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1/*
2 * linux/drivers/message/fusion/mptfc.c
3 * For use with LSI PCI chip/adapter(s)
4 * running LSI Fusion MPT (Message Passing Technology) firmware.
5 *
6 * Copyright (c) 1999-2008 LSI Corporation
7 * (mailto:DL-MPTFusionLinux@lsi.com)
8 *
9 */
10/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
11/*
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; version 2 of the License.
15
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
20
21 NO WARRANTY
22 THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
23 CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
24 LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
25 MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
26 solely responsible for determining the appropriateness of using and
27 distributing the Program and assumes all risks associated with its
28 exercise of rights under this Agreement, including but not limited to
29 the risks and costs of program errors, damage to or loss of data,
30 programs or equipment, and unavailability or interruption of operations.
31
32 DISCLAIMER OF LIABILITY
33 NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
34 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
35 DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
36 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
37 TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
38 USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
39 HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
40
41 You should have received a copy of the GNU General Public License
42 along with this program; if not, write to the Free Software
43 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
44*/
45/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
46#include <linux/module.h>
47#include <linux/kernel.h>
48#include <linux/init.h>
49#include <linux/errno.h>
50#include <linux/kdev_t.h>
51#include <linux/blkdev.h>
52#include <linux/delay.h> /* for mdelay */
53#include <linux/interrupt.h>
54#include <linux/reboot.h> /* notifier code */
55#include <linux/workqueue.h>
56#include <linux/sort.h>
57#include <linux/slab.h>
58
59#include <scsi/scsi.h>
60#include <scsi/scsi_cmnd.h>
61#include <scsi/scsi_device.h>
62#include <scsi/scsi_host.h>
63#include <scsi/scsi_tcq.h>
64#include <scsi/scsi_transport_fc.h>
65
66#include "mptbase.h"
67#include "mptscsih.h"
68
69/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
70#define my_NAME "Fusion MPT FC Host driver"
71#define my_VERSION MPT_LINUX_VERSION_COMMON
72#define MYNAM "mptfc"
73
74MODULE_AUTHOR(MODULEAUTHOR);
75MODULE_DESCRIPTION(my_NAME);
76MODULE_LICENSE("GPL");
77MODULE_VERSION(my_VERSION);
78
79/* Command line args */
80#define MPTFC_DEV_LOSS_TMO (60)
81static int mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO; /* reasonable default */
82module_param(mptfc_dev_loss_tmo, int, 0);
83MODULE_PARM_DESC(mptfc_dev_loss_tmo, " Initial time the driver programs the "
84 " transport to wait for an rport to "
85 " return following a device loss event."
86 " Default=60.");
87
88/* scsi-mid layer global parmeter is max_report_luns, which is 511 */
89#define MPTFC_MAX_LUN (16895)
90static int max_lun = MPTFC_MAX_LUN;
91module_param(max_lun, int, 0);
92MODULE_PARM_DESC(max_lun, " max lun, default=16895 ");
93
94static u8 mptfcDoneCtx = MPT_MAX_PROTOCOL_DRIVERS;
95static u8 mptfcTaskCtx = MPT_MAX_PROTOCOL_DRIVERS;
96static u8 mptfcInternalCtx = MPT_MAX_PROTOCOL_DRIVERS;
97
98static int mptfc_target_alloc(struct scsi_target *starget);
99static int mptfc_slave_alloc(struct scsi_device *sdev);
100static int mptfc_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *SCpnt);
101static void mptfc_target_destroy(struct scsi_target *starget);
102static void mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout);
103static void mptfc_remove(struct pci_dev *pdev);
104static int mptfc_abort(struct scsi_cmnd *SCpnt);
105static int mptfc_dev_reset(struct scsi_cmnd *SCpnt);
106static int mptfc_bus_reset(struct scsi_cmnd *SCpnt);
107
108static const struct scsi_host_template mptfc_driver_template = {
109 .module = THIS_MODULE,
110 .proc_name = "mptfc",
111 .show_info = mptscsih_show_info,
112 .name = "MPT FC Host",
113 .info = mptscsih_info,
114 .queuecommand = mptfc_qcmd,
115 .target_alloc = mptfc_target_alloc,
116 .slave_alloc = mptfc_slave_alloc,
117 .slave_configure = mptscsih_slave_configure,
118 .target_destroy = mptfc_target_destroy,
119 .slave_destroy = mptscsih_slave_destroy,
120 .change_queue_depth = mptscsih_change_queue_depth,
121 .eh_timed_out = fc_eh_timed_out,
122 .eh_abort_handler = mptfc_abort,
123 .eh_device_reset_handler = mptfc_dev_reset,
124 .eh_bus_reset_handler = mptfc_bus_reset,
125 .eh_host_reset_handler = mptscsih_host_reset,
126 .bios_param = mptscsih_bios_param,
127 .can_queue = MPT_FC_CAN_QUEUE,
128 .this_id = -1,
129 .sg_tablesize = MPT_SCSI_SG_DEPTH,
130 .max_sectors = 8192,
131 .cmd_per_lun = 7,
132 .dma_alignment = 511,
133 .shost_groups = mptscsih_host_attr_groups,
134};
135
136/****************************************************************************
137 * Supported hardware
138 */
139
140static const 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 fc_rport *rport)
188{
189 MPT_SCSI_HOST *hd;
190 struct Scsi_Host *shost = rport_to_shost(rport);
191 unsigned long flags;
192 int ready;
193 MPT_ADAPTER *ioc;
194 int loops = 40; /* seconds */
195
196 hd = shost_priv(shost);
197 ioc = hd->ioc;
198 spin_lock_irqsave(shost->host_lock, flags);
199 while ((ready = fc_remote_port_chkready(rport) >> 16) == DID_IMM_RETRY
200 || (loops > 0 && ioc->active == 0)) {
201 spin_unlock_irqrestore(shost->host_lock, flags);
202 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
203 "mptfc_block_error_handler.%d: %s, port status is "
204 "%x, active flag %d, deferring recovery.\n",
205 ioc->name, ioc->sh->host_no,
206 dev_name(&rport->dev), ready, ioc->active));
