#include <vnet/ip/ip_packet.h>
#include <vnet/ip/ip4_packet.h>
#include <vnet/ip/ip6_packet.h>
+#include <vnet/fib/fib_node.h>
+#include <vnet/ethernet/arp_packet.h>
#include <vlib/cli.h>
#include <vnet/l2/l2_input.h>
#include <vnet/l2/l2_output.h>
#include <vnet/l2/feat_bitmap.h>
#include <vnet/l2/l2_bvi.h>
#include <vnet/l2/l2_fib.h>
+#include <vnet/l2/l2_bd.h>
#include <vppinfra/error.h>
#include <vppinfra/hash.h>
return l2input_feat_names;
}
+u8 *
+format_l2_input_features (u8 * s, va_list * args)
+{
+ static char *display_names[] = {
+#define _(sym,name) #sym,
+ foreach_l2input_feat
+#undef _
+ };
+ u32 feature_bitmap = va_arg (*args, u32);
+
+ if (feature_bitmap == 0)
+ {
+ s = format (s, " none configured");
+ return s;
+ }
+
+ feature_bitmap &= ~L2INPUT_FEAT_DROP; /* Not a feature */
+ int i;
+ for (i = L2INPUT_N_FEAT; i >= 0; i--)
+ if (feature_bitmap & (1 << i))
+ s = format (s, "%10s (%s)\n", display_names[i], l2input_feat_names[i]);
+ return s;
+}
typedef struct
{
L2INPUT_N_NEXT,
} l2input_next_t;
+static_always_inline u32
+l2_input_classiy_unicast (vlib_buffer_t * b, const ethernet_header_t * h0)
+{
+ u32 feat_mask = ~0;
+ u8 *l3h0 = (u8 *) h0 + vnet_buffer (b)->l2.l2_len;
+
+#define get_u16(addr) ( *((u16 *)(addr)) )
+ u16 ethertype = clib_net_to_host_u16 (get_u16 (l3h0 - 2));
+ u8 protocol = ((ip6_header_t *) l3h0)->protocol;
+
+ /* Disable bridge forwarding (flooding will execute instead if not xconnect) */
+ feat_mask &= ~(L2INPUT_FEAT_FWD |
+ L2INPUT_FEAT_UU_FLOOD | L2INPUT_FEAT_GBP_FWD);
+
+ /* Disable ARP-term for non-ARP and non-ICMP6 packet */
+ if (ethertype != ETHERNET_TYPE_ARP &&
+ (ethertype != ETHERNET_TYPE_IP6 || protocol != IP_PROTOCOL_ICMP6))
+ feat_mask &= ~(L2INPUT_FEAT_ARP_TERM);
+
+ /*
+ * For packet from BVI - set SHG of ARP request or ICMPv6 neighbor
+ * solicitation packet from BVI to 0 so it can also flood to VXLAN
+ * tunnels or other ports with the same SHG as that of the BVI.
+ */
+ else if (PREDICT_FALSE (vnet_buffer (b)->sw_if_index[VLIB_TX] ==
+ L2INPUT_BVI))
+ {
+ if (ethertype == ETHERNET_TYPE_ARP)
+ {
+ ethernet_arp_header_t *arp0 = (ethernet_arp_header_t *) l3h0;
+ if (arp0->opcode ==
+ clib_host_to_net_u16 (ETHERNET_ARP_OPCODE_request))
+ vnet_buffer (b)->l2.shg = 0;
+ }
+ else /* must be ICMPv6 */
+ {
+ ip6_header_t *iph0 = (ip6_header_t *) l3h0;
+ icmp6_neighbor_solicitation_or_advertisement_header_t *ndh0;
+ ndh0 = ip6_next_header (iph0);
+ if (ndh0->icmp.type == ICMP6_neighbor_solicitation)
+ vnet_buffer (b)->l2.shg = 0;
+ }
+ }
+
+ return (feat_mask);
+}
static_always_inline void
-classify_and_dispatch (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- u32 cpu_index,
- l2input_main_t * msm, vlib_buffer_t * b0, u32 * next0)
+l2_input_classify_bridge (l2_bridge_domain_t * bd_config,
+ u16 bd_index,
+ u32 sw_if_index, vlib_buffer_t * b, u32 * feat_mask)
+{
+ /* save BD ID for next feature graph nodes */
+ vnet_buffer (b)->l2.bd_index = bd_index;
+
+ /* Save bridge domain and interface seq_num */
+ /* *INDENT-OFF* */
+ l2fib_seq_num_t sn = {
+ .swif = *l2fib_swif_seq_num(sw_if_index),
+ .bd = bd_config->seq_num,
+ };
+ /* *INDENT-ON* */
+ vnet_buffer (b)->l2.l2fib_sn = sn.as_u16;;
+ vnet_buffer (b)->l2.bd_age = bd_config->mac_age;
+
+ /*
+ * Process bridge domain feature enables.
