dev: initial set of APIs
Type: improvement
Change-Id: I9ecbf705d460a1744f36c7005b08097dc58d9522
Signed-off-by: Damjan Marion <damarion@cisco.com>
diff --git a/src/vnet/dev/dev_api.c b/src/vnet/dev/dev_api.c
new file mode 100644
index 0000000..4161c32
--- /dev/null
+++ b/src/vnet/dev/dev_api.c
@@ -0,0 +1,191 @@
+/* SPDX-License-Identifier: Apache-2.0
+ * Copyright (c) 2023 Cisco Systems, Inc.
+ */
+
+#include <vnet/vnet.h>
+#include <vnet/dev/dev.h>
+#include <vnet/dev/api.h>
+
+#include <vlibapi/api.h>
+#include <vlibmemory/api.h>
+
+/* define message IDs */
+#include <dev/dev.api_enum.h>
+#include <dev/dev.api_types.h>
+
+static u16 vnet_dev_api_msg_id_base;
+
+#define REPLY_MSG_ID_BASE (vnet_dev_api_msg_id_base)
+#include <vlibapi/api_helper_macros.h>
+
+#define _(b, n, d) \
+ STATIC_ASSERT ((int) VL_API_DEV_FLAG_##n == (int) VNET_DEV_F_##n, "");
+foreach_vnet_dev_flag;
+#undef _
+
+#define _(b, n, d) \
+ STATIC_ASSERT ((int) VL_API_DEV_PORT_FLAG_##n == (int) VNET_DEV_PORT_F_##n, \
+ "");
+foreach_vnet_dev_port_flag;
+#undef _
+
+static void
+vl_api_dev_attach_t_handler (vl_api_dev_attach_t *mp)
+{
+ vlib_main_t *vm = vlib_get_main ();
+ vl_api_dev_attach_reply_t *rmp;
+ vnet_dev_api_attach_args_t a = {};
+ vnet_dev_rv_t rv;
+ u8 *error_string = 0;
+
+ STATIC_ASSERT (sizeof (mp->device_id) == sizeof (a.device_id), "");
+ STATIC_ASSERT (sizeof (mp->driver_name) == sizeof (a.driver_name), "");
+ STATIC_ASSERT (sizeof (mp->flags) == sizeof (a.flags), "");
+
+ a.flags.n = mp->flags;
+ strncpy (a.device_id, (char *) mp->device_id, sizeof (a.device_id));
+ strncpy (a.driver_name, (char *) mp->driver_name, sizeof (a.driver_name));
+ vec_add (a.args, mp->args.buf, mp->args.length);
+
+ rv = vnet_dev_api_attach (vm, &a);
+
+ if (rv != VNET_DEV_OK)
+ error_string = format (0, "%U", format_vnet_dev_rv, rv);
+
+ vec_free (a.args);
+
+ REPLY_MACRO3 (VL_API_DEV_ATTACH_REPLY, vec_len (error_string), ({
+ rmp->retval = rv;
+ if (error_string)
+ {
+ rmp->dev_index = ~0;
+ vl_api_vec_to_api_string (error_string,
+ &rmp->error_string);
+ }
+ else
+ rmp->dev_index = a.dev_index;
+ }));
+
+ vec_free (a.args);
+ vec_free (error_string);
+}
+
+static void
+vl_api_dev_detach_t_handler (vl_api_dev_detach_t *mp)
+{
+ vlib_main_t *vm = vlib_get_main ();
+ vl_api_dev_detach_reply_t *rmp;
+ vnet_dev_api_detach_args_t a = {};
+ vnet_dev_rv_t rv;
+ u8 *error_string = 0;
+
+ a.dev_index = mp->dev_index;
+
+ rv = vnet_dev_api_detach (vm, &a);
+
+ if (rv != VNET_DEV_OK)
+ error_string = format (0, "%U", format_vnet_dev_rv, rv);
+
+ REPLY_MACRO3 (VL_API_DEV_DETACH_REPLY, vec_len (error_string), ({
+ rmp->retval = rv;
+ if (error_string)
+ vl_api_vec_to_api_string (error_string,
+ &rmp->error_string);
+ }));
+
+ vec_free (error_string);
+}
+
+static void
+vl_api_dev_create_port_if_t_handler (vl_api_dev_create_port_if_t *mp)
+{
+ vlib_main_t *vm = vlib_get_main ();
+ vl_api_dev_create_port_if_reply_t *rmp;
+ vnet_dev_api_create_port_if_args_t a = {};
+ vnet_dev_rv_t rv;
+ u8 *error_string = 0;
+
+ STATIC_ASSERT (sizeof (mp->intf_name) == sizeof (a.intf_name), "");
+ STATIC_ASSERT (sizeof (mp->flags) == sizeof (a.flags), "");
+
+ a.flags.n = mp->flags;
+#define _(n) a.n = mp->n;
+ _ (dev_index)
+ _ (port_id)
+ _ (num_rx_queues)
+ _ (num_tx_queues)
+ _ (rx_queue_size)
+ _ (tx_queue_size)
+#undef _
+
+ strncpy (a.intf_name, (char *) mp->intf_name, sizeof (a.intf_name));
+ vec_add (a.args, mp->args.buf, mp->args.length);
+
+ rv = vnet_dev_api_create_port_if (vm, &a);
+
+ if (rv != VNET_DEV_OK)
+ error_string = format (0, "%U", format_vnet_dev_rv, rv);
+
+ vec_free (a.args);
+
+ REPLY_MACRO3 (VL_API_DEV_CREATE_PORT_IF_REPLY, vec_len (error_string), ({
+ rmp->retval = rv;
+ if (error_string)
+ {
+ rmp->sw_if_index = ~0;
+ vl_api_vec_to_api_string (error_string,
+ &rmp->error_string);
+ }
+ else
+ rmp->sw_if_index = a.sw_if_index;
+ }));
+
+ vec_free (a.args);
+ vec_free (error_string);
+}
+
+static void
+vl_api_dev_remove_port_if_t_handler (vl_api_dev_remove_port_if_t *mp)
+{
+ vlib_main_t *vm = vlib_get_main ();
+ vl_api_dev_remove_port_if_reply_t *rmp;
+ vnet_dev_api_remove_port_if_args_t a = {};
+ vnet_dev_rv_t rv;
+ u8 *error_string = 0;
+
+ a.sw_if_index = mp->sw_if_index;
+
+ rv = vnet_dev_api_remove_port_if (vm, &a);
+
+ if (rv != VNET_DEV_OK)
+ error_string = format (0, "%U", format_vnet_dev_rv, rv);
+
+ REPLY_MACRO3 (VL_API_DEV_REMOVE_PORT_IF_REPLY, vec_len (error_string), ({
+ rmp->retval = rv;
+ if (error_string)
+ vl_api_vec_to_api_string (error_string,
+ &rmp->error_string);
+ }));
+
+ vec_free (error_string);
+}
+
+/* set tup the API message handling tables */
+
+#include <dev/dev.api.c>
+
+static clib_error_t *
+vnet_dev_api_hookup (vlib_main_t *vm)
+{
+ api_main_t *am = vlibapi_get_main ();
+
+ /* ask for a correctly-sized block of API message decode slots */
+ vnet_dev_api_msg_id_base = setup_message_id_table ();
+
+ vl_api_set_msg_thread_safe (am, vnet_dev_api_msg_id_base + VL_API_DEV_ATTACH,
+ 1);
+
+ return 0;
+}
+
+VLIB_API_INIT_FUNCTION (vnet_dev_api_hookup);