Re: [PATCH 0/7] hisi_sas: Misc bugfixes and an optimisation patch
From: Martin K. Petersen
Date: Wed Oct 10 2018 - 21:58:36 EST
> However it does block us in future from enabling SCSI MQ in the driver.
We're going to remove the legacy I/O path so I'm not particularly keen
on merging something that's going in the opposite direction.
> This is because the IPTT index must be a unique value per HBA. However,
> if we switched to SCSI MQ, the block layer tag becomes unique per queue,
> and not per HBA.
That doesn't sound right.
Martin K. Petersen Oracle Linux Engineering