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-rwxr-xr-xsrc/vnet/ethernet/node.c743
1 files changed, 474 insertions, 269 deletions
diff --git a/src/vnet/ethernet/node.c b/src/vnet/ethernet/node.c
index 7cf78c65435..268b171a6af 100755
--- a/src/vnet/ethernet/node.c
+++ b/src/vnet/ethernet/node.c
@@ -45,7 +45,6 @@
#include <vppinfra/sparse_vec.h>
#include <vnet/l2/l2_bvi.h>
-
#define foreach_ethernet_input_next \
_ (PUNT, "error-punt") \
_ (DROP, "error-drop") \
@@ -301,60 +300,6 @@ determine_next_node (ethernet_main_t * em,
}
}
-typedef enum
-{
- ETYPE_ID_UNKNOWN = 0,
- ETYPE_ID_IP4,
- ETYPE_ID_IP6,
- ETYPE_ID_MPLS,
- ETYPE_N_IDS,
-} etype_id_t;
-
-static_always_inline void
-eth_input_advance_and_flags (vlib_main_t * vm, u32 * from, u32 n_left,
- i16 advance, u32 and_flags, u32 or_flags)
-{
- vlib_buffer_t *b[8];
- while (n_left >= 8)
- {
- vlib_get_buffers (vm, from, b, 8);
- vlib_buffer_advance (b[0], advance);
- vlib_buffer_advance (b[1], advance);
- vlib_buffer_advance (b[2], advance);
- vlib_buffer_advance (b[3], advance);
- vlib_buffer_advance (b[4], advance);
- vlib_buffer_advance (b[5], advance);
- vlib_buffer_advance (b[6], advance);
- vlib_buffer_advance (b[7], advance);
- b[0]->flags = (b[0]->flags & and_flags) | or_flags;
- b[1]->flags = (b[1]->flags & and_flags) | or_flags;
- b[2]->flags = (b[2]->flags & and_flags) | or_flags;
- b[3]->flags = (b[3]->flags & and_flags) | or_flags;
- b[4]->flags = (b[4]->flags & and_flags) | or_flags;
- b[5]->flags = (b[5]->flags & and_flags) | or_flags;
- b[6]->flags = (b[6]->flags & and_flags) | or_flags;
- b[7]->flags = (b[7]->flags & and_flags) | or_flags;
-
- n_left -= 8;
- from += 8;
- }
- while (n_left)
- {
- vlib_get_buffers (vm, from, b, 1);
- vlib_buffer_advance (b[0], advance);
- b[0]->flags = (b[0]->flags & and_flags) | or_flags;
-
- n_left -= 1;
- from += 1;
- }
-}
-
-typedef struct
-{
- u16 etypes[VLIB_FRAME_SIZE];
- u32 bufs_by_etype[ETYPE_N_IDS][VLIB_FRAME_SIZE];
- u16 n_bufs_by_etype[ETYPE_N_IDS];
-} eth_input_data_t;
/* following vector code relies on following assumptions */
STATIC_ASSERT_OFFSET_OF (vlib_buffer_t, current_data, 0);
@@ -365,8 +310,12 @@ STATIC_ASSERT (STRUCT_OFFSET_OF (vnet_buffer_opaque_t, l2_hdr_offset) ==
"l3_hdr_offset must follow l2_hdr_offset");
static_always_inline void
-eth_input_adv_and_flags_x4 (vlib_buffer_t ** b, i16 adv, u32 flags, int is_l3)
+eth_input_adv_and_flags_x4 (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;
+
#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
@@ -463,8 +412,12 @@ eth_input_adv_and_flags_x4 (vlib_buffer_t ** b, i16 adv, u32 flags, int is_l3)
}
static_always_inline void
-eth_input_adv_and_flags_x1 (vlib_buffer_t ** b, i16 adv, u32 flags, int is_l3)
+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;
@@ -475,198 +428,533 @@ eth_input_adv_and_flags_x1 (vlib_buffer_t ** b, i16 adv, u32 flags, int is_l3)
vnet_buffer (b[0])->l2.l2_len = adv;
}
+
static_always_inline void
-eth_input_process_frame (vlib_main_t * vm, u32 * from, u16 * etype,
- u32 n_left, int is_l3)
+eth_input_get_etype_and_tags (vlib_buffer_t ** b, u16 * etype, u64 * tags,
+ u64 * dmacs, int offset, int dmac_check)
{
- vlib_buffer_t *b[16];
ethernet_header_t *e;
- int adv = sizeof (ethernet_header_t);
+ 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
- u32 flags = VNET_BUFFER_F_L2_HDR_OFFSET_VALID |
- VNET_BUFFER_F_L3_HDR_OFFSET_VALID;
+ if (dmac_check)
+ dmacs[offset] = *(u64 *) e;
+}
+
+static_always_inline u16
+eth_input_next_by_type (u16 etype)
+{
+ ethernet_main_t *em = &ethernet_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 = &ethernet_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);
+}
+
+/* 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 = &ethernet_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;
- while (n_left >= 16)
+ from = buffer_indices;
+
+ while (n_left >= 20)
{
- vlib_buffer_t **ph = b + 12, **pd = b + 8;
+ vlib_buffer_t **ph = b + 16, **pd = b + 8;
vlib_get_buffers (vm, from, b, 4);
- vlib_get_buffers (vm, from + 8, b + 8, 8);
+ 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);
- e = vlib_buffer_get_current (b[0]);
- etype[0] = e->type;
+ 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);
- e = vlib_buffer_get_current (b[1]);
- etype[1] = e->type;
+ 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);
- e = vlib_buffer_get_current (b[2]);
- etype[2] = e->type;
+ 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);
- e = vlib_buffer_get_current (b[3]);
- etype[3] = e->type;
+ eth_input_get_etype_and_tags (b, etype, tag, dmac, 3, dmac_check);
- eth_input_adv_and_flags_x4 (b, adv, flags, is_l3);
+ 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);
-
- e = vlib_buffer_get_current (b[0]);
- etype[0] = e->type;
-
- e = vlib_buffer_get_current (b[1]);
- etype[1] = e->type;
-
- e = vlib_buffer_get_current (b[2]);
- etype[2] = e->type;
-
- e = vlib_buffer_get_current (b[3]);
- etype[3] = e->type;
-
- eth_input_adv_and_flags_x4 (b, adv, flags, is_l3);
+ 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);
-
- e = vlib_buffer_get_current (b[0]);
- etype[0] = e->type;
-
- eth_input_adv_and_flags_x1 (b, adv, flags, is_l3);
+ 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;
}
-}
-static_always_inline void
-eth_input_sort (vlib_main_t * vm, u32 * from, u32 n_packets,
- eth_input_data_t * d)
-{
- u16 *etype = d->etypes;
- i32 n_left = n_packets;
+ 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;
-#if defined (CLIB_HAVE_VEC256)
- u16x16 e16;
- u16x16 et16_ip4 = u16x16_splat (clib_host_to_net_u16 (ETHERNET_TYPE_IP4));
- u16x16 et16_ip6 = u16x16_splat (clib_host_to_net_u16 (ETHERNET_TYPE_IP6));
- u16x16 et16_mpls = u16x16_splat (clib_host_to_net_u16 (ETHERNET_TYPE_MPLS));
- u16x16 id16_ip4 = u16x16_splat (ETYPE_ID_IP4);
- u16x16 id16_ip6 = u16x16_splat (ETYPE_ID_IP6);
- u16x16 id16_mpls = u16x16_splat (ETYPE_ID_MPLS);
+ n_left = n_packets;
- while (n_left > 0)
- {
- u16x16 r = { 0 };
- e16 = u16x16_load_unaligned (etype);
- r += (e16 == et16_ip4) & id16_ip4;
- r += (e16 == et16_ip6) & id16_ip6;
- r += (e16 == et16_mpls) & id16_mpls;
- u16x16_store_unaligned (r, etype);
- etype += 16;
- n_left -= 16;
- }
-#elif defined (CLIB_HAVE_VEC128)
- u16x8 e8;
- u16x8 et8_ip4 = u16x8_splat (clib_host_to_net_u16 (ETHERNET_TYPE_IP4));
- u16x8 et8_ip6 = u16x8_splat (clib_host_to_net_u16 (ETHERNET_TYPE_IP6));
- u16x8 et8_mpls = u16x8_splat (clib_host_to_net_u16 (ETHERNET_TYPE_MPLS));
- u16x8 id8_ip4 = u16x8_splat (ETYPE_ID_IP4);
- u16x8 id8_ip6 = u16x8_splat (ETYPE_ID_IP6);
- u16x8 id8_mpls = u16x8_splat (ETYPE_ID_MPLS);
+#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;
- while (n_left > 0)
- {
- u16x8 r = { 0 };
- e8 = u16x8_load_unaligned (etype);
- r += (e8 == et8_ip4) & id8_ip4;
- r += (e8 == et8_ip6) & id8_ip6;
- r += (e8 == et8_mpls) & id8_mpls;
- u16x8_store_unaligned (r, etype);
- etype += 8;
- n_left -= 8;
- }
+ 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)
- {
- if (etype[0] == ETHERNET_TYPE_IP4)
- etype[0] = ETYPE_ID_IP4;
- else if (etype[0] == ETHERNET_TYPE_IP6)
- etype[0] = ETYPE_ID_IP6;
- else if (etype[0] == ETHERNET_TYPE_MPLS)
- etype[0] = ETYPE_ID_MPLS;
- else
- etype[0] = ETYPE_ID_UNKNOWN;
+ 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;
- etype += 1;
- n_left -= 1;
+ /* 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 = d->etypes;
+ etype = etypes;
n_left = n_packets;
+ next = nexts;
+ n_slowpath = 0;
+ i = 0;
- clib_memset_u16 (d->n_bufs_by_etype, 0, ETYPE_N_IDS);
- while (n_left)
+ /* 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)
{
- u16 x, y;
- x = etype[0];
- y = d->n_bufs_by_etype[x];
-
#ifdef CLIB_HAVE_VEC256
- if (n_left >= 16 && u16x16_is_all_equal (u16x16_load_unaligned (etype),
- etype[0]))
+ if (n_left >= 16)
{
- clib_memcpy_fast (&d->bufs_by_etype[x][y], from, 16 * sizeof (u32));
- d->n_bufs_by_etype[x] += 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;
+ }
+ }
- /* next */
- n_left -= 16;
etype += 16;
- from += 16;
+ next += 16;
+ n_left -= 16;
+ i += 16;
continue;
}
#endif
-#ifdef CLIB_HAVE_VEC128
- if (n_left >= 8 && u16x8_is_all_equal (u16x8_load_unaligned (etype),
- etype[0]))
+ 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)
{
- clib_memcpy_fast (&d->bufs_by_etype[x][y], from, 8 * sizeof (u32));
- d->n_bufs_by_etype[x] += 8;
+ 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 -= 8;
- etype += 8;
- from += 8;
- continue;
+ n_left--;
+ si++;
}
-#endif
- d->bufs_by_etype[x][y] = from[0];
- d->n_bufs_by_etype[x]++;
- /* next */
- n_left -= 1;
- etype += 1;
- from += 1;
+ 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 = &ethernet_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;
}
}
@@ -1170,68 +1458,11 @@ ethernet_input_inline (vlib_main_t * vm,
}
}
-static_always_inline void
-eth_input_enqueue_untagged (vlib_main_t * vm, vlib_node_runtime_t * node,
- eth_input_data_t * d, int ip4_cksum_ok, int is_l3)
-{
- ethernet_main_t *em = &ethernet_main;
- etype_id_t id;
- u32 next_index;
-
- id = ETYPE_ID_IP4;
- if (d->n_bufs_by_etype[id])
- {
- if (is_l3)
- {
- next_index = em->l3_next.input_next_ip4;
- if (next_index == ETHERNET_INPUT_NEXT_IP4_INPUT && ip4_cksum_ok)
- next_index = ETHERNET_INPUT_NEXT_IP4_INPUT_NCS;
- }
- else
- next_index = em->l2_next;
-
- vlib_buffer_enqueue_to_single_next (vm, node, d->bufs_by_etype[id],
- next_index, d->n_bufs_by_etype[id]);
- }
-
- id = ETYPE_ID_IP6;
- if (d->n_bufs_by_etype[id])
- {
- next_index = is_l3 ? em->l3_next.input_next_ip6 : em->l2_next;
- vlib_buffer_enqueue_to_single_next (vm, node, d->bufs_by_etype[id],
- next_index, d->n_bufs_by_etype[id]);
- }
-
- id = ETYPE_ID_MPLS;
- if (d->n_bufs_by_etype[id])
- {
- next_index = is_l3 ? em->l3_next.input_next_mpls : em->l2_next;
- vlib_buffer_enqueue_to_single_next (vm, node, d->bufs_by_etype[id],
- next_index, d->n_bufs_by_etype[id]);
- }
-
- id = ETYPE_ID_UNKNOWN;
- if (d->n_bufs_by_etype[id])
- {
- /* in case of l3 interfaces, we already advanced buffer so we need to
- roll back */
- if (is_l3)
- eth_input_advance_and_flags (vm, d->bufs_by_etype[id],
- d->n_bufs_by_etype[id],
- -(i16) sizeof (ethernet_header_t),
- ~VNET_BUFFER_F_L3_HDR_OFFSET_VALID, 0);
- ethernet_input_inline (vm, node, d->bufs_by_etype[id],
- d->n_bufs_by_etype[id],
- ETHERNET_INPUT_VARIANT_ETHERNET);
- }
-}
-
VLIB_NODE_FN (ethernet_input_node) (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
vnet_main_t *vnm = vnet_get_main ();
- ethernet_main_t *em = &ethernet_main;
u32 *from = vlib_frame_vector_args (frame);
u32 n_packets = frame->n_vectors;
@@ -1239,40 +1470,14 @@ VLIB_NODE_FN (ethernet_input_node) (vlib_main_t * vm,
if (frame->flags & ETH_INPUT_FRAME_F_SINGLE_SW_IF_IDX)
{
- eth_input_data_t data, *d = &data;
ethernet_input_frame_t *ef = vlib_frame_scalar_args (frame);
- vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, ef->hw_if_index);
- main_intf_t *intf0 = vec_elt_at_index (em->main_intfs, hi->hw_if_index);
- subint_config_t *subint0 = &intf0->untagged_subint;
int ip4_cksum_ok = (frame->flags & ETH_INPUT_FRAME_F_IP4_CKSUM_OK) != 0;
-
- if (subint0->flags & SUBINT_CONFIG_L2)
- {
- /* untagged packets are treated as L2 */
- eth_input_process_frame (vm, from, d->etypes, n_packets, 0);
- eth_input_sort (vm, from, n_packets, d);
- eth_input_enqueue_untagged (vm, node, d, ip4_cksum_ok, 0);
- }
- else
- {
- ethernet_interface_t *ei;
- ei = pool_elt_at_index (em->interfaces, hi->hw_instance);
-
- /* currently only slowpath deals with dmac check */
- if (ei->flags & ETHERNET_INTERFACE_FLAG_ACCEPT_ALL)
- goto slowpath;
-
- /* untagged packets are treated as L3 */
- eth_input_process_frame (vm, from, d->etypes, n_packets, 1);
- eth_input_sort (vm, from, n_packets, d);
- eth_input_enqueue_untagged (vm, node, d, ip4_cksum_ok, 1);
- }
- return n_packets;
+ 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);
}
-
-slowpath:
- ethernet_input_inline (vm, node, from, n_packets,
- ETHERNET_INPUT_VARIANT_ETHERNET);
+ else
+ ethernet_input_inline (vm, node, from, n_packets,
+ ETHERNET_INPUT_VARIANT_ETHERNET);
return n_packets;
}