Commit Graph

1298075 Commits

Author SHA1 Message Date
Kang Yang
f7b982d13d wifi: ath12k: fix A-MSDU indication in monitor mode
In monitor mode, host will reap MSDUs and then the MSDUs with same PPDU
ID will be aggregated into an A-MSDU in ath12k_dp_mon_rx_merg_msdus().

However, ath12k_dp_mon_rx_merg_msdus() doesn't calculate the total
length of the A-MSDU. This causes Wireshark to display the A-MSDU
incorrectly.

Therefore, need to add calculation of the A-MSDU length.

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

Signed-off-by: Kang Yang <quic_kangyang@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://patch.msgid.link/20241022110831.974-9-quic_kangyang@quicinc.com
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-23 10:16:01 -07:00
Kang Yang
bba112e6ed wifi: ath12k: use tail MSDU to get MSDU information
When receiving a packet in monitor mode, hardware will fill status
information msdu_end for MSDUs. Then host can use these status
information to get specific information about this packet, such as
l3 offset, bandwidth, mcs, packet type.

If this packet is composed of multiple MSDUs, then hardware will only
fill status information for the last(tail) MSDU. At this time,
MSDU information is uncertain for others MSDUs. But current code use
the first MSDU in monitor mode, so will get the wrong information.

Fix it by getting msdu information from last(tail) msdu.

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

Signed-off-by: Kang Yang <quic_kangyang@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://patch.msgid.link/20241022110831.974-8-quic_kangyang@quicinc.com
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-23 10:16:01 -07:00
Kang Yang
78d2405fd5 wifi: ath12k: delete NSS and TX power setting for monitor vdev
ath12k_mac_monitor_vdev_create() will set NSS and TX power to
firmware for monitor vdev.

But firmware doesn't need them for monitor mode.

So delete them as a cleanup.

Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1

Signed-off-by: Kang Yang <quic_kangyang@quicinc.com>
Link: https://patch.msgid.link/20241022110831.974-7-quic_kangyang@quicinc.com
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-23 10:16:01 -07:00
Kang Yang
f76bbedf5b wifi: ath12k: fix struct hal_rx_mpdu_start
Current struct hal_rx_mpdu_start in hal_rx.h is not matched with
hardware descriptor definition. This hardware descriptor definition
is determined by hardware. Host shall follow it.

So update struct hal_rx_mpdu_start and related code.

Both QCN9274 and WCN7850 need this modification.

Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.1.1-00210-QCAHKSWPL_SILICONZ-1

Signed-off-by: Kang Yang <quic_kangyang@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://patch.msgid.link/20241022110831.974-6-quic_kangyang@quicinc.com
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-23 10:16:00 -07:00
Kang Yang
04f33114af wifi: ath12k: fix struct hal_rx_phyrx_rssi_legacy_info
Current struct hal_rx_phyrx_rssi_legacy_info in hal_rx.h is not matched
with hardware descriptor definition. This hardware descriptor definition
is determined by hardware. Host shall follow it.

So update struct hal_rx_phyrx_rssi_legacy_info and related code.

Both QCN9274 and WCN7850 need this modification.

Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.1.1-00210-QCAHKSWPL_SILICONZ-1

Signed-off-by: Kang Yang <quic_kangyang@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://patch.msgid.link/20241022110831.974-5-quic_kangyang@quicinc.com
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-23 10:16:00 -07:00
Kang Yang
2298e37ac0 wifi: ath12k: fix struct hal_rx_ppdu_start
Current struct hal_rx_ppdu_start in hal_rx.h is not matched with
hardware descriptor definition. This hardware descriptor definition
is determined by hardware. Host shall follow it.

So update struct hal_rx_ppdu_start and related code.

Both QCN9274 and WCN7850 need this modification.

Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.1.1-00210-QCAHKSWPL_SILICONZ-1

Signed-off-by: Kang Yang <quic_kangyang@quicinc.com>
Link: https://patch.msgid.link/20241022110831.974-4-quic_kangyang@quicinc.com
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-23 10:16:00 -07:00
Kang Yang
68e6a80b36 wifi: ath12k: fix struct hal_rx_ppdu_end_user_stats
Current struct hal_rx_ppdu_end_user_stats in hal_rx.h is not matched
with hardware descriptor definition. This hardware descriptor definition
is determined by hardware. Host shall follow it.

So update struct hal_rx_ppdu_end_user_stats and related code.

Both QCN9274 and WCN7850 need this modification.

Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.1.1-00210-QCAHKSWPL_SILICONZ-1

Signed-off-by: Kang Yang <quic_kangyang@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://patch.msgid.link/20241022110831.974-3-quic_kangyang@quicinc.com
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-23 10:16:00 -07:00
Kang Yang
4d05ee786e wifi: ath12k: remove unused variable monitor_present
Variable monitor_present is not used yet and will not be used in future
monitor mode. So delete it as cleanup.

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

Signed-off-by: Kang Yang <quic_kangyang@quicinc.com>
Link: https://patch.msgid.link/20241022110831.974-2-quic_kangyang@quicinc.com
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-23 10:16:00 -07:00
Jose Ignacio Tornos Martinez
ca68ce0d9f wifi: ath12k: fix warning when unbinding
If there is an error during some initialization related to firmware,
the buffers dp->tx_ring[i].tx_status are released.
However this is released again when the device is unbinded (ath12k_pci),
and we get:
WARNING: CPU: 0 PID: 2098 at mm/slub.c:4689 free_large_kmalloc+0x4d/0x80
Call Trace:
free_large_kmalloc
ath12k_dp_free
ath12k_core_deinit
ath12k_pci_remove
...

The issue is always reproducible from a VM because the MSI addressing
initialization is failing.

In order to fix the issue, just set the buffers to NULL after releasing in
order to avoid the double free.

cc: stable@vger.kernel.org
Fixes: d889913205 ("wifi: ath12k: driver for Qualcomm Wi-Fi 7 devices")
Signed-off-by: Jose Ignacio Tornos Martinez <jtornosm@redhat.com>
Link: https://patch.msgid.link/20241017181004.199589-3-jtornosm@redhat.com
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-22 07:42:31 -07:00
Jose Ignacio Tornos Martinez
1304446f67 wifi: ath12k: fix crash when unbinding
If there is an error during some initialization related to firmware,
the function ath12k_dp_cc_cleanup is called to release resources.
However this is released again when the device is unbinded (ath12k_pci),
and we get:
BUG: kernel NULL pointer dereference, address: 0000000000000020
at RIP: 0010:ath12k_dp_cc_cleanup.part.0+0xb6/0x500 [ath12k]
Call Trace:
ath12k_dp_cc_cleanup
ath12k_dp_free
ath12k_core_deinit
ath12k_pci_remove
...

The issue is always reproducible from a VM because the MSI addressing
initialization is failing.

In order to fix the issue, just set to NULL the released structure in
ath12k_dp_cc_cleanup at the end.

cc: stable@vger.kernel.org
Fixes: d889913205 ("wifi: ath12k: driver for Qualcomm Wi-Fi 7 devices")
Signed-off-by: Jose Ignacio Tornos Martinez <jtornosm@redhat.com>
Link: https://patch.msgid.link/20241017181004.199589-2-jtornosm@redhat.com
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-22 07:42:31 -07:00
Lingbo Kong
fd01ace114 wifi: ath12k: remove msdu_end structure for WCN7850
Currently, when ath12k retrieves values from the structure
rx_msdu_end_wcn7850, the information obtained is incorrect. This is because
the definition of the rx_msdu_end_wcn7850 structure in ath12k is incorrect.
In fact, the rx_msdu_end structure used by WCN7850 is the same as the
rx_msdu_end structure of QCN9274.

Commit ed823fd113 ("wifi: ath12k: add msdu_end structure for WCN7850")
introduced this structure. The original issue trying to be fixed with that
commit is that the TID information retrieved from the rx_msdu_end structure
was incorrect, and it was thought that the structure wasn't correct, so a
supposedly correct structure was introduced. However it was subsequently
discovered that the TID information is only guaranteed to be valid in the
rx_msdu_start structure, so that commit added the logic to retrieve the TID
from the rx_msdu_start, but unfortunately kept the rx_msdu_end_wcn7850
structure.

To address this issue, revert the code related to the rx_msdu_end_wcn7850
structure, retaining the TID retrieval logic.

This patch does not affect QCN9274.

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

Fixes: ed823fd113 ("wifi: ath12k: add msdu_end structure for WCN7850")
Signed-off-by: Lingbo Kong <quic_lingbok@quicinc.com>
Link: https://patch.msgid.link/20241008093039.11076-1-quic_lingbok@quicinc.com
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-22 07:42:31 -07:00
Sriram R
477cabfdb7 wifi: ath12k: modify link arvif creation and removal for MLO
Currently ath12k_mac_op_assign_vif_chanctx() uses ahvif->deflink to create and
start vdev based on incoming channel context. With MLO multiple links could be
associated to the ahvif. Use link id from link_conf passed by mac80211 and do
vdev create start for intended link of ahvif.