207 msleep(1000);
208 spin_lock_irqsave(shost->host_lock, flags);
209 loops --;
210 }
211 spin_unlock_irqrestore(shost->host_lock, flags);
212
213 if (ready == DID_NO_CONNECT || ioc->active == 0) {
214 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
215 "mpt_block_error_handler.%d: %s, failing recovery, "
216 "port state %x, active %d.\n",
217 ioc->name, ioc->sh->host_no,
218 dev_name(&rport->dev), ready, ioc->active));
219 return FAILED;
220 }
221 return SUCCESS;
222}
223
224static int
225mptfc_abort(struct scsi_cmnd *SCpnt)
226{
227 struct Scsi_Host *shost = SCpnt->device->host;
228 struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device));
229 MPT_SCSI_HOST __maybe_unused *hd = shost_priv(shost);
230 int rtn;
231
232 rtn = mptfc_block_error_handler(rport);
233 if (rtn == SUCCESS) {
234 dfcprintk (hd->ioc, printk(MYIOC_s_DEBUG_FMT
235 "%s.%d: %d:%llu, executing recovery.\n", __func__,
236 hd->ioc->name, shost->host_no,
237 SCpnt->device->id, SCpnt->device->lun));
238 rtn = mptscsih_abort(SCpnt);
239 }
240 return rtn;
241}
242
243static int
244mptfc_dev_reset(struct scsi_cmnd *SCpnt)
245{
246 struct Scsi_Host *shost = SCpnt->device->host;
247 struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device));
248 MPT_SCSI_HOST __maybe_unused *hd = shost_priv(shost);
249 int rtn;
250
251 rtn = mptfc_block_error_handler(rport);
252 if (rtn == SUCCESS) {
253 dfcprintk (hd->ioc, printk(MYIOC_s_DEBUG_FMT
254 "%s.%d: %d:%llu, executing recovery.\n", __func__,
255 hd->ioc->name, shost->host_no,
256 SCpnt->device->id, SCpnt->device->lun));
257 rtn = mptscsih_dev_reset(SCpnt);
258 }
259 return rtn;
260}
261
262static int
263mptfc_bus_reset(struct scsi_cmnd *SCpnt)
264{
265 struct Scsi_Host *shost = SCpnt->device->host;
266 MPT_SCSI_HOST __maybe_unused *hd = shost_priv(shost);
267 int channel = SCpnt->device->channel;
268 struct mptfc_rport_info *ri;
269 int rtn = FAILED;
270
271 list_for_each_entry(ri, &hd->ioc->fc_rports, list) {
272 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) {
273 VirtTarget *vtarget = ri->starget->hostdata;
274
275 if (!vtarget || vtarget->channel != channel)
276 continue;
277 rtn = fc_block_rport(ri->rport);
278 if (rtn != 0)
279 break;
280 }
281 }
282 if (rtn == 0) {
283 dfcprintk (hd->ioc, printk(MYIOC_s_DEBUG_FMT
284 "%s.%d: %d:%llu, executing recovery.\n", __func__,
285 hd->ioc->name, shost->host_no,
286 SCpnt->device->id, SCpnt->device->lun));
287 rtn = mptscsih_bus_reset(SCpnt);
288 }
289 return rtn;
290}
291
292static void
293mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
294{
295 if (timeout > 0)
296 rport->dev_loss_tmo = timeout;
297 else
298 rport->dev_loss_tmo = mptfc_dev_loss_tmo;
299}
300
301static int
302mptfc_FcDevPage0_cmp_func(const void *a, const void *b)
303{
304 FCDevicePage0_t **aa = (FCDevicePage0_t **)a;
305 FCDevicePage0_t **bb = (FCDevicePage0_t **)b;
306
307 if ((*aa)->CurrentBus == (*bb)->CurrentBus) {
308 if ((*aa)->CurrentTargetID == (*bb)->CurrentTargetID)
309 return 0;
310 if ((*aa)->CurrentTargetID < (*bb)->CurrentTargetID)
311 return -1;
312 return 1;
313 }
314 if ((*aa)->CurrentBus < (*bb)->CurrentBus)
315 return -1;
316 return 1;
317}
318
319static int
320mptfc_GetFcDevPage0(MPT_ADAPTER *ioc, int ioc_port,
321 void(*func)(MPT_ADAPTER *ioc,int channel, FCDevicePage0_t *arg))
322{
323 ConfigPageHeader_t hdr;
324 CONFIGPARMS cfg;
325 FCDevicePage0_t *ppage0_alloc, *fc;
326 dma_addr_t page0_dma;
327 int data_sz;
328 int ii;
329
330 FCDevicePage0_t *p0_array=NULL, *p_p0;
331 FCDevicePage0_t **pp0_array=NULL, **p_pp0;
332
333 int rc = -ENOMEM;
334 U32 port_id = 0xffffff;
335 int num_targ = 0;
336 int max_bus = ioc->facts.MaxBuses;
337 int max_targ;
338
339 max_targ = (ioc->facts.MaxDevices == 0) ? 256 : ioc->facts.MaxDevices;
340
341 data_sz = sizeof(FCDevicePage0_t) * max_bus * max_targ;
342 p_p0 = p0_array = kzalloc(data_sz, GFP_KERNEL);
343 if (!p0_array)
344 goto out;
345
346 data_sz = sizeof(FCDevicePage0_t *) * max_bus * max_targ;
347 p_pp0 = pp0_array = kzalloc(data_sz, GFP_KERNEL);
348 if (!pp0_array)
349 goto out;
350
351 do {
352 /* Get FC Device Page 0 header */
353 hdr.PageVersion = 0;
354 hdr.PageLength = 0;
355 hdr.PageNumber = 0;
356 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_DEVICE;
357 cfg.cfghdr.hdr = &hdr;
358 cfg.physAddr = -1;
359 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
360 cfg.dir = 0;
361 cfg.pageAddr = port_id;
362 cfg.timeout = 0;
363
364 if ((rc = mpt_config(ioc, &cfg)) != 0)
365 break;
366
367 if (hdr.PageLength <= 0)
368 break;
369
370 data_sz = hdr.PageLength * 4;
371 ppage0_alloc = dma_alloc_coherent(&ioc->pcidev->dev, data_sz,
372 &page0_dma, GFP_KERNEL);
373 rc = -ENOMEM;
374 if (!ppage0_alloc)
375 break;
376
377 cfg.physAddr = page0_dma;
378 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
379
380 if ((rc = mpt_config(ioc, &cfg)) == 0) {
381 ppage0_alloc->PortIdentifier =
382 le32_to_cpu(ppage0_alloc->PortIdentifier);
383
384 ppage0_alloc->WWNN.Low =
385 le32_to_cpu(ppage0_alloc->WWNN.Low);
386
387 ppage0_alloc->WWNN.High =
388 le32_to_cpu(ppage0_alloc->WWNN.High);
389
390 ppage0_alloc->WWPN.Low =
391 le32_to_cpu(ppage0_alloc->WWPN.Low);
392
393 ppage0_alloc->WWPN.High =
394 le32_to_cpu(ppage0_alloc->WWPN.High);
395
396 ppage0_alloc->BBCredit =
397 le16_to_cpu(ppage0_alloc->BBCredit);
398
399 ppage0_alloc->MaxRxFrameSize =
400 le16_to_cpu(ppage0_alloc->MaxRxFrameSize);
401
402 port_id = ppage0_alloc->PortIdentifier;
403 num_targ++;
404 *p_p0 = *ppage0_alloc; /* save data */
405 *p_pp0++ = p_p0++; /* save addr */
406 }
407 dma_free_coherent(&ioc->pcidev->dev, data_sz,
408 ppage0_alloc, page0_dma);
409 if (rc != 0)
410 break;
411
412 } while (port_id <= 0xff0000);
413
414 if (num_targ) {
415 /* sort array */
416 if (num_targ > 1)
417 sort (pp0_array, num_targ, sizeof(FCDevicePage0_t *),
418 mptfc_FcDevPage0_cmp_func, NULL);
419 /* call caller's func for each targ */
