Commit 7630b3a5 authored by Hannes Reinecke's avatar Hannes Reinecke Committed by Martin K. Petersen
Browse files

scsi: hpsa: use bus '3' for legacy HBA devices 



Older controllers use SCSI target id '0' for the first internal disk. As
the controllers are now placed on the same bus as the internal disks
this leads to a clash with the SCSI target id of controller.  This patch
checks the SCSI revision, and moves older controller to bus '3' to be
compatible with older releases and avoid this problem.

[mkp: fixed uninitialized variable]

Fixes: 09371d62 ("hpsa: Change SAS transport devices to bus 0.")
Cc: <stable@vger.kernel.org> # v4.5+
Signed-off-by: default avatarHannes Reinecke <hare@suse.com>
Acked-by: default avatarDon Brace <don.brace@microsemi.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 208da78e

drivers/scsi/hpsa.c

+11 −5
Original line number Diff line number Diff line
@@ -2009,7 +2009,7 @@ static struct hpsa_scsi_dev_t *lookup_hpsa_scsi_dev(struct ctlr_info *h, 


static int hpsa_slave_alloc(struct scsi_device *sdev)

{

	struct hpsa_scsi_dev_t *sd;

	struct hpsa_scsi_dev_t *sd = NULL;

	unsigned long flags;

	struct ctlr_info *h;
@@ -2026,7 +2026,8 @@ static int hpsa_slave_alloc(struct scsi_device *sdev) 
			sd->target = sdev_id(sdev);

			sd->lun = sdev->lun;

		}

	} else

	}

	if (!sd)

		sd = lookup_hpsa_scsi_dev(h, sdev_channel(sdev),

					sdev_id(sdev), sdev->lun);
@@ -3840,6 +3841,7 @@ static int hpsa_update_device_info(struct ctlr_info *h, 
		sizeof(this_device->vendor));

	memcpy(this_device->model, &inq_buff[16],

		sizeof(this_device->model));

	this_device->rev = inq_buff[2];

	memset(this_device->device_id, 0,

		sizeof(this_device->device_id));

	if (hpsa_get_device_id(h, scsi3addr, this_device->device_id, 8,
@@ -3929,10 +3931,14 @@ static void figure_bus_target_lun(struct ctlr_info *h, 


	if (!is_logical_dev_addr_mode(lunaddrbytes)) {

		/* physical device, target and lun filled in later */

		if (is_hba_lunid(lunaddrbytes))

		if (is_hba_lunid(lunaddrbytes)) {

			int bus = HPSA_HBA_BUS;



			if (!device->rev)

				bus = HPSA_LEGACY_HBA_BUS;

			hpsa_set_bus_target_lun(device,

					HPSA_HBA_BUS, 0, lunid & 0x3fff);

		else

					bus, 0, lunid & 0x3fff);

		} else

			/* defer target, lun assignment for physical devices */

			hpsa_set_bus_target_lun(device,

					HPSA_PHYSICAL_DEVICE_BUS, -1, -1);

drivers/scsi/hpsa.h

+2 −0
Original line number Diff line number Diff line
@@ -69,6 +69,7 @@ struct hpsa_scsi_dev_t { 
	u64 sas_address;

	unsigned char vendor[8];        /* bytes 8-15 of inquiry data */

	unsigned char model[16];        /* bytes 16-31 of inquiry data */

	unsigned char rev;		/* byte 2 of inquiry data */

	unsigned char raid_level;	/* from inquiry page 0xC1 */

	unsigned char volume_offline;	/* discovered via TUR or VPD */

	u16 queue_depth;		/* max queue_depth for this device */
@@ -402,6 +403,7 @@ struct offline_device_entry { 
#define HPSA_RAID_VOLUME_BUS		1

#define HPSA_EXTERNAL_RAID_VOLUME_BUS	2

#define HPSA_HBA_BUS			0

#define HPSA_LEGACY_HBA_BUS		3



/*

	Send the command to the hardware

CRA Git | Maintained and supported by SUSTech CRA and CCSE