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
79 MODULE_AUTHOR(MODULEAUTHOR);
80 MODULE_DESCRIPTION(my_NAME);
81 MODULE_LICENSE("GPL");
82 MODULE_VERSION(my_VERSION);
83
84 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
85
86 static DEFINE_MUTEX(mpctl_mutex);
87 static u8 mptctl_id = MPT_MAX_PROTOCOL_DRIVERS;
88 static u8 mptctl_taskmgmt_id = MPT_MAX_PROTOCOL_DRIVERS;
89
90 static DECLARE_WAIT_QUEUE_HEAD ( mptctl_wait );
91
92 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
93
94 struct buflist {
95 u8 *kptr;
96 int len;
97 };
98
99 /*
100 * Function prototypes. Called from OS entry point mptctl_ioctl.
101 * arg contents specific to function.
102 */
103 static int mptctl_fw_download(unsigned long arg);
104 static int mptctl_getiocinfo(unsigned long arg, unsigned int cmd);
105 static int mptctl_gettargetinfo(unsigned long arg);
106 static int mptctl_readtest(unsigned long arg);
107 static int mptctl_mpt_command(unsigned long arg);
108 static int mptctl_eventquery(unsigned long arg);
109 static int mptctl_eventenable(unsigned long arg);
110 static int mptctl_eventreport(unsigned long arg);
111 static int mptctl_replace_fw(unsigned long arg);
112
113 static int mptctl_do_reset(unsigned long arg);
114 static int mptctl_hp_hostinfo(unsigned long arg, unsigned int cmd);
115 static int mptctl_hp_targetinfo(unsigned long arg);
116
117 static int mptctl_probe(struct pci_dev *, const struct pci_device_id *);
118 static void mptctl_remove(struct pci_dev *);
119
120 #ifdef CONFIG_COMPAT
121 static long compat_mpctl_ioctl(struct file *f, unsigned cmd, unsigned long arg);
122 #endif
123 /*
124 * Private function calls.
125 */
126 static int mptctl_do_mpt_command(struct mpt_ioctl_command karg, void __user *mfPtr);
127 static int mptctl_do_fw_download(int ioc, char __user *ufwbuf, size_t fwlen);
128 static MptSge_t *kbuf_alloc_2_sgl(int bytes, u32 dir, int sge_offset, int *frags,
129 struct buflist **blp, dma_addr_t *sglbuf_dma, MPT_ADAPTER *ioc);
130 static void kfree_sgl(MptSge_t *sgl, dma_addr_t sgl_dma,
131 struct buflist *buflist, MPT_ADAPTER *ioc);
132
133 /*
134 * Reset Handler cleanup function
135 */
136 static int mptctl_ioc_reset(MPT_ADAPTER *ioc, int reset_phase);
137
138 /*
139 * Event Handler function
140 */
141 static int mptctl_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply);
142 static struct fasync_struct *async_queue=NULL;
143
144 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
145 /*
146 * Scatter gather list (SGL) sizes and limits...
147 */
148 //#define MAX_SCSI_FRAGS 9
149 #define MAX_FRAGS_SPILL1 9
150 #define MAX_FRAGS_SPILL2 15
151 #define FRAGS_PER_BUCKET (MAX_FRAGS_SPILL2 + 1)
152
153 //#define MAX_CHAIN_FRAGS 64
154 //#define MAX_CHAIN_FRAGS (15+15+15+16)
155 #define MAX_CHAIN_FRAGS (4 * MAX_FRAGS_SPILL2 + 1)
156
157 // Define max sg LIST bytes ( == (#frags + #chains) * 8 bytes each)
158 // Works out to: 592d bytes! (9+1)*8 + 4*(15+1)*8
159 // ^----------------- 80 + 512
160 #define MAX_SGL_BYTES ((MAX_FRAGS_SPILL1 + 1 + (4 * FRAGS_PER_BUCKET)) * 8)
161
162 /* linux only seems to ever give 128kB MAX contiguous (GFP_USER) mem bytes */
163 #define MAX_KMALLOC_SZ (128*1024)
164
165 #define MPT_IOCTL_DEFAULT_TIMEOUT 10 /* Default timeout value (seconds) */
166
167 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
168 /**
169 * mptctl_syscall_down - Down the MPT adapter syscall semaphore.
170 * @ioc: Pointer to MPT adapter
171 * @nonblock: boolean, non-zero if O_NONBLOCK is set
172 *
173 * All of the ioctl commands can potentially sleep, which is illegal
174 * with a spinlock held, thus we perform mutual exclusion here.
175 *
176 * Returns negative errno on error, or zero for success.
177 */
178 static inline int
mptctl_syscall_down(MPT_ADAPTER * ioc,int nonblock)179 mptctl_syscall_down(MPT_ADAPTER *ioc, int nonblock)
180 {
181 int rc = 0;
182
183 if (nonblock) {
184 if (!mutex_trylock(&ioc->ioctl_cmds.mutex))
185 rc = -EAGAIN;
186 } else {
187 if (mutex_lock_interruptible(&ioc->ioctl_cmds.mutex))
188 rc = -ERESTARTSYS;
189 }
190 return rc;
191 }
192
193 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
194 /*
195 * This is the callback for any message we have posted. The message itself
196 * will be returned to the message pool when we return from the IRQ
197 *
198 * This runs in irq context so be short and sweet.
199 */
200 static int
mptctl_reply(MPT_ADAPTER * ioc,MPT_FRAME_HDR * req,MPT_FRAME_HDR * reply)201 mptctl_reply(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req, MPT_FRAME_HDR *reply)
202 {
203 char *sense_data;
204 int req_index;
205 int sz;
206
207 if (!req)
208 return 0;
209
210 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "completing mpi function "
211 "(0x%02X), req=%p, reply=%p\n", ioc->name, req->u.hdr.Function,
212 req, reply));
213
214 /*
215 * Handling continuation of the same reply. Processing the first
216 * reply, and eating the other replys that come later.
217 */
218 if (ioc->ioctl_cmds.msg_context != req->u.hdr.MsgContext)
219 goto out_continuation;
220
221 ioc->ioctl_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD;
222
223 if (!reply)
224 goto out;
225
226 ioc->ioctl_cmds.status |= MPT_MGMT_STATUS_RF_VALID;
227 sz = min(ioc->reply_sz, 4*reply->u.reply.MsgLength);
228 memcpy(ioc->ioctl_cmds.reply, reply, sz);
229
230 if (reply->u.reply.IOCStatus || reply->u.reply.IOCLogInfo)
231 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT
232 "iocstatus (0x%04X), loginfo (0x%08X)\n", ioc->name,
233 le16_to_cpu(reply->u.reply.IOCStatus),
234 le32_to_cpu(reply->u.reply.IOCLogInfo)));
235
236 if ((req->u.hdr.Function == MPI_FUNCTION_SCSI_IO_REQUEST) ||
237 (req->u.hdr.Function ==
238 MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) {
239
240 if (reply->u.sreply.SCSIStatus || reply->u.sreply.SCSIState)
241 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT
242 "scsi_status (0x%02x), scsi_state (0x%02x), "
243 "tag = (0x%04x), transfer_count (0x%08x)\n", ioc->name,
244 reply->u.sreply.SCSIStatus,
245 reply->u.sreply.SCSIState,
246 le16_to_cpu(reply->u.sreply.TaskTag),
247 le32_to_cpu(reply->u.sreply.TransferCount)));
248
249 if (reply->u.sreply.SCSIState &
250 MPI_SCSI_STATE_AUTOSENSE_VALID) {
251 sz = req->u.scsireq.SenseBufferLength;
252 req_index =
253 le16_to_cpu(req->u.frame.hwhdr.msgctxu.fld.req_idx);
254 sense_data = ((u8 *)ioc->sense_buf_pool +
255 (req_index * MPT_SENSE_BUFFER_ALLOC));
256 memcpy(ioc->ioctl_cmds.sense, sense_data, sz);
257 ioc->ioctl_cmds.status |= MPT_MGMT_STATUS_SENSE_VALID;
258 }
259 }
260
261 out:
262 /* We are done, issue wake up
263 */
264 if (ioc->ioctl_cmds.status & MPT_MGMT_STATUS_PENDING) {
265 if (req->u.hdr.Function == MPI_FUNCTION_SCSI_TASK_MGMT) {
266 mpt_clear_taskmgmt_in_progress_flag(ioc);
267 ioc->ioctl_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
268 complete(&ioc->ioctl_cmds.done);
269 if (ioc->bus_type == SAS)
270 ioc->schedule_target_reset(ioc);
271 } else {
272 ioc->ioctl_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
273 complete(&ioc->ioctl_cmds.done);
274 }
275 }
276
277 out_continuation:
278 if (reply && (reply->u.reply.MsgFlags &
279 MPI_MSGFLAGS_CONTINUATION_REPLY))
280 return 0;
281 return 1;
282 }
283
284
285 static int
mptctl_taskmgmt_reply(MPT_ADAPTER * ioc,MPT_FRAME_HDR * mf,MPT_FRAME_HDR * mr)286 mptctl_taskmgmt_reply(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
287 {
288 if (!mf)
289 return 0;
290
291 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
292 "TaskMgmt completed (mf=%p, mr=%p)\n",
293 ioc->name, mf, mr));
294
295 ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD;
296
297 if (!mr)
298 goto out;
299
300 ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_RF_VALID;
301 memcpy(ioc->taskmgmt_cmds.reply, mr,
302 min(MPT_DEFAULT_FRAME_SIZE, 4 * mr->u.reply.MsgLength));
303 out:
304 if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_PENDING) {
305 mpt_clear_taskmgmt_in_progress_flag(ioc);
306 ioc->taskmgmt_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
307 complete(&ioc->taskmgmt_cmds.done);
308 if (ioc->bus_type == SAS)
309 ioc->schedule_target_reset(ioc);
310 return 1;
311 }
312 return 0;
313 }
314
315 static int
mptctl_do_taskmgmt(MPT_ADAPTER * ioc,u8 tm_type,u8 bus_id,u8 target_id)316 mptctl_do_taskmgmt(MPT_ADAPTER *ioc, u8 tm_type, u8 bus_id, u8 target_id)
317 {
318 MPT_FRAME_HDR *mf;
319 SCSITaskMgmt_t *pScsiTm;
320 SCSITaskMgmtReply_t *pScsiTmReply;
321 int ii;
322 int retval;
323 unsigned long timeout;
324 unsigned long time_count;
325 u16 iocstatus;
326
327
328 mutex_lock(&ioc->taskmgmt_cmds.mutex);
329 if (mpt_set_taskmgmt_in_progress_flag(ioc) != 0) {
330 mutex_unlock(&ioc->taskmgmt_cmds.mutex);
331 return -EPERM;
332 }
333
334 retval = 0;
335
336 mf = mpt_get_msg_frame(mptctl_taskmgmt_id, ioc);
337 if (mf == NULL) {
338 dtmprintk(ioc,
339 printk(MYIOC_s_WARN_FMT "TaskMgmt, no msg frames!!\n",
340 ioc->name));
341 mpt_clear_taskmgmt_in_progress_flag(ioc);
342 retval = -ENOMEM;
343 goto tm_done;
344 }
345
346 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt request (mf=%p)\n",
347 ioc->name, mf));
348
349 pScsiTm = (SCSITaskMgmt_t *) mf;
350 memset(pScsiTm, 0, sizeof(SCSITaskMgmt_t));
351 pScsiTm->Function = MPI_FUNCTION_SCSI_TASK_MGMT;
352 pScsiTm->TaskType = tm_type;
353 if ((tm_type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS) &&
354 (ioc->bus_type == FC))
355 pScsiTm->MsgFlags =
356 MPI_SCSITASKMGMT_MSGFLAGS_LIPRESET_RESET_OPTION;
357 pScsiTm->TargetID = target_id;
358 pScsiTm->Bus = bus_id;
359 pScsiTm->ChainOffset = 0;
360 pScsiTm->Reserved = 0;
361 pScsiTm->Reserved1 = 0;
362 pScsiTm->TaskMsgContext = 0;
363 for (ii= 0; ii < 8; ii++)
364 pScsiTm->LUN[ii] = 0;
365 for (ii=0; ii < 7; ii++)
366 pScsiTm->Reserved2[ii] = 0;
367
368 switch (ioc->bus_type) {
369 case FC:
370 timeout = 40;
371 break;
372 case SAS:
373 timeout = 30;
374 break;
375 case SPI:
376 default:
377 timeout = 10;
378 break;
379 }
380
381 dtmprintk(ioc,
382 printk(MYIOC_s_DEBUG_FMT "TaskMgmt type=%d timeout=%ld\n",
383 ioc->name, tm_type, timeout));
384
385 INITIALIZE_MGMT_STATUS(ioc->taskmgmt_cmds.status)
386 time_count = jiffies;
387 if ((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) &&
388 (ioc->facts.MsgVersion >= MPI_VERSION_01_05))
389 mpt_put_msg_frame_hi_pri(mptctl_taskmgmt_id, ioc, mf);
390 else {
391 retval = mpt_send_handshake_request(mptctl_taskmgmt_id, ioc,
392 sizeof(SCSITaskMgmt_t), (u32 *)pScsiTm, CAN_SLEEP);
393 if (retval != 0) {
394 dfailprintk(ioc,
395 printk(MYIOC_s_ERR_FMT
396 "TaskMgmt send_handshake FAILED!"
397 " (ioc %p, mf %p, rc=%d) \n", ioc->name,
398 ioc, mf, retval));
399 mpt_free_msg_frame(ioc, mf);
400 mpt_clear_taskmgmt_in_progress_flag(ioc);
401 goto tm_done;
402 }
403 }
404
405 /* Now wait for the command to complete */
406 ii = wait_for_completion_timeout(&ioc->taskmgmt_cmds.done, timeout*HZ);
407
408 if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
409 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
410 "TaskMgmt failed\n", ioc->name));
411 mpt_free_msg_frame(ioc, mf);
412 mpt_clear_taskmgmt_in_progress_flag(ioc);
413 if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET)
414 retval = 0;
415 else
416 retval = -1; /* return failure */
417 goto tm_done;
418 }
419
420 if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_RF_VALID)) {
421 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
422 "TaskMgmt failed\n", ioc->name));
423 retval = -1; /* return failure */
424 goto tm_done;
425 }
426
427 pScsiTmReply = (SCSITaskMgmtReply_t *) ioc->taskmgmt_cmds.reply;
428 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
429 "TaskMgmt fw_channel = %d, fw_id = %d, task_type=0x%02X, "
430 "iocstatus=0x%04X\n\tloginfo=0x%08X, response_code=0x%02X, "
431 "term_cmnds=%d\n", ioc->name, pScsiTmReply->Bus,
432 pScsiTmReply->TargetID, tm_type,
433 le16_to_cpu(pScsiTmReply->IOCStatus),
434 le32_to_cpu(pScsiTmReply->IOCLogInfo),
435 pScsiTmReply->ResponseCode,
436 le32_to_cpu(pScsiTmReply->TerminationCount)));
437
438 iocstatus = le16_to_cpu(pScsiTmReply->IOCStatus) & MPI_IOCSTATUS_MASK;
439
440 if (iocstatus == MPI_IOCSTATUS_SCSI_TASK_TERMINATED ||
441 iocstatus == MPI_IOCSTATUS_SCSI_IOC_TERMINATED ||
442 iocstatus == MPI_IOCSTATUS_SUCCESS)
443 retval = 0;
444 else {
445 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
446 "TaskMgmt failed\n", ioc->name));
447 retval = -1; /* return failure */
448 }
449
450 tm_done:
451 mutex_unlock(&ioc->taskmgmt_cmds.mutex);
452 CLEAR_MGMT_STATUS(ioc->taskmgmt_cmds.status)
453 return retval;
454 }
455
456 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
457 /* mptctl_timeout_expired
458 *
459 * Expecting an interrupt, however timed out.
