#undef vl_typedefs
/* instantiate all the print functions we know about */
-#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
#define vl_printfun
#include <vlibmemory/vl_memory_api_h.h>
#undef vl_printfun
#include <vlibmemory/vl_memory_api_h.h>
#undef vl_endianfun
-static inline void *
-vl_api_memclnt_create_t_print (vl_api_memclnt_create_t * a, void *handle)
-{
- vl_print (handle, "vl_api_memclnt_create_t:\n");
- vl_print (handle, "name: %s\n", a->name);
- vl_print (handle, "input_queue: 0x%wx\n", a->input_queue);
- vl_print (handle, "context: %u\n", (unsigned) a->context);
- vl_print (handle, "ctx_quota: %ld\n", (long) a->ctx_quota);
- return handle;
-}
-
-static inline void *
-vl_api_memclnt_delete_t_print (vl_api_memclnt_delete_t * a, void *handle)
-{
- vl_print (handle, "vl_api_memclnt_delete_t:\n");
- vl_print (handle, "index: %u\n", (unsigned) a->index);
- vl_print (handle, "handle: 0x%wx\n", a->handle);
- return handle;
-}
-
volatile int **vl_api_queue_cursizes;
static void
{
int i;
api_main_t *am = vlibapi_get_main ();
+ int have_pending_rpcs;
if (PREDICT_FALSE (vec_len (vl_api_queue_cursizes) !=
1 + vec_len (am->vlib_private_rps)))
break;
}
}
- if (vec_len (vm->pending_rpc_requests))
+
+ clib_spinlock_lock_if_init (&vm->pending_rpc_lock);
+ have_pending_rpcs = vec_len (vm->pending_rpc_requests) > 0;
+ clib_spinlock_unlock_if_init (&vm->pending_rpc_lock);
+
+ if (have_pending_rpcs)
{
vm->queue_signal_pending = 1;
vm->api_queue_nonempty = 1;
{
vl_api_registration_t **regpp;
vl_api_registration_t *regp;
- svm_region_t *svm;
void *oldheap;
api_main_t *am = vlibapi_get_main ();
ASSERT (vlib_get_thread_index () == 0);
pool_get (am->vl_clients, regpp);
- svm = am->vlib_rp;
- pthread_mutex_lock (&svm->mutex);
- oldheap = svm_push_data_heap (svm);
+ oldheap = vl_msg_push_heap ();
*regpp = clib_mem_alloc (sizeof (vl_api_registration_t));
regp = *regpp;
clib_memset (regp, 0, sizeof (*regp));
regp->registration_type = REGISTRATION_TYPE_SHMEM;
regp->vl_api_registration_pool_index = regpp - am->vl_clients;
- regp->vlib_rp = svm;
+ regp->vlib_rp = am->vlib_rp;
regp->shmem_hdr = am->shmem_hdr;
regp->vl_input_queue = q;
regp->name = format (0, "%s%c", name, 0);
- pthread_mutex_unlock (&svm->mutex);
- svm_pop_heap (oldheap);
+ vl_msg_pop_heap (oldheap);
return vl_msg_api_handle_from_index_and_epoch
(regp->vl_api_registration_pool_index,
am->shmem_hdr->application_restarts);
vl_api_registration_t **regpp;
vl_api_registration_t *regp;
vl_api_memclnt_create_reply_t *rp;
- svm_region_t *svm;
svm_queue_t *q;
int rv = 0;
void *oldheap;
pool_get (am->vl_clients, regpp);
- svm = am->vlib_rp;
-
- pthread_mutex_lock (&svm->mutex);
- oldheap = svm_push_data_heap (svm);
+ oldheap = vl_msg_push_heap ();
*regpp = clib_mem_alloc (sizeof (vl_api_registration_t));
regp = *regpp;
clib_memset (regp, 0, sizeof (*regp));
regp->registration_type = REGISTRATION_TYPE_SHMEM;
