hifn7751.c revision 140480
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 140480 2005-01-19 17:03:35Z sam $"); 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/clock.h> 67#include <machine/bus.h> 68#include <machine/resource.h> 69#include <sys/bus.h> 70#include <sys/rman.h> 71 72#include <opencrypto/cryptodev.h> 73#include <sys/random.h> 74 75#include <dev/pci/pcivar.h> 76#include <dev/pci/pcireg.h> 77 78#ifdef HIFN_RNDTEST 79#include <dev/rndtest/rndtest.h> 80#endif 81#include <dev/hifn/hifn7751reg.h> 82#include <dev/hifn/hifn7751var.h> 83 84/* 85 * Prototypes and count for the pci_device structure 86 */ 87static int hifn_probe(device_t); 88static int hifn_attach(device_t); 89static int hifn_detach(device_t); 90static int hifn_suspend(device_t); 91static int hifn_resume(device_t); 92static void hifn_shutdown(device_t); 93 94static device_method_t hifn_methods[] = { 95 /* Device interface */ 96 DEVMETHOD(device_probe, hifn_probe), 97 DEVMETHOD(device_attach, hifn_attach), 98 DEVMETHOD(device_detach, hifn_detach), 99 DEVMETHOD(device_suspend, hifn_suspend), 100 DEVMETHOD(device_resume, hifn_resume), 101 DEVMETHOD(device_shutdown, hifn_shutdown), 102 103 /* bus interface */ 104 DEVMETHOD(bus_print_child, bus_generic_print_child), 105 DEVMETHOD(bus_driver_added, bus_generic_driver_added), 106 107 { 0, 0 } 108}; 109static driver_t hifn_driver = { 110 "hifn", 111 hifn_methods, 112 sizeof (struct hifn_softc) 113}; 114static devclass_t hifn_devclass; 115 116DRIVER_MODULE(hifn, pci, hifn_driver, hifn_devclass, 0, 0); 117MODULE_DEPEND(hifn, crypto, 1, 1, 1); 118#ifdef HIFN_RNDTEST 119MODULE_DEPEND(hifn, rndtest, 1, 1, 1); 120#endif 121 122static void hifn_reset_board(struct hifn_softc *, int); 123static void hifn_reset_puc(struct hifn_softc *); 124static void hifn_puc_wait(struct hifn_softc *); 125static int hifn_enable_crypto(struct hifn_softc *); 126static void hifn_set_retry(struct hifn_softc *sc); 127static void hifn_init_dma(struct hifn_softc *); 128static void hifn_init_pci_registers(struct hifn_softc *); 129static int hifn_sramsize(struct hifn_softc *); 130static int hifn_dramsize(struct hifn_softc *); 131static int hifn_ramtype(struct hifn_softc *); 132static void hifn_sessions(struct hifn_softc *); 133static void hifn_intr(void *); 134static u_int hifn_write_command(struct hifn_command *, u_int8_t *); 135static u_int32_t hifn_next_signature(u_int32_t a, u_int cnt); 136static int hifn_newsession(void *, u_int32_t *, struct cryptoini *); 137static int hifn_freesession(void *, u_int64_t); 138static int hifn_process(void *, struct cryptop *, int); 139static void hifn_callback(struct hifn_softc *, struct hifn_command *, u_int8_t *); 140static int hifn_crypto(struct hifn_softc *, struct hifn_command *, struct cryptop *, int); 141static int hifn_readramaddr(struct hifn_softc *, int, u_int8_t *); 142static int hifn_writeramaddr(struct hifn_softc *, int, u_int8_t *); 143static int hifn_dmamap_load_src(struct hifn_softc *, struct hifn_command *); 144static int hifn_dmamap_load_dst(struct hifn_softc *, struct hifn_command *); 145static int hifn_init_pubrng(struct hifn_softc *); 146static void hifn_rng(void *); 147static void hifn_tick(void *); 148static void hifn_abort(struct hifn_softc *); 149static void hifn_alloc_slot(struct hifn_softc *, int *, int *, int *, int *); 150 151static void hifn_write_reg_0(struct hifn_softc *, bus_size_t, u_int32_t); 152static void hifn_write_reg_1(struct hifn_softc *, bus_size_t, u_int32_t); 153 154static __inline u_int32_t 155READ_REG_0(struct hifn_softc *sc, bus_size_t reg) 156{ 157 u_int32_t v = bus_space_read_4(sc->sc_st0, sc->sc_sh0, reg); 158 sc->sc_bar0_lastreg = (bus_size_t) -1; 159 return (v); 160} 161#define WRITE_REG_0(sc, reg, val) hifn_write_reg_0(sc, reg, val) 162 163static __inline u_int32_t 164READ_REG_1(struct hifn_softc *sc, bus_size_t reg) 165{ 166 u_int32_t v = bus_space_read_4(sc->sc_st1, sc->sc_sh1, reg); 167 sc->sc_bar1_lastreg = (bus_size_t) -1; 168 return (v); 169} 170#define WRITE_REG_1(sc, reg, val) hifn_write_reg_1(sc, reg, val) 171 172SYSCTL_NODE(_hw, OID_AUTO, hifn, CTLFLAG_RD, 0, "Hifn driver parameters"); 173 174#ifdef HIFN_DEBUG 175static int hifn_debug = 0; 176SYSCTL_INT(_hw_hifn, OID_AUTO, debug, CTLFLAG_RW, &hifn_debug, 177 0, "control debugging msgs"); 178#endif 179 180static struct hifn_stats hifnstats; 181SYSCTL_STRUCT(_hw_hifn, OID_AUTO, stats, CTLFLAG_RD, &hifnstats, 182 hifn_stats, "driver statistics"); 183static int hifn_maxbatch = 1; 184SYSCTL_INT(_hw_hifn, OID_AUTO, maxbatch, CTLFLAG_RW, &hifn_maxbatch, 185 0, "max ops to batch w/o interrupt"); 186 187/* 188 * Probe for a supported device. The PCI vendor and device 189 * IDs are used to detect devices we know how to handle. 190 */ 191static int 192hifn_probe(device_t dev) 193{ 194 if (pci_get_vendor(dev) == PCI_VENDOR_INVERTEX && 195 pci_get_device(dev) == PCI_PRODUCT_INVERTEX_AEON) 196 return (0); 197 if (pci_get_vendor(dev) == PCI_VENDOR_HIFN && 198 (pci_get_device(dev) == PCI_PRODUCT_HIFN_7751 || 199 pci_get_device(dev) == PCI_PRODUCT_HIFN_7951 || 200 pci_get_device(dev) == PCI_PRODUCT_HIFN_7955 || 201 pci_get_device(dev) == PCI_PRODUCT_HIFN_7956 || 202 pci_get_device(dev) == PCI_PRODUCT_HIFN_7811)) 203 return (0); 204 if (pci_get_vendor(dev) == PCI_VENDOR_NETSEC && 205 pci_get_device(dev) == PCI_PRODUCT_NETSEC_7751) 206 return (0); 207 return (ENXIO); 208} 209 210static void 211hifn_dmamap_cb(void *arg, bus_dma_segment_t *segs, int nseg, int error) 212{ 213 bus_addr_t *paddr = (bus_addr_t*) arg; 214 *paddr = segs->ds_addr; 215} 216 217static const char* 218hifn_partname(struct hifn_softc *sc) 219{ 220 /* XXX sprintf numbers when not decoded */ 221 switch (pci_get_vendor(sc->sc_dev)) { 222 case PCI_VENDOR_HIFN: 223 switch (pci_get_device(sc->sc_dev)) { 224 case PCI_PRODUCT_HIFN_6500: return "Hifn 6500"; 225 case PCI_PRODUCT_HIFN_7751: return "Hifn 7751"; 226 case PCI_PRODUCT_HIFN_7811: return "Hifn 7811"; 227 case PCI_PRODUCT_HIFN_7951: return "Hifn 7951"; 228 case PCI_PRODUCT_HIFN_7955: return "Hifn 7955"; 229 case PCI_PRODUCT_HIFN_7956: return "Hifn 7956"; 230 } 231 return "Hifn unknown-part"; 232 case PCI_VENDOR_INVERTEX: 233 switch (pci_get_device(sc->sc_dev)) { 234 case PCI_PRODUCT_INVERTEX_AEON: return "Invertex AEON"; 235 } 236 return "Invertex unknown-part"; 237 case PCI_VENDOR_NETSEC: 238 switch (pci_get_device(sc->sc_dev)) { 239 case PCI_PRODUCT_NETSEC_7751: return "NetSec 7751"; 240 } 241 return "NetSec unknown-part"; 242 } 243 return "Unknown-vendor unknown-part"; 244} 245 246static void 247default_harvest(struct rndtest_state *rsp, void *buf, u_int count) 248{ 249 random_harvest(buf, count, count*NBBY, 0, RANDOM_PURE); 250} 251 252static u_int 253checkmaxmin(device_t dev, const char *what, u_int v, u_int min, u_int max) 254{ 255 if (v > max) { 256 device_printf(dev, "Warning, %s %u out of range, " 257 "using max %u\n", what, v, max); 258 v = max; 259 } else if (v < min) { 260 device_printf(dev, "Warning, %s %u out of range, " 261 "using min %u\n", what, v, min); 262 v = min; 263 } 264 return v; 265} 266 267/* 268 * Select PLL configuration for 795x parts. This is complicated in 269 * that we cannot determine the optimal parameters without user input. 270 * The reference clock is derived from an external clock through a 271 * multiplier. The external clock is either the host bus (i.e. PCI) 272 * or an external clock generator. When using the PCI bus we assume 273 * the clock is either 33 or 66 MHz; for an external source we cannot 274 * tell the speed. 275 * 276 * PLL configuration is done with a string: "pci" for PCI bus, or "ext" 277 * for an external source, followed by the frequency. We calculate 278 * the appropriate multiplier and PLL register contents accordingly. 279 * When no configuration is given we default to "pci66" since that 280 * always will allow the card to work. If a card is using the PCI 281 * bus clock and in a 33MHz slot then it will be operating at half 282 * speed until the correct information is provided. 283 */ 284static void 285hifn_getpllconfig(device_t dev, u_int *pll) 286{ 287 const char *pllspec; 288 u_int freq, mul, fl, fh; 289 u_int32_t pllconfig; 290 char *nxt; 291 292 if (resource_string_value("hifn", device_get_unit(dev), 293 "pllconfig", &pllspec)) 294 pllspec = "pci66"; 295 fl = 33, fh = 66; 296 pllconfig = 0; 297 if (strncmp(pllspec, "ext", 3) == 0) { 298 pllspec += 3; 299 pllconfig |= HIFN_PLL_REF_SEL; 300 switch (pci_get_device(dev)) { 301 case PCI_PRODUCT_HIFN_7955: 302 case PCI_PRODUCT_HIFN_7956: 303 fl = 20, fh = 100; 304 break; 305#ifdef notyet 306 case PCI_PRODUCT_HIFN_7954: 307 fl = 20, fh = 66; 308 break; 309#endif 310 } 311 } else if (strncmp(pllspec, "pci", 3) == 0) 312 pllspec += 3; 313 freq = strtoul(pllspec, &nxt, 10); 314 if (nxt == pllspec) 315 freq = 66; 316 else 317 freq = checkmaxmin(dev, "frequency", freq, fl, fh); 318 /* 319 * Calculate multiplier. We target a Fck of 266 MHz, 320 * allowing only even values, possibly rounded down. 321 * Multipliers > 8 must set the charge pump current. 322 */ 323 mul = checkmaxmin(dev, "PLL divisor", (266 / freq) &~ 1, 2, 12); 324 pllconfig |= (mul / 2 - 1) << HIFN_PLL_ND_SHIFT; 325 if (mul > 8) 326 pllconfig |= HIFN_PLL_IS; 327 *pll = pllconfig; 328} 329 330/* 331 * Attach an interface that successfully probed. 332 */ 333static int 334hifn_attach(device_t dev) 335{ 336 struct hifn_softc *sc = device_get_softc(dev); 337 u_int32_t cmd; 338 caddr_t kva; 339 int rseg, rid; 340 char rbase; 341 u_int16_t ena, rev; 342 343 KASSERT(sc != NULL, ("hifn_attach: null software carrier!")); 344 bzero(sc, sizeof (*sc)); 345 sc->sc_dev = dev; 346 347 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), "hifn driver", MTX_DEF); 348 349 /* XXX handle power management */ 350 351 /* 352 * The 7951 and 795x have a random number generator and 353 * public key support; note this. 354 */ 355 if (pci_get_vendor(dev) == PCI_VENDOR_HIFN && 356 (pci_get_device(dev) == PCI_PRODUCT_HIFN_7951 || 357 pci_get_device(dev) == PCI_PRODUCT_HIFN_7955 || 358 pci_get_device(dev) == PCI_PRODUCT_HIFN_7956)) 359 sc->sc_flags = HIFN_HAS_RNG | HIFN_HAS_PUBLIC; 360 /* 361 * The 7811 has a random number generator and 362 * we also note it's identity 'cuz of some quirks. 363 */ 364 if (pci_get_vendor(dev) == PCI_VENDOR_HIFN && 365 pci_get_device(dev) == PCI_PRODUCT_HIFN_7811) 366 sc->sc_flags |= HIFN_IS_7811 | HIFN_HAS_RNG; 367 368 /* 369 * The 795x parts support AES. 370 */ 371 if (pci_get_vendor(dev) == PCI_VENDOR_HIFN && 372 (pci_get_device(dev) == PCI_PRODUCT_HIFN_7955 || 373 pci_get_device(dev) == PCI_PRODUCT_HIFN_7956)) { 374 sc->sc_flags |= HIFN_IS_7956 | HIFN_HAS_AES; 375 /* 376 * Select PLL configuration. This depends on the 377 * bus and board design and must be manually configured 378 * if the default setting is unacceptable. 