#include <vlib/vlib.h>
#include <vnet/vnet.h>
-#include <vnet/pg/pg.h>
#include <vnet/ethernet/ethernet.h>
#include <vlib/cli.h>
#include <vppinfra/bihash_template.c>
+#include <vlibmemory/api.h>
+#include <vnet/vnet_msg_enum.h>
+
+#define vl_typedefs /* define message structures */
+#include <vnet/vnet_all_api_h.h>
+#undef vl_typedefs
+
+#define vl_endianfun /* define message structures */
+#include <vnet/vnet_all_api_h.h>
+#undef vl_endianfun
+
/**
* @file
* @brief Ethernet MAC Address FIB Table Management.
*
*/
-typedef struct
-{
+l2fib_main_t l2fib_main;
- /* hash table */
- BVT (clib_bihash) mac_table;
+u8 *
+format_l2fib_entry_result_flags (u8 * s, va_list * args)
+{
+ l2fib_entry_result_flags_t flags = va_arg (*args, int);
- /* convenience variables */
- vlib_main_t *vlib_main;
- vnet_main_t *vnet_main;
-} l2fib_main_t;
+ 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);
+}
-l2fib_main_t l2fib_main;
+static void
+incr_mac_address (u8 * mac)
+{
+ u64 tmp = *((u64 *) mac);
+ tmp = clib_net_to_host_u64 (tmp);
+ tmp += 1 << 16; /* skip unused (least significant) octets */
+ tmp = clib_host_to_net_u64 (tmp);
+ clib_memcpy_fast (mac, &tmp, 6);
+}
/** Format sw_if_index. If the value is ~0, use the text "N/A" */
u8 *
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));
+
+ 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_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;
- clib_bihash_bucket_t *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. */
{
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))
+ 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"))
{
- 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 && 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
- & ((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 && !result.fields.static_mac)
- {
- 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.bd_sn, result.fields.int_sn,
- 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 (msm->mac_table_initialized == 0)
+ {
+ vlib_cli_output (vm, "no l2fib entries");
+ return 0;
}
- if (total_entries == 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
- vlib_cli_output (vm, "%lld l2fib entries", total_entries);
+ {
+ l2learn_main_t *lm = &l2learn_main;
+ vlib_cli_output (vm, "L2FIB total/learned entries: %d/%d "
+ "Last scan time: %.4esec Learn limit: %d ",
+ 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 "
+ "Last e-scan time: %.4esec Delay: %.2esec "
+ "Max macs in event: %d",
+ lm->client_pid, msm->evt_scan_duration,
+ msm->event_scan_delay, msm->max_macs_in_event);
+ }
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.
*
* @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
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (show_l2fib_cli, static) = {
.path = "show l2fib",
- .short_help = "show l2fib [verbose | bd_id <nn> | bd_index <nn> | raw]",
+ .short_help = "show l2fib [all] | [bd_id <nn> | bd_index <nn>] [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 (uint keep_static)
+l2fib_clear_table (void)
{
l2fib_main_t *mp = &l2fib_main;
+ l2_bridge_domain_t *bd_config;
- 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);
- }
+ if (mp->mac_table_initialized == 0)
+ return;
+
+ mp->mac_table_initialized = 0;
+ /* Remove all entries */
+ BV (clib_bihash_free) (&mp->mac_table);
+ 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.
clear_l2fib (vlib_main_t * vm,
unformat_input_t * input, vlib_cli_command_t * cmd)
{
- l2fib_clear_table (0);
+ l2fib_clear_table ();
return 0;
}
};
/* *INDENT-ON* */
+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);
+
+ return l2_fib_mk_seq_num (bd_config->seq_num,
+ l2_input_seq_num (sw_if_index));
+}
/**
* 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_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;
__attribute__ ((unused)) u32 bucket_contents;
- l2fib_main_t *mp = &l2fib_main;
+ l2fib_main_t *fm = &l2fib_main;
+ 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 ((u8 *) & mac, bd_index);
+ key.raw = l2fib_make_key (mac, bd_index);
+ kv.key = key.raw;
+
+ /* 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 (!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;
- if (!static_mac)
- {
- l2_input_config_t *int_config = l2input_intf_config (sw_if_index);
- l2_bridge_domain_t *bd_config =