460 *
461 */
462 static void
mptctl_timeout_expired(MPT_ADAPTER * ioc,MPT_FRAME_HDR * mf)463 mptctl_timeout_expired(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf)
464 {
465 unsigned long flags;
466 int ret_val = -1;
467 SCSIIORequest_t *scsi_req = (SCSIIORequest_t *) mf;
468 u8 function = mf->u.hdr.Function;
469
470 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT ": %s\n",
471 ioc->name, __func__));
472
473 if (mpt_fwfault_debug)
474 mpt_halt_firmware(ioc);
475
476 spin_lock_irqsave(&ioc->taskmgmt_lock, flags);
477 if (ioc->ioc_reset_in_progress) {
478 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
479 CLEAR_MGMT_PENDING_STATUS(ioc->ioctl_cmds.status)
480 mpt_free_msg_frame(ioc, mf);
481 return;
482 }
483 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
484
485
486 CLEAR_MGMT_PENDING_STATUS(ioc->ioctl_cmds.status)
487
488 if (ioc->bus_type == SAS) {
489 if (function == MPI_FUNCTION_SCSI_IO_REQUEST)
490 ret_val = mptctl_do_taskmgmt(ioc,
491 MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET,
492 scsi_req->Bus, scsi_req->TargetID);
493 else if (function == MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)
494 ret_val = mptctl_do_taskmgmt(ioc,
495 MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
496 scsi_req->Bus, 0);
497 if (!ret_val)
498 return;
499 } else {
500 if ((function == MPI_FUNCTION_SCSI_IO_REQUEST) ||
501 (function == MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH))
502 ret_val = mptctl_do_taskmgmt(ioc,
503 MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
504 scsi_req->Bus, 0);
505 if (!ret_val)
506 return;
507 }
508
509 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Calling Reset! \n",
510 ioc->name));
511 mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
512 mpt_free_msg_frame(ioc, mf);
513 }
514
515
516 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
517 /* mptctl_ioc_reset
518 *
519 * Clean-up functionality. Used only if there has been a
520 * reload of the FW due.
521 *
522 */
523 static int
mptctl_ioc_reset(MPT_ADAPTER * ioc,int reset_phase)524 mptctl_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
525 {
526 switch(reset_phase) {
527 case MPT_IOC_SETUP_RESET:
528 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
529 "%s: MPT_IOC_SETUP_RESET\n", ioc->name, __func__));
530 break;
531 case MPT_IOC_PRE_RESET:
532 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
533 "%s: MPT_IOC_PRE_RESET\n", ioc->name, __func__));
534 break;
535 case MPT_IOC_POST_RESET:
536 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
537 "%s: MPT_IOC_POST_RESET\n", ioc->name, __func__));
538 if (ioc->ioctl_cmds.status & MPT_MGMT_STATUS_PENDING) {
539 ioc->ioctl_cmds.status |= MPT_MGMT_STATUS_DID_IOCRESET;
540 complete(&ioc->ioctl_cmds.done);
541 }
542 break;
543 default:
544 break;
545 }
546
547 return 1;
548 }
549
550 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
551 /* ASYNC Event Notification Support */
552 static int
mptctl_event_process(MPT_ADAPTER * ioc,EventNotificationReply_t * pEvReply)553 mptctl_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
554 {
555 u8 event;
556
557 event = le32_to_cpu(pEvReply->Event) & 0xFF;
558
559 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s() called\n",
560 ioc->name, __func__));
561 if(async_queue == NULL)
562 return 1;
563
564 /* Raise SIGIO for persistent events.
565 * TODO - this define is not in MPI spec yet,
566 * but they plan to set it to 0x21
567 */
568 if (event == 0x21 ) {
569 ioc->aen_event_read_flag=1;
570 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Raised SIGIO to application\n",
571 ioc->name));
572 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT
573 "Raised SIGIO to application\n", ioc->name));
574 kill_fasync(&async_queue, SIGIO, POLL_IN);
575 return 1;
576 }
577
578 /* This flag is set after SIGIO was raised, and
579 * remains set until the application has read
580 * the event log via ioctl=MPTEVENTREPORT
581 */
582 if(ioc->aen_event_read_flag)
583 return 1;
584
585 /* Signal only for the events that are
586 * requested for by the application
587 */
588 if (ioc->events && (ioc->eventTypes & ( 1 << event))) {
589 ioc->aen_event_read_flag=1;
590 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT
591 "Raised SIGIO to application\n", ioc->name));
592 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT
593 "Raised SIGIO to application\n", ioc->name));
594 kill_fasync(&async_queue, SIGIO, POLL_IN);
595 }
596 return 1;
597 }
598
599 static int
mptctl_fasync(int fd,struct file * filep,int mode)600 mptctl_fasync(int fd, struct file *filep, int mode)
601 {
602 MPT_ADAPTER *ioc;
603 int ret;
604
605 mutex_lock(&mpctl_mutex);
606 list_for_each_entry(ioc, &ioc_list, list)
607 ioc->aen_event_read_flag=0;
608
609 ret = fasync_helper(fd, filep, mode, &async_queue);
610 mutex_unlock(&mpctl_mutex);
611 return ret;
612 }
613
614 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
615 /*
616 * MPT ioctl handler
617 * cmd - specify the particular IOCTL command to be issued
618 * arg - data specific to the command. Must not be null.
619 */
620 static long
__mptctl_ioctl(struct file * file,unsigned int cmd,unsigned long arg)621 __mptctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
622 {
623 mpt_ioctl_header __user *uhdr = (void __user *) arg;
624 mpt_ioctl_header khdr;
625 int iocnum;
626 unsigned iocnumX;
627 int nonblock = (file->f_flags & O_NONBLOCK);
628 int ret;
629 MPT_ADAPTER *iocp = NULL;
630
631 if (copy_from_user(&khdr, uhdr, sizeof(khdr))) {
632 printk(KERN_ERR MYNAM "%s::mptctl_ioctl() @%d - "
633 "Unable to copy mpt_ioctl_header data @ %p\n",
634 __FILE__, __LINE__, uhdr);
635 return -EFAULT;
636 }
637 ret = -ENXIO; /* (-6) No such device or address */
638
639 /* Verify intended MPT adapter - set iocnum and the adapter
640 * pointer (iocp)
641 */
642 iocnumX = khdr.iocnum & 0xFF;
643 if (((iocnum = mpt_verify_adapter(iocnumX, &iocp)) < 0) ||
644 (iocp == NULL))
645 return -ENODEV;
646
647 if (!iocp->active) {
648 printk(KERN_DEBUG MYNAM "%s::mptctl_ioctl() @%d - Controller disabled.\n",
649 __FILE__, __LINE__);
650 return -EFAULT;
651 }
652
653 /* Handle those commands that are just returning
654 * information stored in the driver.
655 * These commands should never time out and are unaffected
656 * by TM and FW reloads.
657 */
658 if ((cmd & ~IOCSIZE_MASK) == (MPTIOCINFO & ~IOCSIZE_MASK)) {
659 return mptctl_getiocinfo(arg, _IOC_SIZE(cmd));
660 } else if (cmd == MPTTARGETINFO) {
661 return mptctl_gettargetinfo(arg);
662 } else if (cmd == MPTTEST) {
663 return mptctl_readtest(arg);
664 } else if (cmd == MPTEVENTQUERY) {
665 return mptctl_eventquery(arg);
666 } else if (cmd == MPTEVENTENABLE) {
667 return mptctl_eventenable(arg);
668 } else if (cmd == MPTEVENTREPORT) {
669 return mptctl_eventreport(arg);
670 } else if (cmd == MPTFWREPLACE) {
671 return mptctl_replace_fw(arg);
672 }
673
674 /* All of these commands require an interrupt or
675 * are unknown/illegal.
676 */
677 if ((ret = mptctl_syscall_down(iocp, nonblock)) != 0)
678 return ret;
679
680 if (cmd == MPTFWDOWNLOAD)
681 ret = mptctl_fw_download(arg);
682 else if (cmd == MPTCOMMAND)
683 ret = mptctl_mpt_command(arg);
684 else if (cmd == MPTHARDRESET)
685 ret = mptctl_do_reset(arg);
686 else if ((cmd & ~IOCSIZE_MASK) == (HP_GETHOSTINFO & ~IOCSIZE_MASK))
687 ret = mptctl_hp_hostinfo(arg, _IOC_SIZE(cmd));
688 else if (cmd == HP_GETTARGETINFO)
689 ret = mptctl_hp_targetinfo(arg);
690 else
691 ret = -EINVAL;
692
693 mutex_unlock(&iocp->ioctl_cmds.mutex);
694
695 return ret;
696 }
697
698 static long
mptctl_ioctl(struct file * file,unsigned int cmd,unsigned long arg)699 mptctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
700 {
701 long ret;
702 mutex_lock(&mpctl_mutex);
703 ret = __mptctl_ioctl(file, cmd, arg);
704 mutex_unlock(&mpctl_mutex);
705 return ret;
706 }
707
mptctl_do_reset(unsigned long arg)708 static int mptctl_do_reset(unsigned long arg)
709 {
710 struct mpt_ioctl_diag_reset __user *urinfo = (void __user *) arg;
711 struct mpt_ioctl_diag_reset krinfo;
712 MPT_ADAPTER *iocp;
713
714 if (copy_from_user(&krinfo, urinfo, sizeof(struct mpt_ioctl_diag_reset))) {
715 printk(KERN_ERR MYNAM "%s@%d::mptctl_do_reset - "
716 "Unable to copy mpt_ioctl_diag_reset struct @ %p\n",
717 __FILE__, __LINE__, urinfo);
718 return -EFAULT;
719 }
720
721 if (mpt_verify_adapter(krinfo.hdr.iocnum, &iocp) < 0) {
722 printk(KERN_DEBUG MYNAM "%s@%d::mptctl_do_reset - ioc%d not found!\n",
723 __FILE__, __LINE__, krinfo.hdr.iocnum);
724 return -ENODEV; /* (-6) No such device or address */
725 }
726
727 dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT "mptctl_do_reset called.\n",
728 iocp->name));
729
730 if (mpt_HardResetHandler(iocp, CAN_SLEEP) != 0) {
731 printk (MYIOC_s_ERR_FMT "%s@%d::mptctl_do_reset - reset failed.\n",
732 iocp->name, __FILE__, __LINE__);
733 return -1;
734 }
735
736 return 0;
737 }
738
739 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
740 /*
741 * MPT FW download function. Cast the arg into the mpt_fw_xfer structure.
742 * This structure contains: iocnum, firmware length (bytes),
743 * pointer to user space memory where the fw image is stored.
744 *
745 * Outputs: None.
746 * Return: 0 if successful
747 * -EFAULT if data unavailable
748 * -ENXIO if no such device
749 * -EAGAIN if resource problem
750 * -ENOMEM if no memory for SGE
751 * -EMLINK if too many chain buffers required
752 * -EBADRQC if adapter does not support FW download
753 * -EBUSY if adapter is busy
754 * -ENOMSG if FW upload returned bad status
755 */
756 static int
mptctl_fw_download(unsigned long arg)757 mptctl_fw_download(unsigned long arg)
758 {
759 struct mpt_fw_xfer __user *ufwdl = (void __user *) arg;
760 struct mpt_fw_xfer kfwdl;
761
762 if (copy_from_user(&kfwdl, ufwdl, sizeof(struct mpt_fw_xfer))) {
763 printk(KERN_ERR MYNAM "%s@%d::_ioctl_fwdl - "
764 "Unable to copy mpt_fw_xfer struct @ %p\n",
765 __FILE__, __LINE__, ufwdl);
766 return -EFAULT;
767 }
768
769 return mptctl_do_fw_download(kfwdl.iocnum, kfwdl.bufp, kfwdl.fwlen);
770 }
771
772 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
773 /*
774 * FW Download engine.
775 * Outputs: None.
776 * Return: 0 if successful
777 * -EFAULT if data unavailable
778 * -ENXIO if no such device
779 * -EAGAIN if resource problem
780 * -ENOMEM if no memory for SGE
781 * -EMLINK if too many chain buffers required
782 * -EBADRQC if adapter does not support FW download
783 * -EBUSY if adapter is busy
784 * -ENOMSG if FW upload returned bad status
785 */
786 static int
mptctl_do_fw_download(int ioc,char __user * ufwbuf,size_t fwlen)787 mptctl_do_fw_download(int ioc, char __user *ufwbuf, size_t fwlen)
788 {
789 FWDownload_t *dlmsg;
790 MPT_FRAME_HDR *mf;
791 MPT_ADAPTER *iocp;
792 FWDownloadTCSGE_t *ptsge;
793 MptSge_t *sgl, *sgIn;
794 char *sgOut;
795 struct buflist *buflist;
796 struct buflist *bl;
797 dma_addr_t sgl_dma;
798 int ret;
799 int numfrags = 0;
800 int maxfrags;
801 int n = 0;
802 u32 sgdir;
803 u32 nib;
804 int fw_bytes_copied = 0;
805 int i;
806 int sge_offset = 0;
807 u16 iocstat;
808 pFWDownloadReply_t ReplyMsg = NULL;
809 unsigned long timeleft;
810
811 if (mpt_verify_adapter(ioc, &iocp) < 0) {
812 printk(KERN_DEBUG MYNAM "ioctl_fwdl - ioc%d not found!\n",
813 ioc);
814 return -ENODEV; /* (-6) No such device or address */
815 } else {
816
817 /* Valid device. Get a message frame and construct the FW download message.
818 */
819 if ((mf = mpt_get_msg_frame(mptctl_id, iocp)) == NULL)
820 return -EAGAIN;
821 }
822
823 dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT
824 "mptctl_do_fwdl called. mptctl_id = %xh.\n", iocp->name, mptctl_id));
825 dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT "DbG: kfwdl.bufp = %p\n",
826 iocp->name, ufwbuf));
827 dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT "DbG: kfwdl.fwlen = %d\n",
828 iocp->name, (int)fwlen));
829 dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT "DbG: kfwdl.ioc = %04xh\n",
830 iocp->name, ioc));
831
832 dlmsg = (FWDownload_t*) mf;
833 ptsge = (FWDownloadTCSGE_t *) &dlmsg->SGL;
834 sgOut = (char *) (ptsge + 1);
835
836 /*
837 * Construct f/w download request
838 */
839 dlmsg->ImageType = MPI_FW_DOWNLOAD_ITYPE_FW;
840 dlmsg->Reserved = 0;
841 dlmsg->ChainOffset = 0;
842 dlmsg->Function = MPI_FUNCTION_FW_DOWNLOAD;
843 dlmsg->Reserved1[0] = dlmsg->Reserved1[1] = dlmsg->Reserved1[2] = 0;
844 if (iocp->facts.MsgVersion >= MPI_VERSION_01_05)
845 dlmsg->MsgFlags = MPI_FW_DOWNLOAD_MSGFLGS_LAST_SEGMENT;
846 else
847 dlmsg->MsgFlags = 0;
848
849
850 /* Set up the Transaction SGE.
