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[SCSI] open-iscsi/linux-iscsi-5 Initiator: Header files
open-iscsi-headers.patch - common header files: - iscsi_if.h (user/kernel #defines and user/kernel events); - iscsi_proto.h (RFC3720 #defines and types); - scsi_transport_iscsi.h (transport API, transport #defines and types). Signed-off-by: Alex Aizman <itn780@yahoo.com> Signed-off-by: Dmitry Yusupov <dmitry_yus@yahoo.com> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Alex Aizman
committed by
James Bottomley
James Bottomley
parent
885ececaa9
commit
39e84790d3
@@ -0,0 +1,245 @@
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/*
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* iSCSI User/Kernel Shares (Defines, Constants, Protocol definitions, etc)
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*
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* Copyright (C) 2005 Dmitry Yusupov
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* Copyright (C) 2005 Alex Aizman
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* maintained by open-iscsi@googlegroups.com
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published
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* by the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* See the file COPYING included with this distribution for more details.
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*/
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#ifndef ISCSI_IF_H
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#define ISCSI_IF_H
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#include <scsi/iscsi_proto.h>
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#define UEVENT_BASE 10
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#define KEVENT_BASE 100
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#define ISCSI_ERR_BASE 1000
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enum iscsi_uevent_e {
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ISCSI_UEVENT_UNKNOWN = 0,
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/* down events */
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ISCSI_UEVENT_CREATE_SESSION = UEVENT_BASE + 1,
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ISCSI_UEVENT_DESTROY_SESSION = UEVENT_BASE + 2,
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ISCSI_UEVENT_CREATE_CONN = UEVENT_BASE + 3,
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ISCSI_UEVENT_DESTROY_CONN = UEVENT_BASE + 4,
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ISCSI_UEVENT_BIND_CONN = UEVENT_BASE + 5,
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ISCSI_UEVENT_SET_PARAM = UEVENT_BASE + 6,
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ISCSI_UEVENT_START_CONN = UEVENT_BASE + 7,
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ISCSI_UEVENT_STOP_CONN = UEVENT_BASE + 8,
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ISCSI_UEVENT_SEND_PDU = UEVENT_BASE + 9,
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ISCSI_UEVENT_GET_STATS = UEVENT_BASE + 10,
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ISCSI_UEVENT_GET_PARAM = UEVENT_BASE + 11,
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/* up events */
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ISCSI_KEVENT_RECV_PDU = KEVENT_BASE + 1,
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ISCSI_KEVENT_CONN_ERROR = KEVENT_BASE + 2,
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ISCSI_KEVENT_IF_ERROR = KEVENT_BASE + 3,
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};
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struct iscsi_uevent {
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uint32_t type; /* k/u events type */
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uint32_t iferror; /* carries interface or resource errors */
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uint64_t transport_handle;
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union {
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/* messages u -> k */
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struct msg_create_session {
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uint32_t initial_cmdsn;
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} c_session;
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struct msg_destroy_session {
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uint64_t session_handle;
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uint32_t sid;
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} d_session;
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struct msg_create_conn {
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uint64_t session_handle;
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uint32_t cid;
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uint32_t sid;
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} c_conn;
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struct msg_bind_conn {
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uint64_t session_handle;
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uint64_t conn_handle;
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uint32_t transport_fd;
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uint32_t is_leading;
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} b_conn;
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struct msg_destroy_conn {
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uint64_t conn_handle;
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uint32_t cid;
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} d_conn;
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struct msg_send_pdu {
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uint32_t hdr_size;
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uint32_t data_size;
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uint64_t conn_handle;
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} send_pdu;
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struct msg_set_param {
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uint64_t conn_handle;
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uint32_t param; /* enum iscsi_param */
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uint32_t value;
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} set_param;
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struct msg_start_conn {
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uint64_t conn_handle;
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} start_conn;
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struct msg_stop_conn {
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uint64_t conn_handle;
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uint32_t flag;
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} stop_conn;
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struct msg_get_stats {
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uint64_t conn_handle;
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} get_stats;
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} u;
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union {
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/* messages k -> u */
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uint64_t handle;
