#define foreach_vmxnet3_input_error \
_(BUFFER_ALLOC, "buffer alloc error") \
+ _(RX_PACKET_NO_SOP, "Rx packet error - no SOP") \
_(RX_PACKET, "Rx packet error") \
_(NO_BUFFER, "Rx no buffer error")
vmxnet3_rx_comp_ring *comp_ring;
u16 rid;
vlib_buffer_t *prev_b0 = 0, *hb = 0;
+ u32 next_index = VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT;
+ u8 known_next = 0, got_packet = 0;
+ vmxnet3_rx_desc *rxd;
+ clib_error_t *error;
rxq = vec_elt_at_index (vd->rxqs, qid);
comp_ring = &rxq->rx_comp_ring;
bi = buffer_indices;
next = nexts;
- while (comp_ring->gen ==
- (rxq->rx_comp[comp_ring->next].flags & VMXNET3_RXCF_GEN))
+ while (PREDICT_TRUE (n_rx_packets < VLIB_FRAME_SIZE) &&
+ (comp_ring->gen ==
+ (rxq->rx_comp[comp_ring->next].flags & VMXNET3_RXCF_GEN)))
{
vlib_buffer_t *b0;
+ u32 bi0;
comp_idx = comp_ring->next;
rx_comp = &rxq->rx_comp[comp_idx];
vmxnet3_rx_comp_ring_advance_next (rxq);
desc_idx = rx_comp->index & VMXNET3_RXC_INDEX;
ring->consume = desc_idx;
+ rxd = &rxq->rx_desc[rid][desc_idx];
- bi[0] = ring->bufs[desc_idx];
+ bi0 = ring->bufs[desc_idx];
ring->bufs[desc_idx] = ~0;
- b0 = vlib_get_buffer (vm, bi[0]);
+ b0 = vlib_get_buffer (vm, bi0);
vnet_buffer (b0)->sw_if_index[VLIB_RX] = vd->sw_if_index;
vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0;
+ vnet_buffer (b0)->feature_arc_index = 0;
b0->current_length = rx_comp->len & VMXNET3_RXCL_LEN_MASK;
b0->current_data = 0;
b0->total_length_not_including_first_buffer = 0;
b0->next_buffer = 0;
b0->flags = 0;
b0->error = 0;
+ b0->current_config_index = 0;
ASSERT (b0->current_length != 0);
+ if (PREDICT_FALSE ((rx_comp->index & VMXNET3_RXCI_EOP) &&
+ (rx_comp->len & VMXNET3_RXCL_ERROR)))
+ {
+ vlib_buffer_free_one (vm, bi0);
+ vlib_error_count (vm, node->node_index,
+ VMXNET3_INPUT_ERROR_RX_PACKET, 1);
+ if (hb && vlib_get_buffer_index (vm, hb) != bi0)
+ {
+ vlib_buffer_free_one (vm, vlib_get_buffer_index (vm, hb));
+ hb = 0;
+ }
+ prev_b0 = 0;
+ continue;
+ }
+
if (rx_comp->index & VMXNET3_RXCI_SOP)
{
+ ASSERT (!(rxd->flags & VMXNET3_RXF_BTYPE));
/* start segment */
hb = b0;
+ bi[0] = bi0;
if (!(rx_comp->index & VMXNET3_RXCI_EOP))
{
hb->flags = VLIB_BUFFER_TOTAL_LENGTH_VALID;
- b0->flags |= VLIB_BUFFER_NEXT_PRESENT;
prev_b0 = b0;
}
else
* Both start and end of packet is set. It is a complete packet
*/
prev_b0 = 0;
+ got_packet = 1;
}
-
}
else if (rx_comp->index & VMXNET3_RXCI_EOP)
{
/* end of segment */
if (prev_b0)
{
- prev_b0->next_buffer = bi[0];
prev_b0->flags |= VLIB_BUFFER_NEXT_PRESENT;
+ prev_b0->next_buffer = bi0;
hb->total_length_not_including_first_buffer +=
b0->current_length;
- prev_b0 = 0; // Get next packet
+ prev_b0 = 0;
+ got_packet = 1;
}
else
{
/* EOP without SOP, error */
- hb = 0;
- bi++;
vlib_error_count (vm, node->node_index,
- VMXNET3_INPUT_ERROR_RX_PACKET, 1);
- vlib_buffer_free_one (vm, bi[0]);
+ VMXNET3_INPUT_ERROR_RX_PACKET_NO_SOP, 1);
