| 1 | /* $NetBSD: iop.c,v 1.87 2015/08/16 19:21:33 msaitoh Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c) 2000, 2001, 2002, 2007 The NetBSD Foundation, Inc. |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * This code is derived from software contributed to The NetBSD Foundation |
| 8 | * by Andrew Doran. |
| 9 | * |
| 10 | * Redistribution and use in source and binary forms, with or without |
| 11 | * modification, are permitted provided that the following conditions |
| 12 | * are met: |
| 13 | * 1. Redistributions of source code must retain the above copyright |
| 14 | * notice, this list of conditions and the following disclaimer. |
| 15 | * 2. Redistributions in binary form must reproduce the above copyright |
| 16 | * notice, this list of conditions and the following disclaimer in the |
| 17 | * documentation and/or other materials provided with the distribution. |
| 18 | * |
| 19 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
| 20 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| 21 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
| 23 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 24 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 25 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 27 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 29 | * POSSIBILITY OF SUCH DAMAGE. |
| 30 | */ |
| 31 | |
| 32 | /* |
| 33 | * Support for I2O IOPs (intelligent I/O processors). |
| 34 | */ |
| 35 | |
| 36 | #include <sys/cdefs.h> |
| 37 | __KERNEL_RCSID(0, "$NetBSD: iop.c,v 1.87 2015/08/16 19:21:33 msaitoh Exp $" ); |
| 38 | |
| 39 | #include "iop.h" |
| 40 | |
| 41 | #include <sys/param.h> |
| 42 | #include <sys/systm.h> |
| 43 | #include <sys/kernel.h> |
| 44 | #include <sys/device.h> |
| 45 | #include <sys/queue.h> |
| 46 | #include <sys/proc.h> |
| 47 | #include <sys/malloc.h> |
| 48 | #include <sys/ioctl.h> |
| 49 | #include <sys/endian.h> |
| 50 | #include <sys/conf.h> |
| 51 | #include <sys/kthread.h> |
| 52 | #include <sys/kauth.h> |
| 53 | #include <sys/bus.h> |
| 54 | |
| 55 | #include <dev/i2o/i2o.h> |
| 56 | #include <dev/i2o/iopio.h> |
| 57 | #include <dev/i2o/iopreg.h> |
| 58 | #include <dev/i2o/iopvar.h> |
| 59 | |
| 60 | #include "locators.h" |
| 61 | |
| 62 | #define POLL(ms, cond) \ |
| 63 | do { \ |
| 64 | int xi; \ |
| 65 | for (xi = (ms) * 10; xi; xi--) { \ |
| 66 | if (cond) \ |
| 67 | break; \ |
| 68 | DELAY(100); \ |
| 69 | } \ |
| 70 | } while (/* CONSTCOND */0); |
| 71 | |
| 72 | #ifdef I2ODEBUG |
| 73 | #define DPRINTF(x) printf x |
| 74 | #else |
| 75 | #define DPRINTF(x) |
| 76 | #endif |
| 77 | |
| 78 | #define IOP_ICTXHASH_NBUCKETS 16 |
| 79 | #define IOP_ICTXHASH(ictx) (&iop_ictxhashtbl[(ictx) & iop_ictxhash]) |
| 80 | |
| 81 | #define IOP_MAX_SEGS (((IOP_MAX_XFER + PAGE_SIZE - 1) / PAGE_SIZE) + 1) |
| 82 | |
| 83 | #define IOP_TCTX_SHIFT 12 |
| 84 | #define IOP_TCTX_MASK ((1 << IOP_TCTX_SHIFT) - 1) |
| 85 | |
| 86 | static LIST_HEAD(, iop_initiator) *iop_ictxhashtbl; |
| 87 | static u_long iop_ictxhash; |
| 88 | static void *iop_sdh; |
| 89 | static struct i2o_systab *iop_systab; |
| 90 | static int iop_systab_size; |
| 91 | |
| 92 | extern struct cfdriver iop_cd; |
| 93 | |
| 94 | dev_type_open(iopopen); |
| 95 | dev_type_close(iopclose); |
| 96 | dev_type_ioctl(iopioctl); |
| 97 | |
| 98 | const struct cdevsw iop_cdevsw = { |
| 99 | .d_open = iopopen, |
| 100 | .d_close = iopclose, |
| 101 | .d_read = noread, |
| 102 | .d_write = nowrite, |
| 103 | .d_ioctl = iopioctl, |
| 104 | .d_stop = nostop, |
| 105 | .d_tty = notty, |
| 106 | .d_poll = nopoll, |
| 107 | .d_mmap = nommap, |
| 108 | .d_kqfilter = nokqfilter, |
| 109 | .d_discard = nodiscard, |
| 110 | .d_flag = D_OTHER, |
| 111 | }; |
| 112 | |
| 113 | #define IC_CONFIGURE 0x01 |
| 114 | #define IC_PRIORITY 0x02 |
| 115 | |
| 116 | static struct iop_class { |
| 117 | u_short ic_class; |
| 118 | u_short ic_flags; |
| 119 | const char *ic_caption; |
| 120 | } const iop_class[] = { |
| 121 | { |
| 122 | I2O_CLASS_EXECUTIVE, |
| 123 | 0, |
| 124 | "executive" |
| 125 | }, |
| 126 | { |
| 127 | I2O_CLASS_DDM, |
| 128 | 0, |
| 129 | "device driver module" |
| 130 | }, |
| 131 | { |
| 132 | I2O_CLASS_RANDOM_BLOCK_STORAGE, |
| 133 | IC_CONFIGURE | IC_PRIORITY, |
| 134 | "random block storage" |
| 135 | }, |
| 136 | { |
| 137 | I2O_CLASS_SEQUENTIAL_STORAGE, |
| 138 | IC_CONFIGURE | IC_PRIORITY, |
| 139 | "sequential storage" |
| 140 | }, |
| 141 | { |
| 142 | I2O_CLASS_LAN, |
| 143 | IC_CONFIGURE | IC_PRIORITY, |
| 144 | "LAN port" |
| 145 | }, |
| 146 | { |
| 147 | I2O_CLASS_WAN, |
| 148 | IC_CONFIGURE | IC_PRIORITY, |
| 149 | "WAN port" |
| 150 | }, |
| 151 | { |
| 152 | I2O_CLASS_FIBRE_CHANNEL_PORT, |
| 153 | IC_CONFIGURE, |
| 154 | "fibrechannel port" |
| 155 | }, |
| 156 | { |
| 157 | I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL, |
| 158 | 0, |
| 159 | "fibrechannel peripheral" |
| 160 | }, |
| 161 | { |
| 162 | I2O_CLASS_SCSI_PERIPHERAL, |
| 163 | 0, |
| 164 | "SCSI peripheral" |
| 165 | }, |
| 166 | { |
| 167 | I2O_CLASS_ATE_PORT, |
| 168 | IC_CONFIGURE, |
| 169 | "ATE port" |
| 170 | }, |
| 171 | { |
| 172 | I2O_CLASS_ATE_PERIPHERAL, |
| 173 | 0, |
| 174 | "ATE peripheral" |
| 175 | }, |
| 176 | { |
| 177 | I2O_CLASS_FLOPPY_CONTROLLER, |
| 178 | IC_CONFIGURE, |
| 179 | "floppy controller" |
| 180 | }, |
| 181 | { |
| 182 | I2O_CLASS_FLOPPY_DEVICE, |
| 183 | 0, |
| 184 | "floppy device" |
| 185 | }, |
| 186 | { |
| 187 | I2O_CLASS_BUS_ADAPTER_PORT, |
| 188 | IC_CONFIGURE, |
| 189 | "bus adapter port" |
| 190 | }, |
| 191 | }; |
| 192 | |
| 193 | #ifdef I2ODEBUG |
| 194 | static const char * const iop_status[] = { |
| 195 | "success" , |
| 196 | "abort (dirty)" , |
| 197 | "abort (no data transfer)" , |
| 198 | "abort (partial transfer)" , |
| 199 | "error (dirty)" , |
| 200 | "error (no data transfer)" , |
| 201 | "error (partial transfer)" , |
| 202 | "undefined error code" , |
| 203 | "process abort (dirty)" , |
| 204 | "process abort (no data transfer)" , |
| 205 | "process abort (partial transfer)" , |
| 206 | "transaction error" , |
| 207 | }; |
| 208 | #endif |
| 209 | |
| 210 | static inline u_int32_t iop_inl(struct iop_softc *, int); |
| 211 | static inline void iop_outl(struct iop_softc *, int, u_int32_t); |
| 212 | |
| 213 | static inline u_int32_t iop_inl_msg(struct iop_softc *, int); |
| 214 | static inline void iop_outl_msg(struct iop_softc *, int, u_int32_t); |
| 215 | |
| 216 | static void iop_config_interrupts(device_t); |
| 217 | static void iop_configure_devices(struct iop_softc *, int, int); |
| 218 | static void iop_devinfo(int, char *, size_t); |
| 219 | static int iop_print(void *, const char *); |
| 220 | static void iop_shutdown(void *); |
| 221 | |
| 222 | static void iop_adjqparam(struct iop_softc *, int); |
| 223 | static int iop_handle_reply(struct iop_softc *, u_int32_t); |
| 224 | static int iop_hrt_get(struct iop_softc *); |
| 225 | static int iop_hrt_get0(struct iop_softc *, struct i2o_hrt *, int); |
| 226 | static void iop_intr_event(device_t, struct iop_msg *, void *); |
| 227 | static int iop_lct_get0(struct iop_softc *, struct i2o_lct *, int, |
| 228 | u_int32_t); |
| 229 | static void iop_msg_poll(struct iop_softc *, struct iop_msg *, int); |
| 230 | static void iop_msg_wait(struct iop_softc *, struct iop_msg *, int); |
| 231 | static int iop_ofifo_init(struct iop_softc *); |
| 232 | static int iop_passthrough(struct iop_softc *, struct ioppt *, |
| 233 | struct proc *); |
| 234 | static void iop_reconf_thread(void *); |
| 235 | static void iop_release_mfa(struct iop_softc *, u_int32_t); |
| 236 | static int iop_reset(struct iop_softc *); |
| 237 | static int iop_sys_enable(struct iop_softc *); |
| 238 | static int iop_systab_set(struct iop_softc *); |
| 239 | static void iop_tfn_print(struct iop_softc *, struct i2o_fault_notify *); |
| 240 | |
| 241 | #ifdef I2ODEBUG |
| 242 | static void iop_reply_print(struct iop_softc *, struct i2o_reply *); |
| 243 | #endif |
| 244 | |
| 245 | static inline u_int32_t |
| 246 | iop_inl(struct iop_softc *sc, int off) |
| 247 | { |
| 248 | |
| 249 | bus_space_barrier(sc->sc_iot, sc->sc_ioh, off, 4, |
| 250 | BUS_SPACE_BARRIER_WRITE | BUS_SPACE_BARRIER_READ); |
| 251 | return (bus_space_read_4(sc->sc_iot, sc->sc_ioh, off)); |
| 252 | } |
| 253 | |
| 254 | static inline void |
| 255 | iop_outl(struct iop_softc *sc, int off, u_int32_t val) |
| 256 | { |
| 257 | |
| 258 | bus_space_write_4(sc->sc_iot, sc->sc_ioh, off, val); |
| 259 | bus_space_barrier(sc->sc_iot, sc->sc_ioh, off, 4, |
| 260 | BUS_SPACE_BARRIER_WRITE); |
| 261 | } |
| 262 | |
| 263 | static inline u_int32_t |
| 264 | iop_inl_msg(struct iop_softc *sc, int off) |
| 265 | { |
| 266 | |
| 267 | bus_space_barrier(sc->sc_msg_iot, sc->sc_msg_ioh, off, 4, |
| 268 | BUS_SPACE_BARRIER_WRITE | BUS_SPACE_BARRIER_READ); |
| 269 | return (bus_space_read_4(sc->sc_msg_iot, sc->sc_msg_ioh, off)); |
| 270 | } |
| 271 | |
| 272 | static inline void |
| 273 | iop_outl_msg(struct iop_softc *sc, int off, u_int32_t val) |
| 274 | { |
| 275 | |
| 276 | bus_space_write_4(sc->sc_msg_iot, sc->sc_msg_ioh, off, val); |
| 277 | bus_space_barrier(sc->sc_msg_iot, sc->sc_msg_ioh, off, 4, |
| 278 | BUS_SPACE_BARRIER_WRITE); |
| 279 | } |
| 280 | |
| 281 | /* |
| 282 | * Initialise the IOP and our interface. |
| 283 | */ |
| 284 | void |
| 285 | iop_init(struct iop_softc *sc, const char *intrstr) |
| 286 | { |
| 287 | struct iop_msg *im; |
| 288 | int rv, i, j, state, nsegs; |
| 289 | u_int32_t mask; |
| 290 | char ident[64]; |
| 291 | |
| 292 | state = 0; |
| 293 | |
| 294 | printf("I2O adapter" ); |
| 295 | |
| 296 | mutex_init(&sc->sc_intrlock, MUTEX_DEFAULT, IPL_VM); |
| 297 | mutex_init(&sc->sc_conflock, MUTEX_DEFAULT, IPL_NONE); |
| 298 | cv_init(&sc->sc_confcv, "iopconf" ); |
| 299 | |
| 300 | if (iop_ictxhashtbl == NULL) { |
| 301 | iop_ictxhashtbl = hashinit(IOP_ICTXHASH_NBUCKETS, HASH_LIST, |
| 302 | true, &iop_ictxhash); |
| 303 | } |
| 304 | |
| 305 | /* Disable interrupts at the IOP. */ |
| 306 | mask = iop_inl(sc, IOP_REG_INTR_MASK); |
| 307 | iop_outl(sc, IOP_REG_INTR_MASK, mask | IOP_INTR_OFIFO); |
| 308 | |
| 309 | /* Allocate a scratch DMA map for small miscellaneous shared data. */ |
| 310 | if (bus_dmamap_create(sc->sc_dmat, PAGE_SIZE, 1, PAGE_SIZE, 0, |
| 311 | BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, &sc->sc_scr_dmamap) != 0) { |
| 312 | aprint_error_dev(sc->sc_dev, "cannot create scratch dmamap\n" ); |
| 313 | return; |
| 314 | } |
| 315 | |
| 316 | if (bus_dmamem_alloc(sc->sc_dmat, PAGE_SIZE, PAGE_SIZE, 0, |
| 317 | sc->sc_scr_seg, 1, &nsegs, BUS_DMA_NOWAIT) != 0) { |
| 318 | aprint_error_dev(sc->sc_dev, "cannot alloc scratch dmamem\n" ); |
| 319 | goto bail_out; |
| 320 | } |
| 321 | state++; |
| 322 | |
| 323 | if (bus_dmamem_map(sc->sc_dmat, sc->sc_scr_seg, nsegs, PAGE_SIZE, |
| 324 | &sc->sc_scr, 0)) { |
| 325 | aprint_error_dev(sc->sc_dev, "cannot map scratch dmamem\n" ); |
| 326 | goto bail_out; |
| 327 | } |
| 328 | state++; |
| 329 | |
| 330 | if (bus_dmamap_load(sc->sc_dmat, sc->sc_scr_dmamap, sc->sc_scr, |
| 331 | PAGE_SIZE, NULL, BUS_DMA_NOWAIT)) { |
| 332 | aprint_error_dev(sc->sc_dev, "cannot load scratch dmamap\n" ); |
| 333 | goto bail_out; |
