Commit Graph

195 Commits

Author SHA1 Message Date
Wen Gong 1370634054 ath11k: fix read fail for htt_stats and htt_peer_stats for single pdev
The pdev id is set to 0 for single pdev configured hardware, the real
pdev id is not 0 in firmware, for example, its pdev id is 1 for 5G/6G
phy and 2 for 2G band phy. For HTT_H2T_MSG_TYPE_EXT_STATS_CFG message,
firmware parse the pdev_mask to its pdev id, ath11k set it to 0 for
single pdev, it is not correct, need set it with the real pdev id of
firmware.

Save the real pdev id report by firmware and set it correctly.

Below commands run success with this patch:
cat /sys/kernel/debug/ieee80211/phy0/ath11k/htt_stats
cat /sys/kernel/debug/ieee80211/phy0/netdev\:wls1/stations/00\:03\:7f\:75\:59\:85/htt_peer_stats

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

Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211118095700.8149-1-quic_wgong@quicinc.com
2021-11-22 16:33:48 +02:00
Wen Gong 3db26ecf71 ath11k: calculate the correct NSS of peer for HE capabilities
When connected to 6G mode AP, it does not have VHT/HT capabilities,
so the NSS is not set, then it is 1 by default.

This patch is to calculate the NSS with supported HE-MCS and NSS set
of HE capabilities.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01280-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1

Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211118095453.8030-1-quic_wgong@quicinc.com
2021-11-22 16:33:10 +02:00
Karthikeyan Kathirvel 64bc3aa02a ath11k: reset RSN/WPA present state for open BSS
The ath11k driver is caching the information about RSN/WPA IE in the
configured beacon template. The cached information is used during
associations to figure out whether 4-way PKT/2-way GTK peer flags need to
be set or not.

But the code never cleared the state when no such IE was found. This can
for example happen when moving from an WPA/RSN to an open setup. The
(seemingly connected) peer was then not able to communicate over the
link because the firmware assumed a different (encryption enabled) state
for the peer.

Tested-on: IPQ6018 hw1.0 AHB WLAN.HK.2.5.0.1-01100-QCAHKSWPL_SILICONZ-1

Fixes: 01e34233c6 ("ath11k: fix wmi peer flags in peer assoc command")
Cc: Venkateswara Naralasetty <vnaralas@codeaurora.org>
Reported-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Karthikeyan Kathirvel <kathirve@codeaurora.org>
[sven@narfation.org: split into separate patches, clean up commit message]
Signed-off-by: Sven Eckelmann <sven@narfation.org>

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211115100441.33771-2-sven@narfation.org
2021-11-17 09:32:45 +02:00
Karthikeyan Kathirvel 436a4e8865 ath11k: clear the keys properly via DISABLE_KEY
DISABLE_KEY sets the key_len to 0, firmware will not delete the keys if
key_len is 0. Changing from security mode to open mode will cause mcast
to be still encrypted without vdev restart.

Set the proper key_len for DISABLE_KEY cmd to clear the keys in
firmware.

Tested-on: IPQ6018 hw1.0 AHB WLAN.HK.2.5.0.1-01100-QCAHKSWPL_SILICONZ-1

Fixes: d5c65159f2 ("ath11k: driver for Qualcomm IEEE 802.11ax devices")
Reported-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Karthikeyan Kathirvel <kathirve@codeaurora.org>
[sven@narfation.org: split into separate patches, clean up commit message]
Signed-off-by: Sven Eckelmann <sven@narfation.org>

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211115100441.33771-1-sven@narfation.org
2021-11-17 09:32:44 +02:00
John Crispin 886433a984 ath11k: add support for BSS color change
Whenever the MAC detects a color collision, or any of
its associated stations detects one, the firmware will
send out an event. Add the code to parse and handle
this event and pass the data up to mac80211.

The firmware does not provide an offload feature such
as the one used for CSA. The color change process is
hence triggered via the beacon offload tx completion
events sent out by firmware.

BSS color feature is enabled depending on service flag
advertised by firmware, based on which color change
functionality is invoked.

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.5.0.1-00680-QCAHKSWPL_SILICONZ-1

Signed-off-by: John Crispin <john@phrozen.org>
Co-developed-by: Lavanya Suresh <lavaks@codeaurora.org>
Signed-off-by: Lavanya Suresh <lavaks@codeaurora.org>
Signed-off-by: Rameshkumar Sundaram <quic_ramess@quicinc.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1635178254-17732-1-git-send-email-quic_ramess@quicinc.com
2021-11-17 09:32:06 +02:00
P Praneesh c0b0d2e87d ath11k: Increment pending_mgmt_tx count before tx send invoke
There is a race condition whereby the tx completion handler can be invoked
before the 'num_pending_mgmt_tx" count is incremented. If that occurs, we
could get warning trace indicating that 'num_pending_mgmt_tx' is 0 (because
it was not yet incremented). Ideally, this trace should be seen only if
mgmt tx has not happened but tx completion is received, and it is not
expected in this race condition.

Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.4.0.1-01386-QCAHKSWPL_SILICONZ-1

Co-developed-by: Lavanya Suresh <lavaks@codeaurora.org>
Signed-off-by: Lavanya Suresh <lavaks@codeaurora.org>
Signed-off-by: P Praneesh <quic_ppranees@quicinc.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1635168282-8845-1-git-send-email-quic_ppranees@quicinc.com
2021-11-15 11:25:52 +02:00
P Praneesh 9212c1b9e8 ath11k: send proper txpower and maxregpower values to firmware
Set proper values for max_regpower, max_power, max_antenna_gain as it
is because firmware will convert power values to 0.5dbm steps by
multiplying it with 2.

If txpower is not set, it will lead to cca stuck resulting in latency
issues for QCN9074.

Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.4.0.1-01386-QCAHKSWPL_SILICONZ-1

Co-developed-by: Lavanya Suresh <lavaks@codeaurora.org>
Signed-off-by: Lavanya Suresh <lavaks@codeaurora.org>
Signed-off-by: P Praneesh <quic_ppranees@quicinc.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1635164229-22880-1-git-send-email-quic_ppranees@quicinc.com
2021-11-15 11:25:23 +02:00
Wen Gong b4a0f54156 ath11k: move peer delete after vdev stop of station for QCA6390 and WCN6855
When station connect to AP, the wmi command sequence is:

peer_create->vdev_start->vdev_up

and sequence of station disconnect fo AP is:

peer_delete->vdev_down->vdev_stop

The sequence of disconnect is not opposite of connect, it caused firmware
crash when it handle wmi vdev stop cmd when the AP is support TWT of
802.11 ax, because firmware need access the bss peer for vdev stop cmd.

[  390.438564] ath11k_pci 0000:05:00.0: wmi cmd send 0x6001 ret 0
[  390.438567] ath11k_pci 0000:05:00.0: WMI peer create vdev_id 0 peer_addr c4:04:15:3b:e0:39
[  390.472724] ath11k_pci 0000:05:00.0: mac vdev 0 start center_freq 2437 phymode 11ax-he20-2g
[  390.472731] ath11k_pci 0000:05:00.0: wmi cmd send 0x5003 ret 0
[  390.560849] ath11k_pci 0000:05:00.0: wmi cmd send 0x5005 ret 0
[  390.560850] ath11k_pci 0000:05:00.0: WMI mgmt vdev up id 0x0 assoc id 1 bssid c4:04:15:3b:e0:39

[  399.432896] ath11k_pci 0000:05:00.0: WMI peer delete vdev_id 0 peer_addr c4:04:15:3b:e0:39
[  399.432902] ath11k_pci 0000:05:00.0: wmi cmd send 0x6002 ret 0
[  399.441380] ath11k_pci 0000:05:00.0: wmi cmd send 0x5007 ret 0
[  399.441381] ath11k_pci 0000:05:00.0: WMI vdev down id 0x0
[  399.454681] ath11k_pci 0000:05:00.0: wmi cmd send 0x5006 ret 0
[  399.454682] ath11k_pci 0000:05:00.0: WMI vdev stop id 0x0

The opposite sequence of disconnect should be:

vdev_down->vdev_stop->peer_delete

This patch change the sequence of disconnect for station as above
opposite sequence for QCA6390, firmware not crash again with this patch.

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

Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211027093825.12167-1-quic_wgong@quicinc.com
2021-11-15 11:24:24 +02:00
Wen Gong 1d795645e1 ath11k: remove return for empty tx bitrate in mac_op_sta_statistics
Currently in ath11k_mac_op_sta_statistics() there is the following
logic:

    if (!arsta->txrate.legacy && !arsta->txrate.nss)
        return;

Unfortunately if this condition is true then the function returns without
setting parameters that follow the txrate. To address this issue remove the
return and instead invert the logic to set the txrate logic if
(arsta->txrate.legacy || arsta->txrate.nss).

The same was done also in ath10k in commit 1cd6ba8ae3 ("ath10k: remove return
for NL80211_STA_INFO_TX_BITRATE").

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

Signed-off-by: Wen Gong <wgong@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211011084957.31024-1-wgong@codeaurora.org
2021-11-15 11:23:26 +02:00
Wen Gong 78406044bd ath11k: enable IEEE80211_VHT_EXT_NSS_BW_CAPABLE if NSS ratio enabled
When NSS ratio enabled reported by firmware, SUPPORTS_VHT_EXT_NSS_BW
is set in ath11k, meanwhile IEEE80211_VHT_EXT_NSS_BW_CAPABLE also
need to be set, otherwise it is invalid because spec in IEEE Std
802.11™‐2020 as below.

Table 9-273-Supported VHT-MCS and NSS Set subfields, it has subfield
VHT Extended NSS BW Capable, its definition is:
Indicates whether the STA is capable of interpreting the Extended NSS
BW Support subfield of the VHT Capabilities Information field.

dmesg have a message without this patch:

ieee80211 phy0: copying sband (band 1) due to VHT EXT NSS BW flag

It means mac80211 will set IEEE80211_VHT_EXT_NSS_BW_CAPABLE if ath11k not
set it in ieee80211_register_hw(). So it is better to set it in ath11k.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1

Signed-off-by: Wen Gong <wgong@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211013073704.15888-1-wgong@codeaurora.org
2021-11-15 11:23:05 +02:00
P Praneesh bcef57ea40 ath11k: add branch predictors in dp_tx path
Add branch prediction in dp_tx code path in tx and tx completion handlers.
Also in ath11k_dp_tx_complete_msdu , the pointer that is returned by
rcu_dereference() is not dereferenced. so it is preferable to use
rcu_access_pointer() here.

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

Co-developed-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: P Praneesh <ppranees@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1630560820-21905-12-git-send-email-ppranees@codeaurora.org
2021-11-15 11:21:56 +02:00
Venkateswara Naralasetty f187fe8e3b ath11k: fix firmware crash during channel switch
Currently the updated bandwidth for the peer will be configured
to the firmware after channel switch from the sta_rc_update_wk.
If the updated bandwidth is greater than the configured peer phymode
during the peer assoc may result firmware assert.

For example, initially AP is in HE40 mode and the peer phymode is
configured as MODE_11AX_HE40 during peer assoc. Now user change the
channel width to HE80 then, the peer bandwidth will be updated as
HE80 to the firmware.

This will trigger firmware assert due to peer bandwidth is greater than
the peer phymode.

Fix this issue by sending peer assoc command before setting the updated
peer bandwith to firmware.

Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.5.0.1-01100-QCAHKSWPL_SILICONZ-1

Signed-off-by: Venkateswara Naralasetty <quic_vnaralas@quicinc.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1636644002-25446-1-git-send-email-quic_vnaralas@quicinc.com
2021-11-15 11:21:16 +02:00
Seevalamuthu Mariappan 624e0a3170 ath11k: Fix 'unused-but-set-parameter' error
Below compilation error is reported when built with W=1,

drivers/net/wireless/ath/ath11k/mac.c:5408:22: error: parameter 'changed_flags' set but not used [-Werror,-Wunused-but-set-parameter]

changed_flags is set, but left unused. So, remove unnecessary set.
Compile tested only.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Seevalamuthu Mariappan <quic_seevalam@quicinc.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1636609967-5114-1-git-send-email-quic_seevalam@quicinc.com
2021-11-15 11:18:25 +02:00
Karthikeyan Periyasamy 4ea03443ec ath11k: fix error routine when fallback of add interface fails
When there is an error in add interface process from
ath11k_mac_set_kickout(), the code attempts to handle a
fallback for add_interface. When this fallback succeeds, the
driver returns zero rather than error code. This leads to
success for the non created VAP. In cleanup, driver gets
remove interface callback for the non created VAP and
proceeds to self peer delete request which leads to FW assert.
Since it was already deleted on the fallback of add interface,
return the actual error code instead of fallback return code.

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.5.0.1-00729-QCAHKSWPL_SILICONZ-3 v2

Signed-off-by: Karthikeyan Periyasamy <quic_periyasa@quicinc.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1636558557-2874-1-git-send-email-quic_periyasa@quicinc.com
2021-11-15 11:15:43 +02:00
Karthikeyan Periyasamy 85f36923be ath11k: fix fw crash due to peer get authorized before key install
Firmware expects host to authorize the peer after the successful key
install. But host authorize the peer before the key install, this trigger
the firmware assert which leads to Q6 crash. To avoid this Q6 crash, host
should authorize the peer after the key install. So introduce is_authorized
in peer object to identify that peer is authorize or not. When
IEEE80211_STA_CONTROL_PORT flag is unset, peer move to authorize state
before the vdev up. When the same flag is set then peer move to authorize
state after vdev up. So added authorise check in ath11k_bss_assoc() to
handle the earlier state transition case. Also added the WMI authorize
procedure in ath11k_mac_op_sta_state() to handle the non-earlier state
transition case.

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

Signed-off-by: Karthikeyan Periyasamy <quic_periyasa@quicinc.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1636554200-12345-1-git-send-email-quic_periyasa@quicinc.com
2021-11-15 11:14:58 +02:00
Rameshkumar Sundaram c802b6d781 ath11k: Clear auth flag only for actual association in security mode
AUTH flag is needed when peer assoc command is sent from host in
security mode for non-assoc cases. Firmware will handle AUTH flag
when client is associating as AUTH flag will be set after key exchange.
For internally provided peer assoc commands from host, there won't be
any key exchange, so AUTH flag is expected to be set in host.

Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.4.0.1-01838-QCAHKSWPL_SILICONZ-1

Co-developed-by: Lavanya Suresh <lavaks@codeaurora.org>
Signed-off-by: Lavanya Suresh <lavaks@codeaurora.org>
Signed-off-by: Rameshkumar Sundaram <quic_ramess@quicinc.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1635177786-20854-1-git-send-email-quic_ramess@quicinc.com
2021-11-12 10:01:48 +02:00
Carl Huang b2beffa7d9 ath11k: enable 802.11 power save mode in station mode
To reduce power consumption enable 802.11 power save mode in station mode. This
allows both radio and CPU to sleep more.

Only enable the mode on QCA6390 and WCN6855, it's unknown how other hardware
families support this feature.

To test that power save mode is running run "iw dev wls1 set power_save off",
check there is no NULL Data frame seen by a sniffer. And run "iw dev wls1 set power_save
on" and check there is a NULL Data frame in sniffer.

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

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211108123826.8463-2-kvalo@codeaurora.org
2021-11-10 14:40:38 +02:00
Kalle Valo af3d89649b ath11k: convert ath11k_wmi_pdev_set_ps_mode() to use enum wmi_sta_ps_mode
It's more descriptive to use the actual enum used by the firmware instead of a
boolean so change ath11k_wmi_pdev_set_ps_mode() to use a boolean.

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

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211108123826.8463-1-kvalo@codeaurora.org
2021-11-10 14:40:37 +02:00
Wen Gong 82c434c103 ath11k: set correct NL80211_FEATURE_DYNAMIC_SMPS for WCN6855
Commit 6f4d70308e ("ath11k: support SMPS configuration for 6 GHz") changed
"if (ht_cap & WMI_HT_CAP_DYNAMIC_SMPS)" to "if (ht_cap &
WMI_HT_CAP_DYNAMIC_SMPS || ar->supports_6ghz)" which means
NL80211_FEATURE_DYNAMIC_SMPS is enabled for all chips which support 6 GHz.
However, WCN6855 supports 6 GHz but it does not support feature
NL80211_FEATURE_DYNAMIC_SMPS, and this can lead to MU-MIMO test failures for
WCN6855.

Disable NL80211_FEATURE_DYNAMIC_SMPS for WCN6855 since its ht_cap does not
support WMI_HT_CAP_DYNAMIC_SMPS. Enable the feature only on QCN9074 as that's
the only other device supporting 6 GHz band.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1

Signed-off-by: Wen Gong <wgong@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210914163726.38604-3-jouni@codeaurora.org
2021-11-01 16:13:36 +02:00
Kalle Valo 8347c80600 Merge ath-next from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
ath.git patches for v5.16. Major changes:

ath9k

* add option to reset the wifi chip via debugfs

* convert Device Tree bindings to the json-schema

* support Device Tree ieee80211-freq-limit property to limit channels
2021-10-20 11:56:50 +03:00
Baochen Qiang 31582373a4 ath11k: Change number of TCL rings to one for QCA6390
Some targets, QCA6390 for example, use only one TCL ring, it is better to
initialize only one ring and leave others untouched for such targets.

This is a theoretical fix found during code review, no visible impact.

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

Signed-off-by: Baochen Qiang <bqiang@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210914163726.38604-1-jouni@codeaurora.org
2021-10-11 18:12:21 +03:00
Kalle Valo 16bdce2ada ath11k: fix m68k and xtensa build failure in ath11k_peer_assoc_h_smps()
Stephen reported that ath11k was failing to build on m68k and xtensa:

In file included from <command-line>:0:0:
In function 'ath11k_peer_assoc_h_smps',
    inlined from 'ath11k_peer_assoc_prepare' at drivers/net/wireless/ath/ath11k/mac.c:2362:2:
include/linux/compiler_types.h:317:38: error: call to '__compiletime_assert_650' declared with attribute error: FIELD_GET: type of reg too small for mask
  _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
                                      ^
include/linux/compiler_types.h:298:4: note: in definition of macro '__compiletime_assert'
    prefix ## suffix();    \
    ^
include/linux/compiler_types.h:317:2: note: in expansion of macro '_compiletime_assert'
  _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
  ^
include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
 #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
                                     ^
include/linux/bitfield.h:52:3: note: in expansion of macro 'BUILD_BUG_ON_MSG'
   BUILD_BUG_ON_MSG((_mask) > (typeof(_reg))~0ull,  \
   ^
include/linux/bitfield.h:108:3: note: in expansion of macro '__BF_FIELD_CHECK'
   __BF_FIELD_CHECK(_mask, _reg, 0U, "FIELD_GET: "); \
   ^
drivers/net/wireless/ath/ath11k/mac.c:2079:10: note: in expansion of macro 'FIELD_GET'
   smps = FIELD_GET(IEEE80211_HE_6GHZ_CAP_SM_PS,

Fix the issue by using le16_get_bits() to specify the size explicitly.

Fixes: 6f4d70308e ("ath11k: support SMPS configuration for 6 GHz")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-08 16:13:53 +01:00
Colin Ian King 567ec33a76 ath11k: Fix spelling mistake "incompaitiblity" -> "incompatibility"
There is a spelling mistake in an ath11k_warn message. Fix it.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211006083217.349596-1-colin.king@canonical.com
2021-10-07 17:52:20 +03:00
Pradeep Kumar Chitrapu 6f4d70308e ath11k: support SMPS configuration for 6 GHz
Parse SMPS configuration from IEs and configure. Without this,
SMPS is not enabled for 6 GHz band.

Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.4.0.1-01386-QCAHKSWPL_SILICONZ-1

Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210913175510.193005-3-jouni@codeaurora.org
2021-09-28 16:59:55 +03:00
Pradeep Kumar Chitrapu c3a7d7eb4c ath11k: add 6 GHz params in peer assoc command
Currently A-MPDU aggregation parameters are not being configured
during peer association for 6 GHz band. Hence, extract these
parameters from station's capabilities received in association
request and send to firmware. Without this, A-MPDU aggregation
is not happening in 6 GHz band.

Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.4.0.1-01386-QCAHKSWPL_SILICONZ-1

Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210913175510.193005-2-jouni@codeaurora.org
2021-09-28 16:59:54 +03:00
Wen Gong 62db14ea95 ath11k: indicate to mac80211 scan complete with aborted flag for ATH11K_SCAN_STARTING state
Scan failure can not be recovered from when running a loop of the
following steps:
1. run scan: "iw wlan scan".
2. run command: echo assert > /sys/kernel/debug/ath11k/qca6490\ hw2.0/simulate_fw_crash
   immediately after step 1.

result:
scan failed and can not recover even when wlan recovery succeeds:
command failed: Device or resource busy (-16)

reason:
When scan arrives, WMI_START_SCAN_CMDID is sent to the firmware and
function ath11k_mac_op_hw_scan() returns, then simulate_fw_crash arrives
and the scan started event does not arrive, and then it starts to do
recovery of wlan. __ath11k_mac_scan_finish() which is called from
ath11k_core_halt() is one step of recovery, it will not call
ieee80211_scan_completed() by logic currently because the scan state is
ATH11K_SCAN_STARTING. Thus it leads the scan not being completed in
mac80211, and leads all consecutive scans failing with -EBUSY in
nl80211_trigger_scan even after wlan recovery success.

Indicate scan complete with aborted flag to mac80211 for
ATH11K_SCAN_STARTING to allow recovery from scan failed with "Device or
resource busy (-16)" after wlan recovery.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1

Signed-off-by: Wen Gong <wgong@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210914164226.38843-3-jouni@codeaurora.org
2021-09-28 16:57:38 +03:00
Wen Gong 74bba5e5ba ath11k: enable 6G channels for WCN6855
For some chips such as WCN6855, single_pdev_only is set in struct
ath11k_hw_params which means ath11k calls ieee80211_register_hw() only
once and create only one device interface, and that device interface
supports all 2G/5G/6G channels.

ath11k_mac_setup_channels_rates() sets up the channels and it is called
for each device interface. It is called only once for single_pdev_only,
and then set up all channels for 2G/5G/6G. The logic of
ath11k_mac_setup_channels_rates() is not suitable for single_pdev_only,
it leads to all 6G channels being disabled for the device interface
which is single_pdev_only such as WCN6855.

