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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 <asm/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
79MODULE_AUTHOR(MODULEAUTHOR);
80MODULE_DESCRIPTION(my_NAME);
81MODULE_LICENSE("GPL");
82MODULE_VERSION(my_VERSION);
83
84/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
85
86static DEFINE_MUTEX(mpctl_mutex);
87static u8 mptctl_id = MPT_MAX_PROTOCOL_DRIVERS;
88static u8 mptctl_taskmgmt_id = MPT_MAX_PROTOCOL_DRIVERS;
89
90static DECLARE_WAIT_QUEUE_HEAD ( mptctl_wait );
91
92/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
93
94struct 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 */
103static int mptctl_fw_download(unsigned long arg);
104static int mptctl_getiocinfo(unsigned long arg, unsigned int cmd);
105static int mptctl_gettargetinfo(unsigned long arg);
106static int mptctl_readtest(unsigned long arg);
107static int mptctl_mpt_command(unsigned long arg);
108static int mptctl_eventquery(unsigned long arg);
109static int mptctl_eventenable(unsigned long arg);
110static int mptctl_eventreport(unsigned long arg);
111static int mptctl_replace_fw(unsigned long arg);
112
113static int mptctl_do_reset(unsigned long arg);
114static int mptctl_hp_hostinfo(unsigned long arg, unsigned int cmd);
115static int mptctl_hp_targetinfo(unsigned long arg);
116
117static int mptctl_probe(struct pci_dev *, const struct pci_device_id *);
118static void mptctl_remove(struct pci_dev *);
119
120#ifdef CONFIG_COMPAT
121static long compat_mpctl_ioctl(struct file *f, unsigned cmd, unsigned long arg);
122#endif
123/*
124 * Private function calls.
125 */
126static int mptctl_do_mpt_command(struct mpt_ioctl_command karg, void __user *mfPtr);
127static int mptctl_do_fw_download(int ioc, char __user *ufwbuf, size_t fwlen);
128static 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);
130static 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 */
136static int mptctl_ioc_reset(MPT_ADAPTER *ioc, int reset_phase);
137
138/*
139 * Event Handler function
140 */
141static int mptctl_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply);
142static 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 */
178static inline int
179mptctl_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 */
200static int
201mptctl_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
285static int
286mptctl_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
315static int
316mptctl_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 */
462static void
463mptctl_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 */
523static int
524mptctl_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 */
552static int
553mptctl_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
599static int
600mptctl_release(struct inode *inode, struct file *filep)
601{
602 fasync_helper(-1, filep, 0, &async_queue);
603 return 0;
604}
605
606static int
607mptctl_fasync(int fd, struct file *filep, int mode)
608{
609 MPT_ADAPTER *ioc;
610 int ret;
611
612 mutex_lock(&mpctl_mutex);
613 list_for_each_entry(ioc, &ioc_list, list)
614 ioc->aen_event_read_flag=0;
615
616 ret = fasync_helper(fd, filep, mode, &async_queue);
617 mutex_unlock(&mpctl_mutex);
618 return ret;
619}
620
621/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
622/*
623 * MPT ioctl handler
624 * cmd - specify the particular IOCTL command to be issued
625 * arg - data specific to the command. Must not be null.
626 */
627static long
628__mptctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
629{
630 mpt_ioctl_header __user *uhdr = (void __user *) arg;
631 mpt_ioctl_header khdr;
632 int iocnum;
633 unsigned iocnumX;
634 int nonblock = (file->f_flags & O_NONBLOCK);
635 int ret;
636 MPT_ADAPTER *iocp = NULL;
637
638 if (copy_from_user(&khdr, uhdr, sizeof(khdr))) {
639 printk(KERN_ERR MYNAM "%s::mptctl_ioctl() @%d - "
640 "Unable to copy mpt_ioctl_header data @ %p\n",
641 __FILE__, __LINE__, uhdr);
642 return -EFAULT;
643 }
644 ret = -ENXIO; /* (-6) No such device or address */
645
646 /* Verify intended MPT adapter - set iocnum and the adapter
647 * pointer (iocp)
648 */
649 iocnumX = khdr.iocnum & 0xFF;
650 if (((iocnum = mpt_verify_adapter(iocnumX, &iocp)) < 0) ||
651 (iocp == NULL))
652 return -ENODEV;
653
654 if (!iocp->active) {
655 printk(KERN_DEBUG MYNAM "%s::mptctl_ioctl() @%d - Controller disabled.\n",
656 __FILE__, __LINE__);
657 return -EFAULT;
658 }
659
660 /* Handle those commands that are just returning
661 * information stored in the driver.
662 * These commands should never time out and are unaffected
663 * by TM and FW reloads.
664 */
665 if ((cmd & ~IOCSIZE_MASK) == (MPTIOCINFO & ~IOCSIZE_MASK)) {
666 return mptctl_getiocinfo(arg, _IOC_SIZE(cmd));
667 } else if (cmd == MPTTARGETINFO) {
668 return mptctl_gettargetinfo(arg);
669 } else if (cmd == MPTTEST) {
670 return mptctl_readtest(arg);
671 } else if (cmd == MPTEVENTQUERY) {
672 return mptctl_eventquery(arg);
673 } else if (cmd == MPTEVENTENABLE) {
674 return mptctl_eventenable(arg);
675 } else if (cmd == MPTEVENTREPORT) {
676 return mptctl_eventreport(arg);
677 } else if (cmd == MPTFWREPLACE) {
678 return mptctl_replace_fw(arg);
679 }
680
681 /* All of these commands require an interrupt or
682 * are unknown/illegal.
683 */
684 if ((ret = mptctl_syscall_down(iocp, nonblock)) != 0)
685 return ret;
686
687 if (cmd == MPTFWDOWNLOAD)
688 ret = mptctl_fw_download(arg);
689 else if (cmd == MPTCOMMAND)
690 ret = mptctl_mpt_command(arg);
691 else if (cmd == MPTHARDRESET)
692 ret = mptctl_do_reset(arg);
693 else if ((cmd & ~IOCSIZE_MASK) == (HP_GETHOSTINFO & ~IOCSIZE_MASK))
694 ret = mptctl_hp_hostinfo(arg, _IOC_SIZE(cmd));
695 else if (cmd == HP_GETTARGETINFO)
696 ret = mptctl_hp_targetinfo(arg);
697 else
698 ret = -EINVAL;
699
700 mutex_unlock(&iocp->ioctl_cmds.mutex);
701
702 return ret;
703}
704
705static long
706mptctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
707{
708 long ret;
709 mutex_lock(&mpctl_mutex);
710 ret = __mptctl_ioctl(file, cmd, arg);
711 mutex_unlock(&mpctl_mutex);
712 return ret;
713}
714
715static int mptctl_do_reset(unsigned long arg)
716{
717 struct mpt_ioctl_diag_reset __user *urinfo = (void __user *) arg;
718 struct mpt_ioctl_diag_reset krinfo;
719 MPT_ADAPTER *iocp;
720
721 if (copy_from_user(&krinfo, urinfo, sizeof(struct mpt_ioctl_diag_reset))) {
722 printk(KERN_ERR MYNAM "%s@%d::mptctl_do_reset - "
723 "Unable to copy mpt_ioctl_diag_reset struct @ %p\n",
724 __FILE__, __LINE__, urinfo);
725 return -EFAULT;
726 }
727
728 if (mpt_verify_adapter(krinfo.hdr.iocnum, &iocp) < 0) {
729 printk(KERN_DEBUG MYNAM "%s@%d::mptctl_do_reset - ioc%d not found!\n",
730 __FILE__, __LINE__, krinfo.hdr.iocnum);
731 return -ENODEV; /* (-6) No such device or address */
732 }
733
734 dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT "mptctl_do_reset called.\n",
735 iocp->name));
736
737 if (mpt_HardResetHandler(iocp, CAN_SLEEP) != 0) {
738 printk (MYIOC_s_ERR_FMT "%s@%d::mptctl_do_reset - reset failed.\n",
739 iocp->name, __FILE__, __LINE__);
740 return -1;
741 }
742
743 return 0;
744}
745
746/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
747/*
748 * MPT FW download function. Cast the arg into the mpt_fw_xfer structure.
749 * This structure contains: iocnum, firmware length (bytes),
750 * pointer to user space memory where the fw image is stored.
751 *
752 * Outputs: None.
753 * Return: 0 if successful
754 * -EFAULT if data unavailable
755 * -ENXIO if no such device
756 * -EAGAIN if resource problem
757 * -ENOMEM if no memory for SGE
758 * -EMLINK if too many chain buffers required
759 * -EBADRQC if adapter does not support FW download
760 * -EBUSY if adapter is busy
761 * -ENOMSG if FW upload returned bad status
762 */
763static int
764mptctl_fw_download(unsigned long arg)
765{
766 struct mpt_fw_xfer __user *ufwdl = (void __user *) arg;
767 struct mpt_fw_xfer kfwdl;
768
769 if (copy_from_user(&kfwdl, ufwdl, sizeof(struct mpt_fw_xfer))) {
770 printk(KERN_ERR MYNAM "%s@%d::_ioctl_fwdl - "
771 "Unable to copy mpt_fw_xfer struct @ %p\n",
772 __FILE__, __LINE__, ufwdl);
773 return -EFAULT;
774 }
775
776 return mptctl_do_fw_download(kfwdl.iocnum, kfwdl.bufp, kfwdl.fwlen);
777}
778
779/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
780/*
781 * FW Download engine.
782 * Outputs: None.
783 * Return: 0 if successful
784 * -EFAULT if data unavailable
785 * -ENXIO if no such device
786 * -EAGAIN if resource problem
787 * -ENOMEM if no memory for SGE
788 * -EMLINK if too many chain buffers required
789 * -EBADRQC if adapter does not support FW download
790 * -EBUSY if adapter is busy
791 * -ENOMSG if FW upload returned bad status
792 */
793static int
794mptctl_do_fw_download(int ioc, char __user *ufwbuf, size_t fwlen)
795{
796 FWDownload_t *dlmsg;
797 MPT_FRAME_HDR *mf;
798 MPT_ADAPTER *iocp;
799 FWDownloadTCSGE_t *ptsge;
800 MptSge_t *sgl, *sgIn;
801 char *sgOut;
802 struct buflist *buflist;
803 struct buflist *bl;
804 dma_addr_t sgl_dma;
805 int ret;
806 int numfrags = 0;
807 int maxfrags;
808 int n = 0;
809 u32 sgdir;
810 u32 nib;
811 int fw_bytes_copied = 0;
812 int i;
813 int sge_offset = 0;
814 u16 iocstat;
815 pFWDownloadReply_t ReplyMsg = NULL;
816 unsigned long timeleft;
817
818 if (mpt_verify_adapter(ioc, &iocp) < 0) {
819 printk(KERN_DEBUG MYNAM "ioctl_fwdl - ioc%d not found!\n",
820 ioc);
821 return -ENODEV; /* (-6) No such device or address */
822 } else {
823
824 /* Valid device. Get a message frame and construct the FW download message.
825 */
826 if ((mf = mpt_get_msg_frame(mptctl_id, iocp)) == NULL)
827 return -EAGAIN;
828 }
829
830 dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT
831 "mptctl_do_fwdl called. mptctl_id = %xh.\n", iocp->name, mptctl_id));
832 dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT "DbG: kfwdl.bufp = %p\n",
833 iocp->name, ufwbuf));
834 dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT "DbG: kfwdl.fwlen = %d\n",
835 iocp->name, (int)fwlen));
836 dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT "DbG: kfwdl.ioc = %04xh\n",
837 iocp->name, ioc));
838
839 dlmsg = (FWDownload_t*) mf;
840 ptsge = (FWDownloadTCSGE_t *) &dlmsg->SGL;
841 sgOut = (char *) (ptsge + 1);
842
843 /*
844 * Construct f/w download request
845 */
846 dlmsg->ImageType = MPI_FW_DOWNLOAD_ITYPE_FW;
847 dlmsg->Reserved = 0;
848 dlmsg->ChainOffset = 0;
849 dlmsg->Function = MPI_FUNCTION_FW_DOWNLOAD;
850 dlmsg->Reserved1[0] = dlmsg->Reserved1[1] = dlmsg->Reserved1[2] = 0;
851 if (iocp->facts.MsgVersion >= MPI_VERSION_01_05)
852 dlmsg->MsgFlags = MPI_FW_DOWNLOAD_MSGFLGS_LAST_SEGMENT;
853 else
854 dlmsg->MsgFlags = 0;
855
856
857 /* Set up the Transaction SGE.
858 */
859 ptsge->Reserved = 0;
860 ptsge->ContextSize = 0;
861 ptsge->DetailsLength = 12;
862 ptsge->Flags = MPI_SGE_FLAGS_TRANSACTION_ELEMENT;
863 ptsge->Reserved_0100_Checksum = 0;
864 ptsge->ImageOffset = 0;
865 ptsge->ImageSize = cpu_to_le32(fwlen);
866
867 /* Add the SGL
868 */
869
870 /*
871 * Need to kmalloc area(s) for holding firmware image bytes.
872 * But we need to do it piece meal, using a proper
873 * scatter gather list (with 128kB MAX hunks).
874 *
875 * A practical limit here might be # of sg hunks that fit into
876 * a single IOC request frame; 12 or 8 (see below), so:
877 * For FC9xx: 12 x 128kB == 1.5 mB (max)
878 * For C1030: 8 x 128kB == 1 mB (max)
879 * We could support chaining, but things get ugly(ier:)
880 *
881 * Set the sge_offset to the start of the sgl (bytes).
882 */
883 sgdir = 0x04000000; /* IOC will READ from sys mem */
884 sge_offset = sizeof(MPIHeader_t) + sizeof(FWDownloadTCSGE_t);
885 if ((sgl = kbuf_alloc_2_sgl(fwlen, sgdir, sge_offset,
886 &numfrags, &buflist, &sgl_dma, iocp)) == NULL)
887 return -ENOMEM;
888
889 /*
890 * We should only need SGL with 2 simple_32bit entries (up to 256 kB)
891 * for FC9xx f/w image, but calculate max number of sge hunks
892 * we can fit into a request frame, and limit ourselves to that.
893 * (currently no chain support)
894 * maxfrags = (Request Size - FWdownload Size ) / Size of 32 bit SGE
895 * Request maxfrags
896 * 128 12
897 * 96 8
898 * 64 4
899 */
900 maxfrags = (iocp->req_sz - sizeof(MPIHeader_t) -
901 sizeof(FWDownloadTCSGE_t))
902 / iocp->SGE_size;
903 if (numfrags > maxfrags) {
904 ret = -EMLINK;
905 goto fwdl_out;
906 }
907
908 dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT "DbG: sgl buffer = %p, sgfrags = %d\n",
909 iocp->name, sgl, numfrags));
910
911 /*
912 * Parse SG list, copying sgl itself,
913 * plus f/w image hunks from user space as we go...
914 */
915 ret = -EFAULT;
916 sgIn = sgl;
917 bl = buflist;
918 for (i=0; i < numfrags; i++) {
919
920 /* Get the SGE type: 0 - TCSGE, 3 - Chain, 1 - Simple SGE
921 * Skip everything but Simple. If simple, copy from
922 * user space into kernel space.
923 * Note: we should not have anything but Simple as
924 * Chain SGE are illegal.
925 */
926 nib = (sgIn->FlagsLength & 0x30000000) >> 28;
927 if (nib == 0 || nib == 3) {
928 ;
929 } else if (sgIn->Address) {
930 iocp->add_sge(sgOut, sgIn->FlagsLength, sgIn->Address);
931 n++;
932 if (copy_from_user(bl->kptr, ufwbuf+fw_bytes_copied, bl->len)) {
933 printk(MYIOC_s_ERR_FMT "%s@%d::_ioctl_fwdl - "
934 "Unable to copy f/w buffer hunk#%d @ %p\n",
935 iocp->name, __FILE__, __LINE__, n, ufwbuf);
936 goto fwdl_out;
937 }
938 fw_bytes_copied += bl->len;
939 }
940 sgIn++;
941 bl++;
942 sgOut += iocp->SGE_size;
943 }
944
945 DBG_DUMP_FW_DOWNLOAD(iocp, (u32 *)mf, numfrags);
946
947 /*
948 * Finally, perform firmware download.
949 */
950 ReplyMsg = NULL;
951 SET_MGMT_MSG_CONTEXT(iocp->ioctl_cmds.msg_context, dlmsg->MsgContext);
952 INITIALIZE_MGMT_STATUS(iocp->ioctl_cmds.status)
953 mpt_put_msg_frame(mptctl_id, iocp, mf);
954
955 /* Now wait for the command to complete */
956retry_wait:
957 timeleft = wait_for_completion_timeout(&iocp->ioctl_cmds.done, HZ*60);
958 if (!(iocp->ioctl_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
959 ret = -ETIME;
960 printk(MYIOC_s_WARN_FMT "%s: failed\n", iocp->name, __func__);
961 if (iocp->ioctl_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) {
962 mpt_free_msg_frame(iocp, mf);
963 goto fwdl_out;
964 }
965 if (!timeleft) {
966 printk(MYIOC_s_WARN_FMT
967 "FW download timeout, doorbell=0x%08x\n",
968 iocp->name, mpt_GetIocState(iocp, 0));
969 mptctl_timeout_expired(iocp, mf);
970 } else
971 goto retry_wait;
972 goto fwdl_out;
973 }
974
975 if (!(iocp->ioctl_cmds.status & MPT_MGMT_STATUS_RF_VALID)) {
976 printk(MYIOC_s_WARN_FMT "%s: failed\n", iocp->name, __func__);
977 mpt_free_msg_frame(iocp, mf);
978 ret = -ENODATA;
979 goto fwdl_out;
980 }
981
982 if (sgl)
983 kfree_sgl(sgl, sgl_dma, buflist, iocp);
984
985 ReplyMsg = (pFWDownloadReply_t)iocp->ioctl_cmds.reply;
986 iocstat = le16_to_cpu(ReplyMsg->IOCStatus) & MPI_IOCSTATUS_MASK;
987 if (iocstat == MPI_IOCSTATUS_SUCCESS) {
988 printk(MYIOC_s_INFO_FMT "F/W update successful!\n", iocp->name);
989 return 0;
990 } else if (iocstat == MPI_IOCSTATUS_INVALID_FUNCTION) {
991 printk(MYIOC_s_WARN_FMT "Hmmm... F/W download not supported!?!\n",
992 iocp->name);
993 printk(MYIOC_s_WARN_FMT "(time to go bang on somebodies door)\n",
994 iocp->name);
995 return -EBADRQC;
996 } else if (iocstat == MPI_IOCSTATUS_BUSY) {
997 printk(MYIOC_s_WARN_FMT "IOC_BUSY!\n", iocp->name);
998 printk(MYIOC_s_WARN_FMT "(try again later?)\n", iocp->name);
999 return -EBUSY;
1000 } else {
1001 printk(MYIOC_s_WARN_FMT "ioctl_fwdl() returned [bad] status = %04xh\n",
1002 iocp->name, iocstat);
1003 printk(MYIOC_s_WARN_FMT "(bad VooDoo)\n", iocp->name);
1004 return -ENOMSG;
1005 }
1006 return 0;
1007
1008fwdl_out:
1009
1010 CLEAR_MGMT_STATUS(iocp->ioctl_cmds.status);
1011 SET_MGMT_MSG_CONTEXT(iocp->ioctl_cmds.msg_context, 0);
1012 kfree_sgl(sgl, sgl_dma, buflist, iocp);
1013 return ret;
1014}
1015
1016/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1017/*
1018 * SGE Allocation routine
1019 *
1020 * Inputs: bytes - number of bytes to be transferred
1021 * sgdir - data direction
1022 * sge_offset - offset (in bytes) from the start of the request
1023 * frame to the first SGE
1024 * ioc - pointer to the mptadapter
1025 * Outputs: frags - number of scatter gather elements
1026 * blp - point to the buflist pointer
1027 * sglbuf_dma - pointer to the (dma) sgl
1028 * Returns: Null if failes
1029 * pointer to the (virtual) sgl if successful.
1030 */
1031static MptSge_t *
1032kbuf_alloc_2_sgl(int bytes, u32 sgdir, int sge_offset, int *frags,
1033 struct buflist **blp, dma_addr_t *sglbuf_dma, MPT_ADAPTER *ioc)
1034{
1035 MptSge_t *sglbuf = NULL; /* pointer to array of SGE */
1036 /* and chain buffers */
1037 struct buflist *buflist = NULL; /* kernel routine */
1038 MptSge_t *sgl;
1039 int numfrags = 0;
1040 int fragcnt = 0;
1041 int alloc_sz = min(bytes,MAX_KMALLOC_SZ); // avoid kernel warning msg!
1042 int bytes_allocd = 0;
1043 int this_alloc;
1044 dma_addr_t pa; // phys addr
1045 int i, buflist_ent;
1046 int sg_spill = MAX_FRAGS_SPILL1;
1047 int dir;
1048 /* initialization */
1049 *frags = 0;
1050 *blp = NULL;
1051
1052 /* Allocate and initialize an array of kernel
1053 * structures for the SG elements.
1054 */
1055 i = MAX_SGL_BYTES / 8;
1056 buflist = kzalloc(i, GFP_USER);
1057 if (!buflist)
1058 return NULL;
1059 buflist_ent = 0;
1060
1061 /* Allocate a single block of memory to store the sg elements and
1062 * the chain buffers. The calling routine is responsible for
1063 * copying the data in this array into the correct place in the
1064 * request and chain buffers.
1065 */
1066 sglbuf = pci_alloc_consistent(ioc->pcidev, MAX_SGL_BYTES, sglbuf_dma);
1067 if (sglbuf == NULL)
1068 goto free_and_fail;
1069
1070 if (sgdir & 0x04000000)
1071 dir = PCI_DMA_TODEVICE;
1072 else
1073 dir = PCI_DMA_FROMDEVICE;
1074
1075 /* At start:
1076 * sgl = sglbuf = point to beginning of sg buffer
1077 * buflist_ent = 0 = first kernel structure
1078 * sg_spill = number of SGE that can be written before the first
1079 * chain element.
1080 *
1081 */
1082 sgl = sglbuf;
1083 sg_spill = ((ioc->req_sz - sge_offset)/ioc->SGE_size) - 1;
1084 while (bytes_allocd < bytes) {
1085 this_alloc = min(alloc_sz, bytes-bytes_allocd);
1086 buflist[buflist_ent].len = this_alloc;
1087 buflist[buflist_ent].kptr = pci_alloc_consistent(ioc->pcidev,
1088 this_alloc,
1089 &pa);
1090 if (buflist[buflist_ent].kptr == NULL) {
1091 alloc_sz = alloc_sz / 2;
1092 if (alloc_sz == 0) {
1093 printk(MYIOC_s_WARN_FMT "-SG: No can do - "
1094 "not enough memory! :-(\n", ioc->name);
1095 printk(MYIOC_s_WARN_FMT "-SG: (freeing %d frags)\n",
1096 ioc->name, numfrags);
1097 goto free_and_fail;
1098 }
1099 continue;
1100 } else {
1101 dma_addr_t dma_addr;
1102
1103 bytes_allocd += this_alloc;
1104 sgl->FlagsLength = (0x10000000|sgdir|this_alloc);
1105 dma_addr = pci_map_single(ioc->pcidev,
1106 buflist[buflist_ent].kptr, this_alloc, dir);
1107 sgl->Address = dma_addr;
1108
1109 fragcnt++;
1110 numfrags++;
1111 sgl++;
1112 buflist_ent++;
1113 }
1114
1115 if (bytes_allocd >= bytes)
1116 break;
1117
1118 /* Need to chain? */
1119 if (fragcnt == sg_spill) {
1120 printk(MYIOC_s_WARN_FMT
1121 "-SG: No can do - " "Chain required! :-(\n", ioc->name);
1122 printk(MYIOC_s_WARN_FMT "(freeing %d frags)\n", ioc->name, numfrags);
1123 goto free_and_fail;
1124 }
1125
1126 /* overflow check... */
1127 if (numfrags*8 > MAX_SGL_BYTES){
1128 /* GRRRRR... */
1129 printk(MYIOC_s_WARN_FMT "-SG: No can do - "
1130 "too many SG frags! :-(\n", ioc->name);
1131 printk(MYIOC_s_WARN_FMT "-SG: (freeing %d frags)\n",
1132 ioc->name, numfrags);
1133 goto free_and_fail;
1134 }
1135 }
1136
1137 /* Last sge fixup: set LE+eol+eob bits */
1138 sgl[-1].FlagsLength |= 0xC1000000;
1139
1140 *frags = numfrags;
1141 *blp = buflist;
1142
1143 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "-SG: kbuf_alloc_2_sgl() - "
1144 "%d SG frags generated!\n", ioc->name, numfrags));
1145
1146 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "-SG: kbuf_alloc_2_sgl() - "
1147 "last (big) alloc_sz=%d\n", ioc->name, alloc_sz));
1148
1149 return sglbuf;
1150
1151free_and_fail:
1152 if (sglbuf != NULL) {
1153 for (i = 0; i < numfrags; i++) {
1154 dma_addr_t dma_addr;
1155 u8 *kptr;
1156 int len;
1157
1158 if ((sglbuf[i].FlagsLength >> 24) == 0x30)
1159 continue;
1160
1161 dma_addr = sglbuf[i].Address;
1162 kptr = buflist[i].kptr;
1163 len = buflist[i].len;
1164
1165 pci_free_consistent(ioc->pcidev, len, kptr, dma_addr);
1166 }
1167 pci_free_consistent(ioc->pcidev, MAX_SGL_BYTES, sglbuf, *sglbuf_dma);
1168 }
1169 kfree(buflist);
1170 return NULL;
1171}
1172
1173/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1174/*
1175 * Routine to free the SGL elements.
