#include <vlib/vlib.h>
#include <vnet/vnet.h>
-#include <vnet/pg/pg.h>
#include <vnet/ethernet/ethernet.h>
#include <vlib/cli.h>
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)
{
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" */
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_
l2fib_entry_result_t *l2fe_res;
} l2fib_dump_walk_ctx_t;
-static void
+static int
l2fib_dump_walk_cb (BVT (clib_bihash_kv) * kvp, void *arg)
{
l2fib_dump_walk_ctx_t *ctx = arg;
vec_add1 (ctx->l2fe_key, key);
vec_add1 (ctx->l2fe_res, result);
}
+
+ return (BIHASH_WALK_CONTINUE);
}
void
*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 now;
} l2fib_show_walk_ctx_t;
-static void
+static int
l2fib_show_walk_cb (BVT (clib_bihash_kv) * kvp, void *arg)
{
l2fib_show_walk_ctx_t *ctx = arg;
u8 *s = NULL;
if (ctx->learn && l2fib_entry_result_is_set_AGE_NOT (&result))
- return; /* skip provisioned macs */
+ return (BIHASH_WALK_CONTINUE); /* skip provisioned macs */
if (ctx->add && !l2fib_entry_result_is_set_AGE_NOT (&result))
- return; /* skip learned macs */
+ return (BIHASH_WALK_CONTINUE); /* skip learned macs */
- bd_config = vec_elt_at_index (l2input_main.bd_configs,
- key.fields.bd_index);
+ 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");
}
vlib_cli_output (ctx->vm,
- "%=19U%=7d%=7d %3d/%-3d%=9v%=7s%=7s%=5s%=30U",
+ "%=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,
- result.fields.sn.bd, result.fields.sn.swif, s,
+ 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) ? "*" : "-",
ctx->vnm, result.fields.sw_if_index);
vec_free (s);
}
+
+ return (BIHASH_WALK_CONTINUE);
}
/** Display the contents of the l2fib. */
break;
}
+ 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);
};
/* *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.
};
/* *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));
}
/**
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 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))
- && (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 */
/* 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 */ );
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;
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)
{
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++)
{
if (is_del)
{
- clib_memcpy (mac, save_mac, 6);
+ clib_memcpy_fast (mac, save_mac, 6);
for (i = 0; i < count; i++)
{
}
}
- return error;
+ return 0;
}
/*?
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 (mac, bd_index);
return 1;
/* decrement counter if dynamically learned mac */
- if ((!l2fib_entry_result_is_set_AGE_NOT (&result)) &&
- (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 */ );
};
/* *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_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);
}
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;
}
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)
{
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);
}
}
- 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++)
l2fib_entry_result_t result = {.raw = v->kvp[k].value };
if (!l2fib_entry_result_is_set_AGE_NOT (&result))
- learn_count++;
+ {
+ learn_count++;
+ vec_elt (bd_learn_counts, key.fields.bd_index)++;
+ }
if (client)
{
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);
+ 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) ?
- MAC_EVENT_ACTION_MOVE : MAC_EVENT_ACTION_ADD;
+ (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 */
/* 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 =
if (client)
{
/* copy mac entry to event msg */
- clib_memcpy (mp->mac[evt_idx].mac_addr, key.fields.mac, 6);
- mp->mac[evt_idx].action = MAC_EVENT_ACTION_DELETE;
+ 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++;
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 (b->offset == 0)
+ if (BV (clib_bihash_bucket_is_empty) (b))
goto doublebreak;
}
v++;
/* 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)
{
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 */
clib_memset (test_mac, 0, sizeof (test_mac));
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