Re: [RESEND][PATCH 07/10][SCSI]mpt2sas: Added Reply Descriptor Post Queue (RDPQ) Array support

Martin K. Petersen
2017-04-26T22:26:07Z

Sreekanth,

> We need to satisfy this condition on those system where 32 bit dma
> consistent mask is not supported and it only supports 64 bit dma
> consistent mask. So on these system we can't set
> pci_set_consistent_dma_mask() to DMA_BIT_MASK(32).

Which systems are you talking about?

It seems a bit unrealistic to require all devices to support 64-bit DMA.

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Martin K. Petersen Oracle Linux Engineering