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| author | Jan Höppner <hoeppner@linux.ibm.com> | 2018-04-27 17:55:27 +0300 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2019-07-11 21:39:54 +0300 |
| commit | a0610a8ad80743ff916ebef0490418a298e5bd23 (patch) | |
| tree | 54d79459c0b1ae93fd3f5ccd0b1fc6a62bec5c10 /drivers/s390/block/dasd_eckd.h | |
| parent | 91dc4a197569230683ca8bad551e655a4bf14c30 (diff) | |
| download | linux-a0610a8ad80743ff916ebef0490418a298e5bd23.tar.xz | |
s390/dasd: Make dasd_setup_queue() a discipline function
ECKD, FBA, and the DIAG discipline use slightly different block layer
settings. In preparation of even more diverse queue settings, make
dasd_setup_queue() a discipline function.
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
Reviewed-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'drivers/s390/block/dasd_eckd.h')
| -rw-r--r-- | drivers/s390/block/dasd_eckd.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/s390/block/dasd_eckd.h b/drivers/s390/block/dasd_eckd.h index 4226936427ec..13112ba9f93f 100644 --- a/drivers/s390/block/dasd_eckd.h +++ b/drivers/s390/block/dasd_eckd.h @@ -109,6 +109,12 @@ #define DASD_ECKD_PATH_THRHLD 256 #define DASD_ECKD_PATH_INTERVAL 300 +/* + * Maximum number of blocks to be chained + */ +#define DASD_ECKD_MAX_BLOCKS 190 +#define DASD_ECKD_MAX_BLOCKS_RAW 256 + /***************************************************************************** * SECTION: Type Definitions ****************************************************************************/ |