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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 | } | |
f4b4c68f | 124 | mb = &pmb->u.mb; |
92d7f7b0 JS |
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))) { | |
21e9a0a5 | 254 | lpfc_printf_vlog(vport, KERN_INFO, LOG_VPORT, |
90160e01 | 255 | "1833 Vport discovery quiesce Wait:" |
21e9a0a5 | 256 | " state x%x fc_flags x%x" |
90160e01 JS |
257 | " num_nodes x%x, waiting 1000 msecs" |
258 | " total wait msecs x%x\n", | |
21e9a0a5 JS |
259 | vport->port_state, vport->fc_flag, |
260 | vport->num_disc_nodes, | |
90160e01 JS |
261 | jiffies_to_msecs(jiffies - start_time)); |
262 | msleep(1000); | |
263 | } else { | |
264 | /* Base case. Wait variants satisfied. Break out */ | |
21e9a0a5 | 265 | lpfc_printf_vlog(vport, KERN_INFO, LOG_VPORT, |
90160e01 | 266 | "1834 Vport discovery quiesced:" |
21e9a0a5 | 267 | " state x%x fc_flags x%x" |
90160e01 | 268 | " wait msecs x%x\n", |
21e9a0a5 | 269 | vport->port_state, vport->fc_flag, |
90160e01 JS |
270 | jiffies_to_msecs(jiffies |
271 | - start_time)); | |
272 | break; | |
273 | } | |
274 | } | |
275 | ||
276 | if (time_after(jiffies, wait_time_max)) | |
21e9a0a5 | 277 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
90160e01 | 278 | "1835 Vport discovery quiesce failed:" |
21e9a0a5 JS |
279 | " state x%x fc_flags x%x wait msecs x%x\n", |
280 | vport->port_state, vport->fc_flag, | |
90160e01 JS |
281 | jiffies_to_msecs(jiffies - start_time)); |
282 | } | |
283 | ||
92d7f7b0 JS |
284 | int |
285 | lpfc_vport_create(struct fc_vport *fc_vport, bool disable) | |
286 | { | |
287 | struct lpfc_nodelist *ndlp; | |
3de2a653 JS |
288 | struct Scsi_Host *shost = fc_vport->shost; |
289 | struct lpfc_vport *pport = (struct lpfc_vport *) shost->hostdata; | |
92d7f7b0 JS |
290 | struct lpfc_hba *phba = pport->phba; |
291 | struct lpfc_vport *vport = NULL; | |
292 | int instance; | |
293 | int vpi; | |
294 | int rc = VPORT_ERROR; | |
98c9ea5c | 295 | int status; |
92d7f7b0 | 296 | |
eada272d | 297 | if ((phba->sli_rev < 3) || !(phba->cfg_enable_npiv)) { |
92d7f7b0 | 298 | lpfc_printf_log(phba, KERN_ERR, LOG_VPORT, |
e8b62011 | 299 | "1808 Create VPORT failed: " |
92d7f7b0 | 300 | "NPIV is not enabled: SLImode:%d\n", |
e8b62011 | 301 | phba->sli_rev); |
92d7f7b0 JS |
302 | rc = VPORT_INVAL; |
303 | goto error_out; | |
304 | } | |
305 | ||
306 | vpi = lpfc_alloc_vpi(phba); | |
307 | if (vpi == 0) { | |
308 | lpfc_printf_log(phba, KERN_ERR, LOG_VPORT, | |
e8b62011 | 309 | "1809 Create VPORT failed: " |
92d7f7b0 | 310 | "Max VPORTs (%d) exceeded\n", |
e8b62011 | 311 | phba->max_vpi); |
92d7f7b0 JS |
312 | rc = VPORT_NORESOURCES; |
313 | goto error_out; | |
314 | } | |
315 | ||
92d7f7b0 JS |
316 | /* Assign an unused board number */ |
317 | if ((instance = lpfc_get_instance()) < 0) { | |
318 | lpfc_printf_log(phba, KERN_ERR, LOG_VPORT, | |
e8b62011 JS |
319 | "1810 Create VPORT failed: Cannot get " |
320 | "instance number\n"); | |
92d7f7b0 JS |
321 | lpfc_free_vpi(phba, vpi); |
322 | rc = VPORT_NORESOURCES; | |
323 | goto error_out; | |
324 | } | |
325 | ||
3de2a653 | 326 | vport = lpfc_create_port(phba, instance, &fc_vport->dev); |
92d7f7b0 JS |
327 | if (!vport) { |
328 | lpfc_printf_log(phba, KERN_ERR, LOG_VPORT, | |
e8b62011 | 329 | "1811 Create VPORT failed: vpi x%x\n", vpi); |
92d7f7b0 JS |
330 | lpfc_free_vpi(phba, vpi); |
331 | rc = VPORT_NORESOURCES; | |
