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Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6
[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 #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 static int mptfcDoneCtx = -1;
89 static int mptfcTaskCtx = -1;
90 static int mptfcInternalCtx = -1; /* Used only for internal commands */
91
92 static int mptfc_target_alloc(struct scsi_target *starget);
93 static int mptfc_slave_alloc(struct scsi_device *sdev);
94 static int mptfc_qcmd(struct scsi_cmnd *SCpnt,
95 void (*done)(struct scsi_cmnd *));
96 static void mptfc_target_destroy(struct scsi_target *starget);
97 static void mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout);
98 static void __devexit mptfc_remove(struct pci_dev *pdev);
99
100 static struct scsi_host_template mptfc_driver_template = {
101 .module = THIS_MODULE,
102 .proc_name = "mptfc",
103 .proc_info = mptscsih_proc_info,
104 .name = "MPT FC Host",
105 .info = mptscsih_info,
106 .queuecommand = mptfc_qcmd,
107 .target_alloc = mptfc_target_alloc,
108 .slave_alloc = mptfc_slave_alloc,
109 .slave_configure = mptscsih_slave_configure,
110 .target_destroy = mptfc_target_destroy,
111 .slave_destroy = mptscsih_slave_destroy,
112 .change_queue_depth = mptscsih_change_queue_depth,
113 .eh_abort_handler = mptscsih_abort,
114 .eh_device_reset_handler = mptscsih_dev_reset,
115 .eh_bus_reset_handler = mptscsih_bus_reset,
116 .eh_host_reset_handler = mptscsih_host_reset,
117 .bios_param = mptscsih_bios_param,
118 .can_queue = MPT_FC_CAN_QUEUE,
119 .this_id = -1,
120 .sg_tablesize = MPT_SCSI_SG_DEPTH,
121 .max_sectors = 8192,
122 .cmd_per_lun = 7,
123 .use_clustering = ENABLE_CLUSTERING,
124 };
125
126 /****************************************************************************
127 * Supported hardware
128 */
129
130 static struct pci_device_id mptfc_pci_table[] = {
131 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC909,
132 PCI_ANY_ID, PCI_ANY_ID },
133 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC919,
134 PCI_ANY_ID, PCI_ANY_ID },
135 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC929,
136 PCI_ANY_ID, PCI_ANY_ID },
137 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC919X,
138 PCI_ANY_ID, PCI_ANY_ID },
139 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC929X,
140 PCI_ANY_ID, PCI_ANY_ID },
141 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC939X,
142 PCI_ANY_ID, PCI_ANY_ID },
143 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC949X,
144 PCI_ANY_ID, PCI_ANY_ID },
145 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC949E,
146 PCI_ANY_ID, PCI_ANY_ID },
147 {0} /* Terminating entry */
148 };
149 MODULE_DEVICE_TABLE(pci, mptfc_pci_table);
150
151 static struct scsi_transport_template *mptfc_transport_template = NULL;
152
153 static struct fc_function_template mptfc_transport_functions = {
154 .dd_fcrport_size = 8,
155 .show_host_node_name = 1,
156 .show_host_port_name = 1,
157 .show_host_supported_classes = 1,
158 .show_host_port_id = 1,
159 .show_rport_supported_classes = 1,
160 .show_starget_node_name = 1,
161 .show_starget_port_name = 1,
162 .show_starget_port_id = 1,
163 .set_rport_dev_loss_tmo = mptfc_set_rport_loss_tmo,
164 .show_rport_dev_loss_tmo = 1,
165 .show_host_supported_speeds = 1,
166 .show_host_maxframe_size = 1,
167 .show_host_speed = 1,
168 .show_host_fabric_name = 1,
169 .show_host_port_type = 1,
170 .show_host_port_state = 1,
171 .show_host_symbolic_name = 1,
172 };
173
174 static void
175 mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
176 {
177 if (timeout > 0)
178 rport->dev_loss_tmo = timeout;
179 else
180 rport->dev_loss_tmo = mptfc_dev_loss_tmo;
181 }
182
183 static int
184 mptfc_FcDevPage0_cmp_func(const void *a, const void *b)
185 {
186 FCDevicePage0_t **aa = (FCDevicePage0_t **)a;
187 FCDevicePage0_t **bb = (FCDevicePage0_t **)b;
188
189 if ((*aa)->CurrentBus == (*bb)->CurrentBus) {
190 if ((*aa)->CurrentTargetID == (*bb)->CurrentTargetID)
191 return 0;
192 if ((*aa)->CurrentTargetID < (*bb)->CurrentTargetID)
193 return -1;
194 return 1;
195 }
196 if ((*aa)->CurrentBus < (*bb)->CurrentBus)
197 return -1;
198 return 1;
199 }
200
201 static int
202 mptfc_GetFcDevPage0(MPT_ADAPTER *ioc, int ioc_port,
203 void(*func)(MPT_ADAPTER *ioc,int channel, FCDevicePage0_t *arg))
204 {
205 ConfigPageHeader_t hdr;
206 CONFIGPARMS cfg;
207 FCDevicePage0_t *ppage0_alloc, *fc;
208 dma_addr_t page0_dma;
209 int data_sz;
210 int ii;
211
212 FCDevicePage0_t *p0_array=NULL, *p_p0;
213 FCDevicePage0_t **pp0_array=NULL, **p_pp0;
214
215 int rc = -ENOMEM;
216 U32 port_id = 0xffffff;
217 int num_targ = 0;
218 int max_bus = ioc->facts.MaxBuses;
219 int max_targ = ioc->facts.MaxDevices;
220
221 if (max_bus == 0 || max_targ == 0)
222 goto out;
223
