sys/dev/hptmv/hptproc.c

   1 /*
   2  * Copyright (c) 2004-2005 HighPoint Technologies, Inc.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  *
  26  * $FreeBSD$
  27  */
  28 /*
  29  * hptproc.c  sysctl support
  30  */
  31 #include <sys/param.h>
  32 #include <sys/systm.h>
  33 #include <sys/kernel.h>
  34 #include <sys/malloc.h>
  35 #include <sys/sysctl.h>
  36 #include <machine/stdarg.h>
  37
  38 #ifndef __KERNEL__
  39 #define __KERNEL__
  40 #endif
  41
  42 #include <dev/hptmv/global.h>
  43 #include <dev/hptmv/hptintf.h>
  44 #include <dev/hptmv/osbsd.h>
  45 #include <dev/hptmv/access601.h>
  46
  47 int hpt_rescan_all(void);
  48
  49 /***************************************************************************/
  50
  51 static char hptproc_buffer[256];
  52 extern char DRIVER_VERSION[];
  53
  54 #define FORMAL_HANDLER_ARGS struct sysctl_oid *oidp, void *arg1,        \
  55         intptr_t arg2, struct sysctl_req *req
  56 #define REAL_HANDLER_ARGS oidp, arg1, arg2, req
  57 typedef struct sysctl_req HPT_GET_INFO;
  58
  59 static int
  60 hpt_set_asc_info(IAL_ADAPTER_T *pAdapter, char *buffer,int length)
  61 {
  62         int orig_length = length+4;
  63         PVBus _vbus_p = &pAdapter->VBus;
  64         PVDevice         pArray;
  65         PVDevice pSubArray, pVDev;
  66         UINT    i, iarray, ichan;
  67         struct cam_periph *periph = NULL;
  68         intrmask_t oldspl;
  69
  70 #ifdef SUPPORT_ARRAY
  71         if (length>=8 && strncmp(buffer, "rebuild ", 8)==0)
  72         {
  73                 buffer+=8;
  74                 length-=8;
  75                 if (length>=5 && strncmp(buffer, "start", 5)==0)
  76                 {
  77                         oldspl = lock_driver();
  78                         for(i = 0; i < MAX_ARRAY_PER_VBUS; i++)
  79                                 if ((pArray=ArrayTables(i))->u.array.dArStamp==0)
  80                                         continue;
  81                                 else{
  82                                         if (pArray->u.array.rf_need_rebuild && !pArray->u.array.rf_rebuilding)
  83                             hpt_queue_dpc((HPT_DPC)hpt_rebuild_data_block, pAdapter, pArray,
  84                                                         (UCHAR)((pArray->u.array.CriticalMembers || pArray->VDeviceType == VD_RAID_1)? DUPLICATE : REBUILD_PARITY));
  85                                 }
  86                         unlock_driver(oldspl);
  87                         return orig_length;
  88                 }
  89                 else if (length>=4 && strncmp(buffer, "stop", 4)==0)
  90                 {
  91                         oldspl = lock_driver();
  92                         for(i = 0; i < MAX_ARRAY_PER_VBUS; i++)
  93                                 if ((pArray=ArrayTables(i))->u.array.dArStamp==0)
  94                                         continue;
  95                                 else{
  96                                         if (pArray->u.array.rf_rebuilding)
  97                                             pArray->u.array.rf_abort_rebuild = 1;
  98                                 }
  99                         unlock_driver(oldspl);
 100                         return orig_length;
 101                 }
 102                 else if (length>=3 && buffer[1]==','&& buffer[0]>='1'&& buffer[2]>='1')
 103                 {
 104                         iarray = buffer[0]-'1';
 105                 ichan = buffer[2]-'1';
 106
 107             if(iarray >= MAX_VDEVICE_PER_VBUS || ichan >= MV_SATA_CHANNELS_NUM) return -EINVAL;
 108
 109                         pArray = _vbus_p->pVDevice[iarray];
 110                 if (!pArray || (pArray->vf_online == 0)) return -EINVAL;
 111
 112             for (i=0;i<MV_SATA_CHANNELS_NUM;i++)
 113                                 if(i == ichan)
 114                                     goto rebuild;
 115
 116                 return -EINVAL;
 117
 118 rebuild:
 119                 pVDev = &pAdapter->VDevices[ichan];
 120                 if(!pVDev->u.disk.df_on_line || pVDev->pParent) return -EINVAL;
 121
 122                 /* Not allow to use a mounted disk ??? test*/
 123                         for(i = 0; i < MAX_VDEVICE_PER_VBUS; i++)
 124                             if(pVDev == _vbus_p->pVDevice[i])
 125                             {
 126                                         periph = hpt_get_periph(pAdapter->mvSataAdapter.adapterId,i);
 127                                         if (periph != NULL && periph->refcount >= 1)
 128                                         {
