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[TG3]: Set minimal hw interrupt mitigation.
[linux-2.6/verdex.git] / drivers / message / fusion / mptctl.c
blob70b0cfb5ac5c12956e4afcb171bd528221b821ee
1 /*
2 * linux/drivers/message/fusion/mptctl.c
3 * Fusion MPT misc device (ioctl) driver.
4 * For use with PCI chip/adapter(s):
5 * LSIFC9xx/LSI409xx Fibre Channel
6 * running LSI Logic Fusion MPT (Message Passing Technology) firmware.
7 *
8 * Credits:
9 * This driver would not exist if not for Alan Cox's development
10 * of the linux i2o driver.
11 *
12 * A special thanks to Pamela Delaney (LSI Logic) for tons of work
13 * and countless enhancements while adding support for the 1030
14 * chip family. Pam has been instrumental in the development of
15 * of the 2.xx.xx series fusion drivers, and her contributions are
16 * far too numerous to hope to list in one place.
17 *
18 * A huge debt of gratitude is owed to David S. Miller (DaveM)
19 * for fixing much of the stupid and broken stuff in the early
20 * driver while porting to sparc64 platform. THANK YOU!
21 *
22 * A big THANKS to Eddie C. Dost for fixing the ioctl path
23 * and most importantly f/w download on sparc64 platform!
24 * (plus Eddie's other helpful hints and insights)
25 *
26 * Thanks to Arnaldo Carvalho de Melo for finding and patching
27 * a potential memory leak in mptctl_do_fw_download(),
28 * and for some kmalloc insight:-)
29 *
30 * (see also mptbase.c)
31 *
32 * Copyright (c) 1999-2004 LSI Logic Corporation
33 * Originally By: Steven J. Ralston, Noah Romer
34 * (mailto:sjralston1@netscape.net)
35 * (mailto:mpt_linux_developer@lsil.com)
36 *
37 * $Id: mptctl.c,v 1.63 2002/12/03 21:26:33 pdelaney Exp $
38 */
39 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
40 /*
41 This program is free software; you can redistribute it and/or modify
42 it under the terms of the GNU General Public License as published by
43 the Free Software Foundation; version 2 of the License.
44
45 This program is distributed in the hope that it will be useful,
46 but WITHOUT ANY WARRANTY; without even the implied warranty of
47 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
48 GNU General Public License for more details.
49
50 NO WARRANTY
51 THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
52 CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
53 LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
54 MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
55 solely responsible for determining the appropriateness of using and
56 distributing the Program and assumes all risks associated with its
57 exercise of rights under this Agreement, including but not limited to
58 the risks and costs of program errors, damage to or loss of data,
59 programs or equipment, and unavailability or interruption of operations.
60
61 DISCLAIMER OF LIABILITY
62 NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
63 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
64 DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
65 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
66 TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
67 USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
68 HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
69
70 You should have received a copy of the GNU General Public License
71 along with this program; if not, write to the Free Software
72 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
73 */
74 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
75
76 #include <linux/version.h>
77 #include <linux/kernel.h>
78 #include <linux/module.h>
79 #include <linux/errno.h>
80 #include <linux/init.h>
81 #include <linux/slab.h>
82 #include <linux/types.h>
83 #include <linux/pci.h>
84 #include <linux/delay.h> /* for mdelay */
85 #include <linux/miscdevice.h>
86 #include <linux/smp_lock.h>
87 #include <linux/compat.h>
88
89 #include <asm/io.h>
90 #include <asm/uaccess.h>
91
92 #include <scsi/scsi.h>
93 #include <scsi/scsi_cmnd.h>
94 #include <scsi/scsi_device.h>
95 #include <scsi/scsi_host.h>
96 #include <scsi/scsi_tcq.h>
97
98 #define COPYRIGHT "Copyright (c) 1999-2004 LSI Logic Corporation"
99 #define MODULEAUTHOR "Steven J. Ralston, Noah Romer, Pamela Delaney"
100 #include "mptbase.h"
101 #include "mptctl.h"
102
103 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
104 #define my_NAME "Fusion MPT misc device (ioctl) driver"
105 #define my_VERSION MPT_LINUX_VERSION_COMMON
106 #define MYNAM "mptctl"
107
108 MODULE_AUTHOR(MODULEAUTHOR);
109 MODULE_DESCRIPTION(my_NAME);
110 MODULE_LICENSE("GPL");
111
112 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
113
114 static int mptctl_id = -1;
115
116 static DECLARE_WAIT_QUEUE_HEAD ( mptctl_wait );
117
118 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
119
120 struct buflist {
121 u8 *kptr;
122 int len;
123 };
124
125 /*
126 * Function prototypes. Called from OS entry point mptctl_ioctl.
127 * arg contents specific to function.
128 */
129 static int mptctl_fw_download(unsigned long arg);
130 static int mptctl_getiocinfo (unsigned long arg, unsigned int cmd);
131 static int mptctl_gettargetinfo (unsigned long arg);
132 static int mptctl_readtest (unsigned long arg);
133 static int mptctl_mpt_command (unsigned long arg);
134 static int mptctl_eventquery (unsigned long arg);
135 static int mptctl_eventenable (unsigned long arg);
136 static int mptctl_eventreport (unsigned long arg);
137 static int mptctl_replace_fw (unsigned long arg);
138
139 static int mptctl_do_reset(unsigned long arg);
140 static int mptctl_hp_hostinfo(unsigned long arg, unsigned int cmd);
141 static int mptctl_hp_targetinfo(unsigned long arg);
142
143 static int mptctl_probe(struct pci_dev *, const struct pci_device_id *);
144 static void mptctl_remove(struct pci_dev *);
145
146 #ifdef CONFIG_COMPAT
147 static long compat_mpctl_ioctl(struct file *f, unsigned cmd, unsigned long arg);
148 #endif
149 /*
150 * Private function calls.
151 */
152 static int mptctl_do_mpt_command (struct mpt_ioctl_command karg, void __user *mfPtr);
153 static int mptctl_do_fw_download(int ioc, char __user *ufwbuf, size_t fwlen);
154 static MptSge_t *kbuf_alloc_2_sgl( int bytes, u32 dir, int sge_offset, int *frags,
155 struct buflist **blp, dma_addr_t *sglbuf_dma, MPT_ADAPTER *ioc);
156 static void kfree_sgl( MptSge_t *sgl, dma_addr_t sgl_dma,
157 struct buflist *buflist, MPT_ADAPTER *ioc);
158 static void mptctl_timeout_expired (MPT_IOCTL *ioctl);
159 static int mptctl_bus_reset(MPT_IOCTL *ioctl);
160 static int mptctl_set_tm_flags(MPT_SCSI_HOST *hd);
161 static void mptctl_free_tm_flags(MPT_ADAPTER *ioc);
162
163 /*
164 * Reset Handler cleanup function
165 */
166 static int mptctl_ioc_reset(MPT_ADAPTER *ioc, int reset_phase);
167
168 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
169 /*
170 * Scatter gather list (SGL) sizes and limits...
171 */
172 //#define MAX_SCSI_FRAGS 9
173 #define MAX_FRAGS_SPILL1 9
174 #define MAX_FRAGS_SPILL2 15
175 #define FRAGS_PER_BUCKET (MAX_FRAGS_SPILL2 + 1)
176
177 //#define MAX_CHAIN_FRAGS 64
178 //#define MAX_CHAIN_FRAGS (15+15+15+16)
179 #define MAX_CHAIN_FRAGS (4 * MAX_FRAGS_SPILL2 + 1)
180
181 // Define max sg LIST bytes ( == (#frags + #chains) * 8 bytes each)
182 // Works out to: 592d bytes! (9+1)*8 + 4*(15+1)*8
183 // ^----------------- 80 + 512
184 #define MAX_SGL_BYTES ((MAX_FRAGS_SPILL1 + 1 + (4 * FRAGS_PER_BUCKET)) * 8)
185
186 /* linux only seems to ever give 128kB MAX contiguous (GFP_USER) mem bytes */
187 #define MAX_KMALLOC_SZ (128*1024)
188
189 #define MPT_IOCTL_DEFAULT_TIMEOUT 10 /* Default timeout value (seconds) */
190
191 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
192 /**
193 * mptctl_syscall_down - Down the MPT adapter syscall semaphore.
194 * @ioc: Pointer to MPT adapter
195 * @nonblock: boolean, non-zero if O_NONBLOCK is set
196 *
197 * All of the ioctl commands can potentially sleep, which is illegal
198 * with a spinlock held, thus we perform mutual exclusion here.
199 *
200 * Returns negative errno on error, or zero for success.
201 */
202 static inline int
203 mptctl_syscall_down(MPT_ADAPTER *ioc, int nonblock)
204 {
205 int rc = 0;
206 dctlprintk((KERN_INFO MYNAM "::mptctl_syscall_down(%p,%d) called\n", ioc, nonblock));
207
208 if (nonblock) {
209 if (down_trylock(&ioc->ioctl->sem_ioc))
210 rc = -EAGAIN;
211 } else {
212 if (down_interruptible(&ioc->ioctl->sem_ioc))
213 rc = -ERESTARTSYS;
214 }
215 dctlprintk((KERN_INFO MYNAM "::mptctl_syscall_down return %d\n", rc));
216 return rc;
217 }
218
219 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
220 /*
221 * This is the callback for any message we have posted. The message itself
222 * will be returned to the message pool when we return from the IRQ
223 *
224 * This runs in irq context so be short and sweet.
225 */
226 static int
227 mptctl_reply(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req, MPT_FRAME_HDR *reply)
228 {
229 char *sense_data;
230 int sz, req_index;
231 u16 iocStatus;
232 u8 cmd;
233
234 dctlprintk(("mptctl_reply()!\n"));
235 if (req)
236 cmd = req->u.hdr.Function;
237 else
238 return 1;
239
240 if (ioc->ioctl) {
241
242 if (reply==NULL) {
243
244 dctlprintk(("mptctl_reply() NULL Reply "
245 "Function=%x!\n", cmd));
246
247 ioc->ioctl->status |= MPT_IOCTL_STATUS_COMMAND_GOOD;
248 ioc->ioctl->reset &= ~MPTCTL_RESET_OK;
249
250 /* We are done, issue wake up
251 */
252 ioc->ioctl->wait_done = 1;
253 wake_up (&mptctl_wait);
254 return 1;
255
256 }
257
258 dctlprintk(("mptctl_reply() with req=%p "
259 "reply=%p Function=%x!\n", req, reply, cmd));
260
261 /* Copy the reply frame (which much exist
262 * for non-SCSI I/O) to the IOC structure.
263 */
264 dctlprintk(("Copying Reply Frame @%p to ioc%d!\n",
265 reply, ioc->id));
266 memcpy(ioc->ioctl->ReplyFrame, reply,
267 min(ioc->reply_sz, 4*reply->u.reply.MsgLength));
268 ioc->ioctl->status |= MPT_IOCTL_STATUS_RF_VALID;
269
270 /* Set the command status to GOOD if IOC Status is GOOD
271 * OR if SCSI I/O cmd and data underrun or recovered error.
272 */
273 iocStatus = reply->u.reply.IOCStatus & MPI_IOCSTATUS_MASK;
274 if (iocStatus == MPI_IOCSTATUS_SUCCESS)
275 ioc->ioctl->status |= MPT_IOCTL_STATUS_COMMAND_GOOD;
276
277 if ((cmd == MPI_FUNCTION_SCSI_IO_REQUEST) ||
278 (cmd == MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) {
279 ioc->ioctl->reset &= ~MPTCTL_RESET_OK;
280
281 if ((iocStatus == MPI_IOCSTATUS_SCSI_DATA_UNDERRUN) ||
282 (iocStatus == MPI_IOCSTATUS_SCSI_RECOVERED_ERROR)) {
283 ioc->ioctl->status |= MPT_IOCTL_STATUS_COMMAND_GOOD;
284 }
285 }
286
287 /* Copy the sense data - if present
288 */
289 if ((cmd == MPI_FUNCTION_SCSI_IO_REQUEST) &&
290 (reply->u.sreply.SCSIState &
291 MPI_SCSI_STATE_AUTOSENSE_VALID)){
292 sz = req->u.scsireq.SenseBufferLength;
293 req_index =
294 le16_to_cpu(req->u.frame.hwhdr.msgctxu.fld.req_idx);
295 sense_data =
296 ((u8 *)ioc->sense_buf_pool +
297 (req_index * MPT_SENSE_BUFFER_ALLOC));
298 memcpy(ioc->ioctl->sense, sense_data, sz);
299 ioc->ioctl->status |= MPT_IOCTL_STATUS_SENSE_VALID;
300 }
301
302 if (cmd == MPI_FUNCTION_SCSI_TASK_MGMT)
303 mptctl_free_tm_flags(ioc);
304
305 /* We are done, issue wake up
306 */
307 ioc->ioctl->wait_done = 1;
308 wake_up (&mptctl_wait);
309 }
310 return 1;
311 }
312
313 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
314 /* mptctl_timeout_expired
315 *
316 * Expecting an interrupt, however timed out.
317 *
318 */
319 static void mptctl_timeout_expired (MPT_IOCTL *ioctl)
320 {
321 int rc = 1;
322
323 dctlprintk((KERN_NOTICE MYNAM ": Timeout Expired! Host %d\n",
324 ioctl->ioc->id));
325 if (ioctl == NULL)
326 return;
327
328 ioctl->wait_done = 0;
329 if (ioctl->reset & MPTCTL_RESET_OK)
330 rc = mptctl_bus_reset(ioctl);
331
332 if (rc) {
333 /* Issue a reset for this device.
334 * The IOC is not responding.
335 */
336 dctlprintk((MYIOC_s_INFO_FMT "Calling HardReset! \n",
337 ioctl->ioc->name));
338 mpt_HardResetHandler(ioctl->ioc, NO_SLEEP);
339 }
340 return;
341
342 }
343
344 /* mptctl_bus_reset
345 *
346 * Bus reset code.
347 *
348 */
349 static int mptctl_bus_reset(MPT_IOCTL *ioctl)
350 {
351 MPT_FRAME_HDR *mf;
352 SCSITaskMgmt_t *pScsiTm;
353 MPT_SCSI_HOST *hd;
354 int ii;
355 int retval;
356
357
358 ioctl->reset &= ~MPTCTL_RESET_OK;
359
360 if (ioctl->ioc->sh == NULL)
361 return -EPERM;
362
363 hd = (MPT_SCSI_HOST *) ioctl->ioc->sh->hostdata;
364 if (hd == NULL)
365 return -EPERM;
366
367 /* Single threading ....
368 */
369 if (mptctl_set_tm_flags(hd) != 0)
370 return -EPERM;
371
372 /* Send request
373 */
374 if ((mf = mpt_get_msg_frame(mptctl_id, ioctl->ioc)) == NULL) {
375 dctlprintk((MYIOC_s_WARN_FMT "IssueTaskMgmt, no msg frames!!\n",
376 ioctl->ioc->name));
377
378 mptctl_free_tm_flags(ioctl->ioc);
379 return -ENOMEM;
380 }
381
382 dtmprintk((MYIOC_s_INFO_FMT "IssueTaskMgmt request @ %p\n",
383 ioctl->ioc->name, mf));
384
385 pScsiTm = (SCSITaskMgmt_t *) mf;
386 pScsiTm->TargetID = ioctl->target;
387 pScsiTm->Bus = hd->port; /* 0 */
388 pScsiTm->ChainOffset = 0;
389 pScsiTm->Function = MPI_FUNCTION_SCSI_TASK_MGMT;
390 pScsiTm->Reserved = 0;
391 pScsiTm->TaskType = MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS;
392 pScsiTm->Reserved1 = 0;
393 pScsiTm->MsgFlags = MPI_SCSITASKMGMT_MSGFLAGS_LIPRESET_RESET_OPTION;
394
395 for (ii= 0; ii < 8; ii++)
396 pScsiTm->LUN[ii] = 0;
397
398 for (ii=0; ii < 7; ii++)
399 pScsiTm->Reserved2[ii] = 0;
400
401 pScsiTm->TaskMsgContext = 0;
402 dtmprintk((MYIOC_s_INFO_FMT
403 "mptctl_bus_reset: issued.\n", ioctl->ioc->name));
404
405 DBG_DUMP_TM_REQUEST_FRAME((u32 *)mf);
406
407 ioctl->wait_done=0;
408 if ((retval = mpt_send_handshake_request(mptctl_id, ioctl->ioc,
409 sizeof(SCSITaskMgmt_t), (u32*)pScsiTm, CAN_SLEEP)) != 0) {
410 dfailprintk((MYIOC_s_ERR_FMT "_send_handshake FAILED!"
411 " (hd %p, ioc %p, mf %p) \n", hd->ioc->name, hd,
412 hd->ioc, mf));
413 goto mptctl_bus_reset_done;
414 }
415
416 /* Now wait for the command to complete */
417 ii = wait_event_interruptible_timeout(mptctl_wait,
418 ioctl->wait_done == 1,
419 HZ*5 /* 5 second timeout */);
420
421 if(ii <=0 && (ioctl->wait_done != 1 )) {
422 ioctl->wait_done = 0;
423 retval = -1; /* return failure */
424 }
425
426 mptctl_bus_reset_done:
427
428 mpt_free_msg_frame(hd->ioc, mf);
429 mptctl_free_tm_flags(ioctl->ioc);
430 return retval;
431 }
432
433 static int
434 mptctl_set_tm_flags(MPT_SCSI_HOST *hd) {
435 unsigned long flags;
436
437 spin_lock_irqsave(&hd->ioc->FreeQlock, flags);
438
439 if (hd->tmState == TM_STATE_NONE) {
440 hd->tmState = TM_STATE_IN_PROGRESS;
441 hd->tmPending = 1;
442 spin_unlock_irqrestore(&hd->ioc->FreeQlock, flags);
443 } else {
444 spin_unlock_irqrestore(&hd->ioc->FreeQlock, flags);
445 return -EBUSY;
446 }
447
448 return 0;
449 }
450
451 static void
452 mptctl_free_tm_flags(MPT_ADAPTER *ioc)
453 {
454 MPT_SCSI_HOST * hd;
455 unsigned long flags;
456
457 hd = (MPT_SCSI_HOST *) ioc->sh->hostdata;
458 if (hd == NULL)
459 return;
460
461 spin_lock_irqsave(&ioc->FreeQlock, flags);
462
463 hd->tmState = TM_STATE_NONE;
464 hd->tmPending = 0;
465 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
466
467 return;
468 }
469
470 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
471 /* mptctl_ioc_reset
472 *
473 * Clean-up functionality. Used only if there has been a
474 * reload of the FW due.
475 *
476 */
477 static int
478 mptctl_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
479 {
480 MPT_IOCTL *ioctl = ioc->ioctl;
481 dctlprintk((KERN_INFO MYNAM ": IOC %s_reset routed to IOCTL driver!\n",
482 reset_phase==MPT_IOC_SETUP_RESET ? "setup" : (
483 reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post")));
484
485 if(ioctl == NULL)
486 return 1;
487
488 switch(reset_phase) {
489 case MPT_IOC_SETUP_RESET:
490 ioctl->status |= MPT_IOCTL_STATUS_DID_IOCRESET;
491 break;
492 case MPT_IOC_POST_RESET:
493 ioctl->status &= ~MPT_IOCTL_STATUS_DID_IOCRESET;
494 break;
495 case MPT_IOC_PRE_RESET:
496 default:
497 break;
498 }
499
500 return 1;
501 }
502
503 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
504 /*
505 * MPT ioctl handler
506 * cmd - specify the particular IOCTL command to be issued
507 * arg - data specific to the command. Must not be null.
508 */
509 static long
510 __mptctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
511 {
512 mpt_ioctl_header __user *uhdr = (void __user *) arg;
513 mpt_ioctl_header khdr;
514 int iocnum;
515 unsigned iocnumX;
516 int nonblock = (file->f_flags & O_NONBLOCK);
517 int ret;
518 MPT_ADAPTER *iocp = NULL;
519
520 dctlprintk(("mptctl_ioctl() called\n"));
521
522 if (copy_from_user(&khdr, uhdr, sizeof(khdr))) {
523 printk(KERN_ERR "%s::mptctl_ioctl() @%d - "
524 "Unable to copy mpt_ioctl_header data @ %p\n",
525 __FILE__, __LINE__, uhdr);
526 return -EFAULT;
527 }
528 ret = -ENXIO; /* (-6) No such device or address */
529
530 /* Verify intended MPT adapter - set iocnum and the adapter
531 * pointer (iocp)
532 */
533 iocnumX = khdr.iocnum & 0xFF;
534 if (((iocnum = mpt_verify_adapter(iocnumX, &iocp)) < 0) ||
535 (iocp == NULL)) {
536 dctlprintk((KERN_ERR "%s::mptctl_ioctl() @%d - ioc%d not found!\n",
537 __FILE__, __LINE__, iocnumX));
538 return -ENODEV;
539 }
540
541 if (!iocp->active) {
542 printk(KERN_ERR "%s::mptctl_ioctl() @%d - Controller disabled.\n",
543 __FILE__, __LINE__);
544 return -EFAULT;
545 }
546
547 /* Handle those commands that are just returning
548 * information stored in the driver.
549 * These commands should never time out and are unaffected
550 * by TM and FW reloads.
551 */
552 if ((cmd & ~IOCSIZE_MASK) == (MPTIOCINFO & ~IOCSIZE_MASK)) {
553 return mptctl_getiocinfo(arg, _IOC_SIZE(cmd));
554 } else if (cmd == MPTTARGETINFO) {
555 return mptctl_gettargetinfo(arg);
556 } else if (cmd == MPTTEST) {
557 return mptctl_readtest(arg);
558 } else if (cmd == MPTEVENTQUERY) {
559 return mptctl_eventquery(arg);
560 } else if (cmd == MPTEVENTENABLE) {
561 return mptctl_eventenable(arg);
562 } else if (cmd == MPTEVENTREPORT) {
563 return mptctl_eventreport(arg);
564 } else if (cmd == MPTFWREPLACE) {
565 return mptctl_replace_fw(arg);
566 }
567
568 /* All of these commands require an interrupt or
569 * are unknown/illegal.
570 */
571 if ((ret = mptctl_syscall_down(iocp, nonblock)) != 0)
572 return ret;
573
574 dctlprintk((MYIOC_s_INFO_FMT ": mptctl_ioctl()\n", iocp->name));
575
576 if (cmd == MPTFWDOWNLOAD)
577 ret = mptctl_fw_download(arg);
578 else if (cmd == MPTCOMMAND)
579 ret = mptctl_mpt_command(arg);
580 else if (cmd == MPTHARDRESET)
581 ret = mptctl_do_reset(arg);
582 else if ((cmd & ~IOCSIZE_MASK) == (HP_GETHOSTINFO & ~IOCSIZE_MASK))
583 ret = mptctl_hp_hostinfo(arg, _IOC_SIZE(cmd));
584 else if (cmd == HP_GETTARGETINFO)
585 ret = mptctl_hp_targetinfo(arg);
586 else
587 ret = -EINVAL;
588
589 up(&iocp->ioctl->sem_ioc);
590
591 return ret;
592 }
593
594 static long
595 mptctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
596 {
597 long ret;
598 lock_kernel();
599 ret = __mptctl_ioctl(file, cmd, arg);
600 unlock_kernel();
601 return ret;
602 }
603
604 static int mptctl_do_reset(unsigned long arg)
605 {
606 struct mpt_ioctl_diag_reset __user *urinfo = (void __user *) arg;
607 struct mpt_ioctl_diag_reset krinfo;
608 MPT_ADAPTER *iocp;
609
610 dctlprintk((KERN_INFO "mptctl_do_reset called.\n"));
611
612 if (copy_from_user(&krinfo, urinfo, sizeof(struct mpt_ioctl_diag_reset))) {
613 printk(KERN_ERR "%s@%d::mptctl_do_reset - "
614 "Unable to copy mpt_ioctl_diag_reset struct @ %p\n",
615 __FILE__, __LINE__, urinfo);
616 return -EFAULT;
617 }
618
619 if (mpt_verify_adapter(krinfo.hdr.iocnum, &iocp) < 0) {
620 dctlprintk((KERN_ERR "%s@%d::mptctl_do_reset - ioc%d not found!\n",
621 __FILE__, __LINE__, krinfo.hdr.iocnum));
622 return -ENODEV; /* (-6) No such device or address */
623 }
624
625 if (mpt_HardResetHandler(iocp, CAN_SLEEP) != 0) {
626 printk (KERN_ERR "%s@%d::mptctl_do_reset - reset failed.\n",
627 __FILE__, __LINE__);
628 return -1;
629 }
630
631 return 0;
632 }
633
634 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
635 /*
636 * MPT FW download function. Cast the arg into the mpt_fw_xfer structure.
637 * This structure contains: iocnum, firmware length (bytes),
638 * pointer to user space memory where the fw image is stored.
639 *
640 * Outputs: None.
641 * Return: 0 if successful
642 * -EFAULT if data unavailable
643 * -ENXIO if no such device
644 * -EAGAIN if resource problem
645 * -ENOMEM if no memory for SGE
646 * -EMLINK if too many chain buffers required
647 * -EBADRQC if adapter does not support FW download
648 * -EBUSY if adapter is busy
649 * -ENOMSG if FW upload returned bad status
650 */
651 static int
652 mptctl_fw_download(unsigned long arg)
653 {
654 struct mpt_fw_xfer __user *ufwdl = (void __user *) arg;
655 struct mpt_fw_xfer kfwdl;
656
657 dctlprintk((KERN_INFO "mptctl_fwdl called. mptctl_id = %xh\n", mptctl_id)); //tc
658 if (copy_from_user(&kfwdl, ufwdl, sizeof(struct mpt_fw_xfer))) {
659 printk(KERN_ERR "%s@%d::_ioctl_fwdl - "
660 "Unable to copy mpt_fw_xfer struct @ %p\n",
661 __FILE__, __LINE__, ufwdl);
662 return -EFAULT;
663 }
664
665 return mptctl_do_fw_download(kfwdl.iocnum, kfwdl.bufp, kfwdl.fwlen);
666 }
667
668 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
669 /*
670 * FW Download engine.
671 * Outputs: None.
672 * Return: 0 if successful
673 * -EFAULT if data unavailable
674 * -ENXIO if no such device
675 * -EAGAIN if resource problem
676 * -ENOMEM if no memory for SGE
677 * -EMLINK if too many chain buffers required
678 * -EBADRQC if adapter does not support FW download
679 * -EBUSY if adapter is busy
680 * -ENOMSG if FW upload returned bad status
681 */
682 static int
683 mptctl_do_fw_download(int ioc, char __user *ufwbuf, size_t fwlen)
684 {
685 FWDownload_t *dlmsg;
686 MPT_FRAME_HDR *mf;
687 MPT_ADAPTER *iocp;
688 FWDownloadTCSGE_t *ptsge;
689 MptSge_t *sgl, *sgIn;
690 char *sgOut;
691 struct buflist *buflist;
692 struct buflist *bl;
693 dma_addr_t sgl_dma;
694 int ret;
695 int numfrags = 0;
696 int maxfrags;
697 int n = 0;
698 u32 sgdir;
699 u32 nib;
700 int fw_bytes_copied = 0;
701 int i;
702 int sge_offset = 0;
703 u16 iocstat;
704 pFWDownloadReply_t ReplyMsg = NULL;
705
706 dctlprintk((KERN_INFO "mptctl_do_fwdl called. mptctl_id = %xh.\n", mptctl_id));
707
708 dctlprintk((KERN_INFO "DbG: kfwdl.bufp = %p\n", ufwbuf));
709 dctlprintk((KERN_INFO "DbG: kfwdl.fwlen = %d\n", (int)fwlen));
710 dctlprintk((KERN_INFO "DbG: kfwdl.ioc = %04xh\n", ioc));
711
712 if ((ioc = mpt_verify_adapter(ioc, &iocp)) < 0) {
713 dctlprintk(("%s@%d::_ioctl_fwdl - ioc%d not found!\n",
714 __FILE__, __LINE__, ioc));
715 return -ENODEV; /* (-6) No such device or address */
716 }
717
718 /* Valid device. Get a message frame and construct the FW download message.
719 */
720 if ((mf = mpt_get_msg_frame(mptctl_id, iocp)) == NULL)
721 return -EAGAIN;
722 dlmsg = (FWDownload_t*) mf;
723 ptsge = (FWDownloadTCSGE_t *) &dlmsg->SGL;
724 sgOut = (char *) (ptsge + 1);
725
726 /*
727 * Construct f/w download request
728 */
729 dlmsg->ImageType = MPI_FW_DOWNLOAD_ITYPE_FW;
730 dlmsg->Reserved = 0;
731 dlmsg->ChainOffset = 0;
732 dlmsg->Function = MPI_FUNCTION_FW_DOWNLOAD;
733 dlmsg->Reserved1[0] = dlmsg->Reserved1[1] = dlmsg->Reserved1[2] = 0;
734 dlmsg->MsgFlags = 0;
735
736 /* Set up the Transaction SGE.
737 */
738 ptsge->Reserved = 0;
739 ptsge->ContextSize = 0;
740 ptsge->DetailsLength = 12;
741 ptsge->Flags = MPI_SGE_FLAGS_TRANSACTION_ELEMENT;
742 ptsge->Reserved_0100_Checksum = 0;
743 ptsge->ImageOffset = 0;
744 ptsge->ImageSize = cpu_to_le32(fwlen);
745
746 /* Add the SGL
747 */
748
749 /*
750 * Need to kmalloc area(s) for holding firmware image bytes.
751 * But we need to do it piece meal, using a proper
752 * scatter gather list (with 128kB MAX hunks).
753 *
754 * A practical limit here might be # of sg hunks that fit into
755 * a single IOC request frame; 12 or 8 (see below), so:
756 * For FC9xx: 12 x 128kB == 1.5 mB (max)
757 * For C1030: 8 x 128kB == 1 mB (max)
758 * We could support chaining, but things get ugly(ier:)
759 *
760 * Set the sge_offset to the start of the sgl (bytes).
761 */
762 sgdir = 0x04000000; /* IOC will READ from sys mem */
763 sge_offset = sizeof(MPIHeader_t) + sizeof(FWDownloadTCSGE_t);
764 if ((sgl = kbuf_alloc_2_sgl(fwlen, sgdir, sge_offset,
765 &numfrags, &buflist, &sgl_dma, iocp)) == NULL)
766 return -ENOMEM;
767
768 /*
769 * We should only need SGL with 2 simple_32bit entries (up to 256 kB)
770 * for FC9xx f/w image, but calculate max number of sge hunks
771 * we can fit into a request frame, and limit ourselves to that.
772 * (currently no chain support)
773 * maxfrags = (Request Size - FWdownload Size ) / Size of 32 bit SGE
774 * Request maxfrags
775 * 128 12
776 * 96 8
777 * 64 4
778 */
779 maxfrags = (iocp->req_sz - sizeof(MPIHeader_t) - sizeof(FWDownloadTCSGE_t))
780 / (sizeof(dma_addr_t) + sizeof(u32));
781 if (numfrags > maxfrags) {
782 ret = -EMLINK;
783 goto fwdl_out;
784 }
785
786 dctlprintk((KERN_INFO "DbG: sgl buffer = %p, sgfrags = %d\n", sgl, numfrags));
787
788 /*
789 * Parse SG list, copying sgl itself,
790 * plus f/w image hunks from user space as we go...
791 */
792 ret = -EFAULT;
793 sgIn = sgl;
794 bl = buflist;
795 for (i=0; i < numfrags; i++) {
796
797 /* Get the SGE type: 0 - TCSGE, 3 - Chain, 1 - Simple SGE
798 * Skip everything but Simple. If simple, copy from
799 * user space into kernel space.
800 * Note: we should not have anything but Simple as
801 * Chain SGE are illegal.
802 */
803 nib = (sgIn->FlagsLength & 0x30000000) >> 28;
804 if (nib == 0 || nib == 3) {
805 ;
806 } else if (sgIn->Address) {
807 mpt_add_sge(sgOut, sgIn->FlagsLength, sgIn->Address);
808 n++;
809 if (copy_from_user(bl->kptr, ufwbuf+fw_bytes_copied, bl->len)) {
810 printk(KERN_ERR "%s@%d::_ioctl_fwdl - "
811 "Unable to copy f/w buffer hunk#%d @ %p\n",
812 __FILE__, __LINE__, n, ufwbuf);
813 goto fwdl_out;
814 }
815 fw_bytes_copied += bl->len;
816 }
817 sgIn++;
818 bl++;
819 sgOut += (sizeof(dma_addr_t) + sizeof(u32));
820 }
821
822 #ifdef MPT_DEBUG
823 {
824 u32 *m = (u32 *)mf;
825 printk(KERN_INFO MYNAM ": F/W download request:\n" KERN_INFO " ");
826 for (i=0; i < 7+numfrags*2; i++)
827 printk(" %08x", le32_to_cpu(m[i]));
828 printk("\n");
829 }
830 #endif
831
832 /*
833 * Finally, perform firmware download.
834 */
835 iocp->ioctl->wait_done = 0;
836 mpt_put_msg_frame(mptctl_id, iocp, mf);
837
838 /* Now wait for the command to complete */
839 ret = wait_event_interruptible_timeout(mptctl_wait,
840 iocp->ioctl->wait_done == 1,
841 HZ*60);
842
843 if(ret <=0 && (iocp->ioctl->wait_done != 1 )) {
844 /* Now we need to reset the board */
845 mptctl_timeout_expired(iocp->ioctl);
846 ret = -ENODATA;
847 goto fwdl_out;
848 }
849
850 if (sgl)
851 kfree_sgl(sgl, sgl_dma, buflist, iocp);
852
853 ReplyMsg = (pFWDownloadReply_t)iocp->ioctl->ReplyFrame;
854 iocstat = le16_to_cpu(ReplyMsg->IOCStatus) & MPI_IOCSTATUS_MASK;
855 if (iocstat == MPI_IOCSTATUS_SUCCESS) {
856 printk(KERN_INFO MYNAM ": F/W update successfully sent to %s!\n", iocp->name);
857 return 0;
858 } else if (iocstat == MPI_IOCSTATUS_INVALID_FUNCTION) {
859 printk(KERN_WARNING MYNAM ": ?Hmmm... %s says it doesn't support F/W download!?!\n",
860 iocp->name);
861 printk(KERN_WARNING MYNAM ": (time to go bang on somebodies door)\n");
862 return -EBADRQC;
863 } else if (iocstat == MPI_IOCSTATUS_BUSY) {
864 printk(KERN_WARNING MYNAM ": Warning! %s says: IOC_BUSY!\n", iocp->name);
865 printk(KERN_WARNING MYNAM ": (try again later?)\n");
866 return -EBUSY;
867 } else {
868 printk(KERN_WARNING MYNAM "::ioctl_fwdl() ERROR! %s returned [bad] status = %04xh\n",
869 iocp->name, iocstat);
870 printk(KERN_WARNING MYNAM ": (bad VooDoo)\n");
871 return -ENOMSG;
872 }
873 return 0;
874
875 fwdl_out:
876 kfree_sgl(sgl, sgl_dma, buflist, iocp);
877 return ret;
878 }
879
880 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
881 /*
882 * SGE Allocation routine
883 *
884 * Inputs: bytes - number of bytes to be transferred
885 * sgdir - data direction
886 * sge_offset - offset (in bytes) from the start of the request
887 * frame to the first SGE
888 * ioc - pointer to the mptadapter
889 * Outputs: frags - number of scatter gather elements
890 * blp - point to the buflist pointer
891 * sglbuf_dma - pointer to the (dma) sgl
892 * Returns: Null if failes
893 * pointer to the (virtual) sgl if successful.
894 */
895 static MptSge_t *
896 kbuf_alloc_2_sgl(int bytes, u32 sgdir, int sge_offset, int *frags,
897 struct buflist **blp, dma_addr_t *sglbuf_dma, MPT_ADAPTER *ioc)
898 {
899 MptSge_t *sglbuf = NULL; /* pointer to array of SGE */
900 /* and chain buffers */
901 struct buflist *buflist = NULL; /* kernel routine */
902 MptSge_t *sgl;
903 int numfrags = 0;
904 int fragcnt = 0;
905 int alloc_sz = min(bytes,MAX_KMALLOC_SZ); // avoid kernel warning msg!
906 int bytes_allocd = 0;
907 int this_alloc;
908 dma_addr_t pa; // phys addr
909 int i, buflist_ent;
910 int sg_spill = MAX_FRAGS_SPILL1;
911 int dir;
912 /* initialization */
913 *frags = 0;
914 *blp = NULL;
915
916 /* Allocate and initialize an array of kernel
917 * structures for the SG elements.
918 */
919 i = MAX_SGL_BYTES / 8;
920 buflist = kmalloc(i, GFP_USER);
921 if (buflist == NULL)
922 return NULL;
923 memset(buflist, 0, i);
924 buflist_ent = 0;
925
926 /* Allocate a single block of memory to store the sg elements and
927 * the chain buffers. The calling routine is responsible for
928 * copying the data in this array into the correct place in the
929 * request and chain buffers.
930 */
931 sglbuf = pci_alloc_consistent(ioc->pcidev, MAX_SGL_BYTES, sglbuf_dma);
932 if (sglbuf == NULL)
933 goto free_and_fail;
934
935 if (sgdir & 0x04000000)
936 dir = PCI_DMA_TODEVICE;
937 else
938 dir = PCI_DMA_FROMDEVICE;
939
940 /* At start:
941 * sgl = sglbuf = point to beginning of sg buffer
942 * buflist_ent = 0 = first kernel structure
943 * sg_spill = number of SGE that can be written before the first
944 * chain element.
945 *
946 */
947 sgl = sglbuf;
948 sg_spill = ((ioc->req_sz - sge_offset)/(sizeof(dma_addr_t) + sizeof(u32))) - 1;
949 while (bytes_allocd < bytes) {
950 this_alloc = min(alloc_sz, bytes-bytes_allocd);
951 buflist[buflist_ent].len = this_alloc;
952 buflist[buflist_ent].kptr = pci_alloc_consistent(ioc->pcidev,
953 this_alloc,
954 &pa);
955 if (buflist[buflist_ent].kptr == NULL) {
956 alloc_sz = alloc_sz / 2;
957 if (alloc_sz == 0) {
958 printk(KERN_WARNING MYNAM "-SG: No can do - "
959 "not enough memory! :-(\n");
960 printk(KERN_WARNING MYNAM "-SG: (freeing %d frags)\n",
961 numfrags);
962 goto free_and_fail;
963 }
964 continue;
965 } else {
966 dma_addr_t dma_addr;
967
968 bytes_allocd += this_alloc;
969 sgl->FlagsLength = (0x10000000|MPT_SGE_FLAGS_ADDRESSING|sgdir|this_alloc);
970 dma_addr = pci_map_single(ioc->pcidev, buflist[buflist_ent].kptr, this_alloc, dir);
971 sgl->Address = dma_addr;
972
973 fragcnt++;
974 numfrags++;
975 sgl++;
976 buflist_ent++;
977 }
978
979 if (bytes_allocd >= bytes)
980 break;
981
982 /* Need to chain? */
983 if (fragcnt == sg_spill) {
984 printk(KERN_WARNING MYNAM "-SG: No can do - " "Chain required! :-(\n");
985 printk(KERN_WARNING MYNAM "(freeing %d frags)\n", numfrags);
986 goto free_and_fail;
987 }
988
989 /* overflow check... */
990 if (numfrags*8 > MAX_SGL_BYTES){
991 /* GRRRRR... */
992 printk(KERN_WARNING MYNAM "-SG: No can do - "
993 "too many SG frags! :-(\n");
994 printk(KERN_WARNING MYNAM "-SG: (freeing %d frags)\n",
995 numfrags);
996 goto free_and_fail;
997 }
998 }
999
1000 /* Last sge fixup: set LE+eol+eob bits */
1001 sgl[-1].FlagsLength |= 0xC1000000;
1002
1003 *frags = numfrags;
1004 *blp = buflist;
1005
1006 dctlprintk((KERN_INFO MYNAM "-SG: kbuf_alloc_2_sgl() - "
1007 "%d SG frags generated!\n",
1008 numfrags));
1009
1010 dctlprintk((KERN_INFO MYNAM "-SG: kbuf_alloc_2_sgl() - "
1011 "last (big) alloc_sz=%d\n",
1012 alloc_sz));
1013
1014 return sglbuf;
1015
1016 free_and_fail:
1017 if (sglbuf != NULL) {
1018 int i;
1019
1020 for (i = 0; i < numfrags; i++) {
1021 dma_addr_t dma_addr;
1022 u8 *kptr;
1023 int len;
1024
1025 if ((sglbuf[i].FlagsLength >> 24) == 0x30)
1026 continue;
1027
1028 dma_addr = sglbuf[i].Address;
1029 kptr = buflist[i].kptr;
1030 len = buflist[i].len;
1031
1032 pci_free_consistent(ioc->pcidev, len, kptr, dma_addr);
1033 }
1034 pci_free_consistent(ioc->pcidev, MAX_SGL_BYTES, sglbuf, *sglbuf_dma);
1035 }
1036 kfree(buflist);
1037 return NULL;
1038 }
1039
1040 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1041 /*
1042 * Routine to free the SGL elements.
1043 */
1044 static void
1045 kfree_sgl(MptSge_t *sgl, dma_addr_t sgl_dma, struct buflist *buflist, MPT_ADAPTER *ioc)
1046 {
1047 MptSge_t *sg = sgl;
1048 struct buflist *bl = buflist;
1049 u32 nib;
1050 int dir;
1051 int n = 0;
1052
1053 if (sg->FlagsLength & 0x04000000)
1054 dir = PCI_DMA_TODEVICE;
1055 else
1056 dir = PCI_DMA_FROMDEVICE;
1057
1058 nib = (sg->FlagsLength & 0xF0000000) >> 28;
1059 while (! (nib & 0x4)) { /* eob */
1060 /* skip ignore/chain. */
1061 if (nib == 0 || nib == 3) {
1062 ;
1063 } else if (sg->Address) {
1064 dma_addr_t dma_addr;
1065 void *kptr;
1066 int len;
1067
1068 dma_addr = sg->Address;
1069 kptr = bl->kptr;
1070 len = bl->len;
1071 pci_unmap_single(ioc->pcidev, dma_addr, len, dir);
1072 pci_free_consistent(ioc->pcidev, len, kptr, dma_addr);
1073 n++;
1074 }
1075 sg++;
1076 bl++;
1077 nib = (le32_to_cpu(sg->FlagsLength) & 0xF0000000) >> 28;
1078 }
1079
1080 /* we're at eob! */
1081 if (sg->Address) {
1082 dma_addr_t dma_addr;
1083 void *kptr;
1084 int len;
1085
1086 dma_addr = sg->Address;
1087 kptr = bl->kptr;
1088 len = bl->len;
1089 pci_unmap_single(ioc->pcidev, dma_addr, len, dir);
1090 pci_free_consistent(ioc->pcidev, len, kptr, dma_addr);
1091 n++;
1092 }
1093
1094 pci_free_consistent(ioc->pcidev, MAX_SGL_BYTES, sgl, sgl_dma);
1095 kfree(buflist);
1096 dctlprintk((KERN_INFO MYNAM "-SG: Free'd 1 SGL buf + %d kbufs!\n", n));
1097 }
1098
1099 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1100 /*
1101 * mptctl_getiocinfo - Query the host adapter for IOC information.