Add ath12k_mac_assign_link_vif() helper to allocate and initialize link arvif
object based on input link_id.  The first link arvif that is being created in
an ahvif will use preallocated ahvif->deflink object and the rest gets
allocated.

Currently link arvif can be removed in two call backs namely
ath12k_mac_op_remove_interface() and ath12k_mac_op_unassign_vif_chanctx():

  * ath12k_mac_op_unassign_vif_chanctx() carries link_info so
    obtain link_id from link_info and handle removal for that
    link

  * ath12k_mac_op_remove_interface() is done at interface/MLD
    level hence loop through the active link arvifs and remove
    all of them

Add ath12k_mac_unassign_link_vif() helper to reset/destroy the link arvifs
allocated for an ahvif.

For scan request from mac80211, check if the any of the link arvifs of the
ahvif is already created on the radio in which scan is requested and use it. If
not use deflink(link 0) for creating scan arvif.

Also ath12k creates vdev during assign_vif_chanctx() mac80211 op callback as it
knows channel associated with given link only in this callback.  Whereas
mac80211 updates addition/deletion of links to an ML vif via
.change_vif_links() callback and this is done before channel assignment.  Hence
register an dummy ath12k_mac_op_change_vif_links() function to
change_vif_links() and acknowledge mac80211s link updates.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-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: Sriram R <quic_srirrama@quicinc.com>
Co-developed-by: Rameshkumar Sundaram <quic_ramess@quicinc.com>
Signed-off-by: Rameshkumar Sundaram <quic_ramess@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20241015171416.518022-12-kvalo@kernel.org
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-16 08:36:20 -07:00
Sriram R
f4adb07e0a wifi: ath12k: update ath12k_mac_op_update_vif_offload() for MLO
Currently ath12k_mac_op_update_vif_offload() updates for vif encapsulation and
decapsulation offload configurations for intended vif's deflink.

But for an ML vif encapapsulation and decapsulation offloads are an MLD level
configuration so apply the same configuration for all affiliated links of the
ML vif.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-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: Sriram R <quic_srirrama@quicinc.com>
Signed-off-by: Rameshkumar Sundaram <quic_ramess@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20241015171416.518022-11-kvalo@kernel.org
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-16 08:36:20 -07:00
Sriram R
af41f908c9 wifi: ath12k: update ath12k_mac_op_conf_tx() for MLO
Refactor ath12k_mac_op_conf_tx() to apply and cache the TX parameters based on
the link id provided by mac80211.

While at it, the link id argument of ath12k_mac_conf_tx() is not used so remove
it.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-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: Sriram R <quic_srirrama@quicinc.com>
Co-developed-by: Rameshkumar Sundaram <quic_ramess@quicinc.com>
Signed-off-by: Rameshkumar Sundaram <quic_ramess@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20241015171416.518022-10-kvalo@kernel.org
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-16 08:36:20 -07:00
Rameshkumar Sundaram
25e18b9d6b wifi: ath12k: modify ath12k_mac_op_set_key() for MLO
Currently ath12k_mac_op_set_key() uses ahvif's deflink to set/cache keys
depending upon the availability of corresponding vdev. But with MLO the
incoming vif could have multiple links affiliated to it, hence use the link id
provided in the key info argument and apply/cache the key to the corresponding
link arvif. When the set key is a pairwise key intended for an ML station then
set the same key on all the affiliated link stations.

Also there could be multiple keys associates to a single link: group keys,
mgmt/beacon protection keys and so on. Current key caching design lacks support
for caching multiple keys for a given link cache. Add support to store a list
of all link keys in the ahvifs link cache as well as update, flush and free the
same whenever required.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-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: Rameshkumar Sundaram <quic_ramess@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20241015171416.518022-9-kvalo@kernel.org
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-16 08:36:20 -07:00
Sriram R
afbab6e4e8 wifi: ath12k: modify ath12k_mac_op_bss_info_changed() for MLO
Currently bss_info_changed callback (which is registered with
ath12k_mac_op_bss_info_changed()) is used to inform vif (struct ieee80211_vif) and bss
(struct ieee80211_bss_conf) level configuration changes to driver.

With MLO, vif level config as well each link config changes inside vif needs to
be updated and mac80211 uses vif_cfg_changed() and link_info_changed() callback
ops for the same, this is also backward compatible where mac80211 will update
default link conf changes in case VIF is non-MLO.

Rename ath12k_mac_op_bss_info_changed() to ath12k_mac_op_link_info_changed()
and register the same to link_info_changed callback.  Register
ath12k_mac_op_vif_cfg_changed() to vif_cfg_changed() callback and handle all
vif level configuration changes there.

Also, currently ath12k_mac_op_bss_info_changed() uses deflink to apply the
config or to cache the config based on the availability of corresponding vdev.
With MLO multiple links can be affiliated to a vif/BSS, so use the link id
provided by mac80211 to fetch the corresponding link to which the bss change
was intended.

For non-MLO link id 0 will be provided by mac80211 and deflink (which is mapped
to ahvif->links[0]) will be used.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-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: Sriram R <quic_srirrama@quicinc.com>
Co-developed-by: Rameshkumar Sundaram <quic_ramess@quicinc.com>
Signed-off-by: Rameshkumar Sundaram <quic_ramess@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20241015171416.518022-8-kvalo@kernel.org
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-16 08:36:20 -07:00
Rameshkumar Sundaram
94a2712f0b wifi: ath12k: modify ath12k_get_arvif_iter() for MLO
Currently ath12k_get_arvif_iter() takes input ahvif's deflink to check if it
matches with given radio (ar) but in case MLO there could be multiple links
affiliated with ahvif, hence iterate through the links of the ahvif and find
the right arvif that belongs to the given radio.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-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: Rameshkumar Sundaram <quic_ramess@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20241015171416.518022-7-kvalo@kernel.org
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-16 08:36:20 -07:00
Rameshkumar Sundaram
abaadb934b wifi: ath12k: modify ath12k_mac_vif_chan() for MLO
With MLO, multiple links can be affiliated to a vif (struct ieee80211_vif) and
hence ath12k_mac_vif_chan() needs to know the link id to fetch the channel
context among the links. Rename ath12k_mac_vif_chan() to
ath12k_mac_vif_link_chan() and introduce link id argument to fetch the channel
context from the link bss corresponding to the link id.

For non-MLO vif, link 0's (i.e. deflink) channel context will be returned.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-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: Rameshkumar Sundaram <quic_ramess@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20241015171416.518022-6-kvalo@kernel.org
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-16 08:36:20 -07:00
Rameshkumar Sundaram
84c5971082 wifi: ath12k: prepare vif config caching for MLO
Currently vif configuration cache pointers are placed in arvif and caching is
done whenever a link vif configuration is received before driver created vdev
for it (i.e. before channel is assigned), this is possible because current code
only uses default link (ahvif->deflink) which is preallocated.

With MLO changes the ieee80211_vif drv priv is now ahvif and its arvifs (struct
ath12k_link_vif) other than deflink can be allocated dynamically during channel
assignment.  Hence maintain link level cache in ahvif and whenever channel is
assigned for link vif and vdev is created, flush the corresponding link vif
cache from ahvif.

Current code uses cache of ATH12K_DEFAULT_LINK_ID (0) which is the cache of
ahvif->deflink.

Co-developed-by: Sriram R <quic_srirrama@quicinc.com>
Signed-off-by: Sriram R <quic_srirrama@quicinc.com>
Signed-off-by: Rameshkumar Sundaram <quic_ramess@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20241015171416.518022-5-kvalo@kernel.org
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-16 08:36:19 -07:00
Sriram R
b89b5dbea6 wifi: ath12k: prepare sta data structure for MLO handling
To prepare the driver for MLO support, split the driver sta data structure to
scale for multiple links. This requires changing the use of arsta to per link
and not per hw which can now comprise of multiple links. Also since most
configurations from mac80211 are done per link, do refactoring of the driver
functions to apply these configurations at link level.

Split struct ath12k_sta, which is the driver private of struct ieee80211_sta,
to store link specific information as struct ath12k_link_sta. For default use
cases struct ath12k_sta will have a preallocated link sta called deflink which
will be used by non ML STAs and the first link sta of ML STA.

With MLO support to be added, remaining link stas will allocated during state
change where new STA is added. These link stas will be freed when STA is
deleted.

