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Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik...
[deliverable/linux.git] / drivers / message / fusion / mptfc.c
1 /*
2 * linux/drivers/message/fusion/mptfc.c
3 * For use with LSI Logic PCI chip/adapter(s)
4 * running LSI Logic Fusion MPT (Message Passing Technology) firmware.
5 *
6 * Copyright (c) 1999-2005 LSI Logic Corporation
7 * (mailto:mpt_linux_developer@lsil.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_compat.h" /* linux-2.6 tweaks */
47 #include <linux/module.h>
48 #include <linux/kernel.h>
49 #include <linux/init.h>
50 #include <linux/errno.h>
51 #include <linux/kdev_t.h>
52 #include <linux/blkdev.h>
53 #include <linux/delay.h> /* for mdelay */
54 #include <linux/interrupt.h> /* needed for in_interrupt() proto */
55 #include <linux/reboot.h> /* notifier code */
56 #include <linux/sched.h>
57 #include <linux/workqueue.h>
58 #include <linux/sort.h>
59
60 #include <scsi/scsi.h>
61 #include <scsi/scsi_cmnd.h>
62 #include <scsi/scsi_device.h>
63 #include <scsi/scsi_host.h>
64 #include <scsi/scsi_tcq.h>
65 #include <scsi/scsi_transport_fc.h>
66
67 #include "mptbase.h"
68 #include "mptscsih.h"
69
70 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
71 #define my_NAME "Fusion MPT FC Host driver"
72 #define my_VERSION MPT_LINUX_VERSION_COMMON
73 #define MYNAM "mptfc"
74
75 MODULE_AUTHOR(MODULEAUTHOR);
76 MODULE_DESCRIPTION(my_NAME);
77 MODULE_LICENSE("GPL");
78
79 /* Command line args */
80 static int mpt_pq_filter = 0;
81 module_param(mpt_pq_filter, int, 0);
82 MODULE_PARM_DESC(mpt_pq_filter, " Enable peripheral qualifier filter: enable=1 (default=0)");
83
84 #define MPTFC_DEV_LOSS_TMO (60)
85 static int mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO; /* reasonable default */
86 module_param(mptfc_dev_loss_tmo, int, 0);
87 MODULE_PARM_DESC(mptfc_dev_loss_tmo, " Initial time the driver programs the "
88 " transport to wait for an rport to "
89 " return following a device loss event."
90 " Default=60.");
91
92 static int mptfcDoneCtx = -1;
93 static int mptfcTaskCtx = -1;
94 static int mptfcInternalCtx = -1; /* Used only for internal commands */
95
96 static int mptfc_target_alloc(struct scsi_target *starget);
97 static int mptfc_slave_alloc(struct scsi_device *sdev);
98 static int mptfc_qcmd(struct scsi_cmnd *SCpnt,
99 void (*done)(struct scsi_cmnd *));
100 static void mptfc_target_destroy(struct scsi_target *starget);
101 static void mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout);
102 static void __devexit mptfc_remove(struct pci_dev *pdev);
103
104 static struct scsi_host_template mptfc_driver_template = {
105 .module = THIS_MODULE,
106 .proc_name = "mptfc",
107 .proc_info = mptscsih_proc_info,
108 .name = "MPT FC Host",
109 .info = mptscsih_info,
110 .queuecommand = mptfc_qcmd,
111 .target_alloc = mptfc_target_alloc,
112 .slave_alloc = mptfc_slave_alloc,
113 .slave_configure = mptscsih_slave_configure,
114 .target_destroy = mptfc_target_destroy,
115 .slave_destroy = mptscsih_slave_destroy,
116 .change_queue_depth = mptscsih_change_queue_depth,
117 .eh_abort_handler = mptscsih_abort,
118 .eh_device_reset_handler = mptscsih_dev_reset,
119 .eh_bus_reset_handler = mptscsih_bus_reset,
120 .eh_host_reset_handler = mptscsih_host_reset,
121 .bios_param = mptscsih_bios_param,
122 .can_queue = MPT_FC_CAN_QUEUE,
123 .this_id = -1,
124 .sg_tablesize = MPT_SCSI_SG_DEPTH,
125 .max_sectors = 8192,
126 .cmd_per_lun = 7,
127 .use_clustering = ENABLE_CLUSTERING,
128 };
129
130 /****************************************************************************
131 * Supported hardware
132 */
133
134 static struct pci_device_id mptfc_pci_table[] = {
135 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC909,
136 PCI_ANY_ID, PCI_ANY_ID },
137 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC919,
138 PCI_ANY_ID, PCI_ANY_ID },
139 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC929,
140 PCI_ANY_ID, PCI_ANY_ID },
141 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC919X,
142 PCI_ANY_ID, PCI_ANY_ID },
143 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC929X,
144 PCI_ANY_ID, PCI_ANY_ID },
145 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC939X,
146 PCI_ANY_ID, PCI_ANY_ID },
147 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC949X,
148 PCI_ANY_ID, PCI_ANY_ID },
149 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC949ES,
150 PCI_ANY_ID, PCI_ANY_ID },
151 {0} /* Terminating entry */
152 };
153 MODULE_DEVICE_TABLE(pci, mptfc_pci_table);
154
155 static struct scsi_transport_template *mptfc_transport_template = NULL;
156
157 static struct fc_function_template mptfc_transport_functions = {
158 .dd_fcrport_size = 8,
159 .show_host_node_name = 1,
160 .show_host_port_name = 1,
161 .show_host_supported_classes = 1,
162 .show_host_port_id = 1,
163 .show_rport_supported_classes = 1,
164 .show_starget_node_name = 1,
165 .show_starget_port_name = 1,
166 .show_starget_port_id = 1,
167 .set_rport_dev_loss_tmo = mptfc_set_rport_loss_tmo,
168 .show_rport_dev_loss_tmo = 1,
169
170 };
171
172 static void
173 mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
174 {
175 if (timeout > 0)
176 rport->dev_loss_tmo = timeout;
177 else
178 rport->dev_loss_tmo = mptfc_dev_loss_tmo;
179 }
180
181 static int
182 mptfc_FcDevPage0_cmp_func(const void *a, const void *b)
183 {
184 FCDevicePage0_t **aa = (FCDevicePage0_t **)a;
185 FCDevicePage0_t **bb = (FCDevicePage0_t **)b;
186
187 if ((*aa)->CurrentBus == (*bb)->CurrentBus) {
188 if ((*aa)->CurrentTargetID == (*bb)->CurrentTargetID)
189 return 0;
