Commit Graph

1368797 Commits

Author SHA1 Message Date
Sivashankari Madhavan
979c5ce4a3 wifi: ath12k: support average ack rssi in station dump
Currently, the ACK RSSI value is not shown in station dump. Enable WMI
resource flag for ACK RSSI in WMI INIT command to add ACK RSSI value in
management TX completion event from WMI. Update ACK RSSI value obtained
in management and data frame completion path to ieee80211_tx_info. Also
advertise NL80211_EXT_FEATURE_ACK_SIGNAL_SUPPORT flag during hardware
register to mac80211 layer so that ACK RSSI is added to station dump
message.

Example output :
Station aa:bb:cc:dd:ee:ff (on wlp88s0)
        inactive time:  46584 ms
        rx bytes:       955
        rx packets:     10
        tx bytes:       769
        tx packets:     6
        tx retries:     81
        tx failed:      0
        rx drop misc:   0
        signal:         -39 dBm
        signal avg:     -40 dBm
        tx bitrate:     6.0 MBit/s
        tx duration:    1185 us
        rx bitrate:     309.7 MBit/s 40MHz HE-MCS 6 HE-NSS 2 HE-GI 0 HE-DCM 0
        rx duration:    0 us
        last ack signal:-41 dBm
        avg ack signal: -40 dBm
        authorized:     yes
        authenticated:  yes
        .......

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Signed-off-by: Sivashankari Madhavan <quic_sivamadh@quicinc.com>
Signed-off-by: Sowmiya Sree Elavalagan <quic_ssreeela@quicinc.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250709133554.622463-1-quic_ssreeela@quicinc.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-07-11 09:33:33 -07:00
Karthikeyan Kathirvel
27ba973caa wifi: ath12k: allow beacon protection keys to be installed in hardware
Install beacon protection keys in hardware for AP modes only if hardware
supports it, as indicated by the WMI service bit
WMI_TLV_SERVICE_BEACON_PROTECTION_SUPPORT. Allow keyidx up to 7, since
beacon protection uses keyidx 6 and 7.

Control this feature by setting bit 0 of feature_enable_bitmap when sending
the WMI_BCN_TMPL_CMDID command to firmware.

Check for the beacon protection enabled bit in both tx and non-tx profiles
for MBSSID cases. If set in either profile, enable the beacon protection
feature in firmware for transmitted vif.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1

Signed-off-by: Karthikeyan Kathirvel <karthikeyan.kathirvel@oss.qualcomm.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250604101620.2948103-1-karthikeyan.kathirvel@oss.qualcomm.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-07-10 07:29:45 -07:00
P Praneesh
0424cc3d70 wifi: ath12k: set RX_FLAG_SKIP_MONITOR in WBM error path
Packets delivered to mac80211 from the WBM error path currently do not
have the RX_FLAG_SKIP_MONITOR flag set in status->flag. As a result,
mac80211 performs unnecessary monitor mode checks on each packet, even
though these packets are not intended for monitor mode processing.
In regular rx path, this flag is explicitly set to avoid such overhead.
Align the WBM error path behavior by setting RX_FLAG_SKIP_MONITOR to
prevent redundant per-packet checks in mac80211.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Signed-off-by: P Praneesh <praneesh.p@oss.qualcomm.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250605050135.1802902-1-praneesh.p@oss.qualcomm.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-07-10 07:29:44 -07:00
Jeff Johnson
fee9b1f669 wifi: ath12k: pack HTT pdev rate stats structs
In order to ensure the HTT DebugFS structs shared with firmware have
matching alignment, the structs should be packed. Most of the structs
are correctly packed, however the following are not:

ath12k_htt_tx_pdev_rate_stats_tlv
ath12k_htt_rx_pdev_rate_stats_tlv
ath12k_htt_rx_pdev_rate_ext_stats_tlv

So pack those structs.

Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c5-00284-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Fixes: ba42b22aa3 ("wifi: ath12k: Dump PDEV transmit rate HTT stats")
Fixes: a24cd75830 ("wifi: ath12k: Dump PDEV receive rate HTT stats")
Fixes: 7a3e8eec8d ("wifi: ath12k: Dump additional PDEV receive rate HTT stats")
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250702-debugfs_htt_packed-v1-1-07bd18b31e79@oss.qualcomm.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-07-10 07:29:44 -07:00
Harshitha Prem
2109e98503 wifi: ath12k: update unsupported bandwidth flags in reg rules
The maximum bandwidth an interface can operate in is defined by the
configured country. However, currently, it is able to operate in
bandwidths greater than the allowed bandwidth. For example,
the Central African Republic (CF) supports a maximum bandwidth of 40 MHz
in both the 2 GHz and 5 GHz bands, but an interface is still able to
operate in bandwidths higher than 40 MHz. This issue arises because the
regulatory rules in the regd are not updated with these restrictions
received from firmware on the maximum bandwidth.

Hence, update the regulatory rules with unsupported bandwidth flags based
on the maximum bandwidth to ensure compliance with country-specific
regulations.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c5-00284-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Fixes: d889913205 ("wifi: ath12k: driver for Qualcomm Wi-Fi 7 devices")
Signed-off-by: Harshitha Prem <quic_hprem@quicinc.com>
Signed-off-by: Amith A <quic_amitajit@quicinc.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250701135902.722851-1-quic_amitajit@quicinc.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-07-10 07:29:44 -07:00
Aditya Kumar Singh
a1bff3d6cc wifi: ath12k: Add num_stations counter for each interface
Currently, ath12k driver maintains a counter to store the number of
stations connected to each radio. However, at certain times like
debugging, it is useful to know number of stations connected to any
one of the interface in that radio.

Add support to maintain a counter for number of stations connected to
each interface.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Signed-off-by: Aditya Kumar Singh <aditya.kumar.singh@oss.qualcomm.com>
Signed-off-by: Roopni Devanathan <quic_rdevanat@quicinc.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250630044531.3490058-1-quic_rdevanat@quicinc.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-07-07 15:34:49 -07:00
Sarika Sharma
acab697c32 wifi: ath12k: properly set bit for pdev mask for firmware PPDU_STATS request
Currently, the HTT_H2T_MSG_TYPE_PPDU_STATS_CFG request uses bits
8 to 15 as the bitmask for HTT_PPDU_STATS_CFG_PDEV_ID for firmware
PPDU_STATS. However, bit 8 is reserved for SOC stats, and the actual
PDEV ID should be encoded using bits 9 to 15. This leads to incorrect
PDEV ID encoding in the request, causing it to either ignore the
request or apply it to the wrong PDEV.

