mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@32672 3c298f89-4303-0410-b956-a3cf2f4a3e73
2955 lines
77 KiB
C
2955 lines
77 KiB
C
/* $OpenBSD: hifn7751.c,v 1.120 2002/05/17 00:33:34 deraadt Exp $ */
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/*-
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* Invertex AEON / Hifn 7751 driver
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* Copyright (c) 1999 Invertex Inc. All rights reserved.
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* Copyright (c) 1999 Theo de Raadt
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* Copyright (c) 2000-2001 Network Security Technologies, Inc.
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* http://www.netsec.net
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* Copyright (c) 2003 Hifn Inc.
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*
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* This driver is based on a previous driver by Invertex, for which they
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* requested: Please send any comments, feedback, bug-fixes, or feature
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* requests to software@invertex.com.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Effort sponsored in part by the Defense Advanced Research Projects
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* Agency (DARPA) and Air Force Research Laboratory, Air Force
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* Materiel Command, USAF, under agreement number F30602-01-2-0537.
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*
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*
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__FBSDID("$FreeBSD: src/sys/dev/hifn/hifn7751.c,v 1.40 2007/03/21 03:42:49 sam Exp $");
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*/
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/*
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* Driver for various Hifn encryption processors.
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*/
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#include <linux/version.h>
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#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,38) && !defined(AUTOCONF_INCLUDED)
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#include <linux/config.h>
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#endif
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/list.h>
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#include <linux/slab.h>
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#include <linux/wait.h>
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#include <linux/sched.h>
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#include <linux/pci.h>
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#include <linux/delay.h>
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#include <linux/interrupt.h>
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#include <linux/spinlock.h>
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#include <linux/random.h>
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#include <linux/skbuff.h>
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#include <asm/io.h>
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#include <cryptodev.h>
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#include <uio.h>
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#include <hifn/hifn7751reg.h>
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#include <hifn/hifn7751var.h>
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#if 1
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#define DPRINTF(a...) if (hifn_debug) { \
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printk("%s: ", sc ? \
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device_get_nameunit(sc->sc_dev) : "hifn"); \
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printk(a); \
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} else
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#else
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#define DPRINTF(a...)
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#endif
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static inline int
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pci_get_revid(struct pci_dev *dev)
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{
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u8 rid = 0;
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pci_read_config_byte(dev, PCI_REVISION_ID, &rid);
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return rid;
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}
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static struct hifn_stats hifnstats;
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#define debug hifn_debug
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int hifn_debug = 0;
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module_param(hifn_debug, int, 0644);
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MODULE_PARM_DESC(hifn_debug, "Enable debug");
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int hifn_maxbatch = 1;
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module_param(hifn_maxbatch, int, 0644);
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MODULE_PARM_DESC(hifn_maxbatch, "max ops to batch w/o interrupt");
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int hifn_cache_linesize = 0x10;
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module_param(hifn_cache_linesize, int, 0444);
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MODULE_PARM_DESC(hifn_cache_linesize, "PCI config cache line size");
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#ifdef MODULE_PARM
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char *hifn_pllconfig = NULL;
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MODULE_PARM(hifn_pllconfig, "s");
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#else
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char hifn_pllconfig[32]; /* This setting is RO after loading */
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module_param_string(hifn_pllconfig, hifn_pllconfig, 32, 0444);
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#endif
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MODULE_PARM_DESC(hifn_pllconfig, "PLL config, ie., pci66, ext33, ...");
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#ifdef HIFN_VULCANDEV
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#include <sys/conf.h>
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#include <sys/uio.h>
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static struct cdevsw vulcanpk_cdevsw; /* forward declaration */
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#endif
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/*
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* Prototypes and count for the pci_device structure
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*/
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static int hifn_probe(struct pci_dev *dev, const struct pci_device_id *ent);
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static void hifn_remove(struct pci_dev *dev);
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static int hifn_newsession(device_t, u_int32_t *, struct cryptoini *);
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static int hifn_freesession(device_t, u_int64_t);
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static int hifn_process(device_t, struct cryptop *, int);
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static device_method_t hifn_methods = {
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/* crypto device methods */
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DEVMETHOD(cryptodev_newsession, hifn_newsession),
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DEVMETHOD(cryptodev_freesession,hifn_freesession),
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DEVMETHOD(cryptodev_process, hifn_process),
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};
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static void hifn_reset_board(struct hifn_softc *, int);
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static void hifn_reset_puc(struct hifn_softc *);
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static void hifn_puc_wait(struct hifn_softc *);
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static int hifn_enable_crypto(struct hifn_softc *);
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static void hifn_set_retry(struct hifn_softc *sc);
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static void hifn_init_dma(struct hifn_softc *);
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static void hifn_init_pci_registers(struct hifn_softc *);
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static int hifn_sramsize(struct hifn_softc *);
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static int hifn_dramsize(struct hifn_softc *);
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static int hifn_ramtype(struct hifn_softc *);
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static void hifn_sessions(struct hifn_softc *);
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,19)
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static irqreturn_t hifn_intr(int irq, void *arg);
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#else
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static irqreturn_t hifn_intr(int irq, void *arg, struct pt_regs *regs);
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#endif
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static u_int hifn_write_command(struct hifn_command *, u_int8_t *);
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static u_int32_t hifn_next_signature(u_int32_t a, u_int cnt);
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static void hifn_callback(struct hifn_softc *, struct hifn_command *, u_int8_t *);
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static int hifn_crypto(struct hifn_softc *, struct hifn_command *, struct cryptop *, int);
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static int hifn_readramaddr(struct hifn_softc *, int, u_int8_t *);
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static int hifn_writeramaddr(struct hifn_softc *, int, u_int8_t *);
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static int hifn_dmamap_load_src(struct hifn_softc *, struct hifn_command *);
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static int hifn_dmamap_load_dst(struct hifn_softc *, struct hifn_command *);
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static int hifn_init_pubrng(struct hifn_softc *);
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static void hifn_tick(unsigned long arg);
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static void hifn_abort(struct hifn_softc *);
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static void hifn_alloc_slot(struct hifn_softc *, int *, int *, int *, int *);
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static void hifn_write_reg_0(struct hifn_softc *, bus_size_t, u_int32_t);
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static void hifn_write_reg_1(struct hifn_softc *, bus_size_t, u_int32_t);
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#ifdef CONFIG_OCF_RANDOMHARVEST
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static int hifn_read_random(void *arg, u_int32_t *buf, int len);
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#endif
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#define HIFN_MAX_CHIPS 8
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static struct hifn_softc *hifn_chip_idx[HIFN_MAX_CHIPS];
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static __inline u_int32_t
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READ_REG_0(struct hifn_softc *sc, bus_size_t reg)
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{
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u_int32_t v = readl(sc->sc_bar0 + reg);
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sc->sc_bar0_lastreg = (bus_size_t) -1;
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return (v);
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}
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#define WRITE_REG_0(sc, reg, val) hifn_write_reg_0(sc, reg, val)
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static __inline u_int32_t
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READ_REG_1(struct hifn_softc *sc, bus_size_t reg)
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{
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u_int32_t v = readl(sc->sc_bar1 + reg);
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sc->sc_bar1_lastreg = (bus_size_t) -1;
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return (v);
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}
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#define WRITE_REG_1(sc, reg, val) hifn_write_reg_1(sc, reg, val)
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/*
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* map in a given buffer (great on some arches :-)
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*/
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static int
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pci_map_uio(struct hifn_softc *sc, struct hifn_operand *buf, struct uio *uio)
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{
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struct iovec *iov = uio->uio_iov;
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DPRINTF("%s()\n", __FUNCTION__);
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buf->mapsize = 0;
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for (buf->nsegs = 0; buf->nsegs < uio->uio_iovcnt; ) {
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buf->segs[buf->nsegs].ds_addr = pci_map_single(sc->sc_pcidev,
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iov->iov_base, iov->iov_len,
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PCI_DMA_BIDIRECTIONAL);
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buf->segs[buf->nsegs].ds_len = iov->iov_len;
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buf->mapsize += iov->iov_len;
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iov++;
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buf->nsegs++;
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}
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/* identify this buffer by the first segment */
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buf->map = (void *) buf->segs[0].ds_addr;
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return(0);
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}
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/*
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* map in a given sk_buff
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*/
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static int
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pci_map_skb(struct hifn_softc *sc,struct hifn_operand *buf,struct sk_buff *skb)
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{
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int i;
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DPRINTF("%s()\n", __FUNCTION__);
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buf->mapsize = 0;
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buf->segs[0].ds_addr = pci_map_single(sc->sc_pcidev,
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skb->data, skb_headlen(skb), PCI_DMA_BIDIRECTIONAL);
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buf->segs[0].ds_len = skb_headlen(skb);
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buf->mapsize += buf->segs[0].ds_len;
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buf->nsegs = 1;
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for (i = 0; i < skb_shinfo(skb)->nr_frags; ) {
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buf->segs[buf->nsegs].ds_len = skb_shinfo(skb)->frags[i].size;
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buf->segs[buf->nsegs].ds_addr = pci_map_single(sc->sc_pcidev,
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page_address(skb_frag_page(&skb_shinfo(skb)->frags[i])) +
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skb_shinfo(skb)->frags[i].page_offset,
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buf->segs[buf->nsegs].ds_len, PCI_DMA_BIDIRECTIONAL);
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buf->mapsize += buf->segs[buf->nsegs].ds_len;
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buf->nsegs++;
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}
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/* identify this buffer by the first segment */
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buf->map = (void *) buf->segs[0].ds_addr;
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return(0);
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}
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/*
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* map in a given contiguous buffer
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*/
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static int
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pci_map_buf(struct hifn_softc *sc,struct hifn_operand *buf, void *b, int len)
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{
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DPRINTF("%s()\n", __FUNCTION__);
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buf->mapsize = 0;
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buf->segs[0].ds_addr = pci_map_single(sc->sc_pcidev,
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b, len, PCI_DMA_BIDIRECTIONAL);
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buf->segs[0].ds_len = len;
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buf->mapsize += buf->segs[0].ds_len;
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buf->nsegs = 1;
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/* identify this buffer by the first segment */
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buf->map = (void *) buf->segs[0].ds_addr;
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return(0);
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}
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#if 0 /* not needed at this time */
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static void
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pci_sync_iov(struct hifn_softc *sc, struct hifn_operand *buf)
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{
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int i;
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DPRINTF("%s()\n", __FUNCTION__);
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for (i = 0; i < buf->nsegs; i++)
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pci_dma_sync_single_for_cpu(sc->sc_pcidev, buf->segs[i].ds_addr,
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buf->segs[i].ds_len, PCI_DMA_BIDIRECTIONAL);
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}
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#endif
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static void
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pci_unmap_buf(struct hifn_softc *sc, struct hifn_operand *buf)
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{
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int i;
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DPRINTF("%s()\n", __FUNCTION__);
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for (i = 0; i < buf->nsegs; i++) {
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pci_unmap_single(sc->sc_pcidev, buf->segs[i].ds_addr,
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buf->segs[i].ds_len, PCI_DMA_BIDIRECTIONAL);
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buf->segs[i].ds_addr = 0;
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buf->segs[i].ds_len = 0;
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}
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buf->nsegs = 0;
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buf->mapsize = 0;
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buf->map = 0;
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}
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static const char*
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hifn_partname(struct hifn_softc *sc)
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{
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/* XXX sprintf numbers when not decoded */
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switch (pci_get_vendor(sc->sc_pcidev)) {
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case PCI_VENDOR_HIFN:
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switch (pci_get_device(sc->sc_pcidev)) {
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case PCI_PRODUCT_HIFN_6500: return "Hifn 6500";
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case PCI_PRODUCT_HIFN_7751: return "Hifn 7751";
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case PCI_PRODUCT_HIFN_7811: return "Hifn 7811";
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case PCI_PRODUCT_HIFN_7951: return "Hifn 7951";
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case PCI_PRODUCT_HIFN_7955: return "Hifn 7955";
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case PCI_PRODUCT_HIFN_7956: return "Hifn 7956";
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}
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return "Hifn unknown-part";
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case PCI_VENDOR_INVERTEX:
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switch (pci_get_device(sc->sc_pcidev)) {
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case PCI_PRODUCT_INVERTEX_AEON: return "Invertex AEON";
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}
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return "Invertex unknown-part";
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case PCI_VENDOR_NETSEC:
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switch (pci_get_device(sc->sc_pcidev)) {
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case PCI_PRODUCT_NETSEC_7751: return "NetSec 7751";
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}
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return "NetSec unknown-part";
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}
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return "Unknown-vendor unknown-part";
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}
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static u_int
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checkmaxmin(struct pci_dev *dev, const char *what, u_int v, u_int min, u_int max)
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{
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struct hifn_softc *sc = pci_get_drvdata(dev);
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if (v > max) {
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device_printf(sc->sc_dev, "Warning, %s %u out of range, "
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"using max %u\n", what, v, max);
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v = max;
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} else if (v < min) {
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device_printf(sc->sc_dev, "Warning, %s %u out of range, "
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"using min %u\n", what, v, min);
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v = min;
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}
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return v;
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}
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/*
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* Select PLL configuration for 795x parts. This is complicated in
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* that we cannot determine the optimal parameters without user input.
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* The reference clock is derived from an external clock through a
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* multiplier. The external clock is either the host bus (i.e. PCI)
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* or an external clock generator. When using the PCI bus we assume
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* the clock is either 33 or 66 MHz; for an external source we cannot
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* tell the speed.
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*
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* PLL configuration is done with a string: "pci" for PCI bus, or "ext"
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* for an external source, followed by the frequency. We calculate
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* the appropriate multiplier and PLL register contents accordingly.
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* When no configuration is given we default to "pci66" since that
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* always will allow the card to work. If a card is using the PCI
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* bus clock and in a 33MHz slot then it will be operating at half
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* speed until the correct information is provided.
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*
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* We use a default setting of "ext66" because according to Mike Ham
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* of HiFn, almost every board in existence has an external crystal
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* populated at 66Mhz. Using PCI can be a problem on modern motherboards,
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* because PCI33 can have clocks from 0 to 33Mhz, and some have
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* non-PCI-compliant spread-spectrum clocks, which can confuse the pll.
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*/
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static void
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hifn_getpllconfig(struct pci_dev *dev, u_int *pll)
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{
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const char *pllspec = hifn_pllconfig;
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u_int freq, mul, fl, fh;
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u_int32_t pllconfig;
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char *nxt;
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if (pllspec == NULL)
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pllspec = "ext66";
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fl = 33, fh = 66;
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pllconfig = 0;
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if (strncmp(pllspec, "ext", 3) == 0) {
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pllspec += 3;
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pllconfig |= HIFN_PLL_REF_SEL;
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switch (pci_get_device(dev)) {
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case PCI_PRODUCT_HIFN_7955:
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case PCI_PRODUCT_HIFN_7956:
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fl = 20, fh = 100;
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break;
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#ifdef notyet
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case PCI_PRODUCT_HIFN_7954:
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fl = 20, fh = 66;
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break;
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#endif
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}
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} else if (strncmp(pllspec, "pci", 3) == 0)
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pllspec += 3;
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freq = strtoul(pllspec, &nxt, 10);
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if (nxt == pllspec)
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freq = 66;
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else
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freq = checkmaxmin(dev, "frequency", freq, fl, fh);
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/*
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* Calculate multiplier. We target a Fck of 266 MHz,
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* allowing only even values, possibly rounded down.
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* Multipliers > 8 must set the charge pump current.
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*/
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mul = checkmaxmin(dev, "PLL divisor", (266 / freq) &~ 1, 2, 12);
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pllconfig |= (mul / 2 - 1) << HIFN_PLL_ND_SHIFT;
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if (mul > 8)
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pllconfig |= HIFN_PLL_IS;
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*pll = pllconfig;
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}
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|
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/*
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* Attach an interface that successfully probed.
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*/
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static int
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hifn_probe(struct pci_dev *dev, const struct pci_device_id *ent)
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{
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struct hifn_softc *sc = NULL;
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char rbase;
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u_int16_t ena, rev;
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int rseg, rc;
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unsigned long mem_start, mem_len;
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static int num_chips = 0;
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DPRINTF("%s()\n", __FUNCTION__);
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if (pci_enable_device(dev) < 0)
|
|
return(-ENODEV);
|
|
|
|
if (pci_set_mwi(dev))
|
|
return(-ENODEV);
|
|
|
|
if (!dev->irq) {
|
|
printk("hifn: found device with no IRQ assigned. check BIOS settings!");
|
|
pci_disable_device(dev);
|
|
return(-ENODEV);
|
|
}
|
|
|
|
sc = (struct hifn_softc *) kmalloc(sizeof(*sc), GFP_KERNEL);
|
|
if (!sc)
|
|
return(-ENOMEM);
|
|
memset(sc, 0, sizeof(*sc));
|
|
|
|
softc_device_init(sc, "hifn", num_chips, hifn_methods);
|
|
|
|
sc->sc_pcidev = dev;
|
|
sc->sc_irq = -1;
|
|
sc->sc_cid = -1;
|
|
sc->sc_num = num_chips++;
|
|
if (sc->sc_num < HIFN_MAX_CHIPS)
|
|
hifn_chip_idx[sc->sc_num] = sc;
|
|
|
|
pci_set_drvdata(sc->sc_pcidev, sc);
|
|
|
|
spin_lock_init(&sc->sc_mtx);
|
|
|
|
/* XXX handle power management */
|
|
|
|
/*
|
|
* The 7951 and 795x have a random number generator and
|
|
* public key support; note this.