| 334 | } |
| 335 | state++; |
| 336 | |
| 337 | #ifdef I2ODEBUG |
| 338 | /* So that our debug checks don't choke. */ |
| 339 | sc->sc_framesize = 128; |
| 340 | #endif |
| 341 | |
| 342 | /* Avoid syncing the reply map until it's set up. */ |
| 343 | sc->sc_curib = 0x123; |
| 344 | |
| 345 | /* Reset the adapter and request status. */ |
| 346 | if ((rv = iop_reset(sc)) != 0) { |
| 347 | aprint_error_dev(sc->sc_dev, "not responding (reset)\n" ); |
| 348 | goto bail_out; |
| 349 | } |
| 350 | |
| 351 | if ((rv = iop_status_get(sc, 1)) != 0) { |
| 352 | aprint_error_dev(sc->sc_dev, "not responding (get status)\n" ); |
| 353 | goto bail_out; |
| 354 | } |
| 355 | |
| 356 | sc->sc_flags |= IOP_HAVESTATUS; |
| 357 | iop_strvis(sc, sc->sc_status.productid, sizeof(sc->sc_status.productid), |
| 358 | ident, sizeof(ident)); |
| 359 | printf(" <%s>\n" , ident); |
| 360 | |
| 361 | #ifdef I2ODEBUG |
| 362 | printf("%s: orgid=0x%04x version=%d\n" , |
| 363 | device_xname(sc->sc_dev), |
| 364 | le16toh(sc->sc_status.orgid), |
| 365 | (le32toh(sc->sc_status.segnumber) >> 12) & 15); |
| 366 | printf("%s: type want have cbase\n" , device_xname(sc->sc_dev)); |
| 367 | printf("%s: mem %04x %04x %08x\n" , device_xname(sc->sc_dev), |
| 368 | le32toh(sc->sc_status.desiredprivmemsize), |
| 369 | le32toh(sc->sc_status.currentprivmemsize), |
| 370 | le32toh(sc->sc_status.currentprivmembase)); |
| 371 | printf("%s: i/o %04x %04x %08x\n" , device_xname(sc->sc_dev), |
| 372 | le32toh(sc->sc_status.desiredpriviosize), |
| 373 | le32toh(sc->sc_status.currentpriviosize), |
| 374 | le32toh(sc->sc_status.currentpriviobase)); |
| 375 | #endif |
| 376 | |
| 377 | sc->sc_maxob = le32toh(sc->sc_status.maxoutboundmframes); |
| 378 | if (sc->sc_maxob > IOP_MAX_OUTBOUND) |
| 379 | sc->sc_maxob = IOP_MAX_OUTBOUND; |
| 380 | sc->sc_maxib = le32toh(sc->sc_status.maxinboundmframes); |
| 381 | if (sc->sc_maxib > IOP_MAX_INBOUND) |
| 382 | sc->sc_maxib = IOP_MAX_INBOUND; |
| 383 | sc->sc_framesize = le16toh(sc->sc_status.inboundmframesize) << 2; |
| 384 | if (sc->sc_framesize > IOP_MAX_MSG_SIZE) |
| 385 | sc->sc_framesize = IOP_MAX_MSG_SIZE; |
| 386 | |
| 387 | #if defined(I2ODEBUG) || defined(DIAGNOSTIC) |
| 388 | if (sc->sc_framesize < IOP_MIN_MSG_SIZE) { |
| 389 | aprint_error_dev(sc->sc_dev, "frame size too small (%d)\n" , |
| 390 | sc->sc_framesize); |
| 391 | goto bail_out; |
| 392 | } |
| 393 | #endif |
| 394 | |
| 395 | /* Allocate message wrappers. */ |
| 396 | im = malloc(sizeof(*im) * sc->sc_maxib, M_DEVBUF, M_NOWAIT|M_ZERO); |
| 397 | if (im == NULL) { |
| 398 | aprint_error_dev(sc->sc_dev, "memory allocation failure\n" ); |
| 399 | goto bail_out; |
| 400 | } |
| 401 | state++; |
| 402 | sc->sc_ims = im; |
| 403 | SLIST_INIT(&sc->sc_im_freelist); |
| 404 | |
| 405 | for (i = 0; i < sc->sc_maxib; i++, im++) { |
| 406 | rv = bus_dmamap_create(sc->sc_dmat, IOP_MAX_XFER, |
| 407 | IOP_MAX_SEGS, IOP_MAX_XFER, 0, |
| 408 | BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, |
| 409 | &im->im_xfer[0].ix_map); |
| 410 | if (rv != 0) { |
| 411 | aprint_error_dev(sc->sc_dev, "couldn't create dmamap (%d)" , rv); |
| 412 | goto bail_out3; |
| 413 | } |
| 414 | |
| 415 | im->im_tctx = i; |
| 416 | SLIST_INSERT_HEAD(&sc->sc_im_freelist, im, im_chain); |
| 417 | cv_init(&im->im_cv, "iopmsg" ); |
| 418 | } |
| 419 | |
| 420 | /* Initialise the IOP's outbound FIFO. */ |
| 421 | if (iop_ofifo_init(sc) != 0) { |
| 422 | aprint_error_dev(sc->sc_dev, "unable to init oubound FIFO\n" ); |
| 423 | goto bail_out3; |
| 424 | } |
| 425 | |
| 426 | /* |
| 427 | * Defer further configuration until (a) interrupts are working and |
| 428 | * (b) we have enough information to build the system table. |
| 429 | */ |
| 430 | config_interrupts(sc->sc_dev, iop_config_interrupts); |
| 431 | |
| 432 | /* Configure shutdown hook before we start any device activity. */ |
| 433 | if (iop_sdh == NULL) |
| 434 | iop_sdh = shutdownhook_establish(iop_shutdown, NULL); |
| 435 | |
| 436 | /* Ensure interrupts are enabled at the IOP. */ |
| 437 | mask = iop_inl(sc, IOP_REG_INTR_MASK); |
| 438 | iop_outl(sc, IOP_REG_INTR_MASK, mask & ~IOP_INTR_OFIFO); |
| 439 | |
| 440 | if (intrstr != NULL) |
| 441 | printf("%s: interrupting at %s\n" , device_xname(sc->sc_dev), |
| 442 | intrstr); |
| 443 | |
| 444 | #ifdef I2ODEBUG |
| 445 | printf("%s: queue depths: inbound %d/%d, outbound %d/%d\n" , |
| 446 | device_xname(sc->sc_dev), sc->sc_maxib, |
| 447 | le32toh(sc->sc_status.maxinboundmframes), |
| 448 | sc->sc_maxob, le32toh(sc->sc_status.maxoutboundmframes)); |
| 449 | #endif |
| 450 | |
| 451 | return; |
| 452 | |
| 453 | bail_out3: |
| 454 | if (state > 3) { |
| 455 | for (j = 0; j < i; j++) |
| 456 | bus_dmamap_destroy(sc->sc_dmat, |
| 457 | sc->sc_ims[j].im_xfer[0].ix_map); |
| 458 | free(sc->sc_ims, M_DEVBUF); |
| 459 | } |
| 460 | bail_out: |
| 461 | if (state > 2) |
| 462 | bus_dmamap_unload(sc->sc_dmat, sc->sc_scr_dmamap); |
| 463 | if (state > 1) |
| 464 | bus_dmamem_unmap(sc->sc_dmat, sc->sc_scr, PAGE_SIZE); |
| 465 | if (state > 0) |
| 466 | bus_dmamem_free(sc->sc_dmat, sc->sc_scr_seg, nsegs); |
| 467 | bus_dmamap_destroy(sc->sc_dmat, sc->sc_scr_dmamap); |
| 468 | } |
| 469 | |
| 470 | /* |
| 471 | * Perform autoconfiguration tasks. |
| 472 | */ |
| 473 | static void |
| 474 | iop_config_interrupts(device_t self) |
| 475 | { |
| 476 | struct iop_attach_args ia; |
| 477 | struct iop_softc *sc, *iop; |
| 478 | struct i2o_systab_entry *ste; |
| 479 | int rv, i, niop; |
| 480 | int locs[IOPCF_NLOCS]; |
| 481 | |
| 482 | sc = device_private(self); |
| 483 | mutex_enter(&sc->sc_conflock); |
| 484 | |
| 485 | LIST_INIT(&sc->sc_iilist); |
| 486 | |
| 487 | printf("%s: configuring...\n" , device_xname(sc->sc_dev)); |
| 488 | |
| 489 | if (iop_hrt_get(sc) != 0) { |
| 490 | printf("%s: unable to retrieve HRT\n" , device_xname(sc->sc_dev)); |
| 491 | mutex_exit(&sc->sc_conflock); |
| 492 | return; |
| 493 | } |
| 494 | |
| 495 | /* |
| 496 | * Build the system table. |
| 497 | */ |
| 498 | if (iop_systab == NULL) { |
| 499 | for (i = 0, niop = 0; i < iop_cd.cd_ndevs; i++) { |
| 500 | if ((iop = device_lookup_private(&iop_cd, i)) == NULL) |
| 501 | continue; |
| 502 | if ((iop->sc_flags & IOP_HAVESTATUS) == 0) |
| 503 | continue; |
| 504 | if (iop_status_get(iop, 1) != 0) { |
| 505 | aprint_error_dev(sc->sc_dev, "unable to retrieve status\n" ); |
| 506 | iop->sc_flags &= ~IOP_HAVESTATUS; |
| 507 | continue; |
| 508 | } |
| 509 | niop++; |
| 510 | } |
| 511 | if (niop == 0) { |
| 512 | mutex_exit(&sc->sc_conflock); |
| 513 | return; |
| 514 | } |
| 515 | |
| 516 | i = sizeof(struct i2o_systab_entry) * (niop - 1) + |
| 517 | sizeof(struct i2o_systab); |
| 518 | iop_systab_size = i; |
| 519 | iop_systab = malloc(i, M_DEVBUF, M_NOWAIT|M_ZERO); |
| 520 | |
| 521 | iop_systab->numentries = niop; |
| 522 | iop_systab->version = I2O_VERSION_11; |
| 523 | |
| 524 | for (i = 0, ste = iop_systab->entry; i < iop_cd.cd_ndevs; i++) { |
| 525 | if ((iop = device_lookup_private(&iop_cd, i)) == NULL) |
| 526 | continue; |
| 527 | if ((iop->sc_flags & IOP_HAVESTATUS) == 0) |
| 528 | continue; |
| 529 | |
| 530 | ste->orgid = iop->sc_status.orgid; |
| 531 | ste->iopid = device_unit(iop->sc_dev) + 2; |
| 532 | ste->segnumber = |
| 533 | htole32(le32toh(iop->sc_status.segnumber) & ~4095); |
| 534 | ste->iopcaps = iop->sc_status.iopcaps; |
| 535 | ste->inboundmsgframesize = |
| 536 | iop->sc_status.inboundmframesize; |
| 537 | ste->inboundmsgportaddresslow = |
| 538 | htole32(iop->sc_memaddr + IOP_REG_IFIFO); |
| 539 | ste++; |
| 540 | } |
| 541 | } |
| 542 | |
| 543 | /* |
| 544 | * Post the system table to the IOP and bring it to the OPERATIONAL |
| 545 | * state. |
| 546 | */ |
| 547 | if (iop_systab_set(sc) != 0) { |
| 548 | aprint_error_dev(sc->sc_dev, "unable to set system table\n" ); |
| 549 | mutex_exit(&sc->sc_conflock); |
| 550 | return; |
| 551 | } |
| 552 | if (iop_sys_enable(sc) != 0) { |
| 553 | aprint_error_dev(sc->sc_dev, "unable to enable system\n" ); |
| 554 | mutex_exit(&sc->sc_conflock); |
| 555 | return; |
| 556 | } |
| 557 | |
| 558 | /* |
| 559 | * Set up an event handler for this IOP. |
| 560 | */ |
| 561 | sc->sc_eventii.ii_dv = self; |
| 562 | sc->sc_eventii.ii_intr = iop_intr_event; |
| 563 | sc->sc_eventii.ii_flags = II_NOTCTX | II_UTILITY; |
| 564 | sc->sc_eventii.ii_tid = I2O_TID_IOP; |
| 565 | iop_initiator_register(sc, &sc->sc_eventii); |
| 566 | |
| 567 | rv = iop_util_eventreg(sc, &sc->sc_eventii, |
| 568 | I2O_EVENT_EXEC_RESOURCE_LIMITS | |
| 569 | I2O_EVENT_EXEC_CONNECTION_FAIL | |
| 570 | I2O_EVENT_EXEC_ADAPTER_FAULT | |
| 571 | I2O_EVENT_EXEC_POWER_FAIL | |
| 572 | I2O_EVENT_EXEC_RESET_PENDING | |
| 573 | I2O_EVENT_EXEC_RESET_IMMINENT | |
| 574 | I2O_EVENT_EXEC_HARDWARE_FAIL | |
| 575 | I2O_EVENT_EXEC_XCT_CHANGE | |
| 576 | I2O_EVENT_EXEC_DDM_AVAILIBILITY | |
| 577 | I2O_EVENT_GEN_DEVICE_RESET | |
| 578 | I2O_EVENT_GEN_STATE_CHANGE | |
| 579 | I2O_EVENT_GEN_GENERAL_WARNING); |
| 580 | if (rv != 0) { |
| 581 | aprint_error_dev(sc->sc_dev, "unable to register for events" ); |
| 582 | mutex_exit(&sc->sc_conflock); |
| 583 | return; |
| 584 | } |
| 585 | |
| 586 | /* |
| 587 | * Attempt to match and attach a product-specific extension. |
| 588 | */ |
| 589 | ia.ia_class = I2O_CLASS_ANY; |
| 590 | ia.ia_tid = I2O_TID_IOP; |
| 591 | locs[IOPCF_TID] = I2O_TID_IOP; |
| 592 | config_found_sm_loc(self, "iop" , locs, &ia, iop_print, |
| 593 | config_stdsubmatch); |
| 594 | |
| 595 | /* |
| 596 | * Start device configuration. |
| 597 | */ |
| 598 | if ((rv = iop_reconfigure(sc, 0)) == -1) |
| 599 | aprint_error_dev(sc->sc_dev, "configure failed (%d)\n" , rv); |
| 600 | |
| 601 | |
| 602 | sc->sc_flags |= IOP_ONLINE; |
| 603 | rv = kthread_create(PRI_NONE, 0, NULL, iop_reconf_thread, sc, |
| 604 | &sc->sc_reconf_thread, "%s" , device_xname(sc->sc_dev)); |
| 605 | mutex_exit(&sc->sc_conflock); |
| 606 | if (rv != 0) { |
| 607 | aprint_error_dev(sc->sc_dev, "unable to create reconfiguration thread (%d)" , rv); |
| 608 | return; |
| 609 | } |
| 610 | } |
| 611 | |
| 612 | /* |
| 613 | * Reconfiguration thread; listens for LCT change notification, and |
| 614 | * initiates re-configuration if received. |
| 615 | */ |
| 616 | static void |
| 617 | iop_reconf_thread(void *cookie) |
| 618 | { |
| 619 | struct iop_softc *sc; |
| 620 | struct i2o_lct lct; |
| 621 | u_int32_t chgind; |
| 622 | int rv; |
| 623 | |
| 624 | sc = cookie; |
| 625 | chgind = sc->sc_chgind + 1; |
| 626 | |
| 627 | for (;;) { |
| 628 | DPRINTF(("%s: async reconfig: requested 0x%08x\n" , |
| 629 | device_xname(sc->sc_dev), chgind)); |
| 630 | |
| 631 | rv = iop_lct_get0(sc, &lct, sizeof(lct), chgind); |
| 632 | |
| 633 | DPRINTF(("%s: async reconfig: notified (0x%08x, %d)\n" , |
| 634 | device_xname(sc->sc_dev), le32toh(lct.changeindicator), rv)); |
| 635 | |
| 636 | mutex_enter(&sc->sc_conflock); |
| 637 | if (rv == 0) { |
| 638 | iop_reconfigure(sc, le32toh(lct.changeindicator)); |
| 639 | chgind = sc->sc_chgind + 1; |
| 640 | } |
| 641 | (void)cv_timedwait(&sc->sc_confcv, &sc->sc_conflock, hz * 5); |
| 642 | mutex_exit(&sc->sc_conflock); |
| 643 | } |
| 644 | } |
| 645 | |
| 646 | /* |
| 647 | * Reconfigure: find new and removed devices. |
| 648 | */ |
| 649 | int |
| 650 | iop_reconfigure(struct iop_softc *sc, u_int chgind) |
| 651 | { |
| 652 | struct iop_msg *im; |
| 653 | struct i2o_hba_bus_scan mf; |
| 654 | struct i2o_lct_entry *le; |
| 655 | struct iop_initiator *ii, *nextii; |
| 656 | int rv, tid, i; |
| 657 | |
| 658 | KASSERT(mutex_owned(&sc->sc_conflock)); |
| 659 | |
| 660 | /* |
| 661 | * If the reconfiguration request isn't the result of LCT change |
| 662 | * notification, then be more thorough: ask all bus ports to scan |
| 663 | * their busses. Wait up to 5 minutes for each bus port to complete |
| 664 | * the request. |
| 665 | */ |
| 666 | if (chgind == 0) { |
| 667 | if ((rv = iop_lct_get(sc)) != 0) { |
| 668 | DPRINTF(("iop_reconfigure: unable to read LCT\n" )); |
| 669 | return (rv); |
| 670 | } |
| 671 | |
| 672 | le = sc->sc_lct->entry; |
| 673 | for (i = 0; i < sc->sc_nlctent; i++, le++) { |
| 674 | if ((le16toh(le->classid) & 4095) != |
| 675 | I2O_CLASS_BUS_ADAPTER_PORT) |
| 676 | continue; |
| 677 | tid = le16toh(le->localtid) & 4095; |
| 678 | |
| 679 | im = iop_msg_alloc(sc, IM_WAIT); |
| 680 | |
| 681 | mf.msgflags = I2O_MSGFLAGS(i2o_hba_bus_scan); |
| 682 | mf.msgfunc = I2O_MSGFUNC(tid, I2O_HBA_BUS_SCAN); |
| 683 | mf.msgictx = IOP_ICTX; |
| 684 | mf.msgtctx = im->im_tctx; |
| 685 | |
| 686 | DPRINTF(("%s: scanning bus %d\n" , device_xname(sc->sc_dev), |
| 687 | tid)); |
| 688 | |
| 689 | rv = iop_msg_post(sc, im, &mf, 5*60*1000); |
| 690 | iop_msg_free(sc, im); |
| 691 | #ifdef I2ODEBUG |
| 692 | if (rv != 0) |
| 693 | aprint_error_dev(sc->sc_dev, "bus scan failed\n" ); |
| 694 | #endif |
| 695 | } |
| 696 | } else if (chgind <= sc->sc_chgind) { |
| 697 | DPRINTF(("%s: LCT unchanged (async)\n" , device_xname(sc->sc_dev))); |
| 698 | return (0); |
| 699 | } |
| 700 | |
| 701 | /* Re-read the LCT and determine if it has changed. */ |
| 702 | if ((rv = iop_lct_get(sc)) != 0) { |
| 703 | DPRINTF(("iop_reconfigure: unable to re-read LCT\n" )); |
| 704 | return (rv); |
| 705 | } |
| 706 | DPRINTF(("%s: %d LCT entries\n" , device_xname(sc->sc_dev), sc->sc_nlctent)); |
| 707 | |
| 708 | chgind = le32toh(sc->sc_lct->changeindicator); |
| 709 | if (chgind == sc->sc_chgind) { |
| 710 | DPRINTF(("%s: LCT unchanged\n" , device_xname(sc->sc_dev))); |
| 711 | return (0); |
| 712 | } |
| 713 | DPRINTF(("%s: LCT changed\n" , device_xname(sc->sc_dev))); |
| 714 | sc->sc_chgind = chgind; |
| 715 | |
| 716 | if (sc->sc_tidmap != NULL) |
| 717 | free(sc->sc_tidmap, M_DEVBUF); |
| 718 | sc->sc_tidmap = malloc(sc->sc_nlctent * sizeof(struct iop_tidmap), |
| 719 | M_DEVBUF, M_NOWAIT|M_ZERO); |
| 720 | |
| 721 | /* Allow 1 queued command per device while we're configuring. */ |
| 722 | iop_adjqparam(sc, 1); |
| 723 | |
| 724 | /* |
| 725 | * Match and attach child devices. We configure high-level devices |
| 726 | * first so that any claims will propagate throughout the LCT, |
| 727 | * hopefully masking off aliased devices as a result. |
| 728 | * |
| 729 | * Re-reading the LCT at this point is a little dangerous, but we'll |
| 730 | * trust the IOP (and the operator) to behave itself... |
| 731 | */ |
| 732 | iop_configure_devices(sc, IC_CONFIGURE | IC_PRIORITY, |
| 733 | IC_CONFIGURE | IC_PRIORITY); |
| 734 | if ((rv = iop_lct_get(sc)) != 0) { |
| 735 | DPRINTF(("iop_reconfigure: unable to re-read LCT\n" )); |
| 736 | } |
| 737 | iop_configure_devices(sc, IC_CONFIGURE | IC_PRIORITY, |
| 738 | IC_CONFIGURE); |
| 739 | |
| 740 | for (ii = LIST_FIRST(&sc->sc_iilist); ii != NULL; ii = nextii) { |
| 741 | nextii = LIST_NEXT(ii, ii_list); |
| 742 | |
| 743 | /* Detach devices that were configured, but are now gone. */ |
| 744 | for (i = 0; i < sc->sc_nlctent; i++) |
| 745 | if (ii->ii_tid == sc->sc_tidmap[i].it_tid) |
| 746 | break; |
| 747 | if (i == sc->sc_nlctent || |
| 748 | (sc->sc_tidmap[i].it_flags & IT_CONFIGURED) == 0) { |
| 749 | config_detach(ii->ii_dv, DETACH_FORCE); |
| 750 | continue; |
| 751 | } |
| 752 | |
| 753 | /* |
| 754 | * Tell initiators that existed before the re-configuration |
| 755 | * to re-configure. |
| 756 | */ |
| 757 | if (ii->ii_reconfig == NULL) |
| 758 | continue; |
| 759 | if ((rv = (*ii->ii_reconfig)(ii->ii_dv)) != 0) |
| 760 | aprint_error_dev(sc->sc_dev, "%s failed reconfigure (%d)\n" , |
| 761 | device_xname(ii->ii_dv), rv); |
| 762 | } |
| 763 | |
| 764 | /* Re-adjust queue parameters and return. */ |
| 765 | if (sc->sc_nii != 0) |
| 766 | iop_adjqparam(sc, (sc->sc_maxib - sc->sc_nuii - IOP_MF_RESERVE) |
| 767 | / sc->sc_nii); |
| 768 | |
| 769 | return (0); |
| 770 | } |
| 771 | |
| 772 | /* |
| 773 | * Configure I2O devices into the system. |
| 774 | */ |
| 775 | static void |
| 776 | iop_configure_devices(struct iop_softc *sc, int mask, int maskval) |
| 777 | { |
| 778 | struct iop_attach_args ia; |
| 779 | struct iop_initiator *ii; |
| 780 | const struct i2o_lct_entry *le; |
| 781 | device_t dv; |
| 782 | int i, j, nent; |
| 783 | u_int usertid; |
| 784 | int locs[IOPCF_NLOCS]; |
| 785 | |
| 786 | nent = sc->sc_nlctent; |
| 787 | for (i = 0, le = sc->sc_lct->entry; i < nent; i++, le++) { |
| 788 | sc->sc_tidmap[i].it_tid = le16toh(le->localtid) & 4095; |
| 789 | |
| 790 | /* Ignore the device if it's in use. */ |
| 791 | usertid = le32toh(le->usertid) & 4095; |
| 792 | if (usertid != I2O_TID_NONE && usertid != I2O_TID_HOST) |
| 793 | continue; |
| 794 | |
| 795 | ia.ia_class = le16toh(le->classid) & 4095; |
| 796 | ia.ia_tid = sc->sc_tidmap[i].it_tid; |
| 797 | |
| 798 | /* Ignore uninteresting devices. */ |
| 799 | for (j = 0; j < sizeof(iop_class) / sizeof(iop_class[0]); j++) |
| 800 | if (iop_class[j].ic_class == ia.ia_class) |
| 801 | break; |
| 802 | if (j < sizeof(iop_class) / sizeof(iop_class[0]) && |
| 803 | (iop_class[j].ic_flags & mask) != maskval) |
| 804 | continue; |
| 805 | |
| 806 | /* |
| 807 | * Try to configure the device only if it's not already |
| 808 | * configured. |
| 809 | */ |
| 810 | LIST_FOREACH(ii, &sc->sc_iilist, ii_list) { |
| 811 | if (ia.ia_tid == ii->ii_tid) { |
| 812 | sc->sc_tidmap[i].it_flags |= IT_CONFIGURED; |
| 813 | strcpy(sc->sc_tidmap[i].it_dvname, |
| 814 | device_xname(ii->ii_dv)); |
| 815 | break; |
| 816 | } |
| 817 | } |
| 818 | if (ii != NULL) |
| 819 | continue; |
| 820 | |
| 821 | locs[IOPCF_TID] = ia.ia_tid; |
| 822 | |
| 823 | dv = config_found_sm_loc(sc->sc_dev, "iop" , locs, &ia, |
| 824 | iop_print, config_stdsubmatch); |
| 825 | if (dv != NULL) { |
| 826 | sc->sc_tidmap[i].it_flags |= IT_CONFIGURED; |
| 827 | strcpy(sc->sc_tidmap[i].it_dvname, device_xname(dv)); |
| 828 | } |
| 829 | } |
| 830 | } |
| 831 | |
| 832 | /* |
| 833 | * Adjust queue parameters for all child devices. |
| 834 | */ |
| 835 | static void |
| 836 | iop_adjqparam(struct iop_softc *sc, int mpi) |
| 837 | { |
| 838 | struct iop_initiator *ii; |
| 839 | |
| 840 | LIST_FOREACH(ii, &sc->sc_iilist, ii_list) |
| 841 | if (ii->ii_adjqparam != NULL) |
| 842 | (*ii->ii_adjqparam)(ii->ii_dv, mpi); |
| 843 | } |
| 844 | |
| 845 | static void |
| 846 | iop_devinfo(int class, char *devinfo, size_t l) |
| 847 | { |
| 848 | int i; |
| 849 | |
| 850 | for (i = 0; i < sizeof(iop_class) / sizeof(iop_class[0]); i++) |
| 851 | if (class == iop_class[i].ic_class) |
| 852 | break; |
| 853 | |
| 854 | if (i == sizeof(iop_class) / sizeof(iop_class[0])) |
| 855 | snprintf(devinfo, l, "device (class 0x%x)" , class); |
| 856 | else |
| 857 | strlcpy(devinfo, iop_class[i].ic_caption, l); |
| 858 | } |
| 859 | |
| 860 | static int |
| 861 | iop_print(void *aux, const char *pnp) |
| 862 | { |
| 863 | struct iop_attach_args *ia; |
| 864 | char devinfo[256]; |
| 865 | |
| 866 | ia = aux; |
| 867 | |
| 868 | if (pnp != NULL) { |
| 869 | iop_devinfo(ia->ia_class, devinfo, sizeof(devinfo)); |
| 870 | aprint_normal("%s at %s" , devinfo, pnp); |
| 871 | } |
| 872 | aprint_normal(" tid %d" , ia->ia_tid); |
| 873 | return (UNCONF); |
| 874 | } |
| 875 | |
| 876 | /* |
| 877 | * Shut down all configured IOPs. |
| 878 | */ |
| 879 | static void |
| 880 | iop_shutdown(void *junk) |
| 881 | { |
| 882 | struct iop_softc *sc; |
| 883 | int i; |
| 884 | |
| 885 | printf("shutting down iop devices..." ); |
| 886 | |
| 887 | for (i = 0; i < iop_cd.cd_ndevs; i++) { |
| 888 | if ((sc = device_lookup_private(&iop_cd, i)) == NULL) |
| 889 | continue; |
| 890 | if ((sc->sc_flags & IOP_ONLINE) == 0) |
| 891 | continue; |
| 892 | |
| 893 | iop_simple_cmd(sc, I2O_TID_IOP, I2O_EXEC_SYS_QUIESCE, IOP_ICTX, |
| 894 | 0, 5000); |
| 895 | |
| 896 | if (le16toh(sc->sc_status.orgid) != I2O_ORG_AMI) { |
| 897 | /* |
| 898 | * Some AMI firmware revisions will go to sleep and |
| 899 | * never come back after this. |
| 900 | */ |
| 901 | iop_simple_cmd(sc, I2O_TID_IOP, I2O_EXEC_IOP_CLEAR, |
| 902 | IOP_ICTX, 0, 1000); |
| 903 | } |
| 904 | } |
| 905 | |
| 906 | /* Wait. Some boards could still be flushing, stupidly enough. */ |
| 907 | delay(5000*1000); |
| 908 | printf(" done\n" ); |
| 909 | } |
| 910 | |
| 911 | /* |
| 912 | * Retrieve IOP status. |
| 913 | */ |
| 914 | int |
| 915 | iop_status_get(struct iop_softc *sc, int nosleep) |
| 916 | { |
| 917 | struct i2o_exec_status_get mf; |
| 918 | struct i2o_status *st; |
| 919 | paddr_t pa; |
| 920 | int rv, i; |
| 921 | |
| 922 | pa = sc->sc_scr_dmamap->dm_segs[0].ds_addr; |
| 923 | st = (struct i2o_status *)sc->sc_scr; |
| 924 | |
| 925 | mf.msgflags = I2O_MSGFLAGS(i2o_exec_status_get); |
| 926 | mf.msgfunc = I2O_MSGFUNC(I2O_TID_IOP, I2O_EXEC_STATUS_GET); |
| 927 | mf.reserved[0] = 0; |
| 928 | mf.reserved[1] = 0; |
| 929 | mf.reserved[2] = 0; |
| 930 | mf.reserved[3] = 0; |
| 931 | mf.addrlow = (u_int32_t)pa; |
| 932 | mf.addrhigh = (u_int32_t)((u_int64_t)pa >> 32); |
| 933 | mf.length = sizeof(sc->sc_status); |
| 934 | |
| 935 | bus_dmamap_sync(sc->sc_dmat, sc->sc_scr_dmamap, 0, sizeof(*st), |
| 936 | BUS_DMASYNC_PREWRITE); |
| 937 | memset(st, 0, sizeof(*st)); |
| 938 | bus_dmamap_sync(sc->sc_dmat, sc->sc_scr_dmamap, 0, sizeof(*st), |
| 939 | BUS_DMASYNC_POSTWRITE); |
| 940 | |
| 941 | if ((rv = iop_post(sc, (u_int32_t *)&mf)) != 0) |
| 942 | return (rv); |
| 943 | |
| 944 | for (i = 100; i != 0; i--) { |
| 945 | bus_dmamap_sync(sc->sc_dmat, sc->sc_scr_dmamap, 0, |
| 946 | sizeof(*st), BUS_DMASYNC_POSTREAD); |
| 947 | if (st->syncbyte == 0xff) |
| 948 | break; |
| 949 | if (nosleep) |
| 950 | DELAY(100*1000); |
| 951 | else |
| 952 | kpause("iopstat" , false, hz / 10, NULL); |
| 953 | } |
| 954 | |
| 955 | if (st->syncbyte != 0xff) { |
| 956 | aprint_error_dev(sc->sc_dev, "STATUS_GET timed out\n" ); |
| 957 | rv = EIO; |
| 958 | } else { |
| 959 | memcpy(&sc->sc_status, st, sizeof(sc->sc_status)); |
| 960 | rv = 0; |
| 961 | } |
| 962 | |
| 963 | return (rv); |
| 964 | } |
| 965 | |
| 966 | /* |
| 967 | * Initialize and populate the IOP's outbound FIFO. |
| 968 | */ |
| 969 | static int |
| 970 | iop_ofifo_init(struct iop_softc *sc) |
| 971 | { |
| 972 | bus_addr_t addr; |
| 973 | bus_dma_segment_t seg; |
| 974 | struct i2o_exec_outbound_init *mf; |
| 975 | int i, rseg, rv; |
| 976 | u_int32_t mb[IOP_MAX_MSG_SIZE / sizeof(u_int32_t)], *sw; |
| 977 | |
| 978 | sw = (u_int32_t *)sc->sc_scr; |
| 979 | |
| 980 | mf = (struct i2o_exec_outbound_init *)mb; |