Add channel frequency checks for the 6G band and enable the 6G channels
properly based on what is supported by the chip.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1

Signed-off-by: Wen Gong <wgong@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210804181217.88751-3-jouni@codeaurora.org
2021-09-28 16:22:21 +03:00
Wen Gong 54f40f552a ath11k: re-enable ht_cap/vht_cap for 5G band for WCN6855
WCN6855 uses single_pdev_only, so it supports both the 5G and 6G bands
in the same ath11k/pdev and it needs to enable ht_cap/vht_cap for the 5G
band, otherwise it will downgrade to non-HT mode for the 5G band. Some
chips like QCN9074 only support the 6G band, not the 5G band, and use
the flag ar->supports_6ghz which is true to discard ht_cap/vht_cap.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1

Signed-off-by: Wen Gong <wgong@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210804181217.88751-2-jouni@codeaurora.org
2021-09-28 16:22:20 +03:00
Pradeep Kumar Chitrapu b6b142f644 ath11k: fix survey dump collection in 6 GHz
When ath11k receives survey request, choose the 6 GHz band when enabled.
Without this, survey request does not include any 6 GHz band results,
thereby causing auto channel selection to fail.

Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.4.0.1-01386-QCAHKSWPL_SILICONZ-1

Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210722102054.43419-3-jouni@codeaurora.org
2021-09-28 16:16:55 +03:00
Pradeep Kumar Chitrapu 4a9550f536 ath11k: add channel 2 into 6 GHz channel list
Add support for the 6 GHz channel 2 with center frequency 5935 MHz and
operating class 136 per IEEE Std 802.11ax-2021, Table E-4.

Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210722102054.43419-1-jouni@codeaurora.org
2021-09-28 16:16:54 +03:00
Karthikeyan Periyasamy 79feedfea7 ath11k: Avoid "No VIF found" warning message
Facing below warning prints when we do wifi down in multiple VAPs scenario.

warning print:

ath11k c000000.wifi: No VIF found for vdev 2
...
ath11k c000000.wifi: No VIF found for vdev 0

In ath11k_mac_get_arvif_by_vdev_id(), we iterate all the radio to get the
arvif for the requested vdev_id through ath11k_mac_get_arvif().
ath11k_mac_get_arvif() throws a warning message if the given vdev_id is
not found in the given radio. So to avoid the warning message, add
the allocated_vdev_map cross check against the given vdev_id before using
ath11k_mac_get_arvif() to ensure that vdev_id is allocated in the
given radio.

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01492-QCAHKSWPL_SILICONZ-1
Tested-on: IPQ6018 hw1.0 AHB WLAN.HK.2.4.0.1-00330-QCAHKSWPL_SILICONZ-1

Signed-off-by: Karthikeyan Periyasamy <periyasa@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210721212029.142388-8-jouni@codeaurora.org
2021-09-28 13:57:35 +03:00
Seevalamuthu Mariappan 3c79cb4d63 ath11k: Assign free_vdev_map value before ieee80211_register_hw
Firmware crash is seen randomly, because of sending wrong vdev_id
in vdev_create command. This is due to free_vdev_map value being 0.
free_vdev_map is getting assigned after ieee80211_register_hw. In
some race conditions, add_interface api is getting called before
assigning value to free_vdev_map. Fix this by assigning free_vdev_map
before ieee80211_register_hw.

Also, moved ar->cc_freq_hz and ar->txmgmt_idr initialization before
ieee80211_register_hw to avoid such race conditions.

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.5.0.1-00948-QCAHKSWPL_SILICONZ-1
Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.4.0.1-01734-QCAHKSWPL_SILICONZ-1

Signed-off-by: Seevalamuthu Mariappan <seevalam@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210721212029.142388-6-jouni@codeaurora.org
2021-09-28 13:57:33 +03:00
Sriram R 1db2b0d0a3 ath11k: Avoid race during regd updates
Whenever ath11k is bootup with a user country already set, cfg80211
notifies this country info to ath11k soon after registration, where the
notification is sent to the firmware for fetching the rules of this user
country input.

Multiple race conditions could be seen in this scenario where a new
request is either lost as pointed in [1] or a new regd overwrites the
default regd provided by the firmware during bootup. Note that, the
default regd is used for intersection purpose and hence it should not be
overwritten.

The main reason as pointed by [1] is the usage of ATH11K_FLAG_REGISTERED
flag which is updated after completion of core registration, whereas the
reg notification from cfg80211 and wmi events for the corresponding
request can happen much before that. Since the ATH11K_FLAG_REGISTERED is
currently used to determine if the event containing reg rules belong to
default regd or for user request, there is a possibility of the default
regd getting overwritten.

Since the default reg rules will be received only once per pdev on
firmware load, the above flag based check can be replaced with a check
to see if default_regd is already set, so that we can now always update
the new_regd. Also if the new_regd is set, this will be always used to
update the reg rules for the registered phy.

[1] https://patchwork.kernel.org/project/linux-wireless/patch/1829665.1PRlr7bOQj@ripper/

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01460-QCAHKSWPL_SILICONZ-1
Fixes: d5c65159f2 ("ath11k: driver for Qualcomm IEEE 802.11ax devices")

Signed-off-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210721212029.142388-4-jouni@codeaurora.org
2021-09-28 13:57:32 +03:00
Sriram R 2167fa606c ath11k: Add support for RX decapsulation offload
Add support for rx decapsulation offload by advertising
the support to mac80211 during registration. Also ensure
the frames have the RX_FLAG_8023 flag set in decap offload
frames before passing to mac80211.

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

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

Ethernet decap can be enabled by using frame_mode modparam:

insmod ath11k frame_mode=2

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

Co-developed-by: Manikanta Pubbisetty <mpubbise@codeaurora.org>
Signed-off-by: Manikanta Pubbisetty <mpubbise@codeaurora.org>
Signed-off-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210721204217.120572-1-jouni@codeaurora.org
2021-09-28 13:56:28 +03:00
Arnd Bergmann eb19efed83 ath11k: Wstringop-overread warning
gcc-11 with the kernel address sanitizer prints a warning for this
driver:

In function 'ath11k_peer_assoc_h_vht',
    inlined from 'ath11k_peer_assoc_prepare' at drivers/net/wireless/ath/ath11k/mac.c:1632:2:
drivers/net/wireless/ath/ath11k/mac.c:1164:13: error: 'ath11k_peer_assoc_h_vht_masked' reading 16 bytes from a region of size 4 [-Werror=stringop-overread]
 1164 |         if (ath11k_peer_assoc_h_vht_masked(vht_mcs_mask))
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/wireless/ath/ath11k/mac.c: In function 'ath11k_peer_assoc_prepare':
drivers/net/wireless/ath/ath11k/mac.c:1164:13: note: referencing argument 1 of type 'const u16 *' {aka 'const short unsigned int *'}
drivers/net/wireless/ath/ath11k/mac.c:969:1: note: in a call to function 'ath11k_peer_assoc_h_vht_masked'
  969 | ath11k_peer_assoc_h_vht_masked(const u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

According to analysis from gcc developers, this is a glitch in the
way gcc tracks the size of struct members. This should really get
fixed in gcc, but it's also easy to work around this instance
by changing the function prototype to no include the length of
the array.

Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99673
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210322160253.4032422-5-arnd@kernel.org
2021-09-28 12:03:27 +03:00
P Praneesh f552d6fd2f ath11k: add support for 80P80 and 160 MHz bandwidth
For 160 MHz, nss_ratio_enabled flag is added to indicate firmware
supports sending NSS ratio information from firmware as a part of
service ready ext event. Extract this NSS ratio info from service
ready ext event and save this information in ath11k_pdev_cap to
calculate NSS ratio.

Current firmware configurations support two types of NSS ratio
which is WMI_NSS_RATIO_1_NSS for QCN9074 and WMI_NSS_RATIO_1BY2_NSS
for IPQ8074. Based on this two configuration, max supported
NSS getting calculated.

Move ath11k_peer_assoc_h_phymode() before ath11k_peer_assoc_h_vht()
to get arg->peer_phymode updated.

Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.4.0.1-00097-QCAHKSWPL_SILICONZ-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01467-QCAHKSWPL_SILICONZ-1

Co-developed-by: Ganesh Sesetti <gseset@codeaurora.org>
Signed-off-by: Ganesh Sesetti <gseset@codeaurora.org>
Co-developed-by: Sathishkumar Muruganandam <murugana@codeaurora.org>
Signed-off-by: Sathishkumar Muruganandam <murugana@codeaurora.org>
Signed-off-by: P Praneesh <ppranees@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210721173615.75637-2-jouni@codeaurora.org
2021-09-28 11:51:51 +03:00
Miles Hu 61fe43e721 ath11k: add support for setting fixed HE rate/gi/ltf
Support setting fixed HE rate/gi/ltf values that we are now able to send
to the kernel using nl80211. The added code is reusing parts of the
existing code path already used for HT/VHT. The new helpers are
symmetric to how we do it for HT/VHT.

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.5.0.1-00235-QCAHKSWPL_SILICONZ-1

Signed-off-by: Miles Hu <milehu@codeaurora.org>
Co-developed-by: Aloka Dixit <alokad@codeaurora.org>
Signed-off-by: Aloka Dixit <alokad@codeaurora.org>
Co-developed-by: Lavanya Suresh <lavaks@codeaurora.org>
Signed-off-by: Lavanya Suresh <lavaks@codeaurora.org>
Co-developed-by: Pradeep Chitrapu <pradeepc@codeaurora.org>
Signed-off-by: Pradeep Chitrapu <pradeepc@codeaurora.org>
Signed-off-by: Venkateswara Naralasetty <vnaralas@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210721173615.75637-1-jouni@codeaurora.org
2021-09-28 11:51:51 +03:00
Seevalamuthu Mariappan 689a5e6fff ath11k: monitor mode clean up to use separate APIs
If monitor interface is enabled in co-exist mode, only local traffic are
captured. It's caused by missing monitor vdev in co-exist mode. So,
monitor mode clean up is done with separate Monitor APIs. For this,
introduce flags monitor_started and monitor_vdev_created.

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

Co-developed-by: Miles Hu <milehu@codeaurora.org>
Signed-off-by: Miles Hu <milehu@codeaurora.org>
Co-developed-by: Vasanthakumar Thiagarajan <vthiagar@codeaurora.org>
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@codeaurora.org>
Signed-off-by: Seevalamuthu Mariappan <seevalam@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210721162053.46290-4-jouni@codeaurora.org
2021-09-24 14:34:02 +03:00
Seevalamuthu Mariappan 64e06b78a9 ath11k: add separate APIs for monitor mode
Add separate APIs for monitor_vdev_create/monitor_vdev_delete
and monitor_vdev_start/monitor_vdev_stop.

