326 Commits

Author SHA1 Message Date
Johannes Berg
6c608cd696 iwlwifi: mvm: fix access to BSS elements
BSS elements are protected using RCU, so we need to use
RCU properly to access them, fix that.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210805130823.fd8b5791ab44.Iba26800a6301078d3782fb249c476dd8ac2bf3c6@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-08-26 23:35:17 +03:00
Johannes Berg
105167830d iwlwifi: mvm: treat MMPDUs in iwl_mvm_mac_tx() as bcast
There's no need for all the complicated conditions here, any
bufferable MMPDUs or MMPDUs for client interfaces are already
coming through the TXQ interface, not iwl_mvm_mac_tx().

Simplify the logic.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210802172232.3939f7c5c43a.I1d5cb5262e31a000023d79acbb897b8db50adf0d@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-08-26 23:33:25 +03:00
Johannes Berg
366fc672d6 iwlwifi: mvm: clean up number of HW queues
Since switching to mac80211 TXQs, we no longer need to
advertise more hardware queues than ACs, since we don't
even set QUEUE_CONTROL anyway, so the vif->hw_queue[]
mapping array won't be used.

All we need (at least for now) is for hw->queues to
indicate that we have enough queues to handle QoS.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210802172232.80611a3c1ee7.I8a3d2b269421b6d8bada8c12cce3e095e6cfaeed@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-08-26 23:33:25 +03:00
Johannes Berg
de34d1c1d3 iwlwifi: mvm: restrict FW SMPS request
The firmware SMPS request should only be honoured if the
connection is currently with HE and on 160 MHz, so check
that and then potentially reapply any request if the BW
changes.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210802172232.0cdcac5660da.I9ee7956fd4f48399855d1f97728bc58b36caf112@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-08-26 23:33:22 +03:00
Mordechay Goodstein
1a81bddf7f iwlwifi: mvm: remove trigger EAPOL time event
EAPOL failure results in deauthentication with various reasons, not
related to AUTH failure specifically, so we just merge AUTH failure
with failed to assoc to AP.

Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210802172232.2ff350d85eab.I02c5b5d29c0d5c2e014bd1081b07ed33772ae04d@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-08-26 23:33:21 +03:00
David S. Miller
007b312c6f Lots of changes:
* aggregation handling improvements for some drivers
  * hidden AP discovery on 6 GHz and other HE 6 GHz
    improvements
  * minstrel improvements for no-ack frames
  * deferred rate control for TXQs to improve reaction
    times
  * virtual time-based airtime scheduler
  * along with various little cleanups/fixups
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Merge tag 'mac80211-next-for-net-next-2021-06-25' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes berg says:

====================
Lots of changes:
 * aggregation handling improvements for some drivers
 * hidden AP discovery on 6 GHz and other HE 6 GHz
   improvements
 * minstrel improvements for no-ack frames
 * deferred rate control for TXQs to improve reaction
   times
 * virtual time-based airtime scheduler
 * along with various little cleanups/fixups
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-28 13:06:12 -07:00
Johannes Berg
15fae3410f mac80211: notify driver on mgd TX completion
We have mgd_prepare_tx(), but sometimes drivers may want/need
to take action when the exchange finishes, whether successfully
or not.

Add a notification to the driver on completion, i.e. call the
new method mgd_complete_tx().

To unify the two scenarios, and to add more information, make
both of them take a struct that has the duration (prepare only),
subtype (both) and success (complete only).

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210618133832.5d94e78f6230.I6dc979606b6f28701b740d7aab725f7853a5a155@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2021-06-23 13:10:46 +02:00
Ilan Peer
7b3954a1d6 iwlwifi: mvm: Explicitly stop session protection before unbinding
In case of unbinding, the FW would remove the session protection time
events without sending a notification, so explicitly cancel the
session protection, so future requests for mgd_prepare_tx() would not
assume that the session protection is running.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210618105614.7c30f85ed241.Ibc19fdbefca7135f2c4ea83d0aef6b81b5033dcd@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-06-22 16:57:55 +03:00
Johannes Berg
8835a64f74 iwlwifi: mvm: don't change band on bound PHY contexts
When we have a P2P Device active, we attempt to only change the
PHY context it uses when we get a new remain-on-channel, if the
P2P Device is the only user of the PHY context.

