diff options
Diffstat (limited to 'src/vlib/node_funcs.h')
| -rw-r--r-- | src/vlib/node_funcs.h | 320 |
1 files changed, 271 insertions, 49 deletions
diff --git a/src/vlib/node_funcs.h b/src/vlib/node_funcs.h index 3c90a88efa0..1beac33cf9b 100644 --- a/src/vlib/node_funcs.h +++ b/src/vlib/node_funcs.h @@ -45,6 +45,7 @@ #ifndef included_vlib_node_funcs_h #define included_vlib_node_funcs_h +#include <vppinfra/clib.h> #include <vppinfra/fifo.h> #include <vppinfra/tw_timer_1t_3w_1024sl_ov.h> #include <vppinfra/interrupt.h> @@ -58,7 +59,8 @@ 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; + u32 stack_bytes = + p ? (1ULL < p->log2_n_stack_bytes) : VLIB_THREAD_STACK_SIZE; __sanitizer_start_switch_fiber (&vm->asan_stack_save, stack, stack_bytes); #endif } @@ -250,15 +252,22 @@ vlib_node_set_interrupt_pending (vlib_main_t *vm, u32 node_index) { vlib_node_main_t *nm = &vm->node_main; vlib_node_t *n = vec_elt (nm->nodes, node_index); + void *interrupts = 0; - ASSERT (n->type == VLIB_NODE_TYPE_INPUT); + if (n->type == VLIB_NODE_TYPE_INPUT) + interrupts = nm->input_node_interrupts; + else if (n->type == VLIB_NODE_TYPE_PRE_INPUT) + interrupts = nm->pre_input_node_interrupts; + else + { + ASSERT (0); + return; + } if (vm != vlib_get_main ()) - clib_interrupt_set_atomic (nm->interrupts, n->runtime_index); + clib_interrupt_set_atomic (interrupts, n->runtime_index); else - clib_interrupt_set (nm->interrupts, n->runtime_index); - - __atomic_store_n (nm->pending_interrupts, 1, __ATOMIC_RELEASE); + clib_interrupt_set (interrupts, n->runtime_index); } always_inline vlib_process_t * @@ -283,16 +292,6 @@ vlib_frame_no_append (vlib_frame_t * f) f->frame_flags |= VLIB_FRAME_NO_APPEND; } -/* Byte alignment for vector arguments. */ -#define VLIB_FRAME_VECTOR_ALIGN (1 << 4) - -always_inline u32 -vlib_frame_vector_byte_offset (u32 scalar_size) -{ - return round_pow2 (sizeof (vlib_frame_t) + scalar_size, - VLIB_FRAME_VECTOR_ALIGN); -} - /** \brief Get pointer to frame vector data. @param f vlib_frame_t pointer @return pointer to first vector element in frame @@ -300,7 +299,19 @@ vlib_frame_vector_byte_offset (u32 scalar_size) always_inline void * vlib_frame_vector_args (vlib_frame_t * f) { - return (void *) f + vlib_frame_vector_byte_offset (f->scalar_size); + ASSERT (f->vector_offset); + return (void *) f + f->vector_offset; +} + +/** \brief Get pointer to frame vector aux data. + @param f vlib_frame_t pointer + @return pointer to first vector aux data element in frame +*/ +always_inline void * +vlib_frame_aux_args (vlib_frame_t *f) +{ + ASSERT (f->aux_offset); + return (void *) f + f->aux_offset; } /** \brief Get pointer to frame scalar data. @@ -314,7 +325,8 @@ vlib_frame_vector_args (vlib_frame_t * f) always_inline void * vlib_frame_scalar_args (vlib_frame_t * f) { - return vlib_frame_vector_args (f) - f->scalar_size; + ASSERT (f->scalar_offset); + return (void *) f + f->scalar_offset; } always_inline vlib_next_frame_t * @@ -369,16 +381,34 @@ vlib_frame_t *vlib_get_next_frame_internal (vlib_main_t * vm, u32 next_index, u32 alloc_new_frame); -#define vlib_get_next_frame_macro(vm,node,next_index,vectors,n_vectors_left,alloc_new_frame) \ -do { \ - vlib_frame_t * _f \ - = vlib_get_next_frame_internal ((vm), (node), (next_index), \ - (alloc_new_frame)); \ - u32 _n = _f->n_vectors; \ - (vectors) = vlib_frame_vector_args (_f) + _n * sizeof ((vectors)[0]); \ - (n_vectors_left) = VLIB_FRAME_SIZE - _n; \ -} while (0) - +#define vlib_get_next_frame_macro(vm, node, next_index, vectors, \ + n_vectors_left, alloc_new_frame) \ + do \ + { \ + vlib_frame_t *_f = vlib_get_next_frame_internal ( \ + (vm), (node), (next_index), (alloc_new_frame)); \ + u32 _n = _f->n_vectors; \ + (vectors) = vlib_frame_vector_args (_f) + _n * sizeof ((vectors)[0]); \ + (n_vectors_left) = VLIB_FRAME_SIZE - _n; \ + } \ + while (0) + +#define vlib_get_next_frame_macro_with_aux(vm, node, next_index, vectors, \ + n_vectors_left, alloc_new_frame, \ + aux_data, maybe_no_aux) \ + do \ + { \ + vlib_frame_t *_f = vlib_get_next_frame_internal ( \ + (vm), (node), (next_index), (alloc_new_frame)); \ + u32 _n = _f->n_vectors; \ + (vectors) = vlib_frame_vector_args (_f) + _n * sizeof ((vectors)[0]); \ + if ((maybe_no_aux) && (_f)->aux_offset == 0) \ + (aux_data) = NULL; \ + else \ + (aux_data) = vlib_frame_aux_args (_f) + _n * sizeof ((aux_data)[0]); \ + (n_vectors_left) = VLIB_FRAME_SIZE - _n; \ + } \ + while (0) /** \brief Get pointer to next frame vector data by (@c vlib_node_runtime_t, @c next_index). @@ -392,16 +422,69 @@ do { \ @return @c vectors -- pointer to next available vector slot @return @c n_vectors_left -- number of vector slots available */ -#define vlib_get_next_frame(vm,node,next_index,vectors,n_vectors_left) \ - vlib_get_next_frame_macro (vm, node, next_index, \ - vectors, n_vectors_left, \ +#define vlib_get_next_frame(vm, node, next_index, vectors, n_vectors_left) \ + vlib_get_next_frame_macro (vm, node, next_index, vectors, n_vectors_left, \ /* alloc new frame */ 0) -#define vlib_get_new_next_frame(vm,node,next_index,vectors,n_vectors_left) \ - vlib_get_next_frame_macro (vm, node, next_index, \ - vectors, n_vectors_left, \ +#define vlib_get_new_next_frame(vm, node, next_index, vectors, \ + n_vectors_left) \ + vlib_get_next_frame_macro (vm, node, next_index, vectors, n_vectors_left, \ /* alloc new frame */ 1) +/** \brief Get pointer to next frame vector data and next frame aux data by + (@c vlib_node_runtime_t, @c next_index). + Standard single/dual loop boilerplate element. + @attention This is a MACRO, with SIDE EFFECTS. + @attention This MACRO is unsafe in case the next node does not support + aux_data + + @param vm vlib_main_t pointer, varies by thread + @param node current node vlib_node_runtime_t pointer + @param next_index requested graph arc index + + @return @c vectors -- pointer to next available vector slot + @return @c aux_data -- pointer to next available aux data slot + @return @c n_vectors_left -- number of vector slots available +*/ +#define vlib_get_next_frame_with_aux(vm, node, next_index, vectors, aux_data, \ + n_vectors_left) \ + vlib_get_next_frame_macro_with_aux ( \ + vm, node, next_index, vectors, n_vectors_left, /* alloc new frame */ 0, \ + aux_data, /* maybe_no_aux */ 0) + +#define vlib_get_new_next_frame_with_aux(vm, node, next_index, vectors, \ + aux_data, n_vectors_left) \ + vlib_get_next_frame_macro_with_aux ( \ + vm, node, next_index, vectors, n_vectors_left, /* alloc new frame */ 1, \ + aux_data, /* maybe_no_aux */ 0) + +/** \brief Get pointer to next frame vector data and next frame aux data by + (@c vlib_node_runtime_t, @c next_index). + Standard single/dual loop boilerplate element. + @attention This is a MACRO, with SIDE EFFECTS. + @attention This MACRO is safe in case the next node does not support aux_data. + In that case aux_data is set to NULL. + + @param vm vlib_main_t pointer, varies by thread + @param node current node vlib_node_runtime_t pointer + @param next_index requested graph arc index + + @return @c vectors -- pointer to next available vector slot + @return @c aux_data -- pointer to next available aux data slot + @return @c n_vectors_left -- number of vector slots available +*/ +#define vlib_get_next_frame_with_aux_safe(vm, node, next_index, vectors, \ + aux_data, n_vectors_left) \ + vlib_get_next_frame_macro_with_aux ( \ + vm, node, next_index, vectors, n_vectors_left, /* alloc new frame */ 0, \ + aux_data, /* maybe_no_aux */ 1) + +#define vlib_get_new_next_frame_with_aux_safe(vm, node, next_index, vectors, \ + aux_data, n_vectors_left) \ + vlib_get_next_frame_macro_with_aux ( \ + vm, node, next_index, vectors, n_vectors_left, /* alloc new frame */ 1, \ + aux_data, /* maybe_no_aux */ 1) + /** \brief Release pointer to next frame vector data. Standard single/dual loop boilerplate element. @param vm vlib_main_t pointer, varies by thread @@ -424,6 +507,16 @@ vlib_put_next_frame (vlib_main_t * vm, (v); \ }) +#define vlib_set_next_frame_with_aux_safe(vm, node, next_index, v, aux) \ + ({ \ + uword _n_left; \ + vlib_get_next_frame_with_aux_safe ((vm), (node), (next_index), (v), \ + (aux), _n_left); \ + ASSERT (_n_left > 0); \ + vlib_put_next_frame ((vm), (node), (next_index), _n_left - 1); \ + (v); \ + }) + always_inline void vlib_set_next_frame_buffer (vlib_main_t * vm, vlib_node_runtime_t * node, @@ -434,6 +527,20 @@ vlib_set_next_frame_buffer (vlib_main_t * vm, p[0] = buffer_index; } +always_inline void +vlib_set_next_frame_buffer_with_aux_safe (vlib_main_t *vm, + vlib_node_runtime_t *node, + u32 next_index, u32 buffer_index, + u32 aux) +{ + u32 *p; + u32 *a; + p = vlib_set_next_frame_with_aux_safe (vm, node, next_index, p, a); + p[0] = buffer_index; + if (a) + a[0] = aux; +} + vlib_frame_t *vlib_get_frame_to_node (vlib_main_t * vm, u32 to_node_index); void vlib_put_frame_to_node (vlib_main_t * vm, u32 to_node_index, vlib_frame_t * f); @@ -601,7 +708,7 @@ vlib_process_get_events (vlib_main_t * vm, uword ** data_vector) l = _vec_len (p->pending_event_data_by_type_index[t]); if (data_vector) vec_add (*data_vector, p->pending_event_data_by_type_index[t], l); - _vec_len (p->pending_event_data_by_type_index[t]) = 0; + vec_set_len (p->pending_event_data_by_type_index[t], 0); et = pool_elt_at_index (p->event_type_pool, t); @@ -625,7 +732,7 @@ vlib_process_get_events_helper (vlib_process_t * p, uword t, l = _vec_len (p->pending_event_data_by_type_index[t]); if (data_vector) vec_add (*data_vector, p->pending_event_data_by_type_index[t], l); - _vec_len (p->pending_event_data_by_type_index[t]) = 0; + vec_set_len (p->pending_event_data_by_type_index[t], 0); vlib_process_maybe_free_event_type (p, t); @@ -832,7 +939,8 @@ vlib_process_signal_event_helper (vlib_node_main_t * nm, uword n_data_elts, uword n_data_elt_bytes) { uword p_flags, add_to_pending, delete_from_wheel; - void *data_to_be_written_by_caller; + u8 *data_to_be_written_by_caller; + vec_attr_t va = { .elt_sz = n_data_elt_bytes }; ASSERT (n->type == VLIB_NODE_TYPE_PROCESS); @@ -842,22 +950,18 @@ vlib_process_signal_event_helper (vlib_node_main_t * nm, /* Resize data vector and return caller's data to be written. */ { - void *data_vec = p->pending_event_data_by_type_index[t]; + u8 *data_vec = p->pending_event_data_by_type_index[t]; uword l; if (!data_vec && vec_len (nm->recycled_event_data_vectors)) { data_vec = vec_pop (nm->recycled_event_data_vectors); - _vec_len (data_vec) = 0; + vec_reset_length (data_vec); } l = vec_len (data_vec); - data_vec = _vec_resize (data_vec, - /* length_increment */ n_data_elts, - /* total size after increment */ - (l + n_data_elts) * n_data_elt_bytes, - /* header_bytes */ 0, /* data_align */ 0); + data_vec = _vec_realloc_internal (data_vec, l + n_data_elts, &va); p->pending_event_data_by_type_index[t] = data_vec; data_to_be_written_by_caller = data_vec + l * n_data_elt_bytes; @@ -902,8 +1006,11 @@ vlib_process_signal_event_helper (vlib_node_main_t * nm, p->flags = p_flags | VLIB_PROCESS_RESUME_PENDING; vec_add1 (nm->data_from_advancing_timing_wheel, x); if (delete_from_wheel) - TW (tw_timer_stop) ((TWT (tw_timer_wheel) *) nm->timing_wheel, - p->stop_timer_handle); + { + TW (tw_timer_stop) + ((TWT (tw_timer_wheel) *) nm->timing_wheel, p->stop_timer_handle); + p->stop_timer_handle = ~0; + } } return data_to_be_written_by_caller; @@ -1161,8 +1268,7 @@ vlib_node_vectors_per_main_loop_as_integer (vlib_main_t * vm, u32 node_index) return v >> VLIB_LOG2_MAIN_LOOPS_PER_STATS_UPDATE; } -void -vlib_frame_free (vlib_main_t * vm, vlib_node_runtime_t * r, vlib_frame_t * f); +void vlib_frame_free (vlib_main_t *vm, vlib_frame_t *f); /* Return the edge index if present, ~0 otherwise */ uword vlib_node_get_next (vlib_main_t * vm, uword node, uword next_node); @@ -1208,7 +1314,8 @@ void vlib_node_rename (vlib_main_t * vm, u32 node_index, char *fmt, ...); /* Register new packet processing node. Nodes can be registered dynamically via this call or statically via the VLIB_REGISTER_NODE macro. */ -u32 vlib_register_node (vlib_main_t * vm, vlib_node_registration_t * r); +u32 vlib_register_node (vlib_main_t *vm, vlib_node_registration_t *r, + char *fmt, ...); /* Register all node function variants */ void vlib_register_all_node_march_variants (vlib_main_t *vm); @@ -1276,6 +1383,121 @@ vlib_node_function_t * vlib_node_get_preferred_node_fn_variant (vlib_main_t *vm, vlib_node_fn_registration_t *regs); +/* + * vlib_frame_bitmap functions + */ + +#define VLIB_FRAME_BITMAP_N_UWORDS \ + (((VLIB_FRAME_SIZE + uword_bits - 1) & ~(uword_bits - 1)) / uword_bits) + +typedef uword vlib_frame_bitmap_t[VLIB_FRAME_BITMAP_N_UWORDS]; + +static_always_inline void +vlib_frame_bitmap_init (uword *bmp, u32 n_first_bits_set) +{ + u32 n_left = VLIB_FRAME_BITMAP_N_UWORDS; + while (n_first_bits_set >= (sizeof (uword) * 8) && n_left) + { + bmp++[0] = ~0; + n_first_bits_set -= sizeof (uword) * 8; + n_left--; + } + + if (n_first_bits_set && n_left) + { + bmp++[0] = pow2_mask (n_first_bits_set); + n_left--; + } + + while (n_left--) + bmp++[0] = 0; +} + +static_always_inline void +vlib_frame_bitmap_set_bit_at_index (uword *bmp, uword bit_index) +{ + uword_bitmap_set_bits_at_index (bmp, bit_index, 1); +} + +static_always_inline void +_vlib_frame_bitmap_clear_bit_at_index (uword *bmp, uword bit_index) +{ + uword_bitmap_clear_bits_at_index (bmp, bit_index, 1); +} + +static_always_inline void +vlib_frame_bitmap_set_bits_at_index (uword *bmp, uword bit_index, uword n_bits) +{ + uword_bitmap_set_bits_at_index (bmp, bit_index, n_bits); +} + +static_always_inline void +vlib_frame_bitmap_clear_bits_at_index (uword *bmp, uword bit_index, + uword n_bits) +{ + uword_bitmap_clear_bits_at_index (bmp, bit_index, n_bits); +} + +static_always_inline void +vlib_frame_bitmap_clear (uword *bmp) +{ + u32 n_left = VLIB_FRAME_BITMAP_N_UWORDS; + while (n_left--) + bmp++[0] = 0; +} + +static_always_inline void +vlib_frame_bitmap_xor (uword *bmp, uword *bmp2) +{ + u32 n_left = VLIB_FRAME_BITMAP_N_UWORDS; + while (n_left--) + bmp++[0] ^= bmp2++[0]; +} + +static_always_inline void +vlib_frame_bitmap_or (uword *bmp, uword *bmp2) +{ + u32 n_left = VLIB_FRAME_BITMAP_N_UWORDS; + while (n_left--) + bmp++[0] |= bmp2++[0]; +} + +static_always_inline void +vlib_frame_bitmap_and (uword *bmp, uword *bmp2) +{ + u32 n_left = VLIB_FRAME_BITMAP_N_UWORDS; + while (n_left--) + bmp++[0] &= bmp2++[0]; +} + +static_always_inline uword +vlib_frame_bitmap_count_set_bits (uword *bmp) +{ + return uword_bitmap_count_set_bits (bmp, VLIB_FRAME_BITMAP_N_UWORDS); +} + +static_always_inline uword +vlib_frame_bitmap_is_bit_set (uword *bmp, uword bit_index) +{ + return uword_bitmap_is_bit_set (bmp, bit_index); +} + +static_always_inline uword +vlib_frame_bitmap_find_first_set (uword *bmp) +{ + uword rv = uword_bitmap_find_first_set (bmp); + ASSERT (rv < VLIB_FRAME_BITMAP_N_UWORDS * uword_bits); + return rv; +} + +#define foreach_vlib_frame_bitmap_set_bit_index(i, v) \ + for (uword _off = 0; _off < ARRAY_LEN (v); _off++) \ + for (uword _tmp = \ + (v[_off]) + 0 * (uword) (i = _off * uword_bits + \ + get_lowest_set_bit_index (v[_off])); \ + _tmp; i = _off * uword_bits + get_lowest_set_bit_index ( \ + _tmp = clear_lowest_set_bit (_tmp))) + #endif /* included_vlib_node_funcs_h */ /* |