X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvlib%2Fnode_funcs.h;h=33bdc795816a7e534404d634b14fcf0fd1766585;hb=698eeb126d01427313949241b961c27347db8c72;hp=bb302f7abd9f2fac2c117cd545f604c7dfcf0226;hpb=1ddbc0138b64486b8e51e5e12fcad21fba8b8b68;p=vpp.git diff --git a/src/vlib/node_funcs.h b/src/vlib/node_funcs.h index bb302f7abd9..33bdc795816 100644 --- a/src/vlib/node_funcs.h +++ b/src/vlib/node_funcs.h @@ -48,6 +48,32 @@ #include #include +#ifdef CLIB_SANITIZE_ADDR +#include +#endif + +static_always_inline void +vlib_process_start_switch_stack (vlib_main_t * vm, vlib_process_t * p) +{ +#ifdef CLIB_SANITIZE_ADDR + void *stack = p ? (void *) p->stack : vlib_thread_stacks[vm->thread_index]; + u32 stack_bytes = p ? p->log2_n_stack_bytes : VLIB_THREAD_STACK_SIZE; + __sanitizer_start_switch_fiber (&vm->asan_stack_save, stack, stack_bytes); +#endif +} + +static_always_inline void +vlib_process_finish_switch_stack (vlib_main_t * vm) +{ +#ifdef CLIB_SANITIZE_ADDR + const void *bottom_old; + size_t size_old; + + __sanitizer_finish_switch_fiber (&vm->asan_stack_save, &bottom_old, + &size_old); +#endif +} + /** \brief Get vlib node by index. @warning This function will ASSERT if @c i is out of range. @param vm vlib_main_t pointer, varies by thread @@ -135,7 +161,8 @@ vlib_node_set_runtime_data (vlib_main_t * vm, u32 node_index, STRUCT_OFFSET_OF (vlib_node_runtime_t, runtime_data)); if (vec_len (n->runtime_data) > 0) - clib_memcpy (r->runtime_data, n->runtime_data, vec_len (n->runtime_data)); + clib_memcpy_fast (r->runtime_data, n->runtime_data, + vec_len (n->runtime_data)); } /** \brief Set node dispatch state. @@ -174,6 +201,10 @@ vlib_node_set_state (vlib_main_t * vm, u32 node_index, nm->input_node_counts_by_state[new_state] += 1; } + if (PREDICT_FALSE (r->state == VLIB_NODE_STATE_DISABLED)) + vlib_node_runtime_perf_counter (vm, r, 0, 0, 0, + VLIB_NODE_RUNTIME_PERF_RESET); + n->state = new_state; r->state = new_state; } @@ -193,14 +224,37 @@ vlib_node_get_state (vlib_main_t * vm, u32 node_index) } always_inline void -vlib_node_set_interrupt_pending (vlib_main_t * vm, u32 node_index) +vlib_node_set_interrupt_pending_with_data (vlib_main_t * vm, u32 node_index, + u32 data) { vlib_node_main_t *nm = &vm->node_main; vlib_node_t *n = vec_elt (nm->nodes, node_index); + vlib_node_interrupt_t *i; ASSERT (n->type == VLIB_NODE_TYPE_INPUT); - clib_spinlock_lock_if_init (&nm->pending_interrupt_lock); - vec_add1 (nm->pending_interrupt_node_runtime_indices, n->runtime_index); - clib_spinlock_unlock_if_init (&nm->pending_interrupt_lock); + + if (vm == vlib_get_main ()) + { + /* local thread */ + vec_add2 (nm->pending_local_interrupts, i, 1); + i->node_runtime_index = n->runtime_index; + i->data = data; + } + else + { + /* remote thread */ + clib_spinlock_lock (&nm->pending_interrupt_lock); + vec_add2 (nm->pending_remote_interrupts, i, 1); + i->node_runtime_index = n->runtime_index; + i->data = data; + *nm->pending_remote_interrupts_notify = 1; + clib_spinlock_unlock (&nm->pending_interrupt_lock); + } +} + +always_inline void +vlib_node_set_interrupt_pending (vlib_main_t * vm, u32 node_index) +{ + vlib_node_set_interrupt_pending_with_data (vm, node_index, 0); } always_inline vlib_process_t * @@ -211,42 +265,18 @@ vlib_get_process_from_node (vlib_main_t * vm, vlib_node_t * node) return vec_elt (nm->processes, node->runtime_index); } -/* Fetches frame with given handle. */ always_inline vlib_frame_t * -vlib_get_frame_no_check (vlib_main_t * vm, uword frame_index) +vlib_get_frame (vlib_main_t * vm, vlib_frame_t * f) { - vlib_frame_t *f; - f = vm->heap_base + (frame_index * VLIB_FRAME_ALIGN); + ASSERT (f != NULL); + ASSERT (f->frame_flags & VLIB_FRAME_IS_ALLOCATED); return f; } -always_inline u32 -vlib_frame_index_no_check (vlib_main_t * vm, vlib_frame_t * f) -{ - uword i; - - ASSERT (((uword) f & (VLIB_FRAME_ALIGN - 1)) == 0); - - i = ((u8 *) f - (u8 *) vm->heap_base); - ASSERT ((i / VLIB_FRAME_ALIGN) <= 0xFFFFFFFFULL); - - return i / VLIB_FRAME_ALIGN; -} - -always_inline vlib_frame_t * -vlib_get_frame (vlib_main_t * vm, uword frame_index) -{ - vlib_frame_t *f = vlib_get_frame_no_check (vm, frame_index); - ASSERT (f->flags & VLIB_FRAME_IS_ALLOCATED); - return f; -} - -always_inline u32 -vlib_frame_index (vlib_main_t * vm, vlib_frame_t * f) +always_inline void +vlib_frame_no_append (vlib_frame_t * f) { - uword i = vlib_frame_index_no_check (vm, f); - ASSERT (vlib_get_frame (vm, i) == f); - return i; + f->frame_flags |= VLIB_FRAME_NO_APPEND; } /* Byte alignment for vector arguments. */ @@ -271,9 +301,6 @@ vlib_frame_vector_args (vlib_frame_t * f) /** \brief Get pointer to frame scalar data. - @warning This is almost certainly not the function you wish to call. - See @ref vlib_frame_vector_args instead. - @param f vlib_frame_t pointer @return arbitrary node scalar data @@ -281,7 +308,7 @@ vlib_frame_vector_args (vlib_frame_t * f) @sa vlib_frame_vector_args */ always_inline void * -vlib_frame_args (vlib_frame_t * f) +vlib_frame_scalar_args (vlib_frame_t * f) { return vlib_frame_vector_args (f) - f->scalar_size; } @@ -428,6 +455,13 @@ vlib_current_process (vlib_main_t * vm) return vlib_get_current_process (vm)->node_runtime.node_index; } +always_inline u32 +vlib_get_current_process_node_index (vlib_main_t * vm) +{ + vlib_process_t *process = vlib_get_current_process (vm); + return process->node_runtime.node_index; +} + /** Returns TRUE if a process suspend time is less than 10us @param dt - remaining poll time in seconds @returns 1 if dt < 10e-6, 0 otherwise @@ -460,8 +494,11 @@ vlib_process_suspend (vlib_main_t * vm, f64 dt) { /* expiration time in 10us ticks */ p->resume_clock_interval = dt * 1e5; + vlib_process_start_switch_stack (vm, 0); clib_longjmp (&p->return_longjmp, VLIB_PROCESS_RETURN_LONGJMP_SUSPEND); } + else + vlib_process_finish_switch_stack (vm); return r; } @@ -629,8 +666,13 @@ vlib_process_wait_for_event (vlib_main_t * vm) r = clib_setjmp (&p->resume_longjmp, VLIB_PROCESS_RESUME_LONGJMP_SUSPEND); if (r == VLIB_PROCESS_RESUME_LONGJMP_SUSPEND) - clib_longjmp (&p->return_longjmp, - VLIB_PROCESS_RETURN_LONGJMP_SUSPEND); + { + vlib_process_start_switch_stack (vm, 0); + clib_longjmp (&p->return_longjmp, + VLIB_PROCESS_RETURN_LONGJMP_SUSPEND); + } + else + vlib_process_finish_switch_stack (vm); } return p->non_empty_event_type_bitmap; @@ -653,8 +695,13 @@ vlib_process_wait_for_one_time_event (vlib_main_t * vm, r = clib_setjmp (&p->resume_longjmp, VLIB_PROCESS_RESUME_LONGJMP_SUSPEND); if (r == VLIB_PROCESS_RESUME_LONGJMP_SUSPEND) - clib_longjmp (&p->return_longjmp, - VLIB_PROCESS_RETURN_LONGJMP_SUSPEND); + { + vlib_process_start_switch_stack (vm, 0); + clib_longjmp (&p->return_longjmp, + VLIB_PROCESS_RETURN_LONGJMP_SUSPEND); + } + else + vlib_process_finish_switch_stack (vm); } return vlib_process_get_events_helper (p, with_type_index, data_vector); @@ -677,8 +724,13 @@ vlib_process_wait_for_event_with_type (vlib_main_t * vm, r = clib_setjmp (&p->resume_longjmp, VLIB_PROCESS_RESUME_LONGJMP_SUSPEND); if (r == VLIB_PROCESS_RESUME_LONGJMP_SUSPEND) - clib_longjmp (&p->return_longjmp, - VLIB_PROCESS_RETURN_LONGJMP_SUSPEND); + { + vlib_process_start_switch_stack (vm, 0); + clib_longjmp (&p->return_longjmp, + VLIB_PROCESS_RETURN_LONGJMP_SUSPEND); + } + else + vlib_process_finish_switch_stack (vm); /* See if unknown event type has been signaled now. */ if (!h) @@ -719,8 +771,11 @@ vlib_process_wait_for_event_or_clock (vlib_main_t * vm, f64 dt) if (r == VLIB_PROCESS_RESUME_LONGJMP_SUSPEND) { p->resume_clock_interval = dt * 1e5; + vlib_process_start_switch_stack (vm, 0); clib_longjmp (&p->return_longjmp, VLIB_PROCESS_RETURN_LONGJMP_SUSPEND); } + else + vlib_process_finish_switch_stack (vm); /* Return amount of time still left to sleep. If <= 0 then we've been waken up by the clock (and not an event). */ @@ -818,7 +873,15 @@ vlib_process_signal_event_helper (vlib_node_main_t * nm, { /* Waiting for both event and clock? */ if (p_flags & VLIB_PROCESS_IS_SUSPENDED_WAITING_FOR_EVENT) - delete_from_wheel = 1; + { + if (!TW (tw_timer_handle_is_free) + ((TWT (tw_timer_wheel) *) nm->timing_wheel, + p->stop_timer_handle)) + delete_from_wheel = 1; + else + /* timer just popped so process should already be on the list */ + add_to_pending = 0; + } else /* Waiting only for clock. Event will be queue and may be handled when timer expires. */ @@ -1007,7 +1070,7 @@ vlib_signal_one_time_waiting_process (vlib_main_t * vm, { vlib_process_signal_one_time_event (vm, p->node_index, p->one_time_event, /* data */ ~0); - memset (p, ~0, sizeof (p[0])); + clib_memset (p, ~0, sizeof (p[0])); } always_inline void @@ -1174,6 +1237,16 @@ vlib_node_increment_counter (vlib_main_t * vm, u32 node_index, em->counters[node_counter_base_index + counter_index] += increment; } +/** @brief Create a vlib process + * @param vm &vlib_global_main + * @param f the process node function + * @param log2_n_stack_bytes size of the process stack, defaults to 16K + * @return newly-create node index + * @warning call only on the main thread. Barrier sync required + */ +u32 vlib_process_create (vlib_main_t * vm, char *name, + vlib_node_function_t * f, u32 log2_n_stack_bytes); + #endif /* included_vlib_node_funcs_h */ /*