regp->vl_api_registration_pool_index = regpp - am->vl_clients;
- regp->vlib_rp = svm;
+ regp->vlib_rp = am->vlib_rp;
regp->shmem_hdr = am->shmem_hdr;
regp->clib_file_index = am->shmem_hdr->clib_file_index;
regp->name = format (0, "%s", mp->name);
vec_add1 (regp->name, 0);
+ regp->keepalive = true;
if (am->serialized_message_table_in_shmem == 0)
am->serialized_message_table_in_shmem =
else
msg_table = am->serialized_message_table_in_shmem;
- pthread_mutex_unlock (&svm->mutex);
- svm_pop_heap (oldheap);
+ vl_msg_pop_heap (oldheap);
rp = vl_msg_api_alloc (sizeof (*rp));
rp->_vl_msg_id = ntohs (VL_API_MEMCLNT_CREATE_REPLY);
vl_msg_api_send_shmem (q, (u8 *) & rp);
}
-int
+void
+vl_api_memclnt_create_v2_t_handler (vl_api_memclnt_create_v2_t *mp)
+{
+ vl_api_registration_t **regpp;
+ vl_api_registration_t *regp;
+ vl_api_memclnt_create_v2_reply_t *rp;
+ svm_queue_t *q;
+ int rv = 0;
+ void *oldheap;
+ api_main_t *am = vlibapi_get_main ();
+ u8 *msg_table;
+
+ /*
+ * This is tortured. Maintain a vlib-address-space private
+ * pool of client registrations. We use the shared-memory virtual
+ * address of client structure as a handle, to allow direct
+ * manipulation of context quota vbls from the client library.
+ *
+ * This scheme causes trouble w/ API message trace replay, since
+ * some random VA from clib_mem_alloc() certainly won't
+ * occur in the Linux sim. The (very) few places
+ * that care need to use the pool index.
+ *
+ * Putting the registration object(s) into a pool in shared memory and
+ * using the pool index as a handle seems like a great idea.
+ * Unfortunately, each and every reference to that pool would need
+ * to be protected by a mutex:
+ *
+ * Client VLIB
+ * ------ ----
+ * convert pool index to
+ * pointer.
+ * <deschedule>
+ * expand pool
+ * <deschedule>
+ * kaboom!
+ */
+
+ pool_get (am->vl_clients, regpp);
+
+ oldheap = vl_msg_push_heap ();
+ *regpp = clib_mem_alloc (sizeof (vl_api_registration_t));
+
+ regp = *regpp;
+ clib_memset (regp, 0, sizeof (*regp));
+ regp->registration_type = REGISTRATION_TYPE_SHMEM;
+ regp->vl_api_registration_pool_index = regpp - am->vl_clients;
+ regp->vlib_rp = am->vlib_rp;
+ regp->shmem_hdr = am->shmem_hdr;
+ regp->clib_file_index = am->shmem_hdr->clib_file_index;
+
+ q = regp->vl_input_queue = (svm_queue_t *) (uword) mp->input_queue;
+ VL_MSG_API_SVM_QUEUE_UNPOISON (q);
+
+ regp->name = format (0, "%s", mp->name);
+ vec_add1 (regp->name, 0);
+ regp->keepalive = mp->keepalive;
+
+ if (am->serialized_message_table_in_shmem == 0)
+ am->serialized_message_table_in_shmem =
+ vl_api_serialize_message_table (am, 0);
+
+ if (am->vlib_rp != am->vlib_primary_rp)
+ msg_table = vl_api_serialize_message_table (am, 0);
+ else
+ msg_table = am->serialized_message_table_in_shmem;
+
+ vl_msg_pop_heap (oldheap);
+
+ rp = vl_msg_api_alloc (sizeof (*rp));
+ rp->_vl_msg_id = ntohs (VL_API_MEMCLNT_CREATE_V2_REPLY);
+ rp->handle = (uword) regp;
