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Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
[linux/fpc-iii.git] / drivers / message / fusion / mptfc.c
blobb5f03ad81568c84bbaca7eb7fad41a2a967a93f0
1 /*
2 * linux/drivers/message/fusion/mptfc.c
3 * For use with LSI PCI chip/adapter(s)
4 * running LSI Fusion MPT (Message Passing Technology) firmware.
5 *
6 * Copyright (c) 1999-2008 LSI Corporation
7 * (mailto:DL-MPTFusionLinux@lsi.com)
8 *
9 */
10 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
11 /*
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; version 2 of the License.
15
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
20
21 NO WARRANTY
22 THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
23 CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
24 LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
25 MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
26 solely responsible for determining the appropriateness of using and
27 distributing the Program and assumes all risks associated with its
28 exercise of rights under this Agreement, including but not limited to
29 the risks and costs of program errors, damage to or loss of data,
30 programs or equipment, and unavailability or interruption of operations.
31
32 DISCLAIMER OF LIABILITY
33 NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
34 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
35 DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
36 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
37 TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
38 USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
39 HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
40
41 You should have received a copy of the GNU General Public License
42 along with this program; if not, write to the Free Software
43 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
44 */
45 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
46 #include <linux/module.h>
47 #include <linux/kernel.h>
48 #include <linux/init.h>
49 #include <linux/errno.h>
50 #include <linux/kdev_t.h>
51 #include <linux/blkdev.h>
52 #include <linux/delay.h> /* for mdelay */
53 #include <linux/interrupt.h> /* needed for in_interrupt() proto */
54 #include <linux/reboot.h> /* notifier code */
55 #include <linux/workqueue.h>
56 #include <linux/sort.h>
57 #include <linux/slab.h>
58
59 #include <scsi/scsi.h>
60 #include <scsi/scsi_cmnd.h>
61 #include <scsi/scsi_device.h>
62 #include <scsi/scsi_host.h>
63 #include <scsi/scsi_tcq.h>
64 #include <scsi/scsi_transport_fc.h>
65
66 #include "mptbase.h"
67 #include "mptscsih.h"
68
69 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
70 #define my_NAME "Fusion MPT FC Host driver"
71 #define my_VERSION MPT_LINUX_VERSION_COMMON
72 #define MYNAM "mptfc"
73
74 MODULE_AUTHOR(MODULEAUTHOR);
75 MODULE_DESCRIPTION(my_NAME);
76 MODULE_LICENSE("GPL");
77 MODULE_VERSION(my_VERSION);
78
79 /* Command line args */
80 #define MPTFC_DEV_LOSS_TMO (60)
81 static int mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO; /* reasonable default */
82 module_param(mptfc_dev_loss_tmo, int, 0);
83 MODULE_PARM_DESC(mptfc_dev_loss_tmo, " Initial time the driver programs the "
84 " transport to wait for an rport to "
85 " return following a device loss event."
86 " Default=60.");
87
88 /* scsi-mid layer global parmeter is max_report_luns, which is 511 */
89 #define MPTFC_MAX_LUN (16895)
90 static int max_lun = MPTFC_MAX_LUN;
91 module_param(max_lun, int, 0);
92 MODULE_PARM_DESC(max_lun, " max lun, default=16895 ");
93
94 static u8 mptfcDoneCtx = MPT_MAX_PROTOCOL_DRIVERS;
95 static u8 mptfcTaskCtx = MPT_MAX_PROTOCOL_DRIVERS;
96 static u8 mptfcInternalCtx = MPT_MAX_PROTOCOL_DRIVERS;
97
98 static int mptfc_target_alloc(struct scsi_target *starget);
99 static int mptfc_slave_alloc(struct scsi_device *sdev);
100 static int mptfc_qcmd(struct scsi_cmnd *SCpnt,
101 void (*done)(struct scsi_cmnd *));
102 static void mptfc_target_destroy(struct scsi_target *starget);
103 static void mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout);
104 static void __devexit mptfc_remove(struct pci_dev *pdev);
105 static int mptfc_abort(struct scsi_cmnd *SCpnt);
106 static int mptfc_dev_reset(struct scsi_cmnd *SCpnt);
107 static int mptfc_bus_reset(struct scsi_cmnd *SCpnt);
108 static int mptfc_host_reset(struct scsi_cmnd *SCpnt);
109
110 static struct scsi_host_template mptfc_driver_template = {
111 .module = THIS_MODULE,
112 .proc_name = "mptfc",
113 .proc_info = mptscsih_proc_info,
114 .name = "MPT FC Host",
115 .info = mptscsih_info,
116 .queuecommand = mptfc_qcmd,
117 .target_alloc = mptfc_target_alloc,
118 .slave_alloc = mptfc_slave_alloc,
119 .slave_configure = mptscsih_slave_configure,
120 .target_destroy = mptfc_target_destroy,
121 .slave_destroy = mptscsih_slave_destroy,
122 .change_queue_depth = mptscsih_change_queue_depth,
123 .eh_abort_handler = mptfc_abort,
124 .eh_device_reset_handler = mptfc_dev_reset,
125 .eh_bus_reset_handler = mptfc_bus_reset,
126 .eh_host_reset_handler = mptfc_host_reset,
127 .bios_param = mptscsih_bios_param,
128 .can_queue = MPT_FC_CAN_QUEUE,
129 .this_id = -1,
130 .sg_tablesize = MPT_SCSI_SG_DEPTH,
131 .max_sectors = 8192,
132 .cmd_per_lun = 7,
133 .use_clustering = ENABLE_CLUSTERING,
134 .shost_attrs = mptscsih_host_attrs,
135 };
136
137 /****************************************************************************
138 * Supported hardware
139 */
140
141 static struct pci_device_id mptfc_pci_table[] = {
142 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC909,
143 PCI_ANY_ID, PCI_ANY_ID },
144 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC919,
145 PCI_ANY_ID, PCI_ANY_ID },
146 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC929,
