#include <vppinfra/error.h>
#include <vppinfra/hash.h>
-/*
- * Ethernet bridge learning
+/**
+ * @file
+ * @brief Ethernet Bridge Learning.
*
* Populate the mac table with entries mapping the packet's source mac + bridge
- * domain ID to the input sw_if_index.
+ * domain ID to the input sw_if_index.
*
* Note that learning and forwarding are separate graph nodes. This means that
* for a set of packets, all learning is performed first, then all nodes are
*/
-typedef struct {
+typedef struct
+{
u8 src[6];
u8 dst[6];
u32 sw_if_index;
/* packet trace format function */
-static u8 * format_l2learn_trace (u8 * s, va_list * args)
+static u8 *
+format_l2learn_trace (u8 * s, va_list * args)
{
CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
- l2learn_trace_t * t = va_arg (*args, l2learn_trace_t *);
-
+ l2learn_trace_t *t = va_arg (*args, l2learn_trace_t *);
+
s = format (s, "l2-learn: sw_if_index %d dst %U src %U bd_index %d",
- t->sw_if_index,
- format_ethernet_address, t->dst,
- format_ethernet_address, t->src,
- t->bd_index);
+ t->sw_if_index,
+ format_ethernet_address, t->dst,
+ format_ethernet_address, t->src, t->bd_index);
return s;
}
_(MAC_MOVE_VIOLATE, "L2 mac move violations") \
_(LIMIT, "L2 not learned due to limit") \
_(HIT, "L2 learn hits") \
-_(FILTER_DROP, "L2 filter mac drops")
+_(FILTER_DROP, "L2 filter mac drops")
-typedef enum {
+typedef enum
+{
#define _(sym,str) L2LEARN_ERROR_##sym,
foreach_l2learn_error
#undef _
- L2LEARN_N_ERROR,
+ L2LEARN_N_ERROR,
} l2learn_error_t;
-static char * l2learn_error_strings[] = {
+static char *l2learn_error_strings[] = {
#define _(sym,string) string,
foreach_l2learn_error
#undef _
};
-typedef enum {
+typedef enum
+{
L2LEARN_NEXT_L2FWD,
L2LEARN_NEXT_DROP,
L2LEARN_N_NEXT,
} l2learn_next_t;
-// Perform learning on one packet based on the mac table lookup result
+/** Perform learning on one packet based on the mac table lookup result. */
static_always_inline void
l2learn_process (vlib_node_runtime_t * node,
- l2learn_main_t * msm,
- u64 * counter_base,
- vlib_buffer_t * b0,
- u32 sw_if_index0,
- l2fib_entry_key_t * key0,
- l2fib_entry_key_t * cached_key,
- u32 * bucket0,
- l2fib_entry_result_t * result0,
- u32 * next0)
+ l2learn_main_t * msm,
+ u64 * counter_base,
+ vlib_buffer_t * b0,
+ u32 sw_if_index0,
+ l2fib_entry_key_t * key0,
+ l2fib_entry_key_t * cached_key,
+ u32 * bucket0, l2fib_entry_result_t * result0, u32 * next0)
{
u32 feature_bitmap;
- // Set up the default next node (typically L2FWD)
+ /* Set up the default next node (typically L2FWD) */
- // Remove ourself from the feature bitmap
- feature_bitmap = vnet_buffer(b0)->l2.feature_bitmap & ~L2INPUT_FEAT_LEARN;
+ /* Remove ourself from the feature bitmap */
+ feature_bitmap = vnet_buffer (b0)->l2.feature_bitmap & ~L2INPUT_FEAT_LEARN;
- // Save for next feature graph nodes
- vnet_buffer(b0)->l2.feature_bitmap = feature_bitmap;
+ /* Save for next feature graph nodes */
+ vnet_buffer (b0)->l2.feature_bitmap = feature_bitmap;
- // Determine the next node
- *next0 = feat_bitmap_get_next_node_index(msm->feat_next_node_index,
- feature_bitmap);
+ /* Determine the next node */
+ *next0 = feat_bitmap_get_next_node_index (msm->feat_next_node_index,
+ feature_bitmap);
- // Check mac table lookup result
+ /* Check mac table lookup result */
- if (PREDICT_TRUE (result0->fields.sw_if_index == sw_if_index0)) {
- // The entry was in the table, and the sw_if_index matched, the normal case
+ if (PREDICT_TRUE (result0->fields.sw_if_index == sw_if_index0))
+ {
+ /*
+ * The entry was in the table, and the sw_if_index matched, the normal case
+ *
+ * TODO: for dataplane learning and aging, do this:
+ * if refresh=0 and not a static mac, set refresh=1
+ */
+ counter_base[L2LEARN_ERROR_HIT] += 1;
- // TODO: for dataplane learning and aging, do this:
- // if refresh=0 and not a static mac, set refresh=1
- counter_base[L2LEARN_ERROR_HIT] += 1;
+ }
+ else if (result0->raw == ~0)
+ {
- } else if (result0->raw == ~0) {
+ /* The entry was not in table, so add it */
- // The entry was not in table, so add it
+ counter_base[L2LEARN_ERROR_MISS] += 1;
- counter_base[L2LEARN_ERROR_MISS] += 1;
+ if (msm->global_learn_count == msm->global_learn_limit)
+ {
+ /*
+ * Global limit reached. Do not learn the mac but forward the packet.
