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scsi: megaraid_sas: Update optimal queue depth for SAS and NVMe devices

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Ideally, optimal queue depth will be provided by firmware.  The driver
defines will be used as a fallback mechanism in case the FW assisted QD is
not supported.  The driver defined values provide optimal queue depth for
most of the drives and the workloads, as is learned from the firmware
assisted QD results.

Link: https://lore.kernel.org/r/1579000882-20246-4-git-send-email-anand.lodnoor@broadcom.com
Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com>
Signed-off-by: Anand Lodnoor <anand.lodnoor@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Anand Lodnoor 2020-01-14 16:51:14 +05:30 committed by Martin K. Petersen
parent a7faf81d78
commit 6e73550670
1 changed files with 2 additions and 2 deletions
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4
drivers/scsi/megaraid/megaraid_sas.h
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@ -2233,9 +2233,9 @@ enum MR_PD_TYPE {
/* JBOD Queue depth definitions */ /* JBOD Queue depth definitions */
#define MEGASAS_SATA_QD 32 #define MEGASAS_SATA_QD 32
#define MEGASAS_SAS_QD 64 #define MEGASAS_SAS_QD 256
#define MEGASAS_DEFAULT_PD_QD 64 #define MEGASAS_DEFAULT_PD_QD 64
#define MEGASAS_NVME_QD 32 #define MEGASAS_NVME_QD 64
#define MR_DEFAULT_NVME_PAGE_SIZE 4096 #define MR_DEFAULT_NVME_PAGE_SIZE 4096
#define MR_DEFAULT_NVME_PAGE_SHIFT 12 #define MR_DEFAULT_NVME_PAGE_SHIFT 12