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Author SHA1 Message Date
Johannes Berg
3a9690d030 wifi: iwlwifi: limit EHT capabilities based on PCIe link speed 
If a discrete NIC is connected to a PCIe link hat isn't at least
Gen3 (8.0 GT/s), then we cannot sustain 320 MHz traffic, so remove
that from EHT capabilities in that case.

While at it, also move setting 320 MHz beamformee to the right
place in the code so it's not set while not supporting 320 MHz.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230620125813.b77a1574a0a7.Id4120c161fb7df6dedc70d5f3e3829e9117b8cb1@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2023-06-21 14:02:15 +02:00
Johannes Berg
00e482010d wifi: iwlwifi: mvm: add EHT A-MPDU size exponent support 
Add support for reading the EHT MAC capabilities A-MPDU
size exponent field, as indicated by the draft spec.

Also clarify the existing code a bit and add comments
so it's clearer to understand what's going on here.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230620125813.c5e00045d90f.I7520787fca8f8430a564adedf975d069ad8c5417@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2023-06-21 14:02:15 +02:00
Johannes Berg
d51173c13b wifi: iwlwifi: mvm: use min_t() for agg_size 
We can use min_t() for the agg_size and avoid
spelling out the (firmware) limit twice.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230620125813.211768036c1f.I78b7eea32eaae20cc9f32869aa3f42814634ce9a@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2023-06-21 14:02:15 +02:00
Johannes Berg
c7fa5e6828 wifi: iwlwifi: mvm: use EHT maximum MPDU length on 2.4 GHz 
On 2.4 GHz there's no VHT, so EHT defines its own bits for
the maximum MPDU length. Use them when telling firmware
about the maximum.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230620125813.fd5322bb48a4.Ic471045f83229ceaacce25edcf992d3ce2c75de5@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2023-06-21 14:02:15 +02:00
Johannes Berg
592fef3eb6 wifi: iwlwifi: nvm: handle EHT/320 MHz regulatory flag 
Handle the regulatory EHT/320 MHz flags from firmware just
like any other flags before it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230620125813.2c5e886c08f3.Ibc5c27d973d0590e2dea1f50435f9cf3ba8c2c09@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2023-06-21 14:02:15 +02:00
Emmanuel Grumbach
e119e740b1 wifi: iwlwifi: mvm: make iwl_mvm_set_fw_mu_edca_params mld aware 
We need to work on the right link there.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230620125813.8762a90e8857.Ic5b8e96140a449fd1ed7008907d67fc36fe98506@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2023-06-21 14:02:15 +02:00
Miri Korenblit
eeef0168e3 wifi: iwlwifi: fw: send marker cmd before suspend cmd 
This is needed to sync the times in the FW and driver logs

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230620125813.9c84322c41b5.Id13816b3ece103f88514a7523b22bb2b9dcc8ab7@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2023-06-21 14:02:14 +02:00
Emmanuel Grumbach
26aa35e2c5 wifi: iwlwifi: mvm: check the right csa_active 
When the firmware says that the channel switch is happening, we check
that we know about that switch by checking the csa_active bit.

Until now, we checked the bss_conf from the vif instead of taking the
bss_conf of the link.
Fix that.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230620125813.63f835a4f578.I0bb2a231e4da506b7c751dc23a428558f9ecfa75@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2023-06-21 14:02:14 +02:00
Johannes Berg
1caa3a5e92 wifi: iwlwifi: pcie: add size assertions 
Ensure that the TX command scratch fits into the buffer
provided by the first TB. It does, of course, but add
some build-time validations in case we touch this code.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230620125813.8f54f2990b92.If19a038dfd633d4601e3d44dd0ff678bc0a851e9@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2023-06-21 14:02:14 +02:00
Johannes Berg
4742c73262 wifi: iwlwifi: pcie: refactor RB status size calculation 
We have three places doing this check, and even in
slightly different ways (with/without an intermediate).
Refactor that to a new small inline function.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230620125813.f3e87ddd5bce.Ifefba753043b68c394590a35bc6914a0f6497fd3@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2023-06-21 14:02:14 +02:00
Johannes Berg
6c5b9a3296 wifi: nl80211/reg: add no-EHT regulatory flag 
This just propagates to the channel flags, like no-HE and
similar other flags before it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230619161906.74ce2983aed8.Ifa343ba89c11760491daad5aee5a81209d5735a7@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2023-06-21 14:01:29 +02:00
Ilan Peer
4ef2f53e50 wifi: cfg80211: Retrieve PSD information from RNR AP information 
Retrieve the Power Spectral Density (PSD) value from RNR AP
information entry and store it so it could be used by the drivers.

