Re: [PATCH] scsi: hisi_sas: Limit max hw sectors for v3 HW

[Martin K. Petersen]

On Thu, 23 Jun 2022 20:41:59 +0800, John Garry wrote:

> If the controller is behind an IOMMU then the IOMMU IOVA caching range can
> affect performance, as discussed in [0].
> 
> Limit the max HW sectors to not exceed this limit. We need to hardcode
> the value until a proper DMA mapping API is available.
> 
> [0] https://lore.kernel.org/linux-iommu/20210129092120.1482-1-thunder.leizhen@xxxxxxxxxx/
> 
> [...]

Applied to 5.19/scsi-fixes, thanks!

[1/1] scsi: hisi_sas: Limit max hw sectors for v3 HW
      https://git.kernel.org/mkp/scsi/c/fce54ed02757

-- 
Martin K. Petersen	Oracle Linux Engineering