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