hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

hpsa: refactor hpsa_figure_bus_target_lun 

setup for sas transport. Need to set the
bus and target accordingly.

Reviewed-by: Scott Teel <scott.teel@pmcs.com>
Reviewed-by: Justin Lindley <justin.lindley@pmcs.com>
Reviewed-by: Kevin Barnett <kevin.barnett@pmcs.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Don Brace <don.brace@pmcs.com>
Reviewed-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Kevin Barnett 2015-11-04 15:51:45 -06:00 committed by Martin K. Petersen
parent 75d23d894a
commit c795505a74
2 changed files with 17 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
drivers/scsi/hpsa.c
View File

@ -3512,38 +3512,37 @@ static int is_ext_target(struct ctlr_info *h, struct hpsa_scsi_dev_t *device)
return 0;
}
/* Helper function to assign bus, target, lun mapping of devices.
* Puts non-external target logical volumes on bus 0, external target logical
* volumes on bus 1, physical devices on bus 2. and the hba on bus 3.
/*
* Helper function to assign bus, target, lun mapping of devices.
* Logical drive target and lun are assigned at this time, but
* physical device lun and target assignment are deferred (assigned
* in hpsa_find_target_lun, called by hpsa_scsi_add_entry.)
*/
*/
static void figure_bus_target_lun(struct ctlr_info *h,
u8 *lunaddrbytes, struct hpsa_scsi_dev_t *device)
{
u32 lunid = le32_to_cpu(*((__le32 *) lunaddrbytes));
u32 lunid = get_unaligned_le32(lunaddrbytes);
if (!is_logical_dev_addr_mode(lunaddrbytes)) {
/* physical device, target and lun filled in later */
if (is_hba_lunid(lunaddrbytes))
hpsa_set_bus_target_lun(device, 3, 0, lunid & 0x3fff);
hpsa_set_bus_target_lun(device,
HPSA_HBA_BUS, 0, lunid & 0x3fff);
else
/* defer target, lun assignment for physical devices */
hpsa_set_bus_target_lun(device, 2, -1, -1);
hpsa_set_bus_target_lun(device,
HPSA_PHYSICAL_DEVICE_BUS, -1, -1);
return;
}
/* It's a logical device */
if (is_ext_target(h, device)) {
/* external target way, put logicals on bus 1
* and match target/lun numbers box
* reports, other smart array, bus 0, target 0, match lunid
*/
hpsa_set_bus_target_lun(device,
1, (lunid >> 16) & 0x3fff, lunid & 0x00ff);
HPSA_EXTERNAL_RAID_VOLUME_BUS, (lunid >> 16) & 0x3fff,
lunid & 0x00ff);
return;
}
hpsa_set_bus_target_lun(device, 0, 0, lunid & 0x3fff);
hpsa_set_bus_target_lun(device, HPSA_RAID_VOLUME_BUS,
0, lunid & 0x3fff);
}
/*

5
drivers/scsi/hpsa.h
View File

@ -367,6 +367,11 @@ struct offline_device_entry {
#define IOACCEL2_INBOUND_POSTQ_64_LOW 0xd0
#define IOACCEL2_INBOUND_POSTQ_64_HI 0xd4
#define HPSA_PHYSICAL_DEVICE_BUS 0
#define HPSA_RAID_VOLUME_BUS 1
#define HPSA_EXTERNAL_RAID_VOLUME_BUS 2
#define HPSA_HBA_BUS 3
/*
Send the command to the hardware
*/