| 1 | /*- |
| 2 | * Written by: David Jeffery |
| 3 | * Copyright (c) 2002 Adaptec Inc. |
| 4 | * All rights reserved. |
| 5 | * |
| 6 | * Redistribution and use in source and binary forms, with or without |
| 7 | * modification, are permitted provided that the following conditions |
| 8 | * are met: |
| 9 | * 1. Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
| 11 | * 2. Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in the |
| 13 | * documentation and/or other materials provided with the distribution. |
| 14 | * |
| 15 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| 16 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 17 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 18 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| 19 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 20 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 21 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 22 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 23 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 24 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 25 | * SUCH DAMAGE. |
| 26 | * |
| 27 | * $FreeBSD: src/sys/dev/ips/ips.c,v 1.12 2004/05/30 04:01:29 scottl Exp $ |
| 28 | * $DragonFly: src/sys/dev/raid/ips/ips.c,v 1.10 2004/12/10 04:09:46 y0netan1 Exp $ |
| 29 | */ |
| 30 | |
| 31 | #include <dev/raid/ips/ips.h> |
| 32 | #include <sys/stat.h> |
| 33 | #include <sys/time.h> |
| 34 | #include <machine/clock.h> |
| 35 | |
| 36 | static d_open_t ips_open; |
| 37 | static d_close_t ips_close; |
| 38 | static d_ioctl_t ips_ioctl; |
| 39 | |
| 40 | MALLOC_DEFINE(M_IPSBUF, "ipsbuf", "IPS driver buffer"); |
| 41 | |
| 42 | static struct cdevsw ips_cdevsw = { |
| 43 | .d_name = "ips", |
| 44 | .d_maj = IPS_CDEV_MAJOR, |
| 45 | .d_flags = D_DISK, |
| 46 | .d_port = NULL, |
| 47 | .d_clone = NULL, |
| 48 | .old_open = ips_open, |
| 49 | .old_close = ips_close, |
| 50 | .old_ioctl = ips_ioctl, |
| 51 | }; |
| 52 | |
| 53 | static const char *ips_adapter_name[] = { |
| 54 | "N/A", |
| 55 | "ServeRAID (copperhead)", |
| 56 | "ServeRAID II (copperhead refresh)", |
| 57 | "ServeRAID onboard (copperhead)", |
| 58 | "ServeRAID onboard (copperhead)", |
| 59 | "ServeRAID 3H (clarinet)", |
| 60 | "ServeRAID 3L (clarinet lite)", |
| 61 | "ServeRAID 4H (trombone)", |
| 62 | "ServeRAID 4M (morpheus)", |
| 63 | "ServeRAID 4L (morpheus lite)", |
| 64 | "ServeRAID 4Mx (neo)", |
| 65 | "ServeRAID 4Lx (neo lite)", |
| 66 | "ServeRAID 5i II (sarasota)", |
| 67 | "ServeRAID 5i (sarasota)", |
| 68 | "ServeRAID 6M (marco)", |
| 69 | "ServeRAID 6i (sebring)" |
| 70 | }; |
| 71 | |
| 72 | |
| 73 | static int |
| 74 | ips_open(dev_t dev, int flags, int fmt, d_thread_t *td) |
| 75 | { |
| 76 | ips_softc_t *sc = dev->si_drv1; |
| 77 | |
| 78 | sc->state |= IPS_DEV_OPEN; |
| 79 | return 0; |
| 80 | } |
| 81 | |
| 82 | static int |
| 83 | ips_close(dev_t dev, int flags, int fmt, d_thread_t *td) |
| 84 | { |
| 85 | ips_softc_t *sc = dev->si_drv1; |
| 86 | |
| 87 | sc->state &= ~IPS_DEV_OPEN; |
| 88 | return 0; |
| 89 | } |
| 90 | |
| 91 | static int |
| 92 | ips_ioctl(dev_t dev, u_long command, caddr_t addr, int32_t flags, |
| 93 | d_thread_t *td) |
| 94 | { |
| 95 | ips_softc_t *sc; |
| 96 | |
| 97 | sc = dev->si_drv1; |
| 98 | return ips_ioctl_request(sc, command, addr, flags); |
| 99 | } |
| 100 | |
| 101 | static void |
| 102 | ips_cmd_dmaload(void *cmdptr, bus_dma_segment_t *segments, int segnum, |
| 103 | int error) |
| 104 | { |
| 105 | ips_command_t *command = cmdptr; |
| 106 | |
| 107 | PRINTF(10, "ips: in ips_cmd_dmaload\n"); |
