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