Commit | Line | Data |
---|---|---|
0896b752 | 1 | /* |
1da177e4 LT |
2 | * iSCSI transport class definitions |
3 | * | |
4 | * Copyright (C) IBM Corporation, 2004 | |
0896b752 AA |
5 | * Copyright (C) Mike Christie, 2004 - 2005 |
6 | * Copyright (C) Dmitry Yusupov, 2004 - 2005 | |
7 | * Copyright (C) Alex Aizman, 2004 - 2005 | |
1da177e4 LT |
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 | #include <linux/module.h> | |
0b950672 | 24 | #include <linux/mutex.h> |
5a0e3ad6 | 25 | #include <linux/slab.h> |
90eeb01a | 26 | #include <linux/bsg-lib.h> |
8d4a690c | 27 | #include <linux/idr.h> |
0896b752 | 28 | #include <net/tcp.h> |
1da177e4 LT |
29 | #include <scsi/scsi.h> |
30 | #include <scsi/scsi_host.h> | |
31 | #include <scsi/scsi_device.h> | |
32 | #include <scsi/scsi_transport.h> | |
33 | #include <scsi/scsi_transport_iscsi.h> | |
0896b752 | 34 | #include <scsi/iscsi_if.h> |
c01be6dc | 35 | #include <scsi/scsi_cmnd.h> |
90eeb01a | 36 | #include <scsi/scsi_bsg_iscsi.h> |
1da177e4 | 37 | |
4c2133c8 | 38 | #define ISCSI_TRANSPORT_VERSION "2.0-870" |
1da177e4 | 39 | |
c2332b00 FH |
40 | #define CREATE_TRACE_POINTS |
41 | #include <trace/events/iscsi.h> | |
42 | ||
43 | /* | |
44 | * Export tracepoint symbols to be used by other modules. | |
45 | */ | |
46 | EXPORT_TRACEPOINT_SYMBOL_GPL(iscsi_dbg_conn); | |
47 | EXPORT_TRACEPOINT_SYMBOL_GPL(iscsi_dbg_eh); | |
48 | EXPORT_TRACEPOINT_SYMBOL_GPL(iscsi_dbg_session); | |
49 | EXPORT_TRACEPOINT_SYMBOL_GPL(iscsi_dbg_tcp); | |
50 | EXPORT_TRACEPOINT_SYMBOL_GPL(iscsi_dbg_sw_tcp); | |
51 | ||
632248aa MC |
52 | static int dbg_session; |
53 | module_param_named(debug_session, dbg_session, int, | |
54 | S_IRUGO | S_IWUSR); | |
55 | MODULE_PARM_DESC(debug_session, | |
56 | "Turn on debugging for sessions in scsi_transport_iscsi " | |
57 | "module. Set to 1 to turn on, and zero to turn off. Default " | |
58 | "is off."); | |
59 | ||
60 | static int dbg_conn; | |
61 | module_param_named(debug_conn, dbg_conn, int, | |
62 | S_IRUGO | S_IWUSR); | |
63 | MODULE_PARM_DESC(debug_conn, | |
64 | "Turn on debugging for connections in scsi_transport_iscsi " | |
65 | "module. Set to 1 to turn on, and zero to turn off. Default " | |
66 | "is off."); | |
67 | ||
68 | #define ISCSI_DBG_TRANS_SESSION(_session, dbg_fmt, arg...) \ | |
69 | do { \ | |
70 | if (dbg_session) \ | |
71 | iscsi_cls_session_printk(KERN_INFO, _session, \ | |
72 | "%s: " dbg_fmt, \ | |
73 | __func__, ##arg); \ | |
c2332b00 FH |
74 | iscsi_dbg_trace(trace_iscsi_dbg_trans_session, \ |
75 | &(_session)->dev, \ | |
76 | "%s " dbg_fmt, __func__, ##arg); \ | |
632248aa MC |
77 | } while (0); |
78 | ||
79 | #define ISCSI_DBG_TRANS_CONN(_conn, dbg_fmt, arg...) \ | |
80 | do { \ | |
81 | if (dbg_conn) \ | |
82 | iscsi_cls_conn_printk(KERN_INFO, _conn, \ | |
83 | "%s: " dbg_fmt, \ | |
c2332b00 FH |
84 | __func__, ##arg); \ |
85 | iscsi_dbg_trace(trace_iscsi_dbg_trans_conn, \ | |
86 | &(_conn)->dev, \ | |
87 | "%s " dbg_fmt, __func__, ##arg); \ | |
632248aa MC |
88 | } while (0); |
89 | ||
1da177e4 LT |
90 | struct iscsi_internal { |
91 | struct scsi_transport_template t; | |
0896b752 AA |
92 | struct iscsi_transport *iscsi_transport; |
93 | struct list_head list; | |
ee959b00 | 94 | struct device dev; |
30a6c652 | 95 | |
0896b752 | 96 | struct transport_container conn_cont; |
0896b752 | 97 | struct transport_container session_cont; |
1da177e4 LT |
98 | }; |
99 | ||
41be1444 | 100 | static atomic_t iscsi_session_nr; /* sysfs session id for next new session */ |
d8bf541e | 101 | static struct workqueue_struct *iscsi_eh_timer_workq; |
b5c7a12d | 102 | |
8d4a690c | 103 | static DEFINE_IDA(iscsi_sess_ida); |
0896b752 AA |
104 | /* |
105 | * list of registered transports and lock that must | |
106 | * be held while accessing list. The iscsi_transport_lock must | |
0b950672 | 107 | * be acquired after the rx_queue_mutex. |
0896b752 AA |
108 | */ |
109 | static LIST_HEAD(iscsi_transports); | |
110 | static DEFINE_SPINLOCK(iscsi_transport_lock); | |
111 | ||
112 | #define to_iscsi_internal(tmpl) \ | |
113 | container_of(tmpl, struct iscsi_internal, t) | |
114 | ||
ee959b00 TJ |
115 | #define dev_to_iscsi_internal(_dev) \ |
116 | container_of(_dev, struct iscsi_internal, dev) | |
0896b752 | 117 | |
ee959b00 | 118 | static void iscsi_transport_release(struct device *dev) |
0896b752 | 119 | { |
ee959b00 | 120 | struct iscsi_internal *priv = dev_to_iscsi_internal(dev); |
0896b752 AA |
121 | kfree(priv); |
122 | } | |
1da177e4 | 123 | |
0896b752 AA |
124 | /* |
125 | * iscsi_transport_class represents the iscsi_transports that are | |
126 | * registered. | |
127 | */ | |
128 | static struct class iscsi_transport_class = { | |
129 | .name = "iscsi_transport", | |
ee959b00 | 130 | .dev_release = iscsi_transport_release, |
0896b752 AA |
131 | }; |
132 | ||
133 | static ssize_t | |
ee959b00 TJ |
134 | show_transport_handle(struct device *dev, struct device_attribute *attr, |
135 | char *buf) | |
0896b752 | 136 | { |
ee959b00 | 137 | struct iscsi_internal *priv = dev_to_iscsi_internal(dev); |
762e2bfa | 138 | return sprintf(buf, "%llu\n", (unsigned long long)iscsi_handle(priv->iscsi_transport)); |
0896b752 | 139 | } |
ee959b00 | 140 | static DEVICE_ATTR(handle, S_IRUGO, show_transport_handle, NULL); |
0896b752 AA |
141 | |
142 | #define show_transport_attr(name, format) \ | |
143 | static ssize_t \ | |
ee959b00 TJ |
144 | show_transport_##name(struct device *dev, \ |
145 | struct device_attribute *attr,char *buf) \ | |
0896b752 | 146 | { \ |
ee959b00 | 147 | struct iscsi_internal *priv = dev_to_iscsi_internal(dev); \ |
0896b752 AA |
148 | return sprintf(buf, format"\n", priv->iscsi_transport->name); \ |
149 | } \ | |
ee959b00 | 150 | static DEVICE_ATTR(name, S_IRUGO, show_transport_##name, NULL); |
0896b752 AA |
151 | |
152 | show_transport_attr(caps, "0x%x"); | |
0896b752 AA |
153 | |
154 | static struct attribute *iscsi_transport_attrs[] = { | |
ee959b00 TJ |
155 | &dev_attr_handle.attr, |
156 | &dev_attr_caps.attr, | |
0896b752 AA |
157 | NULL, |
158 | }; | |
159 | ||
160 | static struct attribute_group iscsi_transport_group = { | |
161 | .attrs = iscsi_transport_attrs, | |
162 | }; | |
163 | ||
d82ff9be MC |
164 | /* |
165 | * iSCSI endpoint attrs | |
166 | */ | |
167 | #define iscsi_dev_to_endpoint(_dev) \ | |
168 | container_of(_dev, struct iscsi_endpoint, dev) | |
169 | ||
170 | #define ISCSI_ATTR(_prefix,_name,_mode,_show,_store) \ | |
171 | struct device_attribute dev_attr_##_prefix##_##_name = \ | |
172 | __ATTR(_name,_mode,_show,_store) | |
173 | ||
174 | static void iscsi_endpoint_release(struct device *dev) | |
175 | { | |
176 | struct iscsi_endpoint *ep = iscsi_dev_to_endpoint(dev); | |
177 | kfree(ep); | |
178 | } | |
179 | ||
180 | static struct class iscsi_endpoint_class = { | |
181 | .name = "iscsi_endpoint", | |
182 | .dev_release = iscsi_endpoint_release, | |
183 | }; | |
184 | ||
185 | static ssize_t | |
186 | show_ep_handle(struct device *dev, struct device_attribute *attr, char *buf) | |
187 | { | |
188 | struct iscsi_endpoint *ep = iscsi_dev_to_endpoint(dev); | |
21536062 | 189 | return sprintf(buf, "%llu\n", (unsigned long long) ep->id); |
d82ff9be MC |
190 | } |
191 | static ISCSI_ATTR(ep, handle, S_IRUGO, show_ep_handle, NULL); | |
192 | ||
193 | static struct attribute *iscsi_endpoint_attrs[] = { | |
194 | &dev_attr_ep_handle.attr, | |
195 | NULL, | |
196 | }; | |
197 | ||
198 | static struct attribute_group iscsi_endpoint_group = { | |
199 | .attrs = iscsi_endpoint_attrs, | |
200 | }; | |
201 | ||
202 | #define ISCSI_MAX_EPID -1 | |
203 | ||
9f3b795a | 204 | static int iscsi_match_epid(struct device *dev, const void *data) |
d82ff9be MC |
205 | { |
206 | struct iscsi_endpoint *ep = iscsi_dev_to_endpoint(dev); | |
9f3b795a | 207 | const uint64_t *epid = data; |
d82ff9be MC |
208 | |
209 | return *epid == ep->id; | |
210 | } | |
211 | ||
212 | struct iscsi_endpoint * | |
213 | iscsi_create_endpoint(int dd_size) | |
214 | { | |
215 | struct device *dev; | |
216 | struct iscsi_endpoint *ep; | |
21536062 | 217 | uint64_t id; |
d82ff9be MC |
218 | int err; |
219 | ||
220 | for (id = 1; id < ISCSI_MAX_EPID; id++) { | |
695794ae | 221 | dev = class_find_device(&iscsi_endpoint_class, NULL, &id, |
d82ff9be MC |
222 | iscsi_match_epid); |
223 | if (!dev) | |
224 | break; | |
4ce30874 SG |
225 | else |
226 | put_device(dev); | |
d82ff9be MC |
227 | } |
228 | if (id == ISCSI_MAX_EPID) { | |
229 | printk(KERN_ERR "Too many connections. Max supported %u\n", | |
230 | ISCSI_MAX_EPID - 1); | |
231 | return NULL; | |
232 | } | |
233 | ||
234 | ep = kzalloc(sizeof(*ep) + dd_size, GFP_KERNEL); | |
235 | if (!ep) | |
236 | return NULL; | |
237 | ||
238 | ep->id = id; | |
239 | ep->dev.class = &iscsi_endpoint_class; | |
71610f55 | 240 | dev_set_name(&ep->dev, "ep-%llu", (unsigned long long) id); |
d82ff9be MC |
241 | err = device_register(&ep->dev); |
242 | if (err) | |
243 | goto free_ep; | |
244 | ||
245 | err = sysfs_create_group(&ep->dev.kobj, &iscsi_endpoint_group); | |
246 | if (err) | |
247 | goto unregister_dev; | |
248 | ||
249 | if (dd_size) | |
250 | ep->dd_data = &ep[1]; | |
251 | return ep; | |
252 | ||
253 | unregister_dev: | |
254 | device_unregister(&ep->dev); | |
255 | return NULL; | |
256 | ||
257 | free_ep: | |
258 | kfree(ep); | |
259 | return NULL; | |
260 | } | |
261 | EXPORT_SYMBOL_GPL(iscsi_create_endpoint); | |
262 | ||
263 | void iscsi_destroy_endpoint(struct iscsi_endpoint *ep) | |
264 | { | |
265 | sysfs_remove_group(&ep->dev.kobj, &iscsi_endpoint_group); | |
266 | device_unregister(&ep->dev); | |
267 | } | |
268 | EXPORT_SYMBOL_GPL(iscsi_destroy_endpoint); | |
269 | ||
270 | struct iscsi_endpoint *iscsi_lookup_endpoint(u64 handle) | |
271 | { | |
f80f868e | 272 | struct iscsi_endpoint *ep; |
d82ff9be MC |
273 | struct device *dev; |
274 | ||
695794ae | 275 | dev = class_find_device(&iscsi_endpoint_class, NULL, &handle, |
d82ff9be MC |
276 | iscsi_match_epid); |
277 | if (!dev) | |
278 | return NULL; | |
279 | ||
f80f868e MC |
280 | ep = iscsi_dev_to_endpoint(dev); |
281 | /* | |
282 | * we can drop this now because the interface will prevent | |
283 | * removals and lookups from racing. | |
284 | */ | |
285 | put_device(dev); | |
286 | return ep; | |
d82ff9be MC |
287 | } |
288 | EXPORT_SYMBOL_GPL(iscsi_lookup_endpoint); | |
289 | ||
8d07913d MC |
290 | /* |
291 | * Interface to display network param to sysfs | |
292 | */ | |
293 | ||
294 | static void iscsi_iface_release(struct device *dev) | |
295 | { | |
296 | struct iscsi_iface *iface = iscsi_dev_to_iface(dev); | |
297 | struct device *parent = iface->dev.parent; | |
298 | ||
299 | kfree(iface); | |
300 | put_device(parent); | |
301 | } | |
302 | ||
303 | ||
304 | static struct class iscsi_iface_class = { | |
305 | .name = "iscsi_iface", | |
306 | .dev_release = iscsi_iface_release, | |
307 | }; | |
308 | ||
309 | #define ISCSI_IFACE_ATTR(_prefix, _name, _mode, _show, _store) \ | |
310 | struct device_attribute dev_attr_##_prefix##_##_name = \ | |
311 | __ATTR(_name, _mode, _show, _store) | |
312 | ||
313 | /* iface attrs show */ | |
314 | #define iscsi_iface_attr_show(type, name, param_type, param) \ | |
315 | static ssize_t \ | |
316 | show_##type##_##name(struct device *dev, struct device_attribute *attr, \ | |
317 | char *buf) \ | |
318 | { \ | |
319 | struct iscsi_iface *iface = iscsi_dev_to_iface(dev); \ | |
320 | struct iscsi_transport *t = iface->transport; \ | |
321 | return t->get_iface_param(iface, param_type, param, buf); \ | |
322 | } \ | |
323 | ||
324 | #define iscsi_iface_net_attr(type, name, param) \ | |
325 | iscsi_iface_attr_show(type, name, ISCSI_NET_PARAM, param) \ | |
326 | static ISCSI_IFACE_ATTR(type, name, S_IRUGO, show_##type##_##name, NULL); | |
327 | ||
3e0f65b3 HZ |
328 | #define iscsi_iface_attr(type, name, param) \ |
329 | iscsi_iface_attr_show(type, name, ISCSI_IFACE_PARAM, param) \ | |
330 | static ISCSI_IFACE_ATTR(type, name, S_IRUGO, show_##type##_##name, NULL); | |
331 | ||
332 | /* generic read only ipv4 attribute */ | |
8d07913d MC |
333 | iscsi_iface_net_attr(ipv4_iface, ipaddress, ISCSI_NET_PARAM_IPV4_ADDR); |
334 | iscsi_iface_net_attr(ipv4_iface, gateway, ISCSI_NET_PARAM_IPV4_GW); | |
335 | iscsi_iface_net_attr(ipv4_iface, subnet, ISCSI_NET_PARAM_IPV4_SUBNET); | |
336 | iscsi_iface_net_attr(ipv4_iface, bootproto, ISCSI_NET_PARAM_IPV4_BOOTPROTO); | |
3e0f65b3 HZ |
337 | iscsi_iface_net_attr(ipv4_iface, dhcp_dns_address_en, |
338 | ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN); | |
339 | iscsi_iface_net_attr(ipv4_iface, dhcp_slp_da_info_en, | |
340 | ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN); | |
341 | iscsi_iface_net_attr(ipv4_iface, tos_en, ISCSI_NET_PARAM_IPV4_TOS_EN); | |
342 | iscsi_iface_net_attr(ipv4_iface, tos, ISCSI_NET_PARAM_IPV4_TOS); | |
343 | iscsi_iface_net_attr(ipv4_iface, grat_arp_en, | |
344 | ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN); | |
345 | iscsi_iface_net_attr(ipv4_iface, dhcp_alt_client_id_en, | |
346 | ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN); | |
347 | iscsi_iface_net_attr(ipv4_iface, dhcp_alt_client_id, | |
348 | ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID); | |
349 | iscsi_iface_net_attr(ipv4_iface, dhcp_req_vendor_id_en, | |
350 | ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN); | |
351 | iscsi_iface_net_attr(ipv4_iface, dhcp_use_vendor_id_en, | |
352 | ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN); | |
353 | iscsi_iface_net_attr(ipv4_iface, dhcp_vendor_id, | |
354 | ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID); | |
355 | iscsi_iface_net_attr(ipv4_iface, dhcp_learn_iqn_en, | |
356 | ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN); | |
357 | iscsi_iface_net_attr(ipv4_iface, fragment_disable, | |
358 | ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE); | |
359 | iscsi_iface_net_attr(ipv4_iface, incoming_forwarding_en, | |
360 | ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN); | |
361 | iscsi_iface_net_attr(ipv4_iface, ttl, ISCSI_NET_PARAM_IPV4_TTL); | |
8d07913d MC |
362 | |
363 | /* generic read only ipv6 attribute */ | |
364 | iscsi_iface_net_attr(ipv6_iface, ipaddress, ISCSI_NET_PARAM_IPV6_ADDR); | |
3e0f65b3 HZ |
365 | iscsi_iface_net_attr(ipv6_iface, link_local_addr, |
366 | ISCSI_NET_PARAM_IPV6_LINKLOCAL); | |
8d07913d MC |
367 | iscsi_iface_net_attr(ipv6_iface, router_addr, ISCSI_NET_PARAM_IPV6_ROUTER); |
368 | iscsi_iface_net_attr(ipv6_iface, ipaddr_autocfg, | |
369 | ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG); | |
88f4f517 | 370 | iscsi_iface_net_attr(ipv6_iface, link_local_autocfg, |
8d07913d | 371 | ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG); |
3e0f65b3 HZ |
372 | iscsi_iface_net_attr(ipv6_iface, link_local_state, |
373 | ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE); | |
374 | iscsi_iface_net_attr(ipv6_iface, router_state, | |
375 | ISCSI_NET_PARAM_IPV6_ROUTER_STATE); | |
376 | iscsi_iface_net_attr(ipv6_iface, grat_neighbor_adv_en, | |
377 | ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN); | |
378 | iscsi_iface_net_attr(ipv6_iface, mld_en, ISCSI_NET_PARAM_IPV6_MLD_EN); | |
379 | iscsi_iface_net_attr(ipv6_iface, flow_label, ISCSI_NET_PARAM_IPV6_FLOW_LABEL); | |
380 | iscsi_iface_net_attr(ipv6_iface, traffic_class, | |
381 | ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS); | |
382 | iscsi_iface_net_attr(ipv6_iface, hop_limit, ISCSI_NET_PARAM_IPV6_HOP_LIMIT); | |
383 | iscsi_iface_net_attr(ipv6_iface, nd_reachable_tmo, | |
384 | ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO); | |
385 | iscsi_iface_net_attr(ipv6_iface, nd_rexmit_time, | |
386 | ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME); | |
387 | iscsi_iface_net_attr(ipv6_iface, nd_stale_tmo, | |
388 | ISCSI_NET_PARAM_IPV6_ND_STALE_TMO); | |
389 | iscsi_iface_net_attr(ipv6_iface, dup_addr_detect_cnt, | |
390 | ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT); | |
391 | iscsi_iface_net_attr(ipv6_iface, router_adv_link_mtu, | |
392 | ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU); | |
8d07913d MC |
393 | |
394 | /* common read only iface attribute */ | |
395 | iscsi_iface_net_attr(iface, enabled, ISCSI_NET_PARAM_IFACE_ENABLE); | |
2d63673b | 396 | iscsi_iface_net_attr(iface, vlan_id, ISCSI_NET_PARAM_VLAN_ID); |
4223b9e9 MC |
397 | iscsi_iface_net_attr(iface, vlan_priority, ISCSI_NET_PARAM_VLAN_PRIORITY); |
398 | iscsi_iface_net_attr(iface, vlan_enabled, ISCSI_NET_PARAM_VLAN_ENABLED); | |
8c7d40fb | 399 | iscsi_iface_net_attr(iface, mtu, ISCSI_NET_PARAM_MTU); |
fcb5124e | 400 | iscsi_iface_net_attr(iface, port, ISCSI_NET_PARAM_PORT); |
3e0f65b3 HZ |
401 | iscsi_iface_net_attr(iface, ipaddress_state, ISCSI_NET_PARAM_IPADDR_STATE); |
402 | iscsi_iface_net_attr(iface, delayed_ack_en, ISCSI_NET_PARAM_DELAYED_ACK_EN); | |
403 | iscsi_iface_net_attr(iface, tcp_nagle_disable, | |
404 | ISCSI_NET_PARAM_TCP_NAGLE_DISABLE); | |
405 | iscsi_iface_net_attr(iface, tcp_wsf_disable, ISCSI_NET_PARAM_TCP_WSF_DISABLE); | |
406 | iscsi_iface_net_attr(iface, tcp_wsf, ISCSI_NET_PARAM_TCP_WSF); | |
407 | iscsi_iface_net_attr(iface, tcp_timer_scale, ISCSI_NET_PARAM_TCP_TIMER_SCALE); | |
408 | iscsi_iface_net_attr(iface, tcp_timestamp_en, ISCSI_NET_PARAM_TCP_TIMESTAMP_EN); | |
409 | iscsi_iface_net_attr(iface, cache_id, ISCSI_NET_PARAM_CACHE_ID); | |
410 | iscsi_iface_net_attr(iface, redirect_en, ISCSI_NET_PARAM_REDIRECT_EN); | |
411 | ||
412 | /* common iscsi specific settings attributes */ | |
413 | iscsi_iface_attr(iface, def_taskmgmt_tmo, ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO); | |
414 | iscsi_iface_attr(iface, header_digest, ISCSI_IFACE_PARAM_HDRDGST_EN); | |
415 | iscsi_iface_attr(iface, data_digest, ISCSI_IFACE_PARAM_DATADGST_EN); | |
416 | iscsi_iface_attr(iface, immediate_data, ISCSI_IFACE_PARAM_IMM_DATA_EN); | |
417 | iscsi_iface_attr(iface, initial_r2t, ISCSI_IFACE_PARAM_INITIAL_R2T_EN); | |
418 | iscsi_iface_attr(iface, data_seq_in_order, | |
419 | ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN); | |
420 | iscsi_iface_attr(iface, data_pdu_in_order, ISCSI_IFACE_PARAM_PDU_INORDER_EN); | |
421 | iscsi_iface_attr(iface, erl, ISCSI_IFACE_PARAM_ERL); | |
422 | iscsi_iface_attr(iface, max_recv_dlength, ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH); | |
423 | iscsi_iface_attr(iface, first_burst_len, ISCSI_IFACE_PARAM_FIRST_BURST); | |
424 | iscsi_iface_attr(iface, max_outstanding_r2t, ISCSI_IFACE_PARAM_MAX_R2T); | |
425 | iscsi_iface_attr(iface, max_burst_len, ISCSI_IFACE_PARAM_MAX_BURST); | |
426 | iscsi_iface_attr(iface, chap_auth, ISCSI_IFACE_PARAM_CHAP_AUTH_EN); | |
427 | iscsi_iface_attr(iface, bidi_chap, ISCSI_IFACE_PARAM_BIDI_CHAP_EN); | |
428 | iscsi_iface_attr(iface, discovery_auth_optional, | |
429 | ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL); | |
430 | iscsi_iface_attr(iface, discovery_logout, | |
431 | ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN); | |
432 | iscsi_iface_attr(iface, strict_login_comp_en, | |
433 | ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN); | |
434 | iscsi_iface_attr(iface, initiator_name, ISCSI_IFACE_PARAM_INITIATOR_NAME); | |
8d07913d | 435 | |
587a1f16 | 436 | static umode_t iscsi_iface_attr_is_visible(struct kobject *kobj, |
8d07913d MC |
437 | struct attribute *attr, int i) |
438 | { | |
439 | struct device *dev = container_of(kobj, struct device, kobj); | |
440 | struct iscsi_iface *iface = iscsi_dev_to_iface(dev); | |
441 | struct iscsi_transport *t = iface->transport; | |
b78dbba0 | 442 | int param; |
3e0f65b3 | 443 | int param_type; |
8d07913d MC |
444 | |
445 | if (attr == &dev_attr_iface_enabled.attr) | |
b78dbba0 | 446 | param = ISCSI_NET_PARAM_IFACE_ENABLE; |
2d63673b | 447 | else if (attr == &dev_attr_iface_vlan_id.attr) |
b78dbba0 | 448 | param = ISCSI_NET_PARAM_VLAN_ID; |
4223b9e9 MC |
449 | else if (attr == &dev_attr_iface_vlan_priority.attr) |
450 | param = ISCSI_NET_PARAM_VLAN_PRIORITY; | |
451 | else if (attr == &dev_attr_iface_vlan_enabled.attr) | |
452 | param = ISCSI_NET_PARAM_VLAN_ENABLED; | |
8c7d40fb VC |
453 | else if (attr == &dev_attr_iface_mtu.attr) |
454 | param = ISCSI_NET_PARAM_MTU; | |
fcb5124e VC |
455 | else if (attr == &dev_attr_iface_port.attr) |
456 | param = ISCSI_NET_PARAM_PORT; | |
3e0f65b3 HZ |
457 | else if (attr == &dev_attr_iface_ipaddress_state.attr) |
458 | param = ISCSI_NET_PARAM_IPADDR_STATE; | |
459 | else if (attr == &dev_attr_iface_delayed_ack_en.attr) | |
460 | param = ISCSI_NET_PARAM_DELAYED_ACK_EN; | |
461 | else if (attr == &dev_attr_iface_tcp_nagle_disable.attr) | |
462 | param = ISCSI_NET_PARAM_TCP_NAGLE_DISABLE; | |
463 | else if (attr == &dev_attr_iface_tcp_wsf_disable.attr) | |
464 | param = ISCSI_NET_PARAM_TCP_WSF_DISABLE; | |
465 | else if (attr == &dev_attr_iface_tcp_wsf.attr) | |
466 | param = ISCSI_NET_PARAM_TCP_WSF; | |
467 | else if (attr == &dev_attr_iface_tcp_timer_scale.attr) | |
468 | param = ISCSI_NET_PARAM_TCP_TIMER_SCALE; | |
469 | else if (attr == &dev_attr_iface_tcp_timestamp_en.attr) | |
470 | param = ISCSI_NET_PARAM_TCP_TIMESTAMP_EN; | |
471 | else if (attr == &dev_attr_iface_cache_id.attr) | |
472 | param = ISCSI_NET_PARAM_CACHE_ID; | |
473 | else if (attr == &dev_attr_iface_redirect_en.attr) | |
474 | param = ISCSI_NET_PARAM_REDIRECT_EN; | |
475 | else if (attr == &dev_attr_iface_def_taskmgmt_tmo.attr) | |
476 | param = ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO; | |
477 | else if (attr == &dev_attr_iface_header_digest.attr) | |
478 | param = ISCSI_IFACE_PARAM_HDRDGST_EN; | |
479 | else if (attr == &dev_attr_iface_data_digest.attr) | |
480 | param = ISCSI_IFACE_PARAM_DATADGST_EN; | |
481 | else if (attr == &dev_attr_iface_immediate_data.attr) | |
482 | param = ISCSI_IFACE_PARAM_IMM_DATA_EN; | |
483 | else if (attr == &dev_attr_iface_initial_r2t.attr) | |
484 | param = ISCSI_IFACE_PARAM_INITIAL_R2T_EN; | |
485 | else if (attr == &dev_attr_iface_data_seq_in_order.attr) | |
486 | param = ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN; | |
487 | else if (attr == &dev_attr_iface_data_pdu_in_order.attr) | |
488 | param = ISCSI_IFACE_PARAM_PDU_INORDER_EN; | |
489 | else if (attr == &dev_attr_iface_erl.attr) | |
490 | param = ISCSI_IFACE_PARAM_ERL; | |
491 | else if (attr == &dev_attr_iface_max_recv_dlength.attr) | |
492 | param = ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH; | |
493 | else if (attr == &dev_attr_iface_first_burst_len.attr) | |
494 | param = ISCSI_IFACE_PARAM_FIRST_BURST; | |
495 | else if (attr == &dev_attr_iface_max_outstanding_r2t.attr) | |
496 | param = ISCSI_IFACE_PARAM_MAX_R2T; | |
497 | else if (attr == &dev_attr_iface_max_burst_len.attr) | |
498 | param = ISCSI_IFACE_PARAM_MAX_BURST; | |
499 | else if (attr == &dev_attr_iface_chap_auth.attr) | |
500 | param = ISCSI_IFACE_PARAM_CHAP_AUTH_EN; | |
501 | else if (attr == &dev_attr_iface_bidi_chap.attr) | |
502 | param = ISCSI_IFACE_PARAM_BIDI_CHAP_EN; | |
503 | else if (attr == &dev_attr_iface_discovery_auth_optional.attr) | |
504 | param = ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL; | |
505 | else if (attr == &dev_attr_iface_discovery_logout.attr) | |
506 | param = ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN; | |
507 | else if (attr == &dev_attr_iface_strict_login_comp_en.attr) | |
508 | param = ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN; | |
509 | else if (attr == &dev_attr_iface_initiator_name.attr) | |
510 | param = ISCSI_IFACE_PARAM_INITIATOR_NAME; | |
b78dbba0 | 511 | else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { |
8d07913d | 512 | if (attr == &dev_attr_ipv4_iface_ipaddress.attr) |
b78dbba0 | 513 | param = ISCSI_NET_PARAM_IPV4_ADDR; |
8d07913d | 514 | else if (attr == &dev_attr_ipv4_iface_gateway.attr) |
b78dbba0 | 515 | param = ISCSI_NET_PARAM_IPV4_GW; |
8d07913d | 516 | else if (attr == &dev_attr_ipv4_iface_subnet.attr) |
b78dbba0 | 517 | param = ISCSI_NET_PARAM_IPV4_SUBNET; |
8d07913d | 518 | else if (attr == &dev_attr_ipv4_iface_bootproto.attr) |
b78dbba0 | 519 | param = ISCSI_NET_PARAM_IPV4_BOOTPROTO; |
3e0f65b3 HZ |
520 | else if (attr == |
521 | &dev_attr_ipv4_iface_dhcp_dns_address_en.attr) | |
522 | param = ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN; | |
523 | else if (attr == | |
524 | &dev_attr_ipv4_iface_dhcp_slp_da_info_en.attr) | |
525 | param = ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN; | |
526 | else if (attr == &dev_attr_ipv4_iface_tos_en.attr) | |
527 | param = ISCSI_NET_PARAM_IPV4_TOS_EN; | |
528 | else if (attr == &dev_attr_ipv4_iface_tos.attr) | |
529 | param = ISCSI_NET_PARAM_IPV4_TOS; | |
530 | else if (attr == &dev_attr_ipv4_iface_grat_arp_en.attr) | |
