Commit Graph

134 Commits

Author SHA1 Message Date
Miles Hu 67a9d399fc ath11k: enable RX PPDU stats in monitor co-exist mode
RX PPDU statistics collection is missing when monitor mode co-exists
with other modes. This commit combines the processing of the destination
ring with the status ring to fix the issue.

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.5.0.1-01179-QCAHKSWPL_SILICONZ-1
Signed-off-by: Miles Hu <milehu@codeaurora.org>
Signed-off-by: Aloka Dixit <quic_alokad@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220111032224.14093-1-quic_alokad@quicinc.com
2022-01-17 14:36:54 +02:00
P Praneesh b3febdccde ath11k: add LDPC FEC type in 802.11 radiotap header
LDPC is one the FEC type advertised in msdu_start info2 for HT packet
type. Hence, add hardware specific callback for fetching LDPC
support from msdu start and enable RX_ENC_FLAG_LDPC flag while passing
rx status to mac80211.

Tested-on: IPQ8074 WLAN.HK.2.4.0.1-01467-QCAHKSWPL_SILICONZ-1

Signed-off-by: P Praneesh <quic_ppranees@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/1638294648-844-3-git-send-email-quic_ppranees@quicinc.com
2022-01-12 10:06:14 +02:00
Baochen Qiang 71c748b5e0 ath11k: Fix unexpected return buffer manager error for QCA6390
We are seeing below error on QCA6390:
...
[70211.671189] ath11k_pci 0000:72:00.0: failed to parse rx error in wbm_rel ring desc -22
[70212.696154] ath11k_pci 0000:72:00.0: failed to parse rx error in wbm_rel ring desc -22
[70213.092941] ath11k_pci 0000:72:00.0: failed to parse rx error in wbm_rel ring desc -22
...

The reason is that, with commit 734223d784 ("ath11k: change return
buffer manager for QCA6390"), ath11k expects the return buffer manager
(RBM) field of descriptor configured as HAL_RX_BUF_RBM_SW1_BM when
parsing error frames from WBM2SW3_RELEASE ring. This is a wrong change
cause the RBM field is set as HAL_RX_BUF_RBM_SW3_BM.

The same issue also applies to REO2TCL ring though we have not got any
error reported.

Fix it by changing RBM from HAL_RX_BUF_RBM_SW1_BM to HAL_RX_BUF_RBM_SW3_BM
for these two rings.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Fixes: 734223d784 ("ath11k: change return buffer manager for QCA6390")
Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20211222013536.582527-1-quic_bqiang@quicinc.com
2021-12-22 19:39:13 +02:00
Wen Gong 1b8bb94c06 ath11k: report tx bitrate for iw wlan station dump
HTT_T2H_MSG_TYPE_PPDU_STATS_IND is a message which include the ppdu
info, currently it is not report from firmware for ath11k, then the
tx bitrate of "iw wlan0 station dump" always show an invalid value
"tx bitrate: 6.0 MBit/s".

To address the issue, this is to parse the info of tx complete report
from firmware and indicate the tx rate to mac80211.

After that, "iw wlan0 station dump" show the correct tx bit rate such
as:
tx bitrate: 78.0 MBit/s MCS 12
tx bitrate: 144.4 MBit/s VHT-MCS 7 short GI VHT-NSS 2
tx bitrate: 286.7 MBit/s HE-MCS 11 HE-NSS 2 HE-GI 0 HE-DCM 0
tx bitrate: 1921.5 MBit/s 160MHz HE-MCS 9 HE-NSS 2 HE-GI 0 HE-DCM 0

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20211217093722.5739-1-quic_wgong@quicinc.com
2021-12-20 20:29:01 +02:00
Wen Gong b488c76644 ath11k: report rssi of each chain to mac80211 for QCA6390/WCN6855
Command "iw wls1 station dump" does not show each chain's rssi currently.

If the rssi of each chain from mon status which parsed in function
ath11k_hal_rx_parse_mon_status_tlv() is invalid, then ath11k send
wmi cmd WMI_REQUEST_STATS_CMDID with flag WMI_REQUEST_RSSI_PER_CHAIN_STAT
to firmware, and parse the rssi of chain in wmi WMI_UPDATE_STATS_EVENTID,
then report them to mac80211.

WMI_REQUEST_STATS_CMDID is only sent when CONFIG_ATH11K_DEBUGFS is set,
it is only called by ath11k_mac_op_sta_statistics(). It does not effect
performance and power consumption. Because after STATION connected to
AP, it is only called every 6 seconds by NetworkManager in below stack.

[  797.005587] CPU: 0 PID: 701 Comm: NetworkManager Tainted: G        W  OE     5.13.0-rc6-wt-ath+ #2
[  797.005596] Hardware name: LENOVO 418065C/418065C, BIOS 83ET63WW (1.33 ) 07/29/2011
[  797.005600] RIP: 0010:ath11k_mac_op_sta_statistics+0x2f/0x1b0 [ath11k]
[  797.005644] Code: 41 56 41 55 4c 8d aa 58 01 00 00 41 54 55 48 89 d5 53 48 8b 82 58 01 00 00 48 89 cb 4c 8b 70 20 49 8b 06 4c 8b a0 90 08 00 00 <0f> 0b 48 8b 82 b8 01 00 00 48 ba 00 00 00 00 01 00 00 00 48 89 81
[  797.005651] RSP: 0018:ffffb1fc80a4b890 EFLAGS: 00010282
[  797.005658] RAX: ffff8a5726200000 RBX: ffffb1fc80a4b958 RCX: ffffb1fc80a4b958
[  797.005664] RDX: ffff8a5726a609f0 RSI: ffff8a581247f598 RDI: ffff8a5702878800
[  797.005668] RBP: ffff8a5726a609f0 R08: 0000000000000000 R09: 0000000000000000
[  797.005672] R10: 0000000000000000 R11: 0000000000000007 R12: 02dd68024f75f480
[  797.005676] R13: ffff8a5726a60b48 R14: ffff8a5702879f40 R15: ffff8a5726a60000
[  797.005681] FS:  00007f632c52a380(0000) GS:ffff8a583a200000(0000) knlGS:0000000000000000
[  797.005687] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  797.005692] CR2: 00007fb025d69000 CR3: 00000001124f6005 CR4: 00000000000606f0
[  797.005698] Call Trace:
[  797.005710]  sta_set_sinfo+0xa7/0xb80 [mac80211]
[  797.005820]  ieee80211_get_station+0x50/0x70 [mac80211]
[  797.005925]  nl80211_get_station+0xd1/0x200 [cfg80211]
[  797.006045]  genl_family_rcv_msg_doit.isra.15+0x111/0x140
[  797.006059]  genl_rcv_msg+0xe6/0x1e0
[  797.006065]  ? nl80211_dump_station+0x220/0x220 [cfg80211]
[  797.006223]  ? nl80211_send_station.isra.72+0xf50/0xf50 [cfg80211]
[  797.006348]  ? genl_family_rcv_msg_doit.isra.15+0x140/0x140
[  797.006355]  netlink_rcv_skb+0xb9/0xf0
[  797.006363]  genl_rcv+0x24/0x40
[  797.006369]  netlink_unicast+0x18e/0x290
[  797.006375]  netlink_sendmsg+0x30f/0x450
[  797.006382]  sock_sendmsg+0x5b/0x60
[  797.006393]  ____sys_sendmsg+0x219/0x240
[  797.006403]  ? copy_msghdr_from_user+0x5c/0x90
[  797.006413]  ? ____sys_recvmsg+0xf5/0x190
[  797.006422]  ___sys_sendmsg+0x88/0xd0
[  797.006432]  ? copy_msghdr_from_user+0x5c/0x90
[  797.006443]  ? ___sys_recvmsg+0x9e/0xd0
[  797.006454]  ? __fget_files+0x58/0x90
[  797.006461]  ? __fget_light+0x2d/0x70
[  797.006466]  ? do_epoll_wait+0xce/0x720
[  797.006476]  ? __sys_sendmsg+0x63/0xa0
[  797.006485]  __sys_sendmsg+0x63/0xa0
[  797.006497]  do_syscall_64+0x3c/0xb0
[  797.006509]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[  797.006519] RIP: 0033:0x7f632d99912d
[  797.006526] Code: 28 89 54 24 1c 48 89 74 24 10 89 7c 24 08 e8 ca ee ff ff 8b 54 24 1c 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 2f 44 89 c7 48 89 44 24 08 e8 fe ee ff ff 48
[  797.006533] RSP: 002b:00007ffd80808c00 EFLAGS: 00000293 ORIG_RAX: 000000000000002e
[  797.006540] RAX: ffffffffffffffda RBX: 0000563dab99d840 RCX: 00007f632d99912d
[  797.006545] RDX: 0000000000000000 RSI: 00007ffd80808c50 RDI: 000000000000000b
[  797.006549] RBP: 00007ffd80808c50 R08: 0000000000000000 R09: 0000000000001000
[  797.006552] R10: 0000563dab96f010 R11: 0000000000000293 R12: 0000563dab99d840
[  797.006556] R13: 0000563dabbb28c0 R14: 00007f632dad4280 R15: 0000563dabab11c0
[  797.006563] ---[ end trace c9dcf08920c9945c ]---

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01230-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-02892.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1

Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20211215090944.19729-1-quic_wgong@quicinc.com
2021-12-20 18:05:29 +02:00
Anilkumar Kolli 7e2ea2e947 ath11k: Process full monitor mode rx support
In full monitor mode, monitor destination ring is read before monitor
status ring. mon_dst_ring has ppdu id, reap till the end of PPDU. Add
all the MPDUs to list. Start processing the status ring, if PPDU id in
status ring is lagging behind, reap the status ring, once the PPDU ID
matches, deliver the MSDU to upper layer. If status PPDU id leading,
reap the mon_dst_ring.

The advantage with full monitor mode is hardware has status buffers
available for all the MPDUs in mon_dst_ring, which makes it possible
to deliver more frames to be seen on sniffer.

Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.4.0.1-01734-QCAHKSWPL_SILICONZ-1

Signed-off-by: Anilkumar Kolli <akolli@codeaurora.org>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/1638881695-22155-4-git-send-email-akolli@codeaurora.org
2021-12-09 10:10:33 +02:00
Anilkumar Kolli 09f16f7390 ath11k: Fix mon status ring rx tlv processing
In HE monitor capture, HAL_TLV_STATUS_PPDU_DONE is received
on processing multiple skb. Do not clear the ppdu_info
till the HAL_TLV_STATUS_PPDU_DONE is received.

This fixes below warning and packet drops in monitor mode.
 "Rate marked as an HE rate but data is invalid: MCS: 6, NSS: 0"
 WARNING: at
 PC is at ieee80211_rx_napi+0x624/0x840 [mac80211]

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01693-QCAHKSWPL_SILICONZ-1

Signed-off-by: Anilkumar Kolli <akolli@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1637249433-10316-1-git-send-email-akolli@codeaurora.org
2021-11-22 16:35:39 +02:00
P Praneesh 787264893c ath11k: fix FCS_ERR flag in radio tap header
In radio tap header, BAD FCS flag is not updated properly because
driver failed to update FCS_ERR flag in monitor mode.

In rx_desc, FCS_ERR information is available in rx_attention
structure and presence of this field indicates corresponding frame
failed FCS check.

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01695-QCAHKSWPL_SILICONZ-1

Signed-off-by: P Praneesh <quic_ppranees@quicinc.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1635164060-18423-1-git-send-email-quic_ppranees@quicinc.com
2021-11-15 11:24:51 +02:00
P Praneesh 400588039a ath11k: add branch predictors in process_rx
In datapath, add branch predictors where required in the process rx().
This protects high value rx path without having performance overhead.
Also while processing rx packets, the pointer that is returned by
rcu_dereference() is not dereferenced. so it is preferable to use
rcu_access_pointer() here.

Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.4.0.1.r2-00012-QCAHKSWPL_SILICONZ-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01695-QCAHKSWPL_SILICONZ-1

Co-developed-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: P Praneesh <ppranees@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1630560820-21905-8-git-send-email-ppranees@codeaurora.org
2021-11-15 11:21:53 +02:00
P Praneesh db2ecf9f05 ath11k: remove usage quota while processing rx packets
The usage of quota variable inside ath11k_dp_rx_process_received_packets()
is redundant. Since we would queue only max packets to the list before
calling this function so it would never exceed quota. Hence removing
usage of quota variable.

Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.4.0.1.r2-00012-QCAHKSWPL_SILICONZ-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01695-QCAHKSWPL_SILICONZ-1

Co-developed-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: P Praneesh <ppranees@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1630560820-21905-7-git-send-email-ppranees@codeaurora.org
2021-11-15 11:21:52 +02:00
P Praneesh c4d12cb37e ath11k: avoid active pdev check for each msdu
The Active Pdev and CAC check are done for each msdu in
ath11k_dp_rx_process_received_packets which is a overhead.
To avoid this overhead, collect all msdus in a per mac msdu
list and pass to function.

Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.4.0.1.r2-00012-QCAHKSWPL_SILICONZ-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01695-QCAHKSWPL_SILICONZ-1

Co-developed-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: P Praneesh <ppranees@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1630560820-21905-6-git-send-email-ppranees@codeaurora.org
2021-11-15 11:21:51 +02:00
P Praneesh a1775e732e ath11k: avoid additional access to ath11k_hal_srng_dst_num_free
In ath11k_dp_process_rx(), after processing rx_desc from
ath11k_hal_srng_dst_get_next_entry(), ath11k_hal_srng_dst_num_free()
is accessed everytime because of done flag is not set.

To avoid this additional access to ath11k_hal_srng_dst_num_free(),
increment total_msdu_reaped only when continuation is not set and
update done flag correspondingly.

Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.4.0.1.r2-00012-QCAHKSWPL_SILICONZ-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01695-QCAHKSWPL_SILICONZ-1

Co-developed-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: P Praneesh <ppranees@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1630560820-21905-5-git-send-email-ppranees@codeaurora.org
2021-11-15 11:21:51 +02:00
P Praneesh 5e76fe03db ath11k: modify dp_rx desc access wrapper calls inline
In data path, to reduce the CPU cycles spending on descriptor access
wrapper function, changed those functions as static inline.

Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.4.0.1.r2-00012-QCAHKSWPL_SILICONZ-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01695-QCAHKSWPL_SILICONZ-1

Co-developed-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: P Praneesh <ppranees@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1630560820-21905-4-git-send-email-ppranees@codeaurora.org
2021-11-15 11:21:50 +02:00
Baochen Qiang 734223d784 ath11k: change return buffer manager for QCA6390
QCA6390 firmware uses HAL_RX_BUF_RBM_SW1_BM, not HAL_RX_BUF_RBM_SW3_BM. This is
needed to fix a case where an A-MSDU has an unexpected LLC/SNAP header in the
first subframe (CVE-2020-24588).

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Baochen Qiang <bqiang@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210914163726.38604-2-jouni@codeaurora.org
2021-10-25 16:03:08 +03:00
Tim Gardner 7210b4b77f ath11k: Remove unused variable in ath11k_dp_rx_mon_merg_msdus()
Coverity complains that a constant variable guards dead code. In fact,
mpdu_buf is set NULL and never updated.

4834err_merge_fail:
    	null: At condition mpdu_buf, the value of mpdu_buf must be NULL.
    	dead_error_condition: The condition mpdu_buf cannot be true.
CID 92162 (#1 of 1): 'Constant' variable guards dead code (DEADCODE)
dead_error_line: Execution cannot reach the expression decap_format !=
  DP_RX_DECAP_TYPE_RAW inside this statement: if (mpdu_buf && decap_forma....
Local variable mpdu_buf is assigned only once, to a constant value, making it
  effectively constant throughout its scope. If this is not the intent, examine
  the logic to see if there is a missing assignment that would make mpdu_buf not
  remain constant.
4835        if (mpdu_buf && decap_format != DP_RX_DECAP_TYPE_RAW) {

Fix this by removing mpdu_buf and unreachable code.

Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: ath11k@lists.infradead.org
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210927150743.19816-1-tim.gardner@canonical.com
2021-10-05 17:29:20 +03:00
Baochen Qiang 86a03dad0f ath11k: Change DMA_FROM_DEVICE to DMA_TO_DEVICE when map reinjected packets
For fragmented packets, ath11k reassembles each fragment as a normal
packet and then reinjects it into HW ring. In this case, the DMA
direction should be DMA_TO_DEVICE, not DMA_FROM_DEVICE, otherwise
invalid payload will be reinjected to HW and then delivered to host.
What is more, since arbitrary memory could be allocated to the frame, we
don't know what kind of data is contained in the buffer reinjected.
Thus, as a bad result, private info may be leaked.

Note that this issue is only found on Intel platform.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Signed-off-by: Baochen Qiang <bqiang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210916064617.20006-1-bqiang@codeaurora.org
2021-09-28 17:05:34 +03:00
Baochen Qiang cd18ed4cf8 ath11k: Drop MSDU with length error in DP rx path
There are MSDUs whose length are invalid. For example,
attackers may inject on purpose truncated A-MSDUs with
invalid MSDU length.

Such MSDUs are marked with an err bit set in rx attention
tlvs, so we can check and drop them.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1

Signed-off-by: Baochen Qiang <bqiang@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210913180246.193388-2-jouni@codeaurora.org
2021-09-28 16:33:40 +03:00
Pradeep Kumar Chitrapu 9d6ae1f5cf ath11k: fix packet drops due to incorrect 6 GHz freq value in rx status
Frequency in rx status is being filled incorrectly in the 6 GHz band as
channel number received is invalid in this case which is causing packet
drops. So fix that.

Fixes: 5dcf42f8b7 ("ath11k: Use freq instead of channel number in rx path")
Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210722102054.43419-2-jouni@codeaurora.org
2021-09-28 16:16:54 +03:00
Anilkumar Kolli ab18e3bc1c ath11k: Fix pktlog lite rx events
Fix sending rx_buf_sz to ath11k_dp_tx_htt_rx_filter_setup()
to enable pktlog full or lite mode. Depending on mode update the
trace buffer with log type full/lite.

Pktlog lite is a lighter version of pktlog. This can be used to capture
PPDU stats. These are useful for firmware performance debugging.

pktlog lite dumps are enabled using,
  echo "0x0 1" > ath11k/IPQ8074 hw2.0/mac0/pktlog_filter

Tested On: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01233-QCAHKSWPL_SILICONZ-1 v2

Signed-off-by: Anilkumar Kolli <akolli@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210721212029.142388-1-jouni@codeaurora.org
2021-09-28 13:57:30 +03:00
Sriram R 2167fa606c ath11k: Add support for RX decapsulation offload
Add support for rx decapsulation offload by advertising
the support to mac80211 during registration. Also ensure
the frames have the RX_FLAG_8023 flag set in decap offload
frames before passing to mac80211.

Since the packets delivered to the driver are in 802.3 format, these
can be sent to the network core with minimal processing in mac80211.
This helps in releasing some CPU cycles in the host processor and
thereby improving the performance.

Two exceptions are made before passing decap frames, one is
for EAPOL packets since mac80211 8023 fast rx for the sta
is set only after authorization, other case is for multicast
packets to validate PN in mac80211. In both the cases the
decap frames are converted to 80211 frame and sent to mac80211.