Current ath12k_sta(arsta) structure:

	 +-----------------+       +----------------+
	 |                 |       |                |
	 |   ieee80211_sta |       |  ieee80211_sta |
	 |   private data  |       |  private data  |
	 |                 |       |                |
	 |   ath12k_sta    |       |  ath12k_sta    |
	 |   (arsta)       |       |   (arsta)      |
	 |+---------------+|       | +-------------+|
	 || *arvif (link  ||       | |*arvif (link ||
	 || vif of an ar  ||       | | vif of an ar||
	 || say 5GHz)     ||       | | say 6GHz)   ||
	 |+---------------+|       | +-------------+|
	 +-----------------+       +----------------+

New struct ath12k_sta (ahsta) containing ath12k_link_sta(s) (arsta) (deflink is
preallocated member which is always the first link if ieee80211_sta is ML STA
and is the only link sta otherwise):

		+---------------------------------------+
		|         ieee80211_sta                 |
		|         private data                  |
		|                                       |
		|         ath12k_sta (ahsta)            |
		| +-------------------------------------+
		| | ath12k_link_sta deflink (arsta)     |
		| |                                     |
		| |  *arvif (link vif of ar (5GHz))     |
		| +-------------------------------------+
		| +-------------------------------------+
		| | ath12k_link_sta *link (arsta)       |
		| |                                     |
		| |   *arvif (link vif of ar (6GHz))    |
		| |                                     |
		| +-------------------------------------+
		|                                       |
		+---------------------------------------+

To refactor existing ath12k_sta to make use of link stas, following changes are
made:

 1. Limit struct ieee80211_sta argument mac80211 ops unless otherwise really required.

 2. struct ath12k_sta, now called by variable name arsta, stores multiple
    arstas (struct ah12k_link_sta) and also has a back pointer to struct
    ath12k_sta.

 3. Pass struct ath12k_link_sta to mac functions that passed struct
    ieee80211_sta argument and fetch struct ath12k_sta (ahsta) and struct
    ieee80211_sta(sta) internally. This is done to avoid passing link id in all
    the functions and performing validation across these functions. Rather the
    validation and sta to arsta conversion can be done only at the mac80211 ops.

 4. In this patchset, only ahsta->deflink is used to be on par with the
    existing code. When MLO support is added the link id will be used to fetch the
    arsta.

 5. Change ath12k_sta_to_arsta() to ath12k_vif_to_ahsta() to fetch the
    ML level sta. The link sta can be fetched from ahsta->link[], or the
    deflink can be accessed via ahsta->deflink. API to access link
    sta (arsta) by passing link_id can be introduced with MLO Support.

 6. The ieee80211_sta can be accessed from ahsta using ath12k_ahsta_to_sta()

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-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: Sriram R <quic_srirrama@quicinc.com>
Co-developed-by: Rameshkumar Sundaram <quic_ramess@quicinc.com>
Signed-off-by: Rameshkumar Sundaram <quic_ramess@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20241015171416.518022-4-kvalo@kernel.org
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-16 08:36:19 -07:00
Sriram R
005fe43b93 wifi: ath12k: pass ath12k_link_vif instead of vif/ahvif
Currently ieee80211_vif/ahvif is passed as argument for all vif related control
path functions that are being called from mac80211 ops. With MLO support being
added multiple link vifs can be part of an ieee80211_vif/ahvif and all these
functions will need link id along with ieee80211_vif/ahvif to be passed to
fetch the corresponding link vif (arvif) to which the control/config applies.
Also all these functions need to validate the locking dependency before
dereferencing and start using the link vifs.

To avoid these redundant link dereferences and validations, limit
ieee80211_vif/ahvif argument to mac80211 ops unless otherwise really required.
Do link vif dereference only in mac80211 ops. Replace vif arg with
ath12k_link_vif and internally fetch ath12k_vif (ahvif) and vif (ieee80211_vif)
if required on other functions.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-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: Sriram R <quic_srirrama@quicinc.com>
Co-developed-by: Rameshkumar Sundaram <quic_ramess@quicinc.com>
Signed-off-by: Rameshkumar Sundaram <quic_ramess@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20241015171416.518022-3-kvalo@kernel.org
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-16 08:36:19 -07:00
Sriram R
3dd2c68f20 wifi: ath12k: prepare vif data structure for MLO handling
To prepare the driver for MLO support, split the driver vif data structure to
scale for multiple links. This requires changing the use of arvif to per link
and not per hw which can now comprise of multiple links. Also since most
configurations from mac80211 are done per link, do refactoring of the driver
functions to apply these configurations at link level.

Split ath12k_vif which is the driver private of ieee80211_vif to store link
specific information as ath12k_link_vif. For default use cases the ath12k vif
will have a preallocated link vif called deflink which will be used by non ML
and the first link vif of ML vif.

With MLO support to be added, remaining link vifs will be allocated during
channel assignment where vdev create/start happens. These link vifs will be
freed during interface down.

       		Current ath12k_vif(arvif) structure

             +---------------+      +---------------+     +---------------+
             | ieee80211_vif |      | ieee80211_vif |     | ieee80211_vif |
             | private data  |      | private data  |     | private data  |
             |               |      |               |     |               |
             |  ath12k_vif   |      |  ath12k_vif   |     |  ath12k_vif   |
             |  (arvif)      |      |  (arvif)      |     |  (arvif)      |
             |               |      |               |     |               |
             |  +----------+ |      |  +----------+ |     |  +----------+ |
             |  |*ar (2GHz)| |      |  |*ar (5GHz)| |     |  |*ar (2GHz)| |
             |  +----------+ |      |  +----------+ |     |  +----------+ |
             |               |      |               |     |               |
             +---------------+      +---------------+     +---------------+

The new ath12k_vif (ahvif) containing ath12k_link_vif(s) (arvif) (deflink is
preallocated member which is always the first link if ieee80211_vif is MLD and
is the only link otherwise):

       			+---------------------------------+
       			|     ieee80211_vif               |
       			|     private data                |
       			|                                 |
       			|   ath12k_vif(ahvif)             |
       			|                                 |
       			| +-------------------------------+
       			| |ath12k_link_vif deflink (arvif)|
       			| |        +---------------+      |
       			| |        | *ar(2GHz)     |      |
       			| +-------------------------------+
       			| +-------------------------------+
       			| |  ath12k_link_vif *link (arvif)|
       			| |        +---------------+      |
       			| |        | *ar(5GHz)     |      |
       			| +-------------------------------+
       			| +-------------------------------+
       			| |  ath12k_link_vif *link (arvif)|
       			| |        +---------------+      |
       			| |        | *ar(6GHz)     |      |
       			| +-------------------------------+
       			|                                 |
       			+---------------------------------+

To refactor existing ath12k_vif to make use of link vifs, following
changes are made:

 1. ath12k_vif now called by variable name ahvif storing multiple
    arvifs (struct ah12k_link_vif) and also has a back pointer to ieee80211_vif.

 2. In this patch set, only deflink is used to be on par with the
    existing code. When MLO support is added the link id will be used to fetch
    the arvif.

 3. For mac80211 ops which doesn't use specific link_id, the config or info
    is common for the vif, hence apply the config to all link vifs.
    The links_map in the ahvif, will be used to identify all the link vifs that
    are setup.

 4. Change ath12k_vif_to_arvif() as ath12k_vif_to_ahvif() to fetch the
    hw level vif. The link vif can be fetched from ahvif->link[], or the
    deflink can be accessed via ahvif->deflink. API to access link
    vif (arvif) by passing link_id can be introduced with MLO Support.

 5. The ieee80211_vif can be accessed from ahvif using ath12k_ahvif_to_vif().

The locking continues to use wiphy_lock() for protecting access to most data in
struct ath12k&co, there are no changes in that regard. Though struct
ath12k_vif::link[] is protected with RCU.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-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: Sriram R <quic_srirrama@quicinc.com>
Co-developed-by: Rameshkumar Sundaram <quic_ramess@quicinc.com>
Signed-off-by: Rameshkumar Sundaram <quic_ramess@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20241015171416.518022-2-kvalo@kernel.org
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-16 08:36:19 -07:00
Pradeep Kumar Chitrapu
25ff1ae521 wifi: ath12k: Support BE OFDMA Pdev Rate Stats
Add support to request BE OFDMA pdev rate stats from firmware
through HTT stats type 51. These stats give information such
as number of spatial streams, bandwidth, MCS, etc.

Note: WCN7850 firmware version -
WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4
does not support HTT stats type 51.

