diff options
| author |   Viswas G <Viswas.G@microchip.com> | 2020-10-05 20:20:08 +0530 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2020-10-07 23:50:04 -0400 |
| commit | 05c6c029a44d9f43715577e33e95eba87f44d285 (patch) | |
| tree | dccb72c9440d181cdd01520d380fb4b800c19830 /drivers/scsi/pm8001/pm8001_defs.h | |
| parent | scsi: sym53c8xx_2: Fix sizeof() mismatch (diff) | |
| download | linux-dev-05c6c029a44d9f43715577e33e95eba87f44d285.tar.xz linux-dev-05c6c029a44d9f43715577e33e95eba87f44d285.zip | |
scsi: pm80xx: Increase number of supported queues
Current driver uses fixed number of Inbound and Outbound queues and all of
the I/O, TMF and internal requests are submitted through those. A global
spin lock is used to control the shared access. This can create a lock
contention and it is real bottleneck in the I/O path.
To avoid this, the number of supported Inbound and Outbound queues is
increased to 64, and the number of queues used is decided based on number
of CPU cores online and number of MSI-X vectors allocated. Also add locks
per queue instead of using the global lock.
Link: https://lore.kernel.org/r/20201005145011.23674-2-Viswas.G@microchip.com.com
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Signed-off-by: Ruksar Devadi <Ruksar.devadi@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/pm8001/pm8001_defs.h')
| -rw-r--r-- | drivers/scsi/pm8001/pm8001_defs.h | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/drivers/scsi/pm8001/pm8001_defs.h b/drivers/scsi/pm8001/pm8001_defs.h index 1c7f15fd69ce..a4f52a5a449e 100644 --- a/drivers/scsi/pm8001/pm8001_defs.h +++ b/drivers/scsi/pm8001/pm8001_defs.h @@ -77,10 +77,8 @@ enum port_type { /* driver compile-time configuration */ #define PM8001_MAX_CCB 256 /* max ccbs supported */ #define PM8001_MPI_QUEUE 1024 /* maximum mpi queue entries */ -#define PM8001_MAX_INB_NUM 1 -#define PM8001_MAX_OUTB_NUM 1 -#define PM8001_MAX_SPCV_INB_NUM 1 -#define PM8001_MAX_SPCV_OUTB_NUM 4 +#define PM8001_MAX_INB_NUM 64 +#define PM8001_MAX_OUTB_NUM 64 #define PM8001_CAN_QUEUE 508 /* SCSI Queue depth */ /* Inbound/Outbound queue size */ @@ -94,11 +92,6 @@ enum port_type { #define PM8001_MAX_MSIX_VEC 64 /* max msi-x int for spcv/ve */ #define USI_MAX_MEMCNT_BASE 5 -#define IB (USI_MAX_MEMCNT_BASE + 1) -#define CI (IB + PM8001_MAX_SPCV_INB_NUM) -#define OB (CI + PM8001_MAX_SPCV_INB_NUM) -#define PI (OB + PM8001_MAX_SPCV_OUTB_NUM) -#define USI_MAX_MEMCNT (PI + PM8001_MAX_SPCV_OUTB_NUM) #define CONFIG_SCSI_PM8001_MAX_DMA_SG 528 #define PM8001_MAX_DMA_SG CONFIG_SCSI_PM8001_MAX_DMA_SG enum memory_region_num { @@ -112,6 +105,12 @@ enum memory_region_num { }; #define PM8001_EVENT_LOG_SIZE (128 * 1024) +/** + * maximum DMA memory regions(number of IBQ + number of IBQ CI + * + number of OBQ + number of OBQ PI) + */ +#define USI_MAX_MEMCNT (USI_MAX_MEMCNT_BASE + 1 + ((2 * PM8001_MAX_INB_NUM) \ + + (2 * PM8001_MAX_OUTB_NUM))) /*error code*/ enum mpi_err { MPI_IO_STATUS_SUCCESS = 0x0, |