125638cf4SSascha Wildner /*-
225638cf4SSascha Wildner * Copyright (c) 2003 Sam Leffler, Errno Consulting
325638cf4SSascha Wildner * Copyright (c) 2003 Global Technology Associates, Inc.
425638cf4SSascha Wildner * All rights reserved.
525638cf4SSascha Wildner *
625638cf4SSascha Wildner * Redistribution and use in source and binary forms, with or without
725638cf4SSascha Wildner * modification, are permitted provided that the following conditions
825638cf4SSascha Wildner * are met:
925638cf4SSascha Wildner * 1. Redistributions of source code must retain the above copyright
1025638cf4SSascha Wildner * notice, this list of conditions and the following disclaimer.
1125638cf4SSascha Wildner * 2. Redistributions in binary form must reproduce the above copyright
1225638cf4SSascha Wildner * notice, this list of conditions and the following disclaimer in the
1325638cf4SSascha Wildner * documentation and/or other materials provided with the distribution.
1425638cf4SSascha Wildner *
1525638cf4SSascha Wildner * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
1625638cf4SSascha Wildner * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1725638cf4SSascha Wildner * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1825638cf4SSascha Wildner * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
1925638cf4SSascha Wildner * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
2025638cf4SSascha Wildner * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2125638cf4SSascha Wildner * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2225638cf4SSascha Wildner * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2325638cf4SSascha Wildner * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
2425638cf4SSascha Wildner * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
2525638cf4SSascha Wildner * SUCH DAMAGE.
2625638cf4SSascha Wildner *
2725638cf4SSascha Wildner * $FreeBSD: src/sys/dev/safe/safe.c,v 1.22 2011/06/12 23:33:08 delphij Exp $
2825638cf4SSascha Wildner */
2925638cf4SSascha Wildner
3025638cf4SSascha Wildner /*
3125638cf4SSascha Wildner * SafeNet SafeXcel-1141 hardware crypto accelerator
3225638cf4SSascha Wildner */
3325638cf4SSascha Wildner #include "opt_safe.h"
3425638cf4SSascha Wildner
3525638cf4SSascha Wildner #include <sys/param.h>
3625638cf4SSascha Wildner #include <sys/systm.h>
3725638cf4SSascha Wildner #include <sys/proc.h>
3825638cf4SSascha Wildner #include <sys/errno.h>
3925638cf4SSascha Wildner #include <sys/malloc.h>
4025638cf4SSascha Wildner #include <sys/kernel.h>
4125638cf4SSascha Wildner #include <sys/mbuf.h>
4225638cf4SSascha Wildner #include <sys/module.h>
4325638cf4SSascha Wildner #include <sys/lock.h>
4425638cf4SSascha Wildner #include <sys/sysctl.h>
4525638cf4SSascha Wildner #include <sys/endian.h>
4625638cf4SSascha Wildner
4725638cf4SSascha Wildner #include <vm/vm.h>
4825638cf4SSascha Wildner #include <vm/pmap.h>
4925638cf4SSascha Wildner
5025638cf4SSascha Wildner #include <sys/bus.h>
5125638cf4SSascha Wildner #include <sys/rman.h>
5225638cf4SSascha Wildner
5325638cf4SSascha Wildner #include <crypto/sha1.h>
5425638cf4SSascha Wildner #include <opencrypto/cryptodev.h>
5525638cf4SSascha Wildner #include <opencrypto/cryptosoft.h>
5625638cf4SSascha Wildner #include <sys/md5.h>
5725638cf4SSascha Wildner #include <sys/random.h>
5825638cf4SSascha Wildner #include <sys/kobj.h>
5925638cf4SSascha Wildner
6025638cf4SSascha Wildner #include "cryptodev_if.h"
6125638cf4SSascha Wildner
6225638cf4SSascha Wildner #include <bus/pci/pcivar.h>
6325638cf4SSascha Wildner #include <bus/pci/pcireg.h>
6425638cf4SSascha Wildner
6525638cf4SSascha Wildner #ifdef SAFE_RNDTEST
6625638cf4SSascha Wildner #include <dev/crypto/rndtest/rndtest.h>
6725638cf4SSascha Wildner #endif
6825638cf4SSascha Wildner #include <dev/crypto/safe/safereg.h>
6925638cf4SSascha Wildner #include <dev/crypto/safe/safevar.h>
7025638cf4SSascha Wildner
7125638cf4SSascha Wildner #ifndef bswap32
7225638cf4SSascha Wildner #define bswap32 NTOHL
7325638cf4SSascha Wildner #endif
7425638cf4SSascha Wildner
7525638cf4SSascha Wildner /*
7625638cf4SSascha Wildner * Prototypes and count for the pci_device structure
7725638cf4SSascha Wildner */
7825638cf4SSascha Wildner static int safe_probe(device_t);
7925638cf4SSascha Wildner static int safe_attach(device_t);
8025638cf4SSascha Wildner static int safe_detach(device_t);
8125638cf4SSascha Wildner static int safe_suspend(device_t);
8225638cf4SSascha Wildner static int safe_resume(device_t);
8325638cf4SSascha Wildner static int safe_shutdown(device_t);
8425638cf4SSascha Wildner
8525638cf4SSascha Wildner static int safe_newsession(device_t, u_int32_t *, struct cryptoini *);
8625638cf4SSascha Wildner static int safe_freesession(device_t, u_int64_t);
8725638cf4SSascha Wildner static int safe_process(device_t, struct cryptop *, int);
8825638cf4SSascha Wildner
8925638cf4SSascha Wildner static device_method_t safe_methods[] = {
9025638cf4SSascha Wildner /* Device interface */
9125638cf4SSascha Wildner DEVMETHOD(device_probe, safe_probe),
9225638cf4SSascha Wildner DEVMETHOD(device_attach, safe_attach),
9325638cf4SSascha Wildner DEVMETHOD(device_detach, safe_detach),
9425638cf4SSascha Wildner DEVMETHOD(device_suspend, safe_suspend),
9525638cf4SSascha Wildner DEVMETHOD(device_resume, safe_resume),
9625638cf4SSascha Wildner DEVMETHOD(device_shutdown, safe_shutdown),
9725638cf4SSascha Wildner
9825638cf4SSascha Wildner /* bus interface */
9925638cf4SSascha Wildner DEVMETHOD(bus_print_child, bus_generic_print_child),
10025638cf4SSascha Wildner DEVMETHOD(bus_driver_added, bus_generic_driver_added),
10125638cf4SSascha Wildner
10225638cf4SSascha Wildner /* crypto device methods */
10325638cf4SSascha Wildner DEVMETHOD(cryptodev_newsession, safe_newsession),
10425638cf4SSascha Wildner DEVMETHOD(cryptodev_freesession,safe_freesession),
10525638cf4SSascha Wildner DEVMETHOD(cryptodev_process, safe_process),
10625638cf4SSascha Wildner
107d3c9c58eSSascha Wildner DEVMETHOD_END
10825638cf4SSascha Wildner };
10925638cf4SSascha Wildner static driver_t safe_driver = {
11025638cf4SSascha Wildner "safe",
11125638cf4SSascha Wildner safe_methods,
11225638cf4SSascha Wildner sizeof (struct safe_softc)
11325638cf4SSascha Wildner };
11425638cf4SSascha Wildner static devclass_t safe_devclass;
11525638cf4SSascha Wildner
1168515b7f9SSascha Wildner DRIVER_MODULE(safe, pci, safe_driver, safe_devclass, NULL, NULL);
11725638cf4SSascha Wildner MODULE_DEPEND(safe, crypto, 1, 1, 1);
11825638cf4SSascha Wildner #ifdef SAFE_RNDTEST
11925638cf4SSascha Wildner MODULE_DEPEND(safe, rndtest, 1, 1, 1);
12025638cf4SSascha Wildner #endif
12125638cf4SSascha Wildner
12225638cf4SSascha Wildner static void safe_intr(void *);
12325638cf4SSascha Wildner static void safe_callback(struct safe_softc *, struct safe_ringentry *);
12425638cf4SSascha Wildner static void safe_feed(struct safe_softc *, struct safe_ringentry *);
12525638cf4SSascha Wildner static void safe_mcopy(struct mbuf *, struct mbuf *, u_int);
12625638cf4SSascha Wildner #ifndef SAFE_NO_RNG
12725638cf4SSascha Wildner static void safe_rng_init(struct safe_softc *);
12825638cf4SSascha Wildner static void safe_rng(void *);
12925638cf4SSascha Wildner #endif /* SAFE_NO_RNG */
13025638cf4SSascha Wildner static int safe_dma_malloc(struct safe_softc *, bus_size_t,
13125638cf4SSascha Wildner struct safe_dma_alloc *, int);
13225638cf4SSascha Wildner #define safe_dma_sync(_dma, _flags) \
13325638cf4SSascha Wildner bus_dmamap_sync((_dma)->dma_tag, (_dma)->dma_map, (_flags))
13425638cf4SSascha Wildner static void safe_dma_free(struct safe_softc *, struct safe_dma_alloc *);
13525638cf4SSascha Wildner static int safe_dmamap_aligned(const struct safe_operand *);
13625638cf4SSascha Wildner static int safe_dmamap_uniform(const struct safe_operand *);
13725638cf4SSascha Wildner
13825638cf4SSascha Wildner static void safe_reset_board(struct safe_softc *);
13925638cf4SSascha Wildner static void safe_init_board(struct safe_softc *);
14025638cf4SSascha Wildner static void safe_init_pciregs(device_t dev);
14125638cf4SSascha Wildner static void safe_cleanchip(struct safe_softc *);
14225638cf4SSascha Wildner static void safe_totalreset(struct safe_softc *);
14325638cf4SSascha Wildner
14425638cf4SSascha Wildner static int safe_free_entry(struct safe_softc *, struct safe_ringentry *);
14525638cf4SSascha Wildner
14625638cf4SSascha Wildner SYSCTL_NODE(_hw, OID_AUTO, safe, CTLFLAG_RD, 0, "SafeNet driver parameters");
14725638cf4SSascha Wildner
14825638cf4SSascha Wildner #ifdef SAFE_DEBUG
14925638cf4SSascha Wildner static void safe_dump_dmastatus(struct safe_softc *, const char *);
15025638cf4SSascha Wildner static void safe_dump_ringstate(struct safe_softc *, const char *);
15125638cf4SSascha Wildner static void safe_dump_intrstate(struct safe_softc *, const char *);
15225638cf4SSascha Wildner static void safe_dump_request(struct safe_softc *, const char *,
15325638cf4SSascha Wildner struct safe_ringentry *);
15425638cf4SSascha Wildner
15525638cf4SSascha Wildner static struct safe_softc *safec; /* for use by hw.safe.dump */
15625638cf4SSascha Wildner
15725638cf4SSascha Wildner static int safe_debug = 0;
15825638cf4SSascha Wildner SYSCTL_INT(_hw_safe, OID_AUTO, debug, CTLFLAG_RW, &safe_debug,
15925638cf4SSascha Wildner 0, "control debugging msgs");
16025638cf4SSascha Wildner #define DPRINTF(_x) if (safe_debug) kprintf _x
16125638cf4SSascha Wildner #else
16225638cf4SSascha Wildner #define DPRINTF(_x)
16325638cf4SSascha Wildner #endif
16425638cf4SSascha Wildner
16525638cf4SSascha Wildner #define READ_REG(sc,r) \
16625638cf4SSascha Wildner bus_space_read_4((sc)->sc_st, (sc)->sc_sh, (r))
16725638cf4SSascha Wildner
16825638cf4SSascha Wildner #define WRITE_REG(sc,reg,val) \
16925638cf4SSascha Wildner bus_space_write_4((sc)->sc_st, (sc)->sc_sh, reg, val)
17025638cf4SSascha Wildner
17125638cf4SSascha Wildner struct safe_stats safestats;
17225638cf4SSascha Wildner SYSCTL_STRUCT(_hw_safe, OID_AUTO, stats, CTLFLAG_RD, &safestats,
17325638cf4SSascha Wildner safe_stats, "driver statistics");
17425638cf4SSascha Wildner #ifndef SAFE_NO_RNG
17525638cf4SSascha Wildner static int safe_rnginterval = 1; /* poll once a second */
17625638cf4SSascha Wildner SYSCTL_INT(_hw_safe, OID_AUTO, rnginterval, CTLFLAG_RW, &safe_rnginterval,
17725638cf4SSascha Wildner 0, "RNG polling interval (secs)");
17825638cf4SSascha Wildner static int safe_rngbufsize = 16; /* 64 bytes each poll */
17925638cf4SSascha Wildner SYSCTL_INT(_hw_safe, OID_AUTO, rngbufsize, CTLFLAG_RW, &safe_rngbufsize,
18025638cf4SSascha Wildner 0, "RNG polling buffer size (32-bit words)");
18125638cf4SSascha Wildner static int safe_rngmaxalarm = 8; /* max alarms before reset */
18225638cf4SSascha Wildner SYSCTL_INT(_hw_safe, OID_AUTO, rngmaxalarm, CTLFLAG_RW, &safe_rngmaxalarm,
18325638cf4SSascha Wildner 0, "RNG max alarms before reset");
18425638cf4SSascha Wildner #endif /* SAFE_NO_RNG */
18525638cf4SSascha Wildner
18625638cf4SSascha Wildner static int
safe_probe(device_t dev)18725638cf4SSascha Wildner safe_probe(device_t dev)
18825638cf4SSascha Wildner {
18925638cf4SSascha Wildner if (pci_get_vendor(dev) == PCI_VENDOR_SAFENET &&
19025638cf4SSascha Wildner pci_get_device(dev) == PCI_PRODUCT_SAFEXCEL)
19125638cf4SSascha Wildner return (BUS_PROBE_DEFAULT);
19225638cf4SSascha Wildner return (ENXIO);
19325638cf4SSascha Wildner }
19425638cf4SSascha Wildner
19525638cf4SSascha Wildner static const char*
safe_partname(struct safe_softc * sc)19625638cf4SSascha Wildner safe_partname(struct safe_softc *sc)
19725638cf4SSascha Wildner {
19825638cf4SSascha Wildner /* XXX sprintf numbers when not decoded */
19925638cf4SSascha Wildner switch (pci_get_vendor(sc->sc_dev)) {
20025638cf4SSascha Wildner case PCI_VENDOR_SAFENET:
20125638cf4SSascha Wildner switch (pci_get_device(sc->sc_dev)) {
20225638cf4SSascha Wildner case PCI_PRODUCT_SAFEXCEL: return "SafeNet SafeXcel-1141";
20325638cf4SSascha Wildner }
20425638cf4SSascha Wildner return "SafeNet unknown-part";
20525638cf4SSascha Wildner }
20625638cf4SSascha Wildner return "Unknown-vendor unknown-part";
20725638cf4SSascha Wildner }
20825638cf4SSascha Wildner
20925638cf4SSascha Wildner #ifndef SAFE_NO_RNG
21025638cf4SSascha Wildner static void
default_harvest(struct rndtest_state * rsp,void * buf,u_int count)21125638cf4SSascha Wildner default_harvest(struct rndtest_state *rsp, void *buf, u_int count)
21225638cf4SSascha Wildner {
213790110cdSAlex Hornung add_buffer_randomness_src(buf, count, RAND_SRC_SAFE);
21425638cf4SSascha Wildner }
21525638cf4SSascha Wildner #endif /* SAFE_NO_RNG */
21625638cf4SSascha Wildner
21725638cf4SSascha Wildner static int
safe_attach(device_t dev)21825638cf4SSascha Wildner safe_attach(device_t dev)
21925638cf4SSascha Wildner {
22025638cf4SSascha Wildner struct safe_softc *sc = device_get_softc(dev);
22125638cf4SSascha Wildner u_int32_t raddr;
22225638cf4SSascha Wildner u_int32_t cmd, i, devinfo;
22325638cf4SSascha Wildner int rid;
22425638cf4SSascha Wildner
22525638cf4SSascha Wildner bzero(sc, sizeof (*sc));
22625638cf4SSascha Wildner sc->sc_dev = dev;
22725638cf4SSascha Wildner
22825638cf4SSascha Wildner /* XXX handle power management */
22925638cf4SSascha Wildner
23025638cf4SSascha Wildner cmd = pci_read_config(dev, PCIR_COMMAND, 4);
23125638cf4SSascha Wildner cmd |= PCIM_CMD_MEMEN | PCIM_CMD_BUSMASTEREN;
23225638cf4SSascha Wildner pci_write_config(dev, PCIR_COMMAND, cmd, 4);
23325638cf4SSascha Wildner cmd = pci_read_config(dev, PCIR_COMMAND, 4);
23425638cf4SSascha Wildner
23525638cf4SSascha Wildner if (!(cmd & PCIM_CMD_MEMEN)) {
23625638cf4SSascha Wildner device_printf(dev, "failed to enable memory mapping\n");
23725638cf4SSascha Wildner goto bad;
23825638cf4SSascha Wildner }
23925638cf4SSascha Wildner
24025638cf4SSascha Wildner if (!(cmd & PCIM_CMD_BUSMASTEREN)) {
24125638cf4SSascha Wildner device_printf(dev, "failed to enable bus mastering\n");
24225638cf4SSascha Wildner goto bad;
24325638cf4SSascha Wildner }
24425638cf4SSascha Wildner
24525638cf4SSascha Wildner /*
24625638cf4SSascha Wildner * Setup memory-mapping of PCI registers.
24725638cf4SSascha Wildner */
24825638cf4SSascha Wildner rid = BS_BAR;
24925638cf4SSascha Wildner sc->sc_sr = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
25025638cf4SSascha Wildner RF_ACTIVE);
25125638cf4SSascha Wildner if (sc->sc_sr == NULL) {
25225638cf4SSascha Wildner device_printf(dev, "cannot map register space\n");
25325638cf4SSascha Wildner goto bad;
25425638cf4SSascha Wildner }
25525638cf4SSascha Wildner sc->sc_st = rman_get_bustag(sc->sc_sr);
25625638cf4SSascha Wildner sc->sc_sh = rman_get_bushandle(sc->sc_sr);
25725638cf4SSascha Wildner
25825638cf4SSascha Wildner /*
25925638cf4SSascha Wildner * Arrange interrupt line.
26025638cf4SSascha Wildner */
26125638cf4SSascha Wildner rid = 0;
26225638cf4SSascha Wildner sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
26325638cf4SSascha Wildner RF_SHAREABLE|RF_ACTIVE);
26425638cf4SSascha Wildner if (sc->sc_irq == NULL) {
26525638cf4SSascha Wildner device_printf(dev, "could not map interrupt\n");
26625638cf4SSascha Wildner goto bad1;
26725638cf4SSascha Wildner }
26825638cf4SSascha Wildner /*
26925638cf4SSascha Wildner * NB: Network code assumes we are blocked with splimp()
27025638cf4SSascha Wildner * so make sure the IRQ is mapped appropriately.
27125638cf4SSascha Wildner */
27225638cf4SSascha Wildner if (bus_setup_intr(dev, sc->sc_irq, INTR_MPSAFE,
27325638cf4SSascha Wildner safe_intr, sc, &sc->sc_ih, NULL)) {
27425638cf4SSascha Wildner device_printf(dev, "could not establish interrupt\n");
27525638cf4SSascha Wildner goto bad2;
27625638cf4SSascha Wildner }
27725638cf4SSascha Wildner
27825638cf4SSascha Wildner sc->sc_cid = crypto_get_driverid(dev, CRYPTOCAP_F_HARDWARE);
27925638cf4SSascha Wildner if (sc->sc_cid < 0) {
28025638cf4SSascha Wildner device_printf(dev, "could not get crypto driver id\n");
28125638cf4SSascha Wildner goto bad3;
28225638cf4SSascha Wildner }
28325638cf4SSascha Wildner
28425638cf4SSascha Wildner sc->sc_chiprev = READ_REG(sc, SAFE_DEVINFO) &
28525638cf4SSascha Wildner (SAFE_DEVINFO_REV_MAJ | SAFE_DEVINFO_REV_MIN);
28625638cf4SSascha Wildner
28725638cf4SSascha Wildner /*
28825638cf4SSascha Wildner * Setup DMA descriptor area.
28925638cf4SSascha Wildner */
29025638cf4SSascha Wildner if (bus_dma_tag_create(NULL, /* parent */
29125638cf4SSascha Wildner 1, /* alignment */
29225638cf4SSascha Wildner SAFE_DMA_BOUNDARY, /* boundary */
29325638cf4SSascha Wildner BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
29425638cf4SSascha Wildner BUS_SPACE_MAXADDR, /* highaddr */
29525638cf4SSascha Wildner SAFE_MAX_DMA, /* maxsize */
29625638cf4SSascha Wildner SAFE_MAX_PART, /* nsegments */
29725638cf4SSascha Wildner SAFE_MAX_SSIZE, /* maxsegsize */
29825638cf4SSascha Wildner BUS_DMA_ALLOCNOW, /* flags */
29925638cf4SSascha Wildner &sc->sc_srcdmat)) {
30025638cf4SSascha Wildner device_printf(dev, "cannot allocate DMA tag\n");
30125638cf4SSascha Wildner goto bad4;
30225638cf4SSascha Wildner }
30325638cf4SSascha Wildner if (bus_dma_tag_create(NULL, /* parent */
30425638cf4SSascha Wildner 1, /* alignment */
30525638cf4SSascha Wildner SAFE_MAX_DSIZE, /* boundary */
30625638cf4SSascha Wildner BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
30725638cf4SSascha Wildner BUS_SPACE_MAXADDR, /* highaddr */
30825638cf4SSascha Wildner SAFE_MAX_DMA, /* maxsize */
30925638cf4SSascha Wildner SAFE_MAX_PART, /* nsegments */
31025638cf4SSascha Wildner SAFE_MAX_DSIZE, /* maxsegsize */
31125638cf4SSascha Wildner BUS_DMA_ALLOCNOW, /* flags */
31225638cf4SSascha Wildner &sc->sc_dstdmat)) {
31325638cf4SSascha Wildner device_printf(dev, "cannot allocate DMA tag\n");
31425638cf4SSascha Wildner goto bad4;
31525638cf4SSascha Wildner }
31625638cf4SSascha Wildner
31725638cf4SSascha Wildner /*
31825638cf4SSascha Wildner * Allocate packet engine descriptors.
31925638cf4SSascha Wildner */
32025638cf4SSascha Wildner if (safe_dma_malloc(sc,
32125638cf4SSascha Wildner SAFE_MAX_NQUEUE * sizeof (struct safe_ringentry),
32225638cf4SSascha Wildner &sc->sc_ringalloc, 0)) {
32325638cf4SSascha Wildner device_printf(dev, "cannot allocate PE descriptor ring\n");
32425638cf4SSascha Wildner bus_dma_tag_destroy(sc->sc_srcdmat);
32525638cf4SSascha Wildner goto bad4;
32625638cf4SSascha Wildner }
32725638cf4SSascha Wildner /*
32825638cf4SSascha Wildner * Hookup the static portion of all our data structures.
32925638cf4SSascha Wildner */
33025638cf4SSascha Wildner sc->sc_ring = (struct safe_ringentry *) sc->sc_ringalloc.dma_vaddr;
33125638cf4SSascha Wildner sc->sc_ringtop = sc->sc_ring + SAFE_MAX_NQUEUE;
33225638cf4SSascha Wildner sc->sc_front = sc->sc_ring;
33325638cf4SSascha Wildner sc->sc_back = sc->sc_ring;
33425638cf4SSascha Wildner raddr = sc->sc_ringalloc.dma_paddr;
33525638cf4SSascha Wildner bzero(sc->sc_ring, SAFE_MAX_NQUEUE * sizeof(struct safe_ringentry));
33625638cf4SSascha Wildner for (i = 0; i < SAFE_MAX_NQUEUE; i++) {
33725638cf4SSascha Wildner struct safe_ringentry *re = &sc->sc_ring[i];
33825638cf4SSascha Wildner
33925638cf4SSascha Wildner re->re_desc.d_sa = raddr +
34025638cf4SSascha Wildner offsetof(struct safe_ringentry, re_sa);
34125638cf4SSascha Wildner re->re_sa.sa_staterec = raddr +
34225638cf4SSascha Wildner offsetof(struct safe_ringentry, re_sastate);
34325638cf4SSascha Wildner
34425638cf4SSascha Wildner raddr += sizeof (struct safe_ringentry);
34525638cf4SSascha Wildner }
34625638cf4SSascha Wildner lockinit(&sc->sc_ringlock, "packet engine ring", 0, LK_CANRECURSE);
34725638cf4SSascha Wildner
34825638cf4SSascha Wildner /*
34925638cf4SSascha Wildner * Allocate scatter and gather particle descriptors.
35025638cf4SSascha Wildner */
35125638cf4SSascha Wildner if (safe_dma_malloc(sc, SAFE_TOTAL_SPART * sizeof (struct safe_pdesc),
35225638cf4SSascha Wildner &sc->sc_spalloc, 0)) {
35325638cf4SSascha Wildner device_printf(dev, "cannot allocate source particle "
35425638cf4SSascha Wildner "descriptor ring\n");
35525638cf4SSascha Wildner lockuninit(&sc->sc_ringlock);
35625638cf4SSascha Wildner safe_dma_free(sc, &sc->sc_ringalloc);
35725638cf4SSascha Wildner bus_dma_tag_destroy(sc->sc_srcdmat);
35825638cf4SSascha Wildner goto bad4;
35925638cf4SSascha Wildner }
36025638cf4SSascha Wildner sc->sc_spring = (struct safe_pdesc *) sc->sc_spalloc.dma_vaddr;
36125638cf4SSascha Wildner sc->sc_springtop = sc->sc_spring + SAFE_TOTAL_SPART;
36225638cf4SSascha Wildner sc->sc_spfree = sc->sc_spring;
36325638cf4SSascha Wildner bzero(sc->sc_spring, SAFE_TOTAL_SPART * sizeof(struct safe_pdesc));
36425638cf4SSascha Wildner
36525638cf4SSascha Wildner if (safe_dma_malloc(sc, SAFE_TOTAL_DPART * sizeof (struct safe_pdesc),
36625638cf4SSascha Wildner &sc->sc_dpalloc, 0)) {
36725638cf4SSascha Wildner device_printf(dev, "cannot allocate destination particle "
36825638cf4SSascha Wildner "descriptor ring\n");
36925638cf4SSascha Wildner lockuninit(&sc->sc_ringlock);
37025638cf4SSascha Wildner safe_dma_free(sc, &sc->sc_spalloc);
37125638cf4SSascha Wildner safe_dma_free(sc, &sc->sc_ringalloc);
37225638cf4SSascha Wildner bus_dma_tag_destroy(sc->sc_dstdmat);
37325638cf4SSascha Wildner goto bad4;
37425638cf4SSascha Wildner }
37525638cf4SSascha Wildner sc->sc_dpring = (struct safe_pdesc *) sc->sc_dpalloc.dma_vaddr;
37625638cf4SSascha Wildner sc->sc_dpringtop = sc->sc_dpring + SAFE_TOTAL_DPART;
37725638cf4SSascha Wildner sc->sc_dpfree = sc->sc_dpring;
37825638cf4SSascha Wildner bzero(sc->sc_dpring, SAFE_TOTAL_DPART * sizeof(struct safe_pdesc));
37925638cf4SSascha Wildner
38025638cf4SSascha Wildner device_printf(sc->sc_dev, "%s", safe_partname(sc));
38125638cf4SSascha Wildner
38225638cf4SSascha Wildner devinfo = READ_REG(sc, SAFE_DEVINFO);
38325638cf4SSascha Wildner if (devinfo & SAFE_DEVINFO_RNG) {
38425638cf4SSascha Wildner sc->sc_flags |= SAFE_FLAGS_RNG;
38525638cf4SSascha Wildner kprintf(" rng");
38625638cf4SSascha Wildner }
38725638cf4SSascha Wildner if (devinfo & SAFE_DEVINFO_PKEY) {
38825638cf4SSascha Wildner #if 0
38925638cf4SSascha Wildner kprintf(" key");
39025638cf4SSascha Wildner sc->sc_flags |= SAFE_FLAGS_KEY;
39125638cf4SSascha Wildner crypto_kregister(sc->sc_cid, CRK_MOD_EXP, 0);
39225638cf4SSascha Wildner crypto_kregister(sc->sc_cid, CRK_MOD_EXP_CRT, 0);
39325638cf4SSascha Wildner #endif
39425638cf4SSascha Wildner }
39525638cf4SSascha Wildner if (devinfo & SAFE_DEVINFO_DES) {
39625638cf4SSascha Wildner kprintf(" des/3des");
39725638cf4SSascha Wildner crypto_register(sc->sc_cid, CRYPTO_3DES_CBC, 0, 0);
39825638cf4SSascha Wildner crypto_register(sc->sc_cid, CRYPTO_DES_CBC, 0, 0);
39925638cf4SSascha Wildner }
40025638cf4SSascha Wildner if (devinfo & SAFE_DEVINFO_AES) {
40125638cf4SSascha Wildner kprintf(" aes");
40225638cf4SSascha Wildner crypto_register(sc->sc_cid, CRYPTO_AES_CBC, 0, 0);
40325638cf4SSascha Wildner }
40425638cf4SSascha Wildner if (devinfo & SAFE_DEVINFO_MD5) {
40525638cf4SSascha Wildner kprintf(" md5");
40625638cf4SSascha Wildner crypto_register(sc->sc_cid, CRYPTO_MD5_HMAC, 0, 0);
40725638cf4SSascha Wildner }
40825638cf4SSascha Wildner if (devinfo & SAFE_DEVINFO_SHA1) {
40925638cf4SSascha Wildner kprintf(" sha1");
41025638cf4SSascha Wildner crypto_register(sc->sc_cid, CRYPTO_SHA1_HMAC, 0, 0);
41125638cf4SSascha Wildner }
41225638cf4SSascha Wildner kprintf(" null");
41325638cf4SSascha Wildner crypto_register(sc->sc_cid, CRYPTO_NULL_CBC, 0, 0);
41425638cf4SSascha Wildner crypto_register(sc->sc_cid, CRYPTO_NULL_HMAC, 0, 0);
41525638cf4SSascha Wildner /* XXX other supported algorithms */
41625638cf4SSascha Wildner kprintf("\n");
41725638cf4SSascha Wildner
41825638cf4SSascha Wildner safe_reset_board(sc); /* reset h/w */
41925638cf4SSascha Wildner safe_init_pciregs(dev); /* init pci settings */
42025638cf4SSascha Wildner safe_init_board(sc); /* init h/w */
42125638cf4SSascha Wildner
42225638cf4SSascha Wildner #ifndef SAFE_NO_RNG
42325638cf4SSascha Wildner if (sc->sc_flags & SAFE_FLAGS_RNG) {
42425638cf4SSascha Wildner #ifdef SAFE_RNDTEST
42525638cf4SSascha Wildner sc->sc_rndtest = rndtest_attach(dev);
42625638cf4SSascha Wildner if (sc->sc_rndtest)
42725638cf4SSascha Wildner sc->sc_harvest = rndtest_harvest;
42825638cf4SSascha Wildner else
42925638cf4SSascha Wildner sc->sc_harvest = default_harvest;
43025638cf4SSascha Wildner #else
43125638cf4SSascha Wildner sc->sc_harvest = default_harvest;
43225638cf4SSascha Wildner #endif
43325638cf4SSascha Wildner safe_rng_init(sc);
43425638cf4SSascha Wildner
43525638cf4SSascha Wildner callout_init_mp(&sc->sc_rngto);
43625638cf4SSascha Wildner callout_reset(&sc->sc_rngto, hz*safe_rnginterval, safe_rng, sc);
43725638cf4SSascha Wildner }
43825638cf4SSascha Wildner #endif /* SAFE_NO_RNG */
43925638cf4SSascha Wildner #ifdef SAFE_DEBUG
44025638cf4SSascha Wildner safec = sc; /* for use by hw.safe.dump */
44125638cf4SSascha Wildner #endif
44225638cf4SSascha Wildner return (0);
44325638cf4SSascha Wildner bad4:
44425638cf4SSascha Wildner crypto_unregister_all(sc->sc_cid);
44525638cf4SSascha Wildner bad3:
44625638cf4SSascha Wildner bus_teardown_intr(dev, sc->sc_irq, sc->sc_ih);
44725638cf4SSascha Wildner bad2:
44825638cf4SSascha Wildner bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq);
44925638cf4SSascha Wildner bad1:
45025638cf4SSascha Wildner bus_release_resource(dev, SYS_RES_MEMORY, BS_BAR, sc->sc_sr);
45125638cf4SSascha Wildner bad:
45225638cf4SSascha Wildner return (ENXIO);
45325638cf4SSascha Wildner }
45425638cf4SSascha Wildner
45525638cf4SSascha Wildner /*
45625638cf4SSascha Wildner * Detach a device that successfully probed.
45725638cf4SSascha Wildner */
45825638cf4SSascha Wildner static int
safe_detach(device_t dev)45925638cf4SSascha Wildner safe_detach(device_t dev)
46025638cf4SSascha Wildner {
46125638cf4SSascha Wildner struct safe_softc *sc = device_get_softc(dev);
46225638cf4SSascha Wildner
46325638cf4SSascha Wildner /* XXX wait/abort active ops */
46425638cf4SSascha Wildner
46525638cf4SSascha Wildner WRITE_REG(sc, SAFE_HI_MASK, 0); /* disable interrupts */
46625638cf4SSascha Wildner
46725638cf4SSascha Wildner callout_stop(&sc->sc_rngto);
46825638cf4SSascha Wildner
46925638cf4SSascha Wildner crypto_unregister_all(sc->sc_cid);
47025638cf4SSascha Wildner
47125638cf4SSascha Wildner #ifdef SAFE_RNDTEST
47225638cf4SSascha Wildner if (sc->sc_rndtest)
47325638cf4SSascha Wildner rndtest_detach(sc->sc_rndtest);
47425638cf4SSascha Wildner #endif
47525638cf4SSascha Wildner
47625638cf4SSascha Wildner safe_cleanchip(sc);
47725638cf4SSascha Wildner safe_dma_free(sc, &sc->sc_dpalloc);
47825638cf4SSascha Wildner safe_dma_free(sc, &sc->sc_spalloc);
47925638cf4SSascha Wildner lockuninit(&sc->sc_ringlock);
48025638cf4SSascha Wildner safe_dma_free(sc, &sc->sc_ringalloc);
48125638cf4SSascha Wildner
48225638cf4SSascha Wildner bus_generic_detach(dev);
48325638cf4SSascha Wildner bus_teardown_intr(dev, sc->sc_irq, sc->sc_ih);
48425638cf4SSascha Wildner bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq);
48525638cf4SSascha Wildner
48625638cf4SSascha Wildner bus_dma_tag_destroy(sc->sc_srcdmat);
48725638cf4SSascha Wildner bus_dma_tag_destroy(sc->sc_dstdmat);
48825638cf4SSascha Wildner bus_release_resource(dev, SYS_RES_MEMORY, BS_BAR, sc->sc_sr);
48925638cf4SSascha Wildner
49025638cf4SSascha Wildner return (0);
49125638cf4SSascha Wildner }
49225638cf4SSascha Wildner
49325638cf4SSascha Wildner /*
49425638cf4SSascha Wildner * Stop all chip i/o so that the kernel's probe routines don't
49525638cf4SSascha Wildner * get confused by errant DMAs when rebooting.
49625638cf4SSascha Wildner */
49725638cf4SSascha Wildner static int
safe_shutdown(device_t dev)49825638cf4SSascha Wildner safe_shutdown(device_t dev)
49925638cf4SSascha Wildner {
50025638cf4SSascha Wildner #ifdef notyet
50125638cf4SSascha Wildner safe_stop(device_get_softc(dev));
50225638cf4SSascha Wildner #endif
50325638cf4SSascha Wildner return (0);
50425638cf4SSascha Wildner }
50525638cf4SSascha Wildner
50625638cf4SSascha Wildner /*
50725638cf4SSascha Wildner * Device suspend routine.
50825638cf4SSascha Wildner */
50925638cf4SSascha Wildner static int
safe_suspend(device_t dev)51025638cf4SSascha Wildner safe_suspend(device_t dev)
51125638cf4SSascha Wildner {
51225638cf4SSascha Wildner struct safe_softc *sc = device_get_softc(dev);
51325638cf4SSascha Wildner
51425638cf4SSascha Wildner #ifdef notyet
51525638cf4SSascha Wildner /* XXX stop the device and save PCI settings */
51625638cf4SSascha Wildner #endif
51725638cf4SSascha Wildner sc->sc_suspended = 1;
51825638cf4SSascha Wildner
51925638cf4SSascha Wildner return (0);
52025638cf4SSascha Wildner }
52125638cf4SSascha Wildner
52225638cf4SSascha Wildner static int
safe_resume(device_t dev)52325638cf4SSascha Wildner safe_resume(device_t dev)
52425638cf4SSascha Wildner {
52525638cf4SSascha Wildner struct safe_softc *sc = device_get_softc(dev);
52625638cf4SSascha Wildner
52725638cf4SSascha Wildner #ifdef notyet
52825638cf4SSascha Wildner /* XXX retore PCI settings and start the device */
52925638cf4SSascha Wildner #endif
53025638cf4SSascha Wildner sc->sc_suspended = 0;
53125638cf4SSascha Wildner return (0);
53225638cf4SSascha Wildner }
53325638cf4SSascha Wildner
53425638cf4SSascha Wildner /*
53525638cf4SSascha Wildner * SafeXcel Interrupt routine
53625638cf4SSascha Wildner */
53725638cf4SSascha Wildner static void
safe_intr(void * arg)53825638cf4SSascha Wildner safe_intr(void *arg)
53925638cf4SSascha Wildner {
54025638cf4SSascha Wildner struct safe_softc *sc = arg;
54125638cf4SSascha Wildner volatile u_int32_t stat;
54225638cf4SSascha Wildner
54325638cf4SSascha Wildner stat = READ_REG(sc, SAFE_HM_STAT);
54425638cf4SSascha Wildner if (stat == 0) /* shared irq, not for us */
54525638cf4SSascha Wildner return;
54625638cf4SSascha Wildner
54725638cf4SSascha Wildner WRITE_REG(sc, SAFE_HI_CLR, stat); /* IACK */
54825638cf4SSascha Wildner
54925638cf4SSascha Wildner if ((stat & SAFE_INT_PE_DDONE)) {
55025638cf4SSascha Wildner /*
55125638cf4SSascha Wildner * Descriptor(s) done; scan the ring and
55225638cf4SSascha Wildner * process completed operations.
55325638cf4SSascha Wildner */
55425638cf4SSascha Wildner lockmgr(&sc->sc_ringlock, LK_EXCLUSIVE);
55525638cf4SSascha Wildner while (sc->sc_back != sc->sc_front) {
55625638cf4SSascha Wildner struct safe_ringentry *re = sc->sc_back;
55725638cf4SSascha Wildner #ifdef SAFE_DEBUG
55825638cf4SSascha Wildner if (safe_debug) {
55925638cf4SSascha Wildner safe_dump_ringstate(sc, __func__);
56025638cf4SSascha Wildner safe_dump_request(sc, __func__, re);
56125638cf4SSascha Wildner }
56225638cf4SSascha Wildner #endif
56325638cf4SSascha Wildner /*
56425638cf4SSascha Wildner * safe_process marks ring entries that were allocated
56525638cf4SSascha Wildner * but not used with a csr of zero. This insures the
56625638cf4SSascha Wildner * ring front pointer never needs to be set backwards
56725638cf4SSascha Wildner * in the event that an entry is allocated but not used
56825638cf4SSascha Wildner * because of a setup error.