Sample output:
-------------
echo 51 > /sys/kernel/debug/ath12k/pci-0000\:06\:00.0/mac0/htt_stats_type
cat /sys/kernel/debug/ath12k/pci-0000\:06\:00.0/mac0/htt_stats
HTT_TX_PDEV_RATE_STATS_BE_OFDMA_TLV:
mac_id = 0
be_ofdma_tx_ldpc = 0
be_ofdma_tx_mcs =  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
be_ofdma_eht_sig_mcs =  0:0, 1:0, 2:0, 3:0
be_ofdma_tx_ru_size =  26:0  52:0  52+26:0  106:0  106+26:0  242:0  484:0  484+242:0  996:0  996+484:0  996+484+242:0  996x2:0  996x2+484:0  996x3:0  996x3+484:0  996x4:0
be_ofdma_tx_nss =  =  1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0
be_ofdma_tx_bw =  0:0, 1:0, 2:0, 3:0, 4:0
be_ofdma_tx_gi[0] =  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
be_ofdma_tx_gi[1] =  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
be_ofdma_tx_gi[2] =  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
be_ofdma_tx_gi[3] =  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

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.1.1-00214-QCAHKSWPL_SILICONZ-1

Signed-off-by: Pradeep Kumar Chitrapu <quic_pradeepc@quicinc.com>
Signed-off-by: Roopni Devanathan <quic_rdevanat@quicinc.com>
Link: https://patch.msgid.link/20241014070610.3982173-3-quic_rdevanat@quicinc.com
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-16 07:43:08 -07:00
Sidhanta Sahu
9fa60c6d40 wifi: ath12k: Support Pdev Scheduled Algorithm Stats
Add support to request scheduled algorithm stats from firmware
through HTT stats type 49. These stats give information such
as count of DLOFDMA enabled, disabled, probed and monitored
based on rate and latency, consecutive number of MPDUs tried
and succeeded, etc.

Note: WCN7850 firmware version -
WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4
does not support HTT stats type 49.

Sample output:
-------------
echo 49 > /sys/kernel/debug/ath12k/pci-0000\:06\:00.0/mac0/htt_stats_type
cat /sys/kernel/debug/ath12k/pci-0000\:06\:00.0/mac0/htt_stats
HTT_PDEV_SCHED_ALGO_TLV:
mac_id = 0
rate_based_dlofdma_enabled_count =  0:0, 1:0, 2:0, 3:0
rate_based_dlofdma_disabled_count =  0:0, 1:0, 2:0, 3:0
rate_based_dlofdma_probing_count =  0:0, 1:0, 2:0, 3:0
rate_based_dlofdma_monitoring_count =  0:0, 1:0, 2:0, 3:0
chan_acc_lat_based_dlofdma_enabled_count =  0:0, 1:0, 2:0, 3:0
chan_acc_lat_based_dlofdma_disabled_count =  0:0, 1:0, 2:0, 3:0
chan_acc_lat_based_dlofdma_monitoring_count =  0:0, 1:0, 2:0, 3:0
downgrade_to_dl_su_ru_alloc_fail =  0:0, 1:0, 2:0, 3:0
candidate_list_single_user_disable_ofdma =  0:0, 1:0, 2:0, 3:0
dl_cand_list_dropped_high_ul_qos_weight =  0:0, 1:0, 2:0, 3:0
ax_dlofdma_disabled_due_to_pipelining =  0:0, 1:0, 2:0, 3:0
dlofdma_disabled_su_only_eligible =  0:0, 1:0, 2:0, 3:0
dlofdma_disabled_consec_no_mpdus_tried =  0:0, 1:0, 2:0, 3:0
dlofdma_disabled_consec_no_mpdus_success =  0:0, 1:0, 2:0, 3:0

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.1.1-00214-QCAHKSWPL_SILICONZ-1

Signed-off-by: Sidhanta Sahu <quic_sidhanta@quicinc.com>
Signed-off-by: Roopni Devanathan <quic_rdevanat@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://patch.msgid.link/20241014070610.3982173-2-quic_rdevanat@quicinc.com
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-16 07:43:07 -07:00
Rajat Soni
6c3bd9c31a wifi: ath12k: Support DMAC Reset Stats
Add support to request DMAC reset stats from firmware through HTT stats
type 45. These stats give debug SoC error stats such as reset count, reset
time, engage time and count, disengage time and count and destination
ring mask.

Sample output:
-------------
echo 45 > /sys/kernel/debug/ath12k/pci-0000\:06\:00.0/mac0/htt_stats_type
cat /sys/kernel/debug/ath12k/pci-0000\:06\:00.0/mac0/htt_stats
HTT_DMAC_RESET_STATS_TLV:
reset_count = 1
reset_time_ms = 3013430342
disengage_time_ms = 3013430342
engage_time_ms = 3013430342
disengage_count = 1
engage_count = 1
drain_dest_ring_mask = 0x0

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.1.1-00214-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4

Signed-off-by: Rajat Soni <quic_rajson@quicinc.com>
Signed-off-by: Roopni Devanathan <quic_rdevanat@quicinc.com>
Link: https://patch.msgid.link/20241014065259.3968727-1-quic_rdevanat@quicinc.com
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-16 07:43:07 -07:00
Sowmiya Sree Elavalagan
a9b46dd2e4 wifi: ath12k: Add firmware coredump collection support
In case of firmware assert snapshot of firmware memory is essential for
debugging. Add firmware coredump collection support for PCI bus.
Collect RDDM and firmware paging dumps from MHI and pack them in TLV
format and also pack various memory shared during QMI phase in separate
TLVs.  Add necessary header and share the dumps to user space using dev
coredump framework. Coredump collection is disabled by default and can
be enabled using menuconfig. Dump collected for a radio is 55 MB
approximately.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.2.1-00201-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4

Signed-off-by: Sowmiya Sree Elavalagan <quic_ssreeela@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://patch.msgid.link/20240717085604.4131642-1-quic_ssreeela@quicinc.com
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-16 07:43:07 -07:00
Kalle Valo
c347f18160 wifi: ath12k: add missing lockdep_assert_wiphy() for ath12k_mac_op_ functions
Use lockdep_assert_wiphy() to document the ath12k_mac_op_ functions which are
called under wiphy_lock(). And make sure that the functions which already have
that is in the beginning of the function.

No functional changes.

Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20241011173323.924473-1-kvalo@kernel.org
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-16 07:43:07 -07:00
Rosen Penev
f3ced9bb90 wifi: ath5k: add PCI ID for Arcadyan devices
Arcadyan made routers with this PCI ID containing an AR2417.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
Link: https://patch.msgid.link/20240930180716.139894-3-rosenp@gmail.com
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-16 07:43:07 -07:00
Rosen Penev
da04740124 wifi: ath5k: add PCI ID for SX76X
This is in two devices made by Gigaset, SX762 and SX763.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
Link: https://patch.msgid.link/20240930180716.139894-2-rosenp@gmail.com
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-16 07:43:07 -07:00
Kang Yang
95c38953cb wifi: ath10k: avoid NULL pointer error during sdio remove
When running 'rmmod ath10k', ath10k_sdio_remove() will free sdio
workqueue by destroy_workqueue(). But if CONFIG_INIT_ON_FREE_DEFAULT_ON
is set to yes, kernel panic will happen:
Call trace:
 destroy_workqueue+0x1c/0x258
 ath10k_sdio_remove+0x84/0x94
 sdio_bus_remove+0x50/0x16c
 device_release_driver_internal+0x188/0x25c
 device_driver_detach+0x20/0x2c

This is because during 'rmmod ath10k', ath10k_sdio_remove() will call
ath10k_core_destroy() before destroy_workqueue(). wiphy_dev_release()
will finally be called in ath10k_core_destroy(). This function will free
struct cfg80211_registered_device *rdev and all its members, including
wiphy, dev and the pointer of sdio workqueue. Then the pointer of sdio
workqueue will be set to NULL due to CONFIG_INIT_ON_FREE_DEFAULT_ON.

After device release, destroy_workqueue() will use NULL pointer then the
kernel panic happen.

Call trace:
ath10k_sdio_remove
  ->ath10k_core_unregister
    ……
    ->ath10k_core_stop
      ->ath10k_hif_stop
        ->ath10k_sdio_irq_disable
    ->ath10k_hif_power_down
      ->del_timer_sync(&ar_sdio->sleep_timer)
  ->ath10k_core_destroy
    ->ath10k_mac_destroy
      ->ieee80211_free_hw
        ->wiphy_free
    ……
          ->wiphy_dev_release
  ->destroy_workqueue

Need to call destroy_workqueue() before ath10k_core_destroy(), free
the work queue buffer first and then free pointer of work queue by
ath10k_core_destroy(). This order matches the error path order in
ath10k_sdio_probe().

No work will be queued on sdio workqueue between it is destroyed and
ath10k_core_destroy() is called. Based on the call_stack above, the
reason is:
Only ath10k_sdio_sleep_timer_handler(), ath10k_sdio_hif_tx_sg() and
ath10k_sdio_irq_disable() will queue work on sdio workqueue.
Sleep timer will be deleted before ath10k_core_destroy() in
ath10k_hif_power_down().
ath10k_sdio_irq_disable() only be called in ath10k_hif_stop().
ath10k_core_unregister() will call ath10k_hif_power_down() to stop hif
bus, so ath10k_sdio_hif_tx_sg() won't be called anymore.

