Re: [PATCH v3 3/4] scsi: core: Cap shost max_sectors according to DMA optimum mapping limits

Bart Van Assche
2022-06-08T21:07:13Z

On 6/8/22 10:50, John Garry wrote:
> Please note that this limit only applies if we have an IOMMU enabled for
> the scsi host dma device. Otherwise we are limited by dma direct or
> swiotlb max mapping size, as before.

SCSI host bus adapters that support 64-bit DMA may support much larger
transfer sizes than 128 KiB.

Thanks,

Bart.