+ * To perform learning/flooding/forwarding, the corresponding bit
+ * must be enabled in both the input interface config and in the
+ * bridge domain config. In the bd_bitmap, bits for features other
+ * than learning/flooding/forwarding should always be set.
+ */
+ *feat_mask = *feat_mask & bd_config->feature_bitmap;
+}
+
+static_always_inline void
+classify_and_dispatch (l2input_main_t * msm,
+ u16 n_left,
+ u32 sw_if_index, vlib_buffer_t ** b, u16 * next)
{
/*
* Load L2 input feature struct
* set tx sw-if-handle
*/
- u16 ethertype;
- u8 protocol;
l2_input_config_t *config;
- l2_bridge_domain_t *bd_config;
- u16 bd_index0;
- u32 feature_bitmap;
- u32 feat_mask;
- ethernet_header_t *h0;
- u8 *l3h0;
- u32 sw_if_index0;
-
-#define get_u16(addr) ( *((u16 *)(addr)) )
- sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
+ /* Get config for the input interface */
+ config = vec_elt_at_index (msm->configs, sw_if_index);
- h0 = vlib_buffer_get_current (b0);
- l3h0 = (u8 *) h0 + vnet_buffer (b0)->l2.l2_len;
+ while (n_left > 8)
+ {
+ const ethernet_header_t *h0, *h1, *h2, *h3;
+ u32 fm0, fm1, fm2, fm3;
+ u32 fb0, fb1, fb2, fb3;
- ethertype = clib_net_to_host_u16 (get_u16 (l3h0 - 2));
- feat_mask = ~0;
+ if (n_left >= 4)
+ {
+ vlib_prefetch_buffer_header (b[0], LOAD);
+ vlib_prefetch_buffer_header (b[1], LOAD);
+ vlib_prefetch_buffer_header (b[2], LOAD);
+ vlib_prefetch_buffer_header (b[3], LOAD);
+ }
- /* Get config for the input interface */
- config = vec_elt_at_index (msm->configs, sw_if_index0);
+ fm0 = fm1 = fm2 = fm3 = ~0;
+ h0 = vlib_buffer_get_current (b[0]);
+ h1 = vlib_buffer_get_current (b[1]);
+ h2 = vlib_buffer_get_current (b[2]);
+ h3 = vlib_buffer_get_current (b[3]);
- /* Save split horizon group */
- vnet_buffer (b0)->l2.shg = config->shg;
+ /* Save split horizon group */
+ vnet_buffer (b[0])->l2.shg = config->shg;
+ vnet_buffer (b[1])->l2.shg = config->shg;
+ vnet_buffer (b[2])->l2.shg = config->shg;
+ vnet_buffer (b[3])->l2.shg = config->shg;
- /* determine layer2 kind for stat and mask */
- if (PREDICT_FALSE (ethernet_address_cast (h0->dst_address)))
- {
- protocol = ((ip6_header_t *) l3h0)->protocol;
+ /* determine layer2 kind for stat and mask */
+ if (PREDICT_FALSE (ethernet_address_cast (h0->dst_address)))
+ {
+ fm0 = l2_input_classiy_unicast (b[0], h0);
+ }
+ else
+ {
+ if (PREDICT_FALSE (sw_if_index == L2INPUT_BVI))
+ vnet_buffer (b[0])->l2.shg = 0;
+ }
+ if (PREDICT_FALSE (ethernet_address_cast (h1->dst_address)))
+ {
+ fm1 = l2_input_classiy_unicast (b[1], h1);
+ }
+ else
+ {
+ if (PREDICT_FALSE (sw_if_index == L2INPUT_BVI))
+ vnet_buffer (b[1])->l2.shg = 0;
+ }
+ if (PREDICT_FALSE (ethernet_address_cast (h2->dst_address)))
+ {
+ fm2 = l2_input_classiy_unicast (b[2], h2);
+ }
+ else
+ {
+ if (PREDICT_FALSE (sw_if_index == L2INPUT_BVI))
+ vnet_buffer (b[1])->l2.shg = 0;
+ }
+ if (PREDICT_FALSE (ethernet_address_cast (h3->dst_address)))
+ {
+ fm3 = l2_input_classiy_unicast (b[3], h3);
+ }
+ else
+ {
+ if (PREDICT_FALSE (sw_if_index == L2INPUT_BVI))
+ vnet_buffer (b[1])->l2.shg = 0;
+ }
- /* Disable bridge forwarding (flooding will execute instead if not xconnect) */
- feat_mask &= ~(L2INPUT_FEAT_FWD | L2INPUT_FEAT_UU_FLOOD);
+ if (config->bridge)
+ {
+ /* Do bridge-domain processing */
+ l2_bridge_domain_t *bd_config;
+ u16 bd_index;
+
+ bd_index = config->bd_index;
+ bd_config = vec_elt_at_index (msm->bd_configs, bd_index);
+
+ l2_input_classify_bridge (bd_config, bd_index, sw_if_index,
+ b[0], &fm0);
+ l2_input_classify_bridge (bd_config, bd_index, sw_if_index,
+ b[1], &fm1);
+ l2_input_classify_bridge (bd_config, bd_index, sw_if_index,
+ b[2], &fm2);
+ l2_input_classify_bridge (bd_config, bd_index, sw_if_index,
+ b[3], &fm3);
+ }
+ else if (config->xconnect)
+ {
+ /* Set the output interface */
+ vnet_buffer (b[0])->sw_if_index[VLIB_TX] =
+ config->output_sw_if_index;
+ vnet_buffer (b[1])->sw_if_index[VLIB_TX] =
+ config->output_sw_if_index;
+ vnet_buffer (b[2])->sw_if_index[VLIB_TX] =
+ config->output_sw_if_index;
+ vnet_buffer (b[3])->sw_if_index[VLIB_TX] =
+ config->output_sw_if_index;
+ }
+ else
+ {
+ fm0 = L2INPUT_FEAT_DROP;
+ fm1 = L2INPUT_FEAT_DROP;
+ fm2 = L2INPUT_FEAT_DROP;
+ fm3 = L2INPUT_FEAT_DROP;
+ }
- /* Disable ARP-term for non-ARP and non-ICMP6 packet */
- if (ethertype != ETHERNET_TYPE_ARP &&
- (ethertype != ETHERNET_TYPE_IP6 || protocol != IP_PROTOCOL_ICMP6))
- feat_mask &= ~(L2INPUT_FEAT_ARP_TERM);
+ /* mask out features from bitmap using packet type and bd config */
+ fb0 = config->feature_bitmap & fm0;
+ fb1 = config->feature_bitmap & fm1;
+ fb2 = config->feature_bitmap & fm2;
+ fb3 = config->feature_bitmap & fm3;
+
+ /* save for next feature graph nodes */
+ vnet_buffer (b[0])->l2.feature_bitmap = fb0;
+ vnet_buffer (b[1])->l2.feature_bitmap = fb1;
+ vnet_buffer (b[2])->l2.feature_bitmap = fb2;
+ vnet_buffer (b[3])->l2.feature_bitmap = fb3;
+
+ /* Determine the next node */
+ *next = feat_bitmap_get_next_node_index (msm->feat_next_node_index,
+ fb0);
+ next++;
+ *next = feat_bitmap_get_next_node_index (msm->feat_next_node_index,
+ fb1);
+ next++;
+ *next = feat_bitmap_get_next_node_index (msm->feat_next_node_index,
+ fb2);
+ next++;
+ *next = feat_bitmap_get_next_node_index (msm->feat_next_node_index,
+ fb3);
+ next++;
+
+ b += 4;
+ n_left -= 4;
}
- else
+ while (n_left)
{
- /*
- * Check for from-BVI processing - set SHG of unicast packets from BVI
- * to 0 so it is not dropped for VXLAN tunnels or other ports with the
- * same SHG as that of the BVI.
- */
- if (PREDICT_FALSE (vnet_buffer (b0)->sw_if_index[VLIB_TX] ==
- L2INPUT_BVI))
- vnet_buffer (b0)->l2.shg = 0;
- }
+ const ethernet_header_t *h0;
+ u32 fm0, fb0;
+ fm0 = ~0;
+ h0 = vlib_buffer_get_current (b[0]);
- if (config->xconnect)
- {
- /* Set the output interface */
- vnet_buffer (b0)->sw_if_index[VLIB_TX] = config->output_sw_if_index;
- }
- else
- {
- /* Do bridge-domain processing */
- bd_index0 = config->bd_index;
- /* save BD ID for next feature graph nodes */
- vnet_buffer (b0)->l2.bd_index = bd_index0;
+ /* Save split horizon group */
+ vnet_buffer (b[0])->l2.shg = config->shg;
- /* Get config for the bridge domain interface */
- bd_config = vec_elt_at_index (msm->bd_configs, bd_index0);
+ /* determine layer2 kind for stat and mask */
+ if (PREDICT_FALSE (ethernet_address_cast (h0->dst_address)))
+ {
+ fm0 = l2_input_classiy_unicast (b[0], h0);
+ }
+ else
+ {
+ /*
+ * For packet from BVI - set SHG of unicast packet from BVI to 0 so it
+ * is not dropped on output to VXLAN tunnels or other ports with the
+ * same SHG as that of the BVI.
+ */
+ if (PREDICT_FALSE (sw_if_index == L2INPUT_BVI))
+ vnet_buffer (b[0])->l2.shg = 0;
+ }
- /*
- * Process bridge domain feature enables.
- * To perform learning/flooding/forwarding, the corresponding bit
- * must be enabled in both the input interface config and in the
- * bridge domain config. In the bd_bitmap, bits for features other
- * than learning/flooding/forwarding should always be set.
- */
- feat_mask = feat_mask & bd_config->feature_bitmap;
- }
+ if (config->bridge)
+ {
+ /* Do bridge-domain processing */
+ u16 bd_index = config->bd_index;
+ l2_bridge_domain_t *bd_config =
+ vec_elt_at_index (msm->bd_configs, bd_index);
- /* mask out features from bitmap using packet type and bd config */
- feature_bitmap = config->feature_bitmap & feat_mask;
+ l2_input_classify_bridge (bd_config, bd_index, sw_if_index,
+ b[0], &fm0);
+ }
+ else if (config->xconnect)
+ {
+ /* Set the output interface */
+ vnet_buffer (b[0])->sw_if_index[VLIB_TX] =
+ config->output_sw_if_index;
+ }
+ else
+ fm0 = L2INPUT_FEAT_DROP;
+
+ /* mask out features from bitmap using packet type and bd config */
+ fb0 = config->feature_bitmap & fm0;
+
+ /* save for next feature graph nodes */
+ vnet_buffer (b[0])->l2.feature_bitmap = fb0;
- /* save for next feature graph nodes */
- vnet_buffer (b0)->l2.feature_bitmap = feature_bitmap;
+ /* Determine the next node */
+ *next = feat_bitmap_get_next_node_index (msm->feat_next_node_index,
+ fb0);
- /* Determine the next node */
- *next0 = feat_bitmap_get_next_node_index (msm->feat_next_node_index,
- feature_bitmap);
+ next += 1;
+ b += 1;
+ n_left -= 1;
+ }
}
static_always_inline uword
vlib_node_runtime_t * node, vlib_frame_t * frame,
int do_trace)
{
- u32 n_left_from, *from, *to_next;
- l2input_next_t next_index;
+ u32 n_left, *from;
l2input_main_t *msm = &l2input_main;
- u32 cpu_index = os_get_cpu_number ();
+ vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b;
+ u16 nexts[VLIB_FRAME_SIZE];
+ u32 sw_if_indices[VLIB_FRAME_SIZE], *sw_if_index;
from = vlib_frame_vector_args (frame);
- n_left_from = frame->n_vectors; /* number of packets to process */
- next_index = node->cached_next_index;
+ n_left = frame->n_vectors; /* number of packets to process */
+ vlib_get_buffers (vm, from, bufs, n_left);
+ b = bufs;
+ sw_if_index = sw_if_indices;
- while (n_left_from > 0)
+ /* extract data from buffer metadata */
+ while (n_left >= 8)
+ {
+ /* Prefetch the buffer header for the N+2 loop iteration */
+ vlib_prefetch_buffer_header (b[4], LOAD);
+ vlib_prefetch_buffer_header (b[5], LOAD);
+ vlib_prefetch_buffer_header (b[6], LOAD);
+ vlib_prefetch_buffer_header (b[7], LOAD);
+
+ sw_if_index[0] = vnet_buffer (b[0])->sw_if_index[VLIB_RX];
+ sw_if_index[1] = vnet_buffer (b[1])->sw_if_index[VLIB_RX];
+ sw_if_index[2] = vnet_buffer (b[2])->sw_if_index[VLIB_RX];
+ sw_if_index[3] = vnet_buffer (b[3])->sw_if_index[VLIB_RX];
+
+ /* next */
+ sw_if_index += 4;
+ n_left -= 4;
+ b += 4;
+ }
+ while (n_left)
{
- u32 n_left_to_next;
+ sw_if_index[0] = vnet_buffer (b[0])->sw_if_index[VLIB_RX];
- /* get space to enqueue frame to graph node "next_index" */
- vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
+ /* next */
+ sw_if_index += 1;
+ n_left -= 1;
+ b += 1;
+ }
- while (n_left_from >= 8 && n_left_to_next >= 4)
- {
- 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;
-
- /* Prefetch next iteration. */
- {
- 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]);
-
- /* Prefetch the buffer header and packet for the N+2 loop iteration */
- 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);
-
- /*
- * Don't bother prefetching the bridge-domain config (which
- * depends on the input config above). Only a small number of
- * bridge domains are expected. Plus the structure is small
- * and several fit in a cache line.
- */
- }
-
- /* 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];
- 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);
- b2 = vlib_get_buffer (vm, bi2);
- b3 = vlib_get_buffer (vm, bi3);
-
- if (do_trace)
- {
- /* 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];
+ n_left = frame->n_vectors;
- if (b0->flags & VLIB_BUFFER_IS_TRACED)
- {
- ethernet_header_t *h0 = vlib_buffer_get_current (b0);
- l2input_trace_t *t =
- vlib_add_trace (vm, node, b0, sizeof (*t));
- t->sw_if_index = sw_if_index0;
- clib_memcpy (t->src, h0->src_address, 6);
- clib_memcpy (t->dst, h0->dst_address, 6);
- }
- if (b1->flags & VLIB_BUFFER_IS_TRACED)
- {
- ethernet_header_t *h1 = vlib_buffer_get_current (b1);
- l2input_trace_t *t =
- vlib_add_trace (vm, node, b1, sizeof (*t));
- t->sw_if_index = sw_if_index1;
- clib_memcpy (t->src, h1->src_address, 6);
- clib_memcpy (t->dst, h1->dst_address, 6);
- }
- if (b2->flags & VLIB_BUFFER_IS_TRACED)
- {
- ethernet_header_t *h2 = vlib_buffer_get_current (b2);
- l2input_trace_t *t =
- vlib_add_trace (vm, node, b2, sizeof (*t));
- t->sw_if_index = sw_if_index2;
- clib_memcpy (t->src, h2->src_address, 6);
- clib_memcpy (t->dst, h2->dst_address, 6);
- }
- if (b3->flags & VLIB_BUFFER_IS_TRACED)
- {
- ethernet_header_t *h3 = vlib_buffer_get_current (b3);
- l2input_trace_t *t =
- vlib_add_trace (vm, node, b3, sizeof (*t));
- t->sw_if_index = sw_if_index3;
- clib_memcpy (t->src, h3->src_address, 6);
- clib_memcpy (t->dst, h3->dst_address, 6);
- }
- }
+ while (n_left)
+ {
+ u16 count, *next;
+ u16 off = frame->n_vectors - n_left;
+ b = bufs + off;
- vlib_node_increment_counter (vm, l2input_node.index,
- L2INPUT_ERROR_L2INPUT, 4);
+ sw_if_index = sw_if_indices + off;
+ next = nexts + off;
- classify_and_dispatch (vm, node, cpu_index, msm, b0, &next0);
- classify_and_dispatch (vm, node, cpu_index, msm, b1, &next1);
- classify_and_dispatch (vm, node, cpu_index, msm, b2, &next2);
- classify_and_dispatch (vm, node, cpu_index, msm, b3, &next3);
+ count = clib_count_equal_u32 (sw_if_index, n_left);
+ n_left -= count;
- /* 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);
- }
+ classify_and_dispatch (msm, count, sw_if_index[0], b, next);
+ }
+
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)))
+ {
+ n_left = frame->n_vectors; /* number of packets to process */
+ b = bufs;
- while (n_left_from > 0 && n_left_to_next > 0)
+ while (n_left)
{
- u32 bi0;
- vlib_buffer_t *b0;
- u32 next0;
- u32 sw_if_index0;
-
- /* speculatively enqueue b0 to the current next frame */
- bi0 = from[0];
- to_next[0] = bi0;
- from += 1;
- to_next += 1;
- n_left_from -= 1;
- n_left_to_next -= 1;
-
- b0 = vlib_get_buffer (vm, bi0);
-
- if (do_trace && PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
+ if (PREDICT_FALSE (b[0]->flags & VLIB_BUFFER_IS_TRACED))
{
- ethernet_header_t *h0 = vlib_buffer_get_current (b0);
- l2input_trace_t *t = vlib_add_trace (vm, node, b0, sizeof (*t));
- sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
- t->sw_if_index = sw_if_index0;
+ ethernet_header_t *h0 = vlib_buffer_get_current (b[0]);
+ l2input_trace_t *t =
+ vlib_add_trace (vm, node, b[0], sizeof (*t));
+
+ t->sw_if_index = vnet_buffer (b[0])->sw_if_index[VLIB_RX];
clib_memcpy (t->src, h0->src_address, 6);
clib_memcpy (t->dst, h0->dst_address, 6);
}
-
- vlib_node_increment_counter (vm, l2input_node.index,
- L2INPUT_ERROR_L2INPUT, 1);
-
- classify_and_dispatch (vm, node, cpu_index, msm, b0, &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);
+ /* next */
+ n_left--;
+ b++;
}
-
- vlib_put_next_frame (vm, node, next_index, n_left_to_next);
}
+ vlib_buffer_enqueue_to_next (vm, node, from, nexts, frame->n_vectors);
+ vlib_node_increment_counter (vm, l2input_node.index,
+ L2INPUT_ERROR_L2INPUT, frame->n_vectors);
+
return frame->n_vectors;
}
u32
l2input_intf_bitmap_enable (u32 sw_if_index, u32 feature_bitmap, u32 enable)