531 | param = ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN; | |
532 | else if (attr == | |
533 | &dev_attr_ipv4_iface_dhcp_alt_client_id_en.attr) | |
534 | param = ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN; | |
535 | else if (attr == &dev_attr_ipv4_iface_dhcp_alt_client_id.attr) | |
536 | param = ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID; | |
537 | else if (attr == | |
538 | &dev_attr_ipv4_iface_dhcp_req_vendor_id_en.attr) | |
539 | param = ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN; | |
540 | else if (attr == | |
541 | &dev_attr_ipv4_iface_dhcp_use_vendor_id_en.attr) | |
542 | param = ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN; | |
543 | else if (attr == &dev_attr_ipv4_iface_dhcp_vendor_id.attr) | |
544 | param = ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID; | |
545 | else if (attr == | |
546 | &dev_attr_ipv4_iface_dhcp_learn_iqn_en.attr) | |
547 | param = ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN; | |
548 | else if (attr == | |
549 | &dev_attr_ipv4_iface_fragment_disable.attr) | |
550 | param = ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE; | |
551 | else if (attr == | |
552 | &dev_attr_ipv4_iface_incoming_forwarding_en.attr) | |
553 | param = ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN; | |
554 | else if (attr == &dev_attr_ipv4_iface_ttl.attr) | |
555 | param = ISCSI_NET_PARAM_IPV4_TTL; | |
b78dbba0 MC |
556 | else |
557 | return 0; | |
8d07913d MC |
558 | } else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) { |
559 | if (attr == &dev_attr_ipv6_iface_ipaddress.attr) | |
b78dbba0 | 560 | param = ISCSI_NET_PARAM_IPV6_ADDR; |
8d07913d | 561 | else if (attr == &dev_attr_ipv6_iface_link_local_addr.attr) |
b78dbba0 | 562 | param = ISCSI_NET_PARAM_IPV6_LINKLOCAL; |
8d07913d | 563 | else if (attr == &dev_attr_ipv6_iface_router_addr.attr) |
b78dbba0 | 564 | param = ISCSI_NET_PARAM_IPV6_ROUTER; |
8d07913d | 565 | else if (attr == &dev_attr_ipv6_iface_ipaddr_autocfg.attr) |
b78dbba0 | 566 | param = ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG; |
88f4f517 | 567 | else if (attr == &dev_attr_ipv6_iface_link_local_autocfg.attr) |
b78dbba0 | 568 | param = ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG; |
3e0f65b3 HZ |
569 | else if (attr == &dev_attr_ipv6_iface_link_local_state.attr) |
570 | param = ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE; | |
571 | else if (attr == &dev_attr_ipv6_iface_router_state.attr) | |
572 | param = ISCSI_NET_PARAM_IPV6_ROUTER_STATE; | |
573 | else if (attr == | |
574 | &dev_attr_ipv6_iface_grat_neighbor_adv_en.attr) | |
575 | param = ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN; | |
576 | else if (attr == &dev_attr_ipv6_iface_mld_en.attr) | |
577 | param = ISCSI_NET_PARAM_IPV6_MLD_EN; | |
578 | else if (attr == &dev_attr_ipv6_iface_flow_label.attr) | |
579 | param = ISCSI_NET_PARAM_IPV6_FLOW_LABEL; | |
580 | else if (attr == &dev_attr_ipv6_iface_traffic_class.attr) | |
581 | param = ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS; | |
582 | else if (attr == &dev_attr_ipv6_iface_hop_limit.attr) | |
583 | param = ISCSI_NET_PARAM_IPV6_HOP_LIMIT; | |
584 | else if (attr == &dev_attr_ipv6_iface_nd_reachable_tmo.attr) | |
585 | param = ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO; | |
586 | else if (attr == &dev_attr_ipv6_iface_nd_rexmit_time.attr) | |
587 | param = ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME; | |
588 | else if (attr == &dev_attr_ipv6_iface_nd_stale_tmo.attr) | |
589 | param = ISCSI_NET_PARAM_IPV6_ND_STALE_TMO; | |
590 | else if (attr == &dev_attr_ipv6_iface_dup_addr_detect_cnt.attr) | |
591 | param = ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT; | |
592 | else if (attr == &dev_attr_ipv6_iface_router_adv_link_mtu.attr) | |
593 | param = ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU; | |
b78dbba0 MC |
594 | else |
595 | return 0; | |
596 | } else { | |
597 | WARN_ONCE(1, "Invalid iface attr"); | |
598 | return 0; | |
8d07913d MC |
599 | } |
600 | ||
3e0f65b3 HZ |
601 | switch (param) { |
602 | case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO: | |
603 | case ISCSI_IFACE_PARAM_HDRDGST_EN: | |
604 | case ISCSI_IFACE_PARAM_DATADGST_EN: | |
605 | case ISCSI_IFACE_PARAM_IMM_DATA_EN: | |
606 | case ISCSI_IFACE_PARAM_INITIAL_R2T_EN: | |
607 | case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN: | |
608 | case ISCSI_IFACE_PARAM_PDU_INORDER_EN: | |
609 | case ISCSI_IFACE_PARAM_ERL: | |
610 | case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH: | |
611 | case ISCSI_IFACE_PARAM_FIRST_BURST: | |
612 | case ISCSI_IFACE_PARAM_MAX_R2T: | |
613 | case ISCSI_IFACE_PARAM_MAX_BURST: | |
614 | case ISCSI_IFACE_PARAM_CHAP_AUTH_EN: | |
615 | case ISCSI_IFACE_PARAM_BIDI_CHAP_EN: | |
616 | case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL: | |
617 | case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN: | |
618 | case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN: | |
619 | case ISCSI_IFACE_PARAM_INITIATOR_NAME: | |
620 | param_type = ISCSI_IFACE_PARAM; | |
621 | break; | |
622 | default: | |
623 | param_type = ISCSI_NET_PARAM; | |
624 | } | |
625 | ||
626 | return t->attr_is_visible(param_type, param); | |
8d07913d MC |
627 | } |
628 | ||
629 | static struct attribute *iscsi_iface_attrs[] = { | |
630 | &dev_attr_iface_enabled.attr, | |
2d63673b | 631 | &dev_attr_iface_vlan_id.attr, |
4223b9e9 MC |
632 | &dev_attr_iface_vlan_priority.attr, |
633 | &dev_attr_iface_vlan_enabled.attr, | |
8d07913d MC |
634 | &dev_attr_ipv4_iface_ipaddress.attr, |
635 | &dev_attr_ipv4_iface_gateway.attr, | |
636 | &dev_attr_ipv4_iface_subnet.attr, | |
637 | &dev_attr_ipv4_iface_bootproto.attr, | |
638 | &dev_attr_ipv6_iface_ipaddress.attr, | |
639 | &dev_attr_ipv6_iface_link_local_addr.attr, | |
640 | &dev_attr_ipv6_iface_router_addr.attr, | |
641 | &dev_attr_ipv6_iface_ipaddr_autocfg.attr, | |
88f4f517 | 642 | &dev_attr_ipv6_iface_link_local_autocfg.attr, |
8c7d40fb | 643 | &dev_attr_iface_mtu.attr, |
fcb5124e | 644 | &dev_attr_iface_port.attr, |
3e0f65b3 HZ |
645 | &dev_attr_iface_ipaddress_state.attr, |
646 | &dev_attr_iface_delayed_ack_en.attr, | |
647 | &dev_attr_iface_tcp_nagle_disable.attr, | |
648 | &dev_attr_iface_tcp_wsf_disable.attr, | |
649 | &dev_attr_iface_tcp_wsf.attr, | |
650 | &dev_attr_iface_tcp_timer_scale.attr, | |
651 | &dev_attr_iface_tcp_timestamp_en.attr, | |
652 | &dev_attr_iface_cache_id.attr, | |
653 | &dev_attr_iface_redirect_en.attr, | |
654 | &dev_attr_iface_def_taskmgmt_tmo.attr, | |
655 | &dev_attr_iface_header_digest.attr, | |
656 | &dev_attr_iface_data_digest.attr, | |
657 | &dev_attr_iface_immediate_data.attr, | |
658 | &dev_attr_iface_initial_r2t.attr, | |
659 | &dev_attr_iface_data_seq_in_order.attr, | |
660 | &dev_attr_iface_data_pdu_in_order.attr, | |
661 | &dev_attr_iface_erl.attr, | |
662 | &dev_attr_iface_max_recv_dlength.attr, | |
663 | &dev_attr_iface_first_burst_len.attr, | |
664 | &dev_attr_iface_max_outstanding_r2t.attr, | |
665 | &dev_attr_iface_max_burst_len.attr, | |
666 | &dev_attr_iface_chap_auth.attr, | |
667 | &dev_attr_iface_bidi_chap.attr, | |
668 | &dev_attr_iface_discovery_auth_optional.attr, | |
669 | &dev_attr_iface_discovery_logout.attr, | |
670 | &dev_attr_iface_strict_login_comp_en.attr, | |
671 | &dev_attr_iface_initiator_name.attr, | |
672 | &dev_attr_ipv4_iface_dhcp_dns_address_en.attr, | |
673 | &dev_attr_ipv4_iface_dhcp_slp_da_info_en.attr, | |
674 | &dev_attr_ipv4_iface_tos_en.attr, | |
675 | &dev_attr_ipv4_iface_tos.attr, | |
676 | &dev_attr_ipv4_iface_grat_arp_en.attr, | |
677 | &dev_attr_ipv4_iface_dhcp_alt_client_id_en.attr, | |
678 | &dev_attr_ipv4_iface_dhcp_alt_client_id.attr, | |
679 | &dev_attr_ipv4_iface_dhcp_req_vendor_id_en.attr, | |
680 | &dev_attr_ipv4_iface_dhcp_use_vendor_id_en.attr, | |
681 | &dev_attr_ipv4_iface_dhcp_vendor_id.attr, | |
682 | &dev_attr_ipv4_iface_dhcp_learn_iqn_en.attr, | |
683 | &dev_attr_ipv4_iface_fragment_disable.attr, | |
684 | &dev_attr_ipv4_iface_incoming_forwarding_en.attr, | |
685 | &dev_attr_ipv4_iface_ttl.attr, | |
686 | &dev_attr_ipv6_iface_link_local_state.attr, | |
687 | &dev_attr_ipv6_iface_router_state.attr, | |
688 | &dev_attr_ipv6_iface_grat_neighbor_adv_en.attr, | |
689 | &dev_attr_ipv6_iface_mld_en.attr, | |
690 | &dev_attr_ipv6_iface_flow_label.attr, | |
691 | &dev_attr_ipv6_iface_traffic_class.attr, | |
692 | &dev_attr_ipv6_iface_hop_limit.attr, | |
693 | &dev_attr_ipv6_iface_nd_reachable_tmo.attr, | |
694 | &dev_attr_ipv6_iface_nd_rexmit_time.attr, | |
695 | &dev_attr_ipv6_iface_nd_stale_tmo.attr, | |
696 | &dev_attr_ipv6_iface_dup_addr_detect_cnt.attr, | |
697 | &dev_attr_ipv6_iface_router_adv_link_mtu.attr, | |
8d07913d MC |
698 | NULL, |
699 | }; | |
700 | ||
701 | static struct attribute_group iscsi_iface_group = { | |
702 | .attrs = iscsi_iface_attrs, | |
703 | .is_visible = iscsi_iface_attr_is_visible, | |
704 | }; | |
705 | ||
3e0f65b3 HZ |
706 | /* convert iscsi_ipaddress_state values to ascii string name */ |
707 | static const struct { | |
708 | enum iscsi_ipaddress_state value; | |
709 | char *name; | |
710 | } iscsi_ipaddress_state_names[] = { | |
711 | {ISCSI_IPDDRESS_STATE_UNCONFIGURED, "Unconfigured" }, | |
712 | {ISCSI_IPDDRESS_STATE_ACQUIRING, "Acquiring" }, | |
713 | {ISCSI_IPDDRESS_STATE_TENTATIVE, "Tentative" }, | |
714 | {ISCSI_IPDDRESS_STATE_VALID, "Valid" }, | |
715 | {ISCSI_IPDDRESS_STATE_DISABLING, "Disabling" }, | |
716 | {ISCSI_IPDDRESS_STATE_INVALID, "Invalid" }, | |
717 | {ISCSI_IPDDRESS_STATE_DEPRECATED, "Deprecated" }, | |
718 | }; | |
719 | ||
720 | char *iscsi_get_ipaddress_state_name(enum iscsi_ipaddress_state port_state) | |
721 | { | |
722 | int i; | |
723 | char *state = NULL; | |
724 | ||
725 | for (i = 0; i < ARRAY_SIZE(iscsi_ipaddress_state_names); i++) { | |
726 | if (iscsi_ipaddress_state_names[i].value == port_state) { | |
727 | state = iscsi_ipaddress_state_names[i].name; | |
728 | break; | |
729 | } | |
730 | } | |
731 | return state; | |
732 | } | |
733 | EXPORT_SYMBOL_GPL(iscsi_get_ipaddress_state_name); | |
734 | ||
735 | /* convert iscsi_router_state values to ascii string name */ | |
736 | static const struct { | |
737 | enum iscsi_router_state value; | |
738 | char *name; | |
739 | } iscsi_router_state_names[] = { | |
740 | {ISCSI_ROUTER_STATE_UNKNOWN, "Unknown" }, | |
741 | {ISCSI_ROUTER_STATE_ADVERTISED, "Advertised" }, | |
742 | {ISCSI_ROUTER_STATE_MANUAL, "Manual" }, | |
743 | {ISCSI_ROUTER_STATE_STALE, "Stale" }, | |
744 | }; | |
745 | ||
746 | char *iscsi_get_router_state_name(enum iscsi_router_state router_state) | |
747 | { | |
748 | int i; | |
749 | char *state = NULL; | |
750 | ||
751 | for (i = 0; i < ARRAY_SIZE(iscsi_router_state_names); i++) { | |
752 | if (iscsi_router_state_names[i].value == router_state) { | |
753 | state = iscsi_router_state_names[i].name; | |
754 | break; | |
755 | } | |
756 | } | |
757 | return state; | |
758 | } | |
759 | EXPORT_SYMBOL_GPL(iscsi_get_router_state_name); | |
760 | ||
8d07913d MC |
761 | struct iscsi_iface * |
762 | iscsi_create_iface(struct Scsi_Host *shost, struct iscsi_transport *transport, | |
763 | uint32_t iface_type, uint32_t iface_num, int dd_size) | |
764 | { | |
765 | struct iscsi_iface *iface; | |
766 | int err; | |
767 | ||
768 | iface = kzalloc(sizeof(*iface) + dd_size, GFP_KERNEL); | |
769 | if (!iface) | |
770 | return NULL; | |
771 | ||
772 | iface->transport = transport; | |
773 | iface->iface_type = iface_type; | |
774 | iface->iface_num = iface_num; | |
775 | iface->dev.release = iscsi_iface_release; | |
776 | iface->dev.class = &iscsi_iface_class; | |
777 | /* parent reference released in iscsi_iface_release */ | |
778 | iface->dev.parent = get_device(&shost->shost_gendev); | |
779 | if (iface_type == ISCSI_IFACE_TYPE_IPV4) | |
780 | dev_set_name(&iface->dev, "ipv4-iface-%u-%u", shost->host_no, | |
781 | iface_num); | |
782 | else | |
783 | dev_set_name(&iface->dev, "ipv6-iface-%u-%u", shost->host_no, | |
784 | iface_num); | |
785 | ||
786 | err = device_register(&iface->dev); | |
787 | if (err) | |
788 | goto free_iface; | |
789 | ||
790 | err = sysfs_create_group(&iface->dev.kobj, &iscsi_iface_group); | |
791 | if (err) | |
792 | goto unreg_iface; | |
793 | ||
794 | if (dd_size) | |
795 | iface->dd_data = &iface[1]; | |
796 | return iface; | |
797 | ||
798 | unreg_iface: | |
799 | device_unregister(&iface->dev); | |
800 | return NULL; | |
801 | ||
802 | free_iface: | |
803 | put_device(iface->dev.parent); | |
804 | kfree(iface); | |
805 | return NULL; | |
806 | } | |
807 | EXPORT_SYMBOL_GPL(iscsi_create_iface); | |
808 | ||
809 | void iscsi_destroy_iface(struct iscsi_iface *iface) | |
810 | { | |
811 | sysfs_remove_group(&iface->dev.kobj, &iscsi_iface_group); | |
812 | device_unregister(&iface->dev); | |
813 | } | |
814 | EXPORT_SYMBOL_GPL(iscsi_destroy_iface); | |
815 | ||
c6a4bb2e AC |
816 | /* |
817 | * Interface to display flash node params to sysfs | |
818 | */ | |
819 | ||
820 | #define ISCSI_FLASHNODE_ATTR(_prefix, _name, _mode, _show, _store) \ | |
821 | struct device_attribute dev_attr_##_prefix##_##_name = \ | |
822 | __ATTR(_name, _mode, _show, _store) | |
823 | ||
824 | /* flash node session attrs show */ | |
825 | #define iscsi_flashnode_sess_attr_show(type, name, param) \ | |
826 | static ssize_t \ | |
827 | show_##type##_##name(struct device *dev, struct device_attribute *attr, \ | |
828 | char *buf) \ | |
829 | { \ | |
830 | struct iscsi_bus_flash_session *fnode_sess = \ | |
831 | iscsi_dev_to_flash_session(dev);\ | |
832 | struct iscsi_transport *t = fnode_sess->transport; \ | |
833 | return t->get_flashnode_param(fnode_sess, param, buf); \ | |
834 | } \ | |
835 | ||
836 | ||
837 | #define iscsi_flashnode_sess_attr(type, name, param) \ | |
838 | iscsi_flashnode_sess_attr_show(type, name, param) \ | |
839 | static ISCSI_FLASHNODE_ATTR(type, name, S_IRUGO, \ | |
840 | show_##type##_##name, NULL); | |
841 | ||
842 | /* Flash node session attributes */ | |
843 | ||
844 | iscsi_flashnode_sess_attr(fnode, auto_snd_tgt_disable, | |
845 | ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE); | |
846 | iscsi_flashnode_sess_attr(fnode, discovery_session, | |
847 | ISCSI_FLASHNODE_DISCOVERY_SESS); | |
848 | iscsi_flashnode_sess_attr(fnode, portal_type, ISCSI_FLASHNODE_PORTAL_TYPE); | |
849 | iscsi_flashnode_sess_attr(fnode, entry_enable, ISCSI_FLASHNODE_ENTRY_EN); | |
850 | iscsi_flashnode_sess_attr(fnode, immediate_data, ISCSI_FLASHNODE_IMM_DATA_EN); | |
851 | iscsi_flashnode_sess_attr(fnode, initial_r2t, ISCSI_FLASHNODE_INITIAL_R2T_EN); | |
852 | iscsi_flashnode_sess_attr(fnode, data_seq_in_order, | |
853 | ISCSI_FLASHNODE_DATASEQ_INORDER); | |
854 | iscsi_flashnode_sess_attr(fnode, data_pdu_in_order, | |
855 | ISCSI_FLASHNODE_PDU_INORDER); | |
856 | iscsi_flashnode_sess_attr(fnode, chap_auth, ISCSI_FLASHNODE_CHAP_AUTH_EN); | |
857 | iscsi_flashnode_sess_attr(fnode, discovery_logout, | |
858 | ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN); | |
859 | iscsi_flashnode_sess_attr(fnode, bidi_chap, ISCSI_FLASHNODE_BIDI_CHAP_EN); | |
860 | iscsi_flashnode_sess_attr(fnode, discovery_auth_optional, | |
861 | ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL); | |
862 | iscsi_flashnode_sess_attr(fnode, erl, ISCSI_FLASHNODE_ERL); | |
863 | iscsi_flashnode_sess_attr(fnode, first_burst_len, ISCSI_FLASHNODE_FIRST_BURST); | |
864 | iscsi_flashnode_sess_attr(fnode, def_time2wait, ISCSI_FLASHNODE_DEF_TIME2WAIT); | |
865 | iscsi_flashnode_sess_attr(fnode, def_time2retain, | |
866 | ISCSI_FLASHNODE_DEF_TIME2RETAIN); | |
867 | iscsi_flashnode_sess_attr(fnode, max_outstanding_r2t, ISCSI_FLASHNODE_MAX_R2T); | |
868 | iscsi_flashnode_sess_attr(fnode, isid, ISCSI_FLASHNODE_ISID); | |
869 | iscsi_flashnode_sess_attr(fnode, tsid, ISCSI_FLASHNODE_TSID); | |
870 | iscsi_flashnode_sess_attr(fnode, max_burst_len, ISCSI_FLASHNODE_MAX_BURST); | |
871 | iscsi_flashnode_sess_attr(fnode, def_taskmgmt_tmo, | |
872 | ISCSI_FLASHNODE_DEF_TASKMGMT_TMO); | |
873 | iscsi_flashnode_sess_attr(fnode, targetalias, ISCSI_FLASHNODE_ALIAS); | |
874 | iscsi_flashnode_sess_attr(fnode, targetname, ISCSI_FLASHNODE_NAME); | |
875 | iscsi_flashnode_sess_attr(fnode, tpgt, ISCSI_FLASHNODE_TPGT); | |
876 | iscsi_flashnode_sess_attr(fnode, discovery_parent_idx, | |
877 | ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX); | |
878 | iscsi_flashnode_sess_attr(fnode, discovery_parent_type, | |
879 | ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE); | |
880 | iscsi_flashnode_sess_attr(fnode, chap_in_idx, ISCSI_FLASHNODE_CHAP_IN_IDX); | |
881 | iscsi_flashnode_sess_attr(fnode, chap_out_idx, ISCSI_FLASHNODE_CHAP_OUT_IDX); | |
882 | iscsi_flashnode_sess_attr(fnode, username, ISCSI_FLASHNODE_USERNAME); | |
883 | iscsi_flashnode_sess_attr(fnode, username_in, ISCSI_FLASHNODE_USERNAME_IN); | |
884 | iscsi_flashnode_sess_attr(fnode, password, ISCSI_FLASHNODE_PASSWORD); | |
885 | iscsi_flashnode_sess_attr(fnode, password_in, ISCSI_FLASHNODE_PASSWORD_IN); | |
886 | iscsi_flashnode_sess_attr(fnode, is_boot_target, ISCSI_FLASHNODE_IS_BOOT_TGT); | |
887 | ||
888 | static struct attribute *iscsi_flashnode_sess_attrs[] = { | |
889 | &dev_attr_fnode_auto_snd_tgt_disable.attr, | |
890 | &dev_attr_fnode_discovery_session.attr, | |
891 | &dev_attr_fnode_portal_type.attr, | |
892 | &dev_attr_fnode_entry_enable.attr, | |
893 | &dev_attr_fnode_immediate_data.attr, | |
894 | &dev_attr_fnode_initial_r2t.attr, | |
895 | &dev_attr_fnode_data_seq_in_order.attr, | |
896 | &dev_attr_fnode_data_pdu_in_order.attr, | |
897 | &dev_attr_fnode_chap_auth.attr, | |
898 | &dev_attr_fnode_discovery_logout.attr, | |
899 | &dev_attr_fnode_bidi_chap.attr, | |
900 | &dev_attr_fnode_discovery_auth_optional.attr, | |
901 | &dev_attr_fnode_erl.attr, | |
902 | &dev_attr_fnode_first_burst_len.attr, | |
903 | &dev_attr_fnode_def_time2wait.attr, | |
904 | &dev_attr_fnode_def_time2retain.attr, | |
905 | &dev_attr_fnode_max_outstanding_r2t.attr, | |
906 | &dev_attr_fnode_isid.attr, | |
907 | &dev_attr_fnode_tsid.attr, | |
908 | &dev_attr_fnode_max_burst_len.attr, | |
909 | &dev_attr_fnode_def_taskmgmt_tmo.attr, | |
910 | &dev_attr_fnode_targetalias.attr, | |
911 | &dev_attr_fnode_targetname.attr, | |
912 | &dev_attr_fnode_tpgt.attr, | |
913 | &dev_attr_fnode_discovery_parent_idx.attr, | |
914 | &dev_attr_fnode_discovery_parent_type.attr, | |
915 | &dev_attr_fnode_chap_in_idx.attr, | |
916 | &dev_attr_fnode_chap_out_idx.attr, | |
917 | &dev_attr_fnode_username.attr, | |
918 | &dev_attr_fnode_username_in.attr, | |
919 | &dev_attr_fnode_password.attr, | |
920 | &dev_attr_fnode_password_in.attr, | |
921 | &dev_attr_fnode_is_boot_target.attr, | |
922 | NULL, | |
923 | }; | |
924 | ||
925 | static umode_t iscsi_flashnode_sess_attr_is_visible(struct kobject *kobj, | |
926 | struct attribute *attr, | |
927 | int i) | |
928 | { | |
929 | struct device *dev = container_of(kobj, struct device, kobj); | |
930 | struct iscsi_bus_flash_session *fnode_sess = | |
931 | iscsi_dev_to_flash_session(dev); | |
932 | struct iscsi_transport *t = fnode_sess->transport; | |
933 | int param; | |
934 | ||
935 | if (attr == &dev_attr_fnode_auto_snd_tgt_disable.attr) { | |
936 | param = ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE; | |
937 | } else if (attr == &dev_attr_fnode_discovery_session.attr) { | |
938 | param = ISCSI_FLASHNODE_DISCOVERY_SESS; | |
939 | } else if (attr == &dev_attr_fnode_portal_type.attr) { | |
940 | param = ISCSI_FLASHNODE_PORTAL_TYPE; | |
941 | } else if (attr == &dev_attr_fnode_entry_enable.attr) { | |
942 | param = ISCSI_FLASHNODE_ENTRY_EN; | |
943 | } else if (attr == &dev_attr_fnode_immediate_data.attr) { | |
944 | param = ISCSI_FLASHNODE_IMM_DATA_EN; | |
945 | } else if (attr == &dev_attr_fnode_initial_r2t.attr) { | |
946 | param = ISCSI_FLASHNODE_INITIAL_R2T_EN; | |
947 | } else if (attr == &dev_attr_fnode_data_seq_in_order.attr) { | |
948 | param = ISCSI_FLASHNODE_DATASEQ_INORDER; | |
949 | } else if (attr == &dev_attr_fnode_data_pdu_in_order.attr) { | |
950 | param = ISCSI_FLASHNODE_PDU_INORDER; | |
951 | } else if (attr == &dev_attr_fnode_chap_auth.attr) { | |
952 | param = ISCSI_FLASHNODE_CHAP_AUTH_EN; | |
953 | } else if (attr == &dev_attr_fnode_discovery_logout.attr) { | |
954 | param = ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN; | |
955 | } else if (attr == &dev_attr_fnode_bidi_chap.attr) { | |
956 | param = ISCSI_FLASHNODE_BIDI_CHAP_EN; | |
957 | } else if (attr == &dev_attr_fnode_discovery_auth_optional.attr) { | |
958 | param = ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL; | |
959 | } else if (attr == &dev_attr_fnode_erl.attr) { | |
960 | param = ISCSI_FLASHNODE_ERL; | |
961 | } else if (attr == &dev_attr_fnode_first_burst_len.attr) { | |
962 | param = ISCSI_FLASHNODE_FIRST_BURST; | |
963 | } else if (attr == &dev_attr_fnode_def_time2wait.attr) { | |
964 | param = ISCSI_FLASHNODE_DEF_TIME2WAIT; | |
965 | } else if (attr == &dev_attr_fnode_def_time2retain.attr) { | |
966 | param = ISCSI_FLASHNODE_DEF_TIME2RETAIN; | |
967 | } else if (attr == &dev_attr_fnode_max_outstanding_r2t.attr) { | |
968 | param = ISCSI_FLASHNODE_MAX_R2T; | |
969 | } else if (attr == &dev_attr_fnode_isid.attr) { | |
970 | param = ISCSI_FLASHNODE_ISID; | |
971 | } else if (attr == &dev_attr_fnode_tsid.attr) { | |
972 | param = ISCSI_FLASHNODE_TSID; | |
973 | } else if (attr == &dev_attr_fnode_max_burst_len.attr) { | |
974 | param = ISCSI_FLASHNODE_MAX_BURST; | |
975 | } else if (attr == &dev_attr_fnode_def_taskmgmt_tmo.attr) { | |
976 | param = ISCSI_FLASHNODE_DEF_TASKMGMT_TMO; | |
977 | } else if (attr == &dev_attr_fnode_targetalias.attr) { | |
978 | param = ISCSI_FLASHNODE_ALIAS; | |
979 | } else if (attr == &dev_attr_fnode_targetname.attr) { | |
980 | param = ISCSI_FLASHNODE_NAME; | |
981 | } else if (attr == &dev_attr_fnode_tpgt.attr) { | |
982 | param = ISCSI_FLASHNODE_TPGT; | |
983 | } else if (attr == &dev_attr_fnode_discovery_parent_idx.attr) { | |
984 | param = ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX; | |
985 | } else if (attr == &dev_attr_fnode_discovery_parent_type.attr) { | |
986 | param = ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE; | |
987 | } else if (attr == &dev_attr_fnode_chap_in_idx.attr) { | |
988 | param = ISCSI_FLASHNODE_CHAP_IN_IDX; | |
989 | } else if (attr == &dev_attr_fnode_chap_out_idx.attr) { | |
990 | param = ISCSI_FLASHNODE_CHAP_OUT_IDX; | |
991 | } else if (attr == &dev_attr_fnode_username.attr) { | |
992 | param = ISCSI_FLASHNODE_USERNAME; | |
993 | } else if (attr == &dev_attr_fnode_username_in.attr) { | |
994 | param = ISCSI_FLASHNODE_USERNAME_IN; | |
995 | } else if (attr == &dev_attr_fnode_password.attr) { | |
996 | param = ISCSI_FLASHNODE_PASSWORD; | |
997 | } else if (attr == &dev_attr_fnode_password_in.attr) { | |
998 | param = ISCSI_FLASHNODE_PASSWORD_IN; | |
999 | } else if (attr == &dev_attr_fnode_is_boot_target.attr) { | |
1000 | param = ISCSI_FLASHNODE_IS_BOOT_TGT; | |
1001 | } else { | |
1002 | WARN_ONCE(1, "Invalid flashnode session attr"); | |
1003 | return 0; | |
1004 | } | |
1005 | ||
1006 | return t->attr_is_visible(ISCSI_FLASHNODE_PARAM, param); | |
1007 | } | |
1008 | ||
1009 | static struct attribute_group iscsi_flashnode_sess_attr_group = { | |
1010 | .attrs = iscsi_flashnode_sess_attrs, | |
1011 | .is_visible = iscsi_flashnode_sess_attr_is_visible, | |
1012 | }; | |
1013 | ||
1014 | static const struct attribute_group *iscsi_flashnode_sess_attr_groups[] = { | |
1015 | &iscsi_flashnode_sess_attr_group, | |
1016 | NULL, | |
1017 | }; | |
1018 | ||
1019 | static void iscsi_flashnode_sess_release(struct device *dev) | |
1020 | { | |
1021 | struct iscsi_bus_flash_session *fnode_sess = | |
1022 | iscsi_dev_to_flash_session(dev); | |
1023 | ||
1024 | kfree(fnode_sess->targetname); | |
1025 | kfree(fnode_sess->targetalias); | |
1026 | kfree(fnode_sess->portal_type); | |
1027 | kfree(fnode_sess); | |
1028 | } | |
1029 | ||
7988faf5 | 1030 | static const struct device_type iscsi_flashnode_sess_dev_type = { |
c6a4bb2e AC |
1031 | .name = "iscsi_flashnode_sess_dev_type", |
1032 | .groups = iscsi_flashnode_sess_attr_groups, | |
1033 | .release = iscsi_flashnode_sess_release, | |
1034 | }; | |
1035 | ||
1036 | /* flash node connection attrs show */ | |
1037 | #define iscsi_flashnode_conn_attr_show(type, name, param) \ | |
1038 | static ssize_t \ | |
1039 | show_##type##_##name(struct device *dev, struct device_attribute *attr, \ | |
1040 | char *buf) \ | |
1041 | { \ | |
1042 | struct iscsi_bus_flash_conn *fnode_conn = iscsi_dev_to_flash_conn(dev);\ | |
1043 | struct iscsi_bus_flash_session *fnode_sess = \ | |
