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[SCSI] mptfc: set fibre channel fw target missing timers to one second
[deliverable/linux.git] / drivers / message / fusion / mptfc.c
CommitLineData
2496af39
MED		 1/*
2 * linux/drivers/message/fusion/mptfc.c
3 * For use with LSI Logic PCI chip/adapter(s)
4 * running LSI Logic Fusion MPT (Message Passing Technology) firmware.
5 *
6 * Copyright (c) 1999-2005 LSI Logic Corporation
7 * (mailto:mpt_linux_developer@lsil.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_compat.h" /* linux-2.6 tweaks */
47#include <linux/module.h>
48#include <linux/kernel.h>
49#include <linux/init.h>
50#include <linux/errno.h>
51#include <linux/kdev_t.h>
52#include <linux/blkdev.h>
53#include <linux/delay.h> /* for mdelay */
54#include <linux/interrupt.h> /* needed for in_interrupt() proto */
55#include <linux/reboot.h> /* notifier code */
56#include <linux/sched.h>
57#include <linux/workqueue.h>
05e8ec17 58#include <linux/sort.h>
2496af39
MED		 59
60#include <scsi/scsi.h>
61#include <scsi/scsi_cmnd.h>
62#include <scsi/scsi_device.h>
63#include <scsi/scsi_host.h>
64#include <scsi/scsi_tcq.h>
05e8ec17 65#include <scsi/scsi_transport_fc.h>
2496af39
MED		 66
67#include "mptbase.h"
68#include "mptscsih.h"
69
70/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
71#define my_NAME "Fusion MPT FC Host driver"
72#define my_VERSION MPT_LINUX_VERSION_COMMON
73#define MYNAM "mptfc"
74
75MODULE_AUTHOR(MODULEAUTHOR);
76MODULE_DESCRIPTION(my_NAME);
77MODULE_LICENSE("GPL");
78
79/* Command line args */
80static int mpt_pq_filter = 0;
81module_param(mpt_pq_filter, int, 0);
82MODULE_PARM_DESC(mpt_pq_filter, " Enable peripheral qualifier filter: enable=1 (default=0)");
83
05e8ec17
MR		 84#define MPTFC_DEV_LOSS_TMO (60)
85static int mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO; /* reasonable default */
86module_param(mptfc_dev_loss_tmo, int, 0);
87MODULE_PARM_DESC(mptfc_dev_loss_tmo, " Initial time the driver programs the "
88 " transport to wait for an rport to "
89 " return following a device loss event."
90 " Default=60.");
91
2496af39
MED		 92static int mptfcDoneCtx = -1;
93static int mptfcTaskCtx = -1;
94static int mptfcInternalCtx = -1; /* Used only for internal commands */
95
3bc7bf1d
MR		 96static int mptfc_target_alloc(struct scsi_target *starget);
97static int mptfc_slave_alloc(struct scsi_device *sdev);
05e8ec17 98static int mptfc_qcmd(struct scsi_cmnd *SCpnt,
3bc7bf1d
MR		 99 void (*done)(struct scsi_cmnd *));
100static void mptfc_target_destroy(struct scsi_target *starget);
05e8ec17
MR		 101static void mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout);
102static void __devexit mptfc_remove(struct pci_dev *pdev);
103
2496af39 104static struct scsi_host_template mptfc_driver_template = {
f78496da 105 .module = THIS_MODULE,
2496af39
MED		 106 .proc_name = "mptfc",
107 .proc_info = mptscsih_proc_info,
108 .name = "MPT FC Host",
109 .info = mptscsih_info,
05e8ec17 110 .queuecommand = mptfc_qcmd,
3bc7bf1d 111 .target_alloc = mptfc_target_alloc,
05e8ec17 112 .slave_alloc = mptfc_slave_alloc,
2496af39 113 .slave_configure = mptscsih_slave_configure,
3bc7bf1d 114 .target_destroy = mptfc_target_destroy,
2496af39 115 .slave_destroy = mptscsih_slave_destroy,
6e3815ba 116 .change_queue_depth = mptscsih_change_queue_depth,
2496af39
MED		 117 .eh_abort_handler = mptscsih_abort,
118 .eh_device_reset_handler = mptscsih_dev_reset,
119 .eh_bus_reset_handler = mptscsih_bus_reset,
120 .eh_host_reset_handler = mptscsih_host_reset,
121 .bios_param = mptscsih_bios_param,
122 .can_queue = MPT_FC_CAN_QUEUE,
123 .this_id = -1,
124 .sg_tablesize = MPT_SCSI_SG_DEPTH,
125 .max_sectors = 8192,
126 .cmd_per_lun = 7,
127 .use_clustering = ENABLE_CLUSTERING,
2496af39
MED		 128};
129
130/****************************************************************************
131 * Supported hardware
132 */
133
134static struct pci_device_id mptfc_pci_table[] = {
135 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC909,
136 PCI_ANY_ID, PCI_ANY_ID },
137 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC919,
138 PCI_ANY_ID, PCI_ANY_ID },
139 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC929,
140 PCI_ANY_ID, PCI_ANY_ID },
141 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC919X,
142 PCI_ANY_ID, PCI_ANY_ID },
143 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC929X,
144 PCI_ANY_ID, PCI_ANY_ID },
3fadc59d
MED		 145 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC939X,
146 PCI_ANY_ID, PCI_ANY_ID },
147 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC949X,
148 PCI_ANY_ID, PCI_ANY_ID },
6d5b0c31
ME		 149 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC949ES,
150 PCI_ANY_ID, PCI_ANY_ID },
2496af39
MED		 151 {0} /* Terminating entry */
152};
153MODULE_DEVICE_TABLE(pci, mptfc_pci_table);
154
05e8ec17
MR		 155static struct scsi_transport_template *mptfc_transport_template = NULL;
156
03fbcbcd 157static struct fc_function_template mptfc_transport_functions = {
05e8ec17
MR		 158 .dd_fcrport_size = 8,
159 .show_host_node_name = 1,
160 .show_host_port_name = 1,
161 .show_host_supported_classes = 1,
162 .show_host_port_id = 1,
163 .show_rport_supported_classes = 1,
164 .show_starget_node_name = 1,
165 .show_starget_port_name = 1,
166 .show_starget_port_id = 1,
167 .set_rport_dev_loss_tmo = mptfc_set_rport_loss_tmo,
168 .show_rport_dev_loss_tmo = 1,
169
170};
171
05e8ec17
MR		 172static void
173mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
174{
175 if (timeout > 0)
176 rport->dev_loss_tmo = timeout;
177 else
178 rport->dev_loss_tmo = mptfc_dev_loss_tmo;
179}
180
181static int
182mptfc_FcDevPage0_cmp_func(const void *a, const void *b)
183{
184 FCDevicePage0_t **aa = (FCDevicePage0_t **)a;
185 FCDevicePage0_t **bb = (FCDevicePage0_t **)b;
186
187 if ((*aa)->CurrentBus == (*bb)->CurrentBus) {
188 if ((*aa)->CurrentTargetID == (*bb)->CurrentTargetID)
