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authorFlorin Coras <fcoras@cisco.com>2018-08-31 14:31:41 -0700
committerDamjan Marion <dmarion@me.com>2018-09-06 08:35:51 +0000
commitab2f6dbf9f7b7164a9810f4c80c8abf8463e42ad (patch)
tree7fb4dd4c70bef17f09a88130eeadeeca86b6d09c /src/vcl/vppcom.c
parented234e7f151b05a5b8375dbd9f0add24fe8ebf2f (diff)
session: support multiple worker binds
Allows app workers to listen on the same session endpoint. Incoming connects are spread across the workers in a round-robin fashion Change-Id: Ib5f5817230d9abc6127a85cdbdcad70d980c0f7f Signed-off-by: Florin Coras <fcoras@cisco.com>
Diffstat (limited to 'src/vcl/vppcom.c')
-rw-r--r--src/vcl/vppcom.c39
1 files changed, 23 insertions, 16 deletions
diff --git a/src/vcl/vppcom.c b/src/vcl/vppcom.c
index 87f29e35311..60d5eb3539a 100644
--- a/src/vcl/vppcom.c
+++ b/src/vcl/vppcom.c
@@ -614,13 +614,13 @@ vppcom_app_attach (void)
}
static int
-vppcom_session_unbind (u32 session_index)
+vppcom_session_unbind (u32 session_handle)
{
vcl_worker_t *wrk = vcl_worker_get_current ();
vcl_session_t *session = 0;
u64 vpp_handle;
- session = vcl_session_get (wrk, session_index);
+ session = vcl_session_get_w_handle (wrk, session_handle);
if (!session)
return VPPCOM_EBADFD;
@@ -630,7 +630,7 @@ vppcom_session_unbind (u32 session_index)
session->session_state = STATE_DISCONNECT;
VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: sending unbind msg! new state"
- " 0x%x (%s)", getpid (), vpp_handle, session_index, STATE_DISCONNECT,
+ " 0x%x (%s)", getpid (), vpp_handle, session_handle, STATE_DISCONNECT,
vppcom_session_state_str (STATE_DISCONNECT));
vcl_evt (VCL_EVT_UNBIND, session);
vppcom_send_unbind_sock (vpp_handle);
@@ -639,7 +639,7 @@ vppcom_session_unbind (u32 session_index)
}
static int
-vppcom_session_disconnect (u32 session_index)
+vppcom_session_disconnect (u32 session_handle)
{
vcl_worker_t *wrk = vcl_worker_get_current ();
svm_msg_q_t *vpp_evt_q;
@@ -647,18 +647,18 @@ vppcom_session_disconnect (u32 session_index)
session_state_t state;
u64 vpp_handle;
- session = vcl_session_get (wrk, session_index);
+ session = vcl_session_get_w_handle (wrk, session_handle);
vpp_handle = session->vpp_handle;
state = session->session_state;
VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u state 0x%x (%s)", getpid (),
- vpp_handle, session_index, state, vppcom_session_state_str (state));
+ vpp_handle, session_handle, state, vppcom_session_state_str (state));
if (PREDICT_FALSE (state & STATE_LISTEN))
{
clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
"Cannot disconnect a listen socket!",
- getpid (), vpp_handle, session_index);
+ getpid (), vpp_handle, session_handle);
return VPPCOM_EBADFD;
}
@@ -668,13 +668,13 @@ vppcom_session_disconnect (u32 session_index)
vcl_send_session_disconnected_reply (vpp_evt_q, vcm->my_client_index,
vpp_handle, 0);
VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: sending disconnect "
- "REPLY...", getpid (), vpp_handle, session_index);
+ "REPLY...", getpid (), vpp_handle, session_handle);
}
else
{
VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: sending disconnect...",
- getpid (), vpp_handle, session_index);
- vppcom_send_disconnect_session (vpp_handle, session_index);
+ getpid (), vpp_handle, session_handle);
+ vppcom_send_disconnect_session (vpp_handle);
}
return VPPCOM_OK;
@@ -1142,7 +1142,7 @@ handle:
vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
client_session_index);
- return client_session_index;
+ return vcl_session_handle (client_session);
}
int
@@ -1653,6 +1653,12 @@ vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
}
break;
case SESSION_IO_EVT_CT_TX:
+ if (svm_fifo_is_empty (e->fifo))
+ {
+ svm_fifo_unset_event (e->fifo);
+ if (svm_fifo_is_empty (e->fifo))
+ break;
+ }
session = vcl_ct_session_get_from_fifo (wrk, e->fifo, 0);
sid = session->session_index;
if (sid < n_bits && read_map)
@@ -1977,7 +1983,7 @@ vppcom_epoll_create (void)
VDBG (0, "VCL<%d>: Created vep_idx %u / sid %u!",
getpid (), vep_session->session_index, vep_session->session_index);
- return (vep_session->session_index);
+ return vcl_session_handle (vep_session);
}
int
@@ -2037,7 +2043,8 @@ vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
if (vep_session->vep.next_sh != ~0)
{
vcl_session_t *next_session;
- next_session = vcl_session_get (wrk, vep_session->vep.next_sh);
+ next_session = vcl_session_get_w_handle (wrk,
+ vep_session->vep.next_sh);
if (PREDICT_FALSE (!next_session))
{
clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_ADD: Invalid "
@@ -2121,7 +2128,7 @@ vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
else
{
vcl_session_t *prev_session;
- prev_session = vcl_session_get (wrk, session->vep.prev_sh);
+ prev_session = vcl_session_get_w_handle (wrk, session->vep.prev_sh);
if (PREDICT_FALSE (!prev_session))
{
clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_DEL: Invalid "
@@ -2135,7 +2142,7 @@ vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
if (session->vep.next_sh != ~0)
{
vcl_session_t *next_session;
- next_session = vcl_session_get (wrk, session->vep.next_sh);
+ next_session = vcl_session_get_w_handle (wrk, session->vep.next_sh);
if (PREDICT_FALSE (!next_session))
{
clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_DEL: Invalid "
@@ -2314,7 +2321,7 @@ vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
session_events = session->vep.ev.events;
break;
default:
- clib_warning ("unhandled: %u", e->event_type);
+ VDBG (0, "unhandled: %u", e->event_type);
svm_msg_q_free_msg (mq, msg);
continue;
}