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[SCSI] fusion - loginfo header update
[mirror_ubuntu-zesty-kernel.git] / drivers / message / fusion / mptspi.c
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243eabcf
MED		 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) 1999-2005 LSI Logic Corporation
7 * (mailto:mpt_linux_developer@lsil.com)
8 *
9 */
10/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
11/*
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; version 2 of the License.
15
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
20
21 NO WARRANTY
22 THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
23 CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
24 LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
25 MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
26 solely responsible for determining the appropriateness of using and
27 distributing the Program and assumes all risks associated with its
28 exercise of rights under this Agreement, including but not limited to
29 the risks and costs of program errors, damage to or loss of data,
30 programs or equipment, and unavailability or interruption of operations.
31
32 DISCLAIMER OF LIABILITY
33 NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
34 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
35 DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
36 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
37 TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
38 USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
39 HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
40
41 You should have received a copy of the GNU General Public License
42 along with this program; if not, write to the Free Software
43 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
44*/
45/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
46
47#include "linux_compat.h" /* linux-2.6 tweaks */
48#include <linux/module.h>
49#include <linux/kernel.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/sched.h>
58#include <linux/workqueue.h>
c92f222e 59#include <linux/raid_class.h>
243eabcf
MED		 60
61#include <scsi/scsi.h>
62#include <scsi/scsi_cmnd.h>
63#include <scsi/scsi_device.h>
64#include <scsi/scsi_host.h>
65#include <scsi/scsi_tcq.h>
c92f222e
JB		 66#include <scsi/scsi_transport.h>
67#include <scsi/scsi_transport_spi.h>
243eabcf
MED		 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
77MODULE_AUTHOR(MODULEAUTHOR);
78MODULE_DESCRIPTION(my_NAME);
79MODULE_LICENSE("GPL");
80
81/* Command line args */
243eabcf
MED		 82static int mpt_saf_te = MPTSCSIH_SAF_TE;
83module_param(mpt_saf_te, int, 0);
84MODULE_PARM_DESC(mpt_saf_te, " Force enabling SEP Processor: enable=1 (default=MPTSCSIH_SAF_TE=0)");
85
86static int mpt_pq_filter = 0;
87module_param(mpt_pq_filter, int, 0);
88MODULE_PARM_DESC(mpt_pq_filter, " Enable peripheral qualifier filter: enable=1 (default=0)");
89
c92f222e
JB		 90static void mptspi_write_offset(struct scsi_target *, int);
91static void mptspi_write_width(struct scsi_target *, int);
92static int mptspi_write_spi_device_pg1(struct scsi_target *,
93 struct _CONFIG_PAGE_SCSI_DEVICE_1 *);
94
95static struct scsi_transport_template *mptspi_transport_template = NULL;
96
243eabcf
MED		 97static int mptspiDoneCtx = -1;
98static int mptspiTaskCtx = -1;
99static int mptspiInternalCtx = -1; /* Used only for internal commands */
100
c92f222e
JB		 101static int mptspi_target_alloc(struct scsi_target *starget)
102{
103 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
104 struct _MPT_SCSI_HOST *hd = (struct _MPT_SCSI_HOST *)shost->hostdata;
105 int ret;
106
107 if (hd == NULL)
108 return -ENODEV;
109
110 ret = mptscsih_target_alloc(starget);
111 if (ret)
112 return ret;
113
114 /* if we're a device on virtual channel 1 and we're not part
115 * of an array, just return here (otherwise the setup below
116 * may actually affect a real physical device on channel 0 */
117 if (starget->channel == 1 &&
118 mptscsih_raid_id_to_num(hd, starget->id) < 0)
119 return 0;
120
121 if (hd->ioc->spi_data.nvram &&
122 hd->ioc->spi_data.nvram[starget->id] != MPT_HOST_NVRAM_INVALID) {
