diff options
| author | Lior Nahmanson <liorna@nvidia.com> | 2022-09-05 22:21:13 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-09-07 14:02:08 +0100 |
| commit | 0a28bfd4971fd570d1f3e4653b21415becefc92c (patch) | |
| tree | db9ef7de56c8de64dcbf441f7f3f359d0854261a /include/net/dst_metadata.h | |
| parent | da7d8e65b3fcebce0a2f606669cabce64fca0475 (diff) | |
net/macsec: Add MACsec skb_metadata_dst Tx Data path support
In the current MACsec offload implementation, MACsec interfaces shares
the same MAC address by default.
Therefore, HW can't distinguish from which MACsec interface the traffic
originated from.
MACsec stack will use skb_metadata_dst to store the SCI value, which is
unique per Macsec interface, skb_metadat_dst will be used by the
offloading device driver to associate the SKB with the corresponding
offloaded interface (SCI).
Signed-off-by: Lior Nahmanson <liorna@nvidia.com>
Reviewed-by: Raed Salem <raeds@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/dst_metadata.h')
| -rw-r--r-- | include/net/dst_metadata.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/net/dst_metadata.h b/include/net/dst_metadata.h index adab27ba1ecb..22a6924bf6da 100644 --- a/include/net/dst_metadata.h +++ b/include/net/dst_metadata.h @@ -4,11 +4,13 @@ #include <linux/skbuff.h> #include <net/ip_tunnels.h> +#include <net/macsec.h> #include <net/dst.h> enum metadata_type { METADATA_IP_TUNNEL, METADATA_HW_PORT_MUX, + METADATA_MACSEC, }; struct hw_port_info { @@ -16,12 +18,17 @@ struct hw_port_info { u32 port_id; }; +struct macsec_info { + sci_t sci; +}; + struct metadata_dst { struct dst_entry dst; enum metadata_type type; union { struct ip_tunnel_info tun_info; struct hw_port_info port_info; + struct macsec_info macsec_info; } u; }; @@ -82,6 +89,9 @@ static inline int skb_metadata_dst_cmp(const struct sk_buff *skb_a, return memcmp(&a->u.tun_info, &b->u.tun_info, sizeof(a->u.tun_info) + a->u.tun_info.options_len); + case METADATA_MACSEC: + return memcmp(&a->u.macsec_info, &b->u.macsec_info, + sizeof(a->u.macsec_info)); default: return 1; } |