diff options
| author | Gilbert Wu <gilbert.wu@microsemi.com> | 2019-08-22 15:38:58 -0500 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2019-08-29 18:31:38 -0400 |
| commit | 5e6a9760f7da4dd86cca43ac6423695d6cb0dff4 (patch) | |
| tree | 13afa30ad2d684ff37192d17666b37cc06dadc24 /drivers/scsi | |
| parent | 01f2ef6d18e70c92bbf3743be4b908f52a059263 (diff) | |
scsi: smartpqi: add module param for exposure order
Expose physical devices before logical devices.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Gilbert Wu <gilbert.wu@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/smartpqi/smartpqi_init.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index 8fd5ffc55792..4324234aa26c 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -145,6 +145,12 @@ MODULE_PARM_DESC(lockup_action, "Action to take when controller locked up.\n" "\t\tSupported: none, reboot, panic\n" "\t\tDefault: none"); +static int pqi_expose_ld_first; +module_param_named(expose_ld_first, + pqi_expose_ld_first, int, 0644); +MODULE_PARM_DESC(expose_ld_first, + "Expose logical drives before physical drives."); + static char *raid_levels[] = { "RAID-0", "RAID-4", @@ -1988,6 +1994,8 @@ static int pqi_update_scsi_devices(struct pqi_ctrl_info *ctrl_info) unsigned int num_valid_devices; bool is_physical_device; u8 *scsi3addr; + unsigned int physical_index; + unsigned int logical_index; static char *out_of_memory_msg = "failed to allocate memory, device discovery stopped"; @@ -2050,19 +2058,23 @@ static int pqi_update_scsi_devices(struct pqi_ctrl_info *ctrl_info) device = NULL; num_valid_devices = 0; + physical_index = 0; + logical_index = 0; for (i = 0; i < num_new_devices; i++) { - if (i < num_physicals) { + if ((!pqi_expose_ld_first && i < num_physicals) || + (pqi_expose_ld_first && i >= num_logicals)) { is_physical_device = true; - phys_lun_ext_entry = &physdev_list->lun_entries[i]; + phys_lun_ext_entry = + &physdev_list->lun_entries[physical_index++]; log_lun_ext_entry = NULL; scsi3addr = phys_lun_ext_entry->lunid; } else { is_physical_device = false; phys_lun_ext_entry = NULL; log_lun_ext_entry = - &logdev_list->lun_entries[i - num_physicals]; + &logdev_list->lun_entries[logical_index++]; scsi3addr = log_lun_ext_entry->lunid; } |