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authorSteven <sluong@cisco.com>2017-05-30 10:35:51 -0700
committerDave Wallace <dwallacelf@gmail.com>2017-05-31 02:27:45 +0000
commitc2ebcbb89bea719418fc3f896ae3de4302acaf6d (patch)
tree7b035f314305d100c1c1c482887581739d96f987 /src/plugins/memif/node.c
parent79ea7ec3b3c04d334a21107818c64d70c42b99ae (diff)
memif: multi-queues support
- Add rx-queues and tx-queues option to the create memif CLI - Add vlib_worker_thread_barrier_sync () to memif_conn_fd_read_ready () as the latter function may disconnect the ring and clean up the shared memory. - On transmit, write the rid (queue number) to the socket. - On receive, read the rid and trigger the interrupt for the corresponding thread. Change-Id: If1c7e26c7124174678f047909cbc33e931eaac8c Signed-off-by: Steven <sluong@cisco.com>
Diffstat (limited to 'src/plugins/memif/node.c')
-rw-r--r--src/plugins/memif/node.c18
1 files changed, 7 insertions, 11 deletions
diff --git a/src/plugins/memif/node.c b/src/plugins/memif/node.c
index 2690dc4e0ec..fd7baa30e64 100644
--- a/src/plugins/memif/node.c
+++ b/src/plugins/memif/node.c
@@ -78,15 +78,12 @@ memif_prefetch (vlib_main_t * vm, u32 bi)
static_always_inline uword
memif_device_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
vlib_frame_t * frame, memif_if_t * mif,
- memif_ring_type_t type)
+ memif_ring_type_t type, u16 rid)
{
vnet_main_t *vnm = vnet_get_main ();
- u8 rid = 0; /* Ring id */
memif_ring_t *ring = memif_get_ring (mif, type, rid);
- memif_ring_data_t *rd =
- vec_elt_at_index (mif->ring_data, rid + type * mif->num_s2m_rings);
+ memif_ring_data_t *rd;
u16 head;
-
u32 next_index = VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT;
uword n_trace = vlib_get_trace_count (vm, node);
memif_main_t *nm = &memif_main;
@@ -102,6 +99,7 @@ memif_device_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
u16 num_slots;
void *mb0, *mb1;
+ rd = vec_elt_at_index (mif->ring_data, rid + type * mif->num_s2m_rings);
if (mif->per_interface_next_index != ~0)
next_index = mif->per_interface_next_index;
@@ -328,7 +326,6 @@ memif_input_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
u32 n_rx_packets = 0;
- u32 thread_index = vlib_get_thread_index ();
memif_main_t *nm = &memif_main;
memif_if_t *mif;
vnet_device_input_runtime_t *rt = (void *) node->runtime_data;
@@ -338,17 +335,16 @@ memif_input_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
foreach_device_and_queue (dq, rt->devices_and_queues)
{
mif = vec_elt_at_index (nm->interfaces, dq->dev_instance);
- if (mif->flags & MEMIF_IF_FLAG_ADMIN_UP &&
- mif->flags & MEMIF_IF_FLAG_CONNECTED &&
- (mif->if_index % nm->input_cpu_count) ==
- (thread_index - nm->input_cpu_first_index))
+ if ((mif->flags & MEMIF_IF_FLAG_ADMIN_UP) &&
+ (mif->flags & MEMIF_IF_FLAG_CONNECTED))
{
if (mif->flags & MEMIF_IF_FLAG_IS_SLAVE)
type = MEMIF_RING_M2S;
else
type = MEMIF_RING_S2M;
n_rx_packets +=
- memif_device_input_inline (vm, node, frame, mif, type);
+ memif_device_input_inline (vm, node, frame, mif, type,
+ dq->queue_id);
}
}