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92d7f7b0 JS |
1 | /******************************************************************* |
2 | * This file is part of the Emulex Linux Device Driver for * | |
3 | * Fibre Channel Host Bus Adapters. * | |
e47c9093 | 4 | * Copyright (C) 2004-2008 Emulex. All rights reserved. * |
92d7f7b0 JS |
5 | * EMULEX and SLI are trademarks of Emulex. * |
6 | * www.emulex.com * | |
7 | * Portions Copyright (C) 2004-2005 Christoph Hellwig * | |
8 | * * | |
9 | * This program is free software; you can redistribute it and/or * | |
10 | * modify it under the terms of version 2 of the GNU General * | |
11 | * Public License as published by the Free Software Foundation. * | |
12 | * This program is distributed in the hope that it will be useful. * | |
13 | * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * | |
14 | * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * | |
15 | * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * | |
16 | * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * | |
17 | * TO BE LEGALLY INVALID. See the GNU General Public License for * | |
18 | * more details, a copy of which can be found in the file COPYING * | |
19 | * included with this package. * | |
20 | *******************************************************************/ | |
21 | ||
22 | #include <linux/blkdev.h> | |
23 | #include <linux/delay.h> | |
24 | #include <linux/dma-mapping.h> | |
25 | #include <linux/idr.h> | |
26 | #include <linux/interrupt.h> | |
27 | #include <linux/kthread.h> | |
28 | #include <linux/pci.h> | |
29 | #include <linux/spinlock.h> | |
30 | ||
31 | #include <scsi/scsi.h> | |
32 | #include <scsi/scsi_device.h> | |
33 | #include <scsi/scsi_host.h> | |
34 | #include <scsi/scsi_transport_fc.h> | |
da0436e9 | 35 | #include "lpfc_hw4.h" |
92d7f7b0 JS |
36 | #include "lpfc_hw.h" |
37 | #include "lpfc_sli.h" | |
da0436e9 | 38 | #include "lpfc_sli4.h" |
ea2151b4 | 39 | #include "lpfc_nl.h" |
92d7f7b0 JS |
40 | #include "lpfc_disc.h" |
41 | #include "lpfc_scsi.h" | |
42 | #include "lpfc.h" | |
43 | #include "lpfc_logmsg.h" | |
44 | #include "lpfc_crtn.h" | |
45 | #include "lpfc_version.h" | |
46 | #include "lpfc_vport.h" | |
47 | ||
48 | inline void lpfc_vport_set_state(struct lpfc_vport *vport, | |
49 | enum fc_vport_state new_state) | |
50 | { | |
51 | struct fc_vport *fc_vport = vport->fc_vport; | |
52 | ||
53 | if (fc_vport) { | |
54 | /* | |
55 | * When the transport defines fc_vport_set state we will replace | |
56 | * this code with the following line | |
57 | */ | |
58 | /* fc_vport_set_state(fc_vport, new_state); */ | |
59 | if (new_state != FC_VPORT_INITIALIZING) | |
60 | fc_vport->vport_last_state = fc_vport->vport_state; | |
61 | fc_vport->vport_state = new_state; | |
62 | } | |
63 | ||
64 | /* for all the error states we will set the invternal state to FAILED */ | |
65 | switch (new_state) { | |
66 | case FC_VPORT_NO_FABRIC_SUPP: | |
67 | case FC_VPORT_NO_FABRIC_RSCS: | |
68 | case FC_VPORT_FABRIC_LOGOUT: | |
69 | case FC_VPORT_FABRIC_REJ_WWN: | |
70 | case FC_VPORT_FAILED: | |
71 | vport->port_state = LPFC_VPORT_FAILED; | |
72 | break; | |
73 | case FC_VPORT_LINKDOWN: | |
74 | vport->port_state = LPFC_VPORT_UNKNOWN; | |
75 | break; | |
76 | default: | |
77 | /* do nothing */ | |
78 | break; | |
79 | } | |
80 | } | |
81 | ||
82 | static int | |
83 | lpfc_alloc_vpi(struct lpfc_hba *phba) | |
84 | { | |
85 | int vpi; | |
86 | ||
87 | spin_lock_irq(&phba->hbalock); | |
858c9f6c JS |
88 | /* Start at bit 1 because vpi zero is reserved for the physical port */ |
89 | vpi = find_next_zero_bit(phba->vpi_bmask, (phba->max_vpi + 1), 1); | |
92d7f7b0 JS |
90 | if (vpi > phba->max_vpi) |
91 | vpi = 0; | |
92 | else | |
93 | set_bit(vpi, phba->vpi_bmask); | |
da0436e9 JS |
94 | if (phba->sli_rev == LPFC_SLI_REV4) |
95 | phba->sli4_hba.max_cfg_param.vpi_used++; | |
92d7f7b0 JS |
96 | spin_unlock_irq(&phba->hbalock); |
97 | return vpi; | |
98 | } | |
99 | ||
100 | static void | |
101 | lpfc_free_vpi(struct lpfc_hba *phba, int vpi) | |
102 | { | |
da0436e9 JS |
103 | if (vpi == 0) |
