diff options
| author |   Chandrakanth Patil <chandrakanth.patil@broadcom.com> | 2019-06-25 16:34:32 +0530 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2019-06-27 00:07:36 -0400 |
| commit | ea836f40f8fdb47c7dda2e4aaaa28ae676c3fa41 (patch) | |
| tree | e84761d0db2b6acabbbb0a902b03529757bcc879 /drivers/scsi/megaraid/megaraid_sas_fusion.c | |
| parent | scsi: megaraid_sas: Add support for High IOPS queues (diff) | |
| download | linux-dev-ea836f40f8fdb47c7dda2e4aaaa28ae676c3fa41.tar.xz linux-dev-ea836f40f8fdb47c7dda2e4aaaa28ae676c3fa41.zip | |
scsi: megaraid_sas: Enable coalescing for high IOPS queues
Driver should enable interrupt coalescing (during driver load and after
Controller Reset) for High IOPS queues by masking appropriate bits in IOC
INIT frame.
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas_fusion.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c index 44bfbe8d2ce5..845ca2f94e5c 100644 --- a/drivers/scsi/megaraid/megaraid_sas_fusion.c +++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c @@ -1186,6 +1186,14 @@ megasas_ioc_init_fusion(struct megasas_instance *instance) cpu_to_le32(lower_32_bits(ioc_init_handle)); init_frame->data_xfer_len = cpu_to_le32(sizeof(struct MPI2_IOC_INIT_REQUEST)); + /* + * Each bit in replyqueue_mask represents one group of MSI-x vectors + * (each group has 8 vectors) + */ + if (instance->balanced_mode) + init_frame->replyqueue_mask = + cpu_to_le16(~(~0 << instance->low_latency_index_start / 8)); + req_desc.u.low = cpu_to_le32(lower_32_bits(cmd->frame_phys_addr)); req_desc.u.high = cpu_to_le32(upper_32_bits(cmd->frame_phys_addr)); req_desc.MFAIo.RequestFlags = |