wifi: iwlwifi: release TXQ lock during reclaim

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Much of the work during reclaim can be done without holding the TXQ
lock and releasing the lock means that command submission can happen at
the same time.

Add a new reclaim_lock to prevent parallel cleanup. Release the lock
while working with an internal copy of the txq->read_ptr and only take
the lock again when updating the read pointer after the cleanup is done.

Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20240703125541.2a81021d49ac.I53698ae92fb75a0461d41176db115462cf8be1cd@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

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This commit is contained in:

Benjamin Berg 2024-07-03 12:58:57 +03:00 • committed by Johannes Berg

parent 1a3364e963

commit a2ed933dfe

3 changed files with 54 additions and 33 deletions

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3

drivers/net/wireless/intel/iwlwifi/iwl-trans.h

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6

drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c

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78

drivers/net/wireless/intel/iwlwifi/pcie/tx.c

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