Tested-on: QCA6174 hw3.2 SDIO WLAN.RMH.4.4.1-00189

Signed-off-by: Kang Yang <quic_kangyang@quicinc.com>
Tested-by: David Ruth <druth@chromium.org>
Reviewed-by: David Ruth <druth@chromium.org>
Link: https://patch.msgid.link/20241008022246.1010-1-quic_kangyang@quicinc.com
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-16 07:43:06 -07:00
Kalle Valo
e805272f8c wifi: ath12k: ath12k_mac_op_sta_state(): clean up update_wk cancellation
Now that we have switched to using wiphy_lock() there's no need to have
update_wk cancel call separately, for consistency move it to the rest of code
handling IEEE80211_STA_NONE state.

No functional changes.

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

Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20241007165932.78081-7-kvalo@kernel.org
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-11 07:21:54 -07:00
Kalle Valo
37d06d71e6 wifi: ath12k: ath12k_mac_set_key(): remove exit label
In ath12k_mac_set_key() removing the exit label was a bit more complex so do
it in a separate patch. Remove the else branch and remove now the unnecessary
ret initialisation.

No functional changes.

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

Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20241007165932.78081-6-kvalo@kernel.org
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-11 07:21:54 -07:00
Kalle Valo
31489439e6 wifi: ath12k: cleanup unneeded labels
After removing the conf_mutex in the previous patch there are now unnecessary
labels in mac.c. Remove those and instead use directly return.

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

Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20241007165932.78081-5-kvalo@kernel.org
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-11 07:21:54 -07:00
Kalle Valo
b8c67509b9 wifi: ath12k: switch to using wiphy_lock() and remove ar->conf_mutex
Switch from using driver specific ar->conf_mutex to wiphy->mtx. The benefits are:

* one lock less and simplified locking

* possibility to use wiphy_work_queue() without other locks

Most of the mac80211 ops are called within wiphy_lock(), most notable exception
being tx op. This can be checked with lockdep_assert_wiphy() from
net/mac80211/driver-ops.[ch] and I veried that by manually going through all
the ops in ath12k_ops which had lockdep_assert_wiphy().

The conversion was simple:

* All conf_mutex lock() and unlock() calls which
  already were called under wiphy_lock() I replaced with
  lockdep_assert_wiphy().

* The rest of conf_mutex calls I replaced with wiphy_lock() and wiphy_unlock().

* All lockdep_asset_held(conf_mutex) calls I replaced with
  lockdep_assert_wiphy().

One exception was in ath12k_core_post_reconfigure_recovery() where the wiphy
lock needs to be taken before hw_mutex to avoid a lockdep warning.

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

Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20241007165932.78081-4-kvalo@kernel.org
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-11 07:21:54 -07:00
Kalle Valo
58550cdda9 wifi: ath12k: convert struct ath12k_sta::update_wk to use struct wiphy_work
For preparation to switch ath12k to use wiphy_lock() we can convert
ath12k_sta_rc_update_wk() to use wiphy_work_queue() for consistency. To avoid
any deadlocks do the struct ath12k_sta::update_wk conversion before switching
to using wiphy_lock() throughout the driver.

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

Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20241007165932.78081-3-kvalo@kernel.org
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-11 07:21:54 -07:00
Kalle Valo
8fac3266c6 wifi: ath12k: fix atomic calls in ath12k_mac_op_set_bitrate_mask()
When I try to manually set bitrates:

iw wlan0 set bitrates legacy-2.4 1

I get sleeping from invalid context error, see below. Fix that by switching to
use recently introduced ieee80211_iterate_stations_mtx().

Do note that WCN6855 firmware is still crashing, I'm not sure if that firmware
even supports bitrate WMI commands and should we consider disabling
ath12k_mac_op_set_bitrate_mask() for WCN6855? But that's for another patch.

BUG: sleeping function called from invalid context at drivers/net/wireless/ath/ath12k/wmi.c:420
in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 2236, name: iw
preempt_count: 0, expected: 0
RCU nest depth: 1, expected: 0
3 locks held by iw/2236:
 #0: ffffffffabc6f1d8 (cb_lock){++++}-{3:3}, at: genl_rcv+0x14/0x40
 #1: ffff888138410810 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: nl80211_pre_doit+0x54d/0x800 [cfg80211]
 #2: ffffffffab2cfaa0 (rcu_read_lock){....}-{1:2}, at: ieee80211_iterate_stations_atomic+0x2f/0x200 [mac80211]
CPU: 3 UID: 0 PID: 2236 Comm: iw Not tainted 6.11.0-rc7-wt-ath+ #1772
Hardware name: Intel(R) Client Systems NUC8i7HVK/NUC8i7HVB, BIOS HNKBLi70.86A.0067.2021.0528.1339 05/28/2021
Call Trace:
 <TASK>
 dump_stack_lvl+0xa4/0xe0
 dump_stack+0x10/0x20
 __might_resched+0x363/0x5a0
 ? __alloc_skb+0x165/0x340
 __might_sleep+0xad/0x160
 ath12k_wmi_cmd_send+0xb1/0x3d0 [ath12k]
 ? ath12k_wmi_init_wcn7850+0xa40/0xa40 [ath12k]
 ? __netdev_alloc_skb+0x45/0x7b0
 ? __asan_memset+0x39/0x40
 ? ath12k_wmi_alloc_skb+0xf0/0x150 [ath12k]
 ? reacquire_held_locks+0x4d0/0x4d0
 ath12k_wmi_set_peer_param+0x340/0x5b0 [ath12k]
 ath12k_mac_disable_peer_fixed_rate+0xa3/0x110 [ath12k]
 ? ath12k_mac_vdev_stop+0x4f0/0x4f0 [ath12k]
 ieee80211_iterate_stations_atomic+0xd4/0x200 [mac80211]
 ath12k_mac_op_set_bitrate_mask+0x5d2/0x1080 [ath12k]
 ? ath12k_mac_vif_chan+0x320/0x320 [ath12k]
 drv_set_bitrate_mask+0x267/0x470 [mac80211]
 ieee80211_set_bitrate_mask+0x4cc/0x8a0 [mac80211]
 ? __this_cpu_preempt_check+0x13/0x20
 nl80211_set_tx_bitrate_mask+0x2bc/0x530 [cfg80211]
 ? nl80211_parse_tx_bitrate_mask+0x2320/0x2320 [cfg80211]
 ? trace_contention_end+0xef/0x140
 ? rtnl_unlock+0x9/0x10
 ? nl80211_pre_doit+0x557/0x800 [cfg80211]
 genl_family_rcv_msg_doit+0x1f0/0x2e0
 ? genl_family_rcv_msg_attrs_parse.isra.0+0x250/0x250
 ? ns_capable+0x57/0xd0
 genl_family_rcv_msg+0x34c/0x600
 ? genl_family_rcv_msg_dumpit+0x310/0x310
 ? __lock_acquire+0xc62/0x1de0
 ? he_set_mcs_mask.isra.0+0x8d0/0x8d0 [cfg80211]
 ? nl80211_parse_tx_bitrate_mask+0x2320/0x2320 [cfg80211]
 ? cfg80211_external_auth_request+0x690/0x690 [cfg80211]
 genl_rcv_msg+0xa0/0x130
 netlink_rcv_skb+0x14c/0x400
 ? genl_family_rcv_msg+0x600/0x600
 ? netlink_ack+0xd70/0xd70
 ? rwsem_optimistic_spin+0x4f0/0x4f0
 ? genl_rcv+0x14/0x40
 ? down_read_killable+0x580/0x580
 ? netlink_deliver_tap+0x13e/0x350
 ? __this_cpu_preempt_check+0x13/0x20
 genl_rcv+0x23/0x40
 netlink_unicast+0x45e/0x790
 ? netlink_attachskb+0x7f0/0x7f0
 netlink_sendmsg+0x7eb/0xdb0
 ? netlink_unicast+0x790/0x790
 ? __this_cpu_preempt_check+0x13/0x20
 ? selinux_socket_sendmsg+0x31/0x40
 ? netlink_unicast+0x790/0x790
 __sock_sendmsg+0xc9/0x160
 ____sys_sendmsg+0x620/0x990
 ? kernel_sendmsg+0x30/0x30
 ? __copy_msghdr+0x410/0x410
 ? __kasan_check_read+0x11/0x20
 ? mark_lock+0xe6/0x1470
 ___sys_sendmsg+0xe9/0x170
 ? copy_msghdr_from_user+0x120/0x120
 ? __lock_acquire+0xc62/0x1de0
 ? do_fault_around+0x2c6/0x4e0
 ? do_user_addr_fault+0x8c1/0xde0
 ? reacquire_held_locks+0x220/0x4d0
 ? do_user_addr_fault+0x8c1/0xde0
 ? __kasan_check_read+0x11/0x20
 ? __fdget+0x4e/0x1d0
 ? sockfd_lookup_light+0x1a/0x170
 __sys_sendmsg+0xd2/0x180
 ? __sys_sendmsg_sock+0x20/0x20
 ? reacquire_held_locks+0x4d0/0x4d0
 ? debug_smp_processor_id+0x17/0x20
 __x64_sys_sendmsg+0x72/0xb0
 ? lockdep_hardirqs_on+0x7d/0x100
 x64_sys_call+0x894/0x9f0
 do_syscall_64+0x64/0x130
 entry_SYSCALL_64_after_hwframe+0x4b/0x53
RIP: 0033:0x7f230fe04807
Code: 64 89 02 48 c7 c0 ff ff ff ff eb bb 0f 1f 80 00 00 00 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
RSP: 002b:00007ffe996a7ea8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000556f9f9c3390 RCX: 00007f230fe04807
RDX: 0000000000000000 RSI: 00007ffe996a7ee0 RDI: 0000000000000003
RBP: 0000556f9f9c88c0 R08: 0000000000000002 R09: 0000000000000000
R10: 0000556f965ca190 R11: 0000000000000246 R12: 0000556f9f9c8780
R13: 00007ffe996a7ee0 R14: 0000556f9f9c87d0 R15: 0000556f9f9c88c0
 </TASK>