332 | goto error_out; | |
333 | } | |
334 | ||
335 | vport->vpi = vpi; | |
858c9f6c JS |
336 | lpfc_debugfs_initialize(vport); |
337 | ||
98c9ea5c JS |
338 | if ((status = lpfc_vport_sparm(phba, vport))) { |
339 | if (status == -EINTR) { | |
340 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, | |
341 | "1831 Create VPORT Interrupted.\n"); | |
342 | rc = VPORT_ERROR; | |
343 | } else { | |
344 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, | |
345 | "1813 Create VPORT failed. " | |
346 | "Cannot get sparam\n"); | |
347 | rc = VPORT_NORESOURCES; | |
348 | } | |
92d7f7b0 JS |
349 | lpfc_free_vpi(phba, vpi); |
350 | destroy_port(vport); | |
92d7f7b0 JS |
351 | goto error_out; |
352 | } | |
353 | ||
1c6834a7 JS |
354 | u64_to_wwn(fc_vport->node_name, vport->fc_nodename.u.wwn); |
355 | u64_to_wwn(fc_vport->port_name, vport->fc_portname.u.wwn); | |
92d7f7b0 JS |
356 | |
357 | memcpy(&vport->fc_sparam.portName, vport->fc_portname.u.wwn, 8); | |
358 | memcpy(&vport->fc_sparam.nodeName, vport->fc_nodename.u.wwn, 8); | |
359 | ||
360 | if (!lpfc_valid_wwn_format(phba, &vport->fc_sparam.nodeName, "WWNN") || | |
361 | !lpfc_valid_wwn_format(phba, &vport->fc_sparam.portName, "WWPN")) { | |
e8b62011 JS |
362 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
363 | "1821 Create VPORT failed. " | |
364 | "Invalid WWN format\n"); | |
92d7f7b0 JS |
365 | lpfc_free_vpi(phba, vpi); |
366 | destroy_port(vport); | |
367 | rc = VPORT_INVAL; | |
368 | goto error_out; | |
369 | } | |
370 | ||
371 | if (!lpfc_unique_wwpn(phba, vport)) { | |
e8b62011 JS |
372 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
373 | "1823 Create VPORT failed. " | |
374 | "Duplicate WWN on HBA\n"); | |
92d7f7b0 JS |
375 | lpfc_free_vpi(phba, vpi); |
376 | destroy_port(vport); | |
377 | rc = VPORT_INVAL; | |
378 | goto error_out; | |
379 | } | |
380 | ||
eada272d JS |
381 | /* Create binary sysfs attribute for vport */ |
382 | lpfc_alloc_sysfs_attr(vport); | |
383 | ||
92d7f7b0 JS |
384 | *(struct lpfc_vport **)fc_vport->dd_data = vport; |
385 | vport->fc_vport = fc_vport; | |
386 | ||
1c6834a7 JS |
387 | /* |
388 | * In SLI4, the vpi must be activated before it can be used | |
389 | * by the port. | |
390 | */ | |
391 | if ((phba->sli_rev == LPFC_SLI_REV4) && | |
695a814e | 392 | (pport->fc_flag & FC_VFI_REGISTERED)) { |
1c6834a7 JS |
393 | rc = lpfc_sli4_init_vpi(phba, vpi); |
394 | if (rc) { | |
395 | lpfc_printf_log(phba, KERN_ERR, LOG_VPORT, | |
396 | "1838 Failed to INIT_VPI on vpi %d " | |
397 | "status %d\n", vpi, rc); | |
398 | rc = VPORT_NORESOURCES; | |
399 | lpfc_free_vpi(phba, vpi); | |
400 | goto error_out; | |
401 | } | |
402 | } else if (phba->sli_rev == LPFC_SLI_REV4) { | |
403 | /* | |
404 | * Driver cannot INIT_VPI now. Set the flags to | |
405 | * init_vpi when reg_vfi complete. | |
406 | */ | |
407 | vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; | |
408 | lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); | |
409 | rc = VPORT_OK; | |
410 | goto out; | |
411 | } | |
412 | ||
92d7f7b0 | 413 | if ((phba->link_state < LPFC_LINK_UP) || |
1c6834a7 | 414 | (pport->port_state < LPFC_FABRIC_CFG_LINK) || |
92d7f7b0 JS |
415 | (phba->fc_topology == TOPOLOGY_LOOP)) { |
416 | lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); | |
417 | rc = VPORT_OK; | |
418 | goto out; | |
419 | } | |
420 | ||
421 | if (disable) { | |
eada272d | 422 | lpfc_vport_set_state(vport, FC_VPORT_DISABLED); |
92d7f7b0 JS |
423 | rc = VPORT_OK; |
424 | goto out; | |
425 | } | |
426 | ||
427 | /* Use the Physical nodes Fabric NDLP to determine if the link is | |
428 | * up and ready to FDISC. | |
429 | */ | |
430 | ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); | |
e47c9093 JS |
431 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
432 | ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) { | |
858c9f6c JS |
433 | if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) { |
434 | lpfc_set_disctmo(vport); | |
435 | lpfc_initial_fdisc(vport); | |
436 | } else { | |
437 | lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); | |
e8b62011 JS |
438 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
439 | "0262 No NPIV Fabric support\n"); | |
858c9f6c | 440 | } |
92d7f7b0 JS |
441 | } else { |
442 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
443 | } | |
444 | rc = VPORT_OK; | |
445 | ||
446 | out: | |
a58cbd52 JS |
447 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
448 | "1825 Vport Created.\n"); | |
92d7f7b0 JS |
449 | lpfc_host_attrib_init(lpfc_shost_from_vport(vport)); |
450 | error_out: | |
451 | return rc; | |
452 | } | |
453 | ||
311464ec | 454 | static int |
92d7f7b0 JS |
455 | disable_vport(struct fc_vport *fc_vport) |
456 | { | |
457 | struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; | |
458 | struct lpfc_hba *phba = vport->phba; | |
459 | struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL; | |
460 | long timeout; | |
461 | ||
462 | ndlp = lpfc_findnode_did(vport, Fabric_DID); | |
e47c9093 JS |
463 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) |
464 | && phba->link_state >= LPFC_LINK_UP) { | |
92d7f7b0 JS |
465 | vport->unreg_vpi_cmpl = VPORT_INVAL; |
466 | timeout = msecs_to_jiffies(phba->fc_ratov * 2000); | |
467 | if (!lpfc_issue_els_npiv_logo(vport, ndlp)) | |
468 | while (vport->unreg_vpi_cmpl == VPORT_INVAL && timeout) | |
469 | timeout = schedule_timeout(timeout); | |
470 | } | |
471 | ||
472 | lpfc_sli_host_down(vport); | |
473 | ||
474 | /* Mark all nodes for discovery so we can remove them by | |
475 | * calling lpfc_cleanup_rpis(vport, 1) | |
476 | */ | |
477 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { | |
e47c9093 JS |
478 | if (!NLP_CHK_NODE_ACT(ndlp)) |
479 | continue; | |
92d7f7b0 JS |
480 | if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) |
481 | continue; | |
482 | lpfc_disc_state_machine(vport, ndlp, NULL, | |
483 | NLP_EVT_DEVICE_RECOVERY); | |
484 | } | |
485 | lpfc_cleanup_rpis(vport, 1); | |
486 | ||
487 | lpfc_stop_vport_timers(vport); | |
488 | lpfc_unreg_all_rpis(vport); | |
489 | lpfc_unreg_default_rpis(vport); | |
490 | /* | |
491 | * Completion of unreg_vpi (lpfc_mbx_cmpl_unreg_vpi) does the | |
492 | * scsi_host_put() to release the vport. | |
493 | */ | |
494 | lpfc_mbx_unreg_vpi(vport); | |
495 | ||
496 | lpfc_vport_set_state(vport, FC_VPORT_DISABLED); | |
a58cbd52 JS |
497 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
498 | "1826 Vport Disabled.\n"); | |
92d7f7b0 JS |
499 | return VPORT_OK; |
500 | } | |
501 | ||
311464ec | 502 | static int |
92d7f7b0 JS |
503 | enable_vport(struct fc_vport *fc_vport) |
504 | { | |
505 | struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; | |
506 | struct lpfc_hba *phba = vport->phba; | |
507 | struct lpfc_nodelist *ndlp = NULL; | |
508 | ||
509 | if ((phba->link_state < LPFC_LINK_UP) || | |
510 | (phba->fc_topology == TOPOLOGY_LOOP)) { | |
511 | lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); | |
512 | return VPORT_OK; | |
513 | } | |
514 | ||
97957244 | 515 | spin_lock_irq(&phba->hbalock); |
92d7f7b0 JS |
516 | vport->load_flag |= FC_LOADING; |
517 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; | |
97957244 | 518 | spin_unlock_irq(&phba->hbalock); |
92d7f7b0 JS |
519 | |
520 | /* Use the Physical nodes Fabric NDLP to determine if the link is | |
521 | * up and ready to FDISC. | |
522 | */ | |
523 | ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); | |
e47c9093 JS |
524 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) |
525 | && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) { | |
858c9f6c JS |
526 | if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) { |
527 | lpfc_set_disctmo(vport); | |
528 | lpfc_initial_fdisc(vport); | |
529 | } else { | |
530 | lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); | |
e8b62011 JS |
531 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
532 | "0264 No NPIV Fabric support\n"); | |
858c9f6c | 533 | } |
92d7f7b0 JS |
534 | } else { |
535 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
536 | } | |
a58cbd52 JS |
537 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
538 | "1827 Vport Enabled.\n"); | |
92d7f7b0 JS |
539 | return VPORT_OK; |
540 | } | |
541 | ||
542 | int | |
543 | lpfc_vport_disable(struct fc_vport *fc_vport, bool disable) | |
544 | { | |
545 | if (disable) | |
546 | return disable_vport(fc_vport); | |
547 | else | |
548 | return enable_vport(fc_vport); | |
549 | } | |
550 | ||
551 | ||
552 | int | |
553 | lpfc_vport_delete(struct fc_vport *fc_vport) | |
554 | { | |
555 | struct lpfc_nodelist *ndlp = NULL; | |
92d7f7b0 JS |
556 | struct Scsi_Host *shost = (struct Scsi_Host *) fc_vport->shost; |
557 | struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; | |
558 | struct lpfc_hba *phba = vport->phba; | |
559 | long timeout; | |
92d7f7b0 | 560 | |
51ef4c26 JS |
561 | if (vport->port_type == LPFC_PHYSICAL_PORT) { |
562 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, | |
563 | "1812 vport_delete failed: Cannot delete " | |
564 | "physical host\n"); | |
565 | return VPORT_ERROR; | |
566 | } | |
21e9a0a5 JS |
567 | |
568 | /* If the vport is a static vport fail the deletion. */ | |
569 | if ((vport->vport_flag & STATIC_VPORT) && | |
570 | !(phba->pport->load_flag & FC_UNLOADING)) { | |
571 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, | |
572 | "1837 vport_delete failed: Cannot delete " | |
573 | "static vport.\n"); | |
574 | return VPORT_ERROR; | |
575 | } | |
576 | ||
51ef4c26 JS |
577 | /* |
578 | * If we are not unloading the driver then prevent the vport_delete | |
579 | * from happening until after this vport's discovery is finished. | |
580 | */ | |
581 | if (!(phba->pport->load_flag & FC_UNLOADING)) { | |
582 | int check_count = 0; | |
583 | while (check_count < ((phba->fc_ratov * 3) + 3) && | |
584 | vport->port_state > LPFC_VPORT_FAILED && | |
585 | vport->port_state < LPFC_VPORT_READY) { | |
586 | check_count++; | |
587 | msleep(1000); | |
588 | } | |
589 | if (vport->port_state > LPFC_VPORT_FAILED && | |
590 | vport->port_state < LPFC_VPORT_READY) | |
591 | return -EAGAIN; | |
592 | } | |
92d7f7b0 JS |
593 | /* |
594 | * This is a bit of a mess. We want to ensure the shost doesn't get | |