851 */
852 ptsge->Reserved = 0;
853 ptsge->ContextSize = 0;
854 ptsge->DetailsLength = 12;
855 ptsge->Flags = MPI_SGE_FLAGS_TRANSACTION_ELEMENT;
856 ptsge->Reserved_0100_Checksum = 0;
857 ptsge->ImageOffset = 0;
858 ptsge->ImageSize = cpu_to_le32(fwlen);
859
860 /* Add the SGL
861 */
862
863 /*
864 * Need to kmalloc area(s) for holding firmware image bytes.
865 * But we need to do it piece meal, using a proper
866 * scatter gather list (with 128kB MAX hunks).
867 *
868 * A practical limit here might be # of sg hunks that fit into
869 * a single IOC request frame; 12 or 8 (see below), so:
870 * For FC9xx: 12 x 128kB == 1.5 mB (max)
871 * For C1030: 8 x 128kB == 1 mB (max)
872 * We could support chaining, but things get ugly(ier:)
873 *
874 * Set the sge_offset to the start of the sgl (bytes).
875 */
876 sgdir = 0x04000000; /* IOC will READ from sys mem */
877 sge_offset = sizeof(MPIHeader_t) + sizeof(FWDownloadTCSGE_t);
878 if ((sgl = kbuf_alloc_2_sgl(fwlen, sgdir, sge_offset,
879 &numfrags, &buflist, &sgl_dma, iocp)) == NULL)
880 return -ENOMEM;
881
882 /*
883 * We should only need SGL with 2 simple_32bit entries (up to 256 kB)
884 * for FC9xx f/w image, but calculate max number of sge hunks
885 * we can fit into a request frame, and limit ourselves to that.
886 * (currently no chain support)
887 * maxfrags = (Request Size - FWdownload Size ) / Size of 32 bit SGE
888 * Request maxfrags
889 * 128 12
890 * 96 8
891 * 64 4
892 */
893 maxfrags = (iocp->req_sz - sizeof(MPIHeader_t) -
894 sizeof(FWDownloadTCSGE_t))
895 / iocp->SGE_size;
896 if (numfrags > maxfrags) {
897 ret = -EMLINK;
898 goto fwdl_out;
899 }
900
901 dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT "DbG: sgl buffer = %p, sgfrags = %d\n",
902 iocp->name, sgl, numfrags));
903
904 /*
905 * Parse SG list, copying sgl itself,
906 * plus f/w image hunks from user space as we go...
907 */
908 ret = -EFAULT;
909 sgIn = sgl;
910 bl = buflist;
911 for (i=0; i < numfrags; i++) {
912
913 /* Get the SGE type: 0 - TCSGE, 3 - Chain, 1 - Simple SGE
914 * Skip everything but Simple. If simple, copy from
915 * user space into kernel space.
916 * Note: we should not have anything but Simple as
917 * Chain SGE are illegal.
918 */
919 nib = (sgIn->FlagsLength & 0x30000000) >> 28;
920 if (nib == 0 || nib == 3) {
921 ;
922 } else if (sgIn->Address) {
923 iocp->add_sge(sgOut, sgIn->FlagsLength, sgIn->Address);
924 n++;
925 if (copy_from_user(bl->kptr, ufwbuf+fw_bytes_copied, bl->len)) {
926 printk(MYIOC_s_ERR_FMT "%s@%d::_ioctl_fwdl - "
927 "Unable to copy f/w buffer hunk#%d @ %p\n",
928 iocp->name, __FILE__, __LINE__, n, ufwbuf);
929 goto fwdl_out;
930 }
931 fw_bytes_copied += bl->len;
932 }
933 sgIn++;
934 bl++;
935 sgOut += iocp->SGE_size;
936 }
937
938 DBG_DUMP_FW_DOWNLOAD(iocp, (u32 *)mf, numfrags);
939
940 /*
941 * Finally, perform firmware download.
942 */
943 ReplyMsg = NULL;
944 SET_MGMT_MSG_CONTEXT(iocp->ioctl_cmds.msg_context, dlmsg->MsgContext);
945 INITIALIZE_MGMT_STATUS(iocp->ioctl_cmds.status)
946 mpt_put_msg_frame(mptctl_id, iocp, mf);
947
948 /* Now wait for the command to complete */
949 retry_wait:
950 timeleft = wait_for_completion_timeout(&iocp->ioctl_cmds.done, HZ*60);
951 if (!(iocp->ioctl_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
952 ret = -ETIME;
953 printk(MYIOC_s_WARN_FMT "%s: failed\n", iocp->name, __func__);
954 if (iocp->ioctl_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) {
955 mpt_free_msg_frame(iocp, mf);
956 goto fwdl_out;
957 }
958 if (!timeleft) {
959 printk(MYIOC_s_WARN_FMT
960 "FW download timeout, doorbell=0x%08x\n",
961 iocp->name, mpt_GetIocState(iocp, 0));
962 mptctl_timeout_expired(iocp, mf);
963 } else
964 goto retry_wait;
965 goto fwdl_out;
966 }
967
968 if (!(iocp->ioctl_cmds.status & MPT_MGMT_STATUS_RF_VALID)) {
969 printk(MYIOC_s_WARN_FMT "%s: failed\n", iocp->name, __func__);
970 mpt_free_msg_frame(iocp, mf);
971 ret = -ENODATA;
972 goto fwdl_out;
973 }
974
975 if (sgl)
976 kfree_sgl(sgl, sgl_dma, buflist, iocp);
977
978 ReplyMsg = (pFWDownloadReply_t)iocp->ioctl_cmds.reply;
979 iocstat = le16_to_cpu(ReplyMsg->IOCStatus) & MPI_IOCSTATUS_MASK;
980 if (iocstat == MPI_IOCSTATUS_SUCCESS) {
981 printk(MYIOC_s_INFO_FMT "F/W update successful!\n", iocp->name);
982 return 0;
983 } else if (iocstat == MPI_IOCSTATUS_INVALID_FUNCTION) {
984 printk(MYIOC_s_WARN_FMT "Hmmm... F/W download not supported!?!\n",
985 iocp->name);
986 printk(MYIOC_s_WARN_FMT "(time to go bang on somebodies door)\n",
987 iocp->name);
988 return -EBADRQC;
989 } else if (iocstat == MPI_IOCSTATUS_BUSY) {
990 printk(MYIOC_s_WARN_FMT "IOC_BUSY!\n", iocp->name);
991 printk(MYIOC_s_WARN_FMT "(try again later?)\n", iocp->name);
992 return -EBUSY;
993 } else {
994 printk(MYIOC_s_WARN_FMT "ioctl_fwdl() returned [bad] status = %04xh\n",
995 iocp->name, iocstat);
996 printk(MYIOC_s_WARN_FMT "(bad VooDoo)\n", iocp->name);
997 return -ENOMSG;
998 }
999 return 0;
1000
1001 fwdl_out:
1002
1003 CLEAR_MGMT_STATUS(iocp->ioctl_cmds.status);
1004 SET_MGMT_MSG_CONTEXT(iocp->ioctl_cmds.msg_context, 0);
1005 kfree_sgl(sgl, sgl_dma, buflist, iocp);
1006 return ret;
1007 }
1008
1009 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1010 /*
1011 * SGE Allocation routine
1012 *
1013 * Inputs: bytes - number of bytes to be transferred
1014 * sgdir - data direction
1015 * sge_offset - offset (in bytes) from the start of the request
1016 * frame to the first SGE
1017 * ioc - pointer to the mptadapter
1018 * Outputs: frags - number of scatter gather elements
1019 * blp - point to the buflist pointer
1020 * sglbuf_dma - pointer to the (dma) sgl
1021 * Returns: Null if failes
1022 * pointer to the (virtual) sgl if successful.
1023 */
1024 static MptSge_t *
kbuf_alloc_2_sgl(int bytes,u32 sgdir,int sge_offset,int * frags,struct buflist ** blp,dma_addr_t * sglbuf_dma,MPT_ADAPTER * ioc)1025 kbuf_alloc_2_sgl(int bytes, u32 sgdir, int sge_offset, int *frags,
1026 struct buflist **blp, dma_addr_t *sglbuf_dma, MPT_ADAPTER *ioc)
1027 {
1028 MptSge_t *sglbuf = NULL; /* pointer to array of SGE */
1029 /* and chain buffers */
1030 struct buflist *buflist = NULL; /* kernel routine */
1031 MptSge_t *sgl;
1032 int numfrags = 0;
1033 int fragcnt = 0;
1034 int alloc_sz = min(bytes,MAX_KMALLOC_SZ); // avoid kernel warning msg!
1035 int bytes_allocd = 0;
1036 int this_alloc;
1037 dma_addr_t pa; // phys addr
1038 int i, buflist_ent;
1039 int sg_spill = MAX_FRAGS_SPILL1;
1040 int dir;
1041 /* initialization */
1042 *frags = 0;
1043 *blp = NULL;
1044
1045 /* Allocate and initialize an array of kernel
1046 * structures for the SG elements.
1047 */
1048 i = MAX_SGL_BYTES / 8;
1049 buflist = kzalloc(i, GFP_USER);
1050 if (!buflist)
1051 return NULL;
1052 buflist_ent = 0;
1053
1054 /* Allocate a single block of memory to store the sg elements and
1055 * the chain buffers. The calling routine is responsible for
1056 * copying the data in this array into the correct place in the
1057 * request and chain buffers.
1058 */
1059 sglbuf = pci_alloc_consistent(ioc->pcidev, MAX_SGL_BYTES, sglbuf_dma);
1060 if (sglbuf == NULL)
1061 goto free_and_fail;
1062
1063 if (sgdir & 0x04000000)
1064 dir = PCI_DMA_TODEVICE;
1065 else
1066 dir = PCI_DMA_FROMDEVICE;
1067
1068 /* At start:
1069 * sgl = sglbuf = point to beginning of sg buffer
1070 * buflist_ent = 0 = first kernel structure
1071 * sg_spill = number of SGE that can be written before the first
1072 * chain element.
1073 *
1074 */
1075 sgl = sglbuf;
1076 sg_spill = ((ioc->req_sz - sge_offset)/ioc->SGE_size) - 1;
1077 while (bytes_allocd < bytes) {
1078 this_alloc = min(alloc_sz, bytes-bytes_allocd);
1079 buflist[buflist_ent].len = this_alloc;
1080 buflist[buflist_ent].kptr = pci_alloc_consistent(ioc->pcidev,
1081 this_alloc,
1082 &pa);
1083 if (buflist[buflist_ent].kptr == NULL) {
1084 alloc_sz = alloc_sz / 2;
1085 if (alloc_sz == 0) {
1086 printk(MYIOC_s_WARN_FMT "-SG: No can do - "
1087 "not enough memory! :-(\n", ioc->name);
1088 printk(MYIOC_s_WARN_FMT "-SG: (freeing %d frags)\n",
1089 ioc->name, numfrags);
1090 goto free_and_fail;
1091 }
1092 continue;
1093 } else {
1094 dma_addr_t dma_addr;
1095
1096 bytes_allocd += this_alloc;
1097 sgl->FlagsLength = (0x10000000|sgdir|this_alloc);
1098 dma_addr = pci_map_single(ioc->pcidev,
1099 buflist[buflist_ent].kptr, this_alloc, dir);
1100 sgl->Address = dma_addr;
1101
1102 fragcnt++;
1103 numfrags++;
1104 sgl++;
1105 buflist_ent++;
1106 }
1107
1108 if (bytes_allocd >= bytes)
1109 break;
1110
1111 /* Need to chain? */
1112 if (fragcnt == sg_spill) {
1113 printk(MYIOC_s_WARN_FMT
1114 "-SG: No can do - " "Chain required! :-(\n", ioc->name);
1115 printk(MYIOC_s_WARN_FMT "(freeing %d frags)\n", ioc->name, numfrags);
1116 goto free_and_fail;
1117 }
1118
1119 /* overflow check... */
1120 if (numfrags*8 > MAX_SGL_BYTES){
1121 /* GRRRRR... */
1122 printk(MYIOC_s_WARN_FMT "-SG: No can do - "
1123 "too many SG frags! :-(\n", ioc->name);
1124 printk(MYIOC_s_WARN_FMT "-SG: (freeing %d frags)\n",
1125 ioc->name, numfrags);
1126 goto free_and_fail;
1127 }
1128 }
1129
1130 /* Last sge fixup: set LE+eol+eob bits */
1131 sgl[-1].FlagsLength |= 0xC1000000;
1132
1133 *frags = numfrags;
1134 *blp = buflist;
1135
1136 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "-SG: kbuf_alloc_2_sgl() - "
1137 "%d SG frags generated!\n", ioc->name, numfrags));
1138
1139 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "-SG: kbuf_alloc_2_sgl() - "
1140 "last (big) alloc_sz=%d\n", ioc->name, alloc_sz));
1141
1142 return sglbuf;
1143
1144 free_and_fail:
1145 if (sglbuf != NULL) {
1146 for (i = 0; i < numfrags; i++) {
1147 dma_addr_t dma_addr;
1148 u8 *kptr;
1149 int len;
1150
1151 if ((sglbuf[i].FlagsLength >> 24) == 0x30)
1152 continue;
1153
1154 dma_addr = sglbuf[i].Address;
1155 kptr = buflist[i].kptr;
1156 len = buflist[i].len;
1157
1158 pci_free_consistent(ioc->pcidev, len, kptr, dma_addr);
1159 }
1160 pci_free_consistent(ioc->pcidev, MAX_SGL_BYTES, sglbuf, *sglbuf_dma);
1161 }
1162 kfree(buflist);
1163 return NULL;
1164 }
1165
1166 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1167 /*
1168 * Routine to free the SGL elements.
1169 */
1170 static void
kfree_sgl(MptSge_t * sgl,dma_addr_t sgl_dma,struct buflist * buflist,MPT_ADAPTER * ioc)1171 kfree_sgl(MptSge_t *sgl, dma_addr_t sgl_dma, struct buflist *buflist, MPT_ADAPTER *ioc)
1172 {
1173 MptSge_t *sg = sgl;
1174 struct buflist *bl = buflist;
1175 u32 nib;
1176 int dir;
1177 int n = 0;
1178
1179 if (sg->FlagsLength & 0x04000000)
1180 dir = PCI_DMA_TODEVICE;
1181 else
1182 dir = PCI_DMA_FROMDEVICE;
1183
1184 nib = (sg->FlagsLength & 0xF0000000) >> 28;
1185 while (! (nib & 0x4)) { /* eob */
1186 /* skip ignore/chain. */
1187 if (nib == 0 || nib == 3) {
1188 ;
1189 } else if (sg->Address) {
1190 dma_addr_t dma_addr;
1191 void *kptr;
1192 int len;
1193
1194 dma_addr = sg->Address;
1195 kptr = bl->kptr;
1196 len = bl->len;
1197 pci_unmap_single(ioc->pcidev, dma_addr, len, dir);
1198 pci_free_consistent(ioc->pcidev, len, kptr, dma_addr);
1199 n++;
1200 }
1201 sg++;
1202 bl++;
1203 nib = (le32_to_cpu(sg->FlagsLength) & 0xF0000000) >> 28;
1204 }
1205
1206 /* we're at eob! */
1207 if (sg->Address) {
1208 dma_addr_t dma_addr;
1209 void *kptr;
1210 int len;
1211
1212 dma_addr = sg->Address;
1213 kptr = bl->kptr;
1214 len = bl->len;
1215 pci_unmap_single(ioc->pcidev, dma_addr, len, dir);
1216 pci_free_consistent(ioc->pcidev, len, kptr, dma_addr);
1217 n++;
1218 }
1219
1220 pci_free_consistent(ioc->pcidev, MAX_SGL_BYTES, sgl, sgl_dma);
1221 kfree(buflist);
1222 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "-SG: Free'd 1 SGL buf + %d kbufs!\n",
1223 ioc->name, n));
1224 }
1225
1226 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1227 /*
1228 * mptctl_getiocinfo - Query the host adapter for IOC information.
1229 * @arg: User space argument
1230 *
1231 * Outputs: None.
1232 * Return: 0 if successful
1233 * -EFAULT if data unavailable
1234 * -ENODEV if no such device/adapter
1235 */
1236 static int
mptctl_getiocinfo(unsigned long arg,unsigned int data_size)1237 mptctl_getiocinfo (unsigned long arg, unsigned int data_size)
1238 {
1239 struct mpt_ioctl_iocinfo __user *uarg = (void __user *) arg;
1240 struct mpt_ioctl_iocinfo *karg;
1241 MPT_ADAPTER *ioc;
1242 struct pci_dev *pdev;
1243 int iocnum;
1244 unsigned int port;
1245 int cim_rev;
1246 struct scsi_device *sdev;
1247 VirtDevice *vdevice;
1248
1249 /* Add of PCI INFO results in unaligned access for
1250 * IA64 and Sparc. Reset long to int. Return no PCI
1251 * data for obsolete format.
1252 */
1253 if (data_size == sizeof(struct mpt_ioctl_iocinfo_rev0))
1254 cim_rev = 0;
1255 else if (data_size == sizeof(struct mpt_ioctl_iocinfo_rev1))
1256 cim_rev = 1;
1257 else if (data_size == sizeof(struct mpt_ioctl_iocinfo))
1258 cim_rev = 2;
1259 else if (data_size == (sizeof(struct mpt_ioctl_iocinfo_rev0)+12))
1260 cim_rev = 0; /* obsolete */
1261 else
1262 return -EFAULT;
1263
1264 karg = kmalloc(data_size, GFP_KERNEL);
1265 if (karg == NULL) {
1266 printk(KERN_ERR MYNAM "%s::mpt_ioctl_iocinfo() @%d - no memory available!\n",
1267 __FILE__, __LINE__);
1268 return -ENOMEM;
1269 }
1270
1271 if (copy_from_user(karg, uarg, data_size)) {
1272 printk(KERN_ERR MYNAM "%s@%d::mptctl_getiocinfo - "
1273 "Unable to read in mpt_ioctl_iocinfo struct @ %p\n",
1274 __FILE__, __LINE__, uarg);
1275 kfree(karg);
1276 return -EFAULT;
1277 }
1278
1279 if (((iocnum = mpt_verify_adapter(karg->hdr.iocnum, &ioc)) < 0) ||
1280 (ioc == NULL)) {
1281 printk(KERN_DEBUG MYNAM "%s::mptctl_getiocinfo() @%d - ioc%d not found!\n",
1282 __FILE__, __LINE__, iocnum);
1283 kfree(karg);
1284 return -ENODEV;
1285 }
1286
1287 /* Verify the data transfer size is correct. */
1288 if (karg->hdr.maxDataSize != data_size) {
1289 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_getiocinfo - "
1290 "Structure size mismatch. Command not completed.\n",
1291 ioc->name, __FILE__, __LINE__);
1292 kfree(karg);
1293 return -EFAULT;
1294 }
1295
1296 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_getiocinfo called.\n",
1297 ioc->name));
1298
1299 /* Fill in the data and return the structure to the calling
1300 * program
1301 */
1302 if (ioc->bus_type == SAS)
1303 karg->adapterType = MPT_IOCTL_INTERFACE_SAS;
1304 else if (ioc->bus_type == FC)
1305 karg->adapterType = MPT_IOCTL_INTERFACE_FC;
1306 else
1307 karg->adapterType = MPT_IOCTL_INTERFACE_SCSI;
1308
1309 if (karg->hdr.port > 1) {
1310 kfree(karg);
1311 return -EINVAL;
1312 }
1313 port = karg->hdr.port;
1314
1315 karg->port = port;
1316 pdev = (struct pci_dev *) ioc->pcidev;
1317
1318 karg->pciId = pdev->device;
1319 karg->hwRev = pdev->revision;
1320 karg->subSystemDevice = pdev->subsystem_device;
1321 karg->subSystemVendor = pdev->subsystem_vendor;
1322
1323 if (cim_rev == 1) {
1324 /* Get the PCI bus, device, and function numbers for the IOC
1325 */
1326 karg->pciInfo.u.bits.busNumber = pdev->bus->number;
1327 karg->pciInfo.u.bits.deviceNumber = PCI_SLOT( pdev->devfn );
1328 karg->pciInfo.u.bits.functionNumber = PCI_FUNC( pdev->devfn );
1329 } else if (cim_rev == 2) {
1330 /* Get the PCI bus, device, function and segment ID numbers
1331 for the IOC */
1332 karg->pciInfo.u.bits.busNumber = pdev->bus->number;
1333 karg->pciInfo.u.bits.deviceNumber = PCI_SLOT( pdev->devfn );
1334 karg->pciInfo.u.bits.functionNumber = PCI_FUNC( pdev->devfn );
1335 karg->pciInfo.segmentID = pci_domain_nr(pdev->bus);
1336 }
1337
1338 /* Get number of devices
1339 */
1340 karg->numDevices = 0;
1341 if (ioc->sh) {
1342 shost_for_each_device(sdev, ioc->sh) {
1343 vdevice = sdev->hostdata;
1344 if (vdevice == NULL || vdevice->vtarget == NULL)
1345 continue;
1346 if (vdevice->vtarget->tflags &
1347 MPT_TARGET_FLAGS_RAID_COMPONENT)
1348 continue;
1349 karg->numDevices++;
1350 }
1351 }
1352
1353 /* Set the BIOS and FW Version
1354 */
1355 karg->FWVersion = ioc->facts.FWVersion.Word;
1356 karg->BIOSVersion = ioc->biosVersion;
1357
1358 /* Set the Version Strings.
1359 */
1360 strncpy (karg->driverVersion, MPT_LINUX_PACKAGE_NAME, MPT_IOCTL_VERSION_LENGTH);
1361 karg->driverVersion[MPT_IOCTL_VERSION_LENGTH-1]='\0';
1362
1363 karg->busChangeEvent = 0;
1364 karg->hostId = ioc->pfacts[port].PortSCSIID;
1365 karg->rsvd[0] = karg->rsvd[1] = 0;
1366
1367 /* Copy the data from kernel memory to user memory
1368 */
1369 if (copy_to_user((char __user *)arg, karg, data_size)) {
1370 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_getiocinfo - "
1371 "Unable to write out mpt_ioctl_iocinfo struct @ %p\n",
1372 ioc->name, __FILE__, __LINE__, uarg);
1373 kfree(karg);
1374 return -EFAULT;
1375 }
1376
1377 kfree(karg);
1378 return 0;
1379 }
1380
1381 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1382 /*
1383 * mptctl_gettargetinfo - Query the host adapter for target information.
1384 * @arg: User space argument
1385 *
1386 * Outputs: None.
1387 * Return: 0 if successful
1388 * -EFAULT if data unavailable
1389 * -ENODEV if no such device/adapter
1390 */
1391 static int
mptctl_gettargetinfo(unsigned long arg)1392 mptctl_gettargetinfo (unsigned long arg)
1393 {
1394 struct mpt_ioctl_targetinfo __user *uarg = (void __user *) arg;
1395 struct mpt_ioctl_targetinfo karg;
1396 MPT_ADAPTER *ioc;
1397 VirtDevice *vdevice;
1398 char *pmem;
1399 int *pdata;
1400 int iocnum;
1401 int numDevices = 0;
1402 int lun;
1403 int maxWordsLeft;
1404 int numBytes;
1405 u8 port;
1406 struct scsi_device *sdev;
1407
1408 if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_targetinfo))) {
1409 printk(KERN_ERR MYNAM "%s@%d::mptctl_gettargetinfo - "
1410 "Unable to read in mpt_ioctl_targetinfo struct @ %p\n",
1411 __FILE__, __LINE__, uarg);
1412 return -EFAULT;
1413 }
1414
1415 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
1416 (ioc == NULL)) {
1417 printk(KERN_DEBUG MYNAM "%s::mptctl_gettargetinfo() @%d - ioc%d not found!\n",
1418 __FILE__, __LINE__, iocnum);
1419 return -ENODEV;
1420 }
1421
1422 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_gettargetinfo called.\n",
1423 ioc->name));
1424 /* Get the port number and set the maximum number of bytes
1425 * in the returned structure.
1426 * Ignore the port setting.
1427 */
1428 numBytes = karg.hdr.maxDataSize - sizeof(mpt_ioctl_header);
1429 maxWordsLeft = numBytes/sizeof(int);
1430 port = karg.hdr.port;
1431
1432 if (maxWordsLeft <= 0) {
1433 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_gettargetinfo() - no memory available!\n",
1434 ioc->name, __FILE__, __LINE__);
1435 return -ENOMEM;
1436 }
1437
1438 /* Fill in the data and return the structure to the calling
1439 * program
1440 */
1441
1442 /* struct mpt_ioctl_targetinfo does not contain sufficient space
1443 * for the target structures so when the IOCTL is called, there is
1444 * not sufficient stack space for the structure. Allocate memory,
1445 * populate the memory, copy back to the user, then free memory.
1446 * targetInfo format:
1447 * bits 31-24: reserved
1448 * 23-16: LUN
1449 * 15- 8: Bus Number
1450 * 7- 0: Target ID
1451 */
1452 pmem = kzalloc(numBytes, GFP_KERNEL);
1453 if (!pmem) {
1454 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_gettargetinfo() - no memory available!\n",
1455 ioc->name, __FILE__, __LINE__);
1456 return -ENOMEM;
1457 }
1458 pdata = (int *) pmem;
1459
1460 /* Get number of devices
1461 */
1462 if (ioc->sh){
1463 shost_for_each_device(sdev, ioc->sh) {
1464 if (!maxWordsLeft)
1465 continue;
1466 vdevice = sdev->hostdata;
1467 if (vdevice == NULL || vdevice->vtarget == NULL)
1468 continue;
1469 if (vdevice->vtarget->tflags &
1470 MPT_TARGET_FLAGS_RAID_COMPONENT)
1471 continue;
1472 lun = (vdevice->vtarget->raidVolume) ? 0x80 : vdevice->lun;
1473 *pdata = (((u8)lun << 16) + (vdevice->vtarget->channel << 8) +
1474 (vdevice->vtarget->id ));
1475 pdata++;
1476 numDevices++;
1477 --maxWordsLeft;
1478 }
1479 }
1480 karg.numDevices = numDevices;
1481
1482 /* Copy part of the data from kernel memory to user memory
1483 */
1484 if (copy_to_user((char __user *)arg, &karg,
1485 sizeof(struct mpt_ioctl_targetinfo))) {
1486 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_gettargetinfo - "
1487 "Unable to write out mpt_ioctl_targetinfo struct @ %p\n",
1488 ioc->name, __FILE__, __LINE__, uarg);
1489 kfree(pmem);
1490 return -EFAULT;
1491 }
1492
1493 /* Copy the remaining data from kernel memory to user memory
1494 */
1495 if (copy_to_user(uarg->targetInfo, pmem, numBytes)) {
1496 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_gettargetinfo - "
1497 "Unable to write out mpt_ioctl_targetinfo struct @ %p\n",
1498 ioc->name, __FILE__, __LINE__, pdata);
1499 kfree(pmem);
1500 return -EFAULT;
1501 }
1502
1503 kfree(pmem);
1504
1505 return 0;
1506 }
1507
1508 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1509 /* MPT IOCTL Test function.
1510 *
1511 * Outputs: None.
1512 * Return: 0 if successful
1513 * -EFAULT if data unavailable
1514 * -ENODEV if no such device/adapter
1515 */
1516 static int
mptctl_readtest(unsigned long arg)1517 mptctl_readtest (unsigned long arg)
1518 {
1519 struct mpt_ioctl_test __user *uarg = (void __user *) arg;
1520 struct mpt_ioctl_test karg;
1521 MPT_ADAPTER *ioc;
1522 int iocnum;
1523
1524 if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_test))) {
1525 printk(KERN_ERR MYNAM "%s@%d::mptctl_readtest - "
1526 "Unable to read in mpt_ioctl_test struct @ %p\n",
1527 __FILE__, __LINE__, uarg);
1528 return -EFAULT;
1529 }
1530
1531 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
1532 (ioc == NULL)) {
1533 printk(KERN_DEBUG MYNAM "%s::mptctl_readtest() @%d - ioc%d not found!\n",
1534 __FILE__, __LINE__, iocnum);
1535 return -ENODEV;
1536 }
1537
1538 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_readtest called.\n",
1539 ioc->name));
1540 /* Fill in the data and return the structure to the calling
1541 * program
1542 */
1543
1544 #ifdef MFCNT
1545 karg.chip_type = ioc->mfcnt;
1546 #else
1547 karg.chip_type = ioc->pcidev->device;
1548 #endif
1549 strncpy (karg.name, ioc->name, MPT_MAX_NAME);
1550 karg.name[MPT_MAX_NAME-1]='\0';
1551 strncpy (karg.product, ioc->prod_name, MPT_PRODUCT_LENGTH);
1552 karg.product[MPT_PRODUCT_LENGTH-1]='\0';
1553
1554 /* Copy the data from kernel memory to user memory
1555 */
1556 if (copy_to_user((char __user *)arg, &karg, sizeof(struct mpt_ioctl_test))) {
1557 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_readtest - "
1558 "Unable to write out mpt_ioctl_test struct @ %p\n",
1559 ioc->name, __FILE__, __LINE__, uarg);
1560 return -EFAULT;
1561 }
1562
1563 return 0;
1564 }
1565
1566 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1567 /*
1568 * mptctl_eventquery - Query the host adapter for the event types
1569 * that are being logged.
1570 * @arg: User space argument
1571 *
1572 * Outputs: None.