Additionally, pdev_mask calculation is done as
pdev_mask = 1 << (i + 1); (i.e. i= num_rxmda_per_pdev)
but this is not valid for multiple pdevs(multi-MAC configurations)
with 1 rxdma per pdev, as this will mask the same value for all pdevs.
To correctly identify each and exact MAC in multi-MAC configurations,
the calculation should include ar->pdev_idx:
pdev_mask = 1 << i + ar->pdev_idx;

Due to these issues, the firmware does not send PPDU_STATS for the
intended PDEV, leading to inaccurate and incomplete statistics on the
host. This might trigger certain WARN_ON() conditions in host that
rely on these statistics.

Hence, change the bitmask for HTT_PPDU_STATS_CFG_PDEV_ID as bit 9
to 15 to properly fill the pdev id in request message and change
the pdev_mask calculation to consider ar->pdev_idx to mask pdev
correctly.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1

Signed-off-by: Sarika Sharma <quic_sarishar@quicinc.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250630064431.3446333-1-quic_sarishar@quicinc.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-07-07 15:34:49 -07:00
Aaradhana Sahu
80570587e4 wifi: ath12k: Block radio bring-up in FTM mode
Ensure that all radios remain down when the driver operates in Factory
Test Mode (FTM). Reject any userspace attempts to bring up an
interface in this mode.

Currently, the driver allows userspace to bring up the interface even
though it operates in FTM mode, which violates FTM constraints and
leads to FTM command failures.

Hence, block the radio start when the driver is in FTM mode. Also,
remove ath12k_ftm_mode check from ath12k_drain_tx() because FTM mode
check is already handled in the caller function
(ath12k_mac_op_start()).

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Fixes: 3bc374cbc4 ("wifi: ath12k: add factory test mode support")
Signed-off-by: Aaradhana Sahu <aaradhana.sahu@oss.qualcomm.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250630031502.8902-1-aaradhana.sahu@oss.qualcomm.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-07-07 15:34:49 -07:00
Aditya Kumar Singh
93a1cdb9cd wifi: ath12k: advertise NL80211_FEATURE_TX_POWER_INSERTION support
Now that driver is capable of inserting Tx power, advertise the support
for the same to upper layers.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1

Signed-off-by: Aditya Kumar Singh <aditya.kumar.singh@oss.qualcomm.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250630-support-for-tx-power-insertion-v1-2-77f45484d5bb@oss.qualcomm.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-07-07 15:34:49 -07:00
Aditya Kumar Singh
d45d015448 wifi: ath12k: add support for Tx Power insertion in RRM action frame
For certain action frames like the TPC Report IE in the spectrum management
TPC Report action frame, and in the Radio Measurement Link Measurement
Report action frame there is a requirement to fill in the current
and max Tx power of the device in the packet.

Add support to populate these fields in the relevant packets.

In software-encrypted cases such as PMF, skip insertion since the packets
are already encrypted and cannot be modified.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1

Signed-off-by: Aditya Kumar Singh <aditya.kumar.singh@oss.qualcomm.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250630-support-for-tx-power-insertion-v1-1-77f45484d5bb@oss.qualcomm.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-07-07 15:34:49 -07:00
Sarika Sharma
a0b963e1da wifi: ath12k: fetch tx_retry and tx_failed from htt_ppdu_stats_user_cmpltn_common_tlv
Currently, tx_retries and tx_failed are updated only in mac80211 during
tx_completion path for sta->deflink. This works fine for non-ML
station but for multi-link (ML) station, these values should be updated
for sta->link[link_id] as per tx link_id. However, in tx_completion path
there is no way to determine the link_id for which packet is retried or
failed.

Therefore, update the tx_retries and tx_failed in arsta structure from
htt_ppdu_stats_user_cmpltn_common_tlv during
ath12k_update_per_peer_tx_stats() call to utilize the values from arsta.
Also, during 'iw dev xxxx station dump' populate the tx_retries and
tx_failed in station_info structure to ensure values are correctly
reflected.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1

Signed-off-by: Sarika Sharma <quic_sarishar@quicinc.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250701105927.803342-6-quic_sarishar@quicinc.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-07-07 15:34:49 -07:00
Sarika Sharma
e0618fca1a wifi: ath12k: correctly update bw for ofdma packets
Currently, arsta->txrate.bw is filled from ath12k_mac_bw_to_mac80211_bw(bw)
during ath12k_update_per_peer_tx_stats(). But in tx_completion path bw
is filled differently if ppdu_type is ofdma for HE/EHT rates.

Hence, update arsta->txrate.bw correctly if packet is ofdma for HE
and EHT rate.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1

Signed-off-by: Sarika Sharma <quic_sarishar@quicinc.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250701105927.803342-5-quic_sarishar@quicinc.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-07-07 15:34:49 -07:00
Sarika Sharma
ebde0514b4 wifi: ath12k: add EHT support for TX rate
Currently, TX rates are not supported for EHT. Hence, add EHT
handling for TX rates and update the EHT-specific fields in arsta
accordingly.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1

Signed-off-by: Sarika Sharma <quic_sarishar@quicinc.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250701105927.803342-4-quic_sarishar@quicinc.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-07-07 15:34:48 -07:00
Sarika Sharma
3b8aa249d0 wifi: ath12k: add link support for multi-link in arsta
Currently, statistics in arsta are updated at deflink for both non-ML
and multi-link(ML) station. Link statistics are not updated for
multi-link operation(MLO).

Hence, add support to correctly obtain the link ID if the peer is ML,
fetch the arsta from the appropriate link ID, and update the
statistics in the corresponding arsta.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1

Signed-off-by: Sarika Sharma <quic_sarishar@quicinc.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250701105927.803342-3-quic_sarishar@quicinc.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-07-07 15:34:48 -07:00
Sarika Sharma
ebebe66ec2 wifi: ath12k: fill link station statistics for MLO
Introduce ath12k_mac_op_link_sta_statistics(), to report link level
station statistics for MLO. The link_station_info structure is filled
from arsta and arsta is fetch from corresponding ahsta->link[link_id].