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

Co-developed-by: Miles Hu <milehu@codeaurora.org>
Signed-off-by: Miles Hu <milehu@codeaurora.org>
Co-developed-by: Vasanthakumar Thiagarajan <vthiagar@codeaurora.org>
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@codeaurora.org>
Signed-off-by: Seevalamuthu Mariappan <seevalam@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210721162053.46290-3-jouni@codeaurora.org
2021-09-24 14:34:01 +03:00
Seevalamuthu Mariappan d37b486231 ath11k: move static function ath11k_mac_vdev_setup_sync to top
This is to prepare for monitor mode clean up.
No functional changes are done.

Co-developed-by: Miles Hu <milehu@codeaurora.org>
Signed-off-by: Miles Hu <milehu@codeaurora.org>
Co-developed-by: Vasanthakumar Thiagarajan <vthiagar@codeaurora.org>
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@codeaurora.org>
Signed-off-by: Seevalamuthu Mariappan <seevalam@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210721162053.46290-2-jouni@codeaurora.org
2021-09-24 14:34:00 +03:00
Karthikeyan Periyasamy e20cfa3b62 ath11k: fix 4addr multicast packet tx
In 4addr, AP wired backbone to STA wired backbone ping fails due to ARP
request not getting answered. Here 4addr ARP multicast packet is sent in
3addr, so that 4addr STA not honouring the 3addr ARP multicast packet.
Fix this issue by sending out multicast packet in 4addr format, firmware
expects peer meta flag instead of vdev meta flag in Tx descriptor.

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01641-QCAHKSWPL_SILICONZ-1

Signed-off-by: Karthikeyan Periyasamy <periyasa@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210720213147.90042-2-jouni@codeaurora.org
2021-09-16 12:15:40 +03:00
Sathishkumar Muruganandam 34c67dc366 ath11k: fix 4-addr tx failure for AP and STA modes
Ath11k FW requires peer parameter WMI_PEER_USE_4ADDR to be set for
4-addr peers allowing 4-address frame transmission to those peers.

Add ath11k driver callback for sta_set_4addr() to queue new workq
set_4addr_wk only once based on new boolean, use_4addr_set.

sta_set_4addr() will be called during 4-addr STA association cases
applicable for both AP and STA modes.

In ath11k_sta_set_4addr_wk(),

AP mode:
        WMI_PEER_USE_4ADDR will be set for the corresponding
        associated 4-addr STA(s)

STA mode:
        WMI_PEER_USE_4ADDR will be set for the AP to which the
        4-addr STA got associated.

Tested-on: IPQ8074 WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-1

Signed-off-by: Sathishkumar Muruganandam <murugana@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210720213147.90042-1-jouni@codeaurora.org
2021-09-16 12:15:40 +03:00
Kees Cook c8bcd82a4e ath11k: Avoid memcpy() over-reading of he_cap
In preparation for FORTIFY_SOURCE performing compile-time and run-time
field bounds checking for memcpy(), memmove(), and memset(), avoid
intentionally writing across neighboring array fields.

Since peer_he_cap_{mac,phy}info and he_cap_elem.{mac,phy}_cap_info are not
the same sizes, memcpy() was reading beyond field boundaries. Instead,
correctly cap the copy length and pad out any difference in size
(peer_he_cap_macinfo is 8 bytes whereas mac_cap_info is 6, and
peer_he_cap_phyinfo is 12 bytes whereas phy_cap_info is 11).

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210616195410.1232119-1-keescook@chromium.org
2021-06-22 18:28:00 +03:00
Seevalamuthu Mariappan 979ebc54cf ath11k: send beacon template after vdev_start/restart during csa
Firmware has added assert if beacon template is received after
vdev_down. Firmware expects beacon template after vdev_start
and before vdev_up. This change is needed to support MBSSID EMA
cases in firmware.

Hence, Change the sequence in ath11k as expected from firmware.
This new change is not causing any issues with older
firmware.

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.5.0.1.r3-00011-QCAHKSWPL_SILICONZ-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.5.0.1.r4-00008-QCAHKSWPL_SILICONZ-1

Fixes: d5c65159f2 ("ath11k: driver for Qualcomm IEEE 802.11ax devices")
Signed-off-by: Seevalamuthu Mariappan <seevalam@codeaurora.org>
[sven@narfation.org: added tested-on/fixes information]
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210525133028.2805615-1-sven@narfation.org
2021-06-15 17:05:19 +03:00
Sriram R c3944a5621 ath11k: Clear the fragment cache during key install
Currently the fragment cache setup during peer assoc is
cleared only during peer delete. In case a key reinstallation
happens with the same peer, the same fragment cache with old
fragments added before key installation could be clubbed
with fragments received after. This might be exploited
to mix fragments of different data resulting in a proper
unintended reassembled packet to be passed up the stack.

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

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

Cc: stable@vger.kernel.org
Signed-off-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Link: https://lore.kernel.org/r/20210511200110.218dc777836f.I9af6fc76215a35936c4152552018afb5079c5d8c@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2021-05-11 20:16:21 +02:00
David S. Miller 08322284c1 Another set of updates, all over the map:
* set sk_pacing_shift for 802.3->802.11 encap offload
  * some monitor support for 802.11->802.3 decap offload
  * HE (802.11ax) spec updates
  * userspace API for TDLS HE support
  * along with various other small features, cleanups and
    fixups
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Merge tag 'mac80211-next-for-net-next-2021-04-20' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes Berg says:

====================
Another set of updates, all over the map:
 * set sk_pacing_shift for 802.3->802.11 encap offload
 * some monitor support for 802.11->802.3 decap offload
 * HE (802.11ax) spec updates
 * userspace API for TDLS HE support
 * along with various other small features, cleanups and
   fixups
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-20 16:44:04 -07:00
Johannes Berg 1f851b8dfd wireless: align HE capabilities A-MPDU Length Exponent Extension
The A-MPDU length exponent extension is defined differently in
802.11ax D6.1, align with that.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210409123755.c2a257d3e2df.I3455245d388c52c61dace7e7958dbed7e807cfb6@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2021-04-19 12:50:15 +02:00
Johannes Berg 76cf422133 wireless: align some HE capabilities with the spec
Some names were changed, align that with the spec as of
802.11ax-D6.1.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210409123755.b1e5fbab0d8c.I3eb6076cb0714ec6aec6b8f9dee613ce4a05d825@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2021-04-19 12:50:15 +02:00
Kalle Valo 1193a7de6e Merge ath-next from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
ath.git patches for v5.13. Major changes:

ath11k

* add initial support for QCN9074, but not enabled yet due to firmware problems

* enable radar detection for 160MHz secondary segment

* handle beacon misses in station mode
2021-03-15 10:12:41 +02:00
Lavanya Suresh 26f6979237 ath11k: Add support for STA to handle beacon miss
When AP goes down without any indication to STA, firmware detects
missing beacon, and sends wmi roam event with reason BEACON_MISS
to the host.

Added support for STA mode to trigger disassociation from AP,
on receiving this event from firmware.

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01717-QCAHKSWPL_SILICONZ-1
Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Lavanya Suresh <lavaks@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1614340859-28867-1-git-send-email-lavaks@codeaurora.org
2021-03-09 13:02:16 +02:00
Sriram R f277eb0500 ath11k: Update signal filled flag during sta_statistics drv op
Currently, though the peer rssi information is updated to station dump
from driver sta_statistics mac op, the info doesn't get updated
since the NL80211_STA_INFO_SIGNAL filled flag is not set in station
info. Hence update this flag while filling the rssi info.

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

Signed-off-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210224090241.3098-1-srirrama@codeaurora.org
2021-03-09 13:01:03 +02:00
Miaoqing Pan 3808a18043 ath11k: fix potential wmi_mgmt_tx_queue race condition
There is a potential race condition between skb_queue_len()
and skb_queue_tail(), the former may get old value before
updated by the latter.

So use skb_queue_len_lockless() instead. And also use '>=',
in case we queue a few SKBs simultaneously.

Found while discussing a similar fix for ath10k:
https://patchwork.kernel.org/project/linux-wireless/patch/1608515579-1066-1-git-send-email-miaoqing@codeaurora.org/

No functional changes, compile tested only.

Signed-off-by: Miaoqing Pan <miaoqing@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1613630709-704-1-git-send-email-miaoqing@codeaurora.org
2021-02-24 08:53:08 +02:00
Kalle Valo 77d7e87128 ath11k: fix AP mode for QCA6390
Commit c134d1f8c4 ("ath11k: Handle errors if peer creation fails") completely
broke AP mode on QCA6390:

kernel: [  151.230734] ath11k_pci 0000:06:00.0: failed to create peer after vdev start delay: -22
wpa_supplicant[2307]: Failed to set beacon parameters
wpa_supplicant[2307]: Interface initialization failed
wpa_supplicant[2307]: wlan0: interface state UNINITIALIZED->DISABLED
wpa_supplicant[2307]: wlan0: AP-DISABLED
wpa_supplicant[2307]: wlan0: Unable to setup interface.
wpa_supplicant[2307]: Failed to initialize AP interface

This was because commit c134d1f8c4 ("ath11k: Handle errors if peer creation
fails") added error handling for ath11k_peer_create(), which had been failing
all along but was unnoticed due to the missing error handling. The actual bug
was introduced already in commit aa44b2f3ec ("ath11k: start vdev if a bss peer is
already created").

ath11k_peer_create() was failing because for AP mode the peer is created
already earlier op_add_interface() and we should skip creation here, but the
check for modes was wrong.  Fixing that makes AP mode work again.

This shouldn't affect IPQ8074 nor QCN9074 as they have hw_params.vdev_start_delay disabled.

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

Fixes: c134d1f8c4 ("ath11k: Handle errors if peer creation fails")
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1614006849-25764-1-git-send-email-kvalo@codeaurora.org
2021-02-24 08:38:11 +02:00
Lavanya Suresh 788f805e8c ath11k: Enable radar detection for 160MHz secondary segment
WMI_CHAN_INFO_DFS_FREQ2 needs to be set in wmi vdev start command chan
info parameter, to enable radar detection for secondary segment in 160MHz.

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01717-QCAHKSWPL_SILICONZ-1

Signed-off-by: Lavanya Suresh <lavaks@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1613480547-28810-1-git-send-email-lavaks@codeaurora.org
2021-02-18 08:00:30 +02:00
Lavanya Suresh 096b625fab ath11k: Fix sounding dimension config in HE cap
Number of Sounding dimensions config received from firmware for
bandwidth above 80MHz is cleared, and proper value is not set again.
So not resetting it to accept the config from firmware.

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01689-QCAHKSWPL_SILICONZ-1

Signed-off-by: Lavanya Suresh <lavaks@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1613460136-7170-1-git-send-email-lavaks@codeaurora.org
2021-02-18 07:59:38 +02:00
Rajkumar Manoharan b56b08aec5 ath11k: add support to configure spatial reuse parameter set
The SPR parameter set comprises OBSS PD threshold for SRG
and non SRG and Bitmap of BSS color and partial BSSID. This adds
support to configure fields of SPR element to firmware.