+ * In the future, limits could also be per-interface or bridge-domain.
+ */
+ counter_base[L2LEARN_ERROR_LIMIT] += 1;
+ goto done;
- if (msm->global_learn_count == msm->global_learn_limit) {
- // Global limit reached. Do not learn the mac but forward the packet.
- // In the future, limits could also be per-interface or bridge-domain.
- counter_base[L2LEARN_ERROR_LIMIT] += 1;
- goto done;
+ }
+ else
+ {
+ BVT (clib_bihash_kv) kv;
+ /* It is ok to learn */
- } else {
- BVT(clib_bihash_kv) kv;
- // It is ok to learn
+ result0->raw = 0; /* clear all fields */
+ result0->fields.sw_if_index = sw_if_index0;
+ /* TODO: set timestamp in entry to clock for dataplane aging */
+ kv.key = key0->raw;
+ kv.value = result0->raw;
- result0->raw = 0; // clear all fields
- result0->fields.sw_if_index = sw_if_index0;
- // TODO: set timestamp in entry to clock for dataplane aging
- kv.key = key0->raw;
- kv.value = result0->raw;
+ BV (clib_bihash_add_del) (msm->mac_table, &kv, 1 /* is_add */ );
- BV(clib_bihash_add_del) (msm->mac_table, &kv, 1 /* is_add */);
+ cached_key->raw = ~0; /* invalidate the cache */
+ msm->global_learn_count++;
+ }
- cached_key->raw = ~0; // invalidate the cache
- msm->global_learn_count++;
}
+ else
+ {
- } else {
+ /* The entry was in the table, but with the wrong sw_if_index mapping (mac move) */
+ counter_base[L2LEARN_ERROR_MAC_MOVE] += 1;
- // The entry was in the table, but with the wrong sw_if_index mapping (mac move)
- counter_base[L2LEARN_ERROR_MAC_MOVE] += 1;
+ if (result0->fields.static_mac)
+ {
+ /*
+ * Don't overwrite a static mac
+ * TODO: Check violation policy. For now drop the packet
+ */
+ b0->error = node->errors[L2LEARN_ERROR_MAC_MOVE_VIOLATE];
+ *next0 = L2LEARN_NEXT_DROP;
+ }
+ else
+ {
+ /*
+ * Update the entry
+ * TODO: may want to rate limit mac moves
+ * TODO: check global/bridge domain/interface learn limits
+ */
+ BVT (clib_bihash_kv) kv;
- if (result0->fields.static_mac) {
- // Don't overwrite a static mac
- // TODO: Check violation policy. For now drop the packet
- b0->error = node->errors[L2LEARN_ERROR_MAC_MOVE_VIOLATE];
- *next0 = L2LEARN_NEXT_DROP;
- } else {
- // Update the entry
- // TODO: may want to rate limit mac moves
- // TODO: check global/bridge domain/interface learn limits
- BVT(clib_bihash_kv) kv;
+ result0->raw = 0; /* clear all fields */
+ result0->fields.sw_if_index = sw_if_index0;
- result0->raw = 0; // clear all fields
- result0->fields.sw_if_index = sw_if_index0;
-
- kv.key = key0->raw;
- kv.value = result0->raw;
+ kv.key = key0->raw;
+ kv.value = result0->raw;
- cached_key->raw = ~0; // invalidate the cache
+ cached_key->raw = ~0; /* invalidate the cache */
- BV(clib_bihash_add_del) (msm->mac_table, &kv, 1 /* is_add */);
+ BV (clib_bihash_add_del) (msm->mac_table, &kv, 1 /* is_add */ );
+ }
}
- }
- if (result0->fields.filter) {
- // drop packet because lookup matched a filter mac entry
+ if (result0->fields.filter)
+ {
+ /* drop packet because lookup matched a filter mac entry */
