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