1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
23 * Copyright 2016 Nexenta Systems, Inc. All rights reserved.
24 * Copyright 2020 RackTop Systems, Inc.
25 */
26
27 #include <sys/conf.h>
28 #include <sys/file.h>
29 #include <sys/ddi.h>
30 #include <sys/sunddi.h>
31 #include <sys/modctl.h>
32 #include <sys/scsi/scsi.h>
33 #include <sys/scsi/impl/scsi_reset_notify.h>
34 #include <sys/disp.h>
35 #include <sys/byteorder.h>
36 #include <sys/varargs.h>
37 #include <sys/atomic.h>
38 #include <sys/sdt.h>
39
40 #include <sys/stmf.h>
41 #include <sys/stmf_ioctl.h>
42 #include <sys/portif.h>
43 #include <sys/fct.h>
44 #include <sys/fctio.h>
45
46 #include "fct_impl.h"
47 #include "discovery.h"
48
49 static int fct_attach(dev_info_t *dip, ddi_attach_cmd_t cmd);
50 static int fct_detach(dev_info_t *dip, ddi_detach_cmd_t cmd);
51 static int fct_getinfo(dev_info_t *dip, ddi_info_cmd_t cmd, void *arg,
52 void **result);
53 static int fct_open(dev_t *devp, int flag, int otype, cred_t *credp);
54 static int fct_close(dev_t dev, int flag, int otype, cred_t *credp);
55 static int fct_ioctl(dev_t dev, int cmd, intptr_t data, int mode,
56 cred_t *credp, int *rval);
57 static int fct_fctiocmd(intptr_t data, int mode);
58 void fct_init_kstats(fct_i_local_port_t *iport);
59
60 static dev_info_t *fct_dip;
61 static struct cb_ops fct_cb_ops = {
62 fct_open, /* open */
63 fct_close, /* close */
64 nodev, /* strategy */
65 nodev, /* print */
66 nodev, /* dump */
67 nodev, /* read */
68 nodev, /* write */
69 fct_ioctl, /* ioctl */
70 nodev, /* devmap */
71 nodev, /* mmap */
72 nodev, /* segmap */
73 nochpoll, /* chpoll */
74 ddi_prop_op, /* cb_prop_op */
75 0, /* streamtab */
76 D_NEW | D_MP, /* cb_flag */
77 CB_REV, /* rev */
78 nodev, /* aread */
79 nodev /* awrite */
80 };
81
82 static struct dev_ops fct_ops = {
83 DEVO_REV,
84 0,
85 fct_getinfo,
86 nulldev, /* identify */
87 nulldev, /* probe */
88 fct_attach,
89 fct_detach,
90 nodev, /* reset */
91 &fct_cb_ops,
92 NULL, /* bus_ops */
93 NULL /* power */
94 };
95
96 #define FCT_NAME "COMSTAR FCT"
97 #define FCT_MODULE_NAME "fct"
98
99 extern struct mod_ops mod_driverops;
100 static struct modldrv modldrv = {
101 &mod_driverops,
102 FCT_NAME,
103 &fct_ops
104 };
105
106 static struct modlinkage modlinkage = {
107 MODREV_1,
108 &modldrv,
109 NULL
110 };
111
112 static uint32_t rportid_table_size = FCT_HASH_TABLE_SIZE;
113 static int max_cached_ncmds = FCT_MAX_CACHED_CMDS;
114 static fct_i_local_port_t *fct_iport_list = NULL;
115 static kmutex_t fct_global_mutex;
116 uint32_t fct_rscn_options = RSCN_OPTION_VERIFY;
117 /*
118 * This is to keep fibre channel from hanging if syseventd is
119 * not working correctly and the queue fills. It is a tunable
120 * to allow the user to force event logging to always happen
121 * which is the default.
122 */
123 static uint8_t fct_force_log = 0; /* use DDI_SLEEP on ddi_log_sysevent */
124
125
126 int
_init(void)127 _init(void)
128 {
129 int ret;
130
131 ret = mod_install(&modlinkage);
132 if (ret)
133 return (ret);
134 /* XXX */
135 mutex_init(&fct_global_mutex, NULL, MUTEX_DRIVER, NULL);
136 return (ret);
137 }
138
139 int
_fini(void)140 _fini(void)
141 {
142 int ret;
143
144 ret = mod_remove(&modlinkage);
145 if (ret)
146 return (ret);
147 /* XXX */
148 mutex_destroy(&fct_global_mutex);
149 return (ret);
150 }
151
152 int
_info(struct modinfo * modinfop)153 _info(struct modinfo *modinfop)
154 {
155 return (mod_info(&modlinkage, modinfop));
156 }
157
158 /* ARGSUSED */
159 static int
fct_getinfo(dev_info_t * dip,ddi_info_cmd_t cmd,void * arg,void ** result)160 fct_getinfo(dev_info_t *dip, ddi_info_cmd_t cmd, void *arg, void **result)
161 {
162 switch (cmd) {
163 case DDI_INFO_DEVT2DEVINFO:
164 *result = fct_dip;
165 break;
166 case DDI_INFO_DEVT2INSTANCE:
167 *result = (void *)(uintptr_t)ddi_get_instance(fct_dip);
168 break;
169 default:
170 return (DDI_FAILURE);
171 }
172
173 return (DDI_SUCCESS);
174 }
175
176 static int
fct_attach(dev_info_t * dip,ddi_attach_cmd_t cmd)177 fct_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
178 {
179 switch (cmd) {
180 case DDI_ATTACH:
181 fct_dip = dip;
182
183 if (ddi_create_minor_node(dip, "admin", S_IFCHR, 0,
184 DDI_NT_STMF_PP, 0) != DDI_SUCCESS) {
185 break;
186 }
187 ddi_report_dev(dip);
188 return (DDI_SUCCESS);
189 }
190
191 return (DDI_FAILURE);
192 }
193
194 static int
fct_detach(dev_info_t * dip,ddi_detach_cmd_t cmd)195 fct_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
196 {
197 switch (cmd) {
198 case DDI_DETACH:
199 ddi_remove_minor_node(dip, 0);
200 return (DDI_SUCCESS);
201 }
202
203 return (DDI_FAILURE);
204 }
205
206 /* ARGSUSED */
207 static int
fct_open(dev_t * devp,int flag,int otype,cred_t * credp)208 fct_open(dev_t *devp, int flag, int otype, cred_t *credp)
209 {
210 if (otype != OTYP_CHR)
211 return (EINVAL);
212 return (0);
213 }
214
215 /* ARGSUSED */
216 static int
fct_close(dev_t dev,int flag,int otype,cred_t * credp)217 fct_close(dev_t dev, int flag, int otype, cred_t *credp)
218 {
219 return (0);
220 }
221
222 /* ARGSUSED */
223 static int
fct_ioctl(dev_t dev,int cmd,intptr_t data,int mode,cred_t * credp,int * rval)224 fct_ioctl(dev_t dev, int cmd, intptr_t data, int mode,
225 cred_t *credp, int *rval)
226 {
227 int ret = 0;
228
229 if ((cmd & 0xff000000) != FCT_IOCTL) {
230 return (ENOTTY);
231 }
232
233 if (drv_priv(credp) != 0) {
234 return (EPERM);
235 }
236
237 switch (cmd) {
238 case FCTIO_CMD:
239 ret = fct_fctiocmd(data, mode);
240 break;
241 default:
242 ret = ENOTTY;
243 break;
244 }
245
246 return (ret);
247 }
248
249 int
fct_copyin_iocdata(intptr_t data,int mode,fctio_t ** fctio,void ** ibuf,void ** abuf,void ** obuf)250 fct_copyin_iocdata(intptr_t data, int mode, fctio_t **fctio,
251 void **ibuf, void **abuf, void **obuf)
252 {
253 int ret = 0;
254
255 *ibuf = NULL;
256 *abuf = NULL;
257 *obuf = NULL;
258 *fctio = kmem_zalloc(sizeof (fctio_t), KM_SLEEP);
259 if (ddi_copyin((void *)data, *fctio, sizeof (fctio_t), mode)) {
260 ret = EFAULT;
261 goto copyin_iocdata_done;
262 }
263
264 if ((*fctio)->fctio_ilen) {
265 *ibuf = kmem_zalloc((*fctio)->fctio_ilen, KM_SLEEP);
266 if (ddi_copyin((void *)(unsigned long)(*fctio)->fctio_ibuf,
267 *ibuf, (*fctio)->fctio_ilen, mode)) {
268 ret = EFAULT;
269 goto copyin_iocdata_done;
270 }
271 }
272 if ((*fctio)->fctio_alen) {
273 *abuf = kmem_zalloc((*fctio)->fctio_alen, KM_SLEEP);
274 if (ddi_copyin((void *)(unsigned long)(*fctio)->fctio_abuf,
275 *abuf, (*fctio)->fctio_alen, mode)) {
276 ret = EFAULT;
277 goto copyin_iocdata_done;
278 }
279 }
280 if ((*fctio)->fctio_olen)
281 *obuf = kmem_zalloc((*fctio)->fctio_olen, KM_SLEEP);
282 if (ret == 0)
283 return (0);
284 ret = EFAULT;
285 copyin_iocdata_done:
286 if (*obuf) {
287 kmem_free(*obuf, (*fctio)->fctio_olen);
288 *obuf = NULL;
289 }
290 if (*abuf) {
291 kmem_free(*abuf, (*fctio)->fctio_alen);
292 *abuf = NULL;
293 }
294 if (*ibuf) {
295 kmem_free(*ibuf, (*fctio)->fctio_ilen);
296 *ibuf = NULL;
297 }
298 kmem_free(*fctio, sizeof (fctio_t));
299 return (ret);
300 }
301
302 int
fct_copyout_iocdata(intptr_t data,int mode,fctio_t * fctio,void * obuf)303 fct_copyout_iocdata(intptr_t data, int mode, fctio_t *fctio, void *obuf)
304 {
305 int ret = 0;
306
307 if (fctio->fctio_olen) {
308 ret = ddi_copyout(obuf,
309 (void *)(unsigned long)fctio->fctio_obuf, fctio->fctio_olen,
310 mode);
311 if (ret) {
312 return (EFAULT);
313 }
314 }
315 ret = ddi_copyout(fctio, (void *)data, sizeof (fctio_t), mode);
316 if (ret) {
317 return (EFAULT);
318 }
319 return (0);
320 }
321
322 int
fct_get_port_list(char * pathList,int count)323 fct_get_port_list(char *pathList, int count)
324 {
325 fct_i_local_port_t *iport;
326 int i = 0, maxPorts = 0;
327
328 ASSERT(pathList != NULL);
329
330 mutex_enter(&fct_global_mutex);
331 for (iport = fct_iport_list; iport; iport = iport->iport_next) {
332 if (i < count)
333 bcopy(iport->iport_port->port_pwwn,
334 pathList + 8 * i, 8);
335 maxPorts ++;
336 i++;
337 }
338 mutex_exit(&fct_global_mutex);
339 return (maxPorts);
340 }
341
342 /* invoked with fct_global_mutex locked */
343 fct_i_local_port_t *
fct_get_iport_per_wwn(uint8_t * pwwn)344 fct_get_iport_per_wwn(uint8_t *pwwn)
345 {
346 fct_i_local_port_t *iport;
347
348 ASSERT(mutex_owned(&fct_global_mutex));
349 for (iport = fct_iport_list; iport; iport = iport->iport_next) {
350 if (bcmp(iport->iport_port->port_pwwn, pwwn, 8) == 0)
351 return (iport);
352 }
353 return (NULL);
354 }
355
356 int
fct_get_adapter_attr(uint8_t * pwwn,fc_tgt_hba_adapter_attributes_t * hba_attr,uint32_t * err_detail)357 fct_get_adapter_attr(uint8_t *pwwn, fc_tgt_hba_adapter_attributes_t *hba_attr,
358 uint32_t *err_detail)
359 {
360 fct_i_local_port_t *iport;
361 fct_port_attrs_t *attr;
362
363 hba_attr->version = FCT_HBA_ADAPTER_ATTRIBUTES_VERSION;
364 iport = fct_get_iport_per_wwn(pwwn);
365 if (!iport) {
366 *err_detail = FCTIO_BADWWN;
367 return (ENXIO);
368 }
369
370 attr = (fct_port_attrs_t *)kmem_zalloc(sizeof (fct_port_attrs_t),
371 KM_SLEEP);
372 mutex_exit(&fct_global_mutex);
373 iport->iport_port->port_populate_hba_details(iport->iport_port, attr);
374 mutex_enter(&fct_global_mutex);
375
376 bcopy(attr->manufacturer, hba_attr->Manufacturer,
377 sizeof (hba_attr->Manufacturer));
378 bcopy(attr->serial_number, hba_attr->SerialNumber,
379 sizeof (hba_attr->SerialNumber));
380 bcopy(attr->model, hba_attr->Model, sizeof (hba_attr->Model));
381 bcopy(attr->model_description, hba_attr->ModelDescription,
382 sizeof (hba_attr->ModelDescription));
383 if (iport->iport_port->port_sym_node_name)
384 bcopy(iport->iport_port->port_sym_node_name,
385 hba_attr->NodeSymbolicName,
386 strlen(iport->iport_port->port_sym_node_name));
387 else
388 bcopy(utsname.nodename, hba_attr->NodeSymbolicName,
389 strlen(utsname.nodename));
390 bcopy(attr->hardware_version, hba_attr->HardwareVersion,
391 sizeof (hba_attr->HardwareVersion));
392 bcopy(attr->option_rom_version, hba_attr->OptionROMVersion,
393 sizeof (hba_attr->OptionROMVersion));
394 bcopy(attr->firmware_version, hba_attr->FirmwareVersion,
395 sizeof (hba_attr->FirmwareVersion));
396 hba_attr->VendorSpecificID = attr->vendor_specific_id;
397 bcopy(iport->iport_port->port_nwwn, hba_attr->NodeWWN,
398 sizeof (hba_attr->NodeWWN));
399
400 bcopy(attr->driver_name, hba_attr->DriverName,
401 sizeof (hba_attr->DriverName));
402 bcopy(attr->driver_version, hba_attr->DriverVersion,
403 sizeof (hba_attr->DriverVersion));
404
405
406 /* hba_attr->NumberOfPorts = fct_count_fru_ports(iport); */
407 hba_attr->NumberOfPorts = 1;
408
409 kmem_free(attr, sizeof (fct_port_attrs_t));
410 return (0);
411 }
412
413 int
fct_get_adapter_port_attr(fct_i_local_port_t * ilport,uint8_t * pwwn,fc_tgt_hba_port_attributes_t * port_attr,uint32_t * err_detail)414 fct_get_adapter_port_attr(fct_i_local_port_t *ilport, uint8_t *pwwn,
415 fc_tgt_hba_port_attributes_t *port_attr, uint32_t *err_detail)
416 {
417 fct_i_local_port_t *iport = ilport;
418 fct_i_remote_port_t *irp = NULL;
419 fct_port_attrs_t *attr;
420 int i = 0;
421
422 port_attr->version = FCT_HBA_PORT_ATTRIBUTES_VERSION;
423
424 if (!ilport) {
425 iport = fct_get_iport_per_wwn(pwwn);
426 if (!iport) {
427 *err_detail = FCTIO_BADWWN;
428 return (ENXIO);
429 }
430 }
431
432 attr = (fct_port_attrs_t *)kmem_zalloc(sizeof (fct_port_attrs_t),
433 KM_SLEEP);
434 mutex_exit(&fct_global_mutex);
435 iport->iport_port->port_populate_hba_details(iport->iport_port, attr);
436 mutex_enter(&fct_global_mutex);
437
438 port_attr->lastChange = iport->iport_last_change;
439 bcopy(iport->iport_port->port_nwwn, port_attr->NodeWWN,
440 sizeof (port_attr->NodeWWN));
441 bcopy(iport->iport_port->port_pwwn, port_attr->PortWWN,
442 sizeof (port_attr->PortWWN));
443 bzero(port_attr->FabricName, sizeof (port_attr->FabricName));
444 port_attr->PortFcId = iport->iport_link_info.portid;
445 if ((iport->iport_link_state & S_LINK_ONLINE) ||
446 (iport->iport_link_state & S_RCVD_LINK_UP)) {
447 port_attr->PortState = FC_HBA_PORTSTATE_ONLINE;
448 } else {
449 port_attr->PortState = FC_HBA_PORTSTATE_OFFLINE;
450 }
451 switch (iport->iport_link_info.port_topology) {
452 case PORT_TOPOLOGY_PT_TO_PT:
453 port_attr->PortType = FC_HBA_PORTTYPE_PTP;
454 break;
455 case PORT_TOPOLOGY_PRIVATE_LOOP:
456 port_attr->PortType = FC_HBA_PORTTYPE_LPORT;
457 break;
458 case PORT_TOPOLOGY_PUBLIC_LOOP:
459 port_attr->PortType = FC_HBA_PORTTYPE_NLPORT;
460 break;
461 case PORT_TOPOLOGY_FABRIC_PT_TO_PT:
462 port_attr->PortType = FC_HBA_PORTTYPE_FPORT;
463 break;
464 default:
465 port_attr->PortType = FC_HBA_PORTTYPE_UNKNOWN;
466 break;
467 }
468 port_attr->PortSupportedClassofService = attr->supported_cos;
469 port_attr->PortSupportedFc4Types[0] = 0;
470 port_attr->PortActiveFc4Types[2] = 1;
471 if (iport->iport_port->port_sym_port_name)
472 bcopy(iport->iport_port->port_sym_port_name,
473 port_attr->PortSymbolicName,
474 strlen(iport->iport_port->port_sym_port_name));
475 else if (iport->iport_port->port_default_alias)
476 bcopy(iport->iport_port->port_default_alias,
477 port_attr->PortSymbolicName,
478 strlen(iport->iport_port->port_default_alias));
479 else
480 port_attr->PortSymbolicName[0] = 0;
481 /* the definition is different so need to translate */
482 if (attr->supported_speed & PORT_SPEED_1G)
483 port_attr->PortSupportedSpeed |= FC_HBA_PORTSPEED_1GBIT;
484 if (attr->supported_speed & PORT_SPEED_2G)
485 port_attr->PortSupportedSpeed |= FC_HBA_PORTSPEED_2GBIT;
486 if (attr->supported_speed & PORT_SPEED_4G)
487 port_attr->PortSupportedSpeed |= FC_HBA_PORTSPEED_4GBIT;
488 if (attr->supported_speed & PORT_SPEED_8G)
489 port_attr->PortSupportedSpeed |= FC_HBA_PORTSPEED_8GBIT;
490 if (attr->supported_speed & PORT_SPEED_10G)
491 port_attr->PortSupportedSpeed |= FC_HBA_PORTSPEED_10GBIT;
492 if (attr->supported_speed & PORT_SPEED_16G)
493 port_attr->PortSupportedSpeed |= FC_HBA_PORTSPEED_16GBIT;
494 if (attr->supported_speed & PORT_SPEED_32G)
495 port_attr->PortSupportedSpeed |= FC_HBA_PORTSPEED_32GBIT;
496 switch (iport->iport_link_info.port_speed) {
497 case PORT_SPEED_1G:
498 port_attr->PortSpeed = FC_HBA_PORTSPEED_1GBIT;
499 break;
500 case PORT_SPEED_2G:
501 port_attr->PortSpeed = FC_HBA_PORTSPEED_2GBIT;
502 break;
503 case PORT_SPEED_4G:
504 port_attr->PortSpeed = FC_HBA_PORTSPEED_4GBIT;
505 break;
506 case PORT_SPEED_8G:
507 port_attr->PortSpeed = FC_HBA_PORTSPEED_8GBIT;
508 break;
509 case PORT_SPEED_10G:
510 port_attr->PortSpeed = FC_HBA_PORTSPEED_10GBIT;
511 break;
512 case PORT_SPEED_16G:
