1 /* $FreeBSD$ */ 2 /* $OpenBSD: hifn7751.c,v 1.120 2002/05/17 00:33:34 deraadt Exp $ */ 3 4 /* 5 * Invertex AEON / Hifn 7751 driver 6 * Copyright (c) 1999 Invertex Inc. All rights reserved. 7 * Copyright (c) 1999 Theo de Raadt 8 * Copyright (c) 2000-2001 Network Security Technologies, Inc. 9 * http://www.netsec.net 10 * 11 * This driver is based on a previous driver by Invertex, for which they 12 * requested: Please send any comments, feedback, bug-fixes, or feature 13 * requests to software@invertex.com. 14 * 15 * Redistribution and use in source and binary forms, with or without 16 * modification, are permitted provided that the following conditions 17 * are met: 18 * 19 * 1. Redistributions of source code must retain the above copyright 20 * notice, this list of conditions and the following disclaimer. 21 * 2. Redistributions in binary form must reproduce the above copyright 22 * notice, this list of conditions and the following disclaimer in the 23 * documentation and/or other materials provided with the distribution. 24 * 3. The name of the author may not be used to endorse or promote products 25 * derived from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 28 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 29 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 30 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 31 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 32 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 33 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 34 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 35 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 36 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 37 * 38 * Effort sponsored in part by the Defense Advanced Research Projects 39 * Agency (DARPA) and Air Force Research Laboratory, Air Force 40 * Materiel Command, USAF, under agreement number F30602-01-2-0537. 41 * 42 */ 43 44 /* 45 * Driver for the Hifn 7751 encryption processor. 46 */ 47 #include "opt_hifn.h" 48 49 #include <sys/param.h> 50 #include <sys/systm.h> 51 #include <sys/proc.h> 52 #include <sys/errno.h> 53 #include <sys/malloc.h> 54 #include <sys/kernel.h> 55 #include <sys/mbuf.h> 56 #include <sys/lock.h> 57 #include <sys/mutex.h> 58 #include <sys/sysctl.h> 59 60 #include <vm/vm.h> 61 #include <vm/pmap.h> 62 63 #include <machine/clock.h> 64 #include <machine/bus.h> 65 #include <machine/resource.h> 66 #include <sys/bus.h> 67 #include <sys/rman.h> 68 69 #include <opencrypto/cryptodev.h> 70 #include <sys/random.h> 71 72 #include <pci/pcivar.h> 73 #include <pci/pcireg.h> 74 75 #ifdef HIFN_RNDTEST 76 #include <dev/rndtest/rndtest.h> 77 #endif 78 #include <dev/hifn/hifn7751reg.h> 79 #include <dev/hifn/hifn7751var.h> 80 81 /* 82 * Prototypes and count for the pci_device structure 83 */ 84 static int hifn_probe(device_t); 85 static int hifn_attach(device_t); 86 static int hifn_detach(device_t); 87 static int hifn_suspend(device_t); 88 static int hifn_resume(device_t); 89 static void hifn_shutdown(device_t); 90 91 static device_method_t hifn_methods[] = { 92 /* Device interface */ 93 DEVMETHOD(device_probe, hifn_probe), 94 DEVMETHOD(device_attach, hifn_attach), 95 DEVMETHOD(device_detach, hifn_detach), 96 DEVMETHOD(device_suspend, hifn_suspend), 97 DEVMETHOD(device_resume, hifn_resume), 98 DEVMETHOD(device_shutdown, hifn_shutdown), 99 100 /* bus interface */ 101 DEVMETHOD(bus_print_child, bus_generic_print_child), 102 DEVMETHOD(bus_driver_added, bus_generic_driver_added), 103 104 { 0, 0 } 105 }; 106 static driver_t hifn_driver = { 107 "hifn", 108 hifn_methods, 109 sizeof (struct hifn_softc) 110 }; 111 static devclass_t hifn_devclass; 112 113 DRIVER_MODULE(hifn, pci, hifn_driver, hifn_devclass, 0, 0); 114 MODULE_DEPEND(hifn, crypto, 1, 1, 1); 115 #ifdef HIFN_RNDTEST 116 MODULE_DEPEND(hifn, rndtest, 1, 1, 1); 117 #endif 118 119 static void hifn_reset_board(struct hifn_softc *, int); 120 static void hifn_reset_puc(struct hifn_softc *); 121 static void hifn_puc_wait(struct hifn_softc *); 122 static int hifn_enable_crypto(struct hifn_softc *); 123 static void hifn_set_retry(struct hifn_softc *sc); 124 static void hifn_init_dma(struct hifn_softc *); 125 static void hifn_init_pci_registers(struct hifn_softc *); 126 static int hifn_sramsize(struct hifn_softc *); 127 static int hifn_dramsize(struct hifn_softc *); 128 static int hifn_ramtype(struct hifn_softc *); 129 static void hifn_sessions(struct hifn_softc *); 130 static void hifn_intr(void *); 131 static u_int hifn_write_command(struct hifn_command *, u_int8_t *); 132 static u_int32_t hifn_next_signature(u_int32_t a, u_int cnt); 133 static int hifn_newsession(void *, u_int32_t *, struct cryptoini *); 134 static int hifn_freesession(void *, u_int64_t); 135 static int hifn_process(void *, struct cryptop *, int); 136 static void hifn_callback(struct hifn_softc *, struct hifn_command *, u_int8_t *); 137 static int hifn_crypto(struct hifn_softc *, struct hifn_command *, struct cryptop *, int); 138 static int hifn_readramaddr(struct hifn_softc *, int, u_int8_t *); 139 static int hifn_writeramaddr(struct hifn_softc *, int, u_int8_t *); 140 static int hifn_dmamap_load_src(struct hifn_softc *, struct hifn_command *); 141 static int hifn_dmamap_load_dst(struct hifn_softc *, struct hifn_command *); 142 static int hifn_init_pubrng(struct hifn_softc *); 143 static void hifn_rng(void *); 144 static void hifn_tick(void *); 145 static void hifn_abort(struct hifn_softc *); 146 static void hifn_alloc_slot(struct hifn_softc *, int *, int *, int *, int *); 147 148 static void hifn_write_reg_0(struct hifn_softc *, bus_size_t, u_int32_t); 149 static void hifn_write_reg_1(struct hifn_softc *, bus_size_t, u_int32_t); 150 151 static __inline__ u_int32_t 152 READ_REG_0(struct hifn_softc *sc, bus_size_t reg) 153 { 154 u_int32_t v = bus_space_read_4(sc->sc_st0, sc->sc_sh0, reg); 155 sc->sc_bar0_lastreg = (bus_size_t) -1; 156 return (v); 157 } 158 #define WRITE_REG_0(sc, reg, val) hifn_write_reg_0(sc, reg, val) 159 160 static __inline__ u_int32_t 161 READ_REG_1(struct hifn_softc *sc, bus_size_t reg) 162 { 163 u_int32_t v = bus_space_read_4(sc->sc_st1, sc->sc_sh1, reg); 164 sc->sc_bar1_lastreg = (bus_size_t) -1; 165 return (v); 166 } 167 #define WRITE_REG_1(sc, reg, val) hifn_write_reg_1(sc, reg, val) 168 169 SYSCTL_NODE(_hw, OID_AUTO, hifn, CTLFLAG_RD, 0, "Hifn driver parameters"); 170 171 #ifdef HIFN_DEBUG 172 static int hifn_debug = 0; 173 SYSCTL_INT(_hw_hifn, OID_AUTO, debug, CTLFLAG_RW, &hifn_debug, 174 0, "control debugging msgs"); 175 #endif 176 177 static struct hifn_stats hifnstats; 178 SYSCTL_STRUCT(_hw_hifn, OID_AUTO, stats, CTLFLAG_RD, &hifnstats, 179 hifn_stats, "driver statistics"); 180 static int hifn_maxbatch = 1; 181 SYSCTL_INT(_hw_hifn, OID_AUTO, maxbatch, CTLFLAG_RW, &hifn_maxbatch, 182 0, "max ops to batch w/o interrupt"); 183 184 /* 185 * Probe for a supported device. The PCI vendor and device 186 * IDs are used to detect devices we know how to handle. 187 */ 188 static int 189 hifn_probe(device_t dev) 190 { 191 if (pci_get_vendor(dev) == PCI_VENDOR_INVERTEX && 192 pci_get_device(dev) == PCI_PRODUCT_INVERTEX_AEON) 193 return (0); 194 if (pci_get_vendor(dev) == PCI_VENDOR_HIFN && 195 (pci_get_device(dev) == PCI_PRODUCT_HIFN_7751 || 196 pci_get_device(dev) == PCI_PRODUCT_HIFN_7951 || 197 pci_get_device(dev) == PCI_PRODUCT_HIFN_7811)) 198 return (0); 199 if (pci_get_vendor(dev) == PCI_VENDOR_NETSEC && 200 pci_get_device(dev) == PCI_PRODUCT_NETSEC_7751) 201 return (0); 202 return (ENXIO); 203 } 204 205 static void 206 hifn_dmamap_cb(void *arg, bus_dma_segment_t *segs, int nseg, int error) 207 { 208 bus_addr_t *paddr = (bus_addr_t*) arg; 209 *paddr = segs->ds_addr; 210 } 211 212 static const char* 213 hifn_partname(struct hifn_softc *sc) 214 { 215 /* XXX sprintf numbers when not decoded */ 216 switch (pci_get_vendor(sc->sc_dev)) { 217 case PCI_VENDOR_HIFN: 218 switch (pci_get_device(sc->sc_dev)) { 219 case PCI_PRODUCT_HIFN_6500: return "Hifn 6500"; 220 case PCI_PRODUCT_HIFN_7751: return "Hifn 7751"; 221 case PCI_PRODUCT_HIFN_7811: return "Hifn 7811"; 222 case PCI_PRODUCT_HIFN_7951: return "Hifn 7951"; 223 } 224 return "Hifn unknown-part"; 225 case PCI_VENDOR_INVERTEX: 226 switch (pci_get_device(sc->sc_dev)) { 227 case PCI_PRODUCT_INVERTEX_AEON: return "Invertex AEON"; 228 } 229 return "Invertex unknown-part"; 230 case PCI_VENDOR_NETSEC: 231 switch (pci_get_device(sc->sc_dev)) { 232 case PCI_PRODUCT_NETSEC_7751: return "NetSec 7751"; 233 } 234 return "NetSec unknown-part"; 235 } 236 return "Unknown-vendor unknown-part"; 237 } 238 239 static void 240 default_harvest(struct rndtest_state *rsp, void *buf, u_int count) 241 { 242 random_harvest(buf, count, count*NBBY, 0, RANDOM_PURE); 243 } 244 245 /* 246 * Attach an interface that successfully probed. 247 */ 248 static int 249 hifn_attach(device_t dev) 250 { 251 struct hifn_softc *sc = device_get_softc(dev); 252 u_int32_t cmd; 253 caddr_t kva; 254 int rseg, rid; 255 char rbase; 256 u_int16_t ena, rev; 257 258 KASSERT(sc != NULL, ("hifn_attach: null software carrier!")); 259 bzero(sc, sizeof (*sc)); 260 sc->sc_dev = dev; 261 262 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), "hifn driver", MTX_DEF); 263 264 /* XXX handle power management */ 265 266 /* 267 * The 7951 has a random number generator and 268 * public key support; note this. 269 */ 270 if (pci_get_vendor(dev) == PCI_VENDOR_HIFN && 271 pci_get_device(dev) == PCI_PRODUCT_HIFN_7951) 272 sc->sc_flags = HIFN_HAS_RNG | HIFN_HAS_PUBLIC; 273 /* 274 * The 7811 has a random number generator and 275 * we also note it's identity 'cuz of some quirks. 276 */ 277 if (pci_get_vendor(dev) == PCI_VENDOR_HIFN && 278 pci_get_device(dev) == PCI_PRODUCT_HIFN_7811) 279 sc->sc_flags |= HIFN_IS_7811 | HIFN_HAS_RNG; 280 281 /* 282 * Configure support for memory-mapped access to 283 * registers and for DMA operations. 284 */ 285 #define PCIM_ENA (PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN) 286 cmd = pci_read_config(dev, PCIR_COMMAND, 4); 287 cmd |= PCIM_ENA; 288 pci_write_config(dev, PCIR_COMMAND, cmd, 4); 289 cmd = pci_read_config(dev, PCIR_COMMAND, 4); 290 if ((cmd & PCIM_ENA) != PCIM_ENA) { 291 device_printf(dev, "failed to enable %s\n", 292 (cmd & PCIM_ENA) == 0 ? 