if (verbose > 1)
s = format
(s, "server session %d thread %d client session %d thread %d\n",
- f->server_session_index, f->server_thread_index,
+ f->master_session_index, f->master_thread_index,
f->client_session_index, f->client_thread_index);
if (verbose)
}
static int
-svm_fifo_enqueue_internal (svm_fifo_t * f,
- int pid, u32 max_bytes, u8 * copy_from_here)
+svm_fifo_enqueue_internal (svm_fifo_t * f, u32 max_bytes, u8 * copy_from_here)
{
u32 total_copy_bytes, first_copy_bytes, second_copy_bytes;
u32 cursize, nitems;
}
int
-svm_fifo_enqueue_nowait (svm_fifo_t * f,
- int pid, u32 max_bytes, u8 * copy_from_here)
+svm_fifo_enqueue_nowait (svm_fifo_t * f, u32 max_bytes, u8 * copy_from_here)
{
- return svm_fifo_enqueue_internal (f, pid, max_bytes, copy_from_here);
+ return svm_fifo_enqueue_internal (f, max_bytes, copy_from_here);
}
/**
*/
static int
svm_fifo_enqueue_with_offset_internal (svm_fifo_t * f,
- int pid,
u32 offset,
u32 required_bytes,
u8 * copy_from_here)
/* Users would do well to avoid this */
if (PREDICT_FALSE (f->tail == (offset % f->nitems)))
{
- rv = svm_fifo_enqueue_internal (f, pid, required_bytes, copy_from_here);
+ rv = svm_fifo_enqueue_internal (f, required_bytes, copy_from_here);
if (rv > 0)
return 0;
return -1;
int
svm_fifo_enqueue_with_offset (svm_fifo_t * f,
- int pid,
u32 offset,
u32 required_bytes, u8 * copy_from_here)
{
- return svm_fifo_enqueue_with_offset_internal
- (f, pid, offset, required_bytes, copy_from_here);
+ return svm_fifo_enqueue_with_offset_internal (f, offset, required_bytes,
+ copy_from_here);
}
static int
-svm_fifo_dequeue_internal (svm_fifo_t * f,
- int pid, u32 max_bytes, u8 * copy_here)
+svm_fifo_dequeue_internal (svm_fifo_t * f, u32 max_bytes, u8 * copy_here)
{
u32 total_copy_bytes, first_copy_bytes, second_copy_bytes;
u32 cursize, nitems;
}
int
-svm_fifo_dequeue_nowait (svm_fifo_t * f,
- int pid, u32 max_bytes, u8 * copy_here)
+svm_fifo_dequeue_nowait (svm_fifo_t * f, u32 max_bytes, u8 * copy_here)
{
- return svm_fifo_dequeue_internal (f, pid, max_bytes, copy_here);
+ return svm_fifo_dequeue_internal (f, max_bytes, copy_here);
}
int
-svm_fifo_peek (svm_fifo_t * f, int pid, u32 relative_offset, u32 max_bytes,
+svm_fifo_peek (svm_fifo_t * f, u32 relative_offset, u32 max_bytes,
u8 * copy_here)
{
u32 total_copy_bytes, first_copy_bytes, second_copy_bytes;
}
int
-svm_fifo_dequeue_drop (svm_fifo_t * f, int pid, u32 max_bytes)
+svm_fifo_dequeue_drop (svm_fifo_t * f, u32 max_bytes)
{
u32 total_drop_bytes, first_drop_bytes, second_drop_bytes;
u32 cursize, nitems;
#include <vppinfra/format.h>
#include <pthread.h>
-typedef enum
-{
- SVM_FIFO_TAG_NOT_HELD = 0,
- SVM_FIFO_TAG_DEQUEUE,
- SVM_FIFO_TAG_ENQUEUE,
-} svm_lock_tag_t;
-
/** Out-of-order segment */
typedef struct
{
u32 prev; /**< Previous linked-list element pool index */
u32 start; /**< Start of segment, normalized*/
- u32 length; /**< Length of segment */
+ u32 length; /**< Length of segment */
} ooo_segment_t;
format_function_t format_ooo_segment;
CLIB_CACHE_LINE_ALIGN_MARK (end_cursize);
volatile u8 has_event; /**< non-zero if deq event exists */
- u32 owner_pid;
/* Backpointers */
- u32 server_session_index;
+ u32 master_session_index;
u32 client_session_index;
- u8 server_thread_index;
+ u8 master_thread_index;
u8 client_thread_index;
u32 segment_manager;
CLIB_CACHE_LINE_ALIGN_MARK (end_shared);
svm_fifo_t *svm_fifo_create (u32 data_size_in_bytes);
void svm_fifo_free (svm_fifo_t * f);
-int svm_fifo_enqueue_nowait (svm_fifo_t * f, int pid, u32 max_bytes,
+int svm_fifo_enqueue_nowait (svm_fifo_t * f, u32 max_bytes,
u8 * copy_from_here);
+int svm_fifo_enqueue_with_offset (svm_fifo_t * f, u32 offset,
+ u32 required_bytes, u8 * copy_from_here);
+int svm_fifo_dequeue_nowait (svm_fifo_t * f, u32 max_bytes, u8 * copy_here);
-int svm_fifo_enqueue_with_offset (svm_fifo_t * f, int pid,
- u32 offset, u32 required_bytes,
- u8 * copy_from_here);
-
-int svm_fifo_dequeue_nowait (svm_fifo_t * f, int pid, u32 max_bytes,
- u8 * copy_here);
-
-int svm_fifo_peek (svm_fifo_t * f, int pid, u32 offset, u32 max_bytes,
- u8 * copy_here);
-int svm_fifo_dequeue_drop (svm_fifo_t * f, int pid, u32 max_bytes);
+int svm_fifo_peek (svm_fifo_t * f, u32 offset, u32 max_bytes, u8 * copy_here);
+int svm_fifo_dequeue_drop (svm_fifo_t * f, u32 max_bytes);
u32 svm_fifo_number_ooo_segments (svm_fifo_t * f);
ooo_segment_t *svm_fifo_first_ooo_segment (svm_fifo_t * f);
return (0);
}
+/** Create an svm fifo segment in process-private memory */
+int
+svm_fifo_segment_create_process_private (svm_fifo_segment_create_args_t * a)
+{
+ svm_fifo_segment_private_t *s;
+ svm_fifo_segment_main_t *sm = &svm_fifo_segment_main;
+ ssvm_shared_header_t *sh;
+ svm_fifo_segment_header_t *fsh;
+
+ /* Allocate a fresh segment */
+ pool_get (sm->segments, s);
+ memset (s, 0, sizeof (*s));
+
+ s->ssvm.ssvm_size = ~0;
+ s->ssvm.i_am_master = 1;
+ s->ssvm.my_pid = getpid ();
+ s->ssvm.name = (u8 *) a->segment_name;
+ s->ssvm.requested_va = ~0;
+
+ /* Allocate a [sic] shared memory header, in process memory... */
+ sh = clib_mem_alloc_aligned (sizeof (*sh), CLIB_CACHE_LINE_BYTES);
+ s->ssvm.sh = sh;
+
+ memset (sh, 0, sizeof (*sh));
+ sh->heap = clib_mem_get_heap ();
+
+ /* Set up svm_fifo_segment shared header */
+ fsh = clib_mem_alloc (sizeof (*fsh));
+ memset (fsh, 0, sizeof (*fsh));
+ sh->opaque[0] = fsh;
+ s->h = fsh;
+ fsh->segment_name = format (0, "%s%c", a->segment_name, 0);
+
+ sh->ready = 1;
+ a->new_segment_index = s - sm->segments;
+ return (0);
+}
+
/** (slave) attach to an svm fifo segment */
int
svm_fifo_segment_attach (svm_fifo_segment_create_args_t * a)
/* Allocate a fresh segment */
pool_get (sm->segments, s);
-
memset (s, 0, sizeof (*s));
s->ssvm.ssvm_size = a->segment_size;
sh = s->ssvm.sh;
fsh = (svm_fifo_segment_header_t *) sh->opaque[0];
+
+ ssvm_lock (sh, 1, 0);
oldheap = ssvm_push_heap (sh);
/* Note: this can fail, in which case: create another segment */
f = svm_fifo_create (data_size_in_bytes);
- if (f == 0)
+ if (PREDICT_FALSE (f == 0))
{
ssvm_pop_heap (oldheap);
+ ssvm_unlock (sh);
return (0);
}
vec_add1 (fsh->fifos, f);
-
ssvm_pop_heap (oldheap);
+ ssvm_unlock (sh);
return (f);
}
sh = s->ssvm.sh;
fsh = (svm_fifo_segment_header_t *) sh->opaque[0];
- oldheap = ssvm_push_heap (sh);
+ ssvm_lock (sh, 1, 0);
+ oldheap = ssvm_push_heap (sh);
for (i = 0; i < vec_len (fsh->fifos); i++)
{
if (fsh->fifos[i] == f)
found:
clib_mem_free (f);
ssvm_pop_heap (oldheap);
+ ssvm_unlock (sh);
}
void
#include <svm/svm_fifo.h>
#include <svm/ssvm.h>
+#include <vppinfra/lock.h>
typedef struct
{
typedef struct
{
+ volatile u32 lock;
+
/** pool of segments */
svm_fifo_segment_private_t *segments;
/* Where to put the next one */
} ssvm_fifo_segment_api_error_enum_t;
int svm_fifo_segment_create (svm_fifo_segment_create_args_t * a);
+int svm_fifo_segment_create_process_private (svm_fifo_segment_create_args_t
+ * a);
int svm_fifo_segment_attach (svm_fifo_segment_create_args_t * a);
void svm_fifo_segment_delete (svm_fifo_segment_private_t * s);
u8 *test_data;
u8 *retrieved_data = 0;
clib_error_t *error = 0;
- int pid = getpid ();
memset (a, 0, sizeof (*a));
vec_validate (retrieved_data, vec_len (test_data) - 1);
while (svm_fifo_max_enqueue (f) >= vec_len (test_data))