56925638cf4SSascha Wildner */
57025638cf4SSascha Wildner if (re->re_desc.d_csr != 0) {
57125638cf4SSascha Wildner if (!SAFE_PE_CSR_IS_DONE(re->re_desc.d_csr))
57225638cf4SSascha Wildner break;
57325638cf4SSascha Wildner if (!SAFE_PE_LEN_IS_DONE(re->re_desc.d_len))
57425638cf4SSascha Wildner break;
57525638cf4SSascha Wildner sc->sc_nqchip--;
57625638cf4SSascha Wildner safe_callback(sc, re);
57725638cf4SSascha Wildner }
57825638cf4SSascha Wildner if (++(sc->sc_back) == sc->sc_ringtop)
57925638cf4SSascha Wildner sc->sc_back = sc->sc_ring;
58025638cf4SSascha Wildner }
58125638cf4SSascha Wildner lockmgr(&sc->sc_ringlock, LK_RELEASE);
58225638cf4SSascha Wildner }
58325638cf4SSascha Wildner
58425638cf4SSascha Wildner /*
58525638cf4SSascha Wildner * Check to see if we got any DMA Error
58625638cf4SSascha Wildner */
58725638cf4SSascha Wildner if (stat & SAFE_INT_PE_ERROR) {
58825638cf4SSascha Wildner DPRINTF(("dmaerr dmastat %08x\n",
58925638cf4SSascha Wildner READ_REG(sc, SAFE_PE_DMASTAT)));
59025638cf4SSascha Wildner safestats.st_dmaerr++;
59125638cf4SSascha Wildner safe_totalreset(sc);
59225638cf4SSascha Wildner #if 0
59325638cf4SSascha Wildner safe_feed(sc);
59425638cf4SSascha Wildner #endif
59525638cf4SSascha Wildner }
59625638cf4SSascha Wildner
59725638cf4SSascha Wildner if (sc->sc_needwakeup) { /* XXX check high watermark */
59825638cf4SSascha Wildner int wakeup = sc->sc_needwakeup & (CRYPTO_SYMQ|CRYPTO_ASYMQ);
59925638cf4SSascha Wildner DPRINTF(("%s: wakeup crypto %x\n", __func__,
60025638cf4SSascha Wildner sc->sc_needwakeup));
60125638cf4SSascha Wildner sc->sc_needwakeup &= ~wakeup;
60225638cf4SSascha Wildner crypto_unblock(sc->sc_cid, wakeup);
60325638cf4SSascha Wildner }
60425638cf4SSascha Wildner }
60525638cf4SSascha Wildner
60625638cf4SSascha Wildner /*
60725638cf4SSascha Wildner * safe_feed() - post a request to chip
60825638cf4SSascha Wildner */
60925638cf4SSascha Wildner static void
safe_feed(struct safe_softc * sc,struct safe_ringentry * re)61025638cf4SSascha Wildner safe_feed(struct safe_softc *sc, struct safe_ringentry *re)
61125638cf4SSascha Wildner {
61225638cf4SSascha Wildner bus_dmamap_sync(sc->sc_srcdmat, re->re_src_map, BUS_DMASYNC_PREWRITE);
61325638cf4SSascha Wildner if (re->re_dst_map != NULL)
61425638cf4SSascha Wildner bus_dmamap_sync(sc->sc_dstdmat, re->re_dst_map,
61525638cf4SSascha Wildner BUS_DMASYNC_PREREAD);
61625638cf4SSascha Wildner /* XXX have no smaller granularity */
61725638cf4SSascha Wildner safe_dma_sync(&sc->sc_ringalloc,
61825638cf4SSascha Wildner BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
61925638cf4SSascha Wildner safe_dma_sync(&sc->sc_spalloc, BUS_DMASYNC_PREWRITE);
62025638cf4SSascha Wildner safe_dma_sync(&sc->sc_dpalloc, BUS_DMASYNC_PREWRITE);
62125638cf4SSascha Wildner
62225638cf4SSascha Wildner #ifdef SAFE_DEBUG
62325638cf4SSascha Wildner if (safe_debug) {
62425638cf4SSascha Wildner safe_dump_ringstate(sc, __func__);
62525638cf4SSascha Wildner safe_dump_request(sc, __func__, re);
62625638cf4SSascha Wildner }
62725638cf4SSascha Wildner #endif
62825638cf4SSascha Wildner sc->sc_nqchip++;
62925638cf4SSascha Wildner if (sc->sc_nqchip > safestats.st_maxqchip)
63025638cf4SSascha Wildner safestats.st_maxqchip = sc->sc_nqchip;
63125638cf4SSascha Wildner /* poke h/w to check descriptor ring, any value can be written */
63225638cf4SSascha Wildner WRITE_REG(sc, SAFE_HI_RD_DESCR, 0);
63325638cf4SSascha Wildner }
63425638cf4SSascha Wildner
63525638cf4SSascha Wildner static void
safe_setup_enckey(struct safe_session * ses,caddr_t key)63625638cf4SSascha Wildner safe_setup_enckey(struct safe_session *ses, caddr_t key)
63725638cf4SSascha Wildner {
63825638cf4SSascha Wildner int i;
63925638cf4SSascha Wildner
64025638cf4SSascha Wildner bcopy(key, ses->ses_key, ses->ses_klen / 8);
64125638cf4SSascha Wildner
64225638cf4SSascha Wildner /* PE is little-endian, insure proper byte order */
643249483dfSAaron LI for (i = 0; i < nitems(ses->ses_key); i++)
64425638cf4SSascha Wildner ses->ses_key[i] = htole32(ses->ses_key[i]);
64525638cf4SSascha Wildner }
64625638cf4SSascha Wildner
64725638cf4SSascha Wildner static void
safe_setup_mackey(struct safe_session * ses,int algo,caddr_t key,int klen)64825638cf4SSascha Wildner safe_setup_mackey(struct safe_session *ses, int algo, caddr_t key, int klen)
64925638cf4SSascha Wildner {
65025638cf4SSascha Wildner MD5_CTX md5ctx;
65125638cf4SSascha Wildner SHA1_CTX sha1ctx;
65225638cf4SSascha Wildner int i;
65325638cf4SSascha Wildner
65425638cf4SSascha Wildner
65525638cf4SSascha Wildner for (i = 0; i < klen; i++)
65625638cf4SSascha Wildner key[i] ^= HMAC_IPAD_VAL;
65725638cf4SSascha Wildner
65825638cf4SSascha Wildner if (algo == CRYPTO_MD5_HMAC) {
65925638cf4SSascha Wildner MD5Init(&md5ctx);
66025638cf4SSascha Wildner MD5Update(&md5ctx, key, klen);
66125638cf4SSascha Wildner MD5Update(&md5ctx, hmac_ipad_buffer, MD5_HMAC_BLOCK_LEN - klen);
6627367f280SMatthew Dillon /* gcc8 craps out on -Warray-bounds w/ optimized bcopy */
6637367f280SMatthew Dillon _bcopy(&md5ctx.A, ses->ses_hminner, sizeof(md5ctx.A) * 4);
66425638cf4SSascha Wildner } else {
66525638cf4SSascha Wildner SHA1Init(&sha1ctx);
66625638cf4SSascha Wildner SHA1Update(&sha1ctx, key, klen);
66725638cf4SSascha Wildner SHA1Update(&sha1ctx, hmac_ipad_buffer,
66825638cf4SSascha Wildner SHA1_HMAC_BLOCK_LEN - klen);
66925638cf4SSascha Wildner bcopy(sha1ctx.h.b32, ses->ses_hminner, sizeof(sha1ctx.h.b32));
67025638cf4SSascha Wildner }
67125638cf4SSascha Wildner
67225638cf4SSascha Wildner for (i = 0; i < klen; i++)
67325638cf4SSascha Wildner key[i] ^= (HMAC_IPAD_VAL ^ HMAC_OPAD_VAL);
67425638cf4SSascha Wildner
67525638cf4SSascha Wildner if (algo == CRYPTO_MD5_HMAC) {
67625638cf4SSascha Wildner MD5Init(&md5ctx);
67725638cf4SSascha Wildner MD5Update(&md5ctx, key, klen);
67825638cf4SSascha Wildner MD5Update(&md5ctx, hmac_opad_buffer, MD5_HMAC_BLOCK_LEN - klen);
6797367f280SMatthew Dillon /* gcc8 craps out on -Warray-bounds w/ optimized bcopy */
6807367f280SMatthew Dillon _bcopy(&md5ctx.A, ses->ses_hmouter, sizeof(md5ctx.A) * 4);
68125638cf4SSascha Wildner } else {
68225638cf4SSascha Wildner SHA1Init(&sha1ctx);
68325638cf4SSascha Wildner SHA1Update(&sha1ctx, key, klen);
68425638cf4SSascha Wildner SHA1Update(&sha1ctx, hmac_opad_buffer,
68525638cf4SSascha Wildner SHA1_HMAC_BLOCK_LEN - klen);
68625638cf4SSascha Wildner bcopy(sha1ctx.h.b32, ses->ses_hmouter, sizeof(sha1ctx.h.b32));
68725638cf4SSascha Wildner }
68825638cf4SSascha Wildner
68925638cf4SSascha Wildner for (i = 0; i < klen; i++)
69025638cf4SSascha Wildner key[i] ^= HMAC_OPAD_VAL;
69125638cf4SSascha Wildner
69225638cf4SSascha Wildner /* PE is little-endian, insure proper byte order */
693249483dfSAaron LI for (i = 0; i < nitems(ses->ses_hminner); i++) {
69425638cf4SSascha Wildner ses->ses_hminner[i] = htole32(ses->ses_hminner[i]);
69525638cf4SSascha Wildner ses->ses_hmouter[i] = htole32(ses->ses_hmouter[i]);
69625638cf4SSascha Wildner }
69725638cf4SSascha Wildner }
69825638cf4SSascha Wildner
69925638cf4SSascha Wildner /*
70025638cf4SSascha Wildner * Allocate a new 'session' and return an encoded session id. 'sidp'
70125638cf4SSascha Wildner * contains our registration id, and should contain an encoded session
70225638cf4SSascha Wildner * id on successful allocation.
70325638cf4SSascha Wildner */
70425638cf4SSascha Wildner static int
safe_newsession(device_t dev,u_int32_t * sidp,struct cryptoini * cri)70525638cf4SSascha Wildner safe_newsession(device_t dev, u_int32_t *sidp, struct cryptoini *cri)
70625638cf4SSascha Wildner {
70725638cf4SSascha Wildner struct safe_softc *sc = device_get_softc(dev);
70825638cf4SSascha Wildner struct cryptoini *c, *encini = NULL, *macini = NULL;
70925638cf4SSascha Wildner struct safe_session *ses = NULL;
71025638cf4SSascha Wildner int sesn;
71125638cf4SSascha Wildner
71225638cf4SSascha Wildner if (sidp == NULL || cri == NULL || sc == NULL)
71325638cf4SSascha Wildner return (EINVAL);
71425638cf4SSascha Wildner
71525638cf4SSascha Wildner for (c = cri; c != NULL; c = c->cri_next) {
71625638cf4SSascha Wildner if (c->cri_alg == CRYPTO_MD5_HMAC ||
71725638cf4SSascha Wildner c->cri_alg == CRYPTO_SHA1_HMAC ||
71825638cf4SSascha Wildner c->cri_alg == CRYPTO_NULL_HMAC) {
71925638cf4SSascha Wildner if (macini)
72025638cf4SSascha Wildner return (EINVAL);
72125638cf4SSascha Wildner macini = c;
72225638cf4SSascha Wildner } else if (c->cri_alg == CRYPTO_DES_CBC ||
72325638cf4SSascha Wildner c->cri_alg == CRYPTO_3DES_CBC ||
72425638cf4SSascha Wildner c->cri_alg == CRYPTO_AES_CBC ||
72525638cf4SSascha Wildner c->cri_alg == CRYPTO_NULL_CBC) {
72625638cf4SSascha Wildner if (encini)
72725638cf4SSascha Wildner return (EINVAL);
72825638cf4SSascha Wildner encini = c;
72925638cf4SSascha Wildner } else
73025638cf4SSascha Wildner return (EINVAL);
73125638cf4SSascha Wildner }
73225638cf4SSascha Wildner if (encini == NULL && macini == NULL)
73325638cf4SSascha Wildner return (EINVAL);
73425638cf4SSascha Wildner if (encini) { /* validate key length */
73525638cf4SSascha Wildner switch (encini->cri_alg) {
73625638cf4SSascha Wildner case CRYPTO_DES_CBC:
73725638cf4SSascha Wildner if (encini->cri_klen != 64)
73825638cf4SSascha Wildner return (EINVAL);
73925638cf4SSascha Wildner break;
74025638cf4SSascha Wildner case CRYPTO_3DES_CBC:
74125638cf4SSascha Wildner if (encini->cri_klen != 192)
74225638cf4SSascha Wildner return (EINVAL);
74325638cf4SSascha Wildner break;
74425638cf4SSascha Wildner case CRYPTO_AES_CBC:
74525638cf4SSascha Wildner if (encini->cri_klen != 128 &&
74625638cf4SSascha Wildner encini->cri_klen != 192 &&
74725638cf4SSascha Wildner encini->cri_klen != 256)
74825638cf4SSascha Wildner return (EINVAL);
74925638cf4SSascha Wildner break;
75025638cf4SSascha Wildner }
75125638cf4SSascha Wildner }
75225638cf4SSascha Wildner
75325638cf4SSascha Wildner if (sc->sc_sessions == NULL) {
75425638cf4SSascha Wildner ses = sc->sc_sessions = (struct safe_session *)kmalloc(
75525638cf4SSascha Wildner sizeof(struct safe_session), M_DEVBUF, M_NOWAIT);
75625638cf4SSascha Wildner if (ses == NULL)
75725638cf4SSascha Wildner return (ENOMEM);
75825638cf4SSascha Wildner sesn = 0;
75925638cf4SSascha Wildner sc->sc_nsessions = 1;
76025638cf4SSascha Wildner } else {
76125638cf4SSascha Wildner for (sesn = 0; sesn < sc->sc_nsessions; sesn++) {
76225638cf4SSascha Wildner if (sc->sc_sessions[sesn].ses_used == 0) {
76325638cf4SSascha Wildner ses = &sc->sc_sessions[sesn];
76425638cf4SSascha Wildner break;
76525638cf4SSascha Wildner }
76625638cf4SSascha Wildner }
76725638cf4SSascha Wildner
76825638cf4SSascha Wildner if (ses == NULL) {
76925638cf4SSascha Wildner sesn = sc->sc_nsessions;
77025638cf4SSascha Wildner ses = (struct safe_session *)kmalloc((sesn + 1) *
77125638cf4SSascha Wildner sizeof(struct safe_session), M_DEVBUF, M_NOWAIT);
77225638cf4SSascha Wildner if (ses == NULL)
77325638cf4SSascha Wildner return (ENOMEM);
77425638cf4SSascha Wildner bcopy(sc->sc_sessions, ses, sesn *
77525638cf4SSascha Wildner sizeof(struct safe_session));
77625638cf4SSascha Wildner bzero(sc->sc_sessions, sesn *
77725638cf4SSascha Wildner sizeof(struct safe_session));
77825638cf4SSascha Wildner kfree(sc->sc_sessions, M_DEVBUF);
77925638cf4SSascha Wildner sc->sc_sessions = ses;
78025638cf4SSascha Wildner ses = &sc->sc_sessions[sesn];
78125638cf4SSascha Wildner sc->sc_nsessions++;
78225638cf4SSascha Wildner }
78325638cf4SSascha Wildner }
78425638cf4SSascha Wildner
78525638cf4SSascha Wildner bzero(ses, sizeof(struct safe_session));
78625638cf4SSascha Wildner ses->ses_used = 1;
78725638cf4SSascha Wildner
78825638cf4SSascha Wildner if (encini) {
78925638cf4SSascha Wildner /* get an IV */
79025638cf4SSascha Wildner /* XXX may read fewer than requested */
791*1cb34a03SMatthew Dillon read_random(ses->ses_iv, sizeof(ses->ses_iv), 0);
79225638cf4SSascha Wildner
79325638cf4SSascha Wildner ses->ses_klen = encini->cri_klen;
79425638cf4SSascha Wildner if (encini->cri_key != NULL)
79525638cf4SSascha Wildner safe_setup_enckey(ses, encini->cri_key);
79625638cf4SSascha Wildner }
79725638cf4SSascha Wildner
79825638cf4SSascha Wildner if (macini) {
79925638cf4SSascha Wildner ses->ses_mlen = macini->cri_mlen;
80025638cf4SSascha Wildner if (ses->ses_mlen == 0) {
80125638cf4SSascha Wildner if (macini->cri_alg == CRYPTO_MD5_HMAC)
80225638cf4SSascha Wildner ses->ses_mlen = MD5_HASH_LEN;
80325638cf4SSascha Wildner else
80425638cf4SSascha Wildner ses->ses_mlen = SHA1_HASH_LEN;
80525638cf4SSascha Wildner }
80625638cf4SSascha Wildner
80725638cf4SSascha Wildner if (macini->cri_key != NULL) {
80825638cf4SSascha Wildner safe_setup_mackey(ses, macini->cri_alg, macini->cri_key,
80925638cf4SSascha Wildner macini->cri_klen / 8);
81025638cf4SSascha Wildner }
81125638cf4SSascha Wildner }
81225638cf4SSascha Wildner
81325638cf4SSascha Wildner *sidp = SAFE_SID(device_get_unit(sc->sc_dev), sesn);
81425638cf4SSascha Wildner return (0);
81525638cf4SSascha Wildner }
81625638cf4SSascha Wildner
81725638cf4SSascha Wildner /*
81825638cf4SSascha Wildner * Deallocate a session.
81925638cf4SSascha Wildner */
82025638cf4SSascha Wildner static int
safe_freesession(device_t dev,u_int64_t tid)82125638cf4SSascha Wildner safe_freesession(device_t dev, u_int64_t tid)
82225638cf4SSascha Wildner {
82325638cf4SSascha Wildner struct safe_softc *sc = device_get_softc(dev);
82425638cf4SSascha Wildner int session, ret;
82525638cf4SSascha Wildner u_int32_t sid = ((u_int32_t) tid) & 0xffffffff;
82625638cf4SSascha Wildner
82725638cf4SSascha Wildner if (sc == NULL)
82825638cf4SSascha Wildner return (EINVAL);
82925638cf4SSascha Wildner
83025638cf4SSascha Wildner session = SAFE_SESSION(sid);
83125638cf4SSascha Wildner if (session < sc->sc_nsessions) {
83225638cf4SSascha Wildner bzero(&sc->sc_sessions[session], sizeof(sc->sc_sessions[session]));
83325638cf4SSascha Wildner ret = 0;
83425638cf4SSascha Wildner } else
83525638cf4SSascha Wildner ret = EINVAL;
83625638cf4SSascha Wildner return (ret);
83725638cf4SSascha Wildner }
83825638cf4SSascha Wildner
83925638cf4SSascha Wildner static void
safe_op_cb(void * arg,bus_dma_segment_t * seg,int nsegs,bus_size_t mapsize,int error)84025638cf4SSascha Wildner safe_op_cb(void *arg, bus_dma_segment_t *seg, int nsegs, bus_size_t mapsize, int error)
84125638cf4SSascha Wildner {
84225638cf4SSascha Wildner struct safe_operand *op = arg;
84325638cf4SSascha Wildner
84425638cf4SSascha Wildner DPRINTF(("%s: mapsize %u nsegs %d error %d\n", __func__,
84525638cf4SSascha Wildner (u_int) mapsize, nsegs, error));
84625638cf4SSascha Wildner if (error != 0)
84725638cf4SSascha Wildner return;
84825638cf4SSascha Wildner op->mapsize = mapsize;
84925638cf4SSascha Wildner op->nsegs = nsegs;
85025638cf4SSascha Wildner bcopy(seg, op->segs, nsegs * sizeof (seg[0]));
85125638cf4SSascha Wildner }
85225638cf4SSascha Wildner
85325638cf4SSascha Wildner static int
safe_process(device_t dev,struct cryptop * crp,int hint)85425638cf4SSascha Wildner safe_process(device_t dev, struct cryptop *crp, int hint)
85525638cf4SSascha Wildner {
85625638cf4SSascha Wildner struct safe_softc *sc = device_get_softc(dev);
85725638cf4SSascha Wildner int err = 0, i, nicealign, uniform;
85825638cf4SSascha Wildner struct cryptodesc *crd1, *crd2, *maccrd, *enccrd;
85925638cf4SSascha Wildner int bypass, oplen, ivsize;
86025638cf4SSascha Wildner caddr_t iv;
86125638cf4SSascha Wildner int16_t coffset;
86225638cf4SSascha Wildner struct safe_session *ses;
86325638cf4SSascha Wildner struct safe_ringentry *re;
86425638cf4SSascha Wildner struct safe_sarec *sa;
86525638cf4SSascha Wildner struct safe_pdesc *pd;
86625638cf4SSascha Wildner u_int32_t cmd0, cmd1, staterec;
86725638cf4SSascha Wildner
86825638cf4SSascha Wildner if (crp == NULL || crp->crp_callback == NULL || sc == NULL) {
86925638cf4SSascha Wildner safestats.st_invalid++;
87025638cf4SSascha Wildner return (EINVAL);
87125638cf4SSascha Wildner }
87225638cf4SSascha Wildner if (SAFE_SESSION(crp->crp_sid) >= sc->sc_nsessions) {
87325638cf4SSascha Wildner safestats.st_badsession++;
87425638cf4SSascha Wildner return (EINVAL);
87525638cf4SSascha Wildner }
87625638cf4SSascha Wildner
87725638cf4SSascha Wildner lockmgr(&sc->sc_ringlock, LK_EXCLUSIVE);
87825638cf4SSascha Wildner if (sc->sc_front == sc->sc_back && sc->sc_nqchip != 0) {
87925638cf4SSascha Wildner safestats.st_ringfull++;
88025638cf4SSascha Wildner sc->sc_needwakeup |= CRYPTO_SYMQ;
88125638cf4SSascha Wildner lockmgr(&sc->sc_ringlock, LK_RELEASE);
88225638cf4SSascha Wildner return (ERESTART);
88325638cf4SSascha Wildner }
88425638cf4SSascha Wildner re = sc->sc_front;
88525638cf4SSascha Wildner
88625638cf4SSascha Wildner staterec = re->re_sa.sa_staterec; /* save */
88725638cf4SSascha Wildner /* NB: zero everything but the PE descriptor */
88825638cf4SSascha Wildner bzero(&re->re_sa, sizeof(struct safe_ringentry) - sizeof(re->re_desc));
88925638cf4SSascha Wildner re->re_sa.sa_staterec = staterec; /* restore */
89025638cf4SSascha Wildner
89125638cf4SSascha Wildner re->re_crp = crp;
89225638cf4SSascha Wildner re->re_sesn = SAFE_SESSION(crp->crp_sid);
89325638cf4SSascha Wildner
89425638cf4SSascha Wildner if (crp->crp_flags & CRYPTO_F_IMBUF) {
89525638cf4SSascha Wildner re->re_src_m = (struct mbuf *)crp->crp_buf;
89625638cf4SSascha Wildner re->re_dst_m = (struct mbuf *)crp->crp_buf;
89725638cf4SSascha Wildner } else if (crp->crp_flags & CRYPTO_F_IOV) {
89825638cf4SSascha Wildner re->re_src_io = (struct uio *)crp->crp_buf;
89925638cf4SSascha Wildner re->re_dst_io = (struct uio *)crp->crp_buf;
90025638cf4SSascha Wildner } else {
90125638cf4SSascha Wildner safestats.st_badflags++;
90225638cf4SSascha Wildner err = EINVAL;
90325638cf4SSascha Wildner goto errout; /* XXX we don't handle contiguous blocks! */
90425638cf4SSascha Wildner }
90525638cf4SSascha Wildner
90625638cf4SSascha Wildner sa = &re->re_sa;
90725638cf4SSascha Wildner ses = &sc->sc_sessions[re->re_sesn];
90825638cf4SSascha Wildner
90925638cf4SSascha Wildner crd1 = crp->crp_desc;
91025638cf4SSascha Wildner if (crd1 == NULL) {
91125638cf4SSascha Wildner safestats.st_nodesc++;
91225638cf4SSascha Wildner err = EINVAL;
91325638cf4SSascha Wildner goto errout;
91425638cf4SSascha Wildner }
91525638cf4SSascha Wildner crd2 = crd1->crd_next;
91625638cf4SSascha Wildner
91725638cf4SSascha Wildner cmd0 = SAFE_SA_CMD0_BASIC; /* basic group operation */
91825638cf4SSascha Wildner cmd1 = 0;
91925638cf4SSascha Wildner if (crd2 == NULL) {
92025638cf4SSascha Wildner if (crd1->crd_alg == CRYPTO_MD5_HMAC ||
92125638cf4SSascha Wildner crd1->crd_alg == CRYPTO_SHA1_HMAC ||
92225638cf4SSascha Wildner crd1->crd_alg == CRYPTO_NULL_HMAC) {
92325638cf4SSascha Wildner maccrd = crd1;
92425638cf4SSascha Wildner enccrd = NULL;
92525638cf4SSascha Wildner cmd0 |= SAFE_SA_CMD0_OP_HASH;
92625638cf4SSascha Wildner } else if (crd1->crd_alg == CRYPTO_DES_CBC ||
92725638cf4SSascha Wildner crd1->crd_alg == CRYPTO_3DES_CBC ||
92825638cf4SSascha Wildner crd1->crd_alg == CRYPTO_AES_CBC ||
92925638cf4SSascha Wildner crd1->crd_alg == CRYPTO_NULL_CBC) {
93025638cf4SSascha Wildner maccrd = NULL;
93125638cf4SSascha Wildner enccrd = crd1;
93225638cf4SSascha Wildner cmd0 |= SAFE_SA_CMD0_OP_CRYPT;
93325638cf4SSascha Wildner } else {
93425638cf4SSascha Wildner safestats.st_badalg++;
93525638cf4SSascha Wildner err = EINVAL;
93625638cf4SSascha Wildner goto errout;
93725638cf4SSascha Wildner }
93825638cf4SSascha Wildner } else {
93925638cf4SSascha Wildner if ((crd1->crd_alg == CRYPTO_MD5_HMAC ||
94025638cf4SSascha Wildner crd1->crd_alg == CRYPTO_SHA1_HMAC ||
94125638cf4SSascha Wildner crd1->crd_alg == CRYPTO_NULL_HMAC) &&
94225638cf4SSascha Wildner (crd2->crd_alg == CRYPTO_DES_CBC ||
94325638cf4SSascha Wildner crd2->crd_alg == CRYPTO_3DES_CBC ||
94425638cf4SSascha Wildner crd2->crd_alg == CRYPTO_AES_CBC ||
94525638cf4SSascha Wildner crd2->crd_alg == CRYPTO_NULL_CBC) &&
94625638cf4SSascha Wildner ((crd2->crd_flags & CRD_F_ENCRYPT) == 0)) {
94725638cf4SSascha Wildner maccrd = crd1;
94825638cf4SSascha Wildner enccrd = crd2;
94925638cf4SSascha Wildner } else if ((crd1->crd_alg == CRYPTO_DES_CBC ||
95025638cf4SSascha Wildner crd1->crd_alg == CRYPTO_3DES_CBC ||
95125638cf4SSascha Wildner crd1->crd_alg == CRYPTO_AES_CBC ||
95225638cf4SSascha Wildner crd1->crd_alg == CRYPTO_NULL_CBC) &&
95325638cf4SSascha Wildner (crd2->crd_alg == CRYPTO_MD5_HMAC ||
95425638cf4SSascha Wildner crd2->crd_alg == CRYPTO_SHA1_HMAC ||
95525638cf4SSascha Wildner crd2->crd_alg == CRYPTO_NULL_HMAC) &&
95625638cf4SSascha Wildner (crd1->crd_flags & CRD_F_ENCRYPT)) {
95725638cf4SSascha Wildner enccrd = crd1;
95825638cf4SSascha Wildner maccrd = crd2;
95925638cf4SSascha Wildner } else {
96025638cf4SSascha Wildner safestats.st_badalg++;
96125638cf4SSascha Wildner err = EINVAL;
96225638cf4SSascha Wildner goto errout;
96325638cf4SSascha Wildner }
96425638cf4SSascha Wildner cmd0 |= SAFE_SA_CMD0_OP_BOTH;
96525638cf4SSascha Wildner }
96625638cf4SSascha Wildner
96725638cf4SSascha Wildner if (enccrd) {
96825638cf4SSascha Wildner if (enccrd->crd_flags & CRD_F_KEY_EXPLICIT)
96925638cf4SSascha Wildner safe_setup_enckey(ses, enccrd->crd_key);
97025638cf4SSascha Wildner
97125638cf4SSascha Wildner if (enccrd->crd_alg == CRYPTO_DES_CBC) {
97225638cf4SSascha Wildner cmd0 |= SAFE_SA_CMD0_DES;
97325638cf4SSascha Wildner cmd1 |= SAFE_SA_CMD1_CBC;
97425638cf4SSascha Wildner ivsize = 2*sizeof(u_int32_t);
97525638cf4SSascha Wildner } else if (enccrd->crd_alg == CRYPTO_3DES_CBC) {
97625638cf4SSascha Wildner cmd0 |= SAFE_SA_CMD0_3DES;
97725638cf4SSascha Wildner cmd1 |= SAFE_SA_CMD1_CBC;
97825638cf4SSascha Wildner ivsize = 2*sizeof(u_int32_t);
97925638cf4SSascha Wildner } else if (enccrd->crd_alg == CRYPTO_AES_CBC) {
98025638cf4SSascha Wildner cmd0 |= SAFE_SA_CMD0_AES;
98125638cf4SSascha Wildner cmd1 |= SAFE_SA_CMD1_CBC;
98225638cf4SSascha Wildner if (ses->ses_klen == 128)
98325638cf4SSascha Wildner cmd1 |= SAFE_SA_CMD1_AES128;
98425638cf4SSascha Wildner else if (ses->ses_klen == 192)
98525638cf4SSascha Wildner cmd1 |= SAFE_SA_CMD1_AES192;
98625638cf4SSascha Wildner else
98725638cf4SSascha Wildner cmd1 |= SAFE_SA_CMD1_AES256;
98825638cf4SSascha Wildner ivsize = 4*sizeof(u_int32_t);
98925638cf4SSascha Wildner } else {
99025638cf4SSascha Wildner cmd0 |= SAFE_SA_CMD0_CRYPT_NULL;
99125638cf4SSascha Wildner ivsize = 0;
99225638cf4SSascha Wildner }
99325638cf4SSascha Wildner
99425638cf4SSascha Wildner /*
99525638cf4SSascha Wildner * Setup encrypt/decrypt state. When using basic ops
99625638cf4SSascha Wildner * we can't use an inline IV because hash/crypt offset
99725638cf4SSascha Wildner * must be from the end of the IV to the start of the
99825638cf4SSascha Wildner * crypt data and this leaves out the preceding header
99925638cf4SSascha Wildner * from the hash calculation. Instead we place the IV
100025638cf4SSascha Wildner * in the state record and set the hash/crypt offset to
100125638cf4SSascha Wildner * copy both the header+IV.
100225638cf4SSascha Wildner */
100325638cf4SSascha Wildner if (enccrd->crd_flags & CRD_F_ENCRYPT) {
100425638cf4SSascha Wildner cmd0 |= SAFE_SA_CMD0_OUTBOUND;
100525638cf4SSascha Wildner
100625638cf4SSascha Wildner if (enccrd->crd_flags & CRD_F_IV_EXPLICIT)
100725638cf4SSascha Wildner iv = enccrd->crd_iv;
100825638cf4SSascha Wildner else
100925638cf4SSascha Wildner iv = (caddr_t) ses->ses_iv;
101025638cf4SSascha Wildner if ((enccrd->crd_flags & CRD_F_IV_PRESENT) == 0) {
101125638cf4SSascha Wildner crypto_copyback(crp->crp_flags, crp->crp_buf,
101225638cf4SSascha Wildner enccrd->crd_inject, ivsize, iv);
101325638cf4SSascha Wildner }
101425638cf4SSascha Wildner bcopy(iv, re->re_sastate.sa_saved_iv, ivsize);
101525638cf4SSascha Wildner cmd0 |= SAFE_SA_CMD0_IVLD_STATE | SAFE_SA_CMD0_SAVEIV;
101625638cf4SSascha Wildner re->re_flags |= SAFE_QFLAGS_COPYOUTIV;
101725638cf4SSascha Wildner } else {
101825638cf4SSascha Wildner cmd0 |= SAFE_SA_CMD0_INBOUND;
101925638cf4SSascha Wildner
102025638cf4SSascha Wildner if (enccrd->crd_flags & CRD_F_IV_EXPLICIT) {
102125638cf4SSascha Wildner bcopy(enccrd->crd_iv,
102225638cf4SSascha Wildner re->re_sastate.sa_saved_iv, ivsize);
102325638cf4SSascha Wildner } else {
102425638cf4SSascha Wildner crypto_copydata(crp->crp_flags, crp->crp_buf,
102525638cf4SSascha Wildner enccrd->crd_inject, ivsize,
102625638cf4SSascha Wildner (caddr_t)re->re_sastate.sa_saved_iv);
102725638cf4SSascha Wildner }
102825638cf4SSascha Wildner cmd0 |= SAFE_SA_CMD0_IVLD_STATE;
102925638cf4SSascha Wildner }
103025638cf4SSascha Wildner /*
103125638cf4SSascha Wildner * For basic encryption use the zero pad algorithm.
103225638cf4SSascha Wildner * This pads results to an 8-byte boundary and
103325638cf4SSascha Wildner * suppresses padding verification for inbound (i.e.
103425638cf4SSascha Wildner * decrypt) operations.
103525638cf4SSascha Wildner *
103625638cf4SSascha Wildner * NB: Not sure if the 8-byte pad boundary is a problem.
103725638cf4SSascha Wildner */
103825638cf4SSascha Wildner cmd0 |= SAFE_SA_CMD0_PAD_ZERO;
103925638cf4SSascha Wildner
104025638cf4SSascha Wildner /* XXX assert key bufs have the same size */
104125638cf4SSascha Wildner bcopy(ses->ses_key, sa->sa_key, sizeof(sa->sa_key));
104225638cf4SSascha Wildner }
104325638cf4SSascha Wildner
104425638cf4SSascha Wildner if (maccrd) {
104525638cf4SSascha Wildner if (maccrd->crd_flags & CRD_F_KEY_EXPLICIT) {
104625638cf4SSascha Wildner safe_setup_mackey(ses, maccrd->crd_alg,
104725638cf4SSascha Wildner maccrd->crd_key, maccrd->crd_klen / 8);
104825638cf4SSascha Wildner }
104925638cf4SSascha Wildner
105025638cf4SSascha Wildner if (maccrd->crd_alg == CRYPTO_MD5_HMAC) {
105125638cf4SSascha Wildner cmd0 |= SAFE_SA_CMD0_MD5;
105225638cf4SSascha Wildner cmd1 |= SAFE_SA_CMD1_HMAC; /* NB: enable HMAC */
105325638cf4SSascha Wildner } else if (maccrd->crd_alg == CRYPTO_SHA1_HMAC) {
105425638cf4SSascha Wildner cmd0 |= SAFE_SA_CMD0_SHA1;
105525638cf4SSascha Wildner cmd1 |= SAFE_SA_CMD1_HMAC; /* NB: enable HMAC */
105625638cf4SSascha Wildner } else {
105725638cf4SSascha Wildner cmd0 |= SAFE_SA_CMD0_HASH_NULL;
105825638cf4SSascha Wildner }
105925638cf4SSascha Wildner /*
106025638cf4SSascha Wildner * Digest data is loaded from the SA and the hash
106125638cf4SSascha Wildner * result is saved to the state block where we
106225638cf4SSascha Wildner * retrieve it for return to the caller.
106325638cf4SSascha Wildner */
106425638cf4SSascha Wildner /* XXX assert digest bufs have the same size */
106525638cf4SSascha Wildner bcopy(ses->ses_hminner, sa->sa_indigest,
106625638cf4SSascha Wildner sizeof(sa->sa_indigest));
106725638cf4SSascha Wildner bcopy(ses->ses_hmouter, sa->sa_outdigest,
106825638cf4SSascha Wildner sizeof(sa->sa_outdigest));
106925638cf4SSascha Wildner
107025638cf4SSascha Wildner cmd0 |= SAFE_SA_CMD0_HSLD_SA | SAFE_SA_CMD0_SAVEHASH;
107125638cf4SSascha Wildner re->re_flags |= SAFE_QFLAGS_COPYOUTICV;
107225638cf4SSascha Wildner }
107325638cf4SSascha Wildner
107425638cf4SSascha Wildner if (enccrd && maccrd) {
107525638cf4SSascha Wildner /*
107625638cf4SSascha Wildner * The offset from hash data to the start of
107725638cf4SSascha Wildner * crypt data is the difference in the skips.
107825638cf4SSascha Wildner */
107925638cf4SSascha Wildner bypass = maccrd->crd_skip;
108025638cf4SSascha Wildner coffset = enccrd->crd_skip - maccrd->crd_skip;
108125638cf4SSascha Wildner if (coffset < 0) {
108225638cf4SSascha Wildner DPRINTF(("%s: hash does not precede crypt; "
108325638cf4SSascha Wildner "mac skip %u enc skip %u\n",
108425638cf4SSascha Wildner __func__, maccrd->crd_skip, enccrd->crd_skip));
108525638cf4SSascha Wildner safestats.st_skipmismatch++;
108625638cf4SSascha Wildner err = EINVAL;
108725638cf4SSascha Wildner goto errout;
108825638cf4SSascha Wildner }
108925638cf4SSascha Wildner oplen = enccrd->crd_skip + enccrd->crd_len;
109025638cf4SSascha Wildner if (maccrd->crd_skip + maccrd->crd_len != oplen) {
109125638cf4SSascha Wildner DPRINTF(("%s: hash amount %u != crypt amount %u\n",
109225638cf4SSascha Wildner __func__, maccrd->crd_skip + maccrd->crd_len,
109325638cf4SSascha Wildner oplen));
109425638cf4SSascha Wildner safestats.st_lenmismatch++;
109525638cf4SSascha Wildner err = EINVAL;
109625638cf4SSascha Wildner goto errout;
109725638cf4SSascha Wildner }
109825638cf4SSascha Wildner #ifdef SAFE_DEBUG
109925638cf4SSascha Wildner if (safe_debug) {
110025638cf4SSascha Wildner kprintf("mac: skip %d, len %d, inject %d\n",
110125638cf4SSascha Wildner maccrd->crd_skip, maccrd->crd_len,
110225638cf4SSascha Wildner maccrd->crd_inject);
110325638cf4SSascha Wildner kprintf("enc: skip %d, len %d, inject %d\n",
110425638cf4SSascha Wildner enccrd->crd_skip, enccrd->crd_len,
110525638cf4SSascha Wildner enccrd->crd_inject);
110625638cf4SSascha Wildner kprintf("bypass %d coffset %d oplen %d\n",
110725638cf4SSascha Wildner bypass, coffset, oplen);
110825638cf4SSascha Wildner }
110925638cf4SSascha Wildner #endif
111025638cf4SSascha Wildner if (coffset & 3) { /* offset must be 32-bit aligned */
111125638cf4SSascha Wildner DPRINTF(("%s: coffset %u misaligned\n",
111225638cf4SSascha Wildner __func__, coffset));
111325638cf4SSascha Wildner safestats.st_coffmisaligned++;
111425638cf4SSascha Wildner err = EINVAL;
111525638cf4SSascha Wildner goto errout;
111625638cf4SSascha Wildner }
111725638cf4SSascha Wildner coffset >>= 2;
111825638cf4SSascha Wildner if (coffset > 255) { /* offset must be <256 dwords */
111925638cf4SSascha Wildner DPRINTF(("%s: coffset %u too big\n",
112025638cf4SSascha Wildner __func__, coffset));
112125638cf4SSascha Wildner safestats.st_cofftoobig++;
112225638cf4SSascha Wildner err = EINVAL;
112325638cf4SSascha Wildner goto errout;
112425638cf4SSascha Wildner }
112525638cf4SSascha Wildner /*
112625638cf4SSascha Wildner * Tell the hardware to copy the header to the output.
112725638cf4SSascha Wildner * The header is defined as the data from the end of
112825638cf4SSascha Wildner * the bypass to the start of data to be encrypted.
112925638cf4SSascha Wildner * Typically this is the inline IV. Note that you need
113025638cf4SSascha Wildner * to do this even if src+dst are the same; it appears
113125638cf4SSascha Wildner * that w/o this bit the crypted data is written
113225638cf4SSascha Wildner * immediately after the bypass data.
113325638cf4SSascha Wildner */
113425638cf4SSascha Wildner cmd1 |= SAFE_SA_CMD1_HDRCOPY;
113525638cf4SSascha Wildner /*
113625638cf4SSascha Wildner * Disable IP header mutable bit handling. This is
113725638cf4SSascha Wildner * needed to get correct HMAC calculations.
113825638cf4SSascha Wildner */
113925638cf4SSascha Wildner cmd1 |= SAFE_SA_CMD1_MUTABLE;
114025638cf4SSascha Wildner } else {
114125638cf4SSascha Wildner if (enccrd) {
114225638cf4SSascha Wildner bypass = enccrd->crd_skip;
114325638cf4SSascha Wildner oplen = bypass + enccrd->crd_len;
114425638cf4SSascha Wildner } else {
114525638cf4SSascha Wildner bypass = maccrd->crd_skip;
114625638cf4SSascha Wildner oplen = bypass + maccrd->crd_len;
114725638cf4SSascha Wildner }
114825638cf4SSascha Wildner coffset = 0;
114925638cf4SSascha Wildner }
115025638cf4SSascha Wildner /* XXX verify multiple of 4 when using s/g */
115125638cf4SSascha Wildner if (bypass > 96) { /* bypass offset must be <= 96 bytes */
115225638cf4SSascha Wildner DPRINTF(("%s: bypass %u too big\n", __func__, bypass));
115325638cf4SSascha Wildner safestats.st_bypasstoobig++;
115425638cf4SSascha Wildner err = EINVAL;
115525638cf4SSascha Wildner goto errout;
115625638cf4SSascha Wildner }
115725638cf4SSascha Wildner
115825638cf4SSascha Wildner if (bus_dmamap_create(sc->sc_srcdmat, BUS_DMA_NOWAIT, &re->re_src_map)) {
115925638cf4SSascha Wildner safestats.st_nomap++;
116025638cf4SSascha Wildner err = ENOMEM;
116125638cf4SSascha Wildner goto errout;
116225638cf4SSascha Wildner }
116325638cf4SSascha Wildner if (crp->crp_flags & CRYPTO_F_IMBUF) {
116425638cf4SSascha Wildner if (bus_dmamap_load_mbuf(sc->sc_srcdmat, re->re_src_map,
116525638cf4SSascha Wildner re->re_src_m, safe_op_cb,
116625638cf4SSascha Wildner &re->re_src, BUS_DMA_NOWAIT) != 0) {
116725638cf4SSascha Wildner bus_dmamap_destroy(sc->sc_srcdmat, re->re_src_map);
116825638cf4SSascha Wildner re->re_src_map = NULL;
116925638cf4SSascha Wildner safestats.st_noload++;
117025638cf4SSascha Wildner err = ENOMEM;
117125638cf4SSascha Wildner goto errout;
117225638cf4SSascha Wildner }
117325638cf4SSascha Wildner } else if (crp->crp_flags & CRYPTO_F_IOV) {
117425638cf4SSascha Wildner if (bus_dmamap_load_uio(sc->sc_srcdmat, re->re_src_map,
117525638cf4SSascha Wildner re->re_src_io, safe_op_cb,
117625638cf4SSascha Wildner &re->re_src, BUS_DMA_NOWAIT) != 0) {
117725638cf4SSascha Wildner bus_dmamap_destroy(sc->sc_srcdmat, re->re_src_map);
117825638cf4SSascha Wildner re->re_src_map = NULL;
117925638cf4SSascha Wildner safestats.st_noload++;
118025638cf4SSascha Wildner err = ENOMEM;
118125638cf4SSascha Wildner goto errout;
118225638cf4SSascha Wildner }
118325638cf4SSascha Wildner }
118425638cf4SSascha Wildner nicealign = safe_dmamap_aligned(&re->re_src);
118525638cf4SSascha Wildner uniform = safe_dmamap_uniform(&re->re_src);
118625638cf4SSascha Wildner
118725638cf4SSascha Wildner DPRINTF(("src nicealign %u uniform %u nsegs %u\n",
118825638cf4SSascha Wildner nicealign, uniform, re->re_src.nsegs));
118925638cf4SSascha Wildner if (re->re_src.nsegs > 1) {
119025638cf4SSascha Wildner re->re_desc.d_src = sc->sc_spalloc.dma_paddr +
119125638cf4SSascha Wildner ((caddr_t) sc->sc_spfree - (caddr_t) sc->sc_spring);
119225638cf4SSascha Wildner for (i = 0; i < re->re_src_nsegs; i++) {
119325638cf4SSascha Wildner /* NB: no need to check if there's space */
119425638cf4SSascha Wildner pd = sc->sc_spfree;
119525638cf4SSascha Wildner if (++(sc->sc_spfree) == sc->sc_springtop)
119625638cf4SSascha Wildner sc->sc_spfree = sc->sc_spring;
119725638cf4SSascha Wildner
119825638cf4SSascha Wildner KASSERT((pd->pd_flags&3) == 0 ||
119925638cf4SSascha Wildner (pd->pd_flags&3) == SAFE_PD_DONE,
120025638cf4SSascha Wildner ("bogus source particle descriptor; flags %x",
120125638cf4SSascha Wildner pd->pd_flags));
120225638cf4SSascha Wildner pd->pd_addr = re->re_src_segs[i].ds_addr;
120325638cf4SSascha Wildner pd->pd_size = re->re_src_segs[i].ds_len;
120425638cf4SSascha Wildner pd->pd_flags = SAFE_PD_READY;
120525638cf4SSascha Wildner }
120625638cf4SSascha Wildner cmd0 |= SAFE_SA_CMD0_IGATHER;
120725638cf4SSascha Wildner } else {
120825638cf4SSascha Wildner /*
120925638cf4SSascha Wildner * No need for gather, reference the operand directly.
121025638cf4SSascha Wildner */
121125638cf4SSascha Wildner re->re_desc.d_src = re->re_src_segs[0].ds_addr;
121225638cf4SSascha Wildner }
121325638cf4SSascha Wildner
121425638cf4SSascha Wildner if (enccrd == NULL && maccrd != NULL) {
121525638cf4SSascha Wildner /*
121625638cf4SSascha Wildner * Hash op; no destination needed.
121725638cf4SSascha Wildner */
121825638cf4SSascha Wildner } else {
121925638cf4SSascha Wildner if (crp->crp_flags & CRYPTO_F_IOV) {
122025638cf4SSascha Wildner if (!nicealign) {
122125638cf4SSascha Wildner safestats.st_iovmisaligned++;
122225638cf4SSascha Wildner err = EINVAL;
122325638cf4SSascha Wildner goto errout;
122425638cf4SSascha Wildner }
122525638cf4SSascha Wildner if (uniform != 1) {
122625638cf4SSascha Wildner /*
122725638cf4SSascha Wildner * Source is not suitable for direct use as
122825638cf4SSascha Wildner * the destination. Create a new scatter/gather
122925638cf4SSascha Wildner * list based on the destination requirements
123025638cf4SSascha Wildner * and check if that's ok.
123125638cf4SSascha Wildner */
123225638cf4SSascha Wildner if (bus_dmamap_create(sc->sc_dstdmat,
123325638cf4SSascha Wildner BUS_DMA_NOWAIT, &re->re_dst_map)) {
123425638cf4SSascha Wildner safestats.st_nomap++;
123525638cf4SSascha Wildner err = ENOMEM;
123625638cf4SSascha Wildner goto errout;
123725638cf4SSascha Wildner }
123825638cf4SSascha Wildner if (bus_dmamap_load_uio(sc->sc_dstdmat,
123925638cf4SSascha Wildner re->re_dst_map, re->re_dst_io,
124025638cf4SSascha Wildner safe_op_cb, &re->re_dst,
124125638cf4SSascha Wildner BUS_DMA_NOWAIT) != 0) {
124225638cf4SSascha Wildner bus_dmamap_destroy(sc->sc_dstdmat,
124325638cf4SSascha Wildner re->re_dst_map);
124425638cf4SSascha Wildner re->re_dst_map = NULL;
124525638cf4SSascha Wildner safestats.st_noload++;
124625638cf4SSascha Wildner err = ENOMEM;
124725638cf4SSascha Wildner goto errout;
124825638cf4SSascha Wildner }
124925638cf4SSascha Wildner uniform = safe_dmamap_uniform(&re->re_dst);
125025638cf4SSascha Wildner if (!uniform) {
125125638cf4SSascha Wildner /*
125225638cf4SSascha Wildner * There's no way to handle the DMA
125325638cf4SSascha Wildner * requirements with this uio. We
125425638cf4SSascha Wildner * could create a separate DMA area for
125525638cf4SSascha Wildner * the result and then copy it back,
125625638cf4SSascha Wildner * but for now we just bail and return
125725638cf4SSascha Wildner * an error. Note that uio requests
125825638cf4SSascha Wildner * > SAFE_MAX_DSIZE are handled because
125925638cf4SSascha Wildner * the DMA map and segment list for the
126025638cf4SSascha Wildner * destination wil result in a
126125638cf4SSascha Wildner * destination particle list that does
126225638cf4SSascha Wildner * the necessary scatter DMA.
126325638cf4SSascha Wildner */
126425638cf4SSascha Wildner safestats.st_iovnotuniform++;
126525638cf4SSascha Wildner err = EINVAL;
126625638cf4SSascha Wildner goto errout;
126725638cf4SSascha Wildner }
126825638cf4SSascha Wildner } else
126925638cf4SSascha Wildner re->re_dst = re->re_src;
127025638cf4SSascha Wildner } else if (crp->crp_flags & CRYPTO_F_IMBUF) {
127125638cf4SSascha Wildner if (nicealign && uniform == 1) {
127225638cf4SSascha Wildner /*
127325638cf4SSascha Wildner * Source layout is suitable for direct
127425638cf4SSascha Wildner * sharing of the DMA map and segment list.
127525638cf4SSascha Wildner */
127625638cf4SSascha Wildner re->re_dst = re->re_src;
127725638cf4SSascha Wildner } else if (nicealign && uniform == 2) {
127825638cf4SSascha Wildner /*
127925638cf4SSascha Wildner * The source is properly aligned but requires a
128025638cf4SSascha Wildner * different particle list to handle DMA of the
128125638cf4SSascha Wildner * result. Create a new map and do the load to
128225638cf4SSascha Wildner * create the segment list. The particle
128325638cf4SSascha Wildner * descriptor setup code below will handle the
128425638cf4SSascha Wildner * rest.
128525638cf4SSascha Wildner */
128625638cf4SSascha Wildner if (bus_dmamap_create(sc->sc_dstdmat,
128725638cf4SSascha Wildner BUS_DMA_NOWAIT, &re->re_dst_map)) {
128825638cf4SSascha Wildner safestats.st_nomap++;
128925638cf4SSascha Wildner err = ENOMEM;
129025638cf4SSascha Wildner goto errout;
129125638cf4SSascha Wildner }
129225638cf4SSascha Wildner if (bus_dmamap_load_mbuf(sc->sc_dstdmat,
129325638cf4SSascha Wildner re->re_dst_map, re->re_dst_m,
129425638cf4SSascha Wildner safe_op_cb, &re->re_dst,
129525638cf4SSascha Wildner BUS_DMA_NOWAIT) != 0) {
129625638cf4SSascha Wildner bus_dmamap_destroy(sc->sc_dstdmat,
129725638cf4SSascha Wildner re->re_dst_map);
129825638cf4SSascha Wildner re->re_dst_map = NULL;
129925638cf4SSascha Wildner safestats.st_noload++;
130025638cf4SSascha Wildner err = ENOMEM;
130125638cf4SSascha Wildner goto errout;
130225638cf4SSascha Wildner }
130325638cf4SSascha Wildner } else { /* !(aligned and/or uniform) */
130425638cf4SSascha Wildner int totlen, len;
130525638cf4SSascha Wildner struct mbuf *m, *top, **mp;
130625638cf4SSascha Wildner
130725638cf4SSascha Wildner /*
130825638cf4SSascha Wildner * DMA constraints require that we allocate a
130925638cf4SSascha Wildner * new mbuf chain for the destination. We
131025638cf4SSascha Wildner * allocate an entire new set of mbufs of
131125638cf4SSascha Wildner * optimal/required size and then tell the
131225638cf4SSascha Wildner * hardware to copy any bits that are not
131325638cf4SSascha Wildner * created as a byproduct of the operation.
131425638cf4SSascha Wildner */
131525638cf4SSascha Wildner if (!nicealign)
131625638cf4SSascha Wildner safestats.st_unaligned++;
131725638cf4SSascha Wildner if (!uniform)
131825638cf4SSascha Wildner safestats.st_notuniform++;
131925638cf4SSascha Wildner totlen = re->re_src_mapsize;
132025638cf4SSascha Wildner if (re->re_src_m->m_flags & M_PKTHDR) {
132125638cf4SSascha Wildner len = MHLEN;
1322b5523eacSSascha Wildner MGETHDR(m, M_NOWAIT, MT_DATA);
132325638cf4SSascha Wildner if (m && !m_dup_pkthdr(m, re->re_src_m,
1324b5523eacSSascha Wildner M_NOWAIT)) {
132525638cf4SSascha Wildner m_free(m);
132625638cf4SSascha Wildner m = NULL;
132725638cf4SSascha Wildner }
132825638cf4SSascha Wildner } else {
132925638cf4SSascha Wildner len = MLEN;
1330b5523eacSSascha Wildner MGET(m, M_NOWAIT, MT_DATA);
133125638cf4SSascha Wildner }
133225638cf4SSascha Wildner if (m == NULL) {
133325638cf4SSascha Wildner safestats.st_nombuf++;
133425638cf4SSascha Wildner err = sc->sc_nqchip ? ERESTART : ENOMEM;
133525638cf4SSascha Wildner goto errout;
133625638cf4SSascha Wildner }
133725638cf4SSascha Wildner if (totlen >= MINCLSIZE) {
1338b5523eacSSascha Wildner MCLGET(m, M_NOWAIT);
133925638cf4SSascha Wildner if ((m->m_flags & M_EXT) == 0) {
134025638cf4SSascha Wildner m_free(m);
134125638cf4SSascha Wildner safestats.st_nomcl++;
134225638cf4SSascha Wildner err = sc->sc_nqchip ?
134325638cf4SSascha Wildner ERESTART : ENOMEM;
134425638cf4SSascha Wildner goto errout;
134525638cf4SSascha Wildner }
134625638cf4SSascha Wildner len = MCLBYTES;
134725638cf4SSascha Wildner }
134825638cf4SSascha Wildner m->m_len = len;
134925638cf4SSascha Wildner top = NULL;
135025638cf4SSascha Wildner mp = ⊤
135125638cf4SSascha Wildner
135225638cf4SSascha Wildner while (totlen > 0) {
135325638cf4SSascha Wildner if (top) {
1354b5523eacSSascha Wildner MGET(m, M_NOWAIT, MT_DATA);
135525638cf4SSascha Wildner if (m == NULL) {
135625638cf4SSascha Wildner m_freem(top);
135725638cf4SSascha Wildner safestats.st_nombuf++;
135825638cf4SSascha Wildner err = sc->sc_nqchip ?
135925638cf4SSascha Wildner ERESTART : ENOMEM;
136025638cf4SSascha Wildner goto errout;
136125638cf4SSascha Wildner }
136225638cf4SSascha Wildner len = MLEN;
136325638cf4SSascha Wildner }
136425638cf4SSascha Wildner if (top && totlen >= MINCLSIZE) {
1365b5523eacSSascha Wildner MCLGET(m, M_NOWAIT);
136625638cf4SSascha Wildner if ((m->m_flags & M_EXT) == 0) {
136725638cf4SSascha Wildner *mp = m;
136825638cf4SSascha Wildner m_freem(top);
136925638cf4SSascha Wildner safestats.st_nomcl++;
137025638cf4SSascha Wildner err = sc->sc_nqchip ?
137125638cf4SSascha Wildner ERESTART : ENOMEM;
137225638cf4SSascha Wildner goto errout;
137325638cf4SSascha Wildner }
137425638cf4SSascha Wildner len = MCLBYTES;
137525638cf4SSascha Wildner }
137625638cf4SSascha Wildner m->m_len = len = min(totlen, len);
137725638cf4SSascha Wildner totlen -= len;
137825638cf4SSascha Wildner *mp = m;
137925638cf4SSascha Wildner mp = &m->m_next;
138025638cf4SSascha Wildner }
138125638cf4SSascha Wildner re->re_dst_m = top;
138225638cf4SSascha Wildner if (bus_dmamap_create(sc->sc_dstdmat,
138325638cf4SSascha Wildner BUS_DMA_NOWAIT, &re->re_dst_map) != 0) {
138425638cf4SSascha Wildner safestats.st_nomap++;
138525638cf4SSascha Wildner err = ENOMEM;
138625638cf4SSascha Wildner goto errout;
138725638cf4SSascha Wildner }
138825638cf4SSascha Wildner if (bus_dmamap_load_mbuf(sc->sc_dstdmat,
138925638cf4SSascha Wildner re->re_dst_map, re->re_dst_m,
139025638cf4SSascha Wildner safe_op_cb, &re->re_dst,
139125638cf4SSascha Wildner BUS_DMA_NOWAIT) != 0) {
139225638cf4SSascha Wildner bus_dmamap_destroy(sc->sc_dstdmat,
139325638cf4SSascha Wildner re->re_dst_map);
139425638cf4SSascha Wildner re->re_dst_map = NULL;
139525638cf4SSascha Wildner safestats.st_noload++;
139625638cf4SSascha Wildner err = ENOMEM;
139725638cf4SSascha Wildner goto errout;
139825638cf4SSascha Wildner }
139925638cf4SSascha Wildner if (re->re_src.mapsize > oplen) {
140025638cf4SSascha Wildner /*
140125638cf4SSascha Wildner * There's data following what the
140225638cf4SSascha Wildner * hardware will copy for us. If this
140325638cf4SSascha Wildner * isn't just the ICV (that's going to
140425638cf4SSascha Wildner * be written on completion), copy it
140525638cf4SSascha Wildner * to the new mbufs
140625638cf4SSascha Wildner */
140725638cf4SSascha Wildner if (!(maccrd &&
140825638cf4SSascha Wildner (re->re_src.mapsize-oplen) == 12 &&
140925638cf4SSascha Wildner maccrd->crd_inject == oplen))
141025638cf4SSascha Wildner safe_mcopy(re->re_src_m,
141125638cf4SSascha Wildner re->re_dst_m,
141225638cf4SSascha Wildner oplen);
141325638cf4SSascha Wildner else
141425638cf4SSascha Wildner safestats.st_noicvcopy++;
141525638cf4SSascha Wildner }
141625638cf4SSascha Wildner }
141725638cf4SSascha Wildner } else {
141825638cf4SSascha Wildner safestats.st_badflags++;
141925638cf4SSascha Wildner err = EINVAL;
142025638cf4SSascha Wildner goto errout;
142125638cf4SSascha Wildner }
142225638cf4SSascha Wildner
142325638cf4SSascha Wildner if (re->re_dst.nsegs > 1) {
142425638cf4SSascha Wildner re->re_desc.d_dst = sc->sc_dpalloc.dma_paddr +
142525638cf4SSascha Wildner ((caddr_t) sc->sc_dpfree - (caddr_t) sc->sc_dpring);
142625638cf4SSascha Wildner for (i = 0; i < re->re_dst_nsegs; i++) {
142725638cf4SSascha Wildner pd = sc->sc_dpfree;
142825638cf4SSascha Wildner KASSERT((pd->pd_flags&3) == 0 ||
142925638cf4SSascha Wildner (pd->pd_flags&3) == SAFE_PD_DONE,
143025638cf4SSascha Wildner ("bogus dest particle descriptor; flags %x",
143125638cf4SSascha Wildner pd->pd_flags));
143225638cf4SSascha Wildner if (++(sc->sc_dpfree) == sc->sc_dpringtop)
143325638cf4SSascha Wildner sc->sc_dpfree = sc->sc_dpring;
143425638cf4SSascha Wildner pd->pd_addr = re->re_dst_segs[i].ds_addr;
143525638cf4SSascha Wildner pd->pd_flags = SAFE_PD_READY;
143625638cf4SSascha Wildner }
143725638cf4SSascha Wildner cmd0 |= SAFE_SA_CMD0_OSCATTER;
143825638cf4SSascha Wildner } else {
143925638cf4SSascha Wildner /*
144025638cf4SSascha Wildner * No need for scatter, reference the operand directly.
