hifn7751.c revision 166901
1/* $OpenBSD: hifn7751.c,v 1.120 2002/05/17 00:33:34 deraadt Exp $ */ 2 3/*- 4 * Invertex AEON / Hifn 7751 driver 5 * Copyright (c) 1999 Invertex Inc. All rights reserved. 6 * Copyright (c) 1999 Theo de Raadt 7 * Copyright (c) 2000-2001 Network Security Technologies, Inc. 8 * http://www.netsec.net 9 * Copyright (c) 2003 Hifn Inc. 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#include <sys/cdefs.h> 44__FBSDID("$FreeBSD: head/sys/dev/hifn/hifn7751.c 166901 2007-02-23 12:19:07Z piso $"); 45 46/* 47 * Driver for various Hifn encryption processors. 48 */ 49#include "opt_hifn.h" 50 51#include <sys/param.h> 52#include <sys/systm.h> 53#include <sys/proc.h> 54#include <sys/errno.h> 55#include <sys/malloc.h> 56#include <sys/kernel.h> 57#include <sys/module.h> 58#include <sys/mbuf.h> 59#include <sys/lock.h> 60#include <sys/mutex.h> 61#include <sys/sysctl.h> 62 63#include <vm/vm.h> 64#include <vm/pmap.h> 65 66#include <machine/bus.h> 67#include <machine/resource.h> 68#include <sys/bus.h> 69#include <sys/rman.h> 70 71#include <opencrypto/cryptodev.h> 72#include <sys/random.h> 73 74#include <dev/pci/pcivar.h> 75#include <dev/pci/pcireg.h> 76 77#ifdef HIFN_RNDTEST 78#include <dev/rndtest/rndtest.h> 79#endif 80#include <dev/hifn/hifn7751reg.h> 81#include <dev/hifn/hifn7751var.h> 82 83/* 84 * Prototypes and count for the pci_device structure 85 */ 86static int hifn_probe(device_t); 87static int hifn_attach(device_t); 88static int hifn_detach(device_t); 89static int hifn_suspend(device_t); 90static int hifn_resume(device_t); 91static void hifn_shutdown(device_t); 92 93static device_method_t hifn_methods[] = { 94 /* Device interface */ 95 DEVMETHOD(device_probe, hifn_probe), 96 DEVMETHOD(device_attach, hifn_attach), 97 DEVMETHOD(device_detach, hifn_detach), 98 DEVMETHOD(device_suspend, hifn_suspend), 99 DEVMETHOD(device_resume, hifn_resume), 100 DEVMETHOD(device_shutdown, hifn_shutdown), 101 102 /* bus interface */ 103 DEVMETHOD(bus_print_child, bus_generic_print_child), 104 DEVMETHOD(bus_driver_added, bus_generic_driver_added), 105 106 { 0, 0 } 107}; 108static driver_t hifn_driver = { 109 "hifn", 110 hifn_methods, 111 sizeof (struct hifn_softc) 112}; 113static devclass_t hifn_devclass; 114 115DRIVER_MODULE(hifn, pci, hifn_driver, hifn_devclass, 0, 0); 116MODULE_DEPEND(hifn, crypto, 1, 1, 1); 117#ifdef HIFN_RNDTEST 118MODULE_DEPEND(hifn, rndtest, 1, 1, 1); 119#endif 120 121static void hifn_reset_board(struct hifn_softc *, int); 122static void hifn_reset_puc(struct hifn_softc *); 123static void hifn_puc_wait(struct hifn_softc *); 124static int hifn_enable_crypto(struct hifn_softc *); 125static void hifn_set_retry(struct hifn_softc *sc); 126static void hifn_init_dma(struct hifn_softc *); 127static void hifn_init_pci_registers(struct hifn_softc *); 128static int hifn_sramsize(struct hifn_softc *); 129static int hifn_dramsize(struct hifn_softc *); 130static int hifn_ramtype(struct hifn_softc *); 131static void hifn_sessions(struct hifn_softc *); 132static void hifn_intr(void *); 133static u_int hifn_write_command(struct hifn_command *, u_int8_t *); 134static u_int32_t hifn_next_signature(u_int32_t a, u_int cnt); 135static int hifn_newsession(void *, u_int32_t *, struct cryptoini *); 136static int hifn_freesession(void *, u_int64_t); 137static int hifn_process(void *, struct cryptop *, int); 138static void hifn_callback(struct hifn_softc *, struct hifn_command *, u_int8_t *); 139static int hifn_crypto(struct hifn_softc *, struct hifn_command *, struct cryptop *, int); 140static int hifn_readramaddr(struct hifn_softc *, int, u_int8_t *); 141static int hifn_writeramaddr(struct hifn_softc *, int, u_int8_t *); 142static int hifn_dmamap_load_src(struct hifn_softc *, struct hifn_command *); 143static int hifn_dmamap_load_dst(struct hifn_softc *, struct hifn_command *); 144static int hifn_init_pubrng(struct hifn_softc *); 145static void hifn_rng(void *); 146static void hifn_tick(void *); 147static void hifn_abort(struct hifn_softc *); 148static void hifn_alloc_slot(struct hifn_softc *, int *, int *, int *, int *); 149 150static void hifn_write_reg_0(struct hifn_softc *, bus_size_t, u_int32_t); 151static void hifn_write_reg_1(struct hifn_softc *, bus_size_t, u_int32_t); 152 153static __inline u_int32_t 154READ_REG_0(struct hifn_softc *sc, bus_size_t reg) 155{ 156 u_int32_t v = bus_space_read_4(sc->sc_st0, sc->sc_sh0, reg); 157 sc->sc_bar0_lastreg = (bus_size_t) -1; 158 return (v); 159} 160#define WRITE_REG_0(sc, reg, val) hifn_write_reg_0(sc, reg, val) 161 162static __inline u_int32_t 163READ_REG_1(struct hifn_softc *sc, bus_size_t reg) 164{ 165 u_int32_t v = bus_space_read_4(sc->sc_st1, sc->sc_sh1, reg); 166 sc->sc_bar1_lastreg = (bus_size_t) -1; 167 return (v); 168} 169#define WRITE_REG_1(sc, reg, val) hifn_write_reg_1(sc, reg, val) 170 171SYSCTL_NODE(_hw, OID_AUTO, hifn, CTLFLAG_RD, 0, "Hifn driver parameters"); 172 173#ifdef HIFN_DEBUG 174static int hifn_debug = 0; 175SYSCTL_INT(_hw_hifn, OID_AUTO, debug, CTLFLAG_RW, &hifn_debug, 176 0, "control debugging msgs"); 177#endif 178 179static struct hifn_stats hifnstats; 180SYSCTL_STRUCT(_hw_hifn, OID_AUTO, stats, CTLFLAG_RD, &hifnstats, 181 hifn_stats, "driver statistics"); 182static int hifn_maxbatch = 1; 183SYSCTL_INT(_hw_hifn, OID_AUTO, maxbatch, CTLFLAG_RW, &hifn_maxbatch, 184 0, "max ops to batch w/o interrupt"); 185 186/* 187 * Probe for a supported device. The PCI vendor and device 188 * IDs are used to detect devices we know how to handle. 189 */ 190static int 191hifn_probe(device_t dev) 192{ 193 if (pci_get_vendor(dev) == PCI_VENDOR_INVERTEX && 194 pci_get_device(dev) == PCI_PRODUCT_INVERTEX_AEON) 195 return (BUS_PROBE_DEFAULT); 196 if (pci_get_vendor(dev) == PCI_VENDOR_HIFN && 197 (pci_get_device(dev) == PCI_PRODUCT_HIFN_7751 || 198 pci_get_device(dev) == PCI_PRODUCT_HIFN_7951 || 199 pci_get_device(dev) == PCI_PRODUCT_HIFN_7955 || 200 pci_get_device(dev) == PCI_PRODUCT_HIFN_7956 || 201 pci_get_device(dev) == PCI_PRODUCT_HIFN_7811)) 202 return (BUS_PROBE_DEFAULT); 203 if (pci_get_vendor(dev) == PCI_VENDOR_NETSEC && 204 pci_get_device(dev) == PCI_PRODUCT_NETSEC_7751) 205 return (BUS_PROBE_DEFAULT); 206 return (ENXIO); 207} 208 209static void 210hifn_dmamap_cb(void *arg, bus_dma_segment_t *segs, int nseg, int error) 211{ 212 bus_addr_t *paddr = (bus_addr_t*) arg; 213 *paddr = segs->ds_addr; 214} 215 216static const char* 217hifn_partname(struct hifn_softc *sc) 218{ 219 /* XXX sprintf numbers when not decoded */ 220 switch (pci_get_vendor(sc->sc_dev)) { 221 case PCI_VENDOR_HIFN: 222 switch (pci_get_device(sc->sc_dev)) { 223 case PCI_PRODUCT_HIFN_6500: return "Hifn 6500"; 224 case PCI_PRODUCT_HIFN_7751: return "Hifn 7751"; 225 case PCI_PRODUCT_HIFN_7811: return "Hifn 7811"; 226 case PCI_PRODUCT_HIFN_7951: return "Hifn 7951"; 227 case PCI_PRODUCT_HIFN_7955: return "Hifn 7955"; 228 case PCI_PRODUCT_HIFN_7956: return "Hifn 7956"; 229 } 230 return "Hifn unknown-part"; 231 case PCI_VENDOR_INVERTEX: 232 switch (pci_get_device(sc->sc_dev)) { 233 case PCI_PRODUCT_INVERTEX_AEON: return "Invertex AEON"; 234 } 235 return "Invertex unknown-part"; 236 case PCI_VENDOR_NETSEC: 237 switch (pci_get_device(sc->sc_dev)) { 238 case PCI_PRODUCT_NETSEC_7751: return "NetSec 7751"; 239 } 240 return "NetSec unknown-part"; 241 } 242 return "Unknown-vendor unknown-part"; 243} 244 245static void 246default_harvest(struct rndtest_state *rsp, void *buf, u_int count) 247{ 248 random_harvest(buf, count, count*NBBY, 0, RANDOM_PURE); 249} 250 251static u_int 252checkmaxmin(device_t dev, const char *what, u_int v, u_int min, u_int max) 253{ 254 if (v > max) { 255 device_printf(dev, "Warning, %s %u out of range, " 256 "using max %u\n", what, v, max); 257 v = max; 258 } else if (v < min) { 259 device_printf(dev, "Warning, %s %u out of range, " 260 "using min %u\n", what, v, min); 261 v = min; 262 } 263 return v; 264} 265 266/* 267 * Select PLL configuration for 795x parts. This is complicated in 268 * that we cannot determine the optimal parameters without user input. 269 * The reference clock is derived from an external clock through a 270 * multiplier. The external clock is either the host bus (i.e. PCI) 271 * or an external clock generator. When using the PCI bus we assume 272 * the clock is either 33 or 66 MHz; for an external source we cannot 273 * tell the speed. 274 * 275 * PLL configuration is done with a string: "pci" for PCI bus, or "ext" 276 * for an external source, followed by the frequency. We calculate 277 * the appropriate multiplier and PLL register contents accordingly. 278 * When no configuration is given we default to "pci66" since that 279 * always will allow the card to work. If a card is using the PCI 280 * bus clock and in a 33MHz slot then it will be operating at half 281 * speed until the correct information is provided. 282 */ 283static void 284hifn_getpllconfig(device_t dev, u_int *pll) 285{ 286 const char *pllspec; 287 u_int freq, mul, fl, fh; 288 u_int32_t pllconfig; 289 char *nxt; 290 291 if (resource_string_value("hifn", device_get_unit(dev), 292 "pllconfig", &pllspec)) 293 pllspec = "pci66"; 294 fl = 33, fh = 66; 295 pllconfig = 0; 296 if (strncmp(pllspec, "ext", 3) == 0) { 297 pllspec += 3; 298 pllconfig |= HIFN_PLL_REF_SEL; 299 switch (pci_get_device(dev)) { 300 case PCI_PRODUCT_HIFN_7955: 301 case PCI_PRODUCT_HIFN_7956: 302 fl = 20, fh = 100; 303 break; 304#ifdef notyet 305 case PCI_PRODUCT_HIFN_7954: 306 fl = 20, fh = 66; 307 break; 308#endif 309 } 310 } else if (strncmp(pllspec, "pci", 3) == 0) 311 pllspec += 3; 312 freq = strtoul(pllspec, &nxt, 10); 313 if (nxt == pllspec) 314 freq = 66; 315 else 316 freq = checkmaxmin(dev, "frequency", freq, fl, fh); 317 /* 318 * Calculate multiplier. We target a Fck of 266 MHz, 319 * allowing only even values, possibly rounded down. 320 * Multipliers > 8 must set the charge pump current. 321 */ 322 mul = checkmaxmin(dev, "PLL divisor", (266 / freq) &~ 1, 2, 12); 323 pllconfig |= (mul / 2 - 1) << HIFN_PLL_ND_SHIFT; 324 if (mul > 8) 325 pllconfig |= HIFN_PLL_IS; 326 *pll = pllconfig; 327} 328 329/* 330 * Attach an interface that successfully probed. 