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| author | Suganath Prabu S <suganath-prabu.subramani@broadcom.com> | 2019-05-31 15:14:36 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2019-06-19 02:46:26 +0300 |
| commit | 18fd3d8cf903404b2c7cd31a083be4db2e6a2a76 (patch) | |
| tree | 24e8d5377db7bdd1f2c62c87c5353e346733f3c9 /drivers/scsi/mpt3sas/mpt3sas_base.h | |
| parent | 79c74d03d527f8bd6727eba4ed4c22f6b0bca14d (diff) | |
| download | linux-18fd3d8cf903404b2c7cd31a083be4db2e6a2a76.tar.xz | |
scsi: mpt3sas: Add flag high_iops_queues
Aero controllers support balanced performance mode through the ability to
configure queues with different properties.
Reply queues with interrupt coalescing enabled are called "high iops reply
queues" and reply queues with interrupt coalescing disabled are called "low
latency reply queues".
The driver configures a combination of high iops and low latency reply
queues if:
- HBA is an AERO controller;
- MSI-X vectors supported by the HBA is 128;
- Total CPU count in the system more than high iops queue count;
- Driver is loaded with default max_msix_vectors module parameter; and
- System booted in non-kdump mode.
Signed-off-by: Suganath Prabu S <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/mpt3sas/mpt3sas_base.h')
| -rw-r--r-- | drivers/scsi/mpt3sas/mpt3sas_base.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.h b/drivers/scsi/mpt3sas/mpt3sas_base.h index 3309864fe04a..bbbeb88c5a07 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_base.h +++ b/drivers/scsi/mpt3sas/mpt3sas_base.h @@ -355,6 +355,10 @@ struct mpt3sas_nvme_cmd { #define VIRTUAL_IO_FAILED_RETRY (0x32010081) +/* High IOPs definitions */ +#define MPT3SAS_HIGH_IOPS_REPLY_QUEUES 8 +#define MPT3SAS_GEN35_MAX_MSIX_QUEUES 128 + /* OEM Specific Flags will come from OEM specific header files */ struct Mpi2ManufacturingPage10_t { MPI2_CONFIG_PAGE_HEADER Header; /* 00h */ @@ -1209,6 +1213,7 @@ struct MPT3SAS_ADAPTER { atomic64_t total_io_cnt; bool msix_load_balance; u16 thresh_hold; + u8 high_iops_queues; /* internal commands, callback index */ u8 scsi_io_cb_idx; |