| 108 | if (!error) |
| 109 | command->command_phys_addr = segments[0].ds_addr; |
| 110 | |
| 111 | } |
| 112 | |
| 113 | /* is locking needed? what locking guarentees are there on removal? */ |
| 114 | static __inline__ int |
| 115 | ips_cmdqueue_free(ips_softc_t *sc) |
| 116 | { |
| 117 | int i, error = -1; |
| 118 | ips_command_t *command; |
| 119 | intrmask_t mask; |
| 120 | |
| 121 | mask = splbio(); |
| 122 | if (sc->used_commands == 0) { |
| 123 | for (i = 0; i < sc->max_cmds; i++) { |
| 124 | command = &sc->commandarray[i]; |
| 125 | if (command->command_phys_addr == 0) |
| 126 | continue; |
| 127 | bus_dmamap_unload(sc->command_dmatag, |
| 128 | command->command_dmamap); |
| 129 | bus_dmamem_free(sc->command_dmatag, |
| 130 | command->command_buffer, |
| 131 | command->command_dmamap); |
| 132 | } |
| 133 | error = 0; |
| 134 | sc->state |= IPS_OFFLINE; |
| 135 | } |
| 136 | splx(mask); |
| 137 | return error; |
| 138 | } |
| 139 | |
| 140 | /* places all ips command structs on the free command queue. No locking as if someone else tries |
| 141 | * to access this during init, we have bigger problems */ |
| 142 | static __inline__ int |
| 143 | ips_cmdqueue_init(ips_softc_t *sc) |
| 144 | { |
| 145 | int i; |
| 146 | ips_command_t *command; |
| 147 | |
| 148 | SLIST_INIT(&sc->free_cmd_list); |
| 149 | STAILQ_INIT(&sc->cmd_wait_list); |
| 150 | for (i = 0; i < sc->max_cmds; i++) { |
| 151 | command = &sc->commandarray[i]; |
| 152 | command->id = i; |
| 153 | command->sc = sc; |
| 154 | if (bus_dmamem_alloc(sc->command_dmatag, |
| 155 | &command->command_buffer, BUS_DMA_NOWAIT, |
| 156 | &command->command_dmamap)) |
| 157 | goto error; |
| 158 | bus_dmamap_load(sc->command_dmatag, command->command_dmamap, |
| 159 | command->command_buffer, IPS_COMMAND_LEN, ips_cmd_dmaload, |
| 160 | command, BUS_DMA_NOWAIT); |
| 161 | if (command->command_phys_addr == 0) { |
| 162 | bus_dmamem_free(sc->command_dmatag, |
| 163 | command->command_buffer, command->command_dmamap); |
| 164 | goto error; |
| 165 | } |
| 166 | SLIST_INSERT_HEAD(&sc->free_cmd_list, command, next); |
| 167 | } |
| 168 | sc->state &= ~IPS_OFFLINE; |
| 169 | return 0; |
| 170 | error: |
| 171 | ips_cmdqueue_free(sc); |
| 172 | return ENOMEM; |
| 173 | } |
| 174 | |
| 175 | static int |
| 176 | ips_add_waiting_command(ips_softc_t *sc, int (*callback)(ips_command_t *), |
| 177 | void *data) |
| 178 | { |
| 179 | intrmask_t mask; |
| 180 | ips_command_t *command; |
| 181 | ips_wait_list_t *waiter; |
| 182 | |
| 183 | waiter = malloc(sizeof(ips_wait_list_t), M_IPSBUF, M_INTWAIT); |
| 184 | mask = splbio(); |
| 185 | if (sc->state & IPS_OFFLINE) { |
| 186 | splx(mask); |
| 187 | free(waiter, M_IPSBUF); |
| 188 | return EIO; |
| 189 | } |
| 190 | command = SLIST_FIRST(&sc->free_cmd_list); |
| 191 | if (command && !(sc->state & IPS_TIMEOUT)) { |
| 192 | SLIST_REMOVE_HEAD(&sc->free_cmd_list, next); |
| 193 | sc->used_commands++; |
| 194 | splx(mask); |
| 195 | clear_ips_command(command); |
| 196 | bzero(command->command_buffer, IPS_COMMAND_LEN); |
| 197 | free(waiter, M_IPSBUF); |
| 198 | command->arg = data; |
| 199 | return callback(command); |
| 200 | } |
| 201 | DEVICE_PRINTF(1, sc->dev, "adding command to the wait queue\n"); |
| 202 | waiter->callback = callback; |
| 203 | waiter->data = data; |
| 204 | STAILQ_INSERT_TAIL(&sc->cmd_wait_list, waiter, next); |
| 205 | splx(mask); |
| 206 | return 0; |
| 207 | } |
| 208 | |
| 209 | static void |
| 210 | ips_run_waiting_command(ips_softc_t *sc) |
| 211 | { |
| 212 | ips_wait_list_t *waiter; |
| 213 | ips_command_t *command; |
| 214 | int (*callback)(ips_command_t*); |
| 215 | intrmask_t mask; |
| 216 | |
| 217 | mask = splbio(); |
| 218 | waiter = STAILQ_FIRST(&sc->cmd_wait_list); |
| 219 | command = SLIST_FIRST(&sc->free_cmd_list); |
| 220 | if (waiter == NULL || command == NULL) { |
| 221 | splx(mask); |
| 222 | return; |
| 223 | } |
| 224 | DEVICE_PRINTF(1, sc->dev, "removing command from wait queue\n"); |
| 225 | SLIST_REMOVE_HEAD(&sc->free_cmd_list, next); |
| 226 | STAILQ_REMOVE_HEAD(&sc->cmd_wait_list, next); |
| 227 | sc->used_commands++; |
| 228 | splx(mask); |
| 229 | clear_ips_command(command); |
| 230 | bzero(command->command_buffer, IPS_COMMAND_LEN); |
| 231 | command->arg = waiter->data; |
| 232 | callback = waiter->callback; |
| 233 | free(waiter, M_IPSBUF); |
| 234 | callback(command); |
| 235 | return; |
| 236 | } |
| 237 | |
| 238 | /* |
| 239 | * returns a free command struct if one is available. |
| 240 | * It also blanks out anything that may be a wild pointer/value. |
| 241 | * Also, command buffers are not freed. They are |
| 242 | * small so they are saved and kept dmamapped and loaded. |
| 243 | */ |
| 244 | int |
| 245 | ips_get_free_cmd(ips_softc_t *sc, int (*callback)(ips_command_t *), void *data, |
| 246 | unsigned long flags) |
| 247 | { |
| 248 | ips_command_t *command; |
| 249 | intrmask_t mask; |
| 250 | |
| 251 | mask = splbio(); |
| 252 | if (sc->state & IPS_OFFLINE) { |
| 253 | splx(mask); |
| 254 | return EIO; |
| 255 | } |
| 256 | command = SLIST_FIRST(&sc->free_cmd_list); |
| 257 | if (!command || (sc->state & IPS_TIMEOUT)) { |
| 258 | splx(mask); |
| 259 | if (flags & IPS_NOWAIT_FLAG) |
| 260 | return EAGAIN; |
| 261 | return ips_add_waiting_command(sc, callback, data); |
| 262 | } |
| 263 | SLIST_REMOVE_HEAD(&sc->free_cmd_list, next); |
| 264 | sc->used_commands++; |
| 265 | splx(mask); |
| 266 | clear_ips_command(command); |
| 267 | bzero(command->command_buffer, IPS_COMMAND_LEN); |
| 268 | command->arg = data; |
| 269 | return callback(command); |
| 270 | } |
| 271 | |
| 272 | /* adds a command back to the free command queue */ |
| 273 | void |
| 274 | ips_insert_free_cmd(ips_softc_t *sc, ips_command_t *command) |
| 275 | { |
| 276 | intrmask_t mask; |
| 277 | |
| 278 | mask = splbio(); |
| 279 | SLIST_INSERT_HEAD(&sc->free_cmd_list, command, next); |
| 280 | sc->used_commands--; |
| 281 | splx(mask); |
| 282 | if (!(sc->state & IPS_TIMEOUT)) |
| 283 | ips_run_waiting_command(sc); |
| 284 | } |
| 285 | static const char * |
| 286 | ips_diskdev_statename(u_int8_t state) |
| 287 | { |
| 288 | static char statebuf[20]; |
| 289 | |
| 290 | switch(state) { |
| 291 | case IPS_LD_OFFLINE: |
| 292 | return("OFFLINE"); |
| 293 | break; |
| 294 | case IPS_LD_OKAY: |
| 295 | return("OK"); |
| 296 | break; |
| 297 | case IPS_LD_DEGRADED: |
| 298 | return("DEGRADED"); |
| 299 | break; |
| 300 | case IPS_LD_FREE: |
| 301 | return("FREE"); |
| 302 | break; |
| 303 | case IPS_LD_SYS: |
| 304 | return("SYS"); |
| 305 | break; |
| 306 | case IPS_LD_CRS: |
| 307 | return("CRS"); |
| 308 | break; |
| 309 | } |
| 310 | sprintf(statebuf, "UNKNOWN(0x%02x)", state); |
| 311 | return (statebuf); |
| 312 | } |
| 313 | |
| 314 | static int |
| 315 | ips_diskdev_init(ips_softc_t *sc) |
| 316 | { |
| 317 | int i; |
| 318 | |
| 319 | for (i = 0; i < IPS_MAX_NUM_DRIVES; i++) { |
| 320 | if (sc->drives[i].state == IPS_LD_FREE) |
| 321 | continue; |
| 322 | device_printf(sc->dev, |
| 323 | "Logical Drive %d: RAID%d sectors: %u, state %s\n", i, |
| 324 | sc->drives[i].raid_lvl, sc->drives[i].sector_count, |
| 325 | ips_diskdev_statename(sc->drives[i].state)); |
| 326 | if (sc->drives[i].state == IPS_LD_OKAY || |
| 327 | sc->drives[i].state == IPS_LD_DEGRADED) { |
| 328 | sc->diskdev[i] = device_add_child(sc->dev, NULL, -1); |
| 329 | device_set_ivars(sc->diskdev[i], (void *)(uintptr_t)i); |
| 330 | } |
| 331 | } |
| 332 | if (bus_generic_attach(sc->dev)) |
| 333 | device_printf(sc->dev, "Attaching bus failed\n"); |
| 334 | return 0; |
| 335 | } |
| 336 | |
| 337 | static int |
| 338 | ips_diskdev_free(ips_softc_t *sc) |
| 339 | { |
| 340 | int i; |
| 341 | int error = 0; |
| 342 | |
| 343 | for (i = 0; i < IPS_MAX_NUM_DRIVES; i++) { |
| 344 | if (sc->diskdev[i] != NULL) { |
| 345 | error = device_delete_child(sc->dev, sc->diskdev[i]); |
| 346 | if (error) |
| 347 | return error; |
| 348 | } |
| 349 | } |
| 350 | bus_generic_detach(sc->dev); |
| 351 | return 0; |
| 352 | } |
| 353 | |
| 354 | /* |
| 355 | * ips_timeout is periodically called to make sure no commands sent |
| 356 | * to the card have become stuck. If it finds a stuck command, it |
| 357 | * sets a flag so the driver won't start any more commands and then |
| 358 | * is periodically called to see if all outstanding commands have |
| 359 | * either finished or timed out. Once timed out, an attempt to |
| 360 | * reinitialize the card is made. If that fails, the driver gives |
| 361 | * up and declares the card dead. |
| 362 | */ |
| 363 | static void |
| 364 | ips_timeout(void *arg) |
| 365 | { |
| 366 | ips_command_t *command; |
| 367 | ips_softc_t *sc = arg; |
| 368 | intrmask_t mask; |
| 369 | int i, state = 0; |
| 370 | |
| 371 | command = &sc->commandarray[0]; |
| 372 | mask = splbio(); |
| 373 | for (i = 0; i < sc->max_cmds; i++) { |
| 374 | if (!command[i].timeout) |
| 375 | continue; |
| 376 | command[i].timeout--; |
| 377 | if (command[i].timeout == 0) { |
| 378 | if (!(sc->state & IPS_TIMEOUT)) { |
| 379 | sc->state |= IPS_TIMEOUT; |
| 380 | device_printf(sc->dev, "WARNING: command timeout. Adapter is in toaster mode, resetting to known state\n"); |
| 381 | } |
| 382 | command[i].status.value = IPS_ERROR_STATUS; |
| 383 | command[i].callback(&command[i]); |
| 384 | /* hmm, this should be enough cleanup */ |
| 385 | } else |
| 386 | state = 1; |
| 387 | } |
| 388 | if (!state && (sc->state & IPS_TIMEOUT)) { |
| 389 | if (sc->ips_adapter_reinit(sc, 1)) { |
| 390 | device_printf(sc->dev, "AIEE! adapter reset failed, " |
| 391 | "giving up and going home! Have a nice day.\n"); |
| 392 | sc->state |= IPS_OFFLINE; |
| 393 | sc->state &= ~IPS_TIMEOUT; |
| 394 | /* |
| 395 | * Grr, I hate this solution. I run waiting commands |
| 396 | * one at a time and error them out just before they |
| 397 | * would go to the card. This sucks. |
| 398 | */ |
| 399 | } else |
| 400 | sc->state &= ~IPS_TIMEOUT; |
| 401 | ips_run_waiting_command(sc); |
| 402 | } |
| 403 | if (sc->state != IPS_OFFLINE) |
| 404 | callout_reset(&sc->timer, 10 * hz, ips_timeout, sc); |
| 405 | splx(mask); |
| 406 | } |
| 407 | |
| 408 | /* check card and initialize it */ |
| 409 | int |
| 410 | ips_adapter_init(ips_softc_t *sc) |
| 411 | { |
| 412 | int i; |
| 413 | dev_t dev; |
| 414 | |
| 415 | DEVICE_PRINTF(1, sc->dev, "initializing\n"); |
| 416 | if (bus_dma_tag_create( /* parent */ sc->adapter_dmatag, |
| 417 | /* alignemnt */ 1, |
| 418 | /* boundary */ 0, |
| 419 | /* lowaddr */ BUS_SPACE_MAXADDR_32BIT, |
| 420 | /* highaddr */ BUS_SPACE_MAXADDR, |
| 421 | /* filter */ NULL, |
| 422 | /* filterarg */ NULL, |
| 423 | /* maxsize */ IPS_COMMAND_LEN + |