224 data_sz = sizeof(FCDevicePage0_t) * max_bus * max_targ;
225 p_p0 = p0_array = kzalloc(data_sz, GFP_KERNEL);
226 if (!p0_array)
227 goto out;
228
229 data_sz = sizeof(FCDevicePage0_t *) * max_bus * max_targ;
230 p_pp0 = pp0_array = kzalloc(data_sz, GFP_KERNEL);
231 if (!pp0_array)
232 goto out;
233
234 do {
235 /* Get FC Device Page 0 header */
236 hdr.PageVersion = 0;
237 hdr.PageLength = 0;
238 hdr.PageNumber = 0;
239 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_DEVICE;
240 cfg.cfghdr.hdr = &hdr;
241 cfg.physAddr = -1;
242 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
243 cfg.dir = 0;
244 cfg.pageAddr = port_id;
245 cfg.timeout = 0;
246
247 if ((rc = mpt_config(ioc, &cfg)) != 0)
248 break;
249
250 if (hdr.PageLength <= 0)
251 break;
252
253 data_sz = hdr.PageLength * 4;
254 ppage0_alloc = pci_alloc_consistent(ioc->pcidev, data_sz,
255 &page0_dma);
256 rc = -ENOMEM;
257 if (!ppage0_alloc)
258 break;
259
260 cfg.physAddr = page0_dma;
261 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
262
263 if ((rc = mpt_config(ioc, &cfg)) == 0) {
264 ppage0_alloc->PortIdentifier =
265 le32_to_cpu(ppage0_alloc->PortIdentifier);
266
267 ppage0_alloc->WWNN.Low =
268 le32_to_cpu(ppage0_alloc->WWNN.Low);
269
270 ppage0_alloc->WWNN.High =
271 le32_to_cpu(ppage0_alloc->WWNN.High);
272
273 ppage0_alloc->WWPN.Low =
274 le32_to_cpu(ppage0_alloc->WWPN.Low);
275
276 ppage0_alloc->WWPN.High =
277 le32_to_cpu(ppage0_alloc->WWPN.High);
278
279 ppage0_alloc->BBCredit =
280 le16_to_cpu(ppage0_alloc->BBCredit);
281
282 ppage0_alloc->MaxRxFrameSize =
283 le16_to_cpu(ppage0_alloc->MaxRxFrameSize);
284
285 port_id = ppage0_alloc->PortIdentifier;
286 num_targ++;
287 *p_p0 = *ppage0_alloc; /* save data */
288 *p_pp0++ = p_p0++; /* save addr */
289 }
290 pci_free_consistent(ioc->pcidev, data_sz,
291 (u8 *) ppage0_alloc, page0_dma);
292 if (rc != 0)
293 break;
294
295 } while (port_id <= 0xff0000);
296
297 if (num_targ) {
298 /* sort array */
299 if (num_targ > 1)
300 sort (pp0_array, num_targ, sizeof(FCDevicePage0_t *),
301 mptfc_FcDevPage0_cmp_func, NULL);
302 /* call caller's func for each targ */
303 for (ii = 0; ii < num_targ; ii++) {
304 fc = *(pp0_array+ii);
305 func(ioc, ioc_port, fc);
306 }
307 }
308
309 out:
310 kfree(pp0_array);
311 kfree(p0_array);
312 return rc;
313 }
314
315 static int
316 mptfc_generate_rport_ids(FCDevicePage0_t *pg0, struct fc_rport_identifiers *rid)
317 {
318 /* not currently usable */
319 if (pg0->Flags & (MPI_FC_DEVICE_PAGE0_FLAGS_PLOGI_INVALID |
320 MPI_FC_DEVICE_PAGE0_FLAGS_PRLI_INVALID))
321 return -1;
322
323 if (!(pg0->Flags & MPI_FC_DEVICE_PAGE0_FLAGS_TARGETID_BUS_VALID))
324 return -1;
325
326 if (!(pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_TARGET))
327 return -1;
328
329 /*
330 * board data structure already normalized to platform endianness
331 * shifted to avoid unaligned access on 64 bit architecture
332 */
333 rid->node_name = ((u64)pg0->WWNN.High) << 32 | (u64)pg0->WWNN.Low;
334 rid->port_name = ((u64)pg0->WWPN.High) << 32 | (u64)pg0->WWPN.Low;
335 rid->port_id = pg0->PortIdentifier;
336 rid->roles = FC_RPORT_ROLE_UNKNOWN;
337
338 return 0;
339 }
340
341 static void
342 mptfc_register_dev(MPT_ADAPTER *ioc, int channel, FCDevicePage0_t *pg0)
343 {
344 struct fc_rport_identifiers rport_ids;
345 struct fc_rport *rport;
346 struct mptfc_rport_info *ri;
347 int new_ri = 1;
348 u64 pn, nn;
349 VirtTarget *vtarget;
350 u32 roles = FC_RPORT_ROLE_UNKNOWN;
351
352 if (mptfc_generate_rport_ids(pg0, &rport_ids) < 0)
353 return;
354
355 roles |= FC_RPORT_ROLE_FCP_TARGET;
356 if (pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_INITIATOR)
357 roles |= FC_RPORT_ROLE_FCP_INITIATOR;
358
359 /* scan list looking for a match */
360 list_for_each_entry(ri, &ioc->fc_rports, list) {
361 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
362 if (pn == rport_ids.port_name) { /* match */
363 list_move_tail(&ri->list, &ioc->fc_rports);
364 new_ri = 0;
365 break;
366 }
367 }
368 if (new_ri) { /* allocate one */
369 ri = kzalloc(sizeof(struct mptfc_rport_info), GFP_KERNEL);
370 if (!ri)
371 return;
372 list_add_tail(&ri->list, &ioc->fc_rports);
373 }
374
375 ri->pg0 = *pg0; /* add/update pg0 data */
376 ri->flags &= ~MPT_RPORT_INFO_FLAGS_MISSING;
377
378 /* MPT_RPORT_INFO_FLAGS_REGISTERED - rport not previously deleted */
379 if (!(ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED)) {
380 ri->flags |= MPT_RPORT_INFO_FLAGS_REGISTERED;
381 rport = fc_remote_port_add(ioc->sh, channel, &rport_ids);
382 if (rport) {
383 ri->rport = rport;
384 if (new_ri) /* may have been reset by user */
385 rport->dev_loss_tmo = mptfc_dev_loss_tmo;
386 /*
387 * if already mapped, remap here. If not mapped,
388 * target_alloc will allocate vtarget and map,
389 * slave_alloc will fill in vdev from vtarget.
