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