1 /* $FreeBSD: src/sys/dev/hifn/hifn7751.c,v 1.5.2.5 2003/06/04 17:56:59 sam Exp $ */ 2 /* $DragonFly: src/sys/dev/crypto/hifn/hifn7751.c,v 1.2 2003/06/17 04:28:27 dillon Exp $ */ 3 /* $OpenBSD: hifn7751.c,v 1.120 2002/05/17 00:33:34 deraadt Exp $ */ 4 5 /* 6 * Invertex AEON / Hifn 7751 driver 7 * Copyright (c) 1999 Invertex Inc. All rights reserved. 8 * Copyright (c) 1999 Theo de Raadt 9 * Copyright (c) 2000-2001 Network Security Technologies, Inc. 10 * http://www.netsec.net 11 * 12 * This driver is based on a previous driver by Invertex, for which they 13 * requested: Please send any comments, feedback, bug-fixes, or feature 14 * requests to software@invertex.com. 15 * 16 * Redistribution and use in source and binary forms, with or without 17 * modification, are permitted provided that the following conditions 18 * are met: 19 * 20 * 1. Redistributions of source code must retain the above copyright 21 * notice, this list of conditions and the following disclaimer. 22 * 2. Redistributions in binary form must reproduce the above copyright 23 * notice, this list of conditions and the following disclaimer in the 24 * documentation and/or other materials provided with the distribution. 25 * 3. The name of the author may not be used to endorse or promote products 26 * derived from this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 29 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 30 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 31 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 32 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 33 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 34 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 35 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 36 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 37 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 38 * 39 * Effort sponsored in part by the Defense Advanced Research Projects 40 * Agency (DARPA) and Air Force Research Laboratory, Air Force 41 * Materiel Command, USAF, under agreement number F30602-01-2-0537. 42 * 43 */ 44 45 /* 46 * Driver for the Hifn 7751 encryption processor. 47 */ 48 #include "opt_hifn.h" 49 50 #include <sys/param.h> 51 #include <sys/systm.h> 52 #include <sys/proc.h> 53 #include <sys/errno.h> 54 #include <sys/malloc.h> 55 #include <sys/kernel.h> 56 #include <sys/mbuf.h> 57 #include <sys/sysctl.h> 58 59 #include <vm/vm.h> 60 #include <vm/pmap.h> 61 62 #include <machine/clock.h> 63 #include <machine/bus.h> 64 #include <machine/resource.h> 65 #include <sys/bus.h> 66 #include <sys/rman.h> 67 68 #include <opencrypto/cryptodev.h> 69 #include <sys/random.h> 70 71 #include <pci/pcivar.h> 72 #include <pci/pcireg.h> 73 74 #ifdef HIFN_RNDTEST 75 #include <dev/rndtest/rndtest.h> 76 #endif 77 #include <dev/hifn/hifn7751reg.h> 78 #include <dev/hifn/hifn7751var.h> 79 80 /* 81 * Prototypes and count for the pci_device structure 82 */ 83 static int hifn_probe(device_t); 84 static int hifn_attach(device_t); 85 static int hifn_detach(device_t); 86 static int hifn_suspend(device_t); 87 static int hifn_resume(device_t); 88 static void hifn_shutdown(device_t); 89 90 static device_method_t hifn_methods[] = { 91 /* Device interface */ 92 DEVMETHOD(device_probe, hifn_probe), 93 DEVMETHOD(device_attach, hifn_attach), 94 DEVMETHOD(device_detach, hifn_detach), 95 DEVMETHOD(device_suspend, hifn_suspend), 96 DEVMETHOD(device_resume, hifn_resume), 97 DEVMETHOD(device_shutdown, hifn_shutdown), 98 99 /* bus interface */ 100 DEVMETHOD(bus_print_child, bus_generic_print_child), 101 DEVMETHOD(bus_driver_added, bus_generic_driver_added), 102 103 { 0, 0 } 104 }; 105 static driver_t hifn_driver = { 106 "hifn", 107 hifn_methods, 108 sizeof (struct hifn_softc) 109 }; 110 static devclass_t hifn_devclass; 111 112 DRIVER_MODULE(hifn, pci, hifn_driver, hifn_devclass, 0, 0); 113 MODULE_DEPEND(hifn, crypto, 1, 1, 1); 114 #ifdef HIFN_RNDTEST 115 MODULE_DEPEND(hifn, rndtest, 1, 1, 1); 116 #endif 117 118 static void hifn_reset_board(struct hifn_softc *, int); 119 static void hifn_reset_puc(struct hifn_softc *); 120 static void hifn_puc_wait(struct hifn_softc *); 121 static int hifn_enable_crypto(struct hifn_softc *); 122 static void hifn_set_retry(struct hifn_softc *sc); 123 static void hifn_init_dma(struct hifn_softc *); 124 static void hifn_init_pci_registers(struct hifn_softc *); 125 static int hifn_sramsize(struct hifn_softc *); 126 static int hifn_dramsize(struct hifn_softc *); 127 static int hifn_ramtype(struct hifn_softc *); 128 static void hifn_sessions(struct hifn_softc *); 129 static void hifn_intr(void *); 130 static u_int hifn_write_command(struct hifn_command *, u_int8_t *); 131 static u_int32_t hifn_next_signature(u_int32_t a, u_int cnt); 132 static int hifn_newsession(void *, u_int32_t *, struct cryptoini *); 133 static int hifn_freesession(void *, u_int64_t); 134 static int hifn_process(void *, struct cryptop *, int); 135 static void hifn_callback(struct hifn_softc *, struct hifn_command *, u_int8_t *); 136 static int hifn_crypto(struct hifn_softc *, struct hifn_command *, struct cryptop *, int); 137 static int hifn_readramaddr(struct hifn_softc *, int, u_int8_t *); 138 static int hifn_writeramaddr(struct hifn_softc *, int, u_int8_t *); 139 static int hifn_dmamap_load_src(struct hifn_softc *, struct hifn_command *); 140 static int hifn_dmamap_load_dst(struct hifn_softc *, struct hifn_command *); 141 static int hifn_init_pubrng(struct hifn_softc *); 142 #ifndef HIFN_NO_RNG 143 static void hifn_rng(void *); 144 #endif 145 static void hifn_tick(void *); 146 static void hifn_abort(struct hifn_softc *); 147 static void hifn_alloc_slot(struct hifn_softc *, int *, int *, int *, int *); 148 149 static void hifn_write_reg_0(struct hifn_softc *, bus_size_t, u_int32_t); 150 static void hifn_write_reg_1(struct hifn_softc *, bus_size_t, u_int32_t); 151 152 static __inline__ u_int32_t 153 READ_REG_0(struct hifn_softc *sc, bus_size_t reg) 154 { 155 u_int32_t v = bus_space_read_4(sc->sc_st0, sc->sc_sh0, reg); 156 sc->sc_bar0_lastreg = (bus_size_t) -1; 157 return (v); 158 } 159 #define WRITE_REG_0(sc, reg, val) hifn_write_reg_0(sc, reg, val) 160 161 static __inline__ u_int32_t 162 READ_REG_1(struct hifn_softc *sc, bus_size_t reg) 163 { 164 u_int32_t v = bus_space_read_4(sc->sc_st1, sc->sc_sh1, reg); 165 sc->sc_bar1_lastreg = (bus_size_t) -1; 166 return (v); 167 } 168 #define WRITE_REG_1(sc, reg, val) hifn_write_reg_1(sc, reg, val) 169 170 SYSCTL_NODE(_hw, OID_AUTO, hifn, CTLFLAG_RD, 0, "Hifn driver parameters"); 171 172 #ifdef HIFN_DEBUG 173 static int hifn_debug = 0; 174 SYSCTL_INT(_hw_hifn, OID_AUTO, debug, CTLFLAG_RW, &hifn_debug, 175 0, "control debugging msgs"); 176 #endif 177 178 static struct hifn_stats hifnstats; 179 SYSCTL_STRUCT(_hw_hifn, OID_AUTO, stats, CTLFLAG_RD, &hifnstats, 180 hifn_stats, "driver statistics"); 181 static int hifn_maxbatch = 1; 182 SYSCTL_INT(_hw_hifn, OID_AUTO, maxbatch, CTLFLAG_RW, &hifn_maxbatch, 183 0, "max ops to batch w/o interrupt"); 184 185 /* 186 * Probe for a supported device. The PCI vendor and device 187 * IDs are used to detect devices we know how to handle. 188 */ 189 static int 190 hifn_probe(device_t dev) 191 { 192 if (pci_get_vendor(dev) == PCI_VENDOR_INVERTEX && 193 pci_get_device(dev) == PCI_PRODUCT_INVERTEX_AEON) 194 return (0); 195 if (pci_get_vendor(dev) == PCI_VENDOR_HIFN && 196 (pci_get_device(dev) == PCI_PRODUCT_HIFN_7751 || 197 pci_get_device(dev) == PCI_PRODUCT_HIFN_7951 || 198 pci_get_device(dev) == PCI_PRODUCT_HIFN_7811)) 199 return (0); 200 if (pci_get_vendor(dev) == PCI_VENDOR_NETSEC && 201 pci_get_device(dev) == PCI_PRODUCT_NETSEC_7751) 202 return (0); 203 return (ENXIO); 204 } 205 206 static void 207 hifn_dmamap_cb(void *arg, bus_dma_segment_t *segs, int nseg, int error) 208 { 209 bus_addr_t *paddr = (bus_addr_t*) arg; 210 *paddr = segs->ds_addr; 211 } 212 213 static const char* 214 hifn_partname(struct hifn_softc *sc) 215 { 216 /* XXX sprintf numbers when not decoded */ 217 switch (pci_get_vendor(sc->sc_dev)) { 218 case PCI_VENDOR_HIFN: 219 switch (pci_get_device(sc->sc_dev)) { 220 case PCI_PRODUCT_HIFN_6500: return "Hifn 6500"; 221 case PCI_PRODUCT_HIFN_7751: return "Hifn 7751"; 222 case PCI_PRODUCT_HIFN_7811: return "Hifn 7811"; 223 case PCI_PRODUCT_HIFN_7951: return "Hifn 7951"; 224 } 225 return "Hifn unknown-part"; 226 case PCI_VENDOR_INVERTEX: 227 switch (pci_get_device(sc->sc_dev)) { 228 case PCI_PRODUCT_INVERTEX_AEON: return "Invertex AEON"; 229 } 230 return "Invertex unknown-part"; 231 case PCI_VENDOR_NETSEC: 232 switch (pci_get_device(sc->sc_dev)) { 233 case PCI_PRODUCT_NETSEC_7751: return "NetSec 7751"; 234 } 235 return "NetSec unknown-part"; 236 } 237 return "Unknown-vendor unknown-part"; 238 } 239 240 static void 241 default_harvest(struct rndtest_state *rsp, void *buf, u_int count) 242 { 243 u_int32_t *p = (u_int32_t *)buf; 244 for (count /= sizeof (u_int32_t); count; count--) 245 add_true_randomness(*p++); 246 } 247 248 /* 249 * Attach an interface that successfully probed. 250 */ 251 static int 252 hifn_attach(device_t dev) 253 { 254 struct hifn_softc *sc = device_get_softc(dev); 255 u_int32_t cmd; 256 caddr_t kva; 257 int rseg, rid; 258 char rbase; 259 u_int16_t ena, rev; 260 261 KASSERT(sc != NULL, ("hifn_attach: null software carrier!")); 262 bzero(sc, sizeof (*sc)); 263 sc->sc_dev = dev; 264 265 /* XXX handle power management */ 266 267 /* 268 * The 7951 has a random number generator and 269 * public key support; note this. 270 */ 271 if (pci_get_vendor(dev) == PCI_VENDOR_HIFN && 272 pci_get_device(dev) == PCI_PRODUCT_HIFN_7951) 273 sc->sc_flags = HIFN_HAS_RNG | HIFN_HAS_PUBLIC; 274 /* 275 * The 7811 has a random number generator and 276 * we also note it's identity 'cuz of some quirks. 