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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 struct scsi_host_template mptfc_driver_template = {
109 .module = THIS_MODULE,
110 .proc_name = "mptfc",
111 .show_info = mptscsih_show_info,
112 .name = "MPT FC Host",
113 .info = mptscsih_info,
114 .queuecommand = mptfc_qcmd,
115 .target_alloc = mptfc_target_alloc,
116 .slave_alloc = mptfc_slave_alloc,
117 .slave_configure = mptscsih_slave_configure,
118 .target_destroy = mptfc_target_destroy,
119 .slave_destroy = mptscsih_slave_destroy,
120 .change_queue_depth = mptscsih_change_queue_depth,
121 .eh_timed_out = fc_eh_timed_out,
122 .eh_abort_handler = mptfc_abort,
123 .eh_device_reset_handler = mptfc_dev_reset,
124 .eh_bus_reset_handler = mptfc_bus_reset,
125 .eh_host_reset_handler = mptscsih_host_reset,
126 .bios_param = mptscsih_bios_param,
127 .can_queue = MPT_FC_CAN_QUEUE,
128 .this_id = -1,
129 .sg_tablesize = MPT_SCSI_SG_DEPTH,
130 .max_sectors = 8192,
131 .cmd_per_lun = 7,
132 .shost_groups = mptscsih_host_attr_groups,
133};
134
135/****************************************************************************
136 * Supported hardware
137 */
138
139static struct pci_device_id mptfc_pci_table[] = {
140 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC909,
141 PCI_ANY_ID, PCI_ANY_ID },
142 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC919,
143 PCI_ANY_ID, PCI_ANY_ID },
144 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC929,
145 PCI_ANY_ID, PCI_ANY_ID },
146 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC919X,
147 PCI_ANY_ID, PCI_ANY_ID },
148 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC929X,
149 PCI_ANY_ID, PCI_ANY_ID },
150 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC939X,
151 PCI_ANY_ID, PCI_ANY_ID },
152 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC949X,
153 PCI_ANY_ID, PCI_ANY_ID },
154 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC949E,
155 PCI_ANY_ID, PCI_ANY_ID },
156 { PCI_VENDOR_ID_BROCADE, MPI_MANUFACTPAGE_DEVICEID_FC949E,
157 PCI_ANY_ID, PCI_ANY_ID },
158 {0} /* Terminating entry */
159};
160MODULE_DEVICE_TABLE(pci, mptfc_pci_table);
161
162static struct scsi_transport_template *mptfc_transport_template = NULL;
163
164static struct fc_function_template mptfc_transport_functions = {
165 .dd_fcrport_size = 8,
166 .show_host_node_name = 1,
167 .show_host_port_name = 1,
168 .show_host_supported_classes = 1,
169 .show_host_port_id = 1,
170 .show_rport_supported_classes = 1,
171 .show_starget_node_name = 1,
172 .show_starget_port_name = 1,
173 .show_starget_port_id = 1,
174 .set_rport_dev_loss_tmo = mptfc_set_rport_loss_tmo,
175 .show_rport_dev_loss_tmo = 1,
176 .show_host_supported_speeds = 1,
177 .show_host_maxframe_size = 1,
178 .show_host_speed = 1,
179 .show_host_fabric_name = 1,
180 .show_host_port_type = 1,
181 .show_host_port_state = 1,
182 .show_host_symbolic_name = 1,
183};
184
185static int
186mptfc_block_error_handler(struct scsi_cmnd *SCpnt,
187 int (*func)(struct scsi_cmnd *SCpnt),
188 const char *caller)
189{
190 MPT_SCSI_HOST *hd;
191 struct scsi_device *sdev = SCpnt->device;
192 struct Scsi_Host *shost = sdev->host;
193 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
194 unsigned long flags;
195 int ready;
196 MPT_ADAPTER *ioc;
197 int loops = 40; /* seconds */
198
199 hd = shost_priv(SCpnt->device->host);
200 ioc = hd->ioc;
201 spin_lock_irqsave(shost->host_lock, flags);
202 while ((ready = fc_remote_port_chkready(rport) >> 16) == DID_IMM_RETRY
203 || (loops > 0 && ioc->active == 0)) {
204 spin_unlock_irqrestore(shost->host_lock, flags);
205 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
206 "mptfc_block_error_handler.%d: %d:%llu, port status is "
207 "%x, active flag %d, deferring %s recovery.\n",
208 ioc->name, ioc->sh->host_no,
209 SCpnt->device->id, SCpnt->device->lun,
210 ready, ioc->active, caller));
211 msleep(1000);
212 spin_lock_irqsave(shost->host_lock, flags);
213 loops --;
214 }
215 spin_unlock_irqrestore(shost->host_lock, flags);
216
217 if (ready == DID_NO_CONNECT || !SCpnt->device->hostdata
218 || ioc->active == 0) {
219 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
220 "%s.%d: %d:%llu, failing recovery, "
221 "port state %x, active %d, vdevice %p.\n", caller,
222 ioc->name, ioc->sh->host_no,
223 SCpnt->device->id, SCpnt->device->lun, ready,
224 ioc->active, SCpnt->device->hostdata));
225 return FAILED;
226 }
227 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
228 "%s.%d: %d:%llu, executing recovery.\n", caller,
229 ioc->name, ioc->sh->host_no,
230 SCpnt->device->id, SCpnt->device->lun));
231 return (*func)(SCpnt);
232}
233
234static int
235mptfc_abort(struct scsi_cmnd *SCpnt)
236{
237 return
238 mptfc_block_error_handler(SCpnt, mptscsih_abort, __func__);
239}
240
241static int
242mptfc_dev_reset(struct scsi_cmnd *SCpnt)
243{
244 return
245 mptfc_block_error_handler(SCpnt, mptscsih_dev_reset, __func__);
246}
247
248static int
249mptfc_bus_reset(struct scsi_cmnd *SCpnt)
250{
251 return
252 mptfc_block_error_handler(SCpnt, mptscsih_bus_reset, __func__);
253}
254
255static void
256mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
257{
258 if (timeout > 0)
259 rport->dev_loss_tmo = timeout;
260 else
261 rport->dev_loss_tmo = mptfc_dev_loss_tmo;
262}
263
264static int
265mptfc_FcDevPage0_cmp_func(const void *a, const void *b)
266{
267 FCDevicePage0_t **aa = (FCDevicePage0_t **)a;
268 FCDevicePage0_t **bb = (FCDevicePage0_t **)b;
269
270 if ((*aa)->CurrentBus == (*bb)->CurrentBus) {
271 if ((*aa)->CurrentTargetID == (*bb)->CurrentTargetID)
272 return 0;
273 if ((*aa)->CurrentTargetID < (*bb)->CurrentTargetID)
274 return -1;
275 return 1;
276 }
277 if ((*aa)->CurrentBus < (*bb)->CurrentBus)
278 return -1;
279 return 1;
280}
281
282static int
283mptfc_GetFcDevPage0(MPT_ADAPTER *ioc, int ioc_port,
284 void(*func)(MPT_ADAPTER *ioc,int channel, FCDevicePage0_t *arg))
285{
286 ConfigPageHeader_t hdr;
287 CONFIGPARMS cfg;
288 FCDevicePage0_t *ppage0_alloc, *fc;
289 dma_addr_t page0_dma;
290 int data_sz;
291 int ii;
292
293 FCDevicePage0_t *p0_array=NULL, *p_p0;
294 FCDevicePage0_t **pp0_array=NULL, **p_pp0;
295
296 int rc = -ENOMEM;
297 U32 port_id = 0xffffff;
298 int num_targ = 0;
299 int max_bus = ioc->facts.MaxBuses;
300 int max_targ;
301
302 max_targ = (ioc->facts.MaxDevices == 0) ? 256 : ioc->facts.MaxDevices;
303
304 data_sz = sizeof(FCDevicePage0_t) * max_bus * max_targ;
305 p_p0 = p0_array = kzalloc(data_sz, GFP_KERNEL);
306 if (!p0_array)
307 goto out;
308
309 data_sz = sizeof(FCDevicePage0_t *) * max_bus * max_targ;
310 p_pp0 = pp0_array = kzalloc(data_sz, GFP_KERNEL);
311 if (!pp0_array)
312 goto out;
313
314 do {
315 /* Get FC Device Page 0 header */
316 hdr.PageVersion = 0;
317 hdr.PageLength = 0;
318 hdr.PageNumber = 0;
319 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_DEVICE;
320 cfg.cfghdr.hdr = &hdr;
321 cfg.physAddr = -1;
322 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
323 cfg.dir = 0;
324 cfg.pageAddr = port_id;
325 cfg.timeout = 0;
326
327 if ((rc = mpt_config(ioc, &cfg)) != 0)
328 break;
329
330 if (hdr.PageLength <= 0)
331 break;
332
333 data_sz = hdr.PageLength * 4;
334 ppage0_alloc = dma_alloc_coherent(&ioc->pcidev->dev, data_sz,
335 &page0_dma, GFP_KERNEL);
336 rc = -ENOMEM;
337 if (!ppage0_alloc)
338 break;
339
340 cfg.physAddr = page0_dma;
341 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
342
343 if ((rc = mpt_config(ioc, &cfg)) == 0) {
344 ppage0_alloc->PortIdentifier =
345 le32_to_cpu(ppage0_alloc->PortIdentifier);
346
347 ppage0_alloc->WWNN.Low =
348 le32_to_cpu(ppage0_alloc->WWNN.Low);
349
350 ppage0_alloc->WWNN.High =
351 le32_to_cpu(ppage0_alloc->WWNN.High);
352
353 ppage0_alloc->WWPN.Low =
354 le32_to_cpu(ppage0_alloc->WWPN.Low);
355
356 ppage0_alloc->WWPN.High =
357 le32_to_cpu(ppage0_alloc->WWPN.High);
358
359 ppage0_alloc->BBCredit =
360 le16_to_cpu(ppage0_alloc->BBCredit);
361
362 ppage0_alloc->MaxRxFrameSize =
363 le16_to_cpu(ppage0_alloc->MaxRxFrameSize);
364
365 port_id = ppage0_alloc->PortIdentifier;
366 num_targ++;
367 *p_p0 = *ppage0_alloc; /* save data */
368 *p_pp0++ = p_p0++; /* save addr */
369 }
370 dma_free_coherent(&ioc->pcidev->dev, data_sz,
371 ppage0_alloc, page0_dma);
372 if (rc != 0)
373 break;
374
375 } while (port_id <= 0xff0000);
376
377 if (num_targ) {
378 /* sort array */
379 if (num_targ > 1)
380 sort (pp0_array, num_targ, sizeof(FCDevicePage0_t *),
381 mptfc_FcDevPage0_cmp_func, NULL);
382 /* call caller's func for each targ */
383 for (ii = 0; ii < num_targ; ii++) {
384 fc = *(pp0_array+ii);
385 func(ioc, ioc_port, fc);
386 }
387 }
388
389 out:
390 kfree(pp0_array);
391 kfree(p0_array);
392 return rc;
393}
394
395static int
396mptfc_generate_rport_ids(FCDevicePage0_t *pg0, struct fc_rport_identifiers *rid)
397{
398 /* not currently usable */
399 if (pg0->Flags & (MPI_FC_DEVICE_PAGE0_FLAGS_PLOGI_INVALID |
400 MPI_FC_DEVICE_PAGE0_FLAGS_PRLI_INVALID))
401 return -1;
402
403 if (!(pg0->Flags & MPI_FC_DEVICE_PAGE0_FLAGS_TARGETID_BUS_VALID))
404 return -1;
405
406 if (!(pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_TARGET))
407 return -1;
408
409 /*
410 * board data structure already normalized to platform endianness
411 * shifted to avoid unaligned access on 64 bit architecture
412 */
413 rid->node_name = ((u64)pg0->WWNN.High) << 32 | (u64)pg0->WWNN.Low;
414 rid->port_name = ((u64)pg0->WWPN.High) << 32 | (u64)pg0->WWPN.Low;
415 rid->port_id = pg0->PortIdentifier;
416 rid->roles = FC_RPORT_ROLE_UNKNOWN;
417
418 return 0;
419}
420
421static void
422mptfc_register_dev(MPT_ADAPTER *ioc, int channel, FCDevicePage0_t *pg0)
423{
424 struct fc_rport_identifiers rport_ids;
425 struct fc_rport *rport;
426 struct mptfc_rport_info *ri;
427 int new_ri = 1;
428 u64 pn, nn;
429 VirtTarget *vtarget;
430 u32 roles = FC_RPORT_ROLE_UNKNOWN;
431
432 if (mptfc_generate_rport_ids(pg0, &rport_ids) < 0)
433 return;
434
435 roles |= FC_RPORT_ROLE_FCP_TARGET;
436 if (pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_INITIATOR)
437 roles |= FC_RPORT_ROLE_FCP_INITIATOR;
438
439 /* scan list looking for a match */
440 list_for_each_entry(ri, &ioc->fc_rports, list) {
441 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
442 if (pn == rport_ids.port_name) { /* match */
443 list_move_tail(&ri->list, &ioc->fc_rports);
444 new_ri = 0;
445 break;
446 }
447 }
448 if (new_ri) { /* allocate one */
449 ri = kzalloc(sizeof(struct mptfc_rport_info), GFP_KERNEL);
450 if (!ri)
451 return;
452 list_add_tail(&ri->list, &ioc->fc_rports);
453 }
454
455 ri->pg0 = *pg0; /* add/update pg0 data */
456 ri->flags &= ~MPT_RPORT_INFO_FLAGS_MISSING;
457
458 /* MPT_RPORT_INFO_FLAGS_REGISTERED - rport not previously deleted */
459 if (!(ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED)) {
460 ri->flags |= MPT_RPORT_INFO_FLAGS_REGISTERED;
461 rport = fc_remote_port_add(ioc->sh, channel, &rport_ids);
462 if (rport) {
463 ri->rport = rport;
464 if (new_ri) /* may have been reset by user */
465 rport->dev_loss_tmo = mptfc_dev_loss_tmo;
466 /*
467 * if already mapped, remap here. If not mapped,
468 * target_alloc will allocate vtarget and map,
469 * slave_alloc will fill in vdevice from vtarget.
470 */
471 if (ri->starget) {
472 vtarget = ri->starget->hostdata;
473 if (vtarget) {
474 vtarget->id = pg0->CurrentTargetID;
475 vtarget->channel = pg0->CurrentBus;
476 vtarget->deleted = 0;
477 }
478 }
479 *((struct mptfc_rport_info **)rport->dd_data) = ri;
480 /* scan will be scheduled once rport becomes a target */
481 fc_remote_port_rolechg(rport,roles);
482
483 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
484 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low;
485 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
486 "mptfc_reg_dev.%d: %x, %llx / %llx, tid %d, "
487 "rport tid %d, tmo %d\n",
488 ioc->name,
489 ioc->sh->host_no,
490 pg0->PortIdentifier,
491 (unsigned long long)nn,
492 (unsigned long long)pn,
493 pg0->CurrentTargetID,
494 ri->rport->scsi_target_id,
495 ri->rport->dev_loss_tmo));
496 } else {
497 list_del(&ri->list);
498 kfree(ri);
499 ri = NULL;
500 }
501 }
502}
503
504/*
505 * OS entry point to allow for host driver to free allocated memory
506 * Called if no device present or device being unloaded
507 */
508static void
509mptfc_target_destroy(struct scsi_target *starget)
510{
511 struct fc_rport *rport;
512 struct mptfc_rport_info *ri;
513
514 rport = starget_to_rport(starget);
515 if (rport) {
516 ri = *((struct mptfc_rport_info **)rport->dd_data);
517 if (ri) /* better be! */
518 ri->starget = NULL;
519 }
520 kfree(starget->hostdata);
521 starget->hostdata = NULL;
522}
523
524/*
525 * OS entry point to allow host driver to alloc memory
526 * for each scsi target. Called once per device the bus scan.
527 * Return non-zero if allocation fails.
528 */
529static int
530mptfc_target_alloc(struct scsi_target *starget)
531{
532 VirtTarget *vtarget;
533 struct fc_rport *rport;
534 struct mptfc_rport_info *ri;
535 int rc;
536
537 vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL);
538 if (!vtarget)
539 return -ENOMEM;
540 starget->hostdata = vtarget;
541
542 rc = -ENODEV;
543 rport = starget_to_rport(starget);
544 if (rport) {
545 ri = *((struct mptfc_rport_info **)rport->dd_data);
546 if (ri) { /* better be! */
547 vtarget->id = ri->pg0.CurrentTargetID;
548 vtarget->channel = ri->pg0.CurrentBus;
549 ri->starget = starget;
550 rc = 0;
551 }
552 }
553 if (rc != 0) {
554 kfree(vtarget);
555 starget->hostdata = NULL;
556 }
557
558 return rc;
559}
560/*
561 * mptfc_dump_lun_info
562 * @ioc
563 * @rport
564 * @sdev
565 *
566 */
567static void
568mptfc_dump_lun_info(MPT_ADAPTER *ioc, struct fc_rport *rport, struct scsi_device *sdev,
569 VirtTarget *vtarget)
570{
571 u64 nn, pn;
572 struct mptfc_rport_info *ri;
573
574 ri = *((struct mptfc_rport_info **)rport->dd_data);
575 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
576 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low;
577 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
578 "mptfc_slv_alloc.%d: num_luns %d, sdev.id %d, "
579 "CurrentTargetID %d, %x %llx %llx\n",
580 ioc->name,
581 sdev->host->host_no,
582 vtarget->num_luns,
583 sdev->id, ri->pg0.CurrentTargetID,
584 ri->pg0.PortIdentifier,
585 (unsigned long long)pn,
586 (unsigned long long)nn));
587}
588
589
590/*
591 * OS entry point to allow host driver to alloc memory
592 * for each scsi device. Called once per device the bus scan.
593 * Return non-zero if allocation fails.
594 * Init memory once per LUN.
595 */
596static int
597mptfc_slave_alloc(struct scsi_device *sdev)
598{
599 MPT_SCSI_HOST *hd;
600 VirtTarget *vtarget;
601 VirtDevice *vdevice;
602 struct scsi_target *starget;
603 struct fc_rport *rport;
604 MPT_ADAPTER *ioc;
605
606 starget = scsi_target(sdev);
607 rport = starget_to_rport(starget);
608
609 if (!rport || fc_remote_port_chkready(rport))
610 return -ENXIO;
611
612 hd = shost_priv(sdev->host);
613 ioc = hd->ioc;
614
615 vdevice = kzalloc(sizeof(VirtDevice), GFP_KERNEL);
616 if (!vdevice) {
617 printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n",
618 ioc->name, sizeof(VirtDevice));
619 return -ENOMEM;
620 }
621
622
623 sdev->hostdata = vdevice;
624 vtarget = starget->hostdata;
625
626 if (vtarget->num_luns == 0) {
627 vtarget->ioc_id = ioc->id;
628 vtarget->tflags = MPT_TARGET_FLAGS_Q_YES;
629 }
630
631 vdevice->vtarget = vtarget;
632 vdevice->lun = sdev->lun;
633
634 vtarget->num_luns++;
635
636
637 mptfc_dump_lun_info(ioc, rport, sdev, vtarget);
638
639 return 0;
640}
641
642static int
643mptfc_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *SCpnt)
644{
645 struct mptfc_rport_info *ri;
646 struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device));
647 int err;
648 VirtDevice *vdevice = SCpnt->device->hostdata;
649
650 if (!vdevice || !vdevice->vtarget) {
651 SCpnt->result = DID_NO_CONNECT << 16;
652 scsi_done(SCpnt);
653 return 0;
654 }
655
656 err = fc_remote_port_chkready(rport);
657 if (unlikely(err)) {
658 SCpnt->result = err;
659 scsi_done(SCpnt);
660 return 0;
661 }
662
663 /* dd_data is null until finished adding target */
664 ri = *((struct mptfc_rport_info **)rport->dd_data);
665 if (unlikely(!ri)) {
666 SCpnt->result = DID_IMM_RETRY << 16;
667 scsi_done(SCpnt);
668 return 0;
669 }
670
671 return mptscsih_qcmd(SCpnt);
672}
673
674/*
675 * mptfc_display_port_link_speed - displaying link speed
676 * @ioc: Pointer to MPT_ADAPTER structure
677 * @portnum: IOC Port number
678 * @pp0dest: port page0 data payload
679 *
680 */
681static void
682mptfc_display_port_link_speed(MPT_ADAPTER *ioc, int portnum, FCPortPage0_t *pp0dest)
683{
684 u8 old_speed, new_speed, state;
685 char *old, *new;
686
687 if (portnum >= 2)
688 return;
689
690 old_speed = ioc->fc_link_speed[portnum];
691 new_speed = pp0dest->CurrentSpeed;
692 state = pp0dest->PortState;
693
694 if (state != MPI_FCPORTPAGE0_PORTSTATE_OFFLINE &&
695 new_speed != MPI_FCPORTPAGE0_CURRENT_SPEED_UNKNOWN) {
696
697 old = old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" :
698 old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" :
699 old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" :
700 "Unknown";
701 new = new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" :
702 new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" :
703 new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" :
704 "Unknown";
705 if (old_speed == 0)
706 printk(MYIOC_s_NOTE_FMT
707 "FC Link Established, Speed = %s\n",
708 ioc->name, new);
709 else if (old_speed != new_speed)
710 printk(MYIOC_s_WARN_FMT
711 "FC Link Speed Change, Old Speed = %s, New Speed = %s\n",
712 ioc->name, old, new);
713
714 ioc->fc_link_speed[portnum] = new_speed;
715 }
716}
717
718/*
719 * mptfc_GetFcPortPage0 - Fetch FCPort config Page0.
720 * @ioc: Pointer to MPT_ADAPTER structure
721 * @portnum: IOC Port number
722 *
723 * Return: 0 for success
724 * -ENOMEM if no memory available
725 * -EPERM if not allowed due to ISR context
726 * -EAGAIN if no msg frames currently available
727 * -EFAULT for non-successful reply or no reply (timeout)
728 * -EINVAL portnum arg out of range (hardwired to two elements)
729 */
730static int
731mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum)
732{
733 ConfigPageHeader_t hdr;
734 CONFIGPARMS cfg;
735 FCPortPage0_t *ppage0_alloc;
736 FCPortPage0_t *pp0dest;
737 dma_addr_t page0_dma;
738 int data_sz;
739 int copy_sz;
740 int rc;
741 int count = 400;
742
743 if (portnum > 1)
744 return -EINVAL;
745
746 /* Get FCPort Page 0 header */
747 hdr.PageVersion = 0;
748 hdr.PageLength = 0;
749 hdr.PageNumber = 0;
750 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
751 cfg.cfghdr.hdr = &hdr;
752 cfg.physAddr = -1;
753 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
754 cfg.dir = 0;
755 cfg.pageAddr = portnum;
756 cfg.timeout = 0;
757
758 if ((rc = mpt_config(ioc, &cfg)) != 0)
759 return rc;
760
761 if (hdr.PageLength == 0)
762 return 0;
763
764 data_sz = hdr.PageLength * 4;
765 rc = -ENOMEM;
766 ppage0_alloc = dma_alloc_coherent(&ioc->pcidev->dev, data_sz,
767 &page0_dma, GFP_KERNEL);
768 if (ppage0_alloc) {
769
770 try_again:
771 memset((u8 *)ppage0_alloc, 0, data_sz);
772 cfg.physAddr = page0_dma;
773 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
774
775 if ((rc = mpt_config(ioc, &cfg)) == 0) {
776 /* save the data */
777 pp0dest = &ioc->fc_port_page0[portnum];
778 copy_sz = min_t(int, sizeof(FCPortPage0_t), data_sz);
779 memcpy(pp0dest, ppage0_alloc, copy_sz);
780
781 /*
782 * Normalize endianness of structure data,
783 * by byte-swapping all > 1 byte fields!
784 */
785 pp0dest->Flags = le32_to_cpu(pp0dest->Flags);
786 pp0dest->PortIdentifier = le32_to_cpu(pp0dest->PortIdentifier);
787 pp0dest->WWNN.Low = le32_to_cpu(pp0dest->WWNN.Low);
788 pp0dest->WWNN.High = le32_to_cpu(pp0dest->WWNN.High);
789 pp0dest->WWPN.Low = le32_to_cpu(pp0dest->WWPN.Low);
790 pp0dest->WWPN.High = le32_to_cpu(pp0dest->WWPN.High);
791 pp0dest->SupportedServiceClass = le32_to_cpu(pp0dest->SupportedServiceClass);
792 pp0dest->SupportedSpeeds = le32_to_cpu(pp0dest->SupportedSpeeds);
793 pp0dest->CurrentSpeed = le32_to_cpu(pp0dest->CurrentSpeed);
794 pp0dest->MaxFrameSize = le32_to_cpu(pp0dest->MaxFrameSize);
795 pp0dest->FabricWWNN.Low = le32_to_cpu(pp0dest->FabricWWNN.Low);
796 pp0dest->FabricWWNN.High = le32_to_cpu(pp0dest->FabricWWNN.High);
797 pp0dest->FabricWWPN.Low = le32_to_cpu(pp0dest->FabricWWPN.Low);
798 pp0dest->FabricWWPN.High = le32_to_cpu(pp0dest->FabricWWPN.High);
799 pp0dest->DiscoveredPortsCount = le32_to_cpu(pp0dest->DiscoveredPortsCount);
800 pp0dest->MaxInitiators = le32_to_cpu(pp0dest->MaxInitiators);
801
802 /*
803 * if still doing discovery,
804 * hang loose a while until finished
805 */
806 if ((pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) ||
807 (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE &&
808 (pp0dest->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_TYPE_MASK)
809 == MPI_FCPORTPAGE0_FLAGS_ATTACH_NO_INIT)) {
810 if (count-- > 0) {
811 msleep(100);
812 goto try_again;
813 }
814 printk(MYIOC_s_INFO_FMT "Firmware discovery not"
815 " complete.\n",
816 ioc->name);
817 }
818 mptfc_display_port_link_speed(ioc, portnum, pp0dest);
819 }
820
821 dma_free_coherent(&ioc->pcidev->dev, data_sz, ppage0_alloc,
822 page0_dma);
823 }
824
825 return rc;
826}
827
828static int
829mptfc_WriteFcPortPage1(MPT_ADAPTER *ioc, int portnum)
830{
831 ConfigPageHeader_t hdr;
832 CONFIGPARMS cfg;
833 int rc;
834
835 if (portnum > 1)
836 return -EINVAL;
837
838 if (!(ioc->fc_data.fc_port_page1[portnum].data))
839 return -EINVAL;
840
841 /* get fcport page 1 header */
842 hdr.PageVersion = 0;
843 hdr.PageLength = 0;
844 hdr.PageNumber = 1;
845 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
846 cfg.cfghdr.hdr = &hdr;
847 cfg.physAddr = -1;
848 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
849 cfg.dir = 0;
850 cfg.pageAddr = portnum;
851 cfg.timeout = 0;
852
853 if ((rc = mpt_config(ioc, &cfg)) != 0)
854 return rc;
855
856 if (hdr.PageLength == 0)
857 return -ENODEV;
858
859 if (hdr.PageLength*4 != ioc->fc_data.fc_port_page1[portnum].pg_sz)
860 return -EINVAL;
861
862 cfg.physAddr = ioc->fc_data.fc_port_page1[portnum].dma;
863 cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT;
864 cfg.dir = 1;
865
866 rc = mpt_config(ioc, &cfg);
867
868 return rc;
869}
870
871static int
872mptfc_GetFcPortPage1(MPT_ADAPTER *ioc, int portnum)
873{
874 ConfigPageHeader_t hdr;
875 CONFIGPARMS cfg;
876 FCPortPage1_t *page1_alloc;
877 dma_addr_t page1_dma;
878 int data_sz;
879 int rc;
880
881 if (portnum > 1)
882 return -EINVAL;
883
884 /* get fcport page 1 header */
885 hdr.PageVersion = 0;
886 hdr.PageLength = 0;
887 hdr.PageNumber = 1;
888 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
889 cfg.cfghdr.hdr = &hdr;
890 cfg.physAddr = -1;
891 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
892 cfg.dir = 0;
893 cfg.pageAddr = portnum;
894 cfg.timeout = 0;
895
896 if ((rc = mpt_config(ioc, &cfg)) != 0)
897 return rc;
898
899 if (hdr.PageLength == 0)
900 return -ENODEV;
901
902start_over:
903
904 if (ioc->fc_data.fc_port_page1[portnum].data == NULL) {
905 data_sz = hdr.PageLength * 4;
906 if (data_sz < sizeof(FCPortPage1_t))
907 data_sz = sizeof(FCPortPage1_t);
908
909 page1_alloc = dma_alloc_coherent(&ioc->pcidev->dev, data_sz,
910 &page1_dma, GFP_KERNEL);
911 if (!page1_alloc)
912 return -ENOMEM;
913 }
914 else {
915 page1_alloc = ioc->fc_data.fc_port_page1[portnum].data;
916 page1_dma = ioc->fc_data.fc_port_page1[portnum].dma;
917 data_sz = ioc->fc_data.fc_port_page1[portnum].pg_sz;
918 if (hdr.PageLength * 4 > data_sz) {
919 ioc->fc_data.fc_port_page1[portnum].data = NULL;
920 dma_free_coherent(&ioc->pcidev->dev, data_sz,
921 page1_alloc, page1_dma);
922 goto start_over;
923 }
924 }
925
926 cfg.physAddr = page1_dma;
927 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
928
929 if ((rc = mpt_config(ioc, &cfg)) == 0) {
930 ioc->fc_data.fc_port_page1[portnum].data = page1_alloc;
931 ioc->fc_data.fc_port_page1[portnum].pg_sz = data_sz;
932 ioc->fc_data.fc_port_page1[portnum].dma = page1_dma;
933 }
934 else {
935 ioc->fc_data.fc_port_page1[portnum].data = NULL;
936 dma_free_coherent(&ioc->pcidev->dev, data_sz, page1_alloc,
937 page1_dma);
938 }
939
940 return rc;
941}
942
943static void
944mptfc_SetFcPortPage1_defaults(MPT_ADAPTER *ioc)
945{
946 int ii;
947 FCPortPage1_t *pp1;
948
949 #define MPTFC_FW_DEVICE_TIMEOUT (1)
950 #define MPTFC_FW_IO_PEND_TIMEOUT (1)
951 #define ON_FLAGS (MPI_FCPORTPAGE1_FLAGS_IMMEDIATE_ERROR_REPLY)
952 #define OFF_FLAGS (MPI_FCPORTPAGE1_FLAGS_VERBOSE_RESCAN_EVENTS)
953
954 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) {
955 if (mptfc_GetFcPortPage1(ioc, ii) != 0)
956 continue;
957 pp1 = ioc->fc_data.fc_port_page1[ii].data;
958 if ((pp1->InitiatorDeviceTimeout == MPTFC_FW_DEVICE_TIMEOUT)
959 && (pp1->InitiatorIoPendTimeout == MPTFC_FW_IO_PEND_TIMEOUT)
960 && ((pp1->Flags & ON_FLAGS) == ON_FLAGS)
961 && ((pp1->Flags & OFF_FLAGS) == 0))
962 continue;
963 pp1->InitiatorDeviceTimeout = MPTFC_FW_DEVICE_TIMEOUT;
964 pp1->InitiatorIoPendTimeout = MPTFC_FW_IO_PEND_TIMEOUT;
965 pp1->Flags &= ~OFF_FLAGS;
966 pp1->Flags |= ON_FLAGS;
967 mptfc_WriteFcPortPage1(ioc, ii);
968 }
969}
970
971
972static void
973mptfc_init_host_attr(MPT_ADAPTER *ioc,int portnum)
974{
975 unsigned class = 0;
976 unsigned cos = 0;
977 unsigned speed;
978 unsigned port_type;
979 unsigned port_state;
980 FCPortPage0_t *pp0;
981 struct Scsi_Host *sh;
982 char *sn;
983
984 /* don't know what to do as only one scsi (fc) host was allocated */
985 if (portnum != 0)
986 return;
987
988 pp0 = &ioc->fc_port_page0[portnum];
989 sh = ioc->sh;
990
991 sn = fc_host_symbolic_name(sh);
992 snprintf(sn, FC_SYMBOLIC_NAME_SIZE, "%s %s%08xh",
993 ioc->prod_name,
994 MPT_FW_REV_MAGIC_ID_STRING,
995 ioc->facts.FWVersion.Word);
996
997 fc_host_tgtid_bind_type(sh) = FC_TGTID_BIND_BY_WWPN;
998
999 fc_host_maxframe_size(sh) = pp0->MaxFrameSize;
1000
1001 fc_host_node_name(sh) =
1002 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low;
1003
1004 fc_host_port_name(sh) =
1005 (u64)pp0->WWPN.High << 32 | (u64)pp0->WWPN.Low;
1006
1007 fc_host_port_id(sh) = pp0->PortIdentifier;
1008
1009 class = pp0->SupportedServiceClass;
1010 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_1)
1011 cos |= FC_COS_CLASS1;
1012 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_2)
1013 cos |= FC_COS_CLASS2;
1014 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_3)
1015 cos |= FC_COS_CLASS3;
1016 fc_host_supported_classes(sh) = cos;
1017
1018 if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT)
1019 speed = FC_PORTSPEED_1GBIT;
1020 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT)
1021 speed = FC_PORTSPEED_2GBIT;
1022 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT)
1023 speed = FC_PORTSPEED_4GBIT;
1024 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_10GBIT)
1025 speed = FC_PORTSPEED_10GBIT;
1026 else
1027 speed = FC_PORTSPEED_UNKNOWN;
1028 fc_host_speed(sh) = speed;
1029
1030 speed = 0;
1031 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_1GBIT_SPEED)
1032 speed |= FC_PORTSPEED_1GBIT;
1033 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_2GBIT_SPEED)
1034 speed |= FC_PORTSPEED_2GBIT;
1035 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_4GBIT_SPEED)
1036 speed |= FC_PORTSPEED_4GBIT;
1037 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_10GBIT_SPEED)
1038 speed |= FC_PORTSPEED_10GBIT;
1039 fc_host_supported_speeds(sh) = speed;
1040
1041 port_state = FC_PORTSTATE_UNKNOWN;
1042 if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE)
1043 port_state = FC_PORTSTATE_ONLINE;
1044 else if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_OFFLINE)
1045 port_state = FC_PORTSTATE_LINKDOWN;
1046 fc_host_port_state(sh) = port_state;
1047
1048 port_type = FC_PORTTYPE_UNKNOWN;
1049 if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_POINT_TO_POINT)
1050 port_type = FC_PORTTYPE_PTP;
1051 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PRIVATE_LOOP)
1052 port_type = FC_PORTTYPE_LPORT;
1053 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PUBLIC_LOOP)
1054 port_type = FC_PORTTYPE_NLPORT;
1055 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_FABRIC_DIRECT)
1056 port_type = FC_PORTTYPE_NPORT;
1057 fc_host_port_type(sh) = port_type;
1058
1059 fc_host_fabric_name(sh) =
1060 (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_FABRIC_WWN_VALID) ?