This is fine if we're switching within a band, but if we're
switching bands then the switch implies a removal and re-add
of the PHY context, which isn't permitted by the firmware while
it's bound to an interface.

Fix the code to skip the unbind/release/... cycle only if the
band doesn't change (or we have old devices that can switch the
band on the fly as well.)

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210612142637.e9ac313f70f3.I713b9d109957df7e7d9ed0861d5377ce3f8fccd3@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-06-22 15:11:12 +03:00
Ilan Peer
e8fe3b41c3 iwlwifi: mvm: Add support for 6GHz passive scan
When doing scan while 6GHz channels are not enabled, the 6GHz band
is not scanned. Thus, if there are no APs on the 2GHz and 5GHz bands
(that will allow discovery of geographic location etc. that would
allow enabling the 6GHz channels) but there are non collocated APs
on 6GHz PSC channels these would never be discovered.

To overcome this, FW added support for performing passive UHB scan
in case no APs were discovered during scan on the 2GHz and 5GHz
channels.

Add support for enabling such scan when the following conditions are
met:

- 6GHz channels are supported but not enabled by regulatory.
- Station interface is not associated or less than a defined time
  interval passed from the last resume or HW reset flows.
- At least 4 channels are included in the scan request
- The scan request includes the widlcard SSID.
- At least 50 minutes passed from the last 6GHz passive scan.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210331121101.7c7bd00e0aeb.Ib226ad57e416b43a710c36a78a617d4243458b99@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-04-14 12:07:17 +03:00
Johannes Berg
5e1688ce91 iwlwifi: mvm: clean up queue sync implementation
When we do queue sync, it's confusing that we have the structures
declared in the FW API header files that aren't really firmware,
and the union is also confusing - especially now in the code that
checks the size on the return.

So rework this: change the type of sync and whether to do it in a
synchronous fashion to arguments, and build the data structure in
the function, so we don't need the union.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210331121101.f62833fd9893.I612d7ac1c655ec4880329360e15d207698c750bc@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-04-14 12:07:16 +03:00
Johannes Berg
5f8a3561ea iwlwifi: mvm: write queue_sync_state only for sync
We use mvm->queue_sync_state to wait for synchronous queue sync
messages, but if an async one happens inbetween we shouldn't
clear mvm->queue_sync_state after sending the async one, that
can run concurrently (at least from the CPU POV) with another
synchronous queue sync.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210331121101.d11c9bcdb4aa.I0772171dbaec87433a11513e9586d98b5d920b5f@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-04-14 12:07:16 +03:00
Emmanuel Grumbach
2360acbd5e iwlwifi: mvm: don't allow CSA if we haven't been fully associated
"Fully associated" means that we heard a beacon with the DTIM
information and the firmware is configured to track the beacons.
Since the firmware needs to track the beacons for the CSA, we
can't configure the firmware for CSA before it knows when the
beacons are expected otherwise we'd get ASSERT 301D.
If we are required to start CSA before we told the firmware
when the beacons are expected to arrive, just report a
failure and let mac80211 disconnect.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210330162204.9adaedeb59e4.Idaad6aaf3f9759d023b8e00b10064915c0db9aa3@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-04-14 12:05:26 +03:00
Shaul Triebitz
ee1a02d760 iwlmvm: set properly NIC_NOT_ACK_ENABLED flag
The STA_CTXT_HE_NIC_NOT_ACK_ENABLED flag tells the firmware
whether *we* support ack-enabled.
So what should be checked is our *own* capability and not
the *peer's* capability.

Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210210171218.59f44e210096.I8f31968f6f7303255e212d869ca0131becd309aa@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-02-11 01:52:11 +02:00
Emmanuel Grumbach
b06b598664 iwlwifi: mvm: enhance a print in CSA flows
Add the count and the mode to the modify CSA flow.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210210135352.361bc0f024ef.I904f269858b3123b7d6532f049c7f92b63fb8807@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-02-10 14:37:28 +02:00
Kalle Valo
b7e6725df7 iwlwifi patches intended for v5.12
* Check FW notification sizes for robustness;
 * Improvements in the NAPI implementation;
 * Implement a workaround for CCA-EXT;
 * Add new FW API support;
 * Fix a CSA bug;
 * Implement PHY integration version parsing;
 * A bit of refactoring;
 * One more CSA bug fix, this time in the AP side;
 * Support for new So devices and a bit of reorg;
 * Per Platform Antenna Gain (PPAG) fixes and improvements;
 * Improvements in the debug framework;
 * Some other clean-ups and small fixes.
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Merge tag 'iwlwifi-next-for-kalle-2021-02-05' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next

