drivers/message/fusion/mptctl.c

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