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Cross-merge networking fixes after downstream PR (net-6.12-rc6).
Conflicts:
drivers/net/wireless/intel/iwlwifi/mvm/mld-mac80211.c
cbe84e9ad5e2 ("wifi: iwlwifi: mvm: really send iwl_txpower_constraints_cmd")
188a1bf89432 ("wifi: mac80211: re-order assigning channel in activate links")
https://lore.kernel.org/all/20241028123621.7bbb131b@canb.auug.org.au/
net/mac80211/cfg.c
c4382d5ca1af ("wifi: mac80211: update the right link for tx power")
8dd0498983ee ("wifi: mac80211: Fix setting txpower with emulate_chanctx")
drivers/net/ethernet/intel/ice/ice_ptp_hw.h
6e58c3310622 ("ice: fix crash on probe for DPLL enabled E810 LOM")
e4291b64e118 ("ice: Align E810T GPIO to other products")
ebb2693f8fbd ("ice: Read SDP section from NVM for pin definitions")
ac532f4f4251 ("ice: Cleanup unused declarations")
https://lore.kernel.org/all/20241030120524.1ee1af18@canb.auug.org.au/
No adjacent changes.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The current flow in _ieee80211_set_active_links() does not align with the
operational requirements of drivers that groups multiple hardware
under a single wiphy. These drivers (e.g ath12k) rely on channel
assignment to determine the appropriate hardware for each link. Without
this, the drivers cannot correctly establish the link interface.
Currently in _ieee80211_set_active_links(), after calling
drv_change_vif_links() on the driver, the state of all connected stations
is updated via drv_change_sta_links(). This is followed by handling keys
in the links, and finally, assigning the channel to the links.
Consequently, drv_change_sta_links() prompts drivers to create the station
entry at their level and within their firmware. However, since channels
have not yet been assigned to links at this stage, drivers have not
created the necessary link interface for establishing link stations,
leading to failures in activating the links.
Therefore, re-order the logic so that after drv_change_vif_links() and
removing the old links, channels are assigned to newly added links.
Following this, the flow proceeds to station handling.
Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Link: https://patch.msgid.link/20241001085034.2745669-1-quic_adisi@quicinc.com
[Johannes: fix iwlwifi to deal with the changes]
Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Stop looking at deflink and start using the actual link.
Initialize the power settings upon link init.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20241007144851.2685dab8e1ab.I1d82cbdb2dda020aee4a225bd9a134f7d82dd810@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Call to ieee80211_color_collision_detection_work() needs wiphy lock to
be held (see lockdep assert in cfg80211_bss_color_notify()). Not locking
wiphy causes the following lockdep error:
WARNING: CPU: 2 PID: 42 at net/wireless/nl80211.c:19505 cfg80211_bss_color_notify+0x1a4/0x25c
Modules linked in:
CPU: 2 PID: 42 Comm: kworker/u8:3 Tainted: G W 6.4.0-02327-g36c6cb260481 #1048
Hardware name:
Workqueue: phy1 ieee80211_color_collision_detection_work
pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : cfg80211_bss_color_notify+0x1a4/0x25c
lr : cfg80211_bss_color_notify+0x1a0/0x25c
sp : ffff000002947d00
x29: ffff000002947d00 x28: ffff800008e1a000 x27: ffff000002bd4705
x26: ffff00000d034000 x25: ffff80000903cf40 x24: 0000000000000000
x23: ffff00000cb70720 x22: 0000000000800000 x21: ffff800008dfb008
x20: 000000000000008d x19: ffff00000d035fa8 x18: 0000000000000010
x17: 0000000000000001 x16: 000003564b1ce96a x15: 000d69696d057970
x14: 000000000000003b x13: 0000000000000001 x12: 0000000000040000
x11: 0000000000000001 x10: ffff80000978f9c0 x9 : ffff0000028d3174
x8 : ffff800008e30000 x7 : 0000000000000000 x6 : 0000000000000028
x5 : 000000000002f498 x4 : ffff00000d034a80 x3 : 0000000000800000
x2 : ffff800016143000 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
cfg80211_bss_color_notify+0x1a4/0x25c
ieee80211_color_collision_detection_work+0x20/0x118
process_one_work+0x294/0x554
worker_thread+0x70/0x440
kthread+0xf4/0xf8
ret_from_fork+0x10/0x20
irq event stamp: 77372
hardirqs last enabled at (77371): [<ffff800008a346fc>] _raw_spin_unlock_irq+0x2c/0x4c
hardirqs last disabled at (77372): [<ffff800008a28754>] el1_dbg+0x20/0x48
softirqs last enabled at (77350): [<ffff8000089e120c>] batadv_send_outstanding_bcast_packet+0xb8/0x120
softirqs last disabled at (77348): [<ffff8000089e11d4>] batadv_send_outstanding_bcast_packet+0x80/0x120
The wiphy lock cannot be taken directly from color collision detection
delayed work (ieee80211_color_collision_detection_work()) because this
work is cancel_delayed_work_sync() under this wiphy lock causing a
potential deadlock( see [0] for details).