| 981 | mf->msgflags = I2O_MSGFLAGS(i2o_exec_outbound_init); |
| 982 | mf->msgfunc = I2O_MSGFUNC(I2O_TID_IOP, I2O_EXEC_OUTBOUND_INIT); |
| 983 | mf->msgictx = IOP_ICTX; |
| 984 | mf->msgtctx = 0; |
| 985 | mf->pagesize = PAGE_SIZE; |
| 986 | mf->flags = IOP_INIT_CODE | ((sc->sc_framesize >> 2) << 16); |
| 987 | |
| 988 | /* |
| 989 | * The I2O spec says that there are two SGLs: one for the status |
| 990 | * word, and one for a list of discarded MFAs. It continues to say |
| 991 | * that if you don't want to get the list of MFAs, an IGNORE SGL is |
| 992 | * necessary; this isn't the case (and is in fact a bad thing). |
| 993 | */ |
| 994 | mb[sizeof(*mf) / sizeof(u_int32_t) + 0] = sizeof(*sw) | |
| 995 | I2O_SGL_SIMPLE | I2O_SGL_END_BUFFER | I2O_SGL_END; |
| 996 | mb[sizeof(*mf) / sizeof(u_int32_t) + 1] = |
| 997 | (u_int32_t)sc->sc_scr_dmamap->dm_segs[0].ds_addr; |
| 998 | mb[0] += 2 << 16; |
| 999 | |
| 1000 | bus_dmamap_sync(sc->sc_dmat, sc->sc_scr_dmamap, 0, sizeof(*sw), |
| 1001 | BUS_DMASYNC_POSTWRITE); |
| 1002 | *sw = 0; |
| 1003 | bus_dmamap_sync(sc->sc_dmat, sc->sc_scr_dmamap, 0, sizeof(*sw), |
| 1004 | BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); |
| 1005 | |
| 1006 | if ((rv = iop_post(sc, mb)) != 0) |
| 1007 | return (rv); |
| 1008 | |
| 1009 | POLL(5000, |
| 1010 | (bus_dmamap_sync(sc->sc_dmat, sc->sc_scr_dmamap, 0, sizeof(*sw), |
| 1011 | BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD), |
| 1012 | *sw == htole32(I2O_EXEC_OUTBOUND_INIT_COMPLETE))); |
| 1013 | |
| 1014 | if (*sw != htole32(I2O_EXEC_OUTBOUND_INIT_COMPLETE)) { |
| 1015 | aprint_error_dev(sc->sc_dev, "outbound FIFO init failed (%d)\n" , |
| 1016 | le32toh(*sw)); |
| 1017 | return (EIO); |
| 1018 | } |
| 1019 | |
| 1020 | /* Allocate DMA safe memory for the reply frames. */ |
| 1021 | if (sc->sc_rep_phys == 0) { |
| 1022 | sc->sc_rep_size = sc->sc_maxob * sc->sc_framesize; |
| 1023 | |
| 1024 | rv = bus_dmamem_alloc(sc->sc_dmat, sc->sc_rep_size, PAGE_SIZE, |
| 1025 | 0, &seg, 1, &rseg, BUS_DMA_NOWAIT); |
| 1026 | if (rv != 0) { |
| 1027 | aprint_error_dev(sc->sc_dev, "DMA alloc = %d\n" , |
| 1028 | rv); |
| 1029 | return (rv); |
| 1030 | } |
| 1031 | |
| 1032 | rv = bus_dmamem_map(sc->sc_dmat, &seg, rseg, sc->sc_rep_size, |
| 1033 | &sc->sc_rep, BUS_DMA_NOWAIT | BUS_DMA_COHERENT); |
| 1034 | if (rv != 0) { |
| 1035 | aprint_error_dev(sc->sc_dev, "DMA map = %d\n" , rv); |
| 1036 | return (rv); |
| 1037 | } |
| 1038 | |
| 1039 | rv = bus_dmamap_create(sc->sc_dmat, sc->sc_rep_size, 1, |
| 1040 | sc->sc_rep_size, 0, BUS_DMA_NOWAIT, &sc->sc_rep_dmamap); |
| 1041 | if (rv != 0) { |
| 1042 | aprint_error_dev(sc->sc_dev, "DMA create = %d\n" , rv); |
| 1043 | return (rv); |
| 1044 | } |
| 1045 | |
| 1046 | rv = bus_dmamap_load(sc->sc_dmat, sc->sc_rep_dmamap, |
| 1047 | sc->sc_rep, sc->sc_rep_size, NULL, BUS_DMA_NOWAIT); |
| 1048 | if (rv != 0) { |
| 1049 | aprint_error_dev(sc->sc_dev, "DMA load = %d\n" , rv); |
| 1050 | return (rv); |
| 1051 | } |
| 1052 | |
| 1053 | sc->sc_rep_phys = sc->sc_rep_dmamap->dm_segs[0].ds_addr; |
| 1054 | |
| 1055 | /* Now safe to sync the reply map. */ |
| 1056 | sc->sc_curib = 0; |
| 1057 | } |
| 1058 | |
| 1059 | /* Populate the outbound FIFO. */ |
| 1060 | for (i = sc->sc_maxob, addr = sc->sc_rep_phys; i != 0; i--) { |
| 1061 | iop_outl(sc, IOP_REG_OFIFO, (u_int32_t)addr); |
| 1062 | addr += sc->sc_framesize; |
| 1063 | } |
| 1064 | |
| 1065 | return (0); |
| 1066 | } |
| 1067 | |
| 1068 | /* |
| 1069 | * Read the specified number of bytes from the IOP's hardware resource table. |
| 1070 | */ |
| 1071 | static int |
| 1072 | iop_hrt_get0(struct iop_softc *sc, struct i2o_hrt *hrt, int size) |
| 1073 | { |
| 1074 | struct iop_msg *im; |
| 1075 | int rv; |
| 1076 | struct i2o_exec_hrt_get *mf; |
| 1077 | u_int32_t mb[IOP_MAX_MSG_SIZE / sizeof(u_int32_t)]; |
| 1078 | |
| 1079 | im = iop_msg_alloc(sc, IM_WAIT); |
| 1080 | mf = (struct i2o_exec_hrt_get *)mb; |
| 1081 | mf->msgflags = I2O_MSGFLAGS(i2o_exec_hrt_get); |
| 1082 | mf->msgfunc = I2O_MSGFUNC(I2O_TID_IOP, I2O_EXEC_HRT_GET); |
| 1083 | mf->msgictx = IOP_ICTX; |
| 1084 | mf->msgtctx = im->im_tctx; |
| 1085 | |
| 1086 | iop_msg_map(sc, im, mb, hrt, size, 0, NULL); |
| 1087 | rv = iop_msg_post(sc, im, mb, 30000); |
| 1088 | iop_msg_unmap(sc, im); |
| 1089 | iop_msg_free(sc, im); |
| 1090 | return (rv); |
| 1091 | } |
| 1092 | |
| 1093 | /* |
| 1094 | * Read the IOP's hardware resource table. |
| 1095 | */ |
| 1096 | static int |
| 1097 | iop_hrt_get(struct iop_softc *sc) |
| 1098 | { |
| 1099 | struct i2o_hrt hrthdr, *hrt; |
| 1100 | int size, rv; |
| 1101 | |
| 1102 | rv = iop_hrt_get0(sc, &hrthdr, sizeof(hrthdr)); |
| 1103 | if (rv != 0) |
| 1104 | return (rv); |
| 1105 | |
| 1106 | DPRINTF(("%s: %d hrt entries\n" , device_xname(sc->sc_dev), |
| 1107 | le16toh(hrthdr.numentries))); |
| 1108 | |
| 1109 | size = sizeof(struct i2o_hrt) + |
| 1110 | (le16toh(hrthdr.numentries) - 1) * sizeof(struct i2o_hrt_entry); |
| 1111 | hrt = (struct i2o_hrt *)malloc(size, M_DEVBUF, M_NOWAIT); |
| 1112 | |
| 1113 | if ((rv = iop_hrt_get0(sc, hrt, size)) != 0) { |
| 1114 | free(hrt, M_DEVBUF); |
| 1115 | return (rv); |
| 1116 | } |
| 1117 | |
| 1118 | if (sc->sc_hrt != NULL) |
| 1119 | free(sc->sc_hrt, M_DEVBUF); |
| 1120 | sc->sc_hrt = hrt; |
| 1121 | return (0); |
| 1122 | } |
| 1123 | |
| 1124 | /* |
| 1125 | * Request the specified number of bytes from the IOP's logical |
| 1126 | * configuration table. If a change indicator is specified, this |
| 1127 | * is a verbatim notification request, so the caller is prepared |
| 1128 | * to wait indefinitely. |
| 1129 | */ |
| 1130 | static int |
| 1131 | iop_lct_get0(struct iop_softc *sc, struct i2o_lct *lct, int size, |
| 1132 | u_int32_t chgind) |
| 1133 | { |
| 1134 | struct iop_msg *im; |
| 1135 | struct i2o_exec_lct_notify *mf; |
| 1136 | int rv; |
| 1137 | u_int32_t mb[IOP_MAX_MSG_SIZE / sizeof(u_int32_t)]; |
| 1138 | |
| 1139 | im = iop_msg_alloc(sc, IM_WAIT); |
| 1140 | memset(lct, 0, size); |
| 1141 | |
| 1142 | mf = (struct i2o_exec_lct_notify *)mb; |
| 1143 | mf->msgflags = I2O_MSGFLAGS(i2o_exec_lct_notify); |
| 1144 | mf->msgfunc = I2O_MSGFUNC(I2O_TID_IOP, I2O_EXEC_LCT_NOTIFY); |
| 1145 | mf->msgictx = IOP_ICTX; |
| 1146 | mf->msgtctx = im->im_tctx; |
| 1147 | mf->classid = I2O_CLASS_ANY; |
| 1148 | mf->changeindicator = chgind; |
| 1149 | |
| 1150 | #ifdef I2ODEBUG |
| 1151 | printf("iop_lct_get0: reading LCT" ); |
| 1152 | if (chgind != 0) |
| 1153 | printf(" (async)" ); |
| 1154 | printf("\n" ); |
| 1155 | #endif |
| 1156 | |
| 1157 | iop_msg_map(sc, im, mb, lct, size, 0, NULL); |
| 1158 | rv = iop_msg_post(sc, im, mb, (chgind == 0 ? 120*1000 : 0)); |
| 1159 | iop_msg_unmap(sc, im); |
| 1160 | iop_msg_free(sc, im); |
| 1161 | return (rv); |
| 1162 | } |
| 1163 | |
| 1164 | /* |
| 1165 | * Read the IOP's logical configuration table. |
| 1166 | */ |
| 1167 | int |
| 1168 | iop_lct_get(struct iop_softc *sc) |
| 1169 | { |
| 1170 | int esize, size, rv; |
| 1171 | struct i2o_lct *lct; |
| 1172 | |
| 1173 | esize = le32toh(sc->sc_status.expectedlctsize); |
| 1174 | lct = (struct i2o_lct *)malloc(esize, M_DEVBUF, M_WAITOK); |
| 1175 | if (lct == NULL) |
| 1176 | return (ENOMEM); |
| 1177 | |
| 1178 | if ((rv = iop_lct_get0(sc, lct, esize, 0)) != 0) { |
| 1179 | free(lct, M_DEVBUF); |
| 1180 | return (rv); |
| 1181 | } |
| 1182 | |
| 1183 | size = le16toh(lct->tablesize) << 2; |
| 1184 | if (esize != size) { |
| 1185 | free(lct, M_DEVBUF); |
| 1186 | lct = (struct i2o_lct *)malloc(size, M_DEVBUF, M_WAITOK); |
| 1187 | if (lct == NULL) |
| 1188 | return (ENOMEM); |
| 1189 | |
| 1190 | if ((rv = iop_lct_get0(sc, lct, size, 0)) != 0) { |
| 1191 | free(lct, M_DEVBUF); |
| 1192 | return (rv); |
| 1193 | } |
| 1194 | } |
| 1195 | |
| 1196 | /* Swap in the new LCT. */ |
| 1197 | if (sc->sc_lct != NULL) |
| 1198 | free(sc->sc_lct, M_DEVBUF); |
| 1199 | sc->sc_lct = lct; |
| 1200 | sc->sc_nlctent = ((le16toh(sc->sc_lct->tablesize) << 2) - |
| 1201 | sizeof(struct i2o_lct) + sizeof(struct i2o_lct_entry)) / |
| 1202 | sizeof(struct i2o_lct_entry); |
| 1203 | return (0); |
| 1204 | } |
| 1205 | |
| 1206 | /* |
| 1207 | * Post a SYS_ENABLE message to the adapter. |
| 1208 | */ |
| 1209 | int |
| 1210 | iop_sys_enable(struct iop_softc *sc) |
| 1211 | { |
| 1212 | struct iop_msg *im; |
| 1213 | struct i2o_msg mf; |
| 1214 | int rv; |
| 1215 | |
| 1216 | im = iop_msg_alloc(sc, IM_WAIT | IM_NOSTATUS); |
| 1217 | |
| 1218 | mf.msgflags = I2O_MSGFLAGS(i2o_msg); |
| 1219 | mf.msgfunc = I2O_MSGFUNC(I2O_TID_IOP, I2O_EXEC_SYS_ENABLE); |
| 1220 | mf.msgictx = IOP_ICTX; |
| 1221 | mf.msgtctx = im->im_tctx; |
| 1222 | |
| 1223 | rv = iop_msg_post(sc, im, &mf, 30000); |
| 1224 | if (rv == 0) { |
| 1225 | if ((im->im_flags & IM_FAIL) != 0) |
| 1226 | rv = ENXIO; |
| 1227 | else if (im->im_reqstatus == I2O_STATUS_SUCCESS || |
| 1228 | (im->im_reqstatus == I2O_STATUS_ERROR_NO_DATA_XFER && |
| 1229 | im->im_detstatus == I2O_DSC_INVALID_REQUEST)) |
| 1230 | rv = 0; |
| 1231 | else |
| 1232 | rv = EIO; |
| 1233 | } |
| 1234 | |
| 1235 | iop_msg_free(sc, im); |
| 1236 | return (rv); |
| 1237 | } |
| 1238 | |
| 1239 | /* |
| 1240 | * Request the specified parameter group from the target. If an initiator |
| 1241 | * is specified (a) don't wait for the operation to complete, but instead |
| 1242 | * let the initiator's interrupt handler deal with the reply and (b) place a |
| 1243 | * pointer to the parameter group op in the wrapper's `im_dvcontext' field. |
| 1244 | */ |
| 1245 | int |
| 1246 | iop_field_get_all(struct iop_softc *sc, int tid, int group, void *buf, |
| 1247 | int size, struct iop_initiator *ii) |
| 1248 | { |
| 1249 | struct iop_msg *im; |
| 1250 | struct i2o_util_params_op *mf; |
| 1251 | int rv; |
| 1252 | struct iop_pgop *pgop; |
| 1253 | u_int32_t mb[IOP_MAX_MSG_SIZE / sizeof(u_int32_t)]; |
| 1254 | |
| 1255 | im = iop_msg_alloc(sc, (ii == NULL ? IM_WAIT : 0) | IM_NOSTATUS); |
| 1256 | if ((pgop = malloc(sizeof(*pgop), M_DEVBUF, M_WAITOK)) == NULL) { |
| 1257 | iop_msg_free(sc, im); |
| 1258 | return (ENOMEM); |
| 1259 | } |
| 1260 | im->im_dvcontext = pgop; |
| 1261 | |
| 1262 | mf = (struct i2o_util_params_op *)mb; |
| 1263 | mf->msgflags = I2O_MSGFLAGS(i2o_util_params_op); |
| 1264 | mf->msgfunc = I2O_MSGFUNC(tid, I2O_UTIL_PARAMS_GET); |
| 1265 | mf->msgictx = IOP_ICTX; |
| 1266 | mf->msgtctx = im->im_tctx; |
| 1267 | mf->flags = 0; |
| 1268 | |
| 1269 | pgop->olh.count = htole16(1); |
| 1270 | pgop->olh.reserved = htole16(0); |
| 1271 | pgop->oat.operation = htole16(I2O_PARAMS_OP_FIELD_GET); |
| 1272 | pgop->oat.fieldcount = htole16(0xffff); |
| 1273 | pgop->oat.group = htole16(group); |
| 1274 | |
| 1275 | memset(buf, 0, size); |
| 1276 | iop_msg_map(sc, im, mb, pgop, sizeof(*pgop), 1, NULL); |
| 1277 | iop_msg_map(sc, im, mb, buf, size, 0, NULL); |
| 1278 | rv = iop_msg_post(sc, im, mb, (ii == NULL ? 30000 : 0)); |
| 1279 | |
| 1280 | /* Detect errors; let partial transfers to count as success. */ |
| 1281 | if (ii == NULL && rv == 0) { |
| 1282 | if (im->im_reqstatus == I2O_STATUS_ERROR_PARTIAL_XFER && |
| 1283 | im->im_detstatus == I2O_DSC_UNKNOWN_ERROR) |
| 1284 | rv = 0; |
| 1285 | else |
| 1286 | rv = (im->im_reqstatus != 0 ? EIO : 0); |
| 1287 | |
