Initial commit of vpp code.
Change-Id: Ib246f1fbfce93274020ee93ce461e3d8bd8b9f17
Signed-off-by: Ed Warnicke <eaw@cisco.com>
diff --git a/vlib-api/vlibmemory/api.h b/vlib-api/vlibmemory/api.h
new file mode 100644
index 0000000..7f2f6fa
--- /dev/null
+++ b/vlib-api/vlibmemory/api.h
@@ -0,0 +1,139 @@
+/*
+ *------------------------------------------------------------------
+ * api.h
+ *
+ * Copyright (c) 2009 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.
+ *------------------------------------------------------------------
+ */
+
+#ifndef included_vlibmemory_api_h
+#define included_vlibmemory_api_h
+
+#include <vppinfra/error.h>
+#include <svm.h>
+#include <vlib/vlib.h>
+#include <vlibmemory/unix_shared_memory_queue.h>
+#include <vlib/unix/unix.h>
+#include <vlibapi/api.h>
+
+/* Allocated in shared memory */
+
+/*
+ * Ring-allocation scheme for client API messages
+ *
+ * Only one proc/thread has control of a given message buffer.
+ * To free a buffer allocated from one of these rings, we clear
+ * a field in the buffer (header), and leave.
+ *
+ * No locks, no hits, no errors...
+ */
+typedef struct ring_alloc_ {
+ unix_shared_memory_queue_t *rp;
+ u16 size;
+ u16 nitems;
+ u32 hits;
+ u32 misses;
+} ring_alloc_t;
+
+/*
+ * Initializers for the (shared-memory) rings
+ * _(size, n). Note: each msg has an 8 byte header.
+ * Might want to change that to an index sometime.
+ */
+#define foreach_vl_aring_size \
+_(64+8, 1024) \
+_(256+8, 128) \
+_(1024+8, 64)
+
+#define foreach_clnt_aring_size \
+_(1024+8, 1024) \
+_(2048+8, 128) \
+_(4096+8, 8)
+
+typedef struct vl_shmem_hdr_ {
+ int version;
+
+ /* getpid () for the VLIB client process */
+ volatile int vl_pid;
+
+ /* Client sends VLIB msgs here. */
+ unix_shared_memory_queue_t *vl_input_queue;
+
+ /* Vector of rings; one for each size. */
+
+ /* VLIB allocates buffers to send msgs to clients here. */
+ ring_alloc_t *vl_rings;
+
+ /* Clients allocate buffer to send msgs to VLIB here. */
+ ring_alloc_t *client_rings;
+
+ /* Number of detected application restarts */
+ u32 application_restarts;
+
+ /* Number of messages reclaimed during application restart */
+ u32 restart_reclaims;
+
+} vl_shmem_hdr_t;
+
+#define VL_SHM_VERSION 2
+
+#define VL_API_EPOCH_MASK 0xFF
+#define VL_API_EPOCH_SHIFT 8
+
+static inline u32 vl_msg_api_handle_get_epoch (u32 index)
+{
+ return (index & VL_API_EPOCH_MASK);
+}
+static inline u32 vl_msg_api_handle_get_index (u32 index)
+{
+ return (index >> VL_API_EPOCH_SHIFT);
+}
+
+static inline u32 vl_msg_api_handle_from_index_and_epoch (u32 index, u32 epoch)
+{
+ u32 handle;
+ ASSERT (index < 0x00FFFFFF);
+
+ handle = (index<<VL_API_EPOCH_SHIFT) | (epoch & VL_API_EPOCH_MASK);
+ return handle;
+}
+
+
+
+void *vl_msg_api_alloc(int nbytes);
+void *vl_msg_api_alloc_as_if_client (int nbytes);
+void vl_msg_api_free(void *a);
+int vl_map_shmem (char *region_name, int is_vlib);
+void vl_register_mapped_shmem_region(svm_region_t *rp);
+void vl_unmap_shmem (void);
+void vl_msg_api_send_shmem (unix_shared_memory_queue_t *q, u8 *elem);
+void vl_msg_api_send_shmem_nolock (unix_shared_memory_queue_t *q, u8 *elem);
+void vl_msg_api_send (vl_api_registration_t *rp, u8 *elem);
+int vl_client_connect (char *name, int ctx_quota, int input_queue_size);
+void vl_client_disconnect (void);
+unix_shared_memory_queue_t *vl_api_client_index_to_input_queue (u32 index);
+vl_api_registration_t *vl_api_client_index_to_registration (u32 index);
+int vl_client_api_map (char *region_name);
+void vl_client_api_unmap (void);
+void vl_set_memory_region_name (char *name);
+void vl_set_memory_root_path (char *root_path);
+void vl_enable_disable_memory_api (vlib_main_t *vm, int yesno);
+void vl_client_disconnect_from_vlib (void);
+int vl_client_connect_to_vlib(char *svm_name, char *client_name,
+ int rx_queue_size);
+int vl_client_connect_to_vlib_no_rx_pthread (char *svm_name, char *client_name,
+ int rx_queue_size);
+u16 vl_client_get_first_plugin_msg_id (char * plugin_name);
+
+#endif /* included_vlibmemory_api_h */