summaryrefslogtreecommitdiffstats
path: root/vnet/vnet/classify/vnet_classify.h
diff options
context:
space:
mode:
Diffstat (limited to 'vnet/vnet/classify/vnet_classify.h')
-rw-r--r--vnet/vnet/classify/vnet_classify.h523
1 files changed, 0 insertions, 523 deletions
diff --git a/vnet/vnet/classify/vnet_classify.h b/vnet/vnet/classify/vnet_classify.h
deleted file mode 100644
index d0b896ed7d2..00000000000
--- a/vnet/vnet/classify/vnet_classify.h
+++ /dev/null
@@ -1,523 +0,0 @@
-/*
- * Copyright (c) 2015 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-#ifndef __included_vnet_classify_h__
-#define __included_vnet_classify_h__
-
-#include <stdarg.h>
-
-#include <vlib/vlib.h>
-#include <vnet/vnet.h>
-#include <vnet/pg/pg.h>
-#include <vnet/ethernet/ethernet.h>
-#include <vnet/ethernet/packet.h>
-#include <vnet/ip/ip_packet.h>
-#include <vnet/ip/ip4_packet.h>
-#include <vnet/ip/ip6_packet.h>
-#include <vlib/cli.h>
-#include <vnet/l2/l2_input.h>
-#include <vnet/l2/feat_bitmap.h>
-#include <vnet/api_errno.h> /* for API error numbers */
-
-#include <vppinfra/error.h>
-#include <vppinfra/hash.h>
-#include <vppinfra/cache.h>
-#include <vppinfra/xxhash.h>
-
-extern vlib_node_registration_t ip4_classify_node;
-extern vlib_node_registration_t ip6_classify_node;
-
-#define CLASSIFY_TRACE 0
-
-#if !defined( __aarch64__) && !defined(__arm__)
-#define CLASSIFY_USE_SSE //Allow usage of SSE operations
-#endif
-
-#define U32X4_ALIGNED(p) PREDICT_TRUE((((intptr_t)p) & 0xf) == 0)
-
-/*
- * Classify table option to process packets
- * CLASSIFY_FLAG_USE_CURR_DATA:
- * - classify packets starting from VPP node’s current data pointer
- */
-#define CLASSIFY_FLAG_USE_CURR_DATA 1
-
-/*
- * Classify session action
- * CLASSIFY_ACTION_SET_IP4_FIB_INDEX:
- * - Classified IP packets will be looked up
- * from the specified ipv4 fib table
- * CLASSIFY_ACTION_SET_IP6_FIB_INDEX:
- * - Classified IP packets will be looked up
- * from the specified ipv6 fib table
- */
-#define CLASSIFY_ACTION_SET_IP4_FIB_INDEX 1
-#define CLASSIFY_ACTION_SET_IP6_FIB_INDEX 2
-
-struct _vnet_classify_main;
-typedef struct _vnet_classify_main vnet_classify_main_t;
-
-#define foreach_size_in_u32x4 \
-_(1) \
-_(2) \
-_(3) \
-_(4) \
-_(5)
-
-typedef CLIB_PACKED(struct _vnet_classify_entry {
- /* Graph node next index */
- u32 next_index;
-
- /* put into vnet_buffer(b)->l2_classfy.opaque_index */
- union {
- struct {
- u32 opaque_index;
- /* advance on hit, note it's a signed quantity... */
- i32 advance;
- };
- u64 opaque_count;
- };
-
- /* Really only need 1 bit */
- u8 flags;
-#define VNET_CLASSIFY_ENTRY_FREE (1<<0)
-
- u8 action;
- u16 metadata;
-
- /* Hit counter, last heard time */
- union {
- u64 hits;
- struct _vnet_classify_entry * next_free;
- };
-
- f64 last_heard;
-
- /* Must be aligned to a 16-octet boundary */
- u32x4 key[0];
-}) vnet_classify_entry_t;
-
-static inline int vnet_classify_entry_is_free (vnet_classify_entry_t * e)
-{
- return e->flags & VNET_CLASSIFY_ENTRY_FREE;
-}
-
-static inline int vnet_classify_entry_is_busy (vnet_classify_entry_t * e)
-{
- return ((e->flags & VNET_CLASSIFY_ENTRY_FREE) == 0);
-}
-
-/* Need these to con the vector allocator */
-#define _(size) \
-typedef CLIB_PACKED(struct { \
- u32 pad0[4]; \
- u64 pad1[2]; \
- u32x4 key[size]; \
-}) vnet_classify_entry_##size##_t;
-foreach_size_in_u32x4;
-#undef _
-
-typedef struct {
- union {
- struct {
- u32 offset;
- u8 pad[3];
- u8 log2_pages;
- };
- u64 as_u64;
- };
-} vnet_classify_bucket_t;
-
-typedef struct {
- /* Mask to apply after skipping N vectors */
- u32x4 *mask;
- /* Buckets and entries */
- vnet_classify_bucket_t * buckets;
- vnet_classify_entry_t * entries;
-
- /* Config parameters */
- u32 match_n_vectors;
- u32 skip_n_vectors;
- u32 nbuckets;
- u32 log2_nbuckets;
- int entries_per_page;
- u32 active_elements;
- u32 current_data_flag;
- int current_data_offset;
- u32 data_offset;
- /* Index of next table to try */
- u32 next_table_index;
-
- /* Miss next index, return if next_table_index = 0 */
- u32 miss_next_index;
-
- /* Per-bucket working copies, one per thread */
- vnet_classify_entry_t ** working_copies;
- vnet_classify_bucket_t saved_bucket;
-
- /* 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 */
- volatile u32 * writer_lock;
-
-} vnet_classify_table_t;
-
-struct _vnet_classify_main {
- /* Table pool */
- vnet_classify_table_t * tables;
-
- /* Registered next-index, opaque unformat fcns */
- unformat_function_t ** unformat_l2_next_index_fns;
- unformat_function_t ** unformat_ip_next_index_fns;
- unformat_function_t ** unformat_acl_next_index_fns;
- unformat_function_t ** unformat_policer_next_index_fns;
- unformat_function_t ** unformat_opaque_index_fns;
-
- /* convenience variables */
- vlib_main_t * vlib_main;
- vnet_main_t * vnet_main;
-};
-
-extern vnet_classify_main_t vnet_classify_main;
-
-u8 * format_classify_table (u8 * s, va_list * args);
-
-u64 vnet_classify_hash_packet (vnet_classify_table_t * t, u8 * h);
-
-static inline u64
-vnet_classify_hash_packet_inline (vnet_classify_table_t * t,
- u8 * h)
-{
- u32x4 *mask;
-
- union {
- u32x4 as_u32x4;
- u64 as_u64[2];
- } xor_sum __attribute__((aligned(sizeof(u32x4))));
-
- ASSERT(t);
- mask = t->mask;
-#ifdef CLASSIFY_USE_SSE
- if (U32X4_ALIGNED(h)) { //SSE can't handle unaligned data
- u32x4 *data = (u32x4 *)h;
- xor_sum.as_u32x4 = data[0 + t->skip_n_vectors] & mask[0];
- switch (t->match_n_vectors)
- {
- case 5:
- xor_sum.as_u32x4 ^= data[4 + t->skip_n_vectors] & mask[4];
- /* FALLTHROUGH */
- case 4:
- xor_sum.as_u32x4 ^= data[3 + t->skip_n_vectors] & mask[3];
- /* FALLTHROUGH */
- case 3:
- xor_sum.as_u32x4 ^= data[2 + t->skip_n_vectors] & mask[2];
- /* FALLTHROUGH */
- case 2:
- xor_sum.as_u32x4 ^= data[1 + t->skip_n_vectors] & mask[1];
- /* FALLTHROUGH */
- case 1:
- break;
- default:
- abort();
- }
- } else
-#endif /* CLASSIFY_USE_SSE */
- {
- u32 skip_u64 = t->skip_n_vectors * 2;
- u64 *data64 = (u64 *)h;
- xor_sum.as_u64[0] = data64[0 + skip_u64] & ((u64 *)mask)[0];
- xor_sum.as_u64[1] = data64[1 + skip_u64] & ((u64 *)mask)[1];
- switch (t->match_n_vectors)
- {
- case 5:
- xor_sum.as_u64[0] ^= data64[8 + skip_u64] & ((u64 *)mask)[8];
- xor_sum.as_u64[1] ^= data64[9 + skip_u64] & ((u64 *)mask)[9];
