projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit...
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / message / fusion / mptfc.c
1 /*
2 * linux/drivers/message/fusion/mptfc.c
3 * For use with LSI PCI chip/adapter(s)
4 * running LSI Fusion MPT (Message Passing Technology) firmware.
5 *
6 * Copyright (c) 1999-2008 LSI Corporation
7 * (mailto:DL-MPTFusionLinux@lsi.com)
8 *
9 */
10 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
11 /*
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; version 2 of the License.
15
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
20
21 NO WARRANTY
22 THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
23 CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
24 LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
25 MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
26 solely responsible for determining the appropriateness of using and
27 distributing the Program and assumes all risks associated with its
28 exercise of rights under this Agreement, including but not limited to
29 the risks and costs of program errors, damage to or loss of data,
30 programs or equipment, and unavailability or interruption of operations.
31
32 DISCLAIMER OF LIABILITY
33 NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
34 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
35 DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
36 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
37 TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
38 USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
39 HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
40
41 You should have received a copy of the GNU General Public License
42 along with this program; if not, write to the Free Software
43 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
44 */
45 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
46 #include <linux/module.h>
47 #include <linux/kernel.h>
48 #include <linux/init.h>
49 #include <linux/errno.h>
50 #include <linux/kdev_t.h>
51 #include <linux/blkdev.h>
52 #include <linux/delay.h> /* for mdelay */
53 #include <linux/interrupt.h> /* needed for in_interrupt() proto */
54 #include <linux/reboot.h> /* notifier code */
55 #include <linux/workqueue.h>
56 #include <linux/sort.h>
57 #include <linux/slab.h>
58
59 #include <scsi/scsi.h>
60 #include <scsi/scsi_cmnd.h>
61 #include <scsi/scsi_device.h>
62 #include <scsi/scsi_host.h>
63 #include <scsi/scsi_tcq.h>
64 #include <scsi/scsi_transport_fc.h>
65
66 #include "mptbase.h"
67 #include "mptscsih.h"
68
69 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
70 #define my_NAME "Fusion MPT FC Host driver"
71 #define my_VERSION MPT_LINUX_VERSION_COMMON
72 #define MYNAM "mptfc"
73
74 MODULE_AUTHOR(MODULEAUTHOR);
75 MODULE_DESCRIPTION(my_NAME);
76 MODULE_LICENSE("GPL");
77 MODULE_VERSION(my_VERSION);
78
79 /* Command line args */
80 #define MPTFC_DEV_LOSS_TMO (60)
81 static int mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO; /* reasonable default */
82 module_param(mptfc_dev_loss_tmo, int, 0);
83 MODULE_PARM_DESC(mptfc_dev_loss_tmo, " Initial time the driver programs the "
84 " transport to wait for an rport to "
85 " return following a device loss event."
86 " Default=60.");
87
88 /* scsi-mid layer global parmeter is max_report_luns, which is 511 */
89 #define MPTFC_MAX_LUN (16895)
90 static int max_lun = MPTFC_MAX_LUN;
91 module_param(max_lun, int, 0);
92 MODULE_PARM_DESC(max_lun, " max lun, default=16895 ");
93
94 static u8 mptfcDoneCtx = MPT_MAX_PROTOCOL_DRIVERS;
95 static u8 mptfcTaskCtx = MPT_MAX_PROTOCOL_DRIVERS;
96 static u8 mptfcInternalCtx = MPT_MAX_PROTOCOL_DRIVERS;
97
98 static int mptfc_target_alloc(struct scsi_target *starget);
99 static int mptfc_slave_alloc(struct scsi_device *sdev);
100 static int mptfc_qcmd(struct scsi_cmnd *SCpnt,
101 void (*done)(struct scsi_cmnd *));
102 static void mptfc_target_destroy(struct scsi_target *starget);
103 static void mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout);
104 static void __devexit mptfc_remove(struct pci_dev *pdev);
105 static int mptfc_abort(struct scsi_cmnd *SCpnt);
106 static int mptfc_dev_reset(struct scsi_cmnd *SCpnt);
107 static int mptfc_bus_reset(struct scsi_cmnd *SCpnt);
108 static int mptfc_host_reset(struct scsi_cmnd *SCpnt);
109
110 static struct scsi_host_template mptfc_driver_template = {
111 .module = THIS_MODULE,
112 .proc_name = "mptfc",
113 .proc_info = mptscsih_proc_info,
114 .name = "MPT FC Host",
115 .info = mptscsih_info,
116 .queuecommand = mptfc_qcmd,
117 .target_alloc = mptfc_target_alloc,
118 .slave_alloc = mptfc_slave_alloc,
119 .slave_configure = mptscsih_slave_configure,
120 .target_destroy = mptfc_target_destroy,
121 .slave_destroy = mptscsih_slave_destroy,
122 .change_queue_depth = mptscsih_change_queue_depth,
123 .eh_abort_handler = mptfc_abort,
124 .eh_device_reset_handler = mptfc_dev_reset,
125 .eh_bus_reset_handler = mptfc_bus_reset,
126 .eh_host_reset_handler = mptfc_host_reset,
127 .bios_param = mptscsih_bios_param,
128 .can_queue = MPT_FC_CAN_QUEUE,
129 .this_id = -1,
130 .sg_tablesize = MPT_SCSI_SG_DEPTH,
131 .max_sectors = 8192,
132 .cmd_per_lun = 7,
133 .use_clustering = ENABLE_CLUSTERING,
134 .shost_attrs = mptscsih_host_attrs,
135 };
136
137 /****************************************************************************
138 * Supported hardware
139 */
140
141 static struct pci_device_id mptfc_pci_table[] = {
142 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC909,
143 PCI_ANY_ID, PCI_ANY_ID },
144 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC919,
145 PCI_ANY_ID, PCI_ANY_ID },
146 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC929,
147 PCI_ANY_ID, PCI_ANY_ID },
148 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC919X,
149 PCI_ANY_ID, PCI_ANY_ID },
150 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC929X,
151 PCI_ANY_ID, PCI_ANY_ID },
152 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC939X,
153 PCI_ANY_ID, PCI_ANY_ID },
154 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC949X,
155 PCI_ANY_ID, PCI_ANY_ID },
156 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC949E,
157 PCI_ANY_ID, PCI_ANY_ID },
158 { PCI_VENDOR_ID_BROCADE, MPI_MANUFACTPAGE_DEVICEID_FC949E,
159 PCI_ANY_ID, PCI_ANY_ID },
160 {0} /* Terminating entry */
161 };
162 MODULE_DEVICE_TABLE(pci, mptfc_pci_table);
163
164 static struct scsi_transport_template *mptfc_transport_template = NULL;
165
166 static struct fc_function_template mptfc_transport_functions = {
167 .dd_fcrport_size = 8,
168 .show_host_node_name = 1,
169 .show_host_port_name = 1,
170 .show_host_supported_classes = 1,
171 .show_host_port_id = 1,
172 .show_rport_supported_classes = 1,
173 .show_starget_node_name = 1,
174 .show_starget_port_name = 1,
175 .show_starget_port_id = 1,
176 .set_rport_dev_loss_tmo = mptfc_set_rport_loss_tmo,
177 .show_rport_dev_loss_tmo = 1,
178 .show_host_supported_speeds = 1,
179 .show_host_maxframe_size = 1,
180 .show_host_speed = 1,
181 .show_host_fabric_name = 1,
182 .show_host_port_type = 1,
183 .show_host_port_state = 1,
184 .show_host_symbolic_name = 1,
185 };
186
187 static int
188 mptfc_block_error_handler(struct scsi_cmnd *SCpnt,
189 int (*func)(struct scsi_cmnd *SCpnt),
190 const char *caller)
191 {
192 MPT_SCSI_HOST *hd;
193 struct scsi_device *sdev = SCpnt->device;
194 struct Scsi_Host *shost = sdev->host;
195 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
196 unsigned long flags;
197 int ready;
198 MPT_ADAPTER *ioc;
199 int loops = 40; /* seconds */
200
201 hd = shost_priv(SCpnt->device->host);
202 ioc = hd->ioc;
203 spin_lock_irqsave(shost->host_lock, flags);
204 while ((ready = fc_remote_port_chkready(rport) >> 16) == DID_IMM_RETRY
205 || (loops > 0 && ioc->active == 0)) {
206 spin_unlock_irqrestore(shost->host_lock, flags);
207 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
208 "mptfc_block_error_handler.%d: %d:%d, port status is "
209 "%x, active flag %d, deferring %s recovery.\n",
210 ioc->name, ioc->sh->host_no,
211 SCpnt->device->id, SCpnt->device->lun,
212 ready, ioc->active, caller));
213 msleep(1000);
214 spin_lock_irqsave(shost->host_lock, flags);
215 loops --;
216 }
217 spin_unlock_irqrestore(shost->host_lock, flags);
218
219 if (ready == DID_NO_CONNECT || !SCpnt->device->hostdata
220 || ioc->active == 0) {
221 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
222 "%s.%d: %d:%d, failing recovery, "
223 "port state %x, active %d, vdevice %p.\n", caller,
224 ioc->name, ioc->sh->host_no,
225 SCpnt->device->id, SCpnt->device->lun, ready,
226 ioc->active, SCpnt->device->hostdata));
227 return FAILED;
228 }
229 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
230 "%s.%d: %d:%d, executing recovery.\n", caller,
231 ioc->name, ioc->sh->host_no,
232 SCpnt->device->id, SCpnt->device->lun));
233 return (*func)(SCpnt);
234 }
235
236 static int
237 mptfc_abort(struct scsi_cmnd *SCpnt)
238 {
239 return
240 mptfc_block_error_handler(SCpnt, mptscsih_abort, __func__);
241 }
242
243 static int
244 mptfc_dev_reset(struct scsi_cmnd *SCpnt)
245 {
246 return
247 mptfc_block_error_handler(SCpnt, mptscsih_dev_reset, __func__);
248 }
249
250 static int
251 mptfc_bus_reset(struct scsi_cmnd *SCpnt)
252 {
253 return
254 mptfc_block_error_handler(SCpnt, mptscsih_bus_reset, __func__);
255 }
256
257 static int
258 mptfc_host_reset(struct scsi_cmnd *SCpnt)
259 {
260 return
261 mptfc_block_error_handler(SCpnt, mptscsih_host_reset, __func__);
262 }
263
264 static void
265 mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
266 {
267 if (timeout > 0)
268 rport->dev_loss_tmo = timeout;
269 else
270 rport->dev_loss_tmo = mptfc_dev_loss_tmo;
271 }
272
273 static int
274 mptfc_FcDevPage0_cmp_func(const void *a, const void *b)
275 {
276 FCDevicePage0_t **aa = (FCDevicePage0_t **)a;
277 FCDevicePage0_t **bb = (FCDevicePage0_t **)b;
278
279 if ((*aa)->CurrentBus == (*bb)->CurrentBus) {
280 if ((*aa)->CurrentTargetID == (*bb)->CurrentTargetID)
281 return 0;
282 if ((*aa)->CurrentTargetID < (*bb)->CurrentTargetID)
283 return -1;
284 return 1;
285 }
286 if ((*aa)->CurrentBus < (*bb)->CurrentBus)
287 return -1;
288 return 1;
289 }
290
291 static int
292 mptfc_GetFcDevPage0(MPT_ADAPTER *ioc, int ioc_port,
293 void(*func)(MPT_ADAPTER *ioc,int channel, FCDevicePage0_t *arg))
294 {
295 ConfigPageHeader_t hdr;
296 CONFIGPARMS cfg;
297 FCDevicePage0_t *ppage0_alloc, *fc;
298 dma_addr_t page0_dma;
299 int data_sz;
300 int ii;
301
302 FCDevicePage0_t *p0_array=NULL, *p_p0;
303 FCDevicePage0_t **pp0_array=NULL, **p_pp0;
304
305 int rc = -ENOMEM;
306 U32 port_id = 0xffffff;
307 int num_targ = 0;
308 int max_bus = ioc->facts.MaxBuses;
309 int max_targ;
310
311 max_targ = (ioc->facts.MaxDevices == 0) ? 256 : ioc->facts.MaxDevices;
312
313 data_sz = sizeof(FCDevicePage0_t) * max_bus * max_targ;
314 p_p0 = p0_array = kzalloc(data_sz, GFP_KERNEL);
315 if (!p0_array)
316 goto out;
317
318 data_sz = sizeof(FCDevicePage0_t *) * max_bus * max_targ;
319 p_pp0 = pp0_array = kzalloc(data_sz, GFP_KERNEL);
320 if (!pp0_array)
321 goto out;
322
323 do {
324 /* Get FC Device Page 0 header */
325 hdr.PageVersion = 0;
326 hdr.PageLength = 0;
327 hdr.PageNumber = 0;
328 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_DEVICE;
329 cfg.cfghdr.hdr = &hdr;
330 cfg.physAddr = -1;
331 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
332 cfg.dir = 0;
333 cfg.pageAddr = port_id;
334 cfg.timeout = 0;
335
336 if ((rc = mpt_config(ioc, &cfg)) != 0)
