projects / linux.git / blame
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|---|---|---|
| d3cf81f9 SG |
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 */ |