#include <dpdk/device/dpdk_priv.h>
-#ifndef CLIB_MULTIARCH_VARIANT
static char *dpdk_error_strings[] = {
#define _(n,s) s,
foreach_dpdk_error
#undef _
};
-#endif
-STATIC_ASSERT (VNET_DEVICE_INPUT_NEXT_IP4_INPUT - 1 ==
- VNET_DEVICE_INPUT_NEXT_IP4_NCS_INPUT,
- "IP4_INPUT must follow IP4_NCS_INPUT");
-
-enum
-{
- DPDK_RX_F_CKSUM_GOOD = 7,
- DPDK_RX_F_CKSUM_BAD = 4,
- DPDK_RX_F_FDIR = 2,
-};
-
-/* currently we are just copying bit positions from DPDK, but that
- might change in future, in case we strart to be interested in something
- stored in upper bytes. Curently we store only lower byte for perf reasons */
-STATIC_ASSERT (1 << DPDK_RX_F_CKSUM_GOOD == PKT_RX_IP_CKSUM_GOOD, "");
-STATIC_ASSERT (1 << DPDK_RX_F_CKSUM_BAD == PKT_RX_IP_CKSUM_BAD, "");
-STATIC_ASSERT (1 << DPDK_RX_F_FDIR == PKT_RX_FDIR, "");
-STATIC_ASSERT ((PKT_RX_IP_CKSUM_GOOD | PKT_RX_IP_CKSUM_BAD | PKT_RX_FDIR) <
+/* make sure all flags we need are stored in lower 8 bits */
+STATIC_ASSERT ((PKT_RX_IP_CKSUM_BAD | PKT_RX_FDIR) <
256, "dpdk flags not un lower byte, fix needed");
-always_inline u32
-dpdk_rx_next (vlib_node_runtime_t * node, u16 etype, u8 flags)
-{
- if (PREDICT_TRUE (etype == clib_host_to_net_u16 (ETHERNET_TYPE_IP4)))
- {
- /* keep it branchless */
- u32 is_good = (flags >> DPDK_RX_F_CKSUM_GOOD) & 1;
- return VNET_DEVICE_INPUT_NEXT_IP4_INPUT - is_good;
- }
- else if (PREDICT_TRUE (etype == clib_host_to_net_u16 (ETHERNET_TYPE_IP6)))
- return VNET_DEVICE_INPUT_NEXT_IP6_INPUT;
- else if (PREDICT_TRUE (etype == clib_host_to_net_u16 (ETHERNET_TYPE_MPLS)))
- return VNET_DEVICE_INPUT_NEXT_MPLS_INPUT;
- else
- return VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT;
-}
-
static_always_inline uword
dpdk_process_subseq_segs (vlib_main_t * vm, vlib_buffer_t * b,
- struct rte_mbuf * mb, vlib_buffer_free_list_t * fl)
+ struct rte_mbuf *mb, vlib_buffer_free_list_t * fl)
{
u8 nb_seg = 1;
struct rte_mbuf *mb_seg = 0;
CLIB_PREFETCH (b, CLIB_CACHE_LINE_BYTES, LOAD);
}
-static_always_inline void
-dpdk_prefetch_buffer_data_x4 (struct rte_mbuf *mb[])
-{
- vlib_buffer_t *b;
- b = vlib_buffer_from_rte_mbuf (mb[0]);
- CLIB_PREFETCH (b->data, CLIB_CACHE_LINE_BYTES, LOAD);
- b = vlib_buffer_from_rte_mbuf (mb[1]);
- CLIB_PREFETCH (b->data, CLIB_CACHE_LINE_BYTES, LOAD);
- b = vlib_buffer_from_rte_mbuf (mb[2]);
- CLIB_PREFETCH (b->data, CLIB_CACHE_LINE_BYTES, LOAD);
- b = vlib_buffer_from_rte_mbuf (mb[3]);
- CLIB_PREFETCH (b->data, CLIB_CACHE_LINE_BYTES, LOAD);
-}
-
-static inline void
-poll_rate_limit (dpdk_main_t * dm)
-{
- /* Limit the poll rate by sleeping for N msec between polls */
- if (PREDICT_FALSE (dm->poll_sleep_usec != 0))
- {
- struct timespec ts, tsrem;
-
- ts.tv_sec = 0;
- ts.tv_nsec = 1000 * dm->poll_sleep_usec;
-
- while (nanosleep (&ts, &tsrem) < 0)
- {
- ts = tsrem;
- }
- }
-}
-
/** \brief Main DPDK input node