| 1288 | if (rv != 0) |
| 1289 | printf("%s: FIELD_GET failed for tid %d group %d\n" , |
| 1290 | device_xname(sc->sc_dev), tid, group); |
| 1291 | } |
| 1292 | |
| 1293 | if (ii == NULL || rv != 0) { |
| 1294 | iop_msg_unmap(sc, im); |
| 1295 | iop_msg_free(sc, im); |
| 1296 | free(pgop, M_DEVBUF); |
| 1297 | } |
| 1298 | |
| 1299 | return (rv); |
| 1300 | } |
| 1301 | |
| 1302 | /* |
| 1303 | * Set a single field in a scalar parameter group. |
| 1304 | */ |
| 1305 | int |
| 1306 | iop_field_set(struct iop_softc *sc, int tid, int group, void *buf, |
| 1307 | int size, int field) |
| 1308 | { |
| 1309 | struct iop_msg *im; |
| 1310 | struct i2o_util_params_op *mf; |
| 1311 | struct iop_pgop *pgop; |
| 1312 | int rv, totsize; |
| 1313 | u_int32_t mb[IOP_MAX_MSG_SIZE / sizeof(u_int32_t)]; |
| 1314 | |
| 1315 | totsize = sizeof(*pgop) + size; |
| 1316 | |
| 1317 | im = iop_msg_alloc(sc, IM_WAIT); |
| 1318 | if ((pgop = malloc(totsize, M_DEVBUF, M_WAITOK)) == NULL) { |
| 1319 | iop_msg_free(sc, im); |
| 1320 | return (ENOMEM); |
| 1321 | } |
| 1322 | |
| 1323 | mf = (struct i2o_util_params_op *)mb; |
| 1324 | mf->msgflags = I2O_MSGFLAGS(i2o_util_params_op); |
| 1325 | mf->msgfunc = I2O_MSGFUNC(tid, I2O_UTIL_PARAMS_SET); |
| 1326 | mf->msgictx = IOP_ICTX; |
| 1327 | mf->msgtctx = im->im_tctx; |
| 1328 | mf->flags = 0; |
| 1329 | |
| 1330 | pgop->olh.count = htole16(1); |
| 1331 | pgop->olh.reserved = htole16(0); |
| 1332 | pgop->oat.operation = htole16(I2O_PARAMS_OP_FIELD_SET); |
| 1333 | pgop->oat.fieldcount = htole16(1); |
| 1334 | pgop->oat.group = htole16(group); |
| 1335 | pgop->oat.fields[0] = htole16(field); |
| 1336 | memcpy(pgop + 1, buf, size); |
| 1337 | |
| 1338 | iop_msg_map(sc, im, mb, pgop, totsize, 1, NULL); |
| 1339 | rv = iop_msg_post(sc, im, mb, 30000); |
| 1340 | if (rv != 0) |
| 1341 | aprint_error_dev(sc->sc_dev, "FIELD_SET failed for tid %d group %d\n" , |
| 1342 | tid, group); |
| 1343 | |
| 1344 | iop_msg_unmap(sc, im); |
| 1345 | iop_msg_free(sc, im); |
| 1346 | free(pgop, M_DEVBUF); |
| 1347 | return (rv); |
| 1348 | } |
| 1349 | |
| 1350 | /* |
| 1351 | * Delete all rows in a tablular parameter group. |
| 1352 | */ |
| 1353 | int |
| 1354 | iop_table_clear(struct iop_softc *sc, int tid, int group) |
| 1355 | { |
| 1356 | struct iop_msg *im; |
| 1357 | struct i2o_util_params_op *mf; |
| 1358 | struct iop_pgop pgop; |
| 1359 | u_int32_t mb[IOP_MAX_MSG_SIZE / sizeof(u_int32_t)]; |
| 1360 | int rv; |
| 1361 | |
| 1362 | im = iop_msg_alloc(sc, IM_WAIT); |
| 1363 | |
| 1364 | mf = (struct i2o_util_params_op *)mb; |
| 1365 | mf->msgflags = I2O_MSGFLAGS(i2o_util_params_op); |
| 1366 | mf->msgfunc = I2O_MSGFUNC(tid, I2O_UTIL_PARAMS_SET); |
| 1367 | mf->msgictx = IOP_ICTX; |
| 1368 | mf->msgtctx = im->im_tctx; |
| 1369 | mf->flags = 0; |
| 1370 | |
| 1371 | pgop.olh.count = htole16(1); |
| 1372 | pgop.olh.reserved = htole16(0); |
| 1373 | pgop.oat.operation = htole16(I2O_PARAMS_OP_TABLE_CLEAR); |
| 1374 | pgop.oat.fieldcount = htole16(0); |
| 1375 | pgop.oat.group = htole16(group); |
| 1376 | pgop.oat.fields[0] = htole16(0); |
| 1377 | |
| 1378 | iop_msg_map(sc, im, mb, &pgop, sizeof(pgop), 1, NULL); |
| 1379 | rv = iop_msg_post(sc, im, mb, 30000); |
| 1380 | if (rv != 0) |
| 1381 | aprint_error_dev(sc->sc_dev, "TABLE_CLEAR failed for tid %d group %d\n" , |
| 1382 | tid, group); |
| 1383 | |
| 1384 | iop_msg_unmap(sc, im); |
| 1385 | iop_msg_free(sc, im); |
| 1386 | return (rv); |
| 1387 | } |
| 1388 | |
| 1389 | /* |
| 1390 | * Add a single row to a tabular parameter group. The row can have only one |
| 1391 | * field. |
| 1392 | */ |
| 1393 | int |
| 1394 | iop_table_add_row(struct iop_softc *sc, int tid, int group, void *buf, |
| 1395 | int size, int row) |
| 1396 | { |
| 1397 | struct iop_msg *im; |
| 1398 | struct i2o_util_params_op *mf; |
| 1399 | struct iop_pgop *pgop; |
| 1400 | int rv, totsize; |
| 1401 | u_int32_t mb[IOP_MAX_MSG_SIZE / sizeof(u_int32_t)]; |
| 1402 | |
| 1403 | totsize = sizeof(*pgop) + sizeof(u_int16_t) * 2 + size; |
| 1404 | |
| 1405 | im = iop_msg_alloc(sc, IM_WAIT); |
| 1406 | if ((pgop = malloc(totsize, M_DEVBUF, M_WAITOK)) == NULL) { |
| 1407 | iop_msg_free(sc, im); |
| 1408 | return (ENOMEM); |
| 1409 | } |
| 1410 | |
| 1411 | mf = (struct i2o_util_params_op *)mb; |
| 1412 | mf->msgflags = I2O_MSGFLAGS(i2o_util_params_op); |
| 1413 | mf->msgfunc = I2O_MSGFUNC(tid, I2O_UTIL_PARAMS_SET); |
| 1414 | mf->msgictx = IOP_ICTX; |
| 1415 | mf->msgtctx = im->im_tctx; |
| 1416 | mf->flags = 0; |
| 1417 | |
| 1418 | pgop->olh.count = htole16(1); |
| 1419 | pgop->olh.reserved = htole16(0); |
| 1420 | pgop->oat.operation = htole16(I2O_PARAMS_OP_ROW_ADD); |
| 1421 | pgop->oat.fieldcount = htole16(1); |
| 1422 | pgop->oat.group = htole16(group); |
| 1423 | pgop->oat.fields[0] = htole16(0); /* FieldIdx */ |
| 1424 | pgop->oat.fields[1] = htole16(1); /* RowCount */ |
| 1425 | pgop->oat.fields[2] = htole16(row); /* KeyValue */ |
| 1426 | memcpy(&pgop->oat.fields[3], buf, size); |
| 1427 | |
| 1428 | iop_msg_map(sc, im, mb, pgop, totsize, 1, NULL); |
| 1429 | rv = iop_msg_post(sc, im, mb, 30000); |
| 1430 | if (rv != 0) |
| 1431 | aprint_error_dev(sc->sc_dev, "ADD_ROW failed for tid %d group %d row %d\n" , |
| 1432 | tid, group, row); |
| 1433 | |
| 1434 | iop_msg_unmap(sc, im); |
| 1435 | iop_msg_free(sc, im); |
| 1436 | free(pgop, M_DEVBUF); |
| 1437 | return (rv); |
| 1438 | } |
| 1439 | |
| 1440 | /* |
| 1441 | * Execute a simple command (no parameters). |
| 1442 | */ |
| 1443 | int |
| 1444 | iop_simple_cmd(struct iop_softc *sc, int tid, int function, int ictx, |
| 1445 | int async, int timo) |
| 1446 | { |
| 1447 | struct iop_msg *im; |
| 1448 | struct i2o_msg mf; |
| 1449 | int rv, fl; |
| 1450 | |
| 1451 | fl = (async != 0 ? IM_WAIT : IM_POLL); |
| 1452 | im = iop_msg_alloc(sc, fl); |
| 1453 | |
| 1454 | mf.msgflags = I2O_MSGFLAGS(i2o_msg); |
| 1455 | mf.msgfunc = I2O_MSGFUNC(tid, function); |
| 1456 | mf.msgictx = ictx; |
| 1457 | mf.msgtctx = im->im_tctx; |
| 1458 | |
| 1459 | rv = iop_msg_post(sc, im, &mf, timo); |
| 1460 | iop_msg_free(sc, im); |
| 1461 | return (rv); |
| 1462 | } |
| 1463 | |
| 1464 | /* |
| 1465 | * Post the system table to the IOP. |
| 1466 | */ |
| 1467 | static int |
| 1468 | iop_systab_set(struct iop_softc *sc) |
| 1469 | { |
| 1470 | struct i2o_exec_sys_tab_set *mf; |
| 1471 | struct iop_msg *im; |
| 1472 | bus_space_handle_t bsh; |
| 1473 | bus_addr_t boo; |
| 1474 | u_int32_t mema[2], ioa[2]; |
| 1475 | int rv; |
| 1476 | u_int32_t mb[IOP_MAX_MSG_SIZE / sizeof(u_int32_t)]; |
| 1477 | |
| 1478 | im = iop_msg_alloc(sc, IM_WAIT); |
| 1479 | |
| 1480 | mf = (struct i2o_exec_sys_tab_set *)mb; |
| 1481 | mf->msgflags = I2O_MSGFLAGS(i2o_exec_sys_tab_set); |
| 1482 | mf->msgfunc = I2O_MSGFUNC(I2O_TID_IOP, I2O_EXEC_SYS_TAB_SET); |
| 1483 | mf->msgictx = IOP_ICTX; |
| 1484 | mf->msgtctx = im->im_tctx; |
| 1485 | mf->iopid = (device_unit(sc->sc_dev) + 2) << 12; |
| 1486 | mf->segnumber = 0; |
| 1487 | |
| 1488 | mema[1] = sc->sc_status.desiredprivmemsize; |
| 1489 | ioa[1] = sc->sc_status.desiredpriviosize; |
| 1490 | |
| 1491 | if (mema[1] != 0) { |
| 1492 | rv = bus_space_alloc(sc->sc_bus_memt, 0, 0xffffffff, |
| 1493 | le32toh(mema[1]), PAGE_SIZE, 0, 0, &boo, &bsh); |
| 1494 | mema[0] = htole32(boo); |
| 1495 | if (rv != 0) { |
| 1496 | aprint_error_dev(sc->sc_dev, "can't alloc priv mem space, err = %d\n" , rv); |
| 1497 | mema[0] = 0; |
| 1498 | mema[1] = 0; |
| 1499 | } |
| 1500 | } |
| 1501 | |
| 1502 | if (ioa[1] != 0) { |
| 1503 | rv = bus_space_alloc(sc->sc_bus_iot, 0, 0xffff, |
| 1504 | le32toh(ioa[1]), 0, 0, 0, &boo, &bsh); |
| 1505 | ioa[0] = htole32(boo); |
| 1506 | if (rv != 0) { |
| 1507 | aprint_error_dev(sc->sc_dev, "can't alloc priv i/o space, err = %d\n" , rv); |
| 1508 | ioa[0] = 0; |
| 1509 | ioa[1] = 0; |
| 1510 | } |
| 1511 | } |
| 1512 | |
| 1513 | iop_msg_map(sc, im, mb, iop_systab, iop_systab_size, 1, NULL); |
| 1514 | iop_msg_map(sc, im, mb, mema, sizeof(mema), 1, NULL); |
| 1515 | iop_msg_map(sc, im, mb, ioa, sizeof(ioa), 1, NULL); |
| 1516 | rv = iop_msg_post(sc, im, mb, 5000); |
| 1517 | iop_msg_unmap(sc, im); |
| 1518 | iop_msg_free(sc, im); |
| 1519 | return (rv); |
| 1520 | } |
| 1521 | |
| 1522 | /* |
| 1523 | * Reset the IOP. Must be called with interrupts disabled. |
| 1524 | */ |
| 1525 | static int |
| 1526 | iop_reset(struct iop_softc *sc) |
| 1527 | { |
| 1528 | u_int32_t mfa, *sw; |
| 1529 | struct i2o_exec_iop_reset mf; |
| 1530 | int rv; |
| 1531 | paddr_t pa; |
| 1532 | |
| 1533 | sw = (u_int32_t *)sc->sc_scr; |
| 1534 | pa = sc->sc_scr_dmamap->dm_segs[0].ds_addr; |
| 1535 | |
| 1536 | mf.msgflags = I2O_MSGFLAGS(i2o_exec_iop_reset); |
| 1537 | mf.msgfunc = I2O_MSGFUNC(I2O_TID_IOP, I2O_EXEC_IOP_RESET); |
| 1538 | mf.reserved[0] = 0; |
| 1539 | mf.reserved[1] = 0; |
| 1540 | mf.reserved[2] = 0; |
| 1541 | mf.reserved[3] = 0; |
| 1542 | mf.statuslow = (u_int32_t)pa; |
| 1543 | mf.statushigh = (u_int32_t)((u_int64_t)pa >> 32); |
| 1544 | |
| 1545 | bus_dmamap_sync(sc->sc_dmat, sc->sc_scr_dmamap, 0, sizeof(*sw), |
| 1546 | BUS_DMASYNC_POSTWRITE); |
| 1547 | *sw = htole32(0); |
| 1548 | bus_dmamap_sync(sc->sc_dmat, sc->sc_scr_dmamap, 0, sizeof(*sw), |
| 1549 | BUS_DMASYNC_PREWRITE|BUS_DMASYNC_PREREAD); |
| 1550 | |
| 1551 | if ((rv = iop_post(sc, (u_int32_t *)&mf))) |
| 1552 | return (rv); |
| 1553 | |
| 1554 | POLL(2500, |
| 1555 | (bus_dmamap_sync(sc->sc_dmat, sc->sc_scr_dmamap, 0, sizeof(*sw), |
| 1556 | BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD), *sw != 0)); |
| 1557 | if (*sw != htole32(I2O_RESET_IN_PROGRESS)) { |
| 1558 | aprint_error_dev(sc->sc_dev, "reset rejected, status 0x%x\n" , |
| 1559 | le32toh(*sw)); |
| 1560 | return (EIO); |
| 1561 | } |
| 1562 | |
| 1563 | /* |
| 1564 | * IOP is now in the INIT state. Wait no more than 10 seconds for |
| 1565 | * the inbound queue to become responsive. |
| 1566 | */ |
| 1567 | POLL(10000, (mfa = iop_inl(sc, IOP_REG_IFIFO)) != IOP_MFA_EMPTY); |
| 1568 | if (mfa == IOP_MFA_EMPTY) { |
| 1569 | aprint_error_dev(sc->sc_dev, "reset failed\n" ); |
| 1570 | return (EIO); |
| 1571 | } |
| 1572 | |
| 1573 | iop_release_mfa(sc, mfa); |
| 1574 | return (0); |
| 1575 | } |
| 1576 | |
| 1577 | /* |
| 1578 | * Register a new initiator. Must be called with the configuration lock |
| 1579 | * held. |
| 1580 | */ |
| 1581 | void |
| 1582 | iop_initiator_register(struct iop_softc *sc, struct iop_initiator *ii) |
| 1583 | { |
| 1584 | static int ictxgen; |
| 1585 | |
| 1586 | /* 0 is reserved (by us) for system messages. */ |
| 1587 | ii->ii_ictx = ++ictxgen; |
| 1588 | |
| 1589 | /* |
| 1590 | * `Utility initiators' don't make it onto the per-IOP initiator list |
| 1591 | * (which is used only for configuration), but do get one slot on |
| 1592 | * the inbound queue. |
| 1593 | */ |
| 1594 | if ((ii->ii_flags & II_UTILITY) == 0) { |
| 1595 | LIST_INSERT_HEAD(&sc->sc_iilist, ii, ii_list); |
| 1596 | sc->sc_nii++; |
| 1597 | } else |
| 1598 | sc->sc_nuii++; |
| 1599 | |
| 1600 | cv_init(&ii->ii_cv, "iopevt" ); |
| 1601 | |
| 1602 | mutex_spin_enter(&sc->sc_intrlock); |
| 1603 | LIST_INSERT_HEAD(IOP_ICTXHASH(ii->ii_ictx), ii, ii_hash); |
| 1604 | mutex_spin_exit(&sc->sc_intrlock); |
