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[linux-2.6/verdex.git] / drivers / message / fusion / mptspi.c
blob8c98420640a5eccaccaecfc3bff15f219a4e8707
1 /*
2 * linux/drivers/message/fusion/mptspi.c
3 * For use with LSI Logic PCI chip/adapter(s)
4 * running LSI Logic Fusion MPT (Message Passing Technology) firmware.
5 *
6 * Copyright (c) 1999-2007 LSI Logic 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/init.h>
50 #include <linux/errno.h>
51 #include <linux/kdev_t.h>
52 #include <linux/blkdev.h>
53 #include <linux/delay.h> /* for mdelay */
54 #include <linux/interrupt.h> /* needed for in_interrupt() proto */
55 #include <linux/reboot.h> /* notifier code */
56 #include <linux/workqueue.h>
57 #include <linux/raid_class.h>
58
59 #include <scsi/scsi.h>
60 #include <scsi/scsi_cmnd.h>
61 #include <scsi/scsi_device.h>
62 #include <scsi/scsi_host.h>
63 #include <scsi/scsi_tcq.h>
64 #include <scsi/scsi_transport.h>
65 #include <scsi/scsi_transport_spi.h>
66 #include <scsi/scsi_dbg.h>
67
68 #include "mptbase.h"
69 #include "mptscsih.h"
70
71 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
72 #define my_NAME "Fusion MPT SPI Host driver"
73 #define my_VERSION MPT_LINUX_VERSION_COMMON
74 #define MYNAM "mptspi"
75
76 MODULE_AUTHOR(MODULEAUTHOR);
77 MODULE_DESCRIPTION(my_NAME);
78 MODULE_LICENSE("GPL");
79 MODULE_VERSION(my_VERSION);
80
81 /* Command line args */
82 static int mpt_saf_te = MPTSCSIH_SAF_TE;
83 module_param(mpt_saf_te, int, 0);
84 MODULE_PARM_DESC(mpt_saf_te, " Force enabling SEP Processor: enable=1 (default=MPTSCSIH_SAF_TE=0)");
85
86 static void mptspi_write_offset(struct scsi_target *, int);
87 static void mptspi_write_width(struct scsi_target *, int);
88 static int mptspi_write_spi_device_pg1(struct scsi_target *,
89 struct _CONFIG_PAGE_SCSI_DEVICE_1 *);
90
91 static struct scsi_transport_template *mptspi_transport_template = NULL;
92
93 static int mptspiDoneCtx = -1;
94 static int mptspiTaskCtx = -1;
95 static int mptspiInternalCtx = -1; /* Used only for internal commands */
96
97 /**
98 * mptspi_setTargetNegoParms - Update the target negotiation parameters
99 * @hd: Pointer to a SCSI Host Structure
100 * @target: per target private data
101 * @sdev: SCSI device
102 *
103 * Update the target negotiation parameters based on the the Inquiry
104 * data, adapter capabilities, and NVRAM settings.
105 **/
106 static void
107 mptspi_setTargetNegoParms(MPT_SCSI_HOST *hd, VirtTarget *target,
108 struct scsi_device *sdev)
109 {
110 SpiCfgData *pspi_data = &hd->ioc->spi_data;
111 int id = (int) target->id;
112 int nvram;
113 u8 width = MPT_NARROW;
114 u8 factor = MPT_ASYNC;
115 u8 offset = 0;
116 u8 nfactor;
117 u8 noQas = 1;
118
119 target->negoFlags = pspi_data->noQas;
120
121 if (sdev->scsi_level < SCSI_2) {
122 width = 0;
123 factor = MPT_ULTRA2;
124 offset = pspi_data->maxSyncOffset;
125 target->tflags &= ~MPT_TARGET_FLAGS_Q_YES;
126 } else {
127 if (scsi_device_wide(sdev))
128 width = 1;
129
130 if (scsi_device_sync(sdev)) {
131 factor = pspi_data->minSyncFactor;
132 if (!scsi_device_dt(sdev))
133 factor = MPT_ULTRA2;
134 else {
135 if (!scsi_device_ius(sdev) &&
136 !scsi_device_qas(sdev))
137 factor = MPT_ULTRA160;
138 else {
139 factor = MPT_ULTRA320;
140 if (scsi_device_qas(sdev)) {
141 ddvprintk(hd->ioc,
142 printk(KERN_DEBUG "Enabling QAS due to "
143 "byte56=%02x on id=%d!\n", scsi_device_qas(sdev), id));
144 noQas = 0;
145 }
146 if (sdev->type == TYPE_TAPE &&
147 scsi_device_ius(sdev))
148 target->negoFlags |= MPT_TAPE_NEGO_IDP;
149 }
150 }
151 offset = pspi_data->maxSyncOffset;
152
153 /* If RAID, never disable QAS
154 * else if non RAID, do not disable
155 * QAS if bit 1 is set
156 * bit 1 QAS support, non-raid only
157 * bit 0 IU support
158 */
159 if (target->raidVolume == 1)
160 noQas = 0;
161 } else {
162 factor = MPT_ASYNC;
163 offset = 0;
164 }
165 }
166
167 if (!sdev->tagged_supported)
168 target->tflags &= ~MPT_TARGET_FLAGS_Q_YES;
169
170 /* Update tflags based on NVRAM settings. (SCSI only)
171 */
172 if (pspi_data->nvram && (pspi_data->nvram[id] != MPT_HOST_NVRAM_INVALID)) {
173 nvram = pspi_data->nvram[id];
174 nfactor = (nvram & MPT_NVRAM_SYNC_MASK) >> 8;
175
176 if (width)
177 width = nvram & MPT_NVRAM_WIDE_DISABLE ? 0 : 1;
178
179 if (offset > 0) {
180 /* Ensure factor is set to the
181 * maximum of: adapter, nvram, inquiry
182 */
183 if (nfactor) {
184 if (nfactor < pspi_data->minSyncFactor )
185 nfactor = pspi_data->minSyncFactor;
186
187 factor = max(factor, nfactor);
188 if (factor == MPT_ASYNC)
189 offset = 0;
190 } else {
191 offset = 0;
192 factor = MPT_ASYNC;
193 }
194 } else {
195 factor = MPT_ASYNC;
196 }
197 }
198
199 /* Make sure data is consistent
200 */
201 if ((!width) && (factor < MPT_ULTRA2))
202 factor = MPT_ULTRA2;
203
204 /* Save the data to the target structure.
205 */
206 target->minSyncFactor = factor;
207 target->maxOffset = offset;
208 target->maxWidth = width;
209
210 target->tflags |= MPT_TARGET_FLAGS_VALID_NEGO;
211
212 /* Disable unused features.
213 */
214 if (!width)
215 target->negoFlags |= MPT_TARGET_NO_NEGO_WIDE;
216
217 if (!offset)
218 target->negoFlags |= MPT_TARGET_NO_NEGO_SYNC;
219
220 if ( factor > MPT_ULTRA320 )
221 noQas = 0;
222
223 if (noQas && (pspi_data->noQas == 0)) {
224 pspi_data->noQas |= MPT_TARGET_NO_NEGO_QAS;
225 target->negoFlags |= MPT_TARGET_NO_NEGO_QAS;
226
227 /* Disable QAS in a mixed configuration case
228 */
229
230 ddvprintk(hd->ioc, printk(KERN_DEBUG
231 "Disabling QAS due to noQas=%02x on id=%d!\n", noQas, id));
232 }
233 }
234
235 /**
236 * mptspi_writeIOCPage4 - write IOC Page 4
237 * @hd: Pointer to a SCSI Host Structure
238 * @channel: channel number
239 * @id: write IOC Page4 for this ID & Bus
240 *
241 * Return: -EAGAIN if unable to obtain a Message Frame
242 * or 0 if success.
