diff options
Diffstat (limited to 'src/vnet/dpo/dpo.h')
| -rw-r--r-- | src/vnet/dpo/dpo.h | 53 |
1 files changed, 49 insertions, 4 deletions
diff --git a/src/vnet/dpo/dpo.h b/src/vnet/dpo/dpo.h index d3c2371c6dd..e5a9bdc1ca1 100644 --- a/src/vnet/dpo/dpo.h +++ b/src/vnet/dpo/dpo.h @@ -16,7 +16,7 @@ * @brief * A Data-Path Object is an object that represents actions that are * applied to packets are they are switched through VPP's data-path. - * + * * The DPO can be considered to be like is a base class that is specialised * by other objects to provide concreate actions * @@ -328,7 +328,7 @@ extern void dpo_stack(dpo_type_t child_type, const dpo_id_t *parent_dpo); /** - * @brief + * @brief * Set and stack a DPO. * The DPO passed is set to the parent DPO and the necessary * VLIB graph arcs are created, from the child_node passed. @@ -341,7 +341,7 @@ extern void dpo_stack(dpo_type_t child_type, * * @param parent_dpo * The parent DPO to stack onto. - */ + */ extern void dpo_stack_from_node(u32 child_node, dpo_id_t *dpo, const dpo_id_t *parent); @@ -443,7 +443,7 @@ typedef struct dpo_vft_t_ * (see above). * * @param type - * The type being registered. + * The type being registered. * * @param vft * The virtual function table to register for the type. @@ -497,4 +497,49 @@ dpo_get_next_node_by_type_and_proto (dpo_type_t child_type, dpo_proto_t child_proto, dpo_type_t parent_type, dpo_proto_t parent_proto); + + +/** + * @brief Barrier sync if a dpo pool is about to expand + * + * @param VM (output) + * vlib_main_t *, invariably &vlib_global_main + * + * @param P + * pool pointer + * + * @param YESNO (output) + * typically a u8, 1 => expand will occur, worker barrier held + * 0 => no expand, barrier not held + * + * @return YESNO set + */ + +#define dpo_pool_barrier_sync(VM,P,YESNO) \ +do { \ + pool_get_aligned_will_expand ((P), YESNO, CLIB_CACHE_LINE_BYTES); \ + \ + if (YESNO) \ + { \ + VM = vlib_get_main(); \ + ASSERT ((VM)->thread_index == 0); \ + vlib_worker_thread_barrier_sync((VM)); \ + } \ +} while(0); + +/** + * @brief Release barrier sync after dpo pool expansion + * + * @param VM + * vlib_main_t pointer, must be &vlib_global_main + * + * @param YESNO + * typically a u8, 1 => release required + * 0 => no release required + * @return none + */ + +#define dpo_pool_barrier_release(VM,YESNO) \ + if ((YESNO)) vlib_worker_thread_barrier_release((VM)); + #endif |