Eric Moore | 635374e | 2009-03-09 01:21:12 -0600 | [diff] [blame] | 1 | /* |
| 2 | * Management Module Support for MPT (Message Passing Technology) based |
| 3 | * controllers |
| 4 | * |
| 5 | * This code is based on drivers/scsi/mpt2sas/mpt2_ctl.c |
| 6 | * Copyright (C) 2007-2008 LSI Corporation |
| 7 | * (mailto:DL-MPTFusionLinux@lsi.com) |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or |
| 10 | * modify it under the terms of the GNU General Public License |
| 11 | * as published by the Free Software Foundation; either version 2 |
| 12 | * of the License, or (at your option) any later version. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | * GNU General Public License for more details. |
| 18 | * |
| 19 | * NO WARRANTY |
| 20 | * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR |
| 21 | * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT |
| 22 | * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, |
| 23 | * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is |
| 24 | * solely responsible for determining the appropriateness of using and |
| 25 | * distributing the Program and assumes all risks associated with its |
| 26 | * exercise of rights under this Agreement, including but not limited to |
| 27 | * the risks and costs of program errors, damage to or loss of data, |
| 28 | * programs or equipment, and unavailability or interruption of operations. |
| 29 | |
| 30 | * DISCLAIMER OF LIABILITY |
| 31 | * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY |
| 32 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 33 | * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND |
| 34 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR |
| 35 | * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE |
| 36 | * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED |
| 37 | * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES |
| 38 | |
| 39 | * You should have received a copy of the GNU General Public License |
| 40 | * along with this program; if not, write to the Free Software |
| 41 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, |
| 42 | * USA. |
| 43 | */ |
| 44 | |
| 45 | #include <linux/version.h> |
| 46 | #include <linux/kernel.h> |
| 47 | #include <linux/module.h> |
| 48 | #include <linux/errno.h> |
| 49 | #include <linux/init.h> |
| 50 | #include <linux/slab.h> |
| 51 | #include <linux/types.h> |
| 52 | #include <linux/pci.h> |
| 53 | #include <linux/delay.h> |
| 54 | #include <linux/smp_lock.h> |
| 55 | #include <linux/compat.h> |
| 56 | #include <linux/poll.h> |
| 57 | |
| 58 | #include <linux/io.h> |
| 59 | #include <linux/uaccess.h> |
| 60 | |
| 61 | #include "mpt2sas_base.h" |
| 62 | #include "mpt2sas_ctl.h" |
| 63 | |
| 64 | static struct fasync_struct *async_queue; |
| 65 | static DECLARE_WAIT_QUEUE_HEAD(ctl_poll_wait); |
| 66 | |
Eric Moore | 99bb214 | 2009-04-21 15:42:13 -0600 | [diff] [blame] | 67 | static int _ctl_send_release(struct MPT2SAS_ADAPTER *ioc, u8 buffer_type, |
| 68 | u8 *issue_reset); |
| 69 | |
Eric Moore | 635374e | 2009-03-09 01:21:12 -0600 | [diff] [blame] | 70 | /** |
| 71 | * enum block_state - blocking state |
| 72 | * @NON_BLOCKING: non blocking |
| 73 | * @BLOCKING: blocking |
| 74 | * |
| 75 | * These states are for ioctls that need to wait for a response |
| 76 | * from firmware, so they probably require sleep. |
| 77 | */ |
| 78 | enum block_state { |
| 79 | NON_BLOCKING, |
| 80 | BLOCKING, |
| 81 | }; |
| 82 | |
| 83 | #ifdef CONFIG_SCSI_MPT2SAS_LOGGING |
| 84 | /** |
| 85 | * _ctl_display_some_debug - debug routine |
| 86 | * @ioc: per adapter object |
| 87 | * @smid: system request message index |
| 88 | * @calling_function_name: string pass from calling function |
| 89 | * @mpi_reply: reply message frame |
| 90 | * Context: none. |
| 91 | * |
| 92 | * Function for displaying debug info helpfull when debugging issues |
| 93 | * in this module. |
| 94 | */ |
| 95 | static void |
| 96 | _ctl_display_some_debug(struct MPT2SAS_ADAPTER *ioc, u16 smid, |
| 97 | char *calling_function_name, MPI2DefaultReply_t *mpi_reply) |
| 98 | { |
| 99 | Mpi2ConfigRequest_t *mpi_request; |
| 100 | char *desc = NULL; |
| 101 | |
| 102 | if (!(ioc->logging_level & MPT_DEBUG_IOCTL)) |
| 103 | return; |
| 104 | |
| 105 | mpi_request = mpt2sas_base_get_msg_frame(ioc, smid); |
| 106 | switch (mpi_request->Function) { |
| 107 | case MPI2_FUNCTION_SCSI_IO_REQUEST: |
| 108 | { |
| 109 | Mpi2SCSIIORequest_t *scsi_request = |
| 110 | (Mpi2SCSIIORequest_t *)mpi_request; |
| 111 | |
| 112 | snprintf(ioc->tmp_string, MPT_STRING_LENGTH, |
| 113 | "scsi_io, cmd(0x%02x), cdb_len(%d)", |
| 114 | scsi_request->CDB.CDB32[0], |
| 115 | le16_to_cpu(scsi_request->IoFlags) & 0xF); |
| 116 | desc = ioc->tmp_string; |
| 117 | break; |
| 118 | } |
| 119 | case MPI2_FUNCTION_SCSI_TASK_MGMT: |
| 120 | desc = "task_mgmt"; |
| 121 | break; |
| 122 | case MPI2_FUNCTION_IOC_INIT: |
| 123 | desc = "ioc_init"; |
| 124 | break; |
| 125 | case MPI2_FUNCTION_IOC_FACTS: |
| 126 | desc = "ioc_facts"; |
| 127 | break; |
| 128 | case MPI2_FUNCTION_CONFIG: |
| 129 | { |
| 130 | Mpi2ConfigRequest_t *config_request = |
| 131 | (Mpi2ConfigRequest_t *)mpi_request; |
| 132 | |
| 133 | snprintf(ioc->tmp_string, MPT_STRING_LENGTH, |
| 134 | "config, type(0x%02x), ext_type(0x%02x), number(%d)", |
| 135 | (config_request->Header.PageType & |
| 136 | MPI2_CONFIG_PAGETYPE_MASK), config_request->ExtPageType, |
| 137 | config_request->Header.PageNumber); |
| 138 | desc = ioc->tmp_string; |
| 139 | break; |
| 140 | } |
| 141 | case MPI2_FUNCTION_PORT_FACTS: |
| 142 | desc = "port_facts"; |
| 143 | break; |
| 144 | case MPI2_FUNCTION_PORT_ENABLE: |
| 145 | desc = "port_enable"; |
| 146 | break; |
| 147 | case MPI2_FUNCTION_EVENT_NOTIFICATION: |
| 148 | desc = "event_notification"; |
| 149 | break; |
| 150 | case MPI2_FUNCTION_FW_DOWNLOAD: |
| 151 | desc = "fw_download"; |
| 152 | break; |
| 153 | case MPI2_FUNCTION_FW_UPLOAD: |
| 154 | desc = "fw_upload"; |
| 155 | break; |
| 156 | case MPI2_FUNCTION_RAID_ACTION: |
| 157 | desc = "raid_action"; |
| 158 | break; |
| 159 | case MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH: |
| 160 | { |
| 161 | Mpi2SCSIIORequest_t *scsi_request = |
| 162 | (Mpi2SCSIIORequest_t *)mpi_request; |
| 163 | |
| 164 | snprintf(ioc->tmp_string, MPT_STRING_LENGTH, |
| 165 | "raid_pass, cmd(0x%02x), cdb_len(%d)", |
| 166 | scsi_request->CDB.CDB32[0], |
| 167 | le16_to_cpu(scsi_request->IoFlags) & 0xF); |
| 168 | desc = ioc->tmp_string; |
| 169 | break; |
| 170 | } |
| 171 | case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL: |
| 172 | desc = "sas_iounit_cntl"; |
| 173 | break; |
| 174 | case MPI2_FUNCTION_SATA_PASSTHROUGH: |
| 175 | desc = "sata_pass"; |
| 176 | break; |
| 177 | case MPI2_FUNCTION_DIAG_BUFFER_POST: |
| 178 | desc = "diag_buffer_post"; |
| 179 | break; |
| 180 | case MPI2_FUNCTION_DIAG_RELEASE: |
| 181 | desc = "diag_release"; |
| 182 | break; |
| 183 | case MPI2_FUNCTION_SMP_PASSTHROUGH: |
| 184 | desc = "smp_passthrough"; |
| 185 | break; |
| 186 | } |
| 187 | |
| 188 | if (!desc) |
| 189 | return; |
| 190 | |
| 191 | printk(MPT2SAS_DEBUG_FMT "%s: %s, smid(%d)\n", |
| 192 | ioc->name, calling_function_name, desc, smid); |
| 193 | |
| 194 | if (!mpi_reply) |
| 195 | return; |
| 196 | |
| 197 | if (mpi_reply->IOCStatus || mpi_reply->IOCLogInfo) |
| 198 | printk(MPT2SAS_DEBUG_FMT |
| 199 | "\tiocstatus(0x%04x), loginfo(0x%08x)\n", |
| 200 | ioc->name, le16_to_cpu(mpi_reply->IOCStatus), |
| 201 | le32_to_cpu(mpi_reply->IOCLogInfo)); |
| 202 | |
| 203 | if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST || |
| 204 | mpi_request->Function == |
| 205 | MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) { |
| 206 | Mpi2SCSIIOReply_t *scsi_reply = |
| 207 | (Mpi2SCSIIOReply_t *)mpi_reply; |
| 208 | if (scsi_reply->SCSIState || scsi_reply->SCSIStatus) |
| 209 | printk(MPT2SAS_DEBUG_FMT |
| 210 | "\tscsi_state(0x%02x), scsi_status" |
| 211 | "(0x%02x)\n", ioc->name, |
| 212 | scsi_reply->SCSIState, |
| 213 | scsi_reply->SCSIStatus); |
| 214 | } |
| 215 | } |
| 216 | #endif |
| 217 | |
| 218 | /** |
| 219 | * mpt2sas_ctl_done - ctl module completion routine |
| 220 | * @ioc: per adapter object |
| 221 | * @smid: system request message index |
| 222 | * @VF_ID: virtual function id |
| 223 | * @reply: reply message frame(lower 32bit addr) |
| 224 | * Context: none. |
| 225 | * |
| 226 | * The callback handler when using ioc->ctl_cb_idx. |
| 227 | * |
| 228 | * Return nothing. |
| 229 | */ |
| 230 | void |
| 231 | mpt2sas_ctl_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 VF_ID, u32 reply) |
| 232 | { |
| 233 | MPI2DefaultReply_t *mpi_reply; |
| 234 | |
| 235 | if (ioc->ctl_cmds.status == MPT2_CMD_NOT_USED) |
| 236 | return; |
| 237 | if (ioc->ctl_cmds.smid != smid) |
| 238 | return; |
| 239 | ioc->ctl_cmds.status |= MPT2_CMD_COMPLETE; |
| 240 | mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply); |
| 241 | if (mpi_reply) { |
| 242 | memcpy(ioc->ctl_cmds.reply, mpi_reply, mpi_reply->MsgLength*4); |
| 243 | ioc->ctl_cmds.status |= MPT2_CMD_REPLY_VALID; |
| 244 | } |
| 245 | #ifdef CONFIG_SCSI_MPT2SAS_LOGGING |
| 246 | _ctl_display_some_debug(ioc, smid, "ctl_done", mpi_reply); |
| 247 | #endif |
| 248 | ioc->ctl_cmds.status &= ~MPT2_CMD_PENDING; |
| 249 | complete(&ioc->ctl_cmds.done); |
| 250 | } |
| 251 | |
| 252 | /** |
| 253 | * _ctl_check_event_type - determines when an event needs logging |
| 254 | * @ioc: per adapter object |
| 255 | * @event: firmware event |
| 256 | * |
| 257 | * The bitmask in ioc->event_type[] indicates which events should be |
| 258 | * be saved in the driver event_log. This bitmask is set by application. |
| 259 | * |
| 260 | * Returns 1 when event should be captured, or zero means no match. |
| 261 | */ |
| 262 | static int |
| 263 | _ctl_check_event_type(struct MPT2SAS_ADAPTER *ioc, u16 event) |
| 264 | { |
| 265 | u16 i; |
| 266 | u32 desired_event; |
| 267 | |
| 268 | if (event >= 128 || !event || !ioc->event_log) |
| 269 | return 0; |
| 270 | |
| 271 | desired_event = (1 << (event % 32)); |
| 272 | if (!desired_event) |
| 273 | desired_event = 1; |
| 274 | i = event / 32; |
| 275 | return desired_event & ioc->event_type[i]; |
| 276 | } |
| 277 | |
| 278 | /** |
| 279 | * mpt2sas_ctl_add_to_event_log - add event |
| 280 | * @ioc: per adapter object |
| 281 | * @mpi_reply: reply message frame |
| 282 | * |
| 283 | * Return nothing. |
| 284 | */ |
| 285 | void |
| 286 | mpt2sas_ctl_add_to_event_log(struct MPT2SAS_ADAPTER *ioc, |
| 287 | Mpi2EventNotificationReply_t *mpi_reply) |
| 288 | { |
| 289 | struct MPT2_IOCTL_EVENTS *event_log; |
| 290 | u16 event; |
| 291 | int i; |
| 292 | u32 sz, event_data_sz; |
| 293 | u8 send_aen = 0; |
| 294 | |
| 295 | if (!ioc->event_log) |
| 296 | return; |
| 297 | |
| 298 | event = le16_to_cpu(mpi_reply->Event); |
| 299 | |
| 300 | if (_ctl_check_event_type(ioc, event)) { |
| 301 | |
| 302 | /* insert entry into circular event_log */ |
| 303 | i = ioc->event_context % MPT2SAS_CTL_EVENT_LOG_SIZE; |
| 304 | event_log = ioc->event_log; |
| 305 | event_log[i].event = event; |
| 306 | event_log[i].context = ioc->event_context++; |
| 307 | |
| 308 | event_data_sz = le16_to_cpu(mpi_reply->EventDataLength)*4; |
| 309 | sz = min_t(u32, event_data_sz, MPT2_EVENT_DATA_SIZE); |
| 310 | memset(event_log[i].data, 0, MPT2_EVENT_DATA_SIZE); |
| 311 | memcpy(event_log[i].data, mpi_reply->EventData, sz); |
| 312 | send_aen = 1; |
| 313 | } |
| 314 | |
| 315 | /* This aen_event_read_flag flag is set until the |
| 316 | * application has read the event log. |
| 317 | * For MPI2_EVENT_LOG_ENTRY_ADDED, we always notify. |
| 318 | */ |
| 319 | if (event == MPI2_EVENT_LOG_ENTRY_ADDED || |
| 320 | (send_aen && !ioc->aen_event_read_flag)) { |
| 321 | ioc->aen_event_read_flag = 1; |
| 322 | wake_up_interruptible(&ctl_poll_wait); |
| 323 | if (async_queue) |
| 324 | kill_fasync(&async_queue, SIGIO, POLL_IN); |
| 325 | } |
| 326 | } |
| 327 | |
| 328 | /** |
| 329 | * mpt2sas_ctl_event_callback - firmware event handler (called at ISR time) |
| 330 | * @ioc: per adapter object |
| 331 | * @VF_ID: virtual function id |
| 332 | * @reply: reply message frame(lower 32bit addr) |
| 333 | * Context: interrupt. |
| 334 | * |
| 335 | * This function merely adds a new work task into ioc->firmware_event_thread. |
| 336 | * The tasks are worked from _firmware_event_work in user context. |
| 337 | * |
| 338 | * Return nothing. |
| 339 | */ |
| 340 | void |
| 341 | mpt2sas_ctl_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID, u32 reply) |