144125638cf4SSascha Wildner */
144225638cf4SSascha Wildner re->re_desc.d_dst = re->re_dst_segs[0].ds_addr;
144325638cf4SSascha Wildner }
144425638cf4SSascha Wildner }
144525638cf4SSascha Wildner
144625638cf4SSascha Wildner /*
144725638cf4SSascha Wildner * All done with setup; fillin the SA command words
144825638cf4SSascha Wildner * and the packet engine descriptor. The operation
144925638cf4SSascha Wildner * is now ready for submission to the hardware.
145025638cf4SSascha Wildner */
145125638cf4SSascha Wildner sa->sa_cmd0 = cmd0 | SAFE_SA_CMD0_IPCI | SAFE_SA_CMD0_OPCI;
145225638cf4SSascha Wildner sa->sa_cmd1 = cmd1
145325638cf4SSascha Wildner | (coffset << SAFE_SA_CMD1_OFFSET_S)
145425638cf4SSascha Wildner | SAFE_SA_CMD1_SAREV1 /* Rev 1 SA data structure */
145525638cf4SSascha Wildner | SAFE_SA_CMD1_SRPCI
145625638cf4SSascha Wildner ;
145725638cf4SSascha Wildner /*
145825638cf4SSascha Wildner * NB: the order of writes is important here. In case the
145925638cf4SSascha Wildner * chip is scanning the ring because of an outstanding request
146025638cf4SSascha Wildner * it might nab this one too. In that case we need to make
146125638cf4SSascha Wildner * sure the setup is complete before we write the length
146225638cf4SSascha Wildner * field of the descriptor as it signals the descriptor is
146325638cf4SSascha Wildner * ready for processing.
146425638cf4SSascha Wildner */
146525638cf4SSascha Wildner re->re_desc.d_csr = SAFE_PE_CSR_READY | SAFE_PE_CSR_SAPCI;
146625638cf4SSascha Wildner if (maccrd)
146725638cf4SSascha Wildner re->re_desc.d_csr |= SAFE_PE_CSR_LOADSA | SAFE_PE_CSR_HASHFINAL;
146825638cf4SSascha Wildner re->re_desc.d_len = oplen
146925638cf4SSascha Wildner | SAFE_PE_LEN_READY
147025638cf4SSascha Wildner | (bypass << SAFE_PE_LEN_BYPASS_S)
147125638cf4SSascha Wildner ;
147225638cf4SSascha Wildner
147325638cf4SSascha Wildner safestats.st_ipackets++;
147425638cf4SSascha Wildner safestats.st_ibytes += oplen;
147525638cf4SSascha Wildner
147625638cf4SSascha Wildner if (++(sc->sc_front) == sc->sc_ringtop)
147725638cf4SSascha Wildner sc->sc_front = sc->sc_ring;
147825638cf4SSascha Wildner
147925638cf4SSascha Wildner /* XXX honor batching */
148025638cf4SSascha Wildner safe_feed(sc, re);
148125638cf4SSascha Wildner lockmgr(&sc->sc_ringlock, LK_RELEASE);
148225638cf4SSascha Wildner return (0);
148325638cf4SSascha Wildner
148425638cf4SSascha Wildner errout:
148525638cf4SSascha Wildner if ((re->re_dst_m != NULL) && (re->re_src_m != re->re_dst_m))
148625638cf4SSascha Wildner m_freem(re->re_dst_m);
148725638cf4SSascha Wildner
148825638cf4SSascha Wildner if (re->re_dst_map != NULL && re->re_dst_map != re->re_src_map) {
148925638cf4SSascha Wildner bus_dmamap_unload(sc->sc_dstdmat, re->re_dst_map);
149025638cf4SSascha Wildner bus_dmamap_destroy(sc->sc_dstdmat, re->re_dst_map);
149125638cf4SSascha Wildner }
149225638cf4SSascha Wildner if (re->re_src_map != NULL) {
149325638cf4SSascha Wildner bus_dmamap_unload(sc->sc_srcdmat, re->re_src_map);
149425638cf4SSascha Wildner bus_dmamap_destroy(sc->sc_srcdmat, re->re_src_map);
149525638cf4SSascha Wildner }
149625638cf4SSascha Wildner lockmgr(&sc->sc_ringlock, LK_RELEASE);
149725638cf4SSascha Wildner if (err != ERESTART) {
149825638cf4SSascha Wildner crp->crp_etype = err;
149925638cf4SSascha Wildner crypto_done(crp);
150025638cf4SSascha Wildner } else {
150125638cf4SSascha Wildner sc->sc_needwakeup |= CRYPTO_SYMQ;
150225638cf4SSascha Wildner }
150325638cf4SSascha Wildner return (err);
150425638cf4SSascha Wildner }
150525638cf4SSascha Wildner
150625638cf4SSascha Wildner static void
safe_callback(struct safe_softc * sc,struct safe_ringentry * re)150725638cf4SSascha Wildner safe_callback(struct safe_softc *sc, struct safe_ringentry *re)
150825638cf4SSascha Wildner {
150925638cf4SSascha Wildner struct cryptop *crp = (struct cryptop *)re->re_crp;
151025638cf4SSascha Wildner struct cryptodesc *crd;
151125638cf4SSascha Wildner
151225638cf4SSascha Wildner safestats.st_opackets++;
151325638cf4SSascha Wildner safestats.st_obytes += re->re_dst.mapsize;
151425638cf4SSascha Wildner
151525638cf4SSascha Wildner safe_dma_sync(&sc->sc_ringalloc,
151625638cf4SSascha Wildner BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
151725638cf4SSascha Wildner if (re->re_desc.d_csr & SAFE_PE_CSR_STATUS) {
151825638cf4SSascha Wildner device_printf(sc->sc_dev, "csr 0x%x cmd0 0x%x cmd1 0x%x\n",
151925638cf4SSascha Wildner re->re_desc.d_csr,
152025638cf4SSascha Wildner re->re_sa.sa_cmd0, re->re_sa.sa_cmd1);
152125638cf4SSascha Wildner safestats.st_peoperr++;
152225638cf4SSascha Wildner crp->crp_etype = EIO; /* something more meaningful? */
152325638cf4SSascha Wildner }
152425638cf4SSascha Wildner if (re->re_dst_map != NULL && re->re_dst_map != re->re_src_map) {
152525638cf4SSascha Wildner bus_dmamap_sync(sc->sc_dstdmat, re->re_dst_map,
152625638cf4SSascha Wildner BUS_DMASYNC_POSTREAD);
152725638cf4SSascha Wildner bus_dmamap_unload(sc->sc_dstdmat, re->re_dst_map);
152825638cf4SSascha Wildner bus_dmamap_destroy(sc->sc_dstdmat, re->re_dst_map);
152925638cf4SSascha Wildner }
153025638cf4SSascha Wildner bus_dmamap_sync(sc->sc_srcdmat, re->re_src_map, BUS_DMASYNC_POSTWRITE);
153125638cf4SSascha Wildner bus_dmamap_unload(sc->sc_srcdmat, re->re_src_map);
153225638cf4SSascha Wildner bus_dmamap_destroy(sc->sc_srcdmat, re->re_src_map);
153325638cf4SSascha Wildner
153425638cf4SSascha Wildner /*
153525638cf4SSascha Wildner * If result was written to a differet mbuf chain, swap
153625638cf4SSascha Wildner * it in as the return value and reclaim the original.
153725638cf4SSascha Wildner */
153825638cf4SSascha Wildner if ((crp->crp_flags & CRYPTO_F_IMBUF) && re->re_src_m != re->re_dst_m) {
153925638cf4SSascha Wildner m_freem(re->re_src_m);
154025638cf4SSascha Wildner crp->crp_buf = (caddr_t)re->re_dst_m;
154125638cf4SSascha Wildner }
154225638cf4SSascha Wildner
154325638cf4SSascha Wildner if (re->re_flags & SAFE_QFLAGS_COPYOUTIV) {
154425638cf4SSascha Wildner /* copy out IV for future use */
154525638cf4SSascha Wildner for (crd = crp->crp_desc; crd; crd = crd->crd_next) {
154625638cf4SSascha Wildner int ivsize;
154725638cf4SSascha Wildner
154825638cf4SSascha Wildner if (crd->crd_alg == CRYPTO_DES_CBC ||
154925638cf4SSascha Wildner crd->crd_alg == CRYPTO_3DES_CBC) {
155025638cf4SSascha Wildner ivsize = 2*sizeof(u_int32_t);
155125638cf4SSascha Wildner } else if (crd->crd_alg == CRYPTO_AES_CBC) {
155225638cf4SSascha Wildner ivsize = 4*sizeof(u_int32_t);
155325638cf4SSascha Wildner } else
155425638cf4SSascha Wildner continue;
155525638cf4SSascha Wildner crypto_copydata(crp->crp_flags, crp->crp_buf,
155625638cf4SSascha Wildner crd->crd_skip + crd->crd_len - ivsize, ivsize,
155725638cf4SSascha Wildner (caddr_t)sc->sc_sessions[re->re_sesn].ses_iv);
155825638cf4SSascha Wildner break;
155925638cf4SSascha Wildner }
156025638cf4SSascha Wildner }
156125638cf4SSascha Wildner
156225638cf4SSascha Wildner if (re->re_flags & SAFE_QFLAGS_COPYOUTICV) {
156325638cf4SSascha Wildner /* copy out ICV result */
156425638cf4SSascha Wildner for (crd = crp->crp_desc; crd; crd = crd->crd_next) {
156525638cf4SSascha Wildner if (!(crd->crd_alg == CRYPTO_MD5_HMAC ||
156625638cf4SSascha Wildner crd->crd_alg == CRYPTO_SHA1_HMAC ||
156725638cf4SSascha Wildner crd->crd_alg == CRYPTO_NULL_HMAC))
156825638cf4SSascha Wildner continue;
156925638cf4SSascha Wildner if (crd->crd_alg == CRYPTO_SHA1_HMAC) {
157025638cf4SSascha Wildner /*
157125638cf4SSascha Wildner * SHA-1 ICV's are byte-swapped; fix 'em up
157225638cf4SSascha Wildner * before copy them to their destination.
157325638cf4SSascha Wildner */
157425638cf4SSascha Wildner re->re_sastate.sa_saved_indigest[0] =
157525638cf4SSascha Wildner bswap32(re->re_sastate.sa_saved_indigest[0]);
157625638cf4SSascha Wildner re->re_sastate.sa_saved_indigest[1] =
157725638cf4SSascha Wildner bswap32(re->re_sastate.sa_saved_indigest[1]);
157825638cf4SSascha Wildner re->re_sastate.sa_saved_indigest[2] =
157925638cf4SSascha Wildner bswap32(re->re_sastate.sa_saved_indigest[2]);
158025638cf4SSascha Wildner }
158125638cf4SSascha Wildner crypto_copyback(crp->crp_flags, crp->crp_buf,
158225638cf4SSascha Wildner crd->crd_inject,
158325638cf4SSascha Wildner sc->sc_sessions[re->re_sesn].ses_mlen,
158425638cf4SSascha Wildner (caddr_t)re->re_sastate.sa_saved_indigest);
158525638cf4SSascha Wildner break;
158625638cf4SSascha Wildner }
158725638cf4SSascha Wildner }
158825638cf4SSascha Wildner crypto_done(crp);
158925638cf4SSascha Wildner }
159025638cf4SSascha Wildner
159125638cf4SSascha Wildner /*
159225638cf4SSascha Wildner * Copy all data past offset from srcm to dstm.
159325638cf4SSascha Wildner */
159425638cf4SSascha Wildner static void
safe_mcopy(struct mbuf * srcm,struct mbuf * dstm,u_int offset)159525638cf4SSascha Wildner safe_mcopy(struct mbuf *srcm, struct mbuf *dstm, u_int offset)
159625638cf4SSascha Wildner {
159725638cf4SSascha Wildner u_int j, dlen, slen;
159825638cf4SSascha Wildner caddr_t dptr, sptr;
159925638cf4SSascha Wildner
160025638cf4SSascha Wildner /*
160125638cf4SSascha Wildner * Advance src and dst to offset.
160225638cf4SSascha Wildner */
160325638cf4SSascha Wildner j = offset;
160425638cf4SSascha Wildner while (j >= 0) {
160525638cf4SSascha Wildner if (srcm->m_len > j)
160625638cf4SSascha Wildner break;
160725638cf4SSascha Wildner j -= srcm->m_len;
160825638cf4SSascha Wildner srcm = srcm->m_next;
160925638cf4SSascha Wildner if (srcm == NULL)
161025638cf4SSascha Wildner return;
161125638cf4SSascha Wildner }
161225638cf4SSascha Wildner sptr = mtod(srcm, caddr_t) + j;
161325638cf4SSascha Wildner slen = srcm->m_len - j;
161425638cf4SSascha Wildner
161525638cf4SSascha Wildner j = offset;
161625638cf4SSascha Wildner while (j >= 0) {
161725638cf4SSascha Wildner if (dstm->m_len > j)
161825638cf4SSascha Wildner break;
161925638cf4SSascha Wildner j -= dstm->m_len;
162025638cf4SSascha Wildner dstm = dstm->m_next;
162125638cf4SSascha Wildner if (dstm == NULL)
162225638cf4SSascha Wildner return;
162325638cf4SSascha Wildner }
162425638cf4SSascha Wildner dptr = mtod(dstm, caddr_t) + j;
162525638cf4SSascha Wildner dlen = dstm->m_len - j;
162625638cf4SSascha Wildner
162725638cf4SSascha Wildner /*
162825638cf4SSascha Wildner * Copy everything that remains.
162925638cf4SSascha Wildner */
163025638cf4SSascha Wildner for (;;) {
163125638cf4SSascha Wildner j = min(slen, dlen);
163225638cf4SSascha Wildner bcopy(sptr, dptr, j);
163325638cf4SSascha Wildner if (slen == j) {
163425638cf4SSascha Wildner srcm = srcm->m_next;
163525638cf4SSascha Wildner if (srcm == NULL)
163625638cf4SSascha Wildner return;
163725638cf4SSascha Wildner sptr = srcm->m_data;
163825638cf4SSascha Wildner slen = srcm->m_len;
163925638cf4SSascha Wildner } else
164025638cf4SSascha Wildner sptr += j, slen -= j;
164125638cf4SSascha Wildner if (dlen == j) {
164225638cf4SSascha Wildner dstm = dstm->m_next;
164325638cf4SSascha Wildner if (dstm == NULL)
164425638cf4SSascha Wildner return;
164525638cf4SSascha Wildner dptr = dstm->m_data;
164625638cf4SSascha Wildner dlen = dstm->m_len;
164725638cf4SSascha Wildner } else
164825638cf4SSascha Wildner dptr += j, dlen -= j;
164925638cf4SSascha Wildner }
165025638cf4SSascha Wildner }
165125638cf4SSascha Wildner
165225638cf4SSascha Wildner #ifndef SAFE_NO_RNG
165325638cf4SSascha Wildner #define SAFE_RNG_MAXWAIT 1000
165425638cf4SSascha Wildner
165525638cf4SSascha Wildner static void
safe_rng_init(struct safe_softc * sc)165625638cf4SSascha Wildner safe_rng_init(struct safe_softc *sc)
165725638cf4SSascha Wildner {
165825638cf4SSascha Wildner u_int32_t w, v;
165925638cf4SSascha Wildner int i;
166025638cf4SSascha Wildner
166125638cf4SSascha Wildner WRITE_REG(sc, SAFE_RNG_CTRL, 0);
166225638cf4SSascha Wildner /* use default value according to the manual */
166325638cf4SSascha Wildner WRITE_REG(sc, SAFE_RNG_CNFG, 0x834); /* magic from SafeNet */
166425638cf4SSascha Wildner WRITE_REG(sc, SAFE_RNG_ALM_CNT, 0);
166525638cf4SSascha Wildner
166625638cf4SSascha Wildner /*
166725638cf4SSascha Wildner * There is a bug in rev 1.0 of the 1140 that when the RNG
166825638cf4SSascha Wildner * is brought out of reset the ready status flag does not
166925638cf4SSascha Wildner * work until the RNG has finished its internal initialization.
167025638cf4SSascha Wildner *
167125638cf4SSascha Wildner * So in order to determine the device is through its
167225638cf4SSascha Wildner * initialization we must read the data register, using the
167325638cf4SSascha Wildner * status reg in the read in case it is initialized. Then read
167425638cf4SSascha Wildner * the data register until it changes from the first read.
167525638cf4SSascha Wildner * Once it changes read the data register until it changes
167625638cf4SSascha Wildner * again. At this time the RNG is considered initialized.
167725638cf4SSascha Wildner * This could take between 750ms - 1000ms in time.