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int retcode;
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struct msg_create_session_ret {
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uint64_t session_handle;
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uint32_t sid;
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} c_session_ret;
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struct msg_recv_req {
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uint64_t recv_handle;
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uint64_t conn_handle;
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} recv_req;
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struct msg_conn_error {
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uint64_t conn_handle;
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uint32_t error; /* enum iscsi_err */
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} connerror;
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} r;
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} __attribute__ ((aligned (sizeof(uint64_t))));
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/*
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* Common error codes
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*/
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enum iscsi_err {
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ISCSI_OK = 0,
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ISCSI_ERR_DATASN = ISCSI_ERR_BASE + 1,
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ISCSI_ERR_DATA_OFFSET = ISCSI_ERR_BASE + 2,
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ISCSI_ERR_MAX_CMDSN = ISCSI_ERR_BASE + 3,
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ISCSI_ERR_EXP_CMDSN = ISCSI_ERR_BASE + 4,
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ISCSI_ERR_BAD_OPCODE = ISCSI_ERR_BASE + 5,
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ISCSI_ERR_DATALEN = ISCSI_ERR_BASE + 6,
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ISCSI_ERR_AHSLEN = ISCSI_ERR_BASE + 7,
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ISCSI_ERR_PROTO = ISCSI_ERR_BASE + 8,
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ISCSI_ERR_LUN = ISCSI_ERR_BASE + 9,
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ISCSI_ERR_BAD_ITT = ISCSI_ERR_BASE + 10,
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ISCSI_ERR_CONN_FAILED = ISCSI_ERR_BASE + 11,
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ISCSI_ERR_R2TSN = ISCSI_ERR_BASE + 12,
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ISCSI_ERR_SESSION_FAILED = ISCSI_ERR_BASE + 13,
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ISCSI_ERR_HDR_DGST = ISCSI_ERR_BASE + 14,
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ISCSI_ERR_DATA_DGST = ISCSI_ERR_BASE + 15,
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ISCSI_ERR_PARAM_NOT_FOUND = ISCSI_ERR_BASE + 16
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};
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/*
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* iSCSI Parameters (RFC3720)
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*/
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enum iscsi_param {
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ISCSI_PARAM_MAX_RECV_DLENGTH = 0,
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ISCSI_PARAM_MAX_XMIT_DLENGTH = 1,
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ISCSI_PARAM_HDRDGST_EN = 2,
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ISCSI_PARAM_DATADGST_EN = 3,
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ISCSI_PARAM_INITIAL_R2T_EN = 4,
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ISCSI_PARAM_MAX_R2T = 5,
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ISCSI_PARAM_IMM_DATA_EN = 6,
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ISCSI_PARAM_FIRST_BURST = 7,
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ISCSI_PARAM_MAX_BURST = 8,
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ISCSI_PARAM_PDU_INORDER_EN = 9,
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ISCSI_PARAM_DATASEQ_INORDER_EN = 10,
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ISCSI_PARAM_ERL = 11,
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ISCSI_PARAM_IFMARKER_EN = 12,
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ISCSI_PARAM_OFMARKER_EN = 13,
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};
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#define ISCSI_PARAM_MAX 14
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typedef uint64_t iscsi_sessionh_t; /* iSCSI Data-Path session handle */
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typedef uint64_t iscsi_connh_t; /* iSCSI Data-Path connection handle */
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#define iscsi_ptr(_handle) ((void*)(unsigned long)_handle)
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#define iscsi_handle(_ptr) ((uint64_t)(unsigned long)_ptr)
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#define iscsi_hostdata(_hostdata) ((void*)_hostdata + sizeof(unsigned long))
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/*
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* These flags presents iSCSI Data-Path capabilities.
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*/
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#define CAP_RECOVERY_L0 0x1
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#define CAP_RECOVERY_L1 0x2
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#define CAP_RECOVERY_L2 0x4
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#define CAP_MULTI_R2T 0x8
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#define CAP_HDRDGST 0x10
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#define CAP_DATADGST 0x20
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#define CAP_MULTI_CONN 0x40
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#define CAP_TEXT_NEGO 0x80
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#define CAP_MARKERS 0x100
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/*
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* These flags describes reason of stop_conn() call
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*/
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#define STOP_CONN_TERM 0x1
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#define STOP_CONN_SUSPEND 0x2
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#define STOP_CONN_RECOVER 0x3
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#define ISCSI_STATS_CUSTOM_MAX 32
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#define ISCSI_STATS_CUSTOM_DESC_MAX 64
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struct iscsi_stats_custom {
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char desc[ISCSI_STATS_CUSTOM_DESC_MAX];
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uint64_t value;
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};
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/*
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* struct iscsi_stats - iSCSI Statistics (iSCSI MIB)
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*
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* Note: this structure contains counters collected on per-connection basis.
