2 * linux/drivers/message/fusion/mptspi.c
3 * For use with LSI PCI chip/adapter(s)
4 * running LSI Fusion MPT (Message Passing Technology) firmware.
6 * Copyright (c) 1999-2008 LSI Corporation
7 * (mailto:DL-MPTFusionLinux@lsi.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/module.h>
48 #include <linux/kernel.h>
49 #include <linux/slab.h>
50 #include <linux/init.h>
51 #include <linux/errno.h>
52 #include <linux/kdev_t.h>
53 #include <linux/blkdev.h>
54 #include <linux/delay.h> /* for mdelay */
55 #include <linux/interrupt.h> /* needed for in_interrupt() proto */
56 #include <linux/reboot.h> /* notifier code */
57 #include <linux/workqueue.h>
58 #include <linux/raid_class.h>
60 #include <scsi/scsi.h>
61 #include <scsi/scsi_cmnd.h>
62 #include <scsi/scsi_device.h>
63 #include <scsi/scsi_host.h>
64 #include <scsi/scsi_tcq.h>
65 #include <scsi/scsi_transport.h>
66 #include <scsi/scsi_transport_spi.h>
67 #include <scsi/scsi_dbg.h>
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");
80 MODULE_VERSION(my_VERSION);
82 /* Command line args */
83 static int mpt_saf_te = MPTSCSIH_SAF_TE;
84 module_param(mpt_saf_te, int, 0);
85 MODULE_PARM_DESC(mpt_saf_te, " Force enabling SEP Processor: enable=1 (default=MPTSCSIH_SAF_TE=0)");
87 static void mptspi_write_offset(struct scsi_target *, int);
88 static void mptspi_write_width(struct scsi_target *, int);
89 static int mptspi_write_spi_device_pg1(struct scsi_target *,
90 struct _CONFIG_PAGE_SCSI_DEVICE_1 *);
92 static struct scsi_transport_template *mptspi_transport_template = NULL;
94 static u8 mptspiDoneCtx = MPT_MAX_PROTOCOL_DRIVERS;
95 static u8 mptspiTaskCtx = MPT_MAX_PROTOCOL_DRIVERS;
96 static u8 mptspiInternalCtx = MPT_MAX_PROTOCOL_DRIVERS; /* Used only for internal commands */
99 * mptspi_setTargetNegoParms - Update the target negotiation parameters
100 * @hd: Pointer to a SCSI Host Structure
101 * @target: per target private data
104 * Update the target negotiation parameters based on the the Inquiry
105 * data, adapter capabilities, and NVRAM settings.
108 mptspi_setTargetNegoParms(MPT_SCSI_HOST *hd, VirtTarget *target,
109 struct scsi_device *sdev)
111 MPT_ADAPTER *ioc = hd->ioc;
112 SpiCfgData *pspi_data = &ioc->spi_data;
113 int id = (int) target->id;
115 u8 width = MPT_NARROW;
116 u8 factor = MPT_ASYNC;
121 target->negoFlags = pspi_data->noQas;
123 if (sdev->scsi_level < SCSI_2) {
126 offset = pspi_data->maxSyncOffset;
127 target->tflags &= ~MPT_TARGET_FLAGS_Q_YES;
129 if (scsi_device_wide(sdev))
132 if (scsi_device_sync(sdev)) {
133 factor = pspi_data->minSyncFactor;
134 if (!scsi_device_dt(sdev))
137 if (!scsi_device_ius(sdev) &&
138 !scsi_device_qas(sdev))
139 factor = MPT_ULTRA160;
141 factor = MPT_ULTRA320;
142 if (scsi_device_qas(sdev)) {
144 printk(MYIOC_s_DEBUG_FMT "Enabling QAS due to "
145 "byte56=%02x on id=%d!\n", ioc->name,
146 scsi_device_qas(sdev), id));
149 if (sdev->type == TYPE_TAPE &&
150 scsi_device_ius(sdev))
151 target->negoFlags |= MPT_TAPE_NEGO_IDP;
154 offset = pspi_data->maxSyncOffset;
156 /* If RAID, never disable QAS
157 * else if non RAID, do not disable
158 * QAS if bit 1 is set
159 * bit 1 QAS support, non-raid only
162 if (target->raidVolume == 1)
170 if (!sdev->tagged_supported)
171 target->tflags &= ~MPT_TARGET_FLAGS_Q_YES;
173 /* Update tflags based on NVRAM settings. (SCSI only)
175 if (pspi_data->nvram && (pspi_data->nvram[id] != MPT_HOST_NVRAM_INVALID)) {
176 nvram = pspi_data->nvram[id];
177 nfactor = (nvram & MPT_NVRAM_SYNC_MASK) >> 8;
180 width = nvram & MPT_NVRAM_WIDE_DISABLE ? 0 : 1;
183 /* Ensure factor is set to the
184 * maximum of: adapter, nvram, inquiry
187 if (nfactor < pspi_data->minSyncFactor )
188 nfactor = pspi_data->minSyncFactor;
190 factor = max(factor, nfactor);
191 if (factor == MPT_ASYNC)
202 /* Make sure data is consistent
204 if ((!width) && (factor < MPT_ULTRA2))
207 /* Save the data to the target structure.
209 target->minSyncFactor = factor;
210 target->maxOffset = offset;
211 target->maxWidth = width;
213 target->tflags |= MPT_TARGET_FLAGS_VALID_NEGO;
215 /* Disable unused features.
218 target->negoFlags |= MPT_TARGET_NO_NEGO_WIDE;
221 target->negoFlags |= MPT_TARGET_NO_NEGO_SYNC;
223 if ( factor > MPT_ULTRA320 )
226 if (noQas && (pspi_data->noQas == 0)) {
227 pspi_data->noQas |= MPT_TARGET_NO_NEGO_QAS;
228 target->negoFlags |= MPT_TARGET_NO_NEGO_QAS;
230 /* Disable QAS in a mixed configuration case
233 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT
234 "Disabling QAS due to noQas=%02x on id=%d!\n", ioc->name, noQas, id));
239 * mptspi_writeIOCPage4 - write IOC Page 4
240 * @hd: Pointer to a SCSI Host Structure
241 * @channel: channel number
242 * @id: write IOC Page4 for this ID & Bus
244 * Return: -EAGAIN if unable to obtain a Message Frame
247 * Remark: We do not wait for a return, write pages sequentially.