293 "memory mapping & bus mastering" : 294 (cmd & PCIM_CMD_MEMEN) == 0 ? 295 "memory mapping" : "bus mastering"); 296 goto fail_pci; 297 } 298 #undef PCIM_ENA 299 300 /* 301 * Setup PCI resources. Note that we record the bus 302 * tag and handle for each register mapping, this is 303 * used by the READ_REG_0, WRITE_REG_0, READ_REG_1, 304 * and WRITE_REG_1 macros throughout the driver. 305 */ 306 rid = HIFN_BAR0; 307 sc->sc_bar0res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, 308 0, ~0, 1, RF_ACTIVE); 309 if (sc->sc_bar0res == NULL) { 310 device_printf(dev, "cannot map bar%d register space\n", 0); 311 goto fail_pci; 312 } 313 sc->sc_st0 = rman_get_bustag(sc->sc_bar0res); 314 sc->sc_sh0 = rman_get_bushandle(sc->sc_bar0res); 315 sc->sc_bar0_lastreg = (bus_size_t) -1; 316 317 rid = HIFN_BAR1; 318 sc->sc_bar1res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, 319 0, ~0, 1, RF_ACTIVE); 320 if (sc->sc_bar1res == NULL) { 321 device_printf(dev, "cannot map bar%d register space\n", 1); 322 goto fail_io0; 323 } 324 sc->sc_st1 = rman_get_bustag(sc->sc_bar1res); 325 sc->sc_sh1 = rman_get_bushandle(sc->sc_bar1res); 326 sc->sc_bar1_lastreg = (bus_size_t) -1; 327 328 hifn_set_retry(sc); 329 330 /* 331 * Setup the area where the Hifn DMA's descriptors 332 * and associated data structures. 333 */ 334 if (bus_dma_tag_create(NULL, /* parent */ 335 1, 0, /* alignment,boundary */ 336 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 337 BUS_SPACE_MAXADDR, /* highaddr */ 338 NULL, NULL, /* filter, filterarg */ 339 HIFN_MAX_DMALEN, /* maxsize */ 340 MAX_SCATTER, /* nsegments */ 341 HIFN_MAX_SEGLEN, /* maxsegsize */ 342 BUS_DMA_ALLOCNOW, /* flags */ 343 &sc->sc_dmat)) { 344 device_printf(dev, "cannot allocate DMA tag\n"); 345 goto fail_io1; 346 } 347 if (bus_dmamap_create(sc->sc_dmat, BUS_DMA_NOWAIT, &sc->sc_dmamap)) { 348 device_printf(dev, "cannot create dma map\n"); 349 bus_dma_tag_destroy(sc->sc_dmat); 350 goto fail_io1; 351 } 352 if (bus_dmamem_alloc(sc->sc_dmat, (void**) &kva, BUS_DMA_NOWAIT, &sc->sc_dmamap)) { 353 device_printf(dev, "cannot alloc dma buffer\n"); 354 bus_dmamap_destroy(sc->sc_dmat, sc->sc_dmamap); 355 bus_dma_tag_destroy(sc->sc_dmat); 356 goto fail_io1; 357 } 358 if (bus_dmamap_load(sc->sc_dmat, sc->sc_dmamap, kva, 359 sizeof (*sc->sc_dma), 360 hifn_dmamap_cb, &sc->sc_dma_physaddr, 361 BUS_DMA_NOWAIT)) { 362 device_printf(dev, "cannot load dma map\n"); 363 bus_dmamem_free(sc->sc_dmat, kva, sc->sc_dmamap); 364 bus_dmamap_destroy(sc->sc_dmat, sc->sc_dmamap); 365 bus_dma_tag_destroy(sc->sc_dmat); 366 goto fail_io1; 367 } 368 sc->sc_dma = (struct hifn_dma *)kva; 369 bzero(sc->sc_dma, sizeof(*sc->sc_dma)); 370 371 KASSERT(sc->sc_st0 != NULL, ("hifn_attach: null bar0 tag!")); 372 KASSERT(sc->sc_sh0 != NULL, ("hifn_attach: null bar0 handle!")); 373 KASSERT(sc->sc_st1 != NULL, ("hifn_attach: null bar1 tag!")); 374 KASSERT(sc->sc_sh1 != NULL, ("hifn_attach: null bar1 handle!")); 375 376 /* 377 * Reset the board and do the ``secret handshake'' 378 * to enable the crypto support. Then complete the 379 * initialization procedure by setting up the interrupt 380 * and hooking in to the system crypto support so we'll 381 * get used for system services like the crypto device, 382 * IPsec, RNG device, etc. 383 */ 384 hifn_reset_board(sc, 0); 385 386 if (hifn_enable_crypto(sc) != 0) { 387 device_printf(dev, "crypto enabling failed\n"); 388 goto fail_mem; 389 } 390 hifn_reset_puc(sc); 391 392 hifn_init_dma(sc); 393 hifn_init_pci_registers(sc); 394 395 if (hifn_ramtype(sc)) 396 goto fail_mem; 397 398 if (sc->sc_drammodel == 0) 399 hifn_sramsize(sc); 400 else 401 hifn_dramsize(sc); 402 403 /* 404 * Workaround for NetSec 7751 rev A: half ram size because two 405 * of the address lines were left floating 406 */ 407 if (pci_get_vendor(dev) == PCI_VENDOR_NETSEC && 408 pci_get_device(dev) == PCI_PRODUCT_NETSEC_7751 && 409 pci_get_revid(dev) == 0x61) /*XXX???*/ 410 sc->sc_ramsize >>= 1; 411 412 /* 413 * Arrange the interrupt line. 414 */ 415 rid = 0; 416 sc->sc_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 417 0, ~0, 1, RF_SHAREABLE|RF_ACTIVE); 418 if (sc->sc_irq == NULL) { 419 device_printf(dev, "could not map interrupt\n"); 420 goto fail_mem; 421 } 422 /* 423 * NB: Network code assumes we are blocked with splimp() 424 * so make sure the IRQ is marked appropriately. 425 */ 426 if (bus_setup_intr(dev, sc->sc_irq, INTR_TYPE_NET | INTR_MPSAFE, 427 hifn_intr, sc, &sc->sc_intrhand)) { 428 device_printf(dev, "could not setup interrupt\n"); 429 goto fail_intr2; 430 } 431 432 hifn_sessions(sc); 433 434 /* 435 * NB: Keep only the low 16 bits; this masks the chip id 436 * from the 7951. 437 */ 438 rev = READ_REG_1(sc, HIFN_1_REVID) & 0xffff; 439 440 rseg = sc->sc_ramsize / 1024; 441 rbase = 'K'; 442 if (sc->sc_ramsize >= (1024 * 1024)) { 443 rbase = 'M'; 444 rseg /= 1024; 445 } 446 device_printf(sc->sc_dev, "%s, rev %u, %d%cB %cram, %u sessions\n", 447 hifn_partname(sc), rev, 448 rseg, rbase, sc->sc_drammodel ? 'd' : 's', 449 sc->sc_maxses); 450 451 sc->sc_cid = crypto_get_driverid(0); 452 if (sc->sc_cid < 0) { 453 device_printf(dev, "could not get crypto driver id\n"); 454 goto fail_intr; 455 } 456 457 WRITE_REG_0(sc, HIFN_0_PUCNFG, 458 READ_REG_0(sc, HIFN_0_PUCNFG) | HIFN_PUCNFG_CHIPID); 459 ena = READ_REG_0(sc, HIFN_0_PUSTAT) & HIFN_PUSTAT_CHIPENA; 460 461 switch (ena) { 462 case HIFN_PUSTAT_ENA_2: 463 crypto_register(sc->sc_cid, CRYPTO_3DES_CBC, 0, 0, 464 hifn_newsession, hifn_freesession, hifn_process, sc); 465 crypto_register(sc->sc_cid, CRYPTO_ARC4, 0, 0, 466 hifn_newsession, hifn_freesession, hifn_process, sc); 467 /*FALLTHROUGH*/ 468 case HIFN_PUSTAT_ENA_1: 469 crypto_register(sc->sc_cid, CRYPTO_MD5, 0, 0, 470 hifn_newsession, hifn_freesession, hifn_process, sc); 471 crypto_register(sc->sc_cid, CRYPTO_SHA1, 0, 0, 472 hifn_newsession, hifn_freesession, hifn_process, sc); 473 crypto_register(sc->sc_cid, CRYPTO_MD5_HMAC, 0, 0, 474 hifn_newsession, hifn_freesession, hifn_process, sc); 475 crypto_register(sc->sc_cid, CRYPTO_SHA1_HMAC, 0, 0, 476 hifn_newsession, hifn_freesession, hifn_process, sc); 477 crypto_register(sc->sc_cid, CRYPTO_DES_CBC, 0, 0, 478 hifn_newsession, hifn_freesession, hifn_process, sc); 479 break; 480 } 481 482 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 483 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 484 485 if (sc->sc_flags & (HIFN_HAS_PUBLIC | HIFN_HAS_RNG)) 486 hifn_init_pubrng(sc); 487 488 /* NB: 1 means the callout runs w/o Giant locked */ 489 callout_init(&sc->sc_tickto, 1); 490 callout_reset(&sc->sc_tickto, hz, hifn_tick, sc); 491 492 return (0); 493 494 fail_intr: 495 bus_teardown_intr(dev, sc->sc_irq, sc->sc_intrhand); 496 fail_intr2: 497 /* XXX don't store rid */ 498 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq); 499 fail_mem: 500 bus_dmamap_unload(sc->sc_dmat, sc->sc_dmamap); 501 bus_dmamem_free(sc->sc_dmat, sc->sc_dma, sc->sc_dmamap); 502 bus_dmamap_destroy(sc->sc_dmat, sc->sc_dmamap); 503 bus_dma_tag_destroy(sc->sc_dmat); 504 505 /* Turn off DMA polling */ 506 WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET | 507 HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE); 508 fail_io1: 509 bus_release_resource(dev, SYS_RES_MEMORY, HIFN_BAR1, sc->sc_bar1res); 510 fail_io0: 511 bus_release_resource(dev, SYS_RES_MEMORY, HIFN_BAR0, sc->sc_bar0res); 512 fail_pci: 513 mtx_destroy(&sc->sc_mtx); 514 return (ENXIO); 515 } 516 517 /* 518 * Detach an interface that successfully probed. 519 */ 520 static int 521 hifn_detach(device_t dev) 522 { 523 struct hifn_softc *sc = device_get_softc(dev); 524 525 KASSERT(sc != NULL, ("hifn_detach: null software carrier!")); 526 527 /* disable interrupts */ 528 WRITE_REG_1(sc, HIFN_1_DMA_IER, 0); 529 530 /*XXX other resources */ 531 callout_stop(&sc->sc_tickto); 532 callout_stop(&sc->sc_rngto); 533 #ifdef HIFN_RNDTEST 534 if (sc->sc_rndtest) 535 rndtest_detach(sc->sc_rndtest); 536 #endif 537 538 /* Turn off DMA polling */ 539 WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET | 540 HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE); 541 542 crypto_unregister_all(sc->sc_cid); 543 544 bus_generic_detach(dev); /*XXX should be no children, right? */ 545 546 bus_teardown_intr(dev, sc->sc_irq, sc->sc_intrhand); 547 /* XXX don't store rid */ 548 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq); 549 550 bus_dmamap_unload(sc->sc_dmat, sc->sc_dmamap); 551 bus_dmamem_free(sc->sc_dmat, sc->sc_dma, sc->sc_dmamap); 552 bus_dmamap_destroy(sc->sc_dmat, sc->sc_dmamap); 553 bus_dma_tag_destroy(sc->sc_dmat); 554 555 bus_release_resource(dev, SYS_RES_MEMORY, HIFN_BAR1, sc->sc_bar1res); 556 bus_release_resource(dev, SYS_RES_MEMORY, HIFN_BAR0, sc->sc_bar0res); 557 558 mtx_destroy(&sc->sc_mtx); 559 560 return (0); 561 } 562 563 /* 564 * Stop all chip I/O so that the kernel's probe routines don't 565 * get confused by errant DMAs when rebooting. 566 */ 567 static void 568 hifn_shutdown(device_t dev) 569 { 570 #ifdef notyet 571 hifn_stop(device_get_softc(dev)); 572 #endif 573 } 574 575 /* 576 * Device suspend routine. Stop the interface and save some PCI 577 * settings in case the BIOS doesn't restore them properly on 578 * resume. 579 */ 580 static int 581 hifn_suspend(device_t dev) 582 { 583 struct hifn_softc *sc = device_get_softc(dev); 584 #ifdef notyet 585 int i; 586 587 hifn_stop(sc); 588 for (i = 0; i < 5; i++) 589 sc->saved_maps[i] = pci_read_config(dev, PCIR_MAPS + i * 4, 4); 590 sc->saved_biosaddr = pci_read_config(dev, PCIR_BIOS, 4); 591 sc->saved_intline = pci_read_config(dev, PCIR_INTLINE, 1); 592 sc->saved_cachelnsz = pci_read_config(dev, PCIR_CACHELNSZ, 1); 593 sc->saved_lattimer = pci_read_config(dev, PCIR_LATTIMER, 1); 594 #endif 595 sc->sc_suspended = 1; 596 597 return (0); 598 } 599 600 /* 601 * Device resume routine. Restore some PCI settings in case the BIOS 602 * doesn't, re-enable busmastering, and restart the interface if 603 * appropriate. 