390 */
391 if (ri->starget) {
392 vtarget = ri->starget->hostdata;
393 if (vtarget) {
394 vtarget->target_id = pg0->CurrentTargetID;
395 vtarget->bus_id = pg0->CurrentBus;
396 }
397 }
398 *((struct mptfc_rport_info **)rport->dd_data) = ri;
399 /* scan will be scheduled once rport becomes a target */
400 fc_remote_port_rolechg(rport,roles);
401
402 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
403 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low;
404 dfcprintk ((MYIOC_s_INFO_FMT
405 "mptfc_reg_dev.%d: %x, %llx / %llx, tid %d, "
406 "rport tid %d, tmo %d\n",
407 ioc->name,
408 ioc->sh->host_no,
409 pg0->PortIdentifier,
410 (unsigned long long)nn,
411 (unsigned long long)pn,
412 pg0->CurrentTargetID,
413 ri->rport->scsi_target_id,
414 ri->rport->dev_loss_tmo));
415 } else {
416 list_del(&ri->list);
417 kfree(ri);
418 ri = NULL;
419 }
420 }
421 }
422
423 /*
424 * OS entry point to allow for host driver to free allocated memory
425 * Called if no device present or device being unloaded
426 */
427 static void
428 mptfc_target_destroy(struct scsi_target *starget)
429 {
430 struct fc_rport *rport;
431 struct mptfc_rport_info *ri;
432
433 rport = starget_to_rport(starget);
434 if (rport) {
435 ri = *((struct mptfc_rport_info **)rport->dd_data);
436 if (ri) /* better be! */
437 ri->starget = NULL;
438 }
439 if (starget->hostdata)
440 kfree(starget->hostdata);
441 starget->hostdata = NULL;
442 }
443
444 /*
445 * OS entry point to allow host driver to alloc memory
446 * for each scsi target. Called once per device the bus scan.
447 * Return non-zero if allocation fails.
448 */
449 static int
450 mptfc_target_alloc(struct scsi_target *starget)
451 {
452 VirtTarget *vtarget;
453 struct fc_rport *rport;
454 struct mptfc_rport_info *ri;
455 int rc;
456
457 vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL);
458 if (!vtarget)
459 return -ENOMEM;
460 starget->hostdata = vtarget;
461
462 rc = -ENODEV;
463 rport = starget_to_rport(starget);
464 if (rport) {
465 ri = *((struct mptfc_rport_info **)rport->dd_data);
466 if (ri) { /* better be! */
467 vtarget->target_id = ri->pg0.CurrentTargetID;
468 vtarget->bus_id = ri->pg0.CurrentBus;
469 ri->starget = starget;
470 rc = 0;
471 }
472 }
473 if (rc != 0) {
474 kfree(vtarget);
475 starget->hostdata = NULL;
476 }
477
478 return rc;
479 }
480
481 /*
482 * OS entry point to allow host driver to alloc memory
483 * for each scsi device. Called once per device the bus scan.
484 * Return non-zero if allocation fails.
485 * Init memory once per LUN.
486 */
487 static int
488 mptfc_slave_alloc(struct scsi_device *sdev)
489 {
490 MPT_SCSI_HOST *hd;
491 VirtTarget *vtarget;
492 VirtDevice *vdev;
493 struct scsi_target *starget;
494 struct fc_rport *rport;
495
496
497 starget = scsi_target(sdev);
498 rport = starget_to_rport(starget);
499
500 if (!rport || fc_remote_port_chkready(rport))
501 return -ENXIO;
502
503 hd = (MPT_SCSI_HOST *)sdev->host->hostdata;
504
505 vdev = kzalloc(sizeof(VirtDevice), GFP_KERNEL);
506 if (!vdev) {
507 printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n",
508 hd->ioc->name, sizeof(VirtDevice));
509 return -ENOMEM;
510 }
511
512
513 sdev->hostdata = vdev;
514 vtarget = starget->hostdata;
515
516 if (vtarget->num_luns == 0) {
517 vtarget->ioc_id = hd->ioc->id;
518 vtarget->tflags = MPT_TARGET_FLAGS_Q_YES;
519 hd->Targets[sdev->id] = vtarget;
520 }
521
522 vdev->vtarget = vtarget;
523 vdev->lun = sdev->lun;
524
525 vtarget->num_luns++;
526
527
528 #ifdef DMPT_DEBUG_FC
529 {
530 u64 nn, pn;
531 struct mptfc_rport_info *ri;
532 ri = *((struct mptfc_rport_info **)rport->dd_data);
533 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
534 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low;
535 dfcprintk ((MYIOC_s_INFO_FMT
536 "mptfc_slv_alloc.%d: num_luns %d, sdev.id %d, "
537 "CurrentTargetID %d, %x %llx %llx\n",
538 hd->ioc->name,
539 sdev->host->host_no,
540 vtarget->num_luns,
541 sdev->id, ri->pg0.CurrentTargetID,
542 ri->pg0.PortIdentifier,
543 (unsigned long long)pn,
544 (unsigned long long)nn));
545 }
546 #endif
547
548 return 0;
549 }
550
551 static int
552 mptfc_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
553 {
554 struct mptfc_rport_info *ri;
555 struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device));
556 int err;
557
558 err = fc_remote_port_chkready(rport);
559 if (unlikely(err)) {
560 SCpnt->result = err;
561 done(SCpnt);
562 return 0;
563 }
564
565 /* dd_data is null until finished adding target */
566 ri = *((struct mptfc_rport_info **)rport->dd_data);
567 if (unlikely(!ri)) {
568 dfcprintk ((MYIOC_s_INFO_FMT
569 "mptfc_qcmd.%d: %d:%d, dd_data is null.\n",
570 ((MPT_SCSI_HOST *) SCpnt->device->host->hostdata)->ioc->name,
571 ((MPT_SCSI_HOST *) SCpnt->device->host->hostdata)->ioc->sh->host_no,
572 SCpnt->device->id,SCpnt->device->lun));
573 SCpnt->result = DID_IMM_RETRY << 16;
574 done(SCpnt);
575 return 0;
576 }
577
578 err = mptscsih_qcmd(SCpnt,done);
579 #ifdef DMPT_DEBUG_FC
580 if (unlikely(err)) {
581 dfcprintk ((MYIOC_s_INFO_FMT
582 "mptfc_qcmd.%d: %d:%d, mptscsih_qcmd returns non-zero, (%x).\n",
583 ((MPT_SCSI_HOST *) SCpnt->device->host->hostdata)->ioc->name,
584 ((MPT_SCSI_HOST *) SCpnt->device->host->hostdata)->ioc->sh->host_no,
585 SCpnt->device->id,SCpnt->device->lun,err));
586 }
587 #endif
588 return err;
589 }
590
591 /*
592 * mptfc_GetFcPortPage0 - Fetch FCPort config Page0.
