#define AVF_INPUT_REFILL_TRESHOLD 32
static_always_inline void
avf_rxq_refill (vlib_main_t * vm, vlib_node_runtime_t * node, avf_rxq_t * rxq,
- int use_iova)
+ int use_va_dma)
{
u16 n_refill, mask, n_alloc, slot;
u32 s0, s1, s2, s3;
+ vlib_buffer_t *b[4];
avf_rx_desc_t *d[4];
- n_refill = rxq->size - 1 - rxq->n_bufs;
+ n_refill = rxq->size - 1 - rxq->n_enqueued;
if (PREDICT_TRUE (n_refill <= AVF_INPUT_REFILL_TRESHOLD))
return;
vlib_error_count (vm, node->node_index,
AVF_INPUT_ERROR_BUFFER_ALLOC, 1);
if (n_alloc)
- vlib_buffer_free (vm, rxq->bufs + slot, n_alloc);
+ vlib_buffer_free_from_ring (vm, rxq->bufs, slot, rxq->size, n_alloc);
return;
}
- rxq->n_bufs += n_alloc;
+ rxq->n_enqueued += n_alloc;
while (n_alloc >= 4)
{
d[1] = ((avf_rx_desc_t *) rxq->descs) + s1;
d[2] = ((avf_rx_desc_t *) rxq->descs) + s2;
d[3] = ((avf_rx_desc_t *) rxq->descs) + s3;
- if (use_iova)
+ b[0] = vlib_get_buffer (vm, rxq->bufs[s0]);
+ b[1] = vlib_get_buffer (vm, rxq->bufs[s1]);
+ b[2] = vlib_get_buffer (vm, rxq->bufs[s2]);
+ b[3] = vlib_get_buffer (vm, rxq->bufs[s3]);
+
+ if (use_va_dma)
{
- vlib_buffer_t *b;
- b = vlib_get_buffer (vm, rxq->bufs[s0]);
- d[0]->qword[0] = pointer_to_uword (b->data);
- b = vlib_get_buffer (vm, rxq->bufs[s1]);
- d[1]->qword[0] = pointer_to_uword (b->data);
- b = vlib_get_buffer (vm, rxq->bufs[s2]);
- d[2]->qword[0] = pointer_to_uword (b->data);
- b = vlib_get_buffer (vm, rxq->bufs[s3]);
- d[3]->qword[0] = pointer_to_uword (b->data);
+ d[0]->qword[0] = vlib_buffer_get_va (b[0]);
+ d[1]->qword[0] = vlib_buffer_get_va (b[1]);
+ d[2]->qword[0] = vlib_buffer_get_va (b[2]);
+ d[3]->qword[0] = vlib_buffer_get_va (b[3]);
}
else
{
- d[0]->qword[0] =
- vlib_get_buffer_data_physical_address (vm, rxq->bufs[s0]);
- d[1]->qword[0] =
- vlib_get_buffer_data_physical_address (vm, rxq->bufs[s1]);
- d[2]->qword[0] =
- vlib_get_buffer_data_physical_address (vm, rxq->bufs[s2]);
- d[3]->qword[0] =
- vlib_get_buffer_data_physical_address (vm, rxq->bufs[s3]);
+ d[0]->qword[0] = vlib_buffer_get_pa (vm, b[0]);
+ d[1]->qword[0] = vlib_buffer_get_pa (vm, b[1]);
+ d[2]->qword[0] = vlib_buffer_get_pa (vm, b[2]);
+ d[3]->qword[0] = vlib_buffer_get_pa (vm, b[3]);
}
d[0]->qword[1] = 0;
{
s0 = slot;
d[0] = ((avf_rx_desc_t *) rxq->descs) + s0;
- if (use_iova)
- {
- vlib_buffer_t *b = vlib_get_buffer (vm, rxq->bufs[s0]);
- d[0]->qword[0] = pointer_to_uword (b->data);
- }
+ b[0] = vlib_get_buffer (vm, rxq->bufs[s0]);
+ if (use_va_dma)
+ d[0]->qword[0] = vlib_buffer_get_va (b[0]);
else
- d[0]->qword[0] =
- vlib_get_buffer_data_physical_address (vm, rxq->bufs[s0]);
+ d[0]->qword[0] = vlib_buffer_get_pa (vm, b[0]);
d[0]->qword[1] = 0;
/* next */
*(rxq->qrx_tail) = slot;
}
-static_always_inline void
-avf_check_for_error (vlib_node_runtime_t * node, avf_rx_vector_entry_t * rxve,
- vlib_buffer_t * b, u16 * next)
-{
- avf_main_t *am = &avf_main;
- avf_ptype_t *ptype;
