vnet: add device-input threadplacement infra - vpp

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author	Damjan Marion <damarion@cisco.com>	2017-03-20 16:34:15 +0100
committer	Damjan Marion <damarion@cisco.com>	2017-03-20 16:34:15 +0100
commit	eb743fad56b32cb20ad2d2cadc4760f9c25be5e1 (patch)
tree	4e5b6cd7b7635ee7269ab33300188de7fd42595d /src/vnet/devices/af_packet/node.c
parent	95475a3661b95150c8d1e60a3942b91c2b5d06bc (diff)

vnet: add device-input threadplacement infra

This change adds two new debug CLI command: - "show interface placmenet" to display which thread (main or worker) is responsible for processing interface rx queue vpp# show interface placement Thread 0 (vpp_main): node af-packet-input: host-vpp1 queue 0 Thread 1 (vpp_wk_0): node af-packet-input: host-virbr0 queue 0 Thread 2 (vpp_wk_1): node af-packet-input: host-vpp2 queue 0 host-lxcbr0 queue 0 - "set interface placmenet" to assign thread (main or worker) which process specific interface rx queue vpp# set interface placement host-vpp1 queue 0 main Change-Id: Id4dd00cf2b05e10fae2125ac7cb4411b446c5e9c Signed-off-by: Damjan Marion <damarion@cisco.com>

Diffstat (limited to 'src/vnet/devices/af_packet/node.c')

-rw-r--r--

src/vnet/devices/af_packet/node.c

1 files changed, 9 insertions, 14 deletions

/* * Copyright (c) 2015 Cisco and/or its affiliates. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include <vppinfra/error.h> #include <vppinfra/hash.h> #include <vnet/vnet.h> #include <vnet/ip/ip.h> #include <vnet/udp/udp.h> #include <vnet/ethernet/ethernet.h> #include <vnet/vxlan-gpe/vxlan_gpe.h> #include <ioam/lib-vxlan-gpe/vxlan_gpe_ioam_packet.h> #include <ioam/lib-vxlan-gpe/vxlan_gpe_ioam.h> #include <ioam/lib-vxlan-gpe/vxlan_gpe_ioam_util.h> #include <vnet/fib/ip6_fib.h> #include <vnet/fib/ip4_fib.h> #include <vnet/fib/fib_entry.h> /* Statistics (not really errors) */ #define foreach_vxlan_gpe_transit_ioam_error \ _(ENCAPSULATED, "good packets encapsulated") static char *vxlan_gpe_transit_ioam_error_strings[] = { #define _(sym,string) string, foreach_vxlan_gpe_transit_ioam_error #undef _ }; typedef enum { #define _(sym,str) VXLAN_GPE_TRANSIT_IOAM_ERROR_##sym, foreach_vxlan_gpe_transit_ioam_error #undef _ VXLAN_GPE_TRANSIT_IOAM_N_ERROR, } vxlan_gpe_transit_ioam_error_t; typedef enum { VXLAN_GPE_TRANSIT_IOAM_NEXT_OUTPUT, VXLAN_GPE_TRANSIT_IOAM_NEXT_DROP, VXLAN_GPE_TRANSIT_IOAM_N_NEXT } vxlan_gpe_transit_ioam_next_t; /* *INDENT-OFF* */ VNET_FEATURE_INIT (vxlan_gpe_transit_ioam, static) = { .arc_name = "ip4-output", .node_name = "vxlan-gpe-transit-ioam", .runs_before = VNET_FEATURES ("interface-output"), }; /* *INDENT-ON* */ static uword vxlan_gpe_transit_ioam (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * from_frame) { u32 n_left_from, next_index, *from, *to_next; from = vlib_frame_vector_args (from_frame); n_left_from = from_frame->n_vectors; next_index = node->cached_next_index; while (n_left_from > 0) { u32 n_left_to_next; vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); while (n_left_from > 0 && n_left_to_next > 0) { u32 bi0; vlib_buffer_t *b0; u32 next0 = VXLAN_GPE_TRANSIT_IOAM_NEXT_OUTPUT; bi0 = from[0]; to_next[0] = bi0; from += 1; to_next += 1; n_left_from -= 1; n_left_to_next -= 1; ip4_header_t *ip0; u32 iph_offset = 0; b0 = vlib_get_buffer (vm, bi0); iph_offset = vnet_buffer (b0)->ip.save_rewrite_length; ip0 = (ip4_header_t *) ((u8 *) vlib_buffer_get_current (b0) + iph_offset); /* just forward non ipv4 packets */ if (PREDICT_FALSE ((ip0->ip_version_and_header_length & 0xF0) == 0x40)) { /* ipv4 packets */ udp_header_t *udp_hdr0 = (udp_header_t *) (ip0 + 1); if (PREDICT_FALSE ((ip0->protocol == IP_PROTOCOL_UDP) && (clib_net_to_host_u16 (udp_hdr0->dst_port) == UDP_DST_PORT_vxlan_gpe))) { /* Check the iOAM header */ vxlan_gpe_header_t *gpe_hdr0 = (vxlan_gpe_header_t *) (udp_hdr0 + 1); if (PREDICT_FALSE (gpe_hdr0->protocol == VXLAN_GPE_PROTOCOL_IOAM)) { uword *t = NULL; vxlan_gpe_ioam_main_t *hm = &vxlan_gpe_ioam_main; fib_prefix_t key4; memset (&key4, 0, sizeof (key4)); key4.fp_proto = FIB_PROTOCOL_IP4; key4.fp_addr.ip4.as_u32 = ip0->dst_address.as_u32; t = hash_get_mem (hm->dst_by_ip4, &key4); if (t) { vlib_buffer_advance (b0, (word) (sizeof (ethernet_header_t))); vxlan_gpe_encap_decap_ioam_v4_one_inline (vm, node, b0, &next0, VXLAN_GPE_TRANSIT_IOAM_NEXT_DROP, 1 /* use_adj */ ); vlib_buffer_advance (b0, -(word) (sizeof (ethernet_header_t))); } } } } vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, n_left_to_next, bi0, next0); } vlib_put_next_frame (vm, node, next_index, n_left_to_next); } return from_frame->n_vectors; } /* *INDENT-OFF* */ VLIB_REGISTER_NODE (vxlan_gpe_transit_ioam_node) = { .function = vxlan_gpe_transit_ioam, .name = "vxlan-gpe-transit-ioam", .vector_size = sizeof (u32), .format_trace = format_vxlan_gpe_ioam_v4_trace, .type = VLIB_NODE_TYPE_INTERNAL, .n_errors = ARRAY_LEN(vxlan_gpe_transit_ioam_error_strings), .error_strings = vxlan_gpe_transit_ioam_error_strings, .n_next_nodes = VXLAN_GPE_TRANSIT_IOAM_N_NEXT, .next_nodes = { [VXLAN_GPE_TRANSIT_IOAM_NEXT_OUTPUT] = "interface-output", [VXLAN_GPE_TRANSIT_IOAM_NEXT_DROP] = "error-drop", }, }; /* *INDENT-ON* */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */


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