1102 * @arg: User space argument
1103 *
1104 * Outputs: None.
1105 * Return: 0 if successful
1106 * -EFAULT if data unavailable
1107 * -ENODEV if no such device/adapter
1108 */
1109 static int
1110 mptctl_getiocinfo (unsigned long arg, unsigned int data_size)
1111 {
1112 struct mpt_ioctl_iocinfo __user *uarg = (void __user *) arg;
1113 struct mpt_ioctl_iocinfo *karg;
1114 MPT_ADAPTER *ioc;
1115 struct pci_dev *pdev;
1116 struct Scsi_Host *sh;
1117 MPT_SCSI_HOST *hd;
1118 int iocnum;
1119 int numDevices = 0;
1120 unsigned int max_id;
1121 int ii;
1122 int port;
1123 int cim_rev;
1124 u8 revision;
1125
1126 dctlprintk((": mptctl_getiocinfo called.\n"));
1127 /* Add of PCI INFO results in unaligned access for
1128 * IA64 and Sparc. Reset long to int. Return no PCI
1129 * data for obsolete format.
1130 */
1131 if (data_size == sizeof(struct mpt_ioctl_iocinfo_rev0))
1132 cim_rev = 0;
1133 else if (data_size == sizeof(struct mpt_ioctl_iocinfo_rev1))
1134 cim_rev = 1;
1135 else if (data_size == sizeof(struct mpt_ioctl_iocinfo))
1136 cim_rev = 2;
1137 else if (data_size == (sizeof(struct mpt_ioctl_iocinfo_rev0)+12))
1138 cim_rev = 0; /* obsolete */
1139 else
1140 return -EFAULT;
1141
1142 karg = kmalloc(data_size, GFP_KERNEL);
1143 if (karg == NULL) {
1144 printk(KERN_ERR "%s::mpt_ioctl_iocinfo() @%d - no memory available!\n",
1145 __FILE__, __LINE__);
1146 return -ENOMEM;
1147 }
1148
1149 if (copy_from_user(karg, uarg, data_size)) {
1150 printk(KERN_ERR "%s@%d::mptctl_getiocinfo - "
1151 "Unable to read in mpt_ioctl_iocinfo struct @ %p\n",
1152 __FILE__, __LINE__, uarg);
1153 kfree(karg);
1154 return -EFAULT;
1155 }
1156
1157 if (((iocnum = mpt_verify_adapter(karg->hdr.iocnum, &ioc)) < 0) ||
1158 (ioc == NULL)) {
1159 dctlprintk((KERN_ERR "%s::mptctl_getiocinfo() @%d - ioc%d not found!\n",
1160 __FILE__, __LINE__, iocnum));
1161 kfree(karg);
1162 return -ENODEV;
1163 }
1164
1165 /* Verify the data transfer size is correct.
1166 * Ignore the port setting.
1167 */
1168 if (karg->hdr.maxDataSize != data_size) {
1169 printk(KERN_ERR "%s@%d::mptctl_getiocinfo - "
1170 "Structure size mismatch. Command not completed.\n",
1171 __FILE__, __LINE__);
1172 kfree(karg);
1173 return -EFAULT;
1174 }
1175
1176 /* Fill in the data and return the structure to the calling
1177 * program
1178 */
1179 if (ioc->bus_type == FC)
1180 karg->adapterType = MPT_IOCTL_INTERFACE_FC;
1181 else
1182 karg->adapterType = MPT_IOCTL_INTERFACE_SCSI;
1183
1184 port = karg->hdr.port;
1185
1186 karg->port = port;
1187 pdev = (struct pci_dev *) ioc->pcidev;
1188
1189 karg->pciId = pdev->device;
1190 pci_read_config_byte(pdev, PCI_CLASS_REVISION, &revision);
1191 karg->hwRev = revision;
1192 karg->subSystemDevice = pdev->subsystem_device;
1193 karg->subSystemVendor = pdev->subsystem_vendor;
1194
1195 if (cim_rev == 1) {
1196 /* Get the PCI bus, device, and function numbers for the IOC
1197 */
1198 karg->pciInfo.u.bits.busNumber = pdev->bus->number;
1199 karg->pciInfo.u.bits.deviceNumber = PCI_SLOT( pdev->devfn );
1200 karg->pciInfo.u.bits.functionNumber = PCI_FUNC( pdev->devfn );
1201 } else if (cim_rev == 2) {
1202 /* Get the PCI bus, device, function and segment ID numbers
1203 for the IOC */
1204 karg->pciInfo.u.bits.busNumber = pdev->bus->number;
1205 karg->pciInfo.u.bits.deviceNumber = PCI_SLOT( pdev->devfn );
1206 karg->pciInfo.u.bits.functionNumber = PCI_FUNC( pdev->devfn );
1207 karg->pciInfo.u.bits.functionNumber = PCI_FUNC( pdev->devfn );
1208 karg->pciInfo.segmentID = pci_domain_nr(pdev->bus);
1209 }
1210
1211 /* Get number of devices
1212 */
1213 if ((sh = ioc->sh) != NULL) {
1214 /* sh->max_id = maximum target ID + 1
1215 */
1216 max_id = sh->max_id - 1;
1217 hd = (MPT_SCSI_HOST *) sh->hostdata;
1218
1219 /* Check all of the target structures and
1220 * keep a counter.
1221 */
1222 if (hd && hd->Targets) {
1223 for (ii = 0; ii <= max_id; ii++) {
1224 if (hd->Targets[ii])
1225 numDevices++;
1226 }
1227 }
1228 }
1229 karg->numDevices = numDevices;
1230
1231 /* Set the BIOS and FW Version
1232 */
1233 karg->FWVersion = ioc->facts.FWVersion.Word;
1234 karg->BIOSVersion = ioc->biosVersion;
1235
1236 /* Set the Version Strings.
1237 */
1238 strncpy (karg->driverVersion, MPT_LINUX_PACKAGE_NAME, MPT_IOCTL_VERSION_LENGTH);
1239 karg->driverVersion[MPT_IOCTL_VERSION_LENGTH-1]='\0';
1240
1241 karg->busChangeEvent = 0;
1242 karg->hostId = ioc->pfacts[port].PortSCSIID;
1243 karg->rsvd[0] = karg->rsvd[1] = 0;
1244
1245 /* Copy the data from kernel memory to user memory
1246 */
1247 if (copy_to_user((char __user *)arg, karg, data_size)) {
1248 printk(KERN_ERR "%s@%d::mptctl_getiocinfo - "
1249 "Unable to write out mpt_ioctl_iocinfo struct @ %p\n",
1250 __FILE__, __LINE__, uarg);
1251 kfree(karg);
1252 return -EFAULT;
1253 }
1254
1255 kfree(karg);
1256 return 0;
1257 }
1258
1259 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1260 /*
1261 * mptctl_gettargetinfo - Query the host adapter for target information.
1262 * @arg: User space argument
1263 *
1264 * Outputs: None.
1265 * Return: 0 if successful
1266 * -EFAULT if data unavailable
1267 * -ENODEV if no such device/adapter
1268 */
1269 static int
1270 mptctl_gettargetinfo (unsigned long arg)
1271 {
1272 struct mpt_ioctl_targetinfo __user *uarg = (void __user *) arg;
1273 struct mpt_ioctl_targetinfo karg;
1274 MPT_ADAPTER *ioc;
1275 struct Scsi_Host *sh;
1276 MPT_SCSI_HOST *hd;
1277 VirtDevice *vdev;
1278 char *pmem;
1279 int *pdata;
1280 IOCPage2_t *pIoc2;
1281 IOCPage3_t *pIoc3;
1282 int iocnum;
1283 int numDevices = 0;
1284 unsigned int max_id;
1285 int id, jj, indexed_lun, lun_index;
1286 u32 lun;
1287 int maxWordsLeft;
1288 int numBytes;
1289 u8 port, devType, bus_id;
1290
1291 dctlprintk(("mptctl_gettargetinfo called.\n"));
1292 if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_targetinfo))) {
1293 printk(KERN_ERR "%s@%d::mptctl_gettargetinfo - "
1294 "Unable to read in mpt_ioctl_targetinfo struct @ %p\n",
1295 __FILE__, __LINE__, uarg);
1296 return -EFAULT;
1297 }
1298
1299 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
1300 (ioc == NULL)) {
1301 dctlprintk((KERN_ERR "%s::mptctl_gettargetinfo() @%d - ioc%d not found!\n",
1302 __FILE__, __LINE__, iocnum));
1303 return -ENODEV;
1304 }
1305
1306 /* Get the port number and set the maximum number of bytes
1307 * in the returned structure.
1308 * Ignore the port setting.
1309 */
1310 numBytes = karg.hdr.maxDataSize - sizeof(mpt_ioctl_header);
1311 maxWordsLeft = numBytes/sizeof(int);
1312 port = karg.hdr.port;
1313
1314 if (maxWordsLeft <= 0) {
1315 printk(KERN_ERR "%s::mptctl_gettargetinfo() @%d - no memory available!\n",
1316 __FILE__, __LINE__);
1317 return -ENOMEM;
1318 }
1319
1320 /* Fill in the data and return the structure to the calling
1321 * program
1322 */
1323
1324 /* struct mpt_ioctl_targetinfo does not contain sufficient space
1325 * for the target structures so when the IOCTL is called, there is
1326 * not sufficient stack space for the structure. Allocate memory,
1327 * populate the memory, copy back to the user, then free memory.
1328 * targetInfo format:
1329 * bits 31-24: reserved
1330 * 23-16: LUN
1331 * 15- 8: Bus Number
1332 * 7- 0: Target ID
1333 */
1334 pmem = kmalloc(numBytes, GFP_KERNEL);
1335 if (pmem == NULL) {
1336 printk(KERN_ERR "%s::mptctl_gettargetinfo() @%d - no memory available!\n",
1337 __FILE__, __LINE__);
1338 return -ENOMEM;
1339 }
1340 memset(pmem, 0, numBytes);
1341 pdata = (int *) pmem;
1342
1343 /* Get number of devices
1344 */
1345 if ((sh = ioc->sh) != NULL) {
1346
1347 max_id = sh->max_id - 1;
1348 hd = (MPT_SCSI_HOST *) sh->hostdata;
1349
1350 /* Check all of the target structures.
1351 * Save the Id and increment the counter,
1352 * if ptr non-null.
1353 * sh->max_id = maximum target ID + 1
1354 */
1355 if (hd && hd->Targets) {
1356 mpt_findImVolumes(ioc);
1357 pIoc2 = ioc->spi_data.pIocPg2;
1358 for ( id = 0; id <= max_id; ) {
1359 if ( pIoc2 && pIoc2->NumActiveVolumes ) {
1360 if ( id == pIoc2->RaidVolume[0].VolumeID ) {
1361 if (maxWordsLeft <= 0) {
1362 printk(KERN_ERR "mptctl_gettargetinfo - "
1363 "buffer is full but volume is available on ioc %d\n, numDevices=%d", iocnum, numDevices);
1364 goto data_space_full;
1365 }
1366 if ( ( pIoc2->RaidVolume[0].Flags & MPI_IOCPAGE2_FLAG_VOLUME_INACTIVE ) == 0 )
1367 devType = 0x80;
1368 else
1369 devType = 0xC0;
1370 bus_id = pIoc2->RaidVolume[0].VolumeBus;
1371 numDevices++;
1372 *pdata = ( (devType << 24) | (bus_id << 8) | id );
1373 dctlprintk((KERN_ERR "mptctl_gettargetinfo - "
1374 "volume ioc=%d target=%x numDevices=%d pdata=%p\n", iocnum, *pdata, numDevices, pdata));
1375 pdata++;
1376 --maxWordsLeft;
1377 goto next_id;
1378 } else {
1379 pIoc3 = ioc->spi_data.pIocPg3;
1380 for ( jj = 0; jj < pIoc3->NumPhysDisks; jj++ ) {
1381 if ( pIoc3->PhysDisk[jj].PhysDiskID == id )
1382 goto next_id;
1383 }
1384 }
1385 }
1386 if ( (vdev = hd->Targets[id]) ) {
1387 for (jj = 0; jj <= MPT_LAST_LUN; jj++) {
1388 lun_index = (jj >> 5);
1389 indexed_lun = (jj % 32);
1390 lun = (1 << indexed_lun);
1391 if (vdev->luns[lun_index] & lun) {
1392 if (maxWordsLeft <= 0) {
1393 printk(KERN_ERR "mptctl_gettargetinfo - "
1394 "buffer is full but more targets are available on ioc %d numDevices=%d\n", iocnum, numDevices);
1395 goto data_space_full;
1396 }
1397 bus_id = vdev->bus_id;
1398 numDevices++;
1399 *pdata = ( (jj << 16) | (bus_id << 8) | id );
1400 dctlprintk((KERN_ERR "mptctl_gettargetinfo - "
1401 "target ioc=%d target=%x numDevices=%d pdata=%p\n", iocnum, *pdata, numDevices, pdata));
1402 pdata++;
1403 --maxWordsLeft;
1404 }
1405 }
1406 }
1407 next_id:
1408 id++;
1409 }
1410 }
1411 }
1412 data_space_full:
1413 karg.numDevices = numDevices;
1414
1415 /* Copy part of the data from kernel memory to user memory
1416 */
1417 if (copy_to_user((char __user *)arg, &karg,
1418 sizeof(struct mpt_ioctl_targetinfo))) {
1419 printk(KERN_ERR "%s@%d::mptctl_gettargetinfo - "
1420 "Unable to write out mpt_ioctl_targetinfo struct @ %p\n",
1421 __FILE__, __LINE__, uarg);
1422 kfree(pmem);
1423 return -EFAULT;
1424 }
1425
1426 /* Copy the remaining data from kernel memory to user memory
1427 */
1428 if (copy_to_user(uarg->targetInfo, pmem, numBytes)) {
1429 printk(KERN_ERR "%s@%d::mptctl_gettargetinfo - "
1430 "Unable to write out mpt_ioctl_targetinfo struct @ %p\n",
1431 __FILE__, __LINE__, pdata);
1432 kfree(pmem);
1433 return -EFAULT;
1434 }
1435
1436 kfree(pmem);
1437
1438 return 0;
1439 }
1440
1441 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1442 /* MPT IOCTL Test function.
1443 *
1444 * Outputs: None.
1445 * Return: 0 if successful
1446 * -EFAULT if data unavailable
1447 * -ENODEV if no such device/adapter
1448 */
1449 static int
1450 mptctl_readtest (unsigned long arg)
1451 {
1452 struct mpt_ioctl_test __user *uarg = (void __user *) arg;
1453 struct mpt_ioctl_test karg;
1454 MPT_ADAPTER *ioc;
1455 int iocnum;
1456
1457 dctlprintk(("mptctl_readtest called.\n"));
1458 if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_test))) {
1459 printk(KERN_ERR "%s@%d::mptctl_readtest - "
1460 "Unable to read in mpt_ioctl_test struct @ %p\n",
1461 __FILE__, __LINE__, uarg);
1462 return -EFAULT;
1463 }
1464
1465 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
1466 (ioc == NULL)) {
1467 dctlprintk((KERN_ERR "%s::mptctl_readtest() @%d - ioc%d not found!\n",
1468 __FILE__, __LINE__, iocnum));
1469 return -ENODEV;
1470 }
1471
1472 /* Fill in the data and return the structure to the calling
1473 * program
1474 */
1475
1476 #ifdef MFCNT
1477 karg.chip_type = ioc->mfcnt;
1478 #else
1479 karg.chip_type = ioc->pcidev->device;
1480 #endif
1481 strncpy (karg.name, ioc->name, MPT_MAX_NAME);
1482 karg.name[MPT_MAX_NAME-1]='\0';
1483 strncpy (karg.product, ioc->prod_name, MPT_PRODUCT_LENGTH);
1484 karg.product[MPT_PRODUCT_LENGTH-1]='\0';
1485
1486 /* Copy the data from kernel memory to user memory
1487 */
1488 if (copy_to_user((char __user *)arg, &karg, sizeof(struct mpt_ioctl_test))) {
1489 printk(KERN_ERR "%s@%d::mptctl_readtest - "
1490 "Unable to write out mpt_ioctl_test struct @ %p\n",
1491 __FILE__, __LINE__, uarg);
1492 return -EFAULT;
1493 }
1494
1495 return 0;
1496 }
1497
1498 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1499 /*
1500 * mptctl_eventquery - Query the host adapter for the event types
1501 * that are being logged.
1502 * @arg: User space argument
1503 *
1504 * Outputs: None.
1505 * Return: 0 if successful
1506 * -EFAULT if data unavailable
1507 * -ENODEV if no such device/adapter
1508 */
1509 static int
1510 mptctl_eventquery (unsigned long arg)
1511 {
1512 struct mpt_ioctl_eventquery __user *uarg = (void __user *) arg;
1513 struct mpt_ioctl_eventquery karg;
1514 MPT_ADAPTER *ioc;
1515 int iocnum;
1516
1517 dctlprintk(("mptctl_eventquery called.\n"));
1518 if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_eventquery))) {
1519 printk(KERN_ERR "%s@%d::mptctl_eventquery - "
1520 "Unable to read in mpt_ioctl_eventquery struct @ %p\n",
1521 __FILE__, __LINE__, uarg);
1522 return -EFAULT;
1523 }
1524
1525 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
1526 (ioc == NULL)) {
1527 dctlprintk((KERN_ERR "%s::mptctl_eventquery() @%d - ioc%d not found!\n",
1528 __FILE__, __LINE__, iocnum));
1529 return -ENODEV;
1530 }
1531
1532 karg.eventEntries = ioc->eventLogSize;
1533 karg.eventTypes = ioc->eventTypes;
1534
1535 /* Copy the data from kernel memory to user memory
1536 */
1537 if (copy_to_user((char __user *)arg, &karg, sizeof(struct mpt_ioctl_eventquery))) {
1538 printk(KERN_ERR "%s@%d::mptctl_eventquery - "
1539 "Unable to write out mpt_ioctl_eventquery struct @ %p\n",
1540 __FILE__, __LINE__, uarg);
1541 return -EFAULT;
1542 }
1543 return 0;
1544 }
1545
1546 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1547 static int
1548 mptctl_eventenable (unsigned long arg)
1549 {
1550 struct mpt_ioctl_eventenable __user *uarg = (void __user *) arg;
1551 struct mpt_ioctl_eventenable karg;
1552 MPT_ADAPTER *ioc;
1553 int iocnum;
1554
1555 dctlprintk(("mptctl_eventenable called.\n"));
1556 if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_eventenable))) {
1557 printk(KERN_ERR "%s@%d::mptctl_eventenable - "
1558 "Unable to read in mpt_ioctl_eventenable struct @ %p\n",
1559 __FILE__, __LINE__, uarg);
1560 return -EFAULT;
1561 }
1562
1563 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
1564 (ioc == NULL)) {
1565 dctlprintk((KERN_ERR "%s::mptctl_eventenable() @%d - ioc%d not found!\n",
1566 __FILE__, __LINE__, iocnum));
1567 return -ENODEV;
1568 }
1569
1570 if (ioc->events == NULL) {
1571 /* Have not yet allocated memory - do so now.
1572 */
1573 int sz = MPTCTL_EVENT_LOG_SIZE * sizeof(MPT_IOCTL_EVENTS);
1574 ioc->events = kmalloc(sz, GFP_KERNEL);
1575 if (ioc->events == NULL) {
1576 printk(KERN_ERR MYNAM ": ERROR - Insufficient memory to add adapter!\n");
1577 return -ENOMEM;
1578 }
1579 memset(ioc->events, 0, sz);
1580 ioc->alloc_total += sz;
1581
1582 ioc->eventLogSize = MPTCTL_EVENT_LOG_SIZE;
1583 ioc->eventContext = 0;
1584 }
1585
1586 /* Update the IOC event logging flag.
1587 */
1588 ioc->eventTypes = karg.eventTypes;
1589
1590 return 0;
1591 }
1592
1593 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1594 static int
1595 mptctl_eventreport (unsigned long arg)
1596 {
1597 struct mpt_ioctl_eventreport __user *uarg = (void __user *) arg;
1598 struct mpt_ioctl_eventreport karg;
1599 MPT_ADAPTER *ioc;
1600 int iocnum;
1601 int numBytes, maxEvents, max;
1602
1603 dctlprintk(("mptctl_eventreport called.\n"));
1604 if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_eventreport))) {
1605 printk(KERN_ERR "%s@%d::mptctl_eventreport - "
1606 "Unable to read in mpt_ioctl_eventreport struct @ %p\n",
1607 __FILE__, __LINE__, uarg);
1608 return -EFAULT;
1609 }
1610
1611 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
1612 (ioc == NULL)) {
1613 dctlprintk((KERN_ERR "%s::mptctl_eventreport() @%d - ioc%d not found!\n",
1614 __FILE__, __LINE__, iocnum));
1615 return -ENODEV;
1616 }
1617
1618 numBytes = karg.hdr.maxDataSize - sizeof(mpt_ioctl_header);
1619 maxEvents = numBytes/sizeof(MPT_IOCTL_EVENTS);
1620
1621
1622 max = ioc->eventLogSize < maxEvents ? ioc->eventLogSize : maxEvents;
1623
1624 /* If fewer than 1 event is requested, there must have
1625 * been some type of error.
1626 */
1627 if ((max < 1) || !ioc->events)
1628 return -ENODATA;
1629
1630 /* Copy the data from kernel memory to user memory
1631 */
1632 numBytes = max * sizeof(MPT_IOCTL_EVENTS);
1633 if (copy_to_user(uarg->eventData, ioc->events, numBytes)) {
1634 printk(KERN_ERR "%s@%d::mptctl_eventreport - "
1635 "Unable to write out mpt_ioctl_eventreport struct @ %p\n",
1636 __FILE__, __LINE__, ioc->events);
1637 return -EFAULT;
1638 }
1639
1640 return 0;
1641 }
1642
1643 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1644 static int
1645 mptctl_replace_fw (unsigned long arg)
1646 {
1647 struct mpt_ioctl_replace_fw __user *uarg = (void __user *) arg;
1648 struct mpt_ioctl_replace_fw karg;
1649 MPT_ADAPTER *ioc;
1650 int iocnum;
1651 int newFwSize;
1652
1653 dctlprintk(("mptctl_replace_fw called.\n"));
1654 if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_replace_fw))) {
1655 printk(KERN_ERR "%s@%d::mptctl_replace_fw - "
1656 "Unable to read in mpt_ioctl_replace_fw struct @ %p\n",
1657 __FILE__, __LINE__, uarg);
1658 return -EFAULT;
1659 }
1660
1661 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
1662 (ioc == NULL)) {
1663 dctlprintk((KERN_ERR "%s::mptctl_replace_fw() @%d - ioc%d not found!\n",
1664 __FILE__, __LINE__, iocnum));
1665 return -ENODEV;
1666 }
1667
1668 /* If caching FW, Free the old FW image
1669 */
1670 if (ioc->cached_fw == NULL)
1671 return 0;
1672
1673 mpt_free_fw_memory(ioc);
1674
1675 /* Allocate memory for the new FW image
1676 */
1677 newFwSize = karg.newImageSize;
1678
1679 if (newFwSize & 0x01)
1680 newFwSize += 1;
1681 if (newFwSize & 0x02)
1682 newFwSize += 2;
1683
1684 mpt_alloc_fw_memory(ioc, newFwSize);
1685 if (ioc->cached_fw == NULL)
1686 return -ENOMEM;
1687
1688 /* Copy the data from user memory to kernel space
1689 */
1690 if (copy_from_user(ioc->cached_fw, uarg->newImage, newFwSize)) {
1691 printk(KERN_ERR "%s@%d::mptctl_replace_fw - "
1692 "Unable to read in mpt_ioctl_replace_fw image "
1693 "@ %p\n", __FILE__, __LINE__, uarg);
1694 mpt_free_fw_memory(ioc);
1695 return -EFAULT;
1696 }
1697
1698 /* Update IOCFactsReply
1699 */
1700 ioc->facts.FWImageSize = newFwSize;
1701 return 0;
1702 }
1703
1704 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1705 /* MPT IOCTL MPTCOMMAND function.
1706 * Cast the arg into the mpt_ioctl_mpt_command structure.
1707 *
1708 * Outputs: None.
1709 * Return: 0 if successful
1710 * -EBUSY if previous command timout and IOC reset is not complete.
1711 * -EFAULT if data unavailable
1712 * -ENODEV if no such device/adapter
1713 * -ETIME if timer expires
1714 * -ENOMEM if memory allocation error
1715 */
1716 static int
1717 mptctl_mpt_command (unsigned long arg)
1718 {
1719 struct mpt_ioctl_command __user *uarg = (void __user *) arg;
1720 struct mpt_ioctl_command karg;
1721 MPT_ADAPTER *ioc;
1722 int iocnum;
1723 int rc;
1724
1725 dctlprintk(("mptctl_command called.\n"));
1726
1727 if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_command))) {
1728 printk(KERN_ERR "%s@%d::mptctl_mpt_command - "
1729 "Unable to read in mpt_ioctl_command struct @ %p\n",
1730 __FILE__, __LINE__, uarg);
1731 return -EFAULT;
1732 }
1733
1734 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
1735 (ioc == NULL)) {
1736 dctlprintk((KERN_ERR "%s::mptctl_mpt_command() @%d - ioc%d not found!\n",
1737 __FILE__, __LINE__, iocnum));
1738 return -ENODEV;
1739 }
1740
1741 rc = mptctl_do_mpt_command (karg, &uarg->MF);
1742
1743 return rc;
1744 }
1745
1746 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1747 /* Worker routine for the IOCTL MPTCOMMAND and MPTCOMMAND32 (sparc) commands.
1748 *
1749 * Outputs: None.
1750 * Return: 0 if successful
1751 * -EBUSY if previous command timout and IOC reset is not complete.
1752 * -EFAULT if data unavailable
1753 * -ENODEV if no such device/adapter
1754 * -ETIME if timer expires
1755 * -ENOMEM if memory allocation error
1756 * -EPERM if SCSI I/O and target is untagged
1757 */
1758 static int
1759 mptctl_do_mpt_command (struct mpt_ioctl_command karg, void __user *mfPtr)
1760 {
1761 MPT_ADAPTER *ioc;
1762 MPT_FRAME_HDR *mf = NULL;
1763 MPIHeader_t *hdr;
1764 char *psge;
1765 struct buflist bufIn; /* data In buffer */
1766 struct buflist bufOut; /* data Out buffer */
1767 dma_addr_t dma_addr_in;
1768 dma_addr_t dma_addr_out;
1769 int sgSize = 0; /* Num SG elements */
1770 int iocnum, flagsLength;
1771 int sz, rc = 0;
1772 int msgContext;
1773 u16 req_idx;
1774 ulong timeout;
1775
1776 dctlprintk(("mptctl_do_mpt_command called.\n"));
1777 bufIn.kptr = bufOut.kptr = NULL;
1778
1779 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
1780 (ioc == NULL)) {
1781 dctlprintk((KERN_ERR "%s::mptctl_do_mpt_command() @%d - ioc%d not found!\n",
1782 __FILE__, __LINE__, iocnum));
1783 return -ENODEV;
1784 }
1785 if (!ioc->ioctl) {
1786 printk(KERN_ERR "%s@%d::mptctl_do_mpt_command - "
1787 "No memory available during driver init.\n",
1788 __FILE__, __LINE__);
1789 return -ENOMEM;
1790 } else if (ioc->ioctl->status & MPT_IOCTL_STATUS_DID_IOCRESET) {
1791 printk(KERN_ERR "%s@%d::mptctl_do_mpt_command - "
1792 "Busy with IOC Reset \n", __FILE__, __LINE__);
1793 return -EBUSY;
1794 }
1795
1796 /* Verify that the final request frame will not be too large.
1797 */
1798 sz = karg.dataSgeOffset * 4;
1799 if (karg.dataInSize > 0)
1800 sz += sizeof(dma_addr_t) + sizeof(u32);
1801 if (karg.dataOutSize > 0)
1802 sz += sizeof(dma_addr_t) + sizeof(u32);
1803
1804 if (sz > ioc->req_sz) {
1805 printk(KERN_ERR "%s@%d::mptctl_do_mpt_command - "
1806 "Request frame too large (%d) maximum (%d)\n",
1807 __FILE__, __LINE__, sz, ioc->req_sz);
1808 return -EFAULT;
1809 }
1810
1811 /* Get a free request frame and save the message context.
1812 */
1813 if ((mf = mpt_get_msg_frame(mptctl_id, ioc)) == NULL)
1814 return -EAGAIN;
1815
1816 hdr = (MPIHeader_t *) mf;
1817 msgContext = le32_to_cpu(hdr->MsgContext);
1818 req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
1819
1820 /* Copy the request frame
1821 * Reset the saved message context.
1822 * Request frame in user space
1823 */
1824 if (copy_from_user(mf, mfPtr, karg.dataSgeOffset * 4)) {
1825 printk(KERN_ERR "%s@%d::mptctl_do_mpt_command - "
1826 "Unable to read MF from mpt_ioctl_command struct @ %p\n",
1827 __FILE__, __LINE__, mfPtr);
1828 rc = -EFAULT;
1829 goto done_free_mem;
1830 }
1831 hdr->MsgContext = cpu_to_le32(msgContext);
1832
1833
1834 /* Verify that this request is allowed.
1835 */
1836 switch (hdr->Function) {
1837 case MPI_FUNCTION_IOC_FACTS:
1838 case MPI_FUNCTION_PORT_FACTS:
1839 karg.dataOutSize = karg.dataInSize = 0;
1840 break;
1841
1842 case MPI_FUNCTION_CONFIG:
1843 case MPI_FUNCTION_FC_COMMON_TRANSPORT_SEND:
1844 case MPI_FUNCTION_FC_EX_LINK_SRVC_SEND:
1845 case MPI_FUNCTION_FW_UPLOAD:
1846 case MPI_FUNCTION_SCSI_ENCLOSURE_PROCESSOR:
1847 case MPI_FUNCTION_FW_DOWNLOAD:
1848 case MPI_FUNCTION_FC_PRIMITIVE_SEND:
1849 break;
1850
1851 case MPI_FUNCTION_SCSI_IO_REQUEST:
1852 if (ioc->sh) {
1853 SCSIIORequest_t *pScsiReq = (SCSIIORequest_t *) mf;
1854 VirtDevice *pTarget = NULL;
1855 MPT_SCSI_HOST *hd = NULL;
1856 int qtag = MPI_SCSIIO_CONTROL_UNTAGGED;
1857 int scsidir = 0;
1858 int target = (int) pScsiReq->TargetID;
1859 int dataSize;
1860
1861 if ((target < 0) || (target >= ioc->sh->max_id)) {
1862 printk(KERN_ERR "%s@%d::mptctl_do_mpt_command - "
1863 "Target ID out of bounds. \n",
1864 __FILE__, __LINE__);
1865 rc = -ENODEV;
1866 goto done_free_mem;
1867 }
1868
1869 pScsiReq->MsgFlags = mpt_msg_flags();
1870
1871 /* verify that app has not requested
1872 * more sense data than driver
1873 * can provide, if so, reset this parameter
1874 * set the sense buffer pointer low address
1875 * update the control field to specify Q type
1876 */
1877 if (karg.maxSenseBytes > MPT_SENSE_BUFFER_SIZE)
1878 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
1879 else
1880 pScsiReq->SenseBufferLength = karg.maxSenseBytes;
1881
1882 pScsiReq->SenseBufferLowAddr =
1883 cpu_to_le32(ioc->sense_buf_low_dma
1884 + (req_idx * MPT_SENSE_BUFFER_ALLOC));
1885
1886 if ((hd = (MPT_SCSI_HOST *) ioc->sh->hostdata)) {
1887 if (hd->Targets)
1888 pTarget = hd->Targets[target];
1889 }
1890
1891 if (pTarget &&(pTarget->tflags & MPT_TARGET_FLAGS_Q_YES))
1892 qtag = MPI_SCSIIO_CONTROL_SIMPLEQ;
1893
1894 /* Have the IOCTL driver set the direction based
1895 * on the dataOutSize (ordering issue with Sparc).
1896 */
1897 if (karg.dataOutSize > 0) {
1898 scsidir = MPI_SCSIIO_CONTROL_WRITE;
1899 dataSize = karg.dataOutSize;
1900 } else {
1901 scsidir = MPI_SCSIIO_CONTROL_READ;
1902 dataSize = karg.dataInSize;
1903 }
1904
1905 pScsiReq->Control = cpu_to_le32(scsidir | qtag);
1906 pScsiReq->DataLength = cpu_to_le32(dataSize);
1907
1908 ioc->ioctl->reset = MPTCTL_RESET_OK;
1909 ioc->ioctl->target = target;
1910
1911 } else {
1912 printk(KERN_ERR "%s@%d::mptctl_do_mpt_command - "
1913 "SCSI driver is not loaded. \n",
1914 __FILE__, __LINE__);
1915 rc = -EFAULT;
1916 goto done_free_mem;
1917 }
1918 break;
1919
1920 case MPI_FUNCTION_RAID_ACTION:
1921 /* Just add a SGE
1922 */
1923 break;
1924
1925 case MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
1926 if (ioc->sh) {
1927 SCSIIORequest_t *pScsiReq = (SCSIIORequest_t *) mf;
1928 int qtag = MPI_SCSIIO_CONTROL_SIMPLEQ;
1929 int scsidir = MPI_SCSIIO_CONTROL_READ;
1930 int dataSize;
1931
1932 pScsiReq->MsgFlags = mpt_msg_flags();
1933
1934 /* verify that app has not requested
1935 * more sense data than driver
1936 * can provide, if so, reset this parameter
1937 * set the sense buffer pointer low address
1938 * update the control field to specify Q type
1939 */
1940 if (karg.maxSenseBytes > MPT_SENSE_BUFFER_SIZE)
1941 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
1942 else
1943 pScsiReq->SenseBufferLength = karg.maxSenseBytes;
1944
1945 pScsiReq->SenseBufferLowAddr =
1946 cpu_to_le32(ioc->sense_buf_low_dma
1947 + (req_idx * MPT_SENSE_BUFFER_ALLOC));
1948
1949 /* All commands to physical devices are tagged
1950 */
1951
1952 /* Have the IOCTL driver set the direction based
1953 * on the dataOutSize (ordering issue with Sparc).
1954 */
1955 if (karg.dataOutSize > 0) {
1956 scsidir = MPI_SCSIIO_CONTROL_WRITE;
1957 dataSize = karg.dataOutSize;
1958 } else {
1959 scsidir = MPI_SCSIIO_CONTROL_READ;
1960 dataSize = karg.dataInSize;
1961 }
1962
1963 pScsiReq->Control = cpu_to_le32(scsidir | qtag);
1964 pScsiReq->DataLength = cpu_to_le32(dataSize);
1965
1966 ioc->ioctl->reset = MPTCTL_RESET_OK;
1967 ioc->ioctl->target = pScsiReq->TargetID;
1968 } else {
1969 printk(KERN_ERR "%s@%d::mptctl_do_mpt_command - "
1970 "SCSI driver is not loaded. \n",
1971 __FILE__, __LINE__);
1972 rc = -EFAULT;
1973 goto done_free_mem;
1974 }
1975 break;
1976
1977 case MPI_FUNCTION_SCSI_TASK_MGMT:
1978 {
1979 MPT_SCSI_HOST *hd = NULL;
1980 if ((ioc->sh == NULL) || ((hd = (MPT_SCSI_HOST *)ioc->sh->hostdata) == NULL)) {
1981 printk(KERN_ERR "%s@%d::mptctl_do_mpt_command - "
1982 "SCSI driver not loaded or SCSI host not found. \n",
1983 __FILE__, __LINE__);
1984 rc = -EFAULT;
1985 goto done_free_mem;
1986 } else if (mptctl_set_tm_flags(hd) != 0) {
1987 rc = -EPERM;
1988 goto done_free_mem;
1989 }
1990 }
1991 break;
1992
1993 case MPI_FUNCTION_IOC_INIT:
1994 {
1995 IOCInit_t *pInit = (IOCInit_t *) mf;
1996 u32 high_addr, sense_high;
1997
1998 /* Verify that all entries in the IOC INIT match
1999 * existing setup (and in LE format).
2000 */
2001 if (sizeof(dma_addr_t) == sizeof(u64)) {
2002 high_addr = cpu_to_le32((u32)((u64)ioc->req_frames_dma >> 32));
2003 sense_high= cpu_to_le32((u32)((u64)ioc->sense_buf_pool_dma >> 32));
2004 } else {
2005 high_addr = 0;
2006 sense_high= 0;
2007 }
2008
2009 if ((pInit->Flags != 0) || (pInit->MaxDevices != ioc->facts.MaxDevices) ||
2010 (pInit->MaxBuses != ioc->facts.MaxBuses) ||
2011 (pInit->ReplyFrameSize != cpu_to_le16(ioc->reply_sz)) ||
2012 (pInit->HostMfaHighAddr != high_addr) ||
2013 (pInit->SenseBufferHighAddr != sense_high)) {
2014 printk(KERN_ERR "%s@%d::mptctl_do_mpt_command - "
2015 "IOC_INIT issued with 1 or more incorrect parameters. Rejected.\n",
2016 __FILE__, __LINE__);
2017 rc = -EFAULT;
2018 goto done_free_mem;
2019 }
2020 }
2021 break;
2022 default:
2023 /*
2024 * MPI_FUNCTION_PORT_ENABLE
2025 * MPI_FUNCTION_TARGET_CMD_BUFFER_POST
2026 * MPI_FUNCTION_TARGET_ASSIST
2027 * MPI_FUNCTION_TARGET_STATUS_SEND
2028 * MPI_FUNCTION_TARGET_MODE_ABORT
2029 * MPI_FUNCTION_IOC_MESSAGE_UNIT_RESET
2030 * MPI_FUNCTION_IO_UNIT_RESET
2031 * MPI_FUNCTION_HANDSHAKE
2032 * MPI_FUNCTION_REPLY_FRAME_REMOVAL
2033 * MPI_FUNCTION_EVENT_NOTIFICATION
2034 * (driver handles event notification)
2035 * MPI_FUNCTION_EVENT_ACK
2036 */
2037
2038 /* What to do with these??? CHECK ME!!!
2039 MPI_FUNCTION_FC_LINK_SRVC_BUF_POST
2040 MPI_FUNCTION_FC_LINK_SRVC_RSP
2041 MPI_FUNCTION_FC_ABORT
2042 MPI_FUNCTION_LAN_SEND
2043 MPI_FUNCTION_LAN_RECEIVE
2044 MPI_FUNCTION_LAN_RESET
2045 */
2046
2047 printk(KERN_ERR "%s@%d::mptctl_do_mpt_command - "
2048 "Illegal request (function 0x%x) \n",
2049 __FILE__, __LINE__, hdr->Function);
2050 rc = -EFAULT;
2051 goto done_free_mem;
2052 }
2053
2054 /* Add the SGL ( at most one data in SGE and one data out SGE )
2055 * In the case of two SGE's - the data out (write) will always
2056 * preceede the data in (read) SGE. psgList is used to free the
2057 * allocated memory.
2058 */
2059 psge = (char *) (((int *) mf) + karg.dataSgeOffset);
2060 flagsLength = 0;
2061
2062 /* bufIn and bufOut are used for user to kernel space transfers
2063 */
2064 bufIn.kptr = bufOut.kptr = NULL;
2065 bufIn.len = bufOut.len = 0;
2066
2067 if (karg.dataOutSize > 0)
2068 sgSize ++;
2069
2070 if (karg.dataInSize > 0)
2071 sgSize ++;
2072
2073 if (sgSize > 0) {
2074
2075 /* Set up the dataOut memory allocation */
2076 if (karg.dataOutSize > 0) {
2077 if (karg.dataInSize > 0) {
2078 flagsLength = ( MPI_SGE_FLAGS_SIMPLE_ELEMENT |
2079 MPI_SGE_FLAGS_END_OF_BUFFER |
2080 MPI_SGE_FLAGS_DIRECTION |
2081 mpt_addr_size() )
2082 << MPI_SGE_FLAGS_SHIFT;
2083 } else {
2084 flagsLength = MPT_SGE_FLAGS_SSIMPLE_WRITE;
2085 }
2086 flagsLength |= karg.dataOutSize;
2087 bufOut.len = karg.dataOutSize;
2088 bufOut.kptr = pci_alloc_consistent(
2089 ioc->pcidev, bufOut.len, &dma_addr_out);
2090
2091 if (bufOut.kptr == NULL) {
2092 rc = -ENOMEM;
2093 goto done_free_mem;
2094 } else {
2095 /* Set up this SGE.
2096 * Copy to MF and to sglbuf
2097 */
2098 mpt_add_sge(psge, flagsLength, dma_addr_out);
2099 psge += (sizeof(u32) + sizeof(dma_addr_t));
2100
2101 /* Copy user data to kernel space.
2102 */
2103 if (copy_from_user(bufOut.kptr,
2104 karg.dataOutBufPtr,
2105 bufOut.len)) {
2106 printk(KERN_ERR
2107 "%s@%d::mptctl_do_mpt_command - Unable "
2108 "to read user data "
2109 "struct @ %p\n",
2110 __FILE__, __LINE__,karg.dataOutBufPtr);
2111 rc = -EFAULT;
2112 goto done_free_mem;
2113 }
2114 }
2115 }
2116
2117 if (karg.dataInSize > 0) {
2118 flagsLength = MPT_SGE_FLAGS_SSIMPLE_READ;
2119 flagsLength |= karg.dataInSize;
2120
2121 bufIn.len = karg.dataInSize;
2122 bufIn.kptr = pci_alloc_consistent(ioc->pcidev,
2123 bufIn.len, &dma_addr_in);
2124
2125 if (bufIn.kptr == NULL) {
2126 rc = -ENOMEM;
2127 goto done_free_mem;
2128 } else {
2129 /* Set up this SGE
2130 * Copy to MF and to sglbuf
2131 */
2132 mpt_add_sge(psge, flagsLength, dma_addr_in);
2133 }
2134 }
2135 } else {
2136 /* Add a NULL SGE
2137 */
2138 mpt_add_sge(psge, flagsLength, (dma_addr_t) -1);
2139 }
2140
2141 ioc->ioctl->wait_done = 0;
2142 if (hdr->Function == MPI_FUNCTION_SCSI_TASK_MGMT) {
2143
2144 DBG_DUMP_TM_REQUEST_FRAME((u32 *)mf);
2145
2146 if (mpt_send_handshake_request(mptctl_id, ioc,
2147 sizeof(SCSITaskMgmt_t), (u32*)mf,
2148 CAN_SLEEP) != 0) {
2149 dfailprintk((MYIOC_s_ERR_FMT "_send_handshake FAILED!"
