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("$FreeBSD$");
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 */
87 static int hifn_probe(device_t);
88 static int hifn_attach(device_t);
89 static int hifn_detach(device_t);
90 static int hifn_suspend(device_t);
91 static int hifn_resume(device_t);
92 static void hifn_shutdown(device_t);
93
94 static 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 };
109 static driver_t hifn_driver = {
110 "hifn",
111 hifn_methods,
112 sizeof (struct hifn_softc)
113 };
114 static devclass_t hifn_devclass;
115
116 DRIVER_MODULE(hifn, pci, hifn_driver, hifn_devclass, 0, 0);
117 MODULE_DEPEND(hifn, crypto, 1, 1, 1);
118 #ifdef HIFN_RNDTEST
119 MODULE_DEPEND(hifn, rndtest, 1, 1, 1);
120 #endif
121
122 static void hifn_reset_board(struct hifn_softc *, int);
123 static void hifn_reset_puc(struct hifn_softc *);
124 static void hifn_puc_wait(struct hifn_softc *);
125 static int hifn_enable_crypto(struct hifn_softc *);
126 static void hifn_set_retry(struct hifn_softc *sc);
127 static void hifn_init_dma(struct hifn_softc *);
128 static void hifn_init_pci_registers(struct hifn_softc *);
129 static int hifn_sramsize(struct hifn_softc *);
130 static int hifn_dramsize(struct hifn_softc *);
131 static int hifn_ramtype(struct hifn_softc *);
132 static void hifn_sessions(struct hifn_softc *);
133 static void hifn_intr(void *);
134 static u_int hifn_write_command(struct hifn_command *, u_int8_t *);
135 static u_int32_t hifn_next_signature(u_int32_t a, u_int cnt);
136 static int hifn_newsession(void *, u_int32_t *, struct cryptoini *);
137 static int hifn_freesession(void *, u_int64_t);
138 static int hifn_process(void *, struct cryptop *, int);
139 static void hifn_callback(struct hifn_softc *, struct hifn_command *, u_int8_t *);
140 static int hifn_crypto(struct hifn_softc *, struct hifn_command *, struct cryptop *, int);
141 static int hifn_readramaddr(struct hifn_softc *, int, u_int8_t *);
142 static int hifn_writeramaddr(struct hifn_softc *, int, u_int8_t *);
143 static int hifn_dmamap_load_src(struct hifn_softc *, struct hifn_command *);
144 static int hifn_dmamap_load_dst(struct hifn_softc *, struct hifn_command *);
145 static int hifn_init_pubrng(struct hifn_softc *);
146 static void hifn_rng(void *);
147 static void hifn_tick(void *);
148 static void hifn_abort(struct hifn_softc *);
149 static void hifn_alloc_slot(struct hifn_softc *, int *, int *, int *, int *);
150
151 static void hifn_write_reg_0(struct hifn_softc *, bus_size_t, u_int32_t);
152 static void hifn_write_reg_1(struct hifn_softc *, bus_size_t, u_int32_t);
153
154 static __inline u_int32_t
155 READ_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
163 static __inline u_int32_t
164 READ_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
172 SYSCTL_NODE(_hw, OID_AUTO, hifn, CTLFLAG_RD, 0, "Hifn driver parameters");
173
174 #ifdef HIFN_DEBUG
175 static int hifn_debug = 0;
176 SYSCTL_INT(_hw_hifn, OID_AUTO, debug, CTLFLAG_RW, &hifn_debug,
177 0, "control debugging msgs");
178 #endif
179
180 static struct hifn_stats hifnstats;
181 SYSCTL_STRUCT(_hw_hifn, OID_AUTO, stats, CTLFLAG_RD, &hifnstats,
182 hifn_stats, "driver statistics");
183 static int hifn_maxbatch = 1;
184 SYSCTL_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 */
191 static int
192 hifn_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
210 static void
211 hifn_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
217 static const char*
218 hifn_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
246 static void
247 default_harvest(struct rndtest_state *rsp, void *buf, u_int count)
248 {
249 random_harvest(buf, count, count*NBBY, 0, RANDOM_PURE);
250 }
251
252 static u_int
253 checkmaxmin(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 */
284 static void
285 hifn_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 */
333 static int
334 hifn_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
609 fail_intr:
610 bus_teardown_intr(dev, sc->sc_irq, sc->sc_intrhand);
611 fail_intr2:
612 /* XXX don't store rid */
613 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq);
614 fail_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);
623 fail_io1:
624 bus_release_resource(dev, SYS_RES_MEMORY, HIFN_BAR1, sc->sc_bar1res);
625 fail_io0:
626 bus_release_resource(dev, SYS_RES_MEMORY, HIFN_BAR0, sc->sc_bar0res);
627 fail_pci:
628 mtx_destroy(&sc->sc_mtx);
629 return (ENXIO);
630 }
631
632 /*
633 * Detach an interface that successfully probed.
634 */
635 static int
636 hifn_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 */
682 static void
683 hifn_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 */
695 static int
696 hifn_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 */
720 static int
721 hifn_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
748 static int
749 hifn_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
817 static void
818 hifn_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
864 static void
865 hifn_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 */
881 static void
882 hifn_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 */
895 static void
896 hifn_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 */
907 static void
908 hifn_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
957 static u_int32_t
958 hifn_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
979 struct pci2id {
980 u_short pci_vendor;
981 u_short pci_prod;
982 char card_id[13];
983 };
984 static 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 */
1033 static int
1034 hifn_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
1113 report:
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 */
1134 static void
1135 hifn_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 */
1226 static void
1227 hifn_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 */
1258 static int
1259 hifn_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
1293 static int
1294 hifn_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 */
1328 static int
1329 hifn_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
1346 static void
1347 hifn_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
1392 static int
1393 hifn_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
1453 static int
1454 hifn_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 */
1517 static void
1518 hifn_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 */
1551 static u_int
1552 hifn_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
1665 static int
1666 hifn_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
1679 static int
1680 hifn_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
1751 static int
1752 hifn_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
1783 static void
1784 hifn_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
1796 static int
1797 hifn_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
2104 err_dstmap:
2105 if (cmd->src_map != cmd->dst_map)
2106 bus_dmamap_unload(sc->sc_dmat, cmd->dst_map);
2107 err_dstmap1:
2108 if (cmd->src_map != cmd->dst_map)
2109 bus_dmamap_destroy(sc->sc_dmat, cmd->dst_map);
2110 err_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);
2116 err_srcmap1:
2117 bus_dmamap_destroy(sc->sc_dmat, cmd->src_map);
2118 HIFN_UNLOCK(sc);
2119 return (err);
2120 }
2121
2122 static void
2123 hifn_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
2156 static void
2157 hifn_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 */
2313 static int
2314 hifn_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 */
2397 static int
2398 hifn_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
2416 static int
2417 hifn_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
2657 errout:
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
2669 static void
2670 hifn_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
2742 static void
2743 hifn_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 */
2869 static void
2870 hifn_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
2880 static void
2881 hifn_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 }
Cache object: 3861725f4e299e84308cef155075de38
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