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[SCSI] mpt fusion: Link speed change display support
[linux-2.6/mini2440.git] / drivers / message / fusion / mptfc.c
blobaadb0711cb61f4868f85150ec610bbf3ba191ce2
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) 1999-2007 LSI Logic 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
58 #include <scsi/scsi.h>
59 #include <scsi/scsi_cmnd.h>
60 #include <scsi/scsi_device.h>
61 #include <scsi/scsi_host.h>
62 #include <scsi/scsi_tcq.h>
63 #include <scsi/scsi_transport_fc.h>
64
65 #include "mptbase.h"
66 #include "mptscsih.h"
67
68 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
69 #define my_NAME "Fusion MPT FC Host driver"
70 #define my_VERSION MPT_LINUX_VERSION_COMMON
71 #define MYNAM "mptfc"
72
73 MODULE_AUTHOR(MODULEAUTHOR);
74 MODULE_DESCRIPTION(my_NAME);
75 MODULE_LICENSE("GPL");
76 MODULE_VERSION(my_VERSION);
77
78 /* Command line args */
79 #define MPTFC_DEV_LOSS_TMO (60)
80 static int mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO; /* reasonable default */
81 module_param(mptfc_dev_loss_tmo, int, 0);
82 MODULE_PARM_DESC(mptfc_dev_loss_tmo, " Initial time the driver programs the "
83 " transport to wait for an rport to "
84 " return following a device loss event."
85 " Default=60.");
86
87 /* scsi-mid layer global parmeter is max_report_luns, which is 511 */
88 #define MPTFC_MAX_LUN (16895)
89 static int max_lun = MPTFC_MAX_LUN;
90 module_param(max_lun, int, 0);
91 MODULE_PARM_DESC(max_lun, " max lun, default=16895 ");
92
93 static u8 mptfcDoneCtx = MPT_MAX_PROTOCOL_DRIVERS;
94 static u8 mptfcTaskCtx = MPT_MAX_PROTOCOL_DRIVERS;
95 static u8 mptfcInternalCtx = MPT_MAX_PROTOCOL_DRIVERS;
96
97 static int mptfc_target_alloc(struct scsi_target *starget);
98 static int mptfc_slave_alloc(struct scsi_device *sdev);
99 static int mptfc_qcmd(struct scsi_cmnd *SCpnt,
100 void (*done)(struct scsi_cmnd *));
101 static void mptfc_target_destroy(struct scsi_target *starget);
102 static void mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout);
103 static void __devexit mptfc_remove(struct pci_dev *pdev);
104 static int mptfc_abort(struct scsi_cmnd *SCpnt);
105 static int mptfc_dev_reset(struct scsi_cmnd *SCpnt);
106 static int mptfc_bus_reset(struct scsi_cmnd *SCpnt);
107 static int mptfc_host_reset(struct scsi_cmnd *SCpnt);
108
109 static struct scsi_host_template mptfc_driver_template = {
110 .module = THIS_MODULE,
111 .proc_name = "mptfc",
112 .proc_info = mptscsih_proc_info,
113 .name = "MPT FC Host",
114 .info = mptscsih_info,
115 .queuecommand = mptfc_qcmd,
116 .target_alloc = mptfc_target_alloc,
117 .slave_alloc = mptfc_slave_alloc,
118 .slave_configure = mptscsih_slave_configure,
119 .target_destroy = mptfc_target_destroy,
120 .slave_destroy = mptscsih_slave_destroy,
121 .change_queue_depth = mptscsih_change_queue_depth,
122 .eh_abort_handler = mptfc_abort,
123 .eh_device_reset_handler = mptfc_dev_reset,
124 .eh_bus_reset_handler = mptfc_bus_reset,
125 .eh_host_reset_handler = mptfc_host_reset,
126 .bios_param = mptscsih_bios_param,
127 .can_queue = MPT_FC_CAN_QUEUE,
128 .this_id = -1,
129 .sg_tablesize = MPT_SCSI_SG_DEPTH,
130 .max_sectors = 8192,
131 .cmd_per_lun = 7,
132 .use_clustering = ENABLE_CLUSTERING,
133 .shost_attrs = mptscsih_host_attrs,
134 };
135
136 /****************************************************************************
137 * Supported hardware
138 */
139
140 static struct pci_device_id mptfc_pci_table[] = {
141 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC909,
142 PCI_ANY_ID, PCI_ANY_ID },
143 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC919,
144 PCI_ANY_ID, PCI_ANY_ID },
145 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC929,
146 PCI_ANY_ID, PCI_ANY_ID },
147 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC919X,
148 PCI_ANY_ID, PCI_ANY_ID },
149 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC929X,
150 PCI_ANY_ID, PCI_ANY_ID },
151 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC939X,
152 PCI_ANY_ID, PCI_ANY_ID },
153 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC949X,
154 PCI_ANY_ID, PCI_ANY_ID },
155 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC949E,
156 PCI_ANY_ID, PCI_ANY_ID },
157 { PCI_VENDOR_ID_BROCADE, MPI_MANUFACTPAGE_DEVICEID_FC949E,
158 PCI_ANY_ID, PCI_ANY_ID },
159 {0} /* Terminating entry */
160 };
161 MODULE_DEVICE_TABLE(pci, mptfc_pci_table);
162
163 static struct scsi_transport_template *mptfc_transport_template = NULL;
164
165 static struct fc_function_template mptfc_transport_functions = {
166 .dd_fcrport_size = 8,
167 .show_host_node_name = 1,
168 .show_host_port_name = 1,
169 .show_host_supported_classes = 1,
170 .show_host_port_id = 1,
171 .show_rport_supported_classes = 1,
172 .show_starget_node_name = 1,
173 .show_starget_port_name = 1,
174 .show_starget_port_id = 1,
175 .set_rport_dev_loss_tmo = mptfc_set_rport_loss_tmo,
176 .show_rport_dev_loss_tmo = 1,
177 .show_host_supported_speeds = 1,
178 .show_host_maxframe_size = 1,
179 .show_host_speed = 1,
180 .show_host_fabric_name = 1,
181 .show_host_port_type = 1,
182 .show_host_port_state = 1,
183 .show_host_symbolic_name = 1,
184 };
185
186 static int
187 mptfc_block_error_handler(struct scsi_cmnd *SCpnt,
188 int (*func)(struct scsi_cmnd *SCpnt),
189 const char *caller)
190 {
191 MPT_SCSI_HOST *hd;
192 struct scsi_device *sdev = SCpnt->device;
193 struct Scsi_Host *shost = sdev->host;
194 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
195 unsigned long flags;
196 int ready;
197
198 hd = (MPT_SCSI_HOST *) SCpnt->device->host->hostdata;
199 spin_lock_irqsave(shost->host_lock, flags);
200 while ((ready = fc_remote_port_chkready(rport) >> 16) == DID_IMM_RETRY) {
201 spin_unlock_irqrestore(shost->host_lock, flags);
202 dfcprintk (hd->ioc, printk(MYIOC_s_DEBUG_FMT
203 "mptfc_block_error_handler.%d: %d:%d, port status is "
204 "DID_IMM_RETRY, deferring %s recovery.\n",
205 ((MPT_SCSI_HOST *) shost->hostdata)->ioc->name,
206 ((MPT_SCSI_HOST *) shost->hostdata)->ioc->sh->host_no,
207 SCpnt->device->id,SCpnt->device->lun,caller));
208 msleep(1000);
209 spin_lock_irqsave(shost->host_lock, flags);
210 }
211 spin_unlock_irqrestore(shost->host_lock, flags);
212
213 if (ready == DID_NO_CONNECT || !SCpnt->device->hostdata) {
214 dfcprintk (hd->ioc, printk(MYIOC_s_DEBUG_FMT
215 "%s.%d: %d:%d, failing recovery, "
216 "port state %d, vdev %p.\n", caller,
217 ((MPT_SCSI_HOST *) shost->hostdata)->ioc->name,
218 ((MPT_SCSI_HOST *) shost->hostdata)->ioc->sh->host_no,
219 SCpnt->device->id,SCpnt->device->lun,ready,
220 SCpnt->device->hostdata));
221 return FAILED;
222 }
223 dfcprintk (hd->ioc, printk(MYIOC_s_DEBUG_FMT
224 "%s.%d: %d:%d, executing recovery.\n", caller,
225 ((MPT_SCSI_HOST *) shost->hostdata)->ioc->name,
226 ((MPT_SCSI_HOST *) shost->hostdata)->ioc->sh->host_no,
227 SCpnt->device->id,SCpnt->device->lun));
228 return (*func)(SCpnt);
229 }
230
231 static int
232 mptfc_abort(struct scsi_cmnd *SCpnt)
233 {
234 return
235 mptfc_block_error_handler(SCpnt, mptscsih_abort, __FUNCTION__);
236 }
237
238 static int
239 mptfc_dev_reset(struct scsi_cmnd *SCpnt)
240 {
241 return
242 mptfc_block_error_handler(SCpnt, mptscsih_dev_reset, __FUNCTION__);
243 }
244
245 static int
246 mptfc_bus_reset(struct scsi_cmnd *SCpnt)
247 {
248 return
249 mptfc_block_error_handler(SCpnt, mptscsih_bus_reset, __FUNCTION__);
250 }
251
252 static int
253 mptfc_host_reset(struct scsi_cmnd *SCpnt)
254 {
255 return
256 mptfc_block_error_handler(SCpnt, mptscsih_host_reset, __FUNCTION__);
257 }
258
259 static void
260 mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
261 {
262 if (timeout > 0)
263 rport->dev_loss_tmo = timeout;
264 else
265 rport->dev_loss_tmo = mptfc_dev_loss_tmo;
266 }
267
268 static int
269 mptfc_FcDevPage0_cmp_func(const void *a, const void *b)
270 {
271 FCDevicePage0_t **aa = (FCDevicePage0_t **)a;
272 FCDevicePage0_t **bb = (FCDevicePage0_t **)b;
273
274 if ((*aa)->CurrentBus == (*bb)->CurrentBus) {
275 if ((*aa)->CurrentTargetID == (*bb)->CurrentTargetID)
276 return 0;
277 if ((*aa)->CurrentTargetID < (*bb)->CurrentTargetID)
278 return -1;
279 return 1;
280 }
281 if ((*aa)->CurrentBus < (*bb)->CurrentBus)
282 return -1;
283 return 1;
284 }
285
286 static int
287 mptfc_GetFcDevPage0(MPT_ADAPTER *ioc, int ioc_port,
288 void(*func)(MPT_ADAPTER *ioc,int channel, FCDevicePage0_t *arg))
289 {
290 ConfigPageHeader_t hdr;
291 CONFIGPARMS cfg;
292 FCDevicePage0_t *ppage0_alloc, *fc;
293 dma_addr_t page0_dma;
294 int data_sz;
295 int ii;
296
297 FCDevicePage0_t *p0_array=NULL, *p_p0;
298 FCDevicePage0_t **pp0_array=NULL, **p_pp0;
299
300 int rc = -ENOMEM;
301 U32 port_id = 0xffffff;
302 int num_targ = 0;
303 int max_bus = ioc->facts.MaxBuses;
304 int max_targ;
305
306 max_targ = (ioc->facts.MaxDevices == 0) ? 256 : ioc->facts.MaxDevices;
307
308 data_sz = sizeof(FCDevicePage0_t) * max_bus * max_targ;
309 p_p0 = p0_array = kzalloc(data_sz, GFP_KERNEL);
310 if (!p0_array)
311 goto out;
312
313 data_sz = sizeof(FCDevicePage0_t *) * max_bus * max_targ;
314 p_pp0 = pp0_array = kzalloc(data_sz, GFP_KERNEL);
315 if (!pp0_array)
316 goto out;
317
318 do {
319 /* Get FC Device Page 0 header */
320 hdr.PageVersion = 0;
321 hdr.PageLength = 0;
322 hdr.PageNumber = 0;
323 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_DEVICE;
324 cfg.cfghdr.hdr = &hdr;
325 cfg.physAddr = -1;
326 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
327 cfg.dir = 0;
328 cfg.pageAddr = port_id;
329 cfg.timeout = 0;
330
331 if ((rc = mpt_config(ioc, &cfg)) != 0)
332 break;
333
334 if (hdr.PageLength <= 0)
335 break;
336
337 data_sz = hdr.PageLength * 4;
338 ppage0_alloc = pci_alloc_consistent(ioc->pcidev, data_sz,
339 &page0_dma);
340 rc = -ENOMEM;
341 if (!ppage0_alloc)
342 break;
343
344 cfg.physAddr = page0_dma;
345 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
346
347 if ((rc = mpt_config(ioc, &cfg)) == 0) {
348 ppage0_alloc->PortIdentifier =
349 le32_to_cpu(ppage0_alloc->PortIdentifier);
350
351 ppage0_alloc->WWNN.Low =
352 le32_to_cpu(ppage0_alloc->WWNN.Low);
353
354 ppage0_alloc->WWNN.High =
355 le32_to_cpu(ppage0_alloc->WWNN.High);
356
357 ppage0_alloc->WWPN.Low =
358 le32_to_cpu(ppage0_alloc->WWPN.Low);
359
360 ppage0_alloc->WWPN.High =
361 le32_to_cpu(ppage0_alloc->WWPN.High);
362
363 ppage0_alloc->BBCredit =
364 le16_to_cpu(ppage0_alloc->BBCredit);
365
366 ppage0_alloc->MaxRxFrameSize =
367 le16_to_cpu(ppage0_alloc->MaxRxFrameSize);
368
369 port_id = ppage0_alloc->PortIdentifier;
370 num_targ++;
371 *p_p0 = *ppage0_alloc; /* save data */
372 *p_pp0++ = p_p0++; /* save addr */
373 }
374 pci_free_consistent(ioc->pcidev, data_sz,
375 (u8 *) ppage0_alloc, page0_dma);
376 if (rc != 0)
377 break;
378
379 } while (port_id <= 0xff0000);
380
381 if (num_targ) {
382 /* sort array */
383 if (num_targ > 1)
384 sort (pp0_array, num_targ, sizeof(FCDevicePage0_t *),
385 mptfc_FcDevPage0_cmp_func, NULL);
386 /* call caller's func for each targ */
387 for (ii = 0; ii < num_targ; ii++) {
388 fc = *(pp0_array+ii);
389 func(ioc, ioc_port, fc);
390 }
391 }
392
393 out:
394 kfree(pp0_array);
395 kfree(p0_array);
396 return rc;
397 }
398
399 static int
400 mptfc_generate_rport_ids(FCDevicePage0_t *pg0, struct fc_rport_identifiers *rid)
401 {
402 /* not currently usable */