@node dpdk-input
<code>xd->per_interface_next_index</code>
*/
-static_always_inline void
-dpdk_mbuf_to_buffer_index_x4 (vlib_main_t * vm, struct rte_mbuf **mb,
- u32 * buffers)
-{
-#ifdef CLIB_HAVE_VEC256
- vlib_buffer_main_t *bm = &buffer_main;
- u64x4 v = *(u64x4 *) mb;
- u32x8 v2, mask = { 0, 2, 4, 6, 1, 3, 5, 7 };
-
- /* load 4 pointers into 256-bit register */
- v = u64x4_load_unaligned (mb);
-
- /* vlib_buffer_t is straight after rte_mbuf so advance all 4
- pointers for size of rte_mbuf */
- v += u64x4_splat (sizeof (struct rte_mbuf));
-
- /* calculate 4 buffer indices in paralled */
- v = (v - u64x4_splat (bm->buffer_mem_start)) >> CLIB_LOG2_CACHE_LINE_BYTES;
-
- /* permute 256-bit register so lower u32s of each buffer index are
- * placed into lower 128-bits */
- v2 = u32x8_permute ((u32x8) v, mask);
-
- /* extract lower 128-bits and save them to the array of buffer indices */
- u32x4_store_unaligned (u32x8_extract_lo (v2), buffers);
-#else
- /* equivalent non-nector implementation */
- buffers[0] = vlib_get_buffer_index (vm, vlib_buffer_from_rte_mbuf (mb[0]));
- buffers[1] = vlib_get_buffer_index (vm, vlib_buffer_from_rte_mbuf (mb[1]));
- buffers[2] = vlib_get_buffer_index (vm, vlib_buffer_from_rte_mbuf (mb[2]));
- buffers[3] = vlib_get_buffer_index (vm, vlib_buffer_from_rte_mbuf (mb[3]));
-#endif
-}
-
static_always_inline u8
dpdk_ol_flags_extract (struct rte_mbuf **mb, u8 * flags, int count)
{
vlib_buffer_free_list_t *fl;
struct rte_mbuf **mb = ptd->mbufs;
uword n_bytes = 0;
- i16 off;
u8 *flags, or_flags = 0;
- u16 *next;
- fl = vlib_buffer_get_free_list (vm, VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX);
+ if (maybe_multiseg)
+ fl = vlib_buffer_get_free_list (vm, VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX);
mb = ptd->mbufs;
flags = ptd->flags;
- next = ptd->next;
while (n_left >= 8)
{
- CLIB_PREFETCH (mb + 8, CLIB_CACHE_LINE_BYTES, LOAD);
-
dpdk_prefetch_buffer_x4 (mb + 4);
b[0] = vlib_buffer_from_rte_mbuf (mb[0]);
or_flags |= dpdk_ol_flags_extract (mb, flags, 4);
flags += 4;
- /* we temporary store relative offset of ethertype into next[x]
- so we can prefetch and get it faster later */
-
- off = mb[0]->data_off;
- next[0] = off + STRUCT_OFFSET_OF (ethernet_header_t, type);
- off -= RTE_PKTMBUF_HEADROOM;
- vnet_buffer (b[0])->l2_hdr_offset = off;
- b[0]->current_data = off;
-
- off = mb[0]->data_off;
- next[1] = off + STRUCT_OFFSET_OF (ethernet_header_t, type);
- off -= RTE_PKTMBUF_HEADROOM;
- vnet_buffer (b[1])->l2_hdr_offset = off;
- b[1]->current_data = off;
-
- off = mb[0]->data_off;
- next[2] = off + STRUCT_OFFSET_OF (ethernet_header_t, type);
- off -= RTE_PKTMBUF_HEADROOM;
- vnet_buffer (b[2])->l2_hdr_offset = off;
- b[2]->current_data = off;
-
- off = mb[0]->data_off;
- next[3] = off + STRUCT_OFFSET_OF (ethernet_header_t, type);
