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1/*
2 * linux/drivers/message/fusion/mptfc.c
3 * For use with LSI PCI chip/adapter(s)
4 * running LSI Fusion MPT (Message Passing Technology) firmware.
5 *
6 * Copyright (c) 1999-2008 LSI Corporation
7 * (mailto:DL-MPTFusionLinux@lsi.com)
8 *
9 */
10/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
11/*
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; version 2 of the License.
15
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
20
21 NO WARRANTY
22 THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
23 CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
24 LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
25 MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
26 solely responsible for determining the appropriateness of using and
27 distributing the Program and assumes all risks associated with its
28 exercise of rights under this Agreement, including but not limited to
29 the risks and costs of program errors, damage to or loss of data,
30 programs or equipment, and unavailability or interruption of operations.
31
32 DISCLAIMER OF LIABILITY
33 NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
34 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
35 DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
36 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
37 TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
38 USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
39 HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
40
41 You should have received a copy of the GNU General Public License
42 along with this program; if not, write to the Free Software
43 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
44*/
45/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
46#include <linux/module.h>
47#include <linux/kernel.h>
48#include <linux/init.h>
49#include <linux/errno.h>
50#include <linux/kdev_t.h>
51#include <linux/blkdev.h>
52#include <linux/delay.h> /* for mdelay */
53#include <linux/interrupt.h> /* needed for in_interrupt() proto */
54#include <linux/reboot.h> /* notifier code */
55#include <linux/workqueue.h>
56#include <linux/sort.h>
57#include <linux/slab.h>
58
59#include <scsi/scsi.h>
60#include <scsi/scsi_cmnd.h>
61#include <scsi/scsi_device.h>
62#include <scsi/scsi_host.h>
63#include <scsi/scsi_tcq.h>
64#include <scsi/scsi_transport_fc.h>
65
66#include "mptbase.h"
67#include "mptscsih.h"
68
69/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
70#define my_NAME "Fusion MPT FC Host driver"
71#define my_VERSION MPT_LINUX_VERSION_COMMON
72#define MYNAM "mptfc"
73
74MODULE_AUTHOR(MODULEAUTHOR);
75MODULE_DESCRIPTION(my_NAME);
76MODULE_LICENSE("GPL");
77MODULE_VERSION(my_VERSION);
78
79/* Command line args */
80#define MPTFC_DEV_LOSS_TMO (60)
81static int mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO; /* reasonable default */
82module_param(mptfc_dev_loss_tmo, int, 0);
83MODULE_PARM_DESC(mptfc_dev_loss_tmo, " Initial time the driver programs the "
84 " transport to wait for an rport to "
85 " return following a device loss event."
86 " Default=60.");
87
88/* scsi-mid layer global parmeter is max_report_luns, which is 511 */
89#define MPTFC_MAX_LUN (16895)
90static int max_lun = MPTFC_MAX_LUN;
91module_param(max_lun, int, 0);
92MODULE_PARM_DESC(max_lun, " max lun, default=16895 ");
93
94static u8 mptfcDoneCtx = MPT_MAX_PROTOCOL_DRIVERS;
95static u8 mptfcTaskCtx = MPT_MAX_PROTOCOL_DRIVERS;
96static u8 mptfcInternalCtx = MPT_MAX_PROTOCOL_DRIVERS;
97
98static int mptfc_target_alloc(struct scsi_target *starget);
99static int mptfc_slave_alloc(struct scsi_device *sdev);
100static int mptfc_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *SCpnt);
101static void mptfc_target_destroy(struct scsi_target *starget);
102static void mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout);
103static void __devexit 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);
107static int mptfc_host_reset(struct scsi_cmnd *SCpnt);
108
109static struct scsi_host_template mptfc_driver_template = {
110 .module = THIS_MODULE,
111 .proc_name = "mptfc",
112 .proc_info = mptscsih_proc_info,
113 .name = "MPT FC Host",
114 .info = mptscsih_info,
115 .queuecommand = mptfc_qcmd,
116 .target_alloc = mptfc_target_alloc,
117 .slave_alloc = mptfc_slave_alloc,
118 .slave_configure = mptscsih_slave_configure,
119 .target_destroy = mptfc_target_destroy,
120 .slave_destroy = mptscsih_slave_destroy,
121 .change_queue_depth = mptscsih_change_queue_depth,
122 .eh_abort_handler = mptfc_abort,
123 .eh_device_reset_handler = mptfc_dev_reset,
124 .eh_bus_reset_handler = mptfc_bus_reset,
125 .eh_host_reset_handler = mptfc_host_reset,
126 .bios_param = mptscsih_bios_param,
127 .can_queue = MPT_FC_CAN_QUEUE,
128 .this_id = -1,
129 .sg_tablesize = MPT_SCSI_SG_DEPTH,
130 .max_sectors = 8192,
131 .cmd_per_lun = 7,
132 .use_clustering = ENABLE_CLUSTERING,
133 .shost_attrs = mptscsih_host_attrs,
134};
135
136/****************************************************************************
137 * Supported hardware
138 */
139
140static struct pci_device_id mptfc_pci_table[] = {
141 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC909,
142 PCI_ANY_ID, PCI_ANY_ID },
143 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC919,
144 PCI_ANY_ID, PCI_ANY_ID },
145 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC929,
146 PCI_ANY_ID, PCI_ANY_ID },
147 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC919X,
148 PCI_ANY_ID, PCI_ANY_ID },
149 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC929X,
150 PCI_ANY_ID, PCI_ANY_ID },
151 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC939X,
152 PCI_ANY_ID, PCI_ANY_ID },
153 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC949X,
154 PCI_ANY_ID, PCI_ANY_ID },
155 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC949E,
156 PCI_ANY_ID, PCI_ANY_ID },
157 { PCI_VENDOR_ID_BROCADE, MPI_MANUFACTPAGE_DEVICEID_FC949E,
158 PCI_ANY_ID, PCI_ANY_ID },
159 {0} /* Terminating entry */
160};
161MODULE_DEVICE_TABLE(pci, mptfc_pci_table);
162
163static struct scsi_transport_template *mptfc_transport_template = NULL;
164
165static struct fc_function_template mptfc_transport_functions = {
166 .dd_fcrport_size = 8,
167 .show_host_node_name = 1,
168 .show_host_port_name = 1,
169 .show_host_supported_classes = 1,
170 .show_host_port_id = 1,
171 .show_rport_supported_classes = 1,
172 .show_starget_node_name = 1,
173 .show_starget_port_name = 1,
174 .show_starget_port_id = 1,
175 .set_rport_dev_loss_tmo = mptfc_set_rport_loss_tmo,
176 .show_rport_dev_loss_tmo = 1,
177 .show_host_supported_speeds = 1,
178 .show_host_maxframe_size = 1,
179 .show_host_speed = 1,
180 .show_host_fabric_name = 1,
181 .show_host_port_type = 1,
182 .show_host_port_state = 1,
183 .show_host_symbolic_name = 1,
184};
185
186static int
187mptfc_block_error_handler(struct scsi_cmnd *SCpnt,
188 int (*func)(struct scsi_cmnd *SCpnt),
189 const char *caller)
190{
191 MPT_SCSI_HOST *hd;
192 struct scsi_device *sdev = SCpnt->device;
193 struct Scsi_Host *shost = sdev->host;
194 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
195 unsigned long flags;
196 int ready;
197 MPT_ADAPTER *ioc;
198 int loops = 40; /* seconds */
199
200 hd = shost_priv(SCpnt->device->host);
201 ioc = hd->ioc;
202 spin_lock_irqsave(shost->host_lock, flags);
203 while ((ready = fc_remote_port_chkready(rport) >> 16) == DID_IMM_RETRY
204 || (loops > 0 && ioc->active == 0)) {
205 spin_unlock_irqrestore(shost->host_lock, flags);
206 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
207 "mptfc_block_error_handler.%d: %d:%d, port status is "
208 "%x, active flag %d, deferring %s recovery.\n",
209 ioc->name, ioc->sh->host_no,
210 SCpnt->device->id, SCpnt->device->lun,
211 ready, ioc->active, caller));
212 msleep(1000);
213 spin_lock_irqsave(shost->host_lock, flags);
214 loops --;
215 }
216 spin_unlock_irqrestore(shost->host_lock, flags);
217
218 if (ready == DID_NO_CONNECT || !SCpnt->device->hostdata
219 || ioc->active == 0) {
220 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
221 "%s.%d: %d:%d, failing recovery, "
222 "port state %x, active %d, vdevice %p.\n", caller,
223 ioc->name, ioc->sh->host_no,
224 SCpnt->device->id, SCpnt->device->lun, ready,
225 ioc->active, SCpnt->device->hostdata));
226 return FAILED;
227 }
228 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
229 "%s.%d: %d:%d, executing recovery.\n", caller,
230 ioc->name, ioc->sh->host_no,
231 SCpnt->device->id, SCpnt->device->lun));
232 return (*func)(SCpnt);
233}
234
235static int
236mptfc_abort(struct scsi_cmnd *SCpnt)
237{
238 return
239 mptfc_block_error_handler(SCpnt, mptscsih_abort, __func__);
240}
241
242static int
243mptfc_dev_reset(struct scsi_cmnd *SCpnt)
244{
245 return
246 mptfc_block_error_handler(SCpnt, mptscsih_dev_reset, __func__);
247}
248
249static int
250mptfc_bus_reset(struct scsi_cmnd *SCpnt)
251{
252 return
253 mptfc_block_error_handler(SCpnt, mptscsih_bus_reset, __func__);
254}
255
256static int
257mptfc_host_reset(struct scsi_cmnd *SCpnt)
258{
259 return
260 mptfc_block_error_handler(SCpnt, mptscsih_host_reset, __func__);
261}
262
263static void
264mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
265{
266 if (timeout > 0)
267 rport->dev_loss_tmo = timeout;
268 else
269 rport->dev_loss_tmo = mptfc_dev_loss_tmo;
270}
271
272static int
273mptfc_FcDevPage0_cmp_func(const void *a, const void *b)
274{
275 FCDevicePage0_t **aa = (FCDevicePage0_t **)a;
276 FCDevicePage0_t **bb = (FCDevicePage0_t **)b;
277
278 if ((*aa)->CurrentBus == (*bb)->CurrentBus) {
279 if ((*aa)->CurrentTargetID == (*bb)->CurrentTargetID)
280 return 0;
281 if ((*aa)->CurrentTargetID < (*bb)->CurrentTargetID)
282 return -1;
283 return 1;
284 }
285 if ((*aa)->CurrentBus < (*bb)->CurrentBus)
286 return -1;
287 return 1;
288}
289
290static int
291mptfc_GetFcDevPage0(MPT_ADAPTER *ioc, int ioc_port,
292 void(*func)(MPT_ADAPTER *ioc,int channel, FCDevicePage0_t *arg))
293{
294 ConfigPageHeader_t hdr;
295 CONFIGPARMS cfg;
296 FCDevicePage0_t *ppage0_alloc, *fc;
297 dma_addr_t page0_dma;
298 int data_sz;
299 int ii;
300
301 FCDevicePage0_t *p0_array=NULL, *p_p0;
302 FCDevicePage0_t **pp0_array=NULL, **p_pp0;
303
304 int rc = -ENOMEM;
305 U32 port_id = 0xffffff;
306 int num_targ = 0;
307 int max_bus = ioc->facts.MaxBuses;
308 int max_targ;
309
310 max_targ = (ioc->facts.MaxDevices == 0) ? 256 : ioc->facts.MaxDevices;
311
312 data_sz = sizeof(FCDevicePage0_t) * max_bus * max_targ;
313 p_p0 = p0_array = kzalloc(data_sz, GFP_KERNEL);
314 if (!p0_array)
315 goto out;
316
317 data_sz = sizeof(FCDevicePage0_t *) * max_bus * max_targ;
318 p_pp0 = pp0_array = kzalloc(data_sz, GFP_KERNEL);
319 if (!pp0_array)
320 goto out;
321
322 do {
323 /* Get FC Device Page 0 header */
324 hdr.PageVersion = 0;
325 hdr.PageLength = 0;
326 hdr.PageNumber = 0;
327 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_DEVICE;
328 cfg.cfghdr.hdr = &hdr;
329 cfg.physAddr = -1;
330 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
331 cfg.dir = 0;
332 cfg.pageAddr = port_id;
333 cfg.timeout = 0;
334
335 if ((rc = mpt_config(ioc, &cfg)) != 0)
336 break;
337
338 if (hdr.PageLength <= 0)
339 break;
340
341 data_sz = hdr.PageLength * 4;
342 ppage0_alloc = pci_alloc_consistent(ioc->pcidev, data_sz,
343 &page0_dma);
344 rc = -ENOMEM;
345 if (!ppage0_alloc)
346 break;
347
348 cfg.physAddr = page0_dma;
349 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
350
351 if ((rc = mpt_config(ioc, &cfg)) == 0) {
352 ppage0_alloc->PortIdentifier =
353 le32_to_cpu(ppage0_alloc->PortIdentifier);
354
355 ppage0_alloc->WWNN.Low =
356 le32_to_cpu(ppage0_alloc->WWNN.Low);
357
358 ppage0_alloc->WWNN.High =
359 le32_to_cpu(ppage0_alloc->WWNN.High);
360
361 ppage0_alloc->WWPN.Low =
362 le32_to_cpu(ppage0_alloc->WWPN.Low);
363
364 ppage0_alloc->WWPN.High =
365 le32_to_cpu(ppage0_alloc->WWPN.High);
366
367 ppage0_alloc->BBCredit =
368 le16_to_cpu(ppage0_alloc->BBCredit);
369
370 ppage0_alloc->MaxRxFrameSize =
371 le16_to_cpu(ppage0_alloc->MaxRxFrameSize);
372
373 port_id = ppage0_alloc->PortIdentifier;
374 num_targ++;
375 *p_p0 = *ppage0_alloc; /* save data */
376 *p_pp0++ = p_p0++; /* save addr */
377 }
378 pci_free_consistent(ioc->pcidev, data_sz,
379 (u8 *) ppage0_alloc, page0_dma);
380 if (rc != 0)
381 break;
382
383 } while (port_id <= 0xff0000);
384
385 if (num_targ) {
386 /* sort array */
387 if (num_targ > 1)
388 sort (pp0_array, num_targ, sizeof(FCDevicePage0_t *),
389 mptfc_FcDevPage0_cmp_func, NULL);
390 /* call caller's func for each targ */
391 for (ii = 0; ii < num_targ; ii++) {
392 fc = *(pp0_array+ii);
393 func(ioc, ioc_port, fc);
394 }
395 }
396
397 out:
398 kfree(pp0_array);
399 kfree(p0_array);
400 return rc;
401}
402
403static int
404mptfc_generate_rport_ids(FCDevicePage0_t *pg0, struct fc_rport_identifiers *rid)
405{
406 /* not currently usable */
407 if (pg0->Flags & (MPI_FC_DEVICE_PAGE0_FLAGS_PLOGI_INVALID |
408 MPI_FC_DEVICE_PAGE0_FLAGS_PRLI_INVALID))
409 return -1;
410
411 if (!(pg0->Flags & MPI_FC_DEVICE_PAGE0_FLAGS_TARGETID_BUS_VALID))
412 return -1;
413
414 if (!(pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_TARGET))
415 return -1;
416
417 /*
418 * board data structure already normalized to platform endianness
419 * shifted to avoid unaligned access on 64 bit architecture
420 */
421 rid->node_name = ((u64)pg0->WWNN.High) << 32 | (u64)pg0->WWNN.Low;
422 rid->port_name = ((u64)pg0->WWPN.High) << 32 | (u64)pg0->WWPN.Low;
423 rid->port_id = pg0->PortIdentifier;
424 rid->roles = FC_RPORT_ROLE_UNKNOWN;
425
426 return 0;
427}
428
429static void
430mptfc_register_dev(MPT_ADAPTER *ioc, int channel, FCDevicePage0_t *pg0)
431{
432 struct fc_rport_identifiers rport_ids;
433 struct fc_rport *rport;
434 struct mptfc_rport_info *ri;
435 int new_ri = 1;
436 u64 pn, nn;
437 VirtTarget *vtarget;
438 u32 roles = FC_RPORT_ROLE_UNKNOWN;
439
440 if (mptfc_generate_rport_ids(pg0, &rport_ids) < 0)
441 return;
442
443 roles |= FC_RPORT_ROLE_FCP_TARGET;
444 if (pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_INITIATOR)
445 roles |= FC_RPORT_ROLE_FCP_INITIATOR;
446
447 /* scan list looking for a match */
448 list_for_each_entry(ri, &ioc->fc_rports, list) {
449 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
450 if (pn == rport_ids.port_name) { /* match */
451 list_move_tail(&ri->list, &ioc->fc_rports);
452 new_ri = 0;
453 break;
454 }
455 }
456 if (new_ri) { /* allocate one */
457 ri = kzalloc(sizeof(struct mptfc_rport_info), GFP_KERNEL);
458 if (!ri)
459 return;
460 list_add_tail(&ri->list, &ioc->fc_rports);
461 }
462
463 ri->pg0 = *pg0; /* add/update pg0 data */
464 ri->flags &= ~MPT_RPORT_INFO_FLAGS_MISSING;
465
466 /* MPT_RPORT_INFO_FLAGS_REGISTERED - rport not previously deleted */
467 if (!(ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED)) {
468 ri->flags |= MPT_RPORT_INFO_FLAGS_REGISTERED;
469 rport = fc_remote_port_add(ioc->sh, channel, &rport_ids);
470 if (rport) {
471 ri->rport = rport;
472 if (new_ri) /* may have been reset by user */
473 rport->dev_loss_tmo = mptfc_dev_loss_tmo;
474 /*
475 * if already mapped, remap here. If not mapped,
476 * target_alloc will allocate vtarget and map,
477 * slave_alloc will fill in vdevice from vtarget.
478 */
479 if (ri->starget) {
480 vtarget = ri->starget->hostdata;
481 if (vtarget) {
482 vtarget->id = pg0->CurrentTargetID;
483 vtarget->channel = pg0->CurrentBus;
484 vtarget->deleted = 0;
485 }
486 }
487 *((struct mptfc_rport_info **)rport->dd_data) = ri;
488 /* scan will be scheduled once rport becomes a target */
489 fc_remote_port_rolechg(rport,roles);
490
491 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
492 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low;
493 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
494 "mptfc_reg_dev.%d: %x, %llx / %llx, tid %d, "
495 "rport tid %d, tmo %d\n",
496 ioc->name,
497 ioc->sh->host_no,
498 pg0->PortIdentifier,
499 (unsigned long long)nn,
500 (unsigned long long)pn,
501 pg0->CurrentTargetID,
502 ri->rport->scsi_target_id,
503 ri->rport->dev_loss_tmo));
504 } else {
505 list_del(&ri->list);
506 kfree(ri);
507 ri = NULL;
508 }
509 }
510}
511
512/*
513 * OS entry point to allow for host driver to free allocated memory
514 * Called if no device present or device being unloaded
515 */
516static void
517mptfc_target_destroy(struct scsi_target *starget)
518{
519 struct fc_rport *rport;
520 struct mptfc_rport_info *ri;
521
522 rport = starget_to_rport(starget);
523 if (rport) {
524 ri = *((struct mptfc_rport_info **)rport->dd_data);
525 if (ri) /* better be! */
526 ri->starget = NULL;
527 }
528 if (starget->hostdata)
529 kfree(starget->hostdata);
530 starget->hostdata = NULL;
531}
532
533/*
534 * OS entry point to allow host driver to alloc memory
535 * for each scsi target. Called once per device the bus scan.
536 * Return non-zero if allocation fails.
537 */
538static int
539mptfc_target_alloc(struct scsi_target *starget)
540{
541 VirtTarget *vtarget;
542 struct fc_rport *rport;
543 struct mptfc_rport_info *ri;
544 int rc;
545
546 vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL);
547 if (!vtarget)
548 return -ENOMEM;
549 starget->hostdata = vtarget;
550
551 rc = -ENODEV;
552 rport = starget_to_rport(starget);
553 if (rport) {
554 ri = *((struct mptfc_rport_info **)rport->dd_data);
555 if (ri) { /* better be! */
556 vtarget->id = ri->pg0.CurrentTargetID;
557 vtarget->channel = ri->pg0.CurrentBus;
558 ri->starget = starget;
559 rc = 0;
560 }
561 }
562 if (rc != 0) {
563 kfree(vtarget);
564 starget->hostdata = NULL;
565 }
566
567 return rc;
568}
569/*
570 * mptfc_dump_lun_info
571 * @ioc
572 * @rport
573 * @sdev
574 *
575 */
576static void
577mptfc_dump_lun_info(MPT_ADAPTER *ioc, struct fc_rport *rport, struct scsi_device *sdev,
578 VirtTarget *vtarget)
579{
580 u64 nn, pn;
581 struct mptfc_rport_info *ri;
582
583 ri = *((struct mptfc_rport_info **)rport->dd_data);
584 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
585 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low;
586 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
587 "mptfc_slv_alloc.%d: num_luns %d, sdev.id %d, "
588 "CurrentTargetID %d, %x %llx %llx\n",
589 ioc->name,
590 sdev->host->host_no,
591 vtarget->num_luns,
592 sdev->id, ri->pg0.CurrentTargetID,
593 ri->pg0.PortIdentifier,
594 (unsigned long long)pn,
595 (unsigned long long)nn));
596}
597
598
599/*
600 * OS entry point to allow host driver to alloc memory
601 * for each scsi device. Called once per device the bus scan.
602 * Return non-zero if allocation fails.
603 * Init memory once per LUN.
604 */
605static int
606mptfc_slave_alloc(struct scsi_device *sdev)
607{
608 MPT_SCSI_HOST *hd;
609 VirtTarget *vtarget;
610 VirtDevice *vdevice;
611 struct scsi_target *starget;
612 struct fc_rport *rport;
613 MPT_ADAPTER *ioc;
614
615 starget = scsi_target(sdev);
616 rport = starget_to_rport(starget);
617
618 if (!rport || fc_remote_port_chkready(rport))
619 return -ENXIO;
620
621 hd = shost_priv(sdev->host);
622 ioc = hd->ioc;
623
624 vdevice = kzalloc(sizeof(VirtDevice), GFP_KERNEL);
625 if (!vdevice) {
626 printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n",
627 ioc->name, sizeof(VirtDevice));
628 return -ENOMEM;
629 }
630
631
632 sdev->hostdata = vdevice;
633 vtarget = starget->hostdata;
634
635 if (vtarget->num_luns == 0) {
636 vtarget->ioc_id = ioc->id;
637 vtarget->tflags = MPT_TARGET_FLAGS_Q_YES;
638 }
639
640 vdevice->vtarget = vtarget;
641 vdevice->lun = sdev->lun;
642
643 vtarget->num_luns++;
644
645
646 mptfc_dump_lun_info(ioc, rport, sdev, vtarget);
647
648 return 0;
649}
650
651static int
652mptfc_qcmd_lck(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
653{
654 struct mptfc_rport_info *ri;
655 struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device));
656 int err;
657 VirtDevice *vdevice = SCpnt->device->hostdata;
658
659 if (!vdevice || !vdevice->vtarget) {
660 SCpnt->result = DID_NO_CONNECT << 16;
661 done(SCpnt);
662 return 0;
663 }
664
665 err = fc_remote_port_chkready(rport);
666 if (unlikely(err)) {
667 SCpnt->result = err;
668 done(SCpnt);
669 return 0;
670 }
671
672 /* dd_data is null until finished adding target */
673 ri = *((struct mptfc_rport_info **)rport->dd_data);
674 if (unlikely(!ri)) {
675 SCpnt->result = DID_IMM_RETRY << 16;
676 done(SCpnt);
677 return 0;
678 }
679
680 return mptscsih_qcmd(SCpnt,done);
681}
682
683static DEF_SCSI_QCMD(mptfc_qcmd)
684
685/*
686 * mptfc_display_port_link_speed - displaying link speed
687 * @ioc: Pointer to MPT_ADAPTER structure
688 * @portnum: IOC Port number
689 * @pp0dest: port page0 data payload
690 *
691 */
692static void
693mptfc_display_port_link_speed(MPT_ADAPTER *ioc, int portnum, FCPortPage0_t *pp0dest)
694{
695 u8 old_speed, new_speed, state;
696 char *old, *new;
697
698 if (portnum >= 2)
699 return;
700
701 old_speed = ioc->fc_link_speed[portnum];
702 new_speed = pp0dest->CurrentSpeed;
703 state = pp0dest->PortState;
704
705 if (state != MPI_FCPORTPAGE0_PORTSTATE_OFFLINE &&
706 new_speed != MPI_FCPORTPAGE0_CURRENT_SPEED_UKNOWN) {
707
708 old = old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" :
709 old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" :
710 old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" :
711 "Unknown";
712 new = new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" :
713 new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" :
714 new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" :
715 "Unknown";
716 if (old_speed == 0)
717 printk(MYIOC_s_NOTE_FMT
718 "FC Link Established, Speed = %s\n",
719 ioc->name, new);
720 else if (old_speed != new_speed)
721 printk(MYIOC_s_WARN_FMT
722 "FC Link Speed Change, Old Speed = %s, New Speed = %s\n",
723 ioc->name, old, new);
724
725 ioc->fc_link_speed[portnum] = new_speed;
726 }
727}
728
729/*
730 * mptfc_GetFcPortPage0 - Fetch FCPort config Page0.
731 * @ioc: Pointer to MPT_ADAPTER structure
732 * @portnum: IOC Port number
733 *
734 * Return: 0 for success
735 * -ENOMEM if no memory available
736 * -EPERM if not allowed due to ISR context
737 * -EAGAIN if no msg frames currently available
738 * -EFAULT for non-successful reply or no reply (timeout)
739 * -EINVAL portnum arg out of range (hardwired to two elements)
740 */
741static int
742mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum)
743{
744 ConfigPageHeader_t hdr;
745 CONFIGPARMS cfg;
746 FCPortPage0_t *ppage0_alloc;
747 FCPortPage0_t *pp0dest;
748 dma_addr_t page0_dma;
749 int data_sz;
750 int copy_sz;
751 int rc;
752 int count = 400;
753
754 if (portnum > 1)
755 return -EINVAL;
756
757 /* Get FCPort Page 0 header */
758 hdr.PageVersion = 0;
759 hdr.PageLength = 0;
760 hdr.PageNumber = 0;
761 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
762 cfg.cfghdr.hdr = &hdr;
763 cfg.physAddr = -1;
764 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
765 cfg.dir = 0;
766 cfg.pageAddr = portnum;
767 cfg.timeout = 0;
768
769 if ((rc = mpt_config(ioc, &cfg)) != 0)
770 return rc;
771
772 if (hdr.PageLength == 0)
773 return 0;
774
775 data_sz = hdr.PageLength * 4;
776 rc = -ENOMEM;
777 ppage0_alloc = (FCPortPage0_t *) pci_alloc_consistent(ioc->pcidev, data_sz, &page0_dma);
778 if (ppage0_alloc) {
779
780 try_again:
781 memset((u8 *)ppage0_alloc, 0, data_sz);
782 cfg.physAddr = page0_dma;
783 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
784
785 if ((rc = mpt_config(ioc, &cfg)) == 0) {
786 /* save the data */
787 pp0dest = &ioc->fc_port_page0[portnum];
788 copy_sz = min_t(int, sizeof(FCPortPage0_t), data_sz);
789 memcpy(pp0dest, ppage0_alloc, copy_sz);
790
791 /*
792 * Normalize endianness of structure data,
793 * by byte-swapping all > 1 byte fields!