 129                                                 hpt_printk(("Can not use disk used by OS!\n"));
 130                             return -EINVAL;
 131                                         }
 132                                         /* the Mounted Disk isn't delete */
 133                                 }
 134
 135                         switch(pArray->VDeviceType)
 136                         {
 137                                 case VD_RAID_1:
 138                                 case VD_RAID_5:
 139                                 {
 140                                         pSubArray = pArray;
 141 loop:
 142                                         oldspl = lock_driver();
 143                                         if(hpt_add_disk_to_array(_VBUS_P VDEV_TO_ID(pSubArray), VDEV_TO_ID(pVDev)) == -1) {
 144                                                 unlock_driver(oldspl);
 145                                                 return -EINVAL;
 146                                         }
 147                                         pSubArray->u.array.rf_auto_rebuild = 0;
 148                                         pSubArray->u.array.rf_abort_rebuild = 0;
 149                                         hpt_queue_dpc((HPT_DPC)hpt_rebuild_data_block, pAdapter, pSubArray, DUPLICATE);
 150                                         unlock_driver(oldspl);
 151                                         break;
 152                                 }
 153                                 case VD_RAID_0:
 154                                         for (i = 0; (UCHAR)i < pArray->u.array.bArnMember; i++)
 155                                                 if(pArray->u.array.pMember[i] && mIsArray(pArray->u.array.pMember[i]) &&
 156                                                    (pArray->u.array.pMember[i]->u.array.rf_broken == 1))
 157                                                 {
 158                                                           pSubArray = pArray->u.array.pMember[i];
 159                                                           goto loop;
 160                                                 }
 161                                 default:
 162                                         return -EINVAL;
 163                         }
 164                         return orig_length;
 165                 }
 166         }
 167         else if (length>=7 && strncmp(buffer, "verify ", 7)==0)
 168         {
 169                 buffer+=7;
 170                 length-=7;
 171         if (length>=6 && strncmp(buffer, "start ", 6)==0)
 172                 {
 173             buffer+=6;
 174                     length-=6;
 175             if (length>=1 && *buffer>='1')
 176                         {
 177                                 iarray = *buffer-'1';
 178                                 if(iarray >= MAX_VDEVICE_PER_VBUS) return -EINVAL;
 179
 180                                 pArray = _vbus_p->pVDevice[iarray];
 181                                 if (!pArray || (pArray->vf_online == 0)) return -EINVAL;
 182
 183                                 if(pArray->VDeviceType != VD_RAID_1 && pArray->VDeviceType != VD_RAID_5)
 184                                         return -EINVAL;
 185
 186                                 if (!(pArray->u.array.rf_need_rebuild ||
 187                                         pArray->u.array.rf_rebuilding ||
 188                                         pArray->u.array.rf_verifying ||
 189                                         pArray->u.array.rf_initializing))
 190                                 {
 191                                         oldspl = lock_driver();
 192                                         pArray->u.array.RebuildSectors = 0;
 193                                         hpt_queue_dpc((HPT_DPC)hpt_rebuild_data_block, pAdapter, pArray, VERIFY);
 194                                         unlock_driver(oldspl);
 195                                 }
 196                 return orig_length;
 197                         }
 198                 }
 199                 else if (length>=5 && strncmp(buffer, "stop ", 5)==0)
 200                 {
 201                         buffer+=5;
 202                     length-=5;
 203             if (length>=1 && *buffer>='1')
 204                         {
 205                                 iarray = *buffer-'1';
 206                                 if(iarray >= MAX_VDEVICE_PER_VBUS) return -EINVAL;
 207
 208                                 pArray = _vbus_p->pVDevice[iarray];
 209                                 if (!pArray || (pArray->vf_online == 0)) return -EINVAL;
 210                                 if(pArray->u.array.rf_verifying)
 211                                 {
 212                                         oldspl = lock_driver();
 213                                     pArray->u.array.rf_abort_rebuild = 1;
 214                                     unlock_driver(oldspl);
 215                                 }
 216                             return orig_length;
 217                         }
 218                 }
 219         }
 220         else
 221 #ifdef _RAID5N_
 222         if (length>=10 && strncmp(buffer, "writeback ", 10)==0) {
 223                 buffer+=10;
 224                 length-=10;
 225                 if (length>=1 && *buffer>='0' && *buffer<='1') {
 226                         _vbus_(r5.enable_write_back) = *buffer-'0';
 227                         if (_vbus_(r5.enable_write_back))
 228                                 hpt_printk(("RAID5 write back enabled"));
 229                         return orig_length;
 230                 }
 231         }
 232         else
 233 #endif
 234 #endif
 235         if (0) {} /* just to compile */
 236 #ifdef DEBUG
 237         else if (length>=9 && strncmp(buffer, "dbglevel ", 9)==0) {
 238                 buffer+=9;
 239                 length-=9;
 240                 if (length>=1 && *buffer>='0' && *buffer<='3') {
 241                         hpt_dbg_level = *buffer-'0';
 242                         return orig_length;
 243                 }
 244         }
 245         else if (length>=8 && strncmp(buffer, "disable ", 8)==0) {
 246                 /* TO DO */
 247         }
 248 #endif
 249
 250         return -EINVAL;
 251 }
 252
 253 /*
 254  * Since we have only one sysctl node, add adapter ID in the command
 255  * line string: e.g. "hpt 0 rebuild start"
 256  */
 257 static int
 258 hpt_set_info(int length)
 259 {
 260         int retval;
 261
 262 #ifdef SUPPORT_IOCTL
 263         PUCHAR ke_area;
 264         int err;
 265         DWORD dwRet;
 266         PHPT_IOCTL_PARAM piop;
 267 #endif
 268         char *buffer = hptproc_buffer;
 269         if (length >= 6) {
 270                 if (strncmp(buffer,"hpt ",4) == 0) {
 271                         IAL_ADAPTER_T *pAdapter;
 272                         retval = buffer[4]-'0';
 273                         for (pAdapter=gIal_Adapter; pAdapter; pAdapter=pAdapter->next) {
 274                                 if (pAdapter->mvSataAdapter.adapterId==retval)
 275                                         return (retval = hpt_set_asc_info(pAdapter, buffer+6, length-6)) >= 0? retval : -EINVAL;
 276                         }
 277                         return -EINVAL;
 278                 }
 279 #ifdef SUPPORT_IOCTL
 280                 piop = (PHPT_IOCTL_PARAM)buffer;
 281                 if (piop->Magic == HPT_IOCTL_MAGIC ||
 282                         piop->Magic == HPT_IOCTL_MAGIC32)       {
 283                         KdPrintE(("ioctl=%d in=%p len=%d out=%p len=%d\n",
 284                                 piop->dwIoControlCode,
 285                                 piop->lpInBuffer,
 286                                 piop->nInBufferSize,
 287                                 piop->lpOutBuffer,
 288                                 piop->nOutBufferSize));
 289
 290                         /*
 291                          * map buffer to kernel.
 292                          */
 293                         if (piop->nInBufferSize > PAGE_SIZE ||
 294                                 piop->nOutBufferSize > PAGE_SIZE ||
 295                                 piop->nInBufferSize+piop->nOutBufferSize > PAGE_SIZE) {
 296                                 KdPrintE(("User buffer too large\n"));
 297                                 return -EINVAL;
 298                         }
 299
 300                         ke_area = malloc(piop->nInBufferSize+piop->nOutBufferSize, M_DEVBUF, M_NOWAIT);
 301                                 if (ke_area == NULL) {
 302                                         KdPrintE(("Couldn't allocate kernel mem.\n"));
 303                                         return -EINVAL;
 304                                 }
 305
 306                         if (piop->nInBufferSize) {
 307                                 if (copyin((void*)(ULONG_PTR)piop->lpInBuffer, ke_area, piop->nInBufferSize) != 0) {
 308                                         KdPrintE(("Failed to copyin from lpInBuffer\n"));
 309                                         free(ke_area, M_DEVBUF);
 310                                         return -EFAULT;
 311                                 }
 312                         }
 313
 314                         /*
 315                           * call kernel handler.
 316                           */
 317                         err = Kernel_DeviceIoControl(&gIal_Adapter->VBus,
 318                                 piop->dwIoControlCode, ke_area, piop->nInBufferSize,
 319                                 ke_area + piop->nInBufferSize, piop->nOutBufferSize, &dwRet);
 320
 321                         if (err==0) {
 322                                 if (piop->nOutBufferSize)
 323                                         copyout(ke_area + piop->nInBufferSize, (void*)(ULONG_PTR)piop->lpOutBuffer, piop->nOutBufferSize);
 324
 325                                 if (piop->lpBytesReturned)
 326                                         copyout(&dwRet, (void*)(ULONG_PTR)piop->lpBytesReturned, sizeof(DWORD));
 327
 328                                 free(ke_area, M_DEVBUF);
 329                                 return length;
 330                         }
 331                         else  KdPrintW(("Kernel_ioctl(): return %d\n", err));
 332
 333                         free(ke_area, M_DEVBUF);
 334                         return -EINVAL;
 335                 } else  {
 336                 KdPrintW(("Wrong signature: %x\n", piop->Magic));
 337                 return -EINVAL;
 338                 }
 339 #endif
 340         }
 341
 342         return -EINVAL;
 343 }
 344
 345 #define shortswap(w) ((WORD)((w)>>8 | ((w) & 0xFF)<<8))
 346
 347 static void
 348 get_disk_name(char *name, PDevice pDev)
 349 {
 350         int i;
 351         MV_SATA_CHANNEL *pMvSataChannel = pDev->mv;
 352         IDENTIFY_DATA2 *pIdentifyData = (IDENTIFY_DATA2 *)pMvSataChannel->identifyDevice;
 353
 354         for (i = 0; i < 10; i++)
 355                 ((WORD*)name)[i] = shortswap(pIdentifyData->ModelNumber[i]);
 356         name[20] = '\0';
 357 }
 358
 359 static int
 360 hpt_copy_info(HPT_GET_INFO *pinfo, char *fmt, ...)
 361 {
 362         int printfretval;
 363         va_list ap;
 364
 365         if(fmt == NULL) {
 366                 *hptproc_buffer = 0;
 367                 return (SYSCTL_OUT(pinfo, hptproc_buffer, 1));
 368         }
 369         else
 370         {
 371                 va_start(ap, fmt);
 372                 printfretval = vsnprintf(hptproc_buffer, sizeof(hptproc_buffer), fmt, ap);
 373                 va_end(ap);
 374                 return(SYSCTL_OUT(pinfo, hptproc_buffer, strlen(hptproc_buffer)));
 375         }
 376 }
 377
 378 static void
 379 hpt_copy_disk_info(HPT_GET_INFO *pinfo, PVDevice pVDev, UINT iChan)
 380 {
 381         char name[32], arrayname[16], *status;
 382
 383         get_disk_name(name, &pVDev->u.disk);
 384
 385         if (!pVDev->u.disk.df_on_line)
 386                 status = "Disabled";
 387         else if (pVDev->VDeviceType==VD_SPARE)
 388                 status = "Spare   ";
 389         else
 390                 status = "Normal  ";
 391
 392 #ifdef SUPPORT_ARRAY
 393         if(pVDev->pParent) {
 394                 memcpy(arrayname, pVDev->pParent->u.array.ArrayName, MAX_ARRAY_NAME);
 395                 if (pVDev->pParent->u.array.CriticalMembers & (1<<pVDev->bSerialNumber))
 396                         status = "Degraded";
 397         }
 398         else
 399 #endif
 400                 arrayname[0]=0;
 401
 402         hpt_copy_info(pinfo, "Channel %d  %s  %5dMB  %s %s\n",
 403                 iChan+1,
 404                 name, pVDev->VDeviceCapacity>>11, status, arrayname);
 405 }
 406
 407 #ifdef SUPPORT_ARRAY
 408 static void
 409 hpt_copy_array_info(HPT_GET_INFO *pinfo, int nld, PVDevice pArray)
 410 {
 411         int i;
 412         char *sType=0, *sStatus=0;
 413         char buf[32];
 414     PVDevice pTmpArray;
 415
 416         switch (pArray->VDeviceType) {
 417                 case VD_RAID_0:
 418                         for (i = 0; (UCHAR)i < pArray->u.array.bArnMember; i++)
 419                                 if(pArray->u.array.pMember[i])  {
 420                                         if(mIsArray(pArray->u.array.pMember[i]))
 421                                                 sType = "RAID 1/0   ";
 422                                                 /* TO DO */
 423                                         else
 424                                                 sType = "RAID 0     ";
 425                                         break;