Ethernet decap can be enabled by using frame_mode modparam:

insmod ath11k frame_mode=2

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.5.0.1-00844-QCAHKSWPL_SILICONZ-1 v2

Co-developed-by: Manikanta Pubbisetty <mpubbise@codeaurora.org>
Signed-off-by: Manikanta Pubbisetty <mpubbise@codeaurora.org>
Signed-off-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210721204217.120572-1-jouni@codeaurora.org
2021-09-28 13:56:28 +03:00
Seevalamuthu Mariappan 689a5e6fff ath11k: monitor mode clean up to use separate APIs
If monitor interface is enabled in co-exist mode, only local traffic are
captured. It's caused by missing monitor vdev in co-exist mode. So,
monitor mode clean up is done with separate Monitor APIs. For this,
introduce flags monitor_started and monitor_vdev_created.

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01725-QCAHKSWPL_SILICONZ-1

Co-developed-by: Miles Hu <milehu@codeaurora.org>
Signed-off-by: Miles Hu <milehu@codeaurora.org>
Co-developed-by: Vasanthakumar Thiagarajan <vthiagar@codeaurora.org>
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@codeaurora.org>
Signed-off-by: Seevalamuthu Mariappan <seevalam@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210721162053.46290-4-jouni@codeaurora.org
2021-09-24 14:34:02 +03:00
Christophe JAILLET 0791ba2bc7 ath11k: Remove some duplicate code
'ATH11K_HE_MCS_MAX' is 11, so these 2 blocks of code are exactly the same.
Remove the one that uses a hard-coded constant.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/a65952db7f4eb8aaaa654b77dcd4930482f5c49b.1624483438.git.christophe.jaillet@wanadoo.fr
2021-07-02 14:40:24 +03:00
Sriram R 210f563b09 ath11k: Drop multicast fragments
Fragmentation is used only with unicast frames. Drop multicast fragments
to avoid any undesired behavior.

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01734-QCAHKSWPL_SILICONZ-1 v2

Cc: stable@vger.kernel.org
Signed-off-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Link: https://lore.kernel.org/r/20210511200110.1d53bfd20a8b.Ibb63283051bb5e2c45951932c6e1f351d5a73dc3@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2021-05-11 20:16:30 +02:00
Sriram R c3944a5621 ath11k: Clear the fragment cache during key install
Currently the fragment cache setup during peer assoc is
cleared only during peer delete. In case a key reinstallation
happens with the same peer, the same fragment cache with old
fragments added before key installation could be clubbed
with fragments received after. This might be exploited
to mix fragments of different data resulting in a proper
unintended reassembled packet to be passed up the stack.

Hence flush the fragment cache on every key installation to prevent
potential attacks (CVE-2020-24587).

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01734-QCAHKSWPL_SILICONZ-1 v2

Cc: stable@vger.kernel.org
Signed-off-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Link: https://lore.kernel.org/r/20210511200110.218dc777836f.I9af6fc76215a35936c4152552018afb5079c5d8c@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2021-05-11 20:16:21 +02:00
Karthikeyan Periyasamy e678fbd401 ath11k: add data path support for QCN9074
hal rx descriptor is different for QCN9074 target type. since
rx_msdu_end, rx_msdu_start, rx_mpdu_start elements are in
different placement/alignment. In order to have generic data path,
introduce platform specific hal rx descriptor access ops in
ath11k_hw_ops.

Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.4.0.1.r2-00012-QCAHKSWPL_SILICONZ-1

Signed-off-by: Karthikeyan Periyasamy <periyasa@codeaurora.org>
Signed-off-by: Anilkumar Kolli <akolli@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1612946530-28504-9-git-send-email-akolli@codeaurora.org
2021-02-17 11:32:51 +02:00
Karthikeyan Periyasamy 4b965be536 ath11k: Update tx descriptor search index properly
Tx descriptor search index field should be updated with hw peer id
and not by AST Hash as per the HW/FW recommendation. Incorrect search
index causes throughput degradation in all scenario for all the
platforms. so updated the search index field with hw peer id, which
is a common change applicable for all the platforms. Also no need of these
configuration for non station type. seen 10% throughput increase in WDS
traffic with this change.

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01492-QCAHKSWPL_SILICONZ-1

Signed-off-by: Karthikeyan Periyasamy <periyasa@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1612410960-9120-1-git-send-email-periyasa@codeaurora.org
2021-02-09 09:22:52 +02:00
Tom Rix bb2d2dfd3c ath11k: remove h from printk format specifier
This change fixes the checkpatch warning described in this commit
commit cbacb5ab0a ("docs: printk-formats: Stop encouraging use of
  unnecessary %h[xudi] and %hh[xudi]")

Standard integer promotion is already done and %hx and %hhx is useless
so do not encourage the use of %hh[xudi] or %h[xudi].

Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210128144928.2557605-1-trix@redhat.com
2021-02-04 09:39:10 +02:00
Kalle Valo dc5771dfb2 Merge ath-next from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
ath.git patches for v5.12. Major changes:

ath9k

* more robust encryption key cache management
2021-01-11 19:42:29 +02:00
Dan Carpenter abdcd4cbec ath11k: dp: clean up a variable name
The "&ar->ab->base_lock" and "&ab->base_lock" locks are the same lock
but it's nicer to use the same name consistently everywhere.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/X9s7QAHDM2OTIo3a@mwanda
2020-12-18 11:05:10 +02:00
Carl Huang 3597010630 ath11k: fix crash caused by NULL rx_channel
During connect and disconnect stress test, crashed happened
because ar->rx_channel is NULL. Fix it by checking whether
ar->rx_channel is NULL.

Crash stack is as below:
RIP: 0010:ath11k_dp_rx_h_ppdu+0x110/0x230 [ath11k]
[ 5028.808963]  ath11k_dp_rx_wbm_err+0x14a/0x360 [ath11k]
[ 5028.808970]  ath11k_dp_rx_process_wbm_err+0x41c/0x520 [ath11k]
[ 5028.808978]  ath11k_dp_service_srng+0x25e/0x2d0 [ath11k]
[ 5028.808982]  ath11k_pci_ext_grp_napi_poll+0x23/0x80 [ath11k_pci]
[ 5028.808986]  net_rx_action+0x27e/0x400
[ 5028.808990]  __do_softirq+0xfd/0x2bb
[ 5028.808993]  irq_exit+0xa6/0xb0
[ 5028.808995]  do_IRQ+0x56/0xe0
[ 5028.808997]  common_interrupt+0xf/0xf

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201211055613.9310-1-cjhuang@codeaurora.org
2020-12-17 08:46:05 +02:00
Carl Huang 840c36fa72 ath11k: dp: stop rx pktlog before suspend
Stop dp rx pktlog when entering suspend and reap the mon_status buffer to keep
it empty. During resume restart the reap timer.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1607708150-21066-7-git-send-email-kvalo@codeaurora.org
2020-12-12 06:41:31 +02:00
Kalle Valo cd6181ff7e ath11k: dp_rx: fix monitor status dma unmap direction
After enabling CONFIG_DMA_API_DEBUG there was a warning about using
dma_unmap_single() in wrong direction from ath11k_dp_rx_process_mon_status().