794 */
795 pp0dest->Flags = le32_to_cpu(pp0dest->Flags);
796 pp0dest->PortIdentifier = le32_to_cpu(pp0dest->PortIdentifier);
797 pp0dest->WWNN.Low = le32_to_cpu(pp0dest->WWNN.Low);
798 pp0dest->WWNN.High = le32_to_cpu(pp0dest->WWNN.High);
799 pp0dest->WWPN.Low = le32_to_cpu(pp0dest->WWPN.Low);
800 pp0dest->WWPN.High = le32_to_cpu(pp0dest->WWPN.High);
801 pp0dest->SupportedServiceClass = le32_to_cpu(pp0dest->SupportedServiceClass);
802 pp0dest->SupportedSpeeds = le32_to_cpu(pp0dest->SupportedSpeeds);
803 pp0dest->CurrentSpeed = le32_to_cpu(pp0dest->CurrentSpeed);
804 pp0dest->MaxFrameSize = le32_to_cpu(pp0dest->MaxFrameSize);
805 pp0dest->FabricWWNN.Low = le32_to_cpu(pp0dest->FabricWWNN.Low);
806 pp0dest->FabricWWNN.High = le32_to_cpu(pp0dest->FabricWWNN.High);
807 pp0dest->FabricWWPN.Low = le32_to_cpu(pp0dest->FabricWWPN.Low);
808 pp0dest->FabricWWPN.High = le32_to_cpu(pp0dest->FabricWWPN.High);
809 pp0dest->DiscoveredPortsCount = le32_to_cpu(pp0dest->DiscoveredPortsCount);
810 pp0dest->MaxInitiators = le32_to_cpu(pp0dest->MaxInitiators);
811
812 /*
813 * if still doing discovery,
814 * hang loose a while until finished
815 */
816 if ((pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) ||
817 (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE &&
818 (pp0dest->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_TYPE_MASK)
819 == MPI_FCPORTPAGE0_FLAGS_ATTACH_NO_INIT)) {
820 if (count-- > 0) {
821 msleep(100);
822 goto try_again;
823 }
824 printk(MYIOC_s_INFO_FMT "Firmware discovery not"
825 " complete.\n",
826 ioc->name);
827 }
828 mptfc_display_port_link_speed(ioc, portnum, pp0dest);
829 }
830
831 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) ppage0_alloc, page0_dma);
832 }
833
834 return rc;
835}
836
837static int
838mptfc_WriteFcPortPage1(MPT_ADAPTER *ioc, int portnum)
839{
840 ConfigPageHeader_t hdr;
841 CONFIGPARMS cfg;
842 int rc;
843
844 if (portnum > 1)
845 return -EINVAL;
846
847 if (!(ioc->fc_data.fc_port_page1[portnum].data))
848 return -EINVAL;
849
850 /* get fcport page 1 header */
851 hdr.PageVersion = 0;
852 hdr.PageLength = 0;
853 hdr.PageNumber = 1;
854 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
855 cfg.cfghdr.hdr = &hdr;
856 cfg.physAddr = -1;
857 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
858 cfg.dir = 0;
859 cfg.pageAddr = portnum;
860 cfg.timeout = 0;
861
862 if ((rc = mpt_config(ioc, &cfg)) != 0)
863 return rc;
864
865 if (hdr.PageLength == 0)
866 return -ENODEV;
867
868 if (hdr.PageLength*4 != ioc->fc_data.fc_port_page1[portnum].pg_sz)
869 return -EINVAL;
870
871 cfg.physAddr = ioc->fc_data.fc_port_page1[portnum].dma;
872 cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT;
873 cfg.dir = 1;
874
875 rc = mpt_config(ioc, &cfg);
876
877 return rc;
878}
879
880static int
881mptfc_GetFcPortPage1(MPT_ADAPTER *ioc, int portnum)
882{
883 ConfigPageHeader_t hdr;
884 CONFIGPARMS cfg;
885 FCPortPage1_t *page1_alloc;
886 dma_addr_t page1_dma;
887 int data_sz;
888 int rc;
889
890 if (portnum > 1)
891 return -EINVAL;
892
893 /* get fcport page 1 header */
894 hdr.PageVersion = 0;
895 hdr.PageLength = 0;
896 hdr.PageNumber = 1;
897 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
898 cfg.cfghdr.hdr = &hdr;
899 cfg.physAddr = -1;
900 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
901 cfg.dir = 0;
902 cfg.pageAddr = portnum;
903 cfg.timeout = 0;
904
905 if ((rc = mpt_config(ioc, &cfg)) != 0)
906 return rc;
907
908 if (hdr.PageLength == 0)
909 return -ENODEV;
910
911start_over:
912
913 if (ioc->fc_data.fc_port_page1[portnum].data == NULL) {
914 data_sz = hdr.PageLength * 4;
915 if (data_sz < sizeof(FCPortPage1_t))
916 data_sz = sizeof(FCPortPage1_t);
917
918 page1_alloc = (FCPortPage1_t *) pci_alloc_consistent(ioc->pcidev,
919 data_sz,
920 &page1_dma);
921 if (!page1_alloc)
922 return -ENOMEM;
923 }
924 else {
925 page1_alloc = ioc->fc_data.fc_port_page1[portnum].data;
926 page1_dma = ioc->fc_data.fc_port_page1[portnum].dma;
927 data_sz = ioc->fc_data.fc_port_page1[portnum].pg_sz;
928 if (hdr.PageLength * 4 > data_sz) {
929 ioc->fc_data.fc_port_page1[portnum].data = NULL;
930 pci_free_consistent(ioc->pcidev, data_sz, (u8 *)
931 page1_alloc, page1_dma);
932 goto start_over;
933 }
934 }
935
936 memset(page1_alloc,0,data_sz);
937
938 cfg.physAddr = page1_dma;
939 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
940
941 if ((rc = mpt_config(ioc, &cfg)) == 0) {
942 ioc->fc_data.fc_port_page1[portnum].data = page1_alloc;
943 ioc->fc_data.fc_port_page1[portnum].pg_sz = data_sz;
944 ioc->fc_data.fc_port_page1[portnum].dma = page1_dma;
945 }
946 else {
947 ioc->fc_data.fc_port_page1[portnum].data = NULL;
948 pci_free_consistent(ioc->pcidev, data_sz, (u8 *)
949 page1_alloc, page1_dma);
950 }
951
952 return rc;
953}
954
955static void
956mptfc_SetFcPortPage1_defaults(MPT_ADAPTER *ioc)
957{
958 int ii;
959 FCPortPage1_t *pp1;
960
961 #define MPTFC_FW_DEVICE_TIMEOUT (1)
962 #define MPTFC_FW_IO_PEND_TIMEOUT (1)
963 #define ON_FLAGS (MPI_FCPORTPAGE1_FLAGS_IMMEDIATE_ERROR_REPLY)
964 #define OFF_FLAGS (MPI_FCPORTPAGE1_FLAGS_VERBOSE_RESCAN_EVENTS)
965
966 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) {
967 if (mptfc_GetFcPortPage1(ioc, ii) != 0)
968 continue;
969 pp1 = ioc->fc_data.fc_port_page1[ii].data;
970 if ((pp1->InitiatorDeviceTimeout == MPTFC_FW_DEVICE_TIMEOUT)
971 && (pp1->InitiatorIoPendTimeout == MPTFC_FW_IO_PEND_TIMEOUT)
972 && ((pp1->Flags & ON_FLAGS) == ON_FLAGS)
973 && ((pp1->Flags & OFF_FLAGS) == 0))
974 continue;
975 pp1->InitiatorDeviceTimeout = MPTFC_FW_DEVICE_TIMEOUT;
976 pp1->InitiatorIoPendTimeout = MPTFC_FW_IO_PEND_TIMEOUT;
977 pp1->Flags &= ~OFF_FLAGS;
978 pp1->Flags |= ON_FLAGS;
979 mptfc_WriteFcPortPage1(ioc, ii);
980 }
981}
982
983
984static void
985mptfc_init_host_attr(MPT_ADAPTER *ioc,int portnum)
986{
987 unsigned class = 0;
988 unsigned cos = 0;
989 unsigned speed;
990 unsigned port_type;
991 unsigned port_state;
992 FCPortPage0_t *pp0;
993 struct Scsi_Host *sh;
994 char *sn;
995
996 /* don't know what to do as only one scsi (fc) host was allocated */
997 if (portnum != 0)
998 return;
999
1000 pp0 = &ioc->fc_port_page0[portnum];
1001 sh = ioc->sh;
1002
1003 sn = fc_host_symbolic_name(sh);
1004 snprintf(sn, FC_SYMBOLIC_NAME_SIZE, "%s %s%08xh",
1005 ioc->prod_name,
1006 MPT_FW_REV_MAGIC_ID_STRING,
1007 ioc->facts.FWVersion.Word);
1008
1009 fc_host_tgtid_bind_type(sh) = FC_TGTID_BIND_BY_WWPN;
1010
1011 fc_host_maxframe_size(sh) = pp0->MaxFrameSize;
1012
1013 fc_host_node_name(sh) =
1014 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low;
1015
1016 fc_host_port_name(sh) =
1017 (u64)pp0->WWPN.High << 32 | (u64)pp0->WWPN.Low;
1018
1019 fc_host_port_id(sh) = pp0->PortIdentifier;
1020
1021 class = pp0->SupportedServiceClass;
1022 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_1)
1023 cos |= FC_COS_CLASS1;
1024 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_2)
1025 cos |= FC_COS_CLASS2;
1026 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_3)
1027 cos |= FC_COS_CLASS3;
1028 fc_host_supported_classes(sh) = cos;
1029
1030 if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT)
1031 speed = FC_PORTSPEED_1GBIT;
1032 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT)
1033 speed = FC_PORTSPEED_2GBIT;
1034 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT)
1035 speed = FC_PORTSPEED_4GBIT;
1036 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_10GBIT)
1037 speed = FC_PORTSPEED_10GBIT;
1038 else
1039 speed = FC_PORTSPEED_UNKNOWN;
1040 fc_host_speed(sh) = speed;
1041
1042 speed = 0;
1043 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_1GBIT_SPEED)
1044 speed |= FC_PORTSPEED_1GBIT;
1045 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_2GBIT_SPEED)
1046 speed |= FC_PORTSPEED_2GBIT;
1047 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_4GBIT_SPEED)
1048 speed |= FC_PORTSPEED_4GBIT;
1049 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_10GBIT_SPEED)
1050 speed |= FC_PORTSPEED_10GBIT;
1051 fc_host_supported_speeds(sh) = speed;
1052
1053 port_state = FC_PORTSTATE_UNKNOWN;
1054 if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE)
1055 port_state = FC_PORTSTATE_ONLINE;
1056 else if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_OFFLINE)
1057 port_state = FC_PORTSTATE_LINKDOWN;
1058 fc_host_port_state(sh) = port_state;
1059
1060 port_type = FC_PORTTYPE_UNKNOWN;
1061 if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_POINT_TO_POINT)
1062 port_type = FC_PORTTYPE_PTP;
1063 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PRIVATE_LOOP)
1064 port_type = FC_PORTTYPE_LPORT;
1065 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PUBLIC_LOOP)
1066 port_type = FC_PORTTYPE_NLPORT;
1067 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_FABRIC_DIRECT)
1068 port_type = FC_PORTTYPE_NPORT;
1069 fc_host_port_type(sh) = port_type;
1070
1071 fc_host_fabric_name(sh) =
1072 (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_FABRIC_WWN_VALID) ?
1073 (u64) pp0->FabricWWNN.High << 32 | (u64) pp0->FabricWWPN.Low :
1074 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low;
1075
1076}
1077
1078static void
1079mptfc_link_status_change(struct work_struct *work)
1080{
1081 MPT_ADAPTER *ioc =
1082 container_of(work, MPT_ADAPTER, fc_rescan_work);
1083 int ii;
1084
1085 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++)
1086 (void) mptfc_GetFcPortPage0(ioc, ii);
1087
1088}
1089
1090static void
1091mptfc_setup_reset(struct work_struct *work)
1092{
1093 MPT_ADAPTER *ioc =
1094 container_of(work, MPT_ADAPTER, fc_setup_reset_work);
1095 u64 pn;
1096 struct mptfc_rport_info *ri;
1097 struct scsi_target *starget;
1098 VirtTarget *vtarget;
1099
1100 /* reset about to happen, delete (block) all rports */
1101 list_for_each_entry(ri, &ioc->fc_rports, list) {
1102 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) {
1103 ri->flags &= ~MPT_RPORT_INFO_FLAGS_REGISTERED;
1104 fc_remote_port_delete(ri->rport); /* won't sleep */
1105 ri->rport = NULL;
1106 starget = ri->starget;
1107 if (starget) {
1108 vtarget = starget->hostdata;
1109 if (vtarget)
1110 vtarget->deleted = 1;
1111 }
1112
1113 pn = (u64)ri->pg0.WWPN.High << 32 |
1114 (u64)ri->pg0.WWPN.Low;
1115 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
1116 "mptfc_setup_reset.%d: %llx deleted\n",
1117 ioc->name,
1118 ioc->sh->host_no,
1119 (unsigned long long)pn));
1120 }
1121 }
1122}
1123
1124static void
1125mptfc_rescan_devices(struct work_struct *work)
1126{
1127 MPT_ADAPTER *ioc =
1128 container_of(work, MPT_ADAPTER, fc_rescan_work);
1129 int ii;
1130 u64 pn;
1131 struct mptfc_rport_info *ri;
1132 struct scsi_target *starget;
1133 VirtTarget *vtarget;
1134
1135 /* start by tagging all ports as missing */
1136 list_for_each_entry(ri, &ioc->fc_rports, list) {
1137 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) {
1138 ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING;
1139 }
1140 }
1141
1142 /*
1143 * now rescan devices known to adapter,
1144 * will reregister existing rports
1145 */
1146 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1147 (void) mptfc_GetFcPortPage0(ioc, ii);
1148 mptfc_init_host_attr(ioc, ii); /* refresh */
1149 mptfc_GetFcDevPage0(ioc, ii, mptfc_register_dev);
1150 }
1151
1152 /* delete devices still missing */
1153 list_for_each_entry(ri, &ioc->fc_rports, list) {
1154 /* if newly missing, delete it */
1155 if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) {
1156
1157 ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED|
1158 MPT_RPORT_INFO_FLAGS_MISSING);
1159 fc_remote_port_delete(ri->rport); /* won't sleep */
1160 ri->rport = NULL;
1161 starget = ri->starget;
1162 if (starget) {
1163 vtarget = starget->hostdata;
1164 if (vtarget)
1165 vtarget->deleted = 1;
1166 }
1167
1168 pn = (u64)ri->pg0.WWPN.High << 32 |
1169 (u64)ri->pg0.WWPN.Low;
1170 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
1171 "mptfc_rescan.%d: %llx deleted\n",
1172 ioc->name,
1173 ioc->sh->host_no,
1174 (unsigned long long)pn));
1175 }
1176 }
1177}
1178
1179static int
1180mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id)
1181{
1182 struct Scsi_Host *sh;
1183 MPT_SCSI_HOST *hd;
1184 MPT_ADAPTER *ioc;
1185 unsigned long flags;
1186 int ii;
1187 int numSGE = 0;
1188 int scale;
1189 int ioc_cap;
1190 int error=0;
1191 int r;
1192
1193 if ((r = mpt_attach(pdev,id)) != 0)
1194 return r;
1195
1196 ioc = pci_get_drvdata(pdev);
1197 ioc->DoneCtx = mptfcDoneCtx;
1198 ioc->TaskCtx = mptfcTaskCtx;
1199 ioc->InternalCtx = mptfcInternalCtx;
1200
1201 /* Added sanity check on readiness of the MPT adapter.
1202 */
1203 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) {
1204 printk(MYIOC_s_WARN_FMT
1205 "Skipping because it's not operational!\n",
1206 ioc->name);
1207 error = -ENODEV;
1208 goto out_mptfc_probe;
1209 }
1210
1211 if (!ioc->active) {
1212 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n",
1213 ioc->name);
1214 error = -ENODEV;
1215 goto out_mptfc_probe;
1216 }
1217
1218 /* Sanity check - ensure at least 1 port is INITIATOR capable
1219 */
1220 ioc_cap = 0;
1221 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1222 if (ioc->pfacts[ii].ProtocolFlags &
1223 MPI_PORTFACTS_PROTOCOL_INITIATOR)
1224 ioc_cap ++;
1225 }
1226
1227 if (!ioc_cap) {
1228 printk(MYIOC_s_WARN_FMT
1229 "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n",
1230 ioc->name, ioc);
1231 return 0;
1232 }
1233
1234 sh = scsi_host_alloc(&mptfc_driver_template, sizeof(MPT_SCSI_HOST));
1235
1236 if (!sh) {
1237 printk(MYIOC_s_WARN_FMT
1238 "Unable to register controller with SCSI subsystem\n",
1239 ioc->name);
1240 error = -1;
1241 goto out_mptfc_probe;
1242 }
1243
1244 spin_lock_init(&ioc->fc_rescan_work_lock);
1245 INIT_WORK(&ioc->fc_rescan_work, mptfc_rescan_devices);
1246 INIT_WORK(&ioc->fc_setup_reset_work, mptfc_setup_reset);
1247 INIT_WORK(&ioc->fc_lsc_work, mptfc_link_status_change);
1248
1249 spin_lock_irqsave(&ioc->FreeQlock, flags);
1250
1251 /* Attach the SCSI Host to the IOC structure
1252 */
1253 ioc->sh = sh;
1254
1255 sh->io_port = 0;
1256 sh->n_io_port = 0;
1257 sh->irq = 0;
1258
1259 /* set 16 byte cdb's */
1260 sh->max_cmd_len = 16;
1261
1262 sh->max_id = ioc->pfacts->MaxDevices;
1263 sh->max_lun = max_lun;
1264
1265 /* Required entry.
1266 */
1267 sh->unique_id = ioc->id;
1268
1269 /* Verify that we won't exceed the maximum
1270 * number of chain buffers
1271 * We can optimize: ZZ = req_sz/sizeof(SGE)
1272 * For 32bit SGE's:
1273 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ
1274 * + (req_sz - 64)/sizeof(SGE)
1275 * A slightly different algorithm is required for
1276 * 64bit SGEs.
1277 */
1278 scale = ioc->req_sz/ioc->SGE_size;
1279 if (ioc->sg_addr_size == sizeof(u64)) {
1280 numSGE = (scale - 1) *
1281 (ioc->facts.MaxChainDepth-1) + scale +
1282 (ioc->req_sz - 60) / ioc->SGE_size;
1283 } else {
1284 numSGE = 1 + (scale - 1) *
1285 (ioc->facts.MaxChainDepth-1) + scale +
1286 (ioc->req_sz - 64) / ioc->SGE_size;
1287 }
1288
1289 if (numSGE < sh->sg_tablesize) {
1290 /* Reset this value */
1291 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1292 "Resetting sg_tablesize to %d from %d\n",
1293 ioc->name, numSGE, sh->sg_tablesize));
1294 sh->sg_tablesize = numSGE;
1295 }
1296
1297 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1298
1299 hd = shost_priv(sh);
1300 hd->ioc = ioc;
1301
1302 /* SCSI needs scsi_cmnd lookup table!
1303 * (with size equal to req_depth*PtrSz!)
1304 */
1305 ioc->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC);
1306 if (!ioc->ScsiLookup) {
1307 error = -ENOMEM;
1308 goto out_mptfc_probe;
1309 }
1310 spin_lock_init(&ioc->scsi_lookup_lock);
1311
1312 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScsiLookup @ %p\n",
1313 ioc->name, ioc->ScsiLookup));
1314
1315 hd->last_queue_full = 0;
1316
1317 sh->transportt = mptfc_transport_template;
1318 error = scsi_add_host (sh, &ioc->pcidev->dev);
1319 if(error) {
1320 dprintk(ioc, printk(MYIOC_s_ERR_FMT
1321 "scsi_add_host failed\n", ioc->name));
1322 goto out_mptfc_probe;
1323 }
1324
1325 /* initialize workqueue */
1326
1327 snprintf(ioc->fc_rescan_work_q_name, sizeof(ioc->fc_rescan_work_q_name),
1328 "mptfc_wq_%d", sh->host_no);
1329 ioc->fc_rescan_work_q =
1330 create_singlethread_workqueue(ioc->fc_rescan_work_q_name);
1331 if (!ioc->fc_rescan_work_q)
1332 goto out_mptfc_probe;
1333
1334 /*
1335 * Pre-fetch FC port WWN and stuff...
1336 * (FCPortPage0_t stuff)
1337 */
1338 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1339 (void) mptfc_GetFcPortPage0(ioc, ii);
1340 }
1341 mptfc_SetFcPortPage1_defaults(ioc);
1342
1343 /*
1344 * scan for rports -
1345 * by doing it via the workqueue, some locking is eliminated
1346 */
1347
1348 queue_work(ioc->fc_rescan_work_q, &ioc->fc_rescan_work);
1349 flush_workqueue(ioc->fc_rescan_work_q);
1350
1351 return 0;
1352
1353out_mptfc_probe:
1354
1355 mptscsih_remove(pdev);
1356 return error;
1357}
1358
1359static struct pci_driver mptfc_driver = {
1360 .name = "mptfc",
1361 .id_table = mptfc_pci_table,
1362 .probe = mptfc_probe,
1363 .remove = __devexit_p(mptfc_remove),
1364 .shutdown = mptscsih_shutdown,
1365#ifdef CONFIG_PM
1366 .suspend = mptscsih_suspend,
1367 .resume = mptscsih_resume,
1368#endif
1369};
1370
1371static int
1372mptfc_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
1373{
1374 MPT_SCSI_HOST *hd;
1375 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
1376 unsigned long flags;
1377 int rc=1;
1378
1379 if (ioc->bus_type != FC)
1380 return 0;
1381
1382 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n",
1383 ioc->name, event));
1384
1385 if (ioc->sh == NULL ||
1386 ((hd = shost_priv(ioc->sh)) == NULL))
1387 return 1;
1388
1389 switch (event) {
1390 case MPI_EVENT_RESCAN:
1391 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1392 if (ioc->fc_rescan_work_q) {
1393 queue_work(ioc->fc_rescan_work_q,
1394 &ioc->fc_rescan_work);
1395 }
1396 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1397 break;
1398 case MPI_EVENT_LINK_STATUS_CHANGE:
1399 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1400 if (ioc->fc_rescan_work_q) {
1401 queue_work(ioc->fc_rescan_work_q,
1402 &ioc->fc_lsc_work);
1403 }
1404 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1405 break;
1406 default:
1407 rc = mptscsih_event_process(ioc,pEvReply);
1408 break;
1409 }
1410 return rc;
1411}
1412
1413static int
1414mptfc_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
1415{
1416 int rc;
1417 unsigned long flags;
1418
1419 rc = mptscsih_ioc_reset(ioc,reset_phase);
1420 if ((ioc->bus_type != FC) || (!rc))
1421 return rc;
1422
1423
1424 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1425 ": IOC %s_reset routed to FC host driver!\n",ioc->name,
1426 reset_phase==MPT_IOC_SETUP_RESET ? "setup" : (
1427 reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post")));
1428
1429 if (reset_phase == MPT_IOC_SETUP_RESET) {
1430 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1431 if (ioc->fc_rescan_work_q) {
1432 queue_work(ioc->fc_rescan_work_q,
1433 &ioc->fc_setup_reset_work);
1434 }
1435 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1436 }
1437
1438 else if (reset_phase == MPT_IOC_PRE_RESET) {
1439 }
1440
1441 else { /* MPT_IOC_POST_RESET */
1442 mptfc_SetFcPortPage1_defaults(ioc);
1443 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1444 if (ioc->fc_rescan_work_q) {
1445 queue_work(ioc->fc_rescan_work_q,
1446 &ioc->fc_rescan_work);
1447 }
1448 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1449 }
1450 return 1;
1451}
1452
1453/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1454/**
1455 * mptfc_init - Register MPT adapter(s) as SCSI host(s) with SCSI mid-layer.
1456 *
1457 * Returns 0 for success, non-zero for failure.
1458 */
1459static int __init
1460mptfc_init(void)
1461{
1462 int error;
1463
1464 show_mptmod_ver(my_NAME, my_VERSION);
1465
1466 /* sanity check module parameters */
1467 if (mptfc_dev_loss_tmo <= 0)
1468 mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO;
1469
1470 mptfc_transport_template =
1471 fc_attach_transport(&mptfc_transport_functions);
1472
1473 if (!mptfc_transport_template)
1474 return -ENODEV;
1475
1476 mptfcDoneCtx = mpt_register(mptscsih_io_done, MPTFC_DRIVER,
1477 "mptscsih_scandv_complete");
1478 mptfcTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTFC_DRIVER,
1479 "mptscsih_scandv_complete");
1480 mptfcInternalCtx = mpt_register(mptscsih_scandv_complete, MPTFC_DRIVER,
1481 "mptscsih_scandv_complete");
1482
1483 mpt_event_register(mptfcDoneCtx, mptfc_event_process);
1484 mpt_reset_register(mptfcDoneCtx, mptfc_ioc_reset);
1485
1486 error = pci_register_driver(&mptfc_driver);
1487 if (error)
1488 fc_release_transport(mptfc_transport_template);
1489
1490 return error;
1491}
1492
1493/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1494/**
1495 * mptfc_remove - Remove fc infrastructure for devices
1496 * @pdev: Pointer to pci_dev structure
1497 *
1498 */
1499static void __devexit
1500mptfc_remove(struct pci_dev *pdev)
1501{
1502 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1503 struct mptfc_rport_info *p, *n;
1504 struct workqueue_struct *work_q;
1505 unsigned long flags;
1506 int ii;
1507
1508 /* destroy workqueue */
1509 if ((work_q=ioc->fc_rescan_work_q)) {
1510 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1511 ioc->fc_rescan_work_q = NULL;
1512 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1513 destroy_workqueue(work_q);
1514 }
1515
1516 fc_remove_host(ioc->sh);
1517
1518 list_for_each_entry_safe(p, n, &ioc->fc_rports, list) {
1519 list_del(&p->list);
1520 kfree(p);
1521 }
1522
1523 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) {
1524 if (ioc->fc_data.fc_port_page1[ii].data) {
1525 pci_free_consistent(ioc->pcidev,
1526 ioc->fc_data.fc_port_page1[ii].pg_sz,
1527 (u8 *) ioc->fc_data.fc_port_page1[ii].data,
1528 ioc->fc_data.fc_port_page1[ii].dma);
1529 ioc->fc_data.fc_port_page1[ii].data = NULL;
1530 }
1531 }
1532
1533 mptscsih_remove(pdev);
1534}
1535
1536/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1537/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1538/**
1539 * mptfc_exit - Unregisters MPT adapter(s)
1540 *
1541 */
1542static void __exit
1543mptfc_exit(void)
1544{
1545 pci_unregister_driver(&mptfc_driver);
1546 fc_release_transport(mptfc_transport_template);
1547
1548 mpt_reset_deregister(mptfcDoneCtx);
1549 mpt_event_deregister(mptfcDoneCtx);
1550
1551 mpt_deregister(mptfcInternalCtx);
1552 mpt_deregister(mptfcTaskCtx);
1553 mpt_deregister(mptfcDoneCtx);
1554}
1555
1556module_init(mptfc_init);
1557module_exit(mptfc_exit);
1/*
2 * linux/drivers/message/fusion/mptfc.c
3 * For use with LSI PCI chip/adapter(s)
4 * running LSI Fusion MPT (Message Passing Technology) firmware.
5 *
6 * Copyright (c) 1999-2008 LSI Corporation
7 * (mailto:DL-MPTFusionLinux@lsi.com)
8 *
9 */
10/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
11/*
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; version 2 of the License.
15
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
20
21 NO WARRANTY
22 THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
23 CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
24 LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
25 MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
26 solely responsible for determining the appropriateness of using and
27 distributing the Program and assumes all risks associated with its
28 exercise of rights under this Agreement, including but not limited to
29 the risks and costs of program errors, damage to or loss of data,
30 programs or equipment, and unavailability or interruption of operations.
31
32 DISCLAIMER OF LIABILITY
33 NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
34 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
35 DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
36 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
37 TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
38 USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
39 HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
40
41 You should have received a copy of the GNU General Public License
42 along with this program; if not, write to the Free Software
43 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
44*/
45/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
46#include <linux/module.h>
47#include <linux/kernel.h>
48#include <linux/init.h>
49#include <linux/errno.h>
50#include <linux/kdev_t.h>
51#include <linux/blkdev.h>
52#include <linux/delay.h> /* for mdelay */
53#include <linux/interrupt.h> /* needed for in_interrupt() proto */
54#include <linux/reboot.h> /* notifier code */
55#include <linux/workqueue.h>
56#include <linux/sort.h>
57#include <linux/slab.h>
58
59#include <scsi/scsi.h>
60#include <scsi/scsi_cmnd.h>
61#include <scsi/scsi_device.h>
62#include <scsi/scsi_host.h>
63#include <scsi/scsi_tcq.h>
64#include <scsi/scsi_transport_fc.h>
65
66#include "mptbase.h"
67#include "mptscsih.h"
68
69/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
70#define my_NAME "Fusion MPT FC Host driver"
71#define my_VERSION MPT_LINUX_VERSION_COMMON
72#define MYNAM "mptfc"
73
74MODULE_AUTHOR(MODULEAUTHOR);
75MODULE_DESCRIPTION(my_NAME);
76MODULE_LICENSE("GPL");
77MODULE_VERSION(my_VERSION);
78
79/* Command line args */
80#define MPTFC_DEV_LOSS_TMO (60)
81static int mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO; /* reasonable default */
82module_param(mptfc_dev_loss_tmo, int, 0);
83MODULE_PARM_DESC(mptfc_dev_loss_tmo, " Initial time the driver programs the "
84 " transport to wait for an rport to "
85 " return following a device loss event."
86 " Default=60.");
87
88/* scsi-mid layer global parmeter is max_report_luns, which is 511 */
89#define MPTFC_MAX_LUN (16895)
90static int max_lun = MPTFC_MAX_LUN;
91module_param(max_lun, int, 0);
92MODULE_PARM_DESC(max_lun, " max lun, default=16895 ");
93
94static u8 mptfcDoneCtx = MPT_MAX_PROTOCOL_DRIVERS;
95static u8 mptfcTaskCtx = MPT_MAX_PROTOCOL_DRIVERS;
96static u8 mptfcInternalCtx = MPT_MAX_PROTOCOL_DRIVERS;
97
98static int mptfc_target_alloc(struct scsi_target *starget);
99static int mptfc_slave_alloc(struct scsi_device *sdev);
100static int mptfc_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *SCpnt);
101static void mptfc_target_destroy(struct scsi_target *starget);
102static void mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout);
103static void mptfc_remove(struct pci_dev *pdev);
104static int mptfc_abort(struct scsi_cmnd *SCpnt);
105static int mptfc_dev_reset(struct scsi_cmnd *SCpnt);
106static int mptfc_bus_reset(struct scsi_cmnd *SCpnt);
107
108static struct scsi_host_template mptfc_driver_template = {
109 .module = THIS_MODULE,
110 .proc_name = "mptfc",
111 .show_info = mptscsih_show_info,
112 .name = "MPT FC Host",
113 .info = mptscsih_info,
114 .queuecommand = mptfc_qcmd,
115 .target_alloc = mptfc_target_alloc,
116 .slave_alloc = mptfc_slave_alloc,
117 .slave_configure = mptscsih_slave_configure,
118 .target_destroy = mptfc_target_destroy,
119 .slave_destroy = mptscsih_slave_destroy,
120 .change_queue_depth = mptscsih_change_queue_depth,
121 .eh_timed_out = fc_eh_timed_out,
122 .eh_abort_handler = mptfc_abort,
123 .eh_device_reset_handler = mptfc_dev_reset,
124 .eh_bus_reset_handler = mptfc_bus_reset,
125 .eh_host_reset_handler = mptscsih_host_reset,
126 .bios_param = mptscsih_bios_param,
127 .can_queue = MPT_FC_CAN_QUEUE,
128 .this_id = -1,
129 .sg_tablesize = MPT_SCSI_SG_DEPTH,
130 .max_sectors = 8192,
131 .cmd_per_lun = 7,
132 .use_clustering = ENABLE_CLUSTERING,
133 .shost_attrs = mptscsih_host_attrs,
134};
135
136/****************************************************************************
137 * Supported hardware
138 */
139
140static struct pci_device_id mptfc_pci_table[] = {
141 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC909,
142 PCI_ANY_ID, PCI_ANY_ID },
143 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC919,
144 PCI_ANY_ID, PCI_ANY_ID },
145 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC929,
146 PCI_ANY_ID, PCI_ANY_ID },
147 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC919X,
148 PCI_ANY_ID, PCI_ANY_ID },
149 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC929X,
150 PCI_ANY_ID, PCI_ANY_ID },
151 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC939X,
152 PCI_ANY_ID, PCI_ANY_ID },
153 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC949X,
154 PCI_ANY_ID, PCI_ANY_ID },
155 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC949E,
156 PCI_ANY_ID, PCI_ANY_ID },
157 { PCI_VENDOR_ID_BROCADE, MPI_MANUFACTPAGE_DEVICEID_FC949E,
158 PCI_ANY_ID, PCI_ANY_ID },
159 {0} /* Terminating entry */
160};
161MODULE_DEVICE_TABLE(pci, mptfc_pci_table);
162
163static struct scsi_transport_template *mptfc_transport_template = NULL;
164
165static struct fc_function_template mptfc_transport_functions = {
166 .dd_fcrport_size = 8,
167 .show_host_node_name = 1,
168 .show_host_port_name = 1,
169 .show_host_supported_classes = 1,
170 .show_host_port_id = 1,
171 .show_rport_supported_classes = 1,
172 .show_starget_node_name = 1,
173 .show_starget_port_name = 1,
174 .show_starget_port_id = 1,
175 .set_rport_dev_loss_tmo = mptfc_set_rport_loss_tmo,
176 .show_rport_dev_loss_tmo = 1,
177 .show_host_supported_speeds = 1,
178 .show_host_maxframe_size = 1,
179 .show_host_speed = 1,
180 .show_host_fabric_name = 1,
181 .show_host_port_type = 1,
182 .show_host_port_state = 1,
183 .show_host_symbolic_name = 1,
184};
185
186static int
187mptfc_block_error_handler(struct scsi_cmnd *SCpnt,
188 int (*func)(struct scsi_cmnd *SCpnt),
189 const char *caller)
190{
191 MPT_SCSI_HOST *hd;
192 struct scsi_device *sdev = SCpnt->device;
193 struct Scsi_Host *shost = sdev->host;
194 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
195 unsigned long flags;
196 int ready;
197 MPT_ADAPTER *ioc;
198 int loops = 40; /* seconds */
199
200 hd = shost_priv(SCpnt->device->host);
201 ioc = hd->ioc;
202 spin_lock_irqsave(shost->host_lock, flags);
203 while ((ready = fc_remote_port_chkready(rport) >> 16) == DID_IMM_RETRY
204 || (loops > 0 && ioc->active == 0)) {
205 spin_unlock_irqrestore(shost->host_lock, flags);
206 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
207 "mptfc_block_error_handler.%d: %d:%llu, port status is "
208 "%x, active flag %d, deferring %s recovery.\n",
209 ioc->name, ioc->sh->host_no,
210 SCpnt->device->id, SCpnt->device->lun,
211 ready, ioc->active, caller));
212 msleep(1000);
213 spin_lock_irqsave(shost->host_lock, flags);
214 loops --;
215 }
216 spin_unlock_irqrestore(shost->host_lock, flags);
217
218 if (ready == DID_NO_CONNECT || !SCpnt->device->hostdata
219 || ioc->active == 0) {
220 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
221 "%s.%d: %d:%llu, failing recovery, "
222 "port state %x, active %d, vdevice %p.\n", caller,
223 ioc->name, ioc->sh->host_no,
224 SCpnt->device->id, SCpnt->device->lun, ready,
225 ioc->active, SCpnt->device->hostdata));
226 return FAILED;
227 }
228 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
229 "%s.%d: %d:%llu, executing recovery.\n", caller,
230 ioc->name, ioc->sh->host_no,
231 SCpnt->device->id, SCpnt->device->lun));
232 return (*func)(SCpnt);
233}
234
235static int
236mptfc_abort(struct scsi_cmnd *SCpnt)
237{
238 return
239 mptfc_block_error_handler(SCpnt, mptscsih_abort, __func__);
240}
241
242static int
243mptfc_dev_reset(struct scsi_cmnd *SCpnt)
244{
245 return
246 mptfc_block_error_handler(SCpnt, mptscsih_dev_reset, __func__);
247}
248
249static int
250mptfc_bus_reset(struct scsi_cmnd *SCpnt)
251{
252 return
253 mptfc_block_error_handler(SCpnt, mptscsih_bus_reset, __func__);
254}
255
256static void
257mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
258{
259 if (timeout > 0)
260 rport->dev_loss_tmo = timeout;
261 else
262 rport->dev_loss_tmo = mptfc_dev_loss_tmo;
263}
264
265static int
266mptfc_FcDevPage0_cmp_func(const void *a, const void *b)
267{
268 FCDevicePage0_t **aa = (FCDevicePage0_t **)a;
269 FCDevicePage0_t **bb = (FCDevicePage0_t **)b;
270
271 if ((*aa)->CurrentBus == (*bb)->CurrentBus) {
272 if ((*aa)->CurrentTargetID == (*bb)->CurrentTargetID)
273 return 0;
274 if ((*aa)->CurrentTargetID < (*bb)->CurrentTargetID)
275 return -1;
276 return 1;
277 }
278 if ((*aa)->CurrentBus < (*bb)->CurrentBus)
279 return -1;
280 return 1;
281}
282
283static int
284mptfc_GetFcDevPage0(MPT_ADAPTER *ioc, int ioc_port,
285 void(*func)(MPT_ADAPTER *ioc,int channel, FCDevicePage0_t *arg))
286{
287 ConfigPageHeader_t hdr;
288 CONFIGPARMS cfg;
289 FCDevicePage0_t *ppage0_alloc, *fc;
290 dma_addr_t page0_dma;
291 int data_sz;
292 int ii;
293
294 FCDevicePage0_t *p0_array=NULL, *p_p0;
295 FCDevicePage0_t **pp0_array=NULL, **p_pp0;
296
297 int rc = -ENOMEM;
298 U32 port_id = 0xffffff;
299 int num_targ = 0;
300 int max_bus = ioc->facts.MaxBuses;
301 int max_targ;
302
303 max_targ = (ioc->facts.MaxDevices == 0) ? 256 : ioc->facts.MaxDevices;
304
305 data_sz = sizeof(FCDevicePage0_t) * max_bus * max_targ;
306 p_p0 = p0_array = kzalloc(data_sz, GFP_KERNEL);
307 if (!p0_array)
308 goto out;
309
310 data_sz = sizeof(FCDevicePage0_t *) * max_bus * max_targ;
311 p_pp0 = pp0_array = kzalloc(data_sz, GFP_KERNEL);
312 if (!pp0_array)
313 goto out;
314
315 do {
316 /* Get FC Device Page 0 header */
317 hdr.PageVersion = 0;
318 hdr.PageLength = 0;
319 hdr.PageNumber = 0;
320 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_DEVICE;
321 cfg.cfghdr.hdr = &hdr;
322 cfg.physAddr = -1;
323 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
324 cfg.dir = 0;
325 cfg.pageAddr = port_id;
326 cfg.timeout = 0;
327
328 if ((rc = mpt_config(ioc, &cfg)) != 0)
329 break;
330
331 if (hdr.PageLength <= 0)
332 break;
333
334 data_sz = hdr.PageLength * 4;
335 ppage0_alloc = pci_alloc_consistent(ioc->pcidev, data_sz,
336 &page0_dma);
337 rc = -ENOMEM;
338 if (!ppage0_alloc)
339 break;
340
341 cfg.physAddr = page0_dma;
342 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
343
344 if ((rc = mpt_config(ioc, &cfg)) == 0) {
345 ppage0_alloc->PortIdentifier =
346 le32_to_cpu(ppage0_alloc->PortIdentifier);
347
348 ppage0_alloc->WWNN.Low =
349 le32_to_cpu(ppage0_alloc->WWNN.Low);
350
351 ppage0_alloc->WWNN.High =
352 le32_to_cpu(ppage0_alloc->WWNN.High);
353
354 ppage0_alloc->WWPN.Low =
355 le32_to_cpu(ppage0_alloc->WWPN.Low);
356
357 ppage0_alloc->WWPN.High =
358 le32_to_cpu(ppage0_alloc->WWPN.High);
359
360 ppage0_alloc->BBCredit =
361 le16_to_cpu(ppage0_alloc->BBCredit);
362
363 ppage0_alloc->MaxRxFrameSize =
364 le16_to_cpu(ppage0_alloc->MaxRxFrameSize);
365
366 port_id = ppage0_alloc->PortIdentifier;
367 num_targ++;
368 *p_p0 = *ppage0_alloc; /* save data */
369 *p_pp0++ = p_p0++; /* save addr */
370 }
371 pci_free_consistent(ioc->pcidev, data_sz,
372 (u8 *) ppage0_alloc, page0_dma);
373 if (rc != 0)
374 break;
375
376 } while (port_id <= 0xff0000);
377
378 if (num_targ) {
379 /* sort array */
380 if (num_targ > 1)
381 sort (pp0_array, num_targ, sizeof(FCDevicePage0_t *),
382 mptfc_FcDevPage0_cmp_func, NULL);
383 /* call caller's func for each targ */
384 for (ii = 0; ii < num_targ; ii++) {
385 fc = *(pp0_array+ii);
386 func(ioc, ioc_port, fc);
387 }
388 }
389
390 out:
391 kfree(pp0_array);
392 kfree(p0_array);
393 return rc;
394}
395
396static int
397mptfc_generate_rport_ids(FCDevicePage0_t *pg0, struct fc_rport_identifiers *rid)
398{
399 /* not currently usable */
400 if (pg0->Flags & (MPI_FC_DEVICE_PAGE0_FLAGS_PLOGI_INVALID |
401 MPI_FC_DEVICE_PAGE0_FLAGS_PRLI_INVALID))
402 return -1;
403
404 if (!(pg0->Flags & MPI_FC_DEVICE_PAGE0_FLAGS_TARGETID_BUS_VALID))
405 return -1;
406
407 if (!(pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_TARGET))
408 return -1;
409
410 /*
411 * board data structure already normalized to platform endianness
412 * shifted to avoid unaligned access on 64 bit architecture
413 */
414 rid->node_name = ((u64)pg0->WWNN.High) << 32 | (u64)pg0->WWNN.Low;
415 rid->port_name = ((u64)pg0->WWPN.High) << 32 | (u64)pg0->WWPN.Low;
416 rid->port_id = pg0->PortIdentifier;
417 rid->roles = FC_RPORT_ROLE_UNKNOWN;
418
419 return 0;
420}
421
422static void
423mptfc_register_dev(MPT_ADAPTER *ioc, int channel, FCDevicePage0_t *pg0)
424{
425 struct fc_rport_identifiers rport_ids;
426 struct fc_rport *rport;
427 struct mptfc_rport_info *ri;
428 int new_ri = 1;
429 u64 pn, nn;
430 VirtTarget *vtarget;
431 u32 roles = FC_RPORT_ROLE_UNKNOWN;
432
433 if (mptfc_generate_rport_ids(pg0, &rport_ids) < 0)
434 return;
435
436 roles |= FC_RPORT_ROLE_FCP_TARGET;
437 if (pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_INITIATOR)
438 roles |= FC_RPORT_ROLE_FCP_INITIATOR;
439
440 /* scan list looking for a match */
441 list_for_each_entry(ri, &ioc->fc_rports, list) {
442 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
443 if (pn == rport_ids.port_name) { /* match */
444 list_move_tail(&ri->list, &ioc->fc_rports);
445 new_ri = 0;
446 break;
447 }
448 }
449 if (new_ri) { /* allocate one */
450 ri = kzalloc(sizeof(struct mptfc_rport_info), GFP_KERNEL);
451 if (!ri)
452 return;
453 list_add_tail(&ri->list, &ioc->fc_rports);
454 }
455
456 ri->pg0 = *pg0; /* add/update pg0 data */
457 ri->flags &= ~MPT_RPORT_INFO_FLAGS_MISSING;
458
459 /* MPT_RPORT_INFO_FLAGS_REGISTERED - rport not previously deleted */
460 if (!(ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED)) {
461 ri->flags |= MPT_RPORT_INFO_FLAGS_REGISTERED;
462 rport = fc_remote_port_add(ioc->sh, channel, &rport_ids);
463 if (rport) {
464 ri->rport = rport;
465 if (new_ri) /* may have been reset by user */
466 rport->dev_loss_tmo = mptfc_dev_loss_tmo;
467 /*
468 * if already mapped, remap here. If not mapped,
469 * target_alloc will allocate vtarget and map,
470 * slave_alloc will fill in vdevice from vtarget.