Therefore, this will be helpful to check the link related statistics.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1

Signed-off-by: Sarika Sharma <quic_sarishar@quicinc.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250701105927.803342-2-quic_sarishar@quicinc.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-07-07 15:34:48 -07:00
Pradeep Kumar Chitrapu
a82ce08775 wifi: ath12k: add extended NSS bandwidth support for 160 MHz
Currently rx and tx MCS map for 160 MHz under HE capabilities
are not updating properly, when 160 MHz is configured with NSS
lesser than max NSS support. Fix this by utilizing
nss_ratio_enabled and nss_ratio_info fields sent by firmware
in service ready event.

However, if firmware advertises EXT NSS BW support in VHT caps
as 1(1x2) and when nss_ratio_info indicates 1:1, reset the EXT
NSS BW Support in VHT caps to 0 which indicates 1x1. This is
to avoid incorrectly choosing 1:2 NSS ratio when using the
default VHT caps advertised by firmware.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1

Signed-off-by: Pradeep Kumar Chitrapu <quic_pradeepc@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://patch.msgid.link/20250701010408.1257201-10-quic_pradeepc@quicinc.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-07-02 07:02:26 -07:00
Pradeep Kumar Chitrapu
18ab9d038f wifi: ath12k: add support for 160 MHz bandwidth
Add support to configure maximum NSS in 160 MHz bandwidth.
Firmware advertises support for handling NSS ratio information
as a part of service ready ext event using nss_ratio_enabled
flag. Save this information in ath12k_pdev_cap to calculate
NSS ratio.

Additionally, reorder the code by moving
ath12k_peer_assoc_h_phymode() before ath12k_peer_assoc_h_vht()
to ensure that arg->peer_phymode correctly reflects the bandwidth
in the max NSS calculation.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1

Co-developed-by: P Praneesh <quic_ppranees@quicinc.com>
Signed-off-by: P Praneesh <quic_ppranees@quicinc.com>
Signed-off-by: Pradeep Kumar Chitrapu <quic_pradeepc@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://patch.msgid.link/20250701010408.1257201-9-quic_pradeepc@quicinc.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-07-02 07:02:26 -07:00
Pradeep Kumar Chitrapu
dd25a004fb wifi: ath12k: clean up 80P80 support
Clean up unused 80P80 references as hardware does not support
it. This is applicable to both QCN9274 and WCN7850.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1

Signed-off-by: Pradeep Kumar Chitrapu <quic_pradeepc@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://patch.msgid.link/20250701010408.1257201-8-quic_pradeepc@quicinc.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-07-02 07:02:26 -07:00
Pradeep Kumar Chitrapu
9ad6b169dd wifi: ath12k: add support for setting fixed HE rate/GI/LTF
Add support to set fixed HE rate/GI/LTF values using nl80211.
Reuse parts of the existing code path already used for HT/VHT
to implement the new helpers symmetrically, similar to how
HT/VHT is handled.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1

Co-developed-by: Muna Sinada <quic_msinada@quicinc.com>
Signed-off-by: Muna Sinada <quic_msinada@quicinc.com>
Signed-off-by: Pradeep Kumar Chitrapu <quic_pradeepc@quicinc.com>
Link: https://patch.msgid.link/20250701010408.1257201-7-quic_pradeepc@quicinc.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-07-02 07:02:26 -07:00
Pradeep Kumar Chitrapu
5ab7479a06 wifi: ath12k: generate rx and tx mcs maps for supported HE mcs
Generate rx and tx mcs maps in ath12k_mac_set_hemcsmap() based
on number of supported tx/rx chains and set them in supported
mcs/nss for HE capabilities.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1

Co-developed-by: Muna Sinada <quic_msinada@quicinc.com>
Signed-off-by: Muna Sinada <quic_msinada@quicinc.com>
Signed-off-by: Pradeep Kumar Chitrapu <quic_pradeepc@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://patch.msgid.link/20250701010408.1257201-5-quic_pradeepc@quicinc.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-07-02 07:02:26 -07:00
Pradeep Kumar Chitrapu
1eafb8d15d wifi: ath12k: move HE MCS mapper to a separate function
Refactor the HE MCS mapper functionality in
ath12k_mac_copy_he_cap() into a new function.

This helps improve readability, extensibility and will be used
when adding support for 160 MHz bandwidth in subsequent patches.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1

Co-developed-by: Muna Sinada <quic_msinada@quicinc.com>
Signed-off-by: Muna Sinada <quic_msinada@quicinc.com>
Signed-off-by: Pradeep Kumar Chitrapu <quic_pradeepc@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://patch.msgid.link/20250701010408.1257201-4-quic_pradeepc@quicinc.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-07-02 07:02:25 -07:00
Pradeep Kumar Chitrapu
df8207bc0b wifi: ath12k: push EHT MU-MIMO params to hardware
Currently, only the EHT IE in management frames is updated with
respect to MU-MIMO configurations, but this change is not
reflected in the hardware. Add support to propagate MU-MIMO
configurations to the hardware as well for AP mode. Similar
support for STA mode will be added in future.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1

Co-developed-by: Muna Sinada <quic_msinada@quicinc.com>
Signed-off-by: Muna Sinada <quic_msinada@quicinc.com>
Signed-off-by: Pradeep Kumar Chitrapu <quic_pradeepc@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://patch.msgid.link/20250701010408.1257201-3-quic_pradeepc@quicinc.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-07-02 07:02:25 -07:00
Pradeep Kumar Chitrapu
5d6707e88e wifi: ath12k: push HE MU-MIMO params to hardware
Currently, only the HE IE in management frames is updated with
respect to MU-MIMO configurations, but this change is not
reflected in the hardware. Add support to propagate MU-MIMO
configurations to the hardware as well.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1

Co-developed-by: Muna Sinada <quic_msinada@quicinc.com>
Signed-off-by: Muna Sinada <quic_msinada@quicinc.com>
Signed-off-by: Pradeep Kumar Chitrapu <quic_pradeepc@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://patch.msgid.link/20250701010408.1257201-2-quic_pradeepc@quicinc.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-07-02 07:02:25 -07:00
Kang Yang
c256a94d1b wifi: ath10k: shutdown driver when hardware is unreliable
In rare cases, ath10k may lose connection with the PCIe bus due to
some unknown reasons, which could further lead to system crashes during
resuming due to watchdog timeout:

ath10k_pci 0000:01:00.0: wmi command 20486 timeout, restarting hardware
ath10k_pci 0000:01:00.0: already restarting
ath10k_pci 0000:01:00.0: failed to stop WMI vdev 0: -11
ath10k_pci 0000:01:00.0: failed to stop vdev 0: -11
ieee80211 phy0: PM: **** DPM device timeout ****
Call Trace:
 panic+0x125/0x315
 dpm_watchdog_set+0x54/0x54
 dpm_watchdog_handler+0x57/0x57
 call_timer_fn+0x31/0x13c

At this point, all WMI commands will timeout and attempt to restart
device. So set a threshold for consecutive restart failures. If the
threshold is exceeded, consider the hardware is unreliable and all
ath10k operations should be skipped to avoid system crash.

fail_cont_count and pending_recovery are atomic variables, and
do not involve complex conditional logic. Therefore, even if recovery
check and reconfig complete are executed concurrently, the recovery
mechanism will not be broken.

Tested-on: QCA6174 hw3.2 PCI WLAN.RM.4.4.1-00288-QCARMSWPZ-1

Signed-off-by: Kang Yang <kang.yang@oss.qualcomm.com>
Reviewed-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Link: https://patch.msgid.link/20250623022731.509-1-kang.yang@oss.qualcomm.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-06-30 08:45:50 -07:00
Aditya Kumar Singh
6e17bbb5a8 wifi: ath12k: fix timeout while waiting for regulatory update during interface creation
During interface creation, following print is observed on the console -

  Timeout while waiting for regulatory update

This occurs due to commit 906619a009 ("wifi: ath12k: handle regulatory
hints during mac registration"), which introduced a completion mechanism to
synchronize the regulatory update process. The intent behind this change is
to coordinate the timing between when the firmware sends regulatory data to
the driver and when the driver processes that data.

However, during interface addition, if the 6 GHz band is active, the driver
invokes ath12k_regd_update() to apply the appropriate 6 GHz power mode
regulatory settings. At this point, there is no interaction with the
firmware, so the completion object is not reinitialized. As a result,
wait_for_completion() eventually times out, leading to the observed error
log message.

Hence to fix this, move all complete() on regd_update_completed to
complete_all().

The complete() function signals only once, causing any subsequent waits
without reinitialization to timeout. In this scenario, since waiting is
unnecessary, complete_all() can be used instead, ensuring that subsequent
calls to wait without reinitialization will simply bail out and not
actually wait. This approach is ideal because if the firmware is not
involved, there is no need to wait for the completion event. However, if
the firmware is involved, it is guaranteed that the completion will be
reinitialized, and thus, it would wait.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.5-01651-QCAHKSWPL_SILICONZ-1
Tested-by: Kang Yang <kang.yang@oss.qualcomm.com>
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Fixes: 906619a009 ("wifi: ath12k: handle regulatory hints during mac registration")
Signed-off-by: Aditya Kumar Singh <aditya.kumar.singh@oss.qualcomm.com>
Link: https://patch.msgid.link/20250626-fix_timeout_during_interface_creation-v1-1-90a7fdc222d4@oss.qualcomm.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-06-27 13:34:55 -07:00
Sumanth Gavini
cb6dcabdfd wifi: ath6kl: Fix spellings
Fix misspelling reported by codespell.

Signed-off-by: Sumanth Gavini <sumanth.gavini@yahoo.com>
Link: https://patch.msgid.link/20250522205701.393612-1-sumanth.gavini@yahoo.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-06-27 07:42:45 -07:00
Sumanth Gavini
20870fb0a3 wifi: ath10k: Fix Spelling
Fix "trasmitting" to "transmitting"

Signed-off-by: Sumanth Gavini <sumanth.gavini@yahoo.com>
Link: https://patch.msgid.link/20250521055411.288724-1-sumanth.gavini@yahoo.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-06-27 07:42:45 -07:00
Sumanth Gavini
ed259ae54d wifi: wil6210: wmi: Fix spellings reported by codespell
Fix "busses" to "buses"
Fix "Measurments" to "Measurements"

Signed-off-by: Sumanth Gavini <sumanth.gavini@yahoo.com>
Link: https://patch.msgid.link/20250521053323.284845-1-sumanth.gavini@yahoo.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-06-27 07:42:45 -07:00
Maharaja Kennadyrajan
81a0286cef wifi: ath12k: Add support to RTT stats
Add support to request RTT stats from firmware through HTT stats type 65
and 66. HTT stats type 65 support RTT response stats, RTT hardware stats,
RTT to-be-read self-generated stats and RTT command-result stats and HTT
stats type 66 support RTT initiator stats and RTT hardware stats. These
stats give information about number of scheduled commands, responder
allocation and termination count, initiator termination count, PASN
authentication drop and receive counts, etc.

Note: WCN firmware version -
WLAN.HMT.1.1.c5-00284.1-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3 does not support
tags HTT_STATS_PDEV_RTT_RESP_STATS_TAG(194),
HTT_STATS_PDEV_RTT_INIT_STATS_TAG(195),
HTT_STATS_PDEV_RTT_HW_STATS_TAG(196),
HTT_STATS_PDEV_RTT_TBR_SELFGEN_QUEUED_STATS_TAG(197) and
HTT_STATS_PDEV_RTT_TBR_CMD_RESULT_STATS_TAG(198), currently.

Sample output:
echo 65 > /sys/kernel/debug/ath12k/pci-0000\:58\:00.0/mac0/htt_stats_type
cat /sys/kernel/debug/ath12k/pci-0000\:58\:00.0/mac0/htt_stats
HTT_PDEV_RTT_RESP_STATS_TLV:
pdev_id = 0
tx_11mc_ftm_suc = 0
tx_11mc_ftm_suc_retry = 0
tx_11mc_ftm_fail = 0
.....

HTT_STATS_PDEV_RTT_HW_STATS_TAG:
ista_ranging_ndpa_cnt = 0
ista_ranging_ndp_cnt = 0
ista_ranging_i2r_lmr_cnt = 0
rtsa_ranging_resp_cnt = 0
.....

HTT_STATS_PDEV_RTT_TBR_SELFGEN_QUEUED_STATS_TAG:
SU poll = 0
SU sound = 0
.....
MU poll = 0
MU sound = 0
.....

