#include <vnet/devices/af_packet/af_packet.h>
-#define foreach_af_packet_input_error
+#define foreach_af_packet_input_error \
+ _(PARTIAL_PKT, "partial packet")
typedef enum
{
u32 frame_num = apif->rx_req->tp_frame_nr;
u8 *block_start = apif->rx_ring + block * block_size;
uword n_trace = vlib_get_trace_count (vm, node);
- u32 thread_index = vlib_get_thread_index ();
- u32 n_buffer_bytes = vlib_buffer_free_list_buffer_size (vm,
- VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX);
+ u32 thread_index = vm->thread_index;
+ 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))
{
{
if (PREDICT_TRUE (offset == 0))
{
- clib_memcpy (vlib_buffer_get_current (b0),
- (u8 *) tph + tph->tp_mac,
- sizeof (ethernet_header_t));
+ clib_memcpy_fast (vlib_buffer_get_current (b0),
+ (u8 *) tph + tph->tp_mac,
+ sizeof (ethernet_header_t));
ethernet_header_t *eth = vlib_buffer_get_current (b0);
ethernet_vlan_header_t *vlan =
(ethernet_vlan_header_t *) (eth + 1);
bytes_copied = sizeof (ethernet_header_t);
}
}
- clib_memcpy (((u8 *) vlib_buffer_get_current (b0)) +
- bytes_copied + vlan_len,
- (u8 *) tph + tph->tp_mac + offset + bytes_copied,
- (bytes_to_copy - bytes_copied));
+ clib_memcpy_fast (((u8 *) vlib_buffer_get_current (b0)) +
+ bytes_copied + vlan_len,
+ (u8 *) tph + tph->tp_mac + offset +
+ bytes_copied, (bytes_to_copy - bytes_copied));
/* fill buffer header */
b0->current_length = bytes_to_copy + vlan_len;
to_next += 1;
n_left_to_next--;
+ /* drop partial packets */
+ if (PREDICT_FALSE (tph->tp_len != tph->tp_snaplen))
+ {
+ next0 = VNET_DEVICE_INPUT_NEXT_DROP;
+ first_b0->error =
+ node->errors[AF_PACKET_INPUT_ERROR_PARTIAL_PKT];
+ }
+ 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;
tr->hw_if_index = apif->hw_if_index;
- clib_memcpy (&tr->tph, tph, sizeof (struct tpacket2_hdr));
+ clib_memcpy_fast (&tr->tph, tph, sizeof (struct tpacket2_hdr));
}
- /* redirect if feature path enabled */
- vnet_feature_start_device_input_x1 (apif->sw_if_index, &next0, b0);
-
/* enque and take next packet */
vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
n_left_to_next, first_bi0, next0);
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;
/* *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,
.n_errors = AF_PACKET_INPUT_N_ERROR,
.error_strings = af_packet_input_error_strings,
};
-
-VLIB_NODE_FUNCTION_MULTIARCH (af_packet_input_node, af_packet_input_fn)
/* *INDENT-ON* */