1/*-
2 * Copyright 2003-2011 Netlogic Microsystems (Netlogic). All rights
3 * reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in
13 *    the documentation and/or other materials provided with the
14 *    distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY Netlogic Microsystems ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
26 * THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * NETLOGIC_BSD
29 * $FreeBSD: releng/10.3/sys/mips/nlm/msgring.h 233545 2012-03-27 14:05:12Z jchandra $
30 */
31
32#ifndef _NLM_MSGRING_H
33#define	_NLM_MSGRING_H
34#define	CMS_DEFAULT_CREDIT	50
35/*
36 * packets are sent to VC 0 of a thread
37 * freebacks are sent to VC 3 of a thread
38 */
39#define	XLPGE_RX_VC		0
40#define	XLPGE_FB_VC		3
41
42extern uint32_t xlp_msg_thread_mask;
43
44struct nlm_fmn_msg;
45typedef void (*msgring_handler)(int, int, int, int, struct nlm_fmn_msg *, void *);
46
47int register_msgring_handler(int startb, int endb, msgring_handler action,
48		                    void *arg);
49int xlp_handle_msg_vc(u_int vcmask, int max_msgs);
50void xlp_msgring_cpu_init(int, int, int);
51void xlp_cms_enable_intr(int , int , int , int);
52#endif /* _NLM_MSGRING_H */
53