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KVM: nVMX: Fix returned value of MSR_IA32_VMX_VMCS_ENUM
[linux/fpc-iii.git] / drivers / message / fusion / mptspi.c
blob49d11338294bbe31e6e07c1e14aded1670ab733a
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> /* needed for in_interrupt() proto */
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 u16 req_idx;
262 u32 frameOffset;
263 u32 flagsLength;
264 int ii;
265
266 /* Get a MF for this command.
267 */
268 if ((mf = mpt_get_msg_frame(ioc->DoneCtx, ioc)) == NULL) {
269 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT
270 "writeIOCPage4 : no msg frames!\n",ioc->name));
271 return -EAGAIN;
272 }
273
274 /* Set the request and the data pointers.
275 * Place data at end of MF.
276 */
277 pReq = (Config_t *)mf;
278
279 req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
280 frameOffset = ioc->req_sz - sizeof(IOCPage4_t);
281
282 /* Complete the request frame (same for all requests).
283 */
284 pReq->Action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT;
285 pReq->Reserved = 0;
286 pReq->ChainOffset = 0;
287 pReq->Function = MPI_FUNCTION_CONFIG;
288 pReq->ExtPageLength = 0;
289 pReq->ExtPageType = 0;
290 pReq->MsgFlags = 0;
291 for (ii=0; ii < 8; ii++) {
292 pReq->Reserved2[ii] = 0;
293 }
294
295 IOCPage4Ptr = ioc->spi_data.pIocPg4;
296 dataDma = ioc->spi_data.IocPg4_dma;
297 ii = IOCPage4Ptr->ActiveSEP++;
298 IOCPage4Ptr->SEP[ii].SEPTargetID = id;
299 IOCPage4Ptr->SEP[ii].SEPBus = channel;
300 pReq->Header = IOCPage4Ptr->Header;
301 pReq->PageAddress = cpu_to_le32(id | (channel << 8 ));
302
303 /* Add a SGE to the config request.
304 */
305 flagsLength = MPT_SGE_FLAGS_SSIMPLE_WRITE |
306 (IOCPage4Ptr->Header.PageLength + ii) * 4;
307
308 ioc->add_sge((char *)&pReq->PageBufferSGE, flagsLength, dataDma);
309
310 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT
311 "writeIOCPage4: MaxSEP=%d ActiveSEP=%d id=%d bus=%d\n",
312 ioc->name, IOCPage4Ptr->MaxSEP, IOCPage4Ptr->ActiveSEP, id, channel));
313
314 mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
315
316 return 0;
317 }
318
319 /**
320 * mptspi_initTarget - Target, LUN alloc/free functionality.
321 * @hd: Pointer to MPT_SCSI_HOST structure
322 * @vtarget: per target private data
323 * @sdev: SCSI device
324 *
325 * NOTE: It's only SAFE to call this routine if data points to
326 * sane & valid STANDARD INQUIRY data!
327 *
328 * Allocate and initialize memory for this target.
329 * Save inquiry data.
330 *
331 **/
332 static void
333 mptspi_initTarget(MPT_SCSI_HOST *hd, VirtTarget *vtarget,
334 struct scsi_device *sdev)
335 {
336
337 /* Is LUN supported? If so, upper 2 bits will be 0
338 * in first byte of inquiry data.
339 */
340 if (sdev->inq_periph_qual != 0)
341 return;
342
343 if (vtarget == NULL)
344 return;
345
346 vtarget->type = sdev->type;
347
348 if ((sdev->type == TYPE_PROCESSOR) && (hd->ioc->spi_data.Saf_Te)) {
349 /* Treat all Processors as SAF-TE if
350 * command line option is set */
351 vtarget->tflags |= MPT_TARGET_FLAGS_SAF_TE_ISSUED;
352 mptspi_writeIOCPage4(hd, vtarget->channel, vtarget->id);
353 }else if ((sdev->type == TYPE_PROCESSOR) &&
354 !(vtarget->tflags & MPT_TARGET_FLAGS_SAF_TE_ISSUED )) {
355 if (sdev->inquiry_len > 49 ) {
356 if (sdev->inquiry[44] == 'S' &&
357 sdev->inquiry[45] == 'A' &&
358 sdev->inquiry[46] == 'F' &&
359 sdev->inquiry[47] == '-' &&
360 sdev->inquiry[48] == 'T' &&
361 sdev->inquiry[49] == 'E' ) {
362 vtarget->tflags |= MPT_TARGET_FLAGS_SAF_TE_ISSUED;
363 mptspi_writeIOCPage4(hd, vtarget->channel, vtarget->id);
364 }
365 }
366 }
367 mptspi_setTargetNegoParms(hd, vtarget, sdev);
368 }
369
370 /**
371 * mptspi_is_raid - Determines whether target is belonging to volume
372 * @hd: Pointer to a SCSI HOST structure
373 * @id: target device id
374 *
375 * Return:
376 * non-zero = true
377 * zero = false
378 *
379 */
380 static int
381 mptspi_is_raid(struct _MPT_SCSI_HOST *hd, u32 id)
382 {
383 int i, rc = 0;
384 MPT_ADAPTER *ioc = hd->ioc;
385
386 if (!ioc->raid_data.pIocPg2)
387 goto out;
388
389 if (!ioc->raid_data.pIocPg2->NumActiveVolumes)
390 goto out;
391 for (i=0; i < ioc->raid_data.pIocPg2->NumActiveVolumes; i++) {
392 if (ioc->raid_data.pIocPg2->RaidVolume[i].VolumeID == id) {
393 rc = 1;
394 goto out;
395 }
396 }
397
398 out:
399 return rc;
400 }
401
402 static int mptspi_target_alloc(struct scsi_target *starget)
403 {
404 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
405 struct _MPT_SCSI_HOST *hd = shost_priv(shost);
406 VirtTarget *vtarget;
407 MPT_ADAPTER *ioc;
408
409 if (hd == NULL)
410 return -ENODEV;
411
412 ioc = hd->ioc;
413 vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL);
414 if (!vtarget)
415 return -ENOMEM;
416
417 vtarget->ioc_id = ioc->id;
418 vtarget->tflags = MPT_TARGET_FLAGS_Q_YES;
419 vtarget->id = (u8)starget->id;
420 vtarget->channel = (u8)starget->channel;
421 vtarget->starget = starget;
422 starget->hostdata = vtarget;
423
424 if (starget->channel == 1) {
425 if (mptscsih_is_phys_disk(ioc, 0, starget->id) == 0)
426 return 0;