420 for (ii = 0; ii < num_targ; ii++) {
421 fc = *(pp0_array+ii);
422 func(ioc, ioc_port, fc);
423 }
424 }
425
426 out:
427 kfree(pp0_array);
428 kfree(p0_array);
429 return rc;
430}
431
432static int
433mptfc_generate_rport_ids(FCDevicePage0_t *pg0, struct fc_rport_identifiers *rid)
434{
435 /* not currently usable */
436 if (pg0->Flags & (MPI_FC_DEVICE_PAGE0_FLAGS_PLOGI_INVALID |
437 MPI_FC_DEVICE_PAGE0_FLAGS_PRLI_INVALID))
438 return -1;
439
440 if (!(pg0->Flags & MPI_FC_DEVICE_PAGE0_FLAGS_TARGETID_BUS_VALID))
441 return -1;
442
443 if (!(pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_TARGET))
444 return -1;
445
446 /*
447 * board data structure already normalized to platform endianness
448 * shifted to avoid unaligned access on 64 bit architecture
449 */
450 rid->node_name = ((u64)pg0->WWNN.High) << 32 | (u64)pg0->WWNN.Low;
451 rid->port_name = ((u64)pg0->WWPN.High) << 32 | (u64)pg0->WWPN.Low;
452 rid->port_id = pg0->PortIdentifier;
453 rid->roles = FC_RPORT_ROLE_UNKNOWN;
454
455 return 0;
456}
457
458static void
459mptfc_register_dev(MPT_ADAPTER *ioc, int channel, FCDevicePage0_t *pg0)
460{
461 struct fc_rport_identifiers rport_ids;
462 struct fc_rport *rport;
463 struct mptfc_rport_info *ri;
464 int new_ri = 1;
465 u64 pn, nn;
466 VirtTarget *vtarget;
467 u32 roles = FC_RPORT_ROLE_UNKNOWN;
468
469 if (mptfc_generate_rport_ids(pg0, &rport_ids) < 0)
470 return;
471
472 roles |= FC_RPORT_ROLE_FCP_TARGET;
473 if (pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_INITIATOR)
474 roles |= FC_RPORT_ROLE_FCP_INITIATOR;
475
476 /* scan list looking for a match */
477 list_for_each_entry(ri, &ioc->fc_rports, list) {
478 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
479 if (pn == rport_ids.port_name) { /* match */
480 list_move_tail(&ri->list, &ioc->fc_rports);
481 new_ri = 0;
482 break;
483 }
484 }
485 if (new_ri) { /* allocate one */
486 ri = kzalloc(sizeof(struct mptfc_rport_info), GFP_KERNEL);
487 if (!ri)
488 return;
489 list_add_tail(&ri->list, &ioc->fc_rports);
490 }
491
492 ri->pg0 = *pg0; /* add/update pg0 data */
493 ri->flags &= ~MPT_RPORT_INFO_FLAGS_MISSING;
494
495 /* MPT_RPORT_INFO_FLAGS_REGISTERED - rport not previously deleted */
496 if (!(ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED)) {
497 ri->flags |= MPT_RPORT_INFO_FLAGS_REGISTERED;
498 rport = fc_remote_port_add(ioc->sh, channel, &rport_ids);
499 if (rport) {
500 ri->rport = rport;
501 if (new_ri) /* may have been reset by user */
502 rport->dev_loss_tmo = mptfc_dev_loss_tmo;
503 /*
504 * if already mapped, remap here. If not mapped,
505 * target_alloc will allocate vtarget and map,
506 * slave_alloc will fill in vdevice from vtarget.
507 */
508 if (ri->starget) {
509 vtarget = ri->starget->hostdata;
510 if (vtarget) {
511 vtarget->id = pg0->CurrentTargetID;
512 vtarget->channel = pg0->CurrentBus;
513 vtarget->deleted = 0;
514 }
515 }
516 *((struct mptfc_rport_info **)rport->dd_data) = ri;
517 /* scan will be scheduled once rport becomes a target */
518 fc_remote_port_rolechg(rport,roles);
519
520 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
521 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low;
522 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
523 "mptfc_reg_dev.%d: %x, %llx / %llx, tid %d, "
524 "rport tid %d, tmo %d\n",
525 ioc->name,
526 ioc->sh->host_no,
527 pg0->PortIdentifier,
528 (unsigned long long)nn,
529 (unsigned long long)pn,
530 pg0->CurrentTargetID,
531 ri->rport->scsi_target_id,
532 ri->rport->dev_loss_tmo));
533 } else {
534 list_del(&ri->list);
535 kfree(ri);
536 ri = NULL;
537 }
538 }
539}
540
541/*
542 * OS entry point to allow for host driver to free allocated memory
543 * Called if no device present or device being unloaded
544 */
545static void
546mptfc_target_destroy(struct scsi_target *starget)
547{
548 struct fc_rport *rport;
549 struct mptfc_rport_info *ri;
550
551 rport = starget_to_rport(starget);
552 if (rport) {
553 ri = *((struct mptfc_rport_info **)rport->dd_data);
554 if (ri) /* better be! */
555 ri->starget = NULL;
556 }
557 kfree(starget->hostdata);
558 starget->hostdata = NULL;
559}
560
561/*
562 * OS entry point to allow host driver to alloc memory
563 * for each scsi target. Called once per device the bus scan.
564 * Return non-zero if allocation fails.
565 */
566static int
567mptfc_target_alloc(struct scsi_target *starget)
568{
569 VirtTarget *vtarget;
570 struct fc_rport *rport;
571 struct mptfc_rport_info *ri;
572 int rc;
573
574 vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL);
575 if (!vtarget)
576 return -ENOMEM;
577 starget->hostdata = vtarget;
578
579 rc = -ENODEV;
580 rport = starget_to_rport(starget);
581 if (rport) {
582 ri = *((struct mptfc_rport_info **)rport->dd_data);
583 if (ri) { /* better be! */
584 vtarget->id = ri->pg0.CurrentTargetID;
585 vtarget->channel = ri->pg0.CurrentBus;
586 ri->starget = starget;
587 rc = 0;
588 }
589 }
590 if (rc != 0) {
591 kfree(vtarget);
592 starget->hostdata = NULL;
593 }
594
595 return rc;
596}
597/*
598 * mptfc_dump_lun_info
599 * @ioc
600 * @rport
601 * @sdev
602 *
603 */
604static void
605mptfc_dump_lun_info(MPT_ADAPTER *ioc, struct fc_rport *rport, struct scsi_device *sdev,
606 VirtTarget *vtarget)
607{
608 u64 nn, pn;
609 struct mptfc_rport_info *ri;
610
611 ri = *((struct mptfc_rport_info **)rport->dd_data);
612 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
613 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low;
614 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
615 "mptfc_slv_alloc.%d: num_luns %d, sdev.id %d, "
616 "CurrentTargetID %d, %x %llx %llx\n",
617 ioc->name,
618 sdev->host->host_no,
619 vtarget->num_luns,
620 sdev->id, ri->pg0.CurrentTargetID,
621 ri->pg0.PortIdentifier,
622 (unsigned long long)pn,
623 (unsigned long long)nn));
624}
625
626
627/*
628 * OS entry point to allow host driver to alloc memory
629 * for each scsi device. Called once per device the bus scan.
630 * Return non-zero if allocation fails.
631 * Init memory once per LUN.
632 */
633static int
634mptfc_slave_alloc(struct scsi_device *sdev)
635{
636 MPT_SCSI_HOST *hd;
637 VirtTarget *vtarget;
638 VirtDevice *vdevice;
639 struct scsi_target *starget;
640 struct fc_rport *rport;
641 MPT_ADAPTER *ioc;
642
643 starget = scsi_target(sdev);
644 rport = starget_to_rport(starget);
645
646 if (!rport || fc_remote_port_chkready(rport))
647 return -ENXIO;
648
649 hd = shost_priv(sdev->host);
650 ioc = hd->ioc;
651
652 vdevice = kzalloc(sizeof(VirtDevice), GFP_KERNEL);
653 if (!vdevice) {
654 printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n",
655 ioc->name, sizeof(VirtDevice));
656 return -ENOMEM;
657 }
658
659
660 sdev->hostdata = vdevice;
661 vtarget = starget->hostdata;
662
663 if (vtarget->num_luns == 0) {
664 vtarget->ioc_id = ioc->id;
665 vtarget->tflags = MPT_TARGET_FLAGS_Q_YES;
666 }
667
668 vdevice->vtarget = vtarget;
669 vdevice->lun = sdev->lun;
670
671 vtarget->num_luns++;
672
673
674 mptfc_dump_lun_info(ioc, rport, sdev, vtarget);
675
676 return 0;
677}
678
679static int
680mptfc_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *SCpnt)
681{
682 struct mptfc_rport_info *ri;
683 struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device));
684 int err;
685 VirtDevice *vdevice = SCpnt->device->hostdata;
686
687 if (!vdevice || !vdevice->vtarget) {
688 SCpnt->result = DID_NO_CONNECT << 16;
689 scsi_done(SCpnt);
690 return 0;
691 }
692
693 err = fc_remote_port_chkready(rport);
694 if (unlikely(err)) {
695 SCpnt->result = err;
696 scsi_done(SCpnt);
697 return 0;
698 }
699
700 /* dd_data is null until finished adding target */
701 ri = *((struct mptfc_rport_info **)rport->dd_data);
702 if (unlikely(!ri)) {
703 SCpnt->result = DID_IMM_RETRY << 16;
704 scsi_done(SCpnt);
705 return 0;
706 }
707
708 return mptscsih_qcmd(SCpnt);
709}
710
711/*
712 * mptfc_display_port_link_speed - displaying link speed
713 * @ioc: Pointer to MPT_ADAPTER structure
714 * @portnum: IOC Port number
715 * @pp0dest: port page0 data payload
716 *
717 */
718static void
719mptfc_display_port_link_speed(MPT_ADAPTER *ioc, int portnum, FCPortPage0_t *pp0dest)
720{
721 u8 old_speed, new_speed, state;
722 char *old, *new;
723
724 if (portnum >= 2)
725 return;
726
727 old_speed = ioc->fc_link_speed[portnum];
728 new_speed = pp0dest->CurrentSpeed;
729 state = pp0dest->PortState;
730
731 if (state != MPI_FCPORTPAGE0_PORTSTATE_OFFLINE &&
732 new_speed != MPI_FCPORTPAGE0_CURRENT_SPEED_UNKNOWN) {
733
734 old = old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" :
735 old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" :
736 old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" :
737 "Unknown";
738 new = new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" :
739 new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" :
740 new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" :
741 "Unknown";
742 if (old_speed == 0)
743 printk(MYIOC_s_NOTE_FMT
744 "FC Link Established, Speed = %s\n",
745 ioc->name, new);
746 else if (old_speed != new_speed)
747 printk(MYIOC_s_WARN_FMT
748 "FC Link Speed Change, Old Speed = %s, New Speed = %s\n",
749 ioc->name, old, new);
750
751 ioc->fc_link_speed[portnum] = new_speed;
752 }
753}
754
755/*
756 * mptfc_GetFcPortPage0 - Fetch FCPort config Page0.
757 * @ioc: Pointer to MPT_ADAPTER structure
758 * @portnum: IOC Port number
759 *
760 * Return: 0 for success
761 * -ENOMEM if no memory available
762 * -EPERM if not allowed due to ISR context
763 * -EAGAIN if no msg frames currently available
764 * -EFAULT for non-successful reply or no reply (timeout)
765 * -EINVAL portnum arg out of range (hardwired to two elements)
766 */
767static int
768mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum)
769{
770 ConfigPageHeader_t hdr;
771 CONFIGPARMS cfg;
772 FCPortPage0_t *ppage0_alloc;
773 FCPortPage0_t *pp0dest;
774 dma_addr_t page0_dma;
775 int data_sz;
776 int copy_sz;
777 int rc;
778 int count = 400;
779
780 if (portnum > 1)
781 return -EINVAL;
782
783 /* Get FCPort Page 0 header */
784 hdr.PageVersion = 0;
785 hdr.PageLength = 0;
786 hdr.PageNumber = 0;
787 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
788 cfg.cfghdr.hdr = &hdr;
789 cfg.physAddr = -1;
790 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
791 cfg.dir = 0;
792 cfg.pageAddr = portnum;
793 cfg.timeout = 0;
794
795 if ((rc = mpt_config(ioc, &cfg)) != 0)
796 return rc;
797
798 if (hdr.PageLength == 0)
799 return 0;
800
801 data_sz = hdr.PageLength * 4;
802 rc = -ENOMEM;
803 ppage0_alloc = dma_alloc_coherent(&ioc->pcidev->dev, data_sz,
804 &page0_dma, GFP_KERNEL);
805 if (ppage0_alloc) {
806
807 try_again:
808 memset((u8 *)ppage0_alloc, 0, data_sz);
809 cfg.physAddr = page0_dma;
810 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
811
812 if ((rc = mpt_config(ioc, &cfg)) == 0) {
813 /* save the data */
814 pp0dest = &ioc->fc_port_page0[portnum];
815 copy_sz = min_t(int, sizeof(FCPortPage0_t), data_sz);
816 memcpy(pp0dest, ppage0_alloc, copy_sz);
817
818 /*
819 * Normalize endianness of structure data,
820 * by byte-swapping all > 1 byte fields!