| 1605 | } |
| 1606 | |
| 1607 | /* |
| 1608 | * Unregister an initiator. Must be called with the configuration lock |
| 1609 | * held. |
| 1610 | */ |
| 1611 | void |
| 1612 | iop_initiator_unregister(struct iop_softc *sc, struct iop_initiator *ii) |
| 1613 | { |
| 1614 | |
| 1615 | if ((ii->ii_flags & II_UTILITY) == 0) { |
| 1616 | LIST_REMOVE(ii, ii_list); |
| 1617 | sc->sc_nii--; |
| 1618 | } else |
| 1619 | sc->sc_nuii--; |
| 1620 | |
| 1621 | mutex_spin_enter(&sc->sc_intrlock); |
| 1622 | LIST_REMOVE(ii, ii_hash); |
| 1623 | mutex_spin_exit(&sc->sc_intrlock); |
| 1624 | |
| 1625 | cv_destroy(&ii->ii_cv); |
| 1626 | } |
| 1627 | |
| 1628 | /* |
| 1629 | * Handle a reply frame from the IOP. |
| 1630 | */ |
| 1631 | static int |
| 1632 | iop_handle_reply(struct iop_softc *sc, u_int32_t rmfa) |
| 1633 | { |
| 1634 | struct iop_msg *im; |
| 1635 | struct i2o_reply *rb; |
| 1636 | struct i2o_fault_notify *fn; |
| 1637 | struct iop_initiator *ii; |
| 1638 | u_int off, ictx, tctx, status, size; |
| 1639 | |
| 1640 | KASSERT(mutex_owned(&sc->sc_intrlock)); |
| 1641 | |
| 1642 | off = (int)(rmfa - sc->sc_rep_phys); |
| 1643 | rb = (struct i2o_reply *)((char *)sc->sc_rep + off); |
| 1644 | |
| 1645 | /* Perform reply queue DMA synchronisation. */ |
| 1646 | bus_dmamap_sync(sc->sc_dmat, sc->sc_rep_dmamap, off, |
| 1647 | sc->sc_framesize, BUS_DMASYNC_POSTREAD); |
| 1648 | |
| 1649 | #ifdef I2ODEBUG |
| 1650 | if ((le32toh(rb->msgflags) & I2O_MSGFLAGS_64BIT) != 0) |
| 1651 | panic("iop_handle_reply: 64-bit reply" ); |
| 1652 | #endif |
| 1653 | /* |
| 1654 | * Find the initiator. |
| 1655 | */ |
| 1656 | ictx = le32toh(rb->msgictx); |
| 1657 | if (ictx == IOP_ICTX) |
| 1658 | ii = NULL; |
| 1659 | else { |
| 1660 | ii = LIST_FIRST(IOP_ICTXHASH(ictx)); |
| 1661 | for (; ii != NULL; ii = LIST_NEXT(ii, ii_hash)) |
| 1662 | if (ii->ii_ictx == ictx) |
| 1663 | break; |
| 1664 | if (ii == NULL) { |
| 1665 | #ifdef I2ODEBUG |
| 1666 | iop_reply_print(sc, rb); |
| 1667 | #endif |
| 1668 | aprint_error_dev(sc->sc_dev, "WARNING: bad ictx returned (%x)\n" , |
| 1669 | ictx); |
| 1670 | return (-1); |
| 1671 | } |
| 1672 | } |
| 1673 | |
| 1674 | /* |
| 1675 | * If we received a transport failure notice, we've got to dig the |
| 1676 | * transaction context (if any) out of the original message frame, |
| 1677 | * and then release the original MFA back to the inbound FIFO. |
| 1678 | */ |
| 1679 | if ((rb->msgflags & I2O_MSGFLAGS_FAIL) != 0) { |
| 1680 | status = I2O_STATUS_SUCCESS; |
| 1681 | |
| 1682 | fn = (struct i2o_fault_notify *)rb; |
| 1683 | tctx = iop_inl_msg(sc, fn->lowmfa + 12); |
| 1684 | iop_release_mfa(sc, fn->lowmfa); |
| 1685 | iop_tfn_print(sc, fn); |
| 1686 | } else { |
| 1687 | status = rb->reqstatus; |
| 1688 | tctx = le32toh(rb->msgtctx); |
| 1689 | } |
| 1690 | |
| 1691 | if (ii == NULL || (ii->ii_flags & II_NOTCTX) == 0) { |
| 1692 | /* |
| 1693 | * This initiator tracks state using message wrappers. |
| 1694 | * |
| 1695 | * Find the originating message wrapper, and if requested |
| 1696 | * notify the initiator. |
| 1697 | */ |
| 1698 | im = sc->sc_ims + (tctx & IOP_TCTX_MASK); |
| 1699 | if ((tctx & IOP_TCTX_MASK) > sc->sc_maxib || |
| 1700 | (im->im_flags & IM_ALLOCED) == 0 || |
| 1701 | tctx != im->im_tctx) { |
| 1702 | aprint_error_dev(sc->sc_dev, "WARNING: bad tctx returned (0x%08x, %p)\n" , tctx, im); |
| 1703 | if (im != NULL) |
| 1704 | aprint_error_dev(sc->sc_dev, "flags=0x%08x tctx=0x%08x\n" , |
| 1705 | im->im_flags, im->im_tctx); |
| 1706 | #ifdef I2ODEBUG |
| 1707 | if ((rb->msgflags & I2O_MSGFLAGS_FAIL) == 0) |
| 1708 | iop_reply_print(sc, rb); |
| 1709 | #endif |
| 1710 | return (-1); |
| 1711 | } |
| 1712 | |
| 1713 | if ((rb->msgflags & I2O_MSGFLAGS_FAIL) != 0) |
| 1714 | im->im_flags |= IM_FAIL; |
| 1715 | |
| 1716 | #ifdef I2ODEBUG |
| 1717 | if ((im->im_flags & IM_REPLIED) != 0) |
| 1718 | panic("%s: dup reply" , device_xname(sc->sc_dev)); |
| 1719 | #endif |
| 1720 | im->im_flags |= IM_REPLIED; |
| 1721 | |
| 1722 | #ifdef I2ODEBUG |
| 1723 | if (status != I2O_STATUS_SUCCESS) |
| 1724 | iop_reply_print(sc, rb); |
| 1725 | #endif |
| 1726 | im->im_reqstatus = status; |
| 1727 | im->im_detstatus = le16toh(rb->detail); |
| 1728 | |
| 1729 | /* Copy the reply frame, if requested. */ |
| 1730 | if (im->im_rb != NULL) { |
| 1731 | size = (le32toh(rb->msgflags) >> 14) & ~3; |
| 1732 | #ifdef I2ODEBUG |
| 1733 | if (size > sc->sc_framesize) |
| 1734 | panic("iop_handle_reply: reply too large" ); |
| 1735 | #endif |
| 1736 | memcpy(im->im_rb, rb, size); |
| 1737 | } |
| 1738 | |
| 1739 | /* Notify the initiator. */ |
| 1740 | if ((im->im_flags & IM_WAIT) != 0) |
| 1741 | cv_broadcast(&im->im_cv); |
| 1742 | else if ((im->im_flags & (IM_POLL | IM_POLL_INTR)) != IM_POLL) { |
| 1743 | if (ii != NULL) { |
| 1744 | mutex_spin_exit(&sc->sc_intrlock); |
| 1745 | (*ii->ii_intr)(ii->ii_dv, im, rb); |
| 1746 | mutex_spin_enter(&sc->sc_intrlock); |
| 1747 | } |
| 1748 | } |
| 1749 | } else { |
| 1750 | /* |
| 1751 | * This initiator discards message wrappers. |
| 1752 | * |
| 1753 | * Simply pass the reply frame to the initiator. |
| 1754 | */ |
| 1755 | if (ii != NULL) { |
| 1756 | mutex_spin_exit(&sc->sc_intrlock); |
| 1757 | (*ii->ii_intr)(ii->ii_dv, NULL, rb); |
| 1758 | mutex_spin_enter(&sc->sc_intrlock); |
| 1759 | } |
| 1760 | } |
| 1761 | |
| 1762 | return (status); |
| 1763 | } |
| 1764 | |
| 1765 | /* |
| 1766 | * Handle an interrupt from the IOP. |
| 1767 | */ |
| 1768 | int |
| 1769 | iop_intr(void *arg) |
| 1770 | { |
| 1771 | struct iop_softc *sc; |
| 1772 | u_int32_t rmfa; |
| 1773 | |
| 1774 | sc = arg; |
| 1775 | |
| 1776 | mutex_spin_enter(&sc->sc_intrlock); |
| 1777 | |
| 1778 | if ((iop_inl(sc, IOP_REG_INTR_STATUS) & IOP_INTR_OFIFO) == 0) { |
| 1779 | mutex_spin_exit(&sc->sc_intrlock); |
| 1780 | return (0); |
| 1781 | } |
| 1782 | |
| 1783 | for (;;) { |
| 1784 | /* Double read to account for IOP bug. */ |
| 1785 | if ((rmfa = iop_inl(sc, IOP_REG_OFIFO)) == IOP_MFA_EMPTY) { |
| 1786 | rmfa = iop_inl(sc, IOP_REG_OFIFO); |
| 1787 | if (rmfa == IOP_MFA_EMPTY) |
| 1788 | break; |
| 1789 | } |
| 1790 | iop_handle_reply(sc, rmfa); |
| 1791 | iop_outl(sc, IOP_REG_OFIFO, rmfa); |
| 1792 | } |
| 1793 | |
| 1794 | mutex_spin_exit(&sc->sc_intrlock); |
| 1795 | return (1); |
| 1796 | } |
| 1797 | |
| 1798 | /* |
| 1799 | * Handle an event signalled by the executive. |
| 1800 | */ |
| 1801 | static void |
| 1802 | iop_intr_event(device_t dv, struct iop_msg *im, void *reply) |
| 1803 | { |
| 1804 | struct i2o_util_event_register_reply *rb; |
| 1805 | u_int event; |
| 1806 | |
| 1807 | rb = reply; |
| 1808 | |
| 1809 | if ((rb->msgflags & I2O_MSGFLAGS_FAIL) != 0) |
| 1810 | return; |
| 1811 | |
| 1812 | event = le32toh(rb->event); |
| 1813 | printf("%s: event 0x%08x received\n" , device_xname(dv), event); |
| 1814 | } |
| 1815 | |
| 1816 | /* |
| 1817 | * Allocate a message wrapper. |
| 1818 | */ |
| 1819 | struct iop_msg * |
| 1820 | iop_msg_alloc(struct iop_softc *sc, int flags) |
| 1821 | { |
| 1822 | struct iop_msg *im; |
| 1823 | static u_int tctxgen; |
| 1824 | int i; |
| 1825 | |
| 1826 | #ifdef I2ODEBUG |
| 1827 | if ((flags & IM_SYSMASK) != 0) |
| 1828 | panic("iop_msg_alloc: system flags specified" ); |
| 1829 | #endif |
| 1830 | |
| 1831 | mutex_spin_enter(&sc->sc_intrlock); |
| 1832 | im = SLIST_FIRST(&sc->sc_im_freelist); |
| 1833 | #if defined(DIAGNOSTIC) || defined(I2ODEBUG) |
| 1834 | if (im == NULL) |
| 1835 | panic("iop_msg_alloc: no free wrappers" ); |
| 1836 | #endif |
| 1837 | SLIST_REMOVE_HEAD(&sc->sc_im_freelist, im_chain); |
| 1838 | mutex_spin_exit(&sc->sc_intrlock); |
| 1839 | |
| 1840 | im->im_tctx = (im->im_tctx & IOP_TCTX_MASK) | tctxgen; |
| 1841 | tctxgen += (1 << IOP_TCTX_SHIFT); |
| 1842 | im->im_flags = flags | IM_ALLOCED; |
| 1843 | im->im_rb = NULL; |
| 1844 | i = 0; |
| 1845 | do { |
| 1846 | im->im_xfer[i++].ix_size = 0; |
| 1847 | } while (i < IOP_MAX_MSG_XFERS); |
| 1848 | |
| 1849 | return (im); |
| 1850 | } |
| 1851 | |
| 1852 | /* |
| 1853 | * Free a message wrapper. |
| 1854 | */ |
| 1855 | void |
| 1856 | iop_msg_free(struct iop_softc *sc, struct iop_msg *im) |
| 1857 | { |
| 1858 | |
| 1859 | #ifdef I2ODEBUG |
| 1860 | if ((im->im_flags & IM_ALLOCED) == 0) |
| 1861 | panic("iop_msg_free: wrapper not allocated" ); |
| 1862 | #endif |
| 1863 | |
| 1864 | im->im_flags = 0; |
| 1865 | mutex_spin_enter(&sc->sc_intrlock); |
| 1866 | SLIST_INSERT_HEAD(&sc->sc_im_freelist, im, im_chain); |
| 1867 | mutex_spin_exit(&sc->sc_intrlock); |
| 1868 | } |
| 1869 | |
| 1870 | /* |
| 1871 | * Map a data transfer. Write a scatter-gather list into the message frame. |
| 1872 | */ |
| 1873 | int |
| 1874 | iop_msg_map(struct iop_softc *sc, struct iop_msg *im, u_int32_t *mb, |
| 1875 | void *xferaddr, int xfersize, int out, struct proc *up) |
| 1876 | { |
| 1877 | bus_dmamap_t dm; |
| 1878 | bus_dma_segment_t *ds; |
| 1879 | struct iop_xfer *ix; |
| 1880 | u_int rv, i, nsegs, flg, off, xn; |
| 1881 | u_int32_t *p; |
| 1882 | |
| 1883 | for (xn = 0, ix = im->im_xfer; xn < IOP_MAX_MSG_XFERS; xn++, ix++) |
| 1884 | if (ix->ix_size == 0) |
| 1885 | break; |
| 1886 | |
| 1887 | #ifdef I2ODEBUG |
| 1888 | if (xfersize == 0) |
| 1889 | panic("iop_msg_map: null transfer" ); |
| 1890 | if (xfersize > IOP_MAX_XFER) |
| 1891 | panic("iop_msg_map: transfer too large" ); |
| 1892 | if (xn == IOP_MAX_MSG_XFERS) |
| 1893 | panic("iop_msg_map: too many xfers" ); |
| 1894 | #endif |
| 1895 | |
| 1896 | /* |
| 1897 | * Only the first DMA map is static. |
| 1898 | */ |
| 1899 | if (xn != 0) { |
| 1900 | rv = bus_dmamap_create(sc->sc_dmat, IOP_MAX_XFER, |
| 1901 | IOP_MAX_SEGS, IOP_MAX_XFER, 0, |
| 1902 | BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, &ix->ix_map); |
| 1903 | if (rv != 0) |
| 1904 | return (rv); |
| 1905 | } |
| 1906 | |
| 1907 | dm = ix->ix_map; |
| 1908 | rv = bus_dmamap_load(sc->sc_dmat, dm, xferaddr, xfersize, up, |
| 1909 | (up == NULL ? BUS_DMA_NOWAIT : 0)); |
| 1910 | if (rv != 0) |
| 1911 | goto bad; |
| 1912 | |
| 1913 | /* |
| 1914 | * How many SIMPLE SG elements can we fit in this message? |
| 1915 | */ |
| 1916 | off = mb[0] >> 16; |
| 1917 | p = mb + off; |
| 1918 | nsegs = ((sc->sc_framesize >> 2) - off) >> 1; |
| 1919 | |
| 1920 | if (dm->dm_nsegs > nsegs) { |
| 1921 | bus_dmamap_unload(sc->sc_dmat, ix->ix_map); |
| 1922 | rv = EFBIG; |
| 1923 | DPRINTF(("iop_msg_map: too many segs\n" )); |
| 1924 | goto bad; |
| 1925 | } |
| 1926 | |
| 1927 | nsegs = dm->dm_nsegs; |
| 1928 | xfersize = 0; |
| 1929 | |
| 1930 | /* |
| 1931 | * Write out the SG list. |
| 1932 | */ |
| 1933 | if (out) |
| 1934 | flg = I2O_SGL_SIMPLE | I2O_SGL_DATA_OUT; |
| 1935 | else |
| 1936 | flg = I2O_SGL_SIMPLE; |
| 1937 | |
| 1938 | for (i = nsegs, ds = dm->dm_segs; i > 1; i--, p += 2, ds++) { |
| 1939 | p[0] = (u_int32_t)ds->ds_len | flg; |
| 1940 | p[1] = (u_int32_t)ds->ds_addr; |
| 1941 | xfersize += ds->ds_len; |
| 1942 | } |
| 1943 | |
| 1944 | p[0] = (u_int32_t)ds->ds_len | flg | I2O_SGL_END_BUFFER; |
| 1945 | p[1] = (u_int32_t)ds->ds_addr; |
| 1946 | xfersize += ds->ds_len; |
| 1947 | |
| 1948 | /* Fix up the transfer record, and sync the map. */ |
| 1949 | ix->ix_flags = (out ? IX_OUT : IX_IN); |