250 mptspi_writeIOCPage4(MPT_SCSI_HOST *hd, u8 channel , u8 id)
252 MPT_ADAPTER *ioc = hd->ioc;
254 IOCPage4_t *IOCPage4Ptr;
262 /* Get a MF for this command.
264 if ((mf = mpt_get_msg_frame(ioc->DoneCtx, ioc)) == NULL) {
265 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT
266 "writeIOCPage4 : no msg frames!\n",ioc->name));
270 /* Set the request and the data pointers.
271 * Place data at end of MF.
273 pReq = (Config_t *)mf;
275 req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
276 frameOffset = ioc->req_sz - sizeof(IOCPage4_t);
278 /* Complete the request frame (same for all requests).
280 pReq->Action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT;
282 pReq->ChainOffset = 0;
283 pReq->Function = MPI_FUNCTION_CONFIG;
284 pReq->ExtPageLength = 0;
285 pReq->ExtPageType = 0;
287 for (ii=0; ii < 8; ii++) {
288 pReq->Reserved2[ii] = 0;
291 IOCPage4Ptr = ioc->spi_data.pIocPg4;
292 dataDma = ioc->spi_data.IocPg4_dma;
293 ii = IOCPage4Ptr->ActiveSEP++;
294 IOCPage4Ptr->SEP[ii].SEPTargetID = id;
295 IOCPage4Ptr->SEP[ii].SEPBus = channel;
296 pReq->Header = IOCPage4Ptr->Header;
297 pReq->PageAddress = cpu_to_le32(id | (channel << 8 ));
299 /* Add a SGE to the config request.
301 flagsLength = MPT_SGE_FLAGS_SSIMPLE_WRITE |
302 (IOCPage4Ptr->Header.PageLength + ii) * 4;
304 ioc->add_sge((char *)&pReq->PageBufferSGE, flagsLength, dataDma);
306 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT
307 "writeIOCPage4: MaxSEP=%d ActiveSEP=%d id=%d bus=%d\n",
308 ioc->name, IOCPage4Ptr->MaxSEP, IOCPage4Ptr->ActiveSEP, id, channel));
310 mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
316 * mptspi_initTarget - Target, LUN alloc/free functionality.
317 * @hd: Pointer to MPT_SCSI_HOST structure
318 * @vtarget: per target private data
321 * NOTE: It's only SAFE to call this routine if data points to
322 * sane & valid STANDARD INQUIRY data!
324 * Allocate and initialize memory for this target.
329 mptspi_initTarget(MPT_SCSI_HOST *hd, VirtTarget *vtarget,
330 struct scsi_device *sdev)
333 /* Is LUN supported? If so, upper 2 bits will be 0
334 * in first byte of inquiry data.
336 if (sdev->inq_periph_qual != 0)
342 vtarget->type = sdev->type;
344 if ((sdev->type == TYPE_PROCESSOR) && (hd->ioc->spi_data.Saf_Te)) {
345 /* Treat all Processors as SAF-TE if
346 * command line option is set */
347 vtarget->tflags |= MPT_TARGET_FLAGS_SAF_TE_ISSUED;
348 mptspi_writeIOCPage4(hd, vtarget->channel, vtarget->id);
349 }else if ((sdev->type == TYPE_PROCESSOR) &&
350 !(vtarget->tflags & MPT_TARGET_FLAGS_SAF_TE_ISSUED )) {
351 if (sdev->inquiry_len > 49 ) {
352 if (sdev->inquiry[44] == 'S' &&
353 sdev->inquiry[45] == 'A' &&
354 sdev->inquiry[46] == 'F' &&
355 sdev->inquiry[47] == '-' &&
356 sdev->inquiry[48] == 'T' &&
357 sdev->inquiry[49] == 'E' ) {
358 vtarget->tflags |= MPT_TARGET_FLAGS_SAF_TE_ISSUED;
359 mptspi_writeIOCPage4(hd, vtarget->channel, vtarget->id);
363 mptspi_setTargetNegoParms(hd, vtarget, sdev);
367 * mptspi_is_raid - Determines whether target is belonging to volume
368 * @hd: Pointer to a SCSI HOST structure
369 * @id: target device id
377 mptspi_is_raid(struct _MPT_SCSI_HOST *hd, u32 id)
380 MPT_ADAPTER *ioc = hd->ioc;
382 if (!ioc->raid_data.pIocPg2)
385 if (!ioc->raid_data.pIocPg2->NumActiveVolumes)
387 for (i=0; i < ioc->raid_data.pIocPg2->NumActiveVolumes; i++) {
388 if (ioc->raid_data.pIocPg2->RaidVolume[i].VolumeID == id) {
398 static int mptspi_target_alloc(struct scsi_target *starget)
400 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
401 struct _MPT_SCSI_HOST *hd = shost_priv(shost);
409 vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL);
413 vtarget->ioc_id = ioc->id;
414 vtarget->tflags = MPT_TARGET_FLAGS_Q_YES;
415 vtarget->id = (u8)starget->id;
416 vtarget->channel = (u8)starget->channel;
417 vtarget->starget = starget;
418 starget->hostdata = vtarget;
420 if (starget->channel == 1) {
421 if (mptscsih_is_phys_disk(ioc, 0, starget->id) == 0)
423 vtarget->tflags |= MPT_TARGET_FLAGS_RAID_COMPONENT;
424 /* The real channel for this device is zero */
425 vtarget->channel = 0;
426 /* The actual physdisknum (for RAID passthrough) */
427 vtarget->id = mptscsih_raid_id_to_num(ioc, 0,
431 if (starget->channel == 0 &&
432 mptspi_is_raid(hd, starget->id)) {
433 vtarget->raidVolume = 1;
434 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT
435 "RAID Volume @ channel=%d id=%d\n", ioc->name, starget->channel,
439 if (ioc->spi_data.nvram &&
440 ioc->spi_data.nvram[starget->id] != MPT_HOST_NVRAM_INVALID) {
441 u32 nvram = ioc->spi_data.nvram[starget->id];
442 spi_min_period(starget) = (nvram & MPT_NVRAM_SYNC_MASK) >> MPT_NVRAM_SYNC_SHIFT;