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

Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20241007165932.78081-2-kvalo@kernel.org
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-11 07:21:54 -07:00
Dinesh Karthikeyan
15d91424ea wifi: ath12k: Support Pdev OBSS Stats
Add support to request pdev OBSS stats from firmware through stats
type 23. These stats give information about PPDUs transmitted or
tried to be transmitted in Spatial Reuse Groups(SRG), Parameterized
Spatial Reuse(PSR) and non-PSR groups.

Sample output:
-------------
echo 23 > /sys/kernel/debug/ath12k/pci-0000\:06\:00.0/mac0/htt_stats_type
cat /sys/kernel/debug/ath12k/pci-0000\:06\:00.0/mac0/htt_stats
HTT_PDEV_OBSS_PD_STATS_TLV:
num_spatial_reuse_tx = 0
num_spatial_reuse_opportunities = 0
num_non_srg_opportunities = 0
num_non_srg_ppdu_tried = 0
.....

HTT_PDEV_OBSS_PD_PER_AC_STATS:
Access Category 0 (best effort)
num_non_srg_ppdu_tried = 0
num_non_srg_ppdu_success = 0
num_srg_ppdu_tried = 0
num_srg_ppdu_success = 0

Access Category 1 (background)
num_non_srg_ppdu_tried = 0
num_non_srg_ppdu_success = 0
num_srg_ppdu_tried = 0
num_srg_ppdu_success = 0
.....

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.1.1-00214-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4

Signed-off-by: Dinesh Karthikeyan <quic_dinek@quicinc.com>
Signed-off-by: Roopni Devanathan <quic_rdevanat@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://patch.msgid.link/20241005104206.3327143-1-quic_rdevanat@quicinc.com
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-11 07:21:53 -07:00
Dinesh Karthikeyan
3f5ecfc450 wifi: ath12k: Support pdev CCA Stats
Add support to request CCA stats for physical devices from firmware
through HTT stats type 19. These stats give information about
channel number, number of records, counters' bitmap, collection
interval and different CCA counters.

Sample output:
-------------
echo 19 > /sys/kernel/debug/ath12k/pci-0000\:06\:00.0/mac0/htt_stats_type
cat /sys/kernel/debug/ath12k/pci-0000\:06\:00.0/mac0/htt_stats
HTT_PDEV_CCA_STATS_HIST_TLV (1s):
chan_num = 5955
num_records = 10
valid_cca_counters_bitmap = 0xff
collection_interval = 1000

HTT_PDEV_STATS_CCA_COUNTERS_TLV:(in usec)
tx_frame_usec = 0
rx_frame_usec = 0
rx_clear_usec = 999955
my_rx_frame_usec = 0
usec_cnt = 999955
med_rx_idle_usec = 0
med_tx_idle_global_usec = 0
cca_obss_usec = 999955
.....

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4

Signed-off-by: Dinesh Karthikeyan <quic_dinek@quicinc.com>
Signed-off-by: Roopni Devanathan <quic_rdevanat@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://patch.msgid.link/20241005101816.3314728-5-quic_rdevanat@quicinc.com
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-11 07:21:53 -07:00
Dinesh Karthikeyan
6f27b59af1 wifi: ath12k: Support pdev Transmit Multi-user stats
Add support to request multi-user stats from firmware for transmitter
through HTT stats type 17. These stats give information about multi-
user MIMO, OFDMA and MPDU for different Wi-Fi standards.

Sample output:
-------------
echo 17 > /sys/kernel/debug/ath12k/pci-0000\:06\:00.0/mac0/htt_stats_type
cat /sys/kernel/debug/ath12k/pci-0000\:06\:00.0/mac0/htt_stats
HTT_TX_PDEV_MU_MIMO_SCH_STATS_TLV:
mu_mimo_sch_posted = 0
mu_mimo_sch_failed = 0
mu_mimo_ppdu_posted = 0

ac_mu_mimo_sch_posted_per_group_index 0 (SU) = 0
ac_mu_mimo_sch_posted_per_group_index 1 (TOTAL STREAMS = 2) = 0
.....

ax_mu_mimo_sch_posted_per_group_index 0 (SU) = 0
ax_mu_mimo_sch_posted_per_group_index 1 (TOTAL STREAMS = 2) = 0
.....

be_mu_mimo_sch_posted_per_group_index 0 (SU) = 0
be_mu_mimo_sch_posted_per_group_index 1 (TOTAL STREAMS = 2) = 0
.....

11ac MU_MIMO SCH STATS:
ac_mu_mimo_sch_nusers_0 = 0
ac_mu_mimo_sch_nusers_1 = 0
ac_mu_mimo_sch_nusers_2 = 0
ac_mu_mimo_sch_nusers_3 = 0

11ax MU_MIMO SCH STATS:
ax_mu_mimo_sch_nusers_0 = 0
ax_mu_mimo_sch_nusers_1 = 0
ax_mu_mimo_sch_nusers_2 = 0
.....

11be MU_MIMO SCH STATS:
be_mu_mimo_sch_nusers_0 = 0
be_mu_mimo_sch_nusers_1 = 0
be_mu_mimo_sch_nusers_2 = 0
.....

11ax OFDMA SCH STATS:
ax_ofdma_sch_nusers_0 = 0
ax_ul_ofdma_basic_sch_nusers_0 = 0
ax_ul_ofdma_bsr_sch_nusers_0 = 0
ax_ul_ofdma_bar_sch_nusers_0 = 0
ax_ul_ofdma_brp_sch_nusers_0 = 0
.....

11ax UL MUMIMO SCH STATS:
ax_ul_mumimo_basic_sch_nusers_0 = 0
ax_ul_mumimo_brp_sch_nusers_0 = 0

ax_ul_mumimo_basic_sch_nusers_1 = 0
ax_ul_mumimo_brp_sch_nusers_1 = 0
.....

HTT_TX_PDEV_MUMIMO_GRP_STATS:
dl_mumimo_grp_tputs_observed (per bin = 300 mbps) =  0:0, 1:0, 2:0, 3:0,
4:0, 5:0, 6:0, 7:0, 8:0, 9:0
dl_mumimo_grp eligible =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0
dl_mumimo_grp_ineligible =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0
.....

HTT_TX_PDEV_MU_MIMO_AC_MPDU_STATS:
ac_mu_mimo_mpdus_queued_usr_0 = 0
ac_mu_mimo_mpdus_tried_usr_0 = 0
ac_mu_mimo_mpdus_failed_usr_0 = 0
.....

HTT_TX_PDEV_MU_MIMO_AX_MPDU_STATS:
ax_mu_mimo_mpdus_queued_usr_0 = 0
ax_mu_mimo_mpdus_tried_usr_0 = 0
ax_mu_mimo_mpdus_failed_usr_0 = 0
.....

HTT_TX_PDEV_AX_MU_OFDMA_MPDU_STATS:
ax_mu_ofdma_mpdus_queued_usr_0 = 0
ax_mu_ofdma_mpdus_tried_usr_0 = 0
ax_mu_ofdma_mpdus_failed_usr_0 = 0
.....

11ac MU_MIMO SCH STATS:
ac_mu_mimo_sch_nusers_0 = 0
ac_mu_mimo_sch_nusers_1 = 0
ac_mu_mimo_sch_nusers_2 = 0
ac_mu_mimo_sch_nusers_3 = 0
.....