HTT_STATS_PDEV_RTT_TBR_CMD_RESULT_STATS_TAG:
num_sch_cmd_status_0:
SU frame_SGEN_TF_POLL = 0
SU frame_SGEN_TF_SOUND = 0
SU frame_SGEN_TBR_NDPA = 0
SU frame_SGEN_TBR_NDP = 0
SU frame_SGEN_TBR_LMR = 0
SU frame_SGEN_TF_REPORT = 0
MU frame_SGEN_TF_POLL = 0
.....

echo 66 > /sys/kernel/debug/ath12k/pci-0000\:58\:00.0/mac0/htt_stats_type
cat /sys/kernel/debug/ath12k/pci-0000\:58\:00.0/mac0/htt_stats
HTT_PDEV_RTT_INIT_STATS_TLV:
pdev_id = 0
tx_11mc_ftmr_cnt = 0
tx_11mc_ftmr_fail = 0
tx_11mc_ftmr_suc_retry = 0
rx_11mc_ftm_cnt = 0
rx_11az_ftm_cnt = 0
.....

HTT_STATS_PDEV_RTT_HW_STATS_TAG:
ista_ranging_ndpa_cnt = 0
ista_ranging_ndp_cnt = 0
ista_ranging_i2r_lmr_cnt = 0
rtsa_ranging_resp_cnt = 0
rtsa_ranging_ndp_cnt = 0
rsta_ranging_lmr_cnt = 0
.....

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1

Signed-off-by: Maharaja Kennadyrajan <quic_mkenna@quicinc.com>
Signed-off-by: Roopni Devanathan <quic_rdevanat@quicinc.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250617051136.264193-3-quic_rdevanat@quicinc.com
[rename enum ath12k_htt_stats_txsend_ftype_t]
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-06-26 16:10:49 -07:00
Maharaja Kennadyrajan
a7f74e782e wifi: ath12k: Add support to TDMA and MLO stats
Add support to request TDMA stats, MLO scheduled stats and MLO IPC stats
from firmware through HTT stats type 57, 63 and 64, respectively. These
stats give information about TDMA schedules, TDMA slot switches, MLO
preferred timeout, delay, MLO IPC ring count, etc.

Note: WCN firmware version -
WLAN.HMT.1.1.c5-00284.1-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3 does not support
tags HTT_STATS_PDEV_TDMA_TAG(187), HTT_STATS_MLO_SCHED_STATS_TAG(190)
and HTT_STATS_PDEV_MLO_IPC_STATS_TAG(191), currently.

Sample output:
echo 57 > /sys/kernel/debug/ath12k/pci-0000\:58\:00.0/mac0/htt_stats_type
cat /sys/kernel/debug/ath12k/pci-0000\:58\:00.0/mac0/htt_stats
HTT_PDEV_TDMA_STATS_TLV:
mac_id = 0
num_tdma_active_schedules = 0
num_tdma_reserved_schedules = 0
num_tdma_restricted_schedules = 0
num_tdma_unconfigured_schedules = 0
num_tdma_slot_switches = 0
num_tdma_edca_switches = 0

echo 63 > /sys/kernel/debug/ath12k/pci-0000\:58\:00.0/mac0/htt_stats_type
cat /sys/kernel/debug/ath12k/pci-0000\:58\:00.0/mac0/htt_stats
HTT_STATS_MLO_SCHED_STATS:
num_sec_link_sched = 0
num_pref_link_timeout = 0
num_pref_link_sch_delay_ipc = 0
num_pref_link_timeout_ipc = 0

echo 64 > /sys/kernel/debug/ath12k/pci-0000\:58\:00.0/mac0/htt_stats_type
cat /sys/kernel/debug/ath12k/pci-0000\:58\:00.0/mac0/htt_stats
HTT_STATS_MLO_IPC_STATS:
src_link: 0
mlo_ipc_ring_full_cnt[0]: 0
mlo_ipc_ring_full_cnt[1]: 0
mlo_ipc_ring_full_cnt[2]: 0
mlo_ipc_ring_full_cnt[3]: 0
mlo_ipc_ring_full_cnt[4]: 0
mlo_ipc_ring_full_cnt[5]: 0
mlo_ipc_ring_full_cnt[6]: 0

src_link: 1
mlo_ipc_ring_full_cnt[0]: 0
mlo_ipc_ring_full_cnt[1]: 0
mlo_ipc_ring_full_cnt[2]: 0
mlo_ipc_ring_full_cnt[3]: 0
mlo_ipc_ring_full_cnt[4]: 0
mlo_ipc_ring_full_cnt[5]: 0
mlo_ipc_ring_full_cnt[6]: 0
.....

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1

Signed-off-by: Maharaja Kennadyrajan <quic_mkenna@quicinc.com>
Signed-off-by: Roopni Devanathan <quic_rdevanat@quicinc.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250617051136.264193-2-quic_rdevanat@quicinc.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-06-26 16:10:49 -07:00
Saleemuddin Shaik
ffc7adb0a1 wifi: ath12k: Add support for transmit histogram stats
Add support for transmit histogram stats under HTT stats type 9. These
stats give information about drop count, MCS drop rate, histogram
count, etc.

Note: WCN7850 firmware version -
WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3 does not support tag
HTT_STATS_TX_PDEV_HISTOGRAM_STATS_TAG(144), currently.

Sample output:
echo 9 > /sys/kernel/debug/ath12k/pci-0000\:58\:00.0/mac0/htt_stats_type
cat /sys/kernel/debug/ath12k/pci-0000\:58\:00.0/mac0/htt_stats
...
low_latency_rate_cnt =  0
su_burst_rate_drop_cnt = 0
su_burst_rate_drop_fail_cnt = 0
rate_retry_mcs_drop_cnt = 0

PER_HISTOGRAM_STATS
mcs_drop_rate =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0, 9:0, 10:0, 11:0, 12:0, 13:0, 14:0, 15:0
per_histogram_count =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0, 9:0, 10:0,
11:0, 12:0, 13:0, 14:0, 15:0, 16:0, 17:0, 18:0, 19:0, 20:0,
21:0, 22:0, 23:0, 24:0, 25:0, 26:0, 27:0, 28:0, 29:0, 30:0,
31:0, 32:0, 33:0, 34:0, 35:0, 36:0, 37:0, 38:0, 39:0, 40:0,
41:0, 42:0, 43:0, 44:0, 45:0, 46:0, 47:0, 48:0, 49:0, 50:0,
51:0, 52:0, 53:0, 54:0, 55:0, 56:0, 57:0, 58:0, 59:0, 60:0,
61:0, 62:0, 63:0, 64:0, 65:0, 66:0, 67:0, 68:0, 69:0, 70:0,
71:0, 72:0, 73:0, 74:0, 75:0, 76:0, 77:0, 78:0, 79:0, 80:0,
81:0, 82:0, 83:0, 84:0, 85:0, 86:0, 87:0, 88:0, 89:0, 90:0,
91:0, 92:0, 93:0, 94:0, 95:0, 96:0, 97:0, 98:0, 99:0, 100:0

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1

Signed-off-by: Saleemuddin Shaik <quic_saleemud@quicinc.com>
Signed-off-by: Roopni Devanathan <quic_rdevanat@quicinc.com>
Link: https://patch.msgid.link/20250617112139.865788-1-quic_rdevanat@quicinc.com
[add __packed to struct ath12k_htt_tx_histogram_stats_tlv]
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-06-26 16:10:49 -07:00
Thiraviyam Mariyappan
c27bb624b3 wifi: ath12k: Clear auth flag only for actual association in security mode
When setting a new bitrate, WMI peer association command is sent from
the host without the peer authentication bit set in peer_flags for
security mode, which causes ping failure.

