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From 643958cf910f9d2b6a22307a331834a93722884d Mon Sep 17 00:00:00 2001
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From: Moti Haimovsky <motih@mellanox.com>
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Date: Sun, 28 Jan 2018 11:43:37 +0200
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Subject: [PATCH] net/mlx4: fix broadcast Rx
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This patch fixes the issue of mlx4 not receiving broadcast packets
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when configured to work promiscuous or allmulticast modes.
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Fixes: eacaac7bae36 ("net/mlx4: restore promisc and allmulti support")
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Cc: stable@dpdk.org
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Signed-off-by: Moti Haimovsky <motih@mellanox.com>
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Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
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---
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drivers/net/mlx4/mlx4_flow.c | 16 ++++++++--------
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1 file changed, 8 insertions(+), 8 deletions(-)
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diff --git a/drivers/net/mlx4/mlx4_flow.c b/drivers/net/mlx4/mlx4_flow.c
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index fb84060db..2c6710505 100644
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--- a/drivers/net/mlx4/mlx4_flow.c
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+++ b/drivers/net/mlx4/mlx4_flow.c
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@@ -1223,9 +1223,12 @@ mlx4_flow_internal_next_vlan(struct priv *priv, uint16_t vlan)
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*
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* Various flow rules are created depending on the mode the device is in:
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*
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- * 1. Promiscuous: port MAC + catch-all (VLAN filtering is ignored).
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- * 2. All multicast: port MAC/VLAN + catch-all multicast.
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- * 3. Otherwise: port MAC/VLAN + broadcast MAC/VLAN.
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+ * 1. Promiscuous:
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+ * port MAC + broadcast + catch-all (VLAN filtering is ignored).
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+ * 2. All multicast:
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+ * port MAC/VLAN + broadcast + catch-all multicast.
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+ * 3. Otherwise:
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+ * port MAC/VLAN + broadcast MAC/VLAN.
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*
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* About MAC flow rules:
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*
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@@ -1305,9 +1308,6 @@ mlx4_flow_internal(struct priv *priv, struct rte_flow_error *error)
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!priv->dev->data->promiscuous ?
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&vlan_spec.tci :
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NULL;
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- int broadcast =
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- !priv->dev->data->promiscuous &&
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- !priv->dev->data->all_multicast;
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uint16_t vlan = 0;
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struct rte_flow *flow;
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unsigned int i;
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@@ -1341,7 +1341,7 @@ mlx4_flow_internal(struct priv *priv, struct rte_flow_error *error)
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rule_vlan = NULL;
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}
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}
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- for (i = 0; i != RTE_DIM(priv->mac) + broadcast; ++i) {
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+ for (i = 0; i != RTE_DIM(priv->mac) + 1; ++i) {
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const struct ether_addr *mac;
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/* Broadcasts are handled by an extra iteration. */
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@@ -1405,7 +1405,7 @@ mlx4_flow_internal(struct priv *priv, struct rte_flow_error *error)
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goto next_vlan;
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}
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/* Take care of promiscuous and all multicast flow rules. */
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- if (!broadcast) {
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+ if (priv->dev->data->promiscuous || priv->dev->data->all_multicast) {
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for (flow = LIST_FIRST(&priv->flows);
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flow && flow->internal;
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flow = LIST_NEXT(flow, next)) {
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--
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2.17.0
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