--- /dev/null
+/*
+ *------------------------------------------------------------------
+ * 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 <inttypes.h>
+
+#include <vlib/vlib.h>
+#include <vlib/unix/unix.h>
+#include <vnet/ethernet/ethernet.h>
+#include <linux/virtio_net.h>
+#include <linux/vhost.h>
+#include <vnet/devices/virtio/virtio.h>
+#include <vnet/devices/virtio/tap.h>
+
+static clib_error_t *
+tap_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;
+ int rv;
+ tap_create_if_args_t args = { 0 };
+
+ /* Get a line of input. */
+ if (!unformat_user (input, unformat_line_input, line_input))
+ return clib_error_return (0, "Missing name <interface>");
+
+ while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (line_input, "name %s", &args.name))
+ ;
+ else if (unformat (line_input, "host-ns %s", &args.net_ns))
+ ;
+ else if (unformat (line_input, "rx-ring-size %d", &args.rx_ring_sz))
+ ;
+ else if (unformat (line_input, "tx-ring-size %d", &args.tx_ring_sz))
+ ;
+ else if (unformat (line_input, "hw-addr %U",
+ unformat_ethernet_address, args.hw_addr))
+ args.hw_addr_set = 1;
+ else
+ return clib_error_return (0, "unknown input `%U'",
+ format_unformat_error, input);
+ }
+ unformat_free (line_input);
+
+ rv = tap_create_if (vm, &args);
+
+ vec_free (args.name);
+
+ if (rv == VNET_API_ERROR_SYSCALL_ERROR_1)
+ return clib_error_return_unix (0, "open '/dev/vhost-net'");
+ else if (rv == VNET_API_ERROR_SYSCALL_ERROR_2)
+ return clib_error_return_unix (0, "open '/dev/net/tun'");
+ else if (rv == VNET_API_ERROR_UNSUPPORTED)
+ return clib_error_return (0, "vhost-net backend doesn't support needed"
+ " features");
+ else if (rv == VNET_API_ERROR_NAMESPACE_CREATE)
+ return clib_error_return (0, "failed to create netlink namespace");
+ else if (rv == VNET_API_ERROR_VIRTIO_INIT)
+ return clib_error_return (0, "failed to init virtio ring");
+ else if (rv == VNET_API_ERROR_INVALID_REGISTRATION)
+ return clib_error_return (0, "failed to register interface");
+ else if (rv != 0)
+ return clib_error_return (0, "error on creating tap interface");
+
+ return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (tap_create_command, static) = {
+ .path = "create tap",
+ .short_help = "create tap {name <if-name>} [hw-addr <mac-address>]"
+ "[rx-ring-size <size>] [tx-ring-size <size>] [host-ns <netns>]",
+ .function = tap_create_command_fn,
+};
+/* *INDENT-ON* */
+
+static clib_error_t *
+tap_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;
+ u32 sw_if_index = ~0;
+ vnet_main_t *vnm = vnet_get_main ();
+ int rv;
+
+ /* Get a line of input. */
+ if (!unformat_user (input, unformat_line_input, line_input))
+ return clib_error_return (0, "Missing <interface>");
+
+ while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (line_input, "sw_if_index %d", &sw_if_index))
+ ;
+ else if (unformat (line_input, "%U", unformat_vnet_sw_interface,
+ vnm, &sw_if_index))
+ ;
+ else
+ return clib_error_return (0, "unknown input `%U'",
+ format_unformat_error, input);
+ }
+ unformat_free (line_input);
+
+ if (sw_if_index == ~0)
+ return clib_error_return (0,
+ "please specify interface name or sw_if_index");
+
+ rv = tap_delete_if (vm, sw_if_index);
+ if (rv == VNET_API_ERROR_INVALID_SW_IF_INDEX)
+ return clib_error_return (0, "not a tap interface");
+ else if (rv != 0)
+ return clib_error_return (0, "error on deleting tap interface");
+
+ return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (tap_delete__command, static) =
+{
+ .path = "delete tap",
+ .short_help = "delete tap {<interface> | sw_if_index <sw_idx>}",
+ .function = tap_delete_command_fn,
+};
+/* *INDENT-ON* */
+
+static clib_error_t *
+tap_show_command_fn (vlib_main_t * vm, unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ virtio_main_t *mm = &virtio_main;
+ virtio_if_t *vif;
+ vnet_main_t *vnm = vnet_get_main ();
+ int show_descr = 0;
+ clib_error_t *error = 0;
+ u32 hw_if_index, *hw_if_indices = 0;
+ virtio_vring_t *vring;
+ int i, j;
+ struct feat_struct
+ {
+ u8 bit;
+ char *str;
+ };
+ struct feat_struct *feat_entry;
+
+ static struct feat_struct feat_array[] = {
+#define _(s,b) { .str = #s, .bit = b, },
+ foreach_virtio_net_features
+#undef _
+ {.str = NULL}
+ };
+
+ struct feat_struct *flag_entry;
+ static struct feat_struct flags_array[] = {
+#define _(b,e,s) { .bit = b, .str = s, },
+ foreach_virtio_if_flag
+#undef _
+ {.str = NULL}
+ };
+
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat
+ (input, "%U", unformat_vnet_hw_interface, vnm, &hw_if_index))
+ vec_add1 (hw_if_indices, hw_if_index);
+ else if (unformat (input, "descriptors"))
+ show_descr = 1;
+ else
+ {
+ error = clib_error_return (0, "unknown input `%U'",
+ format_unformat_error, input);
+ goto done;
+ }
+ }
+
+ if (vec_len (hw_if_indices) == 0)
+ {
+ /* *INDENT-OFF* */
+ pool_foreach (vif, mm->interfaces,
+ vec_add1 (hw_if_indices, vif->hw_if_index);
+ );
+ /* *INDENT-ON* */
+ }
+
+ for (hw_if_index = 0; hw_if_index < vec_len (hw_if_indices); hw_if_index++)
+ {
+ vnet_hw_interface_t *hi =
+ vnet_get_hw_interface (vnm, hw_if_indices[hw_if_index]);
+ vif = pool_elt_at_index (mm->interfaces, hi->dev_instance);
+ vlib_cli_output (vm, "interface %U", format_vnet_sw_if_index_name,
+ vnm, vif->sw_if_index);
+ if (vif->name)
+ vlib_cli_output (vm, " name \"%s\"", vif->name);
+ if (vif->net_ns)
+ vlib_cli_output (vm, " host-ns \"%s\"", vif->net_ns);
+ vlib_cli_output (vm, " flags 0x%x", vif->flags);
+ flag_entry = (struct feat_struct *) &flags_array;
+ while (flag_entry->str)
+ {
+ if (vif->flags & (1ULL << flag_entry->bit))
+ vlib_cli_output (vm, " %s (%d)", flag_entry->str,
+ flag_entry->bit);
+ flag_entry++;
+ }
+ vlib_cli_output (vm, " fd %d", vif->fd);
+ vlib_cli_output (vm, " tap-fd %d", vif->tap_fd);
+ vlib_cli_output (vm, " features 0x%lx", vif->features);
+ feat_entry = (struct feat_struct *) &feat_array;
+ while (feat_entry->str)
+ {
+ if (vif->features & (1ULL << feat_entry->bit))
+ vlib_cli_output (vm, " %s (%d)", feat_entry->str,
+ feat_entry->bit);
+ feat_entry++;
+ }
+ vlib_cli_output (vm, " remote-features 0x%lx", vif->remote_features);
+ feat_entry = (struct feat_struct *) &feat_array;
+ while (feat_entry->str)
+ {
+ if (vif->remote_features & (1ULL << feat_entry->bit))
+ vlib_cli_output (vm, " %s (%d)", feat_entry->str,
+ feat_entry->bit);
+ feat_entry++;
+ }
+ vec_foreach_index (i, vif->vrings)
+ {
+ // RX = 0, TX = 1
+ vring = vec_elt_at_index (vif->vrings, i);
+ vlib_cli_output (vm, " Virtqueue (%s)", (i & 1) ? "TX" : "RX");
+ vlib_cli_output (vm, " qsz %d, last_used_idx %d, desc_in_use %d",
+ vring->size, vring->last_used_idx,
+ vring->desc_in_use);
+ vlib_cli_output (vm,
+ " avail.flags 0x%x avail.idx %d used.flags 0x%x used.idx %d",
+ vring->avail->flags, vring->avail->idx,
+ vring->used->flags, vring->used->idx);
+ vlib_cli_output (vm, " kickfd %d, callfd %d", vring->kick_fd,
+ vring->call_fd);
+ if (show_descr)
+ {
+ vlib_cli_output (vm, "\n descriptor table:\n");
+ vlib_cli_output (vm,
+ " id addr len flags next user_addr\n");
+ vlib_cli_output (vm,
+ " ===== ================== ===== ====== ===== ==================\n");
+ vring = vif->vrings;
+ for (j = 0; j < vring->size; j++)
+ {
+ struct vring_desc *desc = &vring->desc[j];
+ vlib_cli_output (vm,
+ " %-5d 0x%016lx %-5d 0x%04x %-5d 0x%016lx\n",
+ j, desc->addr,
+ desc->len,
+ desc->flags, desc->next, desc->addr);
+ }
+ }
+ }
+ }
+done:
+ vec_free (hw_if_indices);
+ return error;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (tap_show_command, static) = {
+ .path = "show tap",
+ .short_help = "show tap {<interface>] [descriptors]",
+ .function = tap_show_command_fn,
+};
+/* *INDENT-ON* */
+
+clib_error_t *
+tap_cli_init (vlib_main_t * vm)
+{
+ return 0;
+}
+
+VLIB_INIT_FUNCTION (tap_cli_init);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
Code Review / vpp.git / blobdiff