memif_ring_t *ring;
memif_queue_t *mq;
u16 buffer_size = VLIB_BUFFER_DEFAULT_FREE_LIST_BYTES;
- u32 next_index;
uword n_trace = vlib_get_trace_count (vm, node);
u32 n_rx_packets = 0, n_rx_bytes = 0;
- u32 n_left, *to_next = 0;
- u32 bi0, bi1, bi2, bi3;
+ u32 n_left;
vlib_buffer_t *b0, *b1, *b2, *b3;
u32 thread_index = vm->thread_index;
memif_per_thread_data_t *ptd = vec_elt_at_index (mm->per_thread_data,
ring_size = 1 << mq->log2_ring_size;
mask = ring_size - 1;
- next_index = (mode == MEMIF_INTERFACE_MODE_IP) ?
- VNET_DEVICE_INPUT_NEXT_IP6_INPUT : VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT;
-
/* asume that somebody will want to add ethernet header on the packet
so start with IP header at offset 14 */
start_offset = (mode == MEMIF_INTERFACE_MODE_IP) ? 14 : 0;
mq->last_tail = cur_slot;
}
- u32 n_from = n_rx_packets;
- po = ptd->packet_ops;
+ u16 nexts[MEMIF_RX_VECTOR_SZ], *next = nexts;
+ u32 to_next_buffers[MEMIF_RX_VECTOR_SZ], *bi = to_next_buffers;
+ /* prepare buffer template and next indices */
vnet_buffer (bt)->sw_if_index[VLIB_RX] = mif->sw_if_index;
+ vnet_buffer (bt)->feature_arc_index = 0;
bt->current_data = start_offset;
+ bt->current_config_index = 0;
- while (n_from)
+ if (mode == MEMIF_INTERFACE_MODE_ETHERNET)
{
- u32 n_left_to_next;
- u32 next0, next1, next2, next3;
-
- vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
- while (n_from >= 8 && n_left_to_next >= 4)
- {
- b0 = vlib_get_buffer (vm, po[4].first_buffer_vec_index);
- b1 = vlib_get_buffer (vm, po[5].first_buffer_vec_index);
- b2 = vlib_get_buffer (vm, po[6].first_buffer_vec_index);
- b3 = vlib_get_buffer (vm, po[7].first_buffer_vec_index);
- vlib_prefetch_buffer_header (b0, STORE);
- vlib_prefetch_buffer_header (b1, STORE);
- vlib_prefetch_buffer_header (b2, STORE);
- vlib_prefetch_buffer_header (b3, STORE);
-
- /* enqueue buffer */
- u32 fbvi0 = po[0].first_buffer_vec_index;
- u32 fbvi1 = po[1].first_buffer_vec_index;
- u32 fbvi2 = po[2].first_buffer_vec_index;
- u32 fbvi3 = po[3].first_buffer_vec_index;
- to_next[0] = bi0 = ptd->buffers[fbvi0];
- to_next[1] = bi1 = ptd->buffers[fbvi1];
- to_next[2] = bi2 = ptd->buffers[fbvi2];
- to_next[3] = bi3 = ptd->buffers[fbvi3];
- to_next += 4;
- n_left_to_next -= 4;
-
- b0 = vlib_get_buffer (vm, bi0);
- b1 = vlib_get_buffer (vm, bi1);
- b2 = vlib_get_buffer (vm, bi2);
- b3 = vlib_get_buffer (vm, bi3);
-
- clib_memcpy64_x4 (b0, b1, b2, b3, bt);
-
- b0->current_length = po[0].packet_len;
- n_rx_bytes += b0->current_length;
- b1->current_length = po[1].packet_len;
- n_rx_bytes += b1->current_length;
- b2->current_length = po[2].packet_len;
- n_rx_bytes += b2->current_length;
- b3->current_length = po[3].packet_len;
- n_rx_bytes += b3->current_length;
-
- memif_add_to_chain (vm, b0, ptd->buffers + fbvi0 + 1, buffer_size);
- memif_add_to_chain (vm, b1, ptd->buffers + fbvi1 + 1, buffer_size);
- memif_add_to_chain (vm, b2, ptd->buffers + fbvi2 + 1, buffer_size);
- memif_add_to_chain (vm, b3, ptd->buffers + fbvi3 + 1, buffer_size);
-
- if (mode == MEMIF_INTERFACE_MODE_IP)
- {
- next0 = memif_next_from_ip_hdr (node, b0);