189 return 0;
190 if ((*aa)->CurrentTargetID < (*bb)->CurrentTargetID)
191 return -1;
192 return 1;
193 }
194 if ((*aa)->CurrentBus < (*bb)->CurrentBus)
195 return -1;
196 return 1;
197}
198
199static int
200mptfc_GetFcDevPage0(MPT_ADAPTER *ioc, int ioc_port,
201 void(*func)(MPT_ADAPTER *ioc,int channel, FCDevicePage0_t *arg))
202{
203 ConfigPageHeader_t hdr;
204 CONFIGPARMS cfg;
205 FCDevicePage0_t *ppage0_alloc, *fc;
206 dma_addr_t page0_dma;
207 int data_sz;
208 int ii;
209
210 FCDevicePage0_t *p0_array=NULL, *p_p0;
211 FCDevicePage0_t **pp0_array=NULL, **p_pp0;
212
213 int rc = -ENOMEM;
214 U32 port_id = 0xffffff;
215 int num_targ = 0;
216 int max_bus = ioc->facts.MaxBuses;
217 int max_targ = ioc->facts.MaxDevices;
218
219 if (max_bus == 0 || max_targ == 0)
220 goto out;
221
222 data_sz = sizeof(FCDevicePage0_t) * max_bus * max_targ;
223 p_p0 = p0_array = kzalloc(data_sz, GFP_KERNEL);
224 if (!p0_array)
225 goto out;
226
227 data_sz = sizeof(FCDevicePage0_t *) * max_bus * max_targ;
228 p_pp0 = pp0_array = kzalloc(data_sz, GFP_KERNEL);
229 if (!pp0_array)
230 goto out;
231
232 do {
233 /* Get FC Device Page 0 header */
234 hdr.PageVersion = 0;
235 hdr.PageLength = 0;
236 hdr.PageNumber = 0;
237 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_DEVICE;
238 cfg.cfghdr.hdr = &hdr;
239 cfg.physAddr = -1;
240 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
241 cfg.dir = 0;
242 cfg.pageAddr = port_id;
243 cfg.timeout = 0;
244
245 if ((rc = mpt_config(ioc, &cfg)) != 0)
246 break;
247
248 if (hdr.PageLength <= 0)
249 break;
250
251 data_sz = hdr.PageLength * 4;
252 ppage0_alloc = pci_alloc_consistent(ioc->pcidev, data_sz,
253 &page0_dma);
254 rc = -ENOMEM;
255 if (!ppage0_alloc)
256 break;
257
258 cfg.physAddr = page0_dma;
259 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
260
261 if ((rc = mpt_config(ioc, &cfg)) == 0) {
262 ppage0_alloc->PortIdentifier =
263 le32_to_cpu(ppage0_alloc->PortIdentifier);
264
265 ppage0_alloc->WWNN.Low =
266 le32_to_cpu(ppage0_alloc->WWNN.Low);
267
268 ppage0_alloc->WWNN.High =
269 le32_to_cpu(ppage0_alloc->WWNN.High);
270
271 ppage0_alloc->WWPN.Low =
272 le32_to_cpu(ppage0_alloc->WWPN.Low);
273
274 ppage0_alloc->WWPN.High =
275 le32_to_cpu(ppage0_alloc->WWPN.High);
276
277 ppage0_alloc->BBCredit =
278 le16_to_cpu(ppage0_alloc->BBCredit);
279
280 ppage0_alloc->MaxRxFrameSize =
281 le16_to_cpu(ppage0_alloc->MaxRxFrameSize);
282
283 port_id = ppage0_alloc->PortIdentifier;
284 num_targ++;
285 *p_p0 = *ppage0_alloc; /* save data */
286 *p_pp0++ = p_p0++; /* save addr */
287 }
288 pci_free_consistent(ioc->pcidev, data_sz,
289 (u8 *) ppage0_alloc, page0_dma);
290 if (rc != 0)
291 break;
292
293 } while (port_id <= 0xff0000);
294
295 if (num_targ) {
296 /* sort array */
297 if (num_targ > 1)
298 sort (pp0_array, num_targ, sizeof(FCDevicePage0_t *),
299 mptfc_FcDevPage0_cmp_func, NULL);
300 /* call caller's func for each targ */
301 for (ii = 0; ii < num_targ; ii++) {
302 fc = *(pp0_array+ii);
303 func(ioc, ioc_port, fc);
304 }
305 }
306
307 out:
308 if (pp0_array)
309 kfree(pp0_array);
310 if (p0_array)
311 kfree(p0_array);
312 return rc;
313}
314
315static int
316mptfc_generate_rport_ids(FCDevicePage0_t *pg0, struct fc_rport_identifiers *rid)
317{
318 /* not currently usable */
319 if (pg0->Flags & (MPI_FC_DEVICE_PAGE0_FLAGS_PLOGI_INVALID |
320 MPI_FC_DEVICE_PAGE0_FLAGS_PRLI_INVALID))
321 return -1;
322
323 if (!(pg0->Flags & MPI_FC_DEVICE_PAGE0_FLAGS_TARGETID_BUS_VALID))
324 return -1;
325
326 if (!(pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_TARGET))
327 return -1;
328
329 /*
330 * board data structure already normalized to platform endianness
331 * shifted to avoid unaligned access on 64 bit architecture
332 */
333 rid->node_name = ((u64)pg0->WWNN.High) << 32 | (u64)pg0->WWNN.Low;
334 rid->port_name = ((u64)pg0->WWPN.High) << 32 | (u64)pg0->WWPN.Low;
335 rid->port_id = pg0->PortIdentifier;
336 rid->roles = FC_RPORT_ROLE_UNKNOWN;
05e8ec17
MR		 337
338 return 0;
339}
340
341static void
342mptfc_register_dev(MPT_ADAPTER *ioc, int channel, FCDevicePage0_t *pg0)
343{
344 struct fc_rport_identifiers rport_ids;
345 struct fc_rport *rport;
346 struct mptfc_rport_info *ri;
3bc7bf1d 347 int new_ri = 1;
65207fed 348 u64 pn, nn;
3bc7bf1d 349 VirtTarget *vtarget;
6dd727da 350 u32 roles = FC_RPORT_ROLE_UNKNOWN;
05e8ec17
MR		 351
352 if (mptfc_generate_rport_ids(pg0, &rport_ids) < 0)
353 return;
354
6dd727da 355 roles |= FC_RPORT_ROLE_FCP_TARGET;
356 if (pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_INITIATOR)
357 roles |= FC_RPORT_ROLE_FCP_INITIATOR;
358
05e8ec17 359 /* scan list looking for a match */
05e8ec17 360 list_for_each_entry(ri, &ioc->fc_rports, list) {
3bc7bf1d
MR		 361 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
362 if (pn == rport_ids.port_name) { /* match */
05e8ec17 363 list_move_tail(&ri->list, &ioc->fc_rports);
3bc7bf1d 364 new_ri = 0;
05e8ec17
MR		 365 break;
366 }
367 }
3bc7bf1d 368 if (new_ri) { /* allocate one */
05e8ec17
MR		 369 ri = kzalloc(sizeof(struct mptfc_rport_info), GFP_KERNEL);
370 if (!ri)
371 return;
05e8ec17
MR		 372 list_add_tail(&ri->list, &ioc->fc_rports);
373 }
374
375 ri->pg0 = *pg0; /* add/update pg0 data */
376 ri->flags &= ~MPT_RPORT_INFO_FLAGS_MISSING;
377
3bc7bf1d 378 /* MPT_RPORT_INFO_FLAGS_REGISTERED - rport not previously deleted */
05e8ec17
MR		 379 if (!(ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED)) {
380 ri->flags |= MPT_RPORT_INFO_FLAGS_REGISTERED;
3bc7bf1d 381 rport = fc_remote_port_add(ioc->sh, channel, &rport_ids);
05e8ec17 382 if (rport) {
3bc7bf1d
MR		 383 ri->rport = rport;
384 if (new_ri) /* may have been reset by user */
385 rport->dev_loss_tmo = mptfc_dev_loss_tmo;
05e8ec17
MR		 386 /*
387 * if already mapped, remap here. If not mapped,
3bc7bf1d
MR		 388 * target_alloc will allocate vtarget and map,
389 * slave_alloc will fill in vdev from vtarget.
