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authorDamjan Marion <damarion@cisco.com>2018-03-16 01:25:27 +0100
committerDamjan Marion <dmarion.lists@gmail.com>2018-05-10 15:45:03 +0000
commita35cc14d37466f0737fa928d25697fbfe6e7d657 (patch)
tree7242bb0bc9feebc35a2b1ab56986bc2a7ddb0ceb /src/plugins/dpdk/device/node.c
parentcd330c878dfdb9f52b372007a5086138b12d89f7 (diff)
vnet: device flow offload infra
Change-Id: Ibea4a96bdec5e368301a03d8b11a0712fa0265e0 Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/plugins/dpdk/device/node.c')
-rw-r--r--src/plugins/dpdk/device/node.c40
1 files changed, 40 insertions, 0 deletions
diff --git a/src/plugins/dpdk/device/node.c b/src/plugins/dpdk/device/node.c
index 7bb1fb3c9c1..7ba4dad8ae9 100644
--- a/src/plugins/dpdk/device/node.c
+++ b/src/plugins/dpdk/device/node.c
@@ -474,6 +474,40 @@ dpdk_set_next_from_etype (vlib_main_t * vm, vlib_node_runtime_t * node,
}
}
+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)
@@ -549,6 +583,12 @@ dpdk_device_input (vlib_main_t * vm, dpdk_main_t * dm, dpdk_device_t * xd,
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++)