379 */ 380 hifn_getpllconfig(dev, &sc->sc_pllconfig); 381 } 382 383 /* 384 * Configure support for memory-mapped access to 385 * registers and for DMA operations. 386 */ 387#define PCIM_ENA (PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN) 388 cmd = pci_read_config(dev, PCIR_COMMAND, 4); 389 cmd |= PCIM_ENA; 390 pci_write_config(dev, PCIR_COMMAND, cmd, 4); 391 cmd = pci_read_config(dev, PCIR_COMMAND, 4); 392 if ((cmd & PCIM_ENA) != PCIM_ENA) { 393 device_printf(dev, "failed to enable %s\n", 394 (cmd & PCIM_ENA) == 0 ? 395 "memory mapping & bus mastering" : 396 (cmd & PCIM_CMD_MEMEN) == 0 ? 397 "memory mapping" : "bus mastering"); 398 goto fail_pci; 399 } 400#undef PCIM_ENA 401 402 /* 403 * Setup PCI resources. Note that we record the bus 404 * tag and handle for each register mapping, this is 405 * used by the READ_REG_0, WRITE_REG_0, READ_REG_1, 406 * and WRITE_REG_1 macros throughout the driver. 407 */ 408 rid = HIFN_BAR0; 409 sc->sc_bar0res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, 410 RF_ACTIVE); 411 if (sc->sc_bar0res == NULL) { 412 device_printf(dev, "cannot map bar%d register space\n", 0); 413 goto fail_pci; 414 } 415 sc->sc_st0 = rman_get_bustag(sc->sc_bar0res); 416 sc->sc_sh0 = rman_get_bushandle(sc->sc_bar0res); 417 sc->sc_bar0_lastreg = (bus_size_t) -1; 418 419 rid = HIFN_BAR1; 420 sc->sc_bar1res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, 421 RF_ACTIVE); 422 if (sc->sc_bar1res == NULL) { 423 device_printf(dev, "cannot map bar%d register space\n", 1); 424 goto fail_io0; 425 } 426 sc->sc_st1 = rman_get_bustag(sc->sc_bar1res); 427 sc->sc_sh1 = rman_get_bushandle(sc->sc_bar1res); 428 sc->sc_bar1_lastreg = (bus_size_t) -1; 429 430 hifn_set_retry(sc); 431 432 /* 433 * Setup the area where the Hifn DMA's descriptors 434 * and associated data structures. 435 */ 436 if (bus_dma_tag_create(NULL, /* parent */ 437 1, 0, /* alignment,boundary */ 438 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 439 BUS_SPACE_MAXADDR, /* highaddr */ 440 NULL, NULL, /* filter, filterarg */ 441 HIFN_MAX_DMALEN, /* maxsize */ 442 MAX_SCATTER, /* nsegments */ 443 HIFN_MAX_SEGLEN, /* maxsegsize */ 444 BUS_DMA_ALLOCNOW, /* flags */ 445 NULL, /* lockfunc */ 446 NULL, /* lockarg */ 447 &sc->sc_dmat)) { 448 device_printf(dev, "cannot allocate DMA tag\n"); 449 goto fail_io1; 450 } 451 if (bus_dmamap_create(sc->sc_dmat, BUS_DMA_NOWAIT, &sc->sc_dmamap)) { 452 device_printf(dev, "cannot create dma map\n"); 453 bus_dma_tag_destroy(sc->sc_dmat); 454 goto fail_io1; 455 } 456 if (bus_dmamem_alloc(sc->sc_dmat, (void**) &kva, BUS_DMA_NOWAIT, &sc->sc_dmamap)) { 457 device_printf(dev, "cannot alloc dma buffer\n"); 458 bus_dmamap_destroy(sc->sc_dmat, sc->sc_dmamap); 459 bus_dma_tag_destroy(sc->sc_dmat); 460 goto fail_io1; 461 } 462 if (bus_dmamap_load(sc->sc_dmat, sc->sc_dmamap, kva, 463 sizeof (*sc->sc_dma), 464 hifn_dmamap_cb, &sc->sc_dma_physaddr, 465 BUS_DMA_NOWAIT)) { 466 device_printf(dev, "cannot load dma map\n"); 467 bus_dmamem_free(sc->sc_dmat, kva, sc->sc_dmamap); 468 bus_dmamap_destroy(sc->sc_dmat, sc->sc_dmamap); 469 bus_dma_tag_destroy(sc->sc_dmat); 470 goto fail_io1; 471 } 472 sc->sc_dma = (struct hifn_dma *)kva; 473 bzero(sc->sc_dma, sizeof(*sc->sc_dma)); 474 475 KASSERT(sc->sc_st0 != 0, ("hifn_attach: null bar0 tag!")); 476 KASSERT(sc->sc_sh0 != 0, ("hifn_attach: null bar0 handle!")); 477 KASSERT(sc->sc_st1 != 0, ("hifn_attach: null bar1 tag!")); 478 KASSERT(sc->sc_sh1 != 0, ("hifn_attach: null bar1 handle!")); 479 480 /* 481 * Reset the board and do the ``secret handshake'' 482 * to enable the crypto support. Then complete the 483 * initialization procedure by setting up the interrupt 484 * and hooking in to the system crypto support so we'll 485 * get used for system services like the crypto device, 486 * IPsec, RNG device, etc. 487 */ 488 hifn_reset_board(sc, 0); 489 490 if (hifn_enable_crypto(sc) != 0) { 491 device_printf(dev, "crypto enabling failed\n"); 492 goto fail_mem; 493 } 494 hifn_reset_puc(sc); 495 496 hifn_init_dma(sc); 497 hifn_init_pci_registers(sc); 498 499 /* XXX can't dynamically determine ram type for 795x; force dram */ 500 if (sc->sc_flags & HIFN_IS_7956) 501 sc->sc_drammodel = 1; 502 else if (hifn_ramtype(sc)) 503 goto fail_mem; 504 505 if (sc->sc_drammodel == 0) 506 hifn_sramsize(sc); 507 else 508 hifn_dramsize(sc); 509 510 /* 511 * Workaround for NetSec 7751 rev A: half ram size because two 512 * of the address lines were left floating 513 */ 514 if (pci_get_vendor(dev) == PCI_VENDOR_NETSEC && 515 pci_get_device(dev) == PCI_PRODUCT_NETSEC_7751 && 516 pci_get_revid(dev) == 0x61) /*XXX???*/ 517 sc->sc_ramsize >>= 1; 518 519 /* 520 * Arrange the interrupt line. 521 */ 522 rid = 0; 523 sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, 524 RF_SHAREABLE|RF_ACTIVE); 525 if (sc->sc_irq == NULL) { 526 device_printf(dev, "could not map interrupt\n"); 527 goto fail_mem; 528 } 529 /* 530 * NB: Network code assumes we are blocked with splimp() 531 * so make sure the IRQ is marked appropriately. 532 */ 533 if (bus_setup_intr(dev, sc->sc_irq, INTR_TYPE_NET | INTR_MPSAFE, 534 hifn_intr, sc, &sc->sc_intrhand)) { 535 device_printf(dev, "could not setup interrupt\n"); 536 goto fail_intr2; 537 } 538 539 hifn_sessions(sc); 540 541 /* 542 * NB: Keep only the low 16 bits; this masks the chip id 543 * from the 7951. 544 */ 545 rev = READ_REG_1(sc, HIFN_1_REVID) & 0xffff; 546 547 rseg = sc->sc_ramsize / 1024; 548 rbase = 'K'; 549 if (sc->sc_ramsize >= (1024 * 1024)) { 550 rbase = 'M'; 551 rseg /= 1024; 552 } 553 device_printf(sc->sc_dev, "%s, rev %u, %d%cB %cram", 554 hifn_partname(sc), rev, 555 rseg, rbase, sc->sc_drammodel ? 'd' : 's'); 556 if (sc->sc_flags & HIFN_IS_7956) 557 printf(", pll=0x%x<%s clk, %ux mult>", 558 sc->sc_pllconfig, 559 sc->sc_pllconfig & HIFN_PLL_REF_SEL ? "ext" : "pci", 560 2 + 2*((sc->sc_pllconfig & HIFN_PLL_ND) >> 11)); 561 printf("\n"); 562 563 sc->sc_cid = crypto_get_driverid(0); 564 if (sc->sc_cid < 0) { 565 device_printf(dev, "could not get crypto driver id\n"); 566 goto fail_intr; 567 } 568 569 WRITE_REG_0(sc, HIFN_0_PUCNFG, 570 READ_REG_0(sc, HIFN_0_PUCNFG) | HIFN_PUCNFG_CHIPID); 571 ena = READ_REG_0(sc, HIFN_0_PUSTAT) & HIFN_PUSTAT_CHIPENA; 572 573 switch (ena) { 574 case HIFN_PUSTAT_ENA_2: 575 crypto_register(sc->sc_cid, CRYPTO_3DES_CBC, 0, 0, 576 hifn_newsession, hifn_freesession, hifn_process, sc); 577 crypto_register(sc->sc_cid, CRYPTO_ARC4, 0, 0, 578 hifn_newsession, hifn_freesession, hifn_process, sc); 579 if (sc->sc_flags & HIFN_HAS_AES) 580 crypto_register(sc->sc_cid, CRYPTO_AES_CBC, 0, 0, 581 hifn_newsession, hifn_freesession, 582 hifn_process, sc); 583 /*FALLTHROUGH*/ 584 case HIFN_PUSTAT_ENA_1: 585 crypto_register(sc->sc_cid, CRYPTO_MD5, 0, 0, 586 hifn_newsession, hifn_freesession, hifn_process, sc); 587 crypto_register(sc->sc_cid, CRYPTO_SHA1, 0, 0, 588 hifn_newsession, hifn_freesession, hifn_process, sc); 589 crypto_register(sc->sc_cid, CRYPTO_MD5_HMAC, 0, 0, 590 hifn_newsession, hifn_freesession, hifn_process, sc); 591 crypto_register(sc->sc_cid, CRYPTO_SHA1_HMAC, 0, 0, 592 hifn_newsession, hifn_freesession, hifn_process, sc); 593 crypto_register(sc->sc_cid, CRYPTO_DES_CBC, 0, 0, 594 hifn_newsession, hifn_freesession, hifn_process, sc); 595 break; 596 } 597 598 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 599 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 600 601 if (sc->sc_flags & (HIFN_HAS_PUBLIC | HIFN_HAS_RNG)) 602 hifn_init_pubrng(sc); 603 604 callout_init(&sc->sc_tickto, CALLOUT_MPSAFE); 605 callout_reset(&sc->sc_tickto, hz, hifn_tick, sc); 606 607 return (0); 608 609fail_intr: 610 bus_teardown_intr(dev, sc->sc_irq, sc->sc_intrhand); 611fail_intr2: 612 /* XXX don't store rid */ 613 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq); 614fail_mem: 615 bus_dmamap_unload(sc->sc_dmat, sc->sc_dmamap); 616 bus_dmamem_free(sc->sc_dmat, sc->sc_dma, sc->sc_dmamap); 617 bus_dmamap_destroy(sc->sc_dmat, sc->sc_dmamap); 618 bus_dma_tag_destroy(sc->sc_dmat); 619 620 /* Turn off DMA polling */ 621 WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET | 622 HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE); 623fail_io1: 624 bus_release_resource(dev, SYS_RES_MEMORY, HIFN_BAR1, sc->sc_bar1res); 625fail_io0: 626 bus_release_resource(dev, SYS_RES_MEMORY, HIFN_BAR0, sc->sc_bar0res); 627fail_pci: 628 mtx_destroy(&sc->sc_mtx); 629 return (ENXIO); 630} 631 632/* 633 * Detach an interface that successfully probed. 634 */ 635static int 636hifn_detach(device_t dev) 637{ 638 struct hifn_softc *sc = device_get_softc(dev); 639 640 KASSERT(sc != NULL, ("hifn_detach: null software carrier!")); 641 642 /* disable interrupts */ 643 WRITE_REG_1(sc, HIFN_1_DMA_IER, 0); 644 645 /*XXX other resources */ 646 callout_stop(&sc->sc_tickto); 647 callout_stop(&sc->sc_rngto); 648#ifdef HIFN_RNDTEST 649 if (sc->sc_rndtest) 650 rndtest_detach(sc->sc_rndtest); 651#endif 652 653 /* Turn off DMA polling */ 654 WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET | 655 HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE); 656 657 crypto_unregister_all(sc->sc_cid); 658 659 bus_generic_detach(dev); /*XXX should be no children, right? */ 660 661 bus_teardown_intr(dev, sc->sc_irq, sc->sc_intrhand); 662 /* XXX don't store rid */ 663 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq); 664 665 bus_dmamap_unload(sc->sc_dmat, sc->sc_dmamap); 666 bus_dmamem_free(sc->sc_dmat, sc->sc_dma, sc->sc_dmamap); 667 bus_dmamap_destroy(sc->sc_dmat, sc->sc_dmamap); 668 bus_dma_tag_destroy(sc->sc_dmat); 669 670 bus_release_resource(dev, SYS_RES_MEMORY, HIFN_BAR1, sc->sc_bar1res); 671 bus_release_resource(dev, SYS_RES_MEMORY, HIFN_BAR0, sc->sc_bar0res); 672 673 mtx_destroy(&sc->sc_mtx); 674 675 return (0); 676} 677 678/* 679 * Stop all chip I/O so that the kernel's probe routines don't 680 * get confused by errant DMAs when rebooting. 681 */ 682static void 683hifn_shutdown(device_t dev) 684{ 685#ifdef notyet 686 hifn_stop(device_get_softc(dev)); 687#endif 688} 689 690/* 691 * Device suspend routine. Stop the interface and save some PCI 692 * settings in case the BIOS doesn't restore them properly on 693 * resume. 694 */ 695static int 696hifn_suspend(device_t dev) 697{ 698 struct hifn_softc *sc = device_get_softc(dev); 699#ifdef notyet 700 int i; 701 702 hifn_stop(sc); 703 for (i = 0; i < 5; i++) 704 sc->saved_maps[i] = pci_read_config(dev, PCIR_BAR(i), 4); 705 sc->saved_biosaddr = pci_read_config(dev, PCIR_BIOS, 4); 706 sc->saved_intline = pci_read_config(dev, PCIR_INTLINE, 1); 707 sc->saved_cachelnsz = pci_read_config(dev, PCIR_CACHELNSZ, 1); 708 sc->saved_lattimer = pci_read_config(dev, PCIR_LATTIMER, 1); 709#endif 710 sc->sc_suspended = 1; 711 712 return (0); 713} 714 715/* 716 * Device resume routine. Restore some PCI settings in case the BIOS 717 * doesn't, re-enable busmastering, and restart the interface if 718 * appropriate. 719 */ 720static int 721hifn_resume(device_t dev) 722{ 723 struct hifn_softc *sc = device_get_softc(dev); 724#ifdef notyet 725 int i; 726 727 /* better way to do this? */ 728 for (i = 0; i < 5; i++) 729 pci_write_config(dev, PCIR_BAR(i), sc->saved_maps[i], 4); 730 pci_write_config(dev, PCIR_BIOS, sc->saved_biosaddr, 4); 731 pci_write_config(dev, PCIR_INTLINE, sc->saved_intline, 1); 732 pci_write_config(dev, PCIR_CACHELNSZ, sc->saved_cachelnsz, 1); 733 pci_write_config(dev, PCIR_LATTIMER, sc->saved_lattimer, 1); 734 735 /* reenable busmastering */ 736 pci_enable_busmaster(dev); 737 pci_enable_io(dev, HIFN_RES); 738 739 /* reinitialize interface if necessary */ 740 if (ifp->if_flags & IFF_UP) 741 rl_init(sc); 742#endif 743 sc->sc_suspended = 0; 744 745 return (0); 746} 747 748static int 749hifn_init_pubrng(struct hifn_softc *sc) 750{ 751 u_int32_t r; 752 int i; 753 754#ifdef HIFN_RNDTEST 755 sc->sc_rndtest = rndtest_attach(sc->sc_dev); 756 if (sc->sc_rndtest) 757 sc->sc_harvest = rndtest_harvest; 758 else 759 sc->sc_harvest = default_harvest; 760#else 761 sc->sc_harvest = default_harvest; 762#endif 763 if ((sc->sc_flags & HIFN_IS_7811) == 0) { 764 /* Reset 7951 public key/rng engine */ 765 WRITE_REG_1(sc, HIFN_1_PUB_RESET, 766 READ_REG_1(sc, HIFN_1_PUB_RESET) | HIFN_PUBRST_RESET); 767 768 for (i = 0; i < 100; i++) { 769 DELAY(1000); 770 if ((READ_REG_1(sc, HIFN_1_PUB_RESET) & 771 HIFN_PUBRST_RESET) == 0) 772 break; 773 } 774 775 if (i == 100) { 776 device_printf(sc->sc_dev, "public key init failed\n"); 777 return (1); 778 } 779 } 780 781 /* Enable the rng, if available */ 782 if (sc->sc_flags & HIFN_HAS_RNG) { 783 if (sc->sc_flags & HIFN_IS_7811) { 784 r = READ_REG_1(sc, HIFN_1_7811_RNGENA); 785 if (r & HIFN_7811_RNGENA_ENA) { 786 r &= ~HIFN_7811_RNGENA_ENA; 787 WRITE_REG_1(sc, HIFN_1_7811_RNGENA, r); 788 } 789 WRITE_REG_1(sc, HIFN_1_7811_RNGCFG, 790 HIFN_7811_RNGCFG_DEFL); 791 r |= HIFN_7811_RNGENA_ENA; 792 WRITE_REG_1(sc, HIFN_1_7811_RNGENA, r); 793 } else 794 WRITE_REG_1(sc, HIFN_1_RNG_CONFIG, 795 READ_REG_1(sc, HIFN_1_RNG_CONFIG) | 796 HIFN_RNGCFG_ENA); 797 798 sc->sc_rngfirst = 1; 799 if (hz >= 100) 800 sc->sc_rnghz = hz / 100; 801 else 802 sc->sc_rnghz = 1; 803 callout_init(&sc->sc_rngto, CALLOUT_MPSAFE); 804 callout_reset(&sc->sc_rngto, sc->sc_rnghz, hifn_rng, sc); 805 } 806 807 /* Enable public key engine, if available */ 808 if (sc->sc_flags & HIFN_HAS_PUBLIC) { 809 WRITE_REG_1(sc, HIFN_1_PUB_IEN, HIFN_PUBIEN_DONE); 810 sc->sc_dmaier |= HIFN_DMAIER_PUBDONE; 811 WRITE_REG_1(sc, HIFN_1_DMA_IER, sc->sc_dmaier); 812 } 813 814 return (0); 815} 816 817static void 818hifn_rng(void *vsc) 819{ 820#define RANDOM_BITS(n) (n)*sizeof (u_int32_t), (n)*sizeof (u_int32_t)*NBBY, 0 821 struct hifn_softc *sc = vsc; 822 u_int32_t sts, num[2]; 823 int i; 824 825 if (sc->sc_flags & HIFN_IS_7811) { 826 for (i = 0; i < 5; i++) { 827 sts = READ_REG_1(sc, HIFN_1_7811_RNGSTS); 828 if (sts & HIFN_7811_RNGSTS_UFL) { 829 device_printf(sc->sc_dev, 830 "RNG underflow: disabling\n"); 831 return; 832 } 833 if ((sts & HIFN_7811_RNGSTS_RDY) == 0) 834 break; 835 836 /* 837 * There are at least two words in the RNG FIFO 838 * at this point. 839 */ 840 num[0] = READ_REG_1(sc, HIFN_1_7811_RNGDAT); 841 num[1] = READ_REG_1(sc, HIFN_1_7811_RNGDAT); 842 /* NB: discard first data read */ 843 if (sc->sc_rngfirst) 844 sc->sc_rngfirst = 0; 845 else 846 (*sc->sc_harvest)(sc->sc_rndtest, 847 num, sizeof (num)); 848 } 849 } else { 850 num[0] = READ_REG_1(sc, HIFN_1_RNG_DATA); 851 852 /* NB: discard first data read */ 853 if (sc->sc_rngfirst) 854 sc->sc_rngfirst = 0; 855 else 856 (*sc->sc_harvest)(sc->sc_rndtest, 857 num, sizeof (num[0])); 858 } 859 860 callout_reset(&sc->sc_rngto, sc->sc_rnghz, hifn_rng, sc); 861#undef RANDOM_BITS 862} 863 864static void 865hifn_puc_wait(struct hifn_softc *sc) 866{ 867 int i; 868 869 for (i = 5000; i > 0; i--) { 870 DELAY(1); 871 if (!(READ_REG_0(sc, HIFN_0_PUCTRL) & HIFN_PUCTRL_RESET)) 872 break; 873 } 874 if (!i) 875 device_printf(sc->sc_dev, "proc unit did not reset\n"); 876} 877 878/* 879 * Reset the processing unit. 880 */ 881static void 882hifn_reset_puc(struct hifn_softc *sc) 883{ 884 /* Reset processing unit */ 885 WRITE_REG_0(sc, HIFN_0_PUCTRL, HIFN_PUCTRL_DMAENA); 886 hifn_puc_wait(sc); 887} 888 889/* 890 * Set the Retry and TRDY registers; note that we set them to 891 * zero because the 7811 locks up when forced to retry (section 892 * 3.6 of "Specification Update SU-0014-04". Not clear if we 893 * should do this for all Hifn parts, but it doesn't seem to hurt. 894 */ 895static void 896hifn_set_retry(struct hifn_softc *sc) 897{ 898 /* NB: RETRY only responds to 8-bit reads/writes */ 899 pci_write_config(sc->sc_dev, HIFN_RETRY_TIMEOUT, 0, 1); 900 pci_write_config(sc->sc_dev, HIFN_TRDY_TIMEOUT, 0, 4); 901} 902 903/* 904 * Resets the board. Values in the regesters are left as is 905 * from the reset (i.e. initial values are assigned elsewhere). 906 */ 907static void 908hifn_reset_board(struct hifn_softc *sc, int full) 909{ 910 u_int32_t reg; 911 912 /* 913 * Set polling in the DMA configuration register to zero. 0x7 avoids 914 * resetting the board and zeros out the other fields. 915 */ 916 WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET | 917 HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE); 918 919 /* 920 * Now that polling has been disabled, we have to wait 1 ms 921 * before resetting the board. 922 */ 923 DELAY(1000); 924 925 /* Reset the DMA unit */ 926 if (full) { 927 WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MODE); 928 DELAY(1000); 929 } else { 930 WRITE_REG_1(sc, HIFN_1_DMA_CNFG, 931 HIFN_DMACNFG_MODE | HIFN_DMACNFG_MSTRESET); 932 hifn_reset_puc(sc); 933 } 934 935 KASSERT(sc->sc_dma != NULL, ("hifn_reset_board: null DMA tag!")); 936 bzero(sc->sc_dma, sizeof(*sc->sc_dma)); 937 938 /* Bring dma unit out of reset */ 939 WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET | 940 HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE); 941 942 hifn_puc_wait(sc); 943 hifn_set_retry(sc); 944 945 if (sc->sc_flags & HIFN_IS_7811) { 946 for (reg = 0; reg < 1000; reg++) { 947 if (READ_REG_1(sc, HIFN_1_7811_MIPSRST) & 948 HIFN_MIPSRST_CRAMINIT) 949 break; 950 DELAY(1000); 951 } 952 if (reg == 1000) 953 printf(": cram init timeout\n"); 954 } 955} 956 957static u_int32_t 958hifn_next_signature(u_int32_t a, u_int cnt) 959{ 960 int i; 961 u_int32_t v; 962 963 for (i = 0; i < cnt; i++) { 964 965 /* get the parity */ 966 v = a & 0x80080125; 967 v ^= v >> 16; 968 v ^= v >> 8; 969 v ^= v >> 4; 970 v ^= v >> 2; 971 v ^= v >> 1; 972 973 a = (v & 1) ^ (a << 1); 974 } 975 976 return a; 977} 978 979struct pci2id { 980 u_short pci_vendor; 981 u_short pci_prod; 982 char card_id[13]; 983}; 984static struct pci2id pci2id[] = { 985 { 986 PCI_VENDOR_HIFN, 987 PCI_PRODUCT_HIFN_7951, 988 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 989 0x00, 0x00, 0x00, 0x00, 0x00 } 990 }, { 991 PCI_VENDOR_HIFN, 992 PCI_PRODUCT_HIFN_7955, 993 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 994 0x00, 0x00, 0x00, 0x00, 0x00 } 995 }, { 996 PCI_VENDOR_HIFN, 997 PCI_PRODUCT_HIFN_7956, 998 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 999 0x00, 0x00, 0x00, 0x00, 0x00 } 1000 }, { 1001 PCI_VENDOR_NETSEC, 1002 PCI_PRODUCT_NETSEC_7751, 1003 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1004 0x00, 0x00, 0x00, 0x00, 0x00 } 1005 }, { 1006 PCI_VENDOR_INVERTEX, 1007 PCI_PRODUCT_INVERTEX_AEON, 1008 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1009 0x00, 0x00, 0x00, 0x00, 0x00 } 1010 }, { 1011 PCI_VENDOR_HIFN, 1012 PCI_PRODUCT_HIFN_7811, 1013 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1014 0x00, 0x00, 0x00, 0x00, 0x00 } 1015 }, { 1016 /* 1017 * Other vendors share this PCI ID as well, such as 1018 * http://www.powercrypt.com, and obviously they also 1019 * use the same key. 1020 */ 1021 PCI_VENDOR_HIFN, 1022 PCI_PRODUCT_HIFN_7751, 1023 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1024 0x00, 0x00, 0x00, 0x00, 0x00 } 1025 }, 1026}; 1027 1028/* 1029 * Checks to see if crypto is already enabled. If crypto isn't enable, 1030 * "hifn_enable_crypto" is called to enable it. The check is important, 1031 * as enabling crypto twice will lock the board. 1032 */ 1033static int 1034hifn_enable_crypto(struct hifn_softc *sc) 1035{ 1036 u_int32_t dmacfg, ramcfg, encl, addr, i; 1037 char *offtbl = NULL; 1038 1039 for (i = 0; i < sizeof(pci2id)/sizeof(pci2id[0]); i++) { 1040 if (pci2id[i].pci_vendor == pci_get_vendor(sc->sc_dev) && 1041 pci2id[i].pci_prod == pci_get_device(sc->sc_dev)) { 1042 offtbl = pci2id[i].card_id; 1043 break; 1044 } 1045 } 1046 if (offtbl == NULL) { 1047 device_printf(sc->sc_dev, "Unknown card!\n"); 1048 return (1); 1049 } 1050 1051 ramcfg = READ_REG_0(sc, HIFN_0_PUCNFG); 1052 dmacfg = READ_REG_1(sc, HIFN_1_DMA_CNFG); 1053 1054 /* 1055 * The RAM config register's encrypt level bit needs to be set before 1056 * every read performed on the encryption level register. 1057 */ 1058 WRITE_REG_0(sc, HIFN_0_PUCNFG, ramcfg | HIFN_PUCNFG_CHIPID); 1059 1060 encl = READ_REG_0(sc, HIFN_0_PUSTAT) & HIFN_PUSTAT_CHIPENA; 1061 1062 /* 1063 * Make sure we don't re-unlock. Two unlocks kills chip until the 1064 * next reboot. 1065 */ 1066 if (encl == HIFN_PUSTAT_ENA_1 || encl == HIFN_PUSTAT_ENA_2) { 1067#ifdef HIFN_DEBUG 1068 if (hifn_debug) 1069 device_printf(sc->sc_dev, 1070 "Strong crypto already enabled!\n"); 1071#endif 1072 goto report; 1073 } 1074 1075 if (encl != 0 && encl != HIFN_PUSTAT_ENA_0) { 1076#ifdef HIFN_DEBUG 1077 if (hifn_debug) 1078 device_printf(sc->sc_dev, 1079 "Unknown encryption level 0x%x\n", encl); 1080#endif 1081 return 1; 1082 } 1083 1084 WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_UNLOCK | 1085 HIFN_DMACNFG_MSTRESET | HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE); 1086 DELAY(1000); 1087 addr = READ_REG_1(sc, HIFN_UNLOCK_SECRET1); 1088 DELAY(1000); 1089 WRITE_REG_1(sc, HIFN_UNLOCK_SECRET2, 0); 1090 DELAY(1000); 1091 1092 for (i = 0; i <= 12; i++) { 1093 addr = hifn_next_signature(addr, offtbl[i] + 0x101); 1094 WRITE_REG_1(sc, HIFN_UNLOCK_SECRET2, addr); 1095 1096 DELAY(1000); 1097 } 1098 1099 WRITE_REG_0(sc, HIFN_0_PUCNFG, ramcfg | HIFN_PUCNFG_CHIPID); 1100 encl = READ_REG_0(sc, HIFN_0_PUSTAT) & HIFN_PUSTAT_CHIPENA; 1101 1102#ifdef HIFN_DEBUG 1103 if (hifn_debug) { 1104 if (encl != HIFN_PUSTAT_ENA_1 && encl != HIFN_PUSTAT_ENA_2) 1105 device_printf(sc->sc_dev, "Engine is permanently " 1106 "locked until next system reset!\n"); 1107 else 1108 device_printf(sc->sc_dev, "Engine enabled " 1109 "successfully!\n"); 1110 } 1111#endif 1112 1113report: 1114 WRITE_REG_0(sc, HIFN_0_PUCNFG, ramcfg); 1115 WRITE_REG_1(sc, HIFN_1_DMA_CNFG, dmacfg); 1116 1117 switch (encl) { 1118 case HIFN_PUSTAT_ENA_1: 1119 case HIFN_PUSTAT_ENA_2: 1120 break; 1121 case HIFN_PUSTAT_ENA_0: 1122 default: 1123 device_printf(sc->sc_dev, "disabled"); 1124 break; 1125 } 1126 1127 return 0; 1128} 1129 1130/* 1131 * Give initial values to the registers listed in the "Register Space" 1132 * section of the HIFN Software Development reference manual. 1133 */ 1134static void 1135hifn_init_pci_registers(struct hifn_softc *sc) 1136{ 1137 /* write fixed values needed by the Initialization registers */ 1138 WRITE_REG_0(sc, HIFN_0_PUCTRL, HIFN_PUCTRL_DMAENA); 1139 WRITE_REG_0(sc, HIFN_0_FIFOCNFG, HIFN_FIFOCNFG_THRESHOLD); 1140 WRITE_REG_0(sc, HIFN_0_PUIER, HIFN_PUIER_DSTOVER); 1141 1142 /* write all 4 ring address registers */ 1143 WRITE_REG_1(sc, HIFN_1_DMA_CRAR, sc->sc_dma_physaddr + 1144 offsetof(struct hifn_dma, cmdr[0])); 1145 WRITE_REG_1(sc, HIFN_1_DMA_SRAR, sc->sc_dma_physaddr + 1146 offsetof(struct hifn_dma, srcr[0])); 1147 WRITE_REG_1(sc, HIFN_1_DMA_DRAR, sc->sc_dma_physaddr + 1148 offsetof(struct hifn_dma, dstr[0])); 1149 WRITE_REG_1(sc, HIFN_1_DMA_RRAR, sc->sc_dma_physaddr + 1150 offsetof(struct hifn_dma, resr[0])); 1151 1152 DELAY(2000); 1153 1154 /* write status register */ 1155 WRITE_REG_1(sc, HIFN_1_DMA_CSR, 1156 HIFN_DMACSR_D_CTRL_DIS | HIFN_DMACSR_R_CTRL_DIS | 1157 HIFN_DMACSR_S_CTRL_DIS | HIFN_DMACSR_C_CTRL_DIS | 1158 HIFN_DMACSR_D_ABORT | HIFN_DMACSR_D_DONE | HIFN_DMACSR_D_LAST | 1159 HIFN_DMACSR_D_WAIT | HIFN_DMACSR_D_OVER | 1160 HIFN_DMACSR_R_ABORT | HIFN_DMACSR_R_DONE | HIFN_DMACSR_R_LAST | 1161 HIFN_DMACSR_R_WAIT | HIFN_DMACSR_R_OVER | 1162 HIFN_DMACSR_S_ABORT | HIFN_DMACSR_S_DONE | HIFN_DMACSR_S_LAST | 1163 HIFN_DMACSR_S_WAIT | 1164 HIFN_DMACSR_C_ABORT | HIFN_DMACSR_C_DONE | HIFN_DMACSR_C_LAST | 1165 HIFN_DMACSR_C_WAIT | 1166 HIFN_DMACSR_ENGINE | 1167 ((sc->sc_flags & HIFN_HAS_PUBLIC) ? 1168 HIFN_DMACSR_PUBDONE : 0) | 1169 ((sc->sc_flags & HIFN_IS_7811) ? 1170 HIFN_DMACSR_ILLW | HIFN_DMACSR_ILLR : 0)); 1171 1172 sc->sc_d_busy = sc->sc_r_busy = sc->sc_s_busy = sc->sc_c_busy = 0; 1173 sc->sc_dmaier |= HIFN_DMAIER_R_DONE | HIFN_DMAIER_C_ABORT | 1174 HIFN_DMAIER_D_OVER | HIFN_DMAIER_R_OVER | 1175 HIFN_DMAIER_S_ABORT | HIFN_DMAIER_D_ABORT | HIFN_DMAIER_R_ABORT | 1176 ((sc->sc_flags & HIFN_IS_7811) ? 1177 HIFN_DMAIER_ILLW | HIFN_DMAIER_ILLR : 0); 1178 sc->sc_dmaier &= ~HIFN_DMAIER_C_WAIT; 1179 WRITE_REG_1(sc, HIFN_1_DMA_IER, sc->sc_dmaier); 1180 1181 1182 if (sc->sc_flags & HIFN_IS_7956) { 1183 u_int32_t pll; 1184 1185 WRITE_REG_0(sc, HIFN_0_PUCNFG, HIFN_PUCNFG_COMPSING | 1186 HIFN_PUCNFG_TCALLPHASES | 1187 HIFN_PUCNFG_TCDRVTOTEM | HIFN_PUCNFG_BUS32); 1188 1189 /* turn off the clocks and insure bypass is set */ 1190 pll = READ_REG_1(sc, HIFN_1_PLL); 1191 pll = (pll &~ (HIFN_PLL_PK_CLK_SEL | HIFN_PLL_PE_CLK_SEL)) 1192 | HIFN_PLL_BP; 1193 WRITE_REG_1(sc, HIFN_1_PLL, pll); 1194 DELAY(10*1000); /* 10ms */ 1195 /* change configuration */ 1196 pll = (pll &~ HIFN_PLL_CONFIG) | sc->sc_pllconfig; 1197 WRITE_REG_1(sc, HIFN_1_PLL, pll); 1198 DELAY(10*1000); /* 10ms */ 1199 /* disable bypass */ 1200 pll &= ~HIFN_PLL_BP; 1201 WRITE_REG_1(sc, HIFN_1_PLL, pll); 1202 /* enable clocks with new configuration */ 1203 pll |= HIFN_PLL_PK_CLK_SEL | HIFN_PLL_PE_CLK_SEL; 1204 WRITE_REG_1(sc, HIFN_1_PLL, pll); 1205 } else { 1206 WRITE_REG_0(sc, HIFN_0_PUCNFG, HIFN_PUCNFG_COMPSING | 1207 HIFN_PUCNFG_DRFR_128 | HIFN_PUCNFG_TCALLPHASES | 1208 HIFN_PUCNFG_TCDRVTOTEM | HIFN_PUCNFG_BUS32 | 1209 (sc->sc_drammodel ? HIFN_PUCNFG_DRAM : HIFN_PUCNFG_SRAM)); 1210 } 1211 1212 WRITE_REG_0(sc, HIFN_0_PUISR, HIFN_PUISR_DSTOVER); 1213 WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET | 1214 HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE | HIFN_DMACNFG_LAST | 1215 ((HIFN_POLL_FREQUENCY << 16 ) & HIFN_DMACNFG_POLLFREQ) | 1216 ((HIFN_POLL_SCALAR << 8) & HIFN_DMACNFG_POLLINVAL)); 1217} 1218 1219/* 1220 * The maximum number of sessions supported by the card 1221 * is dependent on the amount of context ram, which 1222 * encryption algorithms are enabled, and how compression 1223 * is configured. This should be configured before this 1224 * routine is called. 1225 */ 1226static void 1227hifn_sessions(struct hifn_softc *sc) 1228{ 1229 u_int32_t pucnfg; 1230 int ctxsize; 1231 1232 pucnfg = READ_REG_0(sc, HIFN_0_PUCNFG); 1233 1234 if (pucnfg & HIFN_PUCNFG_COMPSING) { 1235 if (pucnfg & HIFN_PUCNFG_ENCCNFG) 1236 ctxsize = 128; 1237 else 1238 ctxsize = 512; 1239 /* 1240 * 7955/7956 has internal context memory of 32K 1241 */ 1242 if (sc->sc_flags & HIFN_IS_7956) 1243 sc->sc_maxses = 32768 / ctxsize; 1244 else 1245 sc->sc_maxses = 1 + 1246 ((sc->sc_ramsize - 32768) / ctxsize); 1247 } else 1248 sc->sc_maxses = sc->sc_ramsize / 16384; 1249 1250 if (sc->sc_maxses > 2048) 1251 sc->sc_maxses = 2048; 1252} 1253 1254/* 1255 * Determine ram type (sram or dram). Board should be just out of a reset 1256 * state when this is called. 1257 */ 1258static int 1259hifn_ramtype(struct hifn_softc *sc) 1260{ 1261 u_int8_t data[8], dataexpect[8]; 1262 int i; 1263 1264 for (i = 0; i < sizeof(data); i++) 1265 data[i] = dataexpect[i] = 0x55; 1266 if (hifn_writeramaddr(sc, 0, data)) 1267 return (-1); 1268 if (hifn_readramaddr(sc, 0, data)) 1269 return (-1); 1270 if (bcmp(data, dataexpect, sizeof(data)) != 0) { 1271 sc->sc_drammodel = 1; 1272 return (0); 1273 } 1274 1275 for (i = 0; i < sizeof(data); i++) 1276 data[i] = dataexpect[i] = 0xaa; 1277 if (hifn_writeramaddr(sc, 0, data)) 1278 return (-1); 1279 if (hifn_readramaddr(sc, 0, data)) 1280 return (-1); 1281 if (bcmp(data, dataexpect, sizeof(data)) != 0) { 1282 sc->sc_drammodel = 1; 1283 return (0); 1284 } 1285 1286 return (0); 1287} 1288 1289#define HIFN_SRAM_MAX (32 << 20) 1290#define HIFN_SRAM_STEP_SIZE 16384 1291#define HIFN_SRAM_GRANULARITY (HIFN_SRAM_MAX / HIFN_SRAM_STEP_SIZE) 1292 1293static int 1294hifn_sramsize(struct hifn_softc *sc) 1295{ 1296 u_int32_t a; 1297 u_int8_t data[8]; 1298 u_int8_t dataexpect[sizeof(data)]; 1299 int32_t i; 1300 1301 for (i = 0; i < sizeof(data); i++) 1302 data[i] = dataexpect[i] = i ^ 0x5a; 1303 1304 for (i = HIFN_SRAM_GRANULARITY - 1; i >= 0; i--) { 1305 a = i * HIFN_SRAM_STEP_SIZE; 1306 bcopy(&i, data, sizeof(i)); 1307 hifn_writeramaddr(sc, a, data); 1308 } 1309 1310 for (i = 0; i < HIFN_SRAM_GRANULARITY; i++) { 1311 a = i * HIFN_SRAM_STEP_SIZE; 1312 bcopy(&i, dataexpect, sizeof(i)); 1313 if (hifn_readramaddr(sc, a, data) < 0) 1314 return (0); 1315 if (bcmp(data, dataexpect, sizeof(data)) != 0) 1316 return (0); 1317 sc->sc_ramsize = a + HIFN_SRAM_STEP_SIZE; 1318 } 1319 1320 return (0); 1321} 1322 1323/* 1324 * XXX For dram boards, one should really try all of the 1325 * HIFN_PUCNFG_DSZ_*'s. This just assumes that PUCNFG 1326 * is already set up correctly. 1327 */ 1328static int 1329hifn_dramsize(struct hifn_softc *sc) 1330{ 1331 u_int32_t cnfg; 1332 1333 if (sc->sc_flags & HIFN_IS_7956) { 1334 /* 1335 * 7955/7956 have a fixed internal ram of only 32K. 1336 */ 1337 sc->sc_ramsize = 32768; 1338 } else { 1339 cnfg = READ_REG_0(sc, HIFN_0_PUCNFG) & 1340 HIFN_PUCNFG_DRAMMASK; 1341 sc->sc_ramsize = 1 << ((cnfg >> 13) + 18); 1342 } 1343 return (0); 1344} 1345 1346static void 1347hifn_alloc_slot(struct hifn_softc *sc, int *cmdp, int *srcp, int *dstp, int *resp) 1348{ 1349 struct hifn_dma *dma = sc->sc_dma; 1350 1351 if (dma->cmdi == HIFN_D_CMD_RSIZE) { 1352 dma->cmdi = 0; 1353 dma->cmdr[HIFN_D_CMD_RSIZE].l = htole32(HIFN_D_VALID | 1354 HIFN_D_JUMP | HIFN_D_MASKDONEIRQ); 1355 HIFN_CMDR_SYNC(sc, HIFN_D_CMD_RSIZE, 1356 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1357 } 1358 *cmdp = dma->cmdi++; 1359 dma->cmdk = dma->cmdi; 1360 1361 if (dma->srci == HIFN_D_SRC_RSIZE) { 1362 dma->srci = 0; 1363 dma->srcr[HIFN_D_SRC_RSIZE].l = htole32(HIFN_D_VALID | 1364 HIFN_D_JUMP | HIFN_D_MASKDONEIRQ); 1365 HIFN_SRCR_SYNC(sc, HIFN_D_SRC_RSIZE, 1366 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1367 } 1368 *srcp = dma->srci++; 1369 dma->srck = dma->srci; 1370 1371 if (dma->dsti == HIFN_D_DST_RSIZE) { 1372 dma->dsti = 0; 1373 dma->dstr[HIFN_D_DST_RSIZE].l = htole32(HIFN_D_VALID | 1374 HIFN_D_JUMP | HIFN_D_MASKDONEIRQ); 1375 HIFN_DSTR_SYNC(sc, HIFN_D_DST_RSIZE, 1376 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1377 } 1378 *dstp = dma->dsti++; 1379 dma->dstk = dma->dsti; 1380 1381 if (dma->resi == HIFN_D_RES_RSIZE) { 1382 dma->resi = 0; 1383 dma->resr[HIFN_D_RES_RSIZE].l = htole32(HIFN_D_VALID | 1384 HIFN_D_JUMP | HIFN_D_MASKDONEIRQ); 1385 HIFN_RESR_SYNC(sc, HIFN_D_RES_RSIZE, 1386 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1387 } 1388 *resp = dma->resi++; 1389 dma->resk = dma->resi; 1390} 1391 1392static int 1393hifn_writeramaddr(struct hifn_softc *sc, int addr, u_int8_t *data) 1394{ 1395 struct hifn_dma *dma = sc->sc_dma; 1396 hifn_base_command_t wc; 1397 const u_int32_t masks = HIFN_D_VALID | HIFN_D_LAST | HIFN_D_MASKDONEIRQ; 1398 int r, cmdi, resi, srci, dsti; 1399 1400 wc.masks = htole16(3 << 13); 1401 wc.session_num = htole16(addr >> 14); 1402 wc.total_source_count = htole16(8); 1403 wc.total_dest_count = htole16(addr & 0x3fff); 1404 1405 hifn_alloc_slot(sc, &cmdi, &srci, &dsti, &resi); 1406 1407 WRITE_REG_1(sc, HIFN_1_DMA_CSR, 1408 HIFN_DMACSR_C_CTRL_ENA | HIFN_DMACSR_S_CTRL_ENA | 1409 HIFN_DMACSR_D_CTRL_ENA | HIFN_DMACSR_R_CTRL_ENA); 1410 1411 /* build write command */ 1412 bzero(dma->command_bufs[cmdi], HIFN_MAX_COMMAND); 1413 *(hifn_base_command_t *)dma->command_bufs[cmdi] = wc; 1414 bcopy(data, &dma->test_src, sizeof(dma->test_src)); 1415 1416 dma->srcr[srci].p = htole32(sc->sc_dma_physaddr 1417 + offsetof(struct hifn_dma, test_src)); 1418 dma->dstr[dsti].p = htole32(sc->sc_dma_physaddr 1419 + offsetof(struct hifn_dma, test_dst)); 1420 1421 dma->cmdr[cmdi].l = htole32(16 | masks); 1422 dma->srcr[srci].l = htole32(8 | masks); 1423 dma->dstr[dsti].l = htole32(4 | masks); 1424 dma->resr[resi].l = htole32(4 | masks); 1425 1426 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 1427 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1428 1429 for (r = 10000; r >= 0; r--) { 1430 DELAY(10); 1431 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 1432 