| 1950 | ix->ix_size = xfersize; |
| 1951 | bus_dmamap_sync(sc->sc_dmat, ix->ix_map, 0, xfersize, |
| 1952 | out ? BUS_DMASYNC_PREWRITE : BUS_DMASYNC_PREREAD); |
| 1953 | |
| 1954 | /* |
| 1955 | * If this is the first xfer we've mapped for this message, adjust |
| 1956 | * the SGL offset field in the message header. |
| 1957 | */ |
| 1958 | if ((im->im_flags & IM_SGLOFFADJ) == 0) { |
| 1959 | mb[0] += (mb[0] >> 12) & 0xf0; |
| 1960 | im->im_flags |= IM_SGLOFFADJ; |
| 1961 | } |
| 1962 | mb[0] += (nsegs << 17); |
| 1963 | return (0); |
| 1964 | |
| 1965 | bad: |
| 1966 | if (xn != 0) |
| 1967 | bus_dmamap_destroy(sc->sc_dmat, ix->ix_map); |
| 1968 | return (rv); |
| 1969 | } |
| 1970 | |
| 1971 | /* |
| 1972 | * Map a block I/O data transfer (different in that there's only one per |
| 1973 | * message maximum, and PAGE addressing may be used). Write a scatter |
| 1974 | * gather list into the message frame. |
| 1975 | */ |
| 1976 | int |
| 1977 | iop_msg_map_bio(struct iop_softc *sc, struct iop_msg *im, u_int32_t *mb, |
| 1978 | void *xferaddr, int xfersize, int out) |
| 1979 | { |
| 1980 | bus_dma_segment_t *ds; |
| 1981 | bus_dmamap_t dm; |
| 1982 | struct iop_xfer *ix; |
| 1983 | u_int rv, i, nsegs, off, slen, tlen, flg; |
| 1984 | paddr_t saddr, eaddr; |
| 1985 | u_int32_t *p; |
| 1986 | |
| 1987 | #ifdef I2ODEBUG |
| 1988 | if (xfersize == 0) |
| 1989 | panic("iop_msg_map_bio: null transfer" ); |
| 1990 | if (xfersize > IOP_MAX_XFER) |
| 1991 | panic("iop_msg_map_bio: transfer too large" ); |
| 1992 | if ((im->im_flags & IM_SGLOFFADJ) != 0) |
| 1993 | panic("iop_msg_map_bio: SGLOFFADJ" ); |
| 1994 | #endif |
| 1995 | |
| 1996 | ix = im->im_xfer; |
| 1997 | dm = ix->ix_map; |
| 1998 | rv = bus_dmamap_load(sc->sc_dmat, dm, xferaddr, xfersize, NULL, |
| 1999 | BUS_DMA_NOWAIT | BUS_DMA_STREAMING); |
| 2000 | if (rv != 0) |
| 2001 | return (rv); |
| 2002 | |
| 2003 | off = mb[0] >> 16; |
| 2004 | nsegs = ((sc->sc_framesize >> 2) - off) >> 1; |
| 2005 | |
| 2006 | /* |
| 2007 | * If the transfer is highly fragmented and won't fit using SIMPLE |
| 2008 | * elements, use PAGE_LIST elements instead. SIMPLE elements are |
| 2009 | * potentially more efficient, both for us and the IOP. |
| 2010 | */ |
| 2011 | if (dm->dm_nsegs > nsegs) { |
| 2012 | nsegs = 1; |
| 2013 | p = mb + off + 1; |
| 2014 | |
| 2015 | /* XXX This should be done with a bus_space flag. */ |
| 2016 | for (i = dm->dm_nsegs, ds = dm->dm_segs; i > 0; i--, ds++) { |
| 2017 | slen = ds->ds_len; |
| 2018 | saddr = ds->ds_addr; |
| 2019 | |
| 2020 | while (slen > 0) { |
| 2021 | eaddr = (saddr + PAGE_SIZE) & ~(PAGE_SIZE - 1); |
| 2022 | tlen = min(eaddr - saddr, slen); |
| 2023 | slen -= tlen; |
| 2024 | *p++ = le32toh(saddr); |
| 2025 | saddr = eaddr; |
| 2026 | nsegs++; |
| 2027 | } |
| 2028 | } |
| 2029 | |
| 2030 | mb[off] = xfersize | I2O_SGL_PAGE_LIST | I2O_SGL_END_BUFFER | |
| 2031 | I2O_SGL_END; |
| 2032 | if (out) |
| 2033 | mb[off] |= I2O_SGL_DATA_OUT; |
| 2034 | } else { |
| 2035 | p = mb + off; |
| 2036 | nsegs = dm->dm_nsegs; |
| 2037 | |
| 2038 | if (out) |
| 2039 | flg = I2O_SGL_SIMPLE | I2O_SGL_DATA_OUT; |
| 2040 | else |
| 2041 | flg = I2O_SGL_SIMPLE; |
| 2042 | |
| 2043 | for (i = nsegs, ds = dm->dm_segs; i > 1; i--, p += 2, ds++) { |
| 2044 | p[0] = (u_int32_t)ds->ds_len | flg; |
| 2045 | p[1] = (u_int32_t)ds->ds_addr; |
| 2046 | } |
| 2047 | |
| 2048 | p[0] = (u_int32_t)ds->ds_len | flg | I2O_SGL_END_BUFFER | |
| 2049 | I2O_SGL_END; |
| 2050 | p[1] = (u_int32_t)ds->ds_addr; |
| 2051 | nsegs <<= 1; |
| 2052 | } |
| 2053 | |
| 2054 | /* Fix up the transfer record, and sync the map. */ |
| 2055 | ix->ix_flags = (out ? IX_OUT : IX_IN); |
| 2056 | ix->ix_size = xfersize; |
| 2057 | bus_dmamap_sync(sc->sc_dmat, ix->ix_map, 0, xfersize, |
| 2058 | out ? BUS_DMASYNC_PREWRITE : BUS_DMASYNC_PREREAD); |
| 2059 | |
| 2060 | /* |
| 2061 | * Adjust the SGL offset and total message size fields. We don't |
| 2062 | * set IM_SGLOFFADJ, since it's used only for SIMPLE elements. |
| 2063 | */ |
| 2064 | mb[0] += ((off << 4) + (nsegs << 16)); |
| 2065 | return (0); |
| 2066 | } |
| 2067 | |
| 2068 | /* |
| 2069 | * Unmap all data transfers associated with a message wrapper. |
| 2070 | */ |
| 2071 | void |
| 2072 | iop_msg_unmap(struct iop_softc *sc, struct iop_msg *im) |
| 2073 | { |
| 2074 | struct iop_xfer *ix; |
| 2075 | int i; |
| 2076 | |
| 2077 | #ifdef I2ODEBUG |
| 2078 | if (im->im_xfer[0].ix_size == 0) |
| 2079 | panic("iop_msg_unmap: no transfers mapped" ); |
| 2080 | #endif |
| 2081 | |
| 2082 | for (ix = im->im_xfer, i = 0;;) { |
| 2083 | bus_dmamap_sync(sc->sc_dmat, ix->ix_map, 0, ix->ix_size, |
| 2084 | ix->ix_flags & IX_OUT ? BUS_DMASYNC_POSTWRITE : |
| 2085 | BUS_DMASYNC_POSTREAD); |
| 2086 | bus_dmamap_unload(sc->sc_dmat, ix->ix_map); |
| 2087 | |
| 2088 | /* Only the first DMA map is static. */ |
| 2089 | if (i != 0) |
| 2090 | bus_dmamap_destroy(sc->sc_dmat, ix->ix_map); |
| 2091 | if (++i >= IOP_MAX_MSG_XFERS) |
| 2092 | break; |
| 2093 | if ((++ix)->ix_size == 0) |
| 2094 | break; |
| 2095 | } |
| 2096 | } |
| 2097 | |
| 2098 | /* |
| 2099 | * Post a message frame to the IOP's inbound queue. |
| 2100 | */ |
| 2101 | int |
| 2102 | iop_post(struct iop_softc *sc, u_int32_t *mb) |
| 2103 | { |
| 2104 | u_int32_t mfa; |
| 2105 | |
| 2106 | #ifdef I2ODEBUG |
| 2107 | if ((mb[0] >> 16) > (sc->sc_framesize >> 2)) |
| 2108 | panic("iop_post: frame too large" ); |
| 2109 | #endif |
| 2110 | |
| 2111 | mutex_spin_enter(&sc->sc_intrlock); |
| 2112 | |
| 2113 | /* Allocate a slot with the IOP. */ |
| 2114 | if ((mfa = iop_inl(sc, IOP_REG_IFIFO)) == IOP_MFA_EMPTY) |
| 2115 | if ((mfa = iop_inl(sc, IOP_REG_IFIFO)) == IOP_MFA_EMPTY) { |
| 2116 | mutex_spin_exit(&sc->sc_intrlock); |
| 2117 | aprint_error_dev(sc->sc_dev, "mfa not forthcoming\n" ); |
| 2118 | return (EAGAIN); |
| 2119 | } |
| 2120 | |
| 2121 | /* Perform reply buffer DMA synchronisation. */ |
| 2122 | if (sc->sc_rep_size != 0) { |
| 2123 | bus_dmamap_sync(sc->sc_dmat, sc->sc_rep_dmamap, 0, |
| 2124 | sc->sc_rep_size, BUS_DMASYNC_PREREAD); |
| 2125 | } |
| 2126 | |
| 2127 | /* Copy out the message frame. */ |
| 2128 | bus_space_write_region_4(sc->sc_msg_iot, sc->sc_msg_ioh, mfa, mb, |
| 2129 | mb[0] >> 16); |
| 2130 | bus_space_barrier(sc->sc_msg_iot, sc->sc_msg_ioh, mfa, |
| 2131 | (mb[0] >> 14) & ~3, BUS_SPACE_BARRIER_WRITE); |
| 2132 | |
| 2133 | /* Post the MFA back to the IOP. */ |
| 2134 | iop_outl(sc, IOP_REG_IFIFO, mfa); |
| 2135 | |
| 2136 | mutex_spin_exit(&sc->sc_intrlock); |
| 2137 | return (0); |
| 2138 | } |
| 2139 | |
| 2140 | /* |
| 2141 | * Post a message to the IOP and deal with completion. |
| 2142 | */ |
| 2143 | int |
| 2144 | iop_msg_post(struct iop_softc *sc, struct iop_msg *im, void *xmb, int timo) |
| 2145 | { |
| 2146 | u_int32_t *mb; |
| 2147 | int rv; |
| 2148 | |
| 2149 | mb = xmb; |
| 2150 | |
| 2151 | /* Terminate the scatter/gather list chain. */ |
| 2152 | if ((im->im_flags & IM_SGLOFFADJ) != 0) |
| 2153 | mb[(mb[0] >> 16) - 2] |= I2O_SGL_END; |
| 2154 | |
| 2155 | if ((rv = iop_post(sc, mb)) != 0) |
| 2156 | return (rv); |
| 2157 | |
| 2158 | if ((im->im_flags & (IM_POLL | IM_WAIT)) != 0) { |
| 2159 | if ((im->im_flags & IM_POLL) != 0) |
| 2160 | iop_msg_poll(sc, im, timo); |
| 2161 | else |
| 2162 | iop_msg_wait(sc, im, timo); |
| 2163 | |
| 2164 | mutex_spin_enter(&sc->sc_intrlock); |
| 2165 | if ((im->im_flags & IM_REPLIED) != 0) { |
| 2166 | if ((im->im_flags & IM_NOSTATUS) != 0) |
| 2167 | rv = 0; |
| 2168 | else if ((im->im_flags & IM_FAIL) != 0) |
| 2169 | rv = ENXIO; |
| 2170 | else if (im->im_reqstatus != I2O_STATUS_SUCCESS) |
| 2171 | rv = EIO; |
| 2172 | else |
| 2173 | rv = 0; |
| 2174 | } else |
| 2175 | rv = EBUSY; |
| 2176 | mutex_spin_exit(&sc->sc_intrlock); |
| 2177 | } else |
| 2178 | rv = 0; |
| 2179 | |
| 2180 | return (rv); |
| 2181 | } |
| 2182 | |
| 2183 | /* |
| 2184 | * Spin until the specified message is replied to. |
| 2185 | */ |
| 2186 | static void |
| 2187 | iop_msg_poll(struct iop_softc *sc, struct iop_msg *im, int timo) |
| 2188 | { |
| 2189 | u_int32_t rmfa; |
| 2190 | |
| 2191 | mutex_spin_enter(&sc->sc_intrlock); |
| 2192 | |
| 2193 | for (timo *= 10; timo != 0; timo--) { |
| 2194 | if ((iop_inl(sc, IOP_REG_INTR_STATUS) & IOP_INTR_OFIFO) != 0) { |
| 2195 | /* Double read to account for IOP bug. */ |
| 2196 | rmfa = iop_inl(sc, IOP_REG_OFIFO); |
| 2197 | if (rmfa == IOP_MFA_EMPTY) |
| 2198 | rmfa = iop_inl(sc, IOP_REG_OFIFO); |
| 2199 | if (rmfa != IOP_MFA_EMPTY) { |
| 2200 | iop_handle_reply(sc, rmfa); |
| 2201 | |
| 2202 | /* |
| 2203 | * Return the reply frame to the IOP's |
| 2204 | * outbound FIFO. |
| 2205 | */ |
| 2206 | iop_outl(sc, IOP_REG_OFIFO, rmfa); |
| 2207 | } |
| 2208 | } |
| 2209 | if ((im->im_flags & IM_REPLIED) != 0) |
| 2210 | break; |
| 2211 | mutex_spin_exit(&sc->sc_intrlock); |
| 2212 | DELAY(100); |
| 2213 | mutex_spin_enter(&sc->sc_intrlock); |
| 2214 | } |
| 2215 | |
| 2216 | if (timo == 0) { |
| 2217 | #ifdef I2ODEBUG |
| 2218 | printf("%s: poll - no reply\n" , device_xname(sc->sc_dev)); |
| 2219 | if (iop_status_get(sc, 1) != 0) |
| 2220 | printf("iop_msg_poll: unable to retrieve status\n" ); |
| 2221 | else |
| 2222 | printf("iop_msg_poll: IOP state = %d\n" , |
| 2223 | (le32toh(sc->sc_status.segnumber) >> 16) & 0xff); |
| 2224 | #endif |
| 2225 | } |
| 2226 | |
| 2227 | mutex_spin_exit(&sc->sc_intrlock); |
| 2228 | } |
| 2229 | |
| 2230 | /* |
| 2231 | * Sleep until the specified message is replied to. |
| 2232 | */ |
| 2233 | static void |
| 2234 | iop_msg_wait(struct iop_softc *sc, struct iop_msg *im, int timo) |
| 2235 | { |
| 2236 | int rv; |
| 2237 | |
| 2238 | mutex_spin_enter(&sc->sc_intrlock); |
| 2239 | if ((im->im_flags & IM_REPLIED) != 0) { |
| 2240 | mutex_spin_exit(&sc->sc_intrlock); |
| 2241 | return; |
| 2242 | } |
| 2243 | rv = cv_timedwait(&im->im_cv, &sc->sc_intrlock, mstohz(timo)); |
| 2244 | mutex_spin_exit(&sc->sc_intrlock); |
| 2245 | |
| 2246 | #ifdef I2ODEBUG |
| 2247 | if (rv != 0) { |
| 2248 | printf("iop_msg_wait: tsleep() == %d\n" , rv); |
| 2249 | if (iop_status_get(sc, 0) != 0) |
| 2250 | printf("%s: unable to retrieve status\n" , __func__); |
| 2251 | else |
| 2252 | printf("%s: IOP state = %d\n" , __func__, |
| 2253 | (le32toh(sc->sc_status.segnumber) >> 16) & 0xff); |
| 2254 | } |
| 2255 | #else |
| 2256 | __USE(rv); |
| 2257 | #endif |
| 2258 | } |
| 2259 | |
| 2260 | /* |
| 2261 | * Release an unused message frame back to the IOP's inbound fifo. |
| 2262 | */ |
| 2263 | static void |
| 2264 | iop_release_mfa(struct iop_softc *sc, u_int32_t mfa) |
| 2265 | { |
| 2266 | |
| 2267 | /* Use the frame to issue a no-op. */ |
| 2268 | iop_outl_msg(sc, mfa, I2O_VERSION_11 | (4 << 16)); |
| 2269 | iop_outl_msg(sc, mfa + 4, I2O_MSGFUNC(I2O_TID_IOP, I2O_UTIL_NOP)); |
| 2270 | iop_outl_msg(sc, mfa + 8, 0); |
| 2271 | iop_outl_msg(sc, mfa + 12, 0); |
| 2272 | |
| 2273 | iop_outl(sc, IOP_REG_IFIFO, mfa); |
| 2274 | } |
| 2275 | |
| 2276 | #ifdef I2ODEBUG |
| 2277 | /* |
| 2278 | * Dump a reply frame header. |
| 2279 | */ |
| 2280 | static void |
| 2281 | iop_reply_print(struct iop_softc *sc, struct i2o_reply *rb) |
| 2282 | { |
| 2283 | u_int function, detail; |
