[dpdk-dev] [PATCH 08/17] mlx5: use alternate method to configure promiscuous mode
Adrien Mazarguil
adrien.mazarguil at 6wind.com
Mon Oct 5 19:54:43 CEST 2015
From: Olga Shern <olgas at mellanox.com>
Promiscuous mode was historically enabled by adding a specific flow with
type IBV_FLOW_ATTR_ALL_DEFAULT to each hash RX queue, but this method is
deprecated. It is now simply enabled by omitting destination MAC addresses
from basic flow specifications.
Signed-off-by: Olga Shern <olgas at mellanox.com>
Signed-off-by: Adrien Mazarguil <adrien.mazarguil at 6wind.com>
Signed-off-by: Nelio Laranjeiro <nelio.laranjeiro at 6wind.com>
---
drivers/net/mlx5/mlx5_rxmode.c | 15 ++++++++-------
1 file changed, 8 insertions(+), 7 deletions(-)
diff --git a/drivers/net/mlx5/mlx5_rxmode.c b/drivers/net/mlx5/mlx5_rxmode.c
index 7fe7f0e..aab38ee 100644
--- a/drivers/net/mlx5/mlx5_rxmode.c
+++ b/drivers/net/mlx5/mlx5_rxmode.c
@@ -74,20 +74,21 @@ static int
hash_rxq_promiscuous_enable(struct hash_rxq *hash_rxq)
{
struct ibv_flow *flow;
- struct ibv_flow_attr attr = {
- .type = IBV_FLOW_ATTR_ALL_DEFAULT,
- .num_of_specs = 0,
- .port = hash_rxq->priv->port,
- .flags = 0
- };
+ struct priv *priv = hash_rxq->priv;
+ FLOW_ATTR_SPEC_ETH(data, priv_populate_flow_attr(priv, NULL, 0,
+ hash_rxq->type));
+ struct ibv_flow_attr *attr = &data->attr;
if (hash_rxq->priv->vf)
return 0;
DEBUG("%p: enabling promiscuous mode", (void *)hash_rxq);
if (hash_rxq->promisc_flow != NULL)
return EBUSY;
+ /* Promiscuous flows only differ from normal flows by not filtering
+ * on specific MAC addresses. */
+ priv_populate_flow_attr(priv, attr, sizeof(data), hash_rxq->type);
errno = 0;
- flow = ibv_create_flow(hash_rxq->qp, &attr);
+ flow = ibv_create_flow(hash_rxq->qp, attr);
if (flow == NULL) {
/* It's not clear whether errno is always set in this case. */
ERROR("%p: flow configuration failed, errno=%d: %s",
--
2.1.0
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