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0ea522416b
This patch eliminates an unneeded parameter when creating a low-level TIPC port object. Instead of returning both the pointer to the port structure and the port's reference ID, it now returns only the pointer since the port structure contains the reference ID as one of its fields. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
104 lines
3.6 KiB
C
104 lines
3.6 KiB
C
/*
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* include/net/tipc/tipc_port.h: Include file for privileged access to TIPC ports
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*
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* Copyright (c) 1994-2007, Ericsson AB
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* Copyright (c) 2005-2008, Wind River Systems
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the names of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _NET_TIPC_PORT_H_
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#define _NET_TIPC_PORT_H_
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#ifdef __KERNEL__
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#include <linux/tipc.h>
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#include <linux/skbuff.h>
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#include <net/tipc/tipc_msg.h>
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#define TIPC_FLOW_CONTROL_WIN 512
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/**
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* struct tipc_port - native TIPC port info available to privileged users
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* @usr_handle: pointer to additional user-defined information about port
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* @lock: pointer to spinlock for controlling access to port
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* @connected: non-zero if port is currently connected to a peer port
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* @conn_type: TIPC type used when connection was established
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* @conn_instance: TIPC instance used when connection was established
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* @conn_unacked: number of unacknowledged messages received from peer port
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* @published: non-zero if port has one or more associated names
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* @congested: non-zero if cannot send because of link or port congestion
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* @max_pkt: maximum packet size "hint" used when building messages sent by port
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* @ref: unique reference to port in TIPC object registry
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* @phdr: preformatted message header used when sending messages
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*/
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struct tipc_port {
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void *usr_handle;
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spinlock_t *lock;
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int connected;
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u32 conn_type;
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u32 conn_instance;
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u32 conn_unacked;
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int published;
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u32 congested;
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u32 max_pkt;
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u32 ref;
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struct tipc_msg phdr;
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};
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struct tipc_port *tipc_createport_raw(void *usr_handle,
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u32 (*dispatcher)(struct tipc_port *, struct sk_buff *),
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void (*wakeup)(struct tipc_port *),
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const u32 importance);
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int tipc_reject_msg(struct sk_buff *buf, u32 err);
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int tipc_send_buf_fast(struct sk_buff *buf, u32 destnode);
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void tipc_acknowledge(u32 port_ref,u32 ack);
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struct tipc_port *tipc_get_port(const u32 ref);
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void *tipc_get_handle(const u32 ref);
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/*
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* The following routines require that the port be locked on entry
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*/
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int tipc_disconnect_port(struct tipc_port *tp_ptr);
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#endif
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#endif
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