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*/
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struct iscsi_stats {
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/* octets */
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uint64_t txdata_octets;
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uint64_t rxdata_octets;
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/* xmit pdus */
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uint32_t noptx_pdus;
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uint32_t scsicmd_pdus;
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uint32_t tmfcmd_pdus;
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uint32_t login_pdus;
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uint32_t text_pdus;
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uint32_t dataout_pdus;
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uint32_t logout_pdus;
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uint32_t snack_pdus;
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/* recv pdus */
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uint32_t noprx_pdus;
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uint32_t scsirsp_pdus;
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uint32_t tmfrsp_pdus;
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uint32_t textrsp_pdus;
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uint32_t datain_pdus;
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uint32_t logoutrsp_pdus;
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uint32_t r2t_pdus;
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uint32_t async_pdus;
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uint32_t rjt_pdus;
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/* errors */
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uint32_t digest_err;
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uint32_t timeout_err;
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/*
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* iSCSI Custom Statistics support, i.e. Transport could
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* extend existing MIB statistics with its own specific statistics
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* up to ISCSI_STATS_CUSTOM_MAX
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*/
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uint32_t custom_length;
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struct iscsi_stats_custom custom[0]
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__attribute__ ((aligned (sizeof(uint64_t))));
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};
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#endif
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File diff suppressed because it is too large
Load Diff
@@ -1,8 +1,10 @@
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/*
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/*
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* iSCSI transport class definitions
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* iSCSI transport class definitions
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*
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*
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* Copyright (C) IBM Corporation, 2004
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* Copyright (C) IBM Corporation, 2004
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* Copyright (C) Mike Christie, 2004
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* Copyright (C) Mike Christie, 2004 - 2005
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* Copyright (C) Dmitry Yusupov, 2004 - 2005
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* Copyright (C) Alex Aizman, 2004 - 2005
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* it under the terms of the GNU General Public License as published by
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@@ -21,158 +23,64 @@
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#ifndef SCSI_TRANSPORT_ISCSI_H
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#ifndef SCSI_TRANSPORT_ISCSI_H
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#define SCSI_TRANSPORT_ISCSI_H
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#define SCSI_TRANSPORT_ISCSI_H
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#include <linux/config.h>
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#include <scsi/iscsi_if.h>
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#include <linux/in6.h>
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#include <linux/in.h>
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struct scsi_transport_template;
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/**
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* struct iscsi_transport - iSCSI Transport template
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struct iscsi_class_session {
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*
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uint8_t isid[6];
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* @name: transport name
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uint16_t tsih;
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* @caps: iSCSI Data-Path capabilities
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int header_digest; /* 1 CRC32, 0 None */
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* @create_session: create new iSCSI session object
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int data_digest; /* 1 CRC32, 0 None */
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* @destroy_session: destroy existing iSCSI session object
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uint16_t tpgt;
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* @create_conn: create new iSCSI connection
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union {
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* @bind_conn: associate this connection with existing iSCSI session
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struct in6_addr sin6_addr;
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* and specified transport descriptor
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struct in_addr sin_addr;
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* @destroy_conn: destroy inactive iSCSI connection
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} u;
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* @set_param: set iSCSI Data-Path operational parameter
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sa_family_t addr_type; /* must be AF_INET or AF_INET6 */
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* @start_conn: set connection to be operational
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uint16_t port; /* must be in network byte order */
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* @stop_conn: suspend/recover/terminate connection
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int initial_r2t; /* 1 Yes, 0 No */
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* @send_pdu: send iSCSI PDU, Login, Logout, NOP-Out, Reject, Text.
