diff options
Diffstat (limited to 'src/vnet/l2/l2_fib.c')
| -rw-r--r-- | src/vnet/l2/l2_fib.c | 857 |
1 files changed, 857 insertions, 0 deletions
diff --git a/src/vnet/l2/l2_fib.c b/src/vnet/l2/l2_fib.c new file mode 100644 index 00000000000..d34836e33d0 --- /dev/null +++ b/src/vnet/l2/l2_fib.c @@ -0,0 +1,857 @@ +/* + * l2_fib.c : 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. + */ + + +#include <vlib/vlib.h> +#include <vnet/vnet.h> +#include <vnet/pg/pg.h> +#include <vnet/ethernet/ethernet.h> +#include <vlib/cli.h> + +#include <vppinfra/error.h> +#include <vppinfra/hash.h> +#include <vnet/l2/l2_input.h> +#include <vnet/l2/l2_fib.h> +#include <vnet/l2/l2_learn.h> +#include <vnet/l2/l2_bd.h> + +#include <vppinfra/bihash_template.c> + +/** + * @file + * @brief Ethernet MAC Address FIB Table Management. + * + * The MAC Address forwarding table for bridge-domains is called the l2fib. + * Entries are added automatically as part of mac learning, but MAC Addresses + * entries can also be added manually. + * + */ + +typedef struct +{ + + /* hash table */ + BVT (clib_bihash) mac_table; + + /* convenience variables */ + vlib_main_t *vlib_main; + vnet_main_t *vnet_main; +} l2fib_main_t; + +l2fib_main_t l2fib_main; + + +/** Format sw_if_index. If the value is ~0, use the text "N/A" */ +u8 * +format_vnet_sw_if_index_name_with_NA (u8 * s, va_list * args) +{ + vnet_main_t *vnm = va_arg (*args, vnet_main_t *); + u32 sw_if_index = va_arg (*args, u32); + if (sw_if_index == ~0) + return format (s, "N/A"); + else + return format (s, "%U", + format_vnet_sw_interface_name, vnm, + vnet_get_sw_interface (vnm, sw_if_index)); +} + +void +l2fib_table_dump (u32 bd_index, l2fib_entry_key_t ** l2fe_key, + l2fib_entry_result_t ** l2fe_res) +{ + l2fib_main_t *msm = &l2fib_main; + BVT (clib_bihash) * h = &msm->mac_table; + clib_bihash_bucket_t *b; + BVT (clib_bihash_value) * v; + l2fib_entry_key_t key; + l2fib_entry_result_t result; + int i, j, k; + + for (i = 0; i < h->nbuckets; i++) + { + b = &h->buckets[i]; + if (b->offset == 0) + continue; + v = BV (clib_bihash_get_value) (h, b->offset); + for (j = 0; j < (1 << b->log2_pages); j++) + { + for (k = 0; k < BIHASH_KVP_PER_PAGE; k++) + { + if (v->kvp[k].key == ~0ULL && v->kvp[k].value == ~0ULL) + continue; + + key.raw = v->kvp[k].key; + result.raw = v->kvp[k].value; + + if ((bd_index == ~0) || (bd_index == key.fields.bd_index)) + { + vec_add1 (*l2fe_key, key); + vec_add1 (*l2fe_res, result); + } + } + v++; + } + } +} + +/** Display the contents of the l2fib. */ +static clib_error_t * +show_l2fib (vlib_main_t * vm, + unformat_input_t * input, vlib_cli_command_t * cmd) +{ + bd_main_t *bdm = &bd_main; + l2fib_main_t *msm = &l2fib_main; + l2_bridge_domain_t *bd_config; + BVT (clib_bihash) * h = &msm->mac_table; + clib_bihash_bucket_t *b; + BVT (clib_bihash_value) * v; + l2fib_entry_key_t key; + l2fib_entry_result_t result; + u32 first_entry = 1; + u64 total_entries = 0; + int i, j, k; + u8 verbose = 0; + u8 raw = 0; + u32 bd_id, bd_index = ~0; + u8 now = (u8) (vlib_time_now (vm) / 60); + u8 *s = 0; + + if (unformat (input, "raw")) + raw = 1; + else if (unformat (input, "verbose")) + verbose = 1; + else if (unformat (input, "bd_index %d", &bd_index)) + verbose = 1; + else if (unformat (input, "bd_id %d", &bd_id)) + { + uword *p = hash_get (bdm->bd_index_by_bd_id, bd_id); + if (p) + { + verbose = 1; + bd_index = p[0]; + } + else + { + vlib_cli_output (vm, "no such bridge domain id"); + return 0; + } + } + + for (i = 0; i < h->nbuckets; i++) + { + b = &h->buckets[i]; + if (b->offset == 0) + continue; + v = BV (clib_bihash_get_value) (h, b->offset); + for (j = 0; j < (1 << b->log2_pages); j++) + { + for (k = 0; k < BIHASH_KVP_PER_PAGE; k++) + { + if (v->kvp[k].key == ~0ULL && v->kvp[k].value == ~0ULL) + continue; + + if (verbose && first_entry) + { + first_entry = 0; + vlib_cli_output (vm, + "%=19s%=7s%=30s%=7s%=8s%=8s%=5s%=16s", + "Mac Address", "BD Idx", "Interface", + "Index", "static", "filter", "bvi", + "Mac Age (min)"); + } + + key.raw = v->kvp[k].key; + result.raw = v->kvp[k].value; + + if (verbose + & ((bd_index >> 31) || (bd_index == key.fields.bd_index))) + { + bd_config = vec_elt_at_index (l2input_main.bd_configs, + key.fields.bd_index); + + if (bd_config->mac_age) + { + i16 delta = now - result.fields.timestamp; + delta += delta < 0 ? 256 : 0; + s = format (s, "%d", delta); + } + else + s = format (s, "disabled"); + + vlib_cli_output (vm, + "%=19U%=7d%=30U%=7d%=8d%=8d%=5d%=16v", + format_ethernet_address, key.fields.mac, + key.fields.bd_index, + format_vnet_sw_if_index_name_with_NA, + msm->vnet_main, result.fields.sw_if_index, + result.fields.sw_if_index == ~0 + ? -1 : result.fields.sw_if_index, + result.fields.static_mac, + result.fields.filter, + result.fields.bvi, s); + vec_reset_length (s); + } + total_entries++; + } + v++; + } + } + + if (total_entries == 0) + vlib_cli_output (vm, "no l2fib entries"); + else + vlib_cli_output (vm, "%lld l2fib entries", total_entries); + + if (raw) + vlib_cli_output (vm, "Raw Hash Table:\n%U\n", + BV (format_bihash), h, 1 /* verbose */ ); + + vec_free (s); + return 0; +} + +/*? + * This command dispays the MAC Address entries of the L2 FIB table. + * Output can be filtered to just get the number of MAC Addresses or display + * each MAC Address for all bridge domains or just a single bridge domain. + * + * @cliexpar + * Example of how to display the number of MAC Address entries in the L2 + * FIB table: + * @cliexstart{show l2fib} + * 3 l2fib entries + * @cliexend + * Example of how to display all the MAC Address entries in the L2 + * FIB table: + * @cliexstart{show l2fib verbose} + * Mac Address BD Idx Interface Index static filter bvi refresh timestamp + * 52:54:00:53:18:33 1 GigabitEthernet0/8/0.200 3 0 0 0 0 0 + * 52:54:00:53:18:55 1 GigabitEthernet0/8/0.200 3 1 0 0 0 0 + * 52:54:00:53:18:77 1 N/A -1 1 1 0 0 0 + * 3 l2fib entries + * @cliexend +?*/ +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (show_l2fib_cli, static) = { + .path = "show l2fib", + .short_help = "show l2fib [verbose | bd_id <nn> | bd_index <nn> | raw]", + .function = show_l2fib, +}; +/* *INDENT-ON* */ + + +/* Remove all entries from the l2fib */ +void +l2fib_clear_table (uint keep_static) +{ + l2fib_main_t *mp = &l2fib_main; + + if (keep_static) + { + /* TODO: remove only non-static entries */ + } + else + { + /* Remove all entries */ + BV (clib_bihash_free) (&mp->mac_table); + BV (clib_bihash_init) (&mp->mac_table, "l2fib mac table", + L2FIB_NUM_BUCKETS, L2FIB_MEMORY_SIZE); + } + + l2learn_main.global_learn_count = 0; +} + +/** Clear all entries in L2FIB. + * @TODO: Later we may want a way to remove only the non-static entries + */ +static clib_error_t * +clear_l2fib (vlib_main_t * vm, + unformat_input_t * input, vlib_cli_command_t * cmd) +{ + l2fib_clear_table (0); + return 0; +} + +/*? + * This command clears all the MAC Address entries from the L2 FIB table. + * + * @cliexpar + * Example of how to clear the L2 FIB Table: + * @cliexcmd{clear l2fib} + * Example to show the L2 FIB Table has been cleared: + * @cliexstart{show l2fib verbose} + * no l2fib entries + * @cliexend +?