403 if (pg0->Flags & (MPI_FC_DEVICE_PAGE0_FLAGS_PLOGI_INVALID |
404 MPI_FC_DEVICE_PAGE0_FLAGS_PRLI_INVALID))
405 return -1;
406
407 if (!(pg0->Flags & MPI_FC_DEVICE_PAGE0_FLAGS_TARGETID_BUS_VALID))
408 return -1;
409
410 if (!(pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_TARGET))
411 return -1;
412
413 /*
414 * board data structure already normalized to platform endianness
415 * shifted to avoid unaligned access on 64 bit architecture
416 */
417 rid->node_name = ((u64)pg0->WWNN.High) << 32 | (u64)pg0->WWNN.Low;
418 rid->port_name = ((u64)pg0->WWPN.High) << 32 | (u64)pg0->WWPN.Low;
419 rid->port_id = pg0->PortIdentifier;
420 rid->roles = FC_RPORT_ROLE_UNKNOWN;
421
422 return 0;
423 }
424
425 static void
426 mptfc_register_dev(MPT_ADAPTER *ioc, int channel, FCDevicePage0_t *pg0)
427 {
428 struct fc_rport_identifiers rport_ids;
429 struct fc_rport *rport;
430 struct mptfc_rport_info *ri;
431 int new_ri = 1;
432 u64 pn, nn;
433 VirtTarget *vtarget;
434 u32 roles = FC_RPORT_ROLE_UNKNOWN;
435
436 if (mptfc_generate_rport_ids(pg0, &rport_ids) < 0)
437 return;
438
439 roles |= FC_RPORT_ROLE_FCP_TARGET;
440 if (pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_INITIATOR)
441 roles |= FC_RPORT_ROLE_FCP_INITIATOR;
442
443 /* scan list looking for a match */
444 list_for_each_entry(ri, &ioc->fc_rports, list) {
445 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
446 if (pn == rport_ids.port_name) { /* match */
447 list_move_tail(&ri->list, &ioc->fc_rports);
448 new_ri = 0;
449 break;
450 }
451 }
452 if (new_ri) { /* allocate one */
453 ri = kzalloc(sizeof(struct mptfc_rport_info), GFP_KERNEL);
454 if (!ri)
455 return;
456 list_add_tail(&ri->list, &ioc->fc_rports);
457 }
458
459 ri->pg0 = *pg0; /* add/update pg0 data */
460 ri->flags &= ~MPT_RPORT_INFO_FLAGS_MISSING;
461
462 /* MPT_RPORT_INFO_FLAGS_REGISTERED - rport not previously deleted */
463 if (!(ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED)) {
464 ri->flags |= MPT_RPORT_INFO_FLAGS_REGISTERED;
465 rport = fc_remote_port_add(ioc->sh, channel, &rport_ids);
466 if (rport) {
467 ri->rport = rport;
468 if (new_ri) /* may have been reset by user */
469 rport->dev_loss_tmo = mptfc_dev_loss_tmo;
470 /*
471 * if already mapped, remap here. If not mapped,
472 * target_alloc will allocate vtarget and map,
473 * slave_alloc will fill in vdev from vtarget.
474 */
475 if (ri->starget) {
476 vtarget = ri->starget->hostdata;
477 if (vtarget) {
478 vtarget->id = pg0->CurrentTargetID;
479 vtarget->channel = pg0->CurrentBus;
480 }
481 }
482 *((struct mptfc_rport_info **)rport->dd_data) = ri;
483 /* scan will be scheduled once rport becomes a target */
484 fc_remote_port_rolechg(rport,roles);
485
486 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
487 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low;
488 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
489 "mptfc_reg_dev.%d: %x, %llx / %llx, tid %d, "
490 "rport tid %d, tmo %d\n",
491 ioc->name,
492 ioc->sh->host_no,
493 pg0->PortIdentifier,
494 (unsigned long long)nn,
495 (unsigned long long)pn,
496 pg0->CurrentTargetID,
497 ri->rport->scsi_target_id,
498 ri->rport->dev_loss_tmo));
499 } else {
500 list_del(&ri->list);
501 kfree(ri);
502 ri = NULL;
503 }
504 }
505 }
506
507 /*
508 * OS entry point to allow for host driver to free allocated memory
509 * Called if no device present or device being unloaded
510 */
511 static void
512 mptfc_target_destroy(struct scsi_target *starget)
513 {
514 struct fc_rport *rport;
515 struct mptfc_rport_info *ri;
516
517 rport = starget_to_rport(starget);
518 if (rport) {
519 ri = *((struct mptfc_rport_info **)rport->dd_data);
520 if (ri) /* better be! */
521 ri->starget = NULL;
522 }
523 if (starget->hostdata)
524 kfree(starget->hostdata);
525 starget->hostdata = NULL;
526 }
527
528 /*
529 * OS entry point to allow host driver to alloc memory
530 * for each scsi target. Called once per device the bus scan.
531 * Return non-zero if allocation fails.
532 */
533 static int
534 mptfc_target_alloc(struct scsi_target *starget)
535 {
536 VirtTarget *vtarget;
537 struct fc_rport *rport;
538 struct mptfc_rport_info *ri;
539 int rc;
540
541 vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL);
542 if (!vtarget)
543 return -ENOMEM;
544 starget->hostdata = vtarget;
545
546 rc = -ENODEV;
547 rport = starget_to_rport(starget);
548 if (rport) {
549 ri = *((struct mptfc_rport_info **)rport->dd_data);
550 if (ri) { /* better be! */
551 vtarget->id = ri->pg0.CurrentTargetID;
552 vtarget->channel = ri->pg0.CurrentBus;
553 ri->starget = starget;
554 rc = 0;
555 }
556 }
557 if (rc != 0) {
558 kfree(vtarget);
559 starget->hostdata = NULL;
560 }
561
562 return rc;
563 }
564 /*
565 * mptfc_dump_lun_info
566 * @ioc
567 * @rport
568 * @sdev
569 *
570 */
571 static void
572 mptfc_dump_lun_info(MPT_ADAPTER *ioc, struct fc_rport *rport, struct scsi_device *sdev,
573 VirtTarget *vtarget)
574 {
575 u64 nn, pn;
576 struct mptfc_rport_info *ri;
577
578 ri = *((struct mptfc_rport_info **)rport->dd_data);
579 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
580 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low;
581 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
582 "mptfc_slv_alloc.%d: num_luns %d, sdev.id %d, "
583 "CurrentTargetID %d, %x %llx %llx\n",
584 ioc->name,
585 sdev->host->host_no,
586 vtarget->num_luns,
587 sdev->id, ri->pg0.CurrentTargetID,
588 ri->pg0.PortIdentifier,
589 (unsigned long long)pn,
590 (unsigned long long)nn));
591 }
592
593
594 /*
595 * OS entry point to allow host driver to alloc memory
596 * for each scsi device. Called once per device the bus scan.
597 * Return non-zero if allocation fails.
598 * Init memory once per LUN.
599 */
600 static int
601 mptfc_slave_alloc(struct scsi_device *sdev)
602 {
603 MPT_SCSI_HOST *hd;
604 VirtTarget *vtarget;
605 VirtDevice *vdev;
606 struct scsi_target *starget;
607 struct fc_rport *rport;
608
609
610 starget = scsi_target(sdev);
611 rport = starget_to_rport(starget);
612
613 if (!rport || fc_remote_port_chkready(rport))
614 return -ENXIO;
615
616 hd = (MPT_SCSI_HOST *)sdev->host->hostdata;
617
618 vdev = kzalloc(sizeof(VirtDevice), GFP_KERNEL);
619 if (!vdev) {
620 printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n",
621 hd->ioc->name, sizeof(VirtDevice));
622 return -ENOMEM;
623 }
624
625
626 sdev->hostdata = vdev;
627 vtarget = starget->hostdata;
628
629 if (vtarget->num_luns == 0) {
630 vtarget->ioc_id = hd->ioc->id;
631 vtarget->tflags = MPT_TARGET_FLAGS_Q_YES;
632 }
633
634 vdev->vtarget = vtarget;
635 vdev->lun = sdev->lun;
636
637 vtarget->num_luns++;
638
639
640 mptfc_dump_lun_info(hd->ioc, rport, sdev, vtarget);
641
642 return 0;
643 }
644
645 static int
646 mptfc_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
647 {
648 struct mptfc_rport_info *ri;
649 struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device));
650 int err;
651 VirtDevice *vdev = SCpnt->device->hostdata;
652
653 if (!vdev || !vdev->vtarget) {
654 SCpnt->result = DID_NO_CONNECT << 16;
655 done(SCpnt);
656 return 0;
657 }
658
659 err = fc_remote_port_chkready(rport);
660 if (unlikely(err)) {
661 SCpnt->result = err;
662 done(SCpnt);
663 return 0;
664 }
665
666 /* dd_data is null until finished adding target */
667 ri = *((struct mptfc_rport_info **)rport->dd_data);
668 if (unlikely(!ri)) {
669 SCpnt->result = DID_IMM_RETRY << 16;
670 done(SCpnt);
671 return 0;
672 }
673
674 return mptscsih_qcmd(SCpnt,done);
675 }
676
677 /*
678 * mptfc_display_port_link_speed - displaying link speed
679 * @ioc: Pointer to MPT_ADAPTER structure
680 * @portnum: IOC Port number
681 * @pp0dest: port page0 data payload
682 *
683 */
684 static void
685 mptfc_display_port_link_speed(MPT_ADAPTER *ioc, int portnum, FCPortPage0_t *pp0dest)
686 {
687 u8 old_speed, new_speed, state;
688 char *old, *new;
689
690 if (portnum >= 2)
691 return;
692
693 old_speed = ioc->fc_link_speed[portnum];
694 new_speed = pp0dest->CurrentSpeed;
695 state = pp0dest->PortState;
696
697 if (state != MPI_FCPORTPAGE0_PORTSTATE_OFFLINE &&
698 new_speed != MPI_FCPORTPAGE0_CURRENT_SPEED_UKNOWN) {
699
700 old = old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" :
701 old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" :
702 old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" :
703 "Unknown";
704 new = new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" :
705 new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" :
706 new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" :
707 "Unknown";
708 if (old_speed == 0)
709 printk(MYIOC_s_NOTE_FMT
710 "FC Link Established, Speed = %s\n",
711 ioc->name, new);
712 else if (old_speed != new_speed)
713 printk(MYIOC_s_WARN_FMT
714 "FC Link Speed Change, Old Speed = %s, New Speed = %s\n",
715 ioc->name, old, new);
716
717 ioc->fc_link_speed[portnum] = new_speed;
718 }
719 }
720
721 /*
722 * mptfc_GetFcPortPage0 - Fetch FCPort config Page0.
723 * @ioc: Pointer to MPT_ADAPTER structure
724 * @portnum: IOC Port number
725 *
726 * Return: 0 for success
727 * -ENOMEM if no memory available
728 * -EPERM if not allowed due to ISR context
729 * -EAGAIN if no msg frames currently available
730 * -EFAULT for non-successful reply or no reply (timeout)
731 * -EINVAL portnum arg out of range (hardwired to two elements)
732 */
733 static int
734 mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum)
735 {
736 ConfigPageHeader_t hdr;
737 CONFIGPARMS cfg;
738 FCPortPage0_t *ppage0_alloc;
739 FCPortPage0_t *pp0dest;
740 dma_addr_t page0_dma;
741 int data_sz;
742 int copy_sz;
743 int rc;
744 int count = 400;
745
746 if (portnum > 1)
747 return -EINVAL;
748
749 /* Get FCPort Page 0 header */
750 hdr.PageVersion = 0;
751 hdr.PageLength = 0;
752 hdr.PageNumber = 0;
753 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
754 cfg.cfghdr.hdr = &hdr;
755 cfg.physAddr = -1;
756 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
757 cfg.dir = 0;
758 cfg.pageAddr = portnum;
759 cfg.timeout = 0;
760
761 if ((rc = mpt_config(ioc, &cfg)) != 0)
762 return rc;
763
764 if (hdr.PageLength == 0)
765 return 0;
766
767 data_sz = hdr.PageLength * 4;
768 rc = -ENOMEM;
769 ppage0_alloc = (FCPortPage0_t *) pci_alloc_consistent(ioc->pcidev, data_sz, &page0_dma);
770 if (ppage0_alloc) {
771
772 try_again:
773 memset((u8 *)ppage0_alloc, 0, data_sz);
774 cfg.physAddr = page0_dma;
775 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
776
777 if ((rc = mpt_config(ioc, &cfg)) == 0) {
778 /* save the data */
779 pp0dest = &ioc->fc_port_page0[portnum];
780 copy_sz = min_t(int, sizeof(FCPortPage0_t), data_sz);
781 memcpy(pp0dest, ppage0_alloc, copy_sz);
782
783 /*
784 * Normalize endianness of structure data,
785 * by byte-swapping all > 1 byte fields!