| 342 | { |
| 343 | Mpi2EventNotificationReply_t *mpi_reply; |
| 344 | |
| 345 | mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply); |
| 346 | mpt2sas_ctl_add_to_event_log(ioc, mpi_reply); |
| 347 | } |
| 348 | |
| 349 | /** |
| 350 | * _ctl_verify_adapter - validates ioc_number passed from application |
| 351 | * @ioc: per adapter object |
| 352 | * @iocpp: The ioc pointer is returned in this. |
| 353 | * |
| 354 | * Return (-1) means error, else ioc_number. |
| 355 | */ |
| 356 | static int |
| 357 | _ctl_verify_adapter(int ioc_number, struct MPT2SAS_ADAPTER **iocpp) |
| 358 | { |
| 359 | struct MPT2SAS_ADAPTER *ioc; |
| 360 | |
Eric Moore | ba33fad | 2009-03-15 21:37:18 -0600 | [diff] [blame] | 361 | list_for_each_entry(ioc, &mpt2sas_ioc_list, list) { |
Eric Moore | 635374e | 2009-03-09 01:21:12 -0600 | [diff] [blame] | 362 | if (ioc->id != ioc_number) |
| 363 | continue; |
| 364 | *iocpp = ioc; |
| 365 | return ioc_number; |
| 366 | } |
| 367 | *iocpp = NULL; |
| 368 | return -1; |
| 369 | } |
| 370 | |
| 371 | /** |
| 372 | * mpt2sas_ctl_reset_handler - reset callback handler (for ctl) |
| 373 | * @ioc: per adapter object |
| 374 | * @reset_phase: phase |
| 375 | * |
| 376 | * The handler for doing any required cleanup or initialization. |
| 377 | * |
| 378 | * The reset phase can be MPT2_IOC_PRE_RESET, MPT2_IOC_AFTER_RESET, |
| 379 | * MPT2_IOC_DONE_RESET |
| 380 | */ |
| 381 | void |
| 382 | mpt2sas_ctl_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase) |
| 383 | { |
Eric Moore | 99bb214 | 2009-04-21 15:42:13 -0600 | [diff] [blame] | 384 | int i; |
| 385 | u8 issue_reset; |
| 386 | |
Eric Moore | 635374e | 2009-03-09 01:21:12 -0600 | [diff] [blame] | 387 | switch (reset_phase) { |
| 388 | case MPT2_IOC_PRE_RESET: |
| 389 | dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: " |
| 390 | "MPT2_IOC_PRE_RESET\n", ioc->name, __func__)); |
Eric Moore | 99bb214 | 2009-04-21 15:42:13 -0600 | [diff] [blame] | 391 | for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) { |
| 392 | if (!(ioc->diag_buffer_status[i] & |
| 393 | MPT2_DIAG_BUFFER_IS_REGISTERED)) |
| 394 | continue; |
| 395 | if ((ioc->diag_buffer_status[i] & |
| 396 | MPT2_DIAG_BUFFER_IS_RELEASED)) |
| 397 | continue; |
| 398 | _ctl_send_release(ioc, i, &issue_reset); |
| 399 | } |
Eric Moore | 635374e | 2009-03-09 01:21:12 -0600 | [diff] [blame] | 400 | break; |
| 401 | case MPT2_IOC_AFTER_RESET: |
| 402 | dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: " |
| 403 | "MPT2_IOC_AFTER_RESET\n", ioc->name, __func__)); |
| 404 | if (ioc->ctl_cmds.status & MPT2_CMD_PENDING) { |
| 405 | ioc->ctl_cmds.status |= MPT2_CMD_RESET; |
| 406 | mpt2sas_base_free_smid(ioc, ioc->ctl_cmds.smid); |
| 407 | complete(&ioc->ctl_cmds.done); |
| 408 | } |
| 409 | break; |
| 410 | case MPT2_IOC_DONE_RESET: |
| 411 | dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: " |
| 412 | "MPT2_IOC_DONE_RESET\n", ioc->name, __func__)); |
Eric Moore | 99bb214 | 2009-04-21 15:42:13 -0600 | [diff] [blame] | 413 | |
| 414 | for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) { |
| 415 | if (!(ioc->diag_buffer_status[i] & |
| 416 | MPT2_DIAG_BUFFER_IS_REGISTERED)) |
| 417 | continue; |
| 418 | if ((ioc->diag_buffer_status[i] & |
| 419 | MPT2_DIAG_BUFFER_IS_RELEASED)) |
| 420 | continue; |
| 421 | ioc->diag_buffer_status[i] |= |
| 422 | MPT2_DIAG_BUFFER_IS_DIAG_RESET; |
| 423 | } |
Eric Moore | 635374e | 2009-03-09 01:21:12 -0600 | [diff] [blame] | 424 | break; |
| 425 | } |
| 426 | } |
| 427 | |
| 428 | /** |
| 429 | * _ctl_fasync - |
| 430 | * @fd - |
| 431 | * @filep - |
| 432 | * @mode - |
| 433 | * |
| 434 | * Called when application request fasyn callback handler. |
| 435 | */ |
| 436 | static int |
| 437 | _ctl_fasync(int fd, struct file *filep, int mode) |
| 438 | { |
| 439 | return fasync_helper(fd, filep, mode, &async_queue); |
| 440 | } |
| 441 | |
| 442 | /** |
| 443 | * _ctl_release - |
| 444 | * @inode - |
| 445 | * @filep - |
| 446 | * |
| 447 | * Called when application releases the fasyn callback handler. |
| 448 | */ |
| 449 | static int |
| 450 | _ctl_release(struct inode *inode, struct file *filep) |
| 451 | { |
| 452 | return fasync_helper(-1, filep, 0, &async_queue); |
| 453 | } |
| 454 | |
| 455 | /** |
| 456 | * _ctl_poll - |
| 457 | * @file - |
| 458 | * @wait - |
| 459 | * |
| 460 | */ |
| 461 | static unsigned int |
| 462 | _ctl_poll(struct file *filep, poll_table *wait) |
| 463 | { |
| 464 | struct MPT2SAS_ADAPTER *ioc; |
| 465 | |
| 466 | poll_wait(filep, &ctl_poll_wait, wait); |
| 467 | |
Eric Moore | ba33fad | 2009-03-15 21:37:18 -0600 | [diff] [blame] | 468 | list_for_each_entry(ioc, &mpt2sas_ioc_list, list) { |
Eric Moore | 635374e | 2009-03-09 01:21:12 -0600 | [diff] [blame] | 469 | if (ioc->aen_event_read_flag) |
| 470 | return POLLIN | POLLRDNORM; |
| 471 | } |
| 472 | return 0; |
| 473 | } |
| 474 | |
| 475 | /** |
Eric Moore | ddf59a3 | 2009-05-18 13:01:29 -0600 | [diff] [blame] | 476 | * _ctl_set_task_mid - assign an active smid to tm request |
Eric Moore | 635374e | 2009-03-09 01:21:12 -0600 | [diff] [blame] | 477 | * @ioc: per adapter object |
| 478 | * @karg - (struct mpt2_ioctl_command) |
| 479 | * @tm_request - pointer to mf from user space |
| 480 | * |
| 481 | * Returns 0 when an smid if found, else fail. |
| 482 | * during failure, the reply frame is filled. |
| 483 | */ |
| 484 | static int |
Eric Moore | ddf59a3 | 2009-05-18 13:01:29 -0600 | [diff] [blame] | 485 | _ctl_set_task_mid(struct MPT2SAS_ADAPTER *ioc, struct mpt2_ioctl_command *karg, |
Eric Moore | 635374e | 2009-03-09 01:21:12 -0600 | [diff] [blame] | 486 | Mpi2SCSITaskManagementRequest_t *tm_request) |
| 487 | { |
| 488 | u8 found = 0; |
| 489 | u16 i; |
| 490 | u16 handle; |
| 491 | struct scsi_cmnd *scmd; |
| 492 | struct MPT2SAS_DEVICE *priv_data; |
| 493 | unsigned long flags; |
| 494 | Mpi2SCSITaskManagementReply_t *tm_reply; |
| 495 | u32 sz; |
| 496 | u32 lun; |
Eric Moore | ddf59a3 | 2009-05-18 13:01:29 -0600 | [diff] [blame] | 497 | char *desc = NULL; |
| 498 | |
| 499 | if (tm_request->TaskType == MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK) |
| 500 | desc = "abort_task"; |
| 501 | else if (tm_request->TaskType == MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK) |
| 502 | desc = "query_task"; |
| 503 | else |
| 504 | return 0; |
Eric Moore | 635374e | 2009-03-09 01:21:12 -0600 | [diff] [blame] | 505 | |
| 506 | lun = scsilun_to_int((struct scsi_lun *)tm_request->LUN); |
| 507 | |
| 508 | handle = le16_to_cpu(tm_request->DevHandle); |
| 509 | spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); |
| 510 | for (i = ioc->request_depth; i && !found; i--) { |
| 511 | scmd = ioc->scsi_lookup[i - 1].scmd; |
| 512 | if (scmd == NULL || scmd->device == NULL || |
| 513 | scmd->device->hostdata == NULL) |
| 514 | continue; |
| 515 | if (lun != scmd->device->lun) |
| 516 | continue; |
| 517 | priv_data = scmd->device->hostdata; |
| 518 | if (priv_data->sas_target == NULL) |
| 519 | continue; |
| 520 | if (priv_data->sas_target->handle != handle) |
| 521 | continue; |
| 522 | tm_request->TaskMID = cpu_to_le16(ioc->scsi_lookup[i - 1].smid); |
| 523 | found = 1; |
| 524 | } |
| 525 | spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); |
| 526 | |
| 527 | if (!found) { |
Eric Moore | ddf59a3 | 2009-05-18 13:01:29 -0600 | [diff] [blame] | 528 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: " |
| 529 | "handle(0x%04x), lun(%d), no active mid!!\n", ioc->name, |
| 530 | desc, tm_request->DevHandle, lun)); |
Eric Moore | 635374e | 2009-03-09 01:21:12 -0600 | [diff] [blame] | 531 | tm_reply = ioc->ctl_cmds.reply; |
| 532 | tm_reply->DevHandle = tm_request->DevHandle; |
| 533 | tm_reply->Function = MPI2_FUNCTION_SCSI_TASK_MGMT; |
Eric Moore | ddf59a3 | 2009-05-18 13:01:29 -0600 | [diff] [blame] | 534 | tm_reply->TaskType = tm_request->TaskType; |
Eric Moore | 635374e | 2009-03-09 01:21:12 -0600 | [diff] [blame] | 535 | tm_reply->MsgLength = sizeof(Mpi2SCSITaskManagementReply_t)/4; |
| 536 | tm_reply->VP_ID = tm_request->VP_ID; |
| 537 | tm_reply->VF_ID = tm_request->VF_ID; |
| 538 | sz = min_t(u32, karg->max_reply_bytes, ioc->reply_sz); |
| 539 | if (copy_to_user(karg->reply_frame_buf_ptr, ioc->ctl_cmds.reply, |
| 540 | sz)) |
| 541 | printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__, |
| 542 | __LINE__, __func__); |
| 543 | return 1; |
| 544 | } |
| 545 | |
Eric Moore | ddf59a3 | 2009-05-18 13:01:29 -0600 | [diff] [blame] | 546 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: " |
| 547 | "handle(0x%04x), lun(%d), task_mid(%d)\n", ioc->name, |
| 548 | desc, tm_request->DevHandle, lun, tm_request->TaskMID)); |
Eric Moore | 635374e | 2009-03-09 01:21:12 -0600 | [diff] [blame] | 549 | return 0; |
| 550 | } |
| 551 | |
| 552 | /** |
| 553 | * _ctl_do_mpt_command - main handler for MPT2COMMAND opcode |
| 554 | * @ioc: per adapter object |
| 555 | * @karg - (struct mpt2_ioctl_command) |
| 556 | * @mf - pointer to mf in user space |
| 557 | * @state - NON_BLOCKING or BLOCKING |
| 558 | */ |
| 559 | static long |
| 560 | _ctl_do_mpt_command(struct MPT2SAS_ADAPTER *ioc, |
| 561 | struct mpt2_ioctl_command karg, void __user *mf, enum block_state state) |
| 562 | { |
| 563 | MPI2RequestHeader_t *mpi_request; |
| 564 | MPI2DefaultReply_t *mpi_reply; |
| 565 | u32 ioc_state; |
| 566 | u16 ioc_status; |
| 567 | u16 smid; |
| 568 | unsigned long timeout, timeleft; |
| 569 | u8 issue_reset; |
| 570 | u32 sz; |
| 571 | void *psge; |
| 572 | void *priv_sense = NULL; |
| 573 | void *data_out = NULL; |
| 574 | dma_addr_t data_out_dma; |
| 575 | size_t data_out_sz = 0; |
| 576 | void *data_in = NULL; |
| 577 | dma_addr_t data_in_dma; |
| 578 | size_t data_in_sz = 0; |
| 579 | u32 sgl_flags; |
| 580 | long ret; |
| 581 | u16 wait_state_count; |
| 582 | |
| 583 | issue_reset = 0; |
| 584 | |
| 585 | if (state == NON_BLOCKING && !mutex_trylock(&ioc->ctl_cmds.mutex)) |
| 586 | return -EAGAIN; |
| 587 | else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex)) |
| 588 | return -ERESTARTSYS; |
| 589 | |
| 590 | if (ioc->ctl_cmds.status != MPT2_CMD_NOT_USED) { |
| 591 | printk(MPT2SAS_ERR_FMT "%s: ctl_cmd in use\n", |
| 592 | ioc->name, __func__); |
| 593 | ret = -EAGAIN; |
| 594 | goto out; |
| 595 | } |
| 596 | |
| 597 | wait_state_count = 0; |
| 598 | ioc_state = mpt2sas_base_get_iocstate(ioc, 1); |
| 599 | while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { |
| 600 | if (wait_state_count++ == 10) { |
| 601 | printk(MPT2SAS_ERR_FMT |
| 602 | "%s: failed due to ioc not operational\n", |
| 603 | ioc->name, __func__); |
| 604 | ret = -EFAULT; |
| 605 | goto out; |
| 606 | } |
| 607 | ssleep(1); |
| 608 | ioc_state = mpt2sas_base_get_iocstate(ioc, 1); |
| 609 | printk(MPT2SAS_INFO_FMT "%s: waiting for " |
| 610 | "operational state(count=%d)\n", ioc->name, |
| 611 | __func__, wait_state_count); |
| 612 | } |
| 613 | if (wait_state_count) |
| 614 | printk(MPT2SAS_INFO_FMT "%s: ioc is operational\n", |
| 615 | ioc->name, __func__); |
| 616 | |
| 617 | smid = mpt2sas_base_get_smid(ioc, ioc->ctl_cb_idx); |
| 618 | if (!smid) { |
| 619 | printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", |
| 620 | ioc->name, __func__); |
| 621 | ret = -EAGAIN; |
| 622 | goto out; |
| 623 | } |
| 624 | |
| 625 | ret = 0; |
| 626 | ioc->ctl_cmds.status = MPT2_CMD_PENDING; |
| 627 | memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz); |
| 628 | mpi_request = mpt2sas_base_get_msg_frame(ioc, smid); |
| 629 | ioc->ctl_cmds.smid = smid; |
| 630 | data_out_sz = karg.data_out_size; |
| 631 | data_in_sz = karg.data_in_size; |
| 632 | |
| 633 | /* copy in request message frame from user */ |
| 634 | if (copy_from_user(mpi_request, mf, karg.data_sge_offset*4)) { |
| 635 | printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__, __LINE__, |
| 636 | __func__); |
| 637 | ret = -EFAULT; |
| 638 | mpt2sas_base_free_smid(ioc, smid); |
| 639 | goto out; |
| 640 | } |
| 641 | |
| 642 | if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST || |
| 643 | mpi_request->Function == MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) { |
| 644 | if (!mpi_request->FunctionDependent1 || |
| 645 | mpi_request->FunctionDependent1 > |
| 646 | cpu_to_le16(ioc->facts.MaxDevHandle)) { |
| 647 | ret = -EINVAL; |
| 648 | mpt2sas_base_free_smid(ioc, smid); |
| 649 | goto out; |
| 650 | } |
| 651 | } |
| 652 | |
| 653 | /* obtain dma-able memory for data transfer */ |
| 654 | if (data_out_sz) /* WRITE */ { |
| 655 | data_out = pci_alloc_consistent(ioc->pdev, data_out_sz, |
| 656 | &data_out_dma); |
| 657 | if (!data_out) { |
| 658 | printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__, |
| 659 | __LINE__, __func__); |
| 660 | ret = -ENOMEM; |
| 661 | mpt2sas_base_free_smid(ioc, smid); |
| 662 | goto out; |
| 663 | } |
| 664 | if (copy_from_user(data_out, karg.data_out_buf_ptr, |
| 665 | data_out_sz)) { |
| 666 | printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__, |
| 667 | __LINE__, __func__); |
| 668 | ret = -EFAULT; |
| 669 | mpt2sas_base_free_smid(ioc, smid); |
| 670 | goto out; |
| 671 | } |
| 672 | } |
| 673 | |
| 674 | if (data_in_sz) /* READ */ { |
| 675 | data_in = pci_alloc_consistent(ioc->pdev, data_in_sz, |
| 676 | &data_in_dma); |
| 677 | if (!data_in) { |
| 678 | printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__, |
| 679 | __LINE__, __func__); |
| 680 | ret = -ENOMEM; |
| 681 | mpt2sas_base_free_smid(ioc, smid); |
| 682 | goto out; |
| 683 | } |
| 684 | } |
| 685 | |
| 686 | /* add scatter gather elements */ |
| 687 | psge = (void *)mpi_request + (karg.data_sge_offset*4); |
| 688 | |
| 689 | if (!data_out_sz && !data_in_sz) { |
| 690 | mpt2sas_base_build_zero_len_sge(ioc, psge); |
| 691 | } else if (data_out_sz && data_in_sz) { |
| 692 | /* WRITE sgel first */ |
| 693 | sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT | |
| 694 | MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_HOST_TO_IOC); |
| 695 | sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT; |
| 696 | ioc->base_add_sg_single(psge, sgl_flags | |
| 697 | data_out_sz, data_out_dma); |
| 698 | |
| 699 | /* incr sgel */ |
| 700 | psge += ioc->sge_size; |
| 701 | |
| 702 | /* READ sgel last */ |
| 703 | sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT | |
| 704 | MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER | |
| 705 | MPI2_SGE_FLAGS_END_OF_LIST); |
| 706 | sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT; |
| 707 | ioc->base_add_sg_single(psge, sgl_flags | |
| 708 | data_in_sz, data_in_dma); |
| 709 | } else if (data_out_sz) /* WRITE */ { |
| 710 | sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT | |
| 711 | MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER | |
| 712 | MPI2_SGE_FLAGS_END_OF_LIST | MPI2_SGE_FLAGS_HOST_TO_IOC); |
| 713 | sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT; |
| 714 | ioc->base_add_sg_single(psge, sgl_flags | |
| 715 | data_out_sz, data_out_dma); |
| 716 | } else if (data_in_sz) /* READ */ { |
| 717 | sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT | |
| 718 | MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER | |
| 719 | MPI2_SGE_FLAGS_END_OF_LIST); |
| 720 | sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT; |
| 721 | ioc->base_add_sg_single(psge, sgl_flags | |
| 722 | data_in_sz, data_in_dma); |
| 723 | } |
| 724 | |
| 725 | /* send command to firmware */ |
| 726 | #ifdef CONFIG_SCSI_MPT2SAS_LOGGING |
| 727 | _ctl_display_some_debug(ioc, smid, "ctl_request", NULL); |
| 728 | #endif |
| 729 | |
| 730 | switch (mpi_request->Function) { |
| 731 | case MPI2_FUNCTION_SCSI_IO_REQUEST: |
| 732 | case MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH: |
| 733 | { |
| 734 | Mpi2SCSIIORequest_t *scsiio_request = |
| 735 | (Mpi2SCSIIORequest_t *)mpi_request; |
| 736 | scsiio_request->SenseBufferLowAddress = |
| 737 | (u32)mpt2sas_base_get_sense_buffer_dma(ioc, smid); |
| 738 | priv_sense = mpt2sas_base_get_sense_buffer(ioc, smid); |
| 739 | memset(priv_sense, 0, SCSI_SENSE_BUFFERSIZE); |
| 740 | mpt2sas_base_put_smid_scsi_io(ioc, smid, 0, |
| 741 | le16_to_cpu(mpi_request->FunctionDependent1)); |
| 742 | break; |
| 743 | } |
| 744 | case MPI2_FUNCTION_SCSI_TASK_MGMT: |
| 745 | { |
| 746 | Mpi2SCSITaskManagementRequest_t *tm_request = |
| 747 | (Mpi2SCSITaskManagementRequest_t *)mpi_request; |
| 748 | |
| 749 | if (tm_request->TaskType == |
Eric Moore | ddf59a3 | 2009-05-18 13:01:29 -0600 | [diff] [blame] | 750 | MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK || |
| 751 | tm_request->TaskType == |
| 752 | MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK) { |
| 753 | if (_ctl_set_task_mid(ioc, &karg, tm_request)) { |
Eric Moore | 77bdd9e | 2009-04-21 15:39:24 -0600 | [diff] [blame] | 754 | mpt2sas_base_free_smid(ioc, smid); |
Eric Moore | 635374e | 2009-03-09 01:21:12 -0600 | [diff] [blame] | 755 | goto out; |
Eric Moore | 77bdd9e | 2009-04-21 15:39:24 -0600 | [diff] [blame] | 756 | } |
Eric Moore | 635374e | 2009-03-09 01:21:12 -0600 | [diff] [blame] | 757 | } |
| 758 | |
| 759 | mutex_lock(&ioc->tm_cmds.mutex); |
| 760 | mpt2sas_scsih_set_tm_flag(ioc, le16_to_cpu( |
| 761 | tm_request->DevHandle)); |
| 762 | mpt2sas_base_put_smid_hi_priority(ioc, smid, |
| 763 | mpi_request->VF_ID); |
| 764 | break; |
| 765 | } |
| 766 | case MPI2_FUNCTION_SMP_PASSTHROUGH: |
| 767 | { |
| 768 | Mpi2SmpPassthroughRequest_t *smp_request = |
| 769 | (Mpi2SmpPassthroughRequest_t *)mpi_request; |
| 770 | u8 *data; |
| 771 | |
| 772 | /* ioc determines which port to use */ |
| 773 | smp_request->PhysicalPort = 0xFF; |
| 774 | if (smp_request->PassthroughFlags & |
| 775 | MPI2_SMP_PT_REQ_PT_FLAGS_IMMEDIATE) |
| 776 | data = (u8 *)&smp_request->SGL; |
| 777 | else |
| 778 | data = data_out; |
| 779 | |
| 780 | if (data[1] == 0x91 && (data[10] == 1 || data[10] == 2)) { |
| 781 | ioc->ioc_link_reset_in_progress = 1; |
| 782 | ioc->ignore_loginfos = 1; |
| 783 | } |
| 784 | mpt2sas_base_put_smid_default(ioc, smid, mpi_request->VF_ID); |
| 785 | break; |
| 786 | } |
| 787 | case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL: |
| 788 | { |
| 789 | Mpi2SasIoUnitControlRequest_t *sasiounit_request = |
| 790 | (Mpi2SasIoUnitControlRequest_t *)mpi_request; |
| 791 | |
| 792 | if (sasiounit_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET |
| 793 | || sasiounit_request->Operation == |
| 794 | MPI2_SAS_OP_PHY_LINK_RESET) { |
| 795 | ioc->ioc_link_reset_in_progress = 1; |
| 796 | ioc->ignore_loginfos = 1; |
| 797 | } |
| 798 | mpt2sas_base_put_smid_default(ioc, smid, mpi_request->VF_ID); |
| 799 | break; |
| 800 | } |
| 801 | default: |
| 802 | mpt2sas_base_put_smid_default(ioc, smid, mpi_request->VF_ID); |
| 803 | break; |
| 804 | } |
| 805 | |
| 806 | if (karg.timeout < MPT2_IOCTL_DEFAULT_TIMEOUT) |
| 807 | timeout = MPT2_IOCTL_DEFAULT_TIMEOUT; |
| 808 | else |
| 809 | timeout = karg.timeout; |
| 810 | timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done, |
| 811 | timeout*HZ); |
| 812 | if (mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT) { |
| 813 | Mpi2SCSITaskManagementRequest_t *tm_request = |
| 814 | (Mpi2SCSITaskManagementRequest_t *)mpi_request; |
| 815 | mutex_unlock(&ioc->tm_cmds.mutex); |
| 816 | mpt2sas_scsih_clear_tm_flag(ioc, le16_to_cpu( |
| 817 | tm_request->DevHandle)); |
| 818 | } else if ((mpi_request->Function == MPI2_FUNCTION_SMP_PASSTHROUGH || |
| 819 | mpi_request->Function == MPI2_FUNCTION_SAS_IO_UNIT_CONTROL) && |
| 820 | ioc->ioc_link_reset_in_progress) { |
| 821 | ioc->ioc_link_reset_in_progress = 0; |
| 822 | ioc->ignore_loginfos = 0; |
| 823 | } |
| 824 | if (!(ioc->ctl_cmds.status & MPT2_CMD_COMPLETE)) { |
| 825 | printk(MPT2SAS_ERR_FMT "%s: timeout\n", ioc->name, |
| 826 | __func__); |
| 827 | _debug_dump_mf(mpi_request, karg.data_sge_offset); |
| 828 | if (!(ioc->ctl_cmds.status & MPT2_CMD_RESET)) |
| 829 | issue_reset = 1; |
| 830 | goto issue_host_reset; |
| 831 | } |
| 832 | |
| 833 | mpi_reply = ioc->ctl_cmds.reply; |
| 834 | ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK; |
| 835 | |
| 836 | #ifdef CONFIG_SCSI_MPT2SAS_LOGGING |
| 837 | if (mpi_reply->Function == MPI2_FUNCTION_SCSI_TASK_MGMT && |
| 838 | (ioc->logging_level & MPT_DEBUG_TM)) { |
| 839 | Mpi2SCSITaskManagementReply_t *tm_reply = |
| 840 | (Mpi2SCSITaskManagementReply_t *)mpi_reply; |
| 841 | |
| 842 | printk(MPT2SAS_DEBUG_FMT "TASK_MGMT: " |
| 843 | "IOCStatus(0x%04x), IOCLogInfo(0x%08x), " |
| 844 | "TerminationCount(0x%08x)\n", ioc->name, |
| 845 | tm_reply->IOCStatus, tm_reply->IOCLogInfo, |
| 846 | tm_reply->TerminationCount); |
| 847 | } |
| 848 | #endif |
| 849 | /* copy out xdata to user */ |
| 850 | if (data_in_sz) { |
| 851 | if (copy_to_user(karg.data_in_buf_ptr, data_in, |
| 852 | data_in_sz)) { |
| 853 | printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__, |
| 854 | __LINE__, __func__); |
| 855 | ret = -ENODATA; |
| 856 | goto out; |
| 857 | } |
| 858 | } |
| 859 | |
| 860 | /* copy out reply message frame to user */ |
| 861 | if (karg.max_reply_bytes) { |
| 862 | sz = min_t(u32, karg.max_reply_bytes, ioc->reply_sz); |
| 863 | if (copy_to_user(karg.reply_frame_buf_ptr, ioc->ctl_cmds.reply, |
| 864 | sz)) { |
| 865 | printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__, |
| 866 | __LINE__, __func__); |
| 867 | ret = -ENODATA; |
| 868 | goto out; |
| 869 | } |
| 870 | } |
| 871 | |
| 872 | /* copy out sense to user */ |
| 873 | if (karg.max_sense_bytes && (mpi_request->Function == |
| 874 | MPI2_FUNCTION_SCSI_IO_REQUEST || mpi_request->Function == |
| 875 | MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) { |
| 876 | sz = min_t(u32, karg.max_sense_bytes, SCSI_SENSE_BUFFERSIZE); |
| 877 | if (copy_to_user(karg.sense_data_ptr, priv_sense, sz)) { |
| 878 | printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__, |
| 879 | __LINE__, __func__); |
| 880 | ret = -ENODATA; |
| 881 | goto out; |
| 882 | } |
| 883 | } |
| 884 | |
| 885 | issue_host_reset: |
| 886 | if (issue_reset) { |
| 887 | if ((mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST || |
| 888 | mpi_request->Function == |
| 889 | MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) { |
| 890 | printk(MPT2SAS_INFO_FMT "issue target reset: handle " |
| 891 | "= (0x%04x)\n", ioc->name, |
| 892 | mpi_request->FunctionDependent1); |
| 893 | mutex_lock(&ioc->tm_cmds.mutex); |
| 894 | mpt2sas_scsih_issue_tm(ioc, |
| 895 | mpi_request->FunctionDependent1, 0, |
| 896 | MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 10); |
| 897 | ioc->tm_cmds.status = MPT2_CMD_NOT_USED; |
| 898 | mutex_unlock(&ioc->tm_cmds.mutex); |
| 899 | } else |
| 900 | mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, |
| 901 | FORCE_BIG_HAMMER); |
| 902 | } |
| 903 | |
| 904 | out: |
| 905 | |
| 906 | /* free memory associated with sg buffers */ |
| 907 | if (data_in) |
| 908 | pci_free_consistent(ioc->pdev, data_in_sz, data_in, |
| 909 | data_in_dma); |
| 910 | |
| 911 | if (data_out) |
| 912 | pci_free_consistent(ioc->pdev, data_out_sz, data_out, |
| 913 | data_out_dma); |
| 914 | |
| 915 | ioc->ctl_cmds.status = MPT2_CMD_NOT_USED; |
| 916 | mutex_unlock(&ioc->ctl_cmds.mutex); |
| 917 | return ret; |
| 918 | } |
| 919 | |
| 920 | /** |
| 921 | * _ctl_getiocinfo - main handler for MPT2IOCINFO opcode |
| 922 | * @arg - user space buffer containing ioctl content |
| 923 | */ |
| 924 | static long |
| 925 | _ctl_getiocinfo(void __user *arg) |
| 926 | { |
| 927 | struct mpt2_ioctl_iocinfo karg; |
| 928 | struct MPT2SAS_ADAPTER *ioc; |
| 929 | u8 revision; |
| 930 | |
| 931 | if (copy_from_user(&karg, arg, sizeof(karg))) { |
| 932 | printk(KERN_ERR "failure at %s:%d/%s()!\n", |
| 933 | __FILE__, __LINE__, __func__); |
| 934 | return -EFAULT; |
| 935 | } |
| 936 | if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc) |
| 937 | return -ENODEV; |
| 938 | |
| 939 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: enter\n", ioc->name, |
| 940 | __func__)); |
| 941 | |
| 942 | memset(&karg, 0 , sizeof(karg)); |
| 943 | karg.adapter_type = MPT2_IOCTL_INTERFACE_SAS2; |
| 944 | if (ioc->pfacts) |
| 945 | karg.port_number = ioc->pfacts[0].PortNumber; |
| 946 | pci_read_config_byte(ioc->pdev, PCI_CLASS_REVISION, &revision); |
| 947 | karg.hw_rev = revision; |
| 948 | karg.pci_id = ioc->pdev->device; |
| 949 | karg.subsystem_device = ioc->pdev->subsystem_device; |
| 950 | karg.subsystem_vendor = ioc->pdev->subsystem_vendor; |
| 951 | karg.pci_information.u.bits.bus = ioc->pdev->bus->number; |
| 952 | karg.pci_information.u.bits.device = PCI_SLOT(ioc->pdev->devfn); |
| 953 | karg.pci_information.u.bits.function = PCI_FUNC(ioc->pdev->devfn); |
| 954 | karg.pci_information.segment_id = pci_domain_nr(ioc->pdev->bus); |
| 955 | karg.firmware_version = ioc->facts.FWVersion.Word; |
Eric Moore | e5f9bb1 | 2009-04-21 15:40:01 -0600 | [diff] [blame] | 956 | strcpy(karg.driver_version, MPT2SAS_DRIVER_NAME); |
| 957 | strcat(karg.driver_version, "-"); |
| 958 | strcat(karg.driver_version, MPT2SAS_DRIVER_VERSION); |