1573 * Return: 0 if successful
1574 * -EFAULT if data unavailable
1575 * -ENODEV if no such device/adapter
1576 */
1577 static int
mptctl_eventquery(unsigned long arg)1578 mptctl_eventquery (unsigned long arg)
1579 {
1580 struct mpt_ioctl_eventquery __user *uarg = (void __user *) arg;
1581 struct mpt_ioctl_eventquery karg;
1582 MPT_ADAPTER *ioc;
1583 int iocnum;
1584
1585 if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_eventquery))) {
1586 printk(KERN_ERR MYNAM "%s@%d::mptctl_eventquery - "
1587 "Unable to read in mpt_ioctl_eventquery struct @ %p\n",
1588 __FILE__, __LINE__, uarg);
1589 return -EFAULT;
1590 }
1591
1592 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
1593 (ioc == NULL)) {
1594 printk(KERN_DEBUG MYNAM "%s::mptctl_eventquery() @%d - ioc%d not found!\n",
1595 __FILE__, __LINE__, iocnum);
1596 return -ENODEV;
1597 }
1598
1599 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_eventquery called.\n",
1600 ioc->name));
1601 karg.eventEntries = MPTCTL_EVENT_LOG_SIZE;
1602 karg.eventTypes = ioc->eventTypes;
1603
1604 /* Copy the data from kernel memory to user memory
1605 */
1606 if (copy_to_user((char __user *)arg, &karg, sizeof(struct mpt_ioctl_eventquery))) {
1607 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_eventquery - "
1608 "Unable to write out mpt_ioctl_eventquery struct @ %p\n",
1609 ioc->name, __FILE__, __LINE__, uarg);
1610 return -EFAULT;
1611 }
1612 return 0;
1613 }
1614
1615 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1616 static int
mptctl_eventenable(unsigned long arg)1617 mptctl_eventenable (unsigned long arg)
1618 {
1619 struct mpt_ioctl_eventenable __user *uarg = (void __user *) arg;
1620 struct mpt_ioctl_eventenable karg;
1621 MPT_ADAPTER *ioc;
1622 int iocnum;
1623
1624 if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_eventenable))) {
1625 printk(KERN_ERR MYNAM "%s@%d::mptctl_eventenable - "
1626 "Unable to read in mpt_ioctl_eventenable struct @ %p\n",
1627 __FILE__, __LINE__, uarg);
1628 return -EFAULT;
1629 }
1630
1631 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
1632 (ioc == NULL)) {
1633 printk(KERN_DEBUG MYNAM "%s::mptctl_eventenable() @%d - ioc%d not found!\n",
1634 __FILE__, __LINE__, iocnum);
1635 return -ENODEV;
1636 }
1637
1638 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_eventenable called.\n",
1639 ioc->name));
1640 if (ioc->events == NULL) {
1641 /* Have not yet allocated memory - do so now.
1642 */
1643 int sz = MPTCTL_EVENT_LOG_SIZE * sizeof(MPT_IOCTL_EVENTS);
1644 ioc->events = kzalloc(sz, GFP_KERNEL);
1645 if (!ioc->events) {
1646 printk(MYIOC_s_ERR_FMT
1647 ": ERROR - Insufficient memory to add adapter!\n",
1648 ioc->name);
1649 return -ENOMEM;
1650 }
1651 ioc->alloc_total += sz;
1652
1653 ioc->eventContext = 0;
1654 }
1655
1656 /* Update the IOC event logging flag.
1657 */
1658 ioc->eventTypes = karg.eventTypes;
1659
1660 return 0;
1661 }
1662
1663 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1664 static int
mptctl_eventreport(unsigned long arg)1665 mptctl_eventreport (unsigned long arg)
1666 {
1667 struct mpt_ioctl_eventreport __user *uarg = (void __user *) arg;
1668 struct mpt_ioctl_eventreport karg;
1669 MPT_ADAPTER *ioc;
1670 int iocnum;
1671 int numBytes, maxEvents, max;
1672
1673 if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_eventreport))) {
1674 printk(KERN_ERR MYNAM "%s@%d::mptctl_eventreport - "
1675 "Unable to read in mpt_ioctl_eventreport struct @ %p\n",
1676 __FILE__, __LINE__, uarg);
1677 return -EFAULT;
1678 }
1679
1680 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
1681 (ioc == NULL)) {
1682 printk(KERN_DEBUG MYNAM "%s::mptctl_eventreport() @%d - ioc%d not found!\n",
1683 __FILE__, __LINE__, iocnum);
1684 return -ENODEV;
1685 }
1686 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_eventreport called.\n",
1687 ioc->name));
1688
1689 numBytes = karg.hdr.maxDataSize - sizeof(mpt_ioctl_header);
1690 maxEvents = numBytes/sizeof(MPT_IOCTL_EVENTS);
1691
1692
1693 max = MPTCTL_EVENT_LOG_SIZE < maxEvents ? MPTCTL_EVENT_LOG_SIZE : maxEvents;
1694
1695 /* If fewer than 1 event is requested, there must have
1696 * been some type of error.
1697 */
1698 if ((max < 1) || !ioc->events)
1699 return -ENODATA;
1700
1701 /* reset this flag so SIGIO can restart */
1702 ioc->aen_event_read_flag=0;
1703
1704 /* Copy the data from kernel memory to user memory
1705 */
1706 numBytes = max * sizeof(MPT_IOCTL_EVENTS);
1707 if (copy_to_user(uarg->eventData, ioc->events, numBytes)) {
1708 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_eventreport - "
1709 "Unable to write out mpt_ioctl_eventreport struct @ %p\n",
1710 ioc->name, __FILE__, __LINE__, ioc->events);
1711 return -EFAULT;
1712 }
1713
1714 return 0;
1715 }
1716
1717 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1718 static int
mptctl_replace_fw(unsigned long arg)1719 mptctl_replace_fw (unsigned long arg)
1720 {
1721 struct mpt_ioctl_replace_fw __user *uarg = (void __user *) arg;
1722 struct mpt_ioctl_replace_fw karg;
1723 MPT_ADAPTER *ioc;
1724 int iocnum;
1725 int newFwSize;
1726
1727 if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_replace_fw))) {
1728 printk(KERN_ERR MYNAM "%s@%d::mptctl_replace_fw - "
1729 "Unable to read in mpt_ioctl_replace_fw struct @ %p\n",
1730 __FILE__, __LINE__, uarg);
1731 return -EFAULT;
1732 }
1733
1734 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
1735 (ioc == NULL)) {
1736 printk(KERN_DEBUG MYNAM "%s::mptctl_replace_fw() @%d - ioc%d not found!\n",
1737 __FILE__, __LINE__, iocnum);
1738 return -ENODEV;
1739 }
1740
1741 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_replace_fw called.\n",
1742 ioc->name));
1743 /* If caching FW, Free the old FW image
1744 */
1745 if (ioc->cached_fw == NULL)
1746 return 0;
1747
1748 mpt_free_fw_memory(ioc);
1749
1750 /* Allocate memory for the new FW image
1751 */
1752 newFwSize = karg.newImageSize;
1753
1754 if (newFwSize & 0x01)
1755 newFwSize += 1;
1756 if (newFwSize & 0x02)
1757 newFwSize += 2;
1758
1759 mpt_alloc_fw_memory(ioc, newFwSize);
1760 if (ioc->cached_fw == NULL)
1761 return -ENOMEM;
1762
1763 /* Copy the data from user memory to kernel space
1764 */
1765 if (copy_from_user(ioc->cached_fw, uarg->newImage, newFwSize)) {
1766 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_replace_fw - "
1767 "Unable to read in mpt_ioctl_replace_fw image "
1768 "@ %p\n", ioc->name, __FILE__, __LINE__, uarg);
1769 mpt_free_fw_memory(ioc);
1770 return -EFAULT;
1771 }
1772
1773 /* Update IOCFactsReply
1774 */
1775 ioc->facts.FWImageSize = newFwSize;
1776 return 0;
1777 }
1778
1779 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1780 /* MPT IOCTL MPTCOMMAND function.
1781 * Cast the arg into the mpt_ioctl_mpt_command structure.
1782 *
1783 * Outputs: None.
1784 * Return: 0 if successful
1785 * -EBUSY if previous command timeout and IOC reset is not complete.
1786 * -EFAULT if data unavailable
1787 * -ENODEV if no such device/adapter
1788 * -ETIME if timer expires
1789 * -ENOMEM if memory allocation error
1790 */
1791 static int
mptctl_mpt_command(unsigned long arg)1792 mptctl_mpt_command (unsigned long arg)
1793 {
1794 struct mpt_ioctl_command __user *uarg = (void __user *) arg;
1795 struct mpt_ioctl_command karg;
1796 MPT_ADAPTER *ioc;
1797 int iocnum;
1798 int rc;
1799
1800
1801 if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_command))) {
1802 printk(KERN_ERR MYNAM "%s@%d::mptctl_mpt_command - "
1803 "Unable to read in mpt_ioctl_command struct @ %p\n",
1804 __FILE__, __LINE__, uarg);
1805 return -EFAULT;
1806 }
1807
1808 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
1809 (ioc == NULL)) {
1810 printk(KERN_DEBUG MYNAM "%s::mptctl_mpt_command() @%d - ioc%d not found!\n",
1811 __FILE__, __LINE__, iocnum);
1812 return -ENODEV;
1813 }
1814
1815 rc = mptctl_do_mpt_command (karg, &uarg->MF);
1816
1817 return rc;
1818 }
1819
1820 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1821 /* Worker routine for the IOCTL MPTCOMMAND and MPTCOMMAND32 (sparc) commands.
1822 *
1823 * Outputs: None.
1824 * Return: 0 if successful
1825 * -EBUSY if previous command timeout and IOC reset is not complete.
1826 * -EFAULT if data unavailable
1827 * -ENODEV if no such device/adapter
1828 * -ETIME if timer expires
1829 * -ENOMEM if memory allocation error
1830 * -EPERM if SCSI I/O and target is untagged
1831 */
1832 static int
mptctl_do_mpt_command(struct mpt_ioctl_command karg,void __user * mfPtr)1833 mptctl_do_mpt_command (struct mpt_ioctl_command karg, void __user *mfPtr)
1834 {
1835 MPT_ADAPTER *ioc;
1836 MPT_FRAME_HDR *mf = NULL;
1837 MPIHeader_t *hdr;
1838 char *psge;
1839 struct buflist bufIn; /* data In buffer */
1840 struct buflist bufOut; /* data Out buffer */
1841 dma_addr_t dma_addr_in;
1842 dma_addr_t dma_addr_out;
1843 int sgSize = 0; /* Num SG elements */
1844 int iocnum, flagsLength;
1845 int sz, rc = 0;
1846 int msgContext;
1847 u16 req_idx;
1848 ulong timeout;
1849 unsigned long timeleft;
1850 struct scsi_device *sdev;
1851 unsigned long flags;
1852 u8 function;
1853
1854 /* bufIn and bufOut are used for user to kernel space transfers
1855 */
1856 bufIn.kptr = bufOut.kptr = NULL;
1857 bufIn.len = bufOut.len = 0;
1858
1859 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
1860 (ioc == NULL)) {
1861 printk(KERN_DEBUG MYNAM "%s::mptctl_do_mpt_command() @%d - ioc%d not found!\n",
1862 __FILE__, __LINE__, iocnum);
1863 return -ENODEV;
1864 }
1865
1866 spin_lock_irqsave(&ioc->taskmgmt_lock, flags);
1867 if (ioc->ioc_reset_in_progress) {
1868 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
1869 printk(KERN_ERR MYNAM "%s@%d::mptctl_do_mpt_command - "
1870 "Busy with diagnostic reset\n", __FILE__, __LINE__);
1871 return -EBUSY;
1872 }
1873 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
1874
1875 /* Verify that the final request frame will not be too large.
1876 */
1877 sz = karg.dataSgeOffset * 4;
1878 if (karg.dataInSize > 0)
1879 sz += ioc->SGE_size;
1880 if (karg.dataOutSize > 0)
1881 sz += ioc->SGE_size;
1882
1883 if (sz > ioc->req_sz) {
1884 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
1885 "Request frame too large (%d) maximum (%d)\n",
1886 ioc->name, __FILE__, __LINE__, sz, ioc->req_sz);
1887 return -EFAULT;
1888 }
1889
1890 /* Get a free request frame and save the message context.
1891 */
1892 if ((mf = mpt_get_msg_frame(mptctl_id, ioc)) == NULL)
1893 return -EAGAIN;
1894
1895 hdr = (MPIHeader_t *) mf;
1896 msgContext = le32_to_cpu(hdr->MsgContext);
1897 req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
1898
1899 /* Copy the request frame
1900 * Reset the saved message context.
1901 * Request frame in user space
1902 */
1903 if (copy_from_user(mf, mfPtr, karg.dataSgeOffset * 4)) {
1904 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
1905 "Unable to read MF from mpt_ioctl_command struct @ %p\n",
1906 ioc->name, __FILE__, __LINE__, mfPtr);
1907 function = -1;
1908 rc = -EFAULT;
1909 goto done_free_mem;
1910 }
1911 hdr->MsgContext = cpu_to_le32(msgContext);
1912 function = hdr->Function;
1913
1914
1915 /* Verify that this request is allowed.
1916 */
1917 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "sending mpi function (0x%02X), req=%p\n",
1918 ioc->name, hdr->Function, mf));
1919
1920 switch (function) {
1921 case MPI_FUNCTION_IOC_FACTS:
1922 case MPI_FUNCTION_PORT_FACTS:
1923 karg.dataOutSize = karg.dataInSize = 0;
1924 break;
1925
1926 case MPI_FUNCTION_CONFIG:
1927 {
1928 Config_t *config_frame;
1929 config_frame = (Config_t *)mf;
1930 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "\ttype=0x%02x ext_type=0x%02x "
1931 "number=0x%02x action=0x%02x\n", ioc->name,
1932 config_frame->Header.PageType,
1933 config_frame->ExtPageType,
1934 config_frame->Header.PageNumber,
1935 config_frame->Action));
1936 break;
1937 }
1938
1939 case MPI_FUNCTION_FC_COMMON_TRANSPORT_SEND:
1940 case MPI_FUNCTION_FC_EX_LINK_SRVC_SEND:
1941 case MPI_FUNCTION_FW_UPLOAD:
1942 case MPI_FUNCTION_SCSI_ENCLOSURE_PROCESSOR:
1943 case MPI_FUNCTION_FW_DOWNLOAD:
1944 case MPI_FUNCTION_FC_PRIMITIVE_SEND:
1945 case MPI_FUNCTION_TOOLBOX:
1946 case MPI_FUNCTION_SAS_IO_UNIT_CONTROL:
1947 break;
1948
1949 case MPI_FUNCTION_SCSI_IO_REQUEST:
1950 if (ioc->sh) {
1951 SCSIIORequest_t *pScsiReq = (SCSIIORequest_t *) mf;
1952 int qtag = MPI_SCSIIO_CONTROL_UNTAGGED;
1953 int scsidir = 0;
1954 int dataSize;
1955 u32 id;
1956
1957 id = (ioc->devices_per_bus == 0) ? 256 : ioc->devices_per_bus;
1958 if (pScsiReq->TargetID > id) {
1959 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
1960 "Target ID out of bounds. \n",
1961 ioc->name, __FILE__, __LINE__);
1962 rc = -ENODEV;
1963 goto done_free_mem;
1964 }
1965
1966 if (pScsiReq->Bus >= ioc->number_of_buses) {
1967 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
1968 "Target Bus out of bounds. \n",
1969 ioc->name, __FILE__, __LINE__);
1970 rc = -ENODEV;
1971 goto done_free_mem;
1972 }
1973
1974 pScsiReq->MsgFlags &= ~MPI_SCSIIO_MSGFLGS_SENSE_WIDTH;
1975 pScsiReq->MsgFlags |= mpt_msg_flags(ioc);
1976
1977
1978 /* verify that app has not requested
1979 * more sense data than driver
1980 * can provide, if so, reset this parameter
1981 * set the sense buffer pointer low address
1982 * update the control field to specify Q type
1983 */
1984 if (karg.maxSenseBytes > MPT_SENSE_BUFFER_SIZE)
1985 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
1986 else
1987 pScsiReq->SenseBufferLength = karg.maxSenseBytes;
1988
1989 pScsiReq->SenseBufferLowAddr =
1990 cpu_to_le32(ioc->sense_buf_low_dma
1991 + (req_idx * MPT_SENSE_BUFFER_ALLOC));
1992
1993 shost_for_each_device(sdev, ioc->sh) {
1994 struct scsi_target *starget = scsi_target(sdev);
1995 VirtTarget *vtarget = starget->hostdata;
1996
1997 if (vtarget == NULL)
1998 continue;
1999
2000 if ((pScsiReq->TargetID == vtarget->id) &&
2001 (pScsiReq->Bus == vtarget->channel) &&
2002 (vtarget->tflags & MPT_TARGET_FLAGS_Q_YES))
2003 qtag = MPI_SCSIIO_CONTROL_SIMPLEQ;
2004 }
2005
2006 /* Have the IOCTL driver set the direction based
2007 * on the dataOutSize (ordering issue with Sparc).