| 424 | IPS_MAX_SG_LEN, |
| 425 | /* numsegs */ 1, |
| 426 | /* maxsegsize*/ IPS_COMMAND_LEN + |
| 427 | IPS_MAX_SG_LEN, |
| 428 | /* flags */ 0, |
| 429 | &sc->command_dmatag) != 0) { |
| 430 | device_printf(sc->dev, "can't alloc command dma tag\n"); |
| 431 | goto error; |
| 432 | } |
| 433 | if (bus_dma_tag_create( /* parent */ sc->adapter_dmatag, |
| 434 | /* alignemnt */ 1, |
| 435 | /* boundary */ 0, |
| 436 | /* lowaddr */ BUS_SPACE_MAXADDR_32BIT, |
| 437 | /* highaddr */ BUS_SPACE_MAXADDR, |
| 438 | /* filter */ NULL, |
| 439 | /* filterarg */ NULL, |
| 440 | /* maxsize */ IPS_MAX_IOBUF_SIZE, |
| 441 | /* numsegs */ IPS_MAX_SG_ELEMENTS, |
| 442 | /* maxsegsize*/ IPS_MAX_IOBUF_SIZE, |
| 443 | /* flags */ 0, |
| 444 | &sc->sg_dmatag) != 0) { |
| 445 | device_printf(sc->dev, "can't alloc SG dma tag\n"); |
| 446 | goto error; |
| 447 | } |
| 448 | /* |
| 449 | * create one command buffer until we know how many commands this card |
| 450 | * can handle |
| 451 | */ |
| 452 | sc->max_cmds = 1; |
| 453 | ips_cmdqueue_init(sc); |
| 454 | callout_init(&sc->timer); |
| 455 | if (sc->ips_adapter_reinit(sc, 0)) |
| 456 | goto error; |
| 457 | /* initialize ffdc values */ |
| 458 | microtime(&sc->ffdc_resettime); |
| 459 | sc->ffdc_resetcount = 1; |
| 460 | if ((i = ips_ffdc_reset(sc)) != 0) { |
| 461 | device_printf(sc->dev, |
| 462 | "failed to send ffdc reset to device (%d)\n", i); |
| 463 | goto error; |
| 464 | } |
| 465 | if ((i = ips_get_adapter_info(sc)) != 0) { |
| 466 | device_printf(sc->dev, "failed to get adapter configuration " |
| 467 | "data from device (%d)\n", i); |
| 468 | goto error; |
| 469 | } |
| 470 | /* no error check as failure doesn't matter */ |
| 471 | ips_update_nvram(sc); |
| 472 | if (sc->adapter_type > 0 && sc->adapter_type <= IPS_ADAPTER_MAX_T) { |
| 473 | device_printf(sc->dev, "adapter type: %s\n", |
| 474 | ips_adapter_name[sc->adapter_type]); |
| 475 | } |
| 476 | if ((i = ips_get_drive_info(sc)) != 0) { |
| 477 | device_printf(sc->dev, "failed to get drive " |
| 478 | "configuration data from device (%d)\n", i); |
| 479 | goto error; |
| 480 | } |
| 481 | ips_cmdqueue_free(sc); |
| 482 | if (sc->adapter_info.max_concurrent_cmds) |
| 483 | sc->max_cmds = min(128, sc->adapter_info.max_concurrent_cmds); |
| 484 | else |
| 485 | sc->max_cmds = 32; |
| 486 | if (ips_cmdqueue_init(sc)) { |
| 487 | device_printf(sc->dev, |
| 488 | "failed to initialize command buffers\n"); |
| 489 | goto error; |
| 490 | } |
| 491 | cdevsw_add(&ips_cdevsw, -1, device_get_unit(sc->dev)); |
| 492 | dev = make_dev(&ips_cdevsw, device_get_unit(sc->dev), |
| 493 | UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, |
| 494 | "ips%d", device_get_unit(sc->dev)); |
| 495 | dev->si_drv1 = sc; |
| 496 | ips_diskdev_init(sc); |
| 497 | callout_reset(&sc->timer, 10 * hz, ips_timeout, sc); |
| 498 | return 0; |
| 499 | error: |
| 500 | ips_adapter_free(sc); |
| 501 | return ENXIO; |
| 502 | } |
| 503 | |
| 504 | /* |
| 505 | * see if we should reinitialize the card and wait for it to timeout |
| 506 | * or complete initialization |
| 507 | */ |
| 508 | int |
| 509 | ips_morpheus_reinit(ips_softc_t *sc, int force) |
| 510 | { |
| 511 | u_int32_t tmp; |
| 512 | int i; |
| 513 | |
| 514 | tmp = ips_read_4(sc, MORPHEUS_REG_OISR); |
| 515 | if (!force && (ips_read_4(sc, MORPHEUS_REG_OMR0) >= IPS_POST1_OK) && |
| 516 | (ips_read_4(sc, MORPHEUS_REG_OMR1) != 0xdeadbeef) && !tmp) { |
| 517 | ips_write_4(sc, MORPHEUS_REG_OIMR, 0); |
| 518 | return 0; |
| 519 | } |
| 520 | ips_write_4(sc, MORPHEUS_REG_OIMR, 0xff); |
