summaryrefslogtreecommitdiff
path: root/drivers/net/wireless/ath/ath11k/dp_rx.c
AgeCommit message (Collapse)AuthorFilesLines
2020-05-11ath11k: remove stale monitor status descriptorMiles Hu1-4/+7
The driver is not handling monitor status descriptor whenever the done bit of status descriptor is not set by hardware. This leave a stale entry in monitor status ring and flooding warning message. Fix that by removing the descriptor and move forward to next one in monitor status ring. Co-developed-by: Rajkumar Manoharan <rmanohar@codeaurora.org> Signed-off-by: Rajkumar Manoharan <rmanohar@codeaurora.org> Signed-off-by: Miles Hu <milehu@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/1588642063-6950-1-git-send-email-rmanohar@codeaurora.org
2020-05-06ath11k: fix kernel panic by freeing the msdu received with invalid lengthTamizh Chelvam1-0/+18
In certain scenario host receives the packets with invalid length which causes below kernel panic. Free up those msdus to avoid this kernel panic. 2270.028121: <6> task: ffffffc0008306d0 ti: ffffffc0008306d0 task.ti: ffffffc0008306d0 2270.035247: <2> PC is at skb_panic+0x40/0x44 2270.042784: <2> LR is at skb_panic+0x40/0x44 2270.521775: <2> [<ffffffc0004a06e0>] skb_panic+0x40/0x44 2270.524039: <2> [<ffffffc0004a1278>] skb_put+0x54/0x5c 2270.529264: <2> [<ffffffbffcc373a8>] ath11k_dp_process_rx_err+0x320/0x5b0 [ath11k] 2270.533860: <2> [<ffffffbffcc30b68>] ath11k_dp_service_srng+0x80/0x268 [ath11k] 2270.541063: <2> [<ffffffbffcc1d554>] ath11k_hal_rx_reo_ent_buf_paddr_get+0x200/0xb64 [ath11k] 2270.547917: <2> [<ffffffc0004b1f74>] net_rx_action+0xf8/0x274 2270.556247: <2> [<ffffffc000099df4>] __do_softirq+0x128/0x228 2270.561625: <2> [<ffffffc00009a130>] irq_exit+0x84/0xcc 2270.567008: <2> [<ffffffc0000cfb28>] __handle_domain_irq+0x8c/0xb0 2270.571695: <2> [<ffffffc000082484>] gic_handle_irq+0x6c/0xbc Signed-off-by: Tamizh Chelvam <tamizhr@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/1588611568-20791-1-git-send-email-tamizhr@codeaurora.org
2020-05-05ath11k: use true,false for bool variablesJason Yan1-2/+2
Fix the following coccicheck warning: drivers/net/wireless/ath/ath11k/dp_rx.c:2964:1-39: WARNING: Assignment of 0/1 to bool variable drivers/net/wireless/ath/ath11k/dp_rx.c:2965:1-38: WARNING: Assignment of 0/1 to bool variable Signed-off-by: Jason Yan <yanaijie@huawei.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200504113336.41249-1-yanaijie@huawei.com
2020-04-28ath11k: use GFP_ATOMIC under spin lockWei Yongjun1-1/+1
A spin lock is taken here so we should use GFP_ATOMIC. Fixes: d5c65159f289 ("ath11k: driver for Qualcomm IEEE 802.11ax devices") Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200427092417.56236-1-weiyongjun1@huawei.com
2020-04-27ath11k: fix reo flush sendKarthikeyan Periyasamy1-1/+5
we are sending the reo flush command for the deleted peer tid after the ageout period reaches 1 second. This handling causes reo ring get full when more than 128 clients are disconnected continuously. so added the count for flush list and reo flush command is triggered after the list count reaches the threshold value, it is configured as 64 (half of the reo ring). This will avoid the situation where reo ring get full. Signed-off-by: Karthikeyan Periyasamy <periyasa@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/1587552378-4884-1-git-send-email-periyasa@codeaurora.org
2020-04-22ath11k: remove conversion to bool in ath11k_dp_rxdesc_mpdu_valid()Jason Yan1-1/+1
The '==' expression itself is bool, no need to convert it to bool again. This fixes the following coccicheck warning: drivers/net/wireless/ath/ath11k/dp_rx.c:255:46-51: WARNING: conversion to bool not needed here Signed-off-by: Jason Yan <yanaijie@huawei.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200420123718.3384-1-yanaijie@huawei.com
2020-04-14ath11k: rx path optimizationsManikanta Pubbisetty1-7/+7
During RX, accessing the reo dest ring descriptor directly is consuming a lot of CPU cycles. Accessing the descriptor after copying it locally has improved CPU usage by around ~10-15% while measuring throughput in RX DBTC test cases(all radios are involved in the throughput measurement). HW tested: IPQ8074 Signed-off-by: Manikanta Pubbisetty <mpubbise@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/1586421797-885-1-git-send-email-mpubbise@codeaurora.org
