#ifndef __included_uri_h__
#define __included_uri_h__
-#include <vlib/vlib.h>
-#include <vnet/vnet.h>
#include <svm/svm_fifo_segment.h>
#include <vnet/session/session.h>
#include <vnet/session/application.h>
typedef struct _vnet_app_attach_args_t
{
- /** Binary API client index */
- u32 api_client_index;
-
- /** Application name. Used by builtin apps */
- u8 *name;
-
- /** Application and segment manager options */
- u64 *options;
-
- /** ID of the namespace the app has access to */
- u8 *namespace_id;
-
- /** Session to application callback functions */
- session_cb_vft_t *session_cb_vft;
-
- /*
- * Results
- */
- ssvm_private_t *segment;
- u64 app_event_queue_address;
- u32 app_index;
+#define _(_type, _name) _type _name;
+ foreach_app_init_args
+#undef _
+ ssvm_private_t * segment;
+ svm_msg_q_t *app_evt_q;
} vnet_app_attach_args_t;
typedef struct _vnet_app_detach_args_t
{
union
{
- char *uri;
+ session_endpoint_cfg_t sep_ext;
session_endpoint_t sep;
+ char *uri;
};
u32 app_index;
+ u32 wrk_map_index;
/*
* Results
union
{
char *uri;
- u64 handle;
+ u64 handle; /**< Session handle */
};
- u32 app_index;
+ u32 app_index; /**< Owning application index */
+ u32 wrk_map_index; /**< App's local pool worker index */
} vnet_unbind_args_t;
typedef struct _vnet_connect_args
{
union
{
+ session_endpoint_cfg_t sep_ext;
+ session_endpoint_t sep;
char *uri;
- session_endpoint_extended_t sep;
};
u32 app_index;
+ u32 wrk_map_index;
u32 api_context;
session_handle_t session_handle;
_(ACCEPT_REDIRECT, "Use FIFO with redirects") \
_(ADD_SEGMENT, "Add segment and signal app if needed") \
_(IS_BUILTIN, "Application is builtin") \
- _(IS_PROXY, "Application is proxying") \
+ _(IS_TRANSPORT_APP, "Application is a transport proto") \
+ _(IS_PROXY, "Application is proxying") \
_(USE_GLOBAL_SCOPE, "App can use global session scope") \
- _(USE_LOCAL_SCOPE, "App can use local session scope")
+ _(USE_LOCAL_SCOPE, "App can use local session scope") \
+ _(USE_MQ_FOR_CTRL_MSGS, "Use message queue for ctr msgs") \
+ _(EVT_MQ_USE_EVENTFD, "Use eventfds for signaling") \
typedef enum _app_options
{
#undef _
} app_options_flags_t;
+#define foreach_fd_type \
+ _(VPP_MQ_SEGMENT, "Fd for vpp's event mq segment") \
+ _(MEMFD_SEGMENT, "Fd for memfd segment") \
+ _(MQ_EVENTFD, "Event fd used by message queue") \
+ _(VPP_MQ_EVENTFD, "Event fd used by vpp's message queue") \
+
+typedef enum session_fd_type_
+{
+#define _(sym, str) SESSION_FD_##sym,
+ foreach_fd_type
+#undef _
+ SESSION_N_FD_TYPE
+} session_fd_type_t;
+
+typedef enum session_fd_flag_
+{
+#define _(sym, str) SESSION_FD_F_##sym = 1 << SESSION_FD_##sym,
+ foreach_fd_type
+#undef _
+} session_fd_flag_t;
+
int vnet_bind_uri (vnet_bind_args_t *);
int vnet_unbind_uri (vnet_unbind_args_t * a);
clib_error_t *vnet_connect_uri (vnet_connect_args_t * a);
{
ip46_address_t rmt_ip; /**< remote ip */
ip46_address_t lcl_ip; /**< local ip */
- u16 rmt_port; /**< remote port */
- u16 lcl_port; /**< local port */
+ u16 rmt_port; /**< remote port (network order) */
+ u16 lcl_port; /**< local port (network order) */
u8 is_ip4; /**< set if uses ip4 networking */
} app_session_transport_t;
-typedef struct app_session_
+#define foreach_app_session_field \
+ _(svm_fifo_t, *rx_fifo) /**< rx fifo */ \
+ _(svm_fifo_t, *tx_fifo) /**< tx fifo */ \
+ _(session_type_t, session_type) /**< session type */ \
+ _(volatile u8, session_state) /**< session state */ \
