Commit | Line | Data |
---|---|---|
24073b47 CS |
1 | /* |
2 | * zfcp device driver | |
3 | * | |
4 | * Fibre Channel related functions for the zfcp device driver. | |
5 | * | |
615f59e0 | 6 | * Copyright IBM Corporation 2008, 2010 |
24073b47 CS |
7 | */ |
8 | ||
ecf39d42 CS |
9 | #define KMSG_COMPONENT "zfcp" |
10 | #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt | |
11 | ||
9d05ce2c | 12 | #include <linux/types.h> |
5a0e3ad6 | 13 | #include <linux/slab.h> |
9d05ce2c CS |
14 | #include <scsi/fc/fc_els.h> |
15 | #include <scsi/libfc.h> | |
24073b47 | 16 | #include "zfcp_ext.h" |
9d05ce2c | 17 | #include "zfcp_fc.h" |
24073b47 | 18 | |
9d05ce2c CS |
19 | static u32 zfcp_fc_rscn_range_mask[] = { |
20 | [ELS_ADDR_FMT_PORT] = 0xFFFFFF, | |
21 | [ELS_ADDR_FMT_AREA] = 0xFFFF00, | |
22 | [ELS_ADDR_FMT_DOM] = 0xFF0000, | |
23 | [ELS_ADDR_FMT_FAB] = 0x000000, | |
e0d7fcb5 CS |
24 | }; |
25 | ||
2d1e547f SS |
26 | /** |
27 | * zfcp_fc_post_event - post event to userspace via fc_transport | |
28 | * @work: work struct with enqueued events | |
29 | */ | |
30 | void zfcp_fc_post_event(struct work_struct *work) | |
31 | { | |
32 | struct zfcp_fc_event *event = NULL, *tmp = NULL; | |
33 | LIST_HEAD(tmp_lh); | |
34 | struct zfcp_fc_events *events = container_of(work, | |
35 | struct zfcp_fc_events, work); | |
36 | struct zfcp_adapter *adapter = container_of(events, struct zfcp_adapter, | |
37 | events); | |
38 | ||
39 | spin_lock_bh(&events->list_lock); | |
40 | list_splice_init(&events->list, &tmp_lh); | |
41 | spin_unlock_bh(&events->list_lock); | |
42 | ||
43 | list_for_each_entry_safe(event, tmp, &tmp_lh, list) { | |
44 | fc_host_post_event(adapter->scsi_host, fc_get_event_number(), | |
45 | event->code, event->data); | |
46 | list_del(&event->list); | |
47 | kfree(event); | |
48 | } | |
49 | ||
50 | } | |
51 | ||
52 | /** | |
53 | * zfcp_fc_enqueue_event - safely enqueue FC HBA API event from irq context | |
54 | * @adapter: The adapter where to enqueue the event | |
55 | * @event_code: The event code (as defined in fc_host_event_code in | |
56 | * scsi_transport_fc.h) | |
57 | * @event_data: The event data (e.g. n_port page in case of els) | |
58 | */ | |
59 | void zfcp_fc_enqueue_event(struct zfcp_adapter *adapter, | |
60 | enum fc_host_event_code event_code, u32 event_data) | |
61 | { | |
62 | struct zfcp_fc_event *event; | |
63 | ||
64 | event = kmalloc(sizeof(struct zfcp_fc_event), GFP_ATOMIC); | |
65 | if (!event) | |
66 | return; | |
67 | ||
68 | event->code = event_code; | |
69 | event->data = event_data; | |
70 | ||
71 | spin_lock(&adapter->events.list_lock); | |
72 | list_add_tail(&event->list, &adapter->events.list); | |
73 | spin_unlock(&adapter->events.list_lock); | |
74 | ||
75 | queue_work(adapter->work_queue, &adapter->events.work); | |
76 | } | |
77 | ||
bd0072ec | 78 | static int zfcp_fc_wka_port_get(struct zfcp_fc_wka_port *wka_port) |
5ab944f9 SS |
79 | { |
80 | if (mutex_lock_interruptible(&wka_port->mutex)) | |
81 | return -ERESTARTSYS; | |
82 | ||
bd0072ec CS |
83 | if (wka_port->status == ZFCP_FC_WKA_PORT_OFFLINE || |
84 | wka_port->status == ZFCP_FC_WKA_PORT_CLOSING) { | |
85 | wka_port->status = ZFCP_FC_WKA_PORT_OPENING; | |
5ab944f9 | 86 | if (zfcp_fsf_open_wka_port(wka_port)) |
bd0072ec | 87 | wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; |
5ab944f9 SS |
88 | } |
89 | ||
90 | mutex_unlock(&wka_port->mutex); | |
91 | ||
27f492cc | 92 | wait_event(wka_port->completion_wq, |
bd0072ec CS |
93 | wka_port->status == ZFCP_FC_WKA_PORT_ONLINE || |
94 | wka_port->status == ZFCP_FC_WKA_PORT_OFFLINE); | |
5ab944f9 | 95 | |
bd0072ec | 96 | if (wka_port->status == ZFCP_FC_WKA_PORT_ONLINE) { |
5ab944f9 SS |
97 | atomic_inc(&wka_port->refcount); |
98 | return 0; | |
99 | } | |
100 | return -EIO; | |
101 | } | |
102 | ||
6f53a2d2 | 103 | static void zfcp_fc_wka_port_offline(struct work_struct *work) |
5ab944f9 | 104 | { |
bf6aede7 | 105 | struct delayed_work *dw = to_delayed_work(work); |
bd0072ec CS |
106 | struct zfcp_fc_wka_port *wka_port = |
107 | container_of(dw, struct zfcp_fc_wka_port, work); | |
5ab944f9 | 108 | |
5ab944f9 SS |
109 | mutex_lock(&wka_port->mutex); |
110 | if ((atomic_read(&wka_port->refcount) != 0) || | |
bd0072ec | 111 | (wka_port->status != ZFCP_FC_WKA_PORT_ONLINE)) |
5ab944f9 SS |
112 | goto out; |
113 | ||
bd0072ec | 114 | wka_port->status = ZFCP_FC_WKA_PORT_CLOSING; |
5ab944f9 | 115 | if (zfcp_fsf_close_wka_port(wka_port)) { |
bd0072ec | 116 | wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; |
5ab944f9 SS |
117 | wake_up(&wka_port->completion_wq); |
118 | } | |
119 | out: | |
120 | mutex_unlock(&wka_port->mutex); | |
121 | } | |
122 | ||
bd0072ec | 123 | static void zfcp_fc_wka_port_put(struct zfcp_fc_wka_port *wka_port) |
5ab944f9 SS |
124 | { |
125 | if (atomic_dec_return(&wka_port->refcount) != 0) | |
126 | return; | |
19af5cdb | 127 | /* wait 10 milliseconds, other reqs might pop in */ |
5ab944f9 SS |
128 | schedule_delayed_work(&wka_port->work, HZ / 100); |
129 | } | |
130 | ||
bd0072ec | 131 | static void zfcp_fc_wka_port_init(struct zfcp_fc_wka_port *wka_port, u32 d_id, |
9d544f2b | 132 | struct zfcp_adapter *adapter) |
5ab944f9 | 133 | { |
5ab944f9 SS |
134 | init_waitqueue_head(&wka_port->completion_wq); |
135 | ||
136 | wka_port->adapter = adapter; | |
9d544f2b | 137 | wka_port->d_id = d_id; |
5ab944f9 | 138 | |
bd0072ec | 139 | wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; |
5ab944f9 SS |
140 | atomic_set(&wka_port->refcount, 0); |
141 | mutex_init(&wka_port->mutex); | |
6f53a2d2 | 142 | INIT_DELAYED_WORK(&wka_port->work, zfcp_fc_wka_port_offline); |
5ab944f9 SS |
143 | } |
144 | ||
bd0072ec | 145 | static void zfcp_fc_wka_port_force_offline(struct zfcp_fc_wka_port *wka) |
828bc121 SS |
146 | { |
147 | cancel_delayed_work_sync(&wka->work); | |
148 | mutex_lock(&wka->mutex); | |
bd0072ec | 149 | wka->status = ZFCP_FC_WKA_PORT_OFFLINE; |
828bc121 SS |
150 | mutex_unlock(&wka->mutex); |
151 | } | |
152 | ||
bd0072ec | 153 | void zfcp_fc_wka_ports_force_offline(struct zfcp_fc_wka_ports *gs) |
55c770fa | 154 | { |
f3450c7b SS |
155 | if (!gs) |
156 | return; | |
55c770fa CS |
157 | zfcp_fc_wka_port_force_offline(&gs->ms); |
158 | zfcp_fc_wka_port_force_offline(&gs->ts); | |
159 | zfcp_fc_wka_port_force_offline(&gs->ds); | |
160 | zfcp_fc_wka_port_force_offline(&gs->as); | |
55c770fa CS |
161 | } |
162 | ||
24073b47 | 163 | static void _zfcp_fc_incoming_rscn(struct zfcp_fsf_req *fsf_req, u32 range, |
9d05ce2c | 164 | struct fc_els_rscn_page *page) |
24073b47 CS |
165 | { |
166 | unsigned long flags; | |
ecf0c772 | 167 | struct zfcp_adapter *adapter = fsf_req->adapter; |
24073b47 CS |
168 | struct zfcp_port *port; |
169 | ||
ecf0c772 SS |
170 | read_lock_irqsave(&adapter->port_list_lock, flags); |
171 | list_for_each_entry(port, &adapter->port_list, list) { | |
9d05ce2c | 172 | if ((port->d_id & range) == (ntoh24(page->rscn_fid) & range)) |
6f53a2d2 | 173 | zfcp_fc_test_link(port); |
ea460a81 SS |
174 | if (!port->d_id) |
175 | zfcp_erp_port_reopen(port, | |
176 | ZFCP_STATUS_COMMON_ERP_FAILED, | |
177 | "fcrscn1", NULL); | |
178 | } | |
ecf0c772 | 179 | read_unlock_irqrestore(&adapter->port_list_lock, flags); |
24073b47 CS |
180 | } |
181 | ||
182 | static void zfcp_fc_incoming_rscn(struct zfcp_fsf_req *fsf_req) | |
183 | { | |
184 | struct fsf_status_read_buffer *status_buffer = (void *)fsf_req->data; | |
9d05ce2c CS |
185 | struct fc_els_rscn *head; |
186 | struct fc_els_rscn_page *page; | |
24073b47 CS |
187 | u16 i; |
188 | u16 no_entries; | |
9d05ce2c | 189 | unsigned int afmt; |
24073b47 | 190 | |
9d05ce2c CS |
191 | head = (struct fc_els_rscn *) status_buffer->payload.data; |
192 | page = (struct fc_els_rscn_page *) head; | |
24073b47 CS |
193 | |
194 | /* see FC-FS */ | |
9d05ce2c | 195 | no_entries = head->rscn_plen / sizeof(struct fc_els_rscn_page); |
24073b47 CS |
196 | |
197 | for (i = 1; i < no_entries; i++) { | |
198 | /* skip head and start with 1st element */ | |
9d05ce2c CS |
199 | page++; |
200 | afmt = page->rscn_page_flags & ELS_RSCN_ADDR_FMT_MASK; | |
201 | _zfcp_fc_incoming_rscn(fsf_req, zfcp_fc_rscn_range_mask[afmt], | |
202 | page); | |
2d1e547f SS |
203 | zfcp_fc_enqueue_event(fsf_req->adapter, FCH_EVT_RSCN, |
204 | *(u32 *)page); | |
24073b47 | 205 | } |
9eae07ef | 206 | queue_work(fsf_req->adapter->work_queue, &fsf_req->adapter->scan_work); |
24073b47 CS |
207 | } |
208 | ||
7ba58c9c | 209 | static void zfcp_fc_incoming_wwpn(struct zfcp_fsf_req *req, u64 wwpn) |
24073b47 | 210 | { |
ecf0c772 | 211 | unsigned long flags; |
24073b47 CS |
212 | struct zfcp_adapter *adapter = req->adapter; |
213 | struct zfcp_port *port; | |
24073b47 | 214 | |
ecf0c772 SS |
215 | read_lock_irqsave(&adapter->port_list_lock, flags); |
216 | list_for_each_entry(port, &adapter->port_list, list) | |
217 | if (port->wwpn == wwpn) { | |
218 | zfcp_erp_port_forced_reopen(port, 0, "fciwwp1", req); | |
24073b47 | 219 | break; |
ecf0c772 SS |
220 | } |
221 | read_unlock_irqrestore(&adapter->port_list_lock, flags); | |
24073b47 CS |
222 | } |
223 | ||
224 | static void zfcp_fc_incoming_plogi(struct zfcp_fsf_req *req) | |
225 | { | |
9d05ce2c CS |
226 | struct fsf_status_read_buffer *status_buffer; |
227 | struct fc_els_flogi *plogi; | |
24073b47 | 228 | |
9d05ce2c CS |
229 | status_buffer = (struct fsf_status_read_buffer *) req->data; |
230 | plogi = (struct fc_els_flogi *) status_buffer->payload.data; | |
231 | zfcp_fc_incoming_wwpn(req, plogi->fl_wwpn); | |
24073b47 CS |
232 | } |
233 | ||
234 | static void zfcp_fc_incoming_logo(struct zfcp_fsf_req *req) | |
235 | { | |
236 | struct fsf_status_read_buffer *status_buffer = | |
237 | (struct fsf_status_read_buffer *)req->data; | |
9d05ce2c CS |
238 | struct fc_els_logo *logo = |
239 | (struct fc_els_logo *) status_buffer->payload.data; | |
24073b47 | 240 | |
9d05ce2c | 241 | zfcp_fc_incoming_wwpn(req, logo->fl_n_port_wwn); |
24073b47 CS |
242 | } |
243 | ||
244 | /** | |
245 | * zfcp_fc_incoming_els - handle incoming ELS | |
246 | * @fsf_req - request which contains incoming ELS | |
247 | */ | |
248 | void zfcp_fc_incoming_els(struct zfcp_fsf_req *fsf_req) | |
249 | { | |
250 | struct fsf_status_read_buffer *status_buffer = | |
251 | (struct fsf_status_read_buffer *) fsf_req->data; | |
c41f8cbd | 252 | unsigned int els_type = status_buffer->payload.data[0]; |
24073b47 | 253 | |
5771710b | 254 | zfcp_dbf_san_incoming_els(fsf_req); |
9d05ce2c | 255 | if (els_type == ELS_PLOGI) |
24073b47 | 256 | zfcp_fc_incoming_plogi(fsf_req); |
9d05ce2c | 257 | else if (els_type == ELS_LOGO) |
24073b47 | 258 | zfcp_fc_incoming_logo(fsf_req); |
9d05ce2c | 259 | else if (els_type == ELS_RSCN) |
24073b47 CS |
260 | zfcp_fc_incoming_rscn(fsf_req); |
261 | } | |
262 | ||
7c7dc196 | 263 | static void zfcp_fc_ns_gid_pn_eval(void *data) |
24073b47 | 264 | { |
7c7dc196 CS |
265 | struct zfcp_fc_gid_pn *gid_pn = data; |
266 | struct zfcp_fsf_ct_els *ct = &gid_pn->ct; | |
dbf5dfe9 CS |
267 | struct zfcp_fc_gid_pn_req *gid_pn_req = sg_virt(ct->req); |
268 | struct zfcp_fc_gid_pn_resp *gid_pn_resp = sg_virt(ct->resp); | |
24073b47 CS |
269 | struct zfcp_port *port = gid_pn->port; |
270 | ||
271 | if (ct->status) | |
5ab944f9 | 272 | return; |
dbf5dfe9 | 273 | if (gid_pn_resp->ct_hdr.ct_cmd != FC_FS_ACC) |
5ab944f9 | 274 | return; |
a5b11dda | 275 | |
24073b47 | 276 | /* paranoia */ |
dbf5dfe9 | 277 | if (gid_pn_req->gid_pn.fn_wwpn != port->wwpn) |
5ab944f9 | 278 | return; |
24073b47 | 279 | /* looks like a valid d_id */ |
dbf5dfe9 | 280 | port->d_id = ntoh24(gid_pn_resp->gid_pn.fp_fid); |
24073b47 CS |
281 | } |
282 | ||
7c7dc196 CS |
283 | static void zfcp_fc_complete(void *data) |
284 | { | |
285 | complete(data); | |
286 | } | |
287 | ||
799b76d0 | 288 | static int zfcp_fc_ns_gid_pn_request(struct zfcp_port *port, |
dbf5dfe9 | 289 | struct zfcp_fc_gid_pn *gid_pn) |
24073b47 | 290 | { |
799b76d0 | 291 | struct zfcp_adapter *adapter = port->adapter; |
7c7dc196 | 292 | DECLARE_COMPLETION_ONSTACK(completion); |
5ab944f9 | 293 | int ret; |
24073b47 CS |
294 | |
295 | /* setup parameters for send generic command */ | |
799b76d0 | 296 | gid_pn->port = port; |
7c7dc196 CS |
297 | gid_pn->ct.handler = zfcp_fc_complete; |
298 | gid_pn->ct.handler_data = &completion; | |
dbf5dfe9 CS |
299 | gid_pn->ct.req = &gid_pn->sg_req; |
300 | gid_pn->ct.resp = &gid_pn->sg_resp; | |
301 | sg_init_one(&gid_pn->sg_req, &gid_pn->gid_pn_req, | |
302 | sizeof(struct zfcp_fc_gid_pn_req)); | |
303 | sg_init_one(&gid_pn->sg_resp, &gid_pn->gid_pn_resp, | |
304 | sizeof(struct zfcp_fc_gid_pn_resp)); | |
24073b47 CS |
305 | |
306 | /* setup nameserver request */ | |
dbf5dfe9 CS |
307 | gid_pn->gid_pn_req.ct_hdr.ct_rev = FC_CT_REV; |
308 | gid_pn->gid_pn_req.ct_hdr.ct_fs_type = FC_FST_DIR; | |
309 | gid_pn->gid_pn_req.ct_hdr.ct_fs_subtype = FC_NS_SUBTYPE; | |
310 | gid_pn->gid_pn_req.ct_hdr.ct_options = 0; | |
311 | gid_pn->gid_pn_req.ct_hdr.ct_cmd = FC_NS_GID_PN; | |
312 | gid_pn->gid_pn_req.ct_hdr.ct_mr_size = ZFCP_FC_CT_SIZE_PAGE / 4; | |
313 | gid_pn->gid_pn_req.gid_pn.fn_wwpn = port->wwpn; | |
24073b47 | 314 | |
7c7dc196 | 315 | ret = zfcp_fsf_send_ct(&adapter->gs->ds, &gid_pn->ct, |
51375ee8 SS |
316 | adapter->pool.gid_pn_req, |
317 | ZFCP_FC_CTELS_TMO); | |
7c7dc196 CS |
318 | if (!ret) { |
319 | wait_for_completion(&completion); | |
320 | zfcp_fc_ns_gid_pn_eval(gid_pn); | |
321 | } | |
5ab944f9 SS |
322 | return ret; |
323 | } | |
324 | ||
325 | /** | |
326 | * zfcp_fc_ns_gid_pn_request - initiate GID_PN nameserver request | |
799b76d0 | 327 | * @port: port where GID_PN request is needed |
5ab944f9 SS |
328 | * return: -ENOMEM on error, 0 otherwise |
329 | */ | |
799b76d0 | 330 | static int zfcp_fc_ns_gid_pn(struct zfcp_port *port) |
5ab944f9 SS |
331 | { |
332 | int ret; | |
dbf5dfe9 | 333 | struct zfcp_fc_gid_pn *gid_pn; |
799b76d0 | 334 | struct zfcp_adapter *adapter = port->adapter; |
5ab944f9 | 335 | |
dbf5dfe9 | 336 | gid_pn = mempool_alloc(adapter->pool.gid_pn, GFP_ATOMIC); |
5ab944f9 SS |
337 | if (!gid_pn) |
338 | return -ENOMEM; | |
339 | ||
340 | memset(gid_pn, 0, sizeof(*gid_pn)); | |
341 | ||
6f53a2d2 | 342 | ret = zfcp_fc_wka_port_get(&adapter->gs->ds); |
24073b47 | 343 | if (ret) |
5ab944f9 SS |
344 | goto out; |
345 | ||
799b76d0 | 346 | ret = zfcp_fc_ns_gid_pn_request(port, gid_pn); |
5ab944f9 | 347 | |
6f53a2d2 | 348 | zfcp_fc_wka_port_put(&adapter->gs->ds); |
5ab944f9 | 349 | out: |
dbf5dfe9 | 350 | mempool_free(gid_pn, adapter->pool.gid_pn); |
24073b47 CS |
351 | return ret; |
352 | } | |
353 | ||
799b76d0 CS |
354 | void zfcp_fc_port_did_lookup(struct work_struct *work) |
355 | { | |
356 | int ret; | |
357 | struct zfcp_port *port = container_of(work, struct zfcp_port, | |
358 | gid_pn_work); | |
359 | ||
360 | ret = zfcp_fc_ns_gid_pn(port); | |
361 | if (ret) { | |
362 | /* could not issue gid_pn for some reason */ | |
363 | zfcp_erp_adapter_reopen(port->adapter, 0, "fcgpn_1", NULL); | |
364 | goto out; | |
365 | } | |
366 | ||
367 | if (!port->d_id) { | |
edaed859 | 368 | zfcp_erp_set_port_status(port, ZFCP_STATUS_COMMON_ERP_FAILED); |
799b76d0 CS |
369 | goto out; |
370 | } | |
371 | ||
372 | zfcp_erp_port_reopen(port, 0, "fcgpn_3", NULL); | |
373 | out: | |
615f59e0 | 374 | put_device(&port->dev); |
799b76d0 CS |
375 | } |
376 | ||
934aeb58 CS |
377 | /** |
378 | * zfcp_fc_trigger_did_lookup - trigger the d_id lookup using a GID_PN request | |
379 | * @port: The zfcp_port to lookup the d_id for. | |
380 | */ | |
381 | void zfcp_fc_trigger_did_lookup(struct zfcp_port *port) | |
382 | { | |
615f59e0 | 383 | get_device(&port->dev); |
934aeb58 | 384 | if (!queue_work(port->adapter->work_queue, &port->gid_pn_work)) |
615f59e0 | 385 | put_device(&port->dev); |
934aeb58 CS |
386 | } |
387 | ||
24073b47 CS |
388 | /** |
389 | * zfcp_fc_plogi_evaluate - evaluate PLOGI playload | |
390 | * @port: zfcp_port structure | |
391 | * @plogi: plogi payload | |
392 | * | |
393 | * Evaluate PLOGI playload and copy important fields into zfcp_port structure | |
394 | */ | |
9d05ce2c | 395 | void zfcp_fc_plogi_evaluate(struct zfcp_port *port, struct fc_els_flogi *plogi) |
24073b47 | 396 | { |
9d05ce2c CS |
397 | if (plogi->fl_wwpn != port->wwpn) { |
398 | port->d_id = 0; | |
399 | dev_warn(&port->adapter->ccw_device->dev, | |
400 | "A port opened with WWPN 0x%016Lx returned data that " | |
401 | "identifies it as WWPN 0x%016Lx\n", | |
402 | (unsigned long long) port->wwpn, | |
403 | (unsigned long long) plogi->fl_wwpn); | |
404 | return; | |
405 | } | |
406 | ||
407 | port->wwnn = plogi->fl_wwnn; | |
408 | port->maxframe_size = plogi->fl_csp.sp_bb_data; | |
409 | ||
410 | if (plogi->fl_cssp[0].cp_class & FC_CPC_VALID) | |
24073b47 | 411 | port->supported_classes |= FC_COS_CLASS1; |
9d05ce2c | 412 | if (plogi->fl_cssp[1].cp_class & FC_CPC_VALID) |
24073b47 | 413 | port->supported_classes |= FC_COS_CLASS2; |
9d05ce2c | 414 | if (plogi->fl_cssp[2].cp_class & FC_CPC_VALID) |
24073b47 | 415 | port->supported_classes |= FC_COS_CLASS3; |
9d05ce2c | 416 | if (plogi->fl_cssp[3].cp_class & FC_CPC_VALID) |
24073b47 CS |
417 | port->supported_classes |= FC_COS_CLASS4; |
418 | } | |
419 | ||
7c7dc196 | 420 | static void zfcp_fc_adisc_handler(void *data) |
24073b47 | 421 | { |
7c7dc196 | 422 | struct zfcp_fc_els_adisc *adisc = data; |
24073b47 | 423 | struct zfcp_port *port = adisc->els.port; |
9d05ce2c | 424 | struct fc_els_adisc *adisc_resp = &adisc->adisc_resp; |
24073b47 | 425 | |
3968ce80 | 426 | if (adisc->els.status) { |
24073b47 | 427 | /* request rejected or timed out */ |
5b43e719 SS |
428 | zfcp_erp_port_forced_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED, |
429 | "fcadh_1", NULL); | |
24073b47 CS |
430 | goto out; |
431 | } | |
432 | ||
433 | if (!port->wwnn) | |
9d05ce2c | 434 | port->wwnn = adisc_resp->adisc_wwnn; |
24073b47 | 435 | |
9d05ce2c | 436 | if ((port->wwpn != adisc_resp->adisc_wwpn) || |
a2fa0aed | 437 | !(atomic_read(&port->status) & ZFCP_STATUS_COMMON_OPEN)) { |
24095490 SS |
438 | zfcp_erp_port_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED, |
439 | "fcadh_2", NULL); | |
a2fa0aed CS |
440 | goto out; |
441 | } | |
24073b47 | 442 | |
a2fa0aed CS |
443 | /* port is good, unblock rport without going through erp */ |
444 | zfcp_scsi_schedule_rport_register(port); | |
24073b47 | 445 | out: |
14e242ea | 446 | atomic_clear_mask(ZFCP_STATUS_PORT_LINK_TEST, &port->status); |
615f59e0 | 447 | put_device(&port->dev); |
ee744622 | 448 | kmem_cache_free(zfcp_data.adisc_cache, adisc); |
24073b47 CS |
449 | } |
450 | ||
451 | static int zfcp_fc_adisc(struct zfcp_port *port) | |
452 | { | |
9d05ce2c | 453 | struct zfcp_fc_els_adisc *adisc; |
24073b47 | 454 | struct zfcp_adapter *adapter = port->adapter; |
ee744622 | 455 | int ret; |
24073b47 | 456 | |
6e51f085 | 457 | adisc = kmem_cache_zalloc(zfcp_data.adisc_cache, GFP_ATOMIC); |
24073b47 CS |
458 | if (!adisc) |
459 | return -ENOMEM; | |
460 | ||
7c7dc196 | 461 | adisc->els.port = port; |
24073b47 CS |
462 | adisc->els.req = &adisc->req; |
463 | adisc->els.resp = &adisc->resp; | |
9d05ce2c CS |
464 | sg_init_one(adisc->els.req, &adisc->adisc_req, |
465 | sizeof(struct fc_els_adisc)); | |
466 | sg_init_one(adisc->els.resp, &adisc->adisc_resp, | |
467 | sizeof(struct fc_els_adisc)); | |
24073b47 | 468 | |
24073b47 | 469 | adisc->els.handler = zfcp_fc_adisc_handler; |
7c7dc196 | 470 | adisc->els.handler_data = adisc; |
24073b47 CS |
471 | |
472 | /* acc. to FC-FS, hard_nport_id in ADISC should not be set for ports | |
473 | without FC-AL-2 capability, so we don't set it */ | |
9d05ce2c CS |
474 | adisc->adisc_req.adisc_wwpn = fc_host_port_name(adapter->scsi_host); |
475 | adisc->adisc_req.adisc_wwnn = fc_host_node_name(adapter->scsi_host); | |
7c7dc196 | 476 | adisc->adisc_req.adisc_cmd = ELS_ADISC; |
9d05ce2c CS |
477 | hton24(adisc->adisc_req.adisc_port_id, |
478 | fc_host_port_id(adapter->scsi_host)); | |
24073b47 | 479 | |
51375ee8 SS |
480 | ret = zfcp_fsf_send_els(adapter, port->d_id, &adisc->els, |
481 | ZFCP_FC_CTELS_TMO); | |
ee744622 CS |
482 | if (ret) |
483 | kmem_cache_free(zfcp_data.adisc_cache, adisc); | |
484 | ||
485 | return ret; | |
24073b47 CS |
486 | } |
487 | ||
8fdf30d5 | 488 | void zfcp_fc_link_test_work(struct work_struct *work) |
24073b47 | 489 | { |
8fdf30d5 CS |
490 | struct zfcp_port *port = |
491 | container_of(work, struct zfcp_port, test_link_work); | |
24073b47 CS |
492 | int retval; |
493 | ||
615f59e0 | 494 | get_device(&port->dev); |
a2fa0aed CS |
495 | port->rport_task = RPORT_DEL; |
496 | zfcp_scsi_rport_work(&port->rport_work); | |
497 | ||
14e242ea CS |
498 | /* only issue one test command at one time per port */ |
499 | if (atomic_read(&port->status) & ZFCP_STATUS_PORT_LINK_TEST) | |
500 | goto out; | |
501 | ||
502 | atomic_set_mask(ZFCP_STATUS_PORT_LINK_TEST, &port->status); | |
503 | ||
24073b47 | 504 | retval = zfcp_fc_adisc(port); |
9528539c | 505 | if (retval == 0) |
24073b47 CS |
506 | return; |
507 | ||
508 | /* send of ADISC was not possible */ | |
14e242ea | 509 | atomic_clear_mask(ZFCP_STATUS_PORT_LINK_TEST, &port->status); |
a2fa0aed CS |
510 | zfcp_erp_port_forced_reopen(port, 0, "fcltwk1", NULL); |
511 | ||
14e242ea | 512 | out: |
615f59e0 | 513 | put_device(&port->dev); |
24073b47 | 514 | } |
cc8c2829 | 515 | |
8fdf30d5 | 516 | /** |
6f53a2d2 | 517 | * zfcp_fc_test_link - lightweight link test procedure |
8fdf30d5 CS |
518 | * @port: port to be tested |
519 | * | |
520 | * Test status of a link to a remote port using the ELS command ADISC. | |
521 | * If there is a problem with the remote port, error recovery steps | |
522 | * will be triggered. | |
523 | */ | |
6f53a2d2 | 524 | void zfcp_fc_test_link(struct zfcp_port *port) |
8fdf30d5 | 525 | { |
615f59e0 | 526 | get_device(&port->dev); |
4544683a | 527 | if (!queue_work(port->adapter->work_queue, &port->test_link_work)) |
615f59e0 | 528 | put_device(&port->dev); |
8fdf30d5 CS |
529 | } |
530 | ||
dbf5dfe9 | 531 | static void zfcp_free_sg_env(struct zfcp_fc_gpn_ft *gpn_ft, int buf_num) |
cc8c2829 SS |
532 | { |
533 | struct scatterlist *sg = &gpn_ft->sg_req; | |
534 | ||
a4623c46 | 535 | kmem_cache_free(zfcp_data.gpn_ft_cache, sg_virt(sg)); |
39eb7e9a | 536 | zfcp_sg_free_table(gpn_ft->sg_resp, buf_num); |
cc8c2829 SS |
537 | |
538 | kfree(gpn_ft); | |
539 | } | |
540 | ||
dbf5dfe9 | 541 | static struct zfcp_fc_gpn_ft *zfcp_alloc_sg_env(int buf_num) |
cc8c2829 | 542 | { |
dbf5dfe9 CS |
543 | struct zfcp_fc_gpn_ft *gpn_ft; |
544 | struct zfcp_fc_gpn_ft_req *req; | |
cc8c2829 SS |
545 | |
546 | gpn_ft = kzalloc(sizeof(*gpn_ft), GFP_KERNEL); | |
547 | if (!gpn_ft) | |
548 | return NULL; | |
549 | ||
6e51f085 | 550 | req = kmem_cache_zalloc(zfcp_data.gpn_ft_cache, GFP_KERNEL); |
cc8c2829 SS |
551 | if (!req) { |
552 | kfree(gpn_ft); | |
553 | gpn_ft = NULL; | |
554 | goto out; | |
555 | } | |
556 | sg_init_one(&gpn_ft->sg_req, req, sizeof(*req)); | |
557 | ||
39eb7e9a CS |
558 | if (zfcp_sg_setup_table(gpn_ft->sg_resp, buf_num)) { |
559 | zfcp_free_sg_env(gpn_ft, buf_num); | |
cc8c2829 SS |
560 | gpn_ft = NULL; |
561 | } | |
562 | out: | |
563 | return gpn_ft; | |
564 | } | |
565 | ||
566 | ||
dbf5dfe9 | 567 | static int zfcp_fc_send_gpn_ft(struct zfcp_fc_gpn_ft *gpn_ft, |
6f53a2d2 | 568 | struct zfcp_adapter *adapter, int max_bytes) |
cc8c2829 | 569 | { |
7c7dc196 | 570 | struct zfcp_fsf_ct_els *ct = &gpn_ft->ct; |
dbf5dfe9 | 571 | struct zfcp_fc_gpn_ft_req *req = sg_virt(&gpn_ft->sg_req); |
7c7dc196 | 572 | DECLARE_COMPLETION_ONSTACK(completion); |
cc8c2829 SS |
573 | int ret; |
574 | ||
575 | /* prepare CT IU for GPN_FT */ | |
dbf5dfe9 CS |
576 | req->ct_hdr.ct_rev = FC_CT_REV; |
577 | req->ct_hdr.ct_fs_type = FC_FST_DIR; | |
578 | req->ct_hdr.ct_fs_subtype = FC_NS_SUBTYPE; | |
579 | req->ct_hdr.ct_options = 0; | |
580 | req->ct_hdr.ct_cmd = FC_NS_GPN_FT; | |
581 | req->ct_hdr.ct_mr_size = max_bytes / 4; | |
582 | req->gpn_ft.fn_domain_id_scope = 0; | |
583 | req->gpn_ft.fn_area_id_scope = 0; | |
584 | req->gpn_ft.fn_fc4_type = FC_TYPE_FCP; | |
cc8c2829 SS |
585 | |
586 | /* prepare zfcp_send_ct */ | |
7c7dc196 CS |
587 | ct->handler = zfcp_fc_complete; |
588 | ct->handler_data = &completion; | |
cc8c2829 SS |
589 | ct->req = &gpn_ft->sg_req; |
590 | ct->resp = gpn_ft->sg_resp; | |
cc8c2829 | 591 | |
51375ee8 SS |
592 | ret = zfcp_fsf_send_ct(&adapter->gs->ds, ct, NULL, |
593 | ZFCP_FC_CTELS_TMO); | |
cc8c2829 | 594 | if (!ret) |
7c7dc196 | 595 | wait_for_completion(&completion); |
cc8c2829 SS |
596 | return ret; |
597 | } | |
598 | ||
f3450c7b | 599 | static void zfcp_fc_validate_port(struct zfcp_port *port, struct list_head *lh) |
cc8c2829 | 600 | { |
6ab35c07 MP |
601 | if (!(atomic_read(&port->status) & ZFCP_STATUS_COMMON_NOESC)) |
602 | return; | |
603 | ||
cc8c2829 SS |
604 | atomic_clear_mask(ZFCP_STATUS_COMMON_NOESC, &port->status); |
605 | ||
0406289e | 606 | if ((port->supported_classes != 0) || |
f3450c7b | 607 | !list_empty(&port->unit_list)) |
cc8c2829 | 608 | return; |
f3450c7b | 609 | |
f3450c7b | 610 | list_move_tail(&port->list, lh); |
cc8c2829 SS |
611 | } |
612 | ||
7c7dc196 CS |
613 | static int zfcp_fc_eval_gpn_ft(struct zfcp_fc_gpn_ft *gpn_ft, |
614 | struct zfcp_adapter *adapter, int max_entries) | |
cc8c2829 | 615 | { |
7c7dc196 | 616 | struct zfcp_fsf_ct_els *ct = &gpn_ft->ct; |
cc8c2829 | 617 | struct scatterlist *sg = gpn_ft->sg_resp; |
dbf5dfe9 CS |
618 | struct fc_ct_hdr *hdr = sg_virt(sg); |
619 | struct fc_gpn_ft_resp *acc = sg_virt(sg); | |
cc8c2829 | 620 | struct zfcp_port *port, *tmp; |
ecf0c772 | 621 | unsigned long flags; |
f3450c7b | 622 | LIST_HEAD(remove_lh); |
cc8c2829 | 623 | u32 d_id; |
47f7bba5 | 624 | int ret = 0, x, last = 0; |
cc8c2829 SS |
625 | |
626 | if (ct->status) | |
627 | return -EIO; | |
628 | ||
dbf5dfe9 CS |
629 | if (hdr->ct_cmd != FC_FS_ACC) { |
630 | if (hdr->ct_reason == FC_BA_RJT_UNABLE) | |
cc8c2829 SS |
631 | return -EAGAIN; /* might be a temporary condition */ |
632 | return -EIO; | |
633 | } | |
634 | ||
dbf5dfe9 | 635 | if (hdr->ct_mr_size) { |
39eb7e9a CS |
636 | dev_warn(&adapter->ccw_device->dev, |
637 | "The name server reported %d words residual data\n", | |
dbf5dfe9 | 638 | hdr->ct_mr_size); |
cc8c2829 | 639 | return -E2BIG; |
39eb7e9a | 640 | } |
cc8c2829 | 641 | |
cc8c2829 | 642 | /* first entry is the header */ |
39eb7e9a | 643 | for (x = 1; x < max_entries && !last; x++) { |
dbf5dfe9 | 644 | if (x % (ZFCP_FC_GPN_FT_ENT_PAGE + 1)) |
cc8c2829 SS |
645 | acc++; |
646 | else | |
647 | acc = sg_virt(++sg); | |
648 | ||
dbf5dfe9 CS |
649 | last = acc->fp_flags & FC_NS_FID_LAST; |
650 | d_id = ntoh24(acc->fp_fid); | |
cc8c2829 | 651 | |
5ab944f9 | 652 | /* don't attach ports with a well known address */ |
dbf5dfe9 | 653 | if (d_id >= FC_FID_WELL_KNOWN_BASE) |
5ab944f9 | 654 | continue; |
cc8c2829 | 655 | /* skip the adapter's port and known remote ports */ |
dbf5dfe9 | 656 | if (acc->fp_wwpn == fc_host_port_name(adapter->scsi_host)) |
cc8c2829 SS |
657 | continue; |
658 | ||
dbf5dfe9 | 659 | port = zfcp_port_enqueue(adapter, acc->fp_wwpn, |
cc8c2829 | 660 | ZFCP_STATUS_COMMON_NOESC, d_id); |
ecf0c772 | 661 | if (!IS_ERR(port)) |
5ffd51a5 | 662 | zfcp_erp_port_reopen(port, 0, "fcegpf1", NULL); |
ecf0c772 SS |
663 | else if (PTR_ERR(port) != -EEXIST) |
664 | ret = PTR_ERR(port); | |
cc8c2829 SS |
665 | } |
666 | ||
667 | zfcp_erp_wait(adapter); | |
ecf0c772 SS |
668 | write_lock_irqsave(&adapter->port_list_lock, flags); |
669 | list_for_each_entry_safe(port, tmp, &adapter->port_list, list) | |
f3450c7b | 670 | zfcp_fc_validate_port(port, &remove_lh); |
ecf0c772 | 671 | write_unlock_irqrestore(&adapter->port_list_lock, flags); |
f3450c7b SS |
672 | |
673 | list_for_each_entry_safe(port, tmp, &remove_lh, list) { | |
674 | zfcp_erp_port_shutdown(port, 0, "fcegpf2", NULL); | |
615f59e0 | 675 | zfcp_device_unregister(&port->dev, &zfcp_sysfs_port_attrs); |
f3450c7b SS |
676 | } |
677 | ||
cc8c2829 SS |
678 | return ret; |
679 | } | |
680 | ||
681 | /** | |
6f53a2d2 | 682 | * zfcp_fc_scan_ports - scan remote ports and attach new ports |
9eae07ef | 683 | * @work: reference to scheduled work |
cc8c2829 | 684 | */ |
9eae07ef | 685 | void zfcp_fc_scan_ports(struct work_struct *work) |
cc8c2829 | 686 | { |
9eae07ef SS |
687 | struct zfcp_adapter *adapter = container_of(work, struct zfcp_adapter, |
688 | scan_work); | |
cc8c2829 | 689 | int ret, i; |
dbf5dfe9 | 690 | struct zfcp_fc_gpn_ft *gpn_ft; |
39eb7e9a CS |
691 | int chain, max_entries, buf_num, max_bytes; |
692 | ||
693 | chain = adapter->adapter_features & FSF_FEATURE_ELS_CT_CHAINED_SBALS; | |
dbf5dfe9 CS |
694 | buf_num = chain ? ZFCP_FC_GPN_FT_NUM_BUFS : 1; |
695 | max_entries = chain ? ZFCP_FC_GPN_FT_MAX_ENT : ZFCP_FC_GPN_FT_ENT_PAGE; | |
696 | max_bytes = chain ? ZFCP_FC_GPN_FT_MAX_SIZE : ZFCP_FC_CT_SIZE_PAGE; | |
cc8c2829 | 697 | |
306b6edc SS |
698 | if (fc_host_port_type(adapter->scsi_host) != FC_PORTTYPE_NPORT && |
699 | fc_host_port_type(adapter->scsi_host) != FC_PORTTYPE_NPIV) | |
9eae07ef | 700 | return; |
cc8c2829 | 701 | |
9eae07ef SS |
702 | if (zfcp_fc_wka_port_get(&adapter->gs->ds)) |
703 | return; | |
cc8c2829 | 704 | |
39eb7e9a | 705 | gpn_ft = zfcp_alloc_sg_env(buf_num); |
9eae07ef | 706 | if (!gpn_ft) |
5ab944f9 | 707 | goto out; |
cc8c2829 SS |
708 | |
709 | for (i = 0; i < 3; i++) { | |
6f53a2d2 | 710 | ret = zfcp_fc_send_gpn_ft(gpn_ft, adapter, max_bytes); |
cc8c2829 | 711 | if (!ret) { |
7c7dc196 | 712 | ret = zfcp_fc_eval_gpn_ft(gpn_ft, adapter, max_entries); |
cc8c2829 SS |
713 | if (ret == -EAGAIN) |
714 | ssleep(1); | |
715 | else | |
716 | break; | |
717 | } | |
718 | } | |
39eb7e9a | 719 | zfcp_free_sg_env(gpn_ft, buf_num); |
5ab944f9 | 720 | out: |
6f53a2d2 | 721 | zfcp_fc_wka_port_put(&adapter->gs->ds); |
cc8c2829 SS |
722 | } |
723 | ||
7c7dc196 | 724 | static void zfcp_fc_ct_els_job_handler(void *data) |
9d544f2b | 725 | { |
7c7dc196 CS |
726 | struct fc_bsg_job *job = data; |
727 | struct zfcp_fsf_ct_els *zfcp_ct_els = job->dd_data; | |
7dec9cf1 | 728 | struct fc_bsg_reply *jr = job->reply; |
9d544f2b | 729 | |
7dec9cf1 SS |
730 | jr->reply_payload_rcv_len = job->reply_payload.payload_len; |
731 | jr->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK; | |
732 | jr->result = zfcp_ct_els->status ? -EIO : 0; | |
9d544f2b | 733 | job->job_done(job); |
9d544f2b SS |
734 | } |
735 | ||
f09d5454 CS |
736 | static struct zfcp_fc_wka_port *zfcp_fc_job_wka_port(struct fc_bsg_job *job) |
737 | { | |
738 | u32 preamble_word1; | |
739 | u8 gs_type; | |
740 | struct zfcp_adapter *adapter; | |
741 | ||
742 | preamble_word1 = job->request->rqst_data.r_ct.preamble_word1; | |
743 | gs_type = (preamble_word1 & 0xff000000) >> 24; | |
744 | ||
745 | adapter = (struct zfcp_adapter *) job->shost->hostdata[0]; | |
746 | ||
747 | switch (gs_type) { | |
748 | case FC_FST_ALIAS: | |
749 | return &adapter->gs->as; | |
750 | case FC_FST_MGMT: | |
751 | return &adapter->gs->ms; | |
752 | case FC_FST_TIME: | |
753 | return &adapter->gs->ts; | |
754 | break; | |
755 | case FC_FST_DIR: | |
756 | return &adapter->gs->ds; | |
757 | break; | |
758 | default: | |
759 | return NULL; | |
760 | } | |
761 | } | |
762 | ||
763 | static void zfcp_fc_ct_job_handler(void *data) | |
764 | { | |
765 | struct fc_bsg_job *job = data; | |
766 | struct zfcp_fc_wka_port *wka_port; | |
767 | ||
768 | wka_port = zfcp_fc_job_wka_port(job); | |
769 | zfcp_fc_wka_port_put(wka_port); | |
770 | ||
771 | zfcp_fc_ct_els_job_handler(data); | |
772 | } | |
773 | ||
7c7dc196 CS |
774 | static int zfcp_fc_exec_els_job(struct fc_bsg_job *job, |
775 | struct zfcp_adapter *adapter) | |
9d544f2b | 776 | { |
7c7dc196 | 777 | struct zfcp_fsf_ct_els *els = job->dd_data; |
9d544f2b | 778 | struct fc_rport *rport = job->rport; |
9d544f2b | 779 | struct zfcp_port *port; |
7c7dc196 | 780 | u32 d_id; |
9d544f2b | 781 | |
9d544f2b | 782 | if (rport) { |
ea945ff8 | 783 | port = zfcp_get_port_by_wwpn(adapter, rport->port_name); |
7c7dc196 | 784 | if (!port) |
9d544f2b | 785 | return -EINVAL; |
ecf0c772 | 786 | |
7c7dc196 | 787 | d_id = port->d_id; |
615f59e0 | 788 | put_device(&port->dev); |
7c7dc196 CS |
789 | } else |
790 | d_id = ntoh24(job->request->rqst_data.h_els.port_id); | |
9d544f2b | 791 | |
f09d5454 | 792 | els->handler = zfcp_fc_ct_els_job_handler; |
51375ee8 | 793 | return zfcp_fsf_send_els(adapter, d_id, els, job->req->timeout / HZ); |
9d544f2b SS |
794 | } |
795 | ||
7c7dc196 CS |
796 | static int zfcp_fc_exec_ct_job(struct fc_bsg_job *job, |
797 | struct zfcp_adapter *adapter) | |
9d544f2b SS |
798 | { |
799 | int ret; | |
7c7dc196 CS |
800 | struct zfcp_fsf_ct_els *ct = job->dd_data; |
801 | struct zfcp_fc_wka_port *wka_port; | |
9d544f2b | 802 | |
f09d5454 CS |
803 | wka_port = zfcp_fc_job_wka_port(job); |
804 | if (!wka_port) | |
805 | return -EINVAL; | |
9d544f2b | 806 | |
7c7dc196 CS |
807 | ret = zfcp_fc_wka_port_get(wka_port); |
808 | if (ret) | |
9d544f2b | 809 | return ret; |
9d544f2b | 810 | |
f09d5454 | 811 | ct->handler = zfcp_fc_ct_job_handler; |
51375ee8 | 812 | ret = zfcp_fsf_send_ct(wka_port, ct, NULL, job->req->timeout / HZ); |
7c7dc196 CS |
813 | if (ret) |
814 | zfcp_fc_wka_port_put(wka_port); | |
9d544f2b | 815 | |
9d544f2b SS |
816 | return ret; |
817 | } | |
d5a282a1 | 818 | |
7c7dc196 CS |
819 | int zfcp_fc_exec_bsg_job(struct fc_bsg_job *job) |
820 | { | |
821 | struct Scsi_Host *shost; | |
822 | struct zfcp_adapter *adapter; | |
823 | struct zfcp_fsf_ct_els *ct_els = job->dd_data; | |
824 | ||
825 | shost = job->rport ? rport_to_shost(job->rport) : job->shost; | |
826 | adapter = (struct zfcp_adapter *)shost->hostdata[0]; | |
827 | ||
828 | if (!(atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_OPEN)) | |
829 | return -EINVAL; | |
830 | ||
831 | ct_els->req = job->request_payload.sg_list; | |
832 | ct_els->resp = job->reply_payload.sg_list; | |
7c7dc196 CS |
833 | ct_els->handler_data = job; |
834 | ||
835 | switch (job->request->msgcode) { | |
836 | case FC_BSG_RPT_ELS: | |
837 | case FC_BSG_HST_ELS_NOLOGIN: | |
838 | return zfcp_fc_exec_els_job(job, adapter); | |
839 | case FC_BSG_RPT_CT: | |
840 | case FC_BSG_HST_CT: | |
841 | return zfcp_fc_exec_ct_job(job, adapter); | |
842 | default: | |
843 | return -EINVAL; | |
844 | } | |
845 | } | |
846 | ||
491ca442 SS |
847 | int zfcp_fc_timeout_bsg_job(struct fc_bsg_job *job) |
848 | { | |
849 | /* hardware tracks timeout, reset bsg timeout to not interfere */ | |
850 | return -EAGAIN; | |
851 | } | |
852 | ||
d5a282a1 SS |
853 | int zfcp_fc_gs_setup(struct zfcp_adapter *adapter) |
854 | { | |
bd0072ec | 855 | struct zfcp_fc_wka_ports *wka_ports; |
d5a282a1 | 856 | |
bd0072ec | 857 | wka_ports = kzalloc(sizeof(struct zfcp_fc_wka_ports), GFP_KERNEL); |
d5a282a1 SS |
858 | if (!wka_ports) |
859 | return -ENOMEM; | |
860 | ||
861 | adapter->gs = wka_ports; | |
862 | zfcp_fc_wka_port_init(&wka_ports->ms, FC_FID_MGMT_SERV, adapter); | |
863 | zfcp_fc_wka_port_init(&wka_ports->ts, FC_FID_TIME_SERV, adapter); | |
864 | zfcp_fc_wka_port_init(&wka_ports->ds, FC_FID_DIR_SERV, adapter); | |
865 | zfcp_fc_wka_port_init(&wka_ports->as, FC_FID_ALIASES, adapter); | |
d5a282a1 SS |
866 | |
867 | return 0; | |
868 | } | |
869 | ||
870 | void zfcp_fc_gs_destroy(struct zfcp_adapter *adapter) | |
871 | { | |
872 | kfree(adapter->gs); | |
873 | adapter->gs = NULL; | |
874 | } | |
875 |