190 if ((*aa)->CurrentTargetID < (*bb)->CurrentTargetID)
191 return -1;
192 return 1;
193 }
194 if ((*aa)->CurrentBus < (*bb)->CurrentBus)
195 return -1;
196 return 1;
197 }
198
199 static int
200 mptfc_GetFcDevPage0(MPT_ADAPTER *ioc, int ioc_port,
201 void(*func)(MPT_ADAPTER *ioc,int channel, FCDevicePage0_t *arg))
202 {
203 ConfigPageHeader_t hdr;
204 CONFIGPARMS cfg;
205 FCDevicePage0_t *ppage0_alloc, *fc;
206 dma_addr_t page0_dma;
207 int data_sz;
208 int ii;
209
210 FCDevicePage0_t *p0_array=NULL, *p_p0;
211 FCDevicePage0_t **pp0_array=NULL, **p_pp0;
212
213 int rc = -ENOMEM;
214 U32 port_id = 0xffffff;
215 int num_targ = 0;
216 int max_bus = ioc->facts.MaxBuses;
217 int max_targ = ioc->facts.MaxDevices;
218
219 if (max_bus == 0 || max_targ == 0)
220 goto out;
221
222 data_sz = sizeof(FCDevicePage0_t) * max_bus * max_targ;
223 p_p0 = p0_array = kzalloc(data_sz, GFP_KERNEL);
224 if (!p0_array)
225 goto out;
226
227 data_sz = sizeof(FCDevicePage0_t *) * max_bus * max_targ;
228 p_pp0 = pp0_array = kzalloc(data_sz, GFP_KERNEL);
229 if (!pp0_array)
230 goto out;
231
232 do {
233 /* Get FC Device Page 0 header */
234 hdr.PageVersion = 0;
235 hdr.PageLength = 0;
236 hdr.PageNumber = 0;
237 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_DEVICE;
238 cfg.cfghdr.hdr = &hdr;
239 cfg.physAddr = -1;
240 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
241 cfg.dir = 0;
242 cfg.pageAddr = port_id;
243 cfg.timeout = 0;
244
245 if ((rc = mpt_config(ioc, &cfg)) != 0)
246 break;
247
248 if (hdr.PageLength <= 0)
249 break;
250
251 data_sz = hdr.PageLength * 4;
252 ppage0_alloc = pci_alloc_consistent(ioc->pcidev, data_sz,
253 &page0_dma);
254 rc = -ENOMEM;
255 if (!ppage0_alloc)
256 break;
257
258 cfg.physAddr = page0_dma;
259 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
260
261 if ((rc = mpt_config(ioc, &cfg)) == 0) {
262 ppage0_alloc->PortIdentifier =
263 le32_to_cpu(ppage0_alloc->PortIdentifier);
264
265 ppage0_alloc->WWNN.Low =
266 le32_to_cpu(ppage0_alloc->WWNN.Low);
267
268 ppage0_alloc->WWNN.High =
269 le32_to_cpu(ppage0_alloc->WWNN.High);
270
271 ppage0_alloc->WWPN.Low =
272 le32_to_cpu(ppage0_alloc->WWPN.Low);
273
274 ppage0_alloc->WWPN.High =
275 le32_to_cpu(ppage0_alloc->WWPN.High);
276
277 ppage0_alloc->BBCredit =
278 le16_to_cpu(ppage0_alloc->BBCredit);
279
280 ppage0_alloc->MaxRxFrameSize =
281 le16_to_cpu(ppage0_alloc->MaxRxFrameSize);
282
283 port_id = ppage0_alloc->PortIdentifier;
284 num_targ++;
285 *p_p0 = *ppage0_alloc; /* save data */
286 *p_pp0++ = p_p0++; /* save addr */
287 }
288 pci_free_consistent(ioc->pcidev, data_sz,
289 (u8 *) ppage0_alloc, page0_dma);
290 if (rc != 0)
291 break;
292
293 } while (port_id <= 0xff0000);
294
295 if (num_targ) {
296 /* sort array */
297 if (num_targ > 1)
298 sort (pp0_array, num_targ, sizeof(FCDevicePage0_t *),
299 mptfc_FcDevPage0_cmp_func, NULL);
300 /* call caller's func for each targ */
301 for (ii = 0; ii < num_targ; ii++) {
302 fc = *(pp0_array+ii);
303 func(ioc, ioc_port, fc);
304 }
305 }
306
307 out:
308 kfree(pp0_array);
309 kfree(p0_array);
310 return rc;
311 }
312
313 static int
314 mptfc_generate_rport_ids(FCDevicePage0_t *pg0, struct fc_rport_identifiers *rid)
315 {
316 /* not currently usable */
317 if (pg0->Flags & (MPI_FC_DEVICE_PAGE0_FLAGS_PLOGI_INVALID |
318 MPI_FC_DEVICE_PAGE0_FLAGS_PRLI_INVALID))
319 return -1;
320
321 if (!(pg0->Flags & MPI_FC_DEVICE_PAGE0_FLAGS_TARGETID_BUS_VALID))
322 return -1;
323
324 if (!(pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_TARGET))
325 return -1;
326
327 /*
328 * board data structure already normalized to platform endianness
329 * shifted to avoid unaligned access on 64 bit architecture
330 */
331 rid->node_name = ((u64)pg0->WWNN.High) << 32 | (u64)pg0->WWNN.Low;
332 rid->port_name = ((u64)pg0->WWPN.High) << 32 | (u64)pg0->WWPN.Low;
333 rid->port_id = pg0->PortIdentifier;
334 rid->roles = FC_RPORT_ROLE_UNKNOWN;
335
336 return 0;
337 }
338
339 static void
340 mptfc_register_dev(MPT_ADAPTER *ioc, int channel, FCDevicePage0_t *pg0)
341 {
342 struct fc_rport_identifiers rport_ids;
343 struct fc_rport *rport;
344 struct mptfc_rport_info *ri;
345 int new_ri = 1;
346 u64 pn, nn;
347 VirtTarget *vtarget;
348 u32 roles = FC_RPORT_ROLE_UNKNOWN;
349
350 if (mptfc_generate_rport_ids(pg0, &rport_ids) < 0)
351 return;
352
353 roles |= FC_RPORT_ROLE_FCP_TARGET;
354 if (pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_INITIATOR)
355 roles |= FC_RPORT_ROLE_FCP_INITIATOR;
356
357 /* scan list looking for a match */
358 list_for_each_entry(ri, &ioc->fc_rports, list) {
359 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
360 if (pn == rport_ids.port_name) { /* match */
361 list_move_tail(&ri->list, &ioc->fc_rports);
362 new_ri = 0;
363 break;
364 }
365 }
366 if (new_ri) { /* allocate one */
367 ri = kzalloc(sizeof(struct mptfc_rport_info), GFP_KERNEL);
368 if (!ri)
369 return;
370 list_add_tail(&ri->list, &ioc->fc_rports);
371 }
372
373 ri->pg0 = *pg0; /* add/update pg0 data */
374 ri->flags &= ~MPT_RPORT_INFO_FLAGS_MISSING;
375
376 /* MPT_RPORT_INFO_FLAGS_REGISTERED - rport not previously deleted */
377 if (!(ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED)) {
378 ri->flags |= MPT_RPORT_INFO_FLAGS_REGISTERED;
379 rport = fc_remote_port_add(ioc->sh, channel, &rport_ids);
380 if (rport) {
381 ri->rport = rport;
382 if (new_ri) /* may have been reset by user */
383 rport->dev_loss_tmo = mptfc_dev_loss_tmo;
384 /*
385 * if already mapped, remap here. If not mapped,
386 * target_alloc will allocate vtarget and map,
387 * slave_alloc will fill in vdev from vtarget.
388 */
389 if (ri->starget) {
390 vtarget = ri->starget->hostdata;
391 if (vtarget) {
392 vtarget->target_id = pg0->CurrentTargetID;
393 vtarget->bus_id = pg0->CurrentBus;
394 }
395 }
396 *((struct mptfc_rport_info **)rport->dd_data) = ri;
397 /* scan will be scheduled once rport becomes a target */
398 fc_remote_port_rolechg(rport,roles);
399
400 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
401 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low;
402 dfcprintk ((MYIOC_s_INFO_FMT
403 "mptfc_reg_dev.%d: %x, %llx / %llx, tid %d, "
404 "rport tid %d, tmo %d\n",
405 ioc->name,
406 ioc->sh->host_no,
407 pg0->PortIdentifier,
408 (unsigned long long)nn,
409 (unsigned long long)pn,
410 pg0->CurrentTargetID,
411 ri->rport->scsi_target_id,
412 ri->rport->dev_loss_tmo));
413 } else {
414 list_del(&ri->list);
415 kfree(ri);
416 ri = NULL;
417 }
418 }
419 }
420
421 /*
422 * OS entry point to allow for host driver to free allocated memory
423 * Called if no device present or device being unloaded
424 */
425 static void
426 mptfc_target_destroy(struct scsi_target *starget)
427 {
428 struct fc_rport *rport;
429 struct mptfc_rport_info *ri;
430
431 rport = starget_to_rport(starget);
432 if (rport) {
433 ri = *((struct mptfc_rport_info **)rport->dd_data);
434 if (ri) /* better be! */
435 ri->starget = NULL;
436 }
437 if (starget->hostdata)
438 kfree(starget->hostdata);
439 starget->hostdata = NULL;
440 }
441
442 /*
443 * OS entry point to allow host driver to alloc memory
444 * for each scsi target. Called once per device the bus scan.
445 * Return non-zero if allocation fails.
446 */
447 static int
448 mptfc_target_alloc(struct scsi_target *starget)
449 {
450 VirtTarget *vtarget;
451 struct fc_rport *rport;
452 struct mptfc_rport_info *ri;
453 int rc;
454
455 vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL);
456 if (!vtarget)
457 return -ENOMEM;
458 starget->hostdata = vtarget;
459
460 rc = -ENODEV;
461 rport = starget_to_rport(starget);
462 if (rport) {
463 ri = *((struct mptfc_rport_info **)rport->dd_data);
464 if (ri) { /* better be! */
465 vtarget->target_id = ri->pg0.CurrentTargetID;
466 vtarget->bus_id = ri->pg0.CurrentBus;
467 ri->starget = starget;
468 rc = 0;
469 }
470 }
471 if (rc != 0) {
472 kfree(vtarget);
473 starget->hostdata = NULL;
474 }
475
476 return rc;
477 }
478
479 /*
480 * OS entry point to allow host driver to alloc memory
481 * for each scsi device. Called once per device the bus scan.
482 * Return non-zero if allocation fails.
483 * Init memory once per LUN.