1061 (u64) pp0->FabricWWNN.High << 32 | (u64) pp0->FabricWWPN.Low :
1062 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low;
1063
1064}
1065
1066static void
1067mptfc_link_status_change(struct work_struct *work)
1068{
1069 MPT_ADAPTER *ioc =
1070 container_of(work, MPT_ADAPTER, fc_rescan_work);
1071 int ii;
1072
1073 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++)
1074 (void) mptfc_GetFcPortPage0(ioc, ii);
1075
1076}
1077
1078static void
1079mptfc_setup_reset(struct work_struct *work)
1080{
1081 MPT_ADAPTER *ioc =
1082 container_of(work, MPT_ADAPTER, fc_setup_reset_work);
1083 u64 pn;
1084 struct mptfc_rport_info *ri;
1085 struct scsi_target *starget;
1086 VirtTarget *vtarget;
1087
1088 /* reset about to happen, delete (block) all rports */
1089 list_for_each_entry(ri, &ioc->fc_rports, list) {
1090 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) {
1091 ri->flags &= ~MPT_RPORT_INFO_FLAGS_REGISTERED;
1092 fc_remote_port_delete(ri->rport); /* won't sleep */
1093 ri->rport = NULL;
1094 starget = ri->starget;
1095 if (starget) {
1096 vtarget = starget->hostdata;
1097 if (vtarget)
1098 vtarget->deleted = 1;
1099 }
1100
1101 pn = (u64)ri->pg0.WWPN.High << 32 |
1102 (u64)ri->pg0.WWPN.Low;
1103 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
1104 "mptfc_setup_reset.%d: %llx deleted\n",
1105 ioc->name,
1106 ioc->sh->host_no,
1107 (unsigned long long)pn));
1108 }
1109 }
1110}
1111
1112static void
1113mptfc_rescan_devices(struct work_struct *work)
1114{
1115 MPT_ADAPTER *ioc =
1116 container_of(work, MPT_ADAPTER, fc_rescan_work);
1117 int ii;
1118 u64 pn;
1119 struct mptfc_rport_info *ri;
1120 struct scsi_target *starget;
1121 VirtTarget *vtarget;
1122
1123 /* start by tagging all ports as missing */
1124 list_for_each_entry(ri, &ioc->fc_rports, list) {
1125 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) {
1126 ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING;
1127 }
1128 }
1129
1130 /*
1131 * now rescan devices known to adapter,
1132 * will reregister existing rports
1133 */
1134 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1135 (void) mptfc_GetFcPortPage0(ioc, ii);
1136 mptfc_init_host_attr(ioc, ii); /* refresh */
1137 mptfc_GetFcDevPage0(ioc, ii, mptfc_register_dev);
1138 }
1139
1140 /* delete devices still missing */
1141 list_for_each_entry(ri, &ioc->fc_rports, list) {
1142 /* if newly missing, delete it */
1143 if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) {
1144
1145 ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED|
1146 MPT_RPORT_INFO_FLAGS_MISSING);
1147 fc_remote_port_delete(ri->rport); /* won't sleep */
1148 ri->rport = NULL;
1149 starget = ri->starget;
1150 if (starget) {
1151 vtarget = starget->hostdata;
1152 if (vtarget)
1153 vtarget->deleted = 1;
1154 }
1155
1156 pn = (u64)ri->pg0.WWPN.High << 32 |
1157 (u64)ri->pg0.WWPN.Low;
1158 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
1159 "mptfc_rescan.%d: %llx deleted\n",
1160 ioc->name,
1161 ioc->sh->host_no,
1162 (unsigned long long)pn));
1163 }
1164 }
1165}
1166
1167static int
1168mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id)
1169{
1170 struct Scsi_Host *sh;
1171 MPT_SCSI_HOST *hd;
1172 MPT_ADAPTER *ioc;
1173 unsigned long flags;
1174 int ii;
1175 int numSGE = 0;
1176 int scale;
1177 int ioc_cap;
1178 int error=0;
1179 int r;
1180
1181 if ((r = mpt_attach(pdev,id)) != 0)
1182 return r;
1183
1184 ioc = pci_get_drvdata(pdev);
1185 ioc->DoneCtx = mptfcDoneCtx;
1186 ioc->TaskCtx = mptfcTaskCtx;
1187 ioc->InternalCtx = mptfcInternalCtx;
1188
1189 /* Added sanity check on readiness of the MPT adapter.
1190 */
1191 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) {
1192 printk(MYIOC_s_WARN_FMT
1193 "Skipping because it's not operational!\n",
1194 ioc->name);
1195 error = -ENODEV;
1196 goto out_mptfc_probe;
1197 }
1198
1199 if (!ioc->active) {
1200 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n",
1201 ioc->name);
1202 error = -ENODEV;
1203 goto out_mptfc_probe;
1204 }
1205
1206 /* Sanity check - ensure at least 1 port is INITIATOR capable
1207 */
1208 ioc_cap = 0;
1209 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1210 if (ioc->pfacts[ii].ProtocolFlags &
1211 MPI_PORTFACTS_PROTOCOL_INITIATOR)
1212 ioc_cap ++;
1213 }
1214
1215 if (!ioc_cap) {
1216 printk(MYIOC_s_WARN_FMT
1217 "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n",
1218 ioc->name, ioc);
1219 return 0;
1220 }
1221
1222 sh = scsi_host_alloc(&mptfc_driver_template, sizeof(MPT_SCSI_HOST));
1223
1224 if (!sh) {
1225 printk(MYIOC_s_WARN_FMT
1226 "Unable to register controller with SCSI subsystem\n",
1227 ioc->name);
1228 error = -1;
1229 goto out_mptfc_probe;
1230 }
1231
1232 spin_lock_init(&ioc->fc_rescan_work_lock);
1233 INIT_WORK(&ioc->fc_rescan_work, mptfc_rescan_devices);
1234 INIT_WORK(&ioc->fc_setup_reset_work, mptfc_setup_reset);
1235 INIT_WORK(&ioc->fc_lsc_work, mptfc_link_status_change);
1236
1237 spin_lock_irqsave(&ioc->FreeQlock, flags);
1238
1239 /* Attach the SCSI Host to the IOC structure
1240 */
1241 ioc->sh = sh;
1242
1243 sh->io_port = 0;
1244 sh->n_io_port = 0;
1245 sh->irq = 0;
1246
1247 /* set 16 byte cdb's */
1248 sh->max_cmd_len = 16;
1249
1250 sh->max_id = ioc->pfacts->MaxDevices;
1251 sh->max_lun = max_lun;
1252
1253 /* Required entry.
1254 */
1255 sh->unique_id = ioc->id;
1256
1257 /* Verify that we won't exceed the maximum
1258 * number of chain buffers
1259 * We can optimize: ZZ = req_sz/sizeof(SGE)
1260 * For 32bit SGE's:
1261 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ
1262 * + (req_sz - 64)/sizeof(SGE)
1263 * A slightly different algorithm is required for
1264 * 64bit SGEs.
1265 */
1266 scale = ioc->req_sz/ioc->SGE_size;
1267 if (ioc->sg_addr_size == sizeof(u64)) {
1268 numSGE = (scale - 1) *
1269 (ioc->facts.MaxChainDepth-1) + scale +
1270 (ioc->req_sz - 60) / ioc->SGE_size;
1271 } else {
1272 numSGE = 1 + (scale - 1) *
1273 (ioc->facts.MaxChainDepth-1) + scale +
1274 (ioc->req_sz - 64) / ioc->SGE_size;
1275 }
1276
1277 if (numSGE < sh->sg_tablesize) {
1278 /* Reset this value */
1279 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1280 "Resetting sg_tablesize to %d from %d\n",
1281 ioc->name, numSGE, sh->sg_tablesize));
1282 sh->sg_tablesize = numSGE;
1283 }
1284
1285 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1286
1287 hd = shost_priv(sh);
1288 hd->ioc = ioc;
1289
1290 /* SCSI needs scsi_cmnd lookup table!
1291 * (with size equal to req_depth*PtrSz!)
1292 */
1293 ioc->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_KERNEL);
1294 if (!ioc->ScsiLookup) {
1295 error = -ENOMEM;
1296 goto out_mptfc_probe;
1297 }
1298 spin_lock_init(&ioc->scsi_lookup_lock);
1299
1300 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScsiLookup @ %p\n",
1301 ioc->name, ioc->ScsiLookup));
1302
1303 hd->last_queue_full = 0;
1304
1305 sh->transportt = mptfc_transport_template;
1306 error = scsi_add_host (sh, &ioc->pcidev->dev);
1307 if(error) {
1308 dprintk(ioc, printk(MYIOC_s_ERR_FMT
1309 "scsi_add_host failed\n", ioc->name));
1310 goto out_mptfc_probe;
1311 }
1312
1313 /* initialize workqueue */
1314
1315 snprintf(ioc->fc_rescan_work_q_name, sizeof(ioc->fc_rescan_work_q_name),
1316 "mptfc_wq_%d", sh->host_no);
1317 ioc->fc_rescan_work_q =
1318 alloc_ordered_workqueue(ioc->fc_rescan_work_q_name,
1319 WQ_MEM_RECLAIM);
1320 if (!ioc->fc_rescan_work_q) {
1321 error = -ENOMEM;
1322 goto out_mptfc_host;
1323 }
1324
1325 /*
1326 * Pre-fetch FC port WWN and stuff...
1327 * (FCPortPage0_t stuff)
1328 */
1329 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1330 (void) mptfc_GetFcPortPage0(ioc, ii);
1331 }
1332 mptfc_SetFcPortPage1_defaults(ioc);
1333
1334 /*
1335 * scan for rports -
1336 * by doing it via the workqueue, some locking is eliminated
1337 */
1338
1339 queue_work(ioc->fc_rescan_work_q, &ioc->fc_rescan_work);
1340 flush_workqueue(ioc->fc_rescan_work_q);
1341
1342 return 0;
1343
1344out_mptfc_host:
1345 scsi_remove_host(sh);
1346
1347out_mptfc_probe:
1348
1349 mptscsih_remove(pdev);
1350 return error;
1351}
1352
1353static struct pci_driver mptfc_driver = {
1354 .name = "mptfc",
1355 .id_table = mptfc_pci_table,
1356 .probe = mptfc_probe,
1357 .remove = mptfc_remove,
1358 .shutdown = mptscsih_shutdown,
1359#ifdef CONFIG_PM
1360 .suspend = mptscsih_suspend,
1361 .resume = mptscsih_resume,
1362#endif
1363};
1364
1365static int
1366mptfc_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
1367{
1368 MPT_SCSI_HOST *hd;
1369 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
1370 unsigned long flags;
1371 int rc=1;
1372
1373 if (ioc->bus_type != FC)
1374 return 0;
1375
1376 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n",
1377 ioc->name, event));
1378
1379 if (ioc->sh == NULL ||
1380 ((hd = shost_priv(ioc->sh)) == NULL))
1381 return 1;
1382
1383 switch (event) {
1384 case MPI_EVENT_RESCAN:
1385 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1386 if (ioc->fc_rescan_work_q) {
1387 queue_work(ioc->fc_rescan_work_q,
1388 &ioc->fc_rescan_work);
1389 }
1390 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1391 break;
1392 case MPI_EVENT_LINK_STATUS_CHANGE:
1393 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1394 if (ioc->fc_rescan_work_q) {
1395 queue_work(ioc->fc_rescan_work_q,
1396 &ioc->fc_lsc_work);
1397 }
1398 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1399 break;
1400 default:
1401 rc = mptscsih_event_process(ioc,pEvReply);
1402 break;
1403 }
1404 return rc;
1405}
1406
1407static int
1408mptfc_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
1409{
1410 int rc;
1411 unsigned long flags;
1412
1413 rc = mptscsih_ioc_reset(ioc,reset_phase);
1414 if ((ioc->bus_type != FC) || (!rc))
1415 return rc;
1416
1417
1418 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1419 ": IOC %s_reset routed to FC host driver!\n",ioc->name,
1420 reset_phase==MPT_IOC_SETUP_RESET ? "setup" : (
1421 reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post")));
1422
1423 if (reset_phase == MPT_IOC_SETUP_RESET) {
1424 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1425 if (ioc->fc_rescan_work_q) {
1426 queue_work(ioc->fc_rescan_work_q,
1427 &ioc->fc_setup_reset_work);
1428 }
1429 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1430 }
1431
1432 else if (reset_phase == MPT_IOC_PRE_RESET) {
1433 }
1434
1435 else { /* MPT_IOC_POST_RESET */
1436 mptfc_SetFcPortPage1_defaults(ioc);
1437 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1438 if (ioc->fc_rescan_work_q) {
1439 queue_work(ioc->fc_rescan_work_q,
1440 &ioc->fc_rescan_work);
1441 }
1442 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1443 }
1444 return 1;
1445}
1446
1447/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1448/**
1449 * mptfc_init - Register MPT adapter(s) as SCSI host(s) with SCSI mid-layer.
1450 *
1451 * Returns 0 for success, non-zero for failure.
1452 */
1453static int __init
1454mptfc_init(void)
1455{
1456 int error;
1457
1458 show_mptmod_ver(my_NAME, my_VERSION);
1459
1460 /* sanity check module parameters */
1461 if (mptfc_dev_loss_tmo <= 0)
1462 mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO;
1463
1464 mptfc_transport_template =
1465 fc_attach_transport(&mptfc_transport_functions);
1466
1467 if (!mptfc_transport_template)
1468 return -ENODEV;
1469
1470 mptfcDoneCtx = mpt_register(mptscsih_io_done, MPTFC_DRIVER,
1471 "mptscsih_scandv_complete");
1472 mptfcTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTFC_DRIVER,
1473 "mptscsih_scandv_complete");
1474 mptfcInternalCtx = mpt_register(mptscsih_scandv_complete, MPTFC_DRIVER,
1475 "mptscsih_scandv_complete");
1476
1477 mpt_event_register(mptfcDoneCtx, mptfc_event_process);
1478 mpt_reset_register(mptfcDoneCtx, mptfc_ioc_reset);
1479
1480 error = pci_register_driver(&mptfc_driver);
1481 if (error)
1482 fc_release_transport(mptfc_transport_template);
1483
1484 return error;
1485}
1486
1487/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1488/**
1489 * mptfc_remove - Remove fc infrastructure for devices
1490 * @pdev: Pointer to pci_dev structure
1491 *
1492 */
1493static void mptfc_remove(struct pci_dev *pdev)
1494{
1495 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1496 struct mptfc_rport_info *p, *n;
1497 struct workqueue_struct *work_q;
1498 unsigned long flags;
1499 int ii;
1500
1501 /* destroy workqueue */
1502 if ((work_q=ioc->fc_rescan_work_q)) {
1503 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1504 ioc->fc_rescan_work_q = NULL;
1505 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1506 destroy_workqueue(work_q);
1507 }
1508
1509 fc_remove_host(ioc->sh);
1510
1511 list_for_each_entry_safe(p, n, &ioc->fc_rports, list) {
1512 list_del(&p->list);
1513 kfree(p);
1514 }
1515
1516 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) {
1517 if (ioc->fc_data.fc_port_page1[ii].data) {
1518 dma_free_coherent(&ioc->pcidev->dev,
1519 ioc->fc_data.fc_port_page1[ii].pg_sz,
1520 ioc->fc_data.fc_port_page1[ii].data,
1521 ioc->fc_data.fc_port_page1[ii].dma);
1522 ioc->fc_data.fc_port_page1[ii].data = NULL;
1523 }
1524 }
1525
1526 scsi_remove_host(ioc->sh);
1527
1528 mptscsih_remove(pdev);
1529}
1530
1531/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1532/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1533/**
1534 * mptfc_exit - Unregisters MPT adapter(s)
1535 *
1536 */
1537static void __exit
1538mptfc_exit(void)
1539{
1540 pci_unregister_driver(&mptfc_driver);
1541 fc_release_transport(mptfc_transport_template);
1542
1543 mpt_reset_deregister(mptfcDoneCtx);
1544 mpt_event_deregister(mptfcDoneCtx);
1545
1546 mpt_deregister(mptfcInternalCtx);
1547 mpt_deregister(mptfcTaskCtx);
1548 mpt_deregister(mptfcDoneCtx);
1549}
1550
1551module_init(mptfc_init);
1552module_exit(mptfc_exit);
1/*
2 * linux/drivers/message/fusion/mptfc.c
3 * For use with LSI PCI chip/adapter(s)
4 * running LSI Fusion MPT (Message Passing Technology) firmware.
5 *
6 * Copyright (c) 1999-2008 LSI Corporation
7 * (mailto:DL-MPTFusionLinux@lsi.com)
8 *
9 */
10/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
11/*
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; version 2 of the License.
15
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
20
21 NO WARRANTY
22 THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
23 CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
24 LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
25 MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
26 solely responsible for determining the appropriateness of using and
27 distributing the Program and assumes all risks associated with its
28 exercise of rights under this Agreement, including but not limited to
29 the risks and costs of program errors, damage to or loss of data,
30 programs or equipment, and unavailability or interruption of operations.
31
32 DISCLAIMER OF LIABILITY
33 NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
34 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
35 DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
36 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
37 TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
38 USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
39 HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
40
41 You should have received a copy of the GNU General Public License
42 along with this program; if not, write to the Free Software
43 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
44*/
45/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
46#include <linux/module.h>
47#include <linux/kernel.h>
48#include <linux/init.h>
49#include <linux/errno.h>
50#include <linux/kdev_t.h>
51#include <linux/blkdev.h>
52#include <linux/delay.h> /* for mdelay */
53#include <linux/interrupt.h> /* needed for in_interrupt() proto */
54#include <linux/reboot.h> /* notifier code */
55#include <linux/workqueue.h>
56#include <linux/sort.h>
57#include <linux/slab.h>
58
59#include <scsi/scsi.h>
60#include <scsi/scsi_cmnd.h>
61#include <scsi/scsi_device.h>
62#include <scsi/scsi_host.h>
63#include <scsi/scsi_tcq.h>
64#include <scsi/scsi_transport_fc.h>
65
66#include "mptbase.h"
67#include "mptscsih.h"
68
69/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
70#define my_NAME "Fusion MPT FC Host driver"
71#define my_VERSION MPT_LINUX_VERSION_COMMON
72#define MYNAM "mptfc"
73
74MODULE_AUTHOR(MODULEAUTHOR);
75MODULE_DESCRIPTION(my_NAME);
76MODULE_LICENSE("GPL");
77MODULE_VERSION(my_VERSION);
78
79/* Command line args */
80#define MPTFC_DEV_LOSS_TMO (60)
81static int mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO; /* reasonable default */
82module_param(mptfc_dev_loss_tmo, int, 0);
83MODULE_PARM_DESC(mptfc_dev_loss_tmo, " Initial time the driver programs the "
84 " transport to wait for an rport to "
85 " return following a device loss event."
86 " Default=60.");
87
88/* scsi-mid layer global parmeter is max_report_luns, which is 511 */
89#define MPTFC_MAX_LUN (16895)
90static int max_lun = MPTFC_MAX_LUN;
91module_param(max_lun, int, 0);
92MODULE_PARM_DESC(max_lun, " max lun, default=16895 ");
93
94static u8 mptfcDoneCtx = MPT_MAX_PROTOCOL_DRIVERS;
95static u8 mptfcTaskCtx = MPT_MAX_PROTOCOL_DRIVERS;
96static u8 mptfcInternalCtx = MPT_MAX_PROTOCOL_DRIVERS;
97
98static int mptfc_target_alloc(struct scsi_target *starget);
99static int mptfc_slave_alloc(struct scsi_device *sdev);
100static int mptfc_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *SCpnt);
101static void mptfc_target_destroy(struct scsi_target *starget);
102static void mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout);
103static void mptfc_remove(struct pci_dev *pdev);
104static int mptfc_abort(struct scsi_cmnd *SCpnt);
105static int mptfc_dev_reset(struct scsi_cmnd *SCpnt);
106static int mptfc_bus_reset(struct scsi_cmnd *SCpnt);
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 .show_info = mptscsih_show_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:%llu, port status is "
208 "%x, active flag %d, deferring %s recovery.\n",
209 ioc->name, ioc->sh->host_no,
210 SCpnt->device->id, SCpnt->device->lun,
211 ready, ioc->active, caller));
212 msleep(1000);
213 spin_lock_irqsave(shost->host_lock, flags);
214 loops --;
215 }
216 spin_unlock_irqrestore(shost->host_lock, flags);
217
218 if (ready == DID_NO_CONNECT || !SCpnt->device->hostdata
219 || ioc->active == 0) {
220 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
221 "%s.%d: %d:%llu, failing recovery, "
222 "port state %x, active %d, vdevice %p.\n", caller,
223 ioc->name, ioc->sh->host_no,
224 SCpnt->device->id, SCpnt->device->lun, ready,
225 ioc->active, SCpnt->device->hostdata));
226 return FAILED;
227 }
228 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
229 "%s.%d: %d:%llu, executing recovery.\n", caller,
230 ioc->name, ioc->sh->host_no,
231 SCpnt->device->id, SCpnt->device->lun));
232 return (*func)(SCpnt);
233}
234
235static int
236mptfc_abort(struct scsi_cmnd *SCpnt)
237{
238 return
239 mptfc_block_error_handler(SCpnt, mptscsih_abort, __func__);
240}
241
242static int
243mptfc_dev_reset(struct scsi_cmnd *SCpnt)
244{
245 return
246 mptfc_block_error_handler(SCpnt, mptscsih_dev_reset, __func__);
247}
248
249static int
250mptfc_bus_reset(struct scsi_cmnd *SCpnt)
251{
252 return
253 mptfc_block_error_handler(SCpnt, mptscsih_bus_reset, __func__);
254}
255
256static 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 kfree(starget->hostdata);
529 starget->hostdata = NULL;
530}
531
532/*
533 * OS entry point to allow host driver to alloc memory
534 * for each scsi target. Called once per device the bus scan.
535 * Return non-zero if allocation fails.
536 */
537static int
538mptfc_target_alloc(struct scsi_target *starget)
539{
540 VirtTarget *vtarget;
541 struct fc_rport *rport;
542 struct mptfc_rport_info *ri;
543 int rc;
544
545 vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL);
546 if (!vtarget)
547 return -ENOMEM;
548 starget->hostdata = vtarget;
549
550 rc = -ENODEV;
551 rport = starget_to_rport(starget);
552 if (rport) {
553 ri = *((struct mptfc_rport_info **)rport->dd_data);
554 if (ri) { /* better be! */
555 vtarget->id = ri->pg0.CurrentTargetID;
556 vtarget->channel = ri->pg0.CurrentBus;
557 ri->starget = starget;
558 rc = 0;
559 }
560 }
561 if (rc != 0) {
562 kfree(vtarget);
563 starget->hostdata = NULL;
564 }
565
566 return rc;
567}
568/*
569 * mptfc_dump_lun_info
570 * @ioc
571 * @rport
572 * @sdev
573 *
574 */
575static void
576mptfc_dump_lun_info(MPT_ADAPTER *ioc, struct fc_rport *rport, struct scsi_device *sdev,
577 VirtTarget *vtarget)
578{
579 u64 nn, pn;
580 struct mptfc_rport_info *ri;
581
582 ri = *((struct mptfc_rport_info **)rport->dd_data);
583 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
584 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low;
585 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
586 "mptfc_slv_alloc.%d: num_luns %d, sdev.id %d, "
587 "CurrentTargetID %d, %x %llx %llx\n",
588 ioc->name,
589 sdev->host->host_no,
590 vtarget->num_luns,
591 sdev->id, ri->pg0.CurrentTargetID,
592 ri->pg0.PortIdentifier,
593 (unsigned long long)pn,
594 (unsigned long long)nn));
595}
596
597
598/*
599 * OS entry point to allow host driver to alloc memory
600 * for each scsi device. Called once per device the bus scan.
601 * Return non-zero if allocation fails.
602 * Init memory once per LUN.
603 */
604static int
605mptfc_slave_alloc(struct scsi_device *sdev)
606{
607 MPT_SCSI_HOST *hd;
608 VirtTarget *vtarget;
609 VirtDevice *vdevice;
610 struct scsi_target *starget;
611 struct fc_rport *rport;
612 MPT_ADAPTER *ioc;
613
614 starget = scsi_target(sdev);
615 rport = starget_to_rport(starget);
616
617 if (!rport || fc_remote_port_chkready(rport))
618 return -ENXIO;
619
620 hd = shost_priv(sdev->host);
621 ioc = hd->ioc;
622
623 vdevice = kzalloc(sizeof(VirtDevice), GFP_KERNEL);
624 if (!vdevice) {
625 printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n",
626 ioc->name, sizeof(VirtDevice));
627 return -ENOMEM;
628 }
629
630
631 sdev->hostdata = vdevice;
632 vtarget = starget->hostdata;
633
634 if (vtarget->num_luns == 0) {
635 vtarget->ioc_id = ioc->id;
636 vtarget->tflags = MPT_TARGET_FLAGS_Q_YES;
637 }
638
639 vdevice->vtarget = vtarget;
640 vdevice->lun = sdev->lun;
641
642 vtarget->num_luns++;
643
644
645 mptfc_dump_lun_info(ioc, rport, sdev, vtarget);
646
647 return 0;
648}
649
650static int
651mptfc_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *SCpnt)
652{
653 struct mptfc_rport_info *ri;
654 struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device));
655 int err;
656 VirtDevice *vdevice = SCpnt->device->hostdata;
657
658 if (!vdevice || !vdevice->vtarget) {
659 SCpnt->result = DID_NO_CONNECT << 16;
660 SCpnt->scsi_done(SCpnt);
661 return 0;
662 }
663
664 err = fc_remote_port_chkready(rport);
665 if (unlikely(err)) {
666 SCpnt->result = err;
667 SCpnt->scsi_done(SCpnt);
668 return 0;
669 }
670
671 /* dd_data is null until finished adding target */
672 ri = *((struct mptfc_rport_info **)rport->dd_data);
673 if (unlikely(!ri)) {
674 SCpnt->result = DID_IMM_RETRY << 16;
675 SCpnt->scsi_done(SCpnt);
676 return 0;
677 }
678
679 return mptscsih_qcmd(SCpnt);
680}
681
682/*
683 * mptfc_display_port_link_speed - displaying link speed
684 * @ioc: Pointer to MPT_ADAPTER structure
685 * @portnum: IOC Port number
686 * @pp0dest: port page0 data payload
687 *
688 */
689static void
690mptfc_display_port_link_speed(MPT_ADAPTER *ioc, int portnum, FCPortPage0_t *pp0dest)
691{
692 u8 old_speed, new_speed, state;
693 char *old, *new;
694
695 if (portnum >= 2)
696 return;
697
698 old_speed = ioc->fc_link_speed[portnum];
699 new_speed = pp0dest->CurrentSpeed;
700 state = pp0dest->PortState;
701
702 if (state != MPI_FCPORTPAGE0_PORTSTATE_OFFLINE &&
703 new_speed != MPI_FCPORTPAGE0_CURRENT_SPEED_UKNOWN) {
704
705 old = old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" :
706 old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" :
707 old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" :
708 "Unknown";
709 new = new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" :
710 new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" :
711 new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" :
712 "Unknown";
713 if (old_speed == 0)
714 printk(MYIOC_s_NOTE_FMT
715 "FC Link Established, Speed = %s\n",
716 ioc->name, new);
717 else if (old_speed != new_speed)
718 printk(MYIOC_s_WARN_FMT
719 "FC Link Speed Change, Old Speed = %s, New Speed = %s\n",
720 ioc->name, old, new);
721
722 ioc->fc_link_speed[portnum] = new_speed;
723 }
724}
725
726/*
727 * mptfc_GetFcPortPage0 - Fetch FCPort config Page0.
728 * @ioc: Pointer to MPT_ADAPTER structure
729 * @portnum: IOC Port number
730 *
731 * Return: 0 for success
732 * -ENOMEM if no memory available
733 * -EPERM if not allowed due to ISR context
734 * -EAGAIN if no msg frames currently available
735 * -EFAULT for non-successful reply or no reply (timeout)
736 * -EINVAL portnum arg out of range (hardwired to two elements)
737 */
738static int
739mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum)
740{
741 ConfigPageHeader_t hdr;
742 CONFIGPARMS cfg;
743 FCPortPage0_t *ppage0_alloc;
744 FCPortPage0_t *pp0dest;
745 dma_addr_t page0_dma;
746 int data_sz;
747 int copy_sz;
748 int rc;
749 int count = 400;
750
751 if (portnum > 1)
752 return -EINVAL;
753
754 /* Get FCPort Page 0 header */
755 hdr.PageVersion = 0;
756 hdr.PageLength = 0;
757 hdr.PageNumber = 0;
758 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
759 cfg.cfghdr.hdr = &hdr;
760 cfg.physAddr = -1;
761 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
762 cfg.dir = 0;
763 cfg.pageAddr = portnum;
764 cfg.timeout = 0;
765
766 if ((rc = mpt_config(ioc, &cfg)) != 0)
767 return rc;
768
769 if (hdr.PageLength == 0)
770 return 0;
771
772 data_sz = hdr.PageLength * 4;
773 rc = -ENOMEM;
774 ppage0_alloc = (FCPortPage0_t *) pci_alloc_consistent(ioc->pcidev, data_sz, &page0_dma);
775 if (ppage0_alloc) {
776
777 try_again:
778 memset((u8 *)ppage0_alloc, 0, data_sz);
779 cfg.physAddr = page0_dma;
780 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
781
782 if ((rc = mpt_config(ioc, &cfg)) == 0) {
783 /* save the data */
784 pp0dest = &ioc->fc_port_page0[portnum];
785 copy_sz = min_t(int, sizeof(FCPortPage0_t), data_sz);
786 memcpy(pp0dest, ppage0_alloc, copy_sz);
787
788 /*
789 * Normalize endianness of structure data,
790 * by byte-swapping all > 1 byte fields!
791 */
792 pp0dest->Flags = le32_to_cpu(pp0dest->Flags);
793 pp0dest->PortIdentifier = le32_to_cpu(pp0dest->PortIdentifier);
794 pp0dest->WWNN.Low = le32_to_cpu(pp0dest->WWNN.Low);
795 pp0dest->WWNN.High = le32_to_cpu(pp0dest->WWNN.High);
796 pp0dest->WWPN.Low = le32_to_cpu(pp0dest->WWPN.Low);
797 pp0dest->WWPN.High = le32_to_cpu(pp0dest->WWPN.High);
798 pp0dest->SupportedServiceClass = le32_to_cpu(pp0dest->SupportedServiceClass);
799 pp0dest->SupportedSpeeds = le32_to_cpu(pp0dest->SupportedSpeeds);
800 pp0dest->CurrentSpeed = le32_to_cpu(pp0dest->CurrentSpeed);
801 pp0dest->MaxFrameSize = le32_to_cpu(pp0dest->MaxFrameSize);
802 pp0dest->FabricWWNN.Low = le32_to_cpu(pp0dest->FabricWWNN.Low);
803 pp0dest->FabricWWNN.High = le32_to_cpu(pp0dest->FabricWWNN.High);
804 pp0dest->FabricWWPN.Low = le32_to_cpu(pp0dest->FabricWWPN.Low);
805 pp0dest->FabricWWPN.High = le32_to_cpu(pp0dest->FabricWWPN.High);
806 pp0dest->DiscoveredPortsCount = le32_to_cpu(pp0dest->DiscoveredPortsCount);
807 pp0dest->MaxInitiators = le32_to_cpu(pp0dest->MaxInitiators);
808
809 /*
810 * if still doing discovery,
811 * hang loose a while until finished
812 */
813 if ((pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) ||
814 (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE &&
815 (pp0dest->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_TYPE_MASK)
816 == MPI_FCPORTPAGE0_FLAGS_ATTACH_NO_INIT)) {
817 if (count-- > 0) {
818 msleep(100);
819 goto try_again;
820 }
821 printk(MYIOC_s_INFO_FMT "Firmware discovery not"
822 " complete.\n",
823 ioc->name);
824 }
825 mptfc_display_port_link_speed(ioc, portnum, pp0dest);
826 }
827
828 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) ppage0_alloc, page0_dma);
829 }
830
831 return rc;
832}
833
834static int
835mptfc_WriteFcPortPage1(MPT_ADAPTER *ioc, int portnum)
836{
837 ConfigPageHeader_t hdr;
838 CONFIGPARMS cfg;
839 int rc;
840
841 if (portnum > 1)
842 return -EINVAL;
843
844 if (!(ioc->fc_data.fc_port_page1[portnum].data))
845 return -EINVAL;
846
847 /* get fcport page 1 header */
848 hdr.PageVersion = 0;
849 hdr.PageLength = 0;
850 hdr.PageNumber = 1;
851 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
852 cfg.cfghdr.hdr = &hdr;
853 cfg.physAddr = -1;
854 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
855 cfg.dir = 0;
856 cfg.pageAddr = portnum;
857 cfg.timeout = 0;
858
859 if ((rc = mpt_config(ioc, &cfg)) != 0)
860 return rc;
861
862 if (hdr.PageLength == 0)
863 return -ENODEV;
864
865 if (hdr.PageLength*4 != ioc->fc_data.fc_port_page1[portnum].pg_sz)
866 return -EINVAL;
867
868 cfg.physAddr = ioc->fc_data.fc_port_page1[portnum].dma;
869 cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT;
870 cfg.dir = 1;
871
872 rc = mpt_config(ioc, &cfg);
873
874 return rc;
875}
876
877static int
878mptfc_GetFcPortPage1(MPT_ADAPTER *ioc, int portnum)
879{
880 ConfigPageHeader_t hdr;
881 CONFIGPARMS cfg;
882 FCPortPage1_t *page1_alloc;
883 dma_addr_t page1_dma;
884 int data_sz;
885 int rc;
886
887 if (portnum > 1)
888 return -EINVAL;
889
890 /* get fcport page 1 header */
891 hdr.PageVersion = 0;
892 hdr.PageLength = 0;
893 hdr.PageNumber = 1;
894 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
895 cfg.cfghdr.hdr = &hdr;
896 cfg.physAddr = -1;
897 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
898 cfg.dir = 0;
899 cfg.pageAddr = portnum;
900 cfg.timeout = 0;
901
902 if ((rc = mpt_config(ioc, &cfg)) != 0)
903 return rc;
904
905 if (hdr.PageLength == 0)
906 return -ENODEV;
907
908start_over:
909
910 if (ioc->fc_data.fc_port_page1[portnum].data == NULL) {
911 data_sz = hdr.PageLength * 4;
912 if (data_sz < sizeof(FCPortPage1_t))
913 data_sz = sizeof(FCPortPage1_t);
914
915 page1_alloc = (FCPortPage1_t *) pci_alloc_consistent(ioc->pcidev,
916 data_sz,
917 &page1_dma);
918 if (!page1_alloc)
919 return -ENOMEM;
920 }
921 else {
922 page1_alloc = ioc->fc_data.fc_port_page1[portnum].data;
923 page1_dma = ioc->fc_data.fc_port_page1[portnum].dma;
924 data_sz = ioc->fc_data.fc_port_page1[portnum].pg_sz;
925 if (hdr.PageLength * 4 > data_sz) {
926 ioc->fc_data.fc_port_page1[portnum].data = NULL;
927 pci_free_consistent(ioc->pcidev, data_sz, (u8 *)
928 page1_alloc, page1_dma);
929 goto start_over;
930 }
931 }
932
933 memset(page1_alloc,0,data_sz);
934
935 cfg.physAddr = page1_dma;
936 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
937
938 if ((rc = mpt_config(ioc, &cfg)) == 0) {
939 ioc->fc_data.fc_port_page1[portnum].data = page1_alloc;
940 ioc->fc_data.fc_port_page1[portnum].pg_sz = data_sz;
941 ioc->fc_data.fc_port_page1[portnum].dma = page1_dma;
942 }
943 else {
944 ioc->fc_data.fc_port_page1[portnum].data = NULL;
945 pci_free_consistent(ioc->pcidev, data_sz, (u8 *)
946 page1_alloc, page1_dma);
947 }
948
949 return rc;
950}
951
952static void
953mptfc_SetFcPortPage1_defaults(MPT_ADAPTER *ioc)
954{
955 int ii;
956 FCPortPage1_t *pp1;
957
958 #define MPTFC_FW_DEVICE_TIMEOUT (1)
959 #define MPTFC_FW_IO_PEND_TIMEOUT (1)
960 #define ON_FLAGS (MPI_FCPORTPAGE1_FLAGS_IMMEDIATE_ERROR_REPLY)
961 #define OFF_FLAGS (MPI_FCPORTPAGE1_FLAGS_VERBOSE_RESCAN_EVENTS)
962
963 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) {
964 if (mptfc_GetFcPortPage1(ioc, ii) != 0)
965 continue;
966 pp1 = ioc->fc_data.fc_port_page1[ii].data;
967 if ((pp1->InitiatorDeviceTimeout == MPTFC_FW_DEVICE_TIMEOUT)
968 && (pp1->InitiatorIoPendTimeout == MPTFC_FW_IO_PEND_TIMEOUT)
969 && ((pp1->Flags & ON_FLAGS) == ON_FLAGS)
970 && ((pp1->Flags & OFF_FLAGS) == 0))
971 continue;
972 pp1->InitiatorDeviceTimeout = MPTFC_FW_DEVICE_TIMEOUT;
973 pp1->InitiatorIoPendTimeout = MPTFC_FW_IO_PEND_TIMEOUT;
974 pp1->Flags &= ~OFF_FLAGS;
975 pp1->Flags |= ON_FLAGS;
976 mptfc_WriteFcPortPage1(ioc, ii);
977 }
978}
979
980
981static void
982mptfc_init_host_attr(MPT_ADAPTER *ioc,int portnum)
983{
984 unsigned class = 0;
985 unsigned cos = 0;
986 unsigned speed;
987 unsigned port_type;
988 unsigned port_state;
989 FCPortPage0_t *pp0;
990 struct Scsi_Host *sh;
991 char *sn;
992
993 /* don't know what to do as only one scsi (fc) host was allocated */
994 if (portnum != 0)
995 return;
996
997 pp0 = &ioc->fc_port_page0[portnum];
998 sh = ioc->sh;
999
1000 sn = fc_host_symbolic_name(sh);
1001 snprintf(sn, FC_SYMBOLIC_NAME_SIZE, "%s %s%08xh",
1002 ioc->prod_name,
1003 MPT_FW_REV_MAGIC_ID_STRING,
1004 ioc->facts.FWVersion.Word);
1005
1006 fc_host_tgtid_bind_type(sh) = FC_TGTID_BIND_BY_WWPN;
1007
1008 fc_host_maxframe_size(sh) = pp0->MaxFrameSize;
1009
1010 fc_host_node_name(sh) =
1011 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low;
1012
1013 fc_host_port_name(sh) =
1014 (u64)pp0->WWPN.High << 32 | (u64)pp0->WWPN.Low;
1015
1016 fc_host_port_id(sh) = pp0->PortIdentifier;
1017
1018 class = pp0->SupportedServiceClass;
1019 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_1)
1020 cos |= FC_COS_CLASS1;
1021 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_2)
1022 cos |= FC_COS_CLASS2;
1023 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_3)
1024 cos |= FC_COS_CLASS3;
1025 fc_host_supported_classes(sh) = cos;
1026
1027 if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT)
1028 speed = FC_PORTSPEED_1GBIT;
1029 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT)
1030 speed = FC_PORTSPEED_2GBIT;
1031 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT)
1032 speed = FC_PORTSPEED_4GBIT;
1033 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_10GBIT)
1034 speed = FC_PORTSPEED_10GBIT;
1035 else
1036 speed = FC_PORTSPEED_UNKNOWN;
1037 fc_host_speed(sh) = speed;
1038
1039 speed = 0;
1040 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_1GBIT_SPEED)
1041 speed |= FC_PORTSPEED_1GBIT;
1042 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_2GBIT_SPEED)
1043 speed |= FC_PORTSPEED_2GBIT;
1044 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_4GBIT_SPEED)
1045 speed |= FC_PORTSPEED_4GBIT;
1046 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_10GBIT_SPEED)
1047 speed |= FC_PORTSPEED_10GBIT;
1048 fc_host_supported_speeds(sh) = speed;
1049
1050 port_state = FC_PORTSTATE_UNKNOWN;
1051 if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE)
1052 port_state = FC_PORTSTATE_ONLINE;
1053 else if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_OFFLINE)
1054 port_state = FC_PORTSTATE_LINKDOWN;
1055 fc_host_port_state(sh) = port_state;
1056
1057 port_type = FC_PORTTYPE_UNKNOWN;
1058 if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_POINT_TO_POINT)
1059 port_type = FC_PORTTYPE_PTP;
1060 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PRIVATE_LOOP)
1061 port_type = FC_PORTTYPE_LPORT;
1062 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PUBLIC_LOOP)
1063 port_type = FC_PORTTYPE_NLPORT;
1064 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_FABRIC_DIRECT)
1065 port_type = FC_PORTTYPE_NPORT;
1066 fc_host_port_type(sh) = port_type;
1067
1068 fc_host_fabric_name(sh) =
1069 (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_FABRIC_WWN_VALID) ?
1070 (u64) pp0->FabricWWNN.High << 32 | (u64) pp0->FabricWWPN.Low :
1071 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low;
1072
1073}
1074
1075static void
1076mptfc_link_status_change(struct work_struct *work)
1077{
1078 MPT_ADAPTER *ioc =
1079 container_of(work, MPT_ADAPTER, fc_rescan_work);
1080 int ii;
1081
1082 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++)
1083 (void) mptfc_GetFcPortPage0(ioc, ii);
1084
1085}
1086
1087static void
1088mptfc_setup_reset(struct work_struct *work)
1089{
1090 MPT_ADAPTER *ioc =
1091 container_of(work, MPT_ADAPTER, fc_setup_reset_work);
1092 u64 pn;
1093 struct mptfc_rport_info *ri;
1094 struct scsi_target *starget;
1095 VirtTarget *vtarget;
1096
1097 /* reset about to happen, delete (block) all rports */
1098 list_for_each_entry(ri, &ioc->fc_rports, list) {
1099 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) {
1100 ri->flags &= ~MPT_RPORT_INFO_FLAGS_REGISTERED;
1101 fc_remote_port_delete(ri->rport); /* won't sleep */
1102 ri->rport = NULL;
1103 starget = ri->starget;
1104 if (starget) {
1105 vtarget = starget->hostdata;
1106 if (vtarget)
1107 vtarget->deleted = 1;
1108 }
1109
1110 pn = (u64)ri->pg0.WWPN.High << 32 |
1111 (u64)ri->pg0.WWPN.Low;
1112 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
1113 "mptfc_setup_reset.%d: %llx deleted\n",
1114 ioc->name,
1115 ioc->sh->host_no,
1116 (unsigned long long)pn));
1117 }
1118 }
1119}
1120
1121static void
1122mptfc_rescan_devices(struct work_struct *work)
1123{
1124 MPT_ADAPTER *ioc =
1125 container_of(work, MPT_ADAPTER, fc_rescan_work);
1126 int ii;
1127 u64 pn;
1128 struct mptfc_rport_info *ri;
1129 struct scsi_target *starget;
1130 VirtTarget *vtarget;
1131
1132 /* start by tagging all ports as missing */
1133 list_for_each_entry(ri, &ioc->fc_rports, list) {
1134 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) {
1135 ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING;
1136 }
1137 }
1138
1139 /*
1140 * now rescan devices known to adapter,
1141 * will reregister existing rports
1142 */
1143 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1144 (void) mptfc_GetFcPortPage0(ioc, ii);
1145 mptfc_init_host_attr(ioc, ii); /* refresh */
1146 mptfc_GetFcDevPage0(ioc, ii, mptfc_register_dev);
1147 }
1148
1149 /* delete devices still missing */
1150 list_for_each_entry(ri, &ioc->fc_rports, list) {
1151 /* if newly missing, delete it */
1152 if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) {
1153
1154 ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED|
1155 MPT_RPORT_INFO_FLAGS_MISSING);
1156 fc_remote_port_delete(ri->rport); /* won't sleep */
1157 ri->rport = NULL;
1158 starget = ri->starget;
1159 if (starget) {
1160 vtarget = starget->hostdata;
1161 if (vtarget)
1162 vtarget->deleted = 1;
1163 }
1164
1165 pn = (u64)ri->pg0.WWPN.High << 32 |
1166 (u64)ri->pg0.WWPN.Low;
1167 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
1168 "mptfc_rescan.%d: %llx deleted\n",
1169 ioc->name,
1170 ioc->sh->host_no,
1171 (unsigned long long)pn));
1172 }
1173 }
1174}
1175
1176static int
1177mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id)
1178{
1179 struct Scsi_Host *sh;
1180 MPT_SCSI_HOST *hd;
1181 MPT_ADAPTER *ioc;
1182 unsigned long flags;
1183 int ii;
1184 int numSGE = 0;
1185 int scale;
1186 int ioc_cap;
1187 int error=0;
1188 int r;
1189
1190 if ((r = mpt_attach(pdev,id)) != 0)
1191 return r;
1192
1193 ioc = pci_get_drvdata(pdev);
1194 ioc->DoneCtx = mptfcDoneCtx;
1195 ioc->TaskCtx = mptfcTaskCtx;
1196 ioc->InternalCtx = mptfcInternalCtx;
1197
1198 /* Added sanity check on readiness of the MPT adapter.
1199 */
1200 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) {
1201 printk(MYIOC_s_WARN_FMT
1202 "Skipping because it's not operational!\n",
1203 ioc->name);
1204 error = -ENODEV;
1205 goto out_mptfc_probe;
1206 }
1207
1208 if (!ioc->active) {
1209 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n",
1210 ioc->name);
1211 error = -ENODEV;
1212 goto out_mptfc_probe;
1213 }
1214
1215 /* Sanity check - ensure at least 1 port is INITIATOR capable
1216 */
1217 ioc_cap = 0;
1218 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1219 if (ioc->pfacts[ii].ProtocolFlags &
1220 MPI_PORTFACTS_PROTOCOL_INITIATOR)
1221 ioc_cap ++;
1222 }
1223
1224 if (!ioc_cap) {
1225 printk(MYIOC_s_WARN_FMT
1226 "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n",
1227 ioc->name, ioc);
1228 return 0;
1229 }
1230
1231 sh = scsi_host_alloc(&mptfc_driver_template, sizeof(MPT_SCSI_HOST));
1232
1233 if (!sh) {
1234 printk(MYIOC_s_WARN_FMT
1235 "Unable to register controller with SCSI subsystem\n",
1236 ioc->name);
1237 error = -1;
1238 goto out_mptfc_probe;
1239 }
1240
1241 spin_lock_init(&ioc->fc_rescan_work_lock);
1242 INIT_WORK(&ioc->fc_rescan_work, mptfc_rescan_devices);
1243 INIT_WORK(&ioc->fc_setup_reset_work, mptfc_setup_reset);
1244 INIT_WORK(&ioc->fc_lsc_work, mptfc_link_status_change);
1245
1246 spin_lock_irqsave(&ioc->FreeQlock, flags);
1247
1248 /* Attach the SCSI Host to the IOC structure
1249 */
1250 ioc->sh = sh;
1251
1252 sh->io_port = 0;
1253 sh->n_io_port = 0;
1254 sh->irq = 0;
1255
1256 /* set 16 byte cdb's */
1257 sh->max_cmd_len = 16;
1258
1259 sh->max_id = ioc->pfacts->MaxDevices;
1260 sh->max_lun = max_lun;
1261
1262 /* Required entry.
1263 */
1264 sh->unique_id = ioc->id;
1265
1266 /* Verify that we won't exceed the maximum
1267 * number of chain buffers
1268 * We can optimize: ZZ = req_sz/sizeof(SGE)
1269 * For 32bit SGE's:
1270 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ
1271 * + (req_sz - 64)/sizeof(SGE)
1272 * A slightly different algorithm is required for
1273 * 64bit SGEs.
1274 */
1275 scale = ioc->req_sz/ioc->SGE_size;
1276 if (ioc->sg_addr_size == sizeof(u64)) {
1277 numSGE = (scale - 1) *
1278 (ioc->facts.MaxChainDepth-1) + scale +
1279 (ioc->req_sz - 60) / ioc->SGE_size;
1280 } else {
1281 numSGE = 1 + (scale - 1) *
1282 (ioc->facts.MaxChainDepth-1) + scale +
1283 (ioc->req_sz - 64) / ioc->SGE_size;
1284 }
1285
1286 if (numSGE < sh->sg_tablesize) {
1287 /* Reset this value */
1288 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1289 "Resetting sg_tablesize to %d from %d\n",
1290 ioc->name, numSGE, sh->sg_tablesize));
1291 sh->sg_tablesize = numSGE;
1292 }
1293
1294 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1295
1296 hd = shost_priv(sh);
1297 hd->ioc = ioc;
1298
1299 /* SCSI needs scsi_cmnd lookup table!
1300 * (with size equal to req_depth*PtrSz!)
1301 */
1302 ioc->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC);
1303 if (!ioc->ScsiLookup) {
1304 error = -ENOMEM;
1305 goto out_mptfc_probe;
1306 }
1307 spin_lock_init(&ioc->scsi_lookup_lock);
1308
1309 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScsiLookup @ %p\n",
1310 ioc->name, ioc->ScsiLookup));
1311
1312 hd->last_queue_full = 0;
1313
1314 sh->transportt = mptfc_transport_template;
1315 error = scsi_add_host (sh, &ioc->pcidev->dev);
1316 if(error) {
1317 dprintk(ioc, printk(MYIOC_s_ERR_FMT
1318 "scsi_add_host failed\n", ioc->name));
1319 goto out_mptfc_probe;
1320 }
1321
1322 /* initialize workqueue */
1323
1324 snprintf(ioc->fc_rescan_work_q_name, sizeof(ioc->fc_rescan_work_q_name),
1325 "mptfc_wq_%d", sh->host_no);
1326 ioc->fc_rescan_work_q =
1327 create_singlethread_workqueue(ioc->fc_rescan_work_q_name);
1328 if (!ioc->fc_rescan_work_q)
1329 goto out_mptfc_probe;
1330
1331 /*
1332 * Pre-fetch FC port WWN and stuff...
1333 * (FCPortPage0_t stuff)
1334 */
1335 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1336 (void) mptfc_GetFcPortPage0(ioc, ii);
1337 }
1338 mptfc_SetFcPortPage1_defaults(ioc);
1339
1340 /*
1341 * scan for rports -
1342 * by doing it via the workqueue, some locking is eliminated
1343 */
1344
1345 queue_work(ioc->fc_rescan_work_q, &ioc->fc_rescan_work);
1346 flush_workqueue(ioc->fc_rescan_work_q);
1347
1348 return 0;
1349
1350out_mptfc_probe:
1351
1352 mptscsih_remove(pdev);
1353 return error;
1354}
1355
1356static struct pci_driver mptfc_driver = {
1357 .name = "mptfc",
1358 .id_table = mptfc_pci_table,
1359 .probe = mptfc_probe,
1360 .remove = mptfc_remove,
1361 .shutdown = mptscsih_shutdown,
1362#ifdef CONFIG_PM
1363 .suspend = mptscsih_suspend,
1364 .resume = mptscsih_resume,
1365#endif
1366};
1367
1368static int
1369mptfc_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
1370{
1371 MPT_SCSI_HOST *hd;
1372 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
1373 unsigned long flags;
1374 int rc=1;
1375
1376 if (ioc->bus_type != FC)
1377 return 0;
1378
1379 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n",
1380 ioc->name, event));
1381
1382 if (ioc->sh == NULL ||
1383 ((hd = shost_priv(ioc->sh)) == NULL))
1384 return 1;
1385
1386 switch (event) {
1387 case MPI_EVENT_RESCAN:
1388 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1389 if (ioc->fc_rescan_work_q) {
1390 queue_work(ioc->fc_rescan_work_q,
1391 &ioc->fc_rescan_work);
1392 }
1393 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1394 break;
1395 case MPI_EVENT_LINK_STATUS_CHANGE:
1396 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1397 if (ioc->fc_rescan_work_q) {
1398 queue_work(ioc->fc_rescan_work_q,
1399 &ioc->fc_lsc_work);
1400 }
1401 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1402 break;
1403 default:
1404 rc = mptscsih_event_process(ioc,pEvReply);
1405 break;
1406 }
1407 return rc;
1408}
1409
1410static int
1411mptfc_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
1412{
1413 int rc;
1414 unsigned long flags;
1415
1416 rc = mptscsih_ioc_reset(ioc,reset_phase);
1417 if ((ioc->bus_type != FC) || (!rc))
1418 return rc;
1419
1420
1421 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1422 ": IOC %s_reset routed to FC host driver!\n",ioc->name,
1423 reset_phase==MPT_IOC_SETUP_RESET ? "setup" : (
1424 reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post")));
1425
1426 if (reset_phase == MPT_IOC_SETUP_RESET) {
1427 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1428 if (ioc->fc_rescan_work_q) {
1429 queue_work(ioc->fc_rescan_work_q,
1430 &ioc->fc_setup_reset_work);
1431 }
1432 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1433 }
1434
1435 else if (reset_phase == MPT_IOC_PRE_RESET) {
1436 }
1437
1438 else { /* MPT_IOC_POST_RESET */
1439 mptfc_SetFcPortPage1_defaults(ioc);
1440 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1441 if (ioc->fc_rescan_work_q) {
1442 queue_work(ioc->fc_rescan_work_q,
1443 &ioc->fc_rescan_work);
1444 }
1445 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1446 }
1447 return 1;
1448}
1449
1450/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1451/**
1452 * mptfc_init - Register MPT adapter(s) as SCSI host(s) with SCSI mid-layer.
1453 *
1454 * Returns 0 for success, non-zero for failure.
1455 */
1456static int __init
1457mptfc_init(void)
1458{
1459 int error;
1460
1461 show_mptmod_ver(my_NAME, my_VERSION);
1462
1463 /* sanity check module parameters */
1464 if (mptfc_dev_loss_tmo <= 0)
1465 mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO;
1466
1467 mptfc_transport_template =
1468 fc_attach_transport(&mptfc_transport_functions);
1469
1470 if (!mptfc_transport_template)
1471 return -ENODEV;
1472
1473 mptfcDoneCtx = mpt_register(mptscsih_io_done, MPTFC_DRIVER,
1474 "mptscsih_scandv_complete");
1475 mptfcTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTFC_DRIVER,
1476 "mptscsih_scandv_complete");
1477 mptfcInternalCtx = mpt_register(mptscsih_scandv_complete, MPTFC_DRIVER,
1478 "mptscsih_scandv_complete");
1479
1480 mpt_event_register(mptfcDoneCtx, mptfc_event_process);
1481 mpt_reset_register(mptfcDoneCtx, mptfc_ioc_reset);
1482
1483 error = pci_register_driver(&mptfc_driver);
1484 if (error)
1485 fc_release_transport(mptfc_transport_template);
1486
1487 return error;
1488}
1489
1490/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1491/**
1492 * mptfc_remove - Remove fc infrastructure for devices
1493 * @pdev: Pointer to pci_dev structure
1494 *
1495 */
1496static void mptfc_remove(struct pci_dev *pdev)
1497{
1498 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1499 struct mptfc_rport_info *p, *n;
1500 struct workqueue_struct *work_q;
1501 unsigned long flags;
1502 int ii;
1503
1504 /* destroy workqueue */
1505 if ((work_q=ioc->fc_rescan_work_q)) {
1506 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1507 ioc->fc_rescan_work_q = NULL;
1508 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1509 destroy_workqueue(work_q);
1510 }
1511
1512 fc_remove_host(ioc->sh);
1513
1514 list_for_each_entry_safe(p, n, &ioc->fc_rports, list) {
1515 list_del(&p->list);
1516 kfree(p);
1517 }
1518
1519 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) {
1520 if (ioc->fc_data.fc_port_page1[ii].data) {
1521 pci_free_consistent(ioc->pcidev,
1522 ioc->fc_data.fc_port_page1[ii].pg_sz,
1523 (u8 *) ioc->fc_data.fc_port_page1[ii].data,
1524 ioc->fc_data.fc_port_page1[ii].dma);
1525 ioc->fc_data.fc_port_page1[ii].data = NULL;
1526 }
1527 }
1528
1529 mptscsih_remove(pdev);
1530}
1531
1532/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1533/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1534/**
1535 * mptfc_exit - Unregisters MPT adapter(s)
1536 *
1537 */
1538static void __exit
1539mptfc_exit(void)
1540{
1541 pci_unregister_driver(&mptfc_driver);
1542 fc_release_transport(mptfc_transport_template);
1543
1544 mpt_reset_deregister(mptfcDoneCtx);
1545 mpt_event_deregister(mptfcDoneCtx);
1546
1547 mpt_deregister(mptfcInternalCtx);
1548 mpt_deregister(mptfcTaskCtx);
1549 mpt_deregister(mptfcDoneCtx);
1550}
1551
1552module_init(mptfc_init);
1553module_exit(mptfc_exit);