| 2284 | const char *statusstr; |
| 2285 | |
| 2286 | function = (le32toh(rb->msgfunc) >> 24) & 0xff; |
| 2287 | detail = le16toh(rb->detail); |
| 2288 | |
| 2289 | printf("%s: reply:\n" , device_xname(sc->sc_dev)); |
| 2290 | |
| 2291 | if (rb->reqstatus < sizeof(iop_status) / sizeof(iop_status[0])) |
| 2292 | statusstr = iop_status[rb->reqstatus]; |
| 2293 | else |
| 2294 | statusstr = "undefined error code" ; |
| 2295 | |
| 2296 | printf("%s: function=0x%02x status=0x%02x (%s)\n" , |
| 2297 | device_xname(sc->sc_dev), function, rb->reqstatus, statusstr); |
| 2298 | printf("%s: detail=0x%04x ictx=0x%08x tctx=0x%08x\n" , |
| 2299 | device_xname(sc->sc_dev), detail, le32toh(rb->msgictx), |
| 2300 | le32toh(rb->msgtctx)); |
| 2301 | printf("%s: tidi=%d tidt=%d flags=0x%02x\n" , device_xname(sc->sc_dev), |
| 2302 | (le32toh(rb->msgfunc) >> 12) & 4095, le32toh(rb->msgfunc) & 4095, |
| 2303 | (le32toh(rb->msgflags) >> 8) & 0xff); |
| 2304 | } |
| 2305 | #endif |
| 2306 | |
| 2307 | /* |
| 2308 | * Dump a transport failure reply. |
| 2309 | */ |
| 2310 | static void |
| 2311 | iop_tfn_print(struct iop_softc *sc, struct i2o_fault_notify *fn) |
| 2312 | { |
| 2313 | |
| 2314 | printf("%s: WARNING: transport failure:\n" , device_xname(sc->sc_dev)); |
| 2315 | |
| 2316 | printf("%s: ictx=0x%08x tctx=0x%08x\n" , device_xname(sc->sc_dev), |
| 2317 | le32toh(fn->msgictx), le32toh(fn->msgtctx)); |
| 2318 | printf("%s: failurecode=0x%02x severity=0x%02x\n" , |
| 2319 | device_xname(sc->sc_dev), fn->failurecode, fn->severity); |
| 2320 | printf("%s: highestver=0x%02x lowestver=0x%02x\n" , |
| 2321 | device_xname(sc->sc_dev), fn->highestver, fn->lowestver); |
| 2322 | } |
| 2323 | |
| 2324 | /* |
| 2325 | * Translate an I2O ASCII field into a C string. |
| 2326 | */ |
| 2327 | void |
| 2328 | iop_strvis(struct iop_softc *sc, const char *src, int slen, char *dst, int dlen) |
| 2329 | { |
| 2330 | int hc, lc, i, nit; |
| 2331 | |
| 2332 | dlen--; |
| 2333 | lc = 0; |
| 2334 | hc = 0; |
| 2335 | i = 0; |
| 2336 | |
| 2337 | /* |
| 2338 | * DPT use NUL as a space, whereas AMI use it as a terminator. The |
| 2339 | * spec has nothing to say about it. Since AMI fields are usually |
| 2340 | * filled with junk after the terminator, ... |
| 2341 | */ |
| 2342 | nit = (le16toh(sc->sc_status.orgid) != I2O_ORG_DPT); |
| 2343 | |
| 2344 | while (slen-- != 0 && dlen-- != 0) { |
| 2345 | if (nit && *src == '\0') |
| 2346 | break; |
| 2347 | else if (*src <= 0x20 || *src >= 0x7f) { |
| 2348 | if (hc) |
| 2349 | dst[i++] = ' '; |
| 2350 | } else { |
| 2351 | hc = 1; |
| 2352 | dst[i++] = *src; |
| 2353 | lc = i; |
| 2354 | } |
| 2355 | src++; |
| 2356 | } |
| 2357 | |
| 2358 | dst[lc] = '\0'; |
| 2359 | } |
| 2360 | |
| 2361 | /* |
| 2362 | * Retrieve the DEVICE_IDENTITY parameter group from the target and dump it. |
| 2363 | */ |
| 2364 | int |
| 2365 | iop_print_ident(struct iop_softc *sc, int tid) |
| 2366 | { |
| 2367 | struct { |
| 2368 | struct i2o_param_op_results pr; |
| 2369 | struct i2o_param_read_results prr; |
| 2370 | struct i2o_param_device_identity di; |
| 2371 | } __packed p; |
| 2372 | char buf[32]; |
| 2373 | int rv; |
| 2374 | |
| 2375 | rv = iop_field_get_all(sc, tid, I2O_PARAM_DEVICE_IDENTITY, &p, |
| 2376 | sizeof(p), NULL); |
| 2377 | if (rv != 0) |
| 2378 | return (rv); |
| 2379 | |
| 2380 | iop_strvis(sc, p.di.vendorinfo, sizeof(p.di.vendorinfo), buf, |
| 2381 | sizeof(buf)); |
| 2382 | printf(" <%s, " , buf); |
| 2383 | iop_strvis(sc, p.di.productinfo, sizeof(p.di.productinfo), buf, |
| 2384 | sizeof(buf)); |
| 2385 | printf("%s, " , buf); |
| 2386 | iop_strvis(sc, p.di.revlevel, sizeof(p.di.revlevel), buf, sizeof(buf)); |
| 2387 | printf("%s>" , buf); |
| 2388 | |
| 2389 | return (0); |
| 2390 | } |
| 2391 | |
| 2392 | /* |
| 2393 | * Claim or unclaim the specified TID. |
| 2394 | */ |
| 2395 | int |
| 2396 | iop_util_claim(struct iop_softc *sc, struct iop_initiator *ii, int release, |
| 2397 | int flags) |
| 2398 | { |
| 2399 | struct iop_msg *im; |
| 2400 | struct i2o_util_claim mf; |
| 2401 | int rv, func; |
| 2402 | |
| 2403 | func = release ? I2O_UTIL_CLAIM_RELEASE : I2O_UTIL_CLAIM; |
| 2404 | im = iop_msg_alloc(sc, IM_WAIT); |
| 2405 | |
| 2406 | /* We can use the same structure, as they're identical. */ |
| 2407 | mf.msgflags = I2O_MSGFLAGS(i2o_util_claim); |
| 2408 | mf.msgfunc = I2O_MSGFUNC(ii->ii_tid, func); |
| 2409 | mf.msgictx = ii->ii_ictx; |
| 2410 | mf.msgtctx = im->im_tctx; |
| 2411 | mf.flags = flags; |
| 2412 | |
| 2413 | rv = iop_msg_post(sc, im, &mf, 5000); |
| 2414 | iop_msg_free(sc, im); |
| 2415 | return (rv); |
| 2416 | } |
| 2417 | |
| 2418 | /* |
| 2419 | * Perform an abort. |
| 2420 | */ |
| 2421 | int iop_util_abort(struct iop_softc *sc, struct iop_initiator *ii, int func, |
| 2422 | int tctxabort, int flags) |
| 2423 | { |
| 2424 | struct iop_msg *im; |
| 2425 | struct i2o_util_abort mf; |
| 2426 | int rv; |
| 2427 | |
| 2428 | im = iop_msg_alloc(sc, IM_WAIT); |
| 2429 | |
| 2430 | mf.msgflags = I2O_MSGFLAGS(i2o_util_abort); |
| 2431 | mf.msgfunc = I2O_MSGFUNC(ii->ii_tid, I2O_UTIL_ABORT); |
| 2432 | mf.msgictx = ii->ii_ictx; |
| 2433 | mf.msgtctx = im->im_tctx; |
| 2434 | mf.flags = (func << 24) | flags; |
| 2435 | mf.tctxabort = tctxabort; |
| 2436 | |
| 2437 | rv = iop_msg_post(sc, im, &mf, 5000); |
| 2438 | iop_msg_free(sc, im); |
| 2439 | return (rv); |
| 2440 | } |
| 2441 | |
| 2442 | /* |
| 2443 | * Enable or disable reception of events for the specified device. |
| 2444 | */ |
| 2445 | int iop_util_eventreg(struct iop_softc *sc, struct iop_initiator *ii, int mask) |
| 2446 | { |
| 2447 | struct i2o_util_event_register mf; |
| 2448 | |
| 2449 | mf.msgflags = I2O_MSGFLAGS(i2o_util_event_register); |
| 2450 | mf.msgfunc = I2O_MSGFUNC(ii->ii_tid, I2O_UTIL_EVENT_REGISTER); |
| 2451 | mf.msgictx = ii->ii_ictx; |
| 2452 | mf.msgtctx = 0; |
| 2453 | mf.eventmask = mask; |
| 2454 | |
| 2455 | /* This message is replied to only when events are signalled. */ |
| 2456 | return (iop_post(sc, (u_int32_t *)&mf)); |
| 2457 | } |
| 2458 | |
| 2459 | int |
| 2460 | iopopen(dev_t dev, int flag, int mode, struct lwp *l) |
| 2461 | { |
| 2462 | struct iop_softc *sc; |
| 2463 | |
| 2464 | if ((sc = device_lookup_private(&iop_cd, minor(dev))) == NULL) |
| 2465 | return (ENXIO); |
| 2466 | if ((sc->sc_flags & IOP_ONLINE) == 0) |
| 2467 | return (ENXIO); |
| 2468 | if ((sc->sc_flags & IOP_OPEN) != 0) |
| 2469 | return (EBUSY); |
| 2470 | sc->sc_flags |= IOP_OPEN; |
| 2471 | |
| 2472 | return (0); |
| 2473 | } |
| 2474 | |
| 2475 | int |
| 2476 | iopclose(dev_t dev, int flag, int mode, |
| 2477 | struct lwp *l) |
| 2478 | { |
| 2479 | struct iop_softc *sc; |
| 2480 | |
| 2481 | sc = device_lookup_private(&iop_cd, minor(dev)); |
| 2482 | sc->sc_flags &= ~IOP_OPEN; |
| 2483 | |
| 2484 | return (0); |
| 2485 | } |
| 2486 | |
| 2487 | int |
| 2488 | iopioctl(dev_t dev, u_long cmd, void *data, int flag, struct lwp *l) |
| 2489 | { |
| 2490 | struct iop_softc *sc; |
| 2491 | struct iovec *iov; |
| 2492 | int rv, i; |
| 2493 | |
| 2494 | sc = device_lookup_private(&iop_cd, minor(dev)); |
| 2495 | rv = 0; |
| 2496 | |
| 2497 | switch (cmd) { |
| 2498 | case IOPIOCPT: |
| 2499 | rv = kauth_authorize_device_passthru(l->l_cred, dev, |
| 2500 | KAUTH_REQ_DEVICE_RAWIO_PASSTHRU_ALL, data); |
| 2501 | if (rv) |
| 2502 | return (rv); |
| 2503 | |
| 2504 | return (iop_passthrough(sc, (struct ioppt *)data, l->l_proc)); |
| 2505 | |
| 2506 | case IOPIOCGSTATUS: |
| 2507 | iov = (struct iovec *)data; |
| 2508 | i = sizeof(struct i2o_status); |
| 2509 | if (i > iov->iov_len) |
| 2510 | i = iov->iov_len; |
| 2511 | else |
| 2512 | iov->iov_len = i; |
| 2513 | if ((rv = iop_status_get(sc, 0)) == 0) |
| 2514 | rv = copyout(&sc->sc_status, iov->iov_base, i); |
| 2515 | return (rv); |
| 2516 | |
| 2517 | case IOPIOCGLCT: |
| 2518 | case IOPIOCGTIDMAP: |
| 2519 | case IOPIOCRECONFIG: |
| 2520 | break; |
| 2521 | |
| 2522 | default: |
| 2523 | #if defined(DIAGNOSTIC) || defined(I2ODEBUG) |
| 2524 | printf("%s: unknown ioctl %lx\n" , device_xname(sc->sc_dev), cmd); |
| 2525 | #endif |
| 2526 | return (ENOTTY); |
| 2527 | } |
| 2528 | |
| 2529 | mutex_enter(&sc->sc_conflock); |
| 2530 | |
| 2531 | switch (cmd) { |
| 2532 | case IOPIOCGLCT: |
| 2533 | iov = (struct iovec *)data; |
| 2534 | i = le16toh(sc->sc_lct->tablesize) << 2; |
| 2535 | if (i > iov->iov_len) |
| 2536 | i = iov->iov_len; |
| 2537 | else |
| 2538 | iov->iov_len = i; |
| 2539 | rv = copyout(sc->sc_lct, iov->iov_base, i); |
| 2540 | break; |
| 2541 | |
| 2542 | case IOPIOCRECONFIG: |
| 2543 | rv = iop_reconfigure(sc, 0); |
| 2544 | break; |
| 2545 | |
| 2546 | case IOPIOCGTIDMAP: |
| 2547 | iov = (struct iovec *)data; |
| 2548 | i = sizeof(struct iop_tidmap) * sc->sc_nlctent; |
| 2549 | if (i > iov->iov_len) |
| 2550 | i = iov->iov_len; |
| 2551 | else |
| 2552 | iov->iov_len = i; |
| 2553 | rv = copyout(sc->sc_tidmap, iov->iov_base, i); |
| 2554 | break; |
| 2555 | } |
| 2556 | |
| 2557 | mutex_exit(&sc->sc_conflock); |
| 2558 | return (rv); |
| 2559 | } |
| 2560 | |
| 2561 | static int |
| 2562 | iop_passthrough(struct iop_softc *sc, struct ioppt *pt, struct proc *p) |
| 2563 | { |
| 2564 | struct iop_msg *im; |
| 2565 | struct i2o_msg *mf; |
| 2566 | struct ioppt_buf *ptb; |
| 2567 | int rv, i, mapped; |
| 2568 | |
| 2569 | mf = NULL; |
| 2570 | im = NULL; |
| 2571 | mapped = 1; |
| 2572 | |
| 2573 | if (pt->pt_msglen > sc->sc_framesize || |
| 2574 | pt->pt_msglen < sizeof(struct i2o_msg) || |
| 2575 | pt->pt_nbufs > IOP_MAX_MSG_XFERS || |
| 2576 | pt->pt_nbufs < 0 || |
| 2577 | #if 0 |
| 2578 | pt->pt_replylen < 0 || |
| 2579 | #endif |
| 2580 | pt->pt_timo < 1000 || pt->pt_timo > 5*60*1000) |
| 2581 | return (EINVAL); |
| 2582 | |
| 2583 | for (i = 0; i < pt->pt_nbufs; i++) |
| 2584 | if (pt->pt_bufs[i].ptb_datalen > IOP_MAX_XFER) { |
| 2585 | rv = ENOMEM; |
| 2586 | goto bad; |
| 2587 | } |
| 2588 | |
| 2589 | mf = malloc(sc->sc_framesize, M_DEVBUF, M_WAITOK); |
| 2590 | if (mf == NULL) |
| 2591 | return (ENOMEM); |
| 2592 | |
| 2593 | if ((rv = copyin(pt->pt_msg, mf, pt->pt_msglen)) != 0) |
| 2594 | goto bad; |
| 2595 | |
| 2596 | im = iop_msg_alloc(sc, IM_WAIT | IM_NOSTATUS); |
| 2597 | im->im_rb = (struct i2o_reply *)mf; |
| 2598 | mf->msgictx = IOP_ICTX; |
| 2599 | mf->msgtctx = im->im_tctx; |
| 2600 | |
| 2601 | for (i = 0; i < pt->pt_nbufs; i++) { |
| 2602 | ptb = &pt->pt_bufs[i]; |
| 2603 | rv = iop_msg_map(sc, im, (u_int32_t *)mf, ptb->ptb_data, |
| 2604 | ptb->ptb_datalen, ptb->ptb_out != 0, p); |
| 2605 | if (rv != 0) |
| 2606 | goto bad; |
| 2607 | mapped = 1; |
| 2608 | } |
| 2609 | |
| 2610 | if ((rv = iop_msg_post(sc, im, mf, pt->pt_timo)) != 0) |
| 2611 | goto bad; |
| 2612 | |
| 2613 | i = (le32toh(im->im_rb->msgflags) >> 14) & ~3; |
| 2614 | if (i > sc->sc_framesize) |
| 2615 | i = sc->sc_framesize; |
| 2616 | if (i > pt->pt_replylen) |
| 2617 | i = pt->pt_replylen; |
| 2618 | rv = copyout(im->im_rb, pt->pt_reply, i); |
| 2619 | |
| 2620 | bad: |
| 2621 | if (mapped != 0) |
| 2622 | iop_msg_unmap(sc, im); |
| 2623 | if (im != NULL) |
| 2624 | iop_msg_free(sc, im); |
| 2625 | if (mf != NULL) |
| 2626 | free(mf, M_DEVBUF); |
| 2627 | return (rv); |
| 2628 | } |
| 2629 | |