Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / net / vmw_vsock / vmci_transport_notify.h

diff --git a/kernel/net/vmw_vsock/vmci_transport_notify.h b/kernel/net/vmw_vsock/vmci_transport_notify.h
new file mode 100644 (file)
index 0000000..7df7932
--- /dev/null
+++ b/kernel/net/vmw_vsock/vmci_transport_notify.h
@@ -0,0 +1,83 @@
+/*
+ * VMware vSockets Driver
+ *
+ * Copyright (C) 2009-2013 VMware, Inc. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation version 2 and no later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __VMCI_TRANSPORT_NOTIFY_H__
+#define __VMCI_TRANSPORT_NOTIFY_H__
+
+#include <linux/types.h>
+#include <linux/vmw_vmci_defs.h>
+#include <linux/vmw_vmci_api.h>
+#include <linux/vm_sockets.h>
+
+#include "vmci_transport.h"
+
+/* Comment this out to compare with old protocol. */
+#define VSOCK_OPTIMIZATION_WAITING_NOTIFY 1
+#if defined(VSOCK_OPTIMIZATION_WAITING_NOTIFY)
+/* Comment this out to remove flow control for "new" protocol */
+#define VSOCK_OPTIMIZATION_FLOW_CONTROL 1
+#endif
+
+#define VMCI_TRANSPORT_MAX_DGRAM_RESENDS       10
+
+struct vmci_transport_recv_notify_data {
+       u64 consume_head;
+       u64 produce_tail;
+       bool notify_on_block;
+};
+
+struct vmci_transport_send_notify_data {
+       u64 consume_head;
+       u64 produce_tail;
+};
+
+/* Socket notification callbacks. */
+struct vmci_transport_notify_ops {
+       void (*socket_init) (struct sock *sk);
+       void (*socket_destruct) (struct vsock_sock *vsk);
+       int (*poll_in) (struct sock *sk, size_t target,
+                         bool *data_ready_now);
+       int (*poll_out) (struct sock *sk, size_t target,
+                          bool *space_avail_now);
+       void (*handle_notify_pkt) (struct sock *sk,
+                                  struct vmci_transport_packet *pkt,
+                                  bool bottom_half, struct sockaddr_vm *dst,
+                                  struct sockaddr_vm *src,
+                                  bool *pkt_processed);
+       int (*recv_init) (struct sock *sk, size_t target,
+                         struct vmci_transport_recv_notify_data *data);
+       int (*recv_pre_block) (struct sock *sk, size_t target,
+                              struct vmci_transport_recv_notify_data *data);
+       int (*recv_pre_dequeue) (struct sock *sk, size_t target,
+                                struct vmci_transport_recv_notify_data *data);
+       int (*recv_post_dequeue) (struct sock *sk, size_t target,
+                                 ssize_t copied, bool data_read,
+                                 struct vmci_transport_recv_notify_data *data);
+       int (*send_init) (struct sock *sk,
+                         struct vmci_transport_send_notify_data *data);
+       int (*send_pre_block) (struct sock *sk,
+                              struct vmci_transport_send_notify_data *data);
+       int (*send_pre_enqueue) (struct sock *sk,
+                                struct vmci_transport_send_notify_data *data);
+       int (*send_post_enqueue) (struct sock *sk, ssize_t written,
+                                 struct vmci_transport_send_notify_data *data);
+       void (*process_request) (struct sock *sk);
+       void (*process_negotiate) (struct sock *sk);
+};
+
+extern struct vmci_transport_notify_ops vmci_transport_notify_pkt_ops;
+extern struct vmci_transport_notify_ops vmci_transport_notify_pkt_q_state_ops;
+
+#endif /* __VMCI_TRANSPORT_NOTIFY_H__ */