147 PCI_ANY_ID, PCI_ANY_ID },
148 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC919X,
149 PCI_ANY_ID, PCI_ANY_ID },
150 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC929X,
151 PCI_ANY_ID, PCI_ANY_ID },
152 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC939X,
153 PCI_ANY_ID, PCI_ANY_ID },
154 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC949X,
155 PCI_ANY_ID, PCI_ANY_ID },
156 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC949E,
157 PCI_ANY_ID, PCI_ANY_ID },
158 { PCI_VENDOR_ID_BROCADE, MPI_MANUFACTPAGE_DEVICEID_FC949E,
159 PCI_ANY_ID, PCI_ANY_ID },
160 {0} /* Terminating entry */
161 };
162 MODULE_DEVICE_TABLE(pci, mptfc_pci_table);
163
164 static struct scsi_transport_template *mptfc_transport_template = NULL;
165
166 static struct fc_function_template mptfc_transport_functions = {
167 .dd_fcrport_size = 8,
168 .show_host_node_name = 1,
169 .show_host_port_name = 1,
170 .show_host_supported_classes = 1,
171 .show_host_port_id = 1,
172 .show_rport_supported_classes = 1,
173 .show_starget_node_name = 1,
174 .show_starget_port_name = 1,
175 .show_starget_port_id = 1,
176 .set_rport_dev_loss_tmo = mptfc_set_rport_loss_tmo,
177 .show_rport_dev_loss_tmo = 1,
178 .show_host_supported_speeds = 1,
179 .show_host_maxframe_size = 1,
180 .show_host_speed = 1,
181 .show_host_fabric_name = 1,
182 .show_host_port_type = 1,
183 .show_host_port_state = 1,
184 .show_host_symbolic_name = 1,
185 };
186
187 static int
188 mptfc_block_error_handler(struct scsi_cmnd *SCpnt,
189 int (*func)(struct scsi_cmnd *SCpnt),
190 const char *caller)
191 {
192 MPT_SCSI_HOST *hd;
193 struct scsi_device *sdev = SCpnt->device;
194 struct Scsi_Host *shost = sdev->host;
195 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
196 unsigned long flags;
197 int ready;
198 MPT_ADAPTER *ioc;
199 int loops = 40; /* seconds */
200
201 hd = shost_priv(SCpnt->device->host);
202 ioc = hd->ioc;
203 spin_lock_irqsave(shost->host_lock, flags);
204 while ((ready = fc_remote_port_chkready(rport) >> 16) == DID_IMM_RETRY
205 || (loops > 0 && ioc->active == 0)) {
206 spin_unlock_irqrestore(shost->host_lock, flags);
207 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
208 "mptfc_block_error_handler.%d: %d:%d, port status is "
209 "%x, active flag %d, deferring %s recovery.\n",
210 ioc->name, ioc->sh->host_no,
211 SCpnt->device->id, SCpnt->device->lun,
212 ready, ioc->active, caller));
213 msleep(1000);
214 spin_lock_irqsave(shost->host_lock, flags);
215 loops --;
216 }
217 spin_unlock_irqrestore(shost->host_lock, flags);
218
219 if (ready == DID_NO_CONNECT || !SCpnt->device->hostdata
220 || ioc->active == 0) {
221 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
222 "%s.%d: %d:%d, failing recovery, "
223 "port state %x, active %d, vdevice %p.\n", caller,
224 ioc->name, ioc->sh->host_no,
225 SCpnt->device->id, SCpnt->device->lun, ready,
226 ioc->active, SCpnt->device->hostdata));
227 return FAILED;
228 }
229 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
230 "%s.%d: %d:%d, executing recovery.\n", caller,
231 ioc->name, ioc->sh->host_no,
232 SCpnt->device->id, SCpnt->device->lun));
233 return (*func)(SCpnt);
234 }
235
236 static int
237 mptfc_abort(struct scsi_cmnd *SCpnt)
238 {
239 return
240 mptfc_block_error_handler(SCpnt, mptscsih_abort, __func__);
241 }
242
243 static int
244 mptfc_dev_reset(struct scsi_cmnd *SCpnt)
245 {
246 return
247 mptfc_block_error_handler(SCpnt, mptscsih_dev_reset, __func__);
248 }
249
250 static int
251 mptfc_bus_reset(struct scsi_cmnd *SCpnt)
252 {
253 return
254 mptfc_block_error_handler(SCpnt, mptscsih_bus_reset, __func__);
255 }
256
257 static int
258 mptfc_host_reset(struct scsi_cmnd *SCpnt)
259 {
260 return
261 mptfc_block_error_handler(SCpnt, mptscsih_host_reset, __func__);
262 }
263
264 static void
265 mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
266 {
267 if (timeout > 0)
268 rport->dev_loss_tmo = timeout;
269 else
270 rport->dev_loss_tmo = mptfc_dev_loss_tmo;
271 }
272
273 static int
274 mptfc_FcDevPage0_cmp_func(const void *a, const void *b)
275 {
276 FCDevicePage0_t **aa = (FCDevicePage0_t **)a;
277 FCDevicePage0_t **bb = (FCDevicePage0_t **)b;
278
279 if ((*aa)->CurrentBus == (*bb)->CurrentBus) {
280 if ((*aa)->CurrentTargetID == (*bb)->CurrentTargetID)
281 return 0;
282 if ((*aa)->CurrentTargetID < (*bb)->CurrentTargetID)
283 return -1;
284 return 1;
285 }
286 if ((*aa)->CurrentBus < (*bb)->CurrentBus)
287 return -1;
288 return 1;
289 }
290
291 static int
292 mptfc_GetFcDevPage0(MPT_ADAPTER *ioc, int ioc_port,
293 void(*func)(MPT_ADAPTER *ioc,int channel, FCDevicePage0_t *arg))
294 {
295 ConfigPageHeader_t hdr;
296 CONFIGPARMS cfg;
297 FCDevicePage0_t *ppage0_alloc, *fc;
298 dma_addr_t page0_dma;
299 int data_sz;
300 int ii;
301
302 FCDevicePage0_t *p0_array=NULL, *p_p0;
303 FCDevicePage0_t **pp0_array=NULL, **p_pp0;
304
305 int rc = -ENOMEM;
306 U32 port_id = 0xffffff;
307 int num_targ = 0;
308 int max_bus = ioc->facts.MaxBuses;
309 int max_targ;
310
311 max_targ = (ioc->facts.MaxDevices == 0) ? 256 : ioc->facts.MaxDevices;
312
313 data_sz = sizeof(FCDevicePage0_t) * max_bus * max_targ;
314 p_p0 = p0_array = kzalloc(data_sz, GFP_KERNEL);
315 if (!p0_array)
316 goto out;
317
318 data_sz = sizeof(FCDevicePage0_t *) * max_bus * max_targ;
319 p_pp0 = pp0_array = kzalloc(data_sz, GFP_KERNEL);
320 if (!pp0_array)
321 goto out;
322
323 do {
324 /* Get FC Device Page 0 header */
325 hdr.PageVersion = 0;
326 hdr.PageLength = 0;
327 hdr.PageNumber = 0;
328 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_DEVICE;
329 cfg.cfghdr.hdr = &hdr;
330 cfg.physAddr = -1;
331 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
332 cfg.dir = 0;
333 cfg.pageAddr = port_id;
334 cfg.timeout = 0;
335
336 if ((rc = mpt_config(ioc, &cfg)) != 0)
337 break;
338
339 if (hdr.PageLength <= 0)
340 break;
341
342 data_sz = hdr.PageLength * 4;
343 ppage0_alloc = pci_alloc_consistent(ioc->pcidev, data_sz,
344 &page0_dma);
345 rc = -ENOMEM;
346 if (!ppage0_alloc)
347 break;
348
349 cfg.physAddr = page0_dma;
350 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
351
352 if ((rc = mpt_config(ioc, &cfg)) == 0) {
353 ppage0_alloc->PortIdentifier =
354 le32_to_cpu(ppage0_alloc->PortIdentifier);
355
356 ppage0_alloc->WWNN.Low =
357 le32_to_cpu(ppage0_alloc->WWNN.Low);
358
359 ppage0_alloc->WWNN.High =
360 le32_to_cpu(ppage0_alloc->WWNN.High);
361
362 ppage0_alloc->WWPN.Low =
363 le32_to_cpu(ppage0_alloc->WWPN.Low);
364
365 ppage0_alloc->WWPN.High =
366 le32_to_cpu(ppage0_alloc->WWPN.High);
367
368 ppage0_alloc->BBCredit =
369 le16_to_cpu(ppage0_alloc->BBCredit);
370
371 ppage0_alloc->MaxRxFrameSize =
372 le16_to_cpu(ppage0_alloc->MaxRxFrameSize);
373
374 port_id = ppage0_alloc->PortIdentifier;
375 num_targ++;
376 *p_p0 = *ppage0_alloc; /* save data */
377 *p_pp0++ = p_p0++; /* save addr */
378 }
379 pci_free_consistent(ioc->pcidev, data_sz,
380 (u8 *) ppage0_alloc, page0_dma);
381 if (rc != 0)
382 break;
383
384 } while (port_id <= 0xff0000);
385
386 if (num_targ) {
387 /* sort array */
388 if (num_targ > 1)
389 sort (pp0_array, num_targ, sizeof(FCDevicePage0_t *),
390 mptfc_FcDevPage0_cmp_func, NULL);
391 /* call caller's func for each targ */
392 for (ii = 0; ii < num_targ; ii++) {
393 fc = *(pp0_array+ii);
394 func(ioc, ioc_port, fc);
395 }
396 }
397
398 out:
399 kfree(pp0_array);
400 kfree(p0_array);
401 return rc;
402 }
403
404 static int
405 mptfc_generate_rport_ids(FCDevicePage0_t *pg0, struct fc_rport_identifiers *rid)
406 {
407 /* not currently usable */
408 if (pg0->Flags & (MPI_FC_DEVICE_PAGE0_FLAGS_PLOGI_INVALID |
409 MPI_FC_DEVICE_PAGE0_FLAGS_PRLI_INVALID))
410 return -1;
411
412 if (!(pg0->Flags & MPI_FC_DEVICE_PAGE0_FLAGS_TARGETID_BUS_VALID))
413 return -1;
414
415 if (!(pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_TARGET))
416 return -1;
417
418 /*
419 * board data structure already normalized to platform endianness
420 * shifted to avoid unaligned access on 64 bit architecture
421 */
422 rid->node_name = ((u64)pg0->WWNN.High) << 32 | (u64)pg0->WWNN.Low;
423 rid->port_name = ((u64)pg0->WWPN.High) << 32 | (u64)pg0->WWPN.Low;
424 rid->port_id = pg0->PortIdentifier;
425 rid->roles = FC_RPORT_ROLE_UNKNOWN;
426
427 return 0;
428 }
429
430 static void
431 mptfc_register_dev(MPT_ADAPTER *ioc, int channel, FCDevicePage0_t *pg0)
432 {
433 struct fc_rport_identifiers rport_ids;
434 struct fc_rport *rport;
435 struct mptfc_rport_info *ri;
436 int new_ri = 1;
437 u64 pn, nn;
438 VirtTarget *vtarget;
439 u32 roles = FC_RPORT_ROLE_UNKNOWN;
440
441 if (mptfc_generate_rport_ids(pg0, &rport_ids) < 0)
442 return;
443
444 roles |= FC_RPORT_ROLE_FCP_TARGET;
445 if (pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_INITIATOR)
446 roles |= FC_RPORT_ROLE_FCP_INITIATOR;
447
448 /* scan list looking for a match */
449 list_for_each_entry(ri, &ioc->fc_rports, list) {
450 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
451 if (pn == rport_ids.port_name) { /* match */
452 list_move_tail(&ri->list, &ioc->fc_rports);
453 new_ri = 0;
454 break;
455 }
456 }
457 if (new_ri) { /* allocate one */
458 ri = kzalloc(sizeof(struct mptfc_rport_info), GFP_KERNEL);
459 if (!ri)
460 return;
461 list_add_tail(&ri->list, &ioc->fc_rports);
462 }
463
464 ri->pg0 = *pg0; /* add/update pg0 data */
465 ri->flags &= ~MPT_RPORT_INFO_FLAGS_MISSING;
466
467 /* MPT_RPORT_INFO_FLAGS_REGISTERED - rport not previously deleted */
468 if (!(ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED)) {
469 ri->flags |= MPT_RPORT_INFO_FLAGS_REGISTERED;
470 rport = fc_remote_port_add(ioc->sh, channel, &rport_ids);
471 if (rport) {
472 ri->rport = rport;
473 if (new_ri) /* may have been reset by user */
474 rport->dev_loss_tmo = mptfc_dev_loss_tmo;
475 /*
476 * if already mapped, remap here. If not mapped,
477 * target_alloc will allocate vtarget and map,
478 * slave_alloc will fill in vdevice from vtarget.
479 */
480 if (ri->starget) {
481 vtarget = ri->starget->hostdata;
482 if (vtarget) {
483 vtarget->id = pg0->CurrentTargetID;
484 vtarget->channel = pg0->CurrentBus;
485 vtarget->deleted = 0;
486 }
487 }
488 *((struct mptfc_rport_info **)rport->dd_data) = ri;
489 /* scan will be scheduled once rport becomes a target */
490 fc_remote_port_rolechg(rport,roles);
491
492 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
493 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low;
494 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
495 "mptfc_reg_dev.%d: %x, %llx / %llx, tid %d, "
496 "rport tid %d, tmo %d\n",
497 ioc->name,
498 ioc->sh->host_no,
499 pg0->PortIdentifier,
500 (unsigned long long)nn,
501 (unsigned long long)pn,
502 pg0->CurrentTargetID,
503 ri->rport->scsi_target_id,
504 ri->rport->dev_loss_tmo));
505 } else {
506 list_del(&ri->list);
507 kfree(ri);
508 ri = NULL;
509 }
510 }
511 }
512
513 /*
514 * OS entry point to allow for host driver to free allocated memory
515 * Called if no device present or device being unloaded
516 */
517 static void
518 mptfc_target_destroy(struct scsi_target *starget)
519 {
520 struct fc_rport *rport;
521 struct mptfc_rport_info *ri;
522
523 rport = starget_to_rport(starget);
524 if (rport) {
525 ri = *((struct mptfc_rport_info **)rport->dd_data);
526 if (ri) /* better be! */
527 ri->starget = NULL;
528 }
529 if (starget->hostdata)
530 kfree(starget->hostdata);
531 starget->hostdata = NULL;
532 }
533
534 /*
535 * OS entry point to allow host driver to alloc memory
536 * for each scsi target. Called once per device the bus scan.
537 * Return non-zero if allocation fails.
538 */
539 static int
540 mptfc_target_alloc(struct scsi_target *starget)
541 {
542 VirtTarget *vtarget;
543 struct fc_rport *rport;
544 struct mptfc_rport_info *ri;
545 int rc;
546
547 vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL);
548 if (!vtarget)
549 return -ENOMEM;
550 starget->hostdata = vtarget;
551
552 rc = -ENODEV;
553 rport = starget_to_rport(starget);
554 if (rport) {
555 ri = *((struct mptfc_rport_info **)rport->dd_data);
556 if (ri) { /* better be! */
557 vtarget->id = ri->pg0.CurrentTargetID;
558 vtarget->channel = ri->pg0.CurrentBus;
559 ri->starget = starget;
560 rc = 0;
561 }
562 }
563 if (rc != 0) {
564 kfree(vtarget);
565 starget->hostdata = NULL;
566 }
567
568 return rc;
569 }
570 /*
571 * mptfc_dump_lun_info
572 * @ioc
573 * @rport
574 * @sdev
575 *
576 */
577 static void
578 mptfc_dump_lun_info(MPT_ADAPTER *ioc, struct fc_rport *rport, struct scsi_device *sdev,
579 VirtTarget *vtarget)
580 {
581 u64 nn, pn;
582 struct mptfc_rport_info *ri;
583
584 ri = *((struct mptfc_rport_info **)rport->dd_data);
585 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
586 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low;
587 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
588 "mptfc_slv_alloc.%d: num_luns %d, sdev.id %d, "
589 "CurrentTargetID %d, %x %llx %llx\n",
590 ioc->name,
591 sdev->host->host_no,
592 vtarget->num_luns,
593 sdev->id, ri->pg0.CurrentTargetID,
594 ri->pg0.PortIdentifier,
595 (unsigned long long)pn,
596 (unsigned long long)nn));
597 }
598
599
600 /*
601 * OS entry point to allow host driver to alloc memory
602 * for each scsi device. Called once per device the bus scan.
603 * Return non-zero if allocation fails.
604 * Init memory once per LUN.
605 */
606 static int
607 mptfc_slave_alloc(struct scsi_device *sdev)
608 {
609 MPT_SCSI_HOST *hd;
610 VirtTarget *vtarget;
611 VirtDevice *vdevice;
612 struct scsi_target *starget;
613 struct fc_rport *rport;
614 MPT_ADAPTER *ioc;
615
616 starget = scsi_target(sdev);
617 rport = starget_to_rport(starget);
618
619 if (!rport || fc_remote_port_chkready(rport))
620 return -ENXIO;
621
622 hd = shost_priv(sdev->host);
623 ioc = hd->ioc;
624
625 vdevice = kzalloc(sizeof(VirtDevice), GFP_KERNEL);
626 if (!vdevice) {
627 printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n",
628 ioc->name, sizeof(VirtDevice));
629 return -ENOMEM;
630 }
631
632
633 sdev->hostdata = vdevice;
634 vtarget = starget->hostdata;
635
636 if (vtarget->num_luns == 0) {
637 vtarget->ioc_id = ioc->id;
638 vtarget->tflags = MPT_TARGET_FLAGS_Q_YES;
639 }
640
641 vdevice->vtarget = vtarget;
642 vdevice->lun = sdev->lun;
643
644 vtarget->num_luns++;
645
646
647 mptfc_dump_lun_info(ioc, rport, sdev, vtarget);
648
649 return 0;
650 }
651
652 static int
653 mptfc_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
654 {
655 struct mptfc_rport_info *ri;
656 struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device));
657 int err;
658 VirtDevice *vdevice = SCpnt->device->hostdata;
659
660 if (!vdevice || !vdevice->vtarget) {
661 SCpnt->result = DID_NO_CONNECT << 16;
662 done(SCpnt);
663 return 0;
664 }
665
666 err = fc_remote_port_chkready(rport);
667 if (unlikely(err)) {
668 SCpnt->result = err;
669 done(SCpnt);
670 return 0;
671 }
672
673 /* dd_data is null until finished adding target */
674 ri = *((struct mptfc_rport_info **)rport->dd_data);
675 if (unlikely(!ri)) {
676 SCpnt->result = DID_IMM_RETRY << 16;
677 done(SCpnt);
678 return 0;
679 }
680
681 return mptscsih_qcmd(SCpnt,done);
682 }
683
684 /*
685 * mptfc_display_port_link_speed - displaying link speed
686 * @ioc: Pointer to MPT_ADAPTER structure
687 * @portnum: IOC Port number
688 * @pp0dest: port page0 data payload
689 *
690 */
691 static void
692 mptfc_display_port_link_speed(MPT_ADAPTER *ioc, int portnum, FCPortPage0_t *pp0dest)
693 {
694 u8 old_speed, new_speed, state;
695 char *old, *new;
696
697 if (portnum >= 2)
698 return;
699
700 old_speed = ioc->fc_link_speed[portnum];
701 new_speed = pp0dest->CurrentSpeed;
702 state = pp0dest->PortState;
703
704 if (state != MPI_FCPORTPAGE0_PORTSTATE_OFFLINE &&
705 new_speed != MPI_FCPORTPAGE0_CURRENT_SPEED_UKNOWN) {
706
707 old = old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" :
708 old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" :
709 old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" :
710 "Unknown";
711 new = new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" :
712 new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" :
713 new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" :
714 "Unknown";
715 if (old_speed == 0)
716 printk(MYIOC_s_NOTE_FMT
717 "FC Link Established, Speed = %s\n",
718 ioc->name, new);
719 else if (old_speed != new_speed)
720 printk(MYIOC_s_WARN_FMT
721 "FC Link Speed Change, Old Speed = %s, New Speed = %s\n",
722 ioc->name, old, new);
723
724 ioc->fc_link_speed[portnum] = new_speed;
725 }
726 }
727
728 /*
729 * mptfc_GetFcPortPage0 - Fetch FCPort config Page0.
730 * @ioc: Pointer to MPT_ADAPTER structure
731 * @portnum: IOC Port number
732 *
733 * Return: 0 for success
734 * -ENOMEM if no memory available
735 * -EPERM if not allowed due to ISR context
736 * -EAGAIN if no msg frames currently available
737 * -EFAULT for non-successful reply or no reply (timeout)
738 * -EINVAL portnum arg out of range (hardwired to two elements)
739 */
740 static int
741 mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum)
742 {
743 ConfigPageHeader_t hdr;
744 CONFIGPARMS cfg;
745 FCPortPage0_t *ppage0_alloc;
746 FCPortPage0_t *pp0dest;
747 dma_addr_t page0_dma;
748 int data_sz;
749 int copy_sz;
750 int rc;
751 int count = 400;
752
753 if (portnum > 1)
754 return -EINVAL;
755
756 /* Get FCPort Page 0 header */
757 hdr.PageVersion = 0;
758 hdr.PageLength = 0;
759 hdr.PageNumber = 0;
760 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
761 cfg.cfghdr.hdr = &hdr;
762 cfg.physAddr = -1;
763 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
764 cfg.dir = 0;
765 cfg.pageAddr = portnum;
766 cfg.timeout = 0;
767
768 if ((rc = mpt_config(ioc, &cfg)) != 0)
769 return rc;
770
771 if (hdr.PageLength == 0)
772 return 0;
773
774 data_sz = hdr.PageLength * 4;
775 rc = -ENOMEM;
776 ppage0_alloc = (FCPortPage0_t *) pci_alloc_consistent(ioc->pcidev, data_sz, &page0_dma);
777 if (ppage0_alloc) {
778
779 try_again:
780 memset((u8 *)ppage0_alloc, 0, data_sz);
781 cfg.physAddr = page0_dma;
782 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
783
784 if ((rc = mpt_config(ioc, &cfg)) == 0) {
785 /* save the data */
786 pp0dest = &ioc->fc_port_page0[portnum];
787 copy_sz = min_t(int, sizeof(FCPortPage0_t), data_sz);
788 memcpy(pp0dest, ppage0_alloc, copy_sz);
789
790 /*
791 * Normalize endianness of structure data,
792 * by byte-swapping all > 1 byte fields!
793 */
794 pp0dest->Flags = le32_to_cpu(pp0dest->Flags);
795 pp0dest->PortIdentifier = le32_to_cpu(pp0dest->PortIdentifier);
796 pp0dest->WWNN.Low = le32_to_cpu(pp0dest->WWNN.Low);
797 pp0dest->WWNN.High = le32_to_cpu(pp0dest->WWNN.High);
798 pp0dest->WWPN.Low = le32_to_cpu(pp0dest->WWPN.Low);
799 pp0dest->WWPN.High = le32_to_cpu(pp0dest->WWPN.High);
800 pp0dest->SupportedServiceClass = le32_to_cpu(pp0dest->SupportedServiceClass);
801 pp0dest->SupportedSpeeds = le32_to_cpu(pp0dest->SupportedSpeeds);
802 pp0dest->CurrentSpeed = le32_to_cpu(pp0dest->CurrentSpeed);
803 pp0dest->MaxFrameSize = le32_to_cpu(pp0dest->MaxFrameSize);
804 pp0dest->FabricWWNN.Low = le32_to_cpu(pp0dest->FabricWWNN.Low);
805 pp0dest->FabricWWNN.High = le32_to_cpu(pp0dest->FabricWWNN.High);
806 pp0dest->FabricWWPN.Low = le32_to_cpu(pp0dest->FabricWWPN.Low);
807 pp0dest->FabricWWPN.High = le32_to_cpu(pp0dest->FabricWWPN.High);
808 pp0dest->DiscoveredPortsCount = le32_to_cpu(pp0dest->DiscoveredPortsCount);
809 pp0dest->MaxInitiators = le32_to_cpu(pp0dest->MaxInitiators);
810
811 /*
812 * if still doing discovery,
813 * hang loose a while until finished
814 */
815 if ((pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) ||
816 (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE &&
817 (pp0dest->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_TYPE_MASK)
818 == MPI_FCPORTPAGE0_FLAGS_ATTACH_NO_INIT)) {
819 if (count-- > 0) {
820 msleep(100);
821 goto try_again;
822 }
823 printk(MYIOC_s_INFO_FMT "Firmware discovery not"
824 " complete.\n",
825 ioc->name);
826 }
827 mptfc_display_port_link_speed(ioc, portnum, pp0dest);
828 }
829
830 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) ppage0_alloc, page0_dma);
831 }
832
833 return rc;
834 }
835
836 static int
837 mptfc_WriteFcPortPage1(MPT_ADAPTER *ioc, int portnum)
838 {
839 ConfigPageHeader_t hdr;
840 CONFIGPARMS cfg;
841 int rc;
842
843 if (portnum > 1)
844 return -EINVAL;
845
846 if (!(ioc->fc_data.fc_port_page1[portnum].data))
847 return -EINVAL;
848
849 /* get fcport page 1 header */
850 hdr.PageVersion = 0;
851 hdr.PageLength = 0;
852 hdr.PageNumber = 1;
853 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
854 cfg.cfghdr.hdr = &hdr;
855 cfg.physAddr = -1;
856 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
857 cfg.dir = 0;
858 cfg.pageAddr = portnum;
859 cfg.timeout = 0;
860
861 if ((rc = mpt_config(ioc, &cfg)) != 0)
862 return rc;
863
864 if (hdr.PageLength == 0)
865 return -ENODEV;
866
867 if (hdr.PageLength*4 != ioc->fc_data.fc_port_page1[portnum].pg_sz)
868 return -EINVAL;
869
870 cfg.physAddr = ioc->fc_data.fc_port_page1[portnum].dma;
871 cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT;
872 cfg.dir = 1;
873
874 rc = mpt_config(ioc, &cfg);
875
876 return rc;
877 }
878
879 static int
880 mptfc_GetFcPortPage1(MPT_ADAPTER *ioc, int portnum)
881 {
882 ConfigPageHeader_t hdr;
883 CONFIGPARMS cfg;
884 FCPortPage1_t *page1_alloc;
885 dma_addr_t page1_dma;
886 int data_sz;
887 int rc;
888
889 if (portnum > 1)
890 return -EINVAL;
891
892 /* get fcport page 1 header */
893 hdr.PageVersion = 0;
894 hdr.PageLength = 0;
895 hdr.PageNumber = 1;
896 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
897 cfg.cfghdr.hdr = &hdr;
898 cfg.physAddr = -1;
899 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
900 cfg.dir = 0;
901 cfg.pageAddr = portnum;
902 cfg.timeout = 0;
903
904 if ((rc = mpt_config(ioc, &cfg)) != 0)
905 return rc;
906
907 if (hdr.PageLength == 0)
908 return -ENODEV;
909
910 start_over:
911
912 if (ioc->fc_data.fc_port_page1[portnum].data == NULL) {
913 data_sz = hdr.PageLength * 4;
914 if (data_sz < sizeof(FCPortPage1_t))
915 data_sz = sizeof(FCPortPage1_t);
916
917 page1_alloc = (FCPortPage1_t *) pci_alloc_consistent(ioc->pcidev,
918 data_sz,
919 &page1_dma);
920 if (!page1_alloc)
921 return -ENOMEM;
922 }
923 else {
924 page1_alloc = ioc->fc_data.fc_port_page1[portnum].data;
925 page1_dma = ioc->fc_data.fc_port_page1[portnum].dma;
926 data_sz = ioc->fc_data.fc_port_page1[portnum].pg_sz;
927 if (hdr.PageLength * 4 > data_sz) {
928 ioc->fc_data.fc_port_page1[portnum].data = NULL;
929 pci_free_consistent(ioc->pcidev, data_sz, (u8 *)
930 page1_alloc, page1_dma);
931 goto start_over;
932 }
933 }
934
935 memset(page1_alloc,0,data_sz);
936
937 cfg.physAddr = page1_dma;
938 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
939
940 if ((rc = mpt_config(ioc, &cfg)) == 0) {
941 ioc->fc_data.fc_port_page1[portnum].data = page1_alloc;