593 * @ioc: Pointer to MPT_ADAPTER structure
594 * @portnum: IOC Port number
595 *
596 * Return: 0 for success
597 * -ENOMEM if no memory available
598 * -EPERM if not allowed due to ISR context
599 * -EAGAIN if no msg frames currently available
600 * -EFAULT for non-successful reply or no reply (timeout)
601 * -EINVAL portnum arg out of range (hardwired to two elements)
602 */
603 static int
604 mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum)
605 {
606 ConfigPageHeader_t hdr;
607 CONFIGPARMS cfg;
608 FCPortPage0_t *ppage0_alloc;
609 FCPortPage0_t *pp0dest;
610 dma_addr_t page0_dma;
611 int data_sz;
612 int copy_sz;
613 int rc;
614 int count = 400;
615
616 if (portnum > 1)
617 return -EINVAL;
618
619 /* Get FCPort Page 0 header */
620 hdr.PageVersion = 0;
621 hdr.PageLength = 0;
622 hdr.PageNumber = 0;
623 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
624 cfg.cfghdr.hdr = &hdr;
625 cfg.physAddr = -1;
626 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
627 cfg.dir = 0;
628 cfg.pageAddr = portnum;
629 cfg.timeout = 0;
630
631 if ((rc = mpt_config(ioc, &cfg)) != 0)
632 return rc;
633
634 if (hdr.PageLength == 0)
635 return 0;
636
637 data_sz = hdr.PageLength * 4;
638 rc = -ENOMEM;
639 ppage0_alloc = (FCPortPage0_t *) pci_alloc_consistent(ioc->pcidev, data_sz, &page0_dma);
640 if (ppage0_alloc) {
641
642 try_again:
643 memset((u8 *)ppage0_alloc, 0, data_sz);
644 cfg.physAddr = page0_dma;
645 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
646
647 if ((rc = mpt_config(ioc, &cfg)) == 0) {
648 /* save the data */
649 pp0dest = &ioc->fc_port_page0[portnum];
650 copy_sz = min_t(int, sizeof(FCPortPage0_t), data_sz);
651 memcpy(pp0dest, ppage0_alloc, copy_sz);
652
653 /*
654 * Normalize endianness of structure data,
655 * by byte-swapping all > 1 byte fields!
656 */
657 pp0dest->Flags = le32_to_cpu(pp0dest->Flags);
658 pp0dest->PortIdentifier = le32_to_cpu(pp0dest->PortIdentifier);
659 pp0dest->WWNN.Low = le32_to_cpu(pp0dest->WWNN.Low);
660 pp0dest->WWNN.High = le32_to_cpu(pp0dest->WWNN.High);
661 pp0dest->WWPN.Low = le32_to_cpu(pp0dest->WWPN.Low);
662 pp0dest->WWPN.High = le32_to_cpu(pp0dest->WWPN.High);
663 pp0dest->SupportedServiceClass = le32_to_cpu(pp0dest->SupportedServiceClass);
664 pp0dest->SupportedSpeeds = le32_to_cpu(pp0dest->SupportedSpeeds);
665 pp0dest->CurrentSpeed = le32_to_cpu(pp0dest->CurrentSpeed);
666 pp0dest->MaxFrameSize = le32_to_cpu(pp0dest->MaxFrameSize);
667 pp0dest->FabricWWNN.Low = le32_to_cpu(pp0dest->FabricWWNN.Low);
668 pp0dest->FabricWWNN.High = le32_to_cpu(pp0dest->FabricWWNN.High);
669 pp0dest->FabricWWPN.Low = le32_to_cpu(pp0dest->FabricWWPN.Low);
670 pp0dest->FabricWWPN.High = le32_to_cpu(pp0dest->FabricWWPN.High);
671 pp0dest->DiscoveredPortsCount = le32_to_cpu(pp0dest->DiscoveredPortsCount);
672 pp0dest->MaxInitiators = le32_to_cpu(pp0dest->MaxInitiators);
673
674 /*
675 * if still doing discovery,
676 * hang loose a while until finished
677 */
678 if ((pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) ||
679 (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE &&
680 (pp0dest->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_TYPE_MASK)
681 == MPI_FCPORTPAGE0_FLAGS_ATTACH_NO_INIT)) {
682 if (count-- > 0) {
683 msleep(100);
684 goto try_again;
685 }
686 printk(MYIOC_s_INFO_FMT "Firmware discovery not"
687 " complete.\n",
688 ioc->name);
689 }
690 }
691
692 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) ppage0_alloc, page0_dma);
693 }
694
695 return rc;
696 }
697
698 static int
699 mptfc_WriteFcPortPage1(MPT_ADAPTER *ioc, int portnum)
700 {
701 ConfigPageHeader_t hdr;
702 CONFIGPARMS cfg;
703 int rc;
704
705 if (portnum > 1)
706 return -EINVAL;
707
708 if (!(ioc->fc_data.fc_port_page1[portnum].data))
709 return -EINVAL;
710
711 /* get fcport page 1 header */
712 hdr.PageVersion = 0;
713 hdr.PageLength = 0;
714 hdr.PageNumber = 1;
715 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
716 cfg.cfghdr.hdr = &hdr;
717 cfg.physAddr = -1;
718 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
719 cfg.dir = 0;
720 cfg.pageAddr = portnum;
721 cfg.timeout = 0;
722
723 if ((rc = mpt_config(ioc, &cfg)) != 0)
724 return rc;
725
726 if (hdr.PageLength == 0)
727 return -ENODEV;
728
729 if (hdr.PageLength*4 != ioc->fc_data.fc_port_page1[portnum].pg_sz)
730 return -EINVAL;
731
732 cfg.physAddr = ioc->fc_data.fc_port_page1[portnum].dma;
733 cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT;
734 cfg.dir = 1;
735
736 rc = mpt_config(ioc, &cfg);
737
738 return rc;
739 }
740
741 static int
742 mptfc_GetFcPortPage1(MPT_ADAPTER *ioc, int portnum)
743 {
744 ConfigPageHeader_t hdr;
745 CONFIGPARMS cfg;
746 FCPortPage1_t *page1_alloc;
747 dma_addr_t page1_dma;
748 int data_sz;
749 int rc;
750
751 if (portnum > 1)
752 return -EINVAL;
753
754 /* get fcport page 1 header */
755 hdr.PageVersion = 0;
756 hdr.PageLength = 0;
757 hdr.PageNumber = 1;
758 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
759 cfg.cfghdr.hdr = &hdr;
760 cfg.physAddr = -1;
761 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
762 cfg.dir = 0;
763 cfg.pageAddr = portnum;
764 cfg.timeout = 0;
765
766 if ((rc = mpt_config(ioc, &cfg)) != 0)
767 return rc;
768
769 if (hdr.PageLength == 0)
770 return -ENODEV;
771
772 start_over:
773
774 if (ioc->fc_data.fc_port_page1[portnum].data == NULL) {
