}
}
+static_always_inline u32
+sat_sub (u32 x, u32 y)
+{
+ u32 res = x - y;
+ res &= -(res <= x);
+ return res;
+}
+
+/* branchless validation of the descriptor - uses saturated subtraction */
+static_always_inline u32
+memif_desc_is_invalid (memif_if_t * mif, memif_desc_t * d, u32 buffer_length)
+{
+ u32 rv;
+ u16 valid_flags = MEMIF_DESC_FLAG_NEXT;
+
+ rv = d->flags & (~valid_flags);
+ rv |= sat_sub (d->region + 1, vec_len (mif->regions));
+ rv |= sat_sub (d->length, buffer_length);
+ rv |= sat_sub (d->offset + d->length, mif->regions[d->region].region_size);
+
+ if (PREDICT_FALSE (rv))
+ {
+ mif->flags |= MEMIF_IF_FLAG_ERROR;
+ return 1;
+ }
+
+ return 0;
+}
+
static_always_inline uword
memif_device_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
vlib_frame_t * frame, memif_if_t * mif,
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;
-
/* for S2M rings, we are consumers of packet buffers, and for M2S rings we
are producers of empty buffers */
cur_slot = (type == MEMIF_RING_S2M) ? mq->last_head : mq->last_tail;
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;
}
+ /* 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;
+
+ if (mode == MEMIF_INTERFACE_MODE_ETHERNET)
+ {
+ 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))
+ {
+ 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;
+ }
+ }
+
+ /* process buffer metadata */
u32 n_from = n_rx_packets;
po = ptd->packet_ops;
+ bi = to_next_bufs;
- vnet_buffer (bt)->sw_if_index[VLIB_RX] = mif->sw_if_index;
- bt->current_data = start_offset;
+ 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);
+ }
+
+ /* next */
+ n_from -= 1;
+ po += 1;
+ bi += 1;
+ next += 1;
+ }
+
+ /* 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_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,
+ mif->hw_if_index, n_rx_packets,
+ n_rx_bytes);
+
+ /* refill ring with empty buffers */
+refill:
+ vec_reset_length (ptd->buffers);
+ vec_reset_length (ptd->copy_ops);
+
+ if (type == MEMIF_RING_M2S)
+ {
+ u16 head = ring->head;
+ n_slots = ring_size - head + mq->last_tail;
+
+ while (n_slots--)
+ {
+ u16 s = head++ & mask;
+ memif_desc_t *d = &ring->desc[s];
+ d->length = mif->run.buffer_size;
+ }
+
+ CLIB_MEMORY_STORE_BARRIER ();
+ ring->head = head;
+ }
+
+ return n_rx_packets;
+}
+
+static_always_inline uword
+memif_device_input_zc_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
+ vlib_frame_t * frame, memif_if_t * mif,
+ u16 qid, memif_interface_mode_t mode)
+{
+ vnet_main_t *vnm = vnet_get_main ();
+ memif_main_t *mm = &memif_main;
+ memif_ring_t *ring;
+ memif_queue_t *mq;
+ u32 next_index;
+ uword n_trace = vlib_get_trace_count (vm, node);
+ 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 = vm->thread_index;
+ memif_per_thread_data_t *ptd = vec_elt_at_index (mm->per_thread_data,
+ thread_index);
+ u16 cur_slot, last_slot, ring_size, n_slots, mask, head;
+ i16 start_offset;
+ u32 buffer_length;
+ u16 n_alloc, n_from;
+
+ mq = vec_elt_at_index (mif->rx_queues, qid);
+ ring = mq->ring;
+ 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;
+ buffer_length = VLIB_BUFFER_DEFAULT_FREE_LIST_BYTES - start_offset;
+
+ cur_slot = mq->last_tail;
+ last_slot = ring->tail;
+ if (cur_slot == last_slot)
+ goto refill;
+ n_slots = last_slot - cur_slot;
+
+ /* process ring slots */
+ vec_validate_aligned (ptd->buffers, MEMIF_RX_VECTOR_SZ,
+ CLIB_CACHE_LINE_BYTES);
+ while (n_slots && n_rx_packets < MEMIF_RX_VECTOR_SZ)
+ {
+ vlib_buffer_t *hb;
+
+ s0 = cur_slot & mask;
+ bi0 = mq->buffers[s0];
+ ptd->buffers[n_rx_packets++] = bi0;
+
+ CLIB_PREFETCH (&ring->desc[(cur_slot + 8) & mask],
+ CLIB_CACHE_LINE_BYTES, LOAD);
+ d0 = &ring->desc[s0];
+ 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;
+
+ cur_slot++;
+ n_slots--;
+ if (PREDICT_FALSE ((d0->flags & MEMIF_DESC_FLAG_NEXT) && n_slots))
+ {
+ hb->flags |= VLIB_BUFFER_TOTAL_LENGTH_VALID;
+ next_slot:
+ s0 = cur_slot & mask;
+ d0 = &ring->desc[s0];
+ bi0 = mq->buffers[s0];
+
+ /* previous buffer */
+ b0->next_buffer = bi0;
+ b0->flags |= VLIB_BUFFER_NEXT_PRESENT;
+
+ /* current buffer */
+ b0 = vlib_get_buffer (vm, bi0);
+ 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--;
+ if ((d0->flags & MEMIF_DESC_FLAG_NEXT) && n_slots)
+ goto next_slot;
+ }
+ }
+
+ /* release slots from the ring */
+ mq->last_tail = cur_slot;
+
+ n_from = n_rx_packets;
+ buffers = ptd->buffers;
while (n_from)
{
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);
+ b0 = vlib_get_buffer (vm, buffers[4]);
+ b1 = vlib_get_buffer (vm, buffers[5]);
+ b2 = vlib_get_buffer (vm, buffers[6]);
+ b3 = vlib_get_buffer (vm, buffers[7]);
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[0] = bi0 = buffers[0];
+ to_next[1] = bi1 = buffers[1];
+ to_next[2] = bi2 = buffers[2];
+ to_next[3] = bi3 = buffers[3];
to_next += 4;
n_left_to_next -= 4;
+ buffers += 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);
+ vnet_buffer (b0)->sw_if_index[VLIB_RX] = mif->sw_if_index;
+ vnet_buffer (b0)->sw_if_index[VLIB_TX] = ~0;
+ vnet_buffer (b1)->sw_if_index[VLIB_RX] = mif->sw_if_index;
+ vnet_buffer (b1)->sw_if_index[VLIB_TX] = ~0;
+ vnet_buffer (b2)->sw_if_index[VLIB_RX] = mif->sw_if_index;
+ vnet_buffer (b2)->sw_if_index[VLIB_TX] = ~0;
+ vnet_buffer (b3)->sw_if_index[VLIB_RX] = mif->sw_if_index;
+ vnet_buffer (b3)->sw_if_index[VLIB_TX] = ~0;
if (mode == MEMIF_INTERFACE_MODE_IP)
{
/* next */
n_from -= 4;
- po += 4;
}
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[0] = bi0 = buffers[0];
to_next += 1;
n_left_to_next--;
+ buffers += 1;
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);
+ vnet_buffer (b0)->sw_if_index[VLIB_RX] = mif->sw_if_index;
+ vnet_buffer (b0)->sw_if_index[VLIB_TX] = ~0;
if (mode == MEMIF_INTERFACE_MODE_IP)
{
vnet_feature_start_device_input_x1 (mif->sw_if_index,
&next0, b0);
}
-
}
/* trace */
/* next */
n_from--;
- po++;
}
vlib_put_next_frame (vm, node, next_index, n_left_to_next);
}
/* refill ring with empty buffers */
refill:
vec_reset_length (ptd->buffers);
- vec_reset_length (ptd->copy_ops);
- if (type == MEMIF_RING_M2S)
+ head = ring->head;
+ n_slots = ring_size - head + mq->last_tail;
+
+ if (n_slots < 32)
+ goto done;
+
+ memif_desc_t *dt = &ptd->desc_template;
+ 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);
+
+ if (PREDICT_FALSE (n_alloc != n_slots))
{
- u16 head = ring->head;
- n_slots = ring_size - head + mq->last_tail;
+ vlib_error_count (vm, node->node_index,
+ MEMIF_INPUT_ERROR_BUFFER_ALLOC_FAIL, 1);
+ }
- while (n_slots--)
- {
- u16 s = head++ & mask;
- memif_desc_t *d = &ring->desc[s];
- d->length = mif->run.buffer_size;
- }
+ 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;
- CLIB_MEMORY_STORE_BARRIER ();
- ring->head = head;
+ 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)
+ {
+ 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 ();
+ ring->head = head;
+
+done:
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;
vnet_device_input_runtime_t *rt = (void *) node->runtime_data;
vnet_device_and_queue_t *dq;
+ memif_interface_mode_t mode_ip = MEMIF_INTERFACE_MODE_IP;
+ memif_interface_mode_t mode_eth = MEMIF_INTERFACE_MODE_ETHERNET;
foreach_device_and_queue (dq, rt->devices_and_queues)
{
if ((mif->flags & MEMIF_IF_FLAG_ADMIN_UP) &&
(mif->flags & MEMIF_IF_FLAG_CONNECTED))
{
- if (mif->flags & MEMIF_IF_FLAG_IS_SLAVE)
+ if (mif->flags & MEMIF_IF_FLAG_ZERO_COPY)
+ {
+ if (mif->mode == MEMIF_INTERFACE_MODE_IP)
+ n_rx += memif_device_input_zc_inline (vm, node, frame, mif,
+ dq->queue_id, mode_ip);
+ else
+ n_rx += memif_device_input_zc_inline (vm, node, frame, mif,
+ dq->queue_id, mode_eth);
+ }
+ 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,
MEMIF_RING_M2S, dq->queue_id,
- MEMIF_INTERFACE_MODE_IP);
+ mode_ip);
else
n_rx += memif_device_input_inline (vm, node, frame, mif,
MEMIF_RING_M2S, dq->queue_id,
- MEMIF_INTERFACE_MODE_ETHERNET);
+ mode_eth);
}
else
{
if (mif->mode == MEMIF_INTERFACE_MODE_IP)
n_rx += memif_device_input_inline (vm, node, frame, mif,
MEMIF_RING_S2M, dq->queue_id,
- MEMIF_INTERFACE_MODE_IP);
+ mode_ip);
else
n_rx += memif_device_input_inline (vm, node, frame, mif,
MEMIF_RING_S2M, dq->queue_id,
- MEMIF_INTERFACE_MODE_ETHERNET);
+ mode_eth);
}
}
}
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