[  140.279477] ------------[ cut here ]------------
[  140.279908] DMA-API: ath11k_pci 0000:06:00.0: device driver syncs DMA memory with different direction [device address=0x00000000fac08a40] [size=2176 bytes] [mapped with DMA_FROM_DEVICE] [s
[  140.279925] WARNING: CPU: 7 PID: 97 at kernel/dma/debug.c:1120 check_sync+0x494/0x730
[  140.279939] Modules linked in: ath11k_pci ath11k mac80211 libarc4 cfg80211 qmi_helpers qrtr_mhi mhi qrtr ns nvme nvme_core
[  140.279958] CPU: 7 PID: 97 Comm: kworker/u16:1 Not tainted 5.10.0-rc4+ #262
[  140.279968] Hardware name: Intel(R) Client Systems NUC8i7HVK/NUC8i7HVB, BIOS HNKBLi70.86A.0049.2018.0801.1601 08/01/2018
[  140.279995] Workqueue: phy0 ieee80211_scan_work [mac80211]
[  140.280009] RIP: 0010:check_sync+0x494/0x730
[  140.280022] Code: 8b 4c 24 10 4c 8b 44 24 18 4c 8b 54 24 20 48 89 c6 4c 89 54 24 10 4c 89 f9 4c 89 ea 48 c7 c7 40 b9 74 9c 41 56 e8 2f a0 ab 00 <0f> 0b 48 89 ef e8 e5 17 ac 00 41 58 4c 8b
[  140.280033] RSP: 0018:ffff9f588024cbd8 EFLAGS: 00010086
[  140.280046] RAX: 0000000000000000 RBX: ffff9f588024cc40 RCX: ffff8eed18dd9f98
[  140.280057] RDX: 00000000ffffffd8 RSI: 0000000000000027 RDI: ffff8eed18dd9f90
[  140.280067] RBP: ffff8eebc1407800 R08: 00000000ffffffea R09: 0000000000000000
[  140.280082] R10: 0000000000000003 R11: 3fffffffffffffff R12: ffffffff9e081060
[  140.280093] R13: ffff8eebc43908b0 R14: ffffffff9c74c104 R15: 00000000fac08a40
[  140.280104] FS:  0000000000000000(0000) GS:ffff8eed18c00000(0000) knlGS:0000000000000000
[  140.280115] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  140.280127] CR2: 00007f6feafb12a0 CR3: 00000001604ca001 CR4: 00000000003706e0
[  140.280138] Call Trace:
[  140.280149]  <IRQ>
[  140.280161]  debug_dma_sync_single_for_cpu+0x79/0x80
[  140.280173]  ? mark_held_locks+0x50/0x80
[  140.280185]  ? lockdep_hardirqs_on_prepare.part.0+0x65/0x130
[  140.280197]  ? __local_bh_enable_ip+0x6f/0xb0
[  140.280215]  ? ath11k_dp_rx_reap_mon_status_ring+0x202/0x340 [ath11k]
[  140.280231]  ath11k_dp_rx_reap_mon_status_ring+0x22c/0x340 [ath11k]
[  140.280249]  ? ath11k_dp_rx_process_mon_rings+0x1a0/0x1a0 [ath11k]
[  140.280265]  ath11k_dp_rx_process_mon_status+0x83/0x3c0 [ath11k]
[  140.280278]  ? __lock_acquire+0x3bd/0x6d0
[  140.280296]  ? ath11k_dp_rx_process_mon_rings+0x1a0/0x1a0 [ath11k]
[  140.280311]  ? ath11k_dp_rx_process_mon_rings+0x1a0/0x1a0 [ath11k]
[  140.280326]  ? ath11k_hw_mac_id_to_srng_id_qca6390+0x10/0x10 [ath11k]
[  140.280341]  ? ath11k_dp_rx_process_mon_rings+0x4a/0x1a0 [ath11k]
[  140.280353]  ? timer_fixup_init+0x30/0x30
[  140.280367]  ? ath11k_dp_rx_process_mon_rings+0x1a0/0x1a0 [ath11k]
[  140.280385]  ath11k_dp_service_mon_ring+0x2b/0x50 [ath11k]
[  140.280400]  ? ath11k_dp_rx_process_mon_rings+0x1a0/0x1a0 [ath11k]
[  140.280413]  call_timer_fn+0xb1/0x2d0
[  140.280426]  __run_timers.part.0+0x205/0x2f0
[  140.280439]  run_timer_softirq+0x21/0x50
[  140.280450]  __do_softirq+0xc2/0x454
[  140.280463]  asm_call_irq_on_stack+0x12/0x20
[  140.280476]  </IRQ>
[  140.280488]  do_softirq_own_stack+0x56/0x60
[  140.280500]  irq_exit_rcu+0x9a/0xd0
[  140.280511]  sysvec_apic_timer_interrupt+0x43/0xa0
[  140.280526]  asm_sysvec_apic_timer_interrupt+0x12/0x20
[  140.280540] RIP: 0010:_raw_spin_unlock_irqrestore+0x25/0x40
[  140.280551] Code: 80 00 00 00 00 55 48 89 fd 48 83 c7 18 53 48 89 f3 48 8b 74 24 10 e8 ca 8f 4b ff 48 89 ef e8 22 dc 4b ff f6 c7 02 75 0c 53 9d <65> ff 0d 04 51 20 64 5b 5d c3 e8 9c 08 56
[  140.280563] RSP: 0018:ffff9f58802e7878 EFLAGS: 00000246
[  140.280578] RAX: 00000000000435ef RBX: 0000000000000246 RCX: 0000000000000040
[  140.280592] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff9be13e84
[  140.280603] RBP: ffff8eed18dde480 R08: 0000000000000001 R09: ffff8eebc2292760
[  140.280614] R10: 0000000000000005 R11: ffff8eebc2292760 R12: 0000000000000000
[  140.280625] R13: ffff9f58802e7900 R14: ffff8eed18dde480 R15: ffff8eed18dde480
[  140.280637]  ? _raw_spin_unlock_irqrestore+0x34/0x40
[  140.280649]  __mod_timer+0x274/0x400
[  140.280661]  ? wait_for_completion_timeout+0x76/0x110
[  140.280675]  schedule_timeout+0xa8/0x140
[  140.280687]  ? __next_timer_interrupt+0x100/0x100
[  140.280698]  wait_for_completion_timeout+0xa2/0x110
[  140.280714]  ath11k_start_scan+0x4c/0xf0 [ath11k]
[  140.280730]  ath11k_mac_op_hw_scan+0x1e9/0x2c0 [ath11k]
[  140.280763]  drv_hw_scan+0x79/0x260 [mac80211]
[  140.280789]  __ieee80211_scan_completed+0x379/0x440 [mac80211]
[  140.280816]  ieee80211_scan_work+0x12f/0x330 [mac80211]
[  140.280830]  process_one_work+0x279/0x5b0
[  140.280842]  worker_thread+0x49/0x300
[  140.280854]  ? process_one_work+0x5b0/0x5b0
[  140.280868]  kthread+0x135/0x150
[  140.280880]  ? __kthread_bind_mask+0x60/0x60
[  140.280891]  ret_from_fork+0x22/0x30
[  140.280903] irq event stamp: 275961
[  140.280918] hardirqs last  enabled at (275960): [<ffffffff9b270f1f>] __local_bh_enable_ip+0x6f/0xb0
[  140.280931] hardirqs last disabled at (275961): [<ffffffff9be13ca3>] _raw_spin_lock_irqsave+0x63/0x80
[  140.280946] softirqs last  enabled at (275944): [<ffffffffc055288d>] ath11k_ce_send+0x14d/0x260 [ath11k]
[  140.280958] softirqs last disabled at (275953): [<ffffffff9c000f72>] asm_call_irq_on_stack+0x12/0x20
[  140.280971] ---[ end trace 31cb94e18d401398 ]---