- if (PREDICT_FALSE (rxve->error))
- {
- b->error = node->errors[AVF_INPUT_ERROR_RX_PACKET_ERROR];
- ptype = am->ptypes + rxve->ptype;
- /* retract */
- vlib_buffer_advance (b, --ptype->buffer_advance);
- *next = VNET_DEVICE_INPUT_NEXT_DROP;
- }
-}
-
-static_always_inline u32
-avf_find_next (avf_rx_vector_entry_t * rxve, vlib_buffer_t * b,
- int maybe_tagged)
-{
- avf_main_t *am = &avf_main;
- ethernet_header_t *e = (ethernet_header_t *) b->data;
- avf_ptype_t *ptype;
- if (maybe_tagged && ethernet_frame_is_tagged (e->type))
- return VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT;
- ptype = am->ptypes + rxve->ptype;
- vlib_buffer_advance (b, ptype->buffer_advance);
- b->flags |= ptype->flags;
- return ptype->next_node;
-}
-
-
static_always_inline uword
avf_process_rx_burst (vlib_main_t * vm, vlib_node_runtime_t * node,
vlib_buffer_t * bt, avf_rx_vector_entry_t * rxve,
- vlib_buffer_t ** b, u16 * next, u32 n_rxv,
- u8 maybe_error, int known_next)
+ vlib_buffer_t ** b, u32 n_rxv)
{
uword n_rx_bytes = 0;
vlib_prefetch_buffer_header (b[9], LOAD);
vlib_prefetch_buffer_header (b[10], LOAD);
vlib_prefetch_buffer_header (b[11], LOAD);
- if (!known_next)
- {
- CLIB_PREFETCH (b[8]->data, CLIB_CACHE_LINE_BYTES, LOAD);
- CLIB_PREFETCH (b[9]->data, CLIB_CACHE_LINE_BYTES, LOAD);
- CLIB_PREFETCH (b[10]->data, CLIB_CACHE_LINE_BYTES, LOAD);
- CLIB_PREFETCH (b[11]->data, CLIB_CACHE_LINE_BYTES, LOAD);
- }
}
n_rx_bytes += b[0]->current_length = rxve[0].length;
n_rx_bytes += b[2]->current_length = rxve[2].length;
n_rx_bytes += b[3]->current_length = rxve[3].length;
- if (!known_next)
- {
- ethernet_header_t *e0, *e1, *e2, *e3;
-
- e0 = (ethernet_header_t *) b[0]->data;
- e1 = (ethernet_header_t *) b[1]->data;
- e2 = (ethernet_header_t *) b[2]->data;
- e3 = (ethernet_header_t *) b[3]->data;
-
- if (ethernet_frame_is_any_tagged_x4 (e0->type, e1->type,
- e2->type, e3->type))
- {
- next[0] = avf_find_next (rxve, b[0], 1);
- next[1] = avf_find_next (rxve + 1, b[1], 1);
- next[2] = avf_find_next (rxve + 2, b[2], 1);
- next[3] = avf_find_next (rxve + 3, b[3], 1);
- }
- else
- {
- next[0] = avf_find_next (rxve, b[0], 0);
- next[1] = avf_find_next (rxve + 1, b[1], 0);
- next[2] = avf_find_next (rxve + 2, b[2], 0);
- next[3] = avf_find_next (rxve + 3, b[3], 0);
- }
-
- if (PREDICT_FALSE (maybe_error))
- {
- avf_check_for_error (node, rxve + 0, b[0], next);
- avf_check_for_error (node, rxve + 1, b[1], next + 1);
- avf_check_for_error (node, rxve + 2, b[2], next + 2);
- avf_check_for_error (node, rxve + 3, b[3], next + 3);
- }
- }
- else if (bt->current_config_index)
- {
- b[0]->current_config_index = bt->current_config_index;
- b[1]->current_config_index = bt->current_config_index;
- b[2]->current_config_index = bt->current_config_index;
- b[3]->current_config_index = bt->current_config_index;
- vnet_buffer (b[0])->feature_arc_index =
- vnet_buffer (bt)->feature_arc_index;