123 u32 nvram = hd->ioc->spi_data.nvram[starget->id];
124 spi_min_period(starget) = (nvram & MPT_NVRAM_SYNC_MASK) >> MPT_NVRAM_SYNC_SHIFT;
125 spi_max_width(starget) = nvram & MPT_NVRAM_WIDE_DISABLE ? 0 : 1;
126 } else {
127 spi_min_period(starget) = hd->ioc->spi_data.minSyncFactor;
128 spi_max_width(starget) = hd->ioc->spi_data.maxBusWidth;
129 }
130 spi_max_offset(starget) = hd->ioc->spi_data.maxSyncOffset;
131
132 spi_offset(starget) = 0;
133 mptspi_write_width(starget, 0);
134
135 return 0;
136}
137
138static int mptspi_read_spi_device_pg0(struct scsi_target *starget,
139 struct _CONFIG_PAGE_SCSI_DEVICE_0 *pass_pg0)
140{
141 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
142 struct _MPT_SCSI_HOST *hd = (struct _MPT_SCSI_HOST *)shost->hostdata;
143 struct _MPT_ADAPTER *ioc = hd->ioc;
144 struct _CONFIG_PAGE_SCSI_DEVICE_0 *pg0;
145 dma_addr_t pg0_dma;
146 int size;
147 struct _x_config_parms cfg;
148 struct _CONFIG_PAGE_HEADER hdr;
149 int err = -EBUSY;
150
151 /* No SPI parameters for RAID devices */
152 if (starget->channel == 0 &&
153 (hd->ioc->raid_data.isRaid & (1 << starget->id)))
154 return -1;
155
156 size = ioc->spi_data.sdp0length * 4;
157 /*
158 if (ioc->spi_data.sdp0length & 1)
159 size += size + 4;
160 size += 2048;
161 */
162
163 pg0 = dma_alloc_coherent(&ioc->pcidev->dev, size, &pg0_dma, GFP_KERNEL);
164 if (pg0 == NULL) {
165 starget_printk(KERN_ERR, starget, "dma_alloc_coherent for parameters failed\n");
166 return -EINVAL;
167 }
168
169 memset(&hdr, 0, sizeof(hdr));
170
171 hdr.PageVersion = ioc->spi_data.sdp0version;
172 hdr.PageLength = ioc->spi_data.sdp0length;
173 hdr.PageNumber = 0;
174 hdr.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE;
175
176 memset(&cfg, 0, sizeof(cfg));
177
178 cfg.cfghdr.hdr = &hdr;
179 cfg.physAddr = pg0_dma;
180 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
181 cfg.dir = 0;
182 cfg.pageAddr = starget->id;
183
184 if (mpt_config(ioc, &cfg)) {
185 starget_printk(KERN_ERR, starget, "mpt_config failed\n");
186 goto out_free;
187 }
188 err = 0;
189 memcpy(pass_pg0, pg0, size);
190
191 out_free:
192 dma_free_coherent(&ioc->pcidev->dev, size, pg0, pg0_dma);
193 return err;
194}
195
196static u32 mptspi_getRP(struct scsi_target *starget)
197{
198 u32 nego = 0;
199
200 nego |= spi_iu(starget) ? MPI_SCSIDEVPAGE1_RP_IU : 0;
201 nego |= spi_dt(starget) ? MPI_SCSIDEVPAGE1_RP_DT : 0;
202 nego |= spi_qas(starget) ? MPI_SCSIDEVPAGE1_RP_QAS : 0;
203 nego |= spi_hold_mcs(starget) ? MPI_SCSIDEVPAGE1_RP_HOLD_MCS : 0;
204 nego |= spi_wr_flow(starget) ? MPI_SCSIDEVPAGE1_RP_WR_FLOW : 0;
205 nego |= spi_rd_strm(starget) ? MPI_SCSIDEVPAGE1_RP_RD_STRM : 0;
206 nego |= spi_rti(starget) ? MPI_SCSIDEVPAGE1_RP_RTI : 0;
207 nego |= spi_pcomp_en(starget) ? MPI_SCSIDEVPAGE1_RP_PCOMP_EN : 0;
208
209 nego |= (spi_period(starget) << MPI_SCSIDEVPAGE1_RP_SHIFT_MIN_SYNC_PERIOD) & MPI_SCSIDEVPAGE1_RP_MIN_SYNC_PERIOD_MASK;
210 nego |= (spi_offset(starget) << MPI_SCSIDEVPAGE1_RP_SHIFT_MAX_SYNC_OFFSET) & MPI_SCSIDEVPAGE1_RP_MAX_SYNC_OFFSET_MASK;
211 nego |= spi_width(starget) ? MPI_SCSIDEVPAGE1_RP_WIDE : 0;
212
213 return nego;
214}
215
216static void mptspi_read_parameters(struct scsi_target *starget)
217{
218 int nego;
219 struct _CONFIG_PAGE_SCSI_DEVICE_0 pg0;
220
221 mptspi_read_spi_device_pg0(starget, &pg0);
222
223 nego = le32_to_cpu(pg0.NegotiatedParameters);
224
225 spi_iu(starget) = (nego & MPI_SCSIDEVPAGE0_NP_IU) ? 1 : 0;
226 spi_dt(starget) = (nego & MPI_SCSIDEVPAGE0_NP_DT) ? 1 : 0;
227 spi_qas(starget) = (nego & MPI_SCSIDEVPAGE0_NP_QAS) ? 1 : 0;
228 spi_wr_flow(starget) = (nego & MPI_SCSIDEVPAGE0_NP_WR_FLOW) ? 1 : 0;
229 spi_rd_strm(starget) = (nego & MPI_SCSIDEVPAGE0_NP_RD_STRM) ? 1 : 0;
230 spi_rti(starget) = (nego & MPI_SCSIDEVPAGE0_NP_RTI) ? 1 : 0;
231 spi_pcomp_en(starget) = (nego & MPI_SCSIDEVPAGE0_NP_PCOMP_EN) ? 1 : 0;
232 spi_hold_mcs(starget) = (nego & MPI_SCSIDEVPAGE0_NP_HOLD_MCS) ? 1 : 0;
233 spi_period(starget) = (nego & MPI_SCSIDEVPAGE0_NP_NEG_SYNC_PERIOD_MASK) >> MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_PERIOD;
234 spi_offset(starget) = (nego & MPI_SCSIDEVPAGE0_NP_NEG_SYNC_OFFSET_MASK) >> MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_OFFSET;
