diff options
| author |   Florin Coras <fcoras@cisco.com> | 2017-06-19 12:26:09 -0400 |
|---|---|---|
| committer |   Dave Barach <openvpp@barachs.net> | 2017-06-22 16:55:03 +0000 |
| commit | f6359c8cace5b73a813e5f4e3d1bc28f7752fcdf (patch) | |
| tree | 38aa2a4dca15fb49c8c6ed967f1fd50d522926cc /src/vnet/tcp/tcp_output.c | |
| parent | 5be2d073ceb695104fd84bce592cb588f8aaaa66 (diff) | |
Improve svm fifo and tcp tx path performance (VPP-846)
- multiarch on svm fifo
- avoid ip lookup on tx
Change-Id: Iab0d85204a710979417bca1d692cc47877131203
Signed-off-by: Florin Coras <fcoras@cisco.com>
Signed-off-by: Dave Barach <dbarach@cisco.com>
Diffstat (limited to 'src/vnet/tcp/tcp_output.c')
| -rw-r--r-- | src/vnet/tcp/tcp_output.c | 29 |
1 files changed, 21 insertions, 8 deletions
diff --git a/src/vnet/tcp/tcp_output.c b/src/vnet/tcp/tcp_output.c index 554a981d924..41bebcb34af 100644 --- a/src/vnet/tcp/tcp_output.c +++ b/src/vnet/tcp/tcp_output.c @@ -22,17 +22,14 @@ vlib_node_registration_t tcp6_output_node; typedef enum _tcp_output_nect { TCP_OUTPUT_NEXT_DROP, - TCP_OUTPUT_NEXT_IP_LOOKUP, TCP_OUTPUT_N_NEXT } tcp_output_next_t; #define foreach_tcp4_output_next \ _ (DROP, "error-drop") \ - _ (IP_LOOKUP, "ip4-lookup") #define foreach_tcp6_output_next \ _ (DROP, "error-drop") \ - _ (IP_LOOKUP, "ip6-lookup") static char *tcp_error_strings[] = { #define tcp_error(n,s) s, @@ -1451,7 +1448,7 @@ tcp46_output_inline (vlib_main_t * vm, tcp_connection_t *tc0; tcp_tx_trace_t *t0; tcp_header_t *th0 = 0; - u32 error0 = TCP_ERROR_PKTS_SENT, next0 = TCP_OUTPUT_NEXT_IP_LOOKUP; + u32 error0 = TCP_ERROR_PKTS_SENT, next0 = TCP_OUTPUT_NEXT_DROP; bi0 = from[0]; to_next[0] = bi0; @@ -1530,10 +1527,26 @@ tcp46_output_inline (vlib_main_t * vm, tc0->rto_boff = 0; } - /* set fib index to default and lookup node */ - /* XXX network virtualization (vrf/vni) */ - vnet_buffer (b0)->sw_if_index[VLIB_RX] = 0; - vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0; + /* Make sure we haven't lost route to our peer */ + if (PREDICT_FALSE (tc0->last_fib_check + < tc0->snd_opts.tsval + TCP_FIB_RECHECK_PERIOD)) + { + if (PREDICT_TRUE + (tc0->c_rmt_fei == tcp_lookup_rmt_in_fib (tc0))) + { + tc0->last_fib_check = tc0->snd_opts.tsval; + } + else + { + clib_warning ("lost connection to peer"); + tcp_connection_reset (tc0); + goto done; + } + } + + /* Use pre-computed dpo to set next node */ + next0 = tc0->c_rmt_dpo.dpoi_next_node; + vnet_buffer (b0)->ip.adj_index[VLIB_TX] = tc0->c_rmt_dpo.dpoi_index; b0->flags |= VNET_BUFFER_LOCALLY_ORIGINATED; done: |