1 | /* |
2 | * Copyright (c) 2015 Mellanox Technologies. 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 | #ifndef ISCSI_ISER_H |
33 | #define ISCSI_ISER_H |
34 | |
35 | #define ISER_ZBVA_NOT_SUP 0x80 |
36 | #define ISER_SEND_W_INV_NOT_SUP 0x40 |
37 | #define ISERT_ZBVA_NOT_USED 0x80 |
38 | #define ISERT_SEND_W_INV_NOT_USED 0x40 |
39 | |
40 | #define ISCSI_CTRL 0x10 |
41 | #define ISER_HELLO 0x20 |
42 | #define ISER_HELLORPLY 0x30 |
43 | |
44 | #define ISER_VER 0x10 |
45 | #define ISER_WSV 0x08 |
46 | #define ISER_RSV 0x04 |
47 | |
48 | /** |
49 | * struct iser_cm_hdr - iSER CM header (from iSER Annex A12) |
50 | * |
51 | * @flags: flags support (zbva, send_w_inv) |
52 | * @rsvd: reserved |
53 | */ |
54 | struct iser_cm_hdr { |
55 | u8 flags; |
56 | u8 rsvd[3]; |
57 | } __packed; |
58 | |
59 | /** |
60 | * struct iser_ctrl - iSER header of iSCSI control PDU |
61 | * |
62 | * @flags: opcode and read/write valid bits |
63 | * @rsvd: reserved |
64 | * @write_stag: write rkey |
65 | * @write_va: write virtual address |
66 | * @reaf_stag: read rkey |
67 | * @read_va: read virtual address |
68 | */ |
69 | struct iser_ctrl { |
70 | u8 flags; |
71 | u8 rsvd[3]; |
72 | __be32 write_stag; |
73 | __be64 write_va; |
74 | __be32 read_stag; |
75 | __be64 read_va; |
76 | } __packed; |
77 | |
78 | #endif /* ISCSI_ISER_H */ |
79 | |