277 */ 278 if (pci_get_vendor(dev) == PCI_VENDOR_HIFN && 279 pci_get_device(dev) == PCI_PRODUCT_HIFN_7811) 280 sc->sc_flags |= HIFN_IS_7811 | HIFN_HAS_RNG; 281 282 /* 283 * Configure support for memory-mapped access to 284 * registers and for DMA operations. 285 */ 286 #define PCIM_ENA (PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN) 287 cmd = pci_read_config(dev, PCIR_COMMAND, 4); 288 cmd |= PCIM_ENA; 289 pci_write_config(dev, PCIR_COMMAND, cmd, 4); 290 cmd = pci_read_config(dev, PCIR_COMMAND, 4); 291 if ((cmd & PCIM_ENA) != PCIM_ENA) { 292 device_printf(dev, "failed to enable %s\n", 293 (cmd & PCIM_ENA) == 0 ? 294 "memory mapping & bus mastering" : 295 (cmd & PCIM_CMD_MEMEN) == 0 ? 296 "memory mapping" : "bus mastering"); 297 goto fail_pci; 298 } 299 #undef PCIM_ENA 300 301 /* 302 * Setup PCI resources. Note that we record the bus 303 * tag and handle for each register mapping, this is 304 * used by the READ_REG_0, WRITE_REG_0, READ_REG_1, 305 * and WRITE_REG_1 macros throughout the driver. 306 */ 307 rid = HIFN_BAR0; 308 sc->sc_bar0res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, 309 0, ~0, 1, RF_ACTIVE); 310 if (sc->sc_bar0res == NULL) { 311 device_printf(dev, "cannot map bar%d register space\n", 0); 312 goto fail_pci; 313 } 314 sc->sc_st0 = rman_get_bustag(sc->sc_bar0res); 315 sc->sc_sh0 = rman_get_bushandle(sc->sc_bar0res); 316 sc->sc_bar0_lastreg = (bus_size_t) -1; 317 318 rid = HIFN_BAR1; 319 sc->sc_bar1res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, 320 0, ~0, 1, RF_ACTIVE); 321 if (sc->sc_bar1res == NULL) { 322 device_printf(dev, "cannot map bar%d register space\n", 1); 323 goto fail_io0; 324 } 325 sc->sc_st1 = rman_get_bustag(sc->sc_bar1res); 326 sc->sc_sh1 = rman_get_bushandle(sc->sc_bar1res); 327 sc->sc_bar1_lastreg = (bus_size_t) -1; 328 329 hifn_set_retry(sc); 330 331 /* 332 * Setup the area where the Hifn DMA's descriptors 333 * and associated data structures. 334 */ 335 if (bus_dma_tag_create(NULL, /* parent */ 336 1, 0, /* alignment,boundary */ 337 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 338 BUS_SPACE_MAXADDR, /* highaddr */ 339 NULL, NULL, /* filter, filterarg */ 340 HIFN_MAX_DMALEN, /* maxsize */ 341 MAX_SCATTER, /* nsegments */ 342 HIFN_MAX_SEGLEN, /* maxsegsize */ 343 BUS_DMA_ALLOCNOW, /* flags */ 344 &sc->sc_dmat)) { 345 device_printf(dev, "cannot allocate DMA tag\n"); 346 goto fail_io1; 347 } 348 if (bus_dmamap_create(sc->sc_dmat, BUS_DMA_NOWAIT, &sc->sc_dmamap)) { 349 device_printf(dev, "cannot create dma map\n"); 350 bus_dma_tag_destroy(sc->sc_dmat); 351 goto fail_io1; 352 } 353 if (bus_dmamem_alloc(sc->sc_dmat, (void**) &kva, BUS_DMA_NOWAIT, &sc->sc_dmamap)) { 354 device_printf(dev, "cannot alloc dma buffer\n"); 355 bus_dmamap_destroy(sc->sc_dmat, sc->sc_dmamap); 356 bus_dma_tag_destroy(sc->sc_dmat); 357 goto fail_io1; 358 } 359 if (bus_dmamap_load(sc->sc_dmat, sc->sc_dmamap, kva, 360 sizeof (*sc->sc_dma), 361 hifn_dmamap_cb, &sc->sc_dma_physaddr, 362 BUS_DMA_NOWAIT)) { 363 device_printf(dev, "cannot load dma map\n"); 364 bus_dmamem_free(sc->sc_dmat, kva, sc->sc_dmamap); 365 bus_dmamap_destroy(sc->sc_dmat, sc->sc_dmamap); 366 bus_dma_tag_destroy(sc->sc_dmat); 367 goto fail_io1; 368 } 369 sc->sc_dma = (struct hifn_dma *)kva; 370 bzero(sc->sc_dma, sizeof(*sc->sc_dma)); 371 372 KASSERT(sc->sc_st0 != NULL, ("hifn_attach: null bar0 tag!")); 373 KASSERT(sc->sc_sh0 != NULL, ("hifn_attach: null bar0 handle!")); 374 KASSERT(sc->sc_st1 != NULL, ("hifn_attach: null bar1 tag!")); 375 KASSERT(sc->sc_sh1 != NULL, ("hifn_attach: null bar1 handle!")); 376 377 /* 378 * Reset the board and do the ``secret handshake'' 379 * to enable the crypto support. Then complete the 380 * initialization procedure by setting up the interrupt 381 * and hooking in to the system crypto support so we'll 382 * get used for system services like the crypto device, 383 * IPsec, RNG device, etc. 384 */ 385 hifn_reset_board(sc, 0); 386 387 if (hifn_enable_crypto(sc) != 0) { 388 device_printf(dev, "crypto enabling failed\n"); 389 goto fail_mem; 390 } 391 hifn_reset_puc(sc); 392 393 hifn_init_dma(sc); 394 hifn_init_pci_registers(sc); 395 396 if (hifn_ramtype(sc)) 397 goto fail_mem; 398 399 if (sc->sc_drammodel == 0) 400 hifn_sramsize(sc); 401 else 402 hifn_dramsize(sc); 403 404 /* 405 * Workaround for NetSec 7751 rev A: half ram size because two 406 * of the address lines were left floating 407 */ 408 if (pci_get_vendor(dev) == PCI_VENDOR_NETSEC && 409 pci_get_device(dev) == PCI_PRODUCT_NETSEC_7751 && 410 pci_get_revid(dev) == 0x61) /*XXX???*/ 411 sc->sc_ramsize >>= 1; 412 413 /* 414 * Arrange the interrupt line. 415 */ 416 rid = 0; 417 sc->sc_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 418 0, ~0, 1, RF_SHAREABLE|RF_ACTIVE); 419 if (sc->sc_irq == NULL) { 420 device_printf(dev, "could not map interrupt\n"); 421 goto fail_mem; 422 } 423 /* 424 * NB: Network code assumes we are blocked with splimp() 425 * so make sure the IRQ is marked appropriately. 426 */ 427 if (bus_setup_intr(dev, sc->sc_irq, INTR_TYPE_NET, 428 hifn_intr, sc, &sc->sc_intrhand)) { 429 device_printf(dev, "could not setup interrupt\n"); 430 goto fail_intr2; 431 } 432 433 hifn_sessions(sc); 434 435 /* 436 * NB: Keep only the low 16 bits; this masks the chip id 437 * from the 7951. 438 */ 439 rev = READ_REG_1(sc, HIFN_1_REVID) & 0xffff; 440 441 rseg = sc->sc_ramsize / 1024; 442 rbase = 'K'; 443 if (sc->sc_ramsize >= (1024 * 1024)) { 444 rbase = 'M'; 445 rseg /= 1024; 446 } 447 device_printf(sc->sc_dev, "%s, rev %u, %d%cB %cram, %u sessions\n", 448 hifn_partname(sc), rev, 449 rseg, rbase, sc->sc_drammodel ? 'd' : 's', 450 sc->sc_maxses); 451 452 sc->sc_cid = crypto_get_driverid(0); 453 if (sc->sc_cid < 0) { 454 device_printf(dev, "could not get crypto driver id\n"); 455 goto fail_intr; 456 } 457 458 WRITE_REG_0(sc, HIFN_0_PUCNFG, 459 READ_REG_0(sc, HIFN_0_PUCNFG) | HIFN_PUCNFG_CHIPID); 460 ena = READ_REG_0(sc, HIFN_0_PUSTAT) & HIFN_PUSTAT_CHIPENA; 461 462 switch (ena) { 463 case HIFN_PUSTAT_ENA_2: 464 crypto_register(sc->sc_cid, CRYPTO_3DES_CBC, 0, 0, 465 hifn_newsession, hifn_freesession, hifn_process, sc); 466 crypto_register(sc->sc_cid, CRYPTO_ARC4, 0, 0, 467 hifn_newsession, hifn_freesession, hifn_process, sc); 468 /*FALLTHROUGH*/ 469 case HIFN_PUSTAT_ENA_1: 470 crypto_register(sc->sc_cid, CRYPTO_MD5, 0, 0, 471 hifn_newsession, hifn_freesession, hifn_process, sc); 472 crypto_register(sc->sc_cid, CRYPTO_SHA1, 0, 0, 473 hifn_newsession, hifn_freesession, hifn_process, sc); 474 crypto_register(sc->sc_cid, CRYPTO_MD5_HMAC, 0, 0, 475 hifn_newsession, hifn_freesession, hifn_process, sc); 476 crypto_register(sc->sc_cid, CRYPTO_SHA1_HMAC, 0, 0, 477 hifn_newsession, hifn_freesession, hifn_process, sc); 478 crypto_register(sc->sc_cid, CRYPTO_DES_CBC, 0, 0, 479 hifn_newsession, hifn_freesession, hifn_process, sc); 480 break; 481 } 482 483 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 484 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 485 486 if (sc->sc_flags & (HIFN_HAS_PUBLIC | HIFN_HAS_RNG)) 487 hifn_init_pubrng(sc); 488 489 /* NB: 1 means the callout runs w/o Giant locked */ 490 callout_init(&sc->sc_tickto); 491 callout_reset(&sc->sc_tickto, hz, hifn_tick, sc); 492 493 return (0); 494 495 fail_intr: 496 bus_teardown_intr(dev, sc->sc_irq, sc->sc_intrhand); 497 fail_intr2: 498 /* XXX don't store rid */ 499 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq); 500 fail_mem: 501 bus_dmamap_unload(sc->sc_dmat, sc->sc_dmamap); 502 bus_dmamem_free(sc->sc_dmat, sc->sc_dma, sc->sc_dmamap); 503 bus_dmamap_destroy(sc->sc_dmat, sc->sc_dmamap); 504 bus_dma_tag_destroy(sc->sc_dmat); 505 506 /* Turn off DMA polling */ 507 WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET | 508 HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE); 509 fail_io1: 510 bus_release_resource(dev, SYS_RES_MEMORY, HIFN_BAR1, sc->sc_bar1res); 511 fail_io0: 512 bus_release_resource(dev, SYS_RES_MEMORY, HIFN_BAR0, sc->sc_bar0res); 513 fail_pci: 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 int s; 525 526 KASSERT(sc != NULL, ("hifn_detach: null software carrier!")); 527 528 s = splimp(); 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 splx(s); 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 #ifndef HIFN_NO_RNG 667 /* Enable the rng, if available */ 668 if (sc->sc_flags & HIFN_HAS_RNG) { 669 if (sc->sc_flags & HIFN_IS_7811) { 670 r = READ_REG_1(sc, HIFN_1_7811_RNGENA); 671 if (r & HIFN_7811_RNGENA_ENA) { 672 r &= ~HIFN_7811_RNGENA_ENA; 673 WRITE_REG_1(sc, HIFN_1_7811_RNGENA, r); 674 } 675 WRITE_REG_1(sc, HIFN_1_7811_RNGCFG, 676 HIFN_7811_RNGCFG_DEFL); 677 r |= HIFN_7811_RNGENA_ENA; 678 WRITE_REG_1(sc, HIFN_1_7811_RNGENA, r); 679 } else 680 WRITE_REG_1(sc, HIFN_1_RNG_CONFIG, 681 READ_REG_1(sc, HIFN_1_RNG_CONFIG) | 682 HIFN_RNGCFG_ENA); 683 684 sc->sc_rngfirst = 1; 685 if (hz >= 100) 686 sc->sc_rnghz = hz / 100; 687 else 688 sc->sc_rnghz = 1; 689 /* NB: 1 means the callout runs w/o Giant locked */ 690 callout_init(&sc->sc_rngto); 691 callout_reset(&sc->sc_rngto, sc->sc_rnghz, hifn_rng, sc); 692 } 693 #endif 694 695 /* Enable public key engine, if available */ 696 if (sc->sc_flags & HIFN_HAS_PUBLIC) { 697 WRITE_REG_1(sc, HIFN_1_PUB_IEN, HIFN_PUBIEN_DONE); 698 sc->sc_dmaier |= HIFN_DMAIER_PUBDONE; 699 WRITE_REG_1(sc, HIFN_1_DMA_IER, sc->sc_dmaier); 700 } 701 702 return (0); 703 } 704 705 #ifndef HIFN_NO_RNG 706 static void 707 hifn_rng(void *vsc) 708 { 709 #define RANDOM_BITS(n) (n)*sizeof (u_int32_t), (n)*sizeof (u_int32_t)*NBBY, 0 710 struct hifn_softc *sc = vsc; 711 u_int32_t sts, num[2]; 712 int i; 713 714 if (sc->sc_flags & HIFN_IS_7811) { 715 for (i = 0; i < 5; i++) { 716 sts = READ_REG_1(sc, HIFN_1_7811_RNGSTS); 717 if (sts & HIFN_7811_RNGSTS_UFL) { 718 device_printf(sc->sc_dev, 719 "RNG underflow: disabling\n"); 720 return; 721 } 722 if ((sts & HIFN_7811_RNGSTS_RDY) == 0) 723 break; 724 725 /* 726 * There are at least two words in the RNG FIFO 727 * at this point. 