*/ +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (clear_l2fib_cli, static) = { + .path = "clear l2fib", + .short_help = "clear l2fib", + .function = clear_l2fib, +}; +/* *INDENT-ON* */ + + +/** + * Add an entry to the l2fib. + * If the entry already exists then overwrite it + */ +void +l2fib_add_entry (u64 mac, + u32 bd_index, + u32 sw_if_index, u32 static_mac, u32 filter_mac, u32 bvi_mac) +{ + l2fib_entry_key_t key; + l2fib_entry_result_t result; + __attribute__ ((unused)) u32 bucket_contents; + l2fib_main_t *mp = &l2fib_main; + BVT (clib_bihash_kv) kv; + + /* set up key */ + key.raw = l2fib_make_key ((u8 *) & mac, bd_index); + + /* set up result */ + result.raw = 0; /* clear all fields */ + result.fields.sw_if_index = sw_if_index; + result.fields.static_mac = static_mac; + result.fields.filter = filter_mac; + result.fields.bvi = bvi_mac; + + kv.key = key.raw; + kv.value = result.raw; + + BV (clib_bihash_add_del) (&mp->mac_table, &kv, 1 /* is_add */ ); + + /* increment counter if dynamically learned mac */ + if (result.fields.static_mac) + { + l2learn_main.global_learn_count++; + } +} + +/** + * Add an entry to the L2FIB. + * The CLI format is: + * l2fib add <mac> <bd> <intf> [static] [bvi] + * l2fib add <mac> <bd> filter + * Note that filter and bvi entries are always static + */ +static clib_error_t * +l2fib_add (vlib_main_t * vm, + unformat_input_t * input, vlib_cli_command_t * cmd) +{ + bd_main_t *bdm = &bd_main; + vnet_main_t *vnm = vnet_get_main (); + clib_error_t *error = 0; + u64 mac; + u32 bd_id; + u32 bd_index; + u32 sw_if_index = ~0; + u32 filter_mac = 0; + u32 static_mac = 0; + u32 bvi_mac = 0; + uword *p; + + if (!unformat_user (input, unformat_ethernet_address, &mac)) + { + error = clib_error_return (0, "expected mac address `%U'", + format_unformat_error, input); + goto done; + } + + if (!unformat (input, "%d", &bd_id)) + { + error = clib_error_return (0, "expected bridge domain ID `%U'", + format_unformat_error, input); + goto done; + } + + p = hash_get (bdm->bd_index_by_bd_id, bd_id); + if (!p) + { + error = clib_error_return (0, "bridge domain ID %d invalid", bd_id); + goto done; + } + bd_index = p[0]; + + if (unformat (input, "filter")) + { + filter_mac = 1; + static_mac = 1; + + } + else + { + + if (!unformat_user + (input, unformat_vnet_sw_interface, vnm, &sw_if_index)) + { + error = clib_error_return (0, "unknown interface `%U'", + format_unformat_error, input); + goto done; + } + if (unformat (input, "static")) + { + static_mac = 1; + } + else if (unformat (input, "bvi")) + { + bvi_mac = 1; + static_mac = 1; + } + } + + l2fib_add_entry (mac, bd_index, sw_if_index, static_mac, filter_mac, + bvi_mac); + +done: + return error; +} + +/*? + * This command adds a MAC Address entry to the L2 FIB table + * of an existing bridge-domain. The MAC Address can be static + * or dynamic. This command also allows a filter to be added, + * such that packets with given MAC Addresses (source mac or + * destination mac match) are dropped. + * + * @cliexpar + * Example of how to add a dynamic MAC Address entry to the L2 FIB table + * of a bridge-domain (where 200 is the bridge-domain-id): + * @cliexcmd{l2fib add 52:54:00:53:18:33 200 GigabitEthernet0/8/0.200} + * Example of how to add a static MAC Address entry to the L2 FIB table + * of a bridge-domain (where 200 is the bridge-domain-id): + * @cliexcmd{l2fib add 52:54:00:53:18:55 200 GigabitEthernet0/8/0.200 static} + * Example of how to add a filter such that a packet with the given MAC + * Address will be dropped in a given bridge-domain (where 200 is the + * bridge-domain-id): + * @cliexcmd{l2fib add 52:54:00:53:18:77 200 filter} + * Example of show command of the provisioned MAC Addresses and filters: + * @cliexstart{show l2fib verbose} + * Mac Address BD Idx Interface Index static filter bvi refresh timestamp + * 52:54:00:53:18:33 1 GigabitEthernet0/8/0.200 3 0 0 0 0 0 + * 52:54:00:53:18:55 1 GigabitEthernet0/8/0.200 3 1 0 0 0 0 + * 52:54:00:53:18:77 1 N/A -1 1 1 0 0 0 + * 3 l2fib entries + * @cliexend +?*/ +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (l2fib_add_cli, static) = { + .path = "l2fib add", + .short_help = "l2fib add <mac> <bridge-domain-id> filter | <intf> [static | bvi]", + .function = l2fib_add, +}; +/* *INDENT-ON* */ + + +static clib_error_t * +l2fib_test_command_fn (vlib_main_t * vm, + unformat_input_t * input, vlib_cli_command_t * cmd) +{ + clib_error_t *error = 0; + u64 mac, save_mac; + u32 bd_index = 0; + u32 sw_if_index = 8; + u32 filter_mac = 0; + u32 bvi_mac = 0; + u32 is_add = 0; + u32 is_del = 0; + u32 is_check = 0; + u32 count = 1; + int mac_set = 0; + int i; + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "mac %U", unformat_ethernet_address, &mac)) + mac_set = 1; + else if (unformat (input, "add")) + is_add = 1; + else if (unformat (input, "del")) + is_del = 1; + else if (unformat (input, "check")) + is_check = 1; + else if (unformat (input, "count %d", &count)) + ; + else + break; + } + + if (mac_set == 0) + return clib_error_return (0, "mac not set"); + + if (is_add == 0 && is_del == 0 && is_check == 0) + return clib_error_return (0, + "noop: pick at least one of (add,del,check)"); + + save_mac = mac; + + if (is_add) + { + for (i = 0; i < count; i++) + { + u64 tmp; + l2fib_add_entry (mac, bd_index, sw_if_index, mac, + filter_mac, bvi_mac); + tmp = clib_net_to_host_u64 (mac); + tmp >>= 16; + tmp++; + tmp <<= 16; + mac = clib_host_to_net_u64 (tmp); + } + } + + if (is_check) + { + BVT (clib_bihash_kv) kv; + l2fib_main_t *mp = &l2fib_main; + + mac = save_mac; + + for (i = 0; i < count; i++) + { + u64 tmp; + kv.key = l2fib_make_key ((u8 *) & mac, bd_index); + if (BV (clib_bihash_search) (&mp->mac_table, &kv, &kv)) + { + clib_warning ("key %U AWOL", format_ethernet_address, &mac); + break; + } + tmp = clib_net_to_host_u64 (mac); + tmp >>= 16; + tmp++; + tmp <<= 16; + mac = clib_host_to_net_u64 (tmp); + } + } + + if (is_del) + { + for (i = 0; i < count; i++) + { + u64 tmp; + + l2fib_del_entry (mac, bd_index); + + tmp = clib_net_to_host_u64 (mac); + tmp >>= 16; + tmp++; + tmp <<= 16; + mac = clib_host_to_net_u64 (tmp); + } + } + + return error; +} + +/*? + * The set of '<em>test l2fib</em>' commands allow the L2 FIB table of the default + * bridge domain (bridge-domain-id of 0) to be modified. + * + * @cliexpar + * @parblock + * Example of how to add a set of 4 sequential MAC Address entries to L2 + * FIB table of the default bridge-domain: + * @cliexcmd{test l2fib add mac 52:54:00:53:00:00 count 4} + * + * Show the set of 4 sequential MAC Address entries that were added: + * @cliexstart{show l2fib verbose} + * Mac Address BD Idx Interface Index static filter bvi refresh timestamp + * 