104 | return; | |
92d7f7b0 JS |
105 | spin_lock_irq(&phba->hbalock); |
106 | clear_bit(vpi, phba->vpi_bmask); | |
da0436e9 JS |
107 | if (phba->sli_rev == LPFC_SLI_REV4) |
108 | phba->sli4_hba.max_cfg_param.vpi_used--; | |
92d7f7b0 JS |
109 | spin_unlock_irq(&phba->hbalock); |
110 | } | |
111 | ||
112 | static int | |
113 | lpfc_vport_sparm(struct lpfc_hba *phba, struct lpfc_vport *vport) | |
114 | { | |
115 | LPFC_MBOXQ_t *pmb; | |
116 | MAILBOX_t *mb; | |
117 | struct lpfc_dmabuf *mp; | |
118 | int rc; | |
119 | ||
120 | pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
121 | if (!pmb) { | |
122 | return -ENOMEM; | |
123 | } | |
124 | mb = &pmb->mb; | |
125 | ||
126 | lpfc_read_sparam(phba, pmb, vport->vpi); | |
127 | /* | |
128 | * Grab buffer pointer and clear context1 so we can use | |
129 | * lpfc_sli_issue_box_wait | |
130 | */ | |
131 | mp = (struct lpfc_dmabuf *) pmb->context1; | |
132 | pmb->context1 = NULL; | |
133 | ||
134 | pmb->vport = vport; | |
135 | rc = lpfc_sli_issue_mbox_wait(phba, pmb, phba->fc_ratov * 2); | |
136 | if (rc != MBX_SUCCESS) { | |
98c9ea5c JS |
137 | if (signal_pending(current)) { |
138 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT | LOG_VPORT, | |
139 | "1830 Signal aborted mbxCmd x%x\n", | |
140 | mb->mbxCommand); | |
141 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
142 | kfree(mp); | |
143 | if (rc != MBX_TIMEOUT) | |
144 | mempool_free(pmb, phba->mbox_mem_pool); | |
145 | return -EINTR; | |
146 | } else { | |
147 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT | LOG_VPORT, | |
148 | "1818 VPort failed init, mbxCmd x%x " | |
149 | "READ_SPARM mbxStatus x%x, rc = x%x\n", | |
150 | mb->mbxCommand, mb->mbxStatus, rc); | |
151 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
152 | kfree(mp); | |
153 | if (rc != MBX_TIMEOUT) | |
154 | mempool_free(pmb, phba->mbox_mem_pool); | |
155 | return -EIO; | |
156 | } | |
92d7f7b0 JS |
157 | } |
158 | ||
159 | memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); | |
160 | memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, | |
161 | sizeof (struct lpfc_name)); | |
162 | memcpy(&vport->fc_portname, &vport->fc_sparam.portName, | |
163 | sizeof (struct lpfc_name)); | |
164 | ||
165 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
166 | kfree(mp); | |
167 | mempool_free(pmb, phba->mbox_mem_pool); | |
168 | ||
169 | return 0; | |
170 | } | |
171 | ||
172 | static int | |
173 | lpfc_valid_wwn_format(struct lpfc_hba *phba, struct lpfc_name *wwn, | |
174 | const char *name_type) | |
175 | { | |
176 | /* ensure that IEEE format 1 addresses | |
177 | * contain zeros in bits 59-48 | |
178 | */ | |
179 | if (!((wwn->u.wwn[0] >> 4) == 1 && | |
180 | ((wwn->u.wwn[0] & 0xf) != 0 || (wwn->u.wwn[1] & 0xf) != 0))) | |
181 | return 1; | |
182 | ||
183 | lpfc_printf_log(phba, KERN_ERR, LOG_VPORT, | |
e8b62011 | 184 | "1822 Invalid %s: %02x:%02x:%02x:%02x:" |
92d7f7b0 | 185 | "%02x:%02x:%02x:%02x\n", |
e8b62011 | 186 | name_type, |
92d7f7b0 JS |
187 | wwn->u.wwn[0], wwn->u.wwn[1], |
188 | wwn->u.wwn[2], wwn->u.wwn[3], | |
189 | wwn->u.wwn[4], wwn->u.wwn[5], | |
190 | wwn->u.wwn[6], wwn->u.wwn[7]); | |
191 | return 0; | |
192 | } | |
193 | ||
194 | static int | |
195 | lpfc_unique_wwpn(struct lpfc_hba *phba, struct lpfc_vport *new_vport) | |
196 | { | |
197 | struct lpfc_vport *vport; | |
549e55cd | 198 | unsigned long flags; |
92d7f7b0 | 199 | |
549e55cd | 200 | spin_lock_irqsave(&phba->hbalock, flags); |
92d7f7b0 JS |
201 | list_for_each_entry(vport, &phba->port_list, listentry) { |
202 | if (vport == new_vport) | |
203 | continue; | |
204 | /* If they match, return not unique */ | |
205 | if (memcmp(&vport->fc_sparam.portName, | |
549e55cd JS |
206 | &new_vport->fc_sparam.portName, |
207 | sizeof(struct lpfc_name)) == 0) { | |
208 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
92d7f7b0 | 209 | return 0; |
549e55cd | 210 | } |
92d7f7b0 | 211 | } |
549e55cd | 212 | spin_unlock_irqrestore(&phba->hbalock, flags); |
92d7f7b0 JS |
213 | return 1; |
214 | } | |
215 | ||
90160e01 | 216 | /** |