05e8ec17 390 */
3bc7bf1d
MR		 391 if (ri->starget) {
392 vtarget = ri->starget->hostdata;
393 if (vtarget) {
394 vtarget->target_id = pg0->CurrentTargetID;
395 vtarget->bus_id = pg0->CurrentBus;
3bc7bf1d 396 }
05e8ec17 397 }
65207fed 398 *((struct mptfc_rport_info **)rport->dd_data) = ri;
6dd727da 399 /* scan will be scheduled once rport becomes a target */
400 fc_remote_port_rolechg(rport,roles);
65207fed
ME		 401
402 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
403 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low;
3bc7bf1d
MR		 404 dfcprintk ((MYIOC_s_INFO_FMT
405 "mptfc_reg_dev.%d: %x, %llx / %llx, tid %d, "
05e8ec17 406 "rport tid %d, tmo %d\n",
3bc7bf1d 407 ioc->name,
914c2d8e 408 ioc->sh->host_no,
05e8ec17 409 pg0->PortIdentifier,
65207fed
ME		 410 (unsigned long long)nn,
411 (unsigned long long)pn,
05e8ec17
MR		 412 pg0->CurrentTargetID,
413 ri->rport->scsi_target_id,
3bc7bf1d 414 ri->rport->dev_loss_tmo));
05e8ec17
MR		 415 } else {
416 list_del(&ri->list);
417 kfree(ri);
418 ri = NULL;
419 }
420 }
05e8ec17
MR		 421}
422
3bc7bf1d
MR		 423/*
424 * OS entry point to allow for host driver to free allocated memory
425 * Called if no device present or device being unloaded
426 */
427static void
428mptfc_target_destroy(struct scsi_target *starget)
429{
430 struct fc_rport *rport;
431 struct mptfc_rport_info *ri;
432
433 rport = starget_to_rport(starget);
434 if (rport) {
435 ri = *((struct mptfc_rport_info **)rport->dd_data);
436 if (ri) /* better be! */
437 ri->starget = NULL;
438 }
439 if (starget->hostdata)
440 kfree(starget->hostdata);
441 starget->hostdata = NULL;
442}
443
444/*
445 * OS entry point to allow host driver to alloc memory
446 * for each scsi target. Called once per device the bus scan.
447 * Return non-zero if allocation fails.
448 */
449static int
450mptfc_target_alloc(struct scsi_target *starget)
451{
452 VirtTarget *vtarget;
453 struct fc_rport *rport;
454 struct mptfc_rport_info *ri;
455 int rc;
456
457 vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL);
458 if (!vtarget)
459 return -ENOMEM;
460 starget->hostdata = vtarget;
461
462 rc = -ENODEV;
463 rport = starget_to_rport(starget);
464 if (rport) {
465 ri = *((struct mptfc_rport_info **)rport->dd_data);
466 if (ri) { /* better be! */
467 vtarget->target_id = ri->pg0.CurrentTargetID;
468 vtarget->bus_id = ri->pg0.CurrentBus;
469 ri->starget = starget;
3bc7bf1d
MR		 470 rc = 0;
471 }
472 }
473 if (rc != 0) {
474 kfree(vtarget);
475 starget->hostdata = NULL;
476 }
477
478 return rc;
479}
480
2496af39 481/*
05e8ec17
MR		 482 * OS entry point to allow host driver to alloc memory
483 * for each scsi device. Called once per device the bus scan.
484 * Return non-zero if allocation fails.
485 * Init memory once per LUN.
