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Linux 4.19-rc7
[linux-2.6/btrfs-unstable.git] / drivers / message / fusion / mptspi.c
blob9a336a161d9f249139926d613a7a1d7794532d5f
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 kfree(starget->hostdata);
465 starget->hostdata = NULL;
466 }
467
468 /**
469 * mptspi_print_write_nego - negotiation parameters debug info that is being sent
470 * @hd: Pointer to a SCSI HOST structure
471 * @starget: SCSI target
472 * @ii: negotiation parameters
473 *
474 */
475 static void
476 mptspi_print_write_nego(struct _MPT_SCSI_HOST *hd, struct scsi_target *starget, u32 ii)
477 {
478 ddvprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "id=%d Requested = 0x%08x"
479 " ( %s factor = 0x%02x @ offset = 0x%02x %s%s%s%s%s%s%s%s)\n",
480 hd->ioc->name, starget->id, ii,
481 ii & MPI_SCSIDEVPAGE0_NP_WIDE ? "Wide ": "",
482 ((ii >> 8) & 0xFF), ((ii >> 16) & 0xFF),
483 ii & MPI_SCSIDEVPAGE0_NP_IU ? "IU ": "",
484 ii & MPI_SCSIDEVPAGE0_NP_DT ? "DT ": "",
485 ii & MPI_SCSIDEVPAGE0_NP_QAS ? "QAS ": "",
486 ii & MPI_SCSIDEVPAGE0_NP_HOLD_MCS ? "HOLDMCS ": "",
487 ii & MPI_SCSIDEVPAGE0_NP_WR_FLOW ? "WRFLOW ": "",
488 ii & MPI_SCSIDEVPAGE0_NP_RD_STRM ? "RDSTRM ": "",
489 ii & MPI_SCSIDEVPAGE0_NP_RTI ? "RTI ": "",
490 ii & MPI_SCSIDEVPAGE0_NP_PCOMP_EN ? "PCOMP ": ""));
491 }
492
493 /**
494 * mptspi_print_read_nego - negotiation parameters debug info that is being read
495 * @hd: Pointer to a SCSI HOST structure
496 * @starget: SCSI target
497 * @ii: negotiation parameters
498 *
499 */
500 static void
501 mptspi_print_read_nego(struct _MPT_SCSI_HOST *hd, struct scsi_target *starget, u32 ii)
502 {
503 ddvprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "id=%d Read = 0x%08x"
504 " ( %s factor = 0x%02x @ offset = 0x%02x %s%s%s%s%s%s%s%s)\n",
505 hd->ioc->name, starget->id, ii,
506 ii & MPI_SCSIDEVPAGE0_NP_WIDE ? "Wide ": "",
507 ((ii >> 8) & 0xFF), ((ii >> 16) & 0xFF),
508 ii & MPI_SCSIDEVPAGE0_NP_IU ? "IU ": "",
509 ii & MPI_SCSIDEVPAGE0_NP_DT ? "DT ": "",
510 ii & MPI_SCSIDEVPAGE0_NP_QAS ? "QAS ": "",
511 ii & MPI_SCSIDEVPAGE0_NP_HOLD_MCS ? "HOLDMCS ": "",
512 ii & MPI_SCSIDEVPAGE0_NP_WR_FLOW ? "WRFLOW ": "",
513 ii & MPI_SCSIDEVPAGE0_NP_RD_STRM ? "RDSTRM ": "",
514 ii & MPI_SCSIDEVPAGE0_NP_RTI ? "RTI ": "",
515 ii & MPI_SCSIDEVPAGE0_NP_PCOMP_EN ? "PCOMP ": ""));
516 }
517
518 static int mptspi_read_spi_device_pg0(struct scsi_target *starget,
519 struct _CONFIG_PAGE_SCSI_DEVICE_0 *pass_pg0)
520 {
521 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
522 struct _MPT_SCSI_HOST *hd = shost_priv(shost);
523 struct _MPT_ADAPTER *ioc = hd->ioc;
524 struct _CONFIG_PAGE_SCSI_DEVICE_0 *spi_dev_pg0;
525 dma_addr_t spi_dev_pg0_dma;
526 int size;
527 struct _x_config_parms cfg;
528 struct _CONFIG_PAGE_HEADER hdr;
529 int err = -EBUSY;
530
531 /* No SPI parameters for RAID devices */
532 if (starget->channel == 0 &&
533 mptspi_is_raid(hd, starget->id))
534 return -1;
535
536 size = ioc->spi_data.sdp0length * 4;
537 /*
538 if (ioc->spi_data.sdp0length & 1)
539 size += size + 4;
540 size += 2048;
541 */
542
543 spi_dev_pg0 = dma_alloc_coherent(&ioc->pcidev->dev, size, &spi_dev_pg0_dma, GFP_KERNEL);
544 if (spi_dev_pg0 == NULL) {
545 starget_printk(KERN_ERR, starget, MYIOC_s_FMT
546 "dma_alloc_coherent for parameters failed\n", ioc->name);
547 return -EINVAL;
548 }
549
550 memset(&hdr, 0, sizeof(hdr));
551
552 hdr.PageVersion = ioc->spi_data.sdp0version;
553 hdr.PageLength = ioc->spi_data.sdp0length;
554 hdr.PageNumber = 0;
555 hdr.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE;
556
557 memset(&cfg, 0, sizeof(cfg));
558
559 cfg.cfghdr.hdr = &hdr;
560 cfg.physAddr = spi_dev_pg0_dma;
561 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
562 cfg.dir = 0;
563 cfg.pageAddr = starget->id;
564 cfg.timeout = 60;
565
566 if (mpt_config(ioc, &cfg)) {
567 starget_printk(KERN_ERR, starget, MYIOC_s_FMT "mpt_config failed\n", ioc->name);
568 goto out_free;
569 }
570 err = 0;
571 memcpy(pass_pg0, spi_dev_pg0, size);
572
573 mptspi_print_read_nego(hd, starget, le32_to_cpu(spi_dev_pg0->NegotiatedParameters));
574
575 out_free:
576 dma_free_coherent(&ioc->pcidev->dev, size, spi_dev_pg0, spi_dev_pg0_dma);
577 return err;
578 }
579
580 static u32 mptspi_getRP(struct scsi_target *starget)
581 {
582 u32 nego = 0;
583
584 nego |= spi_iu(starget) ? MPI_SCSIDEVPAGE1_RP_IU : 0;
585 nego |= spi_dt(starget) ? MPI_SCSIDEVPAGE1_RP_DT : 0;
586 nego |= spi_qas(starget) ? MPI_SCSIDEVPAGE1_RP_QAS : 0;
587 nego |= spi_hold_mcs(starget) ? MPI_SCSIDEVPAGE1_RP_HOLD_MCS : 0;
588 nego |= spi_wr_flow(starget) ? MPI_SCSIDEVPAGE1_RP_WR_FLOW : 0;
589 nego |= spi_rd_strm(starget) ? MPI_SCSIDEVPAGE1_RP_RD_STRM : 0;
590 nego |= spi_rti(starget) ? MPI_SCSIDEVPAGE1_RP_RTI : 0;
591 nego |= spi_pcomp_en(starget) ? MPI_SCSIDEVPAGE1_RP_PCOMP_EN : 0;
592
593 nego |= (spi_period(starget) << MPI_SCSIDEVPAGE1_RP_SHIFT_MIN_SYNC_PERIOD) & MPI_SCSIDEVPAGE1_RP_MIN_SYNC_PERIOD_MASK;
594 nego |= (spi_offset(starget) << MPI_SCSIDEVPAGE1_RP_SHIFT_MAX_SYNC_OFFSET) & MPI_SCSIDEVPAGE1_RP_MAX_SYNC_OFFSET_MASK;
595 nego |= spi_width(starget) ? MPI_SCSIDEVPAGE1_RP_WIDE : 0;
596
597 return nego;
598 }
599
600 static void mptspi_read_parameters(struct scsi_target *starget)
601 {
602 int nego;
603 struct _CONFIG_PAGE_SCSI_DEVICE_0 spi_dev_pg0;
604
605 mptspi_read_spi_device_pg0(starget, &spi_dev_pg0);
606
607 nego = le32_to_cpu(spi_dev_pg0.NegotiatedParameters);
608
609 spi_iu(starget) = (nego & MPI_SCSIDEVPAGE0_NP_IU) ? 1 : 0;
610 spi_dt(starget) = (nego & MPI_SCSIDEVPAGE0_NP_DT) ? 1 : 0;
611 spi_qas(starget) = (nego & MPI_SCSIDEVPAGE0_NP_QAS) ? 1 : 0;
612 spi_wr_flow(starget) = (nego & MPI_SCSIDEVPAGE0_NP_WR_FLOW) ? 1 : 0;
613 spi_rd_strm(starget) = (nego & MPI_SCSIDEVPAGE0_NP_RD_STRM) ? 1 : 0;
614 spi_rti(starget) = (nego & MPI_SCSIDEVPAGE0_NP_RTI) ? 1 : 0;
615 spi_pcomp_en(starget) = (nego & MPI_SCSIDEVPAGE0_NP_PCOMP_EN) ? 1 : 0;
616 spi_hold_mcs(starget) = (nego & MPI_SCSIDEVPAGE0_NP_HOLD_MCS) ? 1 : 0;
617 spi_period(starget) = (nego & MPI_SCSIDEVPAGE0_NP_NEG_SYNC_PERIOD_MASK) >> MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_PERIOD;
618 spi_offset(starget) = (nego & MPI_SCSIDEVPAGE0_NP_NEG_SYNC_OFFSET_MASK) >> MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_OFFSET;
619 spi_width(starget) = (nego & MPI_SCSIDEVPAGE0_NP_WIDE) ? 1 : 0;
620 }
621
622 static int
623 mptscsih_quiesce_raid(MPT_SCSI_HOST *hd, int quiesce, u8 channel, u8 id)
624 {
625 MPT_ADAPTER *ioc = hd->ioc;
626 MpiRaidActionRequest_t *pReq;
627 MPT_FRAME_HDR *mf;
628 int ret;
629 unsigned long timeleft;
630
631 mutex_lock(&ioc->internal_cmds.mutex);
632
633 /* Get and Populate a free Frame
634 */
635 if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
636 dfailprintk(hd->ioc, printk(MYIOC_s_WARN_FMT
637 "%s: no msg frames!\n", ioc->name, __func__));
638 ret = -EAGAIN;
639 goto out;
640 }
641 pReq = (MpiRaidActionRequest_t *)mf;
642 if (quiesce)
643 pReq->Action = MPI_RAID_ACTION_QUIESCE_PHYS_IO;
644 else
645 pReq->Action = MPI_RAID_ACTION_ENABLE_PHYS_IO;
646 pReq->Reserved1 = 0;
647 pReq->ChainOffset = 0;
648 pReq->Function = MPI_FUNCTION_RAID_ACTION;
649 pReq->VolumeID = id;
650 pReq->VolumeBus = channel;
651 pReq->PhysDiskNum = 0;
652 pReq->MsgFlags = 0;
653 pReq->Reserved2 = 0;
654 pReq->ActionDataWord = 0; /* Reserved for this action */
655
656 ioc->add_sge((char *)&pReq->ActionDataSGE,
657 MPT_SGE_FLAGS_SSIMPLE_READ | 0, (dma_addr_t) -1);
658
659 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "RAID Volume action=%x channel=%d id=%d\n",
660 ioc->name, pReq->Action, channel, id));
661
662 INITIALIZE_MGMT_STATUS(ioc->internal_cmds.status)
663 mpt_put_msg_frame(ioc->InternalCtx, ioc, mf);
664 timeleft = wait_for_completion_timeout(&ioc->internal_cmds.done, 10*HZ);
665 if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
666 ret = -ETIME;
667 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: TIMED OUT!\n",
668 ioc->name, __func__));
669 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET)
670 goto out;
671 if (!timeleft) {
672 printk(MYIOC_s_WARN_FMT "Issuing Reset from %s!!\n",
673 ioc->name, __func__);
674 mpt_HardResetHandler(ioc, CAN_SLEEP);
675 mpt_free_msg_frame(ioc, mf);
676 }
677 goto out;
678 }
679
680 ret = ioc->internal_cmds.completion_code;
681
682 out:
683 CLEAR_MGMT_STATUS(ioc->internal_cmds.status)
684 mutex_unlock(&ioc->internal_cmds.mutex);
685 return ret;
686 }
687
688 static void mptspi_dv_device(struct _MPT_SCSI_HOST *hd,
689 struct scsi_device *sdev)
690 {
691 VirtTarget *vtarget = scsi_target(sdev)->hostdata;
692 MPT_ADAPTER *ioc = hd->ioc;
693
694 /* no DV on RAID devices */
695 if (sdev->channel == 0 &&
696 mptspi_is_raid(hd, sdev->id))
697 return;
698
699 /* If this is a piece of a RAID, then quiesce first */
700 if (sdev->channel == 1 &&
701 mptscsih_quiesce_raid(hd, 1, vtarget->channel, vtarget->id) < 0) {
702 starget_printk(KERN_ERR, scsi_target(sdev), MYIOC_s_FMT
703 "Integrated RAID quiesce failed\n", ioc->name);
704 return;
705 }
706
707 hd->spi_pending |= (1 << sdev->id);
708 spi_dv_device(sdev);
709 hd->spi_pending &= ~(1 << sdev->id);
710
711 if (sdev->channel == 1 &&
712 mptscsih_quiesce_raid(hd, 0, vtarget->channel, vtarget->id) < 0)
713 starget_printk(KERN_ERR, scsi_target(sdev), MYIOC_s_FMT
714 "Integrated RAID resume failed\n", ioc->name);
715
716 mptspi_read_parameters(sdev->sdev_target);
717 spi_display_xfer_agreement(sdev->sdev_target);
718 mptspi_read_parameters(sdev->sdev_target);
719 }
720
721 static int mptspi_slave_alloc(struct scsi_device *sdev)
722 {
723 MPT_SCSI_HOST *hd = shost_priv(sdev->host);
724 VirtTarget *vtarget;
725 VirtDevice *vdevice;
726 struct scsi_target *starget;
727 MPT_ADAPTER *ioc = hd->ioc;
728
729 if (sdev->channel == 1 &&
730 mptscsih_is_phys_disk(ioc, 0, sdev->id) == 0)
731 return -ENXIO;
732
733 vdevice = kzalloc(sizeof(VirtDevice), GFP_KERNEL);
734 if (!vdevice) {
735 printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n",
736 ioc->name, sizeof(VirtDevice));
737 return -ENOMEM;
738 }
739
740 vdevice->lun = sdev->lun;
741 sdev->hostdata = vdevice;
742
743 starget = scsi_target(sdev);
744 vtarget = starget->hostdata;
745 vdevice->vtarget = vtarget;
746 vtarget->num_luns++;
747
748 if (sdev->channel == 1)
749 sdev->no_uld_attach = 1;
750
751 return 0;
752 }
753
754 static int mptspi_slave_configure(struct scsi_device *sdev)
755 {
756 struct _MPT_SCSI_HOST *hd = shost_priv(sdev->host);
757 VirtTarget *vtarget = scsi_target(sdev)->hostdata;
758 int ret;
759
760 mptspi_initTarget(hd, vtarget, sdev);
761
762 ret = mptscsih_slave_configure(sdev);
763
764 if (ret)
765 return ret;
766
767 ddvprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "id=%d min_period=0x%02x"
768 " max_offset=0x%02x max_width=%d\n", hd->ioc->name,
769 sdev->id, spi_min_period(scsi_target(sdev)),
770 spi_max_offset(scsi_target(sdev)),
771 spi_max_width(scsi_target(sdev))));
772
773 if ((sdev->channel == 1 ||
774 !(mptspi_is_raid(hd, sdev->id))) &&
775 !spi_initial_dv(sdev->sdev_target))
776 mptspi_dv_device(hd, sdev);
777
778 return 0;
779 }
780
781 static int
782 mptspi_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *SCpnt)
783 {
784 struct _MPT_SCSI_HOST *hd = shost_priv(shost);
785 VirtDevice *vdevice = SCpnt->device->hostdata;
786 MPT_ADAPTER *ioc = hd->ioc;
787
788 if (!vdevice || !vdevice->vtarget) {
789 SCpnt->result = DID_NO_CONNECT << 16;
790 SCpnt->scsi_done(SCpnt);
791 return 0;
792 }
793
794 if (SCpnt->device->channel == 1 &&
795 mptscsih_is_phys_disk(ioc, 0, SCpnt->device->id) == 0) {
796 SCpnt->result = DID_NO_CONNECT << 16;
797 SCpnt->scsi_done(SCpnt);
798 return 0;
799 }
800
801 if (spi_dv_pending(scsi_target(SCpnt->device)))
802 ddvprintk(ioc, scsi_print_command(SCpnt));
803
804 return mptscsih_qcmd(SCpnt);
805 }
806
807 static void mptspi_slave_destroy(struct scsi_device *sdev)
808 {
809 struct scsi_target *starget = scsi_target(sdev);
810 VirtTarget *vtarget = starget->hostdata;
811 VirtDevice *vdevice = sdev->hostdata;
812
813 /* Will this be the last lun on a non-raid device? */
814 if (vtarget->num_luns == 1 && vdevice->configured_lun) {
815 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
816
817 /* Async Narrow */
818 pg1.RequestedParameters = 0;
819 pg1.Reserved = 0;
820 pg1.Configuration = 0;
821
822 mptspi_write_spi_device_pg1(starget, &pg1);
823 }
824
825 mptscsih_slave_destroy(sdev);
826 }
827
828 static struct scsi_host_template mptspi_driver_template = {
829 .module = THIS_MODULE,
830 .proc_name = "mptspi",
831 .show_info = mptscsih_show_info,
832 .name = "MPT SPI Host",
833 .info = mptscsih_info,
834 .queuecommand = mptspi_qcmd,
835 .target_alloc = mptspi_target_alloc,
836 .slave_alloc = mptspi_slave_alloc,
837 .slave_configure = mptspi_slave_configure,
838 .target_destroy = mptspi_target_destroy,
839 .slave_destroy = mptspi_slave_destroy,
840 .change_queue_depth = mptscsih_change_queue_depth,
841 .eh_abort_handler = mptscsih_abort,
842 .eh_device_reset_handler = mptscsih_dev_reset,
843 .eh_bus_reset_handler = mptscsih_bus_reset,
844 .eh_host_reset_handler = mptscsih_host_reset,
845 .bios_param = mptscsih_bios_param,
846 .can_queue = MPT_SCSI_CAN_QUEUE,
847 .this_id = -1,
848 .sg_tablesize = MPT_SCSI_SG_DEPTH,
849 .max_sectors = 8192,
850 .cmd_per_lun = 7,
851 .use_clustering = ENABLE_CLUSTERING,
852 .shost_attrs = mptscsih_host_attrs,
853 };
854
855 static int mptspi_write_spi_device_pg1(struct scsi_target *starget,
856 struct _CONFIG_PAGE_SCSI_DEVICE_1 *pass_pg1)
857 {
858 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
859 struct _MPT_SCSI_HOST *hd = shost_priv(shost);
860 struct _MPT_ADAPTER *ioc = hd->ioc;
861 struct _CONFIG_PAGE_SCSI_DEVICE_1 *pg1;
862 dma_addr_t pg1_dma;
863 int size;
864 struct _x_config_parms cfg;
865 struct _CONFIG_PAGE_HEADER hdr;
866 int err = -EBUSY;
867 u32 nego_parms;
868 u32 period;
869 struct scsi_device *sdev;
870 int i;
871
872 /* don't allow updating nego parameters on RAID devices */
873 if (starget->channel == 0 &&
874 mptspi_is_raid(hd, starget->id))
875 return -1;
876
877 size = ioc->spi_data.sdp1length * 4;
878
879 pg1 = dma_alloc_coherent(&ioc->pcidev->dev, size, &pg1_dma, GFP_KERNEL);
880 if (pg1 == NULL) {
881 starget_printk(KERN_ERR, starget, MYIOC_s_FMT
882 "dma_alloc_coherent for parameters failed\n", ioc->name);
883 return -EINVAL;
884 }
885
886 memset(&hdr, 0, sizeof(hdr));
887
888 hdr.PageVersion = ioc->spi_data.sdp1version;
889 hdr.PageLength = ioc->spi_data.sdp1length;
890 hdr.PageNumber = 1;
891 hdr.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE;
892
893 memset(&cfg, 0, sizeof(cfg));
894
895 cfg.cfghdr.hdr = &hdr;
896 cfg.physAddr = pg1_dma;
897 cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT;
898 cfg.dir = 1;
899 cfg.pageAddr = starget->id;
900
901 memcpy(pg1, pass_pg1, size);
902
903 pg1->Header.PageVersion = hdr.PageVersion;
904 pg1->Header.PageLength = hdr.PageLength;
905 pg1->Header.PageNumber = hdr.PageNumber;
906 pg1->Header.PageType = hdr.PageType;
907
908 nego_parms = le32_to_cpu(pg1->RequestedParameters);
909 period = (nego_parms & MPI_SCSIDEVPAGE1_RP_MIN_SYNC_PERIOD_MASK) >>
910 MPI_SCSIDEVPAGE1_RP_SHIFT_MIN_SYNC_PERIOD;
911 if (period == 8) {
912 /* Turn on inline data padding for TAPE when running U320 */
913 for (i = 0 ; i < 16; i++) {
914 sdev = scsi_device_lookup_by_target(starget, i);
915 if (sdev && sdev->type == TYPE_TAPE) {
916 sdev_printk(KERN_DEBUG, sdev, MYIOC_s_FMT
917 "IDP:ON\n", ioc->name);
918 nego_parms |= MPI_SCSIDEVPAGE1_RP_IDP;
919 pg1->RequestedParameters =
920 cpu_to_le32(nego_parms);
921 break;
922 }
923 }
924 }
925
926 mptspi_print_write_nego(hd, starget, le32_to_cpu(pg1->RequestedParameters));
927
928 if (mpt_config(ioc, &cfg)) {
929 starget_printk(KERN_ERR, starget, MYIOC_s_FMT
930 "mpt_config failed\n", ioc->name);
931 goto out_free;
932 }
933 err = 0;
934
935 out_free:
936 dma_free_coherent(&ioc->pcidev->dev, size, pg1, pg1_dma);
937 return err;
938 }
939
940 static void mptspi_write_offset(struct scsi_target *starget, int offset)
941 {
942 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
943 u32 nego;
944
945 if (offset < 0)
946 offset = 0;
947
948 if (offset > 255)
949 offset = 255;
950
951 if (spi_offset(starget) == -1)
952 mptspi_read_parameters(starget);
953
954 spi_offset(starget) = offset;
955
956 nego = mptspi_getRP(starget);
957
958 pg1.RequestedParameters = cpu_to_le32(nego);
959 pg1.Reserved = 0;
960 pg1.Configuration = 0;
961
962 mptspi_write_spi_device_pg1(starget, &pg1);
963 }
964
965 static void mptspi_write_period(struct scsi_target *starget, int period)
966 {
967 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
968 u32 nego;
969
970 if (period < 8)
971 period = 8;
972
973 if (period > 255)
974 period = 255;
975
976 if (spi_period(starget) == -1)
977 mptspi_read_parameters(starget);
978
979 if (period == 8) {
980 spi_iu(starget) = 1;
981 spi_dt(starget) = 1;
982 } else if (period == 9) {
983 spi_dt(starget) = 1;
984 }
985
986 spi_period(starget) = period;
987
988 nego = mptspi_getRP(starget);
989
990 pg1.RequestedParameters = cpu_to_le32(nego);
991 pg1.Reserved = 0;
992 pg1.Configuration = 0;
993
994 mptspi_write_spi_device_pg1(starget, &pg1);
995 }
996
997 static void mptspi_write_dt(struct scsi_target *starget, int dt)
998 {
999 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
1000 u32 nego;
1001
1002 if (spi_period(starget) == -1)
1003 mptspi_read_parameters(starget);
1004
1005 if (!dt && spi_period(starget) < 10)
1006 spi_period(starget) = 10;
1007
1008 spi_dt(starget) = dt;
1009
1010 nego = mptspi_getRP(starget);
1011
1012
1013 pg1.RequestedParameters = cpu_to_le32(nego);
1014 pg1.Reserved = 0;
1015 pg1.Configuration = 0;
1016
1017 mptspi_write_spi_device_pg1(starget, &pg1);
1018 }
1019
1020 static void mptspi_write_iu(struct scsi_target *starget, int iu)
1021 {
1022 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
1023 u32 nego;
1024
1025 if (spi_period(starget) == -1)
1026 mptspi_read_parameters(starget);
1027
1028 if (!iu && spi_period(starget) < 9)
1029 spi_period(starget) = 9;
1030
1031 spi_iu(starget) = iu;
1032
1033 nego = mptspi_getRP(starget);
1034
1035 pg1.RequestedParameters = cpu_to_le32(nego);
1036 pg1.Reserved = 0;
1037 pg1.Configuration = 0;
1038
1039 mptspi_write_spi_device_pg1(starget, &pg1);
1040 }
1041
1042 #define MPTSPI_SIMPLE_TRANSPORT_PARM(parm) \
1043 static void mptspi_write_##parm(struct scsi_target *starget, int parm)\
1044 { \
1045 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; \
1046 u32 nego; \
1047 \
1048 spi_##parm(starget) = parm; \
1049 \
1050 nego = mptspi_getRP(starget); \
1051 \
1052 pg1.RequestedParameters = cpu_to_le32(nego); \
1053 pg1.Reserved = 0; \
1054 pg1.Configuration = 0; \
1055 \
1056 mptspi_write_spi_device_pg1(starget, &pg1); \
1057 }
1058
1059 MPTSPI_SIMPLE_TRANSPORT_PARM(rd_strm)
1060 MPTSPI_SIMPLE_TRANSPORT_PARM(wr_flow)
1061 MPTSPI_SIMPLE_TRANSPORT_PARM(rti)
1062 MPTSPI_SIMPLE_TRANSPORT_PARM(hold_mcs)
1063 MPTSPI_SIMPLE_TRANSPORT_PARM(pcomp_en)
1064
1065 static void mptspi_write_qas(struct scsi_target *starget, int qas)
1066 {
1067 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
1068 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
1069 struct _MPT_SCSI_HOST *hd = shost_priv(shost);
1070 VirtTarget *vtarget = starget->hostdata;
1071 u32 nego;
1072
1073 if ((vtarget->negoFlags & MPT_TARGET_NO_NEGO_QAS) ||
1074 hd->ioc->spi_data.noQas)
1075 spi_qas(starget) = 0;
1076 else
1077 spi_qas(starget) = qas;
1078
1079 nego = mptspi_getRP(starget);
1080
1081 pg1.RequestedParameters = cpu_to_le32(nego);
1082 pg1.Reserved = 0;
1083 pg1.Configuration = 0;
1084
1085 mptspi_write_spi_device_pg1(starget, &pg1);
1086 }
1087
1088 static void mptspi_write_width(struct scsi_target *starget, int width)
1089 {
1090 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
1091 u32 nego;
1092
1093 if (!width) {
1094 spi_dt(starget) = 0;
1095 if (spi_period(starget) < 10)
1096 spi_period(starget) = 10;
1097 }
1098
1099 spi_width(starget) = width;
1100
1101 nego = mptspi_getRP(starget);
1102
1103 pg1.RequestedParameters = cpu_to_le32(nego);
1104 pg1.Reserved = 0;
1105 pg1.Configuration = 0;
1106
1107 mptspi_write_spi_device_pg1(starget, &pg1);
1108 }
1109
1110 struct work_queue_wrapper {
1111 struct work_struct work;
1112 struct _MPT_SCSI_HOST *hd;
1113 int disk;
1114 };
1115
1116 static void mpt_work_wrapper(struct work_struct *work)
1117 {
1118 struct work_queue_wrapper *wqw =
1119 container_of(work, struct work_queue_wrapper, work);
1120 struct _MPT_SCSI_HOST *hd = wqw->hd;
1121 MPT_ADAPTER *ioc = hd->ioc;
1122 struct Scsi_Host *shost = ioc->sh;
1123 struct scsi_device *sdev;
1124 int disk = wqw->disk;
1125 struct _CONFIG_PAGE_IOC_3 *pg3;
1126
1127 kfree(wqw);
1128
1129 mpt_findImVolumes(ioc);
1130 pg3 = ioc->raid_data.pIocPg3;
1131 if (!pg3)
1132 return;
1133
1134 shost_for_each_device(sdev,shost) {
1135 struct scsi_target *starget = scsi_target(sdev);
1136 VirtTarget *vtarget = starget->hostdata;
1137
1138 /* only want to search RAID components */
1139 if (sdev->channel != 1)
1140 continue;
1141
1142 /* The id is the raid PhysDiskNum, even if
1143 * starget->id is the actual target address */
1144 if(vtarget->id != disk)
1145 continue;
1146
1147 starget_printk(KERN_INFO, vtarget->starget, MYIOC_s_FMT
1148 "Integrated RAID requests DV of new device\n", ioc->name);
1149 mptspi_dv_device(hd, sdev);
1150 }
1151 shost_printk(KERN_INFO, shost, MYIOC_s_FMT
1152 "Integrated RAID detects new device %d\n", ioc->name, disk);
1153 scsi_scan_target(&ioc->sh->shost_gendev, 1, disk, 0, SCSI_SCAN_RESCAN);
1154 }
1155
1156
1157 static void mpt_dv_raid(struct _MPT_SCSI_HOST *hd, int disk)
1158 {
1159 struct work_queue_wrapper *wqw = kmalloc(sizeof(*wqw), GFP_ATOMIC);
1160 MPT_ADAPTER *ioc = hd->ioc;
1161
1162 if (!wqw) {
1163 shost_printk(KERN_ERR, ioc->sh, MYIOC_s_FMT
1164 "Failed to act on RAID event for physical disk %d\n",
1165 ioc->name, disk);
1166 return;
1167 }
1168 INIT_WORK(&wqw->work, mpt_work_wrapper);
1169 wqw->hd = hd;
1170 wqw->disk = disk;
1171
1172 schedule_work(&wqw->work);
1173 }
1174
1175 static int
1176 mptspi_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
1177 {
1178 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
1179 struct _MPT_SCSI_HOST *hd = shost_priv(ioc->sh);
1180
1181 if (ioc->bus_type != SPI)
1182 return 0;
1183
1184 if (hd && event == MPI_EVENT_INTEGRATED_RAID) {
1185 int reason
1186 = (le32_to_cpu(pEvReply->Data[0]) & 0x00FF0000) >> 16;
1187
1188 if (reason == MPI_EVENT_RAID_RC_DOMAIN_VAL_NEEDED) {
1189 int disk = (le32_to_cpu(pEvReply->Data[0]) & 0xFF000000) >> 24;
1190 mpt_dv_raid(hd, disk);
1191 }
1192 }
1193 return mptscsih_event_process(ioc, pEvReply);
1194 }
1195
1196 static int
1197 mptspi_deny_binding(struct scsi_target *starget)
1198 {
1199 struct _MPT_SCSI_HOST *hd =
1200 (struct _MPT_SCSI_HOST *)dev_to_shost(starget->dev.parent)->hostdata;
1201 return ((mptspi_is_raid(hd, starget->id)) &&
1202 starget->channel == 0) ? 1 : 0;
1203 }
1204
1205 static struct spi_function_template mptspi_transport_functions = {
1206 .get_offset = mptspi_read_parameters,
1207 .set_offset = mptspi_write_offset,
1208 .show_offset = 1,
1209 .get_period = mptspi_read_parameters,
1210 .set_period = mptspi_write_period,
1211 .show_period = 1,
1212 .get_width = mptspi_read_parameters,
1213 .set_width = mptspi_write_width,
1214 .show_width = 1,
1215 .get_iu = mptspi_read_parameters,
1216 .set_iu = mptspi_write_iu,
1217 .show_iu = 1,
1218 .get_dt = mptspi_read_parameters,
1219 .set_dt = mptspi_write_dt,
1220 .show_dt = 1,
1221 .get_qas = mptspi_read_parameters,
1222 .set_qas = mptspi_write_qas,
1223 .show_qas = 1,
1224 .get_wr_flow = mptspi_read_parameters,
1225 .set_wr_flow = mptspi_write_wr_flow,
1226 .show_wr_flow = 1,
1227 .get_rd_strm = mptspi_read_parameters,
1228 .set_rd_strm = mptspi_write_rd_strm,
1229 .show_rd_strm = 1,
1230 .get_rti = mptspi_read_parameters,
1231 .set_rti = mptspi_write_rti,
1232 .show_rti = 1,
1233 .get_pcomp_en = mptspi_read_parameters,
1234 .set_pcomp_en = mptspi_write_pcomp_en,
1235 .show_pcomp_en = 1,
1236 .get_hold_mcs = mptspi_read_parameters,
1237 .set_hold_mcs = mptspi_write_hold_mcs,
1238 .show_hold_mcs = 1,
1239 .deny_binding = mptspi_deny_binding,
1240 };
1241
1242 /****************************************************************************
1243 * Supported hardware
1244 */
1245
1246 static struct pci_device_id mptspi_pci_table[] = {
1247 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_53C1030,
1248 PCI_ANY_ID, PCI_ANY_ID },
1249 { PCI_VENDOR_ID_ATTO, MPI_MANUFACTPAGE_DEVID_53C1030,
1250 PCI_ANY_ID, PCI_ANY_ID },
1251 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_53C1035,
1252 PCI_ANY_ID, PCI_ANY_ID },
1253 {0} /* Terminating entry */
1254 };
1255 MODULE_DEVICE_TABLE(pci, mptspi_pci_table);
1256
1257
1258 /*
1259 * renegotiate for a given target
1260 */
1261 static void
1262 mptspi_dv_renegotiate_work(struct work_struct *work)
1263 {
1264 struct work_queue_wrapper *wqw =
1265 container_of(work, struct work_queue_wrapper, work);
1266 struct _MPT_SCSI_HOST *hd = wqw->hd;
1267 struct scsi_device *sdev;
1268 struct scsi_target *starget;
1269 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
1270 u32 nego;
1271 MPT_ADAPTER *ioc = hd->ioc;
1272
1273 kfree(wqw);
1274
1275 if (hd->spi_pending) {
1276 shost_for_each_device(sdev, ioc->sh) {
1277 if (hd->spi_pending & (1 << sdev->id))
1278 continue;
1279 starget = scsi_target(sdev);
1280 nego = mptspi_getRP(starget);
1281 pg1.RequestedParameters = cpu_to_le32(nego);
1282 pg1.Reserved = 0;
1283 pg1.Configuration = 0;
1284 mptspi_write_spi_device_pg1(starget, &pg1);
1285 }
1286 } else {
1287 shost_for_each_device(sdev, ioc->sh)
1288 mptspi_dv_device(hd, sdev);
1289 }
1290 }
1291
1292 static void
1293 mptspi_dv_renegotiate(struct _MPT_SCSI_HOST *hd)
1294 {
1295 struct work_queue_wrapper *wqw = kmalloc(sizeof(*wqw), GFP_ATOMIC);
1296
1297 if (!wqw)
1298 return;
1299
1300 INIT_WORK(&wqw->work, mptspi_dv_renegotiate_work);
1301 wqw->hd = hd;
1302
1303 schedule_work(&wqw->work);
1304 }
1305
1306 /*
1307 * spi module reset handler
1308 */
1309 static int
1310 mptspi_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
1311 {
1312 int rc;
1313
1314 rc = mptscsih_ioc_reset(ioc, reset_phase);
1315 if ((ioc->bus_type != SPI) || (!rc))
1316 return rc;
1317
1318 /* only try to do a renegotiation if we're properly set up
1319 * if we get an ioc fault on bringup, ioc->sh will be NULL */
1320 if (reset_phase == MPT_IOC_POST_RESET &&
1321 ioc->sh) {
1322 struct _MPT_SCSI_HOST *hd = shost_priv(ioc->sh);
1323
1324 mptspi_dv_renegotiate(hd);
1325 }
1326
1327 return rc;
1328 }
1329
1330 #ifdef CONFIG_PM
1331 /*
1332 * spi module resume handler
1333 */
1334 static int
1335 mptspi_resume(struct pci_dev *pdev)
1336 {
1337 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1338 struct _MPT_SCSI_HOST *hd = shost_priv(ioc->sh);
1339 int rc;
1340
1341 rc = mptscsih_resume(pdev);
1342 mptspi_dv_renegotiate(hd);
1343
1344 return rc;
1345 }
1346 #endif
1347
1348 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1349 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1350 /*
1351 * mptspi_probe - Installs scsi devices per bus.
1352 * @pdev: Pointer to pci_dev structure
1353 *
1354 * Returns 0 for success, non-zero for failure.
1355 *
1356 */
1357 static int
1358 mptspi_probe(struct pci_dev *pdev, const struct pci_device_id *id)
1359 {
1360 struct Scsi_Host *sh;
1361 MPT_SCSI_HOST *hd;
1362 MPT_ADAPTER *ioc;
1363 unsigned long flags;
1364 int ii;
1365 int numSGE = 0;
1366 int scale;
1367 int ioc_cap;
1368 int error=0;
1369 int r;
1370
1371 if ((r = mpt_attach(pdev,id)) != 0)
1372 return r;
1373
1374 ioc = pci_get_drvdata(pdev);
1375 ioc->DoneCtx = mptspiDoneCtx;
1376 ioc->TaskCtx = mptspiTaskCtx;
1377 ioc->InternalCtx = mptspiInternalCtx;
1378
1379 /* Added sanity check on readiness of the MPT adapter.
1380 */
1381 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) {
1382 printk(MYIOC_s_WARN_FMT
1383 "Skipping because it's not operational!\n",
1384 ioc->name);
1385 error = -ENODEV;
1386 goto out_mptspi_probe;
1387 }
1388
1389 if (!ioc->active) {
1390 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n",
1391 ioc->name);
1392 error = -ENODEV;
1393 goto out_mptspi_probe;
1394 }
1395
1396 /* Sanity check - ensure at least 1 port is INITIATOR capable
1397 */
1398 ioc_cap = 0;
1399 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1400 if (ioc->pfacts[ii].ProtocolFlags &
1401 MPI_PORTFACTS_PROTOCOL_INITIATOR)
1402 ioc_cap ++;
1403 }
1404
1405 if (!ioc_cap) {
1406 printk(MYIOC_s_WARN_FMT
1407 "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n",
1408 ioc->name, ioc);
1409 return 0;
1410 }
1411
1412 sh = scsi_host_alloc(&mptspi_driver_template, sizeof(MPT_SCSI_HOST));
1413
1414 if (!sh) {
1415 printk(MYIOC_s_WARN_FMT
1416 "Unable to register controller with SCSI subsystem\n",
1417 ioc->name);
1418 error = -1;
1419 goto out_mptspi_probe;
1420 }
1421
1422 /* VMWare emulation doesn't properly implement WRITE_SAME
1423 */
1424 if (pdev->subsystem_vendor == 0x15AD)
1425 sh->no_write_same = 1;
1426
1427 spin_lock_irqsave(&ioc->FreeQlock, flags);
1428
1429 /* Attach the SCSI Host to the IOC structure
1430 */
1431 ioc->sh = sh;
1432
1433 sh->io_port = 0;
1434 sh->n_io_port = 0;
1435 sh->irq = 0;
1436
1437 /* set 16 byte cdb's */
1438 sh->max_cmd_len = 16;
1439
1440 /* Yikes! This is important!
1441 * Otherwise, by default, linux
1442 * only scans target IDs 0-7!
1443 * pfactsN->MaxDevices unreliable
1444 * (not supported in early
1445 * versions of the FW).
1446 * max_id = 1 + actual max id,
1447 * max_lun = 1 + actual last lun,
1448 * see hosts.h :o(
1449 */
1450 sh->max_id = ioc->devices_per_bus;
1451
1452 sh->max_lun = MPT_LAST_LUN + 1;
1453 /*
1454 * If RAID Firmware Detected, setup virtual channel
1455 */
1456 if (ioc->ir_firmware)
1457 sh->max_channel = 1;
1458 else
1459 sh->max_channel = 0;
1460 sh->this_id = ioc->pfacts[0].PortSCSIID;
1461
1462 /* Required entry.