- off -= RTE_PKTMBUF_HEADROOM;
- vnet_buffer (b[3])->l2_hdr_offset = off;
- b[3]->current_data = off;
-
- b[0]->current_length = mb[0]->data_len;
- b[1]->current_length = mb[1]->data_len;
- b[2]->current_length = mb[2]->data_len;
- b[3]->current_length = mb[3]->data_len;
-
- n_bytes += mb[0]->data_len;
- n_bytes += mb[1]->data_len;
- n_bytes += mb[2]->data_len;
- n_bytes += mb[3]->data_len;
+ b[0]->current_data = mb[0]->data_off - RTE_PKTMBUF_HEADROOM;
+ n_bytes += b[0]->current_length = mb[0]->data_len;
+
+ b[1]->current_data = mb[1]->data_off - RTE_PKTMBUF_HEADROOM;
+ n_bytes += b[1]->current_length = mb[1]->data_len;
+
+ b[2]->current_data = mb[2]->data_off - RTE_PKTMBUF_HEADROOM;
+ n_bytes += b[2]->current_length = mb[2]->data_len;
+
+ b[3]->current_data = mb[3]->data_off - RTE_PKTMBUF_HEADROOM;
+ n_bytes += b[3]->current_length = mb[3]->data_len;
if (maybe_multiseg)
{
/* next */
mb += 4;
n_left -= 4;
- next += 4;
}
while (n_left)
{
b[0] = vlib_buffer_from_rte_mbuf (mb[0]);
- clib_memcpy (b[0], &ptd->buffer_template, 64);
+ clib_memcpy_fast (b[0], &ptd->buffer_template, 64);
or_flags |= dpdk_ol_flags_extract (mb, flags, 1);
flags += 1;
- off = mb[0]->data_off;
- next[0] = off + STRUCT_OFFSET_OF (ethernet_header_t, type);
- off -= RTE_PKTMBUF_HEADROOM;
- vnet_buffer (b[0])->l2_hdr_offset = off;
- b[0]->current_data = off;
- b[0]->current_length = mb[0]->data_len;
- n_bytes += mb[0]->data_len;
+ b[0]->current_data = mb[0]->data_off - RTE_PKTMBUF_HEADROOM;
+ n_bytes += b[0]->current_length = mb[0]->data_len;
+
if (maybe_multiseg)
n_bytes += dpdk_process_subseq_segs (vm, b[0], mb[0], fl);
VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b[0]);
/* next */
mb += 1;
n_left -= 1;
- next += 1;
}
*or_flagsp = or_flags;
}
static_always_inline void
-dpdk_set_next_from_etype (vlib_main_t * vm, vlib_node_runtime_t * node,
- dpdk_per_thread_data_t * ptd, uword n_rx_packets)
+dpdk_process_flow_offload (dpdk_device_t * xd, dpdk_per_thread_data_t * ptd,
+ uword n_rx_packets)
{
- vlib_buffer_t *b[4];
- i16 adv[4];
- u16 etype[4];
- struct rte_mbuf **mb = ptd->mbufs;
- u8 *flags = ptd->flags;
- u16 *next = ptd->next;
- u32 n_left = n_rx_packets;
+ uword n;
+ dpdk_flow_lookup_entry_t *fle;
+ vlib_buffer_t *b0;
- while (n_left >= 12)
+ /* TODO prefetch and quad-loop */
+ for (n = 0; n < n_rx_packets; n++)
{
- dpdk_prefetch_buffer_data_x4 (mb + 8);
- dpdk_prefetch_buffer_x4 (mb + 8);
+ if ((ptd->flags[n] & (1 << PKT_RX_FDIR)) == 0)
+ continue;
- b[0] = vlib_buffer_from_rte_mbuf (mb[0]);
- b[1] = vlib_buffer_from_rte_mbuf (mb[1]);
- b[2] = vlib_buffer_from_rte_mbuf (mb[2]);
- b[3] = vlib_buffer_from_rte_mbuf (mb[3]);
- etype[0] = *(u16 *) ((u8 *) mb[0] + next[0] + sizeof (vlib_buffer_t));
- etype[1] = *(u16 *) ((u8 *) mb[1] + next[1] + sizeof (vlib_buffer_t));
