1 files changed, 0 insertions, 410 deletions

diff --git a/src/vnet/devices/af_packet/node.c b/src/vnet/devices/af_packet/node.c
deleted file mode 100644
index 9fd115f9509..00000000000
--- a/src/vnet/devices/af_packet/node.c
+++ /dev/null
@@ -1,410 +0,0 @@
-/*
- *------------------------------------------------------------------
- * af_packet.c - linux kernel packet interface
- *
- * Copyright (c) 2016 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:
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *------------------------------------------------------------------
- */
-
-#include <linux/if_packet.h>
-
-#include <vlib/vlib.h>
-#include <vlib/unix/unix.h>
-#include <vnet/ip/ip.h>
-#include <vnet/ethernet/ethernet.h>
-#include <vnet/interface/rx_queue_funcs.h>
-#include <vnet/feature/feature.h>
-#include <vnet/ethernet/packet.h>
-
-#include <vnet/devices/af_packet/af_packet.h>
-
-#define foreach_af_packet_input_error \
-  _(PARTIAL_PKT, "partial packet")
-
-typedef enum
-{
-#define _(f,s) AF_PACKET_INPUT_ERROR_##f,
-  foreach_af_packet_input_error
-#undef _
-    AF_PACKET_INPUT_N_ERROR,
-} af_packet_input_error_t;
-
-static char *af_packet_input_error_strings[] = {
-#define _(n,s) s,
-  foreach_af_packet_input_error
-#undef _
-};
-
-typedef struct
-{
-  u32 next_index;
-  u32 hw_if_index;
-  int block;
-  struct tpacket2_hdr tph;
-} af_packet_input_trace_t;
-
-static u8 *
-format_af_packet_input_trace (u8 * s, va_list * args)
-{
-  CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
-  CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
-  af_packet_input_trace_t *t = va_arg (*args, af_packet_input_trace_t *);
-  u32 indent = format_get_indent (s);
-
-  s = format (s, "af_packet: hw_if_index %d next-index %d",
-	      t->hw_if_index, t->next_index);
-
-  s =
-    format (s,
-	    "\n%Utpacket2_hdr:\n%Ustatus 0x%x len %u snaplen %u mac %u net %u"
-	    "\n%Usec 0x%x nsec 0x%x vlan %U"
-#ifdef TP_STATUS_VLAN_TPID_VALID
-	    " vlan_tpid %u"
-#endif
-	    ,
-	    format_white_space, indent + 2,
-	    format_white_space, indent + 4,
-	    t->tph.tp_status,
-	    t->tph.tp_len,
-	    t->tph.tp_snaplen,
-	    t->tph.tp_mac,
-	    t->tph.tp_net,
-	    format_white_space, indent + 4,
-	    t->tph.tp_sec,
-	    t->tph.tp_nsec, format_ethernet_vlan_tci, t->tph.tp_vlan_tci
-#ifdef TP_STATUS_VLAN_TPID_VALID
-	    , t->tph.tp_vlan_tpid
-#endif
-    );
-  return s;
-}
-
-always_inline void
-buffer_add_to_chain (vlib_main_t * vm, u32 bi, u32 first_bi, u32 prev_bi)
-{
-  vlib_buffer_t *b = vlib_get_buffer (vm, bi);
-  vlib_buffer_t *first_b = vlib_get_buffer (vm, first_bi);
-  vlib_buffer_t *prev_b = vlib_get_buffer (vm, prev_bi);
-
-  /* update first buffer */
-  first_b->total_length_not_including_first_buffer += b->current_length;
-
-  /* update previous buffer */
-  prev_b->next_buffer = bi;
-  prev_b->flags |= VLIB_BUFFER_NEXT_PRESENT;
-
-  /* update current buffer */
-  b->next_buffer = 0;
-}
-
-static_always_inline void
-fill_gso_buffer_flags (vlib_buffer_t *b, u32 gso_size, u8 l4_hdr_sz)
-{
-  b->flags |= VNET_BUFFER_F_GSO;
-  vnet_buffer2 (b)->gso_size = gso_size;
-  vnet_buffer2 (b)->gso_l4_hdr_sz = l4_hdr_sz;
-}
-
-static_always_inline void
-mark_tcp_udp_cksum_calc (vlib_buffer_t *b, u8 *l4_hdr_sz)
-{
-  ethernet_header_t *eth = vlib_buffer_get_current (b);
-  vnet_buffer_oflags_t oflags = 0;
-  if (clib_net_to_host_u16 (eth->type) == ETHERNET_TYPE_IP4)
-    {
-      ip4_header_t *ip4 =
-	(vlib_buffer_get_current (b) + sizeof (ethernet_header_t));
-      b->flags |= VNET_BUFFER_F_IS_IP4;
-      if (ip4->protocol == IP_PROTOCOL_TCP)
-	{
-	  oflags |= VNET_BUFFER_OFFLOAD_F_TCP_CKSUM;
-	  tcp_header_t *tcp = (tcp_header_t *) (vlib_buffer_get_current (b) +
-						sizeof (ethernet_header_t) +
-						ip4_header_bytes (ip4));
-	  tcp->checksum = 0;
-	  *l4_hdr_sz = tcp_header_bytes (tcp);
-	}
-      else if (ip4->protocol == IP_PROTOCOL_UDP)
-	{
-	  oflags |= VNET_BUFFER_OFFLOAD_F_UDP_CKSUM;
-	  udp_header_t *udp = (udp_header_t *) (vlib_buffer_get_current (b) +
-						sizeof (ethernet_header_t) +
-						ip4_header_bytes (ip4));
-	  udp->checksum = 0;
-	  *l4_hdr_sz = sizeof (*udp);
-	}
-      vnet_buffer (b)->l3_hdr_offset = sizeof (ethernet_header_t);
-      vnet_buffer (b)->l4_hdr_offset =
-	sizeof (ethernet_header_t) + ip4_header_bytes (ip4);
-      if (oflags)
-	vnet_buffer_offload_flags_set (b, oflags);
-    }
-  else if (clib_net_to_host_u16 (eth->type) == ETHERNET_TYPE_IP6)
-    {
-      ip6_header_t *ip6 =
-	(vlib_buffer_get_current (b) + sizeof (ethernet_header_t));
-      b->flags |= VNET_BUFFER_F_IS_IP6;
-      u16 ip6_hdr_len = sizeof (ip6_header_t);
-      if (ip6_ext_hdr (ip6->protocol))
-	{
-	  ip6_ext_header_t *p = (void *) (ip6 + 1);
-	  ip6_hdr_len += ip6_ext_header_len (p);
-	  while (ip6_ext_hdr (p->next_hdr))
-	    {
-	      ip6_hdr_len += ip6_ext_header_len (p);
-	      p = ip6_ext_next_header (p);
-	    }
-	}
-      if (ip6->protocol == IP_PROTOCOL_TCP)
-	{
-	  oflags |= VNET_BUFFER_OFFLOAD_F_TCP_CKSUM;
-	  tcp_header_t *tcp =
-	    (tcp_header_t *) (vlib_buffer_get_current (b) +
-			      sizeof (ethernet_header_t) + ip6_hdr_len);
-	  tcp->checksum = 0;
-	  *l4_hdr_sz = tcp_header_bytes (tcp);
-	}
-      else if (ip6->protocol == IP_PROTOCOL_UDP)
-	{
-	  oflags |= VNET_BUFFER_OFFLOAD_F_UDP_CKSUM;
-	  udp_header_t *udp =
-	    (udp_header_t *) (vlib_buffer_get_current (b) +
-			      sizeof (ethernet_header_t) + ip6_hdr_len);
-	  udp->checksum = 0;
-	  *l4_hdr_sz = sizeof (*udp);
-	}
-      vnet_buffer (b)->l3_hdr_offset = sizeof (ethernet_header_t);
-      vnet_buffer (b)->l4_hdr_offset =
-	sizeof (ethernet_header_t) + ip6_hdr_len;
-      if (oflags)
-	vnet_buffer_offload_flags_set (b, oflags);
-    }
-}
-
-always_inline uword
-af_packet_device_input_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
-			   vlib_frame_t * frame, af_packet_if_t * apif)
-{
-  af_packet_main_t *apm = &af_packet_main;
-  struct tpacket2_hdr *tph;
-  u32 next_index = VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT;
-  u32 block = 0;
-  u32 rx_frame;
-  u32 n_free_bufs;
-  u32 n_rx_packets = 0;
-  u32 n_rx_bytes = 0;
-  u32 *to_next = 0;
-  u32 block_size = apif->rx_req->tp_block_size;
-  u32 frame_size = apif->rx_req->tp_frame_size;
-  u32 frame_num = apif->rx_req->tp_frame_nr;
-  u8 *block_start = apif->rx_ring + block * block_size;
-  uword n_trace = vlib_get_trace_count (vm, node);
-  u32 thread_index = vm->thread_index;
-  u32 n_buffer_bytes = vlib_buffer_get_default_data_size (vm);
-  u32 min_bufs = apif->rx_req->tp_frame_size / n_buffer_bytes;
-
-  n_free_bufs = vec_len (apm->rx_buffers[thread_index]);
-  if (PREDICT_FALSE (n_free_bufs < VLIB_FRAME_SIZE))
-    {
-      vec_validate (apm->rx_buffers[thread_index],
-		    VLIB_FRAME_SIZE + n_free_bufs - 1);
-      n_free_bufs +=
-	vlib_buffer_alloc (vm, &apm->rx_buffers[thread_index][n_free_bufs],
-			   VLIB_FRAME_SIZE);
-      _vec_len (apm->rx_buffers[thread_index]) = n_free_bufs;
-    }
-
-  rx_frame = apif->next_rx_frame;
-  tph = (struct tpacket2_hdr *) (block_start + rx_frame * frame_size);
-  while ((tph->tp_status & TP_STATUS_USER) && (n_free_bufs > min_bufs))
-    {
-      vlib_buffer_t *b0 = 0, *first_b0 = 0;
-      u32 next0 = next_index;
-
-      u32 n_left_to_next;
-      vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
-      while ((tph->tp_status & TP_STATUS_USER) && (n_free_bufs > min_bufs) &&
-	     n_left_to_next)
-	{
-	  u32 data_len = tph->tp_snaplen;
-	  u32 offset = 0;
-	  u32 bi0 = 0, first_bi0 = 0, prev_bi0;
-	  u8 l4_hdr_sz = 0;
-
-	  while (data_len)
-	    {
-	      /* grab free buffer */
-	      u32 last_empty_buffer =
-		vec_len (apm->rx_buffers[thread_index]) - 1;
-	      prev_bi0 = bi0;
-	      bi0 = apm->rx_buffers[thread_index][last_empty_buffer];
-	      b0 = vlib_get_buffer (vm, bi0);
-	      _vec_len (apm->rx_buffers[thread_index]) = last_empty_buffer;
-	      n_free_bufs--;
-
-	      /* copy data */
-	      u32 bytes_to_copy =
-		data_len > n_buffer_bytes ? n_buffer_bytes : data_len;
-	      u32 vlan_len = 0;
-	      u32 bytes_copied = 0;
-	      b0->current_data = 0;
-	      /* Kernel removes VLAN headers, so reconstruct VLAN */
-	      if (PREDICT_FALSE (tph->tp_status & TP_STATUS_VLAN_VALID))
-		{
-		  if (PREDICT_TRUE (offset == 0))
-		    {
-		      clib_memcpy_fast (vlib_buffer_get_current (b0),
-					(u8 *) tph + tph->tp_mac,
-					sizeof (ethernet_header_t));
-		      ethernet_header_t *eth = vlib_buffer_get_current (b0);
-		      ethernet_vlan_header_t *vlan =
-			(ethernet_vlan_header_t *) (eth + 1);
-		      vlan->priority_cfi_and_id =
-			clib_host_to_net_u16 (tph->tp_vlan_tci);
-		      vlan->type = eth->type;
-		      eth->type = clib_host_to_net_u16 (ETHERNET_TYPE_VLAN);
-		      vlan_len = sizeof (ethernet_vlan_header_t);
-		      bytes_copied = sizeof (ethernet_header_t);
-		    }
-		}
-	      clib_memcpy_fast (((u8 *) vlib_buffer_get_current (b0)) +
-				bytes_copied + vlan_len,
-				(u8 *) tph + tph->tp_mac + offset +
-				bytes_copied, (bytes_to_copy - bytes_copied));
-
-	      /* fill buffer header */
-	      b0->current_length = bytes_to_copy + vlan_len;
-
-	      if (offset == 0)
-		{
-		  b0->total_length_not_including_first_buffer = 0;
-		  b0->flags = VLIB_BUFFER_TOTAL_LENGTH_VALID;
-		  vnet_buffer (b0)->sw_if_index[VLIB_RX] = apif->sw_if_index;
-		  vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0;
-		  first_bi0 = bi0;
-		  first_b0 = vlib_get_buffer (vm, first_bi0);
-		  if (tph->tp_status & TP_STATUS_CSUMNOTREADY)
-		    mark_tcp_udp_cksum_calc (first_b0, &l4_hdr_sz);
-		  if (tph->tp_snaplen > apif->host_mtu)
-		    fill_gso_buffer_flags (first_b0, apif->host_mtu,
-					   l4_hdr_sz);
-		}
-	      else
-		buffer_add_to_chain (vm, bi0, first_bi0, prev_bi0);
-
-	      offset += bytes_to_copy;
-	      data_len -= bytes_to_copy;
-	    }
-	  n_rx_packets++;
-	  n_rx_bytes += tph->tp_snaplen;
-	  to_next[0] = first_bi0;
-	  to_next += 1;
-	  n_left_to_next--;
-
-	  /* drop partial packets */
-	  if (PREDICT_FALSE (tph->tp_len != tph->tp_snaplen))
-	    {
-	      next0 = VNET_DEVICE_INPUT_NEXT_DROP;
-	      first_b0->error =
-		node->errors[AF_PACKET_INPUT_ERROR_PARTIAL_PKT];
-	    }
-	  else
-	    {
-	      next0 = VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT;
-
-	      if (PREDICT_FALSE (apif->per_interface_next_index != ~0))
-		next0 = apif->per_interface_next_index;
-
-	      /* redirect if feature path enabled */
-	      vnet_feature_start_device_input_x1 (apif->sw_if_index, &next0,
-						  first_b0);
-	    }
-
-	  /* trace */
-	  if (PREDICT_FALSE
-	      (n_trace > 0 && vlib_trace_buffer (vm, node, next0, first_b0,
-						 /* follow_chain */ 0)))
-	    {
-	      af_packet_input_trace_t *tr;
-	      vlib_set_trace_count (vm, node, --n_trace);
-	      tr = vlib_add_trace (vm, node, first_b0, sizeof (*tr));
-	      tr->next_index = next0;
-	      tr->hw_if_index = apif->hw_if_index;
-	      clib_memcpy_fast (&tr->tph, tph, sizeof (struct tpacket2_hdr));
-	    }
-
-	  /* enque and take next packet */
-	  vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
-					   n_left_to_next, first_bi0, next0);
-
-	  /* next packet */
-	  tph->tp_status = TP_STATUS_KERNEL;
-	  rx_frame = (rx_frame + 1) % frame_num;
-	  tph = (struct tpacket2_hdr *) (block_start + rx_frame * frame_size);
-	}
-
-      vlib_put_next_frame (vm, node, next_index, n_left_to_next);
-    }
-
-  apif->next_rx_frame = rx_frame;
-
-  vlib_increment_combined_counter
-    (vnet_get_main ()->interface_main.combined_sw_if_counters
-     + VNET_INTERFACE_COUNTER_RX,
-     vlib_get_thread_index (), apif->hw_if_index, n_rx_packets, n_rx_bytes);
-
-  vnet_device_increment_rx_packets (thread_index, n_rx_packets);
-  return n_rx_packets;
-}
-
-VLIB_NODE_FN (af_packet_input_node) (vlib_main_t * vm,
-				     vlib_node_runtime_t * node,
-				     vlib_frame_t * frame)
-{
-  u32 n_rx_packets = 0;
-  af_packet_main_t *apm = &af_packet_main;
-  vnet_hw_if_rxq_poll_vector_t *pv;
-  pv = vnet_hw_if_get_rxq_poll_vector (vm, node);
-  for (int i = 0; i < vec_len (pv); i++)
-    {
-      af_packet_if_t *apif;
-      apif = vec_elt_at_index (apm->interfaces, pv[i].dev_instance);
-      if (apif->is_admin_up)
-	n_rx_packets += af_packet_device_input_fn (vm, node, frame, apif);
-    }
-
-  return n_rx_packets;
-}
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (af_packet_input_node) = {
-  .name = "af-packet-input",
-  .flags = VLIB_NODE_FLAG_TRACE_SUPPORTED,
-  .sibling_of = "device-input",
-  .format_trace = format_af_packet_input_trace,
-  .type = VLIB_NODE_TYPE_INPUT,
-  .state = VLIB_NODE_STATE_INTERRUPT,
-  .n_errors = AF_PACKET_INPUT_N_ERROR,
-  .error_strings = af_packet_input_error_strings,
-};
-/* *INDENT-ON* */
-
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */