Alex Aizman | 39e8479 | 2005-08-04 19:31:00 -0700 | [diff] [blame] | 1 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | * iSCSI transport class definitions |
| 3 | * |
| 4 | * Copyright (C) IBM Corporation, 2004 |
Mike Christie | 7996a77 | 2006-04-06 21:13:41 -0500 | [diff] [blame] | 5 | * Copyright (C) Mike Christie, 2004 - 2006 |
Alex Aizman | 39e8479 | 2005-08-04 19:31:00 -0700 | [diff] [blame] | 6 | * Copyright (C) Dmitry Yusupov, 2004 - 2005 |
| 7 | * Copyright (C) Alex Aizman, 2004 - 2005 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License as published by |
| 11 | * the Free Software Foundation; either version 2 of the License, or |
| 12 | * (at your option) any later version. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | * GNU General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this program; if not, write to the Free Software |
| 21 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 22 | */ |
| 23 | #ifndef SCSI_TRANSPORT_ISCSI_H |
| 24 | #define SCSI_TRANSPORT_ISCSI_H |
| 25 | |
Mike Christie | 7b8631b | 2006-01-13 18:05:50 -0600 | [diff] [blame] | 26 | #include <linux/device.h> |
Michael S. Tsirkin | d773c08 | 2007-10-02 14:38:05 -0700 | [diff] [blame] | 27 | #include <linux/list.h> |
| 28 | #include <linux/mutex.h> |
Alex Aizman | 39e8479 | 2005-08-04 19:31:00 -0700 | [diff] [blame] | 29 | #include <scsi/iscsi_if.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | |
Mike Christie | 7b8631b | 2006-01-13 18:05:50 -0600 | [diff] [blame] | 31 | struct scsi_transport_template; |
Mike Christie | 7996a77 | 2006-04-06 21:13:41 -0500 | [diff] [blame] | 32 | struct iscsi_transport; |
Mike Christie | d82ff9be | 2008-05-21 15:54:13 -0500 | [diff] [blame] | 33 | struct iscsi_endpoint; |
Mike Christie | 7b8631b | 2006-01-13 18:05:50 -0600 | [diff] [blame] | 34 | struct Scsi_Host; |
Mike Christie | 7b8631b | 2006-01-13 18:05:50 -0600 | [diff] [blame] | 35 | struct iscsi_cls_conn; |
Mike Christie | 7996a77 | 2006-04-06 21:13:41 -0500 | [diff] [blame] | 36 | struct iscsi_conn; |
Mike Christie | 9c19a7d | 2008-05-21 15:54:09 -0500 | [diff] [blame] | 37 | struct iscsi_task; |
Mike Christie | a54a52c | 2006-06-28 12:00:23 -0500 | [diff] [blame] | 38 | struct sockaddr; |
Mike Christie | 7b8631b | 2006-01-13 18:05:50 -0600 | [diff] [blame] | 39 | |
Alex Aizman | 39e8479 | 2005-08-04 19:31:00 -0700 | [diff] [blame] | 40 | /** |
| 41 | * struct iscsi_transport - iSCSI Transport template |
| 42 | * |
| 43 | * @name: transport name |
| 44 | * @caps: iSCSI Data-Path capabilities |
| 45 | * @create_session: create new iSCSI session object |
| 46 | * @destroy_session: destroy existing iSCSI session object |
| 47 | * @create_conn: create new iSCSI connection |
| 48 | * @bind_conn: associate this connection with existing iSCSI session |
| 49 | * and specified transport descriptor |
| 50 | * @destroy_conn: destroy inactive iSCSI connection |
Mike Christie | a54a52c | 2006-06-28 12:00:23 -0500 | [diff] [blame] | 51 | * @set_param: set iSCSI parameter. Return 0 on success, -ENODATA |
| 52 | * when param is not supported, and a -Exx value on other |
| 53 | * error. |
| 54 | * @get_param get iSCSI parameter. Must return number of bytes |
| 55 | * copied to buffer on success, -ENODATA when param |
| 56 | * is not supported, and a -Exx value on other error |
Alex Aizman | 39e8479 | 2005-08-04 19:31:00 -0700 | [diff] [blame] | 57 | * @start_conn: set connection to be operational |
| 58 | * @stop_conn: suspend/recover/terminate connection |
| 59 | * @send_pdu: send iSCSI PDU, Login, Logout, NOP-Out, Reject, Text. |
Mike Christie | 7996a77 | 2006-04-06 21:13:41 -0500 | [diff] [blame] | 60 | * @session_recovery_timedout: notify LLD a block during recovery timed out |
Mike Christie | 3e5c28a | 2008-05-21 15:54:06 -0500 | [diff] [blame] | 61 | * @init_task: Initialize a iscsi_task and any internal structs. |
| 62 | * When offloading the data path, this is called from |
| 63 | * queuecommand with the session lock, or from the |
| 64 | * iscsi_conn_send_pdu context with the session lock. |
| 65 | * When not offloading the data path, this is called |
| 66 | * from the scsi work queue without the session lock. |
| 67 | * @xmit_task Requests LLD to transfer cmd task. Returns 0 or the |
Mike Christie | 3219e52 | 2006-05-30 00:37:28 -0500 | [diff] [blame] | 68 | * the number of bytes transferred on success, and -Exyz |
Mike Christie | 3e5c28a | 2008-05-21 15:54:06 -0500 | [diff] [blame] | 69 | * value on error. When offloading the data path, this |
| 70 | * is called from queuecommand with the session lock, or |
| 71 | * from the iscsi_conn_send_pdu context with the session |
| 72 | * lock. When not offloading the data path, this is called |
| 73 | * from the scsi work queue without the session lock. |
| 74 | * @cleanup_task: requests LLD to fail task. Called with session lock |
| 75 | * and after the connection has been suspended and |
| 76 | * terminated during recovery. If called |
Mike Christie | 7996a77 | 2006-04-06 21:13:41 -0500 | [diff] [blame] | 77 | * from abort task then connection is not suspended |
| 78 | * or terminated but sk_callback_lock is held |
Alex Aizman | 39e8479 | 2005-08-04 19:31:00 -0700 | [diff] [blame] | 79 | * |
| 80 | * Template API provided by iSCSI Transport |
| 81 | */ |
| 82 | struct iscsi_transport { |
| 83 | struct module *owner; |
| 84 | char *name; |
| 85 | unsigned int caps; |
Mike Christie | fd7255f | 2006-04-06 21:13:36 -0500 | [diff] [blame] | 86 | /* LLD sets this to indicate what values it can export to sysfs */ |
Mike Christie | 1819dc8 | 2007-05-30 12:57:08 -0500 | [diff] [blame] | 87 | uint64_t param_mask; |
| 88 | uint64_t host_param_mask; |
Mike Christie | d82ff9be | 2008-05-21 15:54:13 -0500 | [diff] [blame] | 89 | struct iscsi_cls_session *(*create_session) (struct iscsi_endpoint *ep, |
Mike Christie | 7561352 | 2008-05-21 15:53:59 -0500 | [diff] [blame] | 90 | uint16_t cmds_max, uint16_t qdepth, |
Mike Christie | 5e7facb | 2009-03-05 14:46:06 -0600 | [diff] [blame] | 91 | uint32_t sn); |
Mike Christie | 7b7232f | 2006-02-01 21:06:49 -0600 | [diff] [blame] | 92 | void (*destroy_session) (struct iscsi_cls_session *session); |
| 93 | struct iscsi_cls_conn *(*create_conn) (struct iscsi_cls_session *sess, |
Mike Christie | 7b8631b | 2006-01-13 18:05:50 -0600 | [diff] [blame] | 94 | uint32_t cid); |
Mike Christie | 7b7232f | 2006-02-01 21:06:49 -0600 | [diff] [blame] | 95 | int (*bind_conn) (struct iscsi_cls_session *session, |
| 96 | struct iscsi_cls_conn *cls_conn, |
Or Gerlitz | 264faaa | 2006-05-02 19:46:36 -0500 | [diff] [blame] | 97 | uint64_t transport_eph, int is_leading); |
Mike Christie | 7b7232f | 2006-02-01 21:06:49 -0600 | [diff] [blame] | 98 | int (*start_conn) (struct iscsi_cls_conn *conn); |
| 99 | void (*stop_conn) (struct iscsi_cls_conn *conn, int flag); |
Mike Christie | 7b8631b | 2006-01-13 18:05:50 -0600 | [diff] [blame] | 100 | void (*destroy_conn) (struct iscsi_cls_conn *conn); |
Mike Christie | 7b7232f | 2006-02-01 21:06:49 -0600 | [diff] [blame] | 101 | int (*set_param) (struct iscsi_cls_conn *conn, enum iscsi_param param, |
Mike Christie | a54a52c | 2006-06-28 12:00:23 -0500 | [diff] [blame] | 102 | char *buf, int buflen); |
Mike Christie | 7b7232f | 2006-02-01 21:06:49 -0600 | [diff] [blame] | 103 | int (*get_conn_param) (struct iscsi_cls_conn *conn, |
Mike Christie | a54a52c | 2006-06-28 12:00:23 -0500 | [diff] [blame] | 104 | enum iscsi_param param, char *buf); |
Mike Christie | 7b7232f | 2006-02-01 21:06:49 -0600 | [diff] [blame] | 105 | int (*get_session_param) (struct iscsi_cls_session *session, |
Mike Christie | a54a52c | 2006-06-28 12:00:23 -0500 | [diff] [blame] | 106 | enum iscsi_param param, char *buf); |
Mike Christie | 1819dc8 | 2007-05-30 12:57:08 -0500 | [diff] [blame] | 107 | int (*get_host_param) (struct Scsi_Host *shost, |
| 108 | enum iscsi_host_param param, char *buf); |
Mike Christie | 1d9bf13 | 2007-05-30 12:57:11 -0500 | [diff] [blame] | 109 | int (*set_host_param) (struct Scsi_Host *shost, |
| 110 | enum iscsi_host_param param, char *buf, |
| 111 | int buflen); |
Mike Christie | 7b7232f | 2006-02-01 21:06:49 -0600 | [diff] [blame] | 112 | int (*send_pdu) (struct iscsi_cls_conn *conn, struct iscsi_hdr *hdr, |
Alex Aizman | 39e8479 | 2005-08-04 19:31:00 -0700 | [diff] [blame] | 113 | char *data, uint32_t data_size); |
Mike Christie | 7b7232f | 2006-02-01 21:06:49 -0600 | [diff] [blame] | 114 | void (*get_stats) (struct iscsi_cls_conn *conn, |
| 115 | struct iscsi_stats *stats); |
Mike Christie | 577577d | 2008-12-02 00:32:05 -0600 | [diff] [blame] | 116 | |
Mike Christie | 9c19a7d | 2008-05-21 15:54:09 -0500 | [diff] [blame] | 117 | int (*init_task) (struct iscsi_task *task); |
| 118 | int (*xmit_task) (struct iscsi_task *task); |
Mike Christie | 577577d | 2008-12-02 00:32:05 -0600 | [diff] [blame] | 119 | void (*cleanup_task) (struct iscsi_task *task); |
| 120 | |
Mike Christie | 2ff79d5 | 2008-12-02 00:32:14 -0600 | [diff] [blame] | 121 | int (*alloc_pdu) (struct iscsi_task *task, uint8_t opcode); |
Mike Christie | 577577d | 2008-12-02 00:32:05 -0600 | [diff] [blame] | 122 | int (*xmit_pdu) (struct iscsi_task *task); |
| 123 | int (*init_pdu) (struct iscsi_task *task, unsigned int offset, |
| 124 | unsigned int count); |
Mike Christie | 262ef63 | 2008-12-02 00:32:13 -0600 | [diff] [blame] | 125 | void (*parse_pdu_itt) (struct iscsi_conn *conn, itt_t itt, |
| 126 | int *index, int *age); |
| 127 | |
Mike Christie | 30a6c65 | 2006-04-06 21:13:39 -0500 | [diff] [blame] | 128 | void (*session_recovery_timedout) (struct iscsi_cls_session *session); |
Mike Christie | 10eb0f0 | 2009-05-13 17:57:38 -0500 | [diff] [blame^] | 129 | struct iscsi_endpoint *(*ep_connect) (struct Scsi_Host *shost, |
