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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>
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
74MODULE_AUTHOR(MODULEAUTHOR);
75MODULE_DESCRIPTION(my_NAME);
76MODULE_LICENSE("GPL");
77MODULE_VERSION(my_VERSION);
78
79/* Command line args */
80#define MPTFC_DEV_LOSS_TMO (60)
81static int mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO; /* reasonable default */
82module_param(mptfc_dev_loss_tmo, int, 0);
83MODULE_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)
90static int max_lun = MPTFC_MAX_LUN;
91module_param(max_lun, int, 0);
92MODULE_PARM_DESC(max_lun, " max lun, default=16895 ");
93
94static u8 mptfcDoneCtx = MPT_MAX_PROTOCOL_DRIVERS;
95static u8 mptfcTaskCtx = MPT_MAX_PROTOCOL_DRIVERS;
96static u8 mptfcInternalCtx = MPT_MAX_PROTOCOL_DRIVERS;
97
98static int mptfc_target_alloc(struct scsi_target *starget);
99static int mptfc_slave_alloc(struct scsi_device *sdev);
100static int mptfc_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *SCpnt);
101static void mptfc_target_destroy(struct scsi_target *starget);
102static void mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout);
103static void mptfc_remove(struct pci_dev *pdev);
104static int mptfc_abort(struct scsi_cmnd *SCpnt);
105static int mptfc_dev_reset(struct scsi_cmnd *SCpnt);
106static int mptfc_bus_reset(struct scsi_cmnd *SCpnt);
107
108static const struct scsi_host_template mptfc_driver_template = {
109 .module = THIS_MODULE,
110 .proc_name = "mptfc",
111 .show_info = mptscsih_show_info,
112 .name = "MPT FC Host",
113 .info = mptscsih_info,
114 .queuecommand = mptfc_qcmd,
115 .target_alloc = mptfc_target_alloc,
116 .slave_alloc = mptfc_slave_alloc,
117 .slave_configure = mptscsih_slave_configure,
118 .target_destroy = mptfc_target_destroy,
119 .slave_destroy = mptscsih_slave_destroy,
120 .change_queue_depth = mptscsih_change_queue_depth,
121 .eh_timed_out = fc_eh_timed_out,
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 = mptscsih_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 .shost_groups = mptscsih_host_attr_groups,
133};
134
135/****************************************************************************
136 * Supported hardware
137 */
138
139static struct pci_device_id mptfc_pci_table[] = {
140 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC909,
141 PCI_ANY_ID, PCI_ANY_ID },
142 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC919,
143 PCI_ANY_ID, PCI_ANY_ID },
144 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC929,
145 PCI_ANY_ID, PCI_ANY_ID },
146 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC919X,
147 PCI_ANY_ID, PCI_ANY_ID },
148 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC929X,
149 PCI_ANY_ID, PCI_ANY_ID },
150 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC939X,
151 PCI_ANY_ID, PCI_ANY_ID },
152 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC949X,
153 PCI_ANY_ID, PCI_ANY_ID },
154 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC949E,
155 PCI_ANY_ID, PCI_ANY_ID },
156 { PCI_VENDOR_ID_BROCADE, MPI_MANUFACTPAGE_DEVICEID_FC949E,
157 PCI_ANY_ID, PCI_ANY_ID },
158 {0} /* Terminating entry */
159};
160MODULE_DEVICE_TABLE(pci, mptfc_pci_table);
161
162static struct scsi_transport_template *mptfc_transport_template = NULL;
163
164static struct fc_function_template mptfc_transport_functions = {
165 .dd_fcrport_size = 8,
166 .show_host_node_name = 1,
167 .show_host_port_name = 1,
168 .show_host_supported_classes = 1,
169 .show_host_port_id = 1,
170 .show_rport_supported_classes = 1,
171 .show_starget_node_name = 1,
172 .show_starget_port_name = 1,
173 .show_starget_port_id = 1,
174 .set_rport_dev_loss_tmo = mptfc_set_rport_loss_tmo,
175 .show_rport_dev_loss_tmo = 1,
176 .show_host_supported_speeds = 1,
177 .show_host_maxframe_size = 1,
178 .show_host_speed = 1,
179 .show_host_fabric_name = 1,
180 .show_host_port_type = 1,
181 .show_host_port_state = 1,
182 .show_host_symbolic_name = 1,
183};
184
185static int
186mptfc_block_error_handler(struct fc_rport *rport)
187{
188 MPT_SCSI_HOST *hd;
189 struct Scsi_Host *shost = rport_to_shost(rport);
190 unsigned long flags;
191 int ready;
192 MPT_ADAPTER *ioc;
193 int loops = 40; /* seconds */
194
195 hd = shost_priv(shost);
196 ioc = hd->ioc;
197 spin_lock_irqsave(shost->host_lock, flags);
198 while ((ready = fc_remote_port_chkready(rport) >> 16) == DID_IMM_RETRY
199 || (loops > 0 && ioc->active == 0)) {
200 spin_unlock_irqrestore(shost->host_lock, flags);
201 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
202 "mptfc_block_error_handler.%d: %s, port status is "
203 "%x, active flag %d, deferring recovery.\n",
204 ioc->name, ioc->sh->host_no,
205 dev_name(&rport->dev), ready, ioc->active));
206 msleep(1000);
207 spin_lock_irqsave(shost->host_lock, flags);
208 loops --;
209 }
210 spin_unlock_irqrestore(shost->host_lock, flags);
211
212 if (ready == DID_NO_CONNECT || ioc->active == 0) {
213 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
214 "mpt_block_error_handler.%d: %s, failing recovery, "
215 "port state %x, active %d.\n",
216 ioc->name, ioc->sh->host_no,
217 dev_name(&rport->dev), ready, ioc->active));
218 return FAILED;
219 }
220 return SUCCESS;
221}
222
223static int
224mptfc_abort(struct scsi_cmnd *SCpnt)
225{
226 struct Scsi_Host *shost = SCpnt->device->host;
227 struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device));
228 MPT_SCSI_HOST __maybe_unused *hd = shost_priv(shost);
229 int rtn;
230
231 rtn = mptfc_block_error_handler(rport);
232 if (rtn == SUCCESS) {
233 dfcprintk (hd->ioc, printk(MYIOC_s_DEBUG_FMT
234 "%s.%d: %d:%llu, executing recovery.\n", __func__,
235 hd->ioc->name, shost->host_no,
236 SCpnt->device->id, SCpnt->device->lun));
237 rtn = mptscsih_abort(SCpnt);
238 }
239 return rtn;
240}
241
242static int
243mptfc_dev_reset(struct scsi_cmnd *SCpnt)
244{
245 struct Scsi_Host *shost = SCpnt->device->host;
246 struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device));
247 MPT_SCSI_HOST __maybe_unused *hd = shost_priv(shost);
248 int rtn;
249
250 rtn = mptfc_block_error_handler(rport);
251 if (rtn == SUCCESS) {
252 dfcprintk (hd->ioc, printk(MYIOC_s_DEBUG_FMT
253 "%s.%d: %d:%llu, executing recovery.\n", __func__,
254 hd->ioc->name, shost->host_no,
255 SCpnt->device->id, SCpnt->device->lun));
256 rtn = mptscsih_dev_reset(SCpnt);
257 }
258 return rtn;
259}
260
261static int
262mptfc_bus_reset(struct scsi_cmnd *SCpnt)
263{
264 struct Scsi_Host *shost = SCpnt->device->host;
265 MPT_SCSI_HOST __maybe_unused *hd = shost_priv(shost);
266 int channel = SCpnt->device->channel;
267 struct mptfc_rport_info *ri;
268 int rtn = FAILED;
269
270 list_for_each_entry(ri, &hd->ioc->fc_rports, list) {
271 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) {
272 VirtTarget *vtarget = ri->starget->hostdata;
273
274 if (!vtarget || vtarget->channel != channel)
275 continue;
276 rtn = fc_block_rport(ri->rport);
277 if (rtn != 0)
278 break;
279 }
280 }
281 if (rtn == 0) {
282 dfcprintk (hd->ioc, printk(MYIOC_s_DEBUG_FMT
283 "%s.%d: %d:%llu, executing recovery.\n", __func__,
284 hd->ioc->name, shost->host_no,
285 SCpnt->device->id, SCpnt->device->lun));
286 rtn = mptscsih_bus_reset(SCpnt);
287 }
288 return rtn;
289}
290
291static void
292mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
293{
294 if (timeout > 0)
295 rport->dev_loss_tmo = timeout;
296 else
297 rport->dev_loss_tmo = mptfc_dev_loss_tmo;
298}
299
300static int
301mptfc_FcDevPage0_cmp_func(const void *a, const void *b)
302{
303 FCDevicePage0_t **aa = (FCDevicePage0_t **)a;
304 FCDevicePage0_t **bb = (FCDevicePage0_t **)b;
305
306 if ((*aa)->CurrentBus == (*bb)->CurrentBus) {
307 if ((*aa)->CurrentTargetID == (*bb)->CurrentTargetID)
308 return 0;
309 if ((*aa)->CurrentTargetID < (*bb)->CurrentTargetID)
310 return -1;
311 return 1;
312 }
313 if ((*aa)->CurrentBus < (*bb)->CurrentBus)
314 return -1;
315 return 1;
316}
317
318static int
319mptfc_GetFcDevPage0(MPT_ADAPTER *ioc, int ioc_port,
320 void(*func)(MPT_ADAPTER *ioc,int channel, FCDevicePage0_t *arg))
321{
322 ConfigPageHeader_t hdr;
323 CONFIGPARMS cfg;
324 FCDevicePage0_t *ppage0_alloc, *fc;
325 dma_addr_t page0_dma;
326 int data_sz;
327 int ii;
328
329 FCDevicePage0_t *p0_array=NULL, *p_p0;
330 FCDevicePage0_t **pp0_array=NULL, **p_pp0;
331
332 int rc = -ENOMEM;
333 U32 port_id = 0xffffff;
334 int num_targ = 0;
335 int max_bus = ioc->facts.MaxBuses;
336 int max_targ;
337
338 max_targ = (ioc->facts.MaxDevices == 0) ? 256 : ioc->facts.MaxDevices;
339
340 data_sz = sizeof(FCDevicePage0_t) * max_bus * max_targ;
341 p_p0 = p0_array = kzalloc(data_sz, GFP_KERNEL);
342 if (!p0_array)
343 goto out;
344
345 data_sz = sizeof(FCDevicePage0_t *) * max_bus * max_targ;
346 p_pp0 = pp0_array = kzalloc(data_sz, GFP_KERNEL);
347 if (!pp0_array)
348 goto out;
349
350 do {
351 /* Get FC Device Page 0 header */
352 hdr.PageVersion = 0;
353 hdr.PageLength = 0;
354 hdr.PageNumber = 0;
355 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_DEVICE;
356 cfg.cfghdr.hdr = &hdr;
357 cfg.physAddr = -1;
358 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
359 cfg.dir = 0;
360 cfg.pageAddr = port_id;
361 cfg.timeout = 0;
362
363 if ((rc = mpt_config(ioc, &cfg)) != 0)
364 break;
365
366 if (hdr.PageLength <= 0)
367 break;
368
369 data_sz = hdr.PageLength * 4;
370 ppage0_alloc = dma_alloc_coherent(&ioc->pcidev->dev, data_sz,
371 &page0_dma, GFP_KERNEL);
372 rc = -ENOMEM;
373 if (!ppage0_alloc)
374 break;
375
376 cfg.physAddr = page0_dma;
377 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
378
379 if ((rc = mpt_config(ioc, &cfg)) == 0) {
380 ppage0_alloc->PortIdentifier =
381 le32_to_cpu(ppage0_alloc->PortIdentifier);
382
383 ppage0_alloc->WWNN.Low =
384 le32_to_cpu(ppage0_alloc->WWNN.Low);
385
386 ppage0_alloc->WWNN.High =
387 le32_to_cpu(ppage0_alloc->WWNN.High);
388
389 ppage0_alloc->WWPN.Low =
390 le32_to_cpu(ppage0_alloc->WWPN.Low);
391
392 ppage0_alloc->WWPN.High =
393 le32_to_cpu(ppage0_alloc->WWPN.High);
394
395 ppage0_alloc->BBCredit =
396 le16_to_cpu(ppage0_alloc->BBCredit);
397
398 ppage0_alloc->MaxRxFrameSize =
399 le16_to_cpu(ppage0_alloc->MaxRxFrameSize);
400
401 port_id = ppage0_alloc->PortIdentifier;
402 num_targ++;
403 *p_p0 = *ppage0_alloc; /* save data */
404 *p_pp0++ = p_p0++; /* save addr */
405 }
406 dma_free_coherent(&ioc->pcidev->dev, data_sz,
407 ppage0_alloc, page0_dma);
408 if (rc != 0)
409 break;
410
411 } while (port_id <= 0xff0000);
412
413 if (num_targ) {
414 /* sort array */
415 if (num_targ > 1)
416 sort (pp0_array, num_targ, sizeof(FCDevicePage0_t *),
417 mptfc_FcDevPage0_cmp_func, NULL);
418 /* call caller's func for each targ */
419 for (ii = 0; ii < num_targ; ii++) {
420 fc = *(pp0_array+ii);
421 func(ioc, ioc_port, fc);
422 }
423 }
424
425 out:
426 kfree(pp0_array);
427 kfree(p0_array);
428 return rc;
429}
430
431static int
432mptfc_generate_rport_ids(FCDevicePage0_t *pg0, struct fc_rport_identifiers *rid)
433{
434 /* not currently usable */
435 if (pg0->Flags & (MPI_FC_DEVICE_PAGE0_FLAGS_PLOGI_INVALID |
436 MPI_FC_DEVICE_PAGE0_FLAGS_PRLI_INVALID))
437 return -1;
438
439 if (!(pg0->Flags & MPI_FC_DEVICE_PAGE0_FLAGS_TARGETID_BUS_VALID))
440 return -1;
441
442 if (!(pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_TARGET))
443 return -1;
444
445 /*
446 * board data structure already normalized to platform endianness
447 * shifted to avoid unaligned access on 64 bit architecture
448 */
449 rid->node_name = ((u64)pg0->WWNN.High) << 32 | (u64)pg0->WWNN.Low;
450 rid->port_name = ((u64)pg0->WWPN.High) << 32 | (u64)pg0->WWPN.Low;
451 rid->port_id = pg0->PortIdentifier;
452 rid->roles = FC_RPORT_ROLE_UNKNOWN;
453
454 return 0;
455}
456
457static void
458mptfc_register_dev(MPT_ADAPTER *ioc, int channel, FCDevicePage0_t *pg0)
459{
460 struct fc_rport_identifiers rport_ids;
461 struct fc_rport *rport;
462 struct mptfc_rport_info *ri;
463 int new_ri = 1;
464 u64 pn, nn;
465 VirtTarget *vtarget;
466 u32 roles = FC_RPORT_ROLE_UNKNOWN;
467
468 if (mptfc_generate_rport_ids(pg0, &rport_ids) < 0)
469 return;
470
471 roles |= FC_RPORT_ROLE_FCP_TARGET;
472 if (pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_INITIATOR)
473 roles |= FC_RPORT_ROLE_FCP_INITIATOR;
474
475 /* scan list looking for a match */
476 list_for_each_entry(ri, &ioc->fc_rports, list) {
477 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
478 if (pn == rport_ids.port_name) { /* match */
479 list_move_tail(&ri->list, &ioc->fc_rports);
480 new_ri = 0;
481 break;
482 }
483 }
484 if (new_ri) { /* allocate one */
485 ri = kzalloc(sizeof(struct mptfc_rport_info), GFP_KERNEL);
486 if (!ri)
487 return;
488 list_add_tail(&ri->list, &ioc->fc_rports);
489 }
490
491 ri->pg0 = *pg0; /* add/update pg0 data */
492 ri->flags &= ~MPT_RPORT_INFO_FLAGS_MISSING;
493
494 /* MPT_RPORT_INFO_FLAGS_REGISTERED - rport not previously deleted */
495 if (!(ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED)) {
496 ri->flags |= MPT_RPORT_INFO_FLAGS_REGISTERED;
497 rport = fc_remote_port_add(ioc->sh, channel, &rport_ids);
498 if (rport) {
499 ri->rport = rport;
500 if (new_ri) /* may have been reset by user */
501 rport->dev_loss_tmo = mptfc_dev_loss_tmo;
502 /*
503 * if already mapped, remap here. If not mapped,
504 * target_alloc will allocate vtarget and map,
505 * slave_alloc will fill in vdevice from vtarget.
506 */
507 if (ri->starget) {
508 vtarget = ri->starget->hostdata;
509 if (vtarget) {
510 vtarget->id = pg0->CurrentTargetID;
511 vtarget->channel = pg0->CurrentBus;
512 vtarget->deleted = 0;
513 }
514 }
515 *((struct mptfc_rport_info **)rport->dd_data) = ri;
516 /* scan will be scheduled once rport becomes a target */
517 fc_remote_port_rolechg(rport,roles);
518
519 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
520 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low;
521 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
522 "mptfc_reg_dev.%d: %x, %llx / %llx, tid %d, "
523 "rport tid %d, tmo %d\n",
524 ioc->name,
525 ioc->sh->host_no,
526 pg0->PortIdentifier,
527 (unsigned long long)nn,
528 (unsigned long long)pn,
529 pg0->CurrentTargetID,
530 ri->rport->scsi_target_id,
531 ri->rport->dev_loss_tmo));
532 } else {
533 list_del(&ri->list);
534 kfree(ri);
535 ri = NULL;
536 }
537 }
538}
539
540/*
541 * OS entry point to allow for host driver to free allocated memory
542 * Called if no device present or device being unloaded
543 */
544static void
545mptfc_target_destroy(struct scsi_target *starget)
546{
547 struct fc_rport *rport;
548 struct mptfc_rport_info *ri;
549
550 rport = starget_to_rport(starget);
551 if (rport) {
552 ri = *((struct mptfc_rport_info **)rport->dd_data);
553 if (ri) /* better be! */
554 ri->starget = NULL;
555 }
556 kfree(starget->hostdata);
557 starget->hostdata = NULL;
558}
559
560/*
561 * OS entry point to allow host driver to alloc memory
562 * for each scsi target. Called once per device the bus scan.
563 * Return non-zero if allocation fails.
564 */
565static int
566mptfc_target_alloc(struct scsi_target *starget)
567{
568 VirtTarget *vtarget;
569 struct fc_rport *rport;
570 struct mptfc_rport_info *ri;
571 int rc;
572
573 vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL);
574 if (!vtarget)
575 return -ENOMEM;
576 starget->hostdata = vtarget;
577
578 rc = -ENODEV;
579 rport = starget_to_rport(starget);
580 if (rport) {
581 ri = *((struct mptfc_rport_info **)rport->dd_data);
582 if (ri) { /* better be! */
583 vtarget->id = ri->pg0.CurrentTargetID;
584 vtarget->channel = ri->pg0.CurrentBus;
585 ri->starget = starget;
586 rc = 0;
587 }
588 }
589 if (rc != 0) {
590 kfree(vtarget);
591 starget->hostdata = NULL;
592 }
593
594 return rc;
595}
596/*
597 * mptfc_dump_lun_info
598 * @ioc
599 * @rport
600 * @sdev
601 *
602 */
603static void
604mptfc_dump_lun_info(MPT_ADAPTER *ioc, struct fc_rport *rport, struct scsi_device *sdev,
605 VirtTarget *vtarget)
606{
607 u64 nn, pn;
608 struct mptfc_rport_info *ri;
609
610 ri = *((struct mptfc_rport_info **)rport->dd_data);
611 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
612 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low;
613 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
614 "mptfc_slv_alloc.%d: num_luns %d, sdev.id %d, "
615 "CurrentTargetID %d, %x %llx %llx\n",
616 ioc->name,
617 sdev->host->host_no,
618 vtarget->num_luns,
619 sdev->id, ri->pg0.CurrentTargetID,
620 ri->pg0.PortIdentifier,
621 (unsigned long long)pn,
622 (unsigned long long)nn));
623}
624
625
626/*
627 * OS entry point to allow host driver to alloc memory
628 * for each scsi device. Called once per device the bus scan.
629 * Return non-zero if allocation fails.
630 * Init memory once per LUN.
631 */
632static int
633mptfc_slave_alloc(struct scsi_device *sdev)
634{
635 MPT_SCSI_HOST *hd;
636 VirtTarget *vtarget;
637 VirtDevice *vdevice;
638 struct scsi_target *starget;
639 struct fc_rport *rport;
640 MPT_ADAPTER *ioc;
641
642 starget = scsi_target(sdev);
643 rport = starget_to_rport(starget);
644
645 if (!rport || fc_remote_port_chkready(rport))
646 return -ENXIO;
647
648 hd = shost_priv(sdev->host);
649 ioc = hd->ioc;
650
651 vdevice = kzalloc(sizeof(VirtDevice), GFP_KERNEL);
652 if (!vdevice) {
653 printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n",
654 ioc->name, sizeof(VirtDevice));
655 return -ENOMEM;
656 }
657
658
659 sdev->hostdata = vdevice;
660 vtarget = starget->hostdata;
661
662 if (vtarget->num_luns == 0) {
663 vtarget->ioc_id = ioc->id;
664 vtarget->tflags = MPT_TARGET_FLAGS_Q_YES;
665 }
666
667 vdevice->vtarget = vtarget;
668 vdevice->lun = sdev->lun;
669
670 vtarget->num_luns++;
671
672
673 mptfc_dump_lun_info(ioc, rport, sdev, vtarget);
674
675 return 0;
676}
677
678static int
679mptfc_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *SCpnt)
680{
681 struct mptfc_rport_info *ri;
682 struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device));
683 int err;
684 VirtDevice *vdevice = SCpnt->device->hostdata;
685
686 if (!vdevice || !vdevice->vtarget) {
687 SCpnt->result = DID_NO_CONNECT << 16;
688 scsi_done(SCpnt);
689 return 0;
690 }
691
692 err = fc_remote_port_chkready(rport);
693 if (unlikely(err)) {
694 SCpnt->result = err;
695 scsi_done(SCpnt);
696 return 0;
697 }
698
699 /* dd_data is null until finished adding target */
700 ri = *((struct mptfc_rport_info **)rport->dd_data);
701 if (unlikely(!ri)) {
702 SCpnt->result = DID_IMM_RETRY << 16;
703 scsi_done(SCpnt);
704 return 0;
705 }
706
707 return mptscsih_qcmd(SCpnt);
708}
709
710/*
711 * mptfc_display_port_link_speed - displaying link speed
712 * @ioc: Pointer to MPT_ADAPTER structure
713 * @portnum: IOC Port number
714 * @pp0dest: port page0 data payload
715 *
716 */
717static void
718mptfc_display_port_link_speed(MPT_ADAPTER *ioc, int portnum, FCPortPage0_t *pp0dest)
719{
720 u8 old_speed, new_speed, state;
721 char *old, *new;
722
723 if (portnum >= 2)
724 return;
725
726 old_speed = ioc->fc_link_speed[portnum];
727 new_speed = pp0dest->CurrentSpeed;
728 state = pp0dest->PortState;
729
730 if (state != MPI_FCPORTPAGE0_PORTSTATE_OFFLINE &&
731 new_speed != MPI_FCPORTPAGE0_CURRENT_SPEED_UNKNOWN) {
732
733 old = old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" :
734 old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" :
735 old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" :
736 "Unknown";
737 new = new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" :
738 new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" :
739 new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" :
740 "Unknown";
741 if (old_speed == 0)
742 printk(MYIOC_s_NOTE_FMT
743 "FC Link Established, Speed = %s\n",
744 ioc->name, new);
745 else if (old_speed != new_speed)
746 printk(MYIOC_s_WARN_FMT
747 "FC Link Speed Change, Old Speed = %s, New Speed = %s\n",
748 ioc->name, old, new);
749
750 ioc->fc_link_speed[portnum] = new_speed;
751 }
752}
753
754/*
755 * mptfc_GetFcPortPage0 - Fetch FCPort config Page0.
756 * @ioc: Pointer to MPT_ADAPTER structure
757 * @portnum: IOC Port number
758 *
759 * Return: 0 for success
760 * -ENOMEM if no memory available
761 * -EPERM if not allowed due to ISR context
762 * -EAGAIN if no msg frames currently available
763 * -EFAULT for non-successful reply or no reply (timeout)
764 * -EINVAL portnum arg out of range (hardwired to two elements)
765 */
766static int
767mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum)
768{
769 ConfigPageHeader_t hdr;
770 CONFIGPARMS cfg;
771 FCPortPage0_t *ppage0_alloc;
772 FCPortPage0_t *pp0dest;
773 dma_addr_t page0_dma;
774 int data_sz;
775 int copy_sz;
776 int rc;
777 int count = 400;
778
779 if (portnum > 1)
780 return -EINVAL;
781
782 /* Get FCPort Page 0 header */
783 hdr.PageVersion = 0;
784 hdr.PageLength = 0;
785 hdr.PageNumber = 0;
786 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
787 cfg.cfghdr.hdr = &hdr;
788 cfg.physAddr = -1;
789 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
790 cfg.dir = 0;
791 cfg.pageAddr = portnum;
792 cfg.timeout = 0;
793
794 if ((rc = mpt_config(ioc, &cfg)) != 0)
795 return rc;
796
797 if (hdr.PageLength == 0)
798 return 0;
799
800 data_sz = hdr.PageLength * 4;
801 rc = -ENOMEM;
802 ppage0_alloc = dma_alloc_coherent(&ioc->pcidev->dev, data_sz,
803 &page0_dma, GFP_KERNEL);
804 if (ppage0_alloc) {
805
806 try_again:
807 memset((u8 *)ppage0_alloc, 0, data_sz);
808 cfg.physAddr = page0_dma;
809 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
810
811 if ((rc = mpt_config(ioc, &cfg)) == 0) {
812 /* save the data */
813 pp0dest = &ioc->fc_port_page0[portnum];
814 copy_sz = min_t(int, sizeof(FCPortPage0_t), data_sz);
815 memcpy(pp0dest, ppage0_alloc, copy_sz);
816
817 /*
818 * Normalize endianness of structure data,
819 * by byte-swapping all > 1 byte fields!