728 */ 729 num[0] = READ_REG_1(sc, HIFN_1_7811_RNGDAT); 730 num[1] = READ_REG_1(sc, HIFN_1_7811_RNGDAT); 731 /* NB: discard first data read */ 732 if (sc->sc_rngfirst) 733 sc->sc_rngfirst = 0; 734 else 735 (*sc->sc_harvest)(sc->sc_rndtest, 736 num, sizeof (num)); 737 } 738 } else { 739 num[0] = READ_REG_1(sc, HIFN_1_RNG_DATA); 740 741 /* NB: discard first data read */ 742 if (sc->sc_rngfirst) 743 sc->sc_rngfirst = 0; 744 else 745 (*sc->sc_harvest)(sc->sc_rndtest, 746 num, sizeof (num[0])); 747 } 748 749 callout_reset(&sc->sc_rngto, sc->sc_rnghz, hifn_rng, sc); 750 #undef RANDOM_BITS 751 } 752 #endif 753 754 static void 755 hifn_puc_wait(struct hifn_softc *sc) 756 { 757 int i; 758 759 for (i = 5000; i > 0; i--) { 760 DELAY(1); 761 if (!(READ_REG_0(sc, HIFN_0_PUCTRL) & HIFN_PUCTRL_RESET)) 762 break; 763 } 764 if (!i) 765 device_printf(sc->sc_dev, "proc unit did not reset\n"); 766 } 767 768 /* 769 * Reset the processing unit. 770 */ 771 static void 772 hifn_reset_puc(struct hifn_softc *sc) 773 { 774 /* Reset processing unit */ 775 WRITE_REG_0(sc, HIFN_0_PUCTRL, HIFN_PUCTRL_DMAENA); 776 hifn_puc_wait(sc); 777 } 778 779 /* 780 * Set the Retry and TRDY registers; note that we set them to 781 * zero because the 7811 locks up when forced to retry (section 782 * 3.6 of "Specification Update SU-0014-04". Not clear if we 783 * should do this for all Hifn parts, but it doesn't seem to hurt. 784 */ 785 static void 786 hifn_set_retry(struct hifn_softc *sc) 787 { 788 /* NB: RETRY only responds to 8-bit reads/writes */ 789 pci_write_config(sc->sc_dev, HIFN_RETRY_TIMEOUT, 0, 1); 790 pci_write_config(sc->sc_dev, HIFN_TRDY_TIMEOUT, 0, 4); 791 } 792 793 /* 794 * Resets the board. Values in the regesters are left as is 795 * from the reset (i.e. initial values are assigned elsewhere). 796 */ 797 static void 798 hifn_reset_board(struct hifn_softc *sc, int full) 799 { 800 u_int32_t reg; 801 802 /* 803 * Set polling in the DMA configuration register to zero. 0x7 avoids 804 * resetting the board and zeros out the other fields. 805 */ 806 WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET | 807 HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE); 808 809 /* 810 * Now that polling has been disabled, we have to wait 1 ms 811 * before resetting the board. 812 */ 813 DELAY(1000); 814 815 /* Reset the DMA unit */ 816 if (full) { 817 WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MODE); 818 DELAY(1000); 819 } else { 820 WRITE_REG_1(sc, HIFN_1_DMA_CNFG, 821 HIFN_DMACNFG_MODE | HIFN_DMACNFG_MSTRESET); 822 hifn_reset_puc(sc); 823 } 824 825 KASSERT(sc->sc_dma != NULL, ("hifn_reset_board: null DMA tag!")); 826 bzero(sc->sc_dma, sizeof(*sc->sc_dma)); 827 828 /* Bring dma unit out of reset */ 829 WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET | 830 HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE); 831 832 hifn_puc_wait(sc); 833 hifn_set_retry(sc); 834 835 if (sc->sc_flags & HIFN_IS_7811) { 836 for (reg = 0; reg < 1000; reg++) { 837 if (READ_REG_1(sc, HIFN_1_7811_MIPSRST) & 838 HIFN_MIPSRST_CRAMINIT) 839 break; 840 DELAY(1000); 841 } 842 if (reg == 1000) 843 printf(": cram init timeout\n"); 844 } 845 } 846 847 static u_int32_t 848 hifn_next_signature(u_int32_t a, u_int cnt) 849 { 850 int i; 851 u_int32_t v; 852 853 for (i = 0; i < cnt; i++) { 854 855 /* get the parity */ 856 v = a & 0x80080125; 857 v ^= v >> 16; 858 v ^= v >> 8; 859 v ^= v >> 4; 860 v ^= v >> 2; 861 v ^= v >> 1; 862 863 a = (v & 1) ^ (a << 1); 864 } 865 866 return a; 867 } 868 869 struct pci2id { 870 u_short pci_vendor; 871 u_short pci_prod; 872 char card_id[13]; 873 }; 874 static struct pci2id pci2id[] = { 875 { 876 PCI_VENDOR_HIFN, 877 PCI_PRODUCT_HIFN_7951, 878 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 879 0x00, 0x00, 0x00, 0x00, 0x00 } 880 }, { 881 PCI_VENDOR_NETSEC, 882 PCI_PRODUCT_NETSEC_7751, 883 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 884 0x00, 0x00, 0x00, 0x00, 0x00 } 885 }, { 886 PCI_VENDOR_INVERTEX, 887 PCI_PRODUCT_INVERTEX_AEON, 888 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 889 0x00, 0x00, 0x00, 0x00, 0x00 } 890 }, { 891 PCI_VENDOR_HIFN, 892 PCI_PRODUCT_HIFN_7811, 893 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 894 0x00, 0x00, 0x00, 0x00, 0x00 } 895 }, { 896 /* 897 * Other vendors share this PCI ID as well, such as 898 * http://www.powercrypt.com, and obviously they also 899 * use the same key. 900 */ 901 PCI_VENDOR_HIFN, 902 PCI_PRODUCT_HIFN_7751, 903 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 904 0x00, 0x00, 0x00, 0x00, 0x00 } 905 }, 906 }; 907 908 /* 909 * Checks to see if crypto is already enabled. If crypto isn't enable, 910 * "hifn_enable_crypto" is called to enable it. The check is important, 911 * as enabling crypto twice will lock the board. 912 */ 913 static int 914 hifn_enable_crypto(struct hifn_softc *sc) 915 { 916 u_int32_t dmacfg, ramcfg, encl, addr, i; 917 char *offtbl = NULL; 918 919 for (i = 0; i < sizeof(pci2id)/sizeof(pci2id[0]); i++) { 920 if (pci2id[i].pci_vendor == pci_get_vendor(sc->sc_dev) && 921 pci2id[i].pci_prod == pci_get_device(sc->sc_dev)) { 922 offtbl = pci2id[i].card_id; 923 break; 924 } 925 } 926 if (offtbl == NULL) { 927 device_printf(sc->sc_dev, "Unknown card!\n"); 928 return (1); 929 } 930 931 ramcfg = READ_REG_0(sc, HIFN_0_PUCNFG); 932 dmacfg = READ_REG_1(sc, HIFN_1_DMA_CNFG); 933 934 /* 935 * The RAM config register's encrypt level bit needs to be set before 936 * every read performed on the encryption level register. 937 */ 938 WRITE_REG_0(sc, HIFN_0_PUCNFG, ramcfg | HIFN_PUCNFG_CHIPID); 939 940 encl = READ_REG_0(sc, HIFN_0_PUSTAT) & HIFN_PUSTAT_CHIPENA; 941 942 /* 943 * Make sure we don't re-unlock. Two unlocks kills chip until the 944 * next reboot. 945 */ 946 if (encl == HIFN_PUSTAT_ENA_1 || encl == HIFN_PUSTAT_ENA_2) { 947 #ifdef HIFN_DEBUG 948 if (hifn_debug) 949 device_printf(sc->sc_dev, 950 "Strong crypto already enabled!\n"); 951 #endif 952 goto report; 953 } 954 955 if (encl != 0 && encl != HIFN_PUSTAT_ENA_0) { 956 #ifdef HIFN_DEBUG 957 if (hifn_debug) 958 device_printf(sc->sc_dev, 959 "Unknown encryption level 0x%x\n", encl); 960 #endif 961 return 1; 962 } 963 964 WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_UNLOCK | 965 HIFN_DMACNFG_MSTRESET | HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE); 966 DELAY(1000); 967 addr = READ_REG_1(sc, HIFN_UNLOCK_SECRET1); 968 DELAY(1000); 969 WRITE_REG_1(sc, HIFN_UNLOCK_SECRET2, 0); 970 DELAY(1000); 971 972 for (i = 0; i <= 12; i++) { 973 addr = hifn_next_signature(addr, offtbl[i] + 0x101); 974 WRITE_REG_1(sc, HIFN_UNLOCK_SECRET2, addr); 975 976 DELAY(1000); 977 } 978 979 WRITE_REG_0(sc, HIFN_0_PUCNFG, ramcfg | HIFN_PUCNFG_CHIPID); 980 encl = READ_REG_0(sc, HIFN_0_PUSTAT) & HIFN_PUSTAT_CHIPENA; 981 982 #ifdef HIFN_DEBUG 983 if (hifn_debug) { 984 if (encl != HIFN_PUSTAT_ENA_1 && encl != HIFN_PUSTAT_ENA_2) 985 device_printf(sc->sc_dev, "Engine is permanently " 986 "locked until next system reset!\n"); 987 else 988 device_printf(sc->sc_dev, "Engine enabled " 989 "successfully!\n"); 990 } 991 #endif 992 993 report: 994 WRITE_REG_0(sc, HIFN_0_PUCNFG, ramcfg); 995 WRITE_REG_1(sc, HIFN_1_DMA_CNFG, dmacfg); 996 997 switch (encl) { 998 case HIFN_PUSTAT_ENA_1: 999 case HIFN_PUSTAT_ENA_2: 1000 break; 1001 case HIFN_PUSTAT_ENA_0: 1002 default: 1003 device_printf(sc->sc_dev, "disabled"); 1004 break; 1005 } 1006 1007 return 0; 1008 } 1009 1010 /* 1011 * Give initial values to the registers listed in the "Register Space" 1012 * section of the HIFN Software Development reference manual. 1013 */ 1014 static void 1015 hifn_init_pci_registers(struct hifn_softc *sc) 1016 { 1017 /* write fixed values needed by the Initialization registers */ 1018 WRITE_REG_0(sc, HIFN_0_PUCTRL, HIFN_PUCTRL_DMAENA); 1019 WRITE_REG_0(sc, HIFN_0_FIFOCNFG, HIFN_FIFOCNFG_THRESHOLD); 1020 WRITE_REG_0(sc, HIFN_0_PUIER, HIFN_PUIER_DSTOVER); 1021 1022 /* write all 4 ring address registers */ 1023 WRITE_REG_1(sc, HIFN_1_DMA_CRAR, sc->sc_dma_physaddr + 1024 offsetof(struct hifn_dma, cmdr[0])); 1025 WRITE_REG_1(sc, HIFN_1_DMA_SRAR, sc->sc_dma_physaddr + 1026 offsetof(struct hifn_dma, srcr[0])); 1027 WRITE_REG_1(sc, HIFN_1_DMA_DRAR, sc->sc_dma_physaddr + 1028 offsetof(struct hifn_dma, dstr[0])); 1029 WRITE_REG_1(sc, HIFN_1_DMA_RRAR, sc->sc_dma_physaddr + 1030 offsetof(struct hifn_dma, resr[0])); 1031 1032 DELAY(2000); 1033 1034 /* write status register */ 1035 WRITE_REG_1(sc, HIFN_1_DMA_CSR, 1036 HIFN_DMACSR_D_CTRL_DIS | HIFN_DMACSR_R_CTRL_DIS | 1037 HIFN_DMACSR_S_CTRL_DIS | HIFN_DMACSR_C_CTRL_DIS | 1038 HIFN_DMACSR_D_ABORT | HIFN_DMACSR_D_DONE | HIFN_DMACSR_D_LAST | 1039 HIFN_DMACSR_D_WAIT | HIFN_DMACSR_D_OVER | 1040 HIFN_DMACSR_R_ABORT | HIFN_DMACSR_R_DONE | HIFN_DMACSR_R_LAST | 1041 HIFN_DMACSR_R_WAIT | HIFN_DMACSR_R_OVER | 1042 HIFN_DMACSR_S_ABORT | HIFN_DMACSR_S_DONE | HIFN_DMACSR_S_LAST | 1043 HIFN_DMACSR_S_WAIT | 1044 HIFN_DMACSR_C_ABORT | HIFN_DMACSR_C_DONE | HIFN_DMACSR_C_LAST | 1045 HIFN_DMACSR_C_WAIT | 1046 HIFN_DMACSR_ENGINE | 1047 ((sc->sc_flags & HIFN_HAS_PUBLIC) ? 1048 HIFN_DMACSR_PUBDONE : 0) | 1049 ((sc->sc_flags & HIFN_IS_7811) ? 1050 HIFN_DMACSR_ILLW | HIFN_DMACSR_ILLR : 0)); 1051 1052 sc->sc_d_busy = sc->sc_r_busy = sc->sc_s_busy = sc->sc_c_busy = 0; 1053 sc->sc_dmaier |= HIFN_DMAIER_R_DONE | HIFN_DMAIER_C_ABORT | 1054 HIFN_DMAIER_D_OVER | HIFN_DMAIER_R_OVER | 1055 HIFN_DMAIER_S_ABORT | HIFN_DMAIER_D_ABORT | HIFN_DMAIER_R_ABORT | 1056 ((sc->sc_flags & HIFN_IS_7811) ? 1057 HIFN_DMAIER_ILLW | HIFN_DMAIER_ILLR : 0); 1058 sc->sc_dmaier &= ~HIFN_DMAIER_C_WAIT; 1059 WRITE_REG_1(sc, HIFN_1_DMA_IER, sc->sc_dmaier); 1060 1061 WRITE_REG_0(sc, HIFN_0_PUCNFG, HIFN_PUCNFG_COMPSING | 1062 HIFN_PUCNFG_DRFR_128 | HIFN_PUCNFG_TCALLPHASES | 1063 HIFN_PUCNFG_TCDRVTOTEM | HIFN_PUCNFG_BUS32 | 1064 (sc->sc_drammodel ? HIFN_PUCNFG_DRAM : HIFN_PUCNFG_SRAM)); 1065 1066 WRITE_REG_0(sc, HIFN_0_PUISR, HIFN_PUISR_DSTOVER); 1067 WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET | 1068 HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE | HIFN_DMACNFG_LAST | 1069 ((HIFN_POLL_FREQUENCY << 16 ) & HIFN_DMACNFG_POLLFREQ) | 1070 ((HIFN_POLL_SCALAR << 8) & HIFN_DMACNFG_POLLINVAL)); 1071 } 1072 1073 /* 1074 * The maximum number of sessions supported by the card 1075 * is dependent on the amount of context ram, which 1076 * encryption algorithms are enabled, and how compression 1077 * is configured. This should be configured before this 1078 * routine is called. 1079 */ 1080 static void 1081 hifn_sessions(struct hifn_softc *sc) 1082 { 1083 u_int32_t pucnfg; 1084 int ctxsize; 1085 1086 pucnfg = READ_REG_0(sc, HIFN_0_PUCNFG); 1087 1088 if (pucnfg & HIFN_PUCNFG_COMPSING) { 1089 if (pucnfg & HIFN_PUCNFG_ENCCNFG) 1090 ctxsize = 128; 1091 else 1092 ctxsize = 512; 1093 sc->sc_maxses = 1 + 1094 ((sc->sc_ramsize - 32768) / ctxsize); 1095 } else 1096 sc->sc_maxses = sc->sc_ramsize / 16384; 1097 1098 if (sc->sc_maxses > 2048) 1099 sc->sc_maxses = 2048; 1100 } 1101 1102 /* 1103 * Determine ram type (sram or dram). Board should be just out of a reset 1104 * state when this is called. 1105 */ 1106 static int 1107 hifn_ramtype(struct hifn_softc *sc) 1108 { 1109 u_int8_t data[8], dataexpect[8]; 1110 int i; 1111 1112 for (i = 0; i < sizeof(data); i++) 1113 data[i] = dataexpect[i] = 0x55; 1114 if (hifn_writeramaddr(sc, 0, data)) 1115 return (-1); 1116 if (hifn_readramaddr(sc, 0, data)) 1117 return (-1); 1118 if (bcmp(data, dataexpect, sizeof(data)) != 0) { 1119 sc->sc_drammodel = 1; 1120 return (0); 1121 } 1122 1123 for (i = 0; i < sizeof(data); i++) 1124 data[i] = dataexpect[i] = 0xaa; 1125 if (hifn_writeramaddr(sc, 0, data)) 1126 return (-1); 1127 if (hifn_readramaddr(sc, 0, data)) 1128 return (-1); 1129 if (bcmp(data, dataexpect, sizeof(data)) != 0) { 1130 sc->sc_drammodel = 1; 1131 return (0); 1132 } 1133 1134 return (0); 1135 } 1136 1137 #define HIFN_SRAM_MAX (32 << 20) 1138 #define HIFN_SRAM_STEP_SIZE 16384 1139 #define HIFN_SRAM_GRANULARITY (HIFN_SRAM_MAX / HIFN_SRAM_STEP_SIZE) 1140 1141 static int 1142 hifn_sramsize(struct hifn_softc *sc) 1143 { 1144 u_int32_t a; 1145 u_int8_t data[8]; 1146 u_int8_t dataexpect[sizeof(data)]; 1147 int32_t i; 1148 1149 for (i = 0; i < sizeof(data); i++) 1150 data[i] = dataexpect[i] = i ^ 0x5a; 1151 1152 for (i = HIFN_SRAM_GRANULARITY - 1; i >= 0; i--) { 1153 a = i * HIFN_SRAM_STEP_SIZE; 1154 bcopy(&i, data, sizeof(i)); 1155 hifn_writeramaddr(sc, a, data); 1156 } 1157 1158 for (i = 0; i < HIFN_SRAM_GRANULARITY; i++) { 1159 a = i * HIFN_SRAM_STEP_SIZE; 1160 bcopy(&i, dataexpect, sizeof(i)); 1161 if (hifn_readramaddr(sc, a, data) < 0) 1162 return (0); 1163 if (bcmp(data, dataexpect, sizeof(data)) != 0) 1164 return (0); 1165 sc->sc_ramsize = a + HIFN_SRAM_STEP_SIZE; 1166 } 1167 1168 return (0); 1169 } 1170 1171 /* 1172 * XXX For dram boards, one should really try all of the 1173 * HIFN_PUCNFG_DSZ_*'s. This just assumes that PUCNFG 1174 * is already set up correctly. 1175 */ 1176 static int 1177 hifn_dramsize(struct hifn_softc *sc) 1178 { 1179 u_int32_t cnfg; 1180 1181 cnfg = READ_REG_0(sc, HIFN_0_PUCNFG) & 1182 HIFN_PUCNFG_DRAMMASK; 1183 sc->sc_ramsize = 1 << ((cnfg >> 13) + 18); 1184 return (0); 1185 } 1186 1187 static void 1188 hifn_alloc_slot(struct hifn_softc *sc, int *cmdp, int *srcp, int *dstp, int *resp) 1189 { 1190 struct hifn_dma *dma = sc->sc_dma; 1191 1192 if (dma->cmdi == HIFN_D_CMD_RSIZE) { 1193 dma->cmdi = 0; 1194 dma->cmdr[HIFN_D_CMD_RSIZE].l = htole32(HIFN_D_VALID | 1195 HIFN_D_JUMP | HIFN_D_MASKDONEIRQ); 1196 HIFN_CMDR_SYNC(sc, HIFN_D_CMD_RSIZE, 1197 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1198 } 1199 *cmdp = dma->cmdi++; 1200 dma->cmdk = dma->cmdi; 1201 1202 if (dma->srci == HIFN_D_SRC_RSIZE) { 1203 dma->srci = 0; 1204 dma->srcr[HIFN_D_SRC_RSIZE].l = htole32(HIFN_D_VALID | 1205 HIFN_D_JUMP | HIFN_D_MASKDONEIRQ); 1206 HIFN_SRCR_SYNC(sc, HIFN_D_SRC_RSIZE, 1207 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1208 } 1209 *srcp = dma->srci++; 1210 dma->srck = dma->srci; 1211 1212 if (dma->dsti == HIFN_D_DST_RSIZE) { 1213 dma->dsti = 0; 1214 dma->dstr[HIFN_D_DST_RSIZE].l = htole32(HIFN_D_VALID | 1215 HIFN_D_JUMP | HIFN_D_MASKDONEIRQ); 1216 HIFN_DSTR_SYNC(sc, HIFN_D_DST_RSIZE, 1217 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1218 } 1219 *dstp = dma->dsti++; 1220 dma->dstk = dma->dsti; 1221 1222 if (dma->resi == HIFN_D_RES_RSIZE) { 1223 dma->resi = 0; 1224 dma->resr[HIFN_D_RES_RSIZE].l = htole32(HIFN_D_VALID | 1225 HIFN_D_JUMP | HIFN_D_MASKDONEIRQ); 1226 HIFN_RESR_SYNC(sc, HIFN_D_RES_RSIZE, 1227 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1228 } 1229 *resp = dma->resi++; 1230 dma->resk = dma->resi; 1231 } 1232 1233 static int 1234 hifn_writeramaddr(struct hifn_softc *sc, int addr, u_int8_t *data) 1235 { 1236 struct hifn_dma *dma = sc->sc_dma; 1237 hifn_base_command_t wc; 1238 const u_int32_t masks = HIFN_D_VALID | HIFN_D_LAST | HIFN_D_MASKDONEIRQ; 1239 int r, cmdi, resi, srci, dsti; 1240 1241 wc.masks = htole16(3 << 13); 1242 wc.session_num = htole16(addr >> 14); 1243 wc.total_source_count = htole16(8); 1244 wc.total_dest_count = htole16(addr & 0x3fff); 1245 1246 hifn_alloc_slot(sc, &cmdi, &srci, &dsti, &resi); 1247 1248 WRITE_REG_1(sc, HIFN_1_DMA_CSR, 1249 HIFN_DMACSR_C_CTRL_ENA | HIFN_DMACSR_S_CTRL_ENA | 1250 HIFN_DMACSR_D_CTRL_ENA | HIFN_DMACSR_R_CTRL_ENA); 1251 1252 /* build write command */ 1253 bzero(dma->command_bufs[cmdi], HIFN_MAX_COMMAND); 1254 *(hifn_base_command_t *)dma->command_bufs[cmdi] = wc; 1255 bcopy(data, &dma->test_src, sizeof(dma->test_src)); 1256 1257 dma->srcr[srci].p = htole32(sc->sc_dma_physaddr 1258 + offsetof(struct hifn_dma, test_src)); 1259 dma->dstr[dsti].p = htole32(sc->sc_dma_physaddr 1260 + offsetof(struct hifn_dma, test_dst)); 1261 1262 dma->cmdr[cmdi].l = htole32(16 | masks); 1263 dma->srcr[srci].l = htole32(8 | masks); 1264 dma->dstr[dsti].l = htole32(4 | masks); 1265 dma->resr[resi].l = htole32(4 | masks); 1266 1267 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 1268 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1269 1270 for (r = 10000; r >= 0; r--) { 1271 DELAY(10); 1272 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 1273 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1274 if ((dma->resr[resi].l & htole32(HIFN_D_VALID)) == 0) 1275 break; 1276 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 1277 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1278 } 1279 if (r == 0) { 1280 device_printf(sc->sc_dev, "writeramaddr -- " 1281 "result[%d](addr %d) still valid\n", resi, addr); 1282 r = -1; 1283 return (-1); 1284 } else 1285 r = 0; 1286 1287 WRITE_REG_1(sc, HIFN_1_DMA_CSR, 1288 HIFN_DMACSR_C_CTRL_DIS | HIFN_DMACSR_S_CTRL_DIS | 1289 HIFN_DMACSR_D_CTRL_DIS | HIFN_DMACSR_R_CTRL_DIS); 1290 1291 return (r); 1292 } 1293 1294 static int 1295 hifn_readramaddr(struct hifn_softc *sc, int addr, u_int8_t *data) 1296 { 1297 struct hifn_dma *dma = sc->sc_dma; 1298 hifn_base_command_t rc; 1299 const u_int32_t masks = HIFN_D_VALID | HIFN_D_LAST | HIFN_D_MASKDONEIRQ; 1300 int r, cmdi, srci, dsti, resi; 1301 1302 rc.masks = htole16(2 << 13); 1303 rc.session_num = htole16(addr >> 14); 1304 rc.total_source_count = htole16(addr & 0x3fff); 1305 rc.total_dest_count = htole16(8); 1306 1307 hifn_alloc_slot(sc, &cmdi, &srci, &dsti, &resi); 1308 1309 WRITE_REG_1(sc, HIFN_1_DMA_CSR, 1310 HIFN_DMACSR_C_CTRL_ENA | HIFN_DMACSR_S_CTRL_ENA | 1311 HIFN_DMACSR_D_CTRL_ENA | HIFN_DMACSR_R_CTRL_ENA); 1312 1313 bzero(dma->command_bufs[cmdi], HIFN_MAX_COMMAND); 1314 *(hifn_base_command_t *)dma->command_bufs[cmdi] = rc; 1315 1316 dma->srcr[srci].p = htole32(sc->sc_dma_physaddr + 1317 offsetof(struct hifn_dma, test_src)); 1318 dma->test_src = 0; 1319 dma->dstr[dsti].p = htole32(sc->sc_dma_physaddr + 1320 offsetof(struct hifn_dma, test_dst)); 1321 dma->test_dst = 0; 1322 dma->cmdr[cmdi].l = htole32(8 | masks); 1323 dma->srcr[srci].l = htole32(8 | masks); 1324 dma->dstr[dsti].l = htole32(8 | masks); 1325 dma->resr[resi].l = htole32(HIFN_MAX_RESULT | masks); 1326 1327 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 1328 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1329 1330 for (r = 10000; r >= 0; r--) { 1331 DELAY(10); 1332 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 1333 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1334 if ((dma->resr[resi].l & htole32(HIFN_D_VALID)) == 0) 1335 break; 1336 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 1337 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1338 } 1339 if (r == 0) { 1340 device_printf(sc->sc_dev, "readramaddr -- " 1341 "result[%d](addr %d) still valid\n", resi, addr); 1342 r = -1; 1343 } else { 1344 r = 0; 1345 bcopy(&dma->test_dst, data, sizeof(dma->test_dst)); 1346 } 1347 1348 WRITE_REG_1(sc, HIFN_1_DMA_CSR, 1349 HIFN_DMACSR_C_CTRL_DIS | HIFN_DMACSR_S_CTRL_DIS | 1350 HIFN_DMACSR_D_CTRL_DIS | HIFN_DMACSR_R_CTRL_DIS); 1351 1352 return (r); 1353 } 1354 1355 /* 1356 * Initialize the descriptor rings. 