#include <vnet/devices/af_packet/af_packet.h>
#include <vnet/devices/virtio/virtio_std.h>
-#define foreach_af_packet_input_error \
- _(PARTIAL_PKT, "partial packet")
-
+#define foreach_af_packet_input_error \
+ _ (PARTIAL_PKT, "partial packet") \
+ _ (TIMEDOUT_BLK, "timed out block") \
+ _ (TOTAL_RECV_BLK, "total received block")
typedef enum
{
#define _(f,s) AF_PACKET_INPUT_ERROR_##f,
{
u32 next_index;
u32 hw_if_index;
+ u16 queue_id;
int block;
u32 pkt_num;
void *block_start;
af_packet_input_trace_t *t = va_arg (*args, af_packet_input_trace_t *);
u32 indent = format_get_indent (s);
- s = format (s, "af_packet: hw_if_index %d next-index %d",
- t->hw_if_index, t->next_index);
+ s = format (s, "af_packet: hw_if_index %d rx-queue %u next-index %d",
+ t->hw_if_index, t->queue_id, t->next_index);
s = format (
s, "\n%Ublock %u:\n%Uaddress %p version %u seq_num %lu pkt_num %u",
always_inline uword
af_packet_device_input_fn (vlib_main_t *vm, vlib_node_runtime_t *node,
vlib_frame_t *frame, af_packet_if_t *apif,
- u8 is_cksum_gso_enabled)
+ u16 queue_id, u8 is_cksum_gso_enabled)
{
af_packet_main_t *apm = &af_packet_main;
+ af_packet_queue_t *rx_queue = vec_elt_at_index (apif->rx_queues, queue_id);
tpacket3_hdr_t *tph;
u32 next_index;
u32 n_free_bufs;
u32 n_rx_packets = 0;
u32 n_rx_bytes = 0;
+ u32 timedout_blk = 0;
+ u32 total = 0;
u32 *to_next = 0;
- u32 block = apif->next_rx_block;
- u32 block_nr = apif->rx_req->tp_block_nr;
+ u32 block = rx_queue->next_rx_block;
+ u32 block_nr = rx_queue->rx_req->tp_block_nr;
u8 *block_start = 0;
uword n_trace = vlib_get_trace_count (vm, node);
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;
+ u32 min_bufs = rx_queue->rx_req->tp_frame_size / n_buffer_bytes;
u32 num_pkts = 0;
u32 rx_frame_offset = 0;
block_desc_t *bd = 0;
vnet_feature_start_device_input_x1 (apif->sw_if_index, &next_index, &bt);
}
- while ((((block_desc_t *) (block_start = apif->rx_ring[block]))
- ->hdr.bh1.block_status &
- TP_STATUS_USER) != 0)
+ if ((((block_desc_t *) (block_start = rx_queue->rx_ring[block]))
+ ->hdr.bh1.block_status &
+ TP_STATUS_USER) != 0)
{
u32 n_required = 0;
+ bd = (block_desc_t *) block_start;
+
+ total++;
- if (PREDICT_FALSE (num_pkts == 0))
+ if (TP_STATUS_BLK_TMO & bd->hdr.bh1.block_status)
+ timedout_blk++;
+
+ if (PREDICT_FALSE (rx_queue->is_rx_pending))
+ {
+ num_pkts = rx_queue->num_rx_pkts;
+ rx_frame_offset = rx_queue->rx_frame_offset;
+ rx_queue->is_rx_pending = 0;
+ }
+ else
{
- bd = (block_desc_t *) block_start;
num_pkts = bd->hdr.bh1.num_pkts;
rx_frame_offset = sizeof (block_desc_t);
}
_vec_len (apm->rx_buffers[thread_index]) = n_free_bufs;
}
- while (num_pkts && (n_free_bufs > min_bufs))
+ while (num_pkts && (n_free_bufs >= min_bufs))
{
u32 next0 = next_index;
u32 n_left_to_next;
vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
- while (num_pkts && n_left_to_next && (n_free_bufs > min_bufs))
+ while (num_pkts && n_left_to_next && (n_free_bufs >= min_bufs))
{
tph = (tpacket3_hdr_t *) (block_start + rx_frame_offset);
(vnet_virtio_net_hdr_t *) ((u8 *) tph + tph->tp_mac -
sizeof (vnet_virtio_net_hdr_t));
+ // save current state and return
if (PREDICT_FALSE (((data_len / n_buffer_bytes) + 1) >
vec_len (apm->rx_buffers[thread_index])))
{
- vec_validate (apm->rx_buffers[thread_index],
- VLIB_FRAME_SIZE + n_free_bufs - 1);
- n_free_bufs += vlib_buffer_alloc (
- vm, &apm->rx_buffers[thread_index][n_free_bufs],
- VLIB_FRAME_SIZE);
- _vec_len (apm->rx_buffers[thread_index]) = n_free_bufs;
+ rx_queue->rx_frame_offset = rx_frame_offset;
+ rx_queue->num_rx_pkts = num_pkts;
+ rx_queue->is_rx_pending = 1;
+ vlib_put_next_frame (vm, node, next_index, n_left_to_next);
+ goto done;
}
while (data_len)
tr = vlib_add_trace (vm, node, first_b0, sizeof (*tr));
tr->next_index = next0;
tr->hw_if_index = apif->hw_if_index;
+ tr->queue_id = queue_id;
tr->block = block;
tr->block_start = bd;
tr->pkt_num = bd->hdr.bh1.num_pkts - num_pkts;
bd->hdr.bh1.block_status = TP_STATUS_KERNEL;
block = (block + 1) % block_nr;
}
+ else
+ {
+ rx_queue->rx_frame_offset = rx_frame_offset;
+ rx_queue->num_rx_pkts = num_pkts;
+ rx_queue->is_rx_pending = 1;
+ }
}
- apif->next_rx_block = block;
+ rx_queue->next_rx_block = block;
+
+done:
+
+ if ((((block_desc_t *) (block_start = rx_queue->rx_ring[block]))
+ ->hdr.bh1.block_status &
+ TP_STATUS_USER) != 0)
+ vlib_node_set_state (vm, node->node_index, VLIB_NODE_STATE_POLLING);
+ else
+ vlib_node_set_state (vm, node->node_index, VLIB_NODE_STATE_INTERRUPT);
+
+ vlib_error_count (vm, node->node_index, AF_PACKET_INPUT_ERROR_TOTAL_RECV_BLK,
+ total);
+ vlib_error_count (vm, node->node_index, AF_PACKET_INPUT_ERROR_TIMEDOUT_BLK,
+ timedout_blk);
+
vlib_increment_combined_counter
(vnet_get_main ()->interface_main.combined_sw_if_counters
+ VNET_INTERFACE_COUNTER_RX,
if (apif->is_admin_up)
{
if (apif->is_cksum_gso_enabled)
- n_rx_packets +=
- af_packet_device_input_fn (vm, node, frame, apif, 1);
+ n_rx_packets += af_packet_device_input_fn (vm, node, frame, apif,
+ pv[i].queue_id, 1);
else
- n_rx_packets +=
- af_packet_device_input_fn (vm, node, frame, apif, 0);
+ n_rx_packets += af_packet_device_input_fn (vm, node, frame, apif,
+ pv[i].queue_id, 0);
}
}
return n_rx_packets;
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