- vnet_buffer (b[1])->feature_arc_index =
- vnet_buffer (bt)->feature_arc_index;
- vnet_buffer (b[2])->feature_arc_index =
- vnet_buffer (bt)->feature_arc_index;
- vnet_buffer (b[3])->feature_arc_index =
- vnet_buffer (bt)->feature_arc_index;
- }
-
- clib_memcpy (vnet_buffer (b[0])->sw_if_index,
- vnet_buffer (bt)->sw_if_index, 2 * sizeof (u32));
- clib_memcpy (vnet_buffer (b[1])->sw_if_index,
- vnet_buffer (bt)->sw_if_index, 2 * sizeof (u32));
- clib_memcpy (vnet_buffer (b[2])->sw_if_index,
- vnet_buffer (bt)->sw_if_index, 2 * sizeof (u32));
- clib_memcpy (vnet_buffer (b[3])->sw_if_index,
- vnet_buffer (bt)->sw_if_index, 2 * sizeof (u32));
+ clib_memcpy_fast (vnet_buffer (b[0])->sw_if_index,
+ vnet_buffer (bt)->sw_if_index, 2 * sizeof (u32));
+ clib_memcpy_fast (vnet_buffer (b[1])->sw_if_index,
+ vnet_buffer (bt)->sw_if_index, 2 * sizeof (u32));
+ clib_memcpy_fast (vnet_buffer (b[2])->sw_if_index,
+ vnet_buffer (bt)->sw_if_index, 2 * sizeof (u32));
+ clib_memcpy_fast (vnet_buffer (b[3])->sw_if_index,
+ vnet_buffer (bt)->sw_if_index, 2 * sizeof (u32));
VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b[0]);
VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b[1]);
/* next */
rxve += 4;
b += 4;
- next += 4;
n_rxv -= 4;
}
while (n_rxv)
b[0]->current_length = rxve->length;
n_rx_bytes += b[0]->current_length;
- if (!known_next)
- {
- next[0] = avf_find_next (rxve, b[0], 1);
- avf_check_for_error (node, rxve + 0, b[0], next);
- }
- else if (bt->current_config_index)
- {
- b[0]->current_config_index = bt->current_config_index;
- vnet_buffer (b[0])->feature_arc_index =
- vnet_buffer (bt)->feature_arc_index;
- }
-
- clib_memcpy (vnet_buffer (b[0])->sw_if_index,
- vnet_buffer (bt)->sw_if_index, 2 * sizeof (u32));
+ clib_memcpy_fast (vnet_buffer (b[0])->sw_if_index,
+ vnet_buffer (bt)->sw_if_index, 2 * sizeof (u32));
- VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b0);
+ VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b[0]);
/* next */
rxve += 1;
b += 1;
- next += 1;
n_rxv -= 1;
-
}
return n_rx_bytes;
}
u32 n_rx_packets = 0, n_rx_bytes = 0;
u16 mask = rxq->size - 1;
u16 n_rxv = 0;
- u8 maybe_error = 0;
- u32 buffer_indices[AVF_RX_VECTOR_SZ], *bi;
- u16 nexts[AVF_RX_VECTOR_SZ], *next;
+ u8 or_error = 0;
+ u32 *bi;
vlib_buffer_t *bufs[AVF_RX_VECTOR_SZ];
vlib_buffer_t *bt = &ptd->buffer_template;
- int known_next = 0;
u32 next_index = VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT;
STATIC_ASSERT_SIZEOF (avf_rx_vector_entry_t, 8);
STATIC_ASSERT_OFFSET_OF (avf_rx_vector_entry_t, ptype, 6);
STATIC_ASSERT_OFFSET_OF (avf_rx_vector_entry_t, error, 7);
+ /* is there anything on the ring */
+ d = rxq->descs + rxq->next;
+ if ((d->qword[1] & AVF_RX_DESC_STATUS_DD) == 0)
+ goto done;
+
+ u32 *to_next, n_left_to_next;
+ if (PREDICT_FALSE (ad->per_interface_next_index != ~0))
+ next_index = ad->per_interface_next_index;