- /* FALLTHROUGH */
- case 4:
- xor_sum.as_u64[0] ^= data64[6 + skip_u64] & ((u64 *)mask)[6];
- xor_sum.as_u64[1] ^= data64[7 + skip_u64] & ((u64 *)mask)[7];
- /* FALLTHROUGH */
- case 3:
- xor_sum.as_u64[0] ^= data64[4 + skip_u64] & ((u64 *)mask)[4];
- xor_sum.as_u64[1] ^= data64[5 + skip_u64] & ((u64 *)mask)[5];
- /* FALLTHROUGH */
- case 2:
- xor_sum.as_u64[0] ^= data64[2 + skip_u64] & ((u64 *)mask)[2];
- xor_sum.as_u64[1] ^= data64[3 + skip_u64] & ((u64 *)mask)[3];
- /* FALLTHROUGH */
- case 1:
- break;
-
- default:
- abort();
- }
- }
-
- return clib_xxhash (xor_sum.as_u64[0] ^ xor_sum.as_u64[1]);
-}
-
-static inline void
-vnet_classify_prefetch_bucket (vnet_classify_table_t * t, u64 hash)
-{
- u32 bucket_index;
-
- ASSERT (is_pow2(t->nbuckets));
-
- bucket_index = hash & (t->nbuckets - 1);
-
- CLIB_PREFETCH(&t->buckets[bucket_index], CLIB_CACHE_LINE_BYTES, LOAD);
-}
-
-static inline vnet_classify_entry_t *
-vnet_classify_get_entry (vnet_classify_table_t * t, uword offset)
-{
- u8 * hp = t->mheap;
- u8 * vp = hp + offset;
-
- return (void *) vp;
-}
-
-static inline uword vnet_classify_get_offset (vnet_classify_table_t * t,
- vnet_classify_entry_t * v)
-{
- u8 * hp, * vp;
-
- hp = (u8 *) t->mheap;
- vp = (u8 *) v;
-
- ASSERT((vp - hp) < 0x100000000ULL);
- return vp - hp;
-}
-
-static inline vnet_classify_entry_t *
-vnet_classify_entry_at_index (vnet_classify_table_t * t,
- vnet_classify_entry_t * e,
- u32 index)
-{
- u8 * eu8;
-
- eu8 = (u8 *)e;
-
- eu8 += index * (sizeof (vnet_classify_entry_t) +
- (t->match_n_vectors * sizeof (u32x4)));
-
- return (vnet_classify_entry_t *) eu8;
-}
-
-static inline void
-vnet_classify_prefetch_entry (vnet_classify_table_t * t,
- u64 hash)
-{
- u32 bucket_index;
- u32 value_index;
- vnet_classify_bucket_t * b;
- vnet_classify_entry_t * e;
-
- bucket_index = hash & (t->nbuckets - 1);
-
- b = &t->buckets[bucket_index];
-
- if (b->offset == 0)
- return;
-
- hash >>= t->log2_nbuckets;
-
- e = vnet_classify_get_entry (t, b->offset);
- value_index = hash & ((1<<b->log2_pages)-1);
-
- e = vnet_classify_entry_at_index (t, e, value_index);
-
- CLIB_PREFETCH(e, CLIB_CACHE_LINE_BYTES, LOAD);
-}
-
-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_entry_t * v;
- u32x4 *mask, *key;
- union {
- u32x4 as_u32x4;
- u64 as_u64[2];
- } result __attribute__((aligned(sizeof(u32x4))));
- vnet_classify_bucket_t * b;
- u32 value_index;
- u32 bucket_index;
- int i;
-
- bucket_index = hash & (t->nbuckets-1);
- b = &t->buckets[bucket_index];
- mask = t->mask;
-
- if (b->offset == 0)
- return 0;
-
- hash >>= t->log2_nbuckets;
-
- v = vnet_classify_get_entry (t, b->offset);
- value_index = hash & ((1<<b->log2_pages)-1);
- v = vnet_classify_entry_at_index (t, v, value_index);
-
-#ifdef CLASSIFY_USE_SSE
- if (U32X4_ALIGNED(h)) {
- u32x4 *data = (u32x4 *) h;
- for (i = 0; i < t->entries_per_page; i++) {
- key = v->key;
- result.as_u32x4 = (data[0 + t->skip_n_vectors] & mask[0]) ^ key[0];
- switch (t->match_n_vectors)
- {
- case 5:
- result.as_u32x4 |= (data[4 + t->skip_n_vectors] & mask[4]) ^ key[4];
- /* FALLTHROUGH */
- case 4:
