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| author | Anastasia Kovaleva <a.kovaleva@yadro.com> | 2022-11-14 13:25:00 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2022-11-24 02:16:19 +0000 |
| commit | 689d94ec208cfdf95101d99319cb4bdc5f55774d (patch) | |
| tree | cf7189709ee5338a1c81710fbc60e1e04babdcae /drivers/target/target_core_xcopy.h | |
| parent | 9375031ee40b66c8fd2fc24d5fbea47b69f53de6 (diff) | |
| download | linux-689d94ec208cfdf95101d99319cb4bdc5f55774d.tar.bz2 | |
scsi: target: core: Change the way target_xcopy_do_work() sets restiction on max I/O
To determine how many blocks sends in one command, the minimum value is
selected from the hw_max_sectors of both devices. In target_xcopy_do_work,
hw_max_sectors are used as blocks, not sectors; it also ignores the fact
that sectors can be of different sizes, for example 512 and 4096
bytes. Because of this, a number of blocks can be transmitted that the
device will not be able to accept.
Change the selection of max transmission size into bytes.
Reviewed-by: Konstantin Shelekhin <k.shelekhin@yadro.com>
Reviewed-by: Dmitriy Bogdanov <d.bogdanov@yadro.com>
Signed-off-by: Anastasia Kovaleva <a.kovaleva@yadro.com>
Link: https://lore.kernel.org/r/20221114102500.88892-4-a.kovaleva@yadro.com
Reviewed-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/target/target_core_xcopy.h')
| -rw-r--r-- | drivers/target/target_core_xcopy.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/target/target_core_xcopy.h b/drivers/target/target_core_xcopy.h index e5f20005179a..0aad7dc65895 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 4096 +#define XCOPY_MAX_BYTES 16777216 /* 16 MB */ /* * SPC4r37 6.4.6.1 |