| 130 | struct sockaddr *dst_addr, |
Mike Christie | d82ff9be | 2008-05-21 15:54:13 -0500 | [diff] [blame] | 131 | int non_blocking); |
| 132 | int (*ep_poll) (struct iscsi_endpoint *ep, int timeout_ms); |
| 133 | void (*ep_disconnect) (struct iscsi_endpoint *ep); |
Mike Christie | 2174a04 | 2007-05-30 12:57:10 -0500 | [diff] [blame] | 134 | int (*tgt_dscvr) (struct Scsi_Host *shost, enum iscsi_tgt_dscvr type, |
Mike Christie | 01cb225 | 2006-06-28 12:00:22 -0500 | [diff] [blame] | 135 | uint32_t enable, struct sockaddr *dst_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 136 | }; |
| 137 | |
| 138 | /* |
Alex Aizman | 39e8479 | 2005-08-04 19:31:00 -0700 | [diff] [blame] | 139 | * transport registration upcalls |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 140 | */ |
Mike Christie | 7b8631b | 2006-01-13 18:05:50 -0600 | [diff] [blame] | 141 | extern struct scsi_transport_template *iscsi_register_transport(struct iscsi_transport *tt); |
Alex Aizman | 39e8479 | 2005-08-04 19:31:00 -0700 | [diff] [blame] | 142 | extern int iscsi_unregister_transport(struct iscsi_transport *tt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 143 | |
| 144 | /* |
Alex Aizman | 39e8479 | 2005-08-04 19:31:00 -0700 | [diff] [blame] | 145 | * control plane upcalls |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | */ |
Mike Christie | e5bd7b5 | 2008-09-24 11:46:10 -0500 | [diff] [blame] | 147 | extern void iscsi_conn_error_event(struct iscsi_cls_conn *conn, |
| 148 | enum iscsi_err error); |
Mike Christie | 7b7232f | 2006-02-01 21:06:49 -0600 | [diff] [blame] | 149 | extern int iscsi_recv_pdu(struct iscsi_cls_conn *conn, struct iscsi_hdr *hdr, |
Alex Aizman | 39e8479 | 2005-08-04 19:31:00 -0700 | [diff] [blame] | 150 | char *data, uint32_t data_size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 151 | |
Mike Christie | 7b8631b | 2006-01-13 18:05:50 -0600 | [diff] [blame] | 152 | struct iscsi_cls_conn { |
| 153 | struct list_head conn_list; /* item in connlist */ |
| 154 | void *dd_data; /* LLD private data */ |
| 155 | struct iscsi_transport *transport; |
Mike Christie | b5c7a12 | 2006-04-06 21:13:33 -0500 | [diff] [blame] | 156 | uint32_t cid; /* connection id */ |
Mike Christie | fd7255f | 2006-04-06 21:13:36 -0500 | [diff] [blame] | 157 | |
Mike Christie | 7b8631b | 2006-01-13 18:05:50 -0600 | [diff] [blame] | 158 | int active; /* must be accessed with the connlock */ |
| 159 | struct device dev; /* sysfs transport/container device */ |
Mike Christie | 7b8631b | 2006-01-13 18:05:50 -0600 | [diff] [blame] | 160 | }; |
| 161 | |
| 162 | #define iscsi_dev_to_conn(_dev) \ |
| 163 | container_of(_dev, struct iscsi_cls_conn, dev) |
| 164 | |
Mike Christie | 6eabafb | 2008-01-31 13:36:43 -0600 | [diff] [blame] | 165 | #define iscsi_conn_to_session(_conn) \ |
| 166 | iscsi_dev_to_session(_conn->dev.parent) |
| 167 | |
| 168 | /* iscsi class session state */ |
| 169 | enum { |
| 170 | ISCSI_SESSION_LOGGED_IN, |
| 171 | ISCSI_SESSION_FAILED, |
| 172 | ISCSI_SESSION_FREE, |
| 173 | }; |
Mike Christie | 7996a77 | 2006-04-06 21:13:41 -0500 | [diff] [blame] | 174 | |
