/*
- * Copyright (c) 2015 Cisco and/or its affiliates.
+ * Copyright (c) 2018 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
#include <vnet/pg/pg.h>
#include <vnet/ethernet/ethernet.h>
#include <vnet/ethernet/p2p_ethernet.h>
+#include <vnet/devices/pipe/pipe.h>
#include <vppinfra/sparse_vec.h>
#include <vnet/l2/l2_bvi.h>
-
#define foreach_ethernet_input_next \
_ (PUNT, "error-punt") \
_ (DROP, "error-drop") \
- _ (LLC, "llc-input")
+ _ (LLC, "llc-input") \
+ _ (IP4_INPUT, "ip4-input") \
+ _ (IP4_INPUT_NCS, "ip4-input-no-checksum")
typedef enum
{
typedef struct
{
u8 packet_data[32];
+ u16 frame_flags;
+ ethernet_input_frame_t frame_data;
} ethernet_input_trace_t;
static u8 *
CLIB_UNUSED (vlib_main_t * vm) = va_arg (*va, vlib_main_t *);
CLIB_UNUSED (vlib_node_t * node) = va_arg (*va, vlib_node_t *);
ethernet_input_trace_t *t = va_arg (*va, ethernet_input_trace_t *);
+ u32 indent = format_get_indent (s);
+ if (t->frame_flags)
+ {
+ s = format (s, "frame: flags 0x%x", t->frame_flags);
+ if (t->frame_flags & ETH_INPUT_FRAME_F_SINGLE_SW_IF_IDX)
+ s = format (s, ", hw-if-index %u, sw-if-index %u",
+ t->frame_data.hw_if_index, t->frame_data.sw_if_index);
+ s = format (s, "\n%U", format_white_space, indent);
+ }
s = format (s, "%U", format_ethernet_header, t->packet_data);
return s;
}
-vlib_node_registration_t ethernet_input_node;
+extern vlib_node_registration_t ethernet_input_node;
typedef enum
{
{
u32 matched;
- matched = eth_identify_subint (hi, b0, match_flags,
- main_intf, vlan_intf, qinq_intf,
- new_sw_if_index, error0, is_l2);
+ matched = eth_identify_subint (hi, match_flags, main_intf, vlan_intf,
+ qinq_intf, new_sw_if_index, error0, is_l2);
if (matched)
{
u32 is_l20,
u32 type0, vlib_buffer_t * b0, u8 * error0, u8 * next0)
{
- u32 eth_start = vnet_buffer (b0)->l2_hdr_offset;
- vnet_buffer (b0)->l2.l2_len = b0->current_data - eth_start;
+ vnet_buffer (b0)->l3_hdr_offset = b0->current_data;
+ b0->flags |= VNET_BUFFER_F_L3_HDR_OFFSET_VALID;
+
if (PREDICT_FALSE (*error0 != ETHERNET_ERROR_NONE))
{
// some error occurred
}
else if (is_l20)
{
- *next0 = em->l2_next;
// record the L2 len and reset the buffer so the L2 header is preserved
+ u32 eth_start = vnet_buffer (b0)->l2_hdr_offset;
+ vnet_buffer (b0)->l2.l2_len = b0->current_data - eth_start;
+ *next0 = em->l2_next;
ASSERT (vnet_buffer (b0)->l2.l2_len ==
ethernet_buffer_header_size (b0));
- vlib_buffer_advance (b0, -ethernet_buffer_header_size (b0));
+ vlib_buffer_advance (b0, -(vnet_buffer (b0)->l2.l2_len));
// check for common IP/MPLS ethertypes
}
}
}
-static_always_inline int
-ethernet_frame_is_any_tagged (u16 type0, u16 type1)
+
+/* following vector code relies on following assumptions */
+STATIC_ASSERT_OFFSET_OF (vlib_buffer_t, current_data, 0);
+STATIC_ASSERT_OFFSET_OF (vlib_buffer_t, current_length, 2);
+STATIC_ASSERT_OFFSET_OF (vlib_buffer_t, flags, 4);
+STATIC_ASSERT (STRUCT_OFFSET_OF (vnet_buffer_opaque_t, l2_hdr_offset) ==
+ STRUCT_OFFSET_OF (vnet_buffer_opaque_t, l3_hdr_offset) - 2,
+ "l3_hdr_offset must follow l2_hdr_offset");
+
+static_always_inline void
+eth_input_adv_and_flags_x4 (vlib_buffer_t ** b, int is_l3)
{
-#if __SSE4_2__
- const __m128i ethertype_mask = _mm_set_epi16 ((u16) ETHERNET_TYPE_VLAN,
- (u16) ETHERNET_TYPE_DOT1AD,
- (u16) ETHERNET_TYPE_VLAN_9100,
- (u16) ETHERNET_TYPE_VLAN_9200,
- /* duplicate for type1 */
- (u16) ETHERNET_TYPE_VLAN,
- (u16) ETHERNET_TYPE_DOT1AD,
- (u16) ETHERNET_TYPE_VLAN_9100,
- (u16)
- ETHERNET_TYPE_VLAN_9200);
-
- __m128i r =
- _mm_set_epi16 (type0, type0, type0, type0, type1, type1, type1, type1);
- r = _mm_cmpeq_epi16 (ethertype_mask, r);
- return !_mm_test_all_zeros (r, r);
+ i16 adv = sizeof (ethernet_header_t);
+ u32 flags = VNET_BUFFER_F_L2_HDR_OFFSET_VALID |
+ VNET_BUFFER_F_L3_HDR_OFFSET_VALID;
+
+#ifdef CLIB_HAVE_VEC256
+ /* to reduce number of small loads/stores we are loading first 64 bits
+ of each buffer metadata into 256-bit register so we can advance
+ current_data, current_length and flags.
+ Observed saving of this code is ~2 clocks per packet */
+ u64x4 r, radv;
+
+ /* vector if signed 16 bit integers used in signed vector add operation
+ to advnce current_data and current_length */
+ u32x8 flags4 = { 0, flags, 0, flags, 0, flags, 0, flags };
+ i16x16 adv4 = {
+ adv, -adv, 0, 0, adv, -adv, 0, 0,
+ adv, -adv, 0, 0, adv, -adv, 0, 0
+ };
+
+ /* load 4 x 64 bits */
+ r = u64x4_gather (b[0], b[1], b[2], b[3]);
+
+ /* set flags */
+ r |= (u64x4) flags4;
+
+ /* advance buffer */
+ radv = (u64x4) ((i16x16) r + adv4);
+
+ /* write 4 x 64 bits */
+ u64x4_scatter (is_l3 ? radv : r, b[0], b[1], b[2], b[3]);
+
+ /* use old current_data as l2_hdr_offset and new current_data as
+ l3_hdr_offset */
+ r = (u64x4) u16x16_blend (r, radv << 16, 0xaa);
+
+ /* store both l2_hdr_offset and l3_hdr_offset in single store operation */
+ u32x8_scatter_one ((u32x8) r, 0, &vnet_buffer (b[0])->l2_hdr_offset);
+ u32x8_scatter_one ((u32x8) r, 2, &vnet_buffer (b[1])->l2_hdr_offset);
+ u32x8_scatter_one ((u32x8) r, 4, &vnet_buffer (b[2])->l2_hdr_offset);
+ u32x8_scatter_one ((u32x8) r, 6, &vnet_buffer (b[3])->l2_hdr_offset);
+
+ if (is_l3)
+ {
+ ASSERT (b[0]->current_data == vnet_buffer (b[0])->l3_hdr_offset);
+ ASSERT (b[1]->current_data == vnet_buffer (b[1])->l3_hdr_offset);
+ ASSERT (b[2]->current_data == vnet_buffer (b[2])->l3_hdr_offset);
+ ASSERT (b[3]->current_data == vnet_buffer (b[3])->l3_hdr_offset);
+
+ ASSERT (b[0]->current_data - vnet_buffer (b[0])->l2_hdr_offset == adv);
+ ASSERT (b[1]->current_data - vnet_buffer (b[1])->l2_hdr_offset == adv);
+ ASSERT (b[2]->current_data - vnet_buffer (b[2])->l2_hdr_offset == adv);
+ ASSERT (b[3]->current_data - vnet_buffer (b[3])->l2_hdr_offset == adv);
+ }
+ else
+ {
+ ASSERT (b[0]->current_data == vnet_buffer (b[0])->l2_hdr_offset);
+ ASSERT (b[1]->current_data == vnet_buffer (b[1])->l2_hdr_offset);
+ ASSERT (b[2]->current_data == vnet_buffer (b[2])->l2_hdr_offset);
+ ASSERT (b[3]->current_data == vnet_buffer (b[3])->l2_hdr_offset);
+
+ ASSERT (b[0]->current_data - vnet_buffer (b[0])->l3_hdr_offset == -adv);
+ ASSERT (b[1]->current_data - vnet_buffer (b[1])->l3_hdr_offset == -adv);
+ ASSERT (b[2]->current_data - vnet_buffer (b[2])->l3_hdr_offset == -adv);
+ ASSERT (b[3]->current_data - vnet_buffer (b[3])->l3_hdr_offset == -adv);
+ }
+
#else
- return ethernet_frame_is_tagged (type0) || ethernet_frame_is_tagged (type1);
+ vnet_buffer (b[0])->l2_hdr_offset = b[0]->current_data;
+ vnet_buffer (b[1])->l2_hdr_offset = b[1]->current_data;
+ vnet_buffer (b[2])->l2_hdr_offset = b[2]->current_data;
+ vnet_buffer (b[3])->l2_hdr_offset = b[3]->current_data;
+ vnet_buffer (b[0])->l3_hdr_offset = b[0]->current_data + adv;
+ vnet_buffer (b[1])->l3_hdr_offset = b[1]->current_data + adv;
+ vnet_buffer (b[2])->l3_hdr_offset = b[2]->current_data + adv;
+ vnet_buffer (b[3])->l3_hdr_offset = b[3]->current_data + adv;
+
+ if (is_l3)
+ {
+ vlib_buffer_advance (b[0], adv);
+ vlib_buffer_advance (b[1], adv);
+ vlib_buffer_advance (b[2], adv);
+ vlib_buffer_advance (b[3], adv);
+ }
+
+ b[0]->flags |= flags;
+ b[1]->flags |= flags;
+ b[2]->flags |= flags;
+ b[3]->flags |= flags;
#endif
+
+ if (!is_l3)
+ {
+ vnet_buffer (b[0])->l2.l2_len = adv;
+ vnet_buffer (b[1])->l2.l2_len = adv;
+ vnet_buffer (b[2])->l2.l2_len = adv;
+ vnet_buffer (b[3])->l2.l2_len = adv;
+ }
+}
+
+static_always_inline void
+eth_input_adv_and_flags_x1 (vlib_buffer_t ** b, int is_l3)
+{
+ i16 adv = sizeof (ethernet_header_t);
+ u32 flags = VNET_BUFFER_F_L2_HDR_OFFSET_VALID |
+ VNET_BUFFER_F_L3_HDR_OFFSET_VALID;
+
+ vnet_buffer (b[0])->l2_hdr_offset = b[0]->current_data;
+ vnet_buffer (b[0])->l3_hdr_offset = b[0]->current_data + adv;
+
+ if (is_l3)
+ vlib_buffer_advance (b[0], adv);
+ b[0]->flags |= flags;
+ if (!is_l3)
+ vnet_buffer (b[0])->l2.l2_len = adv;
+}
+
+
+static_always_inline void
+eth_input_get_etype_and_tags (vlib_buffer_t ** b, u16 * etype, u64 * tags,
+ u64 * dmacs, int offset, int dmac_check)
+{
+ ethernet_header_t *e;
+ e = vlib_buffer_get_current (b[offset]);
+#ifdef CLIB_HAVE_VEC128
+ u64x2 r = u64x2_load_unaligned (((u8 *) & e->type) - 6);
+ etype[offset] = ((u16x8) r)[3];
+ tags[offset] = r[1];
+#else
+ etype[offset] = e->type;
+ tags[offset] = *(u64 *) (e + 1);
+#endif
+
+ if (dmac_check)
+ dmacs[offset] = *(u64 *) e;
+}
+
+static_always_inline u16
+eth_input_next_by_type (u16 etype)
+{
+ ethernet_main_t *em = ðernet_main;
+
+ return (etype < 0x600) ? ETHERNET_INPUT_NEXT_LLC :
+ vec_elt (em->l3_next.input_next_by_type,
+ sparse_vec_index (em->l3_next.input_next_by_type, etype));
+}
+
+typedef struct
+{
+ u64 tag, mask;
+ u32 sw_if_index;
+ u16 type, len, next;
+ i16 adv;
+ u8 err, n_tags;
+ u64 n_packets, n_bytes;
+} eth_input_tag_lookup_t;
+
+static_always_inline void
+eth_input_update_if_counters (vlib_main_t * vm, vnet_main_t * vnm,
+ eth_input_tag_lookup_t * l)
+{
+ if (l->n_packets == 0 || l->sw_if_index == ~0)
+ return;
+
+ if (l->adv > 0)
+ l->n_bytes += l->n_packets * l->len;
+
+ vlib_increment_combined_counter
+ (vnm->interface_main.combined_sw_if_counters +
+ VNET_INTERFACE_COUNTER_RX, vm->thread_index, l->sw_if_index,
+ l->n_packets, l->n_bytes);
+}
+
+static_always_inline void
+eth_input_tag_lookup (vlib_main_t * vm, vnet_main_t * vnm,
+ vlib_node_runtime_t * node, vnet_hw_interface_t * hi,
+ u64 tag, u16 * next, vlib_buffer_t * b,
+ eth_input_tag_lookup_t * l, u8 dmac_bad, int is_dot1ad,
+ int main_is_l3, int check_dmac)
+{
+ ethernet_main_t *em = ðernet_main;
+
+ if ((tag ^ l->tag) & l->mask)
+ {
+ main_intf_t *mif = vec_elt_at_index (em->main_intfs, hi->hw_if_index);
+ vlan_intf_t *vif;
+ qinq_intf_t *qif;
+ vlan_table_t *vlan_table;
+ qinq_table_t *qinq_table;
+ u16 *t = (u16 *) & tag;
+ u16 vlan1 = clib_net_to_host_u16 (t[0]) & 0xFFF;
+ u16 vlan2 = clib_net_to_host_u16 (t[2]) & 0xFFF;
+ u32 matched, is_l2, new_sw_if_index;
+
+ vlan_table = vec_elt_at_index (em->vlan_pool, is_dot1ad ?
+ mif->dot1ad_vlans : mif->dot1q_vlans);
+ vif = &vlan_table->vlans[vlan1];
+ qinq_table = vec_elt_at_index (em->qinq_pool, vif->qinqs);
+ qif = &qinq_table->vlans[vlan2];
+ l->err = ETHERNET_ERROR_NONE;
+ l->type = clib_net_to_host_u16 (t[1]);
+
+ if (l->type == ETHERNET_TYPE_VLAN)
+ {
+ l->type = clib_net_to_host_u16 (t[3]);
+ l->n_tags = 2;
+ matched = eth_identify_subint (hi, SUBINT_CONFIG_VALID |
+ SUBINT_CONFIG_MATCH_2_TAG, mif, vif,
+ qif, &new_sw_if_index, &l->err,
+ &is_l2);
+ }
+ else
+ {
+ l->n_tags = 1;
+ if (vlan1 == 0)
+ {
+ new_sw_if_index = hi->sw_if_index;
+ l->err = ETHERNET_ERROR_NONE;
+ matched = 1;
+ is_l2 = main_is_l3 == 0;
+ }
+ else
+ matched = eth_identify_subint (hi, SUBINT_CONFIG_VALID |
+ SUBINT_CONFIG_MATCH_1_TAG, mif,
+ vif, qif, &new_sw_if_index,
+ &l->err, &is_l2);
+ }
+
+ if (l->sw_if_index != new_sw_if_index)
+ {
+ eth_input_update_if_counters (vm, vnm, l);
+ l->n_packets = 0;
+ l->n_bytes = 0;
+ l->sw_if_index = new_sw_if_index;
+ }
+ l->tag = tag;
+ l->mask = (l->n_tags == 2) ?
+ clib_net_to_host_u64 (0xffffffffffffffff) :
+ clib_net_to_host_u64 (0xffffffff00000000);
+
+ if (matched && l->sw_if_index == ~0)
+ l->err = ETHERNET_ERROR_DOWN;
+
+ l->len = sizeof (ethernet_header_t) +
+ l->n_tags * sizeof (ethernet_vlan_header_t);
+ if (main_is_l3)
+ l->adv = is_l2 ? -(int) sizeof (ethernet_header_t) :
+ l->n_tags * sizeof (ethernet_vlan_header_t);
+ else
+ l->adv = is_l2 ? 0 : l->len;
+
+ if (PREDICT_FALSE (l->err != ETHERNET_ERROR_NONE))
+ l->next = ETHERNET_INPUT_NEXT_DROP;
+ else if (is_l2)
+ l->next = em->l2_next;
+ else if (l->type == ETHERNET_TYPE_IP4)
+ l->next = em->l3_next.input_next_ip4;
+ else if (l->type == ETHERNET_TYPE_IP6)
+ l->next = em->l3_next.input_next_ip6;
+ else if (l->type == ETHERNET_TYPE_MPLS)
+ l->next = em->l3_next.input_next_mpls;
+ else if (em->redirect_l3)
+ l->next = em->redirect_l3_next;
+ else
+ {
+ l->next = eth_input_next_by_type (l->type);
+ if (l->next == ETHERNET_INPUT_NEXT_PUNT)
+ l->err = ETHERNET_ERROR_UNKNOWN_TYPE;
+ }
+ }
+
+ if (check_dmac && l->adv > 0 && dmac_bad)
+ {
+ l->err = ETHERNET_ERROR_L3_MAC_MISMATCH;
+ next[0] = ETHERNET_INPUT_NEXT_PUNT;
+ }
+ else
+ next[0] = l->next;
+
+ vlib_buffer_advance (b, l->adv);
+ vnet_buffer (b)->l2.l2_len = l->len;
+ vnet_buffer (b)->l3_hdr_offset = vnet_buffer (b)->l2_hdr_offset + l->len;
+
+ if (l->err == ETHERNET_ERROR_NONE)
+ {
+ vnet_buffer (b)->sw_if_index[VLIB_RX] = l->sw_if_index;
+ ethernet_buffer_set_vlan_count (b, l->n_tags);
+ }
+ else
+ b->error = node->errors[l->err];
+
+ /* update counters */
+ l->n_packets += 1;
+ l->n_bytes += vlib_buffer_length_in_chain (vm, b);
}
-static_always_inline uword
+/* process frame of buffers, store ethertype into array and update
+ buffer metadata fields depending on interface being l2 or l3 assuming that
+ packets are untagged. For tagged packets those fields are updated later.
+ Optionally store Destionation MAC address and tag data into arrays
+ for further processing */
+
+STATIC_ASSERT (VLIB_FRAME_SIZE % 8 == 0,
+ "VLIB_FRAME_SIZE must be power of 8");
+static_always_inline void
+eth_input_process_frame (vlib_main_t * vm, vlib_node_runtime_t * node,
+ vnet_hw_interface_t * hi,
+ u32 * buffer_indices, u32 n_packets, int main_is_l3,
+ int ip4_cksum_ok, int dmac_check)
+{
+ ethernet_main_t *em = ðernet_main;
+ u16 nexts[VLIB_FRAME_SIZE], *next;
+ u16 etypes[VLIB_FRAME_SIZE], *etype = etypes;
+ u64 dmacs[VLIB_FRAME_SIZE], *dmac = dmacs;
+ u8 dmacs_bad[VLIB_FRAME_SIZE];
+ u64 tags[VLIB_FRAME_SIZE], *tag = tags;
+ u16 slowpath_indices[VLIB_FRAME_SIZE];
+ u16 n_slowpath, i;
+ u16 next_ip4, next_ip6, next_mpls, next_l2;
+ u16 et_ip4 = clib_host_to_net_u16 (ETHERNET_TYPE_IP4);
+ u16 et_ip6 = clib_host_to_net_u16 (ETHERNET_TYPE_IP6);
+ u16 et_mpls = clib_host_to_net_u16 (ETHERNET_TYPE_MPLS);
+ u16 et_vlan = clib_host_to_net_u16 (ETHERNET_TYPE_VLAN);
+ u16 et_dot1ad = clib_host_to_net_u16 (ETHERNET_TYPE_DOT1AD);
+ i32 n_left = n_packets;
+ vlib_buffer_t *b[20];
+ u32 *from;
+
+ from = buffer_indices;
+
+ while (n_left >= 20)
+ {
+ vlib_buffer_t **ph = b + 16, **pd = b + 8;
+ vlib_get_buffers (vm, from, b, 4);
+ vlib_get_buffers (vm, from + 8, pd, 4);
+ vlib_get_buffers (vm, from + 16, ph, 4);
+
+ vlib_prefetch_buffer_header (ph[0], LOAD);
+ vlib_prefetch_buffer_data (pd[0], LOAD);
+ eth_input_get_etype_and_tags (b, etype, tag, dmac, 0, dmac_check);
+
+ vlib_prefetch_buffer_header (ph[1], LOAD);
+ vlib_prefetch_buffer_data (pd[1], LOAD);
+ eth_input_get_etype_and_tags (b, etype, tag, dmac, 1, dmac_check);
+
+ vlib_prefetch_buffer_header (ph[2], LOAD);
+ vlib_prefetch_buffer_data (pd[2], LOAD);
+ eth_input_get_etype_and_tags (b, etype, tag, dmac, 2, dmac_check);
+
+ vlib_prefetch_buffer_header (ph[3], LOAD);
+ vlib_prefetch_buffer_data (pd[3], LOAD);
+ eth_input_get_etype_and_tags (b, etype, tag, dmac, 3, dmac_check);
+
+ eth_input_adv_and_flags_x4 (b, main_is_l3);
+
+ /* next */
+ n_left -= 4;
+ etype += 4;
+ tag += 4;
+ dmac += 4;
+ from += 4;
+ }
+ while (n_left >= 4)
+ {
+ vlib_get_buffers (vm, from, b, 4);
+ eth_input_get_etype_and_tags (b, etype, tag, dmac, 0, dmac_check);
+ eth_input_get_etype_and_tags (b, etype, tag, dmac, 1, dmac_check);
+ eth_input_get_etype_and_tags (b, etype, tag, dmac, 2, dmac_check);
+ eth_input_get_etype_and_tags (b, etype, tag, dmac, 3, dmac_check);
+ eth_input_adv_and_flags_x4 (b, main_is_l3);
+
+ /* next */
+ n_left -= 4;
+ etype += 4;
+ tag += 4;
+ dmac += 4;
+ from += 4;
+ }
+ while (n_left)
+ {
+ vlib_get_buffers (vm, from, b, 1);
+ eth_input_get_etype_and_tags (b, etype, tag, dmac, 0, dmac_check);
+ eth_input_adv_and_flags_x1 (b, main_is_l3);
+
+ /* next */
+ n_left -= 1;
+ etype += 1;
+ tag += 1;
+ dmac += 4;
+ from += 1;
+ }
+
+ if (dmac_check)
+ {
+ u64 mask = clib_net_to_host_u64 (0xFFFFFFFFFFFF0000);
+ u64 igbit = clib_net_to_host_u64 (0x0100000000000000);
+ u64 hwaddr = (*(u64 *) hi->hw_address) & mask;
+ u64 *dmac = dmacs;
+ u8 *dmac_bad = dmacs_bad;
+
+ n_left = n_packets;
+
+#ifdef CLIB_HAVE_VEC256
+ u64x4 igbit4 = u64x4_splat (igbit);
+ u64x4 mask4 = u64x4_splat (mask);
+ u64x4 hwaddr4 = u64x4_splat (hwaddr);
+ while (n_left >= 0)
+ {
+ u64x4 r0, r1;
+ r0 = u64x4_load_unaligned (dmac + 0) & mask4;
+ r1 = u64x4_load_unaligned (dmac + 4) & mask4;
+
+ r0 = (r0 != hwaddr4) & ((r0 & igbit4) == 0);
+ r1 = (r1 != hwaddr4) & ((r1 & igbit4) == 0);
+
+ *(u32 *) (dmac_bad + 0) = u8x32_msb_mask ((u8x32) (r0));
+ *(u32 *) (dmac_bad + 4) = u8x32_msb_mask ((u8x32) (r1));
+
+ /* next */
+ dmac += 8;
+ dmac_bad += 8;
+ n_left -= 8;
+ }
+#else
+ while (n_left > 0)
+ {
+ u64 r0, r1, r2, r3;
+ r0 = dmac[0] & mask;
+ r1 = dmac[1] & mask;
+ r2 = dmac[2] & mask;
+ r3 = dmac[3] & mask;
+
+ r0 = (r0 != hwaddr) && ((r0 & igbit) == 0);
+ r1 = (r1 != hwaddr) && ((r1 & igbit) == 0);
+ r2 = (r2 != hwaddr) && ((r2 & igbit) == 0);
+ r3 = (r3 != hwaddr) && ((r3 & igbit) == 0);
+
+ dmac_bad[0] = r0;
+ dmac_bad[1] = r1;
+ dmac_bad[2] = r2;
+ dmac_bad[3] = r3;
+
+ /* next */
+ dmac += 4;
+ dmac_bad += 4;
+ n_left -= 4;
+ }
+#endif
+ }
+
+ next_ip4 = em->l3_next.input_next_ip4;
+ next_ip6 = em->l3_next.input_next_ip6;
+ next_mpls = em->l3_next.input_next_mpls;
+ next_l2 = em->l2_next;
+
+ if (next_ip4 == ETHERNET_INPUT_NEXT_IP4_INPUT && ip4_cksum_ok)
+ next_ip4 = ETHERNET_INPUT_NEXT_IP4_INPUT_NCS;
+
+#ifdef CLIB_HAVE_VEC256
+ u16x16 et16_ip4 = u16x16_splat (et_ip4);
+ u16x16 et16_ip6 = u16x16_splat (et_ip6);
+ u16x16 et16_mpls = u16x16_splat (et_mpls);
+ u16x16 et16_vlan = u16x16_splat (et_vlan);
+ u16x16 et16_dot1ad = u16x16_splat (et_dot1ad);
+ u16x16 next16_ip4 = u16x16_splat (next_ip4);
+ u16x16 next16_ip6 = u16x16_splat (next_ip6);
+ u16x16 next16_mpls = u16x16_splat (next_mpls);
+ u16x16 next16_l2 = u16x16_splat (next_l2);
+ u16x16 zero = { 0 };
+ u16x16 stairs = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 };
+#endif
+
+ etype = etypes;
+ n_left = n_packets;
+ next = nexts;
+ n_slowpath = 0;
+ i = 0;
+
+ /* fastpath - in l3 mode hadles ip4, ip6 and mpls packets, other packets
+ are considered as slowpath, in l2 mode all untagged packets are
+ considered as fastpath */
+ while (n_left > 0)
+ {
+#ifdef CLIB_HAVE_VEC256
+ if (n_left >= 16)
+ {
+ u16x16 r = zero;
+ u16x16 e16 = u16x16_load_unaligned (etype);
+ if (main_is_l3)
+ {
+ r += (e16 == et16_ip4) & next16_ip4;
+ r += (e16 == et16_ip6) & next16_ip6;
+ r += (e16 == et16_mpls) & next16_mpls;
+ }
+ else
+ r = ((e16 != et16_vlan) & (e16 != et16_dot1ad)) & next16_l2;
+ u16x16_store_unaligned (r, next);
+
+ if (!u16x16_is_all_zero (r == zero))
+ {
+ if (u16x16_is_all_zero (r))
+ {
+ u16x16_store_unaligned (u16x16_splat (i) + stairs,
+ slowpath_indices + n_slowpath);
+ n_slowpath += 16;
+ }
+ else
+ {
+ for (int j = 0; j < 16; j++)
+ if (next[j] == 0)
+ slowpath_indices[n_slowpath++] = i + j;
+ }
+ }
+
+ etype += 16;
+ next += 16;
+ n_left -= 16;
+ i += 16;
+ continue;
+ }
+#endif
+ if (main_is_l3 && etype[0] == et_ip4)
+ next[0] = next_ip4;
+ else if (main_is_l3 && etype[0] == et_ip6)
+ next[0] = next_ip6;
+ else if (main_is_l3 && etype[0] == et_mpls)
+ next[0] = next_mpls;
+ else if (main_is_l3 == 0 &&
+ etype[0] != et_vlan && etype[0] != et_dot1ad)
+ next[0] = next_l2;
+ else
+ {
+ next[0] = 0;
+ slowpath_indices[n_slowpath++] = i;
+ }
+
+ etype += 1;
+ next += 1;
+ n_left -= 1;
+ i += 1;
+ }
+
+ if (n_slowpath)
+ {
+ vnet_main_t *vnm = vnet_get_main ();
+ n_left = n_slowpath;
+ u16 *si = slowpath_indices;
+ u32 last_unknown_etype = ~0;
+ u32 last_unknown_next = ~0;
+ eth_input_tag_lookup_t dot1ad_lookup, dot1q_lookup = {
+ .mask = -1LL,
+ .tag = tags[si[0]] ^ -1LL,
+ .sw_if_index = ~0
+ };
+
+ clib_memcpy_fast (&dot1ad_lookup, &dot1q_lookup, sizeof (dot1q_lookup));
+
+ while (n_left)
+ {
+ i = si[0];
+ u16 etype = etypes[i];
+
+ if (etype == et_vlan)
+ {
+ vlib_buffer_t *b = vlib_get_buffer (vm, buffer_indices[i]);
+ eth_input_tag_lookup (vm, vnm, node, hi, tags[i], nexts + i, b,
+ &dot1q_lookup, dmacs_bad[i], 0,
+ main_is_l3, dmac_check);
+
+ }
+ else if (etype == et_dot1ad)
+ {
+ vlib_buffer_t *b = vlib_get_buffer (vm, buffer_indices[i]);
+ eth_input_tag_lookup (vm, vnm, node, hi, tags[i], nexts + i, b,
+ &dot1ad_lookup, dmacs_bad[i], 1,
+ main_is_l3, dmac_check);
+ }
+ else
+ {
+ /* untagged packet with not well known etyertype */
+ if (last_unknown_etype != etype)
+ {
+ last_unknown_etype = etype;
+ etype = clib_host_to_net_u16 (etype);
+ last_unknown_next = eth_input_next_by_type (etype);
+ }
+ if (dmac_check && main_is_l3 && dmacs_bad[i])
+ {
+ vlib_buffer_t *b = vlib_get_buffer (vm, buffer_indices[i]);
+ b->error = node->errors[ETHERNET_ERROR_L3_MAC_MISMATCH];
+ nexts[i] = ETHERNET_INPUT_NEXT_PUNT;
+ }
+ else
+ nexts[i] = last_unknown_next;
+ }
+
+ /* next */
+ n_left--;
+ si++;
+ }
+
+ eth_input_update_if_counters (vm, vnm, &dot1q_lookup);
+ eth_input_update_if_counters (vm, vnm, &dot1ad_lookup);
+ }
+
+ vlib_buffer_enqueue_to_next (vm, node, buffer_indices, nexts, n_packets);
+}
+
+static_always_inline void
+eth_input_single_int (vlib_main_t * vm, vlib_node_runtime_t * node,
+ vnet_hw_interface_t * hi, u32 * from, u32 n_pkts,
+ int ip4_cksum_ok)
+{
+ ethernet_main_t *em = ðernet_main;
+ ethernet_interface_t *ei;
+ ei = pool_elt_at_index (em->interfaces, hi->hw_instance);
+ main_intf_t *intf0 = vec_elt_at_index (em->main_intfs, hi->hw_if_index);
+ subint_config_t *subint0 = &intf0->untagged_subint;
+
+ int main_is_l3 = (subint0->flags & SUBINT_CONFIG_L2) == 0;
+ int promisc = (ei->flags & ETHERNET_INTERFACE_FLAG_ACCEPT_ALL) != 0;
+
+ if (main_is_l3)
+ {
+ /* main interface is L3, we dont expect tagged packets and interface
+ is not in promisc node, so we dont't need to check DMAC */
+ int is_l3 = 1;
+
+ if (promisc == 0)
+ eth_input_process_frame (vm, node, hi, from, n_pkts, is_l3,
+ ip4_cksum_ok, 0);
+ else
+ /* subinterfaces and promisc mode so DMAC check is needed */
+ eth_input_process_frame (vm, node, hi, from, n_pkts, is_l3,
+ ip4_cksum_ok, 1);
+ return;
+ }
+ else
+ {
+ /* untagged packets are treated as L2 */
+ int is_l3 = 0;
+ eth_input_process_frame (vm, node, hi, from, n_pkts, is_l3,
+ ip4_cksum_ok, 1);
+ return;
+ }
+}
+
+static_always_inline void
+ethernet_input_trace (vlib_main_t * vm, vlib_node_runtime_t * node,
+ vlib_frame_t * from_frame)
+{
+ u32 *from, n_left;
+ if ((node->flags & VLIB_NODE_FLAG_TRACE) == 0)
+ return;
+
+ from = vlib_frame_vector_args (from_frame);
+ n_left = from_frame->n_vectors;
+
+ while (n_left)
+ {
+ ethernet_input_trace_t *t0;
+ vlib_buffer_t *b0 = vlib_get_buffer (vm, from[0]);
+
+ if (b0->flags & VLIB_BUFFER_IS_TRACED)
+ {
+ t0 = vlib_add_trace (vm, node, b0, sizeof (ethernet_input_trace_t));
+ clib_memcpy_fast (t0->packet_data, b0->data + b0->current_data,
+ sizeof (t0->packet_data));
+ t0->frame_flags = from_frame->flags;
+ clib_memcpy_fast (&t0->frame_data,
+ vlib_frame_scalar_args (from_frame),
+ sizeof (ethernet_input_frame_t));
+ }
+ from += 1;
+ n_left -= 1;
+ }
+}
+
+static_always_inline void
ethernet_input_inline (vlib_main_t * vm,
vlib_node_runtime_t * node,
- vlib_frame_t * from_frame,
+ u32 * from, u32 n_packets,
ethernet_input_variant_t variant)
{
vnet_main_t *vnm = vnet_get_main ();
ethernet_main_t *em = ðernet_main;
vlib_node_runtime_t *error_node;
- u32 n_left_from, next_index, *from, *to_next;
+ u32 n_left_from, next_index, *to_next;
u32 stats_sw_if_index, stats_n_packets, stats_n_bytes;
- u32 thread_index = vlib_get_thread_index ();
+ u32 thread_index = vm->thread_index;
u32 cached_sw_if_index = ~0;
u32 cached_is_l2 = 0; /* shut up gcc */
vnet_hw_interface_t *hi = NULL; /* used for main interface only */
else
error_node = node;
- from = vlib_frame_vector_args (from_frame);
- n_left_from = from_frame->n_vectors;
-
- if (node->flags & VLIB_NODE_FLAG_TRACE)
- vlib_trace_frame_buffers_only (vm, node,
- from,
- n_left_from,
- sizeof (from[0]),
- sizeof (ethernet_input_trace_t));
+ n_left_from = n_packets;
next_index = node->cached_next_index;
stats_sw_if_index = node->runtime_data[0];
e1 = vlib_buffer_get_current (b1);
type1 = clib_net_to_host_u16 (e1->type);
+ /* Set the L2 header offset for all packets */
+ vnet_buffer (b0)->l2_hdr_offset = b0->current_data;
+ vnet_buffer (b1)->l2_hdr_offset = b1->current_data;
+ b0->flags |= VNET_BUFFER_F_L2_HDR_OFFSET_VALID;
+ b1->flags |= VNET_BUFFER_F_L2_HDR_OFFSET_VALID;
+
/* Speed-path for the untagged case */
if (PREDICT_TRUE (variant == ETHERNET_INPUT_VARIANT_ETHERNET
- && !ethernet_frame_is_any_tagged (type0, type1)))
+ && !ethernet_frame_is_any_tagged_x2 (type0,
+ type1)))
{
main_intf_t *intf0;
subint_config_t *subint0;
cached_is_l2 = is_l20 = subint0->flags & SUBINT_CONFIG_L2;
}
- vnet_buffer (b0)->l2_hdr_offset = b0->current_data;
- vnet_buffer (b1)->l2_hdr_offset = b1->current_data;
- vnet_buffer (b0)->l3_hdr_offset =
- vnet_buffer (b0)->l2_hdr_offset + sizeof (ethernet_header_t);
- vnet_buffer (b1)->l3_hdr_offset =
- vnet_buffer (b1)->l2_hdr_offset + sizeof (ethernet_header_t);
- b0->flags |= VNET_BUFFER_F_L2_HDR_OFFSET_VALID |
- VNET_BUFFER_F_L3_HDR_OFFSET_VALID;
- b1->flags |= VNET_BUFFER_F_L2_HDR_OFFSET_VALID |
- VNET_BUFFER_F_L3_HDR_OFFSET_VALID;
-
if (PREDICT_TRUE (is_l20 != 0))
{
+ vnet_buffer (b0)->l3_hdr_offset =
+ vnet_buffer (b0)->l2_hdr_offset +
+ sizeof (ethernet_header_t);
+ vnet_buffer (b1)->l3_hdr_offset =
+ vnet_buffer (b1)->l2_hdr_offset +
+ sizeof (ethernet_header_t);
+ b0->flags |= VNET_BUFFER_F_L3_HDR_OFFSET_VALID;
+ b1->flags |= VNET_BUFFER_F_L3_HDR_OFFSET_VALID;
next0 = em->l2_next;
vnet_buffer (b0)->l2.l2_len = sizeof (ethernet_header_t);
next1 = em->l2_next;
(hi->hw_address != 0) &&
!eth_mac_equal ((u8 *) e1, hi->hw_address))
error1 = ETHERNET_ERROR_L3_MAC_MISMATCH;
+ vlib_buffer_advance (b0, sizeof (ethernet_header_t));
determine_next_node (em, variant, 0, type0, b0,
&error0, &next0);
- vlib_buffer_advance (b0, sizeof (ethernet_header_t));
+ vlib_buffer_advance (b1, sizeof (ethernet_header_t));
determine_next_node (em, variant, 0, type1, b1,
&error1, &next1);
- vlib_buffer_advance (b1, sizeof (ethernet_header_t));
}
goto ship_it01;
}
&next0);
determine_next_node (em, variant, is_l21, type1, b1, &error1,
&next1);
- vnet_buffer (b0)->l3_hdr_offset = vnet_buffer (b0)->l2_hdr_offset +
- vnet_buffer (b0)->l2.l2_len;
- vnet_buffer (b1)->l3_hdr_offset = vnet_buffer (b1)->l2_hdr_offset +
- vnet_buffer (b1)->l2.l2_len;
- b0->flags |= VNET_BUFFER_F_L3_HDR_OFFSET_VALID;
- b1->flags |= VNET_BUFFER_F_L3_HDR_OFFSET_VALID;
ship_it01:
b0->error = error_node->errors[error0];
e0 = vlib_buffer_get_current (b0);
type0 = clib_net_to_host_u16 (e0->type);
+ /* Set the L2 header offset for all packets */
+ vnet_buffer (b0)->l2_hdr_offset = b0->current_data;
+ b0->flags |= VNET_BUFFER_F_L2_HDR_OFFSET_VALID;
+
/* Speed-path for the untagged case */
if (PREDICT_TRUE (variant == ETHERNET_INPUT_VARIANT_ETHERNET
&& !ethernet_frame_is_tagged (type0)))
cached_is_l2 = is_l20 = subint0->flags & SUBINT_CONFIG_L2;
}
- vnet_buffer (b0)->l2_hdr_offset = b0->current_data;
- vnet_buffer (b0)->l3_hdr_offset =
- vnet_buffer (b0)->l2_hdr_offset + sizeof (ethernet_header_t);
- b0->flags |= VNET_BUFFER_F_L2_HDR_OFFSET_VALID |
- VNET_BUFFER_F_L3_HDR_OFFSET_VALID;
if (PREDICT_TRUE (is_l20 != 0))
{
+ vnet_buffer (b0)->l3_hdr_offset =
+ vnet_buffer (b0)->l2_hdr_offset +
+ sizeof (ethernet_header_t);
+ b0->flags |= VNET_BUFFER_F_L3_HDR_OFFSET_VALID;
next0 = em->l2_next;
vnet_buffer (b0)->l2.l2_len = sizeof (ethernet_header_t);
}
(hi->hw_address != 0) &&
!eth_mac_equal ((u8 *) e0, hi->hw_address))
error0 = ETHERNET_ERROR_L3_MAC_MISMATCH;
+ vlib_buffer_advance (b0, sizeof (ethernet_header_t));
determine_next_node (em, variant, 0, type0, b0,
&error0, &next0);
- vlib_buffer_advance (b0, sizeof (ethernet_header_t));
}
goto ship_it0;
}
determine_next_node (em, variant, is_l20, type0, b0, &error0,
&next0);
- vnet_buffer (b0)->l3_hdr_offset = vnet_buffer (b0)->l2_hdr_offset +
- vnet_buffer (b0)->l2.l2_len;
- b0->flags |= VNET_BUFFER_F_L3_HDR_OFFSET_VALID;
ship_it0:
b0->error = error_node->errors[error0];
thread_index, stats_sw_if_index, stats_n_packets, stats_n_bytes);
node->runtime_data[0] = stats_sw_if_index;
}
-
- return from_frame->n_vectors;
}
-static uword
-ethernet_input (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * from_frame)
+VLIB_NODE_FN (ethernet_input_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
{
- return ethernet_input_inline (vm, node, from_frame,
- ETHERNET_INPUT_VARIANT_ETHERNET);
+ vnet_main_t *vnm = vnet_get_main ();
+ u32 *from = vlib_frame_vector_args (frame);
+ u32 n_packets = frame->n_vectors;
+
+ ethernet_input_trace (vm, node, frame);
+
+ if (frame->flags & ETH_INPUT_FRAME_F_SINGLE_SW_IF_IDX)
+ {
+ ethernet_input_frame_t *ef = vlib_frame_scalar_args (frame);
+ int ip4_cksum_ok = (frame->flags & ETH_INPUT_FRAME_F_IP4_CKSUM_OK) != 0;
+ vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, ef->hw_if_index);
+ eth_input_single_int (vm, node, hi, from, n_packets, ip4_cksum_ok);
+ }
+ else
+ ethernet_input_inline (vm, node, from, n_packets,
+ ETHERNET_INPUT_VARIANT_ETHERNET);
+ return n_packets;
}
-static uword
-ethernet_input_type (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * from_frame)
+VLIB_NODE_FN (ethernet_input_type_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * from_frame)
{
- return ethernet_input_inline (vm, node, from_frame,
- ETHERNET_INPUT_VARIANT_ETHERNET_TYPE);
+ u32 *from = vlib_frame_vector_args (from_frame);
+ u32 n_packets = from_frame->n_vectors;
+ ethernet_input_trace (vm, node, from_frame);
+ ethernet_input_inline (vm, node, from, n_packets,
+ ETHERNET_INPUT_VARIANT_ETHERNET_TYPE);
+ return n_packets;
}
-static uword
-ethernet_input_not_l2 (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * from_frame)
+VLIB_NODE_FN (ethernet_input_not_l2_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * from_frame)
{
- return ethernet_input_inline (vm, node, from_frame,
- ETHERNET_INPUT_VARIANT_NOT_L2);
+ u32 *from = vlib_frame_vector_args (from_frame);
+ u32 n_packets = from_frame->n_vectors;
+ ethernet_input_trace (vm, node, from_frame);
+ ethernet_input_inline (vm, node, from, n_packets,
+ ETHERNET_INPUT_VARIANT_NOT_L2);
+ return n_packets;
}
subint = vec_elt_at_index (p2pm->p2p_subif_pool, si->p2p.pool_index);
*flags = SUBINT_CONFIG_P2P;
}
+ else if (si->type == VNET_SW_INTERFACE_TYPE_PIPE)
+ {
+ pipe_t *pipe;
+
+ pipe = pipe_get (sw_if_index);
+ subint = &pipe->subint;
+ *flags = SUBINT_CONFIG_P2P;
+ }
else if (si->sub.eth.flags.default_sub)
{
subint = &main_intf->default_subint;
- *flags = SUBINT_CONFIG_MATCH_0_TAG |
- SUBINT_CONFIG_MATCH_1_TAG |
+ *flags = SUBINT_CONFIG_MATCH_1_TAG |
SUBINT_CONFIG_MATCH_2_TAG | SUBINT_CONFIG_MATCH_3_TAG;
}
else if ((si->sub.eth.flags.no_tags) || (si->sub.eth.raw_flags == 0))
return subint;
}
-clib_error_t *
+static clib_error_t *
ethernet_sw_interface_up_down (vnet_main_t * vnm, u32 sw_if_index, u32 flags)
{
subint_config_t *subint;
VNET_SW_INTERFACE_ADMIN_UP_DOWN_FUNCTION (ethernet_sw_interface_up_down);
+#ifndef CLIB_MARCH_VARIANT
// Set the L2/L3 mode for the subinterface
void
ethernet_sw_interface_set_l2_mode (vnet_main_t * vnm, u32 sw_if_index, u32 l2)
done:
return;
}
+#endif
static clib_error_t *
ethernet_sw_interface_add_del (vnet_main_t * vnm,
}
else
{
- // Note that config is L3 by defaulty
+ // Note that config is L3 by default
subint->flags = SUBINT_CONFIG_VALID | match_flags;
subint->sw_if_index = ~0; // because interfaces are initially down
}
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (ethernet_input_node) = {
- .function = ethernet_input,
.name = "ethernet-input",
/* Takes a vector of packets. */
.vector_size = sizeof (u32),
+ .scalar_size = sizeof (ethernet_input_frame_t),
.n_errors = ETHERNET_N_ERROR,
.error_strings = ethernet_error_strings,
.n_next_nodes = ETHERNET_INPUT_N_NEXT,
.format_trace = format_ethernet_input_trace,
.unformat_buffer = unformat_ethernet_header,
};
-/* *INDENT-ON* */
-/* *INDENT-OFF* */
-VLIB_NODE_FUNCTION_MULTIARCH (ethernet_input_node, ethernet_input)
-/* *INDENT-ON* */
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (ethernet_input_type_node, static) = {
- .function = ethernet_input_type,
+VLIB_REGISTER_NODE (ethernet_input_type_node) = {
.name = "ethernet-input-type",
/* Takes a vector of packets. */
.vector_size = sizeof (u32),
#undef _
},
};
-/* *INDENT-ON* */
-/* *INDENT-OFF* */
-VLIB_NODE_FUNCTION_MULTIARCH (ethernet_input_type_node, ethernet_input_type)
-/* *INDENT-ON* */
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (ethernet_input_not_l2_node, static) = {
- .function = ethernet_input_not_l2,
+VLIB_REGISTER_NODE (ethernet_input_not_l2_node) = {
.name = "ethernet-input-not-l2",
/* Takes a vector of packets. */
.vector_size = sizeof (u32),
};
/* *INDENT-ON* */
-
-/* *INDENT-OFF* */
-VLIB_NODE_FUNCTION_MULTIARCH (ethernet_input_not_l2_node,
- ethernet_input_not_l2)
-/* *INDENT-ON* */
-
-
+#ifndef CLIB_MARCH_VARIANT
void
ethernet_set_rx_redirect (vnet_main_t * vnm,
vnet_hw_interface_t * hi, u32 enable)
ASSERT (i == em->redirect_l3_next);
}
+#endif
/*
* fd.io coding-style-patch-verification: ON
Code Review / vpp.git / blobdiff