52:54:00:53:00:00 0 GigabitEthernet0/8/0.300 8 0 0 0 0 0 + * 52:54:00:53:00:01 0 GigabitEthernet0/8/0.300 8 0 0 0 0 0 + * 52:54:00:53:00:03 0 GigabitEthernet0/8/0.300 8 0 0 0 0 0 + * 52:54:00:53:00:02 0 GigabitEthernet0/8/0.300 8 0 0 0 0 0 + * 4 l2fib entries + * @cliexend + * + * Example of how to check that the set of 4 sequential MAC Address + * entries were added to L2 FIB table of the default + * bridge-domain. Used a count of 5 to produce an error: + * + * @cliexcmd{test l2fib check mac 52:54:00:53:00:00 count 5} + * The output of the check command is in the log files. Log file + * location may vary based on your OS and Version: + * + * <b><em># tail -f /var/log/messages | grep l2fib_test_command_fn</em></b> + * + * Sep 7 17:15:24 localhost vnet[4952]: l2fib_test_command_fn:446: key 52:54:00:53:00:04 AWOL + * + * Example of how to delete a set of 4 sequential MAC Address entries + * from L2 FIB table of the default bridge-domain: + * @cliexcmd{test l2fib del mac 52:54:00:53:00:00 count 4} + * @endparblock +?*/ +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (l2fib_test_command, static) = { + .path = "test l2fib", + .short_help = "test l2fib [add|del|check] mac <base-addr> count <nn>", + .function = l2fib_test_command_fn, +}; +/* *INDENT-ON* */ + + +/** + * Delete an entry from the l2fib. + * Return 0 if the entry was deleted, or 1 if it was not found + */ +u32 +l2fib_del_entry (u64 mac, u32 bd_index) +{ + + l2fib_entry_result_t result; + l2fib_main_t *mp = &l2fib_main; + BVT (clib_bihash_kv) kv; + + /* set up key */ + kv.key = l2fib_make_key ((u8 *) & mac, bd_index); + + if (BV (clib_bihash_search) (&mp->mac_table, &kv, &kv)) + return 1; + + result.raw = kv.value; + + /* decrement counter if dynamically learned mac */ + if (result.fields.static_mac) + { + if (l2learn_main.global_learn_count > 0) + { + l2learn_main.global_learn_count--; + } + } + + /* Remove entry from hash table */ + BV (clib_bihash_add_del) (&mp->mac_table, &kv, 0 /* is_add */ ); + return 0; +} + +/** + * Delete an entry from the L2FIB. + * The CLI format is: + * l2fib del <mac> <bd-id> + */ +static clib_error_t * +l2fib_del (vlib_main_t * vm, + unformat_input_t * input, vlib_cli_command_t * cmd) +{ + bd_main_t *bdm = &bd_main; + clib_error_t *error = 0; + u64 mac; + u32 bd_id; + u32 bd_index; + uword *p; + + if (!unformat_user (input, unformat_ethernet_address, &mac)) + { + error = clib_error_return (0, "expected mac address `%U'", + format_unformat_error, input); + goto done; + } + + if (!unformat (input, "%d", &bd_id)) + { + error = clib_error_return (0, "expected bridge domain ID `%U'", + format_unformat_error, input); + goto done; + } + + p = hash_get (bdm->bd_index_by_bd_id, bd_id); + if (!p) + { + error = clib_error_return (0, "bridge domain ID %d invalid", bd_id); + goto done; + } + bd_index = p[0]; + + /* Delete the entry */ + if (l2fib_del_entry (mac, bd_index)) + { + error = clib_error_return (0, "mac entry not found"); + goto done; + } + +done: + return error; +} + +/*? + * This command deletes an existing MAC Address entry from the L2 FIB + * table of an existing bridge-domain. + * + * @cliexpar + * Example of how to delete a MAC Address entry from the L2 FIB table of a bridge-domain (where 200 is the bridge-domain-id): + * @cliexcmd{l2fib del 52:54:00:53:18:33 200} +?