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authorDavid Disseldorp <ddiss@suse.de>2020-03-27 15:19:53 +0100
committerMartin K. Petersen <martin.petersen@oracle.com>2020-03-29 18:10:59 -0400
commit5f306aff34809fca68bb36476e66552ac241a9c4 (patch)
tree25e71bfc504d03864dc326cbabe9e0d64acb517a
parent0ad08996da05b6b735d4963dceab7d2a4043607c (diff)
downloadlinux-5f306aff34809fca68bb36476e66552ac241a9c4.tar.bz2
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>
-rw-r--r--drivers/target/target_core_xcopy.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/target/target_core_xcopy.h b/drivers/target/target_core_xcopy.h
index 9558974185ea..f1aaf7140798 100644
--- a/drivers/target/target_core_xcopy.h
+++ b/drivers/target/target_core_xcopy.h
@@ -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