| 521 | ips_read_4(sc, MORPHEUS_REG_OIMR); |
| 522 | device_printf(sc->dev, |
| 523 | "resetting adapter, this may take up to 5 minutes\n"); |
| 524 | ips_write_4(sc, MORPHEUS_REG_IDR, 0x80000000); |
| 525 | DELAY(5000000); |
| 526 | pci_read_config(sc->dev, 0, 4); |
| 527 | tmp = ips_read_4(sc, MORPHEUS_REG_OISR); |
| 528 | for (i = 0; i < 45 && !(tmp & MORPHEUS_BIT_POST1); i++) { |
| 529 | DELAY(1000000); |
| 530 | DEVICE_PRINTF(2, sc->dev, "post1: %d\n", i); |
| 531 | tmp = ips_read_4(sc, MORPHEUS_REG_OISR); |
| 532 | } |
| 533 | if (tmp & MORPHEUS_BIT_POST1) |
| 534 | ips_write_4(sc, MORPHEUS_REG_OISR, MORPHEUS_BIT_POST1); |
| 535 | |
| 536 | if (i == 45 || ips_read_4(sc, MORPHEUS_REG_OMR0) < IPS_POST1_OK) { |
| 537 | device_printf(sc->dev, |
| 538 | "Adapter error during initialization.\n"); |
| 539 | return 1; |
| 540 | } |
| 541 | for (i = 0; i < 240 && !(tmp & MORPHEUS_BIT_POST2); i++) { |
| 542 | DELAY(1000000); |
| 543 | DEVICE_PRINTF(2, sc->dev, "post2: %d\n", i); |
| 544 | tmp = ips_read_4(sc, MORPHEUS_REG_OISR); |
| 545 | } |
| 546 | if (tmp & MORPHEUS_BIT_POST2) |
| 547 | ips_write_4(sc, MORPHEUS_REG_OISR, MORPHEUS_BIT_POST2); |
| 548 | |
| 549 | if (i == 240 || !ips_read_4(sc, MORPHEUS_REG_OMR1)) { |
| 550 | device_printf(sc->dev, "adapter failed config check\n"); |
| 551 | return 1; |
| 552 | } |
| 553 | ips_write_4(sc, MORPHEUS_REG_OIMR, 0); |
| 554 | if (force && ips_clear_adapter(sc)) { |
| 555 | device_printf(sc->dev, "adapter clear failed\n"); |
| 556 | return 1; |
| 557 | } |
| 558 | return 0; |
| 559 | } |
| 560 | |
| 561 | /* clean up so we can unload the driver. */ |
| 562 | int |
| 563 | ips_adapter_free(ips_softc_t *sc) |
| 564 | { |
| 565 | int error = 0; |
| 566 | intrmask_t mask; |
| 567 | if (sc->state & IPS_DEV_OPEN) |
| 568 | return EBUSY; |
| 569 | if ((error = ips_diskdev_free(sc))) |
| 570 | return error; |
| 571 | if (ips_cmdqueue_free(sc)) { |
| 572 | device_printf(sc->dev, |
| 573 | "trying to exit when command queue is not empty!\n"); |
| 574 | return EBUSY; |
| 575 | } |
| 576 | DEVICE_PRINTF(1, sc->dev, "free\n"); |
| 577 | mask = splbio(); |
| 578 | callout_stop(&sc->timer); |
| 579 | splx(mask); |
| 580 | if (sc->sg_dmatag) |
| 581 | bus_dma_tag_destroy(sc->sg_dmatag); |
| 582 | if (sc->command_dmatag) |
| 583 | bus_dma_tag_destroy(sc->command_dmatag); |
| 584 | cdevsw_remove(&ips_cdevsw, -1, device_get_unit(sc->dev)); |
| 585 | return 0; |
| 586 | } |
| 587 | |
| 588 | void |
| 589 | ips_morpheus_intr(void *void_sc) |
| 590 | { |
| 591 | ips_softc_t *sc = (ips_softc_t *)void_sc; |
| 592 | u_int32_t oisr, iisr; |
| 593 | ips_cmd_status_t status; |
| 594 | ips_command_t *command; |
| 595 | int cmdnumber; |
| 596 | |
| 597 | iisr =ips_read_4(sc, MORPHEUS_REG_IISR); |
| 598 | oisr =ips_read_4(sc, MORPHEUS_REG_OISR); |
| 599 | PRINTF(9, "interrupt registers in:%x out:%x\n", iisr, oisr); |
| 600 | if (!(oisr & MORPHEUS_BIT_CMD_IRQ)) { |
| 601 | DEVICE_PRINTF(2, sc->dev, "got a non-command irq\n"); |
| 602 | return; |
| 603 | } |
| 604 | while ((status.value = ips_read_4(sc, MORPHEUS_REG_OQPR)) |
| 605 | != 0xffffffff) { |
| 606 | cmdnumber = status.fields.command_id; |
| 607 | command = &sc->commandarray[cmdnumber]; |
| 608 | command->status.value = status.value; |
| 609 | command->timeout = 0; |
| 610 | command->callback(command); |
| 611 | DEVICE_PRINTF(9, sc->dev, "got command %d\n", cmdnumber); |
| 612 | } |
| 613 | return; |
| 614 | } |
| 615 | |
| 616 | void |
| 617 | ips_issue_morpheus_cmd(ips_command_t *command) |
| 618 | { |
| 619 | intrmask_t mask; |
| 620 | |
| 621 | mask = splbio(); |
| 622 | /* hmmm, is there a cleaner way to do this? */ |
| 623 | if (command->sc->state & IPS_OFFLINE) { |
| 624 | splx(mask); |
| 625 | command->status.value = IPS_ERROR_STATUS; |
| 626 | command->callback(command); |
| 627 | return; |
| 628 | } |
| 629 | command->timeout = 10; |
| 630 | ips_write_4(command->sc, MORPHEUS_REG_IQPR, command->command_phys_addr); |
| 631 | splx(mask); |
| 632 | } |
| 633 | |
| 634 | static void |
| 635 | ips_copperhead_queue_callback(void *queueptr, bus_dma_segment_t *segments, |
| 636 | int segnum, int error) |
| 637 | { |
| 638 | ips_copper_queue_t *queue = queueptr; |
| 639 | |
| 640 | if (error) |
| 641 | return; |
| 642 | queue->base_phys_addr = segments[0].ds_addr; |
| 643 | } |
| 644 | |
| 645 | static int |
| 646 | ips_copperhead_queue_init(ips_softc_t *sc) |
| 647 | { |
| 648 | bus_dma_tag_t dmatag; |
| 649 | bus_dmamap_t dmamap; |
| 650 | int error; |
| 651 | |
| 652 | if (bus_dma_tag_create( /* parent */ sc->adapter_dmatag, |
| 653 | /* alignemnt */ 1, |
| 654 | /* boundary */ 0, |
| 655 | /* lowaddr */ BUS_SPACE_MAXADDR_32BIT, |
| 656 | /* highaddr */ BUS_SPACE_MAXADDR, |
| 657 | /* filter */ NULL, |
| 658 | /* filterarg */ NULL, |
| 659 | /* maxsize */ sizeof(ips_copper_queue_t), |
| 660 | /* numsegs */ 1, |
| 661 | /* maxsegsize*/ sizeof(ips_copper_queue_t), |
| 662 | /* flags */ 0, |
| 663 | &dmatag) != 0) { |
| 664 | device_printf(sc->dev, "can't alloc dma tag for statue queue\n"); |
| 665 | error = ENOMEM; |
| 666 | goto exit; |
| 667 | } |
| 668 | if (bus_dmamem_alloc(dmatag, (void *)&(sc->copper_queue), |
| 669 | BUS_DMA_NOWAIT, &dmamap)) { |
| 670 | error = ENOMEM; |
| 671 | goto exit; |
| 672 | } |
| 673 | bzero(sc->copper_queue, sizeof(ips_copper_queue_t)); |
| 674 | sc->copper_queue->dmatag = dmatag; |
| 675 | sc->copper_queue->dmamap = dmamap; |
| 676 | sc->copper_queue->nextstatus = 1; |
| 677 | bus_dmamap_load(dmatag, dmamap, &(sc->copper_queue->status[0]), |
| 678 | IPS_MAX_CMD_NUM * 4, ips_copperhead_queue_callback, |
| 679 | sc->copper_queue, BUS_DMA_NOWAIT); |
| 680 | if (sc->copper_queue->base_phys_addr == 0) { |
| 681 | error = ENOMEM; |
| 682 | goto exit; |
| 683 | } |
| 684 | ips_write_4(sc, COPPER_REG_SQSR, sc->copper_queue->base_phys_addr); |
| 685 | ips_write_4(sc, COPPER_REG_SQER, sc->copper_queue->base_phys_addr + |
| 686 | IPS_MAX_CMD_NUM * 4); |
| 687 | ips_write_4(sc, COPPER_REG_SQHR, sc->copper_queue->base_phys_addr + 4); |
| 688 | ips_write_4(sc, COPPER_REG_SQTR, sc->copper_queue->base_phys_addr); |
| 689 | return 0; |
| 690 | exit: |
| 691 | bus_dmamem_free(dmatag, sc->copper_queue, dmamap); |
| 692 | bus_dma_tag_destroy(dmatag); |
| 693 | return error; |
| 694 | } |
| 695 | |
| 696 | /* |
| 697 | * see if we should reinitialize the card and wait for it to timeout or |
| 698 | * complete initialization FIXME |
| 699 | */ |
| 700 | int |
| 701 | ips_copperhead_reinit(ips_softc_t *sc, int force) |
| 702 | { |
| 703 | u_int32_t postcode = 0, configstatus = 0; |
| 704 | int i, j; |
| 705 | |
| 706 | ips_write_1(sc, COPPER_REG_SCPR, 0x80); |
| 707 | ips_write_1(sc, COPPER_REG_SCPR, 0); |
| 708 | device_printf(sc->dev, |
| 709 | "reinitializing adapter, this could take several minutes.\n"); |
| 710 | for (j = 0; j < 2; j++) { |
| 711 | postcode <<= 8; |
| 712 | for (i = 0; i < 45; i++) { |
| 713 | if (ips_read_1(sc, COPPER_REG_HISR) & COPPER_GHI_BIT) { |
| 714 | postcode |= ips_read_1(sc, COPPER_REG_ISPR); |
| 715 | ips_write_1(sc, COPPER_REG_HISR, |
| 716 | COPPER_GHI_BIT); |
| 717 | break; |
| 718 | } else |
| 719 | DELAY(1000000); |
