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Roland Dreierc04bc3d2005-08-19 10:33:35 -07001/*
2 * Copyright (c) 2005 Cisco Systems. All rights reserved.
3 *
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
9 *
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 *
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * SOFTWARE.
31 *
32 * $Id: mthca_wqe.h 3047 2005-08-10 03:59:35Z roland $
33 */
34
35#ifndef MTHCA_WQE_H
36#define MTHCA_WQE_H
37
38#include <linux/types.h>
39
40enum {
Eli Cohen680b5752008-04-16 21:01:11 -070041 MTHCA_NEXT_DBD = 1 << 7,
42 MTHCA_NEXT_FENCE = 1 << 6,
43 MTHCA_NEXT_CQ_UPDATE = 1 << 3,
44 MTHCA_NEXT_EVENT_GEN = 1 << 2,
45 MTHCA_NEXT_SOLICIT = 1 << 1,
46 MTHCA_NEXT_IP_CSUM = 1 << 4,
47 MTHCA_NEXT_TCP_UDP_CSUM = 1 << 5,
Roland Dreierc04bc3d2005-08-19 10:33:35 -070048
Eli Cohen680b5752008-04-16 21:01:11 -070049 MTHCA_MLX_VL15 = 1 << 17,
50 MTHCA_MLX_SLR = 1 << 16
Roland Dreierc04bc3d2005-08-19 10:33:35 -070051};
52
53enum {
Michael S. Tsirkinae57e242005-11-09 14:59:57 -080054 MTHCA_INVAL_LKEY = 0x100,
Michael S. Tsirkine0ae9ec2005-11-29 11:33:46 -080055 MTHCA_TAVOR_MAX_WQES_PER_RECV_DB = 256,
56 MTHCA_ARBEL_MAX_WQES_PER_SEND_DB = 255
Roland Dreierc04bc3d2005-08-19 10:33:35 -070057};
58
59struct mthca_next_seg {
60 __be32 nda_op; /* [31:6] next WQE [4:0] next opcode */
61 __be32 ee_nds; /* [31:8] next EE [7] DBD [6] F [5:0] next WQE size */
62 __be32 flags; /* [3] CQ [2] Event [1] Solicit */
63 __be32 imm; /* immediate data */
64};
65
66struct mthca_tavor_ud_seg {
67 u32 reserved1;
68 __be32 lkey;
69 __be64 av_addr;
70 u32 reserved2[4];
71 __be32 dqpn;
72 __be32 qkey;
73 u32 reserved3[2];
74};
75
76struct mthca_arbel_ud_seg {
77 __be32 av[8];
78 __be32 dqpn;
79 __be32 qkey;
80 u32 reserved[2];
81};
82
83struct mthca_bind_seg {
84 __be32 flags; /* [31] Atomic [30] rem write [29] rem read */
85 u32 reserved;
86 __be32 new_rkey;
87 __be32 lkey;
88 __be64 addr;
89 __be64 length;
90};
91
92struct mthca_raddr_seg {
93 __be64 raddr;
94 __be32 rkey;
95 u32 reserved;
96};
97
98struct mthca_atomic_seg {
99 __be64 swap_add;
100 __be64 compare;
101};
102
103struct mthca_data_seg {
104 __be32 byte_count;
105 __be32 lkey;
106 __be64 addr;
107};
108
109struct mthca_mlx_seg {
110 __be32 nda_op;
111 __be32 nds;
112 __be32 flags; /* [17] VL15 [16] SLR [14:12] static rate
113 [11:8] SL [3] C [2] E */
114 __be16 rlid;
115 __be16 vcrc;
116};
117
Roland Dreier80885452007-07-18 11:30:34 -0700118static __always_inline void mthca_set_data_seg(struct mthca_data_seg *dseg,
119 struct ib_sge *sg)
120{
121 dseg->byte_count = cpu_to_be32(sg->length);
122 dseg->lkey = cpu_to_be32(sg->lkey);
123 dseg->addr = cpu_to_be64(sg->addr);
124}
125
126static __always_inline void mthca_set_data_seg_inval(struct mthca_data_seg *dseg)
127{
128 dseg->byte_count = 0;
129 dseg->lkey = cpu_to_be32(MTHCA_INVAL_LKEY);
130 dseg->addr = 0;
131}
132
Roland Dreierc04bc3d2005-08-19 10:33:35 -0700133#endif /* MTHCA_WQE_H */