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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>
This commit is contained in:
David Disseldorp 2020-03-27 15:19:53 +01:00 committed by Martin K. Petersen
parent 0ad08996da
commit 5f306aff34
1 changed files with 1 additions and 1 deletions
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2
drivers/target/target_core_xcopy.h
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@ -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