To fix that ieee80211_color_collision_detection_work() could be
converted to a wiphy work and cancel_delayed_work_sync() can be simply
replaced by wiphy_delayed_work_cancel() serving the same purpose under
wiphy lock.
This could potentially fix [1].
[0]: https://lore.kernel.org/linux-wireless/D4A40Q44OAY2.W3SIF6UEPBUN@freebox.fr/
[1]: https://lore.kernel.org/lkml/000000000000612f290618eee3e5@google.com/
Reported-by: Nicolas Escande <nescande@freebox.fr>
Signed-off-by: Remi Pommarel <repk@triplefau.lt>
Link: https://patch.msgid.link/20240924192805.13859-3-repk@triplefau.lt
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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In order to support DFS with MLO, handle the link ID now passed from
cfg80211, adjust the code to do everything per link and call the
notifications to cfg80211 correctly.
Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Link: https://patch.msgid.link/20240906064426.2101315-7-quic_adisi@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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This reverts commit ce9e660ef32e ("wifi: mac80211: move radar detect work to sdata").
To enable radar detection with MLO, it’s essential to handle it on a
per-link basis. This is because when using MLO, multiple links may already
be active and beaconing. In this scenario, another link should be able to
initiate a radar detection. Also, if underlying links are associated with
different hardware devices but grouped together for MLO, they could
potentially start radar detection simultaneously. Therefore, it makes
sense to manage radar detection settings separately for each link by moving
them back to a per-link data structure.
Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Link: https://patch.msgid.link/20240906064426.2101315-2-quic_adisi@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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The color change finalize work might be called after the link is
stopped, which might lead to a kernel crash.
Signed-off-by: Michael-CY Lee <michael-cy.lee@mediatek.com>
Link: https://patch.msgid.link/20240705074326.11172-1-michael-cy.lee@mediatek.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Collect the CSA data in ieee80211_link_data_managed and
ieee80211_link_data into a csa sub-struct to clean up a
bit and make adding new things more obvious.
Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240506215543.29f954b1f576.I9a683a9647c33d4dd3011aade6677982428c1082@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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If we see a channel switch announcement on one link for
another, handle that case and start the CSA. The driver
can react to this in whatever way it needs. The stack
will have the ability to track it via the RNR/MLE in the
reporting link's beacon if it sees it for inactive links
and adjust everything accordingly.
Note that currently the timings for the CSA aren't set,
the values are only used by the Intel drivers, and they
don't need this for newer devices that support MLO, so
I've left it out for now.
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240415112355.4d34b6a31be7.Ie8453979f5805873a8411c99346bcc3810cd6476@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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At some point we thought perhaps this could be per link, but
really that didn't happen, and it's confusing. Radar detection
still uses the deflink to allocate the channel, but the work
need not be there. Move it back.
Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240506211311.43bd82c6da04.Ib39bec3aa198d137385f081e7e1910dcbde3aa1b@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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In the unlikely event that link_use_channel fails while activating a
link, mac80211 would go into a bad state. Unfortunately, we cannot
completely avoid failures from drivers in this case.
However, what we can do is to just continue internally anyway and assume
the driver is going to trigger a recovery flow from its side. Doing that
means that we at least have a consistent state in mac80211 allowing such
a recovery flow to succeed.
Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com>
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://msgid.link/20240418115219.1129e89f4b55.I6299678353e50e88b55c99b0bce15c64b52c2804@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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If the links won't actually change, nothing will happen.
This was previously done in the inner function (twice in
some cases), but we shouldn't bother the driver with it.
Clean that up.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240320091155.a8190a312a27.If4e6f5ce8228eda7afac0fc8c17dd731c5da9ed9@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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When doing link switch with a disjoint set of links before
and after the switch, we end up removing all channel contexts,
adding new ones later. This looks like 'idle' to the code now,
and we enter idle which also includes flushing queues. But we
can't actually flush since we don't have a link active (bound
to a channel context), and entering idle just to leave it again
is also wrong.
