linux/net/vmw_vsock/vmci_transport_notify.h
Thomas Gleixner 685a6bf848 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 321
Based on 1 normalized pattern(s):

  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

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 33 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190530000435.345978407@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:37:05 +02:00

77 lines
2.5 KiB
C

/* SPDX-License-Identifier: GPL-2.0-only */
/*
* VMware vSockets Driver
*
* Copyright (C) 2009-2013 VMware, Inc. All rights reserved.
*/
#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 const struct vmci_transport_notify_ops vmci_transport_notify_pkt_ops;
extern const
struct vmci_transport_notify_ops vmci_transport_notify_pkt_q_state_ops;
#endif /* __VMCI_TRANSPORT_NOTIFY_H__ */