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int immediate_data; /* 1 Yes, 0 No */
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*
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uint32_t max_recv_data_segment_len;
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* Template API provided by iSCSI Transport
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uint32_t max_burst_len;
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*/
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uint32_t first_burst_len;
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struct iscsi_transport {
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uint16_t def_time2wait;
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struct module *owner;
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uint16_t def_time2retain;
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char *name;
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uint16_t max_outstanding_r2t;
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unsigned int caps;
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int data_pdu_in_order; /* 1 Yes, 0 No */
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struct scsi_host_template *host_template;
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int data_sequence_in_order; /* 1 Yes, 0 No */
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int hostdata_size;
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int erl;
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int max_lun;
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unsigned int max_conn;
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unsigned int max_cmd_len;
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iscsi_sessionh_t (*create_session) (uint32_t initial_cmdsn,
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struct Scsi_Host *shost);
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void (*destroy_session) (iscsi_sessionh_t session);
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iscsi_connh_t (*create_conn) (iscsi_sessionh_t session, uint32_t cid);
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int (*bind_conn) (iscsi_sessionh_t session, iscsi_connh_t conn,
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uint32_t transport_fd, int is_leading);
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int (*start_conn) (iscsi_connh_t conn);
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void (*stop_conn) (iscsi_connh_t conn, int flag);
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void (*destroy_conn) (iscsi_connh_t conn);
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int (*set_param) (iscsi_connh_t conn, enum iscsi_param param,
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uint32_t value);
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int (*get_param) (iscsi_connh_t conn, enum iscsi_param param,
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uint32_t *value);
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int (*send_pdu) (iscsi_connh_t conn, struct iscsi_hdr *hdr,
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char *data, uint32_t data_size);
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void (*get_stats) (iscsi_connh_t conn, struct iscsi_stats *stats);
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};
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};
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/*
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/*
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* accessor macros
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* transport registration upcalls
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*/
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*/
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#define iscsi_isid(x) \
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extern int iscsi_register_transport(struct iscsi_transport *tt);
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(((struct iscsi_class_session *)&(x)->starget_data)->isid)
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extern int iscsi_unregister_transport(struct iscsi_transport *tt);
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#define iscsi_tsih(x) \
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(((struct iscsi_class_session *)&(x)->starget_data)->tsih)
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#define iscsi_header_digest(x) \
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(((struct iscsi_class_session *)&(x)->starget_data)->header_digest)
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#define iscsi_data_digest(x) \
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(((struct iscsi_class_session *)&(x)->starget_data)->data_digest)
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#define iscsi_port(x) \
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(((struct iscsi_class_session *)&(x)->starget_data)->port)
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#define iscsi_addr_type(x) \
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(((struct iscsi_class_session *)&(x)->starget_data)->addr_type)
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#define iscsi_sin_addr(x) \
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||||||
(((struct iscsi_class_session *)&(x)->starget_data)->u.sin_addr)
|
|
||||||
#define iscsi_sin6_addr(x) \
|
|
||||||