- result.as_u32x4 |= (data[3 + t->skip_n_vectors] & mask[3]) ^ key[3];
- /* FALLTHROUGH */
- case 3:
- result.as_u32x4 |= (data[2 + t->skip_n_vectors] & mask[2]) ^ key[2];
- /* FALLTHROUGH */
- case 2:
- result.as_u32x4 |= (data[1 + t->skip_n_vectors] & mask[1]) ^ key[1];
- /* FALLTHROUGH */
- case 1:
- break;
- default:
- abort();
- }
-
- if (u32x4_zero_byte_mask (result.as_u32x4) == 0xffff) {
- if (PREDICT_TRUE(now)) {
- v->hits++;
- v->last_heard = now;
- }
- return (v);
- }
- v = vnet_classify_entry_at_index (t, v, 1);
- }
- } else
-#endif /* CLASSIFY_USE_SSE */
- {
- u32 skip_u64 = t->skip_n_vectors * 2;
- u64 *data64 = (u64 *)h;
- for (i = 0; i < t->entries_per_page; i++) {
- key = v->key;
-
- result.as_u64[0] = (data64[0 + skip_u64] & ((u64 *)mask)[0]) ^ ((u64 *)key)[0];
- result.as_u64[1] = (data64[1 + skip_u64] & ((u64 *)mask)[1]) ^ ((u64 *)key)[1];
- switch (t->match_n_vectors)
- {
- case 5:
- result.as_u64[0] |= (data64[8 + skip_u64] & ((u64 *)mask)[8]) ^ ((u64 *)key)[8];
- result.as_u64[1] |= (data64[9 + skip_u64] & ((u64 *)mask)[9]) ^ ((u64 *)key)[9];
- /* FALLTHROUGH */
- case 4:
- result.as_u64[0] |= (data64[6 + skip_u64] & ((u64 *)mask)[6]) ^ ((u64 *)key)[6];
- result.as_u64[1] |= (data64[7 + skip_u64] & ((u64 *)mask)[7]) ^ ((u64 *)key)[7];
- /* FALLTHROUGH */
- case 3:
- result.as_u64[0] |= (data64[4 + skip_u64] & ((u64 *)mask)[4]) ^ ((u64 *)key)[4];
- result.as_u64[1] |= (data64[5 + skip_u64] & ((u64 *)mask)[5]) ^ ((u64 *)key)[5];
- /* FALLTHROUGH */
- case 2:
- result.as_u64[0] |= (data64[2 + skip_u64] & ((u64 *)mask)[2]) ^ ((u64 *)key)[2];
- result.as_u64[1] |= (data64[3 + skip_u64] & ((u64 *)mask)[3]) ^ ((u64 *)key)[3];
- /* FALLTHROUGH */
- case 1:
- break;
- default:
- abort();
- }
-
- if (result.as_u64[0] == 0 && result.as_u64[1] == 0) {
- if (PREDICT_TRUE(now)) {
- v->hits++;
- v->last_heard = now;
- }
- return (v);
- }
-
- v = vnet_classify_entry_at_index (t, v, 1);
- }
- }
- return 0;
- }
-
-vnet_classify_table_t *
-vnet_classify_new_table (vnet_classify_main_t *cm,
- 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 is_add,
- int del_chain);
-
-unformat_function_t unformat_ip4_mask;
-unformat_function_t unformat_ip6_mask;
-unformat_function_t unformat_l3_mask;
-unformat_function_t unformat_l2_mask;
-unformat_function_t unformat_classify_mask;
-unformat_function_t unformat_l2_next_index;
-unformat_function_t unformat_ip_next_index;
-unformat_function_t unformat_ip4_match;
-unformat_function_t unformat_ip6_match;
-unformat_function_t unformat_l3_match;
-unformat_function_t unformat_vlan_tag;
-unformat_function_t unformat_l2_match;
-unformat_function_t unformat_classify_match;
-
-void vnet_classify_register_unformat_ip_next_index_fn
-(unformat_function_t * fn);
-
-void vnet_classify_register_unformat_l2_next_index_fn
-(unformat_function_t * fn);
-
-void vnet_classify_register_unformat_acl_next_index_fn
-(unformat_function_t * fn);
-
-void vnet_classify_register_unformat_policer_next_index_fn
-(unformat_function_t * fn);
-
-void vnet_classify_register_unformat_opaque_index_fn (unformat_function_t * fn);
-
-#endif /* __included_vnet_classify_h__ */