| 720 | } |
| 721 | if (i == 45) |
| 722 | return 1; |
| 723 | } |
| 724 | for (j = 0; j < 2; j++) { |
| 725 | configstatus <<= 8; |
| 726 | for (i = 0; i < 240; i++) { |
| 727 | if (ips_read_1(sc, COPPER_REG_HISR) & COPPER_GHI_BIT) { |
| 728 | configstatus |= ips_read_1(sc, COPPER_REG_ISPR); |
| 729 | ips_write_1(sc, COPPER_REG_HISR, |
| 730 | COPPER_GHI_BIT); |
| 731 | break; |
| 732 | } else |
| 733 | DELAY(1000000); |
| 734 | } |
| 735 | if (i == 240) |
| 736 | return 1; |
| 737 | } |
| 738 | for (i = 0; i < 240; i++) { |
| 739 | if (!(ips_read_1(sc, COPPER_REG_CBSP) & COPPER_OP_BIT)) |
| 740 | break; |
| 741 | else |
| 742 | DELAY(1000000); |
| 743 | } |
| 744 | if (i == 240) |
| 745 | return 1; |
| 746 | ips_write_2(sc, COPPER_REG_CCCR, 0x1000 | COPPER_ILE_BIT); |
| 747 | ips_write_1(sc, COPPER_REG_SCPR, COPPER_EBM_BIT); |
| 748 | ips_copperhead_queue_init(sc); |
| 749 | ips_write_1(sc, COPPER_REG_HISR, COPPER_GHI_BIT); |
| 750 | i = ips_read_1(sc, COPPER_REG_SCPR); |
| 751 | ips_write_1(sc, COPPER_REG_HISR, COPPER_EI_BIT); |
| 752 | if (configstatus == 0) { |
| 753 | device_printf(sc->dev, "adapter initialization failed\n"); |
| 754 | return 1; |
| 755 | } |
| 756 | if (force && ips_clear_adapter(sc)) { |
| 757 | device_printf(sc->dev, "adapter clear failed\n"); |
| 758 | return 1; |
| 759 | } |
| 760 | return 0; |
| 761 | } |
| 762 | |
| 763 | static u_int32_t |
| 764 | ips_copperhead_cmd_status(ips_softc_t *sc) |
| 765 | { |
| 766 | intrmask_t mask; |
| 767 | u_int32_t value; |
| 768 | int statnum; |
| 769 | |
| 770 | statnum = sc->copper_queue->nextstatus++; |
| 771 | if (sc->copper_queue->nextstatus == IPS_MAX_CMD_NUM) |
| 772 | sc->copper_queue->nextstatus = 0; |
| 773 | mask = splbio(); |
| 774 | value = sc->copper_queue->status[statnum]; |
| 775 | ips_write_4(sc, COPPER_REG_SQTR, sc->copper_queue->base_phys_addr + |
| 776 | 4 * statnum); |
| 777 | splx(mask); |
| 778 | return value; |
| 779 | } |
| 780 | |
| 781 | void |
| 782 | ips_copperhead_intr(void *void_sc) |
| 783 | { |
| 784 | ips_softc_t *sc = (ips_softc_t *)void_sc; |
| 785 | ips_cmd_status_t status; |
| 786 | int cmdnumber; |
| 787 | |
| 788 | while (ips_read_1(sc, COPPER_REG_HISR) & COPPER_SCE_BIT) { |
| 789 | status.value = ips_copperhead_cmd_status(sc); |
| 790 | cmdnumber = status.fields.command_id; |
| 791 | sc->commandarray[cmdnumber].status.value = status.value; |
| 792 | sc->commandarray[cmdnumber].timeout = 0; |
| 793 | sc->commandarray[cmdnumber].callback(&(sc->commandarray[cmdnumber])); |
| 794 | PRINTF(9, "ips: got command %d\n", cmdnumber); |
| 795 | } |
| 796 | return; |
| 797 | } |
| 798 | |
| 799 | void |
| 800 | ips_issue_copperhead_cmd(ips_command_t *command) |
| 801 | { |
| 802 | intrmask_t mask; |
| 803 | int i; |
| 804 | |
| 805 | mask = splbio(); |
| 806 | /* hmmm, is there a cleaner way to do this? */ |
| 807 | if (command->sc->state & IPS_OFFLINE) { |
| 808 | splx(mask); |
| 809 | command->status.value = IPS_ERROR_STATUS; |
| 810 | command->callback(command); |
| 811 | return; |
| 812 | } |
| 813 | command->timeout = 10; |
| 814 | for (i = 0; ips_read_4(command->sc, COPPER_REG_CCCR) & COPPER_SEM_BIT; |
| 815 | i++) { |
| 816 | if (i == 20) { |
| 817 | printf("sem bit still set, can't send a command\n"); |
| 818 | splx(mask); |
| 819 | return; |
| 820 | } |
| 821 | DELAY(500); /* need to do a delay here */ |
| 822 | } |
| 823 | ips_write_4(command->sc, COPPER_REG_CCSAR, command->command_phys_addr); |
| 824 | ips_write_2(command->sc, COPPER_REG_CCCR, COPPER_CMD_START); |
| 825 | splx(mask); |
| 826 | } |