diff options
Diffstat (limited to 'vlib/vlib/node.h')
| -rw-r--r-- | vlib/vlib/node.h | 218 |
1 files changed, 131 insertions, 87 deletions
diff --git a/vlib/vlib/node.h b/vlib/vlib/node.h index e9842275..795856e6 100644 --- a/vlib/vlib/node.h +++ b/vlib/vlib/node.h @@ -55,7 +55,8 @@ typedef uword (vlib_node_function_t) (struct vlib_main_t * vm, struct vlib_node_runtime_t * node, struct vlib_frame_t * frame); -typedef enum { +typedef enum +{ /* An internal node on the call graph (could be output). */ VLIB_NODE_TYPE_INTERNAL, @@ -74,15 +75,16 @@ typedef enum { VLIB_N_NODE_TYPE, } vlib_node_type_t; -typedef struct _vlib_node_registration { +typedef struct _vlib_node_registration +{ /* Vector processing function for this node. */ - vlib_node_function_t * function; + vlib_node_function_t *function; /* Node name. */ - char * name; + char *name; /* Name of sibling (if applicable). */ - char * sibling_of; + char *sibling_of; /* Node index filled in by registration. */ u32 index; @@ -91,23 +93,23 @@ typedef struct _vlib_node_registration { vlib_node_type_t type; /* Error strings indexed by error code for this node. */ - char ** error_strings; + char **error_strings; /* Buffer format/unformat for this node. */ - format_function_t * format_buffer; - unformat_function_t * unformat_buffer; + format_function_t *format_buffer; + unformat_function_t *unformat_buffer; /* Trace format/unformat for this node. */ - format_function_t * format_trace; - unformat_function_t * unformat_trace; + format_function_t *format_trace; + unformat_function_t *unformat_trace; /* Function to validate incoming frames. */ - u8 * (* validate_frame) (struct vlib_main_t * vm, - struct vlib_node_runtime_t *, - struct vlib_frame_t * f); + u8 *(*validate_frame) (struct vlib_main_t * vm, + struct vlib_node_runtime_t *, + struct vlib_frame_t * f); /* Per-node runtime data. */ - void * runtime_data; + void *runtime_data; /* Process stack size. */ u16 process_log2_n_stack_bytes; @@ -131,10 +133,10 @@ typedef struct _vlib_node_registration { u16 n_next_nodes; /* Constructor link-list, don't ask... */ - struct _vlib_node_registration * next_registration; + struct _vlib_node_registration *next_registration; /* Names of next nodes which this node feeds into. */ - char * next_nodes[]; + char *next_nodes[]; } vlib_node_registration_t; @@ -148,7 +150,7 @@ static void __vlib_add_node_registration_##x (void) \ x.next_registration = vm->node_main.node_registrations; \ vm->node_main.node_registrations = &x; \ } \ -__VA_ARGS__ vlib_node_registration_t x +__VA_ARGS__ vlib_node_registration_t x #if CLIB_DEBUG > 0 #define VLIB_NODE_FUNCTION_CLONE_TEMPLATE(arch, fn) @@ -179,11 +181,14 @@ __VA_ARGS__ vlib_node_registration_t x always_inline vlib_node_registration_t * vlib_node_next_registered (vlib_node_registration_t * c) { - c = clib_elf_section_data_next (c, c->n_next_nodes * sizeof (c->next_nodes[0])); + c = + clib_elf_section_data_next (c, + c->n_next_nodes * sizeof (c->next_nodes[0])); return c; } -typedef struct { +typedef struct +{ /* Total calls, clock ticks and vector elements processed for this node. */ u64 calls, vectors, clocks, suspends; u64 max_clock; @@ -199,19 +204,21 @@ typedef struct { /* Input node is never called. */ \ _ (DISABLED) -typedef enum { +typedef enum +{ #define _(f) VLIB_NODE_STATE_##f, foreach_vlib_node_state #undef _ - VLIB_N_NODE_STATE, + VLIB_N_NODE_STATE, } vlib_node_state_t; -typedef struct vlib_node_t { +typedef struct vlib_node_t +{ /* Vector processing function for this node. */ - vlib_node_function_t * function; + vlib_node_function_t *function; /* Node name. */ - u8 * name; + u8 *name; /* Node name index in elog string table. */ u32 name_elog_string; @@ -233,7 +240,7 @@ typedef struct vlib_node_t { u32 runtime_index; /* Runtime data for this node. */ - void * runtime_data; + void *runtime_data; /* Node flags. */ u16 flags; @@ -271,48 +278,48 @@ typedef struct vlib_node_t { u32 error_heap_index; /* Error strings indexed by error code for this node. */ - char ** error_strings; + char **error_strings; /* Vector of next node names. Only used before next_nodes array is initialized. */ - char ** next_node_names; + char **next_node_names; /* Next node indices for this node. */ - u32 * next_nodes; + u32 *next_nodes; /* Name of node that we are sibling