Note: MCC firmware version -
WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4 does not
print stats because MCC firmware reports an event, but there are no
tags or data. The length of the received TLV is 0.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.1.1-00214-QCAHKSWPL_SILICONZ-1

Signed-off-by: Dinesh Karthikeyan <quic_dinek@quicinc.com>
Signed-off-by: Roopni Devanathan <quic_rdevanat@quicinc.com>
Link: https://patch.msgid.link/20241005101816.3314728-4-quic_rdevanat@quicinc.com
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-11 07:21:53 -07:00
Dinesh Karthikeyan
7e4eed987d wifi: ath12k: Support Ring and SFM stats
Add support to request ring and SFM stats from firmware through HTT stats
type 15 and 16 respectively. These stats give information such as ring
size, ring address, valid number of words in ring, etc., for stats type 15
and SFM buffer information, number of users, words used by users, etc.,
for stat type 16.

Sample output:
-------------
echo 15 > /sys/kernel/debug/ath12k/pci-0000\:06\:00.0/mac0/htt_stats_type
cat /sys/kernel/debug/ath12k/pci-0000\:06\:00.0/mac0/htt_stats
HTT_STATS_STRING_TLV:
data = TCL_GSE_CMD_RING

HTT_SRING_STATS_TLV:
mac_id = 0
ring_id = 0
arena = 8
.....

echo 16 > /sys/kernel/debug/ath12k/pci-0000\:06\:00.0/mac0/htt_stats_type
cat /sys/kernel/debug/ath12k/pci-0000\:06\:00.0/mac0/htt_stats
HTT_SFM_CMN_TLV:
mac_id = 0
buf_total = 1760
mem_empty = 32895
.....

HTT_STATS_STRING_TLV:
data = PMAC_SFM_CLIENT0_RXPCU0

HTT_SFM_CLIENT_TLV:
client_id = 0
buf_min = 148
buf_max = 445
.....

HTT_SFM_CLIENT_USER_TLV:
dwords_used_by_user_n =  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

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-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: Dinesh Karthikeyan <quic_dinek@quicinc.com>
Signed-off-by: Roopni Devanathan <quic_rdevanat@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://patch.msgid.link/20241005101816.3314728-3-quic_rdevanat@quicinc.com
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-11 07:21:53 -07:00
Dinesh Karthikeyan
44cfb7c58e wifi: ath12k: Support Self-Generated Transmit stats
Add support to request transmit selfgen stats from firmware through HTT stats
type 12. These stats give information about single user NDP packets, multi-
user MIMO NDP packets, OFDMA triggers, etc.

Sample output:
-------------
echo 12 > /sys/kernel/debug/ath12k/pci-0000\:06\:00.0/mac0/htt_stats_type
cat /sys/kernel/debug/ath12k/pci-0000\:06\:00.0/mac0/htt_stats
HTT_TX_SELFGEN_CMN_STATS_TLV:
mac_id = 0
su_bar = 0
rts = 0
.....

HTT_TX_SELFGEN_AC_STATS_TLV:
ac_su_ndpa_tried = 0
ac_su_ndp_tried = 0
ac_mu_mimo_ndpa_tried = 0
.....

HTT_TX_SELFGEN_AX_STATS_TLV:
ax_su_ndpa_tried = 0
ax_su_ndp_tried = 0
ax_mu_mimo_ndpa_tried = 0
.....

HTT_TX_SELFGEN_BE_STATS_TLV:
be_su_ndpa_queued = 0
be_su_ndpa_tried = 0
be_su_ndp_queued = 0
.....

HTT_TX_SELFGEN_AC_ERR_STATS_TLV:
ac_su_ndp_err = 0
ac_su_ndpa_err = 0
ac_mu_mimo_ndpa_err = 0
.....

HTT_TX_SELFGEN_AX_ERR_STATS_TLV:
ax_su_ndp_err = 0
ax_su_ndpa_err = 0
ax_mu_mimo_ndpa_err = 0
.....

HTT_TX_SELFGEN_BE_ERR_STATS_TLV:
be_su_ndp_err = 0
be_su_ndp_flushed = 0
be_su_ndpa_err = 0
.....

HTT_TX_SELFGEN_AC_SCHED_STATUS_STATS_TLV:
ac_su_ndpa_sch_status =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0
ac_su_ndp_sch_status =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0
ac_mu_mimo_ndpa_sch_status =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0
.....

HTT_TX_SELFGEN_AX_SCHED_STATUS_STATS_TLV:
ax_su_ndpa_sch_status =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0
ax_su_ndp_sch_status =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0
ax_mu_mimo_ndpa_sch_status =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0
.....

HTT_TX_SELFGEN_BE_SCHED_STATUS_STATS_TLV:
be_su_ndpa_sch_status =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0
be_su_ndp_sch_status =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0
be_mu_mimo_ndpa_sch_status =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0
.....

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4

Signed-off-by: Dinesh Karthikeyan <quic_dinek@quicinc.com>
Signed-off-by: Roopni Devanathan <quic_rdevanat@quicinc.com>
Link: https://patch.msgid.link/20241005101816.3314728-2-quic_rdevanat@quicinc.com
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-11 07:21:53 -07:00
Balaji Pothunoori
4c57ec6c4b wifi: ath11k: Fix CE offset address calculation for WCN6750 in SSR
Currently, mem_ce and mem iomem addresses are used to calculate the
CE offset address. mem_ce is initialized with mem address, and for
targets where ce_remap is needed, mem_ce is remapped to a new address
space during AHB probe.

For targets such as WCN6750 in which CE address space is same as WCSS
address space (i.e. "ce_remap" hw_param is set to false), mem_ce and
mem iomem addresses are same. In the initial SRNG setup for such targets,
the CE offset address and hence CE register base addresses are
calculated correctly in ath11k_hal_srng_init() as both mem and mem_ce
are initialized with same iomem address.

Later, after the firmware download, mem is initialized with BAR address
received in qmi_wlanfw_device_info_resp_msg_v01 QMI message, while mem_ce
is not updated.

After initial setup success, during Subsystem Restart (SSR), as part
of reinitialization, ath11k_hal_srng_init() will be called again,
and CE offset address will be calculated incorrectly this time as mem_ce
address was not updated. Due to the incorrect CE offset address,
APPS accesses an invalid CE register address which leads to improper
behavior in firmware after SSR is triggered.

To fix the above issue, update mem_ce to mem iomem address in
ath11k_qmi_request_device_info() for targets which do not support
ce_remap feature.

Signed-off-by: Balaji Pothunoori <quic_bpothuno@quicinc.com>
Fixes: b42b3678c9 ("wifi: ath11k: remap ce register space for IPQ5018")
Link: https://patch.msgid.link/20240927095825.22317-1-quic_bpothuno@quicinc.com
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-08 07:36:40 -07:00
Arnd Bergmann
19c23eb61f wifi: ath12k: fix one more memcpy size error
A previous patch addressed a fortified-memcpy warning on older compilers,
but there is still a warning on gcc-14 in some configurations:

In file included from include/linux/string.h:390,
                 from drivers/net/wireless/ath/ath12k/wow.c:7:
drivers/net/wireless/ath/ath12k/wow.c: In function 'ath12k_wow_convert_8023_to_80211.isra':
include/linux/fortify-string.h:114:33: error: '__builtin_memcpy' accessing 18446744073709551610 or more bytes at offsets 0 and 0 overlaps 9223372036854775797 bytes at offset -9223372036854775803 [-Werror=restrict]
include/linux/fortify-string.h:679:26: note: in expansion of macro '__fortify_memcpy_chk'
  679 | #define memcpy(p, q, s)  __fortify_memcpy_chk(p, q, s,                  \
      |                          ^~~~~~~~~~~~~~~~~~~~
drivers/net/wireless/ath/ath12k/wow.c:199:25: note: in expansion of macro 'memcpy'
  199 |                         memcpy(pat + a3_ofs - pkt_ofs,
      |                         ^~~~~~

Address this the same way as the other two, using size_add().

Fixes: b49991d83b ("wifi: ath12k: fix build vs old compiler")
Fixes: 4a3c212eee ("wifi: ath12k: add basic WoW functionalities")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Kalle Valo <kvalo@kernel.org>
Link: https://patch.msgid.link/20241004095420.637091-1-arnd@kernel.org
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-07 14:07:36 -07:00
Roopni Devanathan
e985dc5502 wifi: ath12k: Modify print_array_to_buf() to support arrays with 1-based semantics
The API print_array_to_buf() currently supports printing
arrays with 0 indexing. In some cases, a few arrays need
to be printed with 1-based indexing, i.e., array should be
printed, starting with 1.

Add a new version of print_array_to_buf(), named
print_array_to_buf_index(), which implements the functionality
of print_array_to_index(), but with an extra variable, pointing
to the index starting with which the array should be printed.
Modify print_array_to_buf() to call
print_array_to_buf_index() with 0 as the starting index.