821 */
822 pp0dest->Flags = le32_to_cpu(pp0dest->Flags);
823 pp0dest->PortIdentifier = le32_to_cpu(pp0dest->PortIdentifier);
824 pp0dest->WWNN.Low = le32_to_cpu(pp0dest->WWNN.Low);
825 pp0dest->WWNN.High = le32_to_cpu(pp0dest->WWNN.High);
826 pp0dest->WWPN.Low = le32_to_cpu(pp0dest->WWPN.Low);
827 pp0dest->WWPN.High = le32_to_cpu(pp0dest->WWPN.High);
828 pp0dest->SupportedServiceClass = le32_to_cpu(pp0dest->SupportedServiceClass);
829 pp0dest->SupportedSpeeds = le32_to_cpu(pp0dest->SupportedSpeeds);
830 pp0dest->CurrentSpeed = le32_to_cpu(pp0dest->CurrentSpeed);
831 pp0dest->MaxFrameSize = le32_to_cpu(pp0dest->MaxFrameSize);
832 pp0dest->FabricWWNN.Low = le32_to_cpu(pp0dest->FabricWWNN.Low);
833 pp0dest->FabricWWNN.High = le32_to_cpu(pp0dest->FabricWWNN.High);
834 pp0dest->FabricWWPN.Low = le32_to_cpu(pp0dest->FabricWWPN.Low);
835 pp0dest->FabricWWPN.High = le32_to_cpu(pp0dest->FabricWWPN.High);
836 pp0dest->DiscoveredPortsCount = le32_to_cpu(pp0dest->DiscoveredPortsCount);
837 pp0dest->MaxInitiators = le32_to_cpu(pp0dest->MaxInitiators);
838
839 /*
840 * if still doing discovery,
841 * hang loose a while until finished
842 */
843 if ((pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) ||
844 (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE &&
845 (pp0dest->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_TYPE_MASK)
846 == MPI_FCPORTPAGE0_FLAGS_ATTACH_NO_INIT)) {
847 if (count-- > 0) {
848 msleep(100);
849 goto try_again;
850 }
851 printk(MYIOC_s_INFO_FMT "Firmware discovery not"
852 " complete.\n",
853 ioc->name);
854 }
855 mptfc_display_port_link_speed(ioc, portnum, pp0dest);
856 }
857
858 dma_free_coherent(&ioc->pcidev->dev, data_sz, ppage0_alloc,
859 page0_dma);
860 }
861
862 return rc;
863}
864
865static int
866mptfc_WriteFcPortPage1(MPT_ADAPTER *ioc, int portnum)
867{
868 ConfigPageHeader_t hdr;
869 CONFIGPARMS cfg;
870 int rc;
871
872 if (portnum > 1)
873 return -EINVAL;
874
875 if (!(ioc->fc_data.fc_port_page1[portnum].data))
876 return -EINVAL;
877
878 /* get fcport page 1 header */
879 hdr.PageVersion = 0;
880 hdr.PageLength = 0;
881 hdr.PageNumber = 1;
882 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
883 cfg.cfghdr.hdr = &hdr;
884 cfg.physAddr = -1;
885 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
886 cfg.dir = 0;
887 cfg.pageAddr = portnum;
888 cfg.timeout = 0;
889
890 if ((rc = mpt_config(ioc, &cfg)) != 0)
891 return rc;
892
893 if (hdr.PageLength == 0)
894 return -ENODEV;
895
896 if (hdr.PageLength*4 != ioc->fc_data.fc_port_page1[portnum].pg_sz)
897 return -EINVAL;
898
899 cfg.physAddr = ioc->fc_data.fc_port_page1[portnum].dma;
900 cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT;
901 cfg.dir = 1;
902
903 rc = mpt_config(ioc, &cfg);
904
905 return rc;
906}
907
908static int
909mptfc_GetFcPortPage1(MPT_ADAPTER *ioc, int portnum)
910{
911 ConfigPageHeader_t hdr;
912 CONFIGPARMS cfg;
913 FCPortPage1_t *page1_alloc;
914 dma_addr_t page1_dma;
915 int data_sz;
916 int rc;
917
918 if (portnum > 1)
919 return -EINVAL;
920
921 /* get fcport page 1 header */
922 hdr.PageVersion = 0;
923 hdr.PageLength = 0;
924 hdr.PageNumber = 1;
925 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
926 cfg.cfghdr.hdr = &hdr;
927 cfg.physAddr = -1;
928 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
929 cfg.dir = 0;
930 cfg.pageAddr = portnum;
931 cfg.timeout = 0;
932
933 if ((rc = mpt_config(ioc, &cfg)) != 0)
934 return rc;
935
936 if (hdr.PageLength == 0)
937 return -ENODEV;
938
939start_over:
940
941 if (ioc->fc_data.fc_port_page1[portnum].data == NULL) {
942 data_sz = hdr.PageLength * 4;
943 if (data_sz < sizeof(FCPortPage1_t))
944 data_sz = sizeof(FCPortPage1_t);
945
946 page1_alloc = dma_alloc_coherent(&ioc->pcidev->dev, data_sz,
947 &page1_dma, GFP_KERNEL);
948 if (!page1_alloc)
949 return -ENOMEM;
950 }
951 else {
952 page1_alloc = ioc->fc_data.fc_port_page1[portnum].data;
953 page1_dma = ioc->fc_data.fc_port_page1[portnum].dma;
954 data_sz = ioc->fc_data.fc_port_page1[portnum].pg_sz;
955 if (hdr.PageLength * 4 > data_sz) {
956 ioc->fc_data.fc_port_page1[portnum].data = NULL;
957 dma_free_coherent(&ioc->pcidev->dev, data_sz,
958 page1_alloc, page1_dma);
959 goto start_over;
960 }
961 }
962
963 cfg.physAddr = page1_dma;
964 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
965
966 if ((rc = mpt_config(ioc, &cfg)) == 0) {
967 ioc->fc_data.fc_port_page1[portnum].data = page1_alloc;
968 ioc->fc_data.fc_port_page1[portnum].pg_sz = data_sz;
969 ioc->fc_data.fc_port_page1[portnum].dma = page1_dma;
970 }
971 else {
972 ioc->fc_data.fc_port_page1[portnum].data = NULL;
973 dma_free_coherent(&ioc->pcidev->dev, data_sz, page1_alloc,
974 page1_dma);
975 }
976
977 return rc;
978}
979
980static void
981mptfc_SetFcPortPage1_defaults(MPT_ADAPTER *ioc)
982{
983 int ii;
984 FCPortPage1_t *pp1;
985
986 #define MPTFC_FW_DEVICE_TIMEOUT (1)
987 #define MPTFC_FW_IO_PEND_TIMEOUT (1)
988 #define ON_FLAGS (MPI_FCPORTPAGE1_FLAGS_IMMEDIATE_ERROR_REPLY)
989 #define OFF_FLAGS (MPI_FCPORTPAGE1_FLAGS_VERBOSE_RESCAN_EVENTS)
990
991 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) {
992 if (mptfc_GetFcPortPage1(ioc, ii) != 0)
993 continue;
994 pp1 = ioc->fc_data.fc_port_page1[ii].data;
995 if ((pp1->InitiatorDeviceTimeout == MPTFC_FW_DEVICE_TIMEOUT)
996 && (pp1->InitiatorIoPendTimeout == MPTFC_FW_IO_PEND_TIMEOUT)
997 && ((pp1->Flags & ON_FLAGS) == ON_FLAGS)
998 && ((pp1->Flags & OFF_FLAGS) == 0))
999 continue;
1000 pp1->InitiatorDeviceTimeout = MPTFC_FW_DEVICE_TIMEOUT;
1001 pp1->InitiatorIoPendTimeout = MPTFC_FW_IO_PEND_TIMEOUT;
1002 pp1->Flags &= ~OFF_FLAGS;
1003 pp1->Flags |= ON_FLAGS;
1004 mptfc_WriteFcPortPage1(ioc, ii);
1005 }
1006}
1007
1008
1009static void
1010mptfc_init_host_attr(MPT_ADAPTER *ioc,int portnum)
1011{
1012 unsigned class = 0;
1013 unsigned cos = 0;
1014 unsigned speed;
1015 unsigned port_type;
1016 unsigned port_state;
1017 FCPortPage0_t *pp0;
1018 struct Scsi_Host *sh;
1019 char *sn;
1020
1021 /* don't know what to do as only one scsi (fc) host was allocated */
1022 if (portnum != 0)
1023 return;
1024
1025 pp0 = &ioc->fc_port_page0[portnum];
1026 sh = ioc->sh;
1027
1028 sn = fc_host_symbolic_name(sh);
1029 snprintf(sn, FC_SYMBOLIC_NAME_SIZE, "%s %s%08xh",
