diff options
| -rw-r--r-- | src/plugins/memif/cli.c | 8 | ||||
| -rw-r--r-- | src/plugins/memif/device.c | 265 | ||||
| -rw-r--r-- | src/plugins/memif/memif.c | 39 | ||||
| -rw-r--r-- | src/plugins/memif/memif.h | 14 | ||||
| -rw-r--r-- | src/plugins/memif/node.c | 685 | ||||
| -rw-r--r-- | src/plugins/memif/private.h | 33 |
6 files changed, 558 insertions, 486 deletions
diff --git a/src/plugins/memif/cli.c b/src/plugins/memif/cli.c index 6a149f9fb94..ed2b1b7e6d0 100644 --- a/src/plugins/memif/cli.c +++ b/src/plugins/memif/cli.c @@ -392,17 +392,17 @@ format_memif_descriptor (u8 * s, va_list * args) s = format (s, "%Udescriptor table:\n", format_white_space, indent); s = format (s, - "%Uid flags buf len desc len address offset user address\n", + "%Uid flags len address offset user address\n", format_white_space, indent); s = format (s, - "%U===== ===== ======= ======== ================== ====== ==================\n", + "%U===== ===== ======== ================== ====== ==================\n", format_white_space, indent); for (slot = 0; slot < ring_size; slot++) { - s = format (s, "%U%-5d %-5d %-7d %-7d 0x%016lx %-6d 0x%016lx\n", + s = format (s, "%U%-5d %-5d %-7d 0x%016lx %-6d 0x%016lx\n", format_white_space, indent, slot, - ring->desc[slot].flags, ring->desc[slot].buffer_length, + ring->desc[slot].flags, ring->desc[slot].length, mif->regions[ring->desc[slot].region].shm, ring->desc[slot].offset, memif_get_buffer (mif, ring, diff --git a/src/plugins/memif/device.c b/src/plugins/memif/device.c index 22f9753dc42..112db57b4b4 100644 --- a/src/plugins/memif/device.c +++ b/src/plugins/memif/device.c @@ -30,8 +30,7 @@ #define foreach_memif_tx_func_error \ _(NO_FREE_SLOTS, "no free tx slots") \ -_(TRUNC_PACKET, "packet > buffer size -- truncated in tx ring") \ -_(PENDING_MSGS, "pending msgs in tx ring") +_(ROLLBACK, "no enough space in tx buffers") typedef enum { @@ -86,77 +85,15 @@ format_memif_tx_trace (u8 * s, va_list * args) } static_always_inline void -memif_prefetch_buffer_and_data (vlib_main_t * vm, u32 bi) +memif_add_copy_op (memif_per_thread_data_t * ptd, void *data, u32 len, + u16 buffer_offset, u16 buffer_vec_index) { - vlib_buffer_t *b = vlib_get_buffer (vm, bi); - vlib_prefetch_buffer_header (b, LOAD); - CLIB_PREFETCH (b->data, CLIB_CACHE_LINE_BYTES, LOAD); -} - -/** - * @brief Copy buffer to tx ring - * - * @param * vm (in) - * @param * node (in) - * @param * mif (in) pointer to memif interface - * @param bi (in) vlib buffer index - * @param * ring (in) pointer to memif ring - * @param * head (in/out) ring head - * @param mask (in) ring size - 1 - */ -static_always_inline void -memif_copy_buffer_to_tx_ring (vlib_main_t * vm, vlib_node_runtime_t * node, - memif_if_t * mif, u32 bi, memif_ring_t * ring, - u16 * head, u16 mask) -{ - vlib_buffer_t *b0; - void *mb0; - u32 total = 0, len; - u16 slot = (*head) & mask; - - mb0 = memif_get_buffer (mif, ring, slot); - ring->desc[slot].flags = 0; - do - { - b0 = vlib_get_buffer (vm, bi); - len = b0->current_length; - if (PREDICT_FALSE (ring->desc[slot].buffer_length < (total + len))) - { - if (PREDICT_TRUE (total)) - { - ring->desc[slot].length = total; - total = 0; - ring->desc[slot].flags |= MEMIF_DESC_FLAG_NEXT; - (*head)++; - slot = (*head) & mask; - mb0 = memif_get_buffer (mif, ring, slot); - ring->desc[slot].flags = 0; - } - } - if (PREDICT_TRUE (ring->desc[slot].buffer_length >= (total + len))) - { - clib_memcpy (mb0 + total, vlib_buffer_get_current (b0), - CLIB_CACHE_LINE_BYTES); - if (len > CLIB_CACHE_LINE_BYTES) - clib_memcpy (mb0 + CLIB_CACHE_LINE_BYTES + total, - vlib_buffer_get_current (b0) + CLIB_CACHE_LINE_BYTES, - len - CLIB_CACHE_LINE_BYTES); - total += len; - } - else - { - vlib_error_count (vm, node->node_index, MEMIF_TX_ERROR_TRUNC_PACKET, - 1); - break; - } - } - while ((bi = (b0->flags & VLIB_BUFFER_NEXT_PRESENT) ? b0->next_buffer : 0)); - - if (PREDICT_TRUE (total)) - { - ring->desc[slot].length = total; - (*head)++; - } + 