337 break;
338
339 if (hdr.PageLength <= 0)
340 break;
341
342 data_sz = hdr.PageLength * 4;
343 ppage0_alloc = pci_alloc_consistent(ioc->pcidev, data_sz,
344 &page0_dma);
345 rc = -ENOMEM;
346 if (!ppage0_alloc)
347 break;
348
349 cfg.physAddr = page0_dma;
350 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
351
352 if ((rc = mpt_config(ioc, &cfg)) == 0) {
353 ppage0_alloc->PortIdentifier =
354 le32_to_cpu(ppage0_alloc->PortIdentifier);
355
356 ppage0_alloc->WWNN.Low =
357 le32_to_cpu(ppage0_alloc->WWNN.Low);
358
359 ppage0_alloc->WWNN.High =
360 le32_to_cpu(ppage0_alloc->WWNN.High);
361
362 ppage0_alloc->WWPN.Low =
363 le32_to_cpu(ppage0_alloc->WWPN.Low);
364
365 ppage0_alloc->WWPN.High =
366 le32_to_cpu(ppage0_alloc->WWPN.High);
367
368 ppage0_alloc->BBCredit =
369 le16_to_cpu(ppage0_alloc->BBCredit);
370
371 ppage0_alloc->MaxRxFrameSize =
372 le16_to_cpu(ppage0_alloc->MaxRxFrameSize);
373
374 port_id = ppage0_alloc->PortIdentifier;
375 num_targ++;
376 *p_p0 = *ppage0_alloc; /* save data */
377 *p_pp0++ = p_p0++; /* save addr */
378 }
379 pci_free_consistent(ioc->pcidev, data_sz,
380 (u8 *) ppage0_alloc, page0_dma);
381 if (rc != 0)
382 break;
383
384 } while (port_id <= 0xff0000);
385
386 if (num_targ) {
387 /* sort array */
388 if (num_targ > 1)
389 sort (pp0_array, num_targ, sizeof(FCDevicePage0_t *),
390 mptfc_FcDevPage0_cmp_func, NULL);
391 /* call caller's func for each targ */
392 for (ii = 0; ii < num_targ; ii++) {
393 fc = *(pp0_array+ii);
394 func(ioc, ioc_port, fc);
395 }
396 }
397
398 out:
399 kfree(pp0_array);
400 kfree(p0_array);
401 return rc;
402 }
403
404 static int
405 mptfc_generate_rport_ids(FCDevicePage0_t *pg0, struct fc_rport_identifiers *rid)
406 {
407 /* not currently usable */
408 if (pg0->Flags & (MPI_FC_DEVICE_PAGE0_FLAGS_PLOGI_INVALID |
409 MPI_FC_DEVICE_PAGE0_FLAGS_PRLI_INVALID))
410 return -1;
411
412 if (!(pg0->Flags & MPI_FC_DEVICE_PAGE0_FLAGS_TARGETID_BUS_VALID))
413 return -1;
414
415 if (!(pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_TARGET))
416 return -1;
417
418 /*
419 * board data structure already normalized to platform endianness
420 * shifted to avoid unaligned access on 64 bit architecture
421 */
422 rid->node_name = ((u64)pg0->WWNN.High) << 32 | (u64)pg0->WWNN.Low;
423 rid->port_name = ((u64)pg0->WWPN.High) << 32 | (u64)pg0->WWPN.Low;
424 rid->port_id = pg0->PortIdentifier;
425 rid->roles = FC_RPORT_ROLE_UNKNOWN;
426
427 return 0;
428 }
429
430 static void
431 mptfc_register_dev(MPT_ADAPTER *ioc, int channel, FCDevicePage0_t *pg0)
432 {
433 struct fc_rport_identifiers rport_ids;
434 struct fc_rport *rport;
435 struct mptfc_rport_info *ri;
436 int new_ri = 1;
437 u64 pn, nn;
438 VirtTarget *vtarget;
439 u32 roles = FC_RPORT_ROLE_UNKNOWN;
440
441 if (mptfc_generate_rport_ids(pg0, &rport_ids) < 0)
442 return;
443
444 roles |= FC_RPORT_ROLE_FCP_TARGET;
445 if (pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_INITIATOR)
446 roles |= FC_RPORT_ROLE_FCP_INITIATOR;
447
448 /* scan list looking for a match */
449 list_for_each_entry(ri, &ioc->fc_rports, list) {
450 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
451 if (pn == rport_ids.port_name) { /* match */
452 list_move_tail(&ri->list, &ioc->fc_rports);
453 new_ri = 0;
454 break;
455 }
456 }
457 if (new_ri) { /* allocate one */
458 ri = kzalloc(sizeof(struct mptfc_rport_info), GFP_KERNEL);
459 if (!ri)
460 return;
461 list_add_tail(&ri->list, &ioc->fc_rports);
462 }
463
464 ri->pg0 = *pg0; /* add/update pg0 data */
465 ri->flags &= ~MPT_RPORT_INFO_FLAGS_MISSING;
466
467 /* MPT_RPORT_INFO_FLAGS_REGISTERED - rport not previously deleted */
468 if (!(ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED)) {
469 ri->flags |= MPT_RPORT_INFO_FLAGS_REGISTERED;
470 rport = fc_remote_port_add(ioc->sh, channel, &rport_ids);
471 if (rport) {
472 ri->rport = rport;
473 if (new_ri) /* may have been reset by user */
474 rport->dev_loss_tmo = mptfc_dev_loss_tmo;
475 /*
476 * if already mapped, remap here. If not mapped,
477 * target_alloc will allocate vtarget and map,
478 * slave_alloc will fill in vdevice from vtarget.
479 */
480 if (ri->starget) {
481 vtarget = ri->starget->hostdata;
482 if (vtarget) {
483 vtarget->id = pg0->CurrentTargetID;
484 vtarget->channel = pg0->CurrentBus;
485 }
486 }
487 *((struct mptfc_rport_info **)rport->dd_data) = ri;
488 /* scan will be scheduled once rport becomes a target */
489 fc_remote_port_rolechg(rport,roles);
490
491 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
492 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low;
493 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
494 "mptfc_reg_dev.%d: %x, %llx / %llx, tid %d, "
495 "rport tid %d, tmo %d\n",
496 ioc->name,
497 ioc->sh->host_no,
498 pg0->PortIdentifier,
499 (unsigned long long)nn,
500 (unsigned long long)pn,
501 pg0->CurrentTargetID,
502 ri->rport->scsi_target_id,
503 ri->rport->dev_loss_tmo));
504 } else {
505 list_del(&ri->list);
506 kfree(ri);
507 ri = NULL;
508 }
509 }
510 }
511
512 /*
513 * OS entry point to allow for host driver to free allocated memory
514 * Called if no device present or device being unloaded
515 */
516 static void
517 mptfc_target_destroy(struct scsi_target *starget)
518 {
519 struct fc_rport *rport;
520 struct mptfc_rport_info *ri;
521
522 rport = starget_to_rport(starget);
523 if (rport) {
524 ri = *((struct mptfc_rport_info **)rport->dd_data);
525 if (ri) /* better be! */
526 ri->starget = NULL;
527 }
528 if (starget->hostdata)
529 kfree(starget->hostdata);
530 starget->hostdata = NULL;
531 }
532
533 /*
534 * OS entry point to allow host driver to alloc memory
535 * for each scsi target. Called once per device the bus scan.
536 * Return non-zero if allocation fails.