The firmware handles peer_flags when the client is associating, as the
peer authentication bit in peer_flags is set after the key exchange.
When the WMI peer association command is sent from the host to update
the new bitrate for an associated STA, the firmware expects the WMI
peer authentication bit to be set in peer_flags.

Fix this issue by ensuring that the WMI peer auth bit is set in
peer_flags in WMI peer association command when updating the new
bitrate.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1

Fixes: d889913205 ("wifi: ath12k: driver for Qualcomm Wi-Fi 7 devices")
Signed-off-by: Thiraviyam Mariyappan <thiraviyam.mariyappan@oss.qualcomm.com>
Signed-off-by: Ramasamy Kaliappan <ramasamy.kaliappan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250608145651.1735236-1-ramasamy.kaliappan@oss.qualcomm.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-06-26 16:10:49 -07:00
Johan Hovold
ed32169be1 wifi: ath12k: fix dest ring-buffer corruption when ring is full
Add the missing memory barriers to make sure that destination ring
descriptors are read before updating the tail pointer (and passing
ownership to the device) to avoid memory corruption on weakly ordered
architectures like aarch64 when the ring is full.

Tested-on: WCN7850 hw2.0 WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Fixes: d889913205 ("wifi: ath12k: driver for Qualcomm Wi-Fi 7 devices")
Cc: stable@vger.kernel.org      # 6.3
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Baochen Qiang <quic_bqiang@quicinc.com>
Link: https://patch.msgid.link/20250617084402.14475-5-johan+linaro@kernel.org
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-06-26 16:10:49 -07:00
Johan Hovold
e834da4cbd wifi: ath12k: fix source ring-buffer corruption
Add the missing memory barrier to make sure that LMAC source ring
descriptors are written before updating the head pointer to avoid
passing stale data to the firmware on weakly ordered architectures like
aarch64.

Note that non-LMAC rings use MMIO write accessors which have the
required write memory barrier.

Tested-on: WCN7850 hw2.0 WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Fixes: d889913205 ("wifi: ath12k: driver for Qualcomm Wi-Fi 7 devices")
Cc: stable@vger.kernel.org      # 6.3
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Baochen Qiang <quic_bqiang@quicinc.com>
Link: https://patch.msgid.link/20250617084402.14475-4-johan+linaro@kernel.org
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-06-26 16:10:48 -07:00
Johan Hovold
79390f613d wifi: ath12k: use plain access for descriptor length
The read memory barrier added by commit 6b67d2cf14 ("wifi: ath12k: fix
ring-buffer corruption") is enough to guarantee ordering also for plain
descriptor accesses if the length helper is ever inlined so drop the
unnecessary READ_ONCE().

Tested-on: WCN7850 hw2.0 WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Baochen Qiang <quic_bqiang@quicinc.com>
Link: https://patch.msgid.link/20250617084402.14475-3-johan+linaro@kernel.org
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-06-26 16:10:48 -07:00
Johan Hovold
8157ce533a wifi: ath12k: fix dest ring-buffer corruption
Add the missing memory barrier to make sure that destination ring
descriptors are read after the head pointers to avoid using stale data
on weakly ordered architectures like aarch64.

The barrier is added to the ath12k_hal_srng_access_begin() helper for
symmetry with follow-on fixes for source ring buffer corruption which
will add barriers to ath12k_hal_srng_access_end().

Tested-on: WCN7850 hw2.0 WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Fixes: d889913205 ("wifi: ath12k: driver for Qualcomm Wi-Fi 7 devices")
Cc: stable@vger.kernel.org	# 6.3
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Baochen Qiang <quic_bqiang@quicinc.com>
Link: https://patch.msgid.link/20250617084402.14475-2-johan+linaro@kernel.org
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-06-26 16:10:48 -07:00
Johan Hovold
aa6956150f wifi: ath11k: fix dest ring-buffer corruption when ring is full
Add the missing memory barriers to make sure that destination ring
descriptors are read before updating the tail pointer (and passing
ownership to the device) to avoid memory corruption on weakly ordered
architectures like aarch64 when the ring is full.

Tested-on: WCN6855 hw2.1 WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.41

Fixes: d5c65159f2 ("ath11k: driver for Qualcomm IEEE 802.11ax devices")
Cc: stable@vger.kernel.org      # 5.6
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Baochen Qiang <quic_bqiang@quicinc.com>
Link: https://patch.msgid.link/20250604143457.26032-6-johan+linaro@kernel.org
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-06-26 16:10:48 -07:00
Johan Hovold
6efa0df540 wifi: ath11k: fix source ring-buffer corruption
Add the missing memory barrier to make sure that LMAC source ring
descriptors are written before updating the head pointer to avoid
passing stale data to the firmware on weakly ordered architectures like
aarch64.

Note that non-LMAC rings use MMIO write accessors which have the
required write memory barrier.

Tested-on: WCN6855 hw2.1 WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.41

Fixes: d5c65159f2 ("ath11k: driver for Qualcomm IEEE 802.11ax devices")
Cc: stable@vger.kernel.org      # 5.6
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Baochen Qiang <quic_bqiang@quicinc.com>
Link: https://patch.msgid.link/20250604143457.26032-5-johan+linaro@kernel.org
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-06-26 16:10:47 -07:00
Johan Hovold
4aba95fb1f wifi: ath11k: use plain accesses for monitor descriptor
The read memory barrier added by commit ab52e3e44f ("wifi: ath11k: fix
rx completion meta data corruption") is enough to guarantee ordering
also for plain descriptor accesses so drop the unnecessary READ_ONCE().