427 vtarget->tflags |= MPT_TARGET_FLAGS_RAID_COMPONENT;
428 /* The real channel for this device is zero */
429 vtarget->channel = 0;
430 /* The actual physdisknum (for RAID passthrough) */
431 vtarget->id = mptscsih_raid_id_to_num(ioc, 0,
432 starget->id);
433 }
434
435 if (starget->channel == 0 &&
436 mptspi_is_raid(hd, starget->id)) {
437 vtarget->raidVolume = 1;
438 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT
439 "RAID Volume @ channel=%d id=%d\n", ioc->name, starget->channel,
440 starget->id));
441 }
442
443 if (ioc->spi_data.nvram &&
444 ioc->spi_data.nvram[starget->id] != MPT_HOST_NVRAM_INVALID) {
445 u32 nvram = ioc->spi_data.nvram[starget->id];
446 spi_min_period(starget) = (nvram & MPT_NVRAM_SYNC_MASK) >> MPT_NVRAM_SYNC_SHIFT;
447 spi_max_width(starget) = nvram & MPT_NVRAM_WIDE_DISABLE ? 0 : 1;
448 } else {
449 spi_min_period(starget) = ioc->spi_data.minSyncFactor;
450 spi_max_width(starget) = ioc->spi_data.maxBusWidth;
451 }
452 spi_max_offset(starget) = ioc->spi_data.maxSyncOffset;
453
454 spi_offset(starget) = 0;
455 spi_period(starget) = 0xFF;
456 mptspi_write_width(starget, 0);
457
458 return 0;
459 }
460
461 static void
462 mptspi_target_destroy(struct scsi_target *starget)
463 {
464 if (starget->hostdata)
465 kfree(starget->hostdata);
466 starget->hostdata = NULL;
467 }
468
469 /**
470 * mptspi_print_write_nego - negotiation parameters debug info that is being sent
471 * @hd: Pointer to a SCSI HOST structure
472 * @starget: SCSI target
473 * @ii: negotiation parameters
474 *
475 */
476 static void
477 mptspi_print_write_nego(struct _MPT_SCSI_HOST *hd, struct scsi_target *starget, u32 ii)
478 {
479 ddvprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "id=%d Requested = 0x%08x"
480 " ( %s factor = 0x%02x @ offset = 0x%02x %s%s%s%s%s%s%s%s)\n",
481 hd->ioc->name, starget->id, ii,
482 ii & MPI_SCSIDEVPAGE0_NP_WIDE ? "Wide ": "",
483 ((ii >> 8) & 0xFF), ((ii >> 16) & 0xFF),
484 ii & MPI_SCSIDEVPAGE0_NP_IU ? "IU ": "",
485 ii & MPI_SCSIDEVPAGE0_NP_DT ? "DT ": "",
486 ii & MPI_SCSIDEVPAGE0_NP_QAS ? "QAS ": "",
487 ii & MPI_SCSIDEVPAGE0_NP_HOLD_MCS ? "HOLDMCS ": "",
488 ii & MPI_SCSIDEVPAGE0_NP_WR_FLOW ? "WRFLOW ": "",
489 ii & MPI_SCSIDEVPAGE0_NP_RD_STRM ? "RDSTRM ": "",
490 ii & MPI_SCSIDEVPAGE0_NP_RTI ? "RTI ": "",
491 ii & MPI_SCSIDEVPAGE0_NP_PCOMP_EN ? "PCOMP ": ""));
492 }
493
494 /**
495 * mptspi_print_read_nego - negotiation parameters debug info that is being read
496 * @hd: Pointer to a SCSI HOST structure
497 * @starget: SCSI target
498 * @ii: negotiation parameters
499 *
500 */
501 static void
502 mptspi_print_read_nego(struct _MPT_SCSI_HOST *hd, struct scsi_target *starget, u32 ii)
503 {
504 ddvprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "id=%d Read = 0x%08x"
505 " ( %s factor = 0x%02x @ offset = 0x%02x %s%s%s%s%s%s%s%s)\n",
506 hd->ioc->name, starget->id, ii,
507 ii & MPI_SCSIDEVPAGE0_NP_WIDE ? "Wide ": "",
508 ((ii >> 8) & 0xFF), ((ii >> 16) & 0xFF),
509 ii & MPI_SCSIDEVPAGE0_NP_IU ? "IU ": "",
510 ii & MPI_SCSIDEVPAGE0_NP_DT ? "DT ": "",
511 ii & MPI_SCSIDEVPAGE0_NP_QAS ? "QAS ": "",
512 ii & MPI_SCSIDEVPAGE0_NP_HOLD_MCS ? "HOLDMCS ": "",
513 ii & MPI_SCSIDEVPAGE0_NP_WR_FLOW ? "WRFLOW ": "",
514 ii & MPI_SCSIDEVPAGE0_NP_RD_STRM ? "RDSTRM ": "",
515 ii & MPI_SCSIDEVPAGE0_NP_RTI ? "RTI ": "",
516 ii & MPI_SCSIDEVPAGE0_NP_PCOMP_EN ? "PCOMP ": ""));
517 }
518
519 static int mptspi_read_spi_device_pg0(struct scsi_target *starget,
520 struct _CONFIG_PAGE_SCSI_DEVICE_0 *pass_pg0)
521 {
522 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
523 struct _MPT_SCSI_HOST *hd = shost_priv(shost);
524 struct _MPT_ADAPTER *ioc = hd->ioc;
525 struct _CONFIG_PAGE_SCSI_DEVICE_0 *spi_dev_pg0;
526 dma_addr_t spi_dev_pg0_dma;
527 int size;
528 struct _x_config_parms cfg;
529 struct _CONFIG_PAGE_HEADER hdr;
530 int err = -EBUSY;
531
532 /* No SPI parameters for RAID devices */
533 if (starget->channel == 0 &&
534 mptspi_is_raid(hd, starget->id))
535 return -1;
536
537 size = ioc->spi_data.sdp0length * 4;
538 /*
539 if (ioc->spi_data.sdp0length & 1)
540 size += size + 4;
541 size += 2048;
542 */
543
544 spi_dev_pg0 = dma_alloc_coherent(&ioc->pcidev->dev, size, &spi_dev_pg0_dma, GFP_KERNEL);
545 if (spi_dev_pg0 == NULL) {
546 starget_printk(KERN_ERR, starget, MYIOC_s_FMT
547 "dma_alloc_coherent for parameters failed\n", ioc->name);
548 return -EINVAL;
549 }
550
551 memset(&hdr, 0, sizeof(hdr));
552
553 hdr.PageVersion = ioc->spi_data.sdp0version;
554 hdr.PageLength = ioc->spi_data.sdp0length;
555 hdr.PageNumber = 0;
556 hdr.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE;
557
558 memset(&cfg, 0, sizeof(cfg));
559
560 cfg.cfghdr.hdr = &hdr;
561 cfg.physAddr = spi_dev_pg0_dma;
562 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
563 cfg.dir = 0;
564 cfg.pageAddr = starget->id;
565 cfg.timeout = 60;
566
567 if (mpt_config(ioc, &cfg)) {
568 starget_printk(KERN_ERR, starget, MYIOC_s_FMT "mpt_config failed\n", ioc->name);
569 goto out_free;
570 }
571 err = 0;
572 memcpy(pass_pg0, spi_dev_pg0, size);
573
574 mptspi_print_read_nego(hd, starget, le32_to_cpu(spi_dev_pg0->NegotiatedParameters));
575
576 out_free:
577 dma_free_coherent(&ioc->pcidev->dev, size, spi_dev_pg0, spi_dev_pg0_dma);
578 return err;
579 }
580
581 static u32 mptspi_getRP(struct scsi_target *starget)
582 {
583 u32 nego = 0;
584
585 nego |= spi_iu(starget) ? MPI_SCSIDEVPAGE1_RP_IU : 0;
586 nego |= spi_dt(starget) ? MPI_SCSIDEVPAGE1_RP_DT : 0;
587 nego |= spi_qas(starget) ? MPI_SCSIDEVPAGE1_RP_QAS : 0;
588 nego |= spi_hold_mcs(starget) ? MPI_SCSIDEVPAGE1_RP_HOLD_MCS : 0;
589 nego |= spi_wr_flow(starget) ? MPI_SCSIDEVPAGE1_RP_WR_FLOW : 0;
590 nego |= spi_rd_strm(starget) ? MPI_SCSIDEVPAGE1_RP_RD_STRM : 0;
591 nego |= spi_rti(starget) ? MPI_SCSIDEVPAGE1_RP_RTI : 0;
592 nego |= spi_pcomp_en(starget) ? MPI_SCSIDEVPAGE1_RP_PCOMP_EN : 0;
593
594 nego |= (spi_period(starget) << MPI_SCSIDEVPAGE1_RP_SHIFT_MIN_SYNC_PERIOD) & MPI_SCSIDEVPAGE1_RP_MIN_SYNC_PERIOD_MASK;
595 nego |= (spi_offset(starget) << MPI_SCSIDEVPAGE1_RP_SHIFT_MAX_SYNC_OFFSET) & MPI_SCSIDEVPAGE1_RP_MAX_SYNC_OFFSET_MASK;
596 nego |= spi_width(starget) ? MPI_SCSIDEVPAGE1_RP_WIDE : 0;
597
598 return nego;
599 }
600
601 static void mptspi_read_parameters(struct scsi_target *starget)
602 {
603 int nego;
604 struct _CONFIG_PAGE_SCSI_DEVICE_0 spi_dev_pg0;
605
606 mptspi_read_spi_device_pg0(starget, &spi_dev_pg0);
607
608 nego = le32_to_cpu(spi_dev_pg0.NegotiatedParameters);
609
610 spi_iu(starget) = (nego & MPI_SCSIDEVPAGE0_NP_IU) ? 1 : 0;
611 spi_dt(starget) = (nego & MPI_SCSIDEVPAGE0_NP_DT) ? 1 : 0;
612 spi_qas(starget) = (nego & MPI_SCSIDEVPAGE0_NP_QAS) ? 1 : 0;
613 spi_wr_flow(starget) = (nego & MPI_SCSIDEVPAGE0_NP_WR_FLOW) ? 1 : 0;
614 spi_rd_strm(starget) = (nego & MPI_SCSIDEVPAGE0_NP_RD_STRM) ? 1 : 0;
615 spi_rti(starget) = (nego & MPI_SCSIDEVPAGE0_NP_RTI) ? 1 : 0;
616 spi_pcomp_en(starget) = (nego & MPI_SCSIDEVPAGE0_NP_PCOMP_EN) ? 1 : 0;
617 spi_hold_mcs(starget) = (nego & MPI_SCSIDEVPAGE0_NP_HOLD_MCS) ? 1 : 0;
618 spi_period(starget) = (nego & MPI_SCSIDEVPAGE0_NP_NEG_SYNC_PERIOD_MASK) >> MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_PERIOD;
619 spi_offset(starget) = (nego & MPI_SCSIDEVPAGE0_NP_NEG_SYNC_OFFSET_MASK) >> MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_OFFSET;
620 spi_width(starget) = (nego & MPI_SCSIDEVPAGE0_NP_WIDE) ? 1 : 0;
621 }
622
623 int
624 mptscsih_quiesce_raid(MPT_SCSI_HOST *hd, int quiesce, u8 channel, u8 id)
625 {
626 MPT_ADAPTER *ioc = hd->ioc;
627 MpiRaidActionRequest_t *pReq;
628 MPT_FRAME_HDR *mf;
629 int ret;
630 unsigned long timeleft;
631
632 mutex_lock(&ioc->internal_cmds.mutex);
633
634 /* Get and Populate a free Frame
635 */
636 if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
637 dfailprintk(hd->ioc, printk(MYIOC_s_WARN_FMT
638 "%s: no msg frames!\n", ioc->name, __func__));
639 ret = -EAGAIN;
640 goto out;
641 }
642 pReq = (MpiRaidActionRequest_t *)mf;
643 if (quiesce)
644 pReq->Action = MPI_RAID_ACTION_QUIESCE_PHYS_IO;
645 else
646 pReq->Action = MPI_RAID_ACTION_ENABLE_PHYS_IO;
647 pReq->Reserved1 = 0;
648 pReq->ChainOffset = 0;
649 pReq->Function = MPI_FUNCTION_RAID_ACTION;
650 pReq->VolumeID = id;
651 pReq->VolumeBus = channel;
652 pReq->PhysDiskNum = 0;
653 pReq->MsgFlags = 0;
654 pReq->Reserved2 = 0;
655 pReq->ActionDataWord = 0; /* Reserved for this action */
656
657 ioc->add_sge((char *)&pReq->ActionDataSGE,
658 MPT_SGE_FLAGS_SSIMPLE_READ | 0, (dma_addr_t) -1);
659
660 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "RAID Volume action=%x channel=%d id=%d\n",
661 ioc->name, pReq->Action, channel, id));
662
663 INITIALIZE_MGMT_STATUS(ioc->internal_cmds.status)
664 mpt_put_msg_frame(ioc->InternalCtx, ioc, mf);
665 timeleft = wait_for_completion_timeout(&ioc->internal_cmds.done, 10*HZ);
666 if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
667 ret = -ETIME;
668 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: TIMED OUT!\n",
669 ioc->name, __func__));
670 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET)
671 goto out;
672 if (!timeleft) {
673 printk(MYIOC_s_WARN_FMT "Issuing Reset from %s!!\n",
674 ioc->name, __func__);
675 mpt_HardResetHandler(ioc, CAN_SLEEP);
676 mpt_free_msg_frame(ioc, mf);
677 }
678 goto out;
679 }
680
681 ret = ioc->internal_cmds.completion_code;
682
683 out:
684 CLEAR_MGMT_STATUS(ioc->internal_cmds.status)
685 mutex_unlock(&ioc->internal_cmds.mutex);
686 return ret;
687 }
688
689 static void mptspi_dv_device(struct _MPT_SCSI_HOST *hd,
690 struct scsi_device *sdev)
691 {
692 VirtTarget *vtarget = scsi_target(sdev)->hostdata;
693 MPT_ADAPTER *ioc = hd->ioc;
694
695 /* no DV on RAID devices */
696 if (sdev->channel == 0 &&
697 mptspi_is_raid(hd, sdev->id))
698 return;
699
700 /* If this is a piece of a RAID, then quiesce first */
701 if (sdev->channel == 1 &&
702 mptscsih_quiesce_raid(hd, 1, vtarget->channel, vtarget->id) < 0) {
703 starget_printk(KERN_ERR, scsi_target(sdev), MYIOC_s_FMT
704 "Integrated RAID quiesce failed\n", ioc->name);
705 return;
706 }
707
708 hd->spi_pending |= (1 << sdev->id);
709 spi_dv_device(sdev);
