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);
+ u16 nexts[MEMIF_RX_VECTOR_SZ], *next = nexts;
+ u32 _to_next_bufs[MEMIF_RX_VECTOR_SZ], *to_next_bufs = _to_next_bufs, *bi;
u32 n_rx_packets = 0, n_rx_bytes = 0;
- u32 n_left, *to_next = 0;
- u32 bi0, bi1, bi2, bi3;
+ u32 n_left, n_left_to_next, next_index;
vlib_buffer_t *b0, *b1, *b2, *b3;
- u32 thread_index = vlib_get_thread_index ();
+ u32 thread_index = vm->thread_index;
memif_per_thread_data_t *ptd = vec_elt_at_index (mm->per_thread_data,
thread_index);
vlib_buffer_t *bt = &ptd->buffer_template;
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;
b2 = vlib_get_buffer (vm, ptd->buffers[co[2].buffer_vec_index]);
b3 = vlib_get_buffer (vm, ptd->buffers[co[3].buffer_vec_index]);
- clib_memcpy (b0->data + co[0].buffer_offset, co[0].data,
- co[0].data_len);
- clib_memcpy (b1->data + co[1].buffer_offset, co[1].data,
- co[1].data_len);
- clib_memcpy (b2->data + co[2].buffer_offset, co[2].data,
- co[2].data_len);
- clib_memcpy (b3->data + co[3].buffer_offset, co[3].data,
- co[3].data_len);
+ clib_memcpy_fast (b0->data + co[0].buffer_offset, co[0].data,
+ co[0].data_len);
+ clib_memcpy_fast (b1->data + co[1].buffer_offset, co[1].data,
+ co[1].data_len);
+ clib_memcpy_fast (b2->data + co[2].buffer_offset, co[2].data,
+ co[2].data_len);
+ clib_memcpy_fast (b3->data + co[3].buffer_offset, co[3].data,
+ co[3].data_len);
co += 4;
n_left -= 4;
while (n_left)
{
b0 = vlib_get_buffer (vm, ptd->buffers[co[0].buffer_vec_index]);
- clib_memcpy (b0->data + co[0].buffer_offset, co[0].data,
- co[0].data_len);
+ clib_memcpy_fast (b0->data + co[0].buffer_offset, co[0].data,
+ co[0].data_len);
co += 1;
n_left -= 1;
}
mq->last_tail = cur_slot;
}
- u32 n_from = n_rx_packets;
- po = ptd->packet_ops;
-
+ /* 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)
+ 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);
+
+ vlib_get_new_next_frame (vm, node, next_index, to_next_bufs,
+ n_left_to_next);
+ if (PREDICT_TRUE (next_index == VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT))
{
- 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;
- b1->current_length = po[1].packet_len;
- b2->current_length = po[2].packet_len;
- b3->current_length = po[3].packet_len;
-
- 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);
- }
-
- /* enqueue */
- vlib_validate_buffer_enqueue_x4 (vm, node, next_index, to_next,
- n_left_to_next, bi0, bi1, bi2, bi3,
- next0, next1, next2, next3);
-
- /* next */
- n_from -= 4;
- po += 4;
+ 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 = mif->sw_if_index;
+ ef->hw_if_index = mif->hw_if_index;
}
- while (n_from && n_left_to_next)
- {
- /* 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;
+ }
- memif_add_to_chain (vm, b0, ptd->buffers + fbvi0 + 1, buffer_size);
+ /* process buffer metadata */
+ u32 n_from = n_rx_packets;
+ po = ptd->packet_ops;
+ bi = to_next_bufs;
- 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);
- }
+ 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)
+ {
+ 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_fast (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_bufs;
+ next = nexts;