3621a710 | 217 | * lpfc_discovery_wait - Wait for driver discovery to quiesce |
90160e01 JS |
218 | * @vport: The virtual port for which this call is being executed. |
219 | * | |
220 | * This driver calls this routine specifically from lpfc_vport_delete | |
221 | * to enforce a synchronous execution of vport | |
222 | * delete relative to discovery activities. The | |
223 | * lpfc_vport_delete routine should not return until it | |
224 | * can reasonably guarantee that discovery has quiesced. | |
225 | * Post FDISC LOGO, the driver must wait until its SAN teardown is | |
226 | * complete and all resources recovered before allowing | |
227 | * cleanup. | |
228 | * | |
229 | * This routine does not require any locks held. | |
230 | **/ | |
231 | static void lpfc_discovery_wait(struct lpfc_vport *vport) | |
232 | { | |
233 | struct lpfc_hba *phba = vport->phba; | |
234 | uint32_t wait_flags = 0; | |
235 | unsigned long wait_time_max; | |
236 | unsigned long start_time; | |
237 | ||
238 | wait_flags = FC_RSCN_MODE | FC_RSCN_DISCOVERY | FC_NLP_MORE | | |
239 | FC_RSCN_DEFERRED | FC_NDISC_ACTIVE | FC_DISC_TMO; | |
240 | ||
241 | /* | |
242 | * The time constraint on this loop is a balance between the | |
243 | * fabric RA_TOV value and dev_loss tmo. The driver's | |
244 | * devloss_tmo is 10 giving this loop a 3x multiplier minimally. | |
245 | */ | |
246 | wait_time_max = msecs_to_jiffies(((phba->fc_ratov * 3) + 3) * 1000); | |
247 | wait_time_max += jiffies; | |
248 | start_time = jiffies; | |
249 | while (time_before(jiffies, wait_time_max)) { | |
250 | if ((vport->num_disc_nodes > 0) || | |
251 | (vport->fc_flag & wait_flags) || | |
252 | ((vport->port_state > LPFC_VPORT_FAILED) && | |
253 | (vport->port_state < LPFC_VPORT_READY))) { | |
254 | lpfc_printf_log(phba, KERN_INFO, LOG_VPORT, | |
255 | "1833 Vport discovery quiesce Wait:" | |
256 | " vpi x%x state x%x fc_flags x%x" | |
257 | " num_nodes x%x, waiting 1000 msecs" | |
258 | " total wait msecs x%x\n", | |
259 | vport->vpi, vport->port_state, | |
260 | vport->fc_flag, vport->num_disc_nodes, | |
261 | jiffies_to_msecs(jiffies - start_time)); | |
262 | msleep(1000); | |
263 | } else { | |
264 | /* Base case. Wait variants satisfied. Break out */ | |
265 | lpfc_printf_log(phba, KERN_INFO, LOG_VPORT, | |
266 | "1834 Vport discovery quiesced:" | |
267 | " vpi x%x state x%x fc_flags x%x" | |
268 | " wait msecs x%x\n", | |
269 | vport->vpi, vport->port_state, | |
270 | vport->fc_flag, | |
271 | jiffies_to_msecs(jiffies | |
272 | - start_time)); | |
273 | break; | |
274 | } | |
275 | } | |
276 | ||
277 | if (time_after(jiffies, wait_time_max)) | |
278 | lpfc_printf_log(phba, KERN_ERR, LOG_VPORT, | |
279 | "1835 Vport discovery quiesce failed:" | |
280 | " vpi x%x state x%x fc_flags x%x" | |
281 | " wait msecs x%x\n", | |
282 | vport->vpi, vport->port_state, | |
283 | vport->fc_flag, | |
284 | jiffies_to_msecs(jiffies - start_time)); | |
285 | } | |
286 | ||
92d7f7b0 JS |
287 | int |
288 | lpfc_vport_create(struct fc_vport *fc_vport, bool disable) | |
289 | { | |
290 | struct lpfc_nodelist *ndlp; | |
3de2a653 JS |
291 | struct Scsi_Host *shost = fc_vport->shost; |
292 | struct lpfc_vport *pport = (struct lpfc_vport *) shost->hostdata; | |
92d7f7b0 JS |
293 | struct lpfc_hba *phba = pport->phba; |
294 | struct lpfc_vport *vport = NULL; | |
295 | int instance; | |
296 | int vpi; | |
297 | int rc = VPORT_ERROR; | |
98c9ea5c | 298 | int status; |
92d7f7b0 | 299 | |
eada272d | 300 | if ((phba->sli_rev < 3) || !(phba->cfg_enable_npiv)) { |
92d7f7b0 | 301 | lpfc_printf_log(phba, KERN_ERR, LOG_VPORT, |
e8b62011 | 302 | "1808 Create VPORT failed: " |
92d7f7b0 | 303 | "NPIV is not enabled: SLImode:%d\n", |
e8b62011 | 304 | phba->sli_rev); |
92d7f7b0 JS |
305 | rc = VPORT_INVAL; |
306 | goto error_out; | |
307 | } | |
308 | ||
309 | vpi = lpfc_alloc_vpi(phba); | |
310 | if (vpi == 0) { | |
311 | lpfc_printf_log(phba, KERN_ERR, LOG_VPORT, | |
e8b62011 | 312 | "1809 Create VPORT failed: " |
92d7f7b0 | 313 | "Max VPORTs (%d) exceeded\n", |
e8b62011 | 314 | phba->max_vpi); |
92d7f7b0 JS |
315 | rc = VPORT_NORESOURCES; |
316 | goto error_out; | |
317 | } | |
318 | ||
da0436e9 JS |
319 | /* |
320 | * In SLI4, the vpi must be activated before it can be used | |
321 | * by the port. | |
322 | */ | |
323 | if (phba->sli_rev == LPFC_SLI_REV4) { | |
324 | rc = lpfc_sli4_init_vpi(phba, vpi); | |
325 | if (rc) { | |
326 | lpfc_printf_log(phba, KERN_ERR, LOG_VPORT, | |
327 | "1838 Failed to INIT_VPI on vpi %d " | |
328 | "status %d\n", vpi, rc); | |
329 | rc = VPORT_NORESOURCES; | |
330 | lpfc_free_vpi(phba, vpi); | |
331 | goto error_out; | |
332 | } | |
333 | } | |
92d7f7b0 JS |
334 | |
335 | /* Assign an unused board number */ | |
336 | if ((instance = lpfc_get_instance()) < 0) { | |
337 | lpfc_printf_log(phba, KERN_ERR, LOG_VPORT, | |
e8b62011 JS |
338 | "1810 Create VPORT failed: Cannot get " |
339 | "instance number\n"); | |
92d7f7b0 JS |
340 | lpfc_free_vpi(phba, vpi); |
341 | rc = VPORT_NORESOURCES; | |
342 | goto error_out; | |
343 | } | |
344 | ||
3de2a653 | 345 | vport = lpfc_create_port(phba, instance, &fc_vport->dev); |
92d7f7b0 JS |
346 | if (!vport) { |
347 | lpfc_printf_log(phba, KERN_ERR, LOG_VPORT, | |
e8b62011 | 348 | "1811 Create VPORT failed: vpi x%x\n", vpi); |
92d7f7b0 JS |
349 | lpfc_free_vpi(phba, vpi); |
350 | rc = VPORT_NORESOURCES; | |
351 | goto error_out; | |
352 | } | |
353 | ||
354 | vport->vpi = vpi; | |
858c9f6c JS |
355 | lpfc_debugfs_initialize(vport); |
356 | ||
98c9ea5c JS |
357 | if ((status = lpfc_vport_sparm(phba, vport))) { |
358 | if (status == -EINTR) { | |
359 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, | |
360 | "1831 Create VPORT Interrupted.\n"); | |
361 | rc = VPORT_ERROR; | |
362 | } else { | |
363 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, | |
364 | "1813 Create VPORT failed. " | |
365 | "Cannot get sparam\n"); | |
366 | rc = VPORT_NORESOURCES; | |
367 | } | |
92d7f7b0 JS |
368 | lpfc_free_vpi(phba, vpi); |
369 | destroy_port(vport); | |
92d7f7b0 JS |
370 | goto error_out; |
371 | } | |
372 | ||
373 | memcpy(vport->fc_portname.u.wwn, vport->fc_sparam.portName.u.wwn, 8); | |
374 | memcpy(vport->fc_nodename.u.wwn, vport->fc_sparam.nodeName.u.wwn, 8); | |
92d7f7b0 JS |
375 | if (fc_vport->node_name != 0) |
376 | u64_to_wwn(fc_vport->node_name, vport->fc_nodename.u.wwn); | |
377 | if (fc_vport->port_name != 0) | |
378 | u64_to_wwn(fc_vport->port_name, vport->fc_portname.u.wwn); | |
379 | ||
380 | memcpy(&vport->fc_sparam.portName, vport->fc_portname.u.wwn, 8); | |
381 | memcpy(&vport->fc_sparam.nodeName, vport->fc_nodename.u.wwn, 8); | |
382 | ||
383 | if (!lpfc_valid_wwn_format(phba, &vport->fc_sparam.nodeName, "WWNN") || | |
384 | !lpfc_valid_wwn_format(phba, &vport->fc_sparam.portName, "WWPN")) { | |
e8b62011 JS |
385 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
386 | "1821 Create VPORT failed. " | |
387 | "Invalid WWN format\n"); | |
92d7f7b0 JS |
388 | lpfc_free_vpi(phba, vpi); |
389 | destroy_port(vport); | |
390 | rc = VPORT_INVAL; | |
391 | goto error_out; | |
392 | } | |
393 | ||
394 | if (!lpfc_unique_wwpn(phba, vport)) { | |
e8b62011 JS |
395 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
396 | "1823 Create VPORT failed. " | |
397 | "Duplicate WWN on HBA\n"); | |
92d7f7b0 JS |
398 | lpfc_free_vpi(phba, vpi); |
399 | destroy_port(vport); | |
400 | rc = VPORT_INVAL; | |
401 | goto error_out; | |
402 | } | |
403 | ||
eada272d JS |
404 | /* Create binary sysfs attribute for vport */ |
405 | lpfc_alloc_sysfs_attr(vport); | |
406 | ||
92d7f7b0 JS |
407 | *(struct lpfc_vport **)fc_vport->dd_data = vport; |
408 | vport->fc_vport = fc_vport; | |
409 | ||
410 | if ((phba->link_state < LPFC_LINK_UP) || | |
411 | (phba->fc_topology == TOPOLOGY_LOOP)) { | |
412 | lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); | |
413 | rc = VPORT_OK; | |
414 | goto out; | |
415 | } | |
416 | ||
417 | if (disable) { | |
eada272d | 418 | lpfc_vport_set_state(vport, FC_VPORT_DISABLED); |
92d7f7b0 JS |
419 | rc = VPORT_OK; |
420 | goto out; | |
421 | } | |
422 | ||
423 | /* Use the Physical nodes Fabric NDLP to determine if the link is | |
424 | * up and ready to FDISC. | |
425 | */ | |
426 | ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); | |
e47c9093 JS |
427 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
428 | ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) { | |
858c9f6c JS |
429 | if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) { |
430 | lpfc_set_disctmo(vport); | |
431 | lpfc_initial_fdisc(vport); | |
432 | } else { | |
433 | lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); | |
e8b62011 JS |
434 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
435 | "0262 No NPIV Fabric support\n"); | |
858c9f6c | 436 | } |
92d7f7b0 JS |
437 | } else { |
438 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
439 | } | |
440 | rc = VPORT_OK; | |
441 | ||
442 | out: | |
a58cbd52 JS |
443 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
444 | "1825 Vport Created.\n"); | |
92d7f7b0 JS |
445 | lpfc_host_attrib_init(lpfc_shost_from_vport(vport)); |
446 | error_out: | |
447 | return rc; | |
448 | } | |
449 | ||
311464ec | 450 | static int |
92d7f7b0 JS |
451 | disable_vport(struct fc_vport *fc_vport) |
452 | { | |
453 | struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; | |
454 | struct lpfc_hba *phba = vport->phba; | |
455 | struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL; | |
456 | long timeout; | |
457 | ||
458 | ndlp = lpfc_findnode_did(vport, Fabric_DID); | |
e47c9093 JS |
459 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) |
460 | && phba->link_state >= LPFC_LINK_UP) { | |
92d7f7b0 JS |
461 | vport->unreg_vpi_cmpl = VPORT_INVAL; |
462 | timeout = msecs_to_jiffies(phba->fc_ratov * 2000); | |
463 | if (!lpfc_issue_els_npiv_logo(vport, ndlp)) | |
464 | while (vport->unreg_vpi_cmpl == VPORT_INVAL && timeout) | |
465 | timeout = schedule_timeout(timeout); | |
466 | } | |
467 | ||
468 | lpfc_sli_host_down(vport); | |
469 | ||
470 | /* Mark all nodes for discovery so we can remove them by | |
471 | * calling lpfc_cleanup_rpis(vport, 1) | |
472 | */ | |
473 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { | |
e47c9093 JS |
474 | if (!NLP_CHK_NODE_ACT(ndlp)) |
475 | continue; | |
92d7f7b0 JS |
476 | if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) |
477 | continue; | |
478 | lpfc_disc_state_machine(vport, ndlp, NULL, | |
479 | NLP_EVT_DEVICE_RECOVERY); | |
480 | } | |
481 | lpfc_cleanup_rpis(vport, 1); | |
482 | ||
483 | lpfc_stop_vport_timers(vport); | |
484 | lpfc_unreg_all_rpis(vport); | |
485 | lpfc_unreg_default_rpis(vport); | |
486 | /* | |
487 | * Completion of unreg_vpi (lpfc_mbx_cmpl_unreg_vpi) does the | |
488 | * scsi_host_put() to release the vport. | |
489 | */ | |
490 | lpfc_mbx_unreg_vpi(vport); | |
491 | ||
492 | lpfc_vport_set_state(vport, FC_VPORT_DISABLED); | |
a58cbd52 JS |
493 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
494 | "1826 Vport Disabled.\n"); | |
92d7f7b0 JS |
495 | return VPORT_OK; |
496 | } | |
497 | ||
311464ec | 498 | static int |
92d7f7b0 JS |
499 | enable_vport(struct fc_vport *fc_vport) |
500 | { | |
501 | struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; | |
502 | struct lpfc_hba *phba = vport->phba; | |
503 | struct lpfc_nodelist *ndlp = NULL; | |
504 | ||
505 | if ((phba->link_state < LPFC_LINK_UP) || | |
506 | (phba->fc_topology == TOPOLOGY_LOOP)) { | |
507 | lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); | |
508 | return VPORT_OK; | |
509 | } | |
510 | ||
511 | vport->load_flag |= FC_LOADING; | |
512 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; | |
513 | ||
514 | /* Use the Physical nodes Fabric NDLP to determine if the link is | |
515 | * up and ready to FDISC. | |
516 | */ | |
517 | ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); | |
e47c9093 JS |
518 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) |
519 | && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) { | |
858c9f6c JS |
520 | if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) { |
521 | lpfc_set_disctmo(vport); | |
522 | lpfc_initial_fdisc(vport); | |
523 | } else { | |
524 | lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); | |
e8b62011 JS |
525 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
526 | "0264 No NPIV Fabric support\n"); | |
858c9f6c | 527 | } |
92d7f7b0 JS |
528 | } else { |
529 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
530 | } | |
a58cbd52 JS |
531 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
532 | "1827 Vport Enabled.\n"); | |
92d7f7b0 JS |
533 | return VPORT_OK; |
534 | } | |
535 | ||
536 | int | |
537 | lpfc_vport_disable(struct fc_vport *fc_vport, bool disable) | |
538 | { | |
539 | if (disable) | |
540 | return disable_vport(fc_vport); | |
541 | else | |
542 | return enable_vport(fc_vport); | |
543 | } | |
544 | ||
545 | ||
546 | int | |
547 | lpfc_vport_delete(struct fc_vport *fc_vport) | |
548 | { | |
549 | struct lpfc_nodelist *ndlp = NULL; | |
92d7f7b0 JS |
550 | struct Scsi_Host *shost = (struct Scsi_Host *) fc_vport->shost; |
551 | struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; | |
552 | struct lpfc_hba *phba = vport->phba; | |
553 | long timeout; | |
92d7f7b0 | 554 | |
51ef4c26 JS |
555 | if (vport->port_type == LPFC_PHYSICAL_PORT) { |
556 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, | |
557 | "1812 vport_delete failed: Cannot delete " | |
558 | "physical host\n"); | |
559 | return VPORT_ERROR; | |
560 | } | |
561 | /* | |
562 | * If we are not unloading the driver then prevent the vport_delete | |
563 | * from happening until after this vport's discovery is finished. | |
564 | */ | |
565 | if (!(phba->pport->load_flag & FC_UNLOADING)) { | |
566 | int check_count = 0; | |
567 | while (check_count < ((phba->fc_ratov * 3) + 3) && | |
568 | vport->port_state > LPFC_VPORT_FAILED && | |
569 | vport->port_state < LPFC_VPORT_READY) { | |
570 | check_count++; | |
571 | msleep(1000); | |
572 | } | |
573 | if (vport->port_state > LPFC_VPORT_FAILED && | |
574 | vport->port_state < LPFC_VPORT_READY) | |
575 | return -EAGAIN; | |
576 | } | |
92d7f7b0 JS |
577 | /* |
578 | * This is a bit of a mess. We want to ensure the shost doesn't get | |
579 | * torn down until we're done with the embedded lpfc_vport structure. | |
580 | * | |
581 | * Beyond holding a reference for this function, we also need a | |
582 | * reference for outstanding I/O requests we schedule during delete | |
583 | * processing. But once we scsi_remove_host() we can no longer obtain | |
584 | * a reference through scsi_host_get(). | |
585 | * | |
586 | * So we take two references here. We release one reference at the | |
587 | * bottom of the function -- after delinking the vport. And we | |
588 | * release the other at the completion of the unreg_vpi that get's | |
589 | * initiated after we've disposed of all other resources associated | |
590 | * with the port. | |
591 | */ | |
d7c255b2 | 592 | if (!scsi_host_get(shost)) |
92d7f7b0 | 593 | return VPORT_INVAL; |
d7c255b2 JS |
594 | if (!scsi_host_get(shost)) { |
595 | scsi_host_put(shost); | |
596 | return VPORT_INVAL; | |
597 | } | |
51ef4c26 | 598 | spin_lock_irq(&phba->hbalock); |
92d7f7b0 | 599 | vport->load_flag |= FC_UNLOADING; |
51ef4c26 | 600 | spin_unlock_irq(&phba->hbalock); |
eada272d JS |
601 | |
602 | lpfc_free_sysfs_attr(vport); | |
603 | ||
858c9f6c | 604 | lpfc_debugfs_terminate(vport); |
eada272d JS |
605 | |
606 | /* Remove FC host and then SCSI host with the vport */ | |
92d7f7b0 JS |
607 | fc_remove_host(lpfc_shost_from_vport(vport)); |
608 | scsi_remove_host(lpfc_shost_from_vport(vport)); | |
609 | ||
610 | ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); | |
e47c9093 JS |
611 | |
612 | /* In case of driver unload, we shall not perform fabric logo as the | |
613 | * worker thread already stopped at this stage and, in this case, we | |
614 | * can safely skip the fabric logo. | |
615 | */ | |
616 | if (phba->pport->load_flag & FC_UNLOADING) { | |
617 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && | |
618 | ndlp->nlp_state == NLP_STE_UNMAPPED_NODE && | |
619 | phba->link_state >= LPFC_LINK_UP) { | |
620 | /* First look for the Fabric ndlp */ | |
621 | ndlp = lpfc_findnode_did(vport, Fabric_DID); | |
622 | if (!ndlp) | |
623 | goto skip_logo; | |
624 | else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
625 | ndlp = lpfc_enable_node(vport, ndlp, | |
626 | NLP_STE_UNUSED_NODE); | |
627 | if (!ndlp) | |
628 | goto skip_logo; | |
629 | } | |
630 | /* Remove ndlp from vport npld list */ | |
631 | lpfc_dequeue_node(vport, ndlp); | |
632 | ||
633 | /* Indicate free memory when release */ | |
634 | spin_lock_irq(&phba->ndlp_lock); | |
635 | NLP_SET_FREE_REQ(ndlp); | |
636 | spin_unlock_irq(&phba->ndlp_lock); | |
637 | /* Kick off release ndlp when it can be safely done */ | |
638 | lpfc_nlp_put(ndlp); | |
639 | } | |
640 | goto skip_logo; | |
641 | } | |
642 | ||
643 | /* Otherwise, we will perform fabric logo as needed */ | |
644 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && | |
645 | ndlp->nlp_state == NLP_STE_UNMAPPED_NODE && | |
58da1ffb JS |
646 | phba->link_state >= LPFC_LINK_UP && |
647 | phba->fc_topology != TOPOLOGY_LOOP) { | |
7ee5d43e JS |
648 | if (vport->cfg_enable_da_id) { |
649 | timeout = msecs_to_jiffies(phba->fc_ratov * 2000); | |
650 | if (!lpfc_ns_cmd(vport, SLI_CTNS_DA_ID, 0, 0)) | |
651 | while (vport->ct_flags && timeout) | |
652 | timeout = schedule_timeout(timeout); | |
653 | else | |
654 | lpfc_printf_log(vport->phba, KERN_WARNING, | |
655 | LOG_VPORT, | |
656 | "1829 CT command failed to " | |
657 | "delete objects on fabric. \n"); | |
658 | } | |
92d7f7b0 JS |
659 | /* First look for the Fabric ndlp */ |
660 | ndlp = lpfc_findnode_did(vport, Fabric_DID); | |
661 | if (!ndlp) { | |
662 | /* Cannot find existing Fabric ndlp, allocate one */ | |
663 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
664 | if (!ndlp) | |
665 | goto skip_logo; | |
666 | lpfc_nlp_init(vport, ndlp, Fabric_DID); | |
e47c9093 JS |
667 | /* Indicate free memory when release */ |
668 | NLP_SET_FREE_REQ(ndlp); | |
92d7f7b0 | 669 | } else { |
e47c9093 JS |
670 | if (!NLP_CHK_NODE_ACT(ndlp)) |
671 | ndlp = lpfc_enable_node(vport, ndlp, | |
672 | NLP_STE_UNUSED_NODE); | |
673 | if (!ndlp) | |
674 | goto skip_logo; | |
675 | ||
676 | /* Remove ndlp from vport npld list */ | |
92d7f7b0 | 677 | lpfc_dequeue_node(vport, ndlp); |
e47c9093 JS |
678 | spin_lock_irq(&phba->ndlp_lock); |
679 | if (!NLP_CHK_FREE_REQ(ndlp)) | |
680 | /* Indicate free memory when release */ | |
681 | NLP_SET_FREE_REQ(ndlp); | |
682 | else { | |
683 | /* Skip this if ndlp is already in free mode */ | |
684 | spin_unlock_irq(&phba->ndlp_lock); | |
685 | goto skip_logo; | |
686 | } | |
687 | spin_unlock_irq(&phba->ndlp_lock); | |
92d7f7b0 JS |
688 | } |
689 | vport->unreg_vpi_cmpl = VPORT_INVAL; | |
690 | timeout = msecs_to_jiffies(phba->fc_ratov * 2000); | |
d7c255b2 JS |
691 | if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) |
692 | goto skip_logo; | |
92d7f7b0 JS |
693 | if (!lpfc_issue_els_npiv_logo(vport, ndlp)) |
694 | while (vport->unreg_vpi_cmpl == VPORT_INVAL && timeout) | |
695 | timeout = schedule_timeout(timeout); | |
696 | } | |
697 | ||
90160e01 JS |
698 | if (!(phba->pport->load_flag & FC_UNLOADING)) |
699 | lpfc_discovery_wait(vport); | |
700 | ||
92d7f7b0 | 701 | skip_logo: |
87af33fe | 702 | lpfc_cleanup(vport); |
92d7f7b0 JS |
703 | lpfc_sli_host_down(vport); |
704 | ||
92d7f7b0 | 705 | lpfc_stop_vport_timers(vport); |
87af33fe JS |
706 | |
707 | if (!(phba->pport->load_flag & FC_UNLOADING)) { | |
e47c9093 | 708 | lpfc_unreg_all_rpis(vport); |
87af33fe JS |
709 | lpfc_unreg_default_rpis(vport); |
710 | /* | |
711 | * Completion of unreg_vpi (lpfc_mbx_cmpl_unreg_vpi) | |
712 | * does the scsi_host_put() to release the vport. | |
713 | */ | |
d7c255b2 JS |
714 | if (lpfc_mbx_unreg_vpi(vport)) |
715 | scsi_host_put(shost); | |
716 | } else | |
717 | scsi_host_put(shost); | |
92d7f7b0 JS |
718 | |
719 | lpfc_free_vpi(phba, vport->vpi); | |
720 | vport->work_port_events = 0; | |
721 | spin_lock_irq(&phba->hbalock); | |
722 | list_del_init(&vport->listentry); | |
723 | spin_unlock_irq(&phba->hbalock); | |
a58cbd52 JS |
724 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
725 | "1828 Vport Deleted.\n"); | |
92d7f7b0 | 726 | scsi_host_put(shost); |
51ef4c26 | 727 | return VPORT_OK; |
92d7f7b0 JS |
728 | } |
729 | ||
549e55cd JS |
730 | struct lpfc_vport ** |
731 | lpfc_create_vport_work_array(struct lpfc_hba *phba) | |
732 | { | |
733 | struct lpfc_vport *port_iterator; | |
734 | struct lpfc_vport **vports; | |
735 | int index = 0; | |
09372820 | 736 | vports = kzalloc((phba->max_vpi + 1) * sizeof(struct lpfc_vport *), |
549e55cd JS |
737 | GFP_KERNEL); |
738 | if (vports == NULL) | |
739 | return NULL; | |
740 | spin_lock_irq(&phba->hbalock); | |
741 | list_for_each_entry(port_iterator, &phba->port_list, listentry) { | |
e8b62011 | 742 | if (!scsi_host_get(lpfc_shost_from_vport(port_iterator))) { |
51ef4c26 | 743 | lpfc_printf_vlog(port_iterator, KERN_WARNING, LOG_VPORT, |
e8b62011 JS |
744 | "1801 Create vport work array FAILED: " |
745 | "cannot do scsi_host_get\n"); | |
549e55cd | 746 | continue; |
e8b62011 | 747 | } |
549e55cd JS |
748 | vports[index++] = port_iterator; |
749 | } | |
750 | spin_unlock_irq(&phba->hbalock); | |
751 | return vports; | |
752 | } | |
753 | ||
754 | void | |
09372820 | 755 | lpfc_destroy_vport_work_array(struct lpfc_hba *phba, struct lpfc_vport **vports) |
549e55cd JS |
756 | { |
757 | int i; | |
758 | if (vports == NULL) | |
759 | return; | |
09372820 | 760 | for (i=0; vports[i] != NULL && i <= phba->max_vpi; i++) |
549e55cd JS |
761 | scsi_host_put(lpfc_shost_from_vport(vports[i])); |
762 | kfree(vports); | |
763 | } | |
ea2151b4 JS |
764 | |
765 | ||
766 | /** | |
3621a710 | 767 | * lpfc_vport_reset_stat_data - Reset the statistical data for the vport |
ea2151b4 JS |
768 | * @vport: Pointer to vport object. |
769 | * | |
770 | * This function resets the statistical data for the vport. This function | |
771 | * is called with the host_lock held | |
772 | **/ | |
773 | void | |
774 | lpfc_vport_reset_stat_data(struct lpfc_vport *vport) | |
775 | { | |
776 | struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL; | |
777 | ||
778 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { | |
779 | if (!NLP_CHK_NODE_ACT(ndlp)) | |
780 | continue; | |
781 | if (ndlp->lat_data) | |
782 | memset(ndlp->lat_data, 0, LPFC_MAX_BUCKET_COUNT * | |
783 | sizeof(struct lpfc_scsicmd_bkt)); | |
784 | } | |
785 | } | |
786 | ||
787 | ||
788 | /** | |
3621a710 | 789 | * lpfc_alloc_bucket - Allocate data buffer required for statistical data |
ea2151b4 JS |
790 | * @vport: Pointer to vport object. |
791 | * | |
792 | * This function allocates data buffer required for all the FC | |
793 | * nodes of the vport to collect statistical data. | |
794 | **/ | |
795 | void | |
796 | lpfc_alloc_bucket(struct lpfc_vport *vport) | |
797 | { | |
798 | struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL; | |
799 | ||
800 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { | |
801 | if (!NLP_CHK_NODE_ACT(ndlp)) | |
802 | continue; | |
803 | ||
804 | kfree(ndlp->lat_data); | |
805 | ndlp->lat_data = NULL; | |
806 | ||
807 | if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) { | |
808 | ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT, | |
809 | sizeof(struct lpfc_scsicmd_bkt), | |
810 | GFP_ATOMIC); | |
811 | ||
812 | if (!ndlp->lat_data) | |
813 | lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, | |
814 | "0287 lpfc_alloc_bucket failed to " | |
815 | "allocate statistical data buffer DID " | |
816 | "0x%x\n", ndlp->nlp_DID); | |
817 | } | |
818 | } | |
819 | } | |
820 | ||
821 | /** | |
3621a710 | 822 | * lpfc_free_bucket - Free data buffer required for statistical data |
ea2151b4 JS |
823 | * @vport: Pointer to vport object. |
824 | * | |
825 | * Th function frees statistical data buffer of all the FC | |
826 | * nodes of the vport. | |
827 | **/ | |
828 | void | |
829 | lpfc_free_bucket(struct lpfc_vport *vport) | |
830 | { | |
831 | struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL; | |
832 | ||
833 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { | |
834 | if (!NLP_CHK_NODE_ACT(ndlp)) | |
835 | continue; | |
836 | ||
837 | kfree(ndlp->lat_data); | |
838 | ndlp->lat_data = NULL; | |
839 | } | |
840 | } |