- vec_elt_at_index (l2input_main.bd_configs,
- bd_index);
- result.fields.int_sn = int_config->seq_num;
- result.fields.bd_sn = bd_config->seq_num;
- }
+ result.fields.flags = flags;
- kv.key = key.raw;
- kv.value = result.raw;
+ /* no aging for provisioned entry */
+ l2fib_entry_result_set_AGE_NOT (&result);
- BV (clib_bihash_add_del) (&mp->mac_table, &kv, 1 /* is_add */ );
+ kv.value = result.raw;
- /* increment counter if dynamically learned mac */
- if (result.fields.static_mac)
- {
- l2learn_main.global_learn_count++;
- }
+ BV (clib_bihash_add_del) (&fm->mac_table, &kv, 1 /* is_add */ );
}
/**
bd_main_t *bdm = &bd_main;
vnet_main_t *vnm = vnet_get_main ();
clib_error_t *error = 0;
- u64 mac;
+ u8 mac[6];
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;
- if (!unformat_user (input, unformat_ethernet_address, &mac))
+ flags = L2FIB_ENTRY_RESULT_FLAG_NONE;
+
+ if (!unformat (input, "%U", unformat_ethernet_address, mac))
{
error = clib_error_return (0, "expected mac address `%U'",
format_unformat_error, input);
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_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 (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",
+ sw_if_index);
+ goto done;
}
- l2fib_add_entry (mac, bd_index, sw_if_index, static_mac, filter_mac,
- bvi_mac);
+ l2fib_add_entry (mac, bd_index, sw_if_index, flags);
done:
return error;
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;
+ u8 mac[6], save_mac[6];
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;
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
- if (unformat (input, "mac %U", unformat_ethernet_address, &mac))
+ if (unformat (input, "mac %U", unformat_ethernet_address, mac))
mac_set = 1;
else if (unformat (input, "add"))
is_add = 1;
return clib_error_return (0,
"noop: pick at least one of (add,del,check)");
- save_mac = mac;
+ clib_memcpy_fast (save_mac, mac, 6);
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);
+ l2fib_add_entry (mac, bd_index, sw_if_index,
+ L2FIB_ENTRY_RESULT_FLAG_NONE);
+ incr_mac_address (mac);
}
}
BVT (clib_bihash_kv) kv;
l2fib_main_t *mp = &l2fib_main;
- mac = save_mac;
+ 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++)
{
- u64 tmp;
- kv.key = l2fib_make_key ((u8 *) & mac, bd_index);
+ kv.key = l2fib_make_key (mac, bd_index);
if (BV (clib_bihash_search) (&mp->mac_table, &kv, &kv))
{
- clib_warning ("key %U AWOL", format_ethernet_address, &mac);
+ 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);
+ incr_mac_address (mac);
}
}
if (is_del)
{
+ clib_memcpy_fast (mac, save_mac, 6);
+
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);
+ l2fib_del_entry (mac, bd_index, 0);
+ incr_mac_address (mac);
}
}
- return error;
+ return 0;
}
/*?
/**
* 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.
*/
u32
-l2fib_del_entry (u64 mac, u32 bd_index)
+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 = l2fib_make_key ((u8 *) & mac, bd_index);
+ 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.static_mac)
+ if (!l2fib_entry_result_is_set_AGE_NOT (&result))
{
- if (l2learn_main.global_learn_count > 0)
- {
- l2learn_main.global_learn_count--;
- }
+ 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 */
{
bd_main_t *bdm = &bd_main;
clib_error_t *error = 0;
- u64 mac;
+ u8 mac[6];
u32 bd_id;
u32 bd_index;
uword *p;
- if (!unformat_user (input, unformat_ethernet_address, &mac))
+ if (!unformat (input, "%U", unformat_ethernet_address, mac))
{
error = clib_error_return (0, "expected mac address `%U'",
format_unformat_error, input);
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;
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (l2fib_del_cli, static) = {
.path = "l2fib del",
- .short_help = "l2fib del <mac> <bridge-domain-id>",
+ .short_help = "l2fib del <mac> <bridge-domain-id> []",
.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 <delay>",
+ .function = l2fib_set_scan_delay,
+};
+
/**
Kick off ager to scan MACs to age/delete MAC entries
*/
void
l2fib_start_ager_scan (vlib_main_t * vm)
{
- l2_bridge_domain_t *bd_config;
- int enable = 0;
+ uword evt = L2_MAC_AGE_PROCESS_EVENT_ONE_PASS;
/* check if there is at least one bd with mac aging enabled */
+ l2_bridge_domain_t *bd_config;
vec_foreach (bd_config, l2input_main.bd_configs)
+ {
if (bd_config->bd_id != ~0 && bd_config->mac_age != 0)
- enable = 1;
+ {
+ evt = L2_MAC_AGE_PROCESS_EVENT_START;
+ break;
+ }
+ }
vlib_process_signal_event (vm, l2fib_mac_age_scanner_process_node.index,
- enable ? L2_MAC_AGE_PROCESS_EVENT_START :
- L2_MAC_AGE_PROCESS_EVENT_ONE_PASS, 0);
+ evt, 0);
}
/**
- Flush all learned MACs from an interface
+ Flush all non static MACs from an interface
*/
void
l2fib_flush_int_mac (vlib_main_t * vm, u32 sw_if_index)
{
- l2_input_config_t *int_config;
- int_config = l2input_intf_config (sw_if_index);
- int_config->seq_num += 1;
+ l2_input_seq_num_inc (sw_if_index);
l2fib_start_ager_scan (vm);
}
/**
- Flush all learned MACs in a bridge domain
+ Flush all non static MACs in a bridge domain
*/
void
l2fib_flush_bd_mac (vlib_main_t * vm, u32 bd_index)
{
- l2_bridge_domain_t *bd_config;
- bd_config = l2input_bd_config (bd_index);
+ l2_bridge_domain_t *bd_config = l2input_bd_config (bd_index);
bd_config->seq_num += 1;
l2fib_start_ager_scan (vm);
}
+/**
+ Flush all non static MACs - flushes all valid BDs
+*/
+void
+l2fib_flush_all_mac (vlib_main_t * vm)
+{
+ l2_bridge_domain_t *bd_config;
+ vec_foreach (bd_config, l2input_main.bd_configs)
+ if (bd_is_valid (bd_config))
+ bd_config->seq_num += 1;
+
+ l2fib_start_ager_scan (vm);
+}
+
+
/**
Flush MACs, except static ones, associated with an interface
The CLI format is:
return error;
}
+/**
+ Flush all MACs, except static ones
+ The CLI format is:
+ l2fib flush-mac all
+*/
+static clib_error_t *
+l2fib_flush_mac_all (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ l2fib_flush_all_mac (vm);
+ return 0;
+}
+
+/*?
+ * This command kick off ager to delete all existing MAC Address entries,
+ * except static ones, associated with an interface from the L2 FIB table.
+ *
+ * @cliexpar
+ * Example of how to flush MAC Address entries learned on an interface from the L2 FIB table:
+ * @cliexcmd{l2fib flush-mac interface GigabitEthernet2/1/0}
+?*/
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (l2fib_flush_mac_all_cli, static) = {
+ .path = "l2fib flush-mac all",
+ .short_help = "l2fib flush-mac all",
+ .function = l2fib_flush_mac_all,
+};
+/* *INDENT-ON* */
+
/*?
* This command kick off ager to delete all existing MAC Address entries,
* except static ones, associated with an interface from the L2 FIB table.
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;
}
return &mp->mac_table;
}
+static_always_inline void *
+allocate_mac_evt_buf (u32 client, u32 client_index)
+{
+ l2fib_main_t *fm = &l2fib_main;
+ vl_api_l2_macs_event_t *mp = vl_msg_api_alloc
+ (sizeof (*mp) + (fm->max_macs_in_event * sizeof (vl_api_mac_entry_t)));
+ mp->_vl_msg_id = htons (VL_API_L2_MACS_EVENT);
+ mp->pid = htonl (client);
+ mp->client_index = client_index;
+ return mp;
+}
+
+static_always_inline f64
+l2fib_scan (vlib_main_t * vm, f64 start_time, u8 event_only)
+{
+ l2fib_main_t *fm = &l2fib_main;
+ l2learn_main_t *lm = &l2learn_main;
+
+ BVT (clib_bihash) * h = &fm->mac_table;
+ int i, j, k;
+ f64 last_start = start_time;
+ f64 accum_t = 0;
+ f64 delta_t = 0;
+ u32 evt_idx = 0;
+ u32 learn_count = 0;
+ u32 client = lm->client_pid;
+ u32 cl_idx = lm->client_index;
+ vl_api_l2_macs_event_t *mp = 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);
+ reg = vl_api_client_index_to_registration (lm->client_index);
+ }
+
+ for (i = 0; i < h->nbuckets; i++)
+ {
+ /* allow no more than 20us without a pause */
+ delta_t = vlib_time_now (vm) - last_start;
+ 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 =
+ BV (clib_bihash_get_bucket) (h, i + 3);
+ CLIB_PREFETCH (b, CLIB_CACHE_LINE_BYTES, LOAD);
+ 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);
+ CLIB_PREFETCH (v, CLIB_CACHE_LINE_BYTES, LOAD);
+ }
+ }
+
+ 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++)
+ {
+ for (k = 0; k < BIHASH_KVP_PER_PAGE; k++)
+ {
+ if (v->kvp[k].key == ~0ULL && v->kvp[k].value == ~0ULL)
+ continue;
+
+ l2fib_entry_key_t key = {.raw = v->kvp[k].key };
+ l2fib_entry_result_t result = {.raw = v->kvp[k].value };
+
+ 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 (reg && vl_api_can_send_msg (reg))
+ {
+ mp->n_macs = htonl (evt_idx);
+ vl_api_send_msg (reg, (u8 *) mp);
+ mp = allocate_mac_evt_buf (client, cl_idx);
+ }
+ else
+ {
+ if (reg)
+ clib_warning ("MAC event to pid %d queue stuffed!"
+ " %d MAC entries lost", client,
+ evt_idx);
+ }
+ evt_idx = 0;
+ }
+
+ if (l2fib_entry_result_is_set_LRN_EVT (&result))
+ {
+ /* copy mac entry to event msg */
+ 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 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;
+ BV (clib_bihash_add_del) (&fm->mac_table, &kv, 1);
+ evt_idx++;
+ continue; /* skip aging */
+ }
+ }
+
+ 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);
+ if (result.fields.sn != sn)
+ goto age_out; /* stale mac */
+
+ l2_bridge_domain_t *bd_config =
+ vec_elt_at_index (l2input_main.bd_configs, bd_index);
+
+ if (bd_config->mac_age == 0)
+ continue; /* skip aging */
+
+ i16 delta = (u8) (start_time / 60) - result.fields.timestamp;
+ delta += delta < 0 ? 256 : 0;
+
+ if (delta < bd_config->mac_age)
+ continue; /* still valid */
+
+ age_out:
+ if (client)
+ {
+ /* copy mac entry to event msg */
+ 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++;
+ }
+ /* delete mac entry */
+ BVT (clib_bihash_kv) kv;
+ 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 (reg && vl_api_can_send_msg (reg))
+ {
+ mp->n_macs = htonl (evt_idx);
+ vl_api_send_msg (reg, (u8 *) mp);
+ }
+ else
+ {
+ if (reg)
+ clib_warning ("MAC event to pid %d queue stuffed!"
+ " %d MAC entries lost", client, evt_idx);
+ vl_msg_api_free (mp);
+ }
+ }
+ else
+ vl_msg_api_free (mp);
+ }
+ return delta_t + accum_t;
+}
+
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_input_config_t *int_config;
- 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;
+ l2fib_main_t *fm = &l2fib_main;
+ l2learn_main_t *lm = &l2learn_main;
bool enabled = 0;
- f64 start_time, last_run_duration = 0, t;
- i16 delta;
+ f64 start_time, next_age_scan_time = CLIB_TIME_MAX;
while (1)
{
- if (enabled)
- vlib_process_wait_for_event_or_clock (vm, 60 - last_run_duration);
+ if (lm->client_pid)
+ vlib_process_wait_for_event_or_clock (vm, fm->event_scan_delay);
+ else if (enabled)
+ {
+ f64 t = next_age_scan_time - vlib_time_now (vm);
+ vlib_process_wait_for_event_or_clock (vm, t);
+ }
else
vlib_process_wait_for_event (vm);
event_type = vlib_process_get_events (vm, &event_data);
vec_reset_length (event_data);
+ start_time = vlib_time_now (vm);
+ enum
+ { SCAN_MAC_AGE, SCAN_MAC_EVENT, SCAN_DISABLE } scan = SCAN_MAC_AGE;
+
switch (event_type)
{
- case ~0:
+ case ~0: /* timer expired */
+ if (lm->client_pid != 0 && start_time < next_age_scan_time)
+ scan = SCAN_MAC_EVENT;
break;
+
case L2_MAC_AGE_PROCESS_EVENT_START:
enabled = 1;
break;
+
case L2_MAC_AGE_PROCESS_EVENT_STOP:
enabled = 0;
- continue;
+ scan = SCAN_DISABLE;
+ break;
+
case L2_MAC_AGE_PROCESS_EVENT_ONE_PASS:
- enabled = 0;
break;
+
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))
+ if (scan == SCAN_MAC_EVENT)
+ l2fib_main.evt_scan_duration = l2fib_scan (vm, start_time, 1);
+ else
+ {
+ if (scan == SCAN_MAC_AGE)
+ l2fib_main.age_scan_duration = l2fib_scan (vm, start_time, 0);
+ if (scan == SCAN_DISABLE)
{
- 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;
-
- int_config =
- l2input_intf_config (result.fields.sw_if_index);
- bd_config =
- vec_elt_at_index (l2input_main.bd_configs,
- key.fields.bd_index);
-
- if ((result.fields.int_sn != int_config->seq_num) ||
- (result.fields.bd_sn != bd_config->seq_num))
- {
- void *p = &key.fields.mac;
- l2fib_del_entry (*(u64 *) p, key.fields.bd_index);
- continue;
- }
-
- 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++;
+ l2fib_main.age_scan_duration = 0;
+ l2fib_main.evt_scan_duration = 0;
}
+ /* schedule next scan */
+ if (enabled)
+ next_age_scan_time = start_time + L2FIB_AGE_SCAN_INTERVAL;
+ else
+ next_age_scan_time = CLIB_TIME_MAX;
}
- last_run_duration = vlib_time_now (vm) - last_run_duration;
}
return 0;
}
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);
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
*
Code Review / vpp.git / blobdiff