{
- l2input_main_t *mp = &l2input_main;
- l2_input_config_t *config;
-
- vec_validate (mp->configs, sw_if_index);
- config = vec_elt_at_index (mp->configs, sw_if_index);
+ l2_input_config_t *config = l2input_intf_config (sw_if_index);
if (enable)
- {
- config->feature_bitmap |= feature_bitmap;
- }
+ config->feature_bitmap |= feature_bitmap;
else
- {
- config->feature_bitmap &= ~feature_bitmap;
- }
+ config->feature_bitmap &= ~feature_bitmap;
return config->feature_bitmap;
}
u32
l2input_set_bridge_features (u32 bd_index, u32 feat_mask, u32 feat_value)
{
- l2_bridge_domain_t *bd_config;
- vec_validate (l2input_main.bd_configs, bd_index);
- bd_config = vec_elt_at_index (l2input_main.bd_configs, bd_index);
+ l2_bridge_domain_t *bd_config = l2input_bd_config (bd_index);;
bd_validate (bd_config);
bd_config->feature_bitmap =
(bd_config->feature_bitmap & ~feat_mask) | feat_value;
return bd_config->feature_bitmap;
}
+void
+l2input_interface_mac_change (u32 sw_if_index,
+ const u8 * old_address, const u8 * new_address)
+{
+ /* check if the sw_if_index passed is a BVI in a BD */
+ l2_input_config_t *intf_config;
+
+ intf_config = l2input_intf_config (sw_if_index);
+
+ if (intf_config->bridge && intf_config->bvi)
+ {
+ /* delete and re-add l2fib entry for the bvi interface */
+ l2fib_del_entry (old_address, intf_config->bd_index, sw_if_index);
+ l2fib_add_entry (new_address,
+ intf_config->bd_index,
+ sw_if_index,
+ L2FIB_ENTRY_RESULT_FLAG_BVI |
+ L2FIB_ENTRY_RESULT_FLAG_STATIC);
+ }
+}
+
/**
* Set the subinterface to run in l2 or l3 mode.
* For L3 mode, just the sw_if_index is specified.
*/
u32
-set_int_l2_mode (vlib_main_t * vm, vnet_main_t * vnet_main, u32 mode, u32 sw_if_index, u32 bd_index, /* for bridged interface */
- u32 bvi, /* the bridged interface is the BVI */
- u32 shg, /* the bridged interface's split horizon group */
- u32 xc_sw_if_index) /* peer interface for xconnect */
+set_int_l2_mode (vlib_main_t * vm, vnet_main_t * vnet_main, /* */
+ u32 mode, /* One of L2 modes or back to L3 mode */
+ u32 sw_if_index, /* sw interface index */
+ u32 bd_index, /* for bridged interface */
+ u32 bvi, /* the bridged interface is the BVI */
+ u32 shg, /* the bridged interface split horizon group */
+ u32 xc_sw_if_index) /* peer interface for xconnect */
{
l2input_main_t *mp = &l2input_main;
l2output_main_t *l2om = &l2output_main;
l2_output_config_t *out_config;
l2_input_config_t *config;
l2_bridge_domain_t *bd_config;
- l2_flood_member_t member;
- u64 mac;
i32 l2_if_adjust = 0;
- u32 slot;
+ vnet_device_class_t *dev_class;
hi = vnet_get_sup_hw_interface (vnet_main, sw_if_index);
config = l2input_intf_config (sw_if_index);
/* undo any BVI-related config */
if (bd_config->bvi_sw_if_index == sw_if_index)
{
+ vnet_sw_interface_t *si;
+
bd_config->bvi_sw_if_index = ~0;
config->bvi = 0;
/* delete the l2fib entry for the bvi interface */
- mac = *((u64 *) hi->hw_address);
- l2fib_del_entry (mac, config->bd_index);
-
- /* Make loop output node send packet back to ethernet-input node */
- slot =
- vlib_node_add_named_next_with_slot (vm, hi->tx_node_index,
- "ethernet-input",
- VNET_SIMULATED_ETHERNET_TX_NEXT_ETHERNET_INPUT);
- ASSERT (slot == VNET_SIMULATED_ETHERNET_TX_NEXT_ETHERNET_INPUT);
+ l2fib_del_entry (hi->hw_address, config->bd_index, sw_if_index);
+
+ /* since this is a no longer BVI interface do not to flood to it */
+ si = vnet_get_sw_interface (vnm, sw_if_index);
+ si->flood_class = VNET_FLOOD_CLASS_NO_FLOOD;
}
+
+ /* Clear MACs learned on the interface */
+ if ((config->feature_bitmap & L2INPUT_FEAT_LEARN) ||
+ (bd_config->feature_bitmap & L2INPUT_FEAT_LEARN))
+ l2fib_flush_int_mac (vm, sw_if_index);
+
l2_if_adjust--;
}
else if (config->xconnect)
l2_if_adjust--;
}
- /*
- * Directs the l2 output path to work out the interface
- * output next-arc itself. Needed when recycling a sw_if_index.
- */
- vec_validate_init_empty (l2om->next_nodes.output_node_index_vec,
- sw_if_index, ~0);
- l2om->next_nodes.output_node_index_vec[sw_if_index] = ~0;
+ /* Make sure vector is big enough */
+ vec_validate_init_empty (l2om->output_node_index_vec, sw_if_index,
+ L2OUTPUT_NEXT_DROP);
/* Initialize the l2-input configuration for the interface */
if (mode == MODE_L3)
config->bd_index = 0;
config->feature_bitmap = L2INPUT_FEAT_DROP;
+ /* Clear L2 output config */
+ out_config = l2output_intf_config (sw_if_index);
+ memset (out_config, 0, sizeof (l2_output_config_t));
+
/* Make sure any L2-output packet to this interface now in L3 mode is
* dropped. This may happen if L2 FIB MAC entry is stale */
- l2om->next_nodes.output_node_index_vec[sw_if_index] =
- L2OUTPUT_NEXT_BAD_INTF;
- }
- else if (mode == MODE_L2_CLASSIFY)
- {
- config->xconnect = 1;
- config->bridge = 0;
- config->output_sw_if_index = xc_sw_if_index;
-
- /* Make sure last-chance drop is configured */
- config->feature_bitmap |=
- L2INPUT_FEAT_DROP | L2INPUT_FEAT_INPUT_CLASSIFY;
-
- /* Make sure bridging features are disabled */
- config->feature_bitmap &=
- ~(L2INPUT_FEAT_LEARN | L2INPUT_FEAT_FWD | L2INPUT_FEAT_FLOOD);
- shg = 0; /* not used in xconnect */
-
- /* Insure all packets go to ethernet-input */
- ethernet_set_rx_redirect (vnet_main, hi, 1);
+ l2om->output_node_index_vec[sw_if_index] = L2OUTPUT_NEXT_BAD_INTF;
}
else
{
+ /* Add or update l2-output node next-arc and output_node_index_vec table
+ * for the interface */
+ l2output_create_output_node_mapping (vm, vnet_main, sw_if_index);
if (mode == MODE_L2_BRIDGE)
{
config->xconnect = 0;
config->bridge = 1;
config->bd_index = bd_index;
+ *l2fib_valid_swif_seq_num (sw_if_index) += 1;
/*
* Enable forwarding, flooding, learning and ARP termination by default
config->feature_bitmap &= ~L2INPUT_FEAT_XCONNECT;
/* Set up bridge domain */
- vec_validate (mp->bd_configs, bd_index);
- bd_config = vec_elt_at_index (mp->bd_configs, bd_index);
+ bd_config = l2input_bd_config (bd_index);
bd_validate (bd_config);
/* TODO: think: add l2fib entry even for non-bvi interface? */
/* Do BVI interface initializations */
if (bvi)
{
+ vnet_sw_interface_t *si;
+
/* ensure BD has no bvi interface (or replace that one with this??) */
if (bd_config->bvi_sw_if_index != ~0)
{
config->bvi = 1;
/* create the l2fib entry for the bvi interface */
- mac = *((u64 *) hi->hw_address);
- l2fib_add_entry (mac, bd_index, sw_if_index, 1, 0, 1); /* static + bvi */
+ l2fib_add_entry (hi->hw_address, bd_index, sw_if_index,
+ L2FIB_ENTRY_RESULT_FLAG_BVI |
+ L2FIB_ENTRY_RESULT_FLAG_STATIC);
/* Disable learning by default. no use since l2fib entry is static. */
config->feature_bitmap &= ~L2INPUT_FEAT_LEARN;
- /* Make loop output node send packet to l2-input node */
- slot =
- vlib_node_add_named_next_with_slot (vm, hi->tx_node_index,
- "l2-input",
- VNET_SIMULATED_ETHERNET_TX_NEXT_ETHERNET_INPUT);
- ASSERT (slot == VNET_SIMULATED_ETHERNET_TX_NEXT_ETHERNET_INPUT);
