01d83eddc5
Allows the broadcast link to track the node that is requesting a retransmit in a new field dedicated to that purpose. This replaces the existing mechanism that (ab)uses an existing node structure linked list field to do the tracking. Signed-off-by: Allan Stephens <Allan.Stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
106 lines
3.6 KiB
C
106 lines
3.6 KiB
C
/*
|
|
* net/tipc/bcast.h: Include file for TIPC broadcast code
|
|
*
|
|
* Copyright (c) 2003-2006, Ericsson AB
|
|
* Copyright (c) 2005, 2010-2011, Wind River Systems
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the names of the copyright holders nor the names of its
|
|
* contributors may be used to endorse or promote products derived from
|
|
* this software without specific prior written permission.
|
|
*
|
|
* Alternatively, this software may be distributed under the terms of the
|
|
* GNU General Public License ("GPL") version 2 as published by the Free
|
|
* Software Foundation.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef _TIPC_BCAST_H
|
|
#define _TIPC_BCAST_H
|
|
|
|
#define MAX_NODES 4096
|
|
#define WSIZE 32
|
|
|
|
/**
|
|
* struct tipc_node_map - set of node identifiers
|
|
* @count: # of nodes in set
|
|
* @map: bitmap of node identifiers that are in the set
|
|
*/
|
|
|
|
struct tipc_node_map {
|
|
u32 count;
|
|
u32 map[MAX_NODES / WSIZE];
|
|
};
|
|
|
|
extern struct tipc_node_map tipc_bcast_nmap;
|
|
|
|
#define PLSIZE 32
|
|
|
|
/**
|
|
* struct port_list - set of node local destination ports
|
|
* @count: # of ports in set (only valid for first entry in list)
|
|
* @next: pointer to next entry in list
|
|
* @ports: array of port references
|
|
*/
|
|
|
|
struct port_list {
|
|
int count;
|
|
struct port_list *next;
|
|
u32 ports[PLSIZE];
|
|
};
|
|
|
|
|
|
struct tipc_node;
|
|
|
|
extern const char tipc_bclink_name[];
|
|
|
|
void tipc_nmap_add(struct tipc_node_map *nm_ptr, u32 node);
|
|
void tipc_nmap_remove(struct tipc_node_map *nm_ptr, u32 node);
|
|
|
|
/**
|
|
* tipc_nmap_equal - test for equality of node maps
|
|
*/
|
|
|
|
static inline int tipc_nmap_equal(struct tipc_node_map *nm_a, struct tipc_node_map *nm_b)
|
|
{
|
|
return !memcmp(nm_a, nm_b, sizeof(*nm_a));
|
|
}
|
|
|
|
void tipc_port_list_add(struct port_list *pl_ptr, u32 port);
|
|
void tipc_port_list_free(struct port_list *pl_ptr);
|
|
|
|
int tipc_bclink_init(void);
|
|
void tipc_bclink_stop(void);
|
|
struct tipc_node *tipc_bclink_retransmit_to(void);
|
|
void tipc_bclink_acknowledge(struct tipc_node *n_ptr, u32 acked);
|
|
int tipc_bclink_send_msg(struct sk_buff *buf);
|
|
void tipc_bclink_recv_pkt(struct sk_buff *buf);
|
|
u32 tipc_bclink_get_last_sent(void);
|
|
u32 tipc_bclink_acks_missing(struct tipc_node *n_ptr);
|
|
void tipc_bclink_check_gap(struct tipc_node *n_ptr, u32 seqno);
|
|
int tipc_bclink_stats(char *stats_buf, const u32 buf_size);
|
|
int tipc_bclink_reset_stats(void);
|
|
int tipc_bclink_set_queue_limits(u32 limit);
|
|
void tipc_bcbearer_sort(void);
|
|
void tipc_bcbearer_push(void);
|
|
|
|
#endif
|