443 spi_max_width(starget) = nvram & MPT_NVRAM_WIDE_DISABLE ? 0 : 1;
445 spi_min_period(starget) = ioc->spi_data.minSyncFactor;
446 spi_max_width(starget) = ioc->spi_data.maxBusWidth;
448 spi_max_offset(starget) = ioc->spi_data.maxSyncOffset;
450 spi_offset(starget) = 0;
451 spi_period(starget) = 0xFF;
452 mptspi_write_width(starget, 0);
458 mptspi_target_destroy(struct scsi_target *starget)
460 if (starget->hostdata)
461 kfree(starget->hostdata);
462 starget->hostdata = NULL;
466 * mptspi_print_write_nego - negotiation parameters debug info that is being sent
467 * @hd: Pointer to a SCSI HOST structure
468 * @starget: SCSI target
469 * @ii: negotiation parameters
473 mptspi_print_write_nego(struct _MPT_SCSI_HOST *hd, struct scsi_target *starget, u32 ii)
475 ddvprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "id=%d Requested = 0x%08x"
476 " ( %s factor = 0x%02x @ offset = 0x%02x %s%s%s%s%s%s%s%s)\n",
477 hd->ioc->name, starget->id, ii,
478 ii & MPI_SCSIDEVPAGE0_NP_WIDE ? "Wide ": "",
479 ((ii >> 8) & 0xFF), ((ii >> 16) & 0xFF),
480 ii & MPI_SCSIDEVPAGE0_NP_IU ? "IU ": "",
481 ii & MPI_SCSIDEVPAGE0_NP_DT ? "DT ": "",
482 ii & MPI_SCSIDEVPAGE0_NP_QAS ? "QAS ": "",
483 ii & MPI_SCSIDEVPAGE0_NP_HOLD_MCS ? "HOLDMCS ": "",
484 ii & MPI_SCSIDEVPAGE0_NP_WR_FLOW ? "WRFLOW ": "",
485 ii & MPI_SCSIDEVPAGE0_NP_RD_STRM ? "RDSTRM ": "",
486 ii & MPI_SCSIDEVPAGE0_NP_RTI ? "RTI ": "",
487 ii & MPI_SCSIDEVPAGE0_NP_PCOMP_EN ? "PCOMP ": ""));
491 * mptspi_print_read_nego - negotiation parameters debug info that is being read
492 * @hd: Pointer to a SCSI HOST structure
493 * @starget: SCSI target
494 * @ii: negotiation parameters
498 mptspi_print_read_nego(struct _MPT_SCSI_HOST *hd, struct scsi_target *starget, u32 ii)
500 ddvprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "id=%d Read = 0x%08x"
501 " ( %s factor = 0x%02x @ offset = 0x%02x %s%s%s%s%s%s%s%s)\n",
502 hd->ioc->name, starget->id, ii,
503 ii & MPI_SCSIDEVPAGE0_NP_WIDE ? "Wide ": "",
504 ((ii >> 8) & 0xFF), ((ii >> 16) & 0xFF),
505 ii & MPI_SCSIDEVPAGE0_NP_IU ? "IU ": "",
506 ii & MPI_SCSIDEVPAGE0_NP_DT ? "DT ": "",
507 ii & MPI_SCSIDEVPAGE0_NP_QAS ? "QAS ": "",
508 ii & MPI_SCSIDEVPAGE0_NP_HOLD_MCS ? "HOLDMCS ": "",
509 ii & MPI_SCSIDEVPAGE0_NP_WR_FLOW ? "WRFLOW ": "",
510 ii & MPI_SCSIDEVPAGE0_NP_RD_STRM ? "RDSTRM ": "",
511 ii & MPI_SCSIDEVPAGE0_NP_RTI ? "RTI ": "",
512 ii & MPI_SCSIDEVPAGE0_NP_PCOMP_EN ? "PCOMP ": ""));
515 static int mptspi_read_spi_device_pg0(struct scsi_target *starget,
516 struct _CONFIG_PAGE_SCSI_DEVICE_0 *pass_pg0)
518 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
519 struct _MPT_SCSI_HOST *hd = shost_priv(shost);
520 struct _MPT_ADAPTER *ioc = hd->ioc;
521 struct _CONFIG_PAGE_SCSI_DEVICE_0 *spi_dev_pg0;
522 dma_addr_t spi_dev_pg0_dma;
524 struct _x_config_parms cfg;
525 struct _CONFIG_PAGE_HEADER hdr;
528 /* No SPI parameters for RAID devices */
529 if (starget->channel == 0 &&
530 mptspi_is_raid(hd, starget->id))
533 size = ioc->spi_data.sdp0length * 4;
535 if (ioc->spi_data.sdp0length & 1)
540 spi_dev_pg0 = dma_alloc_coherent(&ioc->pcidev->dev, size, &spi_dev_pg0_dma, GFP_KERNEL);
541 if (spi_dev_pg0 == NULL) {
542 starget_printk(KERN_ERR, starget, MYIOC_s_FMT
543 "dma_alloc_coherent for parameters failed\n", ioc->name);
547 memset(&hdr, 0, sizeof(hdr));
549 hdr.PageVersion = ioc->spi_data.sdp0version;
550 hdr.PageLength = ioc->spi_data.sdp0length;
552 hdr.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE;
554 memset(&cfg, 0, sizeof(cfg));
556 cfg.cfghdr.hdr = &hdr;
557 cfg.physAddr = spi_dev_pg0_dma;
558 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
560 cfg.pageAddr = starget->id;
562 if (mpt_config(ioc, &cfg)) {
563 starget_printk(KERN_ERR, starget, MYIOC_s_FMT "mpt_config failed\n", ioc->name);
567 memcpy(pass_pg0, spi_dev_pg0, size);
569 mptspi_print_read_nego(hd, starget, le32_to_cpu(spi_dev_pg0->NegotiatedParameters));
572 dma_free_coherent(&ioc->pcidev->dev, size, spi_dev_pg0, spi_dev_pg0_dma);
576 static u32 mptspi_getRP(struct scsi_target *starget)
580 nego |= spi_iu(starget) ? MPI_SCSIDEVPAGE1_RP_IU : 0;
581 nego |= spi_dt(starget) ? MPI_SCSIDEVPAGE1_RP_DT : 0;
582 nego |= spi_qas(starget) ? MPI_SCSIDEVPAGE1_RP_QAS : 0;
583 nego |= spi_hold_mcs(starget) ? MPI_SCSIDEVPAGE1_RP_HOLD_MCS : 0;
584 nego |= spi_wr_flow(starget) ? MPI_SCSIDEVPAGE1_RP_WR_FLOW : 0;
585 nego |= spi_rd_strm(starget) ? MPI_SCSIDEVPAGE1_RP_RD_STRM : 0;
586 nego |= spi_rti(starget) ? MPI_SCSIDEVPAGE1_RP_RTI : 0;
587 nego |= spi_pcomp_en(starget) ? MPI_SCSIDEVPAGE1_RP_PCOMP_EN : 0;
589 nego |= (spi_period(starget) << MPI_SCSIDEVPAGE1_RP_SHIFT_MIN_SYNC_PERIOD) & MPI_SCSIDEVPAGE1_RP_MIN_SYNC_PERIOD_MASK;
590 nego |= (spi_offset(starget) << MPI_SCSIDEVPAGE1_RP_SHIFT_MAX_SYNC_OFFSET) & MPI_SCSIDEVPAGE1_RP_MAX_SYNC_OFFSET_MASK;
591 nego |= spi_width(starget) ? MPI_SCSIDEVPAGE1_RP_WIDE : 0;
596 static void mptspi_read_parameters(struct scsi_target *starget)
599 struct _CONFIG_PAGE_SCSI_DEVICE_0 spi_dev_pg0;
601 mptspi_read_spi_device_pg0(starget, &spi_dev_pg0);
603 nego = le32_to_cpu(spi_dev_pg0.NegotiatedParameters);
605 spi_iu(starget) = (nego & MPI_SCSIDEVPAGE0_NP_IU) ? 1 : 0;
606 spi_dt(starget) = (nego & MPI_SCSIDEVPAGE0_NP_DT) ? 1 : 0;
607 spi_qas(starget) = (nego & MPI_SCSIDEVPAGE0_NP_QAS) ? 1 : 0;
608 spi_wr_flow(starget) = (nego & MPI_SCSIDEVPAGE0_NP_WR_FLOW) ? 1 : 0;
609 spi_rd_strm(starget) = (nego & MPI_SCSIDEVPAGE0_NP_RD_STRM) ? 1 : 0;
610 spi_rti(starget) = (nego & MPI_SCSIDEVPAGE0_NP_RTI) ? 1 : 0;
611 spi_pcomp_en(starget) = (nego & MPI_SCSIDEVPAGE0_NP_PCOMP_EN) ? 1 : 0;
612 spi_hold_mcs(starget) = (nego & MPI_SCSIDEVPAGE0_NP_HOLD_MCS) ? 1 : 0;
613 spi_period(starget) = (nego & MPI_SCSIDEVPAGE0_NP_NEG_SYNC_PERIOD_MASK) >> MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_PERIOD;
614 spi_offset(starget) = (nego & MPI_SCSIDEVPAGE0_NP_NEG_SYNC_OFFSET_MASK) >> MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_OFFSET;
615 spi_width(starget) = (nego & MPI_SCSIDEVPAGE0_NP_WIDE) ? 1 : 0;
619 mptscsih_quiesce_raid(MPT_SCSI_HOST *hd, int quiesce, u8 channel, u8 id)
621 MPT_ADAPTER *ioc = hd->ioc;
622 MpiRaidActionRequest_t *pReq;
625 unsigned long timeleft;
627 mutex_lock(&ioc->internal_cmds.mutex);
629 /* Get and Populate a free Frame
631 if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
632 dfailprintk(hd->ioc, printk(MYIOC_s_WARN_FMT
633 "%s: no msg frames!\n", ioc->name, __func__));
637 pReq = (MpiRaidActionRequest_t *)mf;
639 pReq->Action = MPI_RAID_ACTION_QUIESCE_PHYS_IO;
641 pReq->Action = MPI_RAID_ACTION_ENABLE_PHYS_IO;
643 pReq->ChainOffset = 0;
644 pReq->Function = MPI_FUNCTION_RAID_ACTION;
646 pReq->VolumeBus = channel;
647 pReq->PhysDiskNum = 0;
650 pReq->ActionDataWord = 0; /* Reserved for this action */
652 ioc->add_sge((char *)&pReq->ActionDataSGE,
653 MPT_SGE_FLAGS_SSIMPLE_READ | 0, (dma_addr_t) -1);
655 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "RAID Volume action=%x channel=%d id=%d\n",
656 ioc->name, pReq->Action, channel, id));
658 INITIALIZE_MGMT_STATUS(ioc->internal_cmds.status)
659 mpt_put_msg_frame(ioc->InternalCtx, ioc, mf);
660 timeleft = wait_for_completion_timeout(&ioc->internal_cmds.done, 10*HZ);
661 if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
663 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: TIMED OUT!\n",
664 ioc->name, __func__));
665 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET)
668 printk(MYIOC_s_WARN_FMT "Issuing Reset from %s!!\n",
669 ioc->name, __func__);
670 mpt_HardResetHandler(ioc, CAN_SLEEP);
671 mpt_free_msg_frame(ioc, mf);
676 ret = ioc->internal_cmds.completion_code;
679 CLEAR_MGMT_STATUS(ioc->internal_cmds.status)
680 mutex_unlock(&ioc->internal_cmds.mutex);
684 static void mptspi_dv_device(struct _MPT_SCSI_HOST *hd,
685 struct scsi_device *sdev)
687 VirtTarget *vtarget = scsi_target(sdev)->hostdata;
688 MPT_ADAPTER *ioc = hd->ioc;
690 /* no DV on RAID devices */
691 if (sdev->channel == 0 &&
692 mptspi_is_raid(hd, sdev->id))
695 /* If this is a piece of a RAID, then quiesce first */
696 if (sdev->channel == 1 &&
697 mptscsih_quiesce_raid(hd, 1, vtarget->channel, vtarget->id) < 0) {
698 starget_printk(KERN_ERR, scsi_target(sdev), MYIOC_s_FMT
699 "Integrated RAID quiesce failed\n", ioc->name);
703 hd->spi_pending |= (1 << sdev->id);
705 hd->spi_pending &= ~(1 << sdev->id);
707 if (sdev->channel == 1 &&
708 mptscsih_quiesce_raid(hd, 0, vtarget->channel, vtarget->id) < 0)
709 starget_printk(KERN_ERR, scsi_target(sdev), MYIOC_s_FMT
710 "Integrated RAID resume failed\n", ioc->name);
712 mptspi_read_parameters(sdev->sdev_target);
713 spi_display_xfer_agreement(sdev->sdev_target);
714 mptspi_read_parameters(sdev->sdev_target);
717 static int mptspi_slave_alloc(struct scsi_device *sdev)
719 MPT_SCSI_HOST *hd = shost_priv(sdev->host);
722 struct scsi_target *starget;
723 MPT_ADAPTER *ioc = hd->ioc;
725 if (sdev->channel == 1 &&
726 mptscsih_is_phys_disk(ioc, 0, sdev->id) == 0)
729 vdevice = kzalloc(sizeof(VirtDevice), GFP_KERNEL);
731 printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n",
732 ioc->name, sizeof(VirtDevice));
736 vdevice->lun = sdev->lun;
737 sdev->hostdata = vdevice;
739 starget = scsi_target(sdev);
740 vtarget = starget->hostdata;