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2
Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.4.0.1-01164-QCAHKSWPL_SILICONZ-1
Tested-by: Muna Sinada <msinada@codeaurora.org>
Signed-off-by: Rajkumar Manoharan <rmanohar@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1612843714-29174-1-git-send-email-rmanohar@codeaurora.org
2021-02-11 08:48:36 +02:00
Dan Carpenter c202e2ebe1 ath11k: fix a locking bug in ath11k_mac_op_start()
This error path leads to a Smatch warning:

	drivers/net/wireless/ath/ath11k/mac.c:4269 ath11k_mac_op_start()
	error: double unlocked '&ar->conf_mutex' (orig line 4251)

We're not holding the lock when we do the "goto err;" so it leads to a
double unlock.  The fix is to hold the lock for a little longer.

Fixes: c83c500b55 ("ath11k: enable idle power save mode")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
[kvalo@codeaurora.org: move also rcu_assign_pointer() call]
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/YBk4GoeE+yc0wlJH@mwanda
2021-02-10 09:45:57 +02:00
Tom Rix bb2d2dfd3c ath11k: remove h from printk format specifier
This change fixes the checkpatch warning described in this commit
commit cbacb5ab0a ("docs: printk-formats: Stop encouraging use of
  unnecessary %h[xudi] and %hh[xudi]")

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

Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210128144928.2557605-1-trix@redhat.com
2021-02-04 09:39:10 +02:00
Wen Gong 0d96968315 ath11k: add ieee80211_unregister_hw to avoid kernel crash caused by NULL pointer
When function return fail to __ath11k_mac_register after success called
ieee80211_register_hw, then it set wiphy->dev.parent to NULL by
SET_IEEE80211_DEV(ar->hw, NULL) in end of __ath11k_mac_register, then
cfg80211_get_drvinfo will be called by below call stack, but the
wiphy->dev.parent is NULL, so kernel crash.

Call stack to cfg80211_get_drvinfo:
NetworkManager   826 [001]  6696.731371:    probe:cfg80211_get_drvinfo: (ffffffffc107d8f0)
        ffffffffc107d8f1 cfg80211_get_drvinfo+0x1 (/lib/modules/5.10.0-rc1-wt-ath+/kernel/net/wireless-back/cfg80211.ko)
        ffffffff9d8fc529 ethtool_get_drvinfo+0x99 (vmlinux)
        ffffffff9d90080e dev_ethtool+0x1dbe (vmlinux)
        ffffffff9d8b88f7 dev_ioctl+0xb7 (vmlinux)
        ffffffff9d8668de sock_do_ioctl+0xae (vmlinux)
        ffffffff9d866d60 sock_ioctl+0x350 (vmlinux)
        ffffffff9d2ca30e __x64_sys_ioctl+0x8e (vmlinux)
        ffffffff9da0dda3 do_syscall_64+0x33 (vmlinux)
        ffffffff9dc0008c entry_SYSCALL_64_after_hwframe+0x44 (vmlinux)
            7feb5f673007 __GI___ioctl+0x7 (/lib/x86_64-linux-gnu/libc-2.23.so)
                       0 [unknown] ([unknown])

Code of cfg80211_get_drvinfo, the pdev which is wiphy->dev.parent is
NULL when kernel crash:
void cfg80211_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
{
	struct wireless_dev *wdev = dev->ieee80211_ptr;
	struct device *pdev = wiphy_dev(wdev->wiphy);

	if (pdev->driver)
....

kernel crash log:
[  973.619550] ath11k_pci 0000:05:00.0: failed to perform regd update : -16
[  973.619555] ath11k_pci 0000:05:00.0: ath11k regd update failed: -16
[  973.619566] ath11k_pci 0000:05:00.0: failed register the radio with mac80211: -16
[  973.619618] ath11k_pci 0000:05:00.0: failed to create pdev core: -16
[  973.636035] BUG: kernel NULL pointer dereference, address: 0000000000000068
[  973.636046] #PF: supervisor read access in kernel mode
[  973.636050] #PF: error_code(0x0000) - not-present page
[  973.636054] PGD 800000012452e067 P4D 800000012452e067 PUD 12452d067 PMD 0
[  973.636064] Oops: 0000 [#1] SMP PTI
[  973.636072] CPU: 3 PID: 848 Comm: NetworkManager Kdump: loaded Tainted: G        W  OE     5.10.0-rc1-wt-ath+ #24
[  973.636076] Hardware name: LENOVO 418065C/418065C, BIOS 83ET63WW (1.33 ) 07/29/2011
[  973.636161] RIP: 0010:cfg80211_get_drvinfo+0x25/0xd0 [cfg80211]
[  973.636169] Code: e9 c9 fe ff ff 66 66 66 66 90 55 53 ba 20 00 00 00 48 8b af 08 03 00 00 48 89 f3 48 8d 7e 04 48 8b 45 00 48 8b 80 90 01 00 00 <48> 8b 40 68 48 85 c0 0f 84 8d 00 00 00 48 8b 30 e8 a6 cc 72 c7 48
[  973.636174] RSP: 0018:ffffaafb4040bbe0 EFLAGS: 00010286
[  973.636180] RAX: 0000000000000000 RBX: ffffaafb4040bbfc RCX: 0000000000000000
[  973.636184] RDX: 0000000000000020 RSI: ffffaafb4040bbfc RDI: ffffaafb4040bc00
[  973.636188] RBP: ffff8a84c9568950 R08: 722d302e30312e35 R09: 74612d74772d3163
[  973.636192] R10: 3163722d302e3031 R11: 2b6874612d74772d R12: ffffaafb4040bbfc
[  973.636196] R13: 00007ffe453707c0 R14: ffff8a84c9568000 R15: 0000000000000000
[  973.636202] FS:  00007fd3d179b940(0000) GS:ffff8a84fa2c0000(0000) knlGS:0000000000000000
[  973.636206] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  973.636211] CR2: 0000000000000068 CR3: 00000001153b6002 CR4: 00000000000606e0
[  973.636215] Call Trace:
[  973.636234]  ethtool_get_drvinfo+0x99/0x1f0
[  973.636246]  dev_ethtool+0x1dbe/0x2be0
[  973.636256]  ? mntput_no_expire+0x35/0x220
[  973.636264]  ? inet_ioctl+0x1ce/0x200
[  973.636274]  ? tomoyo_path_number_perm+0x68/0x1d0
[  973.636282]  ? kmem_cache_alloc+0x3cb/0x430
[  973.636290]  ? dev_ioctl+0xb7/0x570
[  973.636295]  dev_ioctl+0xb7/0x570
[  973.636307]  sock_do_ioctl+0xae/0x150
[  973.636315]  ? sock_ioctl+0x350/0x3c0
[  973.636319]  sock_ioctl+0x350/0x3c0
[  973.636332]  ? __x64_sys_ioctl+0x8e/0xd0
[  973.636339]  ? dlci_ioctl_set+0x30/0x30
[  973.636346]  __x64_sys_ioctl+0x8e/0xd0
[  973.636359]  do_syscall_64+0x33/0x80
[  973.636368]  entry_SYSCALL_64_after_hwframe+0x44/0xa9

Sequence of function call when wlan load for success case when function
__ath11k_mac_register return 0:

kworker/u16:3-e  2922 [001]  6696.729734:   probe:ieee80211_register_hw: (ffffffffc116ae60)
kworker/u16:3-e  2922 [001]  6696.730210:        probe:ieee80211_if_add: (ffffffffc1185cc0)
NetworkManager   826 [001]  6696.731345:     probe:ethtool_get_drvinfo: (ffffffff9d8fc490)
NetworkManager   826 [001]  6696.731371:    probe:cfg80211_get_drvinfo: (ffffffffc107d8f0)
NetworkManager   826 [001]  6696.731639:     probe:ethtool_get_drvinfo: (ffffffff9d8fc490)
NetworkManager   826 [001]  6696.731653:    probe:cfg80211_get_drvinfo: (ffffffffc107d8f0)
NetworkManager   826 [001]  6696.732866:     probe:ethtool_get_drvinfo: (ffffffff9d8fc490)
NetworkManager   826 [001]  6696.732893:    probe:cfg80211_get_drvinfo: (ffffffffc107d8f0)
systemd-udevd  3850 [003]  6696.737199:     probe:ethtool_get_drvinfo: (ffffffff9d8fc490)
systemd-udevd  3850 [003]  6696.737226:    probe:cfg80211_get_drvinfo: (ffffffffc107d8f0)
NetworkManager   826 [000]  6696.759950:     probe:ethtool_get_drvinfo: (ffffffff9d8fc490)
NetworkManager   826 [000]  6696.759967:    probe:cfg80211_get_drvinfo: (ffffffffc107d8f0)
NetworkManager   826 [000]  6696.760057:     probe:ethtool_get_drvinfo: (ffffffff9d8fc490)
NetworkManager   826 [000]  6696.760062:    probe:cfg80211_get_drvinfo: (ffffffffc107d8f0)

After apply this patch, kernel crash gone, and below is the test case's
sequence of function call and log when wlan load with fail by function
ath11k_regd_update, and __ath11k_mac_register return fail:

kworker/u16:5-e   192 [001]   215.174388:   probe:ieee80211_register_hw: (ffffffffc1131e60)
kworker/u16:5-e   192 [000]   215.174973:        probe:ieee80211_if_add: (ffffffffc114ccc0)
NetworkManager   846 [001]   215.175857:     probe:ethtool_get_drvinfo: (ffffffff928fc490)
kworker/u16:5-e   192 [000]   215.175867: probe:ieee80211_unregister_hw: (ffffffffc1131970)
NetworkManager   846 [001]   215.175880:    probe:cfg80211_get_drvinfo: (ffffffffc107f8f0)
NetworkManager   846 [001]   215.176105:     probe:ethtool_get_drvinfo: (ffffffff928fc490)
NetworkManager   846 [001]   215.176118:    probe:cfg80211_get_drvinfo: (ffffffffc107f8f0)
[  215.175859] ath11k_pci 0000:05:00.0: ath11k regd update failed: -16
NetworkManager   846 [001]   215.196420:     probe:ethtool_get_drvinfo: (ffffffff928fc490)
NetworkManager   846 [001]   215.196430:    probe:cfg80211_get_drvinfo: (ffffffffc107f8f0)
[  215.258598] ath11k_pci 0000:05:00.0: failed register the radio with mac80211: -16
[  215.258613] ath11k_pci 0000:05:00.0: failed to create pdev core: -16

When ath11k_regd_update or ath11k_debugfs_register return fail, function
ieee80211_unregister_hw of mac80211 will be called, then it will wait
untill cfg80211_get_drvinfo finished, the wiphy->dev.parent is not NULL
at this moment, after that, it set wiphy->dev.parent to NULL by
SET_IEEE80211_DEV(ar->hw, NULL) in end of __ath11k_mac_register, so
not happen kernel crash.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Signed-off-by: Wen Gong <wgong@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1608607824-16067-1-git-send-email-wgong@codeaurora.org
2021-01-26 18:04:32 +02:00
Carl Huang aa44b2f3ec ath11k: start vdev if a bss peer is already created
For QCA6390, bss peer must be created before vdev is to start. This
change is to start vdev if a bss peer is created. Otherwise, ath11k
delays to start vdev.

This fixes an issue in a case where HT/VHT/HE settings change between
authentication and association, e.g., due to the user space request
to disable HT.