2150 " (ioc %p, mf %p) \n", ioc->name,
2151 ioc, mf));
2152 mptctl_free_tm_flags(ioc);
2153 rc = -ENODATA;
2154 goto done_free_mem;
2155 }
2156
2157 } else
2158 mpt_put_msg_frame(mptctl_id, ioc, mf);
2159
2160 /* Now wait for the command to complete */
2161 timeout = (karg.timeout > 0) ? karg.timeout : MPT_IOCTL_DEFAULT_TIMEOUT;
2162 timeout = wait_event_interruptible_timeout(mptctl_wait,
2163 ioc->ioctl->wait_done == 1,
2164 HZ*timeout);
2165
2166 if(timeout <=0 && (ioc->ioctl->wait_done != 1 )) {
2167 /* Now we need to reset the board */
2168
2169 if (hdr->Function == MPI_FUNCTION_SCSI_TASK_MGMT)
2170 mptctl_free_tm_flags(ioc);
2171
2172 mptctl_timeout_expired(ioc->ioctl);
2173 rc = -ENODATA;
2174 goto done_free_mem;
2175 }
2176
2177 mf = NULL;
2178
2179 /* If a valid reply frame, copy to the user.
2180 * Offset 2: reply length in U32's
2181 */
2182 if (ioc->ioctl->status & MPT_IOCTL_STATUS_RF_VALID) {
2183 if (karg.maxReplyBytes < ioc->reply_sz) {
2184 sz = min(karg.maxReplyBytes, 4*ioc->ioctl->ReplyFrame[2]);
2185 } else {
2186 sz = min(ioc->reply_sz, 4*ioc->ioctl->ReplyFrame[2]);
2187 }
2188
2189 if (sz > 0) {
2190 if (copy_to_user(karg.replyFrameBufPtr,
2191 &ioc->ioctl->ReplyFrame, sz)){
2192 printk(KERN_ERR
2193 "%s@%d::mptctl_do_mpt_command - "
2194 "Unable to write out reply frame %p\n",
2195 __FILE__, __LINE__, karg.replyFrameBufPtr);
2196 rc = -ENODATA;
2197 goto done_free_mem;
2198 }
2199 }
2200 }
2201
2202 /* If valid sense data, copy to user.
2203 */
2204 if (ioc->ioctl->status & MPT_IOCTL_STATUS_SENSE_VALID) {
2205 sz = min(karg.maxSenseBytes, MPT_SENSE_BUFFER_SIZE);
2206 if (sz > 0) {
2207 if (copy_to_user(karg.senseDataPtr, ioc->ioctl->sense, sz)) {
2208 printk(KERN_ERR "%s@%d::mptctl_do_mpt_command - "
2209 "Unable to write sense data to user %p\n",
2210 __FILE__, __LINE__,
2211 karg.senseDataPtr);
2212 rc = -ENODATA;
2213 goto done_free_mem;
2214 }
2215 }
2216 }
2217
2218 /* If the overall status is _GOOD and data in, copy data
2219 * to user.
2220 */
2221 if ((ioc->ioctl->status & MPT_IOCTL_STATUS_COMMAND_GOOD) &&
2222 (karg.dataInSize > 0) && (bufIn.kptr)) {
2223
2224 if (copy_to_user(karg.dataInBufPtr,
2225 bufIn.kptr, karg.dataInSize)) {
2226 printk(KERN_ERR "%s@%d::mptctl_do_mpt_command - "
2227 "Unable to write data to user %p\n",
2228 __FILE__, __LINE__,
2229 karg.dataInBufPtr);
2230 rc = -ENODATA;
2231 }
2232 }
2233
2234 done_free_mem:
2235
2236 ioc->ioctl->status &= ~(MPT_IOCTL_STATUS_COMMAND_GOOD |
2237 MPT_IOCTL_STATUS_SENSE_VALID |
2238 MPT_IOCTL_STATUS_RF_VALID );
2239
2240 /* Free the allocated memory.
2241 */
2242 if (bufOut.kptr != NULL) {
2243 pci_free_consistent(ioc->pcidev,
2244 bufOut.len, (void *) bufOut.kptr, dma_addr_out);
2245 }
2246
2247 if (bufIn.kptr != NULL) {
2248 pci_free_consistent(ioc->pcidev,
2249 bufIn.len, (void *) bufIn.kptr, dma_addr_in);
2250 }
2251
2252 /* mf is null if command issued successfully
2253 * otherwise, failure occured after mf acquired.
2254 */
2255 if (mf)
2256 mpt_free_msg_frame(ioc, mf);
2257
2258 return rc;
2259 }
2260
2261 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2262 /* Prototype Routine for the HP HOST INFO command.
2263 *
2264 * Outputs: None.
2265 * Return: 0 if successful
2266 * -EFAULT if data unavailable
2267 * -EBUSY if previous command timout and IOC reset is not complete.
2268 * -ENODEV if no such device/adapter
2269 * -ETIME if timer expires
2270 * -ENOMEM if memory allocation error
2271 */
2272 static int
2273 mptctl_hp_hostinfo(unsigned long arg, unsigned int data_size)
2274 {
2275 hp_host_info_t __user *uarg = (void __user *) arg;
2276 MPT_ADAPTER *ioc;
2277 struct pci_dev *pdev;
2278 char *pbuf;
2279 dma_addr_t buf_dma;
2280 hp_host_info_t karg;
2281 CONFIGPARMS cfg;
2282 ConfigPageHeader_t hdr;
2283 int iocnum;
2284 int rc, cim_rev;
2285
2286 dctlprintk((": mptctl_hp_hostinfo called.\n"));
2287 /* Reset long to int. Should affect IA64 and SPARC only
2288 */
2289 if (data_size == sizeof(hp_host_info_t))
2290 cim_rev = 1;
2291 else if (data_size == sizeof(hp_host_info_rev0_t))
2292 cim_rev = 0; /* obsolete */
2293 else
2294 return -EFAULT;
2295
2296 if (copy_from_user(&karg, uarg, sizeof(hp_host_info_t))) {
2297 printk(KERN_ERR "%s@%d::mptctl_hp_host_info - "
2298 "Unable to read in hp_host_info struct @ %p\n",
2299 __FILE__, __LINE__, uarg);
2300 return -EFAULT;
2301 }
2302
2303 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
2304 (ioc == NULL)) {
2305 dctlprintk((KERN_ERR "%s::mptctl_hp_hostinfo() @%d - ioc%d not found!\n",
2306 __FILE__, __LINE__, iocnum));
2307 return -ENODEV;
2308 }
2309
2310 /* Fill in the data and return the structure to the calling
2311 * program
2312 */
2313 pdev = (struct pci_dev *) ioc->pcidev;
2314
2315 karg.vendor = pdev->vendor;
2316 karg.device = pdev->device;
2317 karg.subsystem_id = pdev->subsystem_device;
2318 karg.subsystem_vendor = pdev->subsystem_vendor;
2319 karg.devfn = pdev->devfn;
2320 karg.bus = pdev->bus->number;
2321
2322 /* Save the SCSI host no. if
2323 * SCSI driver loaded
2324 */
2325 if (ioc->sh != NULL)
2326 karg.host_no = ioc->sh->host_no;
2327 else
2328 karg.host_no = -1;
2329
2330 /* Reformat the fw_version into a string
2331 */
2332 karg.fw_version[0] = ioc->facts.FWVersion.Struct.Major >= 10 ?
2333 ((ioc->facts.FWVersion.Struct.Major / 10) + '0') : '0';
2334 karg.fw_version[1] = (ioc->facts.FWVersion.Struct.Major % 10 ) + '0';
2335 karg.fw_version[2] = '.';
2336 karg.fw_version[3] = ioc->facts.FWVersion.Struct.Minor >= 10 ?
2337 ((ioc->facts.FWVersion.Struct.Minor / 10) + '0') : '0';
2338 karg.fw_version[4] = (ioc->facts.FWVersion.Struct.Minor % 10 ) + '0';
2339 karg.fw_version[5] = '.';
2340 karg.fw_version[6] = ioc->facts.FWVersion.Struct.Unit >= 10 ?
2341 ((ioc->facts.FWVersion.Struct.Unit / 10) + '0') : '0';
2342 karg.fw_version[7] = (ioc->facts.FWVersion.Struct.Unit % 10 ) + '0';
2343 karg.fw_version[8] = '.';
2344 karg.fw_version[9] = ioc->facts.FWVersion.Struct.Dev >= 10 ?
2345 ((ioc->facts.FWVersion.Struct.Dev / 10) + '0') : '0';
2346 karg.fw_version[10] = (ioc->facts.FWVersion.Struct.Dev % 10 ) + '0';
2347 karg.fw_version[11] = '\0';
2348
2349 /* Issue a config request to get the device serial number
2350 */
2351 hdr.PageVersion = 0;
2352 hdr.PageLength = 0;
2353 hdr.PageNumber = 0;
2354 hdr.PageType = MPI_CONFIG_PAGETYPE_MANUFACTURING;
2355 cfg.hdr = &hdr;
2356 cfg.physAddr = -1;
2357 cfg.pageAddr = 0;
2358 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
2359 cfg.dir = 0; /* read */
2360 cfg.timeout = 10;
2361
2362 strncpy(karg.serial_number, " ", 24);
2363 if (mpt_config(ioc, &cfg) == 0) {
2364 if (cfg.hdr->PageLength > 0) {
2365 /* Issue the second config page request */
2366 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
2367
2368 pbuf = pci_alloc_consistent(ioc->pcidev, hdr.PageLength * 4, &buf_dma);
2369 if (pbuf) {
2370 cfg.physAddr = buf_dma;
2371 if (mpt_config(ioc, &cfg) == 0) {
2372 ManufacturingPage0_t *pdata = (ManufacturingPage0_t *) pbuf;
2373 if (strlen(pdata->BoardTracerNumber) > 1) {
2374 strncpy(karg.serial_number, pdata->BoardTracerNumber, 24);
2375 karg.serial_number[24-1]='\0';
2376 }
2377 }
2378 pci_free_consistent(ioc->pcidev, hdr.PageLength * 4, pbuf, buf_dma);
2379 pbuf = NULL;
2380 }
2381 }
2382 }
2383 rc = mpt_GetIocState(ioc, 1);
2384 switch (rc) {
2385 case MPI_IOC_STATE_OPERATIONAL:
2386 karg.ioc_status = HP_STATUS_OK;
2387 break;
2388
2389 case MPI_IOC_STATE_FAULT:
2390 karg.ioc_status = HP_STATUS_FAILED;
2391 break;
2392
2393 case MPI_IOC_STATE_RESET:
2394 case MPI_IOC_STATE_READY:
2395 default:
2396 karg.ioc_status = HP_STATUS_OTHER;
2397 break;
2398 }
2399
2400 karg.base_io_addr = pci_resource_start(pdev, 0);
2401
2402 if (ioc->bus_type == FC)
2403 karg.bus_phys_width = HP_BUS_WIDTH_UNK;
2404 else
2405 karg.bus_phys_width = HP_BUS_WIDTH_16;
2406
2407 karg.hard_resets = 0;
2408 karg.soft_resets = 0;
2409 karg.timeouts = 0;
2410 if (ioc->sh != NULL) {
2411 MPT_SCSI_HOST *hd = (MPT_SCSI_HOST *)ioc->sh->hostdata;
2412
2413 if (hd && (cim_rev == 1)) {
2414 karg.hard_resets = hd->hard_resets;
2415 karg.soft_resets = hd->soft_resets;
2416 karg.timeouts = hd->timeouts;
2417 }
2418 }
2419
2420 cfg.pageAddr = 0;
2421 cfg.action = MPI_TOOLBOX_ISTWI_READ_WRITE_TOOL;
2422 cfg.dir = MPI_TB_ISTWI_FLAGS_READ;
2423 cfg.timeout = 10;
2424 pbuf = pci_alloc_consistent(ioc->pcidev, 4, &buf_dma);
2425 if (pbuf) {
2426 cfg.physAddr = buf_dma;
2427 if ((mpt_toolbox(ioc, &cfg)) == 0) {
2428 karg.rsvd = *(u32 *)pbuf;
2429 }
2430 pci_free_consistent(ioc->pcidev, 4, pbuf, buf_dma);
2431 pbuf = NULL;
2432 }
2433
2434 /* Copy the data from kernel memory to user memory
2435 */
2436 if (copy_to_user((char __user *)arg, &karg, sizeof(hp_host_info_t))) {
2437 printk(KERN_ERR "%s@%d::mptctl_hpgethostinfo - "
2438 "Unable to write out hp_host_info @ %p\n",
2439 __FILE__, __LINE__, uarg);
2440 return -EFAULT;
2441 }
2442
2443 return 0;
2444
2445 }
2446
2447 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2448 /* Prototype Routine for the HP TARGET INFO command.
2449 *
2450 * Outputs: None.
2451 * Return: 0 if successful
2452 * -EFAULT if data unavailable
2453 * -EBUSY if previous command timout and IOC reset is not complete.
2454 * -ENODEV if no such device/adapter
2455 * -ETIME if timer expires
2456 * -ENOMEM if memory allocation error
2457 */
2458 static int
2459 mptctl_hp_targetinfo(unsigned long arg)
2460 {
2461 hp_target_info_t __user *uarg = (void __user *) arg;
2462 SCSIDevicePage0_t *pg0_alloc;
2463 SCSIDevicePage3_t *pg3_alloc;
2464 MPT_ADAPTER *ioc;
2465 MPT_SCSI_HOST *hd = NULL;
2466 hp_target_info_t karg;
2467 int iocnum;
2468 int data_sz;
2469 dma_addr_t page_dma;
2470 CONFIGPARMS cfg;
2471 ConfigPageHeader_t hdr;
2472 int tmp, np, rc = 0;
2473
2474 dctlprintk((": mptctl_hp_targetinfo called.\n"));
2475 if (copy_from_user(&karg, uarg, sizeof(hp_target_info_t))) {
2476 printk(KERN_ERR "%s@%d::mptctl_hp_targetinfo - "
2477 "Unable to read in hp_host_targetinfo struct @ %p\n",
2478 __FILE__, __LINE__, uarg);
2479 return -EFAULT;
2480 }
2481
2482 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
2483 (ioc == NULL)) {
2484 dctlprintk((KERN_ERR "%s::mptctl_hp_targetinfo() @%d - ioc%d not found!\n",
2485 __FILE__, __LINE__, iocnum));
2486 return -ENODEV;
2487 }
2488
2489 /* There is nothing to do for FCP parts.
2490 */
2491 if (ioc->bus_type == FC)
2492 return 0;
2493
2494 if ((ioc->spi_data.sdp0length == 0) || (ioc->sh == NULL))
2495 return 0;
2496
2497 if (ioc->sh->host_no != karg.hdr.host)
2498 return -ENODEV;
2499
2500 /* Get the data transfer speeds
2501 */
2502 data_sz = ioc->spi_data.sdp0length * 4;
2503 pg0_alloc = (SCSIDevicePage0_t *) pci_alloc_consistent(ioc->pcidev, data_sz, &page_dma);
2504 if (pg0_alloc) {
2505 hdr.PageVersion = ioc->spi_data.sdp0version;
2506 hdr.PageLength = data_sz;
2507 hdr.PageNumber = 0;
2508 hdr.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE;
2509
2510 cfg.hdr = &hdr;
2511 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
2512 cfg.dir = 0;
2513 cfg.timeout = 0;
2514 cfg.physAddr = page_dma;
2515
2516 cfg.pageAddr = (karg.hdr.channel << 8) | karg.hdr.id;
2517
2518 if ((rc = mpt_config(ioc, &cfg)) == 0) {
2519 np = le32_to_cpu(pg0_alloc->NegotiatedParameters);
2520 karg.negotiated_width = np & MPI_SCSIDEVPAGE0_NP_WIDE ?
2521 HP_BUS_WIDTH_16 : HP_BUS_WIDTH_8;
2522
2523 if (np & MPI_SCSIDEVPAGE0_NP_NEG_SYNC_OFFSET_MASK) {
2524 tmp = (np & MPI_SCSIDEVPAGE0_NP_NEG_SYNC_PERIOD_MASK) >> 8;
2525 if (tmp < 0x09)
2526 karg.negotiated_speed = HP_DEV_SPEED_ULTRA320;
2527 else if (tmp <= 0x09)
2528 karg.negotiated_speed = HP_DEV_SPEED_ULTRA160;
2529 else if (tmp <= 0x0A)
2530 karg.negotiated_speed = HP_DEV_SPEED_ULTRA2;
2531 else if (tmp <= 0x0C)
2532 karg.negotiated_speed = HP_DEV_SPEED_ULTRA;
2533 else if (tmp <= 0x25)
2534 karg.negotiated_speed = HP_DEV_SPEED_FAST;
2535 else
2536 karg.negotiated_speed = HP_DEV_SPEED_ASYNC;
2537 } else
2538 karg.negotiated_speed = HP_DEV_SPEED_ASYNC;
2539 }
2540
2541 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) pg0_alloc, page_dma);
2542 }
2543
2544 /* Set defaults
2545 */
2546 karg.message_rejects = -1;
2547 karg.phase_errors = -1;
2548 karg.parity_errors = -1;
2549 karg.select_timeouts = -1;
2550
2551 /* Get the target error parameters
2552 */
2553 hdr.PageVersion = 0;
2554 hdr.PageLength = 0;
2555 hdr.PageNumber = 3;
2556 hdr.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE;
2557
2558 cfg.hdr = &hdr;
2559 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
2560 cfg.dir = 0;
2561 cfg.timeout = 0;
2562 cfg.physAddr = -1;
2563 if ((mpt_config(ioc, &cfg) == 0) && (cfg.hdr->PageLength > 0)) {
2564 /* Issue the second config page request */
2565 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
2566 data_sz = (int) cfg.hdr->PageLength * 4;
2567 pg3_alloc = (SCSIDevicePage3_t *) pci_alloc_consistent(
2568 ioc->pcidev, data_sz, &page_dma);
2569 if (pg3_alloc) {
2570 cfg.physAddr = page_dma;
2571 cfg.pageAddr = (karg.hdr.channel << 8) | karg.hdr.id;
2572 if ((rc = mpt_config(ioc, &cfg)) == 0) {
2573 karg.message_rejects = (u32) le16_to_cpu(pg3_alloc->MsgRejectCount);
2574 karg.phase_errors = (u32) le16_to_cpu(pg3_alloc->PhaseErrorCount);
2575 karg.parity_errors = (u32) le16_to_cpu(pg3_alloc->ParityErrorCount);
2576 }
2577 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) pg3_alloc, page_dma);
2578 }
2579 }
2580 hd = (MPT_SCSI_HOST *) ioc->sh->hostdata;
2581 if (hd != NULL)
2582 karg.select_timeouts = hd->sel_timeout[karg.hdr.id];
2583
2584 /* Copy the data from kernel memory to user memory
2585 */
2586 if (copy_to_user((char __user *)arg, &karg, sizeof(hp_target_info_t))) {
2587 printk(KERN_ERR "%s@%d::mptctl_hp_target_info - "
2588 "Unable to write out mpt_ioctl_targetinfo struct @ %p\n",
2589 __FILE__, __LINE__, uarg);
2590 return -EFAULT;
2591 }
2592
2593 return 0;
2594 }
2595
2596 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2597
2598 static struct file_operations mptctl_fops = {
2599 .owner = THIS_MODULE,
2600 .llseek = no_llseek,
2601 .unlocked_ioctl = mptctl_ioctl,
2602 #ifdef CONFIG_COMPAT
2603 .compat_ioctl = compat_mpctl_ioctl,
2604 #endif
2605 };
2606
2607 static struct miscdevice mptctl_miscdev = {
2608 MPT_MINOR,
2609 MYNAM,
2610 &mptctl_fops
2611 };
2612
2613 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2614
2615 #ifdef CONFIG_COMPAT
2616
2617 #include <linux/ioctl32.h>
2618
2619 static int
2620 compat_mptfwxfer_ioctl(struct file *filp, unsigned int cmd,
2621 unsigned long arg)
2622 {
2623 struct mpt_fw_xfer32 kfw32;
2624 struct mpt_fw_xfer kfw;
2625 MPT_ADAPTER *iocp = NULL;
2626 int iocnum, iocnumX;
2627 int nonblock = (filp->f_flags & O_NONBLOCK);
2628 int ret;
2629
2630 dctlprintk((KERN_INFO MYNAM "::compat_mptfwxfer_ioctl() called\n"));
2631
2632 if (copy_from_user(&kfw32, (char __user *)arg, sizeof(kfw32)))
2633 return -EFAULT;
2634
2635 /* Verify intended MPT adapter */
2636 iocnumX = kfw32.iocnum & 0xFF;
2637 if (((iocnum = mpt_verify_adapter(iocnumX, &iocp)) < 0) ||
2638 (iocp == NULL)) {
2639 dctlprintk((KERN_ERR MYNAM "::compat_mptfwxfer_ioctl @%d - ioc%d not found!\n",
2640 __LINE__, iocnumX));
2641 return -ENODEV;
2642 }
2643
2644 if ((ret = mptctl_syscall_down(iocp, nonblock)) != 0)
2645 return ret;
2646
2647 kfw.iocnum = iocnum;
2648 kfw.fwlen = kfw32.fwlen;
2649 kfw.bufp = compat_ptr(kfw32.bufp);
2650
2651 ret = mptctl_do_fw_download(kfw.iocnum, kfw.bufp, kfw.fwlen);
2652
2653 up(&iocp->ioctl->sem_ioc);
2654
2655 return ret;
2656 }
2657
2658 static int
2659 compat_mpt_command(struct file *filp, unsigned int cmd,
2660 unsigned long arg)
2661 {
2662 struct mpt_ioctl_command32 karg32;
2663 struct mpt_ioctl_command32 __user *uarg = (struct mpt_ioctl_command32 __user *) arg;
2664 struct mpt_ioctl_command karg;
2665 MPT_ADAPTER *iocp = NULL;
2666 int iocnum, iocnumX;
2667 int nonblock = (filp->f_flags & O_NONBLOCK);
2668 int ret;
2669
2670 dctlprintk((KERN_INFO MYNAM "::compat_mpt_command() called\n"));
2671
2672 if (copy_from_user(&karg32, (char __user *)arg, sizeof(karg32)))
2673 return -EFAULT;
2674
2675 /* Verify intended MPT adapter */
2676 iocnumX = karg32.hdr.iocnum & 0xFF;
2677 if (((iocnum = mpt_verify_adapter(iocnumX, &iocp)) < 0) ||
2678 (iocp == NULL)) {
2679 dctlprintk((KERN_ERR MYNAM "::compat_mpt_command @%d - ioc%d not found!\n",
2680 __LINE__, iocnumX));
2681 return -ENODEV;
2682 }
2683
2684 if ((ret = mptctl_syscall_down(iocp, nonblock)) != 0)
2685 return ret;
2686
2687 /* Copy data to karg */
2688 karg.hdr.iocnum = karg32.hdr.iocnum;
2689 karg.hdr.port = karg32.hdr.port;
2690 karg.timeout = karg32.timeout;
2691 karg.maxReplyBytes = karg32.maxReplyBytes;
2692
2693 karg.dataInSize = karg32.dataInSize;
2694 karg.dataOutSize = karg32.dataOutSize;
2695 karg.maxSenseBytes = karg32.maxSenseBytes;
2696 karg.dataSgeOffset = karg32.dataSgeOffset;
2697
2698 karg.replyFrameBufPtr = (char __user *)(unsigned long)karg32.replyFrameBufPtr;
2699 karg.dataInBufPtr = (char __user *)(unsigned long)karg32.dataInBufPtr;
2700 karg.dataOutBufPtr = (char __user *)(unsigned long)karg32.dataOutBufPtr;
2701 karg.senseDataPtr = (char __user *)(unsigned long)karg32.senseDataPtr;
2702
2703 /* Pass new structure to do_mpt_command
2704 */
2705 ret = mptctl_do_mpt_command (karg, &uarg->MF);
2706
2707 up(&iocp->ioctl->sem_ioc);
2708
2709 return ret;
2710 }
2711
2712 static long compat_mpctl_ioctl(struct file *f, unsigned int cmd, unsigned long arg)
2713 {
2714 long ret;
2715 lock_kernel();
2716 switch (cmd) {
2717 case MPTIOCINFO:
2718 case MPTIOCINFO1:
2719 case MPTIOCINFO2:
2720 case MPTTARGETINFO:
2721 case MPTEVENTQUERY:
2722 case MPTEVENTENABLE:
2723 case MPTEVENTREPORT:
2724 case MPTHARDRESET:
2725 case HP_GETHOSTINFO:
2726 case HP_GETTARGETINFO:
2727 case MPTTEST:
2728 ret = __mptctl_ioctl(f, cmd, arg);
2729 break;
2730 case MPTCOMMAND32:
2731 ret = compat_mpt_command(f, cmd, arg);
2732 break;
2733 case MPTFWDOWNLOAD32:
2734 ret = compat_mptfwxfer_ioctl(f, cmd, arg);
2735 break;
2736 default:
2737 ret = -ENOIOCTLCMD;
2738 break;
2739 }
2740 unlock_kernel();
2741 return ret;
2742 }
2743
2744 #endif
2745
2746
2747 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2748 /*
2749 * mptctl_probe - Installs ioctl devices per bus.
2750 * @pdev: Pointer to pci_dev structure
2751 *
2752 * Returns 0 for success, non-zero for failure.
2753 *
2754 */
2755
2756 static int
2757 mptctl_probe(struct pci_dev *pdev, const struct pci_device_id *id)
2758 {
2759 int err;
2760 int sz;
2761 u8 *mem;
2762 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
2763
2764 /*
2765 * Allocate and inite a MPT_IOCTL structure
2766 */
2767 sz = sizeof (MPT_IOCTL);
2768 mem = kmalloc(sz, GFP_KERNEL);
2769 if (mem == NULL) {
2770 err = -ENOMEM;
2771 goto out_fail;
2772 }
2773
2774 memset(mem, 0, sz);
2775 ioc->ioctl = (MPT_IOCTL *) mem;
2776 ioc->ioctl->ioc = ioc;
2777 sema_init(&ioc->ioctl->sem_ioc, 1);
2778 return 0;
2779
2780 out_fail:
2781
2782 mptctl_remove(pdev);
2783 return err;
2784 }
2785
2786 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2787 /*
2788 * mptctl_remove - Removed ioctl devices
2789 * @pdev: Pointer to pci_dev structure
2790 *
2791 *
2792 */
2793 static void
2794 mptctl_remove(struct pci_dev *pdev)
2795 {
2796 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
2797
2798 kfree ( ioc->ioctl );
2799 }
2800
2801 static struct mpt_pci_driver mptctl_driver = {
2802 .probe = mptctl_probe,
2803 .remove = mptctl_remove,
2804 };
2805
2806 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2807 static int __init mptctl_init(void)
2808 {
2809 int err;
2810 int where = 1;
2811
2812 show_mptmod_ver(my_NAME, my_VERSION);
2813
2814 if(mpt_device_driver_register(&mptctl_driver,
2815 MPTCTL_DRIVER) != 0 ) {
2816 dprintk((KERN_INFO MYNAM
2817 ": failed to register dd callbacks\n"));
2818 }
2819
2820 /* Register this device */
2821 err = misc_register(&mptctl_miscdev);
2822 if (err < 0) {
2823 printk(KERN_ERR MYNAM ": Can't register misc device [minor=%d].\n", MPT_MINOR);
2824 goto out_fail;
2825 }
2826 printk(KERN_INFO MYNAM ": Registered with Fusion MPT base driver\n");
2827 printk(KERN_INFO MYNAM ": /dev/%s @ (major,minor=%d,%d)\n",
2828 mptctl_miscdev.name, MISC_MAJOR, mptctl_miscdev.minor);
2829
2830 /*
2831 * Install our handler
2832 */
2833 ++where;
2834 if ((mptctl_id = mpt_register(mptctl_reply, MPTCTL_DRIVER)) < 0) {
2835 printk(KERN_ERR MYNAM ": ERROR: Failed to register with Fusion MPT base driver\n");
2836 misc_deregister(&mptctl_miscdev);
2837 err = -EBUSY;
2838 goto out_fail;
2839 }
2840
2841 if (mpt_reset_register(mptctl_id, mptctl_ioc_reset) == 0) {
2842 dprintk((KERN_INFO MYNAM ": Registered for IOC reset notifications\n"));
2843 } else {
2844 /* FIXME! */
2845 }
2846
2847 return 0;
2848
2849 out_fail:
2850
2851 mpt_device_driver_deregister(MPTCTL_DRIVER);
2852
2853 return err;
2854 }
2855
2856 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2857 static void mptctl_exit(void)
2858 {
2859 misc_deregister(&mptctl_miscdev);
2860 printk(KERN_INFO MYNAM ": Deregistered /dev/%s @ (major,minor=%d,%d)\n",
2861 mptctl_miscdev.name, MISC_MAJOR, mptctl_miscdev.minor);
2862
2863 /* De-register reset handler from base module */
2864 mpt_reset_deregister(mptctl_id);
2865 dprintk((KERN_INFO MYNAM ": Deregistered for IOC reset notifications\n"));
2866
2867 /* De-register callback handler from base module */
2868 mpt_deregister(mptctl_id);
2869 printk(KERN_INFO MYNAM ": Deregistered from Fusion MPT base driver\n");
2870
2871 mpt_device_driver_deregister(MPTCTL_DRIVER);
2872
2873 }
2874
2875 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2876
2877 module_init(mptctl_init);
2878 module_exit(mptctl_exit);
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