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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> | |
5a0e3ad6 | 29 | #include <linux/slab.h> |
92d7f7b0 JS |
30 | #include <linux/spinlock.h> |
31 | ||
32 | #include <scsi/scsi.h> | |
33 | #include <scsi/scsi_device.h> | |
34 | #include <scsi/scsi_host.h> | |
35 | #include <scsi/scsi_transport_fc.h> | |
da0436e9 | 36 | #include "lpfc_hw4.h" |
92d7f7b0 JS |
37 | #include "lpfc_hw.h" |
38 | #include "lpfc_sli.h" | |
da0436e9 | 39 | #include "lpfc_sli4.h" |
ea2151b4 | 40 | #include "lpfc_nl.h" |
92d7f7b0 JS |
41 | #include "lpfc_disc.h" |
42 | #include "lpfc_scsi.h" | |
43 | #include "lpfc.h" | |
44 | #include "lpfc_logmsg.h" | |
45 | #include "lpfc_crtn.h" | |
46 | #include "lpfc_version.h" | |
47 | #include "lpfc_vport.h" | |
48 | ||
49 | inline void lpfc_vport_set_state(struct lpfc_vport *vport, | |
50 | enum fc_vport_state new_state) | |
51 | { | |
52 | struct fc_vport *fc_vport = vport->fc_vport; | |
53 | ||
54 | if (fc_vport) { | |
55 | /* | |
56 | * When the transport defines fc_vport_set state we will replace | |
57 | * this code with the following line | |
58 | */ | |
59 | /* fc_vport_set_state(fc_vport, new_state); */ | |
60 | if (new_state != FC_VPORT_INITIALIZING) | |
61 | fc_vport->vport_last_state = fc_vport->vport_state; | |
62 | fc_vport->vport_state = new_state; | |
63 | } | |
64 | ||
65 | /* for all the error states we will set the invternal state to FAILED */ | |
66 | switch (new_state) { | |
67 | case FC_VPORT_NO_FABRIC_SUPP: | |
68 | case FC_VPORT_NO_FABRIC_RSCS: | |
69 | case FC_VPORT_FABRIC_LOGOUT: | |
70 | case FC_VPORT_FABRIC_REJ_WWN: | |
71 | case FC_VPORT_FAILED: | |
72 | vport->port_state = LPFC_VPORT_FAILED; | |
73 | break; | |
74 | case FC_VPORT_LINKDOWN: | |
75 | vport->port_state = LPFC_VPORT_UNKNOWN; | |
76 | break; | |
77 | default: | |
78 | /* do nothing */ | |
79 | break; | |
80 | } | |
81 | } | |
82 | ||
83 | static int | |
84 | lpfc_alloc_vpi(struct lpfc_hba *phba) | |
85 | { | |
86 | int vpi; | |
87 | ||
88 | spin_lock_irq(&phba->hbalock); | |
858c9f6c JS |
89 | /* Start at bit 1 because vpi zero is reserved for the physical port */ |
90 | vpi = find_next_zero_bit(phba->vpi_bmask, (phba->max_vpi + 1), 1); | |
92d7f7b0 JS |
91 | if (vpi > phba->max_vpi) |
92 | vpi = 0; | |
93 | else | |
94 | set_bit(vpi, phba->vpi_bmask); | |
da0436e9 JS |
95 | if (phba->sli_rev == LPFC_SLI_REV4) |
96 | phba->sli4_hba.max_cfg_param.vpi_used++; | |
92d7f7b0 JS |
97 | spin_unlock_irq(&phba->hbalock); |
98 | return vpi; | |
99 | } | |
100 | ||
101 | static void | |
102 | lpfc_free_vpi(struct lpfc_hba *phba, int vpi) | |
103 | { | |
da0436e9 JS |
104 | if (vpi == 0) |
105 | return; | |
92d7f7b0 JS |
106 | spin_lock_irq(&phba->hbalock); |
107 | clear_bit(vpi, phba->vpi_bmask); | |
da0436e9 JS |
108 | if (phba->sli_rev == LPFC_SLI_REV4) |
109 | phba->sli4_hba.max_cfg_param.vpi_used--; | |
92d7f7b0 JS |
110 | spin_unlock_irq(&phba->hbalock); |
111 | } | |
112 | ||
113 | static int | |
114 | lpfc_vport_sparm(struct lpfc_hba *phba, struct lpfc_vport *vport) | |
115 | { | |
116 | LPFC_MBOXQ_t *pmb; | |
117 | MAILBOX_t *mb; | |
118 | struct lpfc_dmabuf *mp; | |
119 | int rc; | |
120 | ||
121 | pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
122 | if (!pmb) { | |
123 | return -ENOMEM; | |
124 | } | |
f4b4c68f | 125 | mb = &pmb->u.mb; |
92d7f7b0 | 126 | |
9f1177a3 JS |
127 | rc = lpfc_read_sparam(phba, pmb, vport->vpi); |
128 | if (rc) { | |
129 | mempool_free(pmb, phba->mbox_mem_pool); | |
130 | return -ENOMEM; | |
131 | } | |
132 | ||
92d7f7b0 JS |
133 | /* |
134 | * Grab buffer pointer and clear context1 so we can use | |
135 | * lpfc_sli_issue_box_wait | |
136 | */ | |
137 | mp = (struct lpfc_dmabuf *) pmb->context1; | |
138 | pmb->context1 = NULL; | |
139 | ||
140 | pmb->vport = vport; | |
141 | rc = lpfc_sli_issue_mbox_wait(phba, pmb, phba->fc_ratov * 2); | |
142 | if (rc != MBX_SUCCESS) { | |
98c9ea5c JS |
143 | if (signal_pending(current)) { |
144 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT | LOG_VPORT, | |
145 | "1830 Signal aborted mbxCmd x%x\n", | |
146 | mb->mbxCommand); | |
147 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
148 | kfree(mp); | |
149 | if (rc != MBX_TIMEOUT) | |
150 | mempool_free(pmb, phba->mbox_mem_pool); | |
151 | return -EINTR; | |
152 | } else { | |
153 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT | LOG_VPORT, | |
154 | "1818 VPort failed init, mbxCmd x%x " | |
155 | "READ_SPARM mbxStatus x%x, rc = x%x\n", | |
156 | mb->mbxCommand, mb->mbxStatus, rc); | |
157 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
158 | kfree(mp); | |
159 | if (rc != MBX_TIMEOUT) | |
160 | mempool_free(pmb, phba->mbox_mem_pool); | |
161 | return -EIO; | |
162 | } | |
92d7f7b0 JS |
163 | } |
164 | ||
165 | memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); | |
166 | memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, | |
167 | sizeof (struct lpfc_name)); | |
168 | memcpy(&vport->fc_portname, &vport->fc_sparam.portName, | |
169 | sizeof (struct lpfc_name)); | |
170 | ||
171 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
172 | kfree(mp); | |
173 | mempool_free(pmb, phba->mbox_mem_pool); | |
174 | ||
175 | return 0; | |
176 | } | |
177 | ||
178 | static int | |
179 | lpfc_valid_wwn_format(struct lpfc_hba *phba, struct lpfc_name *wwn, | |
180 | const char *name_type) | |
181 | { | |
182 | /* ensure that IEEE format 1 addresses | |
183 | * contain zeros in bits 59-48 | |
184 | */ | |
185 | if (!((wwn->u.wwn[0] >> 4) == 1 && | |
186 | ((wwn->u.wwn[0] & 0xf) != 0 || (wwn->u.wwn[1] & 0xf) != 0))) | |
187 | return 1; | |
188 | ||
189 | lpfc_printf_log(phba, KERN_ERR, LOG_VPORT, | |
e8b62011 | 190 | "1822 Invalid %s: %02x:%02x:%02x:%02x:" |
92d7f7b0 | 191 | "%02x:%02x:%02x:%02x\n", |
e8b62011 | 192 | name_type, |
92d7f7b0 JS |
193 | wwn->u.wwn[0], wwn->u.wwn[1], |
194 | wwn->u.wwn[2], wwn->u.wwn[3], | |
195 | wwn->u.wwn[4], wwn->u.wwn[5], | |
196 | wwn->u.wwn[6], wwn->u.wwn[7]); | |
197 | return 0; | |
198 | } | |
199 | ||
200 | static int | |
201 | lpfc_unique_wwpn(struct lpfc_hba *phba, struct lpfc_vport *new_vport) | |
202 | { | |
203 | struct lpfc_vport *vport; | |
549e55cd | 204 | unsigned long flags; |
92d7f7b0 | 205 | |
549e55cd | 206 | spin_lock_irqsave(&phba->hbalock, flags); |
92d7f7b0 JS |
207 | list_for_each_entry(vport, &phba->port_list, listentry) { |
208 | if (vport == new_vport) | |
209 | continue; | |
210 | /* If they match, return not unique */ | |
211 | if (memcmp(&vport->fc_sparam.portName, | |
549e55cd JS |
212 | &new_vport->fc_sparam.portName, |
213 | sizeof(struct lpfc_name)) == 0) { | |
214 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
92d7f7b0 | 215 | return 0; |
549e55cd | 216 | } |
92d7f7b0 | 217 | } |
549e55cd | 218 | spin_unlock_irqrestore(&phba->hbalock, flags); |
92d7f7b0 JS |
219 | return 1; |
220 | } | |
221 | ||
90160e01 | 222 | /** |
3621a710 | 223 | * lpfc_discovery_wait - Wait for driver discovery to quiesce |
90160e01 JS |
224 | * @vport: The virtual port for which this call is being executed. |
225 | * | |
226 | * This driver calls this routine specifically from lpfc_vport_delete | |
227 | * to enforce a synchronous execution of vport | |
228 | * delete relative to discovery activities. The | |
229 | * lpfc_vport_delete routine should not return until it | |
230 | * can reasonably guarantee that discovery has quiesced. | |
231 | * Post FDISC LOGO, the driver must wait until its SAN teardown is | |
232 | * complete and all resources recovered before allowing | |
233 | * cleanup. | |
234 | * | |
235 | * This routine does not require any locks held. | |
236 | **/ | |
237 | static void lpfc_discovery_wait(struct lpfc_vport *vport) | |
238 | { | |
239 | struct lpfc_hba *phba = vport->phba; | |
240 | uint32_t wait_flags = 0; | |
241 | unsigned long wait_time_max; | |
242 | unsigned long start_time; | |
243 | ||
244 | wait_flags = FC_RSCN_MODE | FC_RSCN_DISCOVERY | FC_NLP_MORE | | |
245 | FC_RSCN_DEFERRED | FC_NDISC_ACTIVE | FC_DISC_TMO; | |
246 | ||
247 | /* | |
248 | * The time constraint on this loop is a balance between the | |
249 | * fabric RA_TOV value and dev_loss tmo. The driver's | |
250 | * devloss_tmo is 10 giving this loop a 3x multiplier minimally. | |
251 | */ | |
252 | wait_time_max = msecs_to_jiffies(((phba->fc_ratov * 3) + 3) * 1000); | |
253 | wait_time_max += jiffies; | |
254 | start_time = jiffies; | |
255 | while (time_before(jiffies, wait_time_max)) { | |
256 | if ((vport->num_disc_nodes > 0) || | |
257 | (vport->fc_flag & wait_flags) || | |
258 | ((vport->port_state > LPFC_VPORT_FAILED) && | |
259 | (vport->port_state < LPFC_VPORT_READY))) { | |
21e9a0a5 | 260 | lpfc_printf_vlog(vport, KERN_INFO, LOG_VPORT, |
90160e01 | 261 | "1833 Vport discovery quiesce Wait:" |
21e9a0a5 | 262 | " state x%x fc_flags x%x" |
90160e01 JS |
263 | " num_nodes x%x, waiting 1000 msecs" |
264 | " total wait msecs x%x\n", | |
21e9a0a5 JS |
265 | vport->port_state, vport->fc_flag, |
266 | vport->num_disc_nodes, | |
90160e01 JS |
267 | jiffies_to_msecs(jiffies - start_time)); |
268 | msleep(1000); | |
269 | } else { | |
270 | /* Base case. Wait variants satisfied. Break out */ | |
21e9a0a5 | 271 | lpfc_printf_vlog(vport, KERN_INFO, LOG_VPORT, |
90160e01 | 272 | "1834 Vport discovery quiesced:" |
21e9a0a5 | 273 | " state x%x fc_flags x%x" |
90160e01 | 274 | " wait msecs x%x\n", |
21e9a0a5 | 275 | vport->port_state, vport->fc_flag, |
90160e01 JS |
276 | jiffies_to_msecs(jiffies |
277 | - start_time)); | |
278 | break; | |
279 | } | |
280 | } | |
281 | ||
282 | if (time_after(jiffies, wait_time_max)) | |
21e9a0a5 | 283 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
90160e01 | 284 | "1835 Vport discovery quiesce failed:" |
21e9a0a5 JS |
285 | " state x%x fc_flags x%x wait msecs x%x\n", |
286 | vport->port_state, vport->fc_flag, | |
90160e01 JS |
287 | jiffies_to_msecs(jiffies - start_time)); |
288 | } | |
289 | ||
92d7f7b0 JS |
290 | int |
291 | lpfc_vport_create(struct fc_vport *fc_vport, bool disable) | |
292 | { | |
293 | struct lpfc_nodelist *ndlp; | |
3de2a653 JS |
294 | struct Scsi_Host *shost = fc_vport->shost; |
295 | struct lpfc_vport *pport = (struct lpfc_vport *) shost->hostdata; | |
92d7f7b0 JS |
296 | struct lpfc_hba *phba = pport->phba; |
297 | struct lpfc_vport *vport = NULL; | |
298 | int instance; | |
299 | int vpi; | |
300 | int rc = VPORT_ERROR; | |
98c9ea5c | 301 | int status; |
92d7f7b0 | 302 | |
eada272d | 303 | if ((phba->sli_rev < 3) || !(phba->cfg_enable_npiv)) { |
92d7f7b0 | 304 | lpfc_printf_log(phba, KERN_ERR, LOG_VPORT, |
e8b62011 | 305 | "1808 Create VPORT failed: " |
92d7f7b0 | 306 | "NPIV is not enabled: SLImode:%d\n", |
e8b62011 | 307 | phba->sli_rev); |
92d7f7b0 JS |
308 | rc = VPORT_INVAL; |
309 | goto error_out; | |
310 | } | |
311 | ||
312 | vpi = lpfc_alloc_vpi(phba); | |
313 | if (vpi == 0) { | |
314 | lpfc_printf_log(phba, KERN_ERR, LOG_VPORT, | |
e8b62011 | 315 | "1809 Create VPORT failed: " |
92d7f7b0 | 316 | "Max VPORTs (%d) exceeded\n", |
e8b62011 | 317 | phba->max_vpi); |
92d7f7b0 JS |
318 | rc = VPORT_NORESOURCES; |
319 | goto error_out; | |
320 | } | |
321 | ||
92d7f7b0 JS |
322 | /* Assign an unused board number */ |
323 | if ((instance = lpfc_get_instance()) < 0) { | |
324 | lpfc_printf_log(phba, KERN_ERR, LOG_VPORT, | |
e8b62011 JS |
325 | "1810 Create VPORT failed: Cannot get " |
326 | "instance number\n"); | |
92d7f7b0 JS |
327 | lpfc_free_vpi(phba, vpi); |
328 | rc = VPORT_NORESOURCES; | |
329 | goto error_out; | |
330 | } | |
331 | ||
3de2a653 | 332 | vport = lpfc_create_port(phba, instance, &fc_vport->dev); |
92d7f7b0 JS |
333 | if (!vport) { |
334 | lpfc_printf_log(phba, KERN_ERR, LOG_VPORT, | |
e8b62011 | 335 | "1811 Create VPORT failed: vpi x%x\n", vpi); |
92d7f7b0 JS |
336 | lpfc_free_vpi(phba, vpi); |
337 | rc = VPORT_NORESOURCES; | |
338 | goto error_out; | |
339 | } | |
340 | ||
341 | vport->vpi = vpi; | |
858c9f6c JS |
342 | lpfc_debugfs_initialize(vport); |
343 | ||
98c9ea5c JS |
344 | if ((status = lpfc_vport_sparm(phba, vport))) { |
345 | if (status == -EINTR) { | |
346 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, | |
347 | "1831 Create VPORT Interrupted.\n"); | |
348 | rc = VPORT_ERROR; | |
349 | } else { | |
350 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, | |
351 | "1813 Create VPORT failed. " | |
352 | "Cannot get sparam\n"); | |
353 | rc = VPORT_NORESOURCES; | |
354 | } | |
92d7f7b0 JS |
355 | lpfc_free_vpi(phba, vpi); |
356 | destroy_port(vport); | |
92d7f7b0 JS |
357 | goto error_out; |
358 | } | |
359 | ||
1c6834a7 JS |
360 | u64_to_wwn(fc_vport->node_name, vport->fc_nodename.u.wwn); |
361 | u64_to_wwn(fc_vport->port_name, vport->fc_portname.u.wwn); | |
92d7f7b0 JS |
362 | |
363 | memcpy(&vport->fc_sparam.portName, vport->fc_portname.u.wwn, 8); | |
364 | memcpy(&vport->fc_sparam.nodeName, vport->fc_nodename.u.wwn, 8); | |
365 | ||
366 | if (!lpfc_valid_wwn_format(phba, &vport->fc_sparam.nodeName, "WWNN") || | |
367 | !lpfc_valid_wwn_format(phba, &vport->fc_sparam.portName, "WWPN")) { | |
e8b62011 JS |
368 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
369 | "1821 Create VPORT failed. " | |
370 | "Invalid WWN format\n"); | |
92d7f7b0 JS |
371 | lpfc_free_vpi(phba, vpi); |
372 | destroy_port(vport); | |
373 | rc = VPORT_INVAL; | |
374 | goto error_out; | |
375 | } | |
376 | ||
377 | if (!lpfc_unique_wwpn(phba, vport)) { | |
e8b62011 JS |
378 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
379 | "1823 Create VPORT failed. " | |
380 | "Duplicate WWN on HBA\n"); | |
92d7f7b0 JS |
381 | lpfc_free_vpi(phba, vpi); |
382 | destroy_port(vport); | |
383 | rc = VPORT_INVAL; | |
384 | goto error_out; | |
385 | } | |
386 | ||
eada272d JS |
387 | /* Create binary sysfs attribute for vport */ |
388 | lpfc_alloc_sysfs_attr(vport); | |
389 | ||
92d7f7b0 JS |
390 | *(struct lpfc_vport **)fc_vport->dd_data = vport; |
391 | vport->fc_vport = fc_vport; | |
392 | ||
1c6834a7 JS |
393 | /* |
394 | * In SLI4, the vpi must be activated before it can be used | |
395 | * by the port. | |
396 | */ | |
397 | if ((phba->sli_rev == LPFC_SLI_REV4) && | |
695a814e | 398 | (pport->fc_flag & FC_VFI_REGISTERED)) { |
1c6834a7 JS |
399 | rc = lpfc_sli4_init_vpi(phba, vpi); |
400 | if (rc) { | |
401 | lpfc_printf_log(phba, KERN_ERR, LOG_VPORT, | |
402 | "1838 Failed to INIT_VPI on vpi %d " | |
403 | "status %d\n", vpi, rc); | |
404 | rc = VPORT_NORESOURCES; | |
405 | lpfc_free_vpi(phba, vpi); | |
406 | goto error_out; | |
407 | } | |
408 | } else if (phba->sli_rev == LPFC_SLI_REV4) { | |
409 | /* | |
410 | * Driver cannot INIT_VPI now. Set the flags to | |
411 | * init_vpi when reg_vfi complete. | |
412 | */ | |
413 | vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; | |
414 | lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); | |
415 | rc = VPORT_OK; | |
416 | goto out; | |
417 | } | |
418 | ||
92d7f7b0 | 419 | if ((phba->link_state < LPFC_LINK_UP) || |
1c6834a7 | 420 | (pport->port_state < LPFC_FABRIC_CFG_LINK) || |
92d7f7b0 JS |
421 | (phba->fc_topology == TOPOLOGY_LOOP)) { |
422 | lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); | |
423 | rc = VPORT_OK; | |
424 | goto out; | |
425 | } | |
426 | ||
427 | if (disable) { | |
eada272d | 428 | lpfc_vport_set_state(vport, FC_VPORT_DISABLED); |
92d7f7b0 JS |
429 | rc = VPORT_OK; |
430 | goto out; | |
431 | } | |
432 | ||
433 | /* Use the Physical nodes Fabric NDLP to determine if the link is | |
434 | * up and ready to FDISC. | |
435 | */ | |
436 | ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); | |
e47c9093 JS |
437 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
438 | ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) { | |
858c9f6c JS |
439 | if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) { |
440 | lpfc_set_disctmo(vport); | |
441 | lpfc_initial_fdisc(vport); | |
442 | } else { | |
443 | lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); | |
e8b62011 JS |
444 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
445 | "0262 No NPIV Fabric support\n"); | |
858c9f6c | 446 | } |
92d7f7b0 JS |
447 | } else { |
448 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
449 | } | |
450 | rc = VPORT_OK; | |
451 | ||
452 | out: | |
a58cbd52 JS |
453 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
454 | "1825 Vport Created.\n"); | |
92d7f7b0 JS |
455 | lpfc_host_attrib_init(lpfc_shost_from_vport(vport)); |
456 | error_out: | |
457 | return rc; | |
458 | } | |
459 | ||
311464ec | 460 | static int |
92d7f7b0 JS |
461 | disable_vport(struct fc_vport *fc_vport) |
462 | { | |
463 | struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; | |
464 | struct lpfc_hba *phba = vport->phba; | |
465 | struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL; | |
466 | long timeout; | |
467 | ||
468 | ndlp = lpfc_findnode_did(vport, Fabric_DID); | |
e47c9093 JS |
469 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) |
470 | && phba->link_state >= LPFC_LINK_UP) { | |
92d7f7b0 JS |
471 | vport->unreg_vpi_cmpl = VPORT_INVAL; |
472 | timeout = msecs_to_jiffies(phba->fc_ratov * 2000); | |
473 | if (!lpfc_issue_els_npiv_logo(vport, ndlp)) | |
474 | while (vport->unreg_vpi_cmpl == VPORT_INVAL && timeout) | |
475 | timeout = schedule_timeout(timeout); | |
476 | } | |
477 | ||
478 | lpfc_sli_host_down(vport); | |
479 | ||
480 | /* Mark all nodes for discovery so we can remove them by | |
481 | * calling lpfc_cleanup_rpis(vport, 1) | |
482 | */ | |
483 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { | |
e47c9093 JS |
484 | if (!NLP_CHK_NODE_ACT(ndlp)) |
485 | continue; | |
92d7f7b0 JS |
486 | if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) |
487 | continue; | |
488 | lpfc_disc_state_machine(vport, ndlp, NULL, | |
489 | NLP_EVT_DEVICE_RECOVERY); | |
490 | } | |
491 | lpfc_cleanup_rpis(vport, 1); | |
492 | ||
493 | lpfc_stop_vport_timers(vport); | |
494 | lpfc_unreg_all_rpis(vport); | |
495 | lpfc_unreg_default_rpis(vport); | |
496 | /* | |
497 | * Completion of unreg_vpi (lpfc_mbx_cmpl_unreg_vpi) does the | |
498 | * scsi_host_put() to release the vport. | |
499 | */ | |
500 | lpfc_mbx_unreg_vpi(vport); | |
501 | ||
502 | lpfc_vport_set_state(vport, FC_VPORT_DISABLED); | |
a58cbd52 JS |
503 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
504 | "1826 Vport Disabled.\n"); | |
92d7f7b0 JS |
505 | return VPORT_OK; |
506 | } | |
507 | ||
311464ec | 508 | static int |
92d7f7b0 JS |
509 | enable_vport(struct fc_vport *fc_vport) |
510 | { | |
511 | struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; | |
512 | struct lpfc_hba *phba = vport->phba; | |
513 | struct lpfc_nodelist *ndlp = NULL; | |
72100cc4 | 514 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
92d7f7b0 JS |
515 | |
516 | if ((phba->link_state < LPFC_LINK_UP) || | |
517 | (phba->fc_topology == TOPOLOGY_LOOP)) { | |
518 | lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); | |
519 | return VPORT_OK; | |
520 | } | |
521 | ||
72100cc4 | 522 | spin_lock_irq(shost->host_lock); |
92d7f7b0 JS |
523 | vport->load_flag |= FC_LOADING; |
524 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; | |
72100cc4 | 525 | spin_unlock_irq(shost->host_lock); |
92d7f7b0 JS |
526 | |
527 | /* Use the Physical nodes Fabric NDLP to determine if the link is | |
528 | * up and ready to FDISC. | |
529 | */ | |
530 | ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); | |
e47c9093 JS |
531 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) |
532 | && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) { | |
858c9f6c JS |
533 | if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) { |
534 | lpfc_set_disctmo(vport); | |
535 | lpfc_initial_fdisc(vport); | |
536 | } else { | |
537 | lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); | |
e8b62011 JS |
538 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
539 | "0264 No NPIV Fabric support\n"); | |
858c9f6c | 540 | } |
92d7f7b0 JS |
541 | } else { |
542 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
543 | } | |
a58cbd52 JS |
544 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
545 | "1827 Vport Enabled.\n"); | |
92d7f7b0 JS |
546 | return VPORT_OK; |
547 | } | |
548 | ||
549 | int | |
550 | lpfc_vport_disable(struct fc_vport *fc_vport, bool disable) | |
551 | { | |
552 | if (disable) | |
553 | return disable_vport(fc_vport); | |
554 | else | |
555 | return enable_vport(fc_vport); | |
556 | } | |
557 | ||
558 | ||
559 | int | |
560 | lpfc_vport_delete(struct fc_vport *fc_vport) | |
561 | { | |
562 | struct lpfc_nodelist *ndlp = NULL; | |
92d7f7b0 JS |
563 | struct Scsi_Host *shost = (struct Scsi_Host *) fc_vport->shost; |
564 | struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; | |
565 | struct lpfc_hba *phba = vport->phba; | |
566 | long timeout; | |
92d7f7b0 | 567 | |
51ef4c26 JS |
568 | if (vport->port_type == LPFC_PHYSICAL_PORT) { |
569 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, | |
570 | "1812 vport_delete failed: Cannot delete " | |
571 | "physical host\n"); | |
572 | return VPORT_ERROR; | |
573 | } | |
21e9a0a5 JS |
574 | |
575 | /* If the vport is a static vport fail the deletion. */ | |
576 | if ((vport->vport_flag & STATIC_VPORT) && | |
577 | !(phba->pport->load_flag & FC_UNLOADING)) { | |
578 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, | |
579 | "1837 vport_delete failed: Cannot delete " | |
580 | "static vport.\n"); | |
581 | return VPORT_ERROR; | |
582 | } | |
583 | ||
51ef4c26 JS |
584 | /* |
585 | * If we are not unloading the driver then prevent the vport_delete | |
586 | * from happening until after this vport's discovery is finished. | |
587 | */ | |
588 | if (!(phba->pport->load_flag & FC_UNLOADING)) { | |
589 | int check_count = 0; | |
590 | while (check_count < ((phba->fc_ratov * 3) + 3) && | |
591 | vport->port_state > LPFC_VPORT_FAILED && | |
592 | vport->port_state < LPFC_VPORT_READY) { | |
593 | check_count++; | |
594 | msleep(1000); | |
595 | } | |
596 | if (vport->port_state > LPFC_VPORT_FAILED && | |
597 | vport->port_state < LPFC_VPORT_READY) | |
598 | return -EAGAIN; | |
599 | } | |
92d7f7b0 JS |
600 | /* |
601 | * This is a bit of a mess. We want to ensure the shost doesn't get | |
602 | * torn down until we're done with the embedded lpfc_vport structure. | |
603 | * | |
604 | * Beyond holding a reference for this function, we also need a | |
605 | * reference for outstanding I/O requests we schedule during delete | |
606 | * processing. But once we scsi_remove_host() we can no longer obtain | |
607 | * a reference through scsi_host_get(). | |
608 | * | |
609 | * So we take two references here. We release one reference at the | |
610 | * bottom of the function -- after delinking the vport. And we | |
611 | * release the other at the completion of the unreg_vpi that get's | |
612 | * initiated after we've disposed of all other resources associated | |
613 | * with the port. | |
614 | */ | |
d7c255b2 | 615 | if (!scsi_host_get(shost)) |
92d7f7b0 | 616 | return VPORT_INVAL; |
d7c255b2 JS |
617 | if (!scsi_host_get(shost)) { |
618 | scsi_host_put(shost); | |
619 | return VPORT_INVAL; | |
620 | } | |
51ef4c26 | 621 | spin_lock_irq(&phba->hbalock); |
92d7f7b0 | 622 | vport->load_flag |= FC_UNLOADING; |
51ef4c26 | 623 | spin_unlock_irq(&phba->hbalock); |
eada272d JS |
624 | |
625 | lpfc_free_sysfs_attr(vport); | |
626 | ||
858c9f6c | 627 | lpfc_debugfs_terminate(vport); |
eada272d JS |
628 | |
629 | /* Remove FC host and then SCSI host with the vport */ | |
92d7f7b0 JS |
630 | fc_remove_host(lpfc_shost_from_vport(vport)); |
631 | scsi_remove_host(lpfc_shost_from_vport(vport)); | |
632 | ||
633 | ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); | |
e47c9093 JS |
634 | |
635 | /* In case of driver unload, we shall not perform fabric logo as the | |
636 | * worker thread already stopped at this stage and, in this case, we | |
637 | * can safely skip the fabric logo. | |
638 | */ | |
639 | if (phba->pport->load_flag & FC_UNLOADING) { | |
640 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && | |
641 | ndlp->nlp_state == NLP_STE_UNMAPPED_NODE && | |
642 | phba->link_state >= LPFC_LINK_UP) { | |
643 | /* First look for the Fabric ndlp */ | |
644 | ndlp = lpfc_findnode_did(vport, Fabric_DID); | |
645 | if (!ndlp) | |
646 | goto skip_logo; | |
647 | else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
648 | ndlp = lpfc_enable_node(vport, ndlp, | |
649 | NLP_STE_UNUSED_NODE); | |
650 | if (!ndlp) | |
651 | goto skip_logo; | |
652 | } | |
653 | /* Remove ndlp from vport npld list */ | |
654 | lpfc_dequeue_node(vport, ndlp); | |
655 | ||
656 | /* Indicate free memory when release */ | |
657 | spin_lock_irq(&phba->ndlp_lock); | |
658 | NLP_SET_FREE_REQ(ndlp); | |
659 | spin_unlock_irq(&phba->ndlp_lock); | |
660 | /* Kick off release ndlp when it can be safely done */ | |
661 | lpfc_nlp_put(ndlp); | |
662 | } | |
663 | goto skip_logo; | |
664 | } | |
665 | ||
666 | /* Otherwise, we will perform fabric logo as needed */ | |
667 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && | |
668 | ndlp->nlp_state == NLP_STE_UNMAPPED_NODE && | |
58da1ffb JS |
669 | phba->link_state >= LPFC_LINK_UP && |
670 | phba->fc_topology != TOPOLOGY_LOOP) { | |
7ee5d43e JS |
671 | if (vport->cfg_enable_da_id) { |
672 | timeout = msecs_to_jiffies(phba->fc_ratov * 2000); | |
673 | if (!lpfc_ns_cmd(vport, SLI_CTNS_DA_ID, 0, 0)) | |
674 | while (vport->ct_flags && timeout) | |
675 | timeout = schedule_timeout(timeout); | |
676 | else | |
677 | lpfc_printf_log(vport->phba, KERN_WARNING, | |
678 | LOG_VPORT, | |
679 | "1829 CT command failed to " | |
e4e74273 | 680 | "delete objects on fabric\n"); |
7ee5d43e | 681 | } |
92d7f7b0 JS |
682 | /* First look for the Fabric ndlp */ |
683 | ndlp = lpfc_findnode_did(vport, Fabric_DID); | |
684 | if (!ndlp) { | |
685 | /* Cannot find existing Fabric ndlp, allocate one */ | |
686 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
687 | if (!ndlp) | |
688 | goto skip_logo; | |
689 | lpfc_nlp_init(vport, ndlp, Fabric_DID); | |
e47c9093 JS |
690 | /* Indicate free memory when release */ |
691 | NLP_SET_FREE_REQ(ndlp); | |
92d7f7b0 | 692 | } else { |
e47c9093 JS |
693 | if (!NLP_CHK_NODE_ACT(ndlp)) |
694 | ndlp = lpfc_enable_node(vport, ndlp, | |
695 | NLP_STE_UNUSED_NODE); | |
696 | if (!ndlp) | |
697 | goto skip_logo; | |
698 | ||
699 | /* Remove ndlp from vport npld list */ | |
92d7f7b0 | 700 | lpfc_dequeue_node(vport, ndlp); |
e47c9093 JS |
701 | spin_lock_irq(&phba->ndlp_lock); |
702 | if (!NLP_CHK_FREE_REQ(ndlp)) | |
703 | /* Indicate free memory when release */ | |
704 | NLP_SET_FREE_REQ(ndlp); | |
705 | else { | |
706 | /* Skip this if ndlp is already in free mode */ | |
707 | spin_unlock_irq(&phba->ndlp_lock); | |
708 | goto skip_logo; | |
709 | } | |
710 | spin_unlock_irq(&phba->ndlp_lock); | |
92d7f7b0 | 711 | } |
1987807d | 712 | if (!(vport->vpi_state & LPFC_VPI_REGISTERED)) |
5ffc266e | 713 | goto skip_logo; |
92d7f7b0 JS |
714 | vport->unreg_vpi_cmpl = VPORT_INVAL; |
715 | timeout = msecs_to_jiffies(phba->fc_ratov * 2000); | |
716 | if (!lpfc_issue_els_npiv_logo(vport, ndlp)) | |
717 | while (vport->unreg_vpi_cmpl == VPORT_INVAL && timeout) | |
718 | timeout = schedule_timeout(timeout); | |
719 | } | |
720 | ||
90160e01 JS |
721 | if (!(phba->pport->load_flag & FC_UNLOADING)) |
722 | lpfc_discovery_wait(vport); | |
723 | ||
92d7f7b0 | 724 | skip_logo: |
87af33fe | 725 | lpfc_cleanup(vport); |
92d7f7b0 JS |
726 | lpfc_sli_host_down(vport); |
727 | ||
92d7f7b0 | 728 | lpfc_stop_vport_timers(vport); |
87af33fe JS |
729 | |
730 | if (!(phba->pport->load_flag & FC_UNLOADING)) { | |
e47c9093 | 731 | lpfc_unreg_all_rpis(vport); |
87af33fe JS |
732 | lpfc_unreg_default_rpis(vport); |
733 | /* | |
734 | * Completion of unreg_vpi (lpfc_mbx_cmpl_unreg_vpi) | |
735 | * does the scsi_host_put() to release the vport. | |
736 | */ | |
d7c255b2 JS |
737 | if (lpfc_mbx_unreg_vpi(vport)) |
738 | scsi_host_put(shost); | |
739 | } else | |
740 | scsi_host_put(shost); | |
92d7f7b0 JS |
741 | |
742 | lpfc_free_vpi(phba, vport->vpi); | |
743 | vport->work_port_events = 0; | |
744 | spin_lock_irq(&phba->hbalock); | |
745 | list_del_init(&vport->listentry); | |
746 | spin_unlock_irq(&phba->hbalock); | |
a58cbd52 JS |
747 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
748 | "1828 Vport Deleted.\n"); | |
92d7f7b0 | 749 | scsi_host_put(shost); |
51ef4c26 | 750 | return VPORT_OK; |
92d7f7b0 JS |
751 | } |
752 | ||
549e55cd JS |
753 | struct lpfc_vport ** |
754 | lpfc_create_vport_work_array(struct lpfc_hba *phba) | |
755 | { | |
756 | struct lpfc_vport *port_iterator; | |
757 | struct lpfc_vport **vports; | |
758 | int index = 0; | |
21e9a0a5 | 759 | vports = kzalloc((phba->max_vports + 1) * sizeof(struct lpfc_vport *), |
549e55cd JS |
760 | GFP_KERNEL); |
761 | if (vports == NULL) | |
762 | return NULL; | |
763 | spin_lock_irq(&phba->hbalock); | |
764 | list_for_each_entry(port_iterator, &phba->port_list, listentry) { | |
e8b62011 | 765 | if (!scsi_host_get(lpfc_shost_from_vport(port_iterator))) { |
51ef4c26 | 766 | lpfc_printf_vlog(port_iterator, KERN_WARNING, LOG_VPORT, |
e8b62011 JS |
767 | "1801 Create vport work array FAILED: " |
768 | "cannot do scsi_host_get\n"); | |
549e55cd | 769 | continue; |
e8b62011 | 770 | } |
549e55cd JS |
771 | vports[index++] = port_iterator; |
772 | } | |
773 | spin_unlock_irq(&phba->hbalock); | |
774 | return vports; | |
775 | } | |
776 | ||
777 | void | |
09372820 | 778 | lpfc_destroy_vport_work_array(struct lpfc_hba *phba, struct lpfc_vport **vports) |
549e55cd JS |
779 | { |
780 | int i; | |
781 | if (vports == NULL) | |
782 | return; | |
21e9a0a5 | 783 | for (i = 0; vports[i] != NULL && i <= phba->max_vports; i++) |
549e55cd JS |
784 | scsi_host_put(lpfc_shost_from_vport(vports[i])); |
785 | kfree(vports); | |
786 | } | |
ea2151b4 JS |
787 | |
788 | ||
789 | /** | |
3621a710 | 790 | * lpfc_vport_reset_stat_data - Reset the statistical data for the vport |
ea2151b4 JS |
791 | * @vport: Pointer to vport object. |
792 | * | |
793 | * This function resets the statistical data for the vport. This function | |
794 | * is called with the host_lock held | |
795 | **/ | |
796 | void | |
797 | lpfc_vport_reset_stat_data(struct lpfc_vport *vport) | |
798 | { | |
799 | struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL; | |
800 | ||
801 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { | |
802 | if (!NLP_CHK_NODE_ACT(ndlp)) | |
803 | continue; | |
804 | if (ndlp->lat_data) | |
805 | memset(ndlp->lat_data, 0, LPFC_MAX_BUCKET_COUNT * | |
806 | sizeof(struct lpfc_scsicmd_bkt)); | |
807 | } | |
808 | } | |
809 | ||
810 | ||
811 | /** | |
3621a710 | 812 | * lpfc_alloc_bucket - Allocate data buffer required for statistical data |
ea2151b4 JS |
813 | * @vport: Pointer to vport object. |
814 | * | |
815 | * This function allocates data buffer required for all the FC | |
816 | * nodes of the vport to collect statistical data. | |
817 | **/ | |
818 | void | |
819 | lpfc_alloc_bucket(struct lpfc_vport *vport) | |
820 | { | |
821 | struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL; | |
822 | ||
823 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { | |
824 | if (!NLP_CHK_NODE_ACT(ndlp)) | |
825 | continue; | |
826 | ||
827 | kfree(ndlp->lat_data); | |
828 | ndlp->lat_data = NULL; | |
829 | ||
830 | if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) { | |
831 | ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT, | |
832 | sizeof(struct lpfc_scsicmd_bkt), | |
833 | GFP_ATOMIC); | |
834 | ||
835 | if (!ndlp->lat_data) | |
836 | lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, | |
837 | "0287 lpfc_alloc_bucket failed to " | |
838 | "allocate statistical data buffer DID " | |
839 | "0x%x\n", ndlp->nlp_DID); | |
840 | } | |
841 | } | |
842 | } | |
843 | ||
844 | /** | |
3621a710 | 845 | * lpfc_free_bucket - Free data buffer required for statistical data |
ea2151b4 JS |
846 | * @vport: Pointer to vport object. |
847 | * | |
848 | * Th function frees statistical data buffer of all the FC | |
849 | * nodes of the vport. | |
850 | **/ | |
851 | void | |
852 | lpfc_free_bucket(struct lpfc_vport *vport) | |
853 | { | |
854 | struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL; | |
855 | ||
856 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { | |
857 | if (!NLP_CHK_NODE_ACT(ndlp)) | |
858 | continue; | |
859 | ||
860 | kfree(ndlp->lat_data); | |
861 | ndlp->lat_data = NULL; | |
862 | } | |
863 | } |