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authorLalit Chandivade <lalit.chandivade@qlogic.com>2009-03-26 08:49:17 -0700
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2009-04-03 09:22:49 -0500
commit6e181be508cf81fda4407b4689befeb7e4149607 (patch)
tree27765812d249113374e9fdf9267f3043811fcb2e /drivers/scsi/qla2xxx
parent2533cf671da0603129c8af9c31c735e1d2654e20 (diff)
[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>
Diffstat (limited to 'drivers/scsi/qla2xxx')
-rw-r--r--drivers/scsi/qla2xxx/qla_attr.c56
-rw-r--r--drivers/scsi/qla2xxx/qla_fw.h1
-rw-r--r--drivers/scsi/qla2xxx/qla_gbl.h1
-rw-r--r--drivers/scsi/qla2xxx/qla_mbx.c26
4 files changed, 84 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index 117517dcbe4..1f1a7c0e88e 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -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 },
};
diff --git a/drivers/scsi/qla2xxx/qla_fw.h b/drivers/scsi/qla2xxx/qla_fw.h
index 98301931772..e47c4c3602d 100644
--- a/drivers/scsi/qla2xxx/qla_fw.h
+++ b/drivers/scsi/qla2xxx/qla_fw.h
@@ -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 */
diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h
index c75e7f98c24..41c3f41e686 100644
--- a/drivers/scsi/qla2xxx/qla_gbl.h
+++ b/drivers/scsi/qla2xxx/qla_gbl.h
@@ -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 *,
diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index 2bc08d3b353..dc5e5d9530c 100644
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -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;
+}