 426                                 }
 427                         break;
 428
 429                 case VD_RAID_1:
 430                         sType = "RAID 1     ";
 431                         break;
 432
 433                 case VD_JBOD:
 434                         sType = "JBOD       ";
 435                         break;
 436
 437                 case VD_RAID_5:
 438                 sType = "RAID 5     ";
 439                         break;
 440
 441                 default:
 442                         sType = "N/A        ";
 443                         break;
 444         }
 445
 446         if (pArray->vf_online == 0)
 447                 sStatus = "Disabled";
 448         else if (pArray->u.array.rf_broken)
 449                 sStatus = "Critical";
 450         for (i = 0; (UCHAR)i < pArray->u.array.bArnMember; i++)
 451         {
 452                 if (!sStatus)
 453                 {
 454                         if(mIsArray(pArray->u.array.pMember[i]))
 455                                 pTmpArray = pArray->u.array.pMember[i];
 456                         else
 457                                 pTmpArray = pArray;
 458
 459                         if (pTmpArray->u.array.rf_rebuilding) {
 460 #ifdef DEBUG
 461                                 sprintf(buf, "Rebuilding %lldMB", (pTmpArray->u.array.RebuildSectors>>11));
 462 #else
 463                                 sprintf(buf, "Rebuilding %d%%", (UINT)((pTmpArray->u.array.RebuildSectors>>11)*100/((pTmpArray->VDeviceCapacity/(pTmpArray->u.array.bArnMember-1))>>11)));
 464 #endif
 465                                 sStatus = buf;
 466                         }
 467                         else if (pTmpArray->u.array.rf_verifying) {
 468                                 sprintf(buf, "Verifying %d%%", (UINT)((pTmpArray->u.array.RebuildSectors>>11)*100/((pTmpArray->VDeviceCapacity/(pTmpArray->u.array.bArnMember-1))>>11)));
 469                                 sStatus = buf;
 470                         }
 471                         else if (pTmpArray->u.array.rf_need_rebuild)
 472                                 sStatus = "Critical";
 473                         else if (pTmpArray->u.array.rf_broken)
 474                                 sStatus = "Critical";
 475
 476                         if(pTmpArray == pArray) goto out;
 477                 }
 478                 else
 479                         goto out;
 480         }
 481 out:
 482         if (!sStatus) sStatus = "Normal";
 483         hpt_copy_info(pinfo, "%2d  %11s  %-20s  %5lldMB  %-16s", nld, sType, pArray->u.array.ArrayName, pArray->VDeviceCapacity>>11, sStatus);
 484 }
 485 #endif
 486
 487 static int
 488 hpt_get_info(IAL_ADAPTER_T *pAdapter, HPT_GET_INFO *pinfo)
 489 {
 490         PVBus _vbus_p = &pAdapter->VBus;
 491         struct cam_periph *periph = NULL;
 492         UINT channel,j,i;
 493         PVDevice pVDev;
 494
 495 #ifndef FOR_DEMO
 496         if (pAdapter->beeping) {
 497                 intrmask_t oldspl = lock_driver();
 498                 pAdapter->beeping = 0;
 499                 BeepOff(pAdapter->mvSataAdapter.adapterIoBaseAddress);
 500                 unlock_driver(oldspl);
 501         }
 502 #endif
 503
 504         hpt_copy_info(pinfo, "Controller #%d:\n\n", pAdapter->mvSataAdapter.adapterId);
 505
 506         hpt_copy_info(pinfo, "Physical device list\n");
 507         hpt_copy_info(pinfo, "Channel    Model                Capacity  Status   Array\n");
 508         hpt_copy_info(pinfo, "-------------------------------------------------------------------\n");
 509
 510     for (channel = 0; channel < MV_SATA_CHANNELS_NUM; channel++)
 511         {
 512                 pVDev = &(pAdapter->VDevices[channel]);
 513                 if(pVDev->u.disk.df_on_line)
 514                          hpt_copy_disk_info(pinfo, pVDev, channel);
 515         }
 516
 517         hpt_copy_info(pinfo, "\nLogical device list\n");
 518         hpt_copy_info(pinfo, "No. Type         Name                 Capacity  Status            OsDisk\n");
 519         hpt_copy_info(pinfo, "--------------------------------------------------------------------------\n");
 520
 521         j=1;
 522         for(i = 0; i < MAX_VDEVICE_PER_VBUS; i++){
 523         pVDev = _vbus_p->pVDevice[i];
 524                 if(pVDev){
 525                         j=i+1;
 526 #ifdef SUPPORT_ARRAY
 527                         if (mIsArray(pVDev))
 528                         {
 529                 is_array:
 530                                 hpt_copy_array_info(pinfo, j, pVDev);
 531                         }
 532                         else
 533 #endif
 534                         {
 535                                 char name[32];
 536                                 /* it may be add to an array after driver loaded, check it */
 537 #ifdef SUPPORT_ARRAY
 538                                 if (pVDev->pParent)
 539                                         /* in this case, pVDev can only be a RAID 1 source disk. */
 540                                         if (pVDev->pParent->VDeviceType==VD_RAID_1 && pVDev==pVDev->pParent->u.array.pMember[0])
 541                                                 goto is_array;
 542 #endif
 543                                 get_disk_name(name, &pVDev->u.disk);
 544
 545                                 hpt_copy_info(pinfo, "%2d  %s  %s  %5dMB  %-16s",
 546                                         j, "Single disk", name, pVDev->VDeviceCapacity>>11,
 547                                         /* gmm 2001-6-19: Check if pDev has been added to an array. */
 548                                         ((pVDev->pParent) ? "Unavailable" : "Normal"));
 549                         }
 550                         periph = hpt_get_periph(pAdapter->mvSataAdapter.adapterId, i);
 551                         if (periph == NULL)
 552                                 hpt_copy_info(pinfo,"  %s\n","not registered");
 553                         else
 554                                 hpt_copy_info(pinfo,"  %s%d\n", periph->periph_name, periph->unit_number);
 555                  }
 556         }
 557         return 0;
 558 }
 559
 560 static __inline int
 561 hpt_proc_in(FORMAL_HANDLER_ARGS, int *len)
 562 {
 563         int i, error=0;
 564
 565         *len = 0;
 566         if ((req->newlen - req->newidx) >= sizeof(hptproc_buffer)) {
 567                 error = EINVAL;
 568         } else {
 569                 i = (req->newlen - req->newidx);
 570                 error = SYSCTL_IN(req, hptproc_buffer, i);
 571                 if (!error)
 572                         *len = i;
 573                 (hptproc_buffer)[i] = '\0';
 574         }
 575         return (error);
 576 }
 577
 578 static int
 579 hpt_status(FORMAL_HANDLER_ARGS)
 580 {
 581         int length, error=0, retval=0;
 582         IAL_ADAPTER_T *pAdapter;
 583
 584         error = hpt_proc_in(REAL_HANDLER_ARGS, &length);
 585
 586     if (req->newptr != NULL)
 587         {
 588                 if (error || length == 0)
 589                 {
 590                 KdPrint(("error!\n"));
 591                 retval = EINVAL;
 592                 goto out;
 593                 }
 594
 595                 if (hpt_set_info(length) >= 0)
 596                         retval = 0;
 597                 else
 598                         retval = EINVAL;
 599                 goto out;
 600     }
 601
 602         hpt_copy_info(req, "%s Version %s\n", DRIVER_NAME, DRIVER_VERSION);
 603         for (pAdapter=gIal_Adapter; pAdapter; pAdapter=pAdapter->next) {
 604                 if (hpt_get_info(pAdapter, req) < 0) {
 605                         retval = EINVAL;
 606                         break;
 607                 }
 608         }
 609
 610         hpt_copy_info(req, NULL);
 611         goto out;
 612
 613 out:
 614         return (retval);
 615 }
 616
 617
 618 #define xhptregister_node(name) hptregister_node(name)
 619
 620 #if (__FreeBSD_version < 500043)
 621 #define hptregister_node(name) \
 622         SYSCTL_NODE(, OID_AUTO, name, CTLFLAG_RW, 0, "Get/Set " #name " state root node") \
 623         SYSCTL_OID(_ ## name, OID_AUTO, status, CTLTYPE_STRING|CTLFLAG_RW, \
 624         NULL, 0, hpt_status, "A", "Get/Set " #name " state")
 625 #else
 626 #define hptregister_node(name) \
 627         SYSCTL_NODE(, OID_AUTO, name, CTLFLAG_RW, 0, "Get/Set " #name " state root node"); \
 628         SYSCTL_OID(_ ## name, OID_AUTO, status, CTLTYPE_STRING|CTLFLAG_RW, \
 629         NULL, 0, hpt_status, "A", "Get/Set " #name " state");
 630 #endif
 631
 632 xhptregister_node(PROC_DIR_NAME);