820 */
821 pp0dest->Flags = le32_to_cpu(pp0dest->Flags);
822 pp0dest->PortIdentifier = le32_to_cpu(pp0dest->PortIdentifier);
823 pp0dest->WWNN.Low = le32_to_cpu(pp0dest->WWNN.Low);
824 pp0dest->WWNN.High = le32_to_cpu(pp0dest->WWNN.High);
825 pp0dest->WWPN.Low = le32_to_cpu(pp0dest->WWPN.Low);
826 pp0dest->WWPN.High = le32_to_cpu(pp0dest->WWPN.High);
827 pp0dest->SupportedServiceClass = le32_to_cpu(pp0dest->SupportedServiceClass);
828 pp0dest->SupportedSpeeds = le32_to_cpu(pp0dest->SupportedSpeeds);
829 pp0dest->CurrentSpeed = le32_to_cpu(pp0dest->CurrentSpeed);
830 pp0dest->MaxFrameSize = le32_to_cpu(pp0dest->MaxFrameSize);
831 pp0dest->FabricWWNN.Low = le32_to_cpu(pp0dest->FabricWWNN.Low);
832 pp0dest->FabricWWNN.High = le32_to_cpu(pp0dest->FabricWWNN.High);
833 pp0dest->FabricWWPN.Low = le32_to_cpu(pp0dest->FabricWWPN.Low);
834 pp0dest->FabricWWPN.High = le32_to_cpu(pp0dest->FabricWWPN.High);
835 pp0dest->DiscoveredPortsCount = le32_to_cpu(pp0dest->DiscoveredPortsCount);
836 pp0dest->MaxInitiators = le32_to_cpu(pp0dest->MaxInitiators);
837
838 /*
839 * if still doing discovery,
840 * hang loose a while until finished
841 */
842 if ((pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) ||
843 (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE &&
844 (pp0dest->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_TYPE_MASK)
845 == MPI_FCPORTPAGE0_FLAGS_ATTACH_NO_INIT)) {
846 if (count-- > 0) {
847 msleep(100);
848 goto try_again;
849 }
850 printk(MYIOC_s_INFO_FMT "Firmware discovery not"
851 " complete.\n",
852 ioc->name);
853 }
854 mptfc_display_port_link_speed(ioc, portnum, pp0dest);
855 }
856
857 dma_free_coherent(&ioc->pcidev->dev, data_sz, ppage0_alloc,
858 page0_dma);
859 }
860
861 return rc;
862}
863
864static int
865mptfc_WriteFcPortPage1(MPT_ADAPTER *ioc, int portnum)
866{
867 ConfigPageHeader_t hdr;
868 CONFIGPARMS cfg;
869 int rc;
870
871 if (portnum > 1)
872 return -EINVAL;
873
874 if (!(ioc->fc_data.fc_port_page1[portnum].data))
875 return -EINVAL;
876
877 /* get fcport page 1 header */
878 hdr.PageVersion = 0;
879 hdr.PageLength = 0;
880 hdr.PageNumber = 1;
881 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
882 cfg.cfghdr.hdr = &hdr;
883 cfg.physAddr = -1;
884 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
885 cfg.dir = 0;
886 cfg.pageAddr = portnum;
887 cfg.timeout = 0;
888
889 if ((rc = mpt_config(ioc, &cfg)) != 0)
890 return rc;
891
892 if (hdr.PageLength == 0)
893 return -ENODEV;
894
895 if (hdr.PageLength*4 != ioc->fc_data.fc_port_page1[portnum].pg_sz)
896 return -EINVAL;
897
898 cfg.physAddr = ioc->fc_data.fc_port_page1[portnum].dma;
899 cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT;
900 cfg.dir = 1;
901
902 rc = mpt_config(ioc, &cfg);
903
904 return rc;
905}
906
907static int
908mptfc_GetFcPortPage1(MPT_ADAPTER *ioc, int portnum)
909{
910 ConfigPageHeader_t hdr;
911 CONFIGPARMS cfg;
912 FCPortPage1_t *page1_alloc;
913 dma_addr_t page1_dma;
914 int data_sz;
915 int rc;
916
917 if (portnum > 1)
918 return -EINVAL;
919
920 /* get fcport page 1 header */
921 hdr.PageVersion = 0;
922 hdr.PageLength = 0;
923 hdr.PageNumber = 1;
924 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
925 cfg.cfghdr.hdr = &hdr;
926 cfg.physAddr = -1;
927 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
928 cfg.dir = 0;
929 cfg.pageAddr = portnum;
930 cfg.timeout = 0;
931
932 if ((rc = mpt_config(ioc, &cfg)) != 0)
933 return rc;
934
935 if (hdr.PageLength == 0)
936 return -ENODEV;
937
938start_over:
939
940 if (ioc->fc_data.fc_port_page1[portnum].data == NULL) {
941 data_sz = hdr.PageLength * 4;
942 if (data_sz < sizeof(FCPortPage1_t))
943 data_sz = sizeof(FCPortPage1_t);
944
945 page1_alloc = dma_alloc_coherent(&ioc->pcidev->dev, data_sz,
946 &page1_dma, GFP_KERNEL);
947 if (!page1_alloc)
948 return -ENOMEM;
949 }
950 else {
951 page1_alloc = ioc->fc_data.fc_port_page1[portnum].data;
952 page1_dma = ioc->fc_data.fc_port_page1[portnum].dma;
953 data_sz = ioc->fc_data.fc_port_page1[portnum].pg_sz;
954 if (hdr.PageLength * 4 > data_sz) {
955 ioc->fc_data.fc_port_page1[portnum].data = NULL;
956 dma_free_coherent(&ioc->pcidev->dev, data_sz,
957 page1_alloc, page1_dma);
958 goto start_over;
959 }
960 }
961
962 cfg.physAddr = page1_dma;
963 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
964
965 if ((rc = mpt_config(ioc, &cfg)) == 0) {
966 ioc->fc_data.fc_port_page1[portnum].data = page1_alloc;
967 ioc->fc_data.fc_port_page1[portnum].pg_sz = data_sz;
968 ioc->fc_data.fc_port_page1[portnum].dma = page1_dma;
969 }
970 else {
971 ioc->fc_data.fc_port_page1[portnum].data = NULL;
972 dma_free_coherent(&ioc->pcidev->dev, data_sz, page1_alloc,
973 page1_dma);
974 }
975
976 return rc;
977}
978
979static void
980mptfc_SetFcPortPage1_defaults(MPT_ADAPTER *ioc)
981{
982 int ii;
983 FCPortPage1_t *pp1;
984
985 #define MPTFC_FW_DEVICE_TIMEOUT (1)
986 #define MPTFC_FW_IO_PEND_TIMEOUT (1)
987 #define ON_FLAGS (MPI_FCPORTPAGE1_FLAGS_IMMEDIATE_ERROR_REPLY)
988 #define OFF_FLAGS (MPI_FCPORTPAGE1_FLAGS_VERBOSE_RESCAN_EVENTS)
989
990 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) {
991 if (mptfc_GetFcPortPage1(ioc, ii) != 0)
992 continue;
993 pp1 = ioc->fc_data.fc_port_page1[ii].data;
994 if ((pp1->InitiatorDeviceTimeout == MPTFC_FW_DEVICE_TIMEOUT)
995 && (pp1->InitiatorIoPendTimeout == MPTFC_FW_IO_PEND_TIMEOUT)
996 && ((pp1->Flags & ON_FLAGS) == ON_FLAGS)
997 && ((pp1->Flags & OFF_FLAGS) == 0))
998 continue;
999 pp1->InitiatorDeviceTimeout = MPTFC_FW_DEVICE_TIMEOUT;
1000 pp1->InitiatorIoPendTimeout = MPTFC_FW_IO_PEND_TIMEOUT;
1001 pp1->Flags &= ~OFF_FLAGS;
1002 pp1->Flags |= ON_FLAGS;
1003 mptfc_WriteFcPortPage1(ioc, ii);
1004 }
1005}
1006
1007
1008static void
1009mptfc_init_host_attr(MPT_ADAPTER *ioc,int portnum)
1010{
1011 unsigned class = 0;
1012 unsigned cos = 0;
1013 unsigned speed;
1014 unsigned port_type;
1015 unsigned port_state;
1016 FCPortPage0_t *pp0;
1017 struct Scsi_Host *sh;
1018 char *sn;
1019
1020 /* don't know what to do as only one scsi (fc) host was allocated */
1021 if (portnum != 0)
1022 return;
1023
1024 pp0 = &ioc->fc_port_page0[portnum];
1025 sh = ioc->sh;
1026
1027 sn = fc_host_symbolic_name(sh);
1028 snprintf(sn, FC_SYMBOLIC_NAME_SIZE, "%s %s%08xh",
1029 ioc->prod_name,
1030 MPT_FW_REV_MAGIC_ID_STRING,
1031 ioc->facts.FWVersion.Word);
1032
1033 fc_host_tgtid_bind_type(sh) = FC_TGTID_BIND_BY_WWPN;
1034
1035 fc_host_maxframe_size(sh) = pp0->MaxFrameSize;
1036
1037 fc_host_node_name(sh) =
1038 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low;
1039
1040 fc_host_port_name(sh) =
1041 (u64)pp0->WWPN.High << 32 | (u64)pp0->WWPN.Low;
1042
1043 fc_host_port_id(sh) = pp0->PortIdentifier;
1044
1045 class = pp0->SupportedServiceClass;
1046 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_1)
1047 cos |= FC_COS_CLASS1;
1048 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_2)
1049 cos |= FC_COS_CLASS2;
1050 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_3)
1051 cos |= FC_COS_CLASS3;
1052 fc_host_supported_classes(sh) = cos;
1053
1054 if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT)
1055 speed = FC_PORTSPEED_1GBIT;
1056 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT)
1057 speed = FC_PORTSPEED_2GBIT;
1058 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT)
1059 speed = FC_PORTSPEED_4GBIT;
1060 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_10GBIT)
1061 speed = FC_PORTSPEED_10GBIT;
1062 else
1063 speed = FC_PORTSPEED_UNKNOWN;
1064 fc_host_speed(sh) = speed;
1065
1066 speed = 0;
1067 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_1GBIT_SPEED)
1068 speed |= FC_PORTSPEED_1GBIT;
1069 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_2GBIT_SPEED)
1070 speed |= FC_PORTSPEED_2GBIT;
1071 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_4GBIT_SPEED)
1072 speed |= FC_PORTSPEED_4GBIT;
1073 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_10GBIT_SPEED)
1074 speed |= FC_PORTSPEED_10GBIT;
1075 fc_host_supported_speeds(sh) = speed;
1076
1077 port_state = FC_PORTSTATE_UNKNOWN;
1078 if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE)
1079 port_state = FC_PORTSTATE_ONLINE;
1080 else if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_OFFLINE)
1081 port_state = FC_PORTSTATE_LINKDOWN;
1082 fc_host_port_state(sh) = port_state;
1083
1084 port_type = FC_PORTTYPE_UNKNOWN;
1085 if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_POINT_TO_POINT)
1086 port_type = FC_PORTTYPE_PTP;
1087 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PRIVATE_LOOP)
1088 port_type = FC_PORTTYPE_LPORT;
1089 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PUBLIC_LOOP)
1090 port_type = FC_PORTTYPE_NLPORT;
1091 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_FABRIC_DIRECT)
1092 port_type = FC_PORTTYPE_NPORT;
1093 fc_host_port_type(sh) = port_type;
1094
1095 fc_host_fabric_name(sh) =
1096 (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_FABRIC_WWN_VALID) ?
1097 (u64) pp0->FabricWWNN.High << 32 | (u64) pp0->FabricWWPN.Low :
1098 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low;
1099
1100}
1101
1102static void
1103mptfc_link_status_change(struct work_struct *work)
1104{
1105 MPT_ADAPTER *ioc =
1106 container_of(work, MPT_ADAPTER, fc_rescan_work);
1107 int ii;
1108
1109 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++)
1110 (void) mptfc_GetFcPortPage0(ioc, ii);
1111
1112}
1113
1114static void
1115mptfc_setup_reset(struct work_struct *work)
1116{
1117 MPT_ADAPTER *ioc =
1118 container_of(work, MPT_ADAPTER, fc_setup_reset_work);
1119 u64 pn;
1120 struct mptfc_rport_info *ri;
1121 struct scsi_target *starget;
1122 VirtTarget *vtarget;
1123
1124 /* reset about to happen, delete (block) all rports */
1125 list_for_each_entry(ri, &ioc->fc_rports, list) {
1126 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) {
1127 ri->flags &= ~MPT_RPORT_INFO_FLAGS_REGISTERED;
1128 fc_remote_port_delete(ri->rport); /* won't sleep */
1129 ri->rport = NULL;
1130 starget = ri->starget;
1131 if (starget) {
1132 vtarget = starget->hostdata;
1133 if (vtarget)
1134 vtarget->deleted = 1;
1135 }
1136
1137 pn = (u64)ri->pg0.WWPN.High << 32 |
1138 (u64)ri->pg0.WWPN.Low;
1139 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
1140 "mptfc_setup_reset.%d: %llx deleted\n",
1141 ioc->name,
1142 ioc->sh->host_no,
1143 (unsigned long long)pn));
1144 }
1145 }
1146}
1147
1148static void
1149mptfc_rescan_devices(struct work_struct *work)
1150{
1151 MPT_ADAPTER *ioc =
1152 container_of(work, MPT_ADAPTER, fc_rescan_work);
1153 int ii;
1154 u64 pn;
1155 struct mptfc_rport_info *ri;
1156 struct scsi_target *starget;
1157 VirtTarget *vtarget;
1158
1159 /* start by tagging all ports as missing */
1160 list_for_each_entry(ri, &ioc->fc_rports, list) {
1161 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) {
1162 ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING;
1163 }
1164 }
1165
1166 /*
1167 * now rescan devices known to adapter,
1168 * will reregister existing rports
1169 */
1170 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1171 (void) mptfc_GetFcPortPage0(ioc, ii);
1172 mptfc_init_host_attr(ioc, ii); /* refresh */
1173 mptfc_GetFcDevPage0(ioc, ii, mptfc_register_dev);
1174 }
1175
1176 /* delete devices still missing */
1177 list_for_each_entry(ri, &ioc->fc_rports, list) {
1178 /* if newly missing, delete it */
1179 if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) {
1180
1181 ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED|
1182 MPT_RPORT_INFO_FLAGS_MISSING);
1183 fc_remote_port_delete(ri->rport); /* won't sleep */
1184 ri->rport = NULL;
1185 starget = ri->starget;
1186 if (starget) {
1187 vtarget = starget->hostdata;
1188 if (vtarget)
1189 vtarget->deleted = 1;
1190 }
1191
1192 pn = (u64)ri->pg0.WWPN.High << 32 |
1193 (u64)ri->pg0.WWPN.Low;
1194 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
1195 "mptfc_rescan.%d: %llx deleted\n",
1196 ioc->name,
1197 ioc->sh->host_no,
1198 (unsigned long long)pn));
1199 }
1200 }
1201}
1202
1203static int
1204mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id)
1205{
1206 struct Scsi_Host *sh;
1207 MPT_SCSI_HOST *hd;
1208 MPT_ADAPTER *ioc;
1209 unsigned long flags;
1210 int ii;
1211 int numSGE = 0;
1212 int scale;
1213 int ioc_cap;
1214 int error=0;
1215 int r;
1216
1217 if ((r = mpt_attach(pdev,id)) != 0)
1218 return r;
1219
1220 ioc = pci_get_drvdata(pdev);
1221 ioc->DoneCtx = mptfcDoneCtx;
1222 ioc->TaskCtx = mptfcTaskCtx;
1223 ioc->InternalCtx = mptfcInternalCtx;
1224
1225 /* Added sanity check on readiness of the MPT adapter.
1226 */
1227 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) {
1228 printk(MYIOC_s_WARN_FMT
1229 "Skipping because it's not operational!\n",
1230 ioc->name);
1231 error = -ENODEV;
1232 goto out_mptfc_probe;
1233 }
1234
1235 if (!ioc->active) {
1236 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n",
1237 ioc->name);
1238 error = -ENODEV;
1239 goto out_mptfc_probe;
1240 }
1241
1242 /* Sanity check - ensure at least 1 port is INITIATOR capable
1243 */
1244 ioc_cap = 0;
1245 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1246 if (ioc->pfacts[ii].ProtocolFlags &
1247 MPI_PORTFACTS_PROTOCOL_INITIATOR)
1248 ioc_cap ++;
1249 }
1250
1251 if (!ioc_cap) {
1252 printk(MYIOC_s_WARN_FMT
1253 "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n",
1254 ioc->name, ioc);
1255 return 0;
1256 }
1257
1258 sh = scsi_host_alloc(&mptfc_driver_template, sizeof(MPT_SCSI_HOST));
1259
1260 if (!sh) {
1261 printk(MYIOC_s_WARN_FMT
1262 "Unable to register controller with SCSI subsystem\n",
1263 ioc->name);
1264 error = -1;
1265 goto out_mptfc_probe;
1266 }
1267
1268 spin_lock_init(&ioc->fc_rescan_work_lock);
1269 INIT_WORK(&ioc->fc_rescan_work, mptfc_rescan_devices);
1270 INIT_WORK(&ioc->fc_setup_reset_work, mptfc_setup_reset);
1271 INIT_WORK(&ioc->fc_lsc_work, mptfc_link_status_change);
1272
1273 spin_lock_irqsave(&ioc->FreeQlock, flags);
1274
1275 /* Attach the SCSI Host to the IOC structure
1276 */
1277 ioc->sh = sh;
1278
1279 sh->io_port = 0;
1280 sh->n_io_port = 0;
1281 sh->irq = 0;
1282
1283 /* set 16 byte cdb's */
1284 sh->max_cmd_len = 16;
1285
1286 sh->max_id = ioc->pfacts->MaxDevices;
1287 sh->max_lun = max_lun;
1288
1289 /* Required entry.
1290 */
1291 sh->unique_id = ioc->id;
1292
1293 /* Verify that we won't exceed the maximum
1294 * number of chain buffers
1295 * We can optimize: ZZ = req_sz/sizeof(SGE)
1296 * For 32bit SGE's:
1297 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ
1298 * + (req_sz - 64)/sizeof(SGE)
1299 * A slightly different algorithm is required for
1300 * 64bit SGEs.
1301 */
1302 scale = ioc->req_sz/ioc->SGE_size;
1303 if (ioc->sg_addr_size == sizeof(u64)) {
1304 numSGE = (scale - 1) *
1305 (ioc->facts.MaxChainDepth-1) + scale +
1306 (ioc->req_sz - 60) / ioc->SGE_size;
1307 } else {
1308 numSGE = 1 + (scale - 1) *
1309 (ioc->facts.MaxChainDepth-1) + scale +
1310 (ioc->req_sz - 64) / ioc->SGE_size;
1311 }
1312
1313 if (numSGE < sh->sg_tablesize) {
1314 /* Reset this value */
1315 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1316 "Resetting sg_tablesize to %d from %d\n",
1317 ioc->name, numSGE, sh->sg_tablesize));
1318 sh->sg_tablesize = numSGE;
1319 }
1320
1321 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1322
1323 hd = shost_priv(sh);
1324 hd->ioc = ioc;
1325
1326 /* SCSI needs scsi_cmnd lookup table!
1327 * (with size equal to req_depth*PtrSz!)
1328 */
1329 ioc->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_KERNEL);
1330 if (!ioc->ScsiLookup) {
1331 error = -ENOMEM;
1332 goto out_mptfc_probe;
1333 }
1334 spin_lock_init(&ioc->scsi_lookup_lock);
1335
1336 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScsiLookup @ %p\n",
1337 ioc->name, ioc->ScsiLookup));
1338
1339 hd->last_queue_full = 0;
1340
1341 sh->transportt = mptfc_transport_template;
1342 error = scsi_add_host (sh, &ioc->pcidev->dev);
1343 if(error) {
1344 dprintk(ioc, printk(MYIOC_s_ERR_FMT
1345 "scsi_add_host failed\n", ioc->name));
1346 goto out_mptfc_probe;
1347 }
1348
1349 /* initialize workqueue */
1350
1351 snprintf(ioc->fc_rescan_work_q_name, sizeof(ioc->fc_rescan_work_q_name),
1352 "mptfc_wq_%d", sh->host_no);
1353 ioc->fc_rescan_work_q =
1354 alloc_ordered_workqueue(ioc->fc_rescan_work_q_name,
1355 WQ_MEM_RECLAIM);
1356 if (!ioc->fc_rescan_work_q) {
1357 error = -ENOMEM;
1358 goto out_mptfc_host;
1359 }
1360
1361 /*
1362 * Pre-fetch FC port WWN and stuff...
1363 * (FCPortPage0_t stuff)
1364 */
1365 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1366 (void) mptfc_GetFcPortPage0(ioc, ii);
1367 }
1368 mptfc_SetFcPortPage1_defaults(ioc);
1369
1370 /*
1371 * scan for rports -
1372 * by doing it via the workqueue, some locking is eliminated
1373 */
1374
1375 queue_work(ioc->fc_rescan_work_q, &ioc->fc_rescan_work);
1376 flush_workqueue(ioc->fc_rescan_work_q);
1377
1378 return 0;
1379
1380out_mptfc_host:
1381 scsi_remove_host(sh);
1382
1383out_mptfc_probe:
1384
1385 mptscsih_remove(pdev);
1386 return error;
1387}
1388
1389static struct pci_driver mptfc_driver = {
1390 .name = "mptfc",
1391 .id_table = mptfc_pci_table,
1392 .probe = mptfc_probe,
1393 .remove = mptfc_remove,
1394 .shutdown = mptscsih_shutdown,
1395#ifdef CONFIG_PM
1396 .suspend = mptscsih_suspend,
1397 .resume = mptscsih_resume,
1398#endif
1399};
1400
1401static int
1402mptfc_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
1403{
1404 MPT_SCSI_HOST *hd;
1405 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
1406 unsigned long flags;
1407 int rc=1;
1408
1409 if (ioc->bus_type != FC)
1410 return 0;
1411
1412 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n",
1413 ioc->name, event));
1414
1415 if (ioc->sh == NULL ||
1416 ((hd = shost_priv(ioc->sh)) == NULL))
1417 return 1;
1418
1419 switch (event) {
1420 case MPI_EVENT_RESCAN:
1421 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1422 if (ioc->fc_rescan_work_q) {
1423 queue_work(ioc->fc_rescan_work_q,
1424 &ioc->fc_rescan_work);
1425 }
1426 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1427 break;
1428 case MPI_EVENT_LINK_STATUS_CHANGE:
1429 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1430 if (ioc->fc_rescan_work_q) {
1431 queue_work(ioc->fc_rescan_work_q,
1432 &ioc->fc_lsc_work);
1433 }
1434 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1435 break;
1436 default:
1437 rc = mptscsih_event_process(ioc,pEvReply);
1438 break;
1439 }
1440 return rc;
1441}
1442
1443static int
1444mptfc_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
1445{
1446 int rc;
1447 unsigned long flags;
1448
1449 rc = mptscsih_ioc_reset(ioc,reset_phase);
1450 if ((ioc->bus_type != FC) || (!rc))
1451 return rc;
1452
1453
1454 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1455 ": IOC %s_reset routed to FC host driver!\n",ioc->name,
1456 reset_phase==MPT_IOC_SETUP_RESET ? "setup" : (
1457 reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post")));
1458
1459 if (reset_phase == MPT_IOC_SETUP_RESET) {
1460 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1461 if (ioc->fc_rescan_work_q) {
1462 queue_work(ioc->fc_rescan_work_q,
1463 &ioc->fc_setup_reset_work);
1464 }
1465 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1466 }
1467
1468 else if (reset_phase == MPT_IOC_PRE_RESET) {
1469 }
1470
1471 else { /* MPT_IOC_POST_RESET */
1472 mptfc_SetFcPortPage1_defaults(ioc);
1473 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1474 if (ioc->fc_rescan_work_q) {
1475 queue_work(ioc->fc_rescan_work_q,
1476 &ioc->fc_rescan_work);
1477 }
1478 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1479 }
1480 return 1;
1481}
1482
1483/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1484/**
1485 * mptfc_init - Register MPT adapter(s) as SCSI host(s) with SCSI mid-layer.
1486 *
1487 * Returns 0 for success, non-zero for failure.
