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authorXiang Chen <chenxiang66@hisilicon.com>2018-05-21 18:09:14 +0800
committerMartin K. Petersen <martin.petersen@oracle.com>2018-05-28 22:40:31 -0400
commitfa3be0f23139ddc4dffbfdef6bbd118e30dfcafe (patch)
treec5129234d999f94cff6bd5b43076ec825e8bd0c6 /drivers/uio
parent757db2dae2c79b1f713043fcc13542683963fa82 (diff)
scsi: hisi_sas: change slot index allocation mode
Currently we find the lowest available empty bit in the IPTT bitmap to allocate the IPTT for a command. To reduce possibility of hitting unknown SoC bugs and also aid in the debugging of those same bugs, change the allocation mode. The next allocation method is to use the next free slot adjacent to the most recently allocated slot, in a round-robin fashion. Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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