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"DQA" is shorthand for "dynamic queue allocation". This
enables on-demand allocation of queues per RA/TID rather than
statically allocating per vif, thus allowing a potential
benefit of various factors.
Please refer to the DOC section this patch adds to sta.h to
see a more in-depth explanation of this feature.
There are many things to take into consideration when working
in DQA mode, and this patch is only one in a series. Note that
default operation mode is non-DQA mode, unless the FW
indicates that it supports DQA mode.
This patch enables support of DQA for a station connected to
an AP, and works in a non-aggregated mode.
When a frame for an unused RA/TID arrives at the driver, it
isn't TXed immediately, but deferred first until a suitable
queue is first allocated for it, and then TXed by a worker
that both allocates the queues and TXes deferred traffic.
When a STA is removed, its queues goes back into the queue
pools for reuse as needed.
Signed-off-by: Liad Kaufman <[email protected]>
Signed-off-by: Emmanuel Grumbach <[email protected]>
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When forming IBSS, mac80211 scans in order to find an already
existing cell to join.
In case the scan does not find any existing cell a new IBSS
cell is formed.
When receiving the beacons of another IBSS cell we should
merge if the other IBSS cell's TSF is higher than ours.
However, currently iwlmvm does not set any timestamp flag in
rx_status so there is no valid rx timestamp to compare the
beacon's TSF to.
The reason for that is that TSF as indicated by the firmware
is at INA time, but up till now mac80211 expected the TSF at
the beginning or end of the MPDU.
Set the flag to the newly added RX_FLAG_MACTIME_PLCP_START flag.
Signed-off-by: Sara Sharon <[email protected]>
Signed-off-by: Emmanuel Grumbach <[email protected]>
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When in AP mode we need to filter in beacons from other APs to update HT
operation mode. As a power optimization the beacons are filtered out when
there are no associated stations. As a result, when there are no
associated stations, we will not update the HT operation mode until a
station connects.
Add a debugfs parameter that allows to disable this optimization.
Signed-off-by: Andrei Otcheretianski <[email protected]>
Signed-off-by: Emmanuel Grumbach <[email protected]>
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Currently firmware is configured to filter out beacons. In case
a beacon was changed - it is waking the host.
However, some vendors change their IEs frequently without any
significant change, and redundant wakeups are triggered as a
result.
As a solution disable beacon filtering when entering d0i3.
Instead, firmware will store the latest beacon and upon exiting
d0i3 it will send it up to the host, so the host can act upon
changes (if there were any).
This beacon will arrive as a dedicated notification - support it
as well.
Signed-off-by: Sara Sharon <[email protected]>
Signed-off-by: Emmanuel Grumbach <[email protected]>
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The commit below called iwl_mvm_mac_ctxt_changed() to handle
a case that the vif is a P2P GO.
However iwl_mvm_mac_ctxt_cmd_go() ignores the number of
associated stations and asks the FW to pass beacons anyways.
Fix this by checking ap_assoc_sta_count parameter, in iwl_mvm_mac_ctxt_cmd_go()
as well, and ask the FW to pass beacons only when there's
at least one associated station.
Signed-off-by: Ayala Beker <[email protected]>
Signed-off-by: Emmanuel Grumbach <[email protected]>
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The firmware knows better what antenna to choose.
Old firmware still need the setting, so use a flag to know
if the driver should choose the antenna or if the firmware
can do it iself.
Signed-off-by: Emmanuel Grumbach <[email protected]>
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Currently when creating a new vif in monitor mode the driver doesn't
allocate a specific station. This causes that in the situation that
tx traffic is injected, the tx queues are not scheduled,
with the result of a TFD queue hang.
Fix that by allocating a station and ensuring its tx queues
are scheduled.
This fixes https://bugzilla.kernel.org/show_bug.cgi?id=104591
Signed-off-by: Chaya Rachel Ivgi <[email protected]>
Signed-off-by: Emmanuel Grumbach <[email protected]>
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[email protected] is not available anymore.
[email protected] should be used instead.
Signed-off-by: Emmanuel Grumbach <[email protected]>
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The fw debug functionality is big enough to warrant
a separate file. Move existing related functions to the new file.
Signed-off-by: Golan Ben-Ami <[email protected]>
Signed-off-by: Emmanuel Grumbach <[email protected]>
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Part of reorganising wireless drivers directory and Kconfig.
Signed-off-by: Kalle Valo <[email protected]>
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