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net/mlx5: support match on IPv6 fragment packets

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This patch adds to MLX5 PMD the support of matching on IPv6
fragmented and non-fragmented packets, using the new field
has_frag_ext, added to rte_flow following RFC [1].

[1] https://mails.dpdk.org/archives/dev/2020-August/177257.html

Signed-off-by: Dekel Peled <dekelp@nvidia.com>
Acked-by: Ori Kam <orika@nvidia.com>
This commit is contained in:
Dekel Peled 2020-10-15 17:05:55 +03:00 committed by Ferruh Yigit
parent 6859e67ef6
commit ad3d227ead
2 changed files with 6 additions and 1 deletions
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2
doc/guides/rel_notes/release_20_11.rst
View File

@ -173,7 +173,7 @@ New Features
Updated Mellanox mlx5 driver with new features and improvements, including:
* Added support for matching on fragmented/non-fragmented IPv4 packets.
* Added support for matching on fragmented/non-fragmented IPv4/IPv6 packets.
* **Updated Solarflare network PMD.**

5
drivers/net/mlx5/mlx5_flow_dv.c
View File

@ -5417,6 +5417,7 @@ flow_dv_validate(struct rte_eth_dev *dev, const struct rte_flow_attr *attr,
.proto = 0xff,
.hop_limits = 0xff,
},
.has_frag_ext = 1,
};
const struct rte_flow_item_ecpri nic_ecpri_mask = {
.hdr = {
@ -6734,6 +6735,10 @@ flow_dv_translate_item_ipv6(void *matcher, void *key,
ipv6_m->hdr.hop_limits);
MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_ttl_hoplimit,
ipv6_v->hdr.hop_limits & ipv6_m->hdr.hop_limits);
MLX5_SET(fte_match_set_lyr_2_4, headers_m, frag,
!!(ipv6_m->has_frag_ext));
MLX5_SET(fte_match_set_lyr_2_4, headers_v, frag,
!!(ipv6_v->has_frag_ext & ipv6_m->has_frag_ext));
}
/**