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