X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvnet%2Fl2%2Fl2_fib.c;h=4407cb5bc4c53ba223660888b38760bdab0e304f;hb=0f8d10035;hp=9e095d236cfd09828c9012a03363220458b4e03a;hpb=57938f63cc6743193c76d4fa89ad3250a5f76b56;p=vpp.git diff --git a/src/vnet/l2/l2_fib.c b/src/vnet/l2/l2_fib.c index 9e095d236cf..4407cb5bc4c 100644 --- a/src/vnet/l2/l2_fib.c +++ b/src/vnet/l2/l2_fib.c @@ -18,7 +18,6 @@ #include #include -#include #include #include @@ -54,6 +53,27 @@ l2fib_main_t l2fib_main; +u8 * +format_l2fib_entry_result_flags (u8 * s, va_list * args) +{ + l2fib_entry_result_flags_t flags = va_arg (*args, int); + + if (L2FIB_ENTRY_RESULT_FLAG_NONE == flags) + { + s = format (s, "none"); + } + else + { +#define _(a,v,t) { \ + if (flags & L2FIB_ENTRY_RESULT_FLAG_##a) \ + s = format (s, "%s ", t); \ + } + foreach_l2fib_entry_result_attr +#undef _ + } + return (s); +} + static void incr_mac_address (u8 * mac) { @@ -62,7 +82,7 @@ incr_mac_address (u8 * mac) tmp += 1 << 16; /* skip unused (least significant) octets */ tmp = clib_host_to_net_u64 (tmp); - clib_memcpy (mac, &tmp, 6); + clib_memcpy_fast (mac, &tmp, 6); } /** Format sw_if_index. If the value is ~0, use the text "N/A" */ @@ -74,51 +94,153 @@ format_vnet_sw_if_index_name_with_NA (u8 * s, va_list * args) if (sw_if_index == ~0) return format (s, "N/A"); - vnet_sw_interface_t *swif = vnet_get_sw_interface_safe (vnm, sw_if_index); + vnet_sw_interface_t *swif = + vnet_get_sw_interface_or_null (vnm, sw_if_index); if (!swif) return format (s, "Stale"); return format (s, "%U", format_vnet_sw_interface_name, vnm, - vnet_get_sw_interface_safe (vnm, sw_if_index)); + vnet_get_sw_interface_or_null (vnm, sw_if_index)); +} + +typedef struct l2fib_dump_walk_ctx_t_ +{ + u32 bd_index; + l2fib_entry_key_t *l2fe_key; + l2fib_entry_result_t *l2fe_res; +} l2fib_dump_walk_ctx_t; + +static int +l2fib_dump_walk_cb (BVT (clib_bihash_kv) * kvp, void *arg) +{ + l2fib_dump_walk_ctx_t *ctx = arg; + l2fib_entry_result_t result; + l2fib_entry_key_t key; + + key.raw = kvp->key; + result.raw = kvp->value; + + if ((ctx->bd_index == ~0) || (ctx->bd_index == key.fields.bd_index)) + { + vec_add1 (ctx->l2fe_key, key); + vec_add1 (ctx->l2fe_res, result); + } + + return (BIHASH_WALK_CONTINUE); } void -l2fib_table_dump (u32 bd_index, l2fib_entry_key_t ** l2fe_key, +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; - BVT (clib_bihash_bucket) * b; - BVT (clib_bihash_value) * v; - l2fib_entry_key_t key; + l2fib_dump_walk_ctx_t ctx = { + .bd_index = bd_index, + }; + + BV (clib_bihash_foreach_key_value_pair) + (&msm->mac_table, l2fib_dump_walk_cb, &ctx); + + *l2fe_key = ctx.l2fe_key; + *l2fe_res = ctx.l2fe_res; +} + +void +l2_fib_extract_seq_num (l2fib_seq_num_t sn, u8 * bd_sn, u8 * if_sn) +{ + *bd_sn = sn >> 8; + *if_sn = sn & 0xff; +} + +u8 * +format_l2_fib_seq_num (u8 * s, va_list * a) +{ + l2fib_seq_num_t sn = va_arg (*a, int); + u8 bd_sn, if_sn; + + l2_fib_extract_seq_num (sn, &bd_sn, &if_sn); + + s = format (s, "%3d/%-3d", bd_sn, if_sn); + + return (s); +} + +typedef struct l2fib_show_walk_ctx_t_ +{ + u8 first_entry; + u8 verbose; + vlib_main_t *vm; + vnet_main_t *vnm; + u32 total_entries; + u32 bd_index; + u8 learn; + u8 add; + u8 now; +} l2fib_show_walk_ctx_t; + +static int +l2fib_show_walk_cb (BVT (clib_bihash_kv) * kvp, void *arg) +{ + l2fib_show_walk_ctx_t *ctx = arg; + l2_bridge_domain_t *bd_config; l2fib_entry_result_t result; - int i, j, k; + l2fib_entry_key_t key; - for (i = 0; i < h->nbuckets; i++) + if (ctx->verbose && ctx->first_entry) { - 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; + ctx->first_entry = 0; + vlib_cli_output (ctx->vm, + "%=19s%=7s%=7s%=8s%=9s%=7s%=7s%=5s%=30s", + "Mac-Address", "BD-Idx", "If-Idx", + "BSN-ISN", "Age(min)", "static", "filter", + "bvi", "Interface-Name"); + } - key.raw = v->kvp[k].key; - result.raw = v->kvp[k].value; + key.raw = kvp->key; + result.raw = kvp->value; + ctx->total_entries++; - if ((bd_index == ~0) || (bd_index == key.fields.bd_index)) - { - vec_add1 (*l2fe_key, key); - vec_add1 (*l2fe_res, result); - } - } - v++; + if (ctx->verbose && + ((ctx->bd_index >> 31) || (ctx->bd_index == key.fields.bd_index))) + { + u8 *s = NULL; + + if (ctx->learn && l2fib_entry_result_is_set_AGE_NOT (&result)) + return (BIHASH_WALK_CONTINUE); /* skip provisioned macs */ + + if (ctx->add && !l2fib_entry_result_is_set_AGE_NOT (&result)) + return (BIHASH_WALK_CONTINUE); /* skip learned macs */ + + bd_config = &vec_elt (l2input_main.bd_configs, key.fields.bd_index); + + if (l2fib_entry_result_is_set_AGE_NOT (&result)) + s = format (s, "no"); + else if (bd_config->mac_age == 0) + s = format (s, "-"); + else + { + i16 delta = ctx->now - result.fields.timestamp; + delta += delta < 0 ? 256 : 0; + s = format (s, "%d", delta); } + + vlib_cli_output (ctx->vm, + "%=19U%=7d%=7d %U%=9v%=7s%=7s%=5s%=30U", + format_ethernet_address, key.fields.mac, + key.fields.bd_index, + result.fields.sw_if_index == ~0 + ? -1 : result.fields.sw_if_index, + format_l2_fib_seq_num, result.fields.sn, s, + l2fib_entry_result_is_set_STATIC (&result) ? "*" : "-", + l2fib_entry_result_is_set_FILTER (&result) ? "*" : "-", + l2fib_entry_result_is_set_BVI (&result) ? "*" : "-", + format_vnet_sw_if_index_name_with_NA, + ctx->vnm, result.fields.sw_if_index); + vec_free (s); } + + return (BIHASH_WALK_CONTINUE); } /** Display the contents of the l2fib. */ @@ -128,124 +250,76 @@ show_l2fib (vlib_main_t * vm, { 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; - BVT (clib_bihash_bucket) * 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; - u8 learn = 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, "learn")) - { - learn = 1; - verbose = 0; - } - else if (unformat (input, "bd_id %d", &bd_id)) + u32 bd_id; + l2fib_show_walk_ctx_t ctx = { + .first_entry = 1, + .bd_index = ~0, + .now = (u8) (vlib_time_now (vm) / 60), + .vm = vm, + .vnm = msm->vnet_main, + }; + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { - uword *p = hash_get (bdm->bd_index_by_bd_id, bd_id); - if (p) + if (unformat (input, "raw")) { - if (learn == 0) - verbose = 1; - bd_index = p[0]; + raw = 1; + ctx.verbose = 0; + break; } - else + else if (unformat (input, "verbose")) + ctx.verbose = 1; + else if (unformat (input, "all")) + ctx.verbose = 1; + else if (unformat (input, "bd_index %d", &ctx.bd_index)) + ctx.verbose = 1; + else if (unformat (input, "learn")) { - vlib_cli_output (vm, "no such bridge domain id"); - return 0; + ctx.add = 0; + ctx.learn = 1; + ctx.verbose = 1; } - } - - 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++) + else if (unformat (input, "add")) { - for (k = 0; k < BIHASH_KVP_PER_PAGE; k++) + ctx.learn = 0; + ctx.add = 1; + ctx.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) { - if (v->kvp[k].key == ~0ULL && v->kvp[k].value == ~0ULL) - continue; - - if ((verbose || learn) && first_entry) - { - first_entry = 0; - vlib_cli_output (vm, - "%=19s%=7s%=7s%=8s%=9s%=7s%=7s%=5s%=30s", - "Mac-Address", "BD-Idx", "If-Idx", - "BSN-ISN", "Age(min)", "static", "filter", - "bvi", "Interface-Name"); - } - - key.raw = v->kvp[k].key; - result.raw = v->kvp[k].value; - - if ((verbose || learn) - & ((bd_index >> 31) || (bd_index == key.fields.bd_index))) - { - if (learn && result.fields.age_not) - { - total_entries++; - continue; /* skip provisioned macs */ - } - - bd_config = vec_elt_at_index (l2input_main.bd_configs, - key.fields.bd_index); - - if (bd_config->mac_age && !result.fields.age_not) - { - i16 delta = now - result.fields.timestamp; - delta += delta < 0 ? 256 : 0; - s = format (s, "%d", delta); - } - else - s = format (s, "-"); - - vlib_cli_output (vm, - "%=19U%=7d%=7d %3d/%-3d%=9v%=7s%=7s%=5s%=30U", - format_ethernet_address, key.fields.mac, - key.fields.bd_index, - result.fields.sw_if_index == ~0 - ? -1 : result.fields.sw_if_index, - result.fields.sn.bd, result.fields.sn.swif, - s, result.fields.static_mac ? "*" : "-", - result.fields.filter ? "*" : "-", - result.fields.bvi ? "*" : "-", - format_vnet_sw_if_index_name_with_NA, - msm->vnet_main, result.fields.sw_if_index); - vec_reset_length (s); - } - total_entries++; + ctx.verbose = 1; + ctx.bd_index = p[0]; } - v++; + else + return clib_error_return (0, + "bridge domain id %d doesn't exist\n", + bd_id); } + else + break; } - if (total_entries == 0) + if (msm->mac_table_initialized == 0) + { + vlib_cli_output (vm, "no l2fib entries"); + return 0; + } + + BV (clib_bihash_foreach_key_value_pair) + (&msm->mac_table, l2fib_show_walk_cb, &ctx); + + if (ctx.total_entries == 0) vlib_cli_output (vm, "no l2fib entries"); else { l2learn_main_t *lm = &l2learn_main; vlib_cli_output (vm, "L2FIB total/learned entries: %d/%d " "Last scan time: %.4esec Learn limit: %d ", - total_entries, lm->global_learn_count, + ctx.total_entries, lm->global_learn_count, msm->age_scan_duration, lm->global_learn_limit); if (lm->client_pid) vlib_cli_output (vm, "L2MAC events client PID: %d " @@ -257,14 +331,13 @@ show_l2fib (vlib_main_t * vm, if (raw) vlib_cli_output (vm, "Raw Hash Table:\n%U\n", - BV (format_bihash), h, 1 /* verbose */ ); + BV (format_bihash), &msm->mac_table, 1 /* verbose */ ); - vec_free (s); return 0; } /*? - * This command dispays the MAC Address entries of the L2 FIB table. + * This command displays 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. * @@ -276,7 +349,7 @@ show_l2fib (vlib_main_t * vm, * @cliexend * Example of how to display all the MAC Address entries in the L2 * FIB table: - * @cliexstart{show l2fib verbose} + * @cliexstart{show l2fib all} * 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 @@ -287,23 +360,42 @@ show_l2fib (vlib_main_t * vm, /* *INDENT-OFF* */ VLIB_CLI_COMMAND (show_l2fib_cli, static) = { .path = "show l2fib", - .short_help = "show l2fib [verbose | learn | bd_id | bd_index | raw", + .short_help = "show l2fib [all] | [bd_id | bd_index ] [learn | add] | [raw]", .function = show_l2fib, }; /* *INDENT-ON* */ +void +l2fib_table_init (void) +{ + l2fib_main_t *mp = &l2fib_main; + + if (mp->mac_table_initialized == 1) + return; + + BV (clib_bihash_init) (&mp->mac_table, "l2fib mac table", + mp->mac_table_n_buckets, mp->mac_table_memory_size); + mp->mac_table_initialized = 1; +} /* Remove all entries from the l2fib */ void l2fib_clear_table (void) { l2fib_main_t *mp = &l2fib_main; + l2_bridge_domain_t *bd_config; + + if (mp->mac_table_initialized == 0) + return; + + mp->mac_table_initialized = 0; /* 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); + l2fib_table_init (); l2learn_main.global_learn_count = 0; + vec_foreach (bd_config, l2input_main.bd_configs) + bd_config->learn_count = 0; } /** Clear all entries in L2FIB. @@ -336,16 +428,13 @@ VLIB_CLI_COMMAND (clear_l2fib_cli, static) = { }; /* *INDENT-ON* */ -static inline l2fib_seq_num_t +static l2fib_seq_num_t l2fib_cur_seq_num (u32 bd_index, u32 sw_if_index) { l2_bridge_domain_t *bd_config = l2input_bd_config (bd_index); - /* *INDENT-OFF* */ - return (l2fib_seq_num_t) { - .swif = *l2fib_swif_seq_num (sw_if_index), - .bd = bd_config->seq_num, - }; - /* *INDENT-ON* */ + + return l2_fib_mk_seq_num (bd_config->seq_num, + l2_input_seq_num (sw_if_index)); } /** @@ -353,8 +442,8 @@ l2fib_cur_seq_num (u32 bd_index, u32 sw_if_index) * If the entry already exists then overwrite it */ void -l2fib_add_entry (u8 * mac, u32 bd_index, - u32 sw_if_index, u8 static_mac, u8 filter_mac, u8 bvi_mac) +l2fib_add_entry (const u8 * mac, u32 bd_index, + u32 sw_if_index, l2fib_entry_result_flags_t flags) { l2fib_entry_key_t key; l2fib_entry_result_t result; @@ -363,27 +452,43 @@ l2fib_add_entry (u8 * mac, u32 bd_index, l2learn_main_t *lm = &l2learn_main; BVT (clib_bihash_kv) kv; + if (fm->mac_table_initialized == 0) + l2fib_table_init (); + /* set up key */ key.raw = l2fib_make_key (mac, bd_index); + kv.key = key.raw; - /* check if entry alread exist */ + /* check if entry already exist */ if (BV (clib_bihash_search) (&fm->mac_table, &kv, &kv)) { /* decrement counter if overwriting a learned mac */ result.raw = kv.value; - if ((result.fields.age_not == 0) && (lm->global_learn_count)) - lm->global_learn_count--; + if (!l2fib_entry_result_is_set_AGE_NOT (&result)) + { + l2_bridge_domain_t *bd_config = + vec_elt_at_index (l2input_main.bd_configs, bd_index); + + /* check if learn_count == 0 in case of race condition between 2 + * workers adding an entry simultaneously */ + /* learn_count variable may have little inaccuracy because they are + * not incremented/decremented with atomic operations */ + /* l2fib_scan is call every 2sec fixing potential inaccuracy */ + if (lm->global_learn_count) + lm->global_learn_count--; + if (bd_config->learn_count) + bd_config->learn_count--; + } } /* 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; - result.fields.age_not = 1; /* no aging for provisioned entry */ + result.fields.flags = flags; + + /* no aging for provisioned entry */ + l2fib_entry_result_set_AGE_NOT (&result); - kv.key = key.raw; kv.value = result.raw; BV (clib_bihash_add_del) (&fm->mac_table, &kv, 1 /* is_add */ ); @@ -407,10 +512,10 @@ l2fib_add (vlib_main_t * vm, 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; + l2fib_entry_result_flags_t flags; + + flags = L2FIB_ENTRY_RESULT_FLAG_NONE; if (!unformat (input, "%U", unformat_ethernet_address, mac)) { @@ -436,31 +541,22 @@ l2fib_add (vlib_main_t * vm, if (unformat (input, "filter")) { - filter_mac = 1; - static_mac = 1; - + l2fib_add_filter_entry (mac, bd_index); + return 0; } - 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; - } + 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")) + flags |= L2FIB_ENTRY_RESULT_FLAG_STATIC; + else if (unformat (input, "bvi")) + flags |= (L2FIB_ENTRY_RESULT_FLAG_STATIC | L2FIB_ENTRY_RESULT_FLAG_BVI); + if (vec_len (l2input_main.configs) <= sw_if_index) { error = clib_error_return (0, "Interface sw_if_index %d not in L2 mode", @@ -468,10 +564,7 @@ l2fib_add (vlib_main_t * vm, goto done; } - if (filter_mac) - l2fib_add_filter_entry (mac, bd_index); - else - l2fib_add_fwd_entry (mac, bd_index, sw_if_index, static_mac, bvi_mac); + l2fib_add_entry (mac, bd_index, sw_if_index, flags); done: return error; @@ -517,11 +610,9 @@ 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; u8 mac[6], save_mac[6]; u32 bd_index = 0; u32 sw_if_index = 8; - u32 bvi_mac = 0; u32 is_add = 0; u32 is_del = 0; u32 is_check = 0; @@ -552,13 +643,14 @@ l2fib_test_command_fn (vlib_main_t * vm, return clib_error_return (0, "noop: pick at least one of (add,del,check)"); - clib_memcpy (save_mac, mac, 6); + clib_memcpy_fast (save_mac, mac, 6); if (is_add) { for (i = 0; i < count; i++) { - l2fib_add_fwd_entry (mac, bd_index, sw_if_index, *mac, bvi_mac); + l2fib_add_entry (mac, bd_index, sw_if_index, + L2FIB_ENTRY_RESULT_FLAG_NONE); incr_mac_address (mac); } } @@ -568,7 +660,10 @@ l2fib_test_command_fn (vlib_main_t * vm, BVT (clib_bihash_kv) kv; l2fib_main_t *mp = &l2fib_main; - clib_memcpy (mac, save_mac, 6); + if (mp->mac_table_initialized == 0) + return clib_error_return (0, "mac table is not initialized"); + + clib_memcpy_fast (mac, save_mac, 6); for (i = 0; i < count; i++) { @@ -584,16 +679,16 @@ l2fib_test_command_fn (vlib_main_t * vm, if (is_del) { - clib_memcpy (mac, save_mac, 6); + clib_memcpy_fast (mac, save_mac, 6); for (i = 0; i < count; i++) { - l2fib_del_entry (mac, bd_index); + l2fib_del_entry (mac, bd_index, 0); incr_mac_address (mac); } } - return error; + return 0; } /*? @@ -644,43 +739,47 @@ VLIB_CLI_COMMAND (l2fib_test_command, static) = { /** * Delete an entry from the l2fib. - * Return 0 if the entry was deleted, or 1 if it was not found + * Return 0 if the entry was deleted, or 1 it was not found or if + * sw_if_index is non-zero and does not match that in the entry. */ -static u32 -l2fib_del_entry_by_key (u64 raw_key) +u32 +l2fib_del_entry (const u8 * mac, u32 bd_index, u32 sw_if_index) { - l2fib_entry_result_t result; l2fib_main_t *mp = &l2fib_main; BVT (clib_bihash_kv) kv; + if (mp->mac_table_initialized == 0) + return 1; + /* set up key */ - kv.key = raw_key; + kv.key = l2fib_make_key (mac, bd_index); if (BV (clib_bihash_search) (&mp->mac_table, &kv, &kv)) return 1; result.raw = kv.value; + /* check if sw_if_index of entry match */ + if ((sw_if_index != 0) && (sw_if_index != result.fields.sw_if_index)) + return 1; + /* decrement counter if dynamically learned mac */ - if ((result.fields.age_not == 0) && (l2learn_main.global_learn_count)) - l2learn_main.global_learn_count--; + if (!l2fib_entry_result_is_set_AGE_NOT (&result)) + { + l2_bridge_domain_t *bd_config = + vec_elt_at_index (l2input_main.bd_configs, bd_index); + if (l2learn_main.global_learn_count) + l2learn_main.global_learn_count--; + if (bd_config->learn_count) + bd_config->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. - * Return 0 if the entry was deleted, or 1 if it was not found - */ -u32 -l2fib_del_entry (u8 * mac, u32 bd_index) -{ - return l2fib_del_entry_by_key (l2fib_make_key (mac, bd_index)); -} - /** * Delete an entry from the L2FIB. * The CLI format is: @@ -720,7 +819,7 @@ l2fib_del (vlib_main_t * vm, bd_index = p[0]; /* Delete the entry */ - if (l2fib_del_entry (mac, bd_index)) + if (l2fib_del_entry (mac, bd_index, 0)) { error = clib_error_return (0, "mac entry not found"); goto done; @@ -741,11 +840,41 @@ done: /* *INDENT-OFF* */ VLIB_CLI_COMMAND (l2fib_del_cli, static) = { .path = "l2fib del", - .short_help = "l2fib del ", + .short_help = "l2fib del []", .function = l2fib_del, }; /* *INDENT-ON* */ +static clib_error_t * +l2fib_set_scan_delay (vlib_main_t *vm, unformat_input_t *input, + vlib_cli_command_t *cmd) +{ + clib_error_t *error = 0; + u32 scan_delay; + l2fib_main_t *fm = &l2fib_main; + + if (!unformat (input, "%d", &scan_delay)) + { + error = clib_error_return (0, "expecting delay but got `%U'", + format_unformat_error, input); + goto done; + } + fm->event_scan_delay = (f64) (scan_delay) *10e-3; + l2fib_flush_all_mac (vlib_get_main ()); +done: + return error; +} + +/*? + * This command set scan delay (in 1/10s unit) + * +?*/ +VLIB_CLI_COMMAND (l2fib_set_scan_delay_cli, static) = { + .path = "set l2fib scan-delay", + .short_help = "set l2fib scan-delay ", + .function = l2fib_set_scan_delay, +}; + /** Kick off ager to scan MACs to age/delete MAC entries */ @@ -775,7 +904,7 @@ l2fib_start_ager_scan (vlib_main_t * vm) void l2fib_flush_int_mac (vlib_main_t * vm, u32 sw_if_index) { - *l2fib_swif_seq_num (sw_if_index) += 1; + l2_input_seq_num_inc (sw_if_index); l2fib_start_ager_scan (vm); } @@ -929,7 +1058,8 @@ clib_error_t * l2fib_sw_interface_up_down (vnet_main_t * vnm, u32 sw_if_index, u32 flags) { l2_input_config_t *config = l2input_intf_config (sw_if_index); - if ((flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) == 0 && config->bridge) + if ((flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) == 0 && + l2_input_is_bridge (config)) l2fib_flush_int_mac (vnm->vlib_main, sw_if_index); return 0; } @@ -970,12 +1100,21 @@ l2fib_scan (vlib_main_t * vm, f64 start_time, u8 event_only) u32 client = lm->client_pid; u32 cl_idx = lm->client_index; vl_api_l2_macs_event_t *mp = 0; - unix_shared_memory_queue_t *q = 0; + vl_api_registration_t *reg = 0; + u32 bd_index; + static u32 *bd_learn_counts = 0; + + /* Don't scan the l2 fib if it hasn't been instantiated yet */ + if (alloc_arena (h) == 0) + return 0.0; + + vec_reset_length (bd_learn_counts); + vec_validate (bd_learn_counts, vec_len (l2input_main.bd_configs) - 1); if (client) { mp = allocate_mac_evt_buf (client, cl_idx); - q = vl_api_client_index_to_input_queue (lm->client_index); + reg = vl_api_client_index_to_registration (lm->client_index); } for (i = 0; i < h->nbuckets; i++) @@ -985,16 +1124,20 @@ l2fib_scan (vlib_main_t * vm, f64 start_time, u8 event_only) if (delta_t > 20e-6) { vlib_process_suspend (vm, 100e-6); /* suspend for 100 us */ + /* in case a new bd was created while sleeping */ + vec_validate (bd_learn_counts, + vec_len (l2input_main.bd_configs) - 1); last_start = vlib_time_now (vm); accum_t += delta_t; } if (i < (h->nbuckets - 3)) { - BVT (clib_bihash_bucket) * b = &h->buckets[i + 3]; + BVT (clib_bihash_bucket) * b = + BV (clib_bihash_get_bucket) (h, i + 3); CLIB_PREFETCH (b, CLIB_CACHE_LINE_BYTES, LOAD); - b = &h->buckets[i + 1]; - if (b->offset) + b = BV (clib_bihash_get_bucket) (h, i + 1); + if (!BV (clib_bihash_bucket_is_empty) (b)) { BVT (clib_bihash_value) * v = BV (clib_bihash_get_value) (h, b->offset); @@ -1002,8 +1145,8 @@ l2fib_scan (vlib_main_t * vm, f64 start_time, u8 event_only) } } - BVT (clib_bihash_bucket) * b = &h->buckets[i]; - if (b->offset == 0) + BVT (clib_bihash_bucket) * b = BV (clib_bihash_get_bucket) (h, i); + if (BV (clib_bihash_bucket_is_empty) (b)) continue; BVT (clib_bihash_value) * v = BV (clib_bihash_get_value) (h, b->offset); for (j = 0; j < (1 << b->log2_pages); j++) @@ -1016,23 +1159,26 @@ l2fib_scan (vlib_main_t * vm, f64 start_time, u8 event_only) l2fib_entry_key_t key = {.raw = v->kvp[k].key }; l2fib_entry_result_t result = {.raw = v->kvp[k].value }; - if (result.fields.age_not == 0) - learn_count++; + if (!l2fib_entry_result_is_set_AGE_NOT (&result)) + { + learn_count++; + vec_elt (bd_learn_counts, key.fields.bd_index)++; + } if (client) { if (PREDICT_FALSE (evt_idx >= fm->max_macs_in_event)) { /* event message full, send it and start a new one */ - if (q && (q->cursize < q->maxsize)) + if (reg && vl_api_can_send_msg (reg)) { mp->n_macs = htonl (evt_idx); - vl_msg_api_send_shmem (q, (u8 *) & mp); + vl_api_send_msg (reg, (u8 *) mp); mp = allocate_mac_evt_buf (client, cl_idx); } else { - if (q) + if (reg) clib_warning ("MAC event to pid %d queue stuffed!" " %d MAC entries lost", client, evt_idx); @@ -1040,16 +1186,22 @@ l2fib_scan (vlib_main_t * vm, f64 start_time, u8 event_only) evt_idx = 0; } - if (result.fields.lrn_evt) + if (l2fib_entry_result_is_set_LRN_EVT (&result)) { /* copy mac entry to event msg */ - clib_memcpy (mp->mac[evt_idx].mac_addr, key.fields.mac, - 6); - mp->mac[evt_idx].is_del = 0; + clib_memcpy_fast (mp->mac[evt_idx].mac_addr, + key.fields.mac, 6); + mp->mac[evt_idx].action = + l2fib_entry_result_is_set_LRN_MOV (&result) ? + (vl_api_mac_event_action_t) MAC_EVENT_ACTION_MOVE + : (vl_api_mac_event_action_t) MAC_EVENT_ACTION_ADD; + mp->mac[evt_idx].action = + htonl (mp->mac[evt_idx].action); mp->mac[evt_idx].sw_if_index = htonl (result.fields.sw_if_index); - /* clear event bit and update mac entry */ - result.fields.lrn_evt = 0; + /* clear event bits and update mac entry */ + l2fib_entry_result_clear_LRN_EVT (&result); + l2fib_entry_result_clear_LRN_MOV (&result); BVT (clib_bihash_kv) kv; kv.key = key.raw; kv.value = result.raw; @@ -1059,14 +1211,14 @@ l2fib_scan (vlib_main_t * vm, f64 start_time, u8 event_only) } } - if (event_only || result.fields.age_not) - continue; /* skip aging - static_mac alsways age_not */ + if (event_only || l2fib_entry_result_is_set_AGE_NOT (&result)) + continue; /* skip aging - static_mac always age_not */ /* start aging processing */ u32 bd_index = key.fields.bd_index; u32 sw_if_index = result.fields.sw_if_index; - u16 sn = l2fib_cur_seq_num (bd_index, sw_if_index).as_u16; - if (result.fields.sn.as_u16 != sn) + u16 sn = l2fib_cur_seq_num (bd_index, sw_if_index); + if (result.fields.sn != sn) goto age_out; /* stale mac */ l2_bridge_domain_t *bd_config = @@ -1085,8 +1237,11 @@ l2fib_scan (vlib_main_t * vm, f64 start_time, u8 event_only) if (client) { /* copy mac entry to event msg */ - clib_memcpy (mp->mac[evt_idx].mac_addr, key.fields.mac, 6); - mp->mac[evt_idx].is_del = 1; + clib_memcpy_fast (mp->mac[evt_idx].mac_addr, key.fields.mac, + 6); + mp->mac[evt_idx].action = + (vl_api_mac_event_action_t) MAC_EVENT_ACTION_DELETE; + mp->mac[evt_idx].action = htonl (mp->mac[evt_idx].action); mp->mac[evt_idx].sw_if_index = htonl (result.fields.sw_if_index); evt_idx++; @@ -1096,27 +1251,41 @@ l2fib_scan (vlib_main_t * vm, f64 start_time, u8 event_only) kv.key = key.raw; BV (clib_bihash_add_del) (&fm->mac_table, &kv, 0); learn_count--; + vec_elt (bd_learn_counts, key.fields.bd_index)--; + /* + * Note: we may have just freed the bucket's backing + * storage, so check right here... + */ + if (BV (clib_bihash_bucket_is_empty) (b)) + goto doublebreak; } v++; } + doublebreak: + ; } /* keep learn count consistent */ l2learn_main.global_learn_count = learn_count; + vec_foreach_index (bd_index, l2input_main.bd_configs) + { + vec_elt (l2input_main.bd_configs, bd_index).learn_count = + vec_elt (bd_learn_counts, bd_index); + } if (mp) { /* send any outstanding mac event message else free message buffer */ if (evt_idx) { - if (q && (q->cursize < q->maxsize)) + if (reg && vl_api_can_send_msg (reg)) { mp->n_macs = htonl (evt_idx); - vl_msg_api_send_shmem (q, (u8 *) & mp); + vl_api_send_msg (reg, (u8 *) mp); } else { - if (q) + if (reg) clib_warning ("MAC event to pid %d queue stuffed!" " %d MAC entries lost", client, evt_idx); vl_msg_api_free (mp); @@ -1128,9 +1297,6 @@ l2fib_scan (vlib_main_t * vm, f64 start_time, u8 event_only) return delta_t + accum_t; } -/* Maximum f64 value */ -#define TIME_MAX (1.7976931348623157e+308) - static uword l2fib_mac_age_scanner_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f) @@ -1139,7 +1305,7 @@ l2fib_mac_age_scanner_process (vlib_main_t * vm, vlib_node_runtime_t * rt, l2fib_main_t *fm = &l2fib_main; l2learn_main_t *lm = &l2learn_main; bool enabled = 0; - f64 start_time, next_age_scan_time = TIME_MAX; + f64 start_time, next_age_scan_time = CLIB_TIME_MAX; while (1) { @@ -1198,7 +1364,7 @@ l2fib_mac_age_scanner_process (vlib_main_t * vm, vlib_node_runtime_t * rt, if (enabled) next_age_scan_time = start_time + L2FIB_AGE_SCAN_INTERVAL; else - next_age_scan_time = TIME_MAX; + next_age_scan_time = CLIB_TIME_MAX; } } return 0; @@ -1221,13 +1387,14 @@ l2fib_init (vlib_main_t * vm) 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); + if (mp->mac_table_n_buckets == 0) + mp->mac_table_n_buckets = L2FIB_NUM_BUCKETS; + if (mp->mac_table_memory_size == 0) + mp->mac_table_memory_size = L2FIB_MEMORY_SIZE; + mp->mac_table_initialized = 0; /* verify the key constructor is good, since it is endian-sensitive */ - memset (test_mac, 0, sizeof (test_mac)); + clib_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); @@ -1239,6 +1406,39 @@ l2fib_init (vlib_main_t * vm) VLIB_INIT_FUNCTION (l2fib_init); +static clib_error_t * +lfib_config (vlib_main_t * vm, unformat_input_t * input) +{ + l2fib_main_t *lm = &l2fib_main; + uword table_size = ~0; + u32 n_buckets = ~0; + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "table-size %U", unformat_memory_size, + &table_size)) + ; + else if (unformat (input, "num-buckets %u", &n_buckets)) + ; + else + return clib_error_return (0, "unknown input `%U'", + format_unformat_error, input); + } + + if (n_buckets != ~0) + { + if (!is_pow2 (n_buckets)) + return clib_error_return (0, "num-buckets must be power of 2"); + lm->mac_table_n_buckets = n_buckets; + } + + if (table_size != ~0) + lm->mac_table_memory_size = table_size; + return 0; +} + +VLIB_CONFIG_FUNCTION (lfib_config, "l2fib"); + /* * fd.io coding-style-patch-verification: ON *