(((struct iscsi_class_session *)&(x)->starget_data)->u.sin6_addr)
|
|
||||||
#define iscsi_tpgt(x) \
|
|
||||||
(((struct iscsi_class_session *)&(x)->starget_data)->tpgt)
|
|
||||||
#define iscsi_initial_r2t(x) \
|
|
||||||
(((struct iscsi_class_session *)&(x)->starget_data)->initial_r2t)
|
|
||||||
#define iscsi_immediate_data(x) \
|
|
||||||
(((struct iscsi_class_session *)&(x)->starget_data)->immediate_data)
|
|
||||||
#define iscsi_max_recv_data_segment_len(x) \
|
|
||||||
(((struct iscsi_class_session *)&(x)->starget_data)->max_recv_data_segment_len)
|
|
||||||
#define iscsi_max_burst_len(x) \
|
|
||||||
(((struct iscsi_class_session *)&(x)->starget_data)->max_burst_len)
|
|
||||||
#define iscsi_first_burst_len(x) \
|
|
||||||
(((struct iscsi_class_session *)&(x)->starget_data)->first_burst_len)
|
|
||||||
#define iscsi_def_time2wait(x) \
|
|
||||||
(((struct iscsi_class_session *)&(x)->starget_data)->def_time2wait)
|
|
||||||
#define iscsi_def_time2retain(x) \
|
|
||||||
(((struct iscsi_class_session *)&(x)->starget_data)->def_time2retain)
|
|
||||||
#define iscsi_max_outstanding_r2t(x) \
|
|
||||||
(((struct iscsi_class_session *)&(x)->starget_data)->max_outstanding_r2t)
|
|
||||||
#define iscsi_data_pdu_in_order(x) \
|
|
||||||
(((struct iscsi_class_session *)&(x)->starget_data)->data_pdu_in_order)
|
|
||||||
#define iscsi_data_sequence_in_order(x) \
|
|
||||||
(((struct iscsi_class_session *)&(x)->starget_data)->data_sequence_in_order)
|
|
||||||
#define iscsi_erl(x) \
|
|
||||||
(((struct iscsi_class_session *)&(x)->starget_data)->erl)
|
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* The functions by which the transport class and the driver communicate
|
* control plane upcalls
|
||||||
*/
|
*/
|
||||||
struct iscsi_function_template {
|
extern void iscsi_conn_error(iscsi_connh_t conn, enum iscsi_err error);
|
||||||
/*
|
extern int iscsi_recv_pdu(iscsi_connh_t conn, struct iscsi_hdr *hdr,
|
||||||
* target attrs
|
char *data, uint32_t data_size);
|
||||||
*/
|
|
||||||
void (*get_isid)(struct scsi_target *);
|
|
||||||
void (*get_tsih)(struct scsi_target *);
|
|
||||||
void (*get_header_digest)(struct scsi_target *);
|
|
||||||
void (*get_data_digest)(struct scsi_target *);
|
|
||||||
void (*get_port)(struct scsi_target *);
|
|
||||||
void (*get_tpgt)(struct scsi_target *);
|
|
||||||
/*
|
|
||||||
* In get_ip_address the lld must set the address and
|
|
||||||
* the address type
|
|
||||||
*/
|
|
||||||
void (*get_ip_address)(struct scsi_target *);
|
|
||||||
/*
|
|
||||||
* The lld should snprintf the name or alias to the buffer
|
|
||||||
*/
|
|
||||||
ssize_t (*get_target_name)(struct scsi_target *, char *, ssize_t);
|
|
||||||
ssize_t (*get_target_alias)(struct scsi_target *, char *, ssize_t);
|
|
||||||
void (*get_initial_r2t)(struct scsi_target *);
|
|
||||||
void (*get_immediate_data)(struct scsi_target *);
|
|
||||||
void (*get_max_recv_data_segment_len)(struct scsi_target *);
|
|
||||||
void (*get_max_burst_len)(struct scsi_target *);
|
|
||||||
void (*get_first_burst_len)(struct scsi_target *);
|
|
||||||
void (*get_def_time2wait)(struct scsi_target *);
|
|
||||||
void (*get_def_time2retain)(struct scsi_target *);
|
|
||||||
void (*get_max_outstanding_r2t)(struct scsi_target *);
|
|
||||||
void (*get_data_pdu_in_order)(struct scsi_target *);
|
|
||||||
void (*get_data_sequence_in_order)(struct scsi_target *);
|
|
||||||
void (*get_erl)(struct scsi_target *);
|
|
||||||
|
|
||||||
/*
|
|
||||||
* host atts
|
|
||||||
*/
|
|
||||||
|
|
||||||
/*
|
|
||||||
* The lld should snprintf the name or alias to the buffer
|
|
||||||
*/
|
|
||||||
ssize_t (*get_initiator_alias)(struct Scsi_Host *, char *, ssize_t);
|
|
||||||
ssize_t (*get_initiator_name)(struct Scsi_Host *, char *, ssize_t);
|
|
||||||
/*
|
|
||||||
* The driver sets these to tell the transport class it
|
|
||||||
* wants the attributes displayed in sysfs. If the show_ flag
|
|
||||||
* is not set, the attribute will be private to the transport
|
|
||||||
* class. We could probably just test if a get_ fn was set
|
|
||||||
* since we only use the values for sysfs but this is how
|
|
||||||
* fc does it too.
|
|
||||||
*/
|
|
||||||
unsigned long show_isid:1;
|
|
||||||
unsigned long show_tsih:1;
|
|
||||||
unsigned long show_header_digest:1;
|
|
||||||
unsigned long show_data_digest:1;
|
|
||||||
unsigned long show_port:1;
|
|
||||||
unsigned long show_tpgt:1;
|
|
||||||
unsigned long show_ip_address:1;
|
|
||||||
unsigned long show_target_name:1;
|
|
||||||
unsigned long show_target_alias:1;
|
|
||||||
unsigned long show_initial_r2t:1;
|
|
||||||
unsigned long show_immediate_data:1;
|
|
||||||
unsigned long show_max_recv_data_segment_len:1;
|
|
||||||
unsigned long show_max_burst_len:1;
|
|
||||||
unsigned long show_first_burst_len:1;
|
|
||||||
unsigned long show_def_time2wait:1;
|
|
||||||
unsigned long show_def_time2retain:1;
|
|
||||||
unsigned long show_max_outstanding_r2t:1;
|
|
||||||
unsigned long show_data_pdu_in_order:1;
|
|
||||||
unsigned long show_data_sequence_in_order:1;
|
|
||||||
unsigned long show_erl:1;
|
|
||||||
unsigned long show_initiator_name:1;
|
|
||||||
unsigned long show_initiator_alias:1;
|
|
||||||
};
|
|
||||||
|
|
||||||
struct scsi_transport_template *iscsi_attach_transport(struct iscsi_function_template *);
|
|
||||||
void iscsi_release_transport(struct scsi_transport_template *);
|
|
||||||
|
|
||||||
#endif
|
#endif
|
||||||
|
|||||||
Reference in New Issue
Block a user