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authorNicholas Bellinger <nab@linux-iscsi.org>2013-03-18 13:15:57 -0700
committerNicholas Bellinger <nab@linux-iscsi.org>2013-03-19 17:24:28 -0700
commitf002a24388cc460c8a9be7d446a9871f7c9d52b6 (patch)
tree32934cefb174c6665fdc26d29eb5f0606552deaa /drivers/target
parent72c77539fd56f5ba8dd538df9f3ce0e331fe601c (diff)
downloadlinux-f002a24388cc460c8a9be7d446a9871f7c9d52b6.tar.gz
target/file: Bump FD_MAX_SECTORS to 2048 to handle 1M sized I/Os
This patch bumps the default FILEIO backend FD_MAX_SECTORS value from 1024 -> 2048 in order to allow block_size=512 to handle 1M sized I/Os. The current default rejects I/Os larger than 512K in sbc_parse_cdb(): [12015.915146] SCSI OP 2ah with too big sectors 1347 exceeds backend hw_max_sectors: 1024 [12015.977744] SCSI OP 2ah with too big sectors 2048 exceeds backend hw_max_sectors: 1024 This issue is present in >= v3.5 based kernels, introduced after the removal of se_task logic. Reported-by: Viljami Ilola <azmulx@netikka.fi> Cc: <stable@vger.kernel.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target')
-rw-r--r--drivers/target/target_core_file.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/target/target_core_file.h b/drivers/target/target_core_file.h
index bc02b018ae4..37ffc5bd239 100644
--- a/drivers/target/target_core_file.h
+++ b/drivers/target/target_core_file.h
@@ -7,7 +7,7 @@
#define FD_DEVICE_QUEUE_DEPTH 32
#define FD_MAX_DEVICE_QUEUE_DEPTH 128
#define FD_BLOCKSIZE 512
-#define FD_MAX_SECTORS 1024
+#define FD_MAX_SECTORS 2048
#define RRF_EMULATE_CDB 0x01
#define RRF_GOT_LBA 0x02