+ rp->index = vl_msg_api_handle_from_index_and_epoch (
+ regp->vl_api_registration_pool_index, am->shmem_hdr->application_restarts);
+ rp->context = mp->context;
+ rp->response = ntohl (rv);
+ rp->message_table = pointer_to_uword (msg_table);
+
+ vl_msg_api_send_shmem (q, (u8 *) &rp);
+}
+
+void
vl_api_call_reaper_functions (u32 client_index)
{
clib_error_t *error = 0;
clib_error_report (error);
i = i->next_init_function;
}
- return 0;
}
/*
vl_api_registration_t **regpp;
vl_api_registration_t *regp;
vl_api_memclnt_delete_reply_t *rp;
- svm_region_t *svm;
void *oldheap;
api_main_t *am = vlibapi_get_main ();
u32 handle, client_index, epoch;
handle = mp->index;
- if (vl_api_call_reaper_functions (handle))
- return;
+ vl_api_call_reaper_functions (handle);
epoch = vl_msg_api_handle_get_epoch (handle);
client_index = vl_msg_api_handle_get_index (handle);
{
int i;
regp = *regpp;
- svm = am->vlib_rp;
int private_registration = 0;
/* Send reply unless client asked us to do the cleanup */
for (i = 0; i < vec_len (am->vlib_private_rps); i++)
{
/* Is this a pairwise / private API segment? */
- if (am->vlib_private_rps[i] == svm)
+ if (am->vlib_private_rps[i] == am->vlib_rp)
{
/* Note: account for the memfd header page */
- uword virtual_base = svm->virtual_base - MMAP_PAGESIZE;
- uword virtual_size = svm->virtual_size + MMAP_PAGESIZE;
+ uword virtual_base = am->vlib_rp->virtual_base - MMAP_PAGESIZE;
+ uword virtual_size = am->vlib_rp->virtual_size + MMAP_PAGESIZE;
/*
* Kill the registration pool element before we make
{
pool_put_index (am->vl_clients,
regp->vl_api_registration_pool_index);
- pthread_mutex_lock (&svm->mutex);
- oldheap = svm_push_data_heap (svm);
+ oldheap = vl_msg_push_heap ();
if (mp->do_cleanup)
svm_queue_free (regp->vl_input_queue);
vec_free (regp->name);
/* Poison the old registration */
clib_memset (regp, 0xF1, sizeof (*regp));
clib_mem_free (regp);
- pthread_mutex_unlock (&svm->mutex);
- svm_pop_heap (oldheap);
+ vl_msg_pop_heap (oldheap);
/*
* These messages must be freed manually, since they're set up
* as "bounce" messages. In the private_registration == 1 case,
* don't trace memclnt_keepalive[_reply] msgs
*/
-#define foreach_vlib_api_msg \
-_(MEMCLNT_CREATE, memclnt_create, 1) \
-_(MEMCLNT_DELETE, memclnt_delete, 1) \
-_(MEMCLNT_KEEPALIVE, memclnt_keepalive, 0) \
-_(MEMCLNT_KEEPALIVE_REPLY, memclnt_keepalive_reply, 0)
+#define foreach_vlib_api_msg \
+ _ (MEMCLNT_CREATE, memclnt_create, 0) \
+ _ (MEMCLNT_CREATE_V2, memclnt_create_v2, 0) \
+ _ (MEMCLNT_DELETE, memclnt_delete, 0) \
+ _ (MEMCLNT_KEEPALIVE, memclnt_keepalive, 0) \
+ _ (MEMCLNT_KEEPALIVE_REPLY, memclnt_keepalive_reply, 0)
/*
* memory_api_init
if ((rv = vl_map_shmem (region_name, 1 /* is_vlib */ )) < 0)
return rv;
-#define _(N,n,t) do { \
- c->id = VL_API_##N; \
- c->name = #n; \
- c->handler = vl_api_##n##_t_handler; \
- c->cleanup = vl_noop_handler; \
- c->endian = vl_api_##n##_t_endian; \