604 */ 605 static int 606 hifn_resume(device_t dev) 607 { 608 struct hifn_softc *sc = device_get_softc(dev); 609 #ifdef notyet 610 int i; 611 612 /* better way to do this? */ 613 for (i = 0; i < 5; i++) 614 pci_write_config(dev, PCIR_MAPS + i * 4, sc->saved_maps[i], 4); 615 pci_write_config(dev, PCIR_BIOS, sc->saved_biosaddr, 4); 616 pci_write_config(dev, PCIR_INTLINE, sc->saved_intline, 1); 617 pci_write_config(dev, PCIR_CACHELNSZ, sc->saved_cachelnsz, 1); 618 pci_write_config(dev, PCIR_LATTIMER, sc->saved_lattimer, 1); 619 620 /* reenable busmastering */ 621 pci_enable_busmaster(dev); 622 pci_enable_io(dev, HIFN_RES); 623 624 /* reinitialize interface if necessary */ 625 if (ifp->if_flags & IFF_UP) 626 rl_init(sc); 627 #endif 628 sc->sc_suspended = 0; 629 630 return (0); 631 } 632 633 static int 634 hifn_init_pubrng(struct hifn_softc *sc) 635 { 636 u_int32_t r; 637 int i; 638 639 #ifdef HIFN_RNDTEST 640 sc->sc_rndtest = rndtest_attach(sc->sc_dev); 641 if (sc->sc_rndtest) 642 sc->sc_harvest = rndtest_harvest; 643 else 644 sc->sc_harvest = default_harvest; 645 #else 646 sc->sc_harvest = default_harvest; 647 #endif 648 if ((sc->sc_flags & HIFN_IS_7811) == 0) { 649 /* Reset 7951 public key/rng engine */ 650 WRITE_REG_1(sc, HIFN_1_PUB_RESET, 651 READ_REG_1(sc, HIFN_1_PUB_RESET) | HIFN_PUBRST_RESET); 652 653 for (i = 0; i < 100; i++) { 654 DELAY(1000); 655 if ((READ_REG_1(sc, HIFN_1_PUB_RESET) & 656 HIFN_PUBRST_RESET) == 0) 657 break; 658 } 659 660 if (i == 100) { 661 device_printf(sc->sc_dev, "public key init failed\n"); 662 return (1); 663 } 664 } 665 666 /* Enable the rng, if available */ 667 if (sc->sc_flags & HIFN_HAS_RNG) { 668 if (sc->sc_flags & HIFN_IS_7811) { 669 r = READ_REG_1(sc, HIFN_1_7811_RNGENA); 670 if (r & HIFN_7811_RNGENA_ENA) { 671 r &= ~HIFN_7811_RNGENA_ENA; 672 WRITE_REG_1(sc, HIFN_1_7811_RNGENA, r); 673 } 674 WRITE_REG_1(sc, HIFN_1_7811_RNGCFG, 675 HIFN_7811_RNGCFG_DEFL); 676 r |= HIFN_7811_RNGENA_ENA; 677 WRITE_REG_1(sc, HIFN_1_7811_RNGENA, r); 678 } else 679 WRITE_REG_1(sc, HIFN_1_RNG_CONFIG, 680 READ_REG_1(sc, HIFN_1_RNG_CONFIG) | 681 HIFN_RNGCFG_ENA); 682 683 sc->sc_rngfirst = 1; 684 if (hz >= 100) 685 sc->sc_rnghz = hz / 100; 686 else 687 sc->sc_rnghz = 1; 688 /* NB: 1 means the callout runs w/o Giant locked */ 689 callout_init(&sc->sc_rngto, 1); 690 callout_reset(&sc->sc_rngto, sc->sc_rnghz, hifn_rng, sc); 691 } 692 693 /* Enable public key engine, if available */ 694 if (sc->sc_flags & HIFN_HAS_PUBLIC) { 695 WRITE_REG_1(sc, HIFN_1_PUB_IEN, HIFN_PUBIEN_DONE); 696 sc->sc_dmaier |= HIFN_DMAIER_PUBDONE; 697 WRITE_REG_1(sc, HIFN_1_DMA_IER, sc->sc_dmaier); 698 } 699 700 return (0); 701 } 702 703 static void 704 hifn_rng(void *vsc) 705 { 706 #define RANDOM_BITS(n) (n)*sizeof (u_int32_t), (n)*sizeof (u_int32_t)*NBBY, 0 707 struct hifn_softc *sc = vsc; 708 u_int32_t sts, num[2]; 709 int i; 710 711 if (sc->sc_flags & HIFN_IS_7811) { 712 for (i = 0; i < 5; i++) { 713 sts = READ_REG_1(sc, HIFN_1_7811_RNGSTS); 714 if (sts & HIFN_7811_RNGSTS_UFL) { 715 device_printf(sc->sc_dev, 716 "RNG underflow: disabling\n"); 717 return; 718 } 719 if ((sts & HIFN_7811_RNGSTS_RDY) == 0) 720 break; 721 722 /* 723 * There are at least two words in the RNG FIFO 724 * at this point. 725 */ 726 num[0] = READ_REG_1(sc, HIFN_1_7811_RNGDAT); 727 num[1] = READ_REG_1(sc, HIFN_1_7811_RNGDAT); 728 /* NB: discard first data read */ 729 if (sc->sc_rngfirst) 730 sc->sc_rngfirst = 0; 731 else 732 (*sc->sc_harvest)(sc->sc_rndtest, 733 num, sizeof (num)); 734 } 735 } else { 736 num[0] = READ_REG_1(sc, HIFN_1_RNG_DATA); 737 738 /* NB: discard first data read */ 739 if (sc->sc_rngfirst) 740 sc->sc_rngfirst = 0; 741 else 742 (*sc->sc_harvest)(sc->sc_rndtest, 743 num, sizeof (num[0])); 744 } 745 746 callout_reset(&sc->sc_rngto, sc->sc_rnghz, hifn_rng, sc); 747 #undef RANDOM_BITS 748 } 749 750 static void 751 hifn_puc_wait(struct hifn_softc *sc) 752 { 753 int i; 754 755 for (i = 5000; i > 0; i--) { 756 DELAY(1); 757 if (!(READ_REG_0(sc, HIFN_0_PUCTRL) & HIFN_PUCTRL_RESET)) 758 break; 759 } 760 if (!i) 761 device_printf(sc->sc_dev, "proc unit did not reset\n"); 762 } 763 764 /* 765 * Reset the processing unit. 766 */ 767 static void 768 hifn_reset_puc(struct hifn_softc *sc) 769 { 770 /* Reset processing unit */ 771 WRITE_REG_0(sc, HIFN_0_PUCTRL, HIFN_PUCTRL_DMAENA); 772 hifn_puc_wait(sc); 773 } 774 775 /* 776 * Set the Retry and TRDY registers; note that we set them to 777 * zero because the 7811 locks up when forced to retry (section 778 * 3.6 of "Specification Update SU-0014-04". Not clear if we 779 * should do this for all Hifn parts, but it doesn't seem to hurt. 780 */ 781 static void 782 hifn_set_retry(struct hifn_softc *sc) 783 { 784 /* NB: RETRY only responds to 8-bit reads/writes */ 785 pci_write_config(sc->sc_dev, HIFN_RETRY_TIMEOUT, 0, 1); 786 pci_write_config(sc->sc_dev, HIFN_TRDY_TIMEOUT, 0, 4); 787 } 788 789 /* 790 * Resets the board. Values in the regesters are left as is 791 * from the reset (i.e. initial values are assigned elsewhere). 792 */ 793 static void 794 hifn_reset_board(struct hifn_softc *sc, int full) 795 { 796 u_int32_t reg; 797 798 /* 799 * Set polling in the DMA configuration register to zero. 0x7 avoids 800 * resetting the board and zeros out the other fields. 801 */ 802 WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET | 803 HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE); 804 805 /* 806 * Now that polling has been disabled, we have to wait 1 ms 807 * before resetting the board. 808 */ 809 DELAY(1000); 810 811 /* Reset the DMA unit */ 812 if (full) { 813 WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MODE); 814 DELAY(1000); 815 } else { 816 WRITE_REG_1(sc, HIFN_1_DMA_CNFG, 817 HIFN_DMACNFG_MODE | HIFN_DMACNFG_MSTRESET); 818 hifn_reset_puc(sc); 819 } 820 821 KASSERT(sc->sc_dma != NULL, ("hifn_reset_board: null DMA tag!")); 822 bzero(sc->sc_dma, sizeof(*sc->sc_dma)); 823 824 /* Bring dma unit out of reset */ 825 WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET | 826 HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE); 827 828 hifn_puc_wait(sc); 829 hifn_set_retry(sc); 830 831 if (sc->sc_flags & HIFN_IS_7811) { 832 for (reg = 0; reg < 1000; reg++) { 833 if (READ_REG_1(sc, HIFN_1_7811_MIPSRST) & 834 HIFN_MIPSRST_CRAMINIT) 835 break; 836 DELAY(1000); 837 } 838 if (reg == 1000) 839 printf(": cram init timeout\n"); 840 } 841 } 842 843 static u_int32_t 844 hifn_next_signature(u_int32_t a, u_int cnt) 845 { 846 int i; 847 u_int32_t v; 848 849 for (i = 0; i < cnt; i++) { 850 851 /* get the parity */ 852 v = a & 0x80080125; 853 v ^= v >> 16; 854 v ^= v >> 8; 855 v ^= v >> 4; 856 v ^= v >> 2; 857 v ^= v >> 1; 858 859 a = (v & 1) ^ (a << 1); 860 } 861 862 return a; 863 } 864 865 struct pci2id { 866 u_short pci_vendor; 867 u_short pci_prod; 868 char card_id[13]; 869 }; 870 static struct pci2id pci2id[] = { 871 { 872 PCI_VENDOR_HIFN, 873 PCI_PRODUCT_HIFN_7951, 874 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 875 0x00, 0x00, 0x00, 0x00, 0x00 } 876 }, { 877 PCI_VENDOR_NETSEC, 878 PCI_PRODUCT_NETSEC_7751, 879 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 880 0x00, 0x00, 0x00, 0x00, 0x00 } 881 }, { 882 PCI_VENDOR_INVERTEX, 883 PCI_PRODUCT_INVERTEX_AEON, 884 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 885 0x00, 0x00, 0x00, 0x00, 0x00 } 886 }, { 887 PCI_VENDOR_HIFN, 888 PCI_PRODUCT_HIFN_7811, 889 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 890 0x00, 0x00, 0x00, 0x00, 0x00 } 891 }, { 892 /* 893 * Other vendors share this PCI ID as well, such as 894 * http://www.powercrypt.com, and obviously they also 895 * use the same key. 896 */ 897 PCI_VENDOR_HIFN, 898 PCI_PRODUCT_HIFN_7751, 899 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 900 0x00, 0x00, 0x00, 0x00, 0x00 } 901 }, 902 }; 903 904 /* 905 * Checks to see if crypto is already enabled. If crypto isn't enable, 906 * "hifn_enable_crypto" is called to enable it. The check is important, 907 * as enabling crypto twice will lock the board. 908 */ 909 static int 910 hifn_enable_crypto(struct hifn_softc *sc) 911 { 912 u_int32_t dmacfg, ramcfg, encl, addr, i; 913 char *offtbl = NULL; 914 915 for (i = 0; i < sizeof(pci2id)/sizeof(pci2id[0]); i++) { 916 if (pci2id[i].pci_vendor == pci_get_vendor(sc->sc_dev) && 917 pci2id[i].pci_prod == pci_get_device(sc->sc_dev)) { 918 offtbl = pci2id[i].card_id; 919 break; 920 } 921 } 922 if (offtbl == NULL) { 923 device_printf(sc->sc_dev, "Unknown card!\n"); 924 return (1); 925 } 926 927 ramcfg = READ_REG_0(sc, HIFN_0_PUCNFG); 928 dmacfg = READ_REG_1(sc, HIFN_1_DMA_CNFG); 929 930 /* 931 * The RAM config register's encrypt level bit needs to be set before 932 * every read performed on the encryption level register. 933 */ 934 WRITE_REG_0(sc, HIFN_0_PUCNFG, ramcfg | HIFN_PUCNFG_CHIPID); 935 936 encl = READ_REG_0(sc, HIFN_0_PUSTAT) & HIFN_PUSTAT_CHIPENA; 937 938 /* 939 * Make sure we don't re-unlock. Two unlocks kills chip until the 940 * next reboot. 941 */ 942 if (encl == HIFN_PUSTAT_ENA_1 || encl == HIFN_PUSTAT_ENA_2) { 943 #ifdef HIFN_DEBUG 944 if (hifn_debug) 945 device_printf(sc->sc_dev, 946 "Strong crypto already enabled!\n"); 947 #endif 948 goto report; 949 } 950 951 if (encl != 0 && encl != HIFN_PUSTAT_ENA_0) { 952 #ifdef HIFN_DEBUG 953 if (hifn_debug) 954 device_printf(sc->sc_dev, 955 "Unknown encryption level 0x%x\n", encl); 956 #endif 957 return 1; 958 } 959 960 WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_UNLOCK | 961 HIFN_DMACNFG_MSTRESET | HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE); 962 DELAY(1000); 963 addr = READ_REG_1(sc, HIFN_UNLOCK_SECRET1); 964 DELAY(1000); 965 WRITE_REG_1(sc, HIFN_UNLOCK_SECRET2, 0); 966 DELAY(1000); 967 968 for (i = 0; i <= 12; i++) { 969 addr = hifn_next_signature(addr, offtbl[i] + 0x101); 970 WRITE_REG_1(sc, HIFN_UNLOCK_SECRET2, addr); 971 972 DELAY(1000); 973 } 974 975 WRITE_REG_0(sc, HIFN_0_PUCNFG, ramcfg | HIFN_PUCNFG_CHIPID); 976 encl = READ_REG_0(sc, HIFN_0_PUSTAT) & HIFN_PUSTAT_CHIPENA; 977 978 #ifdef HIFN_DEBUG 979 if (hifn_debug) { 980 if (encl != HIFN_PUSTAT_ENA_1 && encl != HIFN_PUSTAT_ENA_2) 981 device_printf(sc->sc_dev, "Engine is permanently " 982 "locked until next system reset!