|
|
*/
|
|
if (pci_get_vendor(dev) == PCI_VENDOR_HIFN &&
|
|
(pci_get_device(dev) == PCI_PRODUCT_HIFN_7951 ||
|
|
pci_get_device(dev) == PCI_PRODUCT_HIFN_7955 ||
|
|
pci_get_device(dev) == PCI_PRODUCT_HIFN_7956))
|
|
sc->sc_flags = HIFN_HAS_RNG | HIFN_HAS_PUBLIC;
|
|
/*
|
|
* The 7811 has a random number generator and
|
|
* we also note it's identity 'cuz of some quirks.
|
|
*/
|
|
if (pci_get_vendor(dev) == PCI_VENDOR_HIFN &&
|
|
pci_get_device(dev) == PCI_PRODUCT_HIFN_7811)
|
|
sc->sc_flags |= HIFN_IS_7811 | HIFN_HAS_RNG;
|
|
|
|
/*
|
|
* The 795x parts support AES.
|
|
*/
|
|
if (pci_get_vendor(dev) == PCI_VENDOR_HIFN &&
|
|
(pci_get_device(dev) == PCI_PRODUCT_HIFN_7955 ||
|
|
pci_get_device(dev) == PCI_PRODUCT_HIFN_7956)) {
|
|
sc->sc_flags |= HIFN_IS_7956 | HIFN_HAS_AES;
|
|
/*
|
|
* Select PLL configuration. This depends on the
|
|
* bus and board design and must be manually configured
|
|
* if the default setting is unacceptable.
|
|
*/
|
|
hifn_getpllconfig(dev, &sc->sc_pllconfig);
|
|
}
|
|
|
|
/*
|
|
* Setup PCI resources. Note that we record the bus
|
|
* tag and handle for each register mapping, this is
|
|
* used by the READ_REG_0, WRITE_REG_0, READ_REG_1,
|
|
* and WRITE_REG_1 macros throughout the driver.
|
|
*/
|
|
mem_start = pci_resource_start(sc->sc_pcidev, 0);
|
|
mem_len = pci_resource_len(sc->sc_pcidev, 0);
|
|
sc->sc_bar0 = (ocf_iomem_t) ioremap(mem_start, mem_len);
|
|
if (!sc->sc_bar0) {
|
|
device_printf(sc->sc_dev, "cannot map bar%d register space\n", 0);
|
|
goto fail;
|
|
}
|
|
sc->sc_bar0_lastreg = (bus_size_t) -1;
|
|
|
|
mem_start = pci_resource_start(sc->sc_pcidev, 1);
|
|
mem_len = pci_resource_len(sc->sc_pcidev, 1);
|
|
sc->sc_bar1 = (ocf_iomem_t) ioremap(mem_start, mem_len);
|
|
if (!sc->sc_bar1) {
|
|
device_printf(sc->sc_dev, "cannot map bar%d register space\n", 1);
|
|
goto fail;
|
|
}
|
|
sc->sc_bar1_lastreg = (bus_size_t) -1;
|
|
|
|
/* fix up the bus size */
|
|
if (pci_set_dma_mask(dev, DMA_32BIT_MASK)) {
|
|
device_printf(sc->sc_dev, "No usable DMA configuration, aborting.\n");
|
|
goto fail;
|
|
}
|
|
if (pci_set_consistent_dma_mask(dev, DMA_32BIT_MASK)) {
|
|
device_printf(sc->sc_dev,
|
|
"No usable consistent DMA configuration, aborting.\n");
|
|
goto fail;
|
|
}
|
|
|
|
hifn_set_retry(sc);
|
|
|
|
/*
|
|
* Setup the area where the Hifn DMA's descriptors
|
|
* and associated data structures.