Tested-on: WCN6855 hw2.1 WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.41

Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Baochen Qiang <quic_bqiang@quicinc.com>
Link: https://patch.msgid.link/20250604143457.26032-4-johan+linaro@kernel.org
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-06-26 16:10:47 -07:00
Johan Hovold
3a690e9091 wifi: ath11k: use plain access for descriptor length
The read memory barrier added by commit 6d037a372f ("wifi: ath11k: fix
ring-buffer corruption") is enough to guarantee ordering also for plain
descriptor accesses if the length helper is ever inlined so drop the
unnecessary READ_ONCE().

Tested-on: WCN6855 hw2.1 WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.41

Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Baochen Qiang <quic_bqiang@quicinc.com>
Link: https://patch.msgid.link/20250604143457.26032-3-johan+linaro@kernel.org
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-06-26 16:10:47 -07:00
Johan Hovold
8c1ba5091f wifi: ath11k: fix dest ring-buffer corruption
Add the missing memory barrier to make sure that destination ring
descriptors are read after the head pointers to avoid using stale data
on weakly ordered architectures like aarch64.

The barrier is added to the ath11k_hal_srng_access_begin() helper for
symmetry with follow-on fixes for source ring buffer corruption which
will add barriers to ath11k_hal_srng_access_end().

Tested-on: WCN6855 hw2.1 WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.41

Fixes: d5c65159f2 ("ath11k: driver for Qualcomm IEEE 802.11ax devices")
Cc: stable@vger.kernel.org	# 5.6
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Baochen Qiang <quic_bqiang@quicinc.com>
Link: https://patch.msgid.link/20250604143457.26032-2-johan+linaro@kernel.org
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-06-26 16:10:47 -07:00
Hariharan Basuthkar
a44958c83e wifi: ath12k: Send WMI_VDEV_SET_TPC_POWER_CMD for AP vdev
The power value is 6 dBm on an AP operating on the 6 GHz channel.
This is a very low value.

On 6 GHz, the target computes the EIRP based on the power values sent
in the WMI_VDEV_SET_TPC_POWER_CMD. Currently, this is being sent only
for station interfaces and not for AP interfaces.

Therefore, add AP vdev to the condition in
ath12k_mac_station_supports_tpc() and rename
ath12k_mac_station_supports_tpc() to ath12k_mac_supports_tpc().

For a AP vdev, hardcode ap_power_type as IEEE80211_REG_LPI_AP, which is
filled in the WMI_VDEV_SET_TPC_POWER_CMDID sent to the target.
Currently, LPI is the only supported AP power mode. Since there is
no method currently to set the AP power mode from user-space, the
power mode is hard-coded to LPI.

Retain the existing logic for populating the power mode for a station
vdev.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1

Signed-off-by: Hariharan Basuthkar <quic_hbasuthk@quicinc.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250606112316.39316-1-quic_hbasuthk@quicinc.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-06-26 16:10:47 -07:00
Sarika Sharma
9903c0986f wifi: ath12k: Add memset and update default rate value in wmi tx completion
When both AP/STA and monitor interfaces are enabled, ieee80211_tx_status()
is invoked from two paths: the TX completion handler for data frames
and the WMI TX completion handler for management frames.
In the data path, the skb->cb is properly zeroed using memset, but in
the WMI path, this step is missing.

As a result, mac80211 encountered uninitialized (junk) values in
skb->cb when generating the radiotap header for monitor mode, leading
to invalid radiotap lengths.

Hence, explicitly zero the status field in the skb->cb using memset
in WMI TX completion path to ensure consistent and correct behavior
during WMI tx completion path.

Additionally, set info->status.rates[0].idx = -1 to indicate that
no valid rate information is available, avoiding misinterpretation of
garbage values.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1

Signed-off-by: Sarika Sharma <quic_sarishar@quicinc.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250603063512.1887652-1-quic_sarishar@quicinc.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-06-26 16:10:46 -07:00
Rameshkumar Sundaram
ce7c93d196 wifi: ath12k: Fix beacon reception for sta associated to Non-TX AP
Currently, when a station is associated with a Non-Transmitting BSS of an
MBSSID set, beacons are not frequently received from the firmware. This
results in missing events via beacons, such as channel switches, leading
to the station not switching to new channel as the AP does, eventually
causing a kick out event from the firmware. This issue arises due to
missing configuration of Non-Transmitting BSS information in station's
vdev up command.

Fix this by filling information such as the Transmitting BSSID, profile index
and profile count in vdev up command of station.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c5-00284-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1

Signed-off-by: Rameshkumar Sundaram <rameshkumar.sundaram@oss.qualcomm.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250530035615.3178480-3-rameshkumar.sundaram@oss.qualcomm.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-06-26 16:10:46 -07:00
Hari Chandrakanthan
70eeacc1a9 wifi: ath12k: Fix station association with MBSSID Non-TX BSS
ath12k station is unable to associate with non-transmitting BSSes
in a Multiple BSS set because the user-space does not receive
information about the non-transmitting BSSes from mac80211's
scan results.

The ath12k driver does not advertise its MBSSID capability to mac80211,
resulting in wiphy->support_mbssid not being set. Consequently, the
information about non-transmitting BSS is not parsed from received
Beacon/Probe response frames and is therefore not included in the
scan results.

Fix this by advertising the MBSSID capability of ath12k driver to
mac80211.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c5-00284-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1

Signed-off-by: Hari Chandrakanthan <quic_haric@quicinc.com>
Signed-off-by: Rameshkumar Sundaram <rameshkumar.sundaram@oss.qualcomm.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250530035615.3178480-2-rameshkumar.sundaram@oss.qualcomm.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-06-26 16:10:46 -07:00
Raj Kumar Bhagat
662e903214 wifi: ath12k: use real noise floor instead of default value
ATH12K_DEFAULT_NOISE_FLOOR represents the approximate noise floor value
which is used for RSSI calculation. Commit "wifi: ath12k: handle WMI event
for real noise floor calculation" added support to get the real noise floor
value from the firmware. Add changes to use the real value now instead of
the default one.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1

Signed-off-by: Raj Kumar Bhagat <quic_rajkbhag@quicinc.com>
Co-developed-by: Aditya Kumar Singh <aditya.kumar.singh@oss.qualcomm.com>
Signed-off-by: Aditya Kumar Singh <aditya.kumar.singh@oss.qualcomm.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250623-support_real_noise_floor-v2-2-974bbafa317e@oss.qualcomm.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-06-26 16:10:46 -07:00
Raj Kumar Bhagat
0314ee81a9 wifi: ath12k: handle WMI event for real noise floor calculation
At present, the ATH12K_DEFAULT_NOISE_FLOOR (-95) is used to calculate RSSI
value, providing an estimated noise floor value. Consequently, the RSSI
value is also approximate. This works but however, using actual noise floor
value will enable the reporting of the true RSSI value.

