scsi: megaraid_sas: Send all non-RW I/Os for TYPE_ENCLOSURE device through firmware

The driver issues all non-ReadWrite I/Os for TYPE_ENCLOSURE devices through
the fast path with invalid dev handle. Fast path in turn directs all the
I/Os to the firmware. As firmware stopped handling those I/Os from SAS3.5
generation of controllers (Ventura generation and onwards) this will lead
to I/O failures.

Switch the driver to issue all the non-ReadWrite I/Os for TYPE_ENCLOSURE
devices directly to firmware for SAS3.5 generation of controllers and
later.

Link: https://lore.kernel.org/r/20210528131307.25683-2-chandrakanth.patil@broadcom.com
Cc: <stable@vger.kernel.org> # v5.11+
Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com>
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c
index 2221175..cd94a0c 100644 (file)
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
@@ -3203,6 +3203,8 @@ megasas_build_io_fusion(struct megasas_instance *instance,
 {
        int sge_count;
        u8  cmd_type;
+       u16 pd_index = 0;
+       u8 drive_type = 0;
        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;
@@ -3237,8 +3239,12 @@ megasas_build_io_fusion(struct megasas_instance *instance,
                megasas_build_syspd_fusion(instance, scp, cmd, true);
                break;
        case NON_READ_WRITE_SYSPDIO:
-               if (instance->secure_jbod_support ||
-                   mr_device_priv_data->is_tm_capable)
+               pd_index = MEGASAS_PD_INDEX(scp);
+               drive_type = instance->pd_list[pd_index].driveType;
+               if ((instance->secure_jbod_support ||
+                    mr_device_priv_data->is_tm_capable) ||
+                    (instance->adapter_type >= VENTURA_SERIES &&
+                    drive_type == TYPE_ENCLOSURE))
                        megasas_build_syspd_fusion(instance, scp, cmd, false);
                else
                        megasas_build_syspd_fusion(instance, scp, cmd, true);