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scsi: megaraid_sas: Do not set fp_possible if TM capable for non-RW syspdIO, change fp_possible to bool 

FIX - firmware wants non-RW SYS PD IOs to avoid FastPath for better
tracking and other functionalities if the device is task management
capable.

Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Shivasharan S 2017-02-10 00:59:30 -08:00 committed by Martin K. Petersen
parent 25fb13dd2d
commit 1d6dbd1752
1 changed files with 10 additions and 5 deletions
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15
drivers/scsi/megaraid/megaraid_sas_fusion.c
View File

@ -2566,7 +2566,8 @@ static void megasas_build_ld_nonrw_fusion(struct megasas_instance *instance,
*/
static void
megasas_build_syspd_fusion(struct megasas_instance *instance,
struct scsi_cmnd *scmd, struct megasas_cmd_fusion *cmd, u8 fp_possible)
struct scsi_cmnd *scmd, struct megasas_cmd_fusion *cmd,
bool fp_possible)
{
u32 device_id;
struct MPI2_RAID_SCSI_IO_REQUEST *io_request;
@ -2687,6 +2688,8 @@ megasas_build_io_fusion(struct megasas_instance *instance,
int sge_count;
u8 cmd_type;
struct MPI2_RAID_SCSI_IO_REQUEST *io_request = cmd->io_request;
struct MR_PRIV_DEVICE *mr_device_priv_data;
mr_device_priv_data = scp->device->hostdata;
/* Zero out some fields so they don't get reused */
memset(io_request->LUN, 0x0, 8);
@ -2715,12 +2718,14 @@ megasas_build_io_fusion(struct megasas_instance *instance,
megasas_build_ld_nonrw_fusion(instance, scp, cmd);
break;
case READ_WRITE_SYSPDIO:
megasas_build_syspd_fusion(instance, scp, cmd, true);
break;
case NON_READ_WRITE_SYSPDIO:
if (instance->secure_jbod_support &&
(cmd_type == NON_READ_WRITE_SYSPDIO))
megasas_build_syspd_fusion(instance, scp, cmd, 0);
if (instance->secure_jbod_support ||
mr_device_priv_data->is_tm_capable)
megasas_build_syspd_fusion(instance, scp, cmd, false);
else
megasas_build_syspd_fusion(instance, scp, cmd, 1);
megasas_build_syspd_fusion(instance, scp, cmd, true);
break;
default:
break;