PSD value is explained in Section 9.4.2.170 of Draft
P802.11Revme_D2.0.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230619161906.067ded2b8fc3.I9f407ab5800cbb07045a0537a513012960ced740@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2023-06-21 14:01:29 +02:00
Johannes Berg
2829b2fc89 wifi: mac80211: fix CRC calculation for extended elems 
For extended elements, we currently only calculate the CRC
for some of them, but really we should do it also for the
rest that we care about, such as EHT operation and multi-
link.

Also, while at it, it seems we should do it even if they
aren't well-formed, so we notice if that changes.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230619161906.93235d5c8651.I6615cb3c1244bc9618066baa2bdad7982e9abd1f@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2023-06-21 14:01:28 +02:00
Benjamin Berg
b8b80770b2 wifi: mac80211: avoid lockdep checking when removing deflink 
struct sta_info may be removed without holding sta_mtx if it has not
yet been inserted. To support this, only assert that the lock is held
for links other than the deflink.

This fixes lockdep issues that may be triggered in error cases.

Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230619161906.cdd81377dea0.If5a6734b4b85608a2275a09b4f99b5564d82997f@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2023-06-21 14:01:28 +02:00
Johannes Berg
4484de23ba wifi: mac80211: always hold sdata lock in chanctx assign/unassign 
Due to all the multi-link handling, we now expose the fact that
the sdata/vif is locked to drivers, e.g. when the driver uses
ieee80211_set_monitor_channel(). This was true when a chanctx
is added to or removed from a link, _except_ in monitor mode
with the virtual sdata/vif. Change that, so that drivers can
make that assumption.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230619161906.a5cf7534beda.I5b51664231abee27e02f222083df7ccf88722929@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2023-06-21 14:01:28 +02:00
Johannes Berg
5c1f97537b wifi: mac80211: store BSS param change count from assoc response 
When receiving a multi-link association response, make sure to
track the BSS parameter change count for each link, including
the assoc link.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230619161906.1799c164e7e9.I8e2c1f5eec6eec3fab525ae2dead9f6f099a2427@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2023-06-21 14:01:28 +02:00
Johannes Berg
76a3059cf1 wifi: mac80211: drop some unprotected action frames 
We should not receive/handle unicast protected dual
or public action frames that aren't protected, so
drop them - in the latter case of course only if MFP
is used.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230619161906.eb4461108129.I3c2223cf29d8a3586dfc74b2dda3f6fa2a4eea7c@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2023-06-21 14:01:28 +02:00
Johannes Berg
2cc7add345 wifi: mac80211: move action length check up 
We'd like to add more checks to the function here for
action frames, so move up the length check from the
action processing.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230619161906.e799254e923f.I0a1de5f6bbdc1b2ef5efaa0ac80c7c3f39415538@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2023-06-21 14:01:28 +02:00
Alon Giladi
7339e0f2e1 wifi: mac80211: drop unprotected robust mgmt before 4-way-HS 
When MFP is used, drop unprotected robust management frames also
before the 4-way handshake has been completed, i.e. no key has
been installed yet.

Signed-off-by: Alon Giladi <alon.giladi@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230619183718.cfbefddccd0c.Ife369dbb61c87e311ce15739d5b2b4763bfdfbae@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2023-06-21 14:01:20 +02:00
Juerg Haefliger
8d0c7e1901 wifi: p54: Add missing MODULE_FIRMWARE macro 
Add the missing MODULE_FIRMWARE macro for "3826.eeprom".

Signed-off-by: Juerg Haefliger <juerg.haefliger@canonical.com>
Acked-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230616121917.1034761-1-juerg.haefliger@canonical.com
 2023-06-21 12:53:30 +03:00
Kalle Valo
d5b9a21020 MAINTAINERS: ath11k: add wiki and bugreport page 
ath11k has a wiki and a separate page about reporting bugs, add those so
hopefully people find them easier.

Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230614144704.505553-3-kvalo@kernel.org
 2023-06-21 12:51:15 +03:00
Kalle Valo
30e67ed6e1 MAINTAINERS: ath9k: add git tree 
ath9k patches go to my ath.git tree, document that.

Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230614144704.505553-2-kvalo@kernel.org
 2023-06-21 12:51:15 +03:00
Kalle Valo
5fdaeca73e MAINTAINERS: mt76: add git tree 
Felix has a git tree for mt76 patches, document that.

Signed-off-by: Kalle Valo <kvalo@kernel.org>
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230614144704.505553-1-kvalo@kernel.org
 2023-06-21 12:51:15 +03:00
Ping-Ke Shih
f072eb39e4 wifi: rtw89: use struct to parse firmware header 
A firmware contains basic header, sections and optional dynamic header.
Define them by a struct, so it will be easier to understand the layout,
and also simply access these elements.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230616060601.28460-1-pkshih@realtek.com
 2023-06-21 12:50:21 +03:00
Zong-Zhe Yang
b4a283fb62 wifi: rtw89: TX power stuffs replace confusing naming of _max with _num 
Some old declarations about TX power stuffs were named with confusing
`_max`. But, they mean "the number of". So we change them to be named
with `_num`.

(No logic is changed.)

Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230616060523.28396-1-pkshih@realtek.com
 2023-06-21 12:48:10 +03:00
Ping-Ke Shih
076031a09a wifi: rtw89: 8851b: configure to force 1 TX power value 
RTL8851B is a chip with only single RF path, and it must use 1 TX power
value for transmission, so force 1 TX power value to prevent hardware
logic gets wrong TX power values randomly in certain samples.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230615130442.18116-6-pkshih@realtek.com
 2023-06-21 12:44:58 +03:00
Ping-Ke Shih
76a7c7acaa wifi: rtw89: 8851b: rfk: update IQK to version 0x8 
The main change is to adjust RX calibration groups from {0,1,2,3} to {0,2}
in 5 GHz, so reduce elements from 4 to 2, and use index to iterate them.
Meanwhile, always do RX narrowband calibration (ID_NBRXK) for each group.
NCTL is used to assist IQK, so also update NCTL to 0x6 along with internal
tag HALRF_029_00_103.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230615130442.18116-5-pkshih@realtek.com
 2023-06-21 12:44:57 +03:00
Ping-Ke Shih
b686bc67e0 wifi: rtw89: 8851b: rfk: add LCK track 
LCK is short for LC Tank calibration. To keep RF performance, do this
calibration if difference of thermal value is over a threshold.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230615130442.18116-4-pkshih@realtek.com
 2023-06-21 12:44:57 +03:00
Zong-Zhe Yang
b067acb132 wifi: rtw89: 8851b: update TX power tables to R28 
Update 8851B TX power tables to RF version R28.

TX power tables' changes:
* TX power limit and TX power shape:
	update 5 GHz configurations for FCC and IC

Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230615130442.18116-3-pkshih@realtek.com
 2023-06-21 12:44:57 +03:00
Ping-Ke Shih
f5993f39f3 wifi: rtw89: 8851b: update RF radio A parameters to R28 
Update 8851b radio A parameters to R28 along with internal HALRF_029_00_103

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230615130442.18116-2-pkshih@realtek.com
 2023-06-21 12:44:56 +03:00
Po-Hao Huang
28c11c2949 wifi: rtw88: fix not entering PS mode after AP stops 
Without this patch, firmware only track beacons for port 0 and since
we will always start AP on port 0, this results in misbehavior of
power saving mode on other ports after AP stops.