513 port_attr->PortSpeed = FC_HBA_PORTSPEED_16GBIT;
514 break;
515 case PORT_SPEED_32G:
516 port_attr->PortSpeed = FC_HBA_PORTSPEED_32GBIT;
517 break;
518 default:
519 port_attr->PortSpeed = FC_HBA_PORTSPEED_UNKNOWN;
520 break;
521 }
522 port_attr->PortMaxFrameSize = attr->max_frame_size;
523 rw_enter(&iport->iport_lock, RW_READER);
524 port_attr->NumberofDiscoveredPorts = iport->iport_nrps_login;
525 for (; i < iport->iport_port->port_max_logins; i++) {
526 irp = iport->iport_rp_slots[i];
527 if (irp && irp->irp_flags & IRP_PLOGI_DONE) {
528 if (FC_WELL_KNOWN_ADDR(irp->irp_portid))
529 port_attr->NumberofDiscoveredPorts --;
530 }
531 }
532 rw_exit(&iport->iport_lock);
533
534 kmem_free(attr, sizeof (fct_port_attrs_t));
535
536 return (0);
537 }
538
539 int
fct_get_discovered_port_attr(fct_i_remote_port_t * remote_port,uint8_t * port_wwn,uint32_t index,fc_tgt_hba_port_attributes_t * port_attr,uint32_t * error_detail)540 fct_get_discovered_port_attr(fct_i_remote_port_t *remote_port,
541 uint8_t *port_wwn, uint32_t index, fc_tgt_hba_port_attributes_t *port_attr,
542 uint32_t *error_detail)
543 {
544 fct_i_local_port_t *iport;
545 fct_i_remote_port_t *irp = remote_port;
546 int count = 0, i = 0;
547
548 port_attr->version = FCT_HBA_PORT_ATTRIBUTES_VERSION;
549 if (!remote_port) {
550 iport = fct_get_iport_per_wwn(port_wwn);
551 if (!iport) {
552 *error_detail = FCTIO_BADWWN;
553 return (ENXIO);
554 }
555
556 rw_enter(&iport->iport_lock, RW_READER);
557
558 if (index >= iport->iport_nrps_login) {
559 rw_exit(&iport->iport_lock);
560 *error_detail = FCTIO_OUTOFBOUNDS;
561 return (EINVAL);
562 }
563 for (; i < iport->iport_port->port_max_logins; i++) {
564 irp = iport->iport_rp_slots[i];
565 if (irp && irp->irp_flags & IRP_PLOGI_DONE &&
566 !FC_WELL_KNOWN_ADDR(irp->irp_portid)) {
567 count ++;
568 if ((index + 1) <= count)
569 break;
570 }
571 }
572 if (i >= iport->iport_port->port_max_logins) {
573 rw_exit(&iport->iport_lock);
574 *error_detail = FCTIO_OUTOFBOUNDS;
575 return (EINVAL);
576 }
577 ASSERT(irp);
578 } else {
579 iport = (fct_i_local_port_t *)
580 irp->irp_rp->rp_port->port_fct_private;
581 }
582 port_attr->lastChange = iport->iport_last_change;
583 rw_enter(&irp->irp_lock, RW_READER);
584 bcopy(irp->irp_rp->rp_pwwn, port_attr->PortWWN,
585 sizeof (port_attr->PortWWN));
586 bcopy(irp->irp_rp->rp_nwwn, port_attr->NodeWWN,
587 sizeof (port_attr->NodeWWN));
588 port_attr->PortFcId = irp->irp_portid;
589 if (irp->irp_spn)
590 (void) strncpy(port_attr->PortSymbolicName, irp->irp_spn,
591 strlen(irp->irp_spn));
592 else
593 port_attr->PortSymbolicName[0] = '\0';
594 port_attr->PortSupportedClassofService = irp->irp_cos;
595 bcopy((caddr_t)irp->irp_fc4types, port_attr->PortActiveFc4Types,
596 sizeof (irp->irp_fc4types));
597 bcopy((caddr_t)irp->irp_fc4types, port_attr->PortSupportedFc4Types,
598 sizeof (irp->irp_fc4types));
599 if (irp->irp_flags & IRP_PLOGI_DONE)
600 port_attr->PortState = FC_HBA_PORTSTATE_ONLINE;
601 else
602 port_attr->PortState = FC_HBA_PORTSTATE_UNKNOWN;
603
604 port_attr->PortType = FC_HBA_PORTTYPE_UNKNOWN;
605 port_attr->PortSupportedSpeed = FC_HBA_PORTSPEED_UNKNOWN;
606 port_attr->PortSpeed = FC_HBA_PORTSPEED_UNKNOWN;
607 port_attr->PortMaxFrameSize = 0;
608 port_attr->NumberofDiscoveredPorts = 0;
609 rw_exit(&irp->irp_lock);
610 if (!remote_port) {
611 rw_exit(&iport->iport_lock);
612 }
613 return (0);
614 }
615
616 int
fct_get_port_attr(uint8_t * port_wwn,fc_tgt_hba_port_attributes_t * port_attr,uint32_t * error_detail)617 fct_get_port_attr(uint8_t *port_wwn,
618 fc_tgt_hba_port_attributes_t *port_attr, uint32_t *error_detail)
619 {
620 fct_i_local_port_t *iport;
621 fct_i_remote_port_t *irp;
622 int i, ret;
623
624 iport = fct_get_iport_per_wwn(port_wwn);
625 if (iport) {
626 return (fct_get_adapter_port_attr(iport, port_wwn,
627 port_attr, error_detail));
628 }
629 /* else */
630 for (iport = fct_iport_list; iport; iport = iport->iport_next) {
631 rw_enter(&iport->iport_lock, RW_READER);
632 for (i = 0; i < rportid_table_size; i++) {
633 irp = iport->iport_rp_tb[i];
634 while (irp) {
635 if (bcmp(irp->irp_rp->rp_pwwn,
636 port_wwn, 8) == 0 &&
637 irp->irp_flags & IRP_PLOGI_DONE) {
638 ret = fct_get_discovered_port_attr(
639 irp, NULL, 0, port_attr,
640 error_detail);
641 rw_exit(&iport->iport_lock);
642 return (ret);
643 }
644 irp = irp->irp_next;
645 }
646 }
647 rw_exit(&iport->iport_lock);
648 }
649 *error_detail = FCTIO_BADWWN;
650 return (ENXIO);
651 }
652
653 /* ARGSUSED */
654 int
fct_get_port_stats(uint8_t * port_wwn,fc_tgt_hba_adapter_port_stats_t * port_stats,uint32_t * error_detail)655 fct_get_port_stats(uint8_t *port_wwn,
656 fc_tgt_hba_adapter_port_stats_t *port_stats, uint32_t *error_detail)
657 {
658 int ret;
659 fct_i_local_port_t *iport = fct_get_iport_per_wwn(port_wwn);
660 fct_port_link_status_t stat;
661 uint32_t buf_size = sizeof (fc_tgt_hba_adapter_port_stats_t);
662
663 if (!iport)
664 return (ENXIO);
665 port_stats->version = FCT_HBA_ADAPTER_PORT_STATS_VERSION;
666
667 if (iport->iport_port->port_info == NULL) {
668 *error_detail = FCTIO_FAILURE;
669 return (EIO);
670 }
671 ret = iport->iport_port->port_info(FC_TGT_PORT_RLS,
672 iport->iport_port, NULL, (uint8_t *)&stat, &buf_size);
673 if (ret != STMF_SUCCESS) {
674 *error_detail = FCTIO_FAILURE;
675 return (EIO);
676 }
677
678 port_stats->SecondsSinceLastReset = 0;
679 port_stats->TxFrames = 0;
680 port_stats->TxWords = 0;
681 port_stats->RxFrames = 0;
682 port_stats->RxWords = 0;
683 port_stats->LIPCount = 0;
684 port_stats->NOSCount = 0;
685 port_stats->ErrorFrames = 0;
686 port_stats->DumpedFrames = 0;
687 port_stats->LinkFailureCount = stat.LinkFailureCount;
688 port_stats->LossOfSyncCount = stat.LossOfSyncCount;
689 port_stats->LossOfSignalCount = stat.LossOfSignalsCount;
690 port_stats->PrimitiveSeqProtocolErrCount =
691 stat.PrimitiveSeqProtocolErrorCount;
692 port_stats->InvalidTxWordCount =
693 stat.InvalidTransmissionWordCount;
694 port_stats->InvalidCRCCount = stat.InvalidCRCCount;
695
696 return (ret);
697 }
698
699 int
fct_get_link_status(uint8_t * port_wwn,uint64_t * dest_id,fct_port_link_status_t * link_status,uint32_t * error_detail)700 fct_get_link_status(uint8_t *port_wwn, uint64_t *dest_id,
701 fct_port_link_status_t *link_status, uint32_t *error_detail)
702 {
703 fct_i_local_port_t *iport = fct_get_iport_per_wwn(port_wwn);
704 fct_i_remote_port_t *irp = NULL;
705 uint32_t buf_size = sizeof (fct_port_link_status_t);
706 stmf_status_t ret = 0;
707 int i;
708 fct_cmd_t *cmd = NULL;
709
710 if (!iport) {
711 *error_detail = FCTIO_BADWWN;
712 return (ENXIO);
713 }
714
715 /*
716 * If what we are requesting is zero or same as local port,
717 * then we use port_info()
718 */
719 if (dest_id == NULL || *dest_id == iport->iport_link_info.portid) {
720 if (iport->iport_port->port_info == NULL) {
721 *error_detail = FCTIO_FAILURE;
722 return (EIO);
723 }
724 ret = iport->iport_port->port_info(FC_TGT_PORT_RLS,
725 iport->iport_port, NULL,
726 (uint8_t *)link_status, &buf_size);
727 if (ret == STMF_SUCCESS) {
728 return (0);
729 } else {
730 *error_detail = FCTIO_FAILURE;
731 return (EIO);
732 }
733 }
734
735 /*
736 * For remote port, we will send RLS
737 */
738 for (i = 0; i < rportid_table_size; i++) {
739 irp = iport->iport_rp_tb[i];
740 while (irp) {
741 if (irp->irp_rp->rp_id == *dest_id &&
742 irp->irp_flags & IRP_PLOGI_DONE) {
743 goto SEND_RLS_ELS;
744 }
745 irp = irp->irp_next;
746 }
747 }
748 return (ENXIO);
749
750 SEND_RLS_ELS:
751 cmd = fct_create_solels(iport->iport_port,
752 irp->irp_rp, 0, ELS_OP_RLS,
753 0, fct_rls_cb);
754 if (!cmd)
755 return (ENOMEM);
756 iport->iport_rls_cb_data.fct_link_status = link_status;
757 CMD_TO_ICMD(cmd)->icmd_cb_private = &iport->iport_rls_cb_data;
758 fct_post_to_solcmd_queue(iport->iport_port, cmd);
759 sema_p(&iport->iport_rls_sema);
760 if (iport->iport_rls_cb_data.fct_els_res != FCT_SUCCESS)
761 ret = EIO;
762 return (ret);
763 }
764
765 static int
fct_forcelip(uint8_t * port_wwn,uint32_t * fctio_errno)766 fct_forcelip(uint8_t *port_wwn, uint32_t *fctio_errno)
767 {
768 fct_status_t rval;
769 fct_i_local_port_t *iport;
770
771 mutex_enter(&fct_global_mutex);
772 iport = fct_get_iport_per_wwn(port_wwn);
773 mutex_exit(&fct_global_mutex);
774 if (iport == NULL) {
775 return (-1);
776 }
777
778 iport->iport_port->port_ctl(iport->iport_port,
779 FCT_CMD_FORCE_LIP, &rval);
780 if (rval != FCT_SUCCESS) {
781 *fctio_errno = FCTIO_FAILURE;
782 } else {
783 *fctio_errno = 0;
784 }
785
786 return (0);
787 }
788
789 static int
fct_fctiocmd(intptr_t data,int mode)790 fct_fctiocmd(intptr_t data, int mode)
791 {
792 int ret = 0;
793 void *ibuf = NULL;
794 void *obuf = NULL;
795 void *abuf = NULL;
796 fctio_t *fctio;
797 uint32_t attr_length;
798
799 ret = fct_copyin_iocdata(data, mode, &fctio, &ibuf, &abuf, &obuf);
800 if (ret) {
801 return (ret);
802 }
803
804 switch (fctio->fctio_cmd) {
805 case FCTIO_ADAPTER_LIST: {
806 fc_tgt_hba_list_t *list = (fc_tgt_hba_list_t *)obuf;
807 int count;
808
809 if (fctio->fctio_olen < sizeof (fc_tgt_hba_list_t)) {
810 ret = EINVAL;
811 break;
812 }
813 list->numPorts = (fctio->fctio_olen -
814 sizeof (fc_tgt_hba_list_t))/8 + 1;
815
816 list->version = FCT_HBA_LIST_VERSION;
817 count = fct_get_port_list((char *)list->port_wwn,
818 list->numPorts);
819 if (count < 0) {
820 ret = ENXIO;
821 break;
822 }
823 if (count > list->numPorts) {
824 fctio->fctio_errno = FCTIO_MOREDATA;
825 ret = ENOSPC;
826 }
827 list->numPorts = count;
828 break;
829 }
830 case FCTIO_GET_ADAPTER_ATTRIBUTES: {
831 fc_tgt_hba_adapter_attributes_t *hba_attr;
832 uint8_t *port_wwn = (uint8_t *)ibuf;
833
834 attr_length = sizeof (fc_tgt_hba_adapter_attributes_t);
835 if (fctio->fctio_olen < attr_length ||
836 fctio->fctio_xfer != FCTIO_XFER_READ) {
837 ret = EINVAL;
838 break;
839 }
840 hba_attr = (fc_tgt_hba_adapter_attributes_t *)obuf;
841
842 mutex_enter(&fct_global_mutex);
843 ret = fct_get_adapter_attr(port_wwn, hba_attr,
844 &fctio->fctio_errno);
845 mutex_exit(&fct_global_mutex);
846
847 break;
848 }
849 case FCTIO_GET_ADAPTER_PORT_ATTRIBUTES: {
850 fc_tgt_hba_port_attributes_t *port_attr;
851
852 uint8_t *port_wwn = (uint8_t *)ibuf;
853
854 attr_length = sizeof (fc_tgt_hba_port_attributes_t);
855 if (fctio->fctio_olen < attr_length ||
856 fctio->fctio_xfer != FCTIO_XFER_READ) {
857 ret = EINVAL;
858 break;
859 }
860 port_attr = (fc_tgt_hba_port_attributes_t *)obuf;
861
862 mutex_enter(&fct_global_mutex);
863 ret = fct_get_adapter_port_attr(NULL, port_wwn, port_attr,
864 &fctio->fctio_errno);
865 mutex_exit(&fct_global_mutex);
866
867 break;
868 }
869 case FCTIO_GET_DISCOVERED_PORT_ATTRIBUTES: {
870 uint8_t *port_wwn = (uint8_t *)ibuf;
871 uint32_t *port_index = (uint32_t *)abuf;
872 fc_tgt_hba_port_attributes_t *port_attr;
873
874 attr_length = sizeof (fc_tgt_hba_port_attributes_t);
875 if (fctio->fctio_olen < attr_length ||
876 fctio->fctio_xfer != FCTIO_XFER_READ) {
877 ret = EINVAL;
878 break;
879 }
880 port_attr = (fc_tgt_hba_port_attributes_t *)obuf;
881
882 mutex_enter(&fct_global_mutex);
883 ret = fct_get_discovered_port_attr(NULL, port_wwn,
884 *port_index, port_attr, &fctio->fctio_errno);
885 mutex_exit(&fct_global_mutex);
886
887 break;
888 }
889 case FCTIO_GET_PORT_ATTRIBUTES: {
890 uint8_t *port_wwn = (uint8_t *)ibuf;
891 fc_tgt_hba_port_attributes_t *port_attr;
892
893 attr_length = sizeof (fc_tgt_hba_port_attributes_t);
894 if (fctio->fctio_olen < attr_length ||
895 fctio->fctio_xfer != FCTIO_XFER_READ) {
896 ret = EINVAL;
897 break;
898 }
899
900 port_attr = (fc_tgt_hba_port_attributes_t *)obuf;
901
902 mutex_enter(&fct_global_mutex);
903 ret = fct_get_port_attr(port_wwn, port_attr,
904 &fctio->fctio_errno);
905 mutex_exit(&fct_global_mutex);
906
907 break;
908 }
909 case FCTIO_GET_ADAPTER_PORT_STATS: {
910 uint8_t *port_wwn = (uint8_t *)ibuf;
911 fc_tgt_hba_adapter_port_stats_t *port_stats =
912 (fc_tgt_hba_adapter_port_stats_t *)obuf;
913 mutex_enter(&fct_global_mutex);
914 ret = fct_get_port_stats(port_wwn, port_stats,
915 &fctio->fctio_errno);
916 mutex_exit(&fct_global_mutex);
917 break;
918 }
919 case FCTIO_GET_LINK_STATUS: {
920 uint8_t *port_wwn = (uint8_t *)ibuf;
921 fct_port_link_status_t *link_status =
922 (fct_port_link_status_t *)obuf;
923 uint64_t *dest_id = abuf;
924
925 mutex_enter(&fct_global_mutex);
926 ret = fct_get_link_status(port_wwn, dest_id, link_status,
927 &fctio->fctio_errno);
928 mutex_exit(&fct_global_mutex);
929 break;
930 }
931
932 case FCTIO_FORCE_LIP:
933 ret = fct_forcelip((uint8_t *)ibuf, &fctio->fctio_errno);
934 break;
935
936 default:
937 break;
938 }
939 if (ret == 0) {
940 ret = fct_copyout_iocdata(data, mode, fctio, obuf);
941 } else if (fctio->fctio_errno) {
942 (void) fct_copyout_iocdata(data, mode, fctio, obuf);
943 }
944
945 if (obuf) {
946 kmem_free(obuf, fctio->fctio_olen);
947 obuf = NULL;
948 }
949 if (abuf) {
950 kmem_free(abuf, fctio->fctio_alen);
951 abuf = NULL;
952 }
953
954 if (ibuf) {
955 kmem_free(ibuf, fctio->fctio_ilen);
956 ibuf = NULL;
957 }
958 kmem_free(fctio, sizeof (fctio_t));
959 return (ret);
960 }
961
962 typedef struct {
963 void *bp; /* back pointer from internal struct to main struct */
964 int alloc_size;
965 fct_struct_id_t struct_id;
966 } __ifct_t;
967
968 typedef struct {
969 __ifct_t *fp; /* Framework private */
970 void *cp; /* Caller private */
971 void *ss; /* struct specific */
972 } __fct_t;
973
974 static struct {
975 int shared;
976 int fw_private;
977 int struct_specific;
978 } fct_sizes[] = { { 0, 0, 0 },
979 { GET_STRUCT_SIZE(fct_local_port_t),
980 GET_STRUCT_SIZE(fct_i_local_port_t), 0 },
981 { GET_STRUCT_SIZE(fct_remote_port_t),
982 GET_STRUCT_SIZE(fct_i_remote_port_t), 0 },
983 { GET_STRUCT_SIZE(fct_cmd_t),
984 GET_STRUCT_SIZE(fct_i_cmd_t), GET_STRUCT_SIZE(fct_els_t) },
985 { GET_STRUCT_SIZE(fct_cmd_t),
986 GET_STRUCT_SIZE(fct_i_cmd_t), GET_STRUCT_SIZE(fct_els_t) },
987 { GET_STRUCT_SIZE(fct_cmd_t),
988 GET_STRUCT_SIZE(fct_i_cmd_t), GET_STRUCT_SIZE(fct_sol_ct_t) },
989 { GET_STRUCT_SIZE(fct_cmd_t), GET_STRUCT_SIZE(fct_i_cmd_t),
990 GET_STRUCT_SIZE(fct_rcvd_abts_t) },
991 { GET_STRUCT_SIZE(fct_cmd_t), /* FCT_STRUCT_CMD_FCP_XCHG */
992 GET_STRUCT_SIZE(fct_i_cmd_t), 0 },
993 { GET_STRUCT_SIZE(fct_dbuf_store_t),
994 GET_STRUCT_SIZE(__ifct_t), 0 }
995 };
996
997 void *
fct_alloc(fct_struct_id_t struct_id,int additional_size,int flags)998 fct_alloc(fct_struct_id_t struct_id, int additional_size, int flags)
999 {
1000 int fct_size;
1001 int kmem_flag;
1002 __fct_t *sh;
1003
1004 if ((struct_id == 0) || (struct_id >= FCT_MAX_STRUCT_IDS))
1005 return (NULL);
1006
1007 if ((curthread->t_flag & T_INTR_THREAD) || (flags & AF_FORCE_NOSLEEP)) {
1008 kmem_flag = KM_NOSLEEP;
1009 } else {
1010 kmem_flag = KM_SLEEP;
1011 }
1012
1013 additional_size = (additional_size + 7) & (~7);
1014 fct_size = fct_sizes[struct_id].shared +
1015 fct_sizes[struct_id].fw_private +
1016 fct_sizes[struct_id].struct_specific + additional_size;
1017
1018 if (struct_id == FCT_STRUCT_LOCAL_PORT) {
1019 stmf_local_port_t *lport;
1020
1021 lport = (stmf_local_port_t *)stmf_alloc(
1022 STMF_STRUCT_STMF_LOCAL_PORT, fct_size, flags);
1023 if (lport) {
1024 sh = (__fct_t *)lport->lport_port_private;
1025 sh->ss = lport;
1026 } else {
1027 return (NULL);
1028 }
1029 } else if (struct_id == FCT_STRUCT_DBUF_STORE) {
1030 stmf_dbuf_store_t *ds;
1031
1032 ds = (stmf_dbuf_store_t *)stmf_alloc(STMF_STRUCT_DBUF_STORE,
1033 fct_size, flags);
1034 if (ds) {
1035 sh = (__fct_t *)ds->ds_port_private;
1036 sh->ss = ds;
1037 } else {
1038 return (NULL);
1039 }
1040 } else {
1041 sh = (__fct_t *)kmem_zalloc(fct_size, kmem_flag);
1042 }
1043
1044 if (sh == NULL)
1045 return (NULL);
1046
1047 sh->fp = (__ifct_t *)GET_BYTE_OFFSET(sh, fct_sizes[struct_id].shared);
1048 sh->cp = GET_BYTE_OFFSET(sh->fp, fct_sizes[struct_id].fw_private);
1049 if (fct_sizes[struct_id].struct_specific)
1050 sh->ss = GET_BYTE_OFFSET(sh->cp, additional_size);
1051
1052 sh->fp->bp = sh;
1053 sh->fp->alloc_size = fct_size;
1054 sh->fp->struct_id = struct_id;
1055
1056 if (struct_id == FCT_STRUCT_CMD_FCP_XCHG) {
1057 ((fct_cmd_t *)sh)->cmd_type = FCT_CMD_FCP_XCHG;
1058 } else if (struct_id == FCT_STRUCT_CMD_RCVD_ELS) {
1059 ((fct_cmd_t *)sh)->cmd_type = FCT_CMD_RCVD_ELS;
1060 } else if (struct_id == FCT_STRUCT_CMD_SOL_ELS) {
1061 ((fct_cmd_t *)sh)->cmd_type = FCT_CMD_SOL_ELS;
1062 } else if (struct_id == FCT_STRUCT_CMD_RCVD_ABTS) {
1063 ((fct_cmd_t *)sh)->cmd_type = FCT_CMD_RCVD_ABTS;
1064 } else if (struct_id == FCT_STRUCT_CMD_SOL_CT) {
1065 ((fct_cmd_t *)sh)->cmd_type = FCT_CMD_SOL_CT;
1066 }
1067
1068 return (sh);
1069 }
1070
1071 void
fct_free(void * ptr)1072 fct_free(void *ptr)
1073 {
1074 __fct_t *sh = (__fct_t *)ptr;
1075 fct_struct_id_t struct_id = sh->fp->struct_id;
1076
1077 if (struct_id == FCT_STRUCT_CMD_SOL_CT) {
1078 fct_sol_ct_t *ct = (fct_sol_ct_t *)
1079 ((fct_cmd_t *)ptr)->cmd_specific;
1080
1081 if (ct->ct_req_alloc_size) {
1082 kmem_free(ct->ct_req_payload, ct->ct_req_alloc_size);
1083 }
1084 if (ct->ct_resp_alloc_size) {
1085 kmem_free(ct->ct_resp_payload, ct->ct_resp_alloc_size);
1086 }
1087 } else if ((struct_id == FCT_STRUCT_CMD_RCVD_ELS) ||
1088 (struct_id == FCT_STRUCT_CMD_SOL_ELS)) {
1089 fct_els_t *els = (fct_els_t *)
1090 ((fct_cmd_t *)ptr)->cmd_specific;
1091 if (els->els_req_alloc_size)
1092 kmem_free(els->els_req_payload,
1093 els->els_req_alloc_size);
1094 if (els->els_resp_alloc_size)
1095 kmem_free(els->els_resp_payload,
1096 els->els_resp_alloc_size);
1097 }
1098
1099 if (struct_id == FCT_STRUCT_LOCAL_PORT) {
1100 stmf_free(((fct_local_port_t *)ptr)->port_lport);
1101 } else if (struct_id == FCT_STRUCT_DBUF_STORE) {
1102 stmf_free(((fct_dbuf_store_t *)ptr)->fds_ds);
1103 } else {
1104 kmem_free(ptr, sh->fp->alloc_size);
1105 }
1106 }
1107
1108 stmf_data_buf_t *
fct_alloc_dbuf(scsi_task_t * task,uint32_t size,uint32_t * pminsize,uint32_t flags)1109 fct_alloc_dbuf(scsi_task_t *task, uint32_t size, uint32_t *pminsize,
1110 uint32_t flags)
1111 {
1112 fct_local_port_t *port = (fct_local_port_t *)
1113 task->task_lport->lport_port_private;
1114
1115 return (port->port_fds->fds_alloc_data_buf(port, size,
1116 pminsize, flags));
1117 }
1118
1119 stmf_status_t
fct_setup_dbuf(scsi_task_t * task,stmf_data_buf_t * dbuf,uint32_t flags)1120 fct_setup_dbuf(scsi_task_t *task, stmf_data_buf_t *dbuf, uint32_t flags)
1121 {
1122 fct_local_port_t *port = (fct_local_port_t *)
1123 task->task_lport->lport_port_private;
1124
1125 ASSERT(port->port_fds->fds_setup_dbuf != NULL);
1126 if (port->port_fds->fds_setup_dbuf == NULL)
1127 return (STMF_FAILURE);
1128
1129 return (port->port_fds->fds_setup_dbuf(port, dbuf, flags));
1130 }
1131
1132 void
fct_teardown_dbuf(stmf_dbuf_store_t * ds,stmf_data_buf_t * dbuf)1133 fct_teardown_dbuf(stmf_dbuf_store_t *ds, stmf_data_buf_t *dbuf)
1134 {
1135 fct_dbuf_store_t *fds = ds->ds_port_private;
1136
1137 fds->fds_teardown_dbuf(fds, dbuf);
1138 }
1139
1140 void
fct_free_dbuf(stmf_dbuf_store_t * ds,stmf_data_buf_t * dbuf)1141 fct_free_dbuf(stmf_dbuf_store_t *ds, stmf_data_buf_t *dbuf)
1142 {
1143 fct_dbuf_store_t *fds;
1144
1145 fds = (fct_dbuf_store_t *)ds->ds_port_private;
1146
1147 fds->fds_free_data_buf(fds, dbuf);
1148 }
1149
1150 static uint32_t taskq_cntr = 0;
1151
1152 fct_status_t
fct_register_local_port(fct_local_port_t * port)1153 fct_register_local_port(fct_local_port_t *port)
1154 {
1155 fct_i_local_port_t *iport;
1156 stmf_local_port_t *lport;
1157 fct_cmd_slot_t *slot;
1158 int i;
1159 char taskq_name[FCT_TASKQ_NAME_LEN];
1160
1161 iport = (fct_i_local_port_t *)port->port_fct_private;
1162 if (port->port_fca_version != FCT_FCA_MODREV_1) {
1163 cmn_err(CE_WARN,
1164 "fct: %s driver version mismatch",
1165 port->port_default_alias);
1166 return (FCT_FAILURE);
1167 }
1168 if (port->port_default_alias) {
1169 int l = strlen(port->port_default_alias);
1170
1171 if (l < 16) {
1172 iport->iport_alias = iport->iport_alias_mem;
1173 } else {
1174 iport->iport_alias =
1175 (char *)kmem_zalloc(l+1, KM_SLEEP);
1176 }
1177 (void) strcpy(iport->iport_alias, port->port_default_alias);
1178 } else {
1179 iport->iport_alias = NULL;
1180 }
1181 stmf_wwn_to_devid_desc((scsi_devid_desc_t *)iport->iport_id,
1182 port->port_pwwn, PROTOCOL_FIBRE_CHANNEL);
1183 (void) snprintf(taskq_name, sizeof (taskq_name), "stmf_fct_taskq_%d",
1184 atomic_inc_32_nv(&taskq_cntr));
1185 if ((iport->iport_worker_taskq = ddi_taskq_create(NULL,
1186 taskq_name, 1, TASKQ_DEFAULTPRI, 0)) == NULL) {
1187 return (FCT_FAILURE);
1188 }
1189 mutex_init(&iport->iport_worker_lock, NULL, MUTEX_DRIVER, NULL);
1190 cv_init(&iport->iport_worker_cv, NULL, CV_DRIVER, NULL);
1191 rw_init(&iport->iport_lock, NULL, RW_DRIVER, NULL);
1192 sema_init(&iport->iport_rls_sema, 0, NULL, SEMA_DRIVER, NULL);
1193
1194 /* Remote port mgmt */
1195 iport->iport_rp_slots = (fct_i_remote_port_t **)kmem_zalloc(
1196 port->port_max_logins * sizeof (fct_i_remote_port_t *), KM_SLEEP);
1197 iport->iport_rp_tb = kmem_zalloc(rportid_table_size *
1198 sizeof (fct_i_remote_port_t *), KM_SLEEP);
1199
1200 /* fct_cmds for SCSI traffic */
1201 iport->iport_total_alloced_ncmds = 0;
1202 iport->iport_cached_ncmds = 0;
1203 port->port_fca_fcp_cmd_size =
1204 (port->port_fca_fcp_cmd_size + 7) & ~7;
1205 iport->iport_cached_cmdlist = NULL;
1206 mutex_init(&iport->iport_cached_cmd_lock, NULL, MUTEX_DRIVER, NULL);
1207
1208 /* Initialize cmd slots */
1209 iport->iport_cmd_slots = (fct_cmd_slot_t *)kmem_zalloc(
1210 port->port_max_xchges * sizeof (fct_cmd_slot_t), KM_SLEEP);
1211 iport->iport_next_free_slot = 0;
1212 for (i = 0; i < port->port_max_xchges; ) {
1213 slot = &iport->iport_cmd_slots[i];
1214 slot->slot_no = (uint16_t)i;
1215 slot->slot_next = (uint16_t)(++i);
1216 }
1217 slot->slot_next = FCT_SLOT_EOL;
1218 iport->iport_nslots_free = port->port_max_xchges;
1219
1220 iport->iport_task_green_limit =
1221 (port->port_max_xchges * FCT_TASK_GREEN_LIMIT) / 100;
1222 iport->iport_task_yellow_limit =
1223 (port->port_max_xchges * FCT_TASK_YELLOW_LIMIT) / 100;
1224 iport->iport_task_red_limit =
1225 (port->port_max_xchges * FCT_TASK_RED_LIMIT) / 100;
1226
1227 /* Start worker thread */
1228 atomic_and_32(&iport->iport_flags, ~IPORT_TERMINATE_WORKER);
1229 (void) ddi_taskq_dispatch(iport->iport_worker_taskq,
1230 fct_port_worker, port, DDI_SLEEP);
1231 /* Wait for taskq to start */
1232 while ((iport->iport_flags & IPORT_WORKER_RUNNING) == 0) {
1233 delay(1);
1234 }
1235
1236 lport = port->port_lport;
1237 lport->lport_id = (scsi_devid_desc_t *)iport->iport_id;
1238 lport->lport_alias = iport->iport_alias;
1239 lport->lport_pp = port->port_pp;
1240 port->port_fds->fds_ds->ds_alloc_data_buf = fct_alloc_dbuf;
1241 port->port_fds->fds_ds->ds_free_data_buf = fct_free_dbuf;
1242 port->port_fds->fds_ds->ds_setup_dbuf = fct_setup_dbuf;
1243 port->port_fds->fds_ds->ds_teardown_dbuf = fct_teardown_dbuf;
1244 lport->lport_ds = port->port_fds->fds_ds;
1245 lport->lport_xfer_data = fct_xfer_scsi_data;
1246 lport->lport_send_status = fct_send_scsi_status;
1247 lport->lport_task_free = fct_scsi_task_free;
1248 lport->lport_abort = fct_scsi_abort;
1249 lport->lport_ctl = fct_ctl;
1250 lport->lport_info = fct_info;
1251 lport->lport_event_handler = fct_event_handler;
1252 /* set up as alua participating port */
1253 stmf_set_port_alua(lport);
1254 if (stmf_register_local_port(port->port_lport) != FCT_SUCCESS) {
1255 goto fct_regport_fail1;
1256 }
1257 (void) stmf_lport_add_event(lport, LPORT_EVENT_INITIAL_LUN_MAPPED);
1258
1259 mutex_enter(&fct_global_mutex);
1260 iport->iport_next = fct_iport_list;
1261 iport->iport_prev = NULL;
1262 if (iport->iport_next)
1263 iport->iport_next->iport_prev = iport;
1264 fct_iport_list = iport;
1265 mutex_exit(&fct_global_mutex);
1266
1267 fct_init_kstats(iport);
1268
1269 fct_log_local_port_event(port, ESC_SUNFC_PORT_ATTACH);
1270
1271 return (FCT_SUCCESS);
1272
1273 fct_regport_fail1:;
1274 /* Stop the taskq 1st */
1275 if (iport->iport_flags & IPORT_WORKER_RUNNING) {
1276 atomic_or_32(&iport->iport_flags, IPORT_TERMINATE_WORKER);
1277 cv_broadcast(&iport->iport_worker_cv);
1278 while (iport->iport_flags & IPORT_WORKER_RUNNING) {
1279 delay(1);
1280 }
1281 }
1282 ddi_taskq_destroy(iport->iport_worker_taskq);
1283 if (iport->iport_rp_tb) {
1284 kmem_free(iport->iport_rp_tb, rportid_table_size *
1285 sizeof (fct_i_remote_port_t *));
1286 }
1287 return (FCT_FAILURE);
1288 }
1289
1290 fct_status_t
fct_deregister_local_port(fct_local_port_t * port)1291 fct_deregister_local_port(fct_local_port_t *port)
1292 {
1293 fct_i_local_port_t *iport;
1294 fct_i_cmd_t *icmd, *next_icmd;
1295 int ndx;
1296
1297 iport = (fct_i_local_port_t *)port->port_fct_private;
1298
1299 if ((iport->iport_state != FCT_STATE_OFFLINE) ||
1300 iport->iport_state_not_acked) {
1301 return (FCT_FAILURE);
1302 }
1303
1304 /* Stop the taskq 1st */
1305 if (iport->iport_flags & IPORT_WORKER_RUNNING) {
1306 atomic_or_32(&iport->iport_flags, IPORT_TERMINATE_WORKER);
1307 cv_broadcast(&iport->iport_worker_cv);
1308 for (ndx = 0; ndx < 100; ndx++) {
1309 if ((iport->iport_flags & IPORT_WORKER_RUNNING)
1310 == 0) {
1311 break;
1312 }
1313 delay(drv_usectohz(10000));
1314 }
1315 if (ndx == 100) {
1316 atomic_and_32(&iport->iport_flags,
1317 ~IPORT_TERMINATE_WORKER);
1318 return (FCT_WORKER_STUCK);
1319 }
1320 }
1321
1322 if (stmf_deregister_local_port(port->port_lport) != FCT_SUCCESS) {
1323 goto fct_deregport_fail1;
1324 }
1325
1326 mutex_enter(&fct_global_mutex);
1327 if (iport->iport_next)
1328 iport->iport_next->iport_prev = iport->iport_prev;
1329 if (iport->iport_prev)
1330 iport->iport_prev->iport_next = iport->iport_next;
1331 else
1332 fct_iport_list = iport->iport_next;
1333 mutex_exit(&fct_global_mutex);
1334 /*
1335 * At this time, there should be no outstanding and pending
1336 * I/Os, so we can just release resources.
1337 */
1338 ASSERT(iport->iport_total_alloced_ncmds == iport->iport_cached_ncmds);
1339 for (icmd = iport->iport_cached_cmdlist; icmd; icmd = next_icmd) {
1340 next_icmd = icmd->icmd_next;
1341 fct_free(icmd->icmd_cmd);
1342 }
1343 mutex_destroy(&iport->iport_cached_cmd_lock);
1344 kmem_free(iport->iport_cmd_slots, port->port_max_xchges *
1345 sizeof (fct_cmd_slot_t));
1346 kmem_free(iport->iport_rp_slots, port->port_max_logins *
1347 sizeof (fct_i_remote_port_t *));
1348 rw_destroy(&iport->iport_lock);
1349 cv_destroy(&iport->iport_worker_cv);
1350 sema_destroy(&iport->iport_rls_sema);
1351 mutex_destroy(&iport->iport_worker_lock);
1352 ddi_taskq_destroy(iport->iport_worker_taskq);
1353 if (iport->iport_rp_tb) {
1354 kmem_free(iport->iport_rp_tb, rportid_table_size *
1355 sizeof (fct_i_remote_port_t *));
1356 }
1357
1358 if (iport->iport_kstat_portstat) {
1359 kstat_delete(iport->iport_kstat_portstat);
1360 }
1361
1362 fct_log_local_port_event(port, ESC_SUNFC_PORT_DETACH);
1363 return (FCT_SUCCESS);
1364
1365 fct_deregport_fail1:;
1366 /* Restart the worker */
1367 atomic_and_32(&iport->iport_flags, ~IPORT_TERMINATE_WORKER);
1368 (void) ddi_taskq_dispatch(iport->iport_worker_taskq,
1369 fct_port_worker, port, DDI_SLEEP);
1370 /* Wait for taskq to start */
1371 while ((iport->iport_flags & IPORT_WORKER_RUNNING) == 0) {
1372 delay(1);
1373 }
1374 return (FCT_FAILURE);
1375 }
1376
1377 /* ARGSUSED */
1378 void
fct_handle_event(fct_local_port_t * port,int event_id,uint32_t event_flags,caddr_t arg)1379 fct_handle_event(fct_local_port_t *port, int event_id, uint32_t event_flags,
1380 caddr_t arg)
1381 {
1382 char info[FCT_INFO_LEN];
1383 fct_i_event_t *e;
1384 fct_i_local_port_t *iport = (fct_i_local_port_t *)
1385 port->port_fct_private;
1386
1387 e = kmem_zalloc(sizeof (fct_i_event_t), KM_NOSLEEP);
1388
1389 if (e == NULL) {
1390 /*
1391 * XXX Throw HBA fatal error event
1392 */
1393 (void) snprintf(info, sizeof (info),
1394 "fct_handle_event: iport-%p, allocation "
1395 "of fct_i_event failed", (void *)iport);
1396 (void) fct_port_shutdown(iport->iport_port,
1397 STMF_RFLAG_FATAL_ERROR | STMF_RFLAG_RESET, info);
1398 return;
1399 }
1400 /* Just queue the event */
1401 e->event_type = event_id;
1402 mutex_enter(&iport->iport_worker_lock);
1403 if (iport->iport_event_head == NULL) {
1404 iport->iport_event_head = iport->iport_event_tail = e;
1405 } else {
1406 iport->iport_event_tail->event_next = e;
1407 iport->iport_event_tail = e;
1408 }
1409 if (IS_WORKER_SLEEPING(iport))
1410 cv_signal(&iport->iport_worker_cv);
1411 mutex_exit(&iport->iport_worker_lock);
1412 }
1413
1414 /*
1415 * Called with iport_lock held as reader.
1416 */
1417 fct_i_remote_port_t *
fct_portid_to_portptr(fct_i_local_port_t * iport,uint32_t portid)1418 fct_portid_to_portptr(fct_i_local_port_t *iport, uint32_t portid)
1419 {
1420 fct_i_remote_port_t *irp;
1421
1422 irp = iport->iport_rp_tb[FCT_PORTID_HASH_FUNC(portid)];
1423 for (; irp != NULL; irp = irp->irp_next) {
1424 if (irp->irp_portid == portid)
1425 return (irp);
1426 }
1427
1428 return (NULL);
1429
1430 }
1431
1432 /*
1433 * Called with irp_lock held as writer.
1434 */
1435 void
fct_queue_rp(fct_i_local_port_t * iport,fct_i_remote_port_t * irp)1436 fct_queue_rp(fct_i_local_port_t *iport, fct_i_remote_port_t *irp)
1437 {
1438 int hash_key =
1439 FCT_PORTID_HASH_FUNC(irp->irp_portid);
1440
1441 irp->irp_next = iport->iport_rp_tb[hash_key];
1442 iport->iport_rp_tb[hash_key] = irp;
1443 iport->iport_nrps++;
1444 }
1445
1446 /*
1447 * Called with irp_lock and iport_lock held as writer.
1448 */
1449 void
fct_deque_rp(fct_i_local_port_t * iport,fct_i_remote_port_t * irp)1450 fct_deque_rp(fct_i_local_port_t *iport, fct_i_remote_port_t *irp)
1451 {
1452 fct_i_remote_port_t *irp_next = NULL;
1453 fct_i_remote_port_t *irp_last = NULL;
1454 int hash_key =
1455 FCT_PORTID_HASH_FUNC(irp->irp_portid);
1456
1457 irp_next = iport->iport_rp_tb[hash_key];
1458 irp_last = NULL;
1459 while (irp_next != NULL) {
1460 if (irp == irp_next) {
1461 if (irp->irp_flags & IRP_PLOGI_DONE) {
1462 atomic_dec_32(&iport->iport_nrps_login);
1463 }
1464 atomic_and_32(&irp->irp_flags,
1465 ~(IRP_PLOGI_DONE | IRP_PRLI_DONE));
1466 break;
1467 }
1468 irp_last = irp_next;
1469 irp_next = irp_next->irp_next;
1470 }
1471
1472 if (irp_next) {
1473 if (irp_last == NULL) {
1474 iport->iport_rp_tb[hash_key] =
1475 irp->irp_next;
1476 } else {
1477 irp_last->irp_next = irp->irp_next;
1478 }
1479 irp->irp_next = NULL;
1480 iport->iport_nrps--;
1481 }
1482 }
1483
1484 int
fct_is_irp_logging_out(fct_i_remote_port_t * irp,int force_implicit)1485 fct_is_irp_logging_out(fct_i_remote_port_t *irp, int force_implicit)
1486 {
1487 int logging_out = 0;
1488
1489 rw_enter(&irp->irp_lock, RW_WRITER);
1490 if ((irp->irp_flags & IRP_IN_DISCOVERY_QUEUE) == 0) {
1491 logging_out = 0;
1492 goto ilo_done;
1493 }
1494 if ((irp->irp_els_list == NULL) && (irp->irp_deregister_timer)) {
1495 if (force_implicit && irp->irp_nonfcp_xchg_count) {
1496 logging_out = 0;
1497 } else {
1498 logging_out = 1;
1499 }
1500 goto ilo_done;
1501 }
1502 if (irp->irp_els_list) {
1503 fct_i_cmd_t *icmd;
1504 /* Last session affecting ELS should be a LOGO */
1505 for (icmd = irp->irp_els_list; icmd; icmd = icmd->icmd_next) {
1506 uint8_t op = (ICMD_TO_ELS(icmd))->els_req_payload[0];
1507 if (op == ELS_OP_LOGO) {
1508 if (force_implicit) {
1509 if (icmd->icmd_flags & ICMD_IMPLICIT)
1510 logging_out = 1;
1511 else
1512 logging_out = 0;
1513 } else {
1514 logging_out = 1;
1515 }
1516 } else if ((op == ELS_OP_PLOGI) ||
1517 (op == ELS_OP_PRLI) ||
1518 (op == ELS_OP_PRLO) || (op == ELS_OP_TPRLO)) {
1519 logging_out = 0;
1520 }
1521 }
1522 }
1523 ilo_done:;
1524 rw_exit(&irp->irp_lock);
1525
1526 return (logging_out);
1527 }
1528
1529 /*
1530 * The force_implicit flag enforces the implicit semantics which may be
1531 * needed if a received logout got stuck e.g. a response to a received
1532 * LOGO never came back from the FCA.
1533 */
1534 int
fct_implicitly_logo_all(fct_i_local_port_t * iport,int force_implicit)1535 fct_implicitly_logo_all(fct_i_local_port_t *iport, int force_implicit)
1536 {
1537 fct_i_remote_port_t *irp = NULL;
1538 fct_cmd_t *cmd = NULL;
1539 int i = 0;
1540 int nports = 0;
1541
1542 if (!iport->iport_nrps) {
1543 return (nports);
1544 }
1545
1546 rw_enter(&iport->iport_lock, RW_WRITER);
1547 for (i = 0; i < rportid_table_size; i++) {
1548 irp = iport->iport_rp_tb[i];
1549 while (irp) {
1550 if ((!(irp->irp_flags & IRP_PLOGI_DONE)) &&
1551 (fct_is_irp_logging_out(irp, force_implicit))) {
1552 irp = irp->irp_next;
1553 continue;
1554 }
1555
1556 cmd = fct_create_solels(iport->iport_port, irp->irp_rp,
1557 1, ELS_OP_LOGO, 0, fct_logo_cb);
1558 if (cmd == NULL) {
1559 stmf_trace(iport->iport_alias,
1560 "fct_implictly_logo_all: cmd null");
1561 rw_exit(&iport->iport_lock);
1562
1563 return (nports);
1564 }
1565
1566 fct_post_implicit_logo(cmd);
1567 nports++;
1568 irp = irp->irp_next;
1569 }
1570 }
1571 rw_exit(&iport->iport_lock);
1572
1573 return (nports);
1574 }
1575
1576 void
fct_rehash(fct_i_local_port_t * iport)1577 fct_rehash(fct_i_local_port_t *iport)
1578 {
1579 fct_i_remote_port_t **iport_rp_tb_tmp;
1580 fct_i_remote_port_t **iport_rp_tb_new;
1581 fct_i_remote_port_t *irp;
1582 fct_i_remote_port_t *irp_next;
1583 int i;
1584
1585 iport_rp_tb_new = kmem_zalloc(rportid_table_size *
1586 sizeof (fct_i_remote_port_t *), KM_SLEEP);
1587 rw_enter(&iport->iport_lock, RW_WRITER);
1588 /* reconstruct the hash table */
1589 iport_rp_tb_tmp = iport->iport_rp_tb;
1590 iport->iport_rp_tb = iport_rp_tb_new;
1591 iport->iport_nrps = 0;
1592 for (i = 0; i < rportid_table_size; i++) {
1593 irp = iport_rp_tb_tmp[i];
1594 while (irp) {
1595 irp_next = irp->irp_next;
1596 fct_queue_rp(iport, irp);
1597 irp = irp_next;
1598 }
1599 }
1600 rw_exit(&iport->iport_lock);
1601 kmem_free(iport_rp_tb_tmp, rportid_table_size *
1602 sizeof (fct_i_remote_port_t *));
1603
1604 }
1605
1606 uint8_t
fct_local_port_cleanup_done(fct_i_local_port_t * iport)1607 fct_local_port_cleanup_done(fct_i_local_port_t *iport)
1608 {
1609 fct_i_remote_port_t *irp;
1610 int i;
1611
1612 if (iport->iport_nrps_login)
1613 return (0);
1614 /* loop all rps to check if the cmd have already been drained */
1615 for (i = 0; i < rportid_table_size; i++) {
1616 irp = iport->iport_rp_tb[i];
1617 while (irp) {
1618 if (irp->irp_fcp_xchg_count ||
1619 irp->irp_nonfcp_xchg_count)
1620 return (0);
1621 irp = irp->irp_next;
1622 }
1623 }
1624 return (1);
1625 }
1626
1627 fct_cmd_t *
fct_scsi_task_alloc(fct_local_port_t * port,uint16_t rp_handle,uint32_t rportid,uint8_t * lun,uint16_t cdb_length,uint16_t task_ext)1628 fct_scsi_task_alloc(fct_local_port_t *port, uint16_t rp_handle,
1629 uint32_t rportid, uint8_t *lun, uint16_t cdb_length,
1630 uint16_t task_ext)
1631 {
1632 fct_cmd_t *cmd;
1633 fct_i_cmd_t *icmd;
1634 fct_i_local_port_t *iport =
1635 (fct_i_local_port_t *)port->port_fct_private;
1636 fct_i_remote_port_t *irp;
1637 scsi_task_t *task;
1638 fct_remote_port_t *rp;
1639 uint16_t cmd_slot;
1640
1641 rw_enter(&iport->iport_lock, RW_READER);
1642 if ((iport->iport_link_state & S_LINK_ONLINE) == 0) {
1643 rw_exit(&iport->iport_lock);
1644 stmf_trace(iport->iport_alias, "cmd alloc called while the port"
1645 " was offline");
1646 return (NULL);
1647 }
1648
1649 if (rp_handle == FCT_HANDLE_NONE) {
1650 irp = fct_portid_to_portptr(iport, rportid);
1651 if (irp == NULL) {
1652 rw_exit(&iport->iport_lock);
1653 stmf_trace(iport->iport_alias, "cmd received from "
1654 "non existent port %x", rportid);
1655 return (NULL);
1656 }
1657 } else {
1658 if ((rp_handle >= port->port_max_logins) ||
1659 ((irp = iport->iport_rp_slots[rp_handle]) == NULL)) {
1660 rw_exit(&iport->iport_lock);
1661 stmf_trace(iport->iport_alias, "cmd received from "
1662 "invalid port handle %x", rp_handle);
1663 return (NULL);
1664 }
1665 }
1666 rp = irp->irp_rp;
1667
1668 rw_enter(&irp->irp_lock, RW_READER);
1669 if ((irp->irp_flags & IRP_PRLI_DONE) == 0) {
1670 rw_exit(&irp->irp_lock);
1671 rw_exit(&iport->iport_lock);
1672 stmf_trace(iport->iport_alias, "cmd alloc called while fcp "
1673 "login was not done. portid=%x, rp=%p", rp->rp_id, rp);
1674 return (NULL);
1675 }
1676
1677 mutex_enter(&iport->iport_cached_cmd_lock);
1678 if ((icmd = iport->iport_cached_cmdlist) != NULL) {
1679 iport->iport_cached_cmdlist = icmd->icmd_next;
1680 iport->iport_cached_ncmds--;
1681 cmd = icmd->icmd_cmd;
1682 } else {
1683 icmd = NULL;
1684 }
1685 mutex_exit(&iport->iport_cached_cmd_lock);
1686 if (icmd == NULL) {
1687 cmd = (fct_cmd_t *)fct_alloc(FCT_STRUCT_CMD_FCP_XCHG,
1688 port->port_fca_fcp_cmd_size, 0);
1689 if (cmd == NULL) {
1690 rw_exit(&irp->irp_lock);
1691 rw_exit(&iport->iport_lock);
1692 stmf_trace(iport->iport_alias, "Ran out of "
1693 "memory, port=%p", port);
1694 return (NULL);
1695 }
1696
1697 icmd = (fct_i_cmd_t *)cmd->cmd_fct_private;
1698 icmd->icmd_next = NULL;
1699 cmd->cmd_port = port;
1700 atomic_inc_32(&iport->iport_total_alloced_ncmds);
1701 }
1702
1703 /*
1704 * The accuracy of iport_max_active_ncmds is not important
1705 */
1706 if ((iport->iport_total_alloced_ncmds - iport->iport_cached_ncmds) >
1707 iport->iport_max_active_ncmds) {
1708 iport->iport_max_active_ncmds =
1709 iport->iport_total_alloced_ncmds -
1710 iport->iport_cached_ncmds;
1711 }
1712
1713 /* Lets get a slot */
1714 cmd_slot = fct_alloc_cmd_slot(iport, cmd);
1715 if (cmd_slot == FCT_SLOT_EOL) {
1716 rw_exit(&irp->irp_lock);
1717 rw_exit(&iport->iport_lock);
1718 stmf_trace(iport->iport_alias, "Ran out of xchg resources");
1719 cmd->cmd_handle = 0;
1720 fct_cmd_free(cmd);
1721 return (NULL);
1722 }
1723 atomic_inc_16(&irp->irp_fcp_xchg_count);
1724 cmd->cmd_rp = rp;
1725 icmd->icmd_flags |= ICMD_IN_TRANSITION | ICMD_KNOWN_TO_FCA;
1726 rw_exit(&irp->irp_lock);
1727 rw_exit(&iport->iport_lock);
1728
1729 icmd->icmd_start_time = ddi_get_lbolt();
1730
1731 cmd->cmd_specific = stmf_task_alloc(port->port_lport, irp->irp_session,
1732 lun, cdb_length, task_ext);
1733 if ((task = (scsi_task_t *)cmd->cmd_specific) != NULL) {
1734 task->task_port_private = cmd;
1735 return (cmd);
1736 }
1737
1738 fct_cmd_free(cmd);
1739
1740 return (NULL);
1741 }
1742
1743 void
fct_scsi_task_free(scsi_task_t * task)1744 fct_scsi_task_free(scsi_task_t *task)
1745 {
1746 fct_cmd_t *cmd = (fct_cmd_t *)task->task_port_private;
1747
1748 cmd->cmd_comp_status = task->task_completion_status;
1749 fct_cmd_free(cmd);
1750 }
1751
1752 void
fct_post_rcvd_cmd(fct_cmd_t * cmd,stmf_data_buf_t * dbuf)1753 fct_post_rcvd_cmd(fct_cmd_t *cmd, stmf_data_buf_t *dbuf)
1754 {
1755 fct_dbuf_store_t *fds;
1756
1757 if (cmd->cmd_type == FCT_CMD_FCP_XCHG) {
1758 fct_i_cmd_t *icmd = (fct_i_cmd_t *)cmd->cmd_fct_private;
1759 fct_i_local_port_t *iport =
1760 (fct_i_local_port_t *)cmd->cmd_port->port_fct_private;
1761 fct_i_remote_port_t *irp =
1762 (fct_i_remote_port_t *)cmd->cmd_rp->rp_fct_private;
1763 scsi_task_t *task = (scsi_task_t *)cmd->cmd_specific;
1764
1765 uint16_t irp_task = irp->irp_fcp_xchg_count;
1766 uint32_t load = iport->iport_total_alloced_ncmds -
1767 iport->iport_cached_ncmds;
1768
1769 DTRACE_FC_4(scsi__command,
1770 fct_cmd_t, cmd,
1771 fct_i_local_port_t, iport,
1772 scsi_task_t, task,
1773 fct_i_remote_port_t, irp);
1774
1775 if (load >= iport->iport_task_green_limit) {
1776 if ((load < iport->iport_task_yellow_limit &&
1777 irp_task >= 4) ||
1778 (load >= iport->iport_task_yellow_limit &&
1779 load < iport->iport_task_red_limit &&
1780 irp_task >= 1) ||
1781 (load >= iport->iport_task_red_limit))
1782 task->task_additional_flags |=
1783 TASK_AF_PORT_LOAD_HIGH;
1784 }
1785 /*
1786 * If the target driver accepts sglists, fill in task fields.
1787 */
1788 fds = cmd->cmd_port->port_fds;
1789 if (fds->fds_setup_dbuf != NULL) {
1790 task->task_additional_flags |= TASK_AF_ACCEPT_LU_DBUF;
1791 task->task_copy_threshold = fds->fds_copy_threshold;
1792 task->task_max_xfer_len = fds->fds_max_sgl_xfer_len;
1793 /*
1794 * A single stream load encounters a little extra
1795 * latency if large xfers are done in 1 chunk.
1796 * Give a hint to the LU that starting the xfer
1797 * with a smaller chunk would be better in this case.
1798 * For any other load, use maximum chunk size.
1799 */
1800 if (load == 1) {
1801 /* estimate */
1802 task->task_1st_xfer_len = 128*1024;
1803 } else {
1804 /* zero means no hint */
1805 task->task_1st_xfer_len = 0;
1806 }
1807 }
1808
1809 stmf_post_task((scsi_task_t *)cmd->cmd_specific, dbuf);
1810 atomic_and_32(&icmd->icmd_flags, ~ICMD_IN_TRANSITION);
1811 return;
1812 }
1813 /* We dont need dbuf for other cmds */
1814 if (dbuf) {
1815 cmd->cmd_port->port_fds->fds_free_data_buf(
1816 cmd->cmd_port->port_fds, dbuf);
1817 dbuf = NULL;
1818 }
1819 if (cmd->cmd_type == FCT_CMD_RCVD_ELS) {
1820 fct_handle_els(cmd);
1821 return;
1822 }
1823 if (cmd->cmd_type == FCT_CMD_RCVD_ABTS) {
1824 fct_handle_rcvd_abts(cmd);
1825 return;
1826 }
1827
1828 ASSERT(0);
1829 }
1830
1831 /*
1832 * This function bypasses fct_handle_els()
1833 */
1834 void
fct_post_implicit_logo(fct_cmd_t * cmd)1835 fct_post_implicit_logo(fct_cmd_t *cmd)
1836 {
1837 fct_local_port_t *port = cmd->cmd_port;
1838 fct_i_local_port_t *iport =
1839 (fct_i_local_port_t *)port->port_fct_private;
1840 fct_i_cmd_t *icmd = (fct_i_cmd_t *)cmd->cmd_fct_private;
1841 fct_remote_port_t *rp = cmd->cmd_rp;
1842 fct_i_remote_port_t *irp = (fct_i_remote_port_t *)rp->rp_fct_private;
1843
1844 icmd->icmd_start_time = ddi_get_lbolt();
1845
1846 rw_enter(&irp->irp_lock, RW_WRITER);
1847 atomic_or_32(&icmd->icmd_flags, ICMD_IMPLICIT_CMD_HAS_RESOURCE);
1848 atomic_inc_16(&irp->irp_nonfcp_xchg_count);
1849 atomic_inc_16(&irp->irp_sa_elses_count);
1850 /*
1851 * An implicit LOGO can also be posted to a irp where a PLOGI might
1852 * be in process. That PLOGI will reset this flag and decrement the
1853 * iport_nrps_login counter.
1854 */
1855 if (irp->irp_flags & IRP_PLOGI_DONE) {
1856 atomic_dec_32(&iport->iport_nrps_login);
1857 }
1858 atomic_and_32(&irp->irp_flags, ~(IRP_PLOGI_DONE | IRP_PRLI_DONE));
1859 atomic_or_32(&icmd->icmd_flags, ICMD_SESSION_AFFECTING);
1860 fct_post_to_discovery_queue(iport, irp, icmd);
1861 rw_exit(&irp->irp_lock);
1862 }
1863
1864 /*
1865 * called with iport_lock held, return the slot number
1866 */
1867 uint16_t
fct_alloc_cmd_slot(fct_i_local_port_t * iport,fct_cmd_t * cmd)1868 fct_alloc_cmd_slot(fct_i_local_port_t *iport, fct_cmd_t *cmd)
1869 {
1870 uint16_t cmd_slot;
1871 uint32_t old, new;
1872 fct_i_cmd_t *icmd = (fct_i_cmd_t *)cmd->cmd_fct_private;
1873
1874 do {
1875 old = iport->iport_next_free_slot;
1876 cmd_slot = old & 0xFFFF;
1877 if (cmd_slot == FCT_SLOT_EOL)
1878 return (cmd_slot);
1879 /*
1880 * We use high order 16 bits as a counter which keeps on
1881 * incrementing to avoid ABA issues with atomic lists.
1882 */
1883 new = ((old + (0x10000)) & 0xFFFF0000);
1884 new |= iport->iport_cmd_slots[cmd_slot].slot_next;
1885 } while (atomic_cas_32(&iport->iport_next_free_slot, old, new) != old);
1886
1887 atomic_dec_16(&iport->iport_nslots_free);
1888 iport->iport_cmd_slots[cmd_slot].slot_cmd = icmd;
1889 cmd->cmd_handle = (uint32_t)cmd_slot | 0x80000000 |
1890 (((uint32_t)(iport->iport_cmd_slots[cmd_slot].slot_uniq_cntr))
1891 << 24);
1892 return (cmd_slot);
1893 }
1894
1895 /*
1896 * If icmd is not NULL, irp_lock must be held
1897 */
1898 void
fct_post_to_discovery_queue(fct_i_local_port_t * iport,fct_i_remote_port_t * irp,fct_i_cmd_t * icmd)1899 fct_post_to_discovery_queue(fct_i_local_port_t *iport,
1900 fct_i_remote_port_t *irp, fct_i_cmd_t *icmd)
1901 {
1902 fct_i_cmd_t **p;
1903
1904 ASSERT(!MUTEX_HELD(&iport->iport_worker_lock));
1905 if (icmd) {
1906 icmd->icmd_next = NULL;
1907 for (p = &irp->irp_els_list; *p != NULL;
1908 p = &((*p)->icmd_next))
1909 ;
1910
1911 *p = icmd;
1912 atomic_or_32(&icmd->icmd_flags, ICMD_IN_IRP_QUEUE);
1913 }
1914
1915 mutex_enter(&iport->iport_worker_lock);
1916 if ((irp->irp_flags & IRP_IN_DISCOVERY_QUEUE) == 0) {
1917
1918 /*
1919 * CAUTION: do not grab local_port/remote_port locks after
1920 * grabbing the worker lock.
1921 */
1922 irp->irp_discovery_next = NULL;
1923 if (iport->iport_rpwe_tail) {
1924 iport->iport_rpwe_tail->irp_discovery_next = irp;
1925 iport->iport_rpwe_tail = irp;
1926 } else {
1927 iport->iport_rpwe_head = iport->iport_rpwe_tail = irp;
1928 }
1929
1930 atomic_or_32(&irp->irp_flags, IRP_IN_DISCOVERY_QUEUE);
1931 }
1932
1933 /*
1934 * We need always signal the port worker irrespective of the fact that
1935 * irp is already in discovery queue or not.
1936 */
1937 if (IS_WORKER_SLEEPING(iport)) {
1938 cv_signal(&iport->iport_worker_cv);
1939 }
1940 mutex_exit(&iport->iport_worker_lock);
1941 }
1942
1943 stmf_status_t
fct_xfer_scsi_data(scsi_task_t * task,stmf_data_buf_t * dbuf,uint32_t ioflags)1944 fct_xfer_scsi_data(scsi_task_t *task, stmf_data_buf_t *dbuf, uint32_t ioflags)
1945 {
1946 fct_cmd_t *cmd = (fct_cmd_t *)task->task_port_private;
1947
1948 DTRACE_FC_5(xfer__start,
1949 fct_cmd_t, cmd,
1950 fct_i_local_port_t, cmd->cmd_port->port_fct_private,
1951 scsi_task_t, task,
1952 fct_i_remote_port_t, cmd->cmd_rp->rp_fct_private,
1953 stmf_data_buf_t, dbuf);
1954
1955 return (cmd->cmd_port->port_xfer_scsi_data(cmd, dbuf, ioflags));
1956 }
1957
1958 void
fct_scsi_data_xfer_done(fct_cmd_t * cmd,stmf_data_buf_t * dbuf,uint32_t ioflags)1959 fct_scsi_data_xfer_done(fct_cmd_t *cmd, stmf_data_buf_t *dbuf, uint32_t ioflags)
1960 {
1961 fct_i_cmd_t *icmd = (fct_i_cmd_t *)cmd->cmd_fct_private;
1962 uint32_t old, new;
1963 uint32_t iof = 0;
1964
1965 DTRACE_FC_5(xfer__done,
1966 fct_cmd_t, cmd,
1967 fct_i_local_port_t, cmd->cmd_port->port_fct_private,
1968 scsi_task_t, ((scsi_task_t *)cmd->cmd_specific),
1969 fct_i_remote_port_t, cmd->cmd_rp->rp_fct_private,
1970 stmf_data_buf_t, dbuf);
1971
1972 if (ioflags & FCT_IOF_FCA_DONE) {
1973 do {
1974 old = new = icmd->icmd_flags;
1975 if (old & ICMD_BEING_ABORTED) {
1976 return;
1977 }
1978 new &= ~ICMD_KNOWN_TO_FCA;
1979 } while (atomic_cas_32(&icmd->icmd_flags, old, new) != old);
1980 iof = STMF_IOF_LPORT_DONE;
1981 cmd->cmd_comp_status = dbuf->db_xfer_status;
1982 }
1983
1984 if (icmd->icmd_flags & ICMD_BEING_ABORTED)
1985 return;
1986 stmf_data_xfer_done((scsi_task_t *)cmd->cmd_specific, dbuf, iof);
1987 }
1988
1989 stmf_status_t
fct_send_scsi_status(scsi_task_t * task,uint32_t ioflags)1990 fct_send_scsi_status(scsi_task_t *task, uint32_t ioflags)
1991 {
1992 fct_cmd_t *cmd = (fct_cmd_t *)task->task_port_private;
1993
1994 DTRACE_FC_4(scsi__response,
1995 fct_cmd_t, cmd,
1996 fct_i_local_port_t,
1997 (fct_i_local_port_t *)cmd->cmd_port->port_fct_private,
1998 scsi_task_t, task,
1999 fct_i_remote_port_t,
2000 (fct_i_remote_port_t *)cmd->cmd_rp->rp_fct_private);
2001
2002 return (cmd->cmd_port->port_send_cmd_response(cmd, ioflags));
2003 }
2004
2005 void
fct_send_response_done(fct_cmd_t * cmd,fct_status_t s,uint32_t ioflags)2006 fct_send_response_done(fct_cmd_t *cmd, fct_status_t s, uint32_t ioflags)
2007 {
2008 fct_i_cmd_t *icmd = (fct_i_cmd_t *)cmd->cmd_fct_private;
2009 fct_local_port_t *port = cmd->cmd_port;
2010 fct_i_local_port_t *iport = (fct_i_local_port_t *)
2011 port->port_fct_private;
2012 uint32_t old, new;
2013
2014 if ((ioflags & FCT_IOF_FCA_DONE) == 0) {
2015 /* Until we support confirmed completions, this is an error */
2016 fct_queue_cmd_for_termination(cmd, s);
2017 return;
2018 }
2019 do {
2020 old = new = icmd->icmd_flags;
2021 if (old & ICMD_BEING_ABORTED) {
2022 return;
2023 }
2024 new &= ~ICMD_KNOWN_TO_FCA;
2025 } while (atomic_cas_32(&icmd->icmd_flags, old, new) != old);
2026
2027 cmd->cmd_comp_status = s;
2028 if (cmd->cmd_type == FCT_CMD_FCP_XCHG) {
2029 stmf_send_status_done((scsi_task_t *)cmd->cmd_specific, s,
2030 STMF_IOF_LPORT_DONE);
2031 return;
2032 }
2033
2034 if (cmd->cmd_type == FCT_CMD_RCVD_ELS) {
2035 fct_cmd_free(cmd);
2036 return;
2037 } else if (cmd->cmd_type == FCT_CMD_SOL_ELS) {
2038 fct_handle_sol_els_completion(iport, icmd);
2039 } else if (cmd->cmd_type == FCT_CMD_SOL_CT) {
2040 /* Tell the caller that we are done */
2041 atomic_or_32(&icmd->icmd_flags, ICMD_CMD_COMPLETE);
2042 } else {
2043 ASSERT(0);
2044 }
2045 }
2046
2047 void
fct_cmd_free(fct_cmd_t * cmd)2048 fct_cmd_free(fct_cmd_t *cmd)
2049 {
2050 char info[FCT_INFO_LEN];
2051 fct_i_cmd_t *icmd = (fct_i_cmd_t *)cmd->cmd_fct_private;
2052 fct_local_port_t *port = cmd->cmd_port;
2053 fct_i_local_port_t *iport = (fct_i_local_port_t *)
2054 port->port_fct_private;
2055 fct_i_remote_port_t *irp = NULL;
2056 int do_abts_acc = 0;
2057 uint32_t old, new;
2058
2059 ASSERT(!mutex_owned(&iport->iport_worker_lock));
2060 /* Give the slot back */
2061 if (CMD_HANDLE_VALID(cmd->cmd_handle)) {
2062 uint16_t n = CMD_HANDLE_SLOT_INDEX(cmd->cmd_handle);
2063 fct_cmd_slot_t *slot;
2064
2065 /*
2066 * If anything went wrong, grab the lock as writer. This is
2067 * probably unnecessary.
2068 */
2069 if ((cmd->cmd_comp_status != FCT_SUCCESS) ||
2070 (icmd->icmd_flags & ICMD_ABTS_RECEIVED)) {
2071 rw_enter(&iport->iport_lock, RW_WRITER);
2072 } else {
2073 rw_enter(&iport->iport_lock, RW_READER);
2074 }
2075
2076 if ((icmd->icmd_flags & ICMD_ABTS_RECEIVED) &&
2077 (cmd->cmd_link != NULL)) {
2078 do_abts_acc = 1;
2079 }
2080
2081 /* XXX Validate slot before freeing */
2082
2083 slot = &iport->iport_cmd_slots[n];
2084 slot->slot_uniq_cntr++;
2085 slot->slot_cmd = NULL;
2086 do {
2087 old = iport->iport_next_free_slot;
2088 slot->slot_next = old & 0xFFFF;
2089 new = (old + 0x10000) & 0xFFFF0000;
2090 new |= slot->slot_no;
2091 } while (atomic_cas_32(&iport->iport_next_free_slot,
2092 old, new) != old);
2093 cmd->cmd_handle = 0;
2094 atomic_inc_16(&iport->iport_nslots_free);
2095 if (cmd->cmd_rp) {
2096 irp = (fct_i_remote_port_t *)
2097 cmd->cmd_rp->rp_fct_private;
2098 if (cmd->cmd_type == FCT_CMD_FCP_XCHG)
2099 atomic_dec_16(&irp->irp_fcp_xchg_count);
2100 else
2101 atomic_dec_16(&irp->irp_nonfcp_xchg_count);
2102 }
2103 rw_exit(&iport->iport_lock);
2104 } else if ((icmd->icmd_flags & ICMD_IMPLICIT) &&
2105 (icmd->icmd_flags & ICMD_IMPLICIT_CMD_HAS_RESOURCE)) {
2106 /* for implicit cmd, no cmd slot is used */
2107 if (cmd->cmd_rp) {
2108 irp = (fct_i_remote_port_t *)
2109 cmd->cmd_rp->rp_fct_private;
2110 if (cmd->cmd_type == FCT_CMD_FCP_XCHG)
2111 atomic_dec_16(&irp->irp_fcp_xchg_count);
2112 else
2113 atomic_dec_16(&irp->irp_nonfcp_xchg_count);
2114 }
2115 }
2116
2117 if (do_abts_acc) {
2118 fct_cmd_t *lcmd = cmd->cmd_link;
2119 fct_fill_abts_acc(lcmd);
2120 if (port->port_send_cmd_response(lcmd,
2121 FCT_IOF_FORCE_FCA_DONE) != FCT_SUCCESS) {
2122 /*
2123 * XXX Throw HBA fatal error event
2124 * Later shutdown svc will terminate the ABTS in the end
2125 */
2126 (void) snprintf(info, sizeof (info),
2127 "fct_cmd_free: iport-%p, ABTS_ACC"
2128 " port_send_cmd_response failed", (void *)iport);
2129 (void) fct_port_shutdown(iport->iport_port,
2130 STMF_RFLAG_FATAL_ERROR | STMF_RFLAG_RESET, info);
2131 return;
2132 } else {
2133 fct_cmd_free(lcmd);
2134 cmd->cmd_link = NULL;
2135 }
2136 }
2137
2138 /* Free the cmd */
2139 if (cmd->cmd_type == FCT_CMD_FCP_XCHG) {
2140 if (iport->iport_cached_ncmds < max_cached_ncmds) {
2141 icmd->icmd_flags = 0;
2142 mutex_enter(&iport->iport_cached_cmd_lock);
2143 icmd->icmd_next = iport->iport_cached_cmdlist;
2144 iport->iport_cached_cmdlist = icmd;
2145 iport->iport_cached_ncmds++;
2146 mutex_exit(&iport->iport_cached_cmd_lock);
2147 } else {
2148 atomic_dec_32(&iport->iport_total_alloced_ncmds);
2149 fct_free(cmd);
2150 }
2151 } else {
2152 fct_free(cmd);
2153 }
2154 }
2155
2156 /* ARGSUSED */
2157 stmf_status_t
fct_scsi_abort(stmf_local_port_t * lport,int abort_cmd,void * arg,uint32_t flags)2158 fct_scsi_abort(stmf_local_port_t *lport, int abort_cmd, void *arg,
2159 uint32_t flags)
2160 {
2161 stmf_status_t ret = STMF_SUCCESS;
2162 scsi_task_t *task;
2163 fct_cmd_t *cmd;
2164 fct_i_cmd_t *icmd;
2165 fct_local_port_t *port;
2166 uint32_t old, new;
2167
2168 ASSERT(abort_cmd == STMF_LPORT_ABORT_TASK);
2169
2170 task = (scsi_task_t *)arg;
2171 cmd = (fct_cmd_t *)task->task_port_private;
2172 icmd = (fct_i_cmd_t *)cmd->cmd_fct_private;
2173 port = (fct_local_port_t *)lport->lport_port_private;
2174
2175 do {
2176 old = new = icmd->icmd_flags;
2177 if ((old & ICMD_KNOWN_TO_FCA) == 0)
2178 return (STMF_NOT_FOUND);
2179 ASSERT((old & ICMD_FCA_ABORT_CALLED) == 0);
2180 new |= ICMD_BEING_ABORTED | ICMD_FCA_ABORT_CALLED;
2181 } while (atomic_cas_32(&icmd->icmd_flags, old, new) != old);
2182 ret = port->port_abort_cmd(port, cmd, 0);
2183 if ((ret == FCT_NOT_FOUND) || (ret == FCT_ABORT_SUCCESS)) {
2184 atomic_and_32(&icmd->icmd_flags, ~ICMD_KNOWN_TO_FCA);
2185 } else if (ret == FCT_BUSY) {
2186 atomic_and_32(&icmd->icmd_flags, ~ICMD_FCA_ABORT_CALLED);
2187 }
2188
2189 return (ret);
2190 }
2191
2192 void
fct_ctl(struct stmf_local_port * lport,int cmd,void * arg)2193 fct_ctl(struct stmf_local_port *lport, int cmd, void *arg)
2194 {
2195 fct_local_port_t *port;
2196 fct_i_local_port_t *iport;
2197 stmf_change_status_t st;
2198 stmf_change_status_t *pst;
2199
2200 ASSERT((cmd == STMF_CMD_LPORT_ONLINE) ||
2201 (cmd == STMF_ACK_LPORT_ONLINE_COMPLETE) ||
2202 (cmd == STMF_CMD_LPORT_OFFLINE) ||
2203 (cmd == STMF_ACK_LPORT_OFFLINE_COMPLETE) ||
2204 (cmd == FCT_CMD_PORT_ONLINE_COMPLETE) ||
2205 (cmd == FCT_CMD_PORT_OFFLINE_COMPLETE));
2206
2207 port = (fct_local_port_t *)lport->lport_port_private;
2208 pst = (stmf_change_status_t *)arg;
2209 st.st_completion_status = STMF_SUCCESS;
2210 st.st_additional_info = NULL;
2211
2212 iport = (fct_i_local_port_t *)port->port_fct_private;
2213 /*
2214 * We are mostly a passthrough, except during offline.
2215 */
2216 switch (cmd) {
2217 case STMF_CMD_LPORT_ONLINE:
2218 if (iport->iport_state == FCT_STATE_ONLINE)
2219 st.st_completion_status = STMF_ALREADY;
2220 else if (iport->iport_state != FCT_STATE_OFFLINE)
2221 st.st_completion_status = STMF_INVALID_ARG;
2222 if (st.st_completion_status != STMF_SUCCESS) {
2223 (void) stmf_ctl(STMF_CMD_LPORT_ONLINE_COMPLETE, lport,
2224 &st);
2225 break;
2226 }
2227 iport->iport_state_not_acked = 1;
2228 iport->iport_state = FCT_STATE_ONLINING;
2229 port->port_ctl(port, FCT_CMD_PORT_ONLINE, arg);
2230 break;
2231 case FCT_CMD_PORT_ONLINE_COMPLETE:
2232 ASSERT(iport->iport_state == FCT_STATE_ONLINING);
2233 if (pst->st_completion_status != FCT_SUCCESS) {
2234 iport->iport_state = FCT_STATE_OFFLINE;
2235 iport->iport_state_not_acked = 0;
2236 } else {
2237 iport->iport_state = FCT_STATE_ONLINE;
2238 }
2239 (void) stmf_ctl(STMF_CMD_LPORT_ONLINE_COMPLETE, lport, arg);
2240 break;
2241 case STMF_ACK_LPORT_ONLINE_COMPLETE:
2242 ASSERT(iport->iport_state == FCT_STATE_ONLINE);
2243 iport->iport_state_not_acked = 0;
2244 port->port_ctl(port, FCT_ACK_PORT_ONLINE_COMPLETE, arg);
2245 break;
2246
2247 case STMF_CMD_LPORT_OFFLINE:
2248 if (iport->iport_state == FCT_STATE_OFFLINE)
2249 st.st_completion_status = STMF_ALREADY;
2250 else if (iport->iport_state != FCT_STATE_ONLINE)
2251 st.st_completion_status = STMF_INVALID_ARG;
2252 if (st.st_completion_status != STMF_SUCCESS) {
2253 (void) stmf_ctl(STMF_CMD_LPORT_OFFLINE_COMPLETE, lport,
2254 &st);
2255 break;
2256 }
2257 iport->iport_state_not_acked = 1;
2258 iport->iport_state = FCT_STATE_OFFLINING;
2259 port->port_ctl(port, FCT_CMD_PORT_OFFLINE, arg);
2260 break;
2261 case FCT_CMD_PORT_OFFLINE_COMPLETE:
2262 ASSERT(iport->iport_state == FCT_STATE_OFFLINING);
2263 if (pst->st_completion_status != FCT_SUCCESS) {
2264 iport->iport_state = FCT_STATE_ONLINE;
2265 iport->iport_state_not_acked = 0;
2266 (void) stmf_ctl(STMF_CMD_LPORT_OFFLINE_COMPLETE, lport,
2267 pst);
2268 break;
2269 }
2270
2271 /*
2272 * If FCA's offline was successful, we dont tell stmf yet.
2273 * Becasue now we have to do the cleanup before we go upto
2274 * stmf. That cleanup is done by the worker thread.
2275 */
2276
2277 /* FCA is offline, post a link down, its harmless anyway */
2278 fct_handle_event(port, FCT_EVENT_LINK_DOWN, 0, 0);
2279
2280 /* Trigger port offline processing by the worker */
2281 iport->iport_offline_prstate = FCT_OPR_START;
2282 break;
2283 case STMF_ACK_LPORT_OFFLINE_COMPLETE:
2284 ASSERT(iport->iport_state == FCT_STATE_OFFLINE);
2285 iport->iport_state_not_acked = 0;
2286 port->port_ctl(port, FCT_ACK_PORT_OFFLINE_COMPLETE, arg);
2287 break;
2288 }
2289 }
2290
2291 /* ARGSUSED */
2292 stmf_status_t
fct_info(uint32_t cmd,stmf_local_port_t * lport,void * arg,uint8_t * buf,uint32_t * bufsizep)2293 fct_info(uint32_t cmd, stmf_local_port_t *lport, void *arg, uint8_t *buf,
2294 uint32_t *bufsizep)
2295 {
2296 return (STMF_NOT_SUPPORTED);
2297 }
2298
2299 /*
2300 * implicit: if it's true, it means it will only be used in fct module, or else
2301 * it will be sent to the link.
2302 */
2303 fct_cmd_t *
fct_create_solels(fct_local_port_t * port,fct_remote_port_t * rp,int implicit,uchar_t elsop,uint32_t wkdid,fct_icmd_cb_t icmdcb)2304 fct_create_solels(fct_local_port_t *port, fct_remote_port_t *rp, int implicit,
2305 uchar_t elsop, uint32_t wkdid, fct_icmd_cb_t icmdcb)
2306 {
2307 fct_cmd_t *cmd = NULL;
2308 fct_i_cmd_t *icmd = NULL;
2309 fct_els_t *els = NULL;
2310 fct_i_remote_port_t *irp = NULL;
2311 uint8_t *p = NULL;
2312 uint32_t ptid = 0;
2313
2314 cmd = (fct_cmd_t *)fct_alloc(FCT_STRUCT_CMD_SOL_ELS,
2315 port->port_fca_sol_els_private_size, 0);
2316 if (!cmd) {
2317 return (NULL);
2318 }
2319
2320 if (rp) {
2321 irp = RP_TO_IRP(rp);
2322 } else if (((irp = fct_portid_to_portptr(PORT_TO_IPORT(port),
2323 wkdid)) == NULL) && (elsop != ELS_OP_PLOGI)) {
2324 stmf_trace(PORT_TO_IPORT(port)->iport_alias,
2325 "fct_create_solels: Must PLOGI to %x first", wkdid);
2326 fct_free(cmd);
2327 return (NULL);
2328 }
2329
2330 cmd->cmd_port = port;
2331 cmd->cmd_oxid = PTR2INT(cmd, uint16_t);
2332 cmd->cmd_rxid = 0xFFFF;
2333 cmd->cmd_handle = 0;
2334 icmd = CMD_TO_ICMD(cmd);
2335 els = ICMD_TO_ELS(icmd);
2336 icmd->icmd_cb = icmdcb;
2337 if (irp) {
2338 cmd->cmd_rp = irp->irp_rp;
2339 cmd->cmd_rp_handle = irp->irp_rp->rp_handle;
2340 cmd->cmd_rportid = irp->irp_rp->rp_id;
2341 } else {
2342 cmd->cmd_rp_handle = FCT_HANDLE_NONE;
2343 cmd->cmd_rportid = wkdid;
2344 }
2345 cmd->cmd_lportid = (PORT_TO_IPORT(port))->iport_link_info.portid;
2346
2347 if (implicit) {
2348 /*
2349 * Since we will not send it to FCA, so we only allocate space
2350 */
2351 ASSERT(elsop & (ELS_OP_LOGO | ELS_OP_PLOGI));
2352 icmd->icmd_flags |= ICMD_IMPLICIT;
2353 if (elsop == ELS_OP_LOGO) {
2354 /*
2355 * Handling implicit LOGO should dependent on as less
2356 * as resources. So a trick here.
2357 */
2358 els->els_req_size = 1;
2359 els->els_req_payload = cmd->cmd_fca_private;
2360 } else {
2361 els->els_req_alloc_size = els->els_req_size = 116;
2362 els->els_resp_alloc_size = els->els_resp_size = 116;
2363 els->els_req_payload = (uint8_t *)
2364 kmem_zalloc(els->els_req_size, KM_SLEEP);
2365 els->els_resp_payload = (uint8_t *)
2366 kmem_zalloc(els->els_resp_size, KM_SLEEP);
2367 }
2368 } else {
2369 /*
2370 * Allocate space for its request and response
2371 * Fill the request payload according to spec.
2372 */
2373 switch (elsop) {
2374 case ELS_OP_LOGO:
2375 els->els_resp_alloc_size = els->els_resp_size = 4;
2376 els->els_resp_payload = (uint8_t *)kmem_zalloc(
2377 els->els_resp_size, KM_SLEEP);
2378 els->els_req_alloc_size = els->els_req_size = 16;
2379 els->els_req_payload = (uint8_t *)kmem_zalloc(
2380 els->els_req_size, KM_SLEEP);
2381 ptid = PORT_TO_IPORT(port)->iport_link_info.portid;
2382 fct_value_to_netbuf(ptid, els->els_req_payload + 5, 3);
2383 bcopy(port->port_pwwn, els->els_req_payload + 8, 8);
2384 break;
2385
2386 case ELS_OP_RSCN:
2387 els->els_resp_alloc_size = els->els_resp_size = 4;
2388 els->els_resp_payload = (uint8_t *)kmem_zalloc(
2389 els->els_resp_size, KM_SLEEP);
2390 els->els_req_size = els->els_req_alloc_size = 8;
2391 els->els_req_payload = (uint8_t *)kmem_zalloc(
2392 els->els_req_size, KM_SLEEP);
2393 els->els_req_payload[1] = 0x04;
2394 els->els_req_payload[3] = 0x08;
2395 els->els_req_payload[4] |= 0x80;
2396 ptid = PORT_TO_IPORT(port)->iport_link_info.portid;
2397 fct_value_to_netbuf(ptid, els->els_req_payload + 5, 3);
2398 break;
2399
2400 case ELS_OP_PLOGI:
2401 els->els_resp_alloc_size = els->els_resp_size = 116;
2402 els->els_resp_payload = (uint8_t *)
2403 kmem_zalloc(els->els_resp_size, KM_SLEEP);
2404 els->els_req_alloc_size = els->els_req_size = 116;
2405 p = els->els_req_payload = (uint8_t *)
2406 kmem_zalloc(els->els_req_size, KM_SLEEP);
2407 bcopy(port->port_pwwn, p + 20, 8);
2408 bcopy(port->port_nwwn, p + 28, 8);
2409
2410 /*
2411 * Common service parameters
2412 */
2413 p[0x04] = 0x09; /* high version */
2414 p[0x05] = 0x08; /* low version */
2415 p[0x06] = 0x00; /* BB credit: 0x0065 */
2416 p[0x07] = 0x65;
2417
2418 /* CI0: Continuously Increasing Offset - 1 */
2419 /* RRO: Randomly Relative Offset - 0 */
2420 /* VVV: Vendor Version Level - 0 */
2421 /* N-F: N or F Port Payload Sender - 0 (N) */
2422 /* BBM: BB Credit Management - 0 (Normal) */
2423 p[0x08] = 0x80;
2424 p[0x09] = 0x00;
2425
2426 /* Max RX size */
2427 p[0x0A] = 0x08;
2428 p[0x0B] = 0x00;
2429
2430 /* NPTCS: N Port Total Concurrent Sequences - 0x0000 */
2431 p[0x0C] = 0x00;
2432 p[0x0D] = 0x00;
2433
2434 /* ROIC: Relative Offset By Info - 0xFFFF */
2435 p[0x0E] = 0xFF;
2436 p[0x0F] = 0xFF;
2437
2438 /* EDTOV: Error Detect Timeout - 0x000007D0 */
2439 p[0x10] = 0x00;
2440 p[0x11] = 0x00;
2441 p[0x12] = 0x07;
2442 p[0x13] = 0xD0;
2443
2444 /*
2445 * Class-3 Parameters
2446 */
2447 /* C3-VAL: Class 3 Value - 1 */
2448 /* C3-XID: X_ID Reassignment - 0 */
2449 /* C3-IPA: Initial Process Assignment */
2450 /* C3-AI-DCC: Data compression capable */
2451 /* C3-AI-DC-HB: Data compression history buffer size */
2452 /* C3-AI-DCE: Data encrytion capable */
2453 /* C3-AI-CSC: Clock synchronization capable */
2454 /* C3-ErrPol: Error pliciy */
2455 /* C3-CatSeq: Information Cat. Per Sequence */
2456 /* C3-AR-DCC: */
2457 /* C3-AR-DC-HB: */
2458 /* C3-AR-DCE: */
2459 /* C3-AR-CSC */
2460 p[0x44] = 0x80;
2461 p[0x45] = 0x00;
2462 p[0x46] = 0x00;
2463 p[0x47] = 0x00;
2464 p[0x48] = 0x00;
2465 p[0x49] = 0x00;
2466
2467 /* C3-RxSize: Class 3 receive data size */
2468 p[0x4A] = 0x08;
2469 p[0x4B] = 0x00;
2470
2471 /* C3-ConSeq: Class 3 Concourrent sequences */
2472 p[0x4C] = 0x00;
2473 p[0x4D] = 0xFF;
2474
2475 /* C3-OSPE: Class 3 open sequence per exchange */
2476 p[0x50] = 0x00;
2477 p[0x51] = 0x01;
2478
2479 break;
2480
2481 case ELS_OP_SCR:
2482 els->els_resp_alloc_size = els->els_resp_size = 4;
2483 els->els_resp_payload = (uint8_t *)
2484 kmem_zalloc(els->els_resp_size, KM_SLEEP);
2485 els->els_req_alloc_size = els->els_req_size = 8;
2486 p = els->els_req_payload = (uint8_t *)
2487 kmem_zalloc(els->els_req_size, KM_SLEEP);
2488 p[7] = FC_SCR_FULL_REGISTRATION;
2489 break;
2490 case ELS_OP_RLS:
2491 els->els_resp_alloc_size = els->els_resp_size = 28;
2492 els->els_resp_payload = (uint8_t *)
2493 kmem_zalloc(els->els_resp_size, KM_SLEEP);
2494 els->els_req_alloc_size = els->els_req_size = 8;
2495 p = els->els_req_payload = (uint8_t *)
2496 kmem_zalloc(els->els_req_size, KM_SLEEP);
2497 ptid = PORT_TO_IPORT(port)->iport_link_info.portid;
2498 fct_value_to_netbuf(ptid, els->els_req_payload + 5, 3);
2499 break;
2500
2501 default:
2502 ASSERT(0);
2503 }
2504 }
2505
2506 els->els_req_payload[0] = elsop;
2507 return (cmd);
2508 }
2509
2510 fct_cmd_t *
fct_create_solct(fct_local_port_t * port,fct_remote_port_t * query_rp,uint16_t ctop,fct_icmd_cb_t icmdcb)2511 fct_create_solct(fct_local_port_t *port, fct_remote_port_t *query_rp,
2512 uint16_t ctop, fct_icmd_cb_t icmdcb)
2513 {
2514 fct_cmd_t *cmd = NULL;
2515 fct_i_cmd_t *icmd = NULL;
2516 fct_sol_ct_t *ct = NULL;
2517 uint8_t *p = NULL;
2518 fct_i_remote_port_t *irp = NULL;
2519 fct_i_local_port_t *iport = NULL;
2520 char *nname = NULL;
2521 int namelen = 0;
2522
2523 /*
2524 * Allocate space
2525 */
2526 cmd = fct_alloc(FCT_STRUCT_CMD_SOL_CT,
2527 port->port_fca_sol_ct_private_size, 0);
2528 if (!cmd) {
2529 return (NULL);
2530 }
2531
2532 /*
2533 * We should have PLOGIed to the name server (0xFFFFFC)
2534 * Caution: this irp is not query_rp->rp_fct_private.
2535 */
2536 irp = fct_portid_to_portptr((fct_i_local_port_t *)
2537 port->port_fct_private, FS_NAME_SERVER);
2538 if (irp == NULL) {
2539 stmf_trace(PORT_TO_IPORT(port)->iport_alias,
2540 "fct_create_solct: Must PLOGI name server first");
2541 fct_free(cmd);
2542 return (NULL);
2543 }
2544
2545 cmd->cmd_port = port;
2546 cmd->cmd_rp = irp->irp_rp;
2547 cmd->cmd_rp_handle = irp->irp_rp->rp_handle;
2548 cmd->cmd_rportid = irp->irp_rp->rp_id;
2549 cmd->cmd_lportid = (PORT_TO_IPORT(port))->iport_link_info.portid;
2550 cmd->cmd_oxid = PTR2INT(cmd, uint16_t);
2551 cmd->cmd_rxid = 0xFFFF;
2552 cmd->cmd_handle = 0;
2553 icmd = CMD_TO_ICMD(cmd);
2554 ct = ICMD_TO_CT(icmd);
2555 icmd->icmd_cb = icmdcb;
2556 iport = ICMD_TO_IPORT(icmd);
2557
2558 switch (ctop) {
2559 case NS_GSNN_NN:
2560 /*
2561 * Allocate max space for its sybolic name
2562 */
2563 ct->ct_resp_alloc_size = ct->ct_resp_size = 272;
2564 ct->ct_resp_payload = (uint8_t *)kmem_zalloc(ct->ct_resp_size,
2565 KM_SLEEP);
2566
2567 ct->ct_req_size = ct->ct_req_alloc_size = 24;
2568 p = ct->ct_req_payload = (uint8_t *)kmem_zalloc(ct->ct_req_size,
2569 KM_SLEEP);
2570
2571 bcopy(query_rp->rp_nwwn, p + 16, 8);
2572 break;
2573
2574 case NS_RNN_ID:
2575 ct->ct_resp_alloc_size = ct->ct_resp_size = 16;
2576 ct->ct_resp_payload = (uint8_t *)kmem_zalloc(ct->ct_resp_size,
2577 KM_SLEEP);
2578 ct->ct_req_size = ct->ct_req_alloc_size = 28;
2579 p = ct->ct_req_payload = (uint8_t *)kmem_zalloc(ct->ct_req_size,
2580 KM_SLEEP);
2581
2582 /*
2583 * Port Identifier
2584 */
2585 p[17] = (iport->iport_link_info.portid >> 16) & 0xFF;
2586 p[18] = (iport->iport_link_info.portid >> 8) & 0xFF;
2587 p[19] = (iport->iport_link_info.portid >> 0) & 0xFF;
2588
2589 /*
2590 * Node Name
2591 */
2592 bcopy(port->port_nwwn, p + 20, 8);
2593 break;
2594
2595 case NS_RCS_ID:
2596 ct->ct_resp_alloc_size = ct->ct_resp_size = 16;
2597 ct->ct_resp_payload = (uint8_t *)kmem_zalloc(ct->ct_resp_size,
2598 KM_SLEEP);
2599 ct->ct_req_size = ct->ct_req_alloc_size = 24;
2600 p = ct->ct_req_payload = (uint8_t *)kmem_zalloc(ct->ct_req_size,
2601 KM_SLEEP);
2602
2603 /*
2604 * Port Identifier
2605 */
2606 p[17] = (iport->iport_link_info.portid >> 16) & 0xFF;
2607 p[18] = (iport->iport_link_info.portid >> 8) & 0xFF;
2608 p[19] = (iport->iport_link_info.portid >> 0) & 0xFF;
2609
2610 /*
2611 * Class of Service
2612 */
2613 *(p + 23) = FC_NS_CLASS3;
2614 break;
2615
2616 case NS_RFT_ID:
2617 ct->ct_resp_alloc_size = ct->ct_resp_size = 16;
2618 ct->ct_resp_payload = (uint8_t *)kmem_zalloc(ct->ct_resp_size,
2619 KM_SLEEP);
2620 ct->ct_req_size = ct->ct_req_alloc_size = 52;
2621 p = ct->ct_req_payload = (uint8_t *)kmem_zalloc(ct->ct_req_size,
2622 KM_SLEEP);
2623
2624 /*
2625 * Port Identifier
2626 */
2627 p[17] = (iport->iport_link_info.portid >> 16) & 0xFF;
2628 p[18] = (iport->iport_link_info.portid >> 8) & 0xFF;
2629 p[19] = (iport->iport_link_info.portid >> 0) & 0xFF;
2630
2631 /*
2632 * FC-4 Protocol Types
2633 */
2634 *(p + 22) = 0x1; /* 0x100 */
2635 break;
2636
2637 case NS_RSPN_ID:
2638 /*
2639 * If we get here, port->port_sym_port_name is always not NULL.
2640 */
2641 ASSERT(port->port_sym_port_name);
2642 namelen = strlen(port->port_sym_port_name);
2643 ct->ct_resp_alloc_size = ct->ct_resp_size = 16;
2644 ct->ct_resp_payload = (uint8_t *)kmem_zalloc(ct->ct_resp_size,
2645 KM_SLEEP);
2646 ct->ct_req_size = ct->ct_req_alloc_size =
2647 (21 + namelen + 3) & ~3;
2648 p = ct->ct_req_payload = (uint8_t *)kmem_zalloc(ct->ct_req_size,
2649 KM_SLEEP);
2650
2651 /*
2652 * Port Identifier
2653 */
2654 p[17] = (iport->iport_link_info.portid >> 16) & 0xFF;
2655 p[18] = (iport->iport_link_info.portid >> 8) & 0xFF;
2656 p[19] = (iport->iport_link_info.portid >> 0) & 0xFF;
2657
2658 /*
2659 * String length
2660 */
2661 p[20] = namelen;
2662
2663 /*
2664 * Symbolic port name
2665 */
2666 bcopy(port->port_sym_port_name, p + 21, ct->ct_req_size - 21);
2667 break;
2668
2669 case NS_RSNN_NN:
2670 namelen = port->port_sym_node_name == NULL ?
2671 strlen(utsname.nodename) :
2672 strlen(port->port_sym_node_name);
2673 nname = port->port_sym_node_name == NULL ?
2674 utsname.nodename : port->port_sym_node_name;
2675
2676 ct->ct_resp_alloc_size = ct->ct_resp_size = 16;
2677 ct->ct_resp_payload = (uint8_t *)kmem_zalloc(ct->ct_resp_size,
2678 KM_SLEEP);
2679 ct->ct_req_size = ct->ct_req_alloc_size =
2680 (25 + namelen + 3) & ~3;
2681 p = ct->ct_req_payload = (uint8_t *)kmem_zalloc(ct->ct_req_size,
2682 KM_SLEEP);
2683
2684 /*
2685 * Node name
2686 */
2687 bcopy(port->port_nwwn, p + 16, 8);
2688
2689 /*
2690 * String length
2691 */
2692 p[24] = namelen;
2693
2694 /*
2695 * Symbolic node name
2696 */
2697 bcopy(nname, p + 25, ct->ct_req_size - 25);
2698 break;
2699
2700 case NS_GSPN_ID:
2701 ct->ct_resp_alloc_size = ct->ct_resp_size = 272;
2702 ct->ct_resp_payload = (uint8_t *)kmem_zalloc(ct->ct_resp_size,
2703 KM_SLEEP);
2704 ct->ct_req_size = ct->ct_req_alloc_size = 20;
2705 p = ct->ct_req_payload = (uint8_t *)kmem_zalloc(ct->ct_req_size,
2706 KM_SLEEP);
2707 /*
2708 * Port Identifier
2709 */
2710 p[17] = (query_rp->rp_id >> 16) & 0xFF;
2711 p[18] = (query_rp->rp_id >> 8) & 0xFF;
2712 p[19] = (query_rp->rp_id >> 0) & 0xFF;
2713 break;
2714
2715 case NS_GCS_ID:
2716 ct->ct_resp_alloc_size = ct->ct_resp_size = 20;
2717 ct->ct_resp_payload = (uint8_t *)kmem_zalloc(ct->ct_resp_size,
2718 KM_SLEEP);
2719 ct->ct_req_size = ct->ct_req_alloc_size = 20;
2720 p = ct->ct_req_payload = (uint8_t *)kmem_zalloc(ct->ct_req_size,
2721 KM_SLEEP);
2722 /*
2723 * Port Identifier
2724 */
2725 p[17] = (query_rp->rp_id >> 16) & 0xFF;
2726 p[18] = (query_rp->rp_id >> 8) & 0xFF;
2727 p[19] = (query_rp->rp_id >> 0) & 0xFF;
2728 break;
2729
2730 case NS_GFT_ID:
2731 ct->ct_resp_alloc_size = ct->ct_resp_size = 48;
2732 ct->ct_resp_payload = (uint8_t *)kmem_zalloc(ct->ct_resp_size,
2733 KM_SLEEP);
2734 ct->ct_req_size = ct->ct_req_alloc_size = 20;
2735 p = ct->ct_req_payload = (uint8_t *)kmem_zalloc(ct->ct_req_size,
2736 KM_SLEEP);
2737 /*
2738 * Port Identifier
2739 */
2740 p[17] = (query_rp->rp_id >> 16) & 0xFF;
2741 p[18] = (query_rp->rp_id >> 8) & 0xFF;
2742 p[19] = (query_rp->rp_id >> 0) & 0xFF;
2743 break;
2744
2745 case NS_GID_PN:
2746 ct->ct_resp_alloc_size = ct->ct_resp_size = 20;
2747 ct->ct_resp_payload = (uint8_t *)kmem_zalloc(ct->ct_resp_size,
2748 KM_SLEEP);
2749
2750 ct->ct_req_size = ct->ct_req_alloc_size = 24;
2751 p = ct->ct_req_payload = (uint8_t *)kmem_zalloc(ct->ct_req_size,
2752 KM_SLEEP);
2753
2754 bcopy(query_rp->rp_pwwn, p + 16, 8);
2755 break;
2756
2757 default:
2758 /* CONSTCOND */
2759 ASSERT(0);
2760 }
2761
2762 FCT_FILL_CTIU_PREAMBLE(p, ctop);
2763 return (cmd);
2764 }
2765
2766 /*
2767 * Cmd can only be solicited CT/ELS. They will be dispatched to the discovery
2768 * queue eventually too.
2769 * We queue solicited cmds here to track solicited cmds and to take full use
2770 * of single thread mechanism.