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1433 if ((dma->resr[resi].l & htole32(HIFN_D_VALID)) == 0) 1434 break; 1435 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 1436 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1437 } 1438 if (r == 0) { 1439 device_printf(sc->sc_dev, "writeramaddr -- " 1440 "result[%d](addr %d) still valid\n", resi, addr); 1441 r = -1; 1442 return (-1); 1443 } else 1444 r = 0; 1445 1446 WRITE_REG_1(sc, HIFN_1_DMA_CSR, 1447 HIFN_DMACSR_C_CTRL_DIS | HIFN_DMACSR_S_CTRL_DIS | 1448 HIFN_DMACSR_D_CTRL_DIS | HIFN_DMACSR_R_CTRL_DIS); 1449 1450 return (r); 1451} 1452 1453static int 1454hifn_readramaddr(struct hifn_softc *sc, int addr, u_int8_t *data) 1455{ 1456 struct hifn_dma *dma = sc->sc_dma; 1457 hifn_base_command_t rc; 1458 const u_int32_t masks = HIFN_D_VALID | HIFN_D_LAST | HIFN_D_MASKDONEIRQ; 1459 int r, cmdi, srci, dsti, resi; 1460 1461 rc.masks = htole16(2 << 13); 1462 rc.session_num = htole16(addr >> 14); 1463 rc.total_source_count = htole16(addr & 0x3fff); 1464 rc.total_dest_count = htole16(8); 1465 1466 hifn_alloc_slot(sc, &cmdi, &srci, &dsti, &resi); 1467 1468 WRITE_REG_1(sc, HIFN_1_DMA_CSR, 1469 HIFN_DMACSR_C_CTRL_ENA | HIFN_DMACSR_S_CTRL_ENA | 1470 HIFN_DMACSR_D_CTRL_ENA | HIFN_DMACSR_R_CTRL_ENA); 1471 1472 bzero(dma->command_bufs[cmdi], HIFN_MAX_COMMAND); 1473 *(hifn_base_command_t *)dma->command_bufs[cmdi] = rc; 1474 1475 dma->srcr[srci].p = htole32(sc->sc_dma_physaddr + 1476 offsetof(struct hifn_dma, test_src)); 1477 dma->test_src = 0; 1478 dma->dstr[dsti].p = htole32(sc->sc_dma_physaddr + 1479 offsetof(struct hifn_dma, test_dst)); 1480 dma->test_dst = 0; 1481 dma->cmdr[cmdi].l = htole32(8 | masks); 1482 dma->srcr[srci].l = htole32(8 | masks); 1483 dma->dstr[dsti].l = htole32(8 | masks); 1484 dma->resr[resi].l = htole32(HIFN_MAX_RESULT | masks); 1485 1486 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 1487 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1488 1489 for (r = 10000; r >= 0; r--) { 1490 DELAY(10); 1491 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 1492 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1493 if ((dma->resr[resi].l & htole32(HIFN_D_VALID)) == 0) 1494 break; 1495 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 1496 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1497 } 1498 if (r == 0) { 1499 device_printf(sc->sc_dev, "readramaddr -- " 1500 "result[%d](addr %d) still valid\n", resi, addr); 1501 r = -1; 1502 } else { 1503 r = 0; 1504 bcopy(&dma->test_dst, data, sizeof(dma->test_dst)); 1505 } 1506 1507 WRITE_REG_1(sc, HIFN_1_DMA_CSR, 1508 HIFN_DMACSR_C_CTRL_DIS | HIFN_DMACSR_S_CTRL_DIS | 1509 HIFN_DMACSR_D_CTRL_DIS | HIFN_DMACSR_R_CTRL_DIS); 1510 1511 return (r); 1512} 1513 1514/* 1515 * Initialize the descriptor rings. 1516 */ 1517static void 1518hifn_init_dma(struct hifn_softc *sc) 1519{ 1520 struct hifn_dma *dma = sc->sc_dma; 1521 int i; 1522 1523 hifn_set_retry(sc); 1524 1525 /* initialize static pointer values */ 1526 for (i = 0; i < HIFN_D_CMD_RSIZE; i++) 1527 dma->cmdr[i].p = htole32(sc->sc_dma_physaddr + 1528 offsetof(struct hifn_dma, command_bufs[i][0])); 1529 for (i = 0; i < HIFN_D_RES_RSIZE; i++) 1530 dma->resr[i].p = htole32(sc->sc_dma_physaddr + 1531 offsetof(struct hifn_dma, result_bufs[i][0])); 1532 1533 dma->cmdr[HIFN_D_CMD_RSIZE].p = 1534 htole32(sc->sc_dma_physaddr + offsetof(struct hifn_dma, cmdr[0])); 1535 dma->srcr[HIFN_D_SRC_RSIZE].p = 1536 htole32(sc->sc_dma_physaddr + offsetof(struct hifn_dma, srcr[0])); 1537 dma->dstr[HIFN_D_DST_RSIZE].p = 1538 htole32(sc->sc_dma_physaddr + offsetof(struct hifn_dma, dstr[0])); 1539 dma->resr[HIFN_D_RES_RSIZE].p = 1540 htole32(sc->sc_dma_physaddr + offsetof(struct hifn_dma, resr[0])); 1541 1542 dma->cmdu = dma->srcu = dma->dstu = dma->resu = 0; 1543 dma->cmdi = dma->srci = dma->dsti = dma->resi = 0; 1544 dma->cmdk = dma->srck = dma->dstk = dma->resk = 0; 1545} 1546 1547/* 1548 * Writes out the raw command buffer space. Returns the 1549 * command buffer size. 1550 */ 1551static u_int 1552hifn_write_command(struct hifn_command *cmd, u_int8_t *buf) 1553{ 1554 u_int8_t *buf_pos; 1555 hifn_base_command_t *base_cmd; 1556 hifn_mac_command_t *mac_cmd; 1557 hifn_crypt_command_t *cry_cmd; 1558 int using_mac, using_crypt, len, ivlen; 1559 u_int32_t dlen, slen; 1560 1561 buf_pos = buf; 1562 using_mac = cmd->base_masks & HIFN_BASE_CMD_MAC; 1563 using_crypt = cmd->base_masks & HIFN_BASE_CMD_CRYPT; 1564 1565 base_cmd = (hifn_base_command_t *)buf_pos; 1566 base_cmd->masks = htole16(cmd->base_masks); 1567 slen = cmd->src_mapsize; 1568 if (cmd->sloplen) 1569 dlen = cmd->dst_mapsize - cmd->sloplen + sizeof(u_int32_t); 1570 else 1571 dlen = cmd->dst_mapsize; 1572 base_cmd->total_source_count = htole16(slen & HIFN_BASE_CMD_LENMASK_LO); 1573 base_cmd->total_dest_count = htole16(dlen & HIFN_BASE_CMD_LENMASK_LO); 1574 dlen >>= 16; 1575 slen >>= 16; 1576 base_cmd->session_num = htole16( 1577 ((slen << HIFN_BASE_CMD_SRCLEN_S) & HIFN_BASE_CMD_SRCLEN_M) | 1578 ((dlen << HIFN_BASE_CMD_DSTLEN_S) & HIFN_BASE_CMD_DSTLEN_M)); 1579 buf_pos += sizeof(hifn_base_command_t); 1580 1581 if (using_mac) { 1582 mac_cmd = (hifn_mac_command_t *)buf_pos; 1583 dlen = cmd->maccrd->crd_len; 1584 mac_cmd->source_count = htole16(dlen & 0xffff); 1585 dlen >>= 16; 1586 mac_cmd->masks = htole16(cmd->mac_masks | 1587 ((dlen << HIFN_MAC_CMD_SRCLEN_S) & HIFN_MAC_CMD_SRCLEN_M)); 1588 mac_cmd->header_skip = htole16(cmd->maccrd->crd_skip); 1589 mac_cmd->reserved = 0; 1590 buf_pos += sizeof(hifn_mac_command_t); 1591 } 1592 1593 if (using_crypt) { 1594 cry_cmd = (hifn_crypt_command_t *)buf_pos; 1595 dlen = cmd->enccrd->crd_len; 1596 cry_cmd->source_count = htole16(dlen & 0xffff); 1597 dlen >>= 16; 1598 cry_cmd->masks = htole16(cmd->cry_masks | 1599 ((dlen << HIFN_CRYPT_CMD_SRCLEN_S) & HIFN_CRYPT_CMD_SRCLEN_M)); 1600 cry_cmd->header_skip = htole16(cmd->enccrd->crd_skip); 1601 cry_cmd->reserved = 0; 1602 buf_pos += sizeof(hifn_crypt_command_t); 1603 } 1604 1605 if (using_mac && cmd->mac_masks & HIFN_MAC_CMD_NEW_KEY) { 1606 bcopy(cmd->mac, buf_pos, HIFN_MAC_KEY_LENGTH); 1607 buf_pos += HIFN_MAC_KEY_LENGTH; 1608 } 1609 1610 if (using_crypt && cmd->cry_masks & HIFN_CRYPT_CMD_NEW_KEY) { 1611 switch (cmd->cry_masks & HIFN_CRYPT_CMD_ALG_MASK) { 1612 case HIFN_CRYPT_CMD_ALG_3DES: 1613 bcopy(cmd->ck, buf_pos, HIFN_3DES_KEY_LENGTH); 1614 buf_pos += HIFN_3DES_KEY_LENGTH; 1615 break; 1616 case HIFN_CRYPT_CMD_ALG_DES: 1617 bcopy(cmd->ck, buf_pos, HIFN_DES_KEY_LENGTH); 1618 buf_pos += HIFN_DES_KEY_LENGTH; 1619 break; 1620 case HIFN_CRYPT_CMD_ALG_RC4: 1621 len = 256; 1622 do { 1623 int clen; 1624 1625 clen = MIN(cmd->cklen, len); 1626 bcopy(cmd->ck, buf_pos, clen); 1627 len -= clen; 1628 buf_pos += clen; 1629 } while (len > 0); 1630 bzero(buf_pos, 4); 1631 buf_pos += 4; 1632 break; 1633 case HIFN_CRYPT_CMD_ALG_AES: 1634 /* 1635 * AES keys are variable 128, 192 and 1636 * 256 bits (16, 24 and 32 bytes). 1637 */ 1638 bcopy(cmd->ck, buf_pos, cmd->cklen); 1639 buf_pos += cmd->cklen; 1640 break; 1641 } 1642 } 1643 1644 if (using_crypt && cmd->cry_masks & HIFN_CRYPT_CMD_NEW_IV) { 1645 switch (cmd->cry_masks & HIFN_CRYPT_CMD_ALG_MASK) { 1646 case HIFN_CRYPT_CMD_ALG_AES: 1647 ivlen = HIFN_AES_IV_LENGTH; 1648 break; 1649 default: 1650 ivlen = HIFN_IV_LENGTH; 1651 break; 1652 } 1653 bcopy(cmd->iv, buf_pos, ivlen); 1654 buf_pos += ivlen; 1655 } 1656 1657 if ((cmd->base_masks & (HIFN_BASE_CMD_MAC|HIFN_BASE_CMD_CRYPT)) == 0) { 1658 bzero(buf_pos, 8); 1659 buf_pos += 8; 1660 } 1661 1662 return (buf_pos - buf); 1663} 1664 1665static int 1666hifn_dmamap_aligned(struct hifn_operand *op) 1667{ 1668 int i; 1669 1670 for (i = 0; i < op->nsegs; i++) { 1671 if (op->segs[i].ds_addr & 3) 1672 return (0); 1673 if ((i != (op->nsegs - 1)) && (op->segs[i].ds_len & 3)) 1674 return (0); 1675 } 1676 return (1); 1677} 1678 1679static int 1680hifn_dmamap_load_dst(struct hifn_softc *sc, struct hifn_command *cmd) 1681{ 1682 struct hifn_dma *dma = sc->sc_dma; 1683 struct hifn_operand *dst = &cmd->dst; 1684 u_int32_t p, l; 1685 int idx, used = 0, i; 1686 1687 idx = dma->dsti; 1688 for (i = 0; i < dst->nsegs - 1; i++) { 1689 dma->dstr[idx].p = htole32(dst->segs[i].ds_addr); 1690 dma->dstr[idx].l = htole32(HIFN_D_VALID | 1691 HIFN_D_MASKDONEIRQ | dst->segs[i].ds_len); 1692 HIFN_DSTR_SYNC(sc, idx, 1693 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1694 used++; 1695 1696 if (++idx == HIFN_D_DST_RSIZE) { 1697 dma->dstr[idx].l = htole32(HIFN_D_VALID | 1698 HIFN_D_JUMP | HIFN_D_MASKDONEIRQ); 1699 HIFN_DSTR_SYNC(sc, idx, 1700 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1701 idx = 0; 1702 } 1703 } 1704 1705 if (cmd->sloplen == 0) { 1706 p = dst->segs[i].ds_addr; 1707 l = HIFN_D_VALID | HIFN_D_MASKDONEIRQ | HIFN_D_LAST | 1708 dst->segs[i].ds_len; 1709 } else { 1710 p = sc->sc_dma_physaddr + 1711 offsetof(struct hifn_dma, slop[cmd->slopidx]); 1712 l = HIFN_D_VALID | HIFN_D_MASKDONEIRQ | HIFN_D_LAST | 1713 sizeof(u_int32_t); 1714 1715 if ((dst->segs[i].ds_len - cmd->sloplen) != 0) { 1716 dma->dstr[idx].p = htole32(dst->segs[i].ds_addr); 1717 dma->dstr[idx].l = htole32(HIFN_D_VALID | 1718 HIFN_D_MASKDONEIRQ | 1719 (dst->segs[i].ds_len - cmd->sloplen)); 1720 HIFN_DSTR_SYNC(sc, idx, 1721 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1722 used++; 1723 1724 if (++idx == HIFN_D_DST_RSIZE) { 1725 dma->dstr[idx].l = htole32(HIFN_D_VALID | 1726 HIFN_D_JUMP | HIFN_D_MASKDONEIRQ); 1727 HIFN_DSTR_SYNC(sc, idx, 1728 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1729 idx = 0; 1730 } 1731 } 1732 } 1733 dma->dstr[idx].p = htole32(p); 1734 dma->dstr[idx].l = htole32(l); 1735 HIFN_DSTR_SYNC(sc, idx, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1736 used++; 1737 1738 if (++idx == HIFN_D_DST_RSIZE) { 1739 dma->dstr[idx].l = htole32(HIFN_D_VALID | HIFN_D_JUMP | 1740 HIFN_D_MASKDONEIRQ); 1741 HIFN_DSTR_SYNC(sc, idx, 1742 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1743 idx = 0; 1744 } 1745 1746 dma->dsti = idx; 1747 dma->dstu += used; 1748 return (idx); 1749} 1750 1751static int 1752hifn_dmamap_load_src(struct hifn_softc *sc, struct hifn_command *cmd) 1753{ 1754 struct hifn_dma *dma = sc->sc_dma; 1755 struct hifn_operand *src = &cmd->src; 1756 int idx, i; 1757 u_int32_t last = 0; 1758 1759 idx = dma->srci; 1760 for (i = 0; i < src->nsegs; i++) { 1761 if (i == src->nsegs - 1) 1762 last = HIFN_D_LAST; 1763 1764 dma->srcr[idx].p = htole32(src->segs[i].ds_addr); 1765 dma->srcr[idx].l = htole32(src->segs[i].ds_len | 1766 HIFN_D_VALID | HIFN_D_MASKDONEIRQ | last); 1767 HIFN_SRCR_SYNC(sc, idx, 1768 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1769 1770 if (++idx == HIFN_D_SRC_RSIZE) { 1771 dma->srcr[idx].l = htole32(HIFN_D_VALID | 1772 HIFN_D_JUMP | HIFN_D_MASKDONEIRQ); 1773 HIFN_SRCR_SYNC(sc, HIFN_D_SRC_RSIZE, 1774 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1775 idx = 0; 1776 } 1777 } 1778 dma->srci = idx; 1779 dma->srcu += src->nsegs; 1780 return (idx); 1781} 1782 1783static void 1784hifn_op_cb(void* arg, bus_dma_segment_t *seg, int nsegs, bus_size_t mapsize, int error) 1785{ 1786 struct hifn_operand *op = arg; 1787 1788 KASSERT(nsegs <= MAX_SCATTER, 1789 ("hifn_op_cb: too many DMA segments (%u > %u) " 1790 "returned when mapping operand", nsegs, MAX_SCATTER)); 1791 op->mapsize = mapsize; 1792 op->nsegs = nsegs; 1793 bcopy(seg, op->segs, nsegs * sizeof (seg[0])); 1794} 1795 1796static int 1797hifn_crypto( 1798 struct hifn_softc *sc, 1799 struct hifn_command *cmd, 1800 struct cryptop *crp, 1801 int hint) 1802{ 1803 struct hifn_dma *dma = sc->sc_dma; 1804 u_int32_t cmdlen; 1805 int cmdi, resi, err = 0; 1806 1807 /* 1808 * need 1 cmd, and 1 res 1809 * 1810 * NB: check this first since it's easy. 1811 */ 1812 HIFN_LOCK(sc); 1813 if ((dma->cmdu + 1) > HIFN_D_CMD_RSIZE || 1814 (dma->resu + 1) > HIFN_D_RES_RSIZE) { 1815#ifdef HIFN_DEBUG 1816 if (hifn_debug) { 1817 device_printf(sc->sc_dev, 1818 "cmd/result exhaustion, cmdu %u resu %u\n", 1819 dma->cmdu, dma->resu); 1820 } 1821#endif 1822 hifnstats.hst_nomem_cr++; 1823 HIFN_UNLOCK(sc); 1824 return (ERESTART); 1825 } 1826 1827 if (bus_dmamap_create(sc->sc_dmat, BUS_DMA_NOWAIT, &cmd->src_map)) { 1828 hifnstats.hst_nomem_map++; 1829 HIFN_UNLOCK(sc); 1830 return (ENOMEM); 1831 } 1832 1833 if (crp->crp_flags & CRYPTO_F_IMBUF) { 1834 if (bus_dmamap_load_mbuf(sc->sc_dmat, cmd->src_map, 1835 cmd->src_m, hifn_op_cb, &cmd->src, BUS_DMA_NOWAIT)) { 1836 hifnstats.hst_nomem_load++; 1837 err = ENOMEM; 1838 goto err_srcmap1; 1839 } 1840 } else if (crp->crp_flags & CRYPTO_F_IOV) { 1841 if (bus_dmamap_load_uio(sc->sc_dmat, cmd->src_map, 1842 cmd->src_io, hifn_op_cb, &cmd->src, BUS_DMA_NOWAIT)) { 1843 hifnstats.hst_nomem_load++; 1844 err = ENOMEM; 1845 goto err_srcmap1; 1846 } 1847 } else { 1848 err = EINVAL; 1849 goto err_srcmap1; 1850 } 1851 1852 if (hifn_dmamap_aligned(&cmd->src)) { 1853 cmd->sloplen = cmd->src_mapsize & 3; 1854 cmd->dst = cmd->src; 1855 } else { 1856 if (crp->crp_flags & CRYPTO_F_IOV) { 1857 err = EINVAL; 1858 goto err_srcmap; 1859 } else if (crp->crp_flags & CRYPTO_F_IMBUF) { 1860 int totlen, len; 1861 struct mbuf *m, *m0, *mlast; 1862 1863 KASSERT(cmd->dst_m == cmd->src_m, 1864 ("hifn_crypto: dst_m initialized improperly")); 1865 hifnstats.hst_unaligned++; 1866 /* 1867 * Source is not aligned on a longword boundary. 1868 * Copy the data to insure alignment. If we fail 1869 * to allocate mbufs or clusters while doing this 1870 * we return ERESTART so the operation is requeued 1871 * at the crypto later, but only if there are 1872 * ops already posted to the hardware; otherwise we 1873 * have no guarantee that we'll be re-entered. 1874 */ 1875 totlen = cmd->src_mapsize; 1876 if (cmd->src_m->m_flags & M_PKTHDR) { 1877 len = MHLEN; 1878 MGETHDR(m0, M_DONTWAIT, MT_DATA); 1879 if (m0 && !m_dup_pkthdr(m0, cmd->src_m, M_DONTWAIT)) { 1880 m_free(m0); 1881 m0 = NULL; 1882 } 1883 } else { 1884 len = MLEN; 1885 MGET(m0, M_DONTWAIT, MT_DATA); 1886 } 1887 if (m0 == NULL) { 1888 hifnstats.hst_nomem_mbuf++; 1889 err = dma->cmdu ? ERESTART : ENOMEM; 1890 goto err_srcmap; 1891 } 1892 if (totlen >= MINCLSIZE) { 1893 MCLGET(m0, M_DONTWAIT); 1894 if ((m0->m_flags & M_EXT) == 0) { 1895 hifnstats.hst_nomem_mcl++; 1896 err = dma->cmdu ? ERESTART : ENOMEM; 1897 m_freem(m0); 1898 goto err_srcmap; 1899 } 1900 len = MCLBYTES; 1901 } 1902 totlen -= len; 1903 m0->m_pkthdr.len = m0->m_len = len; 1904 mlast = m0; 1905 1906 while (totlen > 0) { 1907 MGET(m, M_DONTWAIT, MT_DATA); 1908 if (m == NULL) { 1909 hifnstats.hst_nomem_mbuf++; 1910 err = dma->cmdu ? ERESTART : ENOMEM; 1911 m_freem(m0); 1912 goto err_srcmap; 1913 } 1914 len = MLEN; 1915 if (totlen >= MINCLSIZE) { 1916 MCLGET(m, M_DONTWAIT); 1917 if ((m->m_flags & M_EXT) == 0) { 1918 hifnstats.hst_nomem_mcl++; 1919 err = dma->cmdu ? ERESTART : ENOMEM; 1920 mlast->m_next = m; 1921 m_freem(m0); 1922 goto err_srcmap; 1923 } 1924 len = MCLBYTES; 1925 } 1926 1927 m->m_len = len; 1928 m0->m_pkthdr.len += len; 1929 totlen -= len; 1930 1931 mlast->m_next = m; 1932 mlast = m; 1933 } 1934 cmd->dst_m = m0; 1935 } 1936 } 1937 1938 if (cmd->dst_map == NULL) { 1939 if (bus_dmamap_create(sc->sc_dmat, BUS_DMA_NOWAIT, &cmd->dst_map)) { 1940 hifnstats.hst_nomem_map++; 1941 err = ENOMEM; 1942 goto err_srcmap; 1943 } 1944 if (crp->crp_flags & CRYPTO_F_IMBUF) { 1945 if (bus_dmamap_load_mbuf(sc->sc_dmat, cmd->dst_map, 1946 cmd->dst_m, hifn_op_cb, &cmd->dst, BUS_DMA_NOWAIT)) { 1947 hifnstats.hst_nomem_map++; 1948 err = ENOMEM; 1949 goto err_dstmap1; 1950 } 1951 } else if (crp->crp_flags & CRYPTO_F_IOV) { 1952 if (bus_dmamap_load_uio(sc->sc_dmat, cmd->dst_map, 1953 cmd->dst_io, hifn_op_cb, &cmd->dst, BUS_DMA_NOWAIT)) { 1954 hifnstats.hst_nomem_load++; 1955 err = ENOMEM; 1956 goto err_dstmap1; 1957 } 1958 } 1959 } 1960 1961#ifdef HIFN_DEBUG 1962 if (hifn_debug) { 1963 device_printf(sc->sc_dev, 1964 "Entering cmd: stat %8x ien %8x u %d/%d/%d/%d n %d/%d\n", 1965 READ_REG_1(sc, HIFN_1_DMA_CSR), 1966 READ_REG_1(sc, HIFN_1_DMA_IER), 1967 dma->cmdu, dma->srcu, dma->dstu, dma->resu, 1968 cmd->src_nsegs, cmd->dst_nsegs); 1969 } 1970#endif 1971 1972 if (cmd->src_map == cmd->dst_map) { 1973 bus_dmamap_sync(sc->sc_dmat, cmd->src_map, 1974 BUS_DMASYNC_PREWRITE|BUS_DMASYNC_PREREAD); 1975 } else { 1976 bus_dmamap_sync(sc->sc_dmat, cmd->src_map, 1977 BUS_DMASYNC_PREWRITE); 1978 bus_dmamap_sync(sc->sc_dmat, cmd->dst_map, 1979 BUS_DMASYNC_PREREAD); 1980 } 1981 1982 /* 1983 * need N src, and N dst 1984 */ 1985 if ((dma->srcu + cmd->src_nsegs) > HIFN_D_SRC_RSIZE || 1986 (dma->dstu + cmd->dst_nsegs + 1) > HIFN_D_DST_RSIZE) { 1987#ifdef HIFN_DEBUG 1988 if (hifn_debug) { 1989 device_printf(sc->sc_dev, 1990 "src/dst exhaustion, srcu %u+%u dstu %u+%u\n", 1991 dma->srcu, cmd->src_nsegs, 1992 dma->dstu, cmd->dst_nsegs); 1993 } 1994#endif 1995 hifnstats.hst_nomem_sd++; 1996 err = ERESTART; 1997 goto err_dstmap; 1998 } 1999 2000 if (dma->cmdi == HIFN_D_CMD_RSIZE) { 2001 dma->cmdi = 0; 2002 dma->cmdr[HIFN_D_CMD_RSIZE].l = htole32(HIFN_D_VALID | 2003 HIFN_D_JUMP | HIFN_D_MASKDONEIRQ); 2004 HIFN_CMDR_SYNC(sc, HIFN_D_CMD_RSIZE, 2005 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 2006 } 2007 cmdi = dma->cmdi++; 2008 cmdlen = hifn_write_command(cmd, dma->command_bufs[cmdi]); 2009 HIFN_CMD_SYNC(sc, cmdi, BUS_DMASYNC_PREWRITE); 2010 2011 /* .p for command/result already set */ 2012 dma->cmdr[cmdi].l = htole32(cmdlen | HIFN_D_VALID | HIFN_D_LAST | 2013 HIFN_D_MASKDONEIRQ); 2014 HIFN_CMDR_SYNC(sc, cmdi, 2015 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 2016 dma->cmdu++; 2017 if (sc->sc_c_busy == 0) { 2018 WRITE_REG_1(sc, HIFN_1_DMA_CSR, HIFN_DMACSR_C_CTRL_ENA); 2019 sc->sc_c_busy = 1; 2020 } 2021 2022 /* 2023 * We don't worry about missing an interrupt (which a "command wait" 2024 * interrupt salvages us from), unless there is more than one command 2025 * in the queue. 2026 */ 2027 if (dma->cmdu > 1) { 2028 sc->sc_dmaier |= HIFN_DMAIER_C_WAIT; 2029 WRITE_REG_1(sc, HIFN_1_DMA_IER, sc->sc_dmaier); 2030 } 2031 2032 hifnstats.hst_ipackets++; 2033 hifnstats.hst_ibytes += cmd->src_mapsize; 2034 2035 hifn_dmamap_load_src(sc, cmd); 2036 if (sc->sc_s_busy == 0) { 2037 WRITE_REG_1(sc, HIFN_1_DMA_CSR, HIFN_DMACSR_S_CTRL_ENA); 2038 sc->sc_s_busy = 1; 2039 } 2040 2041 /* 2042 * Unlike other descriptors, we don't mask done interrupt from 2043 * result descriptor. 2044 */ 2045#ifdef HIFN_DEBUG 2046 if (hifn_debug) 2047 printf("load res\n"); 2048#endif 2049 if (dma->resi == HIFN_D_RES_RSIZE) { 2050 dma->resi = 0; 2051 dma->resr[HIFN_D_RES_RSIZE].l = htole32(HIFN_D_VALID | 2052 HIFN_D_JUMP | HIFN_D_MASKDONEIRQ); 2053 HIFN_RESR_SYNC(sc, HIFN_D_RES_RSIZE, 2054 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2055 } 2056 resi = dma->resi++; 2057 KASSERT(dma->hifn_commands[resi] == NULL, 2058 ("hifn_crypto: command slot %u busy", resi)); 2059 dma->hifn_commands[resi] = cmd; 2060 HIFN_RES_SYNC(sc, resi, BUS_DMASYNC_PREREAD); 2061 if ((hint & CRYPTO_HINT_MORE) && sc->sc_curbatch < hifn_maxbatch) { 2062 dma->resr[resi].l = htole32(HIFN_MAX_RESULT | 2063 HIFN_D_VALID | HIFN_D_LAST | HIFN_D_MASKDONEIRQ); 2064 sc->sc_curbatch++; 2065 if (sc->sc_curbatch > hifnstats.hst_maxbatch) 2066 hifnstats.hst_maxbatch = sc->sc_curbatch; 2067 hifnstats.hst_totbatch++; 2068 } else { 2069 dma->resr[resi].l = htole32(HIFN_MAX_RESULT | 2070 HIFN_D_VALID | HIFN_D_LAST); 2071 sc->sc_curbatch = 0; 2072 } 2073 HIFN_RESR_SYNC(sc, resi, 2074 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2075 dma->resu++; 2076 if (sc->sc_r_busy == 0) { 2077 WRITE_REG_1(sc, HIFN_1_DMA_CSR, HIFN_DMACSR_R_CTRL_ENA); 2078 sc->sc_r_busy = 1; 2079 } 2080 2081 if (cmd->sloplen) 2082 cmd->slopidx = resi; 2083 2084 hifn_dmamap_load_dst(sc, cmd); 2085 2086 if (sc->sc_d_busy == 0) { 2087 WRITE_REG_1(sc, HIFN_1_DMA_CSR, HIFN_DMACSR_D_CTRL_ENA); 2088 sc->sc_d_busy = 1; 2089 } 2090 2091#ifdef HIFN_DEBUG 2092 if (hifn_debug) { 2093 device_printf(sc->sc_dev, "command: stat %8x ier %8x\n", 2094 READ_REG_1(sc, HIFN_1_DMA_CSR), 2095 READ_REG_1(sc, HIFN_1_DMA_IER)); 2096 } 2097#endif 2098 2099 sc->sc_active = 5; 2100 HIFN_UNLOCK(sc); 2101 KASSERT(err == 0, ("hifn_crypto: success with error %u", err)); 2102 return (err); /* success */ 2103 2104err_dstmap: 2105 if (cmd->src_map != cmd->dst_map) 2106 bus_dmamap_unload(sc->sc_dmat, cmd->dst_map); 2107err_dstmap1: 2108 if (cmd->src_map != cmd->dst_map) 2109 bus_dmamap_destroy(sc->sc_dmat, cmd->dst_map); 2110err_srcmap: 2111 if (crp->crp_flags & CRYPTO_F_IMBUF) { 2112 if (cmd->src_m != cmd->dst_m) 2113 m_freem(cmd->dst_m); 2114 } 2115 bus_dmamap_unload(sc->sc_dmat, cmd->src_map); 2116err_srcmap1: 2117 bus_dmamap_destroy(sc->sc_dmat, cmd->src_map); 2118 HIFN_UNLOCK(sc); 2119 return (err); 2120} 2121 2122static void 2123hifn_tick(void* vsc) 2124{ 2125 struct hifn_softc *sc = vsc; 2126 2127 HIFN_LOCK(sc); 2128 if (sc->sc_active == 0) { 2129 struct hifn_dma *dma = sc->sc_dma; 2130 u_int32_t r = 0; 2131 2132 if (dma->cmdu == 0 && sc->sc_c_busy) { 2133 sc->sc_c_busy = 0; 2134 r |= HIFN_DMACSR_C_CTRL_DIS; 2135 } 2136 if (dma->srcu == 0 && sc->sc_s_busy) { 2137 sc->sc_s_busy = 0; 2138 r |= HIFN_DMACSR_S_CTRL_DIS; 2139 } 2140 if (dma->dstu == 0 && sc->sc_d_busy) { 2141 sc->sc_d_busy = 0; 2142 r |= HIFN_DMACSR_D_CTRL_DIS; 2143 } 2144 if (dma->resu == 0 && sc->sc_r_busy) { 2145 sc->sc_r_busy = 0; 2146 r |= HIFN_DMACSR_R_CTRL_DIS; 