+ vlib_get_new_next_frame (vm, node, next_index, to_next, n_left_to_next);
+
/* fetch up to AVF_RX_VECTOR_SZ from the rx ring, unflatten them and
copy needed data from descriptor to rx vector */
- d = rxq->descs + rxq->next;
- bi = buffer_indices;
+ bi = to_next;
while (n_rxv < AVF_RX_VECTOR_SZ)
{
if (rxq->next + 11 < rxq->size)
{
int stride = 8;
- CLIB_PREFETCH (rxq->descs + (rxq->next + stride),
+ CLIB_PREFETCH ((void *) (rxq->descs + (rxq->next + stride)),
CLIB_CACHE_LINE_BYTES, LOAD);
- CLIB_PREFETCH (rxq->descs + (rxq->next + stride + 1),
+ CLIB_PREFETCH ((void *) (rxq->descs + (rxq->next + stride + 1)),
CLIB_CACHE_LINE_BYTES, LOAD);
- CLIB_PREFETCH (rxq->descs + (rxq->next + stride + 2),
+ CLIB_PREFETCH ((void *) (rxq->descs + (rxq->next + stride + 2)),
CLIB_CACHE_LINE_BYTES, LOAD);
- CLIB_PREFETCH (rxq->descs + (rxq->next + stride + 3),
+ CLIB_PREFETCH ((void *) (rxq->descs + (rxq->next + stride + 3)),
CLIB_CACHE_LINE_BYTES, LOAD);
}
v |= err4 = (q1x4 << 37) & u64x4_splat ((u64) 0xFF << 56);
u64x4_store_unaligned (v, ptd->rx_vector + n_rxv);
- maybe_error |= !u64x4_is_all_zero (err4);
- clib_memcpy (bi, rxq->bufs + rxq->next, 4 * sizeof (u32));
+ if (!u64x4_is_all_zero (err4))
+ or_error |= err4[0] | err4[1] | err4[2] | err4[3];
+
+ clib_memcpy_fast (bi, rxq->bufs + rxq->next, 4 * sizeof (u32));
/* next */
rxq->next = (rxq->next + 4) & mask;
d = rxq->descs + rxq->next;
n_rxv += 4;
- rxq->n_bufs -= 4;
+ rxq->n_enqueued -= 4;
bi += 4;
continue;
one_by_one:
#endif
- CLIB_PREFETCH (rxq->descs + ((rxq->next + 8) & mask),
+ CLIB_PREFETCH ((void *) (rxq->descs + ((rxq->next + 8) & mask)),
CLIB_CACHE_LINE_BYTES, LOAD);
if ((d->qword[1] & AVF_RX_DESC_STATUS_DD) == 0)
break;
rxve = ptd->rx_vector + n_rxv;
bi[0] = rxq->bufs[rxq->next];
- rxve->status = avf_get_u64_bits (d, 8, 18, 0);
- rxve->error = avf_get_u64_bits (d, 8, 26, 19);
- rxve->ptype = avf_get_u64_bits (d, 8, 37, 30);
- rxve->length = avf_get_u64_bits (d, 8, 63, 38);
- maybe_error |= rxve->error;
+ rxve->status = avf_get_u64_bits ((void *) d, 8, 18, 0);
+ rxve->error = avf_get_u64_bits ((void *) d, 8, 26, 19);
+ rxve->ptype = avf_get_u64_bits ((void *) d, 8, 37, 30);
+ rxve->length = avf_get_u64_bits ((void *) d, 8, 63, 38);
+ or_error |= rxve->error;
/* deal with chained buffers */
while (PREDICT_FALSE ((d->qword[1] & AVF_RX_DESC_STATUS_EOP) == 0))
rxq->next = (rxq->next + 1) & mask;
d = rxq->descs + rxq->next;
n_rxv++;
- rxq->n_bufs--;
+ rxq->n_enqueued--;
bi++;
}
goto done;
/* refill rx ring */
- if (ad->flags & AVF_DEVICE_F_IOVA)
- avf_rxq_refill (vm, node, rxq, 1 /* use_iova */ );
+ if (ad->flags & AVF_DEVICE_F_VA_DMA)
+ avf_rxq_refill (vm, node, rxq, 1 /* use_va_dma */ );
else
- avf_rxq_refill (vm, node, rxq, 0 /* use_iova */ );
+ avf_rxq_refill (vm, node, rxq, 0 /* use_va_dma */ );
- vlib_get_buffers (vm, buffer_indices, bufs, n_rxv);
+ vlib_get_buffers (vm, to_next, bufs, n_rxv);
n_rx_packets = n_rxv;