iwlwifi patches intended for v5.12

* Check FW notification sizes for robustness;
* Improvements in the NAPI implementation;
* Implement a workaround for CCA-EXT;
* Add new FW API support;
* Fix a CSA bug;
* Implement PHY integration version parsing;
* A bit of refactoring;
* One more CSA bug fix, this time in the AP side;
* Support for new So devices and a bit of reorg;
* Per Platform Antenna Gain (PPAG) fixes and improvements;
* Improvements in the debug framework;
* Some other clean-ups and small fixes.

# gpg: Signature made Fri 05 Feb 2021 12:04:21 PM EET using RSA key ID 1A3CC5FA
# gpg: Good signature from "Luciano Roth Coelho (Luca) <luca@coelho.fi>"
# gpg:                 aka "Luciano Roth Coelho (Intel) <luciano.coelho@intel.com>"
2021-02-08 18:52:00 +02:00
Mordechay Goodstein
119c2a13a3 iwlwifi: mvm: add triggers for MLME events
For debug we add auth/assoc failed event and disconnect event.

Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210131201907.fa62d6770dd1.I5b2ea2e5316ebed94ed77ff0a31d78a9672e4016@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-02-05 11:57:41 +02:00
Johannes Berg
b1fdc2505a iwlwifi: mvm: advertise BIGTK client support if available
If the firmware has support, then advertise it to the stack and
send the key down. Since we re-check the protection in the host
anyway, we don't really need to do anything on RX except that we
should drop frames that the firmware _knows_ are replay errors,
since beacon filtering might otherwise result in replays being
possible.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210205110447.f5a3d53301b3.I23e84c9bb0b039d9106a07e9d6847776757f9029@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-02-05 11:56:40 +02:00
Johannes Berg
9aae43a450 iwlwifi: mvm: simplify TX power setting
There's no need to double this code, just put it into the common
code that's called in all the cases.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210117164916.1f75d426ebe4.I58f6612f7e168c655bdef206a53e5bc117c84cf5@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-02-05 11:55:19 +02:00
Shaul Triebitz
701625803c iwlwifi: mvm: csa: do not abort CSA before disconnect
While disconnecting from the AP due to bad channel switch
params (e.g. too long Tx block), do not send the firmware
'CSA abort' before disconnecting. That causes canceling the
immediate quiet and can cause transmitting data before the
disconnection happens.

Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210117164916.b9af359a675f.I996fc7eb3d94e9539f8b117017c428448c42c7ad@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-02-05 11:55:16 +02:00
Emmanuel Grumbach
00520b7a2a iwlwifi: mvm: don't check system_pm_mode without mutex held
When we want to stop TX'ing because we are suspending, we
have two options: either we check system_pm_mode or we
check the mvm's status that has a bit for the suspend
flow.
The latter is better because test_bit is atomic. Also
add a call to synchronize_net after we set the bit to
make sure that all the new Tx see the bit before we
actually complete the suspend flow.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210117130510.243c88781302.I5c0379c5a7e5d49410569e7fcd2fff7a419c6dea@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-02-05 11:52:34 +02:00
Mordechay Goodstein
d4e3a341b8 iwlwifi: mvm: add support for new flush queue response
In the new api all the flush in the FW is done before we
get the response and in the response we only get the updated
read pointer and all queued packets don't get anymore rx_tx
per packet to free the queued packet, so driver needs to free
all queued packets on flushed queue at once after flush response.

Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210117130510.4bd0eca8c0ef.I1601aad2eb2cc83f6f73b8ca52be57bb9fd626ab@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-02-05 11:52:30 +02:00
Johannes Berg
f7d6ef33a7 iwlwifi: mvm: handle CCA-EXT delay firmware notification
If there are frequent CCA delays due to the extension channel
as detected by the firmware, and we're on 2.4 GHz, then handle
this by disconnecting (with a reconnect hint).

When we disconnect, we'll also update our capabilities to use
only 20 MHz on the next connection (if it's on 2.4 GHz) as to
avoid the use of the extension channel that has too much noise.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210117130510.4de9c363b0b5.I709b7e6f73a7537c53f22d7418927691259de8a8@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-02-05 11:52:30 +02:00
Jakub Kicinski
c358f95205 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
drivers/net/can/dev.c
  b552766c872f ("can: dev: prevent potential information leak in can_fill_info()")
  3e77f70e7345 ("can: dev: move driver related infrastructure into separate subdir")
  0a042c6ec991 ("can: dev: move netlink related code into seperate file")

  Code move.

drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
  57ac4a31c483 ("net/mlx5e: Correctly handle changing the number of queues when the interface is down")
  214baf22870c ("net/mlx5e: Support HTB offload")

  Adjacent code changes

net/switchdev/switchdev.c
  20776b465c0c ("net: switchdev: don't set port_obj_info->handled true when -EOPNOTSUPP")
  ffb68fc58e96 ("net: switchdev: remove the transaction structure from port object notifiers")
  bae33f2b5afe ("net: switchdev: remove the transaction structure from port attributes")

  Transaction parameter gets dropped otherwise keep the fix.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-28 17:09:31 -08:00
Johannes Berg
a05829a722 cfg80211: avoid holding the RTNL when calling the driver
Currently, _everything_ in cfg80211 holds the RTNL, and if you
have a slow USB device (or a few) you can get some bad lock
contention on that.

Fix that by re-adding a mutex to each wiphy/rdev as we had at
some point, so we have locking for the wireless_dev lists and
all the other things in there, and also so that drivers still
don't have to worry too much about it (they still won't get
parallel calls for a single device).

Then, we can restrict the RTNL to a few cases where we add or
remove interfaces and really need the added protection. Some
of the global list management still also uses the RTNL, since
we need to have it anyway for netdev management, but we only
hold the RTNL for very short periods of time here.

Link: https://lore.kernel.org/r/20210122161942.81df9f5e047a.I4a8e1a60b18863ea8c5e6d3a0faeafb2d45b2f40@changeid
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> [marvell driver issues]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2021-01-26 11:55:50 +01:00
Sara Sharon
bf544e9aa5 iwlwifi: mvm: skip power command when unbinding vif during CSA
In the new CSA flow, we remain associated during CSA, but
still do a unbind-bind to the vif. However, sending the power
command right after when vif is unbound but still associated
causes FW to assert (0x3400) since it cannot tell the LMAC id.

Just skip this command, we will send it again in a bit, when
assigning the new context.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210115130252.64a2254ac5c3.Iaa3a9050bf3d7c9cd5beaf561e932e6defc12ec3@changeid
2021-01-25 15:52:45 +02:00
Gustavo A. R. Silva
5a2abdcadc iwlwifi: mvm: Fix fall-through warnings for Clang
In preparation to enable -Wimplicit-fallthrough for Clang, fix multiple
warnings by explicitly using the fallthrough pseudo-keyword as a
replacement for a number of "fall through" markings.

Notice that Clang doesn't recognize "fall through" comments as
implicit fall-through.

Link: https://github.com/KSPP/linux/issues/115
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201117135053.GA13248@embeddedor
2020-12-11 20:20:24 +02:00
Johannes Berg
87d9564e14 iwlwifi: mvm: disconnect if channel switch delay is too long
If the channel switch delay that we would incur after the channel
switch actually happens is longer than the quiet time we're willing
to tolerate, disconnect as well.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20201209231352.3bc3449922da.Ib0255deb67b2fc21317e274adcacb545bb1dc669@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2020-12-10 00:16:04 +02:00
Sara Sharon
caf4637712 iwlwifi: mvm: fix a race in CSA that caused assert 0x3420
When we get a channel switch with a very long quiet period, we schedule
a work to disconnect after a while. This work runs in background. In the
meanwhile, we keep getting beacons and sending FW modify command for each.
This has a potential race, where we modify the CSA after we aborted it.

Protect the flow by setting csa_failed to true in case we abort, and check
it before sending the modify command.

