From: Chandrakanth Patil Date: Tue, 25 Jun 2019 11:04:32 +0000 (+0530) Subject: scsi: megaraid_sas: Enable coalescing for high IOPS queues X-Git-Tag: v5.4-rc1~491^2~33 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ea836f40f8fdb47c7dda2e4aaaa28ae676c3fa41;p=platform%2Fkernel%2Flinux-rpi.git 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 Signed-off-by: Chandrakanth Patil Signed-off-by: Martin K. Petersen --- diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h index 5b17d0f..02e6e15 100644 --- a/drivers/scsi/megaraid/megaraid_sas.h +++ b/drivers/scsi/megaraid/megaraid_sas.h @@ -1819,7 +1819,7 @@ struct megasas_init_frame { __le32 pad_0; /*0Ch */ __le16 flags; /*10h */ - __le16 reserved_3; /*12h */ + __le16 replyqueue_mask; /*12h */ __le32 data_xfer_len; /*14h */ __le32 queue_info_new_phys_addr_lo; /*18h */ diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c index 44bfbe8..845ca2f 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 =