741 vdevice->vtarget = vtarget;
744 if (sdev->channel == 1)
745 sdev->no_uld_attach = 1;
750 static int mptspi_slave_configure(struct scsi_device *sdev)
752 struct _MPT_SCSI_HOST *hd = shost_priv(sdev->host);
753 VirtTarget *vtarget = scsi_target(sdev)->hostdata;
756 mptspi_initTarget(hd, vtarget, sdev);
758 ret = mptscsih_slave_configure(sdev);
763 ddvprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "id=%d min_period=0x%02x"
764 " max_offset=0x%02x max_width=%d\n", hd->ioc->name,
765 sdev->id, spi_min_period(scsi_target(sdev)),
766 spi_max_offset(scsi_target(sdev)),
767 spi_max_width(scsi_target(sdev))));
769 if ((sdev->channel == 1 ||
770 !(mptspi_is_raid(hd, sdev->id))) &&
771 !spi_initial_dv(sdev->sdev_target))
772 mptspi_dv_device(hd, sdev);
778 mptspi_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
780 struct _MPT_SCSI_HOST *hd = shost_priv(SCpnt->device->host);
781 VirtDevice *vdevice = SCpnt->device->hostdata;
782 MPT_ADAPTER *ioc = hd->ioc;
784 if (!vdevice || !vdevice->vtarget) {
785 SCpnt->result = DID_NO_CONNECT << 16;
790 if (SCpnt->device->channel == 1 &&
791 mptscsih_is_phys_disk(ioc, 0, SCpnt->device->id) == 0) {
792 SCpnt->result = DID_NO_CONNECT << 16;
797 if (spi_dv_pending(scsi_target(SCpnt->device)))
798 ddvprintk(ioc, scsi_print_command(SCpnt));
800 return mptscsih_qcmd(SCpnt,done);
803 static void mptspi_slave_destroy(struct scsi_device *sdev)
805 struct scsi_target *starget = scsi_target(sdev);
806 VirtTarget *vtarget = starget->hostdata;
807 VirtDevice *vdevice = sdev->hostdata;
809 /* Will this be the last lun on a non-raid device? */
810 if (vtarget->num_luns == 1 && vdevice->configured_lun) {
811 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
814 pg1.RequestedParameters = 0;
816 pg1.Configuration = 0;
818 mptspi_write_spi_device_pg1(starget, &pg1);
821 mptscsih_slave_destroy(sdev);
824 static struct scsi_host_template mptspi_driver_template = {
825 .module = THIS_MODULE,
826 .proc_name = "mptspi",
827 .proc_info = mptscsih_proc_info,
828 .name = "MPT SPI Host",
829 .info = mptscsih_info,
830 .queuecommand = mptspi_qcmd,
831 .target_alloc = mptspi_target_alloc,
832 .slave_alloc = mptspi_slave_alloc,
833 .slave_configure = mptspi_slave_configure,
834 .target_destroy = mptspi_target_destroy,
835 .slave_destroy = mptspi_slave_destroy,
836 .change_queue_depth = mptscsih_change_queue_depth,
837 .eh_abort_handler = mptscsih_abort,
838 .eh_device_reset_handler = mptscsih_dev_reset,
839 .eh_bus_reset_handler = mptscsih_bus_reset,
840 .eh_host_reset_handler = mptscsih_host_reset,
841 .bios_param = mptscsih_bios_param,
842 .can_queue = MPT_SCSI_CAN_QUEUE,
844 .sg_tablesize = MPT_SCSI_SG_DEPTH,
847 .use_clustering = ENABLE_CLUSTERING,
848 .shost_attrs = mptscsih_host_attrs,
851 static int mptspi_write_spi_device_pg1(struct scsi_target *starget,
852 struct _CONFIG_PAGE_SCSI_DEVICE_1 *pass_pg1)
854 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
855 struct _MPT_SCSI_HOST *hd = shost_priv(shost);
856 struct _MPT_ADAPTER *ioc = hd->ioc;
857 struct _CONFIG_PAGE_SCSI_DEVICE_1 *pg1;
860 struct _x_config_parms cfg;
861 struct _CONFIG_PAGE_HEADER hdr;
864 /* don't allow updating nego parameters on RAID devices */
865 if (starget->channel == 0 &&
866 mptspi_is_raid(hd, starget->id))
869 size = ioc->spi_data.sdp1length * 4;
871 pg1 = dma_alloc_coherent(&ioc->pcidev->dev, size, &pg1_dma, GFP_KERNEL);
873 starget_printk(KERN_ERR, starget, MYIOC_s_FMT
874 "dma_alloc_coherent for parameters failed\n", ioc->name);
878 memset(&hdr, 0, sizeof(hdr));
880 hdr.PageVersion = ioc->spi_data.sdp1version;
881 hdr.PageLength = ioc->spi_data.sdp1length;
883 hdr.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE;
885 memset(&cfg, 0, sizeof(cfg));
887 cfg.cfghdr.hdr = &hdr;
888 cfg.physAddr = pg1_dma;
889 cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT;
891 cfg.pageAddr = starget->id;
893 memcpy(pg1, pass_pg1, size);
895 pg1->Header.PageVersion = hdr.PageVersion;
896 pg1->Header.PageLength = hdr.PageLength;
897 pg1->Header.PageNumber = hdr.PageNumber;
898 pg1->Header.PageType = hdr.PageType;
900 mptspi_print_write_nego(hd, starget, le32_to_cpu(pg1->RequestedParameters));
902 if (mpt_config(ioc, &cfg)) {
903 starget_printk(KERN_ERR, starget, MYIOC_s_FMT
904 "mpt_config failed\n", ioc->name);
910 dma_free_coherent(&ioc->pcidev->dev, size, pg1, pg1_dma);
914 static void mptspi_write_offset(struct scsi_target *starget, int offset)
916 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
925 if (spi_offset(starget) == -1)
926 mptspi_read_parameters(starget);
928 spi_offset(starget) = offset;
930 nego = mptspi_getRP(starget);
932 pg1.RequestedParameters = cpu_to_le32(nego);
934 pg1.Configuration = 0;
936 mptspi_write_spi_device_pg1(starget, &pg1);
939 static void mptspi_write_period(struct scsi_target *starget, int period)
941 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
950 if (spi_period(starget) == -1)
951 mptspi_read_parameters(starget);
956 } else if (period == 9) {
960 spi_period(starget) = period;
962 nego = mptspi_getRP(starget);
964 pg1.RequestedParameters = cpu_to_le32(nego);
966 pg1.Configuration = 0;
968 mptspi_write_spi_device_pg1(starget, &pg1);
971 static void mptspi_write_dt(struct scsi_target *starget, int dt)
973 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
976 if (spi_period(starget) == -1)
977 mptspi_read_parameters(starget);
979 if (!dt && spi_period(starget) < 10)
980 spi_period(starget) = 10;
982 spi_dt(starget) = dt;
984 nego = mptspi_getRP(starget);
987 pg1.RequestedParameters = cpu_to_le32(nego);
989 pg1.Configuration = 0;
991 mptspi_write_spi_device_pg1(starget, &pg1);
994 static void mptspi_write_iu(struct scsi_target *starget, int iu)
996 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
999 if (spi_period(starget) == -1)
1000 mptspi_read_parameters(starget);
1002 if (!iu && spi_period(starget) < 9)
1003 spi_period(starget) = 9;
1005 spi_iu(starget) = iu;
1007 nego = mptspi_getRP(starget);
1009 pg1.RequestedParameters = cpu_to_le32(nego);
1011 pg1.Configuration = 0;
1013 mptspi_write_spi_device_pg1(starget, &pg1);
1016 #define MPTSPI_SIMPLE_TRANSPORT_PARM(parm) \
1017 static void mptspi_write_##parm(struct scsi_target *starget, int parm)\
1019 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; \
1022 spi_##parm(starget) = parm; \
1024 nego = mptspi_getRP(starget); \
1026 pg1.RequestedParameters = cpu_to_le32(nego); \
1028 pg1.Configuration = 0; \
1030 mptspi_write_spi_device_pg1(starget, &pg1); \
1033 MPTSPI_SIMPLE_TRANSPORT_PARM(rd_strm)
1034 MPTSPI_SIMPLE_TRANSPORT_PARM(wr_flow)
1035 MPTSPI_SIMPLE_TRANSPORT_PARM(rti)
1036 MPTSPI_SIMPLE_TRANSPORT_PARM(hold_mcs)
1037 MPTSPI_SIMPLE_TRANSPORT_PARM(pcomp_en)
1039 static void mptspi_write_qas(struct scsi_target *starget, int qas)
1041 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
1042 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
1043 struct _MPT_SCSI_HOST *hd = shost_priv(shost);
1044 VirtTarget *vtarget = starget->hostdata;
1047 if ((vtarget->negoFlags & MPT_TARGET_NO_NEGO_QAS) ||
1048 hd->ioc->spi_data.noQas)
1049 spi_qas(starget) = 0;
1051 spi_qas(starget) = qas;
1053 nego = mptspi_getRP(starget);
1055 pg1.RequestedParameters = cpu_to_le32(nego);
1057 pg1.Configuration = 0;
1059 mptspi_write_spi_device_pg1(starget, &pg1);
1062 static void mptspi_write_width(struct scsi_target *starget, int width)
1064 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
1068 spi_dt(starget) = 0;
1069 if (spi_period(starget) < 10)
1070 spi_period(starget) = 10;
1073 spi_width(starget) = width;
1075 nego = mptspi_getRP(starget);
1077 pg1.RequestedParameters = cpu_to_le32(nego);
1079 pg1.Configuration = 0;
1081 mptspi_write_spi_device_pg1(starget, &pg1);
1084 struct work_queue_wrapper {
1085 struct work_struct work;
1086 struct _MPT_SCSI_HOST *hd;
1090 static void mpt_work_wrapper(struct work_struct *work)
1092 struct work_queue_wrapper *wqw =
1093 container_of(work, struct work_queue_wrapper, work);
1094 struct _MPT_SCSI_HOST *hd = wqw->hd;
1095 MPT_ADAPTER *ioc = hd->ioc;
1096 struct Scsi_Host *shost = ioc->sh;
1097 struct scsi_device *sdev;
1098 int disk = wqw->disk;
1099 struct _CONFIG_PAGE_IOC_3 *pg3;
1103 mpt_findImVolumes(ioc);
1104 pg3 = ioc->raid_data.pIocPg3;
1108 shost_for_each_device(sdev,shost) {
1109 struct scsi_target *starget = scsi_target(sdev);
1110 VirtTarget *vtarget = starget->hostdata;
1112 /* only want to search RAID components */
1113 if (sdev->channel != 1)
1116 /* The id is the raid PhysDiskNum, even if
1117 * starget->id is the actual target address */
1118 if(vtarget->id != disk)
1121 starget_printk(KERN_INFO, vtarget->starget, MYIOC_s_FMT
1122 "Integrated RAID requests DV of new device\n", ioc->name);
1123 mptspi_dv_device(hd, sdev);
1125 shost_printk(KERN_INFO, shost, MYIOC_s_FMT
1126 "Integrated RAID detects new device %d\n", ioc->name, disk);
1127 scsi_scan_target(&ioc->sh->shost_gendev, 1, disk, 0, 1);
1131 static void mpt_dv_raid(struct _MPT_SCSI_HOST *hd, int disk)
1133 struct work_queue_wrapper *wqw = kmalloc(sizeof(*wqw), GFP_ATOMIC);
1134 MPT_ADAPTER *ioc = hd->ioc;
1137 shost_printk(KERN_ERR, ioc->sh, MYIOC_s_FMT
1138 "Failed to act on RAID event for physical disk %d\n",
1142 INIT_WORK(&wqw->work, mpt_work_wrapper);
1146 schedule_work(&wqw->work);
1150 mptspi_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
1152 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
1153 struct _MPT_SCSI_HOST *hd = shost_priv(ioc->sh);
1155 if (hd && event == MPI_EVENT_INTEGRATED_RAID) {
1157 = (le32_to_cpu(pEvReply->Data[0]) & 0x00FF0000) >> 16;
1159 if (reason == MPI_EVENT_RAID_RC_DOMAIN_VAL_NEEDED) {
1160 int disk = (le32_to_cpu(pEvReply->Data[0]) & 0xFF000000) >> 24;
1161 mpt_dv_raid(hd, disk);
1164 return mptscsih_event_process(ioc, pEvReply);
1168 mptspi_deny_binding(struct scsi_target *starget)
1170 struct _MPT_SCSI_HOST *hd =
1171 (struct _MPT_SCSI_HOST *)dev_to_shost(starget->dev.parent)->hostdata;
1172 return ((mptspi_is_raid(hd, starget->id)) &&
1173 starget->channel == 0) ? 1 : 0;
1176 static struct spi_function_template mptspi_transport_functions = {
1177 .get_offset = mptspi_read_parameters,
1178 .set_offset = mptspi_write_offset,
1180 .get_period = mptspi_read_parameters,
1181 .set_period = mptspi_write_period,
1183 .get_width = mptspi_read_parameters,
1184 .set_width = mptspi_write_width,
1186 .get_iu = mptspi_read_parameters,
1187 .set_iu = mptspi_write_iu,
1189 .get_dt = mptspi_read_parameters,
1190 .set_dt = mptspi_write_dt,
1192 .get_qas = mptspi_read_parameters,
1193 .set_qas = mptspi_write_qas,
1195 .get_wr_flow = mptspi_read_parameters,
1196 .set_wr_flow = mptspi_write_wr_flow,
1198 .get_rd_strm = mptspi_read_parameters,
1199 .set_rd_strm = mptspi_write_rd_strm,
1201 .get_rti = mptspi_read_parameters,
1202 .set_rti = mptspi_write_rti,
1204 .get_pcomp_en = mptspi_read_parameters,
1205 .set_pcomp_en = mptspi_write_pcomp_en,
1207 .get_hold_mcs = mptspi_read_parameters,
1208 .set_hold_mcs = mptspi_write_hold_mcs,
1210 .deny_binding = mptspi_deny_binding,
1213 /****************************************************************************
1214 * Supported hardware
1217 static struct pci_device_id mptspi_pci_table[] = {
1218 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_53C1030,
1219 PCI_ANY_ID, PCI_ANY_ID },
1220 { PCI_VENDOR_ID_ATTO, MPI_MANUFACTPAGE_DEVID_53C1030,
1221 PCI_ANY_ID, PCI_ANY_ID },
1222 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_53C1035,
1223 PCI_ANY_ID, PCI_ANY_ID },
1224 {0} /* Terminating entry */
1226 MODULE_DEVICE_TABLE(pci, mptspi_pci_table);
1230 * renegotiate for a given target
1233 mptspi_dv_renegotiate_work(struct work_struct *work)
1235 struct work_queue_wrapper *wqw =
1236 container_of(work, struct work_queue_wrapper, work);
1237 struct _MPT_SCSI_HOST *hd = wqw->hd;
1238 struct scsi_device *sdev;
1239 struct scsi_target *starget;
1240 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
1242 MPT_ADAPTER *ioc = hd->ioc;
1246 if (hd->spi_pending) {
1247 shost_for_each_device(sdev, ioc->sh) {
1248 if (hd->spi_pending & (1 << sdev->id))
1250 starget = scsi_target(sdev);
1251 nego = mptspi_getRP(starget);
1252 pg1.RequestedParameters = cpu_to_le32(nego);
1254 pg1.Configuration = 0;
1255 mptspi_write_spi_device_pg1(starget, &pg1);
1258 shost_for_each_device(sdev, ioc->sh)
1259 mptspi_dv_device(hd, sdev);
1264 mptspi_dv_renegotiate(struct _MPT_SCSI_HOST *hd)
1266 struct work_queue_wrapper *wqw = kmalloc(sizeof(*wqw), GFP_ATOMIC);
1271 INIT_WORK(&wqw->work, mptspi_dv_renegotiate_work);
1274 schedule_work(&wqw->work);
1278 * spi module reset handler
1281 mptspi_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
1285 rc = mptscsih_ioc_reset(ioc, reset_phase);
1287 /* only try to do a renegotiation if we're properly set up
1288 * if we get an ioc fault on bringup, ioc->sh will be NULL */
1289 if (reset_phase == MPT_IOC_POST_RESET &&
1291 struct _MPT_SCSI_HOST *hd = shost_priv(ioc->sh);
1293 mptspi_dv_renegotiate(hd);
1301 * spi module resume handler
1304 mptspi_resume(struct pci_dev *pdev)
1306 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1307 struct _MPT_SCSI_HOST *hd = shost_priv(ioc->sh);
1310 rc = mptscsih_resume(pdev);
1311 mptspi_dv_renegotiate(hd);
1317 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1318 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1320 * mptspi_probe - Installs scsi devices per bus.
1321 * @pdev: Pointer to pci_dev structure
1323 * Returns 0 for success, non-zero for failure.
1327 mptspi_probe(struct pci_dev *pdev, const struct pci_device_id *id)
1329 struct Scsi_Host *sh;
1332 unsigned long flags;
1340 if ((r = mpt_attach(pdev,id)) != 0)
1343 ioc = pci_get_drvdata(pdev);
1344 ioc->DoneCtx = mptspiDoneCtx;
1345 ioc->TaskCtx = mptspiTaskCtx;
1346 ioc->InternalCtx = mptspiInternalCtx;
1348 /* Added sanity check on readiness of the MPT adapter.
1350 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) {
1351 printk(MYIOC_s_WARN_FMT
1352 "Skipping because it's not operational!\n",
1355 goto out_mptspi_probe;
1359 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n",
1362 goto out_mptspi_probe;
1365 /* Sanity check - ensure at least 1 port is INITIATOR capable
1368 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1369 if (ioc->pfacts[ii].ProtocolFlags &
1370 MPI_PORTFACTS_PROTOCOL_INITIATOR)
1375 printk(MYIOC_s_WARN_FMT
1376 "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n",
1381 sh = scsi_host_alloc(&mptspi_driver_template, sizeof(MPT_SCSI_HOST));
1384 printk(MYIOC_s_WARN_FMT
1385 "Unable to register controller with SCSI subsystem\n",
1388 goto out_mptspi_probe;
1391 spin_lock_irqsave(&ioc->FreeQlock, flags);
1393 /* Attach the SCSI Host to the IOC structure
1401 /* set 16 byte cdb's */
1402 sh->max_cmd_len = 16;
1404 /* Yikes! This is important!
1405 * Otherwise, by default, linux
1406 * only scans target IDs 0-7!
1407 * pfactsN->MaxDevices unreliable
1408 * (not supported in early
1409 * versions of the FW).
1410 * max_id = 1 + actual max id,
1411 * max_lun = 1 + actual last lun,
1414 sh->max_id = ioc->devices_per_bus;
1416 sh->max_lun = MPT_LAST_LUN + 1;
1418 * If RAID Firmware Detected, setup virtual channel
1420 if (ioc->ir_firmware)
1421 sh->max_channel = 1;
1423 sh->max_channel = 0;
1424 sh->this_id = ioc->pfacts[0].PortSCSIID;
1428 sh->unique_id = ioc->id;
1430 /* Verify that we won't exceed the maximum
1431 * number of chain buffers
1432 * We can optimize: ZZ = req_sz/sizeof(SGE)
1434 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ
1435 * + (req_sz - 64)/sizeof(SGE)
1436 * A slightly different algorithm is required for
1439 scale = ioc->req_sz/ioc->SGE_size;
1440 if (ioc->sg_addr_size == sizeof(u64)) {
1441 numSGE = (scale - 1) *
1442 (ioc->facts.MaxChainDepth-1) + scale +
1443 (ioc->req_sz - 60) / ioc->SGE_size;
1445 numSGE = 1 + (scale - 1) *
1446 (ioc->facts.MaxChainDepth-1) + scale +
1447 (ioc->req_sz - 64) / ioc->SGE_size;
1450 if (numSGE < sh->sg_tablesize) {
1451 /* Reset this value */
1452 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1453 "Resetting sg_tablesize to %d from %d\n",
1454 ioc->name, numSGE, sh->sg_tablesize));
1455 sh->sg_tablesize = numSGE;
1458 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1460 hd = shost_priv(sh);
1463 /* SCSI needs scsi_cmnd lookup table!
1464 * (with size equal to req_depth*PtrSz!)
1466 ioc->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC);
1467 if (!ioc->ScsiLookup) {
1469 goto out_mptspi_probe;
1471 spin_lock_init(&ioc->scsi_lookup_lock);
1473 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScsiLookup @ %p\n",
1474 ioc->name, ioc->ScsiLookup));
1476 ioc->spi_data.Saf_Te = mpt_saf_te;
1477 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1481 ioc->spi_data.noQas = 0;
1483 hd->last_queue_full = 0;
1484 hd->spi_pending = 0;
1486 /* Some versions of the firmware don't support page 0; without
1487 * that we can't get the parameters */
1488 if (ioc->spi_data.sdp0length != 0)
1489 sh->transportt = mptspi_transport_template;
1491 error = scsi_add_host (sh, &ioc->pcidev->dev);
1493 dprintk(ioc, printk(MYIOC_s_ERR_FMT
1494 "scsi_add_host failed\n", ioc->name));
1495 goto out_mptspi_probe;
1499 * issue internal bus reset
1501 if (ioc->spi_data.bus_reset)
1502 mptscsih_IssueTaskMgmt(hd,
1503 MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
1511 mptscsih_remove(pdev);
1515 static struct pci_driver mptspi_driver = {
1517 .id_table = mptspi_pci_table,
1518 .probe = mptspi_probe,
1519 .remove = __devexit_p(mptscsih_remove),
1520 .shutdown = mptscsih_shutdown,
1522 .suspend = mptscsih_suspend,
1523 .resume = mptspi_resume,
1527 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1529 * mptspi_init - Register MPT adapter(s) as SCSI host(s) with SCSI mid-layer.
1531 * Returns 0 for success, non-zero for failure.
1538 show_mptmod_ver(my_NAME, my_VERSION);
1540 mptspi_transport_template = spi_attach_transport(&mptspi_transport_functions);
1541 if (!mptspi_transport_template)
1544 mptspiDoneCtx = mpt_register(mptscsih_io_done, MPTSPI_DRIVER);
1545 mptspiTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTSPI_DRIVER);
1546 mptspiInternalCtx = mpt_register(mptscsih_scandv_complete, MPTSPI_DRIVER);
1548 mpt_event_register(mptspiDoneCtx, mptspi_event_process);
1549 mpt_reset_register(mptspiDoneCtx, mptspi_ioc_reset);
1551 error = pci_register_driver(&mptspi_driver);
1553 spi_release_transport(mptspi_transport_template);
1558 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1559 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1561 * mptspi_exit - Unregisters MPT adapter(s)
1566 pci_unregister_driver(&mptspi_driver);
1568 mpt_reset_deregister(mptspiDoneCtx);
1569 mpt_event_deregister(mptspiDoneCtx);
1571 mpt_deregister(mptspiInternalCtx);
1572 mpt_deregister(mptspiTaskCtx);
1573 mpt_deregister(mptspiDoneCtx);
1574 spi_release_transport(mptspi_transport_template);
1577 module_init(mptspi_init);
1578 module_exit(mptspi_exit);