<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)
{
vnet_buffer (b[0])->l2_hdr_offset = off;
b[0]->current_data = off;
- off = mb[0]->data_off;
+ off = mb[1]->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;
+ off = mb[2]->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;
+ off = mb[3]->data_off;
next[3] = off + STRUCT_OFFSET_OF (ethernet_header_t, type);
off -= RTE_PKTMBUF_HEADROOM;
vnet_buffer (b[3])->l2_hdr_offset = off;
}
}
+static_always_inline void
+dpdk_process_flow_offload (dpdk_device_t * xd, dpdk_per_thread_data_t * ptd,
+ uword n_rx_packets)
+{
+ uword n;
+ dpdk_flow_lookup_entry_t *fle;
+ vlib_buffer_t *b0;
+
+ /* TODO prefetch and quad-loop */
+ for (n = 0; n < n_rx_packets; n++)
+ {
+ if ((ptd->flags[n] & (1 << DPDK_RX_F_FDIR)) == 0)
+ continue;
+
+ fle = vec_elt_at_index (xd->flow_lookup_entries,
+ ptd->mbufs[n]->hash.fdir.hi);
+
+ if (fle->next_index != (u16) ~ 0)
+ ptd->next[n] = fle->next_index;
+
+ if (fle->flow_id != ~0)
+ {
+ b0 = vlib_buffer_from_rte_mbuf (ptd->mbufs[n]);
+ b0->flow_id = fle->flow_id;
+ }
+
+ if (fle->buffer_advance != ~0)
+ {
+ b0 = vlib_buffer_from_rte_mbuf (ptd->mbufs[n]);
+ vlib_buffer_advance (b0, fle->buffer_advance);
+ }
+ }
+}
+
static_always_inline u32
dpdk_device_input (vlib_main_t * vm, dpdk_main_t * dm, dpdk_device_t * xd,
vlib_node_runtime_t * node, u32 thread_index, u16 queue_id)
for (n = 0; n < n_rx_packets; n++)
ptd->next[n] = next_index;
- bt->feature_arc_index = 0;
+ vnet_buffer (bt)->feature_arc_index = 0;
bt->current_config_index = 0;
}
else
dpdk_set_next_from_etype (vm, node, ptd, n_rx_packets);
+ /* flow offload - process if rx flow offlaod enabled and at least one packet
+ is marked */
+ if (PREDICT_FALSE ((xd->flags & DPDK_DEVICE_FLAG_RX_FLOW_OFFLOAD) &&
+ (or_flags & (1 << DPDK_RX_F_FDIR))))
+ dpdk_process_flow_offload (xd, 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++)
}
/* 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)
- {
- 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_put_next_frame (vm, node, next_index, n_left_to_next);
- }
+ 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);
/* packet trace if enabled */
if ((n_trace = vlib_get_trace_count (vm, node)))
Code Review / vpp.git / blobdiff