netdev-offload-dpdk: Fix for broken ethernet matching HWOL for XL710NIC.

This patch introduces a temporary work around to fix
partial hardware offload for XL710 devices. Currently the incorrect
ethernet pattern is being set. This patch will be removed once
this issue is fixed within the i40e PMD.

Signed-off-by: Emma Finn <emma.finn@intel.com>
Signed-off-by: Eli Britstein <elibr@nvidia.com>
Co-authored-by: Eli Britstein <elibr@nvidia.com>
Tested-by: Ian Stokes <ian.stokes@intel.com>
Signed-off-by: Ilya Maximets <i.maximets@ovn.org>

1 files changed, 12 insertions, 3 deletions

diff --git a/lib/netdev-dpdk.c b/lib/netdev-dpdk.c
index 9a91ddb5e..5a106e732 100644
--- a/lib/netdev-dpdk.c
+++ b/lib/netdev-dpdk.c
@@ -4417,9 +4417,18 @@ netdev_dpdk_add_rte_flow_offload(struct netdev *netdev,
     struct rte_flow_item_eth eth_mask;
     memset(&eth_spec, 0, sizeof(eth_spec));
     memset(&eth_mask, 0, sizeof(eth_mask));
-    if (match->wc.masks.dl_type ||
-        !eth_addr_is_zero(match->wc.masks.dl_src) ||
-        !eth_addr_is_zero(match->wc.masks.dl_dst)) {
+    if (match->wc.masks.dl_type == OVS_BE16_MAX && is_ip_any(&match->flow)
+        && eth_addr_is_zero(match->wc.masks.dl_dst)
+        && eth_addr_is_zero(match->wc.masks.dl_src)) {
+        /*
+         * This is a temporary work around to fix ethernet pattern for partial
+         * hardware offload for X710 devices. This fix will be reverted once
+         * the issue is fixed within the i40e PMD driver.
+         */
+        add_flow_pattern(&patterns, RTE_FLOW_ITEM_TYPE_ETH, NULL, NULL);
+    } else if (match->wc.masks.dl_type ||
+               !eth_addr_is_zero(match->wc.masks.dl_src) ||
+               !eth_addr_is_zero(match->wc.masks.dl_dst)) {
         rte_memcpy(&eth_spec.dst, &match->flow.dl_dst, sizeof(eth_spec.dst));
         rte_memcpy(&eth_spec.src, &match->flow.dl_src, sizeof(eth_spec.src));
         eth_spec.type = match->flow.dl_type;