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_base.h | |
| parent | ffa381d6373b10e83dbdac425fb72affc64084f3 (diff) | |
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_base.h')
| -rw-r--r-- | drivers/scsi/mpt3sas/mpt3sas_base.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.h b/drivers/scsi/mpt3sas/mpt3sas_base.h index cca14ab570f5..badd8230cce2 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_base.h +++ b/drivers/scsi/mpt3sas/mpt3sas_base.h @@ -1246,6 +1246,7 @@ typedef void (*MPT3SAS_FLUSH_RUNNING_CMDS)(struct MPT3SAS_ADAPTER *ioc); * which ensures the syncrhonization between cli/sysfs_show path. * @atomic_desc_capable: Atomic Request Descriptor support. * @GET_MSIX_INDEX: Get the msix index of high iops queues. + * @multipath_on_hba: flag to determine multipath on hba is enabled or not * @port_table_list: list containing HBA's wide/narrow port's info */ struct MPT3SAS_ADAPTER { @@ -1540,6 +1541,7 @@ struct MPT3SAS_ADAPTER { PUT_SMID_DEFAULT put_smid_default; GET_MSIX_INDEX get_msix_index_for_smlio; + u8 multipath_on_hba; struct list_head port_table_list; }; |