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The spec recommends that for transfer length larger than the max-single-cmd
attribute (bMAX_DATA_SIZE_FOR_HPB_SINGLE_CMD) it is possible to couple
pre-requests with the HPB-READ command. Being a recommendation, using
pre-requests can be perceived merely as a means of optimization. A common
practice was to send pre-requests for chunks within some interval, and
leave the READ10 untouched if larger.
Now that the pre-request flows have been removed, all the commands are
single commands. Properly handle this attribute and do not send HPB-READ
for transfer lengths larger than max-single-cmd.
[mkp: resolve conflict]
Fixes: 09d9e4d04187 ("scsi: ufs: ufshpb: Remove HPB2.0 flows")
Link: https://lore.kernel.org/r/20211031123654.17719-1-avri.altman@wdc.com
Reviewed-by: Daejun Park <daejun7.park@samsung.com>
Signed-off-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
9ec5128a8b