942 ioc->fc_data.fc_port_page1[portnum].pg_sz = data_sz;
943 ioc->fc_data.fc_port_page1[portnum].dma = page1_dma;
944 }
945 else {
946 ioc->fc_data.fc_port_page1[portnum].data = NULL;
947 pci_free_consistent(ioc->pcidev, data_sz, (u8 *)
948 page1_alloc, page1_dma);
949 }
950
951 return rc;
952 }
953
954 static void
955 mptfc_SetFcPortPage1_defaults(MPT_ADAPTER *ioc)
956 {
957 int ii;
958 FCPortPage1_t *pp1;
959
960 #define MPTFC_FW_DEVICE_TIMEOUT (1)
961 #define MPTFC_FW_IO_PEND_TIMEOUT (1)
962 #define ON_FLAGS (MPI_FCPORTPAGE1_FLAGS_IMMEDIATE_ERROR_REPLY)
963 #define OFF_FLAGS (MPI_FCPORTPAGE1_FLAGS_VERBOSE_RESCAN_EVENTS)
964
965 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) {
966 if (mptfc_GetFcPortPage1(ioc, ii) != 0)
967 continue;
968 pp1 = ioc->fc_data.fc_port_page1[ii].data;
969 if ((pp1->InitiatorDeviceTimeout == MPTFC_FW_DEVICE_TIMEOUT)
970 && (pp1->InitiatorIoPendTimeout == MPTFC_FW_IO_PEND_TIMEOUT)
971 && ((pp1->Flags & ON_FLAGS) == ON_FLAGS)
972 && ((pp1->Flags & OFF_FLAGS) == 0))
973 continue;
974 pp1->InitiatorDeviceTimeout = MPTFC_FW_DEVICE_TIMEOUT;
975 pp1->InitiatorIoPendTimeout = MPTFC_FW_IO_PEND_TIMEOUT;
976 pp1->Flags &= ~OFF_FLAGS;
977 pp1->Flags |= ON_FLAGS;
978 mptfc_WriteFcPortPage1(ioc, ii);
979 }
980 }
981
982
983 static void
984 mptfc_init_host_attr(MPT_ADAPTER *ioc,int portnum)
985 {
986 unsigned class = 0;
987 unsigned cos = 0;
988 unsigned speed;
989 unsigned port_type;
990 unsigned port_state;
991 FCPortPage0_t *pp0;
992 struct Scsi_Host *sh;
993 char *sn;
994
995 /* don't know what to do as only one scsi (fc) host was allocated */
996 if (portnum != 0)
997 return;
998
999 pp0 = &ioc->fc_port_page0[portnum];
1000 sh = ioc->sh;
1001
1002 sn = fc_host_symbolic_name(sh);
1003 snprintf(sn, FC_SYMBOLIC_NAME_SIZE, "%s %s%08xh",
1004 ioc->prod_name,
1005 MPT_FW_REV_MAGIC_ID_STRING,
1006 ioc->facts.FWVersion.Word);
1007
1008 fc_host_tgtid_bind_type(sh) = FC_TGTID_BIND_BY_WWPN;
1009
1010 fc_host_maxframe_size(sh) = pp0->MaxFrameSize;
1011
1012 fc_host_node_name(sh) =
1013 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low;
1014
1015 fc_host_port_name(sh) =
1016 (u64)pp0->WWPN.High << 32 | (u64)pp0->WWPN.Low;
1017
1018 fc_host_port_id(sh) = pp0->PortIdentifier;
1019
1020 class = pp0->SupportedServiceClass;
1021 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_1)
1022 cos |= FC_COS_CLASS1;
1023 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_2)
1024 cos |= FC_COS_CLASS2;
1025 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_3)
1026 cos |= FC_COS_CLASS3;
1027 fc_host_supported_classes(sh) = cos;
1028
1029 if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT)
1030 speed = FC_PORTSPEED_1GBIT;
1031 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT)
1032 speed = FC_PORTSPEED_2GBIT;
1033 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT)
1034 speed = FC_PORTSPEED_4GBIT;
1035 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_10GBIT)
1036 speed = FC_PORTSPEED_10GBIT;
1037 else
1038 speed = FC_PORTSPEED_UNKNOWN;
1039 fc_host_speed(sh) = speed;
1040
1041 speed = 0;
1042 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_1GBIT_SPEED)
1043 speed |= FC_PORTSPEED_1GBIT;
1044 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_2GBIT_SPEED)
1045 speed |= FC_PORTSPEED_2GBIT;
1046 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_4GBIT_SPEED)
1047 speed |= FC_PORTSPEED_4GBIT;
1048 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_10GBIT_SPEED)
1049 speed |= FC_PORTSPEED_10GBIT;
1050 fc_host_supported_speeds(sh) = speed;
1051
1052 port_state = FC_PORTSTATE_UNKNOWN;
1053 if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE)
1054 port_state = FC_PORTSTATE_ONLINE;
1055 else if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_OFFLINE)
1056 port_state = FC_PORTSTATE_LINKDOWN;
1057 fc_host_port_state(sh) = port_state;
1058
1059 port_type = FC_PORTTYPE_UNKNOWN;
1060 if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_POINT_TO_POINT)
1061 port_type = FC_PORTTYPE_PTP;
1062 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PRIVATE_LOOP)
1063 port_type = FC_PORTTYPE_LPORT;
1064 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PUBLIC_LOOP)
1065 port_type = FC_PORTTYPE_NLPORT;
1066 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_FABRIC_DIRECT)
1067 port_type = FC_PORTTYPE_NPORT;
1068 fc_host_port_type(sh) = port_type;
1069
1070 fc_host_fabric_name(sh) =
1071 (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_FABRIC_WWN_VALID) ?
1072 (u64) pp0->FabricWWNN.High << 32 | (u64) pp0->FabricWWPN.Low :
1073 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low;
1074
1075 }
1076
1077 static void
1078 mptfc_link_status_change(struct work_struct *work)
1079 {
1080 MPT_ADAPTER *ioc =
1081 container_of(work, MPT_ADAPTER, fc_rescan_work);
1082 int ii;
1083
1084 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++)
1085 (void) mptfc_GetFcPortPage0(ioc, ii);
1086
1087 }
1088
1089 static void
1090 mptfc_setup_reset(struct work_struct *work)
1091 {
1092 MPT_ADAPTER *ioc =
1093 container_of(work, MPT_ADAPTER, fc_setup_reset_work);
1094 u64 pn;
1095 struct mptfc_rport_info *ri;
1096 struct scsi_target *starget;
1097 VirtTarget *vtarget;
1098
1099 /* reset about to happen, delete (block) all rports */
1100 list_for_each_entry(ri, &ioc->fc_rports, list) {
1101 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) {
1102 ri->flags &= ~MPT_RPORT_INFO_FLAGS_REGISTERED;
1103 fc_remote_port_delete(ri->rport); /* won't sleep */
1104 ri->rport = NULL;
1105 starget = ri->starget;
1106 if (starget) {
1107 vtarget = starget->hostdata;
1108 if (vtarget)
1109 vtarget->deleted = 1;
1110 }
1111
1112 pn = (u64)ri->pg0.WWPN.High << 32 |
1113 (u64)ri->pg0.WWPN.Low;
1114 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
1115 "mptfc_setup_reset.%d: %llx deleted\n",
1116 ioc->name,
1117 ioc->sh->host_no,
1118 (unsigned long long)pn));
1119 }
1120 }
1121 }
1122
1123 static void
1124 mptfc_rescan_devices(struct work_struct *work)
1125 {
1126 MPT_ADAPTER *ioc =
1127 container_of(work, MPT_ADAPTER, fc_rescan_work);
1128 int ii;
1129 u64 pn;
1130 struct mptfc_rport_info *ri;
1131 struct scsi_target *starget;
1132 VirtTarget *vtarget;
1133
1134 /* start by tagging all ports as missing */
1135 list_for_each_entry(ri, &ioc->fc_rports, list) {
1136 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) {
1137 ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING;
1138 }
1139 }
1140
1141 /*
1142 * now rescan devices known to adapter,
1143 * will reregister existing rports
1144 */
1145 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1146 (void) mptfc_GetFcPortPage0(ioc, ii);
1147 mptfc_init_host_attr(ioc, ii); /* refresh */
1148 mptfc_GetFcDevPage0(ioc, ii, mptfc_register_dev);
1149 }
1150
1151 /* delete devices still missing */
1152 list_for_each_entry(ri, &ioc->fc_rports, list) {
1153 /* if newly missing, delete it */
1154 if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) {
1155
1156 ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED|
1157 MPT_RPORT_INFO_FLAGS_MISSING);
1158 fc_remote_port_delete(ri->rport); /* won't sleep */
1159 ri->rport = NULL;
1160 starget = ri->starget;
1161 if (starget) {
1162 vtarget = starget->hostdata;
1163 if (vtarget)
1164 vtarget->deleted = 1;
1165 }
1166
1167 pn = (u64)ri->pg0.WWPN.High << 32 |
1168 (u64)ri->pg0.WWPN.Low;
1169 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
1170 "mptfc_rescan.%d: %llx deleted\n",
1171 ioc->name,
1172 ioc->sh->host_no,
1173 (unsigned long long)pn));
1174 }
1175 }
1176 }
1177
1178 static int
1179 mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id)
1180 {
1181 struct Scsi_Host *sh;
1182 MPT_SCSI_HOST *hd;
1183 MPT_ADAPTER *ioc;
1184 unsigned long flags;
1185 int ii;
1186 int numSGE = 0;
1187 int scale;
1188 int ioc_cap;
1189 int error=0;
1190 int r;
1191
1192 if ((r = mpt_attach(pdev,id)) != 0)
1193 return r;
1194
1195 ioc = pci_get_drvdata(pdev);
1196 ioc->DoneCtx = mptfcDoneCtx;
1197 ioc->TaskCtx = mptfcTaskCtx;
1198 ioc->InternalCtx = mptfcInternalCtx;
1199
1200 /* Added sanity check on readiness of the MPT adapter.
1201 */
1202 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) {
1203 printk(MYIOC_s_WARN_FMT
1204 "Skipping because it's not operational!\n",
1205 ioc->name);
1206 error = -ENODEV;
1207 goto out_mptfc_probe;
1208 }
1209
1210 if (!ioc->active) {
1211 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n",
1212 ioc->name);
1213 error = -ENODEV;
1214 goto out_mptfc_probe;
1215 }
1216
1217 /* Sanity check - ensure at least 1 port is INITIATOR capable
1218 */
1219 ioc_cap = 0;
1220 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1221 if (ioc->pfacts[ii].ProtocolFlags &
1222 MPI_PORTFACTS_PROTOCOL_INITIATOR)
1223 ioc_cap ++;
1224 }
1225
1226 if (!ioc_cap) {
1227 printk(MYIOC_s_WARN_FMT
1228 "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n",
1229 ioc->name, ioc);
1230 return 0;
1231 }
1232
1233 sh = scsi_host_alloc(&mptfc_driver_template, sizeof(MPT_SCSI_HOST));
1234
1235 if (!sh) {
1236 printk(MYIOC_s_WARN_FMT
1237 "Unable to register controller with SCSI subsystem\n",
1238 ioc->name);
1239 error = -1;
1240 goto out_mptfc_probe;
1241 }
1242
1243 spin_lock_init(&ioc->fc_rescan_work_lock);
1244 INIT_WORK(&ioc->fc_rescan_work, mptfc_rescan_devices);
1245 INIT_WORK(&ioc->fc_setup_reset_work, mptfc_setup_reset);
1246 INIT_WORK(&ioc->fc_lsc_work, mptfc_link_status_change);
1247
1248 spin_lock_irqsave(&ioc->FreeQlock, flags);
1249
1250 /* Attach the SCSI Host to the IOC structure
1251 */
1252 ioc->sh = sh;
1253
1254 sh->io_port = 0;
1255 sh->n_io_port = 0;
1256 sh->irq = 0;
1257
1258 /* set 16 byte cdb's */
1259 sh->max_cmd_len = 16;
1260
1261 sh->max_id = ioc->pfacts->MaxDevices;
1262 sh->max_lun = max_lun;
1263
1264 /* Required entry.
1265 */
1266 sh->unique_id = ioc->id;
1267
1268 /* Verify that we won't exceed the maximum
1269 * number of chain buffers
1270 * We can optimize: ZZ = req_sz/sizeof(SGE)
1271 * For 32bit SGE's:
1272 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ
1273 * + (req_sz - 64)/sizeof(SGE)
1274 * A slightly different algorithm is required for
1275 * 64bit SGEs.
1276 */
1277 scale = ioc->req_sz/ioc->SGE_size;
1278 if (ioc->sg_addr_size == sizeof(u64)) {
1279 numSGE = (scale - 1) *
1280 (ioc->facts.MaxChainDepth-1) + scale +
1281 (ioc->req_sz - 60) / ioc->SGE_size;
1282 } else {
1283 numSGE = 1 + (scale - 1) *
1284 (ioc->facts.MaxChainDepth-1) + scale +
1285 (ioc->req_sz - 64) / ioc->SGE_size;
1286 }
1287
1288 if (numSGE < sh->sg_tablesize) {
1289 /* Reset this value */
1290 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1291 "Resetting sg_tablesize to %d from %d\n",
1292 ioc->name, numSGE, sh->sg_tablesize));
1293 sh->sg_tablesize = numSGE;
1294 }
1295
1296 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1297
1298 hd = shost_priv(sh);
1299 hd->ioc = ioc;
1300
1301 /* SCSI needs scsi_cmnd lookup table!
1302 * (with size equal to req_depth*PtrSz!)
1303 */
1304 ioc->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC);
1305 if (!ioc->ScsiLookup) {
1306 error = -ENOMEM;
1307 goto out_mptfc_probe;
1308 }
1309 spin_lock_init(&ioc->scsi_lookup_lock);
1310
1311 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScsiLookup @ %p\n",
1312 ioc->name, ioc->ScsiLookup));
1313
1314 hd->last_queue_full = 0;
1315
1316 sh->transportt = mptfc_transport_template;
1317 error = scsi_add_host (sh, &ioc->pcidev->dev);
1318 if(error) {
1319 dprintk(ioc, printk(MYIOC_s_ERR_FMT
1320 "scsi_add_host failed\n", ioc->name));
1321 goto out_mptfc_probe;
1322 }
1323
1324 /* initialize workqueue */
1325
1326 snprintf(ioc->fc_rescan_work_q_name, sizeof(ioc->fc_rescan_work_q_name),
1327 "mptfc_wq_%d", sh->host_no);
1328 ioc->fc_rescan_work_q =
1329 create_singlethread_workqueue(ioc->fc_rescan_work_q_name);
1330 if (!ioc->fc_rescan_work_q)
1331 goto out_mptfc_probe;
1332
1333 /*
1334 * Pre-fetch FC port WWN and stuff...