1044 | iscsi_flash_conn_to_flash_session(fnode_conn);\ | |
1045 | struct iscsi_transport *t = fnode_conn->transport; \ | |
1046 | return t->get_flashnode_param(fnode_sess, param, buf); \ | |
1047 | } \ | |
1048 | ||
1049 | ||
1050 | #define iscsi_flashnode_conn_attr(type, name, param) \ | |
1051 | iscsi_flashnode_conn_attr_show(type, name, param) \ | |
1052 | static ISCSI_FLASHNODE_ATTR(type, name, S_IRUGO, \ | |
1053 | show_##type##_##name, NULL); | |
1054 | ||
1055 | /* Flash node connection attributes */ | |
1056 | ||
1057 | iscsi_flashnode_conn_attr(fnode, is_fw_assigned_ipv6, | |
1058 | ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6); | |
1059 | iscsi_flashnode_conn_attr(fnode, header_digest, ISCSI_FLASHNODE_HDR_DGST_EN); | |
1060 | iscsi_flashnode_conn_attr(fnode, data_digest, ISCSI_FLASHNODE_DATA_DGST_EN); | |
1061 | iscsi_flashnode_conn_attr(fnode, snack_req, ISCSI_FLASHNODE_SNACK_REQ_EN); | |
1062 | iscsi_flashnode_conn_attr(fnode, tcp_timestamp_stat, | |
1063 | ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT); | |
1064 | iscsi_flashnode_conn_attr(fnode, tcp_nagle_disable, | |
1065 | ISCSI_FLASHNODE_TCP_NAGLE_DISABLE); | |
1066 | iscsi_flashnode_conn_attr(fnode, tcp_wsf_disable, | |
1067 | ISCSI_FLASHNODE_TCP_WSF_DISABLE); | |
1068 | iscsi_flashnode_conn_attr(fnode, tcp_timer_scale, | |
1069 | ISCSI_FLASHNODE_TCP_TIMER_SCALE); | |
1070 | iscsi_flashnode_conn_attr(fnode, tcp_timestamp_enable, | |
1071 | ISCSI_FLASHNODE_TCP_TIMESTAMP_EN); | |
1072 | iscsi_flashnode_conn_attr(fnode, fragment_disable, | |
1073 | ISCSI_FLASHNODE_IP_FRAG_DISABLE); | |
1074 | iscsi_flashnode_conn_attr(fnode, keepalive_tmo, ISCSI_FLASHNODE_KEEPALIVE_TMO); | |
1075 | iscsi_flashnode_conn_attr(fnode, port, ISCSI_FLASHNODE_PORT); | |
1076 | iscsi_flashnode_conn_attr(fnode, ipaddress, ISCSI_FLASHNODE_IPADDR); | |
1077 | iscsi_flashnode_conn_attr(fnode, max_recv_dlength, | |
1078 | ISCSI_FLASHNODE_MAX_RECV_DLENGTH); | |
1079 | iscsi_flashnode_conn_attr(fnode, max_xmit_dlength, | |
1080 | ISCSI_FLASHNODE_MAX_XMIT_DLENGTH); | |
1081 | iscsi_flashnode_conn_attr(fnode, local_port, ISCSI_FLASHNODE_LOCAL_PORT); | |
1082 | iscsi_flashnode_conn_attr(fnode, ipv4_tos, ISCSI_FLASHNODE_IPV4_TOS); | |
1083 | iscsi_flashnode_conn_attr(fnode, ipv6_traffic_class, ISCSI_FLASHNODE_IPV6_TC); | |
1084 | iscsi_flashnode_conn_attr(fnode, ipv6_flow_label, | |
1085 | ISCSI_FLASHNODE_IPV6_FLOW_LABEL); | |
1086 | iscsi_flashnode_conn_attr(fnode, redirect_ipaddr, | |
1087 | ISCSI_FLASHNODE_REDIRECT_IPADDR); | |
1088 | iscsi_flashnode_conn_attr(fnode, max_segment_size, | |
1089 | ISCSI_FLASHNODE_MAX_SEGMENT_SIZE); | |
1090 | iscsi_flashnode_conn_attr(fnode, link_local_ipv6, | |
1091 | ISCSI_FLASHNODE_LINK_LOCAL_IPV6); | |
1092 | iscsi_flashnode_conn_attr(fnode, tcp_xmit_wsf, ISCSI_FLASHNODE_TCP_XMIT_WSF); | |
1093 | iscsi_flashnode_conn_attr(fnode, tcp_recv_wsf, ISCSI_FLASHNODE_TCP_RECV_WSF); | |
1094 | iscsi_flashnode_conn_attr(fnode, statsn, ISCSI_FLASHNODE_STATSN); | |
1095 | iscsi_flashnode_conn_attr(fnode, exp_statsn, ISCSI_FLASHNODE_EXP_STATSN); | |
1096 | ||
1097 | static struct attribute *iscsi_flashnode_conn_attrs[] = { | |
1098 | &dev_attr_fnode_is_fw_assigned_ipv6.attr, | |
1099 | &dev_attr_fnode_header_digest.attr, | |
1100 | &dev_attr_fnode_data_digest.attr, | |
1101 | &dev_attr_fnode_snack_req.attr, | |
1102 | &dev_attr_fnode_tcp_timestamp_stat.attr, | |
1103 | &dev_attr_fnode_tcp_nagle_disable.attr, | |
1104 | &dev_attr_fnode_tcp_wsf_disable.attr, | |
1105 | &dev_attr_fnode_tcp_timer_scale.attr, | |
1106 | &dev_attr_fnode_tcp_timestamp_enable.attr, | |
1107 | &dev_attr_fnode_fragment_disable.attr, | |
1108 | &dev_attr_fnode_max_recv_dlength.attr, | |
1109 | &dev_attr_fnode_max_xmit_dlength.attr, | |
1110 | &dev_attr_fnode_keepalive_tmo.attr, | |
1111 | &dev_attr_fnode_port.attr, | |
1112 | &dev_attr_fnode_ipaddress.attr, | |
1113 | &dev_attr_fnode_redirect_ipaddr.attr, | |
1114 | &dev_attr_fnode_max_segment_size.attr, | |
1115 | &dev_attr_fnode_local_port.attr, | |
1116 | &dev_attr_fnode_ipv4_tos.attr, | |
1117 | &dev_attr_fnode_ipv6_traffic_class.attr, | |
1118 | &dev_attr_fnode_ipv6_flow_label.attr, | |
1119 | &dev_attr_fnode_link_local_ipv6.attr, | |
1120 | &dev_attr_fnode_tcp_xmit_wsf.attr, | |
1121 | &dev_attr_fnode_tcp_recv_wsf.attr, | |
1122 | &dev_attr_fnode_statsn.attr, | |
1123 | &dev_attr_fnode_exp_statsn.attr, | |
1124 | NULL, | |
1125 | }; | |
1126 | ||
1127 | static umode_t iscsi_flashnode_conn_attr_is_visible(struct kobject *kobj, | |
1128 | struct attribute *attr, | |
1129 | int i) | |
1130 | { | |
1131 | struct device *dev = container_of(kobj, struct device, kobj); | |
1132 | struct iscsi_bus_flash_conn *fnode_conn = iscsi_dev_to_flash_conn(dev); | |
1133 | struct iscsi_transport *t = fnode_conn->transport; | |
1134 | int param; | |
1135 | ||
1136 | if (attr == &dev_attr_fnode_is_fw_assigned_ipv6.attr) { | |
1137 | param = ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6; | |
1138 | } else if (attr == &dev_attr_fnode_header_digest.attr) { | |
1139 | param = ISCSI_FLASHNODE_HDR_DGST_EN; | |
1140 | } else if (attr == &dev_attr_fnode_data_digest.attr) { | |
1141 | param = ISCSI_FLASHNODE_DATA_DGST_EN; | |
1142 | } else if (attr == &dev_attr_fnode_snack_req.attr) { | |
1143 | param = ISCSI_FLASHNODE_SNACK_REQ_EN; | |
1144 | } else if (attr == &dev_attr_fnode_tcp_timestamp_stat.attr) { | |
1145 | param = ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT; | |
1146 | } else if (attr == &dev_attr_fnode_tcp_nagle_disable.attr) { | |
1147 | param = ISCSI_FLASHNODE_TCP_NAGLE_DISABLE; | |
1148 | } else if (attr == &dev_attr_fnode_tcp_wsf_disable.attr) { | |
1149 | param = ISCSI_FLASHNODE_TCP_WSF_DISABLE; | |
1150 | } else if (attr == &dev_attr_fnode_tcp_timer_scale.attr) { | |
1151 | param = ISCSI_FLASHNODE_TCP_TIMER_SCALE; | |
1152 | } else if (attr == &dev_attr_fnode_tcp_timestamp_enable.attr) { | |
1153 | param = ISCSI_FLASHNODE_TCP_TIMESTAMP_EN; | |
1154 | } else if (attr == &dev_attr_fnode_fragment_disable.attr) { | |
1155 | param = ISCSI_FLASHNODE_IP_FRAG_DISABLE; | |
1156 | } else if (attr == &dev_attr_fnode_max_recv_dlength.attr) { | |
1157 | param = ISCSI_FLASHNODE_MAX_RECV_DLENGTH; | |
1158 | } else if (attr == &dev_attr_fnode_max_xmit_dlength.attr) { | |
1159 | param = ISCSI_FLASHNODE_MAX_XMIT_DLENGTH; | |
1160 | } else if (attr == &dev_attr_fnode_keepalive_tmo.attr) { | |
1161 | param = ISCSI_FLASHNODE_KEEPALIVE_TMO; | |
1162 | } else if (attr == &dev_attr_fnode_port.attr) { | |
1163 | param = ISCSI_FLASHNODE_PORT; | |
1164 | } else if (attr == &dev_attr_fnode_ipaddress.attr) { | |
1165 | param = ISCSI_FLASHNODE_IPADDR; | |
1166 | } else if (attr == &dev_attr_fnode_redirect_ipaddr.attr) { | |
1167 | param = ISCSI_FLASHNODE_REDIRECT_IPADDR; | |
1168 | } else if (attr == &dev_attr_fnode_max_segment_size.attr) { | |
1169 | param = ISCSI_FLASHNODE_MAX_SEGMENT_SIZE; | |
1170 | } else if (attr == &dev_attr_fnode_local_port.attr) { | |
1171 | param = ISCSI_FLASHNODE_LOCAL_PORT; | |
1172 | } else if (attr == &dev_attr_fnode_ipv4_tos.attr) { | |
1173 | param = ISCSI_FLASHNODE_IPV4_TOS; | |
1174 | } else if (attr == &dev_attr_fnode_ipv6_traffic_class.attr) { | |
1175 | param = ISCSI_FLASHNODE_IPV6_TC; | |
1176 | } else if (attr == &dev_attr_fnode_ipv6_flow_label.attr) { | |
1177 | param = ISCSI_FLASHNODE_IPV6_FLOW_LABEL; | |
1178 | } else if (attr == &dev_attr_fnode_link_local_ipv6.attr) { | |
1179 | param = ISCSI_FLASHNODE_LINK_LOCAL_IPV6; | |
1180 | } else if (attr == &dev_attr_fnode_tcp_xmit_wsf.attr) { | |
1181 | param = ISCSI_FLASHNODE_TCP_XMIT_WSF; | |
1182 | } else if (attr == &dev_attr_fnode_tcp_recv_wsf.attr) { | |
1183 | param = ISCSI_FLASHNODE_TCP_RECV_WSF; | |
1184 | } else if (attr == &dev_attr_fnode_statsn.attr) { | |
1185 | param = ISCSI_FLASHNODE_STATSN; | |
1186 | } else if (attr == &dev_attr_fnode_exp_statsn.attr) { | |
1187 | param = ISCSI_FLASHNODE_EXP_STATSN; | |
1188 | } else { | |
1189 | WARN_ONCE(1, "Invalid flashnode connection attr"); | |
1190 | return 0; | |
1191 | } | |
1192 | ||
1193 | return t->attr_is_visible(ISCSI_FLASHNODE_PARAM, param); | |
1194 | } | |
1195 | ||
1196 | static struct attribute_group iscsi_flashnode_conn_attr_group = { | |
1197 | .attrs = iscsi_flashnode_conn_attrs, | |
1198 | .is_visible = iscsi_flashnode_conn_attr_is_visible, | |
1199 | }; | |
1200 | ||
1201 | static const struct attribute_group *iscsi_flashnode_conn_attr_groups[] = { | |
1202 | &iscsi_flashnode_conn_attr_group, | |
1203 | NULL, | |
1204 | }; | |
1205 | ||
1206 | static void iscsi_flashnode_conn_release(struct device *dev) | |
1207 | { | |
1208 | struct iscsi_bus_flash_conn *fnode_conn = iscsi_dev_to_flash_conn(dev); | |
1209 | ||
1210 | kfree(fnode_conn->ipaddress); | |
1211 | kfree(fnode_conn->redirect_ipaddr); | |
1212 | kfree(fnode_conn->link_local_ipv6_addr); | |
1213 | kfree(fnode_conn); | |
1214 | } | |
1215 | ||
7988faf5 | 1216 | static const struct device_type iscsi_flashnode_conn_dev_type = { |
c6a4bb2e AC |
1217 | .name = "iscsi_flashnode_conn_dev_type", |
1218 | .groups = iscsi_flashnode_conn_attr_groups, | |
1219 | .release = iscsi_flashnode_conn_release, | |
1220 | }; | |
1221 | ||
4c1340af | 1222 | static struct bus_type iscsi_flashnode_bus; |
c6a4bb2e AC |
1223 | |
1224 | int iscsi_flashnode_bus_match(struct device *dev, | |
1225 | struct device_driver *drv) | |
1226 | { | |
1227 | if (dev->bus == &iscsi_flashnode_bus) | |
1228 | return 1; | |
1229 | return 0; | |
1230 | } | |
1231 | EXPORT_SYMBOL_GPL(iscsi_flashnode_bus_match); | |
1232 | ||
4c1340af | 1233 | static struct bus_type iscsi_flashnode_bus = { |
c6a4bb2e AC |
1234 | .name = "iscsi_flashnode", |
1235 | .match = &iscsi_flashnode_bus_match, | |
1236 | }; | |
1237 | ||
1238 | /** | |
1239 | * iscsi_create_flashnode_sess - Add flashnode session entry in sysfs | |
1240 | * @shost: pointer to host data | |
1241 | * @index: index of flashnode to add in sysfs | |
1242 | * @transport: pointer to transport data | |
1243 | * @dd_size: total size to allocate | |
1244 | * | |
1245 | * Adds a sysfs entry for the flashnode session attributes | |
1246 | * | |
1247 | * Returns: | |
e227867f | 1248 | * pointer to allocated flashnode sess on success |
c6a4bb2e AC |
1249 | * %NULL on failure |
1250 | */ | |
1251 | struct iscsi_bus_flash_session * | |
1252 | iscsi_create_flashnode_sess(struct Scsi_Host *shost, int index, | |
1253 | struct iscsi_transport *transport, | |
1254 | int dd_size) | |
1255 | { | |
1256 | struct iscsi_bus_flash_session *fnode_sess; | |
1257 | int err; | |
1258 | ||
1259 | fnode_sess = kzalloc(sizeof(*fnode_sess) + dd_size, GFP_KERNEL); | |
1260 | if (!fnode_sess) | |
1261 | return NULL; | |
1262 | ||
1263 | fnode_sess->transport = transport; | |
1264 | fnode_sess->target_id = index; | |
1265 | fnode_sess->dev.type = &iscsi_flashnode_sess_dev_type; | |
1266 | fnode_sess->dev.bus = &iscsi_flashnode_bus; | |
1267 | fnode_sess->dev.parent = &shost->shost_gendev; | |
1268 | dev_set_name(&fnode_sess->dev, "flashnode_sess-%u:%u", | |
1269 | shost->host_no, index); | |
1270 | ||
1271 | err = device_register(&fnode_sess->dev); | |
1272 | if (err) | |
1273 | goto free_fnode_sess; | |
1274 | ||
1275 | if (dd_size) | |
1276 | fnode_sess->dd_data = &fnode_sess[1]; | |
1277 | ||
1278 | return fnode_sess; | |
1279 | ||
1280 | free_fnode_sess: | |
1281 | kfree(fnode_sess); | |
1282 | return NULL; | |
1283 | } | |
1284 | EXPORT_SYMBOL_GPL(iscsi_create_flashnode_sess); | |
1285 | ||
1286 | /** | |
1287 | * iscsi_create_flashnode_conn - Add flashnode conn entry in sysfs | |
1288 | * @shost: pointer to host data | |
1289 | * @fnode_sess: pointer to the parent flashnode session entry | |
1290 | * @transport: pointer to transport data | |
1291 | * @dd_size: total size to allocate | |
1292 | * | |
1293 | * Adds a sysfs entry for the flashnode connection attributes | |
1294 | * | |
1295 | * Returns: | |
1296 | * pointer to allocated flashnode conn on success | |
1297 | * %NULL on failure | |
1298 | */ | |
1299 | struct iscsi_bus_flash_conn * | |
1300 | iscsi_create_flashnode_conn(struct Scsi_Host *shost, | |
1301 | struct iscsi_bus_flash_session *fnode_sess, | |
1302 | struct iscsi_transport *transport, | |
1303 | int dd_size) | |
1304 | { | |
1305 | struct iscsi_bus_flash_conn *fnode_conn; | |
1306 | int err; | |
1307 | ||
1308 | fnode_conn = kzalloc(sizeof(*fnode_conn) + dd_size, GFP_KERNEL); | |
1309 | if (!fnode_conn) | |
1310 | return NULL; | |
1311 | ||
1312 | fnode_conn->transport = transport; | |
1313 | fnode_conn->dev.type = &iscsi_flashnode_conn_dev_type; | |
1314 | fnode_conn->dev.bus = &iscsi_flashnode_bus; | |
1315 | fnode_conn->dev.parent = &fnode_sess->dev; | |
1316 | dev_set_name(&fnode_conn->dev, "flashnode_conn-%u:%u:0", | |
1317 | shost->host_no, fnode_sess->target_id); | |
1318 | ||
1319 | err = device_register(&fnode_conn->dev); | |
1320 | if (err) | |
1321 | goto free_fnode_conn; | |
1322 | ||
1323 | if (dd_size) | |
1324 | fnode_conn->dd_data = &fnode_conn[1]; | |
1325 | ||
1326 | return fnode_conn; | |
1327 | ||
1328 | free_fnode_conn: | |
1329 | kfree(fnode_conn); | |
1330 | return NULL; | |
1331 | } | |
1332 | EXPORT_SYMBOL_GPL(iscsi_create_flashnode_conn); | |
1333 | ||
1334 | /** | |
1335 | * iscsi_is_flashnode_conn_dev - verify passed device is to be flashnode conn | |
1336 | * @dev: device to verify | |
1337 | * @data: pointer to data containing value to use for verification | |
1338 | * | |
1339 | * Verifies if the passed device is flashnode conn device | |
1340 | * | |
1341 | * Returns: | |
1342 | * 1 on success | |
1343 | * 0 on failure | |
1344 | */ | |
7a15fdfa | 1345 | static int iscsi_is_flashnode_conn_dev(struct device *dev, void *data) |
c6a4bb2e AC |
1346 | { |
1347 | return dev->bus == &iscsi_flashnode_bus; | |
1348 | } | |
c6a4bb2e AC |
1349 | |
1350 | static int iscsi_destroy_flashnode_conn(struct iscsi_bus_flash_conn *fnode_conn) | |
1351 | { | |
1352 | device_unregister(&fnode_conn->dev); | |
1353 | return 0; | |
1354 | } | |
1355 | ||
1356 | static int flashnode_match_index(struct device *dev, void *data) | |
1357 | { | |
1358 | struct iscsi_bus_flash_session *fnode_sess = NULL; | |
1359 | int ret = 0; | |
1360 | ||
1361 | if (!iscsi_flashnode_bus_match(dev, NULL)) | |
1362 | goto exit_match_index; | |
1363 | ||
1364 | fnode_sess = iscsi_dev_to_flash_session(dev); | |
1365 | ret = (fnode_sess->target_id == *((int *)data)) ? 1 : 0; | |
1366 | ||
1367 | exit_match_index: | |
1368 | return ret; | |
1369 | } | |
1370 | ||
1371 | /** | |
1372 | * iscsi_get_flashnode_by_index -finds flashnode session entry by index | |
1373 | * @shost: pointer to host data | |
8526cb11 | 1374 | * @idx: index to match |
c6a4bb2e AC |
1375 | * |
1376 | * Finds the flashnode session object for the passed index | |
1377 | * | |
1378 | * Returns: | |
1379 | * pointer to found flashnode session object on success | |
1380 | * %NULL on failure | |
1381 | */ | |
1382 | static struct iscsi_bus_flash_session * | |
8526cb11 | 1383 | iscsi_get_flashnode_by_index(struct Scsi_Host *shost, uint32_t idx) |
c6a4bb2e AC |
1384 | { |
1385 | struct iscsi_bus_flash_session *fnode_sess = NULL; | |
1386 | struct device *dev; | |
1387 | ||
8526cb11 MC |
1388 | dev = device_find_child(&shost->shost_gendev, &idx, |
1389 | flashnode_match_index); | |
c6a4bb2e AC |
1390 | if (dev) |
1391 | fnode_sess = iscsi_dev_to_flash_session(dev); | |
1392 | ||
1393 | return fnode_sess; | |
1394 | } | |
1395 | ||
1396 | /** | |
1397 | * iscsi_find_flashnode_sess - finds flashnode session entry | |
1398 | * @shost: pointer to host data | |
1399 | * @data: pointer to data containing value to use for comparison | |
1400 | * @fn: function pointer that does actual comparison | |
1401 | * | |
1402 | * Finds the flashnode session object comparing the data passed using logic | |
1403 | * defined in passed function pointer | |
1404 | * | |
1405 | * Returns: | |
1406 | * pointer to found flashnode session device object on success | |
1407 | * %NULL on failure | |
1408 | */ | |
1409 | struct device * | |
1410 | iscsi_find_flashnode_sess(struct Scsi_Host *shost, void *data, | |
1411 | int (*fn)(struct device *dev, void *data)) | |
1412 | { | |
8526cb11 | 1413 | return device_find_child(&shost->shost_gendev, data, fn); |
c6a4bb2e AC |
1414 | } |
1415 | EXPORT_SYMBOL_GPL(iscsi_find_flashnode_sess); | |
1416 | ||
1417 | /** | |
1418 | * iscsi_find_flashnode_conn - finds flashnode connection entry | |
1419 | * @fnode_sess: pointer to parent flashnode session entry | |
c6a4bb2e AC |
1420 | * |
1421 | * Finds the flashnode connection object comparing the data passed using logic | |
1422 | * defined in passed function pointer | |
1423 | * | |
1424 | * Returns: | |
1425 | * pointer to found flashnode connection device object on success | |
1426 | * %NULL on failure | |
1427 | */ | |
1428 | struct device * | |
8526cb11 | 1429 | iscsi_find_flashnode_conn(struct iscsi_bus_flash_session *fnode_sess) |
c6a4bb2e | 1430 | { |
8526cb11 MC |
1431 | return device_find_child(&fnode_sess->dev, NULL, |
1432 | iscsi_is_flashnode_conn_dev); | |
c6a4bb2e AC |
1433 | } |
1434 | EXPORT_SYMBOL_GPL(iscsi_find_flashnode_conn); | |
1435 | ||
1436 | static int iscsi_iter_destroy_flashnode_conn_fn(struct device *dev, void *data) | |
1437 | { | |
1438 | if (!iscsi_is_flashnode_conn_dev(dev, NULL)) | |
1439 | return 0; | |
1440 | ||
1441 | return iscsi_destroy_flashnode_conn(iscsi_dev_to_flash_conn(dev)); | |
1442 | } | |
1443 | ||
1444 | /** | |
e227867f | 1445 | * iscsi_destroy_flashnode_sess - destroy flashnode session entry |
c6a4bb2e AC |
1446 | * @fnode_sess: pointer to flashnode session entry to be destroyed |
1447 | * | |
1448 | * Deletes the flashnode session entry and all children flashnode connection | |
1449 | * entries from sysfs | |
1450 | */ | |
1451 | void iscsi_destroy_flashnode_sess(struct iscsi_bus_flash_session *fnode_sess) | |
1452 | { | |
1453 | int err; | |
1454 | ||
1455 | err = device_for_each_child(&fnode_sess->dev, NULL, | |
1456 | iscsi_iter_destroy_flashnode_conn_fn); | |
1457 | if (err) | |
1458 | pr_err("Could not delete all connections for %s. Error %d.\n", | |
1459 | fnode_sess->dev.kobj.name, err); | |
1460 | ||
1461 | device_unregister(&fnode_sess->dev); | |
1462 | } | |
1463 | EXPORT_SYMBOL_GPL(iscsi_destroy_flashnode_sess); | |
1464 | ||
1465 | static int iscsi_iter_destroy_flashnode_fn(struct device *dev, void *data) | |
1466 | { | |
1467 | if (!iscsi_flashnode_bus_match(dev, NULL)) | |
1468 | return 0; | |
1469 | ||
1470 | iscsi_destroy_flashnode_sess(iscsi_dev_to_flash_session(dev)); | |
1471 | return 0; | |
1472 | } | |
1473 | ||
1474 | /** | |
e227867f | 1475 | * iscsi_destroy_all_flashnode - destroy all flashnode session entries |
c6a4bb2e AC |
1476 | * @shost: pointer to host data |
1477 | * | |
1478 | * Destroys all the flashnode session entries and all corresponding children | |
1479 | * flashnode connection entries from sysfs | |
1480 | */ | |
1481 | void iscsi_destroy_all_flashnode(struct Scsi_Host *shost) | |
1482 | { | |
1483 | device_for_each_child(&shost->shost_gendev, NULL, | |
1484 | iscsi_iter_destroy_flashnode_fn); | |
1485 | } | |
1486 | EXPORT_SYMBOL_GPL(iscsi_destroy_all_flashnode); | |
1487 | ||
90eeb01a MC |
1488 | /* |
1489 | * BSG support | |
1490 | */ | |
1491 | /** | |
1492 | * iscsi_bsg_host_dispatch - Dispatch command to LLD. | |
1493 | * @job: bsg job to be processed | |
1494 | */ | |
1495 | static int iscsi_bsg_host_dispatch(struct bsg_job *job) | |
1496 | { | |
1497 | struct Scsi_Host *shost = iscsi_job_to_shost(job); | |
1498 | struct iscsi_bsg_request *req = job->request; | |
1499 | struct iscsi_bsg_reply *reply = job->reply; | |
1500 | struct iscsi_internal *i = to_iscsi_internal(shost->transportt); | |
1501 | int cmdlen = sizeof(uint32_t); /* start with length of msgcode */ | |
1502 | int ret; | |
1503 | ||
1504 | /* check if we have the msgcode value at least */ | |
1505 | if (job->request_len < sizeof(uint32_t)) { | |
1506 | ret = -ENOMSG; | |
1507 | goto fail_host_msg; | |
1508 | } | |
1509 | ||
1510 | /* Validate the host command */ | |
1511 | switch (req->msgcode) { | |
1512 | case ISCSI_BSG_HST_VENDOR: | |
1513 | cmdlen += sizeof(struct iscsi_bsg_host_vendor); | |
1514 | if ((shost->hostt->vendor_id == 0L) || | |
1515 | (req->rqst_data.h_vendor.vendor_id != | |
1516 | shost->hostt->vendor_id)) { | |
1517 | ret = -ESRCH; | |
1518 | goto fail_host_msg; | |
1519 | } | |
1520 | break; | |
1521 | default: | |
1522 | ret = -EBADR; | |
1523 | goto fail_host_msg; | |
1524 | } | |
1525 | ||
1526 | /* check if we really have all the request data needed */ | |
1527 | if (job->request_len < cmdlen) { | |
1528 | ret = -ENOMSG; | |
1529 | goto fail_host_msg; | |
1530 | } | |
1531 | ||
1532 | ret = i->iscsi_transport->bsg_request(job); | |
1533 | if (!ret) | |
1534 | return 0; | |
1535 | ||
1536 | fail_host_msg: | |
1537 | /* return the errno failure code as the only status */ | |
1538 | BUG_ON(job->reply_len < sizeof(uint32_t)); | |
1539 | reply->reply_payload_rcv_len = 0; | |
1540 | reply->result = ret; | |
1541 | job->reply_len = sizeof(uint32_t); | |
1542 | bsg_job_done(job, ret, 0); | |
1543 | return 0; | |
1544 | } | |
1545 | ||
1546 | /** | |
1547 | * iscsi_bsg_host_add - Create and add the bsg hooks to receive requests | |
1548 | * @shost: shost for iscsi_host | |
eae627e4 | 1549 | * @ihost: iscsi_cls_host adding the structures to |
90eeb01a MC |
1550 | */ |
1551 | static int | |
1552 | iscsi_bsg_host_add(struct Scsi_Host *shost, struct iscsi_cls_host *ihost) | |
1553 | { | |
1554 | struct device *dev = &shost->shost_gendev; | |
1555 | struct iscsi_internal *i = to_iscsi_internal(shost->transportt); | |
1556 | struct request_queue *q; | |
1557 | char bsg_name[20]; | |
90eeb01a MC |
1558 | |
1559 | if (!i->iscsi_transport->bsg_request) | |
1560 | return -ENOTSUPP; | |
1561 | ||
1562 | snprintf(bsg_name, sizeof(bsg_name), "iscsi_host%d", shost->host_no); | |
aae3b069 | 1563 | q = bsg_setup_queue(dev, bsg_name, iscsi_bsg_host_dispatch, NULL, 0); |
8ae94eb6 | 1564 | if (IS_ERR(q)) { |
90eeb01a MC |
1565 | shost_printk(KERN_ERR, shost, "bsg interface failed to " |
1566 | "initialize - no request queue\n"); | |
8ae94eb6 | 1567 | return PTR_ERR(q); |
90eeb01a | 1568 | } |
8ae94eb6 | 1569 | __scsi_init_queue(shost, q); |
90eeb01a MC |
1570 | |
1571 | ihost->bsg_q = q; | |
1572 | return 0; | |
1573 | } | |
1574 | ||
30a6c652 | 1575 | static int iscsi_setup_host(struct transport_container *tc, struct device *dev, |
ee959b00 | 1576 | struct device *cdev) |
30a6c652 MC |
1577 | { |
1578 | struct Scsi_Host *shost = dev_to_shost(dev); | |
32c6e1b9 | 1579 | struct iscsi_cls_host *ihost = shost->shost_data; |
30a6c652 MC |
1580 | |
1581 | memset(ihost, 0, sizeof(*ihost)); | |
8aae18ad | 1582 | atomic_set(&ihost->nr_scans, 0); |
7970634b | 1583 | mutex_init(&ihost->mutex); |
90eeb01a MC |
1584 | |
1585 | iscsi_bsg_host_add(shost, ihost); | |
1586 | /* ignore any bsg add error - we just can't do sgio */ | |
1587 | ||
1588 | return 0; | |
1589 | } | |
1590 | ||
1591 | static int iscsi_remove_host(struct transport_container *tc, | |
1592 | struct device *dev, struct device *cdev) | |
1593 | { | |
1594 | struct Scsi_Host *shost = dev_to_shost(dev); | |
1595 | struct iscsi_cls_host *ihost = shost->shost_data; | |
1596 | ||
5e28b8d8 | 1597 | bsg_remove_queue(ihost->bsg_q); |
30a6c652 MC |
1598 | return 0; |
1599 | } | |
1600 | ||
1601 | static DECLARE_TRANSPORT_CLASS(iscsi_host_class, | |
1602 | "iscsi_host", | |
1603 | iscsi_setup_host, | |
90eeb01a | 1604 | iscsi_remove_host, |
30a6c652 MC |
1605 | NULL); |
1606 | ||
0896b752 AA |
1607 | static DECLARE_TRANSPORT_CLASS(iscsi_session_class, |
1608 | "iscsi_session", | |
1da177e4 LT |
1609 | NULL, |
1610 | NULL, | |
1611 | NULL); | |
1612 | ||
0896b752 AA |
1613 | static DECLARE_TRANSPORT_CLASS(iscsi_connection_class, |
1614 | "iscsi_connection", | |
1da177e4 LT |
1615 | NULL, |
1616 | NULL, | |
1617 | NULL); | |
0896b752 AA |
1618 | |
1619 | static struct sock *nls; | |
0b950672 | 1620 | static DEFINE_MUTEX(rx_queue_mutex); |
0896b752 | 1621 | |
7b7232f3 MC |
1622 | static LIST_HEAD(sesslist); |
1623 | static DEFINE_SPINLOCK(sesslock); | |
7b8631b5 MC |
1624 | static LIST_HEAD(connlist); |
1625 | static DEFINE_SPINLOCK(connlock); | |
0896b752 | 1626 | |
b5c7a12d MC |
1627 | static uint32_t iscsi_conn_get_sid(struct iscsi_cls_conn *conn) |
1628 | { | |
1629 | struct iscsi_cls_session *sess = iscsi_dev_to_session(conn->dev.parent); | |
1630 | return sess->sid; | |
1631 | } | |
1632 | ||
1633 | /* | |
1634 | * Returns the matching session to a given sid | |
1635 | */ | |
1636 | static struct iscsi_cls_session *iscsi_session_lookup(uint32_t sid) | |
7b7232f3 MC |
1637 | { |
1638 | unsigned long flags; | |
1639 | struct iscsi_cls_session *sess; | |
1640 | ||
1641 | spin_lock_irqsave(&sesslock, flags); | |
1642 | list_for_each_entry(sess, &sesslist, sess_list) { | |
b5c7a12d | 1643 | if (sess->sid == sid) { |
7b7232f3 MC |
1644 | spin_unlock_irqrestore(&sesslock, flags); |
1645 | return sess; | |
1646 | } | |
1647 | } | |
1648 | spin_unlock_irqrestore(&sesslock, flags); | |
1649 | return NULL; | |
1650 | } | |
1651 | ||
b5c7a12d MC |
1652 | /* |
1653 | * Returns the matching connection to a given sid / cid tuple | |
1654 | */ | |
1655 | static struct iscsi_cls_conn *iscsi_conn_lookup(uint32_t sid, uint32_t cid) | |
7b7232f3 MC |
1656 | { |
1657 | unsigned long flags; | |
1658 | struct iscsi_cls_conn *conn; | |
1659 | ||
1660 | spin_lock_irqsave(&connlock, flags); | |
1661 | list_for_each_entry(conn, &connlist, conn_list) { | |
b5c7a12d | 1662 | if ((conn->cid == cid) && (iscsi_conn_get_sid(conn) == sid)) { |
7b7232f3 MC |
1663 | spin_unlock_irqrestore(&connlock, flags); |
1664 | return conn; | |
1665 | } | |
1666 | } | |
1667 | spin_unlock_irqrestore(&connlock, flags); | |
1668 | return NULL; | |
1669 | } | |
1670 | ||
7b8631b5 MC |
1671 | /* |
1672 | * The following functions can be used by LLDs that allocate | |
1673 | * their own scsi_hosts or by software iscsi LLDs | |
1674 | */ | |
6eabafbe MC |
1675 | static struct { |
1676 | int value; | |
1677 | char *name; | |
1678 | } iscsi_session_state_names[] = { | |
1679 | { ISCSI_SESSION_LOGGED_IN, "LOGGED_IN" }, | |
1680 | { ISCSI_SESSION_FAILED, "FAILED" }, | |
1681 | { ISCSI_SESSION_FREE, "FREE" }, | |
1682 | }; | |
1683 | ||
3b0f208a | 1684 | static const char *iscsi_session_state_name(int state) |
6eabafbe MC |
1685 | { |
1686 | int i; | |
1687 | char *name = NULL; | |
1688 | ||
1689 | for (i = 0; i < ARRAY_SIZE(iscsi_session_state_names); i++) { | |
1690 | if (iscsi_session_state_names[i].value == state) { | |
1691 | name = iscsi_session_state_names[i].name; | |
1692 | break; | |
1693 | } | |
1694 | } | |
1695 | return name; | |
1696 | } | |
1697 | ||
1698 | int iscsi_session_chkready(struct iscsi_cls_session *session) | |
1699 | { | |
1700 | unsigned long flags; | |
1701 | int err; | |
1702 | ||
1703 | spin_lock_irqsave(&session->lock, flags); | |
1704 | switch (session->state) { | |
1705 | case ISCSI_SESSION_LOGGED_IN: | |
1706 | err = 0; | |
1707 | break; | |
1708 | case ISCSI_SESSION_FAILED: | |
9a1a69a1 | 1709 | err = DID_IMM_RETRY << 16; |
6eabafbe MC |
1710 | break; |
1711 | case ISCSI_SESSION_FREE: | |
56d7fcfa | 1712 | err = DID_TRANSPORT_FAILFAST << 16; |
6eabafbe MC |
1713 | break; |
1714 | default: | |
1715 | err = DID_NO_CONNECT << 16; | |
1716 | break; | |
1717 | } | |
1718 | spin_unlock_irqrestore(&session->lock, flags); | |
1719 | return err; | |
1720 | } | |
1721 | EXPORT_SYMBOL_GPL(iscsi_session_chkready); | |
1722 | ||
17fa575e MR |
1723 | int iscsi_is_session_online(struct iscsi_cls_session *session) |
1724 | { | |
1725 | unsigned long flags; | |
1726 | int ret = 0; | |
1727 | ||
1728 | spin_lock_irqsave(&session->lock, flags); | |
1729 | if (session->state == ISCSI_SESSION_LOGGED_IN) | |
1730 | ret = 1; | |
1731 | spin_unlock_irqrestore(&session->lock, flags); | |
1732 | return ret; | |
1733 | } | |
1734 | EXPORT_SYMBOL_GPL(iscsi_is_session_online); | |
1735 | ||
7b8631b5 MC |
1736 | static void iscsi_session_release(struct device *dev) |
1737 | { | |
1738 | struct iscsi_cls_session *session = iscsi_dev_to_session(dev); | |
7b8631b5 | 1739 | struct Scsi_Host *shost; |
0896b752 | 1740 | |
7b8631b5 MC |
1741 | shost = iscsi_session_to_shost(session); |
1742 | scsi_host_put(shost); | |
632248aa | 1743 | ISCSI_DBG_TRANS_SESSION(session, "Completing session release\n"); |
7b8631b5 | 1744 | kfree(session); |
7b8631b5 | 1745 | } |
0896b752 | 1746 | |
6260a5d2 | 1747 | int iscsi_is_session_dev(const struct device *dev) |
7b8631b5 MC |
1748 | { |
1749 | return dev->release == iscsi_session_release; | |
1750 | } | |
6260a5d2 | 1751 | EXPORT_SYMBOL_GPL(iscsi_is_session_dev); |
0896b752 | 1752 | |
a4804cd6 MC |
1753 | static int iscsi_iter_session_fn(struct device *dev, void *data) |
1754 | { | |
1755 | void (* fn) (struct iscsi_cls_session *) = data; | |
1756 | ||
1757 | if (!iscsi_is_session_dev(dev)) | |
1758 | return 0; | |
1759 | fn(iscsi_dev_to_session(dev)); | |
1760 | return 0; | |
1761 | } | |
1762 | ||
1763 | void iscsi_host_for_each_session(struct Scsi_Host *shost, | |
1764 | void (*fn)(struct iscsi_cls_session *)) | |
1765 | { | |
1766 | device_for_each_child(&shost->shost_gendev, fn, | |
1767 | iscsi_iter_session_fn); | |
1768 | } | |
1769 | EXPORT_SYMBOL_GPL(iscsi_host_for_each_session); | |
1770 | ||
8aae18ad MC |
1771 | /** |
1772 | * iscsi_scan_finished - helper to report when running scans are done | |
1773 | * @shost: scsi host | |
1774 | * @time: scan run time | |
1775 | * | |
1776 | * This function can be used by drives like qla4xxx to report to the scsi | |
1777 | * layer when the scans it kicked off at module load time are done. | |
1778 | */ | |
1779 | int iscsi_scan_finished(struct Scsi_Host *shost, unsigned long time) | |
1780 | { | |
32c6e1b9 | 1781 | struct iscsi_cls_host *ihost = shost->shost_data; |
8aae18ad MC |
1782 | /* |
1783 | * qla4xxx will have kicked off some session unblocks before calling | |
1784 | * scsi_scan_host, so just wait for them to complete. | |
1785 | */ | |
1786 | return !atomic_read(&ihost->nr_scans); | |
1787 | } | |
1788 | EXPORT_SYMBOL_GPL(iscsi_scan_finished); | |
1789 | ||
7970634b MC |
1790 | struct iscsi_scan_data { |
1791 | unsigned int channel; | |
1792 | unsigned int id; | |
9cb78c16 | 1793 | u64 lun; |
1d645088 | 1794 | enum scsi_scan_mode rescan; |
7970634b MC |
1795 | }; |
1796 | ||
1797 | static int iscsi_user_scan_session(struct device *dev, void *data) | |
30a6c652 | 1798 | { |
7970634b | 1799 | struct iscsi_scan_data *scan_data = data; |
30a6c652 | 1800 | struct iscsi_cls_session *session; |
7970634b MC |
1801 | struct Scsi_Host *shost; |
1802 | struct iscsi_cls_host *ihost; | |
1803 | unsigned long flags; | |
1804 | unsigned int id; | |
1805 | ||
1806 | if (!iscsi_is_session_dev(dev)) | |
1807 | return 0; | |
1808 | ||
1809 | session = iscsi_dev_to_session(dev); | |
632248aa MC |
1810 | |
1811 | ISCSI_DBG_TRANS_SESSION(session, "Scanning session\n"); | |
1812 | ||
7970634b MC |
1813 | shost = iscsi_session_to_shost(session); |
1814 | ihost = shost->shost_data; | |
30a6c652 MC |
1815 | |
1816 | mutex_lock(&ihost->mutex); | |
7970634b MC |
1817 | spin_lock_irqsave(&session->lock, flags); |
1818 | if (session->state != ISCSI_SESSION_LOGGED_IN) { | |
1819 | spin_unlock_irqrestore(&session->lock, flags); | |
632248aa | 1820 | goto user_scan_exit; |
30a6c652 | 1821 | } |
7970634b MC |
1822 | id = session->target_id; |
1823 | spin_unlock_irqrestore(&session->lock, flags); | |
30a6c652 | 1824 | |
7970634b MC |
1825 | if (id != ISCSI_MAX_TARGET) { |
1826 | if ((scan_data->channel == SCAN_WILD_CARD || | |
1827 | scan_data->channel == 0) && | |
1828 | (scan_data->id == SCAN_WILD_CARD || | |
1829 | scan_data->id == id)) | |
1830 | scsi_scan_target(&session->dev, 0, id, | |
1d645088 | 1831 | scan_data->lun, scan_data->rescan); |
7970634b | 1832 | } |
632248aa MC |
1833 | |
1834 | user_scan_exit: | |
7970634b | 1835 | mutex_unlock(&ihost->mutex); |
632248aa | 1836 | ISCSI_DBG_TRANS_SESSION(session, "Completed session scan\n"); |
30a6c652 MC |
1837 | return 0; |
1838 | } | |
1839 | ||
7970634b | 1840 | static int iscsi_user_scan(struct Scsi_Host *shost, uint channel, |
9cb78c16 | 1841 | uint id, u64 lun) |
7970634b MC |
1842 | { |
1843 | struct iscsi_scan_data scan_data; | |
1844 | ||
1845 | scan_data.channel = channel; | |
1846 | scan_data.id = id; | |
1847 | scan_data.lun = lun; | |
1d645088 | 1848 | scan_data.rescan = SCSI_SCAN_MANUAL; |
7970634b MC |
1849 | |
1850 | return device_for_each_child(&shost->shost_gendev, &scan_data, | |
1851 | iscsi_user_scan_session); | |
1852 | } | |
1853 | ||
bd976f62 MC |
1854 | static void iscsi_scan_session(struct work_struct *work) |
1855 | { | |
1856 | struct iscsi_cls_session *session = | |
1857 | container_of(work, struct iscsi_cls_session, scan_work); | |
8aae18ad | 1858 | struct Scsi_Host *shost = iscsi_session_to_shost(session); |
32c6e1b9 | 1859 | struct iscsi_cls_host *ihost = shost->shost_data; |
7970634b | 1860 | struct iscsi_scan_data scan_data; |
bd976f62 | 1861 | |
7970634b MC |
1862 | scan_data.channel = 0; |
1863 | scan_data.id = SCAN_WILD_CARD; | |
1864 | scan_data.lun = SCAN_WILD_CARD; | |
1d645088 | 1865 | scan_data.rescan = SCSI_SCAN_RESCAN; |
bd976f62 | 1866 | |
7970634b | 1867 | iscsi_user_scan_session(&session->dev, &scan_data); |
8aae18ad | 1868 | atomic_dec(&ihost->nr_scans); |
bd976f62 MC |
1869 | } |
1870 | ||
c01be6dc MC |
1871 | /** |
1872 | * iscsi_block_scsi_eh - block scsi eh until session state has transistioned | |
e6d4ef45 | 1873 | * @cmd: scsi cmd passed to scsi eh handler |
c01be6dc MC |
1874 | * |
1875 | * If the session is down this function will wait for the recovery | |
1876 | * timer to fire or for the session to be logged back in. If the | |
1877 | * recovery timer fires then FAST_IO_FAIL is returned. The caller | |
1878 | * should pass this error value to the scsi eh. | |
1879 | */ | |
1880 | int iscsi_block_scsi_eh(struct scsi_cmnd *cmd) | |
1881 | { | |
1882 | struct iscsi_cls_session *session = | |
1883 | starget_to_session(scsi_target(cmd->device)); | |
1884 | unsigned long flags; | |
1885 | int ret = 0; | |
1886 | ||
1887 | spin_lock_irqsave(&session->lock, flags); | |
1888 | while (session->state != ISCSI_SESSION_LOGGED_IN) { | |
1889 | if (session->state == ISCSI_SESSION_FREE) { | |
1890 | ret = FAST_IO_FAIL; | |
1891 | break; | |
1892 | } | |
1893 | spin_unlock_irqrestore(&session->lock, flags); | |
1894 | msleep(1000); | |
1895 | spin_lock_irqsave(&session->lock, flags); | |
1896 | } | |
1897 | spin_unlock_irqrestore(&session->lock, flags); | |
1898 | return ret; | |
1899 | } | |
1900 | EXPORT_SYMBOL_GPL(iscsi_block_scsi_eh); | |
1901 | ||
c4028958 | 1902 | static void session_recovery_timedout(struct work_struct *work) |
30a6c652 | 1903 | { |
c4028958 DH |
1904 | struct iscsi_cls_session *session = |
1905 | container_of(work, struct iscsi_cls_session, | |
1906 | recovery_work.work); | |
6eabafbe | 1907 | unsigned long flags; |
30a6c652 | 1908 | |
322d739d MC |
1909 | iscsi_cls_session_printk(KERN_INFO, session, |
1910 | "session recovery timed out after %d secs\n", | |
1911 | session->recovery_tmo); | |
30a6c652 | 1912 | |
6eabafbe MC |
1913 | spin_lock_irqsave(&session->lock, flags); |
1914 | switch (session->state) { | |
1915 | case ISCSI_SESSION_FAILED: | |
1916 | session->state = ISCSI_SESSION_FREE; | |
1917 | break; | |
1918 | case ISCSI_SESSION_LOGGED_IN: | |
1919 | case ISCSI_SESSION_FREE: | |
1920 | /* we raced with the unblock's flush */ | |
1921 | spin_unlock_irqrestore(&session->lock, flags); | |
1922 | return; | |
1923 | } | |
1924 | spin_unlock_irqrestore(&session->lock, flags); | |
1925 | ||
30a6c652 MC |
1926 | if (session->transport->session_recovery_timedout) |
1927 | session->transport->session_recovery_timedout(session); | |
1928 | ||
632248aa | 1929 | ISCSI_DBG_TRANS_SESSION(session, "Unblocking SCSI target\n"); |
5d9fb5cc | 1930 | scsi_target_unblock(&session->dev, SDEV_TRANSPORT_OFFLINE); |
632248aa | 1931 | ISCSI_DBG_TRANS_SESSION(session, "Completed unblocking SCSI target\n"); |
30a6c652 MC |
1932 | } |
1933 | ||
45ab33b6 | 1934 | static void __iscsi_unblock_session(struct work_struct *work) |
6eabafbe | 1935 | { |
45ab33b6 MC |
1936 | struct iscsi_cls_session *session = |
1937 | container_of(work, struct iscsi_cls_session, | |
1938 | unblock_work); | |
bd976f62 | 1939 | struct Scsi_Host *shost = iscsi_session_to_shost(session); |
32c6e1b9 | 1940 | struct iscsi_cls_host *ihost = shost->shost_data; |
6eabafbe MC |
1941 | unsigned long flags; |
1942 | ||
632248aa | 1943 | ISCSI_DBG_TRANS_SESSION(session, "Unblocking session\n"); |
45ab33b6 MC |
1944 | /* |
1945 | * The recovery and unblock work get run from the same workqueue, | |
1946 | * so try to cancel it if it was going to run after this unblock. | |
1947 | */ | |
1948 | cancel_delayed_work(&session->recovery_work); | |
6eabafbe MC |
1949 | spin_lock_irqsave(&session->lock, flags); |
1950 | session->state = ISCSI_SESSION_LOGGED_IN; | |
1951 | spin_unlock_irqrestore(&session->lock, flags); | |
45ab33b6 | 1952 | /* start IO */ |
5d9fb5cc | 1953 | scsi_target_unblock(&session->dev, SDEV_RUNNING); |
8aae18ad MC |
1954 | /* |
1955 | * Only do kernel scanning if the driver is properly hooked into | |
1956 | * the async scanning code (drivers like iscsi_tcp do login and | |
1957 | * scanning from userspace). | |
1958 | */ | |
1959 | if (shost->hostt->scan_finished) { | |
06d25af4 | 1960 | if (scsi_queue_work(shost, &session->scan_work)) |
8aae18ad MC |
1961 | atomic_inc(&ihost->nr_scans); |
1962 | } | |
632248aa | 1963 | ISCSI_DBG_TRANS_SESSION(session, "Completed unblocking session\n"); |
6eabafbe | 1964 | } |
45ab33b6 MC |
1965 | |
1966 | /** | |
1967 | * iscsi_unblock_session - set a session as logged in and start IO. | |
1968 | * @session: iscsi session | |
1969 | * | |
1970 | * Mark a session as ready to accept IO. | |
1971 | */ | |
1972 | void iscsi_unblock_session(struct iscsi_cls_session *session) | |
1973 | { | |
1974 | queue_work(iscsi_eh_timer_workq, &session->unblock_work); | |
1975 | /* | |
1976 | * make sure all the events have completed before tell the driver | |
1977 | * it is safe | |
1978 | */ | |
1979 | flush_workqueue(iscsi_eh_timer_workq); | |
1980 | } | |
30a6c652 MC |
1981 | EXPORT_SYMBOL_GPL(iscsi_unblock_session); |
1982 | ||
45ab33b6 | 1983 | static void __iscsi_block_session(struct work_struct *work) |
30a6c652 | 1984 | { |
45ab33b6 MC |
1985 | struct iscsi_cls_session *session = |
1986 | container_of(work, struct iscsi_cls_session, | |
1987 | block_work); | |
6eabafbe MC |
1988 | unsigned long flags; |
1989 | ||
632248aa | 1990 | ISCSI_DBG_TRANS_SESSION(session, "Blocking session\n"); |
6eabafbe MC |
1991 | spin_lock_irqsave(&session->lock, flags); |
1992 | session->state = ISCSI_SESSION_FAILED; | |
1993 | spin_unlock_irqrestore(&session->lock, flags); | |
30a6c652 | 1994 | scsi_target_block(&session->dev); |
632248aa | 1995 | ISCSI_DBG_TRANS_SESSION(session, "Completed SCSI target blocking\n"); |
fdd46dcb MC |
1996 | if (session->recovery_tmo >= 0) |
1997 | queue_delayed_work(iscsi_eh_timer_workq, | |
1998 | &session->recovery_work, | |
1999 | session->recovery_tmo * HZ); | |
30a6c652 | 2000 | } |
45ab33b6 MC |
2001 | |
2002 | void iscsi_block_session(struct iscsi_cls_session *session) | |
2003 | { | |
2004 | queue_work(iscsi_eh_timer_workq, &session->block_work); | |
2005 | } | |
30a6c652 MC |
2006 | EXPORT_SYMBOL_GPL(iscsi_block_session); |
2007 | ||
26974789 MC |
2008 | static void __iscsi_unbind_session(struct work_struct *work) |
2009 | { | |
2010 | struct iscsi_cls_session *session = | |
2011 | container_of(work, struct iscsi_cls_session, | |
2012 | unbind_work); | |
2013 | struct Scsi_Host *shost = iscsi_session_to_shost(session); | |
32c6e1b9 | 2014 | struct iscsi_cls_host *ihost = shost->shost_data; |
7970634b | 2015 | unsigned long flags; |
8d4a690c | 2016 | unsigned int target_id; |
26974789 | 2017 | |
632248aa MC |
2018 | ISCSI_DBG_TRANS_SESSION(session, "Unbinding session\n"); |
2019 | ||
26974789 MC |
2020 | /* Prevent new scans and make sure scanning is not in progress */ |
2021 | mutex_lock(&ihost->mutex); | |
7970634b MC |
2022 | spin_lock_irqsave(&session->lock, flags); |
2023 | if (session->target_id == ISCSI_MAX_TARGET) { | |
2024 | spin_unlock_irqrestore(&session->lock, flags); | |
26974789 MC |
2025 | mutex_unlock(&ihost->mutex); |
2026 | return; | |
2027 | } | |
8d4a690c MC |
2028 | |
2029 | target_id = session->target_id; | |
7970634b MC |
2030 | session->target_id = ISCSI_MAX_TARGET; |
2031 | spin_unlock_irqrestore(&session->lock, flags); | |
26974789 MC |
2032 | mutex_unlock(&ihost->mutex); |
2033 | ||
8d4a690c MC |
2034 | if (session->ida_used) |
2035 | ida_simple_remove(&iscsi_sess_ida, target_id); | |
2036 | ||
26974789 MC |
2037 | scsi_remove_target(&session->dev); |
2038 | iscsi_session_event(session, ISCSI_KEVENT_UNBIND_SESSION); | |
632248aa | 2039 | ISCSI_DBG_TRANS_SESSION(session, "Completed target removal\n"); |
26974789 MC |
2040 | } |
2041 | ||
7b8631b5 | 2042 | struct iscsi_cls_session * |
5d91e209 MC |
2043 | iscsi_alloc_session(struct Scsi_Host *shost, struct iscsi_transport *transport, |
2044 | int dd_size) | |
7b8631b5 MC |
2045 | { |
2046 | struct iscsi_cls_session *session; | |
7b8631b5 | 2047 | |
5d91e209 | 2048 | session = kzalloc(sizeof(*session) + dd_size, |
b5c7a12d | 2049 | GFP_KERNEL); |
7b8631b5 | 2050 | if (!session) |
f53a88da MC |
2051 | return NULL; |
2052 | ||
7b8631b5 | 2053 | session->transport = transport; |
0c70d84b | 2054 | session->creator = -1; |
30a6c652 | 2055 | session->recovery_tmo = 120; |
9c8108a4 | 2056 | session->recovery_tmo_sysfs_override = false; |
6eabafbe | 2057 | session->state = ISCSI_SESSION_FREE; |
c4028958 | 2058 | INIT_DELAYED_WORK(&session->recovery_work, session_recovery_timedout); |
30a6c652 | 2059 | INIT_LIST_HEAD(&session->sess_list); |
45ab33b6 MC |
2060 | INIT_WORK(&session->unblock_work, __iscsi_unblock_session); |
2061 | INIT_WORK(&session->block_work, __iscsi_block_session); | |
26974789 | 2062 | INIT_WORK(&session->unbind_work, __iscsi_unbind_session); |
bd976f62 | 2063 | INIT_WORK(&session->scan_work, iscsi_scan_session); |
6eabafbe | 2064 | spin_lock_init(&session->lock); |
7b8631b5 | 2065 | |
6a8a0d36 MC |
2066 | /* this is released in the dev's release function */ |
2067 | scsi_host_get(shost); | |
8434aa8b MC |
2068 | session->dev.parent = &shost->shost_gendev; |
2069 | session->dev.release = iscsi_session_release; | |
2070 | device_initialize(&session->dev); | |
5d91e209 | 2071 | if (dd_size) |
b5c7a12d | 2072 | session->dd_data = &session[1]; |
632248aa MC |
2073 | |
2074 | ISCSI_DBG_TRANS_SESSION(session, "Completed session allocation\n"); | |
8434aa8b MC |
2075 | return session; |
2076 | } | |
2077 | EXPORT_SYMBOL_GPL(iscsi_alloc_session); | |
2078 | ||
6a8a0d36 | 2079 | int iscsi_add_session(struct iscsi_cls_session *session, unsigned int target_id) |
8434aa8b | 2080 | { |
26974789 | 2081 | unsigned long flags; |
8d4a690c | 2082 | int id = 0; |
8434aa8b | 2083 | int err; |
b5c7a12d | 2084 | |
41be1444 | 2085 | session->sid = atomic_add_return(1, &iscsi_session_nr); |
7970634b | 2086 | |
8d4a690c MC |
2087 | if (target_id == ISCSI_MAX_TARGET) { |
2088 | id = ida_simple_get(&iscsi_sess_ida, 0, 0, GFP_KERNEL); | |
7970634b | 2089 | |
8d4a690c | 2090 | if (id < 0) { |
7970634b | 2091 | iscsi_cls_session_printk(KERN_ERR, session, |
8d4a690c MC |
2092 | "Failure in Target ID Allocation\n"); |
2093 | return id; | |
7970634b | 2094 | } |
8d4a690c MC |
2095 | session->target_id = (unsigned int)id; |
2096 | session->ida_used = true; | |
2097 | } else | |
2098 | session->target_id = target_id; | |
30a6c652 | 2099 | |
71610f55 | 2100 | dev_set_name(&session->dev, "session%u", session->sid); |
8434aa8b | 2101 | err = device_add(&session->dev); |
7b8631b5 | 2102 | if (err) { |
322d739d MC |
2103 | iscsi_cls_session_printk(KERN_ERR, session, |
2104 | "could not register session's dev\n"); | |
8d4a690c | 2105 | goto release_ida; |
7b8631b5 MC |
2106 | } |
2107 | transport_register_device(&session->dev); | |
2108 | ||
26974789 MC |
2109 | spin_lock_irqsave(&sesslock, flags); |
2110 | list_add(&session->sess_list, &sesslist); | |
2111 | spin_unlock_irqrestore(&sesslock, flags); | |
2112 | ||
26974789 | 2113 | iscsi_session_event(session, ISCSI_KEVENT_CREATE_SESSION); |
632248aa | 2114 | ISCSI_DBG_TRANS_SESSION(session, "Completed session adding\n"); |
8434aa8b | 2115 | return 0; |
30a6c652 | 2116 | |
8d4a690c MC |
2117 | release_ida: |
2118 | if (session->ida_used) | |
2119 | ida_simple_remove(&iscsi_sess_ida, session->target_id); | |
2120 | ||
8434aa8b | 2121 | return err; |
7b8631b5 | 2122 | } |
8434aa8b | 2123 | EXPORT_SYMBOL_GPL(iscsi_add_session); |
7b8631b5 MC |
2124 | |
2125 | /** | |
8434aa8b MC |
2126 | * iscsi_create_session - create iscsi class session |
2127 | * @shost: scsi host | |
2128 | * @transport: iscsi transport | |
5d91e209 | 2129 | * @dd_size: private driver data size |
eb44820c | 2130 | * @target_id: which target |
7b8631b5 | 2131 | * |
8434aa8b | 2132 | * This can be called from a LLD or iscsi_transport. |
eb44820c | 2133 | */ |
8434aa8b | 2134 | struct iscsi_cls_session * |
5d91e209 MC |
2135 | iscsi_create_session(struct Scsi_Host *shost, struct iscsi_transport *transport, |
2136 | int dd_size, unsigned int target_id) | |
8434aa8b MC |
2137 | { |
2138 | struct iscsi_cls_session *session; | |
2139 | ||
5d91e209 | 2140 | session = iscsi_alloc_session(shost, transport, dd_size); |
8434aa8b MC |
2141 | if (!session) |
2142 | return NULL; | |
2143 | ||
6a8a0d36 | 2144 | if (iscsi_add_session(session, target_id)) { |
8434aa8b MC |
2145 | iscsi_free_session(session); |
2146 | return NULL; | |
2147 | } | |
2148 | return session; | |
2149 | } | |
2150 | EXPORT_SYMBOL_GPL(iscsi_create_session); | |
2151 | ||
26974789 MC |
2152 | static void iscsi_conn_release(struct device *dev) |
2153 | { | |
2154 | struct iscsi_cls_conn *conn = iscsi_dev_to_conn(dev); | |
2155 | struct device *parent = conn->dev.parent; | |
2156 | ||
632248aa | 2157 | ISCSI_DBG_TRANS_CONN(conn, "Releasing conn\n"); |
26974789 MC |
2158 | kfree(conn); |
2159 | put_device(parent); | |
2160 | } | |
2161 | ||
2162 | static int iscsi_is_conn_dev(const struct device *dev) | |
2163 | { | |
2164 | return dev->release == iscsi_conn_release; | |
2165 | } | |
2166 | ||
2167 | static int iscsi_iter_destroy_conn_fn(struct device *dev, void *data) | |
2168 | { | |
2169 | if (!iscsi_is_conn_dev(dev)) | |
2170 | return 0; | |
2171 | return iscsi_destroy_conn(iscsi_dev_to_conn(dev)); | |
2172 | } | |
2173 | ||
8434aa8b | 2174 | void iscsi_remove_session(struct iscsi_cls_session *session) |
7b8631b5 | 2175 | { |
26974789 MC |
2176 | unsigned long flags; |
2177 | int err; | |
2178 | ||
632248aa MC |
2179 | ISCSI_DBG_TRANS_SESSION(session, "Removing session\n"); |
2180 | ||
26974789 MC |
2181 | spin_lock_irqsave(&sesslock, flags); |
2182 | list_del(&session->sess_list); | |
2183 | spin_unlock_irqrestore(&sesslock, flags); | |
30a6c652 | 2184 | |
45ab33b6 MC |
2185 | /* make sure there are no blocks/unblocks queued */ |
2186 | flush_workqueue(iscsi_eh_timer_workq); | |
2187 | /* make sure the timedout callout is not running */ | |
2188 | if (!cancel_delayed_work(&session->recovery_work)) | |
2189 | flush_workqueue(iscsi_eh_timer_workq); | |
26974789 MC |
2190 | /* |
2191 | * If we are blocked let commands flow again. The lld or iscsi | |
2192 | * layer should set up the queuecommand to fail commands. | |
45ab33b6 MC |
2193 | * We assume that LLD will not be calling block/unblock while |
2194 | * removing the session. | |
26974789 | 2195 | */ |
6eabafbe MC |
2196 | spin_lock_irqsave(&session->lock, flags); |
2197 | session->state = ISCSI_SESSION_FREE; | |
2198 | spin_unlock_irqrestore(&session->lock, flags); | |
bd976f62 | 2199 | |
5d9fb5cc | 2200 | scsi_target_unblock(&session->dev, SDEV_TRANSPORT_OFFLINE); |
45ab33b6 | 2201 | /* flush running scans then delete devices */ |
90e96313 | 2202 | flush_work(&session->scan_work); |
165aa2bf ML |
2203 | /* flush running unbind operations */ |
2204 | flush_work(&session->unbind_work); | |
45ab33b6 | 2205 | __iscsi_unbind_session(&session->unbind_work); |
30a6c652 | 2206 | |
26974789 MC |
2207 | /* hw iscsi may not have removed all connections from session */ |
2208 | err = device_for_each_child(&session->dev, NULL, | |
2209 | iscsi_iter_destroy_conn_fn); | |
2210 | if (err) | |
322d739d MC |
2211 | iscsi_cls_session_printk(KERN_ERR, session, |
2212 | "Could not delete all connections " | |
2213 | "for session. Error %d.\n", err); | |
8434aa8b | 2214 | |
7b8631b5 | 2215 | transport_unregister_device(&session->dev); |
632248aa MC |
2216 | |
2217 | ISCSI_DBG_TRANS_SESSION(session, "Completing session removal\n"); | |
8434aa8b MC |
2218 | device_del(&session->dev); |
2219 | } | |
2220 | EXPORT_SYMBOL_GPL(iscsi_remove_session); | |
2221 | ||
2222 | void iscsi_free_session(struct iscsi_cls_session *session) | |
2223 | { | |
632248aa | 2224 | ISCSI_DBG_TRANS_SESSION(session, "Freeing session\n"); |
26974789 | 2225 | iscsi_session_event(session, ISCSI_KEVENT_DESTROY_SESSION); |
8434aa8b | 2226 | put_device(&session->dev); |
7b8631b5 | 2227 | } |
8434aa8b MC |
2228 | EXPORT_SYMBOL_GPL(iscsi_free_session); |
2229 | ||
7b8631b5 MC |
2230 | /** |
2231 | * iscsi_create_conn - create iscsi class connection | |
2232 | * @session: iscsi cls session | |
5d91e209 | 2233 | * @dd_size: private driver data size |
7b8631b5 MC |
2234 | * @cid: connection id |
2235 | * | |
2236 | * This can be called from a LLD or iscsi_transport. The connection | |
2237 | * is child of the session so cid must be unique for all connections | |
2238 | * on the session. | |
b5c7a12d MC |
2239 | * |
2240 | * Since we do not support MCS, cid will normally be zero. In some cases | |
2241 | * for software iscsi we could be trying to preallocate a connection struct | |
2242 | * in which case there could be two connection structs and cid would be | |
2243 | * non-zero. | |
eb44820c | 2244 | */ |
7b8631b5 | 2245 | struct iscsi_cls_conn * |
5d91e209 | 2246 | iscsi_create_conn(struct iscsi_cls_session *session, int dd_size, uint32_t cid) |
7b8631b5 MC |
2247 | { |
2248 | struct iscsi_transport *transport = session->transport; | |
7b8631b5 | 2249 | struct iscsi_cls_conn *conn; |
26974789 | 2250 | unsigned long flags; |
7b8631b5 MC |
2251 | int err; |
2252 | ||
5d91e209 | 2253 | conn = kzalloc(sizeof(*conn) + dd_size, GFP_KERNEL); |
7b8631b5 MC |
2254 | if (!conn) |
2255 | return NULL; | |
5d91e209 | 2256 | if (dd_size) |
7b8631b5 MC |
2257 | conn->dd_data = &conn[1]; |
2258 | ||
22a39fbb | 2259 | mutex_init(&conn->ep_mutex); |
7b8631b5 MC |
2260 | INIT_LIST_HEAD(&conn->conn_list); |
2261 | conn->transport = transport; | |
b5c7a12d | 2262 | conn->cid = cid; |
7b8631b5 MC |
2263 | |
2264 | /* this is released in the dev's release function */ | |
2265 | if (!get_device(&session->dev)) | |
43a145a3 | 2266 | goto free_conn; |
b5c7a12d | 2267 | |
71610f55 | 2268 | dev_set_name(&conn->dev, "connection%d:%u", session->sid, cid); |
7b8631b5 MC |
2269 | conn->dev.parent = &session->dev; |
2270 | conn->dev.release = iscsi_conn_release; | |
2271 | err = device_register(&conn->dev); | |
2272 | if (err) { | |
322d739d MC |
2273 | iscsi_cls_session_printk(KERN_ERR, session, "could not " |
2274 | "register connection's dev\n"); | |
7b8631b5 MC |
2275 | goto release_parent_ref; |
2276 | } | |
2277 | transport_register_device(&conn->dev); | |
26974789 MC |
2278 | |
2279 | spin_lock_irqsave(&connlock, flags); | |
2280 | list_add(&conn->conn_list, &connlist); | |
26974789 | 2281 | spin_unlock_irqrestore(&connlock, flags); |
632248aa MC |
2282 | |
2283 | ISCSI_DBG_TRANS_CONN(conn, "Completed conn creation\n"); | |
7b8631b5 MC |
2284 | return conn; |
2285 | ||
2286 | release_parent_ref: | |
2287 | put_device(&session->dev); | |
2288 | free_conn: | |
2289 | kfree(conn); | |
2290 | return NULL; | |
2291 | } | |
2292 | ||
2293 | EXPORT_SYMBOL_GPL(iscsi_create_conn); | |
2294 | ||
2295 | /** | |
2296 | * iscsi_destroy_conn - destroy iscsi class connection | |
eb44820c | 2297 | * @conn: iscsi cls session |
7b8631b5 | 2298 | * |
26974789 | 2299 | * This can be called from a LLD or iscsi_transport. |
eb44820c | 2300 | */ |
7b8631b5 MC |
2301 | int iscsi_destroy_conn(struct iscsi_cls_conn *conn) |
2302 | { | |
26974789 MC |
2303 | unsigned long flags; |
2304 | ||
2305 | spin_lock_irqsave(&connlock, flags); | |
26974789 MC |
2306 | list_del(&conn->conn_list); |
2307 | spin_unlock_irqrestore(&connlock, flags); | |
2308 | ||
7b8631b5 | 2309 | transport_unregister_device(&conn->dev); |
632248aa | 2310 | ISCSI_DBG_TRANS_CONN(conn, "Completing conn destruction\n"); |
7b8631b5 MC |
2311 | device_unregister(&conn->dev); |
2312 | return 0; | |
2313 | } | |
7b8631b5 MC |
2314 | EXPORT_SYMBOL_GPL(iscsi_destroy_conn); |
2315 | ||
7b8631b5 MC |
2316 | /* |
2317 | * iscsi interface functions | |
2318 | */ | |
0896b752 AA |
2319 | static struct iscsi_internal * |
2320 | iscsi_if_transport_lookup(struct iscsi_transport *tt) | |
2321 | { | |
2322 | struct iscsi_internal *priv; | |
2323 | unsigned long flags; | |
2324 | ||
2325 | spin_lock_irqsave(&iscsi_transport_lock, flags); | |
2326 | list_for_each_entry(priv, &iscsi_transports, list) { | |
2327 | if (tt == priv->iscsi_transport) { | |
2328 | spin_unlock_irqrestore(&iscsi_transport_lock, flags); | |
2329 | return priv; | |
2330 | } | |
2331 | } | |
2332 | spin_unlock_irqrestore(&iscsi_transport_lock, flags); | |
2333 | return NULL; | |
2334 | } | |
1da177e4 | 2335 | |
53cb8a1f | 2336 | static int |
43514774 | 2337 | iscsi_multicast_skb(struct sk_buff *skb, uint32_t group, gfp_t gfp) |
53cb8a1f | 2338 | { |
43514774 | 2339 | return nlmsg_multicast(nls, skb, 0, group, gfp); |
1da177e4 | 2340 | } |
1da177e4 | 2341 | |
af170928 CL |
2342 | static int |
2343 | iscsi_unicast_skb(struct sk_buff *skb, u32 portid) | |
2344 | { | |
2345 | return nlmsg_unicast(nls, skb, portid); | |
2346 | } | |
2347 | ||
7b7232f3 | 2348 | int iscsi_recv_pdu(struct iscsi_cls_conn *conn, struct iscsi_hdr *hdr, |
0896b752 | 2349 | char *data, uint32_t data_size) |
1da177e4 | 2350 | { |
0896b752 AA |
2351 | struct nlmsghdr *nlh; |
2352 | struct sk_buff *skb; | |
2353 | struct iscsi_uevent *ev; | |
0896b752 | 2354 | char *pdu; |
790f39a2 | 2355 | struct iscsi_internal *priv; |
e07ebea0 H |
2356 | int len = nlmsg_total_size(sizeof(*ev) + sizeof(struct iscsi_hdr) + |
2357 | data_size); | |
0896b752 | 2358 | |
790f39a2 MC |
2359 | priv = iscsi_if_transport_lookup(conn->transport); |
2360 | if (!priv) | |
2361 | return -EINVAL; | |
2362 | ||
43a145a3 | 2363 | skb = alloc_skb(len, GFP_ATOMIC); |
0896b752 | 2364 | if (!skb) { |
e5bd7b54 | 2365 | iscsi_conn_error_event(conn, ISCSI_ERR_CONN_FAILED); |
322d739d MC |
2366 | iscsi_cls_conn_printk(KERN_ERR, conn, "can not deliver " |
2367 | "control PDU: OOM\n"); | |
0896b752 AA |
2368 | return -ENOMEM; |
2369 | } | |
1da177e4 | 2370 | |
43514774 | 2371 | nlh = __nlmsg_put(skb, 0, 0, 0, (len - sizeof(*nlh)), 0); |
e07ebea0 | 2372 | ev = nlmsg_data(nlh); |
0896b752 AA |
2373 | memset(ev, 0, sizeof(*ev)); |
2374 | ev->transport_handle = iscsi_handle(conn->transport); | |
2375 | ev->type = ISCSI_KEVENT_RECV_PDU; | |
b5c7a12d MC |
2376 | ev->r.recv_req.cid = conn->cid; |
2377 | ev->r.recv_req.sid = iscsi_conn_get_sid(conn); | |
0896b752 AA |
2378 | pdu = (char*)ev + sizeof(*ev); |
2379 | memcpy(pdu, hdr, sizeof(struct iscsi_hdr)); | |
2380 | memcpy(pdu + sizeof(struct iscsi_hdr), data, data_size); | |
1da177e4 | 2381 | |
43514774 | 2382 | return iscsi_multicast_skb(skb, ISCSI_NL_GRP_ISCSID, GFP_ATOMIC); |
1da177e4 | 2383 | } |
0896b752 | 2384 | EXPORT_SYMBOL_GPL(iscsi_recv_pdu); |
1da177e4 | 2385 | |
43514774 MC |
2386 | int iscsi_offload_mesg(struct Scsi_Host *shost, |
2387 | struct iscsi_transport *transport, uint32_t type, | |
2388 | char *data, uint16_t data_size) | |
2389 | { | |
2390 | struct nlmsghdr *nlh; | |
2391 | struct sk_buff *skb; | |
2392 | struct iscsi_uevent *ev; | |
e07ebea0 | 2393 | int len = nlmsg_total_size(sizeof(*ev) + data_size); |
43514774 | 2394 | |
a541f840 | 2395 | skb = alloc_skb(len, GFP_ATOMIC); |
43514774 MC |
2396 | if (!skb) { |
2397 | printk(KERN_ERR "can not deliver iscsi offload message:OOM\n"); | |
2398 | return -ENOMEM; | |
2399 | } | |
2400 | ||
2401 | nlh = __nlmsg_put(skb, 0, 0, 0, (len - sizeof(*nlh)), 0); | |
e07ebea0 | 2402 | ev = nlmsg_data(nlh); |
43514774 MC |
2403 | memset(ev, 0, sizeof(*ev)); |
2404 | ev->type = type; | |
2405 | ev->transport_handle = iscsi_handle(transport); | |
2406 | switch (type) { | |
2407 | case ISCSI_KEVENT_PATH_REQ: | |
2408 | ev->r.req_path.host_no = shost->host_no; | |
2409 | break; | |
2410 | case ISCSI_KEVENT_IF_DOWN: | |
2411 | ev->r.notify_if_down.host_no = shost->host_no; | |
2412 | break; | |
2413 | } | |
2414 | ||
2415 | memcpy((char *)ev + sizeof(*ev), data, data_size); | |
2416 | ||
a541f840 | 2417 | return iscsi_multicast_skb(skb, ISCSI_NL_GRP_UIP, GFP_ATOMIC); |
43514774 MC |
2418 | } |
2419 | EXPORT_SYMBOL_GPL(iscsi_offload_mesg); | |
2420 | ||
e5bd7b54 | 2421 | void iscsi_conn_error_event(struct iscsi_cls_conn *conn, enum iscsi_err error) |
1da177e4 | 2422 | { |
0896b752 AA |
2423 | struct nlmsghdr *nlh; |
2424 | struct sk_buff *skb; | |
2425 | struct iscsi_uevent *ev; | |
790f39a2 | 2426 | struct iscsi_internal *priv; |
e07ebea0 | 2427 | int len = nlmsg_total_size(sizeof(*ev)); |
0896b752 | 2428 | |
790f39a2 MC |
2429 | priv = iscsi_if_transport_lookup(conn->transport); |
2430 | if (!priv) | |
2431 | return; | |
2432 | ||
43a145a3 | 2433 | skb = alloc_skb(len, GFP_ATOMIC); |
0896b752 | 2434 | if (!skb) { |
322d739d MC |
2435 | iscsi_cls_conn_printk(KERN_ERR, conn, "gracefully ignored " |
2436 | "conn error (%d)\n", error); | |
0896b752 AA |
2437 | return; |
2438 | } | |
2439 | ||
43514774 | 2440 | nlh = __nlmsg_put(skb, 0, 0, 0, (len - sizeof(*nlh)), 0); |
e07ebea0 | 2441 | ev = nlmsg_data(nlh); |
0896b752 AA |
2442 | ev->transport_handle = iscsi_handle(conn->transport); |
2443 | ev->type = ISCSI_KEVENT_CONN_ERROR; | |
0896b752 | 2444 | ev->r.connerror.error = error; |
b5c7a12d MC |
2445 | ev->r.connerror.cid = conn->cid; |
2446 | ev->r.connerror.sid = iscsi_conn_get_sid(conn); | |
1da177e4 | 2447 | |
43514774 | 2448 | iscsi_multicast_skb(skb, ISCSI_NL_GRP_ISCSID, GFP_ATOMIC); |
1da177e4 | 2449 | |
322d739d MC |
2450 | iscsi_cls_conn_printk(KERN_INFO, conn, "detected conn error (%d)\n", |
2451 | error); | |
0896b752 | 2452 | } |
e5bd7b54 | 2453 | EXPORT_SYMBOL_GPL(iscsi_conn_error_event); |
0896b752 | 2454 | |
17fa575e MR |
2455 | void iscsi_conn_login_event(struct iscsi_cls_conn *conn, |
2456 | enum iscsi_conn_state state) | |
2457 | { | |
2458 | struct nlmsghdr *nlh; | |
2459 | struct sk_buff *skb; | |
2460 | struct iscsi_uevent *ev; | |
2461 | struct iscsi_internal *priv; | |
e07ebea0 | 2462 | int len = nlmsg_total_size(sizeof(*ev)); |
17fa575e MR |
2463 | |
2464 | priv = iscsi_if_transport_lookup(conn->transport); | |
2465 | if (!priv) | |
2466 | return; | |
2467 | ||
2468 | skb = alloc_skb(len, GFP_ATOMIC); | |
2469 | if (!skb) { | |
2470 | iscsi_cls_conn_printk(KERN_ERR, conn, "gracefully ignored " | |
2471 | "conn login (%d)\n", state); | |
2472 | return; | |
2473 | } | |
2474 | ||
2475 | nlh = __nlmsg_put(skb, 0, 0, 0, (len - sizeof(*nlh)), 0); | |
e07ebea0 | 2476 | ev = nlmsg_data(nlh); |
17fa575e MR |
2477 | ev->transport_handle = iscsi_handle(conn->transport); |
2478 | ev->type = ISCSI_KEVENT_CONN_LOGIN_STATE; | |
2479 | ev->r.conn_login.state = state; | |
2480 | ev->r.conn_login.cid = conn->cid; | |
2481 | ev->r.conn_login.sid = iscsi_conn_get_sid(conn); | |
2482 | iscsi_multicast_skb(skb, ISCSI_NL_GRP_ISCSID, GFP_ATOMIC); | |
2483 | ||
2484 | iscsi_cls_conn_printk(KERN_INFO, conn, "detected conn login (%d)\n", | |
2485 | state); | |
2486 | } | |
2487 | EXPORT_SYMBOL_GPL(iscsi_conn_login_event); | |
2488 | ||
a11e2545 VC |
2489 | void iscsi_post_host_event(uint32_t host_no, struct iscsi_transport *transport, |
2490 | enum iscsi_host_event_code code, uint32_t data_size, | |
2491 | uint8_t *data) | |
2492 | { | |
2493 | struct nlmsghdr *nlh; | |
2494 | struct sk_buff *skb; | |
2495 | struct iscsi_uevent *ev; | |
e07ebea0 | 2496 | int len = nlmsg_total_size(sizeof(*ev) + data_size); |
a11e2545 | 2497 | |
49d0e64b | 2498 | skb = alloc_skb(len, GFP_NOIO); |
a11e2545 VC |
2499 | if (!skb) { |
2500 | printk(KERN_ERR "gracefully ignored host event (%d):%d OOM\n", | |
2501 | host_no, code); | |
2502 | return; | |
2503 | } | |
2504 | ||
2505 | nlh = __nlmsg_put(skb, 0, 0, 0, (len - sizeof(*nlh)), 0); | |
e07ebea0 | 2506 | ev = nlmsg_data(nlh); |
a11e2545 VC |
2507 | ev->transport_handle = iscsi_handle(transport); |
2508 | ev->type = ISCSI_KEVENT_HOST_EVENT; | |
2509 | ev->r.host_event.host_no = host_no; | |
2510 | ev->r.host_event.code = code; | |
2511 | ev->r.host_event.data_size = data_size; | |
2512 | ||
2513 | if (data_size) | |
2514 | memcpy((char *)ev + sizeof(*ev), data, data_size); | |
2515 | ||
49d0e64b | 2516 | iscsi_multicast_skb(skb, ISCSI_NL_GRP_ISCSID, GFP_NOIO); |
a11e2545 VC |
2517 | } |
2518 | EXPORT_SYMBOL_GPL(iscsi_post_host_event); | |
2519 | ||
ac20c7bf VC |
2520 | void iscsi_ping_comp_event(uint32_t host_no, struct iscsi_transport *transport, |
2521 | uint32_t status, uint32_t pid, uint32_t data_size, | |
2522 | uint8_t *data) | |
2523 | { | |
2524 | struct nlmsghdr *nlh; | |
2525 | struct sk_buff *skb; | |
2526 | struct iscsi_uevent *ev; | |
e07ebea0 | 2527 | int len = nlmsg_total_size(sizeof(*ev) + data_size); |
ac20c7bf | 2528 | |
49d0e64b | 2529 | skb = alloc_skb(len, GFP_NOIO); |
ac20c7bf VC |
2530 | if (!skb) { |
2531 | printk(KERN_ERR "gracefully ignored ping comp: OOM\n"); | |
2532 | return; | |
2533 | } | |
2534 | ||
2535 | nlh = __nlmsg_put(skb, 0, 0, 0, (len - sizeof(*nlh)), 0); | |
e07ebea0 | 2536 | ev = nlmsg_data(nlh); |
ac20c7bf VC |
2537 | ev->transport_handle = iscsi_handle(transport); |
2538 | ev->type = ISCSI_KEVENT_PING_COMP; | |
2539 | ev->r.ping_comp.host_no = host_no; | |
2540 | ev->r.ping_comp.status = status; | |
2541 | ev->r.ping_comp.pid = pid; | |
2542 | ev->r.ping_comp.data_size = data_size; | |
2543 | memcpy((char *)ev + sizeof(*ev), data, data_size); | |
2544 | ||
49d0e64b | 2545 | iscsi_multicast_skb(skb, ISCSI_NL_GRP_ISCSID, GFP_NOIO); |
ac20c7bf VC |
2546 | } |
2547 | EXPORT_SYMBOL_GPL(iscsi_ping_comp_event); | |
2548 | ||
0896b752 | 2549 | static int |
af170928 | 2550 | iscsi_if_send_reply(u32 portid, int type, void *payload, int size) |
0896b752 AA |
2551 | { |
2552 | struct sk_buff *skb; | |
2553 | struct nlmsghdr *nlh; | |
e07ebea0 | 2554 | int len = nlmsg_total_size(size); |
0896b752 | 2555 | |
43a145a3 | 2556 | skb = alloc_skb(len, GFP_ATOMIC); |
239a7dc2 MC |
2557 | if (!skb) { |
2558 | printk(KERN_ERR "Could not allocate skb to send reply.\n"); | |
2559 | return -ENOMEM; | |
2560 | } | |
0896b752 | 2561 | |
af170928 | 2562 | nlh = __nlmsg_put(skb, 0, 0, type, (len - sizeof(*nlh)), 0); |
e07ebea0 | 2563 | memcpy(nlmsg_data(nlh), payload, size); |
af170928 | 2564 | return iscsi_unicast_skb(skb, portid); |
1da177e4 | 2565 | } |
1da177e4 | 2566 | |
7b8631b5 | 2567 | static int |
5b940adf | 2568 | iscsi_if_get_stats(struct iscsi_transport *transport, struct nlmsghdr *nlh) |
7b8631b5 | 2569 | { |
e07ebea0 | 2570 | struct iscsi_uevent *ev = nlmsg_data(nlh); |
7b8631b5 MC |
2571 | struct iscsi_stats *stats; |
2572 | struct sk_buff *skbstat; | |
2573 | struct iscsi_cls_conn *conn; | |
2574 | struct nlmsghdr *nlhstat; | |
2575 | struct iscsi_uevent *evstat; | |
790f39a2 | 2576 | struct iscsi_internal *priv; |
e07ebea0 H |
2577 | int len = nlmsg_total_size(sizeof(*ev) + |
2578 | sizeof(struct iscsi_stats) + | |
2579 | sizeof(struct iscsi_stats_custom) * | |
2580 | ISCSI_STATS_CUSTOM_MAX); | |
7b8631b5 | 2581 | int err = 0; |
0896b752 | 2582 | |
790f39a2 MC |
2583 | priv = iscsi_if_transport_lookup(transport); |
2584 | if (!priv) | |
2585 | return -EINVAL; | |
2586 | ||
b5c7a12d | 2587 | conn = iscsi_conn_lookup(ev->u.get_stats.sid, ev->u.get_stats.cid); |
7b8631b5 MC |
2588 | if (!conn) |
2589 | return -EEXIST; | |
0896b752 | 2590 | |
7b8631b5 MC |
2591 | do { |
2592 | int actual_size; | |
0896b752 | 2593 | |
43a145a3 | 2594 | skbstat = alloc_skb(len, GFP_ATOMIC); |
7b8631b5 | 2595 | if (!skbstat) { |
322d739d MC |
2596 | iscsi_cls_conn_printk(KERN_ERR, conn, "can not " |
2597 | "deliver stats: OOM\n"); | |
7b8631b5 MC |
2598 | return -ENOMEM; |
2599 | } | |
2600 | ||
43514774 | 2601 | nlhstat = __nlmsg_put(skbstat, 0, 0, 0, |
7b8631b5 | 2602 | (len - sizeof(*nlhstat)), 0); |
e07ebea0 | 2603 | evstat = nlmsg_data(nlhstat); |
7b8631b5 MC |
2604 | memset(evstat, 0, sizeof(*evstat)); |
2605 | evstat->transport_handle = iscsi_handle(conn->transport); | |
2606 | evstat->type = nlh->nlmsg_type; | |
b5c7a12d MC |
2607 | evstat->u.get_stats.cid = |
2608 | ev->u.get_stats.cid; | |
2609 | evstat->u.get_stats.sid = | |
2610 | ev->u.get_stats.sid; | |
7b8631b5 MC |
2611 | stats = (struct iscsi_stats *) |
2612 | ((char*)evstat + sizeof(*evstat)); | |
2613 | memset(stats, 0, sizeof(*stats)); | |
2614 | ||
7b7232f3 | 2615 | transport->get_stats(conn, stats); |
e07ebea0 H |
2616 | actual_size = nlmsg_total_size(sizeof(struct iscsi_uevent) + |
2617 | sizeof(struct iscsi_stats) + | |
2618 | sizeof(struct iscsi_stats_custom) * | |
2619 | stats->custom_length); | |
7b8631b5 | 2620 | actual_size -= sizeof(*nlhstat); |
e07ebea0 | 2621 | actual_size = nlmsg_msg_size(actual_size); |
5b940adf | 2622 | skb_trim(skbstat, NLMSG_ALIGN(actual_size)); |
7b8631b5 MC |
2623 | nlhstat->nlmsg_len = actual_size; |
2624 | ||
43514774 MC |
2625 | err = iscsi_multicast_skb(skbstat, ISCSI_NL_GRP_ISCSID, |
2626 | GFP_ATOMIC); | |
7b8631b5 MC |
2627 | } while (err < 0 && err != -ECONNREFUSED); |
2628 | ||
2629 | return err; | |
0896b752 AA |
2630 | } |
2631 | ||
53cb8a1f | 2632 | /** |
26974789 MC |
2633 | * iscsi_session_event - send session destr. completion event |
2634 | * @session: iscsi class session | |
2635 | * @event: type of event | |
eb44820c | 2636 | */ |
26974789 MC |
2637 | int iscsi_session_event(struct iscsi_cls_session *session, |
2638 | enum iscsi_uevent_e event) | |
53cb8a1f MC |
2639 | { |
2640 | struct iscsi_internal *priv; | |
53cb8a1f MC |
2641 | struct Scsi_Host *shost; |
2642 | struct iscsi_uevent *ev; | |
2643 | struct sk_buff *skb; | |
2644 | struct nlmsghdr *nlh; | |
e07ebea0 | 2645 | int rc, len = nlmsg_total_size(sizeof(*ev)); |
53cb8a1f | 2646 | |
26974789 | 2647 | priv = iscsi_if_transport_lookup(session->transport); |
53cb8a1f MC |
2648 | if (!priv) |
2649 | return -EINVAL; | |
53cb8a1f MC |
2650 | shost = iscsi_session_to_shost(session); |
2651 | ||
43a145a3 | 2652 | skb = alloc_skb(len, GFP_KERNEL); |
53cb8a1f | 2653 | if (!skb) { |
322d739d MC |
2654 | iscsi_cls_session_printk(KERN_ERR, session, |
2655 | "Cannot notify userspace of session " | |
2656 | "event %u\n", event); | |
53cb8a1f MC |
2657 | return -ENOMEM; |
2658 | } | |
2659 | ||
43514774 | 2660 | nlh = __nlmsg_put(skb, 0, 0, 0, (len - sizeof(*nlh)), 0); |
e07ebea0 | 2661 | ev = nlmsg_data(nlh); |
26974789 | 2662 | ev->transport_handle = iscsi_handle(session->transport); |
53cb8a1f | 2663 | |
26974789 MC |
2664 | ev->type = event; |
2665 | switch (event) { | |
2666 | case ISCSI_KEVENT_DESTROY_SESSION: | |
2667 | ev->r.d_session.host_no = shost->host_no; | |
2668 | ev->r.d_session.sid = session->sid; | |
2669 | break; | |
2670 | case ISCSI_KEVENT_CREATE_SESSION: | |
2671 | ev->r.c_session_ret.host_no = shost->host_no; | |
2672 | ev->r.c_session_ret.sid = session->sid; | |
2673 | break; | |
2674 | case ISCSI_KEVENT_UNBIND_SESSION: | |
2675 | ev->r.unbind_session.host_no = shost->host_no; | |
2676 | ev->r.unbind_session.sid = session->sid; | |
2677 | break; | |
2678 | default: | |
322d739d MC |
2679 | iscsi_cls_session_printk(KERN_ERR, session, "Invalid event " |
2680 | "%u.\n", event); | |
26974789 | 2681 | kfree_skb(skb); |
53cb8a1f | 2682 | return -EINVAL; |
53cb8a1f MC |
2683 | } |
2684 | ||
53cb8a1f MC |
2685 | /* |
2686 | * this will occur if the daemon is not up, so we just warn | |
2687 | * the user and when the daemon is restarted it will handle it | |
2688 | */ | |
43514774 | 2689 | rc = iscsi_multicast_skb(skb, ISCSI_NL_GRP_ISCSID, GFP_KERNEL); |
ff491a73 | 2690 | if (rc == -ESRCH) |
322d739d MC |
2691 | iscsi_cls_session_printk(KERN_ERR, session, |
2692 | "Cannot notify userspace of session " | |
2693 | "event %u. Check iscsi daemon\n", | |
2694 | event); | |
632248aa MC |
2695 | |
2696 | ISCSI_DBG_TRANS_SESSION(session, "Completed handling event %d rc %d\n", | |
2697 | event, rc); | |
53cb8a1f MC |
2698 | return rc; |
2699 | } | |
26974789 | 2700 | EXPORT_SYMBOL_GPL(iscsi_session_event); |
53cb8a1f | 2701 | |
0896b752 | 2702 | static int |
d82ff9be | 2703 | iscsi_if_create_session(struct iscsi_internal *priv, struct iscsi_endpoint *ep, |
0c70d84b MC |
2704 | struct iscsi_uevent *ev, pid_t pid, |
2705 | uint32_t initial_cmdsn, uint16_t cmds_max, | |
2706 | uint16_t queue_depth) | |
0896b752 AA |
2707 | { |
2708 | struct iscsi_transport *transport = priv->iscsi_transport; | |
7b7232f3 | 2709 | struct iscsi_cls_session *session; |
5e7facb7 | 2710 | struct Scsi_Host *shost; |
0896b752 | 2711 | |
d82ff9be | 2712 | session = transport->create_session(ep, cmds_max, queue_depth, |
5e7facb7 | 2713 | initial_cmdsn); |
7b7232f3 | 2714 | if (!session) |
7b8631b5 | 2715 | return -ENOMEM; |
0896b752 | 2716 | |
0c70d84b | 2717 | session->creator = pid; |
5e7facb7 MC |
2718 | shost = iscsi_session_to_shost(session); |
2719 | ev->r.c_session_ret.host_no = shost->host_no; | |
b5c7a12d | 2720 | ev->r.c_session_ret.sid = session->sid; |
632248aa MC |
2721 | ISCSI_DBG_TRANS_SESSION(session, |
2722 | "Completed creating transport session\n"); | |
0896b752 | 2723 | return 0; |
0896b752 AA |
2724 | } |
2725 | ||
2726 | static int | |
7b7232f3 | 2727 | iscsi_if_create_conn(struct iscsi_transport *transport, struct iscsi_uevent *ev) |
0896b752 | 2728 | { |
7b8631b5 | 2729 | struct iscsi_cls_conn *conn; |
7b7232f3 | 2730 | struct iscsi_cls_session *session; |
7b8631b5 | 2731 | |
b5c7a12d MC |
2732 | session = iscsi_session_lookup(ev->u.c_conn.sid); |
2733 | if (!session) { | |
322d739d | 2734 | printk(KERN_ERR "iscsi: invalid session %d.\n", |
b5c7a12d | 2735 | ev->u.c_conn.sid); |
7b8631b5 | 2736 | return -EINVAL; |
b5c7a12d | 2737 | } |
0896b752 | 2738 | |
7b7232f3 | 2739 | conn = transport->create_conn(session, ev->u.c_conn.cid); |
b5c7a12d | 2740 | if (!conn) { |
322d739d MC |
2741 | iscsi_cls_session_printk(KERN_ERR, session, |
2742 | "couldn't create a new connection."); | |
7b7232f3 | 2743 | return -ENOMEM; |
b5c7a12d | 2744 | } |
0896b752 | 2745 | |
b5c7a12d MC |
2746 | ev->r.c_conn_ret.sid = session->sid; |
2747 | ev->r.c_conn_ret.cid = conn->cid; | |
632248aa MC |
2748 | |
2749 | ISCSI_DBG_TRANS_CONN(conn, "Completed creating transport conn\n"); | |
0896b752 | 2750 | return 0; |
1da177e4 LT |
2751 | } |
2752 | ||
0896b752 AA |
2753 | static int |
2754 | iscsi_if_destroy_conn(struct iscsi_transport *transport, struct iscsi_uevent *ev) | |
2755 | { | |
7b8631b5 | 2756 | struct iscsi_cls_conn *conn; |
0896b752 | 2757 | |
b5c7a12d | 2758 | conn = iscsi_conn_lookup(ev->u.d_conn.sid, ev->u.d_conn.cid); |
0896b752 | 2759 | if (!conn) |
7b8631b5 | 2760 | return -EINVAL; |
0896b752 | 2761 | |
632248aa | 2762 | ISCSI_DBG_TRANS_CONN(conn, "Destroying transport conn\n"); |
7b8631b5 MC |
2763 | if (transport->destroy_conn) |
2764 | transport->destroy_conn(conn); | |
632248aa | 2765 | |
7b8631b5 | 2766 | return 0; |
0896b752 AA |
2767 | } |
2768 | ||
fd7255f5 MC |
2769 | static int |
2770 | iscsi_set_param(struct iscsi_transport *transport, struct iscsi_uevent *ev) | |
2771 | { | |
2772 | char *data = (char*)ev + sizeof(*ev); | |
2773 | struct iscsi_cls_conn *conn; | |
2774 | struct iscsi_cls_session *session; | |
a54a52ca | 2775 | int err = 0, value = 0; |
fd7255f5 MC |
2776 | |
2777 | session = iscsi_session_lookup(ev->u.set_param.sid); | |
2778 | conn = iscsi_conn_lookup(ev->u.set_param.sid, ev->u.set_param.cid); | |
2779 | if (!conn || !session) | |
2780 | return -EINVAL; | |
2781 | ||
2782 | switch (ev->u.set_param.param) { | |
30a6c652 | 2783 | case ISCSI_PARAM_SESS_RECOVERY_TMO: |
a54a52ca | 2784 | sscanf(data, "%d", &value); |
9c8108a4 CL |
2785 | if (!session->recovery_tmo_sysfs_override) |
2786 | session->recovery_tmo = value; | |
30a6c652 | 2787 | break; |
fd7255f5 | 2788 | default: |
a54a52ca MC |
2789 | err = transport->set_param(conn, ev->u.set_param.param, |
2790 | data, ev->u.set_param.len); | |
fd7255f5 MC |
2791 | } |
2792 | ||
2793 | return err; | |
2794 | } | |
2795 | ||
10eb0f01 MC |
2796 | static int iscsi_if_ep_connect(struct iscsi_transport *transport, |
2797 | struct iscsi_uevent *ev, int msg_type) | |
2798 | { | |
2799 | struct iscsi_endpoint *ep; | |
2800 | struct sockaddr *dst_addr; | |
2801 | struct Scsi_Host *shost = NULL; | |
2802 | int non_blocking, err = 0; | |
2803 | ||
2804 | if (!transport->ep_connect) | |
2805 | return -EINVAL; | |
2806 | ||
2807 | if (msg_type == ISCSI_UEVENT_TRANSPORT_EP_CONNECT_THROUGH_HOST) { | |
2808 | shost = scsi_host_lookup(ev->u.ep_connect_through_host.host_no); | |
2809 | if (!shost) { | |
2810 | printk(KERN_ERR "ep connect failed. Could not find " | |
2811 | "host no %u\n", | |
2812 | ev->u.ep_connect_through_host.host_no); | |
2813 | return -ENODEV; | |
2814 | } | |
2815 | non_blocking = ev->u.ep_connect_through_host.non_blocking; | |
2816 | } else | |
2817 | non_blocking = ev->u.ep_connect.non_blocking; | |
2818 | ||
2819 | dst_addr = (struct sockaddr *)((char*)ev + sizeof(*ev)); | |
2820 | ep = transport->ep_connect(shost, dst_addr, non_blocking); | |
2821 | if (IS_ERR(ep)) { | |
2822 | err = PTR_ERR(ep); | |
2823 | goto release_host; | |
2824 | } | |
2825 | ||
2826 | ev->r.ep_connect_ret.handle = ep->id; | |
2827 | release_host: | |
2828 | if (shost) | |
2829 | scsi_host_put(shost); | |
2830 | return err; | |
2831 | } | |
2832 | ||
22a39fbb MC |
2833 | static int iscsi_if_ep_disconnect(struct iscsi_transport *transport, |
2834 | u64 ep_handle) | |
2835 | { | |
2836 | struct iscsi_cls_conn *conn; | |
2837 | struct iscsi_endpoint *ep; | |
2838 | ||
2839 | if (!transport->ep_disconnect) | |
2840 | return -EINVAL; | |
2841 | ||
2842 | ep = iscsi_lookup_endpoint(ep_handle); | |
2843 | if (!ep) | |
2844 | return -EINVAL; | |
2845 | conn = ep->conn; | |
2846 | if (conn) { | |
2847 | mutex_lock(&conn->ep_mutex); | |
2848 | conn->ep = NULL; | |
2849 | mutex_unlock(&conn->ep_mutex); | |
2850 | } | |
2851 | ||
2852 | transport->ep_disconnect(ep); | |
2853 | return 0; | |
2854 | } | |
2855 | ||
264faaaa OG |
2856 | static int |
2857 | iscsi_if_transport_ep(struct iscsi_transport *transport, | |
2858 | struct iscsi_uevent *ev, int msg_type) | |
2859 | { | |
d82ff9be | 2860 | struct iscsi_endpoint *ep; |
264faaaa OG |
2861 | int rc = 0; |
2862 | ||
2863 | switch (msg_type) { | |
10eb0f01 | 2864 | case ISCSI_UEVENT_TRANSPORT_EP_CONNECT_THROUGH_HOST: |
264faaaa | 2865 | case ISCSI_UEVENT_TRANSPORT_EP_CONNECT: |
10eb0f01 | 2866 | rc = iscsi_if_ep_connect(transport, ev, msg_type); |
264faaaa OG |
2867 | break; |
2868 | case ISCSI_UEVENT_TRANSPORT_EP_POLL: | |
2869 | if (!transport->ep_poll) | |
2870 | return -EINVAL; | |
2871 | ||
d82ff9be MC |
2872 | ep = iscsi_lookup_endpoint(ev->u.ep_poll.ep_handle); |
2873 | if (!ep) | |
2874 | return -EINVAL; | |
2875 | ||
2876 | ev->r.retcode = transport->ep_poll(ep, | |
264faaaa OG |
2877 | ev->u.ep_poll.timeout_ms); |
2878 | break; | |
2879 | case ISCSI_UEVENT_TRANSPORT_EP_DISCONNECT: | |
22a39fbb MC |
2880 | rc = iscsi_if_ep_disconnect(transport, |
2881 | ev->u.ep_disconnect.ep_handle); | |
264faaaa OG |
2882 | break; |
2883 | } | |
2884 | return rc; | |
2885 | } | |
2886 | ||
01cb225d MC |
2887 | static int |
2888 | iscsi_tgt_dscvr(struct iscsi_transport *transport, | |
2889 | struct iscsi_uevent *ev) | |
2890 | { | |
2174a04e | 2891 | struct Scsi_Host *shost; |
01cb225d | 2892 | struct sockaddr *dst_addr; |
2174a04e | 2893 | int err; |
01cb225d MC |
2894 | |
2895 | if (!transport->tgt_dscvr) | |
2896 | return -EINVAL; | |
2897 | ||
2174a04e | 2898 | shost = scsi_host_lookup(ev->u.tgt_dscvr.host_no); |
315cb0ad | 2899 | if (!shost) { |
2174a04e MC |
2900 | printk(KERN_ERR "target discovery could not find host no %u\n", |
2901 | ev->u.tgt_dscvr.host_no); | |
2902 | return -ENODEV; | |
2903 | } | |
2904 | ||
2905 | ||
01cb225d | 2906 | dst_addr = (struct sockaddr *)((char*)ev + sizeof(*ev)); |
2174a04e MC |
2907 | err = transport->tgt_dscvr(shost, ev->u.tgt_dscvr.type, |
2908 | ev->u.tgt_dscvr.enable, dst_addr); | |
2909 | scsi_host_put(shost); | |
2910 | return err; | |
01cb225d MC |
2911 | } |
2912 | ||
1d9bf13a MC |
2913 | static int |
2914 | iscsi_set_host_param(struct iscsi_transport *transport, | |
2915 | struct iscsi_uevent *ev) | |
2916 | { | |
2917 | char *data = (char*)ev + sizeof(*ev); | |
2918 | struct Scsi_Host *shost; | |
2919 | int err; | |
2920 | ||
2921 | if (!transport->set_host_param) | |
2922 | return -ENOSYS; | |
2923 | ||
2924 | shost = scsi_host_lookup(ev->u.set_host_param.host_no); | |
315cb0ad | 2925 | if (!shost) { |
1d9bf13a MC |
2926 | printk(KERN_ERR "set_host_param could not find host no %u\n", |
2927 | ev->u.set_host_param.host_no); | |
2928 | return -ENODEV; | |
2929 | } | |
2930 | ||
2931 | err = transport->set_host_param(shost, ev->u.set_host_param.param, | |
2932 | data, ev->u.set_host_param.len); | |
2933 | scsi_host_put(shost); | |
2934 | return err; | |
2935 | } | |
2936 | ||
0896b752 | 2937 | static int |
43514774 MC |
2938 | iscsi_set_path(struct iscsi_transport *transport, struct iscsi_uevent *ev) |
2939 | { | |
2940 | struct Scsi_Host *shost; | |
2941 | struct iscsi_path *params; | |
2942 | int err; | |
2943 | ||
2944 | if (!transport->set_path) | |
2945 | return -ENOSYS; | |
2946 | ||
2947 | shost = scsi_host_lookup(ev->u.set_path.host_no); | |
2948 | if (!shost) { | |
2949 | printk(KERN_ERR "set path could not find host no %u\n", | |
2950 | ev->u.set_path.host_no); | |
2951 | return -ENODEV; | |
2952 | } | |
2953 | ||
2954 | params = (struct iscsi_path *)((char *)ev + sizeof(*ev)); | |
2955 | err = transport->set_path(shost, params); | |
2956 | ||
2957 | scsi_host_put(shost); | |
2958 | return err; | |
2959 | } | |
2960 | ||
56c155b5 MC |
2961 | static int |
2962 | iscsi_set_iface_params(struct iscsi_transport *transport, | |
00c31889 | 2963 | struct iscsi_uevent *ev, uint32_t len) |
56c155b5 MC |
2964 | { |
2965 | char *data = (char *)ev + sizeof(*ev); | |
2966 | struct Scsi_Host *shost; | |
2967 | int err; | |
2968 | ||
2969 | if (!transport->set_iface_param) | |
2970 | return -ENOSYS; | |
2971 | ||
2972 | shost = scsi_host_lookup(ev->u.set_iface_params.host_no); | |
2973 | if (!shost) { | |
2974 | printk(KERN_ERR "set_iface_params could not find host no %u\n", | |
2975 | ev->u.set_iface_params.host_no); | |
2976 | return -ENODEV; | |
2977 | } | |
2978 | ||
00c31889 | 2979 | err = transport->set_iface_param(shost, data, len); |
56c155b5 MC |
2980 | scsi_host_put(shost); |
2981 | return err; | |
2982 | } | |
2983 | ||
ac20c7bf VC |
2984 | static int |
2985 | iscsi_send_ping(struct iscsi_transport *transport, struct iscsi_uevent *ev) | |
2986 | { | |
2987 | struct Scsi_Host *shost; | |
2988 | struct sockaddr *dst_addr; | |
2989 | int err; | |
2990 | ||
2991 | if (!transport->send_ping) | |
2992 | return -ENOSYS; | |
2993 | ||
2994 | shost = scsi_host_lookup(ev->u.iscsi_ping.host_no); | |
2995 | if (!shost) { | |
2996 | printk(KERN_ERR "iscsi_ping could not find host no %u\n", | |
2997 | ev->u.iscsi_ping.host_no); | |
2998 | return -ENODEV; | |
2999 | } | |
3000 | ||
3001 | dst_addr = (struct sockaddr *)((char *)ev + sizeof(*ev)); | |
3002 | err = transport->send_ping(shost, ev->u.iscsi_ping.iface_num, | |
3003 | ev->u.iscsi_ping.iface_type, | |
3004 | ev->u.iscsi_ping.payload_size, | |
3005 | ev->u.iscsi_ping.pid, | |
3006 | dst_addr); | |
3007 | scsi_host_put(shost); | |
3008 | return err; | |
3009 | } | |
3010 | ||
6260a5d2 NJ |
3011 | static int |
3012 | iscsi_get_chap(struct iscsi_transport *transport, struct nlmsghdr *nlh) | |
3013 | { | |
e07ebea0 | 3014 | struct iscsi_uevent *ev = nlmsg_data(nlh); |
6260a5d2 NJ |
3015 | struct Scsi_Host *shost = NULL; |
3016 | struct iscsi_chap_rec *chap_rec; | |
3017 | struct iscsi_internal *priv; | |
3018 | struct sk_buff *skbchap; | |
3019 | struct nlmsghdr *nlhchap; | |
3020 | struct iscsi_uevent *evchap; | |
3021 | uint32_t chap_buf_size; | |
3022 | int len, err = 0; | |
3023 | char *buf; | |
3024 | ||
3025 | if (!transport->get_chap) | |
3026 | return -EINVAL; | |
3027 | ||
3028 | priv = iscsi_if_transport_lookup(transport); | |
3029 | if (!priv) | |
3030 | return -EINVAL; | |
3031 | ||
3032 | chap_buf_size = (ev->u.get_chap.num_entries * sizeof(*chap_rec)); | |
e07ebea0 | 3033 | len = nlmsg_total_size(sizeof(*ev) + chap_buf_size); |
6260a5d2 NJ |
3034 | |
3035 | shost = scsi_host_lookup(ev->u.get_chap.host_no); | |
3036 | if (!shost) { | |
804ff603 | 3037 | printk(KERN_ERR "%s: failed. Could not find host no %u\n", |
6260a5d2 NJ |
3038 | __func__, ev->u.get_chap.host_no); |
3039 | return -ENODEV; | |
3040 | } | |
3041 | ||
3042 | do { | |
3043 | int actual_size; | |
3044 | ||
3045 | skbchap = alloc_skb(len, GFP_KERNEL); | |
3046 | if (!skbchap) { | |
3047 | printk(KERN_ERR "can not deliver chap: OOM\n"); | |
3048 | err = -ENOMEM; | |
3049 | goto exit_get_chap; | |
3050 | } | |
3051 | ||
3052 | nlhchap = __nlmsg_put(skbchap, 0, 0, 0, | |
3053 | (len - sizeof(*nlhchap)), 0); | |
e07ebea0 | 3054 | evchap = nlmsg_data(nlhchap); |
6260a5d2 NJ |
3055 | memset(evchap, 0, sizeof(*evchap)); |
3056 | evchap->transport_handle = iscsi_handle(transport); | |
3057 | evchap->type = nlh->nlmsg_type; | |
3058 | evchap->u.get_chap.host_no = ev->u.get_chap.host_no; | |
3059 | evchap->u.get_chap.chap_tbl_idx = ev->u.get_chap.chap_tbl_idx; | |
3060 | evchap->u.get_chap.num_entries = ev->u.get_chap.num_entries; | |
a799cb77 | 3061 | buf = (char *)evchap + sizeof(*evchap); |
6260a5d2 NJ |
3062 | memset(buf, 0, chap_buf_size); |
3063 | ||
3064 | err = transport->get_chap(shost, ev->u.get_chap.chap_tbl_idx, | |
3065 | &evchap->u.get_chap.num_entries, buf); | |
3066 | ||
e07ebea0 | 3067 | actual_size = nlmsg_total_size(sizeof(*ev) + chap_buf_size); |
6260a5d2 NJ |
3068 | skb_trim(skbchap, NLMSG_ALIGN(actual_size)); |
3069 | nlhchap->nlmsg_len = actual_size; | |
3070 | ||
3071 | err = iscsi_multicast_skb(skbchap, ISCSI_NL_GRP_ISCSID, | |
3072 | GFP_KERNEL); | |
3073 | } while (err < 0 && err != -ECONNREFUSED); | |
3074 | ||
3075 | exit_get_chap: | |
3076 | scsi_host_put(shost); | |
3077 | return err; | |
3078 | } | |
3079 | ||
3af142fe AC |
3080 | static int iscsi_set_chap(struct iscsi_transport *transport, |
3081 | struct iscsi_uevent *ev, uint32_t len) | |
3082 | { | |
3083 | char *data = (char *)ev + sizeof(*ev); | |
3084 | struct Scsi_Host *shost; | |
3085 | int err = 0; | |
3086 | ||
3087 | if (!transport->set_chap) | |
3088 | return -ENOSYS; | |
3089 | ||
3090 | shost = scsi_host_lookup(ev->u.set_path.host_no); | |
3091 | if (!shost) { | |
3092 | pr_err("%s could not find host no %u\n", | |
3093 | __func__, ev->u.set_path.host_no); | |
3094 | return -ENODEV; | |
3095 | } | |
3096 | ||
3097 | err = transport->set_chap(shost, data, len); | |
3098 | scsi_host_put(shost); | |
3099 | return err; | |
3100 | } | |
3101 | ||
6260a5d2 NJ |
3102 | static int iscsi_delete_chap(struct iscsi_transport *transport, |
3103 | struct iscsi_uevent *ev) | |
3104 | { | |
3105 | struct Scsi_Host *shost; | |
3106 | int err = 0; | |
3107 | ||
3108 | if (!transport->delete_chap) | |
3109 | return -ENOSYS; | |
3110 | ||
3111 | shost = scsi_host_lookup(ev->u.delete_chap.host_no); | |
3112 | if (!shost) { | |
3113 | printk(KERN_ERR "%s could not find host no %u\n", | |
3114 | __func__, ev->u.delete_chap.host_no); | |
3115 | return -ENODEV; | |
3116 | } | |
3117 | ||
3118 | err = transport->delete_chap(shost, ev->u.delete_chap.chap_tbl_idx); | |
3119 | scsi_host_put(shost); | |
3120 | return err; | |
3121 | } | |
3122 | ||
c6a4bb2e AC |
3123 | static const struct { |
3124 | enum iscsi_discovery_parent_type value; | |
3125 | char *name; | |
3126 | } iscsi_discovery_parent_names[] = { | |
3127 | {ISCSI_DISC_PARENT_UNKNOWN, "Unknown" }, | |
3128 | {ISCSI_DISC_PARENT_SENDTGT, "Sendtarget" }, | |
3129 | {ISCSI_DISC_PARENT_ISNS, "isns" }, | |
3130 | }; | |
3131 | ||
3132 | char *iscsi_get_discovery_parent_name(int parent_type) | |
3133 | { | |
3134 | int i; | |
3135 | char *state = "Unknown!"; | |
3136 | ||
3137 | for (i = 0; i < ARRAY_SIZE(iscsi_discovery_parent_names); i++) { | |
3138 | if (iscsi_discovery_parent_names[i].value & parent_type) { | |
3139 | state = iscsi_discovery_parent_names[i].name; | |
3140 | break; | |
3141 | } | |
3142 | } | |
3143 | return state; | |
3144 | } | |
3145 | EXPORT_SYMBOL_GPL(iscsi_get_discovery_parent_name); | |
3146 | ||
3147 | static int iscsi_set_flashnode_param(struct iscsi_transport *transport, | |
3148 | struct iscsi_uevent *ev, uint32_t len) | |
3149 | { | |
3150 | char *data = (char *)ev + sizeof(*ev); | |
3151 | struct Scsi_Host *shost; | |
3152 | struct iscsi_bus_flash_session *fnode_sess; | |
3153 | struct iscsi_bus_flash_conn *fnode_conn; | |
3154 | struct device *dev; | |
8526cb11 | 3155 | uint32_t idx; |
c6a4bb2e AC |
3156 | int err = 0; |
3157 | ||
3158 | if (!transport->set_flashnode_param) { | |
3159 | err = -ENOSYS; | |
3160 | goto exit_set_fnode; | |
3161 | } | |
3162 | ||
3163 | shost = scsi_host_lookup(ev->u.set_flashnode.host_no); | |
3164 | if (!shost) { | |
3165 | pr_err("%s could not find host no %u\n", | |
3166 | __func__, ev->u.set_flashnode.host_no); | |
3167 | err = -ENODEV; | |
3168 | goto put_host; | |
3169 | } | |
3170 | ||
8526cb11 MC |
3171 | idx = ev->u.set_flashnode.flashnode_idx; |
3172 | fnode_sess = iscsi_get_flashnode_by_index(shost, idx); | |
c6a4bb2e AC |
3173 | if (!fnode_sess) { |
3174 | pr_err("%s could not find flashnode %u for host no %u\n", | |
8526cb11 | 3175 | __func__, idx, ev->u.set_flashnode.host_no); |
c6a4bb2e AC |
3176 | err = -ENODEV; |
3177 | goto put_host; | |
3178 | } | |
3179 | ||
8526cb11 | 3180 | dev = iscsi_find_flashnode_conn(fnode_sess); |
c6a4bb2e AC |
3181 | if (!dev) { |
3182 | err = -ENODEV; | |
8526cb11 | 3183 | goto put_sess; |
c6a4bb2e AC |
3184 | } |
3185 | ||
3186 | fnode_conn = iscsi_dev_to_flash_conn(dev); | |
3187 | err = transport->set_flashnode_param(fnode_sess, fnode_conn, data, len); | |
8526cb11 MC |
3188 | put_device(dev); |
3189 | ||
3190 | put_sess: | |
3191 | put_device(&fnode_sess->dev); | |
c6a4bb2e AC |
3192 | |
3193 | put_host: | |
3194 | scsi_host_put(shost); | |
3195 | ||
3196 | exit_set_fnode: | |
3197 | return err; | |
3198 | } | |
3199 | ||
3200 | static int iscsi_new_flashnode(struct iscsi_transport *transport, | |
3201 | struct iscsi_uevent *ev, uint32_t len) | |
3202 | { | |
3203 | char *data = (char *)ev + sizeof(*ev); | |
3204 | struct Scsi_Host *shost; | |
3205 | int index; | |
3206 | int err = 0; | |
3207 | ||
3208 | if (!transport->new_flashnode) { | |
3209 | err = -ENOSYS; | |
3210 | goto exit_new_fnode; | |
3211 | } | |
3212 | ||
3213 | shost = scsi_host_lookup(ev->u.new_flashnode.host_no); | |
3214 | if (!shost) { | |
3215 | pr_err("%s could not find host no %u\n", | |
3216 | __func__, ev->u.new_flashnode.host_no); | |
3217 | err = -ENODEV; | |
3218 | goto put_host; | |
3219 | } | |
3220 | ||
3221 | index = transport->new_flashnode(shost, data, len); | |
3222 | ||
3223 | if (index >= 0) | |
3224 | ev->r.new_flashnode_ret.flashnode_idx = index; | |
3225 | else | |
3226 | err = -EIO; | |
3227 | ||
3228 | put_host: | |
3229 | scsi_host_put(shost); | |
3230 | ||
3231 | exit_new_fnode: | |
3232 | return err; | |
3233 | } | |
3234 | ||
3235 | static int iscsi_del_flashnode(struct iscsi_transport *transport, | |
3236 | struct iscsi_uevent *ev) | |
3237 | { | |
3238 | struct Scsi_Host *shost; | |
3239 | struct iscsi_bus_flash_session *fnode_sess; | |
8526cb11 | 3240 | uint32_t idx; |
c6a4bb2e AC |
3241 | int err = 0; |
3242 | ||
3243 | if (!transport->del_flashnode) { | |
3244 | err = -ENOSYS; | |
3245 | goto exit_del_fnode; | |
3246 | } | |
3247 | ||
3248 | shost = scsi_host_lookup(ev->u.del_flashnode.host_no); | |
3249 | if (!shost) { | |
3250 | pr_err("%s could not find host no %u\n", | |
3251 | __func__, ev->u.del_flashnode.host_no); | |
3252 | err = -ENODEV; | |
3253 | goto put_host; | |
3254 | } | |
3255 | ||
8526cb11 MC |
3256 | idx = ev->u.del_flashnode.flashnode_idx; |
3257 | fnode_sess = iscsi_get_flashnode_by_index(shost, idx); | |
c6a4bb2e AC |
3258 | if (!fnode_sess) { |
3259 | pr_err("%s could not find flashnode %u for host no %u\n", | |
8526cb11 | 3260 | __func__, idx, ev->u.del_flashnode.host_no); |
c6a4bb2e AC |
3261 | err = -ENODEV; |
3262 | goto put_host; | |
3263 | } | |
3264 | ||
3265 | err = transport->del_flashnode(fnode_sess); | |
8526cb11 | 3266 | put_device(&fnode_sess->dev); |
c6a4bb2e AC |
3267 | |
3268 | put_host: | |
3269 | scsi_host_put(shost); | |
3270 | ||
3271 | exit_del_fnode: | |
3272 | return err; | |
3273 | } | |
3274 | ||
3275 | static int iscsi_login_flashnode(struct iscsi_transport *transport, | |
3276 | struct iscsi_uevent *ev) | |
3277 | { | |
3278 | struct Scsi_Host *shost; | |
3279 | struct iscsi_bus_flash_session *fnode_sess; | |
3280 | struct iscsi_bus_flash_conn *fnode_conn; | |
3281 | struct device *dev; | |
8526cb11 | 3282 | uint32_t idx; |
c6a4bb2e AC |
3283 | int err = 0; |
3284 | ||
3285 | if (!transport->login_flashnode) { | |
3286 | err = -ENOSYS; | |
3287 | goto exit_login_fnode; | |
3288 | } | |
3289 | ||
3290 | shost = scsi_host_lookup(ev->u.login_flashnode.host_no); | |
3291 | if (!shost) { | |
3292 | pr_err("%s could not find host no %u\n", | |
3293 | __func__, ev->u.login_flashnode.host_no); | |
3294 | err = -ENODEV; | |
3295 | goto put_host; | |
3296 | } | |
3297 | ||
8526cb11 MC |
3298 | idx = ev->u.login_flashnode.flashnode_idx; |
3299 | fnode_sess = iscsi_get_flashnode_by_index(shost, idx); | |
c6a4bb2e AC |
3300 | if (!fnode_sess) { |
3301 | pr_err("%s could not find flashnode %u for host no %u\n", | |
8526cb11 | 3302 | __func__, idx, ev->u.login_flashnode.host_no); |
c6a4bb2e AC |
3303 | err = -ENODEV; |
3304 | goto put_host; | |
3305 | } | |
3306 | ||
8526cb11 | 3307 | dev = iscsi_find_flashnode_conn(fnode_sess); |
c6a4bb2e AC |
3308 | if (!dev) { |
3309 | err = -ENODEV; | |
8526cb11 | 3310 | goto put_sess; |
c6a4bb2e AC |
3311 | } |
3312 | ||
3313 | fnode_conn = iscsi_dev_to_flash_conn(dev); | |
3314 | err = transport->login_flashnode(fnode_sess, fnode_conn); | |
8526cb11 MC |
3315 | put_device(dev); |
3316 | ||
3317 | put_sess: | |
3318 | put_device(&fnode_sess->dev); | |
c6a4bb2e AC |
3319 | |
3320 | put_host: | |
3321 | scsi_host_put(shost); | |
3322 | ||
3323 | exit_login_fnode: | |
3324 | return err; | |
3325 | } | |
3326 | ||
3327 | static int iscsi_logout_flashnode(struct iscsi_transport *transport, | |
3328 | struct iscsi_uevent *ev) | |
3329 | { | |
3330 | struct Scsi_Host *shost; | |
3331 | struct iscsi_bus_flash_session *fnode_sess; | |
3332 | struct iscsi_bus_flash_conn *fnode_conn; | |
3333 | struct device *dev; | |
8526cb11 | 3334 | uint32_t idx; |
c6a4bb2e AC |
3335 | int err = 0; |
3336 | ||
3337 | if (!transport->logout_flashnode) { | |
3338 | err = -ENOSYS; | |
3339 | goto exit_logout_fnode; | |
3340 | } | |
3341 | ||
3342 | shost = scsi_host_lookup(ev->u.logout_flashnode.host_no); | |
3343 | if (!shost) { | |
3344 | pr_err("%s could not find host no %u\n", | |
3345 | __func__, ev->u.logout_flashnode.host_no); | |
3346 | err = -ENODEV; | |
3347 | goto put_host; | |
3348 | } | |
3349 | ||
8526cb11 MC |
3350 | idx = ev->u.logout_flashnode.flashnode_idx; |
3351 | fnode_sess = iscsi_get_flashnode_by_index(shost, idx); | |
c6a4bb2e AC |
3352 | if (!fnode_sess) { |
3353 | pr_err("%s could not find flashnode %u for host no %u\n", | |
8526cb11 | 3354 | __func__, idx, ev->u.logout_flashnode.host_no); |
c6a4bb2e AC |
3355 | err = -ENODEV; |
3356 | goto put_host; | |
3357 | } | |
3358 | ||
8526cb11 | 3359 | dev = iscsi_find_flashnode_conn(fnode_sess); |
c6a4bb2e AC |
3360 | if (!dev) { |
3361 | err = -ENODEV; | |
8526cb11 | 3362 | goto put_sess; |
c6a4bb2e AC |
3363 | } |
3364 | ||
3365 | fnode_conn = iscsi_dev_to_flash_conn(dev); | |
3366 | ||
3367 | err = transport->logout_flashnode(fnode_sess, fnode_conn); | |
8526cb11 MC |
3368 | put_device(dev); |
3369 | ||
3370 | put_sess: | |
3371 | put_device(&fnode_sess->dev); | |
c6a4bb2e AC |
3372 | |
3373 | put_host: | |
3374 | scsi_host_put(shost); | |
3375 | ||
3376 | exit_logout_fnode: | |
3377 | return err; | |
3378 | } | |
3379 | ||
3380 | static int iscsi_logout_flashnode_sid(struct iscsi_transport *transport, | |
3381 | struct iscsi_uevent *ev) | |
3382 | { | |
3383 | struct Scsi_Host *shost; | |
3384 | struct iscsi_cls_session *session; | |
3385 | int err = 0; | |
3386 | ||
3387 | if (!transport->logout_flashnode_sid) { | |
3388 | err = -ENOSYS; | |
3389 | goto exit_logout_sid; | |
3390 | } | |
3391 | ||
3392 | shost = scsi_host_lookup(ev->u.logout_flashnode_sid.host_no); | |
3393 | if (!shost) { | |
3394 | pr_err("%s could not find host no %u\n", | |
3395 | __func__, ev->u.logout_flashnode.host_no); | |
3396 | err = -ENODEV; | |
3397 | goto put_host; | |
3398 | } | |
3399 | ||
3400 | session = iscsi_session_lookup(ev->u.logout_flashnode_sid.sid); | |
3401 | if (!session) { | |
3402 | pr_err("%s could not find session id %u\n", | |
3403 | __func__, ev->u.logout_flashnode_sid.sid); | |
3404 | err = -EINVAL; | |
3405 | goto put_host; | |
3406 | } | |
3407 | ||
3408 | err = transport->logout_flashnode_sid(session); | |
3409 | ||
3410 | put_host: | |
3411 | scsi_host_put(shost); | |
3412 | ||
3413 | exit_logout_sid: | |
3414 | return err; | |
3415 | } | |
3416 | ||
6fa7c554 LC |
3417 | static int |
3418 | iscsi_get_host_stats(struct iscsi_transport *transport, struct nlmsghdr *nlh) | |
3419 | { | |
3420 | struct iscsi_uevent *ev = nlmsg_data(nlh); | |
3421 | struct Scsi_Host *shost = NULL; | |
3422 | struct iscsi_internal *priv; | |
3423 | struct sk_buff *skbhost_stats; | |
3424 | struct nlmsghdr *nlhhost_stats; | |
3425 | struct iscsi_uevent *evhost_stats; | |
3426 | int host_stats_size = 0; | |
3427 | int len, err = 0; | |
3428 | char *buf; | |
3429 | ||
3430 | if (!transport->get_host_stats) | |
719e5874 | 3431 | return -ENOSYS; |
6fa7c554 LC |
3432 | |
3433 | priv = iscsi_if_transport_lookup(transport); | |
3434 | if (!priv) | |
3435 | return -EINVAL; | |
3436 | ||
3437 | host_stats_size = sizeof(struct iscsi_offload_host_stats); | |
3438 | len = nlmsg_total_size(sizeof(*ev) + host_stats_size); | |
3439 | ||
3440 | shost = scsi_host_lookup(ev->u.get_host_stats.host_no); | |
3441 | if (!shost) { | |
013ee633 | 3442 | pr_err("%s: failed. Could not find host no %u\n", |
6fa7c554 LC |
3443 | __func__, ev->u.get_host_stats.host_no); |
3444 | return -ENODEV; | |
3445 | } | |
3446 | ||
3447 | do { | |
3448 | int actual_size; | |
3449 | ||
3450 | skbhost_stats = alloc_skb(len, GFP_KERNEL); | |
3451 | if (!skbhost_stats) { | |
3452 | pr_err("cannot deliver host stats: OOM\n"); | |
3453 | err = -ENOMEM; | |
3454 | goto exit_host_stats; | |
3455 | } | |
3456 | ||
3457 | nlhhost_stats = __nlmsg_put(skbhost_stats, 0, 0, 0, | |
3458 | (len - sizeof(*nlhhost_stats)), 0); | |
3459 | evhost_stats = nlmsg_data(nlhhost_stats); | |
3460 | memset(evhost_stats, 0, sizeof(*evhost_stats)); | |
3461 | evhost_stats->transport_handle = iscsi_handle(transport); | |
3462 | evhost_stats->type = nlh->nlmsg_type; | |
3463 | evhost_stats->u.get_host_stats.host_no = | |
3464 | ev->u.get_host_stats.host_no; | |
a799cb77 | 3465 | buf = (char *)evhost_stats + sizeof(*evhost_stats); |
6fa7c554 LC |
3466 | memset(buf, 0, host_stats_size); |
3467 | ||
3468 | err = transport->get_host_stats(shost, buf, host_stats_size); | |
2f7608fc | 3469 | if (err) { |
bfb50879 | 3470 | kfree_skb(skbhost_stats); |
2f7608fc MC |
3471 | goto exit_host_stats; |
3472 | } | |
6fa7c554 LC |
3473 | |
3474 | actual_size = nlmsg_total_size(sizeof(*ev) + host_stats_size); | |
3475 | skb_trim(skbhost_stats, NLMSG_ALIGN(actual_size)); | |
3476 | nlhhost_stats->nlmsg_len = actual_size; | |
3477 | ||
3478 | err = iscsi_multicast_skb(skbhost_stats, ISCSI_NL_GRP_ISCSID, | |
3479 | GFP_KERNEL); | |
3480 | } while (err < 0 && err != -ECONNREFUSED); | |
3481 | ||
3482 | exit_host_stats: | |
3483 | scsi_host_put(shost); | |
3484 | return err; | |
3485 | } | |
3486 | ||
3487 | ||
43514774 MC |
3488 | static int |
3489 | iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, uint32_t *group) | |
0896b752 AA |
3490 | { |
3491 | int err = 0; | |
af170928 | 3492 | u32 portid; |
e07ebea0 | 3493 | struct iscsi_uevent *ev = nlmsg_data(nlh); |
0896b752 AA |
3494 | struct iscsi_transport *transport = NULL; |
3495 | struct iscsi_internal *priv; | |
7b7232f3 MC |
3496 | struct iscsi_cls_session *session; |
3497 | struct iscsi_cls_conn *conn; | |
d82ff9be | 3498 | struct iscsi_endpoint *ep = NULL; |
0896b752 | 3499 | |
43514774 MC |
3500 | if (nlh->nlmsg_type == ISCSI_UEVENT_PATH_UPDATE) |
3501 | *group = ISCSI_NL_GRP_UIP; | |
3502 | else | |
3503 | *group = ISCSI_NL_GRP_ISCSID; | |
3504 | ||
0896b752 AA |
3505 | priv = iscsi_if_transport_lookup(iscsi_ptr(ev->transport_handle)); |
3506 | if (!priv) | |
3507 | return -EINVAL; | |
3508 | transport = priv->iscsi_transport; | |
3509 | ||
7b7232f3 MC |
3510 | if (!try_module_get(transport->owner)) |
3511 | return -EINVAL; | |
3512 | ||
af170928 CL |
3513 | portid = NETLINK_CB(skb).portid; |
3514 | ||
0896b752 AA |
3515 | switch (nlh->nlmsg_type) { |
3516 | case ISCSI_UEVENT_CREATE_SESSION: | |
d82ff9be | 3517 | err = iscsi_if_create_session(priv, ep, ev, |
af170928 | 3518 | portid, |
40753caa MC |
3519 | ev->u.c_session.initial_cmdsn, |
3520 | ev->u.c_session.cmds_max, | |
3521 | ev->u.c_session.queue_depth); | |
3522 | break; | |
3523 | case ISCSI_UEVENT_CREATE_BOUND_SESSION: | |
d82ff9be | 3524 | ep = iscsi_lookup_endpoint(ev->u.c_bound_session.ep_handle); |
c95fddc7 MC |
3525 | if (!ep) { |
3526 | err = -EINVAL; | |
3527 | break; | |
3528 | } | |
d82ff9be MC |
3529 | |
3530 | err = iscsi_if_create_session(priv, ep, ev, | |
af170928 | 3531 | portid, |
40753caa MC |
3532 | ev->u.c_bound_session.initial_cmdsn, |
3533 | ev->u.c_bound_session.cmds_max, | |
3534 | ev->u.c_bound_session.queue_depth); | |
0896b752 AA |
3535 | break; |
3536 | case ISCSI_UEVENT_DESTROY_SESSION: | |
b5c7a12d | 3537 | session = iscsi_session_lookup(ev->u.d_session.sid); |
26974789 | 3538 | if (session) |
7b7232f3 | 3539 | transport->destroy_session(session); |
26974789 MC |
3540 | else |
3541 | err = -EINVAL; | |
3542 | break; | |
3543 | case ISCSI_UEVENT_UNBIND_SESSION: | |
3544 | session = iscsi_session_lookup(ev->u.d_session.sid); | |
3545 | if (session) | |
06d25af4 MC |
3546 | scsi_queue_work(iscsi_session_to_shost(session), |
3547 | &session->unbind_work); | |
26974789 | 3548 | else |
7b7232f3 | 3549 | err = -EINVAL; |
0896b752 AA |
3550 | break; |
3551 | case ISCSI_UEVENT_CREATE_CONN: | |
3552 | err = iscsi_if_create_conn(transport, ev); | |
3553 | break; | |
3554 | case ISCSI_UEVENT_DESTROY_CONN: | |
3555 | err = iscsi_if_destroy_conn(transport, ev); | |
3556 | break; | |
3557 | case ISCSI_UEVENT_BIND_CONN: | |
b5c7a12d MC |
3558 | session = iscsi_session_lookup(ev->u.b_conn.sid); |
3559 | conn = iscsi_conn_lookup(ev->u.b_conn.sid, ev->u.b_conn.cid); | |
7b7232f3 | 3560 | |
22a39fbb MC |
3561 | if (conn && conn->ep) |
3562 | iscsi_if_ep_disconnect(transport, conn->ep->id); | |
3563 | ||
3564 | if (!session || !conn) { | |
7b7232f3 | 3565 | err = -EINVAL; |
22a39fbb MC |
3566 | break; |
3567 | } | |
3568 | ||
3569 | ev->r.retcode = transport->bind_conn(session, conn, | |
3570 | ev->u.b_conn.transport_eph, | |
3571 | ev->u.b_conn.is_leading); | |
3572 | if (ev->r.retcode || !transport->ep_connect) | |
3573 | break; | |
3574 | ||
3575 | ep = iscsi_lookup_endpoint(ev->u.b_conn.transport_eph); | |
3576 | if (ep) { | |
3577 | ep->conn = conn; | |
3578 | ||
3579 | mutex_lock(&conn->ep_mutex); | |
3580 | conn->ep = ep; | |
3581 | mutex_unlock(&conn->ep_mutex); | |
3582 | } else | |
3583 | iscsi_cls_conn_printk(KERN_ERR, conn, | |
3584 | "Could not set ep conn " | |
3585 | "binding\n"); | |
0896b752 AA |
3586 | break; |
3587 | case ISCSI_UEVENT_SET_PARAM: | |
fd7255f5 | 3588 | err = iscsi_set_param(transport, ev); |
0896b752 AA |
3589 | break; |
3590 | case ISCSI_UEVENT_START_CONN: | |
b5c7a12d | 3591 | conn = iscsi_conn_lookup(ev->u.start_conn.sid, ev->u.start_conn.cid); |
7b7232f3 MC |
3592 | if (conn) |
3593 | ev->r.retcode = transport->start_conn(conn); | |
3594 | else | |
3595 | err = -EINVAL; | |
0896b752 AA |
3596 | break; |
3597 | case ISCSI_UEVENT_STOP_CONN: | |
b5c7a12d | 3598 | conn = iscsi_conn_lookup(ev->u.stop_conn.sid, ev->u.stop_conn.cid); |
7b7232f3 MC |
3599 | if (conn) |
3600 | transport->stop_conn(conn, ev->u.stop_conn.flag); | |
3601 | else | |
3602 | err = -EINVAL; | |
0896b752 AA |
3603 | break; |
3604 | case ISCSI_UEVENT_SEND_PDU: | |
b5c7a12d | 3605 | conn = iscsi_conn_lookup(ev->u.send_pdu.sid, ev->u.send_pdu.cid); |
7b7232f3 MC |
3606 | if (conn) |
3607 | ev->r.retcode = transport->send_pdu(conn, | |
3608 | (struct iscsi_hdr*)((char*)ev + sizeof(*ev)), | |
3609 | (char*)ev + sizeof(*ev) + ev->u.send_pdu.hdr_size, | |
3610 | ev->u.send_pdu.data_size); | |
3611 | else | |
3612 | err = -EINVAL; | |
0896b752 AA |
3613 | break; |
3614 | case ISCSI_UEVENT_GET_STATS: | |
5b940adf | 3615 | err = iscsi_if_get_stats(transport, nlh); |
0896b752 | 3616 | break; |
264faaaa OG |
3617 | case ISCSI_UEVENT_TRANSPORT_EP_CONNECT: |
3618 | case ISCSI_UEVENT_TRANSPORT_EP_POLL: | |
3619 | case ISCSI_UEVENT_TRANSPORT_EP_DISCONNECT: | |
10eb0f01 | 3620 | case ISCSI_UEVENT_TRANSPORT_EP_CONNECT_THROUGH_HOST: |
264faaaa OG |
3621 | err = iscsi_if_transport_ep(transport, ev, nlh->nlmsg_type); |
3622 | break; | |
01cb225d MC |
3623 | case ISCSI_UEVENT_TGT_DSCVR: |
3624 | err = iscsi_tgt_dscvr(transport, ev); | |
3625 | break; | |
1d9bf13a MC |
3626 | case ISCSI_UEVENT_SET_HOST_PARAM: |
3627 | err = iscsi_set_host_param(transport, ev); | |
3628 | break; | |
43514774 MC |
3629 | case ISCSI_UEVENT_PATH_UPDATE: |
3630 | err = iscsi_set_path(transport, ev); | |
3631 | break; | |
56c155b5 | 3632 | case ISCSI_UEVENT_SET_IFACE_PARAMS: |
00c31889 MC |
3633 | err = iscsi_set_iface_params(transport, ev, |
3634 | nlmsg_attrlen(nlh, sizeof(*ev))); | |
56c155b5 | 3635 | break; |
ac20c7bf VC |
3636 | case ISCSI_UEVENT_PING: |
3637 | err = iscsi_send_ping(transport, ev); | |
3638 | break; | |
6260a5d2 NJ |
3639 | case ISCSI_UEVENT_GET_CHAP: |
3640 | err = iscsi_get_chap(transport, nlh); | |
3641 | break; | |
3642 | case ISCSI_UEVENT_DELETE_CHAP: | |
3643 | err = iscsi_delete_chap(transport, ev); | |
3644 | break; | |
c6a4bb2e AC |
3645 | case ISCSI_UEVENT_SET_FLASHNODE_PARAMS: |
3646 | err = iscsi_set_flashnode_param(transport, ev, | |
3647 | nlmsg_attrlen(nlh, | |
3648 | sizeof(*ev))); | |
3649 | break; | |
3650 | case ISCSI_UEVENT_NEW_FLASHNODE: | |
3651 | err = iscsi_new_flashnode(transport, ev, | |
3652 | nlmsg_attrlen(nlh, sizeof(*ev))); | |
3653 | break; | |
3654 | case ISCSI_UEVENT_DEL_FLASHNODE: | |
3655 | err = iscsi_del_flashnode(transport, ev); | |
3656 | break; | |
3657 | case ISCSI_UEVENT_LOGIN_FLASHNODE: | |
3658 | err = iscsi_login_flashnode(transport, ev); | |
3659 | break; | |
3660 | case ISCSI_UEVENT_LOGOUT_FLASHNODE: | |
3661 | err = iscsi_logout_flashnode(transport, ev); | |
3662 | break; | |
3663 | case ISCSI_UEVENT_LOGOUT_FLASHNODE_SID: | |
3664 | err = iscsi_logout_flashnode_sid(transport, ev); | |
3665 | break; | |
3af142fe AC |
3666 | case ISCSI_UEVENT_SET_CHAP: |
3667 | err = iscsi_set_chap(transport, ev, | |
3668 | nlmsg_attrlen(nlh, sizeof(*ev))); | |
3669 | break; | |
6fa7c554 LC |
3670 | case ISCSI_UEVENT_GET_HOST_STATS: |
3671 | err = iscsi_get_host_stats(transport, nlh); | |
3672 | break; | |
0896b752 | 3673 | default: |
1d9bf13a | 3674 | err = -ENOSYS; |
0896b752 AA |
3675 | break; |
3676 | } | |
3677 | ||
7b7232f3 | 3678 | module_put(transport->owner); |
0896b752 AA |
3679 | return err; |
3680 | } | |
3681 | ||
b5c7a12d | 3682 | /* |
cd40b7d3 DL |
3683 | * Get message from skb. Each message is processed by iscsi_if_recv_msg. |
3684 | * Malformed skbs with wrong lengths or invalid creds are not processed. | |
b5c7a12d | 3685 | */ |
0896b752 | 3686 | static void |
cd40b7d3 | 3687 | iscsi_if_rx(struct sk_buff *skb) |
0896b752 | 3688 | { |
af170928 CL |
3689 | u32 portid = NETLINK_CB(skb).portid; |
3690 | ||
0b950672 | 3691 | mutex_lock(&rx_queue_mutex); |
e07ebea0 | 3692 | while (skb->len >= NLMSG_HDRLEN) { |
cd40b7d3 DL |
3693 | int err; |
3694 | uint32_t rlen; | |
3695 | struct nlmsghdr *nlh; | |
3696 | struct iscsi_uevent *ev; | |
43514774 | 3697 | uint32_t group; |
cd40b7d3 DL |
3698 | |
3699 | nlh = nlmsg_hdr(skb); | |
c88f0e6b | 3700 | if (nlh->nlmsg_len < sizeof(*nlh) + sizeof(*ev) || |
cd40b7d3 DL |
3701 | skb->len < nlh->nlmsg_len) { |
3702 | break; | |
ee7f8e40 | 3703 | } |
ee7f8e40 | 3704 | |
e07ebea0 | 3705 | ev = nlmsg_data(nlh); |
cd40b7d3 DL |
3706 | rlen = NLMSG_ALIGN(nlh->nlmsg_len); |
3707 | if (rlen > skb->len) | |
3708 | rlen = skb->len; | |
0896b752 | 3709 | |
43514774 | 3710 | err = iscsi_if_recv_msg(skb, nlh, &group); |
cd40b7d3 DL |
3711 | if (err) { |
3712 | ev->type = ISCSI_KEVENT_IF_ERROR; | |
3713 | ev->iferror = err; | |
0896b752 | 3714 | } |
cd40b7d3 DL |
3715 | do { |
3716 | /* | |
3717 | * special case for GET_STATS: | |
3718 | * on success - sending reply and stats from | |
3719 | * inside of if_recv_msg(), | |
3720 | * on error - fall through. | |
3721 | */ | |
3722 | if (ev->type == ISCSI_UEVENT_GET_STATS && !err) | |
3723 | break; | |
6260a5d2 NJ |
3724 | if (ev->type == ISCSI_UEVENT_GET_CHAP && !err) |
3725 | break; | |
af170928 CL |
3726 | err = iscsi_if_send_reply(portid, nlh->nlmsg_type, |
3727 | ev, sizeof(*ev)); | |
46a7c17d | 3728 | } while (err < 0 && err != -ECONNREFUSED && err != -ESRCH); |
cd40b7d3 | 3729 | skb_pull(skb, rlen); |
0896b752 | 3730 | } |
0b950672 | 3731 | mutex_unlock(&rx_queue_mutex); |
0896b752 | 3732 | } |
1da177e4 | 3733 | |
fd7255f5 | 3734 | #define ISCSI_CLASS_ATTR(_prefix,_name,_mode,_show,_store) \ |
ee959b00 | 3735 | struct device_attribute dev_attr_##_prefix##_##_name = \ |
fd7255f5 MC |
3736 | __ATTR(_name,_mode,_show,_store) |
3737 | ||
1da177e4 | 3738 | /* |
0896b752 | 3739 | * iSCSI connection attrs |
1da177e4 | 3740 | */ |
a54a52ca | 3741 | #define iscsi_conn_attr_show(param) \ |
0896b752 | 3742 | static ssize_t \ |
ee959b00 TJ |
3743 | show_conn_param_##param(struct device *dev, \ |
3744 | struct device_attribute *attr, char *buf) \ | |
0896b752 | 3745 | { \ |
ee959b00 | 3746 | struct iscsi_cls_conn *conn = iscsi_dev_to_conn(dev->parent); \ |
7b8631b5 | 3747 | struct iscsi_transport *t = conn->transport; \ |
a54a52ca | 3748 | return t->get_conn_param(conn, param, buf); \ |
0896b752 AA |
3749 | } |
3750 | ||
a54a52ca MC |
3751 | #define iscsi_conn_attr(field, param) \ |
3752 | iscsi_conn_attr_show(param) \ | |
3753 | static ISCSI_CLASS_ATTR(conn, field, S_IRUGO, show_conn_param_##param, \ | |
fd7255f5 | 3754 | NULL); |
0896b752 | 3755 | |
a54a52ca MC |
3756 | iscsi_conn_attr(max_recv_dlength, ISCSI_PARAM_MAX_RECV_DLENGTH); |
3757 | iscsi_conn_attr(max_xmit_dlength, ISCSI_PARAM_MAX_XMIT_DLENGTH); | |
3758 | iscsi_conn_attr(header_digest, ISCSI_PARAM_HDRDGST_EN); | |
3759 | iscsi_conn_attr(data_digest, ISCSI_PARAM_DATADGST_EN); | |
3760 | iscsi_conn_attr(ifmarker, ISCSI_PARAM_IFMARKER_EN); | |
3761 | iscsi_conn_attr(ofmarker, ISCSI_PARAM_OFMARKER_EN); | |
3762 | iscsi_conn_attr(persistent_port, ISCSI_PARAM_PERSISTENT_PORT); | |
a54a52ca MC |
3763 | iscsi_conn_attr(exp_statsn, ISCSI_PARAM_EXP_STATSN); |
3764 | iscsi_conn_attr(persistent_address, ISCSI_PARAM_PERSISTENT_ADDRESS); | |
f6d5180c MC |
3765 | iscsi_conn_attr(ping_tmo, ISCSI_PARAM_PING_TMO); |
3766 | iscsi_conn_attr(recv_tmo, ISCSI_PARAM_RECV_TMO); | |
ae542edb AC |
3767 | iscsi_conn_attr(local_port, ISCSI_PARAM_LOCAL_PORT); |
3768 | iscsi_conn_attr(statsn, ISCSI_PARAM_STATSN); | |
3769 | iscsi_conn_attr(keepalive_tmo, ISCSI_PARAM_KEEPALIVE_TMO); | |
3770 | iscsi_conn_attr(max_segment_size, ISCSI_PARAM_MAX_SEGMENT_SIZE); | |
3771 | iscsi_conn_attr(tcp_timestamp_stat, ISCSI_PARAM_TCP_TIMESTAMP_STAT); | |
3772 | iscsi_conn_attr(tcp_wsf_disable, ISCSI_PARAM_TCP_WSF_DISABLE); | |
3773 | iscsi_conn_attr(tcp_nagle_disable, ISCSI_PARAM_TCP_NAGLE_DISABLE); | |
3774 | iscsi_conn_attr(tcp_timer_scale, ISCSI_PARAM_TCP_TIMER_SCALE); | |
3775 | iscsi_conn_attr(tcp_timestamp_enable, ISCSI_PARAM_TCP_TIMESTAMP_EN); | |
3776 | iscsi_conn_attr(fragment_disable, ISCSI_PARAM_IP_FRAGMENT_DISABLE); | |
3777 | iscsi_conn_attr(ipv4_tos, ISCSI_PARAM_IPV4_TOS); | |
3778 | iscsi_conn_attr(ipv6_traffic_class, ISCSI_PARAM_IPV6_TC); | |
3779 | iscsi_conn_attr(ipv6_flow_label, ISCSI_PARAM_IPV6_FLOW_LABEL); | |
3780 | iscsi_conn_attr(is_fw_assigned_ipv6, ISCSI_PARAM_IS_FW_ASSIGNED_IPV6); | |
3781 | iscsi_conn_attr(tcp_xmit_wsf, ISCSI_PARAM_TCP_XMIT_WSF); | |
3782 | iscsi_conn_attr(tcp_recv_wsf, ISCSI_PARAM_TCP_RECV_WSF); | |
5af62f24 | 3783 | iscsi_conn_attr(local_ipaddr, ISCSI_PARAM_LOCAL_IPADDR); |
ae542edb | 3784 | |
1da177e4 | 3785 | |
289324b0 MC |
3786 | #define iscsi_conn_ep_attr_show(param) \ |
3787 | static ssize_t show_conn_ep_param_##param(struct device *dev, \ | |
3788 | struct device_attribute *attr,\ | |
3789 | char *buf) \ | |
3790 | { \ | |
3791 | struct iscsi_cls_conn *conn = iscsi_dev_to_conn(dev->parent); \ | |
3792 | struct iscsi_transport *t = conn->transport; \ | |
3793 | struct iscsi_endpoint *ep; \ | |
3794 | ssize_t rc; \ | |
3795 | \ | |
3796 | /* \ | |
3797 | * Need to make sure ep_disconnect does not free the LLD's \ | |
3798 | * interconnect resources while we are trying to read them. \ | |
3799 | */ \ | |
3800 | mutex_lock(&conn->ep_mutex); \ | |
3801 | ep = conn->ep; \ | |
3802 | if (!ep && t->ep_connect) { \ | |
3803 | mutex_unlock(&conn->ep_mutex); \ | |
3804 | return -ENOTCONN; \ | |
3805 | } \ | |
3806 | \ | |
3807 | if (ep) \ | |
3808 | rc = t->get_ep_param(ep, param, buf); \ | |
3809 | else \ | |
3810 | rc = t->get_conn_param(conn, param, buf); \ | |
3811 | mutex_unlock(&conn->ep_mutex); \ | |
3812 | return rc; \ | |
3813 | } | |
3814 | ||
3815 | #define iscsi_conn_ep_attr(field, param) \ | |
3816 | iscsi_conn_ep_attr_show(param) \ | |
3817 | static ISCSI_CLASS_ATTR(conn, field, S_IRUGO, \ | |
3818 | show_conn_ep_param_##param, NULL); | |
3819 | ||
3820 | iscsi_conn_ep_attr(address, ISCSI_PARAM_CONN_ADDRESS); | |
3821 | iscsi_conn_ep_attr(port, ISCSI_PARAM_CONN_PORT); | |
3822 | ||
3128c6c7 MC |
3823 | static struct attribute *iscsi_conn_attrs[] = { |
3824 | &dev_attr_conn_max_recv_dlength.attr, | |
3825 | &dev_attr_conn_max_xmit_dlength.attr, | |
3826 | &dev_attr_conn_header_digest.attr, | |
3827 | &dev_attr_conn_data_digest.attr, | |
3828 | &dev_attr_conn_ifmarker.attr, | |
3829 | &dev_attr_conn_ofmarker.attr, | |
3830 | &dev_attr_conn_address.attr, | |
3831 | &dev_attr_conn_port.attr, | |
3832 | &dev_attr_conn_exp_statsn.attr, | |
3833 | &dev_attr_conn_persistent_address.attr, | |
3834 | &dev_attr_conn_persistent_port.attr, | |
3835 | &dev_attr_conn_ping_tmo.attr, | |
3836 | &dev_attr_conn_recv_tmo.attr, | |
ae542edb AC |
3837 | &dev_attr_conn_local_port.attr, |
3838 | &dev_attr_conn_statsn.attr, | |
3839 | &dev_attr_conn_keepalive_tmo.attr, | |
3840 | &dev_attr_conn_max_segment_size.attr, | |
3841 | &dev_attr_conn_tcp_timestamp_stat.attr, | |
3842 | &dev_attr_conn_tcp_wsf_disable.attr, | |
3843 | &dev_attr_conn_tcp_nagle_disable.attr, | |
3844 | &dev_attr_conn_tcp_timer_scale.attr, | |
3845 | &dev_attr_conn_tcp_timestamp_enable.attr, | |
3846 | &dev_attr_conn_fragment_disable.attr, | |
3847 | &dev_attr_conn_ipv4_tos.attr, | |
3848 | &dev_attr_conn_ipv6_traffic_class.attr, | |
3849 | &dev_attr_conn_ipv6_flow_label.attr, | |
3850 | &dev_attr_conn_is_fw_assigned_ipv6.attr, | |
3851 | &dev_attr_conn_tcp_xmit_wsf.attr, | |
3852 | &dev_attr_conn_tcp_recv_wsf.attr, | |
5af62f24 | 3853 | &dev_attr_conn_local_ipaddr.attr, |
3128c6c7 MC |
3854 | NULL, |
3855 | }; | |
3856 | ||
587a1f16 | 3857 | static umode_t iscsi_conn_attr_is_visible(struct kobject *kobj, |
3128c6c7 MC |
3858 | struct attribute *attr, int i) |
3859 | { | |
3860 | struct device *cdev = container_of(kobj, struct device, kobj); | |
3861 | struct iscsi_cls_conn *conn = transport_class_to_conn(cdev); | |
3862 | struct iscsi_transport *t = conn->transport; | |
3863 | int param; | |
3864 | ||
3865 | if (attr == &dev_attr_conn_max_recv_dlength.attr) | |
3866 | param = ISCSI_PARAM_MAX_RECV_DLENGTH; | |
3867 | else if (attr == &dev_attr_conn_max_xmit_dlength.attr) | |
3868 | param = ISCSI_PARAM_MAX_XMIT_DLENGTH; | |
3869 | else if (attr == &dev_attr_conn_header_digest.attr) | |
3870 | param = ISCSI_PARAM_HDRDGST_EN; | |
3871 | else if (attr == &dev_attr_conn_data_digest.attr) | |
3872 | param = ISCSI_PARAM_DATADGST_EN; | |
3873 | else if (attr == &dev_attr_conn_ifmarker.attr) | |
3874 | param = ISCSI_PARAM_IFMARKER_EN; | |
3875 | else if (attr == &dev_attr_conn_ofmarker.attr) | |
3876 | param = ISCSI_PARAM_OFMARKER_EN; | |
3877 | else if (attr == &dev_attr_conn_address.attr) | |
3878 | param = ISCSI_PARAM_CONN_ADDRESS; | |
3879 | else if (attr == &dev_attr_conn_port.attr) | |
3880 | param = ISCSI_PARAM_CONN_PORT; | |
3881 | else if (attr == &dev_attr_conn_exp_statsn.attr) | |
3882 | param = ISCSI_PARAM_EXP_STATSN; | |
3883 | else if (attr == &dev_attr_conn_persistent_address.attr) | |
3884 | param = ISCSI_PARAM_PERSISTENT_ADDRESS; | |
3885 | else if (attr == &dev_attr_conn_persistent_port.attr) | |
3886 | param = ISCSI_PARAM_PERSISTENT_PORT; | |
3887 | else if (attr == &dev_attr_conn_ping_tmo.attr) | |
3888 | param = ISCSI_PARAM_PING_TMO; | |
3889 | else if (attr == &dev_attr_conn_recv_tmo.attr) | |
3890 | param = ISCSI_PARAM_RECV_TMO; | |
ae542edb AC |
3891 | else if (attr == &dev_attr_conn_local_port.attr) |
3892 | param = ISCSI_PARAM_LOCAL_PORT; | |
3893 | else if (attr == &dev_attr_conn_statsn.attr) | |
3894 | param = ISCSI_PARAM_STATSN; | |
3895 | else if (attr == &dev_attr_conn_keepalive_tmo.attr) | |
3896 | param = ISCSI_PARAM_KEEPALIVE_TMO; | |
3897 | else if (attr == &dev_attr_conn_max_segment_size.attr) | |
3898 | param = ISCSI_PARAM_MAX_SEGMENT_SIZE; | |
3899 | else if (attr == &dev_attr_conn_tcp_timestamp_stat.attr) | |
3900 | param = ISCSI_PARAM_TCP_TIMESTAMP_STAT; | |
3901 | else if (attr == &dev_attr_conn_tcp_wsf_disable.attr) | |
3902 | param = ISCSI_PARAM_TCP_WSF_DISABLE; | |
3903 | else if (attr == &dev_attr_conn_tcp_nagle_disable.attr) | |
3904 | param = ISCSI_PARAM_TCP_NAGLE_DISABLE; | |
3905 | else if (attr == &dev_attr_conn_tcp_timer_scale.attr) | |
3906 | param = ISCSI_PARAM_TCP_TIMER_SCALE; | |
3907 | else if (attr == &dev_attr_conn_tcp_timestamp_enable.attr) | |
3908 | param = ISCSI_PARAM_TCP_TIMESTAMP_EN; | |
3909 | else if (attr == &dev_attr_conn_fragment_disable.attr) | |
3910 | param = ISCSI_PARAM_IP_FRAGMENT_DISABLE; | |
3911 | else if (attr == &dev_attr_conn_ipv4_tos.attr) | |
3912 | param = ISCSI_PARAM_IPV4_TOS; | |
3913 | else if (attr == &dev_attr_conn_ipv6_traffic_class.attr) | |
3914 | param = ISCSI_PARAM_IPV6_TC; | |
3915 | else if (attr == &dev_attr_conn_ipv6_flow_label.attr) | |
3916 | param = ISCSI_PARAM_IPV6_FLOW_LABEL; | |
3917 | else if (attr == &dev_attr_conn_is_fw_assigned_ipv6.attr) | |
3918 | param = ISCSI_PARAM_IS_FW_ASSIGNED_IPV6; | |
3919 | else if (attr == &dev_attr_conn_tcp_xmit_wsf.attr) | |
3920 | param = ISCSI_PARAM_TCP_XMIT_WSF; | |
3921 | else if (attr == &dev_attr_conn_tcp_recv_wsf.attr) | |
3922 | param = ISCSI_PARAM_TCP_RECV_WSF; | |
5af62f24 AC |
3923 | else if (attr == &dev_attr_conn_local_ipaddr.attr) |
3924 | param = ISCSI_PARAM_LOCAL_IPADDR; | |
3128c6c7 MC |
3925 | else { |
3926 | WARN_ONCE(1, "Invalid conn attr"); | |
3927 | return 0; | |
3928 | } | |
3929 | ||
3930 | return t->attr_is_visible(ISCSI_PARAM, param); | |
3931 | } | |
3932 | ||
3933 | static struct attribute_group iscsi_conn_group = { | |
3934 | .attrs = iscsi_conn_attrs, | |
3935 | .is_visible = iscsi_conn_attr_is_visible, | |
3936 | }; | |
3937 | ||
1da177e4 | 3938 | /* |
0896b752 | 3939 | * iSCSI session attrs |
1da177e4 | 3940 | */ |
b2c64167 | 3941 | #define iscsi_session_attr_show(param, perm) \ |
fd7255f5 | 3942 | static ssize_t \ |
ee959b00 TJ |
3943 | show_session_param_##param(struct device *dev, \ |
3944 | struct device_attribute *attr, char *buf) \ | |
fd7255f5 | 3945 | { \ |
ee959b00 TJ |
3946 | struct iscsi_cls_session *session = \ |
3947 | iscsi_dev_to_session(dev->parent); \ | |
fd7255f5 | 3948 | struct iscsi_transport *t = session->transport; \ |
b2c64167 MC |
3949 | \ |
3950 | if (perm && !capable(CAP_SYS_ADMIN)) \ | |
3951 | return -EACCES; \ | |
a54a52ca | 3952 | return t->get_session_param(session, param, buf); \ |
fd7255f5 MC |
3953 | } |
3954 | ||
b2c64167 MC |
3955 | #define iscsi_session_attr(field, param, perm) \ |
3956 | iscsi_session_attr_show(param, perm) \ | |
a54a52ca | 3957 | static ISCSI_CLASS_ATTR(sess, field, S_IRUGO, show_session_param_##param, \ |
fd7255f5 | 3958 | NULL); |
b2c64167 MC |
3959 | iscsi_session_attr(targetname, ISCSI_PARAM_TARGET_NAME, 0); |
3960 | iscsi_session_attr(initial_r2t, ISCSI_PARAM_INITIAL_R2T_EN, 0); | |
3961 | iscsi_session_attr(max_outstanding_r2t, ISCSI_PARAM_MAX_R2T, 0); | |
3962 | iscsi_session_attr(immediate_data, ISCSI_PARAM_IMM_DATA_EN, 0); | |
3963 | iscsi_session_attr(first_burst_len, ISCSI_PARAM_FIRST_BURST, 0); | |
3964 | iscsi_session_attr(max_burst_len, ISCSI_PARAM_MAX_BURST, 0); | |
3965 | iscsi_session_attr(data_pdu_in_order, ISCSI_PARAM_PDU_INORDER_EN, 0); | |
3966 | iscsi_session_attr(data_seq_in_order, ISCSI_PARAM_DATASEQ_INORDER_EN, 0); | |
3967 | iscsi_session_attr(erl, ISCSI_PARAM_ERL, 0); | |
3968 | iscsi_session_attr(tpgt, ISCSI_PARAM_TPGT, 0); | |
3969 | iscsi_session_attr(username, ISCSI_PARAM_USERNAME, 1); | |
3970 | iscsi_session_attr(username_in, ISCSI_PARAM_USERNAME_IN, 1); | |
3971 | iscsi_session_attr(password, ISCSI_PARAM_PASSWORD, 1); | |
3972 | iscsi_session_attr(password_in, ISCSI_PARAM_PASSWORD_IN, 1); | |
30534952 MC |
3973 | iscsi_session_attr(chap_out_idx, ISCSI_PARAM_CHAP_OUT_IDX, 1); |
3974 | iscsi_session_attr(chap_in_idx, ISCSI_PARAM_CHAP_IN_IDX, 1); | |
4cd49ea1 MC |
3975 | iscsi_session_attr(fast_abort, ISCSI_PARAM_FAST_ABORT, 0); |
3976 | iscsi_session_attr(abort_tmo, ISCSI_PARAM_ABORT_TMO, 0); | |
3977 | iscsi_session_attr(lu_reset_tmo, ISCSI_PARAM_LU_RESET_TMO, 0); | |
3fe5ae8b | 3978 | iscsi_session_attr(tgt_reset_tmo, ISCSI_PARAM_TGT_RESET_TMO, 0); |
88dfd340 | 3979 | iscsi_session_attr(ifacename, ISCSI_PARAM_IFACE_NAME, 0); |
3b2bef1f VC |
3980 | iscsi_session_attr(initiatorname, ISCSI_PARAM_INITIATOR_NAME, 0); |
3981 | iscsi_session_attr(targetalias, ISCSI_PARAM_TARGET_ALIAS, 0); | |
3b9373e9 EW |
3982 | iscsi_session_attr(boot_root, ISCSI_PARAM_BOOT_ROOT, 0); |
3983 | iscsi_session_attr(boot_nic, ISCSI_PARAM_BOOT_NIC, 0); | |
3984 | iscsi_session_attr(boot_target, ISCSI_PARAM_BOOT_TARGET, 0); | |
ae542edb AC |
3985 | iscsi_session_attr(auto_snd_tgt_disable, ISCSI_PARAM_AUTO_SND_TGT_DISABLE, 0); |
3986 | iscsi_session_attr(discovery_session, ISCSI_PARAM_DISCOVERY_SESS, 0); | |
3987 | iscsi_session_attr(portal_type, ISCSI_PARAM_PORTAL_TYPE, 0); | |
3988 | iscsi_session_attr(chap_auth, ISCSI_PARAM_CHAP_AUTH_EN, 0); | |
3989 | iscsi_session_attr(discovery_logout, ISCSI_PARAM_DISCOVERY_LOGOUT_EN, 0); | |
3990 | iscsi_session_attr(bidi_chap, ISCSI_PARAM_BIDI_CHAP_EN, 0); | |
3991 | iscsi_session_attr(discovery_auth_optional, | |
3992 | ISCSI_PARAM_DISCOVERY_AUTH_OPTIONAL, 0); | |
3993 | iscsi_session_attr(def_time2wait, ISCSI_PARAM_DEF_TIME2WAIT, 0); | |
3994 | iscsi_session_attr(def_time2retain, ISCSI_PARAM_DEF_TIME2RETAIN, 0); | |
3995 | iscsi_session_attr(isid, ISCSI_PARAM_ISID, 0); | |
3996 | iscsi_session_attr(tsid, ISCSI_PARAM_TSID, 0); | |
3997 | iscsi_session_attr(def_taskmgmt_tmo, ISCSI_PARAM_DEF_TASKMGMT_TMO, 0); | |
3998 | iscsi_session_attr(discovery_parent_idx, ISCSI_PARAM_DISCOVERY_PARENT_IDX, 0); | |
3999 | iscsi_session_attr(discovery_parent_type, ISCSI_PARAM_DISCOVERY_PARENT_TYPE, 0); | |
1da177e4 | 4000 | |
6eabafbe | 4001 | static ssize_t |
ee959b00 TJ |
4002 | show_priv_session_state(struct device *dev, struct device_attribute *attr, |
4003 | char *buf) | |
6eabafbe | 4004 | { |
ee959b00 | 4005 | struct iscsi_cls_session *session = iscsi_dev_to_session(dev->parent); |
6eabafbe MC |
4006 | return sprintf(buf, "%s\n", iscsi_session_state_name(session->state)); |
4007 | } | |
4008 | static ISCSI_CLASS_ATTR(priv_sess, state, S_IRUGO, show_priv_session_state, | |
4009 | NULL); | |
0c70d84b MC |
4010 | static ssize_t |
4011 | show_priv_session_creator(struct device *dev, struct device_attribute *attr, | |
4012 | char *buf) | |
4013 | { | |
4014 | struct iscsi_cls_session *session = iscsi_dev_to_session(dev->parent); | |
4015 | return sprintf(buf, "%d\n", session->creator); | |
4016 | } | |
4017 | static ISCSI_CLASS_ATTR(priv_sess, creator, S_IRUGO, show_priv_session_creator, | |
4018 | NULL); | |
930a9f04 MR |
4019 | static ssize_t |
4020 | show_priv_session_target_id(struct device *dev, struct device_attribute *attr, | |
4021 | char *buf) | |
4022 | { | |
4023 | struct iscsi_cls_session *session = iscsi_dev_to_session(dev->parent); | |
4024 | return sprintf(buf, "%d\n", session->target_id); | |
4025 | } | |
4026 | static ISCSI_CLASS_ATTR(priv_sess, target_id, S_IRUGO, | |
4027 | show_priv_session_target_id, NULL); | |
6eabafbe | 4028 | |
fd7255f5 MC |
4029 | #define iscsi_priv_session_attr_show(field, format) \ |
4030 | static ssize_t \ | |
ee959b00 TJ |
4031 | show_priv_session_##field(struct device *dev, \ |
4032 | struct device_attribute *attr, char *buf) \ | |
fd7255f5 | 4033 | { \ |
ee959b00 TJ |
4034 | struct iscsi_cls_session *session = \ |
4035 | iscsi_dev_to_session(dev->parent); \ | |
fe4f0bde VC |
4036 | if (session->field == -1) \ |
4037 | return sprintf(buf, "off\n"); \ | |
fd7255f5 MC |
4038 | return sprintf(buf, format"\n", session->field); \ |
4039 | } | |
4040 | ||
fe4f0bde VC |
4041 | #define iscsi_priv_session_attr_store(field) \ |
4042 | static ssize_t \ | |
4043 | store_priv_session_##field(struct device *dev, \ | |
4044 | struct device_attribute *attr, \ | |
4045 | const char *buf, size_t count) \ | |
4046 | { \ | |
4047 | int val; \ | |
4048 | char *cp; \ | |
4049 | struct iscsi_cls_session *session = \ | |
4050 | iscsi_dev_to_session(dev->parent); \ | |
4051 | if ((session->state == ISCSI_SESSION_FREE) || \ | |
4052 | (session->state == ISCSI_SESSION_FAILED)) \ | |
4053 | return -EBUSY; \ | |
9c8108a4 | 4054 | if (strncmp(buf, "off", 3) == 0) { \ |
fe4f0bde | 4055 | session->field = -1; \ |
9c8108a4 CL |
