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WIP FPC-III support
[linux/fpc-iii.git] / drivers / message / fusion / mptspi.c
blobaf0ce5611e4accdd49d40041cce3488bf58c6d56
1 /*
2 * linux/drivers/message/fusion/mptspi.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
47 #include <linux/module.h>
48 #include <linux/kernel.h>
49 #include <linux/slab.h>
50 #include <linux/init.h>
51 #include <linux/errno.h>
52 #include <linux/kdev_t.h>
53 #include <linux/blkdev.h>
54 #include <linux/delay.h> /* for mdelay */
55 #include <linux/interrupt.h>
56 #include <linux/reboot.h> /* notifier code */
57 #include <linux/workqueue.h>
58 #include <linux/raid_class.h>
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>
65 #include <scsi/scsi_transport.h>
66 #include <scsi/scsi_transport_spi.h>
67 #include <scsi/scsi_dbg.h>
68
69 #include "mptbase.h"
70 #include "mptscsih.h"
71
72 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
73 #define my_NAME "Fusion MPT SPI Host driver"
74 #define my_VERSION MPT_LINUX_VERSION_COMMON
75 #define MYNAM "mptspi"
76
77 MODULE_AUTHOR(MODULEAUTHOR);
78 MODULE_DESCRIPTION(my_NAME);
79 MODULE_LICENSE("GPL");
80 MODULE_VERSION(my_VERSION);
81
82 /* Command line args */
83 static int mpt_saf_te = MPTSCSIH_SAF_TE;
84 module_param(mpt_saf_te, int, 0);
85 MODULE_PARM_DESC(mpt_saf_te, " Force enabling SEP Processor: enable=1 (default=MPTSCSIH_SAF_TE=0)");
86
87 static void mptspi_write_offset(struct scsi_target *, int);
88 static void mptspi_write_width(struct scsi_target *, int);
89 static int mptspi_write_spi_device_pg1(struct scsi_target *,
90 struct _CONFIG_PAGE_SCSI_DEVICE_1 *);
91
92 static struct scsi_transport_template *mptspi_transport_template = NULL;
93
94 static u8 mptspiDoneCtx = MPT_MAX_PROTOCOL_DRIVERS;
95 static u8 mptspiTaskCtx = MPT_MAX_PROTOCOL_DRIVERS;
96 static u8 mptspiInternalCtx = MPT_MAX_PROTOCOL_DRIVERS; /* Used only for internal commands */
97
98 /**
99 * mptspi_setTargetNegoParms - Update the target negotiation parameters
100 * @hd: Pointer to a SCSI Host Structure
101 * @target: per target private data
102 * @sdev: SCSI device
103 *
104 * Update the target negotiation parameters based on the the Inquiry
105 * data, adapter capabilities, and NVRAM settings.
106 **/
107 static void
108 mptspi_setTargetNegoParms(MPT_SCSI_HOST *hd, VirtTarget *target,
109 struct scsi_device *sdev)
110 {
111 MPT_ADAPTER *ioc = hd->ioc;
112 SpiCfgData *pspi_data = &ioc->spi_data;
113 int id = (int) target->id;
114 int nvram;
115 u8 width = MPT_NARROW;
116 u8 factor = MPT_ASYNC;
117 u8 offset = 0;
118 u8 nfactor;
119 u8 noQas = 1;
120
121 target->negoFlags = pspi_data->noQas;
122
123 if (sdev->scsi_level < SCSI_2) {
124 width = 0;
125 factor = MPT_ULTRA2;
126 offset = pspi_data->maxSyncOffset;
127 target->tflags &= ~MPT_TARGET_FLAGS_Q_YES;
128 } else {
129 if (scsi_device_wide(sdev))
130 width = 1;
131
132 if (scsi_device_sync(sdev)) {
133 factor = pspi_data->minSyncFactor;
134 if (!scsi_device_dt(sdev))
135 factor = MPT_ULTRA2;
136 else {
137 if (!scsi_device_ius(sdev) &&
138 !scsi_device_qas(sdev))
139 factor = MPT_ULTRA160;
140 else {
141 factor = MPT_ULTRA320;
142 if (scsi_device_qas(sdev)) {
143 ddvprintk(ioc,
144 printk(MYIOC_s_DEBUG_FMT "Enabling QAS due to "
145 "byte56=%02x on id=%d!\n", ioc->name,
146 scsi_device_qas(sdev), id));
147 noQas = 0;
148 }
149 if (sdev->type == TYPE_TAPE &&
150 scsi_device_ius(sdev))
151 target->negoFlags |= MPT_TAPE_NEGO_IDP;
152 }
153 }
154 offset = pspi_data->maxSyncOffset;
155
156 /* If RAID, never disable QAS
157 * else if non RAID, do not disable
158 * QAS if bit 1 is set
159 * bit 1 QAS support, non-raid only
160 * bit 0 IU support
161 */
162 if (target->raidVolume == 1)
163 noQas = 0;
164 } else {
165 factor = MPT_ASYNC;
166 offset = 0;
167 }
168 }
169
170 if (!sdev->tagged_supported)
171 target->tflags &= ~MPT_TARGET_FLAGS_Q_YES;
172
173 /* Update tflags based on NVRAM settings. (SCSI only)
174 */
175 if (pspi_data->nvram && (pspi_data->nvram[id] != MPT_HOST_NVRAM_INVALID)) {
176 nvram = pspi_data->nvram[id];
177 nfactor = (nvram & MPT_NVRAM_SYNC_MASK) >> 8;
178
179 if (width)
180 width = nvram & MPT_NVRAM_WIDE_DISABLE ? 0 : 1;
181
182 if (offset > 0) {
183 /* Ensure factor is set to the
184 * maximum of: adapter, nvram, inquiry
185 */
186 if (nfactor) {
187 if (nfactor < pspi_data->minSyncFactor )
188 nfactor = pspi_data->minSyncFactor;
189
190 factor = max(factor, nfactor);
191 if (factor == MPT_ASYNC)
192 offset = 0;
193 } else {
194 offset = 0;
195 factor = MPT_ASYNC;
196 }
197 } else {
198 factor = MPT_ASYNC;
199 }
200 }
201
202 /* Make sure data is consistent
203 */
204 if ((!width) && (factor < MPT_ULTRA2))
205 factor = MPT_ULTRA2;
206
207 /* Save the data to the target structure.
208 */
209 target->minSyncFactor = factor;
210 target->maxOffset = offset;
211 target->maxWidth = width;
212
213 spi_min_period(scsi_target(sdev)) = factor;
214 spi_max_offset(scsi_target(sdev)) = offset;
215 spi_max_width(scsi_target(sdev)) = width;
216
217 target->tflags |= MPT_TARGET_FLAGS_VALID_NEGO;
218
219 /* Disable unused features.
220 */
221 if (!width)
222 target->negoFlags |= MPT_TARGET_NO_NEGO_WIDE;
223
224 if (!offset)
225 target->negoFlags |= MPT_TARGET_NO_NEGO_SYNC;
226
227 if ( factor > MPT_ULTRA320 )
228 noQas = 0;
229
230 if (noQas && (pspi_data->noQas == 0)) {
231 pspi_data->noQas |= MPT_TARGET_NO_NEGO_QAS;
232 target->negoFlags |= MPT_TARGET_NO_NEGO_QAS;
233
234 /* Disable QAS in a mixed configuration case
235 */
236
237 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT
238 "Disabling QAS due to noQas=%02x on id=%d!\n", ioc->name, noQas, id));
239 }
240 }
241
242 /**
243 * mptspi_writeIOCPage4 - write IOC Page 4
244 * @hd: Pointer to a SCSI Host Structure
245 * @channel: channel number
246 * @id: write IOC Page4 for this ID & Bus
247 *
248 * Return: -EAGAIN if unable to obtain a Message Frame
249 * or 0 if success.