- etype[2] = *(u16 *) ((u8 *) mb[2] + next[2] + sizeof (vlib_buffer_t));
- etype[3] = *(u16 *) ((u8 *) mb[3] + next[3] + sizeof (vlib_buffer_t));
- next[0] = dpdk_rx_next (node, etype[0], flags[0]);
- next[1] = dpdk_rx_next (node, etype[1], flags[1]);
- next[2] = dpdk_rx_next (node, etype[2], flags[2]);
- next[3] = dpdk_rx_next (node, etype[3], flags[3]);
- adv[0] = device_input_next_node_advance[next[0]];
- adv[1] = device_input_next_node_advance[next[1]];
- adv[2] = device_input_next_node_advance[next[2]];
- adv[3] = device_input_next_node_advance[next[3]];
- b[0]->current_data += adv[0];
- b[1]->current_data += adv[1];
- b[2]->current_data += adv[2];
- b[3]->current_data += adv[3];
- b[0]->current_length -= adv[0];
- b[1]->current_length -= adv[1];
- b[2]->current_length -= adv[2];
- b[3]->current_length -= adv[3];
+ fle = pool_elt_at_index (xd->flow_lookup_entries,
+ ptd->mbufs[n]->hash.fdir.hi);
- /* next */
- next += 4;
- mb += 4;
- n_left -= 4;
- flags += 4;
- }
+ if (fle->next_index != (u16) ~ 0)
+ ptd->next[n] = fle->next_index;
- while (n_left)
- {
- b[0] = vlib_buffer_from_rte_mbuf (mb[0]);
- next[0] = *(u16 *) ((u8 *) mb[0] + next[0] + sizeof (vlib_buffer_t));
- next[0] = dpdk_rx_next (node, next[0], flags[0]);
- adv[0] = device_input_next_node_advance[next[0]];
- b[0]->current_data += adv[0];
- b[0]->current_length -= adv[0];
+ if (fle->flow_id != ~0)
+ {
+ b0 = vlib_buffer_from_rte_mbuf (ptd->mbufs[n]);
+ b0->flow_id = fle->flow_id;
+ }
- /* next */
- next += 1;
- mb += 1;
- n_left -= 1;
- flags += 1;
+ if (fle->buffer_advance != ~0)
+ {
+ b0 = vlib_buffer_from_rte_mbuf (ptd->mbufs[n]);
+ vlib_buffer_advance (b0, fle->buffer_advance);
+ }
}
}
u32 next_index = VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT;
struct rte_mbuf **mb;
vlib_buffer_t *b0;
- int known_next = 0;
u16 *next;
u8 or_flags;
u32 n;
+ int single_next = 0;
dpdk_per_thread_data_t *ptd = vec_elt_at_index (dm->per_thread_data,
thread_index);
/* get up to DPDK_RX_BURST_SZ buffers from PMD */
while (n_rx_packets < DPDK_RX_BURST_SZ)
{
- n = rte_eth_rx_burst (xd->device_index, queue_id,
+ n = rte_eth_rx_burst (xd->port_id, queue_id,
ptd->mbufs + n_rx_packets,
DPDK_RX_BURST_SZ - n_rx_packets);
n_rx_packets += n;
/* as DPDK is allocating empty buffers from mempool provided before interface
start for each queue, it is safe to store this in the template */
bt->buffer_pool_index = xd->buffer_pool_for_queue[queue_id];
+ vnet_buffer (bt)->feature_arc_index = 0;
+ bt->current_config_index = 0;
/* receive burst of packets from DPDK PMD */
if (PREDICT_FALSE (xd->per_interface_next_index != ~0))
- {
- known_next = 1;
- next_index = xd->per_interface_next_index;
- }
+ next_index = xd->per_interface_next_index;
- /* as all packets belong to thr same interface feature arc lookup
+ /* as all packets belong to the same interface feature arc lookup