1030 ioc->prod_name,
1031 MPT_FW_REV_MAGIC_ID_STRING,
1032 ioc->facts.FWVersion.Word);
1033
1034 fc_host_tgtid_bind_type(sh) = FC_TGTID_BIND_BY_WWPN;
1035
1036 fc_host_maxframe_size(sh) = pp0->MaxFrameSize;
1037
1038 fc_host_node_name(sh) =
1039 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low;
1040
1041 fc_host_port_name(sh) =
1042 (u64)pp0->WWPN.High << 32 | (u64)pp0->WWPN.Low;
1043
1044 fc_host_port_id(sh) = pp0->PortIdentifier;
1045
1046 class = pp0->SupportedServiceClass;
1047 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_1)
1048 cos |= FC_COS_CLASS1;
1049 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_2)
1050 cos |= FC_COS_CLASS2;
1051 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_3)
1052 cos |= FC_COS_CLASS3;
1053 fc_host_supported_classes(sh) = cos;
1054
1055 if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT)
1056 speed = FC_PORTSPEED_1GBIT;
1057 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT)
1058 speed = FC_PORTSPEED_2GBIT;
1059 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT)
1060 speed = FC_PORTSPEED_4GBIT;
1061 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_10GBIT)
1062 speed = FC_PORTSPEED_10GBIT;
1063 else
1064 speed = FC_PORTSPEED_UNKNOWN;
1065 fc_host_speed(sh) = speed;
1066
1067 speed = 0;
1068 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_1GBIT_SPEED)
1069 speed |= FC_PORTSPEED_1GBIT;
1070 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_2GBIT_SPEED)
1071 speed |= FC_PORTSPEED_2GBIT;
1072 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_4GBIT_SPEED)
1073 speed |= FC_PORTSPEED_4GBIT;
1074 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_10GBIT_SPEED)
1075 speed |= FC_PORTSPEED_10GBIT;
1076 fc_host_supported_speeds(sh) = speed;
1077
1078 port_state = FC_PORTSTATE_UNKNOWN;
1079 if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE)
1080 port_state = FC_PORTSTATE_ONLINE;
1081 else if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_OFFLINE)
1082 port_state = FC_PORTSTATE_LINKDOWN;
1083 fc_host_port_state(sh) = port_state;
1084
1085 port_type = FC_PORTTYPE_UNKNOWN;
1086 if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_POINT_TO_POINT)
1087 port_type = FC_PORTTYPE_PTP;
1088 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PRIVATE_LOOP)
1089 port_type = FC_PORTTYPE_LPORT;
1090 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PUBLIC_LOOP)
1091 port_type = FC_PORTTYPE_NLPORT;
1092 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_FABRIC_DIRECT)
1093 port_type = FC_PORTTYPE_NPORT;
1094 fc_host_port_type(sh) = port_type;
1095
1096 fc_host_fabric_name(sh) =
1097 (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_FABRIC_WWN_VALID) ?
1098 (u64) pp0->FabricWWNN.High << 32 | (u64) pp0->FabricWWPN.Low :
1099 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low;
1100
1101}
1102
1103static void
1104mptfc_link_status_change(struct work_struct *work)
1105{
1106 MPT_ADAPTER *ioc =
1107 container_of(work, MPT_ADAPTER, fc_rescan_work);
1108 int ii;
1109
1110 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++)
1111 (void) mptfc_GetFcPortPage0(ioc, ii);
1112
1113}
1114
1115static void
1116mptfc_setup_reset(struct work_struct *work)
1117{
1118 MPT_ADAPTER *ioc =
1119 container_of(work, MPT_ADAPTER, fc_setup_reset_work);
1120 u64 pn;
1121 struct mptfc_rport_info *ri;
1122 struct scsi_target *starget;
1123 VirtTarget *vtarget;
1124
1125 /* reset about to happen, delete (block) all rports */
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_REGISTERED;
1129 fc_remote_port_delete(ri->rport); /* won't sleep */
1130 ri->rport = NULL;
1131 starget = ri->starget;
1132 if (starget) {
1133 vtarget = starget->hostdata;
1134 if (vtarget)
1135 vtarget->deleted = 1;
1136 }
1137
1138 pn = (u64)ri->pg0.WWPN.High << 32 |
1139 (u64)ri->pg0.WWPN.Low;
1140 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
1141 "mptfc_setup_reset.%d: %llx deleted\n",
1142 ioc->name,
1143 ioc->sh->host_no,
1144 (unsigned long long)pn));
1145 }
1146 }
1147}
1148
1149static void
1150mptfc_rescan_devices(struct work_struct *work)
1151{
1152 MPT_ADAPTER *ioc =
1153 container_of(work, MPT_ADAPTER, fc_rescan_work);
1154 int ii;
1155 u64 pn;
1156 struct mptfc_rport_info *ri;
1157 struct scsi_target *starget;
1158 VirtTarget *vtarget;
1159
1160 /* start by tagging all ports as missing */
1161 list_for_each_entry(ri, &ioc->fc_rports, list) {
1162 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) {
1163 ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING;
1164 }
1165 }
1166
1167 /*
1168 * now rescan devices known to adapter,
1169 * will reregister existing rports
1170 */
1171 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1172 (void) mptfc_GetFcPortPage0(ioc, ii);
1173 mptfc_init_host_attr(ioc, ii); /* refresh */
1174 mptfc_GetFcDevPage0(ioc, ii, mptfc_register_dev);
1175 }
1176
1177 /* delete devices still missing */
1178 list_for_each_entry(ri, &ioc->fc_rports, list) {
1179 /* if newly missing, delete it */
1180 if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) {
1181
1182 ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED|
1183 MPT_RPORT_INFO_FLAGS_MISSING);
1184 fc_remote_port_delete(ri->rport); /* won't sleep */
1185 ri->rport = NULL;
1186 starget = ri->starget;
1187 if (starget) {
1188 vtarget = starget->hostdata;
1189 if (vtarget)
1190 vtarget->deleted = 1;
1191 }
1192
1193 pn = (u64)ri->pg0.WWPN.High << 32 |
1194 (u64)ri->pg0.WWPN.Low;
1195 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
1196 "mptfc_rescan.%d: %llx deleted\n",
1197 ioc->name,
1198 ioc->sh->host_no,
1199 (unsigned long long)pn));
1200 }
1201 }
1202}
1203
1204static int
1205mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id)
1206{
1207 struct Scsi_Host *sh;
1208 MPT_SCSI_HOST *hd;
1209 MPT_ADAPTER *ioc;
1210 unsigned long flags;
1211 int ii;
1212 int numSGE = 0;
1213 int scale;
1214 int ioc_cap;
1215 int error=0;
1216 int r;
1217
1218 if ((r = mpt_attach(pdev,id)) != 0)
1219 return r;
1220
1221 ioc = pci_get_drvdata(pdev);
1222 ioc->DoneCtx = mptfcDoneCtx;
1223 ioc->TaskCtx = mptfcTaskCtx;
1224 ioc->InternalCtx = mptfcInternalCtx;
1225
1226 /* Added sanity check on readiness of the MPT adapter.
