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authorSara Sharon <sara.sharon@intel.com>2016-03-23 16:32:02 +0200
committerLuca Coelho <luciano.coelho@intel.com>2016-05-10 22:14:42 +0300
commitb915c10174fb7df533b7928046129c8f626cca42 (patch)
tree49aac88d328859f845f1826a1ef0938071d56999 /drivers/scsi
parent2dd493434db68f89c690a665e3ac3dad11b69134 (diff)
iwlwifi: mvm: add reorder buffer per queue
Next hardware will direct packets to core based on the TCP/UDP streams. This logic can create holes in reorder buffer since packets that belong to other stream were directed to a different core. However, those are valid holes and the packets can be indicated in L3 order. The hardware will utilize a mechanism of informing the driver of the normalized ssn and the driver shall release all packets that SN is lower than the nssn. This enables managing the reorder across the queues without sharing any data between them. The reorder buffer is allocated and released directly in the RX path in order to avoid various races between control path and rx path. The code utilizes the internal messaging to notify rx queues of when to delete the reorder buffer. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Diffstat (limited to 'drivers/scsi')
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