can be don once and result stored in the buffer template */
if (PREDICT_FALSE (vnet_device_input_have_features (xd->sw_if_index)))
- {
- vnet_feature_start_device_input_x1 (xd->sw_if_index, &next_index, bt);
- known_next = 1;
- }
+ vnet_feature_start_device_input_x1 (xd->sw_if_index, &next_index, bt);
if (xd->flags & DPDK_DEVICE_FLAG_MAYBE_MULTISEG)
n_rx_bytes = dpdk_process_rx_burst (vm, ptd, n_rx_packets, 1, &or_flags);
else
n_rx_bytes = dpdk_process_rx_burst (vm, ptd, n_rx_packets, 0, &or_flags);
- if (PREDICT_FALSE (known_next))
+ if (PREDICT_FALSE (or_flags & PKT_RX_FDIR))
{
+ /* some packets will need to go to different next nodes */
for (n = 0; n < n_rx_packets; n++)
ptd->next[n] = next_index;
- vnet_buffer (bt)->feature_arc_index = 0;
- bt->current_config_index = 0;
+ /* flow offload - process if rx flow offload enabled and at least one
+ packet is marked */
+ if (PREDICT_FALSE ((xd->flags & DPDK_DEVICE_FLAG_RX_FLOW_OFFLOAD) &&
+ (or_flags & PKT_RX_FDIR)))
+ dpdk_process_flow_offload (xd, ptd, n_rx_packets);
+
+ /* enqueue buffers to the next node */
+ vlib_get_buffer_indices_with_offset (vm, (void **) ptd->mbufs,
+ ptd->buffers, n_rx_packets,
+ sizeof (struct rte_mbuf));
+
+ vlib_buffer_enqueue_to_next (vm, node, ptd->buffers, ptd->next,
+ n_rx_packets);
}
else
- dpdk_set_next_from_etype (vm, node, ptd, n_rx_packets);
-
- /* is at least one packet marked as ip4 checksum bad? */
- if (PREDICT_FALSE (or_flags & (1 << DPDK_RX_F_CKSUM_BAD)))
- for (n = 0; n < n_rx_packets; n++)
- {
- if ((ptd->flags[n] & (1 << DPDK_RX_F_CKSUM_BAD)) == 0)
- continue;
- if (ptd->next[n] != VNET_DEVICE_INPUT_NEXT_IP4_INPUT)
- continue;
-
- b0 = vlib_buffer_from_rte_mbuf (ptd->mbufs[n]);
- b0->error = node->errors[DPDK_ERROR_IP_CHECKSUM_ERROR];
- ptd->next[n] = VNET_DEVICE_INPUT_NEXT_DROP;
- }
-
- /* enqueue buffers to the next node */
- n_left = n_rx_packets;
- next = ptd->next;
- buffers = ptd->buffers;
- mb = ptd->mbufs;
- while (n_left)
{
- u32 n_left_to_next;
- u32 *to_next;
- vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
-#ifdef CLIB_HAVE_VEC256
- while (n_left >= 16 && n_left_to_next >= 16)
- {
- u16x16 next16 = u16x16_load_unaligned (next);
- if (u16x16_is_all_equal (next16, next_index))
- {
- dpdk_mbuf_to_buffer_index_x4 (vm, mb, buffers);
- dpdk_mbuf_to_buffer_index_x4 (vm, mb + 4, buffers + 4);
- dpdk_mbuf_to_buffer_index_x4 (vm, mb + 8, buffers + 8);
- dpdk_mbuf_to_buffer_index_x4 (vm, mb + 12, buffers + 12);
- clib_memcpy (to_next, buffers, 16 * sizeof (u32));
- to_next += 16;
- n_left_to_next -= 16;
- buffers += 16;
- n_left -= 16;
- next += 16;
- mb += 16;
- }
- else
- {
- dpdk_mbuf_to_buffer_index_x4 (vm, mb, buffers);
- clib_memcpy (to_next, buffers, 4 * sizeof (u32));
- to_next += 4;
- n_left_to_next -= 4;
-
- vlib_validate_buffer_enqueue_x4 (vm, node, next_index, to_next,
- n_left_to_next, buffers[0],
- buffers[1], buffers[2],
- buffers[3], next[0], next[1],
- next[2], next[3]);
- /* next */
- buffers += 4;
- n_left -= 4;
- next += 4;
- mb += 4;
- }
- }
-#endif
- while (n_left >= 4 && n_left_to_next >= 4)
- {
- dpdk_mbuf_to_buffer_index_x4 (vm, mb, buffers);
- clib_memcpy (to_next, buffers, 4 * sizeof (u32));
- to_next += 4;
- n_left_to_next -= 4;
-
- vlib_validate_buffer_enqueue_x4 (vm, node, next_index, to_next,
- n_left_to_next, buffers[0],
- buffers[1], buffers[2], buffers[3],
- next[0], next[1], next[2],
- next[3]);
- /* next */
- buffers += 4;
- n_left -= 4;
- next += 4;
- mb += 4;
- }
- while (n_left && n_left_to_next)
+ u32 *to_next, n_left_to_next;
+
+ vlib_get_new_next_frame (vm, node, next_index, to_next, n_left_to_next);
+ vlib_get_buffer_indices_with_offset (vm, (void **) ptd->mbufs, to_next,
+ n_rx_packets,
+ sizeof (struct rte_mbuf));
+
+ if (PREDICT_TRUE (next_index == VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT))
{
- to_next[0] = buffers[0] =
- vlib_get_buffer_index (vm, vlib_buffer_from_rte_mbuf (mb[0]));
- to_next += 1;
- n_left_to_next -= 1;
- vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
- n_left_to_next, buffers[0],
- next[0]);
- /* next */
- buffers += 1;
- n_left -= 1;
- next += 1;
- mb += 1;
+ 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 = xd->sw_if_index;
+ ef->hw_if_index = xd->hw_if_index;
+
+ /* if PMD supports ip4 checksum check and there are no packets
+ marked as ip4 checksum bad we can notify ethernet input so it
+ can send pacets to ip4-input-no-checksum node */
+ if (xd->flags & DPDK_DEVICE_FLAG_RX_IP4_CKSUM &&
+ (or_flags & PKT_RX_IP_CKSUM_BAD) == 0)
+ f->flags |= ETH_INPUT_FRAME_F_IP4_CKSUM_OK;
}
+ n_left_to_next -= n_rx_packets;
vlib_put_next_frame (vm, node, next_index, n_left_to_next);
+ single_next = 1;
}
/* packet trace if enabled */
- if ((n_trace = vlib_get_trace_count (vm, node)))
+ if (PREDICT_FALSE ((n_trace = vlib_get_trace_count (vm, node))))
{
+ if (single_next)
+ vlib_get_buffer_indices_with_offset (vm, (void **) ptd->mbufs,
+ ptd->buffers, n_rx_packets,
+ sizeof (struct rte_mbuf));
+
n_left = n_rx_packets;
buffers = ptd->buffers;
mb = ptd->mbufs;
next = ptd->next;
+
while (n_trace && n_left)
{
b0 = vlib_get_buffer (vm, buffers[0]);
- vlib_trace_buffer (vm, node, next[0], b0, /* follow_chain */ 0);
+ if (single_next == 0)
+ next_index = next[0];
+ vlib_trace_buffer (vm, node, next_index, b0, /* follow_chain */ 0);
dpdk_rx_trace_t *t0 = vlib_add_trace (vm, node, b0, sizeof t0[0]);
t0->queue_index = queue_id;
t0->device_index = xd->device_index;
t0->buffer_index = vlib_get_buffer_index (vm, b0);
- clib_memcpy (&t0->mb, mb[0], sizeof t0->mb);
- clib_memcpy (&t0->buffer, b0, sizeof b0[0] - sizeof b0->pre_data);
- clib_memcpy (t0->buffer.pre_data, b0->data,
- sizeof t0->buffer.pre_data);
- clib_memcpy (&t0->data, mb[0]->buf_addr + mb[0]->data_off,
- sizeof t0->data);
+ clib_memcpy_fast (&t0->mb, mb[0], sizeof t0->mb);
+ clib_memcpy_fast (&t0->buffer, b0,
+ sizeof b0[0] - sizeof b0->pre_data);
+ clib_memcpy_fast (t0->buffer.pre_data, b0->data,
+ sizeof t0->buffer.pre_data);
+ clib_memcpy_fast (&t0->data, mb[0]->buf_addr + mb[0]->data_off,
+ sizeof t0->data);
n_trace--;
n_left--;
buffers++;
vlib_set_trace_count (vm, node, n_trace);
}
+ /* rx pcap capture if enabled */
+ if (PREDICT_FALSE (dm->pcap[VLIB_RX].pcap_enable))
+ {
+ u32 bi0;
+ n_left = n_rx_packets;
+ buffers = ptd->buffers;
+ while (n_left)
+ {
+ bi0 = buffers[0];
+ b0 = vlib_get_buffer (vm, bi0);
+ buffers++;
+
+ if (dm->pcap[VLIB_RX].pcap_sw_if_index == 0 ||
+ dm->pcap[VLIB_RX].pcap_sw_if_index
+ == vnet_buffer (b0)->sw_if_index[VLIB_RX])
+ {
+ struct rte_mbuf *mb;
+ i16 data_start;
+ i32 temp_advance;
+
+ /*
+ * Note: current_data will have advanced
+ * when we skip ethernet input.
+ * Temporarily back up to the original DMA
+ * target, so we capture a valid ethernet frame
+ */
+ mb = rte_mbuf_from_vlib_buffer (b0);
+
+ /* Figure out the original data_start */
+ data_start = (mb->buf_addr + mb->data_off) - (void *) b0->data;
+ /* Back up that far */
+ temp_advance = b0->current_data - data_start;
+ vlib_buffer_advance (b0, -temp_advance);
+ /* Trace the packet */
+ pcap_add_buffer (&dm->pcap[VLIB_RX].pcap_main, vm, bi0, 512);
+ /* and advance again */
+ vlib_buffer_advance (b0, temp_advance);
+ }
+ n_left--;
+ }
+ }
+
vlib_increment_combined_counter
(vnet_get_main ()->interface_main.combined_sw_if_counters
+ VNET_INTERFACE_COUNTER_RX, thread_index, xd->sw_if_index,
return n_rx_packets;
}
-uword CLIB_CPU_OPTIMIZED
-CLIB_MULTIARCH_FN (dpdk_input) (vlib_main_t * vm, vlib_node_runtime_t * node,
+VLIB_NODE_FN (dpdk_input_node) (vlib_main_t * vm, vlib_node_runtime_t * node,
vlib_frame_t * f)
{
dpdk_main_t *dm = &dpdk_main;
dq->queue_id);
}
/* *INDENT-ON* */
-
- poll_rate_limit (dm);
-
return n_rx_packets;
}
-#ifndef CLIB_MULTIARCH_VARIANT
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (dpdk_input_node) = {
- .function = dpdk_input,
.type = VLIB_NODE_TYPE_INPUT,
.name = "dpdk-input",
.sibling_of = "device-input",
};
/* *INDENT-ON* */
-vlib_node_function_t __clib_weak dpdk_input_avx512;
-vlib_node_function_t __clib_weak dpdk_input_avx2;
-
-#if __x86_64__
-static void __clib_constructor
-dpdk_input_multiarch_select (void)
-{
- if (dpdk_input_avx512 && clib_cpu_supports_avx512f ())
- dpdk_input_node.function = dpdk_input_avx512;
- else if (dpdk_input_avx2 && clib_cpu_supports_avx2 ())
- dpdk_input_node.function = dpdk_input_avx2;
-}
-#endif
-#endif
-
/*
* fd.io coding-style-patch-verification: ON
*
Code Review / vpp.git / blobdiff