diff options
Diffstat (limited to 'src/vnet/devices/af_packet/device.c')
| -rw-r--r-- | src/vnet/devices/af_packet/device.c | 88 |
1 files changed, 82 insertions, 6 deletions
diff --git a/src/vnet/devices/af_packet/device.c b/src/vnet/devices/af_packet/device.c index 1aa1e0823c1..f7f006ebd7f 100644 --- a/src/vnet/devices/af_packet/device.c +++ b/src/vnet/devices/af_packet/device.c @@ -56,6 +56,14 @@ static char *af_packet_tx_func_error_strings[] = { #undef _ }; +typedef struct +{ + u32 buffer_index; + u32 hw_if_index; + tpacket3_hdr_t tph; + vnet_virtio_net_hdr_t vnet_hdr; + vlib_buffer_t buffer; +} af_packet_tx_trace_t; #ifndef CLIB_MARCH_VARIANT u8 * @@ -128,12 +136,67 @@ format_af_packet_device (u8 * s, va_list * args) } static u8 * -format_af_packet_tx_trace (u8 * s, va_list * args) +format_af_packet_tx_trace (u8 *s, va_list *va) { - s = format (s, "Unimplemented..."); + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*va, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*va, vlib_node_t *); + af_packet_tx_trace_t *t = va_arg (*va, af_packet_tx_trace_t *); + u32 indent = format_get_indent (s); + + s = format (s, "af_packet: hw_if_index %u", t->hw_if_index); + + s = + format (s, + "\n%Utpacket3_hdr:\n%Ustatus 0x%x len %u snaplen %u mac %u net %u" + "\n%Usec 0x%x nsec 0x%x vlan %U" +#ifdef TP_STATUS_VLAN_TPID_VALID + " vlan_tpid %u" +#endif + , + format_white_space, indent + 2, format_white_space, indent + 4, + t->tph.tp_status, t->tph.tp_len, t->tph.tp_snaplen, t->tph.tp_mac, + t->tph.tp_net, format_white_space, indent + 4, t->tph.tp_sec, + t->tph.tp_nsec, format_ethernet_vlan_tci, t->tph.hv1.tp_vlan_tci +#ifdef TP_STATUS_VLAN_TPID_VALID + , + t->tph.hv1.tp_vlan_tpid +#endif + ); + + s = format (s, + "\n%Uvnet-hdr:\n%Uflags 0x%02x gso_type 0x%02x hdr_len %u" + "\n%Ugso_size %u csum_start %u csum_offset %u", + format_white_space, indent + 2, format_white_space, indent + 4, + t->vnet_hdr.flags, t->vnet_hdr.gso_type, t->vnet_hdr.hdr_len, + format_white_space, indent + 4, t->vnet_hdr.gso_size, + t->vnet_hdr.csum_start, t->vnet_hdr.csum_offset); + + s = format (s, "\n%Ubuffer 0x%x:\n%U%U", format_white_space, indent + 2, + t->buffer_index, format_white_space, indent + 4, + format_vnet_buffer_no_chain, &t->buffer); + s = format (s, "\n%U%U", format_white_space, indent + 2, + format_ethernet_header_with_length, t->buffer.pre_data, + sizeof (t->buffer.pre_data)); return s; } +static void +af_packet_tx_trace (vlib_main_t *vm, vlib_node_runtime_t *node, + vlib_buffer_t *b0, u32 bi, tpacket3_hdr_t *tph, + vnet_virtio_net_hdr_t *vnet_hdr, u32 hw_if_index) +{ + af_packet_tx_trace_t *t; + t = vlib_add_trace (vm, node, b0, sizeof (t[0])); + t->hw_if_index = hw_if_index; + t->buffer_index = bi; + + clib_memcpy_fast (&t->tph, tph, sizeof (*tph)); + clib_memcpy_fast (&t->vnet_hdr, vnet_hdr, sizeof (*vnet_hdr)); + clib_memcpy_fast (&t->buffer, b0, sizeof (*b0) - sizeof (b0->pre_data)); + clib_memcpy_fast (t->buffer.pre_data, vlib_buffer_get_current (b0), + sizeof (t->buffer.pre_data)); +} + static_always_inline void fill_gso_offload (vlib_buffer_t *b0, vnet_virtio_net_hdr_t *vnet_hdr) { @@ -247,9 +310,10 @@ VNET_DEVICE_CLASS_TX_FN (af_packet_device_class) (vlib_main_t * vm, u32 len; vnet_virtio_net_hdr_t *vnet_hdr = 0; u32 offset = 0; - vlib_buffer_t *b0 = 0; - u32 bi = buffers[0]; + vlib_buffer_t *b0 = 0, *b0_first = 0; + u32 bi, bi_first; + bi = bi_first = buffers[0]; n_left--; buffers++; @@ -261,9 +325,9 @@ VNET_DEVICE_CLASS_TX_FN (af_packet_device_class) (vlib_main_t * vm, goto next; } - b0 = vlib_get_buffer (vm, bi); + b0_first = b0 = vlib_get_buffer (vm, bi); - if (is_cksum_gso_enabled) + if (PREDICT_TRUE (is_cksum_gso_enabled)) { vnet_hdr = (vnet_virtio_net_hdr_t *) ((u8 *) tph + TPACKET_ALIGN (sizeof ( @@ -298,6 +362,18 @@ VNET_DEVICE_CLASS_TX_FN (af_packet_device_class) (vlib_main_t * vm, tph->tp_status = TP_STATUS_SEND_REQUEST; n_sent++; + if (PREDICT_FALSE (b0_first->flags & VLIB_BUFFER_IS_TRACED)) + { + if (PREDICT_TRUE (is_cksum_gso_enabled)) + af_packet_tx_trace (vm, node, b0_first, bi_first, tph, vnet_hdr, + apif->hw_if_index); + else + { + vnet_virtio_net_hdr_t vnet_hdr2 = {}; + af_packet_tx_trace (vm, node, b0_first, bi_first, tph, + &vnet_hdr2, apif->hw_if_index); + } + } tx_frame = (tx_frame + 1) % frame_num; next: |