- c->print = vl_api_##n##_t_print; \
- c->size = sizeof(vl_api_##n##_t); \
- c->traced = t; /* trace, so these msgs print */ \
- c->replay = 0; /* don't replay client create/delete msgs */ \
- c->message_bounce = 0; /* don't bounce this message */ \
- vl_msg_api_config(c);} while (0);
+#define _(N, n, t) \
+ do \
+ { \
+ c->id = VL_API_##N; \
+ c->name = #n; \
+ c->handler = vl_api_##n##_t_handler; \
+ c->endian = vl_api_##n##_t_endian; \
+ c->format_fn = vl_api_##n##_t_format; \
+ c->size = sizeof (vl_api_##n##_t); \
+ c->traced = t; /* trace, so these msgs print */ \
+ c->replay = 0; /* don't replay client create/delete msgs */ \
+ c->message_bounce = 0; /* don't bounce this message */ \
+ vl_msg_api_config (c); \
+ } \
+ while (0);
foreach_vlib_api_msg;
#undef _
+#define vl_msg_name_crc_list
+#include <vlibmemory/memclnt.api.h>
+#undef vl_msg_name_crc_list
+
+#define _(id, n, crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
+ foreach_vl_msg_name_crc_memclnt;
+#undef _
+
/*
* special-case freeing of memclnt_delete messages, so we can
* simply munmap pairwise / private API segments...
*/
- am->message_bounce[VL_API_MEMCLNT_DELETE] = 1;
- am->is_mp_safe[VL_API_MEMCLNT_KEEPALIVE_REPLY] = 1;
- am->is_mp_safe[VL_API_MEMCLNT_KEEPALIVE] = 1;
+ am->msg_data[VL_API_MEMCLNT_DELETE].bounce = 1;
+ vl_api_set_msg_thread_safe (am, VL_API_MEMCLNT_KEEPALIVE_REPLY, 1);
+ vl_api_set_msg_thread_safe (am, VL_API_MEMCLNT_KEEPALIVE, 1);
vlib_set_queue_signal_callback (vm, memclnt_queue_callback);
vec_reset_length (dead_indices);
vec_reset_length (confused_indices);
- /* *INDENT-OFF* */
- pool_foreach (regpp, am->vl_clients, ({
+ pool_foreach (regpp, am->vl_clients) {
+ if (!(*regpp)->keepalive)
+ continue;
vl_mem_send_client_keepalive_w_reg (am, now, regpp, &dead_indices,
- &confused_indices);
- }));
- /* *INDENT-ON* */
+ &confused_indices);
+ }
/* This should "never happen," but if it does, fix it... */
if (PREDICT_FALSE (vec_len (confused_indices) > 0))
if (PREDICT_FALSE (vec_len (dead_indices) > 0))
{
int i;
- svm_region_t *svm;
void *oldheap;
/* Allow the application to clean up its registrations */
handle = vl_msg_api_handle_from_index_and_epoch
(dead_indices[i], shm->application_restarts);
- (void) vl_api_call_reaper_functions (handle);
+ vl_api_call_reaper_functions (handle);
}
}
- svm = am->vlib_rp;
- pthread_mutex_lock (&svm->mutex);
- oldheap = svm_push_data_heap (svm);
+ oldheap = vl_msg_push_heap ();
for (i = 0; i < vec_len (dead_indices); i++)
{
if (regpp)
{
/* Is this a pairwise SVM segment? */
- if ((*regpp)->vlib_rp != svm)
+ if ((*regpp)->vlib_rp != am->vlib_rp)
{
int i;
svm_region_t *dead_rp = (*regpp)->vlib_rp;
}
svm_pop_heap (oldheap);
clib_warning ("private rp %llx AWOL", dead_rp);
- oldheap = svm_push_data_heap (svm);
+ oldheap = svm_push_data_heap (am->vlib_rp);
found:
/* Kill it, accounting for the memfd header page */
clib_unix_warning ("munmap");
/* Reset the queue-length-address cache */