|
|
*/
|
|
sc->sc_dma = (struct hifn_dma *) pci_alloc_consistent(dev,
|
|
sizeof(*sc->sc_dma),
|
|
&sc->sc_dma_physaddr);
|
|
if (!sc->sc_dma) {
|
|
device_printf(sc->sc_dev, "cannot alloc sc_dma\n");
|
|
goto fail;
|
|
}
|
|
bzero(sc->sc_dma, sizeof(*sc->sc_dma));
|
|
|
|
/*
|
|
* Reset the board and do the ``secret handshake''
|
|
* to enable the crypto support. Then complete the
|
|
* initialization procedure by setting up the interrupt
|
|
* and hooking in to the system crypto support so we'll
|
|
* get used for system services like the crypto device,
|
|
* IPsec, RNG device, etc.
|
|
*/
|
|
hifn_reset_board(sc, 0);
|
|
|
|
if (hifn_enable_crypto(sc) != 0) {
|
|
device_printf(sc->sc_dev, "crypto enabling failed\n");
|
|
goto fail;
|
|
}
|
|
hifn_reset_puc(sc);
|
|
|
|
hifn_init_dma(sc);
|
|
hifn_init_pci_registers(sc);
|
|
|
|
pci_set_master(sc->sc_pcidev);
|
|
|
|
/* XXX can't dynamically determine ram type for 795x; force dram */
|
|
if (sc->sc_flags & HIFN_IS_7956)
|
|
sc->sc_drammodel = 1;
|
|
else if (hifn_ramtype(sc))
|
|
goto fail;
|
|
|
|
if (sc->sc_drammodel == 0)
|
|
hifn_sramsize(sc);
|
|
else
|
|
hifn_dramsize(sc);
|
|
|
|
/*
|
|
* Workaround for NetSec 7751 rev A: half ram size because two
|
|
* of the address lines were left floating
|
|
*/
|
|
if (pci_get_vendor(dev) == PCI_VENDOR_NETSEC &&
|
|
pci_get_device(dev) == PCI_PRODUCT_NETSEC_7751 &&
|
|
pci_get_revid(dev) == 0x61) /*XXX???*/
|
|
sc->sc_ramsize >>= 1;
|
|
|
|
/*
|
|
* Arrange the interrupt line.
|
|
*/
|
|
rc = request_irq(dev->irq, hifn_intr, IRQF_SHARED, "hifn", sc);
|
|
if (rc) {
|
|
device_printf(sc->sc_dev, "could not map interrupt: %d\n", rc);
|
|
goto fail;
|
|
}
|
|
sc->sc_irq = dev->irq;
|
|
|
|
hifn_sessions(sc);
|
|
|
|
/*
|
|
* NB: Keep only the low 16 bits; this masks the chip id
|
|
* from the 7951.
|
|
*/
|
|
rev = READ_REG_1(sc, HIFN_1_REVID) & 0xffff;
|
|
|
|
rseg = sc->sc_ramsize / 1024;
|
|
rbase = 'K';
|
|
if (sc->sc_ramsize >= (1024 * 1024)) {
|
|
rbase = 'M';
|
|
rseg /= 1024;
|
|
}
|
|
device_printf(sc->sc_dev, "%s, rev %u, %d%cB %cram",
|
|
hifn_partname(sc), rev,
|
|
rseg, rbase, sc->sc_drammodel ? 'd' : 's');
|
|
if (sc->sc_flags & HIFN_IS_7956)
|
|
printf(", pll=0x%x<%s clk, %ux mult>",
|
|
sc->sc_pllconfig,
|
|
sc->sc_pllconfig & HIFN_PLL_REF_SEL ? "ext" : "pci",
|
|
2 + 2*((sc->sc_pllconfig & HIFN_PLL_ND) >> 11));
|
|
printf("\n");
|
|
|
|
sc->sc_cid = crypto_get_driverid(softc_get_device(sc),CRYPTOCAP_F_HARDWARE);
|
|
if (sc->sc_cid < 0) {
|
|
device_printf(sc->sc_dev, "could not get crypto driver id\n");
|
|
goto fail;
|
|
}
|
|
|
|
