diff options
| author | Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com> | 2018-02-15 20:19:09 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-02-16 16:24:24 -0500 |
| commit | ffa61202fe2972577794004f79652360b5f4ddb0 (patch) | |
| tree | c1e93fca144dc3b2a84b550fcd0ac34f1db3a9f1 /drivers/net/ethernet/netronome/nfp/flower/match.c | |
| parent | 014f9008989c0d6353e15621c6d3c18d6dfc1ab2 (diff) | |
| download | lwn-ffa61202fe2972577794004f79652360b5f4ddb0.tar.gz lwn-ffa61202fe2972577794004f79652360b5f4ddb0.zip | |
nfp: flower: implement tcp flag match offload
Implement tcp flag match offloading. Current tcp flag match support include
FIN, SYN, RST, PSH and URG flags, other flags are unsupported. The PSH and
URG flags are only set in the hardware fast path when used in combination
with the SYN, RST and PSH flags.
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/netronome/nfp/flower/match.c')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/flower/match.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/flower/match.c b/drivers/net/ethernet/netronome/nfp/flower/match.c index 37c2ecae2a7a..b3bc8279d4fb 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/match.c +++ b/drivers/net/ethernet/netronome/nfp/flower/match.c @@ -181,6 +181,26 @@ nfp_flower_compile_ipv4(struct nfp_flower_ipv4 *frame, frame->tos = flow_ip->tos; frame->ttl = flow_ip->ttl; } + + if (dissector_uses_key(flow->dissector, FLOW_DISSECTOR_KEY_TCP)) { + struct flow_dissector_key_tcp *tcp; + u32 tcp_flags; + + tcp = skb_flow_dissector_target(flow->dissector, + FLOW_DISSECTOR_KEY_TCP, target); + tcp_flags = be16_to_cpu(tcp->flags); + + if (tcp_flags & TCPHDR_FIN) + frame->flags |= NFP_FL_TCP_FLAG_FIN; + if (tcp_flags & TCPHDR_SYN) + frame->flags |= NFP_FL_TCP_FLAG_SYN; + if (tcp_flags & TCPHDR_RST) + frame->flags |= NFP_FL_TCP_FLAG_RST; + if (tcp_flags & TCPHDR_PSH) + frame->flags |= NFP_FL_TCP_FLAG_PSH; + if (tcp_flags & TCPHDR_URG) + frame->flags |= NFP_FL_TCP_FLAG_URG; + } } static void |