250 *
251 * Remark: We do not wait for a return, write pages sequentially.
252 **/
253 static int
254 mptspi_writeIOCPage4(MPT_SCSI_HOST *hd, u8 channel , u8 id)
255 {
256 MPT_ADAPTER *ioc = hd->ioc;
257 Config_t *pReq;
258 IOCPage4_t *IOCPage4Ptr;
259 MPT_FRAME_HDR *mf;
260 dma_addr_t dataDma;
261 u32 flagsLength;
262 int ii;
263
264 /* Get a MF for this command.
265 */
266 if ((mf = mpt_get_msg_frame(ioc->DoneCtx, ioc)) == NULL) {
267 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT
268 "writeIOCPage4 : no msg frames!\n",ioc->name));
269 return -EAGAIN;
270 }
271
272 /* Set the request and the data pointers.
273 * Place data at end of MF.
274 */
275 pReq = (Config_t *)mf;
276
277 /* Complete the request frame (same for all requests).
278 */
279 pReq->Action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT;
280 pReq->Reserved = 0;
281 pReq->ChainOffset = 0;
282 pReq->Function = MPI_FUNCTION_CONFIG;
283 pReq->ExtPageLength = 0;
284 pReq->ExtPageType = 0;
285 pReq->MsgFlags = 0;
286 for (ii=0; ii < 8; ii++) {
287 pReq->Reserved2[ii] = 0;
288 }
289
290 IOCPage4Ptr = ioc->spi_data.pIocPg4;
291 dataDma = ioc->spi_data.IocPg4_dma;
292 ii = IOCPage4Ptr->ActiveSEP++;
293 IOCPage4Ptr->SEP[ii].SEPTargetID = id;
294 IOCPage4Ptr->SEP[ii].SEPBus = channel;
295 pReq->Header = IOCPage4Ptr->Header;
296 pReq->PageAddress = cpu_to_le32(id | (channel << 8 ));
297
298 /* Add a SGE to the config request.
299 */
300 flagsLength = MPT_SGE_FLAGS_SSIMPLE_WRITE |
301 (IOCPage4Ptr->Header.PageLength + ii) * 4;
302
303 ioc->add_sge((char *)&pReq->PageBufferSGE, flagsLength, dataDma);
304
305 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT
306 "writeIOCPage4: MaxSEP=%d ActiveSEP=%d id=%d bus=%d\n",
307 ioc->name, IOCPage4Ptr->MaxSEP, IOCPage4Ptr->ActiveSEP, id, channel));
308
309 mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
310
311 return 0;
312 }
313
314 /**
315 * mptspi_initTarget - Target, LUN alloc/free functionality.
316 * @hd: Pointer to MPT_SCSI_HOST structure
317 * @vtarget: per target private data
318 * @sdev: SCSI device
319 *
320 * NOTE: It's only SAFE to call this routine if data points to
321 * sane & valid STANDARD INQUIRY data!
322 *
323 * Allocate and initialize memory for this target.
324 * Save inquiry data.
325 *
326 **/
327 static void
328 mptspi_initTarget(MPT_SCSI_HOST *hd, VirtTarget *vtarget,
329 struct scsi_device *sdev)
330 {
331
332 /* Is LUN supported? If so, upper 2 bits will be 0
333 * in first byte of inquiry data.
334 */
335 if (sdev->inq_periph_qual != 0)
336 return;
337
338 if (vtarget == NULL)
339 return;
340
341 vtarget->type = sdev->type;
342
343 if ((sdev->type == TYPE_PROCESSOR) && (hd->ioc->spi_data.Saf_Te)) {
344 /* Treat all Processors as SAF-TE if
345 * command line option is set */
346 vtarget->tflags |= MPT_TARGET_FLAGS_SAF_TE_ISSUED;
347 mptspi_writeIOCPage4(hd, vtarget->channel, vtarget->id);
348 }else if ((sdev->type == TYPE_PROCESSOR) &&
349 !(vtarget->tflags & MPT_TARGET_FLAGS_SAF_TE_ISSUED )) {
350 if (sdev->inquiry_len > 49 ) {
351 if (sdev->inquiry[44] == 'S' &&
352 sdev->inquiry[45] == 'A' &&
353 sdev->inquiry[46] == 'F' &&
354 sdev->inquiry[47] == '-' &&
355 sdev->inquiry[48] == 'T' &&
356 sdev->inquiry[49] == 'E' ) {
357 vtarget->tflags |= MPT_TARGET_FLAGS_SAF_TE_ISSUED;
358 mptspi_writeIOCPage4(hd, vtarget->channel, vtarget->id);
359 }
360 }
361 }
362 mptspi_setTargetNegoParms(hd, vtarget, sdev);
363 }
364
365 /**
366 * mptspi_is_raid - Determines whether target is belonging to volume
367 * @hd: Pointer to a SCSI HOST structure
368 * @id: target device id
369 *
370 * Return:
371 * non-zero = true
372 * zero = false
373 *
374 */
375 static int
376 mptspi_is_raid(struct _MPT_SCSI_HOST *hd, u32 id)
377 {
378 int i, rc = 0;
379 MPT_ADAPTER *ioc = hd->ioc;
380
381 if (!ioc->raid_data.pIocPg2)
382 goto out;
383
384 if (!ioc->raid_data.pIocPg2->NumActiveVolumes)
385 goto out;
386 for (i=0; i < ioc->raid_data.pIocPg2->NumActiveVolumes; i++) {
387 if (ioc->raid_data.pIocPg2->RaidVolume[i].VolumeID == id) {
388 rc = 1;
389 goto out;
390 }
391 }
392
393 out:
394 return rc;
395 }
396
397 static int mptspi_target_alloc(struct scsi_target *starget)
398 {
399 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
400 struct _MPT_SCSI_HOST *hd = shost_priv(shost);
401 VirtTarget *vtarget;
402 MPT_ADAPTER *ioc;
403
404 if (hd == NULL)
405 return -ENODEV;
406
407 ioc = hd->ioc;
408 vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL);
409 if (!vtarget)
410 return -ENOMEM;
411
412 vtarget->ioc_id = ioc->id;
413 vtarget->tflags = MPT_TARGET_FLAGS_Q_YES;
414 vtarget->id = (u8)starget->id;
415 vtarget->channel = (u8)starget->channel;
416 vtarget->starget = starget;
417 starget->hostdata = vtarget;
418
419 if (starget->channel == 1) {
420 if (mptscsih_is_phys_disk(ioc, 0, starget->id) == 0)
421 return 0;
422 vtarget->tflags |= MPT_TARGET_FLAGS_RAID_COMPONENT;
423 /* The real channel for this device is zero */
424 vtarget->channel = 0;
425 /* The actual physdisknum (for RAID passthrough) */
426 vtarget->id = mptscsih_raid_id_to_num(ioc, 0,
427 starget->id);
428 }
429
430 if (starget->channel == 0 &&
431 mptspi_is_raid(hd, starget->id)) {
432 vtarget->raidVolume = 1;
433 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT
434 "RAID Volume @ channel=%d id=%d\n", ioc->name, starget->channel,
435 starget->id));
436 }
437
438 if (ioc->spi_data.nvram &&
439 ioc->spi_data.nvram[starget->id] != MPT_HOST_NVRAM_INVALID) {
440 u32 nvram = ioc->spi_data.nvram[starget->id];
441 spi_min_period(starget) = (nvram & MPT_NVRAM_SYNC_MASK) >> MPT_NVRAM_SYNC_SHIFT;