2771 * But in current implmentation, we don't use this mechanism on SOL_CT, PLOGI.
2772 * To avoid to interrupt current flow, ICMD_IN_SOLCMD_QUEUE is used here.
2773 */
2774 void
fct_post_to_solcmd_queue(fct_local_port_t * port,fct_cmd_t * cmd)2775 fct_post_to_solcmd_queue(fct_local_port_t *port, fct_cmd_t *cmd)
2776 {
2777 fct_i_local_port_t *iport = (fct_i_local_port_t *)
2778 port->port_fct_private;
2779 fct_i_cmd_t *icmd = (fct_i_cmd_t *)cmd->cmd_fct_private;
2780
2781 mutex_enter(&iport->iport_worker_lock);
2782 icmd->icmd_solcmd_next = iport->iport_solcmd_queue;
2783 iport->iport_solcmd_queue = icmd;
2784 atomic_or_32(&icmd->icmd_flags, ICMD_IN_SOLCMD_QUEUE | ICMD_SOLCMD_NEW);
2785 if (IS_WORKER_SLEEPING(iport)) {
2786 cv_signal(&iport->iport_worker_cv);
2787 }
2788 mutex_exit(&iport->iport_worker_lock);
2789 }
2790
2791 /* ARGSUSED */
2792 void
fct_event_handler(stmf_local_port_t * lport,int eventid,void * arg,uint32_t flags)2793 fct_event_handler(stmf_local_port_t *lport, int eventid, void *arg,
2794 uint32_t flags)
2795 {
2796 fct_local_port_t *port = (fct_local_port_t *)
2797 lport->lport_port_private;
2798 fct_i_local_port_t *iport = (fct_i_local_port_t *)
2799 port->port_fct_private;
2800 stmf_scsi_session_t *ss;
2801 fct_i_remote_port_t *irp;
2802
2803 switch (eventid) {
2804 case LPORT_EVENT_INITIAL_LUN_MAPPED:
2805 ss = (stmf_scsi_session_t *)arg;
2806 irp = (fct_i_remote_port_t *)ss->ss_port_private;
2807 stmf_trace(iport->iport_alias,
2808 "Initial LUN mapped to session ss-%p, irp-%p", ss, irp);
2809 break;
2810
2811 default:
2812 stmf_trace(iport->iport_alias,
2813 "Unknown event received, %d", eventid);
2814 }
2815 }
2816
2817 void
fct_send_cmd_done(fct_cmd_t * cmd,fct_status_t s,uint32_t ioflags)2818 fct_send_cmd_done(fct_cmd_t *cmd, fct_status_t s, uint32_t ioflags)
2819 {
2820 /* XXX For now just call send_resp_done() */
2821 fct_send_response_done(cmd, s, ioflags);
2822 }
2823
2824 void
fct_cmd_fca_aborted(fct_cmd_t * cmd,fct_status_t s,uint32_t ioflags)2825 fct_cmd_fca_aborted(fct_cmd_t *cmd, fct_status_t s, uint32_t ioflags)
2826 {
2827 fct_i_cmd_t *icmd = (fct_i_cmd_t *)cmd->cmd_fct_private;
2828 char info[FCT_INFO_LEN];
2829 unsigned long long st;
2830
2831 st = s; /* To make gcc happy */
2832 ASSERT(icmd->icmd_flags & ICMD_BEING_ABORTED);
2833 if ((((s != FCT_ABORT_SUCCESS) && (s != FCT_NOT_FOUND))) ||
2834 ((ioflags & FCT_IOF_FCA_DONE) == 0)) {
2835 (void) snprintf(info, sizeof (info),
2836 "fct_cmd_fca_aborted: cmd-%p, "
2837 "s-%llx, iofalgs-%x", (void *)cmd, st, ioflags);
2838 (void) fct_port_shutdown(cmd->cmd_port,
2839 STMF_RFLAG_FATAL_ERROR | STMF_RFLAG_RESET, info);
2840 return;
2841 }
2842
2843 atomic_and_32(&icmd->icmd_flags, ~ICMD_KNOWN_TO_FCA);
2844 /* For non FCP Rest of the work is done by the terminator */
2845 /* For FCP stuff just call stmf */
2846 if (cmd->cmd_type == FCT_CMD_FCP_XCHG) {
2847 stmf_task_lport_aborted_unlocked(
2848 (scsi_task_t *)cmd->cmd_specific, s, STMF_IOF_LPORT_DONE);
2849 }
2850 }
2851
2852 /*
2853 * FCA drivers will use it, when they want to abort some FC transactions
2854 * due to lack of resource.
2855 */
2856 uint16_t
fct_get_rp_handle(fct_local_port_t * port,uint32_t rportid)2857 fct_get_rp_handle(fct_local_port_t *port, uint32_t rportid)
2858 {
2859 fct_i_remote_port_t *irp;
2860
2861 irp = fct_portid_to_portptr(
2862 (fct_i_local_port_t *)(port->port_fct_private), rportid);
2863 if (irp == NULL) {
2864 return (0xFFFF);
2865 } else {
2866 return (irp->irp_rp->rp_handle);
2867 }
2868 }
2869
2870 fct_cmd_t *
fct_handle_to_cmd(fct_local_port_t * port,uint32_t fct_handle)2871 fct_handle_to_cmd(fct_local_port_t *port, uint32_t fct_handle)
2872 {
2873 fct_cmd_slot_t *slot;
2874 uint16_t ndx;
2875
2876 if (!CMD_HANDLE_VALID(fct_handle))
2877 return (NULL);
2878 if ((ndx = CMD_HANDLE_SLOT_INDEX(fct_handle)) >= port->port_max_xchges)
2879 return (NULL);
2880
2881 slot = &((fct_i_local_port_t *)port->port_fct_private)->iport_cmd_slots[
2882 ndx];
2883
2884 if ((slot->slot_uniq_cntr | 0x80) != (fct_handle >> 24))
2885 return (NULL);
2886 return (slot->slot_cmd->icmd_cmd);
2887 }
2888
2889 void
fct_queue_scsi_task_for_termination(fct_cmd_t * cmd,fct_status_t s)2890 fct_queue_scsi_task_for_termination(fct_cmd_t *cmd, fct_status_t s)
2891 {
2892 fct_i_cmd_t *icmd = (fct_i_cmd_t *)cmd->cmd_fct_private;
2893
2894 uint32_t old, new;
2895
2896 do {
2897 old = icmd->icmd_flags;
2898 if ((old & (ICMD_BEING_ABORTED | ICMD_KNOWN_TO_FCA)) !=
2899 ICMD_KNOWN_TO_FCA)
2900 return;
2901 new = old | ICMD_BEING_ABORTED;
2902 } while (atomic_cas_32(&icmd->icmd_flags, old, new) != old);
2903 stmf_abort(STMF_QUEUE_TASK_ABORT, (scsi_task_t *)cmd->cmd_specific,
2904 s, NULL);
2905 }
2906
2907 void
fct_fill_abts_acc(fct_cmd_t * cmd)2908 fct_fill_abts_acc(fct_cmd_t *cmd)
2909 {
2910 fct_rcvd_abts_t *abts = (fct_rcvd_abts_t *)cmd->cmd_specific;
2911 uint8_t *p;
2912
2913 abts->abts_resp_rctl = BLS_OP_BA_ACC;
2914 p = abts->abts_resp_payload;
2915 bzero(p, 12);
2916 *((uint16_t *)(p+4)) = BE_16(cmd->cmd_oxid);
2917 *((uint16_t *)(p+6)) = BE_16(cmd->cmd_rxid);
2918 p[10] = p[11] = 0xff;
2919 }
2920
2921 void
fct_handle_rcvd_abts(fct_cmd_t * cmd)2922 fct_handle_rcvd_abts(fct_cmd_t *cmd)
2923 {
2924 char info[FCT_INFO_LEN];
2925 fct_local_port_t *port = cmd->cmd_port;
2926 fct_i_local_port_t *iport =
2927 (fct_i_local_port_t *)port->port_fct_private;
2928 fct_i_cmd_t *icmd = (fct_i_cmd_t *)cmd->cmd_fct_private;
2929 fct_i_remote_port_t *irp;
2930 fct_cmd_t *c = NULL;
2931 fct_i_cmd_t *ic = NULL;
2932 int found = 0;
2933 int i;
2934
2935 icmd->icmd_start_time = ddi_get_lbolt();
2936 icmd->icmd_flags |= ICMD_KNOWN_TO_FCA;
2937
2938 rw_enter(&iport->iport_lock, RW_WRITER);
2939 /* Make sure local port is sane */
2940 if ((iport->iport_link_state & S_LINK_ONLINE) == 0) {
2941 rw_exit(&iport->iport_lock);
2942 stmf_trace(iport->iport_alias, "ABTS not posted becasue"
2943 "port state was %x", iport->iport_link_state);
2944 fct_queue_cmd_for_termination(cmd, FCT_LOCAL_PORT_OFFLINE);
2945 return;
2946 }
2947
2948 if (cmd->cmd_rp_handle == FCT_HANDLE_NONE)
2949 irp = fct_portid_to_portptr(iport, cmd->cmd_rportid);
2950 else if (cmd->cmd_rp_handle < port->port_max_logins)
2951 irp = iport->iport_rp_slots[cmd->cmd_rp_handle];
2952 else
2953 irp = NULL;
2954 if (irp == NULL) {
2955 /* XXX Throw a logout to the initiator */
2956 rw_exit(&iport->iport_lock);
2957 stmf_trace(iport->iport_alias, "ABTS received from"
2958 " %x without a session", cmd->cmd_rportid);
2959 fct_queue_cmd_for_termination(cmd, FCT_NOT_LOGGED_IN);
2960 return;
2961 }
2962
2963 DTRACE_FC_3(abts__receive,
2964 fct_cmd_t, cmd,
2965 fct_local_port_t, port,
2966 fct_i_remote_port_t, irp);
2967
2968 cmd->cmd_rp = irp->irp_rp;
2969
2970 /*
2971 * No need to allocate an xchg resource. ABTSes use the same
2972 * xchg resource as the cmd they are aborting.
2973 */
2974 rw_enter(&irp->irp_lock, RW_WRITER);
2975 mutex_enter(&iport->iport_worker_lock);
2976 /* Lets find the command first */
2977 for (i = 0; i < port->port_max_xchges; i++) {
2978 if ((ic = iport->iport_cmd_slots[i].slot_cmd) == NULL)
2979 continue;
2980 if ((ic->icmd_flags & ICMD_KNOWN_TO_FCA) == 0)
2981 continue;
2982 c = ic->icmd_cmd;
2983 if (!CMD_HANDLE_VALID(c->cmd_handle))
2984 continue;
2985 if ((c->cmd_rportid != cmd->cmd_rportid) ||
2986 (c->cmd_oxid != cmd->cmd_oxid))
2987 continue;
2988 /* Found the command */
2989 found = 1;
2990 break;
2991 }
2992 if (!found) {
2993 mutex_exit(&iport->iport_worker_lock);
2994 rw_exit(&irp->irp_lock);
2995 rw_exit(&iport->iport_lock);
2996 /* Dont even bother queueing it. Just respond */
2997 fct_fill_abts_acc(cmd);
2998 if (port->port_send_cmd_response(cmd,
2999 FCT_IOF_FORCE_FCA_DONE) != FCT_SUCCESS) {
3000 /*
3001 * XXX Throw HBA fatal error event
3002 * Later shutdown svc will terminate the ABTS in the end
3003 */
3004 (void) snprintf(info, sizeof (info),
3005 "fct_handle_rcvd_abts: iport-%p, "
3006 "ABTS_ACC port_send_cmd_response failed",
3007 (void *)iport);
3008 (void) fct_port_shutdown(iport->iport_port,
3009 STMF_RFLAG_FATAL_ERROR | STMF_RFLAG_RESET, info);
3010 } else {
3011 fct_cmd_free(cmd);
3012 }
3013 return;
3014 }
3015
3016 /* Check if this an abts retry */
3017 if (c->cmd_link && (ic->icmd_flags & ICMD_ABTS_RECEIVED)) {
3018 /* Kill this abts. */
3019 fct_q_for_termination_lock_held(iport, icmd, FCT_ABORTED);
3020 if (IS_WORKER_SLEEPING(iport))
3021 cv_signal(&iport->iport_worker_cv);
3022 mutex_exit(&iport->iport_worker_lock);
3023 rw_exit(&irp->irp_lock);
3024 rw_exit(&iport->iport_lock);
3025 return;
3026 }
3027 c->cmd_link = cmd;
3028 atomic_or_32(&ic->icmd_flags, ICMD_ABTS_RECEIVED);
3029 cmd->cmd_link = c;
3030 mutex_exit(&iport->iport_worker_lock);
3031 rw_exit(&irp->irp_lock);
3032 fct_queue_cmd_for_termination(c, FCT_ABTS_RECEIVED);
3033 rw_exit(&iport->iport_lock);
3034 }
3035
3036 void
fct_queue_cmd_for_termination(fct_cmd_t * cmd,fct_status_t s)3037 fct_queue_cmd_for_termination(fct_cmd_t *cmd, fct_status_t s)
3038 {
3039 fct_local_port_t *port = cmd->cmd_port;
3040 fct_i_local_port_t *iport = (fct_i_local_port_t *)
3041 port->port_fct_private;
3042 fct_i_cmd_t *icmd = (fct_i_cmd_t *)cmd->cmd_fct_private;
3043
3044 if (cmd->cmd_type == FCT_CMD_FCP_XCHG) {
3045 fct_queue_scsi_task_for_termination(cmd, s);
3046 return;
3047 }
3048 mutex_enter(&iport->iport_worker_lock);
3049 fct_q_for_termination_lock_held(iport, icmd, s);
3050 if (IS_WORKER_SLEEPING(iport))
3051 cv_signal(&iport->iport_worker_cv);
3052 mutex_exit(&iport->iport_worker_lock);
3053 }
3054
3055 /*
3056 * This function will not be called for SCSI CMDS
3057 */
3058 void
fct_q_for_termination_lock_held(fct_i_local_port_t * iport,fct_i_cmd_t * icmd,fct_status_t s)3059 fct_q_for_termination_lock_held(fct_i_local_port_t *iport, fct_i_cmd_t *icmd,
3060 fct_status_t s)
3061 {
3062 uint32_t old, new;
3063 fct_i_cmd_t **ppicmd;
3064
3065 do {
3066 old = icmd->icmd_flags;
3067 if (old & ICMD_BEING_ABORTED)
3068 return;
3069 new = old | ICMD_BEING_ABORTED;
3070 } while (atomic_cas_32(&icmd->icmd_flags, old, new) != old);
3071
3072 icmd->icmd_start_time = ddi_get_lbolt();
3073 icmd->icmd_cmd->cmd_comp_status = s;
3074
3075 icmd->icmd_next = NULL;
3076 for (ppicmd = &(iport->iport_abort_queue); *ppicmd != NULL;
3077 ppicmd = &((*ppicmd)->icmd_next))
3078 ;
3079
3080 *ppicmd = icmd;
3081 }
3082
3083 /*
3084 * For those cmds, for which we called fca_abort but it has not yet completed,
3085 * reset the FCA_ABORT_CALLED flag, so that abort can be called again.
3086 * This is done after a FCA offline. The reason is that after offline, the
3087 * firmware is not running so abort will never complete. But if we call it
3088 * again, the FCA will detect that it is not offline and it will
3089 * not call the firmware at all. Most likely it will abort in a synchronous
3090 * manner i.e. return FCT_ABORT_SUCCESS or FCT_NOT_FOUND.
3091 */
3092 void
fct_reset_flag_abort_called(fct_i_local_port_t * iport)3093 fct_reset_flag_abort_called(fct_i_local_port_t *iport)
3094 {
3095 fct_i_cmd_t *icmd;
3096 uint32_t old, new;
3097 int i, do_clear;
3098
3099 ASSERT(mutex_owned(&iport->iport_worker_lock));
3100 mutex_exit(&iport->iport_worker_lock);
3101 rw_enter(&iport->iport_lock, RW_WRITER);
3102 mutex_enter(&iport->iport_worker_lock);
3103
3104 for (i = 0; i < iport->iport_port->port_max_xchges; i++) {
3105 if (iport->iport_cmd_slots[i].slot_cmd == NULL)
3106 continue;
3107
3108 icmd = iport->iport_cmd_slots[i].slot_cmd;
3109
3110 do {
3111 old = new = icmd->icmd_flags;
3112 if ((old & (ICMD_KNOWN_TO_FCA |
3113 ICMD_FCA_ABORT_CALLED)) == (ICMD_KNOWN_TO_FCA |
3114 ICMD_FCA_ABORT_CALLED)) {
3115 new &= ~ICMD_FCA_ABORT_CALLED;
3116 do_clear = 1;
3117 } else {
3118 do_clear = 0;
3119 break;
3120 }
3121 } while (atomic_cas_32(&icmd->icmd_flags, old, new) != old);
3122 if (do_clear &&
3123 (icmd->icmd_cmd->cmd_type == FCT_CMD_FCP_XCHG)) {
3124 stmf_abort(STMF_REQUEUE_TASK_ABORT_LPORT,
3125 icmd->icmd_cmd->cmd_specific, 0, NULL);
3126 }
3127 }
3128
3129 rw_exit(&iport->iport_lock);
3130 }
3131
3132 /*
3133 * Modify the irp_deregister_timer such that the ports start deregistering
3134 * quickly.
3135 */
3136 void
fct_irp_deregister_speedup(fct_i_local_port_t * iport)3137 fct_irp_deregister_speedup(fct_i_local_port_t *iport)
3138 {
3139 fct_i_remote_port_t *irp;
3140 int i;
3141
3142 if (!iport->iport_nrps)
3143 return;
3144
3145 for (i = 0; i < rportid_table_size; i++) {
3146 irp = iport->iport_rp_tb[i];
3147 while (irp) {
3148 irp->irp_deregister_timer = ddi_get_lbolt() - 1;
3149 irp = irp->irp_next;
3150 }
3151 }
3152 }
3153
3154 disc_action_t
fct_handle_port_offline(fct_i_local_port_t * iport)3155 fct_handle_port_offline(fct_i_local_port_t *iport)
3156 {
3157 if (iport->iport_offline_prstate == FCT_OPR_START) {
3158 fct_reset_flag_abort_called(iport);
3159 iport->iport_offline_prstate = FCT_OPR_CMD_CLEANUP_WAIT;
3160 /* fct_ctl has already submitted a link offline event */
3161 return (DISC_ACTION_DELAY_RESCAN);
3162 }
3163 if (iport->iport_offline_prstate == FCT_OPR_CMD_CLEANUP_WAIT) {
3164 if (iport->iport_link_state != PORT_STATE_LINK_DOWN)
3165 return (DISC_ACTION_DELAY_RESCAN);
3166 /*
3167 * All I/Os have been killed at this time. Lets speedup
3168 * the port deregister process.
3169 */
3170 mutex_exit(&iport->iport_worker_lock);
3171 rw_enter(&iport->iport_lock, RW_WRITER);
3172 fct_irp_deregister_speedup(iport);
3173 rw_exit(&iport->iport_lock);
3174 mutex_enter(&iport->iport_worker_lock);
3175 iport->iport_offline_prstate = FCT_OPR_INT_CLEANUP_WAIT;
3176 return (DISC_ACTION_RESCAN);
3177 }
3178 if (iport->iport_offline_prstate == FCT_OPR_INT_CLEANUP_WAIT) {
3179 stmf_change_status_t st;
3180
3181 if (iport->iport_solcmd_queue) {
3182 return (DISC_ACTION_DELAY_RESCAN);
3183 }
3184
3185 if (iport->iport_nrps) {
3186 /*
3187 * A port logout may have gone when implicit logo all
3188 * was retried. So do the port speedup again here.