710 hd->spi_pending &= ~(1 << sdev->id);
711
712 if (sdev->channel == 1 &&
713 mptscsih_quiesce_raid(hd, 0, vtarget->channel, vtarget->id) < 0)
714 starget_printk(KERN_ERR, scsi_target(sdev), MYIOC_s_FMT
715 "Integrated RAID resume failed\n", ioc->name);
716
717 mptspi_read_parameters(sdev->sdev_target);
718 spi_display_xfer_agreement(sdev->sdev_target);
719 mptspi_read_parameters(sdev->sdev_target);
720 }
721
722 static int mptspi_slave_alloc(struct scsi_device *sdev)
723 {
724 MPT_SCSI_HOST *hd = shost_priv(sdev->host);
725 VirtTarget *vtarget;
726 VirtDevice *vdevice;
727 struct scsi_target *starget;
728 MPT_ADAPTER *ioc = hd->ioc;
729
730 if (sdev->channel == 1 &&
731 mptscsih_is_phys_disk(ioc, 0, sdev->id) == 0)
732 return -ENXIO;
733
734 vdevice = kzalloc(sizeof(VirtDevice), GFP_KERNEL);
735 if (!vdevice) {
736 printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n",
737 ioc->name, sizeof(VirtDevice));
738 return -ENOMEM;
739 }
740
741 vdevice->lun = sdev->lun;
742 sdev->hostdata = vdevice;
743
744 starget = scsi_target(sdev);
745 vtarget = starget->hostdata;
746 vdevice->vtarget = vtarget;
747 vtarget->num_luns++;
748
749 if (sdev->channel == 1)
750 sdev->no_uld_attach = 1;
751
752 return 0;
753 }
754
755 static int mptspi_slave_configure(struct scsi_device *sdev)
756 {
757 struct _MPT_SCSI_HOST *hd = shost_priv(sdev->host);
758 VirtTarget *vtarget = scsi_target(sdev)->hostdata;
759 int ret;
760
761 mptspi_initTarget(hd, vtarget, sdev);
762
763 ret = mptscsih_slave_configure(sdev);
764
765 if (ret)
766 return ret;
767
768 ddvprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "id=%d min_period=0x%02x"
769 " max_offset=0x%02x max_width=%d\n", hd->ioc->name,
770 sdev->id, spi_min_period(scsi_target(sdev)),
771 spi_max_offset(scsi_target(sdev)),
772 spi_max_width(scsi_target(sdev))));
773
774 if ((sdev->channel == 1 ||
775 !(mptspi_is_raid(hd, sdev->id))) &&
776 !spi_initial_dv(sdev->sdev_target))
777 mptspi_dv_device(hd, sdev);
778
779 return 0;
780 }
781
782 static int
783 mptspi_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *SCpnt)
784 {
785 struct _MPT_SCSI_HOST *hd = shost_priv(shost);
786 VirtDevice *vdevice = SCpnt->device->hostdata;
787 MPT_ADAPTER *ioc = hd->ioc;
788
789 if (!vdevice || !vdevice->vtarget) {
790 SCpnt->result = DID_NO_CONNECT << 16;
791 SCpnt->scsi_done(SCpnt);
792 return 0;
793 }
794
795 if (SCpnt->device->channel == 1 &&
796 mptscsih_is_phys_disk(ioc, 0, SCpnt->device->id) == 0) {
797 SCpnt->result = DID_NO_CONNECT << 16;
798 SCpnt->scsi_done(SCpnt);
799 return 0;
800 }
801
802 if (spi_dv_pending(scsi_target(SCpnt->device)))
803 ddvprintk(ioc, scsi_print_command(SCpnt));
804
805 return mptscsih_qcmd(SCpnt);
806 }
807
808 static void mptspi_slave_destroy(struct scsi_device *sdev)
809 {
810 struct scsi_target *starget = scsi_target(sdev);
811 VirtTarget *vtarget = starget->hostdata;
812 VirtDevice *vdevice = sdev->hostdata;
813
814 /* Will this be the last lun on a non-raid device? */
815 if (vtarget->num_luns == 1 && vdevice->configured_lun) {
816 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
817
818 /* Async Narrow */
819 pg1.RequestedParameters = 0;
820 pg1.Reserved = 0;
821 pg1.Configuration = 0;
822
823 mptspi_write_spi_device_pg1(starget, &pg1);
824 }
825
826 mptscsih_slave_destroy(sdev);
827 }
828
829 static struct scsi_host_template mptspi_driver_template = {
830 .module = THIS_MODULE,
831 .proc_name = "mptspi",
832 .show_info = mptscsih_show_info,
833 .name = "MPT SPI Host",
834 .info = mptscsih_info,
835 .queuecommand = mptspi_qcmd,
836 .target_alloc = mptspi_target_alloc,
837 .slave_alloc = mptspi_slave_alloc,
838 .slave_configure = mptspi_slave_configure,
839 .target_destroy = mptspi_target_destroy,
840 .slave_destroy = mptspi_slave_destroy,
841 .change_queue_depth = mptscsih_change_queue_depth,
842 .eh_abort_handler = mptscsih_abort,
843 .eh_device_reset_handler = mptscsih_dev_reset,
844 .eh_bus_reset_handler = mptscsih_bus_reset,
845 .eh_host_reset_handler = mptscsih_host_reset,
846 .bios_param = mptscsih_bios_param,
847 .can_queue = MPT_SCSI_CAN_QUEUE,
848 .this_id = -1,
849 .sg_tablesize = MPT_SCSI_SG_DEPTH,
850 .max_sectors = 8192,
851 .cmd_per_lun = 7,
852 .use_clustering = ENABLE_CLUSTERING,
853 .shost_attrs = mptscsih_host_attrs,
854 };
855
856 static int mptspi_write_spi_device_pg1(struct scsi_target *starget,
857 struct _CONFIG_PAGE_SCSI_DEVICE_1 *pass_pg1)
858 {
859 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
860 struct _MPT_SCSI_HOST *hd = shost_priv(shost);
861 struct _MPT_ADAPTER *ioc = hd->ioc;
862 struct _CONFIG_PAGE_SCSI_DEVICE_1 *pg1;
863 dma_addr_t pg1_dma;
864 int size;
865 struct _x_config_parms cfg;
866 struct _CONFIG_PAGE_HEADER hdr;
867 int err = -EBUSY;
868 u32 nego_parms;
869 u32 period;
870 struct scsi_device *sdev;
871 int i;
872
873 /* don't allow updating nego parameters on RAID devices */
874 if (starget->channel == 0 &&
875 mptspi_is_raid(hd, starget->id))
876 return -1;
877
878 size = ioc->spi_data.sdp1length * 4;
879
