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net/mlx5: add Ethernet header to GENEVE RSS expansion

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RFC-8926 allows inner Ethernet header after GENEVE tunnel.

Current GENEVE RSS expansion created IPv4 and IPv6 paths only.

The patch adds Ethernet to RSS expansion scheme.

Cc: stable@dpdk.org

Signed-off-by: Gregory Etelson <getelson@nvidia.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
This commit is contained in:
Gregory Etelson 2021-11-14 17:36:13 +02:00 committed by Raslan Darawsheh
parent 861fa3796f
commit 9f151fd8df
1 changed files with 33 additions and 1 deletions
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34
drivers/net/mlx5/mlx5_flow.c
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@ -258,6 +258,29 @@ mlx5_flow_expand_rss_item_complete(const struct rte_flow_item *item)
else
ret = RTE_FLOW_ITEM_TYPE_END;
break;
case RTE_FLOW_ITEM_TYPE_GENEVE:
ether_type_m = item->mask ?
((const struct rte_flow_item_geneve *)
(item->mask))->protocol :
rte_flow_item_geneve_mask.protocol;
ether_type = ((const struct rte_flow_item_geneve *)
(item->spec))->protocol;
ether_type_m = rte_be_to_cpu_16(ether_type_m);
ether_type = rte_be_to_cpu_16(ether_type);
switch (ether_type_m & ether_type) {
case RTE_ETHER_TYPE_TEB:
ret = RTE_FLOW_ITEM_TYPE_ETH;
break;
case RTE_ETHER_TYPE_IPV4:
ret = RTE_FLOW_ITEM_TYPE_IPV4;
break;
case RTE_ETHER_TYPE_IPV6:
ret = RTE_FLOW_ITEM_TYPE_IPV6;
break;
default:
ret = RTE_FLOW_ITEM_TYPE_END;
}
break;
default:
ret = RTE_FLOW_ITEM_TYPE_VOID;
break;
@ -530,7 +553,8 @@ enum mlx5_expansion {
MLX5_EXPANSION_IPV6_UDP,
MLX5_EXPANSION_IPV6_TCP,
MLX5_EXPANSION_IPV6_FRAG_EXT,
MLX5_EXPANSION_GTP
MLX5_EXPANSION_GTP,
MLX5_EXPANSION_GENEVE,
};
/** Supported expansion of items. */
@ -574,6 +598,7 @@ static const struct mlx5_flow_expand_node mlx5_support_expansion[] = {
.next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_VXLAN,
MLX5_EXPANSION_VXLAN_GPE,
MLX5_EXPANSION_MPLS,
MLX5_EXPANSION_GENEVE,
MLX5_EXPANSION_GTP),
.type = RTE_FLOW_ITEM_TYPE_UDP,
.rss_types = RTE_ETH_RSS_NONFRAG_IPV4_UDP,
@ -598,6 +623,7 @@ static const struct mlx5_flow_expand_node mlx5_support_expansion[] = {
.next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_VXLAN,
MLX5_EXPANSION_VXLAN_GPE,
MLX5_EXPANSION_MPLS,
MLX5_EXPANSION_GENEVE,
MLX5_EXPANSION_GTP),
.type = RTE_FLOW_ITEM_TYPE_UDP,
.rss_types = RTE_ETH_RSS_NONFRAG_IPV6_UDP,
@ -701,6 +727,12 @@ static const struct mlx5_flow_expand_node mlx5_support_expansion[] = {
MLX5_EXPANSION_IPV6),
.type = RTE_FLOW_ITEM_TYPE_GTP,
},
[MLX5_EXPANSION_GENEVE] = {
.next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH,
MLX5_EXPANSION_IPV4,
MLX5_EXPANSION_IPV6),
.type = RTE_FLOW_ITEM_TYPE_GENEVE,
},
};
static struct rte_flow_action_handle *