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authorTyrel Datwyler <tyreld@linux.ibm.com>2022-03-22 22:44:43 +0300
committerMartin K. Petersen <martin.petersen@oracle.com>2022-03-30 06:39:24 +0300
commit0bade8e53279157c7cc9dd95d573b7e82223d78a (patch)
treea1e3ce5e296ae1a0c440e72672a45caec47b7e30 /drivers/scsi
parentbc5519c18a32ce855bb51b9f5eceb77a9489d080 (diff)
downloadlinux-0bade8e53279157c7cc9dd95d573b7e82223d78a.tar.xz
scsi: ibmvscsis: Increase INITIAL_SRP_LIMIT to 1024
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>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c2
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 80238e6a3c98..eee1a24f7e15 100644
--- a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
+++ b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
@@ -36,7 +36,7 @@
#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