880 pg1 = dma_alloc_coherent(&ioc->pcidev->dev, size, &pg1_dma, GFP_KERNEL);
881 if (pg1 == NULL) {
882 starget_printk(KERN_ERR, starget, MYIOC_s_FMT
883 "dma_alloc_coherent for parameters failed\n", ioc->name);
884 return -EINVAL;
885 }
886
887 memset(&hdr, 0, sizeof(hdr));
888
889 hdr.PageVersion = ioc->spi_data.sdp1version;
890 hdr.PageLength = ioc->spi_data.sdp1length;
891 hdr.PageNumber = 1;
892 hdr.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE;
893
894 memset(&cfg, 0, sizeof(cfg));
895
896 cfg.cfghdr.hdr = &hdr;
897 cfg.physAddr = pg1_dma;
898 cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT;
899 cfg.dir = 1;
900 cfg.pageAddr = starget->id;
901
902 memcpy(pg1, pass_pg1, size);
903
904 pg1->Header.PageVersion = hdr.PageVersion;
905 pg1->Header.PageLength = hdr.PageLength;
906 pg1->Header.PageNumber = hdr.PageNumber;
907 pg1->Header.PageType = hdr.PageType;
908
909 nego_parms = le32_to_cpu(pg1->RequestedParameters);
910 period = (nego_parms & MPI_SCSIDEVPAGE1_RP_MIN_SYNC_PERIOD_MASK) >>
911 MPI_SCSIDEVPAGE1_RP_SHIFT_MIN_SYNC_PERIOD;
912 if (period == 8) {
913 /* Turn on inline data padding for TAPE when running U320 */
914 for (i = 0 ; i < 16; i++) {
915 sdev = scsi_device_lookup_by_target(starget, i);
916 if (sdev && sdev->type == TYPE_TAPE) {
917 sdev_printk(KERN_DEBUG, sdev, MYIOC_s_FMT
918 "IDP:ON\n", ioc->name);
919 nego_parms |= MPI_SCSIDEVPAGE1_RP_IDP;
920 pg1->RequestedParameters =
921 cpu_to_le32(nego_parms);
922 break;
923 }
924 }
925 }
926
927 mptspi_print_write_nego(hd, starget, le32_to_cpu(pg1->RequestedParameters));
928
929 if (mpt_config(ioc, &cfg)) {
930 starget_printk(KERN_ERR, starget, MYIOC_s_FMT
931 "mpt_config failed\n", ioc->name);
932 goto out_free;
933 }
934 err = 0;
935
936 out_free:
937 dma_free_coherent(&ioc->pcidev->dev, size, pg1, pg1_dma);
938 return err;
939 }
940
941 static void mptspi_write_offset(struct scsi_target *starget, int offset)
942 {
943 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
944 u32 nego;
945
946 if (offset < 0)
947 offset = 0;
948
949 if (offset > 255)
950 offset = 255;
951
952 if (spi_offset(starget) == -1)
953 mptspi_read_parameters(starget);
954
955 spi_offset(starget) = offset;
956
957 nego = mptspi_getRP(starget);
958
959 pg1.RequestedParameters = cpu_to_le32(nego);
960 pg1.Reserved = 0;
961 pg1.Configuration = 0;
962
963 mptspi_write_spi_device_pg1(starget, &pg1);
964 }
965
966 static void mptspi_write_period(struct scsi_target *starget, int period)
967 {
968 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
969 u32 nego;
970
971 if (period < 8)
972 period = 8;
973
974 if (period > 255)
975 period = 255;
976
977 if (spi_period(starget) == -1)
978 mptspi_read_parameters(starget);
979
980 if (period == 8) {
981 spi_iu(starget) = 1;
982 spi_dt(starget) = 1;
983 } else if (period == 9) {
984 spi_dt(starget) = 1;
985 }
986
987 spi_period(starget) = period;
988
989 nego = mptspi_getRP(starget);
990
991 pg1.RequestedParameters = cpu_to_le32(nego);
992 pg1.Reserved = 0;
993 pg1.Configuration = 0;
994
995 mptspi_write_spi_device_pg1(starget, &pg1);
996 }
997
998 static void mptspi_write_dt(struct scsi_target *starget, int dt)
999 {
1000 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
1001 u32 nego;
1002
1003 if (spi_period(starget) == -1)
1004 mptspi_read_parameters(starget);
1005
1006 if (!dt && spi_period(starget) < 10)
1007 spi_period(starget) = 10;
1008
1009 spi_dt(starget) = dt;
1010
1011 nego = mptspi_getRP(starget);
1012
1013
1014 pg1.RequestedParameters = cpu_to_le32(nego);
1015 pg1.Reserved = 0;
1016 pg1.Configuration = 0;
1017
1018 mptspi_write_spi_device_pg1(starget, &pg1);
1019 }
1020
1021 static void mptspi_write_iu(struct scsi_target *starget, int iu)
1022 {
1023 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
1024 u32 nego;
1025
1026 if (spi_period(starget) == -1)
1027 mptspi_read_parameters(starget);
1028
1029 if (!iu && spi_period(starget) < 9)
1030 spi_period(starget) = 9;
1031
1032 spi_iu(starget) = iu;
1033
1034 nego = mptspi_getRP(starget);
1035
1036 pg1.RequestedParameters = cpu_to_le32(nego);
1037 pg1.Reserved = 0;
1038 pg1.Configuration = 0;
1039
1040 mptspi_write_spi_device_pg1(starget, &pg1);
1041 }
1042
1043 #define MPTSPI_SIMPLE_TRANSPORT_PARM(parm) \
1044 static void mptspi_write_##parm(struct scsi_target *starget, int parm)\
1045 { \
1046 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; \
1047 u32 nego; \
1048 \
1049 spi_##parm(starget) = parm; \
1050 \
1051 nego = mptspi_getRP(starget); \
1052 \
1053 pg1.RequestedParameters = cpu_to_le32(nego); \
1054 pg1.Reserved = 0; \
1055 pg1.Configuration = 0; \
1056 \
1057 mptspi_write_spi_device_pg1(starget, &pg1); \
1058 }
1059
1060 MPTSPI_SIMPLE_TRANSPORT_PARM(rd_strm)
1061 MPTSPI_SIMPLE_TRANSPORT_PARM(wr_flow)
1062 MPTSPI_SIMPLE_TRANSPORT_PARM(rti)
1063 MPTSPI_SIMPLE_TRANSPORT_PARM(hold_mcs)
1064 MPTSPI_SIMPLE_TRANSPORT_PARM(pcomp_en)
1065
1066 static void mptspi_write_qas(struct scsi_target *starget, int qas)
1067 {
1068 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