- svm_fifo_enqueue_nowait (f, pid, vec_len (test_data), test_data);
+ svm_fifo_enqueue_nowait (f, vec_len (test_data), test_data);
while (svm_fifo_max_dequeue (f) >= vec_len (test_data))
- svm_fifo_dequeue_nowait (f, pid, vec_len (retrieved_data),
- retrieved_data);
+ svm_fifo_dequeue_nowait (f, vec_len (retrieved_data), retrieved_data);
while (svm_fifo_max_enqueue (f) >= vec_len (test_data))
- svm_fifo_enqueue_nowait (f, pid, vec_len (test_data), test_data);
+ svm_fifo_enqueue_nowait (f, vec_len (test_data), test_data);
while (svm_fifo_max_dequeue (f) >= vec_len (test_data))
- svm_fifo_dequeue_nowait (f, pid, vec_len (retrieved_data),
- retrieved_data);
+ svm_fifo_dequeue_nowait (f, vec_len (retrieved_data), retrieved_data);
if (!memcmp (retrieved_data, test_data, vec_len (test_data)))
error = clib_error_return (0, "data test OK, got '%s'", retrieved_data);
u8 *test_data;
u8 *retrieved_data = 0;
int i;
- int pid = getpid ();
memset (a, 0, sizeof (*a));
vec_validate (retrieved_data, vec_len (test_data) - 1);
for (i = 0; i < 1000; i++)
- svm_fifo_enqueue_nowait (f, pid, vec_len (test_data), test_data);
+ svm_fifo_enqueue_nowait (f, vec_len (test_data), test_data);
return clib_error_return (0, "master (enqueue) done");
}
u32 *test_data = 0;
u32 *recovered_data = 0;
int i;
- int pid = getpid ();
memset (a, 0, sizeof (*a));
vec_add1 (test_data, i);
/* Enqueue the first 1024 u32's */
- svm_fifo_enqueue_nowait (f, pid, 4096 /* bytes to enqueue */ ,
+ svm_fifo_enqueue_nowait (f, 4096 /* bytes to enqueue */ ,
(u8 *) test_data);
/* Enqueue the third 1024 u32's 2048 ahead of the current tail */
- svm_fifo_enqueue_with_offset (f, pid, 4096, 4096, (u8 *) & test_data[2048]);
+ svm_fifo_enqueue_with_offset (f, 4096, 4096, (u8 *) & test_data[2048]);
/* Enqueue the second 1024 u32's at the current tail */
- svm_fifo_enqueue_nowait (f, pid, 4096 /* bytes to enqueue */ ,
+ svm_fifo_enqueue_nowait (f, 4096 /* bytes to enqueue */ ,
(u8 *) & test_data[1024]);
vec_validate (recovered_data, (3 * 1024) - 1);
- svm_fifo_dequeue_nowait (f, pid, 3 * 4096, (u8 *) recovered_data);
+ svm_fifo_dequeue_nowait (f, 3 * 4096, (u8 *) recovered_data);
for (i = 0; i < (3 * 1024); i++)
{
int rv;
u8 *test_data;
u8 *retrieved_data = 0;
- int pid = getpid ();
int i;
memset (a, 0, sizeof (*a));
for (i = 0; i < 1000; i++)
{
- svm_fifo_dequeue_nowait (f, pid, vec_len (retrieved_data),
- retrieved_data);
+ svm_fifo_dequeue_nowait (f, vec_len (retrieved_data), retrieved_data);
if (memcmp (retrieved_data, test_data, vec_len (retrieved_data)))
return clib_error_return (0, "retrieved data incorrect, '%s'",
retrieved_data);
svm_fifo_t *server_rx_fifo;
svm_fifo_t *server_tx_fifo;
- u32 vpp_session_handle;
+ u64 vpp_session_handle;
} session_t;
typedef enum
{
STATE_START,
+ STATE_ATTACHED,
STATE_READY,
STATE_DISCONNECTING,
STATE_FAILED
#define NITER 4000000
#endif
+static u8 *
+format_api_error (u8 * s, va_list * args)
+{
+ uri_tcp_test_main_t *utm = &uri_tcp_test_main;
+ i32 error = va_arg (*args, u32);
+ uword *p;
+
+ p = hash_get (utm->error_string_by_error_number, -error);
+
+ if (p)
+ s = format (s, "%s", p[0]);
+ else
+ s = format (s, "%d", error);
+ return s;
+}
+
+static void
+init_error_string_table (uri_tcp_test_main_t * utm)
+{
+ utm->error_string_by_error_number = hash_create (0, sizeof (uword));
+
+#define _(n,v,s) hash_set (utm->error_string_by_error_number, -v, s);
+ foreach_vnet_api_error;
+#undef _
+
+ hash_set (utm->error_string_by_error_number, 99, "Misc");
+}
+
int
wait_for_state_change (uri_tcp_test_main_t * utm, connection_state_t state)
{
}
void
-application_attach (uri_tcp_test_main_t * utm)
+application_send_attach (uri_tcp_test_main_t * utm)
{
vl_api_application_attach_t *bmp;
u32 fifo_size = 3 << 20;
bmp->_vl_msg_id = ntohs (VL_API_APPLICATION_ATTACH);
bmp->client_index = utm->my_client_index;
bmp->context = ntohl (0xfeedface);
- bmp->options[SESSION_OPTIONS_FLAGS] =
- SESSION_OPTIONS_FLAGS_USE_FIFO | SESSION_OPTIONS_FLAGS_ADD_SEGMENT;
+ bmp->options[APP_OPTIONS_FLAGS] =
+ APP_OPTIONS_FLAGS_USE_FIFO | APP_OPTIONS_FLAGS_ADD_SEGMENT;
bmp->options[SESSION_OPTIONS_RX_FIFO_SIZE] = fifo_size;
bmp->options[SESSION_OPTIONS_TX_FIFO_SIZE] = fifo_size;
bmp->options[SESSION_OPTIONS_ADD_SEGMENT_SIZE] = 128 << 20;
vl_msg_api_send_shmem (utm->vl_input_queue, (u8 *) & bmp);
}
+int
+application_attach (uri_tcp_test_main_t * utm)
+{
+ application_send_attach (utm);
+ if (wait_for_state_change (utm, STATE_ATTACHED))
+ {
+ clib_warning ("timeout waiting for STATE_ATTACHED");
+ return -1;
+ }
+ return 0;
+}
+
void
application_detach (uri_tcp_test_main_t * utm)
{
if (mp->retval)
{
- uword *errp = hash_get (utm->error_string_by_error_number, -mp->retval);
- clib_warning ("attach failed: %s", *errp);
+ clib_warning ("attach failed: %U", format_api_error,
+ clib_net_to_host_u32 (mp->retval));
utm->state = STATE_FAILED;
return;
}
utm->our_event_queue =
(unix_shared_memory_queue_t *) mp->app_event_queue_address;
-
+ utm->state = STATE_ATTACHED;
}
static void
clib_warning ("detach returned with err: %d", mp->retval);
}
-static void
-init_error_string_table (uri_tcp_test_main_t * utm)
-{
- utm->error_string_by_error_number = hash_create (0, sizeof (uword));
-
-#define _(n,v,s) hash_set (utm->error_string_by_error_number, -v, s);
- foreach_vnet_api_error;
-#undef _
-
- hash_set (utm->error_string_by_error_number, 99, "Misc");
-}
-
static void
stop_signal (int signum)
{
/* Read the bytes */
do
{
- n_read = svm_fifo_dequeue_nowait (rx_fifo, 0,
+ n_read = svm_fifo_dequeue_nowait (rx_fifo,
clib_min (vec_len (utm->rx_buf),
bytes), utm->rx_buf);
if (n_read > 0)
0 /* nowait */ );
switch (e->event_type)
{
- case FIFO_EVENT_SERVER_RX:
+ case FIFO_EVENT_APP_RX:
client_handle_fifo_event_rx (utm, e);
break;
- case FIFO_EVENT_SERVER_EXIT:
+ case FIFO_EVENT_DISCONNECT:
return;
default:
0 /* nowait */ );
switch (e->event_type)
{
- case FIFO_EVENT_SERVER_RX:
+ case FIFO_EVENT_APP_RX:
client_handle_fifo_event_rx (utm, e);
break;
- case FIFO_EVENT_SERVER_EXIT:
+ case FIFO_EVENT_DISCONNECT:
return 0;
default:
clib_warning ("unknown event type %d", e->event_type);
if (mp->retval)
{
- uword *errp = hash_get (utm->error_string_by_error_number,
- -clib_net_to_host_u32 (mp->retval));
- clib_warning ("connection failed with code: %s", *errp);
+ clib_warning ("connection failed with code: %U", format_api_error,
+ clib_net_to_host_u32 (mp->retval));
utm->state = STATE_FAILED;
return;
}
{
actual_write =
bytes_to_snd > queue_max_chunk ? queue_max_chunk : bytes_to_snd;
- rv = svm_fifo_enqueue_nowait (tx_fifo, mypid, actual_write,
+ rv = svm_fifo_enqueue_nowait (tx_fifo, actual_write,
test_data + test_buf_offset);
if (rv > 0)
{
/* Fabricate TX event, send to vpp */
evt.fifo = tx_fifo;
- evt.event_type = FIFO_EVENT_SERVER_TX;
+ evt.event_type = FIFO_EVENT_APP_TX;
evt.event_id = serial_number++;
unix_shared_memory_queue_add (utm->vpp_event_queue,
}
void
-client_connect (uri_tcp_test_main_t * utm)
+client_send_connect (uri_tcp_test_main_t * utm)
{
vl_api_connect_uri_t *cmp;
cmp = vl_msg_api_alloc (sizeof (*cmp));
vl_msg_api_send_shmem (utm->vl_input_queue, (u8 *) & cmp);
}
+int
+client_connect (uri_tcp_test_main_t * utm)
+{
+ client_send_connect (utm);
+ if (wait_for_state_change (utm, STATE_READY))
+ {
+ clib_warning ("Connect failed");
+ return -1;
+ }
+ return 0;
+}
+
void
-client_disconnect (uri_tcp_test_main_t * utm)
+client_send_disconnect (uri_tcp_test_main_t * utm)
{
session_t *connected_session;
vl_api_disconnect_session_t *dmp;
vl_msg_api_send_shmem (utm->vl_input_queue, (u8 *) & dmp);
}
+int
+client_disconnect (uri_tcp_test_main_t * utm)
+{
+ client_send_disconnect (utm);
+ if (wait_for_state_change (utm, STATE_START))
+ {
+ clib_warning ("Disconnect failed");
+ return -1;
+ }
+ return 0;
+}
+
static void
client_test (uri_tcp_test_main_t * utm)
{
int i;
- application_attach (utm);
- client_connect (utm);
+ if (application_attach (utm))
+ return;
- if (wait_for_state_change (utm, STATE_READY))
+ if (client_connect (utm))
{
+ application_detach (utm);
return;
}
/* Disconnect */
client_disconnect (utm);
- if (wait_for_state_change (utm, STATE_START))
- {
- clib_warning ("Disconnect failed");
- return;
- }
application_detach (utm);
}
if (mp->retval)
{
- uword *errp = hash_get (utm->error_string_by_error_number,
- -clib_net_to_host_u32 (mp->retval));
- clib_warning ("bind failed: %s", (char *) *errp);
+ clib_warning ("bind failed: %s", format_api_error,
+ clib_net_to_host_u32 (mp->retval));
utm->state = STATE_FAILED;
return;
}
/* Read the bytes */
do
{
- n_read = svm_fifo_dequeue_nowait (rx_fifo, 0, vec_len (utm->rx_buf),
+ n_read = svm_fifo_dequeue_nowait (rx_fifo, vec_len (utm->rx_buf),
utm->rx_buf);
if (n_read > 0)
bytes -= n_read;
{
do
{
- rv = svm_fifo_enqueue_nowait (tx_fifo, 0, n_read, utm->rx_buf);
+ rv = svm_fifo_enqueue_nowait (tx_fifo, n_read, utm->rx_buf);
}
while (rv <= 0 && !utm->time_to_stop);
{
/* Fabricate TX event, send to vpp */
evt.fifo = tx_fifo;
- evt.event_type = FIFO_EVENT_SERVER_TX;
+ evt.event_type = FIFO_EVENT_APP_TX;
evt.event_id = e->event_id;
q = utm->vpp_event_queue;
0 /* nowait */ );
switch (e->event_type)
{
- case FIFO_EVENT_SERVER_RX:
+ case FIFO_EVENT_APP_RX:
server_handle_fifo_event_rx (utm, e);
break;
- case FIFO_EVENT_SERVER_EXIT:
+ case FIFO_EVENT_DISCONNECT:
return;
default:
}
void
-server_listen (uri_tcp_test_main_t * utm)
+server_send_listen (uri_tcp_test_main_t * utm)
{
vl_api_bind_uri_t *bmp;
bmp = vl_msg_api_alloc (sizeof (*bmp));
vl_msg_api_send_shmem (utm->vl_input_queue, (u8 *) & bmp);
}
+int
+server_listen (uri_tcp_test_main_t * utm)
+{
+ server_send_listen (utm);
+ if (wait_for_state_change (utm, STATE_READY))
+ {
+ clib_warning ("timeout waiting for STATE_READY");
+ return -1;
+ }
+ return 0;
+}
+
void
-server_unbind (uri_tcp_test_main_t * utm)
+server_send_unbind (uri_tcp_test_main_t * utm)
{
vl_api_unbind_uri_t *ump;
vl_msg_api_send_shmem (utm->vl_input_queue, (u8 *) & ump);
}
+int
+server_unbind (uri_tcp_test_main_t * utm)
+{
+ server_send_unbind (utm);
+ if (wait_for_state_change (utm, STATE_START))
+ {
+ clib_warning ("timeout waiting for STATE_START");
+ return -1;
+ }
+ return 0;
+}
+
void
server_test (uri_tcp_test_main_t * utm)
{
- application_attach (utm);
+ if (application_attach (utm))
+ return;
/* Bind to uri */
- server_listen (utm);
-
- if (wait_for_state_change (utm, STATE_READY))
- {
- clib_warning ("timeout waiting for STATE_READY");
- return;
- }
+ if (server_listen (utm))
+ return;
/* Enter handle event loop */
server_handle_event_queue (utm);
/* Cleanup */
- server_unbind (utm);
-
- if (wait_for_state_change (utm, STATE_START))
- {
- clib_warning ("timeout waiting for STATE_START");
- return;
- }
+ server_send_unbind (utm);
application_detach (utm);
}
void
-application_attach (uri_udp_test_main_t * utm)
+application_send_attach (uri_udp_test_main_t * utm)
{
vl_api_application_attach_t *bmp;
u32 fifo_size = 3 << 20;
bmp->_vl_msg_id = ntohs (VL_API_APPLICATION_ATTACH);
bmp->client_index = utm->my_client_index;
bmp->context = ntohl (0xfeedface);
- bmp->options[SESSION_OPTIONS_FLAGS] =
- SESSION_OPTIONS_FLAGS_USE_FIFO | SESSION_OPTIONS_FLAGS_ADD_SEGMENT;
+ bmp->options[APP_OPTIONS_FLAGS] =
+ APP_OPTIONS_FLAGS_USE_FIFO | APP_OPTIONS_FLAGS_ADD_SEGMENT;
bmp->options[SESSION_OPTIONS_RX_FIFO_SIZE] = fifo_size;
bmp->options[SESSION_OPTIONS_TX_FIFO_SIZE] = fifo_size;
bmp->options[SESSION_OPTIONS_ADD_SEGMENT_SIZE] = 128 << 20;
/* We read from the tx fifo and write to the rx fifo */
do
{
- actual_transfer = svm_fifo_dequeue_nowait (tx_fifo, 0,
+ actual_transfer = svm_fifo_dequeue_nowait (tx_fifo,
vec_len (my_copy_buffer),
my_copy_buffer);
}
buffer_offset = 0;
while (actual_transfer > 0)
{
- rv = svm_fifo_enqueue_nowait (rx_fifo, 0, actual_transfer,
+ rv = svm_fifo_enqueue_nowait (rx_fifo, actual_transfer,
my_copy_buffer + buffer_offset);
if (rv > 0)
{
u64 bytes_received = 0, bytes_sent = 0;
i32 bytes_to_read;
int rv;
- int mypid = getpid ();
f64 before, after, delta, bytes_per_second;
svm_fifo_t *rx_fifo, *tx_fifo;
int buffer_offset, bytes_to_send = 0;
buffer_offset = 0;
while (bytes_to_send > 0)
{
- rv = svm_fifo_enqueue_nowait (tx_fifo, mypid,
- bytes_to_send,
+ rv = svm_fifo_enqueue_nowait (tx_fifo, bytes_to_send,
test_data + buffer_offset);
if (rv > 0)
buffer_offset = 0;
while (bytes_to_read > 0)
{
- rv = svm_fifo_dequeue_nowait (rx_fifo, mypid,
+ rv = svm_fifo_dequeue_nowait (rx_fifo,
bytes_to_read,
utm->rx_buf + buffer_offset);
if (rv > 0)
}
while (bytes_received < bytes_sent)
{
- rv = svm_fifo_dequeue_nowait (rx_fifo, mypid,
- vec_len (utm->rx_buf), utm->rx_buf);
+ rv =
+ svm_fifo_dequeue_nowait (rx_fifo, vec_len (utm->rx_buf), utm->rx_buf);
if (rv > 0)
{
#if CLIB_DEBUG > 0
{
session_t *session;
- application_attach (utm);
+ application_send_attach (utm);
udp_client_connect (utm);
if (wait_for_state_change (utm, STATE_READY))
128 * 1024);
ASSERT (session->server_tx_fifo);
- session->server_rx_fifo->server_session_index = session - utm->sessions;
- session->server_tx_fifo->server_session_index = session - utm->sessions;
+ session->server_rx_fifo->master_session_index = session - utm->sessions;
+ session->server_tx_fifo->master_session_index = session - utm->sessions;
utm->cut_through_session_index = session - utm->sessions;
rv = pthread_create (&utm->cut_through_thread_handle,
do
{
- nbytes = svm_fifo_dequeue_nowait (rx_fifo, 0,
- vec_len (utm->rx_buf), utm->rx_buf);
+ nbytes = svm_fifo_dequeue_nowait (rx_fifo, vec_len (utm->rx_buf),
+ utm->rx_buf);
}
while (nbytes <= 0);
do
{
- rv = svm_fifo_enqueue_nowait (tx_fifo, 0, nbytes, utm->rx_buf);
+ rv = svm_fifo_enqueue_nowait (tx_fifo, nbytes, utm->rx_buf);
}
while (rv == -2);
/* Fabricate TX event, send to vpp */
evt.fifo = tx_fifo;
- evt.event_type = FIFO_EVENT_SERVER_TX;
+ evt.event_type = FIFO_EVENT_APP_TX;
evt.event_id = e->event_id;
if (svm_fifo_set_event (tx_fifo))
0 /* nowait */ );
switch (e->event_type)
{
- case FIFO_EVENT_SERVER_RX:
+ case FIFO_EVENT_APP_RX:
server_handle_fifo_event_rx (utm, e);
break;
- case FIFO_EVENT_SERVER_EXIT:
+ case FIFO_EVENT_DISCONNECT:
return;
default:
udp_server_test (uri_udp_test_main_t * utm)
{
- application_attach (utm);
+ application_send_attach (utm);
/* Bind to uri */
server_listen (utm);
void
application_del (application_t * app)
{
- api_main_t *am = &api_main;
- void *oldheap;
segment_manager_t *sm;
u64 handle;
u32 index, *handles = 0;
int i;
vnet_unbind_args_t _a, *a = &_a;
+ /*
+ * The app event queue allocated in first segment is cleared with
+ * the segment manager. No need to explicitly free it.
