X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvnet%2Fdevices%2Faf_packet%2Fnode.c;h=caddcfa416bd4bb633fba53b8dd8d2d4f82495a8;hb=7d0e30bc6;hp=2aa52e06a621296ec8e634cc56e63e5333f402ed;hpb=8934a04596d1421c35b194949b2027ca1fe71aef;p=vpp.git diff --git a/src/vnet/devices/af_packet/node.c b/src/vnet/devices/af_packet/node.c index 2aa52e06a62..caddcfa416b 100644 --- a/src/vnet/devices/af_packet/node.c +++ b/src/vnet/devices/af_packet/node.c @@ -23,7 +23,7 @@ #include #include #include -#include +#include #include #include @@ -109,9 +109,18 @@ buffer_add_to_chain (vlib_main_t * vm, u32 bi, u32 first_bi, u32 prev_bi) } static_always_inline void -mark_tcp_udp_cksum_calc (vlib_buffer_t * b) +fill_gso_buffer_flags (vlib_buffer_t *b, u32 gso_size, u8 l4_hdr_sz) +{ + b->flags |= VNET_BUFFER_F_GSO; + vnet_buffer2 (b)->gso_size = gso_size; + vnet_buffer2 (b)->gso_l4_hdr_sz = l4_hdr_sz; +} + +static_always_inline void +mark_tcp_udp_cksum_calc (vlib_buffer_t *b, u8 *l4_hdr_sz) { ethernet_header_t *eth = vlib_buffer_get_current (b); + vnet_buffer_oflags_t oflags = 0; if (clib_net_to_host_u16 (eth->type) == ETHERNET_TYPE_IP4) { ip4_header_t *ip4 = @@ -119,23 +128,27 @@ mark_tcp_udp_cksum_calc (vlib_buffer_t * b) b->flags |= VNET_BUFFER_F_IS_IP4; if (ip4->protocol == IP_PROTOCOL_TCP) { - b->flags |= VNET_BUFFER_F_OFFLOAD_TCP_CKSUM; - ((tcp_header_t - *) (vlib_buffer_get_current (b) + - sizeof (ethernet_header_t) + - ip4_header_bytes (ip4)))->checksum = 0; + oflags |= VNET_BUFFER_OFFLOAD_F_TCP_CKSUM; + tcp_header_t *tcp = (tcp_header_t *) (vlib_buffer_get_current (b) + + sizeof (ethernet_header_t) + + ip4_header_bytes (ip4)); + tcp->checksum = 0; + *l4_hdr_sz = tcp_header_bytes (tcp); } else if (ip4->protocol == IP_PROTOCOL_UDP) { - b->flags |= VNET_BUFFER_F_OFFLOAD_UDP_CKSUM; - ((udp_header_t - *) (vlib_buffer_get_current (b) + - sizeof (ethernet_header_t) + - ip4_header_bytes (ip4)))->checksum = 0; + oflags |= VNET_BUFFER_OFFLOAD_F_UDP_CKSUM; + udp_header_t *udp = (udp_header_t *) (vlib_buffer_get_current (b) + + sizeof (ethernet_header_t) + + ip4_header_bytes (ip4)); + udp->checksum = 0; + *l4_hdr_sz = sizeof (*udp); } vnet_buffer (b)->l3_hdr_offset = sizeof (ethernet_header_t); vnet_buffer (b)->l4_hdr_offset = sizeof (ethernet_header_t) + ip4_header_bytes (ip4); + if (oflags) + vnet_buffer_offload_flags_set (b, oflags); } else if (clib_net_to_host_u16 (eth->type) == ETHERNET_TYPE_IP6) { @@ -155,21 +168,27 @@ mark_tcp_udp_cksum_calc (vlib_buffer_t * b) } if (ip6->protocol == IP_PROTOCOL_TCP) { - b->flags |= VNET_BUFFER_F_OFFLOAD_TCP_CKSUM; - ((tcp_header_t - *) (vlib_buffer_get_current (b) + - sizeof (ethernet_header_t) + ip6_hdr_len))->checksum = 0; + oflags |= VNET_BUFFER_OFFLOAD_F_TCP_CKSUM; + tcp_header_t *tcp = + (tcp_header_t *) (vlib_buffer_get_current (b) + + sizeof (ethernet_header_t) + ip6_hdr_len); + tcp->checksum = 0; + *l4_hdr_sz = tcp_header_bytes (tcp); } else if (ip6->protocol == IP_PROTOCOL_UDP) { - b->flags |= VNET_BUFFER_F_OFFLOAD_UDP_CKSUM; - ((udp_header_t - *) (vlib_buffer_get_current (b) + - sizeof (ethernet_header_t) + ip6_hdr_len))->checksum = 0; + oflags |= VNET_BUFFER_OFFLOAD_F_UDP_CKSUM; + udp_header_t *udp = + (udp_header_t *) (vlib_buffer_get_current (b) + + sizeof (ethernet_header_t) + ip6_hdr_len); + udp->checksum = 0; + *l4_hdr_sz = sizeof (*udp); } vnet_buffer (b)->l3_hdr_offset = sizeof (ethernet_header_t); vnet_buffer (b)->l4_hdr_offset = sizeof (ethernet_header_t) + ip6_hdr_len; + if (oflags) + vnet_buffer_offload_flags_set (b, oflags); } } @@ -195,9 +214,6 @@ af_packet_device_input_fn (vlib_main_t * vm, vlib_node_runtime_t * node, u32 n_buffer_bytes = vlib_buffer_get_default_data_size (vm); u32 min_bufs = apif->rx_req->tp_frame_size / n_buffer_bytes; - if (apif->per_interface_next_index != ~0) - next_index = apif->per_interface_next_index; - n_free_bufs = vec_len (apm->rx_buffers[thread_index]); if (PREDICT_FALSE (n_free_bufs < VLIB_FRAME_SIZE)) { @@ -224,6 +240,7 @@ af_packet_device_input_fn (vlib_main_t * vm, vlib_node_runtime_t * node, u32 data_len = tph->tp_snaplen; u32 offset = 0; u32 bi0 = 0, first_bi0 = 0, prev_bi0; + u8 l4_hdr_sz = 0; while (data_len) { @@ -278,7 +295,10 @@ af_packet_device_input_fn (vlib_main_t * vm, vlib_node_runtime_t * node, first_bi0 = bi0; first_b0 = vlib_get_buffer (vm, first_bi0); if (tph->tp_status & TP_STATUS_CSUMNOTREADY) - mark_tcp_udp_cksum_calc (first_b0); + mark_tcp_udp_cksum_calc (first_b0, &l4_hdr_sz); + if (tph->tp_snaplen > apif->host_mtu) + fill_gso_buffer_flags (first_b0, apif->host_mtu, + l4_hdr_sz); } else buffer_add_to_chain (vm, bi0, first_bi0, prev_bi0); @@ -302,18 +322,21 @@ af_packet_device_input_fn (vlib_main_t * vm, vlib_node_runtime_t * node, else { next0 = VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT; + + if (PREDICT_FALSE (apif->per_interface_next_index != ~0)) + next0 = apif->per_interface_next_index; + /* redirect if feature path enabled */ vnet_feature_start_device_input_x1 (apif->sw_if_index, &next0, first_b0); } /* trace */ - VLIB_BUFFER_TRACE_TRAJECTORY_INIT (first_b0); - if (PREDICT_FALSE (n_trace > 0)) + if (PREDICT_FALSE + (n_trace > 0 && vlib_trace_buffer (vm, node, next0, first_b0, + /* follow_chain */ 0))) { af_packet_input_trace_t *tr; - vlib_trace_buffer (vm, node, next0, first_b0, /* follow_chain */ - 0); vlib_set_trace_count (vm, node, --n_trace); tr = vlib_add_trace (vm, node, first_b0, sizeof (*tr)); tr->next_index = next0; @@ -345,30 +368,28 @@ af_packet_device_input_fn (vlib_main_t * vm, vlib_node_runtime_t * node, return n_rx_packets; } -static uword -af_packet_input_fn (vlib_main_t * vm, vlib_node_runtime_t * node, - vlib_frame_t * frame) +VLIB_NODE_FN (af_packet_input_node) (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) { u32 n_rx_packets = 0; af_packet_main_t *apm = &af_packet_main; - vnet_device_input_runtime_t *rt = (void *) node->runtime_data; - vnet_device_and_queue_t *dq; - - foreach_device_and_queue (dq, rt->devices_and_queues) - { - af_packet_if_t *apif; - apif = vec_elt_at_index (apm->interfaces, dq->dev_instance); - if (apif->is_admin_up) - n_rx_packets += af_packet_device_input_fn (vm, node, frame, apif); - } + vnet_hw_if_rxq_poll_vector_t *pv; + pv = vnet_hw_if_get_rxq_poll_vector (vm, node); + for (int i = 0; i < vec_len (pv); i++) + { + af_packet_if_t *apif; + apif = vec_elt_at_index (apm->interfaces, pv[i].dev_instance); + if (apif->is_admin_up) + n_rx_packets += af_packet_device_input_fn (vm, node, frame, apif); + } return n_rx_packets; } -/* *INDENT-OFF* */ VLIB_REGISTER_NODE (af_packet_input_node) = { - .function = af_packet_input_fn, .name = "af-packet-input", + .flags = VLIB_NODE_FLAG_TRACE_SUPPORTED, .sibling_of = "device-input", .format_trace = format_af_packet_input_trace, .type = VLIB_NODE_TYPE_INPUT, @@ -377,9 +398,6 @@ VLIB_REGISTER_NODE (af_packet_input_node) = { .error_strings = af_packet_input_error_strings, }; -VLIB_NODE_FUNCTION_MULTIARCH (af_packet_input_node, af_packet_input_fn) -/* *INDENT-ON* */ - /* * fd.io coding-style-patch-verification: ON