1069 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
1070 struct _MPT_SCSI_HOST *hd = shost_priv(shost);
1071 VirtTarget *vtarget = starget->hostdata;
1072 u32 nego;
1073
1074 if ((vtarget->negoFlags & MPT_TARGET_NO_NEGO_QAS) ||
1075 hd->ioc->spi_data.noQas)
1076 spi_qas(starget) = 0;
1077 else
1078 spi_qas(starget) = qas;
1079
1080 nego = mptspi_getRP(starget);
1081
1082 pg1.RequestedParameters = cpu_to_le32(nego);
1083 pg1.Reserved = 0;
1084 pg1.Configuration = 0;
1085
1086 mptspi_write_spi_device_pg1(starget, &pg1);
1087 }
1088
1089 static void mptspi_write_width(struct scsi_target *starget, int width)
1090 {
1091 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
1092 u32 nego;
1093
1094 if (!width) {
1095 spi_dt(starget) = 0;
1096 if (spi_period(starget) < 10)
1097 spi_period(starget) = 10;
1098 }
1099
1100 spi_width(starget) = width;
1101
1102 nego = mptspi_getRP(starget);
1103
1104 pg1.RequestedParameters = cpu_to_le32(nego);
1105 pg1.Reserved = 0;
1106 pg1.Configuration = 0;
1107
1108 mptspi_write_spi_device_pg1(starget, &pg1);
1109 }
1110
1111 struct work_queue_wrapper {
1112 struct work_struct work;
1113 struct _MPT_SCSI_HOST *hd;
1114 int disk;
1115 };
1116
1117 static void mpt_work_wrapper(struct work_struct *work)
1118 {
1119 struct work_queue_wrapper *wqw =
1120 container_of(work, struct work_queue_wrapper, work);
1121 struct _MPT_SCSI_HOST *hd = wqw->hd;
1122 MPT_ADAPTER *ioc = hd->ioc;
1123 struct Scsi_Host *shost = ioc->sh;
1124 struct scsi_device *sdev;
1125 int disk = wqw->disk;
1126 struct _CONFIG_PAGE_IOC_3 *pg3;
1127
1128 kfree(wqw);
1129
1130 mpt_findImVolumes(ioc);
1131 pg3 = ioc->raid_data.pIocPg3;
1132 if (!pg3)
1133 return;
1134
1135 shost_for_each_device(sdev,shost) {
1136 struct scsi_target *starget = scsi_target(sdev);
1137 VirtTarget *vtarget = starget->hostdata;
1138
1139 /* only want to search RAID components */
1140 if (sdev->channel != 1)
1141 continue;
1142
1143 /* The id is the raid PhysDiskNum, even if
1144 * starget->id is the actual target address */
1145 if(vtarget->id != disk)
1146 continue;
1147
1148 starget_printk(KERN_INFO, vtarget->starget, MYIOC_s_FMT
1149 "Integrated RAID requests DV of new device\n", ioc->name);
1150 mptspi_dv_device(hd, sdev);
1151 }
1152 shost_printk(KERN_INFO, shost, MYIOC_s_FMT
1153 "Integrated RAID detects new device %d\n", ioc->name, disk);
1154 scsi_scan_target(&ioc->sh->shost_gendev, 1, disk, 0, 1);
1155 }
1156
1157
1158 static void mpt_dv_raid(struct _MPT_SCSI_HOST *hd, int disk)
1159 {
1160 struct work_queue_wrapper *wqw = kmalloc(sizeof(*wqw), GFP_ATOMIC);
1161 MPT_ADAPTER *ioc = hd->ioc;
1162
1163 if (!wqw) {
1164 shost_printk(KERN_ERR, ioc->sh, MYIOC_s_FMT
1165 "Failed to act on RAID event for physical disk %d\n",
1166 ioc->name, disk);
1167 return;
1168 }
1169 INIT_WORK(&wqw->work, mpt_work_wrapper);
1170 wqw->hd = hd;
1171 wqw->disk = disk;
1172
1173 schedule_work(&wqw->work);
1174 }
1175
1176 static int
1177 mptspi_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
1178 {
1179 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
1180 struct _MPT_SCSI_HOST *hd = shost_priv(ioc->sh);
1181
1182 if (ioc->bus_type != SPI)
1183 return 0;
1184
1185 if (hd && event == MPI_EVENT_INTEGRATED_RAID) {
1186 int reason
1187 = (le32_to_cpu(pEvReply->Data[0]) & 0x00FF0000) >> 16;
1188
1189 if (reason == MPI_EVENT_RAID_RC_DOMAIN_VAL_NEEDED) {
1190 int disk = (le32_to_cpu(pEvReply->Data[0]) & 0xFF000000) >> 24;
1191 mpt_dv_raid(hd, disk);
1192 }
1193 }
1194 return mptscsih_event_process(ioc, pEvReply);
1195 }
1196
1197 static int
1198 mptspi_deny_binding(struct scsi_target *starget)
1199 {
1200 struct _MPT_SCSI_HOST *hd =
1201 (struct _MPT_SCSI_HOST *)dev_to_shost(starget->dev.parent)->hostdata;
1202 return ((mptspi_is_raid(hd, starget->id)) &&
1203 starget->channel == 0) ? 1 : 0;
1204 }
1205
1206 static struct spi_function_template mptspi_transport_functions = {
1207 .get_offset = mptspi_read_parameters,
1208 .set_offset = mptspi_write_offset,
1209 .show_offset = 1,
1210 .get_period = mptspi_read_parameters,
1211 .set_period = mptspi_write_period,
1212 .show_period = 1,
1213 .get_width = mptspi_read_parameters,
1214 .set_width = mptspi_write_width,
1215 .show_width = 1,
1216 .get_iu = mptspi_read_parameters,
1217 .set_iu = mptspi_write_iu,
1218 .show_iu = 1,
1219 .get_dt = mptspi_read_parameters,
1220 .set_dt = mptspi_write_dt,
1221 .show_dt = 1,
1222 .get_qas = mptspi_read_parameters,
1223 .set_qas = mptspi_write_qas,
1224 .show_qas = 1,
1225 .get_wr_flow = mptspi_read_parameters,
1226 .set_wr_flow = mptspi_write_wr_flow,
1227 .show_wr_flow = 1,
1228 .get_rd_strm = mptspi_read_parameters,
1229 .set_rd_strm = mptspi_write_rd_strm,
1230 .show_rd_strm = 1,
1231 .get_rti = mptspi_read_parameters,
1232 .set_rti = mptspi_write_rti,
1233 .show_rti = 1,
1234 .get_pcomp_en = mptspi_read_parameters,
1235 .set_pcomp_en = mptspi_write_pcomp_en,
1236 .show_pcomp_en = 1,
1237 .get_hold_mcs = mptspi_read_parameters,
1238 .set_hold_mcs = mptspi_write_hold_mcs,
1239 .show_hold_mcs = 1,
1240 .deny_binding = mptspi_deny_binding,