+ */
+
/*
* Cleanup segment managers
*/
vnet_unbind (a);
}
- /*
- * Free the event fifo in the /vpe-api shared-memory segment
- */
- oldheap = svm_push_data_heap (am->vlib_rp);
- if (app->event_queue)
- unix_shared_memory_queue_free (app->event_queue);
- svm_pop_heap (oldheap);
-
application_table_del (app);
pool_put (app_pool, app);
}
application_init (application_t * app, u32 api_client_index, u64 * options,
session_cb_vft_t * cb_fns)
{
- api_main_t *am = &api_main;
segment_manager_t *sm;
segment_manager_properties_t *props;
- void *oldheap;
- u32 app_evt_queue_size;
+ u32 app_evt_queue_size, first_seg_size;
int rv;
app_evt_queue_size = options[APP_EVT_QUEUE_SIZE] > 0 ?
options[APP_EVT_QUEUE_SIZE] : default_app_evt_queue_size;
- /* Allocate event fifo in the /vpe-api shared-memory segment */
- oldheap = svm_push_data_heap (am->vlib_rp);
-
- /* Allocate server event queue */
- app->event_queue =
- unix_shared_memory_queue_init (app_evt_queue_size,
- sizeof (session_fifo_event_t),
- 0 /* consumer pid */ ,
- 0
- /* (do not) signal when queue non-empty */
- );
-
- svm_pop_heap (oldheap);
-
/* Setup segment manager */
sm = segment_manager_new ();
sm->app_index = app->index;
props->rx_fifo_size = options[SESSION_OPTIONS_RX_FIFO_SIZE];
props->tx_fifo_size = options[SESSION_OPTIONS_TX_FIFO_SIZE];
props->add_segment = props->add_segment_size != 0;
+ props->use_private_segment = options[APP_OPTIONS_FLAGS]
+ & APP_OPTIONS_FLAGS_BUILTIN_APP;
- if ((rv = segment_manager_init (sm, props,
- options[SESSION_OPTIONS_SEGMENT_SIZE])))
+ first_seg_size = options[SESSION_OPTIONS_SEGMENT_SIZE];
+ if ((rv = segment_manager_init (sm, props, first_seg_size)))
return rv;
app->first_segment_manager = segment_manager_index (sm);
app->api_client_index = api_client_index;
- app->flags = options[SESSION_OPTIONS_FLAGS];
+ app->flags = options[APP_OPTIONS_FLAGS];
app->cb_fns = *cb_fns;
+ /* Allocate app event queue in the first shared-memory segment */
+ app->event_queue = segment_manager_alloc_queue (sm, app_evt_queue_size);
+
/* Check that the obvious things are properly set up */
application_verify_cb_fns (cb_fns);
continue;
fifo = fifos[i];
- session_index = fifo->server_session_index;
- thread_index = fifo->server_thread_index;
+ session_index = fifo->master_session_index;
+ thread_index = fifo->master_thread_index;
session = stream_session_get (session_index, thread_index);
str = format (0, "%U", format_stream_session, session, verbose);
/** Flags */
u32 flags;
- /* Stream server mode: accept or connect
- * TODO REMOVE*/
- u8 mode;
-
- /** Index of the listen session or connect session
- * TODO REMOVE*/
- u32 session_index;
-
- /** Session thread index for client connect sessions
- * TODO REMOVE */
- u32 thread_index;
-
/*
* Binary API interface to external app
*/
* Server is willing to have a direct fifo connection created
* instead of going through the state machine, etc.
*/
- if (server->flags & SESSION_OPTIONS_FLAGS_USE_FIFO)
+ if (server->flags & APP_OPTIONS_FLAGS_USE_FIFO)
return server->cb_fns.
redirect_connect_callback (server->api_client_index, mp);
}
if (!s || s->app_index != a->app_index)
return VNET_API_ERROR_INVALID_VALUE;
- stream_session_disconnect (s);
+ /* We're peeking into another's thread pool. Make sure */
+ ASSERT (s->session_index == index);
+
+ session_send_session_evt_to_thread (a->handle, FIFO_EVENT_DISCONNECT,
+ thread_index);
return 0;
}
return vnet_connect_i (a->app_index, a->api_context, sst, &a->tep, a->mp);
}
-int
-vnet_disconnect (vnet_disconnect_args_t * a)
-{
- stream_session_t *session;
- u32 session_index, thread_index;
-
- if (api_parse_session_handle (a->handle, &session_index, &thread_index))
- {
- clib_warning ("Invalid handle");
- return -1;
- }
-
- session = stream_session_get (session_index, thread_index);
- stream_session_disconnect (session);
-
- return 0;
-}
-
/*
* fd.io coding-style-patch-verification: ON
*
typedef struct _vnet_app_attach_args_t
{
+ /** Binary API client index */
u32 api_client_index;
+
+ /** Application and segment manager options */
u64 *options;
+
+ /** Session to application callback functions */
session_cb_vft_t *session_cb_vft;
+ /** Flag that indicates if app is builtin */
+ u8 builtin;
+
/*
* Results
*/
typedef enum
{
APP_EVT_QUEUE_SIZE,
- SESSION_OPTIONS_FLAGS,
+ APP_OPTIONS_FLAGS,
SESSION_OPTIONS_SEGMENT_SIZE,
SESSION_OPTIONS_ADD_SEGMENT_SIZE,
SESSION_OPTIONS_RX_FIFO_SIZE,
SESSION_OPTIONS_N_OPTIONS
} app_attach_options_index_t;
-/** Server can handle delegated connect requests from local clients */
-#define SESSION_OPTIONS_FLAGS_USE_FIFO (1<<0)
+#define foreach_app_options_flags \
+ _(USE_FIFO, "Use FIFO with redirects") \
+ _(ADD_SEGMENT, "Add segment and signal app if needed") \
+ _(BUILTIN_APP, "Application is builtin") \
+
+typedef enum _app_options
+{
+#define _(sym, str) APP_OPTIONS_##sym,
+ foreach_app_options_flags
+#undef _
+} app_options_t;
+
+typedef enum _app_options_flags
+{
+#define _(sym, str) APP_OPTIONS_FLAGS_##sym = 1 << APP_OPTIONS_##sym,
+ foreach_app_options_flags
+#undef _
+} app_options_flags_t;
-/** Server wants vpp to add segments when out of memory for fifos */
-#define SESSION_OPTIONS_FLAGS_ADD_SEGMENT (1<<1)
+///** Server can handle delegated connect requests from local clients */
+//#define APP_OPTIONS_FLAGS_USE_FIFO (1<<0)
+//
+///** Server wants vpp to add segments when out of memory for fifos */
+//#define APP_OPTIONS_FLAGS_ADD_SEGMENT (1<<1)
#define VNET_CONNECT_REDIRECTED 123
int vnet_bind (vnet_bind_args_t * a);
int vnet_connect (vnet_connect_args_t * a);
int vnet_unbind (vnet_unbind_args_t * a);
-int vnet_disconnect (vnet_disconnect_args_t * a);
int
api_parse_session_handle (u64 handle, u32 * session_index,
* 2) buffer chains */
if (peek_data)
{
- n_bytes_read = svm_fifo_peek (s0->server_tx_fifo, s0->pid,
- rx_offset, len_to_deq0, data0);
+ n_bytes_read = svm_fifo_peek (s0->server_tx_fifo, rx_offset,
+ len_to_deq0, data0);
if (n_bytes_read <= 0)
goto dequeue_fail;
else
{
n_bytes_read = svm_fifo_dequeue_nowait (s0->server_tx_fifo,
- s0->pid, len_to_deq0,
- data0);
+ len_to_deq0, data0);
if (n_bytes_read <= 0)
goto dequeue_fail;
}
n_tx_pkts, 0);
}
+stream_session_t *
+session_event_get_session (session_fifo_event_t * e0, u8 thread_index)
+{
+ svm_fifo_t *f0;
+ stream_session_t *s0;
+ u32 session_index0;
+
+ f0 = e0->fifo;
+ session_index0 = f0->master_session_index;
+
+ /* $$$ add multiple event queues, per vpp worker thread */
+ ASSERT (f0->master_thread_index == thread_index);
+
+ s0 = stream_session_get_if_valid (session_index0, thread_index);
+
+ ASSERT (s0->thread_index == thread_index);
+
+ return s0;
+}
+
static uword
session_queue_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
vlib_frame_t * frame)
n_events = vec_len (my_fifo_events);
for (i = 0; i < n_events; i++)
{
- svm_fifo_t *f0; /* $$$ prefetch 1 ahead maybe */
- stream_session_t *s0;
- u32 session_index0;
+ stream_session_t *s0; /* $$$ prefetch 1 ahead maybe */
session_fifo_event_t *e0;
e0 = &my_fifo_events[i];
- f0 = e0->fifo;
- session_index0 = f0->server_session_index;
-
- /* $$$ add multiple event queues, per vpp worker thread */
- ASSERT (f0->server_thread_index == my_thread_index);
- s0 = stream_session_get_if_valid (session_index0, my_thread_index);
-
- if (CLIB_DEBUG && !s0)
+ switch (e0->event_type)
{
- clib_warning ("It's dead, Jim!");
- continue;
- }
-
- if (PREDICT_FALSE (s0->session_state == SESSION_STATE_CLOSED))
- continue;
+ case FIFO_EVENT_APP_TX:
+ s0 = session_event_get_session (e0, my_thread_index);
- ASSERT (s0->thread_index == my_thread_index);
+ if (CLIB_DEBUG && !s0)
+ {
+ clib_warning ("It's dead, Jim!");
+ continue;
+ }
- switch (e0->event_type)
- {
- case FIFO_EVENT_SERVER_TX:
+ if (PREDICT_FALSE (s0->session_state == SESSION_STATE_CLOSED))
+ continue;
/* Spray packets in per session type frames, since they go to
* different nodes */
rv = (smm->session_tx_fns[s0->session_type]) (vm, node, smm, e0, s0,
goto done;
break;
- case FIFO_EVENT_SERVER_EXIT:
+ case FIFO_EVENT_DISCONNECT:
+ s0 = stream_session_get_from_handle (e0->session_handle);
stream_session_disconnect (s0);
break;
case FIFO_EVENT_BUILTIN_RX:
+ s0 = session_event_get_session (e0, my_thread_index);
svm_fifo_unset_event (s0->server_rx_fifo);
/* Get session's server */
app = application_get (s0->app_index);
*/
segment_manager_t *segment_managers = 0;
+/**
+ * Process private segment index
+ */
+u32 private_segment_index = ~0;
+
/**
* Default fifo and segment size. TODO config.
*/
return rv;
}
+static void
+segment_manager_alloc_process_private_segment ()
+{
+ svm_fifo_segment_create_args_t _a, *a = &_a;
+
+ if (private_segment_index != ~0)
+ return;
+
+ memset (a, 0, sizeof (*a));
+ a->segment_name = "process-private-segment";
+ a->segment_size = ~0;
+ a->new_segment_index = ~0;
+
+ if (svm_fifo_segment_create_process_private (a))
+ clib_warning ("Failed to create process private segment");
+
+ private_segment_index = a->new_segment_index;
+ ASSERT (private_segment_index != ~0);
+}
+
/**
* Initializes segment manager based on options provided.
* Returns error if svm segment allocation fails.
/* app allocates these */
sm->properties = properties;
- if (first_seg_size > 0)
+ first_seg_size = first_seg_size > 0 ? first_seg_size : default_segment_size;
+
+ if (sm->properties->use_private_segment == 0)
{
rv = session_manager_add_first_segment (sm, first_seg_size);
if (rv)
return rv;
}
}
+ else
+ {
+ if (private_segment_index == ~0)
+ segment_manager_alloc_process_private_segment ();
+ ASSERT (private_segment_index != ~0);
+ vec_add1 (sm->segment_indices, private_segment_index);
+ }
+ clib_spinlock_init (&sm->lockp);
return 0;
}
stream_session_t *session;
fifo = fifos[i];
- session_index = fifo->server_session_index;
- thread_index = fifo->server_thread_index;
+ session_index = fifo->master_session_index;
+ thread_index = fifo->master_thread_index;
session = stream_session_get (session_index, thread_index);
deleted_thread_indices[i]);
/* Instead of directly removing the session call disconnect */
- stream_session_disconnect (session);
+ session_send_session_evt_to_thread (stream_session_handle (session),
+ FIFO_EVENT_DISCONNECT,
+ deleted_thread_indices[i]);
/*
stream_session_table_del (smm, session);
/* svm_fifo_segment_delete (fifo_segment); */
}
+ clib_spinlock_free (&sm->lockp);
vec_free (deleted_sessions);
vec_free (deleted_thread_indices);
pool_put (segment_managers, sm);
u8 added_a_segment = 0;
int i;
- /* Allocate svm fifos */
ASSERT (vec_len (sm->segment_indices));
+ /* Make sure we don't have multiple threads trying to allocate segments
+ * at the same time. */
+ clib_spinlock_lock (&sm->lockp);
+
+ /* Allocate svm fifos */
again:
for (i = 0; i < vec_len (sm->segment_indices); i++)
{
}
if (session_manager_add_segment (sm))
- return VNET_API_ERROR_URI_FIFO_CREATE_FAILED;
+ {
+ return VNET_API_ERROR_URI_FIFO_CREATE_FAILED;
+ }
added_a_segment = 1;
goto again;
}
}
- if (added_a_segment)
- return segment_manager_notify_app_seg_add (sm, *fifo_segment_index);
-
/* Backpointers to segment manager */
sm_index = segment_manager_index (sm);
(*server_tx_fifo)->segment_manager = sm_index;
(*server_rx_fifo)->segment_manager = sm_index;
+ clib_spinlock_unlock (&sm->lockp);
+
+ if (added_a_segment)
+ return segment_manager_notify_app_seg_add (sm, *fifo_segment_index);
+
return 0;
}
segment_manager_t *sm;
svm_fifo_segment_private_t *fifo_segment;
+ sm = segment_manager_get_if_valid (rx_fifo->segment_manager);
+
+ /* It's possible to have no segment manager if the session was removed
+ * as result of a detach */
+ if (!sm)
+ return;
+
fifo_segment = svm_fifo_get_segment (svm_segment_index);
svm_fifo_segment_free_fifo (fifo_segment, rx_fifo);
svm_fifo_segment_free_fifo (fifo_segment, tx_fifo);
- /* If we have segment manager, try doing some cleanup.
- * It's possible to have no segment manager if the session was removed
- * as result of a detach */
- sm = segment_manager_get_if_valid (rx_fifo->segment_manager);
- if (sm)
+ /* Remove segment only if it holds no fifos and not the first */
+ if (sm->segment_indices[0] != svm_segment_index
+ && !svm_fifo_segment_has_fifos (fifo_segment))
{
- /* Remove segment only if it holds no fifos and not the first */
- if (sm->segment_indices[0] != svm_segment_index
- && !svm_fifo_segment_has_fifos (fifo_segment))
- {
- svm_fifo_segment_delete (fifo_segment);
- vec_del1 (sm->segment_indices, svm_segment_index);
- }
+ svm_fifo_segment_delete (fifo_segment);
+ vec_del1 (sm->segment_indices, svm_segment_index);
}
}
+/**
+ * Allocates shm queue in the first segment
+ */
+unix_shared_memory_queue_t *
+segment_manager_alloc_queue (segment_manager_t * sm, u32 queue_size)
+{
+ ssvm_shared_header_t *sh;
+ svm_fifo_segment_private_t *segment;
+ unix_shared_memory_queue_t *q;
+ void *oldheap;
+
+ ASSERT (sm->segment_indices != 0);
+
+ segment = svm_fifo_get_segment (sm->segment_indices[0]);
+ sh = segment->ssvm.sh;
+
+ oldheap = ssvm_push_heap (sh);
+ q =
+ unix_shared_memory_queue_init (queue_size, sizeof (session_fifo_event_t),
+ 0 /* consumer pid */ , 0
+ /* signal when queue non-empty */ );
+ ssvm_pop_heap (oldheap);
+ return q;
+}
+
+/**
+ * Frees shm queue allocated in the first segment
+ */
+void
+segment_manager_dealloc_queue (segment_manager_t * sm,
+ unix_shared_memory_queue_t * q)
+{
+ ssvm_shared_header_t *sh;
+ svm_fifo_segment_private_t *segment;
+ void *oldheap;
+
+ ASSERT (sm->segment_indices != 0);
+
+ segment = svm_fifo_get_segment (sm->segment_indices[0]);
+ sh = segment->ssvm.sh;
+
+ oldheap = ssvm_push_heap (sh);
+ unix_shared_memory_queue_free (q);
+ ssvm_pop_heap (oldheap);
+}
+
/*
* fd.io coding-style-patch-verification: ON
*
#include <vnet/vnet.h>
#include <svm/svm_fifo_segment.h>
+#include <vlibmemory/unix_shared_memory_queue.h>
+#include <vlibmemory/api.h>
+#include <vppinfra/lock.h>
+
typedef struct _segment_manager_properties
{
/** Session fifo sizes. */
/** Flag that indicates if additional segments should be created */
u8 add_segment;
+ /** Use private memory segment instead of shared memory */
+ u8 use_private_segment;
} segment_manager_properties_t;
typedef struct _segment_manager
{
+ clib_spinlock_t lockp;
+
/** segments mapped by this manager */
u32 *segment_indices;
void
segment_manager_dealloc_fifos (u32 svm_segment_index, svm_fifo_t * rx_fifo,
svm_fifo_t * tx_fifo);
+unix_shared_memory_queue_t *segment_manager_alloc_queue (segment_manager_t *
+ sm, u32 queue_size);
+void segment_manager_dealloc_queue (segment_manager_t * sm,
+ unix_shared_memory_queue_t * q);
#endif /* SRC_VNET_SESSION_SEGMENT_MANAGER_H_ */
/*
return 0;
}
-/**
- * Allocate vpp event queue (once) per worker thread
- */
-void
-session_vpp_event_queue_allocate (session_manager_main_t * smm,
- u32 thread_index)
-{
- api_main_t *am = &api_main;
- void *oldheap;
-
- if (smm->vpp_event_queues[thread_index] == 0)
- {
- /* Allocate event fifo in the /vpe-api shared-memory segment */
- oldheap = svm_push_data_heap (am->vlib_rp);
-
- smm->vpp_event_queues[thread_index] =
- unix_shared_memory_queue_init (2048 /* nels $$$$ config */ ,
- sizeof (session_fifo_event_t),
- 0 /* consumer pid */ ,
- 0
- /* (do not) send signal when queue non-empty */
- );
-
- svm_pop_heap (oldheap);
- }
-}
-
int
stream_session_create_i (segment_manager_t * sm, transport_connection_t * tc,
stream_session_t ** ret_s)
/* Initialize backpointers */
pool_index = s - smm->sessions[thread_index];
- server_rx_fifo->server_session_index = pool_index;
- server_rx_fifo->server_thread_index = thread_index;
+ server_rx_fifo->master_session_index = pool_index;
+ server_rx_fifo->master_thread_index = thread_index;
- server_tx_fifo->server_session_index = pool_index;
- server_tx_fifo->server_thread_index = thread_index;
+ server_tx_fifo->master_session_index = pool_index;
+ server_tx_fifo->master_thread_index = thread_index;
s->server_rx_fifo = server_rx_fifo;
s->server_tx_fifo = server_tx_fifo;
if (PREDICT_FALSE (len > svm_fifo_max_enqueue (s->server_rx_fifo)))
return -1;
- enqueued = svm_fifo_enqueue_nowait (s->server_rx_fifo, s->pid, len, data);
+ enqueued = svm_fifo_enqueue_nowait (s->server_rx_fifo, len, data);
if (queue_event)
{
u32 offset, u32 max_bytes)
{
stream_session_t *s = stream_session_get (tc->s_index, tc->thread_index);
- return svm_fifo_peek (s->server_tx_fifo, s->pid, offset, max_bytes, buffer);
+ return svm_fifo_peek (s->server_tx_fifo, offset, max_bytes, buffer);
}
u32
stream_session_dequeue_drop (transport_connection_t * tc, u32 max_bytes)
{
stream_session_t *s = stream_session_get (tc->s_index, tc->thread_index);
- return svm_fifo_dequeue_drop (s->server_tx_fifo, s->pid, max_bytes);
+ return svm_fifo_dequeue_drop (s->server_tx_fifo, max_bytes);
}
/**
{
/* Fabricate event */
evt.fifo = s->server_rx_fifo;
- evt.event_type = FIFO_EVENT_SERVER_RX;
+ evt.event_type = FIFO_EVENT_APP_RX;
evt.event_id = serial_number++;
/* Add event to server's event queue */
return 0;
}
+void
+session_send_session_evt_to_thread (u64 session_handle,
+ fifo_event_type_t evt_type,
+ u32 thread_index)
+{
+ static u16 serial_number = 0;
+ session_fifo_event_t evt;
+ unix_shared_memory_queue_t *q;
+
+ /* Fabricate event */
+ evt.session_handle = session_handle;
+ evt.event_type = evt_type;
+ evt.event_id = serial_number++;
+
+ q = session_manager_get_vpp_event_queue (thread_index);
+
+ /* Based on request block (or not) for lack of space */
+ if (PREDICT_TRUE (q->cursize < q->maxsize))
+ unix_shared_memory_queue_add (q, (u8 *) & evt,
+ 0 /* do wait for mutex */ );
+ else
+ {
+ clib_warning ("queue full");
+ return;
+ }
+}
+
/**
* Disconnect session and propagate to transport. This should eventually
* result in a delete notification that allows us to cleanup session state.
* Called for both active/passive disconnects.
+ *
+ * Should be called from the session's thread.
*/
void
stream_session_disconnect (stream_session_t * s)
{
-// session_fifo_event_t evt;
-
s->session_state = SESSION_STATE_CLOSED;
- /* RPC to vpp evt queue in the right thread */
-
tp_vfts[s->session_type].close (s->connection_index, s->thread_index);
-
-// {
-// /* Fabricate event */
-// evt.fifo = s->server_rx_fifo;
-// evt.event_type = FIFO_EVENT_SERVER_RX;
-// evt.event_id = serial_number++;
-//
-// /* Based on request block (or not) for lack of space */
-// if (PREDICT_TRUE(q->cursize < q->maxsize))
-// unix_shared_memory_queue_add (app->event_queue, (u8 *) &evt,
-// 0 /* do wait for mutex */);
-// else
-// {
-// clib_warning("fifo full");
-// return -1;
-// }
-// }
}
/**
return &tp_vfts[type];
}
+/**
+ * Allocate vpp event queue (once) per worker thread
+ */
+void
+session_vpp_event_queue_allocate (session_manager_main_t * smm,
+ u32 thread_index)
+{
+ api_main_t *am = &api_main;
+ void *oldheap;
+
+ if (smm->vpp_event_queues[thread_index] == 0)
+ {
+ /* Allocate event fifo in the /vpe-api shared-memory segment */
+ oldheap = svm_push_data_heap (am->vlib_rp);
+
+ smm->vpp_event_queues[thread_index] =
+ unix_shared_memory_queue_init (2048 /* nels $$$$ config */ ,
+ sizeof (session_fifo_event_t),
+ 0 /* consumer pid */ ,
+ 0
+ /* (do not) send signal when queue non-empty */
+ );
+
+ svm_pop_heap (oldheap);
+ }
+}
+
static clib_error_t *
session_manager_main_enable (vlib_main_t * vm)
{