595 | * torn down until we're done with the embedded lpfc_vport structure. | |
596 | * | |
597 | * Beyond holding a reference for this function, we also need a | |
598 | * reference for outstanding I/O requests we schedule during delete | |
599 | * processing. But once we scsi_remove_host() we can no longer obtain | |
600 | * a reference through scsi_host_get(). | |
601 | * | |
602 | * So we take two references here. We release one reference at the | |
603 | * bottom of the function -- after delinking the vport. And we | |
604 | * release the other at the completion of the unreg_vpi that get's | |
605 | * initiated after we've disposed of all other resources associated | |
606 | * with the port. | |
607 | */ | |
d7c255b2 | 608 | if (!scsi_host_get(shost)) |
92d7f7b0 | 609 | return VPORT_INVAL; |
d7c255b2 JS |
610 | if (!scsi_host_get(shost)) { |
611 | scsi_host_put(shost); | |
612 | return VPORT_INVAL; | |
613 | } | |
51ef4c26 | 614 | spin_lock_irq(&phba->hbalock); |
92d7f7b0 | 615 | vport->load_flag |= FC_UNLOADING; |
51ef4c26 | 616 | spin_unlock_irq(&phba->hbalock); |
eada272d JS |
617 | |
618 | lpfc_free_sysfs_attr(vport); | |
619 | ||
858c9f6c | 620 | lpfc_debugfs_terminate(vport); |
eada272d JS |
621 | |
622 | /* Remove FC host and then SCSI host with the vport */ | |
92d7f7b0 JS |
623 | fc_remove_host(lpfc_shost_from_vport(vport)); |
624 | scsi_remove_host(lpfc_shost_from_vport(vport)); | |
625 | ||
626 | ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); | |
e47c9093 JS |
627 | |
628 | /* In case of driver unload, we shall not perform fabric logo as the | |
629 | * worker thread already stopped at this stage and, in this case, we | |
630 | * can safely skip the fabric logo. | |
631 | */ | |
632 | if (phba->pport->load_flag & FC_UNLOADING) { | |
633 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && | |
634 | ndlp->nlp_state == NLP_STE_UNMAPPED_NODE && | |
635 | phba->link_state >= LPFC_LINK_UP) { | |
636 | /* First look for the Fabric ndlp */ | |
637 | ndlp = lpfc_findnode_did(vport, Fabric_DID); | |
638 | if (!ndlp) | |
639 | goto skip_logo; | |
640 | else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
641 | ndlp = lpfc_enable_node(vport, ndlp, | |
642 | NLP_STE_UNUSED_NODE); | |
643 | if (!ndlp) | |
644 | goto skip_logo; | |
645 | } | |
646 | /* Remove ndlp from vport npld list */ | |
647 | lpfc_dequeue_node(vport, ndlp); | |
648 | ||
649 | /* Indicate free memory when release */ | |
650 | spin_lock_irq(&phba->ndlp_lock); | |
651 | NLP_SET_FREE_REQ(ndlp); | |
652 | spin_unlock_irq(&phba->ndlp_lock); | |
653 | /* Kick off release ndlp when it can be safely done */ | |
654 | lpfc_nlp_put(ndlp); | |
655 | } | |
656 | goto skip_logo; | |
657 | } | |
658 | ||
659 | /* Otherwise, we will perform fabric logo as needed */ | |
660 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && | |
661 | ndlp->nlp_state == NLP_STE_UNMAPPED_NODE && | |
58da1ffb JS |
662 | phba->link_state >= LPFC_LINK_UP && |
663 | phba->fc_topology != TOPOLOGY_LOOP) { | |
7ee5d43e JS |
664 | if (vport->cfg_enable_da_id) { |
665 | timeout = msecs_to_jiffies(phba->fc_ratov * 2000); | |
666 | if (!lpfc_ns_cmd(vport, SLI_CTNS_DA_ID, 0, 0)) | |
667 | while (vport->ct_flags && timeout) | |
668 | timeout = schedule_timeout(timeout); | |
669 | else | |
670 | lpfc_printf_log(vport->phba, KERN_WARNING, | |
671 | LOG_VPORT, | |
672 | "1829 CT command failed to " | |
e4e74273 | 673 | "delete objects on fabric\n"); |