331 */ 332static int 333hifn_attach(device_t dev) 334{ 335 struct hifn_softc *sc = device_get_softc(dev); 336 u_int32_t cmd; 337 caddr_t kva; 338 int rseg, rid; 339 char rbase; 340 u_int16_t ena, rev; 341 342 KASSERT(sc != NULL, ("hifn_attach: null software carrier!")); 343 bzero(sc, sizeof (*sc)); 344 sc->sc_dev = dev; 345 346 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), "hifn driver", MTX_DEF); 347 348 /* XXX handle power management */ 349 350 /* 351 * The 7951 and 795x have a random number generator and 352 * public key support; note this. 353 */ 354 if (pci_get_vendor(dev) == PCI_VENDOR_HIFN && 355 (pci_get_device(dev) == PCI_PRODUCT_HIFN_7951 || 356 pci_get_device(dev) == PCI_PRODUCT_HIFN_7955 || 357 pci_get_device(dev) == PCI_PRODUCT_HIFN_7956)) 358 sc->sc_flags = HIFN_HAS_RNG | HIFN_HAS_PUBLIC; 359 /* 360 * The 7811 has a random number generator and 361 * we also note it's identity 'cuz of some quirks. 362 */ 363 if (pci_get_vendor(dev) == PCI_VENDOR_HIFN && 364 pci_get_device(dev) == PCI_PRODUCT_HIFN_7811) 365 sc->sc_flags |= HIFN_IS_7811 | HIFN_HAS_RNG; 366 367 /* 368 * The 795x parts support AES. 369 */ 370 if (pci_get_vendor(dev) == PCI_VENDOR_HIFN && 371 (pci_get_device(dev) == PCI_PRODUCT_HIFN_7955 || 372 pci_get_device(dev) == PCI_PRODUCT_HIFN_7956)) { 373 sc->sc_flags |= HIFN_IS_7956 | HIFN_HAS_AES; 374 /* 375 * Select PLL configuration. This depends on the 376 * bus and board design and must be manually configured 377 * if the default setting is unacceptable. 378 */ 379 hifn_getpllconfig(dev, &sc->sc_pllconfig); 380 } 381 382 /* 383 * Configure support for memory-mapped access to 384 * registers and for DMA operations. 385 */ 386#define PCIM_ENA (PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN) 387 cmd = pci_read_config(dev, PCIR_COMMAND, 4); 388 cmd |= PCIM_ENA; 389 pci_write_config(dev, PCIR_COMMAND, cmd, 4); 390 cmd = pci_read_config(dev, PCIR_COMMAND, 4); 391 if ((cmd & PCIM_ENA) != PCIM_ENA) { 392 device_printf(dev, "failed to enable %s\n", 393 (cmd & PCIM_ENA) == 0 ? 394 "memory mapping & bus mastering" : 395 (cmd & PCIM_CMD_MEMEN) == 0 ? 396 "memory mapping" : "bus mastering"); 397 goto fail_pci; 398 } 399#undef PCIM_ENA 400 401 /* 402 * Setup PCI resources. Note that we record the bus 403 * tag and handle for each register mapping, this is 404 * used by the READ_REG_0, WRITE_REG_0, READ_REG_1, 405 * and WRITE_REG_1 macros throughout the driver. 406 */ 407 rid = HIFN_BAR0; 408 sc->sc_bar0res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, 409 RF_ACTIVE); 410 if (sc->sc_bar0res == NULL) { 411 device_printf(dev, "cannot map bar%d register space\n", 0); 412 goto fail_pci; 413 } 414 sc->sc_st0 = rman_get_bustag(sc->sc_bar0res); 415 sc->sc_sh0 = rman_get_bushandle(sc->sc_bar0res); 416 sc->sc_bar0_lastreg = (bus_size_t) -1; 417 418 rid = HIFN_BAR1; 419 sc->sc_bar1res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, 420 RF_ACTIVE); 421 if (sc->sc_bar1res == NULL) { 422 device_printf(dev, "cannot map bar%d register space\n", 1); 423 goto fail_io0; 424 } 425 sc->sc_st1 = rman_get_bustag(sc->sc_bar1res); 426 sc->sc_sh1 = rman_get_bushandle(sc->sc_bar1res); 427 sc->sc_bar1_lastreg = (bus_size_t) -1; 428 429 hifn_set_retry(sc); 430 431 /* 432 * Setup the area where the Hifn DMA's descriptors 433 * and associated data structures. 434 */ 435 if (bus_dma_tag_create(NULL, /* parent */ 436 1, 0, /* alignment,boundary */ 437 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 438 BUS_SPACE_MAXADDR, /* highaddr */ 439 NULL, NULL, /* filter, filterarg */ 440 HIFN_MAX_DMALEN, /* maxsize */ 441 MAX_SCATTER, /* nsegments */ 442 HIFN_MAX_SEGLEN, /* maxsegsize */ 443 BUS_DMA_ALLOCNOW, /* flags */ 444 NULL, /* lockfunc */ 445 NULL, /* lockarg */ 446 &sc->sc_dmat)) { 447 device_printf(dev, "cannot allocate DMA tag\n"); 448 goto fail_io1; 449 } 450 if (bus_dmamap_create(sc->sc_dmat, BUS_DMA_NOWAIT, &sc->sc_dmamap)) { 451 device_printf(dev, "cannot create dma map\n"); 452 bus_dma_tag_destroy(sc->sc_dmat); 453 goto fail_io1; 454 } 455 if (bus_dmamem_alloc(sc->sc_dmat, (void**) &kva, BUS_DMA_NOWAIT, &sc->sc_dmamap)) { 456 device_printf(dev, "cannot alloc dma buffer\n"); 457 bus_dmamap_destroy(sc->sc_dmat, sc->sc_dmamap); 458 bus_dma_tag_destroy(sc->sc_dmat); 459 goto fail_io1; 460 } 461 if (bus_dmamap_load(sc->sc_dmat, sc->sc_dmamap, kva, 462 sizeof (*sc->sc_dma), 463 hifn_dmamap_cb, &sc->sc_dma_physaddr, 464 BUS_DMA_NOWAIT)) { 465 device_printf(dev, "cannot load dma map\n"); 466 bus_dmamem_free(sc->sc_dmat, kva, sc->sc_dmamap); 467 bus_dmamap_destroy(sc->sc_dmat, sc->sc_dmamap); 468 bus_dma_tag_destroy(sc->sc_dmat); 469 goto fail_io1; 470 } 471 sc->sc_dma = (struct hifn_dma *)kva; 472 bzero(sc->sc_dma, sizeof(*sc->sc_dma)); 473 474 KASSERT(sc->sc_st0 != 0, ("hifn_attach: null bar0 tag!")); 475 KASSERT(sc->sc_sh0 != 0, ("hifn_attach: null bar0 handle!")); 476 KASSERT(sc->sc_st1 != 0, ("hifn_attach: null bar1 tag!")); 477 KASSERT(sc->sc_sh1 != 0, ("hifn_attach: null bar1 handle!")); 478 479 /* 480 * Reset the board and do the ``secret handshake'' 481 * to enable the crypto support. Then complete the 482 * initialization procedure by setting up the interrupt 483 * and hooking in to the system crypto support so we'll 484 * get used for system services like the crypto device, 485 * IPsec, RNG device, etc. 486 */ 487 hifn_reset_board(sc, 0); 488 489 if (hifn_enable_crypto(sc) != 0) { 490 device_printf(dev, "crypto enabling failed\n"); 491 goto fail_mem; 492 } 493 hifn_reset_puc(sc); 494 495 hifn_init_dma(sc); 496 hifn_init_pci_registers(sc); 497 498 /* XXX can't dynamically determine ram type for 795x; force dram */ 499 if (sc->sc_flags & HIFN_IS_7956) 500 sc->sc_drammodel = 1; 501 else if (hifn_ramtype(sc)) 502 goto fail_mem; 503 504 if (sc->sc_drammodel == 0) 505 hifn_sramsize(sc); 506 else 507 hifn_dramsize(sc); 508 509 /* 510 * Workaround for NetSec 7751 rev A: half ram size because two 511 * of the address lines were left floating 512 */ 513 if (pci_get_vendor(dev) == PCI_VENDOR_NETSEC && 514 pci_get_device(dev) == PCI_PRODUCT_NETSEC_7751 && 515 pci_get_revid(dev) == 0x61) /*XXX???*/ 516 sc->sc_ramsize >>= 1; 517 518 /* 519 * Arrange the interrupt line. 520 */ 521 rid = 0; 522 sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, 523 RF_SHAREABLE|RF_ACTIVE); 524 if (sc->sc_irq == NULL) { 525 device_printf(dev, "could not map interrupt\n"); 526 goto fail_mem; 527 } 528 /* 529 * NB: Network code assumes we are blocked with splimp() 530 * so make sure the IRQ is marked appropriately. 531 */ 532 if (bus_setup_intr(dev, sc->sc_irq, INTR_TYPE_NET | INTR_MPSAFE, 533 NULL, hifn_intr, sc, &sc->sc_intrhand)) { 534 device_printf(dev, "could not setup interrupt\n"); 535 goto fail_intr2; 536 } 537 538 hifn_sessions(sc); 539 540 /* 541 * NB: Keep only the low 16 bits; this masks the chip id 542 * from the 7951. 543 */ 544 rev = READ_REG_1(sc, HIFN_1_REVID) & 0xffff; 545 546 rseg = sc->sc_ramsize / 1024; 547 rbase = 'K'; 548 if (sc->sc_ramsize >= (1024 * 1024)) { 549 rbase = 'M'; 550 rseg /= 1024; 551 } 552 device_printf(sc->sc_dev, "%s, rev %u, %d%cB %cram", 553 hifn_partname(sc), rev, 554 rseg, rbase, sc->sc_drammodel ? 'd' : 's'); 555 if (sc->sc_flags & HIFN_IS_7956) 556 printf(", pll=0x%x<%s clk, %ux mult>", 557 sc->sc_pllconfig, 558 sc->sc_pllconfig & HIFN_PLL_REF_SEL ? "ext" : "pci", 559 2 + 2*((sc->sc_pllconfig & HIFN_PLL_ND) >> 11)); 560 printf("\n"); 561 562 sc->sc_cid = crypto_get_driverid(0); 563 if (sc->sc_cid < 0) { 564 device_printf(dev, "could not get crypto driver id\n"); 565 goto fail_intr; 566 } 567 568 WRITE_REG_0(sc, HIFN_0_PUCNFG, 569 READ_REG_0(sc, HIFN_0_PUCNFG) | HIFN_PUCNFG_CHIPID); 570 ena = READ_REG_0(sc, HIFN_0_PUSTAT) & HIFN_PUSTAT_CHIPENA; 571 572 switch (ena) { 573 case HIFN_PUSTAT_ENA_2: 574 crypto_register(sc->sc_cid, CRYPTO_3DES_CBC, 0, 0, 575 hifn_newsession, hifn_freesession, hifn_process, sc); 576 crypto_register(sc->sc_cid, CRYPTO_ARC4, 0, 0, 577 hifn_newsession, hifn_freesession, hifn_process, sc); 578 if (sc->sc_flags & HIFN_HAS_AES) 579 crypto_register(sc->sc_cid, CRYPTO_AES_CBC, 0, 0, 580 hifn_newsession, hifn_freesession, 581 hifn_process, sc); 582 /*FALLTHROUGH*/ 583 case HIFN_PUSTAT_ENA_1: 584 crypto_register(sc->sc_cid, CRYPTO_MD5, 0, 0, 585 hifn_newsession, hifn_freesession, hifn_process, sc); 586 crypto_register(sc->sc_cid, CRYPTO_SHA1, 0, 0, 587 hifn_newsession, hifn_freesession, hifn_process, sc); 588 crypto_register(sc->sc_cid, CRYPTO_MD5_HMAC, 0, 0, 589 hifn_newsession, hifn_freesession, hifn_process, sc); 590 crypto_register(sc->sc_cid, CRYPTO_SHA1_HMAC, 0, 0, 591 hifn_newsession, hifn_freesession, hifn_process, sc); 592 crypto_register(sc->sc_cid, CRYPTO_DES_CBC, 0, 0, 593 hifn_newsession, hifn_freesession, hifn_process, sc); 594 break; 595 } 596 597 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 598 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 599 600 if (sc->sc_flags & (HIFN_HAS_PUBLIC | HIFN_HAS_RNG)) 601 hifn_init_pubrng(sc); 602 603 callout_init(&sc->sc_tickto, CALLOUT_MPSAFE); 604 callout_reset(&sc->sc_tickto, hz, hifn_tick, sc); 605 606 return (0); 607 608fail_intr: 609 bus_teardown_intr(dev, sc->sc_irq, sc->sc_intrhand); 610fail_intr2: 611 /* XXX don't store rid */ 612 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq); 613fail_mem: 614 bus_dmamap_unload(sc->sc_dmat, sc->sc_dmamap); 615 bus_dmamem_free(sc->sc_dmat, sc->sc_dma, sc->sc_dmamap); 616 bus_dmamap_destroy(sc->sc_dmat, sc->sc_dmamap); 617 bus_dma_tag_destroy(sc->sc_dmat); 618 619 /* Turn off DMA polling */ 620 WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET | 621 HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE); 622fail_io1: 623 bus_release_resource(dev, SYS_RES_MEMORY, HIFN_BAR1, sc->sc_bar1res); 624fail_io0: 625 bus_release_resource(dev, SYS_RES_MEMORY, HIFN_BAR0, sc->sc_bar0res); 626fail_pci: 627 mtx_destroy(&sc->sc_mtx); 628 return (ENXIO); 629} 630 631/* 632 * Detach an interface that successfully probed. 633 */ 634static int 635hifn_detach(device_t dev) 636{ 637 struct hifn_softc *sc = device_get_softc(dev); 638 639 KASSERT(sc != NULL, ("hifn_detach: null software carrier!")); 640 641 /* disable interrupts */ 642 WRITE_REG_1(sc, HIFN_1_DMA_IER, 0); 643 644 /*XXX other resources */ 645 callout_stop(&sc->sc_tickto); 646 callout_stop(&sc->sc_rngto); 647#ifdef HIFN_RNDTEST 648 if (sc->sc_rndtest) 649 rndtest_detach(sc->sc_rndtest); 650#endif 651 652 /* Turn off DMA polling */ 653 WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET | 654 HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE); 655 656 crypto_unregister_all(sc->sc_cid); 657 658 bus_generic_detach(dev); /*XXX should be no children, right? */ 659 660 bus_teardown_intr(dev, sc->sc_irq, sc->sc_intrhand); 661 /* XXX don't store rid */ 662 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq); 663 664 bus_dmamap_unload(sc->sc_dmat, sc->sc_dmamap); 665 bus_dmamem_free(sc->sc_dmat, sc->sc_dma, sc->sc_dmamap); 666 bus_dmamap_destroy(sc->sc_dmat, sc->sc_dmamap); 667 bus_dma_tag_destroy(sc->sc_dmat); 668 669 bus_release_resource(dev, SYS_RES_MEMORY, HIFN_BAR1, sc->sc_bar1res); 670 bus_release_resource(dev, SYS_RES_MEMORY, HIFN_BAR0, sc->sc_bar0res); 671 672 mtx_destroy(&sc->sc_mtx); 673 674 return (0); 675} 676 677/* 678 * Stop all chip I/O so that the kernel's probe routines don't 679 * get confused by errant DMAs when rebooting. 