1335 * (FCPortPage0_t stuff)
1336 */
1337 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1338 (void) mptfc_GetFcPortPage0(ioc, ii);
1339 }
1340 mptfc_SetFcPortPage1_defaults(ioc);
1341
1342 /*
1343 * scan for rports -
1344 * by doing it via the workqueue, some locking is eliminated
1345 */
1346
1347 queue_work(ioc->fc_rescan_work_q, &ioc->fc_rescan_work);
1348 flush_workqueue(ioc->fc_rescan_work_q);
1349
1350 return 0;
1351
1352 out_mptfc_probe:
1353
1354 mptscsih_remove(pdev);
1355 return error;
1356 }
1357
1358 static struct pci_driver mptfc_driver = {
1359 .name = "mptfc",
1360 .id_table = mptfc_pci_table,
1361 .probe = mptfc_probe,
1362 .remove = __devexit_p(mptfc_remove),
1363 .shutdown = mptscsih_shutdown,
1364 #ifdef CONFIG_PM
1365 .suspend = mptscsih_suspend,
1366 .resume = mptscsih_resume,
1367 #endif
1368 };
1369
1370 static int
1371 mptfc_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
1372 {
1373 MPT_SCSI_HOST *hd;
1374 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
1375 unsigned long flags;
1376 int rc=1;
1377
1378 if (ioc->bus_type != FC)
1379 return 0;
1380
1381 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n",
1382 ioc->name, event));
1383
1384 if (ioc->sh == NULL ||
1385 ((hd = shost_priv(ioc->sh)) == NULL))
1386 return 1;
1387
1388 switch (event) {
1389 case MPI_EVENT_RESCAN:
1390 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1391 if (ioc->fc_rescan_work_q) {
1392 queue_work(ioc->fc_rescan_work_q,
1393 &ioc->fc_rescan_work);
1394 }
1395 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1396 break;
1397 case MPI_EVENT_LINK_STATUS_CHANGE:
1398 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1399 if (ioc->fc_rescan_work_q) {
1400 queue_work(ioc->fc_rescan_work_q,
1401 &ioc->fc_lsc_work);
1402 }
1403 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1404 break;
1405 default:
1406 rc = mptscsih_event_process(ioc,pEvReply);
1407 break;
1408 }
1409 return rc;
1410 }
1411
1412 static int
1413 mptfc_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
1414 {
1415 int rc;
1416 unsigned long flags;
1417
1418 rc = mptscsih_ioc_reset(ioc,reset_phase);
1419 if ((ioc->bus_type != FC) || (!rc))
1420 return rc;
1421
1422
1423 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1424 ": IOC %s_reset routed to FC host driver!\n",ioc->name,
1425 reset_phase==MPT_IOC_SETUP_RESET ? "setup" : (
1426 reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post")));
1427
1428 if (reset_phase == MPT_IOC_SETUP_RESET) {
1429 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1430 if (ioc->fc_rescan_work_q) {
1431 queue_work(ioc->fc_rescan_work_q,
1432 &ioc->fc_setup_reset_work);
1433 }
1434 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1435 }
1436
1437 else if (reset_phase == MPT_IOC_PRE_RESET) {
1438 }
1439
1440 else { /* MPT_IOC_POST_RESET */
1441 mptfc_SetFcPortPage1_defaults(ioc);
1442 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1443 if (ioc->fc_rescan_work_q) {
1444 queue_work(ioc->fc_rescan_work_q,
1445 &ioc->fc_rescan_work);
1446 }
1447 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1448 }
1449 return 1;
1450 }
1451
1452 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1453 /**
1454 * mptfc_init - Register MPT adapter(s) as SCSI host(s) with SCSI mid-layer.
1455 *
1456 * Returns 0 for success, non-zero for failure.
1457 */
1458 static int __init
1459 mptfc_init(void)
1460 {
1461 int error;
1462
1463 show_mptmod_ver(my_NAME, my_VERSION);
1464
1465 /* sanity check module parameters */
1466 if (mptfc_dev_loss_tmo <= 0)
1467 mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO;
1468
1469 mptfc_transport_template =
1470 fc_attach_transport(&mptfc_transport_functions);
1471
1472 if (!mptfc_transport_template)
1473 return -ENODEV;
1474
1475 mptfcDoneCtx = mpt_register(mptscsih_io_done, MPTFC_DRIVER);
1476 mptfcTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTFC_DRIVER);
1477 mptfcInternalCtx = mpt_register(mptscsih_scandv_complete, MPTFC_DRIVER);
1478
1479 mpt_event_register(mptfcDoneCtx, mptfc_event_process);
1480 mpt_reset_register(mptfcDoneCtx, mptfc_ioc_reset);
1481
1482 error = pci_register_driver(&mptfc_driver);
1483 if (error)
1484 fc_release_transport(mptfc_transport_template);
1485
1486 return error;
1487 }
1488
1489 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1490 /**
1491 * mptfc_remove - Remove fc infrastructure for devices
1492 * @pdev: Pointer to pci_dev structure
1493 *
1494 */
1495 static void __devexit
1496 mptfc_remove(struct pci_dev *pdev)
1497 {
1498 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1499 struct mptfc_rport_info *p, *n;
1500 struct workqueue_struct *work_q;
1501 unsigned long flags;
1502 int ii;
1503
1504 /* destroy workqueue */
1505 if ((work_q=ioc->fc_rescan_work_q)) {
1506 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1507 ioc->fc_rescan_work_q = NULL;
1508 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1509 destroy_workqueue(work_q);
1510 }
1511
1512 fc_remove_host(ioc->sh);
1513
1514 list_for_each_entry_safe(p, n, &ioc->fc_rports, list) {
1515 list_del(&p->list);
1516 kfree(p);
1517 }
1518
1519 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) {
1520 if (ioc->fc_data.fc_port_page1[ii].data) {
1521 pci_free_consistent(ioc->pcidev,
1522 ioc->fc_data.fc_port_page1[ii].pg_sz,
1523 (u8 *) ioc->fc_data.fc_port_page1[ii].data,
1524 ioc->fc_data.fc_port_page1[ii].dma);
1525 ioc->fc_data.fc_port_page1[ii].data = NULL;
1526 }
1527 }
1528
1529 mptscsih_remove(pdev);
1530 }
1531
1532 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1533 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1534 /**
1535 * mptfc_exit - Unregisters MPT adapter(s)
1536 *
1537 */
1538 static void __exit
1539 mptfc_exit(void)
1540 {
1541 pci_unregister_driver(&mptfc_driver);
1542 fc_release_transport(mptfc_transport_template);
1543
1544 mpt_reset_deregister(mptfcDoneCtx);
1545 mpt_event_deregister(mptfcDoneCtx);
1546
1547 mpt_deregister(mptfcInternalCtx);
1548 mpt_deregister(mptfcTaskCtx);
1549 mpt_deregister(mptfcDoneCtx);
1550 }
1551
1552 module_init(mptfc_init);
1553 module_exit(mptfc_exit);
Linux with added FPC-III support