7ee5d43e | 674 | } |
92d7f7b0 JS |
675 | /* First look for the Fabric ndlp */ |
676 | ndlp = lpfc_findnode_did(vport, Fabric_DID); | |
677 | if (!ndlp) { | |
678 | /* Cannot find existing Fabric ndlp, allocate one */ | |
679 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
680 | if (!ndlp) | |
681 | goto skip_logo; | |
682 | lpfc_nlp_init(vport, ndlp, Fabric_DID); | |
e47c9093 JS |
683 | /* Indicate free memory when release */ |
684 | NLP_SET_FREE_REQ(ndlp); | |
92d7f7b0 | 685 | } else { |
e47c9093 JS |
686 | if (!NLP_CHK_NODE_ACT(ndlp)) |
687 | ndlp = lpfc_enable_node(vport, ndlp, | |
688 | NLP_STE_UNUSED_NODE); | |
689 | if (!ndlp) | |
690 | goto skip_logo; | |
691 | ||
692 | /* Remove ndlp from vport npld list */ | |
92d7f7b0 | 693 | lpfc_dequeue_node(vport, ndlp); |
e47c9093 JS |
694 | spin_lock_irq(&phba->ndlp_lock); |
695 | if (!NLP_CHK_FREE_REQ(ndlp)) | |
696 | /* Indicate free memory when release */ | |
697 | NLP_SET_FREE_REQ(ndlp); | |
698 | else { | |
699 | /* Skip this if ndlp is already in free mode */ | |
700 | spin_unlock_irq(&phba->ndlp_lock); | |
701 | goto skip_logo; | |
702 | } | |
703 | spin_unlock_irq(&phba->ndlp_lock); | |
92d7f7b0 | 704 | } |
1987807d | 705 | if (!(vport->vpi_state & LPFC_VPI_REGISTERED)) |
5ffc266e | 706 | goto skip_logo; |
92d7f7b0 JS |
707 | vport->unreg_vpi_cmpl = VPORT_INVAL; |
708 | timeout = msecs_to_jiffies(phba->fc_ratov * 2000); | |
709 | if (!lpfc_issue_els_npiv_logo(vport, ndlp)) | |
710 | while (vport->unreg_vpi_cmpl == VPORT_INVAL && timeout) | |
711 | timeout = schedule_timeout(timeout); | |
712 | } | |
713 | ||
90160e01 JS |
714 | if (!(phba->pport->load_flag & FC_UNLOADING)) |
715 | lpfc_discovery_wait(vport); | |
716 | ||
92d7f7b0 | 717 | skip_logo: |
87af33fe | 718 | lpfc_cleanup(vport); |
92d7f7b0 JS |
719 | lpfc_sli_host_down(vport); |
720 | ||
92d7f7b0 | 721 | lpfc_stop_vport_timers(vport); |
87af33fe JS |
722 | |
723 | if (!(phba->pport->load_flag & FC_UNLOADING)) { | |
e47c9093 | 724 | lpfc_unreg_all_rpis(vport); |
87af33fe JS |
725 | lpfc_unreg_default_rpis(vport); |
726 | /* | |
727 | * Completion of unreg_vpi (lpfc_mbx_cmpl_unreg_vpi) | |
728 | * does the scsi_host_put() to release the vport. | |
729 | */ | |
d7c255b2 JS |
730 | if (lpfc_mbx_unreg_vpi(vport)) |
731 | scsi_host_put(shost); | |
732 | } else | |
733 | scsi_host_put(shost); | |
92d7f7b0 JS |
734 | |
735 | lpfc_free_vpi(phba, vport->vpi); | |
736 | vport->work_port_events = 0; | |
737 | spin_lock_irq(&phba->hbalock); | |
738 | list_del_init(&vport->listentry); | |
739 | spin_unlock_irq(&phba->hbalock); | |
a58cbd52 JS |
740 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
741 | "1828 Vport Deleted.\n"); | |
92d7f7b0 | 742 | scsi_host_put(shost); |
51ef4c26 | 743 | return VPORT_OK; |
92d7f7b0 JS |
744 | } |
745 | ||
549e55cd JS |
746 | struct lpfc_vport ** |
747 | lpfc_create_vport_work_array(struct lpfc_hba *phba) | |
748 | { | |
749 | struct lpfc_vport *port_iterator; | |
750 | struct lpfc_vport **vports; | |
751 | int index = 0; | |
21e9a0a5 | 752 | vports = kzalloc((phba->max_vports + 1) * sizeof(struct lpfc_vport *), |
549e55cd JS |
753 | GFP_KERNEL); |
754 | if (vports == NULL) | |
755 | return NULL; | |
756 | spin_lock_irq(&phba->hbalock); | |
757 | list_for_each_entry(port_iterator, &phba->port_list, listentry) { | |
e8b62011 | 758 | if (!scsi_host_get(lpfc_shost_from_vport(port_iterator))) { |
