Eric Lee / smarc-fsl-linux-kernel

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net/vmw_vsock/vmci_transport_notify.h 2.9 KB
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d021c3440   Andy King   VSOCK: Introduce ... 
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  /*
   * 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);
  };
3b22dae38   Julia Lawall   VSOCK: constify v... 
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  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;
d021c3440   Andy King   VSOCK: Introduce ... 
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  #endif /* __VMCI_TRANSPORT_NOTIFY_H__ */