+ _(u32, session_index) /**< index in owning pool */ \
+ _(app_session_transport_t, transport) /**< transport info */ \
+ _(svm_msg_q_t, *vpp_evt_q) /**< vpp event queue */ \
+ _(u8, is_dgram) /**< flag for dgram mode */ \
+
+typedef struct
{
- svm_fifo_t *rx_fifo; /**< rx fifo */
- svm_fifo_t *tx_fifo; /**< tx fifo */
- session_type_t session_type; /**< session type */
- volatile u8 session_state; /**< session state */
- u32 session_index; /**< index in owning pool */
- app_session_transport_t transport; /**< transport info */
- svm_queue_t *vpp_evt_q; /**< vpp event queue for session */
- u8 is_dgram; /**< set if it works in dgram mode */
+#define _(type, name) type name;
+ foreach_app_session_field
+#undef _
} app_session_t;
+typedef struct session_bound_msg_
+{
+ u32 context;
+ u64 handle;
+ i32 retval;
+ u8 lcl_is_ip4;
+ u8 lcl_ip[16];
+ u16 lcl_port;
+ u64 rx_fifo;
+ u64 tx_fifo;
+ u64 vpp_evt_q;
+ u32 segment_size;
+ u8 segment_name_length;
+ u8 segment_name[128];
+} __clib_packed session_bound_msg_t;
+
+typedef struct session_accepted_msg_
+{
+ u32 context;
+ u64 listener_handle;
+ u64 handle;
+ u64 server_rx_fifo;
+ u64 server_tx_fifo;
+ u64 vpp_event_queue_address;
+ u64 server_event_queue_address;
+ u64 client_event_queue_address;
+ u16 port;
+ u8 is_ip4;
+ u8 ip[16];
+} __clib_packed session_accepted_msg_t;
+
+typedef struct session_accepted_reply_msg_
+{
+ u32 context;
+ i32 retval;
+ u64 handle;
+} __clib_packed session_accepted_reply_msg_t;
+
+/* Make sure this is not too large, otherwise it won't fit when dequeued in
+ * the session queue node */
+STATIC_ASSERT (sizeof (session_accepted_reply_msg_t) <= 16, "accept reply");
+
+typedef struct session_connected_msg_
+{
+ u32 context;
+ i32 retval;
+ u64 handle;
+ u64 server_rx_fifo;
+ u64 server_tx_fifo;
+ u64 vpp_event_queue_address;
+ u64 client_event_queue_address;
+ u64 server_event_queue_address;
+ u32 segment_size;
+ u8 segment_name_length;
+ u8 segment_name[64];
+ u8 lcl_ip[16];
+ u8 is_ip4;
+ u16 lcl_port;
+} __clib_packed session_connected_msg_t;
+
+typedef struct session_disconnected_msg_
+{
+ u32 client_index;
+ u32 context;
+ u64 handle;
+} __clib_packed session_disconnected_msg_t;
+
+typedef struct session_disconnected_reply_msg_
+{
+ u32 context;
+ i32 retval;
+ u64 handle;
+} __clib_packed session_disconnected_reply_msg_t;
+
+typedef struct session_reset_msg_
+{
+ u32 client_index;
+ u32 context;
+ u64 handle;
+} __clib_packed session_reset_msg_t;
+
+typedef struct session_reset_reply_msg_
+{
+ u32 client_index;
+ u32 context;
+ i32 retval;
+ u64 handle;
+} __clib_packed session_reset_reply_msg_t;
+
+typedef struct app_session_event_
+{
+ svm_msg_q_msg_t msg;
+ session_event_t *evt;
+} __clib_packed app_session_evt_t;
+
+static inline void
+app_alloc_ctrl_evt_to_vpp (svm_msg_q_t * mq, app_session_evt_t * app_evt,
+ u8 evt_type)
+{
+ svm_msg_q_lock_and_alloc_msg_w_ring (mq,
+ SESSION_MQ_CTRL_EVT_RING,
+ SVM_Q_WAIT, &app_evt->msg);
+ svm_msg_q_unlock (mq);
+ app_evt->evt = svm_msg_q_msg_data (mq, &app_evt->msg);
+ clib_memset (app_evt->evt, 0, sizeof (*app_evt->evt));
+ app_evt->evt->event_type = evt_type;
+}
+
+static inline void
+app_send_ctrl_evt_to_vpp (svm_msg_q_t * mq, app_session_evt_t * app_evt)
+{
+ svm_msg_q_add (mq, &app_evt->msg, SVM_Q_WAIT);
+}
+
+/**
+ * Send fifo io event to vpp worker thread
+ *
+ * Because there may be multiple writers to one of vpp's queues, this
+ * protects message allocation and enqueueing.