442 spi_max_width(starget) = nvram & MPT_NVRAM_WIDE_DISABLE ? 0 : 1;
443 } else {
444 spi_min_period(starget) = ioc->spi_data.minSyncFactor;
445 spi_max_width(starget) = ioc->spi_data.maxBusWidth;
446 }
447 spi_max_offset(starget) = ioc->spi_data.maxSyncOffset;
448
449 spi_offset(starget) = 0;
450 spi_period(starget) = 0xFF;
451 mptspi_write_width(starget, 0);
452
453 return 0;
454 }
455
456 static void
457 mptspi_target_destroy(struct scsi_target *starget)
458 {
459 kfree(starget->hostdata);
460 starget->hostdata = NULL;
461 }
462
463 /**
464 * mptspi_print_write_nego - negotiation parameters debug info that is being sent
465 * @hd: Pointer to a SCSI HOST structure
466 * @starget: SCSI target
467 * @ii: negotiation parameters
468 *
469 */
470 static void
471 mptspi_print_write_nego(struct _MPT_SCSI_HOST *hd, struct scsi_target *starget, u32 ii)
472 {
473 ddvprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "id=%d Requested = 0x%08x"
474 " ( %s factor = 0x%02x @ offset = 0x%02x %s%s%s%s%s%s%s%s)\n",
475 hd->ioc->name, starget->id, ii,
476 ii & MPI_SCSIDEVPAGE0_NP_WIDE ? "Wide ": "",
477 ((ii >> 8) & 0xFF), ((ii >> 16) & 0xFF),
478 ii & MPI_SCSIDEVPAGE0_NP_IU ? "IU ": "",
479 ii & MPI_SCSIDEVPAGE0_NP_DT ? "DT ": "",
480 ii & MPI_SCSIDEVPAGE0_NP_QAS ? "QAS ": "",
481 ii & MPI_SCSIDEVPAGE0_NP_HOLD_MCS ? "HOLDMCS ": "",
482 ii & MPI_SCSIDEVPAGE0_NP_WR_FLOW ? "WRFLOW ": "",
483 ii & MPI_SCSIDEVPAGE0_NP_RD_STRM ? "RDSTRM ": "",
484 ii & MPI_SCSIDEVPAGE0_NP_RTI ? "RTI ": "",
485 ii & MPI_SCSIDEVPAGE0_NP_PCOMP_EN ? "PCOMP ": ""));
486 }
487
488 /**
489 * mptspi_print_read_nego - negotiation parameters debug info that is being read
490 * @hd: Pointer to a SCSI HOST structure
491 * @starget: SCSI target
492 * @ii: negotiation parameters
493 *
494 */
495 static void
496 mptspi_print_read_nego(struct _MPT_SCSI_HOST *hd, struct scsi_target *starget, u32 ii)
497 {
498 ddvprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "id=%d Read = 0x%08x"
499 " ( %s factor = 0x%02x @ offset = 0x%02x %s%s%s%s%s%s%s%s)\n",
500 hd->ioc->name, starget->id, ii,
501 ii & MPI_SCSIDEVPAGE0_NP_WIDE ? "Wide ": "",
502 ((ii >> 8) & 0xFF), ((ii >> 16) & 0xFF),
503 ii & MPI_SCSIDEVPAGE0_NP_IU ? "IU ": "",
504 ii & MPI_SCSIDEVPAGE0_NP_DT ? "DT ": "",
505 ii & MPI_SCSIDEVPAGE0_NP_QAS ? "QAS ": "",
506 ii & MPI_SCSIDEVPAGE0_NP_HOLD_MCS ? "HOLDMCS ": "",
507 ii & MPI_SCSIDEVPAGE0_NP_WR_FLOW ? "WRFLOW ": "",
508 ii & MPI_SCSIDEVPAGE0_NP_RD_STRM ? "RDSTRM ": "",
509 ii & MPI_SCSIDEVPAGE0_NP_RTI ? "RTI ": "",
510 ii & MPI_SCSIDEVPAGE0_NP_PCOMP_EN ? "PCOMP ": ""));
511 }
512
513 static int mptspi_read_spi_device_pg0(struct scsi_target *starget,
514 struct _CONFIG_PAGE_SCSI_DEVICE_0 *pass_pg0)
515 {
516 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
517 struct _MPT_SCSI_HOST *hd = shost_priv(shost);
518 struct _MPT_ADAPTER *ioc = hd->ioc;
519 struct _CONFIG_PAGE_SCSI_DEVICE_0 *spi_dev_pg0;
520 dma_addr_t spi_dev_pg0_dma;
521 int size;
522 struct _x_config_parms cfg;
523 struct _CONFIG_PAGE_HEADER hdr;
524 int err = -EBUSY;
525
526 /* No SPI parameters for RAID devices */
527 if (starget->channel == 0 &&
528 mptspi_is_raid(hd, starget->id))
529 return -1;
530
531 size = ioc->spi_data.sdp0length * 4;
532 /*
533 if (ioc->spi_data.sdp0length & 1)
534 size += size + 4;
535 size += 2048;
536 */
537
538 spi_dev_pg0 = dma_alloc_coherent(&ioc->pcidev->dev, size, &spi_dev_pg0_dma, GFP_KERNEL);
539 if (spi_dev_pg0 == NULL) {
540 starget_printk(KERN_ERR, starget, MYIOC_s_FMT
541 "dma_alloc_coherent for parameters failed\n", ioc->name);
542 return -EINVAL;
543 }
544
545 memset(&hdr, 0, sizeof(hdr));
546
547 hdr.PageVersion = ioc->spi_data.sdp0version;
548 hdr.PageLength = ioc->spi_data.sdp0length;
549 hdr.PageNumber = 0;
550 hdr.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE;
551
552 memset(&cfg, 0, sizeof(cfg));
553
554 cfg.cfghdr.hdr = &hdr;
555 cfg.physAddr = spi_dev_pg0_dma;
556 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
557 cfg.dir = 0;
558 cfg.pageAddr = starget->id;
559 cfg.timeout = 60;
560
561 if (mpt_config(ioc, &cfg)) {
562 starget_printk(KERN_ERR, starget, MYIOC_s_FMT "mpt_config failed\n", ioc->name);
563 goto out_free;
564 }
565 err = 0;
566 memcpy(pass_pg0, spi_dev_pg0, size);
567
568 mptspi_print_read_nego(hd, starget, le32_to_cpu(spi_dev_pg0->NegotiatedParameters));
569
570 out_free:
571 dma_free_coherent(&ioc->pcidev->dev, size, spi_dev_pg0, spi_dev_pg0_dma);
572 return err;
573 }
574
575 static u32 mptspi_getRP(struct scsi_target *starget)
576 {
577 u32 nego = 0;
578
579 nego |= spi_iu(starget) ? MPI_SCSIDEVPAGE1_RP_IU : 0;
580 nego |= spi_dt(starget) ? MPI_SCSIDEVPAGE1_RP_DT : 0;
581 nego |= spi_qas(starget) ? MPI_SCSIDEVPAGE1_RP_QAS : 0;
582 nego |= spi_hold_mcs(starget) ? MPI_SCSIDEVPAGE1_RP_HOLD_MCS : 0;
583 nego |= spi_wr_flow(starget) ? MPI_SCSIDEVPAGE1_RP_WR_FLOW : 0;
584 nego |= spi_rd_strm(starget) ? MPI_SCSIDEVPAGE1_RP_RD_STRM : 0;
585 nego |= spi_rti(starget) ? MPI_SCSIDEVPAGE1_RP_RTI : 0;
586 nego |= spi_pcomp_en(starget) ? MPI_SCSIDEVPAGE1_RP_PCOMP_EN : 0;
587
588 nego |= (spi_period(starget) << MPI_SCSIDEVPAGE1_RP_SHIFT_MIN_SYNC_PERIOD) & MPI_SCSIDEVPAGE1_RP_MIN_SYNC_PERIOD_MASK;
589 nego |= (spi_offset(starget) << MPI_SCSIDEVPAGE1_RP_SHIFT_MAX_SYNC_OFFSET) & MPI_SCSIDEVPAGE1_RP_MAX_SYNC_OFFSET_MASK;
590 nego |= spi_width(starget) ? MPI_SCSIDEVPAGE1_RP_WIDE : 0;
591
592 return nego;
593 }
594
595 static void mptspi_read_parameters(struct scsi_target *starget)
596 {
597 int nego;
598 struct _CONFIG_PAGE_SCSI_DEVICE_0 spi_dev_pg0;
599
600 mptspi_read_spi_device_pg0(starget, &spi_dev_pg0);
601
