RE: [PATCH] scsi: ufs: Increase the maximum data buffer size

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> Measurements have shown that for some UFS devices the maximum
> sequential
> I/O throughput is achieved with a transfer size above 512 KiB. Hence
> increase the maximum size of the data buffer associated with a single
> request from SCSI_DEFAULT_MAX_SECTORS (1024) * 512 bytes = 512 KiB
> into
> 1 GiB.
Did you choose 1GB to align with BLK_DEF_MAX_SECTORS?
If so why not just use it?
Can you share those performance measurements?
For some reason, I always thought that SR performance is saturated somewhere around 1MB.

Thanks,
Avri 
> 
> Note: the maximum data buffer size supported by the UFSHCI specification
> is 65535 * 256 MiB or about 16 TiB.




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