680 */ 681static void 682hifn_shutdown(device_t dev) 683{ 684#ifdef notyet 685 hifn_stop(device_get_softc(dev)); 686#endif 687} 688 689/* 690 * Device suspend routine. Stop the interface and save some PCI 691 * settings in case the BIOS doesn't restore them properly on 692 * resume. 693 */ 694static int 695hifn_suspend(device_t dev) 696{ 697 struct hifn_softc *sc = device_get_softc(dev); 698#ifdef notyet 699 hifn_stop(sc); 700#endif 701 sc->sc_suspended = 1; 702 703 return (0); 704} 705 706/* 707 * Device resume routine. Restore some PCI settings in case the BIOS 708 * doesn't, re-enable busmastering, and restart the interface if 709 * appropriate. 710 */ 711static int 712hifn_resume(device_t dev) 713{ 714 struct hifn_softc *sc = device_get_softc(dev); 715#ifdef notyet 716 /* reenable busmastering */ 717 pci_enable_busmaster(dev); 718 pci_enable_io(dev, HIFN_RES); 719 720 /* reinitialize interface if necessary */ 721 if (ifp->if_flags & IFF_UP) 722 rl_init(sc); 723#endif 724 sc->sc_suspended = 0; 725 726 return (0); 727} 728 729static int 730hifn_init_pubrng(struct hifn_softc *sc) 731{ 732 u_int32_t r; 733 int i; 734 735#ifdef HIFN_RNDTEST 736 sc->sc_rndtest = rndtest_attach(sc->sc_dev); 737 if (sc->sc_rndtest) 738 sc->sc_harvest = rndtest_harvest; 739 else 740 sc->sc_harvest = default_harvest; 741#else 742 sc->sc_harvest = default_harvest; 743#endif 744 if ((sc->sc_flags & HIFN_IS_7811) == 0) { 745 /* Reset 7951 public key/rng engine */ 746 WRITE_REG_1(sc, HIFN_1_PUB_RESET, 747 READ_REG_1(sc, HIFN_1_PUB_RESET) | HIFN_PUBRST_RESET); 748 749 for (i = 0; i < 100; i++) { 750 DELAY(1000); 751 if ((READ_REG_1(sc, HIFN_1_PUB_RESET) & 752 HIFN_PUBRST_RESET) == 0) 753 break; 754 } 755 756 if (i == 100) { 757 device_printf(sc->sc_dev, "public key init failed\n"); 758 return (1); 759 } 760 } 761 762 /* Enable the rng, if available */ 763 if (sc->sc_flags & HIFN_HAS_RNG) { 764 if (sc->sc_flags & HIFN_IS_7811) { 765 r = READ_REG_1(sc, HIFN_1_7811_RNGENA); 766 if (r & HIFN_7811_RNGENA_ENA) { 767 r &= ~HIFN_7811_RNGENA_ENA; 768 WRITE_REG_1(sc, HIFN_1_7811_RNGENA, r); 769 } 770 WRITE_REG_1(sc, HIFN_1_7811_RNGCFG, 771 HIFN_7811_RNGCFG_DEFL); 772 r |= HIFN_7811_RNGENA_ENA; 773 WRITE_REG_1(sc, HIFN_1_7811_RNGENA, r); 774 } else 775 WRITE_REG_1(sc, HIFN_1_RNG_CONFIG, 776 READ_REG_1(sc, HIFN_1_RNG_CONFIG) | 777 HIFN_RNGCFG_ENA); 778 779 sc->sc_rngfirst = 1; 780 if (hz >= 100) 781 sc->sc_rnghz = hz / 100; 782 else 783 sc->sc_rnghz = 1; 784 callout_init(&sc->sc_rngto, CALLOUT_MPSAFE); 785 callout_reset(&sc->sc_rngto, sc->sc_rnghz, hifn_rng, sc); 786 } 787 788 /* Enable public key engine, if available */ 789 if (sc->sc_flags & HIFN_HAS_PUBLIC) { 790 WRITE_REG_1(sc, HIFN_1_PUB_IEN, HIFN_PUBIEN_DONE); 791 sc->sc_dmaier |= HIFN_DMAIER_PUBDONE; 792 WRITE_REG_1(sc, HIFN_1_DMA_IER, sc->sc_dmaier); 793 } 794 795 return (0); 796} 797 798static void 799hifn_rng(void *vsc) 800{ 801#define RANDOM_BITS(n) (n)*sizeof (u_int32_t), (n)*sizeof (u_int32_t)*NBBY, 0 802 struct hifn_softc *sc = vsc; 803 u_int32_t sts, num[2]; 804 int i; 805 806 if (sc->sc_flags & HIFN_IS_7811) { 807 for (i = 0; i < 5; i++) { 808 sts = READ_REG_1(sc, HIFN_1_7811_RNGSTS); 809 if (sts & HIFN_7811_RNGSTS_UFL) { 810 device_printf(sc->sc_dev, 811 "RNG underflow: disabling\n"); 812 return; 813 } 814 if ((sts & HIFN_7811_RNGSTS_RDY) == 0) 815 break; 816 817 /* 818 * There are at least two words in the RNG FIFO 819 * at this point. 820 */ 821 num[0] = READ_REG_1(sc, HIFN_1_7811_RNGDAT); 822 num[1] = READ_REG_1(sc, HIFN_1_7811_RNGDAT); 823 /* NB: discard first data read */ 824 if (sc->sc_rngfirst) 825 sc->sc_rngfirst = 0; 826 else 827 (*sc->sc_harvest)(sc->sc_rndtest, 828 num, sizeof (num)); 829 } 830 } else { 831 num[0] = READ_REG_1(sc, HIFN_1_RNG_DATA); 832 833 /* NB: discard first data read */ 834 if (sc->sc_rngfirst) 835 sc->sc_rngfirst = 0; 836 else 837 (*sc->sc_harvest)(sc->sc_rndtest, 838 num, sizeof (num[0])); 839 } 840 841 callout_reset(&sc->sc_rngto, sc->sc_rnghz, hifn_rng, sc); 842#undef RANDOM_BITS 843} 844 845static void 846hifn_puc_wait(struct hifn_softc *sc) 847{ 848 int i; 849 850 for (i = 5000; i > 0; i--) { 851 DELAY(1); 852 if (!(READ_REG_0(sc, HIFN_0_PUCTRL) & HIFN_PUCTRL_RESET)) 853 break; 854 } 855 if (!i) 856 device_printf(sc->sc_dev, "proc unit did not reset\n"); 857} 858 859/* 860 * Reset the processing unit. 861 */ 862static void 863hifn_reset_puc(struct hifn_softc *sc) 864{ 865 /* Reset processing unit */ 866 WRITE_REG_0(sc, HIFN_0_PUCTRL, HIFN_PUCTRL_DMAENA); 867 hifn_puc_wait(sc); 868} 869 870/* 871 * Set the Retry and TRDY registers; note that we set them to 872 * zero because the 7811 locks up when forced to retry (section 873 * 3.6 of "Specification Update SU-0014-04". Not clear if we 874 * should do this for all Hifn parts, but it doesn't seem to hurt. 875 */ 876static void 877hifn_set_retry(struct hifn_softc *sc) 878{ 879 /* NB: RETRY only responds to 8-bit reads/writes */ 880 pci_write_config(sc->sc_dev, HIFN_RETRY_TIMEOUT, 0, 1); 881 pci_write_config(sc->sc_dev, HIFN_TRDY_TIMEOUT, 0, 4); 882} 883 884/* 885 * Resets the board. Values in the regesters are left as is 886 * from the reset (i.e. initial values are assigned elsewhere). 887 */ 888static void 889hifn_reset_board(struct hifn_softc *sc, int full) 890{ 891 u_int32_t reg; 892 893 /* 894 * Set polling in the DMA configuration register to zero. 0x7 avoids 895 * resetting the board and zeros out the other fields. 896 */ 897 WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET | 898 HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE); 899 900 /* 901 * Now that polling has been disabled, we have to wait 1 ms 902 * before resetting the board. 903 */ 904 DELAY(1000); 905 906 /* Reset the DMA unit */ 907 if (full) { 908 WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MODE); 909 DELAY(1000); 910 } else { 911 WRITE_REG_1(sc, HIFN_1_DMA_CNFG, 912 HIFN_DMACNFG_MODE | HIFN_DMACNFG_MSTRESET); 913 hifn_reset_puc(sc); 914 } 915 916 KASSERT(sc->sc_dma != NULL, ("hifn_reset_board: null DMA tag!")); 917 bzero(sc->sc_dma, sizeof(*sc->sc_dma)); 918 919 /* Bring dma unit out of reset */ 920 WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET | 921 HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE); 922 923 hifn_puc_wait(sc); 924 hifn_set_retry(sc); 925 926 if (sc->sc_flags & HIFN_IS_7811) { 927 for (reg = 0; reg < 1000; reg++) { 928 if (READ_REG_1(sc, HIFN_1_7811_MIPSRST) & 929 HIFN_MIPSRST_CRAMINIT) 930 break; 931 DELAY(1000); 932 } 933 if (reg == 1000) 934 printf(": cram init timeout\n"); 935 } 936} 937 938static u_int32_t 939hifn_next_signature(u_int32_t a, u_int cnt) 940{ 941 int i; 942 u_int32_t v; 943 944 for (i = 0; i < cnt; i++) { 945 946 /* get the parity */ 947 v = a & 0x80080125; 948 v ^= v >> 16; 949 v ^= v >> 8; 950 v ^= v >> 4; 951 v ^= v >> 2; 952 v ^= v >> 1; 953 954 a = (v & 1) ^ (a << 1); 955 } 956 957 return a; 958} 959 960struct pci2id { 961 u_short pci_vendor; 962 u_short pci_prod; 963 char card_id[13]; 964}; 965static struct pci2id pci2id[] = { 966 { 967 PCI_VENDOR_HIFN, 968 PCI_PRODUCT_HIFN_7951, 969 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 970 0x00, 0x00, 0x00, 0x00, 0x00 } 971 }, { 972 PCI_VENDOR_HIFN, 973 PCI_PRODUCT_HIFN_7955, 974 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 975 0x00, 0x00, 0x00, 0x00, 0x00 } 976 }, { 977 PCI_VENDOR_HIFN, 978 PCI_PRODUCT_HIFN_7956, 979 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 980 0x00, 0x00, 0x00, 0x00, 0x00 } 981 }, { 982 PCI_VENDOR_NETSEC, 983 PCI_PRODUCT_NETSEC_7751, 984 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 985 0x00, 0x00, 0x00, 0x00, 0x00 } 986 }, { 987 PCI_VENDOR_INVERTEX, 988 PCI_PRODUCT_INVERTEX_AEON, 989 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 990 0x00, 0x00, 0x00, 0x00, 0x00 } 991 }, { 992 PCI_VENDOR_HIFN, 993 PCI_PRODUCT_HIFN_7811, 994 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 995 0x00, 0x00, 0x00, 0x00, 0x00 } 996 }, { 997 /* 998 * Other vendors share this PCI ID as well, such as 999 * http://www.powercrypt.com, and obviously they also 1000 * use the same key. 1001 */ 1002 PCI_VENDOR_HIFN, 1003 PCI_PRODUCT_HIFN_7751, 1004 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1005 0x00, 0x00, 0x00, 0x00, 0x00 } 1006 }, 1007}; 1008 1009/* 1010 * Checks to see if crypto is already enabled. If crypto isn't enable, 1011 * "hifn_enable_crypto" is called to enable it. The check is important, 1012 * as enabling crypto twice will lock the board. 1013 */ 1014static int 1015hifn_enable_crypto(struct hifn_softc *sc) 1016{ 1017 u_int32_t dmacfg, ramcfg, encl, addr, i; 1018 char *offtbl = NULL; 1019 1020 for (i = 0; i < sizeof(pci2id)/sizeof(pci2id[0]); i++) { 1021 if (pci2id[i].pci_vendor == pci_get_vendor(sc->sc_dev) && 1022 pci2id[i].pci_prod == pci_get_device(sc->sc_dev)) { 1023 offtbl = pci2id[i].card_id; 1024 break; 1025 } 1026 } 1027 if (offtbl == NULL) { 1028 device_printf(sc->sc_dev, "Unknown card!\n"); 1029 return (1); 1030 } 1031 1032 ramcfg = READ_REG_0(sc, HIFN_0_PUCNFG); 1033 dmacfg = READ_REG_1(sc, HIFN_1_DMA_CNFG); 1034 1035 /* 1036 * The RAM config register's encrypt level bit needs to be set before 1037 * every read performed on the encryption level register. 1038 */ 1039 WRITE_REG_0(sc, HIFN_0_PUCNFG, ramcfg | HIFN_PUCNFG_CHIPID); 1040 1041 encl = READ_REG_0(sc, HIFN_0_PUSTAT) & HIFN_PUSTAT_CHIPENA; 1042 1043 /* 1044 * Make sure we don't re-unlock. Two unlocks kills chip until the 1045 * next reboot. 1046 */ 1047 if (encl == HIFN_PUSTAT_ENA_1 || encl == HIFN_PUSTAT_ENA_2) { 1048#ifdef HIFN_DEBUG 1049 if (hifn_debug) 1050 device_printf(sc->sc_dev, 1051 "Strong crypto already enabled!\n"); 1052#endif 1053 goto report; 1054 } 1055 1056 if (encl != 0 && encl != HIFN_PUSTAT_ENA_0) { 1057#ifdef HIFN_DEBUG 1058 if (hifn_debug) 1059 device_printf(sc->sc_dev, 1060 "Unknown encryption level 0x%x\n", encl); 1061#endif 1062 return 1; 1063 } 1064 1065 WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_UNLOCK | 1066 HIFN_DMACNFG_MSTRESET | HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE); 1067 DELAY(1000); 1068 addr = READ_REG_1(sc, HIFN_UNLOCK_SECRET1); 1069 DELAY(1000); 1070 WRITE_REG_1(sc, HIFN_UNLOCK_SECRET2, 0); 1071 DELAY(1000); 1072 1073 for (i = 0; i <= 12; i++) { 1074 addr = hifn_next_signature(addr, offtbl[i] + 0x101); 1075 WRITE_REG_1(sc, HIFN_UNLOCK_SECRET2, addr); 1076 1077 DELAY(1000); 1078 } 1079 1080 WRITE_REG_0(sc, HIFN_0_PUCNFG, ramcfg | HIFN_PUCNFG_CHIPID); 1081 encl = READ_REG_0(sc, HIFN_0_PUSTAT) & HIFN_PUSTAT_CHIPENA; 1082 1083#ifdef HIFN_DEBUG 1084 if (hifn_debug) { 1085 if (encl != HIFN_PUSTAT_ENA_1 && encl != HIFN_PUSTAT_ENA_2) 1086 device_printf(sc->sc_dev, "Engine is permanently " 1087 "locked until next system reset!\n"); 1088 else 1089 device_printf(sc->sc_dev, "Engine enabled " 1090 "successfully!\n"); 1091 } 1092#endif 1093 1094report: 1095 WRITE_REG_0(sc, HIFN_0_PUCNFG, ramcfg); 1096 WRITE_REG_1(sc, HIFN_1_DMA_CNFG, dmacfg); 1097 1098 switch (encl) { 1099 case HIFN_PUSTAT_ENA_1: 1100 case HIFN_PUSTAT_ENA_2: 1101 break; 1102 case HIFN_PUSTAT_ENA_0: 1103 default: 1104 device_printf(sc->sc_dev, "disabled"); 1105 break; 1106 } 1107 1108 return 0; 1109} 1110 1111/* 1112 * Give initial values to the registers listed in the "Register Space" 1113 * section of the HIFN Software Development reference manual. 1114 */ 1115static void 1116hifn_init_pci_registers(struct hifn_softc *sc) 1117{ 1118 /* write fixed values needed by the Initialization registers */ 1119 WRITE_REG_0(sc, HIFN_0_PUCTRL, HIFN_PUCTRL_DMAENA); 1120 WRITE_REG_0(sc, HIFN_0_FIFOCNFG, HIFN_FIFOCNFG_THRESHOLD); 1121 WRITE_REG_0(sc, HIFN_0_PUIER, HIFN_PUIER_DSTOVER); 1122 1123 /* write all 4 ring address registers */ 1124 WRITE_REG_1(sc, HIFN_1_DMA_CRAR, sc->sc_dma_physaddr + 1125 offsetof(struct hifn_dma, cmdr[0])); 1126 WRITE_REG_1(sc, HIFN_1_DMA_SRAR, sc->sc_dma_physaddr + 1127 offsetof(struct hifn_dma, srcr[0])); 1128 WRITE_REG_1(sc, HIFN_1_DMA_DRAR, sc->sc_dma_physaddr + 1129 offsetof(struct hifn_dma, dstr[0])); 1130 WRITE_REG_1(sc, HIFN_1_DMA_RRAR, sc->sc_dma_physaddr + 1131 offsetof(struct hifn_dma, resr[0])); 1132 1133 DELAY(2000); 1134 1135 /* write status register */ 1136 WRITE_REG_1(sc, HIFN_1_DMA_CSR, 1137 HIFN_DMACSR_D_CTRL_DIS | HIFN_DMACSR_R_CTRL_DIS | 1138 HIFN_DMACSR_S_CTRL_DIS | HIFN_DMACSR_C_CTRL_DIS | 1139 HIFN_DMACSR_D_ABORT | HIFN_DMACSR_D_DONE | HIFN_DMACSR_D_LAST | 1140 HIFN_DMACSR_D_WAIT | HIFN_DMACSR_D_OVER | 1141 HIFN_DMACSR_R_ABORT | HIFN_DMACSR_R_DONE | HIFN_DMACSR_R_LAST | 1142 HIFN_DMACSR_R_WAIT | HIFN_DMACSR_R_OVER | 1143 HIFN_DMACSR_S_ABORT | HIFN_DMACSR_S_DONE | HIFN_DMACSR_S_LAST | 1144 HIFN_DMACSR_S_WAIT | 1145 HIFN_DMACSR_C_ABORT | HIFN_DMACSR_C_DONE | HIFN_DMACSR_C_LAST | 1146 HIFN_DMACSR_C_WAIT | 1147 HIFN_DMACSR_ENGINE | 1148 ((sc->sc_flags & HIFN_HAS_PUBLIC) ? 1149 HIFN_DMACSR_PUBDONE : 0) | 1150 ((sc->sc_flags & HIFN_IS_7811) ? 1151 HIFN_DMACSR_ILLW | HIFN_DMACSR_ILLR : 0)); 1152 1153 sc->sc_d_busy = sc->sc_r_busy = sc->sc_s_busy = sc->sc_c_busy = 0; 1154 sc->sc_dmaier |= HIFN_DMAIER_R_DONE | HIFN_DMAIER_C_ABORT | 1155 HIFN_DMAIER_D_OVER | HIFN_DMAIER_R_OVER | 1156 HIFN_DMAIER_S_ABORT | HIFN_DMAIER_D_ABORT | HIFN_DMAIER_R_ABORT | 1157 ((sc->sc_flags & HIFN_IS_7811) ? 1158 HIFN_DMAIER_ILLW | HIFN_DMAIER_ILLR : 0); 1159 sc->sc_dmaier &= ~HIFN_DMAIER_C_WAIT; 1160 WRITE_REG_1(sc, HIFN_1_DMA_IER, sc->sc_dmaier); 1161 1162 1163 if (sc->sc_flags & HIFN_IS_7956) { 1164 u_int32_t pll; 1165 1166 WRITE_REG_0(sc, HIFN_0_PUCNFG, HIFN_PUCNFG_COMPSING | 1167 HIFN_PUCNFG_TCALLPHASES | 1168 HIFN_PUCNFG_TCDRVTOTEM | HIFN_PUCNFG_BUS32); 1169 1170 /* turn off the clocks and insure bypass is set */ 1171 pll = READ_REG_1(sc, HIFN_1_PLL); 1172 pll = (pll &~ (HIFN_PLL_PK_CLK_SEL | HIFN_PLL_PE_CLK_SEL)) 1173 | HIFN_PLL_BP; 1174 WRITE_REG_1(sc, HIFN_1_PLL, pll); 1175 DELAY(10*1000); /* 10ms */ 1176 /* change configuration */ 1177 pll = (pll &~ HIFN_PLL_CONFIG) | sc->sc_pllconfig; 1178 WRITE_REG_1(sc, HIFN_1_PLL, pll); 1179 DELAY(10*1000); /* 10ms */ 1180 /* disable bypass */ 1181 pll &= ~HIFN_PLL_BP; 1182 WRITE_REG_1(sc, HIFN_1_PLL, pll); 1183 /* enable clocks with new configuration */ 1184 pll |= HIFN_PLL_PK_CLK_SEL | HIFN_PLL_PE_CLK_SEL; 1185 WRITE_REG_1(sc, HIFN_1_PLL, pll); 1186 } else { 1187 WRITE_REG_0(sc, HIFN_0_PUCNFG, HIFN_PUCNFG_COMPSING | 1188 HIFN_PUCNFG_DRFR_128 | HIFN_PUCNFG_TCALLPHASES | 1189 HIFN_PUCNFG_TCDRVTOTEM | HIFN_PUCNFG_BUS32 | 1190 (sc->sc_drammodel ? HIFN_PUCNFG_DRAM : HIFN_PUCNFG_SRAM)); 1191 } 1192 1193 WRITE_REG_0(sc, HIFN_0_PUISR, HIFN_PUISR_DSTOVER); 1194 WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET | 1195 HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE | HIFN_DMACNFG_LAST | 1196 ((HIFN_POLL_FREQUENCY << 16 ) & HIFN_DMACNFG_POLLFREQ) | 1197 ((HIFN_POLL_SCALAR << 8) & HIFN_DMACNFG_POLLINVAL)); 1198} 1199 1200/* 1201 * The maximum number of sessions supported by the card 1202 * is dependent on the amount of context ram, which 1203 * encryption algorithms are enabled, and how compression 1204 * is configured. This should be configured before this 1205 * routine is called. 1206 */ 1207static void 1208hifn_sessions(struct hifn_softc *sc) 1209{ 1210 u_int32_t pucnfg; 1211 int ctxsize; 1212 1213 pucnfg = READ_REG_0(sc, HIFN_0_PUCNFG); 1214 1215 if (pucnfg & HIFN_PUCNFG_COMPSING) { 1216 if (pucnfg & HIFN_PUCNFG_ENCCNFG) 1217 ctxsize = 128; 1218 else 1219 ctxsize = 512; 1220 /* 1221 * 7955/7956 has internal context memory of 32K 1222 */ 1223 if (sc->sc_flags & HIFN_IS_7956) 1224 sc->sc_maxses = 32768 / ctxsize; 1225 else 1226 sc->sc_maxses = 1 + 1227 ((sc->sc_ramsize - 32768) / ctxsize); 1228 } else 1229 sc->sc_maxses = sc->sc_ramsize / 16384; 1230 1231 if (sc->sc_maxses > 2048) 1232 sc->sc_maxses = 2048; 1233} 1234 1235/* 1236 * Determine ram type (sram or dram). Board should be just out of a reset 1237 * state when this is called. 1238 */ 1239static int 1240hifn_ramtype(struct hifn_softc *sc) 1241{ 1242 u_int8_t data[8], dataexpect[8]; 1243 int i; 1244 1245 for (i = 0; i < sizeof(data); i++) 1246 data[i] = dataexpect[i] = 0x55; 1247 if (hifn_writeramaddr(sc, 0, data)) 1248 return (-1); 1249 if (hifn_readramaddr(sc, 0, data)) 1250 return (-1); 1251 if (bcmp(data, dataexpect, sizeof(data)) != 0) { 1252 sc->sc_drammodel = 1; 1253 return (0); 1254 } 1255 1256 for (i = 0; i < sizeof(data); i++) 1257 data[i] = dataexpect[i] = 0xaa; 1258 if (hifn_writeramaddr(sc, 0, data)) 1259 return (-1); 1260 if (hifn_readramaddr(sc, 0, data)) 1261 return (-1); 1262 if (bcmp(data, dataexpect, sizeof(data)) != 0) { 1263 sc->sc_drammodel = 1; 1264 return (0); 1265 } 1266 1267 return (0); 1268} 1269 1270#define HIFN_SRAM_MAX (32 << 20) 1271#define HIFN_SRAM_STEP_SIZE 16384 1272#define HIFN_SRAM_GRANULARITY (HIFN_SRAM_MAX / HIFN_SRAM_STEP_SIZE) 1273 1274static int 1275hifn_sramsize(struct hifn_softc *sc) 1276{ 1277 u_int32_t a; 1278 u_int8_t data[8]; 1279 u_int8_t dataexpect[sizeof(data)]; 1280 int32_t i; 1281 1282 for (i = 0; i < sizeof(data); i++) 1283 data[i] = dataexpect[i] = i ^ 0x5a; 1284 1285 for (i = HIFN_SRAM_GRANULARITY - 1; i >= 0; i--) { 1286 a = i * HIFN_SRAM_STEP_SIZE; 1287 bcopy(&i, data, sizeof(i)); 1288 hifn_writeramaddr(sc, a, data); 1289 } 1290 1291 for (i = 0; i < HIFN_SRAM_GRANULARITY; i++) { 1292 a = i * HIFN_SRAM_STEP_SIZE; 1293 bcopy(&i, dataexpect, sizeof(i)); 1294 if (hifn_readramaddr(sc, a, data) < 0) 1295 return (0); 1296 if (bcmp(data, dataexpect, sizeof(data)) != 0) 1297 return (0); 1298 sc->sc_ramsize = a + HIFN_SRAM_STEP_SIZE; 1299 } 1300 1301 return (0); 1302} 1303 1304/* 1305 * XXX For dram boards, one should really try all of the 1306 * HIFN_PUCNFG_DSZ_*'s. This just assumes that PUCNFG 1307 * is already set up correctly. 1308 */ 1309static int 1310hifn_dramsize(struct hifn_softc *sc) 1311{ 1312 u_int32_t cnfg; 1313 1314 if (sc->sc_flags & HIFN_IS_7956) { 1315 /* 1316 * 7955/7956 have a fixed internal ram of only 32K. 1317 */ 1318 sc->sc_ramsize = 32768; 1319 } else { 1320 cnfg = READ_REG_0(sc, HIFN_0_PUCNFG) & 1321 HIFN_PUCNFG_DRAMMASK; 1322 sc->sc_ramsize = 1 << ((cnfg >> 13) + 18); 1323 } 1324 return (0); 1325} 1326 1327static void 1328hifn_alloc_slot(struct hifn_softc *sc, int *cmdp, int *srcp, int *dstp, int *resp) 1329{ 1330 struct hifn_dma *dma = sc->sc_dma; 1331 1332 if (dma->cmdi == HIFN_D_CMD_RSIZE) { 1333 dma->cmdi = 0; 1334 dma->cmdr[HIFN_D_CMD_RSIZE].l = htole32(HIFN_D_VALID | 1335 HIFN_D_JUMP | HIFN_D_MASKDONEIRQ); 1336 HIFN_CMDR_SYNC(sc, HIFN_D_CMD_RSIZE, 1337 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1338 } 1339 *cmdp = dma->cmdi++; 1340 dma->cmdk = dma->cmdi; 1341 1342 if (dma->srci == HIFN_D_SRC_RSIZE) { 1343 dma->srci = 0; 1344 dma->srcr[HIFN_D_SRC_RSIZE].l = htole32(HIFN_D_VALID | 1345 HIFN_D_JUMP | HIFN_D_MASKDONEIRQ); 1346 HIFN_SRCR_SYNC(sc, HIFN_D_SRC_RSIZE, 1347 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1348 } 1349 *srcp = dma->srci++; 1350 dma->srck = dma->srci; 1351 1352 if (dma->dsti == HIFN_D_DST_RSIZE) { 1353 dma->dsti = 0; 1354 dma->dstr[HIFN_D_DST_RSIZE].l = htole32(HIFN_D_VALID | 1355 HIFN_D_JUMP | HIFN_D_MASKDONEIRQ); 1356 HIFN_DSTR_SYNC(sc, HIFN_D_DST_RSIZE, 1357 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1358 } 1359 *dstp = dma->dsti++; 1360 dma->dstk = dma->dsti; 1361 1362 if (dma->resi == HIFN_D_RES_RSIZE) { 1363 dma->resi = 0; 1364 dma->resr[HIFN_D_RES_RSIZE].l = htole32(HIFN_D_VALID | 1365 HIFN_D_JUMP | HIFN_D_MASKDONEIRQ); 1366 HIFN_RESR_SYNC(sc, HIFN_D_RES_RSIZE, 1367 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1368 } 1369 *resp = dma->resi++; 1370 dma->resk = dma->resi; 1371} 1372 1373static int 1374hifn_writeramaddr(struct hifn_softc *sc, int addr, u_int8_t *data) 1375{ 1376 struct hifn_dma *dma = sc->sc_dma; 1377 hifn_base_command_t wc; 1378 const u_int32_t masks = HIFN_D_VALID | HIFN_D_LAST | HIFN_D_MASKDONEIRQ; 1379 int r, cmdi, resi, srci, dsti; 1380 1381 wc.masks = htole16(3 << 13); 1382 wc.session_num = htole16(addr >> 14); 1383 wc.total_source_count = htole16(8); 1384 wc.total_dest_count = htole16(addr & 0x3fff); 1385 1386 hifn_alloc_slot(sc, &cmdi, &srci, &dsti, &resi); 1387 1388 WRITE_REG_1(sc, HIFN_1_DMA_CSR, 1389 HIFN_DMACSR_C_CTRL_ENA | HIFN_DMACSR_S_CTRL_ENA | 1390 HIFN_DMACSR_D_CTRL_ENA | HIFN_DMACSR_R_CTRL_ENA); 1391 1392 /* build write command */ 1393 bzero(dma->command_bufs[cmdi], HIFN_MAX_COMMAND); 1394 *(hifn_base_command_t *)dma->command_bufs[cmdi] = wc; 1395 bcopy(data, &dma->test_src, sizeof(dma->test_src)); 1396 1397 dma->srcr[srci].p = htole32(sc->sc_dma_physaddr 1398 + offsetof(struct hifn_dma, test_src)); 1399 dma->dstr[dsti].p = htole32(sc->sc_dma_physaddr 1400 + offsetof(struct hifn_dma, test_dst)); 1401 1402 dma->cmdr[cmdi].l = htole32(16 | masks); 1403 dma->srcr[srci].l = htole32(8 | masks); 1404 dma->dstr[dsti].l = htole32(4 | masks); 1405 dma->resr[resi].l = htole32(4 | masks); 1406 1407 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 1408 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1409 1410 for (r = 10000; r >= 0; r--) { 1411 DELAY(10); 1412 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 1413 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1414 if ((dma->resr[resi].l & htole32(HIFN_D_VALID)) == 0) 1415 break; 1416 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 1417 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1418 } 1419 if (r == 0) { 1420 device_printf(sc->sc_dev, "writeramaddr -- " 1421 "result[%d](addr %d) still valid\n", resi, addr); 1422 r = -1; 1423 return (-1); 1424 } else 1425 r = 0; 1426 1427 WRITE_REG_1(sc, HIFN_1_DMA_CSR, 1428 HIFN_DMACSR_C_CTRL_DIS | HIFN_DMACSR_S_CTRL_DIS | 1429 HIFN_DMACSR_D_CTRL_DIS | HIFN_DMACSR_R_CTRL_DIS); 1430 1431 return (r); 1432} 1433 1434static int 1435hifn_readramaddr(struct hifn_softc *sc, int addr, u_int8_t *data) 1436{ 1437 struct hifn_dma *dma = sc->sc_dma; 1438 hifn_base_command_t rc; 1439 const u_int32_t masks = HIFN_D_VALID | HIFN_D_LAST | HIFN_D_MASKDONEIRQ; 1440 int r, cmdi, srci, dsti, resi; 1441 1442 rc.masks = htole16(2 << 13); 1443 rc.session_num = htole16(addr >> 14); 1444 rc.total_source_count = htole16(addr & 0x3fff); 1445 rc.total_dest_count = htole16(8); 1446 1447 hifn_alloc_slot(sc, &cmdi, &srci, &dsti, &resi); 1448 1449 WRITE_REG_1(sc, HIFN_1_DMA_CSR, 1450 HIFN_DMACSR_C_CTRL_ENA | HIFN_DMACSR_S_CTRL_ENA | 1451 HIFN_DMACSR_D_CTRL_ENA | HIFN_DMACSR_R_CTRL_ENA); 1452 1453 bzero(dma->command_bufs[cmdi], HIFN_MAX_COMMAND); 1454 *(hifn_base_command_t *)dma->command_bufs[cmdi] = rc; 1455 1456 dma->srcr[srci].p = htole32(sc->sc_dma_physaddr + 1457 offsetof(struct hifn_dma, test_src)); 1458 dma->test_src = 0; 1459 dma->dstr[dsti].p = htole32(sc->sc_dma_physaddr + 1460 offsetof(struct hifn_dma, test_dst)); 1461 dma->test_dst = 0; 1462 dma->cmdr[cmdi].l = htole32(8 | masks); 1463 dma->srcr[srci].l = htole32(8 | masks); 1464 dma->dstr[dsti].l = htole32(8 | masks); 1465 dma->resr[resi].l = htole32(HIFN_MAX_RESULT | masks); 1466 1467 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 1468 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1469 1470 for (r = 10000; r >= 0; r--) { 1471 DELAY(10); 1472 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 1473 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1474 if ((dma->resr[resi].l & htole32(HIFN_D_VALID)) == 0) 1475 break; 1476 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 1477 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1478 } 1479 if (r == 0) { 1480 device_printf(sc->sc_dev, "readramaddr -- " 1481 "result[%d](addr %d) still valid\n", resi, addr); 1482 r = -1; 1483 } else { 1484 r = 0; 1485 bcopy(&dma->test_dst, data, sizeof(dma->test_dst)); 1486 } 1487 1488 WRITE_REG_1(sc, HIFN_1_DMA_CSR, 1489 HIFN_DMACSR_C_CTRL_DIS | HIFN_DMACSR_S_CTRL_DIS | 1490 HIFN_DMACSR_D_CTRL_DIS | HIFN_DMACSR_R_CTRL_DIS); 1491 1492 return (r); 1493} 1494 1495/* 1496 * Initialize the descriptor rings. 1497 */ 1498static void 1499hifn_init_dma(struct hifn_softc *sc) 1500{ 1501 struct hifn_dma *dma = sc->sc_dma; 1502 int i; 1503 1504 hifn_set_retry(sc); 1505 1506 /* initialize static pointer values */ 1507 for (i = 0; i < HIFN_D_CMD_RSIZE; i++) 1508 dma->cmdr[i].p = htole32(sc->sc_dma_physaddr + 1509 offsetof(struct hifn_dma, command_bufs[i][0])); 1510 for (i = 0; i < HIFN_D_RES_RSIZE; i++) 1511 dma->resr[i].p = htole32(sc->sc_dma_physaddr + 1512 offsetof(struct hifn_dma, result_bufs[i][0])); 1513 1514 dma->cmdr[HIFN_D_CMD_RSIZE].p = 1515 htole32(sc->sc_dma_physaddr + offsetof(struct hifn_dma, cmdr[0])); 1516 dma->srcr[HIFN_D_SRC_RSIZE].p = 1517 htole32(sc->sc_dma_physaddr + offsetof(struct hifn_dma, srcr[0])); 1518 dma->dstr[HIFN_D_DST_RSIZE].p = 1519 htole32(sc->sc_dma_physaddr + offsetof(struct hifn_dma, dstr[0])); 1520 dma->resr[HIFN_D_RES_RSIZE].p = 1521 htole32(sc->sc_dma_physaddr + offsetof(struct hifn_dma, resr[0])); 1522 1523 dma->cmdu = dma->srcu = dma->dstu = dma->resu = 0; 1524 dma->cmdi = dma->srci = dma->dsti = dma->resi = 0; 1525 dma->cmdk = dma->srck = dma->dstk = dma->resk = 0; 1526} 1527 1528/* 1529 * Writes out the raw command buffer space. Returns the 1530 * command buffer size. 1531 */ 1532static u_int 1533hifn_write_command(struct hifn_command *cmd, u_int8_t *buf) 1534{ 1535 u_int8_t *buf_pos; 1536 hifn_base_command_t *base_cmd; 1537 hifn_mac_command_t *mac_cmd; 1538 hifn_crypt_command_t *cry_cmd; 1539 int using_mac, using_crypt, len, ivlen; 1540 u_int32_t dlen, slen; 1541 1542 buf_pos = buf; 1543 using_mac = cmd->base_masks & HIFN_BASE_CMD_MAC; 1544 using_crypt = cmd->base_masks & HIFN_BASE_CMD_CRYPT; 1545 1546 base_cmd = (hifn_base_command_t *)buf_pos; 1547 base_cmd->masks = htole16(cmd->base_masks); 1548 slen = cmd->src_mapsize; 1549 if (cmd->sloplen) 1550 dlen = cmd->dst_mapsize - cmd->sloplen + sizeof(u_int32_t); 1551 else 1552 dlen = cmd->dst_mapsize; 1553 base_cmd->total_source_count = htole16(slen & HIFN_BASE_CMD_LENMASK_LO); 1554 base_cmd->total_dest_count = htole16(dlen & HIFN_BASE_CMD_LENMASK_LO); 1555 dlen >>= 16; 1556 slen >>= 16; 1557 base_cmd->session_num = htole16( 1558 ((slen << HIFN_BASE_CMD_SRCLEN_S) & HIFN_BASE_CMD_SRCLEN_M) | 1559 ((dlen << HIFN_BASE_CMD_DSTLEN_S) & HIFN_BASE_CMD_DSTLEN_M)); 1560 buf_pos += sizeof(hifn_base_command_t); 1561 1562 if (using_mac) { 1563 mac_cmd = (hifn_mac_command_t *)buf_pos; 1564 dlen = cmd->maccrd->crd_len; 1565 mac_cmd->source_count = htole16(dlen & 0xffff); 1566 dlen >>= 16; 1567 mac_cmd->masks = htole16(cmd->mac_masks | 1568 ((dlen << HIFN_MAC_CMD_SRCLEN_S) & HIFN_MAC_CMD_SRCLEN_M)); 1569 mac_cmd->header_skip = htole16(cmd->maccrd->crd_skip); 1570 mac_cmd->reserved = 0; 1571 buf_pos += sizeof(hifn_mac_command_t); 1572 } 1573 1574 if (using_crypt) { 1575 cry_cmd = (hifn_crypt_command_t *)buf_pos; 1576 dlen = cmd->enccrd->crd_len; 1577 cry_cmd->source_count = htole16(dlen & 0xffff); 1578 dlen >>= 16; 1579 cry_cmd->masks = htole16(cmd->cry_masks | 1580 ((dlen << HIFN_CRYPT_CMD_SRCLEN_S) & HIFN_CRYPT_CMD_SRCLEN_M)); 1581 cry_cmd->header_skip = htole16(cmd->enccrd->crd_skip); 1582 cry_cmd->reserved = 0; 1583 buf_pos += sizeof(hifn_crypt_command_t); 1584 } 1585 1586 if (using_mac && cmd->mac_masks & HIFN_MAC_CMD_NEW_KEY) { 1587 bcopy(cmd->mac, buf_pos, HIFN_MAC_KEY_LENGTH); 1588 buf_pos += HIFN_MAC_KEY_LENGTH; 1589 } 1590 1591 if (using_crypt && cmd->cry_masks & HIFN_CRYPT_CMD_NEW_KEY) { 1592 switch (cmd->cry_masks & HIFN_CRYPT_CMD_ALG_MASK) { 1593 case HIFN_CRYPT_CMD_ALG_3DES: 1594 bcopy(cmd->ck, buf_pos, HIFN_3DES_KEY_LENGTH); 1595 buf_pos += HIFN_3DES_KEY_LENGTH; 1596 break; 1597 case HIFN_CRYPT_CMD_ALG_DES: 1598 bcopy(cmd->ck, buf_pos, HIFN_DES_KEY_LENGTH); 1599 buf_pos += HIFN_DES_KEY_LENGTH; 1600 break; 1601 case HIFN_CRYPT_CMD_ALG_RC4: 1602 len = 256; 1603 do { 1604 int clen; 1605 1606 clen = MIN(cmd->cklen, len); 1607 bcopy(cmd->ck, buf_pos, clen); 1608 len -= clen; 1609 buf_pos += clen; 1610 } while (len > 0); 1611 bzero(buf_pos, 4); 1612 buf_pos += 4; 1613 break; 1614 case HIFN_CRYPT_CMD_ALG_AES: 1615 /* 1616 * AES keys are variable 128, 192 and 1617 * 256 bits (16, 24 and 32 bytes). 1618 */ 1619 bcopy(cmd->ck, buf_pos, cmd->cklen); 1620 buf_pos += cmd->cklen; 1621 break; 1622 } 1623 } 1624 1625 if (using_crypt && cmd->cry_masks & HIFN_CRYPT_CMD_NEW_IV) { 1626 switch (cmd->cry_masks & HIFN_CRYPT_CMD_ALG_MASK) { 1627 case HIFN_CRYPT_CMD_ALG_AES: 1628 ivlen = HIFN_AES_IV_LENGTH; 1629 break; 1630 default: 1631 ivlen = HIFN_IV_LENGTH; 1632 break; 1633 } 1634 bcopy(cmd->iv, buf_pos, ivlen); 1635 buf_pos += ivlen; 1636 } 1637 1638 if ((cmd->base_masks & (HIFN_BASE_CMD_MAC|HIFN_BASE_CMD_CRYPT)) == 0) { 1639 bzero(buf_pos, 8); 1640 buf_pos += 8; 1641 } 1642 1643 return (buf_pos - buf); 1644} 1645 1646static int 1647hifn_dmamap_aligned(struct hifn_operand *op) 1648{ 1649 int i; 1650 1651 for (i = 0; i < op->nsegs; i++) { 1652 if (op->segs[i].ds_addr & 3) 1653 return (0); 1654 if ((i != (op->nsegs - 1)) && (op->segs[i].ds_len & 3)) 1655 return (0); 1656 } 1657 return (1); 1658} 1659 1660static int 1661hifn_dmamap_load_dst(struct hifn_softc *sc, struct hifn_command *cmd) 1662{ 1663 struct hifn_dma *dma = sc->sc_dma; 1664 struct hifn_operand *dst = &cmd->dst; 1665 u_int32_t p, l; 1666 int idx, used = 0, i; 1667 1668 idx = dma->dsti; 1669 for (i = 0; i < dst->nsegs - 1; i++) { 1670 dma->dstr[idx].p = htole32(dst->segs[i].ds_addr); 1671 dma->dstr[idx].l = htole32(HIFN_D_VALID | 1672 HIFN_D_MASKDONEIRQ | dst->segs[i].ds_len); 1673 HIFN_DSTR_SYNC(sc, idx, 1674 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1675 used++; 1676 1677 if (++idx == HIFN_D_DST_RSIZE) { 1678 dma->dstr[idx].l = htole32(HIFN_D_VALID | 1679 HIFN_D_JUMP | HIFN_D_MASKDONEIRQ); 1680 HIFN_DSTR_SYNC(sc, idx, 1681 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1682 idx = 0; 1683 } 1684 } 1685 1686 if (cmd->sloplen == 0) { 1687 p = dst->segs[i].ds_addr; 1688 l = HIFN_D_VALID | HIFN_D_MASKDONEIRQ | HIFN_D_LAST | 1689 dst->segs[i].ds_len; 1690 } else { 1691 p = sc->sc_dma_physaddr + 1692 offsetof(struct hifn_dma, slop[cmd->slopidx]); 1693 l = HIFN_D_VALID | HIFN_D_MASKDONEIRQ | HIFN_D_LAST | 1694 sizeof(u_int32_t); 1695 1696 if ((dst->segs[i].ds_len - cmd->sloplen) != 0) { 1697 dma->dstr[idx].p = htole32(dst->segs[i].ds_addr); 1698 dma->dstr[idx].l = htole32(HIFN_D_VALID | 1699 HIFN_D_MASKDONEIRQ | 1700 (dst->segs[i].ds_len - cmd->sloplen)); 1701 HIFN_DSTR_SYNC(sc, idx, 1702 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1703 used++; 1704 1705 if (++idx == HIFN_D_DST_RSIZE) { 1706 dma->dstr[idx].l = htole32(HIFN_D_VALID | 1707 HIFN_D_JUMP | HIFN_D_MASKDONEIRQ); 1708 HIFN_DSTR_SYNC(sc, idx, 1709 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1710 idx = 0; 1711 } 1712 } 1713 } 1714 dma->dstr[idx].p = htole32(p); 1715 dma->dstr[idx].l = htole32(l); 1716 HIFN_DSTR_SYNC(sc, idx, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1717 used++; 1718 1719 if (++idx == HIFN_D_DST_RSIZE) { 1720 dma->dstr[idx].l = htole32(HIFN_D_VALID | HIFN_D_JUMP | 1721 HIFN_D_MASKDONEIRQ); 1722 HIFN_DSTR_SYNC(sc, idx, 1723 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1724 idx = 0; 1725 } 1726 1727 dma->dsti = idx; 1728 dma->dstu += used; 1729 return (idx); 1730} 1731 1732static int 1733hifn_dmamap_load_src(struct hifn_softc *sc, struct hifn_command *cmd) 1734{ 1735 struct hifn_dma *dma = sc->sc_dma; 1736 struct hifn_operand *src = &cmd->src; 1737 int idx, i; 1738 u_int32_t last = 0; 1739 1740 idx = dma->srci; 1741 for (i = 0; i < src->nsegs; i++) { 1742 if (i == src->nsegs - 1) 1743 last = HIFN_D_LAST; 1744 1745 dma->srcr[idx].p = htole32(src->segs[i].ds_addr); 1746 dma->srcr[idx].l = htole32(src->segs[i].ds_len | 1747 HIFN_D_VALID | HIFN_D_MASKDONEIRQ | last); 1748 HIFN_SRCR_SYNC(sc, idx, 1749 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1750 1751 if (++idx == HIFN_D_SRC_RSIZE) { 1752 dma->srcr[idx].l = htole32(HIFN_D_VALID | 1753 HIFN_D_JUMP | HIFN_D_MASKDONEIRQ); 1754 HIFN_SRCR_SYNC(sc, HIFN_D_SRC_RSIZE, 1755 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1756 idx = 0; 1757 } 1758 } 1759 dma->srci = idx; 1760 dma->srcu += src->nsegs; 1761 return (idx); 1762} 1763 1764static void 1765hifn_op_cb(void* arg, bus_dma_segment_t *seg, int nsegs, bus_size_t mapsize, int error) 1766{ 1767 struct hifn_operand *op = arg; 1768 1769 KASSERT(nsegs <= MAX_SCATTER, 1770 ("hifn_op_cb: too many DMA segments (%u > %u) " 1771 "returned when mapping operand", nsegs, MAX_SCATTER)); 1772 op->mapsize = mapsize; 1773 op->nsegs = nsegs; 1774 bcopy(seg, op->segs, nsegs * sizeof (seg[0])); 1775} 1776 1777static int 1778hifn_crypto( 1779 struct hifn_softc *sc, 1780 struct hifn_command *cmd, 1781 struct cryptop *crp, 1782 int hint) 1783{ 1784 struct hifn_dma *dma = sc->sc_dma; 1785 u_int32_t cmdlen; 1786 int cmdi, resi, err = 0; 1787 1788 /* 1789 * need 1 cmd, and 1 res 1790 * 1791 * NB: check this first since it's easy. 1792 */ 1793 HIFN_LOCK(sc); 1794 if ((dma->cmdu + 1) > HIFN_D_CMD_RSIZE || 1795 (dma->resu + 1) > HIFN_D_RES_RSIZE) { 1796#ifdef HIFN_DEBUG 1797 if (hifn_debug) { 1798 device_printf(sc->sc_dev, 1799 "cmd/result exhaustion, cmdu %u resu %u\n", 1800 dma->cmdu, dma->resu); 1801 } 1802#endif 1803 hifnstats.hst_nomem_cr++; 1804 HIFN_UNLOCK(sc); 1805 return (ERESTART); 1806 } 1807 1808 if (bus_dmamap_create(sc->sc_dmat, BUS_DMA_NOWAIT, &cmd->src_map)) { 1809 hifnstats.hst_nomem_map++; 1810 HIFN_UNLOCK(sc); 1811 return (ENOMEM); 1812 } 1813 1814 if (crp->crp_flags & CRYPTO_F_IMBUF) { 1815 if (bus_dmamap_load_mbuf(sc->sc_dmat, cmd->src_map, 1816 cmd->src_m, hifn_op_cb, &cmd->src, BUS_DMA_NOWAIT)) { 1817 hifnstats.hst_nomem_load++; 1818 err = ENOMEM; 1819 goto err_srcmap1; 1820 } 1821 } else if (crp->crp_flags & CRYPTO_F_IOV) { 1822 if (bus_dmamap_load_uio(sc->sc_dmat, cmd->src_map, 1823 cmd->src_io, hifn_op_cb, &cmd->src, BUS_DMA_NOWAIT)) { 1824 hifnstats.hst_nomem_load++; 1825 err = ENOMEM; 1826 goto err_srcmap1; 1827 } 1828 } else { 1829 err = EINVAL; 1830 goto err_srcmap1; 1831 } 1832 1833 if (hifn_dmamap_aligned(&cmd->src)) { 1834 cmd->sloplen = cmd->src_mapsize & 3; 1835 cmd->dst = cmd->src; 1836 } else { 1837 if (crp->crp_flags & CRYPTO_F_IOV) { 1838 err = EINVAL; 1839 goto err_srcmap; 1840 } else if (crp->crp_flags & CRYPTO_F_IMBUF) { 1841 int totlen, len; 1842 struct mbuf *m, *m0, *mlast; 1843 1844 KASSERT(cmd->dst_m == cmd->src_m, 1845 ("hifn_crypto: dst_m initialized improperly")); 1846 hifnstats.hst_unaligned++; 1847 /* 1848 * Source is not aligned on a longword boundary. 1849 * Copy the data to insure alignment. If we fail 1850 * to allocate mbufs or clusters while doing this 1851 * we return ERESTART so the operation is requeued 1852 * at the crypto later, but only if there are 1853 * ops already posted to the hardware; otherwise we 1854 * have no guarantee that we'll be re-entered. 1855 */ 1856 totlen = cmd->src_mapsize; 1857 if (cmd->src_m->m_flags & M_PKTHDR) { 1858 len = MHLEN; 1859 MGETHDR(m0, M_DONTWAIT, MT_DATA); 1860 if (m0 && !m_dup_pkthdr(m0, cmd->src_m, M_DONTWAIT)) { 1861 m_free(m0); 1862 m0 = NULL; 1863 } 1864 } else { 1865 len = MLEN; 1866 MGET(m0, M_DONTWAIT, MT_DATA); 1867 } 1868 if (m0 == NULL) { 1869 hifnstats.hst_nomem_mbuf++; 1870 err = dma->cmdu ? ERESTART : ENOMEM; 1871 goto err_srcmap; 1872 } 1873 if (totlen >= MINCLSIZE) { 1874 MCLGET(m0, M_DONTWAIT); 1875 if ((m0->m_flags & M_EXT) == 0) { 1876 hifnstats.hst_nomem_mcl++; 1877 err = dma->cmdu ? ERESTART : ENOMEM; 1878 m_freem(m0); 1879 goto err_srcmap; 1880 } 1881 len = MCLBYTES; 1882 } 1883 totlen -= len; 1884 m0->m_pkthdr.len = m0->m_len = len; 1885 mlast = m0; 1886 1887 while (totlen > 0) { 1888 MGET(m, M_DONTWAIT, MT_DATA); 1889 if (m == NULL) { 1890 hifnstats.hst_nomem_mbuf++; 1891 err = dma->cmdu ? ERESTART : ENOMEM; 1892 m_freem(m0); 1893 goto err_srcmap; 1894 } 1895 len = MLEN; 1896 if (totlen >= MINCLSIZE) { 1897 MCLGET(m, M_DONTWAIT); 1898 if ((m->m_flags & M_EXT) == 0) { 1899 hifnstats.hst_nomem_mcl++; 1900 err = dma->cmdu ? ERESTART : ENOMEM; 1901 mlast->m_next = m; 1902 m_freem(m0); 1903 goto err_srcmap; 1904 } 1905 len = MCLBYTES; 1906 } 1907 1908 m->m_len = len; 1909 m0->m_pkthdr.len += len; 1910 totlen -= len; 1911 1912 mlast->m_next = m; 1913 mlast = m; 1914 } 1915 cmd->dst_m = m0; 1916 } 1917 } 1918 1919 if (cmd->dst_map == NULL) { 1920 if (bus_dmamap_create(sc->sc_dmat, BUS_DMA_NOWAIT, &cmd->dst_map)) { 1921 hifnstats.hst_nomem_map++; 1922 err = ENOMEM; 1923 goto err_srcmap; 1924 } 1925 if (crp->crp_flags & CRYPTO_F_IMBUF) { 1926 if (bus_dmamap_load_mbuf(sc->sc_dmat, cmd->dst_map, 1927 cmd->dst_m, hifn_op_cb, &cmd->dst, BUS_DMA_NOWAIT)) { 1928 hifnstats.hst_nomem_map++; 1929 err = ENOMEM; 1930 goto err_dstmap1; 1931 } 1932 } else if (crp->crp_flags & CRYPTO_F_IOV) { 1933 if (bus_dmamap_load_uio(sc->sc_dmat, cmd->dst_map, 1934 cmd->dst_io, hifn_op_cb, &cmd->dst, BUS_DMA_NOWAIT)) { 1935 hifnstats.hst_nomem_load++; 1936 err = ENOMEM; 1937 goto err_dstmap1; 1938 } 1939 } 1940 } 1941 1942#ifdef HIFN_DEBUG 1943 if (hifn_debug) { 1944 device_printf(sc->sc_dev, 1945 "Entering cmd: stat %8x ien %8x u %d/%d/%d/%d n %d/%d\n", 1946 READ_REG_1(sc, HIFN_1_DMA_CSR), 1947 READ_REG_1(sc, HIFN_1_DMA_IER), 1948 dma->cmdu, dma->srcu, dma->dstu, dma->resu, 1949 cmd->src_nsegs, cmd->dst_nsegs); 1950 } 1951#endif 1952 1953 if (cmd->src_map == cmd->dst_map) { 1954 bus_dmamap_sync(sc->sc_dmat, cmd->src_map, 1955 BUS_DMASYNC_PREWRITE|BUS_DMASYNC_PREREAD); 1956 } else { 1957 bus_dmamap_sync(sc->sc_dmat, cmd->src_map, 1958 BUS_DMASYNC_PREWRITE); 1959 bus_dmamap_sync(sc->sc_dmat, cmd->dst_map, 1960 BUS_DMASYNC_PREREAD); 1961 } 1962 1963 /* 1964 * need N src, and N dst 1965 */ 1966 if ((dma->srcu + cmd->src_nsegs) > HIFN_D_SRC_RSIZE || 1967 (dma->dstu + cmd->dst_nsegs + 1) > HIFN_D_DST_RSIZE) { 1968#ifdef HIFN_DEBUG 1969 if (hifn_debug) { 1970 device_printf(sc->sc_dev, 1971 "src/dst exhaustion, srcu %u+%u dstu %u+%u\n", 1972 dma->srcu, cmd->src_nsegs, 1973 dma->dstu, cmd->dst_nsegs); 1974 } 1975#endif 1976 hifnstats.hst_nomem_sd++; 1977 err = ERESTART; 1978 goto err_dstmap; 1979 } 1980 1981 if (dma->cmdi == HIFN_D_CMD_RSIZE) { 1982 dma->cmdi = 0; 1983 dma->cmdr[HIFN_D_CMD_RSIZE].l = htole32(HIFN_D_VALID | 1984 HIFN_D_JUMP | HIFN_D_MASKDONEIRQ); 1985 HIFN_CMDR_SYNC(sc, HIFN_D_CMD_RSIZE, 1986 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1987 } 1988 cmdi = dma->cmdi++; 1989 cmdlen = hifn_write_command(cmd, dma->command_bufs[cmdi]); 1990 HIFN_CMD_SYNC(sc, cmdi, BUS_DMASYNC_PREWRITE); 1991 1992 /* .p for command/result already set */ 1993 dma->cmdr[cmdi].l = htole32(cmdlen | HIFN_D_VALID | HIFN_D_LAST | 1994 HIFN_D_MASKDONEIRQ); 1995 HIFN_CMDR_SYNC(sc, cmdi, 1996 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1997 dma->cmdu++; 1998 if (sc->sc_c_busy == 0) { 1999 WRITE_REG_1(sc, HIFN_1_DMA_CSR, HIFN_DMACSR_C_CTRL_ENA); 2000 sc->sc_c_busy = 1; 2001 } 2002 2003 /* 2004 * We don't worry about missing an interrupt (which a "command wait" 2005 * interrupt salvages us from), unless there is more than one command 2006 * in the queue. 2007 */ 2008 if (dma->cmdu > 1) { 2009 sc->sc_dmaier |= HIFN_DMAIER_C_WAIT; 2010 WRITE_REG_1(sc, HIFN_1_DMA_IER, sc->sc_dmaier); 2011 } 2012 2013 hifnstats.hst_ipackets++; 2014 hifnstats.hst_ibytes += cmd->src_mapsize; 2015 2016 hifn_dmamap_load_src(sc, cmd); 2017 if (sc->sc_s_busy == 0) { 2018 WRITE_REG_1(sc, HIFN_1_DMA_CSR, HIFN_DMACSR_S_CTRL_ENA); 2019 sc->sc_s_busy = 1; 2020 } 2021 2022 /* 2023 * Unlike other descriptors, we don't mask done interrupt from 2024 * result descriptor. 2025 */ 2026#ifdef HIFN_DEBUG 2027 if (hifn_debug) 2028 printf("load res\n"); 2029#endif 2030 if (dma->resi == HIFN_D_RES_RSIZE) { 2031 dma->resi = 0; 2032 dma->resr[HIFN_D_RES_RSIZE].l = htole32(HIFN_D_VALID | 2033 HIFN_D_JUMP | HIFN_D_MASKDONEIRQ); 2034 HIFN_RESR_SYNC(sc, HIFN_D_RES_RSIZE, 2035 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2036 } 2037 resi = dma->resi++; 2038 KASSERT(dma->hifn_commands[resi] == NULL, 2039 ("hifn_crypto: command slot %u busy", resi)); 2040 dma->hifn_commands[resi] = cmd; 2041 HIFN_RES_SYNC(sc, resi, BUS_DMASYNC_PREREAD); 2042 if ((hint & CRYPTO_HINT_MORE) && sc->sc_curbatch < hifn_maxbatch) { 2043 dma->resr[resi].l = htole32(HIFN_MAX_RESULT | 2044 HIFN_D_VALID | HIFN_D_LAST | HIFN_D_MASKDONEIRQ); 2045 sc->sc_curbatch++; 2046 if (sc->sc_curbatch > hifnstats.hst_maxbatch) 2047 hifnstats.hst_maxbatch = sc->sc_curbatch; 2048 hifnstats.hst_totbatch++; 2049 } else { 2050 dma->resr[resi].l = htole32(HIFN_MAX_RESULT | 2051 HIFN_D_VALID | HIFN_D_LAST); 2052 sc->sc_curbatch = 0; 2053 } 2054 HIFN_RESR_SYNC(sc, resi, 2055 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2056 dma->resu++; 2057 if (sc->sc_r_busy == 0) { 2058 WRITE_REG_1(sc, HIFN_1_DMA_CSR, HIFN_DMACSR_R_CTRL_ENA); 2059 sc->sc_r_busy = 1; 2060 } 2061 2062 if (cmd->sloplen) 2063 cmd->slopidx = resi; 2064 2065 hifn_dmamap_load_dst(sc, cmd); 2066 2067 if (sc->sc_d_busy == 0) { 2068 WRITE_REG_1(sc, HIFN_1_DMA_CSR, HIFN_DMACSR_D_CTRL_ENA); 2069 sc->sc_d_busy = 1; 2070 } 2071 2072#ifdef HIFN_DEBUG 2073 if (hifn_debug) { 2074 device_printf(sc->sc_dev, "command: stat %8x ier %8x\n", 2075 READ_REG_1(sc, HIFN_1_DMA_CSR), 2076 READ_REG_1(sc, HIFN_1_DMA_IER)); 2077 } 2078#endif 2079 2080 sc->sc_active = 5; 2081 HIFN_UNLOCK(sc); 2082 KASSERT(err == 0, ("hifn_crypto: success with error %u", err)); 2083 return (err); /* success */ 2084 2085err_dstmap: 2086 if (cmd->src_map != cmd->dst_map) 2087 bus_dmamap_unload(sc->sc_dmat, cmd->dst_map); 2088err_dstmap1: 2089 if (cmd->src_map != cmd->dst_map) 2090 bus_dmamap_destroy(sc->sc_dmat, cmd->dst_map); 2091err_srcmap: 2092 if (crp->crp_flags & CRYPTO_F_IMBUF) { 2093 if (cmd->src_m != cmd->dst_m) 2094 m_freem(cmd->dst_m); 2095 } 2096 bus_dmamap_unload(sc->sc_dmat, cmd->src_map); 2097err_srcmap1: 2098 bus_dmamap_destroy(sc->sc_dmat, cmd->src_map); 2099 HIFN_UNLOCK(sc); 2100 return (err); 2101} 2102 2103static void 2104hifn_tick(void* vsc) 2105{ 2106 struct hifn_softc *sc = vsc; 2107 2108 HIFN_LOCK(sc); 2109 if (sc->sc_active == 0) { 2110 struct hifn_dma *dma = sc->sc_dma; 2111 u_int32_t r = 0; 2112 2113 if (dma->cmdu == 0 && sc->sc_c_busy) { 2114 sc->sc_c_busy = 0; 2115 r |= HIFN_DMACSR_C_CTRL_DIS; 2116 } 2117 if (dma->srcu == 0 && sc->sc_s_busy) { 2118 sc->sc_s_busy = 0; 2119 r |= HIFN_DMACSR_S_CTRL_DIS; 2120 } 2121 if (dma->dstu == 0 && sc->sc_d_busy) { 2122 sc->sc_d_busy = 0; 2123 r |= HIFN_DMACSR_D_CTRL_DIS; 2124 } 2125 if (dma->resu == 0 && sc->sc_r_busy) { 2126 sc->sc_r_busy = 0; 2127 r |= HIFN_DMACSR_R_CTRL_DIS; 2128 } 2129 if (r) 2130 WRITE_REG_1(sc, HIFN_1_DMA_CSR, r); 2131 } else 2132 sc->sc_active--; 2133 HIFN_UNLOCK(sc); 2134 callout_reset(&sc->sc_tickto, hz, hifn_tick, sc); 2135} 2136 2137static void 2138hifn_intr(void *arg) 2139{ 2140 struct hifn_softc *sc = arg; 2141 struct hifn_dma *dma; 2142 u_int32_t dmacsr, restart; 2143 int i, u; 2144 2145 dmacsr = READ_REG_1(sc, HIFN_1_DMA_CSR); 2146 2147 /* Nothing in the DMA unit interrupted */ 2148 if ((dmacsr & sc->sc_dmaier) == 0) 2149 return; 2150 2151 HIFN_LOCK(sc); 2152 2153 dma = sc->sc_dma; 2154 2155#ifdef HIFN_DEBUG 2156 if (hifn_debug) { 2157 device_printf(sc->sc_dev, 2158 "irq: stat %08x ien %08x damier %08x i %d/%d/%d/%d k %d/%d/%d/%d u %d/%d/%d/%d\n", 2159 dmacsr, READ_REG_1(sc, HIFN_1_DMA_IER), sc->sc_dmaier, 2160 dma->cmdi, dma->srci, dma->dsti, dma->resi, 2161 dma->cmdk, dma->srck, dma->dstk, dma->resk, 2162 dma->cmdu, dma->srcu, dma->dstu, dma->resu); 2163 } 2164#endif 2165 2166 WRITE_REG_1(sc, HIFN_1_DMA_CSR, dmacsr & sc->sc_dmaier); 2167 2168 if ((sc->sc_flags & HIFN_HAS_PUBLIC) && 2169 (dmacsr & HIFN_DMACSR_PUBDONE)) 2170 WRITE_REG_1(sc, HIFN_1_PUB_STATUS, 2171 READ_REG_1(sc, HIFN_1_PUB_STATUS) | HIFN_PUBSTS_DONE); 2172 2173 restart = dmacsr & (HIFN_DMACSR_D_OVER | HIFN_DMACSR_R_OVER); 2174 if (restart) 2175 device_printf(sc->sc_dev, "overrun %x\n", dmacsr); 2176 2177 if (sc->sc_flags & HIFN_IS_7811) { 2178 if (dmacsr & HIFN_DMACSR_ILLR) 2179 device_printf(sc->sc_dev, "illegal read\n"); 2180 if (dmacsr & HIFN_DMACSR_ILLW) 2181 device_printf(sc->sc_dev, "illegal write\n"); 2182 } 2183 2184 restart = dmacsr & (HIFN_DMACSR_C_ABORT | HIFN_DMACSR_S_ABORT | 2185 HIFN_DMACSR_D_ABORT | HIFN_DMACSR_R_ABORT); 2186 if (restart) { 2187 device_printf(sc->sc_dev, "abort, resetting.\n"); 2188 hifnstats.hst_abort++; 2189 hifn_abort(sc); 2190 HIFN_UNLOCK(sc); 2191 return; 2192 } 2193 2194 if ((dmacsr & HIFN_DMACSR_C_WAIT) && (dma->cmdu == 0)) { 2195 /* 2196 * If no slots to process and we receive a "waiting on 2197 * command" interrupt, we disable the "waiting on command" 2198 * (by clearing it). 2199 */ 2200 sc->sc_dmaier &= ~HIFN_DMAIER_C_WAIT; 2201 WRITE_REG_1(sc, HIFN_1_DMA_IER, sc->sc_dmaier); 2202 } 2203 2204 /* clear the rings */ 2205 i = dma->resk; u = dma->resu; 2206 while (u != 0) { 2207 HIFN_RESR_SYNC(sc, i, 2208 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 2209 if (dma->resr[i].l & htole32(HIFN_D_VALID)) { 2210 HIFN_RESR_SYNC(sc, i, 2211 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2212 break; 2213 } 2214 2215 if (i != HIFN_D_RES_RSIZE) { 2216 struct hifn_command *cmd; 2217 u_int8_t *macbuf = NULL; 2218 2219 HIFN_RES_SYNC(sc, i, BUS_DMASYNC_POSTREAD); 2220 cmd = dma->hifn_commands[i]; 2221 KASSERT(cmd != NULL, 2222 ("hifn_intr: null command slot %u", i)); 2223 dma->hifn_commands[i] = NULL; 2224 2225 if (cmd->base_masks & HIFN_BASE_CMD_MAC) { 2226 macbuf = dma->result_bufs[i]; 2227 macbuf += 12; 2228 } 2229 2230 hifn_callback(sc, cmd, macbuf); 2231 hifnstats.hst_opackets++; 2232 u--; 2233 } 2234 2235 if (++i == (HIFN_D_RES_RSIZE + 1)) 2236 i = 0; 2237 } 2238 dma->resk = i; dma->resu = u; 2239 2240 i = dma->srck; u = dma->srcu; 2241 while (u != 0) { 2242 if (i == HIFN_D_SRC_RSIZE) 2243 i = 0; 2244 HIFN_SRCR_SYNC(sc, i, 2245 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 2246 if (dma->srcr[i].l & htole32(HIFN_D_VALID)) { 2247 HIFN_SRCR_SYNC(sc, i, 2248 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2249 break; 2250 } 2251 i++, u--; 2252 } 2253 dma->srck = i; dma->srcu = u; 2254 2255 i = dma->cmdk; u = dma->cmdu; 2256 while (u != 0) { 2257 HIFN_CMDR_SYNC(sc, i, 2258 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 2259 if (dma->cmdr[i].l & htole32(HIFN_D_VALID)) { 2260 HIFN_CMDR_SYNC(sc, i, 2261 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2262 break; 2263 } 2264 if (i != HIFN_D_CMD_RSIZE) { 2265 u--; 2266 HIFN_CMD_SYNC(sc, i, BUS_DMASYNC_POSTWRITE); 2267 } 2268 if (++i == (HIFN_D_CMD_RSIZE + 1)) 2269 i = 0; 2270 } 2271 dma->cmdk = i; dma->cmdu = u; 2272 2273 HIFN_UNLOCK(sc); 2274 2275 if (sc->sc_needwakeup) { /* XXX check high watermark */ 2276 int wakeup = sc->sc_needwakeup & (CRYPTO_SYMQ|CRYPTO_ASYMQ); 2277#ifdef HIFN_DEBUG 2278 if (hifn_debug) 2279 device_printf(sc->sc_dev, 2280 "wakeup crypto (%x) u %d/%d/%d/%d\n", 2281 sc->sc_needwakeup, 2282 dma->cmdu, dma->srcu, dma->dstu, dma->resu); 2283#endif 2284 sc->sc_needwakeup &= ~wakeup; 2285 crypto_unblock(sc->sc_cid, wakeup); 2286 } 2287} 2288 2289/* 2290 * Allocate a new 'session' and return an encoded session id. 'sidp' 2291 * contains our registration id, and should contain an encoded session 2292 * id on successful allocation. 2293 */ 2294static int 2295hifn_newsession(void *arg, u_int32_t *sidp, struct cryptoini *cri) 2296{ 2297 struct cryptoini *c; 2298 struct hifn_softc *sc = arg; 2299 int mac = 0, cry = 0, sesn; 2300 struct hifn_session *ses = NULL; 2301 2302 KASSERT(sc != NULL, ("hifn_newsession: null softc")); 2303 if (sidp == NULL || cri == NULL || sc == NULL) 2304 return (EINVAL); 2305 2306 if (sc->sc_sessions == NULL) { 2307 ses = sc->sc_sessions = (struct hifn_session *)malloc( 2308 sizeof(*ses), M_DEVBUF, M_NOWAIT); 2309 if (ses == NULL) 2310 return (ENOMEM); 2311 sesn = 0; 2312 sc->sc_nsessions = 1; 2313 } else { 2314 for (sesn = 0; sesn < sc->sc_nsessions; sesn++) { 2315 if (!sc->sc_sessions[sesn].hs_used) { 2316 ses = &sc->sc_sessions[sesn]; 2317 break; 2318 } 2319 } 2320 2321 if (ses == NULL) { 2322 sesn = sc->sc_nsessions; 2323 ses = (struct hifn_session *)malloc((sesn + 1) * 2324 sizeof(*ses), M_DEVBUF, M_NOWAIT); 2325 if (ses == NULL) 2326 return (ENOMEM); 2327 bcopy(sc->sc_sessions, ses, sesn * sizeof(*ses)); 2328 bzero(sc->sc_sessions, sesn * sizeof(*ses)); 2329 free(sc->sc_sessions, M_DEVBUF); 2330 sc->sc_sessions = ses; 2331 ses = &sc->sc_sessions[sesn]; 2332 sc->sc_nsessions++; 2333 } 2334 } 2335 bzero(ses, sizeof(*ses)); 2336 ses->hs_used = 1; 2337 2338 for (c = cri; c != NULL; c = c->cri_next) { 2339 switch (c->cri_alg) { 2340 case CRYPTO_MD5: 2341 case CRYPTO_SHA1: 2342 case CRYPTO_MD5_HMAC: 2343 case CRYPTO_SHA1_HMAC: 2344 if (mac) 2345 return (EINVAL); 2346 mac = 1; 2347 ses->hs_mlen = c->cri_mlen; 2348 if (ses->hs_mlen == 0) { 2349 switch (c->cri_alg) { 2350 case CRYPTO_MD5: 2351 case CRYPTO_MD5_HMAC: 2352 ses->hs_mlen = 16; 2353 break; 2354 case CRYPTO_SHA1: 2355 case CRYPTO_SHA1_HMAC: 2356 ses->hs_mlen = 20; 2357 break; 2358 } 2359 } 2360 break; 2361 case CRYPTO_DES_CBC: 2362 case CRYPTO_3DES_CBC: 2363 case CRYPTO_AES_CBC: 2364 /* XXX this may read fewer, does it matter? */ 2365 read_random(ses->hs_iv, 2366 c->cri_alg == CRYPTO_AES_CBC ? 2367 HIFN_AES_IV_LENGTH : HIFN_IV_LENGTH); 2368 /*FALLTHROUGH*/ 2369 case CRYPTO_ARC4: 2370 if (cry) 2371 return (EINVAL); 2372 cry = 1; 2373 break; 2374 default: 2375 return (EINVAL); 2376 } 2377 } 2378 if (mac == 0 && cry == 0) 2379 return (EINVAL); 2380 2381 *sidp = HIFN_SID(device_get_unit(sc->sc_dev), sesn); 2382 2383 return (0); 2384} 2385 2386/* 2387 * Deallocate a session. 2388 * XXX this routine should run a zero'd mac/encrypt key into context ram. 2389 * XXX to blow away any keys already stored there. 2390 */ 2391static int 2392hifn_freesession(void *arg, u_int64_t tid) 2393{ 2394 struct hifn_softc *sc = arg; 2395 int session; 2396 u_int32_t sid = CRYPTO_SESID2LID(tid); 2397 2398 KASSERT(sc != NULL, ("hifn_freesession: null softc")); 2399 if (sc == NULL) 2400 return (EINVAL); 2401 2402 session = HIFN_SESSION(sid); 2403 if (session >= sc->sc_nsessions) 2404 return (EINVAL); 2405 2406 bzero(&sc->sc_sessions[session], sizeof(sc->sc_sessions[session])); 2407 return (0); 2408} 2409 2410static int 2411hifn_process(void *arg, struct cryptop *crp, int hint) 2412{ 2413 struct hifn_softc *sc = arg; 2414 struct hifn_command *cmd = NULL; 2415 int session, err, ivlen; 2416 struct cryptodesc *crd1, *crd2, *maccrd, *enccrd; 2417 2418 if (crp == NULL || crp->crp_callback == NULL) { 2419 hifnstats.hst_invalid++; 2420 return (EINVAL); 2421 } 2422 session = HIFN_SESSION(crp->crp_sid); 2423 2424 if (sc == NULL || session >= sc->sc_nsessions) { 2425 err = EINVAL; 2426 goto errout; 2427 } 2428 2429 cmd = malloc(sizeof(struct hifn_command), M_DEVBUF, M_NOWAIT | M_ZERO); 2430 if (cmd == NULL) { 2431 hifnstats.hst_nomem++; 2432 err = ENOMEM; 2433 goto errout; 2434 } 2435 2436 if (crp->crp_flags & CRYPTO_F_IMBUF) { 2437 cmd->src_m = (struct mbuf *)crp->crp_buf; 2438 cmd->dst_m = (struct mbuf *)crp->crp_buf; 2439 } else if (crp->crp_flags & CRYPTO_F_IOV) { 2440 cmd->src_io = (struct uio *)crp->crp_buf; 2441 cmd->dst_io = (struct uio *)crp->crp_buf; 2442 } else { 2443 err = EINVAL; 2444 goto errout; /* XXX we don't handle contiguous buffers! */ 2445 } 2446 2447 crd1 = crp->crp_desc; 2448 if (crd1 == NULL) { 2449 err = EINVAL; 2450 goto errout; 2451 } 2452 crd2 = crd1->crd_next; 2453 2454 if (crd2 == NULL) { 2455 if (crd1->crd_alg == CRYPTO_MD5_HMAC || 2456 crd1->crd_alg == CRYPTO_SHA1_HMAC || 2457 crd1->crd_alg == CRYPTO_SHA1 || 2458 crd1->crd_alg == CRYPTO_MD5) { 2459 maccrd = crd1; 2460 enccrd = NULL; 2461 } else if (crd1->crd_alg == CRYPTO_DES_CBC || 2462 crd1->crd_alg == CRYPTO_3DES_CBC || 2463 crd1->crd_alg == CRYPTO_AES_CBC || 2464 crd1->crd_alg == CRYPTO_ARC4) { 2465 if ((crd1->crd_flags & CRD_F_ENCRYPT) == 0) 2466 cmd->base_masks |= HIFN_BASE_CMD_DECODE; 2467 maccrd = NULL; 2468 enccrd = crd1; 2469 } else { 2470 err = EINVAL; 2471 goto errout; 2472 } 2473 } else { 2474 if ((crd1->crd_alg == CRYPTO_MD5_HMAC || 2475 crd1->crd_alg == CRYPTO_SHA1_HMAC || 2476 crd1->crd_alg == CRYPTO_MD5 || 2477 crd1->crd_alg == CRYPTO_SHA1) && 2478 (crd2->crd_alg == CRYPTO_DES_CBC || 2479 crd2->crd_alg == CRYPTO_3DES_CBC || 2480 crd2->crd_alg == CRYPTO_AES_CBC || 2481 crd2->crd_alg == CRYPTO_ARC4) && 2482 ((crd2->crd_flags & CRD_F_ENCRYPT) == 0)) { 2483 cmd->base_masks = HIFN_BASE_CMD_DECODE; 2484 maccrd = crd1; 2485 enccrd = crd2; 2486 } else if ((crd1->crd_alg == CRYPTO_DES_CBC || 2487 crd1->crd_alg == CRYPTO_ARC4 || 2488 crd1->crd_alg == CRYPTO_3DES_CBC || 2489 crd1->crd_alg == CRYPTO_AES_CBC) && 2490 (crd2->crd_alg == CRYPTO_MD5_HMAC || 2491 crd2->crd_alg == CRYPTO_SHA1_HMAC || 2492 crd2->crd_alg == CRYPTO_MD5 || 2493 crd2->crd_alg == CRYPTO_SHA1) && 2494 (crd1->crd_flags & CRD_F_ENCRYPT)) { 2495 enccrd = crd1; 2496 maccrd = crd2; 2497 } else { 2498 /* 2499 * We cannot order the 7751 as requested 2500 */ 2501 err = EINVAL; 2502 goto errout; 2503 } 2504 } 2505 2506 if (enccrd) { 2507 cmd->enccrd = enccrd; 2508 cmd->base_masks |= HIFN_BASE_CMD_CRYPT; 2509 switch (enccrd->crd_alg) { 2510 case CRYPTO_ARC4: 2511 cmd->cry_masks |= HIFN_CRYPT_CMD_ALG_RC4; 2512 break; 2513 case CRYPTO_DES_CBC: 2514 cmd->cry_masks |= HIFN_CRYPT_CMD_ALG_DES | 2515 HIFN_CRYPT_CMD_MODE_CBC | 2516 HIFN_CRYPT_CMD_NEW_IV; 2517 break; 2518 case CRYPTO_3DES_CBC: 2519 cmd->cry_masks |= HIFN_CRYPT_CMD_ALG_3DES | 2520 HIFN_CRYPT_CMD_MODE_CBC | 2521 HIFN_CRYPT_CMD_NEW_IV; 2522 break; 2523 case CRYPTO_AES_CBC: 2524 cmd->cry_masks |= HIFN_CRYPT_CMD_ALG_AES | 2525 HIFN_CRYPT_CMD_MODE_CBC | 2526 HIFN_CRYPT_CMD_NEW_IV; 2527 break; 2528 default: 2529 err = EINVAL; 2530 goto errout; 2531 } 2532 if (enccrd->crd_alg != CRYPTO_ARC4) { 2533 ivlen = ((enccrd->crd_alg == CRYPTO_AES_CBC) ? 