Eric Moore | 635374e | 2009-03-09 01:21:12 -0600 | [diff] [blame] | 959 | karg.bios_version = le32_to_cpu(ioc->bios_pg3.BiosVersion); |
| 960 | |
| 961 | if (copy_to_user(arg, &karg, sizeof(karg))) { |
| 962 | printk(KERN_ERR "failure at %s:%d/%s()!\n", |
| 963 | __FILE__, __LINE__, __func__); |
| 964 | return -EFAULT; |
| 965 | } |
| 966 | return 0; |
| 967 | } |
| 968 | |
| 969 | /** |
| 970 | * _ctl_eventquery - main handler for MPT2EVENTQUERY opcode |
| 971 | * @arg - user space buffer containing ioctl content |
| 972 | */ |
| 973 | static long |
| 974 | _ctl_eventquery(void __user *arg) |
| 975 | { |
| 976 | struct mpt2_ioctl_eventquery karg; |
| 977 | struct MPT2SAS_ADAPTER *ioc; |
| 978 | |
| 979 | if (copy_from_user(&karg, arg, sizeof(karg))) { |
| 980 | printk(KERN_ERR "failure at %s:%d/%s()!\n", |
| 981 | __FILE__, __LINE__, __func__); |
| 982 | return -EFAULT; |
| 983 | } |
| 984 | if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc) |
| 985 | return -ENODEV; |
| 986 | |
| 987 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: enter\n", ioc->name, |
| 988 | __func__)); |
| 989 | |
| 990 | karg.event_entries = MPT2SAS_CTL_EVENT_LOG_SIZE; |
| 991 | memcpy(karg.event_types, ioc->event_type, |
| 992 | MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32)); |
| 993 | |
| 994 | if (copy_to_user(arg, &karg, sizeof(karg))) { |
| 995 | printk(KERN_ERR "failure at %s:%d/%s()!\n", |
| 996 | __FILE__, __LINE__, __func__); |
| 997 | return -EFAULT; |
| 998 | } |
| 999 | return 0; |
| 1000 | } |
| 1001 | |
| 1002 | /** |
| 1003 | * _ctl_eventenable - main handler for MPT2EVENTENABLE opcode |
| 1004 | * @arg - user space buffer containing ioctl content |
| 1005 | */ |
| 1006 | static long |
| 1007 | _ctl_eventenable(void __user *arg) |
| 1008 | { |
| 1009 | struct mpt2_ioctl_eventenable karg; |
| 1010 | struct MPT2SAS_ADAPTER *ioc; |
| 1011 | |
| 1012 | if (copy_from_user(&karg, arg, sizeof(karg))) { |
| 1013 | printk(KERN_ERR "failure at %s:%d/%s()!\n", |
| 1014 | __FILE__, __LINE__, __func__); |
| 1015 | return -EFAULT; |
| 1016 | } |
| 1017 | if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc) |
| 1018 | return -ENODEV; |
| 1019 | |
| 1020 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: enter\n", ioc->name, |
| 1021 | __func__)); |
| 1022 | |
| 1023 | if (ioc->event_log) |
| 1024 | return 0; |
| 1025 | memcpy(ioc->event_type, karg.event_types, |
| 1026 | MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32)); |
| 1027 | mpt2sas_base_validate_event_type(ioc, ioc->event_type); |
| 1028 | |
| 1029 | /* initialize event_log */ |
| 1030 | ioc->event_context = 0; |
| 1031 | ioc->aen_event_read_flag = 0; |
| 1032 | ioc->event_log = kcalloc(MPT2SAS_CTL_EVENT_LOG_SIZE, |
| 1033 | sizeof(struct MPT2_IOCTL_EVENTS), GFP_KERNEL); |
| 1034 | if (!ioc->event_log) { |
| 1035 | printk(KERN_ERR "failure at %s:%d/%s()!\n", |
| 1036 | __FILE__, __LINE__, __func__); |
| 1037 | return -ENOMEM; |
| 1038 | } |
| 1039 | return 0; |
| 1040 | } |
| 1041 | |
| 1042 | /** |
| 1043 | * _ctl_eventreport - main handler for MPT2EVENTREPORT opcode |
| 1044 | * @arg - user space buffer containing ioctl content |
| 1045 | */ |
| 1046 | static long |
| 1047 | _ctl_eventreport(void __user *arg) |
| 1048 | { |
| 1049 | struct mpt2_ioctl_eventreport karg; |
| 1050 | struct MPT2SAS_ADAPTER *ioc; |
| 1051 | u32 number_bytes, max_events, max; |
| 1052 | struct mpt2_ioctl_eventreport __user *uarg = arg; |
| 1053 | |
| 1054 | if (copy_from_user(&karg, arg, sizeof(karg))) { |
| 1055 | printk(KERN_ERR "failure at %s:%d/%s()!\n", |
| 1056 | __FILE__, __LINE__, __func__); |
| 1057 | return -EFAULT; |
| 1058 | } |
| 1059 | if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc) |
| 1060 | return -ENODEV; |
| 1061 | |
| 1062 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: enter\n", ioc->name, |
| 1063 | __func__)); |
| 1064 | |
| 1065 | number_bytes = karg.hdr.max_data_size - |
| 1066 | sizeof(struct mpt2_ioctl_header); |
| 1067 | max_events = number_bytes/sizeof(struct MPT2_IOCTL_EVENTS); |
| 1068 | max = min_t(u32, MPT2SAS_CTL_EVENT_LOG_SIZE, max_events); |
| 1069 | |
| 1070 | /* If fewer than 1 event is requested, there must have |
| 1071 | * been some type of error. |
| 1072 | */ |
| 1073 | if (!max || !ioc->event_log) |
| 1074 | return -ENODATA; |
| 1075 | |
| 1076 | number_bytes = max * sizeof(struct MPT2_IOCTL_EVENTS); |
| 1077 | if (copy_to_user(uarg->event_data, ioc->event_log, number_bytes)) { |
| 1078 | printk(KERN_ERR "failure at %s:%d/%s()!\n", |
| 1079 | __FILE__, __LINE__, __func__); |
| 1080 | return -EFAULT; |
| 1081 | } |
| 1082 | |
| 1083 | /* reset flag so SIGIO can restart */ |
| 1084 | ioc->aen_event_read_flag = 0; |
| 1085 | return 0; |
| 1086 | } |
| 1087 | |
| 1088 | /** |
| 1089 | * _ctl_do_reset - main handler for MPT2HARDRESET opcode |
| 1090 | * @arg - user space buffer containing ioctl content |
| 1091 | */ |
| 1092 | static long |
| 1093 | _ctl_do_reset(void __user *arg) |
| 1094 | { |
| 1095 | struct mpt2_ioctl_diag_reset karg; |
| 1096 | struct MPT2SAS_ADAPTER *ioc; |
| 1097 | int retval; |
| 1098 | |
| 1099 | if (copy_from_user(&karg, arg, sizeof(karg))) { |
| 1100 | printk(KERN_ERR "failure at %s:%d/%s()!\n", |
| 1101 | __FILE__, __LINE__, __func__); |
| 1102 | return -EFAULT; |
| 1103 | } |
| 1104 | if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc) |
| 1105 | return -ENODEV; |
| 1106 | |
| 1107 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: enter\n", ioc->name, |
| 1108 | __func__)); |
| 1109 | |
| 1110 | retval = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, |
| 1111 | FORCE_BIG_HAMMER); |
| 1112 | printk(MPT2SAS_INFO_FMT "host reset: %s\n", |
| 1113 | ioc->name, ((!retval) ? "SUCCESS" : "FAILED")); |
| 1114 | return 0; |
| 1115 | } |
| 1116 | |
| 1117 | /** |
| 1118 | * _ctl_btdh_search_sas_device - searching for sas device |
| 1119 | * @ioc: per adapter object |
| 1120 | * @btdh: btdh ioctl payload |
| 1121 | */ |
| 1122 | static int |
| 1123 | _ctl_btdh_search_sas_device(struct MPT2SAS_ADAPTER *ioc, |
| 1124 | struct mpt2_ioctl_btdh_mapping *btdh) |
| 1125 | { |
| 1126 | struct _sas_device *sas_device; |
| 1127 | unsigned long flags; |
| 1128 | int rc = 0; |
| 1129 | |
| 1130 | if (list_empty(&ioc->sas_device_list)) |
| 1131 | return rc; |
| 1132 | |
| 1133 | spin_lock_irqsave(&ioc->sas_device_lock, flags); |
| 1134 | list_for_each_entry(sas_device, &ioc->sas_device_list, list) { |
| 1135 | if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF && |
| 1136 | btdh->handle == sas_device->handle) { |
| 1137 | btdh->bus = sas_device->channel; |
| 1138 | btdh->id = sas_device->id; |
| 1139 | rc = 1; |
| 1140 | goto out; |
| 1141 | } else if (btdh->bus == sas_device->channel && btdh->id == |
| 1142 | sas_device->id && btdh->handle == 0xFFFF) { |
| 1143 | btdh->handle = sas_device->handle; |
| 1144 | rc = 1; |
| 1145 | goto out; |
| 1146 | } |
| 1147 | } |
| 1148 | out: |
| 1149 | spin_unlock_irqrestore(&ioc->sas_device_lock, flags); |
| 1150 | return rc; |
| 1151 | } |
| 1152 | |
| 1153 | /** |
| 1154 | * _ctl_btdh_search_raid_device - searching for raid device |
| 1155 | * @ioc: per adapter object |
| 1156 | * @btdh: btdh ioctl payload |
| 1157 | */ |
| 1158 | static int |
| 1159 | _ctl_btdh_search_raid_device(struct MPT2SAS_ADAPTER *ioc, |
| 1160 | struct mpt2_ioctl_btdh_mapping *btdh) |
| 1161 | { |
| 1162 | struct _raid_device *raid_device; |
| 1163 | unsigned long flags; |
| 1164 | int rc = 0; |
| 1165 | |
| 1166 | if (list_empty(&ioc->raid_device_list)) |
| 1167 | return rc; |
| 1168 | |
| 1169 | spin_lock_irqsave(&ioc->raid_device_lock, flags); |
| 1170 | list_for_each_entry(raid_device, &ioc->raid_device_list, list) { |
| 1171 | if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF && |
| 1172 | btdh->handle == raid_device->handle) { |
| 1173 | btdh->bus = raid_device->channel; |
| 1174 | btdh->id = raid_device->id; |
| 1175 | rc = 1; |
| 1176 | goto out; |
| 1177 | } else if (btdh->bus == raid_device->channel && btdh->id == |
| 1178 | raid_device->id && btdh->handle == 0xFFFF) { |
| 1179 | btdh->handle = raid_device->handle; |
| 1180 | rc = 1; |
| 1181 | goto out; |
| 1182 | } |
| 1183 | } |
| 1184 | out: |
| 1185 | spin_unlock_irqrestore(&ioc->raid_device_lock, flags); |
| 1186 | return rc; |
| 1187 | } |
| 1188 | |
| 1189 | /** |
| 1190 | * _ctl_btdh_mapping - main handler for MPT2BTDHMAPPING opcode |
| 1191 | * @arg - user space buffer containing ioctl content |
| 1192 | */ |
| 1193 | static long |
| 1194 | _ctl_btdh_mapping(void __user *arg) |
| 1195 | { |
| 1196 | struct mpt2_ioctl_btdh_mapping karg; |
| 1197 | struct MPT2SAS_ADAPTER *ioc; |
| 1198 | int rc; |
| 1199 | |
| 1200 | if (copy_from_user(&karg, arg, sizeof(karg))) { |
| 1201 | printk(KERN_ERR "failure at %s:%d/%s()!\n", |
| 1202 | __FILE__, __LINE__, __func__); |
| 1203 | return -EFAULT; |
| 1204 | } |
| 1205 | if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc) |
| 1206 | return -ENODEV; |
| 1207 | |
| 1208 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name, |
| 1209 | __func__)); |
| 1210 | |
| 1211 | rc = _ctl_btdh_search_sas_device(ioc, &karg); |
| 1212 | if (!rc) |
| 1213 | _ctl_btdh_search_raid_device(ioc, &karg); |
| 1214 | |
| 1215 | if (copy_to_user(arg, &karg, sizeof(karg))) { |
| 1216 | printk(KERN_ERR "failure at %s:%d/%s()!\n", |
| 1217 | __FILE__, __LINE__, __func__); |
| 1218 | return -EFAULT; |
| 1219 | } |
| 1220 | return 0; |
| 1221 | } |
| 1222 | |
| 1223 | /** |
| 1224 | * _ctl_diag_capability - return diag buffer capability |
| 1225 | * @ioc: per adapter object |
| 1226 | * @buffer_type: specifies either TRACE or SNAPSHOT |
| 1227 | * |
| 1228 | * returns 1 when diag buffer support is enabled in firmware |
| 1229 | */ |
| 1230 | static u8 |
| 1231 | _ctl_diag_capability(struct MPT2SAS_ADAPTER *ioc, u8 buffer_type) |
| 1232 | { |
| 1233 | u8 rc = 0; |
| 1234 | |
| 1235 | switch (buffer_type) { |
| 1236 | case MPI2_DIAG_BUF_TYPE_TRACE: |
| 1237 | if (ioc->facts.IOCCapabilities & |
| 1238 | MPI2_IOCFACTS_CAPABILITY_DIAG_TRACE_BUFFER) |
| 1239 | rc = 1; |
| 1240 | break; |
| 1241 | case MPI2_DIAG_BUF_TYPE_SNAPSHOT: |
| 1242 | if (ioc->facts.IOCCapabilities & |
| 1243 | MPI2_IOCFACTS_CAPABILITY_SNAPSHOT_BUFFER) |
| 1244 | rc = 1; |
| 1245 | break; |
| 1246 | } |
| 1247 | |
| 1248 | return rc; |
| 1249 | } |
| 1250 | |
| 1251 | /** |
| 1252 | * _ctl_diag_register - application register with driver |
| 1253 | * @arg - user space buffer containing ioctl content |
| 1254 | * @state - NON_BLOCKING or BLOCKING |
| 1255 | * |
| 1256 | * This will allow the driver to setup any required buffers that will be |
| 1257 | * needed by firmware to communicate with the driver. |
| 1258 | */ |
| 1259 | static long |
| 1260 | _ctl_diag_register(void __user *arg, enum block_state state) |
| 1261 | { |
| 1262 | struct mpt2_diag_register karg; |
| 1263 | struct MPT2SAS_ADAPTER *ioc; |
| 1264 | int rc, i; |
| 1265 | void *request_data = NULL; |
| 1266 | dma_addr_t request_data_dma; |
| 1267 | u32 request_data_sz = 0; |
| 1268 | Mpi2DiagBufferPostRequest_t *mpi_request; |
| 1269 | Mpi2DiagBufferPostReply_t *mpi_reply; |
| 1270 | u8 buffer_type; |
| 1271 | unsigned long timeleft; |
| 1272 | u16 smid; |
| 1273 | u16 ioc_status; |
| 1274 | u8 issue_reset = 0; |
| 1275 | |
| 1276 | if (copy_from_user(&karg, arg, sizeof(karg))) { |
| 1277 | printk(KERN_ERR "failure at %s:%d/%s()!\n", |
| 1278 | __FILE__, __LINE__, __func__); |
| 1279 | return -EFAULT; |
| 1280 | } |
| 1281 | if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc) |
| 1282 | return -ENODEV; |
| 1283 | |
| 1284 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name, |
| 1285 | __func__)); |
| 1286 | |
| 1287 | buffer_type = karg.buffer_type; |
| 1288 | if (!_ctl_diag_capability(ioc, buffer_type)) { |
| 1289 | printk(MPT2SAS_ERR_FMT "%s: doesn't have capability for " |
| 1290 | "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type); |
| 1291 | return -EPERM; |
| 1292 | } |
| 1293 | |
| 1294 | if (ioc->diag_buffer_status[buffer_type] & |
| 1295 | MPT2_DIAG_BUFFER_IS_REGISTERED) { |
| 1296 | printk(MPT2SAS_ERR_FMT "%s: already has a registered " |
| 1297 | "buffer for buffer_type(0x%02x)\n", ioc->name, __func__, |
| 1298 | buffer_type); |
| 1299 | return -EINVAL; |
| 1300 | } |
| 1301 | |
| 1302 | if (karg.requested_buffer_size % 4) { |
| 1303 | printk(MPT2SAS_ERR_FMT "%s: the requested_buffer_size " |
| 1304 | "is not 4 byte aligned\n", ioc->name, __func__); |
| 1305 | return -EINVAL; |
| 1306 | } |
| 1307 | |
| 1308 | if (state == NON_BLOCKING && !mutex_trylock(&ioc->ctl_cmds.mutex)) |
| 1309 | return -EAGAIN; |
| 1310 | else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex)) |
| 1311 | return -ERESTARTSYS; |
| 1312 | |
| 1313 | if (ioc->ctl_cmds.status != MPT2_CMD_NOT_USED) { |
| 1314 | printk(MPT2SAS_ERR_FMT "%s: ctl_cmd in use\n", |
| 1315 | ioc->name, __func__); |
| 1316 | rc = -EAGAIN; |
| 1317 | goto out; |
| 1318 | } |
| 1319 | |
| 1320 | smid = mpt2sas_base_get_smid(ioc, ioc->ctl_cb_idx); |
| 1321 | if (!smid) { |
| 1322 | printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", |
| 1323 | ioc->name, __func__); |
| 1324 | rc = -EAGAIN; |
| 1325 | goto out; |
| 1326 | } |
| 1327 | |
| 1328 | rc = 0; |
| 1329 | ioc->ctl_cmds.status = MPT2_CMD_PENDING; |
| 1330 | memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz); |
| 1331 | mpi_request = mpt2sas_base_get_msg_frame(ioc, smid); |
| 1332 | ioc->ctl_cmds.smid = smid; |
| 1333 | |
| 1334 | request_data = ioc->diag_buffer[buffer_type]; |
| 1335 | request_data_sz = karg.requested_buffer_size; |
| 1336 | ioc->unique_id[buffer_type] = karg.unique_id; |
| 1337 | ioc->diag_buffer_status[buffer_type] = 0; |
| 1338 | memcpy(ioc->product_specific[buffer_type], karg.product_specific, |
| 1339 | MPT2_PRODUCT_SPECIFIC_DWORDS); |
| 1340 | ioc->diagnostic_flags[buffer_type] = karg.diagnostic_flags; |
| 1341 | |
| 1342 | if (request_data) { |
| 1343 | request_data_dma = ioc->diag_buffer_dma[buffer_type]; |
| 1344 | if (request_data_sz != ioc->diag_buffer_sz[buffer_type]) { |
| 1345 | pci_free_consistent(ioc->pdev, |
| 1346 | ioc->diag_buffer_sz[buffer_type], |
| 1347 | request_data, request_data_dma); |
| 1348 | request_data = NULL; |
| 1349 | } |
| 1350 | } |
| 1351 | |
| 1352 | if (request_data == NULL) { |
| 1353 | ioc->diag_buffer_sz[buffer_type] = 0; |
| 1354 | ioc->diag_buffer_dma[buffer_type] = 0; |
| 1355 | request_data = pci_alloc_consistent( |
| 1356 | ioc->pdev, request_data_sz, &request_data_dma); |
| 1357 | if (request_data == NULL) { |
| 1358 | printk(MPT2SAS_ERR_FMT "%s: failed allocating memory" |
| 1359 | " for diag buffers, requested size(%d)\n", |
| 1360 | ioc->name, __func__, request_data_sz); |
| 1361 | mpt2sas_base_free_smid(ioc, smid); |
| 1362 | return -ENOMEM; |
| 1363 | } |
| 1364 | ioc->diag_buffer[buffer_type] = request_data; |
| 1365 | ioc->diag_buffer_sz[buffer_type] = request_data_sz; |
| 1366 | ioc->diag_buffer_dma[buffer_type] = request_data_dma; |
| 1367 | } |
| 1368 | |
| 1369 | mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST; |
| 1370 | mpi_request->BufferType = karg.buffer_type; |
| 1371 | mpi_request->Flags = cpu_to_le32(karg.diagnostic_flags); |
| 1372 | mpi_request->BufferAddress = cpu_to_le64(request_data_dma); |
| 1373 | mpi_request->BufferLength = cpu_to_le32(request_data_sz); |
| 1374 | |
| 1375 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: diag_buffer(0x%p), " |
| 1376 | "dma(0x%llx), sz(%d)\n", ioc->name, __func__, request_data, |
| 1377 | (unsigned long long)request_data_dma, mpi_request->BufferLength)); |
| 1378 | |
| 1379 | for (i = 0; i < MPT2_PRODUCT_SPECIFIC_DWORDS; i++) |
| 1380 | mpi_request->ProductSpecific[i] = |
| 1381 | cpu_to_le32(ioc->product_specific[buffer_type][i]); |
| 1382 | |
| 1383 | mpt2sas_base_put_smid_default(ioc, smid, mpi_request->VF_ID); |
| 1384 | timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done, |
| 1385 | MPT2_IOCTL_DEFAULT_TIMEOUT*HZ); |
| 1386 | |
| 1387 | if (!(ioc->ctl_cmds.status & MPT2_CMD_COMPLETE)) { |
| 1388 | printk(MPT2SAS_ERR_FMT "%s: timeout\n", ioc->name, |
| 1389 | __func__); |
| 1390 | _debug_dump_mf(mpi_request, |
| 1391 | sizeof(Mpi2DiagBufferPostRequest_t)/4); |
| 1392 | if (!(ioc->ctl_cmds.status & MPT2_CMD_RESET)) |
| 1393 | issue_reset = 1; |
| 1394 | goto issue_host_reset; |
| 1395 | } |
| 1396 | |
| 1397 | /* process the completed Reply Message Frame */ |
| 1398 | if ((ioc->ctl_cmds.status & MPT2_CMD_REPLY_VALID) == 0) { |
| 1399 | printk(MPT2SAS_ERR_FMT "%s: no reply message\n", |
| 1400 | ioc->name, __func__); |
| 1401 | rc = -EFAULT; |
| 1402 | goto out; |
| 1403 | } |
| 1404 | |
| 1405 | mpi_reply = ioc->ctl_cmds.reply; |
| 1406 | ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK; |
| 1407 | |
| 1408 | if (ioc_status == MPI2_IOCSTATUS_SUCCESS) { |
| 1409 | ioc->diag_buffer_status[buffer_type] |= |
| 1410 | MPT2_DIAG_BUFFER_IS_REGISTERED; |
| 1411 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: success\n", |
| 1412 | ioc->name, __func__)); |
| 1413 | } else { |
| 1414 | printk(MPT2SAS_DEBUG_FMT "%s: ioc_status(0x%04x) " |
| 1415 | "log_info(0x%08x)\n", ioc->name, __func__, |
| 1416 | ioc_status, mpi_reply->IOCLogInfo); |
| 1417 | rc = -EFAULT; |
| 1418 | } |
| 1419 | |
| 1420 | issue_host_reset: |
| 1421 | if (issue_reset) |
| 1422 | mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, |
| 1423 | FORCE_BIG_HAMMER); |
| 1424 | |
| 1425 | out: |
| 1426 | |
| 1427 | if (rc && request_data) |
| 1428 | pci_free_consistent(ioc->pdev, request_data_sz, |
| 1429 | request_data, request_data_dma); |
| 1430 | |
| 1431 | ioc->ctl_cmds.status = MPT2_CMD_NOT_USED; |
| 1432 | mutex_unlock(&ioc->ctl_cmds.mutex); |
| 1433 | return rc; |
| 1434 | } |
| 1435 | |
| 1436 | /** |
| 1437 | * _ctl_diag_unregister - application unregister with driver |
| 1438 | * @arg - user space buffer containing ioctl content |
| 1439 | * |
| 1440 | * This will allow the driver to cleanup any memory allocated for diag |
| 1441 | * messages and to free up any resources. |
| 1442 | */ |
| 1443 | static long |
| 1444 | _ctl_diag_unregister(void __user *arg) |
| 1445 | { |
| 1446 | struct mpt2_diag_unregister karg; |
| 1447 | struct MPT2SAS_ADAPTER *ioc; |
| 1448 | void *request_data; |
| 1449 | dma_addr_t request_data_dma; |
| 1450 | u32 request_data_sz; |
| 1451 | u8 buffer_type; |
| 1452 | |
| 1453 | if (copy_from_user(&karg, arg, sizeof(karg))) { |
| 1454 | printk(KERN_ERR "failure at %s:%d/%s()!\n", |
| 1455 | __FILE__, __LINE__, __func__); |
| 1456 | return -EFAULT; |
| 1457 | } |
| 1458 | if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc) |
| 1459 | return -ENODEV; |
| 1460 | |
| 1461 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name, |
| 1462 | __func__)); |
| 1463 | |
| 1464 | buffer_type = karg.unique_id & 0x000000ff; |
| 1465 | if (!_ctl_diag_capability(ioc, buffer_type)) { |
| 1466 | printk(MPT2SAS_ERR_FMT "%s: doesn't have capability for " |
| 1467 | "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type); |
| 1468 | return -EPERM; |
| 1469 | } |
| 1470 | |
| 1471 | if ((ioc->diag_buffer_status[buffer_type] & |
| 1472 | MPT2_DIAG_BUFFER_IS_REGISTERED) == 0) { |
| 1473 | printk(MPT2SAS_ERR_FMT "%s: buffer_type(0x%02x) is not " |
| 1474 | "registered\n", ioc->name, __func__, buffer_type); |
| 1475 | return -EINVAL; |
| 1476 | } |
| 1477 | if ((ioc->diag_buffer_status[buffer_type] & |
| 1478 | MPT2_DIAG_BUFFER_IS_RELEASED) == 0) { |
| 1479 | printk(MPT2SAS_ERR_FMT "%s: buffer_type(0x%02x) has not been " |
| 1480 | "released\n", ioc->name, __func__, buffer_type); |
| 1481 | return -EINVAL; |
| 1482 | } |
| 1483 | |
| 1484 | if (karg.unique_id != ioc->unique_id[buffer_type]) { |
| 1485 | printk(MPT2SAS_ERR_FMT "%s: unique_id(0x%08x) is not " |
| 1486 | "registered\n", ioc->name, __func__, karg.unique_id); |
| 1487 | return -EINVAL; |
| 1488 | } |
| 1489 | |
| 1490 | request_data = ioc->diag_buffer[buffer_type]; |
| 1491 | if (!request_data) { |
| 1492 | printk(MPT2SAS_ERR_FMT "%s: doesn't have memory allocated for " |
| 1493 | "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type); |
| 1494 | return -ENOMEM; |
| 1495 | } |
| 1496 | |
| 1497 | request_data_sz = ioc->diag_buffer_sz[buffer_type]; |
| 1498 | request_data_dma = ioc->diag_buffer_dma[buffer_type]; |
| 1499 | pci_free_consistent(ioc->pdev, request_data_sz, |
| 1500 | request_data, request_data_dma); |
| 1501 | ioc->diag_buffer[buffer_type] = NULL; |
| 1502 | ioc->diag_buffer_status[buffer_type] = 0; |
| 1503 | return 0; |
| 1504 | } |
| 1505 | |
| 1506 | /** |
| 1507 | * _ctl_diag_query - query relevant info associated with diag buffers |
| 1508 | * @arg - user space buffer containing ioctl content |
| 1509 | * |
| 1510 | * The application will send only buffer_type and unique_id. Driver will |
| 1511 | * inspect unique_id first, if valid, fill in all the info. If unique_id is |
| 1512 | * 0x00, the driver will return info specified by Buffer Type. |
| 1513 | */ |
| 1514 | static long |
| 1515 | _ctl_diag_query(void __user *arg) |
| 1516 | { |
| 1517 | struct mpt2_diag_query karg; |
| 1518 | struct MPT2SAS_ADAPTER *ioc; |
| 1519 | void *request_data; |
| 1520 | int i; |
| 1521 | u8 buffer_type; |
| 1522 | |
| 1523 | if (copy_from_user(&karg, arg, sizeof(karg))) { |
| 1524 | printk(KERN_ERR "failure at %s:%d/%s()!\n", |
| 1525 | __FILE__, __LINE__, __func__); |
| 1526 | return -EFAULT; |
| 1527 | } |
| 1528 | if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc) |
| 1529 | return -ENODEV; |
| 1530 | |
| 1531 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name, |
| 1532 | __func__)); |
| 1533 | |
| 1534 | karg.application_flags = 0; |
| 1535 | buffer_type = karg.buffer_type; |
| 1536 | |
| 1537 | if (!_ctl_diag_capability(ioc, buffer_type)) { |
| 1538 | printk(MPT2SAS_ERR_FMT "%s: doesn't have capability for " |
| 1539 | "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type); |
| 1540 | return -EPERM; |
| 1541 | } |
| 1542 | |
| 1543 | if ((ioc->diag_buffer_status[buffer_type] & |
| 1544 | MPT2_DIAG_BUFFER_IS_REGISTERED) == 0) { |
| 1545 | printk(MPT2SAS_ERR_FMT "%s: buffer_type(0x%02x) is not " |
| 1546 | "registered\n", ioc->name, __func__, buffer_type); |
| 1547 | return -EINVAL; |
| 1548 | } |
| 1549 | |
| 1550 | if (karg.unique_id & 0xffffff00) { |
| 1551 | if (karg.unique_id != ioc->unique_id[buffer_type]) { |
| 1552 | printk(MPT2SAS_ERR_FMT "%s: unique_id(0x%08x) is not " |
| 1553 | "registered\n", ioc->name, __func__, |
| 1554 | karg.unique_id); |
| 1555 | return -EINVAL; |
| 1556 | } |
| 1557 | } |
| 1558 | |
| 1559 | request_data = ioc->diag_buffer[buffer_type]; |
| 1560 | if (!request_data) { |
| 1561 | printk(MPT2SAS_ERR_FMT "%s: doesn't have buffer for " |
| 1562 | "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type); |
| 1563 | return -ENOMEM; |
| 1564 | } |
| 1565 | |
| 1566 | if (ioc->diag_buffer_status[buffer_type] & MPT2_DIAG_BUFFER_IS_RELEASED) |
| 1567 | karg.application_flags = (MPT2_APP_FLAGS_APP_OWNED | |
| 1568 | MPT2_APP_FLAGS_BUFFER_VALID); |
| 1569 | else |
| 1570 | karg.application_flags = (MPT2_APP_FLAGS_APP_OWNED | |
| 1571 | MPT2_APP_FLAGS_BUFFER_VALID | |
| 1572 | MPT2_APP_FLAGS_FW_BUFFER_ACCESS); |
| 1573 | |
| 1574 | for (i = 0; i < MPT2_PRODUCT_SPECIFIC_DWORDS; i++) |
| 1575 | karg.product_specific[i] = |
| 1576 | ioc->product_specific[buffer_type][i]; |
| 1577 | |
| 1578 | karg.total_buffer_size = ioc->diag_buffer_sz[buffer_type]; |
| 1579 | karg.driver_added_buffer_size = 0; |
| 1580 | karg.unique_id = ioc->unique_id[buffer_type]; |
| 1581 | karg.diagnostic_flags = ioc->diagnostic_flags[buffer_type]; |
| 1582 | |
| 1583 | if (copy_to_user(arg, &karg, sizeof(struct mpt2_diag_query))) { |
| 1584 | printk(MPT2SAS_ERR_FMT "%s: unable to write mpt2_diag_query " |
| 1585 | "data @ %p\n", ioc->name, __func__, arg); |
| 1586 | return -EFAULT; |
| 1587 | } |
| 1588 | return 0; |
| 1589 | } |
| 1590 | |
| 1591 | /** |
Eric Moore | 99bb214 | 2009-04-21 15:42:13 -0600 | [diff] [blame] | 1592 | * _ctl_send_release - Diag Release Message |
| 1593 | * @ioc: per adapter object |
| 1594 | * @buffer_type - specifies either TRACE or SNAPSHOT |
| 1595 | * @issue_reset - specifies whether host reset is required. |
| 1596 | * |
| 1597 | */ |
| 1598 | static int |
| 1599 | _ctl_send_release(struct MPT2SAS_ADAPTER *ioc, u8 buffer_type, u8 *issue_reset) |
| 1600 | { |
| 1601 | Mpi2DiagReleaseRequest_t *mpi_request; |
| 1602 | Mpi2DiagReleaseReply_t *mpi_reply; |
| 1603 | u16 smid; |
| 1604 | u16 ioc_status; |
| 1605 | u32 ioc_state; |
| 1606 | int rc; |
| 1607 | unsigned long timeleft; |
| 1608 | |
| 1609 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name, |
| 1610 | __func__)); |
| 1611 | |
| 1612 | rc = 0; |
| 1613 | *issue_reset = 0; |
| 1614 | |
| 1615 | ioc_state = mpt2sas_base_get_iocstate(ioc, 1); |
| 1616 | if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { |
| 1617 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: " |
| 1618 | "skipping due to FAULT state\n", ioc->name, |
| 1619 | __func__)); |
| 1620 | rc = -EAGAIN; |
| 1621 | goto out; |
| 1622 | } |
| 1623 | |
| 1624 | if (ioc->ctl_cmds.status != MPT2_CMD_NOT_USED) { |
| 1625 | printk(MPT2SAS_ERR_FMT "%s: ctl_cmd in use\n", |
| 1626 | ioc->name, __func__); |
| 1627 | rc = -EAGAIN; |
| 1628 | goto out; |
| 1629 | } |
| 1630 | |
| 1631 | smid = mpt2sas_base_get_smid(ioc, ioc->ctl_cb_idx); |
| 1632 | if (!smid) { |
| 1633 | printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", |
| 1634 | ioc->name, __func__); |
| 1635 | rc = -EAGAIN; |
| 1636 | goto out; |
| 1637 | } |
| 1638 | |
| 1639 | ioc->ctl_cmds.status = MPT2_CMD_PENDING; |
| 1640 | memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz); |
| 1641 | mpi_request = mpt2sas_base_get_msg_frame(ioc, smid); |
| 1642 | ioc->ctl_cmds.smid = smid; |
| 1643 | |
| 1644 | mpi_request->Function = MPI2_FUNCTION_DIAG_RELEASE; |
| 1645 | mpi_request->BufferType = buffer_type; |
| 1646 | |
| 1647 | mpt2sas_base_put_smid_default(ioc, smid, mpi_request->VF_ID); |
| 1648 | timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done, |
| 1649 | MPT2_IOCTL_DEFAULT_TIMEOUT*HZ); |
| 1650 | |
| 1651 | if (!(ioc->ctl_cmds.status & MPT2_CMD_COMPLETE)) { |
| 1652 | printk(MPT2SAS_ERR_FMT "%s: timeout\n", ioc->name, |
| 1653 | __func__); |
| 1654 | _debug_dump_mf(mpi_request, |
| 1655 | sizeof(Mpi2DiagReleaseRequest_t)/4); |
| 1656 | if (!(ioc->ctl_cmds.status & MPT2_CMD_RESET)) |
| 1657 | *issue_reset = 1; |
| 1658 | rc = -EFAULT; |
| 1659 | goto out; |
| 1660 | } |
| 1661 | |
| 1662 | /* process the completed Reply Message Frame */ |
| 1663 | if ((ioc->ctl_cmds.status & MPT2_CMD_REPLY_VALID) == 0) { |
| 1664 | printk(MPT2SAS_ERR_FMT "%s: no reply message\n", |
| 1665 | ioc->name, __func__); |
| 1666 | rc = -EFAULT; |
| 1667 | goto out; |
| 1668 | } |
| 1669 | |
| 1670 | mpi_reply = ioc->ctl_cmds.reply; |
| 1671 | ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK; |
| 1672 | |
| 1673 | if (ioc_status == MPI2_IOCSTATUS_SUCCESS) { |
| 1674 | ioc->diag_buffer_status[buffer_type] |= |
| 1675 | MPT2_DIAG_BUFFER_IS_RELEASED; |
| 1676 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: success\n", |
| 1677 | ioc->name, __func__)); |
| 1678 | } else { |
| 1679 | printk(MPT2SAS_DEBUG_FMT "%s: ioc_status(0x%04x) " |
| 1680 | "log_info(0x%08x)\n", ioc->name, __func__, |
| 1681 | ioc_status, mpi_reply->IOCLogInfo); |
| 1682 | rc = -EFAULT; |
| 1683 | } |
| 1684 | |
| 1685 | out: |
| 1686 | ioc->ctl_cmds.status = MPT2_CMD_NOT_USED; |
| 1687 | return rc; |
| 1688 | } |
| 1689 | |
| 1690 | /** |
Eric Moore | 635374e | 2009-03-09 01:21:12 -0600 | [diff] [blame] | 1691 | * _ctl_diag_release - request to send Diag Release Message to firmware |
| 1692 | * @arg - user space buffer containing ioctl content |
| 1693 | * @state - NON_BLOCKING or BLOCKING |
| 1694 | * |
| 1695 | * This allows ownership of the specified buffer to returned to the driver, |
| 1696 | * allowing an application to read the buffer without fear that firmware is |
| 1697 | * overwritting information in the buffer. |
| 1698 | */ |
| 1699 | static long |
| 1700 | _ctl_diag_release(void __user *arg, enum block_state state) |
| 1701 | { |
| 1702 | struct mpt2_diag_release karg; |
| 1703 | struct MPT2SAS_ADAPTER *ioc; |
| 1704 | void *request_data; |
| 1705 | int rc; |
Eric Moore | 635374e | 2009-03-09 01:21:12 -0600 | [diff] [blame] | 1706 | u8 buffer_type; |
Eric Moore | 635374e | 2009-03-09 01:21:12 -0600 | [diff] [blame] | 1707 | u8 issue_reset = 0; |
| 1708 | |
| 1709 | if (copy_from_user(&karg, arg, sizeof(karg))) { |
| 1710 | printk(KERN_ERR "failure at %s:%d/%s()!\n", |
| 1711 | __FILE__, __LINE__, __func__); |
| 1712 | return -EFAULT; |
| 1713 | } |
| 1714 | if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc) |
| 1715 | return -ENODEV; |
| 1716 | |
| 1717 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name, |
| 1718 | __func__)); |
| 1719 | |
| 1720 | buffer_type = karg.unique_id & 0x000000ff; |
| 1721 | if (!_ctl_diag_capability(ioc, buffer_type)) { |
| 1722 | printk(MPT2SAS_ERR_FMT "%s: doesn't have capability for " |
| 1723 | "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type); |
| 1724 | return -EPERM; |
| 1725 | } |
| 1726 | |
| 1727 | if ((ioc->diag_buffer_status[buffer_type] & |
| 1728 | MPT2_DIAG_BUFFER_IS_REGISTERED) == 0) { |
| 1729 | printk(MPT2SAS_ERR_FMT "%s: buffer_type(0x%02x) is not " |
| 1730 | "registered\n", ioc->name, __func__, buffer_type); |
| 1731 | return -EINVAL; |
| 1732 | } |
| 1733 | |
| 1734 | if (karg.unique_id != ioc->unique_id[buffer_type]) { |
| 1735 | printk(MPT2SAS_ERR_FMT "%s: unique_id(0x%08x) is not " |
| 1736 | "registered\n", ioc->name, __func__, karg.unique_id); |
| 1737 | return -EINVAL; |
| 1738 | } |
| 1739 | |
| 1740 | if (ioc->diag_buffer_status[buffer_type] & |
| 1741 | MPT2_DIAG_BUFFER_IS_RELEASED) { |
| 1742 | printk(MPT2SAS_ERR_FMT "%s: buffer_type(0x%02x) " |
| 1743 | "is already released\n", ioc->name, __func__, |
| 1744 | buffer_type); |
| 1745 | return 0; |
| 1746 | } |
| 1747 | |
| 1748 | request_data = ioc->diag_buffer[buffer_type]; |
| 1749 | |
| 1750 | if (!request_data) { |
| 1751 | printk(MPT2SAS_ERR_FMT "%s: doesn't have memory allocated for " |
| 1752 | "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type); |
| 1753 | return -ENOMEM; |
| 1754 | } |
| 1755 | |
Eric Moore | 99bb214 | 2009-04-21 15:42:13 -0600 | [diff] [blame] | 1756 | /* buffers were released by due to host reset */ |
| 1757 | if ((ioc->diag_buffer_status[buffer_type] & |
| 1758 | MPT2_DIAG_BUFFER_IS_DIAG_RESET)) { |
| 1759 | ioc->diag_buffer_status[buffer_type] |= |
| 1760 | MPT2_DIAG_BUFFER_IS_RELEASED; |
| 1761 | ioc->diag_buffer_status[buffer_type] &= |
| 1762 | ~MPT2_DIAG_BUFFER_IS_DIAG_RESET; |
| 1763 | printk(MPT2SAS_ERR_FMT "%s: buffer_type(0x%02x) " |
| 1764 | "was released due to host reset\n", ioc->name, __func__, |
| 1765 | buffer_type); |
| 1766 | return 0; |
| 1767 | } |
| 1768 | |
Eric Moore | 635374e | 2009-03-09 01:21:12 -0600 | [diff] [blame] | 1769 | if (state == NON_BLOCKING && !mutex_trylock(&ioc->ctl_cmds.mutex)) |
| 1770 | return -EAGAIN; |
| 1771 | else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex)) |
| 1772 | return -ERESTARTSYS; |
| 1773 | |
Eric Moore | 99bb214 | 2009-04-21 15:42:13 -0600 | [diff] [blame] | 1774 | rc = _ctl_send_release(ioc, buffer_type, &issue_reset); |
Eric Moore | 635374e | 2009-03-09 01:21:12 -0600 | [diff] [blame] | 1775 | |
Eric Moore | 635374e | 2009-03-09 01:21:12 -0600 | [diff] [blame] | 1776 | if (issue_reset) |
| 1777 | mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, |
| 1778 | FORCE_BIG_HAMMER); |
| 1779 | |
Eric Moore | 635374e | 2009-03-09 01:21:12 -0600 | [diff] [blame] | 1780 | mutex_unlock(&ioc->ctl_cmds.mutex); |
| 1781 | return rc; |
| 1782 | } |
| 1783 | |
| 1784 | /** |
| 1785 | * _ctl_diag_read_buffer - request for copy of the diag buffer |
| 1786 | * @arg - user space buffer containing ioctl content |
| 1787 | * @state - NON_BLOCKING or BLOCKING |
| 1788 | */ |
| 1789 | static long |
| 1790 | _ctl_diag_read_buffer(void __user *arg, enum block_state state) |
| 1791 | { |
| 1792 | struct mpt2_diag_read_buffer karg; |
| 1793 | struct mpt2_diag_read_buffer __user *uarg = arg; |
| 1794 | struct MPT2SAS_ADAPTER *ioc; |
| 1795 | void *request_data, *diag_data; |
| 1796 | Mpi2DiagBufferPostRequest_t *mpi_request; |
| 1797 | Mpi2DiagBufferPostReply_t *mpi_reply; |
| 1798 | int rc, i; |
| 1799 | u8 buffer_type; |
| 1800 | unsigned long timeleft; |
| 1801 | u16 smid; |
| 1802 | u16 ioc_status; |
| 1803 | u8 issue_reset = 0; |
| 1804 | |
| 1805 | if (copy_from_user(&karg, arg, sizeof(karg))) { |
| 1806 | printk(KERN_ERR "failure at %s:%d/%s()!\n", |
| 1807 | __FILE__, __LINE__, __func__); |
| 1808 | return -EFAULT; |
| 1809 | } |
| 1810 | if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc) |
| 1811 | return -ENODEV; |
| 1812 | |
| 1813 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name, |
| 1814 | __func__)); |
| 1815 | |
| 1816 | buffer_type = karg.unique_id & 0x000000ff; |
| 1817 | if (!_ctl_diag_capability(ioc, buffer_type)) { |
| 1818 | printk(MPT2SAS_ERR_FMT "%s: doesn't have capability for " |
| 1819 | "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type); |
| 1820 | return -EPERM; |
| 1821 | } |
| 1822 | |
| 1823 | if (karg.unique_id != ioc->unique_id[buffer_type]) { |
| 1824 | printk(MPT2SAS_ERR_FMT "%s: unique_id(0x%08x) is not " |
| 1825 | "registered\n", ioc->name, __func__, karg.unique_id); |
| 1826 | return -EINVAL; |
| 1827 | } |
| 1828 | |
| 1829 | request_data = ioc->diag_buffer[buffer_type]; |
| 1830 | if (!request_data) { |
| 1831 | printk(MPT2SAS_ERR_FMT "%s: doesn't have buffer for " |
| 1832 | "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type); |
| 1833 | return -ENOMEM; |
| 1834 | } |
| 1835 | |
| 1836 | if ((karg.starting_offset % 4) || (karg.bytes_to_read % 4)) { |
| 1837 | printk(MPT2SAS_ERR_FMT "%s: either the starting_offset " |
| 1838 | "or bytes_to_read are not 4 byte aligned\n", ioc->name, |
| 1839 | __func__); |
| 1840 | return -EINVAL; |
| 1841 | } |
| 1842 | |
| 1843 | diag_data = (void *)(request_data + karg.starting_offset); |
| 1844 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: diag_buffer(%p), " |
| 1845 | "offset(%d), sz(%d)\n", ioc->name, __func__, |
| 1846 | diag_data, karg.starting_offset, karg.bytes_to_read)); |
| 1847 | |
| 1848 | if (copy_to_user((void __user *)uarg->diagnostic_data, |
| 1849 | diag_data, karg.bytes_to_read)) { |
| 1850 | printk(MPT2SAS_ERR_FMT "%s: Unable to write " |
| 1851 | "mpt_diag_read_buffer_t data @ %p\n", ioc->name, |
| 1852 | __func__, diag_data); |
| 1853 | return -EFAULT; |
| 1854 | } |
| 1855 | |
| 1856 | if ((karg.flags & MPT2_FLAGS_REREGISTER) == 0) |
| 1857 | return 0; |
| 1858 | |
| 1859 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: Reregister " |
| 1860 | "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type)); |
| 1861 | if ((ioc->diag_buffer_status[buffer_type] & |
| 1862 | MPT2_DIAG_BUFFER_IS_RELEASED) == 0) { |
| 1863 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: " |
| 1864 | "buffer_type(0x%02x) is still registered\n", ioc->name, |
| 1865 | __func__, buffer_type)); |
| 1866 | return 0; |
| 1867 | } |
| 1868 | /* Get a free request frame and save the message context. |
| 1869 | */ |
| 1870 | if (state == NON_BLOCKING && !mutex_trylock(&ioc->ctl_cmds.mutex)) |
| 1871 | return -EAGAIN; |
| 1872 | else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex)) |
| 1873 | return -ERESTARTSYS; |
| 1874 | |
| 1875 | if (ioc->ctl_cmds.status != MPT2_CMD_NOT_USED) { |
| 1876 | printk(MPT2SAS_ERR_FMT "%s: ctl_cmd in use\n", |
| 1877 | ioc->name, __func__); |
| 1878 | rc = -EAGAIN; |
| 1879 | goto out; |
| 1880 | } |
| 1881 | |
| 1882 | smid = mpt2sas_base_get_smid(ioc, ioc->ctl_cb_idx); |
| 1883 | if (!smid) { |
| 1884 | printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", |
| 1885 | ioc->name, __func__); |
| 1886 | rc = -EAGAIN; |
| 1887 | goto out; |
| 1888 | } |
| 1889 | |
| 1890 | rc = 0; |
| 1891 | ioc->ctl_cmds.status = MPT2_CMD_PENDING; |
| 1892 | memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz); |
| 1893 | mpi_request = mpt2sas_base_get_msg_frame(ioc, smid); |
| 1894 | ioc->ctl_cmds.smid = smid; |
| 1895 | |
| 1896 | mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST; |
| 1897 | mpi_request->BufferType = buffer_type; |
| 1898 | mpi_request->BufferLength = |
| 1899 | cpu_to_le32(ioc->diag_buffer_sz[buffer_type]); |
| 1900 | mpi_request->BufferAddress = |
| 1901 | cpu_to_le64(ioc->diag_buffer_dma[buffer_type]); |
| 1902 | for (i = 0; i < MPT2_PRODUCT_SPECIFIC_DWORDS; i++) |
| 1903 | mpi_request->ProductSpecific[i] = |
| 1904 | cpu_to_le32(ioc->product_specific[buffer_type][i]); |
| 1905 | |
| 1906 | mpt2sas_base_put_smid_default(ioc, smid, mpi_request->VF_ID); |
| 1907 | timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done, |
| 1908 | MPT2_IOCTL_DEFAULT_TIMEOUT*HZ); |
| 1909 | |
| 1910 | if (!(ioc->ctl_cmds.status & MPT2_CMD_COMPLETE)) { |
| 1911 | printk(MPT2SAS_ERR_FMT "%s: timeout\n", ioc->name, |
| 1912 | __func__); |
| 1913 | _debug_dump_mf(mpi_request, |
| 1914 | sizeof(Mpi2DiagBufferPostRequest_t)/4); |
| 1915 | if (!(ioc->ctl_cmds.status & MPT2_CMD_RESET)) |
| 1916 | issue_reset = 1; |
| 1917 | goto issue_host_reset; |
| 1918 | } |
| 1919 | |
| 1920 | /* process the completed Reply Message Frame */ |
| 1921 | if ((ioc->ctl_cmds.status & MPT2_CMD_REPLY_VALID) == 0) { |
| 1922 | printk(MPT2SAS_ERR_FMT "%s: no reply message\n", |
| 1923 | ioc->name, __func__); |
| 1924 | rc = -EFAULT; |
| 1925 | goto out; |
| 1926 | } |
| 1927 | |
| 1928 | mpi_reply = ioc->ctl_cmds.reply; |
| 1929 | ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK; |
| 1930 | |
| 1931 | if (ioc_status == MPI2_IOCSTATUS_SUCCESS) { |
| 1932 | ioc->diag_buffer_status[buffer_type] |= |
| 1933 | MPT2_DIAG_BUFFER_IS_REGISTERED; |
| 1934 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: success\n", |
| 1935 | ioc->name, __func__)); |
| 1936 | } else { |
| 1937 | printk(MPT2SAS_DEBUG_FMT "%s: ioc_status(0x%04x) " |
| 1938 | "log_info(0x%08x)\n", ioc->name, __func__, |
| 1939 | ioc_status, mpi_reply->IOCLogInfo); |
| 1940 | rc = -EFAULT; |
| 1941 | } |
| 1942 | |
| 1943 | issue_host_reset: |
| 1944 | if (issue_reset) |
| 1945 | mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, |
| 1946 | FORCE_BIG_HAMMER); |
| 1947 | |
| 1948 | out: |
| 1949 | |
| 1950 | ioc->ctl_cmds.status = MPT2_CMD_NOT_USED; |
| 1951 | mutex_unlock(&ioc->ctl_cmds.mutex); |
| 1952 | return rc; |
| 1953 | } |
| 1954 | |
| 1955 | /** |
| 1956 | * _ctl_ioctl_main - main ioctl entry point |
| 1957 | * @file - (struct file) |
| 1958 | * @cmd - ioctl opcode |
| 1959 | * @arg - |
| 1960 | */ |
| 1961 | static long |
| 1962 | _ctl_ioctl_main(struct file *file, unsigned int cmd, void __user *arg) |
| 1963 | { |
| 1964 | enum block_state state; |
| 1965 | long ret = -EINVAL; |
| 1966 | unsigned long flags; |
| 1967 | |
| 1968 | state = (file->f_flags & O_NONBLOCK) ? NON_BLOCKING : |
| 1969 | BLOCKING; |
| 1970 | |
| 1971 | switch (cmd) { |
| 1972 | case MPT2IOCINFO: |
| 1973 | if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_iocinfo)) |
| 1974 | ret = _ctl_getiocinfo(arg); |
| 1975 | break; |
| 1976 | case MPT2COMMAND: |
| 1977 | { |
| 1978 | struct mpt2_ioctl_command karg; |
| 1979 | struct mpt2_ioctl_command __user *uarg; |
| 1980 | struct MPT2SAS_ADAPTER *ioc; |
| 1981 | |
| 1982 | if (copy_from_user(&karg, arg, sizeof(karg))) { |
| 1983 | printk(KERN_ERR "failure at %s:%d/%s()!\n", |
| 1984 | __FILE__, __LINE__, __func__); |
| 1985 | return -EFAULT; |
| 1986 | } |
| 1987 | |
| 1988 | if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || |
| 1989 | !ioc) |
| 1990 | return -ENODEV; |
| 1991 | |
| 1992 | spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags); |
| 1993 | if (ioc->shost_recovery) { |
| 1994 | spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, |
| 1995 | flags); |
| 1996 | return -EAGAIN; |
| 1997 | } |
| 1998 | spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags); |
| 1999 | |
| 2000 | if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_command)) { |
| 2001 | uarg = arg; |
| 2002 | ret = _ctl_do_mpt_command(ioc, karg, &uarg->mf, state); |
| 2003 | } |
| 2004 | break; |
| 2005 | } |
| 2006 | case MPT2EVENTQUERY: |
| 2007 | if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_eventquery)) |
| 2008 | ret = _ctl_eventquery(arg); |
| 2009 | break; |
| 2010 | case MPT2EVENTENABLE: |
| 2011 | if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_eventenable)) |
| 2012 | ret = _ctl_eventenable(arg); |
| 2013 | break; |
| 2014 | case MPT2EVENTREPORT: |
| 2015 | ret = _ctl_eventreport(arg); |
| 2016 | break; |
| 2017 | case MPT2HARDRESET: |
| 2018 | if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_diag_reset)) |
| 2019 | ret = _ctl_do_reset(arg); |
| 2020 | break; |
| 2021 | case MPT2BTDHMAPPING: |
| 2022 | if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_btdh_mapping)) |
| 2023 | ret = _ctl_btdh_mapping(arg); |
| 2024 | break; |
| 2025 | case MPT2DIAGREGISTER: |
| 2026 | if (_IOC_SIZE(cmd) == sizeof(struct mpt2_diag_register)) |
| 2027 | ret = _ctl_diag_register(arg, state); |
| 2028 | break; |
| 2029 | case MPT2DIAGUNREGISTER: |
| 2030 | if (_IOC_SIZE(cmd) == sizeof(struct mpt2_diag_unregister)) |
| 2031 | ret = _ctl_diag_unregister(arg); |
| 2032 | break; |
| 2033 | case MPT2DIAGQUERY: |
| 2034 | if (_IOC_SIZE(cmd) == sizeof(struct mpt2_diag_query)) |
| 2035 | ret = _ctl_diag_query(arg); |
| 2036 | break; |
| 2037 | case MPT2DIAGRELEASE: |
| 2038 | if (_IOC_SIZE(cmd) == sizeof(struct mpt2_diag_release)) |
| 2039 | ret = _ctl_diag_release(arg, state); |
| 2040 | break; |
| 2041 | case MPT2DIAGREADBUFFER: |
| 2042 | if (_IOC_SIZE(cmd) == sizeof(struct mpt2_diag_read_buffer)) |
| 2043 | ret = _ctl_diag_read_buffer(arg, state); |
| 2044 | break; |
| 2045 | default: |
| 2046 | { |
| 2047 | struct mpt2_ioctl_command karg; |
| 2048 | struct MPT2SAS_ADAPTER *ioc; |
| 2049 | |
| 2050 | if (copy_from_user(&karg, arg, sizeof(karg))) { |
| 2051 | printk(KERN_ERR "failure at %s:%d/%s()!\n", |
| 2052 | __FILE__, __LINE__, __func__); |
| 2053 | return -EFAULT; |
| 2054 | } |
| 2055 | |
| 2056 | if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || |
| 2057 | !ioc) |
| 2058 | return -ENODEV; |
| 2059 | |
| 2060 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT |
| 2061 | "unsupported ioctl opcode(0x%08x)\n", ioc->name, cmd)); |
| 2062 | break; |
| 2063 | } |
| 2064 | } |
| 2065 | return ret; |
| 2066 | } |
| 2067 | |
| 2068 | /** |
| 2069 | * _ctl_ioctl - main ioctl entry point (unlocked) |
| 2070 | * @file - (struct file) |
| 2071 | * @cmd - ioctl opcode |
| 2072 | * @arg - |
| 2073 | */ |
| 2074 | static long |
| 2075 | _ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg) |
| 2076 | { |
| 2077 | long ret; |
| 2078 | lock_kernel(); |
| 2079 | ret = _ctl_ioctl_main(file, cmd, (void __user *)arg); |
| 2080 | unlock_kernel(); |
| 2081 | return ret; |
| 2082 | } |
| 2083 | |
| 2084 | #ifdef CONFIG_COMPAT |
| 2085 | /** |
| 2086 | * _ctl_compat_mpt_command - convert 32bit pointers to 64bit. |
| 2087 | * @file - (struct file) |
| 2088 | * @cmd - ioctl opcode |
| 2089 | * @arg - (struct mpt2_ioctl_command32) |
| 2090 | * |
| 2091 | * MPT2COMMAND32 - Handle 32bit applications running on 64bit os. |
| 2092 | */ |
| 2093 | static long |
| 2094 | _ctl_compat_mpt_command(struct file *file, unsigned cmd, unsigned long arg) |
| 2095 | { |
| 2096 | struct mpt2_ioctl_command32 karg32; |
| 2097 | struct mpt2_ioctl_command32 __user *uarg; |
| 2098 | struct mpt2_ioctl_command karg; |
| 2099 | struct MPT2SAS_ADAPTER *ioc; |
| 2100 | enum block_state state; |
| 2101 | unsigned long flags; |
| 2102 | |
| 2103 | if (_IOC_SIZE(cmd) != sizeof(struct mpt2_ioctl_command32)) |
| 2104 | return -EINVAL; |
| 2105 | |
| 2106 | uarg = (struct mpt2_ioctl_command32 __user *) arg; |
| 2107 | |
| 2108 | if (copy_from_user(&karg32, (char __user *)arg, sizeof(karg32))) { |
| 2109 | printk(KERN_ERR "failure at %s:%d/%s()!\n", |
| 2110 | __FILE__, __LINE__, __func__); |
| 2111 | return -EFAULT; |
| 2112 | } |
| 2113 | if (_ctl_verify_adapter(karg32.hdr.ioc_number, &ioc) == -1 || !ioc) |
| 2114 | return -ENODEV; |
| 2115 | |
| 2116 | spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags); |
| 2117 | if (ioc->shost_recovery) { |
| 2118 | spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, |
| 2119 | flags); |
| 2120 | return -EAGAIN; |
| 2121 | } |
| 2122 | spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags); |
| 2123 | |
| 2124 | memset(&karg, 0, sizeof(struct mpt2_ioctl_command)); |
| 2125 | karg.hdr.ioc_number = karg32.hdr.ioc_number; |
| 2126 | karg.hdr.port_number = karg32.hdr.port_number; |
| 2127 | karg.hdr.max_data_size = karg32.hdr.max_data_size; |
| 2128 | karg.timeout = karg32.timeout; |
| 2129 | karg.max_reply_bytes = karg32.max_reply_bytes; |
| 2130 | karg.data_in_size = karg32.data_in_size; |
| 2131 | karg.data_out_size = karg32.data_out_size; |
| 2132 | karg.max_sense_bytes = karg32.max_sense_bytes; |
| 2133 | karg.data_sge_offset = karg32.data_sge_offset; |
| 2134 | memcpy(&karg.reply_frame_buf_ptr, &karg32.reply_frame_buf_ptr, |
| 2135 | sizeof(uint32_t)); |
| 2136 | memcpy(&karg.data_in_buf_ptr, &karg32.data_in_buf_ptr, |
| 2137 | sizeof(uint32_t)); |
| 2138 | memcpy(&karg.data_out_buf_ptr, &karg32.data_out_buf_ptr, |
| 2139 | sizeof(uint32_t)); |
| 2140 | memcpy(&karg.sense_data_ptr, &karg32.sense_data_ptr, |
| 2141 | sizeof(uint32_t)); |
| 2142 | state = (file->f_flags & O_NONBLOCK) ? NON_BLOCKING : BLOCKING; |
| 2143 | return _ctl_do_mpt_command(ioc, karg, &uarg->mf, state); |
| 2144 | } |
| 2145 | |
| 2146 | /** |
| 2147 | * _ctl_ioctl_compat - main ioctl entry point (compat) |
| 2148 | * @file - |
| 2149 | * @cmd - |
| 2150 | * @arg - |
| 2151 | * |
| 2152 | * This routine handles 32 bit applications in 64bit os. |
| 2153 | */ |
| 2154 | static long |
| 2155 | _ctl_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg) |
| 2156 | { |
| 2157 | long ret; |
| 2158 | lock_kernel(); |
| 2159 | if (cmd == MPT2COMMAND32) |
| 2160 | ret = _ctl_compat_mpt_command(file, cmd, arg); |
| 2161 | else |
| 2162 | ret = _ctl_ioctl_main(file, cmd, (void __user *)arg); |
| 2163 | unlock_kernel(); |
| 2164 | return ret; |
| 2165 | } |
| 2166 | #endif |
| 2167 | |
| 2168 | /* scsi host attributes */ |
| 2169 | |
| 2170 | /** |
| 2171 | * _ctl_version_fw_show - firmware version |
| 2172 | * @cdev - pointer to embedded class device |
| 2173 | * @buf - the buffer returned |
| 2174 | * |
| 2175 | * A sysfs 'read-only' shost attribute. |
| 2176 | */ |
| 2177 | static ssize_t |
| 2178 | _ctl_version_fw_show(struct device *cdev, struct device_attribute *attr, |
| 2179 | char *buf) |
| 2180 | { |
| 2181 | struct Scsi_Host *shost = class_to_shost(cdev); |
| 2182 | struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); |
| 2183 | |
| 2184 | return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n", |
| 2185 | (ioc->facts.FWVersion.Word & 0xFF000000) >> 24, |
| 2186 | (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16, |
| 2187 | (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8, |
| 2188 | ioc->facts.FWVersion.Word & 0x000000FF); |
| 2189 | } |
| 2190 | static DEVICE_ATTR(version_fw, S_IRUGO, _ctl_version_fw_show, NULL); |
| 2191 | |
| 2192 | /** |
| 2193 | * _ctl_version_bios_show - bios version |
| 2194 | * @cdev - pointer to embedded class device |
| 2195 | * @buf - the buffer returned |
| 2196 | * |
| 2197 | * A sysfs 'read-only' shost attribute. |
| 2198 | */ |
| 2199 | static ssize_t |
| 2200 | _ctl_version_bios_show(struct device *cdev, struct device_attribute *attr, |
| 2201 | char *buf) |
| 2202 | { |
| 2203 | struct Scsi_Host *shost = class_to_shost(cdev); |
| 2204 | struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); |
| 2205 | |
| 2206 | u32 version = le32_to_cpu(ioc->bios_pg3.BiosVersion); |
| 2207 | |
| 2208 | return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n", |
| 2209 | (version & 0xFF000000) >> 24, |
| 2210 | (version & 0x00FF0000) >> 16, |
| 2211 | (version & 0x0000FF00) >> 8, |
| 2212 | version & 0x000000FF); |
| 2213 | } |
| 2214 | static DEVICE_ATTR(version_bios, S_IRUGO, _ctl_version_bios_show, NULL); |
| 2215 | |
| 2216 | /** |
| 2217 | * _ctl_version_mpi_show - MPI (message passing interface) version |
| 2218 | * @cdev - pointer to embedded class device |
| 2219 | * @buf - the buffer returned |
| 2220 | * |
| 2221 | * A sysfs 'read-only' shost attribute. |
| 2222 | */ |
| 2223 | static ssize_t |
| 2224 | _ctl_version_mpi_show(struct device *cdev, struct device_attribute *attr, |
| 2225 | char *buf) |
| 2226 | { |
| 2227 | struct Scsi_Host *shost = class_to_shost(cdev); |
| 2228 | struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); |
| 2229 | |
| 2230 | return snprintf(buf, PAGE_SIZE, "%03x.%02x\n", |
| 2231 | ioc->facts.MsgVersion, ioc->facts.HeaderVersion >> 8); |
| 2232 | } |
| 2233 | static DEVICE_ATTR(version_mpi, S_IRUGO, _ctl_version_mpi_show, NULL); |
| 2234 | |
| 2235 | /** |
| 2236 | * _ctl_version_product_show - product name |
| 2237 | * @cdev - pointer to embedded class device |
| 2238 | * @buf - the buffer returned |
| 2239 | * |
| 2240 | * A sysfs 'read-only' shost attribute. |
| 2241 | */ |
| 2242 | static ssize_t |
| 2243 | _ctl_version_product_show(struct device *cdev, struct device_attribute *attr, |
| 2244 | char *buf) |
| 2245 | { |
| 2246 | struct Scsi_Host *shost = class_to_shost(cdev); |
| 2247 | struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); |
| 2248 | |
| 2249 | return snprintf(buf, 16, "%s\n", ioc->manu_pg0.ChipName); |
| 2250 | } |
| 2251 | static DEVICE_ATTR(version_product, S_IRUGO, |
| 2252 | _ctl_version_product_show, NULL); |
| 2253 | |
| 2254 | /** |
| 2255 | * _ctl_version_nvdata_persistent_show - ndvata persistent version |
| 2256 | * @cdev - pointer to embedded class device |
| 2257 | * @buf - the buffer returned |
| 2258 | * |
| 2259 | * A sysfs 'read-only' shost attribute. |
| 2260 | */ |
| 2261 | static ssize_t |
| 2262 | _ctl_version_nvdata_persistent_show(struct device *cdev, |