2008 */
2009 if (karg.dataOutSize > 0) {
2010 scsidir = MPI_SCSIIO_CONTROL_WRITE;
2011 dataSize = karg.dataOutSize;
2012 } else {
2013 scsidir = MPI_SCSIIO_CONTROL_READ;
2014 dataSize = karg.dataInSize;
2015 }
2016
2017 pScsiReq->Control = cpu_to_le32(scsidir | qtag);
2018 pScsiReq->DataLength = cpu_to_le32(dataSize);
2019
2020
2021 } else {
2022 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
2023 "SCSI driver is not loaded. \n",
2024 ioc->name, __FILE__, __LINE__);
2025 rc = -EFAULT;
2026 goto done_free_mem;
2027 }
2028 break;
2029
2030 case MPI_FUNCTION_SMP_PASSTHROUGH:
2031 /* Check mf->PassthruFlags to determine if
2032 * transfer is ImmediateMode or not.
2033 * Immediate mode returns data in the ReplyFrame.
2034 * Else, we are sending request and response data
2035 * in two SGLs at the end of the mf.
2036 */
2037 break;
2038
2039 case MPI_FUNCTION_SATA_PASSTHROUGH:
2040 if (!ioc->sh) {
2041 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
2042 "SCSI driver is not loaded. \n",
2043 ioc->name, __FILE__, __LINE__);
2044 rc = -EFAULT;
2045 goto done_free_mem;
2046 }
2047 break;
2048
2049 case MPI_FUNCTION_RAID_ACTION:
2050 /* Just add a SGE
2051 */
2052 break;
2053
2054 case MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
2055 if (ioc->sh) {
2056 SCSIIORequest_t *pScsiReq = (SCSIIORequest_t *) mf;
2057 int qtag = MPI_SCSIIO_CONTROL_SIMPLEQ;
2058 int scsidir = MPI_SCSIIO_CONTROL_READ;
2059 int dataSize;
2060
2061 pScsiReq->MsgFlags &= ~MPI_SCSIIO_MSGFLGS_SENSE_WIDTH;
2062 pScsiReq->MsgFlags |= mpt_msg_flags(ioc);
2063
2064
2065 /* verify that app has not requested
2066 * more sense data than driver
2067 * can provide, if so, reset this parameter
2068 * set the sense buffer pointer low address
2069 * update the control field to specify Q type
2070 */
2071 if (karg.maxSenseBytes > MPT_SENSE_BUFFER_SIZE)
2072 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
2073 else
2074 pScsiReq->SenseBufferLength = karg.maxSenseBytes;
2075
2076 pScsiReq->SenseBufferLowAddr =
2077 cpu_to_le32(ioc->sense_buf_low_dma
2078 + (req_idx * MPT_SENSE_BUFFER_ALLOC));
2079
2080 /* All commands to physical devices are tagged
2081 */
2082
2083 /* Have the IOCTL driver set the direction based
2084 * on the dataOutSize (ordering issue with Sparc).
2085 */
2086 if (karg.dataOutSize > 0) {
2087 scsidir = MPI_SCSIIO_CONTROL_WRITE;
2088 dataSize = karg.dataOutSize;
2089 } else {
2090 scsidir = MPI_SCSIIO_CONTROL_READ;
2091 dataSize = karg.dataInSize;
2092 }
2093
2094 pScsiReq->Control = cpu_to_le32(scsidir | qtag);
2095 pScsiReq->DataLength = cpu_to_le32(dataSize);
2096
2097 } else {
2098 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
2099 "SCSI driver is not loaded. \n",
2100 ioc->name, __FILE__, __LINE__);
2101 rc = -EFAULT;
2102 goto done_free_mem;
2103 }
2104 break;
2105
2106 case MPI_FUNCTION_SCSI_TASK_MGMT:
2107 {
2108 SCSITaskMgmt_t *pScsiTm;
2109 pScsiTm = (SCSITaskMgmt_t *)mf;
2110 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2111 "\tTaskType=0x%x MsgFlags=0x%x "
2112 "TaskMsgContext=0x%x id=%d channel=%d\n",
2113 ioc->name, pScsiTm->TaskType, le32_to_cpu
2114 (pScsiTm->TaskMsgContext), pScsiTm->MsgFlags,
2115 pScsiTm->TargetID, pScsiTm->Bus));
2116 break;
2117 }
2118
2119 case MPI_FUNCTION_IOC_INIT:
2120 {
2121 IOCInit_t *pInit = (IOCInit_t *) mf;
2122 u32 high_addr, sense_high;
2123
2124 /* Verify that all entries in the IOC INIT match
2125 * existing setup (and in LE format).
2126 */
2127 if (sizeof(dma_addr_t) == sizeof(u64)) {
2128 high_addr = cpu_to_le32((u32)((u64)ioc->req_frames_dma >> 32));
2129 sense_high= cpu_to_le32((u32)((u64)ioc->sense_buf_pool_dma >> 32));
2130 } else {
2131 high_addr = 0;
2132 sense_high= 0;
2133 }
2134
2135 if ((pInit->Flags != 0) || (pInit->MaxDevices != ioc->facts.MaxDevices) ||
2136 (pInit->MaxBuses != ioc->facts.MaxBuses) ||
2137 (pInit->ReplyFrameSize != cpu_to_le16(ioc->reply_sz)) ||
2138 (pInit->HostMfaHighAddr != high_addr) ||
2139 (pInit->SenseBufferHighAddr != sense_high)) {
2140 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
2141 "IOC_INIT issued with 1 or more incorrect parameters. Rejected.\n",
2142 ioc->name, __FILE__, __LINE__);
2143 rc = -EFAULT;
2144 goto done_free_mem;
2145 }
2146 }
2147 break;
2148 default:
2149 /*
2150 * MPI_FUNCTION_PORT_ENABLE
2151 * MPI_FUNCTION_TARGET_CMD_BUFFER_POST
2152 * MPI_FUNCTION_TARGET_ASSIST
2153 * MPI_FUNCTION_TARGET_STATUS_SEND
2154 * MPI_FUNCTION_TARGET_MODE_ABORT
2155 * MPI_FUNCTION_IOC_MESSAGE_UNIT_RESET
2156 * MPI_FUNCTION_IO_UNIT_RESET
2157 * MPI_FUNCTION_HANDSHAKE
2158 * MPI_FUNCTION_REPLY_FRAME_REMOVAL
2159 * MPI_FUNCTION_EVENT_NOTIFICATION
2160 * (driver handles event notification)
2161 * MPI_FUNCTION_EVENT_ACK
2162 */
2163
2164 /* What to do with these??? CHECK ME!!!
2165 MPI_FUNCTION_FC_LINK_SRVC_BUF_POST
2166 MPI_FUNCTION_FC_LINK_SRVC_RSP
2167 MPI_FUNCTION_FC_ABORT
2168 MPI_FUNCTION_LAN_SEND
2169 MPI_FUNCTION_LAN_RECEIVE
2170 MPI_FUNCTION_LAN_RESET
2171 */
2172
2173 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
2174 "Illegal request (function 0x%x) \n",
2175 ioc->name, __FILE__, __LINE__, hdr->Function);
2176 rc = -EFAULT;
2177 goto done_free_mem;
2178 }
2179
2180 /* Add the SGL ( at most one data in SGE and one data out SGE )
2181 * In the case of two SGE's - the data out (write) will always
2182 * preceede the data in (read) SGE. psgList is used to free the
2183 * allocated memory.
2184 */
2185 psge = (char *) (((int *) mf) + karg.dataSgeOffset);
2186 flagsLength = 0;
2187
2188 if (karg.dataOutSize > 0)
2189 sgSize ++;
2190
2191 if (karg.dataInSize > 0)
2192 sgSize ++;
2193
2194 if (sgSize > 0) {
2195
2196 /* Set up the dataOut memory allocation */
2197 if (karg.dataOutSize > 0) {
2198 if (karg.dataInSize > 0) {
2199 flagsLength = ( MPI_SGE_FLAGS_SIMPLE_ELEMENT |
2200 MPI_SGE_FLAGS_END_OF_BUFFER |
2201 MPI_SGE_FLAGS_DIRECTION)
2202 << MPI_SGE_FLAGS_SHIFT;
2203 } else {
2204 flagsLength = MPT_SGE_FLAGS_SSIMPLE_WRITE;
2205 }
2206 flagsLength |= karg.dataOutSize;
2207 bufOut.len = karg.dataOutSize;
2208 bufOut.kptr = pci_alloc_consistent(
2209 ioc->pcidev, bufOut.len, &dma_addr_out);
2210
2211 if (bufOut.kptr == NULL) {
2212 rc = -ENOMEM;
2213 goto done_free_mem;
2214 } else {
2215 /* Set up this SGE.
2216 * Copy to MF and to sglbuf
2217 */
2218 ioc->add_sge(psge, flagsLength, dma_addr_out);
2219 psge += ioc->SGE_size;
2220
2221 /* Copy user data to kernel space.
2222 */
2223 if (copy_from_user(bufOut.kptr,
2224 karg.dataOutBufPtr,
2225 bufOut.len)) {
2226 printk(MYIOC_s_ERR_FMT
2227 "%s@%d::mptctl_do_mpt_command - Unable "
2228 "to read user data "
2229 "struct @ %p\n",
2230 ioc->name, __FILE__, __LINE__,karg.dataOutBufPtr);
2231 rc = -EFAULT;
2232 goto done_free_mem;
2233 }
2234 }
2235 }
2236
2237 if (karg.dataInSize > 0) {
2238 flagsLength = MPT_SGE_FLAGS_SSIMPLE_READ;
2239 flagsLength |= karg.dataInSize;
2240
2241 bufIn.len = karg.dataInSize;
2242 bufIn.kptr = pci_alloc_consistent(ioc->pcidev,
2243 bufIn.len, &dma_addr_in);
2244
2245 if (bufIn.kptr == NULL) {
2246 rc = -ENOMEM;
2247 goto done_free_mem;
2248 } else {
2249 /* Set up this SGE
2250 * Copy to MF and to sglbuf
2251 */
2252 ioc->add_sge(psge, flagsLength, dma_addr_in);
2253 }
2254 }
2255 } else {
2256 /* Add a NULL SGE
2257 */
2258 ioc->add_sge(psge, flagsLength, (dma_addr_t) -1);
2259 }
2260
2261 SET_MGMT_MSG_CONTEXT(ioc->ioctl_cmds.msg_context, hdr->MsgContext);
2262 INITIALIZE_MGMT_STATUS(ioc->ioctl_cmds.status)
2263 if (hdr->Function == MPI_FUNCTION_SCSI_TASK_MGMT) {
2264
2265 mutex_lock(&ioc->taskmgmt_cmds.mutex);
2266 if (mpt_set_taskmgmt_in_progress_flag(ioc) != 0) {
2267 mutex_unlock(&ioc->taskmgmt_cmds.mutex);
2268 goto done_free_mem;
2269 }
2270
2271 DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)mf);
2272
2273 if ((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) &&
2274 (ioc->facts.MsgVersion >= MPI_VERSION_01_05))
2275 mpt_put_msg_frame_hi_pri(mptctl_id, ioc, mf);
2276 else {
2277 rc =mpt_send_handshake_request(mptctl_id, ioc,
2278 sizeof(SCSITaskMgmt_t), (u32*)mf, CAN_SLEEP);
2279 if (rc != 0) {
2280 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
2281 "send_handshake FAILED! (ioc %p, mf %p)\n",
2282 ioc->name, ioc, mf));
2283 mpt_clear_taskmgmt_in_progress_flag(ioc);
2284 rc = -ENODATA;
2285 mutex_unlock(&ioc->taskmgmt_cmds.mutex);
2286 goto done_free_mem;
2287 }
2288 }
2289
2290 } else
2291 mpt_put_msg_frame(mptctl_id, ioc, mf);
2292
2293 /* Now wait for the command to complete */
2294 timeout = (karg.timeout > 0) ? karg.timeout : MPT_IOCTL_DEFAULT_TIMEOUT;
2295 retry_wait:
2296 timeleft = wait_for_completion_timeout(&ioc->ioctl_cmds.done,
2297 HZ*timeout);
2298 if (!(ioc->ioctl_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
2299 rc = -ETIME;
2300 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "%s: TIMED OUT!\n",
2301 ioc->name, __func__));
2302 if (ioc->ioctl_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) {
2303 if (function == MPI_FUNCTION_SCSI_TASK_MGMT)
2304 mutex_unlock(&ioc->taskmgmt_cmds.mutex);
2305 goto done_free_mem;
2306 }
2307 if (!timeleft) {
2308 printk(MYIOC_s_WARN_FMT
2309 "mpt cmd timeout, doorbell=0x%08x"
2310 " function=0x%x\n",
2311 ioc->name, mpt_GetIocState(ioc, 0), function);
2312 if (function == MPI_FUNCTION_SCSI_TASK_MGMT)
2313 mutex_unlock(&ioc->taskmgmt_cmds.mutex);
2314 mptctl_timeout_expired(ioc, mf);
2315 mf = NULL;
2316 } else
2317 goto retry_wait;
2318 goto done_free_mem;
2319 }
2320
2321 if (function == MPI_FUNCTION_SCSI_TASK_MGMT)
2322 mutex_unlock(&ioc->taskmgmt_cmds.mutex);
2323
2324
2325 mf = NULL;
2326
2327 /* If a valid reply frame, copy to the user.
2328 * Offset 2: reply length in U32's
2329 */
2330 if (ioc->ioctl_cmds.status & MPT_MGMT_STATUS_RF_VALID) {
2331 if (karg.maxReplyBytes < ioc->reply_sz) {
2332 sz = min(karg.maxReplyBytes,
2333 4*ioc->ioctl_cmds.reply[2]);
2334 } else {
2335 sz = min(ioc->reply_sz, 4*ioc->ioctl_cmds.reply[2]);
2336 }
2337 if (sz > 0) {
2338 if (copy_to_user(karg.replyFrameBufPtr,
2339 ioc->ioctl_cmds.reply, sz)){
2340 printk(MYIOC_s_ERR_FMT
2341 "%s@%d::mptctl_do_mpt_command - "
2342 "Unable to write out reply frame %p\n",
2343 ioc->name, __FILE__, __LINE__, karg.replyFrameBufPtr);
2344 rc = -ENODATA;
2345 goto done_free_mem;
2346 }
2347 }
2348 }
2349
2350 /* If valid sense data, copy to user.
2351 */
2352 if (ioc->ioctl_cmds.status & MPT_MGMT_STATUS_SENSE_VALID) {
2353 sz = min(karg.maxSenseBytes, MPT_SENSE_BUFFER_SIZE);
2354 if (sz > 0) {
2355 if (copy_to_user(karg.senseDataPtr,
2356 ioc->ioctl_cmds.sense, sz)) {
2357 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
2358 "Unable to write sense data to user %p\n",
2359 ioc->name, __FILE__, __LINE__,
2360 karg.senseDataPtr);
2361 rc = -ENODATA;
2362 goto done_free_mem;
2363 }
2364 }
2365 }
2366
2367 /* If the overall status is _GOOD and data in, copy data
2368 * to user.
2369 */
2370 if ((ioc->ioctl_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD) &&
2371 (karg.dataInSize > 0) && (bufIn.kptr)) {
2372
2373 if (copy_to_user(karg.dataInBufPtr,
2374 bufIn.kptr, karg.dataInSize)) {
2375 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
2376 "Unable to write data to user %p\n",
2377 ioc->name, __FILE__, __LINE__,
2378 karg.dataInBufPtr);
2379 rc = -ENODATA;
2380 }
2381 }
2382
2383 done_free_mem:
2384
2385 CLEAR_MGMT_STATUS(ioc->ioctl_cmds.status)
2386 SET_MGMT_MSG_CONTEXT(ioc->ioctl_cmds.msg_context, 0);
2387
2388 /* Free the allocated memory.
2389 */
2390 if (bufOut.kptr != NULL) {
2391 pci_free_consistent(ioc->pcidev,
2392 bufOut.len, (void *) bufOut.kptr, dma_addr_out);
2393 }
2394
2395 if (bufIn.kptr != NULL) {
2396 pci_free_consistent(ioc->pcidev,
2397 bufIn.len, (void *) bufIn.kptr, dma_addr_in);
2398 }
2399
2400 /* mf is null if command issued successfully
2401 * otherwise, failure occurred after mf acquired.
2402 */
2403 if (mf)
2404 mpt_free_msg_frame(ioc, mf);
2405
2406 return rc;
2407 }
2408
2409 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2410 /* Prototype Routine for the HOST INFO command.
2411 *
2412 * Outputs: None.
2413 * Return: 0 if successful
2414 * -EFAULT if data unavailable
2415 * -EBUSY if previous command timeout and IOC reset is not complete.
2416 * -ENODEV if no such device/adapter
2417 * -ETIME if timer expires
2418 * -ENOMEM if memory allocation error
2419 */
2420 static int
mptctl_hp_hostinfo(unsigned long arg,unsigned int data_size)2421 mptctl_hp_hostinfo(unsigned long arg, unsigned int data_size)
2422 {
2423 hp_host_info_t __user *uarg = (void __user *) arg;
2424 MPT_ADAPTER *ioc;
2425 struct pci_dev *pdev;
2426 char *pbuf=NULL;
2427 dma_addr_t buf_dma;
2428 hp_host_info_t karg;
2429 CONFIGPARMS cfg;
2430 ConfigPageHeader_t hdr;
2431 int iocnum;
2432 int rc, cim_rev;
2433 ToolboxIstwiReadWriteRequest_t *IstwiRWRequest;
2434 MPT_FRAME_HDR *mf = NULL;
2435 MPIHeader_t *mpi_hdr;
2436 unsigned long timeleft;
2437 int retval;
2438
2439 /* Reset long to int. Should affect IA64 and SPARC only
2440 */
2441 if (data_size == sizeof(hp_host_info_t))
2442 cim_rev = 1;
2443 else if (data_size == sizeof(hp_host_info_rev0_t))
2444 cim_rev = 0; /* obsolete */
2445 else
2446 return -EFAULT;
2447
2448 if (copy_from_user(&karg, uarg, sizeof(hp_host_info_t))) {
2449 printk(KERN_ERR MYNAM "%s@%d::mptctl_hp_host_info - "
2450 "Unable to read in hp_host_info struct @ %p\n",
2451 __FILE__, __LINE__, uarg);
2452 return -EFAULT;
2453 }
2454
2455 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
2456 (ioc == NULL)) {
2457 printk(KERN_DEBUG MYNAM "%s::mptctl_hp_hostinfo() @%d - ioc%d not found!\n",
2458 __FILE__, __LINE__, iocnum);
2459 return -ENODEV;
2460 }
2461 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT ": mptctl_hp_hostinfo called.\n",
2462 ioc->name));
2463
2464 /* Fill in the data and return the structure to the calling
2465 * program
2466 */
2467 pdev = (struct pci_dev *) ioc->pcidev;
2468
2469 karg.vendor = pdev->vendor;
2470 karg.device = pdev->device;
2471 karg.subsystem_id = pdev->subsystem_device;
2472 karg.subsystem_vendor = pdev->subsystem_vendor;
2473 karg.devfn = pdev->devfn;
2474 karg.bus = pdev->bus->number;
2475
2476 /* Save the SCSI host no. if
2477 * SCSI driver loaded
2478 */
2479 if (ioc->sh != NULL)
2480 karg.host_no = ioc->sh->host_no;
2481 else
2482 karg.host_no = -1;
2483
2484 /* Reformat the fw_version into a string
2485 */
2486 karg.fw_version[0] = ioc->facts.FWVersion.Struct.Major >= 10 ?
2487 ((ioc->facts.FWVersion.Struct.Major / 10) + '0') : '0';
2488 karg.fw_version[1] = (ioc->facts.FWVersion.Struct.Major % 10 ) + '0';
2489 karg.fw_version[2] = '.';
2490 karg.fw_version[3] = ioc->facts.FWVersion.Struct.Minor >= 10 ?
2491 ((ioc->facts.FWVersion.Struct.Minor / 10) + '0') : '0';
2492 karg.fw_version[4] = (ioc->facts.FWVersion.Struct.Minor % 10 ) + '0';
2493 karg.fw_version[5] = '.';
2494 karg.fw_version[6] = ioc->facts.FWVersion.Struct.Unit >= 10 ?
2495 ((ioc->facts.FWVersion.Struct.Unit / 10) + '0') : '0';
2496 karg.fw_version[7] = (ioc->facts.FWVersion.Struct.Unit % 10 ) + '0';
2497 karg.fw_version[8] = '.';
2498 karg.fw_version[9] = ioc->facts.FWVersion.Struct.Dev >= 10 ?
2499 ((ioc->facts.FWVersion.Struct.Dev / 10) + '0') : '0';
2500 karg.fw_version[10] = (ioc->facts.FWVersion.Struct.Dev % 10 ) + '0';
2501 karg.fw_version[11] = '\0';
2502
2503 /* Issue a config request to get the device serial number
2504 */
2505 hdr.PageVersion = 0;
2506 hdr.PageLength = 0;
2507 hdr.PageNumber = 0;
2508 hdr.PageType = MPI_CONFIG_PAGETYPE_MANUFACTURING;
2509 cfg.cfghdr.hdr = &hdr;
2510 cfg.physAddr = -1;
2511 cfg.pageAddr = 0;
2512 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
2513 cfg.dir = 0; /* read */
2514 cfg.timeout = 10;
2515
2516 strncpy(karg.serial_number, " ", 24);
2517 if (mpt_config(ioc, &cfg) == 0) {
2518 if (cfg.cfghdr.hdr->PageLength > 0) {
2519 /* Issue the second config page request */
2520 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
2521
2522 pbuf = pci_alloc_consistent(ioc->pcidev, hdr.PageLength * 4, &buf_dma);
2523 if (pbuf) {
2524 cfg.physAddr = buf_dma;
2525 if (mpt_config(ioc, &cfg) == 0) {
2526 ManufacturingPage0_t *pdata = (ManufacturingPage0_t *) pbuf;
2527 if (strlen(pdata->BoardTracerNumber) > 1) {
2528 strncpy(karg.serial_number, pdata->BoardTracerNumber, 24);
2529 karg.serial_number[24-1]='\0';
2530 }
2531 }
2532 pci_free_consistent(ioc->pcidev, hdr.PageLength * 4, pbuf, buf_dma);
2533 pbuf = NULL;
2534 }
2535 }
2536 }
2537 rc = mpt_GetIocState(ioc, 1);
2538 switch (rc) {
2539 case MPI_IOC_STATE_OPERATIONAL:
2540 karg.ioc_status = HP_STATUS_OK;
2541 break;
2542
2543 case MPI_IOC_STATE_FAULT:
2544 karg.ioc_status = HP_STATUS_FAILED;
2545 break;
2546
2547 case MPI_IOC_STATE_RESET:
2548 case MPI_IOC_STATE_READY:
2549 default:
2550 karg.ioc_status = HP_STATUS_OTHER;
2551 break;
2552 }
2553
2554 karg.base_io_addr = pci_resource_start(pdev, 0);
2555
2556 if ((ioc->bus_type == SAS) || (ioc->bus_type == FC))
2557 karg.bus_phys_width = HP_BUS_WIDTH_UNK;
2558 else
2559 karg.bus_phys_width = HP_BUS_WIDTH_16;
2560
2561 karg.hard_resets = 0;
2562 karg.soft_resets = 0;
2563 karg.timeouts = 0;
2564 if (ioc->sh != NULL) {
2565 MPT_SCSI_HOST *hd = shost_priv(ioc->sh);
2566
2567 if (hd && (cim_rev == 1)) {
2568 karg.hard_resets = ioc->hard_resets;
2569 karg.soft_resets = ioc->soft_resets;
2570 karg.timeouts = ioc->timeouts;
2571 }
2572 }
2573
2574 /*
2575 * Gather ISTWI(Industry Standard Two Wire Interface) Data
2576 */
2577 if ((mf = mpt_get_msg_frame(mptctl_id, ioc)) == NULL) {
2578 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT
2579 "%s, no msg frames!!\n", ioc->name, __func__));
2580 goto out;
2581 }
2582
2583 IstwiRWRequest = (ToolboxIstwiReadWriteRequest_t *)mf;
2584 mpi_hdr = (MPIHeader_t *) mf;
2585 memset(IstwiRWRequest,0,sizeof(ToolboxIstwiReadWriteRequest_t));
2586 IstwiRWRequest->Function = MPI_FUNCTION_TOOLBOX;
2587 IstwiRWRequest->Tool = MPI_TOOLBOX_ISTWI_READ_WRITE_TOOL;
2588 IstwiRWRequest->MsgContext = mpi_hdr->MsgContext;
2589 IstwiRWRequest->Flags = MPI_TB_ISTWI_FLAGS_READ;
2590 IstwiRWRequest->NumAddressBytes = 0x01;
2591 IstwiRWRequest->DataLength = cpu_to_le16(0x04);
2592 if (pdev->devfn & 1)
2593 IstwiRWRequest->DeviceAddr = 0xB2;
2594 else
2595 IstwiRWRequest->DeviceAddr = 0xB0;
2596
2597 pbuf = pci_alloc_consistent(ioc->pcidev, 4, &buf_dma);
2598 if (!pbuf)
2599 goto out;
2600 ioc->add_sge((char *)&IstwiRWRequest->SGL,
2601 (MPT_SGE_FLAGS_SSIMPLE_READ|4), buf_dma);
2602
2603 retval = 0;
2604 SET_MGMT_MSG_CONTEXT(ioc->ioctl_cmds.msg_context,
2605 IstwiRWRequest->MsgContext);
2606 INITIALIZE_MGMT_STATUS(ioc->ioctl_cmds.status)
2607 mpt_put_msg_frame(mptctl_id, ioc, mf);
2608
2609 retry_wait:
2610 timeleft = wait_for_completion_timeout(&ioc->ioctl_cmds.done,
2611 HZ*MPT_IOCTL_DEFAULT_TIMEOUT);
2612 if (!(ioc->ioctl_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
2613 retval = -ETIME;
2614 printk(MYIOC_s_WARN_FMT "%s: failed\n", ioc->name, __func__);
2615 if (ioc->ioctl_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) {
2616 mpt_free_msg_frame(ioc, mf);
2617 goto out;
2618 }
2619 if (!timeleft) {
2620 printk(MYIOC_s_WARN_FMT
2621 "HOST INFO command timeout, doorbell=0x%08x\n",
2622 ioc->name, mpt_GetIocState(ioc, 0));
2623 mptctl_timeout_expired(ioc, mf);
2624 } else
2625 goto retry_wait;
2626 goto out;
2627 }
2628
2629 /*
2630 *ISTWI Data Definition
2631 * pbuf[0] = FW_VERSION = 0x4
2632 * pbuf[1] = Bay Count = 6 or 4 or 2, depending on
2633 * the config, you should be seeing one out of these three values
2634 * pbuf[2] = Drive Installed Map = bit pattern depend on which
2635 * bays have drives in them
2636 * pbuf[3] = Checksum (0x100 = (byte0 + byte2 + byte3)
2637 */
2638 if (ioc->ioctl_cmds.status & MPT_MGMT_STATUS_RF_VALID)
2639 karg.rsvd = *(u32 *)pbuf;
2640
2641 out:
2642 CLEAR_MGMT_STATUS(ioc->ioctl_cmds.status)
2643 SET_MGMT_MSG_CONTEXT(ioc->ioctl_cmds.msg_context, 0);
2644
2645 if (pbuf)
2646 pci_free_consistent(ioc->pcidev, 4, pbuf, buf_dma);
2647
2648 /* Copy the data from kernel memory to user memory
2649 */
2650 if (copy_to_user((char __user *)arg, &karg, sizeof(hp_host_info_t))) {
2651 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_hpgethostinfo - "
2652 "Unable to write out hp_host_info @ %p\n",
2653 ioc->name, __FILE__, __LINE__, uarg);
2654 return -EFAULT;
2655 }
2656
2657 return 0;
2658
2659 }
2660
2661 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2662 /* Prototype Routine for the TARGET INFO command.
2663 *
2664 * Outputs: None.
2665 * Return: 0 if successful
2666 * -EFAULT if data unavailable
2667 * -EBUSY if previous command timeout and IOC reset is not complete.
2668 * -ENODEV if no such device/adapter
2669 * -ETIME if timer expires
2670 * -ENOMEM if memory allocation error
2671 */
2672 static int
mptctl_hp_targetinfo(unsigned long arg)2673 mptctl_hp_targetinfo(unsigned long arg)
2674 {
2675 hp_target_info_t __user *uarg = (void __user *) arg;
2676 SCSIDevicePage0_t *pg0_alloc;
2677 SCSIDevicePage3_t *pg3_alloc;
2678 MPT_ADAPTER *ioc;
2679 MPT_SCSI_HOST *hd = NULL;
2680 hp_target_info_t karg;
2681 int iocnum;
2682 int data_sz;
2683 dma_addr_t page_dma;
2684 CONFIGPARMS cfg;
2685 ConfigPageHeader_t hdr;
2686 int tmp, np, rc = 0;
2687
2688 if (copy_from_user(&karg, uarg, sizeof(hp_target_info_t))) {
2689 printk(KERN_ERR MYNAM "%s@%d::mptctl_hp_targetinfo - "
2690 "Unable to read in hp_host_targetinfo struct @ %p\n",
2691 __FILE__, __LINE__, uarg);
2692 return -EFAULT;
2693 }
2694
2695 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
2696 (ioc == NULL)) {
2697 printk(KERN_DEBUG MYNAM "%s::mptctl_hp_targetinfo() @%d - ioc%d not found!\n",
2698 __FILE__, __LINE__, iocnum);
2699 return -ENODEV;
2700 }
2701 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_hp_targetinfo called.\n",
2702 ioc->name));
2703
2704 /* There is nothing to do for FCP parts.
