diff options
| -rw-r--r-- | src/vnet/devices/virtio/device.c | 62 |
1 files changed, 60 insertions, 2 deletions
diff --git a/src/vnet/devices/virtio/device.c b/src/vnet/devices/virtio/device.c index 87fd6fdcf5f..45c390d415d 100644 --- a/src/vnet/devices/virtio/device.c +++ b/src/vnet/devices/virtio/device.c @@ -69,10 +69,30 @@ format_virtio_device (u8 * s, va_list * args) return s; } +typedef struct +{ + u32 buffer_index; + u32 sw_if_index; + vlib_buffer_t buffer; + generic_header_offset_t gho; +} virtio_tx_trace_t; + static u8 * -format_virtio_tx_trace (u8 * s, va_list * args) +format_virtio_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 *); + virtio_tx_trace_t *t = va_arg (*va, virtio_tx_trace_t *); + u32 indent = format_get_indent (s); + + s = format (s, "%U ", format_generic_header_offset, &t->gho); + s = format (s, "%Ubuffer 0x%x: %U", + format_white_space, indent, + t->buffer_index, format_vnet_buffer, &t->buffer); + + s = format (s, "\n%U%U", format_white_space, indent, + format_ethernet_header_with_length, t->buffer.pre_data, + sizeof (t->buffer.pre_data)); return s; } @@ -526,6 +546,44 @@ retry: while (n_left && free_desc_count) { u16 n_added = 0; + virtio_tx_trace_t *t; + + vlib_buffer_t *b0 = vlib_get_buffer (vm, buffers[0]); + if (b0->flags & VLIB_BUFFER_IS_TRACED) + { + t = vlib_add_trace (vm, node, b0, sizeof (t[0])); + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_TX]; + t->buffer_index = buffers[0]; + if (type == VIRTIO_IF_TYPE_TUN) + { + int is_ip4 = 0, is_ip6 = 0; + + switch (((u8 *) vlib_buffer_get_current (b0))[0] & 0xf0) + { + case 0x40: + is_ip4 = 1; + break; + case 0x60: + is_ip6 = 1; + break; + default: + break; + } + vnet_generic_header_offset_parser (b0, &t->gho, 0, is_ip4, + is_ip6); + } + else + vnet_generic_header_offset_parser (b0, &t->gho, 1, + b0->flags & + VNET_BUFFER_F_IS_IP4, + b0->flags & + VNET_BUFFER_F_IS_IP6); + + 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)); + } n_added = add_buffer_to_slot (vm, vif, type, vring, buffers[0], free_desc_count, avail, next, mask, do_gso, csum_offload, |