- next1 = memif_next_from_ip_hdr (node, b1);
- next2 = memif_next_from_ip_hdr (node, b2);
- next3 = memif_next_from_ip_hdr (node, b3);
- }
- else if (mode == MEMIF_INTERFACE_MODE_ETHERNET)
- {
- if (PREDICT_FALSE (mif->per_interface_next_index != ~0))
- {
- next0 = mif->per_interface_next_index;
- next1 = mif->per_interface_next_index;
- next2 = mif->per_interface_next_index;
- next3 = mif->per_interface_next_index;
- }
- else
- {
- next0 = next1 = next2 = next3 = next_index;
- /* redirect if feature path enabled */
- vnet_feature_start_device_input_x1 (mif->sw_if_index,
- &next0, b0);
- vnet_feature_start_device_input_x1 (mif->sw_if_index,
- &next1, b1);
- vnet_feature_start_device_input_x1 (mif->sw_if_index,
- &next2, b2);
- vnet_feature_start_device_input_x1 (mif->sw_if_index,
- &next3, b3);
- }
- }
-
- /* trace */
- if (PREDICT_FALSE (n_trace > 0))
- {
- memif_trace_buffer (vm, node, mif, b0, next0, qid, &n_trace);
- if (PREDICT_FALSE (n_trace > 0))
- memif_trace_buffer (vm, node, mif, b1, next1, qid, &n_trace);
- if (PREDICT_FALSE (n_trace > 0))
- memif_trace_buffer (vm, node, mif, b2, next2, qid, &n_trace);
- if (PREDICT_FALSE (n_trace > 0))
- memif_trace_buffer (vm, node, mif, b3, next3, qid, &n_trace);
- }
+ u32 next_index = VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT;
+ if (mif->per_interface_next_index != ~0)
+ next_index = mif->per_interface_next_index;
+ else
+ vnet_feature_start_device_input_x1 (mif->sw_if_index, &next_index,
+ bt);
+ clib_memset_u16 (nexts, next_index, n_rx_packets);
+ }
- /* enqueue */
- vlib_validate_buffer_enqueue_x4 (vm, node, next_index, to_next,
- n_left_to_next, bi0, bi1, bi2, bi3,
- next0, next1, next2, next3);
+ /* process buffer metadata */
+ u32 n_from = n_rx_packets;
+ po = ptd->packet_ops;
- /* next */
- n_from -= 4;
- po += 4;
- }
- while (n_from && n_left_to_next)
+ while (n_from >= 8)
+ {
+ b0 = vlib_get_buffer (vm, po[4].first_buffer_vec_index);
+ b1 = vlib_get_buffer (vm, po[5].first_buffer_vec_index);
+ b2 = vlib_get_buffer (vm, po[6].first_buffer_vec_index);
+ b3 = vlib_get_buffer (vm, po[7].first_buffer_vec_index);
+ vlib_prefetch_buffer_header (b0, STORE);
+ vlib_prefetch_buffer_header (b1, STORE);
+ vlib_prefetch_buffer_header (b2, STORE);
+ vlib_prefetch_buffer_header (b3, STORE);
+
+ /* enqueue buffer */
+ u32 fbvi[4];
+ fbvi[0] = po[0].first_buffer_vec_index;
+ fbvi[1] = po[1].first_buffer_vec_index;
+ fbvi[2] = po[2].first_buffer_vec_index;
+ fbvi[3] = po[3].first_buffer_vec_index;
+
+ bi[0] = ptd->buffers[fbvi[0]];
+ bi[1] = ptd->buffers[fbvi[1]];
+ bi[2] = ptd->buffers[fbvi[2]];
+ bi[3] = ptd->buffers[fbvi[3]];
+
+ b0 = vlib_get_buffer (vm, bi[0]);
+ b1 = vlib_get_buffer (vm, bi[1]);
+ b2 = vlib_get_buffer (vm, bi[2]);
+ b3 = vlib_get_buffer (vm, bi[3]);
+
+ clib_memcpy64_x4 (b0, b1, b2, b3, bt);
+
+ b0->current_length = po[0].packet_len;
+ n_rx_bytes += b0->current_length;
+ b1->current_length = po[1].packet_len;
+ n_rx_bytes += b1->current_length;
+ b2->current_length = po[2].packet_len;
+ n_rx_bytes += b2->current_length;
