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.
6 * Copyright (c) 1999-2005 LSI Logic Corporation
7 * (mailto:mpt_linux_developer@lsil.com)
10 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
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.
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.
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.
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
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
45 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
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>
59 #include <linux/raid_class.h>
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>
66 #include <scsi/scsi_transport.h>
67 #include <scsi/scsi_transport_spi.h>
72 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
73 #define my_NAME "Fusion MPT SPI Host driver"
74 #define my_VERSION MPT_LINUX_VERSION_COMMON
75 #define MYNAM "mptspi"
77 MODULE_AUTHOR(MODULEAUTHOR);
78 MODULE_DESCRIPTION(my_NAME);
79 MODULE_LICENSE("GPL");
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)");
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 *);
91 static struct scsi_transport_template *mptspi_transport_template = NULL;
93 static int mptspiDoneCtx = -1;
94 static int mptspiTaskCtx = -1;
95 static int mptspiInternalCtx = -1; /* Used only for internal commands */
97 static int mptspi_target_alloc(struct scsi_target *starget)
99 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
100 struct _MPT_SCSI_HOST *hd = (struct _MPT_SCSI_HOST *)shost->hostdata;
106 ret = mptscsih_target_alloc(starget);
110 /* if we're a device on virtual channel 1 and we're not part
111 * of an array, just return here (otherwise the setup below
112 * may actually affect a real physical device on channel 0 */
113 if (starget->channel == 1 &&
114 mptscsih_raid_id_to_num(hd, starget->id) < 0)
117 if (hd->ioc->spi_data.nvram &&
118 hd->ioc->spi_data.nvram[starget->id] != MPT_HOST_NVRAM_INVALID) {
119 u32 nvram = hd->ioc->spi_data.nvram[starget->id];
120 spi_min_period(starget) = (nvram & MPT_NVRAM_SYNC_MASK) >> MPT_NVRAM_SYNC_SHIFT;
121 spi_max_width(starget) = nvram & MPT_NVRAM_WIDE_DISABLE ? 0 : 1;
123 spi_min_period(starget) = hd->ioc->spi_data.minSyncFactor;
124 spi_max_width(starget) = hd->ioc->spi_data.maxBusWidth;
126 spi_max_offset(starget) = hd->ioc->spi_data.maxSyncOffset;
128 spi_offset(starget) = 0;
129 mptspi_write_width(starget, 0);
134 static int mptspi_read_spi_device_pg0(struct scsi_target *starget,
135 struct _CONFIG_PAGE_SCSI_DEVICE_0 *pass_pg0)
137 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
138 struct _MPT_SCSI_HOST *hd = (struct _MPT_SCSI_HOST *)shost->hostdata;
139 struct _MPT_ADAPTER *ioc = hd->ioc;
140 struct _CONFIG_PAGE_SCSI_DEVICE_0 *pg0;
143 struct _x_config_parms cfg;
144 struct _CONFIG_PAGE_HEADER hdr;
147 /* No SPI parameters for RAID devices */
148 if (starget->channel == 0 &&
149 (hd->ioc->raid_data.isRaid & (1 << starget->id)))
152 size = ioc->spi_data.sdp0length * 4;
154 if (ioc->spi_data.sdp0length & 1)
159 pg0 = dma_alloc_coherent(&ioc->pcidev->dev, size, &pg0_dma, GFP_KERNEL);
161 starget_printk(KERN_ERR, starget, "dma_alloc_coherent for parameters failed\n");
165 memset(&hdr, 0, sizeof(hdr));
167 hdr.PageVersion = ioc->spi_data.sdp0version;
168 hdr.PageLength = ioc->spi_data.sdp0length;
170 hdr.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE;
172 memset(&cfg, 0, sizeof(cfg));
174 cfg.cfghdr.hdr = &hdr;
175 cfg.physAddr = pg0_dma;
176 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
178 cfg.pageAddr = starget->id;
180 if (mpt_config(ioc, &cfg)) {
181 starget_printk(KERN_ERR, starget, "mpt_config failed\n");
185 memcpy(pass_pg0, pg0, size);
188 dma_free_coherent(&ioc->pcidev->dev, size, pg0, pg0_dma);
192 static u32 mptspi_getRP(struct scsi_target *starget)
196 nego |= spi_iu(starget) ? MPI_SCSIDEVPAGE1_RP_IU : 0;
197 nego |= spi_dt(starget) ? MPI_SCSIDEVPAGE1_RP_DT : 0;
198 nego |= spi_qas(starget) ? MPI_SCSIDEVPAGE1_RP_QAS : 0;
199 nego |= spi_hold_mcs(starget) ? MPI_SCSIDEVPAGE1_RP_HOLD_MCS : 0;
200 nego |= spi_wr_flow(starget) ? MPI_SCSIDEVPAGE1_RP_WR_FLOW : 0;
201 nego |= spi_rd_strm(starget) ? MPI_SCSIDEVPAGE1_RP_RD_STRM : 0;
202 nego |= spi_rti(starget) ? MPI_SCSIDEVPAGE1_RP_RTI : 0;
203 nego |= spi_pcomp_en(starget) ? MPI_SCSIDEVPAGE1_RP_PCOMP_EN : 0;
205 nego |= (spi_period(starget) << MPI_SCSIDEVPAGE1_RP_SHIFT_MIN_SYNC_PERIOD) & MPI_SCSIDEVPAGE1_RP_MIN_SYNC_PERIOD_MASK;
206 nego |= (spi_offset(starget) << MPI_SCSIDEVPAGE1_RP_SHIFT_MAX_SYNC_OFFSET) & MPI_SCSIDEVPAGE1_RP_MAX_SYNC_OFFSET_MASK;
207 nego |= spi_width(starget) ? MPI_SCSIDEVPAGE1_RP_WIDE : 0;
212 static void mptspi_read_parameters(struct scsi_target *starget)
215 struct _CONFIG_PAGE_SCSI_DEVICE_0 pg0;
217 mptspi_read_spi_device_pg0(starget, &pg0);
219 nego = le32_to_cpu(pg0.NegotiatedParameters);
221 spi_iu(starget) = (nego & MPI_SCSIDEVPAGE0_NP_IU) ? 1 : 0;
222 spi_dt(starget) = (nego & MPI_SCSIDEVPAGE0_NP_DT) ? 1 : 0;
223 spi_qas(starget) = (nego & MPI_SCSIDEVPAGE0_NP_QAS) ? 1 : 0;
224 spi_wr_flow(starget) = (nego & MPI_SCSIDEVPAGE0_NP_WR_FLOW) ? 1 : 0;
225 spi_rd_strm(starget) = (nego & MPI_SCSIDEVPAGE0_NP_RD_STRM) ? 1 : 0;
226 spi_rti(starget) = (nego & MPI_SCSIDEVPAGE0_NP_RTI) ? 1 : 0;
227 spi_pcomp_en(starget) = (nego & MPI_SCSIDEVPAGE0_NP_PCOMP_EN) ? 1 : 0;
228 spi_hold_mcs(starget) = (nego & MPI_SCSIDEVPAGE0_NP_HOLD_MCS) ? 1 : 0;
229 spi_period(starget) = (nego & MPI_SCSIDEVPAGE0_NP_NEG_SYNC_PERIOD_MASK) >> MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_PERIOD;
230 spi_offset(starget) = (nego & MPI_SCSIDEVPAGE0_NP_NEG_SYNC_OFFSET_MASK) >> MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_OFFSET;
231 spi_width(starget) = (nego & MPI_SCSIDEVPAGE0_NP_WIDE) ? 1 : 0;
235 mptscsih_quiesce_raid(MPT_SCSI_HOST *hd, int quiesce, int disk)
237 MpiRaidActionRequest_t *pReq;
240 /* Get and Populate a free Frame
242 if ((mf = mpt_get_msg_frame(hd->ioc->InternalCtx, hd->ioc)) == NULL) {
243 ddvprintk((MYIOC_s_WARN_FMT "_do_raid: no msg frames!\n",
247 pReq = (MpiRaidActionRequest_t *)mf;
249 pReq->Action = MPI_RAID_ACTION_QUIESCE_PHYS_IO;
251 pReq->Action = MPI_RAID_ACTION_ENABLE_PHYS_IO;
253 pReq->ChainOffset = 0;
254 pReq->Function = MPI_FUNCTION_RAID_ACTION;
255 pReq->VolumeID = disk;
257 pReq->PhysDiskNum = 0;
260 pReq->ActionDataWord = 0; /* Reserved for this action */
262 mpt_add_sge((char *)&pReq->ActionDataSGE,
263 MPT_SGE_FLAGS_SSIMPLE_READ | 0, (dma_addr_t) -1);
265 ddvprintk((MYIOC_s_INFO_FMT "RAID Volume action %x id %d\n",
266 hd->ioc->name, action, io->id));
269 hd->timer.expires = jiffies + HZ*10; /* 10 second timeout */
