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-rw-r--r--src/vnet.am31
-rw-r--r--src/vnet/l2/l2_output.c612
2 files changed, 311 insertions, 332 deletions
diff --git a/src/vnet.am b/src/vnet.am
index 3a1e10d7d8b..3450b102fa8 100644
--- a/src/vnet.am
+++ b/src/vnet.am
@@ -12,6 +12,7 @@
# limitations under the License.
lib_LTLIBRARIES += libvnet.la
+noinst_LTLIBRARIES =
libvnet_la_SOURCES =
libvnet_la_DEPENDENCIES = \
@@ -20,6 +21,7 @@ libvnet_la_DEPENDENCIES = \
libsvmdb.la \
libsvm.la \
libvlibmemory.la
+libvnet_multiversioning_files =
libvnet_la_LIBADD = $(libvnet_la_DEPENDENCIES) -lm -lpthread -ldl -lrt
@@ -126,6 +128,9 @@ libvnet_la_SOURCES += \
vnet/ethernet/p2p_ethernet_input.c \
vnet/ethernet/p2p_ethernet_api.c
+libvnet_multiversioning_files += \
+ vnet/l2/l2_output.c
+
nobase_include_HEADERS += \
vnet/ethernet/arp_packet.h \
vnet/ethernet/error.def \
@@ -1270,6 +1275,32 @@ nobase_include_HEADERS += \
API_FILES += vnet/bier/bier.api
+if CPU_X86_64
+if CC_SUPPORTS_AVX2
+###############################################################
+# AVX2
+###############################################################
+libvnet_avx2_la_SOURCES = $(libvnet_multiversioning_files)
+libvnet_avx2_la_CFLAGS = \
+ $(AM_CFLAGS) @CPU_AVX2_FLAGS@ \
+ -DCLIB_MULTIARCH_VARIANT=avx2
+noinst_LTLIBRARIES += libvnet_avx2.la
+libvnet_la_LIBADD += libvnet_avx2.la
+endif
+
+if CC_SUPPORTS_AVX512
+###############################################################
+# AVX512
+###############################################################
+libvnet_avx512_la_SOURCES = $(libvnet_multiversioning_files)
+libvnet_avx512_la_CFLAGS = \
+ $(AM_CFLAGS) @CPU_AVX512_FLAGS@ \
+ -DCLIB_MULTIARCH_VARIANT=avx512
+noinst_LTLIBRARIES += libvnet_avx512.la
+libvnet_la_LIBADD += libvnet_avx512.la
+endif
+endif
+
########################################
# Test apps
########################################
diff --git a/src/vnet/l2/l2_output.c b/src/vnet/l2/l2_output.c
index 500fc5d0e95..306049bd0db 100644
--- a/src/vnet/l2/l2_output.c
+++ b/src/vnet/l2/l2_output.c
@@ -27,6 +27,7 @@
#include <vnet/l2/l2_output.h>
+#ifndef CLIB_MULTIARCH_VARIANT
/* Feature graph node names */
static char *l2output_feat_names[] = {
#define _(sym,name) name,
@@ -64,6 +65,7 @@ format_l2_output_features (u8 * s, va_list * args)
}
l2output_main_t l2output_main;
+#endif
typedef struct
{
@@ -74,6 +76,7 @@ typedef struct
u8 raw[12]; /* raw data */
} l2output_trace_t;
+#ifndef CLIB_MULTIARCH_VARIANT
/* packet trace format function */
static u8 *
format_l2output_trace (u8 * s, va_list * args)
@@ -100,6 +103,7 @@ static char *l2output_error_strings[] = {
foreach_l2output_error
#undef _
};
+#endif
/**
* Check for split horizon violations.
@@ -108,395 +112,326 @@ static char *l2output_error_strings[] = {
* split-horizon group as the input interface, except if the @c shg is 0
* in which case the check always passes.
*/
-static_always_inline u32
-split_horizon_violation (u8 shg1, u8 shg2)
+static_always_inline void
+split_horizon_violation (vlib_node_runtime_t * node, u8 shg,
+ vlib_buffer_t * b, u16 * next)
{
- if (PREDICT_TRUE (shg1 == 0))
- {
- return 0;
- }
- else
- {
- return shg1 == shg2;
- }
+ if (shg != vnet_buffer (b)->l2.shg)
+ return;
+ next[0] = L2OUTPUT_NEXT_DROP;
+ b->error = node->errors[L2OUTPUT_ERROR_SHG_DROP];
}
-/** Determine the next L2 node based on the output feature bitmap */
static_always_inline void
-l2_output_dispatch (vlib_buffer_t * b0, vlib_node_runtime_t * node,
- u32 * cached_sw_if_index, u32 * cached_next_index,
- u32 sw_if_index, u32 feature_bitmap, u32 * next0)
+l2output_process_batch_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
+ l2_output_config_t * config,
+ vlib_buffer_t ** b, i16 * cdo, u16 * next,
+ u32 n_left, int l2_efp, int l2_vtr, int l2_pbb,
+ int shg_set, int update_feature_bitmap)
{
- /*
- * The output feature bitmap always have at least the L2 output bit set
- * for a normal L2 interface (or 0 if the interface is changed from L2
- * to L3 mode). So if the feature bitmap is 0 or just have L2 output bits set,
- * we know there is no more feature and will just output packets on interface.
- * Otherwise, get the index of the next feature node.
- */
- if (PREDICT_FALSE ((feature_bitmap & ~L2OUTPUT_FEAT_OUTPUT) != 0))
+ while (n_left >= 8)
{
- /* Save bitmap for the next feature graph nodes */
- vnet_buffer (b0)->l2.feature_bitmap = feature_bitmap;
+ 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);
- /* Determine the next node */
- *next0 =
- feat_bitmap_get_next_node_index (l2output_main.l2_out_feat_next,
- feature_bitmap);
- }
- else
- {
- /*
- * There are no features. Send packet to TX node for sw_if_index0
- * This is a little tricky in that the output interface next node indexes
- * are not precomputed at init time.
- */
+ /* prefetch eth headers only if we need to touch them */
+ if (l2_vtr || l2_pbb || shg_set)
+ {
+ CLIB_PREFETCH (b[4]->data + cdo[4], CLIB_CACHE_LINE_BYTES, LOAD);
+ CLIB_PREFETCH (b[5]->data + cdo[5], CLIB_CACHE_LINE_BYTES, LOAD);
+ CLIB_PREFETCH (b[6]->data + cdo[6], CLIB_CACHE_LINE_BYTES, LOAD);
+ CLIB_PREFETCH (b[7]->data + cdo[7], CLIB_CACHE_LINE_BYTES, LOAD);
+ }
- if (sw_if_index == *cached_sw_if_index)
+ if (update_feature_bitmap)
{
- /* We hit in the one-entry cache. Use it. */
- *next0 = *cached_next_index;
+ vnet_buffer (b[0])->l2.feature_bitmap = config->feature_bitmap;
+ vnet_buffer (b[1])->l2.feature_bitmap = config->feature_bitmap;
+ vnet_buffer (b[2])->l2.feature_bitmap = config->feature_bitmap;
+ vnet_buffer (b[3])->l2.feature_bitmap = config->feature_bitmap;
}
- else
+
+ if (l2_vtr)
{
- /* Look up the output TX node for the sw_if_index */
- *next0 = vec_elt (l2output_main.output_node_index_vec, sw_if_index);
+ int i;
+ for (i = 0; i < 4; i++)
+ {
+ u32 failed1 = l2_efp &&
+ l2_efp_filter_process (b[i], &(config->input_vtr));
+ u32 failed2 = l2_vtr_process (b[i], &(config->output_vtr));
+ if (PREDICT_FALSE (failed1 | failed2))
+ {
+ next[i] = L2OUTPUT_NEXT_DROP;
+ if (failed2)
+ b[i]->error = node->errors[L2OUTPUT_ERROR_VTR_DROP];
+ if (failed1)
+ b[i]->error = node->errors[L2OUTPUT_ERROR_EFP_DROP];
+ }
+ }
+ }
- if (PREDICT_FALSE (*next0 == L2OUTPUT_NEXT_DROP))
- b0->error = node->errors[L2OUTPUT_ERROR_MAPPING_DROP];
+ if (l2_pbb)
+ {
+ int i;
+ for (i = 0; i < 4; i++)
+ if (l2_pbb_process (b[i], &(config->output_pbb_vtr)))
+ {
+ next[i] = L2OUTPUT_NEXT_DROP;
+ b[i]->error = node->errors[L2OUTPUT_ERROR_VTR_DROP];
+ }
+ }
- /* Update the one-entry cache */
- *cached_sw_if_index = sw_if_index;
- *cached_next_index = *next0;
+ if (shg_set)
+ {
+ split_horizon_violation (node, config->shg, b[0], next);
+ split_horizon_violation (node, config->shg, b[1], next + 1);
+ split_horizon_violation (node, config->shg, b[2], next + 2);
+ split_horizon_violation (node, config->shg, b[3], next + 3);
}
+ /* next */
+ n_left -= 4;
+ b += 4;
+ next += 4;
+ cdo += 4;
}
-}
-static_always_inline void
-l2output_vtr (vlib_node_runtime_t * node, l2_output_config_t * config,
- u32 feature_bitmap, vlib_buffer_t * b, u32 * next)
-{
- if (PREDICT_FALSE (config->out_vtr_flag))
+ while (n_left)
{
- /* Perform pre-vtr EFP filter check if configured */
- if (config->output_vtr.push_and_pop_bytes)
- {
- /*
- * Perform output vlan tag rewrite and the pre-vtr EFP filter check.
- * The EFP Filter only needs to be run if there is an output VTR
- * configured. The flag for the post-vtr EFP Filter node is used
- * to trigger the pre-vtr check as well.
- */
- u32 failed1 = (feature_bitmap & L2OUTPUT_FEAT_EFP_FILTER)
- && (l2_efp_filter_process (b, &(config->input_vtr)));
- u32 failed2 = l2_vtr_process (b, &(config->output_vtr));
+ if (update_feature_bitmap)
+ vnet_buffer (b[0])->l2.feature_bitmap = config->feature_bitmap;
+ if (l2_vtr)
+ {
+ u32 failed1 = l2_efp &&
+ l2_efp_filter_process (b[0], &(config->input_vtr));
+ u32 failed2 = l2_vtr_process (b[0], &(config->output_vtr));
if (PREDICT_FALSE (failed1 | failed2))
{
*next = L2OUTPUT_NEXT_DROP;
if (failed2)
- {
- b->error = node->errors[L2OUTPUT_ERROR_VTR_DROP];
- }
+ b[0]->error = node->errors[L2OUTPUT_ERROR_VTR_DROP];
if (failed1)
- {
- b->error = node->errors[L2OUTPUT_ERROR_EFP_DROP];
- }
+ b[0]->error = node->errors[L2OUTPUT_ERROR_EFP_DROP];
}
}
- // perform the PBB rewrite
- else if (config->output_pbb_vtr.push_and_pop_bytes)
+
+ if (l2_pbb && l2_pbb_process (b[0], &(config->output_pbb_vtr)))
{
- u32 failed = l2_pbb_process (b, &(config->output_pbb_vtr));
- if (PREDICT_FALSE (failed))
- {
- *next = L2OUTPUT_NEXT_DROP;
- b->error = node->errors[L2OUTPUT_ERROR_VTR_DROP];
- }
+ next[0] = L2OUTPUT_NEXT_DROP;
+ b[0]->error = node->errors[L2OUTPUT_ERROR_VTR_DROP];
}
+
+ if (shg_set)
+ split_horizon_violation (node, config->shg, b[0], next);
+
+ /* next */
+ n_left -= 1;
+ b += 1;
+ next += 1;
}
}
+static_always_inline void
+l2output_set_buffer_error (vlib_buffer_t ** b, u32 n_left, vlib_error_t error)
+{
+ while (n_left >= 8)
+ {
+ 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);
+ b[0]->error = b[1]->error = b[2]->error = b[3]->error = error;
+ b += 4;
+ n_left -= 4;
+ }
+ while (n_left)
+ {
+ b[0]->error = error;
+ b += 1;
+ n_left -= 1;
+ }
+}
-static_always_inline uword
-l2output_node_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
- vlib_frame_t * frame, int do_trace)
+static_always_inline void
+l2output_process_batch (vlib_main_t * vm, vlib_node_runtime_t * node,
+ l2_output_config_t * config, vlib_buffer_t ** b,
+ i16 * cdo, u16 * next, u32 n_left, int l2_efp,
+ int l2_vtr, int l2_pbb)
{
- u32 n_left_from, *from, *to_next;
- l2output_next_t next_index;
- l2output_main_t *msm = &l2output_main;
- u32 cached_sw_if_index;
- u32 cached_next_index;
+ u32 feature_bitmap = config->feature_bitmap & ~L2OUTPUT_FEAT_OUTPUT;
+ if (config->shg == 0 && feature_bitmap == 0)
+ l2output_process_batch_inline (vm, node, config, b, cdo, next, n_left,
+ l2_efp, l2_vtr, l2_pbb, 0, 0);
+ else if (config->shg == 0)
+ l2output_process_batch_inline (vm, node, config, b, cdo, next, n_left,
+ l2_efp, l2_vtr, l2_pbb, 0, 1);
+ else if (feature_bitmap == 0)
+ l2output_process_batch_inline (vm, node, config, b, cdo, next, n_left,
+ l2_efp, l2_vtr, l2_pbb, 1, 0);
+ else
+ l2output_process_batch_inline (vm, node, config, b, cdo, next, n_left,
+ l2_efp, l2_vtr, l2_pbb, 1, 1);
+}
- /* Invalidate cache */
- cached_sw_if_index = ~0;
- cached_next_index = ~0; /* warning be gone */
+uword CLIB_CPU_OPTIMIZED
+CLIB_MULTIARCH_FN (l2output_node_fn) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ u32 n_left, *from;
+ l2output_main_t *msm = &l2output_main;
+ vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b;
+ u16 nexts[VLIB_FRAME_SIZE];
+ u32 sw_if_indices[VLIB_FRAME_SIZE], *sw_if_index;
+ i16 cur_data_offsets[VLIB_FRAME_SIZE], *cdo;
+ l2_output_config_t *config;
+ u32 feature_bitmap;
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 */
- while (n_left_from > 0)
+ vlib_get_buffers (vm, from, bufs, n_left);
+ b = bufs;
+ sw_if_index = sw_if_indices;
+ cdo = cur_data_offsets;
+
+ /* extract data from buffer metadata */
+ while (n_left >= 8)
{
- u32 n_left_to_next;
+ /* 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_TX];
+ cdo[0] = b[0]->current_data;
+ sw_if_index[1] = vnet_buffer (b[1])->sw_if_index[VLIB_TX];
+ cdo[1] = b[1]->current_data;
+ sw_if_index[2] = vnet_buffer (b[2])->sw_if_index[VLIB_TX];
+ cdo[2] = b[2]->current_data;
+ sw_if_index[3] = vnet_buffer (b[3])->sw_if_index[VLIB_TX];
+ cdo[3] = b[3]->current_data;
+
+ /* next */
+ sw_if_index += 4;
+ n_left -= 4;
+ b += 4;
+ cdo += 4;
+ }
+ while (n_left)
+ {
+ sw_if_index[0] = vnet_buffer (b[0])->sw_if_index[VLIB_TX];
+ cdo[0] = b[0]->current_data;
+
+ /* next */
+ sw_if_index += 1;
+ n_left -= 1;
+ b += 1;
+ cdo += 1;
+ }
- /* get space to enqueue frame to graph node "next_index" */
- vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
+ n_left = frame->n_vectors;
+ while (n_left)
+ {
+ u16 count, new_next, *next;
+ u16 off = frame->n_vectors - n_left;
+ b = bufs + off;
- while (n_left_from >= 8 && n_left_to_next >= 4)
+ if (n_left >= 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;
- ethernet_header_t *h0, *h1, *h2, *h3;
- l2_output_config_t *config0, *config1, *config2, *config3;
- u32 feature_bitmap0, feature_bitmap1;
- u32 feature_bitmap2, feature_bitmap3;
-
- /* 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 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);
- }
-
- /* 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);
-
- /* TX interface handles */
- sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_TX];
- sw_if_index1 = vnet_buffer (b1)->sw_if_index[VLIB_TX];
- sw_if_index2 = vnet_buffer (b2)->sw_if_index[VLIB_TX];
- sw_if_index3 = vnet_buffer (b3)->sw_if_index[VLIB_TX];
-
- vlib_node_increment_counter (vm, l2output_node.index,
- L2OUTPUT_ERROR_L2OUTPUT, 4);
-
- /* Get config for the output interface */
- config0 = vec_elt_at_index (msm->configs, sw_if_index0);
- config1 = vec_elt_at_index (msm->configs, sw_if_index1);
- config2 = vec_elt_at_index (msm->configs, sw_if_index2);
- config3 = vec_elt_at_index (msm->configs, sw_if_index3);
-
- /*
- * Get features from the config
- * TODO: mask out any non-applicable features
- */
- feature_bitmap0 = config0->feature_bitmap;
- feature_bitmap1 = config1->feature_bitmap;
- feature_bitmap2 = config2->feature_bitmap;
- feature_bitmap3 = config3->feature_bitmap;
-
- /* Determine next node */
- l2_output_dispatch (b0, node, &cached_sw_if_index,
- &cached_next_index, sw_if_index0,
- feature_bitmap0, &next0);
- l2_output_dispatch (b1, node, &cached_sw_if_index,
- &cached_next_index, sw_if_index1,
- feature_bitmap1, &next1);
- l2_output_dispatch (b2, node, &cached_sw_if_index,
- &cached_next_index, sw_if_index2,
- feature_bitmap2, &next2);
- l2_output_dispatch (b3, node, &cached_sw_if_index,
- &cached_next_index, sw_if_index3,
- feature_bitmap3, &next3);
-
- l2output_vtr (node, config0, feature_bitmap0, b0, &next0);
- l2output_vtr (node, config1, feature_bitmap1, b1, &next1);
- l2output_vtr (node, config2, feature_bitmap2, b2, &next2);
- l2output_vtr (node, config3, feature_bitmap3, b3, &next3);
-
- if (do_trace)
- {
- 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 (b0->flags & VLIB_BUFFER_IS_TRACED)
- {
- l2output_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);
- clib_memcpy (t->raw, &h0->type, sizeof (t->raw));
- }
- if (b1->flags & VLIB_BUFFER_IS_TRACED)
- {
- l2output_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);
- clib_memcpy (t->raw, &h1->type, sizeof (t->raw));
- }
- if (b2->flags & VLIB_BUFFER_IS_TRACED)
- {
- l2output_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);
- clib_memcpy (t->raw, &h2->type, sizeof (t->raw));
- }
- if (b3->flags & VLIB_BUFFER_IS_TRACED)
- {
- l2output_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);
- clib_memcpy (t->raw, &h3->type, sizeof (t->raw));
- }
- }
-
- /*
- * Perform the split horizon check
- * The check can only fail for non-zero shg's
- */
- if (PREDICT_FALSE (config0->shg + config1->shg +
- config2->shg + config3->shg))
- {
- /* one of the checks might fail, check both */
- if (split_horizon_violation
- (config0->shg, vnet_buffer (b0)->l2.shg))
- {
- next0 = L2OUTPUT_NEXT_DROP;
- b0->error = node->errors[L2OUTPUT_ERROR_SHG_DROP];
- }
- if (split_horizon_violation
- (config1->shg, vnet_buffer (b1)->l2.shg))
- {
- next1 = L2OUTPUT_NEXT_DROP;
- b1->error = node->errors[L2OUTPUT_ERROR_SHG_DROP];
- }
- if (split_horizon_violation
- (config2->shg, vnet_buffer (b2)->l2.shg))
- {
- next2 = L2OUTPUT_NEXT_DROP;
- b2->error = node->errors[L2OUTPUT_ERROR_SHG_DROP];
- }
- if (split_horizon_violation
- (config3->shg, vnet_buffer (b3)->l2.shg))
- {
- next3 = L2OUTPUT_NEXT_DROP;
- b3->error = node->errors[L2OUTPUT_ERROR_SHG_DROP];
- }
- }
-
- /* 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);
+ 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);
}
- 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;
- l2_output_config_t *config0;
- u32 feature_bitmap0;
+ sw_if_index = sw_if_indices + off;
+ cdo = cur_data_offsets + off;
+ next = nexts + off;
- /* 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);
-
- sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_TX];
+ count = clib_count_equal_u32 (sw_if_index, n_left);
+ n_left -= count;
- vlib_node_increment_counter (vm, l2output_node.index,
- L2OUTPUT_ERROR_L2OUTPUT, 1);
+ config = vec_elt_at_index (msm->configs, sw_if_index[0]);
+ feature_bitmap = config->feature_bitmap;
+ if (PREDICT_FALSE ((feature_bitmap & ~L2OUTPUT_FEAT_OUTPUT) != 0))
+ new_next = feat_bitmap_get_next_node_index
+ (l2output_main.l2_out_feat_next, feature_bitmap);
+ else
+ new_next = vec_elt (l2output_main.output_node_index_vec,
+ sw_if_index[0]);
+ clib_memset_u16 (nexts + off, new_next, count);
- /* Get config for the output interface */
- config0 = vec_elt_at_index (msm->configs, sw_if_index0);
+ if (new_next == L2OUTPUT_NEXT_DROP)
+ {
+ l2output_set_buffer_error
+ (b, count, node->errors[L2OUTPUT_ERROR_MAPPING_DROP]);
+ continue;
+ }
- /*
- * Get features from the config
- * TODO: mask out any non-applicable features
- */
- feature_bitmap0 = config0->feature_bitmap;
+ /* VTR */
+ if (config->out_vtr_flag && config->output_vtr.push_and_pop_bytes)
+ {
+ if (feature_bitmap & L2OUTPUT_FEAT_EFP_FILTER)
+ l2output_process_batch (vm, node, config, b, cdo, next, count,
+ /* l2_efp */ 1,
+ /* l2_vtr */ 1,
+ /* l2_pbb */ 0);
+ else
+ l2output_process_batch (vm, node, config, b, cdo, next, count,
+ /* l2_efp */ 0,
+ /* l2_vtr */ 1,
+ /* l2_pbb */ 0);
+ }
+ else if (config->out_vtr_flag &&
+ config->output_pbb_vtr.push_and_pop_bytes)
+ l2output_process_batch (vm, node, config, b, cdo, next, count,
+ /* l2_efp */ 0,
+ /* l2_vtr */ 0,
+ /* l2_pbb */ 1);
+ else
+ l2output_process_batch (vm, node, config, b, cdo, next, count,
+ /* l2_efp */ 0,
+ /* l2_vtr */ 0,
+ /* l2_pbb */ 0);
+ }
- /* Determine next node */
- l2_output_dispatch (b0, node, &cached_sw_if_index,
- &cached_next_index, sw_if_index0,
- feature_bitmap0, &next0);
- l2output_vtr (node, config0, feature_bitmap0, b0, &next0);
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)))
+ {
+ n_left = frame->n_vectors; /* number of packets to process */
+ b = bufs;
- if (do_trace && PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
+ while (n_left)
+ {
+ if (PREDICT_FALSE (b[0]->flags & VLIB_BUFFER_IS_TRACED))
{
+ ethernet_header_t *h;
l2output_trace_t *t =
- vlib_add_trace (vm, node, b0, sizeof (*t));
- t->sw_if_index = sw_if_index0;
- h0 = vlib_buffer_get_current (b0);
- clib_memcpy (t->src, h0->src_address, 6);
- clib_memcpy (t->dst, h0->dst_address, 6);
- clib_memcpy (t->raw, &h0->type, sizeof (t->raw));
+ vlib_add_trace (vm, node, b[0], sizeof (*t));
+ t->sw_if_index = vnet_buffer (b[0])->sw_if_index[VLIB_TX];
+ h = vlib_buffer_get_current (b[0]);
+ clib_memcpy (t->src, h->src_address, 6);
+ clib_memcpy (t->dst, h->dst_address, 6);
+ clib_memcpy (t->raw, &h->type, sizeof (t->raw));
}
-
- /* Perform the split horizon check */
- if (PREDICT_FALSE
- (split_horizon_violation
- (config0->shg, vnet_buffer (b0)->l2.shg)))
- {
- next0 = L2OUTPUT_NEXT_DROP;
- b0->error = node->errors[L2OUTPUT_ERROR_SHG_DROP];
- }
-
- /* 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);
}
- return frame->n_vectors;
-}
+ vlib_buffer_enqueue_to_next (vm, node, from, nexts, frame->n_vectors);
+ vlib_node_increment_counter (vm, l2output_node.index,
+ L2OUTPUT_ERROR_L2OUTPUT, frame->n_vectors);
-static uword
-l2output_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * frame)
-{
- if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)))
- return l2output_node_inline (vm, node, frame, 1 /* do_trace */ );
- return l2output_node_inline (vm, node, frame, 0 /* do_trace */ );
+ return frame->n_vectors;
}
+#ifndef CLIB_MULTIARCH_VARIANT
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (l2output_node) = {
.function = l2output_node_fn,
@@ -517,7 +452,19 @@ VLIB_REGISTER_NODE (l2output_node) = {
},
};
-VLIB_NODE_FUNCTION_MULTIARCH (l2output_node, l2output_node_fn);
+#if __x86_64__
+vlib_node_function_t __clib_weak l2output_node_fn_avx512;
+vlib_node_function_t __clib_weak l2output_node_fn_avx2;
+static void __clib_constructor
+l2output_multiarch_select (void)
+{
+ if (l2output_node_fn_avx512 && clib_cpu_supports_avx512f ())
+ l2output_node.function = l2output_node_fn_avx512;
+ else if (l2output_node_fn_avx2 && clib_cpu_supports_avx2 ())
+ l2output_node.function = l2output_node_fn_avx2;
+}
+#endif
+
/* *INDENT-ON* */
@@ -700,6 +647,7 @@ l2output_intf_bitmap_enable (u32 sw_if_index, u32 feature_bitmap, u32 enable)
config->feature_bitmap &= ~feature_bitmap;
}
}
+#endif
/*
* fd.io coding-style-patch-verification: ON