786 */
787 pp0dest->Flags = le32_to_cpu(pp0dest->Flags);
788 pp0dest->PortIdentifier = le32_to_cpu(pp0dest->PortIdentifier);
789 pp0dest->WWNN.Low = le32_to_cpu(pp0dest->WWNN.Low);
790 pp0dest->WWNN.High = le32_to_cpu(pp0dest->WWNN.High);
791 pp0dest->WWPN.Low = le32_to_cpu(pp0dest->WWPN.Low);
792 pp0dest->WWPN.High = le32_to_cpu(pp0dest->WWPN.High);
793 pp0dest->SupportedServiceClass = le32_to_cpu(pp0dest->SupportedServiceClass);
794 pp0dest->SupportedSpeeds = le32_to_cpu(pp0dest->SupportedSpeeds);
795 pp0dest->CurrentSpeed = le32_to_cpu(pp0dest->CurrentSpeed);
796 pp0dest->MaxFrameSize = le32_to_cpu(pp0dest->MaxFrameSize);
797 pp0dest->FabricWWNN.Low = le32_to_cpu(pp0dest->FabricWWNN.Low);
798 pp0dest->FabricWWNN.High = le32_to_cpu(pp0dest->FabricWWNN.High);
799 pp0dest->FabricWWPN.Low = le32_to_cpu(pp0dest->FabricWWPN.Low);
800 pp0dest->FabricWWPN.High = le32_to_cpu(pp0dest->FabricWWPN.High);
801 pp0dest->DiscoveredPortsCount = le32_to_cpu(pp0dest->DiscoveredPortsCount);
802 pp0dest->MaxInitiators = le32_to_cpu(pp0dest->MaxInitiators);
803
804 /*
805 * if still doing discovery,
806 * hang loose a while until finished
807 */
808 if ((pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) ||
809 (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE &&
810 (pp0dest->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_TYPE_MASK)
811 == MPI_FCPORTPAGE0_FLAGS_ATTACH_NO_INIT)) {
812 if (count-- > 0) {
813 msleep(100);
814 goto try_again;
815 }
816 printk(MYIOC_s_INFO_FMT "Firmware discovery not"
817 " complete.\n",
818 ioc->name);
819 }
820 mptfc_display_port_link_speed(ioc, portnum, pp0dest);
821 }
822
823 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) ppage0_alloc, page0_dma);
824 }
825
826 return rc;
827 }
828
829 static int
830 mptfc_WriteFcPortPage1(MPT_ADAPTER *ioc, int portnum)
831 {
832 ConfigPageHeader_t hdr;
833 CONFIGPARMS cfg;
834 int rc;
835
836 if (portnum > 1)
837 return -EINVAL;
838
839 if (!(ioc->fc_data.fc_port_page1[portnum].data))
840 return -EINVAL;
841
842 /* get fcport page 1 header */
843 hdr.PageVersion = 0;
844 hdr.PageLength = 0;
845 hdr.PageNumber = 1;
846 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
847 cfg.cfghdr.hdr = &hdr;
848 cfg.physAddr = -1;
849 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
850 cfg.dir = 0;
851 cfg.pageAddr = portnum;
852 cfg.timeout = 0;
853
854 if ((rc = mpt_config(ioc, &cfg)) != 0)
855 return rc;
856
857 if (hdr.PageLength == 0)
858 return -ENODEV;
859
860 if (hdr.PageLength*4 != ioc->fc_data.fc_port_page1[portnum].pg_sz)
861 return -EINVAL;
862
863 cfg.physAddr = ioc->fc_data.fc_port_page1[portnum].dma;
864 cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT;
865 cfg.dir = 1;
866
867 rc = mpt_config(ioc, &cfg);
868
869 return rc;
870 }
871
872 static int
873 mptfc_GetFcPortPage1(MPT_ADAPTER *ioc, int portnum)
874 {
875 ConfigPageHeader_t hdr;
876 CONFIGPARMS cfg;
877 FCPortPage1_t *page1_alloc;
878 dma_addr_t page1_dma;
879 int data_sz;
880 int rc;
881
882 if (portnum > 1)
883 return -EINVAL;
884
885 /* get fcport page 1 header */
886 hdr.PageVersion = 0;
887 hdr.PageLength = 0;
888 hdr.PageNumber = 1;
889 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
890 cfg.cfghdr.hdr = &hdr;
891 cfg.physAddr = -1;
892 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
893 cfg.dir = 0;
894 cfg.pageAddr = portnum;
895 cfg.timeout = 0;
896
897 if ((rc = mpt_config(ioc, &cfg)) != 0)
898 return rc;
899
900 if (hdr.PageLength == 0)
901 return -ENODEV;
902
903 start_over:
904
905 if (ioc->fc_data.fc_port_page1[portnum].data == NULL) {
906 data_sz = hdr.PageLength * 4;
907 if (data_sz < sizeof(FCPortPage1_t))
908 data_sz = sizeof(FCPortPage1_t);
909
910 page1_alloc = (FCPortPage1_t *) pci_alloc_consistent(ioc->pcidev,
911 data_sz,
912 &page1_dma);
913 if (!page1_alloc)
914 return -ENOMEM;
915 }
916 else {
917 page1_alloc = ioc->fc_data.fc_port_page1[portnum].data;
918 page1_dma = ioc->fc_data.fc_port_page1[portnum].dma;
919 data_sz = ioc->fc_data.fc_port_page1[portnum].pg_sz;
920 if (hdr.PageLength * 4 > data_sz) {
921 ioc->fc_data.fc_port_page1[portnum].data = NULL;
922 pci_free_consistent(ioc->pcidev, data_sz, (u8 *)
923 page1_alloc, page1_dma);
924 goto start_over;
925 }
926 }
927
928 memset(page1_alloc,0,data_sz);
929
930 cfg.physAddr = page1_dma;
931 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
932
933 if ((rc = mpt_config(ioc, &cfg)) == 0) {
934 ioc->fc_data.fc_port_page1[portnum].data = page1_alloc;
935 ioc->fc_data.fc_port_page1[portnum].pg_sz = data_sz;
936 ioc->fc_data.fc_port_page1[portnum].dma = page1_dma;
937 }
938 else {
939 ioc->fc_data.fc_port_page1[portnum].data = NULL;
940 pci_free_consistent(ioc->pcidev, data_sz, (u8 *)
941 page1_alloc, page1_dma);
942 }
943
944 return rc;
945 }
946
947 static void
948 mptfc_SetFcPortPage1_defaults(MPT_ADAPTER *ioc)
949 {
950 int ii;
951 FCPortPage1_t *pp1;
952
953 #define MPTFC_FW_DEVICE_TIMEOUT (1)
954 #define MPTFC_FW_IO_PEND_TIMEOUT (1)
955 #define ON_FLAGS (MPI_FCPORTPAGE1_FLAGS_IMMEDIATE_ERROR_REPLY)
956 #define OFF_FLAGS (MPI_FCPORTPAGE1_FLAGS_VERBOSE_RESCAN_EVENTS)
957
958 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) {
959 if (mptfc_GetFcPortPage1(ioc, ii) != 0)
960 continue;
961 pp1 = ioc->fc_data.fc_port_page1[ii].data;
962 if ((pp1->InitiatorDeviceTimeout == MPTFC_FW_DEVICE_TIMEOUT)
963 && (pp1->InitiatorIoPendTimeout == MPTFC_FW_IO_PEND_TIMEOUT)
964 && ((pp1->Flags & ON_FLAGS) == ON_FLAGS)
965 && ((pp1->Flags & OFF_FLAGS) == 0))
966 continue;
967 pp1->InitiatorDeviceTimeout = MPTFC_FW_DEVICE_TIMEOUT;
968 pp1->InitiatorIoPendTimeout = MPTFC_FW_IO_PEND_TIMEOUT;
969 pp1->Flags &= ~OFF_FLAGS;
970 pp1->Flags |= ON_FLAGS;
971 mptfc_WriteFcPortPage1(ioc, ii);
972 }
973 }
974
975
976 static void
977 mptfc_init_host_attr(MPT_ADAPTER *ioc,int portnum)
978 {
979 unsigned class = 0;
980 unsigned cos = 0;
981 unsigned speed;
982 unsigned port_type;
983 unsigned port_state;
984 FCPortPage0_t *pp0;
985 struct Scsi_Host *sh;
986 char *sn;
987
988 /* don't know what to do as only one scsi (fc) host was allocated */
989 if (portnum != 0)