+ /* since this is a BVI interface we want to flood to it */
+ si = vnet_get_sw_interface (vnm, sw_if_index);
+ si->flood_class = VNET_FLOOD_CLASS_BVI;
}
/* Add interface to bridge-domain flood vector */
- member.sw_if_index = sw_if_index;
- member.flags = bvi ? L2_FLOOD_MEMBER_BVI : L2_FLOOD_MEMBER_NORMAL;
- member.shg = shg;
+ l2_flood_member_t member = {
+ .sw_if_index = sw_if_index,
+ .flags = bvi ? L2_FLOOD_MEMBER_BVI : L2_FLOOD_MEMBER_NORMAL,
+ .shg = shg,
+ };
bd_add_member (bd_config, &member);
}
- else
+ else if (mode == MODE_L2_XC)
{
config->xconnect = 1;
config->bridge = 0;
config->feature_bitmap |= L2INPUT_FEAT_XCONNECT;
shg = 0; /* not used in xconnect */
}
+ else if (mode == MODE_L2_CLASSIFY)
+ {
+ config->xconnect = 1;
+ config->bridge = 0;
+ config->output_sw_if_index = xc_sw_if_index;
+
+ /* Make sure last-chance drop is configured */
+ config->feature_bitmap |=
+ L2INPUT_FEAT_DROP | L2INPUT_FEAT_INPUT_CLASSIFY;
+
+ /* Make sure bridging features are disabled */
+ config->feature_bitmap &=
+ ~(L2INPUT_FEAT_LEARN | L2INPUT_FEAT_FWD | L2INPUT_FEAT_FLOOD);
+ shg = 0; /* not used in xconnect */
+
+ /* Insure all packets go to ethernet-input */
+ ethernet_set_rx_redirect (vnet_main, hi, 1);
+ }
- /* set up split-horizon group */
+ /* set up split-horizon group and set output feature bit */
config->shg = shg;
out_config = l2output_intf_config (sw_if_index);
out_config->shg = shg;
+ out_config->feature_bitmap |= L2OUTPUT_FEAT_OUTPUT;
/*
* Test: remove this when non-IP features can be configured.
/* Set up the L2/L3 flag in the interface parsing tables */
ethernet_sw_interface_set_l2_mode (vnm, sw_if_index, (mode != MODE_L3));
+ dev_class = vnet_get_device_class (vnet_main, hi->dev_class_index);
+ if (dev_class->set_l2_mode_function)
+ {
+ dev_class->set_l2_mode_function (vnet_main, hi, l2_if_adjust);
+ }
+
return 0;
}
goto done;
}
+ if (bd_id > L2_BD_ID_MAX)
+ {
+ error = clib_error_return (0, "bridge domain ID exceed 16M limit",
+ format_unformat_error, input);
+ goto done;
+ }
bd_index = bd_find_or_add_bd_index (&bd_main, bd_id);
/* optional bvi */
char *mode;
u8 *args;
vnet_interface_main_t *im = &vnm->interface_main;
- vnet_sw_interface_t *si, *sis = 0;
- l2input_main_t *mp = &l2input_main;
- l2_input_config_t *config;
+ vnet_sw_interface_t *si, *sis = 0;
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
u32 sw_if_index;
format_unformat_error, input);
goto done;
}
-
}
if (vec_len (sis) == 0) /* Get all interfaces */
vec_foreach (si, sis)
{
- vec_validate (mp->configs, si->sw_if_index);
- config = vec_elt_at_index (mp->configs, si->sw_if_index);
+ l2_input_config_t *config = l2input_intf_config (si->sw_if_index);
if (config->bridge)
{
u32 bd_id;
_(l2_input_classify_init) \
_(l2bd_init) \
_(l2fwd_init) \
-_(l2_inacl_init) \
+_(l2_in_out_acl_init) \
_(l2input_init) \
_(l2_vtr_init) \
_(l2_invtr_init) \
_(l2_efp_filter_init) \
_(l2learn_init) \
_(l2flood_init) \
-_(l2_outacl_init) \
_(l2output_init) \
_(l2_patch_init) \
_(l2_xcrw_init)
Code Review / vpp.git / blobdiff