summaryrefslogtreecommitdiffstats
path: root/src/vnet/session/session_api.c
diff options
context:
space:
mode:
authorFlorin Coras <fcoras@cisco.com>2019-03-04 10:56:23 -0800
committerDave Barach <openvpp@barachs.net>2019-03-06 17:53:39 +0000
commit653e43f06a974121343b2c1f0e4533926020877b (patch)
tree6ab92561e8eccbda6b29316f794de531032a1259 /src/vnet/session/session_api.c
parenta55df1081762b4e40698ef7d9196551851be646a (diff)
session: use vpp to switch io events for ct sessions
Instead of allocating pairs of message queues per cut-thru session and having the applications map them, this uses vpp as an io event message switch. Change-Id: I51db1c7564df479a7d1a3288342394251fd188bb Signed-off-by: Florin Coras <fcoras@cisco.com>
Diffstat (limited to 'src/vnet/session/session_api.c')
-rwxr-xr-xsrc/vnet/session/session_api.c87
1 files changed, 18 insertions, 69 deletions
diff --git a/src/vnet/session/session_api.c b/src/vnet/session/session_api.c
index 8ee25a9a2ce..525f63799be 100755
--- a/src/vnet/session/session_api.c
+++ b/src/vnet/session/session_api.c
@@ -150,54 +150,6 @@ send_del_segment_callback (u32 api_client_index, u64 segment_handle)
}
static int
-send_app_cut_through_registration_add (u32 api_client_index,
- u32 wrk_map_index, u64 mq_addr,
- u64 peer_mq_addr)
-{
- vl_api_app_cut_through_registration_add_t *mp;
- vl_api_registration_t *reg;
- svm_msg_q_t *mq, *peer_mq;
- int fds[2];
-
- reg = vl_mem_api_client_index_to_registration (api_client_index);
- if (!reg)
- {
- clib_warning ("no registration: %u", api_client_index);
- return -1;
- }
-
- mp = vl_mem_api_alloc_as_if_client_w_reg (reg, sizeof (*mp));
- clib_memset (mp, 0, sizeof (*mp));
- mp->_vl_msg_id =
- clib_host_to_net_u16 (VL_API_APP_CUT_THROUGH_REGISTRATION_ADD);
-
- mp->evt_q_address = mq_addr;
- mp->peer_evt_q_address = peer_mq_addr;
- mp->wrk_index = wrk_map_index;
-
- mq = uword_to_pointer (mq_addr, svm_msg_q_t *);
- peer_mq = uword_to_pointer (peer_mq_addr, svm_msg_q_t *);
-
- if (svm_msg_q_get_producer_eventfd (mq) != -1)
- {
- mp->fd_flags |= SESSION_FD_F_MQ_EVENTFD;
- mp->n_fds = 2;
- /* app will overwrite exactly the fds we pass here. So
- * when we swap mq with peer_mq (accept vs connect) the
- * fds will still be valid */
- fds[0] = svm_msg_q_get_consumer_eventfd (mq);
- fds[1] = svm_msg_q_get_producer_eventfd (peer_mq);
- }
-
- vl_msg_api_send_shmem (reg->vl_input_queue, (u8 *) & mp);
-
- if (mp->n_fds != 0)
- session_send_fds (reg, fds, mp->n_fds);
-
- return 0;
-}
-
-static int
mq_try_lock_and_alloc_msg (svm_msg_q_t * app_mq, svm_msg_q_msg_t * msg)
{
int rv;
@@ -268,25 +220,17 @@ mq_send_session_accepted_cb (session_t * s)
}
else
{
- u8 main_thread = vlib_num_workers ()? 1 : 0;
ct_connection_t *ct;
ct = (ct_connection_t *) session_get_transport (s);
- send_app_cut_through_registration_add (app_wrk->api_client_index,
- app_wrk->wrk_map_index,
- ct->server_evt_q,
- ct->client_evt_q);
-
listener = listen_session_get (s->listener_index);
al = app_listener_get (app, listener->al_index);
mp->listener_handle = app_listener_handle (al);
mp->is_ip4 = session_type_is_ip4 (listener->session_type);
mp->handle = session_handle (s);
mp->port = ct->c_rmt_port;
- vpp_queue = session_main_get_vpp_event_queue (main_thread);
+ vpp_queue = session_main_get_vpp_event_queue (0);
mp->vpp_event_queue_address = pointer_to_uword (vpp_queue);
- mp->client_event_queue_address = ct->client_evt_q;
- mp->server_event_queue_address = ct->server_evt_q;
}
svm_msg_q_add_and_unlock (app_mq, msg);
@@ -415,26 +359,22 @@ mq_send_session_connected_cb (u32 app_wrk_index, u32 api_context,
}
else
{
- u8 main_thread = vlib_num_workers ()? 1 : 0;
ct_connection_t *cct;
session_t *ss;
cct = (ct_connection_t *) session_get_transport (s);
- send_app_cut_through_registration_add (app_wrk->api_client_index,
- app_wrk->wrk_map_index,
- cct->client_evt_q,
- cct->server_evt_q);
-
mp->handle = session_handle (s);
mp->lcl_port = cct->c_lcl_port;
- vpp_mq = session_main_get_vpp_event_queue (main_thread);
+ mp->is_ip4 = cct->c_is_ip4;
+ vpp_mq = session_main_get_vpp_event_queue (0);
mp->vpp_event_queue_address = pointer_to_uword (vpp_mq);
- mp->client_event_queue_address = cct->client_evt_q;
- mp->server_event_queue_address = cct->server_evt_q;
+ mp->server_rx_fifo = pointer_to_uword (s->rx_fifo);
+ mp->server_tx_fifo = pointer_to_uword (s->tx_fifo);
+ mp->segment_handle = session_segment_handle (s);
ss = ct_session_get_peer (s);
- mp->server_rx_fifo = pointer_to_uword (ss->tx_fifo);
- mp->server_tx_fifo = pointer_to_uword (ss->rx_fifo);
- mp->segment_handle = session_segment_handle (ss);
+ mp->ct_rx_fifo = pointer_to_uword (ss->tx_fifo);
+ mp->ct_tx_fifo = pointer_to_uword (ss->rx_fifo);
+ mp->ct_segment_handle = session_segment_handle (ss);
}
done:
@@ -505,11 +445,20 @@ done:
return 0;
}
+static int
+mq_app_tx_callback (session_t * s)
+{
+ if (session_has_transport (s))
+ return 0;
+ return ct_session_tx (s);
+}
+
static session_cb_vft_t session_mq_cb_vft = {
.session_accept_callback = mq_send_session_accepted_cb,
.session_disconnect_callback = mq_send_session_disconnected_cb,
.session_connected_callback = mq_send_session_connected_cb,
.session_reset_callback = mq_send_session_reset_cb,
+ .builtin_app_tx_callback = mq_app_tx_callback,
.add_segment_callback = send_add_segment_callback,
.del_segment_callback = send_del_segment_callback,
};