Commit ea836f40 authored by Chandrakanth Patil's avatar Chandrakanth Patil Committed by Martin K. Petersen

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: default avatarKashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: default avatarChandrakanth Patil <chandrakanth.patil@broadcom.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 132147d7
...@@ -1819,7 +1819,7 @@ struct megasas_init_frame { ...@@ -1819,7 +1819,7 @@ struct megasas_init_frame {
__le32 pad_0; /*0Ch */ __le32 pad_0; /*0Ch */
__le16 flags; /*10h */ __le16 flags; /*10h */
__le16 reserved_3; /*12h */ __le16 replyqueue_mask; /*12h */
__le32 data_xfer_len; /*14h */ __le32 data_xfer_len; /*14h */
__le32 queue_info_new_phys_addr_lo; /*18h */ __le32 queue_info_new_phys_addr_lo; /*18h */
......
...@@ -1186,6 +1186,14 @@ megasas_ioc_init_fusion(struct megasas_instance *instance) ...@@ -1186,6 +1186,14 @@ megasas_ioc_init_fusion(struct megasas_instance *instance)
cpu_to_le32(lower_32_bits(ioc_init_handle)); cpu_to_le32(lower_32_bits(ioc_init_handle));
init_frame->data_xfer_len = cpu_to_le32(sizeof(struct MPI2_IOC_INIT_REQUEST)); 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.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.u.high = cpu_to_le32(upper_32_bits(cmd->frame_phys_addr));
req_desc.MFAIo.RequestFlags = req_desc.MFAIo.RequestFlags =
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment