vapi: init clib mem heap on connect if needed - vpp

diff options

author	Klement Sekera <ksekera@cisco.com>	2018-09-03 12:35:27 +0200
committer	Klement Sekera <ksekera@cisco.com>	2018-09-03 12:35:27 +0200
commit	7ff0a265a8b5692268c0f44385712c7be8e32775 (patch)
tree	83b8664d739dc22e3f83d141e09126b0a68da042 /src/plugins/nat/nat_api.c
parent	732021070fa0c731896ab3e29f802d3834c72ab7 (diff)

vapi: init clib mem heap on connect if needed

Change-Id: Id45a3a37dd77771289622314406dccf50b64f04d Signed-off-by: Klement Sekera <ksekera@cisco.com>

Diffstat (limited to 'src/plugins/nat/nat_api.c')

0 files changed, 0 insertions, 0 deletions

/* * l2_fib.h : layer 2 forwarding table (aka mac table) * * Copyright (c) 2013 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_l2fib_h #define included_l2fib_h #include <vlib/vlib.h> #include <vppinfra/bihash_8_8.h> /* * The size of the hash table */ #define L2FIB_NUM_BUCKETS (64 * 1024) #define L2FIB_MEMORY_SIZE (256<<20) /* Ager scan interval is 1 minute for aging */ #define L2FIB_AGE_SCAN_INTERVAL (60.0) /* MAC event scan delay is 100 msec unless specified by MAC event client */ #define L2FIB_EVENT_SCAN_DELAY_DEFAULT (0.1) /* Max MACs in a event message is 100 unless specified by MAC event client */ #define L2FIB_EVENT_MAX_MACS_DEFAULT (100) /* MAC event learn limit is 1000 unless specified by MAC event client */ #define L2FIB_EVENT_LEARN_LIMIT_DEFAULT (1000) typedef struct { /* hash table */ BVT (clib_bihash) mac_table; /* per swif vector of sequence number for interface based flush of MACs */ u8 *swif_seq_num; /* last event or ager scan duration */ f64 evt_scan_duration; f64 age_scan_duration; /* delay between event scans, default to 100 msec */ f64 event_scan_delay; /* max macs in evet message, default to 100 entries */ u32 max_macs_in_event; /* convenience variables */ vlib_main_t *vlib_main; vnet_main_t *vnet_main; } l2fib_main_t; extern l2fib_main_t l2fib_main; /* * The L2fib key is the mac address and bridge domain ID */ typedef struct { union { struct { u16 bd_index; u8 mac[6]; } fields; struct { u32 w0; u32 w1; } words; u64 raw; }; } l2fib_entry_key_t; STATIC_ASSERT_SIZEOF (l2fib_entry_key_t, 8); typedef struct { union { struct { u8 swif; u8 bd; }; u16 as_u16; }; } l2fib_seq_num_t; /* * The l2fib entry results */ typedef struct { union { struct { u32 sw_if_index; /* output sw_if_index (L3 intf if bvi==1) */ u8 static_mac:1; /* static mac, no MAC move */ u8 age_not:1; /* not subject to age */ u8 bvi:1; /* mac is for a bridged virtual interface */ u8 filter:1; /* drop packets to/from this mac */ u8 lrn_evt:1; /* MAC learned to be sent in L2 MAC event */ u8 unused:3; u8 timestamp; /* timestamp for aging */ l2fib_seq_num_t sn; /* bd/int seq num */ } fields; u64 raw; }; } l2fib_entry_result_t; STATIC_ASSERT_SIZEOF (l2fib_entry_result_t, 8); /** * Compute the hash for the given key and return * the corresponding bucket index */ always_inline u32 l2fib_compute_hash_bucket (l2fib_entry_key_t * key) { u32 result; u32 temp_a; u32 temp_b; result = 0xa5a5a5a5; /* some seed */ temp_a = key->words.w0; temp_b = key->words.w1; hash_mix32 (temp_a, temp_b, result); return result % L2FIB_NUM_BUCKETS; } always_inline u64 