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1606156046-24764-1-git-send-email-kvalo@codeaurora.org
2020-12-02 20:34:04 +02:00
Vasanthakumar Thiagarajan bafdbd79aa ath11k: Remove unnecessary data sync to cpu on monitor buffer
Monitor ring Rx buffer is not really modified between dma map
and unmap. So remove the unnecssary data sync before dma unmap.
This does not fix any visible issue, found in code review.

Compile tested only.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1602744454-22969-1-git-send-email-vthiagar@codeaurora.org
2020-11-07 09:59:20 +02:00
Kalle Valo 16f283f0a4 ath11k: remove repeated words in comments and warnings
Found by latest checkpatch.

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1603803705-22447-1-git-send-email-kvalo@codeaurora.org
2020-10-28 15:44:04 +02:00
Carl Huang 701e48a43e ath11k: add packet log support for QCA6390
Add packet log support for QCA6390, otherwise the data connection will stall
within a minute or so.  Enable it via debugfs and use trace-cmd to capture the
pktlogs.

echo 0xffff 1 > /sys/kernel/debug/ath11k/qca6390\ hw2.0/mac0/pktlog_filter

The mon status ring doesn't support interrupt so far, so host starts
a timer to reap this ring. The timer handler also reaps the
rxdma_err_dst_ring in case of monitor mode.

As QCA6390 requires bss created ahead of starting vdev, so check
vdev_start_delay for monitor mode.

For QCA6390, it uses wbm_desc_rel_ring to return descriptors.
It also uses rx_refill_buf_ring to fill mon buffer instead of
rxdma_mon_buf_ring.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1601463073-12106-2-git-send-email-kvalo@codeaurora.org
2020-10-01 22:32:04 +03:00
Govind Singh 87e8497a7d ath11k: Use GFP_ATOMIC instead of GFP_KERNEL in idr_alloc
With SLUB DEBUG CONFIG below crash is seen as kmem_cache_alloc
is being called in non-atomic context.
To fix this issue, use GFP_ATOMIC instead of GFP_KERNEL in idr_alloc.

BUG: sleeping function called from invalid context at mm/slab.h:393

[   59.805451] Call trace:
[   59.807971]  ___might_sleep+0x110/0x118
[   59.811915]  __might_sleep+0x50/0x84
[   59.815593]  kmem_cache_alloc+0x60/0x3e0
[   59.819630]  radix_tree_node_alloc+0x4c/0xe8
[   59.824014]  radix_tree_extend+0x8c/0x164
[   59.828135]  idr_get_free_cmn+0xa4/0x27c
[   59.832167]  idr_alloc_cmn+0x70/0xe8
[   59.835856]  ath11k_dp_rxbufs_replenish+0x1e8/0x310 [ath11k]
[   59.841687]  ath11k_dp_rxdma_ring_buf_setup+0x50/0x60 [ath11k]
[   59.847693]  ath11k_dp_rx_pdev_alloc+0x260/0x4d8 [ath11k]
[   59.853248]  ath11k_dp_pdev_alloc+0x40/0xc4 [ath11k]
[   59.858357]  ath11k_core_qmi_firmware_ready+0x3c4/0x490 [ath11k]
[   59.864538]  ath11k_qmi_driver_event_work+0x4c8/0x1178 [ath11k]
[   59.870620]  process_one_work+0x208/0x434

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1601399736-3210-9-git-send-email-kvalo@codeaurora.org
2020-10-01 22:31:11 +03:00
Wen Gong 6a8be1baa9 ath11k: Use GFP_ATOMIC instead of GFP_KERNEL in ath11k_dp_htt_get_ppdu_desc
With SLUB DEBUG CONFIG below crash is seen as kmem_cache_alloc
is being called in non-atomic context.

To fix this issue, use GFP_ATOMIC instead of GFP_KERNEL kzalloc.

[  357.217088] BUG: sleeping function called from invalid context at mm/slab.h:498
[  357.217091] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 0, name: swapper/0
[  357.217092] INFO: lockdep is turned off.
[  357.217095] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G        W         5.9.0-rc5-wt-ath+ #196
[  357.217096] Hardware name: Intel(R) Client Systems NUC8i7HVK/NUC8i7HVB, BIOS HNKBLi70.86A.0049.2018.0801.1601 08/01/2018
[  357.217097] Call Trace:
[  357.217098]  <IRQ>
[  357.217107]  ? ath11k_dp_htt_get_ppdu_desc+0xa9/0x170 [ath11k]
[  357.217110]  dump_stack+0x77/0xa0
[  357.217113]  ___might_sleep.cold+0xa6/0xb6
[  357.217116]  kmem_cache_alloc_trace+0x1f2/0x270
[  357.217122]  ath11k_dp_htt_get_ppdu_desc+0xa9/0x170 [ath11k]
[  357.217129]  ath11k_htt_pull_ppdu_stats.isra.0+0x96/0x270 [ath11k]
[  357.217135]  ath11k_dp_htt_htc_t2h_msg_handler+0xe7/0x1d0 [ath11k]
[  357.217137]  ? trace_hardirqs_on+0x1c/0x100
[  357.217143]  ath11k_htc_rx_completion_handler+0x207/0x370 [ath11k]
[  357.217149]  ath11k_ce_recv_process_cb+0x15e/0x1e0 [ath11k]
[  357.217151]  ? handle_irq_event+0x70/0xa8
[  357.217154]  ath11k_pci_ce_tasklet+0x10/0x30 [ath11k_pci]
[  357.217157]  tasklet_action_common.constprop.0+0xd4/0xf0
[  357.217160]  __do_softirq+0xc9/0x482
[  357.217162]  asm_call_on_stack+0x12/0x20
[  357.217163]  </IRQ>
[  357.217166]  do_softirq_own_stack+0x49/0x60
[  357.217167]  irq_exit_rcu+0x9a/0xd0
[  357.217169]  common_interrupt+0xa1/0x190
[  357.217171]  asm_common_interrupt+0x1e/0x40
[  357.217173] RIP: 0010:cpu_idle_poll.isra.0+0x2e/0x60
[  357.217175] Code: 8b 35 26 27 74 69 e8 11 c8 3d ff e8 bc fa 42 ff e8 e7 9f 4a ff fb 65 48 8b 1c 25 80 90 01 00 48 8b 03 a8 08 74 0b eb 1c f3 90 <48> 8b 03 a8 08 75 13 8b 0
[  357.217177] RSP: 0018:ffffffff97403ee0 EFLAGS: 00000202
[  357.217178] RAX: 0000000000000001 RBX: ffffffff9742b8c0 RCX: 0000000000b890ca
[  357.217180] RDX: 0000000000b890ca RSI: 0000000000000001 RDI: ffffffff968d0c49
[  357.217181] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001
[  357.217182] R10: ffffffff9742b8c0 R11: 0000000000000046 R12: 0000000000000000
[  357.217183] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000066fdf520
[  357.217186]  ? cpu_idle_poll.isra.0+0x19/0x60
[  357.217189]  do_idle+0x5f/0xe0
[  357.217191]  cpu_startup_entry+0x14/0x20
[  357.217193]  start_kernel+0x443/0x464
[  357.217196]  secondary_startup_64+0xa4/0xb0

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Wen Gong <wgong@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1601399736-3210-8-git-send-email-kvalo@codeaurora.org
2020-10-01 22:31:09 +03:00
Kalle Valo 568f06036e ath11k: debugfs: move some function declarations to correct header files
Some of the function declarations are for functions in debugfs_htt_stats.c and
debugfs_sta.c, move them to corresponding header files. As debugfs_sta.h didn't
exist create it.

Also in debugfs_htt_stats.h move dunction declarations to the end of the file.

No functional changes. Compile tested only.

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1600264523-12939-4-git-send-email-kvalo@codeaurora.org
2020-09-22 10:41:49 +03:00
Kalle Valo cb4e57db2f ath11k: debugfs: use ath11k_debugfs_ prefix
As these functions are now defined in debugfs.c change the prefix to use
ath11k_debugfs_ as well.

No functional changes. Compile tested only.

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1600264523-12939-2-git-send-email-kvalo@codeaurora.org
2020-09-22 10:41:44 +03:00
Venkateswara Naralasetty aa2092a9ba ath11k: add raw mode and software crypto support
Adding raw mode tx/rx support. Also, adding support
for software crypto which depends on raw mode.

To enable raw mode tx/rx:
insmod ath11k.ko frame_mode=0

To enable software crypto:
insmod ath11k.ko crypto_mode=1

These modes could be helpful in debugging crypto related issues.

Tested-on: IPQ8074 WLAN.HK.2.1.0.1-01228-QCAHKSWPL_SILICONZ-1

Signed-off-by: Manikanta Pubbisetty <mpubbise@codeaurora.org>
Signed-off-by: Venkateswara Naralasetty <vnaralas@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/010101746c6a52d9-18302a2c-0d6d-4057-aa4b-95960c809646-000000@us-west-2.amazonses.com
2020-09-11 12:56:50 +03:00
Gustavo A. R. Silva 0b294aebb6 ath11k: Use fallthrough pseudo-keyword
Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200727194415.GA1275@embeddedor
2020-08-18 12:52:02 +03:00
Carl Huang a6275302c3 ath11k: assign correct search flag and type for QCA6390
QCA6390 doesn't enable V2 map and ummap event, so the addr search
flags and type is different from IPQ8074. Assign correct search flags
and type for QCA6390.

Without this change, ping sometimes fails. With this change, now ping
is always successful.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597555891-26112-7-git-send-email-kvalo@codeaurora.org
2020-08-18 12:47:01 +03:00
Carl Huang 4152e4206c ath11k: setup QCA6390 rings for both rxdmas
For QCA6390, only one pdev is created and this pdev manages both lmacs, thus
both rxdmas. So host needs to initialize all rxdma related rings for one pdev.

Another difference is for QCA6390, host fills rxbuf to firmware and firmware
further fills the rxbuf to rxbuf ring for each rxdma.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597555891-26112-4-git-send-email-kvalo@codeaurora.org
2020-08-18 12:46:52 +03:00
Carl Huang 7f6fc1ebf5 ath11k: don't initialize rxdma1 related ring
For QCA6390, it has 2 lmacs and thus 2 rxdmas. However, each rxdma has rxdma0
only, and doesn't have rxdma1. So for QCA6390, don't initialize rxdma1 related
rings such as rx_mon_buf_ring, rx_mon_dst_ring and rx_mon_desc_ring.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597555891-26112-3-git-send-email-kvalo@codeaurora.org
2020-08-18 12:46:50 +03:00
Carl Huang 13ecd81fba ath11k: dp: redefine peer_map and peer_unmap
For QCA6390, it uses peer_map and peer_unmap V1. IPQ8074 uses V2.
Redefine previous definition to peer_map2 and peer_unmap2.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597576599-8857-13-git-send-email-kvalo@codeaurora.org
2020-08-18 12:44:48 +03:00
Kalle Valo f7eb4b04ce ath11k: hal: create hw_srng_config dynamically
On QCA6390 reg_start and reg_size values are different from IPQ8074 so we need
to change the values runtime. As we can't modify a static const variable
hw_srng_config directly, instead use it as a template, copy it and modify the
copy with correct values.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597389030-13887-12-git-send-email-kvalo@codeaurora.org
2020-08-17 13:18:38 +03:00
Anilkumar Kolli b1cc29e97d ath11k: define max_radios in hw_params
IPQ6018 needs different value for max_radios so make it configurable via hw_params.

No functional changes. Compile tested only.