2705 */
2706 if ((ioc->bus_type == SAS) || (ioc->bus_type == FC))
2707 return 0;
2708
2709 if ((ioc->spi_data.sdp0length == 0) || (ioc->sh == NULL))
2710 return 0;
2711
2712 if (ioc->sh->host_no != karg.hdr.host)
2713 return -ENODEV;
2714
2715 /* Get the data transfer speeds
2716 */
2717 data_sz = ioc->spi_data.sdp0length * 4;
2718 pg0_alloc = (SCSIDevicePage0_t *) pci_alloc_consistent(ioc->pcidev, data_sz, &page_dma);
2719 if (pg0_alloc) {
2720 hdr.PageVersion = ioc->spi_data.sdp0version;
2721 hdr.PageLength = data_sz;
2722 hdr.PageNumber = 0;
2723 hdr.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE;
2724
2725 cfg.cfghdr.hdr = &hdr;
2726 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
2727 cfg.dir = 0;
2728 cfg.timeout = 0;
2729 cfg.physAddr = page_dma;
2730
2731 cfg.pageAddr = (karg.hdr.channel << 8) | karg.hdr.id;
2732
2733 if ((rc = mpt_config(ioc, &cfg)) == 0) {
2734 np = le32_to_cpu(pg0_alloc->NegotiatedParameters);
2735 karg.negotiated_width = np & MPI_SCSIDEVPAGE0_NP_WIDE ?
2736 HP_BUS_WIDTH_16 : HP_BUS_WIDTH_8;
2737
2738 if (np & MPI_SCSIDEVPAGE0_NP_NEG_SYNC_OFFSET_MASK) {
2739 tmp = (np & MPI_SCSIDEVPAGE0_NP_NEG_SYNC_PERIOD_MASK) >> 8;
2740 if (tmp < 0x09)
2741 karg.negotiated_speed = HP_DEV_SPEED_ULTRA320;
2742 else if (tmp <= 0x09)
2743 karg.negotiated_speed = HP_DEV_SPEED_ULTRA160;
2744 else if (tmp <= 0x0A)
2745 karg.negotiated_speed = HP_DEV_SPEED_ULTRA2;
2746 else if (tmp <= 0x0C)
2747 karg.negotiated_speed = HP_DEV_SPEED_ULTRA;
2748 else if (tmp <= 0x25)
2749 karg.negotiated_speed = HP_DEV_SPEED_FAST;
2750 else
2751 karg.negotiated_speed = HP_DEV_SPEED_ASYNC;
2752 } else
2753 karg.negotiated_speed = HP_DEV_SPEED_ASYNC;
2754 }
2755
2756 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) pg0_alloc, page_dma);
2757 }
2758
2759 /* Set defaults
2760 */
2761 karg.message_rejects = -1;
2762 karg.phase_errors = -1;
2763 karg.parity_errors = -1;
2764 karg.select_timeouts = -1;
2765
2766 /* Get the target error parameters
2767 */
2768 hdr.PageVersion = 0;
2769 hdr.PageLength = 0;
2770 hdr.PageNumber = 3;
2771 hdr.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE;
2772
2773 cfg.cfghdr.hdr = &hdr;
2774 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
2775 cfg.dir = 0;
2776 cfg.timeout = 0;
2777 cfg.physAddr = -1;
2778 if ((mpt_config(ioc, &cfg) == 0) && (cfg.cfghdr.hdr->PageLength > 0)) {
2779 /* Issue the second config page request */
2780 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
2781 data_sz = (int) cfg.cfghdr.hdr->PageLength * 4;
2782 pg3_alloc = (SCSIDevicePage3_t *) pci_alloc_consistent(
2783 ioc->pcidev, data_sz, &page_dma);
2784 if (pg3_alloc) {
2785 cfg.physAddr = page_dma;
2786 cfg.pageAddr = (karg.hdr.channel << 8) | karg.hdr.id;
2787 if ((rc = mpt_config(ioc, &cfg)) == 0) {
2788 karg.message_rejects = (u32) le16_to_cpu(pg3_alloc->MsgRejectCount);
2789 karg.phase_errors = (u32) le16_to_cpu(pg3_alloc->PhaseErrorCount);
2790 karg.parity_errors = (u32) le16_to_cpu(pg3_alloc->ParityErrorCount);
2791 }
2792 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) pg3_alloc, page_dma);
2793 }
2794 }
2795 hd = shost_priv(ioc->sh);
2796 if (hd != NULL)
2797 karg.select_timeouts = hd->sel_timeout[karg.hdr.id];
2798
2799 /* Copy the data from kernel memory to user memory
2800 */
2801 if (copy_to_user((char __user *)arg, &karg, sizeof(hp_target_info_t))) {
2802 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_hp_target_info - "
2803 "Unable to write out mpt_ioctl_targetinfo struct @ %p\n",
2804 ioc->name, __FILE__, __LINE__, uarg);
2805 return -EFAULT;
2806 }
2807
2808 return 0;
2809 }
2810
2811 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2812
2813 static const struct file_operations mptctl_fops = {
2814 .owner = THIS_MODULE,
2815 .llseek = no_llseek,
2816 .fasync = mptctl_fasync,
2817 .unlocked_ioctl = mptctl_ioctl,
2818 #ifdef CONFIG_COMPAT
2819 .compat_ioctl = compat_mpctl_ioctl,
2820 #endif
2821 };
2822
2823 static struct miscdevice mptctl_miscdev = {
2824 MPT_MINOR,
2825 MYNAM,
2826 &mptctl_fops
2827 };
2828
2829 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2830
2831 #ifdef CONFIG_COMPAT
2832
2833 static int
compat_mptfwxfer_ioctl(struct file * filp,unsigned int cmd,unsigned long arg)2834 compat_mptfwxfer_ioctl(struct file *filp, unsigned int cmd,
2835 unsigned long arg)
2836 {
2837 struct mpt_fw_xfer32 kfw32;
2838 struct mpt_fw_xfer kfw;
2839 MPT_ADAPTER *iocp = NULL;
2840 int iocnum, iocnumX;
2841 int nonblock = (filp->f_flags & O_NONBLOCK);
2842 int ret;
2843
2844
2845 if (copy_from_user(&kfw32, (char __user *)arg, sizeof(kfw32)))
2846 return -EFAULT;
2847
2848 /* Verify intended MPT adapter */
2849 iocnumX = kfw32.iocnum & 0xFF;
2850 if (((iocnum = mpt_verify_adapter(iocnumX, &iocp)) < 0) ||
2851 (iocp == NULL)) {
2852 printk(KERN_DEBUG MYNAM "::compat_mptfwxfer_ioctl @%d - ioc%d not found!\n",
2853 __LINE__, iocnumX);
2854 return -ENODEV;
2855 }
2856
2857 if ((ret = mptctl_syscall_down(iocp, nonblock)) != 0)
2858 return ret;
2859
2860 dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT "compat_mptfwxfer_ioctl() called\n",
2861 iocp->name));
2862 kfw.iocnum = iocnum;
2863 kfw.fwlen = kfw32.fwlen;
2864 kfw.bufp = compat_ptr(kfw32.bufp);
2865
2866 ret = mptctl_do_fw_download(kfw.iocnum, kfw.bufp, kfw.fwlen);
2867
2868 mutex_unlock(&iocp->ioctl_cmds.mutex);
2869
2870 return ret;
2871 }
2872
2873 static int
compat_mpt_command(struct file * filp,unsigned int cmd,unsigned long arg)2874 compat_mpt_command(struct file *filp, unsigned int cmd,
2875 unsigned long arg)
2876 {
2877 struct mpt_ioctl_command32 karg32;
2878 struct mpt_ioctl_command32 __user *uarg = (struct mpt_ioctl_command32 __user *) arg;
2879 struct mpt_ioctl_command karg;
2880 MPT_ADAPTER *iocp = NULL;
2881 int iocnum, iocnumX;
2882 int nonblock = (filp->f_flags & O_NONBLOCK);
2883 int ret;
2884
2885 if (copy_from_user(&karg32, (char __user *)arg, sizeof(karg32)))
2886 return -EFAULT;
2887
2888 /* Verify intended MPT adapter */
2889 iocnumX = karg32.hdr.iocnum & 0xFF;
2890 if (((iocnum = mpt_verify_adapter(iocnumX, &iocp)) < 0) ||
2891 (iocp == NULL)) {
2892 printk(KERN_DEBUG MYNAM "::compat_mpt_command @%d - ioc%d not found!\n",
2893 __LINE__, iocnumX);
2894 return -ENODEV;
2895 }
2896
2897 if ((ret = mptctl_syscall_down(iocp, nonblock)) != 0)
2898 return ret;
2899
2900 dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT "compat_mpt_command() called\n",
2901 iocp->name));
2902 /* Copy data to karg */
2903 karg.hdr.iocnum = karg32.hdr.iocnum;
2904 karg.hdr.port = karg32.hdr.port;
2905 karg.timeout = karg32.timeout;
2906 karg.maxReplyBytes = karg32.maxReplyBytes;
2907
2908 karg.dataInSize = karg32.dataInSize;
2909 karg.dataOutSize = karg32.dataOutSize;
2910 karg.maxSenseBytes = karg32.maxSenseBytes;
2911 karg.dataSgeOffset = karg32.dataSgeOffset;
2912
2913 karg.replyFrameBufPtr = (char __user *)(unsigned long)karg32.replyFrameBufPtr;
2914 karg.dataInBufPtr = (char __user *)(unsigned long)karg32.dataInBufPtr;
2915 karg.dataOutBufPtr = (char __user *)(unsigned long)karg32.dataOutBufPtr;
2916 karg.senseDataPtr = (char __user *)(unsigned long)karg32.senseDataPtr;
2917
2918 /* Pass new structure to do_mpt_command
2919 */
2920 ret = mptctl_do_mpt_command (karg, &uarg->MF);
2921
2922 mutex_unlock(&iocp->ioctl_cmds.mutex);
2923
2924 return ret;
2925 }
2926
compat_mpctl_ioctl(struct file * f,unsigned int cmd,unsigned long arg)2927 static long compat_mpctl_ioctl(struct file *f, unsigned int cmd, unsigned long arg)
2928 {
2929 long ret;
2930 mutex_lock(&mpctl_mutex);
2931 switch (cmd) {
2932 case MPTIOCINFO:
2933 case MPTIOCINFO1:
2934 case MPTIOCINFO2:
2935 case MPTTARGETINFO:
2936 case MPTEVENTQUERY:
2937 case MPTEVENTENABLE:
2938 case MPTEVENTREPORT:
2939 case MPTHARDRESET:
2940 case HP_GETHOSTINFO:
2941 case HP_GETTARGETINFO:
2942 case MPTTEST:
2943 ret = __mptctl_ioctl(f, cmd, arg);
2944 break;
2945 case MPTCOMMAND32:
2946 ret = compat_mpt_command(f, cmd, arg);
2947 break;
2948 case MPTFWDOWNLOAD32:
2949 ret = compat_mptfwxfer_ioctl(f, cmd, arg);
2950 break;
2951 default:
2952 ret = -ENOIOCTLCMD;
2953 break;
2954 }
2955 mutex_unlock(&mpctl_mutex);
2956 return ret;
2957 }
2958
2959 #endif
2960
2961
2962 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2963 /*
2964 * mptctl_probe - Installs ioctl devices per bus.
2965 * @pdev: Pointer to pci_dev structure
2966 *
2967 * Returns 0 for success, non-zero for failure.
2968 *
2969 */
2970
2971 static int
mptctl_probe(struct pci_dev * pdev,const struct pci_device_id * id)2972 mptctl_probe(struct pci_dev *pdev, const struct pci_device_id *id)
2973 {
2974 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
2975
2976 mutex_init(&ioc->ioctl_cmds.mutex);
2977 init_completion(&ioc->ioctl_cmds.done);
2978 return 0;
2979 }
2980
2981 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2982 /*
2983 * mptctl_remove - Removed ioctl devices
2984 * @pdev: Pointer to pci_dev structure
2985 *
2986 *
2987 */
2988 static void
mptctl_remove(struct pci_dev * pdev)2989 mptctl_remove(struct pci_dev *pdev)
2990 {
2991 }
2992
2993 static struct mpt_pci_driver mptctl_driver = {
2994 .probe = mptctl_probe,
2995 .remove = mptctl_remove,
2996 };
2997
2998 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
mptctl_init(void)2999 static int __init mptctl_init(void)
3000 {
3001 int err;
3002 int where = 1;
3003
3004 show_mptmod_ver(my_NAME, my_VERSION);
3005
3006 mpt_device_driver_register(&mptctl_driver, MPTCTL_DRIVER);
3007
3008 /* Register this device */
3009 err = misc_register(&mptctl_miscdev);
3010 if (err < 0) {
3011 printk(KERN_ERR MYNAM ": Can't register misc device [minor=%d].\n", MPT_MINOR);
3012 goto out_fail;
3013 }
3014 printk(KERN_INFO MYNAM ": Registered with Fusion MPT base driver\n");
3015 printk(KERN_INFO MYNAM ": /dev/%s @ (major,minor=%d,%d)\n",
3016 mptctl_miscdev.name, MISC_MAJOR, mptctl_miscdev.minor);
3017
3018 /*
3019 * Install our handler
3020 */
3021 ++where;
3022 mptctl_id = mpt_register(mptctl_reply, MPTCTL_DRIVER,
3023 "mptctl_reply");
3024 if (!mptctl_id || mptctl_id >= MPT_MAX_PROTOCOL_DRIVERS) {
3025 printk(KERN_ERR MYNAM ": ERROR: Failed to register with Fusion MPT base driver\n");
3026 misc_deregister(&mptctl_miscdev);
3027 err = -EBUSY;
3028 goto out_fail;
3029 }
3030
3031 mptctl_taskmgmt_id = mpt_register(mptctl_taskmgmt_reply, MPTCTL_DRIVER,
3032 "mptctl_taskmgmt_reply");
3033 if (!mptctl_taskmgmt_id || mptctl_taskmgmt_id >= MPT_MAX_PROTOCOL_DRIVERS) {
3034 printk(KERN_ERR MYNAM ": ERROR: Failed to register with Fusion MPT base driver\n");
3035 mpt_deregister(mptctl_id);
3036 misc_deregister(&mptctl_miscdev);
3037 err = -EBUSY;
3038 goto out_fail;
3039 }
3040
3041 mpt_reset_register(mptctl_id, mptctl_ioc_reset);
3042 mpt_event_register(mptctl_id, mptctl_event_process);
3043
3044 return 0;
3045
3046 out_fail:
3047
3048 mpt_device_driver_deregister(MPTCTL_DRIVER);
3049
3050 return err;
3051 }
3052
3053 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
mptctl_exit(void)3054 static void mptctl_exit(void)
3055 {
3056 misc_deregister(&mptctl_miscdev);
3057 printk(KERN_INFO MYNAM ": Deregistered /dev/%s @ (major,minor=%d,%d)\n",
3058 mptctl_miscdev.name, MISC_MAJOR, mptctl_miscdev.minor);
3059
3060 /* De-register event handler from base module */
3061 mpt_event_deregister(mptctl_id);
3062
3063 /* De-register reset handler from base module */
3064 mpt_reset_deregister(mptctl_id);
3065
3066 /* De-register callback handler from base module */
3067 mpt_deregister(mptctl_taskmgmt_id);
3068 mpt_deregister(mptctl_id);
3069
3070 mpt_device_driver_deregister(MPTCTL_DRIVER);
3071
3072 }
3073
3074 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
3075
3076 module_init(mptctl_init);
3077 module_exit(mptctl_exit);
3078