51ef4c26 | 759 | lpfc_printf_vlog(port_iterator, KERN_WARNING, LOG_VPORT, |
e8b62011 JS |
760 | "1801 Create vport work array FAILED: " |
761 | "cannot do scsi_host_get\n"); | |
549e55cd | 762 | continue; |
e8b62011 | 763 | } |
549e55cd JS |
764 | vports[index++] = port_iterator; |
765 | } | |
766 | spin_unlock_irq(&phba->hbalock); | |
767 | return vports; | |
768 | } | |
769 | ||
770 | void | |
09372820 | 771 | lpfc_destroy_vport_work_array(struct lpfc_hba *phba, struct lpfc_vport **vports) |
549e55cd JS |
772 | { |
773 | int i; | |
774 | if (vports == NULL) | |
775 | return; | |
21e9a0a5 | 776 | for (i = 0; vports[i] != NULL && i <= phba->max_vports; i++) |
549e55cd JS |
777 | scsi_host_put(lpfc_shost_from_vport(vports[i])); |
778 | kfree(vports); | |
779 | } | |
ea2151b4 JS |
780 | |
781 | ||
782 | /** | |
3621a710 | 783 | * lpfc_vport_reset_stat_data - Reset the statistical data for the vport |
ea2151b4 JS |
784 | * @vport: Pointer to vport object. |
785 | * | |
786 | * This function resets the statistical data for the vport. This function | |
787 | * is called with the host_lock held | |
788 | **/ | |
789 | void | |
790 | lpfc_vport_reset_stat_data(struct lpfc_vport *vport) | |
791 | { | |
792 | struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL; | |
793 | ||
794 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { | |
795 | if (!NLP_CHK_NODE_ACT(ndlp)) | |
796 | continue; | |
797 | if (ndlp->lat_data) | |
798 | memset(ndlp->lat_data, 0, LPFC_MAX_BUCKET_COUNT * | |
799 | sizeof(struct lpfc_scsicmd_bkt)); | |
800 | } | |
801 | } | |
802 | ||
803 | ||
804 | /** | |
3621a710 | 805 | * lpfc_alloc_bucket - Allocate data buffer required for statistical data |
ea2151b4 JS |
806 | * @vport: Pointer to vport object. |
807 | * | |
808 | * This function allocates data buffer required for all the FC | |
809 | * nodes of the vport to collect statistical data. | |
810 | **/ | |
811 | void | |
812 | lpfc_alloc_bucket(struct lpfc_vport *vport) | |
813 | { | |
814 | struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL; | |
815 | ||
816 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { | |
817 | if (!NLP_CHK_NODE_ACT(ndlp)) | |
818 | continue; | |
819 | ||
820 | kfree(ndlp->lat_data); | |
821 | ndlp->lat_data = NULL; | |
822 | ||
823 | if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) { | |
824 | ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT, | |
825 | sizeof(struct lpfc_scsicmd_bkt), | |
826 | GFP_ATOMIC); | |
827 | ||
828 | if (!ndlp->lat_data) | |
829 | lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, | |
830 | "0287 lpfc_alloc_bucket failed to " | |
831 | "allocate statistical data buffer DID " | |
832 | "0x%x\n", ndlp->nlp_DID); | |
833 | } | |
834 | } | |
835 | } | |
836 | ||
837 | /** | |
3621a710 | 838 | * lpfc_free_bucket - Free data buffer required for statistical data |
ea2151b4 JS |
839 | * @vport: Pointer to vport object. |
840 | * | |
841 | * Th function frees statistical data buffer of all the FC | |
842 | * nodes of the vport. | |
843 | **/ | |
844 | void | |
845 | lpfc_free_bucket(struct lpfc_vport *vport) | |
846 | { | |
847 | struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL; | |
848 | ||
849 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { | |
850 | if (!NLP_CHK_NODE_ACT(ndlp)) | |
851 | continue; | |
852 | ||
853 | kfree(ndlp->lat_data); | |
854 | ndlp->lat_data = NULL; | |
855 | } | |
856 | } |