+ u32 ni = next_index;
+ while (n_trace && n_left)
+ {
+ vlib_buffer_t *b;
+ memif_input_trace_t *tr;
+ if (mode != MEMIF_INTERFACE_MODE_ETHERNET)
+ ni = next[0];
+ b = vlib_get_buffer (vm, bi[0]);
+ vlib_trace_buffer (vm, node, ni, b, /* follow_chain */ 0);
+ tr = vlib_add_trace (vm, node, b, sizeof (*tr));
+ tr->next_index = ni;
+ tr->hw_if_index = mif->hw_if_index;
+ tr->ring = qid;
/* next */
- n_from--;
- po++;
+ n_trace--;
+ n_left--;
+ bi++;
+ next++;
}
+ vlib_set_trace_count (vm, node, n_trace);
+ }
+
+ if (mode == MEMIF_INTERFACE_MODE_ETHERNET)
+ {
+ n_left_to_next -= n_rx_packets;
vlib_put_next_frame (vm, node, next_index, n_left_to_next);
}
+ else
+ vlib_buffer_enqueue_to_next (vm, node, to_next_bufs, nexts, n_rx_packets);
vlib_increment_combined_counter (vnm->interface_main.combined_sw_if_counters
+ VNET_INTERFACE_COUNTER_RX, thread_index,
u32 n_rx_packets = 0, n_rx_bytes = 0;
u32 *to_next = 0, *buffers;
u32 bi0, bi1, bi2, bi3;
+ u16 s0, s1, s2, s3;
+ memif_desc_t *d0, *d1, *d2, *d3;
vlib_buffer_t *b0, *b1, *b2, *b3;
- u32 thread_index = vlib_get_thread_index ();
+ u32 thread_index = vm->thread_index;
memif_per_thread_data_t *ptd = vec_elt_at_index (mm->per_thread_data,
thread_index);
- vlib_buffer_t *bt = &ptd->buffer_template;
u16 cur_slot, last_slot, ring_size, n_slots, mask, head;
i16 start_offset;
u32 buffer_length;
- u16 n_alloc;
+ u16 n_alloc, n_from;
mq = vec_elt_at_index (mif->rx_queues, qid);
ring = mq->ring;
CLIB_CACHE_LINE_BYTES);
while (n_slots && n_rx_packets < MEMIF_RX_VECTOR_SZ)
{
- u16 s0;
- memif_desc_t *d0;
vlib_buffer_t *hb;
s0 = cur_slot & mask;
hb = b0 = vlib_get_buffer (vm, bi0);
b0->current_data = start_offset;
b0->current_length = start_offset + d0->length;
-
+ n_rx_bytes += d0->length;
if (0 && memif_desc_is_invalid (mif, d0, buffer_length))
return 0;
d0 = &ring->desc[s0];
bi0 = mq->buffers[s0];
- /*previous buffer */
+ /* previous buffer */
b0->next_buffer = bi0;
b0->flags |= VLIB_BUFFER_NEXT_PRESENT;
b0->current_data = start_offset;
b0->current_length = start_offset + d0->length;
hb->total_length_not_including_first_buffer += d0->length;
+ n_rx_bytes += d0->length;
cur_slot++;
n_slots--;
/* release slots from the ring */
mq->last_tail = cur_slot;
- u32 n_from = n_rx_packets;
-
- vnet_buffer (bt)->sw_if_index[VLIB_RX] = mif->sw_if_index;
-
+ n_from = n_rx_packets;
buffers = ptd->buffers;
while (n_from)
head = ring->head;
n_slots = ring_size - head + mq->last_tail;
- if (n_slots < 8)
+ if (n_slots < 32)
goto done;
memif_desc_t *dt = &ptd->desc_template;
- memset (dt, 0, sizeof (memif_desc_t));
- dt->length = VLIB_BUFFER_DEFAULT_FREE_LIST_BYTES - start_offset;
+ clib_memset (dt, 0, sizeof (memif_desc_t));
+ dt->length = buffer_length;
n_alloc = vlib_buffer_alloc_to_ring (vm, mq->buffers, head & mask,
ring_size, n_slots);
MEMIF_INPUT_ERROR_BUFFER_ALLOC_FAIL, 1);
}
- while (n_alloc--)
+ while (n_alloc >= 32)
+ {
+ bi0 = mq->buffers[(head + 4) & mask];
+ vlib_prefetch_buffer_with_index (vm, bi0, LOAD);
+ bi1 = mq->buffers[(head + 5) & mask];
+ vlib_prefetch_buffer_with_index (vm, bi1, LOAD);
+ bi2 = mq->buffers[(head + 6) & mask];
+ vlib_prefetch_buffer_with_index (vm, bi2, LOAD);
