| 1 | |
| 2 | * Copyright (c) 2015 Mellanox Technologies. All rights reserved.
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| 3 | *
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| 4 | * This software is available to you under a choice of one of two
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| 5 | * licenses. You may choose to be licensed under the terms of the GNU
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| 6 | * General Public License (GPL) Version 2, available from the file
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| 7 | * COPYING in the main directory of this source tree, or the
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| 8 | * OpenIB.org BSD license below:
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| 9 | *
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| 10 | * Redistribution and use in source and binary forms, with or
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| 11 | * without modification, are permitted provided that the following
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| 12 | * conditions are met:
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| 13 | *
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| 14 | * - Redistributions of source code must retain the above
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| 15 | * copyright notice, this list of conditions and the following
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| 16 | * disclaimer.
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| 17 | *
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| 18 | * - Redistributions in binary form must reproduce the above
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| 19 | * copyright notice, this list of conditions and the following
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| 20 | * disclaimer in the documentation and/or other materials
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| 21 | * provided with the distribution.
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| 22 | *
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| 23 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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| 24 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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| 25 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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| 26 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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| 27 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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| 28 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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| 29 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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| 30 | * SOFTWARE.
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| 31 |
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| 32 | #ifndef ISCSI_ISER_H
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| 33 | #define ISCSI_ISER_H
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| 34 |
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| 35 | #define ISER_ZBVA_NOT_SUP 0x80
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| 36 | #define ISER_SEND_W_INV_NOT_SUP 0x40
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| 37 | #define ISERT_ZBVA_NOT_USED 0x80
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| 38 | #define ISERT_SEND_W_INV_NOT_USED 0x40
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| 39 |
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| 40 | #define ISCSI_CTRL 0x10
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| 41 | #define ISER_HELLO 0x20
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| 42 | #define ISER_HELLORPLY 0x30
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| 43 |
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| 44 | #define ISER_VER 0x10
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| 45 | #define ISER_WSV 0x08
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| 46 | #define ISER_RSV 0x04
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| 47 |
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| 48 | |
| 49 | * struct iser_cm_hdr - iSER CM header (from iSER Annex A12)
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| 50 | *
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| 51 | * @flags: flags support (zbva, send_w_inv)
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| 52 | * @rsvd: reserved
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| 53 |
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| 54 | struct iser_cm_hdr {
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| 55 | u8 flags;
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| 56 | u8 rsvd[3];
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| 57 | } __packed;
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| 58 |
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| 59 | |
| 60 | * struct iser_ctrl - iSER header of iSCSI control PDU
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| 61 | *
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| 62 | * @flags: opcode and read/write valid bits
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| 63 | * @rsvd: reserved
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| 64 | * @write_stag: write rkey
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| 65 | * @write_va: write virtual address
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| 66 | * @read_stag: read rkey
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| 67 | * @read_va: read virtual address
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| 68 |
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| 69 | struct iser_ctrl {
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| 70 | u8 flags;
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| 71 | u8 rsvd[3];
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| 72 | __be32 write_stag;
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| 73 | __be64 write_va;
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| 74 | __be32 read_stag;
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| 75 | __be64 read_va;
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| 76 | } __packed;
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| 77 |
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| 78 | #endif
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