l2fib_make_key (u8 * mac_address, u16 bd_index) { u64 temp; /* * The mac address in memory is A:B:C:D:E:F * The bd id in register is H:L */ #if CLIB_ARCH_IS_LITTLE_ENDIAN /* * Create the in-register key as F:E:D:C:B:A:H:L * In memory the key is L:H:A:B:C:D:E:F */ temp = *((u64 *) (mac_address)) << 16; temp = (temp & ~0xffff) | (u64) (bd_index); #else /* * Create the in-register key as H:L:A:B:C:D:E:F * In memory the key is H:L:A:B:C:D:E:F */ temp = *((u64 *) (mac_address)) >> 16; temp = temp | (((u64) bd_index) << 48); #endif return temp; } /** * Lookup the entry for mac and bd_index in the mac table for 1 packet. * Cached_key and cached_result are used as a one-entry cache. * The function reads and updates them as needed. * * mac0 and bd_index0 are the keys. The entry is written to result0. * If the entry was not found, result0 is set to ~0. * * key0 and bucket0 return with the computed key and hash bucket, * convenient if the entry needs to be updated afterward. * If the cached_result was used, bucket0 is set to ~0. */ static_always_inline void l2fib_lookup_1 (BVT (clib_bihash) * mac_table, l2fib_entry_key_t * cached_key, l2fib_entry_result_t * cached_result, u8 * mac0, u16 bd_index0, l2fib_entry_key_t * key0, u32 * bucket0, l2fib_entry_result_t * result0) { /* set up key */ key0->raw = l2fib_make_key (mac0, bd_index0); *bucket0 = ~0; if (key0->raw == cached_key->raw) { /* Hit in the one-entry cache */ result0->raw = cached_result->raw; } else { /* Do a regular mac table lookup */ BVT (clib_bihash_kv) kv; kv.key = key0->raw; kv.value = ~0ULL; BV (clib_bihash_search_inline) (mac_table, &kv); result0->raw = kv.value; /* Update one-entry cache */ cached_key->raw = key0->raw; cached_result->raw = result0->raw; } } /** * Lookup the entry for mac and bd_index in the mac table for 2 packets. * The lookups for the two packets are interleaved. * * Cached_key and cached_result are used as a one-entry cache. * The function reads and updates them as needed. * * mac0 and bd_index0 are the keys. The entry is written to result0. * If the entry was not found, result0 is set to ~0. The same * holds for mac1/bd_index1/result1. */ static_always_inline void l2fib_lookup_2 (BVT (clib_bihash) * mac_table, l2fib_entry_key_t * cached_key, l2fib_entry_result_t * cached_result, u8 * mac0, u8 * mac1, u16 bd_index0, u16 bd_index1, l2fib_entry_key_t * key0, l2fib_entry_key_t * key1, u32 * bucket0, u32 * bucket1, l2fib_entry_result_t * result0, l2fib_entry_result_t * result1) { /* set up key */ key0->raw = l2fib_make_key (mac0, bd_index0); key1->raw = l2fib_make_key (mac1, bd_index1); if ((key0->raw == cached_key->raw) && (key1->raw == cached_key->raw)) { /* Both hit in the one-entry cache */ result0->raw = cached_result->raw; result1->raw = cached_result->raw; *bucket0 = ~0; *bucket1 = ~0; } else { BVT (clib_bihash_kv) kv0, kv1; /* * Do a regular mac table lookup * Interleave lookups for packet 0 and packet 1 */ kv0.key = key0->raw; kv1.key = key1->raw; kv0.value = ~0ULL; kv1.value = ~0ULL; BV (clib_bihash_search_inline) (mac_table, &kv0); BV (clib_bihash_search_inline) (mac_table, &kv1); result0->raw = kv0.value; result1->raw = kv1.value; /* Update one-entry cache */ cached_key->raw = key1->raw; cached_result->raw = result1->raw; } } static_always_inline void l2fib_lookup_4 (BVT (clib_bihash) * mac_table, l2fib_entry_key_t * cached_key, l2fib_entry_result_t * cached_result, u8 * mac0, u8 * mac1, u8 * mac2, u8 * mac3, u16 bd_index0, u16 bd_index1, u16 bd_index2, u16 bd_index3, l2fib_entry_key_t * key0, l2fib_entry_key_t * key1, l2fib_entry_key_t * key2, l2fib_entry_key_t * key3, u32 * bucket0, u32 * bucket1, u32 * bucket2, u32 * bucket3, l2fib_entry_result_t * result0, l2fib_entry_result_t * result1, l2fib_entry_result_t * result2, l2fib_entry_result_t * result3) { /* set up key */ key0->raw = l2fib_make_key (mac0, bd_index0); key1->raw = l2fib_make_key (mac1, bd_index1); key2->raw = l2fib_make_key (mac2, bd_index2); key3->raw = l2fib_make_key (mac3, bd_index3); if ((key0->raw == cached_key->raw) && (key1->raw == cached_key->raw) && (key2->raw == cached_key->raw) && (key3->raw == cached_key->raw)) { /* Both hit in the one-entry cache */ result0->raw = cached_result->raw; result1->raw = cached_result->raw; result2->raw = cached_result->raw; result3->raw = cached_result->raw; *bucket0 = ~0; *bucket1 = ~0; *bucket2 = ~0; *bucket3 = ~0; } else { BVT (clib_bihash_kv) kv0, kv1, kv2, kv3; /* * Do a regular mac table lookup * Interleave lookups for packet 0 and packet 1 */ kv0.key = key0->raw; kv1.key = key1->raw; kv2.key = key2->raw; kv3.key = key3->raw; kv0.value = ~0ULL; kv1.value = ~0ULL; kv2.value = ~0ULL; kv3.value = ~0ULL; BV (clib_bihash_search_inline) (mac_table, &kv0); BV (clib_bihash_search_inline) (mac_table, &kv1); BV (clib_bihash_search_inline) (mac_table, &kv2); BV (clib_bihash_search_inline) (mac_table, &kv3); result0->raw = kv0.value; result1->raw = kv1.value; result2->raw = kv2.value; result3->raw = kv3.value; /* Update one-entry cache */ cached_key->raw = key1->raw; cached_result->raw = result1->raw; } } void l2fib_clear_table (void); void l2fib_add_entry (u64 mac, u32 bd_index, u32 sw_if_index, u8 static_mac, u8 drop_mac, u8 bvi_mac); static inline void l2fib_add_fwd_entry (u64 mac, u32 bd_index, u32 sw_if_index, u8 static_mac, u8 bvi_mac) { l2fib_add_entry (mac, bd_index, sw_if_index, static_mac, 0, bvi_mac); } static inline void l2fib_add_filter_entry (u64 mac, u32 bd_index) { l2fib_add_entry (mac, bd_index, ~0, 1, 1, 0); } u32 l2fib_del_entry (u64 mac, u32 bd_index); void l2fib_start_ager_scan (vlib_main_t * vm); void l2fib_flush_int_mac (vlib_main_t * vm, u32 sw_if_index); void l2fib_flush_bd_mac (vlib_main_t * vm, u32 bd_index); void l2fib_flush_all_mac (vlib_main_t * vm); void l2fib_table_dump (u32 bd_index, l2fib_entry_key_t ** l2fe_key, l2fib_entry_result_t ** l2fe_res); u8 *format_vnet_sw_if_index_name_with_NA (u8 * s, va_list * args); static_always_inline u8 * l2fib_swif_seq_num (u32 sw_if_index) { l2fib_main_t *mp = &l2fib_main; return vec_elt_at_index (mp->swif_seq_num, sw_if_index); } static_always_inline u8 * l2fib_valid_swif_seq_num (u32 sw_if_index) { l2fib_main_t *mp = &l2fib_main; vec_validate (mp->swif_seq_num, sw_if_index); return l2fib_swif_seq_num (sw_if_index); } BVT (clib_bihash) * get_mac_table (void); #endif /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */


context:
space:
mode: