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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
[cris-mirror.git] / drivers / message / fusion / mptctl.c
blob4470630dd54552032a3d92dc73c101289ab62d41
1 /*
2 * linux/drivers/message/fusion/mptctl.c
3 * mpt Ioctl driver.
4 * For use with LSI PCI chip/adapters
5 * running LSI Fusion MPT (Message Passing Technology) firmware.
6 *
7 * Copyright (c) 1999-2008 LSI Corporation
8 * (mailto:DL-MPTFusionLinux@lsi.com)
9 *
10 */
11 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
12 /*
13 This program is free software; you can redistribute it and/or modify
14 it under the terms of the GNU General Public License as published by
15 the Free Software Foundation; version 2 of the License.
16
17 This program is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 GNU General Public License for more details.
21
22 NO WARRANTY
23 THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
24 CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
25 LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
26 MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
27 solely responsible for determining the appropriateness of using and
28 distributing the Program and assumes all risks associated with its
29 exercise of rights under this Agreement, including but not limited to
30 the risks and costs of program errors, damage to or loss of data,
31 programs or equipment, and unavailability or interruption of operations.
32
33 DISCLAIMER OF LIABILITY
34 NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
35 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36 DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
37 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
38 TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
39 USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
40 HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
41
42 You should have received a copy of the GNU General Public License
43 along with this program; if not, write to the Free Software
44 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
45 */
46 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
47
48 #include <linux/kernel.h>
49 #include <linux/module.h>
50 #include <linux/errno.h>
51 #include <linux/init.h>
52 #include <linux/slab.h>
53 #include <linux/types.h>
54 #include <linux/pci.h>
55 #include <linux/delay.h> /* for mdelay */
56 #include <linux/miscdevice.h>
57 #include <linux/mutex.h>
58 #include <linux/compat.h>
59
60 #include <asm/io.h>
61 #include <linux/uaccess.h>
62
63 #include <scsi/scsi.h>
64 #include <scsi/scsi_cmnd.h>
65 #include <scsi/scsi_device.h>
66 #include <scsi/scsi_host.h>
67 #include <scsi/scsi_tcq.h>
68
69 #define COPYRIGHT "Copyright (c) 1999-2008 LSI Corporation"
70 #define MODULEAUTHOR "LSI Corporation"
71 #include "mptbase.h"
72 #include "mptctl.h"
73
74 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
75 #define my_NAME "Fusion MPT misc device (ioctl) driver"
76 #define my_VERSION MPT_LINUX_VERSION_COMMON
77 #define MYNAM "mptctl"
78
79 MODULE_AUTHOR(MODULEAUTHOR);
80 MODULE_DESCRIPTION(my_NAME);
81 MODULE_LICENSE("GPL");
82 MODULE_VERSION(my_VERSION);
83
84 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
85
86 static DEFINE_MUTEX(mpctl_mutex);
87 static u8 mptctl_id = MPT_MAX_PROTOCOL_DRIVERS;
88 static u8 mptctl_taskmgmt_id = MPT_MAX_PROTOCOL_DRIVERS;
89
90 static DECLARE_WAIT_QUEUE_HEAD ( mptctl_wait );
91
92 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
93
94 struct buflist {
95 u8 *kptr;
96 int len;
97 };
98
99 /*
100 * Function prototypes. Called from OS entry point mptctl_ioctl.
101 * arg contents specific to function.
102 */
103 static int mptctl_fw_download(unsigned long arg);
104 static int mptctl_getiocinfo(unsigned long arg, unsigned int cmd);
105 static int mptctl_gettargetinfo(unsigned long arg);
106 static int mptctl_readtest(unsigned long arg);
107 static int mptctl_mpt_command(unsigned long arg);
108 static int mptctl_eventquery(unsigned long arg);
109 static int mptctl_eventenable(unsigned long arg);
110 static int mptctl_eventreport(unsigned long arg);
111 static int mptctl_replace_fw(unsigned long arg);
112
113 static int mptctl_do_reset(unsigned long arg);
114 static int mptctl_hp_hostinfo(unsigned long arg, unsigned int cmd);
115 static int mptctl_hp_targetinfo(unsigned long arg);
116
117 static int mptctl_probe(struct pci_dev *, const struct pci_device_id *);
118 static void mptctl_remove(struct pci_dev *);
119
120 #ifdef CONFIG_COMPAT
121 static long compat_mpctl_ioctl(struct file *f, unsigned cmd, unsigned long arg);
122 #endif
123 /*
124 * Private function calls.
125 */
126 static int mptctl_do_mpt_command(struct mpt_ioctl_command karg, void __user *mfPtr);
127 static int mptctl_do_fw_download(int ioc, char __user *ufwbuf, size_t fwlen);
128 static MptSge_t *kbuf_alloc_2_sgl(int bytes, u32 dir, int sge_offset, int *frags,
129 struct buflist **blp, dma_addr_t *sglbuf_dma, MPT_ADAPTER *ioc);
130 static void kfree_sgl(MptSge_t *sgl, dma_addr_t sgl_dma,
131 struct buflist *buflist, MPT_ADAPTER *ioc);
132
133 /*
134 * Reset Handler cleanup function
135 */
136 static int mptctl_ioc_reset(MPT_ADAPTER *ioc, int reset_phase);
137
138 /*
139 * Event Handler function
140 */
141 static int mptctl_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply);
142 static struct fasync_struct *async_queue=NULL;
143
144 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
145 /*
146 * Scatter gather list (SGL) sizes and limits...
147 */
148 //#define MAX_SCSI_FRAGS 9
149 #define MAX_FRAGS_SPILL1 9
150 #define MAX_FRAGS_SPILL2 15
151 #define FRAGS_PER_BUCKET (MAX_FRAGS_SPILL2 + 1)
152
153 //#define MAX_CHAIN_FRAGS 64
154 //#define MAX_CHAIN_FRAGS (15+15+15+16)
155 #define MAX_CHAIN_FRAGS (4 * MAX_FRAGS_SPILL2 + 1)
156
157 // Define max sg LIST bytes ( == (#frags + #chains) * 8 bytes each)
158 // Works out to: 592d bytes! (9+1)*8 + 4*(15+1)*8
159 // ^----------------- 80 + 512
160 #define MAX_SGL_BYTES ((MAX_FRAGS_SPILL1 + 1 + (4 * FRAGS_PER_BUCKET)) * 8)
161
162 /* linux only seems to ever give 128kB MAX contiguous (GFP_USER) mem bytes */
163 #define MAX_KMALLOC_SZ (128*1024)
164
165 #define MPT_IOCTL_DEFAULT_TIMEOUT 10 /* Default timeout value (seconds) */
166
167 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
168 /**
169 * mptctl_syscall_down - Down the MPT adapter syscall semaphore.
170 * @ioc: Pointer to MPT adapter
171 * @nonblock: boolean, non-zero if O_NONBLOCK is set
172 *
173 * All of the ioctl commands can potentially sleep, which is illegal
174 * with a spinlock held, thus we perform mutual exclusion here.
175 *
176 * Returns negative errno on error, or zero for success.
177 */
178 static inline int
179 mptctl_syscall_down(MPT_ADAPTER *ioc, int nonblock)
180 {
181 int rc = 0;
182
183 if (nonblock) {
184 if (!mutex_trylock(&ioc->ioctl_cmds.mutex))
185 rc = -EAGAIN;
186 } else {
187 if (mutex_lock_interruptible(&ioc->ioctl_cmds.mutex))
188 rc = -ERESTARTSYS;
189 }
190 return rc;
191 }
192
193 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
194 /*
195 * This is the callback for any message we have posted. The message itself
196 * will be returned to the message pool when we return from the IRQ
197 *
198 * This runs in irq context so be short and sweet.
199 */
200 static int
201 mptctl_reply(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req, MPT_FRAME_HDR *reply)
202 {
203 char *sense_data;
204 int req_index;
205 int sz;
206
207 if (!req)
208 return 0;
209
210 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "completing mpi function "
211 "(0x%02X), req=%p, reply=%p\n", ioc->name, req->u.hdr.Function,
212 req, reply));
213
214 /*
215 * Handling continuation of the same reply. Processing the first
216 * reply, and eating the other replys that come later.
217 */
218 if (ioc->ioctl_cmds.msg_context != req->u.hdr.MsgContext)
219 goto out_continuation;
220
221 ioc->ioctl_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD;
222
223 if (!reply)
224 goto out;
225
226 ioc->ioctl_cmds.status |= MPT_MGMT_STATUS_RF_VALID;
227 sz = min(ioc->reply_sz, 4*reply->u.reply.MsgLength);
228 memcpy(ioc->ioctl_cmds.reply, reply, sz);
229
230 if (reply->u.reply.IOCStatus || reply->u.reply.IOCLogInfo)
231 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT
232 "iocstatus (0x%04X), loginfo (0x%08X)\n", ioc->name,
233 le16_to_cpu(reply->u.reply.IOCStatus),
234 le32_to_cpu(reply->u.reply.IOCLogInfo)));
235
236 if ((req->u.hdr.Function == MPI_FUNCTION_SCSI_IO_REQUEST) ||
237 (req->u.hdr.Function ==
238 MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) {
239
240 if (reply->u.sreply.SCSIStatus || reply->u.sreply.SCSIState)
241 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT
242 "scsi_status (0x%02x), scsi_state (0x%02x), "
243 "tag = (0x%04x), transfer_count (0x%08x)\n", ioc->name,
244 reply->u.sreply.SCSIStatus,
245 reply->u.sreply.SCSIState,
246 le16_to_cpu(reply->u.sreply.TaskTag),
247 le32_to_cpu(reply->u.sreply.TransferCount)));
248
249 if (reply->u.sreply.SCSIState &
250 MPI_SCSI_STATE_AUTOSENSE_VALID) {
251 sz = req->u.scsireq.SenseBufferLength;
252 req_index =
253 le16_to_cpu(req->u.frame.hwhdr.msgctxu.fld.req_idx);
254 sense_data = ((u8 *)ioc->sense_buf_pool +
255 (req_index * MPT_SENSE_BUFFER_ALLOC));
256 memcpy(ioc->ioctl_cmds.sense, sense_data, sz);
257 ioc->ioctl_cmds.status |= MPT_MGMT_STATUS_SENSE_VALID;
258 }
259 }
260
261 out:
262 /* We are done, issue wake up
263 */
264 if (ioc->ioctl_cmds.status & MPT_MGMT_STATUS_PENDING) {
265 if (req->u.hdr.Function == MPI_FUNCTION_SCSI_TASK_MGMT) {
266 mpt_clear_taskmgmt_in_progress_flag(ioc);
267 ioc->ioctl_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
268 complete(&ioc->ioctl_cmds.done);
269 if (ioc->bus_type == SAS)
270 ioc->schedule_target_reset(ioc);
271 } else {
272 ioc->ioctl_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
273 complete(&ioc->ioctl_cmds.done);
274 }
275 }
276
277 out_continuation:
278 if (reply && (reply->u.reply.MsgFlags &
279 MPI_MSGFLAGS_CONTINUATION_REPLY))
280 return 0;
281 return 1;
282 }
283
284
285 static int
286 mptctl_taskmgmt_reply(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
287 {
288 if (!mf)
289 return 0;
290
291 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
292 "TaskMgmt completed (mf=%p, mr=%p)\n",
293 ioc->name, mf, mr));
294
295 ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD;
296
297 if (!mr)
298 goto out;
299
300 ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_RF_VALID;
301 memcpy(ioc->taskmgmt_cmds.reply, mr,
302 min(MPT_DEFAULT_FRAME_SIZE, 4 * mr->u.reply.MsgLength));
303 out:
304 if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_PENDING) {
305 mpt_clear_taskmgmt_in_progress_flag(ioc);
306 ioc->taskmgmt_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
307 complete(&ioc->taskmgmt_cmds.done);
308 if (ioc->bus_type == SAS)
309 ioc->schedule_target_reset(ioc);
310 return 1;
311 }
312 return 0;
313 }
314
315 static int
316 mptctl_do_taskmgmt(MPT_ADAPTER *ioc, u8 tm_type, u8 bus_id, u8 target_id)
317 {
318 MPT_FRAME_HDR *mf;
319 SCSITaskMgmt_t *pScsiTm;
320 SCSITaskMgmtReply_t *pScsiTmReply;
321 int ii;
322 int retval;
323 unsigned long timeout;
324 unsigned long time_count;
325 u16 iocstatus;
326
327
328 mutex_lock(&ioc->taskmgmt_cmds.mutex);
329 if (mpt_set_taskmgmt_in_progress_flag(ioc) != 0) {
330 mutex_unlock(&ioc->taskmgmt_cmds.mutex);
331 return -EPERM;
332 }
333
334 retval = 0;
335
336 mf = mpt_get_msg_frame(mptctl_taskmgmt_id, ioc);
337 if (mf == NULL) {
338 dtmprintk(ioc,
339 printk(MYIOC_s_WARN_FMT "TaskMgmt, no msg frames!!\n",
340 ioc->name));
341 mpt_clear_taskmgmt_in_progress_flag(ioc);
342 retval = -ENOMEM;
343 goto tm_done;
344 }
345
346 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt request (mf=%p)\n",
347 ioc->name, mf));
348
349 pScsiTm = (SCSITaskMgmt_t *) mf;
350 memset(pScsiTm, 0, sizeof(SCSITaskMgmt_t));
351 pScsiTm->Function = MPI_FUNCTION_SCSI_TASK_MGMT;
352 pScsiTm->TaskType = tm_type;
353 if ((tm_type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS) &&
354 (ioc->bus_type == FC))
355 pScsiTm->MsgFlags =
356 MPI_SCSITASKMGMT_MSGFLAGS_LIPRESET_RESET_OPTION;
357 pScsiTm->TargetID = target_id;
358 pScsiTm->Bus = bus_id;
359 pScsiTm->ChainOffset = 0;
360 pScsiTm->Reserved = 0;
361 pScsiTm->Reserved1 = 0;
362 pScsiTm->TaskMsgContext = 0;
363 for (ii= 0; ii < 8; ii++)
364 pScsiTm->LUN[ii] = 0;
365 for (ii=0; ii < 7; ii++)
366 pScsiTm->Reserved2[ii] = 0;
367
368 switch (ioc->bus_type) {
369 case FC:
370 timeout = 40;
371 break;
372 case SAS:
373 timeout = 30;
374 break;
375 case SPI:
376 default:
377 timeout = 10;
378 break;
379 }
380
381 dtmprintk(ioc,
382 printk(MYIOC_s_DEBUG_FMT "TaskMgmt type=%d timeout=%ld\n",
383 ioc->name, tm_type, timeout));
384
385 INITIALIZE_MGMT_STATUS(ioc->taskmgmt_cmds.status)
386 time_count = jiffies;
387 if ((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) &&
388 (ioc->facts.MsgVersion >= MPI_VERSION_01_05))
389 mpt_put_msg_frame_hi_pri(mptctl_taskmgmt_id, ioc, mf);
390 else {
391 retval = mpt_send_handshake_request(mptctl_taskmgmt_id, ioc,
392 sizeof(SCSITaskMgmt_t), (u32 *)pScsiTm, CAN_SLEEP);
393 if (retval != 0) {
394 dfailprintk(ioc,
395 printk(MYIOC_s_ERR_FMT
396 "TaskMgmt send_handshake FAILED!"
397 " (ioc %p, mf %p, rc=%d) \n", ioc->name,
398 ioc, mf, retval));
399 mpt_free_msg_frame(ioc, mf);
400 mpt_clear_taskmgmt_in_progress_flag(ioc);
401 goto tm_done;
402 }
403 }
404
405 /* Now wait for the command to complete */
406 ii = wait_for_completion_timeout(&ioc->taskmgmt_cmds.done, timeout*HZ);
407
408 if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
409 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
410 "TaskMgmt failed\n", ioc->name));
411 mpt_free_msg_frame(ioc, mf);
412 mpt_clear_taskmgmt_in_progress_flag(ioc);
413 if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET)
414 retval = 0;
415 else
416 retval = -1; /* return failure */
417 goto tm_done;
418 }
419
420 if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_RF_VALID)) {
421 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
422 "TaskMgmt failed\n", ioc->name));
423 retval = -1; /* return failure */
424 goto tm_done;
425 }
426
427 pScsiTmReply = (SCSITaskMgmtReply_t *) ioc->taskmgmt_cmds.reply;
428 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
429 "TaskMgmt fw_channel = %d, fw_id = %d, task_type=0x%02X, "
430 "iocstatus=0x%04X\n\tloginfo=0x%08X, response_code=0x%02X, "
431 "term_cmnds=%d\n", ioc->name, pScsiTmReply->Bus,
432 pScsiTmReply->TargetID, tm_type,
433 le16_to_cpu(pScsiTmReply->IOCStatus),
434 le32_to_cpu(pScsiTmReply->IOCLogInfo),
435 pScsiTmReply->ResponseCode,
436 le32_to_cpu(pScsiTmReply->TerminationCount)));
437
438 iocstatus = le16_to_cpu(pScsiTmReply->IOCStatus) & MPI_IOCSTATUS_MASK;
439
440 if (iocstatus == MPI_IOCSTATUS_SCSI_TASK_TERMINATED ||
441 iocstatus == MPI_IOCSTATUS_SCSI_IOC_TERMINATED ||
442 iocstatus == MPI_IOCSTATUS_SUCCESS)
443 retval = 0;
444 else {
445 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
446 "TaskMgmt failed\n", ioc->name));
447 retval = -1; /* return failure */
448 }
449
450 tm_done:
451 mutex_unlock(&ioc->taskmgmt_cmds.mutex);
452 CLEAR_MGMT_STATUS(ioc->taskmgmt_cmds.status)
453 return retval;
454 }
455
456 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
457 /* mptctl_timeout_expired
458 *
459 * Expecting an interrupt, however timed out.
460 *
461 */
462 static void
463 mptctl_timeout_expired(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf)
464 {
465 unsigned long flags;
466 int ret_val = -1;
467 SCSIIORequest_t *scsi_req = (SCSIIORequest_t *) mf;
468 u8 function = mf->u.hdr.Function;
469
470 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT ": %s\n",
471 ioc->name, __func__));
472
473 if (mpt_fwfault_debug)
474 mpt_halt_firmware(ioc);
475
476 spin_lock_irqsave(&ioc->taskmgmt_lock, flags);
477 if (ioc->ioc_reset_in_progress) {
478 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
479 CLEAR_MGMT_PENDING_STATUS(ioc->ioctl_cmds.status)
480 mpt_free_msg_frame(ioc, mf);
481 return;
482 }
483 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
484
485
486 CLEAR_MGMT_PENDING_STATUS(ioc->ioctl_cmds.status)
487
488 if (ioc->bus_type == SAS) {
489 if (function == MPI_FUNCTION_SCSI_IO_REQUEST)
490 ret_val = mptctl_do_taskmgmt(ioc,
491 MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET,
492 scsi_req->Bus, scsi_req->TargetID);
493 else if (function == MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)
494 ret_val = mptctl_do_taskmgmt(ioc,
495 MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
496 scsi_req->Bus, 0);
497 if (!ret_val)
498 return;
499 } else {
500 if ((function == MPI_FUNCTION_SCSI_IO_REQUEST) ||
501 (function == MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH))
502 ret_val = mptctl_do_taskmgmt(ioc,
503 MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
504 scsi_req->Bus, 0);
505 if (!ret_val)
506 return;
507 }
508
509 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Calling Reset! \n",
510 ioc->name));
511 mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
512 mpt_free_msg_frame(ioc, mf);
513 }
514
515
516 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
517 /* mptctl_ioc_reset
518 *
519 * Clean-up functionality. Used only if there has been a
520 * reload of the FW due.
521 *
522 */
523 static int
524 mptctl_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
525 {
526 switch(reset_phase) {
527 case MPT_IOC_SETUP_RESET:
528 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
529 "%s: MPT_IOC_SETUP_RESET\n", ioc->name, __func__));
530 break;
531 case MPT_IOC_PRE_RESET:
532 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
533 "%s: MPT_IOC_PRE_RESET\n", ioc->name, __func__));
534 break;
535 case MPT_IOC_POST_RESET:
536 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
537 "%s: MPT_IOC_POST_RESET\n", ioc->name, __func__));
538 if (ioc->ioctl_cmds.status & MPT_MGMT_STATUS_PENDING) {
539 ioc->ioctl_cmds.status |= MPT_MGMT_STATUS_DID_IOCRESET;
540 complete(&ioc->ioctl_cmds.done);
541 }
542 break;
543 default:
544 break;
545 }
546
547 return 1;
548 }
549
550 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
551 /* ASYNC Event Notification Support */
552 static int
553 mptctl_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
554 {
555 u8 event;
556
557 event = le32_to_cpu(pEvReply->Event) & 0xFF;
558
559 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s() called\n",
560 ioc->name, __func__));
561 if(async_queue == NULL)
562 return 1;
563
564 /* Raise SIGIO for persistent events.
565 * TODO - this define is not in MPI spec yet,
566 * but they plan to set it to 0x21
567 */
568 if (event == 0x21 ) {
569 ioc->aen_event_read_flag=1;
570 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Raised SIGIO to application\n",
571 ioc->name));
572 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT
573 "Raised SIGIO to application\n", ioc->name));
574 kill_fasync(&async_queue, SIGIO, POLL_IN);
575 return 1;
576 }
577
578 /* This flag is set after SIGIO was raised, and
579 * remains set until the application has read
580 * the event log via ioctl=MPTEVENTREPORT
581 */
582 if(ioc->aen_event_read_flag)
583 return 1;
584
585 /* Signal only for the events that are
586 * requested for by the application
587 */
588 if (ioc->events && (ioc->eventTypes & ( 1 << event))) {
589 ioc->aen_event_read_flag=1;
590 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT
591 "Raised SIGIO to application\n", ioc->name));
592 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT
593 "Raised SIGIO to application\n", ioc->name));
594 kill_fasync(&async_queue, SIGIO, POLL_IN);
595 }
596 return 1;
597 }
598
599 static int
600 mptctl_fasync(int fd, struct file *filep, int mode)
601 {
602 MPT_ADAPTER *ioc;
603 int ret;
604
605 mutex_lock(&mpctl_mutex);
606 list_for_each_entry(ioc, &ioc_list, list)
607 ioc->aen_event_read_flag=0;
608
609 ret = fasync_helper(fd, filep, mode, &async_queue);
610 mutex_unlock(&mpctl_mutex);
611 return ret;
612 }
613
614 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
615 /*
616 * MPT ioctl handler
617 * cmd - specify the particular IOCTL command to be issued
618 * arg - data specific to the command. Must not be null.
619 */
620 static long
621 __mptctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
622 {
623 mpt_ioctl_header __user *uhdr = (void __user *) arg;
624 mpt_ioctl_header khdr;
625 int iocnum;
626 unsigned iocnumX;
627 int nonblock = (file->f_flags & O_NONBLOCK);
628 int ret;
629 MPT_ADAPTER *iocp = NULL;
630
631 if (copy_from_user(&khdr, uhdr, sizeof(khdr))) {
632 printk(KERN_ERR MYNAM "%s::mptctl_ioctl() @%d - "
633 "Unable to copy mpt_ioctl_header data @ %p\n",
634 __FILE__, __LINE__, uhdr);
635 return -EFAULT;
636 }
637 ret = -ENXIO; /* (-6) No such device or address */
638
639 /* Verify intended MPT adapter - set iocnum and the adapter
640 * pointer (iocp)
641 */
642 iocnumX = khdr.iocnum & 0xFF;
643 if (((iocnum = mpt_verify_adapter(iocnumX, &iocp)) < 0) ||
644 (iocp == NULL))
645 return -ENODEV;
646
647 if (!iocp->active) {
648 printk(KERN_DEBUG MYNAM "%s::mptctl_ioctl() @%d - Controller disabled.\n",
649 __FILE__, __LINE__);
650 return -EFAULT;
651 }
652
653 /* Handle those commands that are just returning
654 * information stored in the driver.
655 * These commands should never time out and are unaffected
656 * by TM and FW reloads.
657 */
658 if ((cmd & ~IOCSIZE_MASK) == (MPTIOCINFO & ~IOCSIZE_MASK)) {
659 return mptctl_getiocinfo(arg, _IOC_SIZE(cmd));
660 } else if (cmd == MPTTARGETINFO) {
661 return mptctl_gettargetinfo(arg);
662 } else if (cmd == MPTTEST) {
663 return mptctl_readtest(arg);
664 } else if (cmd == MPTEVENTQUERY) {
665 return mptctl_eventquery(arg);
666 } else if (cmd == MPTEVENTENABLE) {
667 return mptctl_eventenable(arg);
668 } else if (cmd == MPTEVENTREPORT) {
669 return mptctl_eventreport(arg);
670 } else if (cmd == MPTFWREPLACE) {
671 return mptctl_replace_fw(arg);
672 }
673
674 /* All of these commands require an interrupt or
675 * are unknown/illegal.
676 */
677 if ((ret = mptctl_syscall_down(iocp, nonblock)) != 0)
678 return ret;
679
680 if (cmd == MPTFWDOWNLOAD)
681 ret = mptctl_fw_download(arg);
682 else if (cmd == MPTCOMMAND)
683 ret = mptctl_mpt_command(arg);
684 else if (cmd == MPTHARDRESET)
685 ret = mptctl_do_reset(arg);
686 else if ((cmd & ~IOCSIZE_MASK) == (HP_GETHOSTINFO & ~IOCSIZE_MASK))
687 ret = mptctl_hp_hostinfo(arg, _IOC_SIZE(cmd));
688 else if (cmd == HP_GETTARGETINFO)
689 ret = mptctl_hp_targetinfo(arg);
690 else
691 ret = -EINVAL;
692
693 mutex_unlock(&iocp->ioctl_cmds.mutex);
694
695 return ret;
696 }
697
698 static long
699 mptctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
700 {
701 long ret;
702 mutex_lock(&mpctl_mutex);
703 ret = __mptctl_ioctl(file, cmd, arg);
704 mutex_unlock(&mpctl_mutex);
705 return ret;
706 }
707
708 static int mptctl_do_reset(unsigned long arg)
709 {
710 struct mpt_ioctl_diag_reset __user *urinfo = (void __user *) arg;
711 struct mpt_ioctl_diag_reset krinfo;
712 MPT_ADAPTER *iocp;
713
714 if (copy_from_user(&krinfo, urinfo, sizeof(struct mpt_ioctl_diag_reset))) {
715 printk(KERN_ERR MYNAM "%s@%d::mptctl_do_reset - "
716 "Unable to copy mpt_ioctl_diag_reset struct @ %p\n",
717 __FILE__, __LINE__, urinfo);
718 return -EFAULT;
719 }
720
721 if (mpt_verify_adapter(krinfo.hdr.iocnum, &iocp) < 0) {
722 printk(KERN_DEBUG MYNAM "%s@%d::mptctl_do_reset - ioc%d not found!\n",
723 __FILE__, __LINE__, krinfo.hdr.iocnum);
724 return -ENODEV; /* (-6) No such device or address */
725 }
726
727 dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT "mptctl_do_reset called.\n",
728 iocp->name));
729
730 if (mpt_HardResetHandler(iocp, CAN_SLEEP) != 0) {
731 printk (MYIOC_s_ERR_FMT "%s@%d::mptctl_do_reset - reset failed.\n",
732 iocp->name, __FILE__, __LINE__);
733 return -1;
734 }
735
736 return 0;
737 }
738
739 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
740 /*
741 * MPT FW download function. Cast the arg into the mpt_fw_xfer structure.
742 * This structure contains: iocnum, firmware length (bytes),
743 * pointer to user space memory where the fw image is stored.
744 *
745 * Outputs: None.
746 * Return: 0 if successful
747 * -EFAULT if data unavailable
748 * -ENXIO if no such device
749 * -EAGAIN if resource problem
750 * -ENOMEM if no memory for SGE
751 * -EMLINK if too many chain buffers required
752 * -EBADRQC if adapter does not support FW download
753 * -EBUSY if adapter is busy
754 * -ENOMSG if FW upload returned bad status
755 */
756 static int
757 mptctl_fw_download(unsigned long arg)
758 {
759 struct mpt_fw_xfer __user *ufwdl = (void __user *) arg;
760 struct mpt_fw_xfer kfwdl;
761
762 if (copy_from_user(&kfwdl, ufwdl, sizeof(struct mpt_fw_xfer))) {
763 printk(KERN_ERR MYNAM "%s@%d::_ioctl_fwdl - "
764 "Unable to copy mpt_fw_xfer struct @ %p\n",
765 __FILE__, __LINE__, ufwdl);
766 return -EFAULT;
767 }
768
769 return mptctl_do_fw_download(kfwdl.iocnum, kfwdl.bufp, kfwdl.fwlen);
770 }
771
772 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
773 /*
774 * FW Download engine.
775 * Outputs: None.
776 * Return: 0 if successful
777 * -EFAULT if data unavailable
778 * -ENXIO if no such device
779 * -EAGAIN if resource problem
780 * -ENOMEM if no memory for SGE
781 * -EMLINK if too many chain buffers required
782 * -EBADRQC if adapter does not support FW download
783 * -EBUSY if adapter is busy
784 * -ENOMSG if FW upload returned bad status
785 */
786 static int
787 mptctl_do_fw_download(int ioc, char __user *ufwbuf, size_t fwlen)
788 {
789 FWDownload_t *dlmsg;
790 MPT_FRAME_HDR *mf;
791 MPT_ADAPTER *iocp;
792 FWDownloadTCSGE_t *ptsge;
793 MptSge_t *sgl, *sgIn;
794 char *sgOut;
795 struct buflist *buflist;
796 struct buflist *bl;
797 dma_addr_t sgl_dma;
798 int ret;
799 int numfrags = 0;
800 int maxfrags;
801 int n = 0;
802 u32 sgdir;
803 u32 nib;
804 int fw_bytes_copied = 0;
805 int i;
806 int sge_offset = 0;
807 u16 iocstat;
808 pFWDownloadReply_t ReplyMsg = NULL;
809 unsigned long timeleft;
810
811 if (mpt_verify_adapter(ioc, &iocp) < 0) {
812 printk(KERN_DEBUG MYNAM "ioctl_fwdl - ioc%d not found!\n",
813 ioc);
814 return -ENODEV; /* (-6) No such device or address */
815 } else {
816
817 /* Valid device. Get a message frame and construct the FW download message.
818 */
819 if ((mf = mpt_get_msg_frame(mptctl_id, iocp)) == NULL)
820 return -EAGAIN;
821 }
822
823 dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT
824 "mptctl_do_fwdl called. mptctl_id = %xh.\n", iocp->name, mptctl_id));
825 dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT "DbG: kfwdl.bufp = %p\n",
826 iocp->name, ufwbuf));
827 dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT "DbG: kfwdl.fwlen = %d\n",
828 iocp->name, (int)fwlen));
829 dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT "DbG: kfwdl.ioc = %04xh\n",
830 iocp->name, ioc));
831
832 dlmsg = (FWDownload_t*) mf;
833 ptsge = (FWDownloadTCSGE_t *) &dlmsg->SGL;
834 sgOut = (char *) (ptsge + 1);
835
836 /*
837 * Construct f/w download request
838 */
839 dlmsg->ImageType = MPI_FW_DOWNLOAD_ITYPE_FW;
840 dlmsg->Reserved = 0;
841 dlmsg->ChainOffset = 0;
842 dlmsg->Function = MPI_FUNCTION_FW_DOWNLOAD;
843 dlmsg->Reserved1[0] = dlmsg->Reserved1[1] = dlmsg->Reserved1[2] = 0;
844 if (iocp->facts.MsgVersion >= MPI_VERSION_01_05)
845 dlmsg->MsgFlags = MPI_FW_DOWNLOAD_MSGFLGS_LAST_SEGMENT;
846 else
847 dlmsg->MsgFlags = 0;
848
849
850 /* Set up the Transaction SGE.
851 */
852 ptsge->Reserved = 0;
853 ptsge->ContextSize = 0;
854 ptsge->DetailsLength = 12;
855 ptsge->Flags = MPI_SGE_FLAGS_TRANSACTION_ELEMENT;
856 ptsge->Reserved_0100_Checksum = 0;
857 ptsge->ImageOffset = 0;
858 ptsge->ImageSize = cpu_to_le32(fwlen);
859
860 /* Add the SGL
861 */
862
863 /*
864 * Need to kmalloc area(s) for holding firmware image bytes.
865 * But we need to do it piece meal, using a proper
866 * scatter gather list (with 128kB MAX hunks).
867 *
868 * A practical limit here might be # of sg hunks that fit into
869 * a single IOC request frame; 12 or 8 (see below), so:
870 * For FC9xx: 12 x 128kB == 1.5 mB (max)
871 * For C1030: 8 x 128kB == 1 mB (max)
872 * We could support chaining, but things get ugly(ier:)
873 *
874 * Set the sge_offset to the start of the sgl (bytes).
875 */
876 sgdir = 0x04000000; /* IOC will READ from sys mem */
877 sge_offset = sizeof(MPIHeader_t) + sizeof(FWDownloadTCSGE_t);
878 if ((sgl = kbuf_alloc_2_sgl(fwlen, sgdir, sge_offset,
879 &numfrags, &buflist, &sgl_dma, iocp)) == NULL)
880 return -ENOMEM;
881
882 /*
883 * We should only need SGL with 2 simple_32bit entries (up to 256 kB)
884 * for FC9xx f/w image, but calculate max number of sge hunks
885 * we can fit into a request frame, and limit ourselves to that.
886 * (currently no chain support)
887 * maxfrags = (Request Size - FWdownload Size ) / Size of 32 bit SGE
888 * Request maxfrags
889 * 128 12
890 * 96 8
891 * 64 4
892 */
893 maxfrags = (iocp->req_sz - sizeof(MPIHeader_t) -
894 sizeof(FWDownloadTCSGE_t))
895 / iocp->SGE_size;
896 if (numfrags > maxfrags) {
897 ret = -EMLINK;
898 goto fwdl_out;
899 }
900
901 dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT "DbG: sgl buffer = %p, sgfrags = %d\n",
902 iocp->name, sgl, numfrags));
903
904 /*
905 * Parse SG list, copying sgl itself,
906 * plus f/w image hunks from user space as we go...
907 */
908 ret = -EFAULT;
909 sgIn = sgl;
910 bl = buflist;
911 for (i=0; i < numfrags; i++) {
912
913 /* Get the SGE type: 0 - TCSGE, 3 - Chain, 1 - Simple SGE
914 * Skip everything but Simple. If simple, copy from
915 * user space into kernel space.
916 * Note: we should not have anything but Simple as
917 * Chain SGE are illegal.
918 */
919 nib = (sgIn->FlagsLength & 0x30000000) >> 28;
920 if (nib == 0 || nib == 3) {
921 ;
922 } else if (sgIn->Address) {
923 iocp->add_sge(sgOut, sgIn->FlagsLength, sgIn->Address);
924 n++;
925 if (copy_from_user(bl->kptr, ufwbuf+fw_bytes_copied, bl->len)) {
926 printk(MYIOC_s_ERR_FMT "%s@%d::_ioctl_fwdl - "
927 "Unable to copy f/w buffer hunk#%d @ %p\n",
928 iocp->name, __FILE__, __LINE__, n, ufwbuf);
929 goto fwdl_out;
930 }
931 fw_bytes_copied += bl->len;
932 }
933 sgIn++;
934 bl++;
935 sgOut += iocp->SGE_size;
936 }
937
938 DBG_DUMP_FW_DOWNLOAD(iocp, (u32 *)mf, numfrags);
939
940 /*
941 * Finally, perform firmware download.
942 */
943 ReplyMsg = NULL;
944 SET_MGMT_MSG_CONTEXT(iocp->ioctl_cmds.msg_context, dlmsg->MsgContext);
945 INITIALIZE_MGMT_STATUS(iocp->ioctl_cmds.status)
946 mpt_put_msg_frame(mptctl_id, iocp, mf);
947
948 /* Now wait for the command to complete */
949 retry_wait:
950 timeleft = wait_for_completion_timeout(&iocp->ioctl_cmds.done, HZ*60);
951 if (!(iocp->ioctl_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
952 ret = -ETIME;
953 printk(MYIOC_s_WARN_FMT "%s: failed\n", iocp->name, __func__);
954 if (iocp->ioctl_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) {
955 mpt_free_msg_frame(iocp, mf);
956 goto fwdl_out;
957 }
958 if (!timeleft) {
959 printk(MYIOC_s_WARN_FMT
960 "FW download timeout, doorbell=0x%08x\n",
961 iocp->name, mpt_GetIocState(iocp, 0));
962 mptctl_timeout_expired(iocp, mf);
963 } else
964 goto retry_wait;
965 goto fwdl_out;
966 }
967
968 if (!(iocp->ioctl_cmds.status & MPT_MGMT_STATUS_RF_VALID)) {
969 printk(MYIOC_s_WARN_FMT "%s: failed\n", iocp->name, __func__);
970 mpt_free_msg_frame(iocp, mf);
971 ret = -ENODATA;
972 goto fwdl_out;
973 }
974
975 if (sgl)
976 kfree_sgl(sgl, sgl_dma, buflist, iocp);
977
978 ReplyMsg = (pFWDownloadReply_t)iocp->ioctl_cmds.reply;
979 iocstat = le16_to_cpu(ReplyMsg->IOCStatus) & MPI_IOCSTATUS_MASK;
980 if (iocstat == MPI_IOCSTATUS_SUCCESS) {
981 printk(MYIOC_s_INFO_FMT "F/W update successful!\n", iocp->name);
982 return 0;
983 } else if (iocstat == MPI_IOCSTATUS_INVALID_FUNCTION) {
984 printk(MYIOC_s_WARN_FMT "Hmmm... F/W download not supported!?!\n",
985 iocp->name);
986 printk(MYIOC_s_WARN_FMT "(time to go bang on somebodies door)\n",
987 iocp->name);
988 return -EBADRQC;
989 } else if (iocstat == MPI_IOCSTATUS_BUSY) {
990 printk(MYIOC_s_WARN_FMT "IOC_BUSY!\n", iocp->name);
991 printk(MYIOC_s_WARN_FMT "(try again later?)\n", iocp->name);
992 return -EBUSY;
993 } else {
994 printk(MYIOC_s_WARN_FMT "ioctl_fwdl() returned [bad] status = %04xh\n",
995 iocp->name, iocstat);
996 printk(MYIOC_s_WARN_FMT "(bad VooDoo)\n", iocp->name);
997 return -ENOMSG;
998 }
999 return 0;
1000
1001 fwdl_out:
1002
1003 CLEAR_MGMT_STATUS(iocp->ioctl_cmds.status);
1004 SET_MGMT_MSG_CONTEXT(iocp->ioctl_cmds.msg_context, 0);
1005 kfree_sgl(sgl, sgl_dma, buflist, iocp);
1006 return ret;
1007 }
1008
1009 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1010 /*
1011 * SGE Allocation routine
1012 *
1013 * Inputs: bytes - number of bytes to be transferred
1014 * sgdir - data direction
1015 * sge_offset - offset (in bytes) from the start of the request
1016 * frame to the first SGE
1017 * ioc - pointer to the mptadapter
1018 * Outputs: frags - number of scatter gather elements
1019 * blp - point to the buflist pointer
1020 * sglbuf_dma - pointer to the (dma) sgl
1021 * Returns: Null if failes
1022 * pointer to the (virtual) sgl if successful.
1023 */
1024 static MptSge_t *
1025 kbuf_alloc_2_sgl(int bytes, u32 sgdir, int sge_offset, int *frags,
1026 struct buflist **blp, dma_addr_t *sglbuf_dma, MPT_ADAPTER *ioc)
1027 {
1028 MptSge_t *sglbuf = NULL; /* pointer to array of SGE */
1029 /* and chain buffers */
1030 struct buflist *buflist = NULL; /* kernel routine */
1031 MptSge_t *sgl;
1032 int numfrags = 0;
1033 int fragcnt = 0;
1034 int alloc_sz = min(bytes,MAX_KMALLOC_SZ); // avoid kernel warning msg!
1035 int bytes_allocd = 0;
1036 int this_alloc;
1037 dma_addr_t pa; // phys addr
1038 int i, buflist_ent;
1039 int sg_spill = MAX_FRAGS_SPILL1;
1040 int dir;
1041
1042 if (bytes < 0)
1043 return NULL;
1044
1045 /* initialization */
1046 *frags = 0;
1047 *blp = NULL;
1048
1049 /* Allocate and initialize an array of kernel
1050 * structures for the SG elements.
1051 */
1052 i = MAX_SGL_BYTES / 8;
1053 buflist = kzalloc(i, GFP_USER);
1054 if (!buflist)
1055 return NULL;
1056 buflist_ent = 0;
1057
1058 /* Allocate a single block of memory to store the sg elements and
1059 * the chain buffers. The calling routine is responsible for
1060 * copying the data in this array into the correct place in the
1061 * request and chain buffers.
1062 */
1063 sglbuf = pci_alloc_consistent(ioc->pcidev, MAX_SGL_BYTES, sglbuf_dma);
1064 if (sglbuf == NULL)
1065 goto free_and_fail;
1066
1067 if (sgdir & 0x04000000)
1068 dir = PCI_DMA_TODEVICE;
1069 else
1070 dir = PCI_DMA_FROMDEVICE;
1071
1072 /* At start:
1073 * sgl = sglbuf = point to beginning of sg buffer
1074 * buflist_ent = 0 = first kernel structure
1075 * sg_spill = number of SGE that can be written before the first
1076 * chain element.
1077 *
1078 */
1079 sgl = sglbuf;
1080 sg_spill = ((ioc->req_sz - sge_offset)/ioc->SGE_size) - 1;
1081 while (bytes_allocd < bytes) {
1082 this_alloc = min(alloc_sz, bytes-bytes_allocd);
1083 buflist[buflist_ent].len = this_alloc;
1084 buflist[buflist_ent].kptr = pci_alloc_consistent(ioc->pcidev,
1085 this_alloc,
1086 &pa);
1087 if (buflist[buflist_ent].kptr == NULL) {
1088 alloc_sz = alloc_sz / 2;
1089 if (alloc_sz == 0) {
1090 printk(MYIOC_s_WARN_FMT "-SG: No can do - "
1091 "not enough memory! :-(\n", ioc->name);
1092 printk(MYIOC_s_WARN_FMT "-SG: (freeing %d frags)\n",
1093 ioc->name, numfrags);
1094 goto free_and_fail;
1095 }
1096 continue;
1097 } else {
1098 dma_addr_t dma_addr;
1099
1100 bytes_allocd += this_alloc;
1101 sgl->FlagsLength = (0x10000000|sgdir|this_alloc);
1102 dma_addr = pci_map_single(ioc->pcidev,
1103 buflist[buflist_ent].kptr, this_alloc, dir);
1104 sgl->Address = dma_addr;
1105
1106 fragcnt++;
1107 numfrags++;
1108 sgl++;
1109 buflist_ent++;
1110 }
1111
1112 if (bytes_allocd >= bytes)
1113 break;
1114
1115 /* Need to chain? */
1116 if (fragcnt == sg_spill) {
1117 printk(MYIOC_s_WARN_FMT
1118 "-SG: No can do - " "Chain required! :-(\n", ioc->name);
1119 printk(MYIOC_s_WARN_FMT "(freeing %d frags)\n", ioc->name, numfrags);
1120 goto free_and_fail;
1121 }
1122
1123 /* overflow check... */
1124 if (numfrags*8 > MAX_SGL_BYTES){
1125 /* GRRRRR... */
1126 printk(MYIOC_s_WARN_FMT "-SG: No can do - "
1127 "too many SG frags! :-(\n", ioc->name);
1128 printk(MYIOC_s_WARN_FMT "-SG: (freeing %d frags)\n",
1129 ioc->name, numfrags);
1130 goto free_and_fail;
1131 }
1132 }
1133
1134 /* Last sge fixup: set LE+eol+eob bits */
1135 sgl[-1].FlagsLength |= 0xC1000000;
1136
1137 *frags = numfrags;
1138 *blp = buflist;
1139
1140 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "-SG: kbuf_alloc_2_sgl() - "
1141 "%d SG frags generated!\n", ioc->name, numfrags));
1142
1143 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "-SG: kbuf_alloc_2_sgl() - "
1144 "last (big) alloc_sz=%d\n", ioc->name, alloc_sz));
1145
1146 return sglbuf;
1147
1148 free_and_fail:
1149 if (sglbuf != NULL) {
1150 for (i = 0; i < numfrags; i++) {
1151 dma_addr_t dma_addr;
1152 u8 *kptr;
1153 int len;
1154
1155 if ((sglbuf[i].FlagsLength >> 24) == 0x30)
1156 continue;
1157
1158 dma_addr = sglbuf[i].Address;
1159 kptr = buflist[i].kptr;
1160 len = buflist[i].len;
1161
1162 pci_free_consistent(ioc->pcidev, len, kptr, dma_addr);
1163 }
1164 pci_free_consistent(ioc->pcidev, MAX_SGL_BYTES, sglbuf, *sglbuf_dma);
1165 }
1166 kfree(buflist);
1167 return NULL;
1168 }
1169
1170 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1171 /*
1172 * Routine to free the SGL elements.
1173 */
1174 static void
1175 kfree_sgl(MptSge_t *sgl, dma_addr_t sgl_dma, struct buflist *buflist, MPT_ADAPTER *ioc)
1176 {
1177 MptSge_t *sg = sgl;
1178 struct buflist *bl = buflist;
1179 u32 nib;
1180 int dir;
1181 int n = 0;
1182
1183 if (sg->FlagsLength & 0x04000000)
1184 dir = PCI_DMA_TODEVICE;
1185 else
1186 dir = PCI_DMA_FROMDEVICE;
1187
1188 nib = (sg->FlagsLength & 0xF0000000) >> 28;
1189 while (! (nib & 0x4)) { /* eob */
1190 /* skip ignore/chain. */
1191 if (nib == 0 || nib == 3) {
1192 ;
1193 } else if (sg->Address) {
1194 dma_addr_t dma_addr;
1195 void *kptr;
1196 int len;
1197
1198 dma_addr = sg->Address;
1199 kptr = bl->kptr;
1200 len = bl->len;
1201 pci_unmap_single(ioc->pcidev, dma_addr, len, dir);
1202 pci_free_consistent(ioc->pcidev, len, kptr, dma_addr);
1203 n++;
1204 }
1205 sg++;
1206 bl++;
1207 nib = (le32_to_cpu(sg->FlagsLength) & 0xF0000000) >> 28;
1208 }
1209
1210 /* we're at eob! */
1211 if (sg->Address) {
1212 dma_addr_t dma_addr;
1213 void *kptr;
1214 int len;
1215
1216 dma_addr = sg->Address;
1217 kptr = bl->kptr;
1218 len = bl->len;
1219 pci_unmap_single(ioc->pcidev, dma_addr, len, dir);
1220 pci_free_consistent(ioc->pcidev, len, kptr, dma_addr);
1221 n++;
1222 }
1223
1224 pci_free_consistent(ioc->pcidev, MAX_SGL_BYTES, sgl, sgl_dma);
1225 kfree(buflist);
1226 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "-SG: Free'd 1 SGL buf + %d kbufs!\n",
1227 ioc->name, n));
1228 }
1229
1230 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1231 /*
1232 * mptctl_getiocinfo - Query the host adapter for IOC information.
1233 * @arg: User space argument
1234 *
1235 * Outputs: None.
1236 * Return: 0 if successful
1237 * -EFAULT if data unavailable
1238 * -ENODEV if no such device/adapter
1239 */
1240 static int
1241 mptctl_getiocinfo (unsigned long arg, unsigned int data_size)
1242 {
1243 struct mpt_ioctl_iocinfo __user *uarg = (void __user *) arg;
1244 struct mpt_ioctl_iocinfo *karg;
1245 MPT_ADAPTER *ioc;
1246 struct pci_dev *pdev;
1247 int iocnum;
1248 unsigned int port;
1249 int cim_rev;
1250 struct scsi_device *sdev;
1251 VirtDevice *vdevice;
1252
1253 /* Add of PCI INFO results in unaligned access for
1254 * IA64 and Sparc. Reset long to int. Return no PCI
1255 * data for obsolete format.
1256 */
1257 if (data_size == sizeof(struct mpt_ioctl_iocinfo_rev0))
1258 cim_rev = 0;
1259 else if (data_size == sizeof(struct mpt_ioctl_iocinfo_rev1))
1260 cim_rev = 1;
1261 else if (data_size == sizeof(struct mpt_ioctl_iocinfo))
1262 cim_rev = 2;
1263 else if (data_size == (sizeof(struct mpt_ioctl_iocinfo_rev0)+12))
1264 cim_rev = 0; /* obsolete */
1265 else
1266 return -EFAULT;
1267
1268 karg = memdup_user(uarg, data_size);
1269 if (IS_ERR(karg)) {
1270 printk(KERN_ERR MYNAM "%s@%d::mpt_ioctl_iocinfo() - memdup_user returned error [%ld]\n",
1271 __FILE__, __LINE__, PTR_ERR(karg));
1272 return PTR_ERR(karg);
1273 }
1274
1275 if (((iocnum = mpt_verify_adapter(karg->hdr.iocnum, &ioc)) < 0) ||
1276 (ioc == NULL)) {
1277 printk(KERN_DEBUG MYNAM "%s::mptctl_getiocinfo() @%d - ioc%d not found!\n",
1278 __FILE__, __LINE__, iocnum);
1279 kfree(karg);
1280 return -ENODEV;
1281 }
1282
1283 /* Verify the data transfer size is correct. */
1284 if (karg->hdr.maxDataSize != data_size) {
1285 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_getiocinfo - "
1286 "Structure size mismatch. Command not completed.\n",
1287 ioc->name, __FILE__, __LINE__);
1288 kfree(karg);
1289 return -EFAULT;
1290 }
1291
1292 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_getiocinfo called.\n",
1293 ioc->name));
1294
1295 /* Fill in the data and return the structure to the calling
1296 * program
1297 */
1298 if (ioc->bus_type == SAS)
1299 karg->adapterType = MPT_IOCTL_INTERFACE_SAS;
1300 else if (ioc->bus_type == FC)
1301 karg->adapterType = MPT_IOCTL_INTERFACE_FC;
1302 else
1303 karg->adapterType = MPT_IOCTL_INTERFACE_SCSI;
1304
1305 if (karg->hdr.port > 1) {
1306 kfree(karg);
1307 return -EINVAL;
1308 }
1309 port = karg->hdr.port;
1310
1311 karg->port = port;
1312 pdev = (struct pci_dev *) ioc->pcidev;
1313
1314 karg->pciId = pdev->device;
1315 karg->hwRev = pdev->revision;
1316 karg->subSystemDevice = pdev->subsystem_device;
1317 karg->subSystemVendor = pdev->subsystem_vendor;
1318
1319 if (cim_rev == 1) {
1320 /* Get the PCI bus, device, and function numbers for the IOC
1321 */
1322 karg->pciInfo.u.bits.busNumber = pdev->bus->number;
1323 karg->pciInfo.u.bits.deviceNumber = PCI_SLOT( pdev->devfn );
1324 karg->pciInfo.u.bits.functionNumber = PCI_FUNC( pdev->devfn );
1325 } else if (cim_rev == 2) {
1326 /* Get the PCI bus, device, function and segment ID numbers
1327 for the IOC */
1328 karg->pciInfo.u.bits.busNumber = pdev->bus->number;
1329 karg->pciInfo.u.bits.deviceNumber = PCI_SLOT( pdev->devfn );
1330 karg->pciInfo.u.bits.functionNumber = PCI_FUNC( pdev->devfn );
1331 karg->pciInfo.segmentID = pci_domain_nr(pdev->bus);
1332 }
1333
1334 /* Get number of devices
1335 */
1336 karg->numDevices = 0;
1337 if (ioc->sh) {
1338 shost_for_each_device(sdev, ioc->sh) {
1339 vdevice = sdev->hostdata;
1340 if (vdevice == NULL || vdevice->vtarget == NULL)
1341 continue;
1342 if (vdevice->vtarget->tflags &
1343 MPT_TARGET_FLAGS_RAID_COMPONENT)
1344 continue;
1345 karg->numDevices++;
1346 }
1347 }
1348
1349 /* Set the BIOS and FW Version
1350 */
1351 karg->FWVersion = ioc->facts.FWVersion.Word;
1352 karg->BIOSVersion = ioc->biosVersion;
1353
1354 /* Set the Version Strings.
1355 */
1356 strncpy (karg->driverVersion, MPT_LINUX_PACKAGE_NAME, MPT_IOCTL_VERSION_LENGTH);
1357 karg->driverVersion[MPT_IOCTL_VERSION_LENGTH-1]='\0';
1358
1359 karg->busChangeEvent = 0;
1360 karg->hostId = ioc->pfacts[port].PortSCSIID;
1361 karg->rsvd[0] = karg->rsvd[1] = 0;
1362
1363 /* Copy the data from kernel memory to user memory
1364 */
1365 if (copy_to_user((char __user *)arg, karg, data_size)) {
1366 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_getiocinfo - "
1367 "Unable to write out mpt_ioctl_iocinfo struct @ %p\n",
1368 ioc->name, __FILE__, __LINE__, uarg);
1369 kfree(karg);
1370 return -EFAULT;
1371 }
1372
1373 kfree(karg);
1374 return 0;
1375 }
1376
1377 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1378 /*
1379 * mptctl_gettargetinfo - Query the host adapter for target information.
1380 * @arg: User space argument
1381 *
1382 * Outputs: None.
1383 * Return: 0 if successful
1384 * -EFAULT if data unavailable
1385 * -ENODEV if no such device/adapter
1386 */
1387 static int
1388 mptctl_gettargetinfo (unsigned long arg)
1389 {
1390 struct mpt_ioctl_targetinfo __user *uarg = (void __user *) arg;
1391 struct mpt_ioctl_targetinfo karg;
1392 MPT_ADAPTER *ioc;
1393 VirtDevice *vdevice;
1394 char *pmem;
1395 int *pdata;
1396 int iocnum;
1397 int numDevices = 0;
1398 int lun;
1399 int maxWordsLeft;
1400 int numBytes;
1401 u8 port;
1402 struct scsi_device *sdev;
1403
1404 if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_targetinfo))) {
1405 printk(KERN_ERR MYNAM "%s@%d::mptctl_gettargetinfo - "
1406 "Unable to read in mpt_ioctl_targetinfo struct @ %p\n",
1407 __FILE__, __LINE__, uarg);
1408 return -EFAULT;
1409 }
1410
1411 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
1412 (ioc == NULL)) {
1413 printk(KERN_DEBUG MYNAM "%s::mptctl_gettargetinfo() @%d - ioc%d not found!\n",
1414 __FILE__, __LINE__, iocnum);
1415 return -ENODEV;
1416 }
1417
1418 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_gettargetinfo called.\n",
1419 ioc->name));
1420 /* Get the port number and set the maximum number of bytes
1421 * in the returned structure.
1422 * Ignore the port setting.
1423 */
1424 numBytes = karg.hdr.maxDataSize - sizeof(mpt_ioctl_header);
1425 maxWordsLeft = numBytes/sizeof(int);
1426 port = karg.hdr.port;
1427
1428 if (maxWordsLeft <= 0) {
1429 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_gettargetinfo() - no memory available!\n",
1430 ioc->name, __FILE__, __LINE__);
1431 return -ENOMEM;
1432 }
1433
1434 /* Fill in the data and return the structure to the calling
1435 * program
1436 */
1437
1438 /* struct mpt_ioctl_targetinfo does not contain sufficient space
1439 * for the target structures so when the IOCTL is called, there is
1440 * not sufficient stack space for the structure. Allocate memory,
1441 * populate the memory, copy back to the user, then free memory.
1442 * targetInfo format:
1443 * bits 31-24: reserved
1444 * 23-16: LUN
1445 * 15- 8: Bus Number
1446 * 7- 0: Target ID
1447 */
1448 pmem = kzalloc(numBytes, GFP_KERNEL);
1449 if (!pmem) {
1450 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_gettargetinfo() - no memory available!\n",
1451 ioc->name, __FILE__, __LINE__);
1452 return -ENOMEM;
1453 }
1454 pdata = (int *) pmem;
1455
1456 /* Get number of devices
1457 */
1458 if (ioc->sh){
1459 shost_for_each_device(sdev, ioc->sh) {
1460 if (!maxWordsLeft)
1461 continue;
1462 vdevice = sdev->hostdata;
1463 if (vdevice == NULL || vdevice->vtarget == NULL)
1464 continue;
1465 if (vdevice->vtarget->tflags &
1466 MPT_TARGET_FLAGS_RAID_COMPONENT)
1467 continue;
1468 lun = (vdevice->vtarget->raidVolume) ? 0x80 : vdevice->lun;
1469 *pdata = (((u8)lun << 16) + (vdevice->vtarget->channel << 8) +
1470 (vdevice->vtarget->id ));
1471 pdata++;
1472 numDevices++;
1473 --maxWordsLeft;
1474 }
1475 }
1476 karg.numDevices = numDevices;
1477
1478 /* Copy part of the data from kernel memory to user memory
1479 */
1480 if (copy_to_user((char __user *)arg, &karg,
1481 sizeof(struct mpt_ioctl_targetinfo))) {
1482 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_gettargetinfo - "
1483 "Unable to write out mpt_ioctl_targetinfo struct @ %p\n",
1484 ioc->name, __FILE__, __LINE__, uarg);
1485 kfree(pmem);
1486 return -EFAULT;
1487 }
1488
1489 /* Copy the remaining data from kernel memory to user memory
1490 */
1491 if (copy_to_user(uarg->targetInfo, pmem, numBytes)) {
1492 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_gettargetinfo - "
1493 "Unable to write out mpt_ioctl_targetinfo struct @ %p\n",
1494 ioc->name, __FILE__, __LINE__, pdata);
1495 kfree(pmem);
1496 return -EFAULT;
1497 }
1498
1499 kfree(pmem);
1500
1501 return 0;
1502 }
1503
1504 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1505 /* MPT IOCTL Test function.
1506 *
1507 * Outputs: None.
1508 * Return: 0 if successful
1509 * -EFAULT if data unavailable
1510 * -ENODEV if no such device/adapter
1511 */
1512 static int
1513 mptctl_readtest (unsigned long arg)
1514 {
1515 struct mpt_ioctl_test __user *uarg = (void __user *) arg;
1516 struct mpt_ioctl_test karg;
1517 MPT_ADAPTER *ioc;
1518 int iocnum;
1519
1520 if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_test))) {
1521 printk(KERN_ERR MYNAM "%s@%d::mptctl_readtest - "
1522 "Unable to read in mpt_ioctl_test struct @ %p\n",
1523 __FILE__, __LINE__, uarg);
1524 return -EFAULT;
1525 }
1526
1527 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
1528 (ioc == NULL)) {
1529 printk(KERN_DEBUG MYNAM "%s::mptctl_readtest() @%d - ioc%d not found!\n",
1530 __FILE__, __LINE__, iocnum);
1531 return -ENODEV;
1532 }
1533
1534 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_readtest called.\n",
1535 ioc->name));
1536 /* Fill in the data and return the structure to the calling
1537 * program
1538 */
1539
1540 #ifdef MFCNT
1541 karg.chip_type = ioc->mfcnt;
1542 #else
1543 karg.chip_type = ioc->pcidev->device;
1544 #endif
1545 strncpy (karg.name, ioc->name, MPT_MAX_NAME);
1546 karg.name[MPT_MAX_NAME-1]='\0';
1547 strncpy (karg.product, ioc->prod_name, MPT_PRODUCT_LENGTH);
1548 karg.product[MPT_PRODUCT_LENGTH-1]='\0';
1549
1550 /* Copy the data from kernel memory to user memory
1551 */
1552 if (copy_to_user((char __user *)arg, &karg, sizeof(struct mpt_ioctl_test))) {
1553 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_readtest - "
1554 "Unable to write out mpt_ioctl_test struct @ %p\n",
1555 ioc->name, __FILE__, __LINE__, uarg);
1556 return -EFAULT;
1557 }
1558
1559 return 0;
1560 }
1561
1562 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1563 /*
1564 * mptctl_eventquery - Query the host adapter for the event types
1565 * that are being logged.
1566 * @arg: User space argument
1567 *
1568 * Outputs: None.
1569 * Return: 0 if successful
1570 * -EFAULT if data unavailable
1571 * -ENODEV if no such device/adapter
1572 */
1573 static int
1574 mptctl_eventquery (unsigned long arg)
1575 {
1576 struct mpt_ioctl_eventquery __user *uarg = (void __user *) arg;
1577 struct mpt_ioctl_eventquery karg;
1578 MPT_ADAPTER *ioc;
1579 int iocnum;
1580
1581 if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_eventquery))) {
1582 printk(KERN_ERR MYNAM "%s@%d::mptctl_eventquery - "
1583 "Unable to read in mpt_ioctl_eventquery struct @ %p\n",
1584 __FILE__, __LINE__, uarg);
1585 return -EFAULT;
1586 }
1587
1588 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
1589 (ioc == NULL)) {
1590 printk(KERN_DEBUG MYNAM "%s::mptctl_eventquery() @%d - ioc%d not found!\n",
1591 __FILE__, __LINE__, iocnum);
1592 return -ENODEV;
1593 }
1594
1595 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_eventquery called.\n",
1596 ioc->name));
1597 karg.eventEntries = MPTCTL_EVENT_LOG_SIZE;
1598 karg.eventTypes = ioc->eventTypes;
1599
1600 /* Copy the data from kernel memory to user memory
1601 */
1602 if (copy_to_user((char __user *)arg, &karg, sizeof(struct mpt_ioctl_eventquery))) {
1603 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_eventquery - "
1604 "Unable to write out mpt_ioctl_eventquery struct @ %p\n",
1605 ioc->name, __FILE__, __LINE__, uarg);
1606 return -EFAULT;
1607 }
1608 return 0;
1609 }
1610
1611 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1612 static int
1613 mptctl_eventenable (unsigned long arg)
1614 {
1615 struct mpt_ioctl_eventenable __user *uarg = (void __user *) arg;
1616 struct mpt_ioctl_eventenable karg;
1617 MPT_ADAPTER *ioc;
1618 int iocnum;
1619
1620 if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_eventenable))) {
1621 printk(KERN_ERR MYNAM "%s@%d::mptctl_eventenable - "
1622 "Unable to read in mpt_ioctl_eventenable struct @ %p\n",
1623 __FILE__, __LINE__, uarg);
1624 return -EFAULT;
1625 }
1626
1627 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
1628 (ioc == NULL)) {
1629 printk(KERN_DEBUG MYNAM "%s::mptctl_eventenable() @%d - ioc%d not found!\n",
1630 __FILE__, __LINE__, iocnum);
1631 return -ENODEV;
1632 }
1633
1634 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_eventenable called.\n",
1635 ioc->name));
1636 if (ioc->events == NULL) {
1637 /* Have not yet allocated memory - do so now.
1638 */
1639 int sz = MPTCTL_EVENT_LOG_SIZE * sizeof(MPT_IOCTL_EVENTS);
1640 ioc->events = kzalloc(sz, GFP_KERNEL);
1641 if (!ioc->events) {
1642 printk(MYIOC_s_ERR_FMT
1643 ": ERROR - Insufficient memory to add adapter!\n",
1644 ioc->name);
1645 return -ENOMEM;
1646 }
1647 ioc->alloc_total += sz;
1648
1649 ioc->eventContext = 0;
1650 }
1651
1652 /* Update the IOC event logging flag.
1653 */
1654 ioc->eventTypes = karg.eventTypes;
1655
1656 return 0;
1657 }
1658
1659 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1660 static int
1661 mptctl_eventreport (unsigned long arg)
1662 {
1663 struct mpt_ioctl_eventreport __user *uarg = (void __user *) arg;
1664 struct mpt_ioctl_eventreport karg;
1665 MPT_ADAPTER *ioc;
1666 int iocnum;
1667 int numBytes, maxEvents, max;
1668
1669 if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_eventreport))) {
1670 printk(KERN_ERR MYNAM "%s@%d::mptctl_eventreport - "
1671 "Unable to read in mpt_ioctl_eventreport struct @ %p\n",
1672 __FILE__, __LINE__, uarg);
1673 return -EFAULT;
1674 }
1675
1676 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
1677 (ioc == NULL)) {
1678 printk(KERN_DEBUG MYNAM "%s::mptctl_eventreport() @%d - ioc%d not found!\n",
1679 __FILE__, __LINE__, iocnum);
1680 return -ENODEV;
1681 }
1682 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_eventreport called.\n",
1683 ioc->name));
1684
1685 numBytes = karg.hdr.maxDataSize - sizeof(mpt_ioctl_header);
1686 maxEvents = numBytes/sizeof(MPT_IOCTL_EVENTS);
1687
1688
1689 max = MPTCTL_EVENT_LOG_SIZE < maxEvents ? MPTCTL_EVENT_LOG_SIZE : maxEvents;
1690
1691 /* If fewer than 1 event is requested, there must have
1692 * been some type of error.
1693 */
1694 if ((max < 1) || !ioc->events)
1695 return -ENODATA;
1696
1697 /* reset this flag so SIGIO can restart */
1698 ioc->aen_event_read_flag=0;
1699
1700 /* Copy the data from kernel memory to user memory
1701 */
1702 numBytes = max * sizeof(MPT_IOCTL_EVENTS);
1703 if (copy_to_user(uarg->eventData, ioc->events, numBytes)) {
1704 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_eventreport - "
1705 "Unable to write out mpt_ioctl_eventreport struct @ %p\n",
1706 ioc->name, __FILE__, __LINE__, ioc->events);
1707 return -EFAULT;
1708 }
1709
1710 return 0;
1711 }
1712
1713 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1714 static int
1715 mptctl_replace_fw (unsigned long arg)
1716 {
1717 struct mpt_ioctl_replace_fw __user *uarg = (void __user *) arg;
1718 struct mpt_ioctl_replace_fw karg;
1719 MPT_ADAPTER *ioc;
1720 int iocnum;
1721 int newFwSize;
1722
1723 if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_replace_fw))) {
1724 printk(KERN_ERR MYNAM "%s@%d::mptctl_replace_fw - "
1725 "Unable to read in mpt_ioctl_replace_fw struct @ %p\n",
1726 __FILE__, __LINE__, uarg);
1727 return -EFAULT;
1728 }
1729
1730 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
1731 (ioc == NULL)) {
1732 printk(KERN_DEBUG MYNAM "%s::mptctl_replace_fw() @%d - ioc%d not found!\n",
1733 __FILE__, __LINE__, iocnum);
1734 return -ENODEV;
1735 }
1736
1737 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_replace_fw called.\n",
1738 ioc->name));
1739 /* If caching FW, Free the old FW image
1740 */
1741 if (ioc->cached_fw == NULL)
1742 return 0;
1743
1744 mpt_free_fw_memory(ioc);
1745
1746 /* Allocate memory for the new FW image
1747 */
1748 newFwSize = ALIGN(karg.newImageSize, 4);
1749
1750 mpt_alloc_fw_memory(ioc, newFwSize);
1751 if (ioc->cached_fw == NULL)
1752 return -ENOMEM;
1753
1754 /* Copy the data from user memory to kernel space
1755 */
1756 if (copy_from_user(ioc->cached_fw, uarg->newImage, newFwSize)) {
1757 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_replace_fw - "
1758 "Unable to read in mpt_ioctl_replace_fw image "
1759 "@ %p\n", ioc->name, __FILE__, __LINE__, uarg);
1760 mpt_free_fw_memory(ioc);
1761 return -EFAULT;
1762 }
1763
1764 /* Update IOCFactsReply
1765 */
1766 ioc->facts.FWImageSize = newFwSize;
1767 return 0;
1768 }
1769
1770 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1771 /* MPT IOCTL MPTCOMMAND function.
1772 * Cast the arg into the mpt_ioctl_mpt_command structure.
1773 *
1774 * Outputs: None.
1775 * Return: 0 if successful
1776 * -EBUSY if previous command timeout and IOC reset is not complete.
1777 * -EFAULT if data unavailable
1778 * -ENODEV if no such device/adapter
1779 * -ETIME if timer expires
1780 * -ENOMEM if memory allocation error
1781 */
1782 static int
1783 mptctl_mpt_command (unsigned long arg)
1784 {
1785 struct mpt_ioctl_command __user *uarg = (void __user *) arg;
1786 struct mpt_ioctl_command karg;
1787 MPT_ADAPTER *ioc;
1788 int iocnum;
1789 int rc;
1790
1791
1792 if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_command))) {
1793 printk(KERN_ERR MYNAM "%s@%d::mptctl_mpt_command - "
1794 "Unable to read in mpt_ioctl_command struct @ %p\n",
1795 __FILE__, __LINE__, uarg);
1796 return -EFAULT;
1797 }
1798
1799 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
1800 (ioc == NULL)) {
1801 printk(KERN_DEBUG MYNAM "%s::mptctl_mpt_command() @%d - ioc%d not found!\n",
1802 __FILE__, __LINE__, iocnum);
1803 return -ENODEV;
1804 }
1805
1806 rc = mptctl_do_mpt_command (karg, &uarg->MF);
1807
1808 return rc;
1809 }
1810
1811 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1812 /* Worker routine for the IOCTL MPTCOMMAND and MPTCOMMAND32 (sparc) commands.
1813 *
1814 * Outputs: None.
1815 * Return: 0 if successful
1816 * -EBUSY if previous command timeout and IOC reset is not complete.
1817 * -EFAULT if data unavailable
1818 * -ENODEV if no such device/adapter
1819 * -ETIME if timer expires
1820 * -ENOMEM if memory allocation error
1821 * -EPERM if SCSI I/O and target is untagged
1822 */
1823 static int
1824 mptctl_do_mpt_command (struct mpt_ioctl_command karg, void __user *mfPtr)
1825 {
1826 MPT_ADAPTER *ioc;
1827 MPT_FRAME_HDR *mf = NULL;
1828 MPIHeader_t *hdr;
1829 char *psge;
1830 struct buflist bufIn; /* data In buffer */
1831 struct buflist bufOut; /* data Out buffer */
1832 dma_addr_t dma_addr_in;
1833 dma_addr_t dma_addr_out;
1834 int sgSize = 0; /* Num SG elements */
1835 int iocnum, flagsLength;
1836 int sz, rc = 0;
1837 int msgContext;
1838 u16 req_idx;
1839 ulong timeout;
1840 unsigned long timeleft;
1841 struct scsi_device *sdev;
1842 unsigned long flags;
1843 u8 function;
1844
1845 /* bufIn and bufOut are used for user to kernel space transfers
1846 */
1847 bufIn.kptr = bufOut.kptr = NULL;
1848 bufIn.len = bufOut.len = 0;
1849
1850 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
1851 (ioc == NULL)) {
1852 printk(KERN_DEBUG MYNAM "%s::mptctl_do_mpt_command() @%d - ioc%d not found!\n",
1853 __FILE__, __LINE__, iocnum);
1854 return -ENODEV;
1855 }
1856
1857 spin_lock_irqsave(&ioc->taskmgmt_lock, flags);
1858 if (ioc->ioc_reset_in_progress) {
1859 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
1860 printk(KERN_ERR MYNAM "%s@%d::mptctl_do_mpt_command - "
1861 "Busy with diagnostic reset\n", __FILE__, __LINE__);
1862 return -EBUSY;
1863 }
1864 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
1865
1866 /* Basic sanity checks to prevent underflows or integer overflows */
1867 if (karg.maxReplyBytes < 0 ||
1868 karg.dataInSize < 0 ||
1869 karg.dataOutSize < 0 ||
1870 karg.dataSgeOffset < 0 ||
1871 karg.maxSenseBytes < 0 ||
1872 karg.dataSgeOffset > ioc->req_sz / 4)
1873 return -EINVAL;
1874
1875 /* Verify that the final request frame will not be too large.
1876 */
1877 sz = karg.dataSgeOffset * 4;
1878 if (karg.dataInSize > 0)
1879 sz += ioc->SGE_size;
1880 if (karg.dataOutSize > 0)
1881 sz += ioc->SGE_size;
1882
1883 if (sz > ioc->req_sz) {
1884 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
1885 "Request frame too large (%d) maximum (%d)\n",
1886 ioc->name, __FILE__, __LINE__, sz, ioc->req_sz);
1887 return -EFAULT;
1888 }
1889
1890 /* Get a free request frame and save the message context.
1891 */
1892 if ((mf = mpt_get_msg_frame(mptctl_id, ioc)) == NULL)
1893 return -EAGAIN;
1894
1895 hdr = (MPIHeader_t *) mf;
1896 msgContext = le32_to_cpu(hdr->MsgContext);
1897 req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
1898
1899 /* Copy the request frame
1900 * Reset the saved message context.
1901 * Request frame in user space
1902 */
1903 if (copy_from_user(mf, mfPtr, karg.dataSgeOffset * 4)) {
1904 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
1905 "Unable to read MF from mpt_ioctl_command struct @ %p\n",
1906 ioc->name, __FILE__, __LINE__, mfPtr);
1907 function = -1;
1908 rc = -EFAULT;
1909 goto done_free_mem;
1910 }
1911 hdr->MsgContext = cpu_to_le32(msgContext);
1912 function = hdr->Function;
1913
1914
1915 /* Verify that this request is allowed.
1916 */
1917 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "sending mpi function (0x%02X), req=%p\n",
1918 ioc->name, hdr->Function, mf));
1919
1920 switch (function) {
1921 case MPI_FUNCTION_IOC_FACTS:
1922 case MPI_FUNCTION_PORT_FACTS:
1923 karg.dataOutSize = karg.dataInSize = 0;
1924 break;
1925
1926 case MPI_FUNCTION_CONFIG:
1927 {
1928 Config_t *config_frame;
1929 config_frame = (Config_t *)mf;
1930 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "\ttype=0x%02x ext_type=0x%02x "
1931 "number=0x%02x action=0x%02x\n", ioc->name,
1932 config_frame->Header.PageType,
1933 config_frame->ExtPageType,
1934 config_frame->Header.PageNumber,
1935 config_frame->Action));
1936 break;
1937 }
1938
1939 case MPI_FUNCTION_FC_COMMON_TRANSPORT_SEND:
1940 case MPI_FUNCTION_FC_EX_LINK_SRVC_SEND:
1941 case MPI_FUNCTION_FW_UPLOAD:
1942 case MPI_FUNCTION_SCSI_ENCLOSURE_PROCESSOR:
1943 case MPI_FUNCTION_FW_DOWNLOAD:
1944 case MPI_FUNCTION_FC_PRIMITIVE_SEND:
1945 case MPI_FUNCTION_TOOLBOX:
1946 case MPI_FUNCTION_SAS_IO_UNIT_CONTROL:
1947 break;
1948
1949 case MPI_FUNCTION_SCSI_IO_REQUEST:
1950 if (ioc->sh) {
1951 SCSIIORequest_t *pScsiReq = (SCSIIORequest_t *) mf;
1952 int qtag = MPI_SCSIIO_CONTROL_UNTAGGED;
1953 int scsidir = 0;
1954 int dataSize;
1955 u32 id;
1956
1957 id = (ioc->devices_per_bus == 0) ? 256 : ioc->devices_per_bus;
1958 if (pScsiReq->TargetID > id) {
1959 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
1960 "Target ID out of bounds. \n",
1961 ioc->name, __FILE__, __LINE__);
1962 rc = -ENODEV;
1963 goto done_free_mem;
1964 }
1965
1966 if (pScsiReq->Bus >= ioc->number_of_buses) {
1967 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
1968 "Target Bus out of bounds. \n",
1969 ioc->name, __FILE__, __LINE__);
1970 rc = -ENODEV;
1971 goto done_free_mem;
1972 }
1973
1974 pScsiReq->MsgFlags &= ~MPI_SCSIIO_MSGFLGS_SENSE_WIDTH;
1975 pScsiReq->MsgFlags |= mpt_msg_flags(ioc);
1976
1977
1978 /* verify that app has not requested
1979 * more sense data than driver
1980 * can provide, if so, reset this parameter
1981 * set the sense buffer pointer low address
1982 * update the control field to specify Q type
1983 */
1984 if (karg.maxSenseBytes > MPT_SENSE_BUFFER_SIZE)
1985 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
1986 else
1987 pScsiReq->SenseBufferLength = karg.maxSenseBytes;
1988
1989 pScsiReq->SenseBufferLowAddr =
1990 cpu_to_le32(ioc->sense_buf_low_dma
1991 + (req_idx * MPT_SENSE_BUFFER_ALLOC));
1992
1993 shost_for_each_device(sdev, ioc->sh) {
1994 struct scsi_target *starget = scsi_target(sdev);
1995 VirtTarget *vtarget = starget->hostdata;
1996
1997 if (vtarget == NULL)
1998 continue;
1999
2000 if ((pScsiReq->TargetID == vtarget->id) &&
2001 (pScsiReq->Bus == vtarget->channel) &&
2002 (vtarget->tflags & MPT_TARGET_FLAGS_Q_YES))
2003 qtag = MPI_SCSIIO_CONTROL_SIMPLEQ;
2004 }
2005
2006 /* Have the IOCTL driver set the direction based
2007 * on the dataOutSize (ordering issue with Sparc).
2008 */
2009 if (karg.dataOutSize > 0) {
2010 scsidir = MPI_SCSIIO_CONTROL_WRITE;
2011 dataSize = karg.dataOutSize;
2012 } else {
2013 scsidir = MPI_SCSIIO_CONTROL_READ;
2014 dataSize = karg.dataInSize;
2015 }
2016
2017 pScsiReq->Control = cpu_to_le32(scsidir | qtag);
2018 pScsiReq->DataLength = cpu_to_le32(dataSize);
2019
2020
2021 } else {
2022 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
2023 "SCSI driver is not loaded. \n",
2024 ioc->name, __FILE__, __LINE__);
2025 rc = -EFAULT;
2026 goto done_free_mem;
2027 }
2028 break;
2029
2030 case MPI_FUNCTION_SMP_PASSTHROUGH:
2031 /* Check mf->PassthruFlags to determine if
2032 * transfer is ImmediateMode or not.
2033 * Immediate mode returns data in the ReplyFrame.
2034 * Else, we are sending request and response data
2035 * in two SGLs at the end of the mf.
2036 */
2037 break;
2038
2039 case MPI_FUNCTION_SATA_PASSTHROUGH:
2040 if (!ioc->sh) {
2041 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
2042 "SCSI driver is not loaded. \n",
2043 ioc->name, __FILE__, __LINE__);
2044 rc = -EFAULT;
2045 goto done_free_mem;
2046 }
2047 break;
2048
2049 case MPI_FUNCTION_RAID_ACTION:
2050 /* Just add a SGE
2051 */
2052 break;
2053
2054 case MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
2055 if (ioc->sh) {
2056 SCSIIORequest_t *pScsiReq = (SCSIIORequest_t *) mf;
2057 int qtag = MPI_SCSIIO_CONTROL_SIMPLEQ;
2058 int scsidir = MPI_SCSIIO_CONTROL_READ;
2059 int dataSize;
2060
2061 pScsiReq->MsgFlags &= ~MPI_SCSIIO_MSGFLGS_SENSE_WIDTH;
2062 pScsiReq->MsgFlags |= mpt_msg_flags(ioc);
2063
2064
2065 /* verify that app has not requested
2066 * more sense data than driver
2067 * can provide, if so, reset this parameter
2068 * set the sense buffer pointer low address
2069 * update the control field to specify Q type
2070 */
2071 if (karg.maxSenseBytes > MPT_SENSE_BUFFER_SIZE)
2072 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
2073 else
2074 pScsiReq->SenseBufferLength = karg.maxSenseBytes;
2075
2076 pScsiReq->SenseBufferLowAddr =
2077 cpu_to_le32(ioc->sense_buf_low_dma
2078 + (req_idx * MPT_SENSE_BUFFER_ALLOC));
2079
2080 /* All commands to physical devices are tagged
2081 */
2082
2083 /* Have the IOCTL driver set the direction based
2084 * on the dataOutSize (ordering issue with Sparc).
2085 */
2086 if (karg.dataOutSize > 0) {
2087 scsidir = MPI_SCSIIO_CONTROL_WRITE;
2088 dataSize = karg.dataOutSize;
2089 } else {
2090 scsidir = MPI_SCSIIO_CONTROL_READ;
2091 dataSize = karg.dataInSize;
2092 }
2093
2094 pScsiReq->Control = cpu_to_le32(scsidir | qtag);
2095 pScsiReq->DataLength = cpu_to_le32(dataSize);
2096
2097 } else {
2098 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
2099 "SCSI driver is not loaded. \n",
2100 ioc->name, __FILE__, __LINE__);
2101 rc = -EFAULT;
2102 goto done_free_mem;
2103 }
2104 break;
2105
2106 case MPI_FUNCTION_SCSI_TASK_MGMT:
2107 {
2108 SCSITaskMgmt_t *pScsiTm;
2109 pScsiTm = (SCSITaskMgmt_t *)mf;
2110 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2111 "\tTaskType=0x%x MsgFlags=0x%x "
2112 "TaskMsgContext=0x%x id=%d channel=%d\n",
2113 ioc->name, pScsiTm->TaskType, le32_to_cpu
2114 (pScsiTm->TaskMsgContext), pScsiTm->MsgFlags,
2115 pScsiTm->TargetID, pScsiTm->Bus));
2116 break;
2117 }
2118
2119 case MPI_FUNCTION_IOC_INIT:
2120 {
2121 IOCInit_t *pInit = (IOCInit_t *) mf;
2122 u32 high_addr, sense_high;
2123
2124 /* Verify that all entries in the IOC INIT match
2125 * existing setup (and in LE format).
2126 */
2127 if (sizeof(dma_addr_t) == sizeof(u64)) {
2128 high_addr = cpu_to_le32((u32)((u64)ioc->req_frames_dma >> 32));
2129 sense_high= cpu_to_le32((u32)((u64)ioc->sense_buf_pool_dma >> 32));
2130 } else {
2131 high_addr = 0;
2132 sense_high= 0;
2133 }
2134
2135 if ((pInit->Flags != 0) || (pInit->MaxDevices != ioc->facts.MaxDevices) ||
2136 (pInit->MaxBuses != ioc->facts.MaxBuses) ||
2137 (pInit->ReplyFrameSize != cpu_to_le16(ioc->reply_sz)) ||
2138 (pInit->HostMfaHighAddr != high_addr) ||
2139 (pInit->SenseBufferHighAddr != sense_high)) {
2140 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
2141 "IOC_INIT issued with 1 or more incorrect parameters. Rejected.\n",
2142 ioc->name, __FILE__, __LINE__);
2143 rc = -EFAULT;
2144 goto done_free_mem;
2145 }
2146 }
2147 break;
2148 default:
2149 /*
2150 * MPI_FUNCTION_PORT_ENABLE
2151 * MPI_FUNCTION_TARGET_CMD_BUFFER_POST
2152 * MPI_FUNCTION_TARGET_ASSIST
2153 * MPI_FUNCTION_TARGET_STATUS_SEND
2154 * MPI_FUNCTION_TARGET_MODE_ABORT
2155 * MPI_FUNCTION_IOC_MESSAGE_UNIT_RESET
2156 * MPI_FUNCTION_IO_UNIT_RESET
2157 * MPI_FUNCTION_HANDSHAKE
2158 * MPI_FUNCTION_REPLY_FRAME_REMOVAL
2159 * MPI_FUNCTION_EVENT_NOTIFICATION
2160 * (driver handles event notification)
2161 * MPI_FUNCTION_EVENT_ACK
2162 */
2163
2164 /* What to do with these??? CHECK ME!!!
2165 MPI_FUNCTION_FC_LINK_SRVC_BUF_POST
2166 MPI_FUNCTION_FC_LINK_SRVC_RSP
2167 MPI_FUNCTION_FC_ABORT
2168 MPI_FUNCTION_LAN_SEND
2169 MPI_FUNCTION_LAN_RECEIVE
2170 MPI_FUNCTION_LAN_RESET
2171 */
2172
2173 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
2174 "Illegal request (function 0x%x) \n",
2175 ioc->name, __FILE__, __LINE__, hdr->Function);
2176 rc = -EFAULT;
2177 goto done_free_mem;
2178 }
2179
2180 /* Add the SGL ( at most one data in SGE and one data out SGE )
2181 * In the case of two SGE's - the data out (write) will always
2182 * preceede the data in (read) SGE. psgList is used to free the
2183 * allocated memory.
2184 */
2185 psge = (char *) (((int *) mf) + karg.dataSgeOffset);
2186 flagsLength = 0;
2187
2188 if (karg.dataOutSize > 0)
2189 sgSize ++;
2190
2191 if (karg.dataInSize > 0)
2192 sgSize ++;
2193
2194 if (sgSize > 0) {
2195
2196 /* Set up the dataOut memory allocation */
2197 if (karg.dataOutSize > 0) {
2198 if (karg.dataInSize > 0) {
2199 flagsLength = ( MPI_SGE_FLAGS_SIMPLE_ELEMENT |
2200 MPI_SGE_FLAGS_END_OF_BUFFER |
2201 MPI_SGE_FLAGS_DIRECTION)
2202 << MPI_SGE_FLAGS_SHIFT;
2203 } else {
2204 flagsLength = MPT_SGE_FLAGS_SSIMPLE_WRITE;
2205 }
2206 flagsLength |= karg.dataOutSize;
2207 bufOut.len = karg.dataOutSize;
2208 bufOut.kptr = pci_alloc_consistent(
2209 ioc->pcidev, bufOut.len, &dma_addr_out);
2210
2211 if (bufOut.kptr == NULL) {
2212 rc = -ENOMEM;
2213 goto done_free_mem;
2214 } else {
2215 /* Set up this SGE.
2216 * Copy to MF and to sglbuf
2217 */
2218 ioc->add_sge(psge, flagsLength, dma_addr_out);
2219 psge += ioc->SGE_size;
2220
2221 /* Copy user data to kernel space.
2222 */
2223 if (copy_from_user(bufOut.kptr,
2224 karg.dataOutBufPtr,
2225 bufOut.len)) {
2226 printk(MYIOC_s_ERR_FMT
2227 "%s@%d::mptctl_do_mpt_command - Unable "
2228 "to read user data "
2229 "struct @ %p\n",
2230 ioc->name, __FILE__, __LINE__,karg.dataOutBufPtr);
2231 rc = -EFAULT;
2232 goto done_free_mem;
2233 }
2234 }
2235 }
2236
2237 if (karg.dataInSize > 0) {
2238 flagsLength = MPT_SGE_FLAGS_SSIMPLE_READ;
2239 flagsLength |= karg.dataInSize;
2240
2241 bufIn.len = karg.dataInSize;
2242 bufIn.kptr = pci_alloc_consistent(ioc->pcidev,
2243 bufIn.len, &dma_addr_in);
2244
2245 if (bufIn.kptr == NULL) {
2246 rc = -ENOMEM;
2247 goto done_free_mem;
2248 } else {
2249 /* Set up this SGE
2250 * Copy to MF and to sglbuf
2251 */
2252 ioc->add_sge(psge, flagsLength, dma_addr_in);
2253 }
2254 }
2255 } else {
2256 /* Add a NULL SGE
2257 */
2258 ioc->add_sge(psge, flagsLength, (dma_addr_t) -1);
2259 }
2260
2261 SET_MGMT_MSG_CONTEXT(ioc->ioctl_cmds.msg_context, hdr->MsgContext);
2262 INITIALIZE_MGMT_STATUS(ioc->ioctl_cmds.status)
2263 if (hdr->Function == MPI_FUNCTION_SCSI_TASK_MGMT) {
2264
2265 mutex_lock(&ioc->taskmgmt_cmds.mutex);
2266 if (mpt_set_taskmgmt_in_progress_flag(ioc) != 0) {
2267 mutex_unlock(&ioc->taskmgmt_cmds.mutex);
2268 goto done_free_mem;
2269 }
2270
2271 DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)mf);
2272
2273 if ((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) &&
2274 (ioc->facts.MsgVersion >= MPI_VERSION_01_05))
2275 mpt_put_msg_frame_hi_pri(mptctl_id, ioc, mf);
2276 else {
2277 rc =mpt_send_handshake_request(mptctl_id, ioc,
2278 sizeof(SCSITaskMgmt_t), (u32*)mf, CAN_SLEEP);
2279 if (rc != 0) {
2280 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
2281 "send_handshake FAILED! (ioc %p, mf %p)\n",
2282 ioc->name, ioc, mf));
2283 mpt_clear_taskmgmt_in_progress_flag(ioc);
2284 rc = -ENODATA;
2285 mutex_unlock(&ioc->taskmgmt_cmds.mutex);
2286 goto done_free_mem;
2287 }
2288 }
2289
2290 } else
2291 mpt_put_msg_frame(mptctl_id, ioc, mf);
2292
2293 /* Now wait for the command to complete */
2294 timeout = (karg.timeout > 0) ? karg.timeout : MPT_IOCTL_DEFAULT_TIMEOUT;
2295 retry_wait:
2296 timeleft = wait_for_completion_timeout(&ioc->ioctl_cmds.done,
2297 HZ*timeout);
2298 if (!(ioc->ioctl_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
2299 rc = -ETIME;
2300 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "%s: TIMED OUT!\n",
2301 ioc->name, __func__));
2302 if (ioc->ioctl_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) {
2303 if (function == MPI_FUNCTION_SCSI_TASK_MGMT)
2304 mutex_unlock(&ioc->taskmgmt_cmds.mutex);
2305 goto done_free_mem;
2306 }
2307 if (!timeleft) {
2308 printk(MYIOC_s_WARN_FMT
2309 "mpt cmd timeout, doorbell=0x%08x"
2310 " function=0x%x\n",
2311 ioc->name, mpt_GetIocState(ioc, 0), function);
2312 if (function == MPI_FUNCTION_SCSI_TASK_MGMT)
2313 mutex_unlock(&ioc->taskmgmt_cmds.mutex);
2314 mptctl_timeout_expired(ioc, mf);
2315 mf = NULL;
2316 } else
2317 goto retry_wait;
2318 goto done_free_mem;
2319 }
2320
2321 if (function == MPI_FUNCTION_SCSI_TASK_MGMT)
2322 mutex_unlock(&ioc->taskmgmt_cmds.mutex);
2323
2324
2325 mf = NULL;
2326
2327 /* If a valid reply frame, copy to the user.
