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vpp/src/plugins/memif/node.c
Dau Do dc9f5e9519 memif: add num pkts received/sent per queue 
Add memif stats per queue for performance tuning.

Type: improvement
Change-Id: Ifacc80c0adfe92075d91179857c8956d1cbf3a70
Signed-off-by: Dau Do <daudo@yahoo.com>
2024-12-06 13:00:27 +00:00

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39 KiB
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/*
*------------------------------------------------------------------
* Copyright (c) 2016 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*------------------------------------------------------------------
*/
#define _GNU_SOURCE
#include <stdint.h>
#include <net/if.h>
#include <sys/ioctl.h>
#include <sys/uio.h>
#include <vlib/vlib.h>
#include <vlib/unix/unix.h>
#include <vnet/ethernet/ethernet.h>
#include <vnet/interface/rx_queue_funcs.h>
#include <vnet/feature/feature.h>
#include <memif/memif.h>
#include <memif/private.h>
#define MEMIF_IP_OFFSET 14
#define foreach_memif_input_error \
_ (BUFFER_ALLOC_FAIL, buffer_alloc, ERROR, "buffer allocation failed") \
_ (BAD_DESC, bad_desc, ERROR, "bad descriptor") \
_ (NOT_IP, not_ip, INFO, "not ip packet")
typedef enum
{
#define _(f, n, s, d) MEMIF_INPUT_ERROR_##f,
foreach_memif_input_error
#undef _
MEMIF_INPUT_N_ERROR,
} memif_input_error_t;
static vlib_error_desc_t memif_input_error_counters[] = {
#define _(f, n, s, d) { #n, d, VL_COUNTER_SEVERITY_##s },
foreach_memif_input_error
#undef _
};
typedef struct
{
u32 next_index;
u32 hw_if_index;
u16 ring;
} memif_input_trace_t;
static __clib_unused u8 *
format_memif_input_trace (u8 * s, va_list * args)
{
CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
memif_input_trace_t *t = va_arg (*args, memif_input_trace_t *);
u32 indent = format_get_indent (s);
s = format (s, "memif: hw_if_index %d next-index %d",
t->hw_if_index, t->next_index);
s = format (s, "\n%Uslot: ring %u", format_white_space, indent + 2,
t->ring);
return s;
}
static_always_inline u32
memif_next_from_ip_hdr (vlib_node_runtime_t * node, vlib_buffer_t * b)
{
u8 *ptr = vlib_buffer_get_current (b);
u8 v = *ptr & 0xf0;
if (PREDICT_TRUE (v == 0x40))
return VNET_DEVICE_INPUT_NEXT_IP4_NCS_INPUT;
else if (PREDICT_TRUE (v == 0x60))
return VNET_DEVICE_INPUT_NEXT_IP6_INPUT;
b->error = node->errors[MEMIF_INPUT_ERROR_NOT_IP];
return VNET_DEVICE_INPUT_NEXT_DROP;
}
static_always_inline void
memif_trace_buffer (vlib_main_t * vm, vlib_node_runtime_t * node,
memif_if_t * mif, vlib_buffer_t * b, u32 next, u16 qid,
uword * n_tracep)
{
if (PREDICT_TRUE
(b != 0 && vlib_trace_buffer (vm, node, next, b, /* follow_chain */ 0)))
{
memif_input_trace_t *tr;
vlib_set_trace_count (vm, node, --(*n_tracep));
tr = vlib_add_trace (vm, node, b, sizeof (*tr));
tr->next_index = next;
tr->hw_if_index = mif->hw_if_index;
tr->ring = qid;
}
}
static_always_inline void
memif_add_copy_op (memif_per_thread_data_t * ptd, void *data, u32 len,
u16 buffer_offset, u16 buffer_vec_index)
{
memif_copy_op_t *co;
vec_add2_aligned (ptd->copy_ops, co, 1, CLIB_CACHE_LINE_BYTES);
co->data = data;
co->data_len = len;
co->buffer_offset = buffer_offset;
co->buffer_vec_index = buffer_vec_index;
}
static_always_inline void
memif_add_to_chain (vlib_main_t * vm, vlib_buffer_t * b, u32 * buffers,
u32 buffer_size)
{
vlib_buffer_t *seg = b;
i32 bytes_left = b->current_length - buffer_size + b->current_data;
if (PREDICT_TRUE (bytes_left <= 0))
return;
b->current_length -= bytes_left;
b->total_length_not_including_first_buffer = bytes_left;