The firmware possesses the necessary data to determine the actual noise
floor. This data is provided to the host via the WMI event
WMI_PDEV_RSSI_DBM_CONVERSION_PARAMS_INFO_EVENTID, which includes the
runtime parameters needed for calculating the real noise floor in dBm. This
event is triggered by the firmware during channel changes, temperature
offset adjustments, and hardware chainmask modifications. The individual
TLVs may not always be present in each event. For instance, temperature
information might only appear if there is a change in offset due to
temperature variation.

Add support to handle and parse this WMI event. Use the received values to
calculate and store the noise floor value.

A subsequent change will use this noise floor value in the actual RSSI
calculation.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1

Signed-off-by: Raj Kumar Bhagat <quic_rajkbhag@quicinc.com>
Co-developed-by: Aditya Kumar Singh <aditya.kumar.singh@oss.qualcomm.com>
Signed-off-by: Aditya Kumar Singh <aditya.kumar.singh@oss.qualcomm.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250623-support_real_noise_floor-v2-1-974bbafa317e@oss.qualcomm.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-06-26 16:10:45 -07:00
Colin Ian King
d8f07889e9 wifi: ath11k: Make read-only const array svc_id static const
Don't populate the read-only array svc_id on the stack at run time,
instead make it static const.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250619082010.1834109-1-colin.i.king@gmail.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-06-26 16:10:45 -07:00
Johan Hovold
8f94804515 wifi: ath11k: fix suspend use-after-free after probe failure
Make sure to deregister the PM notifier to avoid a use-after-free on
suspend in case core initialisation fails (e.g. due to missing
firmware).

Tested-on: WCN6855 hw2.0 WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.41

Fixes: 32d93b51bc ("wifi: ath11k: choose default PM policy for hibernation")
Reported-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Closes: https://lore.kernel.org/all/d0cd065c-1cd1-4e56-8c57-60777b1f3664@oss.qualcomm.com/
Cc: Baochen Qiang <quic_bqiang@quicinc.com>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://patch.msgid.link/20250624082022.15469-1-johan+linaro@kernel.org
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-06-26 16:10:45 -07:00
Sergey Senozhatsky
a5b46aa7cf wifi: ath11k: clear initialized flag for deinit-ed srng lists
In a number of cases we see kernel panics on resume due
to ath11k kernel page fault, which happens under the
following circumstances:

1) First ath11k_hal_dump_srng_stats() call

 Last interrupt received for each group:
 ath11k_pci 0000:01:00.0: group_id 0 22511ms before
 ath11k_pci 0000:01:00.0: group_id 1 14440788ms before
 [..]
 ath11k_pci 0000:01:00.0: failed to receive control response completion, polling..
 ath11k_pci 0000:01:00.0: Service connect timeout
 ath11k_pci 0000:01:00.0: failed to connect to HTT: -110
 ath11k_pci 0000:01:00.0: failed to start core: -110
 ath11k_pci 0000:01:00.0: firmware crashed: MHI_CB_EE_RDDM
 ath11k_pci 0000:01:00.0: already resetting count 2
 ath11k_pci 0000:01:00.0: failed to wait wlan mode request (mode 4): -110
 ath11k_pci 0000:01:00.0: qmi failed to send wlan mode off: -110
 ath11k_pci 0000:01:00.0: failed to reconfigure driver on crash recovery
 [..]

2) At this point reconfiguration fails (we have 2 resets) and
  ath11k_core_reconfigure_on_crash() calls ath11k_hal_srng_deinit()
  which destroys srng lists.  However, it does not reset per-list
  ->initialized flag.

3) Second ath11k_hal_dump_srng_stats() call sees stale ->initialized
  flag and attempts to dump srng stats:

 Last interrupt received for each group:
 ath11k_pci 0000:01:00.0: group_id 0 66785ms before
 ath11k_pci 0000:01:00.0: group_id 1 14485062ms before
 ath11k_pci 0000:01:00.0: group_id 2 14485062ms before
 ath11k_pci 0000:01:00.0: group_id 3 14485062ms before
 ath11k_pci 0000:01:00.0: group_id 4 14780845ms before
 ath11k_pci 0000:01:00.0: group_id 5 14780845ms before
 ath11k_pci 0000:01:00.0: group_id 6 14485062ms before
 ath11k_pci 0000:01:00.0: group_id 7 66814ms before
 ath11k_pci 0000:01:00.0: group_id 8 68997ms before
 ath11k_pci 0000:01:00.0: group_id 9 67588ms before
 ath11k_pci 0000:01:00.0: group_id 10 69511ms before
 BUG: unable to handle page fault for address: ffffa007404eb010
 #PF: supervisor read access in kernel mode
 #PF: error_code(0x0000) - not-present page
 PGD 100000067 P4D 100000067 PUD 10022d067 PMD 100b01067 PTE 0
 Oops: 0000 [#1] PREEMPT SMP NOPTI
 RIP: 0010:ath11k_hal_dump_srng_stats+0x2b4/0x3b0 [ath11k]
 Call Trace:
 <TASK>
 ? __die_body+0xae/0xb0
 ? page_fault_oops+0x381/0x3e0
 ? exc_page_fault+0x69/0xa0
 ? asm_exc_page_fault+0x22/0x30
 ? ath11k_hal_dump_srng_stats+0x2b4/0x3b0 [ath11k (HASH:6cea 4)]
 ath11k_qmi_driver_event_work+0xbd/0x1050 [ath11k (HASH:6cea 4)]
 worker_thread+0x389/0x930
 kthread+0x149/0x170

Clear per-list ->initialized flag in ath11k_hal_srng_deinit().

Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Reviewed-by: Baochen Qiang <quic_bqiang@quicinc.com>
Fixes: 5118935b1b ("ath11k: dump SRNG stats during FW assert")
Link: https://patch.msgid.link/20250612084551.702803-1-senozhatsky@chromium.org
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-06-26 16:10:45 -07:00