Christoph Hellwig fde46e9682 scsi: wd719x: use per-command private data ...

Add the SCB onto the scsi command allocation and use dma streaming mappings
for it only when in use.  This avoid possibly calling dma_alloc_coherent
under a lock or even in irq context, while also making the code simpler.

Thanks to Ondrej Zary for testing and various bug fixes.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

2018-11-15 14:27:08 -05:00

9.5 KiB

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