1227 */
1228 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) {
1229 printk(MYIOC_s_WARN_FMT
1230 "Skipping because it's not operational!\n",
1231 ioc->name);
1232 error = -ENODEV;
1233 goto out_mptfc_probe;
1234 }
1235
1236 if (!ioc->active) {
1237 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n",
1238 ioc->name);
1239 error = -ENODEV;
1240 goto out_mptfc_probe;
1241 }
1242
1243 /* Sanity check - ensure at least 1 port is INITIATOR capable
1244 */
1245 ioc_cap = 0;
1246 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1247 if (ioc->pfacts[ii].ProtocolFlags &
1248 MPI_PORTFACTS_PROTOCOL_INITIATOR)
1249 ioc_cap ++;
1250 }
1251
1252 if (!ioc_cap) {
1253 printk(MYIOC_s_WARN_FMT
1254 "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n",
1255 ioc->name, ioc);
1256 return 0;
1257 }
1258
1259 sh = scsi_host_alloc(&mptfc_driver_template, sizeof(MPT_SCSI_HOST));
1260
1261 if (!sh) {
1262 printk(MYIOC_s_WARN_FMT
1263 "Unable to register controller with SCSI subsystem\n",
1264 ioc->name);
1265 error = -1;
1266 goto out_mptfc_probe;
1267 }
1268
1269 spin_lock_init(&ioc->fc_rescan_work_lock);
1270 INIT_WORK(&ioc->fc_rescan_work, mptfc_rescan_devices);
1271 INIT_WORK(&ioc->fc_setup_reset_work, mptfc_setup_reset);
1272 INIT_WORK(&ioc->fc_lsc_work, mptfc_link_status_change);
1273
1274 spin_lock_irqsave(&ioc->FreeQlock, flags);
1275
1276 /* Attach the SCSI Host to the IOC structure
1277 */
1278 ioc->sh = sh;
1279
1280 sh->io_port = 0;
1281 sh->n_io_port = 0;
1282 sh->irq = 0;
1283
1284 /* set 16 byte cdb's */
1285 sh->max_cmd_len = 16;
1286
1287 sh->max_id = ioc->pfacts->MaxDevices;
1288 sh->max_lun = max_lun;
1289
1290 /* Required entry.
1291 */
1292 sh->unique_id = ioc->id;
1293
1294 /* Verify that we won't exceed the maximum
1295 * number of chain buffers
1296 * We can optimize: ZZ = req_sz/sizeof(SGE)
1297 * For 32bit SGE's:
1298 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ
1299 * + (req_sz - 64)/sizeof(SGE)
1300 * A slightly different algorithm is required for
1301 * 64bit SGEs.
1302 */
1303 scale = ioc->req_sz/ioc->SGE_size;
1304 if (ioc->sg_addr_size == sizeof(u64)) {
1305 numSGE = (scale - 1) *
1306 (ioc->facts.MaxChainDepth-1) + scale +
1307 (ioc->req_sz - 60) / ioc->SGE_size;
1308 } else {
1309 numSGE = 1 + (scale - 1) *
1310 (ioc->facts.MaxChainDepth-1) + scale +
1311 (ioc->req_sz - 64) / ioc->SGE_size;
1312 }
1313
1314 if (numSGE < sh->sg_tablesize) {
1315 /* Reset this value */
1316 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1317 "Resetting sg_tablesize to %d from %d\n",
1318 ioc->name, numSGE, sh->sg_tablesize));
1319 sh->sg_tablesize = numSGE;
1320 }
1321
1322 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1323
1324 hd = shost_priv(sh);
1325 hd->ioc = ioc;
1326
1327 /* SCSI needs scsi_cmnd lookup table!
1328 * (with size equal to req_depth*PtrSz!)
1329 */
1330 ioc->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_KERNEL);
1331 if (!ioc->ScsiLookup) {
1332 error = -ENOMEM;
1333 goto out_mptfc_probe;
1334 }
1335 spin_lock_init(&ioc->scsi_lookup_lock);
1336
1337 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScsiLookup @ %p\n",
1338 ioc->name, ioc->ScsiLookup));
1339
1340 hd->last_queue_full = 0;
1341
1342 sh->transportt = mptfc_transport_template;
1343 error = scsi_add_host (sh, &ioc->pcidev->dev);
1344 if(error) {
1345 dprintk(ioc, printk(MYIOC_s_ERR_FMT
1346 "scsi_add_host failed\n", ioc->name));
1347 goto out_mptfc_probe;
1348 }
1349
1350 /* initialize workqueue */
1351
1352 ioc->fc_rescan_work_q = alloc_ordered_workqueue(
1353 "mptfc_wq_%d", WQ_MEM_RECLAIM, sh->host_no);
1354 if (!ioc->fc_rescan_work_q) {
1355 error = -ENOMEM;
1356 goto out_mptfc_host;
1357 }
1358
1359 /*
1360 * Pre-fetch FC port WWN and stuff...