- if (*next0 != L2LEARN_NEXT_DROP) {
- // if we're not already dropping the packet, do it now
- b0->error = node->errors[L2LEARN_ERROR_FILTER_DROP];
- *next0 = L2LEARN_NEXT_DROP;
+ if (*next0 != L2LEARN_NEXT_DROP)
+ {
+ /* if we're not already dropping the packet, do it now */
+ b0->error = node->errors[L2LEARN_ERROR_FILTER_DROP];
+ *next0 = L2LEARN_NEXT_DROP;
+ }
}
- }
done:
return;
static uword
l2learn_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
{
- u32 n_left_from, * from, * to_next;
+ u32 n_left_from, *from, *to_next;
l2learn_next_t next_index;
- l2learn_main_t * msm = &l2learn_main;
+ l2learn_main_t *msm = &l2learn_main;
vlib_node_t *n = vlib_get_node (vm, l2learn_node.index);
u32 node_counter_base_index = n->error_heap_index;
- vlib_error_main_t * em = &vm->error_main;
+ vlib_error_main_t *em = &vm->error_main;
l2fib_entry_key_t cached_key;
l2fib_entry_result_t cached_result;
from = vlib_frame_vector_args (frame);
- n_left_from = frame->n_vectors; /* number of packets to process */
+ n_left_from = frame->n_vectors; /* number of packets to process */
next_index = node->cached_next_index;
-
- // Clear the one-entry cache in case mac table was updated
- cached_key.raw = ~0;
- cached_result.raw = ~0; /* warning be gone */
+
+ /* Clear the one-entry cache in case mac table was updated */
+ cached_key.raw = ~0;
+ cached_result.raw = ~0; /* warning be gone */
while (n_left_from > 0)
{
u32 n_left_to_next;
/* get space to enqueue frame to graph node "next_index" */
- vlib_get_next_frame (vm, node, next_index,
- to_next, n_left_to_next);
+ vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
- while (n_left_from >= 4 && n_left_to_next >= 2)
+ while (n_left_from >= 8 && n_left_to_next >= 4)
{
- u32 bi0, bi1;
- vlib_buffer_t * b0, * b1;
- u32 next0, next1;
- u32 sw_if_index0, sw_if_index1;
- ethernet_header_t * h0, * h1;
- l2fib_entry_key_t key0, key1;
- l2fib_entry_result_t result0, result1;
- u32 bucket0, bucket1;
-
+ u32 bi0, bi1, bi2, bi3;
+ vlib_buffer_t *b0, *b1, *b2, *b3;
+ u32 next0, next1, next2, next3;
+ u32 sw_if_index0, sw_if_index1, sw_if_index2, sw_if_index3;
+ ethernet_header_t *h0, *h1, *h2, *h3;
+ l2fib_entry_key_t key0, key1, key2, key3;
+ l2fib_entry_result_t result0, result1, result2, result3;
+ u32 bucket0, bucket1, bucket2, bucket3;
+
/* Prefetch next iteration. */
{
- vlib_buffer_t * p2, * p3;
-
- p2 = vlib_get_buffer (vm, from[2]);
- p3 = vlib_get_buffer (vm, from[3]);
-
- vlib_prefetch_buffer_header (p2, LOAD);
- vlib_prefetch_buffer_header (p3, LOAD);
-
- CLIB_PREFETCH (p2->data, CLIB_CACHE_LINE_BYTES, STORE);
- CLIB_PREFETCH (p3->data, CLIB_CACHE_LINE_BYTES, STORE);
+ vlib_buffer_t *p4, *p5, *p6, *p7;;
+
+ p4 = vlib_get_buffer (vm, from[4]);
+ p5 = vlib_get_buffer (vm, from[5]);
+ p6 = vlib_get_buffer (vm, from[6]);
+ p7 = vlib_get_buffer (vm, from[7]);
+
+ vlib_prefetch_buffer_header (p4, LOAD);
+ vlib_prefetch_buffer_header (p5, LOAD);
+ vlib_prefetch_buffer_header (p6, LOAD);
+ vlib_prefetch_buffer_header (p7, LOAD);
+
+ CLIB_PREFETCH (p4->data, CLIB_CACHE_LINE_BYTES, STORE);
+ CLIB_PREFETCH (p5->data, CLIB_CACHE_LINE_BYTES, STORE);
+ CLIB_PREFETCH (p6->data, CLIB_CACHE_LINE_BYTES, STORE);
+ CLIB_PREFETCH (p7->data, CLIB_CACHE_LINE_BYTES, STORE);
}
- /* speculatively enqueue b0 and b1 to the current next frame */
- /* bi is "buffer index", b is pointer to the buffer */
+ /* speculatively enqueue b0 and b1 to the current next frame */
+ /* bi is "buffer index", b is pointer to the buffer */
to_next[0] = bi0 = from[0];
to_next[1] = bi1 = from[1];
- from += 2;
- to_next += 2;
- n_left_from -= 2;
- n_left_to_next -= 2;
+ to_next[2] = bi2 = from[2];
+ to_next[3] = bi3 = from[3];
+ from += 4;
+ to_next += 4;
+ n_left_from -= 4;
+ n_left_to_next -= 4;
b0 = vlib_get_buffer (vm, bi0);
b1 = vlib_get_buffer (vm, bi1);
-
- /* RX interface handles */
- sw_if_index0 = vnet_buffer(b0)->sw_if_index[VLIB_RX];
- sw_if_index1 = vnet_buffer(b1)->sw_if_index[VLIB_RX];
-
- /* Process 2 x pkts */
-
- h0 = vlib_buffer_get_current (b0);
- h1 = vlib_buffer_get_current (b1);
-
- if (PREDICT_FALSE((node->flags & VLIB_NODE_FLAG_TRACE)))
- {
- if (b0->flags & VLIB_BUFFER_IS_TRACED)
- {
- l2learn_trace_t *t =
- vlib_add_trace (vm, node, b0, sizeof (*t));
- t->sw_if_index = sw_if_index0;
- t->bd_index = vnet_buffer(b0)->l2.bd_index;
- memcpy(t->src, h0->src_address, 6);
- memcpy(t->dst, h0->dst_address, 6);
- }
- if (b1->flags & VLIB_BUFFER_IS_TRACED)
- {
- l2learn_trace_t *t =
- vlib_add_trace (vm, node, b1, sizeof (*t));
- t->sw_if_index = sw_if_index1;
- t->bd_index = vnet_buffer(b1)->l2.bd_index;
- memcpy(t->src, h1->src_address, 6);
- memcpy(t->dst, h1->dst_address, 6);
- }
- }
-
- /* process 2 pkts */
- em->counters[node_counter_base_index + L2LEARN_ERROR_L2LEARN] += 2;
-
- l2fib_lookup_2 (msm->mac_table, &cached_key, &cached_result,
- h0->src_address,
- h1->src_address,
- vnet_buffer(b0)->l2.bd_index,
- vnet_buffer(b1)->l2.bd_index,
- &key0,
- &key1,
- &bucket0,
- &bucket1,
- &result0,
- &result1);
-
- l2learn_process (node, msm, &em->counters[node_counter_base_index],
- b0, sw_if_index0, &key0, &cached_key,
- &bucket0, &result0, &next0);
-
- l2learn_process (node, msm, &em->counters[node_counter_base_index],
- b1, sw_if_index1, &key1, &cached_key,
- &bucket1, &result1, &next1);
-
- /* verify speculative enqueues, maybe switch current next frame */
- /* if next0==next1==next_index then nothing special needs to be done */
- vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
- to_next, n_left_to_next,
- bi0, bi1, next0, next1);
- }
-
+ b2 = vlib_get_buffer (vm, bi2);
+ b3 = vlib_get_buffer (vm, bi3);
+
+ /* RX interface handles */
+ sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
+ sw_if_index1 = vnet_buffer (b1)->sw_if_index[VLIB_RX];
+ sw_if_index2 = vnet_buffer (b2)->sw_if_index[VLIB_RX];
+ sw_if_index3 = vnet_buffer (b3)->sw_if_index[VLIB_RX];
+
+ /* Process 4 x pkts */
+
+ h0 = vlib_buffer_get_current (b0);
+ h1 = vlib_buffer_get_current (b1);
+ h2 = vlib_buffer_get_current (b2);
+ h3 = vlib_buffer_get_current (b3);
+
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)))
+ {
+ if (b0->flags & VLIB_BUFFER_IS_TRACED)
+ {
+ l2learn_trace_t *t =
+ vlib_add_trace (vm, node, b0, sizeof (*t));
+ t->sw_if_index = sw_if_index0;
+ t->bd_index = vnet_buffer (b0)->l2.bd_index;
+ clib_memcpy (t->src, h0->src_address, 6);
+ clib_memcpy (t->dst, h0->dst_address, 6);
+ }
+ if (b1->flags & VLIB_BUFFER_IS_TRACED)
+ {
+ l2learn_trace_t *t =
+ vlib_add_trace (vm, node, b1, sizeof (*t));
+ t->sw_if_index = sw_if_index1;
+ t->bd_index = vnet_buffer (b1)->l2.bd_index;
+ clib_memcpy (t->src, h1->src_address, 6);
+ clib_memcpy (t->dst, h1->dst_address, 6);
+ }
+ if (b2->flags & VLIB_BUFFER_IS_TRACED)
+ {
+ l2learn_trace_t *t =
+ vlib_add_trace (vm, node, b2, sizeof (*t));
+ t->sw_if_index = sw_if_index2;
+ t->bd_index = vnet_buffer (b2)->l2.bd_index;
+ clib_memcpy (t->src, h2->src_address, 6);
+ clib_memcpy (t->dst, h2->dst_address, 6);
+ }
+ if (b3->flags & VLIB_BUFFER_IS_TRACED)
+ {
+ l2learn_trace_t *t =
+ vlib_add_trace (vm, node, b3, sizeof (*t));
+ t->sw_if_index = sw_if_index3;
+ t->bd_index = vnet_buffer (b3)->l2.bd_index;
+ clib_memcpy (t->src, h3->src_address, 6);
+ clib_memcpy (t->dst, h3->dst_address, 6);
+ }
+ }
+
+ /* process 4 pkts */
+ vlib_node_increment_counter (vm, l2learn_node.index,
+ L2LEARN_ERROR_L2LEARN, 4);
+
+ l2fib_lookup_4 (msm->mac_table, &cached_key, &cached_result,
+ h0->src_address,
+ h1->src_address,
+ h2->src_address,
+ h3->src_address,
+ vnet_buffer (b0)->l2.bd_index,
+ vnet_buffer (b1)->l2.bd_index,
+ vnet_buffer (b2)->l2.bd_index,
+ vnet_buffer (b3)->l2.bd_index,
+ &key0, &key1, &key2, &key3,
+ &bucket0, &bucket1, &bucket2, &bucket3,
+ &result0, &result1, &result2, &result3);
+
+ l2learn_process (node, msm, &em->counters[node_counter_base_index],
+ b0, sw_if_index0, &key0, &cached_key,
+ &bucket0, &result0, &next0);
+
+ l2learn_process (node, msm, &em->counters[node_counter_base_index],
+ b1, sw_if_index1, &key1, &cached_key,
+ &bucket1, &result1, &next1);
+
+ l2learn_process (node, msm, &em->counters[node_counter_base_index],
+ b2, sw_if_index2, &key2, &cached_key,
+ &bucket2, &result2, &next2);
+
+ l2learn_process (node, msm, &em->counters[node_counter_base_index],
+ b3, sw_if_index3, &key3, &cached_key,
+ &bucket3, &result3, &next3);
+
+ /* verify speculative enqueues, maybe switch current next frame */
+ /* if next0==next1==next_index then nothing special needs to be done */
+ vlib_validate_buffer_enqueue_x4 (vm, node, next_index,
+ to_next, n_left_to_next,
+ bi0, bi1, bi2, bi3,
+ next0, next1, next2, next3);
+ }
+
while (n_left_from > 0 && n_left_to_next > 0)
{
- u32 bi0;
- vlib_buffer_t * b0;
- u32 next0;
- u32 sw_if_index0;
- ethernet_header_t * h0;
- l2fib_entry_key_t key0;
- l2fib_entry_result_t result0;
- u32 bucket0;
-
- /* speculatively enqueue b0 to the current next frame */
+ u32 bi0;
+ vlib_buffer_t *b0;
+ u32 next0;
+ u32 sw_if_index0;
+ ethernet_header_t *h0;
+ l2fib_entry_key_t key0;
+ l2fib_entry_result_t result0;
+ u32 bucket0;
+
+ /* speculatively enqueue b0 to the current next frame */
bi0 = from[0];
to_next[0] = bi0;
from += 1;
b0 = vlib_get_buffer (vm, bi0);
- sw_if_index0 = vnet_buffer(b0)->sw_if_index[VLIB_RX];
-
- h0 = vlib_buffer_get_current (b0);
-
- if (PREDICT_FALSE((node->flags & VLIB_NODE_FLAG_TRACE)
- && (b0->flags & VLIB_BUFFER_IS_TRACED))) {
- l2learn_trace_t *t =
- vlib_add_trace (vm, node, b0, sizeof (*t));
- t->sw_if_index = sw_if_index0;
- t->bd_index = vnet_buffer(b0)->l2.bd_index;
- memcpy(t->src, h0->src_address, 6);
- memcpy(t->dst, h0->dst_address, 6);
- }
-
- /* process 1 pkt */
- em->counters[node_counter_base_index + L2LEARN_ERROR_L2LEARN] += 1;
-
- l2fib_lookup_1 (msm->mac_table, &cached_key, &cached_result,
- h0->src_address, vnet_buffer(b0)->l2.bd_index,
- &key0,
- &bucket0,
- &result0);
-
- l2learn_process (node, msm, &em->counters[node_counter_base_index],
- b0, sw_if_index0, &key0, &cached_key,
- &bucket0, &result0, &next0);
-
- /* verify speculative enqueue, maybe switch current next frame */
+ sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
+
+ h0 = vlib_buffer_get_current (b0);
+
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)
+ && (b0->flags & VLIB_BUFFER_IS_TRACED)))
+ {
+ l2learn_trace_t *t = vlib_add_trace (vm, node, b0, sizeof (*t));
+ t->sw_if_index = sw_if_index0;
+ t->bd_index = vnet_buffer (b0)->l2.bd_index;
+ clib_memcpy (t->src, h0->src_address, 6);
+ clib_memcpy (t->dst, h0->dst_address, 6);
+ }
+
+ /* process 1 pkt */
+ vlib_node_increment_counter (vm, l2learn_node.index,
+ L2LEARN_ERROR_L2LEARN, 1);
+
+
+ l2fib_lookup_1 (msm->mac_table, &cached_key, &cached_result,
+ h0->src_address, vnet_buffer (b0)->l2.bd_index,
+ &key0, &bucket0, &result0);
+
+ l2learn_process (node, msm, &em->counters[node_counter_base_index],
+ b0, sw_if_index0, &key0, &cached_key,
+ &bucket0, &result0, &next0);
+
+ /* verify speculative enqueue, maybe switch current next frame */
vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
to_next, n_left_to_next,
bi0, next0);
}
+/* *INDENT-OFF* */
VLIB_REGISTER_NODE (l2learn_node,static) = {
.function = l2learn_node_fn,
.name = "l2-learn",
.vector_size = sizeof (u32),
.format_trace = format_l2learn_trace,
.type = VLIB_NODE_TYPE_INTERNAL,
-
+
.n_errors = ARRAY_LEN(l2learn_error_strings),
.error_strings = l2learn_error_strings,
[L2LEARN_NEXT_L2FWD] = "l2-fwd",
},
};
+/* *INDENT-ON* */
-
-clib_error_t *l2learn_init (vlib_main_t *vm)
+VLIB_NODE_FUNCTION_MULTIARCH (l2learn_node, l2learn_node_fn)
+ clib_error_t *l2learn_init (vlib_main_t * vm)
{
- l2learn_main_t * mp = &l2learn_main;
-
+ l2learn_main_t *mp = &l2learn_main;
+
mp->vlib_main = vm;
- mp->vnet_main = vnet_get_main();
+ mp->vnet_main = vnet_get_main ();
- // Initialize the feature next-node indexes
- feat_bitmap_init_next_nodes(vm,
- l2learn_node.index,
- L2INPUT_N_FEAT,
- l2input_get_feat_names(),
- mp->feat_next_node_index);
+ /* Initialize the feature next-node indexes */
+ feat_bitmap_init_next_nodes (vm,
+ l2learn_node.index,
+ L2INPUT_N_FEAT,
+ l2input_get_feat_names (),
+ mp->feat_next_node_index);
/* init the hash table ptr */
- mp->mac_table = get_mac_table();
+ mp->mac_table = get_mac_table ();
- // Set the default number of dynamically learned macs to the number
- // of buckets.
+ /*
+ * Set the default number of dynamically learned macs to the number
+ * of buckets.
+ */
mp->global_learn_limit = L2FIB_NUM_BUCKETS * 16;
return 0;
VLIB_INIT_FUNCTION (l2learn_init);
-// set subinterface learn enable/disable
-// The CLI format is:
-// set interface l2 learn <interface> [disable]
+/**
+ * Set subinterface learn enable/disable.
+ * The CLI format is:
+ * set interface l2 learn <interface> [disable]
+ */
static clib_error_t *
int_learn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
+ unformat_input_t * input, vlib_cli_command_t * cmd)
{
- vnet_main_t * vnm = vnet_get_main();
- clib_error_t * error = 0;
+ vnet_main_t *vnm = vnet_get_main ();
+ clib_error_t *error = 0;
u32 sw_if_index;
u32 enable;
- if (! unformat_user (input, unformat_vnet_sw_interface, vnm, &sw_if_index))
+ if (!unformat_user (input, unformat_vnet_sw_interface, vnm, &sw_if_index))
{
error = clib_error_return (0, "unknown interface `%U'",
- format_unformat_error, input);
+ format_unformat_error, input);
goto done;
}
enable = 1;
- if (unformat (input, "disable")) {
- enable = 0;
- }
+ if (unformat (input, "disable"))
+ {
+ enable = 0;
+ }
- // set the interface flag
- l2input_intf_bitmap_enable(sw_if_index, L2INPUT_FEAT_LEARN, enable);
+ /* set the interface flag */
+ l2input_intf_bitmap_enable (sw_if_index, L2INPUT_FEAT_LEARN, enable);
- done:
+done:
return error;
}
+/*?
+ * Layer 2 learning can be enabled and disabled on each
+ * interface and on each bridge-domain. Use this command to
+ * manage interfaces. It is enabled by default.
+ *
+ * @cliexpar
+ * Example of how to enable learning:
+ * @cliexcmd{set interface l2 learn GigabitEthernet0/8/0}
+ * Example of how to disable learning:
+ * @cliexcmd{set interface l2 learn GigabitEthernet0/8/0 disable}
+?*/
+/* *INDENT-OFF* */
VLIB_CLI_COMMAND (int_learn_cli, static) = {
.path = "set interface l2 learn",
.short_help = "set interface l2 learn <interface> [disable]",
.function = int_learn,
};
+/* *INDENT-ON* */
static clib_error_t *
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (input, "limit %d", &mp->global_learn_limit))
- ;
+ ;
else
- return clib_error_return (0, "unknown input `%U'",
- format_unformat_error, input);
+ return clib_error_return (0, "unknown input `%U'",
+ format_unformat_error, input);
}
return 0;
VLIB_CONFIG_FUNCTION (l2learn_config, "l2learn");
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
Code Review / vpp.git / blobdiff