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TOMOYO Linux Cross Reference
Linux/include/scsi/iser.h

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  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 

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