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nfp: add IPv4 ttl and tos match offloading support
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>
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2 changed files with 10 additions and 5 deletions
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@ -156,7 +156,6 @@ nfp_flower_compile_ipv4(struct nfp_flower_ipv4 *frame,
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struct flow_dissector_key_ipv4_addrs *addr;
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struct flow_dissector_key_basic *basic;
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/* Wildcard TOS/TTL for now. */
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memset(frame, 0, sizeof(struct nfp_flower_ipv4));
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if (dissector_uses_key(flow->dissector,
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@ -174,6 +173,16 @@ nfp_flower_compile_ipv4(struct nfp_flower_ipv4 *frame,
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target);
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frame->proto = basic->ip_proto;
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}
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if (dissector_uses_key(flow->dissector, FLOW_DISSECTOR_KEY_IP)) {
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struct flow_dissector_key_ip *flow_ip;
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flow_ip = skb_flow_dissector_target(flow->dissector,
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FLOW_DISSECTOR_KEY_IP,
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target);
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frame->tos = flow_ip->tos;
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frame->ttl = flow_ip->ttl;
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}
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}
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static void
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@ -216,10 +216,6 @@ nfp_flower_calculate_key_layers(struct nfp_fl_key_ls *ret_key_ls,
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/* Ethernet type is present in the key. */
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switch (key_basic->n_proto) {
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case cpu_to_be16(ETH_P_IP):
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if (mask_ip && mask_ip->tos)
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return -EOPNOTSUPP;
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if (mask_ip && mask_ip->ttl)
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return -EOPNOTSUPP;
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key_layer |= NFP_FLOWER_LAYER_IPV4;
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key_size += sizeof(struct nfp_flower_ipv4);
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break;
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