[dpdk-dev] [PATCH] net/mlx4: support flow w/o ETH spec and with VLAN

[Dekel Peled]

This patch adds to MLX4 PMD the option to set flow rules
with wildcard ether MAC and specific VLAN ID.

Note that this fix works with
1. CX-3 FW 2.42.5016 or higher.
2. mlxconfig configuration STEER_FORCE_VLAN set to 1.

Signed-off-by: Dekel Peled <dek...@mellanox.com>
---
 drivers/net/mlx4/mlx4_flow.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/net/mlx4/mlx4_flow.c b/drivers/net/mlx4/mlx4_flow.c
index b40e7e5..6c927a6 100644
--- a/drivers/net/mlx4/mlx4_flow.c
+++ b/drivers/net/mlx4/mlx4_flow.c
@@ -205,9 +205,7 @@ struct mlx4_drop {
        const char *msg;
        unsigned int i;
 
-       if (!mask) {
-               flow->promisc = 1;
-       } else {
+       if (mask) {
                uint32_t sum_dst = 0;
                uint32_t sum_src = 0;
 
@@ -249,6 +247,10 @@ struct mlx4_drop {
                .type = IBV_FLOW_SPEC_ETH,
                .size = sizeof(*eth),
        };
+       if (!mask) {
+               flow->ibv_attr->type = IBV_FLOW_ATTR_ALL_DEFAULT;
+               return 0;
+       }
        memcpy(eth->val.dst_mac, spec->dst.addr_bytes, ETHER_ADDR_LEN);
        memcpy(eth->mask.dst_mac, mask->dst.addr_bytes, ETHER_ADDR_LEN);
        /* Remove unwanted bits from values. */
@@ -311,6 +313,8 @@ struct mlx4_drop {
        eth->val.vlan_tag = spec->tci;
        eth->mask.vlan_tag = mask->tci;
        eth->val.vlan_tag &= eth->mask.vlan_tag;
+       if (flow->ibv_attr->type == IBV_FLOW_ATTR_ALL_DEFAULT)
+               flow->ibv_attr->type = IBV_FLOW_ATTR_NORMAL;
        return 0;
 error:
        return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM,
-- 
1.8.3.1