while (bytes_left)
{
seg->flags |= VLIB_BUFFER_NEXT_PRESENT;
seg->next_buffer = buffers[0];
seg = vlib_get_buffer (vm, buffers[0]);
buffers++;
seg->current_data = 0;
seg->current_length = clib_min (buffer_size, bytes_left);
bytes_left -= seg->current_length;
}
}
static_always_inline u16
memif_parse_desc (memif_per_thread_data_t *ptd, memif_if_t *mif,
memif_queue_t *mq, u16 next, u16 n_avail)
{
memif_ring_t *ring = mq->ring;
memif_desc_t *descs = ring->desc;
void **desc_data = ptd->desc_data;
u16 *desc_len = ptd->desc_len;
memif_desc_status_t *desc_status = ptd->desc_status;
u16 n_desc = 0, n_pkts = 0;
u32 i = 0;
u16 mask = pow2_mask (mq->log2_ring_size);
memif_desc_t *d = 0;
u32 slot = next;
while (i < n_avail)
{
u8 flags;
d = descs + (slot++ & mask);
desc_data[i] = (void *) ((u64) d->region << 32 | d->offset);
desc_len[i] = d->length;
desc_status[i].as_u8 = flags = d->flags;
i++;
if (PREDICT_FALSE ((flags & MEMIF_DESC_FLAG_NEXT)) == 0)
{
n_desc = i;
if (++n_pkts == MEMIF_RX_VECTOR_SZ)
goto frame_full;
}
}
frame_full:
/* done */
ptd->n_packets = n_pkts;
return n_desc;
}
static_always_inline void
memif_desc_status_set_err (memif_desc_status_t *p,
memif_desc_status_err_code_t e)
{
memif_desc_status_t s = { .err = 1, .err_code = e };
p->as_u8 |= s.as_u8;
}
static_always_inline void
memif_validate_desc_data (memif_per_thread_data_t *ptd, memif_if_t *mif,
u16 n_desc, int is_ethernet)
{
void **desc_data = ptd->desc_data;
u16 *desc_len = ptd->desc_len;
memif_desc_status_t *desc_status = ptd->desc_status;
u16 n_regions = vec_len (mif->regions);
u32 n_rx_bytes = 0;
u16 max_len = 0;
u8 xor_status = 0;
for (u32 i = 0; i < n_desc; i++)
{
u16 region = ((u64) desc_data[i]) >> 32;
u32 offset = (u64) desc_data[i];
u16 len = desc_len[i];
memif_region_t *r = mif->regions + region;
if (region >= n_regions)
memif_desc_status_set_err (desc_status + i,
MEMIF_DESC_STATUS_ERR_BAD_REGION);
else if (offset + len > r->region_size)
memif_desc_status_set_err (desc_status + i,
MEMIF_DESC_STATUS_ERR_REGION_OVERRUN);
else if (is_ethernet && len > ETHERNET_MAX_PACKET_BYTES)
memif_desc_status_set_err (desc_status + i,
MEMIF_DESC_STATUS_ERR_DATA_TOO_BIG);
else if (len == 0)
memif_desc_status_set_err (desc_status + i,
MEMIF_DESC_STATUS_ERR_ZERO_LENGTH);
else
{
desc_data[i] = r->shm + offset;
if (len > max_len)
max_len = len;
n_rx_bytes += len;
}
xor_status |= desc_status[i].as_u8;
}
ptd->max_desc_len = max_len;
ptd->xor_status = xor_status;
ptd->n_rx_bytes = n_rx_bytes;
}
static_always_inline u32
memif_process_desc (vlib_main_t *vm, vlib_node_runtime_t *node,
memif_per_thread_data_t *ptd, memif_if_t *mif)
{
u16 buffer_size = vlib_buffer_get_default_data_size (vm);
int is_ip = mif->mode == MEMIF_INTERFACE_MODE_IP;
i16 start_offset = (is_ip) ? MEMIF_IP_OFFSET : 0;
memif_packet_op_t *po = ptd->packet_ops;
void **desc_data = ptd->desc_data;
u16 *desc_len = ptd->desc_len;
memif_desc_status_t *desc_status = ptd->desc_status;
u32 n_buffers = 0;
u32 n_left = ptd->n_packets;
u32 packet_len;
int i = -1;
int bad_packets = 0;
/* construct copy and packet vector out of ring slots */
while (n_left)
{
u32 dst_off, src_off, n_bytes_left;
void *mb0;
po->first_buffer_vec_index = n_buffers++;
packet_len = 0;
src_off = 0;
dst_off = start_offset;
next_slot:
i++; /* next descriptor */
n_bytes_left = desc_len[i];
packet_len += n_bytes_left;
mb0 = desc_data[i];
if (PREDICT_FALSE (desc_status[i].err))
{
vlib_error_count (vm, node->node_index, MEMIF_INPUT_ERROR_BAD_DESC,
1);
bad_packets++;
ASSERT (n_buffers > 0);
n_buffers--;
goto next_packet;