990 return;
991
992 pp0 = &ioc->fc_port_page0[portnum];
993 sh = ioc->sh;
994
995 sn = fc_host_symbolic_name(sh);
996 snprintf(sn, FC_SYMBOLIC_NAME_SIZE, "%s %s%08xh",
997 ioc->prod_name,
998 MPT_FW_REV_MAGIC_ID_STRING,
999 ioc->facts.FWVersion.Word);
1000
1001 fc_host_tgtid_bind_type(sh) = FC_TGTID_BIND_BY_WWPN;
1002
1003 fc_host_maxframe_size(sh) = pp0->MaxFrameSize;
1004
1005 fc_host_node_name(sh) =
1006 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low;
1007
1008 fc_host_port_name(sh) =
1009 (u64)pp0->WWPN.High << 32 | (u64)pp0->WWPN.Low;
1010
1011 fc_host_port_id(sh) = pp0->PortIdentifier;
1012
1013 class = pp0->SupportedServiceClass;
1014 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_1)
1015 cos |= FC_COS_CLASS1;
1016 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_2)
1017 cos |= FC_COS_CLASS2;
1018 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_3)
1019 cos |= FC_COS_CLASS3;
1020 fc_host_supported_classes(sh) = cos;
1021
1022 if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT)
1023 speed = FC_PORTSPEED_1GBIT;
1024 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT)
1025 speed = FC_PORTSPEED_2GBIT;
1026 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT)
1027 speed = FC_PORTSPEED_4GBIT;
1028 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_10GBIT)
1029 speed = FC_PORTSPEED_10GBIT;
1030 else
1031 speed = FC_PORTSPEED_UNKNOWN;
1032 fc_host_speed(sh) = speed;
1033
1034 speed = 0;
1035 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_1GBIT_SPEED)
1036 speed |= FC_PORTSPEED_1GBIT;
1037 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_2GBIT_SPEED)
1038 speed |= FC_PORTSPEED_2GBIT;
1039 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_4GBIT_SPEED)
1040 speed |= FC_PORTSPEED_4GBIT;
1041 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_10GBIT_SPEED)
1042 speed |= FC_PORTSPEED_10GBIT;
1043 fc_host_supported_speeds(sh) = speed;
1044
1045 port_state = FC_PORTSTATE_UNKNOWN;
1046 if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE)
1047 port_state = FC_PORTSTATE_ONLINE;
1048 else if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_OFFLINE)
1049 port_state = FC_PORTSTATE_LINKDOWN;
1050 fc_host_port_state(sh) = port_state;
1051
1052 port_type = FC_PORTTYPE_UNKNOWN;
1053 if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_POINT_TO_POINT)
1054 port_type = FC_PORTTYPE_PTP;
1055 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PRIVATE_LOOP)
1056 port_type = FC_PORTTYPE_LPORT;
1057 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PUBLIC_LOOP)
1058 port_type = FC_PORTTYPE_NLPORT;
1059 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_FABRIC_DIRECT)
1060 port_type = FC_PORTTYPE_NPORT;
1061 fc_host_port_type(sh) = port_type;
1062
1063 fc_host_fabric_name(sh) =
1064 (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_FABRIC_WWN_VALID) ?
1065 (u64) pp0->FabricWWNN.High << 32 | (u64) pp0->FabricWWPN.Low :
1066 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low;
1067
1068 }
1069
1070 static void
1071 mptfc_link_status_change(struct work_struct *work)
1072 {
1073 MPT_ADAPTER *ioc =
1074 container_of(work, MPT_ADAPTER, fc_rescan_work);
1075 int ii;
1076
1077 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++)
1078 (void) mptfc_GetFcPortPage0(ioc, ii);
1079
1080 }
1081
1082 static void
1083 mptfc_setup_reset(struct work_struct *work)
1084 {
1085 MPT_ADAPTER *ioc =
1086 container_of(work, MPT_ADAPTER, fc_setup_reset_work);
1087 u64 pn;
1088 struct mptfc_rport_info *ri;
1089
1090 /* reset about to happen, delete (block) all rports */
1091 list_for_each_entry(ri, &ioc->fc_rports, list) {
1092 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) {
1093 ri->flags &= ~MPT_RPORT_INFO_FLAGS_REGISTERED;
1094 fc_remote_port_delete(ri->rport); /* won't sleep */
1095 ri->rport = NULL;
1096
1097 pn = (u64)ri->pg0.WWPN.High << 32 |
1098 (u64)ri->pg0.WWPN.Low;
1099 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
1100 "mptfc_setup_reset.%d: %llx deleted\n",
1101 ioc->name,
1102 ioc->sh->host_no,
1103 (unsigned long long)pn));
1104 }
1105 }
1106 }
1107
1108 static void
1109 mptfc_rescan_devices(struct work_struct *work)
1110 {
1111 MPT_ADAPTER *ioc =
1112 container_of(work, MPT_ADAPTER, fc_rescan_work);
1113 int ii;
1114 u64 pn;
1115 struct mptfc_rport_info *ri;
1116
1117 /* start by tagging all ports as missing */
1118 list_for_each_entry(ri, &ioc->fc_rports, list) {
1119 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) {
1120 ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING;
1121 }
1122 }
1123
1124 /*
1125 * now rescan devices known to adapter,
1126 * will reregister existing rports
1127 */
1128 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1129 (void) mptfc_GetFcPortPage0(ioc, ii);
1130 mptfc_init_host_attr(ioc, ii); /* refresh */
1131 mptfc_GetFcDevPage0(ioc, ii, mptfc_register_dev);
1132 }
1133
1134 /* delete devices still missing */
1135 list_for_each_entry(ri, &ioc->fc_rports, list) {
1136 /* if newly missing, delete it */
1137 if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) {
1138
1139 ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED|
1140 MPT_RPORT_INFO_FLAGS_MISSING);
1141 fc_remote_port_delete(ri->rport); /* won't sleep */
1142 ri->rport = NULL;
1143
1144 pn = (u64)ri->pg0.WWPN.High << 32 |
1145 (u64)ri->pg0.WWPN.Low;
1146 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
1147 "mptfc_rescan.%d: %llx deleted\n",
1148 ioc->name,
1149 ioc->sh->host_no,
1150 (unsigned long long)pn));
1151 }
1152 }
1153 }
1154
1155 static int
1156 mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id)
1157 {
1158 struct Scsi_Host *sh;
1159 MPT_SCSI_HOST *hd;
1160 MPT_ADAPTER *ioc;
1161 unsigned long flags;
1162 int ii;
1163 int numSGE = 0;
1164 int scale;
1165 int ioc_cap;
1166 int error=0;
1167 int r;
1168
1169 if ((r = mpt_attach(pdev,id)) != 0)
1170 return r;
1171
1172 ioc = pci_get_drvdata(pdev);
1173 ioc->DoneCtx = mptfcDoneCtx;
1174 ioc->TaskCtx = mptfcTaskCtx;
1175 ioc->InternalCtx = mptfcInternalCtx;
1176
1177 /* Added sanity check on readiness of the MPT adapter.