return 0;
}
+void
+session_node_enable_disable (u8 is_en)
+{
+ u8 state = is_en ? VLIB_NODE_STATE_POLLING : VLIB_NODE_STATE_DISABLED;
+ /* *INDENT-OFF* */
+ foreach_vlib_main (({
+ vlib_node_set_state (this_vlib_main, session_queue_node.index,
+ state);
+ }));
+ /* *INDENT-ON* */
+}
+
clib_error_t *
vnet_session_enable_disable (vlib_main_t * vm, u8 is_en)
{
if (session_manager_main.is_enabled)
return 0;
- vlib_node_set_state (vm, session_queue_node.index,
- VLIB_NODE_STATE_POLLING);
+ session_node_enable_disable (is_en);
return session_manager_main_enable (vm);
}
else
{
session_manager_main.is_enabled = 0;
- vlib_node_set_state (vm, session_queue_node.index,
- VLIB_NODE_STATE_DISABLED);
+ session_node_enable_disable (is_en);
}
return 0;
#include <vnet/session/transport.h>
#include <vlibmemory/unix_shared_memory_queue.h>
-#include <vlibmemory/api.h>
-#include <vppinfra/sparse_vec.h>
-#include <svm/svm_fifo_segment.h>
#include <vnet/session/session_debug.h>
#include <vnet/session/segment_manager.h>
typedef enum
{
- FIFO_EVENT_SERVER_RX,
- FIFO_EVENT_SERVER_TX,
+ FIFO_EVENT_APP_RX,
+ FIFO_EVENT_APP_TX,
FIFO_EVENT_TIMEOUT,
- FIFO_EVENT_SERVER_EXIT,
+ FIFO_EVENT_DISCONNECT,
FIFO_EVENT_BUILTIN_RX
} fifo_event_type_t;
/* *INDENT-OFF* */
typedef CLIB_PACKED (struct {
- svm_fifo_t * fifo;
+ union
+ {
+ svm_fifo_t * fifo;
+ u64 session_handle;
+ };
u8 event_type;
u16 event_id;
}) session_fifo_event_t;
int stream_session_stop_listen (stream_session_t * s);
void stream_session_disconnect (stream_session_t * s);
void stream_session_cleanup (stream_session_t * s);
-
+void session_send_session_evt_to_thread (u64 session_handle,
+ fifo_event_type_t evt_type,
+ u32 thread_index);
u8 *format_stream_session (u8 * s, va_list * args);
void session_register_transport (u8 type, const transport_proto_vft_t * vft);
memset (mp, 0, sizeof (*mp));
mp->_vl_msg_id = clib_host_to_net_u16 (VL_API_ACCEPT_SESSION);
-
+ mp->context = server->index;
listener = listen_session_get (s->session_type, s->listener_index);
tp_vft = session_get_transport_vft (s->session_type);
tc = tp_vft->get_connection (s->connection_index, s->thread_index);
.redirect_connect_callback = redirect_connect_callback
};
-static int
-api_session_not_valid (u32 session_index, u32 thread_index)
-{
- session_manager_main_t *smm = vnet_get_session_manager_main ();
- stream_session_t *pool;
-
- if (thread_index >= vec_len (smm->sessions))
- return VNET_API_ERROR_INVALID_VALUE;
-
- pool = smm->sessions[thread_index];
-
- if (pool_is_free_index (pool, session_index))
- return VNET_API_ERROR_INVALID_VALUE_2;
-
- return 0;
-}
-
static void
vl_api_session_enable_disable_t_handler (vl_api_session_enable_disable_t * mp)
{
rv = vnet_application_attach (a);
done:
+
/* *INDENT-OFF* */
REPLY_MACRO2 (VL_API_APPLICATION_ATTACH_REPLY, ({
- rmp->retval = rv;
if (!rv)
{
rmp->segment_name_length = 0;
vl_api_accept_session_reply_t_handler (vl_api_accept_session_reply_t * mp)
{
stream_session_t *s;
- int rv;
u32 session_index, thread_index;
- session_index = stream_session_index_from_handle (mp->handle);
- thread_index = stream_session_thread_from_handle (mp->handle);
- if (api_session_not_valid (session_index, thread_index))
- return;
-
- s = stream_session_get (session_index, thread_index);
- rv = mp->retval;
+ vnet_disconnect_args_t _a, *a = &_a;
- if (rv)
+ /* Server isn't interested, kill the session */
+ if (mp->retval)
{
- /* Server isn't interested, kill the session */
- stream_session_disconnect (s);
- return;
+ a->app_index = mp->context;
+ a->handle = mp->handle;
+ vnet_disconnect_session (a);
+ }
+ else
+ {
+ stream_session_parse_handle (mp->handle, &session_index, &thread_index);
+ s = stream_session_get_if_valid (session_index, thread_index);
+ if (!s)
+ {
+ clib_warning ("session doesn't exist");
+ return;
+ }
+ if (s->app_index != mp->context)
+ {
+ clib_warning ("app doesn't own session");
+ return;
+ }
+ /* XXX volatile? */
+ s->session_state = SESSION_STATE_READY;
}
-
- s->session_state = SESSION_STATE_READY;
}
static void
bytes_this_chunk = bytes_this_chunk < s->bytes_to_send
? bytes_this_chunk : s->bytes_to_send;
- rv = svm_fifo_enqueue_nowait (s->server_tx_fifo, 0 /*pid */ ,
- bytes_this_chunk,
+ rv = svm_fifo_enqueue_nowait (s->server_tx_fifo, bytes_this_chunk,
test_data + test_buf_offset);
/* If we managed to enqueue data... */
{
/* Fabricate TX event, send to vpp */
evt.fifo = s->server_tx_fifo;
- evt.event_type = FIFO_EVENT_SERVER_TX;
+ evt.event_type = FIFO_EVENT_APP_TX;
evt.event_id = serial_number++;
unix_shared_memory_queue_add (tm->vpp_event_queue, (u8 *) & evt,
/* Allow enqueuing of new event */
// svm_fifo_unset_event (rx_fifo);
- n_read = svm_fifo_dequeue_nowait (rx_fifo, 0, vec_len (tm->rx_buf),
+ n_read = svm_fifo_dequeue_nowait (rx_fifo, vec_len (tm->rx_buf),
tm->rx_buf);
if (n_read > 0)
{
options[SESSION_OPTIONS_ACCEPT_COOKIE] = 0x12345678;
options[SESSION_OPTIONS_SEGMENT_SIZE] = (2 << 30); /*$$$$ config / arg */
+ options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_BUILTIN_APP;
+
a->options = options;
return vnet_application_attach (a);
vec_validate (bsm->rx_buf, max_transfer - 1);
_vec_len (bsm->rx_buf) = max_transfer;
- actual_transfer = svm_fifo_dequeue_nowait (rx_fifo, 0, max_transfer,
+ actual_transfer = svm_fifo_dequeue_nowait (rx_fifo, max_transfer,
bsm->rx_buf);
ASSERT (actual_transfer == max_transfer);
* Echo back
*/
- n_written =
- svm_fifo_enqueue_nowait (tx_fifo, 0, actual_transfer, bsm->rx_buf);
+ n_written = svm_fifo_enqueue_nowait (tx_fifo, actual_transfer, bsm->rx_buf);
if (n_written != max_transfer)
clib_warning ("short trout!");
{
/* Fabricate TX event, send to vpp */
evt.fifo = tx_fifo;
- evt.event_type = FIFO_EVENT_SERVER_TX;
+ evt.event_type = FIFO_EVENT_APP_TX;
evt.event_id = serial_number++;
unix_shared_memory_queue_add (bsm->vpp_queue[s->thread_index],
a->options[SESSION_OPTIONS_SEGMENT_SIZE] = 128 << 20;
a->options[SESSION_OPTIONS_RX_FIFO_SIZE] = 1 << 16;
a->options[SESSION_OPTIONS_TX_FIFO_SIZE] = 1 << 16;
+ a->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_BUILTIN_APP;
a->segment_name = segment_name;
a->segment_name_length = ARRAY_LEN (segment_name);
format_tcp_connection (u8 * s, va_list * args)
{
tcp_connection_t *tc = va_arg (*args, tcp_connection_t *);
-
+ if (!tc)
+ return s;
if (tc->c_is_ip4)
{
s = format (s, "[#%d][%s] %U:%d->%U:%d", tc->c_thread_index, "T",
tcp_initialize_timer_wheels (tcp_main_t * tm)
{
tw_timer_wheel_16t_2w_512sl_t *tw;
- vec_foreach (tw, tm->timer_wheels)
- {
+ /* *INDENT-OFF* */
+ foreach_vlib_main (({
+ tw = &tm->timer_wheels[ii];
tw_timer_wheel_init_16t_2w_512sl (tw, tcp_expired_timers_dispatch,
100e-3 /* timer period 100ms */ , ~0);
- tw->last_run_time = vlib_time_now (tm->vlib_main);
- }
+ tw->last_run_time = vlib_time_now (this_vlib_main);
+ }));
+ /* *INDENT-ON* */
}
clib_error_t *
clib_warning ("ooo: offset %d len %d", offset, data_len);
- rv = svm_fifo_enqueue_with_offset (s0->server_rx_fifo, s0->pid, offset,
- data_len, vlib_buffer_get_current (b));
+ rv = svm_fifo_enqueue_with_offset (s0->server_rx_fifo, offset, data_len,
+ vlib_buffer_get_current (b));
/* Nothing written */
if (rv)
{
t0 = vlib_add_trace (vm, node, b0, sizeof (*t0));
clib_memcpy (&t0->tcp_header, tcp0, sizeof (t0->tcp_header));
- clib_memcpy (&t0->tcp_connection, tc0,
- sizeof (t0->tcp_connection));
+ if (tc0)
+ clib_memcpy (&t0->tcp_connection, tc0, sizeof (*tc0));
}
vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
vlib_buffer_t *b0;
tcp_tx_trace_t *t0;
tcp_header_t *th0;
- tcp_connection_t *tc0;
u32 error0 = TCP_ERROR_RST_SENT, next0 = TCP_RESET_NEXT_IP_LOOKUP;
bi0 = from[0];
th0 = ip4_next_header ((ip4_header_t *) th0);
else
th0 = ip6_next_header ((ip6_header_t *) th0);
- tc0 =
- tcp_connection_get (vnet_buffer (b0)->tcp.connection_index,
- my_thread_index);
t0 = vlib_add_trace (vm, node, b0, sizeof (*t0));
clib_memcpy (&t0->tcp_header, th0, sizeof (t0->tcp_header));
- clib_memcpy (&t0->tcp_connection, tc0,
- sizeof (t0->tcp_connection));
}
vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
/*
* Enqueue an initial (un-dequeued) chunk
*/
- rv = svm_fifo_enqueue_nowait (f, 0 /* pid */ ,
- sizeof (u32), (u8 *) test_data);
+ rv = svm_fifo_enqueue_nowait (f, sizeof (u32), (u8 *) test_data);
TCP_TEST ((rv == sizeof (u32)), "enqueued %d", rv);
TCP_TEST ((f->tail == 4), "fifo tail %u", f->tail);
{
offset = (2 * i + 1) * sizeof (u32);
data = (u8 *) (test_data + (2 * i + 1));
- rv = svm_fifo_enqueue_with_offset (f, 0, offset, sizeof (u32), data);
+ rv = svm_fifo_enqueue_with_offset (f, offset, sizeof (u32), data);
if (verbose)
vlib_cli_output (vm, "add [%d] [%d, %d]", 2 * i + 1, offset,
offset + sizeof (u32));
{
offset = (2 * i + 0) * sizeof (u32);
data = (u8 *) (test_data + (2 * i + 0));
- rv = svm_fifo_enqueue_with_offset (f, 0, offset, sizeof (u32), data);
+ rv = svm_fifo_enqueue_with_offset (f, offset, sizeof (u32), data);
if (verbose)
vlib_cli_output (vm, "add [%d] [%d, %d]", 2 * i, offset,
offset + sizeof (u32));
/*
* Enqueue the missing u32
*/
- rv = svm_fifo_enqueue_nowait (f, 0 /* pid */ , sizeof (u32),
- (u8 *) (test_data + 2));
+ rv = svm_fifo_enqueue_nowait (f, sizeof (u32), (u8 *) (test_data + 2));
if (verbose)
vlib_cli_output (vm, "fifo after missing link: %U", format_svm_fifo, f,
1);
*/
for (i = 0; i < 7; i++)
{
- rv = svm_fifo_dequeue_nowait (f, 0 /* pid */ , sizeof (u32),
- (u8 *) & data_word);
+ rv = svm_fifo_dequeue_nowait (f, sizeof (u32), (u8 *) & data_word);
if (rv != sizeof (u32))
{
clib_warning ("bytes dequeues %u", rv);
{
offset = (2 * i + 1) * sizeof (u32);
data = (u8 *) (test_data + (2 * i + 1));
- rv = svm_fifo_enqueue_with_offset (f, 0, offset, sizeof (u32), data);
+ rv = svm_fifo_enqueue_with_offset (f, offset, sizeof (u32), data);
if (verbose)
vlib_cli_output (vm, "add [%d] [%d, %d]", 2 * i + 1, offset,
offset + sizeof (u32));
}
}
- rv = svm_fifo_enqueue_with_offset (f, 0, 8, 21, data);
+ rv = svm_fifo_enqueue_with_offset (f, 8, 21, data);
TCP_TEST ((rv == 0), "ooo enqueued %u", rv);
TCP_TEST ((svm_fifo_number_ooo_segments (f) == 1),
"number of ooo segments %u", svm_fifo_number_ooo_segments (f));
vec_validate (data_buf, vec_len (data));
- svm_fifo_peek (f, 0, 0, vec_len (data), data_buf);
+ svm_fifo_peek (f, 0, vec_len (data), data_buf);
if (compare_data (data_buf, data, 8, vec_len (data), &j))
{
TCP_TEST (0, "[%d] peeked %u expected %u", j, data_buf[j], data[j]);
{
offset = (2 * i + 1) * sizeof (u32);
data = (u8 *) (test_data + (2 * i + 1));
- rv = svm_fifo_enqueue_with_offset (f, 0, offset, sizeof (u32), data);
+ rv = svm_fifo_enqueue_with_offset (f, offset, sizeof (u32), data);
if (verbose)
vlib_cli_output (vm, "add [%d] [%d, %d]", 2 * i + 1, offset,
offset + sizeof (u32));
}
}
- rv = svm_fifo_enqueue_nowait (f, 0, 29, data);
+ rv = svm_fifo_enqueue_nowait (f, 29, data);
TCP_TEST ((rv == 32), "ooo enqueued %u", rv);
TCP_TEST ((svm_fifo_number_ooo_segments (f) == 0),
"number of ooo segments %u", svm_fifo_number_ooo_segments (f));
vec_validate (data_buf, vec_len (data));
- svm_fifo_peek (f, 0, 0, vec_len (data), data_buf);
+ svm_fifo_peek (f, 0, vec_len (data), data_buf);
if (compare_data (data_buf, data, 0, vec_len (data), &j))
{
TCP_TEST (0, "[%d] peeked %u expected %u", j, data_buf[j], data[j]);
{
tp = vp + i;
data64 = tp->offset;
- rv = svm_fifo_enqueue_with_offset (f, 0, tp->offset, tp->len,
+ rv = svm_fifo_enqueue_with_offset (f, tp->offset, tp->len,
(u8 *) & data64);
}
"first ooo seg length %u", ooo_seg->length);
data64 = 0;
- rv = svm_fifo_enqueue_nowait (f, 0, sizeof (u32), (u8 *) & data64);
+ rv = svm_fifo_enqueue_nowait (f, sizeof (u32), (u8 *) & data64);
TCP_TEST ((rv == 3000), "bytes to be enqueued %u", rv);
svm_fifo_free (f);
{
tp = &test_data[i];
data64 = tp->offset;
- rv = svm_fifo_enqueue_with_offset (f, 0, tp->offset, tp->len,
+ rv = svm_fifo_enqueue_with_offset (f, tp->offset, tp->len,
(u8 *) & data64);
if (rv)
{
"first ooo seg length %u", ooo_seg->length);
data64 = 0;
- rv = svm_fifo_enqueue_nowait (f, 0, sizeof (u32), (u8 *) & data64);
+ rv = svm_fifo_enqueue_nowait (f, sizeof (u32), (u8 *) & data64);
TCP_TEST ((rv == 3000), "bytes to be enqueued %u", rv);
for (i = 0; i < vec_len (generate); i++)
{
tp = generate + i;
- rv = svm_fifo_enqueue_with_offset (f, 0, fifo_initial_offset
+ rv = svm_fifo_enqueue_with_offset (f, fifo_initial_offset
+ tp->offset, tp->len,
(u8 *) data_pattern + tp->offset);
}
u32 bytes_to_enq = 1;
if (in_seq_all)
bytes_to_enq = total_size;
- rv = svm_fifo_enqueue_nowait (f, 0, bytes_to_enq, data_pattern + 0);
+ rv = svm_fifo_enqueue_nowait (f, bytes_to_enq, data_pattern + 0);
if (verbose)
vlib_cli_output (vm, "in-order enqueue returned %d", rv);
* Test if peeked data is the same as original data
*/
vec_validate (data_buf, vec_len (data_pattern));
- svm_fifo_peek (f, 0, 0, vec_len (data_pattern), data_buf);
+ svm_fifo_peek (f, 0, vec_len (data_pattern), data_buf);
if (compare_data (data_buf, data_pattern, 0, vec_len (data_pattern), &j))
{
TCP_TEST (0, "[%d] peeked %u expected %u", j, data_buf[j],
*/
if (drop)
{
- svm_fifo_dequeue_drop (f, 0, vec_len (data_pattern));
+ svm_fifo_dequeue_drop (f, vec_len (data_pattern));
}
else
{
- svm_fifo_dequeue_nowait (f, 0, vec_len (data_pattern), data_buf);
+ svm_fifo_dequeue_nowait (f, vec_len (data_pattern), data_buf);
if (compare_data
(data_buf, data_pattern, 0, vec_len (data_pattern), &j))
{
vec_validate (my_copy_buffer, this_transfer - 1);
_vec_len (my_copy_buffer) = this_transfer;
- actual_transfer = svm_fifo_dequeue_nowait (rx_fifo, 0, this_transfer,
+ actual_transfer = svm_fifo_dequeue_nowait (rx_fifo, this_transfer,
my_copy_buffer);
ASSERT (actual_transfer == this_transfer);
- actual_transfer = svm_fifo_enqueue_nowait (tx_fifo, 0, this_transfer,
+ actual_transfer = svm_fifo_enqueue_nowait (tx_fifo, this_transfer,
my_copy_buffer);
ASSERT (actual_transfer == this_transfer);
{
/* Fabricate TX event, send to ourselves */
evt.fifo = tx_fifo;
- evt.event_type = FIFO_EVENT_SERVER_TX;
+ evt.event_type = FIFO_EVENT_APP_TX;
evt.event_id = 0;
q = session_manager_get_vpp_event_queue (s->thread_index);
unix_shared_memory_queue_add (q, (u8 *) & evt,
options[SESSION_OPTIONS_ACCEPT_COOKIE] = 0x12345678;
options[SESSION_OPTIONS_SEGMENT_SIZE] = (2 << 30); /*$$$$ config / arg */
+ options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_BUILTIN_APP;
+
a->options = options;
return vnet_application_attach (a);
goto trace0;
}
- svm_fifo_enqueue_nowait (f0, 0 /* pid */ ,
- udp_len0 - sizeof (*udp0),
+ svm_fifo_enqueue_nowait (f0, udp_len0 - sizeof (*udp0),
(u8 *) (udp0 + 1));
b0->error = node->errors[SESSION_ERROR_ENQUEUED];
{
/* Fabricate event */
evt.fifo = s0->server_rx_fifo;
- evt.event_type = FIFO_EVENT_SERVER_RX;
+ evt.event_type = FIFO_EVENT_APP_RX;
evt.event_id = serial_number++;
/* Add event to server's event queue */
Code Review / vpp.git / commitdiff