3189 */
3190 mutex_exit(&iport->iport_worker_lock);
3191 rw_enter(&iport->iport_lock, RW_WRITER);
3192 fct_irp_deregister_speedup(iport);
3193 rw_exit(&iport->iport_lock);
3194 mutex_enter(&iport->iport_worker_lock);
3195 return (DISC_ACTION_DELAY_RESCAN);
3196 }
3197
3198 if (iport->iport_event_head != NULL) {
3199 return (DISC_ACTION_DELAY_RESCAN);
3200 }
3201
3202 st.st_completion_status = STMF_SUCCESS;
3203 st.st_additional_info = NULL;
3204 iport->iport_offline_prstate = FCT_OPR_DONE;
3205 iport->iport_state = FCT_STATE_OFFLINE;
3206 mutex_exit(&iport->iport_worker_lock);
3207 (void) stmf_ctl(STMF_CMD_LPORT_OFFLINE_COMPLETE,
3208 iport->iport_port->port_lport, &st);
3209 mutex_enter(&iport->iport_worker_lock);
3210 return (DISC_ACTION_DELAY_RESCAN);
3211 }
3212
3213 /* NOTREACHED */
3214 return (0);
3215 }
3216
3217 /*
3218 * See stmf.h for information on rflags. Additional info is just a text
3219 * description of the reason for this call. Additional_info can be NULL.
3220 * Also the caller can declare additional info on the stack. stmf_ctl
3221 * makes a copy of it before returning.
3222 */
3223 fct_status_t
fct_port_initialize(fct_local_port_t * port,uint32_t rflags,char * additional_info)3224 fct_port_initialize(fct_local_port_t *port, uint32_t rflags,
3225 char *additional_info)
3226 {
3227 stmf_state_change_info_t st;
3228
3229 st.st_rflags = rflags;
3230 st.st_additional_info = additional_info;
3231 stmf_trace(NULL, "fct_port_initialize: port-%p, %s", port,
3232 additional_info? additional_info : "no more information");
3233 return (stmf_ctl(STMF_CMD_LPORT_ONLINE, port->port_lport, &st));
3234 }
3235
3236 fct_status_t
fct_port_shutdown(fct_local_port_t * port,uint32_t rflags,char * additional_info)3237 fct_port_shutdown(fct_local_port_t *port, uint32_t rflags,
3238 char *additional_info)
3239 {
3240 stmf_state_change_info_t st;
3241
3242 st.st_rflags = rflags;
3243 st.st_additional_info = additional_info;
3244 stmf_trace(NULL, "fct_port_shutdown: port-%p, %s", port,
3245 additional_info? additional_info : "no more information");
3246 return (stmf_ctl(STMF_CMD_LPORT_OFFLINE, port->port_lport, &st));
3247 }
3248
3249 /*
3250 * Called by worker thread. The aim is to terminate the command
3251 * using whatever means it takes.
3252 * Called with worker lock held.
3253 */
3254 disc_action_t
fct_cmd_terminator(fct_i_local_port_t * iport)3255 fct_cmd_terminator(fct_i_local_port_t *iport)
3256 {
3257 char info[FCT_INFO_LEN];
3258 clock_t endtime;
3259 fct_i_cmd_t **ppicmd;
3260 fct_i_cmd_t *icmd;
3261 fct_cmd_t *cmd;
3262 fct_local_port_t *port = iport->iport_port;
3263 disc_action_t ret = DISC_ACTION_NO_WORK;
3264 fct_status_t abort_ret;
3265 int fca_done, fct_done, cmd_implicit = 0;
3266 int flags;
3267 unsigned long long st;
3268
3269 /* Lets Limit each run to 20ms max. */
3270 endtime = ddi_get_lbolt() + drv_usectohz(20000);
3271
3272 /* Start from where we left off last time */
3273 if (iport->iport_ppicmd_term) {
3274 ppicmd = iport->iport_ppicmd_term;
3275 iport->iport_ppicmd_term = NULL;
3276 } else {
3277 ppicmd = &iport->iport_abort_queue;
3278 }
3279
3280 /*
3281 * Once a command gets on discovery queue, this is the only thread
3282 * which can access it. So no need for the lock here.
3283 */
3284 mutex_exit(&iport->iport_worker_lock);
3285
3286 while ((icmd = *ppicmd) != NULL) {
3287 cmd = icmd->icmd_cmd;
3288
3289 /* Always remember that cmd->cmd_rp can be NULL */
3290 if ((icmd->icmd_flags & (ICMD_KNOWN_TO_FCA |
3291 ICMD_FCA_ABORT_CALLED)) == ICMD_KNOWN_TO_FCA) {
3292 atomic_or_32(&icmd->icmd_flags, ICMD_FCA_ABORT_CALLED);
3293 if (CMD_HANDLE_VALID(cmd->cmd_handle))
3294 flags = 0;
3295 else
3296 flags = FCT_IOF_FORCE_FCA_DONE;
3297 abort_ret = port->port_abort_cmd(port, cmd, flags);
3298 if ((abort_ret != FCT_SUCCESS) &&
3299 (abort_ret != FCT_ABORT_SUCCESS) &&
3300 (abort_ret != FCT_NOT_FOUND)) {
3301 if (flags & FCT_IOF_FORCE_FCA_DONE) {
3302 /*
3303 * XXX trigger port fatal,
3304 * Abort the termination, and shutdown
3305 * svc will trigger fct_cmd_termination
3306 * again.
3307 */
3308 (void) snprintf(info, sizeof (info),
3309 "fct_cmd_terminator:"
3310 " iport-%p, port_abort_cmd with "
3311 "FORCE_FCA_DONE failed",
3312 (void *)iport);
3313 (void) fct_port_shutdown(
3314 iport->iport_port,
3315 STMF_RFLAG_FATAL_ERROR |
3316 STMF_RFLAG_RESET, info);
3317
3318 mutex_enter(&iport->iport_worker_lock);
3319 iport->iport_ppicmd_term = ppicmd;
3320 return (DISC_ACTION_DELAY_RESCAN);
3321 }
3322 atomic_and_32(&icmd->icmd_flags,
3323 ~ICMD_FCA_ABORT_CALLED);
3324 } else if ((flags & FCT_IOF_FORCE_FCA_DONE) ||
3325 (abort_ret == FCT_ABORT_SUCCESS) ||
3326 (abort_ret == FCT_NOT_FOUND)) {
3327 atomic_and_32(&icmd->icmd_flags,
3328 ~ICMD_KNOWN_TO_FCA);
3329 }
3330 ret |= DISC_ACTION_DELAY_RESCAN;
3331 } else if (icmd->icmd_flags & ICMD_IMPLICIT) {
3332 if (cmd->cmd_type == FCT_CMD_SOL_ELS)
3333 cmd->cmd_comp_status = FCT_ABORTED;
3334 atomic_or_32(&icmd->icmd_flags, ICMD_FCA_ABORT_CALLED);
3335 cmd_implicit = 1;
3336 }
3337 if ((icmd->icmd_flags & ICMD_KNOWN_TO_FCA) == 0)
3338 fca_done = 1;
3339 else
3340 fca_done = 0;
3341 if ((icmd->icmd_flags & ICMD_IN_IRP_QUEUE) == 0)
3342 fct_done = 1;
3343 else
3344 fct_done = 0;
3345 if ((fca_done || cmd_implicit) && fct_done) {
3346 mutex_enter(&iport->iport_worker_lock);
3347 ASSERT(*ppicmd == icmd);
3348 *ppicmd = (*ppicmd)->icmd_next;
3349 mutex_exit(&iport->iport_worker_lock);
3350 if ((cmd->cmd_type == FCT_CMD_RCVD_ELS) ||
3351 (cmd->cmd_type == FCT_CMD_RCVD_ABTS)) {
3352 /* Free the cmd */
3353 fct_cmd_free(cmd);
3354 } else if (cmd->cmd_type == FCT_CMD_SOL_ELS) {
3355 fct_handle_sol_els_completion(iport, icmd);
3356 if (icmd->icmd_flags & ICMD_IMPLICIT) {
3357 if (IS_LOGO_ELS(icmd)) {
3358 /* IMPLICIT LOGO is special */
3359 fct_cmd_free(cmd);
3360 }
3361 }
3362 } else if (cmd->cmd_type == FCT_CMD_SOL_CT) {
3363 fct_sol_ct_t *ct = ICMD_TO_CT(icmd);
3364
3365 /* Tell the caller that we are done */
3366 atomic_or_32(&icmd->icmd_flags,
3367 ICMD_CMD_COMPLETE);
3368 if (fct_netbuf_to_value(
3369 ct->ct_req_payload + 8, 2) == NS_GID_PN) {
3370 fct_i_remote_port_t *irp;
3371
3372 rw_enter(&iport->iport_lock, RW_READER);
3373 irp = fct_lookup_irp_by_portwwn(iport,
3374 ct->ct_req_payload + 16);
3375
3376 if (irp) {
3377 atomic_and_32(&irp->irp_flags,
3378 ~IRP_RSCN_QUEUED);
3379 }
3380 rw_exit(&iport->iport_lock);
3381 }
3382 } else {
3383 ASSERT(0);
3384 }
3385 } else {
3386 clock_t timeout_ticks;
3387 if (port->port_fca_abort_timeout)
3388 timeout_ticks = drv_usectohz(
3389 port->port_fca_abort_timeout*1000);
3390 else
3391 /* 10 seconds by default */
3392 timeout_ticks = drv_usectohz(10 * 1000000);
3393 if ((ddi_get_lbolt() >
3394 (icmd->icmd_start_time+timeout_ticks)) &&
3395 iport->iport_state == FCT_STATE_ONLINE) {
3396 /* timeout, reset the port */
3397 char cmd_type[10];
3398 if (cmd->cmd_type == FCT_CMD_RCVD_ELS ||
3399 cmd->cmd_type == FCT_CMD_SOL_ELS) {
3400 fct_els_t *els = cmd->cmd_specific;
3401 (void) snprintf(cmd_type,
3402 sizeof (cmd_type), "%x.%x",
3403 cmd->cmd_type,
3404 els->els_req_payload[0]);
3405 } else if (cmd->cmd_type == FCT_CMD_SOL_CT) {
3406 fct_sol_ct_t *ct = cmd->cmd_specific;
3407 (void) snprintf(cmd_type,
3408 sizeof (cmd_type), "%x.%02x%02x",
3409 cmd->cmd_type,
3410 ct->ct_req_payload[8],
3411 ct->ct_req_payload[9]);
3412 } else {
3413 cmd_type[0] = 0;
3414 }
3415 st = cmd->cmd_comp_status; /* gcc fix */
3416 (void) snprintf(info, sizeof (info),
3417 "fct_cmd_terminator:"
3418 " iport-%p, cmd_type(0x%s),"
3419 " reason(%llx)", (void *)iport, cmd_type,
3420 st);
3421 (void) fct_port_shutdown(port,
3422 STMF_RFLAG_FATAL_ERROR | STMF_RFLAG_RESET,
3423 info);
3424 }
3425 ppicmd = &((*ppicmd)->icmd_next);
3426 }
3427
3428 if (ddi_get_lbolt() > endtime) {
3429 mutex_enter(&iport->iport_worker_lock);
3430 iport->iport_ppicmd_term = ppicmd;
3431 return (DISC_ACTION_DELAY_RESCAN);
3432 }
3433 }
3434 mutex_enter(&iport->iport_worker_lock);
3435 if (iport->iport_abort_queue)
3436 return (DISC_ACTION_DELAY_RESCAN);
3437 if (ret == DISC_ACTION_NO_WORK)
3438 return (DISC_ACTION_RESCAN);
3439 return (ret);
3440 }
3441
3442 /*
3443 * Send a syslog event for adapter port level events.
3444 */
3445 void
fct_log_local_port_event(fct_local_port_t * port,char * subclass)3446 fct_log_local_port_event(fct_local_port_t *port, char *subclass)
3447 {
3448 nvlist_t *attr_list;
3449 int port_instance;
3450 int rc, sleep = DDI_SLEEP;
3451
3452 if (!fct_dip)
3453 return;
3454 port_instance = ddi_get_instance(fct_dip);
3455
3456 if (nvlist_alloc(&attr_list, NV_UNIQUE_NAME_TYPE,
3457 KM_SLEEP) != DDI_SUCCESS) {
3458 goto alloc_failed;
3459 }
3460
3461 if (nvlist_add_uint32(attr_list, "instance", port_instance)
3462 != DDI_SUCCESS) {
3463 goto error;
3464 }
3465
3466 if (nvlist_add_byte_array(attr_list, "port-wwn",
3467 port->port_pwwn, 8) != DDI_SUCCESS) {
3468 goto error;
3469 }
3470
3471 if (fct_force_log == 0) {
3472 sleep = DDI_NOSLEEP;
3473 }
3474 rc = ddi_log_sysevent(fct_dip, DDI_VENDOR_SUNW, EC_SUNFC,
3475 subclass, attr_list, NULL, sleep);
3476 if (rc != DDI_SUCCESS) {
3477 cmn_err(CE_WARN, "%s:event dropped", __func__);
3478 goto error;
3479 }
3480
3481 nvlist_free(attr_list);
3482 return;
3483
3484 error:
3485 nvlist_free(attr_list);
3486 alloc_failed:
3487 stmf_trace(((fct_i_local_port_t *)port->port_fct_private)->iport_alias,
3488 "Unable to send %s event", subclass);
3489 }
3490
3491 void
fct_log_remote_port_event(fct_local_port_t * port,char * subclass,uint8_t * rp_pwwn,uint32_t rp_id)3492 fct_log_remote_port_event(fct_local_port_t *port, char *subclass,
3493 uint8_t *rp_pwwn, uint32_t rp_id)
3494 {
3495 nvlist_t *attr_list;
3496 int port_instance;
3497 int rc, sleep = DDI_SLEEP;
3498
3499 if (!fct_dip)
3500 return;
3501 port_instance = ddi_get_instance(fct_dip);
3502
3503 if (nvlist_alloc(&attr_list, NV_UNIQUE_NAME_TYPE,
3504 KM_SLEEP) != DDI_SUCCESS) {
3505 goto alloc_failed;
3506 }
3507
3508 if (nvlist_add_uint32(attr_list, "instance", port_instance)
3509 != DDI_SUCCESS) {
3510 goto error;
3511 }
3512
3513 if (nvlist_add_byte_array(attr_list, "port-wwn",
3514 port->port_pwwn, 8) != DDI_SUCCESS) {
3515 goto error;
3516 }
3517
3518 if (nvlist_add_byte_array(attr_list, "target-port-wwn",
3519 rp_pwwn, 8) != DDI_SUCCESS) {
3520 goto error;
3521 }
3522
3523 if (nvlist_add_uint32(attr_list, "target-port-id",
3524 rp_id) != DDI_SUCCESS) {
3525 goto error;
3526 }
3527
3528 if (fct_force_log == 0) {
3529 sleep = DDI_NOSLEEP;
3530 }
3531 rc = ddi_log_sysevent(fct_dip, DDI_VENDOR_SUNW, EC_SUNFC,
3532 subclass, attr_list, NULL, sleep);
3533 if (rc != DDI_SUCCESS) {
3534 cmn_err(CE_WARN, "%s: queue full event lost", __func__);
3535 goto error;
3536 }
3537
3538 nvlist_free(attr_list);
3539 return;
3540
3541 error:
3542 nvlist_free(attr_list);
3543 alloc_failed:
3544 stmf_trace(((fct_i_local_port_t *)port->port_fct_private)->iport_alias,
3545 "Unable to send %s event", subclass);
3546 }
3547
3548 uint64_t
fct_netbuf_to_value(uint8_t * buf,uint8_t nbytes)3549 fct_netbuf_to_value(uint8_t *buf, uint8_t nbytes)
3550 {
3551 uint64_t ret = 0;
3552 uint8_t idx = 0;
3553
3554 do {
3555 ret |= (buf[idx] << (8 * (nbytes -idx - 1)));
3556 } while (++idx < nbytes);
3557
3558 return (ret);
3559 }
3560
3561 void
fct_value_to_netbuf(uint64_t value,uint8_t * buf,uint8_t nbytes)3562 fct_value_to_netbuf(uint64_t value, uint8_t *buf, uint8_t nbytes)
3563 {
3564 uint8_t idx = 0;
3565
3566 for (idx = 0; idx < nbytes; idx++) {
3567 buf[idx] = 0xFF & (value >> (8 * (nbytes - idx - 1)));
3568 }
3569 }
3570
3571 /*
3572 * from_ptr: ptr to uchar_t array of size WWN_SIZE
3573 * to_ptr: char ptr to string of size WWN_SIZE*2+1
3574 */
3575 void
fct_wwn_to_str(char * to_ptr,const uint8_t * from_ptr)3576 fct_wwn_to_str(char *to_ptr, const uint8_t *from_ptr)
3577 {
3578 ASSERT(to_ptr != NULL && from_ptr != NULL);
3579
3580 (void) sprintf(to_ptr, "%02x%02x%02x%02x%02x%02x%02x%02x",
3581 from_ptr[0], from_ptr[1], from_ptr[2], from_ptr[3],
3582 from_ptr[4], from_ptr[5], from_ptr[6], from_ptr[7]);
3583 }
3584
3585 static int
fct_update_stats(kstat_t * ks,int rw)3586 fct_update_stats(kstat_t *ks, int rw)
3587 {
3588 fct_i_local_port_t *iport;
3589 fct_port_stat_t *port_kstat;
3590 fct_port_link_status_t stat;
3591 uint32_t buf_size = sizeof (stat);
3592 int ret;
3593
3594 if (rw == KSTAT_WRITE)
3595 return (EACCES);
3596
3597 iport = (fct_i_local_port_t *)ks->ks_private;
3598 port_kstat = (fct_port_stat_t *)ks->ks_data;
3599
3600 if (iport->iport_port->port_info == NULL) {
3601 return (EIO);
3602 }
3603 ret = iport->iport_port->port_info(FC_TGT_PORT_RLS,
3604 iport->iport_port, NULL, (uint8_t *)&stat, &buf_size);
3605 if (ret != STMF_SUCCESS) {
3606 return (EIO);
3607 }
3608
3609 port_kstat->link_failure_cnt.value.ui32 =
3610 stat.LinkFailureCount;
3611 port_kstat->loss_of_sync_cnt.value.ui32 =
3612 stat.LossOfSyncCount;
3613 port_kstat->loss_of_signals_cnt.value.ui32 =
3614 stat.LossOfSignalsCount;
3615 port_kstat->prim_seq_protocol_err_cnt.value.ui32 =
3616 stat.PrimitiveSeqProtocolErrorCount;
3617 port_kstat->invalid_tx_word_cnt.value.ui32 =
3618 stat.InvalidTransmissionWordCount;
3619 port_kstat->invalid_crc_cnt.value.ui32 =
3620 stat.InvalidCRCCount;
3621
3622 return (0);
3623 }
3624
3625 void
fct_init_kstats(fct_i_local_port_t * iport)3626 fct_init_kstats(fct_i_local_port_t *iport)
3627 {
3628 kstat_t *ks;
3629 fct_port_stat_t *port_kstat;
3630 char name[256];
3631
3632 if (iport->iport_alias)
3633 (void) sprintf(name, "iport_%s", iport->iport_alias);
3634 else
3635 (void) sprintf(name, "iport_%"PRIxPTR"", (uintptr_t)iport);
3636 ks = kstat_create(FCT_MODULE_NAME, 0, name, "rawdata",
3637 KSTAT_TYPE_NAMED, sizeof (fct_port_stat_t) / sizeof (kstat_named_t),
3638 0);
3639
3640 if (ks == NULL) {
3641 return;
3642 }
3643 port_kstat = (fct_port_stat_t *)ks->ks_data;
3644
3645 iport->iport_kstat_portstat = ks;
3646 kstat_named_init(&port_kstat->link_failure_cnt,
3647 "Link_failure_cnt", KSTAT_DATA_UINT32);
3648 kstat_named_init(&port_kstat->loss_of_sync_cnt,
3649 "Loss_of_sync_cnt", KSTAT_DATA_UINT32);
3650 kstat_named_init(&port_kstat->loss_of_signals_cnt,
3651 "Loss_of_signals_cnt", KSTAT_DATA_UINT32);
3652 kstat_named_init(&port_kstat->prim_seq_protocol_err_cnt,
3653 "Prim_seq_protocol_err_cnt", KSTAT_DATA_UINT32);
3654 kstat_named_init(&port_kstat->invalid_tx_word_cnt,
3655 "Invalid_tx_word_cnt", KSTAT_DATA_UINT32);
3656 kstat_named_init(&port_kstat->invalid_crc_cnt,
3657 "Invalid_crc_cnt", KSTAT_DATA_UINT32);
3658 ks->ks_update = fct_update_stats;
3659 ks->ks_private = (void *)iport;
3660 kstat_install(ks);
3661
3662 }
3663