1463 */
1464 sh->unique_id = ioc->id;
1465
1466 /* Verify that we won't exceed the maximum
1467 * number of chain buffers
1468 * We can optimize: ZZ = req_sz/sizeof(SGE)
1469 * For 32bit SGE's:
1470 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ
1471 * + (req_sz - 64)/sizeof(SGE)
1472 * A slightly different algorithm is required for
1473 * 64bit SGEs.
1474 */
1475 scale = ioc->req_sz/ioc->SGE_size;
1476 if (ioc->sg_addr_size == sizeof(u64)) {
1477 numSGE = (scale - 1) *
1478 (ioc->facts.MaxChainDepth-1) + scale +
1479 (ioc->req_sz - 60) / ioc->SGE_size;
1480 } else {
1481 numSGE = 1 + (scale - 1) *
1482 (ioc->facts.MaxChainDepth-1) + scale +
1483 (ioc->req_sz - 64) / ioc->SGE_size;
1484 }
1485
1486 if (numSGE < sh->sg_tablesize) {
1487 /* Reset this value */
1488 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1489 "Resetting sg_tablesize to %d from %d\n",
1490 ioc->name, numSGE, sh->sg_tablesize));
1491 sh->sg_tablesize = numSGE;
1492 }
1493
1494 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1495
1496 hd = shost_priv(sh);
1497 hd->ioc = ioc;
1498
1499 /* SCSI needs scsi_cmnd lookup table!
1500 * (with size equal to req_depth*PtrSz!)
1501 */
1502 ioc->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC);
1503 if (!ioc->ScsiLookup) {
1504 error = -ENOMEM;
1505 goto out_mptspi_probe;
1506 }
1507 spin_lock_init(&ioc->scsi_lookup_lock);
1508
1509 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScsiLookup @ %p\n",
1510 ioc->name, ioc->ScsiLookup));
1511
1512 ioc->spi_data.Saf_Te = mpt_saf_te;
1513 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1514 "saf_te %x\n",
1515 ioc->name,
1516 mpt_saf_te));
1517 ioc->spi_data.noQas = 0;
1518
1519 hd->last_queue_full = 0;
1520 hd->spi_pending = 0;
1521
1522 /* Some versions of the firmware don't support page 0; without
1523 * that we can't get the parameters */
1524 if (ioc->spi_data.sdp0length != 0)
1525 sh->transportt = mptspi_transport_template;
1526
1527 error = scsi_add_host (sh, &ioc->pcidev->dev);
1528 if(error) {
1529 dprintk(ioc, printk(MYIOC_s_ERR_FMT
1530 "scsi_add_host failed\n", ioc->name));
1531 goto out_mptspi_probe;
1532 }
1533
1534 /*
1535 * issue internal bus reset
1536 */
1537 if (ioc->spi_data.bus_reset)
1538 mptscsih_IssueTaskMgmt(hd,
1539 MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
1540 0, 0, 0, 0, 5);
1541
1542 scsi_scan_host(sh);
1543 return 0;
1544
1545 out_mptspi_probe:
1546
1547 mptscsih_remove(pdev);
1548 return error;
1549 }
1550
1551 static void mptspi_remove(struct pci_dev *pdev)
1552 {
1553 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1554
1555 scsi_remove_host(ioc->sh);
1556 mptscsih_remove(pdev);
1557 }
1558
1559 static struct pci_driver mptspi_driver = {
1560 .name = "mptspi",
1561 .id_table = mptspi_pci_table,
1562 .probe = mptspi_probe,
1563 .remove = mptspi_remove,
1564 .shutdown = mptscsih_shutdown,
1565 #ifdef CONFIG_PM
1566 .suspend = mptscsih_suspend,
1567 .resume = mptspi_resume,
1568 #endif
1569 };
1570
1571 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1572 /**
1573 * mptspi_init - Register MPT adapter(s) as SCSI host(s) with SCSI mid-layer.
1574 *
1575 * Returns 0 for success, non-zero for failure.
1576 */
1577 static int __init
1578 mptspi_init(void)
1579 {
1580 int error;
1581
1582 show_mptmod_ver(my_NAME, my_VERSION);
1583
1584 mptspi_transport_template = spi_attach_transport(&mptspi_transport_functions);
1585 if (!mptspi_transport_template)
1586 return -ENODEV;
1587
1588 mptspiDoneCtx = mpt_register(mptscsih_io_done, MPTSPI_DRIVER,
1589 "mptscsih_io_done");
1590 mptspiTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTSPI_DRIVER,
1591 "mptscsih_taskmgmt_complete");
1592 mptspiInternalCtx = mpt_register(mptscsih_scandv_complete,
1593 MPTSPI_DRIVER, "mptscsih_scandv_complete");
1594
1595 mpt_event_register(mptspiDoneCtx, mptspi_event_process);
1596 mpt_reset_register(mptspiDoneCtx, mptspi_ioc_reset);
1597
1598 error = pci_register_driver(&mptspi_driver);
1599 if (error)
1600 spi_release_transport(mptspi_transport_template);
1601
1602 return error;
1603 }
1604
1605 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1606 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1607 /**
1608 * mptspi_exit - Unregisters MPT adapter(s)
1609 */
1610 static void __exit
1611 mptspi_exit(void)
1612 {
1613 pci_unregister_driver(&mptspi_driver);
1614
1615 mpt_reset_deregister(mptspiDoneCtx);
1616 mpt_event_deregister(mptspiDoneCtx);
1617
1618 mpt_deregister(mptspiInternalCtx);
1619 mpt_deregister(mptspiTaskCtx);
1620 mpt_deregister(mptspiDoneCtx);
1621 spi_release_transport(mptspi_transport_template);
1622 }
1623
1624 module_init(mptspi_init);
1625 module_exit(mptspi_exit);
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