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

Signed-off-by: Roopni Devanathan <quic_rdevanat@quicinc.com>
Link: https://patch.msgid.link/20241004085915.1788951-1-quic_rdevanat@quicinc.com
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-07 14:07:35 -07:00
Rameshkumar Sundaram
bdb2811033 wifi: ath12k: fix use-after-free in ath12k_dp_cc_cleanup()
During ath12k module removal, in ath12k_core_deinit(),
ath12k_mac_destroy() un-registers ah->hw from mac80211 and frees
the ah->hw as well as all the ar's in it. After this
ath12k_core_soc_destroy()-> ath12k_dp_free()-> ath12k_dp_cc_cleanup()
tries to access one of the freed ar's from pending skb.

This is because during mac destroy, driver failed to flush few
data packets, which were accessed later in ath12k_dp_cc_cleanup()
and freed, but using ar from the packet led to this use-after-free.

BUG: KASAN: use-after-free in ath12k_dp_cc_cleanup.part.0+0x5e2/0xd40 [ath12k]
Write of size 4 at addr ffff888150bd3514 by task modprobe/8926
CPU: 0 UID: 0 PID: 8926 Comm: modprobe Not tainted
6.11.0-rc2-wt-ath+ #1746
Hardware name: Intel(R) Client Systems NUC8i7HVK/NUC8i7HVB, BIOS
HNKBLi70.86A.0067.2021.0528.1339 05/28/2021

Call Trace:
  <TASK>
  dump_stack_lvl+0x7d/0xe0
  print_address_description.constprop.0+0x33/0x3a0
  print_report+0xb5/0x260
  ? kasan_addr_to_slab+0x24/0x80
  kasan_report+0xd8/0x110
  ? ath12k_dp_cc_cleanup.part.0+0x5e2/0xd40 [ath12k]
  ? ath12k_dp_cc_cleanup.part.0+0x5e2/0xd40 [ath12k]
  kasan_check_range+0xf3/0x1a0
  __kasan_check_write+0x14/0x20
  ath12k_dp_cc_cleanup.part.0+0x5e2/0xd40 [ath12k]
  ath12k_dp_free+0x178/0x420 [ath12k]
  ath12k_core_stop+0x176/0x200 [ath12k]
  ath12k_core_deinit+0x13f/0x210 [ath12k]
  ath12k_pci_remove+0xad/0x1c0 [ath12k]
  pci_device_remove+0x9b/0x1b0
  device_remove+0xbf/0x150
  device_release_driver_internal+0x3c3/0x580
  ? __kasan_check_read+0x11/0x20
  driver_detach+0xc4/0x190
  bus_remove_driver+0x130/0x2a0
  driver_unregister+0x68/0x90
  pci_unregister_driver+0x24/0x240
  ? find_module_all+0x13e/0x1e0
  ath12k_pci_exit+0x10/0x20 [ath12k]
  __do_sys_delete_module+0x32c/0x580
  ? module_flags+0x2f0/0x2f0
  ? kmem_cache_free+0xf0/0x410
  ? __fput+0x56f/0xab0
  ? __fput+0x56f/0xab0
  ? debug_smp_processor_id+0x17/0x20
  __x64_sys_delete_module+0x4f/0x70
  x64_sys_call+0x522/0x9f0
  do_syscall_64+0x64/0x130
  entry_SYSCALL_64_after_hwframe+0x4b/0x53
RIP: 0033:0x7f8182c6ac8b

Commit 24de1b7b23 ("wifi: ath12k: fix flush failure in recovery
scenarios") added the change to decrement the pending packets count
in case of recovery which make sense as ah->hw as well all
ar's in it are intact during recovery, but during core deinit there
is no use in decrementing packets count or waking up the empty waitq
as the module is going to be removed also ar's from pending skb's
can't be used and the packets should just be released back.

To fix this, avoid accessing ar from skb->cb when driver is being
unregistered.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.1.1-00214-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Fixes: 24de1b7b23 ("wifi: ath12k: fix flush failure in recovery scenarios")
Signed-off-by: Rameshkumar Sundaram <quic_ramess@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://patch.msgid.link/20241001092652.3134334-1-quic_ramess@quicinc.com
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-10-07 14:07:35 -07:00
Ramya Gnanasekar
1a0c640ce1 wifi: ath12k: Skip Rx TID cleanup for self peer
During peer create, dp setup for the peer is done where Rx TID is
updated for all the TIDs. Peer object for self peer will not go through
dp setup.

When core halts, dp cleanup is done for all the peers. While cleanup,
rx_tid::ab is accessed which causes below stack trace for self peer.

WARNING: CPU: 6 PID: 12297 at drivers/net/wireless/ath/ath12k/dp_rx.c:851
Call Trace:
__warn+0x7b/0x1a0
ath12k_dp_rx_frags_cleanup+0xd2/0xe0 [ath12k]
report_bug+0x10b/0x200
handle_bug+0x3f/0x70
exc_invalid_op+0x13/0x60
asm_exc_invalid_op+0x16/0x20
ath12k_dp_rx_frags_cleanup+0xd2/0xe0 [ath12k]
ath12k_dp_rx_frags_cleanup+0xca/0xe0 [ath12k]
ath12k_dp_rx_peer_tid_cleanup+0x39/0xa0 [ath12k]
ath12k_mac_peer_cleanup_all+0x61/0x100 [ath12k]
ath12k_core_halt+0x3b/0x100 [ath12k]
ath12k_core_reset+0x494/0x4c0 [ath12k]

sta object in peer will be updated when remote peer is created. Hence
use peer::sta to detect the self peer and skip the cleanup.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Fixes: d889913205 ("wifi: ath12k: driver for Qualcomm Wi-Fi 7 devices")
Signed-off-by: Ramya Gnanasekar <quic_rgnanase@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20240905042851.2282306-1-quic_rgnanase@quicinc.com
2024-09-28 12:25:31 +03:00
Bartosz Golaszewski
02d697272c dt-bindings: net: ath11k: document the inputs of the ath11k on WCN6855
Describe the inputs from the PMU of the ath11k module on WCN6855.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20240814082301.8091-1-brgl@bgdev.pl
2024-09-28 12:20:25 +03:00
Nicolas Escande
3ed5cb8dfb wifi: ath12k: move txbaddr/rxbaddr into struct ath12k_dp
Those two fields are used to store the per SPT page of tx/rx descriptors send to
the firmware for cookie conversion. Right now they are in struct ath12k_spt_info
which means they are duplicated PPT page times while we only need one instance
of them. This works for now as we always use the first spt_info as a global
storage for all PPT pages.

Let's move them into struct ath12k_dp where they belong, alongside of the
spt_info array they are tied to, to avoid waisting a good bit of memory.

Tested-on: QCN9274 hw2.0 PCI CI_WLAN.WBE.1.3-03283.1-QCAHKSWPL_SILICONZ-2
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Signed-off-by: Nicolas Escande <nico.escande@gmail.com>
Reviewed-by: Remi Pommarel <repk@triplefau.lt>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20240830081942.3623380-1-nico.escande@gmail.com
2024-09-28 12:19:37 +03:00
Caleb Connolly
095cb94749 wifi: ath11k: allow missing memory-regions
On SC7280 platforms which are running with TrustZone, it is not
necessary to manually map the memory regions used by the wifi hardware.
However, ath11k will currently fail to load unless both memory regions
are specified.

This breaks wifi on the rb3gen2 which only specifies the firmware memory
region and does not use the CE region.

Adjust the order of operations in ath11k_ahb_fw_resources_init() to
check for the wifi-firmware subnode before attempting to parse the
memory regions.

Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Reviewed-by: Raj Kumar Bhagat <quic_rajkbhag@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20240904095815.1572186-2-caleb.connolly@linaro.org
2024-09-28 12:17:05 +03:00
Miaoqing Pan
6f15937833 wifi: ath11k: fix the stack frame size warning in ath11k_vif_wow_set_wakeups
Fix the following W=1 kernel build warning:

drivers/net/wireless/ath/ath11k/wow.c: In function ‘ath11k_vif_wow_set_wakeups’:
drivers/net/wireless/ath/ath11k/wow.c:461:1: warning: the frame size of 1352 bytes is larger than 1024 bytes [-Wframe-larger-than=]

Remove the nonessential variable 'struct cfg80211_pkt_pattern
old_pattern' by relocating bitmask to bytemask conversion into
ath11k_wow_convert_8023_to_80211().

Tested-on: WCN6855 hw2.1 PCI WLAN.HSP.1.1-04358-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1

Signed-off-by: Miaoqing Pan <quic_miaoqing@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20240829075253.657667-1-quic_miaoqing@quicinc.com
2024-09-28 12:16:29 +03:00