blk_queue_max_segment_size(9) centos man page | unix.com

BLK_QUEUE_MAX_SEGMEN(9) 					   Block Devices					   BLK_QUEUE_MAX_SEGMEN(9)

NAME
       blk_queue_max_segment_size - set max segment size for blk_rq_map_sg

SYNOPSIS
       void blk_queue_max_segment_size(struct request_queue * q, unsigned int max_size);

ARGUMENTS
       q
	   the request queue for the device

       max_size
	   max size of segment in bytes

DESCRIPTION
       Enables a low level driver to set an upper limit on the size of a coalesced segment

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						   BLK_QUEUE_MAX_SEGMEN(9)