+ *
+ * @param mq vpp message queue
+ * @param f fifo for which the event is sent
+ * @param evt_type type of event
+ * @param noblock flag to indicate is request is blocking or not
+ * @return 0 if success, negative integer otherwise
+ */
+static inline int
+app_send_io_evt_to_vpp (svm_msg_q_t * mq, svm_fifo_t * f, u8 evt_type,
+ u8 noblock)
+{
+ session_event_t *evt;
+ svm_msg_q_msg_t msg;
+
+ if (noblock)
+ {
+ if (svm_msg_q_try_lock (mq))
+ return -1;
+ if (PREDICT_FALSE (svm_msg_q_ring_is_full (mq, SESSION_MQ_IO_EVT_RING)))
+ {
+ svm_msg_q_unlock (mq);
+ return -2;
+ }
+ msg = svm_msg_q_alloc_msg_w_ring (mq, SESSION_MQ_IO_EVT_RING);
+ if (PREDICT_FALSE (svm_msg_q_msg_is_invalid (&msg)))
+ {
+ svm_msg_q_unlock (mq);
+ return -2;
+ }
+ evt = (session_event_t *) svm_msg_q_msg_data (mq, &msg);
+ evt->fifo = f;
+ evt->event_type = evt_type;
+ svm_msg_q_add_and_unlock (mq, &msg);
+ return 0;
+ }
+ else
+ {
+ svm_msg_q_lock (mq);
+ while (svm_msg_q_ring_is_full (mq, SESSION_MQ_IO_EVT_RING))
+ svm_msg_q_wait (mq);
+ msg = svm_msg_q_alloc_msg_w_ring (mq, SESSION_MQ_IO_EVT_RING);
+ evt = (session_event_t *) svm_msg_q_msg_data (mq, &msg);
+ evt->fifo = f;
+ evt->event_type = evt_type;
+ if (svm_msg_q_is_full (mq))
+ svm_msg_q_wait (mq);
+ svm_msg_q_add_and_unlock (mq, &msg);
+ return 0;
+ }
+}
+
always_inline int
app_send_dgram_raw (svm_fifo_t * f, app_session_transport_t * at,
- svm_queue_t * vpp_evt_q, u8 * data, u32 len, u8 noblock)
+ svm_msg_q_t * vpp_evt_q, u8 * data, u32 len, u8 evt_type,
+ u8 noblock)
{
u32 max_enqueue, actual_write;
session_dgram_hdr_t hdr;
- session_fifo_event_t evt;
int rv;
max_enqueue = svm_fifo_max_enqueue (f);
- if (svm_fifo_max_enqueue (f) <= sizeof (session_dgram_hdr_t))
+ if (max_enqueue <= sizeof (session_dgram_hdr_t))
return 0;
max_enqueue -= sizeof (session_dgram_hdr_t);
actual_write = clib_min (len, max_enqueue);
hdr.data_length = actual_write;
hdr.data_offset = 0;
- clib_memcpy (&hdr.rmt_ip, &at->rmt_ip, sizeof (ip46_address_t));
+ clib_memcpy_fast (&hdr.rmt_ip, &at->rmt_ip, sizeof (ip46_address_t));
hdr.is_ip4 = at->is_ip4;
hdr.rmt_port = at->rmt_port;
- clib_memcpy (&hdr.lcl_ip, &at->lcl_ip, sizeof (ip46_address_t));
+ clib_memcpy_fast (&hdr.lcl_ip, &at->lcl_ip, sizeof (ip46_address_t));
hdr.lcl_port = at->lcl_port;
rv = svm_fifo_enqueue_nowait (f, sizeof (hdr), (u8 *) & hdr);
- if (rv <= 0)
- return 0;
-
ASSERT (rv == sizeof (hdr));
if ((rv = svm_fifo_enqueue_nowait (f, actual_write, data)) > 0)
{
if (svm_fifo_set_event (f))
- {
- evt.fifo = f;
- evt.event_type = FIFO_EVENT_APP_TX;
- svm_queue_add (vpp_evt_q, (u8 *) & evt, noblock);
- }
+ app_send_io_evt_to_vpp (vpp_evt_q, f, evt_type, noblock);
}
+ ASSERT (rv);
return rv;
}
app_send_dgram (app_session_t * s, u8 * data, u32 len, u8 noblock)
{
return app_send_dgram_raw (s->tx_fifo, &s->transport, s->vpp_evt_q, data,
- len, noblock);
+ len, FIFO_EVENT_APP_TX, noblock);
}
always_inline int
-app_send_stream_raw (svm_fifo_t * f, svm_queue_t * vpp_evt_q, u8 * data,
- u32 len, u8 noblock)
+app_send_stream_raw (svm_fifo_t * f, svm_msg_q_t * vpp_evt_q, u8 * data,
+ u32 len, u8 evt_type, u8 noblock)
{
- session_fifo_event_t evt;
int rv;
if ((rv = svm_fifo_enqueue_nowait (f, len, data)) > 0)
{
if (svm_fifo_set_event (f))
- {
- evt.fifo = f;
- evt.event_type = FIFO_EVENT_APP_TX;
- svm_queue_add (vpp_evt_q, (u8 *) & evt, noblock);
- }
+ app_send_io_evt_to_vpp (vpp_evt_q, f, evt_type, noblock);
}
return rv;
}
always_inline int
app_send_stream (app_session_t * s, u8 * data, u32 len, u8 noblock)
{
- return app_send_stream_raw (s->tx_fifo, s->vpp_evt_q, data, len, noblock);
+ return app_send_stream_raw (s->tx_fifo, s->vpp_evt_q, data, len,
+ FIFO_EVENT_APP_TX, noblock);
}
always_inline int
always_inline int
app_recv_dgram_raw (svm_fifo_t * f, u8 * buf, u32 len,
- app_session_transport_t * at, u8 clear_evt)
+ app_session_transport_t * at, u8 clear_evt, u8 peek)
{
session_dgram_pre_hdr_t ph;
u32 max_deq;
int rv;
- if (clear_evt)
- svm_fifo_unset_event (f);
max_deq = svm_fifo_max_dequeue (f);
if (max_deq < sizeof (session_dgram_hdr_t))
- return 0;
+ {
+ if (clear_evt)
+ svm_fifo_unset_event (f);
+ return 0;
+ }
+
+ if (clear_evt)
+ svm_fifo_unset_event (f);
svm_fifo_peek (f, 0, sizeof (ph), (u8 *) & ph);
ASSERT (ph.data_length >= ph.data_offset);
svm_fifo_peek (f, sizeof (ph), sizeof (*at), (u8 *) at);
len = clib_min (len, ph.data_length - ph.data_offset);
rv = svm_fifo_peek (f, ph.data_offset + SESSION_CONN_HDR_LEN, len, buf);
+ if (peek)
+ return rv;
ph.data_offset += rv;
if (ph.data_offset == ph.data_length)
svm_fifo_dequeue_drop (f, ph.data_length + SESSION_CONN_HDR_LEN);
always_inline int
app_recv_dgram (app_session_t * s, u8 * buf, u32 len)
{
- return app_recv_dgram_raw (s->rx_fifo, buf, len, &s->transport, 1);
+ return app_recv_dgram_raw (s->rx_fifo, buf, len, &s->transport, 1, 0);
}
always_inline int
-app_recv_stream_raw (svm_fifo_t * f, u8 * buf, u32 len, u8 clear_evt)
+app_recv_stream_raw (svm_fifo_t * f, u8 * buf, u32 len, u8 clear_evt, u8 peek)
{
if (clear_evt)
svm_fifo_unset_event (f);
+
+ if (peek)
+ return svm_fifo_peek (f, 0, len, buf);
+
return svm_fifo_dequeue_nowait (f, len, buf);
}
always_inline int
app_recv_stream (app_session_t * s, u8 * buf, u32 len)
{
- return app_recv_stream_raw (s->rx_fifo, buf, len, 1);
+ return app_recv_stream_raw (s->rx_fifo, buf, len, 1, 0);
}
always_inline int