This required a modification to the way we treat csa_failed in
iwl_mvm_post_channel_switch:
1. The variable isn't being reset anymore, so we can still look at it in
iwl_mvm_channel_switch_rx_beacon. This is fine, since we reset it when
starting a new CSA.
2. There is no more early return in case of csa_failed. This is fine,
since before this patch csa_failed was set only for GO, and for GO the
function is only resetting the power settings, which we want to restore
even in case of failure.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20201209231352.b023856bdf39.I4ed0149e0018fe5e1ae3c2a1cbc614954016063f@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2020-12-10 00:16:02 +02:00
Johannes Berg
8e99ea8d09 iwlwifi: use SPDX tags
Use SPDX tags instead of the long copyright notices.  Also cleanup
some duplicate copyright notices and combine the years where possible.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20201210000603.481bcb512a6f.I8146abe5a637079e7336209f23cb26af98b12b31@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2020-12-10 00:15:31 +02:00
Johannes Berg
2f7a04c7b0 iwlwifi: mvm: do more useful queue sync accounting
We're currently doing accounting on the queue sync with an
atomic variable that counts down the number of remaining
notifications that we still need.

As we've been hitting issues in this area, modify this to
track a bitmap of queues, not just the number of queues,
and print out the remaining bitmap in the warning.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20201209231352.0a3fa177cd6b.I7c69ff999419368266279ec27dd618eb450908b3@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2020-12-10 00:14:18 +02:00
Johannes Berg
e20a5c9f76 iwlwifi: mvm: clear up iwl_mvm_notify_rx_queue() argument type
The argument type to iwl_mvm_notify_rx_queue() is currently just
a u8 *, but that's misleading because we actually need the inner
data to be of type struct iwl_mvm_internal_rxq_notif, because we
interpret it when we get it back from the device (to check the
sync bool and possibly the cookie.)

Therefore, clear up any potential confusion and require that the
data passed is of type struct iwl_mvm_internal_rxq_notif *.

Also, while at it, rename the "count" to "notif_size" as "count"
doesn't really clearly say what it's counting.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20201209231352.d28e14682bdc.I9ac366aa97db045be4daa4ba263267a3ac6a6a2f@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2020-12-10 00:14:15 +02:00
Emmanuel Grumbach
59fa61f3fd iwlwifi: remove sw_csum_tx
This was a hack done to test the data path of devices that
didn't support well CSUM offload in Tx. This is not needed
anymore.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20201209231352.6c9fc9fb48d5.I2aaebf90e6fe81860105d049a8d35746fa8d86c2@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2020-12-10 00:14:15 +02:00
Emmanuel Grumbach
cdaba91726 iwlwifi: follow the new inclusive terminology
The new inclusive terminology requires to change a few
terms that were used in iwlwifi.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20201209231352.1eb4c8625f36.I1b17b68d4a8e77071da3e15ffbd902d15c1d4938@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2020-12-10 00:14:12 +02:00
Luca Coelho
eae94cf82d iwlwifi: mvm: add support for 6GHz
Add support to the 6GHz band (aka. Ultra High Band or UHB).  This
allows us to scan and connect to channels in that band, including all
the relevant features, such as preferred scan channels, colocated
channels etc.

Co-developed-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Co-developed-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Co-developed-by: Tova Mussai <tova.mussai@intel.com>
Signed-off-by: Tova Mussai <tova.mussai@intel.com>
Co-developed-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Co-developed-by: Tali Levi Rovinsky <Tali.Levi-rovinsky@intel.com>
Signed-off-by: Tali Levi Rovinsky <Tali.Levi-rovinsky@intel.com>
Co-developed-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Co-developed-by: Ayala Beker <ayala.beker@intel.com>
Signed-off-by: Ayala Beker <ayala.beker@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20201210000657.0fdbfc3d7352.Idb648536faf21716e2ab2c6d6890d3e49f719cd3@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2020-12-10 00:12:29 +02:00
Sara Sharon
fe56d05ee6 iwlwifi: mvm: fix kernel panic in case of assert during CSA
During CSA, we briefly nullify the phy context, in __iwl_mvm_unassign_vif_chanctx.
In case we have a FW assert right after it, it remains NULL though.
We end up running into endless loop due to mac80211 trying repeatedly to
move us to ASSOC state, and we keep returning -EINVAL. Later down the road
we hit a kernel panic.