of. */ - char * sibling_of; + char *sibling_of; /* Bitmap of all of this node's siblings. */ - uword * sibling_bitmap; + uword *sibling_bitmap; /* Total number of vectors sent to each next node. */ - u64 * n_vectors_by_next_node; + u64 *n_vectors_by_next_node; /* Hash table mapping next node index into slot in next_nodes vector. Quickly determines whether this node is connected to given next node and, if so, with which slot. */ - uword * next_slot_by_node; + uword *next_slot_by_node; /* Bitmap of node indices which feed this node. */ - uword * prev_node_bitmap; + uword *prev_node_bitmap; /* Node/next-index which own enqueue rights with to this node. */ u32 owner_node_index, owner_next_index; /* Buffer format/unformat for this node. */ - format_function_t * format_buffer; - unformat_function_t * unformat_buffer; + format_function_t *format_buffer; + unformat_function_t *unformat_buffer; /* Trace buffer format/unformat for this node. */ - format_function_t * format_trace; + format_function_t *format_trace; /* Function to validate incoming frames. */ - u8 * (* validate_frame) (struct vlib_main_t * vm, - struct vlib_node_runtime_t *, - struct vlib_frame_t * f); + u8 *(*validate_frame) (struct vlib_main_t * vm, + struct vlib_node_runtime_t *, + struct vlib_frame_t * f); /* for pretty-printing, not typically valid */ - u8 * state_string; + u8 *state_string; } vlib_node_t; #define VLIB_INVALID_NODE_INDEX ((u32) ~0) @@ -322,7 +329,8 @@ typedef struct vlib_node_t { #define VLIB_FRAME_ALIGN VLIB_MAX_CPUS /* Calling frame (think stack frame) for a node. */ -typedef struct vlib_frame_t { +typedef struct vlib_frame_t +{ /* Frame flags. */ u16 flags; @@ -342,7 +350,8 @@ typedef struct vlib_frame_t { u8 arguments[0]; } vlib_frame_t; -typedef struct { +typedef struct +{ /* Frame index. */ u32 frame_index; @@ -385,7 +394,8 @@ vlib_next_frame_init (vlib_next_frame_t * nf) } /* A frame pending dispatch by main loop. */ -typedef struct { +typedef struct +{ /* Node and runtime for this frame. */ u32 node_runtime_index; @@ -399,12 +409,13 @@ typedef struct { #define VLIB_PENDING_FRAME_NO_NEXT_FRAME ((u32) ~0) } vlib_pending_frame_t; -typedef struct vlib_node_runtime_t { +typedef struct vlib_node_runtime_t +{ /* Node function to call. */ - vlib_node_function_t * function; + vlib_node_function_t *function; /* Vector of errors for this node. */ - vlib_error_t * errors; + vlib_error_t *errors; /* Number of clock cycles. */ u32 clocks_since_last_overflow; @@ -459,22 +470,26 @@ typedef struct vlib_node_runtime_t { - 1 * sizeof (vlib_error_t *) - 11 * sizeof (u32) - 5 * sizeof (u16)) / sizeof (uword)]; -} vlib_node_runtime_t; +} +vlib_node_runtime_t; -typedef struct { +typedef struct +{ /* Number of allocated frames for this scalar/vector size. */ u32 n_alloc_frames; /* Vector of free frame indices for this scalar/vector size. */ - u32 * free_frame_indices; + u32 *free_frame_indices; } vlib_frame_size_t; -typedef struct { +typedef struct +{ /* Users opaque value for event type. */ uword opaque; } vlib_process_event_type_t; -typedef struct { +typedef struct +{ /* Node runtime for this process. */ vlib_node_runtime_t node_runtime; @@ -507,20 +522,20 @@ typedef struct { u32 n_suspends; /* Vectors of pending event data indexed by event type index. */ - void ** pending_event_data_by_type_index; + void **pending_event_data_by_type_index; /* Bitmap of event type-indices with non-empty vectors. */ - uword * non_empty_event_type_bitmap; + uword *non_empty_event_type_bitmap; /* Bitmap of event type-indices which are one time events. */ - uword * one_time_event_type_bitmap; + uword *one_time_event_type_bitmap; /* Type is opaque pointer -- typically a pointer to an event handler function. Hash table to map opaque to a type index. */ - uword * event_type_index_by_type_opaque; + uword *event_type_index_by_type_opaque; /* Pool of currently valid event types. */ - vlib_process_event_type_t * event_type_pool; + vlib_process_event_type_t *event_type_pool; /* When suspending saves cpu cycle counter when process is to be resumed. */ u64 resume_cpu_time; @@ -547,17 +562,25 @@ typedef struct { #ifdef CLIB_UNIX /* Ensure that the stack is aligned on the multiple of the page size */ -typedef char assert_process_stack_must_be_aligned_exactly_to_page_size_multiple - [(sizeof(vlib_process_t) - PAGE_SIZE_MULTIPLE) == 0 ? 