From: Chandrakanth Patil chandrakanth.patil@broadcom.com
commit 79db830162b733f5f3ee80f0673eeeb0245fe38b upstream.
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... 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 Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/scsi/megaraid/megaraid_sas_fusion.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-)
--- 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_i { 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_i 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);