602 nego = le32_to_cpu(spi_dev_pg0.NegotiatedParameters);
603
604 spi_iu(starget) = (nego & MPI_SCSIDEVPAGE0_NP_IU) ? 1 : 0;
605 spi_dt(starget) = (nego & MPI_SCSIDEVPAGE0_NP_DT) ? 1 : 0;
606 spi_qas(starget) = (nego & MPI_SCSIDEVPAGE0_NP_QAS) ? 1 : 0;
607 spi_wr_flow(starget) = (nego & MPI_SCSIDEVPAGE0_NP_WR_FLOW) ? 1 : 0;
608 spi_rd_strm(starget) = (nego & MPI_SCSIDEVPAGE0_NP_RD_STRM) ? 1 : 0;
609 spi_rti(starget) = (nego & MPI_SCSIDEVPAGE0_NP_RTI) ? 1 : 0;
610 spi_pcomp_en(starget) = (nego & MPI_SCSIDEVPAGE0_NP_PCOMP_EN) ? 1 : 0;
611 spi_hold_mcs(starget) = (nego & MPI_SCSIDEVPAGE0_NP_HOLD_MCS) ? 1 : 0;
612 spi_period(starget) = (nego & MPI_SCSIDEVPAGE0_NP_NEG_SYNC_PERIOD_MASK) >> MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_PERIOD;
613 spi_offset(starget) = (nego & MPI_SCSIDEVPAGE0_NP_NEG_SYNC_OFFSET_MASK) >> MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_OFFSET;
614 spi_width(starget) = (nego & MPI_SCSIDEVPAGE0_NP_WIDE) ? 1 : 0;
615 }
616
617 static int
618 mptscsih_quiesce_raid(MPT_SCSI_HOST *hd, int quiesce, u8 channel, u8 id)
619 {
620 MPT_ADAPTER *ioc = hd->ioc;
621 MpiRaidActionRequest_t *pReq;
622 MPT_FRAME_HDR *mf;
623 int ret;
624 unsigned long timeleft;
625
626 mutex_lock(&ioc->internal_cmds.mutex);
627
628 /* Get and Populate a free Frame
629 */
630 if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
631 dfailprintk(hd->ioc, printk(MYIOC_s_WARN_FMT
632 "%s: no msg frames!\n", ioc->name, __func__));
633 ret = -EAGAIN;
634 goto out;
635 }
636 pReq = (MpiRaidActionRequest_t *)mf;
637 if (quiesce)
638 pReq->Action = MPI_RAID_ACTION_QUIESCE_PHYS_IO;
639 else
640 pReq->Action = MPI_RAID_ACTION_ENABLE_PHYS_IO;
641 pReq->Reserved1 = 0;
642 pReq->ChainOffset = 0;
643 pReq->Function = MPI_FUNCTION_RAID_ACTION;
644 pReq->VolumeID = id;
645 pReq->VolumeBus = channel;
646 pReq->PhysDiskNum = 0;
647 pReq->MsgFlags = 0;
648 pReq->Reserved2 = 0;
649 pReq->ActionDataWord = 0; /* Reserved for this action */
650
651 ioc->add_sge((char *)&pReq->ActionDataSGE,
652 MPT_SGE_FLAGS_SSIMPLE_READ | 0, (dma_addr_t) -1);
653
654 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "RAID Volume action=%x channel=%d id=%d\n",
655 ioc->name, pReq->Action, channel, id));
656
657 INITIALIZE_MGMT_STATUS(ioc->internal_cmds.status)
658 mpt_put_msg_frame(ioc->InternalCtx, ioc, mf);
659 timeleft = wait_for_completion_timeout(&ioc->internal_cmds.done, 10*HZ);
660 if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
661 ret = -ETIME;
662 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: TIMED OUT!\n",
663 ioc->name, __func__));
664 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET)
665 goto out;
666 if (!timeleft) {
667 printk(MYIOC_s_WARN_FMT "Issuing Reset from %s!!\n",
668 ioc->name, __func__);
669 mpt_HardResetHandler(ioc, CAN_SLEEP);
670 mpt_free_msg_frame(ioc, mf);
671 }
672 goto out;
673 }
674
675 ret = ioc->internal_cmds.completion_code;
676
677 out:
678 CLEAR_MGMT_STATUS(ioc->internal_cmds.status)
679 mutex_unlock(&ioc->internal_cmds.mutex);
680 return ret;
681 }
682
683 static void mptspi_dv_device(struct _MPT_SCSI_HOST *hd,
684 struct scsi_device *sdev)
685 {
686 VirtTarget *vtarget = scsi_target(sdev)->hostdata;
687 MPT_ADAPTER *ioc = hd->ioc;
688
689 /* no DV on RAID devices */
690 if (sdev->channel == 0 &&
691 mptspi_is_raid(hd, sdev->id))
692 return;
693
694 /* If this is a piece of a RAID, then quiesce first */
695 if (sdev->channel == 1 &&
696 mptscsih_quiesce_raid(hd, 1, vtarget->channel, vtarget->id) < 0) {
697 starget_printk(KERN_ERR, scsi_target(sdev), MYIOC_s_FMT
698 "Integrated RAID quiesce failed\n", ioc->name);
699 return;
700 }
701
702 hd->spi_pending |= (1 << sdev->id);
703 spi_dv_device(sdev);
704 hd->spi_pending &= ~(1 << sdev->id);
705
706 if (sdev->channel == 1 &&
707 mptscsih_quiesce_raid(hd, 0, vtarget->channel, vtarget->id) < 0)
708 starget_printk(KERN_ERR, scsi_target(sdev), MYIOC_s_FMT
709 "Integrated RAID resume failed\n", ioc->name);
710
711 mptspi_read_parameters(sdev->sdev_target);
712 spi_display_xfer_agreement(sdev->sdev_target);
713 mptspi_read_parameters(sdev->sdev_target);
714 }
715
716 static int mptspi_slave_alloc(struct scsi_device *sdev)
717 {
718 MPT_SCSI_HOST *hd = shost_priv(sdev->host);
719 VirtTarget *vtarget;
720 VirtDevice *vdevice;
721 struct scsi_target *starget;
722 MPT_ADAPTER *ioc = hd->ioc;
723
724 if (sdev->channel == 1 &&
725 mptscsih_is_phys_disk(ioc, 0, sdev->id) == 0)
726 return -ENXIO;
727
728 vdevice = kzalloc(sizeof(VirtDevice), GFP_KERNEL);
729 if (!vdevice) {
730 printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n",
731 ioc->name, sizeof(VirtDevice));
732 return -ENOMEM;
733 }
734
735 vdevice->lun = sdev->lun;
736 sdev->hostdata = vdevice;
737
738 starget = scsi_target(sdev);
739 vtarget = starget->hostdata;
740 vdevice->vtarget = vtarget;
741 vtarget->num_luns++;
742
743 if (sdev->channel == 1)
744 sdev->no_uld_attach = 1;
745
746 return 0;
747 }
748
749 static int mptspi_slave_configure(struct scsi_device *sdev)
750 {
751 struct _MPT_SCSI_HOST *hd = shost_priv(sdev->host);
752 VirtTarget *vtarget = scsi_target(sdev)->hostdata;
753 int ret;
754
755 mptspi_initTarget(hd, vtarget, sdev);
756
757 ret = mptscsih_slave_configure(sdev);
758
759 if (ret)
760 return ret;
761
762 ddvprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "id=%d min_period=0x%02x"
763 " max_offset=0x%02x max_width=%d\n", hd->ioc->name,
764 sdev->id, spi_min_period(scsi_target(sdev)),
765 spi_max_offset(scsi_target(sdev)),
766 spi_max_width(scsi_target(sdev))));
767
768 if ((sdev->channel == 1 ||
769 !(mptspi_is_raid(hd, sdev->id))) &&
770 !spi_initial_dv(sdev->sdev_target))