}
else
do
{
u32 dst_free = buffer_size - dst_off;
if (dst_free == 0)
{
dst_off = 0;
dst_free = buffer_size;
n_buffers++;
}
u32 bytes_to_copy = clib_min (dst_free, n_bytes_left);
memif_add_copy_op (ptd, mb0 + src_off, bytes_to_copy, dst_off,
n_buffers - 1);
n_bytes_left -= bytes_to_copy;
src_off += bytes_to_copy;
dst_off += bytes_to_copy;
}
while (PREDICT_FALSE (n_bytes_left));
if (desc_status[i].next)
{
src_off = 0;
goto next_slot;
}
/* update packet op */
po->packet_len = packet_len;
po++;
next_packet:
/* next packet */
n_left--;
}
ASSERT (ptd->n_packets >= bad_packets);
ptd->n_packets -= bad_packets;
return n_buffers;
}
static_always_inline void
memif_fill_buffer_mdata_simple (vlib_node_runtime_t *node,
memif_per_thread_data_t *ptd,
vlib_buffer_t **b, u16 *next, int is_ip)
{
vlib_buffer_t bt;
u16 *dl = ptd->desc_len;
/* process buffer metadata */
u32 n_left = ptd->n_packets;
/* copy template into local variable - will save per packet load */
vlib_buffer_copy_template (&bt, &ptd->buffer_template);
while (n_left >= 8)
{
vlib_prefetch_buffer_header (b[4], STORE);
vlib_prefetch_buffer_header (b[5], STORE);
vlib_prefetch_buffer_header (b[6], STORE);
vlib_prefetch_buffer_header (b[7], STORE);
vlib_buffer_copy_template (b[0], &bt);
vlib_buffer_copy_template (b[1], &bt);
vlib_buffer_copy_template (b[2], &bt);
vlib_buffer_copy_template (b[3], &bt);
b[0]->current_length = dl[0];
b[1]->current_length = dl[1];
b[2]->current_length = dl[2];
b[3]->current_length = dl[3];
if (is_ip)
{
next[0] = memif_next_from_ip_hdr (node, b[0]);
next[1] = memif_next_from_ip_hdr (node, b[1]);
next[2] = memif_next_from_ip_hdr (node, b[2]);
next[3] = memif_next_from_ip_hdr (node, b[3]);
}
/* next */
n_left -= 4;
b += 4;
dl += 4;
next += 4;
}
while (n_left)
{
/* enqueue buffer */
vlib_buffer_copy_template (b[0], &bt);
b[0]->current_length = dl[0];
if (is_ip)
next[0] = memif_next_from_ip_hdr (node, b[0]);
/* next */
n_left -= 1;
b += 1;
dl += 1;
next += 1;
}
}
static_always_inline void
memif_fill_buffer_mdata (vlib_main_t *vm, vlib_node_runtime_t *node,
memif_per_thread_data_t *ptd, memif_if_t *mif,
u32 *bi, u16 *next, int is_ip)
{
u16 buffer_size = vlib_buffer_get_default_data_size (vm);
vlib_buffer_t *b0, *b1, *b2, *b3, bt;
memif_packet_op_t *po;
/* process buffer metadata */
u32 n_from = ptd->n_packets;
po = ptd->packet_ops;
/* copy template into local variable - will save per packet load */
vlib_buffer_copy_template (&bt, &ptd->buffer_template);
while (n_from >= 8)
{
b0 = vlib_get_buffer (vm, ptd->buffers[po[4].first_buffer_vec_index]);
b1 = vlib_get_buffer (vm, ptd->buffers[po[5].first_buffer_vec_index]);
b2 = vlib_get_buffer (vm, ptd->buffers[po[6].first_buffer_vec_index]);
b3 = vlib_get_buffer (vm, ptd->buffers[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]);
vlib_buffer_copy_template (b0, &bt);
vlib_buffer_copy_template (b1, &bt);
vlib_buffer_copy_template (b2, &bt);
vlib_buffer_copy_template (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 + 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 (is_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[1];
/* enqueue buffer */
fbvi[0] = po[0].first_buffer_vec_index;
bi[0] = ptd->buffers[fbvi[0]];
b0 = vlib_get_buffer (vm, bi[0]);
vlib_buffer_copy_template (b0, &bt);
b0->current_length = po->packet_len;
memif_add_to_chain (vm, b0, ptd->buffers + fbvi[0] + 1, buffer_size);
if (is_ip)
next[0] = memif_next_from_ip_hdr (node, b0);
/* next */
n_from -= 1;
po += 1;
bi += 1;
next += 1;
}
}
static_always_inline void
memif_advance_ring (memif_ring_type_t type, memif_queue_t *mq,
memif_ring_t *ring, u16 cur_slot)
{
if (type == MEMIF_RING_S2M)
{
__atomic_store_n (&ring->tail, cur_slot, __ATOMIC_RELEASE);
mq->last_head = cur_slot;
}
else
{
mq->last_tail = cur_slot;
}
}
static_always_inline uword
memif_device_input_inline (vlib_main_t *vm, vlib_node_runtime_t *node,
memif_if_t *mif, memif_ring_type_t type, 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;
u16 buffer_size = vlib_buffer_get_default_data_size (vm);
uword n_trace;
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_left_to_next;
u32 next_index = VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT;
vlib_buffer_t *buffer_ptrs[MEMIF_RX_VECTOR_SZ];
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, ring_size, n_slots, mask;
u16 n_buffers, n_alloc, n_desc;
i16 start_offset;
memif_copy_op_t *co;
int is_slave = (mif->flags & MEMIF_IF_FLAG_IS_SLAVE) != 0;
int is_simple = 1;
int i;
mq = vec_elt_at_index (mif->rx_queues, qid);
ring = mq->ring;
ring_size = 1 << mq->log2_ring_size;
mask = ring_size - 1;
start_offset = (mode == MEMIF_INTERFACE_MODE_IP) ? MEMIF_IP_OFFSET : 0;
if (is_slave)
{
cur_slot = mq->last_tail;
n_slots = __atomic_load_n (&ring->tail, __ATOMIC_ACQUIRE) - cur_slot;
}
else
{
cur_slot = mq->last_head;
n_slots = __atomic_load_n (&ring->head, __ATOMIC_ACQUIRE) - cur_slot;
}
if (n_slots == 0)
{
ptd->n_packets = 0;
goto refill;
}
n_desc = memif_parse_desc (ptd, mif, mq, cur_slot, n_slots);
if (n_desc != ptd->n_packets)
is_simple = 0;
cur_slot += n_desc;
if (mif->mode == MEMIF_INTERFACE_MODE_ETHERNET)
memif_validate_desc_data (ptd, mif, n_desc, /* is_ethernet */ 1);
else
memif_validate_desc_data (ptd, mif, n_desc, /* is_ethernet */ 0);
if (ptd->max_desc_len > buffer_size - start_offset)
is_simple = 0;
if (ptd->xor_status != 0)
is_simple = 0;
if (is_simple)
n_buffers = ptd->n_packets;
else
n_buffers = memif_process_desc (vm, node, ptd, mif);
if (PREDICT_FALSE (n_buffers == 0))
{
/* All descriptors are bad. Release slots in the ring and bail */
memif_advance_ring (type, mq, ring, cur_slot);
goto refill;
}
/* allocate free buffers */
vec_validate_aligned (ptd->buffers, n_buffers - 1, CLIB_CACHE_LINE_BYTES);
n_alloc = vlib_buffer_alloc_from_pool (vm, ptd->buffers, n_buffers,
mq->buffer_pool_index);
if (PREDICT_FALSE (n_alloc != n_buffers))
{
if (n_alloc)
vlib_buffer_free (vm, ptd->buffers, n_alloc);
vlib_error_count (vm, node->node_index,
MEMIF_INPUT_ERROR_BUFFER_ALLOC_FAIL, 1);
goto refill;
}
/* copy data */
if (is_simple)
{
int n_pkts = ptd->n_packets;
void **desc_data = ptd->desc_data;
u16 *desc_len = ptd->desc_len;
vlib_get_buffers (vm, ptd->buffers, buffer_ptrs, n_buffers);
for (i = 0; i + 8 < n_pkts; i++)
{
clib_prefetch_load (desc_data[i + 8]);
clib_prefetch_store (buffer_ptrs[i + 8]->data);
clib_memcpy_fast (buffer_ptrs[i]->data + start_offset, desc_data[i],
desc_len[i]);
}
for (; i < n_pkts; i++)
clib_memcpy_fast (buffer_ptrs[i]->data + start_offset, desc_data[i],
desc_len[i]);
}
else
{
vlib_buffer_t *b;
u32 n_pkts = vec_len (ptd->copy_ops);
co = ptd->copy_ops;
for (i = 0; i + 8 < n_pkts; i++)
{
clib_prefetch_load (co[i + 8].data);
b = vlib_get_buffer (vm, ptd->buffers[co[i].buffer_vec_index]);
clib_memcpy_fast (b->data + co[i].buffer_offset, co[i].data,
co[i].data_len);
}
for (; i < n_pkts; i++)
{
b = vlib_get_buffer (vm, ptd->buffers[co[i].buffer_vec_index]);
clib_memcpy_fast (b->data + co[i].buffer_offset, co[i].data,
co[i].data_len);
}
}
/* release slots from the ring */
memif_advance_ring (type, mq, ring, cur_slot);
/* prepare buffer template and next indices */
vnet_buffer (&ptd->buffer_template)->sw_if_index[VLIB_RX] = mif->sw_if_index;
vnet_buffer (&ptd->buffer_template)->feature_arc_index = 0;
ptd->buffer_template.current_data = start_offset;
ptd->buffer_template.current_config_index = 0;
ptd->buffer_template.buffer_pool_index = mq->buffer_pool_index;
ptd->buffer_template.ref_count = 1;
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 (mif->sw_if_index, &next_index,
&ptd->buffer_template);
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);
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;
vlib_frame_no_append (f);
}
}
if (is_simple)
{
vlib_buffer_copy_indices (to_next_bufs, ptd->buffers, ptd->n_packets);
if (mode == MEMIF_INTERFACE_MODE_IP)
memif_fill_buffer_mdata_simple (node, ptd, buffer_ptrs, nexts, 1);
else
memif_fill_buffer_mdata_simple (node, ptd, buffer_ptrs, nexts, 0);
}
else
{
if (mode == MEMIF_INTERFACE_MODE_IP)
memif_fill_buffer_mdata (vm, node, ptd, mif, to_next_bufs, nexts, 1);
else
memif_fill_buffer_mdata (vm, node, ptd, mif, to_next_bufs, nexts, 0);
}
/* packet trace if enabled */
if (PREDICT_FALSE ((n_trace = vlib_get_trace_count (vm, node))))
{
u32 n_left = ptd->n_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]);
if (PREDICT_TRUE
(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;
n_trace--;
}
/* next */
n_left--;
bi++;
next++;
}
vlib_set_trace_count (vm, node, n_trace);
}
if (mode == MEMIF_INTERFACE_MODE_ETHERNET)
{
n_left_to_next -= ptd->n_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,
ptd->n_packets);
vlib_increment_combined_counter (
vnm->interface_main.combined_sw_if_counters + VNET_INTERFACE_COUNTER_RX,
thread_index, mif->sw_if_index, ptd->n_packets, ptd->n_rx_bytes);
mq->n_packets += ptd->n_packets;
/* 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;
}
__atomic_store_n (&ring->head, head, __ATOMIC_RELEASE);
}
return ptd->n_packets;
}
static_always_inline uword
memif_device_input_zc_inline (vlib_main_t *vm, vlib_node_runtime_t *node,
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 slot, s0;
memif_desc_t *d0;
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;
u64 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_get_default_data_size (vm) - start_offset;
cur_slot = mq->last_tail;
last_slot = __atomic_load_n (&ring->tail, __ATOMIC_ACQUIRE);
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_load (&ring->desc[(cur_slot + 8) & mask]);
d0 = &ring->desc[s0];
hb = b0 = vlib_get_buffer (vm, bi0);
b0->current_data = start_offset;
b0->current_length = d0->length;
n_rx_bytes += d0->length;
cur_slot++;
n_slots--;
if (PREDICT_FALSE ((d0->flags & MEMIF_DESC_FLAG_NEXT) && n_slots))
{
hb->flags |= VLIB_BUFFER_TOTAL_LENGTH_VALID;
hb->total_length_not_including_first_buffer = 0;
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 = 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)
{
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)
{
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 */
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);
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)
{
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 (mif->sw_if_index, &next0,
b0);
vnet_feature_start_device_input (mif->sw_if_index, &next1,
b1);
vnet_feature_start_device_input (mif->sw_if_index, &next2,
b2);
vnet_feature_start_device_input (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;
}
while (n_from && n_left_to_next)
{
/* enqueue buffer */
to_next[0] = bi0 = buffers[0];
to_next += 1;
n_left_to_next--;
buffers += 1;
b0 = vlib_get_buffer (vm, bi0);
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)
{
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 (mif->sw_if_index, &next0,
b0);
}
}
/* trace */
if (PREDICT_FALSE (n_trace > 0))
memif_trace_buffer (vm, node, mif, b0, next0, qid, &n_trace);
/* enqueue */
vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
n_left_to_next, bi0, next0);
/* next */
n_from--;
}
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, thread_index,
mif->sw_if_index, n_rx_packets,
n_rx_bytes);
mq->n_packets += n_rx_packets;
/* refill ring with empty buffers */
refill:
vec_reset_length (ptd->buffers);
head = ring->head;
n_slots = ring_size - head + mq->last_tail;
slot = head & mask;
n_slots &= ~7;
if (n_slots < 32)
goto done;
memif_desc_t desc_template, *dt = &desc_template;
clib_memset (dt, 0, sizeof (memif_desc_t));
dt->length = buffer_length;
n_alloc = vlib_buffer_alloc_to_ring_from_pool (
vm, mq->buffers, slot, ring_size, n_slots, mq->buffer_pool_index);
dt->region = mq->buffer_pool_index + 1;
offset = (u64) mif->regions[dt->region].shm - start_offset;
if (PREDICT_FALSE (n_alloc != n_slots))
vlib_error_count (vm, node->node_index,
MEMIF_INPUT_ERROR_BUFFER_ALLOC_FAIL, 1);
head += n_alloc;
while (n_alloc)
{
memif_desc_t *d = ring->desc + slot;
u32 *bi = mq->buffers + slot;
if (PREDICT_FALSE (((slot + 7 > mask) || (n_alloc < 8))))
goto one_by_one;
clib_memcpy_fast (d + 0, dt, sizeof (memif_desc_t));
clib_memcpy_fast (d + 1, dt, sizeof (memif_desc_t));
clib_memcpy_fast (d + 2, dt, sizeof (memif_desc_t));
clib_memcpy_fast (d + 3, dt, sizeof (memif_desc_t));
clib_memcpy_fast (d + 4, dt, sizeof (memif_desc_t));
clib_memcpy_fast (d + 5, dt, sizeof (memif_desc_t));
clib_memcpy_fast (d + 6, dt, sizeof (memif_desc_t));
clib_memcpy_fast (d + 7, dt, sizeof (memif_desc_t));
d[0].offset = (u64) vlib_get_buffer (vm, bi[0])->data - offset;
d[1].offset = (u64) vlib_get_buffer (vm, bi[1])->data - offset;
d[2].offset = (u64) vlib_get_buffer (vm, bi[2])->data - offset;
d[3].offset = (u64) vlib_get_buffer (vm, bi[3])->data - offset;
d[4].offset = (u64) vlib_get_buffer (vm, bi[4])->data - offset;
d[5].offset = (u64) vlib_get_buffer (vm, bi[5])->data - offset;
d[6].offset = (u64) vlib_get_buffer (vm, bi[6])->data - offset;
d[7].offset = (u64) vlib_get_buffer (vm, bi[7])->data - offset;
slot = (slot + 8) & mask;
n_alloc -= 8;
continue;
one_by_one:
clib_memcpy_fast (d, dt, sizeof (memif_desc_t));
d[0].offset = (u64) vlib_get_buffer (vm, bi[0])->data - offset;
slot = (slot + 1) & mask;
n_alloc -= 1;
}
__atomic_store_n (&ring->head, head, __ATOMIC_RELEASE);
done:
return n_rx_packets;
}
CLIB_MARCH_FN (memif_dma_completion_cb, void, vlib_main_t *vm,
vlib_dma_batch_t *b)
{
memif_main_t *mm = &memif_main;
memif_if_t *mif = vec_elt_at_index (mm->interfaces, b->cookie >> 16);
u32 thread_index = vm->thread_index;
u32 n_left_to_next = 0;
u16 nexts[MEMIF_RX_VECTOR_SZ], *next;
u32 _to_next_bufs[MEMIF_RX_VECTOR_SZ], *to_next_bufs = _to_next_bufs, *bi;
uword n_trace;
memif_dma_info_t *dma_info;
u16 qid = b->cookie & 0xffff;
memif_queue_t *mq = vec_elt_at_index (mif->rx_queues, qid);
dma_info = mq->dma_info + mq->dma_info_head;
memif_per_thread_data_t *ptd = &dma_info->data;
vnet_main_t *vnm = vnet_get_main ();
u32 next_index = VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT;
__atomic_store_n (&mq->ring->tail, dma_info->dma_tail, __ATOMIC_RELEASE);
/* prepare buffer template and next indices */
i16 start_offset =
(dma_info->mode == MEMIF_INTERFACE_MODE_IP) ? MEMIF_IP_OFFSET : 0;
vnet_buffer (&ptd->buffer_template)->sw_if_index[VLIB_RX] = mif->sw_if_index;
vnet_buffer (&ptd->buffer_template)->feature_arc_index = 0;
ptd->buffer_template.current_data = start_offset;
ptd->buffer_template.current_config_index = 0;
ptd->buffer_template.buffer_pool_index = mq->buffer_pool_index;
ptd->buffer_template.ref_count = 1;
if (dma_info->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 (mif->sw_if_index, &next_index,
&ptd->buffer_template);
vlib_get_new_next_frame (vm, dma_info->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, dma_info->node, next_index);
f = vlib_get_frame (vm, nf->frame);
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;
vlib_frame_no_append (f);
}
}
vec_reset_length (ptd->buffers);
if (dma_info->mode == MEMIF_INTERFACE_MODE_IP)
memif_fill_buffer_mdata (vm, dma_info->node, ptd, mif, to_next_bufs, nexts,
1);
else
memif_fill_buffer_mdata (vm, dma_info->node, ptd, mif, to_next_bufs, nexts,
0);
/* packet trace if enabled */
if (PREDICT_FALSE ((n_trace = vlib_get_trace_count (vm, dma_info->node))))
{
u32 n_left = ptd->n_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 (dma_info->mode != MEMIF_INTERFACE_MODE_ETHERNET)
ni = next[0];
b = vlib_get_buffer (vm, bi[0]);
if (PREDICT_TRUE (vlib_trace_buffer (vm, dma_info->node, ni, b,
/* follow_chain */ 0)))
{
tr = vlib_add_trace (vm, dma_info->node, b, sizeof (*tr));
tr->next_index = ni;
tr->hw_if_index = mif->hw_if_index;
tr->ring = qid;
n_trace--;
}
/* next */
n_left--;
bi++;
next++;
}
vlib_set_trace_count (vm, dma_info->node, n_trace);
}
if (dma_info->mode == MEMIF_INTERFACE_MODE_ETHERNET)
{
n_left_to_next -= ptd->n_packets;
vlib_put_next_frame (vm, dma_info->node, next_index, n_left_to_next);
}
else
vlib_buffer_enqueue_to_next (vm, dma_info->node, to_next_bufs, nexts,
ptd->n_packets);
vlib_increment_combined_counter (
vnm->interface_main.combined_sw_if_counters + VNET_INTERFACE_COUNTER_RX,
thread_index, mif->sw_if_index, ptd->n_packets, ptd->n_rx_bytes);
mq->n_packets += ptd->n_packets;
mq->dma_info_head++;
if (mq->dma_info_head == mq->dma_info_size)
mq->dma_info_head = 0;
return;
}
#ifndef CLIB_MARCH_VARIANT
void
memif_dma_completion_cb (vlib_main_t *vm, vlib_dma_batch_t *b)
{
return CLIB_MARCH_FN_SELECT (memif_dma_completion_cb) (vm, b);
}
#endif
static_always_inline uword
memif_device_input_inline_dma (vlib_main_t *vm, vlib_node_runtime_t *node,
memif_if_t *mif, memif_ring_type_t type,
u16 qid, memif_interface_mode_t mode)
{
memif_main_t *mm = &memif_main;
memif_ring_t *ring;
memif_queue_t *mq;
memif_per_thread_data_t *ptd;
u16 cur_slot, n_slots;
u16 n_buffers, n_alloc, n_desc;
memif_copy_op_t *co;
memif_dma_info_t *dma_info;
u16 mif_id = mif - mm->interfaces;
u32 i;
mq = vec_elt_at_index (mif->rx_queues, qid);
ring = mq->ring;
cur_slot = mq->last_head;
n_slots = __atomic_load_n (&ring->head, __ATOMIC_ACQUIRE) - cur_slot;
if (n_slots == 0)
return 0;
if ((mq->dma_info_tail + 1 == mq->dma_info_head) ||
((mq->dma_info_head == mq->dma_info_size - 1) &&
(mq->dma_info_tail == 0)))
return 0;
vlib_dma_batch_t *db;
db = vlib_dma_batch_new (vm, mif->dma_input_config);
if (!db)
return 0;
dma_info = mq->dma_info + mq->dma_info_tail;
dma_info->node = node;
dma_info->mode = mode;
ptd = &dma_info->data;
vec_validate_aligned (dma_info->data.desc_len,
pow2_mask (mq->log2_ring_size), CLIB_CACHE_LINE_BYTES);
n_desc = memif_parse_desc (&dma_info->data, mif, mq, cur_slot, n_slots);
cur_slot += n_desc;
if (mif->mode == MEMIF_INTERFACE_MODE_ETHERNET)
memif_validate_desc_data (&dma_info->data, mif, n_desc,
/* is_ethernet */ 1);
else
memif_validate_desc_data (&dma_info->data, mif, n_desc,
/* is_ethernet */ 0);
n_buffers = memif_process_desc (vm, node, ptd, mif);
if (PREDICT_FALSE (n_buffers == 0))
{
/* All descriptors are bad. Release slots in the ring and bail */
memif_advance_ring (type, mq, ring, cur_slot);
goto done;
}
/* allocate free buffers */
vec_validate_aligned (dma_info->data.buffers, n_buffers - 1,
CLIB_CACHE_LINE_BYTES);
n_alloc = vlib_buffer_alloc_from_pool (vm, dma_info->data.buffers, n_buffers,
mq->buffer_pool_index);
if (PREDICT_FALSE (n_alloc != n_buffers))
{
if (n_alloc)
vlib_buffer_free (vm, dma_info->data.buffers, n_alloc);
vlib_error_count (vm, node->node_index,
MEMIF_INPUT_ERROR_BUFFER_ALLOC_FAIL, 1);
goto done;
}
dma_info->data.n_rx_bytes = ptd->n_rx_bytes;
dma_info->data.n_packets = ptd->n_packets;
/* copy data */
vlib_buffer_t *b;
u32 n_pkts = clib_min (MEMIF_RX_VECTOR_SZ, vec_len (ptd->copy_ops));
co = ptd->copy_ops;
for (i = 0; i < n_pkts; i++)
{
b = vlib_get_buffer (vm, ptd->buffers[co[i].buffer_vec_index]);
vlib_dma_batch_add (vm, db, b->data + co[i].buffer_offset, co[i].data,
co[i].data_len);
}
for (i = n_pkts; i < vec_len (ptd->copy_ops); i++)
{
b = vlib_get_buffer (vm, ptd->buffers[co[i].buffer_vec_index]);
vlib_dma_batch_add (vm, db, b->data + co[i].buffer_offset, co[i].data,
co[i].data_len);
}
dma_info->dma_tail = cur_slot;
mq->last_head = dma_info->dma_tail;
mq->dma_info_tail++;
if (mq->dma_info_tail == mq->dma_info_size)
mq->dma_info_tail = 0;
done:
vlib_dma_batch_set_cookie (vm, db, ((u64) mif_id << 16) | qid);
vlib_dma_batch_submit (vm, db);
vec_reset_length (ptd->copy_ops);
return ptd->n_packets;
}
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;
memif_interface_mode_t mode_ip = MEMIF_INTERFACE_MODE_IP;
memif_interface_mode_t mode_eth = MEMIF_INTERFACE_MODE_ETHERNET;
vnet_hw_if_rxq_poll_vector_t *pv;
pv = vnet_hw_if_get_rxq_poll_vector (vm, node);
for (int i = 0; i < vec_len (pv); i++)
{
memif_if_t *mif;
u32 qid;
mif = vec_elt_at_index (mm->interfaces, pv[i].dev_instance);
qid = pv[i].queue_id;
if ((mif->flags & MEMIF_IF_FLAG_ADMIN_UP) &&
(mif->flags & MEMIF_IF_FLAG_CONNECTED))
{
if (mif->flags & MEMIF_IF_FLAG_ZERO_COPY)
{
if (mif->mode == MEMIF_INTERFACE_MODE_IP)
n_rx +=
memif_device_input_zc_inline (vm, node, mif, qid, mode_ip);
else
n_rx +=
memif_device_input_zc_inline (vm, node, mif, qid, 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, mif, MEMIF_RING_M2S, qid, mode_ip);
else
n_rx += memif_device_input_inline (
vm, node, mif, MEMIF_RING_M2S, qid, mode_eth);
}
else
{
if ((mif->flags & MEMIF_IF_FLAG_USE_DMA) &&
(mif->dma_input_config >= 0))
{
if (mif->mode == MEMIF_INTERFACE_MODE_IP)
n_rx += memif_device_input_inline_dma (
vm, node, mif, MEMIF_RING_S2M, qid, mode_ip);
else
n_rx += memif_device_input_inline_dma (
vm, node, mif, MEMIF_RING_S2M, qid, mode_eth);
}
else
{
if (mif->mode == MEMIF_INTERFACE_MODE_IP)
n_rx += memif_device_input_inline (
vm, node, mif, MEMIF_RING_S2M, qid, mode_ip);
else
n_rx += memif_device_input_inline (
vm, node, mif, MEMIF_RING_S2M, qid, mode_eth);
}
}
}
}
return n_rx;
}
VLIB_REGISTER_NODE (memif_input_node) = {
.name = "memif-input",
.flags = VLIB_NODE_FLAG_TRACE_SUPPORTED,
.sibling_of = "device-input",
.format_trace = format_memif_input_trace,
.type = VLIB_NODE_TYPE_INPUT,
.state = VLIB_NODE_STATE_INTERRUPT,
.n_errors = MEMIF_INPUT_N_ERROR,
.error_counters = memif_input_error_counters,
};
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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