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qla2xxx: Disable laser for ISP2031 while unloading driver.

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Nameserver data on FC switch is not refreshed when
qla2xxx driver is unloaded. Disabling laser for
ISP2031 will force FC switch to rescan ports and
clear fdmi entries from Nameserver.

Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Himanshu Madhani 2014-09-25 05:16:55 -04:00 committed by Christoph Hellwig
parent 25232cc9b8
commit 2d5a4c344a
3 changed files with 37 additions and 1 deletions
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2
drivers/scsi/qla2xxx/qla_dbg.c
View File

@ -11,7 +11,7 @@
* ----------------------------------------------------------------------
* | Level | Last Value Used | Holes |
* ----------------------------------------------------------------------
* | Module Init and Probe | 0x017d | 0x004b,0x0141 |
* | Module Init and Probe | 0x017d | 0x0141 |
* | | | 0x0144,0x0146 |
* | | | 0x015b-0x0160 |
* | | | 0x016e-0x0170 |

5
drivers/scsi/qla2xxx/qla_def.h
View File

@ -191,6 +191,11 @@
* reset-recovery completion is
* second
*/
/* ISP2031: Values for laser on/off */
#define PORT_0_2031 0x00201340
#define PORT_1_2031 0x00201350
#define LASER_ON_2031 0x01800100
#define LASER_OFF_2031 0x01800180
/*
* The ISP2312 v2 chip cannot access the FLASH/GPIO registers via MMIO in an

31
drivers/scsi/qla2xxx/qla_os.c
View File

@ -240,6 +240,7 @@ static int qla2x00_change_queue_depth(struct scsi_device *, int, int);
static int qla2x00_change_queue_type(struct scsi_device *, int);
static void qla2x00_clear_drv_active(struct qla_hw_data *);
static void qla2x00_free_device(scsi_qla_host_t *);
static void qla83xx_disable_laser(scsi_qla_host_t *vha);
struct scsi_host_template qla2xxx_driver_template = {
.module = THIS_MODULE,
@ -3177,6 +3178,10 @@ qla2x00_remove_one(struct pci_dev *pdev)
qla84xx_put_chip(base_vha);
/* Laser should be disabled only for ISP2031 */
if (IS_QLA2031(ha))
qla83xx_disable_laser(base_vha);
/* Disable timer */
if (base_vha->timer_active)
qla2x00_stop_timer(base_vha);
@ -5701,6 +5706,32 @@ qla2xxx_pci_resume(struct pci_dev *pdev)
ha->flags.eeh_busy = 0;
}
static void
qla83xx_disable_laser(scsi_qla_host_t *vha)
{
uint32_t reg, data, fn;
struct qla_hw_data *ha = vha->hw;
struct device_reg_24xx __iomem *isp_reg = &ha->iobase->isp24;
/* pci func #/port # */
ql_dbg(ql_dbg_init, vha, 0x004b,
"Disabling Laser for hba: %p\n", vha);
fn = (RD_REG_DWORD(&isp_reg->ctrl_status) &
(BIT_15|BIT_14|BIT_13|BIT_12));
fn = (fn >> 12);
if (fn & 1)
reg = PORT_1_2031;
else
reg = PORT_0_2031;
data = LASER_OFF_2031;
qla83xx_wr_reg(vha, reg, data);
}
static const struct pci_error_handlers qla2xxx_err_handler = {
.error_detected = qla2xxx_pci_error_detected,
.mmio_enabled = qla2xxx_pci_mmio_enabled,