1357 */ 1358 static void 1359 hifn_init_dma(struct hifn_softc *sc) 1360 { 1361 struct hifn_dma *dma = sc->sc_dma; 1362 int i; 1363 1364 hifn_set_retry(sc); 1365 1366 /* initialize static pointer values */ 1367 for (i = 0; i < HIFN_D_CMD_RSIZE; i++) 1368 dma->cmdr[i].p = htole32(sc->sc_dma_physaddr + 1369 offsetof(struct hifn_dma, command_bufs[i][0])); 1370 for (i = 0; i < HIFN_D_RES_RSIZE; i++) 1371 dma->resr[i].p = htole32(sc->sc_dma_physaddr + 1372 offsetof(struct hifn_dma, result_bufs[i][0])); 1373 1374 dma->cmdr[HIFN_D_CMD_RSIZE].p = 1375 htole32(sc->sc_dma_physaddr + offsetof(struct hifn_dma, cmdr[0])); 1376 dma->srcr[HIFN_D_SRC_RSIZE].p = 1377 htole32(sc->sc_dma_physaddr + offsetof(struct hifn_dma, srcr[0])); 1378 dma->dstr[HIFN_D_DST_RSIZE].p = 1379 htole32(sc->sc_dma_physaddr + offsetof(struct hifn_dma, dstr[0])); 1380 dma->resr[HIFN_D_RES_RSIZE].p = 1381 htole32(sc->sc_dma_physaddr + offsetof(struct hifn_dma, resr[0])); 1382 1383 dma->cmdu = dma->srcu = dma->dstu = dma->resu = 0; 1384 dma->cmdi = dma->srci = dma->dsti = dma->resi = 0; 1385 dma->cmdk = dma->srck = dma->dstk = dma->resk = 0; 1386 } 1387 1388 /* 1389 * Writes out the raw command buffer space. Returns the 1390 * command buffer size. 1391 */ 1392 static u_int 1393 hifn_write_command(struct hifn_command *cmd, u_int8_t *buf) 1394 { 1395 #define MIN(a,b) ((a)<(b)?(a):(b)) 1396 u_int8_t *buf_pos; 1397 hifn_base_command_t *base_cmd; 1398 hifn_mac_command_t *mac_cmd; 1399 hifn_crypt_command_t *cry_cmd; 1400 int using_mac, using_crypt, len; 1401 u_int32_t dlen, slen; 1402 1403 buf_pos = buf; 1404 using_mac = cmd->base_masks & HIFN_BASE_CMD_MAC; 1405 using_crypt = cmd->base_masks & HIFN_BASE_CMD_CRYPT; 1406 1407 base_cmd = (hifn_base_command_t *)buf_pos; 1408 base_cmd->masks = htole16(cmd->base_masks); 1409 slen = cmd->src_mapsize; 1410 if (cmd->sloplen) 1411 dlen = cmd->dst_mapsize - cmd->sloplen + sizeof(u_int32_t); 1412 else 1413 dlen = cmd->dst_mapsize; 1414 base_cmd->total_source_count = htole16(slen & HIFN_BASE_CMD_LENMASK_LO); 1415 base_cmd->total_dest_count = htole16(dlen & HIFN_BASE_CMD_LENMASK_LO); 1416 dlen >>= 16; 1417 slen >>= 16; 1418 base_cmd->session_num = htole16(cmd->session_num | 1419 ((slen << HIFN_BASE_CMD_SRCLEN_S) & HIFN_BASE_CMD_SRCLEN_M) | 1420 ((dlen << HIFN_BASE_CMD_DSTLEN_S) & HIFN_BASE_CMD_DSTLEN_M)); 1421 buf_pos += sizeof(hifn_base_command_t); 1422 1423 if (using_mac) { 1424 mac_cmd = (hifn_mac_command_t *)buf_pos; 1425 dlen = cmd->maccrd->crd_len; 1426 mac_cmd->source_count = htole16(dlen & 0xffff); 1427 dlen >>= 16; 1428 mac_cmd->masks = htole16(cmd->mac_masks | 1429 ((dlen << HIFN_MAC_CMD_SRCLEN_S) & HIFN_MAC_CMD_SRCLEN_M)); 1430 mac_cmd->header_skip = htole16(cmd->maccrd->crd_skip); 1431 mac_cmd->reserved = 0; 1432 buf_pos += sizeof(hifn_mac_command_t); 1433 } 1434 1435 if (using_crypt) { 1436 cry_cmd = (hifn_crypt_command_t *)buf_pos; 1437 dlen = cmd->enccrd->crd_len; 1438 cry_cmd->source_count = htole16(dlen & 0xffff); 1439 dlen >>= 16; 1440 cry_cmd->masks = htole16(cmd->cry_masks | 1441 ((dlen << HIFN_CRYPT_CMD_SRCLEN_S) & HIFN_CRYPT_CMD_SRCLEN_M)); 1442 cry_cmd->header_skip = htole16(cmd->enccrd->crd_skip); 1443 cry_cmd->reserved = 0; 1444 buf_pos += sizeof(hifn_crypt_command_t); 1445 } 1446 1447 if (using_mac && cmd->mac_masks & HIFN_MAC_CMD_NEW_KEY) { 1448 bcopy(cmd->mac, buf_pos, HIFN_MAC_KEY_LENGTH); 1449 buf_pos += HIFN_MAC_KEY_LENGTH; 1450 } 1451 1452 if (using_crypt && cmd->cry_masks & HIFN_CRYPT_CMD_NEW_KEY) { 1453 switch (cmd->cry_masks & HIFN_CRYPT_CMD_ALG_MASK) { 1454 case HIFN_CRYPT_CMD_ALG_3DES: 1455 bcopy(cmd->ck, buf_pos, HIFN_3DES_KEY_LENGTH); 1456 buf_pos += HIFN_3DES_KEY_LENGTH; 1457 break; 1458 case HIFN_CRYPT_CMD_ALG_DES: 1459 bcopy(cmd->ck, buf_pos, HIFN_DES_KEY_LENGTH); 1460 buf_pos += cmd->cklen; 1461 break; 1462 case HIFN_CRYPT_CMD_ALG_RC4: 1463 len = 256; 1464 do { 1465 int clen; 1466 1467 clen = MIN(cmd->cklen, len); 1468 bcopy(cmd->ck, buf_pos, clen); 1469 len -= clen; 1470 buf_pos += clen; 1471 } while (len > 0); 1472 bzero(buf_pos, 4); 1473 buf_pos += 4; 1474 break; 1475 } 1476 } 1477 1478 if (using_crypt && cmd->cry_masks & HIFN_CRYPT_CMD_NEW_IV) { 1479 bcopy(cmd->iv, buf_pos, HIFN_IV_LENGTH); 1480 buf_pos += HIFN_IV_LENGTH; 1481 } 1482 1483 if ((cmd->base_masks & (HIFN_BASE_CMD_MAC|HIFN_BASE_CMD_CRYPT)) == 0) { 1484 bzero(buf_pos, 8); 1485 buf_pos += 8; 1486 } 1487 1488 return (buf_pos - buf); 1489 #undef MIN 1490 } 1491 1492 static int 1493 hifn_dmamap_aligned(struct hifn_operand *op) 1494 { 1495 int i; 1496 1497 for (i = 0; i < op->nsegs; i++) { 1498 if (op->segs[i].ds_addr & 3) 1499 return (0); 1500 if ((i != (op->nsegs - 1)) && (op->segs[i].ds_len & 3)) 1501 return (0); 1502 } 1503 return (1); 1504 } 1505 1506 static int 1507 hifn_dmamap_load_dst(struct hifn_softc *sc, struct hifn_command *cmd) 1508 { 1509 struct hifn_dma *dma = sc->sc_dma; 1510 struct hifn_operand *dst = &cmd->dst; 1511 u_int32_t p, l; 1512 int idx, used = 0, i; 1513 1514 idx = dma->dsti; 1515 for (i = 0; i < dst->nsegs - 1; i++) { 1516 dma->dstr[idx].p = htole32(dst->segs[i].ds_addr); 1517 dma->dstr[idx].l = htole32(HIFN_D_VALID | 1518 HIFN_D_MASKDONEIRQ | dst->segs[i].ds_len); 1519 HIFN_DSTR_SYNC(sc, idx, 1520 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1521 used++; 1522 1523 if (++idx == HIFN_D_DST_RSIZE) { 1524 dma->dstr[idx].l = htole32(HIFN_D_VALID | 1525 HIFN_D_JUMP | HIFN_D_MASKDONEIRQ); 1526 HIFN_DSTR_SYNC(sc, idx, 1527 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1528 idx = 0; 1529 } 1530 } 1531 1532 if (cmd->sloplen == 0) { 1533 p = dst->segs[i].ds_addr; 1534 l = HIFN_D_VALID | HIFN_D_MASKDONEIRQ | HIFN_D_LAST | 1535 dst->segs[i].ds_len; 1536 } else { 1537 p = sc->sc_dma_physaddr + 1538 offsetof(struct hifn_dma, slop[cmd->slopidx]); 1539 l = HIFN_D_VALID | HIFN_D_MASKDONEIRQ | HIFN_D_LAST | 1540 sizeof(u_int32_t); 1541 1542 if ((dst->segs[i].ds_len - cmd->sloplen) != 0) { 1543 dma->dstr[idx].p = htole32(dst->segs[i].ds_addr); 1544 dma->dstr[idx].l = htole32(HIFN_D_VALID | 1545 HIFN_D_MASKDONEIRQ | 1546 (dst->segs[i].ds_len - cmd->sloplen)); 1547 HIFN_DSTR_SYNC(sc, idx, 1548 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1549 used++; 1550 1551 if (++idx == HIFN_D_DST_RSIZE) { 1552 dma->dstr[idx].l = htole32(HIFN_D_VALID | 1553 HIFN_D_JUMP | HIFN_D_MASKDONEIRQ); 1554 HIFN_DSTR_SYNC(sc, idx, 1555 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1556 idx = 0; 1557 } 1558 } 1559 } 1560 dma->dstr[idx].p = htole32(p); 1561 dma->dstr[idx].l = htole32(l); 1562 HIFN_DSTR_SYNC(sc, idx, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1563 used++; 1564 1565 if (++idx == HIFN_D_DST_RSIZE) { 1566 dma->dstr[idx].l = htole32(HIFN_D_VALID | HIFN_D_JUMP | 1567 HIFN_D_MASKDONEIRQ); 1568 HIFN_DSTR_SYNC(sc, idx, 1569 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1570 idx = 0; 1571 } 1572 1573 dma->dsti = idx; 1574 dma->dstu += used; 1575 return (idx); 1576 } 1577 1578 static int 1579 hifn_dmamap_load_src(struct hifn_softc *sc, struct hifn_command *cmd) 1580 { 1581 struct hifn_dma *dma = sc->sc_dma; 1582 struct hifn_operand *src = &cmd->src; 1583 int idx, i; 1584 u_int32_t last = 0; 1585 1586 idx = dma->srci; 1587 for (i = 0; i < src->nsegs; i++) { 1588 if (i == src->nsegs - 1) 1589 last = HIFN_D_LAST; 1590 1591 dma->srcr[idx].p = htole32(src->segs[i].ds_addr); 1592 dma->srcr[idx].l = htole32(src->segs[i].ds_len | 1593 HIFN_D_VALID | HIFN_D_MASKDONEIRQ | last); 1594 HIFN_SRCR_SYNC(sc, idx, 1595 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1596 1597 if (++idx == HIFN_D_SRC_RSIZE) { 1598 dma->srcr[idx].l = htole32(HIFN_D_VALID | 1599 HIFN_D_JUMP | HIFN_D_MASKDONEIRQ); 1600 HIFN_SRCR_SYNC(sc, HIFN_D_SRC_RSIZE, 1601 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1602 idx = 0; 1603 } 1604 } 1605 dma->srci = idx; 1606 dma->srcu += src->nsegs; 1607 return (idx); 1608 } 1609 1610 static void 1611 hifn_op_cb(void* arg, bus_dma_segment_t *seg, int nsegs, bus_size_t mapsize, int error) 1612 { 1613 struct hifn_operand *op = arg; 1614 1615 KASSERT(nsegs <= MAX_SCATTER, 1616 ("hifn_op_cb: too many DMA segments (%u > %u) " 1617 "returned when mapping operand", nsegs, MAX_SCATTER)); 1618 op->mapsize = mapsize; 1619 op->nsegs = nsegs; 1620 bcopy(seg, op->segs, nsegs * sizeof (seg[0])); 1621 } 1622 1623 static int 1624 hifn_crypto( 1625 struct hifn_softc *sc, 1626 struct hifn_command *cmd, 1627 struct cryptop *crp, 1628 int hint) 1629 { 1630 struct hifn_dma *dma = sc->sc_dma; 1631 u_int32_t cmdlen; 1632 int cmdi, resi, err = 0; 1633 1634 /* 1635 * need 1 cmd, and 1 res 1636 * 1637 * NB: check this first since it's easy. 1638 */ 1639 if ((dma->cmdu + 1) > HIFN_D_CMD_RSIZE || 1640 (dma->resu + 1) > HIFN_D_RES_RSIZE) { 1641 #ifdef HIFN_DEBUG 1642 if (hifn_debug) { 1643 device_printf(sc->sc_dev, 1644 "cmd/result exhaustion, cmdu %u resu %u\n", 1645 dma->cmdu, dma->resu); 1646 } 1647 #endif 1648 hifnstats.hst_nomem_cr++; 1649 return (ERESTART); 1650 } 1651 1652 if (bus_dmamap_create(sc->sc_dmat, BUS_DMA_NOWAIT, &cmd->src_map)) { 1653 hifnstats.hst_nomem_map++; 1654 return (ENOMEM); 1655 } 1656 1657 if (crp->crp_flags & CRYPTO_F_IMBUF) { 1658 if (bus_dmamap_load_mbuf(sc->sc_dmat, cmd->src_map, 1659 cmd->src_m, hifn_op_cb, &cmd->src, BUS_DMA_NOWAIT)) { 1660 hifnstats.hst_nomem_load++; 1661 err = ENOMEM; 1662 goto err_srcmap1; 1663 } 1664 } else if (crp->crp_flags & CRYPTO_F_IOV) { 1665 if (bus_dmamap_load_uio(sc->sc_dmat, cmd->src_map, 1666 cmd->src_io, hifn_op_cb, &cmd->src, BUS_DMA_NOWAIT)) { 1667 hifnstats.hst_nomem_load++; 1668 err = ENOMEM; 1669 goto err_srcmap1; 1670 } 1671 } else { 1672 err = EINVAL; 1673 goto err_srcmap1; 1674 } 1675 1676 if (hifn_dmamap_aligned(&cmd->src)) { 1677 cmd->sloplen = cmd->src_mapsize & 3; 1678 cmd->dst = cmd->src; 1679 } else { 1680 if (crp->crp_flags & CRYPTO_F_IOV) { 1681 err = EINVAL; 1682 goto err_srcmap; 1683 } else if (crp->crp_flags & CRYPTO_F_IMBUF) { 1684 int totlen, len; 1685 struct mbuf *m, *m0, *mlast; 1686 1687 KASSERT(cmd->dst_m == cmd->src_m, 1688 ("hifn_crypto: dst_m initialized improperly")); 1689 hifnstats.hst_unaligned++; 1690 /* 1691 * Source is not aligned on a longword boundary. 1692 * Copy the data to insure alignment. If we fail 1693 * to allocate mbufs or clusters while doing this 1694 * we return ERESTART so the operation is requeued 1695 * at the crypto later, but only if there are 1696 * ops already posted to the hardware; otherwise we 1697 * have no guarantee that we'll be re-entered. 1698 */ 1699 totlen = cmd->src_mapsize; 1700 if (cmd->src_m->m_flags & M_PKTHDR) { 1701 len = MHLEN; 1702 MGETHDR(m0, M_DONTWAIT, MT_DATA); 1703 if (m0 && !m_dup_pkthdr(m0, cmd->src_m, M_DONTWAIT)) { 1704 m_free(m0); 1705 m0 = NULL; 1706 } 1707 } else { 1708 len = MLEN; 1709 MGET(m0, M_DONTWAIT, MT_DATA); 1710 } 1711 if (m0 == NULL) { 1712 hifnstats.hst_nomem_mbuf++; 1713 err = dma->cmdu ? ERESTART : ENOMEM; 1714 goto err_srcmap; 1715 } 1716 if (totlen >= MINCLSIZE) { 1717 MCLGET(m0, M_DONTWAIT); 1718 if ((m0->m_flags & M_EXT) == 0) { 1719 hifnstats.hst_nomem_mcl++; 1720 err = dma->cmdu ? ERESTART : ENOMEM; 1721 m_freem(m0); 1722 goto err_srcmap; 1723 } 1724 len = MCLBYTES; 1725 } 1726 totlen -= len; 1727 m0->m_pkthdr.len = m0->m_len = len; 1728 mlast = m0; 1729 1730 while (totlen > 0) { 1731 MGET(m, M_DONTWAIT, MT_DATA); 1732 if (m == NULL) { 1733 hifnstats.hst_nomem_mbuf++; 1734 err = dma->cmdu ? ERESTART : ENOMEM; 1735 m_freem(m0); 1736 goto err_srcmap; 1737 } 1738 len = MLEN; 1739 if (totlen >= MINCLSIZE) { 1740 MCLGET(m, M_DONTWAIT); 1741 if ((m->m_flags & M_EXT) == 0) { 1742 hifnstats.hst_nomem_mcl++; 1743 err = dma->cmdu ? ERESTART : ENOMEM; 1744 mlast->m_next = m; 1745 m_freem(m0); 1746 goto err_srcmap; 1747 } 1748 len = MCLBYTES; 1749 } 1750 1751 m->m_len = len; 1752 m0->m_pkthdr.len += len; 1753 totlen -= len; 1754 1755 mlast->m_next = m; 1756 mlast = m; 1757 } 1758 cmd->dst_m = m0; 1759 } 1760 } 1761 1762 if (cmd->dst_map == NULL) { 1763 if (bus_dmamap_create(sc->sc_dmat, BUS_DMA_NOWAIT, &cmd->dst_map)) { 1764 hifnstats.hst_nomem_map++; 1765 err = ENOMEM; 1766 goto err_srcmap; 1767 } 1768 if (crp->crp_flags & CRYPTO_F_IMBUF) { 1769 if (bus_dmamap_load_mbuf(sc->sc_dmat, cmd->dst_map, 1770 cmd->dst_m, hifn_op_cb, &cmd->dst, BUS_DMA_NOWAIT)) { 1771 hifnstats.hst_nomem_map++; 1772 err = ENOMEM; 1773 goto err_dstmap1; 1774 } 1775 } else if (crp->crp_flags & CRYPTO_F_IOV) { 1776 if (bus_dmamap_load_uio(sc->sc_dmat, cmd->dst_map, 1777 cmd->dst_io, hifn_op_cb, &cmd->dst, BUS_DMA_NOWAIT)) { 1778 hifnstats.hst_nomem_load++; 1779 err = ENOMEM; 1780 goto err_dstmap1; 1781 } 1782 } 1783 } 1784 1785 #ifdef HIFN_DEBUG 1786 if (hifn_debug) { 1787 device_printf(sc->sc_dev, 1788 "Entering cmd: stat %8x ien %8x u %d/%d/%d/%d n %d/%d\n", 1789 READ_REG_1(sc, HIFN_1_DMA_CSR), 1790 READ_REG_1(sc, HIFN_1_DMA_IER), 1791 dma->cmdu, dma->srcu, dma->dstu, dma->resu, 1792 cmd->src_nsegs, cmd->dst_nsegs); 1793 } 1794 #endif 1795 1796 if (cmd->src_map == cmd->dst_map) { 1797 bus_dmamap_sync(sc->sc_dmat, cmd->src_map, 1798 BUS_DMASYNC_PREWRITE|BUS_DMASYNC_PREREAD); 1799 } else { 1800 bus_dmamap_sync(sc->sc_dmat, cmd->src_map, 1801 BUS_DMASYNC_PREWRITE); 1802 bus_dmamap_sync(sc->sc_dmat, cmd->dst_map, 1803 BUS_DMASYNC_PREREAD); 1804 } 1805 1806 /* 1807 * need N src, and N dst 1808 */ 1809 if ((dma->srcu + cmd->src_nsegs) > HIFN_D_SRC_RSIZE || 1810 (dma->dstu + cmd->dst_nsegs + 1) > HIFN_D_DST_RSIZE) { 1811 #ifdef HIFN_DEBUG 1812 if (hifn_debug) { 1813 device_printf(sc->sc_dev, 1814 "src/dst exhaustion, srcu %u+%u dstu %u+%u\n", 1815 dma->srcu, cmd->src_nsegs, 1816 dma->dstu, cmd->dst_nsegs); 1817 } 1818 #endif 1819 hifnstats.hst_nomem_sd++; 1820 err = ERESTART; 1821 goto err_dstmap; 1822 } 1823 1824 if (dma->cmdi == HIFN_D_CMD_RSIZE) { 1825 dma->cmdi = 0; 1826 dma->cmdr[HIFN_D_CMD_RSIZE].l = htole32(HIFN_D_VALID | 1827 HIFN_D_JUMP | HIFN_D_MASKDONEIRQ); 1828 HIFN_CMDR_SYNC(sc, HIFN_D_CMD_RSIZE, 1829 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1830 } 1831 cmdi = dma->cmdi++; 1832 cmdlen = hifn_write_command(cmd, dma->command_bufs[cmdi]); 1833 HIFN_CMD_SYNC(sc, cmdi, BUS_DMASYNC_PREWRITE); 1834 1835 /* .p for command/result already set */ 1836 dma->cmdr[cmdi].l = htole32(cmdlen | HIFN_D_VALID | HIFN_D_LAST | 1837 HIFN_D_MASKDONEIRQ); 1838 HIFN_CMDR_SYNC(sc, cmdi, 1839 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1840 dma->cmdu++; 1841 if (sc->sc_c_busy == 0) { 1842 WRITE_REG_1(sc, HIFN_1_DMA_CSR, HIFN_DMACSR_C_CTRL_ENA); 1843 sc->sc_c_busy = 1; 1844 } 1845 1846 /* 1847 * We don't worry about missing an interrupt (which a "command wait" 1848 * interrupt salvages us from), unless there is more than one command 1849 * in the queue. 1850 */ 1851 if (dma->cmdu > 1) { 1852 sc->sc_dmaier |= HIFN_DMAIER_C_WAIT; 1853 WRITE_REG_1(sc, HIFN_1_DMA_IER, sc->sc_dmaier); 1854 } 1855 1856 hifnstats.hst_ipackets++; 1857 hifnstats.hst_ibytes += cmd->src_mapsize; 1858 1859 hifn_dmamap_load_src(sc, cmd); 1860 if (sc->sc_s_busy == 0) { 1861 WRITE_REG_1(sc, HIFN_1_DMA_CSR, HIFN_DMACSR_S_CTRL_ENA); 1862 sc->sc_s_busy = 1; 1863 } 1864 1865 /* 1866 * Unlike other descriptors, we don't mask done interrupt from 1867 * result descriptor. 1868 */ 1869 #ifdef HIFN_DEBUG 1870 if (hifn_debug) 1871 printf("load res\n"); 1872 #endif 1873 if (dma->resi == HIFN_D_RES_RSIZE) { 1874 dma->resi = 0; 1875 dma->resr[HIFN_D_RES_RSIZE].l = htole32(HIFN_D_VALID | 1876 HIFN_D_JUMP | HIFN_D_MASKDONEIRQ); 1877 HIFN_RESR_SYNC(sc, HIFN_D_RES_RSIZE, 1878 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1879 } 1880 resi = dma->resi++; 1881 KASSERT(dma->hifn_commands[resi] == NULL, 1882 ("hifn_crypto: command slot %u busy", resi)); 1883 dma->hifn_commands[resi] = cmd; 1884 HIFN_RES_SYNC(sc, resi, BUS_DMASYNC_PREREAD); 1885 if ((hint & CRYPTO_HINT_MORE) && sc->sc_curbatch < hifn_maxbatch) { 1886 dma->resr[resi].l = htole32(HIFN_MAX_RESULT | 1887 HIFN_D_VALID | HIFN_D_LAST | HIFN_D_MASKDONEIRQ); 1888 sc->sc_curbatch++; 1889 if (sc->sc_curbatch > hifnstats.hst_maxbatch) 1890 hifnstats.hst_maxbatch = sc->sc_curbatch; 1891 hifnstats.hst_totbatch++; 1892 } else { 1893 dma->resr[resi].l = htole32(HIFN_MAX_RESULT | 1894 HIFN_D_VALID | HIFN_D_LAST); 1895 sc->sc_curbatch = 0; 1896 } 1897 HIFN_RESR_SYNC(sc, resi, 1898 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1899 dma->resu++; 1900 if (sc->sc_r_busy == 0) { 1901 WRITE_REG_1(sc, HIFN_1_DMA_CSR, HIFN_DMACSR_R_CTRL_ENA); 1902 sc->sc_r_busy = 1; 1903 } 1904 1905 if (cmd->sloplen) 1906 cmd->slopidx = resi; 1907 1908 hifn_dmamap_load_dst(sc, cmd); 1909 1910 if (sc->sc_d_busy == 0) { 1911 WRITE_REG_1(sc, HIFN_1_DMA_CSR, HIFN_DMACSR_D_CTRL_ENA); 1912 sc->sc_d_busy = 1; 1913 } 1914 1915 #ifdef HIFN_DEBUG 1916 if (hifn_debug) { 1917 device_printf(sc->sc_dev, "command: stat %8x ier %8x\n", 1918 READ_REG_1(sc, HIFN_1_DMA_CSR), 1919 READ_REG_1(sc, HIFN_1_DMA_IER)); 1920 } 1921 #endif 1922 1923 sc->sc_active = 5; 1924 KASSERT(err == 0, ("hifn_crypto: success with error %u", err)); 1925 return (err); /* success */ 1926 1927 err_dstmap: 1928 if (cmd->src_map != cmd->dst_map) 1929 bus_dmamap_unload(sc->sc_dmat, cmd->dst_map); 1930 err_dstmap1: 1931 if (cmd->src_map != cmd->dst_map) 1932 bus_dmamap_destroy(sc->sc_dmat, cmd->dst_map); 1933 err_srcmap: 1934 if (crp->crp_flags & CRYPTO_F_IMBUF) { 1935 if (cmd->src_m != cmd->dst_m) 1936 m_freem(cmd->dst_m); 1937 } 1938 bus_dmamap_unload(sc->sc_dmat, cmd->src_map); 1939 err_srcmap1: 1940 bus_dmamap_destroy(sc->sc_dmat, cmd->src_map); 1941 return (err); 1942 } 1943 1944 static void 1945 hifn_tick(void* vsc) 1946 { 1947 struct hifn_softc *sc = vsc; 1948 int s; 1949 1950 s = splimp(); 1951 if (sc->sc_active == 0) { 1952 struct hifn_dma *dma = sc->sc_dma; 1953 u_int32_t r = 0; 1954 1955 if (dma->cmdu == 0 && sc->sc_c_busy) { 1956 sc->sc_c_busy = 0; 1957 r |= HIFN_DMACSR_C_CTRL_DIS; 1958 } 1959 if (dma->srcu == 0 && sc->sc_s_busy) { 1960 sc->sc_s_busy = 0; 1961 r |= HIFN_DMACSR_S_CTRL_DIS; 1962 } 1963 if (dma->dstu == 0 && sc->sc_d_busy) { 1964 sc->sc_d_busy = 0; 1965 r |= HIFN_DMACSR_D_CTRL_DIS; 1966 } 1967 if (dma->resu == 0 && sc->sc_r_busy) { 1968 sc->sc_r_busy = 0; 1969 r |= HIFN_DMACSR_R_CTRL_DIS; 1970 } 1971 if (r) 1972 WRITE_REG_1(sc, HIFN_1_DMA_CSR, r); 1973 } else 1974 sc->sc_active--; 1975 splx(s); 1976 callout_reset(&sc->sc_tickto, hz, hifn_tick, sc); 1977 } 1978 1979 static void 1980 hifn_intr(void *arg) 1981 { 1982 struct hifn_softc *sc = arg; 1983 struct hifn_dma *dma; 1984 u_int32_t dmacsr, restart; 1985 int i, u; 1986 1987 dma = sc->sc_dma; 1988 1989 dmacsr = READ_REG_1(sc, HIFN_1_DMA_CSR); 1990 1991 #ifdef HIFN_DEBUG 1992 if (hifn_debug) { 1993 device_printf(sc->sc_dev, 1994 "irq: stat %08x ien %08x damier %08x i %d/%d/%d/%d k %d/%d/%d/%d u %d/%d/%d/%d\n", 1995 dmacsr, READ_REG_1(sc, HIFN_1_DMA_IER), sc->sc_dmaier, 1996 dma->cmdi, dma->srci, dma->dsti, dma->resi, 1997 dma->cmdk, dma->srck, dma->dstk, dma->resk, 1998 dma->cmdu, dma->srcu, dma->dstu, dma->resu); 1999 } 2000 #endif 2001 2002 /* Nothing in the DMA unit interrupted */ 2003 if ((dmacsr & sc->sc_dmaier) == 0) { 2004 hifnstats.hst_noirq++; 2005 return; 2006 } 2007 2008 WRITE_REG_1(sc, HIFN_1_DMA_CSR, dmacsr & sc->sc_dmaier); 2009 2010 if ((sc->sc_flags & HIFN_HAS_PUBLIC) && 2011 (dmacsr & HIFN_DMACSR_PUBDONE)) 2012 WRITE_REG_1(sc, HIFN_1_PUB_STATUS, 2013 READ_REG_1(sc, HIFN_1_PUB_STATUS) | HIFN_PUBSTS_DONE); 2014 2015 restart = dmacsr & (HIFN_DMACSR_D_OVER | HIFN_DMACSR_R_OVER); 2016 if (restart) 2017 device_printf(sc->sc_dev, "overrun %x\n", dmacsr); 2018 2019 if (sc->sc_flags & HIFN_IS_7811) { 2020 if (dmacsr & HIFN_DMACSR_ILLR) 2021 device_printf(sc->sc_dev, "illegal read\n"); 2022 if (dmacsr & HIFN_DMACSR_ILLW) 2023 device_printf(sc->sc_dev, "illegal write\n"); 2024 } 2025 2026 restart = dmacsr & (HIFN_DMACSR_C_ABORT | HIFN_DMACSR_S_ABORT | 2027 HIFN_DMACSR_D_ABORT | HIFN_DMACSR_R_ABORT); 2028 if (restart) { 2029 device_printf(sc->sc_dev, "abort, resetting.\n"); 2030 hifnstats.hst_abort++; 2031 hifn_abort(sc); 2032 return; 2033 } 2034 2035 if ((dmacsr & HIFN_DMACSR_C_WAIT) && (dma->cmdu == 0)) { 2036 /* 2037 * If no slots to process and we receive a "waiting on 2038 * command" interrupt, we disable the "waiting on command" 2039 * (by clearing it). 2040 */ 2041 sc->sc_dmaier &= ~HIFN_DMAIER_C_WAIT; 2042 WRITE_REG_1(sc, HIFN_1_DMA_IER, sc->sc_dmaier); 2043 } 2044 2045 /* clear the rings */ 2046 i = dma->resk; u = dma->resu; 2047 while (u != 0) { 2048 HIFN_RESR_SYNC(sc, i, 2049 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 2050 if (dma->resr[i].l & htole32(HIFN_D_VALID)) { 2051 HIFN_RESR_SYNC(sc, i, 2052 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2053 break; 2054 } 2055 2056 if (i != HIFN_D_RES_RSIZE) { 2057 struct hifn_command *cmd; 2058 u_int8_t *macbuf = NULL; 2059 2060 HIFN_RES_SYNC(sc, i, BUS_DMASYNC_POSTREAD); 2061 cmd = dma->hifn_commands[i]; 2062 KASSERT(cmd != NULL, 2063 ("hifn_intr: null command slot %u", i)); 2064 dma->hifn_commands[i] = NULL; 2065 2066 if (cmd->base_masks & HIFN_BASE_CMD_MAC) { 2067 macbuf = dma->result_bufs[i]; 2068 macbuf += 12; 2069 } 2070 2071 hifn_callback(sc, cmd, macbuf); 2072 hifnstats.hst_opackets++; 2073 u--; 2074 } 2075 2076 if (++i == (HIFN_D_RES_RSIZE + 1)) 2077 i = 0; 2078 } 2079 dma->resk = i; dma->resu = u; 2080 2081 i = dma->srck; u = dma->srcu; 2082 while (u != 0) { 2083 if (i == HIFN_D_SRC_RSIZE) 2084 i = 0; 2085 HIFN_SRCR_SYNC(sc, i, 2086 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 2087 if (dma->srcr[i].l & htole32(HIFN_D_VALID)) { 2088 HIFN_SRCR_SYNC(sc, i, 2089 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2090 break; 2091 } 2092 i++, u--; 2093 } 2094 dma->srck = i; dma->srcu = u; 2095 2096 i = dma->cmdk; u = dma->cmdu; 2097 while (u != 0) { 2098 HIFN_CMDR_SYNC(sc, i, 2099 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 2100 if (dma->cmdr[i].l & htole32(HIFN_D_VALID)) { 2101 HIFN_CMDR_SYNC(sc, i, 2102 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2103 break; 2104 } 2105 if (i != HIFN_D_CMD_RSIZE) { 2106 u--; 2107 HIFN_CMD_SYNC(sc, i, BUS_DMASYNC_POSTWRITE); 2108 } 2109 if (++i == (HIFN_D_CMD_RSIZE + 1)) 2110 i = 0; 2111 } 2112 dma->cmdk = i; dma->cmdu = u; 2113 2114 if (sc->sc_needwakeup) { /* XXX check high watermark */ 2115 int wakeup = sc->sc_needwakeup & (CRYPTO_SYMQ|CRYPTO_ASYMQ); 2116 #ifdef HIFN_DEBUG 2117 if (hifn_debug) 2118 device_printf(sc->sc_dev, 2119 "wakeup crypto (%x) u %d/%d/%d/%d\n", 2120 sc->sc_needwakeup, 2121 dma->cmdu, dma->srcu, dma->dstu, dma->resu); 2122 #endif 2123 sc->sc_needwakeup &= ~wakeup; 2124 crypto_unblock(sc->sc_cid, wakeup); 2125 } 2126 } 2127 2128 /* 2129 * Allocate a new 'session' and return an encoded session id. 'sidp' 2130 * contains our registration id, and should contain an encoded session 2131 * id on successful allocation. 2132 */ 2133 static int 2134 hifn_newsession(void *arg, u_int32_t *sidp, struct cryptoini *cri) 2135 { 2136 struct cryptoini *c; 2137 struct hifn_softc *sc = arg; 2138 int i, mac = 0, cry = 0; 2139 2140 KASSERT(sc != NULL, ("hifn_newsession: null softc")); 2141 if (sidp == NULL || cri == NULL || sc == NULL) 2142 return (EINVAL); 2143 2144 for (i = 0; i < sc->sc_maxses; i++) 2145 if (sc->sc_sessions[i].hs_state == HS_STATE_FREE) 2146 break; 2147 if (i == sc->sc_maxses) 2148 return (ENOMEM); 2149 2150 for (c = cri; c != NULL; c = c->cri_next) { 2151 switch (c->cri_alg) { 2152 case CRYPTO_MD5: 2153 case CRYPTO_SHA1: 2154 case CRYPTO_MD5_HMAC: 2155 case CRYPTO_SHA1_HMAC: 2156 if (mac) 2157 return (EINVAL); 2158 mac = 1; 2159 break; 2160 case CRYPTO_DES_CBC: 2161 case CRYPTO_3DES_CBC: 2162 /* XXX this may read fewer, does it matter? */ 2163 read_random(sc->sc_sessions[i].hs_iv, HIFN_IV_LENGTH); 2164 /*FALLTHROUGH*/ 2165 case CRYPTO_ARC4: 2166 if (cry) 2167 return (EINVAL); 2168 cry = 1; 2169 break; 2170 default: 2171 return (EINVAL); 2172 } 2173 } 2174 if (mac == 0 && cry == 0) 2175 return (EINVAL); 2176 2177 *sidp = HIFN_SID(device_get_unit(sc->sc_dev), i); 2178 sc->sc_sessions[i].hs_state = HS_STATE_USED; 2179 2180 return (0); 2181 } 2182 2183 /* 2184 * Deallocate a session. 2185 * XXX this routine should run a zero'd mac/encrypt key into context ram. 2186 * XXX to blow away any keys already stored there. 2187 */ 2188 static int 2189 hifn_freesession(void *arg, u_int64_t tid) 2190 { 2191 struct hifn_softc *sc = arg; 2192 int session; 2193 u_int32_t sid = ((u_int32_t) tid) & 0xffffffff; 2194 2195 KASSERT(sc != NULL, ("hifn_freesession: null softc")); 2196 if (sc == NULL) 2197 return (EINVAL); 2198 2199 session = HIFN_SESSION(sid); 2200 if (session >= sc->sc_maxses) 2201 return (EINVAL); 2202 2203 bzero(&sc->sc_sessions[session], sizeof(sc->sc_sessions[session])); 2204 return (0); 2205 } 2206 2207 static int 2208 hifn_process(void *arg, struct cryptop *crp, int hint) 2209 { 2210 struct hifn_softc *sc = arg; 2211 struct hifn_command *cmd = NULL; 2212 int session, err; 2213 struct cryptodesc *crd1, *crd2, *maccrd, *enccrd; 2214 2215 if (crp == NULL || crp->crp_callback == NULL) { 2216 hifnstats.hst_invalid++; 2217 return (EINVAL); 2218 } 2219 session = HIFN_SESSION(crp->crp_sid); 2220 2221 if (sc == NULL || session >= sc->sc_maxses) { 2222 err = EINVAL; 2223 goto errout; 2224 } 2225 2226 cmd = malloc(sizeof(struct hifn_command), M_DEVBUF, M_NOWAIT | M_ZERO); 2227 if (cmd == NULL) { 2228 hifnstats.hst_nomem++; 2229 err = ENOMEM; 2230 goto errout; 2231 } 2232 2233 if (crp->crp_flags & CRYPTO_F_IMBUF) { 2234 cmd->src_m = (struct mbuf *)crp->crp_buf; 2235 cmd->dst_m = (struct mbuf *)crp->crp_buf; 2236 } else if (crp->crp_flags & CRYPTO_F_IOV) { 2237 cmd->src_io = (struct uio *)crp->crp_buf; 2238 cmd->dst_io = (struct uio *)crp->crp_buf; 2239 } else { 2240 err = EINVAL; 2241 goto errout; /* XXX we don't handle contiguous buffers! */ 2242 } 2243 2244 crd1 = crp->crp_desc; 2245 if (crd1 == NULL) { 2246 err = EINVAL; 2247 goto errout; 2248 } 2249 crd2 = crd1->crd_next; 2250 2251 if (crd2 == NULL) { 2252 if (crd1->crd_alg == CRYPTO_MD5_HMAC || 2253 crd1->crd_alg == CRYPTO_SHA1_HMAC || 2254 crd1->crd_alg == CRYPTO_SHA1 || 2255 crd1->crd_alg == CRYPTO_MD5) { 2256 maccrd = crd1; 2257 enccrd = NULL; 2258 } else if (crd1->crd_alg == CRYPTO_DES_CBC || 2259 crd1->crd_alg == CRYPTO_3DES_CBC || 2260 crd1->crd_alg == CRYPTO_ARC4) { 2261 if ((crd1->crd_flags & CRD_F_ENCRYPT) == 0) 2262 cmd->base_masks |= HIFN_BASE_CMD_DECODE; 2263 maccrd = NULL; 2264 enccrd = crd1; 2265 } else { 2266 err = EINVAL; 2267 goto errout; 2268 } 2269 } else { 2270 if ((crd1->crd_alg == CRYPTO_MD5_HMAC || 2271 crd1->crd_alg == CRYPTO_SHA1_HMAC || 2272 crd1->crd_alg == CRYPTO_MD5 || 2273 crd1->crd_alg == CRYPTO_SHA1) && 2274 (crd2->crd_alg == CRYPTO_DES_CBC || 2275 crd2->crd_alg == CRYPTO_3DES_CBC || 2276 crd2->crd_alg == CRYPTO_ARC4) && 2277 ((crd2->crd_flags & CRD_F_ENCRYPT) == 0)) { 2278 cmd->base_masks = HIFN_BASE_CMD_DECODE; 2279 maccrd = crd1; 2280 enccrd = crd2; 2281 } else if ((crd1->crd_alg == CRYPTO_DES_CBC || 2282 crd1->crd_alg == CRYPTO_ARC4 || 2283 crd1->crd_alg == CRYPTO_3DES_CBC) && 2284 (crd2->crd_alg == CRYPTO_MD5_HMAC || 2285 crd2->crd_alg == CRYPTO_SHA1_HMAC || 2286 crd2->crd_alg == CRYPTO_MD5 || 2287 crd2->crd_alg == CRYPTO_SHA1) && 2288 (crd1->crd_flags & CRD_F_ENCRYPT)) { 2289 enccrd = crd1; 2290 maccrd = crd2; 2291 } else { 2292 /* 2293 * We cannot order the 7751 as requested 2294 */ 2295 err = EINVAL; 2296 goto errout; 2297 } 2298 } 2299 2300 if (enccrd) { 2301 cmd->enccrd = enccrd; 2302 cmd->base_masks |= HIFN_BASE_CMD_CRYPT; 2303 switch (enccrd->crd_alg) { 2304 case CRYPTO_ARC4: 2305 cmd->cry_masks |= HIFN_CRYPT_CMD_ALG_RC4; 2306 if ((enccrd->crd_flags & CRD_F_ENCRYPT) 2307 != sc->sc_sessions[session].hs_prev_op) 2308 sc->sc_sessions[session].hs_state = 2309 HS_STATE_USED; 2310 break; 2311 case CRYPTO_DES_CBC: 2312 cmd->cry_masks |= HIFN_CRYPT_CMD_ALG_DES | 2313 HIFN_CRYPT_CMD_MODE_CBC | 2314 HIFN_CRYPT_CMD_NEW_IV; 2315 break; 2316 case CRYPTO_3DES_CBC: 2317 cmd->cry_masks |= HIFN_CRYPT_CMD_ALG_3DES | 2318 HIFN_CRYPT_CMD_MODE_CBC | 2319 HIFN_CRYPT_CMD_NEW_IV; 2320 break; 2321 default: 2322 err = EINVAL; 2323 goto errout; 2324 } 2325 if (enccrd->crd_alg != CRYPTO_ARC4) { 2326 if (enccrd->crd_flags & CRD_F_ENCRYPT) { 2327 if (enccrd->crd_flags & CRD_F_IV_EXPLICIT) 2328 bcopy(enccrd->crd_iv, cmd->iv, 2329 HIFN_IV_LENGTH); 2330 else 2331 bcopy(sc->sc_sessions[session].hs_iv, 2332 cmd->iv, HIFN_IV_LENGTH); 2333 2334 if ((enccrd->crd_flags & CRD_F_IV_PRESENT) 2335 == 0) { 2336 if (crp->crp_flags & CRYPTO_F_IMBUF) 2337 m_copyback(cmd->src_m, 2338 enccrd->crd_inject, 2339 HIFN_IV_LENGTH, cmd->iv); 2340 else if (crp->crp_flags & CRYPTO_F_IOV) 2341 cuio_copyback(cmd->src_io, 2342 enccrd->crd_inject, 2343 HIFN_IV_LENGTH, cmd->iv); 2344 } 2345 } else { 2346 if (enccrd->crd_flags & CRD_F_IV_EXPLICIT) 2347 bcopy(enccrd->crd_iv, cmd->iv, 2348 HIFN_IV_LENGTH); 2349 else if (crp->crp_flags & CRYPTO_F_IMBUF) 2350 m_copydata(cmd->src_m, 2351 enccrd->crd_inject, 2352 HIFN_IV_LENGTH, cmd->iv); 2353 else if (crp->crp_flags & CRYPTO_F_IOV) 2354 cuio_copydata(cmd->src_io, 2355 enccrd->crd_inject, 2356 HIFN_IV_LENGTH, cmd->iv); 2357 } 2358 } 2359 2360 cmd->ck = enccrd->crd_key; 2361 cmd->cklen = enccrd->crd_klen >> 3; 2362 2363 if (sc->sc_sessions[session].hs_state == HS_STATE_USED) 2364 cmd->cry_masks |= HIFN_CRYPT_CMD_NEW_KEY; 2365 } 2366 2367 if (maccrd) { 2368 cmd->maccrd = maccrd; 2369 cmd->base_masks |= HIFN_BASE_CMD_MAC; 2370 2371 switch (maccrd->crd_alg) { 2372 case CRYPTO_MD5: 2373 cmd->mac_masks |= HIFN_MAC_CMD_ALG_MD5 | 2374 HIFN_MAC_CMD_RESULT | HIFN_MAC_CMD_MODE_HASH | 2375 HIFN_MAC_CMD_POS_IPSEC; 2376 break; 2377 case CRYPTO_MD5_HMAC: 2378 cmd->mac_masks |= HIFN_MAC_CMD_ALG_MD5 | 2379 HIFN_MAC_CMD_RESULT | HIFN_MAC_CMD_MODE_HMAC | 2380 HIFN_MAC_CMD_POS_IPSEC | HIFN_MAC_CMD_TRUNC; 2381 break; 2382 case CRYPTO_SHA1: 2383 cmd->mac_masks |= HIFN_MAC_CMD_ALG_SHA1 | 2384 HIFN_MAC_CMD_RESULT | HIFN_MAC_CMD_MODE_HASH | 2385 HIFN_MAC_CMD_POS_IPSEC; 2386 break; 2387 case CRYPTO_SHA1_HMAC: 2388 cmd->mac_masks |= HIFN_MAC_CMD_ALG_SHA1 | 2389 HIFN_MAC_CMD_RESULT | HIFN_MAC_CMD_MODE_HMAC | 2390 HIFN_MAC_CMD_POS_IPSEC | HIFN_MAC_CMD_TRUNC; 2391 break; 2392 } 2393 2394 if ((maccrd->crd_alg == CRYPTO_SHA1_HMAC || 2395 maccrd->crd_alg == CRYPTO_MD5_HMAC) && 2396 sc->sc_sessions[session].hs_state == HS_STATE_USED) { 2397 cmd->mac_masks |= HIFN_MAC_CMD_NEW_KEY; 2398 bcopy(maccrd->crd_key, cmd->mac, maccrd->crd_klen >> 3); 2399 bzero(cmd->mac + (maccrd->crd_klen >> 3), 2400 HIFN_MAC_KEY_LENGTH - (maccrd->crd_klen >> 3)); 2401 } 2402 } 2403 2404 cmd->crp = crp; 2405 cmd->session_num = session; 2406 cmd->softc = sc; 2407 2408 err = hifn_crypto(sc, cmd, crp, hint); 2409 if (!err) { 2410 if (enccrd) 2411 sc->sc_sessions[session].hs_prev_op = 2412 enccrd->crd_flags & CRD_F_ENCRYPT; 2413 if (sc->sc_sessions[session].hs_state == HS_STATE_USED) 2414 sc->sc_sessions[session].hs_state = HS_STATE_KEY; 2415 return 0; 2416 } else if (err == ERESTART) { 2417 /* 2418 * There weren't enough resources to dispatch the request 2419 * to the part. Notify the caller so they'll requeue this 2420 * request and resubmit it again soon. 2421 */ 2422 #ifdef HIFN_DEBUG 2423 if (hifn_debug) 2424 device_printf(sc->sc_dev, "requeue request\n"); 2425 #endif 2426 free(cmd, M_DEVBUF); 2427 sc->sc_needwakeup |= CRYPTO_SYMQ; 2428 return (err); 2429 } 2430 2431 errout: 2432 if (cmd != NULL) 2433 free(cmd, M_DEVBUF); 2434 if (err == EINVAL) 2435 hifnstats.hst_invalid++; 2436 else 2437 hifnstats.hst_nomem++; 2438 crp->crp_etype = err; 2439 crypto_done(crp); 2440 return (err); 2441 } 2442 2443 static void 2444 hifn_abort(struct hifn_softc *sc) 2445 { 2446 struct hifn_dma *dma = sc->sc_dma; 2447 struct hifn_command *cmd; 2448 struct cryptop *crp; 2449 int i, u; 2450 2451 i = dma->resk; u = dma->resu; 2452 while (u != 0) { 2453 cmd = dma->hifn_commands[i]; 2454 KASSERT(cmd != NULL, ("hifn_abort: null command slot %u", i)); 2455 dma->hifn_commands[i] = NULL; 2456 crp = cmd->crp; 2457 2458 if ((dma->resr[i].l & htole32(HIFN_D_VALID)) == 0) { 2459 /* Salvage what we can. */ 2460 u_int8_t *macbuf; 2461 2462 if (cmd->base_masks & HIFN_BASE_CMD_MAC) { 2463 macbuf = dma->result_bufs[i]; 2464 macbuf += 12; 2465 } else 2466 macbuf = NULL; 2467 hifnstats.hst_opackets++; 2468 hifn_callback(sc, cmd, macbuf); 2469 } else { 2470 if (cmd->src_map == cmd->dst_map) { 2471 bus_dmamap_sync(sc->sc_dmat, cmd->src_map, 2472 BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE); 2473 } else { 2474 bus_dmamap_sync(sc->sc_dmat, cmd->src_map, 2475 BUS_DMASYNC_POSTWRITE); 2476 bus_dmamap_sync(sc->sc_dmat, cmd->dst_map, 2477 BUS_DMASYNC_POSTREAD); 2478 } 2479 2480 if (cmd->src_m != cmd->dst_m) { 2481 m_freem(cmd->src_m); 2482 crp->crp_buf = (caddr_t)cmd->dst_m; 2483 } 2484 2485 /* non-shared buffers cannot be restarted */ 2486 if (cmd->src_map != cmd->dst_map) { 2487 /* 2488 * XXX should be EAGAIN, delayed until 2489 * after the reset. 2490 */ 2491 crp->crp_etype = ENOMEM; 2492 bus_dmamap_unload(sc->sc_dmat, cmd->dst_map); 2493 bus_dmamap_destroy(sc->sc_dmat, cmd->dst_map); 2494 } else 2495 crp->crp_etype = ENOMEM; 2496 2497 bus_dmamap_unload(sc->sc_dmat, cmd->src_map); 2498 bus_dmamap_destroy(sc->sc_dmat, cmd->src_map); 2499 2500 free(cmd, M_DEVBUF); 2501 if (crp->crp_etype != EAGAIN) 2502 crypto_done(crp); 2503 } 2504 2505 if (++i == HIFN_D_RES_RSIZE) 2506 i = 0; 2507 u--; 2508 } 2509 dma->resk = i; dma->resu = u; 2510 2511 /* Force upload of key next time */ 2512 for (i = 0; i < sc->sc_maxses; i++) 2513 if (sc->sc_sessions[i].hs_state == HS_STATE_KEY) 2514 sc->sc_sessions[i].hs_state = HS_STATE_USED; 2515 2516 hifn_reset_board(sc, 1); 2517 hifn_init_dma(sc); 2518 hifn_init_pci_registers(sc); 2519 } 2520 2521 static void 2522 hifn_callback(struct hifn_softc *sc, struct hifn_command *cmd, u_int8_t *macbuf) 2523 { 2524 struct hifn_dma *dma = sc->sc_dma; 2525 struct cryptop *crp = cmd->crp; 2526 struct cryptodesc *crd; 2527 struct mbuf *m; 2528 int totlen, i, u; 2529 2530 if (cmd->src_map == cmd->dst_map) { 2531 bus_dmamap_sync(sc->sc_dmat, cmd->src_map, 2532 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 2533 } else { 2534 bus_dmamap_sync(sc->sc_dmat, cmd->src_map, 2535 BUS_DMASYNC_POSTWRITE); 2536 bus_dmamap_sync(sc->sc_dmat, cmd->dst_map, 2537 BUS_DMASYNC_POSTREAD); 2538 } 2539 2540 if (crp->crp_flags & CRYPTO_F_IMBUF) { 2541 if (cmd->src_m != cmd->dst_m) { 2542 crp->crp_buf = (caddr_t)cmd->dst_m; 2543 totlen = cmd->src_mapsize; 2544 for (m = cmd->dst_m; m != NULL; m = m->m_next) { 2545 if (totlen < m->m_len) { 2546 m->m_len = totlen; 2547 totlen = 0; 2548 } else 2549 totlen -= m->m_len; 2550 } 2551 cmd->dst_m->m_pkthdr.len = cmd->src_m->m_pkthdr.len; 2552 m_freem(cmd->src_m); 2553 } 2554 } 2555 2556 if (cmd->sloplen != 0) { 2557 if (crp->crp_flags & CRYPTO_F_IMBUF) 2558 m_copyback((struct mbuf *)crp->crp_buf, 2559 cmd->src_mapsize - cmd->sloplen, 2560 cmd->sloplen, (caddr_t)&dma->slop[cmd->slopidx]); 2561 else if (crp->crp_flags & CRYPTO_F_IOV) 2562 cuio_copyback((struct uio *)crp->crp_buf, 2563 cmd->src_mapsize - cmd->sloplen, 2564 cmd->sloplen, (caddr_t)&dma->slop[cmd->slopidx]); 2565 } 2566 2567 i = dma->dstk; u = dma->dstu; 2568 while (u != 0) { 2569 if (i == HIFN_D_DST_RSIZE) 2570 i = 0; 2571 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 2572 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 2573 if (dma->dstr[i].l & htole32(HIFN_D_VALID)) { 2574 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 2575 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2576 break; 2577 } 2578 i++, u--; 2579 } 2580 dma->dstk = i; dma->dstu = u; 2581 2582 hifnstats.hst_obytes += cmd->dst_mapsize; 2583 2584 if ((cmd->base_masks & (HIFN_BASE_CMD_CRYPT | HIFN_BASE_CMD_DECODE)) == 2585 HIFN_BASE_CMD_CRYPT) { 2586 for (crd = crp->crp_desc; crd; crd = crd->crd_next) { 2587 if (crd->crd_alg != CRYPTO_DES_CBC && 2588 crd->crd_alg != CRYPTO_3DES_CBC) 2589 continue; 2590 if (crp->crp_flags & CRYPTO_F_IMBUF) 2591 m_copydata((struct mbuf *)crp->crp_buf, 2592 crd->crd_skip + crd->crd_len - HIFN_IV_LENGTH, 2593 HIFN_IV_LENGTH, 2594 cmd->softc->sc_sessions[cmd->session_num].hs_iv); 2595 else if (crp->crp_flags & CRYPTO_F_IOV) { 2596 cuio_copydata((struct uio *)crp->crp_buf, 2597 crd->crd_skip + crd->crd_len - HIFN_IV_LENGTH, 2598 HIFN_IV_LENGTH, 2599 cmd->softc->sc_sessions[cmd->session_num].hs_iv); 2600 } 2601 break; 2602 } 2603 } 2604 2605 if (macbuf != NULL) { 2606 for (crd = crp->crp_desc; crd; crd = crd->crd_next) { 2607 int len; 2608 2609 if (crd->crd_alg == CRYPTO_MD5) 2610 len = 16; 2611 else if (crd->crd_alg == CRYPTO_SHA1) 2612 len = 20; 2613 else if (crd->crd_alg == CRYPTO_MD5_HMAC || 2614 crd->crd_alg == CRYPTO_SHA1_HMAC) 2615 len = 12; 2616 else 2617 continue; 2618 2619 if (crp->crp_flags & CRYPTO_F_IMBUF) 2620 m_copyback((struct mbuf *)crp->crp_buf, 2621 crd->crd_inject, len, macbuf); 2622 else if ((crp->crp_flags & CRYPTO_F_IOV) && crp->crp_mac) 2623 bcopy((caddr_t)macbuf, crp->crp_mac, len); 2624 break; 2625 } 2626 } 2627 2628 if (cmd->src_map != cmd->dst_map) { 2629 bus_dmamap_unload(sc->sc_dmat, cmd->dst_map); 2630 bus_dmamap_destroy(sc->sc_dmat, cmd->dst_map); 2631 } 2632 bus_dmamap_unload(sc->sc_dmat, cmd->src_map); 2633 bus_dmamap_destroy(sc->sc_dmat, cmd->src_map); 2634 free(cmd, M_DEVBUF); 2635 crypto_done(crp); 2636 } 2637 2638 /* 2639 * 7811 PB3 rev/2 parts lock-up on burst writes to Group 0 2640 * and Group 1 registers; avoid conditions that could create 2641 * burst writes by doing a read in between the writes. 2642 * 2643 * NB: The read we interpose is always to the same register; 2644 * we do this because reading from an arbitrary (e.g. last) 2645 * register may not always work. 2646 */ 2647 static void 2648 hifn_write_reg_0(struct hifn_softc *sc, bus_size_t reg, u_int32_t val) 2649 { 2650 if (sc->sc_flags & HIFN_IS_7811) { 2651 if (sc->sc_bar0_lastreg == reg - 4) 2652 bus_space_read_4(sc->sc_st0, sc->sc_sh0, HIFN_0_PUCNFG); 2653 sc->sc_bar0_lastreg = reg; 2654 } 2655 bus_space_write_4(sc->sc_st0, sc->sc_sh0, reg, val); 2656 } 2657 2658 static void 2659 hifn_write_reg_1(struct hifn_softc *sc, bus_size_t reg, u_int32_t val) 2660 { 2661 if (sc->sc_flags & HIFN_IS_7811) { 2662 if (sc->sc_bar1_lastreg == reg - 4) 2663 bus_space_read_4(sc->sc_st1, sc->sc_sh1, HIFN_1_REVID); 2664 sc->sc_bar1_lastreg = reg; 2665 } 2666 bus_space_write_4(sc->sc_st1, sc->sc_sh1, reg, val); 2667 } 2668