2020-04-06ath11k: add pktlog checksum in trace events to support pktlogMaharaja Kennadyrajan1-1/+2
Pktlog data are different among the chipset & chipset versions. As part of enhancing the user space script to decode the pktlog trace events generated, it is desirable to know which chipset or which chipset version has provided the events and thereby decode the pktlogs appropriately. Pktlog checksum helps to determine the chipset variant which is given by the firmware in the struct wmi_ready_event. Pktlog checksums are computed during the firmware build. So, adding that pktlog checksum in the pklog trace events. Signed-off-by: Maharaja Kennadyrajan <mkenna@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/1585234155-30574-1-git-send-email-mkenna@codeaurora.org
2020-03-18ath11k: Perform per-msdu rx processingSriram R1-293/+220
As Hash based reo destination selection is configured, the decapped packets reach different reo destintion rings based on the destintaion ring selected for the computed hash (based on the 5-tuple {ip src/ip dst/src port/dst port/protocol}) by hw and as configured by driver. Hence the current implementation of amsdu list based processing after all the subframes of amsdu are received (since all msdu's for a pdev are received in same reo dest ring), is not applicable here and hence is replaced with per msdu based handling as these subframes can be received in different reo dest rings. Also, as some of the rx descriptor fields might be valid only for the first msdu (for ex. received 80211 header, encryption type, etc), it might not be useful now as we cannot sync between different subframes received in different rings. Hence do not rely on those fields and replace them with fieds valid only on per msdu descriptors. Also cache other details such as encryption type for a peer so that it can be reused when a packet is received from it. Co-developed-by: Tamizh Chelvam Raja <tamizhr@codeaurora.org> Signed-off-by: Tamizh Chelvam Raja <tamizhr@codeaurora.org> Signed-off-by: Sriram R <srirrama@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2020-03-18ath11k: fill channel info from rx channelVenkateswara Naralasetty1-3/+7
Fill the channel information from rx channel for the packet which has invalid channel info from meta data. Signed-off-by: Venkateswara Naralasetty <vnaralas@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2020-03-18ath11k: Supporting RX ring backpressure HTT event and stats handlingSriram R1-0/+26
The Firmware sends HTT event to host whenever there is a backpressure on RX rings, Handling such event and dumping info on the console under the "ATH11K_DBG_DP_HTT" debug level. Fetching RX ring backpressure histogram from FW via htt_stats debugfs. #echo "24" > /sys/kernel/debug/ath11k/ipq8074/macX/htt_stats_type #cat /sys/kernel/debug/ath11k/ipq8074/macX/htt_stats Signed-off-by: Vikas Patel <vikpatel@codeaurora.org> Signed-off-by: Sriram R <srirrama@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2020-03-17ath11k: enable PN offloadManikanta Pubbisetty1-9/+106
Enabling PN checking in the hardware; hardware checks the PN of the received packets and reports the errors to the host for further handling; default action is to drop such packets. TSC (TKIP sequence counter) validation is also offloaded. Hardware validates PN/TSC only for unicast packets; for group addressed packets, PN validation is done in mac80211. PN errors are reported to the driver via WBM RX release ring and can be dumped by using the following command. "cat /sys/kernel/debug/ath11k/soc_rx_stats | grep -i pn" Sample Output: PN check fail: 210 Signed-off-by: Manikanta Pubbisetty <mpubbise@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2020-03-17ath11k: handle RX fragmentsManikanta Pubbisetty1-88/+667
