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authorFlorin Coras <fcoras@cisco.com>2020-01-21 18:33:23 -0800
committerDave Barach <openvpp@barachs.net>2020-01-23 19:21:57 +0000
commit68b7e5888cbfc1fafd38971c725ce10268ad3841 (patch)
tree91dc18e56d813e2dcc6ee95c21eebf41aceb282f /src/vcl
parent87e64c929fa534ebd29b18f38fc6c15fd216e7e4 (diff)
vcl session: udp session migration notifications
Type: feature Change-Id: I402549818ba6e078802e914293304174dc6625c2 Signed-off-by: Florin Coras <fcoras@cisco.com>
Diffstat (limited to 'src/vcl')
-rw-r--r--src/vcl/vppcom.c39
1 files changed, 39 insertions, 0 deletions
diff --git a/src/vcl/vppcom.c b/src/vcl/vppcom.c
index 5eea71e143f..15313fd286c 100644
--- a/src/vcl/vppcom.c
+++ b/src/vcl/vppcom.c
@@ -629,6 +629,36 @@ vcl_session_unlisten_reply_handler (vcl_worker_t * wrk, void *data)
vcl_session_free (wrk, s);
}
+static void
+vcl_session_migrated_handler (vcl_worker_t * wrk, void *data)
+{
+ session_migrated_msg_t *mp = (session_migrated_msg_t *) data;
+ vcl_session_t *s;
+
+ s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
+ if (!s)
+ {
+ VDBG (0, "Migrated notification with wrong handle %llx", mp->handle);
+ return;
+ }
+
+ s->vpp_thread_index = mp->vpp_thread_index;
+ s->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
+
+ vec_validate (wrk->vpp_event_queues, s->vpp_thread_index);
+ wrk->vpp_event_queues[s->vpp_thread_index] = s->vpp_evt_q;
+
+ vcl_session_table_del_vpp_handle (wrk, mp->handle);
+ vcl_session_table_add_vpp_handle (wrk, mp->new_handle, s->session_index);
+
+ /* Generate new tx event if we have outstanding data */
+ if (svm_fifo_has_event (s->tx_fifo))
+ app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
+ SESSION_IO_EVT_TX, SVM_Q_WAIT);
+
+ VDBG (0, "Migrated 0x%x to thread %u", mp->handle, s->vpp_thread_index);
+}
+
static vcl_session_t *
vcl_session_accepted (vcl_worker_t * wrk, session_accepted_msg_t * msg)
{
@@ -812,6 +842,9 @@ vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
case SESSION_CTRL_EVT_UNLISTEN_REPLY:
vcl_session_unlisten_reply_handler (wrk, e->data);
break;
+ case SESSION_CTRL_EVT_MIGRATED:
+ vcl_session_migrated_handler (wrk, e->data);
+ break;
case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
vcl_session_req_worker_update_handler (wrk, e->data);
break;
@@ -2127,6 +2160,9 @@ vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
case SESSION_CTRL_EVT_UNLISTEN_REPLY:
vcl_session_unlisten_reply_handler (wrk, e->data);
break;
+ case SESSION_CTRL_EVT_MIGRATED:
+ vcl_session_migrated_handler (wrk, e->data);
+ break;
case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
vcl_session_worker_update_reply_handler (wrk, e->data);
break;
@@ -2739,6 +2775,9 @@ vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
case SESSION_CTRL_EVT_UNLISTEN_REPLY:
vcl_session_unlisten_reply_handler (wrk, e->data);
break;
+ case SESSION_CTRL_EVT_MIGRATED:
+ vcl_session_migrated_handler (wrk, e->data);
+ break;
case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
vcl_session_req_worker_update_handler (wrk, e->data);
break;