+ b3->current_length = po[3].packet_len;
+ n_rx_bytes += b3->current_length;
+
+ memif_add_to_chain (vm, b0, ptd->buffers + fbvi[0] + 1, buffer_size);
+ memif_add_to_chain (vm, b1, ptd->buffers + fbvi[1] + 1, buffer_size);
+ memif_add_to_chain (vm, b2, ptd->buffers + fbvi[2] + 1, buffer_size);
+ memif_add_to_chain (vm, b3, ptd->buffers + fbvi[3] + 1, buffer_size);
+
+ if (mode == MEMIF_INTERFACE_MODE_IP)
{
- /* enqueue buffer */
- u32 fbvi0 = po->first_buffer_vec_index;
- to_next[0] = bi0 = ptd->buffers[fbvi0];
- to_next += 1;
- n_left_to_next--;
-
- b0 = vlib_get_buffer (vm, bi0);
- clib_memcpy (b0, bt, 64);
- b0->current_length = po->packet_len;
- n_rx_bytes += b0->current_length;
-
- memif_add_to_chain (vm, b0, ptd->buffers + fbvi0 + 1, buffer_size);
-
- if (mode == MEMIF_INTERFACE_MODE_IP)
- {
- next0 = memif_next_from_ip_hdr (node, b0);
- }
- else if (mode == MEMIF_INTERFACE_MODE_ETHERNET)
- {
- if (PREDICT_FALSE (mif->per_interface_next_index != ~0))
- next0 = mif->per_interface_next_index;
- else
- {
- next0 = next_index;
- /* redirect if feature path enabled */
- vnet_feature_start_device_input_x1 (mif->sw_if_index,
- &next0, b0);
- }
+ next[0] = memif_next_from_ip_hdr (node, b0);
+ next[1] = memif_next_from_ip_hdr (node, b1);
+ next[2] = memif_next_from_ip_hdr (node, b2);
+ next[3] = memif_next_from_ip_hdr (node, b3);
+ }
- }
+ /* next */
+ n_from -= 4;
+ po += 4;
+ bi += 4;
+ next += 4;
+ }
+ while (n_from)
+ {
+ u32 fbvi[4];
+ /* enqueue buffer */
+ fbvi[0] = po[0].first_buffer_vec_index;
+ bi[0] = ptd->buffers[fbvi[0]];
+ b0 = vlib_get_buffer (vm, bi[0]);
+ clib_memcpy (b0, bt, 64);
+ b0->current_length = po->packet_len;
+ n_rx_bytes += b0->current_length;
+
+ memif_add_to_chain (vm, b0, ptd->buffers + fbvi[0] + 1, buffer_size);
+
+ if (mode == MEMIF_INTERFACE_MODE_IP)
+ {
+ next[0] = memif_next_from_ip_hdr (node, b0);
+ }
- /* trace */
- if (PREDICT_FALSE (n_trace > 0))
- memif_trace_buffer (vm, node, mif, b0, next0, qid, &n_trace);
+ /* next */
+ n_from -= 1;
+ po += 1;
+ bi += 1;
+ next += 1;
+ }
- /* enqueue */
- vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
- n_left_to_next, bi0, next0);
+ /* packet trace if enabled */
+ if (PREDICT_FALSE ((n_trace = vlib_get_trace_count (vm, node))))
+ {
+ u32 n_left = n_rx_packets;
+ bi = to_next_buffers;
+ next = nexts;
+ while (n_trace && n_left)
+ {
+ vlib_buffer_t *b;
+ memif_input_trace_t *tr;
+ b = vlib_get_buffer (vm, bi[0]);
+ vlib_trace_buffer (vm, node, next[0], b, /* follow_chain */ 0);
+ tr = vlib_add_trace (vm, node, b, sizeof (*tr));
+ tr->next_index = next[0];
+ tr->hw_if_index = mif->hw_if_index;
+ tr->ring = qid;
/* next */
- n_from--;
- po++;
+ n_trace--;
+ n_left--;
+ bi++;
+ next++;
}
- vlib_put_next_frame (vm, node, next_index, n_left_to_next);
+ vlib_set_trace_count (vm, node, n_trace);
}
+ vlib_buffer_enqueue_to_next (vm, node, to_next_buffers, nexts,
+ n_rx_packets);
+
vlib_increment_combined_counter (vnm->interface_main.combined_sw_if_counters
+ VNET_INTERFACE_COUNTER_RX, thread_index,
mif->hw_if_index, n_rx_packets,
Code Review / vpp.git / commitdiff