1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright 2003-2011 Netlogic Microsystems (Netlogic). All rights
5 * reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are
9 * met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in
15 *    the documentation and/or other materials provided with the
16 *    distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY Netlogic Microsystems ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE
22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
28 * THE POSSIBILITY OF SUCH DAMAGE.
29 *
30 * NETLOGIC_BSD
31 * $FreeBSD$
32 */
33
34#ifndef _NLM_MSGRING_H
35#define	_NLM_MSGRING_H
36#define	CMS_DEFAULT_CREDIT	50
37/*
38 * packets are sent to VC 0 of a thread
39 * freebacks are sent to VC 3 of a thread
40 */
41#define	XLPGE_RX_VC		0
42#define	XLPGE_FB_VC		3
43
44extern uint32_t xlp_msg_thread_mask;
45
46struct nlm_fmn_msg;
47typedef void (*msgring_handler)(int, int, int, int, struct nlm_fmn_msg *, void *);
48
49int register_msgring_handler(int startb, int endb, msgring_handler action,
50		                    void *arg);
51int xlp_handle_msg_vc(u_int vcmask, int max_msgs);
52void xlp_msgring_cpu_init(int, int, int);
53void xlp_cms_enable_intr(int , int , int , int);
54#endif /* _NLM_MSGRING_H */
55