1176 */
1177static void
1178kfree_sgl(MptSge_t *sgl, dma_addr_t sgl_dma, struct buflist *buflist, MPT_ADAPTER *ioc)
1179{
1180 MptSge_t *sg = sgl;
1181 struct buflist *bl = buflist;
1182 u32 nib;
1183 int dir;
1184 int n = 0;
1185
1186 if (sg->FlagsLength & 0x04000000)
1187 dir = PCI_DMA_TODEVICE;
1188 else
1189 dir = PCI_DMA_FROMDEVICE;
1190
1191 nib = (sg->FlagsLength & 0xF0000000) >> 28;
1192 while (! (nib & 0x4)) { /* eob */
1193 /* skip ignore/chain. */
1194 if (nib == 0 || nib == 3) {
1195 ;
1196 } else if (sg->Address) {
1197 dma_addr_t dma_addr;
1198 void *kptr;
1199 int len;
1200
1201 dma_addr = sg->Address;
1202 kptr = bl->kptr;
1203 len = bl->len;
1204 pci_unmap_single(ioc->pcidev, dma_addr, len, dir);
1205 pci_free_consistent(ioc->pcidev, len, kptr, dma_addr);
1206 n++;
1207 }
1208 sg++;
1209 bl++;
1210 nib = (le32_to_cpu(sg->FlagsLength) & 0xF0000000) >> 28;
1211 }
1212
1213 /* we're at eob! */
1214 if (sg->Address) {
1215 dma_addr_t dma_addr;
1216 void *kptr;
1217 int len;
1218
1219 dma_addr = sg->Address;
1220 kptr = bl->kptr;
1221 len = bl->len;
1222 pci_unmap_single(ioc->pcidev, dma_addr, len, dir);
1223 pci_free_consistent(ioc->pcidev, len, kptr, dma_addr);
1224 n++;
1225 }
1226
1227 pci_free_consistent(ioc->pcidev, MAX_SGL_BYTES, sgl, sgl_dma);
1228 kfree(buflist);
1229 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "-SG: Free'd 1 SGL buf + %d kbufs!\n",
1230 ioc->name, n));
1231}
1232
1233/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1234/*
1235 * mptctl_getiocinfo - Query the host adapter for IOC information.
1236 * @arg: User space argument
1237 *
1238 * Outputs: None.
1239 * Return: 0 if successful
1240 * -EFAULT if data unavailable
1241 * -ENODEV if no such device/adapter
1242 */
1243static int
1244mptctl_getiocinfo (unsigned long arg, unsigned int data_size)
1245{
1246 struct mpt_ioctl_iocinfo __user *uarg = (void __user *) arg;
1247 struct mpt_ioctl_iocinfo *karg;
1248 MPT_ADAPTER *ioc;
1249 struct pci_dev *pdev;
1250 int iocnum;
1251 unsigned int port;
1252 int cim_rev;
1253 struct scsi_device *sdev;
1254 VirtDevice *vdevice;
1255
1256 /* Add of PCI INFO results in unaligned access for
1257 * IA64 and Sparc. Reset long to int. Return no PCI
1258 * data for obsolete format.
1259 */
1260 if (data_size == sizeof(struct mpt_ioctl_iocinfo_rev0))
1261 cim_rev = 0;
1262 else if (data_size == sizeof(struct mpt_ioctl_iocinfo_rev1))
1263 cim_rev = 1;
1264 else if (data_size == sizeof(struct mpt_ioctl_iocinfo))
1265 cim_rev = 2;
1266 else if (data_size == (sizeof(struct mpt_ioctl_iocinfo_rev0)+12))
1267 cim_rev = 0; /* obsolete */
1268 else
1269 return -EFAULT;
1270
1271 karg = kmalloc(data_size, GFP_KERNEL);
1272 if (karg == NULL) {
1273 printk(KERN_ERR MYNAM "%s::mpt_ioctl_iocinfo() @%d - no memory available!\n",
1274 __FILE__, __LINE__);
1275 return -ENOMEM;
1276 }
1277
1278 if (copy_from_user(karg, uarg, data_size)) {
1279 printk(KERN_ERR MYNAM "%s@%d::mptctl_getiocinfo - "
1280 "Unable to read in mpt_ioctl_iocinfo struct @ %p\n",
1281 __FILE__, __LINE__, uarg);
1282 kfree(karg);
1283 return -EFAULT;
1284 }
1285
1286 if (((iocnum = mpt_verify_adapter(karg->hdr.iocnum, &ioc)) < 0) ||
1287 (ioc == NULL)) {
1288 printk(KERN_DEBUG MYNAM "%s::mptctl_getiocinfo() @%d - ioc%d not found!\n",
1289 __FILE__, __LINE__, iocnum);
1290 kfree(karg);
1291 return -ENODEV;
1292 }
1293
1294 /* Verify the data transfer size is correct. */
1295 if (karg->hdr.maxDataSize != data_size) {
1296 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_getiocinfo - "
1297 "Structure size mismatch. Command not completed.\n",
1298 ioc->name, __FILE__, __LINE__);
1299 kfree(karg);
1300 return -EFAULT;
1301 }
1302
1303 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_getiocinfo called.\n",
1304 ioc->name));
1305
1306 /* Fill in the data and return the structure to the calling
1307 * program
1308 */
1309 if (ioc->bus_type == SAS)
1310 karg->adapterType = MPT_IOCTL_INTERFACE_SAS;
1311 else if (ioc->bus_type == FC)
1312 karg->adapterType = MPT_IOCTL_INTERFACE_FC;
1313 else
1314 karg->adapterType = MPT_IOCTL_INTERFACE_SCSI;
1315
1316 if (karg->hdr.port > 1) {
1317 kfree(karg);
1318 return -EINVAL;
1319 }
1320 port = karg->hdr.port;
1321
1322 karg->port = port;
1323 pdev = (struct pci_dev *) ioc->pcidev;
1324
1325 karg->pciId = pdev->device;
1326 karg->hwRev = pdev->revision;
1327 karg->subSystemDevice = pdev->subsystem_device;
1328 karg->subSystemVendor = pdev->subsystem_vendor;
1329
1330 if (cim_rev == 1) {
1331 /* Get the PCI bus, device, and function numbers for the IOC
1332 */
1333 karg->pciInfo.u.bits.busNumber = pdev->bus->number;
1334 karg->pciInfo.u.bits.deviceNumber = PCI_SLOT( pdev->devfn );
1335 karg->pciInfo.u.bits.functionNumber = PCI_FUNC( pdev->devfn );
1336 } else if (cim_rev == 2) {
1337 /* Get the PCI bus, device, function and segment ID numbers
1338 for the IOC */
1339 karg->pciInfo.u.bits.busNumber = pdev->bus->number;
1340 karg->pciInfo.u.bits.deviceNumber = PCI_SLOT( pdev->devfn );
1341 karg->pciInfo.u.bits.functionNumber = PCI_FUNC( pdev->devfn );
1342 karg->pciInfo.segmentID = pci_domain_nr(pdev->bus);
1343 }
1344
1345 /* Get number of devices
1346 */
1347 karg->numDevices = 0;
1348 if (ioc->sh) {
1349 shost_for_each_device(sdev, ioc->sh) {
1350 vdevice = sdev->hostdata;
1351 if (vdevice == NULL || vdevice->vtarget == NULL)
1352 continue;
1353 if (vdevice->vtarget->tflags &
1354 MPT_TARGET_FLAGS_RAID_COMPONENT)
1355 continue;
1356 karg->numDevices++;
1357 }
1358 }
1359
1360 /* Set the BIOS and FW Version
1361 */
1362 karg->FWVersion = ioc->facts.FWVersion.Word;
1363 karg->BIOSVersion = ioc->biosVersion;
1364
1365 /* Set the Version Strings.
1366 */
1367 strncpy (karg->driverVersion, MPT_LINUX_PACKAGE_NAME, MPT_IOCTL_VERSION_LENGTH);
1368 karg->driverVersion[MPT_IOCTL_VERSION_LENGTH-1]='\0';
1369
1370 karg->busChangeEvent = 0;
1371 karg->hostId = ioc->pfacts[port].PortSCSIID;
1372 karg->rsvd[0] = karg->rsvd[1] = 0;
1373
1374 /* Copy the data from kernel memory to user memory
1375 */
1376 if (copy_to_user((char __user *)arg, karg, data_size)) {
1377 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_getiocinfo - "
1378 "Unable to write out mpt_ioctl_iocinfo struct @ %p\n",
1379 ioc->name, __FILE__, __LINE__, uarg);
1380 kfree(karg);
1381 return -EFAULT;
1382 }
1383
1384 kfree(karg);
1385 return 0;
1386}
1387
1388/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1389/*
1390 * mptctl_gettargetinfo - Query the host adapter for target information.
1391 * @arg: User space argument
1392 *
1393 * Outputs: None.
1394 * Return: 0 if successful
1395 * -EFAULT if data unavailable
1396 * -ENODEV if no such device/adapter
1397 */
1398static int
1399mptctl_gettargetinfo (unsigned long arg)
1400{
1401 struct mpt_ioctl_targetinfo __user *uarg = (void __user *) arg;
1402 struct mpt_ioctl_targetinfo karg;
1403 MPT_ADAPTER *ioc;
1404 VirtDevice *vdevice;
1405 char *pmem;
1406 int *pdata;
1407 int iocnum;
1408 int numDevices = 0;
1409 int lun;
1410 int maxWordsLeft;
1411 int numBytes;
1412 u8 port;
1413 struct scsi_device *sdev;
1414
1415 if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_targetinfo))) {
1416 printk(KERN_ERR MYNAM "%s@%d::mptctl_gettargetinfo - "
1417 "Unable to read in mpt_ioctl_targetinfo struct @ %p\n",
1418 __FILE__, __LINE__, uarg);
1419 return -EFAULT;
1420 }
1421
1422 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
1423 (ioc == NULL)) {
1424 printk(KERN_DEBUG MYNAM "%s::mptctl_gettargetinfo() @%d - ioc%d not found!\n",
1425 __FILE__, __LINE__, iocnum);
1426 return -ENODEV;
1427 }
1428
1429 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_gettargetinfo called.\n",
1430 ioc->name));
1431 /* Get the port number and set the maximum number of bytes
1432 * in the returned structure.
1433 * Ignore the port setting.
1434 */
1435 numBytes = karg.hdr.maxDataSize - sizeof(mpt_ioctl_header);
1436 maxWordsLeft = numBytes/sizeof(int);
1437 port = karg.hdr.port;
1438
1439 if (maxWordsLeft <= 0) {
1440 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_gettargetinfo() - no memory available!\n",
1441 ioc->name, __FILE__, __LINE__);
1442 return -ENOMEM;
1443 }
1444
1445 /* Fill in the data and return the structure to the calling
1446 * program
1447 */
1448
1449 /* struct mpt_ioctl_targetinfo does not contain sufficient space
1450 * for the target structures so when the IOCTL is called, there is
1451 * not sufficient stack space for the structure. Allocate memory,
1452 * populate the memory, copy back to the user, then free memory.
1453 * targetInfo format:
1454 * bits 31-24: reserved
1455 * 23-16: LUN
1456 * 15- 8: Bus Number
1457 * 7- 0: Target ID
1458 */
1459 pmem = kzalloc(numBytes, GFP_KERNEL);
1460 if (!pmem) {
1461 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_gettargetinfo() - no memory available!\n",
1462 ioc->name, __FILE__, __LINE__);
1463 return -ENOMEM;
1464 }
1465 pdata = (int *) pmem;
1466
1467 /* Get number of devices
1468 */
1469 if (ioc->sh){
1470 shost_for_each_device(sdev, ioc->sh) {
1471 if (!maxWordsLeft)
1472 continue;
1473 vdevice = sdev->hostdata;
1474 if (vdevice == NULL || vdevice->vtarget == NULL)
1475 continue;
1476 if (vdevice->vtarget->tflags &
1477 MPT_TARGET_FLAGS_RAID_COMPONENT)
1478 continue;
1479 lun = (vdevice->vtarget->raidVolume) ? 0x80 : vdevice->lun;
1480 *pdata = (((u8)lun << 16) + (vdevice->vtarget->channel << 8) +
1481 (vdevice->vtarget->id ));
1482 pdata++;
1483 numDevices++;
1484 --maxWordsLeft;
1485 }
1486 }
1487 karg.numDevices = numDevices;
1488
1489 /* Copy part of the data from kernel memory to user memory
1490 */
1491 if (copy_to_user((char __user *)arg, &karg,
1492 sizeof(struct mpt_ioctl_targetinfo))) {
1493 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_gettargetinfo - "
1494 "Unable to write out mpt_ioctl_targetinfo struct @ %p\n",
1495 ioc->name, __FILE__, __LINE__, uarg);
1496 kfree(pmem);
1497 return -EFAULT;
1498 }
1499
1500 /* Copy the remaining data from kernel memory to user memory
1501 */
1502 if (copy_to_user(uarg->targetInfo, pmem, numBytes)) {
1503 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_gettargetinfo - "
1504 "Unable to write out mpt_ioctl_targetinfo struct @ %p\n",
1505 ioc->name, __FILE__, __LINE__, pdata);
1506 kfree(pmem);
1507 return -EFAULT;
1508 }
1509
1510 kfree(pmem);
1511
1512 return 0;
1513}
1514
1515/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1516/* MPT IOCTL Test function.
1517 *
1518 * Outputs: None.
1519 * Return: 0 if successful
1520 * -EFAULT if data unavailable
1521 * -ENODEV if no such device/adapter
1522 */
1523static int
1524mptctl_readtest (unsigned long arg)
1525{
1526 struct mpt_ioctl_test __user *uarg = (void __user *) arg;
1527 struct mpt_ioctl_test karg;
1528 MPT_ADAPTER *ioc;
1529 int iocnum;
1530
1531 if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_test))) {
1532 printk(KERN_ERR MYNAM "%s@%d::mptctl_readtest - "
1533 "Unable to read in mpt_ioctl_test struct @ %p\n",
1534 __FILE__, __LINE__, uarg);
1535 return -EFAULT;
1536 }
1537
1538 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
1539 (ioc == NULL)) {
1540 printk(KERN_DEBUG MYNAM "%s::mptctl_readtest() @%d - ioc%d not found!\n",
1541 __FILE__, __LINE__, iocnum);
1542 return -ENODEV;
1543 }
1544
1545 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_readtest called.\n",
1546 ioc->name));
1547 /* Fill in the data and return the structure to the calling
1548 * program
1549 */
1550
1551#ifdef MFCNT
1552 karg.chip_type = ioc->mfcnt;
1553#else
1554 karg.chip_type = ioc->pcidev->device;
1555#endif
1556 strncpy (karg.name, ioc->name, MPT_MAX_NAME);
1557 karg.name[MPT_MAX_NAME-1]='\0';
1558 strncpy (karg.product, ioc->prod_name, MPT_PRODUCT_LENGTH);
1559 karg.product[MPT_PRODUCT_LENGTH-1]='\0';
1560
1561 /* Copy the data from kernel memory to user memory
1562 */
1563 if (copy_to_user((char __user *)arg, &karg, sizeof(struct mpt_ioctl_test))) {
1564 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_readtest - "
1565 "Unable to write out mpt_ioctl_test struct @ %p\n",
1566 ioc->name, __FILE__, __LINE__, uarg);
1567 return -EFAULT;
1568 }
1569
1570 return 0;
1571}
1572
1573/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1574/*
1575 * mptctl_eventquery - Query the host adapter for the event types
1576 * that are being logged.
1577 * @arg: User space argument
1578 *
1579 * Outputs: None.
1580 * Return: 0 if successful
1581 * -EFAULT if data unavailable
1582 * -ENODEV if no such device/adapter
1583 */
1584static int
1585mptctl_eventquery (unsigned long arg)
1586{
1587 struct mpt_ioctl_eventquery __user *uarg = (void __user *) arg;
1588 struct mpt_ioctl_eventquery karg;
1589 MPT_ADAPTER *ioc;
1590 int iocnum;
1591
1592 if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_eventquery))) {
1593 printk(KERN_ERR MYNAM "%s@%d::mptctl_eventquery - "
1594 "Unable to read in mpt_ioctl_eventquery struct @ %p\n",
1595 __FILE__, __LINE__, uarg);
1596 return -EFAULT;
1597 }
1598
1599 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
1600 (ioc == NULL)) {
1601 printk(KERN_DEBUG MYNAM "%s::mptctl_eventquery() @%d - ioc%d not found!\n",
1602 __FILE__, __LINE__, iocnum);
1603 return -ENODEV;
1604 }
1605
1606 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_eventquery called.\n",
1607 ioc->name));
1608 karg.eventEntries = MPTCTL_EVENT_LOG_SIZE;
1609 karg.eventTypes = ioc->eventTypes;
1610
1611 /* Copy the data from kernel memory to user memory
1612 */
1613 if (copy_to_user((char __user *)arg, &karg, sizeof(struct mpt_ioctl_eventquery))) {
1614 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_eventquery - "
1615 "Unable to write out mpt_ioctl_eventquery struct @ %p\n",
1616 ioc->name, __FILE__, __LINE__, uarg);
1617 return -EFAULT;
1618 }
1619 return 0;
1620}
1621
1622/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1623static int
1624mptctl_eventenable (unsigned long arg)
1625{
1626 struct mpt_ioctl_eventenable __user *uarg = (void __user *) arg;
1627 struct mpt_ioctl_eventenable karg;
1628 MPT_ADAPTER *ioc;
1629 int iocnum;
1630
1631 if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_eventenable))) {
1632 printk(KERN_ERR MYNAM "%s@%d::mptctl_eventenable - "
1633 "Unable to read in mpt_ioctl_eventenable struct @ %p\n",
1634 __FILE__, __LINE__, uarg);
1635 return -EFAULT;
1636 }
1637
1638 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
1639 (ioc == NULL)) {
1640 printk(KERN_DEBUG MYNAM "%s::mptctl_eventenable() @%d - ioc%d not found!\n",
1641 __FILE__, __LINE__, iocnum);
1642 return -ENODEV;
1643 }
1644
1645 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_eventenable called.\n",
1646 ioc->name));
1647 if (ioc->events == NULL) {
1648 /* Have not yet allocated memory - do so now.
1649 */
1650 int sz = MPTCTL_EVENT_LOG_SIZE * sizeof(MPT_IOCTL_EVENTS);
1651 ioc->events = kzalloc(sz, GFP_KERNEL);
1652 if (!ioc->events) {
1653 printk(MYIOC_s_ERR_FMT
1654 ": ERROR - Insufficient memory to add adapter!\n",
1655 ioc->name);
1656 return -ENOMEM;
1657 }
1658 ioc->alloc_total += sz;
1659
1660 ioc->eventContext = 0;
1661 }
1662
1663 /* Update the IOC event logging flag.
1664 */
1665 ioc->eventTypes = karg.eventTypes;
1666
1667 return 0;
1668}
1669
1670/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1671static int
1672mptctl_eventreport (unsigned long arg)
1673{
1674 struct mpt_ioctl_eventreport __user *uarg = (void __user *) arg;
1675 struct mpt_ioctl_eventreport karg;
1676 MPT_ADAPTER *ioc;
1677 int iocnum;
1678 int numBytes, maxEvents, max;
1679
1680 if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_eventreport))) {
1681 printk(KERN_ERR MYNAM "%s@%d::mptctl_eventreport - "
1682 "Unable to read in mpt_ioctl_eventreport struct @ %p\n",
1683 __FILE__, __LINE__, uarg);
1684 return -EFAULT;
1685 }
1686
1687 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
1688 (ioc == NULL)) {
1689 printk(KERN_DEBUG MYNAM "%s::mptctl_eventreport() @%d - ioc%d not found!\n",
1690 __FILE__, __LINE__, iocnum);
1691 return -ENODEV;
1692 }
1693 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_eventreport called.\n",
1694 ioc->name));
1695
1696 numBytes = karg.hdr.maxDataSize - sizeof(mpt_ioctl_header);
1697 maxEvents = numBytes/sizeof(MPT_IOCTL_EVENTS);
1698
1699
1700 max = MPTCTL_EVENT_LOG_SIZE < maxEvents ? MPTCTL_EVENT_LOG_SIZE : maxEvents;
1701
1702 /* If fewer than 1 event is requested, there must have
1703 * been some type of error.
1704 */
1705 if ((max < 1) || !ioc->events)
1706 return -ENODATA;
1707
1708 /* reset this flag so SIGIO can restart */
1709 ioc->aen_event_read_flag=0;
1710
1711 /* Copy the data from kernel memory to user memory
1712 */
1713 numBytes = max * sizeof(MPT_IOCTL_EVENTS);
1714 if (copy_to_user(uarg->eventData, ioc->events, numBytes)) {
1715 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_eventreport - "
1716 "Unable to write out mpt_ioctl_eventreport struct @ %p\n",
1717 ioc->name, __FILE__, __LINE__, ioc->events);
1718 return -EFAULT;
1719 }
1720
1721 return 0;
1722}
1723
1724/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1725static int
1726mptctl_replace_fw (unsigned long arg)
1727{
1728 struct mpt_ioctl_replace_fw __user *uarg = (void __user *) arg;
1729 struct mpt_ioctl_replace_fw karg;
1730 MPT_ADAPTER *ioc;
1731 int iocnum;
1732 int newFwSize;
1733
1734 if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_replace_fw))) {
1735 printk(KERN_ERR MYNAM "%s@%d::mptctl_replace_fw - "
1736 "Unable to read in mpt_ioctl_replace_fw struct @ %p\n",
1737 __FILE__, __LINE__, uarg);
1738 return -EFAULT;
1739 }
1740
1741 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
1742 (ioc == NULL)) {
1743 printk(KERN_DEBUG MYNAM "%s::mptctl_replace_fw() @%d - ioc%d not found!\n",
1744 __FILE__, __LINE__, iocnum);
1745 return -ENODEV;
1746 }
1747
1748 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_replace_fw called.\n",
1749 ioc->name));
1750 /* If caching FW, Free the old FW image
1751 */
1752 if (ioc->cached_fw == NULL)
1753 return 0;
1754
1755 mpt_free_fw_memory(ioc);
1756
1757 /* Allocate memory for the new FW image
1758 */
1759 newFwSize = karg.newImageSize;
1760
1761 if (newFwSize & 0x01)
1762 newFwSize += 1;
1763 if (newFwSize & 0x02)
1764 newFwSize += 2;
1765
1766 mpt_alloc_fw_memory(ioc, newFwSize);
1767 if (ioc->cached_fw == NULL)
1768 return -ENOMEM;
1769
1770 /* Copy the data from user memory to kernel space
1771 */
1772 if (copy_from_user(ioc->cached_fw, uarg->newImage, newFwSize)) {
1773 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_replace_fw - "
1774 "Unable to read in mpt_ioctl_replace_fw image "
1775 "@ %p\n", ioc->name, __FILE__, __LINE__, uarg);
1776 mpt_free_fw_memory(ioc);
1777 return -EFAULT;
1778 }
1779
1780 /* Update IOCFactsReply
1781 */
1782 ioc->facts.FWImageSize = newFwSize;
1783 return 0;
1784}
1785
1786/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1787/* MPT IOCTL MPTCOMMAND function.
1788 * Cast the arg into the mpt_ioctl_mpt_command structure.
1789 *
1790 * Outputs: None.
1791 * Return: 0 if successful
1792 * -EBUSY if previous command timeout and IOC reset is not complete.
1793 * -EFAULT if data unavailable
1794 * -ENODEV if no such device/adapter
1795 * -ETIME if timer expires
1796 * -ENOMEM if memory allocation error
1797 */
1798static int
1799mptctl_mpt_command (unsigned long arg)
1800{
1801 struct mpt_ioctl_command __user *uarg = (void __user *) arg;
1802 struct mpt_ioctl_command karg;
1803 MPT_ADAPTER *ioc;
1804 int iocnum;
1805 int rc;
1806
1807
1808 if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_command))) {
1809 printk(KERN_ERR MYNAM "%s@%d::mptctl_mpt_command - "
1810 "Unable to read in mpt_ioctl_command struct @ %p\n",
1811 __FILE__, __LINE__, uarg);
1812 return -EFAULT;
1813 }
1814
1815 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
1816 (ioc == NULL)) {
1817 printk(KERN_DEBUG MYNAM "%s::mptctl_mpt_command() @%d - ioc%d not found!\n",
1818 __FILE__, __LINE__, iocnum);
1819 return -ENODEV;
1820 }
1821
1822 rc = mptctl_do_mpt_command (karg, &uarg->MF);
1823
1824 return rc;
1825}
1826
1827/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1828/* Worker routine for the IOCTL MPTCOMMAND and MPTCOMMAND32 (sparc) commands.
1829 *
1830 * Outputs: None.
1831 * Return: 0 if successful
1832 * -EBUSY if previous command timeout and IOC reset is not complete.
1833 * -EFAULT if data unavailable
1834 * -ENODEV if no such device/adapter
1835 * -ETIME if timer expires
1836 * -ENOMEM if memory allocation error
1837 * -EPERM if SCSI I/O and target is untagged
1838 */
1839static int
1840mptctl_do_mpt_command (struct mpt_ioctl_command karg, void __user *mfPtr)
1841{
1842 MPT_ADAPTER *ioc;
1843 MPT_FRAME_HDR *mf = NULL;
1844 MPIHeader_t *hdr;
1845 char *psge;
1846 struct buflist bufIn; /* data In buffer */
1847 struct buflist bufOut; /* data Out buffer */
1848 dma_addr_t dma_addr_in;
1849 dma_addr_t dma_addr_out;
1850 int sgSize = 0; /* Num SG elements */
1851 int iocnum, flagsLength;
1852 int sz, rc = 0;
1853 int msgContext;
1854 u16 req_idx;
1855 ulong timeout;
1856 unsigned long timeleft;
1857 struct scsi_device *sdev;
1858 unsigned long flags;
1859 u8 function;
1860
1861 /* bufIn and bufOut are used for user to kernel space transfers
1862 */
1863 bufIn.kptr = bufOut.kptr = NULL;
1864 bufIn.len = bufOut.len = 0;
1865
1866 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
1867 (ioc == NULL)) {
1868 printk(KERN_DEBUG MYNAM "%s::mptctl_do_mpt_command() @%d - ioc%d not found!\n",
1869 __FILE__, __LINE__, iocnum);
1870 return -ENODEV;
1871 }
1872
1873 spin_lock_irqsave(&ioc->taskmgmt_lock, flags);
1874 if (ioc->ioc_reset_in_progress) {
1875 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
1876 printk(KERN_ERR MYNAM "%s@%d::mptctl_do_mpt_command - "
1877 "Busy with diagnostic reset\n", __FILE__, __LINE__);
1878 return -EBUSY;
1879 }
1880 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
1881
1882 /* Verify that the final request frame will not be too large.
1883 */
1884 sz = karg.dataSgeOffset * 4;
1885 if (karg.dataInSize > 0)
1886 sz += ioc->SGE_size;
1887 if (karg.dataOutSize > 0)
1888 sz += ioc->SGE_size;
1889
1890 if (sz > ioc->req_sz) {
1891 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
1892 "Request frame too large (%d) maximum (%d)\n",
1893 ioc->name, __FILE__, __LINE__, sz, ioc->req_sz);
1894 return -EFAULT;
1895 }
1896
1897 /* Get a free request frame and save the message context.
1898 */
1899 if ((mf = mpt_get_msg_frame(mptctl_id, ioc)) == NULL)
1900 return -EAGAIN;
1901
1902 hdr = (MPIHeader_t *) mf;
1903 msgContext = le32_to_cpu(hdr->MsgContext);
1904 req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
1905
1906 /* Copy the request frame
1907 * Reset the saved message context.
1908 * Request frame in user space
1909 */
1910 if (copy_from_user(mf, mfPtr, karg.dataSgeOffset * 4)) {
1911 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
1912 "Unable to read MF from mpt_ioctl_command struct @ %p\n",
1913 ioc->name, __FILE__, __LINE__, mfPtr);
1914 function = -1;
1915 rc = -EFAULT;
1916 goto done_free_mem;
1917 }
1918 hdr->MsgContext = cpu_to_le32(msgContext);
1919 function = hdr->Function;
1920
1921
1922 /* Verify that this request is allowed.
1923 */
1924 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "sending mpi function (0x%02X), req=%p\n",
1925 ioc->name, hdr->Function, mf));
1926
1927 switch (function) {
1928 case MPI_FUNCTION_IOC_FACTS:
1929 case MPI_FUNCTION_PORT_FACTS:
1930 karg.dataOutSize = karg.dataInSize = 0;
1931 break;
1932
1933 case MPI_FUNCTION_CONFIG:
1934 {
1935 Config_t *config_frame;
1936 config_frame = (Config_t *)mf;
1937 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "\ttype=0x%02x ext_type=0x%02x "
1938 "number=0x%02x action=0x%02x\n", ioc->name,
1939 config_frame->Header.PageType,
1940 config_frame->ExtPageType,
1941 config_frame->Header.PageNumber,
1942 config_frame->Action));
1943 break;
1944 }
1945
1946 case MPI_FUNCTION_FC_COMMON_TRANSPORT_SEND:
1947 case MPI_FUNCTION_FC_EX_LINK_SRVC_SEND:
1948 case MPI_FUNCTION_FW_UPLOAD:
1949 case MPI_FUNCTION_SCSI_ENCLOSURE_PROCESSOR:
1950 case MPI_FUNCTION_FW_DOWNLOAD:
1951 case MPI_FUNCTION_FC_PRIMITIVE_SEND:
1952 case MPI_FUNCTION_TOOLBOX:
1953 case MPI_FUNCTION_SAS_IO_UNIT_CONTROL:
1954 break;
1955
1956 case MPI_FUNCTION_SCSI_IO_REQUEST:
1957 if (ioc->sh) {
1958 SCSIIORequest_t *pScsiReq = (SCSIIORequest_t *) mf;
1959 int qtag = MPI_SCSIIO_CONTROL_UNTAGGED;
1960 int scsidir = 0;
1961 int dataSize;
1962 u32 id;
1963
1964 id = (ioc->devices_per_bus == 0) ? 256 : ioc->devices_per_bus;
1965 if (pScsiReq->TargetID > id) {
1966 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
1967 "Target ID out of bounds. \n",
1968 ioc->name, __FILE__, __LINE__);
1969 rc = -ENODEV;
1970 goto done_free_mem;
1971 }
1972
1973 if (pScsiReq->Bus >= ioc->number_of_buses) {
1974 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
1975 "Target Bus out of bounds. \n",
1976 ioc->name, __FILE__, __LINE__);
1977 rc = -ENODEV;
1978 goto done_free_mem;
1979 }
1980
1981 pScsiReq->MsgFlags &= ~MPI_SCSIIO_MSGFLGS_SENSE_WIDTH;
1982 pScsiReq->MsgFlags |= mpt_msg_flags(ioc);
1983
1984
1985 /* verify that app has not requested
1986 * more sense data than driver
1987 * can provide, if so, reset this parameter
1988 * set the sense buffer pointer low address
1989 * update the control field to specify Q type
1990 */
1991 if (karg.maxSenseBytes > MPT_SENSE_BUFFER_SIZE)
1992 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
1993 else
1994 pScsiReq->SenseBufferLength = karg.maxSenseBytes;
1995
1996 pScsiReq->SenseBufferLowAddr =
1997 cpu_to_le32(ioc->sense_buf_low_dma
1998 + (req_idx * MPT_SENSE_BUFFER_ALLOC));
1999
2000 shost_for_each_device(sdev, ioc->sh) {
2001 struct scsi_target *starget = scsi_target(sdev);
2002 VirtTarget *vtarget = starget->hostdata;
2003
2004 if (vtarget == NULL)
2005 continue;
2006
2007 if ((pScsiReq->TargetID == vtarget->id) &&
2008 (pScsiReq->Bus == vtarget->channel) &&
2009 (vtarget->tflags & MPT_TARGET_FLAGS_Q_YES))
2010 qtag = MPI_SCSIIO_CONTROL_SIMPLEQ;
2011 }
2012
2013 /* Have the IOCTL driver set the direction based
2014 * on the dataOutSize (ordering issue with Sparc).
2015 */
2016 if (karg.dataOutSize > 0) {
2017 scsidir = MPI_SCSIIO_CONTROL_WRITE;
2018 dataSize = karg.dataOutSize;
2019 } else {
2020 scsidir = MPI_SCSIIO_CONTROL_READ;
2021 dataSize = karg.dataInSize;
2022 }
2023
2024 pScsiReq->Control = cpu_to_le32(scsidir | qtag);
2025 pScsiReq->DataLength = cpu_to_le32(dataSize);
2026
2027
2028 } else {
2029 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
2030 "SCSI driver is not loaded. \n",
2031 ioc->name, __FILE__, __LINE__);
2032 rc = -EFAULT;
2033 goto done_free_mem;
2034 }
2035 break;
2036
2037 case MPI_FUNCTION_SMP_PASSTHROUGH:
2038 /* Check mf->PassthruFlags to determine if
2039 * transfer is ImmediateMode or not.
2040 * Immediate mode returns data in the ReplyFrame.
2041 * Else, we are sending request and response data
2042 * in two SGLs at the end of the mf.
2043 */
2044 break;
2045
2046 case MPI_FUNCTION_SATA_PASSTHROUGH:
2047 if (!ioc->sh) {
2048 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
2049 "SCSI driver is not loaded. \n",
2050 ioc->name, __FILE__, __LINE__);
2051 rc = -EFAULT;
2052 goto done_free_mem;
2053 }
2054 break;
2055
2056 case MPI_FUNCTION_RAID_ACTION:
2057 /* Just add a SGE
2058 */
2059 break;
2060
2061 case MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
2062 if (ioc->sh) {
2063 SCSIIORequest_t *pScsiReq = (SCSIIORequest_t *) mf;
2064 int qtag = MPI_SCSIIO_CONTROL_SIMPLEQ;
2065 int scsidir = MPI_SCSIIO_CONTROL_READ;
2066 int dataSize;
2067
2068 pScsiReq->MsgFlags &= ~MPI_SCSIIO_MSGFLGS_SENSE_WIDTH;
2069 pScsiReq->MsgFlags |= mpt_msg_flags(ioc);
2070
2071
2072 /* verify that app has not requested
2073 * more sense data than driver
2074 * can provide, if so, reset this parameter
2075 * set the sense buffer pointer low address
2076 * update the control field to specify Q type
2077 */
2078 if (karg.maxSenseBytes > MPT_SENSE_BUFFER_SIZE)
2079 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
2080 else
2081 pScsiReq->SenseBufferLength = karg.maxSenseBytes;
2082
2083 pScsiReq->SenseBufferLowAddr =
2084 cpu_to_le32(ioc->sense_buf_low_dma
2085 + (req_idx * MPT_SENSE_BUFFER_ALLOC));
2086
2087 /* All commands to physical devices are tagged
2088 */
2089
2090 /* Have the IOCTL driver set the direction based
2091 * on the dataOutSize (ordering issue with Sparc).
2092 */
2093 if (karg.dataOutSize > 0) {
2094 scsidir = MPI_SCSIIO_CONTROL_WRITE;
2095 dataSize = karg.dataOutSize;
2096 } else {
2097 scsidir = MPI_SCSIIO_CONTROL_READ;
2098 dataSize = karg.dataInSize;
2099 }
2100
2101 pScsiReq->Control = cpu_to_le32(scsidir | qtag);
2102 pScsiReq->DataLength = cpu_to_le32(dataSize);
2103
2104 } else {
2105 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
2106 "SCSI driver is not loaded. \n",
2107 ioc->name, __FILE__, __LINE__);
2108 rc = -EFAULT;
2109 goto done_free_mem;
2110 }
2111 break;
2112
2113 case MPI_FUNCTION_SCSI_TASK_MGMT:
2114 {
2115 SCSITaskMgmt_t *pScsiTm;
2116 pScsiTm = (SCSITaskMgmt_t *)mf;
2117 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2118 "\tTaskType=0x%x MsgFlags=0x%x "
2119 "TaskMsgContext=0x%x id=%d channel=%d\n",
2120 ioc->name, pScsiTm->TaskType, le32_to_cpu
2121 (pScsiTm->TaskMsgContext), pScsiTm->MsgFlags,
2122 pScsiTm->TargetID, pScsiTm->Bus));
2123 break;
2124 }
2125
2126 case MPI_FUNCTION_IOC_INIT:
2127 {
2128 IOCInit_t *pInit = (IOCInit_t *) mf;
2129 u32 high_addr, sense_high;
2130
2131 /* Verify that all entries in the IOC INIT match
2132 * existing setup (and in LE format).
2133 */
2134 if (sizeof(dma_addr_t) == sizeof(u64)) {
2135 high_addr = cpu_to_le32((u32)((u64)ioc->req_frames_dma >> 32));
2136 sense_high= cpu_to_le32((u32)((u64)ioc->sense_buf_pool_dma >> 32));
2137 } else {
2138 high_addr = 0;
2139 sense_high= 0;
2140 }
2141
2142 if ((pInit->Flags != 0) || (pInit->MaxDevices != ioc->facts.MaxDevices) ||
2143 (pInit->MaxBuses != ioc->facts.MaxBuses) ||
2144 (pInit->ReplyFrameSize != cpu_to_le16(ioc->reply_sz)) ||
2145 (pInit->HostMfaHighAddr != high_addr) ||
2146 (pInit->SenseBufferHighAddr != sense_high)) {
2147 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
2148 "IOC_INIT issued with 1 or more incorrect parameters. Rejected.\n",
2149 ioc->name, __FILE__, __LINE__);
2150 rc = -EFAULT;
2151 goto done_free_mem;
2152 }
2153 }
2154 break;
2155 default:
2156 /*
2157 * MPI_FUNCTION_PORT_ENABLE
2158 * MPI_FUNCTION_TARGET_CMD_BUFFER_POST
2159 * MPI_FUNCTION_TARGET_ASSIST
2160 * MPI_FUNCTION_TARGET_STATUS_SEND
2161 * MPI_FUNCTION_TARGET_MODE_ABORT
2162 * MPI_FUNCTION_IOC_MESSAGE_UNIT_RESET
2163 * MPI_FUNCTION_IO_UNIT_RESET
2164 * MPI_FUNCTION_HANDSHAKE
2165 * MPI_FUNCTION_REPLY_FRAME_REMOVAL
2166 * MPI_FUNCTION_EVENT_NOTIFICATION
2167 * (driver handles event notification)
2168 * MPI_FUNCTION_EVENT_ACK
2169 */
2170
2171 /* What to do with these??? CHECK ME!!!
2172 MPI_FUNCTION_FC_LINK_SRVC_BUF_POST
2173 MPI_FUNCTION_FC_LINK_SRVC_RSP
2174 MPI_FUNCTION_FC_ABORT
2175 MPI_FUNCTION_LAN_SEND
2176 MPI_FUNCTION_LAN_RECEIVE
2177 MPI_FUNCTION_LAN_RESET
2178 */
2179
2180 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
2181 "Illegal request (function 0x%x) \n",
2182 ioc->name, __FILE__, __LINE__, hdr->Function);
2183 rc = -EFAULT;
2184 goto done_free_mem;
2185 }
2186
2187 /* Add the SGL ( at most one data in SGE and one data out SGE )
2188 * In the case of two SGE's - the data out (write) will always
2189 * preceede the data in (read) SGE. psgList is used to free the
2190 * allocated memory.
2191 */
2192 psge = (char *) (((int *) mf) + karg.dataSgeOffset);
2193 flagsLength = 0;
2194
2195 if (karg.dataOutSize > 0)
2196 sgSize ++;
2197
2198 if (karg.dataInSize > 0)
2199 sgSize ++;
2200
2201 if (sgSize > 0) {
2202
2203 /* Set up the dataOut memory allocation */
2204 if (karg.dataOutSize > 0) {
2205 if (karg.dataInSize > 0) {
2206 flagsLength = ( MPI_SGE_FLAGS_SIMPLE_ELEMENT |
2207 MPI_SGE_FLAGS_END_OF_BUFFER |
2208 MPI_SGE_FLAGS_DIRECTION)
2209 << MPI_SGE_FLAGS_SHIFT;
2210 } else {
2211 flagsLength = MPT_SGE_FLAGS_SSIMPLE_WRITE;
2212 }
2213 flagsLength |= karg.dataOutSize;
2214 bufOut.len = karg.dataOutSize;
2215 bufOut.kptr = pci_alloc_consistent(
2216 ioc->pcidev, bufOut.len, &dma_addr_out);
2217
2218 if (bufOut.kptr == NULL) {
2219 rc = -ENOMEM;
2220 goto done_free_mem;
2221 } else {
2222 /* Set up this SGE.
2223 * Copy to MF and to sglbuf
2224 */
2225 ioc->add_sge(psge, flagsLength, dma_addr_out);
2226 psge += ioc->SGE_size;
2227
2228 /* Copy user data to kernel space.
2229 */
2230 if (copy_from_user(bufOut.kptr,
2231 karg.dataOutBufPtr,
2232 bufOut.len)) {
2233 printk(MYIOC_s_ERR_FMT
2234 "%s@%d::mptctl_do_mpt_command - Unable "
2235 "to read user data "
2236 "struct @ %p\n",
2237 ioc->name, __FILE__, __LINE__,karg.dataOutBufPtr);
2238 rc = -EFAULT;
2239 goto done_free_mem;
2240 }
2241 }
2242 }
2243
2244 if (karg.dataInSize > 0) {
2245 flagsLength = MPT_SGE_FLAGS_SSIMPLE_READ;
2246 flagsLength |= karg.dataInSize;
2247
2248 bufIn.len = karg.dataInSize;
2249 bufIn.kptr = pci_alloc_consistent(ioc->pcidev,
2250 bufIn.len, &dma_addr_in);
2251
2252 if (bufIn.kptr == NULL) {
2253 rc = -ENOMEM;
2254 goto done_free_mem;
2255 } else {
2256 /* Set up this SGE
2257 * Copy to MF and to sglbuf
2258 */
2259 ioc->add_sge(psge, flagsLength, dma_addr_in);
2260 }
2261 }
2262 } else {
2263 /* Add a NULL SGE
2264 */
2265 ioc->add_sge(psge, flagsLength, (dma_addr_t) -1);
2266 }
2267
2268 SET_MGMT_MSG_CONTEXT(ioc->ioctl_cmds.msg_context, hdr->MsgContext);
2269 INITIALIZE_MGMT_STATUS(ioc->ioctl_cmds.status)
2270 if (hdr->Function == MPI_FUNCTION_SCSI_TASK_MGMT) {
2271
2272 mutex_lock(&ioc->taskmgmt_cmds.mutex);
2273 if (mpt_set_taskmgmt_in_progress_flag(ioc) != 0) {
2274 mutex_unlock(&ioc->taskmgmt_cmds.mutex);
2275 goto done_free_mem;
2276 }
2277
2278 DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)mf);
2279
2280 if ((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) &&
2281 (ioc->facts.MsgVersion >= MPI_VERSION_01_05))
2282 mpt_put_msg_frame_hi_pri(mptctl_id, ioc, mf);
2283 else {
2284 rc =mpt_send_handshake_request(mptctl_id, ioc,
2285 sizeof(SCSITaskMgmt_t), (u32*)mf, CAN_SLEEP);
2286 if (rc != 0) {
2287 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
2288 "send_handshake FAILED! (ioc %p, mf %p)\n",
2289 ioc->name, ioc, mf));
2290 mpt_clear_taskmgmt_in_progress_flag(ioc);
2291 rc = -ENODATA;
2292 mutex_unlock(&ioc->taskmgmt_cmds.mutex);
2293 goto done_free_mem;
2294 }
2295 }
2296
2297 } else
2298 mpt_put_msg_frame(mptctl_id, ioc, mf);
2299
2300 /* Now wait for the command to complete */
2301 timeout = (karg.timeout > 0) ? karg.timeout : MPT_IOCTL_DEFAULT_TIMEOUT;
2302retry_wait:
2303 timeleft = wait_for_completion_timeout(&ioc->ioctl_cmds.done,
2304 HZ*timeout);
2305 if (!(ioc->ioctl_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
2306 rc = -ETIME;
2307 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "%s: TIMED OUT!\n",
2308 ioc->name, __func__));
2309 if (ioc->ioctl_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) {
2310 if (function == MPI_FUNCTION_SCSI_TASK_MGMT)
2311 mutex_unlock(&ioc->taskmgmt_cmds.mutex);
2312 goto done_free_mem;
2313 }
2314 if (!timeleft) {
2315 printk(MYIOC_s_WARN_FMT
2316 "mpt cmd timeout, doorbell=0x%08x"
2317 " function=0x%x\n",
2318 ioc->name, mpt_GetIocState(ioc, 0), function);
2319 if (function == MPI_FUNCTION_SCSI_TASK_MGMT)
2320 mutex_unlock(&ioc->taskmgmt_cmds.mutex);
2321 mptctl_timeout_expired(ioc, mf);
2322 mf = NULL;
2323 } else
2324 goto retry_wait;
2325 goto done_free_mem;
2326 }
2327
2328 if (function == MPI_FUNCTION_SCSI_TASK_MGMT)
2329 mutex_unlock(&ioc->taskmgmt_cmds.mutex);
2330
2331
2332 mf = NULL;
2333
2334 /* If a valid reply frame, copy to the user.
2335 * Offset 2: reply length in U32's
2336 */
2337 if (ioc->ioctl_cmds.status & MPT_MGMT_STATUS_RF_VALID) {
2338 if (karg.maxReplyBytes < ioc->reply_sz) {
2339 sz = min(karg.maxReplyBytes,
2340 4*ioc->ioctl_cmds.reply[2]);
2341 } else {
2342 sz = min(ioc->reply_sz, 4*ioc->ioctl_cmds.reply[2]);
2343 }
2344 if (sz > 0) {
2345 if (copy_to_user(karg.replyFrameBufPtr,
2346 ioc->ioctl_cmds.reply, sz)){
2347 printk(MYIOC_s_ERR_FMT
2348 "%s@%d::mptctl_do_mpt_command - "
2349 "Unable to write out reply frame %p\n",
2350 ioc->name, __FILE__, __LINE__, karg.replyFrameBufPtr);
2351 rc = -ENODATA;
2352 goto done_free_mem;
2353 }
2354 }
2355 }
2356
2357 /* If valid sense data, copy to user.
2358 */
2359 if (ioc->ioctl_cmds.status & MPT_MGMT_STATUS_SENSE_VALID) {
2360 sz = min(karg.maxSenseBytes, MPT_SENSE_BUFFER_SIZE);
2361 if (sz > 0) {
2362 if (copy_to_user(karg.senseDataPtr,
2363 ioc->ioctl_cmds.sense, sz)) {
2364 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
2365 "Unable to write sense data to user %p\n",
2366 ioc->name, __FILE__, __LINE__,
2367 karg.senseDataPtr);
2368 rc = -ENODATA;
2369 goto done_free_mem;
2370 }
2371 }
2372 }
2373
2374 /* If the overall status is _GOOD and data in, copy data
2375 * to user.
2376 */
2377 if ((ioc->ioctl_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD) &&
2378 (karg.dataInSize > 0) && (bufIn.kptr)) {
2379
2380 if (copy_to_user(karg.dataInBufPtr,
2381 bufIn.kptr, karg.dataInSize)) {
2382 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
2383 "Unable to write data to user %p\n",
2384 ioc->name, __FILE__, __LINE__,
2385 karg.dataInBufPtr);
2386 rc = -ENODATA;
2387 }
2388 }
2389
2390done_free_mem:
2391
2392 CLEAR_MGMT_STATUS(ioc->ioctl_cmds.status)
2393 SET_MGMT_MSG_CONTEXT(ioc->ioctl_cmds.msg_context, 0);
2394
2395 /* Free the allocated memory.
2396 */
2397 if (bufOut.kptr != NULL) {
2398 pci_free_consistent(ioc->pcidev,
2399 bufOut.len, (void *) bufOut.kptr, dma_addr_out);
2400 }
2401
2402 if (bufIn.kptr != NULL) {
2403 pci_free_consistent(ioc->pcidev,
2404 bufIn.len, (void *) bufIn.kptr, dma_addr_in);
2405 }
2406
2407 /* mf is null if command issued successfully
2408 * otherwise, failure occurred after mf acquired.
2409 */
2410 if (mf)
2411 mpt_free_msg_frame(ioc, mf);
2412
2413 return rc;
2414}
2415
2416/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2417/* Prototype Routine for the HOST INFO command.
2418 *
2419 * Outputs: None.
2420 * Return: 0 if successful
2421 * -EFAULT if data unavailable
2422 * -EBUSY if previous command timeout and IOC reset is not complete.
2423 * -ENODEV if no such device/adapter
2424 * -ETIME if timer expires
2425 * -ENOMEM if memory allocation error
2426 */
2427static int
2428mptctl_hp_hostinfo(unsigned long arg, unsigned int data_size)
2429{
2430 hp_host_info_t __user *uarg = (void __user *) arg;
2431 MPT_ADAPTER *ioc;
2432 struct pci_dev *pdev;
2433 char *pbuf=NULL;
2434 dma_addr_t buf_dma;
2435 hp_host_info_t karg;
2436 CONFIGPARMS cfg;
2437 ConfigPageHeader_t hdr;
2438 int iocnum;
2439 int rc, cim_rev;
2440 ToolboxIstwiReadWriteRequest_t *IstwiRWRequest;
2441 MPT_FRAME_HDR *mf = NULL;
2442 MPIHeader_t *mpi_hdr;
2443 unsigned long timeleft;
2444 int retval;
2445
2446 /* Reset long to int. Should affect IA64 and SPARC only
2447 */
2448 if (data_size == sizeof(hp_host_info_t))
2449 cim_rev = 1;
2450 else if (data_size == sizeof(hp_host_info_rev0_t))
2451 cim_rev = 0; /* obsolete */
2452 else
2453 return -EFAULT;
2454
2455 if (copy_from_user(&karg, uarg, sizeof(hp_host_info_t))) {
2456 printk(KERN_ERR MYNAM "%s@%d::mptctl_hp_host_info - "
2457 "Unable to read in hp_host_info struct @ %p\n",
2458 __FILE__, __LINE__, uarg);
2459 return -EFAULT;
2460 }
2461
2462 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
2463 (ioc == NULL)) {
2464 printk(KERN_DEBUG MYNAM "%s::mptctl_hp_hostinfo() @%d - ioc%d not found!\n",
2465 __FILE__, __LINE__, iocnum);
2466 return -ENODEV;
2467 }
2468 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT ": mptctl_hp_hostinfo called.\n",
2469 ioc->name));
2470
2471 /* Fill in the data and return the structure to the calling
2472 * program
2473 */
2474 pdev = (struct pci_dev *) ioc->pcidev;
2475
2476 karg.vendor = pdev->vendor;
2477 karg.device = pdev->device;
2478 karg.subsystem_id = pdev->subsystem_device;
2479 karg.subsystem_vendor = pdev->subsystem_vendor;
2480 karg.devfn = pdev->devfn;
2481 karg.bus = pdev->bus->number;
2482
2483 /* Save the SCSI host no. if
2484 * SCSI driver loaded
2485 */
2486 if (ioc->sh != NULL)
2487 karg.host_no = ioc->sh->host_no;
2488 else
2489 karg.host_no = -1;
2490
2491 /* Reformat the fw_version into a string
2492 */
2493 karg.fw_version[0] = ioc->facts.FWVersion.Struct.Major >= 10 ?
2494 ((ioc->facts.FWVersion.Struct.Major / 10) + '0') : '0';
2495 karg.fw_version[1] = (ioc->facts.FWVersion.Struct.Major % 10 ) + '0';
2496 karg.fw_version[2] = '.';
2497 karg.fw_version[3] = ioc->facts.FWVersion.Struct.Minor >= 10 ?
2498 ((ioc->facts.FWVersion.Struct.Minor / 10) + '0') : '0';
2499 karg.fw_version[4] = (ioc->facts.FWVersion.Struct.Minor % 10 ) + '0';
2500 karg.fw_version[5] = '.';
2501 karg.fw_version[6] = ioc->facts.FWVersion.Struct.Unit >= 10 ?
2502 ((ioc->facts.FWVersion.Struct.Unit / 10) + '0') : '0';
2503 karg.fw_version[7] = (ioc->facts.FWVersion.Struct.Unit % 10 ) + '0';
2504 karg.fw_version[8] = '.';
2505 karg.fw_version[9] = ioc->facts.FWVersion.Struct.Dev >= 10 ?
2506 ((ioc->facts.FWVersion.Struct.Dev / 10) + '0') : '0';
2507 karg.fw_version[10] = (ioc->facts.FWVersion.Struct.Dev % 10 ) + '0';
2508 karg.fw_version[11] = '\0';
2509
2510 /* Issue a config request to get the device serial number
2511 */
2512 hdr.PageVersion = 0;
2513 hdr.PageLength = 0;
2514 hdr.PageNumber = 0;
2515 hdr.PageType = MPI_CONFIG_PAGETYPE_MANUFACTURING;
2516 cfg.cfghdr.hdr = &hdr;
2517 cfg.physAddr = -1;
2518 cfg.pageAddr = 0;
2519 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
2520 cfg.dir = 0; /* read */
2521 cfg.timeout = 10;
2522
2523 strncpy(karg.serial_number, " ", 24);
2524 if (mpt_config(ioc, &cfg) == 0) {
2525 if (cfg.cfghdr.hdr->PageLength > 0) {
2526 /* Issue the second config page request */
2527 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
2528
2529 pbuf = pci_alloc_consistent(ioc->pcidev, hdr.PageLength * 4, &buf_dma);
2530 if (pbuf) {
2531 cfg.physAddr = buf_dma;
2532 if (mpt_config(ioc, &cfg) == 0) {
2533 ManufacturingPage0_t *pdata = (ManufacturingPage0_t *) pbuf;
2534 if (strlen(pdata->BoardTracerNumber) > 1) {
2535 strncpy(karg.serial_number, pdata->BoardTracerNumber, 24);
2536 karg.serial_number[24-1]='\0';
2537 }
2538 }
2539 pci_free_consistent(ioc->pcidev, hdr.PageLength * 4, pbuf, buf_dma);
2540 pbuf = NULL;
2541 }
2542 }
2543 }
2544 rc = mpt_GetIocState(ioc, 1);
2545 switch (rc) {
2546 case MPI_IOC_STATE_OPERATIONAL:
2547 karg.ioc_status = HP_STATUS_OK;
2548 break;
2549
2550 case MPI_IOC_STATE_FAULT:
2551 karg.ioc_status = HP_STATUS_FAILED;
2552 break;
2553
2554 case MPI_IOC_STATE_RESET:
2555 case MPI_IOC_STATE_READY:
2556 default:
2557 karg.ioc_status = HP_STATUS_OTHER;
2558 break;
2559 }
2560
2561 karg.base_io_addr = pci_resource_start(pdev, 0);
2562
2563 if ((ioc->bus_type == SAS) || (ioc->bus_type == FC))
2564 karg.bus_phys_width = HP_BUS_WIDTH_UNK;
2565 else
2566 karg.bus_phys_width = HP_BUS_WIDTH_16;
2567
2568 karg.hard_resets = 0;
2569 karg.soft_resets = 0;
2570 karg.timeouts = 0;
2571 if (ioc->sh != NULL) {
2572 MPT_SCSI_HOST *hd = shost_priv(ioc->sh);
2573
2574 if (hd && (cim_rev == 1)) {
2575 karg.hard_resets = ioc->hard_resets;
2576 karg.soft_resets = ioc->soft_resets;
2577 karg.timeouts = ioc->timeouts;
2578 }
2579 }
2580
2581 /*
2582 * Gather ISTWI(Industry Standard Two Wire Interface) Data
2583 */
2584 if ((mf = mpt_get_msg_frame(mptctl_id, ioc)) == NULL) {
2585 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT
2586 "%s, no msg frames!!\n", ioc->name, __func__));
2587 goto out;
2588 }
2589
2590 IstwiRWRequest = (ToolboxIstwiReadWriteRequest_t *)mf;
2591 mpi_hdr = (MPIHeader_t *) mf;
2592 memset(IstwiRWRequest,0,sizeof(ToolboxIstwiReadWriteRequest_t));
2593 IstwiRWRequest->Function = MPI_FUNCTION_TOOLBOX;
2594 IstwiRWRequest->Tool = MPI_TOOLBOX_ISTWI_READ_WRITE_TOOL;
2595 IstwiRWRequest->MsgContext = mpi_hdr->MsgContext;
2596 IstwiRWRequest->Flags = MPI_TB_ISTWI_FLAGS_READ;
2597 IstwiRWRequest->NumAddressBytes = 0x01;
2598 IstwiRWRequest->DataLength = cpu_to_le16(0x04);
2599 if (pdev->devfn & 1)
2600 IstwiRWRequest->DeviceAddr = 0xB2;
2601 else
2602 IstwiRWRequest->DeviceAddr = 0xB0;
2603
2604 pbuf = pci_alloc_consistent(ioc->pcidev, 4, &buf_dma);
2605 if (!pbuf)
2606 goto out;
2607 ioc->add_sge((char *)&IstwiRWRequest->SGL,
2608 (MPT_SGE_FLAGS_SSIMPLE_READ|4), buf_dma);
2609
2610 retval = 0;
2611 SET_MGMT_MSG_CONTEXT(ioc->ioctl_cmds.msg_context,
2612 IstwiRWRequest->MsgContext);
2613 INITIALIZE_MGMT_STATUS(ioc->ioctl_cmds.status)
2614 mpt_put_msg_frame(mptctl_id, ioc, mf);
2615
2616retry_wait:
2617 timeleft = wait_for_completion_timeout(&ioc->ioctl_cmds.done,
2618 HZ*MPT_IOCTL_DEFAULT_TIMEOUT);
2619 if (!(ioc->ioctl_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
2620 retval = -ETIME;
2621 printk(MYIOC_s_WARN_FMT "%s: failed\n", ioc->name, __func__);
2622 if (ioc->ioctl_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) {
2623 mpt_free_msg_frame(ioc, mf);
2624 goto out;
2625 }
2626 if (!timeleft) {
2627 printk(MYIOC_s_WARN_FMT
2628 "HOST INFO command timeout, doorbell=0x%08x\n",
2629 ioc->name, mpt_GetIocState(ioc, 0));
2630 mptctl_timeout_expired(ioc, mf);
2631 } else
2632 goto retry_wait;
2633 goto out;
2634 }
2635
2636 /*
2637 *ISTWI Data Definition
2638 * pbuf[0] = FW_VERSION = 0x4
2639 * pbuf[1] = Bay Count = 6 or 4 or 2, depending on
2640 * the config, you should be seeing one out of these three values
2641 * pbuf[2] = Drive Installed Map = bit pattern depend on which
2642 * bays have drives in them
2643 * pbuf[3] = Checksum (0x100 = (byte0 + byte2 + byte3)
2644 */
2645 if (ioc->ioctl_cmds.status & MPT_MGMT_STATUS_RF_VALID)
2646 karg.rsvd = *(u32 *)pbuf;
2647
2648 out:
2649 CLEAR_MGMT_STATUS(ioc->ioctl_cmds.status)
2650 SET_MGMT_MSG_CONTEXT(ioc->ioctl_cmds.msg_context, 0);
2651
2652 if (pbuf)
2653 pci_free_consistent(ioc->pcidev, 4, pbuf, buf_dma);
2654
2655 /* Copy the data from kernel memory to user memory
2656 */
2657 if (copy_to_user((char __user *)arg, &karg, sizeof(hp_host_info_t))) {
2658 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_hpgethostinfo - "
2659 "Unable to write out hp_host_info @ %p\n",
2660 ioc->name, __FILE__, __LINE__, uarg);
2661 return -EFAULT;
2662 }
2663
2664 return 0;
2665
2666}
2667
2668/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2669/* Prototype Routine for the TARGET INFO command.
2670 *
2671 * Outputs: None.
2672 * Return: 0 if successful
2673 * -EFAULT if data unavailable
2674 * -EBUSY if previous command timeout and IOC reset is not complete.
2675 * -ENODEV if no such device/adapter
2676 * -ETIME if timer expires
2677 * -ENOMEM if memory allocation error
2678 */
2679static int
2680mptctl_hp_targetinfo(unsigned long arg)
2681{
2682 hp_target_info_t __user *uarg = (void __user *) arg;
2683 SCSIDevicePage0_t *pg0_alloc;
2684 SCSIDevicePage3_t *pg3_alloc;
2685 MPT_ADAPTER *ioc;
2686 MPT_SCSI_HOST *hd = NULL;
2687 hp_target_info_t karg;
2688 int iocnum;
2689 int data_sz;
2690 dma_addr_t page_dma;
2691 CONFIGPARMS cfg;
2692 ConfigPageHeader_t hdr;
2693 int tmp, np, rc = 0;
2694
2695 if (copy_from_user(&karg, uarg, sizeof(hp_target_info_t))) {
2696 printk(KERN_ERR MYNAM "%s@%d::mptctl_hp_targetinfo - "
2697 "Unable to read in hp_host_targetinfo struct @ %p\n",
2698 __FILE__, __LINE__, uarg);
2699 return -EFAULT;
2700 }
2701
2702 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
2703 (ioc == NULL)) {
2704 printk(KERN_DEBUG MYNAM "%s::mptctl_hp_targetinfo() @%d - ioc%d not found!\n",
2705 __FILE__, __LINE__, iocnum);
2706 return -ENODEV;
2707 }
2708 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_hp_targetinfo called.\n",
2709 ioc->name));
2710
2711 /* There is nothing to do for FCP parts.
2712 */
2713 if ((ioc->bus_type == SAS) || (ioc->bus_type == FC))
2714 return 0;
2715
2716 if ((ioc->spi_data.sdp0length == 0) || (ioc->sh == NULL))
2717 return 0;
2718
2719 if (ioc->sh->host_no != karg.hdr.host)
2720 return -ENODEV;
2721
2722 /* Get the data transfer speeds
2723 */
2724 data_sz = ioc->spi_data.sdp0length * 4;
2725 pg0_alloc = (SCSIDevicePage0_t *) pci_alloc_consistent(ioc->pcidev, data_sz, &page_dma);
2726 if (pg0_alloc) {
2727 hdr.PageVersion = ioc->spi_data.sdp0version;
2728 hdr.PageLength = data_sz;
2729 hdr.PageNumber = 0;
2730 hdr.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE;
2731
2732 cfg.cfghdr.hdr = &hdr;
2733 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
2734 cfg.dir = 0;
2735 cfg.timeout = 0;
2736 cfg.physAddr = page_dma;
2737
2738 cfg.pageAddr = (karg.hdr.channel << 8) | karg.hdr.id;
2739
2740 if ((rc = mpt_config(ioc, &cfg)) == 0) {
2741 np = le32_to_cpu(pg0_alloc->NegotiatedParameters);
2742 karg.negotiated_width = np & MPI_SCSIDEVPAGE0_NP_WIDE ?
2743 HP_BUS_WIDTH_16 : HP_BUS_WIDTH_8;
2744
2745 if (np & MPI_SCSIDEVPAGE0_NP_NEG_SYNC_OFFSET_MASK) {
2746 tmp = (np & MPI_SCSIDEVPAGE0_NP_NEG_SYNC_PERIOD_MASK) >> 8;
2747 if (tmp < 0x09)
2748 karg.negotiated_speed = HP_DEV_SPEED_ULTRA320;
2749 else if (tmp <= 0x09)
2750 karg.negotiated_speed = HP_DEV_SPEED_ULTRA160;
2751 else if (tmp <= 0x0A)
2752 karg.negotiated_speed = HP_DEV_SPEED_ULTRA2;
2753 else if (tmp <= 0x0C)
2754 karg.negotiated_speed = HP_DEV_SPEED_ULTRA;
2755 else if (tmp <= 0x25)
2756 karg.negotiated_speed = HP_DEV_SPEED_FAST;
2757 else
2758 karg.negotiated_speed = HP_DEV_SPEED_ASYNC;
2759 } else
2760 karg.negotiated_speed = HP_DEV_SPEED_ASYNC;
2761 }
2762
2763 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) pg0_alloc, page_dma);
2764 }
2765
2766 /* Set defaults
2767 */
2768 karg.message_rejects = -1;
2769 karg.phase_errors = -1;
2770 karg.parity_errors = -1;
2771 karg.select_timeouts = -1;
2772
2773 /* Get the target error parameters
2774 */
2775 hdr.PageVersion = 0;
2776 hdr.PageLength = 0;
2777 hdr.PageNumber = 3;
2778 hdr.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE;
2779
2780 cfg.cfghdr.hdr = &hdr;
2781 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
2782 cfg.dir = 0;
2783 cfg.timeout = 0;
2784 cfg.physAddr = -1;
2785 if ((mpt_config(ioc, &cfg) == 0) && (cfg.cfghdr.hdr->PageLength > 0)) {
2786 /* Issue the second config page request */
2787 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
2788 data_sz = (int) cfg.cfghdr.hdr->PageLength * 4;
2789 pg3_alloc = (SCSIDevicePage3_t *) pci_alloc_consistent(
2790 ioc->pcidev, data_sz, &page_dma);
2791 if (pg3_alloc) {
2792 cfg.physAddr = page_dma;
2793 cfg.pageAddr = (karg.hdr.channel << 8) | karg.hdr.id;
2794 if ((rc = mpt_config(ioc, &cfg)) == 0) {
2795 karg.message_rejects = (u32) le16_to_cpu(pg3_alloc->MsgRejectCount);
2796 karg.phase_errors = (u32) le16_to_cpu(pg3_alloc->PhaseErrorCount);
2797 karg.parity_errors = (u32) le16_to_cpu(pg3_alloc->ParityErrorCount);
2798 }
2799 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) pg3_alloc, page_dma);
2800 }
2801 }
2802 hd = shost_priv(ioc->sh);
2803 if (hd != NULL)
2804 karg.select_timeouts = hd->sel_timeout[karg.hdr.id];
2805
2806 /* Copy the data from kernel memory to user memory
2807 */
2808 if (copy_to_user((char __user *)arg, &karg, sizeof(hp_target_info_t))) {
2809 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_hp_target_info - "
2810 "Unable to write out mpt_ioctl_targetinfo struct @ %p\n",
2811 ioc->name, __FILE__, __LINE__, uarg);
2812 return -EFAULT;
2813 }
2814
2815 return 0;
2816}
2817
2818/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2819
2820static const struct file_operations mptctl_fops = {
2821 .owner = THIS_MODULE,
2822 .llseek = no_llseek,
2823 .fasync = mptctl_fasync,
2824 .unlocked_ioctl = mptctl_ioctl,
2825 .release = mptctl_release,
2826#ifdef CONFIG_COMPAT
2827 .compat_ioctl = compat_mpctl_ioctl,
2828#endif
2829};
2830
2831static struct miscdevice mptctl_miscdev = {
2832 MPT_MINOR,
2833 MYNAM,
2834 &mptctl_fops
2835};
2836
2837/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2838
2839#ifdef CONFIG_COMPAT
2840
2841static int
2842compat_mptfwxfer_ioctl(struct file *filp, unsigned int cmd,
2843 unsigned long arg)
2844{
2845 struct mpt_fw_xfer32 kfw32;
2846 struct mpt_fw_xfer kfw;
2847 MPT_ADAPTER *iocp = NULL;
2848 int iocnum, iocnumX;
2849 int nonblock = (filp->f_flags & O_NONBLOCK);
2850 int ret;
2851
2852
2853 if (copy_from_user(&kfw32, (char __user *)arg, sizeof(kfw32)))
2854 return -EFAULT;
2855
2856 /* Verify intended MPT adapter */
2857 iocnumX = kfw32.iocnum & 0xFF;
2858 if (((iocnum = mpt_verify_adapter(iocnumX, &iocp)) < 0) ||
2859 (iocp == NULL)) {
2860 printk(KERN_DEBUG MYNAM "::compat_mptfwxfer_ioctl @%d - ioc%d not found!\n",
2861 __LINE__, iocnumX);
2862 return -ENODEV;
2863 }
2864
2865 if ((ret = mptctl_syscall_down(iocp, nonblock)) != 0)
2866 return ret;
2867
2868 dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT "compat_mptfwxfer_ioctl() called\n",
2869 iocp->name));
2870 kfw.iocnum = iocnum;
2871 kfw.fwlen = kfw32.fwlen;
2872 kfw.bufp = compat_ptr(kfw32.bufp);
2873
2874 ret = mptctl_do_fw_download(kfw.iocnum, kfw.bufp, kfw.fwlen);
2875
2876 mutex_unlock(&iocp->ioctl_cmds.mutex);
2877
2878 return ret;
2879}
2880
2881static int
2882compat_mpt_command(struct file *filp, unsigned int cmd,
2883 unsigned long arg)
2884{
2885 struct mpt_ioctl_command32 karg32;
2886 struct mpt_ioctl_command32 __user *uarg = (struct mpt_ioctl_command32 __user *) arg;
2887 struct mpt_ioctl_command karg;
2888 MPT_ADAPTER *iocp = NULL;
2889 int iocnum, iocnumX;
2890 int nonblock = (filp->f_flags & O_NONBLOCK);
2891 int ret;
2892
2893 if (copy_from_user(&karg32, (char __user *)arg, sizeof(karg32)))
2894 return -EFAULT;
2895
2896 /* Verify intended MPT adapter */
2897 iocnumX = karg32.hdr.iocnum & 0xFF;
2898 if (((iocnum = mpt_verify_adapter(iocnumX, &iocp)) < 0) ||
2899 (iocp == NULL)) {
2900 printk(KERN_DEBUG MYNAM "::compat_mpt_command @%d - ioc%d not found!\n",
2901 __LINE__, iocnumX);
2902 return -ENODEV;
2903 }
2904
2905 if ((ret = mptctl_syscall_down(iocp, nonblock)) != 0)
2906 return ret;
2907
2908 dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT "compat_mpt_command() called\n",
2909 iocp->name));
2910 /* Copy data to karg */
2911 karg.hdr.iocnum = karg32.hdr.iocnum;
2912 karg.hdr.port = karg32.hdr.port;
2913 karg.timeout = karg32.timeout;
2914 karg.maxReplyBytes = karg32.maxReplyBytes;
2915
2916 karg.dataInSize = karg32.dataInSize;
2917 karg.dataOutSize = karg32.dataOutSize;
2918 karg.maxSenseBytes = karg32.maxSenseBytes;
2919 karg.dataSgeOffset = karg32.dataSgeOffset;
2920
2921 karg.replyFrameBufPtr = (char __user *)(unsigned long)karg32.replyFrameBufPtr;
2922 karg.dataInBufPtr = (char __user *)(unsigned long)karg32.dataInBufPtr;
2923 karg.dataOutBufPtr = (char __user *)(unsigned long)karg32.dataOutBufPtr;
2924 karg.senseDataPtr = (char __user *)(unsigned long)karg32.senseDataPtr;
2925
2926 /* Pass new structure to do_mpt_command
2927 */
2928 ret = mptctl_do_mpt_command (karg, &uarg->MF);
2929
2930 mutex_unlock(&iocp->ioctl_cmds.mutex);
2931
2932 return ret;
2933}
2934
2935static long compat_mpctl_ioctl(struct file *f, unsigned int cmd, unsigned long arg)
2936{
2937 long ret;
2938 mutex_lock(&mpctl_mutex);
2939 switch (cmd) {
2940 case MPTIOCINFO:
2941 case MPTIOCINFO1:
2942 case MPTIOCINFO2:
2943 case MPTTARGETINFO:
2944 case MPTEVENTQUERY:
2945 case MPTEVENTENABLE:
2946 case MPTEVENTREPORT:
2947 case MPTHARDRESET:
2948 case HP_GETHOSTINFO:
2949 case HP_GETTARGETINFO:
2950 case MPTTEST:
2951 ret = __mptctl_ioctl(f, cmd, arg);
2952 break;
2953 case MPTCOMMAND32:
2954 ret = compat_mpt_command(f, cmd, arg);
2955 break;
2956 case MPTFWDOWNLOAD32:
2957 ret = compat_mptfwxfer_ioctl(f, cmd, arg);
2958 break;
2959 default:
2960 ret = -ENOIOCTLCMD;
2961 break;
2962 }
2963 mutex_unlock(&mpctl_mutex);
2964 return ret;
2965}
2966
2967#endif
2968
2969
2970/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2971/*
2972 * mptctl_probe - Installs ioctl devices per bus.
2973 * @pdev: Pointer to pci_dev structure
2974 *
2975 * Returns 0 for success, non-zero for failure.