1488 */
1489static int __init
1490mptfc_init(void)
1491{
1492 int error;
1493
1494 show_mptmod_ver(my_NAME, my_VERSION);
1495
1496 /* sanity check module parameters */
1497 if (mptfc_dev_loss_tmo <= 0)
1498 mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO;
1499
1500 mptfc_transport_template =
1501 fc_attach_transport(&mptfc_transport_functions);
1502
1503 if (!mptfc_transport_template)
1504 return -ENODEV;
1505
1506 mptfcDoneCtx = mpt_register(mptscsih_io_done, MPTFC_DRIVER,
1507 "mptscsih_scandv_complete");
1508 mptfcTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTFC_DRIVER,
1509 "mptscsih_scandv_complete");
1510 mptfcInternalCtx = mpt_register(mptscsih_scandv_complete, MPTFC_DRIVER,
1511 "mptscsih_scandv_complete");
1512
1513 mpt_event_register(mptfcDoneCtx, mptfc_event_process);
1514 mpt_reset_register(mptfcDoneCtx, mptfc_ioc_reset);
1515
1516 error = pci_register_driver(&mptfc_driver);
1517 if (error)
1518 fc_release_transport(mptfc_transport_template);
1519
1520 return error;
1521}
1522
1523/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1524/**
1525 * mptfc_remove - Remove fc infrastructure for devices
1526 * @pdev: Pointer to pci_dev structure
1527 *
1528 */
1529static void mptfc_remove(struct pci_dev *pdev)
1530{
1531 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1532 struct mptfc_rport_info *p, *n;
1533 struct workqueue_struct *work_q;
1534 unsigned long flags;
1535 int ii;
1536
1537 /* destroy workqueue */
1538 if ((work_q=ioc->fc_rescan_work_q)) {
1539 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1540 ioc->fc_rescan_work_q = NULL;
1541 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1542 destroy_workqueue(work_q);
1543 }
1544
1545 fc_remove_host(ioc->sh);
1546
1547 list_for_each_entry_safe(p, n, &ioc->fc_rports, list) {
1548 list_del(&p->list);
1549 kfree(p);
1550 }
1551
1552 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) {
1553 if (ioc->fc_data.fc_port_page1[ii].data) {
1554 dma_free_coherent(&ioc->pcidev->dev,
1555 ioc->fc_data.fc_port_page1[ii].pg_sz,
1556 ioc->fc_data.fc_port_page1[ii].data,
1557 ioc->fc_data.fc_port_page1[ii].dma);
1558 ioc->fc_data.fc_port_page1[ii].data = NULL;
1559 }
1560 }
1561
1562 scsi_remove_host(ioc->sh);
1563
1564 mptscsih_remove(pdev);
1565}
1566
1567/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1568/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1569/**
1570 * mptfc_exit - Unregisters MPT adapter(s)
1571 *
1572 */
1573static void __exit
1574mptfc_exit(void)
1575{
1576 pci_unregister_driver(&mptfc_driver);
1577 fc_release_transport(mptfc_transport_template);
1578
1579 mpt_reset_deregister(mptfcDoneCtx);
1580 mpt_event_deregister(mptfcDoneCtx);
1581
1582 mpt_deregister(mptfcInternalCtx);
1583 mpt_deregister(mptfcTaskCtx);
1584 mpt_deregister(mptfcDoneCtx);
1585}
1586
1587module_init(mptfc_init);
1588module_exit(mptfc_exit);
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
74MODULE_AUTHOR(MODULEAUTHOR);
75MODULE_DESCRIPTION(my_NAME);
76MODULE_LICENSE("GPL");
77MODULE_VERSION(my_VERSION);
78
79/* Command line args */
80#define MPTFC_DEV_LOSS_TMO (60)
81static int mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO; /* reasonable default */
82module_param(mptfc_dev_loss_tmo, int, 0);
83MODULE_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)
90static int max_lun = MPTFC_MAX_LUN;
91module_param(max_lun, int, 0);
92MODULE_PARM_DESC(max_lun, " max lun, default=16895 ");
93
94static u8 mptfcDoneCtx = MPT_MAX_PROTOCOL_DRIVERS;
95static u8 mptfcTaskCtx = MPT_MAX_PROTOCOL_DRIVERS;
96static u8 mptfcInternalCtx = MPT_MAX_PROTOCOL_DRIVERS;
97
98static int mptfc_target_alloc(struct scsi_target *starget);
99static int mptfc_slave_alloc(struct scsi_device *sdev);
100static int mptfc_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *SCpnt);
101static void mptfc_target_destroy(struct scsi_target *starget);
102static void mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout);
103static void mptfc_remove(struct pci_dev *pdev);
104static int mptfc_abort(struct scsi_cmnd *SCpnt);
105static int mptfc_dev_reset(struct scsi_cmnd *SCpnt);
106static int mptfc_bus_reset(struct scsi_cmnd *SCpnt);
107
108static struct scsi_host_template mptfc_driver_template = {
109 .module = THIS_MODULE,
110 .proc_name = "mptfc",
111 .show_info = mptscsih_show_info,
112 .name = "MPT FC Host",
113 .info = mptscsih_info,
114 .queuecommand = mptfc_qcmd,
115 .target_alloc = mptfc_target_alloc,
116 .slave_alloc = mptfc_slave_alloc,
117 .slave_configure = mptscsih_slave_configure,
118 .target_destroy = mptfc_target_destroy,
119 .slave_destroy = mptscsih_slave_destroy,
120 .change_queue_depth = mptscsih_change_queue_depth,
121 .eh_timed_out = fc_eh_timed_out,
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 = mptscsih_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
140static 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};
161MODULE_DEVICE_TABLE(pci, mptfc_pci_table);
162
163static struct scsi_transport_template *mptfc_transport_template = NULL;
164
165static 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
186static int
187mptfc_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 MPT_ADAPTER *ioc;
198 int loops = 40; /* seconds */
199
200 hd = shost_priv(SCpnt->device->host);
201 ioc = hd->ioc;
202 spin_lock_irqsave(shost->host_lock, flags);
203 while ((ready = fc_remote_port_chkready(rport) >> 16) == DID_IMM_RETRY
204 || (loops > 0 && ioc->active == 0)) {
205 spin_unlock_irqrestore(shost->host_lock, flags);
206 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
207 "mptfc_block_error_handler.%d: %d:%llu, port status is "
208 "%x, active flag %d, deferring %s recovery.\n",
209 ioc->name, ioc->sh->host_no,
210 SCpnt->device->id, SCpnt->device->lun,
211 ready, ioc->active, caller));
212 msleep(1000);
213 spin_lock_irqsave(shost->host_lock, flags);
214 loops --;
215 }
216 spin_unlock_irqrestore(shost->host_lock, flags);
217
218 if (ready == DID_NO_CONNECT || !SCpnt->device->hostdata
219 || ioc->active == 0) {
220 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
221 "%s.%d: %d:%llu, failing recovery, "
222 "port state %x, active %d, vdevice %p.\n", caller,
223 ioc->name, ioc->sh->host_no,
224 SCpnt->device->id, SCpnt->device->lun, ready,
225 ioc->active, SCpnt->device->hostdata));
226 return FAILED;
227 }
228 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
229 "%s.%d: %d:%llu, executing recovery.\n", caller,
230 ioc->name, ioc->sh->host_no,
231 SCpnt->device->id, SCpnt->device->lun));
232 return (*func)(SCpnt);
233}
234
235static int
236mptfc_abort(struct scsi_cmnd *SCpnt)
237{
238 return
239 mptfc_block_error_handler(SCpnt, mptscsih_abort, __func__);
240}
241
242static int
243mptfc_dev_reset(struct scsi_cmnd *SCpnt)
244{
245 return
246 mptfc_block_error_handler(SCpnt, mptscsih_dev_reset, __func__);
247}
248
249static int
250mptfc_bus_reset(struct scsi_cmnd *SCpnt)
251{
252 return
253 mptfc_block_error_handler(SCpnt, mptscsih_bus_reset, __func__);
254}
255
256static void
257mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
258{
259 if (timeout > 0)
260 rport->dev_loss_tmo = timeout;
261 else
262 rport->dev_loss_tmo = mptfc_dev_loss_tmo;
263}
264
265static int
266mptfc_FcDevPage0_cmp_func(const void *a, const void *b)
267{
268 FCDevicePage0_t **aa = (FCDevicePage0_t **)a;
269 FCDevicePage0_t **bb = (FCDevicePage0_t **)b;
270
271 if ((*aa)->CurrentBus == (*bb)->CurrentBus) {
272 if ((*aa)->CurrentTargetID == (*bb)->CurrentTargetID)
273 return 0;
274 if ((*aa)->CurrentTargetID < (*bb)->CurrentTargetID)
275 return -1;
276 return 1;
277 }
278 if ((*aa)->CurrentBus < (*bb)->CurrentBus)
279 return -1;
280 return 1;
281}
282
283static int
284mptfc_GetFcDevPage0(MPT_ADAPTER *ioc, int ioc_port,
285 void(*func)(MPT_ADAPTER *ioc,int channel, FCDevicePage0_t *arg))
286{
287 ConfigPageHeader_t hdr;
288 CONFIGPARMS cfg;
289 FCDevicePage0_t *ppage0_alloc, *fc;
290 dma_addr_t page0_dma;
291 int data_sz;
292 int ii;
293
294 FCDevicePage0_t *p0_array=NULL, *p_p0;
295 FCDevicePage0_t **pp0_array=NULL, **p_pp0;
296
297 int rc = -ENOMEM;
298 U32 port_id = 0xffffff;
299 int num_targ = 0;
300 int max_bus = ioc->facts.MaxBuses;
301 int max_targ;
302
303 max_targ = (ioc->facts.MaxDevices == 0) ? 256 : ioc->facts.MaxDevices;
304
305 data_sz = sizeof(FCDevicePage0_t) * max_bus * max_targ;
306 p_p0 = p0_array = kzalloc(data_sz, GFP_KERNEL);
307 if (!p0_array)
308 goto out;
309
310 data_sz = sizeof(FCDevicePage0_t *) * max_bus * max_targ;
311 p_pp0 = pp0_array = kzalloc(data_sz, GFP_KERNEL);
312 if (!pp0_array)
313 goto out;
314
315 do {
316 /* Get FC Device Page 0 header */
317 hdr.PageVersion = 0;
318 hdr.PageLength = 0;
319 hdr.PageNumber = 0;
320 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_DEVICE;
321 cfg.cfghdr.hdr = &hdr;
322 cfg.physAddr = -1;
323 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
324 cfg.dir = 0;
325 cfg.pageAddr = port_id;
326 cfg.timeout = 0;
327
328 if ((rc = mpt_config(ioc, &cfg)) != 0)
329 break;
330
331 if (hdr.PageLength <= 0)
332 break;
333
334 data_sz = hdr.PageLength * 4;
335 ppage0_alloc = pci_alloc_consistent(ioc->pcidev, data_sz,
336 &page0_dma);
337 rc = -ENOMEM;
338 if (!ppage0_alloc)
339 break;
340
341 cfg.physAddr = page0_dma;
342 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
343
344 if ((rc = mpt_config(ioc, &cfg)) == 0) {
345 ppage0_alloc->PortIdentifier =
346 le32_to_cpu(ppage0_alloc->PortIdentifier);
347
348 ppage0_alloc->WWNN.Low =
349 le32_to_cpu(ppage0_alloc->WWNN.Low);
350
351 ppage0_alloc->WWNN.High =
352 le32_to_cpu(ppage0_alloc->WWNN.High);
353
354 ppage0_alloc->WWPN.Low =
355 le32_to_cpu(ppage0_alloc->WWPN.Low);
356
357 ppage0_alloc->WWPN.High =
358 le32_to_cpu(ppage0_alloc->WWPN.High);
359
360 ppage0_alloc->BBCredit =
361 le16_to_cpu(ppage0_alloc->BBCredit);
362
363 ppage0_alloc->MaxRxFrameSize =
364 le16_to_cpu(ppage0_alloc->MaxRxFrameSize);
365
366 port_id = ppage0_alloc->PortIdentifier;
367 num_targ++;
368 *p_p0 = *ppage0_alloc; /* save data */
369 *p_pp0++ = p_p0++; /* save addr */
370 }
371 pci_free_consistent(ioc->pcidev, data_sz,
372 (u8 *) ppage0_alloc, page0_dma);
373 if (rc != 0)
374 break;
375
376 } while (port_id <= 0xff0000);
377
378 if (num_targ) {
379 /* sort array */
380 if (num_targ > 1)
381 sort (pp0_array, num_targ, sizeof(FCDevicePage0_t *),
382 mptfc_FcDevPage0_cmp_func, NULL);
383 /* call caller's func for each targ */
384 for (ii = 0; ii < num_targ; ii++) {
385 fc = *(pp0_array+ii);
386 func(ioc, ioc_port, fc);
387 }
388 }
389
390 out:
391 kfree(pp0_array);
392 kfree(p0_array);
393 return rc;
394}
395
396static int
397mptfc_generate_rport_ids(FCDevicePage0_t *pg0, struct fc_rport_identifiers *rid)
398{
399 /* not currently usable */
400 if (pg0->Flags & (MPI_FC_DEVICE_PAGE0_FLAGS_PLOGI_INVALID |
401 MPI_FC_DEVICE_PAGE0_FLAGS_PRLI_INVALID))
402 return -1;
403
404 if (!(pg0->Flags & MPI_FC_DEVICE_PAGE0_FLAGS_TARGETID_BUS_VALID))
405 return -1;
406
407 if (!(pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_TARGET))
408 return -1;
409
410 /*
411 * board data structure already normalized to platform endianness
412 * shifted to avoid unaligned access on 64 bit architecture
413 */
414 rid->node_name = ((u64)pg0->WWNN.High) << 32 | (u64)pg0->WWNN.Low;
415 rid->port_name = ((u64)pg0->WWPN.High) << 32 | (u64)pg0->WWPN.Low;
416 rid->port_id = pg0->PortIdentifier;
417 rid->roles = FC_RPORT_ROLE_UNKNOWN;
418
419 return 0;
420}
421
422static void
423mptfc_register_dev(MPT_ADAPTER *ioc, int channel, FCDevicePage0_t *pg0)
424{
425 struct fc_rport_identifiers rport_ids;
426 struct fc_rport *rport;
427 struct mptfc_rport_info *ri;
428 int new_ri = 1;
429 u64 pn, nn;
430 VirtTarget *vtarget;
431 u32 roles = FC_RPORT_ROLE_UNKNOWN;
432
433 if (mptfc_generate_rport_ids(pg0, &rport_ids) < 0)
434 return;
435
436 roles |= FC_RPORT_ROLE_FCP_TARGET;
437 if (pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_INITIATOR)
438 roles |= FC_RPORT_ROLE_FCP_INITIATOR;
439
440 /* scan list looking for a match */
441 list_for_each_entry(ri, &ioc->fc_rports, list) {
442 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
443 if (pn == rport_ids.port_name) { /* match */
444 list_move_tail(&ri->list, &ioc->fc_rports);
445 new_ri = 0;
446 break;
447 }
448 }
449 if (new_ri) { /* allocate one */
450 ri = kzalloc(sizeof(struct mptfc_rport_info), GFP_KERNEL);
451 if (!ri)
452 return;
453 list_add_tail(&ri->list, &ioc->fc_rports);
454 }
455
456 ri->pg0 = *pg0; /* add/update pg0 data */
457 ri->flags &= ~MPT_RPORT_INFO_FLAGS_MISSING;
458
459 /* MPT_RPORT_INFO_FLAGS_REGISTERED - rport not previously deleted */
460 if (!(ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED)) {
461 ri->flags |= MPT_RPORT_INFO_FLAGS_REGISTERED;
462 rport = fc_remote_port_add(ioc->sh, channel, &rport_ids);
463 if (rport) {
464 ri->rport = rport;
465 if (new_ri) /* may have been reset by user */
466 rport->dev_loss_tmo = mptfc_dev_loss_tmo;
467 /*
468 * if already mapped, remap here. If not mapped,
469 * target_alloc will allocate vtarget and map,
470 * slave_alloc will fill in vdevice from vtarget.