Fix this by passing through an indication that we shouldn't do
any idle checks in this case.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240320091155.170328bac555.If4a522a9dd3133b91983854b909a4de13aa635da@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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If a link is deactivated, we really cannot sustain any
TDLS connections on that link any more. With the API
now changed, fix this issue and remove TDLS connections.
Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Link: https://msgid.link/20240228095719.a7dd812c37bf.I3474dbde79e9e7a539d47f6f81f32e6c3e459080@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Add changes to start a channel switch as well as finalize it on link basis
in order to support CSA with MLO as well.
Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Link: https://msgid.link/20240130140918.1172387-5-quic_adisi@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Aloka originally suggested that puncturing should be part of
the chandef, so that it's treated correctly. At the time, I
disagreed and it ended up not part of the chandef, but I've
now realized that this was wrong. Even for clients, the RX,
and perhaps more importantly, CCA configuration needs to take
puncturing into account.
Move puncturing into the chandef, and adjust all the code
accordingly. Also add a few tests for puncturing in chandef
compatibility checking.
Link: https://lore.kernel.org/linux-wireless/20220214223051.3610-1-quic_alokad@quicinc.com/
Suggested-by: Aloka Dixit <quic_alokad@quicinc.com>
Link: https://msgid.link/20240129194108.307183a5d2e5.I4d7fe2f126b2366c1312010e2900dfb2abffa0f6@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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For channel contexts, mac80211 currently uses the cfg80211
chandef struct (control channel, center freq(s), width) to
define towards drivers and internally how these behave. In
fact, there are _two_ such structs used, where the min_def
can reduce bandwidth according to the stations connected.
Unfortunately, with EHT this is longer be sufficient, at
least not for all hardware. EHT requires that non-AP STAs
that are connected to an AP with a lower bandwidth than it
(the AP) advertises (e.g. 160 MHz STA connected to 320 MHz
AP) still be able to receive downlink OFDMA and respond to
trigger frames for uplink OFDMA that specify the position
and bandwidth for the non-AP STA relative to the channel
the AP is using. Therefore, they need to be aware of this,
and at least for some hardware (e.g. Intel) this awareness
is in the hardware. As a result, use of the "same" channel
may need to be split over two channel contexts where they
differ by the AP being used.
As a first step, introduce a concept of a channel request
('chanreq') for each interface, to control the context it
requests. This step does nothing but reorganise the code,
so that later the AP's chandef can be added to the request
in order to handle the EHT case described above.
Link: https://msgid.link/20240129194108.2e88e48bd2e9.I4256183debe975c5ed71621611206fdbb69ba330@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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The set_active_links API is intended for link switching, so switching
to no links at all is not supported.
Add a warning to check that.
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240129200054.e3c113f94508.Ia35f927f914bf98dd8f9350dd4f78b1d901b1c1d@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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During ieee80211_set_active_links() we do (among the others):
1. Call drv_change_vif_links() with both old_active and new_active
2. Unassign the chanctx for the removed link(s) (if any)
3. Assign chanctx to the added link(s) (if any)
4. Call drv_change_vif_links() with the new_active links bitmap
The problem here is that during step #1 the driver doesn't know whether
we will activate multiple links simultaneously or are just doing a link
switch, so it can't check there if multiple links are supported/enabled.
(Some of the drivers might enable/disable this option dynamically)
And during step #3, in which the driver already knows that,
returning an error code (for example when multiple links are not
supported or disabled), will cause a warning, and we will still complete
the transition to the new_active links.
(It is hard to undo things in that stage, since we released channels etc.)
Therefore add a driver callback to check if the desired new_active links
will be supported by the driver or not. This callback will be called
in the beginning of ieee80211_set_active_links() so we won't do anything
before we are sure it is supported.
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Link: https://msgid.link/20231220133549.64c4d70b33b8.I79708619be76b8ecd4ef3975205b8f903e24a2cd@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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When setting the interface links, ignore the change iff both the
valid links and the dormant links did not change. This is needed
to support cases where the valid links didn't change but the dormant
links did.
Fixes: 6d543b34dbcf ("wifi: mac80211: Support disabled links during association")
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230928172905.0357b6306587.I7dbfec347949b629fea680d246a650d6207ff217@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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In MLO, we have a per-link debugfs directory which contains the
per-link files. In case of non-MLO we would like to put the per-link
files in the netdev directory to keep it how it was before MLO.
- Upon interface creation the netdev will be created with the per-link
files in it.
- Upon switching to MLO: delete the entire netdev directory and then
recreate it without the per-link files. Then the per-link directories
with the per-link files in it will be created in ieee80211_link_init()
- Upon switching to non-MLO: delete the entire netdev directory
(including the per-link directories) and recreate it with the per-link
files in it.