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

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201211051358.9191-1-cjhuang@codeaurora.org
2020-12-17 08:47:06 +02:00
Carl Huang 840c36fa72 ath11k: dp: stop rx pktlog before suspend
Stop dp rx pktlog when entering suspend and reap the mon_status buffer to keep
it empty. During resume restart the reap timer.

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

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1607708150-21066-7-git-send-email-kvalo@codeaurora.org
2020-12-12 06:41:31 +02:00
Pradeep Kumar Chitrapu 743b9065fe ath11k: mesh: add support for 256 bitmap in blockack frames in 11ax
Currently 256 bitmap in blockack frames is being set only for AP mode.
Fix this to set whenever beacon has changed and has HE capability, there
by supporting mesh as well.

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01228-QCAHKSWPL_SILICONZ-1

Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201020183111.25458-5-pradeepc@codeaurora.org
2020-12-09 09:04:45 +02:00
Pradeep Kumar Chitrapu bd88815060 ath11k: support TXOP duration based RTS threshold
HE operation IE in beacons is constructed based on userspace params,
which firmware might not be aware of. This causes firmware not to
configure TXOP duration based RTS threshold which could cause mismatch
in behaviour with respect to what is being advertised in beacons. This
patch sends HE operation IE fetched from beacon to firmware using
WMI interface for configuration.

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01228-QCAHKSWPL_SILICONZ-1

Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201020183111.25458-4-pradeepc@codeaurora.org
2020-12-09 09:04:42 +02:00
Dan Carpenter 59ec8e2fa5 ath11k: unlock on error path in ath11k_mac_op_add_interface()
These error paths need to drop the &ar->conf_mutex before returning.

Fixes: 690ace20ff ("ath11k: peer delete synchronization with firmware")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/X85sVGVP/0XvlrEJ@mwanda
2020-12-09 09:04:07 +02:00
Sven Eckelmann 5da7acfec5 ath11k: Reset ath11k_skb_cb before setting new flags
It was observed that the codepath for the ATH11K_SKB_HW_80211_ENCAP was
used even when the IEEE80211_TX_CTRL_HW_80211_ENCAP was not enabled for a
an skbuff. This became even more prominent when the QCAs wlan-open patchset
for ath11k [1] was applied and a sane looking fix just caused crashes when
injecting frames via a monitor interface (for example with ratechecker):

  [   86.963152] Unable to handle kernel NULL pointer dereference at virtual address 00000338
  [   86.963192] pgd = ffffffc0008f0000
  [   86.971034] [00000338] *pgd=0000000051706003, *pud=0000000051706003, *pmd=0000000051707003, *pte=00e800000b000707
  [   86.984292] Internal error: Oops: 96000006 [#1] PREEMPT SMP
  [...]
  [   87.713339] [<ffffffbffc802480>] ieee80211_tx_status_8023+0xf8/0x220 [mac80211]
  [   87.715654] [<ffffffbffc98bad4>] ath11k_dp_tx_completion_handler+0x42c/0xa10 [ath11k]
  [   87.722924] [<ffffffbffc989190>] ath11k_dp_service_srng+0x70/0x3c8 [ath11k]
  [   87.730831] [<ffffffbffca03460>] 0xffffffbffca03460
  [   87.737599] [<ffffffc00046ef58>] net_rx_action+0xf8/0x288
  [   87.742462] [<ffffffc000097554>] __do_softirq+0xfc/0x220
  [   87.748014] [<ffffffc000097900>] irq_exit+0x98/0xe8
  [   87.753396] [<ffffffc0000cf188>] __handle_domain_irq+0x90/0xb8
  [   87.757999] [<ffffffc000081ca4>] gic_handle_irq+0x6c/0xc8
  [   87.763899] Exception stack(0xffffffc00081bdc0 to 0xffffffc00081bef0)

Problem is that the state of ath11k_skb_cb->flags must be considered
unknown and could contain anything when it is not manually initialized. So
it could also contain ATH11K_SKB_HW_80211_ENCAP. And this can result in the
code to assume that the ath11k_skb_cb->vif is set - even when this is not
always the case for non ATH11K_SKB_HW_80211_ENCAP transmissions.

Tested-on: IPQ8074 hw2.0 WLAN.HK.2.4.0.1.r1-00026-QCAHKSWPL_SILICONZ-2

[1] https://source.codeaurora.org/quic/qsdk/oss/system/feeds/wlan-open/tree/mac80211/patches?h=NHSS.QSDK.11.4.r3
    (162 patches at the moment which are often not upstreamed but essential
     to get ath11k working)

Fixes: e7f33e0c52 ("ath11k: add tx hw 802.11 encapsulation offloading support")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201119154235.263250-2-sven@narfation.org
2020-12-02 20:19:03 +02:00
Sven Eckelmann f4d291b43f ath11k: Don't cast ath11k_skb_cb to ieee80211_tx_info.control
The driver_data area of ieee80211_tx_info is used in ath11k for
ath11k_skb_cb. The first function in the TX patch which rewrites it to
ath11k_skb_cb is already ath11k_mac_op_tx. No one else in the code path
must use it for something else before it reinitializes it. Otherwise the
data has to be considered uninitialized or corrupt.

But the ieee80211_tx_info.control shares exactly the same area as
ieee80211_tx_info.driver_data and ath11k is still using it. This results in
best case in a

  ath11k c000000.wifi1: no vif found for mgmt frame, flags 0x0

or (slightly worse) in a kernel oops.

Instead, the interesting data must be moved first into the ath11k_skb_cb
and ieee80211_tx_info.control must then not be used anymore.

Tested-on: IPQ8074 hw2.0 WLAN.HK.2.4.0.1.r1-00026-QCAHKSWPL_SILICONZ-2

Fixes: d5c65159f2 ("ath11k: driver for Qualcomm IEEE 802.11ax devices")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201119154235.263250-1-sven@narfation.org
2020-12-02 20:19:00 +02:00
Ritesh Singh fae0385b29 ath11k: remove "ath11k_mac_get_ar_vdev_stop_status" references
Unused structure ath11k_vdev_stop_status is removed.
'ath11k_mac_get_ar_vdev_stop_status' api has been replaced
with 'ath11k_mac_get_ar_by_vdev_id' inside vdev_stopped_event.

Signed-off-by: Ritesh Singh <ritesi@codeaurora.org>
Signed-off-by: Maharaja Kennadyrajan <mkenna@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1605514143-17652-4-git-send-email-mkenna@codeaurora.org
2020-11-24 18:04:37 +02:00
Ritesh Singh 690ace20ff ath11k: peer delete synchronization with firmware
Peer creation in firmware fails, if last peer deletion
is still in progress.
Hence, add wait for the event after deleting every peer
from host driver to synchronize with firmware.

Signed-off-by: Ritesh Singh <ritesi@codeaurora.org>
Signed-off-by: Maharaja Kennadyrajan <mkenna@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1605514143-17652-3-git-send-email-mkenna@codeaurora.org
2020-11-24 18:04:34 +02:00
Ritesh Singh 3cbbdfbed1 ath11k: vdev delete synchronization with firmware
When the interface is added immediately after removing the
interface, vdev deletion in firmware might not have been
completed.

Hence, add vdev_delete_resp_event and wait_event_timeout
to synchronize with firmware.

Signed-off-by: Ritesh Singh <ritesi@codeaurora.org>
Signed-off-by: Maharaja Kennadyrajan <mkenna@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1605514143-17652-2-git-send-email-mkenna@codeaurora.org
2020-11-24 18:04:31 +02:00
Maharaja Kennadyrajan 11af6de479 ath11k: Fix the rx_filter flag setting for peer rssi stats
Set the rx_filter in ath11k_mac_config_mon_status_default(),
only when the rx_filter value exists in ath11k_debug_rx_filter().

Without this change, rx_filter gets set to 0 and peer rssi stats
aren't updating properly from firmware.

Tested-on: IPQ8074 WLAN.HK.2.1.0.1-01230-QCAHKSWPL_SILICONZ-4

Fixes: ec48d28ba2 ("ath11k: Fix rx_filter flags setting for per peer rx_stats")

Signed-off-by: Maharaja Kennadyrajan <mkenna@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1605091117-11005-1-git-send-email-mkenna@codeaurora.org
2020-11-23 20:08:23 +02:00
Ramya Gnanasekar 1057db1b8b ath11k: Fix beamformee STS in HE cap
STS Beamformee capability sent from firmware is overwritten as
num_tx_chains - 1.
When num_tx_chains is 2, then STS is set to invalid value 1.
Since STS is not limited by number of TX chain, not overwriting the
capability received from firmware.

Tested on: IPQ6018 WLAN.HK.2.4.0.1-00303-QCAHKSWPL_SILICONZ-1

Signed-off-by: Ramya Gnanasekar <rgnanase@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1604933229-15815-1-git-send-email-rgnanase@codeaurora.org
2020-11-23 20:06:28 +02:00
Alex Dewar c134d1f8c4 ath11k: Handle errors if peer creation fails
ath11k_peer_create() is called without its return value being checked,
meaning errors will be unhandled. Add missing check and, as the mutex is
unconditionally unlocked on leaving this function, simplify the exit
path.

Addresses-Coverity-ID: 1497531 ("Code maintainability issues")
Fixes: 701e48a43e ("ath11k: add packet log support for QCA6390")
Signed-off-by: Alex Dewar <alex.dewar90@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201004100218.311653-1-alex.dewar90@gmail.com
2020-11-10 20:14:36 +02:00
Aloka Dixit 047679e366 ath11k: FILS discovery and unsolicited broadcast probe response support
This patch adds driver support for FILS discovery and unsolicited
broadcast probe response transmission features which are used for
in-band discovery in 6GHz band.
Currently this support is enabled only in 6GHz by setting hardware flags.

Changes include WMI commands to enable transmission, set packet
interval, set template, and handle events.

Signed-off-by: Aloka Dixit <alokad@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201007204036.19780-1-alokad@codeaurora.org
2020-11-06 08:38:21 +02:00
Alex Dewar 8431350eee ath11k: Fix memory leak on error path
In ath11k_mac_setup_iface_combinations(), if memory cannot be assigned
for the variable limits, then the memory assigned to combinations will
be leaked. Fix this.

Addresses-Coverity-ID: 1497534 ("Resource leaks")
Fixes: 2626c26970 ("ath11k: add interface_modes to hw_params")
Signed-off-by: Alex Dewar <alex.dewar90@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201004100218.311653-2-alex.dewar90@gmail.com
2020-10-08 13:45:55 +03:00
Carl Huang c83c500b55 ath11k: enable idle power save mode
Host sends wmi command to allow hardware enter idle power
save mode in ath11k_mac_op_start function.

hw parameter idle_ps indicates whether idle power save is supported.

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

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1601544890-13450-8-git-send-email-kvalo@codeaurora.org
2020-10-01 22:33:17 +03:00
Wen Gong 7fd85517c3 ath11k: mac: remove unused conf_mutex to solve a deadlock
The conf_mutex is not use and lead below deadlock, remove it to solve
the deadlock issue.

