[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>
diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index 117517d..1f1a7c0 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -479,6 +479,61 @@
.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 @@
{ "optrom_ctl", &sysfs_optrom_ctl_attr, },
{ "vpd", &sysfs_vpd_attr, 1 },
{ "sfp", &sysfs_sfp_attr, 1 },
+ { "reset", &sysfs_reset_attr, },
{ NULL },
};