471 */
472 if (ri->starget) {
473 vtarget = ri->starget->hostdata;
474 if (vtarget) {
475 vtarget->id = pg0->CurrentTargetID;
476 vtarget->channel = pg0->CurrentBus;
477 vtarget->deleted = 0;
478 }
479 }
480 *((struct mptfc_rport_info **)rport->dd_data) = ri;
481 /* scan will be scheduled once rport becomes a target */
482 fc_remote_port_rolechg(rport,roles);
483
484 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
485 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low;
486 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
487 "mptfc_reg_dev.%d: %x, %llx / %llx, tid %d, "
488 "rport tid %d, tmo %d\n",
489 ioc->name,
490 ioc->sh->host_no,
491 pg0->PortIdentifier,
492 (unsigned long long)nn,
493 (unsigned long long)pn,
494 pg0->CurrentTargetID,
495 ri->rport->scsi_target_id,
496 ri->rport->dev_loss_tmo));
497 } else {
498 list_del(&ri->list);
499 kfree(ri);
500 ri = NULL;
501 }
502 }
503}
504
505/*
506 * OS entry point to allow for host driver to free allocated memory
507 * Called if no device present or device being unloaded
508 */
509static void
510mptfc_target_destroy(struct scsi_target *starget)
511{
512 struct fc_rport *rport;
513 struct mptfc_rport_info *ri;
514
515 rport = starget_to_rport(starget);
516 if (rport) {
517 ri = *((struct mptfc_rport_info **)rport->dd_data);
518 if (ri) /* better be! */
519 ri->starget = NULL;
520 }
521 kfree(starget->hostdata);
522 starget->hostdata = NULL;
523}
524
525/*
526 * OS entry point to allow host driver to alloc memory
527 * for each scsi target. Called once per device the bus scan.
528 * Return non-zero if allocation fails.
529 */
530static int
531mptfc_target_alloc(struct scsi_target *starget)
532{
533 VirtTarget *vtarget;
534 struct fc_rport *rport;
535 struct mptfc_rport_info *ri;
536 int rc;
537
538 vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL);
539 if (!vtarget)
540 return -ENOMEM;
541 starget->hostdata = vtarget;
542
543 rc = -ENODEV;
544 rport = starget_to_rport(starget);
545 if (rport) {
546 ri = *((struct mptfc_rport_info **)rport->dd_data);
547 if (ri) { /* better be! */
548 vtarget->id = ri->pg0.CurrentTargetID;
549 vtarget->channel = ri->pg0.CurrentBus;
550 ri->starget = starget;
551 rc = 0;
552 }
553 }
554 if (rc != 0) {
555 kfree(vtarget);
556 starget->hostdata = NULL;
557 }
558
559 return rc;
560}
561/*
562 * mptfc_dump_lun_info
563 * @ioc
564 * @rport
565 * @sdev
566 *
567 */
568static void
569mptfc_dump_lun_info(MPT_ADAPTER *ioc, struct fc_rport *rport, struct scsi_device *sdev,
570 VirtTarget *vtarget)
571{
572 u64 nn, pn;
573 struct mptfc_rport_info *ri;
574
575 ri = *((struct mptfc_rport_info **)rport->dd_data);
576 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
577 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low;
578 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
579 "mptfc_slv_alloc.%d: num_luns %d, sdev.id %d, "
580 "CurrentTargetID %d, %x %llx %llx\n",
581 ioc->name,
582 sdev->host->host_no,
583 vtarget->num_luns,
584 sdev->id, ri->pg0.CurrentTargetID,
585 ri->pg0.PortIdentifier,
586 (unsigned long long)pn,
587 (unsigned long long)nn));
588}
589
590
591/*
592 * OS entry point to allow host driver to alloc memory
593 * for each scsi device. Called once per device the bus scan.
594 * Return non-zero if allocation fails.
595 * Init memory once per LUN.
596 */
597static int
598mptfc_slave_alloc(struct scsi_device *sdev)
599{
600 MPT_SCSI_HOST *hd;
601 VirtTarget *vtarget;
602 VirtDevice *vdevice;
603 struct scsi_target *starget;
604 struct fc_rport *rport;
605 MPT_ADAPTER *ioc;
606
607 starget = scsi_target(sdev);
608 rport = starget_to_rport(starget);
609
610 if (!rport || fc_remote_port_chkready(rport))
611 return -ENXIO;
612
613 hd = shost_priv(sdev->host);
614 ioc = hd->ioc;
615
616 vdevice = kzalloc(sizeof(VirtDevice), GFP_KERNEL);
617 if (!vdevice) {
618 printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n",
619 ioc->name, sizeof(VirtDevice));
620 return -ENOMEM;
621 }
622
623
624 sdev->hostdata = vdevice;
625 vtarget = starget->hostdata;
626
627 if (vtarget->num_luns == 0) {
628 vtarget->ioc_id = ioc->id;
629 vtarget->tflags = MPT_TARGET_FLAGS_Q_YES;
630 }
631
632 vdevice->vtarget = vtarget;
633 vdevice->lun = sdev->lun;
634
635 vtarget->num_luns++;
636
637
638 mptfc_dump_lun_info(ioc, rport, sdev, vtarget);
639
640 return 0;
641}
642
643static int
644mptfc_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *SCpnt)
645{
646 struct mptfc_rport_info *ri;
647 struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device));
648 int err;
649 VirtDevice *vdevice = SCpnt->device->hostdata;
650
651 if (!vdevice || !vdevice->vtarget) {
652 SCpnt->result = DID_NO_CONNECT << 16;
653 SCpnt->scsi_done(SCpnt);
654 return 0;
655 }
656
657 err = fc_remote_port_chkready(rport);
658 if (unlikely(err)) {
659 SCpnt->result = err;
660 SCpnt->scsi_done(SCpnt);
661 return 0;
662 }
663
664 /* dd_data is null until finished adding target */
665 ri = *((struct mptfc_rport_info **)rport->dd_data);
666 if (unlikely(!ri)) {
667 SCpnt->result = DID_IMM_RETRY << 16;
668 SCpnt->scsi_done(SCpnt);
669 return 0;
670 }
671
672 return mptscsih_qcmd(SCpnt);
673}
674
675/*
676 * mptfc_display_port_link_speed - displaying link speed
677 * @ioc: Pointer to MPT_ADAPTER structure
678 * @portnum: IOC Port number
679 * @pp0dest: port page0 data payload
680 *
681 */
682static void
683mptfc_display_port_link_speed(MPT_ADAPTER *ioc, int portnum, FCPortPage0_t *pp0dest)
684{
685 u8 old_speed, new_speed, state;
686 char *old, *new;
687
688 if (portnum >= 2)
689 return;
690
691 old_speed = ioc->fc_link_speed[portnum];
692 new_speed = pp0dest->CurrentSpeed;
693 state = pp0dest->PortState;
694
695 if (state != MPI_FCPORTPAGE0_PORTSTATE_OFFLINE &&
696 new_speed != MPI_FCPORTPAGE0_CURRENT_SPEED_UKNOWN) {
697
698 old = old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" :
699 old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" :
700 old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" :
701 "Unknown";
702 new = new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" :
703 new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" :
704 new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" :
705 "Unknown";
706 if (old_speed == 0)
707 printk(MYIOC_s_NOTE_FMT
708 "FC Link Established, Speed = %s\n",
709 ioc->name, new);
710 else if (old_speed != new_speed)
711 printk(MYIOC_s_WARN_FMT
712 "FC Link Speed Change, Old Speed = %s, New Speed = %s\n",
713 ioc->name, old, new);
714
715 ioc->fc_link_speed[portnum] = new_speed;
716 }
717}
718
719/*
720 * mptfc_GetFcPortPage0 - Fetch FCPort config Page0.
721 * @ioc: Pointer to MPT_ADAPTER structure
722 * @portnum: IOC Port number
723 *
724 * Return: 0 for success
725 * -ENOMEM if no memory available
726 * -EPERM if not allowed due to ISR context
727 * -EAGAIN if no msg frames currently available
728 * -EFAULT for non-successful reply or no reply (timeout)
729 * -EINVAL portnum arg out of range (hardwired to two elements)
730 */
731static int
732mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum)
733{
734 ConfigPageHeader_t hdr;
735 CONFIGPARMS cfg;
736 FCPortPage0_t *ppage0_alloc;
737 FCPortPage0_t *pp0dest;
738 dma_addr_t page0_dma;
739 int data_sz;
740 int copy_sz;
741 int rc;
742 int count = 400;
743
744 if (portnum > 1)
745 return -EINVAL;
746
747 /* Get FCPort Page 0 header */
748 hdr.PageVersion = 0;
749 hdr.PageLength = 0;
750 hdr.PageNumber = 0;
751 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
752 cfg.cfghdr.hdr = &hdr;
753 cfg.physAddr = -1;
754 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
755 cfg.dir = 0;
756 cfg.pageAddr = portnum;
757 cfg.timeout = 0;
758
759 if ((rc = mpt_config(ioc, &cfg)) != 0)
760 return rc;
761
762 if (hdr.PageLength == 0)
763 return 0;
764
765 data_sz = hdr.PageLength * 4;
766 rc = -ENOMEM;
767 ppage0_alloc = (FCPortPage0_t *) pci_alloc_consistent(ioc->pcidev, data_sz, &page0_dma);
768 if (ppage0_alloc) {
769
770 try_again:
771 memset((u8 *)ppage0_alloc, 0, data_sz);
772 cfg.physAddr = page0_dma;
773 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
774
775 if ((rc = mpt_config(ioc, &cfg)) == 0) {
776 /* save the data */
777 pp0dest = &ioc->fc_port_page0[portnum];
778 copy_sz = min_t(int, sizeof(FCPortPage0_t), data_sz);
779 memcpy(pp0dest, ppage0_alloc, copy_sz);
780
781 /*
782 * Normalize endianness of structure data,
783 * by byte-swapping all > 1 byte fields!
784 */
785 pp0dest->Flags = le32_to_cpu(pp0dest->Flags);
786 pp0dest->PortIdentifier = le32_to_cpu(pp0dest->PortIdentifier);
787 pp0dest->WWNN.Low = le32_to_cpu(pp0dest->WWNN.Low);
788 pp0dest->WWNN.High = le32_to_cpu(pp0dest->WWNN.High);
789 pp0dest->WWPN.Low = le32_to_cpu(pp0dest->WWPN.Low);
790 pp0dest->WWPN.High = le32_to_cpu(pp0dest->WWPN.High);
791 pp0dest->SupportedServiceClass = le32_to_cpu(pp0dest->SupportedServiceClass);
792 pp0dest->SupportedSpeeds = le32_to_cpu(pp0dest->SupportedSpeeds);
793 pp0dest->CurrentSpeed = le32_to_cpu(pp0dest->CurrentSpeed);
794 pp0dest->MaxFrameSize = le32_to_cpu(pp0dest->MaxFrameSize);
795 pp0dest->FabricWWNN.Low = le32_to_cpu(pp0dest->FabricWWNN.Low);
796 pp0dest->FabricWWNN.High = le32_to_cpu(pp0dest->FabricWWNN.High);
797 pp0dest->FabricWWPN.Low = le32_to_cpu(pp0dest->FabricWWPN.Low);
798 pp0dest->FabricWWPN.High = le32_to_cpu(pp0dest->FabricWWPN.High);
799 pp0dest->DiscoveredPortsCount = le32_to_cpu(pp0dest->DiscoveredPortsCount);
800 pp0dest->MaxInitiators = le32_to_cpu(pp0dest->MaxInitiators);
801
802 /*
803 * if still doing discovery,
804 * hang loose a while until finished
805 */
806 if ((pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) ||
807 (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE &&
808 (pp0dest->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_TYPE_MASK)
809 == MPI_FCPORTPAGE0_FLAGS_ATTACH_NO_INIT)) {
810 if (count-- > 0) {
811 msleep(100);
812 goto try_again;
813 }
814 printk(MYIOC_s_INFO_FMT "Firmware discovery not"
815 " complete.\n",
816 ioc->name);
817 }
818 mptfc_display_port_link_speed(ioc, portnum, pp0dest);
819 }
820
821 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) ppage0_alloc, page0_dma);
822 }
823
824 return rc;
825}
826
827static int
828mptfc_WriteFcPortPage1(MPT_ADAPTER *ioc, int portnum)
829{
830 ConfigPageHeader_t hdr;
831 CONFIGPARMS cfg;
832 int rc;
833
834 if (portnum > 1)
835 return -EINVAL;
836
837 if (!(ioc->fc_data.fc_port_page1[portnum].data))
838 return -EINVAL;
839
840 /* get fcport page 1 header */
841 hdr.PageVersion = 0;
842 hdr.PageLength = 0;
843 hdr.PageNumber = 1;
844 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
845 cfg.cfghdr.hdr = &hdr;
846 cfg.physAddr = -1;
847 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
848 cfg.dir = 0;
849 cfg.pageAddr = portnum;
850 cfg.timeout = 0;
851
852 if ((rc = mpt_config(ioc, &cfg)) != 0)
853 return rc;
854
855 if (hdr.PageLength == 0)
856 return -ENODEV;
857
858 if (hdr.PageLength*4 != ioc->fc_data.fc_port_page1[portnum].pg_sz)
859 return -EINVAL;
860
861 cfg.physAddr = ioc->fc_data.fc_port_page1[portnum].dma;
862 cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT;
863 cfg.dir = 1;
864
865 rc = mpt_config(ioc, &cfg);
866
867 return rc;
868}
869
870static int
871mptfc_GetFcPortPage1(MPT_ADAPTER *ioc, int portnum)
872{
873 ConfigPageHeader_t hdr;
874 CONFIGPARMS cfg;
875 FCPortPage1_t *page1_alloc;
876 dma_addr_t page1_dma;
877 int data_sz;
878 int rc;
879
880 if (portnum > 1)
881 return -EINVAL;
882
883 /* get fcport page 1 header */
884 hdr.PageVersion = 0;
885 hdr.PageLength = 0;
886 hdr.PageNumber = 1;
887 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
888 cfg.cfghdr.hdr = &hdr;
889 cfg.physAddr = -1;
890 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
891 cfg.dir = 0;
892 cfg.pageAddr = portnum;
893 cfg.timeout = 0;
894
895 if ((rc = mpt_config(ioc, &cfg)) != 0)
896 return rc;
897
898 if (hdr.PageLength == 0)
899 return -ENODEV;
900
901start_over:
902
903 if (ioc->fc_data.fc_port_page1[portnum].data == NULL) {
904 data_sz = hdr.PageLength * 4;
905 if (data_sz < sizeof(FCPortPage1_t))
906 data_sz = sizeof(FCPortPage1_t);
907
908 page1_alloc = (FCPortPage1_t *) pci_alloc_consistent(ioc->pcidev,
909 data_sz,
910 &page1_dma);
911 if (!page1_alloc)
912 return -ENOMEM;
913 }
914 else {
915 page1_alloc = ioc->fc_data.fc_port_page1[portnum].data;
916 page1_dma = ioc->fc_data.fc_port_page1[portnum].dma;
917 data_sz = ioc->fc_data.fc_port_page1[portnum].pg_sz;
918 if (hdr.PageLength * 4 > data_sz) {
919 ioc->fc_data.fc_port_page1[portnum].data = NULL;
920 pci_free_consistent(ioc->pcidev, data_sz, (u8 *)
921 page1_alloc, page1_dma);
922 goto start_over;
923 }
924 }
925
926 memset(page1_alloc,0,data_sz);
927
928 cfg.physAddr = page1_dma;
929 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
930
931 if ((rc = mpt_config(ioc, &cfg)) == 0) {
932 ioc->fc_data.fc_port_page1[portnum].data = page1_alloc;
933 ioc->fc_data.fc_port_page1[portnum].pg_sz = data_sz;
934 ioc->fc_data.fc_port_page1[portnum].dma = page1_dma;
935 }
936 else {
937 ioc->fc_data.fc_port_page1[portnum].data = NULL;
938 pci_free_consistent(ioc->pcidev, data_sz, (u8 *)
939 page1_alloc, page1_dma);
940 }
941
942 return rc;
943}
944
945static void
946mptfc_SetFcPortPage1_defaults(MPT_ADAPTER *ioc)
947{
948 int ii;
949 FCPortPage1_t *pp1;
950
951 #define MPTFC_FW_DEVICE_TIMEOUT (1)
952 #define MPTFC_FW_IO_PEND_TIMEOUT (1)
953 #define ON_FLAGS (MPI_FCPORTPAGE1_FLAGS_IMMEDIATE_ERROR_REPLY)
954 #define OFF_FLAGS (MPI_FCPORTPAGE1_FLAGS_VERBOSE_RESCAN_EVENTS)
955
956 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) {
957 if (mptfc_GetFcPortPage1(ioc, ii) != 0)
958 continue;
959 pp1 = ioc->fc_data.fc_port_page1[ii].data;
960 if ((pp1->InitiatorDeviceTimeout == MPTFC_FW_DEVICE_TIMEOUT)
961 && (pp1->InitiatorIoPendTimeout == MPTFC_FW_IO_PEND_TIMEOUT)
962 && ((pp1->Flags & ON_FLAGS) == ON_FLAGS)
963 && ((pp1->Flags & OFF_FLAGS) == 0))
964 continue;
965 pp1->InitiatorDeviceTimeout = MPTFC_FW_DEVICE_TIMEOUT;
966 pp1->InitiatorIoPendTimeout = MPTFC_FW_IO_PEND_TIMEOUT;
967 pp1->Flags &= ~OFF_FLAGS;
968 pp1->Flags |= ON_FLAGS;
969 mptfc_WriteFcPortPage1(ioc, ii);
970 }
971}
972
973
974static void
975mptfc_init_host_attr(MPT_ADAPTER *ioc,int portnum)
976{
977 unsigned class = 0;
978 unsigned cos = 0;
979 unsigned speed;
980 unsigned port_type;
981 unsigned port_state;
982 FCPortPage0_t *pp0;
983 struct Scsi_Host *sh;
984 char *sn;
985
986 /* don't know what to do as only one scsi (fc) host was allocated */
987 if (portnum != 0)
988 return;
989
990 pp0 = &ioc->fc_port_page0[portnum];
991 sh = ioc->sh;
992
993 sn = fc_host_symbolic_name(sh);
994 snprintf(sn, FC_SYMBOLIC_NAME_SIZE, "%s %s%08xh",
995 ioc->prod_name,
996 MPT_FW_REV_MAGIC_ID_STRING,
997 ioc->facts.FWVersion.Word);
998
999 fc_host_tgtid_bind_type(sh) = FC_TGTID_BIND_BY_WWPN;
1000
1001 fc_host_maxframe_size(sh) = pp0->MaxFrameSize;
1002
1003 fc_host_node_name(sh) =
1004 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low;
1005
1006 fc_host_port_name(sh) =
1007 (u64)pp0->WWPN.High << 32 | (u64)pp0->WWPN.Low;
1008
1009 fc_host_port_id(sh) = pp0->PortIdentifier;
1010
1011 class = pp0->SupportedServiceClass;
1012 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_1)
1013 cos |= FC_COS_CLASS1;
1014 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_2)
1015 cos |= FC_COS_CLASS2;
1016 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_3)
1017 cos |= FC_COS_CLASS3;
1018 fc_host_supported_classes(sh) = cos;
1019
1020 if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT)
1021 speed = FC_PORTSPEED_1GBIT;
1022 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT)
1023 speed = FC_PORTSPEED_2GBIT;
1024 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT)
1025 speed = FC_PORTSPEED_4GBIT;
1026 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_10GBIT)
1027 speed = FC_PORTSPEED_10GBIT;
1028 else
1029 speed = FC_PORTSPEED_UNKNOWN;
1030 fc_host_speed(sh) = speed;
1031
1032 speed = 0;
1033 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_1GBIT_SPEED)
1034 speed |= FC_PORTSPEED_1GBIT;
1035 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_2GBIT_SPEED)
1036 speed |= FC_PORTSPEED_2GBIT;
1037 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_4GBIT_SPEED)
1038 speed |= FC_PORTSPEED_4GBIT;
1039 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_10GBIT_SPEED)
1040 speed |= FC_PORTSPEED_10GBIT;
1041 fc_host_supported_speeds(sh) = speed;
1042
1043 port_state = FC_PORTSTATE_UNKNOWN;
1044 if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE)
1045 port_state = FC_PORTSTATE_ONLINE;
1046 else if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_OFFLINE)
1047 port_state = FC_PORTSTATE_LINKDOWN;
1048 fc_host_port_state(sh) = port_state;
1049
1050 port_type = FC_PORTTYPE_UNKNOWN;
1051 if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_POINT_TO_POINT)
1052 port_type = FC_PORTTYPE_PTP;
1053 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PRIVATE_LOOP)
1054 port_type = FC_PORTTYPE_LPORT;
1055 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PUBLIC_LOOP)
1056 port_type = FC_PORTTYPE_NLPORT;
1057 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_FABRIC_DIRECT)
1058 port_type = FC_PORTTYPE_NPORT;
1059 fc_host_port_type(sh) = port_type;
1060
1061 fc_host_fabric_name(sh) =
1062 (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_FABRIC_WWN_VALID) ?
1063 (u64) pp0->FabricWWNN.High << 32 | (u64) pp0->FabricWWPN.Low :
1064 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low;
1065
1066}
1067
1068static void
1069mptfc_link_status_change(struct work_struct *work)
1070{
1071 MPT_ADAPTER *ioc =
1072 container_of(work, MPT_ADAPTER, fc_rescan_work);
1073 int ii;
1074
1075 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++)
1076 (void) mptfc_GetFcPortPage0(ioc, ii);
1077
1078}
1079
1080static void
1081mptfc_setup_reset(struct work_struct *work)
1082{
1083 MPT_ADAPTER *ioc =
1084 container_of(work, MPT_ADAPTER, fc_setup_reset_work);
1085 u64 pn;
1086 struct mptfc_rport_info *ri;
1087 struct scsi_target *starget;
1088 VirtTarget *vtarget;
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 starget = ri->starget;
1097 if (starget) {
1098 vtarget = starget->hostdata;
1099 if (vtarget)
1100 vtarget->deleted = 1;
1101 }
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
1114static void
1115mptfc_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 struct scsi_target *starget;
1123 VirtTarget *vtarget;
1124
1125 /* start by tagging all ports as missing */
1126 list_for_each_entry(ri, &ioc->fc_rports, list) {
1127 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) {
1128 ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING;
1129 }
1130 }
1131
1132 /*
1133 * now rescan devices known to adapter,
1134 * will reregister existing rports
1135 */
1136 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1137 (void) mptfc_GetFcPortPage0(ioc, ii);
1138 mptfc_init_host_attr(ioc, ii); /* refresh */
1139 mptfc_GetFcDevPage0(ioc, ii, mptfc_register_dev);
1140 }
1141
1142 /* delete devices still missing */
1143 list_for_each_entry(ri, &ioc->fc_rports, list) {
1144 /* if newly missing, delete it */
1145 if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) {
1146
1147 ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED|
1148 MPT_RPORT_INFO_FLAGS_MISSING);
1149 fc_remote_port_delete(ri->rport); /* won't sleep */
1150 ri->rport = NULL;
1151 starget = ri->starget;
1152 if (starget) {
1153 vtarget = starget->hostdata;
1154 if (vtarget)
1155 vtarget->deleted = 1;
1156 }
1157
1158 pn = (u64)ri->pg0.WWPN.High << 32 |
1159 (u64)ri->pg0.WWPN.Low;
1160 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
1161 "mptfc_rescan.%d: %llx deleted\n",
1162 ioc->name,
1163 ioc->sh->host_no,
1164 (unsigned long long)pn));
1165 }
1166 }
1167}
1168
1169static int
1170mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id)
1171{
1172 struct Scsi_Host *sh;
1173 MPT_SCSI_HOST *hd;
1174 MPT_ADAPTER *ioc;
1175 unsigned long flags;
1176 int ii;
1177 int numSGE = 0;
1178 int scale;
1179 int ioc_cap;
1180 int error=0;
1181 int r;
1182
1183 if ((r = mpt_attach(pdev,id)) != 0)
1184 return r;
1185
1186 ioc = pci_get_drvdata(pdev);
1187 ioc->DoneCtx = mptfcDoneCtx;
1188 ioc->TaskCtx = mptfcTaskCtx;
1189 ioc->InternalCtx = mptfcInternalCtx;
1190
1191 /* Added sanity check on readiness of the MPT adapter.
1192 */
1193 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) {
1194 printk(MYIOC_s_WARN_FMT
1195 "Skipping because it's not operational!\n",
1196 ioc->name);
1197 error = -ENODEV;
1198 goto out_mptfc_probe;
1199 }
1200
1201 if (!ioc->active) {
1202 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n",
1203 ioc->name);
1204 error = -ENODEV;
1205 goto out_mptfc_probe;
1206 }
1207
1208 /* Sanity check - ensure at least 1 port is INITIATOR capable
1209 */
1210 ioc_cap = 0;
1211 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1212 if (ioc->pfacts[ii].ProtocolFlags &
1213 MPI_PORTFACTS_PROTOCOL_INITIATOR)
1214 ioc_cap ++;
1215 }
1216
1217 if (!ioc_cap) {
1218 printk(MYIOC_s_WARN_FMT
1219 "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n",
1220 ioc->name, ioc);
1221 return 0;
1222 }
1223
1224 sh = scsi_host_alloc(&mptfc_driver_template, sizeof(MPT_SCSI_HOST));
1225
1226 if (!sh) {
1227 printk(MYIOC_s_WARN_FMT
1228 "Unable to register controller with SCSI subsystem\n",
1229 ioc->name);
1230 error = -1;
1231 goto out_mptfc_probe;
1232 }
1233
1234 spin_lock_init(&ioc->fc_rescan_work_lock);
1235 INIT_WORK(&ioc->fc_rescan_work, mptfc_rescan_devices);
1236 INIT_WORK(&ioc->fc_setup_reset_work, mptfc_setup_reset);
1237 INIT_WORK(&ioc->fc_lsc_work, mptfc_link_status_change);
1238
1239 spin_lock_irqsave(&ioc->FreeQlock, flags);
1240
1241 /* Attach the SCSI Host to the IOC structure
1242 */
1243 ioc->sh = sh;
1244
1245 sh->io_port = 0;
1246 sh->n_io_port = 0;
1247 sh->irq = 0;
1248
1249 /* set 16 byte cdb's */
1250 sh->max_cmd_len = 16;
1251
1252 sh->max_id = ioc->pfacts->MaxDevices;
1253 sh->max_lun = max_lun;
1254
1255 /* Required entry.
1256 */
1257 sh->unique_id = ioc->id;
1258
1259 /* Verify that we won't exceed the maximum
1260 * number of chain buffers
1261 * We can optimize: ZZ = req_sz/sizeof(SGE)
1262 * For 32bit SGE's:
1263 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ
1264 * + (req_sz - 64)/sizeof(SGE)
1265 * A slightly different algorithm is required for
1266 * 64bit SGEs.
1267 */
1268 scale = ioc->req_sz/ioc->SGE_size;
1269 if (ioc->sg_addr_size == sizeof(u64)) {
1270 numSGE = (scale - 1) *
1271 (ioc->facts.MaxChainDepth-1) + scale +
1272 (ioc->req_sz - 60) / ioc->SGE_size;
1273 } else {
1274 numSGE = 1 + (scale - 1) *
1275 (ioc->facts.MaxChainDepth-1) + scale +
1276 (ioc->req_sz - 64) / ioc->SGE_size;
1277 }
1278
1279 if (numSGE < sh->sg_tablesize) {
1280 /* Reset this value */
1281 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1282 "Resetting sg_tablesize to %d from %d\n",
1283 ioc->name, numSGE, sh->sg_tablesize));
1284 sh->sg_tablesize = numSGE;
1285 }
1286
1287 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1288
1289 hd = shost_priv(sh);
1290 hd->ioc = ioc;
1291
1292 /* SCSI needs scsi_cmnd lookup table!
1293 * (with size equal to req_depth*PtrSz!)
1294 */
1295 ioc->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC);
1296 if (!ioc->ScsiLookup) {
1297 error = -ENOMEM;
1298 goto out_mptfc_probe;
1299 }
1300 spin_lock_init(&ioc->scsi_lookup_lock);
1301
1302 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScsiLookup @ %p\n",
1303 ioc->name, ioc->ScsiLookup));
1304
1305 hd->last_queue_full = 0;
1306
1307 sh->transportt = mptfc_transport_template;
1308 error = scsi_add_host (sh, &ioc->pcidev->dev);
1309 if(error) {
1310 dprintk(ioc, printk(MYIOC_s_ERR_FMT
1311 "scsi_add_host failed\n", ioc->name));
1312 goto out_mptfc_probe;
1313 }
1314
1315 /* initialize workqueue */
1316
1317 snprintf(ioc->fc_rescan_work_q_name, sizeof(ioc->fc_rescan_work_q_name),
1318 "mptfc_wq_%d", sh->host_no);
1319 ioc->fc_rescan_work_q =
1320 alloc_ordered_workqueue(ioc->fc_rescan_work_q_name,
1321 WQ_MEM_RECLAIM);
1322 if (!ioc->fc_rescan_work_q) {
1323 error = -ENOMEM;
1324 goto out_mptfc_host;
1325 }
1326
1327 /*
1328 * Pre-fetch FC port WWN and stuff...
1329 * (FCPortPage0_t stuff)
1330 */
1331 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1332 (void) mptfc_GetFcPortPage0(ioc, ii);
1333 }
1334 mptfc_SetFcPortPage1_defaults(ioc);
1335
1336 /*
1337 * scan for rports -
1338 * by doing it via the workqueue, some locking is eliminated
1339 */
1340
1341 queue_work(ioc->fc_rescan_work_q, &ioc->fc_rescan_work);
1342 flush_workqueue(ioc->fc_rescan_work_q);
1343
1344 return 0;
1345
1346out_mptfc_host:
1347 scsi_remove_host(sh);
1348
1349out_mptfc_probe:
1350
1351 mptscsih_remove(pdev);
1352 return error;
1353}
1354
1355static struct pci_driver mptfc_driver = {
1356 .name = "mptfc",
1357 .id_table = mptfc_pci_table,
1358 .probe = mptfc_probe,
1359 .remove = mptfc_remove,
1360 .shutdown = mptscsih_shutdown,
1361#ifdef CONFIG_PM
1362 .suspend = mptscsih_suspend,
1363 .resume = mptscsih_resume,
1364#endif
1365};
1366
1367static int
1368mptfc_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
1369{
1370 MPT_SCSI_HOST *hd;
1371 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
1372 unsigned long flags;
1373 int rc=1;
1374
1375 if (ioc->bus_type != FC)
1376 return 0;
1377
1378 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n",
1379 ioc->name, event));
1380
1381 if (ioc->sh == NULL ||
1382 ((hd = shost_priv(ioc->sh)) == NULL))
1383 return 1;
1384
1385 switch (event) {
1386 case MPI_EVENT_RESCAN:
1387 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1388 if (ioc->fc_rescan_work_q) {
1389 queue_work(ioc->fc_rescan_work_q,
1390 &ioc->fc_rescan_work);
1391 }
1392 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1393 break;
1394 case MPI_EVENT_LINK_STATUS_CHANGE:
1395 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1396 if (ioc->fc_rescan_work_q) {
1397 queue_work(ioc->fc_rescan_work_q,
1398 &ioc->fc_lsc_work);
1399 }
1400 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1401 break;
1402 default:
1403 rc = mptscsih_event_process(ioc,pEvReply);
1404 break;
1405 }
1406 return rc;
1407}
1408
1409static int
1410mptfc_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
1411{
1412 int rc;
1413 unsigned long flags;
1414
1415 rc = mptscsih_ioc_reset(ioc,reset_phase);
1416 if ((ioc->bus_type != FC) || (!rc))
1417 return rc;
1418
1419
1420 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1421 ": IOC %s_reset routed to FC host driver!\n",ioc->name,
1422 reset_phase==MPT_IOC_SETUP_RESET ? "setup" : (
1423 reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post")));
1424
1425 if (reset_phase == MPT_IOC_SETUP_RESET) {
1426 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1427 if (ioc->fc_rescan_work_q) {
1428 queue_work(ioc->fc_rescan_work_q,
1429 &ioc->fc_setup_reset_work);
1430 }
1431 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1432 }
1433
1434 else if (reset_phase == MPT_IOC_PRE_RESET) {
1435 }
1436
1437 else { /* MPT_IOC_POST_RESET */
1438 mptfc_SetFcPortPage1_defaults(ioc);
1439 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1440 if (ioc->fc_rescan_work_q) {
1441 queue_work(ioc->fc_rescan_work_q,
1442 &ioc->fc_rescan_work);
1443 }
1444 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1445 }
1446 return 1;
1447}
1448
1449/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1450/**
1451 * mptfc_init - Register MPT adapter(s) as SCSI host(s) with SCSI mid-layer.
1452 *
1453 * Returns 0 for success, non-zero for failure.
1454 */
1455static int __init
1456mptfc_init(void)
1457{
1458 int error;
1459
1460 show_mptmod_ver(my_NAME, my_VERSION);
1461
1462 /* sanity check module parameters */
1463 if (mptfc_dev_loss_tmo <= 0)
1464 mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO;
1465
1466 mptfc_transport_template =
1467 fc_attach_transport(&mptfc_transport_functions);
1468
1469 if (!mptfc_transport_template)
1470 return -ENODEV;
1471
1472 mptfcDoneCtx = mpt_register(mptscsih_io_done, MPTFC_DRIVER,
1473 "mptscsih_scandv_complete");
1474 mptfcTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTFC_DRIVER,
1475 "mptscsih_scandv_complete");
1476 mptfcInternalCtx = mpt_register(mptscsih_scandv_complete, MPTFC_DRIVER,
1477 "mptscsih_scandv_complete");
1478
1479 mpt_event_register(mptfcDoneCtx, mptfc_event_process);
1480 mpt_reset_register(mptfcDoneCtx, mptfc_ioc_reset);
1481
1482 error = pci_register_driver(&mptfc_driver);
1483 if (error)
1484 fc_release_transport(mptfc_transport_template);
1485
1486 return error;
1487}
1488
1489/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1490/**
1491 * mptfc_remove - Remove fc infrastructure for devices
1492 * @pdev: Pointer to pci_dev structure
1493 *
1494 */
1495static void mptfc_remove(struct pci_dev *pdev)
1496{
1497 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1498 struct mptfc_rport_info *p, *n;
1499 struct workqueue_struct *work_q;
1500 unsigned long flags;
1501 int ii;
1502
1503 /* destroy workqueue */
1504 if ((work_q=ioc->fc_rescan_work_q)) {
1505 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1506 ioc->fc_rescan_work_q = NULL;
1507 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1508 destroy_workqueue(work_q);
1509 }
1510
1511 fc_remove_host(ioc->sh);
1512
1513 list_for_each_entry_safe(p, n, &ioc->fc_rports, list) {
1514 list_del(&p->list);
1515 kfree(p);
1516 }
1517
1518 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) {
1519 if (ioc->fc_data.fc_port_page1[ii].data) {
1520 pci_free_consistent(ioc->pcidev,
1521 ioc->fc_data.fc_port_page1[ii].pg_sz,
1522 (u8 *) ioc->fc_data.fc_port_page1[ii].data,
1523 ioc->fc_data.fc_port_page1[ii].dma);
1524 ioc->fc_data.fc_port_page1[ii].data = NULL;
1525 }
1526 }
1527
1528 scsi_remove_host(ioc->sh);
1529
1530 mptscsih_remove(pdev);
1531}
1532
1533/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1534/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1535/**
1536 * mptfc_exit - Unregisters MPT adapter(s)
1537 *
1538 */
1539static void __exit
1540mptfc_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
1553module_init(mptfc_init);
1554module_exit(mptfc_exit);