167825638cf4SSascha Wildner */
167925638cf4SSascha Wildner i = 0;
168025638cf4SSascha Wildner w = READ_REG(sc, SAFE_RNG_OUT);
168125638cf4SSascha Wildner do {
168225638cf4SSascha Wildner v = READ_REG(sc, SAFE_RNG_OUT);
168325638cf4SSascha Wildner if (v != w) {
168425638cf4SSascha Wildner w = v;
168525638cf4SSascha Wildner break;
168625638cf4SSascha Wildner }
168725638cf4SSascha Wildner DELAY(10);
168825638cf4SSascha Wildner } while (++i < SAFE_RNG_MAXWAIT);
168925638cf4SSascha Wildner
169025638cf4SSascha Wildner /* Wait Until data changes again */
169125638cf4SSascha Wildner i = 0;
169225638cf4SSascha Wildner do {
169325638cf4SSascha Wildner v = READ_REG(sc, SAFE_RNG_OUT);
169425638cf4SSascha Wildner if (v != w)
169525638cf4SSascha Wildner break;
169625638cf4SSascha Wildner DELAY(10);
169725638cf4SSascha Wildner } while (++i < SAFE_RNG_MAXWAIT);
169825638cf4SSascha Wildner }
169925638cf4SSascha Wildner
170025638cf4SSascha Wildner static __inline void
safe_rng_disable_short_cycle(struct safe_softc * sc)170125638cf4SSascha Wildner safe_rng_disable_short_cycle(struct safe_softc *sc)
170225638cf4SSascha Wildner {
170325638cf4SSascha Wildner WRITE_REG(sc, SAFE_RNG_CTRL,
170425638cf4SSascha Wildner READ_REG(sc, SAFE_RNG_CTRL) &~ SAFE_RNG_CTRL_SHORTEN);
170525638cf4SSascha Wildner }
170625638cf4SSascha Wildner
170725638cf4SSascha Wildner static __inline void
safe_rng_enable_short_cycle(struct safe_softc * sc)170825638cf4SSascha Wildner safe_rng_enable_short_cycle(struct safe_softc *sc)
170925638cf4SSascha Wildner {
171025638cf4SSascha Wildner WRITE_REG(sc, SAFE_RNG_CTRL,
171125638cf4SSascha Wildner READ_REG(sc, SAFE_RNG_CTRL) | SAFE_RNG_CTRL_SHORTEN);
171225638cf4SSascha Wildner }
171325638cf4SSascha Wildner
171425638cf4SSascha Wildner static __inline u_int32_t
safe_rng_read(struct safe_softc * sc)171525638cf4SSascha Wildner safe_rng_read(struct safe_softc *sc)
171625638cf4SSascha Wildner {
171725638cf4SSascha Wildner int i;
171825638cf4SSascha Wildner
171925638cf4SSascha Wildner i = 0;
172025638cf4SSascha Wildner while (READ_REG(sc, SAFE_RNG_STAT) != 0 && ++i < SAFE_RNG_MAXWAIT)
172125638cf4SSascha Wildner ;
172225638cf4SSascha Wildner return READ_REG(sc, SAFE_RNG_OUT);
172325638cf4SSascha Wildner }
172425638cf4SSascha Wildner
172525638cf4SSascha Wildner static void
safe_rng(void * arg)172625638cf4SSascha Wildner safe_rng(void *arg)
172725638cf4SSascha Wildner {
172825638cf4SSascha Wildner struct safe_softc *sc = arg;
172925638cf4SSascha Wildner u_int32_t buf[SAFE_RNG_MAXBUFSIZ]; /* NB: maybe move to softc */
173025638cf4SSascha Wildner u_int maxwords;
173125638cf4SSascha Wildner int i;
173225638cf4SSascha Wildner
173325638cf4SSascha Wildner safestats.st_rng++;
173425638cf4SSascha Wildner /*
173525638cf4SSascha Wildner * Fetch the next block of data.
173625638cf4SSascha Wildner */
173725638cf4SSascha Wildner maxwords = safe_rngbufsize;
173825638cf4SSascha Wildner if (maxwords > SAFE_RNG_MAXBUFSIZ)
173925638cf4SSascha Wildner maxwords = SAFE_RNG_MAXBUFSIZ;
174025638cf4SSascha Wildner retry:
174125638cf4SSascha Wildner for (i = 0; i < maxwords; i++)
174225638cf4SSascha Wildner buf[i] = safe_rng_read(sc);
174325638cf4SSascha Wildner /*
174425638cf4SSascha Wildner * Check the comparator alarm count and reset the h/w if
174525638cf4SSascha Wildner * it exceeds our threshold. This guards against the
174625638cf4SSascha Wildner * hardware oscillators resonating with external signals.
174725638cf4SSascha Wildner */
174825638cf4SSascha Wildner if (READ_REG(sc, SAFE_RNG_ALM_CNT) > safe_rngmaxalarm) {
174925638cf4SSascha Wildner u_int32_t freq_inc, w;
175025638cf4SSascha Wildner
175125638cf4SSascha Wildner DPRINTF(("%s: alarm count %u exceeds threshold %u\n", __func__,
175225638cf4SSascha Wildner READ_REG(sc, SAFE_RNG_ALM_CNT), safe_rngmaxalarm));
175325638cf4SSascha Wildner safestats.st_rngalarm++;
175425638cf4SSascha Wildner safe_rng_enable_short_cycle(sc);
175525638cf4SSascha Wildner freq_inc = 18;
175625638cf4SSascha Wildner for (i = 0; i < 64; i++) {
175725638cf4SSascha Wildner w = READ_REG(sc, SAFE_RNG_CNFG);
175825638cf4SSascha Wildner freq_inc = ((w + freq_inc) & 0x3fL);
175925638cf4SSascha Wildner w = ((w & ~0x3fL) | freq_inc);
176025638cf4SSascha Wildner WRITE_REG(sc, SAFE_RNG_CNFG, w);
176125638cf4SSascha Wildner
176225638cf4SSascha Wildner WRITE_REG(sc, SAFE_RNG_ALM_CNT, 0);
176325638cf4SSascha Wildner
176425638cf4SSascha Wildner (void) safe_rng_read(sc);
176525638cf4SSascha Wildner DELAY(25);
176625638cf4SSascha Wildner
176725638cf4SSascha Wildner if (READ_REG(sc, SAFE_RNG_ALM_CNT) == 0) {
176825638cf4SSascha Wildner safe_rng_disable_short_cycle(sc);
176925638cf4SSascha Wildner goto retry;
177025638cf4SSascha Wildner }
177125638cf4SSascha Wildner freq_inc = 1;
177225638cf4SSascha Wildner }
177325638cf4SSascha Wildner safe_rng_disable_short_cycle(sc);
177425638cf4SSascha Wildner } else
177525638cf4SSascha Wildner WRITE_REG(sc, SAFE_RNG_ALM_CNT, 0);
177625638cf4SSascha Wildner
177725638cf4SSascha Wildner (*sc->sc_harvest)(sc->sc_rndtest, buf, maxwords*sizeof (u_int32_t));
177825638cf4SSascha Wildner callout_reset(&sc->sc_rngto,
177925638cf4SSascha Wildner hz * (safe_rnginterval ? safe_rnginterval : 1), safe_rng, sc);
178025638cf4SSascha Wildner }
178125638cf4SSascha Wildner #endif /* SAFE_NO_RNG */
178225638cf4SSascha Wildner
178325638cf4SSascha Wildner static void
safe_dmamap_cb(void * arg,bus_dma_segment_t * segs,int nseg,int error)178425638cf4SSascha Wildner safe_dmamap_cb(void *arg, bus_dma_segment_t *segs, int nseg, int error)
178525638cf4SSascha Wildner {
178625638cf4SSascha Wildner bus_addr_t *paddr = (bus_addr_t*) arg;
178725638cf4SSascha Wildner *paddr = segs->ds_addr;
178825638cf4SSascha Wildner }
178925638cf4SSascha Wildner
179025638cf4SSascha Wildner static int
safe_dma_malloc(struct safe_softc * sc,bus_size_t size,struct safe_dma_alloc * dma,int mapflags)179125638cf4SSascha Wildner safe_dma_malloc(
179225638cf4SSascha Wildner struct safe_softc *sc,
179325638cf4SSascha Wildner bus_size_t size,
179425638cf4SSascha Wildner struct safe_dma_alloc *dma,
179525638cf4SSascha Wildner int mapflags
179625638cf4SSascha Wildner )
179725638cf4SSascha Wildner {
179825638cf4SSascha Wildner int r;
179925638cf4SSascha Wildner
180025638cf4SSascha Wildner r = bus_dma_tag_create(NULL, /* parent */
180125638cf4SSascha Wildner sizeof(u_int32_t), 0, /* alignment, bounds */
180225638cf4SSascha Wildner BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
180325638cf4SSascha Wildner BUS_SPACE_MAXADDR, /* highaddr */
180425638cf4SSascha Wildner size, /* maxsize */
180525638cf4SSascha Wildner 1, /* nsegments */
180625638cf4SSascha Wildner size, /* maxsegsize */
180725638cf4SSascha Wildner BUS_DMA_ALLOCNOW, /* flags */
180825638cf4SSascha Wildner &dma->dma_tag);
180925638cf4SSascha Wildner if (r != 0) {
181025638cf4SSascha Wildner device_printf(sc->sc_dev, "safe_dma_malloc: "
181125638cf4SSascha Wildner "bus_dma_tag_create failed; error %u\n", r);
181225638cf4SSascha Wildner goto fail_0;
181325638cf4SSascha Wildner }
181425638cf4SSascha Wildner
181525638cf4SSascha Wildner r = bus_dmamap_create(dma->dma_tag, BUS_DMA_NOWAIT, &dma->dma_map);
181625638cf4SSascha Wildner if (r != 0) {
181725638cf4SSascha Wildner device_printf(sc->sc_dev, "safe_dma_malloc: "
181825638cf4SSascha Wildner "bus_dmamap_create failed; error %u\n", r);
181925638cf4SSascha Wildner goto fail_1;
182025638cf4SSascha Wildner }
182125638cf4SSascha Wildner
182225638cf4SSascha Wildner r = bus_dmamem_alloc(dma->dma_tag, (void**) &dma->dma_vaddr,
182325638cf4SSascha Wildner BUS_DMA_NOWAIT, &dma->dma_map);
182425638cf4SSascha Wildner if (r != 0) {
182525638cf4SSascha Wildner device_printf(sc->sc_dev, "safe_dma_malloc: "
182625638cf4SSascha Wildner "bus_dmammem_alloc failed; size %zu, error %u\n",
182725638cf4SSascha Wildner size, r);
182825638cf4SSascha Wildner goto fail_2;
182925638cf4SSascha Wildner }
183025638cf4SSascha Wildner
183125638cf4SSascha Wildner r = bus_dmamap_load(dma->dma_tag, dma->dma_map, dma->dma_vaddr,
183225638cf4SSascha Wildner size,
183325638cf4SSascha Wildner safe_dmamap_cb,
183425638cf4SSascha Wildner &dma->dma_paddr,
183525638cf4SSascha Wildner mapflags | BUS_DMA_NOWAIT);
183625638cf4SSascha Wildner if (r != 0) {
183725638cf4SSascha Wildner device_printf(sc->sc_dev, "safe_dma_malloc: "
183825638cf4SSascha Wildner "bus_dmamap_load failed; error %u\n", r);
183925638cf4SSascha Wildner goto fail_3;
184025638cf4SSascha Wildner }
184125638cf4SSascha Wildner
184225638cf4SSascha Wildner dma->dma_size = size;
184325638cf4SSascha Wildner return (0);
184425638cf4SSascha Wildner
184525638cf4SSascha Wildner fail_3:
184625638cf4SSascha Wildner bus_dmamap_unload(dma->dma_tag, dma->dma_map);
184725638cf4SSascha Wildner fail_2:
184825638cf4SSascha Wildner bus_dmamem_free(dma->dma_tag, dma->dma_vaddr, dma->dma_map);
184925638cf4SSascha Wildner fail_1:
185025638cf4SSascha Wildner bus_dmamap_destroy(dma->dma_tag, dma->dma_map);
185125638cf4SSascha Wildner bus_dma_tag_destroy(dma->dma_tag);
185225638cf4SSascha Wildner fail_0:
185325638cf4SSascha Wildner dma->dma_map = NULL;
185425638cf4SSascha Wildner dma->dma_tag = NULL;
185525638cf4SSascha Wildner return (r);
185625638cf4SSascha Wildner }
185725638cf4SSascha Wildner
185825638cf4SSascha Wildner static void
safe_dma_free(struct safe_softc * sc,struct safe_dma_alloc * dma)185925638cf4SSascha Wildner safe_dma_free(struct safe_softc *sc, struct safe_dma_alloc *dma)
186025638cf4SSascha Wildner {
186125638cf4SSascha Wildner bus_dmamap_unload(dma->dma_tag, dma->dma_map);
186225638cf4SSascha Wildner bus_dmamem_free(dma->dma_tag, dma->dma_vaddr, dma->dma_map);
186325638cf4SSascha Wildner bus_dmamap_destroy(dma->dma_tag, dma->dma_map);
186425638cf4SSascha Wildner bus_dma_tag_destroy(dma->dma_tag);
186525638cf4SSascha Wildner }
186625638cf4SSascha Wildner
186725638cf4SSascha Wildner /*
186825638cf4SSascha Wildner * Resets the board. Values in the regesters are left as is
186925638cf4SSascha Wildner * from the reset (i.e. initial values are assigned elsewhere).
187025638cf4SSascha Wildner */
187125638cf4SSascha Wildner static void
safe_reset_board(struct safe_softc * sc)187225638cf4SSascha Wildner safe_reset_board(struct safe_softc *sc)
187325638cf4SSascha Wildner {
187425638cf4SSascha Wildner u_int32_t v;
187525638cf4SSascha Wildner /*
187625638cf4SSascha Wildner * Reset the device. The manual says no delay
187725638cf4SSascha Wildner * is needed between marking and clearing reset.
187825638cf4SSascha Wildner */
187925638cf4SSascha Wildner v = READ_REG(sc, SAFE_PE_DMACFG) &~
188025638cf4SSascha Wildner (SAFE_PE_DMACFG_PERESET | SAFE_PE_DMACFG_PDRRESET |
188125638cf4SSascha Wildner SAFE_PE_DMACFG_SGRESET);
188225638cf4SSascha Wildner WRITE_REG(sc, SAFE_PE_DMACFG, v
188325638cf4SSascha Wildner | SAFE_PE_DMACFG_PERESET
188425638cf4SSascha Wildner | SAFE_PE_DMACFG_PDRRESET
188525638cf4SSascha Wildner | SAFE_PE_DMACFG_SGRESET);
188625638cf4SSascha Wildner WRITE_REG(sc, SAFE_PE_DMACFG, v);
188725638cf4SSascha Wildner }
188825638cf4SSascha Wildner
188925638cf4SSascha Wildner /*
189025638cf4SSascha Wildner * Initialize registers we need to touch only once.
189125638cf4SSascha Wildner */
189225638cf4SSascha Wildner static void
safe_init_board(struct safe_softc * sc)189325638cf4SSascha Wildner safe_init_board(struct safe_softc *sc)
189425638cf4SSascha Wildner {
189525638cf4SSascha Wildner u_int32_t v, dwords;
189625638cf4SSascha Wildner
189725638cf4SSascha Wildner v = READ_REG(sc, SAFE_PE_DMACFG);
189825638cf4SSascha Wildner v &=~ SAFE_PE_DMACFG_PEMODE;
189925638cf4SSascha Wildner v |= SAFE_PE_DMACFG_FSENA /* failsafe enable */
190025638cf4SSascha Wildner | SAFE_PE_DMACFG_GPRPCI /* gather ring on PCI */
190125638cf4SSascha Wildner | SAFE_PE_DMACFG_SPRPCI /* scatter ring on PCI */
190225638cf4SSascha Wildner | SAFE_PE_DMACFG_ESDESC /* endian-swap descriptors */
190325638cf4SSascha Wildner | SAFE_PE_DMACFG_ESSA /* endian-swap SA's */
190425638cf4SSascha Wildner | SAFE_PE_DMACFG_ESPDESC /* endian-swap part. desc's */
190525638cf4SSascha Wildner ;
190625638cf4SSascha Wildner WRITE_REG(sc, SAFE_PE_DMACFG, v);
190725638cf4SSascha Wildner #if 0
190825638cf4SSascha Wildner /* XXX select byte swap based on host byte order */
190925638cf4SSascha Wildner WRITE_REG(sc, SAFE_ENDIAN, 0x1b);
191025638cf4SSascha Wildner #endif
191125638cf4SSascha Wildner if (sc->sc_chiprev == SAFE_REV(1,0)) {
191225638cf4SSascha Wildner /*
191325638cf4SSascha Wildner * Avoid large PCI DMA transfers. Rev 1.0 has a bug where
191425638cf4SSascha Wildner * "target mode transfers" done while the chip is DMA'ing
191525638cf4SSascha Wildner * >1020 bytes cause the hardware to lockup. To avoid this
191625638cf4SSascha Wildner * we reduce the max PCI transfer size and use small source
191725638cf4SSascha Wildner * particle descriptors (<= 256 bytes).
191825638cf4SSascha Wildner */
191925638cf4SSascha Wildner WRITE_REG(sc, SAFE_DMA_CFG, 256);
192025638cf4SSascha Wildner device_printf(sc->sc_dev,
192125638cf4SSascha Wildner "Reduce max DMA size to %u words for rev %u.%u WAR\n",
192225638cf4SSascha Wildner (READ_REG(sc, SAFE_DMA_CFG)>>2) & 0xff,
192325638cf4SSascha Wildner SAFE_REV_MAJ(sc->sc_chiprev),
192425638cf4SSascha Wildner SAFE_REV_MIN(sc->sc_chiprev));
192525638cf4SSascha Wildner }
192625638cf4SSascha Wildner
192725638cf4SSascha Wildner /* NB: operands+results are overlaid */
192825638cf4SSascha Wildner WRITE_REG(sc, SAFE_PE_PDRBASE, sc->sc_ringalloc.dma_paddr);
192925638cf4SSascha Wildner WRITE_REG(sc, SAFE_PE_RDRBASE, sc->sc_ringalloc.dma_paddr);
193025638cf4SSascha Wildner /*
193125638cf4SSascha Wildner * Configure ring entry size and number of items in the ring.
193225638cf4SSascha Wildner */
193325638cf4SSascha Wildner KASSERT((sizeof(struct safe_ringentry) % sizeof(u_int32_t)) == 0,
193425638cf4SSascha Wildner ("PE ring entry not 32-bit aligned!"));
193525638cf4SSascha Wildner dwords = sizeof(struct safe_ringentry) / sizeof(u_int32_t);
193625638cf4SSascha Wildner WRITE_REG(sc, SAFE_PE_RINGCFG,
193725638cf4SSascha Wildner (dwords << SAFE_PE_RINGCFG_OFFSET_S) | SAFE_MAX_NQUEUE);
193825638cf4SSascha Wildner WRITE_REG(sc, SAFE_PE_RINGPOLL, 0); /* disable polling */
193925638cf4SSascha Wildner
194025638cf4SSascha Wildner WRITE_REG(sc, SAFE_PE_GRNGBASE, sc->sc_spalloc.dma_paddr);
194125638cf4SSascha Wildner WRITE_REG(sc, SAFE_PE_SRNGBASE, sc->sc_dpalloc.dma_paddr);
194225638cf4SSascha Wildner WRITE_REG(sc, SAFE_PE_PARTSIZE,
194325638cf4SSascha Wildner (SAFE_TOTAL_DPART<<16) | SAFE_TOTAL_SPART);
194425638cf4SSascha Wildner /*
194525638cf4SSascha Wildner * NB: destination particles are fixed size. We use
194625638cf4SSascha Wildner * an mbuf cluster and require all results go to
194725638cf4SSascha Wildner * clusters or smaller.
194825638cf4SSascha Wildner */
194925638cf4SSascha Wildner WRITE_REG(sc, SAFE_PE_PARTCFG, SAFE_MAX_DSIZE);
195025638cf4SSascha Wildner
195125638cf4SSascha Wildner /* it's now safe to enable PE mode, do it */
195225638cf4SSascha Wildner WRITE_REG(sc, SAFE_PE_DMACFG, v | SAFE_PE_DMACFG_PEMODE);
195325638cf4SSascha Wildner
195425638cf4SSascha Wildner /*
195525638cf4SSascha Wildner * Configure hardware to use level-triggered interrupts and
195625638cf4SSascha Wildner * to interrupt after each descriptor is processed.
195725638cf4SSascha Wildner */
195825638cf4SSascha Wildner WRITE_REG(sc, SAFE_HI_CFG, SAFE_HI_CFG_LEVEL);
195925638cf4SSascha Wildner WRITE_REG(sc, SAFE_HI_DESC_CNT, 1);
196025638cf4SSascha Wildner WRITE_REG(sc, SAFE_HI_MASK, SAFE_INT_PE_DDONE | SAFE_INT_PE_ERROR);
196125638cf4SSascha Wildner }
196225638cf4SSascha Wildner
196325638cf4SSascha Wildner /*
196425638cf4SSascha Wildner * Init PCI registers
196525638cf4SSascha Wildner */
196625638cf4SSascha Wildner static void
safe_init_pciregs(device_t dev)196725638cf4SSascha Wildner safe_init_pciregs(device_t dev)
196825638cf4SSascha Wildner {
196925638cf4SSascha Wildner }
197025638cf4SSascha Wildner
197125638cf4SSascha Wildner /*
197225638cf4SSascha Wildner * Clean up after a chip crash.