vnet_buffer (bt)->sw_if_index[VLIB_RX] = ad->sw_if_index;
vnet_buffer (bt)->sw_if_index[VLIB_TX] = ~0;
- /* receive burst of packets from DPDK PMD */
- if (PREDICT_FALSE (ad->per_interface_next_index != ~0))
- {
- known_next = 1;
- next_index = ad->per_interface_next_index;
- }
-
- /* as all packets belong to thr same interface feature arc lookup
- can be don once and result stored */
- if (PREDICT_FALSE (vnet_device_input_have_features (ad->sw_if_index)))
- {
- vnet_feature_start_device_input_x1 (ad->sw_if_index, &next_index, bt);
- known_next = 1;
- }
-
- if (known_next)
- {
- clib_memset_u16 (nexts, next_index, n_rxv);
- n_rx_bytes = avf_process_rx_burst (vm, node, bt, ptd->rx_vector, bufs,
- nexts, n_rxv, maybe_error, 1);
- vnet_buffer (bt)->feature_arc_index = 0;
- bt->current_config_index = 0;
- }
- else
- n_rx_bytes = avf_process_rx_burst (vm, node, bt, ptd->rx_vector, bufs,
- nexts, n_rxv, maybe_error, 0);
+ n_rx_bytes = avf_process_rx_burst (vm, node, bt, ptd->rx_vector, bufs,
+ n_rxv);
/* packet trace if enabled */
if (PREDICT_FALSE ((n_trace = vlib_get_trace_count (vm, node))))
{
u32 n_left = n_rx_packets;
- bi = buffer_indices;
- next = nexts;
+ bi = to_next;
while (n_trace && n_left)
{
vlib_buffer_t *b;
avf_input_trace_t *tr;
b = vlib_get_buffer (vm, bi[0]);
- vlib_trace_buffer (vm, node, next[0], b, /* follow_chain */ 0);
+ vlib_trace_buffer (vm, node, next_index, b, /* follow_chain */ 0);
tr = vlib_add_trace (vm, node, b, sizeof (*tr));
- tr->next_index = next[0];
+ tr->next_index = next_index;
tr->hw_if_index = ad->hw_if_index;
- clib_memcpy (&tr->rxve, rxve, sizeof (avf_rx_vector_entry_t));
+ clib_memcpy_fast (&tr->rxve, rxve, sizeof (avf_rx_vector_entry_t));
/* next */
n_trace--;
n_left--;
bi++;
- next++;
}
vlib_set_trace_count (vm, node, n_trace);
}
- vlib_buffer_enqueue_to_next (vm, node, buffer_indices, nexts, n_rx_packets);
+
+ if (PREDICT_TRUE (next_index == VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT))
+ {
+ vlib_next_frame_t *nf;
+ vlib_frame_t *f;
+ ethernet_input_frame_t *ef;
+ nf = vlib_node_runtime_get_next_frame (vm, node, next_index);
+ f = vlib_get_frame (vm, nf->frame_index);
+ f->flags = ETH_INPUT_FRAME_F_SINGLE_SW_IF_IDX;
+
+ ef = vlib_frame_scalar_args (f);
+ ef->sw_if_index = ad->sw_if_index;
+ ef->hw_if_index = ad->hw_if_index;
+
+ if ((or_error & (1 << 3)) == 0)
+ f->flags |= ETH_INPUT_FRAME_F_IP4_CKSUM_OK;
+ }
+ n_left_to_next -= n_rx_packets;
+ vlib_put_next_frame (vm, node, next_index, n_left_to_next);
+
vlib_increment_combined_counter (vnm->interface_main.combined_sw_if_counters
+ VNET_INTERFACE_COUNTER_RX, thr_idx,
ad->hw_if_index, n_rx_packets, n_rx_bytes);
return n_rx;
}
-#ifndef CLIB_MARCH_VARIANT
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (avf_input_node) = {
.name = "avf-input",
.n_errors = AVF_INPUT_N_ERROR,
.error_strings = avf_input_error_strings,
};
-#endif
/* *INDENT-ON* */