2534 HIFN_AES_IV_LENGTH : HIFN_IV_LENGTH); 2535 if (enccrd->crd_flags & CRD_F_ENCRYPT) { 2536 if (enccrd->crd_flags & CRD_F_IV_EXPLICIT) 2537 bcopy(enccrd->crd_iv, cmd->iv, ivlen); 2538 else 2539 bcopy(sc->sc_sessions[session].hs_iv, 2540 cmd->iv, ivlen); 2541 2542 if ((enccrd->crd_flags & CRD_F_IV_PRESENT) 2543 == 0) { 2544 crypto_copyback(crp->crp_flags, 2545 crp->crp_buf, enccrd->crd_inject, 2546 ivlen, cmd->iv); 2547 } 2548 } else { 2549 if (enccrd->crd_flags & CRD_F_IV_EXPLICIT) 2550 bcopy(enccrd->crd_iv, cmd->iv, ivlen); 2551 else { 2552 crypto_copydata(crp->crp_flags, 2553 crp->crp_buf, enccrd->crd_inject, 2554 ivlen, cmd->iv); 2555 } 2556 } 2557 } 2558 2559 if (enccrd->crd_flags & CRD_F_KEY_EXPLICIT) 2560 cmd->cry_masks |= HIFN_CRYPT_CMD_NEW_KEY; 2561 cmd->ck = enccrd->crd_key; 2562 cmd->cklen = enccrd->crd_klen >> 3; 2563 cmd->cry_masks |= HIFN_CRYPT_CMD_NEW_KEY; 2564 2565 /* 2566 * Need to specify the size for the AES key in the masks. 2567 */ 2568 if ((cmd->cry_masks & HIFN_CRYPT_CMD_ALG_MASK) == 2569 HIFN_CRYPT_CMD_ALG_AES) { 2570 switch (cmd->cklen) { 2571 case 16: 2572 cmd->cry_masks |= HIFN_CRYPT_CMD_KSZ_128; 2573 break; 2574 case 24: 2575 cmd->cry_masks |= HIFN_CRYPT_CMD_KSZ_192; 2576 break; 2577 case 32: 2578 cmd->cry_masks |= HIFN_CRYPT_CMD_KSZ_256; 2579 break; 2580 default: 2581 err = EINVAL; 2582 goto errout; 2583 } 2584 } 2585 } 2586 2587 if (maccrd) { 2588 cmd->maccrd = maccrd; 2589 cmd->base_masks |= HIFN_BASE_CMD_MAC; 2590 2591 switch (maccrd->crd_alg) { 2592 case CRYPTO_MD5: 2593 cmd->mac_masks |= HIFN_MAC_CMD_ALG_MD5 | 2594 HIFN_MAC_CMD_RESULT | HIFN_MAC_CMD_MODE_HASH | 2595 HIFN_MAC_CMD_POS_IPSEC; 2596 break; 2597 case CRYPTO_MD5_HMAC: 2598 cmd->mac_masks |= HIFN_MAC_CMD_ALG_MD5 | 2599 HIFN_MAC_CMD_RESULT | HIFN_MAC_CMD_MODE_HMAC | 2600 HIFN_MAC_CMD_POS_IPSEC | HIFN_MAC_CMD_TRUNC; 2601 break; 2602 case CRYPTO_SHA1: 2603 cmd->mac_masks |= HIFN_MAC_CMD_ALG_SHA1 | 2604 HIFN_MAC_CMD_RESULT | HIFN_MAC_CMD_MODE_HASH | 2605 HIFN_MAC_CMD_POS_IPSEC; 2606 break; 2607 case CRYPTO_SHA1_HMAC: 2608 cmd->mac_masks |= HIFN_MAC_CMD_ALG_SHA1 | 2609 HIFN_MAC_CMD_RESULT | HIFN_MAC_CMD_MODE_HMAC | 2610 HIFN_MAC_CMD_POS_IPSEC | HIFN_MAC_CMD_TRUNC; 2611 break; 2612 } 2613 2614 if (maccrd->crd_alg == CRYPTO_SHA1_HMAC || 2615 maccrd->crd_alg == CRYPTO_MD5_HMAC) { 2616 cmd->mac_masks |= HIFN_MAC_CMD_NEW_KEY; 2617 bcopy(maccrd->crd_key, cmd->mac, maccrd->crd_klen >> 3); 2618 bzero(cmd->mac + (maccrd->crd_klen >> 3), 2619 HIFN_MAC_KEY_LENGTH - (maccrd->crd_klen >> 3)); 2620 } 2621 } 2622 2623 cmd->crp = crp; 2624 cmd->session_num = session; 2625 cmd->softc = sc; 2626 2627 err = hifn_crypto(sc, cmd, crp, hint); 2628 if (!err) { 2629 return 0; 2630 } else if (err == ERESTART) { 2631 /* 2632 * There weren't enough resources to dispatch the request 2633 * to the part. Notify the caller so they'll requeue this 2634 * request and resubmit it again soon. 2635 */ 2636#ifdef HIFN_DEBUG 2637 if (hifn_debug) 2638 device_printf(sc->sc_dev, "requeue request\n"); 2639#endif 2640 free(cmd, M_DEVBUF); 2641 sc->sc_needwakeup |= CRYPTO_SYMQ; 2642 return (err); 2643 } 2644 2645errout: 2646 if (cmd != NULL) 2647 free(cmd, M_DEVBUF); 2648 if (err == EINVAL) 2649 hifnstats.hst_invalid++; 2650 else 2651 hifnstats.hst_nomem++; 2652 crp->crp_etype = err; 2653 crypto_done(crp); 2654 return (err); 2655} 2656 2657static void 2658hifn_abort(struct hifn_softc *sc) 2659{ 2660 struct hifn_dma *dma = sc->sc_dma; 2661 struct hifn_command *cmd; 2662 struct cryptop *crp; 2663 int i, u; 2664 2665 i = dma->resk; u = dma->resu; 2666 while (u != 0) { 2667 cmd = dma->hifn_commands[i]; 2668 KASSERT(cmd != NULL, ("hifn_abort: null command slot %u", i)); 2669 dma->hifn_commands[i] = NULL; 2670 crp = cmd->crp; 2671 2672 if ((dma->resr[i].l & htole32(HIFN_D_VALID)) == 0) { 2673 /* Salvage what we can. */ 2674 u_int8_t *macbuf; 2675 2676 if (cmd->base_masks & HIFN_BASE_CMD_MAC) { 2677 macbuf = dma->result_bufs[i]; 2678 macbuf += 12; 2679 } else 2680 macbuf = NULL; 2681 hifnstats.hst_opackets++; 2682 hifn_callback(sc, cmd, macbuf); 2683 } else { 2684 if (cmd->src_map == cmd->dst_map) { 2685 bus_dmamap_sync(sc->sc_dmat, cmd->src_map, 2686 BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE); 2687 } else { 2688 bus_dmamap_sync(sc->sc_dmat, cmd->src_map, 2689 BUS_DMASYNC_POSTWRITE); 2690 bus_dmamap_sync(sc->sc_dmat, cmd->dst_map, 2691 BUS_DMASYNC_POSTREAD); 2692 } 2693 2694 if (cmd->src_m != cmd->dst_m) { 2695 m_freem(cmd->src_m); 2696 crp->crp_buf = (caddr_t)cmd->dst_m; 2697 } 2698 2699 /* non-shared buffers cannot be restarted */ 2700 if (cmd->src_map != cmd->dst_map) { 2701 /* 2702 * XXX should be EAGAIN, delayed until 2703 * after the reset. 2704 */ 2705 crp->crp_etype = ENOMEM; 2706 bus_dmamap_unload(sc->sc_dmat, cmd->dst_map); 2707 bus_dmamap_destroy(sc->sc_dmat, cmd->dst_map); 2708 } else 2709 crp->crp_etype = ENOMEM; 2710 2711 bus_dmamap_unload(sc->sc_dmat, cmd->src_map); 2712 bus_dmamap_destroy(sc->sc_dmat, cmd->src_map); 2713 2714 free(cmd, M_DEVBUF); 2715 if (crp->crp_etype != EAGAIN) 2716 crypto_done(crp); 2717 } 2718 2719 if (++i == HIFN_D_RES_RSIZE) 2720 i = 0; 2721 u--; 2722 } 2723 dma->resk = i; dma->resu = u; 2724 2725 hifn_reset_board(sc, 1); 2726 hifn_init_dma(sc); 2727 hifn_init_pci_registers(sc); 2728} 2729 2730static void 2731hifn_callback(struct hifn_softc *sc, struct hifn_command *cmd, u_int8_t *macbuf) 2732{ 2733 struct hifn_dma *dma = sc->sc_dma; 2734 struct cryptop *crp = cmd->crp; 2735 struct cryptodesc *crd; 2736 struct mbuf *m; 2737 int totlen, i, u, ivlen; 2738 2739 if (cmd->src_map == cmd->dst_map) { 2740 bus_dmamap_sync(sc->sc_dmat, cmd->src_map, 2741 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 2742 } else { 2743 bus_dmamap_sync(sc->sc_dmat, cmd->src_map, 2744 BUS_DMASYNC_POSTWRITE); 2745 bus_dmamap_sync(sc->sc_dmat, cmd->dst_map, 2746 BUS_DMASYNC_POSTREAD); 2747 } 2748 2749 if (crp->crp_flags & CRYPTO_F_IMBUF) { 2750 if (cmd->src_m != cmd->dst_m) { 2751 crp->crp_buf = (caddr_t)cmd->dst_m; 2752 totlen = cmd->src_mapsize; 2753 for (m = cmd->dst_m; m != NULL; m = m->m_next) { 2754 if (totlen < m->m_len) { 2755 m->m_len = totlen; 2756 totlen = 0; 2757 } else 2758 totlen -= m->m_len; 2759 } 2760 cmd->dst_m->m_pkthdr.len = cmd->src_m->m_pkthdr.len; 2761 m_freem(cmd->src_m); 2762 } 2763 } 2764 2765 if (cmd->sloplen != 0) { 2766 crypto_copyback(crp->crp_flags, crp->crp_buf, 2767 cmd->src_mapsize - cmd->sloplen, cmd->sloplen, 2768 (caddr_t)&dma->slop[cmd->slopidx]); 2769 } 2770 2771 i = dma->dstk; u = dma->dstu; 2772 while (u != 0) { 2773 if (i == HIFN_D_DST_RSIZE) 2774 i = 0; 2775 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 2776 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 2777 if (dma->dstr[i].l & htole32(HIFN_D_VALID)) { 2778 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 2779 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2780 break; 2781 } 2782 i++, u--; 2783 } 2784 dma->dstk = i; dma->dstu = u; 2785 2786 hifnstats.hst_obytes += cmd->dst_mapsize; 2787 2788 if ((cmd->base_masks & (HIFN_BASE_CMD_CRYPT | HIFN_BASE_CMD_DECODE)) == 2789 HIFN_BASE_CMD_CRYPT) { 2790 for (crd = crp->crp_desc; crd; crd = crd->crd_next) { 2791 if (crd->crd_alg != CRYPTO_DES_CBC && 2792 crd->crd_alg != CRYPTO_3DES_CBC && 2793 crd->crd_alg != CRYPTO_AES_CBC) 2794 continue; 2795 ivlen = ((crd->crd_alg == CRYPTO_AES_CBC) ? 2796 HIFN_AES_IV_LENGTH : HIFN_IV_LENGTH); 2797 crypto_copydata(crp->crp_flags, crp->crp_buf, 2798 crd->crd_skip + crd->crd_len - ivlen, ivlen, 2799 cmd->softc->sc_sessions[cmd->session_num].hs_iv); 2800 break; 2801 } 2802 } 2803 2804 if (macbuf != NULL) { 2805 for (crd = crp->crp_desc; crd; crd = crd->crd_next) { 2806 int len; 2807 2808 if (crd->crd_alg != CRYPTO_MD5 && 2809 crd->crd_alg != CRYPTO_SHA1 && 2810 crd->crd_alg != CRYPTO_MD5_HMAC && 2811 crd->crd_alg != CRYPTO_SHA1_HMAC) { 2812 continue; 2813 } 2814 len = cmd->softc->sc_sessions[cmd->session_num].hs_mlen; 2815 crypto_copyback(crp->crp_flags, crp->crp_buf, 2816 crd->crd_inject, len, macbuf); 2817 break; 2818 } 2819 } 2820 2821 if (cmd->src_map != cmd->dst_map) { 2822 bus_dmamap_unload(sc->sc_dmat, cmd->dst_map); 2823 bus_dmamap_destroy(sc->sc_dmat, cmd->dst_map); 2824 } 2825 bus_dmamap_unload(sc->sc_dmat, cmd->src_map); 2826 bus_dmamap_destroy(sc->sc_dmat, cmd->src_map); 2827 free(cmd, M_DEVBUF); 2828 crypto_done(crp); 2829} 2830 2831/* 2832 * 7811 PB3 rev/2 parts lock-up on burst writes to Group 0 2833 * and Group 1 registers; avoid conditions that could create 2834 * burst writes by doing a read in between the writes. 2835 * 2836 * NB: The read we interpose is always to the same register; 2837 * we do this because reading from an arbitrary (e.g. last) 2838 * register may not always work. 2839 */ 2840static void 2841hifn_write_reg_0(struct hifn_softc *sc, bus_size_t reg, u_int32_t val) 2842{ 2843 if (sc->sc_flags & HIFN_IS_7811) { 2844 if (sc->sc_bar0_lastreg == reg - 4) 2845 bus_space_read_4(sc->sc_st0, sc->sc_sh0, HIFN_0_PUCNFG); 2846 sc->sc_bar0_lastreg = reg; 2847 } 2848 bus_space_write_4(sc->sc_st0, sc->sc_sh0, reg, val); 2849} 2850 2851static void 2852hifn_write_reg_1(struct hifn_softc *sc, bus_size_t reg, u_int32_t val) 2853{ 2854 if (sc->sc_flags & HIFN_IS_7811) { 2855 if (sc->sc_bar1_lastreg == reg - 4) 2856 bus_space_read_4(sc->sc_st1, sc->sc_sh1, HIFN_1_REVID); 2857 sc->sc_bar1_lastreg = reg; 2858 } 2859 bus_space_write_4(sc->sc_st1, sc->sc_sh1, reg, val); 2860} 2861