Mike Christie | 7970634 | 2008-05-21 15:54:12 -0500 | [diff] [blame] | 175 | #define ISCSI_MAX_TARGET -1 |
| 176 | |
Mike Christie | 7b8631b | 2006-01-13 18:05:50 -0600 | [diff] [blame] | 177 | struct iscsi_cls_session { |
Mike Christie | 7b7232f | 2006-02-01 21:06:49 -0600 | [diff] [blame] | 178 | struct list_head sess_list; /* item in session_list */ |
Mike Christie | 7b8631b | 2006-01-13 18:05:50 -0600 | [diff] [blame] | 179 | struct iscsi_transport *transport; |
Mike Christie | 6eabafb | 2008-01-31 13:36:43 -0600 | [diff] [blame] | 180 | spinlock_t lock; |
Mike Christie | 45ab33b | 2008-03-04 13:26:55 -0600 | [diff] [blame] | 181 | struct work_struct block_work; |
| 182 | struct work_struct unblock_work; |
Mike Christie | bd976f6 | 2008-01-31 13:36:46 -0600 | [diff] [blame] | 183 | struct work_struct scan_work; |
| 184 | struct work_struct unbind_work; |
Mike Christie | fd7255f | 2006-04-06 21:13:36 -0500 | [diff] [blame] | 185 | |
Mike Christie | 30a6c65 | 2006-04-06 21:13:39 -0500 | [diff] [blame] | 186 | /* recovery fields */ |
| 187 | int recovery_tmo; |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 188 | struct delayed_work recovery_work; |
Mike Christie | 30a6c65 | 2006-04-06 21:13:39 -0500 | [diff] [blame] | 189 | |
Mike Christie | 7970634 | 2008-05-21 15:54:12 -0500 | [diff] [blame] | 190 | unsigned int target_id; |
Mike Christie | 30a6c65 | 2006-04-06 21:13:39 -0500 | [diff] [blame] | 191 | |
Mike Christie | 6eabafb | 2008-01-31 13:36:43 -0600 | [diff] [blame] | 192 | int state; |
Mike Christie | b5c7a12 | 2006-04-06 21:13:33 -0500 | [diff] [blame] | 193 | int sid; /* session id */ |
| 194 | void *dd_data; /* LLD private data */ |
Mike Christie | 7b8631b | 2006-01-13 18:05:50 -0600 | [diff] [blame] | 195 | struct device dev; /* sysfs transport/container device */ |
| 196 | }; |
| 197 | |
| 198 | #define iscsi_dev_to_session(_dev) \ |
| 199 | container_of(_dev, struct iscsi_cls_session, dev) |
| 200 | |
| 201 | #define iscsi_session_to_shost(_session) \ |
| 202 | dev_to_shost(_session->dev.parent) |
| 203 | |
Mike Christie | 8434aa8 | 2006-06-28 12:00:30 -0500 | [diff] [blame] | 204 | #define starget_to_session(_stgt) \ |
| 205 | iscsi_dev_to_session(_stgt->dev.parent) |
| 206 | |
Mike Christie | 32c6e1b | 2008-05-21 15:53:58 -0500 | [diff] [blame] | 207 | struct iscsi_cls_host { |
Mike Christie | 8aae18a | 2008-01-31 13:36:48 -0600 | [diff] [blame] | 208 | atomic_t nr_scans; |
Mike Christie | 30a6c65 | 2006-04-06 21:13:39 -0500 | [diff] [blame] | 209 | struct mutex mutex; |
| 210 | }; |
| 211 | |
Mike Christie | a4804cd | 2008-05-21 15:54:00 -0500 | [diff] [blame] | 212 | extern void iscsi_host_for_each_session(struct Scsi_Host *shost, |
| 213 | void (*fn)(struct iscsi_cls_session *)); |
| 214 | |
Mike Christie | d82ff9be | 2008-05-21 15:54:13 -0500 | [diff] [blame] | 215 | struct iscsi_endpoint { |
| 216 | void *dd_data; /* LLD private data */ |
| 217 | struct device dev; |
Mike Christie | 2153606 | 2008-09-24 11:46:11 -0500 | [diff] [blame] | 218 | uint64_t id; |
Mike Christie | d82ff9be | 2008-05-21 15:54:13 -0500 | [diff] [blame] | 219 | }; |
Mike Christie | a4804cd | 2008-05-21 15:54:00 -0500 | [diff] [blame] | 220 | |
Mike Christie | 7b8631b | 2006-01-13 18:05:50 -0600 | [diff] [blame] | 221 | /* |