[   44.967496] NET: Registered protocol family 42
[   45.119629] ath11k_pci 0000:06:00.0: WARNING: ath11k PCI support is experimental!
[   45.120087] ath11k_pci 0000:06:00.0: BAR 0: assigned [mem 0xdc000000-0xdc0fffff 64bit]
[   45.120108] ath11k_pci 0000:06:00.0: enabling device (0000 -> 0002)
[   45.206525] ath11k_pci 0000:06:00.0: aspm 0x42 changed to 0x40
[   45.207430] mhi 0000:06:00.0: Requested to power ON
[   45.208609] mhi 0000:06:00.0: Power on setup success
[   46.190711] ath11k_pci 0000:06:00.0: chip_id 0x0 chip_family 0xb board_id 0x101 soc_id 0xffffffff
[   46.190729] ath11k_pci 0000:06:00.0: fw_version 0x306a70f fw_build_timestamp 2000-01-01 00:00 fw_build_id
1]: Starting Load/Save RF Kill Switch Status...
[   46.385118] ath11k_pci 0000:06:00.0 wlp6s0: renamed from wlan0
1]: Started Load/Save RF Kill Switch Status.
[   53.566669] wlp6s0: authenticate with 00:03:7f:48:dd:bf
[   53.809092] wlp6s0: send auth to 00:03:7f:48:dd:bf (try 1/3)
[   53.816490] wlp6s0: authenticated
[   53.818618] wlp6s0: associate with 00:03:7f:48:dd:bf (try 1/3)
[   53.820839] wlp6s0: RX AssocResp from 00:03:7f:48:dd:bf (capab=0x1 status=0 aid=2)
[   53.834859]
[   53.834861] ======================================================
[   53.834862] WARNING: possible circular locking dependency detected
[   53.834863] 5.9.0-rc5-wt-ath+ #198 Not tainted
[   53.834864] ------------------------------------------------------
[   53.834865] kworker/u16:3/166 is trying to acquire lock:
[   53.834866] ffff8c4b37184f78 (&ar->conf_mutex){+.+.}-{3:3}, at: ath11k_mac_op_config+0x16/0x30 [ath11k]
[   53.834875]
[   53.834875] but task is already holding lock:
[   53.834876] ffff8c4b37182808 (&local->iflist_mtx){+.+.}-{3:3}, at: ieee80211_set_associated+0x167/0x360
[   53.834879]
[   53.834879] which lock already depends on the new lock.
[   53.834879]
[   53.834880]
[   53.834880] the existing dependency chain (in reverse order) is:
[   53.834881]
[   53.834881] -> #1 (&local->iflist_mtx){+.+.}-{3:3}:
[   53.834884]        __lock_acquire+0x3bf/0x6e0
[   53.834886]        lock_acquire+0xb6/0x270
[   53.834887]        __mutex_lock+0x88/0x8e0
[   53.834890]        ieee80211_set_hw_80211_encap+0x3e/0x1f0
[   53.834895]        ath11k_mac_op_add_interface+0x348/0x7f0 [ath11k]
[   53.834897]        drv_add_interface+0x7c/0x190
[   53.834899]        ieee80211_do_open+0x552/0x9a0
[   53.834901]        __dev_open+0xe5/0x190
[   53.834902]        __dev_change_flags+0x1c6/0x230
[   53.834903]        dev_change_flags+0x1c/0x50
[   53.834905]        do_setlink+0x246/0xc60
[   53.834906]        __rtnl_newlink+0x607/0x990
[   53.834907]        rtnl_newlink+0x3f/0x60
[   53.834908]        rtnetlink_rcv_msg+0x174/0x490
[   53.834910]        netlink_rcv_skb+0x42/0x100
[   53.834911]        netlink_unicast+0x18c/0x250
[   53.834912]        netlink_sendmsg+0x227/0x460
[   53.834914]        sock_sendmsg+0x59/0x60
[   53.834915]        ____sys_sendmsg+0x1f5/0x230
[   53.834916]        ___sys_sendmsg+0x70/0xb0
[   53.834917]        __sys_sendmsg+0x54/0xa0
[   53.834919]        do_syscall_64+0x33/0x40
[   53.834920]        entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   53.834921]
[   53.834921] -> #0 (&ar->conf_mutex){+.+.}-{3:3}:
[   53.834923]        check_prev_add+0x98/0x9f0
[   53.834925]        validate_chain+0x404/0x6c0
[   53.834926]        __lock_acquire+0x3bf/0x6e0
[   53.834927]        lock_acquire+0xb6/0x270
[   53.834929]        __mutex_lock+0x88/0x8e0
[   53.834934]        ath11k_mac_op_config+0x16/0x30 [ath11k]
[   53.834935]        ieee80211_hw_config+0xb3/0x270
[   53.834937]        ieee80211_set_associated+0x17c/0x360
[   53.834938]        ieee80211_assoc_success.constprop.0+0x5a2/0xc80
[   53.834940]        ieee80211_rx_mgmt_assoc_resp+0x16a/0x350
[   53.834941]        ieee80211_sta_rx_queued_mgmt+0xca/0x410
[   53.834943]        ieee80211_iface_work+0x1f3/0x350
[   53.834945]        process_one_work+0x265/0x5d0
[   53.834946]        worker_thread+0x49/0x300
[   53.834948]        kthread+0x135/0x150
[   53.834949]        ret_from_fork+0x22/0x30
[   53.834950]
[   53.834950] other info that might help us debug this:
[   53.834950]
[   53.834951]  Possible unsafe locking scenario:
[   53.834951]
[   53.834952]        CPU0                    CPU1
[   53.834952]        ----                    ----
[   53.834953]   lock(&local->iflist_mtx);
[   53.834954]                                lock(&ar->conf_mutex);
[   53.834955]                                lock(&local->iflist_mtx);
[   53.834956]   lock(&ar->conf_mutex);
[   53.834957]
[   53.834957]  *** DEADLOCK ***
[   53.834957]
[   53.834958] 4 locks held by kworker/u16:3/166:
[   53.834959]  #0: ffff8c4b37c22948 ((wq_completion)phy0){+.+.}-{0:0}, at: process_one_work+0x1d3/0x5d0
[   53.834961]  #1: ffffa98300abfe70 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x1d3/0x5d0
[   53.834963]  #2: ffff8c4b371e4cd0 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_sta_rx_queued_mgmt+0x4b/0x410
[   53.834965]  #3: ffff8c4b37182808 (&local->iflist_mtx){+.+.}-{3:3}, at: ieee80211_set_associated+0x167/0x360
[   53.834968]
[   53.834968] stack backtrace:
[   53.834969] CPU: 1 PID: 166 Comm: kworker/u16:3 Not tainted 5.9.0-rc5-wt-ath+ #198
[   53.834970] Hardware name: Intel(R) Client Systems NUC8i7HVK/NUC8i7HVB, BIOS HNKBLi70.86A.0049.2018.0801.1601 08/01/2018
[   53.834972] Workqueue: phy0 ieee80211_iface_work
[   53.834974] Call Trace:
[   53.834976]  dump_stack+0x77/0xa0
[   53.834978]  check_noncircular+0x15d/0x180
[   53.834980]  check_prev_add+0x98/0x9f0
[   53.834982]  ? add_chain_cache+0x143/0x440
[   53.834984]  validate_chain+0x404/0x6c0
[   53.834986]  __lock_acquire+0x3bf/0x6e0
[   53.834988]  lock_acquire+0xb6/0x270
[   53.834993]  ? ath11k_mac_op_config+0x16/0x30 [ath11k]
[   53.834999]  ? ath11k_mac_op_config+0x16/0x30 [ath11k]
[   53.835001]  __mutex_lock+0x88/0x8e0
[   53.835006]  ? ath11k_mac_op_config+0x16/0x30 [ath11k]
[   53.835007]  ? sched_clock_cpu+0xc/0xb0
[   53.835009]  ? __lock_release+0x179/0x2c0
[   53.835014]  ath11k_mac_op_config+0x16/0x30 [ath11k]
[   53.835016]  ieee80211_hw_config+0xb3/0x270
[   53.835018]  ieee80211_set_associated+0x17c/0x360
[   53.835019]  ieee80211_assoc_success.constprop.0+0x5a2/0xc80
[   53.835021]  ? lockdep_hardirqs_on_prepare.part.0+0x9f/0x140
[   53.835023]  ? cmpxchg_double_slab.constprop.0+0x185/0x1a0
[   53.835025]  ? trace_hardirqs_on+0x1c/0x100
[   53.835027]  ? __slab_free+0x8f/0x330
[   53.835029]  ? slab_free_freelist_hook+0xf8/0x150
[   53.835031]  ? ieee802_11_parse_elems_crc+0x147/0x1d0
[   53.835032]  ? kfree+0x2b0/0x2d0
[   53.835034]  ? ieee802_11_parse_elems_crc+0x147/0x1d0
[   53.835036]  ieee80211_rx_mgmt_assoc_resp+0x16a/0x350
[   53.835041]  ieee80211_sta_rx_queued_mgmt+0xca/0x410
[   53.835043]  ? __lock_acquire+0x3bf/0x6e0
[   53.835045]  ? lock_acquire+0xb6/0x270
[   53.835046]  ? skb_dequeue+0x13/0x70
[   53.835048]  ? find_held_lock+0x32/0x90
[   53.835049]  ? sched_clock_cpu+0xc/0xb0
[   53.835051]  ? mark_held_locks+0x50/0x80
[   53.835053]  ? lockdep_hardirqs_on_prepare.part.0+0x9f/0x140
[   53.835054]  ? _raw_spin_unlock_irqrestore+0x34/0x40
[   53.835056]  ? trace_hardirqs_on+0x1c/0x100
[   53.835058]  ieee80211_iface_work+0x1f3/0x350
[   53.835060]  process_one_work+0x265/0x5d0
[   53.835062]  worker_thread+0x49/0x300
[   53.835063]  ? process_one_work+0x5d0/0x5d0
[   53.835065]  kthread+0x135/0x150
[   53.835066]  ? kthread_create_worker_on_cpu+0x60/0x60
[   53.835068]  ret_from_fork+0x22/0x30
[   53.835075] wlp6s0: associated
[   53.835132] IPv6: ADDRCONF(NETDEV_CHANGE): wlp6s0: link becomes ready

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

Signed-off-by: Wen Gong <wgong@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1601463073-12106-4-git-send-email-kvalo@codeaurora.org
2020-10-01 22:32:10 +03:00
Carl Huang 701e48a43e ath11k: add packet log support for QCA6390
Add packet log support for QCA6390, otherwise the data connection will stall
within a minute or so.  Enable it via debugfs and use trace-cmd to capture the
pktlogs.

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

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

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

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

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

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1601463073-12106-2-git-send-email-kvalo@codeaurora.org
2020-10-01 22:32:04 +03:00
Kalle Valo 3f6e6c3291 ath11k: disable monitor mode on QCA6390
QCA6390 does not support monitor mode at the moment so disable it altogether,
using a hack as mac80211 does not support disabling it otherwise. Add a boolean
to hw_params to know if hardware supports monitor mode.

IPQ8074 continues to support monitor mode normally.

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

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1601399736-3210-6-git-send-email-kvalo@codeaurora.org
2020-10-01 22:31:03 +03:00
Kalle Valo 2626c26970 ath11k: add interface_modes to hw_params
As QCA6390 does not support mesh interfaces, move the interface_modes to
hw_params. Also create interface combinations dynamically so that it's easy to
change the values.

