| Sagi Grimberg | d3cf81f | 2015-12-09 14:12:03 +0200 | [diff] [blame] | 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 */ |