vec_reset_length (vl_api_queue_cursizes);
- oldheap = svm_push_data_heap (svm);
+ oldheap = svm_push_data_heap (am->vlib_rp);
}
else
{
svm_pop_heap (oldheap);
clib_warning ("Duplicate free, client index %d",
regpp - am->vl_clients);
- oldheap = svm_push_data_heap (svm);
+ oldheap = svm_push_data_heap (am->vlib_rp);
}
}
svm_client_scan_this_region_nolock (am->vlib_rp);
- pthread_mutex_unlock (&svm->mutex);
- svm_pop_heap (oldheap);
+ vl_msg_pop_heap (oldheap);
for (i = 0; i < vec_len (dead_indices); i++)
pool_put_index (am->vl_clients, dead_indices[i]);
}
}
+void (*vl_mem_api_fuzz_hook) (u16, void *);
+
+/* This is only to be called from a vlib/vnet app */
+static void
+vl_mem_api_handler_with_vm_node (api_main_t *am, svm_region_t *vlib_rp,
+ void *the_msg, vlib_main_t *vm,
+ vlib_node_runtime_t *node, u8 is_private)
+{
+ u16 id = clib_net_to_host_u16 (*((u16 *) the_msg));
+ vl_api_msg_data_t *m = vl_api_get_msg_data (am, id);
+ u8 *(*handler) (void *, void *, void *);
+ svm_region_t *old_vlib_rp;
+ void *save_shmem_hdr;
+ int is_mp_safe = 1;
+
+ if (PREDICT_FALSE (am->elog_trace_api_messages))
+ {
+ ELOG_TYPE_DECLARE (e) = {
+ .format = "api-msg: %s",
+ .format_args = "T4",
+ };
+ struct
+ {
+ u32 c;
+ } * ed;
+ ed = ELOG_DATA (am->elog_main, e);
+ if (m && m->name)
+ ed->c = elog_string (am->elog_main, (char *) m->name);
+ else
+ ed->c = elog_string (am->elog_main, "BOGUS");
+ }
+
+ if (m && m->handler)
+ {
+ handler = (void *) m->handler;
+
+ if (PREDICT_FALSE (am->rx_trace && am->rx_trace->enabled))
+ vl_msg_api_trace (am, am->rx_trace, the_msg);
+
+ if (PREDICT_FALSE (am->msg_print_flag))
+ {
+ fformat (stdout, "[%d]: %s\n", id, m->name);
+ fformat (stdout, "%U", format_vl_api_msg_text, am, id, the_msg);
+ }
+ is_mp_safe = am->msg_data[id].is_mp_safe;
+
+ if (!is_mp_safe)
+ {
+ vl_msg_api_barrier_trace_context (am->msg_data[id].name);
+ vl_msg_api_barrier_sync ();
+ }
+ if (is_private)
+ {
+ old_vlib_rp = am->vlib_rp;
+ save_shmem_hdr = am->shmem_hdr;
+ am->vlib_rp = vlib_rp;
+ am->shmem_hdr = (void *) vlib_rp->user_ctx;
+ }
+
+ if (PREDICT_FALSE (vl_mem_api_fuzz_hook != 0))
+ (*vl_mem_api_fuzz_hook) (id, the_msg);
+
+ if (m->is_autoendian)
+ {
+ void (*endian_fp) (void *);
+ endian_fp = am->msg_data[id].endian_handler;
+ (*endian_fp) (the_msg);
+ }
+ if (PREDICT_FALSE (vec_len (am->perf_counter_cbs) != 0))
+ clib_call_callbacks (am->perf_counter_cbs, am, id, 0 /* before */);
+
+ (*handler) (the_msg, vm, node);
+
+ if (PREDICT_FALSE (vec_len (am->perf_counter_cbs) != 0))
+ clib_call_callbacks (am->perf_counter_cbs, am, id, 1 /* after */);
+ if (is_private)
+ {
+ am->vlib_rp = old_vlib_rp;
+ am->shmem_hdr = save_shmem_hdr;
+ }
+ if (!is_mp_safe)
+ vl_msg_api_barrier_release ();
+ }
+ else
+ {
+ clib_warning ("no handler for msg id %d", id);
+ }
+
+ /*
+ * Special-case, so we can e.g. bounce messages off the vnet
+ * main thread without copying them...