Now QCA6390 does not claim to support mesh interfaces to user space, but
IPQ8074 continues to do that.

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

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1601399736-3210-4-git-send-email-kvalo@codeaurora.org
2020-10-01 22:30:58 +03:00
Carl Huang b091992489 ath11k: fix AP mode for QCA6390
For QCA6390, station vdev needs to delay startup but not for AP mode. On AP
mode vdev starts up immediately after bss peer is created in chanctx assignment
context.

This patch does not affect IPQ8074 family of devices.

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

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1601399736-3210-3-git-send-email-kvalo@codeaurora.org
2020-10-01 22:30:55 +03:00
Kalle Valo cd19836a6c ath11k: mac: fix parenthesis alignment
Commit 6aea26ce5a ("mac80211: rework tx encapsulation offload API")
introduced a new checkpatch warning:

drivers/net/wireless/ath/ath11k/mac.c:4354: Alignment should match open parenthesis

Fix that.

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1601369160-1252-1-git-send-email-kvalo@codeaurora.org
2020-10-01 22:25:13 +03:00
David S. Miller 7806f6561c wireless-drivers-next patches for v5.10
Second set of patches for v5.10. Biggest change here is wcn3680
 support to wcn36xx driver, otherwise smaller features. And naturally
 the usual fixes and cleanups.
 
 Major changes:
 
 brcmfmac
 
 * support 4-way handshake offloading for WPA/WPA2-PSK in AP mode
 
 * support SAE authentication offload in AP mode
 
 mt76
 
 * mt7663 runtime power management improvements
 
 * mt7915 A-MSDU offload
 
 wcn36xx
 
 * add support wcn3680 Wi-Fi 5 devices
 
 ath11k
 
 * spectral scan support for ipq6018
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Merge tag 'wireless-drivers-next-2020-09-25' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for v5.10

Second set of patches for v5.10. Biggest change here is wcn3680
support to wcn36xx driver, otherwise smaller features. And naturally
the usual fixes and cleanups.

Major changes:

brcmfmac

* support 4-way handshake offloading for WPA/WPA2-PSK in AP mode

* support SAE authentication offload in AP mode

mt76

* mt7663 runtime power management improvements

* mt7915 A-MSDU offload

wcn36xx

* add support wcn3680 Wi-Fi 5 devices

ath11k

* spectral scan support for ipq6018
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25 13:16:29 -07:00
Kalle Valo 568f06036e ath11k: debugfs: move some function declarations to correct header files
Some of the function declarations are for functions in debugfs_htt_stats.c and
debugfs_sta.c, move them to corresponding header files. As debugfs_sta.h didn't
exist create it.

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

No functional changes. Compile tested only.

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

No functional changes. Compile tested only.

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1600264523-12939-2-git-send-email-kvalo@codeaurora.org
2020-09-22 10:41:44 +03:00
Felix Fietkau cc20ff2c6b mac80211: swap NEED_TXPROCESSING and HW_80211_ENCAP tx flags
In order to unify the tx status path, the hw 802.11 encapsulation flag
needs to survive the trip to the tx status call.
Since we don't have any free bits in info->flags, we need to move one.
IEEE80211_TX_INTFL_NEED_TXPROCESSING is only used internally in mac80211,
and only before the call into the driver.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://lore.kernel.org/r/20200908123702.88454-10-nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-09-18 12:13:06 +02:00
Felix Fietkau 6aea26ce5a mac80211: rework tx encapsulation offload API
The current API (which lets the driver turn on/off per vif directly) has a
number of limitations:
- it does not deal with AP_VLAN
- conditions for enabling (no tkip, no monitor) are only checked at
  add_interface time
- no way to indicate 4-addr support

In order to address this, store offload flags in struct ieee80211_vif
(easy to extend for decap offload later). mac80211 initially sets the enable
flag, but gives the driver a chance to modify it before its settings are
applied. In addition to the .add_interface op, a .update_vif_offload op is
introduced, which can be used for runtime changes.

If a driver can't disable encap offload at runtime, or if it has some extra
limitations, it can simply override the flags within those ops.

Support for encap offload with 4-address mode interfaces can be enabled
by setting a flag from .add_interface or .update_vif_offload.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://lore.kernel.org/r/20200908123702.88454-6-nbd@nbd.name
[resolved conflict with commit aa2092a9ba ("ath11k: add raw mode and
software crypto support")]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-09-18 12:02:57 +02:00
Venkateswara Naralasetty aa2092a9ba ath11k: add raw mode and software crypto support
Adding raw mode tx/rx support. Also, adding support
for software crypto which depends on raw mode.

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

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

These modes could be helpful in debugging crypto related issues.

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

Signed-off-by: Manikanta Pubbisetty <mpubbise@codeaurora.org>
Signed-off-by: Venkateswara Naralasetty <vnaralas@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/010101746c6a52d9-18302a2c-0d6d-4057-aa4b-95960c809646-000000@us-west-2.amazonses.com
2020-09-11 12:56:50 +03:00
Tamizh Chelvam af6d39db1b ath11k: Add peer max mpdu parameter in peer assoc command
Add peer max mpdu length configuration support in peer_assoc_he
parameters. Noticed low throughput for the STA which
supports HE, HT and not VHT in MU-MIMO case without this
configuration

Signed-off-by: Tamizh Chelvam <tamizhr@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1588611900-21185-2-git-send-email-tamizhr@codeaurora.org
2020-09-09 09:49:55 +03:00
Tom Rix 7e8453e35e ath11k: fix a double free and a memory leak
clang static analyzer reports this problem

mac.c:6204:2: warning: Attempt to free released memory
        kfree(ar->mac.sbands[NL80211_BAND_2GHZ].channels);
        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The channels pointer is allocated in ath11k_mac_setup_channels_rates()
When it fails midway, it cleans up the memory it has already allocated.
So the error handling needs to skip freeing the memory.

There is a second problem.
ath11k_mac_setup_channels_rates(), allocates 3 channels. err_free
misses releasing ar->mac.sbands[NL80211_BAND_6GHZ].channels

Fixes: d5c65159f2 ("ath11k: driver for Qualcomm IEEE 802.11ax devices")
Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200906212625.17059-1-trix@redhat.com
2020-09-08 08:44:43 +03:00
Kalle Valo eb77802e0d Merge ath-next from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
ath.git patches for v5.10. Major changes:

ath11k

* add support for QCA6390 PCI devices

wcn36xx

* add support for TX ack

ath9k

* add support for NL80211_EXT_FEATURE_CAN_REPLACE_PTK0 to improve PTK0
  rekeying
2020-08-18 16:17:20 +03:00
Gustavo A. R. Silva 0b294aebb6 ath11k: Use fallthrough pseudo-keyword
Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.

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

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200727194415.GA1275@embeddedor
2020-08-18 12:52:02 +03:00
Carl Huang e749503528 ath11k: delay vdev_start for QCA6390
For QCA6390 firmware, bss peer must be created before vdev_start, so delay
vdev_start until bss peer is created.

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

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597555891-26112-6-git-send-email-kvalo@codeaurora.org
2020-08-18 12:46:58 +03:00
Carl Huang 4152e4206c ath11k: setup QCA6390 rings for both rxdmas
For QCA6390, only one pdev is created and this pdev manages both lmacs, thus
both rxdmas. So host needs to initialize all rxdma related rings for one pdev.

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

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

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597555891-26112-4-git-send-email-kvalo@codeaurora.org
2020-08-18 12:46:52 +03:00
Carl Huang 5f859bc02c ath11k: force single pdev only for QCA6390
For QCA6390, only one pdev is created and only one HW is registered to
mac80211. This one pdev manages both 2G radio and 5G radio.

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

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597576599-8857-10-git-send-email-kvalo@codeaurora.org
2020-08-18 12:44:39 +03:00
Johannes Berg 75e6b594bb cfg80211: invert HE BSS color 'disabled' to 'enabled'
This is in fact 'disabled' in the spec, but there it's in a
place where that actually makes sense. In our internal data
structures, it doesn't really make sense, and in fact the
previous commit just fixed a bug in that area.

Make this safer by inverting the polarity from 'disabled' to
'enabled'.

Link: https://lore.kernel.org/r/20200730130051.5d8399545bd9.Ie62fdcd1a6cd9c969315bc124084a494ca6c8df3@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-31 09:27:02 +02:00
Kalle Valo 21b1a5a4c3 ath11k: remove useless info messages
ath11k should not be spamming these to the logs. If these are important they
should be debug messages, but I just remove them for now.

Compile tested only.

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1592316055-24958-10-git-send-email-kvalo@codeaurora.org
2020-06-23 10:51:56 +03:00
Anilkumar Kolli d547ca4c8c ath11k: add hw_ops for pdev id to hw_mac mapping
pdev_id to hw_mac is different for ipq8074 and ipq6018
Below table has the mapping

pdev_id	ipq8074	ipq6018
-------	------- -------
  0		0	0
  1		2	1
  2		1	Not applicable

No functional changes. Compile tested only.

Signed-off-by: Anilkumar Kolli <akolli@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1592316055-24958-5-git-send-email-kvalo@codeaurora.org
2020-06-23 10:51:42 +03:00
Venkateswara Naralasetty 01e34233c6 ath11k: fix wmi peer flags in peer assoc command
Currently need ptk/gtk wmi peer flags in wmi peer assoc cmd
are set based on the rsnie and wpaie of the bss from the bss list.
Since this bss list is not updated with current BSSID for AP mode,
we may not find bss from the bss list. Which results in ptk/gtk peer
flags are not set in the wmi peer assoc cmd. Due to this EAPOL frames
are going in data rates instead of management rates.

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

Signed-off-by: Venkateswara Naralasetty <vnaralas@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1591771841-25503-1-git-send-email-vnaralas@codeaurora.org
2020-06-15 17:34:12 +03:00
Karthikeyan Periyasamy 9d11b7bff9 ath11k: add support for spectral scan
spectral scan control interface is exposed through debugfs eentry.
Relayfs is used to collect the spectral data. These interfaces are
similar to ath10k spectral.

spectral debugfs interfaces are below,

echo background > /sys/kernel/debug/ieee80211/phy0/ath11k/spectral_scan_ctl
echo trigger > /sys/kernel/debug/ieee80211/phy0/ath11k/spectral_scan_ctl
iw dev wlan0 scan
echo disable > /sys/kernel/debug/ieee80211/phy0/ath11k/spectral_scan_ctl
cat /sys/kernel/debug/ieee80211/phy0/ath11k/spectral_scan0 > fft_samples.dump

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

Signed-off-by: Karthikeyan Periyasamy <periyasa@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1591688014-26441-2-git-send-email-periyasa@codeaurora.org
2020-06-15 17:21:54 +03:00
Rajkumar Manoharan f28b7b78aa ath11k: build HE 6 GHz capability
Build 6 GHz band capability from HT and VHT capabilities reported
by firmware.

Signed-off-by: Rajkumar Manoharan <rmanohar@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1591057888-2862-1-git-send-email-rmanohar@codeaurora.org
2020-06-11 08:06:23 +03:00