537 */
538 static int
539 mptfc_target_alloc(struct scsi_target *starget)
540 {
541 VirtTarget *vtarget;
542 struct fc_rport *rport;
543 struct mptfc_rport_info *ri;
544 int rc;
545
546 vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL);
547 if (!vtarget)
548 return -ENOMEM;
549 starget->hostdata = vtarget;
550
551 rc = -ENODEV;
552 rport = starget_to_rport(starget);
553 if (rport) {
554 ri = *((struct mptfc_rport_info **)rport->dd_data);
555 if (ri) { /* better be! */
556 vtarget->id = ri->pg0.CurrentTargetID;
557 vtarget->channel = ri->pg0.CurrentBus;
558 ri->starget = starget;
559 rc = 0;
560 }
561 }
562 if (rc != 0) {
563 kfree(vtarget);
564 starget->hostdata = NULL;
565 }
566
567 return rc;
568 }
569 /*
570 * mptfc_dump_lun_info
571 * @ioc
572 * @rport
573 * @sdev
574 *
575 */
576 static void
577 mptfc_dump_lun_info(MPT_ADAPTER *ioc, struct fc_rport *rport, struct scsi_device *sdev,
578 VirtTarget *vtarget)
579 {
580 u64 nn, pn;
581 struct mptfc_rport_info *ri;
582
583 ri = *((struct mptfc_rport_info **)rport->dd_data);
584 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
585 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low;
586 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
587 "mptfc_slv_alloc.%d: num_luns %d, sdev.id %d, "
588 "CurrentTargetID %d, %x %llx %llx\n",
589 ioc->name,
590 sdev->host->host_no,
591 vtarget->num_luns,
592 sdev->id, ri->pg0.CurrentTargetID,
593 ri->pg0.PortIdentifier,
594 (unsigned long long)pn,
595 (unsigned long long)nn));
596 }
597
598
599 /*
600 * OS entry point to allow host driver to alloc memory
601 * for each scsi device. Called once per device the bus scan.
602 * Return non-zero if allocation fails.
603 * Init memory once per LUN.
604 */
605 static int
606 mptfc_slave_alloc(struct scsi_device *sdev)
607 {
608 MPT_SCSI_HOST *hd;
609 VirtTarget *vtarget;
610 VirtDevice *vdevice;
611 struct scsi_target *starget;
612 struct fc_rport *rport;
613 MPT_ADAPTER *ioc;
614
615 starget = scsi_target(sdev);
616 rport = starget_to_rport(starget);
617
618 if (!rport || fc_remote_port_chkready(rport))
619 return -ENXIO;
620
621 hd = shost_priv(sdev->host);
622 ioc = hd->ioc;
623
624 vdevice = kzalloc(sizeof(VirtDevice), GFP_KERNEL);
625 if (!vdevice) {
626 printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n",
627 ioc->name, sizeof(VirtDevice));
628 return -ENOMEM;
629 }
630
631
632 sdev->hostdata = vdevice;
633 vtarget = starget->hostdata;
634
635 if (vtarget->num_luns == 0) {
636 vtarget->ioc_id = ioc->id;
637 vtarget->tflags = MPT_TARGET_FLAGS_Q_YES;
638 }
639
640 vdevice->vtarget = vtarget;
641 vdevice->lun = sdev->lun;
642
643 vtarget->num_luns++;
644
645
646 mptfc_dump_lun_info(ioc, rport, sdev, vtarget);
647
648 return 0;
649 }
650
651 static int
652 mptfc_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
653 {
654 struct mptfc_rport_info *ri;
655 struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device));
656 int err;
657 VirtDevice *vdevice = SCpnt->device->hostdata;
658
659 if (!vdevice || !vdevice->vtarget) {
660 SCpnt->result = DID_NO_CONNECT << 16;
661 done(SCpnt);
662 return 0;
663 }
664
665 err = fc_remote_port_chkready(rport);
666 if (unlikely(err)) {
667 SCpnt->result = err;
668 done(SCpnt);
669 return 0;
670 }
671
672 /* dd_data is null until finished adding target */
673 ri = *((struct mptfc_rport_info **)rport->dd_data);
674 if (unlikely(!ri)) {
675 SCpnt->result = DID_IMM_RETRY << 16;
676 done(SCpnt);
677 return 0;
678 }
679
680 return mptscsih_qcmd(SCpnt,done);
681 }
682
683 /*
684 * mptfc_display_port_link_speed - displaying link speed
685 * @ioc: Pointer to MPT_ADAPTER structure
686 * @portnum: IOC Port number
687 * @pp0dest: port page0 data payload
688 *
689 */
690 static void
691 mptfc_display_port_link_speed(MPT_ADAPTER *ioc, int portnum, FCPortPage0_t *pp0dest)
692 {
693 u8 old_speed, new_speed, state;
694 char *old, *new;
695
696 if (portnum >= 2)
697 return;
698
699 old_speed = ioc->fc_link_speed[portnum];
700 new_speed = pp0dest->CurrentSpeed;
701 state = pp0dest->PortState;
702
703 if (state != MPI_FCPORTPAGE0_PORTSTATE_OFFLINE &&
704 new_speed != MPI_FCPORTPAGE0_CURRENT_SPEED_UKNOWN) {
705
706 old = old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" :
707 old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" :
708 old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" :
709 "Unknown";
710 new = new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" :
711 new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" :
712 new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" :
713 "Unknown";
714 if (old_speed == 0)
715 printk(MYIOC_s_NOTE_FMT
716 "FC Link Established, Speed = %s\n",
717 ioc->name, new);
718 else if (old_speed != new_speed)
719 printk(MYIOC_s_WARN_FMT
720 "FC Link Speed Change, Old Speed = %s, New Speed = %s\n",
721 ioc->name, old, new);
722
723 ioc->fc_link_speed[portnum] = new_speed;
724 }
725 }
726
727 /*
728 * mptfc_GetFcPortPage0 - Fetch FCPort config Page0.
729 * @ioc: Pointer to MPT_ADAPTER structure
730 * @portnum: IOC Port number
731 *
732 * Return: 0 for success
733 * -ENOMEM if no memory available
734 * -EPERM if not allowed due to ISR context
735 * -EAGAIN if no msg frames currently available
736 * -EFAULT for non-successful reply or no reply (timeout)
737 * -EINVAL portnum arg out of range (hardwired to two elements)
738 */
739 static int
740 mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum)
741 {
742 ConfigPageHeader_t hdr;
743 CONFIGPARMS cfg;
744 FCPortPage0_t *ppage0_alloc;
745 FCPortPage0_t *pp0dest;
746 dma_addr_t page0_dma;
747 int data_sz;
748 int copy_sz;
749 int rc;
750 int count = 400;
751
752 if (portnum > 1)
753 return -EINVAL;
754
755 /* Get FCPort Page 0 header */
756 hdr.PageVersion = 0;
757 hdr.PageLength = 0;
758 hdr.PageNumber = 0;
759 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
760 cfg.cfghdr.hdr = &hdr;
761 cfg.physAddr = -1;
762 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
763 cfg.dir = 0;
764 cfg.pageAddr = portnum;
765 cfg.timeout = 0;
766
767 if ((rc = mpt_config(ioc, &cfg)) != 0)
768 return rc;
769
770 if (hdr.PageLength == 0)
771 return 0;
772
773 data_sz = hdr.PageLength * 4;
774 rc = -ENOMEM;
775 ppage0_alloc = (FCPortPage0_t *) pci_alloc_consistent(ioc->pcidev, data_sz, &page0_dma);
776 if (ppage0_alloc) {
777
778 try_again:
779 memset((u8 *)ppage0_alloc, 0, data_sz);
780 cfg.physAddr = page0_dma;
781 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
782
783 if ((rc = mpt_config(ioc, &cfg)) == 0) {
784 /* save the data */
785 pp0dest = &ioc->fc_port_page0[portnum];
786 copy_sz = min_t(int, sizeof(FCPortPage0_t), data_sz);
787 memcpy(pp0dest, ppage0_alloc, copy_sz);
788
789 /*
790 * Normalize endianness of structure data,
791 * by byte-swapping all > 1 byte fields!
792 */
793 pp0dest->Flags = le32_to_cpu(pp0dest->Flags);
794 pp0dest->PortIdentifier = le32_to_cpu(pp0dest->PortIdentifier);
795 pp0dest->WWNN.Low = le32_to_cpu(pp0dest->WWNN.Low);
796 pp0dest->WWNN.High = le32_to_cpu(pp0dest->WWNN.High);
797 pp0dest->WWPN.Low = le32_to_cpu(pp0dest->WWPN.Low);
798 pp0dest->WWPN.High = le32_to_cpu(pp0dest->WWPN.High);
799 pp0dest->SupportedServiceClass = le32_to_cpu(pp0dest->SupportedServiceClass);
800 pp0dest->SupportedSpeeds = le32_to_cpu(pp0dest->SupportedSpeeds);
801 pp0dest->CurrentSpeed = le32_to_cpu(pp0dest->CurrentSpeed);
802 pp0dest->MaxFrameSize = le32_to_cpu(pp0dest->MaxFrameSize);
803 pp0dest->FabricWWNN.Low = le32_to_cpu(pp0dest->FabricWWNN.Low);
804 pp0dest->FabricWWNN.High = le32_to_cpu(pp0dest->FabricWWNN.High);
805 pp0dest->FabricWWPN.Low = le32_to_cpu(pp0dest->FabricWWPN.Low);
806 pp0dest->FabricWWPN.High = le32_to_cpu(pp0dest->FabricWWPN.High);
807 pp0dest->DiscoveredPortsCount = le32_to_cpu(pp0dest->DiscoveredPortsCount);
808 pp0dest->MaxInitiators = le32_to_cpu(pp0dest->MaxInitiators);
809
810 /*
811 * if still doing discovery,
812 * hang loose a while until finished
813 */
814 if ((pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) ||
815 (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE &&
816 (pp0dest->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_TYPE_MASK)
817 == MPI_FCPORTPAGE0_FLAGS_ATTACH_NO_INIT)) {
818 if (count-- > 0) {
819 msleep(100);
820 goto try_again;
821 }
822 printk(MYIOC_s_INFO_FMT "Firmware discovery not"
823 " complete.\n",
824 ioc->name);
825 }
826 mptfc_display_port_link_speed(ioc, portnum, pp0dest);
827 }
828
829 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) ppage0_alloc, page0_dma);
830 }
831
832 return rc;
833 }
834
835 static int
836 mptfc_WriteFcPortPage1(MPT_ADAPTER *ioc, int portnum)
837 {
838 ConfigPageHeader_t hdr;
839 CONFIGPARMS cfg;
840 int rc;
841
842 if (portnum > 1)
843 return -EINVAL;
844
845 if (!(ioc->fc_data.fc_port_page1[portnum].data))
846 return -EINVAL;
847
848 /* get fcport page 1 header */
849 hdr.PageVersion = 0;
850 hdr.PageLength = 0;
851 hdr.PageNumber = 1;
852 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
853 cfg.cfghdr.hdr = &hdr;
854 cfg.physAddr = -1;
855 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
856 cfg.dir = 0;
857 cfg.pageAddr = portnum;
858 cfg.timeout = 0;
859
860 if ((rc = mpt_config(ioc, &cfg)) != 0)
861 return rc;
862
863 if (hdr.PageLength == 0)
864 return -ENODEV;
865
866 if (hdr.PageLength*4 != ioc->fc_data.fc_port_page1[portnum].pg_sz)
867 return -EINVAL;
868
869 cfg.physAddr = ioc->fc_data.fc_port_page1[portnum].dma;
870 cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT;
871 cfg.dir = 1;
872
873 rc = mpt_config(ioc, &cfg);
874
875 return rc;
876 }
877
878 static int
879 mptfc_GetFcPortPage1(MPT_ADAPTER *ioc, int portnum)
880 {
881 ConfigPageHeader_t hdr;
882 CONFIGPARMS cfg;
883 FCPortPage1_t *page1_alloc;
884 dma_addr_t page1_dma;
885 int data_sz;
886 int rc;
887
888 if (portnum > 1)
889 return -EINVAL;
890
891 /* get fcport page 1 header */
892 hdr.PageVersion = 0;
893 hdr.PageLength = 0;
894 hdr.PageNumber = 1;
895 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
896 cfg.cfghdr.hdr = &hdr;
897 cfg.physAddr = -1;
898 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
899 cfg.dir = 0;
900 cfg.pageAddr = portnum;
901 cfg.timeout = 0;
902
903 if ((rc = mpt_config(ioc, &cfg)) != 0)
904 return rc;
905
906 if (hdr.PageLength == 0)
907 return -ENODEV;
908
909 start_over:
910
911 if (ioc->fc_data.fc_port_page1[portnum].data == NULL) {
912 data_sz = hdr.PageLength * 4;
913 if (data_sz < sizeof(FCPortPage1_t))
914 data_sz = sizeof(FCPortPage1_t);
915
916 page1_alloc = (FCPortPage1_t *) pci_alloc_consistent(ioc->pcidev,
917 data_sz,
918 &page1_dma);
919 if (!page1_alloc)
920 return -ENOMEM;
921 }
922 else {
923 page1_alloc = ioc->fc_data.fc_port_page1[portnum].data;
924 page1_dma = ioc->fc_data.fc_port_page1[portnum].dma;
925 data_sz = ioc->fc_data.fc_port_page1[portnum].pg_sz;
926 if (hdr.PageLength * 4 > data_sz) {
927 ioc->fc_data.fc_port_page1[portnum].data = NULL;
928 pci_free_consistent(ioc->pcidev, data_sz, (u8 *)
929 page1_alloc, page1_dma);
930 goto start_over;
931 }
932 }
933
934 memset(page1_alloc,0,data_sz);
935
936 cfg.physAddr = page1_dma;
937 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
938
939 if ((rc = mpt_config(ioc, &cfg)) == 0) {
940 ioc->fc_data.fc_port_page1[portnum].data = page1_alloc;
941 ioc->fc_data.fc_port_page1[portnum].pg_sz = data_sz;
942 ioc->fc_data.fc_port_page1[portnum].dma = page1_dma;
943 }
944 else {
945 ioc->fc_data.fc_port_page1[portnum].data = NULL;
946 pci_free_consistent(ioc->pcidev, data_sz, (u8 *)
947 page1_alloc, page1_dma);
948 }
949
950 return rc;
951 }
952
953 static void
954 mptfc_SetFcPortPage1_defaults(MPT_ADAPTER *ioc)
955 {
956 int ii;
957 FCPortPage1_t *pp1;
958
959 #define MPTFC_FW_DEVICE_TIMEOUT (1)
960 #define MPTFC_FW_IO_PEND_TIMEOUT (1)
961 #define ON_FLAGS (MPI_FCPORTPAGE1_FLAGS_IMMEDIATE_ERROR_REPLY)
962 #define OFF_FLAGS (MPI_FCPORTPAGE1_FLAGS_VERBOSE_RESCAN_EVENTS)
963
964 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) {
965 if (mptfc_GetFcPortPage1(ioc, ii) != 0)
966 continue;
967 pp1 = ioc->fc_data.fc_port_page1[ii].data;
968 if ((pp1->InitiatorDeviceTimeout == MPTFC_FW_DEVICE_TIMEOUT)
969 && (pp1->InitiatorIoPendTimeout == MPTFC_FW_IO_PEND_TIMEOUT)
970 && ((pp1->Flags & ON_FLAGS) == ON_FLAGS)
971 && ((pp1->Flags & OFF_FLAGS) == 0))
972 continue;
973 pp1->InitiatorDeviceTimeout = MPTFC_FW_DEVICE_TIMEOUT;
974 pp1->InitiatorIoPendTimeout = MPTFC_FW_IO_PEND_TIMEOUT;
975 pp1->Flags &= ~OFF_FLAGS;
976 pp1->Flags |= ON_FLAGS;
977 mptfc_WriteFcPortPage1(ioc, ii);
978 }
979 }
980
981
982 static void
983 mptfc_init_host_attr(MPT_ADAPTER *ioc,int portnum)
984 {
985 unsigned class = 0;
986 unsigned cos = 0;
987 unsigned speed;
988 unsigned port_type;
989 unsigned port_state;
990 FCPortPage0_t *pp0;
991 struct Scsi_Host *sh;
992 char *sn;
993
994 /* don't know what to do as only one scsi (fc) host was allocated */
995 if (portnum != 0)
996 return;
997
998 pp0 = &ioc->fc_port_page0[portnum];
999 sh = ioc->sh;
1000
1001 sn = fc_host_symbolic_name(sh);
1002 snprintf(sn, FC_SYMBOLIC_NAME_SIZE, "%s %s%08xh",
1003 ioc->prod_name,
1004 MPT_FW_REV_MAGIC_ID_STRING,
1005 ioc->facts.FWVersion.Word);
1006
1007 fc_host_tgtid_bind_type(sh) = FC_TGTID_BIND_BY_WWPN;
1008
1009 fc_host_maxframe_size(sh) = pp0->MaxFrameSize;
1010
1011 fc_host_node_name(sh) =
1012 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low;
1013
1014 fc_host_port_name(sh) =
1015 (u64)pp0->WWPN.High << 32 | (u64)pp0->WWPN.Low;
1016
1017 fc_host_port_id(sh) = pp0->PortIdentifier;
1018
1019 class = pp0->SupportedServiceClass;
1020 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_1)
1021 cos |= FC_COS_CLASS1;
1022 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_2)
1023 cos |= FC_COS_CLASS2;
1024 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_3)
1025 cos |= FC_COS_CLASS3;
1026 fc_host_supported_classes(sh) = cos;
1027
1028 if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT)
1029 speed = FC_PORTSPEED_1GBIT;
1030 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT)
1031 speed = FC_PORTSPEED_2GBIT;
1032 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT)
1033 speed = FC_PORTSPEED_4GBIT;
1034 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_10GBIT)
1035 speed = FC_PORTSPEED_10GBIT;
1036 else
1037 speed = FC_PORTSPEED_UNKNOWN;
1038 fc_host_speed(sh) = speed;
1039
1040 speed = 0;
1041 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_1GBIT_SPEED)
1042 speed |= FC_PORTSPEED_1GBIT;
1043 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_2GBIT_SPEED)
1044 speed |= FC_PORTSPEED_2GBIT;
1045 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_4GBIT_SPEED)
1046 speed |= FC_PORTSPEED_4GBIT;
1047 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_10GBIT_SPEED)
1048 speed |= FC_PORTSPEED_10GBIT;
1049 fc_host_supported_speeds(sh) = speed;
1050
1051 port_state = FC_PORTSTATE_UNKNOWN;
1052 if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE)
1053 port_state = FC_PORTSTATE_ONLINE;
1054 else if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_OFFLINE)
1055 port_state = FC_PORTSTATE_LINKDOWN;
1056 fc_host_port_state(sh) = port_state;
1057
1058 port_type = FC_PORTTYPE_UNKNOWN;
1059 if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_POINT_TO_POINT)
1060 port_type = FC_PORTTYPE_PTP;
1061 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PRIVATE_LOOP)
1062 port_type = FC_PORTTYPE_LPORT;
1063 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PUBLIC_LOOP)
1064 port_type = FC_PORTTYPE_NLPORT;
1065 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_FABRIC_DIRECT)
1066 port_type = FC_PORTTYPE_NPORT;
1067 fc_host_port_type(sh) = port_type;
1068
1069 fc_host_fabric_name(sh) =
1070 (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_FABRIC_WWN_VALID) ?
1071 (u64) pp0->FabricWWNN.High << 32 | (u64) pp0->FabricWWPN.Low :
1072 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low;
1073
1074 }
1075
1076 static void
1077 mptfc_link_status_change(struct work_struct *work)
1078 {
1079 MPT_ADAPTER *ioc =
1080 container_of(work, MPT_ADAPTER, fc_rescan_work);
1081 int ii;
1082
1083 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++)
1084 (void) mptfc_GetFcPortPage0(ioc, ii);
1085
1086 }
1087
1088 static void
1089 mptfc_setup_reset(struct work_struct *work)
1090 {
1091 MPT_ADAPTER *ioc =
1092 container_of(work, MPT_ADAPTER, fc_setup_reset_work);
1093 u64 pn;
1094 struct mptfc_rport_info *ri;
1095
1096 /* reset about to happen, delete (block) all rports */
1097 list_for_each_entry(ri, &ioc->fc_rports, list) {
1098 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) {
1099 ri->flags &= ~MPT_RPORT_INFO_FLAGS_REGISTERED;
1100 fc_remote_port_delete(ri->rport); /* won't sleep */
1101 ri->rport = NULL;
1102
1103 pn = (u64)ri->pg0.WWPN.High << 32 |
1104 (u64)ri->pg0.WWPN.Low;
1105 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
1106 "mptfc_setup_reset.%d: %llx deleted\n",
1107 ioc->name,
1108 ioc->sh->host_no,
1109 (unsigned long long)pn));
1110 }
1111 }
1112 }
1113
1114 static void
1115 mptfc_rescan_devices(struct work_struct *work)
1116 {
1117 MPT_ADAPTER *ioc =
1118 container_of(work, MPT_ADAPTER, fc_rescan_work);
1119 int ii;
1120 u64 pn;
1121 struct mptfc_rport_info *ri;
1122
1123 /* start by tagging all ports as missing */
1124 list_for_each_entry(ri, &ioc->fc_rports, list) {
1125 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) {
1126 ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING;
1127 }
1128 }
1129
1130 /*
1131 * now rescan devices known to adapter,
1132 * will reregister existing rports
1133 */
1134 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1135 (void) mptfc_GetFcPortPage0(ioc, ii);
1136 mptfc_init_host_attr(ioc, ii); /* refresh */
1137 mptfc_GetFcDevPage0(ioc, ii, mptfc_register_dev);
1138 }
1139
1140 /* delete devices still missing */
1141 list_for_each_entry(ri, &ioc->fc_rports, list) {
1142 /* if newly missing, delete it */
1143 if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) {
1144
1145 ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED|
1146 MPT_RPORT_INFO_FLAGS_MISSING);
1147 fc_remote_port_delete(ri->rport); /* won't sleep */
1148 ri->rport = NULL;
1149
1150 pn = (u64)ri->pg0.WWPN.High << 32 |
1151 (u64)ri->pg0.WWPN.Low;
1152 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
1153 "mptfc_rescan.%d: %llx deleted\n",
1154 ioc->name,
1155 ioc->sh->host_no,
1156 (unsigned long long)pn));
1157 }
1158 }
1159 }
1160
1161 static int
1162 mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id)
1163 {
1164 struct Scsi_Host *sh;
1165 MPT_SCSI_HOST *hd;
1166 MPT_ADAPTER *ioc;
1167 unsigned long flags;
1168 int ii;
1169 int numSGE = 0;
1170 int scale;
1171 int ioc_cap;
1172 int error=0;
1173 int r;
1174
1175 if ((r = mpt_attach(pdev,id)) != 0)
1176 return r;
1177
1178 ioc = pci_get_drvdata(pdev);
1179 ioc->DoneCtx = mptfcDoneCtx;
1180 ioc->TaskCtx = mptfcTaskCtx;
1181 ioc->InternalCtx = mptfcInternalCtx;
1182
1183 /* Added sanity check on readiness of the MPT adapter.
1184 */
1185 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) {
1186 printk(MYIOC_s_WARN_FMT
1187 "Skipping because it's not operational!\n",
1188 ioc->name);
1189 error = -ENODEV;
1190 goto out_mptfc_probe;
1191 }
1192
1193 if (!ioc->active) {
1194 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n",
1195 ioc->name);
1196 error = -ENODEV;
1197 goto out_mptfc_probe;
1198 }
1199
1200 /* Sanity check - ensure at least 1 port is INITIATOR capable
1201 */
1202 ioc_cap = 0;
1203 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1204 if (ioc->pfacts[ii].ProtocolFlags &
1205 MPI_PORTFACTS_PROTOCOL_INITIATOR)
1206 ioc_cap ++;
1207 }
1208
1209 if (!ioc_cap) {
1210 printk(MYIOC_s_WARN_FMT
1211 "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n",
1212 ioc->name, ioc);
1213 return 0;
1214 }
1215
1216 sh = scsi_host_alloc(&mptfc_driver_template, sizeof(MPT_SCSI_HOST));
1217
1218 if (!sh) {
1219 printk(MYIOC_s_WARN_FMT
1220 "Unable to register controller with SCSI subsystem\n",
1221 ioc->name);
1222 error = -1;
1223 goto out_mptfc_probe;
1224 }
1225
1226 spin_lock_init(&ioc->fc_rescan_work_lock);
1227 INIT_WORK(&ioc->fc_rescan_work, mptfc_rescan_devices);
1228 INIT_WORK(&ioc->fc_setup_reset_work, mptfc_setup_reset);
1229 INIT_WORK(&ioc->fc_lsc_work, mptfc_link_status_change);
1230
1231 spin_lock_irqsave(&ioc->FreeQlock, flags);
1232
1233 /* Attach the SCSI Host to the IOC structure
1234 */
1235 ioc->sh = sh;
1236
1237 sh->io_port = 0;
1238 sh->n_io_port = 0;
1239 sh->irq = 0;
1240
1241 /* set 16 byte cdb's */
1242 sh->max_cmd_len = 16;
1243
1244 sh->max_id = ioc->pfacts->MaxDevices;
1245 sh->max_lun = max_lun;
1246
1247 /* Required entry.
1248 */
1249 sh->unique_id = ioc->id;
1250
1251 /* Verify that we won't exceed the maximum
1252 * number of chain buffers
1253 * We can optimize: ZZ = req_sz/sizeof(SGE)
1254 * For 32bit SGE's:
1255 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ
1256 * + (req_sz - 64)/sizeof(SGE)
1257 * A slightly different algorithm is required for
1258 * 64bit SGEs.
1259 */
1260 scale = ioc->req_sz/ioc->SGE_size;
1261 if (ioc->sg_addr_size == sizeof(u64)) {
1262 numSGE = (scale - 1) *
1263 (ioc->facts.MaxChainDepth-1) + scale +
1264 (ioc->req_sz - 60) / ioc->SGE_size;
1265 } else {
1266 numSGE = 1 + (scale - 1) *
1267 (ioc->facts.MaxChainDepth-1) + scale +
1268 (ioc->req_sz - 64) / ioc->SGE_size;
1269 }
1270
1271 if (numSGE < sh->sg_tablesize) {
1272 /* Reset this value */
1273 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1274 "Resetting sg_tablesize to %d from %d\n",
1275 ioc->name, numSGE, sh->sg_tablesize));
1276 sh->sg_tablesize = numSGE;
1277 }
1278
1279 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1280
1281 hd = shost_priv(sh);
1282 hd->ioc = ioc;
1283
1284 /* SCSI needs scsi_cmnd lookup table!
1285 * (with size equal to req_depth*PtrSz!)
1286 */
1287 ioc->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC);
1288 if (!ioc->ScsiLookup) {
1289 error = -ENOMEM;
1290 goto out_mptfc_probe;
1291 }
1292 spin_lock_init(&ioc->scsi_lookup_lock);
1293
1294 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScsiLookup @ %p\n",
1295 ioc->name, ioc->ScsiLookup));
1296
1297 hd->last_queue_full = 0;
1298
1299 sh->transportt = mptfc_transport_template;
1300 error = scsi_add_host (sh, &ioc->pcidev->dev);
1301 if(error) {
1302 dprintk(ioc, printk(MYIOC_s_ERR_FMT
1303 "scsi_add_host failed\n", ioc->name));
1304 goto out_mptfc_probe;
1305 }
1306
1307 /* initialize workqueue */
1308
1309 snprintf(ioc->fc_rescan_work_q_name, sizeof(ioc->fc_rescan_work_q_name),
1310 "mptfc_wq_%d", sh->host_no);
1311 ioc->fc_rescan_work_q =
1312 create_singlethread_workqueue(ioc->fc_rescan_work_q_name);
1313 if (!ioc->fc_rescan_work_q)
1314 goto out_mptfc_probe;
1315
1316 /*
1317 * Pre-fetch FC port WWN and stuff...
1318 * (FCPortPage0_t stuff)
1319 */
1320 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1321 (void) mptfc_GetFcPortPage0(ioc, ii);
1322 }
1323 mptfc_SetFcPortPage1_defaults(ioc);
1324
1325 /*
1326 * scan for rports -
1327 * by doing it via the workqueue, some locking is eliminated
1328 */
1329
1330 queue_work(ioc->fc_rescan_work_q, &ioc->fc_rescan_work);
1331 flush_workqueue(ioc->fc_rescan_work_q);
1332
1333 return 0;
1334
1335 out_mptfc_probe:
1336
1337 mptscsih_remove(pdev);
1338 return error;
1339 }
1340
1341 static struct pci_driver mptfc_driver = {
1342 .name = "mptfc",
1343 .id_table = mptfc_pci_table,
1344 .probe = mptfc_probe,
1345 .remove = __devexit_p(mptfc_remove),
1346 .shutdown = mptscsih_shutdown,
1347 #ifdef CONFIG_PM
1348 .suspend = mptscsih_suspend,
1349 .resume = mptscsih_resume,
1350 #endif
1351 };
1352
1353 static int
1354 mptfc_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
1355 {
1356 MPT_SCSI_HOST *hd;
1357 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
1358 unsigned long flags;
1359 int rc=1;
1360
1361 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n",
1362 ioc->name, event));
1363
1364 if (ioc->sh == NULL ||
1365 ((hd = shost_priv(ioc->sh)) == NULL))
1366 return 1;
1367
1368 switch (event) {
1369 case MPI_EVENT_RESCAN:
1370 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1371 if (ioc->fc_rescan_work_q) {
1372 queue_work(ioc->fc_rescan_work_q,
1373 &ioc->fc_rescan_work);
1374 }
1375 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1376 break;
1377 case MPI_EVENT_LINK_STATUS_CHANGE:
1378 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1379 if (ioc->fc_rescan_work_q) {
1380 queue_work(ioc->fc_rescan_work_q,
1381 &ioc->fc_lsc_work);
1382 }
1383 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1384 break;
1385 default:
1386 rc = mptscsih_event_process(ioc,pEvReply);
1387 break;
1388 }
1389 return rc;
1390 }
1391
1392 static int
1393 mptfc_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
1394 {
1395 int rc;
1396 unsigned long flags;
1397
1398 rc = mptscsih_ioc_reset(ioc,reset_phase);
1399 if (rc == 0)
1400 return rc;
1401
1402
1403 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1404 ": IOC %s_reset routed to FC host driver!\n",ioc->name,
1405 reset_phase==MPT_IOC_SETUP_RESET ? "setup" : (
1406 reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post")));
1407
1408 if (reset_phase == MPT_IOC_SETUP_RESET) {
1409 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1410 if (ioc->fc_rescan_work_q) {
1411 queue_work(ioc->fc_rescan_work_q,
1412 &ioc->fc_setup_reset_work);
1413 }
1414 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1415 }
1416
1417 else if (reset_phase == MPT_IOC_PRE_RESET) {
1418 }
1419
1420 else { /* MPT_IOC_POST_RESET */
1421 mptfc_SetFcPortPage1_defaults(ioc);
1422 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1423 if (ioc->fc_rescan_work_q) {
1424 queue_work(ioc->fc_rescan_work_q,
1425 &ioc->fc_rescan_work);
1426 }
1427 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1428 }
1429 return 1;
1430 }
1431
1432 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1433 /**
1434 * mptfc_init - Register MPT adapter(s) as SCSI host(s) with SCSI mid-layer.
1435 *
1436 * Returns 0 for success, non-zero for failure.
1437 */
1438 static int __init
1439 mptfc_init(void)
1440 {
1441 int error;
1442
1443 show_mptmod_ver(my_NAME, my_VERSION);
1444
1445 /* sanity check module parameters */
1446 if (mptfc_dev_loss_tmo <= 0)
1447 mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO;
1448
1449 mptfc_transport_template =
1450 fc_attach_transport(&mptfc_transport_functions);
1451
1452 if (!mptfc_transport_template)
1453 return -ENODEV;
1454
1455 mptfcDoneCtx = mpt_register(mptscsih_io_done, MPTFC_DRIVER);
1456 mptfcTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTFC_DRIVER);
1457 mptfcInternalCtx = mpt_register(mptscsih_scandv_complete, MPTFC_DRIVER);
1458
1459 mpt_event_register(mptfcDoneCtx, mptfc_event_process);
1460 mpt_reset_register(mptfcDoneCtx, mptfc_ioc_reset);
1461
1462 error = pci_register_driver(&mptfc_driver);
1463 if (error)
1464 fc_release_transport(mptfc_transport_template);
1465
1466 return error;
1467 }
1468
1469 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1470 /**
1471 * mptfc_remove - Remove fc infrastructure for devices
1472 * @pdev: Pointer to pci_dev structure
1473 *
1474 */
1475 static void __devexit
1476 mptfc_remove(struct pci_dev *pdev)
1477 {
1478 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1479 struct mptfc_rport_info *p, *n;
1480 struct workqueue_struct *work_q;
1481 unsigned long flags;
1482 int ii;
1483
1484 /* destroy workqueue */
1485 if ((work_q=ioc->fc_rescan_work_q)) {
1486 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1487 ioc->fc_rescan_work_q = NULL;
1488 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1489 destroy_workqueue(work_q);
1490 }
1491
1492 fc_remove_host(ioc->sh);
1493
1494 list_for_each_entry_safe(p, n, &ioc->fc_rports, list) {
1495 list_del(&p->list);
1496 kfree(p);
1497 }
1498
1499 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) {
1500 if (ioc->fc_data.fc_port_page1[ii].data) {
1501 pci_free_consistent(ioc->pcidev,
1502 ioc->fc_data.fc_port_page1[ii].pg_sz,
1503 (u8 *) ioc->fc_data.fc_port_page1[ii].data,
1504 ioc->fc_data.fc_port_page1[ii].dma);
1505 ioc->fc_data.fc_port_page1[ii].data = NULL;
1506 }
1507 }
1508
1509 mptscsih_remove(pdev);
1510 }
1511
1512 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1513 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1514 /**
1515 * mptfc_exit - Unregisters MPT adapter(s)
1516 *
1517 */
1518 static void __exit
1519 mptfc_exit(void)
1520 {
1521 pci_unregister_driver(&mptfc_driver);
1522 fc_release_transport(mptfc_transport_template);
1523
1524 mpt_reset_deregister(mptfcDoneCtx);
1525 mpt_event_deregister(mptfcDoneCtx);
1526
1527 mpt_deregister(mptfcInternalCtx);
1528 mpt_deregister(mptfcTaskCtx);
1529 mpt_deregister(mptfcDoneCtx);
1530 }
1531
1532 module_init(mptfc_init);
1533 module_exit(mptfc_exit);
kernel source for telekom puls (alcatel/mediatek)