+ vlib_buffer_free_one (vm, bi0);
+ if (hb && vlib_get_buffer_index (vm, hb) != bi0)
+ {
+ vlib_buffer_free_one (vm, vlib_get_buffer_index (vm, hb));
+ hb = 0;
+ }
continue;
}
}
else if (prev_b0) // !sop && !eop
{
/* mid chain */
- b0->flags |= VLIB_BUFFER_NEXT_PRESENT;
- prev_b0->next_buffer = bi[0];
+ ASSERT (rxd->flags & VMXNET3_RXF_BTYPE);
+ prev_b0->flags |= VLIB_BUFFER_NEXT_PRESENT;
+ prev_b0->next_buffer = bi0;
prev_b0 = b0;
hb->total_length_not_including_first_buffer += b0->current_length;
}
ASSERT (0);
}
- bi++;
n_rx_bytes += b0->current_length;
- if (!prev_b0)
+ if (got_packet)
{
- next[0] = VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT;
+ ethernet_header_t *e = (ethernet_header_t *) hb->data;
+
+ if (PREDICT_FALSE (vd->per_interface_next_index != ~0))
+ {
+ next_index = vd->per_interface_next_index;
+ known_next = 1;
+ }
+
+ if (PREDICT_FALSE
+ (vnet_device_input_have_features (vd->sw_if_index)))
+ {
+ vnet_feature_start_device_input_x1 (vd->sw_if_index,
+ &next_index, hb);
+ known_next = 1;
+ }
+
+ if (PREDICT_FALSE (known_next))
+ {
+ next[0] = next_index;
+ }
+ else
+ {
+ if (ethernet_frame_is_tagged (e->type))
+ next[0] = VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT;
+ else
+ {
+ if (rx_comp->flags & VMXNET3_RXCF_IP4)
+ {
+ next[0] = VNET_DEVICE_INPUT_NEXT_IP4_NCS_INPUT;
+ hb->flags |= VNET_BUFFER_F_IS_IP4;
+ vlib_buffer_advance (hb,
+ device_input_next_node_advance
+ [next[0]]);
+ }
+ else if (rx_comp->flags & VMXNET3_RXCF_IP6)
+ {
+ next[0] = VNET_DEVICE_INPUT_NEXT_IP6_INPUT;
+ hb->flags |= VNET_BUFFER_F_IS_IP6;
+ vlib_buffer_advance (hb,
+ device_input_next_node_advance
+ [next[0]]);
+ }
+ else
+ {
+ next[0] = VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT;
+ }
+ }
+ }
+
n_rx_packets++;
next++;
+ bi++;
hb = 0;
+ got_packet = 0;
}
}
if (PREDICT_TRUE (n_rx_packets))
{
- clib_error_t *error;
-
vlib_buffer_enqueue_to_next (vm, node, buffer_indices, nexts,
n_rx_packets);
vlib_increment_combined_counter
(vnm->interface_main.combined_sw_if_counters +
VNET_INTERFACE_COUNTER_RX, thread_index,
vd->hw_if_index, n_rx_packets, n_rx_bytes);
+ }
- error = vmxnet3_rxq_refill_ring0 (vm, vd, rxq);
- if (PREDICT_FALSE (error != 0))
- {
- vlib_error_count (vm, node->node_index,
- VMXNET3_INPUT_ERROR_BUFFER_ALLOC, 1);
- }
- error = vmxnet3_rxq_refill_ring1 (vm, vd, rxq);
- if (PREDICT_FALSE (error != 0))
- {
- vlib_error_count (vm, node->node_index,
- VMXNET3_INPUT_ERROR_BUFFER_ALLOC, 1);
- }
+ error = vmxnet3_rxq_refill_ring0 (vm, vd, rxq);
+ if (PREDICT_FALSE (error != 0))
+ {
+ vlib_error_count (vm, node->node_index,
+ VMXNET3_INPUT_ERROR_BUFFER_ALLOC, 1);
+ }
+ error = vmxnet3_rxq_refill_ring1 (vm, vd, rxq);
+ if (PREDICT_FALSE (error != 0))
+ {
+ vlib_error_count (vm, node->node_index,
+ VMXNET3_INPUT_ERROR_BUFFER_ALLOC, 1);
}
return n_rx_packets;
Code Review / vpp.git / blobdiff