2496af39 486 */
03fbcbcd 487static int
05e8ec17
MR		 488mptfc_slave_alloc(struct scsi_device *sdev)
489{
490 MPT_SCSI_HOST *hd;
491 VirtTarget *vtarget;
492 VirtDevice *vdev;
493 struct scsi_target *starget;
494 struct fc_rport *rport;
05e8ec17
MR		 495
496
65207fed
ME		 497 starget = scsi_target(sdev);
498 rport = starget_to_rport(starget);
05e8ec17
MR		 499
500 if (!rport || fc_remote_port_chkready(rport))
501 return -ENXIO;
502
503 hd = (MPT_SCSI_HOST *)sdev->host->hostdata;
504
3bc7bf1d 505 vdev = kzalloc(sizeof(VirtDevice), GFP_KERNEL);
05e8ec17
MR		 506 if (!vdev) {
507 printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n",
508 hd->ioc->name, sizeof(VirtDevice));
509 return -ENOMEM;
510 }
05e8ec17 511
05e8ec17 512
05e8ec17 513 sdev->hostdata = vdev;
05e8ec17 514 vtarget = starget->hostdata;
3bc7bf1d 515
05e8ec17 516 if (vtarget->num_luns == 0) {
3bc7bf1d 517 vtarget->ioc_id = hd->ioc->id;
05e8ec17
MR		 518 vtarget->tflags = MPT_TARGET_FLAGS_Q_YES |
519 MPT_TARGET_FLAGS_VALID_INQUIRY;
520 hd->Targets[sdev->id] = vtarget;
521 }
522
05e8ec17 523 vdev->vtarget = vtarget;
05e8ec17 524 vdev->lun = sdev->lun;
05e8ec17 525
05e8ec17
MR		 526 vtarget->num_luns++;
527
65207fed 528
914c2d8e 529#ifdef DMPT_DEBUG_FC
65207fed
ME		 530 {
531 u64 nn, pn;
914c2d8e
ME		 532 struct mptfc_rport_info *ri;
533 ri = *((struct mptfc_rport_info **)rport->dd_data);
65207fed
ME		 534 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
535 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low;
3bc7bf1d
MR		 536 dfcprintk ((MYIOC_s_INFO_FMT
537 "mptfc_slv_alloc.%d: num_luns %d, sdev.id %d, "
05e8ec17 538 "CurrentTargetID %d, %x %llx %llx\n",
914c2d8e 539 hd->ioc->name,
3bc7bf1d
MR		 540 sdev->host->host_no,
541 vtarget->num_luns,
542 sdev->id, ri->pg0.CurrentTargetID,
65207fed
ME		 543 ri->pg0.PortIdentifier,
544 (unsigned long long)pn,
545 (unsigned long long)nn));
914c2d8e
ME		 546 }
547#endif
05e8ec17
MR		 548
549 return 0;
550}
551
552static int
553mptfc_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
554{
3bc7bf1d 555 struct mptfc_rport_info *ri;
05e8ec17
MR		 556 struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device));
557 int err;
558
559 err = fc_remote_port_chkready(rport);
560 if (unlikely(err)) {
561 SCpnt->result = err;
562 done(SCpnt);
563 return 0;
564 }
65207fed
ME		 565
566 /* dd_data is null until finished adding target */
3bc7bf1d 567 ri = *((struct mptfc_rport_info **)rport->dd_data);
65207fed
ME		 568 if (unlikely(!ri)) {
569 dfcprintk ((MYIOC_s_INFO_FMT
570 "mptfc_qcmd.%d: %d:%d, dd_data is null.\n",
571 ((MPT_SCSI_HOST *) SCpnt->device->host->hostdata)->ioc->name,
572 ((MPT_SCSI_HOST *) SCpnt->device->host->hostdata)->ioc->sh->host_no,
573 SCpnt->device->id,SCpnt->device->lun));
574 SCpnt->result = DID_IMM_RETRY << 16;
575 done(SCpnt);
576 return 0;
577 }
3bc7bf1d 578
65207fed
ME		 579 err = mptscsih_qcmd(SCpnt,done);
580#ifdef DMPT_DEBUG_FC
581 if (unlikely(err)) {
582 dfcprintk ((MYIOC_s_INFO_FMT
583 "mptfc_qcmd.%d: %d:%d, mptscsih_qcmd returns non-zero.\n",
584 ((MPT_SCSI_HOST *) SCpnt->device->host->hostdata)->ioc->name,
585 ((MPT_SCSI_HOST *) SCpnt->device->host->hostdata)->ioc->sh->host_no,
586 SCpnt->device->id,SCpnt->device->lun));
587 }
588#endif
589 return err;
05e8ec17
MR		 590}
591
80d3ac77
MR		 592/*
593 * mptfc_GetFcPortPage0 - Fetch FCPort config Page0.
594 * @ioc: Pointer to MPT_ADAPTER structure
595 * @portnum: IOC Port number
596 *
597 * Return: 0 for success
598 * -ENOMEM if no memory available
599 * -EPERM if not allowed due to ISR context
600 * -EAGAIN if no msg frames currently available
601 * -EFAULT for non-successful reply or no reply (timeout)
602 * -EINVAL portnum arg out of range (hardwired to two elements)
603 */
604static int
605mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum)
606{
607 ConfigPageHeader_t hdr;
608 CONFIGPARMS cfg;
609 FCPortPage0_t *ppage0_alloc;
610 FCPortPage0_t *pp0dest;
611 dma_addr_t page0_dma;
612 int data_sz;
613 int copy_sz;
614 int rc;
615 int count = 400;
616
617 if (portnum > 1)
618 return -EINVAL;
619
620 /* Get FCPort Page 0 header */
621 hdr.PageVersion = 0;
622 hdr.PageLength = 0;
623 hdr.PageNumber = 0;
624 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
625 cfg.cfghdr.hdr = &hdr;
626 cfg.physAddr = -1;
627 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
628 cfg.dir = 0;
629 cfg.pageAddr = portnum;
630 cfg.timeout = 0;
631
632 if ((rc = mpt_config(ioc, &cfg)) != 0)
633 return rc;
634
635 if (hdr.PageLength == 0)
636 return 0;
637
638 data_sz = hdr.PageLength * 4;
639 rc = -ENOMEM;
640 ppage0_alloc = (FCPortPage0_t *) pci_alloc_consistent(ioc->pcidev, data_sz, &page0_dma);
641 if (ppage0_alloc) {
642
643 try_again:
644 memset((u8 *)ppage0_alloc, 0, data_sz);
645 cfg.physAddr = page0_dma;
646 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
647
648 if ((rc = mpt_config(ioc, &cfg)) == 0) {
649 /* save the data */
650 pp0dest = &ioc->fc_port_page0[portnum];
651 copy_sz = min_t(int, sizeof(FCPortPage0_t), data_sz);
652 memcpy(pp0dest, ppage0_alloc, copy_sz);
653
654 /*
655 * Normalize endianness of structure data,
656 * by byte-swapping all > 1 byte fields!
657 */
658 pp0dest->Flags = le32_to_cpu(pp0dest->Flags);
659 pp0dest->PortIdentifier = le32_to_cpu(pp0dest->PortIdentifier);
660 pp0dest->WWNN.Low = le32_to_cpu(pp0dest->WWNN.Low);
661 pp0dest->WWNN.High = le32_to_cpu(pp0dest->WWNN.High);
662 pp0dest->WWPN.Low = le32_to_cpu(pp0dest->WWPN.Low);
663 pp0dest->WWPN.High = le32_to_cpu(pp0dest->WWPN.High);
664 pp0dest->SupportedServiceClass = le32_to_cpu(pp0dest->SupportedServiceClass);
665 pp0dest->SupportedSpeeds = le32_to_cpu(pp0dest->SupportedSpeeds);
666 pp0dest->CurrentSpeed = le32_to_cpu(pp0dest->CurrentSpeed);
667 pp0dest->MaxFrameSize = le32_to_cpu(pp0dest->MaxFrameSize);
668 pp0dest->FabricWWNN.Low = le32_to_cpu(pp0dest->FabricWWNN.Low);
669 pp0dest->FabricWWNN.High = le32_to_cpu(pp0dest->FabricWWNN.High);
670 pp0dest->FabricWWPN.Low = le32_to_cpu(pp0dest->FabricWWPN.Low);
671 pp0dest->FabricWWPN.High = le32_to_cpu(pp0dest->FabricWWPN.High);
672 pp0dest->DiscoveredPortsCount = le32_to_cpu(pp0dest->DiscoveredPortsCount);
673 pp0dest->MaxInitiators = le32_to_cpu(pp0dest->MaxInitiators);
674
675 /*
676 * if still doing discovery,
677 * hang loose a while until finished
678 */
679 if (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) {
680 if (count-- > 0) {
681 msleep_interruptible(100);
682 goto try_again;
683 }
684 printk(MYIOC_s_INFO_FMT "Firmware discovery not"
685 " complete.\n",
686 ioc->name);
687 }
688 }
689
690 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) ppage0_alloc, page0_dma);
691 }
692
693 return rc;
694}
695
ca2f938e
MR		 696static int
697mptfc_WriteFcPortPage1(MPT_ADAPTER *ioc, int portnum)
698{
699 ConfigPageHeader_t hdr;
700 CONFIGPARMS cfg;
701 int rc;
702
703 if (portnum > 1)
704 return -EINVAL;
705
706 if (!(ioc->fc_data.fc_port_page1[portnum].data))
707 return -EINVAL;
708
709 /* get fcport page 1 header */
710 hdr.PageVersion = 0;
711 hdr.PageLength = 0;
712 hdr.PageNumber = 1;
713 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
714 cfg.cfghdr.hdr = &hdr;
715 cfg.physAddr = -1;
716 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
717 cfg.dir = 0;
718 cfg.pageAddr = portnum;
719 cfg.timeout = 0;
720
721 if ((rc = mpt_config(ioc, &cfg)) != 0)
722 return rc;
723
724 if (hdr.PageLength == 0)
725 return -ENODEV;
726
727 if (hdr.PageLength*4 != ioc->fc_data.fc_port_page1[portnum].pg_sz)
728 return -EINVAL;
729
730 cfg.physAddr = ioc->fc_data.fc_port_page1[portnum].dma;
731 cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT;
732 cfg.dir = 1;
733
734 rc = mpt_config(ioc, &cfg);
735
736 return rc;
737}
738
739static int
740mptfc_GetFcPortPage1(MPT_ADAPTER *ioc, int portnum)
741{
742 ConfigPageHeader_t hdr;
743 CONFIGPARMS cfg;
744 FCPortPage1_t *page1_alloc;
745 dma_addr_t page1_dma;
746 int data_sz;
747 int rc;
748
749 if (portnum > 1)
750 return -EINVAL;
751
752 /* get fcport page 1 header */
753 hdr.PageVersion = 0;
754 hdr.PageLength = 0;
755 hdr.PageNumber = 1;
756 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
757 cfg.cfghdr.hdr = &hdr;
758 cfg.physAddr = -1;
759 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
760 cfg.dir = 0;
761 cfg.pageAddr = portnum;
762 cfg.timeout = 0;
763
764 if ((rc = mpt_config(ioc, &cfg)) != 0)
765 return rc;
766
767 if (hdr.PageLength == 0)
768 return -ENODEV;
769
770start_over:
771
772 if (ioc->fc_data.fc_port_page1[portnum].data == NULL) {
773 data_sz = hdr.PageLength * 4;
774 if (data_sz < sizeof(FCPortPage1_t))
775 data_sz = sizeof(FCPortPage1_t);
776
777 page1_alloc = (FCPortPage1_t *) pci_alloc_consistent(ioc->pcidev,
778 data_sz,
779 &page1_dma);
780 if (!page1_alloc)
781 return -ENOMEM;
782 }
783 else {
784 page1_alloc = ioc->fc_data.fc_port_page1[portnum].data;
785 page1_dma = ioc->fc_data.fc_port_page1[portnum].dma;
786 data_sz = ioc->fc_data.fc_port_page1[portnum].pg_sz;
787 if (hdr.PageLength * 4 > data_sz) {
788 ioc->fc_data.fc_port_page1[portnum].data = NULL;
789 pci_free_consistent(ioc->pcidev, data_sz, (u8 *)
790 page1_alloc, page1_dma);
791 goto start_over;
792 }
793 }
794
795 memset(page1_alloc,0,data_sz);
796
797 cfg.physAddr = page1_dma;
798 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
799
800 if ((rc = mpt_config(ioc, &cfg)) == 0) {
801 ioc->fc_data.fc_port_page1[portnum].data = page1_alloc;
802 ioc->fc_data.fc_port_page1[portnum].pg_sz = data_sz;
803 ioc->fc_data.fc_port_page1[portnum].dma = page1_dma;
804 }
805 else {
806 ioc->fc_data.fc_port_page1[portnum].data = NULL;
807 pci_free_consistent(ioc->pcidev, data_sz, (u8 *)
808 page1_alloc, page1_dma);
809 }
810
811 return rc;
812}
813
814static void
815mptfc_SetFcPortPage1_defaults(MPT_ADAPTER *ioc)
816{
817 int ii;
818 FCPortPage1_t *pp1;
819
820 #define MPTFC_FW_DEVICE_TIMEOUT (1)
821 #define MPTFC_FW_IO_PEND_TIMEOUT (1)
822 #define ON_FLAGS (MPI_FCPORTPAGE1_FLAGS_IMMEDIATE_ERROR_REPLY)
823 #define OFF_FLAGS (MPI_FCPORTPAGE1_FLAGS_VERBOSE_RESCAN_EVENTS)
824
825 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) {
826 if (mptfc_GetFcPortPage1(ioc, ii) != 0)
827 continue;
828 pp1 = ioc->fc_data.fc_port_page1[ii].data;
829 if ((pp1->InitiatorDeviceTimeout == MPTFC_FW_DEVICE_TIMEOUT)
830 && (pp1->InitiatorIoPendTimeout == MPTFC_FW_IO_PEND_TIMEOUT)
831 && ((pp1->Flags & ON_FLAGS) == ON_FLAGS)
832 && ((pp1->Flags & OFF_FLAGS) == 0))
833 continue;
834 pp1->InitiatorDeviceTimeout = MPTFC_FW_DEVICE_TIMEOUT;
835 pp1->InitiatorIoPendTimeout = MPTFC_FW_IO_PEND_TIMEOUT;
836 pp1->Flags &= ~OFF_FLAGS;
837 pp1->Flags |= ON_FLAGS;
838 mptfc_WriteFcPortPage1(ioc, ii);