243 *
244 * Remark: We do not wait for a return, write pages sequentially.
245 **/
246 static int
247 mptspi_writeIOCPage4(MPT_SCSI_HOST *hd, u8 channel , u8 id)
248 {
249 MPT_ADAPTER *ioc = hd->ioc;
250 Config_t *pReq;
251 IOCPage4_t *IOCPage4Ptr;
252 MPT_FRAME_HDR *mf;
253 dma_addr_t dataDma;
254 u16 req_idx;
255 u32 frameOffset;
256 u32 flagsLength;
257 int ii;
258
259 /* Get a MF for this command.
260 */
261 if ((mf = mpt_get_msg_frame(ioc->DoneCtx, ioc)) == NULL) {
262 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT
263 "writeIOCPage4 : no msg frames!\n",ioc->name));
264 return -EAGAIN;
265 }
266
267 /* Set the request and the data pointers.
268 * Place data at end of MF.
269 */
270 pReq = (Config_t *)mf;
271
272 req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
273 frameOffset = ioc->req_sz - sizeof(IOCPage4_t);
274
275 /* Complete the request frame (same for all requests).
276 */
277 pReq->Action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT;
278 pReq->Reserved = 0;
279 pReq->ChainOffset = 0;
280 pReq->Function = MPI_FUNCTION_CONFIG;
281 pReq->ExtPageLength = 0;
282 pReq->ExtPageType = 0;
283 pReq->MsgFlags = 0;
284 for (ii=0; ii < 8; ii++) {
285 pReq->Reserved2[ii] = 0;
286 }
287
288 IOCPage4Ptr = ioc->spi_data.pIocPg4;
289 dataDma = ioc->spi_data.IocPg4_dma;
290 ii = IOCPage4Ptr->ActiveSEP++;
291 IOCPage4Ptr->SEP[ii].SEPTargetID = id;
292 IOCPage4Ptr->SEP[ii].SEPBus = channel;
293 pReq->Header = IOCPage4Ptr->Header;
294 pReq->PageAddress = cpu_to_le32(id | (channel << 8 ));
295
296 /* Add a SGE to the config request.
297 */
298 flagsLength = MPT_SGE_FLAGS_SSIMPLE_WRITE |
299 (IOCPage4Ptr->Header.PageLength + ii) * 4;
300
301 mpt_add_sge((char *)&pReq->PageBufferSGE, flagsLength, dataDma);
302
303 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT
304 "writeIOCPage4: MaxSEP=%d ActiveSEP=%d id=%d bus=%d\n",
305 ioc->name, IOCPage4Ptr->MaxSEP, IOCPage4Ptr->ActiveSEP, id, channel));
306
307 mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
308
309 return 0;
310 }
311
312 /**
313 * mptspi_initTarget - Target, LUN alloc/free functionality.
314 * @hd: Pointer to MPT_SCSI_HOST structure
315 * @vtarget: per target private data
316 * @sdev: SCSI device
317 *
318 * NOTE: It's only SAFE to call this routine if data points to
319 * sane & valid STANDARD INQUIRY data!
320 *
321 * Allocate and initialize memory for this target.
322 * Save inquiry data.
323 *
324 **/
325 static void
326 mptspi_initTarget(MPT_SCSI_HOST *hd, VirtTarget *vtarget,
327 struct scsi_device *sdev)
328 {
329
330 /* Is LUN supported? If so, upper 2 bits will be 0
331 * in first byte of inquiry data.
332 */
333 if (sdev->inq_periph_qual != 0)
334 return;
335
336 if (vtarget == NULL)
337 return;
338
339 vtarget->type = sdev->type;
340
341 if ((sdev->type == TYPE_PROCESSOR) && (hd->ioc->spi_data.Saf_Te)) {
342 /* Treat all Processors as SAF-TE if
343 * command line option is set */
344 vtarget->tflags |= MPT_TARGET_FLAGS_SAF_TE_ISSUED;
345 mptspi_writeIOCPage4(hd, vtarget->channel, vtarget->id);
346 }else if ((sdev->type == TYPE_PROCESSOR) &&
347 !(vtarget->tflags & MPT_TARGET_FLAGS_SAF_TE_ISSUED )) {
348 if (sdev->inquiry_len > 49 ) {
349 if (sdev->inquiry[44] == 'S' &&
350 sdev->inquiry[45] == 'A' &&
351 sdev->inquiry[46] == 'F' &&
352 sdev->inquiry[47] == '-' &&
353 sdev->inquiry[48] == 'T' &&
354 sdev->inquiry[49] == 'E' ) {
355 vtarget->tflags |= MPT_TARGET_FLAGS_SAF_TE_ISSUED;
356 mptspi_writeIOCPage4(hd, vtarget->channel, vtarget->id);
357 }
358 }
359 }
360 mptspi_setTargetNegoParms(hd, vtarget, sdev);
361 }
362
363 /**
364 * mptspi_is_raid - Determines whether target is belonging to volume
365 * @hd: Pointer to a SCSI HOST structure
366 * @id: target device id
367 *
368 * Return:
369 * non-zero = true
370 * zero = false
371 *
372 */
373 static int
374 mptspi_is_raid(struct _MPT_SCSI_HOST *hd, u32 id)
375 {
376 int i, rc = 0;
377
378 if (!hd->ioc->raid_data.pIocPg2)
379 goto out;
380
381 if (!hd->ioc->raid_data.pIocPg2->NumActiveVolumes)
382 goto out;
383 for (i=0; i < hd->ioc->raid_data.pIocPg2->NumActiveVolumes; i++) {
384 if (hd->ioc->raid_data.pIocPg2->RaidVolume[i].VolumeID == id) {
385 rc = 1;
386 goto out;
387 }
388 }
389
390 out:
391 return rc;
392 }
393
394 static int mptspi_target_alloc(struct scsi_target *starget)
395 {
396 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
397 struct _MPT_SCSI_HOST *hd = (struct _MPT_SCSI_HOST *)shost->hostdata;
398 VirtTarget *vtarget;
399
400 if (hd == NULL)
401 return -ENODEV;
402
403 vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL);
404 if (!vtarget)
405 return -ENOMEM;
406
407 vtarget->ioc_id = hd->ioc->id;
408 vtarget->tflags = MPT_TARGET_FLAGS_Q_YES;
409 vtarget->id = (u8)starget->id;
410 vtarget->channel = (u8)starget->channel;
411 vtarget->starget = starget;
412 starget->hostdata = vtarget;
413
414 if (starget->channel == 1) {
415 if (mptscsih_is_phys_disk(hd->ioc, 0, starget->id) == 0)
416 return 0;
417 vtarget->tflags |= MPT_TARGET_FLAGS_RAID_COMPONENT;
418 /* The real channel for this device is zero */
419 vtarget->channel = 0;
420 /* The actual physdisknum (for RAID passthrough) */
421 vtarget->id = mptscsih_raid_id_to_num(hd->ioc, 0,
422 starget->id);
423 }
424
425 if (starget->channel == 0 &&
426 mptspi_is_raid(hd, starget->id)) {
427 vtarget->raidVolume = 1;
428 ddvprintk(hd->ioc, printk(KERN_DEBUG
429 "RAID Volume @ channel=%d id=%d\n", starget->channel,
430 starget->id));
431 }
432
433 if (hd->ioc->spi_data.nvram &&