270 hd->scandv_wait_done = 0;
272 /* Save cmd pointer, for resource free if timeout or
277 add_timer(&hd->timer);
278 mpt_put_msg_frame(hd->ioc->InternalCtx, hd->ioc, mf);
279 wait_event(hd->scandv_waitq, hd->scandv_wait_done);
281 if ((hd->pLocal == NULL) || (hd->pLocal->completion != 0))
287 static void mptspi_dv_device(struct _MPT_SCSI_HOST *hd,
288 struct scsi_device *sdev)
290 VirtTarget *vtarget = scsi_target(sdev)->hostdata;
292 /* no DV on RAID devices */
293 if (sdev->channel == 0 &&
294 (hd->ioc->raid_data.isRaid & (1 << sdev->id)))
297 /* If this is a piece of a RAID, then quiesce first */
298 if (sdev->channel == 1 &&
299 mptscsih_quiesce_raid(hd, 1, vtarget->target_id) < 0) {
300 starget_printk(KERN_ERR, scsi_target(sdev),
301 "Integrated RAID quiesce failed\n");
307 if (sdev->channel == 1 &&
308 mptscsih_quiesce_raid(hd, 0, vtarget->target_id) < 0)
309 starget_printk(KERN_ERR, scsi_target(sdev),
310 "Integrated RAID resume failed\n");
312 mptspi_read_parameters(sdev->sdev_target);
313 spi_display_xfer_agreement(sdev->sdev_target);
314 mptspi_read_parameters(sdev->sdev_target);
317 static int mptspi_slave_alloc(struct scsi_device *sdev)
320 MPT_SCSI_HOST *hd = (MPT_SCSI_HOST *)sdev->host->hostdata;
321 /* gcc doesn't see that all uses of this variable occur within
322 * the if() statements, so stop it from whining */
325 if (sdev->channel == 1) {
326 physdisknum = mptscsih_raid_id_to_num(hd, sdev->id);
332 ret = mptscsih_slave_alloc(sdev);
337 if (sdev->channel == 1) {
338 VirtDevice *vdev = sdev->hostdata;
339 sdev->no_uld_attach = 1;
340 vdev->vtarget->tflags |= MPT_TARGET_FLAGS_RAID_COMPONENT;
341 /* The real channel for this device is zero */
342 vdev->vtarget->bus_id = 0;
343 /* The actual physdisknum (for RAID passthrough) */
344 vdev->vtarget->target_id = physdisknum;
350 static int mptspi_slave_configure(struct scsi_device *sdev)
352 int ret = mptscsih_slave_configure(sdev);
353 struct _MPT_SCSI_HOST *hd =
354 (struct _MPT_SCSI_HOST *)sdev->host->hostdata;
359 if ((sdev->channel == 1 ||
360 !(hd->ioc->raid_data.isRaid & (1 << sdev->id))) &&
361 !spi_initial_dv(sdev->sdev_target))
362 mptspi_dv_device(hd, sdev);
367 static void mptspi_slave_destroy(struct scsi_device *sdev)
369 struct scsi_target *starget = scsi_target(sdev);
370 VirtTarget *vtarget = starget->hostdata;
371 VirtDevice *vdevice = sdev->hostdata;
373 /* Will this be the last lun on a non-raid device? */
374 if (vtarget->num_luns == 1 && vdevice->configured_lun) {
375 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
378 pg1.RequestedParameters = 0;
380 pg1.Configuration = 0;
382 mptspi_write_spi_device_pg1(starget, &pg1);
385 mptscsih_slave_destroy(sdev);
388 static struct scsi_host_template mptspi_driver_template = {
389 .module = THIS_MODULE,
390 .proc_name = "mptspi",
391 .proc_info = mptscsih_proc_info,
392 .name = "MPT SPI Host",
393 .info = mptscsih_info,
394 .queuecommand = mptscsih_qcmd,
395 .target_alloc = mptspi_target_alloc,
396 .slave_alloc = mptspi_slave_alloc,
397 .slave_configure = mptspi_slave_configure,
398 .target_destroy = mptscsih_target_destroy,
399 .slave_destroy = mptspi_slave_destroy,
400 .change_queue_depth = mptscsih_change_queue_depth,
401 .eh_abort_handler = mptscsih_abort,
402 .eh_device_reset_handler = mptscsih_dev_reset,