839 }
840}
841
842
05e8ec17
MR		 843static void
844mptfc_init_host_attr(MPT_ADAPTER *ioc,int portnum)
845{
846 unsigned class = 0, cos = 0;
847
848 /* don't know what to do as only one scsi (fc) host was allocated */
849 if (portnum != 0)
850 return;
851
852 class = ioc->fc_port_page0[portnum].SupportedServiceClass;
853 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_1)
854 cos |= FC_COS_CLASS1;
855 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_2)
856 cos |= FC_COS_CLASS2;
857 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_3)
858 cos |= FC_COS_CLASS3;
859
860 fc_host_node_name(ioc->sh) =
861 (u64)ioc->fc_port_page0[portnum].WWNN.High << 32
862 | (u64)ioc->fc_port_page0[portnum].WWNN.Low;
863
864 fc_host_port_name(ioc->sh) =
865 (u64)ioc->fc_port_page0[portnum].WWPN.High << 32
866 | (u64)ioc->fc_port_page0[portnum].WWPN.Low;
867
868 fc_host_port_id(ioc->sh) = ioc->fc_port_page0[portnum].PortIdentifier;
869
870 fc_host_supported_classes(ioc->sh) = cos;
871
872 fc_host_tgtid_bind_type(ioc->sh) = FC_TGTID_BIND_BY_WWPN;
873}
874
875static void
876mptfc_rescan_devices(void *arg)
877{
878 MPT_ADAPTER *ioc = (MPT_ADAPTER *)arg;
879 int ii;
880 int work_to_do;
65207fed 881 u64 pn;
05e8ec17
MR		 882 unsigned long flags;
883 struct mptfc_rport_info *ri;
884
885 do {
886 /* start by tagging all ports as missing */
05e8ec17
MR		 887 list_for_each_entry(ri, &ioc->fc_rports, list) {
888 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) {
889 ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING;
890 }
891 }
05e8ec17
MR		 892
893 /*
894 * now rescan devices known to adapter,
895 * will reregister existing rports
896 */
897 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
80d3ac77 898 (void) mptfc_GetFcPortPage0(ioc, ii);
05e8ec17
MR		 899 mptfc_init_host_attr(ioc,ii); /* refresh */
900 mptfc_GetFcDevPage0(ioc,ii,mptfc_register_dev);
901 }
902
903 /* delete devices still missing */
05e8ec17
MR		 904 list_for_each_entry(ri, &ioc->fc_rports, list) {
905 /* if newly missing, delete it */
65207fed 906 if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) {
05e8ec17
MR		 907
908 ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED|
909 MPT_RPORT_INFO_FLAGS_MISSING);
65207fed 910 fc_remote_port_delete(ri->rport); /* won't sleep */
3bc7bf1d 911 ri->rport = NULL;
65207fed
ME		 912
913 pn = (u64)ri->pg0.WWPN.High << 32 |
914 (u64)ri->pg0.WWPN.Low;
3bc7bf1d
MR		 915 dfcprintk ((MYIOC_s_INFO_FMT
916 "mptfc_rescan.%d: %llx deleted\n",
917 ioc->name,
918 ioc->sh->host_no,
65207fed 919 (unsigned long long)pn));
05e8ec17
MR		 920 }
921 }
05e8ec17
MR		 922
923 /*
924 * allow multiple passes as target state
925 * might have changed during scan
926 */
927 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
928 if (ioc->fc_rescan_work_count > 2) /* only need one more */
929 ioc->fc_rescan_work_count = 2;
930 work_to_do = --ioc->fc_rescan_work_count;
931 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
932 } while (work_to_do);
933}
934
2496af39
MED		 935static int
936mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id)
937{
938 struct Scsi_Host *sh;
939 MPT_SCSI_HOST *hd;
940 MPT_ADAPTER *ioc;
941 unsigned long flags;
1ca00bb7 942 int ii;
2496af39
MED		 943 int numSGE = 0;
944 int scale;
945 int ioc_cap;
2496af39
MED		 946 int error=0;
947 int r;
05e8ec17 948
2496af39
MED		 949 if ((r = mpt_attach(pdev,id)) != 0)
950 return r;
05e8ec17 951
2496af39 952 ioc = pci_get_drvdata(pdev);
d335cc38
MED		 953 ioc->DoneCtx = mptfcDoneCtx;
954 ioc->TaskCtx = mptfcTaskCtx;
955 ioc->InternalCtx = mptfcInternalCtx;
2496af39
MED		 956
957 /* Added sanity check on readiness of the MPT adapter.
958 */
959 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) {
960 printk(MYIOC_s_WARN_FMT
961 "Skipping because it's not operational!\n",
962 ioc->name);
7acec1e7
MED		 963 error = -ENODEV;
964 goto out_mptfc_probe;
2496af39
MED		 965 }
966
967 if (!ioc->active) {
968 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n",
969 ioc->name);
7acec1e7
MED		 970 error = -ENODEV;
971 goto out_mptfc_probe;
2496af39
MED		 972 }
973
974 /* Sanity check - ensure at least 1 port is INITIATOR capable
975 */
976 ioc_cap = 0;
977 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
978 if (ioc->pfacts[ii].ProtocolFlags &
979 MPI_PORTFACTS_PROTOCOL_INITIATOR)
980 ioc_cap ++;
981 }
982
983 if (!ioc_cap) {
984 printk(MYIOC_s_WARN_FMT
985 "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n",
986 ioc->name, ioc);
05e8ec17 987 return -ENODEV;
2496af39
MED		 988 }
989
990 sh = scsi_host_alloc(&mptfc_driver_template, sizeof(MPT_SCSI_HOST));
991
992 if (!sh) {
993 printk(MYIOC_s_WARN_FMT
994 "Unable to register controller with SCSI subsystem\n",
995 ioc->name);
7acec1e7
MED		 996 error = -1;
997 goto out_mptfc_probe;
2496af39
MED		 998 }
999
80d3ac77 1000 spin_lock_init(&ioc->fc_rescan_work_lock);
05e8ec17
MR		 1001 INIT_WORK(&ioc->fc_rescan_work, mptfc_rescan_devices,(void *)ioc);
1002
2496af39
MED		 1003 spin_lock_irqsave(&ioc->FreeQlock, flags);
1004
1005 /* Attach the SCSI Host to the IOC structure
1006 */
1007 ioc->sh = sh;
1008
1009 sh->io_port = 0;
1010 sh->n_io_port = 0;
1011 sh->irq = 0;
1012
1013 /* set 16 byte cdb's */
1014 sh->max_cmd_len = 16;
1015
1016 sh->max_id = MPT_MAX_FC_DEVICES<256 ? MPT_MAX_FC_DEVICES : 255;
1017
1018 sh->max_lun = MPT_LAST_LUN + 1;
1019 sh->max_channel = 0;
1020 sh->this_id = ioc->pfacts[0].PortSCSIID;
1021
1022 /* Required entry.
1023 */
1024 sh->unique_id = ioc->id;
1025
1026 /* Verify that we won't exceed the maximum
1027 * number of chain buffers
1028 * We can optimize: ZZ = req_sz/sizeof(SGE)
1029 * For 32bit SGE's:
1030 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ
1031 * + (req_sz - 64)/sizeof(SGE)
1032 * A slightly different algorithm is required for
1033 * 64bit SGEs.
1034 */
1035 scale = ioc->req_sz/(sizeof(dma_addr_t) + sizeof(u32));
1036 if (sizeof(dma_addr_t) == sizeof(u64)) {
1037 numSGE = (scale - 1) *
1038 (ioc->facts.MaxChainDepth-1) + scale +
1039 (ioc->req_sz - 60) / (sizeof(dma_addr_t) +
1040 sizeof(u32));
1041 } else {
1042 numSGE = 1 + (scale - 1) *
1043 (ioc->facts.MaxChainDepth-1) + scale +
1044 (ioc->req_sz - 64) / (sizeof(dma_addr_t) +
1045 sizeof(u32));
1046 }
1047
1048 if (numSGE < sh->sg_tablesize) {
1049 /* Reset this value */
1050 dprintk((MYIOC_s_INFO_FMT
1051 "Resetting sg_tablesize to %d from %d\n",
1052 ioc->name, numSGE, sh->sg_tablesize));
1053 sh->sg_tablesize = numSGE;
1054 }
1055
2496af39
MED		 1056 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1057
1058 hd = (MPT_SCSI_HOST *) sh->hostdata;
1059 hd->ioc = ioc;
1060
1061 /* SCSI needs scsi_cmnd lookup table!
1062 * (with size equal to req_depth*PtrSz!)
1063 */
1ca00bb7
CH		 1064 hd->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC);
1065 if (!hd->ScsiLookup) {
2496af39 1066 error = -ENOMEM;
7acec1e7 1067 goto out_mptfc_probe;
2496af39
MED		 1068 }
1069
1ca00bb7
CH		 1070 dprintk((MYIOC_s_INFO_FMT "ScsiLookup @ %p\n",
1071 ioc->name, hd->ScsiLookup));
2496af39
MED		 1072
1073 /* Allocate memory for the device structures.
1074 * A non-Null pointer at an offset
1075 * indicates a device exists.
1076 * max_id = 1 + maximum id (hosts.h)
1077 */
1ca00bb7
CH		 1078 hd->Targets = kcalloc(sh->max_id, sizeof(void *), GFP_ATOMIC);
1079 if (!hd->Targets) {
2496af39 1080 error = -ENOMEM;
7acec1e7 1081 goto out_mptfc_probe;
2496af39
MED		 1082 }
1083
1ca00bb7 1084 dprintk((KERN_INFO " vdev @ %p\n", hd->Targets));
2496af39
MED		 1085
1086 /* Clear the TM flags
1087 */
1088 hd->tmPending = 0;
1089 hd->tmState = TM_STATE_NONE;
1090 hd->resetPending = 0;
1091 hd->abortSCpnt = NULL;
1092
1093 /* Clear the pointer used to store
1094 * single-threaded commands, i.e., those
1095 * issued during a bus scan, dv and
1096 * configuration pages.
1097 */
1098 hd->cmdPtr = NULL;
1099
1100 /* Initialize this SCSI Hosts' timers
1101 * To use, set the timer expires field
1102 * and add_timer
1103 */
1104 init_timer(&hd->timer);
1105 hd->timer.data = (unsigned long) hd;
1106 hd->timer.function = mptscsih_timer_expired;
1107
2496af39
MED		 1108 hd->mpt_pq_filter = mpt_pq_filter;
1109
1110 ddvprintk((MYIOC_s_INFO_FMT
1111 "mpt_pq_filter %x\n",
1112 ioc->name,
1113 mpt_pq_filter));
1114
1115 init_waitqueue_head(&hd->scandv_waitq);
1116 hd->scandv_wait_done = 0;
1117 hd->last_queue_full = 0;
1118
05e8ec17 1119 sh->transportt = mptfc_transport_template;
2496af39
MED		 1120 error = scsi_add_host (sh, &ioc->pcidev->dev);
1121 if(error) {
1122 dprintk((KERN_ERR MYNAM
1123 "scsi_add_host failed\n"));
7acec1e7 1124 goto out_mptfc_probe;
2496af39
MED		 1125 }
1126
65207fed
ME		 1127 /* initialize workqueue */
1128
1129 snprintf(ioc->fc_rescan_work_q_name, KOBJ_NAME_LEN, "mptfc_wq_%d",
1130 sh->host_no);
1131 ioc->fc_rescan_work_q =
1132 create_singlethread_workqueue(ioc->fc_rescan_work_q_name);
1133 if (!ioc->fc_rescan_work_q)
1134 goto out_mptfc_probe;
1135
80d3ac77
MR		 1136 /*
1137 * Pre-fetch FC port WWN and stuff...
1138 * (FCPortPage0_t stuff)
1139 */
1140 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1141 (void) mptfc_GetFcPortPage0(ioc, ii);
1142 }
ca2f938e 1143 mptfc_SetFcPortPage1_defaults(ioc);
80d3ac77 1144
65207fed
ME		 1145 /*
1146 * scan for rports -
1147 * by doing it via the workqueue, some locking is eliminated
1148 */
1149
1150 ioc->fc_rescan_work_count = 1;
1151 queue_work(ioc->fc_rescan_work_q, &ioc->fc_rescan_work);
1152 flush_workqueue(ioc->fc_rescan_work_q);
05e8ec17 1153
2496af39
MED		 1154 return 0;
1155
7acec1e7 1156out_mptfc_probe:
2496af39
MED		 1157
1158 mptscsih_remove(pdev);
1159 return error;
1160}
1161
1162static struct pci_driver mptfc_driver = {
1163 .name = "mptfc",
1164 .id_table = mptfc_pci_table,
1165 .probe = mptfc_probe,
05e8ec17 1166 .remove = __devexit_p(mptfc_remove),
d18c3db5 1167 .shutdown = mptscsih_shutdown,
2496af39
MED		 1168#ifdef CONFIG_PM
1169 .suspend = mptscsih_suspend,
1170 .resume = mptscsih_resume,
1171#endif
1172};
1173
80d3ac77
MR		 1174static int
1175mptfc_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
1176{
1177 MPT_SCSI_HOST *hd;
1178 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
1179 unsigned long flags;
1180 int rc=1;
1181
1182 devtverboseprintk((MYIOC_s_INFO_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n",
1183 ioc->name, event));
1184
1185 if (ioc->sh == NULL ||
1186 ((hd = (MPT_SCSI_HOST *)ioc->sh->hostdata) == NULL))
1187 return 1;
1188
1189 switch (event) {
1190 case MPI_EVENT_RESCAN:
1191 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1192 if (ioc->fc_rescan_work_q) {
1193 if (ioc->fc_rescan_work_count++ == 0) {
1194 queue_work(ioc->fc_rescan_work_q,
1195 &ioc->fc_rescan_work);
1196 }
1197 }
1198 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1199 break;
1200 default:
1201 rc = mptscsih_event_process(ioc,pEvReply);
1202 break;
1203 }
1204 return rc;
1205}
1206
1207static int
1208mptfc_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
1209{
1210 int rc;
1211 unsigned long flags;
1212
1213 rc = mptscsih_ioc_reset(ioc,reset_phase);
1214 if (rc == 0)
1215 return rc;
1216
1217
1218 dtmprintk((KERN_WARNING MYNAM
1219 ": IOC %s_reset routed to FC host driver!\n",
1220 reset_phase==MPT_IOC_SETUP_RESET ? "setup" : (
1221 reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post")));
1222
1223 if (reset_phase == MPT_IOC_SETUP_RESET) {
1224 }
1225
1226 else if (reset_phase == MPT_IOC_PRE_RESET) {
1227 }
1228
1229 else { /* MPT_IOC_POST_RESET */
ca2f938e 1230 mptfc_SetFcPortPage1_defaults(ioc);
80d3ac77
MR		 1231 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1232 if (ioc->fc_rescan_work_q) {
1233 if (ioc->fc_rescan_work_count++ == 0) {
1234 queue_work(ioc->fc_rescan_work_q,
1235 &ioc->fc_rescan_work);
1236 }
1237 }
1238 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1239 }
1240 return 1;
1241}
1242
2496af39
MED		 1243/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1244/**
1245 * mptfc_init - Register MPT adapter(s) as SCSI host(s) with
1246 * linux scsi mid-layer.
1247 *
1248 * Returns 0 for success, non-zero for failure.
1249 */
1250static int __init
1251mptfc_init(void)
1252{
05e8ec17 1253 int error;
2496af39
MED		 1254
1255 show_mptmod_ver(my_NAME, my_VERSION);
1256
ca2f938e
MR		 1257 /* sanity check module parameters */
1258 if (mptfc_dev_loss_tmo <= 0)
05e8ec17
MR		 1259 mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO;
1260
1261 mptfc_transport_template =
1262 fc_attach_transport(&mptfc_transport_functions);
1263
1264 if (!mptfc_transport_template)
1265 return -ENODEV;
1266
2496af39
MED		 1267 mptfcDoneCtx = mpt_register(mptscsih_io_done, MPTFC_DRIVER);
1268 mptfcTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTFC_DRIVER);
1269 mptfcInternalCtx = mpt_register(mptscsih_scandv_complete, MPTFC_DRIVER);
1270
80d3ac77 1271 if (mpt_event_register(mptfcDoneCtx, mptfc_event_process) == 0) {
3a892bef 1272 devtverboseprintk((KERN_INFO MYNAM
2496af39
MED		 1273 ": Registered for IOC event notifications\n"));
1274 }
1275
80d3ac77 1276 if (mpt_reset_register(mptfcDoneCtx, mptfc_ioc_reset) == 0) {
2496af39
MED		 1277 dprintk((KERN_INFO MYNAM
1278 ": Registered for IOC reset notifications\n"));
1279 }
1280
05e8ec17 1281 error = pci_register_driver(&mptfc_driver);
3bc7bf1d 1282 if (error)
05e8ec17 1283 fc_release_transport(mptfc_transport_template);
05e8ec17
MR		 1284
1285 return error;
1286}
1287
1288/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1289/**
1290 * mptfc_remove - Removed fc infrastructure for devices
1291 * @pdev: Pointer to pci_dev structure
1292 *
1293 */
3bc7bf1d
MR		 1294static void __devexit
1295mptfc_remove(struct pci_dev *pdev)
05e8ec17 1296{
65207fed
ME		 1297 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1298 struct mptfc_rport_info *p, *n;
1299 struct workqueue_struct *work_q;
1300 unsigned long flags;
ca2f938e 1301 int ii;
65207fed
ME		 1302
1303 /* destroy workqueue */
1304 if ((work_q=ioc->fc_rescan_work_q)) {
1305 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1306 ioc->fc_rescan_work_q = NULL;
1307 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1308 destroy_workqueue(work_q);
1309 }
05e8ec17
MR		 1310
1311 fc_remove_host(ioc->sh);
1312
1313 list_for_each_entry_safe(p, n, &ioc->fc_rports, list) {
1314 list_del(&p->list);
1315 kfree(p);
1316 }
1317
ca2f938e
MR		 1318 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) {
1319 if (ioc->fc_data.fc_port_page1[ii].data) {
1320 pci_free_consistent(ioc->pcidev,
1321 ioc->fc_data.fc_port_page1[ii].pg_sz,
1322 (u8 *) ioc->fc_data.fc_port_page1[ii].data,
1323 ioc->fc_data.fc_port_page1[ii].dma);
1324 ioc->fc_data.fc_port_page1[ii].data = NULL;
1325 }
1326 }
1327
05e8ec17 1328 mptscsih_remove(pdev);
2496af39
MED		 1329}
1330
1331/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1332/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1333/**
1334 * mptfc_exit - Unregisters MPT adapter(s)
1335 *
1336 */
1337static void __exit
1338mptfc_exit(void)
1339{
1340 pci_unregister_driver(&mptfc_driver);
05e8ec17
MR		 1341 fc_release_transport(mptfc_transport_template);
1342
2496af39
MED		 1343 mpt_reset_deregister(mptfcDoneCtx);
1344 dprintk((KERN_INFO MYNAM
1345 ": Deregistered for IOC reset notifications\n"));
1346
1347 mpt_event_deregister(mptfcDoneCtx);
1348 dprintk((KERN_INFO MYNAM
1349 ": Deregistered for IOC event notifications\n"));
1350
1351 mpt_deregister(mptfcInternalCtx);
1352 mpt_deregister(mptfcTaskCtx);
1353 mpt_deregister(mptfcDoneCtx);
1354}
1355
1356module_init(mptfc_init);
1357module_exit(mptfc_exit);
Linux kernel - Deliverables
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