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authorDamjan Marion <damarion@cisco.com>2017-03-22 10:18:13 +0100
committerOle Trøan <otroan@employees.org>2017-03-22 19:52:47 +0000
commiteaabe073515e7722ed546b36f99efc6feea305a1 (patch)
tree7c5cfe203815d8cc8d989de646e5dedcd6bc2f9d /src/plugins/memif/cli.c
parent24d01367c869f968b9e21c0cae4df8c5941fdf16 (diff)
Add memif - packet memory interface for intra-host communication
Change-Id: I94c06b07a39f07ceba87bf3e7fcfc70e43231e8a Signed-off-by: Damjan Marion <damarion@cisco.com> Co-Authored-By: Milan Lenco <Milan.Lenco@pantheon.tech>
Diffstat (limited to 'src/plugins/memif/cli.c')
-rw-r--r--src/plugins/memif/cli.c202
1 files changed, 202 insertions, 0 deletions
diff --git a/src/plugins/memif/cli.c b/src/plugins/memif/cli.c
new file mode 100644
index 00000000000..ef73693b35d
--- /dev/null
+++ b/src/plugins/memif/cli.c
@@ -0,0 +1,202 @@
+/*
+ *------------------------------------------------------------------
+ * 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 <memif/memif.h>
+
+static clib_error_t *
+memif_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 r;
+ u32 ring_size = MEMIF_DEFAULT_RING_SIZE;
+ memif_create_if_args_t args = { 0 };
+ args.buffer_size = MEMIF_DEFAULT_BUFFER_SIZE;
+
+ /* 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, "key 0x%" PRIx64, &args.key))
+ ;
+ else if (unformat (line_input, "socket %s", &args.socket_filename))
+ ;
+ else if (unformat (line_input, "ring-size %u", &ring_size))
+ ;
+ else if (unformat (line_input, "buffer-size %u", &args.buffer_size))
+ ;
+ else if (unformat (line_input, "master"))
+ args.is_master = 1;
+ else if (unformat (line_input, "slave"))
+ args.is_master = 0;
+ 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);
+
+ if (!is_pow2 (ring_size))
+ return clib_error_return (0, "ring size must be power of 2");
+
+ args.log2_ring_size = min_log2 (ring_size);
+
+ r = memif_create_if (vm, &args);
+
+ if (r <= VNET_API_ERROR_SYSCALL_ERROR_1
+ && r >= VNET_API_ERROR_SYSCALL_ERROR_10)
+ return clib_error_return (0, "%s (errno %d)", strerror (errno), errno);
+
+ if (r == VNET_API_ERROR_INVALID_INTERFACE)
+ return clib_error_return (0, "Invalid interface name");
+
+ if (r == VNET_API_ERROR_SUBIF_ALREADY_EXISTS)
+ return clib_error_return (0, "Interface already exists");
+
+ return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (memif_create_command, static) = {
+ .path = "create memif",
+ .short_help = "create memif [key <key>] [socket <path>] "
+ "[ring-size <size>] [buffer-size <size>] [hw-addr <mac-address>] "
+ "<master|slave>",
+ .function = memif_create_command_fn,
+};
+/* *INDENT-ON* */
+
+static clib_error_t *
+memif_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;
+ u64 key = 0;
+ u8 key_defined = 0;
+
+ /* 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, "key 0x%" PRIx64, &key))
+ key_defined = 1;
+ else
+ return clib_error_return (0, "unknown input `%U'",
+ format_unformat_error, input);
+ }
+ unformat_free (line_input);
+
+ if (!key_defined)
+ return clib_error_return (0, "missing key");
+
+ memif_delete_if (vm, key);
+
+ return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (memif_delete_command, static) = {
+ .path = "delete memif",
+ .short_help = "delete memif key <key-value>",
+ .function = memif_delete_command_fn,
+};
+/* *INDENT-ON* */
+
+static clib_error_t *
+memif_show_command_fn (vlib_main_t * vm, unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ memif_main_t *mm = &memif_main;
+ memif_if_t *mif;
+ vnet_main_t *vnm = vnet_get_main ();
+ int i;
+
+ /* *INDENT-OFF* */
+ pool_foreach (mif, mm->interfaces,
+ ({
+ vlib_cli_output (vm, "interface %U", format_vnet_sw_if_index_name,
+ vnm, mif->sw_if_index);
+ vlib_cli_output (vm, " key 0x%" PRIx64 " file %s", mif->key,
+ mif->socket_filename);
+ vlib_cli_output (vm, " listener %d conn-fd %d int-fd %d", mif->listener_index,
+ mif->connection.fd, mif->interrupt_line.fd);
+ vlib_cli_output (vm, " ring-size %u num-c2s-rings %u num-s2c-rings %u buffer_size %u",
+ (1 << mif->log2_ring_size),
+ mif->num_s2m_rings,
+ mif->num_m2s_rings,
+ mif->buffer_size);
+ for (i=0; i < mif->num_s2m_rings; i++)
+ {
+ memif_ring_t * ring = memif_get_ring (mif, MEMIF_RING_S2M, i);
+ if (ring)
+ {
+ vlib_cli_output (vm, " slave-to-master ring %u:", i);
+ vlib_cli_output (vm, " head %u tail %u", ring->head, ring->tail);
+ }
+ }
+ for (i=0; i < mif->num_m2s_rings; i++)
+ {
+ memif_ring_t * ring = memif_get_ring (mif, MEMIF_RING_M2S, i);
+ if (ring)
+ {
+ vlib_cli_output (vm, " master-to-slave ring %u:", i);
+ vlib_cli_output (vm, " head %u tail %u", ring->head, ring->tail);
+ }
+ }
+ }));
+ /* *INDENT-ON* */
+
+ return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (memif_show_command, static) = {
+ .path = "show memif",
+ .short_help = "show memif",
+ .function = memif_show_command_fn,
+};
+/* *INDENT-ON* */
+
+clib_error_t *
+memif_cli_init (vlib_main_t * vm)
+{
+ return 0;
+}
+
+VLIB_INIT_FUNCTION (memif_cli_init);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */