl crashes with this iperf command: iperf -c $TARGET_IP -i 5 -t 50 -w 1M The crash was: Unable to handle kernel paging request at virtual address 1a480000 pgd = 80004000 [1a480000] *pgd=00000000 Internal error: Oops: 805 [#1] SMP ARM Modules linked in: ath6kl_sdio ath6kl_core [last unloaded: ath6kl_core] CPU: 0 PID: 1953 Comm: kworker/u4:0 Not tainted 3.10.9-1.0.0_alpha+dbf364b #1 Workqueue: ath6kl ath6kl_sdio_write_async_work [ath6kl_sdio] task: dcc9a680 ti: dc9ae000 task.ti: dc9ae000 PC is at v7_dma_clean_range+0x20/0x38 LR is at dma_cache_maint_page+0x50/0x54 pc : [<8001a6f8>] lr : [<800170fc>] psr: 20000093 sp : dc9afcf8 ip : 8001a748 fp : 00000004 r10: 00000000 r9 : 00000001 r8 : 00000000 r7 : 00000001 r6 : 00000000 r5 : 80cb7000 r4 : 03f9a480 r3 : 0000001f r2 : 00000020 r1 : 1a480000 r0 : 1a480000 Flags: nzCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel Control: 10c53c7d Table: 6cc5004a DAC: 00000015 Process kworker/u4:0 (pid: 1953, stack limit = 0xdc9ae238) Stack: (0xdc9afcf8 to 0xdc9b0000) fce0: 80c9b29c 00000000 fd00: 00000000 80017134 8001a748 dc302ac0 00000000 00000000 dc454a00 80c12ed8 fd20: dc115410 80017238 00000000 dc454a10 00000001 80017588 00000001 00000000 fd40: 00000000 dc302ac0 dc9afe38 dc9afe68 00000004 80c12ed8 00000000 dc454a00 fd60: 00000004 80436f88 00000000 00000000 00000600 0000ffff 0000000c 80c113c4 fd80: 80c9b29c 00000001 00000004 dc115470 60000013 dc302ac0 dc46e000 dc302800 fda0: dc9afe10 dc302b78 60000013 dc302ac0 dc46e000 00000035 dc46e5b0 80438c90 fdc0: dc9afe10 dc302800 dc302800 dc9afe68 dc9afe38 80424cb4 00000005 dc9afe10 fde0: dc9afe20 80424de8 dc9afe10 dc302800 dc46e910 80424e90 dc473c00 dc454f00 fe00: 000001b5 7f619d64 dcc7c830 00000000 00000000 dc9afe38 dc9afe68 00000000 fe20: 00000000 00000000 dc9afe28 dc9afe28 80424d80 00000000 00000035 9cac0034 fe40: 00000000 00000000 00000000 00000000 000001b5 00000000 00000000 00000000 fe60: dc9afe68 dc9afe10 3b9aca00 00000000 00000080 00000034 00000000 00000100 fe80: 00000000 00000000 dc9afe10 00000004 dc454a00 00000000 dc46e010 dc46e96c fea0: dc46e000 dc46e964 00200200 00100100 dc46e910 7f619ec0 00000600 80c0e770 fec0: dc15a900 dcc7c838 00000000 dc46e954 8042d434 dcc44680 dc46e954 dc004400 fee0: dc454500 00000000 00000000 dc9ae038 dc004400 8003c450 dcc44680 dc004414 ff00: dc46e954 dc454500 00000001 dcc44680 dc004414 dcc44698 dc9ae000 dc9ae030 ff20: 00000001 dc9ae000 dc004400 8003d158 8003d020 00000000 00000000 80c53941 ff40: dc9aff64 dcb71ea0 00000000 dcc44680 8003d020 00000000 00000000 00000000 ff60: 00000000 80042480 00000000 00000000 000000f8 dcc44680 00000000 00000000 ff80: dc9aff80 dc9aff80 00000000 00000000 dc9aff90 dc9aff90 dc9affac dcb71ea0 ffa0: 800423cc 00000000 00000000 8000e018 00000000 00000000 00000000 00000000 ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 ffe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000 [<8001a6f8>] (v7_dma_clean_range+0x20/0x38) from [<800170fc>] (dma_cache_maint_page+0x50/0x54) [<800170fc>] (dma_cache_maint_page+0x50/0x54) from [<80017134>] (__dma_page_cpu_to_dev+0x34/0x9c) [<80017134>] (__dma_page_cpu_to_dev+0x34/0x9c) from [<80017238>] (arm_dma_map_page+0x64/0x68) [<80017238>] (arm_dma_map_page+0x64/0x68) from [<80017588>] (arm_dma_map_sg+0x7c/0xf4) [<80017588>] (arm_dma_map_sg+0x7c/0xf4) from [<80436f88>] (sdhci_send_command+0x894/0xe00) [<80436f88>] (sdhci_send_command+0x894/0xe00) from [<80438c90>] (sdhci_request+0xc0/0x1ec) [<80438c90>] (sdhci_request+0xc0/0x1ec) from [<80424cb4>] (mmc_start_request+0xb8/0xd4) [<80424cb4>] (mmc_start_request+0xb8/0xd4) from [<80424de8>] (__mmc_start_req+0x60/0x84) [<80424de8>] (__mmc_start_req+0x60/0x84) from [<80424e90>] (mmc_wait_for_req+0x10/0x20) [<80424e90>] (mmc_wait_for_req+0x10/0x20) from [<7f619d64>] (ath6kl_sdio_scat_rw.isra.10+0x1dc/0x240 [ath6kl_sdio]) [<7f619d64>] (ath6kl_sdio_scat_rw.isra.10+0x1dc/0x240 [ath6kl_sdio]) from [<7f619ec0>] (ath6kl_sdio_write_async_work+0x5c/0x104 [ath6kl_sdio]) [<7f619ec0>] (ath6kl_sdio_write_async_work+0x5c/0x104 [ath6kl_sdio]) from [<8003c450>] (process_one_work+0x10c/0x370) [<8003c450>] (process_one_work+0x10c/0x370) from [<8003d158>] (worker_thread+0x138/0x3fc) [<8003d158>] (worker_thread+0x138/0x3fc) from [<80042480>] (kthread+0xb4/0xb8) [<80042480>] (kthread+0xb4/0xb8) from [<8000e018>] (ret_from_fork+0x14/0x3c) Code: e1a02312 e2423001 e1c00003 f57ff04f (ee070f3a) ---[ end trace 0c038f0b8e0b67a3 ]--- Kernel panic - not syncing: Fatal exception Jason's analysis: "The GCC 4.8.1 compiler will not do the for-loop till scat_entries, instead, it only run one round loop. This may be caused by that the GCC 4.8.1 thought that the scat_list only have one item and then no need to do full iteration, but this is simply wrong by looking at the assebly code. This will cause the sg buffer not get set when scat_entries > 1 and thus lead to kernel panic. Note: This issue not observed with GCC 4.7.2, only found on the GCC 4.8.1)" Fix this by using the normal [0] style for defining unknown number of list entries following the struct. This also fixes corruption with scat_q_depth, which was mistankely added to the end of struct and overwritten if there were more than item in the scat list. Reported-by: Jason Liu <r64343@freescale.com> Tested-by: Jason Liu <r64343@freescale.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-13ath10k: add recalc RTS/CTS protection methodMarek Kwaczynski
Add recalculation of RTS/CTS protection when one or more legacy stations are connected to ath10k. In this case enable RTS/CTS protection and set sw retry profile are needed in the FW. Without this change legacy station is starved and has very low throughput. Signed-off-by: Marek Kwaczynski <marek.kwaczynski@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-11ath10k: allow the supported rate change by reassociate peerChun-Yeow Yeoh
IBSS mode requires the changing of supported rate. Do this by reassociate the peer. The investigation shows that if move from legacy to HT, the rate control won't work after changing the supported rate. But once changing the supported rate to HT, user can assign the TxRate in HT mode. Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@gmail.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-07ath10k: do not overwrite max_antenna_gainMarek Puzyniak
Seems like we have an old bug, where we incidently overwrites the max_antenna_gain we pass to firmware, with zero value. End of all we are artifically reducing the output power. This patch removes the excessive assignment on max_antenna_gain, which is being provided by regulatory domain, and consequently improves the tx power. Signed-off-by: Marek Puzyniak <marek.puzyniak@tieto.com> Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-07ath10k: support msdu chainingBen Greear
Consolidate the list of msdu skbs into the msdu-head skb, delete the rest of the skbs, pass the msdu-head skb on up the stack as normal. Tested with high-speed TCP and UDP traffic on modified firmware that supports raw-rx. Signed-off-by: Ben Greear <greearb@candelatech.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-03ath10k: add vdev-id, return code to error codesBen Greear
When using multiple vdevs (stations, aps, etc), it is nice to be able to associate log messages with specific interfaces. So, add vdev-id to most logging messages. Add return code as well, where it was missing. kvalo: unify some of the messages to follow the same style Signed-off-by: Ben Greear <greearb@candelatech.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-02-28ath10k: minimize coherent dma accessesMichal Kazior
It doesn't make much sense to calculate the ring size fill count because it already is memoized in a separate variable. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-02-28ath10k: remove pci completion listMichal Kazior
One of the premises was to guarantee serialized completion handling for upper layers (HTC/WMI/HTT). Since quite some time now it is no longer necessary. The other premise was to batch up tx/rx completions to take advantage of hot caches. However frame tx/rx completion indications come in on a single pipe already so they are already batched up. More meaningful batching is done in HTT itself. This means PCI completion is no longer necessary to keep around. It just wastes memory, cycles and SLOC. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-02-28ath10k: reduce htt tx/rx spinlock overheadMichal Kazior
It is inefficient to grab irqsave spinlocks for skb lists for each queue/dequeue action. Using rx_ring.lock and tx_lock allows to use less heavy bh spinlock functions and moving locking upwards allows to toggle spinlocks less often. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-02-28ath10k: batch htt tx/rx completionsMichal Kazior
HTT Rx endpoint processes both frame rx indications and frame tx completion indications. Those completions typically come in batches and may be mixed so it makes sense to defer processing hoping to get a bunch of them and take advantage of hot caches. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-02-28ath10k: bypass htc for htt tx pathMichal Kazior
Going through full htc tx path for htt tx is a waste of resources. By skipping it it's possible to easily submit scatter-gather to the pci hif for reduced host cpu load and improved performance. The new approach uses dma pool to store the following metadata for each tx request: * msdu fragment list * htc header * htt tx command The htt tx command contains a msdu prefetch. Instead of copying it original mapped msdu address is used to submit a second scatter-gather item to hif to make a complete htt tx command. The htt tx command itself hands over dma mapped pointers to msdus and completion of the command itself doesn't mean the frame has been sent and can be unmapped/freed. This is why htc tx completion is skipped for htt tx as all tx related resources are freed upon htt tx completion indication event (which also implicitly means htt tx command itself was completed). Since now each htt tx request effectively consists of 2 copy engine items CE_HTT_H2T_MSG_SRC_NENTRIES is updated to allow maximum of TARGET_10X_NUM_MSDU_DESC msdus being queued. This keeps the tx path resource management simple. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
generated by cgit (git 2.34.1) at 2025-04-19 04:29:14 +0000