Note that this also aligns to always call the vif link debugfs
method for the deflink as promised in the documentation, which
wasn't done before.
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230928172905.082e698caca9.I5bef7b2026e0f58b4a958b3d1f459ac5baeccfc9@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Since we're now protecting everything with the wiphy mutex
(and were really using it for almost everything before),
there's no longer any real reason to have a separate wdev
mutex. It may feel better, but really has no value.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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We now hold the wiphy mutex everywhere that we use or
needed the local->mtx, so we don't need this mutex any
more. Remove it.
Most of this change was done automatically with spatch.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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We now hold the wiphy mutex everywhere that we use or
needed the key_mtx, so we don't need this mutex any
more. Remove it.
Most of this change was done automatically with spatch.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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We now hold the wiphy mutex everywhere that we use or
needed the sta_mtx, so we don't need this mutex any
more. Remove it.
Most of this change was done automatically with spatch.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Again this should be per link and will get cancellation
issues, move it to a wiphy work.
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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This work should be made per link as well, and then
will have cancellation issues. Moving it to a wiphy
work already fixes those beforehand.
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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We want to have the wiphy locked for these as well,
so move it to be a wiphy work.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Move the DFS CAC work over to hold the wiphy lock
there without worry about work cancellation.
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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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>
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When the association is complete, do not configure disabled
links, and track them as part of the interface data.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230608163202.c194fabeb81a.Iaefdef5ba0492afe9a5ede14c68060a4af36e444@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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There are some locking changes that will later otherwise
cause conflicts, so merge wireless into wireless-next to
avoid those.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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As a preparation to support disabled/dormant links, add the
following function:
- ieee80211_vif_usable_links(): returns the bitmap of the links
that can be activated. Use this function in all the places that
the bitmap of the usable links is needed.
- ieee80211_vif_is_mld(): returns true iff the vif is an MLD.
Use this function in all the places where an indication that the
connection is a MLD is needed.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230608163202.86e3351da1fc.If6fe3a339fda2019f13f57ff768ecffb711b710a@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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In the normal MLME code we always call
ieee80211_mgd_set_link_qos_params() before
ieee80211_link_info_change_notify() and some drivers,
notably iwlwifi, rely on that as they don't do anything
(but store the data) in their conf_tx.
Fix the order here to be the same as in the normal code
paths, so this isn't broken.
Fixes: 3d9011029227 ("wifi: mac80211: implement link switching")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230608163202.a2a86bba2f80.Iac97e04827966d22161e63bb6e201b4061e9651b@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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This adds the infrastructure to have netdev specific per-link data both
for mac80211 and the driver in debugfs. For the driver, a new callback
is added which is only used if MLO is supported.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230301115906.fb4c947e4df8.I69b3516ddf4c8a7501b395f652d6063444ecad63@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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While often not needed, this considerably simplifies going from a link
specific bss_config to the vif. This helps with e.g. creating link
specific debugfs entries inside drivers.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230301115906.46f701a10ed5.I20390b2a8165ff222d66585915689206ea93222b@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Move color collision report in a dedicated delayed work and do not run
it in interrupt context in order to rate-limit the number of events
reported to userspace. Moreover grab wdev mutex in
ieee80211_color_collision_detection_work routine since it is required
by cfg80211_obss_color_collision_notify().
Tested-by: Nicolas Cavallari <nicolas.cavallari@green-communications.fr>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Fixes: 5f9404abdf2a ("mac80211: add support for BSS color change")
Link: https://lore.kernel.org/r/3f6cf60c892ad40c1cca4a55d62b1224ef1c6ce9.1674644379.git.lorenzo@kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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During link switching, the active links change, so we need to
recalculate the aggregate data in the stations.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Implement an API function and debugfs file to switch
active links.
Also provide an async version of the API so drivers
can call it in arbitrary contexts, e.g. while in the
authorized callback.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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In order to let the driver select active links and properly
make multi-link connections, as a first step isolate the
driver from inactive links, and set the active links to be
only the association link for client-side interfaces. For
AP side nothing changes since APs always have to have all
their links active.
To simplify things, update the for_each_sta_active_link()
API to include the appropriate vif pointer.
This also implies not allocating a chanctx for an inactive
link, which requires a few more changes.
Since we now no longer try to program multiple links to the
driver, remove the check in the MLME code.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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We probably should've done that originally, we already have
about 300 lines of code there, and will add more. Move all
the link code we wrote to a new file.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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