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nfp: add IPv4 ttl and tos match offloading support

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Previously matching on IPv4 ttl and tos fields were not offloaded. This
patch enables offloading IPv4 ttl and tos as match fields.

Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pieter Jansen van Vuuren 2017-10-06 10:21:21 +02:00 committed by David S. Miller
parent bb055c198d
commit a1e9203cc6
2 changed files with 10 additions and 5 deletions
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11
drivers/net/ethernet/netronome/nfp/flower/match.c
View file

@ -156,7 +156,6 @@ nfp_flower_compile_ipv4(struct nfp_flower_ipv4 *frame,
struct flow_dissector_key_ipv4_addrs *addr;
struct flow_dissector_key_basic *basic;
/* Wildcard TOS/TTL for now. */
memset(frame, 0, sizeof(struct nfp_flower_ipv4));
if (dissector_uses_key(flow->dissector,
@ -174,6 +173,16 @@ nfp_flower_compile_ipv4(struct nfp_flower_ipv4 *frame,
target);
frame->proto = basic->ip_proto;
}
if (dissector_uses_key(flow->dissector, FLOW_DISSECTOR_KEY_IP)) {
struct flow_dissector_key_ip *flow_ip;
flow_ip = skb_flow_dissector_target(flow->dissector,
FLOW_DISSECTOR_KEY_IP,
target);
frame->tos = flow_ip->tos;
frame->ttl = flow_ip->ttl;
}
}
static void

4
drivers/net/ethernet/netronome/nfp/flower/offload.c
View file

@ -216,10 +216,6 @@ nfp_flower_calculate_key_layers(struct nfp_fl_key_ls *ret_key_ls,
/* Ethernet type is present in the key. */
switch (key_basic->n_proto) {
case cpu_to_be16(ETH_P_IP):
if (mask_ip && mask_ip->tos)
return -EOPNOTSUPP;
if (mask_ip && mask_ip->ttl)
return -EOPNOTSUPP;
key_layer |= NFP_FLOWER_LAYER_IPV4;
key_size += sizeof(struct nfp_flower_ipv4);
break;