Detect and avoid this endless loop.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20201107104557.d64de2c17bff.Iedd0d2afa20a2aacba5259a5cae31cb3a119a4eb@changeid
2020-11-10 20:45:36 +02:00
Avraham Stern
97cc16943f iwlwifi: mvm: write queue_sync_state only for sync
We use mvm->queue_sync_state to wait for synchronous queue sync
messages, but if an async one happens inbetween we shouldn't
clear mvm->queue_sync_state after sending the async one, that
can run concurrently (at least from the CPU POV) with another
synchronous queue sync.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Fixes: 3c514bf831ac ("iwlwifi: mvm: add a loose synchronization of the NSSN across Rx queues")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20201107104557.51a3148f2c14.I0772171dbaec87433a11513e9586d98b5d920b5f@changeid
2020-11-10 20:45:34 +02:00
Emmanuel Grumbach
58ddd9b6d1 iwlwifi: mvm: don't send a CSA command the firmware doesn't know
We introduced a new flow to remove an on-going CSA but we
assumed the firwmare understands the
CHANNEL_SWITCH_TIME_EVENT_CMD. This is not true for 7265 and down.

Don't send this command for those devices, but rather use the older
command.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20201008181047.2574e3e47927.Ic0c56411da1096e9a45ee5c3383edf777c5baca0@changeid
2020-10-08 20:14:50 +03:00
Nathan Errera
2c2c3647cd iwlwifi: mvm: support ADD_STA_CMD_API_S ver 12
ADD_STA_CMD_API_S ver 12 was added in order to properly support
auxiliary activities in CDB NICs. In the new version we don't need
to allocate an aux station at initialization, instead we add an
aux station only when an auxiliary activity that requires a dedicated Tx
queue is needed. For now the only case we need this kind of activity is
when using hot spot 2.0

Signed-off-by: Nathan Errera <nathan.errera@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20201008180656.700e6e2e3077.Icdd807b6a3ad3fed806449ea0a13f856aa20e632@changeid
2020-10-08 20:09:37 +03:00
Nathan Errera
f9084775de iwlwifi: mvm: prepare roc_done_wk to work sync
As part of changes made to properly support auxiliary activities in CDB
NICs, an aux sta will be added when using hot spot 2.0 and will need
to be removed when roc flow is done.
In order to do so, prepare the roc_done_wk to work synchronously as the
rm_aux_sta is a SYNC command.

Since now all of th iwl_mvm_flush_sta function are using it sync,
removed the flag argument from the function.

Signed-off-by: Nathan Errera <nathan.errera@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20201008180656.71b441c8b682.Ia1d216cb680308b91d6da9f73e23ae9f4baac79f@changeid
2020-10-08 20:09:35 +03:00
Sara Sharon
df72037369 iwlwifi: mvm: re-enable TX after channel switch
The FW relies on the re-enablement of the TX in order to know
it can exit quiet mode. Currently in case of CSA with quiet mode,
the quiet mode is never cancelled, resulting in a complete traffic
hang.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20201008180656.fee389c83ded.I09550fdadb61f899242d7e7b7578672372e2b7fe@changeid
2020-10-08 20:09:33 +03:00
Johannes Berg
f0d748ad45 iwlwifi: mvm: stop claiming NL80211_EXT_FEATURE_SET_SCAN_DWELL
We've removed the code that handles it appropriately, so stop
claiming we support it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20201008180656.3b8936035273.I7799caa225295de44558e9da093b720afe606359@changeid
2020-10-08 20:09:30 +03:00
Nathan Errera
be9ae34ead iwlwifi: mvm: get number of stations from TLV
FW is changing the max number of supported stations. To adapt to the
change we get the max number from the TLV and act according to the new
number.

Signed-off-by: Nathan Errera <nathan.errera@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20201008180656.863ab470babc.I393223392f36436663c4e66add03fefe77b74e60@changeid
2020-10-08 20:09:25 +03:00
Nathan Errera
2a42aea795 iwlwifi: mvm: support more GTK rekeying algorithms
add and use new API version for GTK rekeying. This will allow our
firmware to do GTK rekeying for more algorithms (GCMP 128, GCMP 256,
SAE).