775 data_sz = hdr.PageLength * 4;
776 if (data_sz < sizeof(FCPortPage1_t))
777 data_sz = sizeof(FCPortPage1_t);
778
779 page1_alloc = (FCPortPage1_t *) pci_alloc_consistent(ioc->pcidev,
780 data_sz,
781 &page1_dma);
782 if (!page1_alloc)
783 return -ENOMEM;
784 }
785 else {
786 page1_alloc = ioc->fc_data.fc_port_page1[portnum].data;
787 page1_dma = ioc->fc_data.fc_port_page1[portnum].dma;
788 data_sz = ioc->fc_data.fc_port_page1[portnum].pg_sz;
789 if (hdr.PageLength * 4 > data_sz) {
790 ioc->fc_data.fc_port_page1[portnum].data = NULL;
791 pci_free_consistent(ioc->pcidev, data_sz, (u8 *)
792 page1_alloc, page1_dma);
793 goto start_over;
794 }
795 }
796
797 memset(page1_alloc,0,data_sz);
798
799 cfg.physAddr = page1_dma;
800 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
801
802 if ((rc = mpt_config(ioc, &cfg)) == 0) {
803 ioc->fc_data.fc_port_page1[portnum].data = page1_alloc;
804 ioc->fc_data.fc_port_page1[portnum].pg_sz = data_sz;
805 ioc->fc_data.fc_port_page1[portnum].dma = page1_dma;
806 }
807 else {
808 ioc->fc_data.fc_port_page1[portnum].data = NULL;
809 pci_free_consistent(ioc->pcidev, data_sz, (u8 *)
810 page1_alloc, page1_dma);
811 }
812
813 return rc;
814 }
815
816 static void
817 mptfc_SetFcPortPage1_defaults(MPT_ADAPTER *ioc)
818 {
819 int ii;
820 FCPortPage1_t *pp1;
821
822 #define MPTFC_FW_DEVICE_TIMEOUT (1)
823 #define MPTFC_FW_IO_PEND_TIMEOUT (1)
824 #define ON_FLAGS (MPI_FCPORTPAGE1_FLAGS_IMMEDIATE_ERROR_REPLY)
825 #define OFF_FLAGS (MPI_FCPORTPAGE1_FLAGS_VERBOSE_RESCAN_EVENTS)
826
827 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) {
828 if (mptfc_GetFcPortPage1(ioc, ii) != 0)
829 continue;
830 pp1 = ioc->fc_data.fc_port_page1[ii].data;
831 if ((pp1->InitiatorDeviceTimeout == MPTFC_FW_DEVICE_TIMEOUT)
832 && (pp1->InitiatorIoPendTimeout == MPTFC_FW_IO_PEND_TIMEOUT)
833 && ((pp1->Flags & ON_FLAGS) == ON_FLAGS)
834 && ((pp1->Flags & OFF_FLAGS) == 0))
835 continue;
836 pp1->InitiatorDeviceTimeout = MPTFC_FW_DEVICE_TIMEOUT;
837 pp1->InitiatorIoPendTimeout = MPTFC_FW_IO_PEND_TIMEOUT;
838 pp1->Flags &= ~OFF_FLAGS;
839 pp1->Flags |= ON_FLAGS;
840 mptfc_WriteFcPortPage1(ioc, ii);
841 }
842 }
843
844
845 static void
846 mptfc_init_host_attr(MPT_ADAPTER *ioc,int portnum)
847 {
848 unsigned class = 0;
849 unsigned cos = 0;
850 unsigned speed;
851 unsigned port_type;
852 unsigned port_state;
853 FCPortPage0_t *pp0;
854 struct Scsi_Host *sh;
855 char *sn;
856
857 /* don't know what to do as only one scsi (fc) host was allocated */
858 if (portnum != 0)
859 return;
860
861 pp0 = &ioc->fc_port_page0[portnum];
862 sh = ioc->sh;
863
864 sn = fc_host_symbolic_name(sh);
865 snprintf(sn, FC_SYMBOLIC_NAME_SIZE, "%s %s%08xh",
866 ioc->prod_name,
867 MPT_FW_REV_MAGIC_ID_STRING,
868 ioc->facts.FWVersion.Word);
869
870 fc_host_tgtid_bind_type(sh) = FC_TGTID_BIND_BY_WWPN;
871
872 fc_host_maxframe_size(sh) = pp0->MaxFrameSize;
873
874 fc_host_node_name(sh) =
875 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low;
876
877 fc_host_port_name(sh) =
878 (u64)pp0->WWPN.High << 32 | (u64)pp0->WWPN.Low;
879
880 fc_host_port_id(sh) = pp0->PortIdentifier;
881
882 class = pp0->SupportedServiceClass;
883 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_1)
884 cos |= FC_COS_CLASS1;
885 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_2)
886 cos |= FC_COS_CLASS2;
887 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_3)
888 cos |= FC_COS_CLASS3;
889 fc_host_supported_classes(sh) = cos;
890
891 if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT)
892 speed = FC_PORTSPEED_1GBIT;
893 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT)
894 speed = FC_PORTSPEED_2GBIT;
895 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT)
896 speed = FC_PORTSPEED_4GBIT;
897 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_10GBIT)
898 speed = FC_PORTSPEED_10GBIT;
899 else
900 speed = FC_PORTSPEED_UNKNOWN;
901 fc_host_speed(sh) = speed;
902
903 speed = 0;
904 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_1GBIT_SPEED)
905 speed |= FC_PORTSPEED_1GBIT;
906 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_2GBIT_SPEED)
907 speed |= FC_PORTSPEED_2GBIT;
908 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_4GBIT_SPEED)
909 speed |= FC_PORTSPEED_4GBIT;
910 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_10GBIT_SPEED)
911 speed |= FC_PORTSPEED_10GBIT;
912 fc_host_supported_speeds(sh) = speed;
913
914 port_state = FC_PORTSTATE_UNKNOWN;
915 if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE)
916 port_state = FC_PORTSTATE_ONLINE;
917 else if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_OFFLINE)
918 port_state = FC_PORTSTATE_LINKDOWN;
919 fc_host_port_state(sh) = port_state;
920
921 port_type = FC_PORTTYPE_UNKNOWN;
922 if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_POINT_TO_POINT)
923 port_type = FC_PORTTYPE_PTP;
924 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PRIVATE_LOOP)
925 port_type = FC_PORTTYPE_LPORT;
926 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PUBLIC_LOOP)
927 port_type = FC_PORTTYPE_NLPORT;
928 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_FABRIC_DIRECT)
929 port_type = FC_PORTTYPE_NPORT;
930 fc_host_port_type(sh) = port_type;
931
932 fc_host_fabric_name(sh) =
933 (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_FABRIC_WWN_VALID) ?
934 (u64) pp0->FabricWWNN.High << 32 | (u64) pp0->FabricWWPN.Low :
935 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low;
936
937 }
938
939 static void
940 mptfc_setup_reset(void *arg)
941 {
942 MPT_ADAPTER *ioc = (MPT_ADAPTER *)arg;
943 u64 pn;
944 struct mptfc_rport_info *ri;
945
946 /* reset about to happen, delete (block) all rports */
947 list_for_each_entry(ri, &ioc->fc_rports, list) {
948 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) {
949 ri->flags &= ~MPT_RPORT_INFO_FLAGS_REGISTERED;
950 fc_remote_port_delete(ri->rport); /* won't sleep */
951 ri->rport = NULL;
952
953 pn = (u64)ri->pg0.WWPN.High << 32 |
954 (u64)ri->pg0.WWPN.Low;
955 dfcprintk ((MYIOC_s_INFO_FMT
956 "mptfc_setup_reset.%d: %llx deleted\n",
957 ioc->name,
958 ioc->sh->host_no,
959 (unsigned long long)pn));
960 }
961 }
962 }
963
964 static void
965 mptfc_rescan_devices(void *arg)
966 {
967 MPT_ADAPTER *ioc = (MPT_ADAPTER *)arg;
968 int ii;
969 u64 pn;
970 struct mptfc_rport_info *ri;
971
972 /* start by tagging all ports as missing */
973 list_for_each_entry(ri, &ioc->fc_rports, list) {
974 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) {
975 ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING;
976 }
977 }
978
979 /*
980 * now rescan devices known to adapter,
981 * will reregister existing rports
982 */
983 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
984 (void) mptfc_GetFcPortPage0(ioc, ii);
985 mptfc_init_host_attr(ioc, ii); /* refresh */
986 mptfc_GetFcDevPage0(ioc, ii, mptfc_register_dev);
987 }
988
989 /* delete devices still missing */
990 list_for_each_entry(ri, &ioc->fc_rports, list) {
991 /* if newly missing, delete it */
992 if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) {
993
994 ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED|
995 MPT_RPORT_INFO_FLAGS_MISSING);
996 fc_remote_port_delete(ri->rport); /* won't sleep */
997 ri->rport = NULL;
998
999 pn = (u64)ri->pg0.WWPN.High << 32 |
1000 (u64)ri->pg0.WWPN.Low;
1001 dfcprintk ((MYIOC_s_INFO_FMT
1002 "mptfc_rescan.%d: %llx deleted\n",
1003 ioc->name,
1004 ioc->sh->host_no,
1005 (unsigned long long)pn));
1006 }
1007 }
1008 }
1009
1010 static int
1011 mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id)
1012 {
1013 struct Scsi_Host *sh;
1014 MPT_SCSI_HOST *hd;
1015 MPT_ADAPTER *ioc;
1016 unsigned long flags;
1017 int ii;
1018 int numSGE = 0;
1019 int scale;
1020 int ioc_cap;
1021 int error=0;
1022 int r;
1023
1024 if ((r = mpt_attach(pdev,id)) != 0)
1025 return r;
1026
1027 ioc = pci_get_drvdata(pdev);
1028 ioc->DoneCtx = mptfcDoneCtx;
1029 ioc->TaskCtx = mptfcTaskCtx;
1030 ioc->InternalCtx = mptfcInternalCtx;
1031
1032 /* Added sanity check on readiness of the MPT adapter.
1033 */
1034 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) {
1035 printk(MYIOC_s_WARN_FMT
1036 "Skipping because it's not operational!\n",
1037 ioc->name);
1038 error = -ENODEV;
1039 goto out_mptfc_probe;
1040 }
1041
1042 if (!ioc->active) {
1043 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n",
1044 ioc->name);
1045 error = -ENODEV;
1046 goto out_mptfc_probe;
1047 }
1048
1049 /* Sanity check - ensure at least 1 port is INITIATOR capable
1050 */
1051 ioc_cap = 0;
1052 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1053 if (ioc->pfacts[ii].ProtocolFlags &
1054 MPI_PORTFACTS_PROTOCOL_INITIATOR)
1055 ioc_cap ++;
1056 }
1057
1058 if (!ioc_cap) {
1059 printk(MYIOC_s_WARN_FMT
1060 "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n",
1061 ioc->name, ioc);
1062 return -ENODEV;
1063 }
1064
1065 sh = scsi_host_alloc(&mptfc_driver_template, sizeof(MPT_SCSI_HOST));
1066
1067 if (!sh) {
1068 printk(MYIOC_s_WARN_FMT
1069 "Unable to register controller with SCSI subsystem\n",
1070 ioc->name);
1071 error = -1;
1072 goto out_mptfc_probe;
1073 }
1074
1075 spin_lock_init(&ioc->fc_rescan_work_lock);
1076 INIT_WORK(&ioc->fc_rescan_work, mptfc_rescan_devices,(void *)ioc);
1077 INIT_WORK(&ioc->fc_setup_reset_work, mptfc_setup_reset, (void *)ioc);
1078
1079 spin_lock_irqsave(&ioc->FreeQlock, flags);
1080
1081 /* Attach the SCSI Host to the IOC structure
1082 */
1083 ioc->sh = sh;
1084
1085 sh->io_port = 0;
1086 sh->n_io_port = 0;
1087 sh->irq = 0;
1088
1089 /* set 16 byte cdb's */
1090 sh->max_cmd_len = 16;
1091
1092 sh->max_id = MPT_MAX_FC_DEVICES<256 ? MPT_MAX_FC_DEVICES : 255;
1093
1094 sh->max_lun = MPT_LAST_LUN + 1;
1095 sh->max_channel = 0;
1096 sh->this_id = ioc->pfacts[0].PortSCSIID;
1097
1098 /* Required entry.
1099 */
1100 sh->unique_id = ioc->id;
1101
1102 /* Verify that we won't exceed the maximum
1103 * number of chain buffers
1104 * We can optimize: ZZ = req_sz/sizeof(SGE)
1105 * For 32bit SGE's:
1106 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ
1107 * + (req_sz - 64)/sizeof(SGE)
1108 * A slightly different algorithm is required for
1109 * 64bit SGEs.
1110 */
1111 scale = ioc->req_sz/(sizeof(dma_addr_t) + sizeof(u32));
1112 if (sizeof(dma_addr_t) == sizeof(u64)) {
1113 numSGE = (scale - 1) *
1114 (ioc->facts.MaxChainDepth-1) + scale +
1115 (ioc->req_sz - 60) / (sizeof(dma_addr_t) +
1116 sizeof(u32));
1117 } else {
1118 numSGE = 1 + (scale - 1) *
1119 (ioc->facts.MaxChainDepth-1) + scale +
1120 (ioc->req_sz - 64) / (sizeof(dma_addr_t) +
1121 sizeof(u32));
1122 }
1123
1124 if (numSGE < sh->sg_tablesize) {
1125 /* Reset this value */
1126 dprintk((MYIOC_s_INFO_FMT
1127 "Resetting sg_tablesize to %d from %d\n",
1128 ioc->name, numSGE, sh->sg_tablesize));
1129 sh->sg_tablesize = numSGE;
1130 }
1131
1132 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1133
1134 hd = (MPT_SCSI_HOST *) sh->hostdata;
1135 hd->ioc = ioc;
1136
1137 /* SCSI needs scsi_cmnd lookup table!
1138 * (with size equal to req_depth*PtrSz!)
1139 */
1140 hd->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC);
1141 if (!hd->ScsiLookup) {
1142 error = -ENOMEM;
1143 goto out_mptfc_probe;
1144 }
1145
1146 dprintk((MYIOC_s_INFO_FMT "ScsiLookup @ %p\n",
1147 ioc->name, hd->ScsiLookup));
1148
1149 /* Allocate memory for the device structures.
1150 * A non-Null pointer at an offset
1151 * indicates a device exists.
1152 * max_id = 1 + maximum id (hosts.h)
1153 */
1154 hd->Targets = kcalloc(sh->max_id, sizeof(void *), GFP_ATOMIC);
1155 if (!hd->Targets) {
1156 error = -ENOMEM;
1157 goto out_mptfc_probe;
1158 }
1159
1160 dprintk((KERN_INFO " vdev @ %p\n", hd->Targets));
1161
1162 /* Clear the TM flags
1163 */
1164 hd->tmPending = 0;
1165 hd->tmState = TM_STATE_NONE;
1166 hd->resetPending = 0;
1167 hd->abortSCpnt = NULL;
1168
1169 /* Clear the pointer used to store
1170 * single-threaded commands, i.e., those
1171 * issued during a bus scan, dv and
1172 * configuration pages.
1173 */
1174 hd->cmdPtr = NULL;
1175
1176 /* Initialize this SCSI Hosts' timers
1177 * To use, set the timer expires field
1178 * and add_timer
1179 */
1180 init_timer(&hd->timer);
1181 hd->timer.data = (unsigned long) hd;
1182 hd->timer.function = mptscsih_timer_expired;
1183
1184 init_waitqueue_head(&hd->scandv_waitq);
1185 hd->scandv_wait_done = 0;
1186 hd->last_queue_full = 0;
1187
1188 sh->transportt = mptfc_transport_template;
1189 error = scsi_add_host (sh, &ioc->pcidev->dev);
1190 if(error) {
1191 dprintk((KERN_ERR MYNAM
1192 "scsi_add_host failed\n"));
1193 goto out_mptfc_probe;
1194 }
1195
1196 /* initialize workqueue */
1197
1198 snprintf(ioc->fc_rescan_work_q_name, KOBJ_NAME_LEN, "mptfc_wq_%d",
1199 sh->host_no);
1200 ioc->fc_rescan_work_q =
1201 create_singlethread_workqueue(ioc->fc_rescan_work_q_name);
1202 if (!ioc->fc_rescan_work_q)
1203 goto out_mptfc_probe;
1204
1205 /*
1206 * Pre-fetch FC port WWN and stuff...
1207 * (FCPortPage0_t stuff)
1208 */
1209 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1210 (void) mptfc_GetFcPortPage0(ioc, ii);
1211 }
1212 mptfc_SetFcPortPage1_defaults(ioc);
1213
1214 /*
1215 * scan for rports -
1216 * by doing it via the workqueue, some locking is eliminated
1217 */
1218
1219 queue_work(ioc->fc_rescan_work_q, &ioc->fc_rescan_work);
1220 flush_workqueue(ioc->fc_rescan_work_q);
1221
1222 return 0;
1223
1224 out_mptfc_probe:
1225
1226 mptscsih_remove(pdev);
1227 return error;
1228 }
1229
1230 static struct pci_driver mptfc_driver = {
1231 .name = "mptfc",
1232 .id_table = mptfc_pci_table,
1233 .probe = mptfc_probe,
1234 .remove = __devexit_p(mptfc_remove),
1235 .shutdown = mptscsih_shutdown,
1236 #ifdef CONFIG_PM
1237 .suspend = mptscsih_suspend,
1238 .resume = mptscsih_resume,
1239 #endif
1240 };
1241
1242 static int
1243 mptfc_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
1244 {
1245 MPT_SCSI_HOST *hd;
1246 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
1247 unsigned long flags;
1248 int rc=1;
1249
1250 devtverboseprintk((MYIOC_s_INFO_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n",
1251 ioc->name, event));
1252
1253 if (ioc->sh == NULL ||
1254 ((hd = (MPT_SCSI_HOST *)ioc->sh->hostdata) == NULL))
1255 return 1;
1256
1257 switch (event) {
1258 case MPI_EVENT_RESCAN:
1259 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1260 if (ioc->fc_rescan_work_q) {
1261 queue_work(ioc->fc_rescan_work_q,
1262 &ioc->fc_rescan_work);
1263 }
1264 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1265 break;
1266 default:
1267 rc = mptscsih_event_process(ioc,pEvReply);
1268 break;
1269 }
1270 return rc;
1271 }
1272
1273 static int
1274 mptfc_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
1275 {
1276 int rc;
1277 unsigned long flags;
1278
1279 rc = mptscsih_ioc_reset(ioc,reset_phase);
1280 if (rc == 0)
1281 return rc;
1282
1283
1284 dtmprintk((KERN_WARNING MYNAM
1285 ": IOC %s_reset routed to FC host driver!\n",
1286 reset_phase==MPT_IOC_SETUP_RESET ? "setup" : (
1287 reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post")));
1288
1289 if (reset_phase == MPT_IOC_SETUP_RESET) {
1290 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1291 if (ioc->fc_rescan_work_q) {
1292 queue_work(ioc->fc_rescan_work_q,
1293 &ioc->fc_setup_reset_work);
1294 }
1295 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1296 }
1297
1298 else if (reset_phase == MPT_IOC_PRE_RESET) {
1299 }
1300
1301 else { /* MPT_IOC_POST_RESET */
1302 mptfc_SetFcPortPage1_defaults(ioc);
1303 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1304 if (ioc->fc_rescan_work_q) {
1305 queue_work(ioc->fc_rescan_work_q,
1306 &ioc->fc_rescan_work);
1307 }
1308 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1309 }
1310 return 1;
1311 }
1312
1313 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1314 /**
1315 * mptfc_init - Register MPT adapter(s) as SCSI host(s) with
1316 * linux scsi mid-layer.
1317 *
1318 * Returns 0 for success, non-zero for failure.
1319 */
1320 static int __init
1321 mptfc_init(void)
1322 {
1323 int error;
1324
1325 show_mptmod_ver(my_NAME, my_VERSION);
1326
1327 /* sanity check module parameters */
1328 if (mptfc_dev_loss_tmo <= 0)
1329 mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO;
1330
1331 mptfc_transport_template =
1332 fc_attach_transport(&mptfc_transport_functions);
1333
1334 if (!mptfc_transport_template)
1335 return -ENODEV;
1336
1337 mptfcDoneCtx = mpt_register(mptscsih_io_done, MPTFC_DRIVER);
1338 mptfcTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTFC_DRIVER);
1339 mptfcInternalCtx = mpt_register(mptscsih_scandv_complete, MPTFC_DRIVER);
1340
1341 if (mpt_event_register(mptfcDoneCtx, mptfc_event_process) == 0) {
1342 devtverboseprintk((KERN_INFO MYNAM
1343 ": Registered for IOC event notifications\n"));
1344 }
1345
1346 if (mpt_reset_register(mptfcDoneCtx, mptfc_ioc_reset) == 0) {
1347 dprintk((KERN_INFO MYNAM
1348 ": Registered for IOC reset notifications\n"));
1349 }
1350
1351 error = pci_register_driver(&mptfc_driver);
1352 if (error)
1353 fc_release_transport(mptfc_transport_template);
1354
1355 return error;
1356 }
1357
1358 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1359 /**
1360 * mptfc_remove - Removed fc infrastructure for devices
1361 * @pdev: Pointer to pci_dev structure
1362 *
1363 */
1364 static void __devexit
1365 mptfc_remove(struct pci_dev *pdev)
1366 {
1367 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1368 struct mptfc_rport_info *p, *n;
1369 struct workqueue_struct *work_q;
1370 unsigned long flags;
1371 int ii;
1372
1373 /* destroy workqueue */
1374 if ((work_q=ioc->fc_rescan_work_q)) {
1375 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1376 ioc->fc_rescan_work_q = NULL;
1377 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1378 destroy_workqueue(work_q);
1379 }
1380
1381 fc_remove_host(ioc->sh);
1382
1383 list_for_each_entry_safe(p, n, &ioc->fc_rports, list) {
1384 list_del(&p->list);
1385 kfree(p);
1386 }
1387
1388 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) {
1389 if (ioc->fc_data.fc_port_page1[ii].data) {
1390 pci_free_consistent(ioc->pcidev,
1391 ioc->fc_data.fc_port_page1[ii].pg_sz,
1392 (u8 *) ioc->fc_data.fc_port_page1[ii].data,
1393 ioc->fc_data.fc_port_page1[ii].dma);
1394 ioc->fc_data.fc_port_page1[ii].data = NULL;
1395 }
1396 }
1397
1398 mptscsih_remove(pdev);
1399 }
1400
1401 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1402 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1403 /**
1404 * mptfc_exit - Unregisters MPT adapter(s)
1405 *
1406 */
1407 static void __exit
1408 mptfc_exit(void)
1409 {
1410 pci_unregister_driver(&mptfc_driver);
1411 fc_release_transport(mptfc_transport_template);
1412
1413 mpt_reset_deregister(mptfcDoneCtx);
1414 dprintk((KERN_INFO MYNAM
1415 ": Deregistered for IOC reset notifications\n"));
1416
1417 mpt_event_deregister(mptfcDoneCtx);
1418 dprintk((KERN_INFO MYNAM
1419 ": Deregistered for IOC event notifications\n"));
1420
1421 mpt_deregister(mptfcInternalCtx);
1422 mpt_deregister(mptfcTaskCtx);
1423 mpt_deregister(mptfcDoneCtx);
1424 }
1425
1426 module_init(mptfc_init);
1427 module_exit(mptfc_exit);
Linux kernel - Deliverables
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