[SCSI] scsi_transport_iscsi: Add support to set CHAP entries
For offload iSCSI like qla4xxx, CHAP entries are stored in adapter's
flash.
This patch adds support to add/update CHAP entries in adapter's flash
using iscsi tools, like Open-iSCSI.
Signed-off-by: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index e4a989f..63a6ca4 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -2744,6 +2744,28 @@
return err;
}
+static int iscsi_set_chap(struct iscsi_transport *transport,
+ struct iscsi_uevent *ev, uint32_t len)
+{
+ char *data = (char *)ev + sizeof(*ev);
+ struct Scsi_Host *shost;
+ int err = 0;
+
+ if (!transport->set_chap)
+ return -ENOSYS;
+
+ shost = scsi_host_lookup(ev->u.set_path.host_no);
+ if (!shost) {
+ pr_err("%s could not find host no %u\n",
+ __func__, ev->u.set_path.host_no);
+ return -ENODEV;
+ }
+
+ err = transport->set_chap(shost, data, len);
+ scsi_host_put(shost);
+ return err;
+}
+
static int iscsi_delete_chap(struct iscsi_transport *transport,
struct iscsi_uevent *ev)
{
@@ -3234,6 +3256,10 @@
case ISCSI_UEVENT_LOGOUT_FLASHNODE_SID:
err = iscsi_logout_flashnode_sid(transport, ev);
break;
+ case ISCSI_UEVENT_SET_CHAP:
+ err = iscsi_set_chap(transport, ev,
+ nlmsg_attrlen(nlh, sizeof(*ev)));
+ break;
default:
err = -ENOSYS;
break;