Signed-off-by: Nathan Errera <nathan.errera@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20200930161256.be16c51fef3c.If4fac0fbc5bede4679b5f875b60c4e9a6ea7ca7c@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2020-10-01 22:00:58 +03:00
Ilan Peer
b68bd2e314 iwlwifi: mvm: Add FTM initiator RTT smoothing logic
The overcome instabilities in the RTT results add smoothing logic
to the reported results. In short, the smoothing logic tracks the
RTT average of each responder for a period of time, and in case
a new RTT results is found to be a spur, the tracked RTT average
is reported instead of the current RTT measurement.

Smooth logic debug configuration using iwl-dbg-cfg.ini:

- MVM_FTM_INITIATOR_ENABLE_SMOOTH: Set to 1 to enable smoothing logic
 (default=0).
- MVM_FTM_INITIATOR_SMOOTH_ALPHA: A value between 0 - 100, defining
  the weight of the current RTT results vs. the RTT average tracked
  based on the previous results. A value of 100 means use only the
  current RTT results.
- MVM_FTM_INITIATOR_SMOOTH_AGE_SEC: The maximal time in seconds in which
  the RTT average tracked based on previous results is considered valid.
- MVM_FTM_INITIATOR_SMOOTH_UNDERSHOOT: if the current RTT is positive
  and below the RTT average by at least this value, report the average
  RTT instead of the current one. In units of picoseconds.
- MVM_FTM_INITIATOR_SMOOTH_OVERSHOOT: if the current RTT is positive
  and above the RTT average by at least this value, report the average
  RTT instead of the current one. In units of picoseconds.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20200930161256.48a9cec2081b.Iaec1e29f738232adfe9e2ea8e9eb9b6ff0323ae1@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2020-10-01 22:00:55 +03:00
Mordechay Goodstein
e80bfd117d iwlwifi: fw: add default value for iwl_fw_lookup_cmd_ver
For new APIs this avoids checking every return if it's
IWL_FW_CMD_VER_UNKNOWN (99) or it's lower than the new API value

Done with spatch:
-iwl_fw_lookup_cmd_ver(E1, E2, E3)
+iwl_fw_lookup_cmd_ver(E1, E2, E3, IWL_FW_CMD_VER_UNKNOWN)

Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20200928121852.70bec6eb8008.I6ea78553801d33f7ed10fcd2e4be4ba781fe469a@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2020-10-01 21:59:37 +03:00
Luca Coelho
fbb7957d28 iwlwifi: support REDUCE_TX_POWER_CMD version 6
The new version of the command can support more subbands and CDB, so
it can contain more data than earlier versions.  Implement support for
the new version of the command, even though we don't have more data to
write to it yet.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20200928121852.d709a8f17d1d.I9fa54883667c72dabf6d813c70be77538d9af38d@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2020-10-01 21:59:34 +03:00
Luca Coelho
216cdfb522 iwlwifi: add a common struct for all iwl_tx_power_cmd versions
Create a common structure to contain all different versions of the
tx_power_cmd instead of making a union of the different structs
everywhere we need them.  Also move the common part of these structs
into a separate structure (instead of reusing v3) and leave the
per_chain_restriction part out of the common part, because this will
change in version 6 of the command (which will be added soon).

While at it, rename per_chain_restriction to per_chain to shorten it.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20200928121852.4f0bea9fe077.Ib3b540a8288af32d6fa213448e13f82763f85bc9@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2020-10-01 21:59:33 +03:00
Andrei Otcheretianski
a1c2ff3024 iwlwifi: mvm: Don't install CMAC/GMAC key in AP mode
Due to a missing break, the management multicast key was installed even
though we don't really support it. Fix that, so mac80211 would know that
it should protect frames in software.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20200926002540.019a64e96d44.I609a995611ac5286e442cd54f764eaf4a7249ac0@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2020-10-01 21:58:21 +03:00
Emmanuel Grumbach
903b3f9bad iwlwifi: mvm: split a print to avoid a WARNING in ROC
A print in the remain on channel code was too long and caused
a WARNING, split it.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Fixes: dc28e12f2125 ("iwlwifi: mvm: ROC: Extend the ROC max delay duration & limit ROC duration")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20200930102759.58d57c0bdc68.Ib06008665e7bf1199c360aa92691d9c74fb84990@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2020-10-01 21:57:42 +03:00