4056 | session->field##_sysfs_override = true; \ |
4057 | } else { \ | |
fe4f0bde VC |
4058 | val = simple_strtoul(buf, &cp, 0); \ |
4059 | if (*cp != '\0' && *cp != '\n') \ | |
4060 | return -EINVAL; \ | |
4061 | session->field = val; \ | |
9c8108a4 | 4062 | session->field##_sysfs_override = true; \ |
fe4f0bde VC |
4063 | } \ |
4064 | return count; \ | |
4065 | } | |
4066 | ||
4067 | #define iscsi_priv_session_rw_attr(field, format) \ | |
fd7255f5 | 4068 | iscsi_priv_session_attr_show(field, format) \ |
fe4f0bde | 4069 | iscsi_priv_session_attr_store(field) \ |
523f3c80 | 4070 | static ISCSI_CLASS_ATTR(priv_sess, field, S_IRUGO | S_IWUSR, \ |
fe4f0bde VC |
4071 | show_priv_session_##field, \ |
4072 | store_priv_session_##field) | |
9c8108a4 | 4073 | |
fe4f0bde | 4074 | iscsi_priv_session_rw_attr(recovery_tmo, "%d"); |
fd7255f5 | 4075 | |
1d063c17 MC |
4076 | static struct attribute *iscsi_session_attrs[] = { |
4077 | &dev_attr_sess_initial_r2t.attr, | |
4078 | &dev_attr_sess_max_outstanding_r2t.attr, | |
4079 | &dev_attr_sess_immediate_data.attr, | |
4080 | &dev_attr_sess_first_burst_len.attr, | |
4081 | &dev_attr_sess_max_burst_len.attr, | |
4082 | &dev_attr_sess_data_pdu_in_order.attr, | |
4083 | &dev_attr_sess_data_seq_in_order.attr, | |
4084 | &dev_attr_sess_erl.attr, | |
4085 | &dev_attr_sess_targetname.attr, | |
4086 | &dev_attr_sess_tpgt.attr, | |
4087 | &dev_attr_sess_password.attr, | |
4088 | &dev_attr_sess_password_in.attr, | |
4089 | &dev_attr_sess_username.attr, | |
4090 | &dev_attr_sess_username_in.attr, | |
4091 | &dev_attr_sess_fast_abort.attr, | |
4092 | &dev_attr_sess_abort_tmo.attr, | |
4093 | &dev_attr_sess_lu_reset_tmo.attr, | |
4094 | &dev_attr_sess_tgt_reset_tmo.attr, | |
4095 | &dev_attr_sess_ifacename.attr, | |
4096 | &dev_attr_sess_initiatorname.attr, | |
4097 | &dev_attr_sess_targetalias.attr, | |
3b9373e9 EW |
4098 | &dev_attr_sess_boot_root.attr, |
4099 | &dev_attr_sess_boot_nic.attr, | |
4100 | &dev_attr_sess_boot_target.attr, | |
1d063c17 MC |
4101 | &dev_attr_priv_sess_recovery_tmo.attr, |
4102 | &dev_attr_priv_sess_state.attr, | |
0c70d84b | 4103 | &dev_attr_priv_sess_creator.attr, |
30534952 MC |
4104 | &dev_attr_sess_chap_out_idx.attr, |
4105 | &dev_attr_sess_chap_in_idx.attr, | |
930a9f04 | 4106 | &dev_attr_priv_sess_target_id.attr, |
ae542edb AC |
4107 | &dev_attr_sess_auto_snd_tgt_disable.attr, |
4108 | &dev_attr_sess_discovery_session.attr, | |
4109 | &dev_attr_sess_portal_type.attr, | |
4110 | &dev_attr_sess_chap_auth.attr, | |
4111 | &dev_attr_sess_discovery_logout.attr, | |
4112 | &dev_attr_sess_bidi_chap.attr, | |
4113 | &dev_attr_sess_discovery_auth_optional.attr, | |
4114 | &dev_attr_sess_def_time2wait.attr, | |
4115 | &dev_attr_sess_def_time2retain.attr, | |
4116 | &dev_attr_sess_isid.attr, | |
4117 | &dev_attr_sess_tsid.attr, | |
4118 | &dev_attr_sess_def_taskmgmt_tmo.attr, | |
4119 | &dev_attr_sess_discovery_parent_idx.attr, | |
4120 | &dev_attr_sess_discovery_parent_type.attr, | |
1d063c17 MC |
4121 | NULL, |
4122 | }; | |
4123 | ||
587a1f16 | 4124 | static umode_t iscsi_session_attr_is_visible(struct kobject *kobj, |
1d063c17 MC |
4125 | struct attribute *attr, int i) |
4126 | { | |
4127 | struct device *cdev = container_of(kobj, struct device, kobj); | |
4128 | struct iscsi_cls_session *session = transport_class_to_session(cdev); | |
4129 | struct iscsi_transport *t = session->transport; | |
4130 | int param; | |
4131 | ||
4132 | if (attr == &dev_attr_sess_initial_r2t.attr) | |
4133 | param = ISCSI_PARAM_INITIAL_R2T_EN; | |
4134 | else if (attr == &dev_attr_sess_max_outstanding_r2t.attr) | |
4135 | param = ISCSI_PARAM_MAX_R2T; | |
4136 | else if (attr == &dev_attr_sess_immediate_data.attr) | |
4137 | param = ISCSI_PARAM_IMM_DATA_EN; | |
4138 | else if (attr == &dev_attr_sess_first_burst_len.attr) | |
4139 | param = ISCSI_PARAM_FIRST_BURST; | |
4140 | else if (attr == &dev_attr_sess_max_burst_len.attr) | |
4141 | param = ISCSI_PARAM_MAX_BURST; | |
4142 | else if (attr == &dev_attr_sess_data_pdu_in_order.attr) | |
4143 | param = ISCSI_PARAM_PDU_INORDER_EN; | |
4144 | else if (attr == &dev_attr_sess_data_seq_in_order.attr) | |
4145 | param = ISCSI_PARAM_DATASEQ_INORDER_EN; | |
4146 | else if (attr == &dev_attr_sess_erl.attr) | |
4147 | param = ISCSI_PARAM_ERL; | |
4148 | else if (attr == &dev_attr_sess_targetname.attr) | |
4149 | param = ISCSI_PARAM_TARGET_NAME; | |
4150 | else if (attr == &dev_attr_sess_tpgt.attr) | |
4151 | param = ISCSI_PARAM_TPGT; | |
30534952 MC |
4152 | else if (attr == &dev_attr_sess_chap_in_idx.attr) |
4153 | param = ISCSI_PARAM_CHAP_IN_IDX; | |
4154 | else if (attr == &dev_attr_sess_chap_out_idx.attr) | |
4155 | param = ISCSI_PARAM_CHAP_OUT_IDX; | |
1d063c17 MC |
4156 | else if (attr == &dev_attr_sess_password.attr) |
4157 | param = ISCSI_PARAM_USERNAME; | |
4158 | else if (attr == &dev_attr_sess_password_in.attr) | |
4159 | param = ISCSI_PARAM_USERNAME_IN; | |
4160 | else if (attr == &dev_attr_sess_username.attr) | |
4161 | param = ISCSI_PARAM_PASSWORD; | |
4162 | else if (attr == &dev_attr_sess_username_in.attr) | |
4163 | param = ISCSI_PARAM_PASSWORD_IN; | |
4164 | else if (attr == &dev_attr_sess_fast_abort.attr) | |
4165 | param = ISCSI_PARAM_FAST_ABORT; | |
4166 | else if (attr == &dev_attr_sess_abort_tmo.attr) | |
4167 | param = ISCSI_PARAM_ABORT_TMO; | |
4168 | else if (attr == &dev_attr_sess_lu_reset_tmo.attr) | |
4169 | param = ISCSI_PARAM_LU_RESET_TMO; | |
4170 | else if (attr == &dev_attr_sess_tgt_reset_tmo.attr) | |
4171 | param = ISCSI_PARAM_TGT_RESET_TMO; | |
4172 | else if (attr == &dev_attr_sess_ifacename.attr) | |
4173 | param = ISCSI_PARAM_IFACE_NAME; | |
4174 | else if (attr == &dev_attr_sess_initiatorname.attr) | |
4175 | param = ISCSI_PARAM_INITIATOR_NAME; | |
4176 | else if (attr == &dev_attr_sess_targetalias.attr) | |
4177 | param = ISCSI_PARAM_TARGET_ALIAS; | |
3b9373e9 EW |
4178 | else if (attr == &dev_attr_sess_boot_root.attr) |
4179 | param = ISCSI_PARAM_BOOT_ROOT; | |
4180 | else if (attr == &dev_attr_sess_boot_nic.attr) | |
4181 | param = ISCSI_PARAM_BOOT_NIC; | |
4182 | else if (attr == &dev_attr_sess_boot_target.attr) | |
4183 | param = ISCSI_PARAM_BOOT_TARGET; | |
ae542edb AC |
4184 | else if (attr == &dev_attr_sess_auto_snd_tgt_disable.attr) |
4185 | param = ISCSI_PARAM_AUTO_SND_TGT_DISABLE; | |
4186 | else if (attr == &dev_attr_sess_discovery_session.attr) | |
4187 | param = ISCSI_PARAM_DISCOVERY_SESS; | |
4188 | else if (attr == &dev_attr_sess_portal_type.attr) | |
4189 | param = ISCSI_PARAM_PORTAL_TYPE; | |
4190 | else if (attr == &dev_attr_sess_chap_auth.attr) | |
4191 | param = ISCSI_PARAM_CHAP_AUTH_EN; | |
4192 | else if (attr == &dev_attr_sess_discovery_logout.attr) | |
4193 | param = ISCSI_PARAM_DISCOVERY_LOGOUT_EN; | |
4194 | else if (attr == &dev_attr_sess_bidi_chap.attr) | |
4195 | param = ISCSI_PARAM_BIDI_CHAP_EN; | |
4196 | else if (attr == &dev_attr_sess_discovery_auth_optional.attr) | |
4197 | param = ISCSI_PARAM_DISCOVERY_AUTH_OPTIONAL; | |
4198 | else if (attr == &dev_attr_sess_def_time2wait.attr) | |
4199 | param = ISCSI_PARAM_DEF_TIME2WAIT; | |
4200 | else if (attr == &dev_attr_sess_def_time2retain.attr) | |
4201 | param = ISCSI_PARAM_DEF_TIME2RETAIN; | |
4202 | else if (attr == &dev_attr_sess_isid.attr) | |
4203 | param = ISCSI_PARAM_ISID; | |
4204 | else if (attr == &dev_attr_sess_tsid.attr) | |
4205 | param = ISCSI_PARAM_TSID; | |
4206 | else if (attr == &dev_attr_sess_def_taskmgmt_tmo.attr) | |
4207 | param = ISCSI_PARAM_DEF_TASKMGMT_TMO; | |
4208 | else if (attr == &dev_attr_sess_discovery_parent_idx.attr) | |
4209 | param = ISCSI_PARAM_DISCOVERY_PARENT_IDX; | |
4210 | else if (attr == &dev_attr_sess_discovery_parent_type.attr) | |
4211 | param = ISCSI_PARAM_DISCOVERY_PARENT_TYPE; | |
1d063c17 MC |
4212 | else if (attr == &dev_attr_priv_sess_recovery_tmo.attr) |
4213 | return S_IRUGO | S_IWUSR; | |
4214 | else if (attr == &dev_attr_priv_sess_state.attr) | |
4215 | return S_IRUGO; | |
0c70d84b MC |
4216 | else if (attr == &dev_attr_priv_sess_creator.attr) |
4217 | return S_IRUGO; | |
930a9f04 MR |
4218 | else if (attr == &dev_attr_priv_sess_target_id.attr) |
4219 | return S_IRUGO; | |
1d063c17 MC |
4220 | else { |
4221 | WARN_ONCE(1, "Invalid session attr"); | |
4222 | return 0; | |
4223 | } | |
4224 | ||
4225 | return t->attr_is_visible(ISCSI_PARAM, param); | |
4226 | } | |
4227 | ||
4228 | static struct attribute_group iscsi_session_group = { | |
4229 | .attrs = iscsi_session_attrs, | |
4230 | .is_visible = iscsi_session_attr_is_visible, | |
4231 | }; | |
4232 | ||
1819dc81 MC |
4233 | /* |
4234 | * iSCSI host attrs | |
4235 | */ | |
4236 | #define iscsi_host_attr_show(param) \ | |
4237 | static ssize_t \ | |
ee959b00 TJ |
4238 | show_host_param_##param(struct device *dev, \ |
4239 | struct device_attribute *attr, char *buf) \ | |
1819dc81 | 4240 | { \ |
ee959b00 | 4241 | struct Scsi_Host *shost = transport_class_to_shost(dev); \ |
1819dc81 MC |
4242 | struct iscsi_internal *priv = to_iscsi_internal(shost->transportt); \ |
4243 | return priv->iscsi_transport->get_host_param(shost, param, buf); \ | |
4244 | } | |
4245 | ||
4246 | #define iscsi_host_attr(field, param) \ | |
4247 | iscsi_host_attr_show(param) \ | |
4248 | static ISCSI_CLASS_ATTR(host, field, S_IRUGO, show_host_param_##param, \ | |
4249 | NULL); | |
4250 | ||
d8196ed2 | 4251 | iscsi_host_attr(netdev, ISCSI_HOST_PARAM_NETDEV_NAME); |
1819dc81 | 4252 | iscsi_host_attr(hwaddress, ISCSI_HOST_PARAM_HWADDRESS); |
d8196ed2 | 4253 | iscsi_host_attr(ipaddress, ISCSI_HOST_PARAM_IPADDRESS); |
8ad5781a | 4254 | iscsi_host_attr(initiatorname, ISCSI_HOST_PARAM_INITIATOR_NAME); |
aeddde29 VC |
4255 | iscsi_host_attr(port_state, ISCSI_HOST_PARAM_PORT_STATE); |
4256 | iscsi_host_attr(port_speed, ISCSI_HOST_PARAM_PORT_SPEED); | |
1819dc81 | 4257 | |
f27fb2ef MC |
4258 | static struct attribute *iscsi_host_attrs[] = { |
4259 | &dev_attr_host_netdev.attr, | |
4260 | &dev_attr_host_hwaddress.attr, | |
4261 | &dev_attr_host_ipaddress.attr, | |
4262 | &dev_attr_host_initiatorname.attr, | |
aeddde29 VC |
4263 | &dev_attr_host_port_state.attr, |
4264 | &dev_attr_host_port_speed.attr, | |
f27fb2ef MC |
4265 | NULL, |
4266 | }; | |
4267 | ||
587a1f16 | 4268 | static umode_t iscsi_host_attr_is_visible(struct kobject *kobj, |
f27fb2ef MC |
4269 | struct attribute *attr, int i) |
4270 | { | |
4271 | struct device *cdev = container_of(kobj, struct device, kobj); | |
4272 | struct Scsi_Host *shost = transport_class_to_shost(cdev); | |
4273 | struct iscsi_internal *priv = to_iscsi_internal(shost->transportt); | |
4274 | int param; | |
4275 | ||
4276 | if (attr == &dev_attr_host_netdev.attr) | |
4277 | param = ISCSI_HOST_PARAM_NETDEV_NAME; | |
4278 | else if (attr == &dev_attr_host_hwaddress.attr) | |
4279 | param = ISCSI_HOST_PARAM_HWADDRESS; | |
4280 | else if (attr == &dev_attr_host_ipaddress.attr) | |
4281 | param = ISCSI_HOST_PARAM_IPADDRESS; | |
4282 | else if (attr == &dev_attr_host_initiatorname.attr) | |
4283 | param = ISCSI_HOST_PARAM_INITIATOR_NAME; | |
aeddde29 VC |
4284 | else if (attr == &dev_attr_host_port_state.attr) |
4285 | param = ISCSI_HOST_PARAM_PORT_STATE; | |
4286 | else if (attr == &dev_attr_host_port_speed.attr) | |
4287 | param = ISCSI_HOST_PARAM_PORT_SPEED; | |
f27fb2ef MC |
4288 | else { |
4289 | WARN_ONCE(1, "Invalid host attr"); | |
4290 | return 0; | |
4291 | } | |
4292 | ||
4293 | return priv->iscsi_transport->attr_is_visible(ISCSI_HOST_PARAM, param); | |
4294 | } | |
4295 | ||
4296 | static struct attribute_group iscsi_host_group = { | |
4297 | .attrs = iscsi_host_attrs, | |
4298 | .is_visible = iscsi_host_attr_is_visible, | |
4299 | }; | |
1819dc81 | 4300 | |
aeddde29 VC |
4301 | /* convert iscsi_port_speed values to ascii string name */ |
4302 | static const struct { | |
4303 | enum iscsi_port_speed value; | |
4304 | char *name; | |
4305 | } iscsi_port_speed_names[] = { | |
4306 | {ISCSI_PORT_SPEED_UNKNOWN, "Unknown" }, | |
4307 | {ISCSI_PORT_SPEED_10MBPS, "10 Mbps" }, | |
4308 | {ISCSI_PORT_SPEED_100MBPS, "100 Mbps" }, | |
4309 | {ISCSI_PORT_SPEED_1GBPS, "1 Gbps" }, | |
4310 | {ISCSI_PORT_SPEED_10GBPS, "10 Gbps" }, | |
f9e4fa46 JB |
4311 | {ISCSI_PORT_SPEED_25GBPS, "25 Gbps" }, |
4312 | {ISCSI_PORT_SPEED_40GBPS, "40 Gbps" }, | |
aeddde29 VC |
4313 | }; |
4314 | ||
4315 | char *iscsi_get_port_speed_name(struct Scsi_Host *shost) | |
4316 | { | |
4317 | int i; | |
4318 | char *speed = "Unknown!"; | |
4319 | struct iscsi_cls_host *ihost = shost->shost_data; | |
4320 | uint32_t port_speed = ihost->port_speed; | |
4321 | ||
4322 | for (i = 0; i < ARRAY_SIZE(iscsi_port_speed_names); i++) { | |
4323 | if (iscsi_port_speed_names[i].value & port_speed) { | |
4324 | speed = iscsi_port_speed_names[i].name; | |
4325 | break; | |
4326 | } | |
4327 | } | |
4328 | return speed; | |
4329 | } | |
4330 | EXPORT_SYMBOL_GPL(iscsi_get_port_speed_name); | |
4331 | ||
4332 | /* convert iscsi_port_state values to ascii string name */ | |
4333 | static const struct { | |
4334 | enum iscsi_port_state value; | |
4335 | char *name; | |
4336 | } iscsi_port_state_names[] = { | |
4337 | {ISCSI_PORT_STATE_DOWN, "LINK DOWN" }, | |
4338 | {ISCSI_PORT_STATE_UP, "LINK UP" }, | |
4339 | }; | |
4340 | ||
4341 | char *iscsi_get_port_state_name(struct Scsi_Host *shost) | |
4342 | { | |
4343 | int i; | |
4344 | char *state = "Unknown!"; | |
4345 | struct iscsi_cls_host *ihost = shost->shost_data; | |
4346 | uint32_t port_state = ihost->port_state; | |
4347 | ||
4348 | for (i = 0; i < ARRAY_SIZE(iscsi_port_state_names); i++) { | |
4349 | if (iscsi_port_state_names[i].value & port_state) { | |
4350 | state = iscsi_port_state_names[i].name; | |
4351 | break; | |
4352 | } | |
4353 | } | |
4354 | return state; | |
4355 | } | |
4356 | EXPORT_SYMBOL_GPL(iscsi_get_port_state_name); | |
4357 | ||
0896b752 AA |
4358 | static int iscsi_session_match(struct attribute_container *cont, |
4359 | struct device *dev) | |
1da177e4 | 4360 | { |
7b8631b5 | 4361 | struct iscsi_cls_session *session; |
1da177e4 | 4362 | struct Scsi_Host *shost; |
0896b752 AA |
4363 | struct iscsi_internal *priv; |
4364 | ||
4365 | if (!iscsi_is_session_dev(dev)) | |
4366 | return 0; | |
1da177e4 | 4367 | |
7b8631b5 MC |
4368 | session = iscsi_dev_to_session(dev); |
4369 | shost = iscsi_session_to_shost(session); | |
0896b752 | 4370 | if (!shost->transportt) |
1da177e4 LT |
4371 | return 0; |
4372 | ||
0896b752 AA |
4373 | priv = to_iscsi_internal(shost->transportt); |
4374 | if (priv->session_cont.ac.class != &iscsi_session_class.class) | |
1da177e4 LT |
4375 | return 0; |
4376 | ||
0896b752 | 4377 | return &priv->session_cont.ac == cont; |
1da177e4 LT |
4378 | } |
4379 | ||
0896b752 AA |
4380 | static int iscsi_conn_match(struct attribute_container *cont, |
4381 | struct device *dev) | |
4382 | { | |
7b8631b5 MC |
4383 | struct iscsi_cls_session *session; |
4384 | struct iscsi_cls_conn *conn; | |
1da177e4 | 4385 | struct Scsi_Host *shost; |
0896b752 | 4386 | struct iscsi_internal *priv; |
1da177e4 | 4387 | |
0896b752 | 4388 | if (!iscsi_is_conn_dev(dev)) |
1da177e4 LT |
4389 | return 0; |
4390 | ||
7b8631b5 MC |
4391 | conn = iscsi_dev_to_conn(dev); |
4392 | session = iscsi_dev_to_session(conn->dev.parent); | |
4393 | shost = iscsi_session_to_shost(session); | |
4394 | ||
0896b752 | 4395 | if (!shost->transportt) |
1da177e4 LT |
4396 | return 0; |
4397 | ||
0896b752 AA |
4398 | priv = to_iscsi_internal(shost->transportt); |
4399 | if (priv->conn_cont.ac.class != &iscsi_connection_class.class) | |
4400 | return 0; | |
1da177e4 | 4401 | |
0896b752 AA |
4402 | return &priv->conn_cont.ac == cont; |
4403 | } | |
4404 | ||
30a6c652 MC |
4405 | static int iscsi_host_match(struct attribute_container *cont, |
4406 | struct device *dev) | |
4407 | { | |
4408 | struct Scsi_Host *shost; | |
4409 | struct iscsi_internal *priv; | |
4410 | ||
4411 | if (!scsi_is_host_device(dev)) | |
4412 | return 0; | |
4413 | ||
4414 | shost = dev_to_shost(dev); | |
4415 | if (!shost->transportt || | |
4416 | shost->transportt->host_attrs.ac.class != &iscsi_host_class.class) | |
4417 | return 0; | |
4418 | ||
4419 | priv = to_iscsi_internal(shost->transportt); | |
4420 | return &priv->t.host_attrs.ac == cont; | |
4421 | } | |
4422 | ||
7b8631b5 MC |
4423 | struct scsi_transport_template * |
4424 | iscsi_register_transport(struct iscsi_transport *tt) | |
0896b752 AA |
4425 | { |
4426 | struct iscsi_internal *priv; | |
4427 | unsigned long flags; | |
f27fb2ef | 4428 | int err; |
0896b752 AA |
4429 | |
4430 | BUG_ON(!tt); | |
4431 | ||
4432 | priv = iscsi_if_transport_lookup(tt); | |
4433 | if (priv) | |
7b8631b5 | 4434 | return NULL; |
0896b752 | 4435 | |
24669f75 | 4436 | priv = kzalloc(sizeof(*priv), GFP_KERNEL); |
0896b752 | 4437 | if (!priv) |
7b8631b5 | 4438 | return NULL; |
0896b752 | 4439 | INIT_LIST_HEAD(&priv->list); |
0896b752 | 4440 | priv->iscsi_transport = tt; |
30a6c652 | 4441 | priv->t.user_scan = iscsi_user_scan; |
06d25af4 | 4442 | priv->t.create_work_queue = 1; |
0896b752 | 4443 | |
ee959b00 | 4444 | priv->dev.class = &iscsi_transport_class; |
71610f55 | 4445 | dev_set_name(&priv->dev, "%s", tt->name); |
ee959b00 | 4446 | err = device_register(&priv->dev); |
0896b752 AA |
4447 | if (err) |
4448 | goto free_priv; | |
4449 | ||
ee959b00 | 4450 | err = sysfs_create_group(&priv->dev.kobj, &iscsi_transport_group); |
0896b752 | 4451 | if (err) |
ee959b00 | 4452 | goto unregister_dev; |
0896b752 | 4453 | |
30a6c652 | 4454 | /* host parameters */ |
30a6c652 MC |
4455 | priv->t.host_attrs.ac.class = &iscsi_host_class.class; |
4456 | priv->t.host_attrs.ac.match = iscsi_host_match; | |
f27fb2ef | 4457 | priv->t.host_attrs.ac.grp = &iscsi_host_group; |
32c6e1b9 | 4458 | priv->t.host_size = sizeof(struct iscsi_cls_host); |
30a6c652 MC |
4459 | transport_container_register(&priv->t.host_attrs); |
4460 | ||
0896b752 | 4461 | /* connection parameters */ |
0896b752 AA |
4462 | priv->conn_cont.ac.class = &iscsi_connection_class.class; |
4463 | priv->conn_cont.ac.match = iscsi_conn_match; | |
3128c6c7 | 4464 | priv->conn_cont.ac.grp = &iscsi_conn_group; |
0896b752 | 4465 | transport_container_register(&priv->conn_cont); |
1da177e4 | 4466 | |
0896b752 | 4467 | /* session parameters */ |
0896b752 AA |
4468 | priv->session_cont.ac.class = &iscsi_session_class.class; |
4469 | priv->session_cont.ac.match = iscsi_session_match; | |
1d063c17 | 4470 | priv->session_cont.ac.grp = &iscsi_session_group; |
0896b752 AA |
4471 | transport_container_register(&priv->session_cont); |
4472 | ||
0896b752 AA |
4473 | spin_lock_irqsave(&iscsi_transport_lock, flags); |
4474 | list_add(&priv->list, &iscsi_transports); | |
4475 | spin_unlock_irqrestore(&iscsi_transport_lock, flags); | |
4476 | ||
4477 | printk(KERN_NOTICE "iscsi: registered transport (%s)\n", tt->name); | |
7b8631b5 | 4478 | return &priv->t; |
1da177e4 | 4479 | |
ee959b00 TJ |
4480 | unregister_dev: |
4481 | device_unregister(&priv->dev); | |
d82ff9be | 4482 | return NULL; |
0896b752 AA |
4483 | free_priv: |
4484 | kfree(priv); | |
7b8631b5 | 4485 | return NULL; |
1da177e4 | 4486 | } |
0896b752 AA |
4487 | EXPORT_SYMBOL_GPL(iscsi_register_transport); |
4488 | ||
4489 | int iscsi_unregister_transport(struct iscsi_transport *tt) | |
4490 | { | |
4491 | struct iscsi_internal *priv; | |
4492 | unsigned long flags; | |
4493 | ||
4494 | BUG_ON(!tt); | |
4495 | ||
0b950672 | 4496 | mutex_lock(&rx_queue_mutex); |
0896b752 AA |
4497 | |
4498 | priv = iscsi_if_transport_lookup(tt); | |
4499 | BUG_ON (!priv); | |
4500 | ||
0896b752 AA |
4501 | spin_lock_irqsave(&iscsi_transport_lock, flags); |
4502 | list_del(&priv->list); | |
4503 | spin_unlock_irqrestore(&iscsi_transport_lock, flags); | |
4504 | ||
4505 | transport_container_unregister(&priv->conn_cont); | |
4506 | transport_container_unregister(&priv->session_cont); | |
30a6c652 | 4507 | transport_container_unregister(&priv->t.host_attrs); |
0896b752 | 4508 | |
ee959b00 TJ |
4509 | sysfs_remove_group(&priv->dev.kobj, &iscsi_transport_group); |
4510 | device_unregister(&priv->dev); | |
0b950672 | 4511 | mutex_unlock(&rx_queue_mutex); |
1da177e4 | 4512 | |
0896b752 AA |
4513 | return 0; |
4514 | } | |
4515 | EXPORT_SYMBOL_GPL(iscsi_unregister_transport); | |
1da177e4 | 4516 | |
c2332b00 FH |
4517 | void iscsi_dbg_trace(void (*trace)(struct device *dev, struct va_format *), |
4518 | struct device *dev, const char *fmt, ...) | |
4519 | { | |
4520 | struct va_format vaf; | |
4521 | va_list args; | |
4522 | ||
4523 | va_start(args, fmt); | |
4524 | vaf.fmt = fmt; | |
4525 | vaf.va = &args; | |
4526 | trace(dev, &vaf); | |
4527 | va_end(args); | |
4528 | } | |
4529 | EXPORT_SYMBOL_GPL(iscsi_dbg_trace); | |
4530 | ||
1da177e4 LT |
4531 | static __init int iscsi_transport_init(void) |
4532 | { | |
0896b752 | 4533 | int err; |
a31f2d17 PNA |
4534 | struct netlink_kernel_cfg cfg = { |
4535 | .groups = 1, | |
4536 | .input = iscsi_if_rx, | |
4537 | }; | |
09492605 | 4538 | printk(KERN_INFO "Loading iSCSI transport class v%s.\n", |
f4246b33 MC |
4539 | ISCSI_TRANSPORT_VERSION); |
4540 | ||
41be1444 MC |
4541 | atomic_set(&iscsi_session_nr, 0); |
4542 | ||
0896b752 | 4543 | err = class_register(&iscsi_transport_class); |
1da177e4 LT |
4544 | if (err) |
4545 | return err; | |
0896b752 | 4546 | |
d82ff9be | 4547 | err = class_register(&iscsi_endpoint_class); |
0896b752 AA |
4548 | if (err) |
4549 | goto unregister_transport_class; | |
4550 | ||
8d07913d | 4551 | err = class_register(&iscsi_iface_class); |
d82ff9be MC |
4552 | if (err) |
4553 | goto unregister_endpoint_class; | |
4554 | ||
8d07913d MC |
4555 | err = transport_class_register(&iscsi_host_class); |
4556 | if (err) | |
4557 | goto unregister_iface_class; | |
4558 | ||
30a6c652 MC |
4559 | err = transport_class_register(&iscsi_connection_class); |
4560 | if (err) | |
4561 | goto unregister_host_class; | |
4562 | ||
0896b752 AA |
4563 | err = transport_class_register(&iscsi_session_class); |
4564 | if (err) | |
4565 | goto unregister_conn_class; | |
4566 | ||
c6a4bb2e AC |
4567 | err = bus_register(&iscsi_flashnode_bus); |
4568 | if (err) | |
4569 | goto unregister_session_class; | |
4570 | ||
9f00d977 | 4571 | nls = netlink_kernel_create(&init_net, NETLINK_ISCSI, &cfg); |
0896b752 AA |
4572 | if (!nls) { |
4573 | err = -ENOBUFS; | |
c6a4bb2e | 4574 | goto unregister_flashnode_bus; |
0896b752 AA |
4575 | } |
4576 | ||
d8bf541e | 4577 | iscsi_eh_timer_workq = create_singlethread_workqueue("iscsi_eh"); |
bcab2ccd WY |
4578 | if (!iscsi_eh_timer_workq) { |
4579 | err = -ENOMEM; | |
d8bf541e | 4580 | goto release_nls; |
bcab2ccd | 4581 | } |
d8bf541e | 4582 | |
43a145a3 | 4583 | return 0; |
0896b752 | 4584 | |
d8bf541e | 4585 | release_nls: |
b7c6ba6e | 4586 | netlink_kernel_release(nls); |
c6a4bb2e AC |
4587 | unregister_flashnode_bus: |
4588 | bus_unregister(&iscsi_flashnode_bus); | |
0896b752 AA |
4589 | unregister_session_class: |
4590 | transport_class_unregister(&iscsi_session_class); | |
4591 | unregister_conn_class: | |
4592 | transport_class_unregister(&iscsi_connection_class); | |
30a6c652 MC |
4593 | unregister_host_class: |
4594 | transport_class_unregister(&iscsi_host_class); | |
8d07913d MC |
4595 | unregister_iface_class: |
4596 | class_unregister(&iscsi_iface_class); | |
d82ff9be MC |
4597 | unregister_endpoint_class: |
4598 | class_unregister(&iscsi_endpoint_class); | |
0896b752 AA |
4599 | unregister_transport_class: |
4600 | class_unregister(&iscsi_transport_class); | |
4601 | return err; | |
1da177e4 LT |
4602 | } |
4603 | ||
4604 | static void __exit iscsi_transport_exit(void) | |
4605 | { | |
d8bf541e | 4606 | destroy_workqueue(iscsi_eh_timer_workq); |
b7c6ba6e | 4607 | netlink_kernel_release(nls); |
c6a4bb2e | 4608 | bus_unregister(&iscsi_flashnode_bus); |
0896b752 AA |
4609 | transport_class_unregister(&iscsi_connection_class); |
4610 | transport_class_unregister(&iscsi_session_class); | |
30a6c652 | 4611 | transport_class_unregister(&iscsi_host_class); |
d82ff9be | 4612 | class_unregister(&iscsi_endpoint_class); |
8d07913d | 4613 | class_unregister(&iscsi_iface_class); |
0896b752 | 4614 | class_unregister(&iscsi_transport_class); |
1da177e4 LT |
4615 | } |
4616 | ||
4617 | module_init(iscsi_transport_init); | |
4618 | module_exit(iscsi_transport_exit); | |
4619 | ||
0896b752 AA |
4620 | MODULE_AUTHOR("Mike Christie <michaelc@cs.wisc.edu>, " |
4621 | "Dmitry Yusupov <dmitry_yus@yahoo.com>, " | |
4622 | "Alex Aizman <itn780@yahoo.com>"); | |
4623 | MODULE_DESCRIPTION("iSCSI Transport Interface"); | |
1da177e4 | 4624 | MODULE_LICENSE("GPL"); |
f4246b33 | 4625 | MODULE_VERSION(ISCSI_TRANSPORT_VERSION); |
058548ae | 4626 | MODULE_ALIAS_NET_PF_PROTO(PF_NETLINK, NETLINK_ISCSI); |