1241 };
1242
1243 /****************************************************************************
1244 * Supported hardware
1245 */
1246
1247 static struct pci_device_id mptspi_pci_table[] = {
1248 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_53C1030,
1249 PCI_ANY_ID, PCI_ANY_ID },
1250 { PCI_VENDOR_ID_ATTO, MPI_MANUFACTPAGE_DEVID_53C1030,
1251 PCI_ANY_ID, PCI_ANY_ID },
1252 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_53C1035,
1253 PCI_ANY_ID, PCI_ANY_ID },
1254 {0} /* Terminating entry */
1255 };
1256 MODULE_DEVICE_TABLE(pci, mptspi_pci_table);
1257
1258
1259 /*
1260 * renegotiate for a given target
1261 */
1262 static void
1263 mptspi_dv_renegotiate_work(struct work_struct *work)
1264 {
1265 struct work_queue_wrapper *wqw =
1266 container_of(work, struct work_queue_wrapper, work);
1267 struct _MPT_SCSI_HOST *hd = wqw->hd;
1268 struct scsi_device *sdev;
1269 struct scsi_target *starget;
1270 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
1271 u32 nego;
1272 MPT_ADAPTER *ioc = hd->ioc;
1273
1274 kfree(wqw);
1275
1276 if (hd->spi_pending) {
1277 shost_for_each_device(sdev, ioc->sh) {
1278 if (hd->spi_pending & (1 << sdev->id))
1279 continue;
1280 starget = scsi_target(sdev);
1281 nego = mptspi_getRP(starget);
1282 pg1.RequestedParameters = cpu_to_le32(nego);
1283 pg1.Reserved = 0;
1284 pg1.Configuration = 0;
1285 mptspi_write_spi_device_pg1(starget, &pg1);
1286 }
1287 } else {
1288 shost_for_each_device(sdev, ioc->sh)
1289 mptspi_dv_device(hd, sdev);
1290 }
1291 }
1292
1293 static void
1294 mptspi_dv_renegotiate(struct _MPT_SCSI_HOST *hd)
1295 {
1296 struct work_queue_wrapper *wqw = kmalloc(sizeof(*wqw), GFP_ATOMIC);
1297
1298 if (!wqw)
1299 return;
1300
1301 INIT_WORK(&wqw->work, mptspi_dv_renegotiate_work);
1302 wqw->hd = hd;
1303
1304 schedule_work(&wqw->work);
1305 }
1306
1307 /*
1308 * spi module reset handler
1309 */
1310 static int
1311 mptspi_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
1312 {
1313 int rc;
1314
1315 rc = mptscsih_ioc_reset(ioc, reset_phase);
1316 if ((ioc->bus_type != SPI) || (!rc))
1317 return rc;
1318
1319 /* only try to do a renegotiation if we're properly set up
1320 * if we get an ioc fault on bringup, ioc->sh will be NULL */
1321 if (reset_phase == MPT_IOC_POST_RESET &&
1322 ioc->sh) {
1323 struct _MPT_SCSI_HOST *hd = shost_priv(ioc->sh);
1324
1325 mptspi_dv_renegotiate(hd);
1326 }
1327
1328 return rc;
1329 }
1330
1331 #ifdef CONFIG_PM
1332 /*
1333 * spi module resume handler
1334 */
1335 static int
1336 mptspi_resume(struct pci_dev *pdev)
1337 {
1338 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1339 struct _MPT_SCSI_HOST *hd = shost_priv(ioc->sh);
1340 int rc;
1341
1342 rc = mptscsih_resume(pdev);
1343 mptspi_dv_renegotiate(hd);
1344
1345 return rc;
1346 }
1347 #endif
1348
1349 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1350 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1351 /*
1352 * mptspi_probe - Installs scsi devices per bus.
1353 * @pdev: Pointer to pci_dev structure
1354 *
1355 * Returns 0 for success, non-zero for failure.
1356 *
1357 */
1358 static int
1359 mptspi_probe(struct pci_dev *pdev, const struct pci_device_id *id)
1360 {
1361 struct Scsi_Host *sh;
1362 MPT_SCSI_HOST *hd;
1363 MPT_ADAPTER *ioc;
1364 unsigned long flags;
1365 int ii;
1366 int numSGE = 0;
1367 int scale;
1368 int ioc_cap;
1369 int error=0;
1370 int r;
1371
1372 if ((r = mpt_attach(pdev,id)) != 0)
1373 return r;
1374
1375 ioc = pci_get_drvdata(pdev);
1376 ioc->DoneCtx = mptspiDoneCtx;
1377 ioc->TaskCtx = mptspiTaskCtx;
1378 ioc->InternalCtx = mptspiInternalCtx;
1379
1380 /* Added sanity check on readiness of the MPT adapter.
1381 */
1382 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) {
1383 printk(MYIOC_s_WARN_FMT
1384 "Skipping because it's not operational!\n",
1385 ioc->name);
1386 error = -ENODEV;
1387 goto out_mptspi_probe;
1388 }
1389
1390 if (!ioc->active) {
1391 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n",
1392 ioc->name);
1393 error = -ENODEV;
1394 goto out_mptspi_probe;
1395 }
1396
1397 /* Sanity check - ensure at least 1 port is INITIATOR capable
1398 */
1399 ioc_cap = 0;
1400 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1401 if (ioc->pfacts[ii].ProtocolFlags &
1402 MPI_PORTFACTS_PROTOCOL_INITIATOR)
1403 ioc_cap ++;
1404 }
1405
1406 if (!ioc_cap) {
1407 printk(MYIOC_s_WARN_FMT
1408 "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n",
1409 ioc->name, ioc);
1410 return 0;
1411 }
1412
1413 sh = scsi_host_alloc(&mptspi_driver_template, sizeof(MPT_SCSI_HOST));
1414
1415 if (!sh) {
1416 printk(MYIOC_s_WARN_FMT
1417 "Unable to register controller with SCSI subsystem\n",
1418 ioc->name);
1419 error = -1;
1420 goto out_mptspi_probe;
1421 }
1422
1423 spin_lock_irqsave(&ioc->FreeQlock, flags);
1424
1425 /* Attach the SCSI Host to the IOC structure
1426 */
1427 ioc->sh = sh;
1428
1429 sh->io_port = 0;
1430 sh->n_io_port = 0;
1431 sh->irq = 0;
1432
1433 /* set 16 byte cdb's */
1434 sh->max_cmd_len = 16;
1435
1436 /* Yikes! This is important!
1437 * Otherwise, by default, linux
1438 * only scans target IDs 0-7!
1439 * pfactsN->MaxDevices unreliable
1440 * (not supported in early
1441 * versions of the FW).
1442 * max_id = 1 + actual max id,
1443 * max_lun = 1 + actual last lun,
1444 * see hosts.h :o(
1445 */
1446 sh->max_id = ioc->devices_per_bus;
1447
1448 sh->max_lun = MPT_LAST_LUN + 1;
1449 /*
1450 * If RAID Firmware Detected, setup virtual channel
1451 */
1452 if (ioc->ir_firmware)
1453 sh->max_channel = 1;
1454 else
1455 sh->max_channel = 0;
1456 sh->this_id = ioc->pfacts[0].PortSCSIID;
1457
1458 /* Required entry.
1459 */
1460 sh->unique_id = ioc->id;
1461
1462 /* Verify that we won't exceed the maximum
1463 * number of chain buffers
1464 * We can optimize: ZZ = req_sz/sizeof(SGE)
1465 * For 32bit SGE's:
1466 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ
1467 * + (req_sz - 64)/sizeof(SGE)
1468 * A slightly different algorithm is required for
1469 * 64bit SGEs.
1470 */
1471 scale = ioc->req_sz/ioc->SGE_size;
1472 if (ioc->sg_addr_size == sizeof(u64)) {
1473 numSGE = (scale - 1) *
1474 (ioc->facts.MaxChainDepth-1) + scale +
1475 (ioc->req_sz - 60) / ioc->SGE_size;
1476 } else {
1477 numSGE = 1 + (scale - 1) *
1478 (ioc->facts.MaxChainDepth-1) + scale +
1479 (ioc->req_sz - 64) / ioc->SGE_size;
1480 }
1481
1482 if (numSGE < sh->sg_tablesize) {
1483 /* Reset this value */
1484 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1485 "Resetting sg_tablesize to %d from %d\n",
1486 ioc->name, numSGE, sh->sg_tablesize));
1487 sh->sg_tablesize = numSGE;
1488 }
1489
1490 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1491
1492 hd = shost_priv(sh);
1493 hd->ioc = ioc;
1494
1495 /* SCSI needs scsi_cmnd lookup table!
1496 * (with size equal to req_depth*PtrSz!)
1497 */
1498 ioc->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC);
1499 if (!ioc->ScsiLookup) {
1500 error = -ENOMEM;
1501 goto out_mptspi_probe;
1502 }
1503 spin_lock_init(&ioc->scsi_lookup_lock);
1504
1505 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScsiLookup @ %p\n",
1506 ioc->name, ioc->ScsiLookup));
1507
1508 ioc->spi_data.Saf_Te = mpt_saf_te;
1509 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1510 "saf_te %x\n",
1511 ioc->name,
1512 mpt_saf_te));
1513 ioc->spi_data.noQas = 0;
1514
1515 hd->last_queue_full = 0;
1516 hd->spi_pending = 0;
1517
1518 /* Some versions of the firmware don't support page 0; without
1519 * that we can't get the parameters */
1520 if (ioc->spi_data.sdp0length != 0)
1521 sh->transportt = mptspi_transport_template;
1522
1523 error = scsi_add_host (sh, &ioc->pcidev->dev);
1524 if(error) {
1525 dprintk(ioc, printk(MYIOC_s_ERR_FMT
1526 "scsi_add_host failed\n", ioc->name));
1527 goto out_mptspi_probe;
1528 }
1529
1530 /*
1531 * issue internal bus reset
1532 */
1533 if (ioc->spi_data.bus_reset)
1534 mptscsih_IssueTaskMgmt(hd,
1535 MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
1536 0, 0, 0, 0, 5);
1537
1538 scsi_scan_host(sh);
1539 return 0;
1540
1541 out_mptspi_probe:
1542
1543 mptscsih_remove(pdev);
1544 return error;
1545 }
1546
1547 static struct pci_driver mptspi_driver = {
1548 .name = "mptspi",
1549 .id_table = mptspi_pci_table,
1550 .probe = mptspi_probe,
1551 .remove = mptscsih_remove,
1552 .shutdown = mptscsih_shutdown,
1553 #ifdef CONFIG_PM
1554 .suspend = mptscsih_suspend,
1555 .resume = mptspi_resume,
1556 #endif
1557 };
1558
1559 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1560 /**
1561 * mptspi_init - Register MPT adapter(s) as SCSI host(s) with SCSI mid-layer.
1562 *
1563 * Returns 0 for success, non-zero for failure.
1564 */
1565 static int __init
1566 mptspi_init(void)
1567 {
1568 int error;
1569
1570 show_mptmod_ver(my_NAME, my_VERSION);
1571
1572 mptspi_transport_template = spi_attach_transport(&mptspi_transport_functions);
1573 if (!mptspi_transport_template)
1574 return -ENODEV;
1575
1576 mptspiDoneCtx = mpt_register(mptscsih_io_done, MPTSPI_DRIVER,
1577 "mptscsih_io_done");
1578 mptspiTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTSPI_DRIVER,
1579 "mptscsih_taskmgmt_complete");
1580 mptspiInternalCtx = mpt_register(mptscsih_scandv_complete,
1581 MPTSPI_DRIVER, "mptscsih_scandv_complete");
1582
1583 mpt_event_register(mptspiDoneCtx, mptspi_event_process);
1584 mpt_reset_register(mptspiDoneCtx, mptspi_ioc_reset);
1585
1586 error = pci_register_driver(&mptspi_driver);
1587 if (error)
1588 spi_release_transport(mptspi_transport_template);
1589
1590 return error;
1591 }
1592
1593 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1594 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1595 /**
1596 * mptspi_exit - Unregisters MPT adapter(s)
1597 */
1598 static void __exit
1599 mptspi_exit(void)
1600 {
1601 pci_unregister_driver(&mptspi_driver);
1602
1603 mpt_reset_deregister(mptspiDoneCtx);
1604 mpt_event_deregister(mptspiDoneCtx);
1605
1606 mpt_deregister(mptspiInternalCtx);
1607 mpt_deregister(mptspiTaskCtx);
1608 mpt_deregister(mptspiDoneCtx);
1609 spi_release_transport(mptspi_transport_template);
1610 }
1611
1612 module_init(mptspi_init);
1613 module_exit(mptspi_exit);
Linux with added FPC-III support