235 spi_width(starget) = (nego & MPI_SCSIDEVPAGE0_NP_WIDE) ? 1 : 0;
236}
237
238static int
239mptscsih_quiesce_raid(MPT_SCSI_HOST *hd, int quiesce, int disk)
240{
241 MpiRaidActionRequest_t *pReq;
242 MPT_FRAME_HDR *mf;
243
244 /* Get and Populate a free Frame
245 */
246 if ((mf = mpt_get_msg_frame(hd->ioc->InternalCtx, hd->ioc)) == NULL) {
247 ddvprintk((MYIOC_s_WARN_FMT "_do_raid: no msg frames!\n",
248 hd->ioc->name));
249 return -EAGAIN;
250 }
251 pReq = (MpiRaidActionRequest_t *)mf;
252 if (quiesce)
253 pReq->Action = MPI_RAID_ACTION_QUIESCE_PHYS_IO;
254 else
255 pReq->Action = MPI_RAID_ACTION_ENABLE_PHYS_IO;
256 pReq->Reserved1 = 0;
257 pReq->ChainOffset = 0;
258 pReq->Function = MPI_FUNCTION_RAID_ACTION;
259 pReq->VolumeID = disk;
260 pReq->VolumeBus = 0;
261 pReq->PhysDiskNum = 0;
262 pReq->MsgFlags = 0;
263 pReq->Reserved2 = 0;
264 pReq->ActionDataWord = 0; /* Reserved for this action */
265
266 mpt_add_sge((char *)&pReq->ActionDataSGE,
267 MPT_SGE_FLAGS_SSIMPLE_READ | 0, (dma_addr_t) -1);
268
269 ddvprintk((MYIOC_s_INFO_FMT "RAID Volume action %x id %d\n",
270 hd->ioc->name, action, io->id));
271
272 hd->pLocal = NULL;
273 hd->timer.expires = jiffies + HZ*10; /* 10 second timeout */
274 hd->scandv_wait_done = 0;
275
276 /* Save cmd pointer, for resource free if timeout or
277 * FW reload occurs
278 */
279 hd->cmdPtr = mf;
280
281 add_timer(&hd->timer);
282 mpt_put_msg_frame(hd->ioc->InternalCtx, hd->ioc, mf);
283 wait_event(hd->scandv_waitq, hd->scandv_wait_done);
284
285 if ((hd->pLocal == NULL) || (hd->pLocal->completion != 0))
286 return -1;
287
288 return 0;
289}
290
291static void mptspi_dv_device(struct _MPT_SCSI_HOST *hd,
292 struct scsi_device *sdev)
293{
294 VirtTarget *vtarget = scsi_target(sdev)->hostdata;
295
296 /* no DV on RAID devices */
297 if (sdev->channel == 0 &&
298 (hd->ioc->raid_data.isRaid & (1 << sdev->id)))
299 return;
300
301 /* If this is a piece of a RAID, then quiesce first */
302 if (sdev->channel == 1 &&
303 mptscsih_quiesce_raid(hd, 1, vtarget->target_id) < 0) {
304 starget_printk(KERN_ERR, scsi_target(sdev),
305 "Integrated RAID quiesce failed\n");
306 return;
307 }
308
309 spi_dv_device(sdev);
310
311 if (sdev->channel == 1 &&
312 mptscsih_quiesce_raid(hd, 0, vtarget->target_id) < 0)
313 starget_printk(KERN_ERR, scsi_target(sdev),
314 "Integrated RAID resume failed\n");
315
316 mptspi_read_parameters(sdev->sdev_target);
317 spi_display_xfer_agreement(sdev->sdev_target);
318 mptspi_read_parameters(sdev->sdev_target);
319}
320
321static int mptspi_slave_alloc(struct scsi_device *sdev)
322{
323 int ret;
324 MPT_SCSI_HOST *hd = (MPT_SCSI_HOST *)sdev->host->hostdata;
325 /* gcc doesn't see that all uses of this variable occur within
326 * the if() statements, so stop it from whining */
327 int physdisknum = 0;
328
329 if (sdev->channel == 1) {
330 physdisknum = mptscsih_raid_id_to_num(hd, sdev->id);
331
332 if (physdisknum < 0)
333 return physdisknum;
334 }
335
336 ret = mptscsih_slave_alloc(sdev);
337
338 if (ret)
339 return ret;
340
341 if (sdev->channel == 1) {
342 VirtDevice *vdev = sdev->hostdata;
343 sdev->no_uld_attach = 1;
344 vdev->vtarget->tflags |= MPT_TARGET_FLAGS_RAID_COMPONENT;
345 /* The real channel for this device is zero */
346 vdev->bus_id = 0;
347 /* The actual physdisknum (for RAID passthrough) */
348 vdev->target_id = physdisknum;
349 }
350
351 return 0;
352}
353
354static int mptspi_slave_configure(struct scsi_device *sdev)
355{
356 int ret = mptscsih_slave_configure(sdev);
357 struct _MPT_SCSI_HOST *hd =
358 (struct _MPT_SCSI_HOST *)sdev->host->hostdata;
359
360 if (ret)
361 return ret;
362
363 if ((sdev->channel == 1 ||
364 !(hd->ioc->raid_data.isRaid & (1 << sdev->id))) &&
365 !spi_initial_dv(sdev->sdev_target))
366 mptspi_dv_device(hd, sdev);
367
368 return 0;
369}
370
371static void mptspi_slave_destroy(struct scsi_device *sdev)
372{
373 struct scsi_target *starget = scsi_target(sdev);
374 VirtTarget *vtarget = starget->hostdata;
375 VirtDevice *vdevice = sdev->hostdata;
376
377 /* Will this be the last lun on a non-raid device? */
378 if (vtarget->num_luns == 1 && vdevice->configured_lun) {