\n"); 983 else 984 device_printf(sc->sc_dev, "Engine enabled " 985 "successfully!\n"); 986 } 987 #endif 988 989 report: 990 WRITE_REG_0(sc, HIFN_0_PUCNFG, ramcfg); 991 WRITE_REG_1(sc, HIFN_1_DMA_CNFG, dmacfg); 992 993 switch (encl) { 994 case HIFN_PUSTAT_ENA_1: 995 case HIFN_PUSTAT_ENA_2: 996 break; 997 case HIFN_PUSTAT_ENA_0: 998 default: 999 device_printf(sc->sc_dev, "disabled"); 1000 break; 1001 } 1002 1003 return 0; 1004 } 1005 1006 /* 1007 * Give initial values to the registers listed in the "Register Space" 1008 * section of the HIFN Software Development reference manual. 1009 */ 1010 static void 1011 hifn_init_pci_registers(struct hifn_softc *sc) 1012 { 1013 /* write fixed values needed by the Initialization registers */ 1014 WRITE_REG_0(sc, HIFN_0_PUCTRL, HIFN_PUCTRL_DMAENA); 1015 WRITE_REG_0(sc, HIFN_0_FIFOCNFG, HIFN_FIFOCNFG_THRESHOLD); 1016 WRITE_REG_0(sc, HIFN_0_PUIER, HIFN_PUIER_DSTOVER); 1017 1018 /* write all 4 ring address registers */ 1019 WRITE_REG_1(sc, HIFN_1_DMA_CRAR, sc->sc_dma_physaddr + 1020 offsetof(struct hifn_dma, cmdr[0])); 1021 WRITE_REG_1(sc, HIFN_1_DMA_SRAR, sc->sc_dma_physaddr + 1022 offsetof(struct hifn_dma, srcr[0])); 1023 WRITE_REG_1(sc, HIFN_1_DMA_DRAR, sc->sc_dma_physaddr + 1024 offsetof(struct hifn_dma, dstr[0])); 1025 WRITE_REG_1(sc, HIFN_1_DMA_RRAR, sc->sc_dma_physaddr + 1026 offsetof(struct hifn_dma, resr[0])); 1027 1028 DELAY(2000); 1029 1030 /* write status register */ 1031 WRITE_REG_1(sc, HIFN_1_DMA_CSR, 1032 HIFN_DMACSR_D_CTRL_DIS | HIFN_DMACSR_R_CTRL_DIS | 1033 HIFN_DMACSR_S_CTRL_DIS | HIFN_DMACSR_C_CTRL_DIS | 1034 HIFN_DMACSR_D_ABORT | HIFN_DMACSR_D_DONE | HIFN_DMACSR_D_LAST | 1035 HIFN_DMACSR_D_WAIT | HIFN_DMACSR_D_OVER | 1036 HIFN_DMACSR_R_ABORT | HIFN_DMACSR_R_DONE | HIFN_DMACSR_R_LAST | 1037 HIFN_DMACSR_R_WAIT | HIFN_DMACSR_R_OVER | 1038 HIFN_DMACSR_S_ABORT | HIFN_DMACSR_S_DONE | HIFN_DMACSR_S_LAST | 1039 HIFN_DMACSR_S_WAIT | 1040 HIFN_DMACSR_C_ABORT | HIFN_DMACSR_C_DONE | HIFN_DMACSR_C_LAST | 1041 HIFN_DMACSR_C_WAIT | 1042 HIFN_DMACSR_ENGINE | 1043 ((sc->sc_flags & HIFN_HAS_PUBLIC) ? 1044 HIFN_DMACSR_PUBDONE : 0) | 1045 ((sc->sc_flags & HIFN_IS_7811) ? 1046 HIFN_DMACSR_ILLW | HIFN_DMACSR_ILLR : 0)); 1047 1048 sc->sc_d_busy = sc->sc_r_busy = sc->sc_s_busy = sc->sc_c_busy = 0; 1049 sc->sc_dmaier |= HIFN_DMAIER_R_DONE | HIFN_DMAIER_C_ABORT | 1050 HIFN_DMAIER_D_OVER | HIFN_DMAIER_R_OVER | 1051 HIFN_DMAIER_S_ABORT | HIFN_DMAIER_D_ABORT | HIFN_DMAIER_R_ABORT | 1052 ((sc->sc_flags & HIFN_IS_7811) ? 1053 HIFN_DMAIER_ILLW | HIFN_DMAIER_ILLR : 0); 1054 sc->sc_dmaier &= ~HIFN_DMAIER_C_WAIT; 1055 WRITE_REG_1(sc, HIFN_1_DMA_IER, sc->sc_dmaier); 1056 1057 WRITE_REG_0(sc, HIFN_0_PUCNFG, HIFN_PUCNFG_COMPSING | 1058 HIFN_PUCNFG_DRFR_128 | HIFN_PUCNFG_TCALLPHASES | 1059 HIFN_PUCNFG_TCDRVTOTEM | HIFN_PUCNFG_BUS32 | 1060 (sc->sc_drammodel ? HIFN_PUCNFG_DRAM : HIFN_PUCNFG_SRAM)); 1061 1062 WRITE_REG_0(sc, HIFN_0_PUISR, HIFN_PUISR_DSTOVER); 1063 WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET | 1064 HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE | HIFN_DMACNFG_LAST | 1065 ((HIFN_POLL_FREQUENCY << 16 ) & HIFN_DMACNFG_POLLFREQ) | 1066 ((HIFN_POLL_SCALAR << 8) & HIFN_DMACNFG_POLLINVAL)); 1067 } 1068 1069 /* 1070 * The maximum number of sessions supported by the card 1071 * is dependent on the amount of context ram, which 1072 * encryption algorithms are enabled, and how compression 1073 * is configured. This should be configured before this 1074 * routine is called. 1075 */ 1076 static void 1077 hifn_sessions(struct hifn_softc *sc) 1078 { 1079 u_int32_t pucnfg; 1080 int ctxsize; 1081 1082 pucnfg = READ_REG_0(sc, HIFN_0_PUCNFG); 1083 1084 if (pucnfg & HIFN_PUCNFG_COMPSING) { 1085 if (pucnfg & HIFN_PUCNFG_ENCCNFG) 1086 ctxsize = 128; 1087 else 1088 ctxsize = 512; 1089 sc->sc_maxses = 1 + 1090 ((sc->sc_ramsize - 32768) / ctxsize); 1091 } else 1092 sc->sc_maxses = sc->sc_ramsize / 16384; 1093 1094 if (sc->sc_maxses > 2048) 1095 sc->sc_maxses = 2048; 1096 } 1097 1098 /* 1099 * Determine ram type (sram or dram). Board should be just out of a reset 1100 * state when this is called. 1101 */ 1102 static int 1103 hifn_ramtype(struct hifn_softc *sc) 1104 { 1105 u_int8_t data[8], dataexpect[8]; 1106 int i; 1107 1108 for (i = 0; i < sizeof(data); i++) 1109 data[i] = dataexpect[i] = 0x55; 1110 if (hifn_writeramaddr(sc, 0, data)) 1111 return (-1); 1112 if (hifn_readramaddr(sc, 0, data)) 1113 return (-1); 1114 if (bcmp(data, dataexpect, sizeof(data)) != 0) { 1115 sc->sc_drammodel = 1; 1116 return (0); 1117 } 1118 1119 for (i = 0; i < sizeof(data); i++) 1120 data[i] = dataexpect[i] = 0xaa; 1121 if (hifn_writeramaddr(sc, 0, data)) 1122 return (-1); 1123 if (hifn_readramaddr(sc, 0, data)) 1124 return (-1); 1125 if (bcmp(data, dataexpect, sizeof(data)) != 0) { 1126 sc->sc_drammodel = 1; 1127 return (0); 1128 } 1129 1130 return (0); 1131 } 1132 1133 #define HIFN_SRAM_MAX (32 << 20) 1134 #define HIFN_SRAM_STEP_SIZE 16384 1135 #define HIFN_SRAM_GRANULARITY (HIFN_SRAM_MAX / HIFN_SRAM_STEP_SIZE) 1136 1137 static int 1138 hifn_sramsize(struct hifn_softc *sc) 1139 { 1140 u_int32_t a; 1141 u_int8_t data[8]; 1142 u_int8_t dataexpect[sizeof(data)]; 1143 int32_t i; 1144 1145 for (i = 0; i < sizeof(data); i++) 1146 data[i] = dataexpect[i] = i ^ 0x5a; 1147 1148 for (i = HIFN_SRAM_GRANULARITY - 1; i >= 0; i--) { 1149 a = i * HIFN_SRAM_STEP_SIZE; 1150 bcopy(&i, data, sizeof(i)); 1151 hifn_writeramaddr(sc, a, data); 1152 } 1153 1154 for (i = 0; i < HIFN_SRAM_GRANULARITY; i++) { 1155 a = i * HIFN_SRAM_STEP_SIZE; 1156 bcopy(&i, dataexpect, sizeof(i)); 1157 if (hifn_readramaddr(sc, a, data) < 0) 1158 return (0); 1159 if (bcmp(data, dataexpect, sizeof(data)) != 0) 1160 return (0); 1161 sc->sc_ramsize = a + HIFN_SRAM_STEP_SIZE; 1162 } 1163 1164 return (0); 1165 } 1166 1167 /* 1168 * XXX For dram boards, one should really try all of the 1169 * HIFN_PUCNFG_DSZ_*'s. This just assumes that PUCNFG 1170 * is already set up correctly. 1171 */ 1172 static int 1173 hifn_dramsize(struct hifn_softc *sc) 1174 { 1175 u_int32_t cnfg; 1176 1177 cnfg = READ_REG_0(sc, HIFN_0_PUCNFG) & 1178 HIFN_PUCNFG_DRAMMASK; 1179 sc->sc_ramsize = 1 << ((cnfg >> 13) + 18); 1180 return (0); 1181 } 1182 1183 static void 1184 hifn_alloc_slot(struct hifn_softc *sc, int *cmdp, int *srcp, int *dstp, int *resp) 1185 { 1186 struct hifn_dma *dma = sc->sc_dma; 1187 1188 if (dma->cmdi == HIFN_D_CMD_RSIZE) { 1189 dma->cmdi = 0; 1190 dma->cmdr[HIFN_D_CMD_RSIZE].l = htole32(HIFN_D_VALID | 1191 HIFN_D_JUMP | HIFN_D_MASKDONEIRQ); 1192 HIFN_CMDR_SYNC(sc, HIFN_D_CMD_RSIZE, 1193 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1194 } 1195 *cmdp = dma->cmdi++; 1196 dma->cmdk = dma->cmdi; 1197 1198 if (dma->srci == HIFN_D_SRC_RSIZE) { 1199 dma->srci = 0; 1200 dma->srcr[HIFN_D_SRC_RSIZE].l = htole32(HIFN_D_VALID | 1201 HIFN_D_JUMP | HIFN_D_MASKDONEIRQ); 1202 HIFN_SRCR_SYNC(sc, HIFN_D_SRC_RSIZE, 1203 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1204 } 1205 *srcp = dma->srci++; 1206 dma->srck = dma->srci; 1207 1208 if (dma->dsti == HIFN_D_DST_RSIZE) { 1209 dma->dsti = 0; 1210 dma->dstr[HIFN_D_DST_RSIZE].l = htole32(HIFN_D_VALID | 1211 HIFN_D_JUMP | HIFN_D_MASKDONEIRQ); 1212 HIFN_DSTR_SYNC(sc, HIFN_D_DST_RSIZE, 1213 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1214 } 1215 *dstp = dma->dsti++; 1216 dma->dstk = dma->dsti; 1217 1218 if (dma->resi == HIFN_D_RES_RSIZE) { 1219 dma->resi = 0; 1220 dma->resr[HIFN_D_RES_RSIZE].l = htole32(HIFN_D_VALID | 1221 HIFN_D_JUMP | HIFN_D_MASKDONEIRQ); 1222 HIFN_RESR_SYNC(sc, HIFN_D_RES_RSIZE, 1223 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1224 } 1225 *resp = dma->resi++; 1226 dma->resk = dma->resi; 1227 } 1228 1229 static int 1230 hifn_writeramaddr(struct hifn_softc *sc, int addr, u_int8_t *data) 1231 { 1232 struct hifn_dma *dma = sc->sc_dma; 1233 hifn_base_command_t wc; 1234 const u_int32_t masks = HIFN_D_VALID | HIFN_D_LAST | HIFN_D_MASKDONEIRQ; 1235 int r, cmdi, resi, srci, dsti; 1236 1237 wc.masks = htole16(3 << 13); 1238 wc.session_num = htole16(addr >> 14); 1239 wc.total_source_count = htole16(8); 1240 wc.total_dest_count = htole16(addr & 0x3fff); 1241 1242 hifn_alloc_slot(sc, &cmdi, &srci, &dsti, &resi); 1243 1244 WRITE_REG_1(sc, HIFN_1_DMA_CSR, 1245 HIFN_DMACSR_C_CTRL_ENA | HIFN_DMACSR_S_CTRL_ENA | 1246 HIFN_DMACSR_D_CTRL_ENA | HIFN_DMACSR_R_CTRL_ENA); 1247 1248 /* build write command */ 1249 bzero(dma->command_bufs[cmdi], HIFN_MAX_COMMAND); 1250 *(hifn_base_command_t *)dma->command_bufs[cmdi] = wc; 1251 bcopy(data, &dma->test_src, sizeof(dma->test_src)); 1252 1253 dma->srcr[srci].p = htole32(sc->sc_dma_physaddr 1254 + offsetof(struct hifn_dma, test_src)); 1255 dma->dstr[dsti].p = htole32(sc->sc_dma_physaddr 1256 + offsetof(struct hifn_dma, test_dst)); 1257 1258 dma->cmdr[cmdi].l = htole32(16 | masks); 1259 dma->srcr[srci].l = htole32(8 | masks); 1260 dma->dstr[dsti].l = htole32(4 | masks); 1261 dma->resr[resi].l = htole32(4 | masks); 1262 1263 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 1264 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1265 1266 for (r = 10000; r >= 0; r--) { 1267 DELAY(10); 1268 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 1269 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1270 if ((dma->resr[resi].l & htole32(HIFN_D_VALID)) == 0) 1271 break; 1272 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 1273 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1274 } 1275 if (r == 0) { 1276 device_printf(sc->sc_dev, "writeramaddr -- " 1277 "result[%d](addr %d) still valid\n", resi, addr); 1278 r = -1; 1279 return (-1); 1280 } else 1281 r = 0; 1282 1283 WRITE_REG_1(sc, HIFN_1_DMA_CSR, 1284 HIFN_DMACSR_C_CTRL_DIS | HIFN_DMACSR_S_CTRL_DIS | 1285 HIFN_DMACSR_D_CTRL_DIS | HIFN_DMACSR_R_CTRL_DIS); 1286 1287 return (r); 1288 } 1289 1290 static int 1291 hifn_readramaddr(struct hifn_softc *sc, int addr, u_int8_t *data) 1292 { 1293 struct hifn_dma *dma = sc->sc_dma; 1294 hifn_base_command_t rc; 1295 const u_int32_t masks = HIFN_D_VALID | HIFN_D_LAST | HIFN_D_MASKDONEIRQ; 1296 int r, cmdi, srci, dsti, resi; 1297 1298 rc.masks = htole16(2 << 13); 1299 rc.session_num = htole16(addr >> 14); 1300 rc.total_source_count = htole16(addr & 0x3fff); 1301 rc.total_dest_count = htole16(8); 1302 1303 hifn_alloc_slot(sc, &cmdi, &srci, &dsti, &resi); 1304 1305 WRITE_REG_1(sc, HIFN_1_DMA_CSR, 1306 HIFN_DMACSR_C_CTRL_ENA | HIFN_DMACSR_S_CTRL_ENA | 1307 HIFN_DMACSR_D_CTRL_ENA | HIFN_DMACSR_R_CTRL_ENA); 1308 1309 bzero(dma->command_bufs[cmdi], HIFN_MAX_COMMAND); 1310 *(hifn_base_command_t *)dma->command_bufs[cmdi] = rc; 1311 1312 dma->srcr[srci].p = htole32(sc->sc_dma_physaddr + 1313 offsetof(struct hifn_dma, test_src)); 1314 dma->test_src = 0; 1315 dma->dstr[dsti].p = htole32(sc->sc_dma_physaddr + 1316 offsetof(struct hifn_dma, test_dst)); 1317 dma->test_dst = 0; 1318 dma->cmdr[cmdi].l = htole32(8 | masks); 1319 dma->srcr[srci].l = htole32(8 | masks); 1320 dma->dstr[dsti].l = htole32(8 | masks); 1321 dma->resr[resi].l = htole32(HIFN_MAX_RESULT | masks); 1322 1323 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 1324 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1325 1326 for (r = 10000; r >= 0; r--) { 1327 DELAY(10); 1328 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 1329 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1330 if ((dma->resr[resi].l & htole32(HIFN_D_VALID)) == 0) 1331 break; 1332 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 1333 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1334 } 1335 if (r == 0) { 1336 device_printf(sc->sc_dev, "readramaddr -- " 1337 "result[%d](addr %d) still valid\n", resi, addr); 1338 r = -1; 1339 } else { 1340 r = 0; 1341 bcopy(&dma->test_dst, data, sizeof(dma->test_dst)); 1342 } 1343 1344 WRITE_REG_1(sc, HIFN_1_DMA_CSR, 1345 HIFN_DMACSR_C_CTRL_DIS | HIFN_DMACSR_S_CTRL_DIS | 1346 HIFN_DMACSR_D_CTRL_DIS | HIFN_DMACSR_R_CTRL_DIS); 1347 1348 return (r); 1349 } 1350 1351 /* 1352 * Initialize the descriptor rings. 1353 */ 1354 static void 1355 hifn_init_dma(struct hifn_softc *sc) 1356 { 1357 struct hifn_dma *dma = sc->sc_dma; 1358 int i; 1359 1360 hifn_set_retry(sc); 1361 1362 /* initialize static pointer values */ 1363 for (i = 0; i < HIFN_D_CMD_RSIZE; i++) 1364 dma->cmdr[i].p = htole32(sc->sc_dma_physaddr + 1365 offsetof(struct hifn_dma, command_bufs[i][0])); 1366 for (i = 0; i < HIFN_D_RES_RSIZE; i++) 1367 dma->resr[i].p = htole32(sc->sc_dma_physaddr + 1368 offsetof(struct hifn_dma, result_bufs[i][0])); 1369 1370 dma->cmdr[HIFN_D_CMD_RSIZE].p = 1371 htole32(sc->sc_dma_physaddr + offsetof(struct hifn_dma, cmdr[0])); 1372 dma->srcr[HIFN_D_SRC_RSIZE].p = 1373 htole32(sc->sc_dma_physaddr + offsetof(struct hifn_dma, srcr[0])); 1374 dma->dstr[HIFN_D_DST_RSIZE].p = 1375 htole32(sc->sc_dma_physaddr + offsetof(struct hifn_dma, dstr[0])); 1376 dma->resr[HIFN_D_RES_RSIZE].p = 1377 htole32(sc->sc_dma_physaddr + offsetof(struct hifn_dma, resr[0])); 1378 1379 dma->cmdu = dma->srcu = dma->dstu = dma->resu = 0; 1380 dma->cmdi = dma->srci = dma->dsti = dma->resi = 0; 1381 dma->cmdk = dma->srck = dma->dstk = dma->resk = 0; 1382 } 1383 1384 /* 1385 * Writes out the raw command buffer space. Returns the 1386 * command buffer size. 1387 */ 1388 static u_int 1389 hifn_write_command(struct hifn_command *cmd, u_int8_t *buf) 1390 { 1391 u_int8_t *buf_pos; 1392 hifn_base_command_t *base_cmd; 1393 hifn_mac_command_t *mac_cmd; 1394 hifn_crypt_command_t *cry_cmd; 1395 int using_mac, using_crypt, len; 1396 u_int32_t dlen, slen; 1397 1398 buf_pos = buf; 1399 using_mac = cmd->base_masks & HIFN_BASE_CMD_MAC; 1400 using_crypt = cmd->base_masks & HIFN_BASE_CMD_CRYPT; 1401 1402 base_cmd = (hifn_base_command_t *)buf_pos; 1403 base_cmd->masks = htole16(cmd->base_masks); 1404 slen = cmd->src_mapsize; 1405 if (cmd->sloplen) 1406 dlen = cmd->dst_mapsize - cmd->sloplen + sizeof(u_int32_t); 1407 else 1408 dlen = cmd->dst_mapsize; 1409 base_cmd->total_source_count = htole16(slen & HIFN_BASE_CMD_LENMASK_LO); 1410 base_cmd->total_dest_count = htole16(dlen & HIFN_BASE_CMD_LENMASK_LO); 1411 dlen >>= 16; 1412 slen >>= 16; 1413 base_cmd->session_num = htole16(cmd->session_num | 1414 ((slen << HIFN_BASE_CMD_SRCLEN_S) & HIFN_BASE_CMD_SRCLEN_M) | 1415 ((dlen << HIFN_BASE_CMD_DSTLEN_S) & HIFN_BASE_CMD_DSTLEN_M)); 1416 buf_pos += sizeof(hifn_base_command_t); 1417 1418 if (using_mac) { 1419 mac_cmd = (hifn_mac_command_t *)buf_pos; 1420 dlen = cmd->maccrd->crd_len; 1421 mac_cmd->source_count = htole16(dlen & 0xffff); 1422 dlen >>= 16; 1423 mac_cmd->masks = htole16(cmd->mac_masks | 1424 ((dlen << HIFN_MAC_CMD_SRCLEN_S) & HIFN_MAC_CMD_SRCLEN_M)); 1425 mac_cmd->header_skip = htole16(cmd->maccrd->crd_skip); 1426 mac_cmd->reserved = 0; 1427 buf_pos += sizeof(hifn_mac_command_t); 1428 } 1429 1430 if (using_crypt) { 1431 cry_cmd = (hifn_crypt_command_t *)buf_pos; 1432 dlen = cmd->enccrd->crd_len; 1433 cry_cmd->source_count = htole16(dlen & 0xffff); 1434 dlen >>= 16; 1435 cry_cmd->masks = htole16(cmd->cry_masks | 1436 ((dlen << HIFN_CRYPT_CMD_SRCLEN_S) & HIFN_CRYPT_CMD_SRCLEN_M)); 1437 cry_cmd->header_skip = htole16(cmd->enccrd->crd_skip); 1438 cry_cmd->reserved = 0; 1439 buf_pos += sizeof(hifn_crypt_command_t); 1440 } 1441 1442 if (using_mac && cmd->mac_masks & HIFN_MAC_CMD_NEW_KEY) { 1443 bcopy(cmd->mac, buf_pos, HIFN_MAC_KEY_LENGTH); 1444 buf_pos += HIFN_MAC_KEY_LENGTH; 1445 } 1446 1447 if (using_crypt && cmd->cry_masks & HIFN_CRYPT_CMD_NEW_KEY) { 1448 switch (cmd->cry_masks & HIFN_CRYPT_CMD_ALG_MASK) { 1449 case HIFN_CRYPT_CMD_ALG_3DES: 1450 bcopy(cmd->ck, buf_pos, HIFN_3DES_KEY_LENGTH); 1451 buf_pos += HIFN_3DES_KEY_LENGTH; 1452 break; 1453 case HIFN_CRYPT_CMD_ALG_DES: 1454 bcopy(cmd->ck, buf_pos, HIFN_DES_KEY_LENGTH); 1455 buf_pos += cmd->cklen; 1456 break; 1457 case HIFN_CRYPT_CMD_ALG_RC4: 1458 len = 256; 1459 do { 1460 int clen; 1461 1462 clen = MIN(cmd->cklen, len); 1463 bcopy(cmd->ck, buf_pos, clen); 1464 len -= clen; 1465 buf_pos += clen; 1466 } while (len > 0); 1467 bzero(buf_pos, 4); 1468 buf_pos += 4; 1469 break; 1470 } 1471 } 1472 1473 if (using_crypt && cmd->cry_masks & HIFN_CRYPT_CMD_NEW_IV) { 1474 bcopy(cmd->iv, buf_pos, HIFN_IV_LENGTH); 1475 buf_pos += HIFN_IV_LENGTH; 1476 } 1477 1478 if ((cmd->base_masks & (HIFN_BASE_CMD_MAC|HIFN_BASE_CMD_CRYPT)) == 0) { 1479 bzero(buf_pos, 8); 1480 buf_pos += 8; 1481 } 1482 1483 return (buf_pos - buf); 1484 } 1485 1486 static int 1487 hifn_dmamap_aligned(struct hifn_operand *op) 1488 { 1489 int i; 1490 1491 for (i = 0; i < op->nsegs; i++) { 1492 if (op->segs[i].ds_addr & 3) 1493 return (0); 1494 if ((i != (op->nsegs - 1)) && (op->segs[i].ds_len & 3)) 1495 return (0); 1496 } 1497 return (1); 1498 } 1499 1500 static int 1501 hifn_dmamap_load_dst(struct hifn_softc *sc, struct hifn_command *cmd) 1502 { 1503 struct hifn_dma *dma = sc->sc_dma; 1504 struct hifn_operand *dst = &cmd->dst; 1505 u_int32_t p, l; 1506 int idx, used = 0, i; 1507 1508 idx = dma->dsti; 1509 for (i = 0; i < dst->nsegs - 1; i++) { 1510 dma->dstr[idx].p = htole32(dst->segs[i].ds_addr); 1511 dma->dstr[idx].l = htole32(HIFN_D_VALID | 1512 HIFN_D_MASKDONEIRQ | dst->segs[i].ds_len); 1513 HIFN_DSTR_SYNC(sc, idx, 1514 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1515 used++; 1516 1517 if (++idx == HIFN_D_DST_RSIZE) { 1518 dma->dstr[idx].l = htole32(HIFN_D_VALID | 1519 HIFN_D_JUMP | HIFN_D_MASKDONEIRQ); 1520 HIFN_DSTR_SYNC(sc, idx, 1521 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1522 idx = 0; 1523 } 1524 } 1525 1526 if (cmd->sloplen == 0) { 1527 p = dst->segs[i].ds_addr; 1528 l = HIFN_D_VALID | HIFN_D_MASKDONEIRQ | HIFN_D_LAST | 1529 dst->segs[i].ds_len; 1530 } else { 1531 p = sc->sc_dma_physaddr + 1532 offsetof(struct hifn_dma, slop[cmd->slopidx]); 1533 l = HIFN_D_VALID | HIFN_D_MASKDONEIRQ | HIFN_D_LAST | 1534 sizeof(u_int32_t); 1535 1536 if ((dst->segs[i].ds_len - cmd->sloplen) != 0) { 1537 dma->dstr[idx].p = htole32(dst->segs[i].ds_addr); 1538 dma->dstr[idx].l = htole32(HIFN_D_VALID | 1539 HIFN_D_MASKDONEIRQ | 1540 (dst->segs[i].ds_len - cmd->sloplen)); 1541 HIFN_DSTR_SYNC(sc, idx, 1542 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1543 used++; 1544 1545 if (++idx == HIFN_D_DST_RSIZE) { 1546 dma->dstr[idx].l = htole32(HIFN_D_VALID | 1547 HIFN_D_JUMP | HIFN_D_MASKDONEIRQ); 1548 HIFN_DSTR_SYNC(sc, idx, 1549 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1550 idx = 0; 1551 } 1552 } 1553 } 1554 dma->dstr[idx].p = htole32(p); 1555 dma->dstr[idx].l = htole32(l); 1556 HIFN_DSTR_SYNC(sc, idx, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1557 used++; 1558 1559 if (++idx == HIFN_D_DST_RSIZE) { 1560 dma->dstr[idx].l = htole32(HIFN_D_VALID | HIFN_D_JUMP | 1561 HIFN_D_MASKDONEIRQ); 1562 HIFN_DSTR_SYNC(sc, idx, 1563 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1564 idx = 0; 1565 } 1566 1567 dma->dsti = idx; 1568 dma->dstu += used; 1569 return (idx); 1570 } 1571 1572 static int 1573 hifn_dmamap_load_src(struct hifn_softc *sc, struct hifn_command *cmd) 1574 { 1575 struct hifn_dma *dma = sc->sc_dma; 1576 struct hifn_operand *src = &cmd->src; 1577 int idx, i; 1578 u_int32_t last = 0; 1579 1580 idx = dma->srci; 1581 for (i = 0; i < src->nsegs; i++) { 1582 if (i == src->nsegs - 1) 1583 last = HIFN_D_LAST; 1584 1585 dma->srcr[idx].p = htole32(src->segs[i].ds_addr); 1586 dma->srcr[idx].l = htole32(src->segs[i].ds_len | 1587 HIFN_D_VALID | HIFN_D_MASKDONEIRQ | last); 1588 HIFN_SRCR_SYNC(sc, idx, 1589 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1590 1591 if (++idx == HIFN_D_SRC_RSIZE) { 1592 dma->srcr[idx].l = htole32(HIFN_D_VALID | 1593 HIFN_D_JUMP | HIFN_D_MASKDONEIRQ); 1594 HIFN_SRCR_SYNC(sc, HIFN_D_SRC_RSIZE, 1595 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1596 idx = 0; 1597 } 1598 } 1599 dma->srci = idx; 1600 dma->srcu += src->nsegs; 1601 return (idx); 1602 } 1603 1604 static void 1605 hifn_op_cb(void* arg, bus_dma_segment_t *seg, int nsegs, bus_size_t mapsize, int error) 1606 { 1607 struct hifn_operand *op = arg; 1608 1609 KASSERT(nsegs <= MAX_SCATTER, 1610 ("hifn_op_cb: too many DMA segments (%u > %u) " 1611 "returned when mapping operand", nsegs, MAX_SCATTER)); 1612 op->mapsize = mapsize; 