484 */
485 static int
486 mptfc_slave_alloc(struct scsi_device *sdev)
487 {
488 MPT_SCSI_HOST *hd;
489 VirtTarget *vtarget;
490 VirtDevice *vdev;
491 struct scsi_target *starget;
492 struct fc_rport *rport;
493
494
495 starget = scsi_target(sdev);
496 rport = starget_to_rport(starget);
497
498 if (!rport || fc_remote_port_chkready(rport))
499 return -ENXIO;
500
501 hd = (MPT_SCSI_HOST *)sdev->host->hostdata;
502
503 vdev = kzalloc(sizeof(VirtDevice), GFP_KERNEL);
504 if (!vdev) {
505 printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n",
506 hd->ioc->name, sizeof(VirtDevice));
507 return -ENOMEM;
508 }
509
510
511 sdev->hostdata = vdev;
512 vtarget = starget->hostdata;
513
514 if (vtarget->num_luns == 0) {
515 vtarget->ioc_id = hd->ioc->id;
516 vtarget->tflags = MPT_TARGET_FLAGS_Q_YES |
517 MPT_TARGET_FLAGS_VALID_INQUIRY;
518 hd->Targets[sdev->id] = vtarget;
519 }
520
521 vdev->vtarget = vtarget;
522 vdev->lun = sdev->lun;
523
524 vtarget->num_luns++;
525
526
527 #ifdef DMPT_DEBUG_FC
528 {
529 u64 nn, pn;
530 struct mptfc_rport_info *ri;
531 ri = *((struct mptfc_rport_info **)rport->dd_data);
532 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
533 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low;
534 dfcprintk ((MYIOC_s_INFO_FMT
535 "mptfc_slv_alloc.%d: num_luns %d, sdev.id %d, "
536 "CurrentTargetID %d, %x %llx %llx\n",
537 hd->ioc->name,
538 sdev->host->host_no,
539 vtarget->num_luns,
540 sdev->id, ri->pg0.CurrentTargetID,
541 ri->pg0.PortIdentifier,
542 (unsigned long long)pn,
543 (unsigned long long)nn));
544 }
545 #endif
546
547 return 0;
548 }
549
550 static int
551 mptfc_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
552 {
553 struct mptfc_rport_info *ri;
554 struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device));
555 int err;
556
557 err = fc_remote_port_chkready(rport);
558 if (unlikely(err)) {
559 SCpnt->result = err;
560 done(SCpnt);
561 return 0;
562 }
563
564 /* dd_data is null until finished adding target */
565 ri = *((struct mptfc_rport_info **)rport->dd_data);
566 if (unlikely(!ri)) {
567 dfcprintk ((MYIOC_s_INFO_FMT
568 "mptfc_qcmd.%d: %d:%d, dd_data is null.\n",
569 ((MPT_SCSI_HOST *) SCpnt->device->host->hostdata)->ioc->name,
570 ((MPT_SCSI_HOST *) SCpnt->device->host->hostdata)->ioc->sh->host_no,
571 SCpnt->device->id,SCpnt->device->lun));
572 SCpnt->result = DID_IMM_RETRY << 16;
573 done(SCpnt);
574 return 0;
575 }
576
577 err = mptscsih_qcmd(SCpnt,done);
578 #ifdef DMPT_DEBUG_FC
579 if (unlikely(err)) {
580 dfcprintk ((MYIOC_s_INFO_FMT
581 "mptfc_qcmd.%d: %d:%d, mptscsih_qcmd returns non-zero, (%x).\n",
582 ((MPT_SCSI_HOST *) SCpnt->device->host->hostdata)->ioc->name,
583 ((MPT_SCSI_HOST *) SCpnt->device->host->hostdata)->ioc->sh->host_no,
584 SCpnt->device->id,SCpnt->device->lun,err));
585 }
586 #endif
587 return err;
588 }
589
590 /*
591 * mptfc_GetFcPortPage0 - Fetch FCPort config Page0.
592 * @ioc: Pointer to MPT_ADAPTER structure
593 * @portnum: IOC Port number
594 *
595 * Return: 0 for success
596 * -ENOMEM if no memory available
597 * -EPERM if not allowed due to ISR context
598 * -EAGAIN if no msg frames currently available
599 * -EFAULT for non-successful reply or no reply (timeout)
600 * -EINVAL portnum arg out of range (hardwired to two elements)
601 */
602 static int
603 mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum)
604 {
605 ConfigPageHeader_t hdr;
606 CONFIGPARMS cfg;
607 FCPortPage0_t *ppage0_alloc;
608 FCPortPage0_t *pp0dest;
609 dma_addr_t page0_dma;
610 int data_sz;
611 int copy_sz;
612 int rc;
613 int count = 400;
614
615 if (portnum > 1)
616 return -EINVAL;
617
618 /* Get FCPort Page 0 header */
619 hdr.PageVersion = 0;
620 hdr.PageLength = 0;
621 hdr.PageNumber = 0;
622 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
623 cfg.cfghdr.hdr = &hdr;
624 cfg.physAddr = -1;
625 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
626 cfg.dir = 0;
627 cfg.pageAddr = portnum;
628 cfg.timeout = 0;
629
630 if ((rc = mpt_config(ioc, &cfg)) != 0)
631 return rc;
632
633 if (hdr.PageLength == 0)
634 return 0;
635
636 data_sz = hdr.PageLength * 4;
637 rc = -ENOMEM;
638 ppage0_alloc = (FCPortPage0_t *) pci_alloc_consistent(ioc->pcidev, data_sz, &page0_dma);
639 if (ppage0_alloc) {
640
641 try_again:
642 memset((u8 *)ppage0_alloc, 0, data_sz);
643 cfg.physAddr = page0_dma;
644 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
645
646 if ((rc = mpt_config(ioc, &cfg)) == 0) {
647 /* save the data */
648 pp0dest = &ioc->fc_port_page0[portnum];
649 copy_sz = min_t(int, sizeof(FCPortPage0_t), data_sz);
650 memcpy(pp0dest, ppage0_alloc, copy_sz);
651
652 /*
653 * Normalize endianness of structure data,
654 * by byte-swapping all > 1 byte fields!
655 */
656 pp0dest->Flags = le32_to_cpu(pp0dest->Flags);
657 pp0dest->PortIdentifier = le32_to_cpu(pp0dest->PortIdentifier);
658 pp0dest->WWNN.Low = le32_to_cpu(pp0dest->WWNN.Low);
659 pp0dest->WWNN.High = le32_to_cpu(pp0dest->WWNN.High);
660 pp0dest->WWPN.Low = le32_to_cpu(pp0dest->WWPN.Low);
661 pp0dest->WWPN.High = le32_to_cpu(pp0dest->WWPN.High);
662 pp0dest->SupportedServiceClass = le32_to_cpu(pp0dest->SupportedServiceClass);
663 pp0dest->SupportedSpeeds = le32_to_cpu(pp0dest->SupportedSpeeds);
664 pp0dest->CurrentSpeed = le32_to_cpu(pp0dest->CurrentSpeed);
665 pp0dest->MaxFrameSize = le32_to_cpu(pp0dest->MaxFrameSize);
666 pp0dest->FabricWWNN.Low = le32_to_cpu(pp0dest->FabricWWNN.Low);
667 pp0dest->FabricWWNN.High = le32_to_cpu(pp0dest->FabricWWNN.High);
668 pp0dest->FabricWWPN.Low = le32_to_cpu(pp0dest->FabricWWPN.Low);
669 pp0dest->FabricWWPN.High = le32_to_cpu(pp0dest->FabricWWPN.High);
670 pp0dest->DiscoveredPortsCount = le32_to_cpu(pp0dest->DiscoveredPortsCount);
671 pp0dest->MaxInitiators = le32_to_cpu(pp0dest->MaxInitiators);
672
673 /*
674 * if still doing discovery,
675 * hang loose a while until finished
676 */
677 if (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) {
678 if (count-- > 0) {
679 msleep(100);
680 goto try_again;
681 }
682 printk(MYIOC_s_INFO_FMT "Firmware discovery not"
683 " complete.\n",
684 ioc->name);
685 }
686 }
687
688 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) ppage0_alloc, page0_dma);
689 }
690
691 return rc;
692 }
693
694 static int
695 mptfc_WriteFcPortPage1(MPT_ADAPTER *ioc, int portnum)
696 {
697 ConfigPageHeader_t hdr;
698 CONFIGPARMS cfg;
699 int rc;
700
701 if (portnum > 1)
702 return -EINVAL;
703
704 if (!(ioc->fc_data.fc_port_page1[portnum].data))
705 return -EINVAL;
706
707 /* get fcport page 1 header */
708 hdr.PageVersion = 0;
709 hdr.PageLength = 0;
710 hdr.PageNumber = 1;
711 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
712 cfg.cfghdr.hdr = &hdr;
713 cfg.physAddr = -1;
714 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
715 cfg.dir = 0;
716 cfg.pageAddr = portnum;
717 cfg.timeout = 0;
718
719 if ((rc = mpt_config(ioc, &cfg)) != 0)
720 return rc;
721
722 if (hdr.PageLength == 0)
723 return -ENODEV;
724
725 if (hdr.PageLength*4 != ioc->fc_data.fc_port_page1[portnum].pg_sz)
726 return -EINVAL;
727
728 cfg.physAddr = ioc->fc_data.fc_port_page1[portnum].dma;
729 cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT;
730 cfg.dir = 1;
731
732 rc = mpt_config(ioc, &cfg);
733
734 return rc;
735 }
736
737 static int
738 mptfc_GetFcPortPage1(MPT_ADAPTER *ioc, int portnum)
739 {
740 ConfigPageHeader_t hdr;
741 CONFIGPARMS cfg;
742 FCPortPage1_t *page1_alloc;
743 dma_addr_t page1_dma;
744 int data_sz;
745 int rc;
746
747 if (portnum > 1)
748 return -EINVAL;
749
750 /* get fcport page 1 header */
751 hdr.PageVersion = 0;
752 hdr.PageLength = 0;
753 hdr.PageNumber = 1;
754 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
755 cfg.cfghdr.hdr = &hdr;
756 cfg.physAddr = -1;
757 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
758 cfg.dir = 0;
759 cfg.pageAddr = portnum;
760 cfg.timeout = 0;
761
762 if ((rc = mpt_config(ioc, &cfg)) != 0)
763 return rc;
764
765 if (hdr.PageLength == 0)
766 return -ENODEV;
767
768 start_over:
769
770 if (ioc->fc_data.fc_port_page1[portnum].data == NULL) {
771 data_sz = hdr.PageLength * 4;
772 if (data_sz < sizeof(FCPortPage1_t))
773 data_sz = sizeof(FCPortPage1_t);
774
775 page1_alloc = (FCPortPage1_t *) pci_alloc_consistent(ioc->pcidev,
776 data_sz,
777 &page1_dma);
778 if (!page1_alloc)
779 return -ENOMEM;
780 }
781 else {
782 page1_alloc = ioc->fc_data.fc_port_page1[portnum].data;
783 page1_dma = ioc->fc_data.fc_port_page1[portnum].dma;
784 data_sz = ioc->fc_data.fc_port_page1[portnum].pg_sz;
785 if (hdr.PageLength * 4 > data_sz) {
786 ioc->fc_data.fc_port_page1[portnum].data = NULL;
787 pci_free_consistent(ioc->pcidev, data_sz, (u8 *)
788 page1_alloc, page1_dma);
789 goto start_over;
790 }
791 }
792
793 memset(page1_alloc,0,data_sz);
794
795 cfg.physAddr = page1_dma;
796 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
797
798 if ((rc = mpt_config(ioc, &cfg)) == 0) {
799 ioc->fc_data.fc_port_page1[portnum].data = page1_alloc;
800 ioc->fc_data.fc_port_page1[portnum].pg_sz = data_sz;
801 ioc->fc_data.fc_port_page1[portnum].dma = page1_dma;
802 }
803 else {
804 ioc->fc_data.fc_port_page1[portnum].data = NULL;
805 pci_free_consistent(ioc->pcidev, data_sz, (u8 *)
806 page1_alloc, page1_dma);
807 }
808
809 return rc;
810 }
811
812 static void
813 mptfc_SetFcPortPage1_defaults(MPT_ADAPTER *ioc)
814 {
815 int ii;
816 FCPortPage1_t *pp1;
817
818 #define MPTFC_FW_DEVICE_TIMEOUT (1)
819 #define MPTFC_FW_IO_PEND_TIMEOUT (1)
820 #define ON_FLAGS (MPI_FCPORTPAGE1_FLAGS_IMMEDIATE_ERROR_REPLY)
821 #define OFF_FLAGS (MPI_FCPORTPAGE1_FLAGS_VERBOSE_RESCAN_EVENTS)
822
823 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) {
824 if (mptfc_GetFcPortPage1(ioc, ii) != 0)
825 continue;
826 pp1 = ioc->fc_data.fc_port_page1[ii].data;
827 if ((pp1->InitiatorDeviceTimeout == MPTFC_FW_DEVICE_TIMEOUT)
828 && (pp1->InitiatorIoPendTimeout == MPTFC_FW_IO_PEND_TIMEOUT)
829 && ((pp1->Flags & ON_FLAGS) == ON_FLAGS)
830 && ((pp1->Flags & OFF_FLAGS) == 0))
831 continue;
832 pp1->InitiatorDeviceTimeout = MPTFC_FW_DEVICE_TIMEOUT;
833 pp1->InitiatorIoPendTimeout = MPTFC_FW_IO_PEND_TIMEOUT;
834 pp1->Flags &= ~OFF_FLAGS;
835 pp1->Flags |= ON_FLAGS;
836 mptfc_WriteFcPortPage1(ioc, ii);
837 }
838 }
839
840
841 static void
842 mptfc_init_host_attr(MPT_ADAPTER *ioc,int portnum)
843 {
844 unsigned class = 0, cos = 0;
845
846 /* don't know what to do as only one scsi (fc) host was allocated */
847 if (portnum != 0)
848 return;
849
850 class = ioc->fc_port_page0[portnum].SupportedServiceClass;
851 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_1)
852 cos |= FC_COS_CLASS1;
853 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_2)
854 cos |= FC_COS_CLASS2;
855 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_3)
856 cos |= FC_COS_CLASS3;
857
858 fc_host_node_name(ioc->sh) =
859 (u64)ioc->fc_port_page0[portnum].WWNN.High << 32
860 | (u64)ioc->fc_port_page0[portnum].WWNN.Low;
861
862 fc_host_port_name(ioc->sh) =
863 (u64)ioc->fc_port_page0[portnum].WWPN.High << 32
864 | (u64)ioc->fc_port_page0[portnum].WWPN.Low;
865
866 fc_host_port_id(ioc->sh) = ioc->fc_port_page0[portnum].PortIdentifier;
867
868 fc_host_supported_classes(ioc->sh) = cos;
869
870 fc_host_tgtid_bind_type(ioc->sh) = FC_TGTID_BIND_BY_WWPN;
871 }
872
873 static void
874 mptfc_setup_reset(void *arg)
875 {
876 MPT_ADAPTER *ioc = (MPT_ADAPTER *)arg;
877 u64 pn;
878 struct mptfc_rport_info *ri;
879
880 /* reset about to happen, delete (block) all rports */
881 list_for_each_entry(ri, &ioc->fc_rports, list) {
882 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) {
883 ri->flags &= ~MPT_RPORT_INFO_FLAGS_REGISTERED;
884 fc_remote_port_delete(ri->rport); /* won't sleep */
885 ri->rport = NULL;
886
887 pn = (u64)ri->pg0.WWPN.High << 32 |
888 (u64)ri->pg0.WWPN.Low;
889 dfcprintk ((MYIOC_s_INFO_FMT
890 "mptfc_setup_reset.%d: %llx deleted\n",
891 ioc->name,
892 ioc->sh->host_no,
893 (unsigned long long)pn));
894 }
895 }
896 }
897
898 static void
899 mptfc_rescan_devices(void *arg)
900 {
901 MPT_ADAPTER *ioc = (MPT_ADAPTER *)arg;
902 int ii;
903 int work_to_do;
904 u64 pn;
905 unsigned long flags;
906 struct mptfc_rport_info *ri;
907
908 do {
909 /* start by tagging all ports as missing */
910 list_for_each_entry(ri, &ioc->fc_rports, list) {
911 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) {
912 ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING;
913 }
914 }
915
916 /*
917 * now rescan devices known to adapter,
918 * will reregister existing rports
919 */
920 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
921 (void) mptfc_GetFcPortPage0(ioc, ii);
922 mptfc_init_host_attr(ioc,ii); /* refresh */
923 mptfc_GetFcDevPage0(ioc,ii,mptfc_register_dev);
924 }
925
926 /* delete devices still missing */
927 list_for_each_entry(ri, &ioc->fc_rports, list) {
928 /* if newly missing, delete it */
929 if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) {
930
931 ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED|
932 MPT_RPORT_INFO_FLAGS_MISSING);
933 fc_remote_port_delete(ri->rport); /* won't sleep */
934 ri->rport = NULL;
935
936 pn = (u64)ri->pg0.WWPN.High << 32 |
937 (u64)ri->pg0.WWPN.Low;
938 dfcprintk ((MYIOC_s_INFO_FMT
939 "mptfc_rescan.%d: %llx deleted\n",
940 ioc->name,
941 ioc->sh->host_no,
942 (unsigned long long)pn));
943 }
944 }
945
946 /*
947 * allow multiple passes as target state
948 * might have changed during scan
949 */
950 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
951 if (ioc->fc_rescan_work_count > 2) /* only need one more */
952 ioc->fc_rescan_work_count = 2;
953 work_to_do = --ioc->fc_rescan_work_count;
954 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
955 } while (work_to_do);
956 }
957
958 static int
959 mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id)
960 {
961 struct Scsi_Host *sh;
962 MPT_SCSI_HOST *hd;
963 MPT_ADAPTER *ioc;
964 unsigned long flags;
965 int ii;
966 int numSGE = 0;
967 int scale;
968 int ioc_cap;
969 int error=0;
970 int r;
971
972 if ((r = mpt_attach(pdev,id)) != 0)
973 return r;
974
975 ioc = pci_get_drvdata(pdev);
976 ioc->DoneCtx = mptfcDoneCtx;
977 ioc->TaskCtx = mptfcTaskCtx;
978 ioc->InternalCtx = mptfcInternalCtx;
979
980 /* Added sanity check on readiness of the MPT adapter.
981 */
982 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) {
983 printk(MYIOC_s_WARN_FMT
984 "Skipping because it's not operational!\n",
985 ioc->name);
986 error = -ENODEV;
987 goto out_mptfc_probe;
988 }
989
990 if (!ioc->active) {
991 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n",
992 ioc->name);
993 error = -ENODEV;
994 goto out_mptfc_probe;
995 }
996
997 /* Sanity check - ensure at least 1 port is INITIATOR capable
998 */
999 ioc_cap = 0;
1000 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1001 if (ioc->pfacts[ii].ProtocolFlags &
1002 MPI_PORTFACTS_PROTOCOL_INITIATOR)
1003 ioc_cap ++;
1004 }
1005
1006 if (!ioc_cap) {
1007 printk(MYIOC_s_WARN_FMT
1008 "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n",
1009 ioc->name, ioc);
1010 return -ENODEV;
1011 }
1012
1013 sh = scsi_host_alloc(&mptfc_driver_template, sizeof(MPT_SCSI_HOST));
1014
1015 if (!sh) {
1016 printk(MYIOC_s_WARN_FMT
1017 "Unable to register controller with SCSI subsystem\n",
1018 ioc->name);
1019 error = -1;
1020 goto out_mptfc_probe;
1021 }
1022
1023 spin_lock_init(&ioc->fc_rescan_work_lock);
1024 INIT_WORK(&ioc->fc_rescan_work, mptfc_rescan_devices,(void *)ioc);
1025 INIT_WORK(&ioc->fc_setup_reset_work, mptfc_setup_reset, (void *)ioc);
1026
1027 spin_lock_irqsave(&ioc->FreeQlock, flags);
1028
1029 /* Attach the SCSI Host to the IOC structure
1030 */
1031 ioc->sh = sh;
1032
1033 sh->io_port = 0;
1034 sh->n_io_port = 0;
1035 sh->irq = 0;
1036
1037 /* set 16 byte cdb's */
1038 sh->max_cmd_len = 16;
1039
1040 sh->max_id = MPT_MAX_FC_DEVICES<256 ? MPT_MAX_FC_DEVICES : 255;
1041
1042 sh->max_lun = MPT_LAST_LUN + 1;
1043 sh->max_channel = 0;
1044 sh->this_id = ioc->pfacts[0].PortSCSIID;
1045
1046 /* Required entry.
1047 */
1048 sh->unique_id = ioc->id;
1049
1050 /* Verify that we won't exceed the maximum
1051 * number of chain buffers
1052 * We can optimize: ZZ = req_sz/sizeof(SGE)
1053 * For 32bit SGE's:
1054 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ
1055 * + (req_sz - 64)/sizeof(SGE)
1056 * A slightly different algorithm is required for
1057 * 64bit SGEs.
1058 */
1059 scale = ioc->req_sz/(sizeof(dma_addr_t) + sizeof(u32));
1060 if (sizeof(dma_addr_t) == sizeof(u64)) {
1061 numSGE = (scale - 1) *
1062 (ioc->facts.MaxChainDepth-1) + scale +
1063 (ioc->req_sz - 60) / (sizeof(dma_addr_t) +
1064 sizeof(u32));
1065 } else {
1066 numSGE = 1 + (scale - 1) *
1067 (ioc->facts.MaxChainDepth-1) + scale +
1068 (ioc->req_sz - 64) / (sizeof(dma_addr_t) +
1069 sizeof(u32));
1070 }
1071
1072 if (numSGE < sh->sg_tablesize) {
1073 /* Reset this value */
1074 dprintk((MYIOC_s_INFO_FMT
1075 "Resetting sg_tablesize to %d from %d\n",
1076 ioc->name, numSGE, sh->sg_tablesize));
1077 sh->sg_tablesize = numSGE;
1078 }
1079
1080 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1081
1082 hd = (MPT_SCSI_HOST *) sh->hostdata;
1083 hd->ioc = ioc;
1084
1085 /* SCSI needs scsi_cmnd lookup table!
1086 * (with size equal to req_depth*PtrSz!)
1087 */
1088 hd->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC);
1089 if (!hd->ScsiLookup) {
1090 error = -ENOMEM;
1091 goto out_mptfc_probe;
1092 }
1093
1094 dprintk((MYIOC_s_INFO_FMT "ScsiLookup @ %p\n",
1095 ioc->name, hd->ScsiLookup));
1096
1097 /* Allocate memory for the device structures.
1098 * A non-Null pointer at an offset
1099 * indicates a device exists.
1100 * max_id = 1 + maximum id (hosts.h)
1101 */
1102 hd->Targets = kcalloc(sh->max_id, sizeof(void *), GFP_ATOMIC);
1103 if (!hd->Targets) {
1104 error = -ENOMEM;
1105 goto out_mptfc_probe;
1106 }
1107
1108 dprintk((KERN_INFO " vdev @ %p\n", hd->Targets));
1109
1110 /* Clear the TM flags
1111 */
1112 hd->tmPending = 0;
1113 hd->tmState = TM_STATE_NONE;
1114 hd->resetPending = 0;
1115 hd->abortSCpnt = NULL;
1116
1117 /* Clear the pointer used to store
1118 * single-threaded commands, i.e., those
1119 * issued during a bus scan, dv and
1120 * configuration pages.
1121 */
1122 hd->cmdPtr = NULL;
1123
1124 /* Initialize this SCSI Hosts' timers
1125 * To use, set the timer expires field
1126 * and add_timer
1127 */
1128 init_timer(&hd->timer);
1129 hd->timer.data = (unsigned long) hd;
1130 hd->timer.function = mptscsih_timer_expired;
1131
1132 hd->mpt_pq_filter = mpt_pq_filter;
1133
1134 ddvprintk((MYIOC_s_INFO_FMT
1135 "mpt_pq_filter %x\n",
1136 ioc->name,
1137 mpt_pq_filter));
1138
1139 init_waitqueue_head(&hd->scandv_waitq);
1140 hd->scandv_wait_done = 0;
1141 hd->last_queue_full = 0;
1142
1143 sh->transportt = mptfc_transport_template;
1144 error = scsi_add_host (sh, &ioc->pcidev->dev);
1145 if(error) {
1146 dprintk((KERN_ERR MYNAM
1147 "scsi_add_host failed\n"));
1148 goto out_mptfc_probe;
1149 }
1150
1151 /* initialize workqueue */
1152
1153 snprintf(ioc->fc_rescan_work_q_name, KOBJ_NAME_LEN, "mptfc_wq_%d",
1154 sh->host_no);
1155 ioc->fc_rescan_work_q =
1156 create_singlethread_workqueue(ioc->fc_rescan_work_q_name);
1157 if (!ioc->fc_rescan_work_q)
1158 goto out_mptfc_probe;
1159
1160 /*
1161 * Pre-fetch FC port WWN and stuff...
1162 * (FCPortPage0_t stuff)
1163 */
1164 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1165 (void) mptfc_GetFcPortPage0(ioc, ii);
1166 }
1167 mptfc_SetFcPortPage1_defaults(ioc);
1168
1169 /*
1170 * scan for rports -
1171 * by doing it via the workqueue, some locking is eliminated
1172 */
1173
1174 ioc->fc_rescan_work_count = 1;
1175 queue_work(ioc->fc_rescan_work_q, &ioc->fc_rescan_work);
1176 flush_workqueue(ioc->fc_rescan_work_q);
1177
1178 return 0;
1179
1180 out_mptfc_probe:
1181
1182 mptscsih_remove(pdev);
1183 return error;
1184 }
1185
1186 static struct pci_driver mptfc_driver = {
1187 .name = "mptfc",
1188 .id_table = mptfc_pci_table,
1189 .probe = mptfc_probe,
1190 .remove = __devexit_p(mptfc_remove),
1191 .shutdown = mptscsih_shutdown,
1192 #ifdef CONFIG_PM
1193 .suspend = mptscsih_suspend,
1194 .resume = mptscsih_resume,
1195 #endif
1196 };
1197
1198 static int
1199 mptfc_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
1200 {
1201 MPT_SCSI_HOST *hd;
1202 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
1203 unsigned long flags;
1204 int rc=1;
1205
1206 devtverboseprintk((MYIOC_s_INFO_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n",
1207 ioc->name, event));
1208
1209 if (ioc->sh == NULL ||
1210 ((hd = (MPT_SCSI_HOST *)ioc->sh->hostdata) == NULL))
1211 return 1;
1212
1213 switch (event) {
1214 case MPI_EVENT_RESCAN:
1215 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1216 if (ioc->fc_rescan_work_q) {
1217 if (ioc->fc_rescan_work_count++ == 0) {
1218 queue_work(ioc->fc_rescan_work_q,
1219 &ioc->fc_rescan_work);
1220 }
1221 }
1222 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1223 break;
1224 default:
1225 rc = mptscsih_event_process(ioc,pEvReply);
1226 break;
1227 }
1228 return rc;
1229 }
1230
1231 static int
1232 mptfc_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
1233 {
1234 int rc;
1235 unsigned long flags;
1236
1237 rc = mptscsih_ioc_reset(ioc,reset_phase);
1238 if (rc == 0)
1239 return rc;
1240
1241
1242 dtmprintk((KERN_WARNING MYNAM
1243 ": IOC %s_reset routed to FC host driver!\n",
1244 reset_phase==MPT_IOC_SETUP_RESET ? "setup" : (
1245 reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post")));
1246
1247 if (reset_phase == MPT_IOC_SETUP_RESET) {
1248 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1249 if (ioc->fc_rescan_work_q) {
1250 queue_work(ioc->fc_rescan_work_q,
1251 &ioc->fc_setup_reset_work);
1252 }
1253 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1254 }
1255
1256 else if (reset_phase == MPT_IOC_PRE_RESET) {
1257 }
1258
1259 else { /* MPT_IOC_POST_RESET */
1260 mptfc_SetFcPortPage1_defaults(ioc);
1261 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1262 if (ioc->fc_rescan_work_q) {
1263 if (ioc->fc_rescan_work_count++ == 0) {
1264 queue_work(ioc->fc_rescan_work_q,
1265 &ioc->fc_rescan_work);
1266 }
1267 }
1268 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1269 }
1270 return 1;
1271 }
1272
1273 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1274 /**
1275 * mptfc_init - Register MPT adapter(s) as SCSI host(s) with
1276 * linux scsi mid-layer.
1277 *
1278 * Returns 0 for success, non-zero for failure.
1279 */
1280 static int __init
1281 mptfc_init(void)
1282 {
1283 int error;
1284
1285 show_mptmod_ver(my_NAME, my_VERSION);
1286
1287 /* sanity check module parameters */
1288 if (mptfc_dev_loss_tmo <= 0)
1289 mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO;
1290
1291 mptfc_transport_template =
1292 fc_attach_transport(&mptfc_transport_functions);
1293
1294 if (!mptfc_transport_template)
1295 return -ENODEV;
1296
1297 mptfcDoneCtx = mpt_register(mptscsih_io_done, MPTFC_DRIVER);
1298 mptfcTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTFC_DRIVER);
1299 mptfcInternalCtx = mpt_register(mptscsih_scandv_complete, MPTFC_DRIVER);
1300
1301 if (mpt_event_register(mptfcDoneCtx, mptfc_event_process) == 0) {
1302 devtverboseprintk((KERN_INFO MYNAM
1303 ": Registered for IOC event notifications\n"));
1304 }
1305
1306 if (mpt_reset_register(mptfcDoneCtx, mptfc_ioc_reset) == 0) {
1307 dprintk((KERN_INFO MYNAM
1308 ": Registered for IOC reset notifications\n"));
1309 }
1310
1311 error = pci_register_driver(&mptfc_driver);
1312 if (error)
1313 fc_release_transport(mptfc_transport_template);
1314
1315 return error;
1316 }
1317
1318 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1319 /**
1320 * mptfc_remove - Removed fc infrastructure for devices
1321 * @pdev: Pointer to pci_dev structure
1322 *
1323 */
1324 static void __devexit
1325 mptfc_remove(struct pci_dev *pdev)
1326 {
1327 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1328 struct mptfc_rport_info *p, *n;
1329 struct workqueue_struct *work_q;
1330 unsigned long flags;
1331 int ii;
1332
1333 /* destroy workqueue */
1334 if ((work_q=ioc->fc_rescan_work_q)) {
1335 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1336 ioc->fc_rescan_work_q = NULL;
1337 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1338 destroy_workqueue(work_q);
1339 }
1340
1341 fc_remove_host(ioc->sh);
1342
1343 list_for_each_entry_safe(p, n, &ioc->fc_rports, list) {
1344 list_del(&p->list);
1345 kfree(p);
1346 }
1347
1348 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) {
1349 if (ioc->fc_data.fc_port_page1[ii].data) {
1350 pci_free_consistent(ioc->pcidev,
1351 ioc->fc_data.fc_port_page1[ii].pg_sz,
1352 (u8 *) ioc->fc_data.fc_port_page1[ii].data,
1353 ioc->fc_data.fc_port_page1[ii].dma);
1354 ioc->fc_data.fc_port_page1[ii].data = NULL;
1355 }
1356 }
1357
1358 mptscsih_remove(pdev);
1359 }
1360
1361 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1362 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1363 /**
1364 * mptfc_exit - Unregisters MPT adapter(s)
1365 *
1366 */
1367 static void __exit
1368 mptfc_exit(void)
1369 {
1370 pci_unregister_driver(&mptfc_driver);
1371 fc_release_transport(mptfc_transport_template);
1372
1373 mpt_reset_deregister(mptfcDoneCtx);
1374 dprintk((KERN_INFO MYNAM
1375 ": Deregistered for IOC reset notifications\n"));
1376
1377 mpt_event_deregister(mptfcDoneCtx);
1378 dprintk((KERN_INFO MYNAM
1379 ": Deregistered for IOC event notifications\n"));
1380
1381 mpt_deregister(mptfcInternalCtx);
1382 mpt_deregister(mptfcTaskCtx);
1383 mpt_deregister(mptfcDoneCtx);
1384 }
1385
1386 module_init(mptfc_init);
1387 module_exit(mptfc_exit);
Linux kernel - Deliverables
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