2147 } 2148 if (r) 2149 WRITE_REG_1(sc, HIFN_1_DMA_CSR, r); 2150 } else 2151 sc->sc_active--; 2152 HIFN_UNLOCK(sc); 2153 callout_reset(&sc->sc_tickto, hz, hifn_tick, sc); 2154} 2155 2156static void 2157hifn_intr(void *arg) 2158{ 2159 struct hifn_softc *sc = arg; 2160 struct hifn_dma *dma; 2161 u_int32_t dmacsr, restart; 2162 int i, u; 2163 2164 dmacsr = READ_REG_1(sc, HIFN_1_DMA_CSR); 2165 2166 /* Nothing in the DMA unit interrupted */ 2167 if ((dmacsr & sc->sc_dmaier) == 0) 2168 return; 2169 2170 HIFN_LOCK(sc); 2171 2172 dma = sc->sc_dma; 2173 2174#ifdef HIFN_DEBUG 2175 if (hifn_debug) { 2176 device_printf(sc->sc_dev, 2177 "irq: stat %08x ien %08x damier %08x i %d/%d/%d/%d k %d/%d/%d/%d u %d/%d/%d/%d\n", 2178 dmacsr, READ_REG_1(sc, HIFN_1_DMA_IER), sc->sc_dmaier, 2179 dma->cmdi, dma->srci, dma->dsti, dma->resi, 2180 dma->cmdk, dma->srck, dma->dstk, dma->resk, 2181 dma->cmdu, dma->srcu, dma->dstu, dma->resu); 2182 } 2183#endif 2184 2185 WRITE_REG_1(sc, HIFN_1_DMA_CSR, dmacsr & sc->sc_dmaier); 2186 2187 if ((sc->sc_flags & HIFN_HAS_PUBLIC) && 2188 (dmacsr & HIFN_DMACSR_PUBDONE)) 2189 WRITE_REG_1(sc, HIFN_1_PUB_STATUS, 2190 READ_REG_1(sc, HIFN_1_PUB_STATUS) | HIFN_PUBSTS_DONE); 2191 2192 restart = dmacsr & (HIFN_DMACSR_D_OVER | HIFN_DMACSR_R_OVER); 2193 if (restart) 2194 device_printf(sc->sc_dev, "overrun %x\n", dmacsr); 2195 2196 if (sc->sc_flags & HIFN_IS_7811) { 2197 if (dmacsr & HIFN_DMACSR_ILLR) 2198 device_printf(sc->sc_dev, "illegal read\n"); 2199 if (dmacsr & HIFN_DMACSR_ILLW) 2200 device_printf(sc->sc_dev, "illegal write\n"); 2201 } 2202 2203 restart = dmacsr & (HIFN_DMACSR_C_ABORT | HIFN_DMACSR_S_ABORT | 2204 HIFN_DMACSR_D_ABORT | HIFN_DMACSR_R_ABORT); 2205 if (restart) { 2206 device_printf(sc->sc_dev, "abort, resetting.\n"); 2207 hifnstats.hst_abort++; 2208 hifn_abort(sc); 2209 HIFN_UNLOCK(sc); 2210 return; 2211 } 2212 2213 if ((dmacsr & HIFN_DMACSR_C_WAIT) && (dma->cmdu == 0)) { 2214 /* 2215 * If no slots to process and we receive a "waiting on 2216 * command" interrupt, we disable the "waiting on command" 2217 * (by clearing it). 2218 */ 2219 sc->sc_dmaier &= ~HIFN_DMAIER_C_WAIT; 2220 WRITE_REG_1(sc, HIFN_1_DMA_IER, sc->sc_dmaier); 2221 } 2222 2223 /* clear the rings */ 2224 i = dma->resk; u = dma->resu; 2225 while (u != 0) { 2226 HIFN_RESR_SYNC(sc, i, 2227 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 2228 if (dma->resr[i].l & htole32(HIFN_D_VALID)) { 2229 HIFN_RESR_SYNC(sc, i, 2230 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2231 break; 2232 } 2233 2234 if (i != HIFN_D_RES_RSIZE) { 2235 struct hifn_command *cmd; 2236 u_int8_t *macbuf = NULL; 2237 2238 HIFN_RES_SYNC(sc, i, BUS_DMASYNC_POSTREAD); 2239 cmd = dma->hifn_commands[i]; 2240 KASSERT(cmd != NULL, 2241 ("hifn_intr: null command slot %u", i)); 2242 dma->hifn_commands[i] = NULL; 2243 2244 if (cmd->base_masks & HIFN_BASE_CMD_MAC) { 2245 macbuf = dma->result_bufs[i]; 2246 macbuf += 12; 2247 } 2248 2249 hifn_callback(sc, cmd, macbuf); 2250 hifnstats.hst_opackets++; 2251 u--; 2252 } 2253 2254 if (++i == (HIFN_D_RES_RSIZE + 1)) 2255 i = 0; 2256 } 2257 dma->resk = i; dma->resu = u; 2258 2259 i = dma->srck; u = dma->srcu; 2260 while (u != 0) { 2261 if (i == HIFN_D_SRC_RSIZE) 2262 i = 0; 2263 HIFN_SRCR_SYNC(sc, i, 2264 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 2265 if (dma->srcr[i].l & htole32(HIFN_D_VALID)) { 2266 HIFN_SRCR_SYNC(sc, i, 2267 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2268 break; 2269 } 2270 i++, u--; 2271 } 2272 dma->srck = i; dma->srcu = u; 2273 2274 i = dma->cmdk; u = dma->cmdu; 2275 while (u != 0) { 2276 HIFN_CMDR_SYNC(sc, i, 2277 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 2278 if (dma->cmdr[i].l & htole32(HIFN_D_VALID)) { 2279 HIFN_CMDR_SYNC(sc, i, 2280 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2281 break; 2282 } 2283 if (i != HIFN_D_CMD_RSIZE) { 2284 u--; 2285 HIFN_CMD_SYNC(sc, i, BUS_DMASYNC_POSTWRITE); 2286 } 2287 if (++i == (HIFN_D_CMD_RSIZE + 1)) 2288 i = 0; 2289 } 2290 dma->cmdk = i; dma->cmdu = u; 2291 2292 HIFN_UNLOCK(sc); 2293 2294 if (sc->sc_needwakeup) { /* XXX check high watermark */ 2295 int wakeup = sc->sc_needwakeup & (CRYPTO_SYMQ|CRYPTO_ASYMQ); 2296#ifdef HIFN_DEBUG 2297 if (hifn_debug) 2298 device_printf(sc->sc_dev, 2299 "wakeup crypto (%x) u %d/%d/%d/%d\n", 2300 sc->sc_needwakeup, 2301 dma->cmdu, dma->srcu, dma->dstu, dma->resu); 2302#endif 2303 sc->sc_needwakeup &= ~wakeup; 2304 crypto_unblock(sc->sc_cid, wakeup); 2305 } 2306} 2307 2308/* 2309 * Allocate a new 'session' and return an encoded session id. 'sidp' 2310 * contains our registration id, and should contain an encoded session 2311 * id on successful allocation. 2312 */ 2313static int 2314hifn_newsession(void *arg, u_int32_t *sidp, struct cryptoini *cri) 2315{ 2316 struct cryptoini *c; 2317 struct hifn_softc *sc = arg; 2318 int mac = 0, cry = 0, sesn; 2319 struct hifn_session *ses = NULL; 2320 2321 KASSERT(sc != NULL, ("hifn_newsession: null softc")); 2322 if (sidp == NULL || cri == NULL || sc == NULL) 2323 return (EINVAL); 2324 2325 if (sc->sc_sessions == NULL) { 2326 ses = sc->sc_sessions = (struct hifn_session *)malloc( 2327 sizeof(*ses), M_DEVBUF, M_NOWAIT); 2328 if (ses == NULL) 2329 return (ENOMEM); 2330 sesn = 0; 2331 sc->sc_nsessions = 1; 2332 } else { 2333 for (sesn = 0; sesn < sc->sc_nsessions; sesn++) { 2334 if (!sc->sc_sessions[sesn].hs_used) { 2335 ses = &sc->sc_sessions[sesn]; 2336 break; 2337 } 2338 } 2339 2340 if (ses == NULL) { 2341 sesn = sc->sc_nsessions; 2342 ses = (struct hifn_session *)malloc((sesn + 1) * 2343 sizeof(*ses), M_DEVBUF, M_NOWAIT); 2344 if (ses == NULL) 2345 return (ENOMEM); 2346 bcopy(sc->sc_sessions, ses, sesn * sizeof(*ses)); 2347 bzero(sc->sc_sessions, sesn * sizeof(*ses)); 2348 free(sc->sc_sessions, M_DEVBUF); 2349 sc->sc_sessions = ses; 2350 ses = &sc->sc_sessions[sesn]; 2351 sc->sc_nsessions++; 2352 } 2353 } 2354 bzero(ses, sizeof(*ses)); 2355 ses->hs_used = 1; 2356 2357 for (c = cri; c != NULL; c = c->cri_next) { 2358 switch (c->cri_alg) { 2359 case CRYPTO_MD5: 2360 case CRYPTO_SHA1: 2361 case CRYPTO_MD5_HMAC: 2362 case CRYPTO_SHA1_HMAC: 2363 if (mac) 2364 return (EINVAL); 2365 mac = 1; 2366 break; 2367 case CRYPTO_DES_CBC: 2368 case CRYPTO_3DES_CBC: 2369 case CRYPTO_AES_CBC: 2370 /* XXX this may read fewer, does it matter? */ 2371 read_random(ses->hs_iv, 2372 c->cri_alg == CRYPTO_AES_CBC ? 2373 HIFN_AES_IV_LENGTH : HIFN_IV_LENGTH); 2374 /*FALLTHROUGH*/ 2375 case CRYPTO_ARC4: 2376 if (cry) 2377 return (EINVAL); 2378 cry = 1; 2379 break; 2380 default: 2381 return (EINVAL); 2382 } 2383 } 2384 if (mac == 0 && cry == 0) 2385 return (EINVAL); 2386 2387 *sidp = HIFN_SID(device_get_unit(sc->sc_dev), sesn); 2388 2389 return (0); 2390} 2391 2392/* 2393 * Deallocate a session. 2394 * XXX this routine should run a zero'd mac/encrypt key into context ram. 2395 * XXX to blow away any keys already stored there. 2396 */ 2397static int 2398hifn_freesession(void *arg, u_int64_t tid) 2399{ 2400 struct hifn_softc *sc = arg; 2401 int session; 2402 u_int32_t sid = CRYPTO_SESID2LID(tid); 2403 2404 KASSERT(sc != NULL, ("hifn_freesession: null softc")); 2405 if (sc == NULL) 2406 return (EINVAL); 2407 2408 session = HIFN_SESSION(sid); 2409 if (session >= sc->sc_nsessions) 2410 return (EINVAL); 2411 2412 bzero(&sc->sc_sessions[session], sizeof(sc->sc_sessions[session])); 2413 return (0); 2414} 2415 2416static int 2417hifn_process(void *arg, struct cryptop *crp, int hint) 2418{ 2419 struct hifn_softc *sc = arg; 2420 struct hifn_command *cmd = NULL; 2421 int session, err, ivlen; 2422 struct cryptodesc *crd1, *crd2, *maccrd, *enccrd; 2423 2424 if (crp == NULL || crp->crp_callback == NULL) { 2425 hifnstats.hst_invalid++; 2426 return (EINVAL); 2427 } 2428 session = HIFN_SESSION(crp->crp_sid); 2429 2430 if (sc == NULL || session >= sc->sc_nsessions) { 2431 err = EINVAL; 2432 goto errout; 2433 } 2434 2435 cmd = malloc(sizeof(struct hifn_command), M_DEVBUF, M_NOWAIT | M_ZERO); 2436 if (cmd == NULL) { 2437 hifnstats.hst_nomem++; 2438 err = ENOMEM; 2439 goto errout; 2440 } 2441 2442 if (crp->crp_flags & CRYPTO_F_IMBUF) { 2443 cmd->src_m = (struct mbuf *)crp->crp_buf; 2444 cmd->dst_m = (struct mbuf *)crp->crp_buf; 2445 } else if (crp->crp_flags & CRYPTO_F_IOV) { 2446 cmd->src_io = (struct uio *)crp->crp_buf; 2447 cmd->dst_io = (struct uio *)crp->crp_buf; 2448 } else { 2449 err = EINVAL; 2450 goto errout; /* XXX we don't handle contiguous buffers! */ 2451 } 2452 2453 crd1 = crp->crp_desc; 2454 if (crd1 == NULL) { 2455 err = EINVAL; 2456 goto errout; 2457 } 2458 crd2 = crd1->crd_next; 2459 2460 if (crd2 == NULL) { 2461 if (crd1->crd_alg == CRYPTO_MD5_HMAC || 2462 crd1->crd_alg == CRYPTO_SHA1_HMAC || 2463 crd1->crd_alg == CRYPTO_SHA1 || 2464 crd1->crd_alg == CRYPTO_MD5) { 2465 maccrd = crd1; 2466 enccrd = NULL; 2467 } else if (crd1->crd_alg == CRYPTO_DES_CBC || 2468 crd1->crd_alg == CRYPTO_3DES_CBC || 2469 crd1->crd_alg == CRYPTO_AES_CBC || 2470 crd1->crd_alg == CRYPTO_ARC4) { 2471 if ((crd1->crd_flags & CRD_F_ENCRYPT) == 0) 2472 cmd->base_masks |= HIFN_BASE_CMD_DECODE; 2473 maccrd = NULL; 2474 enccrd = crd1; 2475 } else { 2476 err = EINVAL; 2477 goto errout; 2478 } 2479 } else { 2480 if ((crd1->crd_alg == CRYPTO_MD5_HMAC || 2481 crd1->crd_alg == CRYPTO_SHA1_HMAC || 2482 crd1->crd_alg == CRYPTO_MD5 || 2483 crd1->crd_alg == CRYPTO_SHA1) && 2484 (crd2->crd_alg == CRYPTO_DES_CBC || 2485 crd2->crd_alg == CRYPTO_3DES_CBC || 2486 crd2->crd_alg == CRYPTO_AES_CBC || 2487 crd2->crd_alg == CRYPTO_ARC4) && 2488 ((crd2->crd_flags & CRD_F_ENCRYPT) == 0)) { 2489 cmd->base_masks = HIFN_BASE_CMD_DECODE; 2490 maccrd = crd1; 2491 enccrd = crd2; 2492 } else if ((crd1->crd_alg == CRYPTO_DES_CBC || 2493 crd1->crd_alg == CRYPTO_ARC4 || 2494 crd1->crd_alg == CRYPTO_3DES_CBC || 2495 crd1->crd_alg == CRYPTO_AES_CBC) && 2496 (crd2->crd_alg == CRYPTO_MD5_HMAC || 2497 crd2->crd_alg == CRYPTO_SHA1_HMAC || 2498 crd2->crd_alg == CRYPTO_MD5 || 2499 crd2->crd_alg == CRYPTO_SHA1) && 2500 (crd1->crd_flags & CRD_F_ENCRYPT)) { 2501 enccrd = crd1; 2502 maccrd = crd2; 2503 } else { 2504 /* 2505 * We cannot order the 7751 as requested 2506 */ 2507 err = EINVAL; 2508 goto errout; 2509 } 2510 } 2511 2512 if (enccrd) { 2513 cmd->enccrd = enccrd; 2514 cmd->base_masks |= HIFN_BASE_CMD_CRYPT; 2515 switch (enccrd->crd_alg) { 2516 case CRYPTO_ARC4: 2517 cmd->cry_masks |= HIFN_CRYPT_CMD_ALG_RC4; 2518 break; 2519 case CRYPTO_DES_CBC: 2520 cmd->cry_masks |= HIFN_CRYPT_CMD_ALG_DES | 2521 HIFN_CRYPT_CMD_MODE_CBC | 2522 HIFN_CRYPT_CMD_NEW_IV; 2523 break; 2524 case CRYPTO_3DES_CBC: 2525 cmd->cry_masks |= HIFN_CRYPT_CMD_ALG_3DES | 2526 HIFN_CRYPT_CMD_MODE_CBC | 2527 HIFN_CRYPT_CMD_NEW_IV; 2528 break; 2529 case CRYPTO_AES_CBC: 2530 cmd->cry_masks |= HIFN_CRYPT_CMD_ALG_AES | 2531 HIFN_CRYPT_CMD_MODE_CBC | 2532 HIFN_CRYPT_CMD_NEW_IV; 2533 break; 2534 default: 2535 err = EINVAL; 2536 goto errout; 2537 } 2538 if (enccrd->crd_alg != CRYPTO_ARC4) { 2539 ivlen = ((enccrd->crd_alg == CRYPTO_AES_CBC) ? 