+ bi3 = mq->buffers[(head + 7) & mask];
+ vlib_prefetch_buffer_with_index (vm, bi3, LOAD);
+
+ s0 = head++ & mask;
+ s1 = head++ & mask;
+ s2 = head++ & mask;
+ s3 = head++ & mask;
+
+ d0 = &ring->desc[s0];
+ d1 = &ring->desc[s1];
+ d2 = &ring->desc[s2];
+ d3 = &ring->desc[s3];
+
+ clib_memcpy_fast (d0, dt, sizeof (memif_desc_t));
+ clib_memcpy_fast (d1, dt, sizeof (memif_desc_t));
+ clib_memcpy_fast (d2, dt, sizeof (memif_desc_t));
+ clib_memcpy_fast (d3, dt, sizeof (memif_desc_t));
+
+ b0 = vlib_get_buffer (vm, mq->buffers[s0]);
+ b1 = vlib_get_buffer (vm, mq->buffers[s1]);
+ b2 = vlib_get_buffer (vm, mq->buffers[s2]);
+ b3 = vlib_get_buffer (vm, mq->buffers[s3]);
+
+ d0->region = b0->buffer_pool_index + 1;
+ d1->region = b1->buffer_pool_index + 1;
+ d2->region = b2->buffer_pool_index + 1;
+ d3->region = b3->buffer_pool_index + 1;
+
+ d0->offset =
+ (void *) b0->data - mif->regions[d0->region].shm + start_offset;
+ d1->offset =
+ (void *) b1->data - mif->regions[d1->region].shm + start_offset;
+ d2->offset =
+ (void *) b2->data - mif->regions[d2->region].shm + start_offset;
+ d3->offset =
+ (void *) b3->data - mif->regions[d3->region].shm + start_offset;
+
+ n_alloc -= 4;
+ }
+ while (n_alloc)
{
- u16 s = head++ & mask;
- memif_desc_t *d = &ring->desc[s];
- clib_memcpy (d, dt, sizeof (memif_desc_t));
- b0 = vlib_get_buffer (vm, mq->buffers[s]);
- d->region = b0->buffer_pool_index + 1;
- d->offset =
- (void *) b0->data - mif->regions[d->region].shm + start_offset;
+ s0 = head++ & mask;
+ d0 = &ring->desc[s0];
+ clib_memcpy_fast (d0, dt, sizeof (memif_desc_t));
+ b0 = vlib_get_buffer (vm, mq->buffers[s0]);
+ d0->region = b0->buffer_pool_index + 1;
+ d0->offset =
+ (void *) b0->data - mif->regions[d0->region].shm + start_offset;
+
+ n_alloc -= 1;
}
CLIB_MEMORY_STORE_BARRIER ();
return n_rx_packets;
}
-uword
-CLIB_MULTIARCH_FN (memif_input_fn) (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
+
+VLIB_NODE_FN (memif_input_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
{
u32 n_rx = 0;
memif_main_t *mm = &memif_main;
n_rx += memif_device_input_zc_inline (vm, node, frame, mif,
dq->queue_id, mode_eth);
}
- if (mif->flags & MEMIF_IF_FLAG_IS_SLAVE)
+ else if (mif->flags & MEMIF_IF_FLAG_IS_SLAVE)
{
if (mif->mode == MEMIF_INTERFACE_MODE_IP)
n_rx += memif_device_input_inline (vm, node, frame, mif,
return n_rx;
}
-#ifndef CLIB_MULTIARCH_VARIANT
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (memif_input_node) = {
- .function = memif_input_fn,
.name = "memif-input",
.sibling_of = "device-input",
.format_trace = format_memif_input_trace,
.error_strings = memif_input_error_strings,
};
-vlib_node_function_t __clib_weak memif_input_fn_avx512;
-vlib_node_function_t __clib_weak memif_input_fn_avx2;
-
-#if __x86_64__
-static void __clib_constructor
-memif_input_multiarch_select (void)
-{
- if (memif_input_fn_avx512 && clib_cpu_supports_avx512f ())
- memif_input_node.function = memif_input_fn_avx512;
- else if (memif_input_fn_avx2 && clib_cpu_supports_avx2 ())
- memif_input_node.function = memif_input_fn_avx2;
-}
-#endif
-#endif
-
/* *INDENT-ON* */
Code Review / vpp.git / blobdiff