2328 * Offset 2: reply length in U32's
2329 */
2330 if (ioc->ioctl_cmds.status & MPT_MGMT_STATUS_RF_VALID) {
2331 if (karg.maxReplyBytes < ioc->reply_sz) {
2332 sz = min(karg.maxReplyBytes,
2333 4*ioc->ioctl_cmds.reply[2]);
2334 } else {
2335 sz = min(ioc->reply_sz, 4*ioc->ioctl_cmds.reply[2]);
2336 }
2337 if (sz > 0) {
2338 if (copy_to_user(karg.replyFrameBufPtr,
2339 ioc->ioctl_cmds.reply, sz)){
2340 printk(MYIOC_s_ERR_FMT
2341 "%s@%d::mptctl_do_mpt_command - "
2342 "Unable to write out reply frame %p\n",
2343 ioc->name, __FILE__, __LINE__, karg.replyFrameBufPtr);
2344 rc = -ENODATA;
2345 goto done_free_mem;
2346 }
2347 }
2348 }
2349
2350 /* If valid sense data, copy to user.
2351 */
2352 if (ioc->ioctl_cmds.status & MPT_MGMT_STATUS_SENSE_VALID) {
2353 sz = min(karg.maxSenseBytes, MPT_SENSE_BUFFER_SIZE);
2354 if (sz > 0) {
2355 if (copy_to_user(karg.senseDataPtr,
2356 ioc->ioctl_cmds.sense, sz)) {
2357 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
2358 "Unable to write sense data to user %p\n",
2359 ioc->name, __FILE__, __LINE__,
2360 karg.senseDataPtr);
2361 rc = -ENODATA;
2362 goto done_free_mem;
2363 }
2364 }
2365 }
2366
2367 /* If the overall status is _GOOD and data in, copy data
2368 * to user.
2369 */
2370 if ((ioc->ioctl_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD) &&
2371 (karg.dataInSize > 0) && (bufIn.kptr)) {
2372
2373 if (copy_to_user(karg.dataInBufPtr,
2374 bufIn.kptr, karg.dataInSize)) {
2375 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
2376 "Unable to write data to user %p\n",
2377 ioc->name, __FILE__, __LINE__,
2378 karg.dataInBufPtr);
2379 rc = -ENODATA;
2380 }
2381 }
2382
2383 done_free_mem:
2384
2385 CLEAR_MGMT_STATUS(ioc->ioctl_cmds.status)
2386 SET_MGMT_MSG_CONTEXT(ioc->ioctl_cmds.msg_context, 0);
2387
2388 /* Free the allocated memory.
2389 */
2390 if (bufOut.kptr != NULL) {
2391 pci_free_consistent(ioc->pcidev,
2392 bufOut.len, (void *) bufOut.kptr, dma_addr_out);
2393 }
2394
2395 if (bufIn.kptr != NULL) {
2396 pci_free_consistent(ioc->pcidev,
2397 bufIn.len, (void *) bufIn.kptr, dma_addr_in);
2398 }
2399
2400 /* mf is null if command issued successfully
2401 * otherwise, failure occurred after mf acquired.
2402 */
2403 if (mf)
2404 mpt_free_msg_frame(ioc, mf);
2405
2406 return rc;
2407 }
2408
2409 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2410 /* Prototype Routine for the HOST INFO command.
2411 *
2412 * Outputs: None.
2413 * Return: 0 if successful
2414 * -EFAULT if data unavailable
2415 * -EBUSY if previous command timeout and IOC reset is not complete.
2416 * -ENODEV if no such device/adapter
2417 * -ETIME if timer expires
2418 * -ENOMEM if memory allocation error
2419 */
2420 static int
2421 mptctl_hp_hostinfo(unsigned long arg, unsigned int data_size)
2422 {
2423 hp_host_info_t __user *uarg = (void __user *) arg;
2424 MPT_ADAPTER *ioc;
2425 struct pci_dev *pdev;
2426 char *pbuf=NULL;
2427 dma_addr_t buf_dma;
2428 hp_host_info_t karg;
2429 CONFIGPARMS cfg;
2430 ConfigPageHeader_t hdr;
2431 int iocnum;
2432 int rc, cim_rev;
2433 ToolboxIstwiReadWriteRequest_t *IstwiRWRequest;
2434 MPT_FRAME_HDR *mf = NULL;
2435 unsigned long timeleft;
2436 int retval;
2437 u32 msgcontext;
2438
2439 /* Reset long to int. Should affect IA64 and SPARC only
2440 */
2441 if (data_size == sizeof(hp_host_info_t))
2442 cim_rev = 1;
2443 else if (data_size == sizeof(hp_host_info_rev0_t))
2444 cim_rev = 0; /* obsolete */
2445 else
2446 return -EFAULT;
2447
2448 if (copy_from_user(&karg, uarg, sizeof(hp_host_info_t))) {
2449 printk(KERN_ERR MYNAM "%s@%d::mptctl_hp_host_info - "
2450 "Unable to read in hp_host_info struct @ %p\n",
2451 __FILE__, __LINE__, uarg);
2452 return -EFAULT;
2453 }
2454
2455 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
2456 (ioc == NULL)) {
2457 printk(KERN_DEBUG MYNAM "%s::mptctl_hp_hostinfo() @%d - ioc%d not found!\n",
2458 __FILE__, __LINE__, iocnum);
2459 return -ENODEV;
2460 }
2461 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT ": mptctl_hp_hostinfo called.\n",
2462 ioc->name));
2463
2464 /* Fill in the data and return the structure to the calling
2465 * program
2466 */
2467 pdev = (struct pci_dev *) ioc->pcidev;
2468
2469 karg.vendor = pdev->vendor;
2470 karg.device = pdev->device;
2471 karg.subsystem_id = pdev->subsystem_device;
2472 karg.subsystem_vendor = pdev->subsystem_vendor;
2473 karg.devfn = pdev->devfn;
2474 karg.bus = pdev->bus->number;
2475
2476 /* Save the SCSI host no. if
2477 * SCSI driver loaded
2478 */
2479 if (ioc->sh != NULL)
2480 karg.host_no = ioc->sh->host_no;
2481 else
2482 karg.host_no = -1;
2483
2484 /* Reformat the fw_version into a string */
2485 snprintf(karg.fw_version, sizeof(karg.fw_version),
2486 "%.2hhu.%.2hhu.%.2hhu.%.2hhu",
2487 ioc->facts.FWVersion.Struct.Major,
2488 ioc->facts.FWVersion.Struct.Minor,
2489 ioc->facts.FWVersion.Struct.Unit,
2490 ioc->facts.FWVersion.Struct.Dev);
2491
2492 /* Issue a config request to get the device serial number
2493 */
2494 hdr.PageVersion = 0;
2495 hdr.PageLength = 0;
2496 hdr.PageNumber = 0;
2497 hdr.PageType = MPI_CONFIG_PAGETYPE_MANUFACTURING;
2498 cfg.cfghdr.hdr = &hdr;
2499 cfg.physAddr = -1;
2500 cfg.pageAddr = 0;
2501 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
2502 cfg.dir = 0; /* read */
2503 cfg.timeout = 10;
2504
2505 strncpy(karg.serial_number, " ", 24);
2506 if (mpt_config(ioc, &cfg) == 0) {
2507 if (cfg.cfghdr.hdr->PageLength > 0) {
2508 /* Issue the second config page request */
2509 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
2510
2511 pbuf = pci_alloc_consistent(ioc->pcidev, hdr.PageLength * 4, &buf_dma);
2512 if (pbuf) {
2513 cfg.physAddr = buf_dma;
2514 if (mpt_config(ioc, &cfg) == 0) {
2515 ManufacturingPage0_t *pdata = (ManufacturingPage0_t *) pbuf;
2516 if (strlen(pdata->BoardTracerNumber) > 1) {
2517 strncpy(karg.serial_number, pdata->BoardTracerNumber, 24);
2518 karg.serial_number[24-1]='\0';
2519 }
2520 }
2521 pci_free_consistent(ioc->pcidev, hdr.PageLength * 4, pbuf, buf_dma);
2522 pbuf = NULL;
2523 }
2524 }
2525 }
2526 rc = mpt_GetIocState(ioc, 1);
2527 switch (rc) {
2528 case MPI_IOC_STATE_OPERATIONAL:
2529 karg.ioc_status = HP_STATUS_OK;
2530 break;
2531
2532 case MPI_IOC_STATE_FAULT:
2533 karg.ioc_status = HP_STATUS_FAILED;
2534 break;
2535
2536 case MPI_IOC_STATE_RESET:
2537 case MPI_IOC_STATE_READY:
2538 default:
2539 karg.ioc_status = HP_STATUS_OTHER;
2540 break;
2541 }
2542
2543 karg.base_io_addr = pci_resource_start(pdev, 0);
2544
2545 if ((ioc->bus_type == SAS) || (ioc->bus_type == FC))
2546 karg.bus_phys_width = HP_BUS_WIDTH_UNK;
2547 else
2548 karg.bus_phys_width = HP_BUS_WIDTH_16;
2549
2550 karg.hard_resets = 0;
2551 karg.soft_resets = 0;
2552 karg.timeouts = 0;
2553 if (ioc->sh != NULL) {
2554 MPT_SCSI_HOST *hd = shost_priv(ioc->sh);
2555
2556 if (hd && (cim_rev == 1)) {
2557 karg.hard_resets = ioc->hard_resets;
2558 karg.soft_resets = ioc->soft_resets;
2559 karg.timeouts = ioc->timeouts;
2560 }
2561 }
2562
2563 /*
2564 * Gather ISTWI(Industry Standard Two Wire Interface) Data
2565 */
2566 if ((mf = mpt_get_msg_frame(mptctl_id, ioc)) == NULL) {
2567 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT
2568 "%s, no msg frames!!\n", ioc->name, __func__));
2569 goto out;
2570 }
2571
2572 IstwiRWRequest = (ToolboxIstwiReadWriteRequest_t *)mf;
2573 msgcontext = IstwiRWRequest->MsgContext;
2574 memset(IstwiRWRequest,0,sizeof(ToolboxIstwiReadWriteRequest_t));
2575 IstwiRWRequest->MsgContext = msgcontext;
2576 IstwiRWRequest->Function = MPI_FUNCTION_TOOLBOX;
2577 IstwiRWRequest->Tool = MPI_TOOLBOX_ISTWI_READ_WRITE_TOOL;
2578 IstwiRWRequest->Flags = MPI_TB_ISTWI_FLAGS_READ;
2579 IstwiRWRequest->NumAddressBytes = 0x01;
2580 IstwiRWRequest->DataLength = cpu_to_le16(0x04);
2581 if (pdev->devfn & 1)
2582 IstwiRWRequest->DeviceAddr = 0xB2;
2583 else
2584 IstwiRWRequest->DeviceAddr = 0xB0;
2585
2586 pbuf = pci_alloc_consistent(ioc->pcidev, 4, &buf_dma);
2587 if (!pbuf)
2588 goto out;
2589 ioc->add_sge((char *)&IstwiRWRequest->SGL,
2590 (MPT_SGE_FLAGS_SSIMPLE_READ|4), buf_dma);
2591
2592 retval = 0;
2593 SET_MGMT_MSG_CONTEXT(ioc->ioctl_cmds.msg_context,
2594 IstwiRWRequest->MsgContext);
2595 INITIALIZE_MGMT_STATUS(ioc->ioctl_cmds.status)
2596 mpt_put_msg_frame(mptctl_id, ioc, mf);
2597
2598 retry_wait:
2599 timeleft = wait_for_completion_timeout(&ioc->ioctl_cmds.done,
2600 HZ*MPT_IOCTL_DEFAULT_TIMEOUT);
2601 if (!(ioc->ioctl_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
2602 retval = -ETIME;
2603 printk(MYIOC_s_WARN_FMT "%s: failed\n", ioc->name, __func__);
2604 if (ioc->ioctl_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) {
2605 mpt_free_msg_frame(ioc, mf);
2606 goto out;
2607 }
2608 if (!timeleft) {
2609 printk(MYIOC_s_WARN_FMT
2610 "HOST INFO command timeout, doorbell=0x%08x\n",
2611 ioc->name, mpt_GetIocState(ioc, 0));
2612 mptctl_timeout_expired(ioc, mf);
2613 } else
2614 goto retry_wait;
2615 goto out;
2616 }
2617
2618 /*
2619 *ISTWI Data Definition
2620 * pbuf[0] = FW_VERSION = 0x4
2621 * pbuf[1] = Bay Count = 6 or 4 or 2, depending on
2622 * the config, you should be seeing one out of these three values
2623 * pbuf[2] = Drive Installed Map = bit pattern depend on which
2624 * bays have drives in them
2625 * pbuf[3] = Checksum (0x100 = (byte0 + byte2 + byte3)
2626 */
2627 if (ioc->ioctl_cmds.status & MPT_MGMT_STATUS_RF_VALID)
2628 karg.rsvd = *(u32 *)pbuf;
2629
2630 out:
2631 CLEAR_MGMT_STATUS(ioc->ioctl_cmds.status)
2632 SET_MGMT_MSG_CONTEXT(ioc->ioctl_cmds.msg_context, 0);
2633
2634 if (pbuf)
2635 pci_free_consistent(ioc->pcidev, 4, pbuf, buf_dma);
2636
2637 /* Copy the data from kernel memory to user memory
2638 */
2639 if (copy_to_user((char __user *)arg, &karg, sizeof(hp_host_info_t))) {
2640 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_hpgethostinfo - "
2641 "Unable to write out hp_host_info @ %p\n",
2642 ioc->name, __FILE__, __LINE__, uarg);
2643 return -EFAULT;
2644 }
2645
2646 return 0;
2647
2648 }
2649
2650 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2651 /* Prototype Routine for the TARGET INFO command.
2652 *
2653 * Outputs: None.
2654 * Return: 0 if successful
2655 * -EFAULT if data unavailable
2656 * -EBUSY if previous command timeout and IOC reset is not complete.
2657 * -ENODEV if no such device/adapter
2658 * -ETIME if timer expires
2659 * -ENOMEM if memory allocation error
2660 */
2661 static int
2662 mptctl_hp_targetinfo(unsigned long arg)
2663 {
2664 hp_target_info_t __user *uarg = (void __user *) arg;
2665 SCSIDevicePage0_t *pg0_alloc;
2666 SCSIDevicePage3_t *pg3_alloc;
2667 MPT_ADAPTER *ioc;
2668 MPT_SCSI_HOST *hd = NULL;
2669 hp_target_info_t karg;
2670 int iocnum;
2671 int data_sz;
2672 dma_addr_t page_dma;
2673 CONFIGPARMS cfg;
2674 ConfigPageHeader_t hdr;
2675 int tmp, np, rc = 0;
2676
2677 if (copy_from_user(&karg, uarg, sizeof(hp_target_info_t))) {
2678 printk(KERN_ERR MYNAM "%s@%d::mptctl_hp_targetinfo - "
2679 "Unable to read in hp_host_targetinfo struct @ %p\n",
2680 __FILE__, __LINE__, uarg);
2681 return -EFAULT;
2682 }
2683
2684 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
2685 (ioc == NULL)) {
2686 printk(KERN_DEBUG MYNAM "%s::mptctl_hp_targetinfo() @%d - ioc%d not found!\n",
2687 __FILE__, __LINE__, iocnum);
2688 return -ENODEV;
2689 }
2690 if (karg.hdr.id >= MPT_MAX_FC_DEVICES)
2691 return -EINVAL;
2692 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_hp_targetinfo called.\n",
2693 ioc->name));
2694
2695 /* There is nothing to do for FCP parts.
2696 */
2697 if ((ioc->bus_type == SAS) || (ioc->bus_type == FC))
2698 return 0;
2699
2700 if ((ioc->spi_data.sdp0length == 0) || (ioc->sh == NULL))
2701 return 0;
2702
2703 if (ioc->sh->host_no != karg.hdr.host)
2704 return -ENODEV;
2705
2706 /* Get the data transfer speeds
2707 */
2708 data_sz = ioc->spi_data.sdp0length * 4;
2709 pg0_alloc = (SCSIDevicePage0_t *) pci_alloc_consistent(ioc->pcidev, data_sz, &page_dma);
2710 if (pg0_alloc) {
2711 hdr.PageVersion = ioc->spi_data.sdp0version;
2712 hdr.PageLength = data_sz;
2713 hdr.PageNumber = 0;
2714 hdr.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE;
2715
2716 cfg.cfghdr.hdr = &hdr;
2717 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
2718 cfg.dir = 0;
2719 cfg.timeout = 0;
2720 cfg.physAddr = page_dma;
2721
2722 cfg.pageAddr = (karg.hdr.channel << 8) | karg.hdr.id;
2723
2724 if ((rc = mpt_config(ioc, &cfg)) == 0) {
2725 np = le32_to_cpu(pg0_alloc->NegotiatedParameters);
2726 karg.negotiated_width = np & MPI_SCSIDEVPAGE0_NP_WIDE ?
2727 HP_BUS_WIDTH_16 : HP_BUS_WIDTH_8;
2728
2729 if (np & MPI_SCSIDEVPAGE0_NP_NEG_SYNC_OFFSET_MASK) {
2730 tmp = (np & MPI_SCSIDEVPAGE0_NP_NEG_SYNC_PERIOD_MASK) >> 8;
2731 if (tmp < 0x09)
2732 karg.negotiated_speed = HP_DEV_SPEED_ULTRA320;
2733 else if (tmp <= 0x09)
2734 karg.negotiated_speed = HP_DEV_SPEED_ULTRA160;
2735 else if (tmp <= 0x0A)
2736 karg.negotiated_speed = HP_DEV_SPEED_ULTRA2;
2737 else if (tmp <= 0x0C)
2738 karg.negotiated_speed = HP_DEV_SPEED_ULTRA;
2739 else if (tmp <= 0x25)
2740 karg.negotiated_speed = HP_DEV_SPEED_FAST;
2741 else
2742 karg.negotiated_speed = HP_DEV_SPEED_ASYNC;
2743 } else
2744 karg.negotiated_speed = HP_DEV_SPEED_ASYNC;
2745 }
2746
2747 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) pg0_alloc, page_dma);
2748 }
2749
2750 /* Set defaults
2751 */
2752 karg.message_rejects = -1;
2753 karg.phase_errors = -1;
2754 karg.parity_errors = -1;
2755 karg.select_timeouts = -1;
2756
2757 /* Get the target error parameters
2758 */
2759 hdr.PageVersion = 0;
2760 hdr.PageLength = 0;
2761 hdr.PageNumber = 3;
2762 hdr.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE;
2763
2764 cfg.cfghdr.hdr = &hdr;
2765 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
2766 cfg.dir = 0;
2767 cfg.timeout = 0;
2768 cfg.physAddr = -1;
2769 if ((mpt_config(ioc, &cfg) == 0) && (cfg.cfghdr.hdr->PageLength > 0)) {
2770 /* Issue the second config page request */
2771 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
2772 data_sz = (int) cfg.cfghdr.hdr->PageLength * 4;
2773 pg3_alloc = (SCSIDevicePage3_t *) pci_alloc_consistent(
2774 ioc->pcidev, data_sz, &page_dma);
2775 if (pg3_alloc) {
2776 cfg.physAddr = page_dma;
2777 cfg.pageAddr = (karg.hdr.channel << 8) | karg.hdr.id;
2778 if ((rc = mpt_config(ioc, &cfg)) == 0) {
2779 karg.message_rejects = (u32) le16_to_cpu(pg3_alloc->MsgRejectCount);
2780 karg.phase_errors = (u32) le16_to_cpu(pg3_alloc->PhaseErrorCount);
2781 karg.parity_errors = (u32) le16_to_cpu(pg3_alloc->ParityErrorCount);
2782 }
2783 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) pg3_alloc, page_dma);
2784 }
2785 }
2786 hd = shost_priv(ioc->sh);
2787 if (hd != NULL)
2788 karg.select_timeouts = hd->sel_timeout[karg.hdr.id];
2789
2790 /* Copy the data from kernel memory to user memory
2791 */
2792 if (copy_to_user((char __user *)arg, &karg, sizeof(hp_target_info_t))) {
2793 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_hp_target_info - "
2794 "Unable to write out mpt_ioctl_targetinfo struct @ %p\n",
2795 ioc->name, __FILE__, __LINE__, uarg);
2796 return -EFAULT;
2797 }
2798
2799 return 0;
2800 }
2801
2802 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2803
2804 static const struct file_operations mptctl_fops = {
2805 .owner = THIS_MODULE,
2806 .llseek = no_llseek,
2807 .fasync = mptctl_fasync,
2808 .unlocked_ioctl = mptctl_ioctl,
2809 #ifdef CONFIG_COMPAT
2810 .compat_ioctl = compat_mpctl_ioctl,
2811 #endif
2812 };
2813
2814 static struct miscdevice mptctl_miscdev = {
2815 MPT_MINOR,
2816 MYNAM,
2817 &mptctl_fops
2818 };
2819
2820 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2821
2822 #ifdef CONFIG_COMPAT
2823
2824 static int
2825 compat_mptfwxfer_ioctl(struct file *filp, unsigned int cmd,
2826 unsigned long arg)
2827 {
2828 struct mpt_fw_xfer32 kfw32;
2829 struct mpt_fw_xfer kfw;
2830 MPT_ADAPTER *iocp = NULL;
2831 int iocnum, iocnumX;
2832 int nonblock = (filp->f_flags & O_NONBLOCK);
2833 int ret;
2834
2835
2836 if (copy_from_user(&kfw32, (char __user *)arg, sizeof(kfw32)))
2837 return -EFAULT;
2838
2839 /* Verify intended MPT adapter */
2840 iocnumX = kfw32.iocnum & 0xFF;
2841 if (((iocnum = mpt_verify_adapter(iocnumX, &iocp)) < 0) ||
2842 (iocp == NULL)) {
2843 printk(KERN_DEBUG MYNAM "::compat_mptfwxfer_ioctl @%d - ioc%d not found!\n",
2844 __LINE__, iocnumX);
2845 return -ENODEV;
2846 }
2847
2848 if ((ret = mptctl_syscall_down(iocp, nonblock)) != 0)
2849 return ret;
2850
2851 dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT "compat_mptfwxfer_ioctl() called\n",
2852 iocp->name));
2853 kfw.iocnum = iocnum;
2854 kfw.fwlen = kfw32.fwlen;
2855 kfw.bufp = compat_ptr(kfw32.bufp);
2856
2857 ret = mptctl_do_fw_download(kfw.iocnum, kfw.bufp, kfw.fwlen);
2858
2859 mutex_unlock(&iocp->ioctl_cmds.mutex);
2860
2861 return ret;
2862 }
2863
2864 static int
2865 compat_mpt_command(struct file *filp, unsigned int cmd,
2866 unsigned long arg)
2867 {
2868 struct mpt_ioctl_command32 karg32;
2869 struct mpt_ioctl_command32 __user *uarg = (struct mpt_ioctl_command32 __user *) arg;
2870 struct mpt_ioctl_command karg;
2871 MPT_ADAPTER *iocp = NULL;
2872 int iocnum, iocnumX;
2873 int nonblock = (filp->f_flags & O_NONBLOCK);
2874 int ret;
2875
2876 if (copy_from_user(&karg32, (char __user *)arg, sizeof(karg32)))
2877 return -EFAULT;
2878
2879 /* Verify intended MPT adapter */
2880 iocnumX = karg32.hdr.iocnum & 0xFF;
2881 if (((iocnum = mpt_verify_adapter(iocnumX, &iocp)) < 0) ||
2882 (iocp == NULL)) {
2883 printk(KERN_DEBUG MYNAM "::compat_mpt_command @%d - ioc%d not found!\n",
2884 __LINE__, iocnumX);
2885 return -ENODEV;
2886 }
2887
2888 if ((ret = mptctl_syscall_down(iocp, nonblock)) != 0)
2889 return ret;
2890
2891 dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT "compat_mpt_command() called\n",
2892 iocp->name));
2893 /* Copy data to karg */
2894 karg.hdr.iocnum = karg32.hdr.iocnum;
2895 karg.hdr.port = karg32.hdr.port;
2896 karg.timeout = karg32.timeout;
2897 karg.maxReplyBytes = karg32.maxReplyBytes;
2898
2899 karg.dataInSize = karg32.dataInSize;
2900 karg.dataOutSize = karg32.dataOutSize;
2901 karg.maxSenseBytes = karg32.maxSenseBytes;
2902 karg.dataSgeOffset = karg32.dataSgeOffset;
2903
2904 karg.replyFrameBufPtr = (char __user *)(unsigned long)karg32.replyFrameBufPtr;
2905 karg.dataInBufPtr = (char __user *)(unsigned long)karg32.dataInBufPtr;
2906 karg.dataOutBufPtr = (char __user *)(unsigned long)karg32.dataOutBufPtr;
2907 karg.senseDataPtr = (char __user *)(unsigned long)karg32.senseDataPtr;
2908
2909 /* Pass new structure to do_mpt_command
2910 */
2911 ret = mptctl_do_mpt_command (karg, &uarg->MF);
2912
2913 mutex_unlock(&iocp->ioctl_cmds.mutex);
2914
2915 return ret;
2916 }
2917
2918 static long compat_mpctl_ioctl(struct file *f, unsigned int cmd, unsigned long arg)
2919 {
2920 long ret;
2921 mutex_lock(&mpctl_mutex);
2922 switch (cmd) {
2923 case MPTIOCINFO:
2924 case MPTIOCINFO1:
2925 case MPTIOCINFO2:
2926 case MPTTARGETINFO:
2927 case MPTEVENTQUERY:
2928 case MPTEVENTENABLE:
2929 case MPTEVENTREPORT:
2930 case MPTHARDRESET:
2931 case HP_GETHOSTINFO:
2932 case HP_GETTARGETINFO:
2933 case MPTTEST:
2934 ret = __mptctl_ioctl(f, cmd, arg);
2935 break;
2936 case MPTCOMMAND32:
2937 ret = compat_mpt_command(f, cmd, arg);
2938 break;
2939 case MPTFWDOWNLOAD32:
2940 ret = compat_mptfwxfer_ioctl(f, cmd, arg);
2941 break;
2942 default:
2943 ret = -ENOIOCTLCMD;
2944 break;
2945 }
2946 mutex_unlock(&mpctl_mutex);
2947 return ret;
2948 }
2949
2950 #endif
2951
2952
2953 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2954 /*
2955 * mptctl_probe - Installs ioctl devices per bus.
2956 * @pdev: Pointer to pci_dev structure
2957 *
2958 * Returns 0 for success, non-zero for failure.
2959 *
2960 */
2961
2962 static int
2963 mptctl_probe(struct pci_dev *pdev, const struct pci_device_id *id)
2964 {
2965 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
2966
2967 mutex_init(&ioc->ioctl_cmds.mutex);
2968 init_completion(&ioc->ioctl_cmds.done);
2969 return 0;
2970 }
2971
2972 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2973 /*
2974 * mptctl_remove - Removed ioctl devices
2975 * @pdev: Pointer to pci_dev structure
2976 *
2977 *
2978 */
2979 static void
2980 mptctl_remove(struct pci_dev *pdev)
2981 {
2982 }
2983
2984 static struct mpt_pci_driver mptctl_driver = {
2985 .probe = mptctl_probe,
2986 .remove = mptctl_remove,
2987 };
2988
2989 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2990 static int __init mptctl_init(void)
2991 {
2992 int err;
2993 int where = 1;
2994
2995 show_mptmod_ver(my_NAME, my_VERSION);
2996
2997 mpt_device_driver_register(&mptctl_driver, MPTCTL_DRIVER);
2998
2999 /* Register this device */
3000 err = misc_register(&mptctl_miscdev);
3001 if (err < 0) {
3002 printk(KERN_ERR MYNAM ": Can't register misc device [minor=%d].\n", MPT_MINOR);
3003 goto out_fail;
3004 }
3005 printk(KERN_INFO MYNAM ": Registered with Fusion MPT base driver\n");
3006 printk(KERN_INFO MYNAM ": /dev/%s @ (major,minor=%d,%d)\n",
3007 mptctl_miscdev.name, MISC_MAJOR, mptctl_miscdev.minor);
3008
3009 /*
3010 * Install our handler
3011 */
3012 ++where;
3013 mptctl_id = mpt_register(mptctl_reply, MPTCTL_DRIVER,
3014 "mptctl_reply");
3015 if (!mptctl_id || mptctl_id >= MPT_MAX_PROTOCOL_DRIVERS) {
3016 printk(KERN_ERR MYNAM ": ERROR: Failed to register with Fusion MPT base driver\n");
3017 misc_deregister(&mptctl_miscdev);
3018 err = -EBUSY;
3019 goto out_fail;
3020 }
3021
3022 mptctl_taskmgmt_id = mpt_register(mptctl_taskmgmt_reply, MPTCTL_DRIVER,
3023 "mptctl_taskmgmt_reply");
3024 if (!mptctl_taskmgmt_id || mptctl_taskmgmt_id >= MPT_MAX_PROTOCOL_DRIVERS) {
3025 printk(KERN_ERR MYNAM ": ERROR: Failed to register with Fusion MPT base driver\n");
3026 mpt_deregister(mptctl_id);
3027 misc_deregister(&mptctl_miscdev);
3028 err = -EBUSY;
3029 goto out_fail;
3030 }
3031
3032 mpt_reset_register(mptctl_id, mptctl_ioc_reset);
3033 mpt_event_register(mptctl_id, mptctl_event_process);
3034
3035 return 0;
3036
3037 out_fail:
3038
3039 mpt_device_driver_deregister(MPTCTL_DRIVER);
3040
3041 return err;
3042 }
3043
3044 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
3045 static void mptctl_exit(void)
3046 {
3047 misc_deregister(&mptctl_miscdev);
3048 printk(KERN_INFO MYNAM ": Deregistered /dev/%s @ (major,minor=%d,%d)\n",
3049 mptctl_miscdev.name, MISC_MAJOR, mptctl_miscdev.minor);
3050
3051 /* De-register event handler from base module */
3052 mpt_event_deregister(mptctl_id);
3053
3054 /* De-register reset handler from base module */
3055 mpt_reset_deregister(mptctl_id);
3056
3057 /* De-register callback handler from base module */
3058 mpt_deregister(mptctl_taskmgmt_id);
3059 mpt_deregister(mptctl_id);
3060
3061 mpt_device_driver_deregister(MPTCTL_DRIVER);
3062
3063 }
3064
3065 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
3066
3067 module_init(mptctl_init);
3068 module_exit(mptctl_exit);
CRIS linux kernel tree