Commit 1d6dbd17 authored by Shivasharan S's avatar Shivasharan S Committed by Martin K. Petersen
Browse files

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


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: default avatarKashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: default avatarShivasharan S <shivasharan.srikanteshwara@broadcom.com>
Reviewed-by: default avatarHannes Reinecke <hare@suse.com>
Reviewed-by: default avatarTomas Henzl <thenzl@redhat.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 25fb13dd

drivers/scsi/megaraid/megaraid_sas_fusion.c

+10 −5
Original line number Diff line number Diff line
@@ -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;

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