197325638cf4SSascha Wildner * It is assumed that the caller in splimp()
197425638cf4SSascha Wildner */
197525638cf4SSascha Wildner static void
safe_cleanchip(struct safe_softc * sc)197625638cf4SSascha Wildner safe_cleanchip(struct safe_softc *sc)
197725638cf4SSascha Wildner {
197825638cf4SSascha Wildner
197925638cf4SSascha Wildner if (sc->sc_nqchip != 0) {
198025638cf4SSascha Wildner struct safe_ringentry *re = sc->sc_back;
198125638cf4SSascha Wildner
198225638cf4SSascha Wildner while (re != sc->sc_front) {
198325638cf4SSascha Wildner if (re->re_desc.d_csr != 0)
198425638cf4SSascha Wildner safe_free_entry(sc, re);
198525638cf4SSascha Wildner if (++re == sc->sc_ringtop)
198625638cf4SSascha Wildner re = sc->sc_ring;
198725638cf4SSascha Wildner }
198825638cf4SSascha Wildner sc->sc_back = re;
198925638cf4SSascha Wildner sc->sc_nqchip = 0;
199025638cf4SSascha Wildner }
199125638cf4SSascha Wildner }
199225638cf4SSascha Wildner
199325638cf4SSascha Wildner /*
199425638cf4SSascha Wildner * free a safe_q
199525638cf4SSascha Wildner * It is assumed that the caller is within splimp().
199625638cf4SSascha Wildner */
199725638cf4SSascha Wildner static int
safe_free_entry(struct safe_softc * sc,struct safe_ringentry * re)199825638cf4SSascha Wildner safe_free_entry(struct safe_softc *sc, struct safe_ringentry *re)
199925638cf4SSascha Wildner {
200025638cf4SSascha Wildner struct cryptop *crp;
200125638cf4SSascha Wildner
200225638cf4SSascha Wildner /*
200325638cf4SSascha Wildner * Free header MCR
200425638cf4SSascha Wildner */
200525638cf4SSascha Wildner if ((re->re_dst_m != NULL) && (re->re_src_m != re->re_dst_m))
200625638cf4SSascha Wildner m_freem(re->re_dst_m);
200725638cf4SSascha Wildner
200825638cf4SSascha Wildner crp = (struct cryptop *)re->re_crp;
200925638cf4SSascha Wildner
201025638cf4SSascha Wildner re->re_desc.d_csr = 0;
201125638cf4SSascha Wildner
201225638cf4SSascha Wildner crp->crp_etype = EFAULT;
201325638cf4SSascha Wildner crypto_done(crp);
201425638cf4SSascha Wildner return(0);
201525638cf4SSascha Wildner }
201625638cf4SSascha Wildner
201725638cf4SSascha Wildner /*
201825638cf4SSascha Wildner * Routine to reset the chip and clean up.
201925638cf4SSascha Wildner * It is assumed that the caller is in splimp()
202025638cf4SSascha Wildner */
202125638cf4SSascha Wildner static void
safe_totalreset(struct safe_softc * sc)202225638cf4SSascha Wildner safe_totalreset(struct safe_softc *sc)
202325638cf4SSascha Wildner {
202425638cf4SSascha Wildner safe_reset_board(sc);
202525638cf4SSascha Wildner safe_init_board(sc);
202625638cf4SSascha Wildner safe_cleanchip(sc);
202725638cf4SSascha Wildner }
202825638cf4SSascha Wildner
202925638cf4SSascha Wildner /*
203025638cf4SSascha Wildner * Is the operand suitable aligned for direct DMA. Each
203125638cf4SSascha Wildner * segment must be aligned on a 32-bit boundary and all
203225638cf4SSascha Wildner * but the last segment must be a multiple of 4 bytes.
203325638cf4SSascha Wildner */
203425638cf4SSascha Wildner static int
safe_dmamap_aligned(const struct safe_operand * op)203525638cf4SSascha Wildner safe_dmamap_aligned(const struct safe_operand *op)
203625638cf4SSascha Wildner {
203725638cf4SSascha Wildner int i;
203825638cf4SSascha Wildner
203925638cf4SSascha Wildner for (i = 0; i < op->nsegs; i++) {
204025638cf4SSascha Wildner if (op->segs[i].ds_addr & 3)
204125638cf4SSascha Wildner return (0);
204225638cf4SSascha Wildner if (i != (op->nsegs - 1) && (op->segs[i].ds_len & 3))
204325638cf4SSascha Wildner return (0);
204425638cf4SSascha Wildner }
204525638cf4SSascha Wildner return (1);
204625638cf4SSascha Wildner }
204725638cf4SSascha Wildner
204825638cf4SSascha Wildner /*
204925638cf4SSascha Wildner * Is the operand suitable for direct DMA as the destination
205025638cf4SSascha Wildner * of an operation. The hardware requires that each ``particle''
205125638cf4SSascha Wildner * but the last in an operation result have the same size. We
205225638cf4SSascha Wildner * fix that size at SAFE_MAX_DSIZE bytes. This routine returns
205325638cf4SSascha Wildner * 0 if some segment is not a multiple of of this size, 1 if all
205425638cf4SSascha Wildner * segments are exactly this size, or 2 if segments are at worst
205525638cf4SSascha Wildner * a multple of this size.
205625638cf4SSascha Wildner */
205725638cf4SSascha Wildner static int
safe_dmamap_uniform(const struct safe_operand * op)205825638cf4SSascha Wildner safe_dmamap_uniform(const struct safe_operand *op)
205925638cf4SSascha Wildner {
206025638cf4SSascha Wildner int result = 1;
206125638cf4SSascha Wildner
206225638cf4SSascha Wildner if (op->nsegs > 0) {
206325638cf4SSascha Wildner int i;
206425638cf4SSascha Wildner
206525638cf4SSascha Wildner for (i = 0; i < op->nsegs-1; i++) {
206625638cf4SSascha Wildner if (op->segs[i].ds_len % SAFE_MAX_DSIZE)
206725638cf4SSascha Wildner return (0);
206825638cf4SSascha Wildner if (op->segs[i].ds_len != SAFE_MAX_DSIZE)
206925638cf4SSascha Wildner result = 2;
207025638cf4SSascha Wildner }
207125638cf4SSascha Wildner }
207225638cf4SSascha Wildner return (result);
207325638cf4SSascha Wildner }
207425638cf4SSascha Wildner
207525638cf4SSascha Wildner #ifdef SAFE_DEBUG
207625638cf4SSascha Wildner static void
safe_dump_dmastatus(struct safe_softc * sc,const char * tag)207725638cf4SSascha Wildner safe_dump_dmastatus(struct safe_softc *sc, const char *tag)
207825638cf4SSascha Wildner {
207925638cf4SSascha Wildner kprintf("%s: ENDIAN 0x%x SRC 0x%x DST 0x%x STAT 0x%x\n"
208025638cf4SSascha Wildner , tag
208125638cf4SSascha Wildner , READ_REG(sc, SAFE_DMA_ENDIAN)
208225638cf4SSascha Wildner , READ_REG(sc, SAFE_DMA_SRCADDR)
208325638cf4SSascha Wildner , READ_REG(sc, SAFE_DMA_DSTADDR)
208425638cf4SSascha Wildner , READ_REG(sc, SAFE_DMA_STAT)
208525638cf4SSascha Wildner );
208625638cf4SSascha Wildner }
208725638cf4SSascha Wildner
208825638cf4SSascha Wildner static void
safe_dump_intrstate(struct safe_softc * sc,const char * tag)208925638cf4SSascha Wildner safe_dump_intrstate(struct safe_softc *sc, const char *tag)
209025638cf4SSascha Wildner {
209125638cf4SSascha Wildner kprintf("%s: HI_CFG 0x%x HI_MASK 0x%x HI_DESC_CNT 0x%x HU_STAT 0x%x HM_STAT 0x%x\n"
209225638cf4SSascha Wildner , tag
209325638cf4SSascha Wildner , READ_REG(sc, SAFE_HI_CFG)
209425638cf4SSascha Wildner , READ_REG(sc, SAFE_HI_MASK)
209525638cf4SSascha Wildner , READ_REG(sc, SAFE_HI_DESC_CNT)
209625638cf4SSascha Wildner , READ_REG(sc, SAFE_HU_STAT)
209725638cf4SSascha Wildner , READ_REG(sc, SAFE_HM_STAT)
209825638cf4SSascha Wildner );
209925638cf4SSascha Wildner }
210025638cf4SSascha Wildner
210125638cf4SSascha Wildner static void
safe_dump_ringstate(struct safe_softc * sc,const char * tag)210225638cf4SSascha Wildner safe_dump_ringstate(struct safe_softc *sc, const char *tag)
210325638cf4SSascha Wildner {
210425638cf4SSascha Wildner u_int32_t estat = READ_REG(sc, SAFE_PE_ERNGSTAT);
210525638cf4SSascha Wildner
210625638cf4SSascha Wildner /* NB: assume caller has lock on ring */
210725638cf4SSascha Wildner kprintf("%s: ERNGSTAT %x (next %u) back %lu front %lu\n",
210825638cf4SSascha Wildner tag,
210925638cf4SSascha Wildner estat, (estat >> SAFE_PE_ERNGSTAT_NEXT_S),
211025638cf4SSascha Wildner (unsigned long)(sc->sc_back - sc->sc_ring),
211125638cf4SSascha Wildner (unsigned long)(sc->sc_front - sc->sc_ring));
211225638cf4SSascha Wildner }
211325638cf4SSascha Wildner
211425638cf4SSascha Wildner static void
safe_dump_request(struct safe_softc * sc,const char * tag,struct safe_ringentry * re)211525638cf4SSascha Wildner safe_dump_request(struct safe_softc *sc, const char* tag, struct safe_ringentry *re)
211625638cf4SSascha Wildner {
211725638cf4SSascha Wildner int ix, nsegs;
211825638cf4SSascha Wildner
211925638cf4SSascha Wildner ix = re - sc->sc_ring;
212025638cf4SSascha Wildner kprintf("%s: %p (%u): csr %x src %x dst %x sa %x len %x\n"
212125638cf4SSascha Wildner , tag
212225638cf4SSascha Wildner , re, ix
212325638cf4SSascha Wildner , re->re_desc.d_csr
212425638cf4SSascha Wildner , re->re_desc.d_src
212525638cf4SSascha Wildner , re->re_desc.d_dst
212625638cf4SSascha Wildner , re->re_desc.d_sa
212725638cf4SSascha Wildner , re->re_desc.d_len
212825638cf4SSascha Wildner );
212925638cf4SSascha Wildner if (re->re_src.nsegs > 1) {
213025638cf4SSascha Wildner ix = (re->re_desc.d_src - sc->sc_spalloc.dma_paddr) /
213125638cf4SSascha Wildner sizeof(struct safe_pdesc);
213225638cf4SSascha Wildner for (nsegs = re->re_src.nsegs; nsegs; nsegs--) {
213325638cf4SSascha Wildner kprintf(" spd[%u] %p: %p size %u flags %x"
213425638cf4SSascha Wildner , ix, &sc->sc_spring[ix]
213525638cf4SSascha Wildner , (caddr_t)(uintptr_t) sc->sc_spring[ix].pd_addr
213625638cf4SSascha Wildner , sc->sc_spring[ix].pd_size
213725638cf4SSascha Wildner , sc->sc_spring[ix].pd_flags
213825638cf4SSascha Wildner );
213925638cf4SSascha Wildner if (sc->sc_spring[ix].pd_size == 0)
214025638cf4SSascha Wildner kprintf(" (zero!)");
214125638cf4SSascha Wildner kprintf("\n");
214225638cf4SSascha Wildner if (++ix == SAFE_TOTAL_SPART)
214325638cf4SSascha Wildner ix = 0;
214425638cf4SSascha Wildner }
214525638cf4SSascha Wildner }
214625638cf4SSascha Wildner if (re->re_dst.nsegs > 1) {
214725638cf4SSascha Wildner ix = (re->re_desc.d_dst - sc->sc_dpalloc.dma_paddr) /
214825638cf4SSascha Wildner sizeof(struct safe_pdesc);
214925638cf4SSascha Wildner for (nsegs = re->re_dst.nsegs; nsegs; nsegs--) {
215025638cf4SSascha Wildner kprintf(" dpd[%u] %p: %p flags %x\n"
215125638cf4SSascha Wildner , ix, &sc->sc_dpring[ix]
215225638cf4SSascha Wildner , (caddr_t)(uintptr_t) sc->sc_dpring[ix].pd_addr
215325638cf4SSascha Wildner , sc->sc_dpring[ix].pd_flags
215425638cf4SSascha Wildner );
215525638cf4SSascha Wildner if (++ix == SAFE_TOTAL_DPART)
215625638cf4SSascha Wildner ix = 0;
215725638cf4SSascha Wildner }
215825638cf4SSascha Wildner }
215925638cf4SSascha Wildner kprintf("sa: cmd0 %08x cmd1 %08x staterec %x\n",
216025638cf4SSascha Wildner re->re_sa.sa_cmd0, re->re_sa.sa_cmd1, re->re_sa.sa_staterec);
216125638cf4SSascha Wildner kprintf("sa: key %x %x %x %x %x %x %x %x\n"
216225638cf4SSascha Wildner , re->re_sa.sa_key[0]
216325638cf4SSascha Wildner , re->re_sa.sa_key[1]
216425638cf4SSascha Wildner , re->re_sa.sa_key[2]
216525638cf4SSascha Wildner , re->re_sa.sa_key[3]
216625638cf4SSascha Wildner , re->re_sa.sa_key[4]
216725638cf4SSascha Wildner , re->re_sa.sa_key[5]
216825638cf4SSascha Wildner , re->re_sa.sa_key[6]
216925638cf4SSascha Wildner , re->re_sa.sa_key[7]
217025638cf4SSascha Wildner );
217125638cf4SSascha Wildner kprintf("sa: indigest %x %x %x %x %x\n"
217225638cf4SSascha Wildner , re->re_sa.sa_indigest[0]
217325638cf4SSascha Wildner , re->re_sa.sa_indigest[1]
217425638cf4SSascha Wildner , re->re_sa.sa_indigest[2]
217525638cf4SSascha Wildner , re->re_sa.sa_indigest[3]
217625638cf4SSascha Wildner , re->re_sa.sa_indigest[4]
217725638cf4SSascha Wildner );
217825638cf4SSascha Wildner kprintf("sa: outdigest %x %x %x %x %x\n"
217925638cf4SSascha Wildner , re->re_sa.sa_outdigest[0]
218025638cf4SSascha Wildner , re->re_sa.sa_outdigest[1]
218125638cf4SSascha Wildner , re->re_sa.sa_outdigest[2]
218225638cf4SSascha Wildner , re->re_sa.sa_outdigest[3]
218325638cf4SSascha Wildner , re->re_sa.sa_outdigest[4]
218425638cf4SSascha Wildner );
218525638cf4SSascha Wildner kprintf("sr: iv %x %x %x %x\n"
218625638cf4SSascha Wildner , re->re_sastate.sa_saved_iv[0]
218725638cf4SSascha Wildner , re->re_sastate.sa_saved_iv[1]
218825638cf4SSascha Wildner , re->re_sastate.sa_saved_iv[2]
218925638cf4SSascha Wildner , re->re_sastate.sa_saved_iv[3]
219025638cf4SSascha Wildner );
219125638cf4SSascha Wildner kprintf("sr: hashbc %u indigest %x %x %x %x %x\n"
219225638cf4SSascha Wildner , re->re_sastate.sa_saved_hashbc
219325638cf4SSascha Wildner , re->re_sastate.sa_saved_indigest[0]
219425638cf4SSascha Wildner , re->re_sastate.sa_saved_indigest[1]
219525638cf4SSascha Wildner , re->re_sastate.sa_saved_indigest[2]
219625638cf4SSascha Wildner , re->re_sastate.sa_saved_indigest[3]
219725638cf4SSascha Wildner , re->re_sastate.sa_saved_indigest[4]
219825638cf4SSascha Wildner );
219925638cf4SSascha Wildner }
220025638cf4SSascha Wildner
220125638cf4SSascha Wildner static void
safe_dump_ring(struct safe_softc * sc,const char * tag)220225638cf4SSascha Wildner safe_dump_ring(struct safe_softc *sc, const char *tag)
220325638cf4SSascha Wildner {
220425638cf4SSascha Wildner lockmgr(&sc->sc_ringlock, LK_EXCLUSIVE);
220525638cf4SSascha Wildner kprintf("\nSafeNet Ring State:\n");
220625638cf4SSascha Wildner safe_dump_intrstate(sc, tag);
220725638cf4SSascha Wildner safe_dump_dmastatus(sc, tag);
220825638cf4SSascha Wildner safe_dump_ringstate(sc, tag);
220925638cf4SSascha Wildner if (sc->sc_nqchip) {
221025638cf4SSascha Wildner struct safe_ringentry *re = sc->sc_back;
221125638cf4SSascha Wildner do {
221225638cf4SSascha Wildner safe_dump_request(sc, tag, re);
221325638cf4SSascha Wildner if (++re == sc->sc_ringtop)
221425638cf4SSascha Wildner re = sc->sc_ring;
221525638cf4SSascha Wildner } while (re != sc->sc_front);
221625638cf4SSascha Wildner }
221725638cf4SSascha Wildner lockmgr(&sc->sc_ringlock, LK_RELEASE);
221825638cf4SSascha Wildner }
221925638cf4SSascha Wildner
222025638cf4SSascha Wildner static int
sysctl_hw_safe_dump(SYSCTL_HANDLER_ARGS)222125638cf4SSascha Wildner sysctl_hw_safe_dump(SYSCTL_HANDLER_ARGS)
222225638cf4SSascha Wildner {
222325638cf4SSascha Wildner char dmode[64];
222425638cf4SSascha Wildner int error;
222525638cf4SSascha Wildner
222625638cf4SSascha Wildner strncpy(dmode, "", sizeof(dmode) - 1);
222725638cf4SSascha Wildner dmode[sizeof(dmode) - 1] = '\0';
222825638cf4SSascha Wildner error = sysctl_handle_string(oidp, &dmode[0], sizeof(dmode), req);
222925638cf4SSascha Wildner
223025638cf4SSascha Wildner if (error == 0 && req->newptr != NULL) {
223125638cf4SSascha Wildner struct safe_softc *sc = safec;
223225638cf4SSascha Wildner
223325638cf4SSascha Wildner if (!sc)
223425638cf4SSascha Wildner return EINVAL;
223525638cf4SSascha Wildner if (strncmp(dmode, "dma", 3) == 0)
223625638cf4SSascha Wildner safe_dump_dmastatus(sc, "safe0");
223725638cf4SSascha Wildner else if (strncmp(dmode, "int", 3) == 0)
223825638cf4SSascha Wildner safe_dump_intrstate(sc, "safe0");
223925638cf4SSascha Wildner else if (strncmp(dmode, "ring", 4) == 0)
224025638cf4SSascha Wildner safe_dump_ring(sc, "safe0");
224125638cf4SSascha Wildner else
224225638cf4SSascha Wildner return EINVAL;
224325638cf4SSascha Wildner }
224425638cf4SSascha Wildner return error;
224525638cf4SSascha Wildner }
224625638cf4SSascha Wildner SYSCTL_PROC(_hw_safe, OID_AUTO, dump, CTLTYPE_STRING | CTLFLAG_RW,
224725638cf4SSascha Wildner 0, 0, sysctl_hw_safe_dump, "A", "Dump driver state");
224825638cf4SSascha Wildner #endif /* SAFE_DEBUG */
2249