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blk_queue_bounce_limit
Langue: en
Version: May 2009 (fedora - 06/07/09)
Section: 9 (Appels noyau Linux)
NAME
blk_queue_bounce_limit - set bounce buffer limit for queueSYNOPSIS
- void blk_queue_bounce_limit(struct request_queue * q, u64 dma_addr);
ARGUMENTS
q
- the request queue for the device
dma_addr
- bus address limit
DESCRIPTION
Different hardware can have different requirements as to what pages it can do I/O directly to. A low level driver can call blk_queue_bounce_limit to have lower memory pages allocated as bounce buffers for doing I/O to pages residing above dma_addr.
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