IPQ8074 HW has support to verify the PN of the received frames. For all frames except for fragmented ones, HW checks the PN and delivers them to the driver. For fragmented frames, driver is required to do a little more; it has to reassemble the fragments and then reinject them to the HW for verifying the PN. Currently, to keep the logic simple, PN verifcation is disabled in HW and is handled in mac80211 for all the frames (fragmented and unfragmented). On the contrary, offloading PN Validation to the HW brings important benefits. It reduces CPU cycles spent on the host CPU for verifying the same; helps in enabling features which improve performance like mac80211 fast RX path, enabling multiple REO rings for parallel RX processing, 802.11 decapsulation offloading. All these features are dependent on PN offload which in turn is dependent on handling of the received fragments in the driver. When TKIP security is used, additional handling is required while processing the fragments; since MIC is computed on an MSDU in TKIP, only the last fragment has the MIC info. In this case, driver has to compute the MIC after reassembly and compare it against the MIC present in the frame. For this, MICHAEL_MIC kernel crypto library APIs are used and the dependencies are appropriately set. Signed-off-by: Manikanta Pubbisetty <mpubbise@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2020-03-11ath11k: config reorder queue for all tids during peer setupGovindaraj Saminathan1-2/+2
Currently rx tid setup is happening for TID 0 and TID 16 during peer setup. And if other TID packets received for the peer it will be redirected to rx error ring and not through reo ring. And this rx tid configuration cannot be done in the rx error ring path since it is a atomic context. So moving the rx tid setup for all tids during the peer setup. This is required to enable PN offload functionality to route all packets through reo ring. Co-developed-by: Tamizh Chelvam <tamizhr@codeaurora.org> Signed-off-by: Tamizh Chelvam <tamizhr@codeaurora.org> Signed-off-by: Govindaraj Saminathan <gsamin@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2020-02-11ath11k: fix parsing PPDU_CTRL type in pktlogAnilkumar Kolli1-10/+2
PPDU_CTRL type is missing in current pktlog dumps. PPDU_CTRL is sent on CE5 with len 2560 bytes, current driver ignores the payload len greter than 2048. PPDU_CTRL of 2560 bytes is sent in two fragments of len 2028 and 532 bytes, but firmware reports pkt header has length as 2560 for both of the fragments. Signed-off-by: Anilkumar Kolli <akolli@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2020-02-11ath11k: add HE rate accounting to driverJohn Crispin1-3/+45
Parse and store the out-of-band rates reported by the FW. Signed-off-by: John Crispin <john@phrozen.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2020-02-11ath11k: drop tx_info from ath11k_staJohn Crispin1-49/+2
We will start using ieee80211_tx_status_ext() so we do not need to track tx rates inside a struct ieee80211_tx_info. It is currently not possible to populate that struct with HE rate info anyhow. Signed-off-by: John Crispin <john@phrozen.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2020-01-26ath11k: make sure to also report the RX bandwidth inside radiotapJohn Crispin1-1/+2
Add IEEE80211_RADIOTAP_HE_DATA1_BW_RU_ALLOC_KNOWN to the list of known fields. Not doing so will result in wireshark not calculating the bitrate correctly. Signed-off-by: John Crispin <john@phrozen.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-12-18ath11k: remove an unneeded NULL checkDan Carpenter1-2/+2
The list iterator is always non-NULL so it doesn't need to be checked. I also removed the unnecessary initializer because the list iterator is always initialized. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-11-29ath11k: Setup REO destination ring before sending wmi_init commandVasanthakumar Thiagarajan1-9/+40
Firmware expects all the required REO destination rings setup while processing wmi_init command. Not doing this causes connected stations getting disconnected and not able to connect back. Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-11-29ath11k: Skip update peer stats for management packetsVenkateswara Naralasetty1-13/+20
Currently HTT_PPDU_STATS_TAG_USR_COMPLTN_ACK_BA_STATUS tag of PPDU stats doesn't have valid success bytes info of management frames. So skip update peer stats for management packets. Signed-off-by: Venkateswara Naralasetty <vnaralas@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-11-29ath11k: update tx duration in station infoVenkateswara Naralasetty1-1/+1
Update tx duration in station info form PPDU stats so that users can dump tx duration of the station. Signed-off-by: Venkateswara Naralasetty <vnaralas@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-11-29ath11k: fix memory leak in monitor modeMiles Hu1-2/+9
remove tail check to avoid last amsdu leak. recycle skb in ppdu id wrap around case Signed-off-by: Miles Hu <milehu@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-11-29ath11k: update bawindow size in delba processVenkateswara Naralasetty1-9/+19
Currenly in delba process calling ath11k_peer_rx_tid_delete() updates reo with desc invalid and add tid queue to the flush list. If station send data traffic without addba req and before tid flush, hw gives those packets as invalid desc reo error. Since we are dropping these invalid desc packets results in traffic stall. This patch fix this issue by updating the reo queue with bawindow size 1 instead of tid removal in delba process. Signed-off-by: Venkateswara Naralasetty <vnaralas@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-11-29ath11k: avoid use_after_free in ath11k_dp_rx_msdu_coalesce APIKarthikeyan Periyasamy1-5/+5
Accessing already stored first msdu data after the skb expand trigger use_after_free, since first msdu got deleted. so do the descriptor copy operation before the skb expand operation. Signed-off-by: Karthikeyan Periyasamy <periyasa@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-11-29ath11k: pktlog: fix sending/using the pdev idAnilkumar Kolli1-3/+5
Fixes sending the pdev id(0,1,2 for mac0, mac1, mac2) to FW in wmi cmd pktlog enable/disable. Signed-off-by: Anilkumar Kolli <akolli@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-11-29ath11k: Fix skb_panic observed during msdu coalescingSriram R1-8/+14
skb_panic is hit during msdu coalescing whenever enough tailroom is not allocated based on the remaining msdu length which is spread across in different rx buffers. Compute the extra length for resizing the skb based on the total msdu length and the msdu length of the first buffer. Signed-off-by: Sriram R <srirrama@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-11-29ath11k: optimize RX path latencyJohn Crispin1-21/+26
This patch drops ath11k_hal_rx_parse_dst_ring_desc(). This function was creating a huge amount of load, which lead to a signifcant latency delay when processing data in the RX path. Pegging the processing on a specific core and running perf --top we get the following output when running HE80 at a fixed bandwidth of 1gbit. with patch 19.19% [ath11k] [k] ath11k_dp_process_rx 5.02% [ath11k] [k] ath11k_dp_rx_tid_del_func 4.39% [kernel] [k] v7_dma_inv_range 4.15% [kernel] [k] __slab_alloc.constprop.1 4.03% [kernel] [k] dev_gro_receive 3.86% [kernel] [k] tcp_gro_receive 3.07% [ip_tables] [k] ipt_do_table 2.96% [kernel] [k] dma_cache_maint_page without patch 21.64% [ath11k] [k] ath11k_hal_rx_parse_dst_ring_desc 10.80% [ath11k] [k] ath11k_dp_process_rx 3.77% [kernel] [k] v7_dma_inv_range 3.48% [kernel] [k] dev_gro_receive 3.32% [ath11k] [k] ath11k_dp_rx_tid_del_func 3.17% [mac80211] [k] ieee80211_rx_napi 2.70% [kernel] [k] dma_cache_maint_page 2.65% [mac80211] [k] ieee80211_sta_ps_transition When removing the the bandwidth limit and rerunning the test we see an overall throughput improvement of 3-400mbit when running 4x4 HE80. Signed-off-by: Shashidhar Lakkavalli <slakkavalli@datto.com> Signed-off-by: John Crispin <john@phrozen.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-11-29ath11k: update tcl cmd descriptor parameters for STA modeAnilkumar Kolli1-1/+1
It is observed that ath11k STA mode UL throughput is low. This is due to packets delivered to FW from TCL instead of TQM. TCL AST search fail causes packet delivered to FW, fix this by properly configuring the TCL address search type and ast_hash. STA UL throughput is improved 10times with 11AC AP. Signed-off-by: Anilkumar Kolli <akolli@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-11-27ath11k: Remove dead code while handling amsdu packetsTamizh chelvam1-6/+0
Remove unexecuted code while handling amsdu packets. The same logic is done before calling ath11k_dp_rx_msdu_coalesce Signed-off-by: Tamizh chelvam <tamizhr@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-11-27ath11k: fix missed bw conversion in tx completionTamizh chelvam1-26/+4
TX rate stats for the retried packets for a station comes through tx completion events. Assigning hw reported bandwidth information directly to station's txrate bandwidth will cause below warning. Fix this warning by converting the hw reported bandwidth to mac80211 base bandwidth. [ 134.758190] PC is at cfg80211_calculate_bitrate+0x1bc/0x214 [cfg80211] [ 134.765730] LR is at cfg80211_calculate_bitrate+0x1bc/0x214 [cfg80211] [ 134.875014] [<ffffffbffca8d708>] cfg80211_calculate_bitrate+0x1bc/0x214 [cfg80211] [ 134.877192] [<ffffffbffcaa9704>] nl80211_put_sta_rate+0x54/0xf24 [cfg80211] [ 134.884829] [<ffffffbffcaa9d48>] nl80211_put_sta_rate+0x698/0xf24 [cfg80211] [ 134.891687] [<ffffffbffcaaa490>] nl80211_put_sta_rate+0xde0/0xf24 [cfg80211] [ 134.898975] [<ffffffc0004de748>] genl_lock_dumpit+0x30/0x4c [ 134.905998] [<ffffffc0004dc264>] netlink_dump+0xf4/0x248 [ 134.911291] [<ffffffc0004dc910>] __netlink_dump_start+0xe0/0x174 [ 134.916850] [<ffffffc0004df114>] genl_family_rcv_msg+0x130/0x2c0 Signed-off-by: Tamizh chelvam <tamizhr@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-11-27ath11k: convert message from info to dbgJohn Crispin1-2/+3
We can regularly see the following message. - "ath11k c000000.wifi1: failed to find the peer with peer_id 4" This happens when the FW starts sending stats for the peer whilst the peer is not fully associated. Convert this info message to a debug one. Signed-off-by: Shashidhar Lakkavalli <slakkavalli@datto.com> Signed-off-by: John Crispin <john@phrozen.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-11-27ath11k: add RX stats support for radiotapJohn Crispin1-0/+10
mac80211 expects the definition of what HE rate info is available inside a struct prepended to the skb. Signed-off-by: Shashidhar Lakkavalli <slakkavalli@datto.com> Signed-off-by: John Crispin <john@phrozen.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-11-25ath11k: driver for Qualcomm IEEE 802.11ax devicesKalle Valo1-0/+4143
ath11k is a new driver for Qualcomm IEEE 802.11ax devices, first supporting only IPQ8074 SoC using the shared memory AHB bus. ath11k uses mac80211 and supports AP, Station and Mesh modes. Even though ath11k has some similar code as with ath10k (especially the WMI layer) it was concluded to be simpler to have a "clean start" for ath11k code base and not try to share the code with ath10k. This makes maintenance easier and avoids major changes in ath10k, which would have significantly increased the risk of regressions in existing setups. Even though the driver is very similar with ath10k but there are major differences as well. The datapath is completely different. ath11k supports multiple MACs, called "soc" in the firmware interface. And there's only one WMI interface to support. Currently ath11k supports only IEEE 802.11ac mode, but patches for 802.11ax are available and they will be submitted after ath11k is accepted to upstream. The firmware images are available from ath11k-firmware repository but they will be also submitted to linux-firmware: https://github.com/kvalo/ath11k-firmware This was tested with firmware version WLAN.HK.2.1.0.1-00629-QCAHKSWPL_SILICONZ-1. The driver has had multiple authors who are listed in alphabetical order below. Signed-off-by: Anilkumar Kolli <akolli@codeaurora.org> Signed-off-by: Bhagavathi Perumal S <bperumal@codeaurora.org> Signed-off-by: Ganesh Sesetti <gseset@codeaurora.org> Signed-off-by: Govindaraj Saminathan <gsamin@codeaurora.org> Signed-off-by: John Crispin <john@phrozen.org> Signed-off-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Signed-off-by: Karthikeyan Periyasamy <periyasa@codeaurora.org> Signed-off-by: kbuild test robot <lkp@intel.com> Signed-off-by: Maharaja Kennadyrajan <mkenna@codeaurora.org> Signed-off-by: Manikanta Pubbisetty <mpubbise@codeaurora.org> Signed-off-by: Miles Hu <milehu@codeaurora.org> Signed-off-by: Muna Sinada <msinada@codeaurora.org> Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org> Signed-off-by: Rajkumar Manoharan <rmanohar@codeaurora.org> Signed-off-by: Sathishkumar Muruganandam <murugana@codeaurora.org> Signed-off-by: Shashidhar Lakkavalli <slakkavalli@datto.com> Signed-off-by: Sriram R <srirrama@codeaurora.org> Signed-off-by: Sven Eckelmann <seckelmann@datto.com> Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@codeaurora.org> Signed-off-by: Venkateswara Naralasetty <vnaralas@codeaurora.org>
generated by cgit v1.2.3 (git 2.39.0) at 2025-03-02 20:56:54 +0300