771 mptspi_dv_device(hd, sdev);
772
773 return 0;
774 }
775
776 static int
777 mptspi_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *SCpnt)
778 {
779 struct _MPT_SCSI_HOST *hd = shost_priv(shost);
780 VirtDevice *vdevice = SCpnt->device->hostdata;
781 MPT_ADAPTER *ioc = hd->ioc;
782
783 if (!vdevice || !vdevice->vtarget) {
784 SCpnt->result = DID_NO_CONNECT << 16;
785 SCpnt->scsi_done(SCpnt);
786 return 0;
787 }
788
789 if (SCpnt->device->channel == 1 &&
790 mptscsih_is_phys_disk(ioc, 0, SCpnt->device->id) == 0) {
791 SCpnt->result = DID_NO_CONNECT << 16;
792 SCpnt->scsi_done(SCpnt);
793 return 0;
794 }
795
796 if (spi_dv_pending(scsi_target(SCpnt->device)))
797 ddvprintk(ioc, scsi_print_command(SCpnt));
798
799 return mptscsih_qcmd(SCpnt);
800 }
801
802 static void mptspi_slave_destroy(struct scsi_device *sdev)
803 {
804 struct scsi_target *starget = scsi_target(sdev);
805 VirtTarget *vtarget = starget->hostdata;
806 VirtDevice *vdevice = sdev->hostdata;
807
808 /* Will this be the last lun on a non-raid device? */
809 if (vtarget->num_luns == 1 && vdevice->configured_lun) {
810 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
811
812 /* Async Narrow */
813 pg1.RequestedParameters = 0;
814 pg1.Reserved = 0;
815 pg1.Configuration = 0;
816
817 mptspi_write_spi_device_pg1(starget, &pg1);
818 }
819
820 mptscsih_slave_destroy(sdev);
821 }
822
823 static struct scsi_host_template mptspi_driver_template = {
824 .module = THIS_MODULE,
825 .proc_name = "mptspi",
826 .show_info = mptscsih_show_info,
827 .name = "MPT SPI Host",
828 .info = mptscsih_info,
829 .queuecommand = mptspi_qcmd,
830 .target_alloc = mptspi_target_alloc,
831 .slave_alloc = mptspi_slave_alloc,
832 .slave_configure = mptspi_slave_configure,
833 .target_destroy = mptspi_target_destroy,
834 .slave_destroy = mptspi_slave_destroy,
835 .change_queue_depth = mptscsih_change_queue_depth,
836 .eh_abort_handler = mptscsih_abort,
837 .eh_device_reset_handler = mptscsih_dev_reset,
838 .eh_bus_reset_handler = mptscsih_bus_reset,
839 .eh_host_reset_handler = mptscsih_host_reset,
840 .bios_param = mptscsih_bios_param,
841 .can_queue = MPT_SCSI_CAN_QUEUE,
842 .this_id = -1,
843 .sg_tablesize = MPT_SCSI_SG_DEPTH,
844 .max_sectors = 8192,
845 .cmd_per_lun = 7,
846 .shost_attrs = mptscsih_host_attrs,
847 };
848
849 static int mptspi_write_spi_device_pg1(struct scsi_target *starget,
850 struct _CONFIG_PAGE_SCSI_DEVICE_1 *pass_pg1)
851 {
852 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
853 struct _MPT_SCSI_HOST *hd = shost_priv(shost);
854 struct _MPT_ADAPTER *ioc = hd->ioc;
855 struct _CONFIG_PAGE_SCSI_DEVICE_1 *pg1;
856 dma_addr_t pg1_dma;
857 int size;
858 struct _x_config_parms cfg;
859 struct _CONFIG_PAGE_HEADER hdr;
860 int err = -EBUSY;
861 u32 nego_parms;
862 u32 period;
863 struct scsi_device *sdev;
864 int i;
865
866 /* don't allow updating nego parameters on RAID devices */
867 if (starget->channel == 0 &&
868 mptspi_is_raid(hd, starget->id))
869 return -1;
870
871 size = ioc->spi_data.sdp1length * 4;
872
873 pg1 = dma_alloc_coherent(&ioc->pcidev->dev, size, &pg1_dma, GFP_KERNEL);
874 if (pg1 == NULL) {
875 starget_printk(KERN_ERR, starget, MYIOC_s_FMT
876 "dma_alloc_coherent for parameters failed\n", ioc->name);
877 return -EINVAL;
878 }
879
880 memset(&hdr, 0, sizeof(hdr));
881
882 hdr.PageVersion = ioc->spi_data.sdp1version;
883 hdr.PageLength = ioc->spi_data.sdp1length;
884 hdr.PageNumber = 1;
885 hdr.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE;
886
887 memset(&cfg, 0, sizeof(cfg));
888
889 cfg.cfghdr.hdr = &hdr;
890 cfg.physAddr = pg1_dma;
891 cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT;
892 cfg.dir = 1;
893 cfg.pageAddr = starget->id;
894
895 memcpy(pg1, pass_pg1, size);
896
897 pg1->Header.PageVersion = hdr.PageVersion;
898 pg1->Header.PageLength = hdr.PageLength;
899 pg1->Header.PageNumber = hdr.PageNumber;
900 pg1->Header.PageType = hdr.PageType;
901
902 nego_parms = le32_to_cpu(pg1->RequestedParameters);
903 period = (nego_parms & MPI_SCSIDEVPAGE1_RP_MIN_SYNC_PERIOD_MASK) >>
904 MPI_SCSIDEVPAGE1_RP_SHIFT_MIN_SYNC_PERIOD;
905 if (period == 8) {
906 /* Turn on inline data padding for TAPE when running U320 */
907 for (i = 0 ; i < 16; i++) {
908 sdev = scsi_device_lookup_by_target(starget, i);
909 if (sdev && sdev->type == TYPE_TAPE) {
910 sdev_printk(KERN_DEBUG, sdev, MYIOC_s_FMT
911 "IDP:ON\n", ioc->name);
912 nego_parms |= MPI_SCSIDEVPAGE1_RP_IDP;
913 pg1->RequestedParameters =
914 cpu_to_le32(nego_parms);
915 break;
916 }
917 }
918 }
919
920 mptspi_print_write_nego(hd, starget, le32_to_cpu(pg1->RequestedParameters));
921
922 if (mpt_config(ioc, &cfg)) {
923 starget_printk(KERN_ERR, starget, MYIOC_s_FMT
924 "mpt_config failed\n", ioc->name);
925 goto out_free;
926 }
927 err = 0;
928
929 out_free:
930 dma_free_coherent(&ioc->pcidev->dev, size, pg1, pg1_dma);
931 return err;
932 }
933
934 static void mptspi_write_offset(struct scsi_target *starget, int offset)
935 {
936 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
937 u32 nego;
938
939 if (offset < 0)
940 offset = 0;
941
942 if (offset > 255)
943 offset = 255;
944
945 if (spi_offset(starget) == -1)
946 mptspi_read_parameters(starget);
947
948 spi_offset(starget) = offset;
949
950 nego = mptspi_getRP(starget);
951
952 pg1.RequestedParameters = cpu_to_le32(nego);
953 pg1.Reserved = 0;
954 pg1.Configuration = 0;
955
956 mptspi_write_spi_device_pg1(starget, &pg1);
957 }
958
959 static void mptspi_write_period(struct scsi_target *starget, int period)
960 {
961 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
962 u32 nego;
963
964 if (period < 8)
965 period = 8;
966
967 if (period > 255)
968 period = 255;
969
970 if (spi_period(starget) == -1)
971 mptspi_read_parameters(starget);
972
973 if (period == 8) {
974 spi_iu(starget) = 1;
975 spi_dt(starget) = 1;
976 } else if (period == 9) {
977 spi_dt(starget) = 1;
978 }
979
980 spi_period(starget) = period;
981
982 nego = mptspi_getRP(starget);
983
984 pg1.RequestedParameters = cpu_to_le32(nego);
985 pg1.Reserved = 0;
986 pg1.Configuration = 0;
987
988 mptspi_write_spi_device_pg1(starget, &pg1);
989 }
990
991 static void mptspi_write_dt(struct scsi_target *starget, int dt)
992 {
993 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
994 u32 nego;
995
996 if (spi_period(starget) == -1)
997 mptspi_read_parameters(starget);
998
999 if (!dt && spi_period(starget) < 10)
1000 spi_period(starget) = 10;
1001
1002 spi_dt(starget) = dt;
1003
1004 nego = mptspi_getRP(starget);
1005
1006
1007 pg1.RequestedParameters = cpu_to_le32(nego);
1008 pg1.Reserved = 0;
1009 pg1.Configuration = 0;
1010
1011 mptspi_write_spi_device_pg1(starget, &pg1);
1012 }
1013
1014 static void mptspi_write_iu(struct scsi_target *starget, int iu)
1015 {
1016 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
1017 u32 nego;
1018
1019 if (spi_period(starget) == -1)
1020 mptspi_read_parameters(starget);
1021
1022 if (!iu && spi_period(starget) < 9)
1023 spi_period(starget) = 9;
1024
1025 spi_iu(starget) = iu;
1026
1027 nego = mptspi_getRP(starget);
1028
1029 pg1.RequestedParameters = cpu_to_le32(nego);
1030 pg1.Reserved = 0;
1031 pg1.Configuration = 0;
1032
1033 mptspi_write_spi_device_pg1(starget, &pg1);
1034 }
1035
1036 #define MPTSPI_SIMPLE_TRANSPORT_PARM(parm) \
1037 static void mptspi_write_##parm(struct scsi_target *starget, int parm)\
1038 { \
1039 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; \
1040 u32 nego; \
1041 \
1042 spi_##parm(starget) = parm; \
1043 \
1044 nego = mptspi_getRP(starget); \
1045 \
1046 pg1.RequestedParameters = cpu_to_le32(nego); \
1047 pg1.Reserved = 0; \
1048 pg1.Configuration = 0; \
1049 \
1050 mptspi_write_spi_device_pg1(starget, &pg1); \
1051 }
1052
1053 MPTSPI_SIMPLE_TRANSPORT_PARM(rd_strm)
1054 MPTSPI_SIMPLE_TRANSPORT_PARM(wr_flow)
1055 MPTSPI_SIMPLE_TRANSPORT_PARM(rti)
1056 MPTSPI_SIMPLE_TRANSPORT_PARM(hold_mcs)
1057 MPTSPI_SIMPLE_TRANSPORT_PARM(pcomp_en)
1058
1059 static void mptspi_write_qas(struct scsi_target *starget, int qas)
1060 {
1061 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
1062 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
1063 struct _MPT_SCSI_HOST *hd = shost_priv(shost);
1064 VirtTarget *vtarget = starget->hostdata;
1065 u32 nego;
1066
1067 if ((vtarget->negoFlags & MPT_TARGET_NO_NEGO_QAS) ||
1068 hd->ioc->spi_data.noQas)
1069 spi_qas(starget) = 0;
1070 else
1071 spi_qas(starget) = qas;
1072
1073 nego = mptspi_getRP(starget);
1074
1075 pg1.RequestedParameters = cpu_to_le32(nego);
1076 pg1.Reserved = 0;
1077 pg1.Configuration = 0;
1078
1079 mptspi_write_spi_device_pg1(starget, &pg1);
1080 }
1081
1082 static void mptspi_write_width(struct scsi_target *starget, int width)
1083 {
1084 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
1085 u32 nego;
1086
1087 if (!width) {
1088 spi_dt(starget) = 0;
1089 if (spi_period(starget) < 10)
1090 spi_period(starget) = 10;
1091 }
1092
1093 spi_width(starget) = width;
1094
1095 nego = mptspi_getRP(starget);
1096
1097 pg1.RequestedParameters = cpu_to_le32(nego);
1098 pg1.Reserved = 0;
1099 pg1.Configuration = 0;
1100
1101 mptspi_write_spi_device_pg1(starget, &pg1);
1102 }
1103
1104 struct work_queue_wrapper {
1105 struct work_struct work;
1106 struct _MPT_SCSI_HOST *hd;
1107 int disk;
1108 };
1109
1110 static void mpt_work_wrapper(struct work_struct *work)
1111 {
1112 struct work_queue_wrapper *wqw =
1113 container_of(work, struct work_queue_wrapper, work);
1114 struct _MPT_SCSI_HOST *hd = wqw->hd;
1115 MPT_ADAPTER *ioc = hd->ioc;
1116 struct Scsi_Host *shost = ioc->sh;
1117 struct scsi_device *sdev;
1118 int disk = wqw->disk;
1119 struct _CONFIG_PAGE_IOC_3 *pg3;
1120
1121 kfree(wqw);
1122
1123 mpt_findImVolumes(ioc);
1124 pg3 = ioc->raid_data.pIocPg3;
1125 if (!pg3)
1126 return;
1127
1128 shost_for_each_device(sdev,shost) {
1129 struct scsi_target *starget = scsi_target(sdev);
1130 VirtTarget *vtarget = starget->hostdata;
1131
1132 /* only want to search RAID components */
1133 if (sdev->channel != 1)
1134 continue;
1135
1136 /* The id is the raid PhysDiskNum, even if
1137 * starget->id is the actual target address */
1138 if(vtarget->id != disk)
1139 continue;
1140
1141 starget_printk(KERN_INFO, vtarget->starget, MYIOC_s_FMT
1142 "Integrated RAID requests DV of new device\n", ioc->name);
1143 mptspi_dv_device(hd, sdev);
1144 }
1145 shost_printk(KERN_INFO, shost, MYIOC_s_FMT
1146 "Integrated RAID detects new device %d\n", ioc->name, disk);
1147 scsi_scan_target(&ioc->sh->shost_gendev, 1, disk, 0, SCSI_SCAN_RESCAN);
1148 }
1149
1150
1151 static void mpt_dv_raid(struct _MPT_SCSI_HOST *hd, int disk)
1152 {
1153 struct work_queue_wrapper *wqw = kmalloc(sizeof(*wqw), GFP_ATOMIC);
1154 MPT_ADAPTER *ioc = hd->ioc;
1155
1156 if (!wqw) {
1157 shost_printk(KERN_ERR, ioc->sh, MYIOC_s_FMT
1158 "Failed to act on RAID event for physical disk %d\n",
1159 ioc->name, disk);
1160 return;
1161 }
1162 INIT_WORK(&wqw->work, mpt_work_wrapper);
1163 wqw->hd = hd;
1164 wqw->disk = disk;
1165
1166 schedule_work(&wqw->work);
1167 }
1168
1169 static int
1170 mptspi_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
1171 {
1172 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
1173 struct _MPT_SCSI_HOST *hd = shost_priv(ioc->sh);
1174
1175 if (ioc->bus_type != SPI)
1176 return 0;
1177
1178 if (hd && event == MPI_EVENT_INTEGRATED_RAID) {
1179 int reason
1180 = (le32_to_cpu(pEvReply->Data[0]) & 0x00FF0000) >> 16;
1181
1182 if (reason == MPI_EVENT_RAID_RC_DOMAIN_VAL_NEEDED) {
1183 int disk = (le32_to_cpu(pEvReply->Data[0]) & 0xFF000000) >> 24;
1184 mpt_dv_raid(hd, disk);
1185 }
1186 }
1187 return mptscsih_event_process(ioc, pEvReply);
1188 }
1189
1190 static int
1191 mptspi_deny_binding(struct scsi_target *starget)
1192 {
1193 struct _MPT_SCSI_HOST *hd =
1194 (struct _MPT_SCSI_HOST *)dev_to_shost(starget->dev.parent)->hostdata;
1195 return ((mptspi_is_raid(hd, starget->id)) &&
1196 starget->channel == 0) ? 1 : 0;
1197 }
1198
1199 static struct spi_function_template mptspi_transport_functions = {
1200 .get_offset = mptspi_read_parameters,
1201 .set_offset = mptspi_write_offset,
1202 .show_offset = 1,
1203 .get_period = mptspi_read_parameters,
1204 .set_period = mptspi_write_period,
1205 .show_period = 1,
1206 .get_width = mptspi_read_parameters,
1207 .set_width = mptspi_write_width,
1208 .show_width = 1,
1209 .get_iu = mptspi_read_parameters,
1210 .set_iu = mptspi_write_iu,
1211 .show_iu = 1,
1212 .get_dt = mptspi_read_parameters,
1213 .set_dt = mptspi_write_dt,
1214 .show_dt = 1,
1215 .get_qas = mptspi_read_parameters,
1216 .set_qas = mptspi_write_qas,
1217 .show_qas = 1,
1218 .get_wr_flow = mptspi_read_parameters,
1219 .set_wr_flow = mptspi_write_wr_flow,
1220 .show_wr_flow = 1,
1221 .get_rd_strm = mptspi_read_parameters,
1222 .set_rd_strm = mptspi_write_rd_strm,
1223 .show_rd_strm = 1,
1224 .get_rti = mptspi_read_parameters,
1225 .set_rti = mptspi_write_rti,
1226 .show_rti = 1,
1227 .get_pcomp_en = mptspi_read_parameters,
1228 .set_pcomp_en = mptspi_write_pcomp_en,
1229 .show_pcomp_en = 1,
1230 .get_hold_mcs = mptspi_read_parameters,
1231 .set_hold_mcs = mptspi_write_hold_mcs,
1232 .show_hold_mcs = 1,
1233 .deny_binding = mptspi_deny_binding,
1234 };
1235
1236 /****************************************************************************
1237 * Supported hardware
1238 */
1239
1240 static struct pci_device_id mptspi_pci_table[] = {
1241 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_53C1030,
1242 PCI_ANY_ID, PCI_ANY_ID },
1243 { PCI_VENDOR_ID_ATTO, MPI_MANUFACTPAGE_DEVID_53C1030,
1244 PCI_ANY_ID, PCI_ANY_ID },
1245 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_53C1035,
1246 PCI_ANY_ID, PCI_ANY_ID },
1247 {0} /* Terminating entry */
1248 };
1249 MODULE_DEVICE_TABLE(pci, mptspi_pci_table);
1250
1251
1252 /*
1253 * renegotiate for a given target
1254 */
1255 static void
1256 mptspi_dv_renegotiate_work(struct work_struct *work)
1257 {
1258 struct work_queue_wrapper *wqw =
1259 container_of(work, struct work_queue_wrapper, work);
1260 struct _MPT_SCSI_HOST *hd = wqw->hd;
1261 struct scsi_device *sdev;
1262 struct scsi_target *starget;
1263 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
1264 u32 nego;
1265 MPT_ADAPTER *ioc = hd->ioc;
1266
1267 kfree(wqw);
1268
1269 if (hd->spi_pending) {
1270 shost_for_each_device(sdev, ioc->sh) {
1271 if (hd->spi_pending & (1 << sdev->id))
1272 continue;
1273 starget = scsi_target(sdev);
1274 nego = mptspi_getRP(starget);
1275 pg1.RequestedParameters = cpu_to_le32(nego);
1276 pg1.Reserved = 0;
1277 pg1.Configuration = 0;
1278 mptspi_write_spi_device_pg1(starget, &pg1);
1279 }
1280 } else {
1281 shost_for_each_device(sdev, ioc->sh)
1282 mptspi_dv_device(hd, sdev);
1283 }
1284 }
1285
1286 static void
1287 mptspi_dv_renegotiate(struct _MPT_SCSI_HOST *hd)
1288 {
1289 struct work_queue_wrapper *wqw = kmalloc(sizeof(*wqw), GFP_ATOMIC);
1290
1291 if (!wqw)
1292 return;
1293
1294 INIT_WORK(&wqw->work, mptspi_dv_renegotiate_work);
1295 wqw->hd = hd;
1296
1297 schedule_work(&wqw->work);
1298 }
1299
1300 /*
1301 * spi module reset handler
1302 */
1303 static int
1304 mptspi_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
1305 {
1306 int rc;
1307
1308 rc = mptscsih_ioc_reset(ioc, reset_phase);
1309 if ((ioc->bus_type != SPI) || (!rc))
1310 return rc;
1311
1312 /* only try to do a renegotiation if we're properly set up
1313 * if we get an ioc fault on bringup, ioc->sh will be NULL */
1314 if (reset_phase == MPT_IOC_POST_RESET &&
1315 ioc->sh) {
1316 struct _MPT_SCSI_HOST *hd = shost_priv(ioc->sh);
1317
1318 mptspi_dv_renegotiate(hd);
1319 }
1320
1321 return rc;
1322 }
1323
1324 #ifdef CONFIG_PM
1325 /*
1326 * spi module resume handler
1327 */
1328 static int
1329 mptspi_resume(struct pci_dev *pdev)
1330 {
1331 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1332 struct _MPT_SCSI_HOST *hd = shost_priv(ioc->sh);
1333 int rc;
1334
1335 rc = mptscsih_resume(pdev);
1336 mptspi_dv_renegotiate(hd);
1337
1338 return rc;
1339 }
1340 #endif
1341
1342 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1343 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1344 /*
1345 * mptspi_probe - Installs scsi devices per bus.
1346 * @pdev: Pointer to pci_dev structure
1347 *
1348 * Returns 0 for success, non-zero for failure.
1349 *
1350 */
1351 static int
1352 mptspi_probe(struct pci_dev *pdev, const struct pci_device_id *id)
1353 {
1354 struct Scsi_Host *sh;
1355 MPT_SCSI_HOST *hd;
1356 MPT_ADAPTER *ioc;
1357 unsigned long flags;
1358 int ii;
1359 int numSGE = 0;
1360 int scale;
1361 int ioc_cap;
1362 int error=0;
1363 int r;
1364
1365 if ((r = mpt_attach(pdev,id)) != 0)
1366 return r;
1367
1368 ioc = pci_get_drvdata(pdev);
1369 ioc->DoneCtx = mptspiDoneCtx;
1370 ioc->TaskCtx = mptspiTaskCtx;
1371 ioc->InternalCtx = mptspiInternalCtx;
1372
1373 /* Added sanity check on readiness of the MPT adapter.
