blk_queue_dma_alignment (9) Linux Manual Page
blk_queue_dma_alignment – set dma length and memory alignment
Synopsis
void blk_queue_dma_alignment(struct request_queue *q, int mask);Arguments
q
-
- the request queue for the device
mask
- alignment mask
Description
set required memory and length alignment for direct dma transactions. this is used when building direct io requests for the queue.