2976 *
2977 */
2978
2979static int
2980mptctl_probe(struct pci_dev *pdev, const struct pci_device_id *id)
2981{
2982 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
2983
2984 mutex_init(&ioc->ioctl_cmds.mutex);
2985 init_completion(&ioc->ioctl_cmds.done);
2986 return 0;
2987}
2988
2989/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2990/*
2991 * mptctl_remove - Removed ioctl devices
2992 * @pdev: Pointer to pci_dev structure
2993 *
2994 *
2995 */
2996static void
2997mptctl_remove(struct pci_dev *pdev)
2998{
2999}
3000
3001static struct mpt_pci_driver mptctl_driver = {
3002 .probe = mptctl_probe,
3003 .remove = mptctl_remove,
3004};
3005
3006/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
3007static int __init mptctl_init(void)
3008{
3009 int err;
3010 int where = 1;
3011
3012 show_mptmod_ver(my_NAME, my_VERSION);
3013
3014 mpt_device_driver_register(&mptctl_driver, MPTCTL_DRIVER);
3015
3016 /* Register this device */
3017 err = misc_register(&mptctl_miscdev);
3018 if (err < 0) {
3019 printk(KERN_ERR MYNAM ": Can't register misc device [minor=%d].\n", MPT_MINOR);
3020 goto out_fail;
3021 }
3022 printk(KERN_INFO MYNAM ": Registered with Fusion MPT base driver\n");
3023 printk(KERN_INFO MYNAM ": /dev/%s @ (major,minor=%d,%d)\n",
3024 mptctl_miscdev.name, MISC_MAJOR, mptctl_miscdev.minor);
3025
3026 /*
3027 * Install our handler
3028 */
3029 ++where;
3030 mptctl_id = mpt_register(mptctl_reply, MPTCTL_DRIVER,
3031 "mptctl_reply");
3032 if (!mptctl_id || mptctl_id >= MPT_MAX_PROTOCOL_DRIVERS) {
3033 printk(KERN_ERR MYNAM ": ERROR: Failed to register with Fusion MPT base driver\n");
3034 misc_deregister(&mptctl_miscdev);
3035 err = -EBUSY;
3036 goto out_fail;
3037 }
3038
3039 mptctl_taskmgmt_id = mpt_register(mptctl_taskmgmt_reply, MPTCTL_DRIVER,
3040 "mptctl_taskmgmt_reply");
3041 if (!mptctl_taskmgmt_id || mptctl_taskmgmt_id >= MPT_MAX_PROTOCOL_DRIVERS) {
3042 printk(KERN_ERR MYNAM ": ERROR: Failed to register with Fusion MPT base driver\n");
3043 mpt_deregister(mptctl_id);
3044 misc_deregister(&mptctl_miscdev);
3045 err = -EBUSY;
3046 goto out_fail;
3047 }
3048
3049 mpt_reset_register(mptctl_id, mptctl_ioc_reset);
3050 mpt_event_register(mptctl_id, mptctl_event_process);
3051
3052 return 0;
3053
3054out_fail:
3055
3056 mpt_device_driver_deregister(MPTCTL_DRIVER);
3057
3058 return err;
3059}
3060
3061/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
3062static void mptctl_exit(void)
3063{
3064 misc_deregister(&mptctl_miscdev);
3065 printk(KERN_INFO MYNAM ": Deregistered /dev/%s @ (major,minor=%d,%d)\n",
3066 mptctl_miscdev.name, MISC_MAJOR, mptctl_miscdev.minor);
3067
3068 /* De-register event handler from base module */
3069 mpt_event_deregister(mptctl_id);
3070
3071 /* De-register reset handler from base module */
3072 mpt_reset_deregister(mptctl_id);
3073
3074 /* De-register callback handler from base module */
3075 mpt_deregister(mptctl_taskmgmt_id);
3076 mpt_deregister(mptctl_id);
3077
3078 mpt_device_driver_deregister(MPTCTL_DRIVER);
3079
3080}
3081
3082/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
3083
3084module_init(mptctl_init);
3085module_exit(mptctl_exit);
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
79MODULE_AUTHOR(MODULEAUTHOR);
80MODULE_DESCRIPTION(my_NAME);
81MODULE_LICENSE("GPL");
82MODULE_VERSION(my_VERSION);
83
84/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
85
86static DEFINE_MUTEX(mpctl_mutex);
87static u8 mptctl_id = MPT_MAX_PROTOCOL_DRIVERS;
88static u8 mptctl_taskmgmt_id = MPT_MAX_PROTOCOL_DRIVERS;
89
90static DECLARE_WAIT_QUEUE_HEAD ( mptctl_wait );
91
92/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
93
94struct 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 */
103static int mptctl_fw_download(MPT_ADAPTER *iocp, unsigned long arg);
104static int mptctl_getiocinfo(MPT_ADAPTER *iocp, unsigned long arg, unsigned int cmd);
105static int mptctl_gettargetinfo(MPT_ADAPTER *iocp, unsigned long arg);
106static int mptctl_readtest(MPT_ADAPTER *iocp, unsigned long arg);
107static int mptctl_mpt_command(MPT_ADAPTER *iocp, unsigned long arg);
108static int mptctl_eventquery(MPT_ADAPTER *iocp, unsigned long arg);
109static int mptctl_eventenable(MPT_ADAPTER *iocp, unsigned long arg);
110static int mptctl_eventreport(MPT_ADAPTER *iocp, unsigned long arg);
111static int mptctl_replace_fw(MPT_ADAPTER *iocp, unsigned long arg);
112
113static int mptctl_do_reset(MPT_ADAPTER *iocp, unsigned long arg);
114static int mptctl_hp_hostinfo(MPT_ADAPTER *iocp, unsigned long arg, unsigned int cmd);
115static int mptctl_hp_targetinfo(MPT_ADAPTER *iocp, unsigned long arg);
116
117static int mptctl_probe(struct pci_dev *, const struct pci_device_id *);
118static void mptctl_remove(struct pci_dev *);
119
120#ifdef CONFIG_COMPAT
121static long compat_mpctl_ioctl(struct file *f, unsigned cmd, unsigned long arg);
122#endif
123/*
124 * Private function calls.
125 */
126static int mptctl_do_mpt_command(MPT_ADAPTER *iocp, struct mpt_ioctl_command karg, void __user *mfPtr);
127static int mptctl_do_fw_download(MPT_ADAPTER *iocp, char __user *ufwbuf, size_t fwlen);
128static 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);
130static 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 */
136static int mptctl_ioc_reset(MPT_ADAPTER *ioc, int reset_phase);
137
138/*
139 * Event Handler function
140 */
141static int mptctl_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply);
142static 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 */
178static inline int
179mptctl_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 */
200static int
201mptctl_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
285static int
286mptctl_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
315static int
316mptctl_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 */
462static void
463mptctl_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 */
523static int
524mptctl_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 */
552static int
553mptctl_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
599static int
600mptctl_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 */
620static 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(iocp, arg, _IOC_SIZE(cmd));
660 } else if (cmd == MPTTARGETINFO) {
661 return mptctl_gettargetinfo(iocp, arg);
662 } else if (cmd == MPTTEST) {
663 return mptctl_readtest(iocp, arg);
664 } else if (cmd == MPTEVENTQUERY) {
665 return mptctl_eventquery(iocp, arg);
666 } else if (cmd == MPTEVENTENABLE) {
667 return mptctl_eventenable(iocp, arg);
668 } else if (cmd == MPTEVENTREPORT) {
669 return mptctl_eventreport(iocp, arg);
670 } else if (cmd == MPTFWREPLACE) {
671 return mptctl_replace_fw(iocp, 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(iocp, arg);
682 else if (cmd == MPTCOMMAND)
683 ret = mptctl_mpt_command(iocp, arg);
684 else if (cmd == MPTHARDRESET)
685 ret = mptctl_do_reset(iocp, arg);
686 else if ((cmd & ~IOCSIZE_MASK) == (HP_GETHOSTINFO & ~IOCSIZE_MASK))
687 ret = mptctl_hp_hostinfo(iocp, arg, _IOC_SIZE(cmd));
688 else if (cmd == HP_GETTARGETINFO)
689 ret = mptctl_hp_targetinfo(iocp, arg);
690 else
691 ret = -EINVAL;
692
693 mutex_unlock(&iocp->ioctl_cmds.mutex);
694
695 return ret;
696}
697
698static long
699mptctl_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
708static int mptctl_do_reset(MPT_ADAPTER *iocp, unsigned long arg)
709{
710 struct mpt_ioctl_diag_reset __user *urinfo = (void __user *) arg;
711 struct mpt_ioctl_diag_reset krinfo;
712
713 if (copy_from_user(&krinfo, urinfo, sizeof(struct mpt_ioctl_diag_reset))) {
714 printk(KERN_ERR MYNAM "%s@%d::mptctl_do_reset - "
715 "Unable to copy mpt_ioctl_diag_reset struct @ %p\n",
716 __FILE__, __LINE__, urinfo);
717 return -EFAULT;
718 }
719
720 dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT "mptctl_do_reset called.\n",
721 iocp->name));
722
723 if (mpt_HardResetHandler(iocp, CAN_SLEEP) != 0) {
724 printk (MYIOC_s_ERR_FMT "%s@%d::mptctl_do_reset - reset failed.\n",
725 iocp->name, __FILE__, __LINE__);
726 return -1;
727 }
728
729 return 0;
730}
731
732/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
733/*
734 * MPT FW download function. Cast the arg into the mpt_fw_xfer structure.
735 * This structure contains: iocnum, firmware length (bytes),
736 * pointer to user space memory where the fw image is stored.
737 *
738 * Outputs: None.
739 * Return: 0 if successful
740 * -EFAULT if data unavailable
741 * -ENXIO if no such device
742 * -EAGAIN if resource problem
743 * -ENOMEM if no memory for SGE
744 * -EMLINK if too many chain buffers required
745 * -EBADRQC if adapter does not support FW download
746 * -EBUSY if adapter is busy
747 * -ENOMSG if FW upload returned bad status
748 */
749static int
750mptctl_fw_download(MPT_ADAPTER *iocp, unsigned long arg)
751{
752 struct mpt_fw_xfer __user *ufwdl = (void __user *) arg;
753 struct mpt_fw_xfer kfwdl;
754
755 if (copy_from_user(&kfwdl, ufwdl, sizeof(struct mpt_fw_xfer))) {
756 printk(KERN_ERR MYNAM "%s@%d::_ioctl_fwdl - "
757 "Unable to copy mpt_fw_xfer struct @ %p\n",
758 __FILE__, __LINE__, ufwdl);
759 return -EFAULT;
760 }
761
762 return mptctl_do_fw_download(iocp, kfwdl.bufp, kfwdl.fwlen);
763}
764
765/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
766/*
767 * FW Download engine.
768 * Outputs: None.
769 * Return: 0 if successful
770 * -EFAULT if data unavailable
771 * -ENXIO if no such device
772 * -EAGAIN if resource problem
773 * -ENOMEM if no memory for SGE
774 * -EMLINK if too many chain buffers required
775 * -EBADRQC if adapter does not support FW download
776 * -EBUSY if adapter is busy
777 * -ENOMSG if FW upload returned bad status
778 */
779static int
780mptctl_do_fw_download(MPT_ADAPTER *iocp, char __user *ufwbuf, size_t fwlen)
781{
782 FWDownload_t *dlmsg;
783 MPT_FRAME_HDR *mf;
784 FWDownloadTCSGE_t *ptsge;
785 MptSge_t *sgl, *sgIn;
786 char *sgOut;
787 struct buflist *buflist;
788 struct buflist *bl;
789 dma_addr_t sgl_dma;
790 int ret;
791 int numfrags = 0;
792 int maxfrags;
793 int n = 0;
794 u32 sgdir;
795 u32 nib;
796 int fw_bytes_copied = 0;
797 int i;
798 int sge_offset = 0;
799 u16 iocstat;
800 pFWDownloadReply_t ReplyMsg = NULL;
801 unsigned long timeleft;
802
803 /* Valid device. Get a message frame and construct the FW download message.
804 */
805 if ((mf = mpt_get_msg_frame(mptctl_id, iocp)) == NULL)
806 return -EAGAIN;
807
808 dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT
809 "mptctl_do_fwdl called. mptctl_id = %xh.\n", iocp->name, mptctl_id));
810 dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT "DbG: kfwdl.bufp = %p\n",
811 iocp->name, ufwbuf));
812 dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT "DbG: kfwdl.fwlen = %d\n",
813 iocp->name, (int)fwlen));
814
815 dlmsg = (FWDownload_t*) mf;
816 ptsge = (FWDownloadTCSGE_t *) &dlmsg->SGL;
817 sgOut = (char *) (ptsge + 1);
818
819 /*
820 * Construct f/w download request
821 */
822 dlmsg->ImageType = MPI_FW_DOWNLOAD_ITYPE_FW;
823 dlmsg->Reserved = 0;
824 dlmsg->ChainOffset = 0;
825 dlmsg->Function = MPI_FUNCTION_FW_DOWNLOAD;
826 dlmsg->Reserved1[0] = dlmsg->Reserved1[1] = dlmsg->Reserved1[2] = 0;
827 if (iocp->facts.MsgVersion >= MPI_VERSION_01_05)
828 dlmsg->MsgFlags = MPI_FW_DOWNLOAD_MSGFLGS_LAST_SEGMENT;
829 else
830 dlmsg->MsgFlags = 0;
831
832
833 /* Set up the Transaction SGE.
834 */
835 ptsge->Reserved = 0;
836 ptsge->ContextSize = 0;
837 ptsge->DetailsLength = 12;
838 ptsge->Flags = MPI_SGE_FLAGS_TRANSACTION_ELEMENT;
839 ptsge->Reserved_0100_Checksum = 0;
840 ptsge->ImageOffset = 0;
841 ptsge->ImageSize = cpu_to_le32(fwlen);
842
843 /* Add the SGL
844 */
845
846 /*
847 * Need to kmalloc area(s) for holding firmware image bytes.
848 * But we need to do it piece meal, using a proper
849 * scatter gather list (with 128kB MAX hunks).
850 *
851 * A practical limit here might be # of sg hunks that fit into
852 * a single IOC request frame; 12 or 8 (see below), so:
853 * For FC9xx: 12 x 128kB == 1.5 mB (max)
854 * For C1030: 8 x 128kB == 1 mB (max)
855 * We could support chaining, but things get ugly(ier:)
856 *
857 * Set the sge_offset to the start of the sgl (bytes).
858 */
859 sgdir = 0x04000000; /* IOC will READ from sys mem */
860 sge_offset = sizeof(MPIHeader_t) + sizeof(FWDownloadTCSGE_t);
861 if ((sgl = kbuf_alloc_2_sgl(fwlen, sgdir, sge_offset,
862 &numfrags, &buflist, &sgl_dma, iocp)) == NULL)
863 return -ENOMEM;
864
865 /*
866 * We should only need SGL with 2 simple_32bit entries (up to 256 kB)
867 * for FC9xx f/w image, but calculate max number of sge hunks
868 * we can fit into a request frame, and limit ourselves to that.
869 * (currently no chain support)
870 * maxfrags = (Request Size - FWdownload Size ) / Size of 32 bit SGE
871 * Request maxfrags
872 * 128 12
873 * 96 8
874 * 64 4
875 */
876 maxfrags = (iocp->req_sz - sizeof(MPIHeader_t) -
877 sizeof(FWDownloadTCSGE_t))
878 / iocp->SGE_size;
879 if (numfrags > maxfrags) {
880 ret = -EMLINK;
881 goto fwdl_out;
882 }
883
884 dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT "DbG: sgl buffer = %p, sgfrags = %d\n",
885 iocp->name, sgl, numfrags));
886
887 /*
888 * Parse SG list, copying sgl itself,
889 * plus f/w image hunks from user space as we go...
890 */
891 ret = -EFAULT;
892 sgIn = sgl;
893 bl = buflist;
894 for (i=0; i < numfrags; i++) {
895
896 /* Get the SGE type: 0 - TCSGE, 3 - Chain, 1 - Simple SGE
897 * Skip everything but Simple. If simple, copy from
898 * user space into kernel space.
899 * Note: we should not have anything but Simple as
900 * Chain SGE are illegal.
901 */
902 nib = (sgIn->FlagsLength & 0x30000000) >> 28;
903 if (nib == 0 || nib == 3) {
904 ;
905 } else if (sgIn->Address) {
906 iocp->add_sge(sgOut, sgIn->FlagsLength, sgIn->Address);
907 n++;
908 if (copy_from_user(bl->kptr, ufwbuf+fw_bytes_copied, bl->len)) {
909 printk(MYIOC_s_ERR_FMT "%s@%d::_ioctl_fwdl - "
910 "Unable to copy f/w buffer hunk#%d @ %p\n",
911 iocp->name, __FILE__, __LINE__, n, ufwbuf);
912 goto fwdl_out;
913 }
914 fw_bytes_copied += bl->len;
915 }
916 sgIn++;
917 bl++;
918 sgOut += iocp->SGE_size;
919 }
920
921 DBG_DUMP_FW_DOWNLOAD(iocp, (u32 *)mf, numfrags);
922
923 /*
924 * Finally, perform firmware download.
925 */
926 ReplyMsg = NULL;
927 SET_MGMT_MSG_CONTEXT(iocp->ioctl_cmds.msg_context, dlmsg->MsgContext);
928 INITIALIZE_MGMT_STATUS(iocp->ioctl_cmds.status)
929 mpt_put_msg_frame(mptctl_id, iocp, mf);
930
931 /* Now wait for the command to complete */
932retry_wait:
933 timeleft = wait_for_completion_timeout(&iocp->ioctl_cmds.done, HZ*60);
934 if (!(iocp->ioctl_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
935 ret = -ETIME;
936 printk(MYIOC_s_WARN_FMT "%s: failed\n", iocp->name, __func__);
937 if (iocp->ioctl_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) {
938 mpt_free_msg_frame(iocp, mf);
939 goto fwdl_out;
940 }
941 if (!timeleft) {
942 printk(MYIOC_s_WARN_FMT
943 "FW download timeout, doorbell=0x%08x\n",
944 iocp->name, mpt_GetIocState(iocp, 0));
945 mptctl_timeout_expired(iocp, mf);
946 } else
947 goto retry_wait;
948 goto fwdl_out;
949 }
950
951 if (!(iocp->ioctl_cmds.status & MPT_MGMT_STATUS_RF_VALID)) {
952 printk(MYIOC_s_WARN_FMT "%s: failed\n", iocp->name, __func__);
953 mpt_free_msg_frame(iocp, mf);
954 ret = -ENODATA;
955 goto fwdl_out;
956 }
957
958 if (sgl)
959 kfree_sgl(sgl, sgl_dma, buflist, iocp);
960
961 ReplyMsg = (pFWDownloadReply_t)iocp->ioctl_cmds.reply;
962 iocstat = le16_to_cpu(ReplyMsg->IOCStatus) & MPI_IOCSTATUS_MASK;
963 if (iocstat == MPI_IOCSTATUS_SUCCESS) {
964 printk(MYIOC_s_INFO_FMT "F/W update successful!\n", iocp->name);
965 return 0;
966 } else if (iocstat == MPI_IOCSTATUS_INVALID_FUNCTION) {
967 printk(MYIOC_s_WARN_FMT "Hmmm... F/W download not supported!?!\n",
968 iocp->name);
969 printk(MYIOC_s_WARN_FMT "(time to go bang on somebodies door)\n",
970 iocp->name);
971 return -EBADRQC;
972 } else if (iocstat == MPI_IOCSTATUS_BUSY) {
973 printk(MYIOC_s_WARN_FMT "IOC_BUSY!\n", iocp->name);
974 printk(MYIOC_s_WARN_FMT "(try again later?)\n", iocp->name);
975 return -EBUSY;
976 } else {
977 printk(MYIOC_s_WARN_FMT "ioctl_fwdl() returned [bad] status = %04xh\n",
978 iocp->name, iocstat);
979 printk(MYIOC_s_WARN_FMT "(bad VooDoo)\n", iocp->name);
980 return -ENOMSG;
981 }
982 return 0;
983
984fwdl_out:
985
986 CLEAR_MGMT_STATUS(iocp->ioctl_cmds.status);
987 SET_MGMT_MSG_CONTEXT(iocp->ioctl_cmds.msg_context, 0);
988 kfree_sgl(sgl, sgl_dma, buflist, iocp);
989 return ret;
990}
991
992/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
993/*
994 * SGE Allocation routine
995 *
996 * Inputs: bytes - number of bytes to be transferred
997 * sgdir - data direction
998 * sge_offset - offset (in bytes) from the start of the request
999 * frame to the first SGE
1000 * ioc - pointer to the mptadapter
1001 * Outputs: frags - number of scatter gather elements
1002 * blp - point to the buflist pointer
1003 * sglbuf_dma - pointer to the (dma) sgl
1004 * Returns: Null if failes
1005 * pointer to the (virtual) sgl if successful.
1006 */
1007static MptSge_t *
1008kbuf_alloc_2_sgl(int bytes, u32 sgdir, int sge_offset, int *frags,
1009 struct buflist **blp, dma_addr_t *sglbuf_dma, MPT_ADAPTER *ioc)
1010{
1011 MptSge_t *sglbuf = NULL; /* pointer to array of SGE */
1012 /* and chain buffers */
1013 struct buflist *buflist = NULL; /* kernel routine */
1014 MptSge_t *sgl;
1015 int numfrags = 0;
1016 int fragcnt = 0;
1017 int alloc_sz = min(bytes,MAX_KMALLOC_SZ); // avoid kernel warning msg!
1018 int bytes_allocd = 0;
1019 int this_alloc;
1020 dma_addr_t pa; // phys addr
1021 int i, buflist_ent;
1022 int sg_spill = MAX_FRAGS_SPILL1;
1023 int dir;
1024
1025 if (bytes < 0)
1026 return NULL;
1027
1028 /* initialization */
1029 *frags = 0;
1030 *blp = NULL;
1031
1032 /* Allocate and initialize an array of kernel
1033 * structures for the SG elements.
1034 */
1035 i = MAX_SGL_BYTES / 8;
1036 buflist = kzalloc(i, GFP_USER);
1037 if (!buflist)
1038 return NULL;
1039 buflist_ent = 0;
1040
1041 /* Allocate a single block of memory to store the sg elements and
1042 * the chain buffers. The calling routine is responsible for
1043 * copying the data in this array into the correct place in the
1044 * request and chain buffers.
1045 */
1046 sglbuf = pci_alloc_consistent(ioc->pcidev, MAX_SGL_BYTES, sglbuf_dma);
1047 if (sglbuf == NULL)
1048 goto free_and_fail;
1049
1050 if (sgdir & 0x04000000)
1051 dir = PCI_DMA_TODEVICE;
1052 else
1053 dir = PCI_DMA_FROMDEVICE;
1054
1055 /* At start:
1056 * sgl = sglbuf = point to beginning of sg buffer
1057 * buflist_ent = 0 = first kernel structure
1058 * sg_spill = number of SGE that can be written before the first
1059 * chain element.
1060 *
1061 */
1062 sgl = sglbuf;
1063 sg_spill = ((ioc->req_sz - sge_offset)/ioc->SGE_size) - 1;
1064 while (bytes_allocd < bytes) {
1065 this_alloc = min(alloc_sz, bytes-bytes_allocd);
1066 buflist[buflist_ent].len = this_alloc;
1067 buflist[buflist_ent].kptr = pci_alloc_consistent(ioc->pcidev,
1068 this_alloc,
1069 &pa);
1070 if (buflist[buflist_ent].kptr == NULL) {
1071 alloc_sz = alloc_sz / 2;
1072 if (alloc_sz == 0) {
1073 printk(MYIOC_s_WARN_FMT "-SG: No can do - "
1074 "not enough memory! :-(\n", ioc->name);
1075 printk(MYIOC_s_WARN_FMT "-SG: (freeing %d frags)\n",
1076 ioc->name, numfrags);
1077 goto free_and_fail;
1078 }
1079 continue;
1080 } else {
1081 dma_addr_t dma_addr;
1082
1083 bytes_allocd += this_alloc;
1084 sgl->FlagsLength = (0x10000000|sgdir|this_alloc);
1085 dma_addr = pci_map_single(ioc->pcidev,
1086 buflist[buflist_ent].kptr, this_alloc, dir);
1087 sgl->Address = dma_addr;
1088
1089 fragcnt++;
1090 numfrags++;
1091 sgl++;
1092 buflist_ent++;
1093 }
1094
1095 if (bytes_allocd >= bytes)
1096 break;
1097
1098 /* Need to chain? */
1099 if (fragcnt == sg_spill) {
1100 printk(MYIOC_s_WARN_FMT
1101 "-SG: No can do - " "Chain required! :-(\n", ioc->name);
1102 printk(MYIOC_s_WARN_FMT "(freeing %d frags)\n", ioc->name, numfrags);
1103 goto free_and_fail;
1104 }
1105
1106 /* overflow check... */
1107 if (numfrags*8 > MAX_SGL_BYTES){
1108 /* GRRRRR... */
1109 printk(MYIOC_s_WARN_FMT "-SG: No can do - "
1110 "too many SG frags! :-(\n", ioc->name);
1111 printk(MYIOC_s_WARN_FMT "-SG: (freeing %d frags)\n",
1112 ioc->name, numfrags);
1113 goto free_and_fail;
1114 }
1115 }
1116
1117 /* Last sge fixup: set LE+eol+eob bits */
1118 sgl[-1].FlagsLength |= 0xC1000000;
1119
1120 *frags = numfrags;
1121 *blp = buflist;
1122
1123 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "-SG: kbuf_alloc_2_sgl() - "
1124 "%d SG frags generated!\n", ioc->name, numfrags));
1125
1126 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "-SG: kbuf_alloc_2_sgl() - "
1127 "last (big) alloc_sz=%d\n", ioc->name, alloc_sz));
1128
1129 return sglbuf;
1130
1131free_and_fail:
1132 if (sglbuf != NULL) {
1133 for (i = 0; i < numfrags; i++) {
1134 dma_addr_t dma_addr;
1135 u8 *kptr;
1136 int len;
1137
1138 if ((sglbuf[i].FlagsLength >> 24) == 0x30)
1139 continue;
1140
1141 dma_addr = sglbuf[i].Address;
1142 kptr = buflist[i].kptr;
1143 len = buflist[i].len;
1144
1145 pci_free_consistent(ioc->pcidev, len, kptr, dma_addr);
1146 }
1147 pci_free_consistent(ioc->pcidev, MAX_SGL_BYTES, sglbuf, *sglbuf_dma);
1148 }
1149 kfree(buflist);
1150 return NULL;
1151}
1152
1153/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1154/*
1155 * Routine to free the SGL elements.
1156 */
1157static void
1158kfree_sgl(MptSge_t *sgl, dma_addr_t sgl_dma, struct buflist *buflist, MPT_ADAPTER *ioc)
1159{
1160 MptSge_t *sg = sgl;
1161 struct buflist *bl = buflist;
1162 u32 nib;
1163 int dir;
1164 int n = 0;
1165
1166 if (sg->FlagsLength & 0x04000000)
1167 dir = PCI_DMA_TODEVICE;
1168 else
1169 dir = PCI_DMA_FROMDEVICE;
1170
1171 nib = (sg->FlagsLength & 0xF0000000) >> 28;
1172 while (! (nib & 0x4)) { /* eob */
1173 /* skip ignore/chain. */
1174 if (nib == 0 || nib == 3) {
1175 ;
1176 } else if (sg->Address) {
1177 dma_addr_t dma_addr;
1178 void *kptr;
1179 int len;
1180
1181 dma_addr = sg->Address;
1182 kptr = bl->kptr;
1183 len = bl->len;
1184 pci_unmap_single(ioc->pcidev, dma_addr, len, dir);
1185 pci_free_consistent(ioc->pcidev, len, kptr, dma_addr);
1186 n++;
1187 }
1188 sg++;
1189 bl++;
1190 nib = (le32_to_cpu(sg->FlagsLength) & 0xF0000000) >> 28;
1191 }
1192
1193 /* we're at eob! */
1194 if (sg->Address) {
1195 dma_addr_t dma_addr;
1196 void *kptr;
1197 int len;
1198
1199 dma_addr = sg->Address;
1200 kptr = bl->kptr;
1201 len = bl->len;
1202 pci_unmap_single(ioc->pcidev, dma_addr, len, dir);
1203 pci_free_consistent(ioc->pcidev, len, kptr, dma_addr);
1204 n++;
1205 }
1206
1207 pci_free_consistent(ioc->pcidev, MAX_SGL_BYTES, sgl, sgl_dma);
1208 kfree(buflist);
1209 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "-SG: Free'd 1 SGL buf + %d kbufs!\n",
1210 ioc->name, n));
1211}
1212
1213/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1214/*
1215 * mptctl_getiocinfo - Query the host adapter for IOC information.
1216 * @arg: User space argument
1217 *
1218 * Outputs: None.
1219 * Return: 0 if successful
1220 * -EFAULT if data unavailable
1221 * -ENODEV if no such device/adapter
1222 */
1223static int
1224mptctl_getiocinfo (MPT_ADAPTER *ioc, unsigned long arg, unsigned int data_size)
1225{
1226 struct mpt_ioctl_iocinfo __user *uarg = (void __user *) arg;
1227 struct mpt_ioctl_iocinfo *karg;
1228 struct pci_dev *pdev;
1229 unsigned int port;
1230 int cim_rev;
1231 struct scsi_device *sdev;
1232 VirtDevice *vdevice;
1233
1234 /* Add of PCI INFO results in unaligned access for
1235 * IA64 and Sparc. Reset long to int. Return no PCI
1236 * data for obsolete format.
1237 */
1238 if (data_size == sizeof(struct mpt_ioctl_iocinfo_rev0))
1239 cim_rev = 0;
1240 else if (data_size == sizeof(struct mpt_ioctl_iocinfo_rev1))
1241 cim_rev = 1;
1242 else if (data_size == sizeof(struct mpt_ioctl_iocinfo))
1243 cim_rev = 2;
1244 else if (data_size == (sizeof(struct mpt_ioctl_iocinfo_rev0)+12))
1245 cim_rev = 0; /* obsolete */
1246 else
1247 return -EFAULT;
1248
1249 karg = memdup_user(uarg, data_size);
1250 if (IS_ERR(karg)) {
1251 printk(KERN_ERR MYNAM "%s@%d::mpt_ioctl_iocinfo() - memdup_user returned error [%ld]\n",
1252 __FILE__, __LINE__, PTR_ERR(karg));
1253 return PTR_ERR(karg);
1254 }
1255
1256 /* Verify the data transfer size is correct. */
1257 if (karg->hdr.maxDataSize != data_size) {
1258 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_getiocinfo - "
1259 "Structure size mismatch. Command not completed.\n",
1260 ioc->name, __FILE__, __LINE__);
1261 kfree(karg);
1262 return -EFAULT;
1263 }
1264
1265 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_getiocinfo called.\n",
1266 ioc->name));
1267
1268 /* Fill in the data and return the structure to the calling
1269 * program
1270 */
1271 if (ioc->bus_type == SAS)
1272 karg->adapterType = MPT_IOCTL_INTERFACE_SAS;
1273 else if (ioc->bus_type == FC)
1274 karg->adapterType = MPT_IOCTL_INTERFACE_FC;
1275 else
1276 karg->adapterType = MPT_IOCTL_INTERFACE_SCSI;
1277
1278 if (karg->hdr.port > 1) {
1279 kfree(karg);
1280 return -EINVAL;
1281 }
1282 port = karg->hdr.port;
1283
1284 karg->port = port;
1285 pdev = (struct pci_dev *) ioc->pcidev;
1286
1287 karg->pciId = pdev->device;
1288 karg->hwRev = pdev->revision;
1289 karg->subSystemDevice = pdev->subsystem_device;
1290 karg->subSystemVendor = pdev->subsystem_vendor;
1291
1292 if (cim_rev == 1) {
1293 /* Get the PCI bus, device, and function numbers for the IOC
1294 */
1295 karg->pciInfo.u.bits.busNumber = pdev->bus->number;
1296 karg->pciInfo.u.bits.deviceNumber = PCI_SLOT( pdev->devfn );
1297 karg->pciInfo.u.bits.functionNumber = PCI_FUNC( pdev->devfn );
1298 } else if (cim_rev == 2) {
1299 /* Get the PCI bus, device, function and segment ID numbers
1300 for the IOC */
1301 karg->pciInfo.u.bits.busNumber = pdev->bus->number;
1302 karg->pciInfo.u.bits.deviceNumber = PCI_SLOT( pdev->devfn );
1303 karg->pciInfo.u.bits.functionNumber = PCI_FUNC( pdev->devfn );
1304 karg->pciInfo.segmentID = pci_domain_nr(pdev->bus);
1305 }
1306
1307 /* Get number of devices
1308 */
1309 karg->numDevices = 0;
1310 if (ioc->sh) {
1311 shost_for_each_device(sdev, ioc->sh) {
1312 vdevice = sdev->hostdata;
1313 if (vdevice == NULL || vdevice->vtarget == NULL)
1314 continue;
1315 if (vdevice->vtarget->tflags &
1316 MPT_TARGET_FLAGS_RAID_COMPONENT)
1317 continue;
1318 karg->numDevices++;
1319 }
1320 }
1321
1322 /* Set the BIOS and FW Version
1323 */
1324 karg->FWVersion = ioc->facts.FWVersion.Word;
1325 karg->BIOSVersion = ioc->biosVersion;
1326
1327 /* Set the Version Strings.
1328 */
1329 strncpy (karg->driverVersion, MPT_LINUX_PACKAGE_NAME, MPT_IOCTL_VERSION_LENGTH);
1330 karg->driverVersion[MPT_IOCTL_VERSION_LENGTH-1]='\0';
1331
1332 karg->busChangeEvent = 0;
1333 karg->hostId = ioc->pfacts[port].PortSCSIID;
1334 karg->rsvd[0] = karg->rsvd[1] = 0;
1335
1336 /* Copy the data from kernel memory to user memory
1337 */
1338 if (copy_to_user((char __user *)arg, karg, data_size)) {
1339 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_getiocinfo - "
1340 "Unable to write out mpt_ioctl_iocinfo struct @ %p\n",
1341 ioc->name, __FILE__, __LINE__, uarg);
1342 kfree(karg);
1343 return -EFAULT;
1344 }
1345
1346 kfree(karg);
1347 return 0;
1348}
1349
1350/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1351/*
1352 * mptctl_gettargetinfo - Query the host adapter for target information.
1353 * @arg: User space argument
1354 *
1355 * Outputs: None.
1356 * Return: 0 if successful
1357 * -EFAULT if data unavailable
1358 * -ENODEV if no such device/adapter
1359 */
1360static int
1361mptctl_gettargetinfo (MPT_ADAPTER *ioc, unsigned long arg)
1362{
1363 struct mpt_ioctl_targetinfo __user *uarg = (void __user *) arg;
1364 struct mpt_ioctl_targetinfo karg;
1365 VirtDevice *vdevice;
1366 char *pmem;
1367 int *pdata;
1368 int numDevices = 0;
1369 int lun;
1370 int maxWordsLeft;
1371 int numBytes;
1372 u8 port;
1373 struct scsi_device *sdev;
1374
1375 if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_targetinfo))) {
1376 printk(KERN_ERR MYNAM "%s@%d::mptctl_gettargetinfo - "
1377 "Unable to read in mpt_ioctl_targetinfo struct @ %p\n",
1378 __FILE__, __LINE__, uarg);
1379 return -EFAULT;
1380 }
1381
1382 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_gettargetinfo called.\n",
1383 ioc->name));
1384 /* Get the port number and set the maximum number of bytes
1385 * in the returned structure.
1386 * Ignore the port setting.
1387 */
1388 numBytes = karg.hdr.maxDataSize - sizeof(mpt_ioctl_header);
1389 maxWordsLeft = numBytes/sizeof(int);
1390 port = karg.hdr.port;
1391
1392 if (maxWordsLeft <= 0) {
1393 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_gettargetinfo() - no memory available!\n",
1394 ioc->name, __FILE__, __LINE__);
1395 return -ENOMEM;
1396 }
1397
1398 /* Fill in the data and return the structure to the calling
1399 * program
1400 */
1401
1402 /* struct mpt_ioctl_targetinfo does not contain sufficient space
1403 * for the target structures so when the IOCTL is called, there is
1404 * not sufficient stack space for the structure. Allocate memory,
1405 * populate the memory, copy back to the user, then free memory.
1406 * targetInfo format:
1407 * bits 31-24: reserved
1408 * 23-16: LUN
1409 * 15- 8: Bus Number
1410 * 7- 0: Target ID
1411 */
1412 pmem = kzalloc(numBytes, GFP_KERNEL);
1413 if (!pmem) {
1414 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_gettargetinfo() - no memory available!\n",
1415 ioc->name, __FILE__, __LINE__);
1416 return -ENOMEM;
1417 }
1418 pdata = (int *) pmem;
1419
1420 /* Get number of devices
1421 */
1422 if (ioc->sh){
1423 shost_for_each_device(sdev, ioc->sh) {
1424 if (!maxWordsLeft)
1425 continue;
1426 vdevice = sdev->hostdata;
1427 if (vdevice == NULL || vdevice->vtarget == NULL)
1428 continue;
1429 if (vdevice->vtarget->tflags &
1430 MPT_TARGET_FLAGS_RAID_COMPONENT)
1431 continue;
1432 lun = (vdevice->vtarget->raidVolume) ? 0x80 : vdevice->lun;
1433 *pdata = (((u8)lun << 16) + (vdevice->vtarget->channel << 8) +
1434 (vdevice->vtarget->id ));
1435 pdata++;
1436 numDevices++;
1437 --maxWordsLeft;
1438 }
1439 }
1440 karg.numDevices = numDevices;
1441
1442 /* Copy part of the data from kernel memory to user memory
1443 */
1444 if (copy_to_user((char __user *)arg, &karg,
1445 sizeof(struct mpt_ioctl_targetinfo))) {
1446 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_gettargetinfo - "
1447 "Unable to write out mpt_ioctl_targetinfo struct @ %p\n",
1448 ioc->name, __FILE__, __LINE__, uarg);
1449 kfree(pmem);
1450 return -EFAULT;
1451 }
1452
1453 /* Copy the remaining data from kernel memory to user memory
1454 */
1455 if (copy_to_user(uarg->targetInfo, pmem, numBytes)) {
1456 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_gettargetinfo - "
1457 "Unable to write out mpt_ioctl_targetinfo struct @ %p\n",
1458 ioc->name, __FILE__, __LINE__, pdata);
1459 kfree(pmem);
1460 return -EFAULT;
1461 }
1462
1463 kfree(pmem);
1464
1465 return 0;
1466}
1467
1468/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1469/* MPT IOCTL Test function.
1470 *
1471 * Outputs: None.
1472 * Return: 0 if successful
1473 * -EFAULT if data unavailable
1474 * -ENODEV if no such device/adapter
1475 */
1476static int
1477mptctl_readtest (MPT_ADAPTER *ioc, unsigned long arg)
1478{
1479 struct mpt_ioctl_test __user *uarg = (void __user *) arg;
1480 struct mpt_ioctl_test karg;
1481
1482 if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_test))) {
1483 printk(KERN_ERR MYNAM "%s@%d::mptctl_readtest - "
1484 "Unable to read in mpt_ioctl_test struct @ %p\n",
1485 __FILE__, __LINE__, uarg);
1486 return -EFAULT;
1487 }
1488
1489 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_readtest called.\n",
1490 ioc->name));
1491 /* Fill in the data and return the structure to the calling
1492 * program
1493 */
1494
1495#ifdef MFCNT
1496 karg.chip_type = ioc->mfcnt;
1497#else
1498 karg.chip_type = ioc->pcidev->device;
1499#endif
1500 strncpy (karg.name, ioc->name, MPT_MAX_NAME);
1501 karg.name[MPT_MAX_NAME-1]='\0';
1502 strncpy (karg.product, ioc->prod_name, MPT_PRODUCT_LENGTH);
1503 karg.product[MPT_PRODUCT_LENGTH-1]='\0';
1504
1505 /* Copy the data from kernel memory to user memory
1506 */
1507 if (copy_to_user((char __user *)arg, &karg, sizeof(struct mpt_ioctl_test))) {
1508 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_readtest - "
1509 "Unable to write out mpt_ioctl_test struct @ %p\n",
1510 ioc->name, __FILE__, __LINE__, uarg);
1511 return -EFAULT;
1512 }
1513
1514 return 0;
1515}
1516
1517/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1518/*
1519 * mptctl_eventquery - Query the host adapter for the event types
1520 * that are being logged.
1521 * @arg: User space argument
1522 *
1523 * Outputs: None.
1524 * Return: 0 if successful
1525 * -EFAULT if data unavailable
1526 * -ENODEV if no such device/adapter
1527 */
1528static int
1529mptctl_eventquery (MPT_ADAPTER *ioc, unsigned long arg)
1530{
1531 struct mpt_ioctl_eventquery __user *uarg = (void __user *) arg;
1532 struct mpt_ioctl_eventquery karg;
1533
1534 if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_eventquery))) {
1535 printk(KERN_ERR MYNAM "%s@%d::mptctl_eventquery - "
1536 "Unable to read in mpt_ioctl_eventquery struct @ %p\n",
1537 __FILE__, __LINE__, uarg);
1538 return -EFAULT;
1539 }
1540
1541 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_eventquery called.\n",
1542 ioc->name));
1543 karg.eventEntries = MPTCTL_EVENT_LOG_SIZE;
1544 karg.eventTypes = ioc->eventTypes;
1545
1546 /* Copy the data from kernel memory to user memory
1547 */
1548 if (copy_to_user((char __user *)arg, &karg, sizeof(struct mpt_ioctl_eventquery))) {
1549 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_eventquery - "
1550 "Unable to write out mpt_ioctl_eventquery struct @ %p\n",
1551 ioc->name, __FILE__, __LINE__, uarg);
1552 return -EFAULT;
1553 }
1554 return 0;
1555}
1556
1557/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1558static int
1559mptctl_eventenable (MPT_ADAPTER *ioc, unsigned long arg)
1560{
1561 struct mpt_ioctl_eventenable __user *uarg = (void __user *) arg;
1562 struct mpt_ioctl_eventenable karg;
1563
1564 if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_eventenable))) {
1565 printk(KERN_ERR MYNAM "%s@%d::mptctl_eventenable - "
1566 "Unable to read in mpt_ioctl_eventenable struct @ %p\n",
1567 __FILE__, __LINE__, uarg);
1568 return -EFAULT;
1569 }
1570
1571 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_eventenable called.\n",
1572 ioc->name));
1573 if (ioc->events == NULL) {
1574 /* Have not yet allocated memory - do so now.
1575 */
1576 int sz = MPTCTL_EVENT_LOG_SIZE * sizeof(MPT_IOCTL_EVENTS);
1577 ioc->events = kzalloc(sz, GFP_KERNEL);
1578 if (!ioc->events) {
1579 printk(MYIOC_s_ERR_FMT
1580 ": ERROR - Insufficient memory to add adapter!\n",
1581 ioc->name);
1582 return -ENOMEM;
1583 }
1584 ioc->alloc_total += sz;
1585
1586 ioc->eventContext = 0;
1587 }
1588
1589 /* Update the IOC event logging flag.
1590 */
1591 ioc->eventTypes = karg.eventTypes;
1592
1593 return 0;
1594}
1595
1596/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1597static int
1598mptctl_eventreport (MPT_ADAPTER *ioc, unsigned long arg)
1599{
1600 struct mpt_ioctl_eventreport __user *uarg = (void __user *) arg;
1601 struct mpt_ioctl_eventreport karg;
1602 int numBytes, maxEvents, max;
1603
1604 if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_eventreport))) {
1605 printk(KERN_ERR MYNAM "%s@%d::mptctl_eventreport - "
1606 "Unable to read in mpt_ioctl_eventreport struct @ %p\n",
1607 __FILE__, __LINE__, uarg);
1608 return -EFAULT;
1609 }
1610
1611 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_eventreport called.\n",
1612 ioc->name));
1613
1614 numBytes = karg.hdr.maxDataSize - sizeof(mpt_ioctl_header);
1615 maxEvents = numBytes/sizeof(MPT_IOCTL_EVENTS);
1616
1617
1618 max = MPTCTL_EVENT_LOG_SIZE < maxEvents ? MPTCTL_EVENT_LOG_SIZE : maxEvents;
1619
1620 /* If fewer than 1 event is requested, there must have
1621 * been some type of error.
1622 */
1623 if ((max < 1) || !ioc->events)
1624 return -ENODATA;
1625
1626 /* reset this flag so SIGIO can restart */
1627 ioc->aen_event_read_flag=0;
1628
1629 /* Copy the data from kernel memory to user memory
1630 */
1631 numBytes = max * sizeof(MPT_IOCTL_EVENTS);
1632 if (copy_to_user(uarg->eventData, ioc->events, numBytes)) {
1633 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_eventreport - "
1634 "Unable to write out mpt_ioctl_eventreport struct @ %p\n",
1635 ioc->name, __FILE__, __LINE__, ioc->events);
1636 return -EFAULT;
1637 }
1638
1639 return 0;
1640}
1641
1642/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1643static int
1644mptctl_replace_fw (MPT_ADAPTER *ioc, unsigned long arg)
1645{
1646 struct mpt_ioctl_replace_fw __user *uarg = (void __user *) arg;
1647 struct mpt_ioctl_replace_fw karg;
1648 int newFwSize;
1649
1650 if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_replace_fw))) {
1651 printk(KERN_ERR MYNAM "%s@%d::mptctl_replace_fw - "
1652 "Unable to read in mpt_ioctl_replace_fw struct @ %p\n",
1653 __FILE__, __LINE__, uarg);
1654 return -EFAULT;
1655 }
1656
1657 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_replace_fw called.\n",
1658 ioc->name));
1659 /* If caching FW, Free the old FW image
1660 */
1661 if (ioc->cached_fw == NULL)
1662 return 0;
1663
1664 mpt_free_fw_memory(ioc);
1665
1666 /* Allocate memory for the new FW image
1667 */
1668 newFwSize = ALIGN(karg.newImageSize, 4);
1669
1670 mpt_alloc_fw_memory(ioc, newFwSize);
1671 if (ioc->cached_fw == NULL)
1672 return -ENOMEM;
1673
1674 /* Copy the data from user memory to kernel space
1675 */
1676 if (copy_from_user(ioc->cached_fw, uarg->newImage, newFwSize)) {
1677 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_replace_fw - "
1678 "Unable to read in mpt_ioctl_replace_fw image "
1679 "@ %p\n", ioc->name, __FILE__, __LINE__, uarg);
1680 mpt_free_fw_memory(ioc);
1681 return -EFAULT;
1682 }
1683
1684 /* Update IOCFactsReply
1685 */
1686 ioc->facts.FWImageSize = newFwSize;
1687 return 0;
1688}
1689
1690/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1691/* MPT IOCTL MPTCOMMAND function.
1692 * Cast the arg into the mpt_ioctl_mpt_command structure.
1693 *
1694 * Outputs: None.
1695 * Return: 0 if successful
1696 * -EBUSY if previous command timeout and IOC reset is not complete.
1697 * -EFAULT if data unavailable
1698 * -ENODEV if no such device/adapter
1699 * -ETIME if timer expires
1700 * -ENOMEM if memory allocation error
1701 */
1702static int
1703mptctl_mpt_command (MPT_ADAPTER *ioc, unsigned long arg)
1704{
1705 struct mpt_ioctl_command __user *uarg = (void __user *) arg;
1706 struct mpt_ioctl_command karg;
1707 int rc;
1708
1709
1710 if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_command))) {
1711 printk(KERN_ERR MYNAM "%s@%d::mptctl_mpt_command - "
1712 "Unable to read in mpt_ioctl_command struct @ %p\n",
1713 __FILE__, __LINE__, uarg);
1714 return -EFAULT;
1715 }
1716
1717 rc = mptctl_do_mpt_command (ioc, karg, &uarg->MF);
1718
1719 return rc;
1720}
1721
1722/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1723/* Worker routine for the IOCTL MPTCOMMAND and MPTCOMMAND32 (sparc) commands.
1724 *
1725 * Outputs: None.
1726 * Return: 0 if successful
1727 * -EBUSY if previous command timeout and IOC reset is not complete.
1728 * -EFAULT if data unavailable
1729 * -ENODEV if no such device/adapter
1730 * -ETIME if timer expires
1731 * -ENOMEM if memory allocation error
1732 * -EPERM if SCSI I/O and target is untagged
1733 */
1734static int
1735mptctl_do_mpt_command (MPT_ADAPTER *ioc, struct mpt_ioctl_command karg, void __user *mfPtr)
1736{
1737 MPT_FRAME_HDR *mf = NULL;
1738 MPIHeader_t *hdr;
1739 char *psge;
1740 struct buflist bufIn; /* data In buffer */
1741 struct buflist bufOut; /* data Out buffer */
1742 dma_addr_t dma_addr_in;
1743 dma_addr_t dma_addr_out;
1744 int sgSize = 0; /* Num SG elements */
1745 int flagsLength;
1746 int sz, rc = 0;
1747 int msgContext;
1748 u16 req_idx;
1749 ulong timeout;
1750 unsigned long timeleft;
1751 struct scsi_device *sdev;
1752 unsigned long flags;
1753 u8 function;
1754
1755 /* bufIn and bufOut are used for user to kernel space transfers
1756 */
1757 bufIn.kptr = bufOut.kptr = NULL;
1758 bufIn.len = bufOut.len = 0;
1759
1760 spin_lock_irqsave(&ioc->taskmgmt_lock, flags);
1761 if (ioc->ioc_reset_in_progress) {
1762 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
1763 printk(KERN_ERR MYNAM "%s@%d::mptctl_do_mpt_command - "
1764 "Busy with diagnostic reset\n", __FILE__, __LINE__);
1765 return -EBUSY;
1766 }
1767 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
1768
1769 /* Basic sanity checks to prevent underflows or integer overflows */
1770 if (karg.maxReplyBytes < 0 ||
1771 karg.dataInSize < 0 ||
1772 karg.dataOutSize < 0 ||
1773 karg.dataSgeOffset < 0 ||
1774 karg.maxSenseBytes < 0 ||
1775 karg.dataSgeOffset > ioc->req_sz / 4)
1776 return -EINVAL;
1777
1778 /* Verify that the final request frame will not be too large.
1779 */
1780 sz = karg.dataSgeOffset * 4;
1781 if (karg.dataInSize > 0)
1782 sz += ioc->SGE_size;
1783 if (karg.dataOutSize > 0)
1784 sz += ioc->SGE_size;
1785
1786 if (sz > ioc->req_sz) {
1787 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
1788 "Request frame too large (%d) maximum (%d)\n",
1789 ioc->name, __FILE__, __LINE__, sz, ioc->req_sz);
1790 return -EFAULT;
1791 }
1792
1793 /* Get a free request frame and save the message context.
1794 */
1795 if ((mf = mpt_get_msg_frame(mptctl_id, ioc)) == NULL)
1796 return -EAGAIN;
1797
1798 hdr = (MPIHeader_t *) mf;
1799 msgContext = le32_to_cpu(hdr->MsgContext);
1800 req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
1801
1802 /* Copy the request frame
1803 * Reset the saved message context.
1804 * Request frame in user space
1805 */
1806 if (copy_from_user(mf, mfPtr, karg.dataSgeOffset * 4)) {
1807 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
1808 "Unable to read MF from mpt_ioctl_command struct @ %p\n",
1809 ioc->name, __FILE__, __LINE__, mfPtr);
1810 function = -1;
1811 rc = -EFAULT;
1812 goto done_free_mem;
1813 }
1814 hdr->MsgContext = cpu_to_le32(msgContext);
1815 function = hdr->Function;
1816
1817
1818 /* Verify that this request is allowed.
1819 */
1820 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "sending mpi function (0x%02X), req=%p\n",
1821 ioc->name, hdr->Function, mf));
1822
1823 switch (function) {
1824 case MPI_FUNCTION_IOC_FACTS:
1825 case MPI_FUNCTION_PORT_FACTS:
1826 karg.dataOutSize = karg.dataInSize = 0;
1827 break;
1828
1829 case MPI_FUNCTION_CONFIG:
1830 {
1831 Config_t *config_frame;
1832 config_frame = (Config_t *)mf;
1833 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "\ttype=0x%02x ext_type=0x%02x "
1834 "number=0x%02x action=0x%02x\n", ioc->name,
1835 config_frame->Header.PageType,
1836 config_frame->ExtPageType,
1837 config_frame->Header.PageNumber,
1838 config_frame->Action));
1839 break;
1840 }
1841
1842 case MPI_FUNCTION_FC_COMMON_TRANSPORT_SEND:
1843 case MPI_FUNCTION_FC_EX_LINK_SRVC_SEND:
1844 case MPI_FUNCTION_FW_UPLOAD:
1845 case MPI_FUNCTION_SCSI_ENCLOSURE_PROCESSOR:
1846 case MPI_FUNCTION_FW_DOWNLOAD:
1847 case MPI_FUNCTION_FC_PRIMITIVE_SEND:
1848 case MPI_FUNCTION_TOOLBOX:
1849 case MPI_FUNCTION_SAS_IO_UNIT_CONTROL:
1850 break;
1851
1852 case MPI_FUNCTION_SCSI_IO_REQUEST:
1853 if (ioc->sh) {
1854 SCSIIORequest_t *pScsiReq = (SCSIIORequest_t *) mf;
1855 int qtag = MPI_SCSIIO_CONTROL_UNTAGGED;
1856 int scsidir = 0;
1857 int dataSize;
1858 u32 id;
1859
1860 id = (ioc->devices_per_bus == 0) ? 256 : ioc->devices_per_bus;
1861 if (pScsiReq->TargetID > id) {
1862 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
1863 "Target ID out of bounds. \n",
1864 ioc->name, __FILE__, __LINE__);
1865 rc = -ENODEV;
1866 goto done_free_mem;
1867 }
1868
1869 if (pScsiReq->Bus >= ioc->number_of_buses) {
1870 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
1871 "Target Bus out of bounds. \n",
1872 ioc->name, __FILE__, __LINE__);
1873 rc = -ENODEV;
1874 goto done_free_mem;
1875 }
1876
1877 pScsiReq->MsgFlags &= ~MPI_SCSIIO_MSGFLGS_SENSE_WIDTH;
1878 pScsiReq->MsgFlags |= mpt_msg_flags(ioc);
1879
1880
1881 /* verify that app has not requested
1882 * more sense data than driver
1883 * can provide, if so, reset this parameter
1884 * set the sense buffer pointer low address
1885 * update the control field to specify Q type
1886 */
1887 if (karg.maxSenseBytes > MPT_SENSE_BUFFER_SIZE)
1888 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
1889 else
1890 pScsiReq->SenseBufferLength = karg.maxSenseBytes;
1891
1892 pScsiReq->SenseBufferLowAddr =
1893 cpu_to_le32(ioc->sense_buf_low_dma
1894 + (req_idx * MPT_SENSE_BUFFER_ALLOC));
1895
1896 shost_for_each_device(sdev, ioc->sh) {
1897 struct scsi_target *starget = scsi_target(sdev);
1898 VirtTarget *vtarget = starget->hostdata;
1899
1900 if (vtarget == NULL)
1901 continue;
1902
1903 if ((pScsiReq->TargetID == vtarget->id) &&
1904 (pScsiReq->Bus == vtarget->channel) &&
1905 (vtarget->tflags & MPT_TARGET_FLAGS_Q_YES))
1906 qtag = MPI_SCSIIO_CONTROL_SIMPLEQ;
1907 }
1908
1909 /* Have the IOCTL driver set the direction based
1910 * on the dataOutSize (ordering issue with Sparc).
1911 */
1912 if (karg.dataOutSize > 0) {
1913 scsidir = MPI_SCSIIO_CONTROL_WRITE;
1914 dataSize = karg.dataOutSize;
1915 } else {
1916 scsidir = MPI_SCSIIO_CONTROL_READ;
1917 dataSize = karg.dataInSize;
1918 }
1919
1920 pScsiReq->Control = cpu_to_le32(scsidir | qtag);
1921 pScsiReq->DataLength = cpu_to_le32(dataSize);
1922
1923
1924 } else {
1925 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
1926 "SCSI driver is not loaded. \n",
1927 ioc->name, __FILE__, __LINE__);
1928 rc = -EFAULT;
1929 goto done_free_mem;
1930 }
1931 break;
1932
1933 case MPI_FUNCTION_SMP_PASSTHROUGH:
1934 /* Check mf->PassthruFlags to determine if
1935 * transfer is ImmediateMode or not.
1936 * Immediate mode returns data in the ReplyFrame.
1937 * Else, we are sending request and response data
1938 * in two SGLs at the end of the mf.
1939 */
1940 break;
1941
1942 case MPI_FUNCTION_SATA_PASSTHROUGH:
1943 if (!ioc->sh) {
1944 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
1945 "SCSI driver is not loaded. \n",
1946 ioc->name, __FILE__, __LINE__);
1947 rc = -EFAULT;
1948 goto done_free_mem;
1949 }
1950 break;
1951
1952 case MPI_FUNCTION_RAID_ACTION:
1953 /* Just add a SGE
1954 */
1955 break;
1956
1957 case MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
1958 if (ioc->sh) {
1959 SCSIIORequest_t *pScsiReq = (SCSIIORequest_t *) mf;
1960 int qtag = MPI_SCSIIO_CONTROL_SIMPLEQ;
1961 int scsidir = MPI_SCSIIO_CONTROL_READ;
1962 int dataSize;
1963
1964 pScsiReq->MsgFlags &= ~MPI_SCSIIO_MSGFLGS_SENSE_WIDTH;
1965 pScsiReq->MsgFlags |= mpt_msg_flags(ioc);
1966
1967
1968 /* verify that app has not requested
1969 * more sense data than driver
1970 * can provide, if so, reset this parameter
1971 * set the sense buffer pointer low address
1972 * update the control field to specify Q type
1973 */
1974 if (karg.maxSenseBytes > MPT_SENSE_BUFFER_SIZE)
1975 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
1976 else
1977 pScsiReq->SenseBufferLength = karg.maxSenseBytes;
1978
1979 pScsiReq->SenseBufferLowAddr =
1980 cpu_to_le32(ioc->sense_buf_low_dma
1981 + (req_idx * MPT_SENSE_BUFFER_ALLOC));
1982
1983 /* All commands to physical devices are tagged
1984 */
1985
1986 /* Have the IOCTL driver set the direction based
1987 * on the dataOutSize (ordering issue with Sparc).
1988 */
1989 if (karg.dataOutSize > 0) {
1990 scsidir = MPI_SCSIIO_CONTROL_WRITE;
1991 dataSize = karg.dataOutSize;
1992 } else {
1993 scsidir = MPI_SCSIIO_CONTROL_READ;
1994 dataSize = karg.dataInSize;
1995 }
1996
1997 pScsiReq->Control = cpu_to_le32(scsidir | qtag);
1998 pScsiReq->DataLength = cpu_to_le32(dataSize);
1999
2000 } else {
2001 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
2002 "SCSI driver is not loaded. \n",
2003 ioc->name, __FILE__, __LINE__);
2004 rc = -EFAULT;
2005 goto done_free_mem;
2006 }
2007 break;
2008
2009 case MPI_FUNCTION_SCSI_TASK_MGMT:
2010 {
2011 SCSITaskMgmt_t *pScsiTm;
2012 pScsiTm = (SCSITaskMgmt_t *)mf;
2013 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2014 "\tTaskType=0x%x MsgFlags=0x%x "
2015 "TaskMsgContext=0x%x id=%d channel=%d\n",
2016 ioc->name, pScsiTm->TaskType, le32_to_cpu
2017 (pScsiTm->TaskMsgContext), pScsiTm->MsgFlags,
2018 pScsiTm->TargetID, pScsiTm->Bus));
2019 break;
2020 }
2021
2022 case MPI_FUNCTION_IOC_INIT:
2023 {
2024 IOCInit_t *pInit = (IOCInit_t *) mf;
2025 u32 high_addr, sense_high;
2026
2027 /* Verify that all entries in the IOC INIT match
2028 * existing setup (and in LE format).
2029 */
2030 if (sizeof(dma_addr_t) == sizeof(u64)) {
2031 high_addr = cpu_to_le32((u32)((u64)ioc->req_frames_dma >> 32));
2032 sense_high= cpu_to_le32((u32)((u64)ioc->sense_buf_pool_dma >> 32));
2033 } else {
2034 high_addr = 0;
2035 sense_high= 0;
2036 }
2037
2038 if ((pInit->Flags != 0) || (pInit->MaxDevices != ioc->facts.MaxDevices) ||
2039 (pInit->MaxBuses != ioc->facts.MaxBuses) ||
2040 (pInit->ReplyFrameSize != cpu_to_le16(ioc->reply_sz)) ||
2041 (pInit->HostMfaHighAddr != high_addr) ||
2042 (pInit->SenseBufferHighAddr != sense_high)) {
2043 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
2044 "IOC_INIT issued with 1 or more incorrect parameters. Rejected.\n",
2045 ioc->name, __FILE__, __LINE__);
2046 rc = -EFAULT;
2047 goto done_free_mem;
2048 }
2049 }
2050 break;
2051 default:
2052 /*
2053 * MPI_FUNCTION_PORT_ENABLE
2054 * MPI_FUNCTION_TARGET_CMD_BUFFER_POST
2055 * MPI_FUNCTION_TARGET_ASSIST
2056 * MPI_FUNCTION_TARGET_STATUS_SEND
2057 * MPI_FUNCTION_TARGET_MODE_ABORT
2058 * MPI_FUNCTION_IOC_MESSAGE_UNIT_RESET
2059 * MPI_FUNCTION_IO_UNIT_RESET
2060 * MPI_FUNCTION_HANDSHAKE
2061 * MPI_FUNCTION_REPLY_FRAME_REMOVAL
2062 * MPI_FUNCTION_EVENT_NOTIFICATION
2063 * (driver handles event notification)
2064 * MPI_FUNCTION_EVENT_ACK
2065 */
2066
2067 /* What to do with these??? CHECK ME!!!
2068 MPI_FUNCTION_FC_LINK_SRVC_BUF_POST
2069 MPI_FUNCTION_FC_LINK_SRVC_RSP
2070 MPI_FUNCTION_FC_ABORT
2071 MPI_FUNCTION_LAN_SEND
2072 MPI_FUNCTION_LAN_RECEIVE
2073 MPI_FUNCTION_LAN_RESET
2074 */
2075
2076 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
2077 "Illegal request (function 0x%x) \n",
2078 ioc->name, __FILE__, __LINE__, hdr->Function);
2079 rc = -EFAULT;
2080 goto done_free_mem;
2081 }
2082
2083 /* Add the SGL ( at most one data in SGE and one data out SGE )
2084 * In the case of two SGE's - the data out (write) will always
2085 * preceede the data in (read) SGE. psgList is used to free the
2086 * allocated memory.
2087 */
2088 psge = (char *) (((int *) mf) + karg.dataSgeOffset);
2089 flagsLength = 0;
2090
2091 if (karg.dataOutSize > 0)
2092 sgSize ++;
2093
2094 if (karg.dataInSize > 0)
2095 sgSize ++;
2096
2097 if (sgSize > 0) {
2098
2099 /* Set up the dataOut memory allocation */
2100 if (karg.dataOutSize > 0) {
2101 if (karg.dataInSize > 0) {
2102 flagsLength = ( MPI_SGE_FLAGS_SIMPLE_ELEMENT |
2103 MPI_SGE_FLAGS_END_OF_BUFFER |
2104 MPI_SGE_FLAGS_DIRECTION)
2105 << MPI_SGE_FLAGS_SHIFT;
2106 } else {
2107 flagsLength = MPT_SGE_FLAGS_SSIMPLE_WRITE;
2108 }
2109 flagsLength |= karg.dataOutSize;
2110 bufOut.len = karg.dataOutSize;
2111 bufOut.kptr = pci_alloc_consistent(
2112 ioc->pcidev, bufOut.len, &dma_addr_out);
2113
2114 if (bufOut.kptr == NULL) {
2115 rc = -ENOMEM;
2116 goto done_free_mem;
2117 } else {
2118 /* Set up this SGE.
2119 * Copy to MF and to sglbuf
2120 */
2121 ioc->add_sge(psge, flagsLength, dma_addr_out);
2122 psge += ioc->SGE_size;
2123
2124 /* Copy user data to kernel space.
2125 */
2126 if (copy_from_user(bufOut.kptr,
2127 karg.dataOutBufPtr,
2128 bufOut.len)) {
2129 printk(MYIOC_s_ERR_FMT
2130 "%s@%d::mptctl_do_mpt_command - Unable "
2131 "to read user data "
2132 "struct @ %p\n",
2133 ioc->name, __FILE__, __LINE__,karg.dataOutBufPtr);
2134 rc = -EFAULT;
2135 goto done_free_mem;
2136 }
2137 }
2138 }
2139
2140 if (karg.dataInSize > 0) {
2141 flagsLength = MPT_SGE_FLAGS_SSIMPLE_READ;
2142 flagsLength |= karg.dataInSize;
2143
2144 bufIn.len = karg.dataInSize;
2145 bufIn.kptr = pci_alloc_consistent(ioc->pcidev,
2146 bufIn.len, &dma_addr_in);
2147
2148 if (bufIn.kptr == NULL) {
2149 rc = -ENOMEM;
2150 goto done_free_mem;
2151 } else {
2152 /* Set up this SGE
2153 * Copy to MF and to sglbuf
2154 */
2155 ioc->add_sge(psge, flagsLength, dma_addr_in);
2156 }
2157 }
2158 } else {
2159 /* Add a NULL SGE
2160 */
2161 ioc->add_sge(psge, flagsLength, (dma_addr_t) -1);
2162 }
2163
2164 SET_MGMT_MSG_CONTEXT(ioc->ioctl_cmds.msg_context, hdr->MsgContext);
2165 INITIALIZE_MGMT_STATUS(ioc->ioctl_cmds.status)
2166 if (hdr->Function == MPI_FUNCTION_SCSI_TASK_MGMT) {
2167
2168 mutex_lock(&ioc->taskmgmt_cmds.mutex);
2169 if (mpt_set_taskmgmt_in_progress_flag(ioc) != 0) {
2170 mutex_unlock(&ioc->taskmgmt_cmds.mutex);
2171 goto done_free_mem;
2172 }
2173
2174 DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)mf);
2175
2176 if ((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) &&
2177 (ioc->facts.MsgVersion >= MPI_VERSION_01_05))
2178 mpt_put_msg_frame_hi_pri(mptctl_id, ioc, mf);
2179 else {
2180 rc =mpt_send_handshake_request(mptctl_id, ioc,
2181 sizeof(SCSITaskMgmt_t), (u32*)mf, CAN_SLEEP);
2182 if (rc != 0) {
2183 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
2184 "send_handshake FAILED! (ioc %p, mf %p)\n",
2185 ioc->name, ioc, mf));
2186 mpt_clear_taskmgmt_in_progress_flag(ioc);
2187 rc = -ENODATA;
2188 mutex_unlock(&ioc->taskmgmt_cmds.mutex);
2189 goto done_free_mem;
2190 }
2191 }
2192
2193 } else
2194 mpt_put_msg_frame(mptctl_id, ioc, mf);
2195
2196 /* Now wait for the command to complete */
2197 timeout = (karg.timeout > 0) ? karg.timeout : MPT_IOCTL_DEFAULT_TIMEOUT;
2198retry_wait:
2199 timeleft = wait_for_completion_timeout(&ioc->ioctl_cmds.done,
2200 HZ*timeout);
2201 if (!(ioc->ioctl_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
2202 rc = -ETIME;
2203 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "%s: TIMED OUT!\n",
2204 ioc->name, __func__));
2205 if (ioc->ioctl_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) {
2206 if (function == MPI_FUNCTION_SCSI_TASK_MGMT)
2207 mutex_unlock(&ioc->taskmgmt_cmds.mutex);
2208 goto done_free_mem;
2209 }
2210 if (!timeleft) {
2211 printk(MYIOC_s_WARN_FMT
2212 "mpt cmd timeout, doorbell=0x%08x"
2213 " function=0x%x\n",
2214 ioc->name, mpt_GetIocState(ioc, 0), function);
2215 if (function == MPI_FUNCTION_SCSI_TASK_MGMT)
2216 mutex_unlock(&ioc->taskmgmt_cmds.mutex);
2217 mptctl_timeout_expired(ioc, mf);
2218 mf = NULL;
2219 } else
2220 goto retry_wait;
2221 goto done_free_mem;
2222 }
2223
2224 if (function == MPI_FUNCTION_SCSI_TASK_MGMT)
2225 mutex_unlock(&ioc->taskmgmt_cmds.mutex);
2226
2227
2228 mf = NULL;
2229
2230 /* If a valid reply frame, copy to the user.
2231 * Offset 2: reply length in U32's
2232 */
2233 if (ioc->ioctl_cmds.status & MPT_MGMT_STATUS_RF_VALID) {
2234 if (karg.maxReplyBytes < ioc->reply_sz) {
2235 sz = min(karg.maxReplyBytes,
2236 4*ioc->ioctl_cmds.reply[2]);
2237 } else {
2238 sz = min(ioc->reply_sz, 4*ioc->ioctl_cmds.reply[2]);
2239 }
2240 if (sz > 0) {
2241 if (copy_to_user(karg.replyFrameBufPtr,
2242 ioc->ioctl_cmds.reply, sz)){
2243 printk(MYIOC_s_ERR_FMT
2244 "%s@%d::mptctl_do_mpt_command - "
2245 "Unable to write out reply frame %p\n",
2246 ioc->name, __FILE__, __LINE__, karg.replyFrameBufPtr);
2247 rc = -ENODATA;
2248 goto done_free_mem;
2249 }
2250 }
2251 }
2252
2253 /* If valid sense data, copy to user.
2254 */
2255 if (ioc->ioctl_cmds.status & MPT_MGMT_STATUS_SENSE_VALID) {
2256 sz = min(karg.maxSenseBytes, MPT_SENSE_BUFFER_SIZE);
2257 if (sz > 0) {
2258 if (copy_to_user(karg.senseDataPtr,
2259 ioc->ioctl_cmds.sense, sz)) {
2260 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
2261 "Unable to write sense data to user %p\n",
2262 ioc->name, __FILE__, __LINE__,
2263 karg.senseDataPtr);
2264 rc = -ENODATA;
2265 goto done_free_mem;
2266 }
2267 }
2268 }
2269
2270 /* If the overall status is _GOOD and data in, copy data
2271 * to user.
2272 */
2273 if ((ioc->ioctl_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD) &&
2274 (karg.dataInSize > 0) && (bufIn.kptr)) {
2275
2276 if (copy_to_user(karg.dataInBufPtr,
2277 bufIn.kptr, karg.dataInSize)) {
2278 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
2279 "Unable to write data to user %p\n",
2280 ioc->name, __FILE__, __LINE__,
2281 karg.dataInBufPtr);
2282 rc = -ENODATA;
2283 }
2284 }
2285
2286done_free_mem:
2287
2288 CLEAR_MGMT_STATUS(ioc->ioctl_cmds.status)
2289 SET_MGMT_MSG_CONTEXT(ioc->ioctl_cmds.msg_context, 0);
2290
2291 /* Free the allocated memory.
2292 */
2293 if (bufOut.kptr != NULL) {
2294 pci_free_consistent(ioc->pcidev,
2295 bufOut.len, (void *) bufOut.kptr, dma_addr_out);
2296 }
2297
2298 if (bufIn.kptr != NULL) {
2299 pci_free_consistent(ioc->pcidev,
2300 bufIn.len, (void *) bufIn.kptr, dma_addr_in);
2301 }
2302
2303 /* mf is null if command issued successfully
2304 * otherwise, failure occurred after mf acquired.
2305 */
2306 if (mf)
2307 mpt_free_msg_frame(ioc, mf);
2308
2309 return rc;
2310}
2311
2312/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2313/* Prototype Routine for the HOST INFO command.
2314 *
2315 * Outputs: None.
2316 * Return: 0 if successful
2317 * -EFAULT if data unavailable
2318 * -EBUSY if previous command timeout and IOC reset is not complete.
2319 * -ENODEV if no such device/adapter
2320 * -ETIME if timer expires
2321 * -ENOMEM if memory allocation error
2322 */
2323static int
2324mptctl_hp_hostinfo(MPT_ADAPTER *ioc, unsigned long arg, unsigned int data_size)
2325{
2326 hp_host_info_t __user *uarg = (void __user *) arg;
2327 struct pci_dev *pdev;
2328 char *pbuf=NULL;
2329 dma_addr_t buf_dma;
2330 hp_host_info_t karg;
2331 CONFIGPARMS cfg;
2332 ConfigPageHeader_t hdr;
2333 int rc, cim_rev;
2334 ToolboxIstwiReadWriteRequest_t *IstwiRWRequest;
2335 MPT_FRAME_HDR *mf = NULL;
2336 unsigned long timeleft;
2337 int retval;
2338 u32 msgcontext;
2339
2340 /* Reset long to int. Should affect IA64 and SPARC only
2341 */
2342 if (data_size == sizeof(hp_host_info_t))
2343 cim_rev = 1;
2344 else if (data_size == sizeof(hp_host_info_rev0_t))
2345 cim_rev = 0; /* obsolete */
2346 else
2347 return -EFAULT;
2348
2349 if (copy_from_user(&karg, uarg, sizeof(hp_host_info_t))) {
2350 printk(KERN_ERR MYNAM "%s@%d::mptctl_hp_host_info - "
2351 "Unable to read in hp_host_info struct @ %p\n",
2352 __FILE__, __LINE__, uarg);
2353 return -EFAULT;
2354 }
2355
2356 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT ": mptctl_hp_hostinfo called.\n",
2357 ioc->name));
2358
2359 /* Fill in the data and return the structure to the calling
2360 * program
2361 */
2362 pdev = (struct pci_dev *) ioc->pcidev;
2363
2364 karg.vendor = pdev->vendor;
2365 karg.device = pdev->device;
2366 karg.subsystem_id = pdev->subsystem_device;
2367 karg.subsystem_vendor = pdev->subsystem_vendor;
2368 karg.devfn = pdev->devfn;
2369 karg.bus = pdev->bus->number;
2370
2371 /* Save the SCSI host no. if
2372 * SCSI driver loaded
2373 */
2374 if (ioc->sh != NULL)
2375 karg.host_no = ioc->sh->host_no;
2376 else
2377 karg.host_no = -1;
2378
2379 /* Reformat the fw_version into a string */
2380 snprintf(karg.fw_version, sizeof(karg.fw_version),
2381 "%.2hhu.%.2hhu.%.2hhu.%.2hhu",
2382 ioc->facts.FWVersion.Struct.Major,
2383 ioc->facts.FWVersion.Struct.Minor,
2384 ioc->facts.FWVersion.Struct.Unit,
2385 ioc->facts.FWVersion.Struct.Dev);
2386
2387 /* Issue a config request to get the device serial number
2388 */
2389 hdr.PageVersion = 0;
2390 hdr.PageLength = 0;
2391 hdr.PageNumber = 0;
2392 hdr.PageType = MPI_CONFIG_PAGETYPE_MANUFACTURING;
2393 cfg.cfghdr.hdr = &hdr;
2394 cfg.physAddr = -1;
2395 cfg.pageAddr = 0;
2396 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
2397 cfg.dir = 0; /* read */
2398 cfg.timeout = 10;
2399
2400 strncpy(karg.serial_number, " ", 24);
2401 if (mpt_config(ioc, &cfg) == 0) {
2402 if (cfg.cfghdr.hdr->PageLength > 0) {
2403 /* Issue the second config page request */
2404 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
2405
2406 pbuf = pci_alloc_consistent(ioc->pcidev, hdr.PageLength * 4, &buf_dma);
2407 if (pbuf) {
2408 cfg.physAddr = buf_dma;
2409 if (mpt_config(ioc, &cfg) == 0) {
2410 ManufacturingPage0_t *pdata = (ManufacturingPage0_t *) pbuf;
2411 if (strlen(pdata->BoardTracerNumber) > 1) {
2412 strlcpy(karg.serial_number,
2413 pdata->BoardTracerNumber, 24);
2414 }
2415 }
2416 pci_free_consistent(ioc->pcidev, hdr.PageLength * 4, pbuf, buf_dma);
2417 pbuf = NULL;
2418 }
2419 }
2420 }
2421 rc = mpt_GetIocState(ioc, 1);
2422 switch (rc) {
2423 case MPI_IOC_STATE_OPERATIONAL:
2424 karg.ioc_status = HP_STATUS_OK;
2425 break;
2426
2427 case MPI_IOC_STATE_FAULT:
2428 karg.ioc_status = HP_STATUS_FAILED;
2429 break;
2430
2431 case MPI_IOC_STATE_RESET:
2432 case MPI_IOC_STATE_READY:
2433 default:
2434 karg.ioc_status = HP_STATUS_OTHER;
2435 break;
2436 }
2437
2438 karg.base_io_addr = pci_resource_start(pdev, 0);
2439
2440 if ((ioc->bus_type == SAS) || (ioc->bus_type == FC))
2441 karg.bus_phys_width = HP_BUS_WIDTH_UNK;
2442 else
2443 karg.bus_phys_width = HP_BUS_WIDTH_16;
2444
2445 karg.hard_resets = 0;
2446 karg.soft_resets = 0;
2447 karg.timeouts = 0;
2448 if (ioc->sh != NULL) {
2449 MPT_SCSI_HOST *hd = shost_priv(ioc->sh);
2450
2451 if (hd && (cim_rev == 1)) {
2452 karg.hard_resets = ioc->hard_resets;
2453 karg.soft_resets = ioc->soft_resets;
2454 karg.timeouts = ioc->timeouts;
2455 }
2456 }
2457
2458 /*
2459 * Gather ISTWI(Industry Standard Two Wire Interface) Data
2460 */
2461 if ((mf = mpt_get_msg_frame(mptctl_id, ioc)) == NULL) {
2462 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT
2463 "%s, no msg frames!!\n", ioc->name, __func__));
2464 goto out;
2465 }
2466
2467 IstwiRWRequest = (ToolboxIstwiReadWriteRequest_t *)mf;
2468 msgcontext = IstwiRWRequest->MsgContext;
2469 memset(IstwiRWRequest,0,sizeof(ToolboxIstwiReadWriteRequest_t));
2470 IstwiRWRequest->MsgContext = msgcontext;
2471 IstwiRWRequest->Function = MPI_FUNCTION_TOOLBOX;
2472 IstwiRWRequest->Tool = MPI_TOOLBOX_ISTWI_READ_WRITE_TOOL;
2473 IstwiRWRequest->Flags = MPI_TB_ISTWI_FLAGS_READ;
2474 IstwiRWRequest->NumAddressBytes = 0x01;
2475 IstwiRWRequest->DataLength = cpu_to_le16(0x04);
2476 if (pdev->devfn & 1)
2477 IstwiRWRequest->DeviceAddr = 0xB2;
2478 else
2479 IstwiRWRequest->DeviceAddr = 0xB0;
2480
2481 pbuf = pci_alloc_consistent(ioc->pcidev, 4, &buf_dma);
2482 if (!pbuf)
2483 goto out;
2484 ioc->add_sge((char *)&IstwiRWRequest->SGL,
2485 (MPT_SGE_FLAGS_SSIMPLE_READ|4), buf_dma);
2486
2487 retval = 0;
2488 SET_MGMT_MSG_CONTEXT(ioc->ioctl_cmds.msg_context,
2489 IstwiRWRequest->MsgContext);
2490 INITIALIZE_MGMT_STATUS(ioc->ioctl_cmds.status)
2491 mpt_put_msg_frame(mptctl_id, ioc, mf);
2492
2493retry_wait:
2494 timeleft = wait_for_completion_timeout(&ioc->ioctl_cmds.done,
2495 HZ*MPT_IOCTL_DEFAULT_TIMEOUT);
2496 if (!(ioc->ioctl_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
2497 retval = -ETIME;
2498 printk(MYIOC_s_WARN_FMT "%s: failed\n", ioc->name, __func__);
2499 if (ioc->ioctl_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) {
2500 mpt_free_msg_frame(ioc, mf);
2501 goto out;
2502 }
2503 if (!timeleft) {
2504 printk(MYIOC_s_WARN_FMT
2505 "HOST INFO command timeout, doorbell=0x%08x\n",
2506 ioc->name, mpt_GetIocState(ioc, 0));
2507 mptctl_timeout_expired(ioc, mf);
2508 } else
2509 goto retry_wait;
2510 goto out;
2511 }
2512
2513 /*
2514 *ISTWI Data Definition
2515 * pbuf[0] = FW_VERSION = 0x4
2516 * pbuf[1] = Bay Count = 6 or 4 or 2, depending on
2517 * the config, you should be seeing one out of these three values
2518 * pbuf[2] = Drive Installed Map = bit pattern depend on which
2519 * bays have drives in them
2520 * pbuf[3] = Checksum (0x100 = (byte0 + byte2 + byte3)
2521 */
2522 if (ioc->ioctl_cmds.status & MPT_MGMT_STATUS_RF_VALID)
2523 karg.rsvd = *(u32 *)pbuf;
2524
2525 out:
2526 CLEAR_MGMT_STATUS(ioc->ioctl_cmds.status)
2527 SET_MGMT_MSG_CONTEXT(ioc->ioctl_cmds.msg_context, 0);
2528
2529 if (pbuf)
2530 pci_free_consistent(ioc->pcidev, 4, pbuf, buf_dma);
2531
2532 /* Copy the data from kernel memory to user memory
2533 */
2534 if (copy_to_user((char __user *)arg, &karg, sizeof(hp_host_info_t))) {
2535 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_hpgethostinfo - "
2536 "Unable to write out hp_host_info @ %p\n",
2537 ioc->name, __FILE__, __LINE__, uarg);
2538 return -EFAULT;
2539 }
2540
2541 return 0;
2542
2543}
2544
2545/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2546/* Prototype Routine for the TARGET INFO command.
2547 *
2548 * Outputs: None.
2549 * Return: 0 if successful
2550 * -EFAULT if data unavailable
2551 * -EBUSY if previous command timeout and IOC reset is not complete.
2552 * -ENODEV if no such device/adapter
2553 * -ETIME if timer expires
2554 * -ENOMEM if memory allocation error
2555 */
2556static int
2557mptctl_hp_targetinfo(MPT_ADAPTER *ioc, unsigned long arg)
2558{
2559 hp_target_info_t __user *uarg = (void __user *) arg;
2560 SCSIDevicePage0_t *pg0_alloc;
2561 SCSIDevicePage3_t *pg3_alloc;
2562 MPT_SCSI_HOST *hd = NULL;
2563 hp_target_info_t karg;
2564 int data_sz;
2565 dma_addr_t page_dma;
2566 CONFIGPARMS cfg;
2567 ConfigPageHeader_t hdr;
2568 int tmp, np, rc = 0;
2569
2570 if (copy_from_user(&karg, uarg, sizeof(hp_target_info_t))) {
2571 printk(KERN_ERR MYNAM "%s@%d::mptctl_hp_targetinfo - "
2572 "Unable to read in hp_host_targetinfo struct @ %p\n",
2573 __FILE__, __LINE__, uarg);
2574 return -EFAULT;
2575 }
2576
2577 if (karg.hdr.id >= MPT_MAX_FC_DEVICES)
2578 return -EINVAL;
2579 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_hp_targetinfo called.\n",
2580 ioc->name));
2581
2582 /* There is nothing to do for FCP parts.
2583 */
2584 if ((ioc->bus_type == SAS) || (ioc->bus_type == FC))
2585 return 0;
2586
2587 if ((ioc->spi_data.sdp0length == 0) || (ioc->sh == NULL))
2588 return 0;
2589
2590 if (ioc->sh->host_no != karg.hdr.host)
2591 return -ENODEV;
2592
2593 /* Get the data transfer speeds
2594 */
2595 data_sz = ioc->spi_data.sdp0length * 4;
2596 pg0_alloc = (SCSIDevicePage0_t *) pci_alloc_consistent(ioc->pcidev, data_sz, &page_dma);
2597 if (pg0_alloc) {
2598 hdr.PageVersion = ioc->spi_data.sdp0version;
2599 hdr.PageLength = data_sz;
2600 hdr.PageNumber = 0;
2601 hdr.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE;
2602
2603 cfg.cfghdr.hdr = &hdr;
2604 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
2605 cfg.dir = 0;
2606 cfg.timeout = 0;
2607 cfg.physAddr = page_dma;
2608
2609 cfg.pageAddr = (karg.hdr.channel << 8) | karg.hdr.id;
2610
2611 if ((rc = mpt_config(ioc, &cfg)) == 0) {
2612 np = le32_to_cpu(pg0_alloc->NegotiatedParameters);
2613 karg.negotiated_width = np & MPI_SCSIDEVPAGE0_NP_WIDE ?
2614 HP_BUS_WIDTH_16 : HP_BUS_WIDTH_8;
2615
2616 if (np & MPI_SCSIDEVPAGE0_NP_NEG_SYNC_OFFSET_MASK) {
2617 tmp = (np & MPI_SCSIDEVPAGE0_NP_NEG_SYNC_PERIOD_MASK) >> 8;
2618 if (tmp < 0x09)
2619 karg.negotiated_speed = HP_DEV_SPEED_ULTRA320;
2620 else if (tmp <= 0x09)
2621 karg.negotiated_speed = HP_DEV_SPEED_ULTRA160;
2622 else if (tmp <= 0x0A)
2623 karg.negotiated_speed = HP_DEV_SPEED_ULTRA2;
2624 else if (tmp <= 0x0C)
2625 karg.negotiated_speed = HP_DEV_SPEED_ULTRA;
2626 else if (tmp <= 0x25)
2627 karg.negotiated_speed = HP_DEV_SPEED_FAST;
2628 else
2629 karg.negotiated_speed = HP_DEV_SPEED_ASYNC;
2630 } else
2631 karg.negotiated_speed = HP_DEV_SPEED_ASYNC;
2632 }
2633
2634 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) pg0_alloc, page_dma);
2635 }
2636
2637 /* Set defaults
2638 */
2639 karg.message_rejects = -1;
2640 karg.phase_errors = -1;
2641 karg.parity_errors = -1;
2642 karg.select_timeouts = -1;
2643
2644 /* Get the target error parameters
2645 */
2646 hdr.PageVersion = 0;
2647 hdr.PageLength = 0;
2648 hdr.PageNumber = 3;
2649 hdr.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE;
2650
2651 cfg.cfghdr.hdr = &hdr;
2652 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
2653 cfg.dir = 0;
2654 cfg.timeout = 0;
2655 cfg.physAddr = -1;
2656 if ((mpt_config(ioc, &cfg) == 0) && (cfg.cfghdr.hdr->PageLength > 0)) {
2657 /* Issue the second config page request */
2658 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
2659 data_sz = (int) cfg.cfghdr.hdr->PageLength * 4;
2660 pg3_alloc = (SCSIDevicePage3_t *) pci_alloc_consistent(
2661 ioc->pcidev, data_sz, &page_dma);
2662 if (pg3_alloc) {
2663 cfg.physAddr = page_dma;
2664 cfg.pageAddr = (karg.hdr.channel << 8) | karg.hdr.id;
2665 if ((rc = mpt_config(ioc, &cfg)) == 0) {
2666 karg.message_rejects = (u32) le16_to_cpu(pg3_alloc->MsgRejectCount);
2667 karg.phase_errors = (u32) le16_to_cpu(pg3_alloc->PhaseErrorCount);
2668 karg.parity_errors = (u32) le16_to_cpu(pg3_alloc->ParityErrorCount);
2669 }
2670 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) pg3_alloc, page_dma);
2671 }
2672 }
2673 hd = shost_priv(ioc->sh);
2674 if (hd != NULL)
2675 karg.select_timeouts = hd->sel_timeout[karg.hdr.id];
2676
2677 /* Copy the data from kernel memory to user memory
2678 */
2679 if (copy_to_user((char __user *)arg, &karg, sizeof(hp_target_info_t))) {
2680 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_hp_target_info - "
2681 "Unable to write out mpt_ioctl_targetinfo struct @ %p\n",
2682 ioc->name, __FILE__, __LINE__, uarg);
2683 return -EFAULT;
2684 }
2685
2686 return 0;
2687}
2688
2689/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2690
2691static const struct file_operations mptctl_fops = {
2692 .owner = THIS_MODULE,
2693 .llseek = no_llseek,
2694 .fasync = mptctl_fasync,
2695 .unlocked_ioctl = mptctl_ioctl,
2696#ifdef CONFIG_COMPAT
2697 .compat_ioctl = compat_mpctl_ioctl,
2698#endif
2699};
2700
2701static struct miscdevice mptctl_miscdev = {
2702 MPT_MINOR,
2703 MYNAM,
2704 &mptctl_fops
2705};
2706
2707/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2708
2709#ifdef CONFIG_COMPAT
2710
2711static int
2712compat_mptfwxfer_ioctl(struct file *filp, unsigned int cmd,
2713 unsigned long arg)
2714{
2715 struct mpt_fw_xfer32 kfw32;
2716 struct mpt_fw_xfer kfw;
2717 MPT_ADAPTER *iocp = NULL;
2718 int iocnum, iocnumX;
2719 int nonblock = (filp->f_flags & O_NONBLOCK);
2720 int ret;
2721
2722
2723 if (copy_from_user(&kfw32, (char __user *)arg, sizeof(kfw32)))
2724 return -EFAULT;
2725
2726 /* Verify intended MPT adapter */
2727 iocnumX = kfw32.iocnum & 0xFF;
2728 if (((iocnum = mpt_verify_adapter(iocnumX, &iocp)) < 0) ||
2729 (iocp == NULL)) {
2730 printk(KERN_DEBUG MYNAM "::compat_mptfwxfer_ioctl @%d - ioc%d not found!\n",
2731 __LINE__, iocnumX);
2732 return -ENODEV;
2733 }
2734
2735 if ((ret = mptctl_syscall_down(iocp, nonblock)) != 0)
2736 return ret;
2737
2738 dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT "compat_mptfwxfer_ioctl() called\n",
2739 iocp->name));
2740 kfw.iocnum = iocnum;
2741 kfw.fwlen = kfw32.fwlen;
2742 kfw.bufp = compat_ptr(kfw32.bufp);
2743
2744 ret = mptctl_do_fw_download(iocp, kfw.bufp, kfw.fwlen);
2745
2746 mutex_unlock(&iocp->ioctl_cmds.mutex);
2747
2748 return ret;
2749}
2750
2751static int
2752compat_mpt_command(struct file *filp, unsigned int cmd,
2753 unsigned long arg)
2754{
2755 struct mpt_ioctl_command32 karg32;
2756 struct mpt_ioctl_command32 __user *uarg = (struct mpt_ioctl_command32 __user *) arg;
2757 struct mpt_ioctl_command karg;
2758 MPT_ADAPTER *iocp = NULL;
2759 int iocnum, iocnumX;
2760 int nonblock = (filp->f_flags & O_NONBLOCK);
2761 int ret;
2762
2763 if (copy_from_user(&karg32, (char __user *)arg, sizeof(karg32)))
2764 return -EFAULT;
2765
2766 /* Verify intended MPT adapter */
2767 iocnumX = karg32.hdr.iocnum & 0xFF;
2768 if (((iocnum = mpt_verify_adapter(iocnumX, &iocp)) < 0) ||
2769 (iocp == NULL)) {
2770 printk(KERN_DEBUG MYNAM "::compat_mpt_command @%d - ioc%d not found!\n",
2771 __LINE__, iocnumX);
2772 return -ENODEV;
2773 }
2774
2775 if ((ret = mptctl_syscall_down(iocp, nonblock)) != 0)
2776 return ret;
2777
2778 dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT "compat_mpt_command() called\n",
2779 iocp->name));
2780 /* Copy data to karg */
2781 karg.hdr.iocnum = karg32.hdr.iocnum;
2782 karg.hdr.port = karg32.hdr.port;
2783 karg.timeout = karg32.timeout;
2784 karg.maxReplyBytes = karg32.maxReplyBytes;
2785
2786 karg.dataInSize = karg32.dataInSize;
2787 karg.dataOutSize = karg32.dataOutSize;
2788 karg.maxSenseBytes = karg32.maxSenseBytes;
2789 karg.dataSgeOffset = karg32.dataSgeOffset;
2790
2791 karg.replyFrameBufPtr = (char __user *)(unsigned long)karg32.replyFrameBufPtr;
2792 karg.dataInBufPtr = (char __user *)(unsigned long)karg32.dataInBufPtr;
2793 karg.dataOutBufPtr = (char __user *)(unsigned long)karg32.dataOutBufPtr;
2794 karg.senseDataPtr = (char __user *)(unsigned long)karg32.senseDataPtr;
2795
2796 /* Pass new structure to do_mpt_command
2797 */
2798 ret = mptctl_do_mpt_command (iocp, karg, &uarg->MF);
2799
2800 mutex_unlock(&iocp->ioctl_cmds.mutex);
2801
2802 return ret;
2803}
2804
2805static long compat_mpctl_ioctl(struct file *f, unsigned int cmd, unsigned long arg)
2806{
2807 long ret;
2808 mutex_lock(&mpctl_mutex);
2809 switch (cmd) {
2810 case MPTIOCINFO:
2811 case MPTIOCINFO1:
2812 case MPTIOCINFO2:
2813 case MPTTARGETINFO:
2814 case MPTEVENTQUERY:
2815 case MPTEVENTENABLE:
2816 case MPTEVENTREPORT:
2817 case MPTHARDRESET:
2818 case HP_GETHOSTINFO:
2819 case HP_GETTARGETINFO:
2820 case MPTTEST:
2821 ret = __mptctl_ioctl(f, cmd, arg);
2822 break;
2823 case MPTCOMMAND32:
2824 ret = compat_mpt_command(f, cmd, arg);
2825 break;
2826 case MPTFWDOWNLOAD32:
2827 ret = compat_mptfwxfer_ioctl(f, cmd, arg);
2828 break;
2829 default:
2830 ret = -ENOIOCTLCMD;
2831 break;
2832 }
2833 mutex_unlock(&mpctl_mutex);
2834 return ret;
2835}
2836
2837#endif
2838
2839
2840/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2841/*
2842 * mptctl_probe - Installs ioctl devices per bus.
2843 * @pdev: Pointer to pci_dev structure
2844 *
2845 * Returns 0 for success, non-zero for failure.
2846 *
2847 */
2848
2849static int
2850mptctl_probe(struct pci_dev *pdev, const struct pci_device_id *id)
2851{
2852 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
2853
2854 mutex_init(&ioc->ioctl_cmds.mutex);
2855 init_completion(&ioc->ioctl_cmds.done);
2856 return 0;
2857}
2858
2859/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2860/*
2861 * mptctl_remove - Removed ioctl devices
2862 * @pdev: Pointer to pci_dev structure
2863 *
2864 *
2865 */
2866static void
2867mptctl_remove(struct pci_dev *pdev)
2868{
2869}
2870
2871static struct mpt_pci_driver mptctl_driver = {
2872 .probe = mptctl_probe,
2873 .remove = mptctl_remove,
2874};
2875
2876/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2877static int __init mptctl_init(void)
2878{
2879 int err;
2880 int where = 1;
2881
2882 show_mptmod_ver(my_NAME, my_VERSION);
2883
2884 mpt_device_driver_register(&mptctl_driver, MPTCTL_DRIVER);
2885
2886 /* Register this device */
2887 err = misc_register(&mptctl_miscdev);
2888 if (err < 0) {
2889 printk(KERN_ERR MYNAM ": Can't register misc device [minor=%d].\n", MPT_MINOR);
2890 goto out_fail;
2891 }
2892 printk(KERN_INFO MYNAM ": Registered with Fusion MPT base driver\n");
2893 printk(KERN_INFO MYNAM ": /dev/%s @ (major,minor=%d,%d)\n",
2894 mptctl_miscdev.name, MISC_MAJOR, mptctl_miscdev.minor);
2895
2896 /*
2897 * Install our handler
2898 */
2899 ++where;
2900 mptctl_id = mpt_register(mptctl_reply, MPTCTL_DRIVER,
2901 "mptctl_reply");
2902 if (!mptctl_id || mptctl_id >= MPT_MAX_PROTOCOL_DRIVERS) {
2903 printk(KERN_ERR MYNAM ": ERROR: Failed to register with Fusion MPT base driver\n");
2904 misc_deregister(&mptctl_miscdev);
2905 err = -EBUSY;
2906 goto out_fail;
2907 }
2908
2909 mptctl_taskmgmt_id = mpt_register(mptctl_taskmgmt_reply, MPTCTL_DRIVER,
2910 "mptctl_taskmgmt_reply");
2911 if (!mptctl_taskmgmt_id || mptctl_taskmgmt_id >= MPT_MAX_PROTOCOL_DRIVERS) {
2912 printk(KERN_ERR MYNAM ": ERROR: Failed to register with Fusion MPT base driver\n");
2913 mpt_deregister(mptctl_id);
2914 misc_deregister(&mptctl_miscdev);
2915 err = -EBUSY;
2916 goto out_fail;
2917 }
2918
2919 mpt_reset_register(mptctl_id, mptctl_ioc_reset);
2920 mpt_event_register(mptctl_id, mptctl_event_process);
2921
2922 return 0;
2923
2924out_fail:
2925
2926 mpt_device_driver_deregister(MPTCTL_DRIVER);
2927
2928 return err;
2929}
2930
2931/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2932static void mptctl_exit(void)
2933{
2934 misc_deregister(&mptctl_miscdev);
2935 printk(KERN_INFO MYNAM ": Deregistered /dev/%s @ (major,minor=%d,%d)\n",
2936 mptctl_miscdev.name, MISC_MAJOR, mptctl_miscdev.minor);
2937
2938 /* De-register event handler from base module */
2939 mpt_event_deregister(mptctl_id);
2940
2941 /* De-register reset handler from base module */
2942 mpt_reset_deregister(mptctl_id);
2943
2944 /* De-register callback handler from base module */
2945 mpt_deregister(mptctl_taskmgmt_id);
2946 mpt_deregister(mptctl_id);
2947
2948 mpt_device_driver_deregister(MPTCTL_DRIVER);
2949
2950}
2951
2952/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2953
2954module_init(mptctl_init);
2955module_exit(mptctl_exit);