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[SCSI] qla2xxx: Add reset capabilities for application support. 

Signed-off-by: Lalit Chandivade <lalit.chandivade@qlogic.com>
Additional cleanups and
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
Lalit Chandivade 2009-03-26 08:49:17 -07:00 committed by James Bottomley
parent 2533cf671d
commit 6e181be508
4 changed files with 84 additions and 0 deletions
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56
drivers/scsi/qla2xxx/qla_attr.c
View File

@ -479,6 +479,61 @@ static struct bin_attribute sysfs_sfp_attr = {
.read = qla2x00_sysfs_read_sfp,
};
static ssize_t
qla2x00_sysfs_write_reset(struct kobject *kobj,
struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj,
struct device, kobj)));
struct qla_hw_data *ha = vha->hw;
int type;
if (off != 0)
return 0;
type = simple_strtol(buf, NULL, 10);
switch (type) {
case 0x2025c:
qla_printk(KERN_INFO, ha,
"Issuing ISP reset on (%ld).\n", vha->host_no);
scsi_block_requests(vha->host);
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
qla2x00_wait_for_chip_reset(vha);
scsi_unblock_requests(vha->host);
break;
case 0x2025d:
if (!IS_QLA81XX(ha))
break;
qla_printk(KERN_INFO, ha,
"Issuing MPI reset on (%ld).\n", vha->host_no);
/* Make sure FC side is not in reset */
qla2x00_wait_for_hba_online(vha);
/* Issue MPI reset */
scsi_block_requests(vha->host);
if (qla81xx_restart_mpi_firmware(vha) != QLA_SUCCESS)
qla_printk(KERN_WARNING, ha,
"MPI reset failed on (%ld).\n", vha->host_no);
scsi_unblock_requests(vha->host);
break;
}
return count;
}
static struct bin_attribute sysfs_reset_attr = {
.attr = {
.name = "reset",
.mode = S_IWUSR,
},
.size = 0,
.write = qla2x00_sysfs_write_reset,
};
static struct sysfs_entry {
char *name;
struct bin_attribute *attr;
@ -490,6 +545,7 @@ static struct sysfs_entry {
{ "optrom_ctl", &sysfs_optrom_ctl_attr, },
{ "vpd", &sysfs_vpd_attr, 1 },
{ "sfp", &sysfs_sfp_attr, 1 },
{ "reset", &sysfs_reset_attr, },
{ NULL },
};

1
drivers/scsi/qla2xxx/qla_fw.h
View File

@ -1403,6 +1403,7 @@ struct access_chip_rsp_84xx {
#define MBA_IDC_TIME_EXT 0x8102
#define MBC_IDC_ACK 0x101
#define MBC_RESTART_MPI_FW 0x3d
#define MBC_FLASH_ACCESS_CTRL 0x3e /* Control flash access. */
/* Flash access control option field bit definitions */

1
drivers/scsi/qla2xxx/qla_gbl.h
View File

@ -73,6 +73,7 @@ extern void qla2x00_abort_all_cmds(scsi_qla_host_t *, int);
extern int qla2x00_post_aen_work(struct scsi_qla_host *, enum
fc_host_event_code, u32);
extern int qla2x00_post_idc_ack_work(struct scsi_qla_host *, uint16_t *);
extern int qla81xx_restart_mpi_firmware(scsi_qla_host_t *);
extern void qla2x00_abort_fcport_cmds(fc_port_t *);
extern struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *,

26
drivers/scsi/qla2xxx/qla_mbx.c
View File

@ -3325,3 +3325,29 @@ qla81xx_fac_erase_sector(scsi_qla_host_t *vha, uint32_t start, uint32_t finish)
return rval;
}
int
qla81xx_restart_mpi_firmware(scsi_qla_host_t *vha)
{
int rval = 0;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
DEBUG11(printk("%s(%ld): entered.\n", __func__, vha->host_no));
mcp->mb[0] = MBC_RESTART_MPI_FW;
mcp->out_mb = MBX_0;
mcp->in_mb = MBX_0|MBX_1;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
DEBUG2_3_11(printk("%s(%ld): failed=%x mb[0]=0x%x mb[1]=0x%x.\n",
__func__, vha->host_no, rval, mcp->mb[0], mcp->mb[1]));
} else {
DEBUG11(printk("%s(%ld): done.\n", __func__, vha->host_no));
}
return rval;
}