0 : -1]; +typedef char + assert_process_stack_must_be_aligned_exactly_to_page_size_multiple[(sizeof + (vlib_process_t) + - + PAGE_SIZE_MULTIPLE) + == + 0 ? 0 : + -1]; #endif -typedef struct { - u32 node_index; +typedef struct +{ + u32 node_index; - u32 one_time_event; + u32 one_time_event; } vlib_one_time_waiting_process_t; -typedef struct { +typedef struct +{ u16 n_data_elts; u16 n_data_elt_bytes; @@ -570,46 +593,57 @@ typedef struct { u32 event_type_index; - union { + union + { u8 inline_event_data[64 - 3 * sizeof (u32) - 2 * sizeof (u16)]; /* Vector of event data used only when data does not fit inline. */ - u8 * event_data_as_vector; + u8 *event_data_as_vector; }; -} vlib_signal_timed_event_data_t; +} +vlib_signal_timed_event_data_t; always_inline uword vlib_timing_wheel_data_is_timed_event (u32 d) -{ return d & 1; } +{ + return d & 1; +} always_inline u32 vlib_timing_wheel_data_set_suspended_process (u32 i) -{ return 0 + 2*i; } +{ + return 0 + 2 * i; +} always_inline u32 vlib_timing_wheel_data_set_timed_event (u32 i) -{ return 1 + 2*i; } +{ + return 1 + 2 * i; +} always_inline uword vlib_timing_wheel_data_get_index (u32 d) -{ return d / 2; } +{ + return d / 2; +} -typedef struct { +typedef struct +{ /* Public nodes. */ - vlib_node_t ** nodes; + vlib_node_t **nodes; /* Node index hashed by node name. */ - uword * node_by_name; + uword *node_by_name; u32 flags; #define VLIB_NODE_MAIN_RUNTIME_STARTED (1 << 0) /* Nodes segregated by type for cache locality. Does not apply to nodes of type VLIB_NODE_TYPE_INTERNAL. */ - vlib_node_runtime_t * nodes_by_type[VLIB_N_NODE_TYPE]; + vlib_node_runtime_t *nodes_by_type[VLIB_N_NODE_TYPE]; /* Node runtime indices for input nodes with pending interrupts. */ - u32 * pending_interrupt_node_runtime_indices; + u32 *pending_interrupt_node_runtime_indices; /* Input nodes are switched from/to interrupt to/from polling mode when average vector length goes above/below polling/interrupt @@ -618,55 +652,56 @@ typedef struct { u32 interrupt_threshold_vector_length; /* Vector of next frames. */ - vlib_next_frame_t * next_frames; + vlib_next_frame_t *next_frames; /* Vector of internal node's frames waiting to be called. */ - vlib_pending_frame_t * pending_frames; + vlib_pending_frame_t *pending_frames; /* Timing wheel for scheduling time-based node dispatch. */ timing_wheel_t timing_wheel; - vlib_signal_timed_event_data_t * signal_timed_event_data_pool; + vlib_signal_timed_event_data_t *signal_timed_event_data_pool; /* Opaque data vector added via timing_wheel_advance. */ - u32 * data_from_advancing_timing_wheel; + u32 *data_from_advancing_timing_wheel; /* CPU time of next process to be ready on timing wheel. */ u64 cpu_time_next_process_ready; /* Vector of process nodes. One for each node of type VLIB_NODE_TYPE_PROCESS. */ - vlib_process_t ** processes; + vlib_process_t **processes; /* Current running process or ~0 if no process running. */ u32 current_process_index; /* Pool of pending process frames. */ - vlib_pending_frame_t * suspended_process_frames; + vlib_pending_frame_t *suspended_process_frames; /* Vector of event data vectors pending recycle. */ - void ** recycled_event_data_vectors; + void **recycled_event_data_vectors; /* Current counts of nodes in each state. */ u32 input_node_counts_by_state[VLIB_N_NODE_STATE]; /* Hash of (scalar_size,vector_size) to frame_sizes index. */ - uword * frame_size_hash; + uword *frame_size_hash; /* Per-size frame allocation information. */ - vlib_frame_size_t * frame_sizes; + vlib_frame_size_t *frame_sizes; /* Time of last node runtime stats clear. */ f64 time_last_runtime_stats_clear; /* Node registrations added by constructors */ - vlib_node_registration_t * node_registrations; + vlib_node_registration_t *node_registrations; } vlib_node_main_t; #define FRAME_QUEUE_MAX_NELTS 32 -typedef struct { - CLIB_CACHE_LINE_ALIGN_MARK(cacheline0); +typedef struct +{ + CLIB_CACHE_LINE_ALIGN_MARK (cacheline0); u64 head; u64 head_hint; u64 tail; @@ -677,8 +712,17 @@ typedef struct { i32 n_vectors[FRAME_QUEUE_MAX_NELTS]; } frame_queue_trace_t; -typedef struct { +typedef struct +{ u64 count[FRAME_QUEUE_MAX_NELTS]; } frame_queue_nelt_counter_t; #endif /* included_vlib_node_h */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |