diff options
| author | Sreekanth Reddy <sreekanth.reddy@broadcom.com> | 2020-10-27 18:38:46 +0530 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2020-11-04 18:42:25 -0500 |
| commit | 324c122fc0a41d258239c853854eefd186ae1290 (patch) | |
| tree | d4463c33c311be559749c6bc0d778895fd349fa7 /drivers/scsi/mpt3sas/mpt3sas_ctl.c | |
| parent | ffa381d6373b10e83dbdac425fb72affc64084f3 (diff) | |
| download | linux-324c122fc0a41d258239c853854eefd186ae1290.tar.bz2 | |
scsi: mpt3sas: Add module parameter multipath_on_hba
Add module parameter multipath_on_hba to enable/disable multi-port path
topology support. By default this feature is enabled on SAS3.5 HBA device
and disabled on SAS3 &SAS2.5 HBA devices.
When this feature is disabled then driver uses a default
PhysicalPort(PortID) number i.e. 255 instead of the PhysicalPort number
provided by HBA firmware.
Link: https://lore.kernel.org/r/20201027130847.9962-14-sreekanth.reddy@broadcom.com
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/mpt3sas/mpt3sas_ctl.c')
| -rw-r--r-- | drivers/scsi/mpt3sas/mpt3sas_ctl.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/scsi/mpt3sas/mpt3sas_ctl.c b/drivers/scsi/mpt3sas/mpt3sas_ctl.c index 0f2b681449e6..b21aa55768ae 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_ctl.c +++ b/drivers/scsi/mpt3sas/mpt3sas_ctl.c @@ -902,8 +902,10 @@ _ctl_do_mpt_command(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command karg, (Mpi2SmpPassthroughRequest_t *)mpi_request; u8 *data; - /* ioc determines which port to use */ - smp_request->PhysicalPort = 0xFF; + if (!ioc->multipath_on_hba) { + /* ioc determines which port to use */ + smp_request->PhysicalPort = 0xFF; + } if (smp_request->PassthroughFlags & MPI2_SMP_PT_REQ_PT_FLAGS_IMMEDIATE) data = (u8 *)&smp_request->SGL; |