379 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
380
381 /* Async Narrow */
382 pg1.RequestedParameters = 0;
383 pg1.Reserved = 0;
384 pg1.Configuration = 0;
385
386 mptspi_write_spi_device_pg1(starget, &pg1);
387 }
388
389 mptscsih_slave_destroy(sdev);
390}
391
243eabcf 392static struct scsi_host_template mptspi_driver_template = {
f78496da 393 .module = THIS_MODULE,
243eabcf
MED		 394 .proc_name = "mptspi",
395 .proc_info = mptscsih_proc_info,
396 .name = "MPT SPI Host",
397 .info = mptscsih_info,
398 .queuecommand = mptscsih_qcmd,
c92f222e
JB		 399 .target_alloc = mptspi_target_alloc,
400 .slave_alloc = mptspi_slave_alloc,
401 .slave_configure = mptspi_slave_configure,
c7c82987 402 .target_destroy = mptscsih_target_destroy,
c92f222e 403 .slave_destroy = mptspi_slave_destroy,
6e3815ba 404 .change_queue_depth = mptscsih_change_queue_depth,
243eabcf
MED		 405 .eh_abort_handler = mptscsih_abort,
406 .eh_device_reset_handler = mptscsih_dev_reset,
407 .eh_bus_reset_handler = mptscsih_bus_reset,
408 .eh_host_reset_handler = mptscsih_host_reset,
409 .bios_param = mptscsih_bios_param,
410 .can_queue = MPT_SCSI_CAN_QUEUE,
411 .this_id = -1,
412 .sg_tablesize = MPT_SCSI_SG_DEPTH,
413 .max_sectors = 8192,
414 .cmd_per_lun = 7,
415 .use_clustering = ENABLE_CLUSTERING,
243eabcf
MED		 416};
417
c92f222e
JB		 418static int mptspi_write_spi_device_pg1(struct scsi_target *starget,
419 struct _CONFIG_PAGE_SCSI_DEVICE_1 *pass_pg1)
420{
421 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
422 struct _MPT_SCSI_HOST *hd = (struct _MPT_SCSI_HOST *)shost->hostdata;
423 struct _MPT_ADAPTER *ioc = hd->ioc;
424 struct _CONFIG_PAGE_SCSI_DEVICE_1 *pg1;
425 dma_addr_t pg1_dma;
426 int size;
427 struct _x_config_parms cfg;
428 struct _CONFIG_PAGE_HEADER hdr;
429 int err = -EBUSY;
430
431 /* don't allow updating nego parameters on RAID devices */
432 if (starget->channel == 0 &&
433 (hd->ioc->raid_data.isRaid & (1 << starget->id)))
434 return -1;
435
436 size = ioc->spi_data.sdp1length * 4;
437
438 pg1 = dma_alloc_coherent(&ioc->pcidev->dev, size, &pg1_dma, GFP_KERNEL);
439 if (pg1 == NULL) {
440 starget_printk(KERN_ERR, starget, "dma_alloc_coherent for parameters failed\n");
441 return -EINVAL;
442 }
443
444 memset(&hdr, 0, sizeof(hdr));
445
446 hdr.PageVersion = ioc->spi_data.sdp1version;
447 hdr.PageLength = ioc->spi_data.sdp1length;
448 hdr.PageNumber = 1;
449 hdr.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE;
450
451 memset(&cfg, 0, sizeof(cfg));
452
453 cfg.cfghdr.hdr = &hdr;
454 cfg.physAddr = pg1_dma;
455 cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT;
456 cfg.dir = 1;
457 cfg.pageAddr = starget->id;
458
459 memcpy(pg1, pass_pg1, size);
460
461 pg1->Header.PageVersion = hdr.PageVersion;
462 pg1->Header.PageLength = hdr.PageLength;
463 pg1->Header.PageNumber = hdr.PageNumber;
464 pg1->Header.PageType = hdr.PageType;
465
466 if (mpt_config(ioc, &cfg)) {
467 starget_printk(KERN_ERR, starget, "mpt_config failed\n");
468 goto out_free;
469 }
470 err = 0;
471
472 out_free:
473 dma_free_coherent(&ioc->pcidev->dev, size, pg1, pg1_dma);
474 return err;
475}
476
477static void mptspi_write_offset(struct scsi_target *starget, int offset)
478{
479 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
480 u32 nego;
481
482 if (offset < 0)
483 offset = 0;
484
485 if (offset > 255)
486 offset = 255;
487
488 if (spi_offset(starget) == -1)
489 mptspi_read_parameters(starget);
490
491 spi_offset(starget) = offset;
492
493 nego = mptspi_getRP(starget);
494
495 pg1.RequestedParameters = cpu_to_le32(nego);
496 pg1.Reserved = 0;
497 pg1.Configuration = 0;
498
499 mptspi_write_spi_device_pg1(starget, &pg1);
500}
501
502static void mptspi_write_period(struct scsi_target *starget, int period)
503{
504 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
505 u32 nego;
506
507 if (period < 8)
508 period = 8;
509
510 if (period > 255)
511 period = 255;
512
513 if (spi_period(starget) == -1)
514 mptspi_read_parameters(starget);
515
516 if (period == 8) {
517 spi_iu(starget) = 1;
518 spi_dt(starget) = 1;
519 } else if (period == 9) {
520 spi_dt(starget) = 1;
521 }
522
523 spi_period(starget) = period;
524
525 nego = mptspi_getRP(starget);
526
527 pg1.RequestedParameters = cpu_to_le32(nego);
528 pg1.Reserved = 0;
529 pg1.Configuration = 0;
530
531 mptspi_write_spi_device_pg1(starget, &pg1);
532}
533
534static void mptspi_write_dt(struct scsi_target *starget, int dt)
535{
536 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
537 u32 nego;
538
539 if (spi_period(starget) == -1)
540 mptspi_read_parameters(starget);
541
542 if (!dt && spi_period(starget) < 10)
543 spi_period(starget) = 10;
544
545 spi_dt(starget) = dt;
546
547 nego = mptspi_getRP(starget);
548
549
550 pg1.RequestedParameters = cpu_to_le32(nego);
551 pg1.Reserved = 0;
552 pg1.Configuration = 0;
553
554 mptspi_write_spi_device_pg1(starget, &pg1);
555}
556
557static void mptspi_write_iu(struct scsi_target *starget, int iu)
558{
559 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
560 u32 nego;
561
562 if (spi_period(starget) == -1)
563 mptspi_read_parameters(starget);
564
565 if (!iu && spi_period(starget) < 9)
566 spi_period(starget) = 9;
567
568 spi_iu(starget) = iu;
569
570 nego = mptspi_getRP(starget);
571
572 pg1.RequestedParameters = cpu_to_le32(nego);
573 pg1.Reserved = 0;
574 pg1.Configuration = 0;
575
576 mptspi_write_spi_device_pg1(starget, &pg1);
577}
578
579#define MPTSPI_SIMPLE_TRANSPORT_PARM(parm) \
580static void mptspi_write_##parm(struct scsi_target *starget, int parm)\
581{ \
582 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; \
583 u32 nego; \
584 \
585 spi_##parm(starget) = parm; \
586 \
587 nego = mptspi_getRP(starget); \
588 \
589 pg1.RequestedParameters = cpu_to_le32(nego); \
590 pg1.Reserved = 0; \
591 pg1.Configuration = 0; \
592 \
593 mptspi_write_spi_device_pg1(starget, &pg1); \
594}
595
596MPTSPI_SIMPLE_TRANSPORT_PARM(rd_strm)
597MPTSPI_SIMPLE_TRANSPORT_PARM(wr_flow)
598MPTSPI_SIMPLE_TRANSPORT_PARM(rti)
599MPTSPI_SIMPLE_TRANSPORT_PARM(hold_mcs)
600MPTSPI_SIMPLE_TRANSPORT_PARM(pcomp_en)
601
602static void mptspi_write_qas(struct scsi_target *starget, int qas)
603{
604 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
605 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
606 struct _MPT_SCSI_HOST *hd = (struct _MPT_SCSI_HOST *)shost->hostdata;
607 VirtTarget *vtarget = starget->hostdata;
608 u32 nego;
609
610 if ((vtarget->negoFlags & MPT_TARGET_NO_NEGO_QAS) ||
611 hd->ioc->spi_data.noQas)
612 spi_qas(starget) = 0;
613 else
614 spi_qas(starget) = qas;
615
616 nego = mptspi_getRP(starget);
617
618 pg1.RequestedParameters = cpu_to_le32(nego);
619 pg1.Reserved = 0;
620 pg1.Configuration = 0;
621
622 mptspi_write_spi_device_pg1(starget, &pg1);
623}
624
625static void mptspi_write_width(struct scsi_target *starget, int width)
626{
627 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
628 u32 nego;
629
630 if (!width) {
631 spi_dt(starget) = 0;
632 if (spi_period(starget) < 10)
633 spi_period(starget) = 10;
634 }
635
636 spi_width(starget) = width;
637
638 nego = mptspi_getRP(starget);
639
640 pg1.RequestedParameters = cpu_to_le32(nego);
641 pg1.Reserved = 0;
642 pg1.Configuration = 0;
643
644 mptspi_write_spi_device_pg1(starget, &pg1);
645}
646
647struct work_queue_wrapper {
648 struct work_struct work;
649 struct _MPT_SCSI_HOST *hd;
650 int disk;
651};
652
653static void mpt_work_wrapper(void *data)
654{
655 struct work_queue_wrapper *wqw = (struct work_queue_wrapper *)data;
656 struct _MPT_SCSI_HOST *hd = wqw->hd;
657 struct Scsi_Host *shost = hd->ioc->sh;
658 struct scsi_device *sdev;
659 int disk = wqw->disk;
660 struct _CONFIG_PAGE_IOC_3 *pg3;
661
662 kfree(wqw);
663
664 mpt_findImVolumes(hd->ioc);
665 pg3 = hd->ioc->raid_data.pIocPg3;
666 if (!pg3)
667 return;
668
669 shost_for_each_device(sdev,shost) {
670 struct scsi_target *starget = scsi_target(sdev);
671 VirtTarget *vtarget = starget->hostdata;
672
673 /* only want to search RAID components */
674 if (sdev->channel != 1)
675 continue;
676
677 /* The target_id is the raid PhysDiskNum, even if
678 * starget->id is the actual target address */
679 if(vtarget->target_id != disk)
680 continue;
681
682 starget_printk(KERN_INFO, vtarget->starget,
683 "Integrated RAID requests DV of new device\n");
684 mptspi_dv_device(hd, sdev);
685 }
686 shost_printk(KERN_INFO, shost,
687 "Integrated RAID detects new device %d\n", disk);
688 scsi_scan_target(&hd->ioc->sh->shost_gendev, 1, disk, 0, 1);
689}
690
691
692static void mpt_dv_raid(struct _MPT_SCSI_HOST *hd, int disk)
693{
694 struct work_queue_wrapper *wqw = kmalloc(sizeof(*wqw), GFP_ATOMIC);
695
696 if (!wqw) {
697 shost_printk(KERN_ERR, hd->ioc->sh,
698 "Failed to act on RAID event for physical disk %d\n",
699 disk);
700 return;
701 }
702 INIT_WORK(&wqw->work, mpt_work_wrapper, wqw);
703 wqw->hd = hd;
704 wqw->disk = disk;
705
706 schedule_work(&wqw->work);
707}
708
709static int
710mptspi_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
711{
712 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
713 struct _MPT_SCSI_HOST *hd = (struct _MPT_SCSI_HOST *)ioc->sh->hostdata;
714
715 if (hd && event == MPI_EVENT_INTEGRATED_RAID) {
716 int reason
717 = (le32_to_cpu(pEvReply->Data[0]) & 0x00FF0000) >> 16;
718
719 if (reason == MPI_EVENT_RAID_RC_DOMAIN_VAL_NEEDED) {
720 int disk = (le32_to_cpu(pEvReply->Data[0]) & 0xFF000000) >> 24;
721 mpt_dv_raid(hd, disk);
722 }
723 }
724 return mptscsih_event_process(ioc, pEvReply);
725}
726
727static int
728mptspi_deny_binding(struct scsi_target *starget)
729{
730 struct _MPT_SCSI_HOST *hd =
731 (struct _MPT_SCSI_HOST *)dev_to_shost(starget->dev.parent)->hostdata;
732 return ((hd->ioc->raid_data.isRaid & (1 << starget->id)) &&
733 starget->channel == 0) ? 1 : 0;
734}
735
736static struct spi_function_template mptspi_transport_functions = {
737 .get_offset = mptspi_read_parameters,
738 .set_offset = mptspi_write_offset,
739 .show_offset = 1,
740 .get_period = mptspi_read_parameters,
741 .set_period = mptspi_write_period,
742 .show_period = 1,
743 .get_width = mptspi_read_parameters,
744 .set_width = mptspi_write_width,
745 .show_width = 1,
746 .get_iu = mptspi_read_parameters,
747 .set_iu = mptspi_write_iu,
748 .show_iu = 1,
749 .get_dt = mptspi_read_parameters,
750 .set_dt = mptspi_write_dt,
751 .show_dt = 1,
752 .get_qas = mptspi_read_parameters,
753 .set_qas = mptspi_write_qas,
754 .show_qas = 1,
755 .get_wr_flow = mptspi_read_parameters,
756 .set_wr_flow = mptspi_write_wr_flow,
757 .show_wr_flow = 1,
758 .get_rd_strm = mptspi_read_parameters,
759 .set_rd_strm = mptspi_write_rd_strm,
760 .show_rd_strm = 1,
761 .get_rti = mptspi_read_parameters,
762 .set_rti = mptspi_write_rti,
763 .show_rti = 1,
764 .get_pcomp_en = mptspi_read_parameters,
765 .set_pcomp_en = mptspi_write_pcomp_en,
766 .show_pcomp_en = 1,
767 .get_hold_mcs = mptspi_read_parameters,
768 .set_hold_mcs = mptspi_write_hold_mcs,
769 .show_hold_mcs = 1,
770 .deny_binding = mptspi_deny_binding,
771};
243eabcf
MED		 772
773/****************************************************************************
774 * Supported hardware
775 */
776
777static struct pci_device_id mptspi_pci_table[] = {
778 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C1030,
779 PCI_ANY_ID, PCI_ANY_ID },
780 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_1030_53C1035,
781 PCI_ANY_ID, PCI_ANY_ID },
782 {0} /* Terminating entry */
783};
784MODULE_DEVICE_TABLE(pci, mptspi_pci_table);
785
786/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
787/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
788/*
789 * mptspi_probe - Installs scsi devices per bus.
790 * @pdev: Pointer to pci_dev structure
791 *
792 * Returns 0 for success, non-zero for failure.
793 *
794 */
795static int
796mptspi_probe(struct pci_dev *pdev, const struct pci_device_id *id)
797{
798 struct Scsi_Host *sh;
799 MPT_SCSI_HOST *hd;
800 MPT_ADAPTER *ioc;
801 unsigned long flags;
1ca00bb7 802 int ii;
243eabcf
MED		 803 int numSGE = 0;
804 int scale;
805 int ioc_cap;
243eabcf
MED		 806 int error=0;
807 int r;
c6678e0c 808
243eabcf
MED		 809 if ((r = mpt_attach(pdev,id)) != 0)
810 return r;
c6678e0c 811
243eabcf 812 ioc = pci_get_drvdata(pdev);
d335cc38
MED		 813 ioc->DoneCtx = mptspiDoneCtx;
814 ioc->TaskCtx = mptspiTaskCtx;
815 ioc->InternalCtx = mptspiInternalCtx;
c6678e0c 816
243eabcf
MED		 817 /* Added sanity check on readiness of the MPT adapter.