The "default port" H2C command is used to notify which port should
firmware track. Update the correct settings to firmware so power
saving mode can work properly.

Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230616125540.36877-7-pkshih@realtek.com
 2023-06-21 12:41:46 +03:00
Po-Hao Huang
455afa45ed wifi: rtw88: refine register based H2C command 
Since register based H2C commands don't need endian conversion.
Introduce a new API that don't do conversion and send it directly.
New caller are expected to encode with cpu order and gradually
replace the old ones.

Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230616125540.36877-6-pkshih@realtek.com
 2023-06-21 12:41:45 +03:00
Po-Hao Huang
ad6741b1e0 wifi: rtw88: Stop high queue during scan 
When traversing channel list, TX in high queue should be disabled
along with beacon function, so packets won't be sent to incorrect
channels.

Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230616125540.36877-5-pkshih@realtek.com
 2023-06-21 12:41:45 +03:00
Po-Hao Huang
9e09fbc5e9 wifi: rtw88: Skip high queue in hci_flush 
The flush period may not always intersect with DTIM and when that
happens, an error log "timed out to flush pci TX ring[6]" is shown.
Bypass this since hardware will do proper transmission on the next
DTIM period for broadcast/multicast packets in high queue.

Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230616125540.36877-4-pkshih@realtek.com
 2023-06-21 12:41:45 +03:00
Po-Hao Huang
076f786a0a wifi: rtw88: Fix AP mode incorrect DTIM behavior 
Broadcast and multicast packets in high queue should be transmitted
all at once during DTIM. But without proper settings, hardware fails
to recognize that there are multiple packets and fetches only one.
Fix this by signaling hardware with more data bit set when there are
packets in the high queue.

Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230616125540.36877-3-pkshih@realtek.com
 2023-06-21 12:41:45 +03:00
Po-Hao Huang
88b9d8e6cf wifi: rtw88: use struct instead of macros to set TX desc 
Remove macros that set TX descriptors. Use struct and
le32_encode_bits() with mask definitions.

Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230616125540.36877-2-pkshih@realtek.com
 2023-06-21 12:41:44 +03:00
Chih-Kang Chang
67d7f24b19 wifi: rtw88: process VO packets without workqueue to avoid PTK rekey failed 
In the wpa_supplicant rekey flow, it sends an EAPOL packet 4/4 through
nl80211_tx_control_port() and triggers wake_tx_queue() in the driver.
Then, it sends nl80211_new_key() to configure a new key in mac80211.
However, in wake_tx_queue(), a workqueue is used to process the tx packet,
which might cause the driver to process the EAPOL packet later than
nl80211_new_key(). As a result, the EAPOL 4/4 packet is dropped by mac80211
due to the rekey configuration being finished. The EAPOL packets belongs to
VO packets that need high priority. Therefore, we process VO packets
directly without workqueue to ensure that packets can process immediately.

VO is normally used by voice application that is low traffic load and low
latency, that doesn't affect user experience.
We test iperf with VO packets(iperf3 -P4 -u -b 10000M -S 0xdf)
                          before       after
TX throughput             162M         162M
ping RTT                  3.8ms        3.7ms

Signed-off-by: Chih-Kang Chang <gary.chang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230616031713.16769-1-pkshih@realtek.com
 2023-06-21 12:41:21 +03:00
Po-Hao Huang
2ce9a91fe8 wifi: rtw88: Fix action frame transmission fail before association 
For combo chips, antennas were controlled by bluetooth only during
power on. If WiFi wish to do transmission, notification to the coexistence
module are required. Previously we only do this before authentication.
To allow transmission before auth, such as management TX, now we start
the initiation of coexistence earlier so antennas are shared between
WiFi and bluetooth after set_channel(), and frames could then be sent.

Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230615114348.7193-1-pkshih@realtek.com
 2023-06-21 12:40:26 +03:00
Johannes Berg
d33ed97dca wifi: mac80211: fix documentation config reference 
We shouldn't refer to CPTCFG_, that's for backports, in
mainline that's just CONFIG_. Fix it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2023-06-21 09:16:57 +02:00
Ben Greear
5a0702aac0 wifi: mac80211: add eht_capa debugfs field 
Output looks like this:

[root@ct523c-0b29 ~]# cat /debug/ieee80211/wiphy6/netdev\:wlan6/stations/50\:28\:4a\:bd\:f4\:a7/eht_capa
EHT supported
MAC-CAP: 0x82 0x00
PHY-CAP: 0x0c 0x00 0x00 0x00 0x00 0x48 0x00 0x00 0x00
		OM-CONTROL
		MAX-MPDU-LEN: 11454
		242-TONE-RU-GT20MHZ
		NDP-4-EHT-LFT-32-GI
		BEAMFORMEE-80-NSS: 0
		BEAMFORMEE-160-NSS: 0
		BEAMFORMEE-320-NSS: 0
		SOUNDING-DIM-80-NSS: 0
		SOUNDING-DIM-160-NSS: 0
		SOUNDING-DIM-320-NSS: 0
		MAX_NC: 0
		PPE_THRESHOLD_PRESENT
		NOMINAL_PKT_PAD: 0us
		MAX-NUM-SUPP-EHT-LTF: 1
		SUPP-EXTRA-EHT-LTF
		MCS15-SUPP-MASK: 0

		EHT bw <= 80 MHz, max NSS for MCS 8-9: Rx=2, Tx=2
		EHT bw <= 80 MHz, max NSS for MCS 10-11: Rx=2, Tx=2
		EHT bw <= 80 MHz, max NSS for MCS 12-13: Rx=2, Tx=2
		EHT bw <= 160 MHz, max NSS for MCS 8-9: Rx=0, Tx=0
		EHT bw <= 160 MHz, max NSS for MCS 10-11: Rx=0, Tx=0
		EHT bw <= 160 MHz, max NSS for MCS 12-13: Rx=0, Tx=0
		EHT bw <= 320 MHz, max NSS for MCS 8-9: Rx=0, Tx=0
		EHT bw <= 320 MHz, max NSS for MCS 10-11: Rx=0, Tx=0
		EHT bw <= 320 MHz, max NSS for MCS 12-13: Rx=0, Tx=0
EHT PPE Thresholds: 0xc1 0x0e 0xe0 0x00 0x00

Signed-off-by: Ben Greear <greearb@candelatech.com>
Link: https://lore.kernel.org/r/20230517184428.999384-1-greearb@candelatech.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2023-06-19 17:34:55 +02:00
Dmitry Antipov
7ec2e4499e wifi: iwlwifi: dvm: fix -Wunused-const-variable gcc warning 
Fix the following gcc 13.1 warning observed with W=1:

drivers/net/wireless/intel/iwlwifi/dvm/rs.c:207:39: warning:
‘iwl_rate_mcs’ defined but not used [-Wunused-const-variable=]

This table is actually used in 'rs_sta_dbgfs_scale_table_read()'
only if CONFIG_MAC80211_DEBUGFS is enabled, so the whole thing
may be moved close to its actual use.

Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
Link: https://lore.kernel.org/r/20230619103900.300628-1-dmantipov@yandex.ru
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2023-06-19 14:35:29 +02:00
Johannes Berg
cf0b045ebf wifi: mac80211: check EHT basic MCS/NSS set 
Check that all the NSS in the EHT basic MCS/NSS set
are actually supported, otherwise disable EHT for the
connection.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230618214436.737827c906c9.I0c11a3cd46ab4dcb774c11a5bbc30aecfb6fce11@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2023-06-19 13:12:44 +02:00
Benjamin Berg
5461707a52 wifi: cfg80211: search all RNR elements for colocated APs 
An AP reporting colocated APs may send more than one reduced neighbor
report element. As such, iterate all elements instead of only parsing
the first one when looking for colocated APs.

Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230618214436.ffe2c014f478.I372a4f96c88f7ea28ac39e94e0abfc465b5330d4@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2023-06-19 13:12:44 +02:00
Benjamin Berg
8dcc91c446 wifi: cfg80211: stop parsing after allocation failure 
The error handling code would break out of the loop incorrectly,
causing the rest of the message to be misinterpreted. Fix this by
also jumping out of the surrounding while loop, which will trigger
the error detection code.

Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230618214436.0ffac98475cf.I6f5c08a09f5c9fced01497b95a9841ffd1b039f8@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2023-06-19 13:12:43 +02:00
Johannes Berg
c870d66f1b wifi: update multi-link element STA reconfig 
Update the MLE STA reconfig sub-type to 802.11be D3.0
format, which includes the operation update field.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230618214436.2e1383b31f07.I8055a111c8fcf22e833e60f5587a4d8d21caca5b@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2023-06-19 13:12:43 +02:00
Johannes Berg
92bf4dd358 wifi: mac80211: agg-tx: prevent start/stop race 
There were crashes reported in this code, and the timer_shutdown()
warning in one of the previous patches indicates that the timeout
timer for the AP response (addba_resp_timer) is still armed while
we're stopping the aggregation session.

After a very long deliberation of the code, so far the only way I
could find that might cause this would be the following sequence:
 - session start requested
 - session start indicated to driver, but driver returns
   IEEE80211_AMPDU_TX_START_DELAY_ADDBA
 - session stop requested, sets HT_AGG_STATE_WANT_STOP
 - session stop worker runs ___ieee80211_stop_tx_ba_session(),
   sets HT_AGG_STATE_STOPPING

From here on, the order doesn't matter exactly, but:

 1. driver calls ieee80211_start_tx_ba_cb_irqsafe(),
    setting HT_AGG_STATE_START_CB
 2. driver calls ieee80211_stop_tx_ba_cb_irqsafe(),
    setting HT_AGG_STATE_STOP_CB
 3. the worker will run ieee80211_start_tx_ba_cb() for
    HT_AGG_STATE_START_CB
 4. the worker will run ieee80211_stop_tx_ba_cb() for
    HT_AGG_STATE_STOP_CB

(the order could also be 1./3./2./4.)

This will cause ieee80211_start_tx_ba_cb() to send out the AddBA
request frame to the AP and arm the timer, but we're already in
the middle of stopping and so the ieee80211_stop_tx_ba_cb() will
no longer assume it needs to stop anything.

Prevent this by checking for WANT_STOP/STOPPING in the start CB,
and warn if we're sending a frame on a stopping session.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230618214436.e5b52777462a.I0b2ed6658e81804279f5d7c9c1918cb1f6626bf2@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2023-06-19 13:12:43 +02:00
Johannes Berg
6f2db6588b wifi: mac80211: agg-tx: add a few locking assertions 
This is all true today, but difficult to understand since
the callers are in other files etc. Add two new lockdep
assertions to make things easier to read.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230618214436.7f03dec6a90b.I762c11e95da005b80fa0184cb1173b99ec362acf@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2023-06-19 13:12:43 +02:00
Johannes Berg
888a325fe0 wifi: ieee80211: reorder presence checks in MLE per-STA profile 
In ieee80211_mle_sta_prof_size_ok(), the presence
checks aren't ordered by field order, so that's a
bit confusing. Reorder them.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230618214436.fdbf17320a37.I517cf27fdc3f6e5d6a2615182da47ba4bdf14039@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2023-06-19 13:12:43 +02:00
Ilan Peer
8eb8dd2ffb wifi: mac80211: Support link removal using Reconfiguration ML element 
Add support for handling link removal indicated by the
Reconfiguration Multi-Link element.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230618214436.d8a046dc0c1a.I4dcf794da2a2d9f4e5f63a4b32158075d27c0660@changeid
[use cfg80211_links_removed() API instead]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2023-06-19 13:12:43 +02:00
Benjamin Berg
79973d5cfd wifi: mac80211: add set_active_links variant not locking sdata 
There are cases where keeping sdata locked for an operation. Add a
variant that does not take sdata lock to permit these usecases.

Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2023-06-19 13:11:35 +02:00