| 222 | * session and connection functions that can be used by HW iSCSI LLDs |
| 223 | */ |
Mike Christie | 322d739 | 2008-01-31 13:36:52 -0600 | [diff] [blame] | 224 | #define iscsi_cls_session_printk(prefix, _cls_session, fmt, a...) \ |
| 225 | dev_printk(prefix, &(_cls_session)->dev, fmt, ##a) |
| 226 | |
| 227 | #define iscsi_cls_conn_printk(prefix, _cls_conn, fmt, a...) \ |
| 228 | dev_printk(prefix, &(_cls_conn)->dev, fmt, ##a) |
| 229 | |
Mike Christie | 6eabafb | 2008-01-31 13:36:43 -0600 | [diff] [blame] | 230 | extern int iscsi_session_chkready(struct iscsi_cls_session *session); |
Mike Christie | 8434aa8 | 2006-06-28 12:00:30 -0500 | [diff] [blame] | 231 | extern struct iscsi_cls_session *iscsi_alloc_session(struct Scsi_Host *shost, |
Mike Christie | 5d91e20 | 2008-05-21 15:54:01 -0500 | [diff] [blame] | 232 | struct iscsi_transport *transport, int dd_size); |
Mike Christie | 6a8a0d3 | 2006-06-28 12:00:31 -0500 | [diff] [blame] | 233 | extern int iscsi_add_session(struct iscsi_cls_session *session, |
| 234 | unsigned int target_id); |
Mike Christie | 2697478 | 2007-12-13 12:43:29 -0600 | [diff] [blame] | 235 | extern int iscsi_session_event(struct iscsi_cls_session *session, |
| 236 | enum iscsi_uevent_e event); |
Mike Christie | 7b8631b | 2006-01-13 18:05:50 -0600 | [diff] [blame] | 237 | extern struct iscsi_cls_session *iscsi_create_session(struct Scsi_Host *shost, |
Mike Christie | 6a8a0d3 | 2006-06-28 12:00:31 -0500 | [diff] [blame] | 238 | struct iscsi_transport *t, |
Mike Christie | 5d91e20 | 2008-05-21 15:54:01 -0500 | [diff] [blame] | 239 | int dd_size, |
Mike Christie | 6a8a0d3 | 2006-06-28 12:00:31 -0500 | [diff] [blame] | 240 | unsigned int target_id); |
Mike Christie | 8434aa8 | 2006-06-28 12:00:30 -0500 | [diff] [blame] | 241 | extern void iscsi_remove_session(struct iscsi_cls_session *session); |
| 242 | extern void iscsi_free_session(struct iscsi_cls_session *session); |
Mike Christie | 7b8631b | 2006-01-13 18:05:50 -0600 | [diff] [blame] | 243 | extern int iscsi_destroy_session(struct iscsi_cls_session *session); |
| 244 | extern struct iscsi_cls_conn *iscsi_create_conn(struct iscsi_cls_session *sess, |
Mike Christie | 5d91e20 | 2008-05-21 15:54:01 -0500 | [diff] [blame] | 245 | int dd_size, uint32_t cid); |
Mike Christie | 7b8631b | 2006-01-13 18:05:50 -0600 | [diff] [blame] | 246 | extern int iscsi_destroy_conn(struct iscsi_cls_conn *conn); |
Mike Christie | 30a6c65 | 2006-04-06 21:13:39 -0500 | [diff] [blame] | 247 | extern void iscsi_unblock_session(struct iscsi_cls_session *session); |
| 248 | extern void iscsi_block_session(struct iscsi_cls_session *session); |
Mike Christie | 8aae18a | 2008-01-31 13:36:48 -0600 | [diff] [blame] | 249 | extern int iscsi_scan_finished(struct Scsi_Host *shost, unsigned long time); |
Mike Christie | d82ff9be | 2008-05-21 15:54:13 -0500 | [diff] [blame] | 250 | extern struct iscsi_endpoint *iscsi_create_endpoint(int dd_size); |
| 251 | extern void iscsi_destroy_endpoint(struct iscsi_endpoint *ep); |
| 252 | extern struct iscsi_endpoint *iscsi_lookup_endpoint(u64 handle); |
Mike Christie | 53cb8a1 | 2006-06-28 12:00:32 -0500 | [diff] [blame] | 253 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 254 | #endif |