scsi: qedi: Add ep_state for login completion on un-reachable targets

When the driver finds invalid destination MAC for the first un-reachable
target, and before completes the PATH_REQ operation, set new ep_state to
OFFLDCONN_NONE so that as part of driver ep_poll mechanism, the upper
open-iscsi layer is notified to complete the login process on the first
un-reachable target and thus proceed login to other reachable targets.

Signed-off-by: Manish Rangankar <mrangankar@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/qedi/qedi_iscsi.c b/drivers/scsi/qedi/qedi_iscsi.c
index 4da660c..6d6d601 100644 (file)
--- a/drivers/scsi/qedi/qedi_iscsi.c
+++ b/drivers/scsi/qedi/qedi_iscsi.c
@@ -953,6 +953,7 @@ static int qedi_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
 
        qedi_ep = ep->dd_data;
        if (qedi_ep->state == EP_STATE_IDLE ||
+           qedi_ep->state == EP_STATE_OFLDCONN_NONE ||
            qedi_ep->state == EP_STATE_OFLDCONN_FAILED)
                return -1;
 
@@ -1035,6 +1036,7 @@ static void qedi_ep_disconnect(struct iscsi_endpoint *ep)
 
        switch (qedi_ep->state) {
        case EP_STATE_OFLDCONN_START:
+       case EP_STATE_OFLDCONN_NONE:
                goto ep_release_conn;
        case EP_STATE_OFLDCONN_FAILED:
                        break;
@@ -1225,6 +1227,7 @@ static int qedi_set_path(struct Scsi_Host *shost, struct iscsi_path *path_data)
 
        if (!is_valid_ether_addr(&path_data->mac_addr[0])) {
                QEDI_NOTICE(&qedi->dbg_ctx, "dst mac NOT VALID\n");
+               qedi_ep->state = EP_STATE_OFLDCONN_NONE;
                ret = -EIO;
                goto set_path_exit;
        }

diff --git a/drivers/scsi/qedi/qedi_iscsi.h b/drivers/scsi/qedi/qedi_iscsi.h
index 1126077..892d70d 100644 (file)
--- a/drivers/scsi/qedi/qedi_iscsi.h
+++ b/drivers/scsi/qedi/qedi_iscsi.h
@@ -59,6 +59,7 @@ enum {
        EP_STATE_OFLDCONN_FAILED        = 0x2000,
        EP_STATE_CONNECT_FAILED         = 0x4000,
        EP_STATE_DISCONN_TIMEDOUT       = 0x8000,
+       EP_STATE_OFLDCONN_NONE          = 0x10000,
 };
 
 struct qedi_conn;