1 files changed, 9 insertions, 3 deletions

diff --git a/drivers/net/xen-netback/xenbus.c b/drivers/net/xen-netback/xenbus.c
index d44cd19169bd..efbaf2ae1999 100644
--- a/drivers/net/xen-netback/xenbus.c
+++ b/drivers/net/xen-netback/xenbus.c
@@ -887,9 +887,15 @@ static int read_xenbus_vif_flags(struct backend_info *be)
                 return -EOPNOTSUPP;
 
         if (xenbus_scanf(XBT_NIL, dev->otherend,
-                         "feature-rx-notify", "%d", &val) < 0 || val == 0) {
-                xenbus_dev_fatal(dev, -EINVAL, "feature-rx-notify is mandatory");
-                return -EINVAL;
+                         "feature-rx-notify", "%d", &val) < 0)
+                val = 0;
+        if (!val) {
+                /* - Reduce drain timeout to poll more frequently for
+                 *   Rx requests.
+                 * - Disable Rx stall detection.
+                 */
+                be->vif->drain_timeout = msecs_to_jiffies(30);
+                be->vif->stall_timeout = 0;
         }
 
         if (xenbus_scanf(XBT_NIL, dev->otherend, "feature-sg",