*/ +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (l2fib_del_cli, static) = { + .path = "l2fib del", + .short_help = "l2fib del <mac> <bridge-domain-id>", + .function = l2fib_del, +}; +/* *INDENT-ON* */ + + +BVT (clib_bihash) * get_mac_table (void) +{ + l2fib_main_t *mp = &l2fib_main; + return &mp->mac_table; +} + +static uword +l2fib_mac_age_scanner_process (vlib_main_t * vm, vlib_node_runtime_t * rt, + vlib_frame_t * f) +{ + uword event_type, *event_data = 0; + l2fib_main_t *msm = &l2fib_main; + l2_bridge_domain_t *bd_config; + BVT (clib_bihash) * h = &msm->mac_table; + clib_bihash_bucket_t *b; + BVT (clib_bihash_value) * v; + l2fib_entry_key_t key; + l2fib_entry_result_t result; + int i, j, k; + bool enabled = 0; + f64 start_time, last_run_duration = 0, t; + i16 delta; + + while (1) + { + if (enabled) + vlib_process_wait_for_event_or_clock (vm, 60 - last_run_duration); + else + vlib_process_wait_for_event (vm); + + event_type = vlib_process_get_events (vm, &event_data); + vec_reset_length (event_data); + + switch (event_type) + { + case ~0: + break; + case L2_MAC_AGE_PROCESS_EVENT_START: + enabled = 1; + break; + case L2_MAC_AGE_PROCESS_EVENT_STOP: + enabled = 0; + continue; + default: + ASSERT (0); + } + last_run_duration = start_time = vlib_time_now (vm); + for (i = 0; i < h->nbuckets; i++) + { + /* Allow no more than 10us without a pause */ + t = vlib_time_now (vm); + if (t > start_time + 10e-6) + { + vlib_process_suspend (vm, 100e-6); /* suspend for 100 us */ + start_time = vlib_time_now (vm); + } + + if (i < (h->nbuckets - 3)) + { + b = &h->buckets[i + 3]; + CLIB_PREFETCH (b, CLIB_CACHE_LINE_BYTES, LOAD); + b = &h->buckets[i + 1]; + if (b->offset) + { + v = BV (clib_bihash_get_value) (h, b->offset); + CLIB_PREFETCH (v, CLIB_CACHE_LINE_BYTES, LOAD); + } + } + + b = &h->buckets[i]; + if (b->offset == 0) + continue; + v = BV (clib_bihash_get_value) (h, b->offset); + for (j = 0; j < (1 << b->log2_pages); j++) + { + for (k = 0; k < BIHASH_KVP_PER_PAGE; k++) + { + if (v->kvp[k].key == ~0ULL && v->kvp[k].value == ~0ULL) + continue; + + key.raw = v->kvp[k].key; + result.raw = v->kvp[k].value; + + if (result.fields.static_mac) + continue; + + bd_config = vec_elt_at_index (l2input_main.bd_configs, + key.fields.bd_index); + + if (bd_config->mac_age == 0) + continue; + + delta = (u8) (start_time / 60) - result.fields.timestamp; + delta += delta < 0 ? 256 : 0; + + if (delta > bd_config->mac_age) + { + void *p = &key.fields.mac; + l2fib_del_entry (*(u64 *) p, key.fields.bd_index); + } + } + v++; + } + } + last_run_duration = vlib_time_now (vm) - last_run_duration; + } + return 0; +} + +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (l2fib_mac_age_scanner_process_node) = { + .function = l2fib_mac_age_scanner_process, + .type = VLIB_NODE_TYPE_PROCESS, + .name = "l2fib-mac-age-scanner-process", +}; +/* *INDENT-ON* */ + +clib_error_t * +l2fib_init (vlib_main_t * vm) +{ + l2fib_main_t *mp = &l2fib_main; + l2fib_entry_key_t test_key; + u8 test_mac[6]; + + mp->vlib_main = vm; + mp->vnet_main = vnet_get_main (); + + /* Create the hash table */ + BV (clib_bihash_init) (&mp->mac_table, "l2fib mac table", + L2FIB_NUM_BUCKETS, L2FIB_MEMORY_SIZE); + + /* verify the key constructor is good, since it is endian-sensitive */ + memset (test_mac, 0, sizeof (test_mac)); + test_mac[0] = 0x11; + test_key.raw = 0; + test_key.raw = l2fib_make_key ((u8 *) & test_mac, 0x1234); + ASSERT (test_key.fields.mac[0] == 0x11); + ASSERT (test_key.fields.bd_index == 0x1234); + + return 0; +} + +VLIB_INIT_FUNCTION (l2fib_init); + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |