Commit 5f306aff authored Mar 27, 2020 by David Disseldorp Committed by Martin K. Petersen Mar 29, 2020

scsi: target: increase XCOPY I/O size

The I/O size is already bound by dev_attrib.hw_max_sectors, so increase the
hardcoded XCOPY_MAX_SECTORS maximum to improve performance against
backstores with high-latency.

Link: https://lore.kernel.org/r/20200327141954.955-5-ddiss@suse.de


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

parent 0ad08996

drivers/target/target_core_xcopy.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -5,7 +5,7 @@
		#define XCOPY_TARGET_DESC_LEN 32
		#define XCOPY_SEGMENT_DESC_LEN 28
		#define XCOPY_NAA_IEEE_REGEX_LEN 16
		#define XCOPY_MAX_SECTORS 1024
		#define XCOPY_MAX_SECTORS 4096

		/*
		* SPC4r37 6.4.6.1

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