net/failsafe: fix source port id in Rx packets

[dpdk.git] / drivers / net / failsafe / failsafe_rxtx.c

diff --git a/drivers/net/failsafe/failsafe_rxtx.c b/drivers/net/failsafe/failsafe_rxtx.c
index 231c832..fee08fa 100644 (file)
--- a/drivers/net/failsafe/failsafe_rxtx.c
+++ b/drivers/net/failsafe/failsafe_rxtx.c
@@ -61,6 +61,21 @@ failsafe_set_burst_fn(struct rte_eth_dev *dev, int force_safe)
        rte_wmb();
 }
 
+/*
+ * Override source port in Rx packets.
+ *
+ * Make Rx packets originate from this PMD instance instead of one of its
+ * sub-devices. This is mandatory to avoid breaking applications.
+ */
+static void
+failsafe_rx_set_port(struct rte_mbuf **rx_pkts, uint16_t nb_pkts, uint16_t port)
+{
+       unsigned int i;
+
+       for (i = 0; i != nb_pkts; ++i)
+               rx_pkts[i]->port = port;
+}
+
 uint16_t
 failsafe_rx_burst(void *queue,
                  struct rte_mbuf **rx_pkts,
@@ -87,6 +102,9 @@ failsafe_rx_burst(void *queue,
                sdev = sdev->next;
        } while (nb_rx == 0 && sdev != rxq->sdev);
        rxq->sdev = sdev;
+       if (nb_rx)
+               failsafe_rx_set_port(rx_pkts, nb_rx,
+                                    rxq->priv->data->port_id);
        return nb_rx;
 }
 
@@ -112,6 +130,9 @@ failsafe_rx_burst_fast(void *queue,
                sdev = sdev->next;
        } while (nb_rx == 0 && sdev != rxq->sdev);
        rxq->sdev = sdev;
+       if (nb_rx)
+               failsafe_rx_set_port(rx_pkts, nb_rx,
+                                    rxq->priv->data->port_id);
        return nb_rx;
 }