1613 op->nsegs = nsegs; 1614 bcopy(seg, op->segs, nsegs * sizeof (seg[0])); 1615 } 1616 1617 static int 1618 hifn_crypto( 1619 struct hifn_softc *sc, 1620 struct hifn_command *cmd, 1621 struct cryptop *crp, 1622 int hint) 1623 { 1624 struct hifn_dma *dma = sc->sc_dma; 1625 u_int32_t cmdlen; 1626 int cmdi, resi, err = 0; 1627 1628 /* 1629 * need 1 cmd, and 1 res 1630 * 1631 * NB: check this first since it's easy. 1632 */ 1633 HIFN_LOCK(sc); 1634 if ((dma->cmdu + 1) > HIFN_D_CMD_RSIZE || 1635 (dma->resu + 1) > HIFN_D_RES_RSIZE) { 1636 #ifdef HIFN_DEBUG 1637 if (hifn_debug) { 1638 device_printf(sc->sc_dev, 1639 "cmd/result exhaustion, cmdu %u resu %u\n", 1640 dma->cmdu, dma->resu); 1641 } 1642 #endif 1643 hifnstats.hst_nomem_cr++; 1644 HIFN_UNLOCK(sc); 1645 return (ERESTART); 1646 } 1647 1648 if (bus_dmamap_create(sc->sc_dmat, BUS_DMA_NOWAIT, &cmd->src_map)) { 1649 hifnstats.hst_nomem_map++; 1650 HIFN_UNLOCK(sc); 1651 return (ENOMEM); 1652 } 1653 1654 if (crp->crp_flags & CRYPTO_F_IMBUF) { 1655 if (bus_dmamap_load_mbuf(sc->sc_dmat, cmd->src_map, 1656 cmd->src_m, hifn_op_cb, &cmd->src, BUS_DMA_NOWAIT)) { 1657 hifnstats.hst_nomem_load++; 1658 err = ENOMEM; 1659 goto err_srcmap1; 1660 } 1661 } else if (crp->crp_flags & CRYPTO_F_IOV) { 1662 if (bus_dmamap_load_uio(sc->sc_dmat, cmd->src_map, 1663 cmd->src_io, hifn_op_cb, &cmd->src, BUS_DMA_NOWAIT)) { 1664 hifnstats.hst_nomem_load++; 1665 err = ENOMEM; 1666 goto err_srcmap1; 1667 } 1668 } else { 1669 err = EINVAL; 1670 goto err_srcmap1; 1671 } 1672 1673 if (hifn_dmamap_aligned(&cmd->src)) { 1674 cmd->sloplen = cmd->src_mapsize & 3; 1675 cmd->dst = cmd->src; 1676 } else { 1677 if (crp->crp_flags & CRYPTO_F_IOV) { 1678 err = EINVAL; 1679 goto err_srcmap; 1680 } else if (crp->crp_flags & CRYPTO_F_IMBUF) { 1681 int totlen, len; 1682 struct mbuf *m, *m0, *mlast; 1683 1684 KASSERT(cmd->dst_m == cmd->src_m, 1685 ("hifn_crypto: dst_m initialized improperly")); 1686 hifnstats.hst_unaligned++; 1687 /* 1688 * Source is not aligned on a longword boundary. 1689 * Copy the data to insure alignment. If we fail 1690 * to allocate mbufs or clusters while doing this 1691 * we return ERESTART so the operation is requeued 1692 * at the crypto later, but only if there are 1693 * ops already posted to the hardware; otherwise we 1694 * have no guarantee that we'll be re-entered. 1695 */ 1696 totlen = cmd->src_mapsize; 1697 if (cmd->src_m->m_flags & M_PKTHDR) { 1698 len = MHLEN; 1699 MGETHDR(m0, M_DONTWAIT, MT_DATA); 1700 if (m0 && !m_dup_pkthdr(m0, cmd->src_m, M_DONTWAIT)) { 1701 m_free(m0); 1702 m0 = NULL; 1703 } 1704 } else { 1705 len = MLEN; 1706 MGET(m0, M_DONTWAIT, MT_DATA); 1707 } 1708 if (m0 == NULL) { 1709 hifnstats.hst_nomem_mbuf++; 1710 err = dma->cmdu ? ERESTART : ENOMEM; 1711 goto err_srcmap; 1712 } 1713 if (totlen >= MINCLSIZE) { 1714 MCLGET(m0, M_DONTWAIT); 1715 if ((m0->m_flags & M_EXT) == 0) { 1716 hifnstats.hst_nomem_mcl++; 1717 err = dma->cmdu ? ERESTART : ENOMEM; 1718 m_freem(m0); 1719 goto err_srcmap; 1720 } 1721 len = MCLBYTES; 1722 } 1723 totlen -= len; 1724 m0->m_pkthdr.len = m0->m_len = len; 1725 mlast = m0; 1726 1727 while (totlen > 0) { 1728 MGET(m, M_DONTWAIT, MT_DATA); 1729 if (m == NULL) { 1730 hifnstats.hst_nomem_mbuf++; 1731 err = dma->cmdu ? ERESTART : ENOMEM; 1732 m_freem(m0); 1733 goto err_srcmap; 1734 } 1735 len = MLEN; 1736 if (totlen >= MINCLSIZE) { 1737 MCLGET(m, M_DONTWAIT); 1738 if ((m->m_flags & M_EXT) == 0) { 1739 hifnstats.hst_nomem_mcl++; 1740 err = dma->cmdu ? ERESTART : ENOMEM; 1741 mlast->m_next = m; 1742 m_freem(m0); 1743 goto err_srcmap; 1744 } 1745 len = MCLBYTES; 1746 } 1747 1748 m->m_len = len; 1749 m0->m_pkthdr.len += len; 1750 totlen -= len; 1751 1752 mlast->m_next = m; 1753 mlast = m; 1754 } 1755 cmd->dst_m = m0; 1756 } 1757 } 1758 1759 if (cmd->dst_map == NULL) { 1760 if (bus_dmamap_create(sc->sc_dmat, BUS_DMA_NOWAIT, &cmd->dst_map)) { 1761 hifnstats.hst_nomem_map++; 1762 err = ENOMEM; 1763 goto err_srcmap; 1764 } 1765 if (crp->crp_flags & CRYPTO_F_IMBUF) { 1766 if (bus_dmamap_load_mbuf(sc->sc_dmat, cmd->dst_map, 1767 cmd->dst_m, hifn_op_cb, &cmd->dst, BUS_DMA_NOWAIT)) { 1768 hifnstats.hst_nomem_map++; 1769 err = ENOMEM; 1770 goto err_dstmap1; 1771 } 1772 } else if (crp->crp_flags & CRYPTO_F_IOV) { 1773 if (bus_dmamap_load_uio(sc->sc_dmat, cmd->dst_map, 1774 cmd->dst_io, hifn_op_cb, &cmd->dst, BUS_DMA_NOWAIT)) { 1775 hifnstats.hst_nomem_load++; 1776 err = ENOMEM; 1777 goto err_dstmap1; 1778 } 1779 } 1780 } 1781 1782 #ifdef HIFN_DEBUG 1783 if (hifn_debug) { 1784 device_printf(sc->sc_dev, 1785 "Entering cmd: stat %8x ien %8x u %d/%d/%d/%d n %d/%d\n", 1786 READ_REG_1(sc, HIFN_1_DMA_CSR), 1787 READ_REG_1(sc, HIFN_1_DMA_IER), 1788 dma->cmdu, dma->srcu, dma->dstu, dma->resu, 1789 cmd->src_nsegs, cmd->dst_nsegs); 1790 } 1791 #endif 1792 1793 if (cmd->src_map == cmd->dst_map) { 1794 bus_dmamap_sync(sc->sc_dmat, cmd->src_map, 1795 BUS_DMASYNC_PREWRITE|BUS_DMASYNC_PREREAD); 1796 } else { 1797 bus_dmamap_sync(sc->sc_dmat, cmd->src_map, 1798 BUS_DMASYNC_PREWRITE); 1799 bus_dmamap_sync(sc->sc_dmat, cmd->dst_map, 1800 BUS_DMASYNC_PREREAD); 1801 } 1802 1803 /* 1804 * need N src, and N dst 1805 */ 1806 if ((dma->srcu + cmd->src_nsegs) > HIFN_D_SRC_RSIZE || 1807 (dma->dstu + cmd->dst_nsegs + 1) > HIFN_D_DST_RSIZE) { 1808 #ifdef HIFN_DEBUG 1809 if (hifn_debug) { 1810 device_printf(sc->sc_dev, 1811 "src/dst exhaustion, srcu %u+%u dstu %u+%u\n", 1812 dma->srcu, cmd->src_nsegs, 1813 dma->dstu, cmd->dst_nsegs); 1814 } 1815 #endif 1816 hifnstats.hst_nomem_sd++; 1817 err = ERESTART; 1818 goto err_dstmap; 1819 } 1820 1821 if (dma->cmdi == HIFN_D_CMD_RSIZE) { 1822 dma->cmdi = 0; 1823 dma->cmdr[HIFN_D_CMD_RSIZE].l = htole32(HIFN_D_VALID | 1824 HIFN_D_JUMP | HIFN_D_MASKDONEIRQ); 1825 HIFN_CMDR_SYNC(sc, HIFN_D_CMD_RSIZE, 1826 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1827 } 1828 cmdi = dma->cmdi++; 1829 cmdlen = hifn_write_command(cmd, dma->command_bufs[cmdi]); 1830 HIFN_CMD_SYNC(sc, cmdi, BUS_DMASYNC_PREWRITE); 1831 1832 /* .p for command/result already set */ 1833 dma->cmdr[cmdi].l = htole32(cmdlen | HIFN_D_VALID | HIFN_D_LAST | 1834 HIFN_D_MASKDONEIRQ); 1835 HIFN_CMDR_SYNC(sc, cmdi, 1836 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1837 dma->cmdu++; 1838 if (sc->sc_c_busy == 0) { 1839 WRITE_REG_1(sc, HIFN_1_DMA_CSR, HIFN_DMACSR_C_CTRL_ENA); 1840 sc->sc_c_busy = 1; 1841 } 1842 1843 /* 1844 * We don't worry about missing an interrupt (which a "command wait" 1845 * interrupt salvages us from), unless there is more than one command 1846 * in the queue. 1847 */ 1848 if (dma->cmdu > 1) { 1849 sc->sc_dmaier |= HIFN_DMAIER_C_WAIT; 1850 WRITE_REG_1(sc, HIFN_1_DMA_IER, sc->sc_dmaier); 1851 } 1852 1853 hifnstats.hst_ipackets++; 1854 hifnstats.hst_ibytes += cmd->src_mapsize; 1855 1856 hifn_dmamap_load_src(sc, cmd); 1857 if (sc->sc_s_busy == 0) { 1858 WRITE_REG_1(sc, HIFN_1_DMA_CSR, HIFN_DMACSR_S_CTRL_ENA); 1859 sc->sc_s_busy = 1; 1860 } 1861 1862 /* 1863 * Unlike other descriptors, we don't mask done interrupt from 1864 * result descriptor. 1865 */ 1866 #ifdef HIFN_DEBUG 1867 if (hifn_debug) 1868 printf("load res\n"); 1869 #endif 1870 if (dma->resi == HIFN_D_RES_RSIZE) { 1871 dma->resi = 0; 1872 dma->resr[HIFN_D_RES_RSIZE].l = htole32(HIFN_D_VALID | 1873 HIFN_D_JUMP | HIFN_D_MASKDONEIRQ); 1874 HIFN_RESR_SYNC(sc, HIFN_D_RES_RSIZE, 1875 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1876 } 1877 resi = dma->resi++; 1878 KASSERT(dma->hifn_commands[resi] == NULL, 1879 ("hifn_crypto: command slot %u busy", resi)); 1880 dma->hifn_commands[resi] = cmd; 1881 HIFN_RES_SYNC(sc, resi, BUS_DMASYNC_PREREAD); 1882 if ((hint & CRYPTO_HINT_MORE) && sc->sc_curbatch < hifn_maxbatch) { 1883 dma->resr[resi].l = htole32(HIFN_MAX_RESULT | 1884 HIFN_D_VALID | HIFN_D_LAST | HIFN_D_MASKDONEIRQ); 1885 sc->sc_curbatch++; 1886 if (sc->sc_curbatch > hifnstats.hst_maxbatch) 1887 hifnstats.hst_maxbatch = sc->sc_curbatch; 1888 hifnstats.hst_totbatch++; 1889 } else { 1890 dma->resr[resi].l = htole32(HIFN_MAX_RESULT | 1891 HIFN_D_VALID | HIFN_D_LAST); 1892 sc->sc_curbatch = 0; 1893 } 1894 HIFN_RESR_SYNC(sc, resi, 1895 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1896 dma->resu++; 1897 if (sc->sc_r_busy == 0) { 1898 WRITE_REG_1(sc, HIFN_1_DMA_CSR, HIFN_DMACSR_R_CTRL_ENA); 1899 sc->sc_r_busy = 1; 1900 } 1901 1902 if (cmd->sloplen) 1903 cmd->slopidx = resi; 1904 1905 hifn_dmamap_load_dst(sc, cmd); 1906 1907 if (sc->sc_d_busy == 0) { 1908 WRITE_REG_1(sc, HIFN_1_DMA_CSR, HIFN_DMACSR_D_CTRL_ENA); 1909 sc->sc_d_busy = 1; 1910 } 1911 1912 #ifdef HIFN_DEBUG 1913 if (hifn_debug) { 1914 device_printf(sc->sc_dev, "command: stat %8x ier %8x\n", 1915 READ_REG_1(sc, HIFN_1_DMA_CSR), 1916 READ_REG_1(sc, HIFN_1_DMA_IER)); 1917 } 1918 #endif 1919 1920 sc->sc_active = 5; 1921 HIFN_UNLOCK(sc); 1922 KASSERT(err == 0, ("hifn_crypto: success with error %u", err)); 1923 return (err); /* success */ 1924 1925 err_dstmap: 1926 if (cmd->src_map != cmd->dst_map) 1927 bus_dmamap_unload(sc->sc_dmat, cmd->dst_map); 1928 err_dstmap1: 1929 if (cmd->src_map != cmd->dst_map) 1930 bus_dmamap_destroy(sc->sc_dmat, cmd->dst_map); 1931 err_srcmap: 1932 if (crp->crp_flags & CRYPTO_F_IMBUF) { 1933 if (cmd->src_m != cmd->dst_m) 1934 m_freem(cmd->dst_m); 1935 } 1936 bus_dmamap_unload(sc->sc_dmat, cmd->src_map); 1937 err_srcmap1: 1938 bus_dmamap_destroy(sc->sc_dmat, cmd->src_map); 1939 HIFN_UNLOCK(sc); 1940 return (err); 1941 } 1942 1943 static void 1944 hifn_tick(void* vsc) 1945 { 1946 struct hifn_softc *sc = vsc; 1947 1948 HIFN_LOCK(sc); 1949 if (sc->sc_active == 0) { 1950 struct hifn_dma *dma = sc->sc_dma; 1951 u_int32_t r = 0; 1952 1953 if (dma->cmdu == 0 && sc->sc_c_busy) { 1954 sc->sc_c_busy = 0; 1955 r |= HIFN_DMACSR_C_CTRL_DIS; 1956 } 1957 if (dma->srcu == 0 && sc->sc_s_busy) { 1958 sc->sc_s_busy = 0; 1959 r |= HIFN_DMACSR_S_CTRL_DIS; 1960 } 1961 if (dma->dstu == 0 && sc->sc_d_busy) { 1962 sc->sc_d_busy = 0; 1963 r |= HIFN_DMACSR_D_CTRL_DIS; 1964 } 1965 if (dma->resu == 0 && sc->sc_r_busy) { 1966 sc->sc_r_busy = 0; 1967 r |= HIFN_DMACSR_R_CTRL_DIS; 1968 } 1969 if (r) 1970 WRITE_REG_1(sc, HIFN_1_DMA_CSR, r); 1971 } else 1972 sc->sc_active--; 1973 HIFN_UNLOCK(sc); 1974 callout_reset(&sc->sc_tickto, hz, hifn_tick, sc); 1975 } 1976 1977 static void 1978 hifn_intr(void *arg) 1979 { 1980 struct hifn_softc *sc = arg; 1981 struct hifn_dma *dma; 1982 u_int32_t dmacsr, restart; 1983 int i, u; 1984 1985 dmacsr = READ_REG_1(sc, HIFN_1_DMA_CSR); 1986 1987 /* Nothing in the DMA unit interrupted */ 1988 if ((dmacsr & sc->sc_dmaier) == 0) 1989 return; 1990 1991 HIFN_LOCK(sc); 1992 1993 dma = sc->sc_dma; 1994 1995 #ifdef HIFN_DEBUG 1996 if (hifn_debug) { 1997 device_printf(sc->sc_dev, 1998 "irq: stat %08x ien %08x damier %08x i %d/%d/%d/%d k %d/%d/%d/%d u %d/%d/%d/%d\n", 1999 dmacsr, READ_REG_1(sc, HIFN_1_DMA_IER), sc->sc_dmaier, 2000 dma->cmdi, dma->srci, dma->dsti, dma->resi, 2001 dma->cmdk, dma->srck, dma->dstk, dma->resk, 2002 dma->cmdu, dma->srcu, dma->dstu, dma->resu); 2003 } 2004 #endif 2005 2006 WRITE_REG_1(sc, HIFN_1_DMA_CSR, dmacsr & sc->sc_dmaier); 2007 2008 if ((sc->sc_flags & HIFN_HAS_PUBLIC) && 2009 (dmacsr & HIFN_DMACSR_PUBDONE)) 2010 WRITE_REG_1(sc, HIFN_1_PUB_STATUS, 2011 READ_REG_1(sc, HIFN_1_PUB_STATUS) | HIFN_PUBSTS_DONE); 2012 2013 restart = dmacsr & (HIFN_DMACSR_D_OVER | HIFN_DMACSR_R_OVER); 2014 if (restart) 2015 device_printf(sc->sc_dev, "overrun %x\n", dmacsr); 2016 2017 if (sc->sc_flags & HIFN_IS_7811) { 2018 if (dmacsr & HIFN_DMACSR_ILLR) 2019 device_printf(sc->sc_dev, "illegal read\n"); 2020 if (dmacsr & HIFN_DMACSR_ILLW) 2021 device_printf(sc->sc_dev, "illegal write\n"); 2022 } 2023 2024 restart = dmacsr & (HIFN_DMACSR_C_ABORT | HIFN_DMACSR_S_ABORT | 2025 HIFN_DMACSR_D_ABORT | HIFN_DMACSR_R_ABORT); 2026 if (restart) { 2027 device_printf(sc->sc_dev, "abort, resetting.\n"); 2028 hifnstats.hst_abort++; 2029 hifn_abort(sc); 2030 HIFN_UNLOCK(sc); 2031 return; 2032 } 2033 2034 if ((dmacsr & HIFN_DMACSR_C_WAIT) && (dma->cmdu == 0)) { 2035 /* 2036 * If no slots to process and we receive a "waiting on 2037 * command" interrupt, we disable the "waiting on command" 2038 * (by clearing it). 2039 */ 2040 sc->sc_dmaier &= ~HIFN_DMAIER_C_WAIT; 2041 WRITE_REG_1(sc, HIFN_1_DMA_IER, sc->sc_dmaier); 2042 } 2043 2044 /* clear the rings */ 2045 i = dma->resk; u = dma->resu; 2046 while (u != 0) { 2047 HIFN_RESR_SYNC(sc, i, 2048 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 2049 if (dma->resr[i].l & htole32(HIFN_D_VALID)) { 2050 HIFN_RESR_SYNC(sc, i, 2051 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2052 break; 2053 } 2054 2055 if (i != HIFN_D_RES_RSIZE) { 2056 struct hifn_command *cmd; 2057 u_int8_t *macbuf = NULL; 2058 2059 HIFN_RES_SYNC(sc, i, BUS_DMASYNC_POSTREAD); 2060 cmd = dma->hifn_commands[i]; 2061 KASSERT(cmd != NULL, 2062 ("hifn_intr: null command slot %u", i)); 2063 dma->hifn_commands[i] = NULL; 2064 2065 if (cmd->base_masks & HIFN_BASE_CMD_MAC) { 2066 macbuf = dma->result_bufs[i]; 2067 macbuf += 12; 2068 } 2069 2070 hifn_callback(sc, cmd, macbuf); 2071 hifnstats.hst_opackets++; 2072 u--; 2073 } 2074 2075 if (++i == (HIFN_D_RES_RSIZE + 1)) 2076 i = 0; 2077 } 2078 dma->resk = i; dma->resu = u; 2079 2080 i = dma->srck; u = dma->srcu; 2081 while (u != 0) { 2082 if (i == HIFN_D_SRC_RSIZE) 2083 i = 0; 2084 HIFN_SRCR_SYNC(sc, i, 2085 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 2086 if (dma->srcr[i].l & htole32(HIFN_D_VALID)) { 2087 HIFN_SRCR_SYNC(sc, i, 2088 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2089 break; 2090 } 2091 i++, u--; 2092 } 2093 dma->srck = i; dma->srcu = u; 2094 2095 i = dma->cmdk; u = dma->cmdu; 2096 while (u != 0) { 2097 HIFN_CMDR_SYNC(sc, i, 2098 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 2099 if (dma->cmdr[i].l & htole32(HIFN_D_VALID)) { 2100 HIFN_CMDR_SYNC(sc, i, 2101 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2102 break; 2103 } 2104 if (i != HIFN_D_CMD_RSIZE) { 2105 u--; 2106 HIFN_CMD_SYNC(sc, i, BUS_DMASYNC_POSTWRITE); 2107 } 2108 if (++i == (HIFN_D_CMD_RSIZE + 1)) 2109 i = 0; 2110 } 2111 dma->cmdk = i; dma->cmdu = u; 2112 2113 HIFN_UNLOCK(sc); 2114 2115 if (sc->sc_needwakeup) { /* XXX check high watermark */ 2116 int wakeup = sc->sc_needwakeup & (CRYPTO_SYMQ|CRYPTO_ASYMQ); 2117 #ifdef HIFN_DEBUG 2118 if (hifn_debug) 2119 device_printf(sc->sc_dev, 2120 "wakeup crypto (%x) u %d/%d/%d/%d\n", 2121 sc->sc_needwakeup, 2122 dma->cmdu, dma->srcu, dma->dstu, dma->resu); 2123 #endif 2124 sc->sc_needwakeup &= ~wakeup; 2125 crypto_unblock(sc->sc_cid, wakeup); 2126 } 2127 } 2128 2129 /* 2130 * Allocate a new 'session' and return an encoded session id. 'sidp' 2131 * contains our registration id, and should contain an encoded session 2132 * id on successful allocation. 2133 */ 2134 static int 2135 hifn_newsession(void *arg, u_int32_t *sidp, struct cryptoini *cri) 2136 { 2137 struct cryptoini *c; 2138 struct hifn_softc *sc = arg; 2139 int i, mac = 0, cry = 0; 2140 2141 KASSERT(sc != NULL, ("hifn_newsession: null softc")); 2142 if (sidp == NULL || cri == NULL || sc == NULL) 2143 return (EINVAL); 2144 2145 for (i = 0; i < sc->sc_maxses; i++) 2146 if (sc->sc_sessions[i].hs_state == HS_STATE_FREE) 2147 break; 2148 if (i == sc->sc_maxses) 2149 return (ENOMEM); 2150 2151 for (c = cri; c != NULL; c = c->cri_next) { 2152 switch (c->cri_alg) { 2153 case CRYPTO_MD5: 2154 case CRYPTO_SHA1: 2155 case CRYPTO_MD5_HMAC: 2156 case CRYPTO_SHA1_HMAC: 2157 if (mac) 2158 return (EINVAL); 2159 mac = 1; 2160 break; 2161 case CRYPTO_DES_CBC: 2162 case CRYPTO_3DES_CBC: 2163 /* XXX this may read fewer, does it matter? */ 2164 read_random(sc->sc_sessions[i].hs_iv, HIFN_IV_LENGTH); 2165 /*FALLTHROUGH*/ 2166 case CRYPTO_ARC4: 2167 if (cry) 2168 return (EINVAL); 2169 cry = 1; 2170 break; 2171 default: 2172 return (EINVAL); 2173 } 2174 } 2175 if (mac == 0 && cry == 0) 2176 return (EINVAL); 2177 2178 *sidp = HIFN_SID(device_get_unit(sc->sc_dev), i); 2179 sc->sc_sessions[i].hs_state = HS_STATE_USED; 2180 2181 return (0); 2182 } 2183 2184 /* 2185 * Deallocate a session. 2186 * XXX this routine should run a zero'd mac/encrypt key into context ram. 2187 * XXX to blow away any keys already stored there. 2188 */ 2189 static int 2190 hifn_freesession(void *arg, u_int64_t tid) 2191 { 2192 struct hifn_softc *sc = arg; 2193 int session; 2194 u_int32_t sid = CRYPTO_SESID2LID(tid); 2195 2196 KASSERT(sc != NULL, ("hifn_freesession: null softc")); 2197 if (sc == NULL) 2198 return (EINVAL); 2199 2200 session = HIFN_SESSION(sid); 2201 if (session >= sc->sc_maxses) 2202 return (EINVAL); 2203 2204 bzero(&sc->sc_sessions[session], sizeof(sc->sc_sessions[session])); 2205 return (0); 2206 } 2207 2208 static int 2209 hifn_process(void *arg, struct cryptop *crp, int hint) 2210 { 2211 struct hifn_softc *sc = arg; 2212 struct hifn_command *cmd = NULL; 2213 int session, err; 2214 struct cryptodesc *crd1, *crd2, *maccrd, *enccrd; 2215 2216 if (crp == NULL || crp->crp_callback == NULL) { 2217 hifnstats.hst_invalid++; 2218 return (EINVAL); 2219 } 2220 session = HIFN_SESSION(crp->crp_sid); 2221 2222 if (sc == NULL || session >= sc->sc_maxses) { 2223 err = EINVAL; 2224 goto errout; 2225 } 2226 2227 cmd = malloc(sizeof(struct hifn_command), M_DEVBUF, M_NOWAIT | M_ZERO); 2228 if (cmd == NULL) { 2229 hifnstats.hst_nomem++; 2230 err = ENOMEM; 2231 goto errout; 2232 } 2233 2234 if (crp->crp_flags & CRYPTO_F_IMBUF) { 2235 cmd->src_m = (struct mbuf *)crp->crp_buf; 2236 cmd->dst_m = (struct mbuf *)crp->crp_buf; 2237 } else if (crp->crp_flags & CRYPTO_F_IOV) { 2238 cmd->src_io = (struct uio *)crp->crp_buf; 2239 cmd->dst_io = (struct uio *)crp->crp_buf; 2240 } else { 2241 err = EINVAL; 2242 goto errout; /* XXX we don't handle contiguous buffers! */ 2243 } 2244 2245 crd1 = crp->crp_desc; 2246 if (crd1 == NULL) { 2247 err = EINVAL; 2248 goto errout; 2249 } 2250 crd2 = crd1->crd_next; 2251 2252 if (crd2 == NULL) { 2253 if (crd1->crd_alg == CRYPTO_MD5_HMAC || 2254 crd1->crd_alg == CRYPTO_SHA1_HMAC || 2255 crd1->crd_alg == CRYPTO_SHA1 || 2256 crd1->crd_alg == CRYPTO_MD5) { 2257 maccrd = crd1; 2258 enccrd = NULL; 2259 } else if (crd1->crd_alg == CRYPTO_DES_CBC || 2260 crd1->crd_alg == CRYPTO_3DES_CBC || 2261 crd1->crd_alg == CRYPTO_ARC4) { 2262 if ((crd1->crd_flags & CRD_F_ENCRYPT) == 0) 2263 cmd->base_masks |= HIFN_BASE_CMD_DECODE; 2264 maccrd = NULL; 2265 enccrd = crd1; 2266 } else { 2267 err = EINVAL; 2268 goto errout; 2269 } 2270 } else { 2271 if ((crd1->crd_alg == CRYPTO_MD5_HMAC || 2272 crd1->crd_alg == CRYPTO_SHA1_HMAC || 2273 crd1->crd_alg == CRYPTO_MD5 || 2274 crd1->crd_alg == CRYPTO_SHA1) && 2275 (crd2->crd_alg == CRYPTO_DES_CBC || 2276 crd2->crd_alg == CRYPTO_3DES_CBC || 2277 crd2->crd_alg == CRYPTO_ARC4) && 2278 ((crd2->crd_flags & CRD_F_ENCRYPT) == 0)) { 2279 cmd->base_masks = HIFN_BASE_CMD_DECODE; 2280 maccrd = crd1; 2281 enccrd = crd2; 2282 } else if ((crd1->crd_alg == CRYPTO_DES_CBC || 2283 crd1->crd_alg == CRYPTO_ARC4 || 2284 crd1->crd_alg == CRYPTO_3DES_CBC) && 2285 (crd2->crd_alg == CRYPTO_MD5_HMAC || 2286 crd2->crd_alg == CRYPTO_SHA1_HMAC || 2287 crd2->crd_alg == CRYPTO_MD5 || 2288 crd2->crd_alg == CRYPTO_SHA1) && 2289 (crd1->crd_flags & CRD_F_ENCRYPT)) { 2290 enccrd = crd1; 2291 maccrd = crd2; 2292 } else { 2293 /* 2294 * We cannot order the 7751 as requested 2295 */ 2296 err = EINVAL; 2297 goto errout; 2298 } 2299 } 2300 2301 if (enccrd) { 2302 cmd->enccrd = enccrd; 2303 cmd->base_masks |= HIFN_BASE_CMD_CRYPT; 2304 switch (enccrd->crd_alg) { 2305 case CRYPTO_ARC4: 2306 cmd->cry_masks |= HIFN_CRYPT_CMD_ALG_RC4; 2307 if ((enccrd->crd_flags & CRD_F_ENCRYPT) 2308 != sc->sc_sessions[session].hs_prev_op) 2309 sc->sc_sessions[session].hs_state = 2310 HS_STATE_USED; 2311 break; 2312 case CRYPTO_DES_CBC: 2313 cmd->cry_masks |= HIFN_CRYPT_CMD_ALG_DES | 2314 HIFN_CRYPT_CMD_MODE_CBC | 2315 HIFN_CRYPT_CMD_NEW_IV; 2316 break; 2317 case CRYPTO_3DES_CBC: 2318 cmd->cry_masks |= HIFN_CRYPT_CMD_ALG_3DES | 2319 HIFN_CRYPT_CMD_MODE_CBC | 2320 HIFN_CRYPT_CMD_NEW_IV; 2321 break; 2322 default: 2323 err = EINVAL; 2324 goto errout; 2325 } 2326 if (enccrd->crd_alg != CRYPTO_ARC4) { 2327 if (enccrd->crd_flags & CRD_F_ENCRYPT) { 2328 if (enccrd->crd_flags & CRD_F_IV_EXPLICIT) 2329 bcopy(enccrd->crd_iv, cmd->iv, 2330 HIFN_IV_LENGTH); 2331 else 2332 bcopy(sc->sc_sessions[session].hs_iv, 2333 cmd->iv, HIFN_IV_LENGTH); 2334 2335 if ((enccrd->crd_flags & CRD_F_IV_PRESENT) 2336 == 0) { 2337 if (crp->crp_flags & CRYPTO_F_IMBUF) 2338 m_copyback(cmd->src_m, 2339 enccrd->crd_inject, 2340 HIFN_IV_LENGTH, cmd->iv); 2341 else if (crp->crp_flags & CRYPTO_F_IOV) 2342 cuio_copyback(cmd->src_io, 2343 enccrd->crd_inject, 2344 HIFN_IV_LENGTH, cmd->iv); 2345 } 2346 } else { 2347 if (enccrd->crd_flags & CRD_F_IV_EXPLICIT) 2348 bcopy(enccrd->crd_iv, cmd->iv, 2349 HIFN_IV_LENGTH); 2350 else if (crp->crp_flags & CRYPTO_F_IMBUF) 2351 m_copydata(cmd->src_m, 2352 enccrd->crd_inject, 2353 HIFN_IV_LENGTH, cmd->iv); 2354 else if (crp->crp_flags & CRYPTO_F_IOV) 2355 cuio_copydata(cmd->src_io, 2356 enccrd->crd_inject, 2357 HIFN_IV_LENGTH, cmd->iv); 2358 } 2359 } 2360 2361 cmd->ck = enccrd->crd_key; 2362 cmd->cklen = enccrd->crd_klen >> 3; 2363 2364 if (sc->sc_sessions[session].hs_state == HS_STATE_USED) 2365 cmd->cry_masks |= HIFN_CRYPT_CMD_NEW_KEY; 2366 } 2367 2368 if (maccrd) { 2369 cmd->maccrd = maccrd; 2370 cmd->base_masks |= HIFN_BASE_CMD_MAC; 2371 2372 switch (maccrd->crd_alg) { 2373 case CRYPTO_MD5: 2374 cmd->mac_masks |= HIFN_MAC_CMD_ALG_MD5 | 2375 HIFN_MAC_CMD_RESULT | HIFN_MAC_CMD_MODE_HASH | 2376 HIFN_MAC_CMD_POS_IPSEC; 2377 break; 2378 case CRYPTO_MD5_HMAC: 2379 cmd->mac_masks |= HIFN_MAC_CMD_ALG_MD5 | 2380 HIFN_MAC_CMD_RESULT | HIFN_MAC_CMD_MODE_HMAC | 2381 HIFN_MAC_CMD_POS_IPSEC | HIFN_MAC_CMD_TRUNC; 2382 break; 2383 case CRYPTO_SHA1: 2384 cmd->mac_masks |= HIFN_MAC_CMD_ALG_SHA1 | 2385 HIFN_MAC_CMD_RESULT | HIFN_MAC_CMD_MODE_HASH | 2386 HIFN_MAC_CMD_POS_IPSEC; 2387 break; 2388 case CRYPTO_SHA1_HMAC: 2389 cmd->mac_masks |= HIFN_MAC_CMD_ALG_SHA1 | 2390 HIFN_MAC_CMD_RESULT | HIFN_MAC_CMD_MODE_HMAC | 2391 HIFN_MAC_CMD_POS_IPSEC | HIFN_MAC_CMD_TRUNC; 2392 break; 2393 } 2394 2395 if ((maccrd->crd_alg == CRYPTO_SHA1_HMAC || 2396 maccrd->crd_alg == CRYPTO_MD5_HMAC) && 2397 sc->sc_sessions[session].hs_state == HS_STATE_USED) { 2398 cmd->mac_masks |= HIFN_MAC_CMD_NEW_KEY; 2399 bcopy(maccrd->crd_key, cmd->mac, maccrd->crd_klen >> 3); 2400 bzero(cmd->mac + (maccrd->crd_klen >> 3), 2401 HIFN_MAC_KEY_LENGTH - (maccrd->crd_klen >> 3)); 2402 } 2403 } 2404 2405 cmd->crp = crp; 2406 cmd->session_num = session; 2407 cmd->softc = sc; 2408 2409 err = hifn_crypto(sc, cmd, crp, hint); 2410 if (!err) { 2411 if (enccrd) 2412 sc->sc_sessions[session].hs_prev_op = 2413 enccrd->crd_flags & CRD_F_ENCRYPT; 2414 if (sc->sc_sessions[session].hs_state == HS_STATE_USED) 2415 sc->sc_sessions[session].hs_state = HS_STATE_KEY; 2416 return 0; 2417 } else if (err == ERESTART) { 2418 /* 2419 * There weren't enough resources to dispatch the request 2420 * to the part. Notify the caller so they'll requeue this 2421 * request and resubmit it again soon. 2422 */ 2423 #ifdef HIFN_DEBUG 2424 if (hifn_debug) 2425 device_printf(sc->sc_dev, "requeue request\n"); 2426 #endif 2427 free(cmd, M_DEVBUF); 2428 sc->sc_needwakeup |= CRYPTO_SYMQ; 2429 return (err); 2430 } 2431 2432 errout: 2433 if (cmd != NULL) 2434 free(cmd, M_DEVBUF); 2435 if (err == EINVAL) 2436 hifnstats.hst_invalid++; 2437 else 2438 hifnstats.hst_nomem++; 2439 crp->crp_etype = err; 2440 crypto_done(crp); 2441 return (err); 2442 } 2443 2444 static void 2445 hifn_abort(struct hifn_softc *sc) 2446 { 2447 struct hifn_dma *dma = sc->sc_dma; 2448 struct hifn_command *cmd; 2449 struct cryptop *crp; 2450 int i, u; 2451 2452 i = dma->resk; u = dma->resu; 2453 while (u != 0) { 2454 cmd = dma->hifn_commands[i]; 2455 KASSERT(cmd != NULL, ("hifn_abort: null command slot %u", i)); 2456 dma->hifn_commands[i] = NULL; 2457 crp = cmd->crp; 2458 2459 if ((dma->resr[i].l & htole32(HIFN_D_VALID)) == 0) { 2460 /* Salvage what we can. */ 2461 u_int8_t *macbuf; 2462 2463 if (cmd->base_masks & HIFN_BASE_CMD_MAC) { 2464 macbuf = dma->result_bufs[i]; 2465 macbuf += 12; 2466 } else 2467 macbuf = NULL; 2468 hifnstats.hst_opackets++; 2469 hifn_callback(sc, cmd, macbuf); 2470 } else { 2471 if (cmd->src_map == cmd->dst_map) { 2472 bus_dmamap_sync(sc->sc_dmat, cmd->src_map, 2473 BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE); 2474 } else { 2475 bus_dmamap_sync(sc->sc_dmat, cmd->src_map, 2476 BUS_DMASYNC_POSTWRITE); 2477 bus_dmamap_sync(sc->sc_dmat, cmd->dst_map, 2478 BUS_DMASYNC_POSTREAD); 2479 } 2480 2481 if (cmd->src_m != cmd->dst_m) { 2482 m_freem(cmd->src_m); 2483 crp->crp_buf = (caddr_t)cmd->dst_m; 2484 } 2485 2486 /* non-shared buffers cannot be restarted */ 2487 if (cmd->src_map != cmd->dst_map) { 2488 /* 2489 * XXX should be EAGAIN, delayed until 2490 * after the reset. 2491 */ 2492 crp->crp_etype = ENOMEM; 2493 bus_dmamap_unload(sc->sc_dmat, cmd->dst_map); 2494 bus_dmamap_destroy(sc->sc_dmat, cmd->dst_map); 2495 } else 2496 crp->crp_etype = ENOMEM; 2497 2498 bus_dmamap_unload(sc->sc_dmat, cmd->src_map); 2499 bus_dmamap_destroy(sc->sc_dmat, cmd->src_map); 2500 2501 free(cmd, M_DEVBUF); 2502 if (crp->crp_etype != EAGAIN) 2503 crypto_done(crp); 2504 } 2505 2506 if (++i == HIFN_D_RES_RSIZE) 2507 i = 0; 2508 u--; 2509 } 2510 dma->resk = i; dma->resu = u; 2511 2512 /* Force upload of key next time */ 2513 for (i = 0; i < sc->sc_maxses; i++) 2514 if (sc->sc_sessions[i].hs_state == HS_STATE_KEY) 2515 sc->sc_sessions[i].hs_state = HS_STATE_USED; 2516 2517 hifn_reset_board(sc, 1); 2518 hifn_init_dma(sc); 2519 hifn_init_pci_registers(sc); 2520 } 2521 2522 static void 2523 hifn_callback(struct hifn_softc *sc, struct hifn_command *cmd, u_int8_t *macbuf) 2524 { 2525 struct hifn_dma *dma = sc->sc_dma; 2526 struct cryptop *crp = cmd->crp; 2527 struct cryptodesc *crd; 2528 struct mbuf *m; 2529 int totlen, i, u; 2530 2531 if (cmd->src_map == cmd->dst_map) { 2532 bus_dmamap_sync(sc->sc_dmat, cmd->src_map, 2533 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 2534 } else { 2535 bus_dmamap_sync(sc->sc_dmat, cmd->src_map, 2536 BUS_DMASYNC_POSTWRITE); 2537 bus_dmamap_sync(sc->sc_dmat, cmd->dst_map, 2538 BUS_DMASYNC_POSTREAD); 2539 } 2540 2541 if (crp->crp_flags & CRYPTO_F_IMBUF) { 2542 if (cmd->src_m != cmd->dst_m) { 2543 crp->crp_buf = (caddr_t)cmd->dst_m; 2544 totlen = cmd->src_mapsize; 2545 for (m = cmd->dst_m; m != NULL; m = m->m_next) { 2546 if (totlen < m->m_len) { 2547 m->m_len = totlen; 2548 totlen = 0; 2549 } else 2550 totlen -= m->m_len; 2551 } 2552 cmd->dst_m->m_pkthdr.len = cmd->src_m->m_pkthdr.len; 2553 m_freem(cmd->src_m); 2554 } 2555 } 2556 2557 if (cmd->sloplen != 0) { 2558 if (crp->crp_flags & CRYPTO_F_IMBUF) 2559 m_copyback((struct mbuf *)crp->crp_buf, 2560 cmd->src_mapsize - cmd->sloplen, 2561 cmd->sloplen, (caddr_t)&dma->slop[cmd->slopidx]); 2562 else if (crp->crp_flags & CRYPTO_F_IOV) 2563 cuio_copyback((struct uio *)crp->crp_buf, 2564 cmd->src_mapsize - cmd->sloplen, 2565 cmd->sloplen, (caddr_t)&dma->slop[cmd->slopidx]); 2566 } 2567 2568 i = dma->dstk; u = dma->dstu; 2569 while (u != 0) { 2570 if (i == HIFN_D_DST_RSIZE) 2571 i = 0; 2572 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 2573 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 2574 if (dma->dstr[i].l & htole32(HIFN_D_VALID)) { 2575 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 2576 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2577 break; 2578 } 2579 i++, u--; 2580 } 2581 dma->dstk = i; dma->dstu = u; 2582 2583 hifnstats.hst_obytes += cmd->dst_mapsize; 2584 2585 if ((cmd->base_masks & (HIFN_BASE_CMD_CRYPT | HIFN_BASE_CMD_DECODE)) == 2586 HIFN_BASE_CMD_CRYPT) { 2587 for (crd = crp->crp_desc; crd; crd = crd->crd_next) { 2588 if (crd->crd_alg != CRYPTO_DES_CBC && 2589 crd->crd_alg != CRYPTO_3DES_CBC) 2590 continue; 2591 if (crp->crp_flags & CRYPTO_F_IMBUF) 2592 m_copydata((struct mbuf *)crp->crp_buf, 2593 crd->crd_skip + crd->crd_len - HIFN_IV_LENGTH, 2594 HIFN_IV_LENGTH, 2595 cmd->softc->sc_sessions[cmd->session_num].hs_iv); 2596 else if (crp->crp_flags & CRYPTO_F_IOV) { 2597 cuio_copydata((struct uio *)crp->crp_buf, 2598 crd->crd_skip + crd->crd_len - HIFN_IV_LENGTH, 2599 HIFN_IV_LENGTH, 2600 cmd->softc->sc_sessions[cmd->session_num].hs_iv); 2601 } 2602 break; 2603 } 2604 } 2605 2606 if (macbuf != NULL) { 2607 for (crd = crp->crp_desc; crd; crd = crd->crd_next) { 2608 int len; 2609 2610 if (crd->crd_alg == CRYPTO_MD5) 2611 len = 16; 2612 else if (crd->crd_alg == CRYPTO_SHA1) 2613 len = 20; 2614 else if (crd->crd_alg == CRYPTO_MD5_HMAC || 2615 crd->crd_alg == CRYPTO_SHA1_HMAC) 2616 len = 12; 2617 else 2618 continue; 2619 2620 if (crp->crp_flags & CRYPTO_F_IMBUF) 2621 m_copyback((struct mbuf *)crp->crp_buf, 2622 crd->crd_inject, len, macbuf); 2623 else if ((crp->crp_flags & CRYPTO_F_IOV) && crp->crp_mac) 2624 bcopy((caddr_t)macbuf, crp->crp_mac, len); 2625 break; 2626 } 2627 } 2628 2629 if (cmd->src_map != cmd->dst_map) { 2630 bus_dmamap_unload(sc->sc_dmat, cmd->dst_map); 2631 bus_dmamap_destroy(sc->sc_dmat, cmd->dst_map); 2632 } 2633 bus_dmamap_unload(sc->sc_dmat, cmd->src_map); 2634 bus_dmamap_destroy(sc->sc_dmat, cmd->src_map); 2635 free(cmd, M_DEVBUF); 2636 crypto_done(crp); 2637 } 2638 2639 /* 2640 * 7811 PB3 rev/2 parts lock-up on burst writes to Group 0 2641 * and Group 1 registers; avoid conditions that could create 2642 * burst writes by doing a read in between the writes. 2643 * 2644 * NB: The read we interpose is always to the same register; 2645 * we do this because reading from an arbitrary (e.g. last) 2646 * register may not always work. 2647 */ 2648 static void 2649 hifn_write_reg_0(struct hifn_softc *sc, bus_size_t reg, u_int32_t val) 2650 { 2651 if (sc->sc_flags & HIFN_IS_7811) { 2652 if (sc->sc_bar0_lastreg == reg - 4) 2653 bus_space_read_4(sc->sc_st0, sc->sc_sh0, HIFN_0_PUCNFG); 2654 sc->sc_bar0_lastreg = reg; 2655 } 2656 bus_space_write_4(sc->sc_st0, sc->sc_sh0, reg, val); 2657 } 2658 2659 static void 2660 hifn_write_reg_1(struct hifn_softc *sc, bus_size_t reg, u_int32_t val) 2661 { 2662 if (sc->sc_flags & HIFN_IS_7811) { 2663 if (sc->sc_bar1_lastreg == reg - 4) 2664 bus_space_read_4(sc->sc_st1, sc->sc_sh1, HIFN_1_REVID); 2665 sc->sc_bar1_lastreg = reg; 2666 } 2667 bus_space_write_4(sc->sc_st1, sc->sc_sh1, reg, val); 2668 } 2669