blk-mq, scsi-mq, UFS

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Hi all,

could someone explain to me:

- what is the difference between blk-mq and scsi-mq
- why don't I observe large speedups when running the same tiotests on Linux
v3.12 (which has no blk-mq) and Linux v3.14 (which does have blk-mq) on a
Xilinx Zynq development board (the two Linux versions are configured by
Xilinx Zynq and I know only how to add kernel command line parameters)?
- when Linux v3.17 becomes available (and Xilinx Zynq ports it for their
development board) will I see large speedups reading/writing to the target
SDD (which is driven through the UFS driver)?

Any and all info would be greatly appreciated.

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