diff options
Diffstat (limited to 'src/vnet/classify/vnet_classify.h')
| -rw-r--r-- | src/vnet/classify/vnet_classify.h | 173 |
1 files changed, 103 insertions, 70 deletions
diff --git a/src/vnet/classify/vnet_classify.h b/src/vnet/classify/vnet_classify.h index 1ce29df5f13..dc2f8f16aa6 100644 --- a/src/vnet/classify/vnet_classify.h +++ b/src/vnet/classify/vnet_classify.h @@ -34,7 +34,11 @@ extern vlib_node_registration_t ip6_classify_node; * CLASSIFY_FLAG_USE_CURR_DATA: * - classify packets starting from VPP node’s current data pointer */ -#define CLASSIFY_FLAG_USE_CURR_DATA 1 +typedef enum vnet_classify_flags_t_ +{ + CLASSIFY_FLAG_NONE = 0, + CLASSIFY_FLAG_USE_CURR_DATA = (1 << 0), +} __clib_packed vnet_classify_flags_t; /* * Classify session action @@ -47,10 +51,11 @@ extern vlib_node_registration_t ip6_classify_node; */ typedef enum vnet_classify_action_t_ { + CLASSIFY_ACTION_NONE = 0, CLASSIFY_ACTION_SET_IP4_FIB_INDEX = 1, CLASSIFY_ACTION_SET_IP6_FIB_INDEX = 2, CLASSIFY_ACTION_SET_METADATA = 3, -} __attribute__ ((packed)) vnet_classify_action_t; +} __clib_packed vnet_classify_action_t; struct _vnet_classify_main; typedef struct _vnet_classify_main vnet_classify_main_t; @@ -62,20 +67,27 @@ _(3) \ _(4) \ _(5) -/* *INDENT-OFF* */ -typedef CLIB_PACKED(struct _vnet_classify_entry { - /* Graph node next index */ - u32 next_index; - +typedef struct _vnet_classify_entry +{ /* put into vnet_buffer(b)->l2_classfy.opaque_index */ - union { - struct { + union + { + struct + { u32 opaque_index; /* advance on hit, note it's a signed quantity... */ i32 advance; }; u64 opaque_count; }; + /* Hit counter */ + union + { + u64 hits; + struct _vnet_classify_entry *next_free; + }; + /* last heard time */ + f64 last_heard; /* Really only need 1 bit */ u8 flags; @@ -83,19 +95,17 @@ typedef CLIB_PACKED(struct _vnet_classify_entry { vnet_classify_action_t action; u16 metadata; - - /* Hit counter, last heard time */ - union { - u64 hits; - struct _vnet_classify_entry * next_free; - }; - - f64 last_heard; + /* Graph node next index */ + u32 next_index; /* Must be aligned to a 16-octet boundary */ u32x4 key[0]; -}) vnet_classify_entry_t; -/* *INDENT-ON* */ +} vnet_classify_entry_t; + +/** + * Check there's no padding in the entry. the key lies on a 16 byte boundary. + */ +STATIC_ASSERT_OFFSET_OF (vnet_classify_entry_t, key, 32); static inline int vnet_classify_entry_is_free (vnet_classify_entry_t * e) @@ -110,15 +120,13 @@ vnet_classify_entry_is_busy (vnet_classify_entry_t * e) } /* Need these to con the vector allocator */ -/* *INDENT-OFF* */ -#define _(size) \ -typedef CLIB_PACKED(struct { \ - u32 pad0[4]; \ - u64 pad1[2]; \ - u32x4 key[size]; \ -}) vnet_classify_entry_##size##_t; +#define _(size) \ + typedef struct \ + { \ + vnet_classify_entry_t e; \ + u32x4 key[size]; \ + } __clib_packed vnet_classify_entry_##size##_t; foreach_size_in_u32x4; -/* *INDENT-ON* */ #undef _ typedef struct @@ -141,27 +149,42 @@ typedef struct CLIB_CACHE_LINE_ALIGN_MARK (cacheline0); /* Mask to apply after skipping N vectors */ u32x4 *mask; - /* Buckets and entries */ + + /* hash Buckets */ vnet_classify_bucket_t *buckets; - vnet_classify_entry_t *entries; - /* Config parameters */ - u32 match_n_vectors; - u32 skip_n_vectors; + /* Private allocation arena, protected by the writer lock, + * where the entries are stored. */ + void *mheap; + + /* User/client data associated with the table */ + uword user_ctx; + u32 nbuckets; u32 log2_nbuckets; - u32 linear_buckets; - int entries_per_page; - u32 active_elements; - u32 current_data_flag; - int current_data_offset; - u32 data_offset; + u32 entries_per_page; + u32 skip_n_vectors; + u32 match_n_vectors; + /* Index of next table to try */ u32 next_table_index; + /* packet offsets */ + i16 current_data_offset; + vnet_classify_flags_t current_data_flag; /* Miss next index, return if next_table_index = 0 */ u32 miss_next_index; + /** + * All members accessed in the DP above here + */ + CLIB_CACHE_LINE_ALIGN_MARK (cacheline1); + + /* Config parameters */ + u32 linear_buckets; + u32 active_elements; + u32 data_offset; + /* Per-bucket working copies, one per thread */ vnet_classify_entry_t **working_copies; int *working_copy_lengths; @@ -170,16 +193,24 @@ typedef struct /* Free entry freelists */ vnet_classify_entry_t **freelists; - u8 *name; - - /* Private allocation arena, protected by the writer lock */ - void *mheap; - /* Writer (only) lock for this table */ clib_spinlock_t writer_lock; } vnet_classify_table_t; +/** + * Ensure DP fields don't spill over to cache-line 2 + */ +STATIC_ASSERT_OFFSET_OF (vnet_classify_table_t, cacheline1, + CLIB_CACHE_LINE_BYTES); + +/** + * The vector size for the classifier + * in the add/del table 'match' is the number of vectors of this size + */ +#define VNET_CLASSIFY_VECTOR_SIZE \ + sizeof (((vnet_classify_table_t *) 0)->mask[0]) + struct _vnet_classify_main { /* Table pool */ @@ -203,11 +234,20 @@ struct _vnet_classify_main extern vnet_classify_main_t vnet_classify_main; u8 *format_classify_table (u8 * s, va_list * args); +u8 *format_vnet_classify_table (u8 *s, va_list *args); u64 vnet_classify_hash_packet (vnet_classify_table_t * t, u8 * h); +static_always_inline vnet_classify_table_t * +vnet_classify_table_get (u32 table_index) +{ + vnet_classify_main_t *vcm = &vnet_classify_main; + + return (pool_elt_at_index (vcm->tables, table_index)); +} + static inline u64 -vnet_classify_hash_packet_inline (vnet_classify_table_t * t, u8 * h) +vnet_classify_hash_packet_inline (vnet_classify_table_t *t, const u8 *h) { u32x4 *mask; @@ -297,7 +337,7 @@ vnet_classify_get_entry (vnet_classify_table_t * t, uword offset) u8 *hp = clib_mem_get_heap_base (t->mheap); u8 *vp = hp + offset; - return (void *) vp; + return (vnet_classify_entry_t *) vp; } static inline uword @@ -356,8 +396,8 @@ vnet_classify_entry_t *vnet_classify_find_entry (vnet_classify_table_t * t, u8 * h, u64 hash, f64 now); static inline vnet_classify_entry_t * -vnet_classify_find_entry_inline (vnet_classify_table_t * t, - u8 * h, u64 hash, f64 now) +vnet_classify_find_entry_inline (vnet_classify_table_t *t, const u8 *h, + u64 hash, f64 now) { vnet_classify_entry_t *v; u32x4 *mask, *key; @@ -393,7 +433,7 @@ vnet_classify_find_entry_inline (vnet_classify_table_t * t, v = vnet_classify_entry_at_index (t, v, value_index); #ifdef CLIB_HAVE_VEC128 - u32x4u *data = (u32x4u *) h; + const u32x4u *data = (const u32x4u *) h; for (i = 0; i < limit; i++) { key = v->key; @@ -431,7 +471,7 @@ vnet_classify_find_entry_inline (vnet_classify_table_t * t, } #else u32 skip_u64 = t->skip_n_vectors * 2; - u64 *data64 = (u64 *) h; + const u64 *data64 = (const u64 *) h; for (i = 0; i < limit; i++) { key = v->key; @@ -488,32 +528,25 @@ vnet_classify_find_entry_inline (vnet_classify_table_t * t, return 0; } -vnet_classify_table_t *vnet_classify_new_table (vnet_classify_main_t * cm, - u8 * mask, u32 nbuckets, +vnet_classify_table_t *vnet_classify_new_table (vnet_classify_main_t *cm, + const u8 *mask, u32 nbuckets, u32 memory_size, u32 skip_n_vectors, u32 match_n_vectors); -int vnet_classify_add_del_session (vnet_classify_main_t * cm, - u32 table_index, - u8 * match, - u32 hit_next_index, - u32 opaque_index, - i32 advance, - u8 action, u32 metadata, int is_add); - -int vnet_classify_add_del_table (vnet_classify_main_t * cm, - u8 * mask, - u32 nbuckets, - u32 memory_size, - u32 skip, - u32 match, - u32 next_table_index, - u32 miss_next_index, - u32 * table_index, - u8 current_data_flag, - i16 current_data_offset, +int vnet_classify_add_del_session (vnet_classify_main_t *cm, u32 table_index, + const u8 *match, u32 hit_next_index, + u32 opaque_index, i32 advance, u8 action, + u16 metadata, int is_add); + +int vnet_classify_add_del_table (vnet_classify_main_t *cm, const u8 *mask, + u32 nbuckets, u32 memory_size, u32 skip, + u32 match, u32 next_table_index, + u32 miss_next_index, u32 *table_index, + u8 current_data_flag, i16 current_data_offset, int is_add, int del_chain); +void vnet_classify_delete_table_index (vnet_classify_main_t *cm, + u32 table_index, int del_chain); unformat_function_t unformat_ip4_mask; unformat_function_t unformat_ip6_mask; |