1374 */
1375 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) {
1376 printk(MYIOC_s_WARN_FMT
1377 "Skipping because it's not operational!\n",
1378 ioc->name);
1379 error = -ENODEV;
1380 goto out_mptspi_probe;
1381 }
1382
1383 if (!ioc->active) {
1384 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n",
1385 ioc->name);
1386 error = -ENODEV;
1387 goto out_mptspi_probe;
1388 }
1389
1390 /* Sanity check - ensure at least 1 port is INITIATOR capable
1391 */
1392 ioc_cap = 0;
1393 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1394 if (ioc->pfacts[ii].ProtocolFlags &
1395 MPI_PORTFACTS_PROTOCOL_INITIATOR)
1396 ioc_cap ++;
1397 }
1398
1399 if (!ioc_cap) {
1400 printk(MYIOC_s_WARN_FMT
1401 "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n",
1402 ioc->name, ioc);
1403 return 0;
1404 }
1405
1406 sh = scsi_host_alloc(&mptspi_driver_template, sizeof(MPT_SCSI_HOST));
1407
1408 if (!sh) {
1409 printk(MYIOC_s_WARN_FMT
1410 "Unable to register controller with SCSI subsystem\n",
1411 ioc->name);
1412 error = -1;
1413 goto out_mptspi_probe;
1414 }
1415
1416 /* VMWare emulation doesn't properly implement WRITE_SAME
1417 */
1418 if (pdev->subsystem_vendor == 0x15AD)
1419 sh->no_write_same = 1;
1420
1421 spin_lock_irqsave(&ioc->FreeQlock, flags);
1422
1423 /* Attach the SCSI Host to the IOC structure
1424 */
1425 ioc->sh = sh;
1426
1427 sh->io_port = 0;
1428 sh->n_io_port = 0;
1429 sh->irq = 0;
1430
1431 /* set 16 byte cdb's */
1432 sh->max_cmd_len = 16;
1433
1434 /* Yikes! This is important!
1435 * Otherwise, by default, linux
1436 * only scans target IDs 0-7!
1437 * pfactsN->MaxDevices unreliable
1438 * (not supported in early
1439 * versions of the FW).
1440 * max_id = 1 + actual max id,
1441 * max_lun = 1 + actual last lun,
1442 * see hosts.h :o(
1443 */
1444 sh->max_id = ioc->devices_per_bus;
1445
1446 sh->max_lun = MPT_LAST_LUN + 1;
1447 /*
1448 * If RAID Firmware Detected, setup virtual channel
1449 */
1450 if (ioc->ir_firmware)
1451 sh->max_channel = 1;
1452 else
1453 sh->max_channel = 0;
1454 sh->this_id = ioc->pfacts[0].PortSCSIID;
1455
1456 /* Required entry.
1457 */
1458 sh->unique_id = ioc->id;
1459
1460 /* Verify that we won't exceed the maximum
1461 * number of chain buffers
1462 * We can optimize: ZZ = req_sz/sizeof(SGE)
1463 * For 32bit SGE's:
1464 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ
1465 * + (req_sz - 64)/sizeof(SGE)
1466 * A slightly different algorithm is required for
1467 * 64bit SGEs.
1468 */
1469 scale = ioc->req_sz/ioc->SGE_size;
1470 if (ioc->sg_addr_size == sizeof(u64)) {
1471 numSGE = (scale - 1) *
1472 (ioc->facts.MaxChainDepth-1) + scale +
1473 (ioc->req_sz - 60) / ioc->SGE_size;
1474 } else {
1475 numSGE = 1 + (scale - 1) *
1476 (ioc->facts.MaxChainDepth-1) + scale +
1477 (ioc->req_sz - 64) / ioc->SGE_size;
1478 }
1479
1480 if (numSGE < sh->sg_tablesize) {
1481 /* Reset this value */
1482 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1483 "Resetting sg_tablesize to %d from %d\n",
1484 ioc->name, numSGE, sh->sg_tablesize));
1485 sh->sg_tablesize = numSGE;
1486 }
1487
1488 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1489
1490 hd = shost_priv(sh);
1491 hd->ioc = ioc;
1492
1493 /* SCSI needs scsi_cmnd lookup table!
1494 * (with size equal to req_depth*PtrSz!)
1495 */
1496 ioc->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC);
1497 if (!ioc->ScsiLookup) {
1498 error = -ENOMEM;
1499 goto out_mptspi_probe;
1500 }
1501 spin_lock_init(&ioc->scsi_lookup_lock);
1502
1503 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScsiLookup @ %p\n",
1504 ioc->name, ioc->ScsiLookup));
1505
1506 ioc->spi_data.Saf_Te = mpt_saf_te;
1507 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1508 "saf_te %x\n",
1509 ioc->name,
1510 mpt_saf_te));
1511 ioc->spi_data.noQas = 0;
1512
1513 hd->last_queue_full = 0;
1514 hd->spi_pending = 0;
1515
1516 /* Some versions of the firmware don't support page 0; without
1517 * that we can't get the parameters */
1518 if (ioc->spi_data.sdp0length != 0)
1519 sh->transportt = mptspi_transport_template;
1520
1521 error = scsi_add_host (sh, &ioc->pcidev->dev);
1522 if(error) {
1523 dprintk(ioc, printk(MYIOC_s_ERR_FMT
1524 "scsi_add_host failed\n", ioc->name));
1525 goto out_mptspi_probe;
1526 }
1527
1528 /*
1529 * issue internal bus reset
1530 */
1531 if (ioc->spi_data.bus_reset)
1532 mptscsih_IssueTaskMgmt(hd,
1533 MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
1534 0, 0, 0, 0, 5);
1535
1536 scsi_scan_host(sh);
1537 return 0;
1538
1539 out_mptspi_probe:
1540
1541 mptscsih_remove(pdev);
1542 return error;
1543 }
1544
1545 static void mptspi_remove(struct pci_dev *pdev)
1546 {
1547 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1548
1549 scsi_remove_host(ioc->sh);
1550 mptscsih_remove(pdev);
1551 }
1552
1553 static struct pci_driver mptspi_driver = {
1554 .name = "mptspi",
1555 .id_table = mptspi_pci_table,
1556 .probe = mptspi_probe,
1557 .remove = mptspi_remove,
1558 .shutdown = mptscsih_shutdown,
1559 #ifdef CONFIG_PM
1560 .suspend = mptscsih_suspend,
1561 .resume = mptspi_resume,
1562 #endif
1563 };
1564
1565 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1566 /**
1567 * mptspi_init - Register MPT adapter(s) as SCSI host(s) with SCSI mid-layer.
1568 *
1569 * Returns 0 for success, non-zero for failure.
1570 */
1571 static int __init
1572 mptspi_init(void)
1573 {
1574 int error;
1575
1576 show_mptmod_ver(my_NAME, my_VERSION);
1577
1578 mptspi_transport_template = spi_attach_transport(&mptspi_transport_functions);
1579 if (!mptspi_transport_template)
1580 return -ENODEV;
1581
1582 mptspiDoneCtx = mpt_register(mptscsih_io_done, MPTSPI_DRIVER,
1583 "mptscsih_io_done");
1584 mptspiTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTSPI_DRIVER,
1585 "mptscsih_taskmgmt_complete");
1586 mptspiInternalCtx = mpt_register(mptscsih_scandv_complete,
1587 MPTSPI_DRIVER, "mptscsih_scandv_complete");
1588
1589 mpt_event_register(mptspiDoneCtx, mptspi_event_process);
1590 mpt_reset_register(mptspiDoneCtx, mptspi_ioc_reset);
1591
1592 error = pci_register_driver(&mptspi_driver);
1593 if (error)
1594 spi_release_transport(mptspi_transport_template);
1595
1596 return error;
1597 }
1598
1599 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1600 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1601 /**
1602 * mptspi_exit - Unregisters MPT adapter(s)
1603 */
1604 static void __exit
1605 mptspi_exit(void)
1606 {
1607 pci_unregister_driver(&mptspi_driver);
1608
1609 mpt_reset_deregister(mptspiDoneCtx);
1610 mpt_event_deregister(mptspiDoneCtx);
1611
1612 mpt_deregister(mptspiInternalCtx);
1613 mpt_deregister(mptspiTaskCtx);
1614 mpt_deregister(mptspiDoneCtx);
1615 spi_release_transport(mptspi_transport_template);
1616 }
1617
1618 module_init(mptspi_init);
1619 module_exit(mptspi_exit);
Linux with added FPC-III support