xref: /linux/drivers/infiniband/hw/ocrdma/ocrdma_ah.h (revision ec63e2a4897075e427c121d863bd89c44578094f)
1 /* This file is part of the Emulex RoCE Device Driver for
2  * RoCE (RDMA over Converged Ethernet) adapters.
3  * Copyright (C) 2012-2015 Emulex. All rights reserved.
4  * EMULEX and SLI are trademarks of Emulex.
5  * www.emulex.com
6  *
7  * This software is available to you under a choice of one of two licenses.
8  * You may choose to be licensed under the terms of the GNU General Public
9  * License (GPL) Version 2, available from the file COPYING in the main
10  * directory of this source tree, or the BSD license below:
11  *
12  * Redistribution and use in source and binary forms, with or without
13  * modification, are permitted provided that the following conditions
14  * are met:
15  *
16  * - Redistributions of source code must retain the above copyright notice,
17  *   this list of conditions and the following disclaimer.
18  *
19  * - Redistributions in binary form must reproduce the above copyright
20  *   notice, this list of conditions and the following disclaimer in
21  *   the documentation and/or other materials provided with the distribution.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
24  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,THE
25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
27  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
28  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
29  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
30  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
31  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
32  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
33  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34  *
35  * Contact Information:
36  * linux-drivers@emulex.com
37  *
38  * Emulex
39  * 3333 Susan Street
40  * Costa Mesa, CA 92626
41  */
42 
43 #ifndef __OCRDMA_AH_H__
44 #define __OCRDMA_AH_H__
45 
46 enum {
47 	OCRDMA_AH_ID_MASK		= 0x3FF,
48 	OCRDMA_AH_VLAN_VALID_MASK	= 0x01,
49 	OCRDMA_AH_VLAN_VALID_SHIFT	= 0x1F,
50 	OCRDMA_AH_L3_TYPE_MASK		= 0x03,
51 	OCRDMA_AH_L3_TYPE_SHIFT		= 0x1D /* 29 bits */
52 };
53 
54 struct ib_ah *ocrdma_create_ah(struct ib_pd *pd, struct rdma_ah_attr *ah_attr,
55 			       u32 flags, struct ib_udata *udata);
56 int ocrdma_destroy_ah(struct ib_ah *ah, u32 flags);
57 int ocrdma_query_ah(struct ib_ah *ah, struct rdma_ah_attr *ah_attr);
58 
59 int ocrdma_process_mad(struct ib_device *,
60 		       int process_mad_flags,
61 		       u8 port_num,
62 		       const struct ib_wc *in_wc,
63 		       const struct ib_grh *in_grh,
64 		       const struct ib_mad_hdr *in, size_t in_mad_size,
65 		       struct ib_mad_hdr *out, size_t *out_mad_size,
66 		       u16 *out_mad_pkey_index);
67 #endif				/* __OCRDMA_AH_H__ */
68