Signed-off-by: Anilkumar Kolli <akolli@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1592316055-24958-4-git-send-email-kvalo@codeaurora.org
2020-06-23 10:51:40 +03:00
Sriram R 71fbc84797 ath11k: Add support for ring backpressure stats
Add support for collecting and dumping the ring backpressure
stats via debugfs. Stats are dumped only if events are
received for the specific ring.

Below command can be used to obtain these stats as part of soc dp stats.
cat /sys/kernel/debug/ath11k/ipq8074/soc_dp_stats

 Sample Output - When No stats available:

 Backpressure Stats
 ==================
 No Ring Backpressure stats received

 Sample Output -  When ring bp stats available for specific ring

 Backpressure Stats
 ==================
 Ring: REO2SW1_RING
 count: 1
 hp: 2
 tp: 2
 seen before: 4ms

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01213-QCAHKSWPL_SILICONZ-1

Signed-off-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1591768308-32005-3-git-send-email-srirrama@codeaurora.org
2020-06-15 17:33:12 +03:00
Sowmiya Sree Elavalagan 8cacd0389c ath11k: removing redundant reo unlock followed by immediate lock
Removed reo cmd lock and unlock which was acquiring the lock immediately
after unlock. Done for code clean up.

Signed-off-by: Sowmiya Sree Elavalagan <ssreeela@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1591713432-26426-1-git-send-email-ssreeela@codeaurora.org
2020-06-15 17:29:23 +03:00
Pradeep Kumar Chitrapu 5dcf42f8b7 ath11k: Use freq instead of channel number in rx path
As 6GHz cahnnel numbers overlap with those of 5GHz and 2GHz bands,
it is necessary to use frequency when determining the band info
in rx path.

Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200603001724.12161-4-pradeepc@codeaurora.org
2020-06-11 08:05:09 +03:00
Miles Hu 32a2be499c ath11k: remove stale monitor status descriptor
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
2020-05-11 15:27:12 +03:00
Tamizh Chelvam d7d43782d5 ath11k: fix kernel panic by freeing the msdu received with invalid length
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
2020-05-06 09:16:10 +03:00
Jason Yan b7b527b9c7 ath11k: use true,false for bool variables
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
2020-05-05 10:37:22 +03:00
Wei Yongjun 69c93f9674 ath11k: use GFP_ATOMIC under spin lock
A spin lock is taken here so we should use GFP_ATOMIC.

Fixes: d5c65159f2 ("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
2020-04-28 12:13:18 +03:00
Karthikeyan Periyasamy 5cb899dd5b ath11k: fix reo flush send
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
2020-04-27 07:52:59 +03:00
Jason Yan 8af40902f8 ath11k: remove conversion to bool in ath11k_dp_rxdesc_mpdu_valid()
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
2020-04-22 09:40:45 +03:00
Manikanta Pubbisetty 7395fb4965 ath11k: rx path optimizations
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
2020-04-14 11:34:02 +03:00
Maharaja Kennadyrajan 21c1b063f4 ath11k: add pktlog checksum in trace events to support pktlog
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
2020-04-06 19:15:50 +03:00
Sriram R acc79d981c ath11k: Perform per-msdu rx processing
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>
2020-03-18 13:53:49 +02:00
Venkateswara Naralasetty de06b2f751 ath11k: fill channel info from rx channel
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>
2020-03-18 13:46:43 +02:00
Sriram R 678e8414bf ath11k: Supporting RX ring backpressure HTT event and stats handling
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>
2020-03-18 13:43:54 +02:00
Manikanta Pubbisetty 1441b2f205 ath11k: enable PN offload
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>
2020-03-17 08:35:42 +02:00
Manikanta Pubbisetty 243874c64c ath11k: handle RX fragments
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>
2020-03-17 08:35:30 +02:00
Govindaraj Saminathan a36adf54cb ath11k: config reorder queue for all tids during peer setup
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>
2020-03-11 18:43:43 +02:00
Anilkumar Kolli 443d2ee758 ath11k: fix parsing PPDU_CTRL type in pktlog
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>
2020-02-11 20:33:34 +02:00
John Crispin 6a0c370259 ath11k: add HE rate accounting to driver
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>
2020-02-11 20:28:33 +02:00
John Crispin be43ce646b ath11k: drop tx_info from ath11k_sta
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>
2020-02-11 20:28:21 +02:00
John Crispin 93634c6105 ath11k: make sure to also report the RX bandwidth inside radiotap
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>
2020-01-26 12:49:40 +02:00
Dan Carpenter 269663f184 ath11k: remove an unneeded NULL check
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>
2019-12-18 19:56:26 +02:00
Vasanthakumar Thiagarajan 9c57d7e3b4 ath11k: Setup REO destination ring before sending wmi_init command
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>
2019-11-29 09:50:48 +02:00
Venkateswara Naralasetty b9269a078a ath11k: Skip update peer stats for management packets
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>
2019-11-29 09:50:27 +02:00
Venkateswara Naralasetty a9e945eadf ath11k: update tx duration in station info
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>
2019-11-29 09:50:16 +02:00
Miles Hu 5e02bc7354 ath11k: fix memory leak in monitor mode
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>
2019-11-29 09:49:55 +02:00
Venkateswara Naralasetty fe201947f8 ath11k: update bawindow size in delba process
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>
2019-11-29 09:47:47 +02:00
Karthikeyan Periyasamy 30679ec409 ath11k: avoid use_after_free in ath11k_dp_rx_msdu_coalesce API
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>
2019-11-29 09:47:37 +02:00
Anilkumar Kolli d0f390eae0 ath11k: pktlog: fix sending/using the pdev id
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>
2019-11-29 09:47:16 +02:00
Sriram R d2f510fa01 ath11k: Fix skb_panic observed during msdu coalescing
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>
2019-11-29 09:35:58 +02:00
John Crispin 293cb58397 ath11k: optimize RX path latency
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>
2019-11-29 09:35:26 +02:00
Anilkumar Kolli 0f37fbf43c ath11k: update tcl cmd descriptor parameters for STA mode
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>
2019-11-29 09:35:15 +02:00
Tamizh chelvam 33782a3c37 ath11k: Remove dead code while handling amsdu packets
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>
2019-11-27 17:46:18 +02:00
Tamizh chelvam 39e81c6a29 ath11k: fix missed bw conversion in tx completion
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>
2019-11-27 17:46:08 +02:00
John Crispin 2dab7d221e ath11k: convert message from info to dbg
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>
2019-11-27 17:45:57 +02:00
John Crispin e4eb7b5c33 ath11k: add RX stats support for radiotap
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>
2019-11-27 17:45:35 +02:00
Kalle Valo d5c65159f2 ath11k: driver for Qualcomm IEEE 802.11ax devices
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>
2019-11-25 14:16:34 +02:00