2540 HIFN_AES_IV_LENGTH : HIFN_IV_LENGTH); 2541 if (enccrd->crd_flags & CRD_F_ENCRYPT) { 2542 if (enccrd->crd_flags & CRD_F_IV_EXPLICIT) 2543 bcopy(enccrd->crd_iv, cmd->iv, ivlen); 2544 else 2545 bcopy(sc->sc_sessions[session].hs_iv, 2546 cmd->iv, ivlen); 2547 2548 if ((enccrd->crd_flags & CRD_F_IV_PRESENT) 2549 == 0) { 2550 if (crp->crp_flags & CRYPTO_F_IMBUF) 2551 m_copyback(cmd->src_m, 2552 enccrd->crd_inject, 2553 ivlen, cmd->iv); 2554 else if (crp->crp_flags & CRYPTO_F_IOV) 2555 cuio_copyback(cmd->src_io, 2556 enccrd->crd_inject, 2557 ivlen, cmd->iv); 2558 } 2559 } else { 2560 if (enccrd->crd_flags & CRD_F_IV_EXPLICIT) 2561 bcopy(enccrd->crd_iv, cmd->iv, ivlen); 2562 else if (crp->crp_flags & CRYPTO_F_IMBUF) 2563 m_copydata(cmd->src_m, 2564 enccrd->crd_inject, ivlen, cmd->iv); 2565 else if (crp->crp_flags & CRYPTO_F_IOV) 2566 cuio_copydata(cmd->src_io, 2567 enccrd->crd_inject, ivlen, cmd->iv); 2568 } 2569 } 2570 2571 if (enccrd->crd_flags & CRD_F_KEY_EXPLICIT) 2572 cmd->cry_masks |= HIFN_CRYPT_CMD_NEW_KEY; 2573 cmd->ck = enccrd->crd_key; 2574 cmd->cklen = enccrd->crd_klen >> 3; 2575 cmd->cry_masks |= HIFN_CRYPT_CMD_NEW_KEY; 2576 2577 /* 2578 * Need to specify the size for the AES key in the masks. 2579 */ 2580 if ((cmd->cry_masks & HIFN_CRYPT_CMD_ALG_MASK) == 2581 HIFN_CRYPT_CMD_ALG_AES) { 2582 switch (cmd->cklen) { 2583 case 16: 2584 cmd->cry_masks |= HIFN_CRYPT_CMD_KSZ_128; 2585 break; 2586 case 24: 2587 cmd->cry_masks |= HIFN_CRYPT_CMD_KSZ_192; 2588 break; 2589 case 32: 2590 cmd->cry_masks |= HIFN_CRYPT_CMD_KSZ_256; 2591 break; 2592 default: 2593 err = EINVAL; 2594 goto errout; 2595 } 2596 } 2597 } 2598 2599 if (maccrd) { 2600 cmd->maccrd = maccrd; 2601 cmd->base_masks |= HIFN_BASE_CMD_MAC; 2602 2603 switch (maccrd->crd_alg) { 2604 case CRYPTO_MD5: 2605 cmd->mac_masks |= HIFN_MAC_CMD_ALG_MD5 | 2606 HIFN_MAC_CMD_RESULT | HIFN_MAC_CMD_MODE_HASH | 2607 HIFN_MAC_CMD_POS_IPSEC; 2608 break; 2609 case CRYPTO_MD5_HMAC: 2610 cmd->mac_masks |= HIFN_MAC_CMD_ALG_MD5 | 2611 HIFN_MAC_CMD_RESULT | HIFN_MAC_CMD_MODE_HMAC | 2612 HIFN_MAC_CMD_POS_IPSEC | HIFN_MAC_CMD_TRUNC; 2613 break; 2614 case CRYPTO_SHA1: 2615 cmd->mac_masks |= HIFN_MAC_CMD_ALG_SHA1 | 2616 HIFN_MAC_CMD_RESULT | HIFN_MAC_CMD_MODE_HASH | 2617 HIFN_MAC_CMD_POS_IPSEC; 2618 break; 2619 case CRYPTO_SHA1_HMAC: 2620 cmd->mac_masks |= HIFN_MAC_CMD_ALG_SHA1 | 2621 HIFN_MAC_CMD_RESULT | HIFN_MAC_CMD_MODE_HMAC | 2622 HIFN_MAC_CMD_POS_IPSEC | HIFN_MAC_CMD_TRUNC; 2623 break; 2624 } 2625 2626 if (maccrd->crd_alg == CRYPTO_SHA1_HMAC || 2627 maccrd->crd_alg == CRYPTO_MD5_HMAC) { 2628 cmd->mac_masks |= HIFN_MAC_CMD_NEW_KEY; 2629 bcopy(maccrd->crd_key, cmd->mac, maccrd->crd_klen >> 3); 2630 bzero(cmd->mac + (maccrd->crd_klen >> 3), 2631 HIFN_MAC_KEY_LENGTH - (maccrd->crd_klen >> 3)); 2632 } 2633 } 2634 2635 cmd->crp = crp; 2636 cmd->session_num = session; 2637 cmd->softc = sc; 2638 2639 err = hifn_crypto(sc, cmd, crp, hint); 2640 if (!err) { 2641 return 0; 2642 } else if (err == ERESTART) { 2643 /* 2644 * There weren't enough resources to dispatch the request 2645 * to the part. Notify the caller so they'll requeue this 2646 * request and resubmit it again soon. 2647 */ 2648#ifdef HIFN_DEBUG 2649 if (hifn_debug) 2650 device_printf(sc->sc_dev, "requeue request\n"); 2651#endif 2652 free(cmd, M_DEVBUF); 2653 sc->sc_needwakeup |= CRYPTO_SYMQ; 2654 return (err); 2655 } 2656 2657errout: 2658 if (cmd != NULL) 2659 free(cmd, M_DEVBUF); 2660 if (err == EINVAL) 2661 hifnstats.hst_invalid++; 2662 else 2663 hifnstats.hst_nomem++; 2664 crp->crp_etype = err; 2665 crypto_done(crp); 2666 return (err); 2667} 2668 2669static void 2670hifn_abort(struct hifn_softc *sc) 2671{ 2672 struct hifn_dma *dma = sc->sc_dma; 2673 struct hifn_command *cmd; 2674 struct cryptop *crp; 2675 int i, u; 2676 2677 i = dma->resk; u = dma->resu; 2678 while (u != 0) { 2679 cmd = dma->hifn_commands[i]; 2680 KASSERT(cmd != NULL, ("hifn_abort: null command slot %u", i)); 2681 dma->hifn_commands[i] = NULL; 2682 crp = cmd->crp; 2683 2684 if ((dma->resr[i].l & htole32(HIFN_D_VALID)) == 0) { 2685 /* Salvage what we can. */ 2686 u_int8_t *macbuf; 2687 2688 if (cmd->base_masks & HIFN_BASE_CMD_MAC) { 2689 macbuf = dma->result_bufs[i]; 2690 macbuf += 12; 2691 } else 2692 macbuf = NULL; 2693 hifnstats.hst_opackets++; 2694 hifn_callback(sc, cmd, macbuf); 2695 } else { 2696 if (cmd->src_map == cmd->dst_map) { 2697 bus_dmamap_sync(sc->sc_dmat, cmd->src_map, 2698 BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE); 2699 } else { 2700 bus_dmamap_sync(sc->sc_dmat, cmd->src_map, 2701 BUS_DMASYNC_POSTWRITE); 2702 bus_dmamap_sync(sc->sc_dmat, cmd->dst_map, 2703 BUS_DMASYNC_POSTREAD); 2704 } 2705 2706 if (cmd->src_m != cmd->dst_m) { 2707 m_freem(cmd->src_m); 2708 crp->crp_buf = (caddr_t)cmd->dst_m; 2709 } 2710 2711 /* non-shared buffers cannot be restarted */ 2712 if (cmd->src_map != cmd->dst_map) { 2713 /* 2714 * XXX should be EAGAIN, delayed until 2715 * after the reset. 2716 */ 2717 crp->crp_etype = ENOMEM; 2718 bus_dmamap_unload(sc->sc_dmat, cmd->dst_map); 2719 bus_dmamap_destroy(sc->sc_dmat, cmd->dst_map); 2720 } else 2721 crp->crp_etype = ENOMEM; 2722 2723 bus_dmamap_unload(sc->sc_dmat, cmd->src_map); 2724 bus_dmamap_destroy(sc->sc_dmat, cmd->src_map); 2725 2726 free(cmd, M_DEVBUF); 2727 if (crp->crp_etype != EAGAIN) 2728 crypto_done(crp); 2729 } 2730 2731 if (++i == HIFN_D_RES_RSIZE) 2732 i = 0; 2733 u--; 2734 } 2735 dma->resk = i; dma->resu = u; 2736 2737 hifn_reset_board(sc, 1); 2738 hifn_init_dma(sc); 2739 hifn_init_pci_registers(sc); 2740} 2741 2742static void 2743hifn_callback(struct hifn_softc *sc, struct hifn_command *cmd, u_int8_t *macbuf) 2744{ 2745 struct hifn_dma *dma = sc->sc_dma; 2746 struct cryptop *crp = cmd->crp; 2747 struct cryptodesc *crd; 2748 struct mbuf *m; 2749 int totlen, i, u, ivlen; 2750 2751 if (cmd->src_map == cmd->dst_map) { 2752 bus_dmamap_sync(sc->sc_dmat, cmd->src_map, 2753 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 2754 } else { 2755 bus_dmamap_sync(sc->sc_dmat, cmd->src_map, 2756 BUS_DMASYNC_POSTWRITE); 2757 bus_dmamap_sync(sc->sc_dmat, cmd->dst_map, 2758 BUS_DMASYNC_POSTREAD); 2759 } 2760 2761 if (crp->crp_flags & CRYPTO_F_IMBUF) { 2762 if (cmd->src_m != cmd->dst_m) { 2763 crp->crp_buf = (caddr_t)cmd->dst_m; 2764 totlen = cmd->src_mapsize; 2765 for (m = cmd->dst_m; m != NULL; m = m->m_next) { 2766 if (totlen < m->m_len) { 2767 m->m_len = totlen; 2768 totlen = 0; 2769 } else 2770 totlen -= m->m_len; 2771 } 2772 cmd->dst_m->m_pkthdr.len = cmd->src_m->m_pkthdr.len; 2773 m_freem(cmd->src_m); 2774 } 2775 } 2776 2777 if (cmd->sloplen != 0) { 2778 if (crp->crp_flags & CRYPTO_F_IMBUF) 2779 m_copyback((struct mbuf *)crp->crp_buf, 2780 cmd->src_mapsize - cmd->sloplen, 2781 cmd->sloplen, (caddr_t)&dma->slop[cmd->slopidx]); 2782 else if (crp->crp_flags & CRYPTO_F_IOV) 2783 cuio_copyback((struct uio *)crp->crp_buf, 2784 cmd->src_mapsize - cmd->sloplen, 2785 cmd->sloplen, (caddr_t)&dma->slop[cmd->slopidx]); 2786 } 2787 2788 i = dma->dstk; u = dma->dstu; 2789 while (u != 0) { 2790 if (i == HIFN_D_DST_RSIZE) 2791 i = 0; 2792 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 2793 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 2794 if (dma->dstr[i].l & htole32(HIFN_D_VALID)) { 2795 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 2796 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2797 break; 2798 } 2799 i++, u--; 2800 } 2801 dma->dstk = i; dma->dstu = u; 2802 2803 hifnstats.hst_obytes += cmd->dst_mapsize; 2804 2805 if ((cmd->base_masks & (HIFN_BASE_CMD_CRYPT | HIFN_BASE_CMD_DECODE)) == 2806 HIFN_BASE_CMD_CRYPT) { 2807 for (crd = crp->crp_desc; crd; crd = crd->crd_next) { 2808 if (crd->crd_alg != CRYPTO_DES_CBC && 2809 crd->crd_alg != CRYPTO_3DES_CBC && 2810 crd->crd_alg != CRYPTO_AES_CBC) 2811 continue; 2812 ivlen = ((crd->crd_alg == CRYPTO_AES_CBC) ? 2813 HIFN_AES_IV_LENGTH : HIFN_IV_LENGTH); 2814 if (crp->crp_flags & CRYPTO_F_IMBUF) 2815 m_copydata((struct mbuf *)crp->crp_buf, 2816 crd->crd_skip + crd->crd_len - ivlen, ivlen, 2817 cmd->softc->sc_sessions[cmd->session_num].hs_iv); 2818 else if (crp->crp_flags & CRYPTO_F_IOV) { 2819 cuio_copydata((struct uio *)crp->crp_buf, 2820 crd->crd_skip + crd->crd_len - ivlen, ivlen, 2821 cmd->softc->sc_sessions[cmd->session_num].hs_iv); 2822 } 2823 break; 2824 } 2825 } 2826 2827 if (macbuf != NULL) { 2828 for (crd = crp->crp_desc; crd; crd = crd->crd_next) { 2829 int len; 2830 2831 if (crd->crd_alg == CRYPTO_MD5) 2832 len = 16; 2833 else if (crd->crd_alg == CRYPTO_SHA1) 2834 len = 20; 2835 else if (crd->crd_alg == CRYPTO_MD5_HMAC || 2836 crd->crd_alg == CRYPTO_SHA1_HMAC) 2837 len = 12; 2838 else 2839 continue; 2840 2841 if (crp->crp_flags & CRYPTO_F_IMBUF) 2842 m_copyback((struct mbuf *)crp->crp_buf, 2843 crd->crd_inject, len, macbuf); 2844 else if ((crp->crp_flags & CRYPTO_F_IOV) && crp->crp_mac) 2845 bcopy((caddr_t)macbuf, crp->crp_mac, len); 2846 break; 2847 } 2848 } 2849 2850 if (cmd->src_map != cmd->dst_map) { 2851 bus_dmamap_unload(sc->sc_dmat, cmd->dst_map); 2852 bus_dmamap_destroy(sc->sc_dmat, cmd->dst_map); 2853 } 2854 bus_dmamap_unload(sc->sc_dmat, cmd->src_map); 2855 bus_dmamap_destroy(sc->sc_dmat, cmd->src_map); 2856 free(cmd, M_DEVBUF); 2857 crypto_done(crp); 2858} 2859 2860/* 2861 * 7811 PB3 rev/2 parts lock-up on burst writes to Group 0 2862 * and Group 1 registers; avoid conditions that could create 2863 * burst writes by doing a read in between the writes. 2864 * 2865 * NB: The read we interpose is always to the same register; 2866 * we do this because reading from an arbitrary (e.g. last) 2867 * register may not always work. 2868 */ 2869static void 2870hifn_write_reg_0(struct hifn_softc *sc, bus_size_t reg, u_int32_t val) 2871{ 2872 if (sc->sc_flags & HIFN_IS_7811) { 2873 if (sc->sc_bar0_lastreg == reg - 4) 2874 bus_space_read_4(sc->sc_st0, sc->sc_sh0, HIFN_0_PUCNFG); 2875 sc->sc_bar0_lastreg = reg; 2876 } 2877 bus_space_write_4(sc->sc_st0, sc->sc_sh0, reg, val); 2878} 2879 2880static void 2881hifn_write_reg_1(struct hifn_softc *sc, bus_size_t reg, u_int32_t val) 2882{ 2883 if (sc->sc_flags & HIFN_IS_7811) { 2884 if (sc->sc_bar1_lastreg == reg - 4) 2885 bus_space_read_4(sc->sc_st1, sc->sc_sh1, HIFN_1_REVID); 2886 sc->sc_bar1_lastreg = reg; 2887 } 2888 bus_space_write_4(sc->sc_st1, sc->sc_sh1, reg, val); 2889} 2890