1361 * (FCPortPage0_t stuff)
1362 */
1363 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1364 (void) mptfc_GetFcPortPage0(ioc, ii);
1365 }
1366 mptfc_SetFcPortPage1_defaults(ioc);
1367
1368 /*
1369 * scan for rports -
1370 * by doing it via the workqueue, some locking is eliminated
1371 */
1372
1373 queue_work(ioc->fc_rescan_work_q, &ioc->fc_rescan_work);
1374 flush_workqueue(ioc->fc_rescan_work_q);
1375
1376 return 0;
1377
1378out_mptfc_host:
1379 scsi_remove_host(sh);
1380
1381out_mptfc_probe:
1382
1383 mptscsih_remove(pdev);
1384 return error;
1385}
1386
1387static struct pci_driver mptfc_driver = {
1388 .name = "mptfc",
1389 .id_table = mptfc_pci_table,
1390 .probe = mptfc_probe,
1391 .remove = mptfc_remove,
1392 .shutdown = mptscsih_shutdown,
1393#ifdef CONFIG_PM
1394 .suspend = mptscsih_suspend,
1395 .resume = mptscsih_resume,
1396#endif
1397};
1398
1399static int
1400mptfc_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
1401{
1402 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
1403 unsigned long flags;
1404 int rc=1;
1405
1406 if (ioc->bus_type != FC)
1407 return 0;
1408
1409 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n",
1410 ioc->name, event));
1411
1412 if (ioc->sh == NULL || shost_priv(ioc->sh) == NULL)
1413 return 1;
1414
1415 switch (event) {
1416 case MPI_EVENT_RESCAN:
1417 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1418 if (ioc->fc_rescan_work_q) {
1419 queue_work(ioc->fc_rescan_work_q,
1420 &ioc->fc_rescan_work);
1421 }
1422 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1423 break;
1424 case MPI_EVENT_LINK_STATUS_CHANGE:
1425 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1426 if (ioc->fc_rescan_work_q) {
1427 queue_work(ioc->fc_rescan_work_q,
1428 &ioc->fc_lsc_work);
1429 }
1430 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1431 break;
1432 default:
1433 rc = mptscsih_event_process(ioc,pEvReply);
1434 break;
1435 }
1436 return rc;
1437}
1438
1439static int
1440mptfc_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
1441{
1442 int rc;
1443 unsigned long flags;
1444
1445 rc = mptscsih_ioc_reset(ioc,reset_phase);
1446 if ((ioc->bus_type != FC) || (!rc))
1447 return rc;
1448
1449
1450 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1451 ": IOC %s_reset routed to FC host driver!\n",ioc->name,
1452 reset_phase==MPT_IOC_SETUP_RESET ? "setup" : (
1453 reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post")));
1454
1455 if (reset_phase == MPT_IOC_SETUP_RESET) {
1456 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1457 if (ioc->fc_rescan_work_q) {
1458 queue_work(ioc->fc_rescan_work_q,
1459 &ioc->fc_setup_reset_work);
1460 }
1461 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1462 }
1463
1464 else if (reset_phase == MPT_IOC_PRE_RESET) {
1465 }
1466
1467 else { /* MPT_IOC_POST_RESET */
1468 mptfc_SetFcPortPage1_defaults(ioc);
1469 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1470 if (ioc->fc_rescan_work_q) {
1471 queue_work(ioc->fc_rescan_work_q,
1472 &ioc->fc_rescan_work);
1473 }
1474 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1475 }
1476 return 1;
1477}
1478
1479/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1480/**
1481 * mptfc_init - Register MPT adapter(s) as SCSI host(s) with SCSI mid-layer.
1482 *
1483 * Returns 0 for success, non-zero for failure.
1484 */
1485static int __init
1486mptfc_init(void)
1487{
1488 int error;
1489
1490 show_mptmod_ver(my_NAME, my_VERSION);
1491
1492 /* sanity check module parameters */
1493 if (mptfc_dev_loss_tmo <= 0)
1494 mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO;
1495
1496 mptfc_transport_template =
1497 fc_attach_transport(&mptfc_transport_functions);
1498
1499 if (!mptfc_transport_template)
1500 return -ENODEV;
1501
1502 mptfcDoneCtx = mpt_register(mptscsih_io_done, MPTFC_DRIVER,
1503 "mptscsih_scandv_complete");
1504 mptfcTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTFC_DRIVER,
1505 "mptscsih_scandv_complete");
1506 mptfcInternalCtx = mpt_register(mptscsih_scandv_complete, MPTFC_DRIVER,
1507 "mptscsih_scandv_complete");
1508
1509 mpt_event_register(mptfcDoneCtx, mptfc_event_process);
1510 mpt_reset_register(mptfcDoneCtx, mptfc_ioc_reset);
1511
1512 error = pci_register_driver(&mptfc_driver);
1513 if (error)
1514 fc_release_transport(mptfc_transport_template);
1515
1516 return error;
1517}
1518
1519/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1520/**
1521 * mptfc_remove - Remove fc infrastructure for devices
1522 * @pdev: Pointer to pci_dev structure
1523 *
1524 */
1525static void mptfc_remove(struct pci_dev *pdev)
1526{
1527 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1528 struct mptfc_rport_info *p, *n;
1529 struct workqueue_struct *work_q;
1530 unsigned long flags;
1531 int ii;
1532
1533 /* destroy workqueue */
1534 if ((work_q=ioc->fc_rescan_work_q)) {
1535 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1536 ioc->fc_rescan_work_q = NULL;
1537 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1538 destroy_workqueue(work_q);
1539 }
1540
1541 fc_remove_host(ioc->sh);
1542
1543 list_for_each_entry_safe(p, n, &ioc->fc_rports, list) {
1544 list_del(&p->list);
1545 kfree(p);
1546 }
1547
1548 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) {
1549 if (ioc->fc_data.fc_port_page1[ii].data) {
1550 dma_free_coherent(&ioc->pcidev->dev,
1551 ioc->fc_data.fc_port_page1[ii].pg_sz,
1552 ioc->fc_data.fc_port_page1[ii].data,
1553 ioc->fc_data.fc_port_page1[ii].dma);
1554 ioc->fc_data.fc_port_page1[ii].data = NULL;
1555 }
1556 }
1557
1558 scsi_remove_host(ioc->sh);
1559
1560 mptscsih_remove(pdev);
1561}
1562
1563/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1564/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1565/**
1566 * mptfc_exit - Unregisters MPT adapter(s)
1567 *
1568 */
1569static void __exit
1570mptfc_exit(void)
1571{
1572 pci_unregister_driver(&mptfc_driver);
1573 fc_release_transport(mptfc_transport_template);
1574
1575 mpt_reset_deregister(mptfcDoneCtx);
1576 mpt_event_deregister(mptfcDoneCtx);
1577
1578 mpt_deregister(mptfcInternalCtx);
1579 mpt_deregister(mptfcTaskCtx);
1580 mpt_deregister(mptfcDoneCtx);
1581}
1582
1583module_init(mptfc_init);
1584module_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 __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);