1178 */
1179 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) {
1180 printk(MYIOC_s_WARN_FMT
1181 "Skipping because it's not operational!\n",
1182 ioc->name);
1183 error = -ENODEV;
1184 goto out_mptfc_probe;
1185 }
1186
1187 if (!ioc->active) {
1188 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n",
1189 ioc->name);
1190 error = -ENODEV;
1191 goto out_mptfc_probe;
1192 }
1193
1194 /* Sanity check - ensure at least 1 port is INITIATOR capable
1195 */
1196 ioc_cap = 0;
1197 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1198 if (ioc->pfacts[ii].ProtocolFlags &
1199 MPI_PORTFACTS_PROTOCOL_INITIATOR)
1200 ioc_cap ++;
1201 }
1202
1203 if (!ioc_cap) {
1204 printk(MYIOC_s_WARN_FMT
1205 "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n",
1206 ioc->name, ioc);
1207 return 0;
1208 }
1209
1210 sh = scsi_host_alloc(&mptfc_driver_template, sizeof(MPT_SCSI_HOST));
1211
1212 if (!sh) {
1213 printk(MYIOC_s_WARN_FMT
1214 "Unable to register controller with SCSI subsystem\n",
1215 ioc->name);
1216 error = -1;
1217 goto out_mptfc_probe;
1218 }
1219
1220 spin_lock_init(&ioc->fc_rescan_work_lock);
1221 INIT_WORK(&ioc->fc_rescan_work, mptfc_rescan_devices);
1222 INIT_WORK(&ioc->fc_setup_reset_work, mptfc_setup_reset);
1223 INIT_WORK(&ioc->fc_lsc_work, mptfc_link_status_change);
1224
1225 spin_lock_irqsave(&ioc->FreeQlock, flags);
1226
1227 /* Attach the SCSI Host to the IOC structure
1228 */
1229 ioc->sh = sh;
1230
1231 sh->io_port = 0;
1232 sh->n_io_port = 0;
1233 sh->irq = 0;
1234
1235 /* set 16 byte cdb's */
1236 sh->max_cmd_len = 16;
1237
1238 sh->max_id = ioc->pfacts->MaxDevices;
1239 sh->max_lun = max_lun;
1240
1241 sh->this_id = ioc->pfacts[0].PortSCSIID;
1242
1243 /* Required entry.
1244 */
1245 sh->unique_id = ioc->id;
1246
1247 /* Verify that we won't exceed the maximum
1248 * number of chain buffers
1249 * We can optimize: ZZ = req_sz/sizeof(SGE)
1250 * For 32bit SGE's:
1251 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ
1252 * + (req_sz - 64)/sizeof(SGE)
1253 * A slightly different algorithm is required for
1254 * 64bit SGEs.
1255 */
1256 scale = ioc->req_sz/(sizeof(dma_addr_t) + sizeof(u32));
1257 if (sizeof(dma_addr_t) == sizeof(u64)) {
1258 numSGE = (scale - 1) *
1259 (ioc->facts.MaxChainDepth-1) + scale +
1260 (ioc->req_sz - 60) / (sizeof(dma_addr_t) +
1261 sizeof(u32));
1262 } else {
1263 numSGE = 1 + (scale - 1) *
1264 (ioc->facts.MaxChainDepth-1) + scale +
1265 (ioc->req_sz - 64) / (sizeof(dma_addr_t) +
1266 sizeof(u32));
1267 }
1268
1269 if (numSGE < sh->sg_tablesize) {
1270 /* Reset this value */
1271 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1272 "Resetting sg_tablesize to %d from %d\n",
1273 ioc->name, numSGE, sh->sg_tablesize));
1274 sh->sg_tablesize = numSGE;
1275 }
1276
1277 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1278
1279 hd = (MPT_SCSI_HOST *) sh->hostdata;
1280 hd->ioc = ioc;
1281
1282 /* SCSI needs scsi_cmnd lookup table!
1283 * (with size equal to req_depth*PtrSz!)
1284 */
1285 hd->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC);
1286 if (!hd->ScsiLookup) {
1287 error = -ENOMEM;
1288 goto out_mptfc_probe;
1289 }
1290
1291 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScsiLookup @ %p\n",
1292 ioc->name, hd->ScsiLookup));
1293
1294 /* Clear the TM flags
1295 */
1296 hd->tmPending = 0;
1297 hd->tmState = TM_STATE_NONE;
1298 hd->resetPending = 0;
1299 hd->abortSCpnt = NULL;
1300
1301 /* Clear the pointer used to store
1302 * single-threaded commands, i.e., those
1303 * issued during a bus scan, dv and
1304 * configuration pages.
1305 */
1306 hd->cmdPtr = NULL;
1307
1308 /* Initialize this SCSI Hosts' timers
1309 * To use, set the timer expires field
1310 * and add_timer
1311 */
1312 init_timer(&hd->timer);
1313 hd->timer.data = (unsigned long) hd;
1314 hd->timer.function = mptscsih_timer_expired;
1315
1316 init_waitqueue_head(&hd->scandv_waitq);
1317 hd->scandv_wait_done = 0;
1318 hd->last_queue_full = 0;
1319
1320 sh->transportt = mptfc_transport_template;
1321 error = scsi_add_host (sh, &ioc->pcidev->dev);
1322 if(error) {
1323 dprintk(ioc, printk(KERN_ERR MYNAM
1324 "scsi_add_host failed\n"));
1325 goto out_mptfc_probe;
1326 }
1327
1328 /* initialize workqueue */
1329
1330 snprintf(ioc->fc_rescan_work_q_name, KOBJ_NAME_LEN, "mptfc_wq_%d",
1331 sh->host_no);
1332 ioc->fc_rescan_work_q =
1333 create_singlethread_workqueue(ioc->fc_rescan_work_q_name);
1334 if (!ioc->fc_rescan_work_q)
1335 goto out_mptfc_probe;
1336
1337 /*
1338 * Pre-fetch FC port WWN and stuff...
1339 * (FCPortPage0_t stuff)
1340 */
1341 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1342 (void) mptfc_GetFcPortPage0(ioc, ii);
1343 }
1344 mptfc_SetFcPortPage1_defaults(ioc);
1345
1346 /*
1347 * scan for rports -
1348 * by doing it via the workqueue, some locking is eliminated
1349 */
1350
1351 queue_work(ioc->fc_rescan_work_q, &ioc->fc_rescan_work);
1352 flush_workqueue(ioc->fc_rescan_work_q);
1353
1354 return 0;
1355
1356 out_mptfc_probe:
1357
1358 mptscsih_remove(pdev);
1359 return error;
1360 }
1361
1362 static struct pci_driver mptfc_driver = {
1363 .name = "mptfc",
1364 .id_table = mptfc_pci_table,
1365 .probe = mptfc_probe,
1366 .remove = __devexit_p(mptfc_remove),
1367 .shutdown = mptscsih_shutdown,
1368 #ifdef CONFIG_PM
1369 .suspend = mptscsih_suspend,
1370 .resume = mptscsih_resume,
1371 #endif
1372 };
1373
1374 static int
1375 mptfc_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
1376 {
1377 MPT_SCSI_HOST *hd;
1378 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
1379 unsigned long flags;
1380 int rc=1;
1381
1382 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n",
1383 ioc->name, event));
1384
1385 if (ioc->sh == NULL ||
1386 ((hd = (MPT_SCSI_HOST *)ioc->sh->hostdata) == NULL))
1387 return 1;
1388
1389 switch (event) {
1390 case MPI_EVENT_RESCAN:
1391 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1392 if (ioc->fc_rescan_work_q) {
1393 queue_work(ioc->fc_rescan_work_q,
1394 &ioc->fc_rescan_work);
1395 }
1396 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1397 break;
1398 case MPI_EVENT_LINK_STATUS_CHANGE:
1399 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1400 if (ioc->fc_rescan_work_q) {
1401 queue_work(ioc->fc_rescan_work_q,
1402 &ioc->fc_lsc_work);
1403 }
1404 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1405 break;
1406 default:
1407 rc = mptscsih_event_process(ioc,pEvReply);
1408 break;
1409 }
1410 return rc;
1411 }
1412
1413 static int
1414 mptfc_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
1415 {
1416 int rc;
1417 unsigned long flags;
1418
1419 rc = mptscsih_ioc_reset(ioc,reset_phase);
1420 if (rc == 0)
1421 return rc;
1422
1423
1424 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1425 ": IOC %s_reset routed to FC host driver!\n",ioc->name,
1426 reset_phase==MPT_IOC_SETUP_RESET ? "setup" : (
1427 reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post")));
1428
1429 if (reset_phase == MPT_IOC_SETUP_RESET) {
1430 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1431 if (ioc->fc_rescan_work_q) {
1432 queue_work(ioc->fc_rescan_work_q,
1433 &ioc->fc_setup_reset_work);
1434 }
1435 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1436 }
1437
1438 else if (reset_phase == MPT_IOC_PRE_RESET) {
1439 }
1440
1441 else { /* MPT_IOC_POST_RESET */
1442 mptfc_SetFcPortPage1_defaults(ioc);
1443 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1444 if (ioc->fc_rescan_work_q) {
1445 queue_work(ioc->fc_rescan_work_q,
1446 &ioc->fc_rescan_work);
1447 }
1448 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1449 }
1450 return 1;
1451 }
1452
1453 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1454 /**
1455 * mptfc_init - Register MPT adapter(s) as SCSI host(s) with SCSI mid-layer.
1456 *
1457 * Returns 0 for success, non-zero for failure.
1458 */
1459 static int __init
1460 mptfc_init(void)
1461 {
1462 int error;
1463
1464 show_mptmod_ver(my_NAME, my_VERSION);
1465
1466 /* sanity check module parameters */
1467 if (mptfc_dev_loss_tmo <= 0)
1468 mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO;
1469
1470 mptfc_transport_template =
1471 fc_attach_transport(&mptfc_transport_functions);
1472
1473 if (!mptfc_transport_template)
1474 return -ENODEV;
1475
1476 mptfcDoneCtx = mpt_register(mptscsih_io_done, MPTFC_DRIVER);
1477 mptfcTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTFC_DRIVER);
1478 mptfcInternalCtx = mpt_register(mptscsih_scandv_complete, MPTFC_DRIVER);
1479
1480 mpt_event_register(mptfcDoneCtx, mptfc_event_process);
1481 mpt_reset_register(mptfcDoneCtx, mptfc_ioc_reset);
1482
1483 error = pci_register_driver(&mptfc_driver);
1484 if (error)
1485 fc_release_transport(mptfc_transport_template);
1486
1487 return error;
1488 }
1489
1490 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1491 /**
1492 * mptfc_remove - Remove fc infrastructure for devices
1493 * @pdev: Pointer to pci_dev structure
1494 *
1495 */
1496 static void __devexit
1497 mptfc_remove(struct pci_dev *pdev)
1498 {
1499 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1500 struct mptfc_rport_info *p, *n;
1501 struct workqueue_struct *work_q;
1502 unsigned long flags;
1503 int ii;
1504
1505 /* destroy workqueue */
1506 if ((work_q=ioc->fc_rescan_work_q)) {
1507 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1508 ioc->fc_rescan_work_q = NULL;
1509 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1510 destroy_workqueue(work_q);
1511 }
1512
1513 fc_remove_host(ioc->sh);
1514
1515 list_for_each_entry_safe(p, n, &ioc->fc_rports, list) {
1516 list_del(&p->list);
1517 kfree(p);
1518 }
1519
1520 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) {
1521 if (ioc->fc_data.fc_port_page1[ii].data) {
1522 pci_free_consistent(ioc->pcidev,
1523 ioc->fc_data.fc_port_page1[ii].pg_sz,
1524 (u8 *) ioc->fc_data.fc_port_page1[ii].data,
1525 ioc->fc_data.fc_port_page1[ii].dma);
1526 ioc->fc_data.fc_port_page1[ii].data = NULL;
1527 }
1528 }
1529
1530 mptscsih_remove(pdev);
1531 }
1532
1533 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1534 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1535 /**
1536 * mptfc_exit - Unregisters MPT adapter(s)
1537 *
1538 */
1539 static void __exit
1540 mptfc_exit(void)
1541 {
1542 pci_unregister_driver(&mptfc_driver);
1543 fc_release_transport(mptfc_transport_template);
1544
1545 mpt_reset_deregister(mptfcDoneCtx);
1546 mpt_event_deregister(mptfcDoneCtx);
1547
1548 mpt_deregister(mptfcInternalCtx);
1549 mpt_deregister(mptfcTaskCtx);
1550 mpt_deregister(mptfcDoneCtx);
1551 }
1552
1553 module_init(mptfc_init);
1554 module_exit(mptfc_exit);
Support for the Chinese Samsung S3C2440 based development boards