471 */
472 if (ri->starget) {
473 vtarget = ri->starget->hostdata;
474 if (vtarget) {
475 vtarget->id = pg0->CurrentTargetID;
476 vtarget->channel = pg0->CurrentBus;
477 vtarget->deleted = 0;
478 }
479 }
480 *((struct mptfc_rport_info **)rport->dd_data) = ri;
481 /* scan will be scheduled once rport becomes a target */
482 fc_remote_port_rolechg(rport,roles);
483
484 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
485 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low;
486 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
487 "mptfc_reg_dev.%d: %x, %llx / %llx, tid %d, "
488 "rport tid %d, tmo %d\n",
489 ioc->name,
490 ioc->sh->host_no,
491 pg0->PortIdentifier,
492 (unsigned long long)nn,
493 (unsigned long long)pn,
494 pg0->CurrentTargetID,
495 ri->rport->scsi_target_id,
496 ri->rport->dev_loss_tmo));
497 } else {
498 list_del(&ri->list);
499 kfree(ri);
500 ri = NULL;
501 }
502 }
503}
504
505/*
506 * OS entry point to allow for host driver to free allocated memory
507 * Called if no device present or device being unloaded
508 */
509static void
510mptfc_target_destroy(struct scsi_target *starget)
511{
512 struct fc_rport *rport;
513 struct mptfc_rport_info *ri;
514
515 rport = starget_to_rport(starget);
516 if (rport) {
517 ri = *((struct mptfc_rport_info **)rport->dd_data);
518 if (ri) /* better be! */
519 ri->starget = NULL;
520 }
521 kfree(starget->hostdata);
522 starget->hostdata = NULL;
523}
524
525/*
526 * OS entry point to allow host driver to alloc memory
527 * for each scsi target. Called once per device the bus scan.
528 * Return non-zero if allocation fails.
529 */
530static int
531mptfc_target_alloc(struct scsi_target *starget)
532{
533 VirtTarget *vtarget;
534 struct fc_rport *rport;
535 struct mptfc_rport_info *ri;
536 int rc;
537
538 vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL);
539 if (!vtarget)
540 return -ENOMEM;
541 starget->hostdata = vtarget;
542
543 rc = -ENODEV;
544 rport = starget_to_rport(starget);
545 if (rport) {
546 ri = *((struct mptfc_rport_info **)rport->dd_data);
547 if (ri) { /* better be! */
548 vtarget->id = ri->pg0.CurrentTargetID;
549 vtarget->channel = ri->pg0.CurrentBus;
550 ri->starget = starget;
551 rc = 0;
552 }
553 }
554 if (rc != 0) {
555 kfree(vtarget);
556 starget->hostdata = NULL;
557 }
558
559 return rc;
560}
561/*
562 * mptfc_dump_lun_info
563 * @ioc
564 * @rport
565 * @sdev
566 *
567 */
568static void
569mptfc_dump_lun_info(MPT_ADAPTER *ioc, struct fc_rport *rport, struct scsi_device *sdev,
570 VirtTarget *vtarget)
571{
572 u64 nn, pn;
573 struct mptfc_rport_info *ri;
574
575 ri = *((struct mptfc_rport_info **)rport->dd_data);
576 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
577 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low;
578 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
579 "mptfc_slv_alloc.%d: num_luns %d, sdev.id %d, "
580 "CurrentTargetID %d, %x %llx %llx\n",
581 ioc->name,
582 sdev->host->host_no,
583 vtarget->num_luns,
584 sdev->id, ri->pg0.CurrentTargetID,
585 ri->pg0.PortIdentifier,
586 (unsigned long long)pn,
587 (unsigned long long)nn));
588}
589
590
591/*
592 * OS entry point to allow host driver to alloc memory
593 * for each scsi device. Called once per device the bus scan.
594 * Return non-zero if allocation fails.
595 * Init memory once per LUN.
596 */
597static int
598mptfc_slave_alloc(struct scsi_device *sdev)
599{
600 MPT_SCSI_HOST *hd;
601 VirtTarget *vtarget;
602 VirtDevice *vdevice;
603 struct scsi_target *starget;
604 struct fc_rport *rport;
605 MPT_ADAPTER *ioc;
606
607 starget = scsi_target(sdev);
608 rport = starget_to_rport(starget);
609
610 if (!rport || fc_remote_port_chkready(rport))
611 return -ENXIO;
612
613 hd = shost_priv(sdev->host);
614 ioc = hd->ioc;
615
616 vdevice = kzalloc(sizeof(VirtDevice), GFP_KERNEL);
617 if (!vdevice) {
618 printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n",
619 ioc->name, sizeof(VirtDevice));
620 return -ENOMEM;
621 }
622
623
624 sdev->hostdata = vdevice;
625 vtarget = starget->hostdata;
626
627 if (vtarget->num_luns == 0) {
628 vtarget->ioc_id = ioc->id;
629 vtarget->tflags = MPT_TARGET_FLAGS_Q_YES;
630 }
631
632 vdevice->vtarget = vtarget;
633 vdevice->lun = sdev->lun;
634
635 vtarget->num_luns++;
636
637
638 mptfc_dump_lun_info(ioc, rport, sdev, vtarget);
639
640 return 0;
641}
642
643static int
644mptfc_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *SCpnt)
645{
646 struct mptfc_rport_info *ri;
647 struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device));
648 int err;
649 VirtDevice *vdevice = SCpnt->device->hostdata;
650
651 if (!vdevice || !vdevice->vtarget) {
652 SCpnt->result = DID_NO_CONNECT << 16;
653 SCpnt->scsi_done(SCpnt);
654 return 0;
655 }
656
657 err = fc_remote_port_chkready(rport);
658 if (unlikely(err)) {
659 SCpnt->result = err;
660 SCpnt->scsi_done(SCpnt);
661 return 0;
662 }
663
664 /* dd_data is null until finished adding target */
665 ri = *((struct mptfc_rport_info **)rport->dd_data);
666 if (unlikely(!ri)) {
667 SCpnt->result = DID_IMM_RETRY << 16;
668 SCpnt->scsi_done(SCpnt);
669 return 0;
670 }
671
672 return mptscsih_qcmd(SCpnt);
673}
674
675/*
676 * mptfc_display_port_link_speed - displaying link speed
677 * @ioc: Pointer to MPT_ADAPTER structure
678 * @portnum: IOC Port number
679 * @pp0dest: port page0 data payload
680 *
681 */
682static void
683mptfc_display_port_link_speed(MPT_ADAPTER *ioc, int portnum, FCPortPage0_t *pp0dest)
684{
685 u8 old_speed, new_speed, state;
686 char *old, *new;
687
688 if (portnum >= 2)
689 return;
690
691 old_speed = ioc->fc_link_speed[portnum];
692 new_speed = pp0dest->CurrentSpeed;
693 state = pp0dest->PortState;
694
695 if (state != MPI_FCPORTPAGE0_PORTSTATE_OFFLINE &&
696 new_speed != MPI_FCPORTPAGE0_CURRENT_SPEED_UKNOWN) {
697
698 old = old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" :
699 old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" :
700 old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" :
701 "Unknown";
702 new = new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" :
703 new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" :
704 new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" :
705 "Unknown";
706 if (old_speed == 0)
707 printk(MYIOC_s_NOTE_FMT
708 "FC Link Established, Speed = %s\n",
709 ioc->name, new);
710 else if (old_speed != new_speed)
711 printk(MYIOC_s_WARN_FMT
712 "FC Link Speed Change, Old Speed = %s, New Speed = %s\n",
713 ioc->name, old, new);
714
715 ioc->fc_link_speed[portnum] = new_speed;
716 }
717}
718
719/*
720 * mptfc_GetFcPortPage0 - Fetch FCPort config Page0.
721 * @ioc: Pointer to MPT_ADAPTER structure
722 * @portnum: IOC Port number
723 *
724 * Return: 0 for success
725 * -ENOMEM if no memory available
726 * -EPERM if not allowed due to ISR context
727 * -EAGAIN if no msg frames currently available
728 * -EFAULT for non-successful reply or no reply (timeout)
729 * -EINVAL portnum arg out of range (hardwired to two elements)
730 */
731static int
732mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum)
733{
734 ConfigPageHeader_t hdr;
735 CONFIGPARMS cfg;
736 FCPortPage0_t *ppage0_alloc;
737 FCPortPage0_t *pp0dest;
738 dma_addr_t page0_dma;
739 int data_sz;
740 int copy_sz;
741 int rc;
742 int count = 400;
743
744 if (portnum > 1)
745 return -EINVAL;
746
747 /* Get FCPort Page 0 header */
748 hdr.PageVersion = 0;
749 hdr.PageLength = 0;
750 hdr.PageNumber = 0;
751 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
752 cfg.cfghdr.hdr = &hdr;
753 cfg.physAddr = -1;
754 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
755 cfg.dir = 0;
756 cfg.pageAddr = portnum;
757 cfg.timeout = 0;
758
759 if ((rc = mpt_config(ioc, &cfg)) != 0)
760 return rc;
761
762 if (hdr.PageLength == 0)
763 return 0;
764
765 data_sz = hdr.PageLength * 4;
766 rc = -ENOMEM;
767 ppage0_alloc = (FCPortPage0_t *) pci_alloc_consistent(ioc->pcidev, data_sz, &page0_dma);
768 if (ppage0_alloc) {
769
770 try_again:
771 memset((u8 *)ppage0_alloc, 0, data_sz);
772 cfg.physAddr = page0_dma;
773 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
774
775 if ((rc = mpt_config(ioc, &cfg)) == 0) {
776 /* save the data */
777 pp0dest = &ioc->fc_port_page0[portnum];
778 copy_sz = min_t(int, sizeof(FCPortPage0_t), data_sz);
779 memcpy(pp0dest, ppage0_alloc, copy_sz);
780
781 /*
782 * Normalize endianness of structure data,
783 * by byte-swapping all > 1 byte fields!
784 */
785 pp0dest->Flags = le32_to_cpu(pp0dest->Flags);
786 pp0dest->PortIdentifier = le32_to_cpu(pp0dest->PortIdentifier);
787 pp0dest->WWNN.Low = le32_to_cpu(pp0dest->WWNN.Low);
788 pp0dest->WWNN.High = le32_to_cpu(pp0dest->WWNN.High);
789 pp0dest->WWPN.Low = le32_to_cpu(pp0dest->WWPN.Low);
790 pp0dest->WWPN.High = le32_to_cpu(pp0dest->WWPN.High);
791 pp0dest->SupportedServiceClass = le32_to_cpu(pp0dest->SupportedServiceClass);
792 pp0dest->SupportedSpeeds = le32_to_cpu(pp0dest->SupportedSpeeds);
793 pp0dest->CurrentSpeed = le32_to_cpu(pp0dest->CurrentSpeed);
794 pp0dest->MaxFrameSize = le32_to_cpu(pp0dest->MaxFrameSize);
795 pp0dest->FabricWWNN.Low = le32_to_cpu(pp0dest->FabricWWNN.Low);
796 pp0dest->FabricWWNN.High = le32_to_cpu(pp0dest->FabricWWNN.High);
797 pp0dest->FabricWWPN.Low = le32_to_cpu(pp0dest->FabricWWPN.Low);
798 pp0dest->FabricWWPN.High = le32_to_cpu(pp0dest->FabricWWPN.High);
799 pp0dest->DiscoveredPortsCount = le32_to_cpu(pp0dest->DiscoveredPortsCount);
800 pp0dest->MaxInitiators = le32_to_cpu(pp0dest->MaxInitiators);
801
802 /*
803 * if still doing discovery,
804 * hang loose a while until finished
805 */
806 if ((pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) ||
807 (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE &&
808 (pp0dest->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_TYPE_MASK)
809 == MPI_FCPORTPAGE0_FLAGS_ATTACH_NO_INIT)) {
810 if (count-- > 0) {
811 msleep(100);
812 goto try_again;
813 }
814 printk(MYIOC_s_INFO_FMT "Firmware discovery not"
815 " complete.\n",
816 ioc->name);
817 }
818 mptfc_display_port_link_speed(ioc, portnum, pp0dest);
819 }
820
821 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) ppage0_alloc, page0_dma);
822 }
823
824 return rc;
825}
826
827static int
828mptfc_WriteFcPortPage1(MPT_ADAPTER *ioc, int portnum)
829{
830 ConfigPageHeader_t hdr;
831 CONFIGPARMS cfg;
832 int rc;
833
834 if (portnum > 1)
835 return -EINVAL;
836
837 if (!(ioc->fc_data.fc_port_page1[portnum].data))
838 return -EINVAL;
839
840 /* get fcport page 1 header */
841 hdr.PageVersion = 0;
842 hdr.PageLength = 0;
843 hdr.PageNumber = 1;
844 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
845 cfg.cfghdr.hdr = &hdr;
846 cfg.physAddr = -1;
847 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
848 cfg.dir = 0;
849 cfg.pageAddr = portnum;
850 cfg.timeout = 0;
851
852 if ((rc = mpt_config(ioc, &cfg)) != 0)
853 return rc;
854
855 if (hdr.PageLength == 0)
856 return -ENODEV;
857
858 if (hdr.PageLength*4 != ioc->fc_data.fc_port_page1[portnum].pg_sz)
859 return -EINVAL;
860
861 cfg.physAddr = ioc->fc_data.fc_port_page1[portnum].dma;
862 cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT;
863 cfg.dir = 1;
864
865 rc = mpt_config(ioc, &cfg);
866
867 return rc;
868}
869
870static int
871mptfc_GetFcPortPage1(MPT_ADAPTER *ioc, int portnum)
872{
873 ConfigPageHeader_t hdr;
874 CONFIGPARMS cfg;
875 FCPortPage1_t *page1_alloc;
876 dma_addr_t page1_dma;
877 int data_sz;
878 int rc;
879
880 if (portnum > 1)
881 return -EINVAL;
882
883 /* get fcport page 1 header */
884 hdr.PageVersion = 0;
885 hdr.PageLength = 0;
886 hdr.PageNumber = 1;
887 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
888 cfg.cfghdr.hdr = &hdr;
889 cfg.physAddr = -1;
890 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
891 cfg.dir = 0;
892 cfg.pageAddr = portnum;
893 cfg.timeout = 0;
894
895 if ((rc = mpt_config(ioc, &cfg)) != 0)
896 return rc;
897
898 if (hdr.PageLength == 0)
899 return -ENODEV;
900
901start_over:
902
903 if (ioc->fc_data.fc_port_page1[portnum].data == NULL) {
904 data_sz = hdr.PageLength * 4;
905 if (data_sz < sizeof(FCPortPage1_t))
906 data_sz = sizeof(FCPortPage1_t);
907
908 page1_alloc = (FCPortPage1_t *) pci_alloc_consistent(ioc->pcidev,
909 data_sz,
910 &page1_dma);
911 if (!page1_alloc)
912 return -ENOMEM;
913 }
914 else {
915 page1_alloc = ioc->fc_data.fc_port_page1[portnum].data;
916 page1_dma = ioc->fc_data.fc_port_page1[portnum].dma;
917 data_sz = ioc->fc_data.fc_port_page1[portnum].pg_sz;
918 if (hdr.PageLength * 4 > data_sz) {
919 ioc->fc_data.fc_port_page1[portnum].data = NULL;
920 pci_free_consistent(ioc->pcidev, data_sz, (u8 *)
921 page1_alloc, page1_dma);
922 goto start_over;
923 }
924 }
925
926 memset(page1_alloc,0,data_sz);
927
928 cfg.physAddr = page1_dma;
929 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
930
931 if ((rc = mpt_config(ioc, &cfg)) == 0) {
932 ioc->fc_data.fc_port_page1[portnum].data = page1_alloc;
933 ioc->fc_data.fc_port_page1[portnum].pg_sz = data_sz;
934 ioc->fc_data.fc_port_page1[portnum].dma = page1_dma;
935 }
936 else {
937 ioc->fc_data.fc_port_page1[portnum].data = NULL;
938 pci_free_consistent(ioc->pcidev, data_sz, (u8 *)
939 page1_alloc, page1_dma);
940 }
941
942 return rc;
943}
944
945static void
946mptfc_SetFcPortPage1_defaults(MPT_ADAPTER *ioc)
947{
948 int ii;
949 FCPortPage1_t *pp1;
950
951 #define MPTFC_FW_DEVICE_TIMEOUT (1)
952 #define MPTFC_FW_IO_PEND_TIMEOUT (1)
953 #define ON_FLAGS (MPI_FCPORTPAGE1_FLAGS_IMMEDIATE_ERROR_REPLY)
954 #define OFF_FLAGS (MPI_FCPORTPAGE1_FLAGS_VERBOSE_RESCAN_EVENTS)
955
956 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) {
957 if (mptfc_GetFcPortPage1(ioc, ii) != 0)
958 continue;
959 pp1 = ioc->fc_data.fc_port_page1[ii].data;
960 if ((pp1->InitiatorDeviceTimeout == MPTFC_FW_DEVICE_TIMEOUT)
961 && (pp1->InitiatorIoPendTimeout == MPTFC_FW_IO_PEND_TIMEOUT)
962 && ((pp1->Flags & ON_FLAGS) == ON_FLAGS)
963 && ((pp1->Flags & OFF_FLAGS) == 0))
964 continue;
965 pp1->InitiatorDeviceTimeout = MPTFC_FW_DEVICE_TIMEOUT;
966 pp1->InitiatorIoPendTimeout = MPTFC_FW_IO_PEND_TIMEOUT;
967 pp1->Flags &= ~OFF_FLAGS;
968 pp1->Flags |= ON_FLAGS;
969 mptfc_WriteFcPortPage1(ioc, ii);
970 }
971}
972
973
974static void
975mptfc_init_host_attr(MPT_ADAPTER *ioc,int portnum)
976{
977 unsigned class = 0;
978 unsigned cos = 0;
979 unsigned speed;
980 unsigned port_type;
981 unsigned port_state;
982 FCPortPage0_t *pp0;
983 struct Scsi_Host *sh;
984 char *sn;
985
986 /* don't know what to do as only one scsi (fc) host was allocated */
987 if (portnum != 0)
988 return;
989
990 pp0 = &ioc->fc_port_page0[portnum];
991 sh = ioc->sh;
992
993 sn = fc_host_symbolic_name(sh);
994 snprintf(sn, FC_SYMBOLIC_NAME_SIZE, "%s %s%08xh",
995 ioc->prod_name,
996 MPT_FW_REV_MAGIC_ID_STRING,
997 ioc->facts.FWVersion.Word);
998
999 fc_host_tgtid_bind_type(sh) = FC_TGTID_BIND_BY_WWPN;
1000
1001 fc_host_maxframe_size(sh) = pp0->MaxFrameSize;
1002
1003 fc_host_node_name(sh) =
1004 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low;
1005
1006 fc_host_port_name(sh) =
1007 (u64)pp0->WWPN.High << 32 | (u64)pp0->WWPN.Low;
1008
1009 fc_host_port_id(sh) = pp0->PortIdentifier;
1010
1011 class = pp0->SupportedServiceClass;
1012 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_1)
1013 cos |= FC_COS_CLASS1;
1014 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_2)
1015 cos |= FC_COS_CLASS2;
1016 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_3)
1017 cos |= FC_COS_CLASS3;
1018 fc_host_supported_classes(sh) = cos;
1019
1020 if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT)
1021 speed = FC_PORTSPEED_1GBIT;
1022 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT)
1023 speed = FC_PORTSPEED_2GBIT;
1024 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT)
1025 speed = FC_PORTSPEED_4GBIT;
1026 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_10GBIT)
1027 speed = FC_PORTSPEED_10GBIT;
1028 else
1029 speed = FC_PORTSPEED_UNKNOWN;
1030 fc_host_speed(sh) = speed;
1031
1032 speed = 0;
1033 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_1GBIT_SPEED)
1034 speed |= FC_PORTSPEED_1GBIT;
1035 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_2GBIT_SPEED)
1036 speed |= FC_PORTSPEED_2GBIT;
1037 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_4GBIT_SPEED)
1038 speed |= FC_PORTSPEED_4GBIT;
1039 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_10GBIT_SPEED)
1040 speed |= FC_PORTSPEED_10GBIT;
1041 fc_host_supported_speeds(sh) = speed;
1042
1043 port_state = FC_PORTSTATE_UNKNOWN;
1044 if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE)
1045 port_state = FC_PORTSTATE_ONLINE;
1046 else if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_OFFLINE)
1047 port_state = FC_PORTSTATE_LINKDOWN;
1048 fc_host_port_state(sh) = port_state;
1049
1050 port_type = FC_PORTTYPE_UNKNOWN;
1051 if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_POINT_TO_POINT)
1052 port_type = FC_PORTTYPE_PTP;
1053 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PRIVATE_LOOP)
1054 port_type = FC_PORTTYPE_LPORT;
1055 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PUBLIC_LOOP)
1056 port_type = FC_PORTTYPE_NLPORT;
1057 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_FABRIC_DIRECT)
1058 port_type = FC_PORTTYPE_NPORT;
1059 fc_host_port_type(sh) = port_type;
1060
1061 fc_host_fabric_name(sh) =
1062 (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_FABRIC_WWN_VALID) ?
1063 (u64) pp0->FabricWWNN.High << 32 | (u64) pp0->FabricWWPN.Low :
1064 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low;
1065
1066}
1067
1068static void
1069mptfc_link_status_change(struct work_struct *work)
1070{
1071 MPT_ADAPTER *ioc =
1072 container_of(work, MPT_ADAPTER, fc_rescan_work);
1073 int ii;
1074
1075 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++)
1076 (void) mptfc_GetFcPortPage0(ioc, ii);
1077
1078}
1079
1080static void
1081mptfc_setup_reset(struct work_struct *work)
1082{
1083 MPT_ADAPTER *ioc =
1084 container_of(work, MPT_ADAPTER, fc_setup_reset_work);
1085 u64 pn;
1086 struct mptfc_rport_info *ri;
1087 struct scsi_target *starget;
1088 VirtTarget *vtarget;
1089
1090 /* reset about to happen, delete (block) all rports */
1091 list_for_each_entry(ri, &ioc->fc_rports, list) {
1092 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) {
1093 ri->flags &= ~MPT_RPORT_INFO_FLAGS_REGISTERED;
1094 fc_remote_port_delete(ri->rport); /* won't sleep */
1095 ri->rport = NULL;
1096 starget = ri->starget;
1097 if (starget) {
1098 vtarget = starget->hostdata;
1099 if (vtarget)
1100 vtarget->deleted = 1;
1101 }
1102
1103 pn = (u64)ri->pg0.WWPN.High << 32 |
1104 (u64)ri->pg0.WWPN.Low;
1105 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
1106 "mptfc_setup_reset.%d: %llx deleted\n",
1107 ioc->name,
1108 ioc->sh->host_no,
1109 (unsigned long long)pn));
1110 }
1111 }
1112}
1113
1114static void
1115mptfc_rescan_devices(struct work_struct *work)
1116{
1117 MPT_ADAPTER *ioc =
1118 container_of(work, MPT_ADAPTER, fc_rescan_work);
1119 int ii;
1120 u64 pn;
1121 struct mptfc_rport_info *ri;
1122 struct scsi_target *starget;
1123 VirtTarget *vtarget;
1124
1125 /* start by tagging all ports as missing */
1126 list_for_each_entry(ri, &ioc->fc_rports, list) {
1127 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) {
1128 ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING;
1129 }
1130 }
1131
1132 /*
1133 * now rescan devices known to adapter,
1134 * will reregister existing rports
1135 */
1136 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1137 (void) mptfc_GetFcPortPage0(ioc, ii);
1138 mptfc_init_host_attr(ioc, ii); /* refresh */
1139 mptfc_GetFcDevPage0(ioc, ii, mptfc_register_dev);
1140 }
1141
1142 /* delete devices still missing */
1143 list_for_each_entry(ri, &ioc->fc_rports, list) {
1144 /* if newly missing, delete it */
1145 if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) {
1146
1147 ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED|
1148 MPT_RPORT_INFO_FLAGS_MISSING);
1149 fc_remote_port_delete(ri->rport); /* won't sleep */
1150 ri->rport = NULL;
1151 starget = ri->starget;
1152 if (starget) {
1153 vtarget = starget->hostdata;
1154 if (vtarget)
1155 vtarget->deleted = 1;
1156 }
1157
1158 pn = (u64)ri->pg0.WWPN.High << 32 |
1159 (u64)ri->pg0.WWPN.Low;
1160 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
1161 "mptfc_rescan.%d: %llx deleted\n",
1162 ioc->name,
1163 ioc->sh->host_no,
1164 (unsigned long long)pn));
1165 }
1166 }
1167}
1168
1169static int
1170mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id)
1171{
1172 struct Scsi_Host *sh;
1173 MPT_SCSI_HOST *hd;
1174 MPT_ADAPTER *ioc;
1175 unsigned long flags;
1176 int ii;
1177 int numSGE = 0;
1178 int scale;
1179 int ioc_cap;
1180 int error=0;
1181 int r;
1182
1183 if ((r = mpt_attach(pdev,id)) != 0)
1184 return r;
1185
1186 ioc = pci_get_drvdata(pdev);
1187 ioc->DoneCtx = mptfcDoneCtx;
1188 ioc->TaskCtx = mptfcTaskCtx;
1189 ioc->InternalCtx = mptfcInternalCtx;
1190
1191 /* Added sanity check on readiness of the MPT adapter.
1192 */
1193 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) {
1194 printk(MYIOC_s_WARN_FMT
1195 "Skipping because it's not operational!\n",
1196 ioc->name);
1197 error = -ENODEV;
1198 goto out_mptfc_probe;
1199 }
1200
1201 if (!ioc->active) {
1202 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n",
1203 ioc->name);
1204 error = -ENODEV;
1205 goto out_mptfc_probe;
1206 }
1207
1208 /* Sanity check - ensure at least 1 port is INITIATOR capable
1209 */
1210 ioc_cap = 0;
1211 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1212 if (ioc->pfacts[ii].ProtocolFlags &
1213 MPI_PORTFACTS_PROTOCOL_INITIATOR)
1214 ioc_cap ++;
1215 }
1216
1217 if (!ioc_cap) {
1218 printk(MYIOC_s_WARN_FMT
1219 "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n",
1220 ioc->name, ioc);
1221 return 0;
1222 }
1223
1224 sh = scsi_host_alloc(&mptfc_driver_template, sizeof(MPT_SCSI_HOST));
1225
1226 if (!sh) {
1227 printk(MYIOC_s_WARN_FMT
1228 "Unable to register controller with SCSI subsystem\n",
1229 ioc->name);
1230 error = -1;
1231 goto out_mptfc_probe;
1232 }
1233
1234 spin_lock_init(&ioc->fc_rescan_work_lock);
1235 INIT_WORK(&ioc->fc_rescan_work, mptfc_rescan_devices);
1236 INIT_WORK(&ioc->fc_setup_reset_work, mptfc_setup_reset);
1237 INIT_WORK(&ioc->fc_lsc_work, mptfc_link_status_change);
1238
1239 spin_lock_irqsave(&ioc->FreeQlock, flags);
1240
1241 /* Attach the SCSI Host to the IOC structure
1242 */
1243 ioc->sh = sh;
1244
1245 sh->io_port = 0;
1246 sh->n_io_port = 0;
1247 sh->irq = 0;
1248
1249 /* set 16 byte cdb's */
1250 sh->max_cmd_len = 16;
1251
1252 sh->max_id = ioc->pfacts->MaxDevices;
1253 sh->max_lun = max_lun;
1254
1255 /* Required entry.
1256 */
1257 sh->unique_id = ioc->id;
1258
1259 /* Verify that we won't exceed the maximum
1260 * number of chain buffers
1261 * We can optimize: ZZ = req_sz/sizeof(SGE)
1262 * For 32bit SGE's:
1263 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ
1264 * + (req_sz - 64)/sizeof(SGE)
1265 * A slightly different algorithm is required for
1266 * 64bit SGEs.
1267 */
1268 scale = ioc->req_sz/ioc->SGE_size;
1269 if (ioc->sg_addr_size == sizeof(u64)) {
1270 numSGE = (scale - 1) *
1271 (ioc->facts.MaxChainDepth-1) + scale +
1272 (ioc->req_sz - 60) / ioc->SGE_size;
1273 } else {
1274 numSGE = 1 + (scale - 1) *
1275 (ioc->facts.MaxChainDepth-1) + scale +
1276 (ioc->req_sz - 64) / ioc->SGE_size;
1277 }
1278
1279 if (numSGE < sh->sg_tablesize) {
1280 /* Reset this value */
1281 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1282 "Resetting sg_tablesize to %d from %d\n",
1283 ioc->name, numSGE, sh->sg_tablesize));
1284 sh->sg_tablesize = numSGE;
1285 }
1286
1287 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1288
1289 hd = shost_priv(sh);
1290 hd->ioc = ioc;
1291
1292 /* SCSI needs scsi_cmnd lookup table!
1293 * (with size equal to req_depth*PtrSz!)
1294 */
1295 ioc->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC);
1296 if (!ioc->ScsiLookup) {
1297 error = -ENOMEM;
1298 goto out_mptfc_probe;
1299 }
1300 spin_lock_init(&ioc->scsi_lookup_lock);
1301
1302 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScsiLookup @ %p\n",
1303 ioc->name, ioc->ScsiLookup));
1304
1305 hd->last_queue_full = 0;
1306
1307 sh->transportt = mptfc_transport_template;
1308 error = scsi_add_host (sh, &ioc->pcidev->dev);
1309 if(error) {
1310 dprintk(ioc, printk(MYIOC_s_ERR_FMT
1311 "scsi_add_host failed\n", ioc->name));
1312 goto out_mptfc_probe;
1313 }
1314
1315 /* initialize workqueue */
1316
1317 snprintf(ioc->fc_rescan_work_q_name, sizeof(ioc->fc_rescan_work_q_name),
1318 "mptfc_wq_%d", sh->host_no);
1319 ioc->fc_rescan_work_q =
1320 alloc_ordered_workqueue(ioc->fc_rescan_work_q_name,
1321 WQ_MEM_RECLAIM);
1322 if (!ioc->fc_rescan_work_q) {
1323 error = -ENOMEM;
1324 goto out_mptfc_host;
1325 }
1326
1327 /*
1328 * Pre-fetch FC port WWN and stuff...
1329 * (FCPortPage0_t stuff)
1330 */
1331 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1332 (void) mptfc_GetFcPortPage0(ioc, ii);
1333 }
1334 mptfc_SetFcPortPage1_defaults(ioc);
1335
1336 /*
1337 * scan for rports -
1338 * by doing it via the workqueue, some locking is eliminated
1339 */
1340
1341 queue_work(ioc->fc_rescan_work_q, &ioc->fc_rescan_work);
1342 flush_workqueue(ioc->fc_rescan_work_q);
1343
1344 return 0;
1345
1346out_mptfc_host:
1347 scsi_remove_host(sh);
1348
1349out_mptfc_probe:
1350
1351 mptscsih_remove(pdev);
1352 return error;
1353}
1354
1355static struct pci_driver mptfc_driver = {
1356 .name = "mptfc",
1357 .id_table = mptfc_pci_table,
1358 .probe = mptfc_probe,
1359 .remove = mptfc_remove,
1360 .shutdown = mptscsih_shutdown,
1361#ifdef CONFIG_PM
1362 .suspend = mptscsih_suspend,
1363 .resume = mptscsih_resume,
1364#endif
1365};
1366
1367static int
1368mptfc_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
1369{
1370 MPT_SCSI_HOST *hd;
1371 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
1372 unsigned long flags;
1373 int rc=1;
1374
1375 if (ioc->bus_type != FC)
1376 return 0;
1377
1378 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n",
1379 ioc->name, event));
1380
1381 if (ioc->sh == NULL ||
1382 ((hd = shost_priv(ioc->sh)) == NULL))
1383 return 1;
1384
1385 switch (event) {
1386 case MPI_EVENT_RESCAN:
1387 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1388 if (ioc->fc_rescan_work_q) {
1389 queue_work(ioc->fc_rescan_work_q,
1390 &ioc->fc_rescan_work);
1391 }
1392 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1393 break;
1394 case MPI_EVENT_LINK_STATUS_CHANGE:
1395 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1396 if (ioc->fc_rescan_work_q) {
1397 queue_work(ioc->fc_rescan_work_q,
1398 &ioc->fc_lsc_work);
1399 }
1400 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1401 break;
1402 default:
1403 rc = mptscsih_event_process(ioc,pEvReply);
1404 break;
1405 }
1406 return rc;
1407}
1408
1409static int
1410mptfc_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
1411{
1412 int rc;
1413 unsigned long flags;
1414
1415 rc = mptscsih_ioc_reset(ioc,reset_phase);
1416 if ((ioc->bus_type != FC) || (!rc))
1417 return rc;
1418
1419
1420 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1421 ": IOC %s_reset routed to FC host driver!\n",ioc->name,
1422 reset_phase==MPT_IOC_SETUP_RESET ? "setup" : (
1423 reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post")));
1424
1425 if (reset_phase == MPT_IOC_SETUP_RESET) {
1426 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1427 if (ioc->fc_rescan_work_q) {
1428 queue_work(ioc->fc_rescan_work_q,
1429 &ioc->fc_setup_reset_work);
1430 }
1431 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1432 }
1433
1434 else if (reset_phase == MPT_IOC_PRE_RESET) {
1435 }
1436
1437 else { /* MPT_IOC_POST_RESET */
1438 mptfc_SetFcPortPage1_defaults(ioc);
1439 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1440 if (ioc->fc_rescan_work_q) {
1441 queue_work(ioc->fc_rescan_work_q,
1442 &ioc->fc_rescan_work);
1443 }
1444 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1445 }
1446 return 1;
1447}
1448
1449/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1450/**
1451 * mptfc_init - Register MPT adapter(s) as SCSI host(s) with SCSI mid-layer.
1452 *
1453 * Returns 0 for success, non-zero for failure.
1454 */
1455static int __init
1456mptfc_init(void)
1457{
1458 int error;
1459
1460 show_mptmod_ver(my_NAME, my_VERSION);
1461
1462 /* sanity check module parameters */
1463 if (mptfc_dev_loss_tmo <= 0)
1464 mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO;
1465
1466 mptfc_transport_template =
1467 fc_attach_transport(&mptfc_transport_functions);
1468
1469 if (!mptfc_transport_template)
1470 return -ENODEV;
1471
1472 mptfcDoneCtx = mpt_register(mptscsih_io_done, MPTFC_DRIVER,
1473 "mptscsih_scandv_complete");
1474 mptfcTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTFC_DRIVER,
1475 "mptscsih_scandv_complete");
1476 mptfcInternalCtx = mpt_register(mptscsih_scandv_complete, MPTFC_DRIVER,
1477 "mptscsih_scandv_complete");
1478
1479 mpt_event_register(mptfcDoneCtx, mptfc_event_process);
1480 mpt_reset_register(mptfcDoneCtx, mptfc_ioc_reset);
1481
1482 error = pci_register_driver(&mptfc_driver);
1483 if (error)
1484 fc_release_transport(mptfc_transport_template);
1485
1486 return error;
1487}
1488
1489/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1490/**
1491 * mptfc_remove - Remove fc infrastructure for devices
1492 * @pdev: Pointer to pci_dev structure
1493 *
1494 */
1495static void mptfc_remove(struct pci_dev *pdev)
1496{
1497 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1498 struct mptfc_rport_info *p, *n;
1499 struct workqueue_struct *work_q;
1500 unsigned long flags;
1501 int ii;
1502
1503 /* destroy workqueue */
1504 if ((work_q=ioc->fc_rescan_work_q)) {
1505 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1506 ioc->fc_rescan_work_q = NULL;
1507 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1508 destroy_workqueue(work_q);
1509 }
1510
1511 fc_remove_host(ioc->sh);
1512
1513 list_for_each_entry_safe(p, n, &ioc->fc_rports, list) {
1514 list_del(&p->list);
1515 kfree(p);
1516 }
1517
1518 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) {
1519 if (ioc->fc_data.fc_port_page1[ii].data) {
1520 pci_free_consistent(ioc->pcidev,
1521 ioc->fc_data.fc_port_page1[ii].pg_sz,
1522 (u8 *) ioc->fc_data.fc_port_page1[ii].data,
1523 ioc->fc_data.fc_port_page1[ii].dma);
1524 ioc->fc_data.fc_port_page1[ii].data = NULL;
1525 }
1526 }
1527
1528 scsi_remove_host(ioc->sh);
1529
1530 mptscsih_remove(pdev);
1531}
1532
1533/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1534/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1535/**
1536 * mptfc_exit - Unregisters MPT adapter(s)
1537 *
1538 */
1539static void __exit
1540mptfc_exit(void)
1541{
1542 pci_unregister_driver(&mptfc_driver);
1543 fc_release_transport(mptfc_transport_template);
1544
1545 mpt_reset_deregister(mptfcDoneCtx);
1546 mpt_event_deregister(mptfcDoneCtx);
1547
1548 mpt_deregister(mptfcInternalCtx);
1549 mpt_deregister(mptfcTaskCtx);
1550 mpt_deregister(mptfcDoneCtx);
1551}
1552
1553module_init(mptfc_init);
1554module_exit(mptfc_exit);