+ */
+ if (!m || !m->bounce)
+ {
+ if (is_private)
+ {
+ old_vlib_rp = am->vlib_rp;
+ save_shmem_hdr = am->shmem_hdr;
+ am->vlib_rp = vlib_rp;
+ am->shmem_hdr = (void *) vlib_rp->user_ctx;
+ }
+ vl_msg_api_free (the_msg);
+ if (is_private)
+ {
+ am->vlib_rp = old_vlib_rp;
+ am->shmem_hdr = save_shmem_hdr;
+ }
+ }
+
+ if (PREDICT_FALSE (am->elog_trace_api_messages))
+ {
+ ELOG_TYPE_DECLARE (e) = { .format = "api-msg-done(%s): %s",
+ .format_args = "t4T4",
+ .n_enum_strings = 2,
+ .enum_strings = {
+ "barrier",
+ "mp-safe",
+ } };
+
+ struct
+ {
+ u32 barrier;
+ u32 c;
+ } * ed;
+ ed = ELOG_DATA (am->elog_main, e);
+ if (m && m->name)
+ ed->c = elog_string (am->elog_main, (char *) m->name);
+ else
+ ed->c = elog_string (am->elog_main, "BOGUS");
+ ed->barrier = is_mp_safe;
+ }
+}
+
static inline int
void_mem_api_handle_msg_i (api_main_t * am, svm_region_t * vlib_rp,
vlib_main_t * vm, vlib_node_runtime_t * node,
if (!svm_queue_sub2 (q, (u8 *) & mp))
{
VL_MSG_API_UNPOISON ((void *) mp);
- vl_msg_api_handler_with_vm_node (am, vlib_rp, (void *) mp, vm, node,
+ vl_mem_api_handler_with_vm_node (am, vlib_rp, (void *) mp, vm, node,
is_private);
return 0;
}
for (i = 0; i < vec_len (vm->processing_rpc_requests); i++)
{
mp = vm->processing_rpc_requests[i];
- vl_msg_api_handler_with_vm_node (am, am->vlib_rp, (void *) mp, vm,
- node, 0 /* is_private */ );
+ vl_mem_api_handler_with_vm_node (am, am->vlib_rp, (void *) mp, vm,
+ node, 0 /* is_private */);
}
vl_msg_api_barrier_release ();
}
u32 reg_index)
{
api_main_t *am = vlibapi_get_main ();
-
return void_mem_api_handle_msg_i (am, am->vlib_private_rps[reg_index], vm,
node, 1 /* is_private */ );
}
vl_api_registration_t *regp = 0;
/* For horizontal scaling, add a hash table... */
- /* *INDENT-OFF* */
- pool_foreach (regpp, am->vl_clients,
- ({
+ pool_foreach (regpp, am->vl_clients)
+ {
regp = *regpp;
if (regp && regp->vlib_rp == vlib_rp)
{
vlib_cli_output (vm, "%s segment rings:", regp->name);
goto found;
}
- }));
+ }
vlib_cli_output (vm, "regp %llx not found?", regp);
continue;
- /* *INDENT-ON* */
found:
vlib_cli_output (vm, "%U", format_api_message_rings, am,
0 /* print header */ , 0 /* notused */ );
/*?
* Display binary api message allocation ring statistics
?*/
-/* *INDENT-OFF* */
VLIB_CLI_COMMAND (cli_show_api_ring_command, static) =
{
.path = "show api ring-stats",
.short_help = "Message ring statistics",
.function = vl_api_ring_command,
};
-/* *INDENT-ON* */
clib_error_t *
vlibmemory_init (vlib_main_t * vm)
Code Review / vpp.git / blobdiff