434 hd->ioc->spi_data.nvram[starget->id] != MPT_HOST_NVRAM_INVALID) {
435 u32 nvram = hd->ioc->spi_data.nvram[starget->id];
436 spi_min_period(starget) = (nvram & MPT_NVRAM_SYNC_MASK) >> MPT_NVRAM_SYNC_SHIFT;
437 spi_max_width(starget) = nvram & MPT_NVRAM_WIDE_DISABLE ? 0 : 1;
438 } else {
439 spi_min_period(starget) = hd->ioc->spi_data.minSyncFactor;
440 spi_max_width(starget) = hd->ioc->spi_data.maxBusWidth;
441 }
442 spi_max_offset(starget) = hd->ioc->spi_data.maxSyncOffset;
443
444 spi_offset(starget) = 0;
445 mptspi_write_width(starget, 0);
446
447 return 0;
448 }
449
450 static void
451 mptspi_target_destroy(struct scsi_target *starget)
452 {
453 if (starget->hostdata)
454 kfree(starget->hostdata);
455 starget->hostdata = NULL;
456 }
457
458 /**
459 * mptspi_print_write_nego - negotiation parameters debug info that is being sent
460 * @hd: Pointer to a SCSI HOST structure
461 * @starget: SCSI target
462 * @ii: negotiation parameters
463 *
464 */
465 static void
466 mptspi_print_write_nego(struct _MPT_SCSI_HOST *hd, struct scsi_target *starget, u32 ii)
467 {
468 ddvprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "id=%d Requested = 0x%08x"
469 " ( %s factor = 0x%02x @ offset = 0x%02x %s%s%s%s%s%s%s%s)\n",
470 hd->ioc->name, starget->id, ii,
471 ii & MPI_SCSIDEVPAGE0_NP_WIDE ? "Wide ": "",
472 ((ii >> 8) & 0xFF), ((ii >> 16) & 0xFF),
473 ii & MPI_SCSIDEVPAGE0_NP_IU ? "IU ": "",
474 ii & MPI_SCSIDEVPAGE0_NP_DT ? "DT ": "",
475 ii & MPI_SCSIDEVPAGE0_NP_QAS ? "QAS ": "",
476 ii & MPI_SCSIDEVPAGE0_NP_HOLD_MCS ? "HOLDMCS ": "",
477 ii & MPI_SCSIDEVPAGE0_NP_WR_FLOW ? "WRFLOW ": "",
478 ii & MPI_SCSIDEVPAGE0_NP_RD_STRM ? "RDSTRM ": "",
479 ii & MPI_SCSIDEVPAGE0_NP_RTI ? "RTI ": "",
480 ii & MPI_SCSIDEVPAGE0_NP_PCOMP_EN ? "PCOMP ": ""));
481 }
482
483 /**
484 * mptspi_print_read_nego - negotiation parameters debug info that is being read
485 * @hd: Pointer to a SCSI HOST structure
486 * @starget: SCSI target
487 * @ii: negotiation parameters
488 *
489 */
490 static void
491 mptspi_print_read_nego(struct _MPT_SCSI_HOST *hd, struct scsi_target *starget, u32 ii)
492 {
493 ddvprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "id=%d Read = 0x%08x"
494 " ( %s factor = 0x%02x @ offset = 0x%02x %s%s%s%s%s%s%s%s)\n",
495 hd->ioc->name, starget->id, ii,
496 ii & MPI_SCSIDEVPAGE0_NP_WIDE ? "Wide ": "",
497 ((ii >> 8) & 0xFF), ((ii >> 16) & 0xFF),
498 ii & MPI_SCSIDEVPAGE0_NP_IU ? "IU ": "",
499 ii & MPI_SCSIDEVPAGE0_NP_DT ? "DT ": "",
500 ii & MPI_SCSIDEVPAGE0_NP_QAS ? "QAS ": "",
501 ii & MPI_SCSIDEVPAGE0_NP_HOLD_MCS ? "HOLDMCS ": "",
502 ii & MPI_SCSIDEVPAGE0_NP_WR_FLOW ? "WRFLOW ": "",
503 ii & MPI_SCSIDEVPAGE0_NP_RD_STRM ? "RDSTRM ": "",
504 ii & MPI_SCSIDEVPAGE0_NP_RTI ? "RTI ": "",
505 ii & MPI_SCSIDEVPAGE0_NP_PCOMP_EN ? "PCOMP ": ""));
506 }
507
508 static int mptspi_read_spi_device_pg0(struct scsi_target *starget,
509 struct _CONFIG_PAGE_SCSI_DEVICE_0 *pass_pg0)
510 {
511 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
512 struct _MPT_SCSI_HOST *hd = (struct _MPT_SCSI_HOST *)shost->hostdata;
513 struct _MPT_ADAPTER *ioc = hd->ioc;
514 struct _CONFIG_PAGE_SCSI_DEVICE_0 *pg0;
515 dma_addr_t pg0_dma;
516 int size;
517 struct _x_config_parms cfg;
518 struct _CONFIG_PAGE_HEADER hdr;
519 int err = -EBUSY;
520
521 /* No SPI parameters for RAID devices */
522 if (starget->channel == 0 &&
523 mptspi_is_raid(hd, starget->id))
524 return -1;
525
526 size = ioc->spi_data.sdp0length * 4;
527 /*
528 if (ioc->spi_data.sdp0length & 1)
529 size += size + 4;
530 size += 2048;
531 */
532
533 pg0 = dma_alloc_coherent(&ioc->pcidev->dev, size, &pg0_dma, GFP_KERNEL);
534 if (pg0 == NULL) {
535 starget_printk(KERN_ERR, starget, "dma_alloc_coherent for parameters failed\n");
536 return -EINVAL;
537 }
538
539 memset(&hdr, 0, sizeof(hdr));
540
541 hdr.PageVersion = ioc->spi_data.sdp0version;
542 hdr.PageLength = ioc->spi_data.sdp0length;
543 hdr.PageNumber = 0;
544 hdr.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE;
545
546 memset(&cfg, 0, sizeof(cfg));
547
548 cfg.cfghdr.hdr = &hdr;
549 cfg.physAddr = pg0_dma;
550 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
551 cfg.dir = 0;
552 cfg.pageAddr = starget->id;
553
554 if (mpt_config(ioc, &cfg)) {
555 starget_printk(KERN_ERR, starget, "mpt_config failed\n");
556 goto out_free;
557 }
558 err = 0;
559 memcpy(pass_pg0, pg0, size);
560
561 mptspi_print_read_nego(hd, starget, le32_to_cpu(pg0->NegotiatedParameters));
562
563 out_free:
564 dma_free_coherent(&ioc->pcidev->dev, size, pg0, pg0_dma);
565 return err;
566 }
567
568 static u32 mptspi_getRP(struct scsi_target *starget)
569 {
570 u32 nego = 0;
571
572 nego |= spi_iu(starget) ? MPI_SCSIDEVPAGE1_RP_IU : 0;
573 nego |= spi_dt(starget) ? MPI_SCSIDEVPAGE1_RP_DT : 0;
574 nego |= spi_qas(starget) ? MPI_SCSIDEVPAGE1_RP_QAS : 0;
575 nego |= spi_hold_mcs(starget) ? MPI_SCSIDEVPAGE1_RP_HOLD_MCS : 0;
576 nego |= spi_wr_flow(starget) ? MPI_SCSIDEVPAGE1_RP_WR_FLOW : 0;
577 nego |= spi_rd_strm(starget) ? MPI_SCSIDEVPAGE1_RP_RD_STRM : 0;
578 nego |= spi_rti(starget) ? MPI_SCSIDEVPAGE1_RP_RTI : 0;
579 nego |= spi_pcomp_en(starget) ? MPI_SCSIDEVPAGE1_RP_PCOMP_EN : 0;
580
581 nego |= (spi_period(starget) << MPI_SCSIDEVPAGE1_RP_SHIFT_MIN_SYNC_PERIOD) & MPI_SCSIDEVPAGE1_RP_MIN_SYNC_PERIOD_MASK;
582 nego |= (spi_offset(starget) << MPI_SCSIDEVPAGE1_RP_SHIFT_MAX_SYNC_OFFSET) & MPI_SCSIDEVPAGE1_RP_MAX_SYNC_OFFSET_MASK;
583 nego |= spi_width(starget) ? MPI_SCSIDEVPAGE1_RP_WIDE : 0;
584
585 return nego;
586 }
587
588 static void mptspi_read_parameters(struct scsi_target *starget)
589 {
590 int nego;
591 struct _CONFIG_PAGE_SCSI_DEVICE_0 pg0;
592
593 mptspi_read_spi_device_pg0(starget, &pg0);
594
595 nego = le32_to_cpu(pg0.NegotiatedParameters);
596
597 spi_iu(starget) = (nego & MPI_SCSIDEVPAGE0_NP_IU) ? 1 : 0;
598 spi_dt(starget) = (nego & MPI_SCSIDEVPAGE0_NP_DT) ? 1 : 0;
599 spi_qas(starget) = (nego & MPI_SCSIDEVPAGE0_NP_QAS) ? 1 : 0;
600 spi_wr_flow(starget) = (nego & MPI_SCSIDEVPAGE0_NP_WR_FLOW) ? 1 : 0;
601 spi_rd_strm(starget) = (nego & MPI_SCSIDEVPAGE0_NP_RD_STRM) ? 1 : 0;
602 spi_rti(starget) = (nego & MPI_SCSIDEVPAGE0_NP_RTI) ? 1 : 0;
603 spi_pcomp_en(starget) = (nego & MPI_SCSIDEVPAGE0_NP_PCOMP_EN) ? 1 : 0;
604 spi_hold_mcs(starget) = (nego & MPI_SCSIDEVPAGE0_NP_HOLD_MCS) ? 1 : 0;
605 spi_period(starget) = (nego & MPI_SCSIDEVPAGE0_NP_NEG_SYNC_PERIOD_MASK) >> MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_PERIOD;
606 spi_offset(starget) = (nego & MPI_SCSIDEVPAGE0_NP_NEG_SYNC_OFFSET_MASK) >> MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_OFFSET;
607 spi_width(starget) = (nego & MPI_SCSIDEVPAGE0_NP_WIDE) ? 1 : 0;
608 }
609
610 static int
611 mptscsih_quiesce_raid(MPT_SCSI_HOST *hd, int quiesce, u8 channel, u8 id)
612 {
613 MpiRaidActionRequest_t *pReq;
614 MPT_FRAME_HDR *mf;
615
616 /* Get and Populate a free Frame
617 */
618 if ((mf = mpt_get_msg_frame(hd->ioc->InternalCtx, hd->ioc)) == NULL) {
619 ddvprintk(hd->ioc, printk(MYIOC_s_WARN_FMT "_do_raid: no msg frames!\n",
620 hd->ioc->name));
621 return -EAGAIN;
622 }
623 pReq = (MpiRaidActionRequest_t *)mf;
624 if (quiesce)
625 pReq->Action = MPI_RAID_ACTION_QUIESCE_PHYS_IO;
626 else
627 pReq->Action = MPI_RAID_ACTION_ENABLE_PHYS_IO;
628 pReq->Reserved1 = 0;
629 pReq->ChainOffset = 0;
630 pReq->Function = MPI_FUNCTION_RAID_ACTION;
631 pReq->VolumeID = id;
632 pReq->VolumeBus = channel;
633 pReq->PhysDiskNum = 0;
634 pReq->MsgFlags = 0;
635 pReq->Reserved2 = 0;
636 pReq->ActionDataWord = 0; /* Reserved for this action */
637
638 mpt_add_sge((char *)&pReq->ActionDataSGE,
639 MPT_SGE_FLAGS_SSIMPLE_READ | 0, (dma_addr_t) -1);
640
641 ddvprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "RAID Volume action=%x channel=%d id=%d\n",
642 hd->ioc->name, pReq->Action, channel, id));
643
644 hd->pLocal = NULL;
645 hd->timer.expires = jiffies + HZ*10; /* 10 second timeout */
646 hd->scandv_wait_done = 0;
647
648 /* Save cmd pointer, for resource free if timeout or
649 * FW reload occurs
650 */
651 hd->cmdPtr = mf;
652
653 add_timer(&hd->timer);
654 mpt_put_msg_frame(hd->ioc->InternalCtx, hd->ioc, mf);
655 wait_event(hd->scandv_waitq, hd->scandv_wait_done);
656
657 if ((hd->pLocal == NULL) || (hd->pLocal->completion != 0))
658 return -1;
659
660 return 0;
661 }
662
663 static void mptspi_dv_device(struct _MPT_SCSI_HOST *hd,
664 struct scsi_device *sdev)
665 {
666 VirtTarget *vtarget = scsi_target(sdev)->hostdata;
667
668 /* no DV on RAID devices */
669 if (sdev->channel == 0 &&
670 mptspi_is_raid(hd, sdev->id))
671 return;
672
673 /* If this is a piece of a RAID, then quiesce first */
674 if (sdev->channel == 1 &&
675 mptscsih_quiesce_raid(hd, 1, vtarget->channel, vtarget->id) < 0) {
676 starget_printk(KERN_ERR, scsi_target(sdev),
677 "Integrated RAID quiesce failed\n");
678 return;
679 }
680
681 hd->spi_pending |= (1 << sdev->id);
682 spi_dv_device(sdev);
683 hd->spi_pending &= ~(1 << sdev->id);
684
685 if (sdev->channel == 1 &&
686 mptscsih_quiesce_raid(hd, 0, vtarget->channel, vtarget->id) < 0)
687 starget_printk(KERN_ERR, scsi_target(sdev),
688 "Integrated RAID resume failed\n");
689
690 mptspi_read_parameters(sdev->sdev_target);
691 spi_display_xfer_agreement(sdev->sdev_target);
692 mptspi_read_parameters(sdev->sdev_target);
693 }
694
695 static int mptspi_slave_alloc(struct scsi_device *sdev)
696 {
697 MPT_SCSI_HOST *hd = (MPT_SCSI_HOST *)sdev->host->hostdata;
698 VirtTarget *vtarget;
699 VirtDevice *vdev;
700 struct scsi_target *starget;
701
702 if (sdev->channel == 1 &&
703 mptscsih_is_phys_disk(hd->ioc, 0, sdev->id) == 0)
704 return -ENXIO;
705
706 vdev = kzalloc(sizeof(VirtDevice), GFP_KERNEL);
707 if (!vdev) {
708 printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n",
709 hd->ioc->name, sizeof(VirtDevice));
710 return -ENOMEM;
711 }
712
713 vdev->lun = sdev->lun;
714 sdev->hostdata = vdev;
715
716 starget = scsi_target(sdev);
717 vtarget = starget->hostdata;
718 vdev->vtarget = vtarget;
719 vtarget->num_luns++;
720
721 if (sdev->channel == 1)
722 sdev->no_uld_attach = 1;
723
724 return 0;
725 }
726
727 static int mptspi_slave_configure(struct scsi_device *sdev)
728 {
729 struct _MPT_SCSI_HOST *hd =
730 (struct _MPT_SCSI_HOST *)sdev->host->hostdata;
731 VirtTarget *vtarget = scsi_target(sdev)->hostdata;
732 int ret;
733
734 mptspi_initTarget(hd, vtarget, sdev);
735
736 ret = mptscsih_slave_configure(sdev);
737
738 if (ret)
739 return ret;
740
741 ddvprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "id=%d min_period=0x%02x"
742 " max_offset=0x%02x max_width=%d\n", hd->ioc->name,
743 sdev->id, spi_min_period(scsi_target(sdev)),
744 spi_max_offset(scsi_target(sdev)),
745 spi_max_width(scsi_target(sdev))));
746
747 if ((sdev->channel == 1 ||
748 !(mptspi_is_raid(hd, sdev->id))) &&
749 !spi_initial_dv(sdev->sdev_target))
750 mptspi_dv_device(hd, sdev);
751
752 return 0;
753 }
754
755 static int
756 mptspi_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
757 {
758 struct _MPT_SCSI_HOST *hd = (MPT_SCSI_HOST *) SCpnt->device->host->hostdata;
759 VirtDevice *vdev = SCpnt->device->hostdata;
760
761 if (!vdev || !vdev->vtarget) {
762 SCpnt->result = DID_NO_CONNECT << 16;
763 done(SCpnt);
764 return 0;
765 }
766
767 if (SCpnt->device->channel == 1 &&
768 mptscsih_is_phys_disk(hd->ioc, 0, SCpnt->device->id) == 0) {
769 SCpnt->result = DID_NO_CONNECT << 16;
770 done(SCpnt);
771 return 0;
772 }
773
774 if (spi_dv_pending(scsi_target(SCpnt->device)))
775 ddvprintk(hd->ioc, scsi_print_command(SCpnt));
776
777 return mptscsih_qcmd(SCpnt,done);
778 }
779
780 static void mptspi_slave_destroy(struct scsi_device *sdev)
781 {
782 struct scsi_target *starget = scsi_target(sdev);
783 VirtTarget *vtarget = starget->hostdata;
784 VirtDevice *vdevice = sdev->hostdata;
785
786 /* Will this be the last lun on a non-raid device? */
787 if (vtarget->num_luns == 1 && vdevice->configured_lun) {
788 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
789
790 /* Async Narrow */
791 pg1.RequestedParameters = 0;
792 pg1.Reserved = 0;
793 pg1.Configuration = 0;
794
795 mptspi_write_spi_device_pg1(starget, &pg1);
796 }
797
798 mptscsih_slave_destroy(sdev);
799 }
800
801 static struct scsi_host_template mptspi_driver_template = {
802 .module = THIS_MODULE,
803 .proc_name = "mptspi",
804 .proc_info = mptscsih_proc_info,
805 .name = "MPT SPI Host",
806 .info = mptscsih_info,
807 .queuecommand = mptspi_qcmd,
808 .target_alloc = mptspi_target_alloc,
809 .slave_alloc = mptspi_slave_alloc,
810 .slave_configure = mptspi_slave_configure,
811 .target_destroy = mptspi_target_destroy,
812 .slave_destroy = mptspi_slave_destroy,
813 .change_queue_depth = mptscsih_change_queue_depth,
814 .eh_abort_handler = mptscsih_abort,
815 .eh_device_reset_handler = mptscsih_dev_reset,
816 .eh_bus_reset_handler = mptscsih_bus_reset,
817 .eh_host_reset_handler = mptscsih_host_reset,
818 .bios_param = mptscsih_bios_param,
819 .can_queue = MPT_SCSI_CAN_QUEUE,
820 .this_id = -1,
821 .sg_tablesize = MPT_SCSI_SG_DEPTH,
822 .max_sectors = 8192,
823 .cmd_per_lun = 7,
824 .use_clustering = ENABLE_CLUSTERING,
825 .shost_attrs = mptscsih_host_attrs,
826 };
827
828 static int mptspi_write_spi_device_pg1(struct scsi_target *starget,
829 struct _CONFIG_PAGE_SCSI_DEVICE_1 *pass_pg1)
830 {
831 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
832 struct _MPT_SCSI_HOST *hd = (struct _MPT_SCSI_HOST *)shost->hostdata;
833 struct _MPT_ADAPTER *ioc = hd->ioc;
834 struct _CONFIG_PAGE_SCSI_DEVICE_1 *pg1;
835 dma_addr_t pg1_dma;
836 int size;
837 struct _x_config_parms cfg;
838 struct _CONFIG_PAGE_HEADER hdr;
839 int err = -EBUSY;
840
841 /* don't allow updating nego parameters on RAID devices */
842 if (starget->channel == 0 &&
843 mptspi_is_raid(hd, starget->id))
844 return -1;
845
846 size = ioc->spi_data.sdp1length * 4;
847
848 pg1 = dma_alloc_coherent(&ioc->pcidev->dev, size, &pg1_dma, GFP_KERNEL);
849 if (pg1 == NULL) {
850 starget_printk(KERN_ERR, starget, "dma_alloc_coherent for parameters failed\n");
851 return -EINVAL;
852 }
853
854 memset(&hdr, 0, sizeof(hdr));
855
856 hdr.PageVersion = ioc->spi_data.sdp1version;
857 hdr.PageLength = ioc->spi_data.sdp1length;
858 hdr.PageNumber = 1;
859 hdr.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE;
860
861 memset(&cfg, 0, sizeof(cfg));
862
863 cfg.cfghdr.hdr = &hdr;
864 cfg.physAddr = pg1_dma;
865 cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT;
866 cfg.dir = 1;
867 cfg.pageAddr = starget->id;
868
869 memcpy(pg1, pass_pg1, size);
870
871 pg1->Header.PageVersion = hdr.PageVersion;
872 pg1->Header.PageLength = hdr.PageLength;
873 pg1->Header.PageNumber = hdr.PageNumber;
874 pg1->Header.PageType = hdr.PageType;
875
876 mptspi_print_write_nego(hd, starget, le32_to_cpu(pg1->RequestedParameters));
877
878 if (mpt_config(ioc, &cfg)) {
879 starget_printk(KERN_ERR, starget, "mpt_config failed\n");
880 goto out_free;
881 }
882 err = 0;
883
884 out_free:
885 dma_free_coherent(&ioc->pcidev->dev, size, pg1, pg1_dma);
886 return err;
887 }
888
889 static void mptspi_write_offset(struct scsi_target *starget, int offset)
890 {
891 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
892 u32 nego;
893
894 if (offset < 0)
895 offset = 0;
896
897 if (offset > 255)
898 offset = 255;
899
900 if (spi_offset(starget) == -1)
901 mptspi_read_parameters(starget);
902
903 spi_offset(starget) = offset;
904
905 nego = mptspi_getRP(starget);
906
907 pg1.RequestedParameters = cpu_to_le32(nego);
908 pg1.Reserved = 0;
909 pg1.Configuration = 0;
910
911 mptspi_write_spi_device_pg1(starget, &pg1);
912 }
913
914 static void mptspi_write_period(struct scsi_target *starget, int period)
915 {
916 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
917 u32 nego;
918
919 if (period < 8)
920 period = 8;
921
922 if (period > 255)
923 period = 255;
924
925 if (spi_period(starget) == -1)
926 mptspi_read_parameters(starget);
927
928 if (period == 8) {
929 spi_iu(starget) = 1;
930 spi_dt(starget) = 1;
931 } else if (period == 9) {
932 spi_dt(starget) = 1;
933 }
934
935 spi_period(starget) = period;
936
937 nego = mptspi_getRP(starget);
938
939 pg1.RequestedParameters = cpu_to_le32(nego);
940 pg1.Reserved = 0;
941 pg1.Configuration = 0;
942
943 mptspi_write_spi_device_pg1(starget, &pg1);
944 }
945
946 static void mptspi_write_dt(struct scsi_target *starget, int dt)
947 {
948 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
949 u32 nego;
950
951 if (spi_period(starget) == -1)
952 mptspi_read_parameters(starget);
953
954 if (!dt && spi_period(starget) < 10)
955 spi_period(starget) = 10;
956
957 spi_dt(starget) = dt;
958
959 nego = mptspi_getRP(starget);
960
961
962 pg1.RequestedParameters = cpu_to_le32(nego);
963 pg1.Reserved = 0;
964 pg1.Configuration = 0;
965
966 mptspi_write_spi_device_pg1(starget, &pg1);
967 }
968
969 static void mptspi_write_iu(struct scsi_target *starget, int iu)
970 {
971 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
972 u32 nego;
973
974 if (spi_period(starget) == -1)
975 mptspi_read_parameters(starget);
976
977 if (!iu && spi_period(starget) < 9)
978 spi_period(starget) = 9;
979
980 spi_iu(starget) = iu;
981
982 nego = mptspi_getRP(starget);
983
984 pg1.RequestedParameters = cpu_to_le32(nego);
985 pg1.Reserved = 0;
986 pg1.Configuration = 0;
987
988 mptspi_write_spi_device_pg1(starget, &pg1);
989 }
990
991 #define MPTSPI_SIMPLE_TRANSPORT_PARM(parm) \
992 static void mptspi_write_##parm(struct scsi_target *starget, int parm)\
993 { \
994 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; \
995 u32 nego; \
996 \
997 spi_##parm(starget) = parm; \
998 \
999 nego = mptspi_getRP(starget); \
1000 \
1001 pg1.RequestedParameters = cpu_to_le32(nego); \
1002 pg1.Reserved = 0; \
1003 pg1.Configuration = 0; \
1004 \
1005 mptspi_write_spi_device_pg1(starget, &pg1); \
1006 }
1007
1008 MPTSPI_SIMPLE_TRANSPORT_PARM(rd_strm)
1009 MPTSPI_SIMPLE_TRANSPORT_PARM(wr_flow)
1010 MPTSPI_SIMPLE_TRANSPORT_PARM(rti)
1011 MPTSPI_SIMPLE_TRANSPORT_PARM(hold_mcs)
1012 MPTSPI_SIMPLE_TRANSPORT_PARM(pcomp_en)
1013
1014 static void mptspi_write_qas(struct scsi_target *starget, int qas)
1015 {
1016 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
1017 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
1018 struct _MPT_SCSI_HOST *hd = (struct _MPT_SCSI_HOST *)shost->hostdata;
1019 VirtTarget *vtarget = starget->hostdata;
1020 u32 nego;
1021
1022 if ((vtarget->negoFlags & MPT_TARGET_NO_NEGO_QAS) ||
1023 hd->ioc->spi_data.noQas)
1024 spi_qas(starget) = 0;
1025 else
1026 spi_qas(starget) = qas;
1027
1028 nego = mptspi_getRP(starget);
1029
1030 pg1.RequestedParameters = cpu_to_le32(nego);
1031 pg1.Reserved = 0;
1032 pg1.Configuration = 0;
1033
1034 mptspi_write_spi_device_pg1(starget, &pg1);
1035 }
1036
1037 static void mptspi_write_width(struct scsi_target *starget, int width)
1038 {
1039 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
1040 u32 nego;
1041
1042 if (!width) {
1043 spi_dt(starget) = 0;
1044 if (spi_period(starget) < 10)
1045 spi_period(starget) = 10;
1046 }
1047
1048 spi_width(starget) = width;
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 struct work_queue_wrapper {
1060 struct work_struct work;
1061 struct _MPT_SCSI_HOST *hd;
1062 int disk;
1063 };
1064
1065 static void mpt_work_wrapper(struct work_struct *work)
1066 {
1067 struct work_queue_wrapper *wqw =
1068 container_of(work, struct work_queue_wrapper, work);
1069 struct _MPT_SCSI_HOST *hd = wqw->hd;
1070 struct Scsi_Host *shost = hd->ioc->sh;
1071 struct scsi_device *sdev;
1072 int disk = wqw->disk;
1073 struct _CONFIG_PAGE_IOC_3 *pg3;
1074
1075 kfree(wqw);
1076
1077 mpt_findImVolumes(hd->ioc);
1078 pg3 = hd->ioc->raid_data.pIocPg3;
1079 if (!pg3)
1080 return;
1081
1082 shost_for_each_device(sdev,shost) {
1083 struct scsi_target *starget = scsi_target(sdev);
1084 VirtTarget *vtarget = starget->hostdata;
1085
1086 /* only want to search RAID components */
1087 if (sdev->channel != 1)
1088 continue;
1089
1090 /* The id is the raid PhysDiskNum, even if
1091 * starget->id is the actual target address */
1092 if(vtarget->id != disk)
1093 continue;
1094
1095 starget_printk(KERN_INFO, vtarget->starget,
1096 "Integrated RAID requests DV of new device\n");
1097 mptspi_dv_device(hd, sdev);
1098 }
1099 shost_printk(KERN_INFO, shost,
1100 "Integrated RAID detects new device %d\n", disk);
1101 scsi_scan_target(&hd->ioc->sh->shost_gendev, 1, disk, 0, 1);
1102 }
1103
1104
1105 static void mpt_dv_raid(struct _MPT_SCSI_HOST *hd, int disk)
1106 {
1107 struct work_queue_wrapper *wqw = kmalloc(sizeof(*wqw), GFP_ATOMIC);
1108
1109 if (!wqw) {
1110 shost_printk(KERN_ERR, hd->ioc->sh,
1111 "Failed to act on RAID event for physical disk %d\n",
1112 disk);
1113 return;
1114 }
1115 INIT_WORK(&wqw->work, mpt_work_wrapper);
1116 wqw->hd = hd;
1117 wqw->disk = disk;
1118
1119 schedule_work(&wqw->work);
1120 }
1121
1122 static int
1123 mptspi_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
1124 {
1125 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
1126 struct _MPT_SCSI_HOST *hd = (struct _MPT_SCSI_HOST *)ioc->sh->hostdata;
1127
1128 if (hd && event == MPI_EVENT_INTEGRATED_RAID) {
1129 int reason
1130 = (le32_to_cpu(pEvReply->Data[0]) & 0x00FF0000) >> 16;
1131
1132 if (reason == MPI_EVENT_RAID_RC_DOMAIN_VAL_NEEDED) {
1133 int disk = (le32_to_cpu(pEvReply->Data[0]) & 0xFF000000) >> 24;
1134 mpt_dv_raid(hd, disk);
1135 }
1136 }
1137 return mptscsih_event_process(ioc, pEvReply);
1138 }
1139
1140 static int
1141 mptspi_deny_binding(struct scsi_target *starget)
1142 {
1143 struct _MPT_SCSI_HOST *hd =
1144 (struct _MPT_SCSI_HOST *)dev_to_shost(starget->dev.parent)->hostdata;
1145 return ((mptspi_is_raid(hd, starget->id)) &&
1146 starget->channel == 0) ? 1 : 0;
1147 }
1148
1149 static struct spi_function_template mptspi_transport_functions = {
1150 .get_offset = mptspi_read_parameters,
1151 .set_offset = mptspi_write_offset,
1152 .show_offset = 1,
1153 .get_period = mptspi_read_parameters,
1154 .set_period = mptspi_write_period,
1155 .show_period = 1,
1156 .get_width = mptspi_read_parameters,
1157 .set_width = mptspi_write_width,
1158 .show_width = 1,
1159 .get_iu = mptspi_read_parameters,
1160 .set_iu = mptspi_write_iu,
1161 .show_iu = 1,
1162 .get_dt = mptspi_read_parameters,
1163 .set_dt = mptspi_write_dt,
1164 .show_dt = 1,
1165 .get_qas = mptspi_read_parameters,
1166 .set_qas = mptspi_write_qas,
1167 .show_qas = 1,
1168 .get_wr_flow = mptspi_read_parameters,
1169 .set_wr_flow = mptspi_write_wr_flow,
1170 .show_wr_flow = 1,
1171 .get_rd_strm = mptspi_read_parameters,
1172 .set_rd_strm = mptspi_write_rd_strm,
1173 .show_rd_strm = 1,
1174 .get_rti = mptspi_read_parameters,
1175 .set_rti = mptspi_write_rti,
1176 .show_rti = 1,
1177 .get_pcomp_en = mptspi_read_parameters,
1178 .set_pcomp_en = mptspi_write_pcomp_en,
1179 .show_pcomp_en = 1,
1180 .get_hold_mcs = mptspi_read_parameters,
1181 .set_hold_mcs = mptspi_write_hold_mcs,
1182 .show_hold_mcs = 1,
1183 .deny_binding = mptspi_deny_binding,
1184 };
1185
1186 /****************************************************************************
1187 * Supported hardware
1188 */
1189
1190 static struct pci_device_id mptspi_pci_table[] = {
1191 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_53C1030,
1192 PCI_ANY_ID, PCI_ANY_ID },
1193 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_53C1035,
1194 PCI_ANY_ID, PCI_ANY_ID },
1195 {0} /* Terminating entry */
1196 };
1197 MODULE_DEVICE_TABLE(pci, mptspi_pci_table);
1198
1199
1200 /*
1201 * renegotiate for a given target
1202 */
1203 static void
1204 mptspi_dv_renegotiate_work(struct work_struct *work)
1205 {
1206 struct work_queue_wrapper *wqw =
1207 container_of(work, struct work_queue_wrapper, work);
1208 struct _MPT_SCSI_HOST *hd = wqw->hd;
1209 struct scsi_device *sdev;
1210 struct scsi_target *starget;
1211 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
1212 u32 nego;
1213
1214 kfree(wqw);
1215
1216 if (hd->spi_pending) {
1217 shost_for_each_device(sdev, hd->ioc->sh) {
1218 if (hd->spi_pending & (1 << sdev->id))
1219 continue;
1220 starget = scsi_target(sdev);
1221 nego = mptspi_getRP(starget);
1222 pg1.RequestedParameters = cpu_to_le32(nego);
1223 pg1.Reserved = 0;
1224 pg1.Configuration = 0;
1225 mptspi_write_spi_device_pg1(starget, &pg1);
1226 }
1227 } else {
1228 shost_for_each_device(sdev, hd->ioc->sh)
1229 mptspi_dv_device(hd, sdev);
1230 }
1231 }
1232
1233 static void
1234 mptspi_dv_renegotiate(struct _MPT_SCSI_HOST *hd)
1235 {
1236 struct work_queue_wrapper *wqw = kmalloc(sizeof(*wqw), GFP_ATOMIC);
1237
1238 if (!wqw)
1239 return;
1240
1241 INIT_WORK(&wqw->work, mptspi_dv_renegotiate_work);
1242 wqw->hd = hd;
1243
1244 schedule_work(&wqw->work);
1245 }
1246
1247 /*
1248 * spi module reset handler
1249 */
1250 static int
1251 mptspi_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
1252 {
1253 struct _MPT_SCSI_HOST *hd = (struct _MPT_SCSI_HOST *)ioc->sh->hostdata;
1254 int rc;
1255
1256 rc = mptscsih_ioc_reset(ioc, reset_phase);
1257
1258 if (reset_phase == MPT_IOC_POST_RESET)
1259 mptspi_dv_renegotiate(hd);
1260
1261 return rc;
1262 }
1263
1264 #ifdef CONFIG_PM
1265 /*
1266 * spi module resume handler
1267 */
1268 static int
1269 mptspi_resume(struct pci_dev *pdev)
1270 {
1271 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1272 struct _MPT_SCSI_HOST *hd = (struct _MPT_SCSI_HOST *)ioc->sh->hostdata;
1273 int rc;
1274
1275 rc = mptscsih_resume(pdev);
1276 mptspi_dv_renegotiate(hd);
1277
1278 return rc;
1279 }
1280 #endif
1281
1282 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1283 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1284 /*
1285 * mptspi_probe - Installs scsi devices per bus.
1286 * @pdev: Pointer to pci_dev structure
1287 *
1288 * Returns 0 for success, non-zero for failure.
1289 *
1290 */
1291 static int
1292 mptspi_probe(struct pci_dev *pdev, const struct pci_device_id *id)
1293 {
1294 struct Scsi_Host *sh;
1295 MPT_SCSI_HOST *hd;
1296 MPT_ADAPTER *ioc;
1297 unsigned long flags;
1298 int ii;
1299 int numSGE = 0;
1300 int scale;
1301 int ioc_cap;
1302 int error=0;
1303 int r;
1304
1305 if ((r = mpt_attach(pdev,id)) != 0)
1306 return r;
1307
1308 ioc = pci_get_drvdata(pdev);
1309 ioc->DoneCtx = mptspiDoneCtx;
1310 ioc->TaskCtx = mptspiTaskCtx;
1311 ioc->InternalCtx = mptspiInternalCtx;
1312
1313 /* Added sanity check on readiness of the MPT adapter.
1314 */
1315 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) {
1316 printk(MYIOC_s_WARN_FMT
1317 "Skipping because it's not operational!\n",
1318 ioc->name);
1319 error = -ENODEV;
1320 goto out_mptspi_probe;
1321 }
1322
1323 if (!ioc->active) {
1324 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n",
1325 ioc->name);
1326 error = -ENODEV;
1327 goto out_mptspi_probe;
1328 }
1329
1330 /* Sanity check - ensure at least 1 port is INITIATOR capable
1331 */
1332 ioc_cap = 0;
1333 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1334 if (ioc->pfacts[ii].ProtocolFlags &
1335 MPI_PORTFACTS_PROTOCOL_INITIATOR)
1336 ioc_cap ++;
1337 }
1338
1339 if (!ioc_cap) {
1340 printk(MYIOC_s_WARN_FMT
1341 "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n",
1342 ioc->name, ioc);
1343 return 0;
1344 }
1345
1346 sh = scsi_host_alloc(&mptspi_driver_template, sizeof(MPT_SCSI_HOST));
1347
1348 if (!sh) {
1349 printk(MYIOC_s_WARN_FMT
1350 "Unable to register controller with SCSI subsystem\n",
1351 ioc->name);
1352 error = -1;
1353 goto out_mptspi_probe;
1354 }
1355
1356 spin_lock_irqsave(&ioc->FreeQlock, flags);
1357
1358 /* Attach the SCSI Host to the IOC structure
1359 */
1360 ioc->sh = sh;
1361
1362 sh->io_port = 0;
1363 sh->n_io_port = 0;
1364 sh->irq = 0;
1365
1366 /* set 16 byte cdb's */
1367 sh->max_cmd_len = 16;
1368
1369 /* Yikes! This is important!
1370 * Otherwise, by default, linux
1371 * only scans target IDs 0-7!
1372 * pfactsN->MaxDevices unreliable
1373 * (not supported in early
1374 * versions of the FW).
1375 * max_id = 1 + actual max id,
1376 * max_lun = 1 + actual last lun,
1377 * see hosts.h :o(
1378 */
1379 sh->max_id = ioc->devices_per_bus;
1380
1381 sh->max_lun = MPT_LAST_LUN + 1;
1382 /*
1383 * If RAID Firmware Detected, setup virtual channel
1384 */
1385 if (ioc->ir_firmware)
1386 sh->max_channel = 1;
1387 else
1388 sh->max_channel = 0;
1389 sh->this_id = ioc->pfacts[0].PortSCSIID;
1390
1391 /* Required entry.
1392 */
1393 sh->unique_id = ioc->id;
1394
1395 /* Verify that we won't exceed the maximum
1396 * number of chain buffers
1397 * We can optimize: ZZ = req_sz/sizeof(SGE)
1398 * For 32bit SGE's:
1399 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ
1400 * + (req_sz - 64)/sizeof(SGE)
1401 * A slightly different algorithm is required for
1402 * 64bit SGEs.
1403 */
1404 scale = ioc->req_sz/(sizeof(dma_addr_t) + sizeof(u32));
1405 if (sizeof(dma_addr_t) == sizeof(u64)) {
1406 numSGE = (scale - 1) *
1407 (ioc->facts.MaxChainDepth-1) + scale +
1408 (ioc->req_sz - 60) / (sizeof(dma_addr_t) +
1409 sizeof(u32));
1410 } else {
1411 numSGE = 1 + (scale - 1) *
1412 (ioc->facts.MaxChainDepth-1) + scale +
1413 (ioc->req_sz - 64) / (sizeof(dma_addr_t) +
1414 sizeof(u32));
1415 }
1416
1417 if (numSGE < sh->sg_tablesize) {
1418 /* Reset this value */
1419 dprintk(ioc, printk(MYIOC_s_INFO_FMT
1420 "Resetting sg_tablesize to %d from %d\n",
1421 ioc->name, numSGE, sh->sg_tablesize));
1422 sh->sg_tablesize = numSGE;
1423 }
1424
1425 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1426
1427 hd = (MPT_SCSI_HOST *) sh->hostdata;
1428 hd->ioc = ioc;
1429
1430 /* SCSI needs scsi_cmnd lookup table!
1431 * (with size equal to req_depth*PtrSz!)
1432 */
1433 hd->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC);
1434 if (!hd->ScsiLookup) {
1435 error = -ENOMEM;
1436 goto out_mptspi_probe;
1437 }
1438
1439 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScsiLookup @ %p\n",
1440 ioc->name, hd->ScsiLookup));
1441
1442 /* Clear the TM flags
1443 */
1444 hd->tmPending = 0;
1445 hd->tmState = TM_STATE_NONE;
1446 hd->resetPending = 0;
1447 hd->abortSCpnt = NULL;
1448
1449 /* Clear the pointer used to store
1450 * single-threaded commands, i.e., those
1451 * issued during a bus scan, dv and
1452 * configuration pages.
1453 */
1454 hd->cmdPtr = NULL;
1455
1456 /* Initialize this SCSI Hosts' timers
1457 * To use, set the timer expires field
1458 * and add_timer
1459 */
1460 init_timer(&hd->timer);
1461 hd->timer.data = (unsigned long) hd;
1462 hd->timer.function = mptscsih_timer_expired;
1463
1464 ioc->spi_data.Saf_Te = mpt_saf_te;
1465
1466 hd->negoNvram = MPT_SCSICFG_USE_NVRAM;
1467 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1468 "saf_te %x\n",
1469 ioc->name,
1470 mpt_saf_te));
1471 ioc->spi_data.noQas = 0;
1472
1473 init_waitqueue_head(&hd->scandv_waitq);
1474 hd->scandv_wait_done = 0;
1475 hd->last_queue_full = 0;
1476 hd->spi_pending = 0;
1477
1478 /* Some versions of the firmware don't support page 0; without
1479 * that we can't get the parameters */
1480 if (hd->ioc->spi_data.sdp0length != 0)
1481 sh->transportt = mptspi_transport_template;
1482
1483 error = scsi_add_host (sh, &ioc->pcidev->dev);
1484 if(error) {
1485 dprintk(ioc, printk(KERN_ERR MYNAM
1486 "scsi_add_host failed\n"));
1487 goto out_mptspi_probe;
1488 }
1489
1490 /*
1491 * issue internal bus reset
1492 */
1493 if (ioc->spi_data.bus_reset)
1494 mptscsih_TMHandler(hd,
1495 MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
1496 0, 0, 0, 0, 5);
1497
1498 scsi_scan_host(sh);
1499 return 0;
1500
1501 out_mptspi_probe:
1502
1503 mptscsih_remove(pdev);
1504 return error;
1505 }
1506
1507 static struct pci_driver mptspi_driver = {
1508 .name = "mptspi",
1509 .id_table = mptspi_pci_table,
1510 .probe = mptspi_probe,
1511 .remove = __devexit_p(mptscsih_remove),
1512 .shutdown = mptscsih_shutdown,
1513 #ifdef CONFIG_PM
1514 .suspend = mptscsih_suspend,
1515 .resume = mptspi_resume,
1516 #endif
1517 };
1518
1519 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1520 /**
1521 * mptspi_init - Register MPT adapter(s) as SCSI host(s) with SCSI mid-layer.
1522 *
1523 * Returns 0 for success, non-zero for failure.
1524 */
1525 static int __init
1526 mptspi_init(void)
1527 {
1528 int error;
1529
1530 show_mptmod_ver(my_NAME, my_VERSION);
1531
1532 mptspi_transport_template = spi_attach_transport(&mptspi_transport_functions);
1533 if (!mptspi_transport_template)
1534 return -ENODEV;
1535
1536 mptspiDoneCtx = mpt_register(mptscsih_io_done, MPTSPI_DRIVER);
1537 mptspiTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTSPI_DRIVER);
1538 mptspiInternalCtx = mpt_register(mptscsih_scandv_complete, MPTSPI_DRIVER);
1539
1540 mpt_event_register(mptspiDoneCtx, mptspi_event_process);
1541 mpt_reset_register(mptspiDoneCtx, mptspi_ioc_reset);
1542
1543 error = pci_register_driver(&mptspi_driver);
1544 if (error)
1545 spi_release_transport(mptspi_transport_template);
1546
1547 return error;
1548 }
1549
1550 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1551 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1552 /**
1553 * mptspi_exit - Unregisters MPT adapter(s)
1554 */
1555 static void __exit
1556 mptspi_exit(void)
1557 {
1558 pci_unregister_driver(&mptspi_driver);
1559
1560 mpt_reset_deregister(mptspiDoneCtx);
1561 mpt_event_deregister(mptspiDoneCtx);
1562
1563 mpt_deregister(mptspiInternalCtx);
1564 mpt_deregister(mptspiTaskCtx);
1565 mpt_deregister(mptspiDoneCtx);
1566 spi_release_transport(mptspi_transport_template);
1567 }
1568
1569 module_init(mptspi_init);
1570 module_exit(mptspi_exit);
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