When an ETH or VLAN flow item directly preceding ECPRI (i. e. a pattern
for eCPRI over Ethernet) did not specify the eCPRI protocol, matches
were not restricted to eCPRI traffic. For example, "eth / ecpri / end"
pattern behaved as "eth / end". Implicitly add Ethernet type condition,
so that "eth / ecpri / end" behaves as "eth type is 0xAEFE / end".
Fixes: daa38a8924a0 ("net/mlx5: add flow translation of eCPRI header")
Cc: bingz@nvidia.com
Cc: stable@dpdk.org
Signed-off-by: Dmitry Kozlyuk <dkozlyuk@nvidia.com>
---
drivers/net/mlx5/mlx5_flow_dv.c | 26 ++++++++++++++++++++++----
1 file changed, 22 insertions(+), 4 deletions(-)
diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c
index 31d857030f..5bb6d89a3f 100644
--- a/drivers/net/mlx5/mlx5_flow_dv.c
+++ b/drivers/net/mlx5/mlx5_flow_dv.c
@@ -9976,12 +9976,13 @@ flow_dv_translate_item_gtp_psc(void *matcher, void *key,
* Flow matcher value.
* @param[in] item
* Flow pattern to translate.
- * @param[in] samples
- * Sample IDs to be used in the matching.
+ * @param[in] last_item
+ * Last item flags.
*/
static void
flow_dv_translate_item_ecpri(struct rte_eth_dev *dev, void *matcher,
- void *key, const struct rte_flow_item *item)
+ void *key, const struct rte_flow_item *item,
+ uint64_t last_item)
{
struct mlx5_priv *priv = dev->data->dev_private;
const struct rte_flow_item_ecpri *ecpri_m = item->mask;
@@ -9994,6 +9995,22 @@ flow_dv_translate_item_ecpri(struct rte_eth_dev *dev, void *matcher,
void *dw_m;
void *dw_v;
+ /*
+ * In case of eCPRI over Ethernet, if EtherType is not specified,
+ * match on eCPRI EtherType implicitly.
+ */
+ if (last_item & MLX5_FLOW_LAYER_OUTER_L2) {
+ void *hdrs_m, *hdrs_v, *l2m, *l2v;
+
+ hdrs_m = MLX5_ADDR_OF(fte_match_param, matcher, outer_headers);
+ hdrs_v = MLX5_ADDR_OF(fte_match_param, key, outer_headers);
+ l2m = MLX5_ADDR_OF(fte_match_set_lyr_2_4, hdrs_m, ethertype);
+ l2v = MLX5_ADDR_OF(fte_match_set_lyr_2_4, hdrs_v, ethertype);
+ if (*(uint16_t *)l2m == 0 && *(uint16_t *)l2v == 0) {
+ *(uint16_t *)l2m = UINT16_MAX;
+ *(uint16_t *)l2v = RTE_BE16(RTE_ETHER_TYPE_ECPRI);
+ }
+ }
if (!ecpri_v)
return;
if (!ecpri_m)
@@ -13474,7 +13491,8 @@ flow_dv_translate(struct rte_eth_dev *dev,
"cannot create eCPRI parser");
}
flow_dv_translate_item_ecpri(dev, match_mask,
- match_value, items);
+ match_value, items,
+ last_item);
/* No other protocol should follow eCPRI layer. */
last_item = MLX5_FLOW_LAYER_ECPRI;
break;
--
2.25.1