diff options
| author | Tyrel Datwyler <tyreld@linux.ibm.com> | 2022-03-22 12:44:43 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-04-20 09:08:32 +0200 |
| commit | 43427547a3e42c499adbe32f4edb234dff9d49d9 (patch) | |
| tree | b9929327f92b81307495f115e628220f1ec06887 | |
| parent | d7c5d79e50be6e06b669141e3db1f977a0dd4e8e (diff) | |
scsi: ibmvscsis: Increase INITIAL_SRP_LIMIT to 1024
[ Upstream commit 0bade8e53279157c7cc9dd95d573b7e82223d78a ]
The adapter request_limit is hardcoded to be INITIAL_SRP_LIMIT which is
currently an arbitrary value of 800. Increase this value to 1024 which
better matches the characteristics of the typical IBMi Initiator that
supports 32 LUNs and a queue depth of 32.
This change also has the secondary benefit of being a power of two as
required by the kfifo API. Since, Commit ab9bb6318b09 ("Partially revert
"kfifo: fix kfifo_alloc() and kfifo_init()"") the size of IU pool for each
target has been rounded down to 512 when attempting to kfifo_init() those
pools with the current request_limit size of 800.
Link: https://lore.kernel.org/r/20220322194443.678433-1-tyreld@linux.ibm.com
Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c index 25d2741cdf96..b97140661119 100644 --- a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c +++ b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c @@ -44,7 +44,7 @@ #define IBMVSCSIS_VERSION "v0.2" -#define INITIAL_SRP_LIMIT 800 +#define INITIAL_SRP_LIMIT 1024 #define DEFAULT_MAX_SECTORS 256 #define MAX_TXU 1024 * 1024 |