| 2263 | struct device_attribute *attr, char *buf) |
| 2264 | { |
| 2265 | struct Scsi_Host *shost = class_to_shost(cdev); |
| 2266 | struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); |
| 2267 | |
| 2268 | return snprintf(buf, PAGE_SIZE, "%02xh\n", |
| 2269 | le16_to_cpu(ioc->iounit_pg0.NvdataVersionPersistent.Word)); |
| 2270 | } |
| 2271 | static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO, |
| 2272 | _ctl_version_nvdata_persistent_show, NULL); |
| 2273 | |
| 2274 | /** |
| 2275 | * _ctl_version_nvdata_default_show - nvdata default version |
| 2276 | * @cdev - pointer to embedded class device |
| 2277 | * @buf - the buffer returned |
| 2278 | * |
| 2279 | * A sysfs 'read-only' shost attribute. |
| 2280 | */ |
| 2281 | static ssize_t |
| 2282 | _ctl_version_nvdata_default_show(struct device *cdev, |
| 2283 | struct device_attribute *attr, char *buf) |
| 2284 | { |
| 2285 | struct Scsi_Host *shost = class_to_shost(cdev); |
| 2286 | struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); |
| 2287 | |
| 2288 | return snprintf(buf, PAGE_SIZE, "%02xh\n", |
| 2289 | le16_to_cpu(ioc->iounit_pg0.NvdataVersionDefault.Word)); |
| 2290 | } |
| 2291 | static DEVICE_ATTR(version_nvdata_default, S_IRUGO, |
| 2292 | _ctl_version_nvdata_default_show, NULL); |
| 2293 | |
| 2294 | /** |
| 2295 | * _ctl_board_name_show - board name |
| 2296 | * @cdev - pointer to embedded class device |
| 2297 | * @buf - the buffer returned |
| 2298 | * |
| 2299 | * A sysfs 'read-only' shost attribute. |
| 2300 | */ |
| 2301 | static ssize_t |
| 2302 | _ctl_board_name_show(struct device *cdev, struct device_attribute *attr, |
| 2303 | char *buf) |
| 2304 | { |
| 2305 | struct Scsi_Host *shost = class_to_shost(cdev); |
| 2306 | struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); |
| 2307 | |
| 2308 | return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardName); |
| 2309 | } |
| 2310 | static DEVICE_ATTR(board_name, S_IRUGO, _ctl_board_name_show, NULL); |
| 2311 | |
| 2312 | /** |
| 2313 | * _ctl_board_assembly_show - board assembly name |
| 2314 | * @cdev - pointer to embedded class device |
| 2315 | * @buf - the buffer returned |
| 2316 | * |
| 2317 | * A sysfs 'read-only' shost attribute. |
| 2318 | */ |
| 2319 | static ssize_t |
| 2320 | _ctl_board_assembly_show(struct device *cdev, struct device_attribute *attr, |
| 2321 | char *buf) |
| 2322 | { |
| 2323 | struct Scsi_Host *shost = class_to_shost(cdev); |
| 2324 | struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); |
| 2325 | |
| 2326 | return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardAssembly); |
| 2327 | } |
| 2328 | static DEVICE_ATTR(board_assembly, S_IRUGO, |
| 2329 | _ctl_board_assembly_show, NULL); |
| 2330 | |
| 2331 | /** |
| 2332 | * _ctl_board_tracer_show - board tracer number |
| 2333 | * @cdev - pointer to embedded class device |
| 2334 | * @buf - the buffer returned |
| 2335 | * |
| 2336 | * A sysfs 'read-only' shost attribute. |
| 2337 | */ |
| 2338 | static ssize_t |
| 2339 | _ctl_board_tracer_show(struct device *cdev, struct device_attribute *attr, |
| 2340 | char *buf) |
| 2341 | { |
| 2342 | struct Scsi_Host *shost = class_to_shost(cdev); |
| 2343 | struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); |
| 2344 | |
| 2345 | return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardTracerNumber); |
| 2346 | } |
| 2347 | static DEVICE_ATTR(board_tracer, S_IRUGO, |
| 2348 | _ctl_board_tracer_show, NULL); |
| 2349 | |
| 2350 | /** |
| 2351 | * _ctl_io_delay_show - io missing delay |
| 2352 | * @cdev - pointer to embedded class device |
| 2353 | * @buf - the buffer returned |
| 2354 | * |
| 2355 | * This is for firmware implemention for deboucing device |
| 2356 | * removal events. |
| 2357 | * |
| 2358 | * A sysfs 'read-only' shost attribute. |
| 2359 | */ |
| 2360 | static ssize_t |
| 2361 | _ctl_io_delay_show(struct device *cdev, struct device_attribute *attr, |
| 2362 | char *buf) |
| 2363 | { |
| 2364 | struct Scsi_Host *shost = class_to_shost(cdev); |
| 2365 | struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); |
| 2366 | |
| 2367 | return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay); |
| 2368 | } |
| 2369 | static DEVICE_ATTR(io_delay, S_IRUGO, |
| 2370 | _ctl_io_delay_show, NULL); |
| 2371 | |
| 2372 | /** |
| 2373 | * _ctl_device_delay_show - device missing delay |
| 2374 | * @cdev - pointer to embedded class device |
| 2375 | * @buf - the buffer returned |
| 2376 | * |
| 2377 | * This is for firmware implemention for deboucing device |
| 2378 | * removal events. |
| 2379 | * |
| 2380 | * A sysfs 'read-only' shost attribute. |
| 2381 | */ |
| 2382 | static ssize_t |
| 2383 | _ctl_device_delay_show(struct device *cdev, struct device_attribute *attr, |
| 2384 | char *buf) |
| 2385 | { |
| 2386 | struct Scsi_Host *shost = class_to_shost(cdev); |
| 2387 | struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); |
| 2388 | |
| 2389 | return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay); |
| 2390 | } |
| 2391 | static DEVICE_ATTR(device_delay, S_IRUGO, |
| 2392 | _ctl_device_delay_show, NULL); |
| 2393 | |
| 2394 | /** |
| 2395 | * _ctl_fw_queue_depth_show - global credits |
| 2396 | * @cdev - pointer to embedded class device |
| 2397 | * @buf - the buffer returned |
| 2398 | * |
| 2399 | * This is firmware queue depth limit |
| 2400 | * |
| 2401 | * A sysfs 'read-only' shost attribute. |
| 2402 | */ |
| 2403 | static ssize_t |
| 2404 | _ctl_fw_queue_depth_show(struct device *cdev, struct device_attribute *attr, |
| 2405 | char *buf) |
| 2406 | { |
| 2407 | struct Scsi_Host *shost = class_to_shost(cdev); |
| 2408 | struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); |
| 2409 | |
| 2410 | return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->facts.RequestCredit); |
| 2411 | } |
| 2412 | static DEVICE_ATTR(fw_queue_depth, S_IRUGO, |
| 2413 | _ctl_fw_queue_depth_show, NULL); |
| 2414 | |
| 2415 | /** |
| 2416 | * _ctl_sas_address_show - sas address |
| 2417 | * @cdev - pointer to embedded class device |
| 2418 | * @buf - the buffer returned |
| 2419 | * |
| 2420 | * This is the controller sas address |
| 2421 | * |
| 2422 | * A sysfs 'read-only' shost attribute. |
| 2423 | */ |
| 2424 | static ssize_t |
| 2425 | _ctl_host_sas_address_show(struct device *cdev, struct device_attribute *attr, |
| 2426 | char *buf) |
| 2427 | { |
| 2428 | struct Scsi_Host *shost = class_to_shost(cdev); |
| 2429 | struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); |
| 2430 | |
| 2431 | return snprintf(buf, PAGE_SIZE, "0x%016llx\n", |
| 2432 | (unsigned long long)ioc->sas_hba.sas_address); |
| 2433 | } |
| 2434 | static DEVICE_ATTR(host_sas_address, S_IRUGO, |
| 2435 | _ctl_host_sas_address_show, NULL); |
| 2436 | |
| 2437 | /** |
| 2438 | * _ctl_logging_level_show - logging level |
| 2439 | * @cdev - pointer to embedded class device |
| 2440 | * @buf - the buffer returned |
| 2441 | * |
| 2442 | * A sysfs 'read/write' shost attribute. |
| 2443 | */ |
| 2444 | static ssize_t |
| 2445 | _ctl_logging_level_show(struct device *cdev, struct device_attribute *attr, |
| 2446 | char *buf) |
| 2447 | { |
| 2448 | struct Scsi_Host *shost = class_to_shost(cdev); |
| 2449 | struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); |
| 2450 | |
| 2451 | return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->logging_level); |
| 2452 | } |
| 2453 | static ssize_t |
| 2454 | _ctl_logging_level_store(struct device *cdev, struct device_attribute *attr, |
| 2455 | const char *buf, size_t count) |
| 2456 | { |
| 2457 | struct Scsi_Host *shost = class_to_shost(cdev); |
| 2458 | struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); |
| 2459 | int val = 0; |
| 2460 | |
| 2461 | if (sscanf(buf, "%x", &val) != 1) |
| 2462 | return -EINVAL; |
| 2463 | |
| 2464 | ioc->logging_level = val; |
| 2465 | printk(MPT2SAS_INFO_FMT "logging_level=%08xh\n", ioc->name, |
| 2466 | ioc->logging_level); |
| 2467 | return strlen(buf); |
| 2468 | } |
| 2469 | static DEVICE_ATTR(logging_level, S_IRUGO | S_IWUSR, |
| 2470 | _ctl_logging_level_show, _ctl_logging_level_store); |
| 2471 | |
| 2472 | struct device_attribute *mpt2sas_host_attrs[] = { |
| 2473 | &dev_attr_version_fw, |
| 2474 | &dev_attr_version_bios, |
| 2475 | &dev_attr_version_mpi, |
| 2476 | &dev_attr_version_product, |
| 2477 | &dev_attr_version_nvdata_persistent, |
| 2478 | &dev_attr_version_nvdata_default, |
| 2479 | &dev_attr_board_name, |
| 2480 | &dev_attr_board_assembly, |
| 2481 | &dev_attr_board_tracer, |
| 2482 | &dev_attr_io_delay, |
| 2483 | &dev_attr_device_delay, |
| 2484 | &dev_attr_logging_level, |
| 2485 | &dev_attr_fw_queue_depth, |
| 2486 | &dev_attr_host_sas_address, |
| 2487 | NULL, |
| 2488 | }; |
| 2489 | |
| 2490 | /* device attributes */ |
| 2491 | |
| 2492 | /** |
| 2493 | * _ctl_device_sas_address_show - sas address |
| 2494 | * @cdev - pointer to embedded class device |
| 2495 | * @buf - the buffer returned |
| 2496 | * |
| 2497 | * This is the sas address for the target |
| 2498 | * |
| 2499 | * A sysfs 'read-only' shost attribute. |
| 2500 | */ |
| 2501 | static ssize_t |
| 2502 | _ctl_device_sas_address_show(struct device *dev, struct device_attribute *attr, |
| 2503 | char *buf) |
| 2504 | { |
| 2505 | struct scsi_device *sdev = to_scsi_device(dev); |
| 2506 | struct MPT2SAS_DEVICE *sas_device_priv_data = sdev->hostdata; |
| 2507 | |
| 2508 | return snprintf(buf, PAGE_SIZE, "0x%016llx\n", |
| 2509 | (unsigned long long)sas_device_priv_data->sas_target->sas_address); |
| 2510 | } |
| 2511 | static DEVICE_ATTR(sas_address, S_IRUGO, _ctl_device_sas_address_show, NULL); |
| 2512 | |
| 2513 | /** |
| 2514 | * _ctl_device_handle_show - device handle |
| 2515 | * @cdev - pointer to embedded class device |
| 2516 | * @buf - the buffer returned |
| 2517 | * |
| 2518 | * This is the firmware assigned device handle |
| 2519 | * |
| 2520 | * A sysfs 'read-only' shost attribute. |
| 2521 | */ |
| 2522 | static ssize_t |
| 2523 | _ctl_device_handle_show(struct device *dev, struct device_attribute *attr, |
| 2524 | char *buf) |
| 2525 | { |
| 2526 | struct scsi_device *sdev = to_scsi_device(dev); |
| 2527 | struct MPT2SAS_DEVICE *sas_device_priv_data = sdev->hostdata; |
| 2528 | |
| 2529 | return snprintf(buf, PAGE_SIZE, "0x%04x\n", |
| 2530 | sas_device_priv_data->sas_target->handle); |
| 2531 | } |
| 2532 | static DEVICE_ATTR(sas_device_handle, S_IRUGO, _ctl_device_handle_show, NULL); |
| 2533 | |
| 2534 | struct device_attribute *mpt2sas_dev_attrs[] = { |
| 2535 | &dev_attr_sas_address, |
| 2536 | &dev_attr_sas_device_handle, |
| 2537 | NULL, |
| 2538 | }; |
| 2539 | |
| 2540 | static const struct file_operations ctl_fops = { |
| 2541 | .owner = THIS_MODULE, |
| 2542 | .unlocked_ioctl = _ctl_ioctl, |
| 2543 | .release = _ctl_release, |
| 2544 | .poll = _ctl_poll, |
| 2545 | .fasync = _ctl_fasync, |
| 2546 | #ifdef CONFIG_COMPAT |
| 2547 | .compat_ioctl = _ctl_ioctl_compat, |
| 2548 | #endif |
| 2549 | }; |
| 2550 | |
| 2551 | static struct miscdevice ctl_dev = { |
| 2552 | .minor = MPT2SAS_MINOR, |
| 2553 | .name = MPT2SAS_DEV_NAME, |
| 2554 | .fops = &ctl_fops, |
| 2555 | }; |
| 2556 | |
| 2557 | /** |
| 2558 | * mpt2sas_ctl_init - main entry point for ctl. |
| 2559 | * |
| 2560 | */ |
| 2561 | void |
| 2562 | mpt2sas_ctl_init(void) |
| 2563 | { |
| 2564 | async_queue = NULL; |
| 2565 | if (misc_register(&ctl_dev) < 0) |
| 2566 | printk(KERN_ERR "%s can't register misc device [minor=%d]\n", |
| 2567 | MPT2SAS_DRIVER_NAME, MPT2SAS_MINOR); |
| 2568 | |
| 2569 | init_waitqueue_head(&ctl_poll_wait); |
| 2570 | } |
| 2571 | |
| 2572 | /** |
| 2573 | * mpt2sas_ctl_exit - exit point for ctl |
| 2574 | * |
| 2575 | */ |
| 2576 | void |
| 2577 | mpt2sas_ctl_exit(void) |
| 2578 | { |
| 2579 | struct MPT2SAS_ADAPTER *ioc; |
| 2580 | int i; |
| 2581 | |
Eric Moore | ba33fad | 2009-03-15 21:37:18 -0600 | [diff] [blame] | 2582 | list_for_each_entry(ioc, &mpt2sas_ioc_list, list) { |
Eric Moore | 635374e | 2009-03-09 01:21:12 -0600 | [diff] [blame] | 2583 | |
| 2584 | /* free memory associated to diag buffers */ |
| 2585 | for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) { |
| 2586 | if (!ioc->diag_buffer[i]) |
| 2587 | continue; |
| 2588 | pci_free_consistent(ioc->pdev, ioc->diag_buffer_sz[i], |
| 2589 | ioc->diag_buffer[i], ioc->diag_buffer_dma[i]); |
| 2590 | ioc->diag_buffer[i] = NULL; |
| 2591 | ioc->diag_buffer_status[i] = 0; |
| 2592 | } |
| 2593 | |
| 2594 | kfree(ioc->event_log); |
| 2595 | } |
| 2596 | misc_deregister(&ctl_dev); |
| 2597 | } |
| 2598 | |