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 uword @@ -168,13 +105,18 @@ memif_interface_tx_inline (vlib_main_t * vm, vlib_node_runtime_t * node, memif_ring_t *ring; u32 *buffers = vlib_frame_args (frame); u32 n_left = frame->n_vectors; - u16 ring_size, mask; - u16 head, tail; - u16 free_slots; + u32 n_copy_op; + u16 ring_size, mask, slot, free_slots; u32 thread_index = vlib_get_thread_index (); + memif_per_thread_data_t *ptd = vec_elt_at_index (memif_main.per_thread_data, + thread_index); u8 tx_queues = vec_len (mif->tx_queues); memif_queue_t *mq; int n_retries = 5; + vlib_buffer_t *b0, *b1, *b2, *b3; + memif_copy_op_t *co; + memif_region_index_t last_region = ~0; + void *last_region_shm = 0; if (tx_queues < vec_len (vlib_mains)) { @@ -189,49 +131,158 @@ memif_interface_tx_inline (vlib_main_t * vm, vlib_node_runtime_t * node, ring = mq->ring; ring_size = 1 << mq->log2_ring_size; mask = ring_size - 1; -retry: - - /* free consumed buffers */ - head = ring->head; - tail = ring->tail; +retry: - free_slots = ring_size - head + tail; + free_slots = ring->tail - mq->last_tail; + mq->last_tail += free_slots; + slot = (type == MEMIF_RING_S2M) ? ring->head : ring->tail; - while (n_left > 5 && free_slots > 1) - { - CLIB_PREFETCH (memif_get_buffer (mif, ring, (head + 2) & mask), - CLIB_CACHE_LINE_BYTES, STORE); - CLIB_PREFETCH (memif_get_buffer (mif, ring, (head + 3) & mask), - CLIB_CACHE_LINE_BYTES, STORE); - CLIB_PREFETCH (&ring->desc[(head + 4) & mask], CLIB_CACHE_LINE_BYTES, - STORE); - CLIB_PREFETCH (&ring->desc[(head + 5) & mask], CLIB_CACHE_LINE_BYTES, - STORE); - memif_prefetch_buffer_and_data (vm, buffers[2]); - memif_prefetch_buffer_and_data (vm, buffers[3]); - - memif_copy_buffer_to_tx_ring (vm, node, mif, buffers[0], ring, &head, - mask); - memif_copy_buffer_to_tx_ring (vm, node, mif, buffers[1], ring, &head, - mask); - - buffers += 2; - n_left -= 2; - free_slots -= 2; - } + if (type == MEMIF_RING_S2M) + free_slots = ring_size - ring->head + mq->last_tail; + else + free_slots = ring->head - ring->tail; while (n_left && free_slots) { - memif_copy_buffer_to_tx_ring (vm, node, mif, buffers[0], ring, &head, - mask); + memif_desc_t *d0; + void *mb0; + i32 src_off; + u32 bi0, dst_off, src_left, dst_left, bytes_to_copy; + u32 saved_ptd_copy_ops_len = _vec_len (ptd->copy_ops); + u32 saved_ptd_buffers_len = _vec_len (ptd->buffers); + u16 saved_slot = slot; + + CLIB_PREFETCH (&ring->desc[(slot + 8) & mask], CLIB_CACHE_LINE_BYTES, + LOAD); + + d0 = &ring->desc[slot & mask]; + if (PREDICT_FALSE (last_region != d0->region)) + { + last_region_shm = mif->regions[d0->region].shm; + last_region = d0->region; + } + mb0 = last_region_shm + d0->offset; + + dst_off = 0; + + /* slave is the producer, so it should be able to reset buffer length */ + dst_left = (type == MEMIF_RING_S2M) ? mif->run.buffer_size : d0->length; + + if (PREDICT_TRUE (n_left >= 4)) + vlib_prefetch_buffer_header (vlib_get_buffer (vm, buffers[3]), LOAD); + bi0 = buffers[0]; + + next_in_chain: + + b0 = vlib_get_buffer (vm, bi0); + src_off = b0->current_data; + src_left = b0->current_length; + + while (src_left) + { + if (PREDICT_FALSE (dst_left == 0)) + { + if (free_slots) + { + slot++; + free_slots--; + d0->flags = MEMIF_DESC_FLAG_NEXT; + d0 = &ring->desc[slot & mask]; + dst_off = 0; + dst_left = + (type == + MEMIF_RING_S2M) ? mif->run.buffer_size : d0->length; + + if (PREDICT_FALSE (last_region != d0->region)) + { + last_region_shm = mif->regions[d0->region].shm; + last_region = d0->region; + } + mb0 = last_region_shm + d0->offset; + } + else + { + /* we need to rollback vectors before bailing out */ + _vec_len (ptd->buffers) = saved_ptd_buffers_len; + _vec_len (ptd->copy_ops) = saved_ptd_copy_ops_len; + vlib_error_count (vm, node->node_index, + MEMIF_TX_ERROR_ROLLBACK, 1); + slot = saved_slot; + goto no_free_slots; + } + } + bytes_to_copy = clib_min (src_left, dst_left); + memif_add_copy_op (ptd, mb0 + dst_off, bytes_to_copy, src_off, + vec_len (ptd->buffers)); + vec_add1_aligned (ptd->buffers, bi0, CLIB_CACHE_LINE_BYTES); + src_off += bytes_to_copy; + dst_off += bytes_to_copy; + src_left -= bytes_to_copy; + dst_left -= bytes_to_copy; + } + + if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_NEXT_PRESENT)) + { + bi0 = b0->next_buffer; + goto next_in_chain; + } + + d0->length = dst_off; + d0->flags = 0; + + free_slots -= 1; + slot += 1; + buffers++; n_left--; - free_slots--; } +no_free_slots: + + /* copy data */ + n_copy_op = vec_len (ptd->copy_ops); + co = ptd->copy_ops; + while (n_copy_op >= 8) + { + CLIB_PREFETCH (co[4].data, CLIB_CACHE_LINE_BYTES, LOAD); + CLIB_PREFETCH (co[5].data, CLIB_CACHE_LINE_BYTES, LOAD); + CLIB_PREFETCH (co[6].data, CLIB_CACHE_LINE_BYTES, LOAD); + CLIB_PREFETCH (co[7].data, CLIB_CACHE_LINE_BYTES, LOAD); + + b0 = vlib_get_buffer (vm, ptd->buffers[co[0].buffer_vec_index]); + b1 = vlib_get_buffer (vm, ptd->buffers[co[1].buffer_vec_index]); + 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 (co[0].data, b0->data + co[0].buffer_offset, + co[0].data_len); + clib_memcpy (co[1].data, b1->data + co[1].buffer_offset, + co[1].data_len); + clib_memcpy (co[2].data, b2->data + co[2].buffer_offset, + co[2].data_len); + clib_memcpy (co[3].data, b3->data + co[3].buffer_offset, + co[3].data_len); + + co += 4; + n_copy_op -= 4; + } + while (n_copy_op) + { + b0 = vlib_get_buffer (vm, ptd->buffers[co[0].buffer_vec_index]); + clib_memcpy (co[0].data, b0->data + co[0].buffer_offset, + co[0].data_len); + co += 1; + n_copy_op -= 1; + } + + vec_reset_length (ptd->copy_ops); + vec_reset_length (ptd->buffers); CLIB_MEMORY_STORE_BARRIER (); - ring->head = head; + if (type == MEMIF_RING_S2M) + ring->head = slot; + else + ring->tail = slot; if (n_left && n_retries--) goto retry; diff --git a/src/plugins/memif/memif.c b/src/plugins/memif/memif.c index d630f2a6182..c83a955090c 100644 --- a/src/plugins/memif/memif.c +++ b/src/plugins/memif/memif.c @@ -240,6 +240,8 @@ memif_connect (memif_if_t * mif) if (rxmode == VNET_HW_INTERFACE_RX_MODE_POLLING) mq->ring->flags |= MEMIF_RING_FLAG_MASK_INT; + else + vnet_device_input_set_interrupt_pending (vnm, mif->hw_if_index, i); } } @@ -308,7 +310,7 @@ memif_init_regions_and_queues (memif_if_t * mif) ring->desc[j].region = 0; ring->desc[j].offset = buffer_offset + (u32) (slot * mif->run.buffer_size); - ring->desc[j].buffer_length = mif->run.buffer_size; + ring->desc[j].length = mif->run.buffer_size; } } for (i = 0; i < mif->run.num_m2s_rings; i++) @@ -323,7 +325,7 @@ memif_init_regions_and_queues (memif_if_t * mif) ring->desc[j].region = 0; ring->desc[j].offset = buffer_offset + (u32) (slot * mif->run.buffer_size); - ring->desc[j].buffer_length = mif->run.buffer_size; + ring->desc[j].length = mif->run.buffer_size; } } @@ -722,6 +724,35 @@ memif_create_if (vlib_main_t * vm, memif_create_if_args_t * args) DBG ("initializing socket file %s", msf->filename); } + if (mm->per_thread_data == 0) + { + int i; + vlib_buffer_free_list_t *fl; + + vec_validate_aligned (mm->per_thread_data, tm->n_vlib_mains - 1, + CLIB_CACHE_LINE_BYTES); + + fl = + vlib_buffer_get_free_list (vm, VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX); + for (i = 0; i < tm->n_vlib_mains; i++) + { + memif_per_thread_data_t *ptd = + vec_elt_at_index (mm->per_thread_data, i); + vlib_buffer_t *bt = &ptd->buffer_template; + vlib_buffer_init_for_free_list (bt, fl); + bt->flags = VLIB_BUFFER_TOTAL_LENGTH_VALID; + bt->total_length_not_including_first_buffer = 0; + vnet_buffer (bt)->sw_if_index[VLIB_TX] = (u32) ~ 0; + + /* initially prealloc copy_ops so we can use + _vec_len instead of vec_elen */ + vec_validate_aligned (ptd->copy_ops, 0, CLIB_CACHE_LINE_BYTES); + vec_reset_length (ptd->copy_ops); + vec_validate_aligned (ptd->buffers, 0, CLIB_CACHE_LINE_BYTES); + vec_reset_length (ptd->buffers); + } + } + pool_get (mm->interfaces, mif); memset (mif, 0, sizeof (*mif)); mif->dev_instance = mif - mm->interfaces; @@ -860,7 +891,6 @@ static clib_error_t * memif_init (vlib_main_t * vm) { memif_main_t *mm = &memif_main; - vlib_thread_main_t *tm = vlib_get_thread_main (); u8 *filename; memset (mm, 0, sizeof (memif_main_t)); @@ -878,9 +908,6 @@ memif_init (vlib_main_t * vm) MEMIF_DEFAULT_SOCKET_FILENAME, 0); memif_add_socket_file (0, filename); - vec_validate_aligned (mm->rx_buffers, tm->n_vlib_mains - 1, - CLIB_CACHE_LINE_BYTES); - return 0; } diff --git a/src/plugins/memif/memif.h b/src/plugins/memif/memif.h index 11918eabcde..38b54029e46 100644 --- a/src/plugins/memif/memif.h +++ b/src/plugins/memif/memif.h @@ -22,8 +22,8 @@ #define MEMIF_CACHELINE_SIZE 64 #endif -#define MEMIF_COOKIE 0x3E31F10 -#define MEMIF_VERSION_MAJOR 1 +#define MEMIF_COOKIE 0x3E31F20 +#define MEMIF_VERSION_MAJOR 2 #define MEMIF_VERSION_MINOR 0 #define MEMIF_VERSION ((MEMIF_VERSION_MAJOR << 8) | MEMIF_VERSION_MINOR) @@ -58,7 +58,7 @@ typedef enum } memif_interface_mode_t; typedef uint16_t memif_region_index_t; -typedef uint64_t memif_region_offset_t; +typedef uint32_t memif_region_offset_t; typedef uint64_t memif_region_size_t; typedef uint16_t memif_ring_index_t; typedef uint32_t memif_interface_id_t; @@ -148,15 +148,13 @@ typedef struct __attribute__ ((packed)) uint16_t flags; #define MEMIF_DESC_FLAG_NEXT (1 << 0) memif_region_index_t region; - uint32_t buffer_length; uint32_t length; - uint8_t reserved[4]; memif_region_offset_t offset; - uint64_t metadata; + uint32_t metadata; } memif_desc_t; -_Static_assert (sizeof (memif_desc_t) == 32, - "Size of memif_dsct_t must be 32"); +_Static_assert (sizeof (memif_desc_t) == 16, + "Size of memif_dsct_t must be 16 bytes"); #define MEMIF_CACHELINE_ALIGN_MARK(mark) \ uint8_t mark[0] __attribute__((aligned(MEMIF_CACHELINE_SIZE))) diff --git a/src/plugins/memif/node.c b/src/plugins/memif/node.c index 83f1277637e..e8223d12435 100644 --- a/src/plugins/memif/node.c +++ b/src/plugins/memif/node.c @@ -31,6 +31,7 @@ #include <memif/private.h> #define foreach_memif_input_error \ + _(BUFFER_ALLOC_FAIL, "buffer allocation failed") \ _(NOT_IP, "not ip packet") typedef enum @@ -69,155 +70,75 @@ format_memif_input_trace (u8 * s, va_list * args) return s; } -static_always_inline void -memif_prefetch (vlib_main_t * vm, u32 bi) -{ - vlib_buffer_t *b = vlib_get_buffer (vm, bi); - vlib_prefetch_buffer_header (b, STORE); - CLIB_PREFETCH (b->data, CLIB_CACHE_LINE_BYTES, STORE); -} - -static_always_inline void -memif_buffer_add_to_chain (vlib_main_t * vm, u32 bi, u32 first_bi, - u32 prev_bi) +static_always_inline u32 +memif_next_from_ip_hdr (vlib_node_runtime_t * node, vlib_buffer_t * b) { - vlib_buffer_t *b = vlib_get_buffer (vm, bi); - vlib_buffer_t *first_b = vlib_get_buffer (vm, first_bi); - vlib_buffer_t *prev_b = vlib_get_buffer (vm, prev_bi); - - /* update first buffer */ - first_b->total_length_not_including_first_buffer += b->current_length; + u8 *ptr = vlib_buffer_get_current (b); + u8 v = *ptr & 0xf0; - /* update previous buffer */ - prev_b->next_buffer = bi; - prev_b->flags |= VLIB_BUFFER_NEXT_PRESENT; + 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; - /* update current buffer */ - b->next_buffer = 0; + b->error = node->errors[MEMIF_INPUT_ERROR_NOT_IP]; + return VNET_DEVICE_INPUT_NEXT_DROP; } -/** - * @brief Copy buffer from rx ring - * - * @param * vm (in) - * @param * mif (in) pointer to memif interface - * @param * ring (in) pointer to memif ring - * @param * rd (in) pointer to ring data - * @param ring_size (in) ring size - * @param * n_free_bufs (in/out) the number of free vlib buffers available - * @param ** first_b (out) the first vlib buffer pointer - * @param * first_bi (out) the first vlib buffer index - * @param * bi (in/out) the current buffer index - * #param * num_slots (in/out) the number of descriptors available to read - * - * @return total bytes read from rx ring also written to vlib buffers - */ -static_always_inline uword -memif_copy_buffer_from_rx_ring (vlib_main_t * vm, memif_if_t * mif, - memif_ring_t * ring, memif_queue_t * mq, - u16 ring_size, u32 n_buffer_bytes, - u32 * n_free_bufs, vlib_buffer_t ** first_b, - u32 * first_bi, u32 * bi, u16 * num_slots) +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) { - memif_main_t *nm = &memif_main; - u32 thread_index = vlib_get_thread_index (); - u32 total_bytes = 0, offset = 0; - u32 data_len; - u32 bytes_to_copy; - void *mb; - vlib_buffer_t *b; - u16 mask = ring_size - 1; - u32 prev_bi; - u16 last_head; - - while (*num_slots) - { - data_len = ring->desc[mq->last_head & mask].length; - while (data_len && (*n_free_bufs)) - { - /* get empty buffer */ - u32 last_buf = vec_len (nm->rx_buffers[thread_index]) - 1; - prev_bi = *bi; - *bi = nm->rx_buffers[thread_index][last_buf]; - b = vlib_get_buffer (vm, *bi); - /* Clear the error first to ensure following node forget setting it */ - /* It will cause null-node error counter increasement instead of potential crash */ - b->error = 0x0; - _vec_len (nm->rx_buffers[thread_index]) = last_buf; - (*n_free_bufs)--; - if (PREDICT_FALSE (*n_free_bufs == 0)) - { - *n_free_bufs += - vlib_buffer_alloc (vm, - &nm->rx_buffers[thread_index] - [*n_free_bufs], ring_size); - _vec_len (nm->rx_buffers[thread_index]) = *n_free_bufs; - } - - if (last_buf > 4) - { - memif_prefetch (vm, nm->rx_buffers[thread_index][last_buf - 2]); - memif_prefetch (vm, nm->rx_buffers[thread_index][last_buf - 3]); - } - - /* copy buffer */ - bytes_to_copy = - data_len > n_buffer_bytes ? n_buffer_bytes : data_len; - b->current_data = 0; - mb = memif_get_buffer (mif, ring, mq->last_head & mask); - clib_memcpy (vlib_buffer_get_current (b), mb + offset, - CLIB_CACHE_LINE_BYTES); - if (bytes_to_copy > CLIB_CACHE_LINE_BYTES) - clib_memcpy (vlib_buffer_get_current (b) + CLIB_CACHE_LINE_BYTES, - mb + CLIB_CACHE_LINE_BYTES + offset, - bytes_to_copy - CLIB_CACHE_LINE_BYTES); - - /* fill buffer header */ - b->current_length = bytes_to_copy; - - if (total_bytes == 0) - { - /* fill buffer metadata */ - b->total_length_not_including_first_buffer = 0; - b->flags = VLIB_BUFFER_TOTAL_LENGTH_VALID; - vnet_buffer (b)->sw_if_index[VLIB_RX] = mif->sw_if_index; - vnet_buffer (b)->sw_if_index[VLIB_TX] = (u32) ~ 0; - *first_bi = *bi; - *first_b = vlib_get_buffer (vm, *first_bi); - } - else - memif_buffer_add_to_chain (vm, *bi, *first_bi, prev_bi); + VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b); - offset += bytes_to_copy; - total_bytes += bytes_to_copy; - data_len -= bytes_to_copy; - } - last_head = mq->last_head; - /* Advance to next descriptor */ - mq->last_head++; - offset = 0; - (*num_slots)--; - if ((ring->desc[last_head & mask].flags & MEMIF_DESC_FLAG_NEXT) == 0) - break; + if (PREDICT_TRUE (b != 0)) + { + memif_input_trace_t *tr; + vlib_trace_buffer (vm, node, next, b, /* follow_chain */ 0); + 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; } - - return (total_bytes); } +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 u32 -memif_next_from_ip_hdr (vlib_node_runtime_t * node, vlib_buffer_t * b) +static_always_inline void +memif_add_to_chain (vlib_main_t * vm, vlib_buffer_t * b, u32 * buffers, + u32 buffer_size) { - u8 *ptr = vlib_buffer_get_current (b); - u8 v = *ptr & 0xf0; + vlib_buffer_t *seg = b; + i32 bytes_left = b->current_length - buffer_size + b->current_data; - 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; + if (PREDICT_TRUE (bytes_left <= 0)) + return; - b->error = node->errors[MEMIF_INPUT_ERROR_NOT_IP]; - return VNET_DEVICE_INPUT_NEXT_DROP; + 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 uword @@ -227,301 +148,347 @@ memif_device_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node, 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 head; + u16 buffer_size = VLIB_BUFFER_DEFAULT_FREE_LIST_BYTES; u32 next_index; uword n_trace = vlib_get_trace_count (vm, node); - memif_main_t *nm = &memif_main; - u32 n_rx_packets = 0; - u32 n_rx_bytes = 0; - u32 *to_next = 0; - u32 n_free_bufs; - u32 b0_total, b1_total; + u32 n_rx_packets = 0, n_rx_bytes = 0; + u32 n_left, *to_next = 0; + u32 bi0, bi1, bi2, bi3; + vlib_buffer_t *b0, *b1, *b2, *b3; u32 thread_index = vlib_get_thread_index (); - u16 ring_size, mask, num_slots; - u32 n_buffer_bytes = vlib_buffer_free_list_buffer_size (vm, - VLIB_BUFFER_DEFAULT_FREE_LIST_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; + i16 start_offset; + u16 n_buffers = 0, n_alloc; + memif_copy_op_t *co; + memif_packet_op_t *po; + memif_region_index_t last_region = ~0; + void *last_region_shm = 0; mq = vec_elt_at_index (mif->rx_queues, qid); ring = mq->ring; ring_size = 1 << mq->log2_ring_size; mask = ring_size - 1; - if (mode == MEMIF_INTERFACE_MODE_IP) + 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; + last_slot = (type == MEMIF_RING_S2M) ? ring->head : ring->tail; + if (cur_slot == last_slot) + goto refill; + n_slots = last_slot - cur_slot; + + /* construct copy and packet vector out of ring slots */ + while (n_slots && n_rx_packets < MEMIF_RX_VECTOR_SZ) + { + u32 dst_off, src_off, n_bytes_left; + u16 s0; + memif_desc_t *d0; + void *mb0; + po = ptd->packet_ops + n_rx_packets; + n_rx_packets++; + po->first_buffer_vec_index = n_buffers++; + po->packet_len = 0; + src_off = 0; + dst_off = start_offset; + + next_slot: + CLIB_PREFETCH (&ring->desc[(cur_slot + 8) & mask], + CLIB_CACHE_LINE_BYTES, LOAD); + s0 = cur_slot & mask; + d0 = &ring->desc[s0]; + n_bytes_left = d0->length; + + /* slave resets buffer length, + * so it can produce full size buffer for master + */ + if (type == MEMIF_RING_M2S) + d0->length = mif->run.buffer_size; + + po->packet_len += n_bytes_left; + if (PREDICT_FALSE (last_region != d0->region)) + { + last_region_shm = mif->regions[d0->region].shm; + last_region = d0->region; + } + mb0 = last_region_shm + d0->offset; + + 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)); + + cur_slot++; + n_slots--; + if ((d0->flags & MEMIF_DESC_FLAG_NEXT) && n_slots) + { + src_off = 0; + goto next_slot; + } + } + + /* allocate free buffers */ + vec_validate_aligned (ptd->buffers, n_buffers - 1, CLIB_CACHE_LINE_BYTES); + n_alloc = vlib_buffer_alloc (vm, ptd->buffers, n_buffers); + if (PREDICT_FALSE (n_alloc != n_buffers)) { - next_index = VNET_DEVICE_INPUT_NEXT_IP6_INPUT; + 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; } - else + + /* copy data */ + n_left = vec_len (ptd->copy_ops); + co = ptd->copy_ops; + while (n_left >= 8) + { + CLIB_PREFETCH (co[4].data, CLIB_CACHE_LINE_BYTES, LOAD); + CLIB_PREFETCH (co[5].data, CLIB_CACHE_LINE_BYTES, LOAD); + CLIB_PREFETCH (co[6].data, CLIB_CACHE_LINE_BYTES, LOAD); + CLIB_PREFETCH (co[7].data, CLIB_CACHE_LINE_BYTES, LOAD); + + b0 = vlib_get_buffer (vm, ptd->buffers[co[0].buffer_vec_index]); + b1 = vlib_get_buffer (vm, ptd->buffers[co[1].buffer_vec_index]); + 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); + + co += 4; + n_left -= 4; + } + while (n_left) { - next_index = VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT; + 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); + co += 1; + n_left -= 1; } - n_free_bufs = vec_len (nm->rx_buffers[thread_index]); - if (PREDICT_FALSE (n_free_bufs < ring_size)) + /* release slots from the ring */ + if (type == MEMIF_RING_S2M) { - vec_validate (nm->rx_buffers[thread_index], - ring_size + n_free_bufs - 1); - n_free_bufs += - vlib_buffer_alloc (vm, &nm->rx_buffers[thread_index][n_free_bufs], - ring_size); - _vec_len (nm->rx_buffers[thread_index]) = n_free_bufs; + CLIB_MEMORY_STORE_BARRIER (); + ring->tail = mq->last_head = cur_slot; + } + else + { + mq->last_tail = cur_slot; } - head = ring->head; - mq->last_head = ring->tail; - if (head == mq->last_head) - return 0; + u32 n_from = n_rx_packets; + po = ptd->packet_ops; - num_slots = head - mq->last_head; + vnet_buffer (bt)->sw_if_index[VLIB_RX] = mif->sw_if_index; + bt->current_data = start_offset; - while (num_slots) + while (n_from) { u32 n_left_to_next; - u32 next0 = next_index; - u32 next1 = next_index; - vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + u32 next0, next1, next2, next3; - while (num_slots > 11 && n_left_to_next > 2) + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + while (n_from >= 8 && n_left_to_next >= 4) { - CLIB_PREFETCH (memif_get_buffer - (mif, ring, (mq->last_head + 2) & mask), - CLIB_CACHE_LINE_BYTES, LOAD); - CLIB_PREFETCH (memif_get_buffer - (mif, ring, (mq->last_head + 3) & mask), - CLIB_CACHE_LINE_BYTES, LOAD); - CLIB_PREFETCH (&ring->desc[(mq->last_head + 4) & mask], - CLIB_CACHE_LINE_BYTES, LOAD); - CLIB_PREFETCH (&ring->desc[(mq->last_head + 5) & mask], - CLIB_CACHE_LINE_BYTES, LOAD); - - vlib_buffer_t *first_b0 = 0; - u32 bi0 = 0, first_bi0 = 0; - b0_total = memif_copy_buffer_from_rx_ring (vm, mif, ring, mq, - ring_size, - n_buffer_bytes, - &n_free_bufs, &first_b0, - &first_bi0, &bi0, - &num_slots); - - vlib_buffer_t *first_b1 = 0; - u32 bi1 = 0, first_bi1 = 0; - b1_total = memif_copy_buffer_from_rx_ring (vm, mif, ring, mq, - ring_size, - n_buffer_bytes, - &n_free_bufs, &first_b1, - &first_bi1, &bi1, - &num_slots); - - if (PREDICT_FALSE (!first_bi0 || !first_bi1)) - { - goto _invalid_pkt01; - } - /* enqueue buffer */ - to_next[0] = first_bi0; - to_next[1] = first_bi1; - to_next += 2; - n_left_to_next -= 2; + 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, first_b0); - next1 = memif_next_from_ip_hdr (node, first_b1); + 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 = next1 = mif->per_interface_next_index; - else - /* redirect if feature path - * enabled */ - vnet_feature_start_device_input_x2 (mif->sw_if_index, - &next0, &next1, - first_b0, first_b1); - } - - /* trace */ - VLIB_BUFFER_TRACE_TRAJECTORY_INIT (first_b0); - VLIB_BUFFER_TRACE_TRAJECTORY_INIT (first_b1); - - if (PREDICT_FALSE (n_trace > 0)) - { - /* b0 */ - if (PREDICT_TRUE (first_b0 != 0)) { - memif_input_trace_t *tr; - vlib_trace_buffer (vm, node, next0, first_b0, - /* follow_chain */ 0); - vlib_set_trace_count (vm, node, --n_trace); - tr = vlib_add_trace (vm, node, first_b0, sizeof (*tr)); - tr->next_index = next0; - tr->hw_if_index = mif->hw_if_index; - tr->ring = qid; + next0 = mif->per_interface_next_index; + next1 = mif->per_interface_next_index; + next2 = mif->per_interface_next_index; + next3 = mif->per_interface_next_index; } - if (n_trace) + else { - /* b1 */ - if (PREDICT_TRUE (first_b1 != 0)) - { - memif_input_trace_t *tr; - vlib_trace_buffer (vm, node, next1, first_b1, - /* follow_chain */ 0); - vlib_set_trace_count (vm, node, --n_trace); - tr = vlib_add_trace (vm, node, first_b1, sizeof (*tr)); - tr->next_index = next1; - tr->hw_if_index = mif->hw_if_index; - tr->ring = qid; - } + 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); } } - /* enqueue */ - vlib_validate_buffer_enqueue_x2 (vm, node, next_index, to_next, - n_left_to_next, first_bi0, - first_bi1, next0, next1); - - /* next packet */ - n_rx_packets += 2; - n_rx_bytes += b0_total + b1_total; - - continue; - _invalid_pkt01: - if (!first_bi0 && !first_bi1) - { - continue; - } - if (first_bi1) - { - first_bi0 = first_bi1; - first_b0 = first_b1; - bi0 = bi1; - b0_total = b1_total; - } - - if (mode == MEMIF_INTERFACE_MODE_IP) - { - next0 = memif_next_from_ip_hdr (node, first_b0); - } - else if (mode == MEMIF_INTERFACE_MODE_ETHERNET) - { - if (PREDICT_FALSE (mif->per_interface_next_index != ~0)) - next0 = mif->per_interface_next_index; - else - /* redirect if feature path - * enabled */ - vnet_feature_start_device_input_x1 (mif->sw_if_index, &next0, - first_b0); - } - /* trace */ - VLIB_BUFFER_TRACE_TRAJECTORY_INIT (first_b0); - if (PREDICT_FALSE (n_trace > 0)) { - if (PREDICT_TRUE (first_b0 != 0)) - { - memif_input_trace_t *tr; - vlib_trace_buffer (vm, node, next0, first_b0, - /* follow_chain */ 0); - vlib_set_trace_count (vm, node, --n_trace); - tr = vlib_add_trace (vm, node, first_b0, sizeof (*tr)); - tr->next_index = next0; - tr->hw_if_index = mif->hw_if_index; - tr->ring = qid; - } + 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; + } + while (n_from && n_left_to_next) + { /* enqueue buffer */ - to_next[0] = first_bi0; + u32 fbvi0 = po->first_buffer_vec_index; + to_next[0] = bi0 = ptd->buffers[fbvi0]; to_next += 1; n_left_to_next--; - /* enqueue */ - vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, - n_left_to_next, first_bi0, next0); + b0 = vlib_get_buffer (vm, bi0); + clib_memcpy (b0, bt, 64); + b0->current_length = po->packet_len; - /* next packet */ - n_rx_packets++; - n_rx_bytes += b0_total; - } - while (num_slots && n_left_to_next) - { - vlib_buffer_t *first_b0 = 0; - u32 bi0 = 0, first_bi0 = 0; - b0_total = memif_copy_buffer_from_rx_ring (vm, mif, ring, mq, - ring_size, - n_buffer_bytes, - &n_free_bufs, &first_b0, - &first_bi0, &bi0, - &num_slots); - if (PREDICT_FALSE (!first_bi0)) - { - goto _invalid_pkt0; - } + memif_add_to_chain (vm, b0, ptd->buffers + fbvi0 + 1, buffer_size); if (mode == MEMIF_INTERFACE_MODE_IP) { - next0 = memif_next_from_ip_hdr (node, first_b0); + 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 - /* redirect if feature path - * enabled */ - vnet_feature_start_device_input_x1 (mif->sw_if_index, - &next0, first_b0); - } - - /* trace */ - VLIB_BUFFER_TRACE_TRAJECTORY_INIT (first_b0); - - if (PREDICT_FALSE (n_trace > 0)) - { - if (PREDICT_TRUE (first_b0 != 0)) { - memif_input_trace_t *tr; - vlib_trace_buffer (vm, node, next0, first_b0, - /* follow_chain */ 0); - vlib_set_trace_count (vm, node, --n_trace); - tr = vlib_add_trace (vm, node, first_b0, sizeof (*tr)); - tr->next_index = next0; - tr->hw_if_index = mif->hw_if_index; - tr->ring = qid; + next0 = next_index; + /* redirect if feature path enabled */ + vnet_feature_start_device_input_x1 (mif->sw_if_index, + &next0, b0); } + } - /* enqueue buffer */ - to_next[0] = first_bi0; - to_next += 1; - n_left_to_next--; + /* 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, first_bi0, next0); - - /* next packet */ - n_rx_packets++; - n_rx_bytes += b0_total; - continue; - _invalid_pkt0: - ; - } - if (PREDICT_TRUE (n_rx_packets != 0)) - { - vlib_put_next_frame (vm, node, next_index, n_left_to_next); + n_left_to_next, bi0, next0); + + /* next */ + n_from--; + po++; } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); } - CLIB_MEMORY_STORE_BARRIER (); - ring->tail = mq->last_head; 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; } @@ -531,14 +498,14 @@ CLIB_MULTIARCH_FN (memif_input_fn) (vlib_main_t * vm, vlib_frame_t * frame) { u32 n_rx = 0; - memif_main_t *nm = &memif_main; + memif_main_t *mm = &memif_main; vnet_device_input_runtime_t *rt = (void *) node->runtime_data; vnet_device_and_queue_t *dq; foreach_device_and_queue (dq, rt->devices_and_queues) { memif_if_t *mif; - mif = vec_elt_at_index (nm->interfaces, dq->dev_instance); + mif = vec_elt_at_index (mm->interfaces, dq->dev_instance); if ((mif->flags & MEMIF_IF_FLAG_ADMIN_UP) && (mif->flags & MEMIF_IF_FLAG_CONNECTED)) { diff --git a/src/plugins/memif/private.h b/src/plugins/memif/private.h index b7c18c93e2a..f4ace4cee5d 100644 --- a/src/plugins/memif/private.h +++ b/src/plugins/memif/private.h @@ -176,6 +176,35 @@ typedef struct typedef struct { + u32 packet_len; + u16 first_buffer_vec_index; +} memif_packet_op_t; + +typedef struct +{ + void *data; + u32 data_len; + i16 buffer_offset; + u16 buffer_vec_index; +} memif_copy_op_t; + +#define MEMIF_RX_VECTOR_SZ VLIB_FRAME_SIZE + +typedef struct +{ + CLIB_CACHE_LINE_ALIGN_MARK (cacheline0); + + /* copy vector */ + memif_packet_op_t packet_ops[MEMIF_RX_VECTOR_SZ]; + memif_copy_op_t *copy_ops; + u32 *buffers; + + /* buffer template */ + vlib_buffer_t buffer_template; +} memif_per_thread_data_t; + +typedef struct +{ CLIB_CACHE_LINE_ALIGN_MARK (cacheline0); /** API message ID base */ @@ -188,8 +217,8 @@ typedef struct memif_socket_file_t *socket_files; uword *socket_file_index_by_sock_id; /* map user socket id to pool idx */ - /* rx buffer cache */ - u32 **rx_buffers; + /* per thread data */ + memif_per_thread_data_t *per_thread_data; } memif_main_t; |