misc: deprecate netmap and ixge drivers

Both are out of sync for long time...

Type: refactor

Change-Id: I7de3170d35330fc172501d87655dfef91998b8fe
Signed-off-by: Damjan Marion <damarion@cisco.com>

12 files changed, 0 insertions, 2169 deletions

diff --git a/src/vnet/CMakeLists.txt b/src/vnet/CMakeLists.txt
index eb96699193c..6f9f6bcc974 100644
--- a/src/vnet/CMakeLists.txt
+++ b/src/vnet/CMakeLists.txt
@@ -1090,7 +1090,6 @@ list(APPEND VNET_HEADERS
 list(APPEND VNET_MULTIARCH_SOURCES
   devices/virtio/vhost_user_input.c
   devices/virtio/vhost_user_output.c
-  devices/netmap/node.c
   devices/virtio/node.c
   devices/af_packet/node.c
   devices/virtio/device.c
@@ -1202,7 +1201,6 @@ list(APPEND VNET_SOURCES
 )
 
 list(APPEND VNET_MULTIARCH_SOURCES
-  devices/netmap/device.c
   devices/af_packet/device.c
 )
 
@@ -1213,24 +1211,6 @@ list(APPEND VNET_HEADERS
 list(APPEND VNET_API_FILES devices/af_packet/af_packet.api)
 
 ##############################################################################
-# NETMAP interface
-##############################################################################
-
-list(APPEND VNET_SOURCES
-  devices/netmap/netmap.c
-  devices/netmap/device.c
-  devices/netmap/node.c
-  devices/netmap/cli.c
-  devices/netmap/netmap_api.c
-)
-
-list(APPEND VNET_HEADERS
-  devices/netmap/netmap.h
-)
-
-list(APPEND VNET_API_FILES devices/netmap/netmap.api)
-
-##############################################################################
 # Driver feature graph arc support
 ##############################################################################
 
diff --git a/src/vnet/devices/netmap/FEATURE.yaml b/src/vnet/devices/netmap/FEATURE.yaml
deleted file mode 100644
index e23e5c243e7..00000000000
--- a/src/vnet/devices/netmap/FEATURE.yaml
+++ /dev/null
@@ -1,12 +0,0 @@
----
-name: Netmap Device
-maintainer: Damjan Marion <damarion@cisco.com>
-features:
-  - L4 checksum offload
-description: "Create a netmap interface, which is a high speed user-space
-              interface that allows VPP to patch into a linux namespace,
-              a linux container, or a physical NIC without the use of DPDK."
-missing:
-  - API dump
-state: production
-properties: [API, CLI, STATS, MULTITHREAD]
diff --git a/src/vnet/devices/netmap/cli.c b/src/vnet/devices/netmap/cli.c
deleted file mode 100644
index 713632947a1..00000000000
--- a/src/vnet/devices/netmap/cli.c
+++ /dev/null
@@ -1,236 +0,0 @@
-/*
- *------------------------------------------------------------------
- * 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 <stdint.h>
-#include <net/if.h>
-#include <sys/ioctl.h>
-
-#include <vlib/vlib.h>
-#include <vlib/unix/unix.h>
-#include <vnet/ethernet/ethernet.h>
-
-#include <vnet/devices/netmap/net_netmap.h>
-#include <vnet/devices/netmap/netmap.h>
-
-static clib_error_t *
-netmap_create_command_fn (vlib_main_t * vm, unformat_input_t * input,
-			  vlib_cli_command_t * cmd)
-{
-  unformat_input_t _line_input, *line_input = &_line_input;
-  u8 *host_if_name = NULL;
-  u8 hwaddr[6];
-  u8 *hw_addr_ptr = 0;
-  int r;
-  u8 is_pipe = 0;
-  u8 is_master = 0;
-  u32 sw_if_index = ~0;
-  clib_error_t *error = NULL;
-
-  /* Get a line of input. */
-  if (!unformat_user (input, unformat_line_input, line_input))
-    return 0;
-
-  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
-    {
-      if (unformat (line_input, "name %s", &host_if_name))
-	;
-      else
-	if (unformat
-	    (line_input, "hw-addr %U", unformat_ethernet_address, hwaddr))
-	hw_addr_ptr = hwaddr;
-      else if (unformat (line_input, "pipe"))
-	is_pipe = 1;
-      else if (unformat (line_input, "master"))
-	is_master = 1;
-      else if (unformat (line_input, "slave"))
-	is_master = 0;
-      else
-	{
-	  error = clib_error_return (0, "unknown input `%U'",
-				     format_unformat_error, line_input);
-	  goto done;
-	}
-    }
-
-  if (host_if_name == NULL)
-    {
-      error = clib_error_return (0, "missing host interface name");
-      goto done;
-    }
-
-  r =
-    netmap_create_if (vm, host_if_name, hw_addr_ptr, is_pipe, is_master,
-		      &sw_if_index);
-
-  if (r == VNET_API_ERROR_SYSCALL_ERROR_1)
-    {
-      error = clib_error_return (0, "%s (errno %d)", strerror (errno), errno);
-      goto done;
-    }
-
-  if (r == VNET_API_ERROR_INVALID_INTERFACE)
-    {
-      error = clib_error_return (0, "Invalid interface name");
-      goto done;
-    }
-
-  if (r == VNET_API_ERROR_SUBIF_ALREADY_EXISTS)
-    {
-      error = clib_error_return (0, "Interface already exists");
-      goto done;
-    }
-
-  vlib_cli_output (vm, "%U\n", format_vnet_sw_if_index_name, vnet_get_main (),
-		   sw_if_index);
-
-done:
-  unformat_free (line_input);
-
-  return error;
-}
-
-/*?
- * '<em>netmap</em>' is a framework for very fast packet I/O from userspace.
- * '<em>VALE</em>' is an equally fast in-kernel software switch using the
- * netmap API. '<em>netmap</em>' includes '<em>netmap pipes</em>', a shared
- * memory packet transport channel. Together, they provide a high speed
- * user-space interface that allows VPP to patch into a linux namespace, a
- * linux container, or a physical NIC without the use of DPDK. Netmap/VALE
- * generates the '<em>netmap.ko</em>' kernel module that needs to be loaded
- * before netmap interfaces can be created.
- * - https://github.com/luigirizzo/netmap - Netmap/VALE repo.
- * - https://github.com/vpp-dev/netmap - VPP development package for Netmap/VALE,
- * which is a snapshot of the Netmap/VALE repo with minor changes to work
- * with containers and modified kernel drivers to work with NICs.
- *
- * Create a netmap interface that will attach to a linux interface.
- * The interface must already exist. Once created, a new netmap interface
- * will exist in VPP with the name '<em>netmap-<ifname></em>', where
- * '<em><ifname></em>' takes one of two forms:
- * - <b>ifname</b> - Linux interface to bind too.
- * - <b>valeXXX:YYY</b> -
- *   - Where '<em>valeXXX</em>' is an arbitrary name for a VALE
- *     interface that must start with '<em>vale</em>' and is less
- *     than 16 characters.
- *   - Where '<em>YYY</em>' is an existing linux namespace.
- *
- * This command has the following optional parameters:
- *
- * - <b>hw-addr <mac-addr></b> - Optional ethernet address, can be in either
- * X:X:X:X:X:X unix or X.X.X cisco format.
- *
- * - <b>pipe</b> - Optional flag to indicate that a '<em>netmap pipe</em>'
- * instance should be created.
- *
- * - <b>master | slave</b> - Optional flag to indicate whether VPP should
- * be the master or slave of the '<em>netmap pipe</em>'. Only considered
- * if '<em>pipe</em>' is entered. Defaults to '<em>slave</em>' if not entered.
- *
- * @cliexpar
- * Example of how to create a netmap interface tied to the linux
- * namespace '<em>vpp1</em>':
- * @cliexstart{create netmap name vale00:vpp1 hw-addr 02:FE:3F:34:15:9B pipe master}
- * netmap-vale00:vpp1
- * @cliexend
- * Once the netmap interface is created, enable the interface using:
- * @cliexcmd{set interface state netmap-vale00:vpp1 up}
-?*/
-/* *INDENT-OFF* */
-VLIB_CLI_COMMAND (netmap_create_command, static) = {
-  .path = "create netmap",
-  .short_help = "create netmap name <ifname>|valeXXX:YYY "
-    "[hw-addr <mac-addr>] [pipe] [master|slave]",
-  .function = netmap_create_command_fn,
-};
-/* *INDENT-ON* */
-
-static clib_error_t *
-netmap_delete_command_fn (vlib_main_t * vm, unformat_input_t * input,
-			  vlib_cli_command_t * cmd)
-{
-  unformat_input_t _line_input, *line_input = &_line_input;
-  u8 *host_if_name = NULL;
-  clib_error_t *error = NULL;
-
-  /* Get a line of input. */
-  if (!unformat_user (input, unformat_line_input, line_input))
-    return 0;
-
-  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
-    {
-      if (unformat (line_input, "name %s", &host_if_name))
-	;
-      else
-	{
-	  error = clib_error_return (0, "unknown input `%U'",
-				     format_unformat_error, line_input);
-	  goto done;
-	}
-    }
-
-  if (host_if_name == NULL)
-    {
-      error = clib_error_return (0, "missing host interface name");
-      goto done;
-    }
-
-  netmap_delete_if (vm, host_if_name);
-
-done:
-  unformat_free (line_input);
-
-  return error;
-}
-
-/*?
- * Delete a netmap interface. Use the '<em><ifname></em>' to identify
- * the netmap interface to be deleted. In VPP, netmap interfaces are
- * named as '<em>netmap-<ifname></em>', where '<em><ifname></em>'
- * takes one of two forms:
- * - <b>ifname</b> - Linux interface to bind too.
- * - <b>valeXXX:YYY</b> -
- *   - Where '<em>valeXXX</em>' is an arbitrary name for a VALE
- *     interface that must start with '<em>vale</em>' and is less
- *     than 16 characters.
- *   - Where '<em>YYY</em>' is an existing linux namespace.
- *
- * @cliexpar
- * Example of how to delete a netmap interface named '<em>netmap-vale00:vpp1</em>':
- * @cliexcmd{delete netmap name vale00:vpp1}
-?*/
-/* *INDENT-OFF* */
-VLIB_CLI_COMMAND (netmap_delete_command, static) = {
-  .path = "delete netmap",
-  .short_help = "delete netmap name <ifname>|valeXXX:YYY",
-  .function = netmap_delete_command_fn,
-};
-/* *INDENT-ON* */
-
-clib_error_t *
-netmap_cli_init (vlib_main_t * vm)
-{
-  return 0;
-}
-
-VLIB_INIT_FUNCTION (netmap_cli_init);
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vnet/devices/netmap/device.c b/src/vnet/devices/netmap/device.c
deleted file mode 100644
index 47407aaaa26..00000000000
--- a/src/vnet/devices/netmap/device.c
+++ /dev/null
@@ -1,252 +0,0 @@
-/*
- *------------------------------------------------------------------
- * 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 <stdint.h>
-#include <net/if.h>
-#include <sys/ioctl.h>
-
-#include <vlib/vlib.h>
-#include <vlib/unix/unix.h>
-#include <vnet/ethernet/ethernet.h>
-
-#include <vnet/devices/netmap/net_netmap.h>
-#include <vnet/devices/netmap/netmap.h>
-
-#define foreach_netmap_tx_func_error	       \
-_(NO_FREE_SLOTS, "no free tx slots")           \
-_(PENDING_MSGS, "pending msgs in tx ring")
-
-typedef enum
-{
-#define _(f,s) NETMAP_TX_ERROR_##f,
-  foreach_netmap_tx_func_error
-#undef _
-    NETMAP_TX_N_ERROR,
-} netmap_tx_func_error_t;
-
-static char *netmap_tx_func_error_strings[] = {
-#define _(n,s) s,
-  foreach_netmap_tx_func_error
-#undef _
-};
-
-
-static u8 *
-format_netmap_device_name (u8 * s, va_list * args)
-{
-  u32 i = va_arg (*args, u32);
-  netmap_main_t *apm = &netmap_main;
-  netmap_if_t *nif = pool_elt_at_index (apm->interfaces, i);
-
-  s = format (s, "netmap-%s", nif->host_if_name);
-  return s;
-}
-
-static u8 *
-format_netmap_device (u8 * s, va_list * args)
-{
-  u32 dev_instance = va_arg (*args, u32);
-  int verbose = va_arg (*args, int);
-  netmap_main_t *nm = &netmap_main;
-  netmap_if_t *nif = vec_elt_at_index (nm->interfaces, dev_instance);
-  u32 indent = format_get_indent (s);
-
-  s = format (s, "NETMAP interface");
-  if (verbose)
-    {
-      s = format (s, "\n%U version %d flags 0x%x"
-		  "\n%U region %u memsize 0x%x offset 0x%x"
-		  "\n%U tx_slots %u rx_slots %u tx_rings %u rx_rings %u",
-		  format_white_space, indent + 2,
-		  nif->req->nr_version,
-		  nif->req->nr_flags,
-		  format_white_space, indent + 2,
-		  nif->mem_region,
-		  nif->req->nr_memsize,
-		  nif->req->nr_offset,
-		  format_white_space, indent + 2,
-		  nif->req->nr_tx_slots,
-		  nif->req->nr_rx_slots,
-		  nif->req->nr_tx_rings, nif->req->nr_rx_rings);
-    }
-  return s;
-}
-
-static u8 *
-format_netmap_tx_trace (u8 * s, va_list * args)
-{
-  s = format (s, "Unimplemented...");
-  return s;
-}
-
-VNET_DEVICE_CLASS_TX_FN (netmap_device_class) (vlib_main_t * vm,
-					       vlib_node_runtime_t * node,
-					       vlib_frame_t * frame)
-{
-  netmap_main_t *nm = &netmap_main;
-  u32 *buffers = vlib_frame_vector_args (frame);
-  u32 n_left = frame->n_vectors;
-  f64 const time_constant = 1e3;
-  vnet_interface_output_runtime_t *rd = (void *) node->runtime_data;
-  netmap_if_t *nif = pool_elt_at_index (nm->interfaces, rd->dev_instance);
-  int cur_ring;
-
-  clib_spinlock_lock_if_init (&nif->lockp);
-
-  cur_ring = nif->first_tx_ring;
-
-  while (n_left && cur_ring <= nif->last_tx_ring)
-    {
-      struct netmap_ring *ring = NETMAP_TXRING (nif->nifp, cur_ring);
-      int n_free_slots = nm_ring_space (ring);
-      uint cur = ring->cur;
-
-      if (nm_tx_pending (ring))
-	{
-	  if (ioctl (nif->fd, NIOCTXSYNC, NULL) < 0)
-	    clib_unix_warning ("NIOCTXSYNC");
-	  clib_cpu_time_wait (time_constant);
-
-	  if (nm_tx_pending (ring) && !n_free_slots)
-	    {
-	      cur_ring++;
-	      continue;
-	    }
-	}
-
-      while (n_left && n_free_slots)
-	{
-	  vlib_buffer_t *b0 = 0;
-	  u32 bi = buffers[0];
-	  u32 len;
-	  u32 offset = 0;
-	  buffers++;
-
-	  struct netmap_slot *slot = &ring->slot[cur];
-
-	  do
-	    {
-	      b0 = vlib_get_buffer (vm, bi);
-	      len = b0->current_length;
-	      /* memcpy */
-	      clib_memcpy_fast ((u8 *) NETMAP_BUF (ring, slot->buf_idx) +
-				offset, vlib_buffer_get_current (b0), len);
-	      offset += len;
-	    }
-	  while ((bi = b0->next_buffer));
-
-	  slot->len = offset;
-	  cur = (cur + 1) % ring->num_slots;
-	  n_free_slots--;
-	  n_left--;
-	}
-      CLIB_MEMORY_BARRIER ();
-      ring->head = ring->cur = cur;
-    }
-
-  if (n_left < frame->n_vectors)
-    ioctl (nif->fd, NIOCTXSYNC, NULL);
-
-  clib_spinlock_unlock_if_init (&nif->lockp);
-
-  if (n_left)
-    vlib_error_count (vm, node->node_index,
-		      (n_left ==
-		       frame->n_vectors ? NETMAP_TX_ERROR_PENDING_MSGS :
-		       NETMAP_TX_ERROR_NO_FREE_SLOTS), n_left);
-
-  vlib_buffer_free (vm, vlib_frame_vector_args (frame), frame->n_vectors);
-  return frame->n_vectors;
-}
-
-static void
-netmap_set_interface_next_node (vnet_main_t * vnm, u32 hw_if_index,
-				u32 node_index)
-{
-  netmap_main_t *apm = &netmap_main;
-  vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
-  netmap_if_t *nif = pool_elt_at_index (apm->interfaces, hw->dev_instance);
-
-  /* Shut off redirection */
-  if (node_index == ~0)
-    {
-      nif->per_interface_next_index = node_index;
-      return;
-    }
-
-  nif->per_interface_next_index =
-    vlib_node_add_next (vlib_get_main (), netmap_input_node.index,
-			node_index);
-}
-
-static void
-netmap_clear_hw_interface_counters (u32 instance)
-{
-  /* Nothing for now */
-}
-
-static clib_error_t *
-netmap_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
-{
-  netmap_main_t *apm = &netmap_main;
-  vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
-  netmap_if_t *nif = pool_elt_at_index (apm->interfaces, hw->dev_instance);
-  u32 hw_flags;
-
-  nif->is_admin_up = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0;
-
-  if (nif->is_admin_up)
-    hw_flags = VNET_HW_INTERFACE_FLAG_LINK_UP;
-  else
-    hw_flags = 0;
-
-  vnet_hw_interface_set_flags (vnm, hw_if_index, hw_flags);
-
-  return 0;
-}
-
-static clib_error_t *
-netmap_subif_add_del_function (vnet_main_t * vnm,
-			       u32 hw_if_index,
-			       struct vnet_sw_interface_t *st, int is_add)
-{
-  /* Nothing for now */
-  return 0;
-}
-
-/* *INDENT-OFF* */
-VNET_DEVICE_CLASS (netmap_device_class) = {
-  .name = "netmap",
-  .format_device_name = format_netmap_device_name,
-  .format_device = format_netmap_device,
-  .format_tx_trace = format_netmap_tx_trace,
-  .tx_function_n_errors = NETMAP_TX_N_ERROR,
-  .tx_function_error_strings = netmap_tx_func_error_strings,
-  .rx_redirect_to_node = netmap_set_interface_next_node,
-  .clear_counters = netmap_clear_hw_interface_counters,
-  .admin_up_down_function = netmap_interface_admin_up_down,
-  .subif_add_del_function = netmap_subif_add_del_function,
-};
-/* *INDENT-ON* */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vnet/devices/netmap/dir.dox b/src/vnet/devices/netmap/dir.dox
deleted file mode 100644
index 7ddbf947c29..00000000000
--- a/src/vnet/devices/netmap/dir.dox
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- * Copyright (c) 2017 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.
- */
-
-/* Doxygen directory documentation */
-
-/**
-@dir
-@brief netmap Interface Implementation.
-
-This directory contains the source code for the netmap driver.
-
-*/
-/*? %%clicmd:group_label netmap %% ?*/
-/*? %%syscfg:group_label netmap %% ?*/
diff --git a/src/vnet/devices/netmap/net_netmap.h b/src/vnet/devices/netmap/net_netmap.h
deleted file mode 100644
index fd4253b7c0c..00000000000
--- a/src/vnet/devices/netmap/net_netmap.h
+++ /dev/null
@@ -1,650 +0,0 @@
-/*
- * Copyright (C) 2011-2014 Matteo Landi, Luigi Rizzo. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *   1. Redistributions of source code must retain the above copyright
- *      notice, this list of conditions and the following disclaimer.
- *   2. Redistributions in binary form must reproduce the above copyright
- *      notice, this list of conditions and the following disclaimer in the
- *      documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``S IS''AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-/*
- * $FreeBSD: head/sys/net/netmap.h 251139 2013-05-30 14:07:14Z luigi $
- *
- * Definitions of constants and the structures used by the netmap
- * framework, for the part visible to both kernel and userspace.
- * Detailed info on netmap is available with "man netmap" or at
- *
- *	http://info.iet.unipi.it/~luigi/netmap/
- *
- * This API is also used to communicate with the VALE software switch
- */
-
-#ifndef _NET_NETMAP_H_
-#define _NET_NETMAP_H_
-
-#define	NETMAP_API	11		/* current API version */
-
-#define	NETMAP_MIN_API	11		/* min and max versions accepted */
-#define	NETMAP_MAX_API	15
-/*
- * Some fields should be cache-aligned to reduce contention.
- * The alignment is architecture and OS dependent, but rather than
- * digging into OS headers to find the exact value we use an estimate
- * that should cover most architectures.
- */
-#define NM_CACHE_ALIGN	128
-
-/*
- * --- Netmap data structures ---
- *
- * The userspace data structures used by netmap are shown below.
- * They are allocated by the kernel and mmap()ed by userspace threads.
- * Pointers are implemented as memory offsets or indexes,
- * so that they can be easily dereferenced in kernel and userspace.
-
-   KERNEL (opaque, obviously)
-
-  ====================================================================
-                                         |
-   USERSPACE                             |      struct netmap_ring
-                                         +---->+---------------+
-                                             / | head,cur,tail |
-   struct netmap_if (nifp, 1 per fd)        /  | buf_ofs       |
-    +---------------+                      /   | other fields  |
-    | ni_tx_rings   |                     /    +===============+
-    | ni_rx_rings   |                    /     | buf_idx, len  | slot[0]
-    |               |                   /      | flags, ptr    |
-    |               |                  /       +---------------+
-    +===============+                 /        | buf_idx, len  | slot[1]
-    | txring_ofs[0] | (rel.to nifp)--'         | flags, ptr    |
-    | txring_ofs[1] |                          +---------------+
-     (tx+1 entries)                           (num_slots entries)
-    | txring_ofs[t] |                          | buf_idx, len  | slot[n-1]
-    +---------------+                          | flags, ptr    |
-    | rxring_ofs[0] |                          +---------------+
-    | rxring_ofs[1] |
-     (rx+1 entries)
-    | rxring_ofs[r] |
-    +---------------+
-
- * For each "interface" (NIC, host stack, PIPE, VALE switch port) bound to
- * a file descriptor, the mmap()ed region contains a (logically readonly)
- * struct netmap_if pointing to struct netmap_ring's.
- *
- * There is one netmap_ring per physical NIC ring, plus one tx/rx ring
- * pair attached to the host stack (this pair is unused for non-NIC ports).
- *
- * All physical/host stack ports share the same memory region,
- * so that zero-copy can be implemented between them.
- * VALE switch ports instead have separate memory regions.
- *
- * The netmap_ring is the userspace-visible replica of the NIC ring.
- * Each slot has the index of a buffer (MTU-sized and residing in the
- * mmapped region), its length and some flags. An extra 64-bit pointer
- * is provided for user-supplied buffers in the tx path.
- *
- * In user space, the buffer address is computed as
- *	(char *)ring + buf_ofs + index * NETMAP_BUF_SIZE
- *
- * Added in NETMAP_API 11:
- *
- * + NIOCREGIF can request the allocation of extra spare buffers from
- *   the same memory pool. The desired number of buffers must be in
- *   nr_arg3. The ioctl may return fewer buffers, depending on memory
- *   availability. nr_arg3 will return the actual value, and, once
- *   mapped, nifp->ni_bufs_head will be the index of the first buffer.
- *
- *   The buffers are linked to each other using the first uint32_t
- *   as the index. On close, ni_bufs_head must point to the list of
- *   buffers to be released.
- *
- * + NIOCREGIF can request space for extra rings (and buffers)
- *   allocated in the same memory space. The number of extra rings
- *   is in nr_arg1, and is advisory. This is a no-op on NICs where
- *   the size of the memory space is fixed.
- *
- * + NIOCREGIF can attach to PIPE rings sharing the same memory
- *   space with a parent device. The ifname indicates the parent device,
- *   which must already exist. Flags in nr_flags indicate if we want to
- *   bind the master or slave side, the index (from nr_ringid)
- *   is just a cookie and does not need to be sequential.
- *
- * + NIOCREGIF can also attach to 'monitor' rings that replicate
- *   the content of specific rings, also from the same memory space.
- *
- *   Extra flags in nr_flags support the above functions.
- *   Application libraries may use the following naming scheme:
- *	netmap:foo			all NIC ring pairs
- *	netmap:foo^			only host ring pair
- *	netmap:foo+			all NIC ring + host ring pairs
- *	netmap:foo-k			the k-th NIC ring pair
- *	netmap:foo{k			PIPE ring pair k, master side
- *	netmap:foo}k			PIPE ring pair k, slave side
- */
-
-/*
- * struct netmap_slot is a buffer descriptor
- */
-struct netmap_slot {
-	uint32_t buf_idx;	/* buffer index */
-	uint16_t len;		/* length for this slot */
-	uint16_t flags;		/* buf changed, etc. */
-	uint64_t ptr;		/* pointer for indirect buffers */
-};
-
-/*
- * The following flags control how the slot is used
- */
-
-#define	NS_BUF_CHANGED	0x0001	/* buf_idx changed */
-	/*
-	 * must be set whenever buf_idx is changed (as it might be
-	 * necessary to recompute the physical address and mapping)
-	 *
-	 * It is also set by the kernel whenever the buf_idx is
-	 * changed internally (e.g., by pipes). Applications may
-	 * use this information to know when they can reuse the
-	 * contents of previously prepared buffers.
-	 */
-
-#define	NS_REPORT	0x0002	/* ask the hardware to report results */
-	/*
-	 * Request notification when slot is used by the hardware.
-	 * Normally transmit completions are handled lazily and
-	 * may be unreported. This flag lets us know when a slot
-	 * has been sent (e.g. to terminate the sender).
-	 */
-
-#define	NS_FORWARD	0x0004	/* pass packet 'forward' */
-	/*
-	 * (Only for physical ports, rx rings with NR_FORWARD set).
-	 * Slot released to the kernel (i.e. before ring->head) with
-	 * this flag set are passed to the peer ring (host/NIC),
-	 * thus restoring the host-NIC connection for these slots.
-	 * This supports efficient traffic monitoring or firewalling.
-	 */
-
-#define	NS_NO_LEARN	0x0008	/* disable bridge learning */
- 	/*
-	 * On a VALE switch, do not 'learn' the source port for
- 	 * this buffer.
-	 */
-
-#define	NS_INDIRECT	0x0010	/* userspace buffer */
- 	/*
-	 * (VALE tx rings only) data is in a userspace buffer,
-	 * whose address is in the 'ptr' field in the slot.
-	 */
-
-#define	NS_MOREFRAG	0x0020	/* packet has more fragments */
- 	/*
-	 * (VALE ports only)
-	 * Set on all but the last slot of a multi-segment packet.
-	 * The 'len' field refers to the individual fragment.
-	 */
-
-#define	NS_PORT_SHIFT	8
-#define	NS_PORT_MASK	(0xff << NS_PORT_SHIFT)
-	/*
- 	 * The high 8 bits of the flag, if not zero, indicate the
-	 * destination port for the VALE switch, overriding
- 	 * the lookup table.
- 	 */
-
-#define	NS_RFRAGS(_slot)	( ((_slot)->flags >> 8) & 0xff)
-	/*
-	 * (VALE rx rings only) the high 8 bits
-	 *  are the number of fragments.
-	 */
-
-
-/*
- * struct netmap_ring
- *
- * Netmap representation of a TX or RX ring (also known as "queue").
- * This is a queue implemented as a fixed-size circular array.
- * At the software level the important fields are: head, cur, tail.
- *
- * In TX rings:
- *
- *	head	first slot available for transmission.
- *	cur	wakeup point. select() and poll() will unblock
- *		when 'tail' moves past 'cur'
- *	tail	(readonly) first slot reserved to the kernel
- *
- *	[head .. tail-1] can be used for new packets to send;
- *	'head' and 'cur' must be incremented as slots are filled
- *	    with new packets to be sent;
- *	'cur' can be moved further ahead if we need more space
- *	for new transmissions. XXX todo (2014-03-12)
- *
- * In RX rings:
- *
- *	head	first valid received packet
- *	cur	wakeup point. select() and poll() will unblock
- *		when 'tail' moves past 'cur'
- *	tail	(readonly) first slot reserved to the kernel
- *
- *	[head .. tail-1] contain received packets;
- *	'head' and 'cur' must be incremented as slots are consumed
- *		and can be returned to the kernel;
- *	'cur' can be moved further ahead if we want to wait for
- *		new packets without returning the previous ones.
- *
- * DATA OWNERSHIP/LOCKING:
- *	The netmap_ring, and all slots and buffers in the range
- *	[head .. tail-1] are owned by the user program;
- *	the kernel only accesses them during a netmap system call
- *	and in the user thread context.
- *
- *	Other slots and buffers are reserved for use by the kernel
- */
-struct netmap_ring {
-	/*
-	 * buf_ofs is meant to be used through macros.
-	 * It contains the offset of the buffer region from this
-	 * descriptor.
-	 */
-	const int64_t	buf_ofs;
-	const uint32_t	num_slots;	/* number of slots in the ring. */
-	const uint32_t	nr_buf_size;
-	const uint16_t	ringid;
-	const uint16_t	dir;		/* 0: tx, 1: rx */
-
-	uint32_t        head;		/* (u) first user slot */
-	uint32_t        cur;		/* (u) wakeup point */
-	uint32_t	tail;		/* (k) first kernel slot */
-
-	uint32_t	flags;
-
-	struct timeval	ts;		/* (k) time of last *sync() */
-
-	/* opaque room for a mutex or similar object */
-#if !defined(_WIN32) || defined(__CYGWIN__)
-	uint8_t	__attribute__((__aligned__(NM_CACHE_ALIGN))) sem[128];
-#else
-	uint8_t	__declspec(align(NM_CACHE_ALIGN)) sem[128];
-#endif
-
-	/* the slots follow. This struct has variable size */
-	struct netmap_slot slot[0];	/* array of slots. */
-};
-
-
-/*
- * RING FLAGS
- */
-#define	NR_TIMESTAMP	0x0002		/* set timestamp on *sync() */
-	/*
-	 * updates the 'ts' field on each netmap syscall. This saves
-	 * saves a separate gettimeofday(), and is not much worse than
-	 * software timestamps generated in the interrupt handler.
-	 */
-
-#define	NR_FORWARD	0x0004		/* enable NS_FORWARD for ring */
- 	/*
-	 * Enables the NS_FORWARD slot flag for the ring.
-	 */
-
-
-/*
- * Netmap representation of an interface and its queue(s).
- * This is initialized by the kernel when binding a file
- * descriptor to a port, and should be considered as readonly
- * by user programs. The kernel never uses it.
- *
- * There is one netmap_if for each file descriptor on which we want
- * to select/poll.
- * select/poll operates on one or all pairs depending on the value of
- * nmr_queueid passed on the ioctl.
- */
-struct netmap_if {
-	char		ni_name[IFNAMSIZ]; /* name of the interface. */
-	const uint32_t	ni_version;	/* API version, currently unused */
-	const uint32_t	ni_flags;	/* properties */
-#define	NI_PRIV_MEM	0x1		/* private memory region */
-
-	/*
-	 * The number of packet rings available in netmap mode.
-	 * Physical NICs can have different numbers of tx and rx rings.
-	 * Physical NICs also have a 'host' ring pair.
-	 * Additionally, clients can request additional ring pairs to
-	 * be used for internal communication.
-	 */
-	const uint32_t	ni_tx_rings;	/* number of HW tx rings */
-	const uint32_t	ni_rx_rings;	/* number of HW rx rings */
-
-	uint32_t	ni_bufs_head;	/* head index for extra bufs */
-	uint32_t	ni_spare1[5];
-	/*
-	 * The following array contains the offset of each netmap ring
-	 * from this structure, in the following order:
-	 * NIC tx rings (ni_tx_rings); host tx ring (1); extra tx rings;
-	 * NIC rx rings (ni_rx_rings); host tx ring (1); extra rx rings.
-	 *
-	 * The area is filled up by the kernel on NIOCREGIF,
-	 * and then only read by userspace code.
-	 */
-	const ssize_t	ring_ofs[0];
-};
-
-
-#ifndef NIOCREGIF
-/*
- * ioctl names and related fields
- *
- * NIOCTXSYNC, NIOCRXSYNC synchronize tx or rx queues,
- *	whose identity is set in NIOCREGIF through nr_ringid.
- *	These are non blocking and take no argument.
- *
- * NIOCGINFO takes a struct ifreq, the interface name is the input,
- *	the outputs are number of queues and number of descriptor
- *	for each queue (useful to set number of threads etc.).
- *	The info returned is only advisory and may change before
- *	the interface is bound to a file descriptor.
- *
- * NIOCREGIF takes an interface name within a struct nmre,
- *	and activates netmap mode on the interface (if possible).
- *
- * The argument to NIOCGINFO/NIOCREGIF overlays struct ifreq so we
- * can pass it down to other NIC-related ioctls.
- *
- * The actual argument (struct nmreq) has a number of options to request
- * different functions.
- * The following are used in NIOCREGIF when nr_cmd == 0:
- *
- * nr_name	(in)
- *	The name of the port (em0, valeXXX:YYY, etc.)
- *	limited to IFNAMSIZ for backward compatibility.
- *
- * nr_version	(in/out)
- *	Must match NETMAP_API as used in the kernel, error otherwise.
- *	Always returns the desired value on output.
- *
- * nr_tx_slots, nr_tx_slots, nr_tx_rings, nr_rx_rings (in/out)
- *	On input, non-zero values may be used to reconfigure the port
- *	according to the requested values, but this is not guaranteed.
- *	On output the actual values in use are reported.
- *
- * nr_ringid (in)
- *	Indicates how rings should be bound to the file descriptors.
- *	If nr_flags != 0, then the low bits (in NETMAP_RING_MASK)
- *	are used to indicate the ring number, and nr_flags specifies
- *	the actual rings to bind. NETMAP_NO_TX_POLL is unaffected.
- *
- *	NOTE: THE FOLLOWING (nr_flags == 0) IS DEPRECATED:
- *	If nr_flags == 0, NETMAP_HW_RING and NETMAP_SW_RING control
- *	the binding as follows:
- *	0 (default)			binds all physical rings
- *	NETMAP_HW_RING | ring number	binds a single ring pair
- *	NETMAP_SW_RING			binds only the host tx/rx rings
- *
- *	NETMAP_NO_TX_POLL can be OR-ed to make select()/poll() push
- *		packets on tx rings only if POLLOUT is set.
- *		The default is to push any pending packet.
- *
- *	NETMAP_DO_RX_POLL can be OR-ed to make select()/poll() release
- *		packets on rx rings also when POLLIN is NOT set.
- *		The default is to touch the rx ring only with POLLIN.
- *		Note that this is the opposite of TX because it
- *		reflects the common usage.
- *
- *	NOTE: NETMAP_PRIV_MEM IS DEPRECATED, use nr_arg2 instead.
- *	NETMAP_PRIV_MEM is set on return for ports that do not use
- *		the global memory allocator.
- *		This information is not significant and applications
- *		should look at the region id in nr_arg2
- *
- * nr_flags	is the recommended mode to indicate which rings should
- *		be bound to a file descriptor. Values are NR_REG_*
- *
- * nr_arg1 (in)	The number of extra rings to be reserved.
- *		Especially when allocating a VALE port the system only
- *		allocates the amount of memory needed for the port.
- *		If more shared memory rings are desired (e.g. for pipes),
- *		the first invocation for the same basename/allocator
- *		should specify a suitable number. Memory cannot be
- *		extended after the first allocation without closing
- *		all ports on the same region.
- *
- * nr_arg2 (in/out) The identity of the memory region used.
- *		On input, 0 means the system decides autonomously,
- *		other values may try to select a specific region.
- *		On return the actual value is reported.
- *		Region '1' is the global allocator, normally shared
- *		by all interfaces. Other values are private regions.
- *		If two ports the same region zero-copy is possible.
- *
- * nr_arg3 (in/out)	number of extra buffers to be allocated.
- *
- *
- *
- * nr_cmd (in)	if non-zero indicates a special command:
- *	NETMAP_BDG_ATTACH	 and nr_name = vale*:ifname
- *		attaches the NIC to the switch; nr_ringid specifies
- *		which rings to use. Used by vale-ctl -a ...
- *	    nr_arg1 = NETMAP_BDG_HOST also attaches the host port
- *		as in vale-ctl -h ...
- *
- *	NETMAP_BDG_DETACH	and nr_name = vale*:ifname
- *		disconnects a previously attached NIC.
- *		Used by vale-ctl -d ...
- *
- *	NETMAP_BDG_LIST
- *		list the configuration of VALE switches.
- *
- *	NETMAP_BDG_VNET_HDR
- *		Set the virtio-net header length used by the client
- *		of a VALE switch port.
- *
- *	NETMAP_BDG_NEWIF
- *		create a persistent VALE port with name nr_name.
- *		Used by vale-ctl -n ...
- *
- *	NETMAP_BDG_DELIF
- *		delete a persistent VALE port. Used by vale-ctl -d ...
- *
- * nr_arg1, nr_arg2, nr_arg3  (in/out)		command specific
- *
- *
- *
- */
-
-
-/*
- * struct nmreq overlays a struct ifreq (just the name)
- */
-struct nmreq {
-	char		nr_name[IFNAMSIZ];
-	uint32_t	nr_version;	/* API version */
-	uint32_t	nr_offset;	/* nifp offset in the shared region */
-	uint32_t	nr_memsize;	/* size of the shared region */
-	uint32_t	nr_tx_slots;	/* slots in tx rings */
-	uint32_t	nr_rx_slots;	/* slots in rx rings */
-	uint16_t	nr_tx_rings;	/* number of tx rings */
-	uint16_t	nr_rx_rings;	/* number of rx rings */
-
-	uint16_t	nr_ringid;	/* ring(s) we care about */
-#define NETMAP_HW_RING		0x4000	/* single NIC ring pair */
-#define NETMAP_SW_RING		0x2000	/* only host ring pair */
-
-#define NETMAP_RING_MASK	0x0fff	/* the ring number */
-
-#define NETMAP_NO_TX_POLL	0x1000	/* no automatic txsync on poll */
-
-#define NETMAP_DO_RX_POLL	0x8000	/* DO automatic rxsync on poll */
-
-	uint16_t	nr_cmd;
-#define NETMAP_BDG_ATTACH	1	/* attach the NIC */
-#define NETMAP_BDG_DETACH	2	/* detach the NIC */
-#define NETMAP_BDG_REGOPS	3	/* register bridge callbacks */
-#define NETMAP_BDG_LIST		4	/* get bridge's info */
-#define NETMAP_BDG_VNET_HDR     5       /* set the port virtio-net-hdr length */
-#define NETMAP_BDG_OFFSET	NETMAP_BDG_VNET_HDR	/* deprecated alias */
-#define NETMAP_BDG_NEWIF	6	/* create a virtual port */
-#define NETMAP_BDG_DELIF	7	/* destroy a virtual port */
-#define NETMAP_PT_HOST_CREATE	8	/* create ptnetmap kthreads */
-#define NETMAP_PT_HOST_DELETE	9	/* delete ptnetmap kthreads */
-#define NETMAP_BDG_POLLING_ON	10	/* delete polling kthread */
-#define NETMAP_BDG_POLLING_OFF	11	/* delete polling kthread */
-#define NETMAP_VNET_HDR_GET	12      /* get the port virtio-net-hdr length */
-	uint16_t	nr_arg1;	/* reserve extra rings in NIOCREGIF */
-#define NETMAP_BDG_HOST		1	/* attach the host stack on ATTACH */
-
-	uint16_t	nr_arg2;
-	uint32_t	nr_arg3;	/* req. extra buffers in NIOCREGIF */
-	uint32_t	nr_flags;
-	/* various modes, extends nr_ringid */
-	uint32_t	spare2[1];
-};
-
-#define NR_REG_MASK		0xf /* values for nr_flags */
-enum {	NR_REG_DEFAULT	= 0,	/* backward compat, should not be used. */
-	NR_REG_ALL_NIC	= 1,
-	NR_REG_SW	= 2,
-	NR_REG_NIC_SW	= 3,
-	NR_REG_ONE_NIC	= 4,
-	NR_REG_PIPE_MASTER = 5,
-	NR_REG_PIPE_SLAVE = 6,
-};
-/* monitor uses the NR_REG to select the rings to monitor */
-#define NR_MONITOR_TX	0x100
-#define NR_MONITOR_RX	0x200
-#define NR_ZCOPY_MON	0x400
-/* request exclusive access to the selected rings */
-#define NR_EXCLUSIVE	0x800
-/* request ptnetmap host support */
-#define NR_PASSTHROUGH_HOST	NR_PTNETMAP_HOST /* deprecated */
-#define NR_PTNETMAP_HOST	0x1000
-#define NR_RX_RINGS_ONLY	0x2000
-#define NR_TX_RINGS_ONLY	0x4000
-/* Applications set this flag if they are able to deal with virtio-net headers,
- * that is send/receive frames that start with a virtio-net header.
- * If not set, NIOCREGIF will fail with netmap ports that require applications
- * to use those headers. If the flag is set, the application can use the
- * NETMAP_VNET_HDR_GET command to figure out the header length. */
-#define NR_ACCEPT_VNET_HDR	0x8000
-
-
-/*
- * Windows does not have _IOWR(). _IO(), _IOW() and _IOR() are defined
- * in ws2def.h but not sure if they are in the form we need.
- * XXX so we redefine them
- * in a convenient way to use for DeviceIoControl signatures
- */
-#ifdef _WIN32
-#undef _IO	// ws2def.h
-#define _WIN_NM_IOCTL_TYPE 40000
-#define _IO(_c, _n)	CTL_CODE(_WIN_NM_IOCTL_TYPE, ((_n) + 0x800) , \
-		METHOD_BUFFERED, FILE_ANY_ACCESS  )
-#define _IO_direct(_c, _n)	CTL_CODE(_WIN_NM_IOCTL_TYPE, ((_n) + 0x800) , \
-		METHOD_OUT_DIRECT, FILE_ANY_ACCESS  )
-
-#define _IOWR(_c, _n, _s)	_IO(_c, _n)
-
-/* We havesome internal sysctl in addition to the externally visible ones */
-#define NETMAP_MMAP _IO_direct('i', 160)	// note METHOD_OUT_DIRECT
-#define NETMAP_POLL _IO('i', 162)
-
-/* and also two setsockopt for sysctl emulation */
-#define NETMAP_SETSOCKOPT _IO('i', 140)
-#define NETMAP_GETSOCKOPT _IO('i', 141)
-
-
-//These linknames are for the Netmap Core Driver
-#define NETMAP_NT_DEVICE_NAME			L"\\Device\\NETMAP"
-#define NETMAP_DOS_DEVICE_NAME			L"\\DosDevices\\netmap"
-
-//Definition of a structure used to pass a virtual address within an IOCTL
-typedef struct _MEMORY_ENTRY {
-	PVOID       pUsermodeVirtualAddress;
-} MEMORY_ENTRY, *PMEMORY_ENTRY;
-
-typedef struct _POLL_REQUEST_DATA {
-	int events;
-	int timeout;
-	int revents;
-} POLL_REQUEST_DATA;
-
-#endif /* _WIN32 */
-
-/*
- * FreeBSD uses the size value embedded in the _IOWR to determine
- * how much to copy in/out. So we need it to match the actual
- * data structure we pass. We put some spares in the structure
- * to ease compatibility with other versions
- */
-#define NIOCGINFO	_IOWR('i', 145, struct nmreq) /* return IF info */
-#define NIOCREGIF	_IOWR('i', 146, struct nmreq) /* interface register */
-#define NIOCTXSYNC	_IO('i', 148) /* sync tx queues */
-#define NIOCRXSYNC	_IO('i', 149) /* sync rx queues */
-#define NIOCCONFIG	_IOWR('i',150, struct nm_ifreq) /* for ext. modules */
-#endif /* !NIOCREGIF */
-
-
-/*
- * Helper functions for kernel and userspace
- */
-
-/*
- * check if space is available in the ring.
- */
-static inline int
-nm_ring_empty(struct netmap_ring *ring)
-{
-	return (ring->cur == ring->tail);
-}
-
-/*
- * Opaque structure that is passed to an external kernel
- * module via ioctl(fd, NIOCCONFIG, req) for a user-owned
- * bridge port (at this point ephemeral VALE interface).
- */
-#define NM_IFRDATA_LEN 256
-struct nm_ifreq {
-	char nifr_name[IFNAMSIZ];
-	char data[NM_IFRDATA_LEN];
-};
-
-/*
- * netmap kernel thread configuration
- */
-/* bhyve/vmm.ko MSIX parameters for IOCTL */
-struct ptn_vmm_ioctl_msix {
-	uint64_t        msg;
-	uint64_t        addr;
-};
-
-/* IOCTL parameters */
-struct nm_kth_ioctl {
-	u_long				com;
-	/* TODO: use union */
-	union {
-		struct ptn_vmm_ioctl_msix msix;
-	} data;
-};
-
-/* Configuration of a ptnetmap ring */
-struct ptnet_ring_cfg {
-	uint64_t ioeventfd;		/* eventfd in linux, tsleep() parameter in FreeBSD */
-	uint64_t irqfd;			/* eventfd in linux, ioctl fd in FreeBSD */
-	struct nm_kth_ioctl ioctl;	/* ioctl parameter to send irq (only used in bhyve/FreeBSD) */
-};
-#endif /* _NET_NETMAP_H_ */
diff --git a/src/vnet/devices/netmap/netmap.api b/src/vnet/devices/netmap/netmap.api
deleted file mode 100644
index a14753cad9c..00000000000
--- a/src/vnet/devices/netmap/netmap.api
+++ /dev/null
@@ -1,56 +0,0 @@
-/*
- * Copyright (c) 2015-2016 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.
- */
-
-option version = "1.0.0";
-
-/** \brief Create netmap
-    @param client_index - opaque cookie to identify the sender
-    @param context - sender context, to match reply w/ request
-    @param netmap_if_name - interface name
-    @param hw_addr - interface MAC
-    @param use_random_hw_addr - use random generated MAC
-    @param is_pipe - is pipe
-    @param is_master - 0=slave, 1=master
-*/
-autoreply define netmap_create
-{
-  u32 client_index;
-  u32 context;
-
-  u8 netmap_if_name[64];
-  u8 hw_addr[6];
-  u8 use_random_hw_addr;
-  u8 is_pipe;
-  u8 is_master;
-};
-
-/** \brief Delete netmap
-    @param client_index - opaque cookie to identify the sender
-    @param context - sender context, to match reply w/ request
-    @param netmap_if_name - interface name
-*/
-autoreply define netmap_delete
-{
-  u32 client_index;
-  u32 context;
-
-  u8 netmap_if_name[64];
-};
-
-/*
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vnet/devices/netmap/netmap.c b/src/vnet/devices/netmap/netmap.c
deleted file mode 100644
index 03d96216bb0..00000000000
--- a/src/vnet/devices/netmap/netmap.c
+++ /dev/null
@@ -1,314 +0,0 @@
-/*
- *------------------------------------------------------------------
- * 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 <stdint.h>
-#include <net/if.h>
-#include <sys/ioctl.h>
-#include <sys/types.h>
-#include <fcntl.h>
-#include <vnet/devices/netmap/net_netmap.h>
-
-#include <vlib/vlib.h>
-#include <vlib/unix/unix.h>
-#include <vnet/ethernet/ethernet.h>
-#include <vnet/devices/netmap/netmap.h>
-
-netmap_main_t netmap_main;
-
-static u32
-netmap_eth_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hi,
-			u32 flags)
-{
-  /* nothing for now */
-  return 0;
-}
-
-static clib_error_t *
-netmap_fd_read_ready (clib_file_t * uf)
-{
-  vlib_main_t *vm = vlib_get_main ();
-  netmap_main_t *nm = &netmap_main;
-  u32 idx = uf->private_data;
-
-  nm->pending_input_bitmap =
-    clib_bitmap_set (nm->pending_input_bitmap, idx, 1);
-
-  /* Schedule the rx node */
-  vlib_node_set_interrupt_pending (vm, netmap_input_node.index);
-
-  return 0;
-}
-
-static void
-close_netmap_if (netmap_main_t * nm, netmap_if_t * nif)
-{
-  if (nif->clib_file_index != ~0)
-    {
-      clib_file_del (&file_main, file_main.file_pool + nif->clib_file_index);
-      nif->clib_file_index = ~0;
-    }
-  else if (nif->fd > -1)
-    close (nif->fd);
-
-  if (nif->mem_region)
-    {
-      netmap_mem_region_t *reg = &nm->mem_regions[nif->mem_region];
-      if (--reg->refcnt == 0)
-	{
-	  munmap (reg->mem, reg->region_size);
-	  reg->region_size = 0;
-	}
-    }
-
-
-  mhash_unset (&nm->if_index_by_host_if_name, nif->host_if_name,
-	       &nif->if_index);
-  vec_free (nif->host_if_name);
-  vec_free (nif->req);
-
-  clib_memset (nif, 0, sizeof (*nif));
-  pool_put (nm->interfaces, nif);
-}
-
-int
-netmap_worker_thread_enable ()
-{
-  /* if worker threads are enabled, switch to polling mode */
-  foreach_vlib_main ((
-		       {
-		       vlib_node_set_state (this_vlib_main,
-					    netmap_input_node.index,
-					    VLIB_NODE_STATE_POLLING);
-		       }));
-
-  return 0;
-}
-
-int
-netmap_worker_thread_disable ()
-{
-  foreach_vlib_main ((
-		       {
-		       vlib_node_set_state (this_vlib_main,
-					    netmap_input_node.index,
-					    VLIB_NODE_STATE_INTERRUPT);
-		       }));
-
-  return 0;
-}
-
-int
-netmap_create_if (vlib_main_t * vm, u8 * if_name, u8 * hw_addr_set,
-		  u8 is_pipe, u8 is_master, u32 * sw_if_index)
-{
-  netmap_main_t *nm = &netmap_main;
-  int ret = 0;
-  netmap_if_t *nif = 0;
-  u8 hw_addr[6];
-  clib_error_t *error = 0;
-  vnet_sw_interface_t *sw;
-  vnet_main_t *vnm = vnet_get_main ();
-  uword *p;
-  struct nmreq *req = 0;
-  netmap_mem_region_t *reg;
-  vlib_thread_main_t *tm = vlib_get_thread_main ();
-  int fd;
-
-  p = mhash_get (&nm->if_index_by_host_if_name, if_name);
-  if (p)
-    return VNET_API_ERROR_SUBIF_ALREADY_EXISTS;
-
-  fd = open ("/dev/netmap", O_RDWR);
-  if (fd < 0)
-    return VNET_API_ERROR_SUBIF_ALREADY_EXISTS;
-
-  pool_get (nm->interfaces, nif);
-  nif->if_index = nif - nm->interfaces;
-  nif->fd = fd;
-  nif->clib_file_index = ~0;
-
-  vec_validate (req, 0);
-  nif->req = req;
-  req->nr_version = NETMAP_API;
-  req->nr_flags = NR_REG_ALL_NIC;
-
-  if (is_pipe)
-    req->nr_flags = is_master ? NR_REG_PIPE_MASTER : NR_REG_PIPE_SLAVE;
-  else
-    req->nr_flags = NR_REG_ALL_NIC;
-
-  req->nr_flags |= NR_ACCEPT_VNET_HDR;
-  snprintf (req->nr_name, IFNAMSIZ, "%s", if_name);
-  req->nr_name[IFNAMSIZ - 1] = 0;
-
-  if (ioctl (nif->fd, NIOCREGIF, req))
-    {
-      ret = VNET_API_ERROR_NOT_CONNECTED;
-      goto error;
-    }
-
-  nif->mem_region = req->nr_arg2;
-  vec_validate (nm->mem_regions, nif->mem_region);
-  reg = &nm->mem_regions[nif->mem_region];
-  if (reg->region_size == 0)
-    {
-      reg->mem = mmap (NULL, req->nr_memsize, PROT_READ | PROT_WRITE,
-		       MAP_SHARED, fd, 0);
-      clib_warning ("mem %p", reg->mem);
-      if (reg->mem == MAP_FAILED)
-	{
-	  ret = VNET_API_ERROR_NOT_CONNECTED;
-	  goto error;
-	}
-      reg->region_size = req->nr_memsize;
-    }
-  reg->refcnt++;
-
-  nif->nifp = NETMAP_IF (reg->mem, req->nr_offset);
-  nif->first_rx_ring = 0;
-  nif->last_rx_ring = 0;
-  nif->first_tx_ring = 0;
-  nif->last_tx_ring = 0;
-  nif->host_if_name = if_name;
-  nif->per_interface_next_index = ~0;
-
-  if (tm->n_vlib_mains > 1)
-    clib_spinlock_init (&nif->lockp);
-
-  {
-    clib_file_t template = { 0 };
-    template.read_function = netmap_fd_read_ready;
-    template.file_descriptor = nif->fd;
-    template.private_data = nif->if_index;
-    nif->clib_file_index = clib_file_add (&file_main, &template);
-  }
-
-  /*use configured or generate random MAC address */
-  if (hw_addr_set)
-    memcpy (hw_addr, hw_addr_set, 6);
-  else
-    {
-      f64 now = vlib_time_now (vm);
-      u32 rnd;
-      rnd = (u32) (now * 1e6);
-      rnd = random_u32 (&rnd);
-
-      memcpy (hw_addr + 2, &rnd, sizeof (rnd));
-      hw_addr[0] = 2;
-      hw_addr[1] = 0xfe;
-    }
-
-  error = ethernet_register_interface (vnm, netmap_device_class.index,
-				       nif->if_index, hw_addr,
-				       &nif->hw_if_index,
-				       netmap_eth_flag_change);
-
-  if (error)
-    {
-      clib_error_report (error);
-      ret = VNET_API_ERROR_SYSCALL_ERROR_1;
-      goto error;
-    }
-
-  sw = vnet_get_hw_sw_interface (vnm, nif->hw_if_index);
-  nif->sw_if_index = sw->sw_if_index;
-
-  mhash_set_mem (&nm->if_index_by_host_if_name, if_name, &nif->if_index, 0);
-
-  if (sw_if_index)
-    *sw_if_index = nif->sw_if_index;
-
-  if (tm->n_vlib_mains > 1 && pool_elts (nm->interfaces) == 1)
-    netmap_worker_thread_enable ();
-
-  return 0;
-
-error:
-  close_netmap_if (nm, nif);
-  return ret;
-}
-
-int
-netmap_delete_if (vlib_main_t * vm, u8 * host_if_name)
-{
-  vnet_main_t *vnm = vnet_get_main ();
-  netmap_main_t *nm = &netmap_main;
-  netmap_if_t *nif;
-  uword *p;
-  vlib_thread_main_t *tm = vlib_get_thread_main ();
-
-  p = mhash_get (&nm->if_index_by_host_if_name, host_if_name);
-  if (p == NULL)
-    {
-      clib_warning ("Host interface %s does not exist", host_if_name);
-      return VNET_API_ERROR_SYSCALL_ERROR_1;
-    }
-  nif = pool_elt_at_index (nm->interfaces, p[0]);
-
-  /* bring down the interface */
-  vnet_hw_interface_set_flags (vnm, nif->hw_if_index, 0);
-
-  ethernet_delete_interface (vnm, nif->hw_if_index);
-
-  close_netmap_if (nm, nif);
-
-  if (tm->n_vlib_mains > 1 && pool_elts (nm->interfaces) == 0)
-    netmap_worker_thread_disable ();
-
-  return 0;
-}
-
-static clib_error_t *
-netmap_init (vlib_main_t * vm)
-{
-  netmap_main_t *nm = &netmap_main;
-  vlib_thread_main_t *tm = vlib_get_thread_main ();
-  vlib_thread_registration_t *tr;
-  uword *p;
-
-  clib_memset (nm, 0, sizeof (netmap_main_t));
-
-  nm->input_cpu_first_index = 0;
-  nm->input_cpu_count = 1;
-
-  /* find out which cpus will be used for input */
-  p = hash_get_mem (tm->thread_registrations_by_name, "workers");
-  tr = p ? (vlib_thread_registration_t *) p[0] : 0;
-
-  if (tr && tr->count > 0)
-    {
-      nm->input_cpu_first_index = tr->first_index;
-      nm->input_cpu_count = tr->count;
-    }
-
-  mhash_init_vec_string (&nm->if_index_by_host_if_name, sizeof (uword));
-
-  vec_validate_aligned (nm->rx_buffers, tm->n_vlib_mains - 1,
-			CLIB_CACHE_LINE_BYTES);
-
-  return 0;
-}
-
-VLIB_INIT_FUNCTION (netmap_init);
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vnet/devices/netmap/netmap.h b/src/vnet/devices/netmap/netmap.h
deleted file mode 100644
index 29f855fda8e..00000000000
--- a/src/vnet/devices/netmap/netmap.h
+++ /dev/null
@@ -1,166 +0,0 @@
-/*
- *------------------------------------------------------------------
- * 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.
- *------------------------------------------------------------------
- */
-/*
- * Copyright (C) 2011-2014 Universita` di Pisa. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *   1. Redistributions of source code must retain the above copyright
- *      notice, this list of conditions and the following disclaimer.
- *   2. Redistributions in binary form must reproduce the above copyright
- *      notice, this list of conditions and the following disclaimer in the
- *      documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <vppinfra/lock.h>
-
-typedef struct
-{
-  CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
-  clib_spinlock_t lockp;
-  u8 *host_if_name;
-  uword if_index;
-  u32 hw_if_index;
-  u32 sw_if_index;
-  u32 clib_file_index;
-
-  u32 per_interface_next_index;
-  u8 is_admin_up;
-
-  /* netmap */
-  struct nmreq *req;
-  u16 mem_region;
-  int fd;
-  struct netmap_if *nifp;
-  u16 first_tx_ring;
-  u16 last_tx_ring;
-  u16 first_rx_ring;
-  u16 last_rx_ring;
-
-} netmap_if_t;
-
-typedef struct
-{
-  char *mem;
-  u32 region_size;
-  int refcnt;
-} netmap_mem_region_t;
-
-typedef struct
-{
-  CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
-  netmap_if_t *interfaces;
-
-  /* bitmap of pending rx interfaces */
-  uword *pending_input_bitmap;
-
-  /* rx buffer cache */
-  u32 **rx_buffers;
-
-  /* hash of host interface names */
-  mhash_t if_index_by_host_if_name;
-
-  /* vector of memory regions */
-  netmap_mem_region_t *mem_regions;
-
-  /* first cpu index */
-  u32 input_cpu_first_index;
-
-  /* total cpu count */
-  u32 input_cpu_count;
-} netmap_main_t;
-
-extern netmap_main_t netmap_main;
-extern vnet_device_class_t netmap_device_class;
-extern vlib_node_registration_t netmap_input_node;
-
-int netmap_create_if (vlib_main_t * vm, u8 * host_if_name, u8 * hw_addr_set,
-		      u8 is_pipe, u8 is_master, u32 * sw_if_index);
-int netmap_delete_if (vlib_main_t * vm, u8 * host_if_name);
-
-
-/* Macros and helper functions from sys/net/netmap_user.h */
-
-#ifdef _NET_NETMAP_H_
-
-#define _NETMAP_OFFSET(type, ptr, offset) \
-	((type)(void *)((char *)(ptr) + (offset)))
-
-#define NETMAP_IF(_base, _ofs)	_NETMAP_OFFSET(struct netmap_if *, _base, _ofs)
-
-#define NETMAP_TXRING(nifp, index) _NETMAP_OFFSET(struct netmap_ring *, \
-	nifp, (nifp)->ring_ofs[index] )
-
-#define NETMAP_RXRING(nifp, index) _NETMAP_OFFSET(struct netmap_ring *,	\
-	nifp, (nifp)->ring_ofs[index + (nifp)->ni_tx_rings + 1] )
-
-#define NETMAP_BUF(ring, index)				\
-	((char *)(ring) + (ring)->buf_ofs + ((index)*(ring)->nr_buf_size))
-
-#define NETMAP_BUF_IDX(ring, buf)			\
-	( ((char *)(buf) - ((char *)(ring) + (ring)->buf_ofs) ) / \
-		(ring)->nr_buf_size )
-
-static inline uint32_t
-nm_ring_next (struct netmap_ring *ring, uint32_t i)
-{
-  return (PREDICT_FALSE (i + 1 == ring->num_slots) ? 0 : i + 1);
-}
-
-
-/*
- * Return 1 if we have pending transmissions in the tx ring.
- * When everything is complete ring->head = ring->tail + 1 (modulo ring size)
- */
-static inline int
-nm_tx_pending (struct netmap_ring *ring)
-{
-  return nm_ring_next (ring, ring->tail) != ring->head;
-}
-
-static inline uint32_t
-nm_ring_space (struct netmap_ring *ring)
-{
-  int ret = ring->tail - ring->cur;
-  if (ret < 0)
-    ret += ring->num_slots;
-  return ret;
-}
-#endif
-
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vnet/devices/netmap/netmap_api.c b/src/vnet/devices/netmap/netmap_api.c
deleted file mode 100644
index ee05ec22d25..00000000000
--- a/src/vnet/devices/netmap/netmap_api.c
+++ /dev/null
@@ -1,137 +0,0 @@
-/*
- *------------------------------------------------------------------
- * netmap_api.c - netmap api
- *
- * 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 <vnet/vnet.h>
-#include <vlibmemory/api.h>
-
-#include <vnet/interface.h>
-#include <vnet/api_errno.h>
-#include <vnet/devices/netmap/netmap.h>
-
-#include <vnet/vnet_msg_enum.h>
-
-#define vl_typedefs		/* define message structures */
-#include <vnet/vnet_all_api_h.h>
-#undef vl_typedefs
-
-#define vl_endianfun		/* define message structures */
-#include <vnet/vnet_all_api_h.h>
-#undef vl_endianfun
-
-/* instantiate all the print functions we know about */
-#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
-#define vl_printfun
-#include <vnet/vnet_all_api_h.h>
-#undef vl_printfun
-
-#include <vlibapi/api_helper_macros.h>
-
-#define foreach_vpe_api_msg                             \
-_(NETMAP_CREATE, netmap_create)                                         \
-_(NETMAP_DELETE, netmap_delete)                                         \
-
-static void
-vl_api_netmap_create_t_handler (vl_api_netmap_create_t * mp)
-{
-  vlib_main_t *vm = vlib_get_main ();
-  vl_api_netmap_create_reply_t *rmp;
-  int rv = 0;
-  u8 *if_name = NULL;
-
-  if_name = format (0, "%s", mp->netmap_if_name);
-  vec_add1 (if_name, 0);
-
-  rv =
-    netmap_create_if (vm, if_name, mp->use_random_hw_addr ? 0 : mp->hw_addr,
-		      mp->is_pipe, mp->is_master, 0);
-
-  vec_free (if_name);
-
-  REPLY_MACRO (VL_API_NETMAP_CREATE_REPLY);
-}
-
-static void
-vl_api_netmap_delete_t_handler (vl_api_netmap_delete_t * mp)
-{
-  vlib_main_t *vm = vlib_get_main ();
-  vl_api_netmap_delete_reply_t *rmp;
-  int rv = 0;
-  u8 *if_name = NULL;
-
-  if_name = format (0, "%s", mp->netmap_if_name);
-  vec_add1 (if_name, 0);
-
-  rv = netmap_delete_if (vm, if_name);
-
-  vec_free (if_name);
-
-  REPLY_MACRO (VL_API_NETMAP_DELETE_REPLY);
-}
-
-/*
- * netmap_api_hookup
- * Add vpe's API message handlers to the table.
- * vlib has already mapped shared memory and
- * added the client registration handlers.
- * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
- */
-#define vl_msg_name_crc_list
-#include <vnet/vnet_all_api_h.h>
-#undef vl_msg_name_crc_list
-
-static void
-setup_message_id_table (api_main_t * am)
-{
-#define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
-  foreach_vl_msg_name_crc_netmap;
-#undef _
-}
-
-static clib_error_t *
-netmap_api_hookup (vlib_main_t * vm)
-{
-  api_main_t *am = vlibapi_get_main ();
-
-#define _(N,n)                                                  \
-    vl_msg_api_set_handlers(VL_API_##N, #n,                     \
-                           vl_api_##n##_t_handler,              \
-                           vl_noop_handler,                     \
-                           vl_api_##n##_t_endian,               \
-                           vl_api_##n##_t_print,                \
-                           sizeof(vl_api_##n##_t), 1);
-  foreach_vpe_api_msg;
-#undef _
-
-  /*
-   * Set up the (msg_name, crc, message-id) table
-   */
-  setup_message_id_table (am);
-
-  return 0;
-}
-
-VLIB_API_INIT_FUNCTION (netmap_api_hookup);
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vnet/devices/netmap/node.c b/src/vnet/devices/netmap/node.c
deleted file mode 100644
index bc55ecc8eb1..00000000000
--- a/src/vnet/devices/netmap/node.c
+++ /dev/null
@@ -1,298 +0,0 @@
-/*
- *------------------------------------------------------------------
- * 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 <stdint.h>
-#include <net/if.h>
-#include <sys/ioctl.h>
-
-#include <vlib/vlib.h>
-#include <vlib/unix/unix.h>
-#include <vnet/ethernet/ethernet.h>
-#include <vnet/devices/devices.h>
-#include <vnet/feature/feature.h>
-
-#include <vnet/devices/netmap/net_netmap.h>
-#include <vnet/devices/netmap/netmap.h>
-
-#define foreach_netmap_input_error
-
-typedef enum
-{
-#define _(f,s) NETMAP_INPUT_ERROR_##f,
-  foreach_netmap_input_error
-#undef _
-    NETMAP_INPUT_N_ERROR,
-} netmap_input_error_t;
-
-static char *netmap_input_error_strings[] = {
-#define _(n,s) s,
-  foreach_netmap_input_error
-#undef _
-};
-
-typedef struct
-{
-  u32 next_index;
-  u32 hw_if_index;
-  struct netmap_slot slot;
-} netmap_input_trace_t;
-
-static u8 *
-format_netmap_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 *);
-  netmap_input_trace_t *t = va_arg (*args, netmap_input_trace_t *);
-  u32 indent = format_get_indent (s);
-
-  s = format (s, "netmap: hw_if_index %d next-index %d",
-	      t->hw_if_index, t->next_index);
-  s = format (s, "\n%Uslot: flags 0x%x len %u buf_idx %u",
-	      format_white_space, indent + 2,
-	      t->slot.flags, t->slot.len, t->slot.buf_idx);
-  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;
-}
-
-always_inline uword
-netmap_device_input_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
-			vlib_frame_t * frame, netmap_if_t * nif)
-{
-  u32 next_index = VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT;
-  uword n_trace = vlib_get_trace_count (vm, node);
-  netmap_main_t *nm = &netmap_main;
-  u32 n_rx_packets = 0;
-  u32 n_rx_bytes = 0;
-  u32 *to_next = 0;
-  u32 n_free_bufs;
-  struct netmap_ring *ring;
-  int cur_ring;
-  u32 thread_index = vm->thread_index;
-  u32 n_buffer_bytes = vlib_buffer_get_default_data_size (vm);
-
-  if (nif->per_interface_next_index != ~0)
-    next_index = nif->per_interface_next_index;
-
-  n_free_bufs = vec_len (nm->rx_buffers[thread_index]);
-  if (PREDICT_FALSE (n_free_bufs < VLIB_FRAME_SIZE))
-    {
-      vec_validate (nm->rx_buffers[thread_index],
-		    VLIB_FRAME_SIZE + n_free_bufs - 1);
-      n_free_bufs +=
-	vlib_buffer_alloc (vm, &nm->rx_buffers[thread_index][n_free_bufs],
-			   VLIB_FRAME_SIZE);
-      _vec_len (nm->rx_buffers[thread_index]) = n_free_bufs;
-    }
-
-  cur_ring = nif->first_rx_ring;
-  while (cur_ring <= nif->last_rx_ring && n_free_bufs)
-    {
-      int r = 0;
-      u32 cur_slot_index;
-      ring = NETMAP_RXRING (nif->nifp, cur_ring);
-      r = nm_ring_space (ring);
-
-      if (!r)
-	{
-	  cur_ring++;
-	  continue;
-	}
-
-      if (r > n_free_bufs)
-	r = n_free_bufs;
-
-      cur_slot_index = ring->cur;
-      while (r)
-	{
-	  u32 n_left_to_next;
-	  u32 next0 = next_index;
-	  vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
-
-	  while (r && n_left_to_next)
-	    {
-	      vlib_buffer_t *first_b0 = 0;
-	      u32 offset = 0;
-	      u32 bi0 = 0, first_bi0 = 0, prev_bi0;
-	      u32 next_slot_index = (cur_slot_index + 1) % ring->num_slots;
-	      u32 next2_slot_index = (cur_slot_index + 2) % ring->num_slots;
-	      struct netmap_slot *slot = &ring->slot[cur_slot_index];
-	      u32 data_len = slot->len;
-
-	      /* prefetch 2 slots in advance */
-	      CLIB_PREFETCH (&ring->slot[next2_slot_index],
-			     CLIB_CACHE_LINE_BYTES, LOAD);
-	      /* prefetch start of next packet */
-	      CLIB_PREFETCH (NETMAP_BUF
-			     (ring, ring->slot[next_slot_index].buf_idx),
-			     CLIB_CACHE_LINE_BYTES, LOAD);
-
-	      while (data_len && n_free_bufs)
-		{
-		  vlib_buffer_t *b0;
-		  /* grab free buffer */
-		  u32 last_empty_buffer =
-		    vec_len (nm->rx_buffers[thread_index]) - 1;
-		  prev_bi0 = bi0;
-		  bi0 = nm->rx_buffers[thread_index][last_empty_buffer];
-		  b0 = vlib_get_buffer (vm, bi0);
-		  _vec_len (nm->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;
-		  b0->current_data = 0;
-		  clib_memcpy_fast (vlib_buffer_get_current (b0),
-				    (u8 *) NETMAP_BUF (ring, slot->buf_idx) +
-				    offset, bytes_to_copy);
-
-		  /* fill buffer header */
-		  b0->current_length = bytes_to_copy;
-
-		  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] =
-			nif->sw_if_index;
-		      vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0;
-		      first_bi0 = bi0;
-		      first_b0 = vlib_get_buffer (vm, first_bi0);
-		    }
-		  else
-		    buffer_add_to_chain (vm, bi0, first_bi0, prev_bi0);
-
-		  offset += bytes_to_copy;
-		  data_len -= bytes_to_copy;
-		}
-
-	      /* trace */
-	      VLIB_BUFFER_TRACE_TRAJECTORY_INIT (first_b0);
-	      if (PREDICT_FALSE (n_trace > 0))
-		{
-		  if (PREDICT_TRUE (first_b0 != 0))
-		    {
-		      netmap_input_trace_t *tr;
-		      vlib_trace_buffer (vm, node, next0, first_b0,
-					 /* follow_chain */ 0);
-		      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 = nif->hw_if_index;
-		      memcpy (&tr->slot, slot, sizeof (struct netmap_slot));
-		    }
-		}
-
-	      /* redirect if feature path enabled */
-	      vnet_feature_start_device_input_x1 (nif->sw_if_index, &next0,
-						  first_b0);
-
-	      /* 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 */
-	      n_rx_packets++;
-	      n_rx_bytes += slot->len;
-	      to_next[0] = first_bi0;
-	      to_next += 1;
-	      n_left_to_next--;
-	      cur_slot_index = next_slot_index;
-
-	      r--;
-	    }
-	  vlib_put_next_frame (vm, node, next_index, n_left_to_next);
-	}
-      ring->head = ring->cur = cur_slot_index;
-      cur_ring++;
-    }
-
-  if (n_rx_packets)
-    ioctl (nif->fd, NIOCRXSYNC, NULL);
-
-  vlib_increment_combined_counter
-    (vnet_get_main ()->interface_main.combined_sw_if_counters
-     + VNET_INTERFACE_COUNTER_RX,
-     vlib_get_thread_index (), nif->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 (netmap_input_node) (vlib_main_t * vm,
-				  vlib_node_runtime_t * node,
-				  vlib_frame_t * frame)
-{
-  int i;
-  u32 n_rx_packets = 0;
-  u32 thread_index = vm->thread_index;
-  netmap_main_t *nm = &netmap_main;
-  netmap_if_t *nmi;
-
-  for (i = 0; i < vec_len (nm->interfaces); i++)
-    {
-      nmi = vec_elt_at_index (nm->interfaces, i);
-      if (nmi->is_admin_up &&
-	  (i % nm->input_cpu_count) ==
-	  (thread_index - nm->input_cpu_first_index))
-	n_rx_packets += netmap_device_input_fn (vm, node, frame, nmi);
-    }
-
-  return n_rx_packets;
-}
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (netmap_input_node) = {
-  .name = "netmap-input",
-  .sibling_of = "device-input",
-  .flags = VLIB_NODE_FLAG_TRACE_SUPPORTED,
-  .format_trace = format_netmap_input_trace,
-  .type = VLIB_NODE_TYPE_INPUT,
-  /* default state is INTERRUPT mode, switch to POLLING if worker threads are enabled */
-  .state = VLIB_NODE_STATE_INTERRUPT,
-  .n_errors = NETMAP_INPUT_N_ERROR,
-  .error_strings = netmap_input_error_strings,
-};
-/* *INDENT-ON* */
-
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vnet/vnet_all_api_h.h b/src/vnet/vnet_all_api_h.h
index a0bf8f72d14..400caf5b513 100644
--- a/src/vnet/vnet_all_api_h.h
+++ b/src/vnet/vnet_all_api_h.h
@@ -35,7 +35,6 @@
 
 #include <vnet/bonding/bond.api.h>
 #include <vnet/devices/af_packet/af_packet.api.h>
-#include <vnet/devices/netmap/netmap.api.h>
 #include <vnet/devices/virtio/vhost_user.api.h>
 #include <vnet/devices/tap/tapv2.api.h>
 #include <vnet/gre/gre.api.h>