403 .eh_bus_reset_handler = mptscsih_bus_reset,
404 .eh_host_reset_handler = mptscsih_host_reset,
405 .bios_param = mptscsih_bios_param,
406 .can_queue = MPT_SCSI_CAN_QUEUE,
408 .sg_tablesize = MPT_SCSI_SG_DEPTH,
411 .use_clustering = ENABLE_CLUSTERING,
414 static int mptspi_write_spi_device_pg1(struct scsi_target *starget,
415 struct _CONFIG_PAGE_SCSI_DEVICE_1 *pass_pg1)
417 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
418 struct _MPT_SCSI_HOST *hd = (struct _MPT_SCSI_HOST *)shost->hostdata;
419 struct _MPT_ADAPTER *ioc = hd->ioc;
420 struct _CONFIG_PAGE_SCSI_DEVICE_1 *pg1;
423 struct _x_config_parms cfg;
424 struct _CONFIG_PAGE_HEADER hdr;
427 /* don't allow updating nego parameters on RAID devices */
428 if (starget->channel == 0 &&
429 (hd->ioc->raid_data.isRaid & (1 << starget->id)))
432 size = ioc->spi_data.sdp1length * 4;
434 pg1 = dma_alloc_coherent(&ioc->pcidev->dev, size, &pg1_dma, GFP_KERNEL);
436 starget_printk(KERN_ERR, starget, "dma_alloc_coherent for parameters failed\n");
440 memset(&hdr, 0, sizeof(hdr));
442 hdr.PageVersion = ioc->spi_data.sdp1version;
443 hdr.PageLength = ioc->spi_data.sdp1length;
445 hdr.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE;
447 memset(&cfg, 0, sizeof(cfg));
449 cfg.cfghdr.hdr = &hdr;
450 cfg.physAddr = pg1_dma;
451 cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT;
453 cfg.pageAddr = starget->id;
455 memcpy(pg1, pass_pg1, size);
457 pg1->Header.PageVersion = hdr.PageVersion;
458 pg1->Header.PageLength = hdr.PageLength;
459 pg1->Header.PageNumber = hdr.PageNumber;
460 pg1->Header.PageType = hdr.PageType;
462 if (mpt_config(ioc, &cfg)) {
463 starget_printk(KERN_ERR, starget, "mpt_config failed\n");
469 dma_free_coherent(&ioc->pcidev->dev, size, pg1, pg1_dma);
473 static void mptspi_write_offset(struct scsi_target *starget, int offset)
475 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
484 if (spi_offset(starget) == -1)
485 mptspi_read_parameters(starget);
487 spi_offset(starget) = offset;
489 nego = mptspi_getRP(starget);
491 pg1.RequestedParameters = cpu_to_le32(nego);
493 pg1.Configuration = 0;
495 mptspi_write_spi_device_pg1(starget, &pg1);
498 static void mptspi_write_period(struct scsi_target *starget, int period)
500 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
509 if (spi_period(starget) == -1)
510 mptspi_read_parameters(starget);
515 } else if (period == 9) {
519 spi_period(starget) = period;
521 nego = mptspi_getRP(starget);
523 pg1.RequestedParameters = cpu_to_le32(nego);
525 pg1.Configuration = 0;
527 mptspi_write_spi_device_pg1(starget, &pg1);
530 static void mptspi_write_dt(struct scsi_target *starget, int dt)
532 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
535 if (spi_period(starget) == -1)
536 mptspi_read_parameters(starget);
538 if (!dt && spi_period(starget) < 10)
539 spi_period(starget) = 10;
541 spi_dt(starget) = dt;
543 nego = mptspi_getRP(starget);
546 pg1.RequestedParameters = cpu_to_le32(nego);
548 pg1.Configuration = 0;
550 mptspi_write_spi_device_pg1(starget, &pg1);
553 static void mptspi_write_iu(struct scsi_target *starget, int iu)
555 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
558 if (spi_period(starget) == -1)
559 mptspi_read_parameters(starget);
561 if (!iu && spi_period(starget) < 9)
562 spi_period(starget) = 9;
564 spi_iu(starget) = iu;
566 nego = mptspi_getRP(starget);
568 pg1.RequestedParameters = cpu_to_le32(nego);
570 pg1.Configuration = 0;
572 mptspi_write_spi_device_pg1(starget, &pg1);
575 #define MPTSPI_SIMPLE_TRANSPORT_PARM(parm) \
576 static void mptspi_write_##parm(struct scsi_target *starget, int parm)\
578 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; \
581 spi_##parm(starget) = parm; \
583 nego = mptspi_getRP(starget); \
585 pg1.RequestedParameters = cpu_to_le32(nego); \
587 pg1.Configuration = 0; \
589 mptspi_write_spi_device_pg1(starget, &pg1); \
592 MPTSPI_SIMPLE_TRANSPORT_PARM(rd_strm)
593 MPTSPI_SIMPLE_TRANSPORT_PARM(wr_flow)
594 MPTSPI_SIMPLE_TRANSPORT_PARM(rti)
595 MPTSPI_SIMPLE_TRANSPORT_PARM(hold_mcs)
596 MPTSPI_SIMPLE_TRANSPORT_PARM(pcomp_en)
598 static void mptspi_write_qas(struct scsi_target *starget, int qas)
600 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
601 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
602 struct _MPT_SCSI_HOST *hd = (struct _MPT_SCSI_HOST *)shost->hostdata;
603 VirtTarget *vtarget = starget->hostdata;
606 if ((vtarget->negoFlags & MPT_TARGET_NO_NEGO_QAS) ||
607 hd->ioc->spi_data.noQas)
608 spi_qas(starget) = 0;
610 spi_qas(starget) = qas;
612 nego = mptspi_getRP(starget);
614 pg1.RequestedParameters = cpu_to_le32(nego);
616 pg1.Configuration = 0;
618 mptspi_write_spi_device_pg1(starget, &pg1);
621 static void mptspi_write_width(struct scsi_target *starget, int width)
623 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
628 if (spi_period(starget) < 10)
629 spi_period(starget) = 10;
632 spi_width(starget) = width;
634 nego = mptspi_getRP(starget);
636 pg1.RequestedParameters = cpu_to_le32(nego);
638 pg1.Configuration = 0;
640 mptspi_write_spi_device_pg1(starget, &pg1);
643 struct work_queue_wrapper {
644 struct work_struct work;
645 struct _MPT_SCSI_HOST *hd;
649 static void mpt_work_wrapper(struct work_struct *work)
651 struct work_queue_wrapper *wqw =
652 container_of(work, struct work_queue_wrapper, work);
653 struct _MPT_SCSI_HOST *hd = wqw->hd;
654 struct Scsi_Host *shost = hd->ioc->sh;
655 struct scsi_device *sdev;
656 int disk = wqw->disk;
657 struct _CONFIG_PAGE_IOC_3 *pg3;
661 mpt_findImVolumes(hd->ioc);
662 pg3 = hd->ioc->raid_data.pIocPg3;
666 shost_for_each_device(sdev,shost) {
667 struct scsi_target *starget = scsi_target(sdev);
668 VirtTarget *vtarget = starget->hostdata;
670 /* only want to search RAID components */
671 if (sdev->channel != 1)
674 /* The target_id is the raid PhysDiskNum, even if
675 * starget->id is the actual target address */
676 if(vtarget->target_id != disk)
679 starget_printk(KERN_INFO, vtarget->starget,
680 "Integrated RAID requests DV of new device\n");
681 mptspi_dv_device(hd, sdev);
683 shost_printk(KERN_INFO, shost,
684 "Integrated RAID detects new device %d\n", disk);
685 scsi_scan_target(&hd->ioc->sh->shost_gendev, 1, disk, 0, 1);
689 static void mpt_dv_raid(struct _MPT_SCSI_HOST *hd, int disk)
691 struct work_queue_wrapper *wqw = kmalloc(sizeof(*wqw), GFP_ATOMIC);
694 shost_printk(KERN_ERR, hd->ioc->sh,
695 "Failed to act on RAID event for physical disk %d\n",
699 INIT_WORK(&wqw->work, mpt_work_wrapper);
703 schedule_work(&wqw->work);
707 mptspi_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
709 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
710 struct _MPT_SCSI_HOST *hd = (struct _MPT_SCSI_HOST *)ioc->sh->hostdata;
712 if (hd && event == MPI_EVENT_INTEGRATED_RAID) {
714 = (le32_to_cpu(pEvReply->Data[0]) & 0x00FF0000) >> 16;
716 if (reason == MPI_EVENT_RAID_RC_DOMAIN_VAL_NEEDED) {
717 int disk = (le32_to_cpu(pEvReply->Data[0]) & 0xFF000000) >> 24;
718 mpt_dv_raid(hd, disk);
721 return mptscsih_event_process(ioc, pEvReply);
725 mptspi_deny_binding(struct scsi_target *starget)
727 struct _MPT_SCSI_HOST *hd =
728 (struct _MPT_SCSI_HOST *)dev_to_shost(starget->dev.parent)->hostdata;
729 return ((hd->ioc->raid_data.isRaid & (1 << starget->id)) &&
730 starget->channel == 0) ? 1 : 0;
733 static struct spi_function_template mptspi_transport_functions = {
734 .get_offset = mptspi_read_parameters,
735 .set_offset = mptspi_write_offset,
737 .get_period = mptspi_read_parameters,
738 .set_period = mptspi_write_period,
740 .get_width = mptspi_read_parameters,
741 .set_width = mptspi_write_width,
743 .get_iu = mptspi_read_parameters,
744 .set_iu = mptspi_write_iu,
746 .get_dt = mptspi_read_parameters,
747 .set_dt = mptspi_write_dt,
749 .get_qas = mptspi_read_parameters,
750 .set_qas = mptspi_write_qas,
752 .get_wr_flow = mptspi_read_parameters,
753 .set_wr_flow = mptspi_write_wr_flow,
755 .get_rd_strm = mptspi_read_parameters,
756 .set_rd_strm = mptspi_write_rd_strm,
758 .get_rti = mptspi_read_parameters,
759 .set_rti = mptspi_write_rti,
761 .get_pcomp_en = mptspi_read_parameters,
762 .set_pcomp_en = mptspi_write_pcomp_en,
764 .get_hold_mcs = mptspi_read_parameters,
765 .set_hold_mcs = mptspi_write_hold_mcs,
767 .deny_binding = mptspi_deny_binding,
770 /****************************************************************************
774 static struct pci_device_id mptspi_pci_table[] = {
775 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_53C1030,
776 PCI_ANY_ID, PCI_ANY_ID },
777 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_53C1035,
778 PCI_ANY_ID, PCI_ANY_ID },
779 {0} /* Terminating entry */
781 MODULE_DEVICE_TABLE(pci, mptspi_pci_table);
785 * renegotiate for a given target
788 mptspi_dv_renegotiate_work(struct work_struct *work)
790 struct work_queue_wrapper *wqw =
791 container_of(work, struct work_queue_wrapper, work);
792 struct _MPT_SCSI_HOST *hd = wqw->hd;
793 struct scsi_device *sdev;
797 shost_for_each_device(sdev, hd->ioc->sh)
798 mptspi_dv_device(hd, sdev);
802 mptspi_dv_renegotiate(struct _MPT_SCSI_HOST *hd)
804 struct work_queue_wrapper *wqw = kmalloc(sizeof(*wqw), GFP_ATOMIC);
809 INIT_WORK(&wqw->work, mptspi_dv_renegotiate_work);
812 schedule_work(&wqw->work);
816 * spi module reset handler
819 mptspi_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
821 struct _MPT_SCSI_HOST *hd = (struct _MPT_SCSI_HOST *)ioc->sh->hostdata;
824 rc = mptscsih_ioc_reset(ioc, reset_phase);
826 if (reset_phase == MPT_IOC_POST_RESET)
827 mptspi_dv_renegotiate(hd);
834 * spi module resume handler
837 mptspi_resume(struct pci_dev *pdev)
839 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
840 struct _MPT_SCSI_HOST *hd = (struct _MPT_SCSI_HOST *)ioc->sh->hostdata;
843 rc = mptscsih_resume(pdev);
844 mptspi_dv_renegotiate(hd);
850 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
851 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
853 * mptspi_probe - Installs scsi devices per bus.
854 * @pdev: Pointer to pci_dev structure
856 * Returns 0 for success, non-zero for failure.
860 mptspi_probe(struct pci_dev *pdev, const struct pci_device_id *id)
862 struct Scsi_Host *sh;
873 if ((r = mpt_attach(pdev,id)) != 0)
876 ioc = pci_get_drvdata(pdev);
877 ioc->DoneCtx = mptspiDoneCtx;
878 ioc->TaskCtx = mptspiTaskCtx;
879 ioc->InternalCtx = mptspiInternalCtx;
881 /* Added sanity check on readiness of the MPT adapter.
883 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) {
884 printk(MYIOC_s_WARN_FMT
885 "Skipping because it's not operational!\n",
888 goto out_mptspi_probe;
892 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n",
895 goto out_mptspi_probe;
898 /* Sanity check - ensure at least 1 port is INITIATOR capable
901 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
902 if (ioc->pfacts[ii].ProtocolFlags &
903 MPI_PORTFACTS_PROTOCOL_INITIATOR)
908 printk(MYIOC_s_WARN_FMT
909 "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n",
914 sh = scsi_host_alloc(&mptspi_driver_template, sizeof(MPT_SCSI_HOST));
917 printk(MYIOC_s_WARN_FMT
918 "Unable to register controller with SCSI subsystem\n",
921 goto out_mptspi_probe;
924 spin_lock_irqsave(&ioc->FreeQlock, flags);
926 /* Attach the SCSI Host to the IOC structure
934 /* set 16 byte cdb's */
935 sh->max_cmd_len = 16;
937 /* Yikes! This is important!
938 * Otherwise, by default, linux
939 * only scans target IDs 0-7!
940 * pfactsN->MaxDevices unreliable
941 * (not supported in early
942 * versions of the FW).
943 * max_id = 1 + actual max id,
944 * max_lun = 1 + actual last lun,
947 sh->max_id = MPT_MAX_SCSI_DEVICES;
949 sh->max_lun = MPT_LAST_LUN + 1;
951 * If RAID Firmware Detected, setup virtual channel
953 if ((ioc->facts.ProductID & MPI_FW_HEADER_PID_PROD_MASK)
954 > MPI_FW_HEADER_PID_PROD_TARGET_SCSI)
958 sh->this_id = ioc->pfacts[0].PortSCSIID;
962 sh->unique_id = ioc->id;
964 /* Verify that we won't exceed the maximum
965 * number of chain buffers
966 * We can optimize: ZZ = req_sz/sizeof(SGE)
968 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ
969 * + (req_sz - 64)/sizeof(SGE)
970 * A slightly different algorithm is required for
973 scale = ioc->req_sz/(sizeof(dma_addr_t) + sizeof(u32));
974 if (sizeof(dma_addr_t) == sizeof(u64)) {
975 numSGE = (scale - 1) *
976 (ioc->facts.MaxChainDepth-1) + scale +
977 (ioc->req_sz - 60) / (sizeof(dma_addr_t) +
980 numSGE = 1 + (scale - 1) *
981 (ioc->facts.MaxChainDepth-1) + scale +
982 (ioc->req_sz - 64) / (sizeof(dma_addr_t) +
986 if (numSGE < sh->sg_tablesize) {
987 /* Reset this value */
988 dprintk((MYIOC_s_INFO_FMT
989 "Resetting sg_tablesize to %d from %d\n",
990 ioc->name, numSGE, sh->sg_tablesize));
991 sh->sg_tablesize = numSGE;
994 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
996 hd = (MPT_SCSI_HOST *) sh->hostdata;
999 /* SCSI needs scsi_cmnd lookup table!
1000 * (with size equal to req_depth*PtrSz!)
1002 hd->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC);
1003 if (!hd->ScsiLookup) {
1005 goto out_mptspi_probe;
1008 dprintk((MYIOC_s_INFO_FMT "ScsiLookup @ %p\n",
1009 ioc->name, hd->ScsiLookup));
1011 /* Allocate memory for the device structures.
1012 * A non-Null pointer at an offset
1013 * indicates a device exists.
1014 * max_id = 1 + maximum id (hosts.h)
1016 hd->Targets = kcalloc(sh->max_id * (sh->max_channel + 1),
1017 sizeof(void *), GFP_ATOMIC);
1020 goto out_mptspi_probe;
1023 dprintk((KERN_INFO " vdev @ %p\n", hd->Targets));
1025 /* Clear the TM flags
1028 hd->tmState = TM_STATE_NONE;
1029 hd->resetPending = 0;
1030 hd->abortSCpnt = NULL;
1032 /* Clear the pointer used to store
1033 * single-threaded commands, i.e., those
1034 * issued during a bus scan, dv and
1035 * configuration pages.
1039 /* Initialize this SCSI Hosts' timers
1040 * To use, set the timer expires field
1043 init_timer(&hd->timer);
1044 hd->timer.data = (unsigned long) hd;
1045 hd->timer.function = mptscsih_timer_expired;
1047 ioc->spi_data.Saf_Te = mpt_saf_te;
1049 hd->negoNvram = MPT_SCSICFG_USE_NVRAM;
1050 ddvprintk((MYIOC_s_INFO_FMT
1054 ioc->spi_data.noQas = 0;
1056 init_waitqueue_head(&hd->scandv_waitq);
1057 hd->scandv_wait_done = 0;
1058 hd->last_queue_full = 0;
1060 /* Some versions of the firmware don't support page 0; without
1061 * that we can't get the parameters */
1062 if (hd->ioc->spi_data.sdp0length != 0)
1063 sh->transportt = mptspi_transport_template;
1065 error = scsi_add_host (sh, &ioc->pcidev->dev);
1067 dprintk((KERN_ERR MYNAM
1068 "scsi_add_host failed\n"));
1069 goto out_mptspi_probe;
1073 * issue internal bus reset
1075 if (ioc->spi_data.bus_reset)
1076 mptscsih_TMHandler(hd,
1077 MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
1085 mptscsih_remove(pdev);
1089 static struct pci_driver mptspi_driver = {
1091 .id_table = mptspi_pci_table,
1092 .probe = mptspi_probe,
1093 .remove = __devexit_p(mptscsih_remove),
1094 .shutdown = mptscsih_shutdown,
1096 .suspend = mptscsih_suspend,
1097 .resume = mptspi_resume,
1101 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1103 * mptspi_init - Register MPT adapter(s) as SCSI host(s) with SCSI mid-layer.
1105 * Returns 0 for success, non-zero for failure.
1110 show_mptmod_ver(my_NAME, my_VERSION);
1112 mptspi_transport_template = spi_attach_transport(&mptspi_transport_functions);
1113 if (!mptspi_transport_template)
1116 mptspiDoneCtx = mpt_register(mptscsih_io_done, MPTSPI_DRIVER);
1117 mptspiTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTSPI_DRIVER);
1118 mptspiInternalCtx = mpt_register(mptscsih_scandv_complete, MPTSPI_DRIVER);
1120 if (mpt_event_register(mptspiDoneCtx, mptspi_event_process) == 0) {
1121 devtverboseprintk((KERN_INFO MYNAM
1122 ": Registered for IOC event notifications\n"));
1125 if (mpt_reset_register(mptspiDoneCtx, mptspi_ioc_reset) == 0) {
1126 dprintk((KERN_INFO MYNAM
1127 ": Registered for IOC reset notifications\n"));
1130 return pci_register_driver(&mptspi_driver);
1133 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1134 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1136 * mptspi_exit - Unregisters MPT adapter(s)
1141 pci_unregister_driver(&mptspi_driver);
1143 mpt_reset_deregister(mptspiDoneCtx);
1144 dprintk((KERN_INFO MYNAM
1145 ": Deregistered for IOC reset notifications\n"));
1147 mpt_event_deregister(mptspiDoneCtx);
1148 dprintk((KERN_INFO MYNAM
1149 ": Deregistered for IOC event notifications\n"));
1151 mpt_deregister(mptspiInternalCtx);
1152 mpt_deregister(mptspiTaskCtx);
1153 mpt_deregister(mptspiDoneCtx);
1154 spi_release_transport(mptspi_transport_template);
1157 module_init(mptspi_init);
1158 module_exit(mptspi_exit);