818 */
819 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) {
820 printk(MYIOC_s_WARN_FMT
821 "Skipping because it's not operational!\n",
822 ioc->name);
7acec1e7
MED		 823 error = -ENODEV;
824 goto out_mptspi_probe;
243eabcf
MED		 825 }
826
827 if (!ioc->active) {
828 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n",
829 ioc->name);
7acec1e7
MED		 830 error = -ENODEV;
831 goto out_mptspi_probe;
243eabcf
MED		 832 }
833
834 /* Sanity check - ensure at least 1 port is INITIATOR capable
835 */
836 ioc_cap = 0;
837 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
838 if (ioc->pfacts[ii].ProtocolFlags &
839 MPI_PORTFACTS_PROTOCOL_INITIATOR)
840 ioc_cap ++;
841 }
842
843 if (!ioc_cap) {
844 printk(MYIOC_s_WARN_FMT
845 "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n",
846 ioc->name, ioc);
466544d8 847 return 0;
243eabcf
MED		 848 }
849
850 sh = scsi_host_alloc(&mptspi_driver_template, sizeof(MPT_SCSI_HOST));
851
852 if (!sh) {
853 printk(MYIOC_s_WARN_FMT
854 "Unable to register controller with SCSI subsystem\n",
855 ioc->name);
7acec1e7
MED		 856 error = -1;
857 goto out_mptspi_probe;
243eabcf
MED		 858 }
859
860 spin_lock_irqsave(&ioc->FreeQlock, flags);
861
862 /* Attach the SCSI Host to the IOC structure
863 */
864 ioc->sh = sh;
865
866 sh->io_port = 0;
867 sh->n_io_port = 0;
868 sh->irq = 0;
869
870 /* set 16 byte cdb's */
871 sh->max_cmd_len = 16;
872
873 /* Yikes! This is important!
874 * Otherwise, by default, linux
875 * only scans target IDs 0-7!
876 * pfactsN->MaxDevices unreliable
877 * (not supported in early
878 * versions of the FW).
879 * max_id = 1 + actual max id,
880 * max_lun = 1 + actual last lun,
881 * see hosts.h :o(
882 */
883 sh->max_id = MPT_MAX_SCSI_DEVICES;
884
885 sh->max_lun = MPT_LAST_LUN + 1;
c92f222e
JB		 886 /*
887 * If RAID Firmware Detected, setup virtual channel
888 */
889 if ((ioc->facts.ProductID & MPI_FW_HEADER_PID_PROD_MASK)
890 > MPI_FW_HEADER_PID_PROD_TARGET_SCSI)
891 sh->max_channel = 1;
892 else
893 sh->max_channel = 0;
243eabcf
MED		 894 sh->this_id = ioc->pfacts[0].PortSCSIID;
895
896 /* Required entry.
897 */
898 sh->unique_id = ioc->id;
899
900 /* Verify that we won't exceed the maximum
901 * number of chain buffers
902 * We can optimize: ZZ = req_sz/sizeof(SGE)
903 * For 32bit SGE's:
904 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ
905 * + (req_sz - 64)/sizeof(SGE)
906 * A slightly different algorithm is required for
907 * 64bit SGEs.
908 */
909 scale = ioc->req_sz/(sizeof(dma_addr_t) + sizeof(u32));
910 if (sizeof(dma_addr_t) == sizeof(u64)) {
911 numSGE = (scale - 1) *
912 (ioc->facts.MaxChainDepth-1) + scale +
913 (ioc->req_sz - 60) / (sizeof(dma_addr_t) +
914 sizeof(u32));
915 } else {
916 numSGE = 1 + (scale - 1) *
917 (ioc->facts.MaxChainDepth-1) + scale +
918 (ioc->req_sz - 64) / (sizeof(dma_addr_t) +
919 sizeof(u32));
920 }
921
922 if (numSGE < sh->sg_tablesize) {
923 /* Reset this value */
924 dprintk((MYIOC_s_INFO_FMT
925 "Resetting sg_tablesize to %d from %d\n",
926 ioc->name, numSGE, sh->sg_tablesize));
927 sh->sg_tablesize = numSGE;
928 }
929
243eabcf
MED		 930 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
931
932 hd = (MPT_SCSI_HOST *) sh->hostdata;
933 hd->ioc = ioc;
934
935 /* SCSI needs scsi_cmnd lookup table!
936 * (with size equal to req_depth*PtrSz!)
937 */
1ca00bb7
CH		 938 hd->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC);
939 if (!hd->ScsiLookup) {
243eabcf 940 error = -ENOMEM;
7acec1e7 941 goto out_mptspi_probe;
243eabcf
MED		 942 }
943
1ca00bb7
CH		 944 dprintk((MYIOC_s_INFO_FMT "ScsiLookup @ %p\n",
945 ioc->name, hd->ScsiLookup));
243eabcf
MED		 946
947 /* Allocate memory for the device structures.
948 * A non-Null pointer at an offset
949 * indicates a device exists.
950 * max_id = 1 + maximum id (hosts.h)
951 */
c92f222e
JB		 952 hd->Targets = kcalloc(sh->max_id * (sh->max_channel + 1),
953 sizeof(void *), GFP_ATOMIC);
1ca00bb7 954 if (!hd->Targets) {
243eabcf 955 error = -ENOMEM;
7acec1e7 956 goto out_mptspi_probe;
243eabcf
MED		 957 }
958
1ca00bb7 959 dprintk((KERN_INFO " vdev @ %p\n", hd->Targets));
243eabcf
MED		 960
961 /* Clear the TM flags
962 */
963 hd->tmPending = 0;
964 hd->tmState = TM_STATE_NONE;
965 hd->resetPending = 0;
966 hd->abortSCpnt = NULL;
967
968 /* Clear the pointer used to store
969 * single-threaded commands, i.e., those
970 * issued during a bus scan, dv and
971 * configuration pages.
972 */
973 hd->cmdPtr = NULL;
974
975 /* Initialize this SCSI Hosts' timers
976 * To use, set the timer expires field
977 * and add_timer
978 */
979 init_timer(&hd->timer);
980 hd->timer.data = (unsigned long) hd;
981 hd->timer.function = mptscsih_timer_expired;
982
983 ioc->spi_data.Saf_Te = mpt_saf_te;
984 hd->mpt_pq_filter = mpt_pq_filter;
985
243eabcf
MED		 986 hd->negoNvram = MPT_SCSICFG_USE_NVRAM;
987 ddvprintk((MYIOC_s_INFO_FMT
988 "saf_te %x mpt_pq_filter %x\n",
989 ioc->name,
990 mpt_saf_te,
991 mpt_pq_filter));
243eabcf
MED		 992 ioc->spi_data.noQas = 0;
993
243eabcf
MED		 994 init_waitqueue_head(&hd->scandv_waitq);
995 hd->scandv_wait_done = 0;
996 hd->last_queue_full = 0;
997
c92f222e
JB		 998 /* Some versions of the firmware don't support page 0; without
999 * that we can't get the parameters */
1000 if (hd->ioc->spi_data.sdp0length != 0)
1001 sh->transportt = mptspi_transport_template;
1002
243eabcf
MED		 1003 error = scsi_add_host (sh, &ioc->pcidev->dev);
1004 if(error) {
1005 dprintk((KERN_ERR MYNAM
1006 "scsi_add_host failed\n"));
7acec1e7 1007 goto out_mptspi_probe;
243eabcf
MED		 1008 }
1009
d8e925dc
ME		 1010 /*
1011 * issue internal bus reset
1012 */
1013 if (ioc->spi_data.bus_reset)
1014 mptscsih_TMHandler(hd,
1015 MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
1016 0, 0, 0, 0, 5);
1017
243eabcf
MED		 1018 scsi_scan_host(sh);
1019 return 0;
1020
7acec1e7 1021out_mptspi_probe:
243eabcf
MED		 1022
1023 mptscsih_remove(pdev);
1024 return error;
1025}
1026
1027static struct pci_driver mptspi_driver = {
1028 .name = "mptspi",
1029 .id_table = mptspi_pci_table,
1030 .probe = mptspi_probe,
1031 .remove = __devexit_p(mptscsih_remove),
d18c3db5 1032 .shutdown = mptscsih_shutdown,
243eabcf
MED		 1033#ifdef CONFIG_PM
1034 .suspend = mptscsih_suspend,
1035 .resume = mptscsih_resume,
1036#endif
1037};
1038
1039/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1040/**
1041 * mptspi_init - Register MPT adapter(s) as SCSI host(s) with
1042 * linux scsi mid-layer.
1043 *
1044 * Returns 0 for success, non-zero for failure.
1045 */
1046static int __init
1047mptspi_init(void)
1048{
243eabcf
MED		 1049 show_mptmod_ver(my_NAME, my_VERSION);
1050
c92f222e
JB		 1051 mptspi_transport_template = spi_attach_transport(&mptspi_transport_functions);
1052 if (!mptspi_transport_template)
1053 return -ENODEV;
1054
243eabcf
MED		 1055 mptspiDoneCtx = mpt_register(mptscsih_io_done, MPTSPI_DRIVER);
1056 mptspiTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTSPI_DRIVER);
1057 mptspiInternalCtx = mpt_register(mptscsih_scandv_complete, MPTSPI_DRIVER);
1058
c92f222e 1059 if (mpt_event_register(mptspiDoneCtx, mptspi_event_process) == 0) {
243eabcf
MED		 1060 devtprintk((KERN_INFO MYNAM
1061 ": Registered for IOC event notifications\n"));
1062 }
1063
1064 if (mpt_reset_register(mptspiDoneCtx, mptscsih_ioc_reset) == 0) {
1065 dprintk((KERN_INFO MYNAM
1066 ": Registered for IOC reset notifications\n"));
1067 }
1068
1069 return pci_register_driver(&mptspi_driver);
1070}
1071
1072/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1073/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1074/**
1075 * mptspi_exit - Unregisters MPT adapter(s)
1076 *
1077 */
1078static void __exit
1079mptspi_exit(void)
1080{
1081 pci_unregister_driver(&mptspi_driver);
d8e925dc 1082
243eabcf
MED		 1083 mpt_reset_deregister(mptspiDoneCtx);
1084 dprintk((KERN_INFO MYNAM
1085 ": Deregistered for IOC reset notifications\n"));
1086
1087 mpt_event_deregister(mptspiDoneCtx);
1088 dprintk((KERN_INFO MYNAM
1089 ": Deregistered for IOC event notifications\n"));
1090
1091 mpt_deregister(mptspiInternalCtx);
1092 mpt_deregister(mptspiTaskCtx);
1093 mpt_deregister(mptspiDoneCtx);
c92f222e 1094 spi_release_transport(mptspi_transport_template);
243eabcf
MED		 1095}
1096
1097module_init(mptspi_init);
1098module_exit(mptspi_exit);
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