WRITE_REG_0(sc, HIFN_0_PUCNFG,
|
|
READ_REG_0(sc, HIFN_0_PUCNFG) | HIFN_PUCNFG_CHIPID);
|
|
ena = READ_REG_0(sc, HIFN_0_PUSTAT) & HIFN_PUSTAT_CHIPENA;
|
|
|
|
switch (ena) {
|
|
case HIFN_PUSTAT_ENA_2:
|
|
crypto_register(sc->sc_cid, CRYPTO_3DES_CBC, 0, 0);
|
|
crypto_register(sc->sc_cid, CRYPTO_ARC4, 0, 0);
|
|
if (sc->sc_flags & HIFN_HAS_AES)
|
|
crypto_register(sc->sc_cid, CRYPTO_AES_CBC, 0, 0);
|
|
/*FALLTHROUGH*/
|
|
case HIFN_PUSTAT_ENA_1:
|
|
crypto_register(sc->sc_cid, CRYPTO_MD5, 0, 0);
|
|
crypto_register(sc->sc_cid, CRYPTO_SHA1, 0, 0);
|
|
crypto_register(sc->sc_cid, CRYPTO_MD5_HMAC, 0, 0);
|
|
crypto_register(sc->sc_cid, CRYPTO_SHA1_HMAC, 0, 0);
|
|
crypto_register(sc->sc_cid, CRYPTO_DES_CBC, 0, 0);
|
|
break;
|
|
}
|
|
|
|
if (sc->sc_flags & (HIFN_HAS_PUBLIC | HIFN_HAS_RNG))
|
|
hifn_init_pubrng(sc);
|
|
|
|
init_timer(&sc->sc_tickto);
|
|
sc->sc_tickto.function = hifn_tick;
|
|
sc->sc_tickto.data = (unsigned long) sc->sc_num;
|
|
mod_timer(&sc->sc_tickto, jiffies + HZ);
|
|
|
|
return (0);
|
|
|
|
fail:
|
|
if (sc->sc_cid >= 0)
|
|
crypto_unregister_all(sc->sc_cid);
|
|
if (sc->sc_irq != -1)
|
|
free_irq(sc->sc_irq, sc);
|
|
if (sc->sc_dma) {
|
|
/* Turn off DMA polling */
|
|
WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET |
|
|
HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE);
|
|
|
|
pci_free_consistent(sc->sc_pcidev,
|
|
sizeof(*sc->sc_dma),
|
|
sc->sc_dma, sc->sc_dma_physaddr);
|
|
}
|
|
kfree(sc);
|
|
return (-ENXIO);
|
|
}
|
|
|
|
/*
|
|
* Detach an interface that successfully probed.
|
|
*/
|
|
static void
|
|
hifn_remove(struct pci_dev *dev)
|
|
{
|
|
struct hifn_softc *sc = pci_get_drvdata(dev);
|
|
unsigned long l_flags;
|
|
|
|
DPRINTF("%s()\n", __FUNCTION__);
|
|
|
|
KASSERT(sc != NULL, ("hifn_detach: null software carrier!"));
|
|
|
|
/* disable interrupts */
|
|
HIFN_LOCK(sc);
|
|
WRITE_REG_1(sc, HIFN_1_DMA_IER, 0);
|
|
HIFN_UNLOCK(sc);
|
|
|
|
/*XXX other resources */
|
|
del_timer_sync(&sc->sc_tickto);
|
|
|
|
/* Turn off DMA polling */
|
|
WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET |
|
|
HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE);
|
|
|
|
crypto_unregister_all(sc->sc_cid);
|
|
|
|
free_irq(sc->sc_irq, sc);
|
|
|
|
pci_free_consistent(sc->sc_pcidev, sizeof(*sc->sc_dma),
|
|
sc->sc_dma, sc->sc_dma_physaddr);
|
|
}
|
|
|
|
|
|
static int
|
|
hifn_init_pubrng(struct hifn_softc *sc)
|
|
{
|
|
int i;
|
|
|
|
DPRINTF("%s()\n", __FUNCTION__);
|
|
|
|
if ((sc->sc_flags & HIFN_IS_7811) == 0) {
|
|
/* Reset 7951 public key/rng engine */
|
|
WRITE_REG_1(sc, HIFN_1_PUB_RESET,
|
|
READ_REG_1(sc, HIFN_1_PUB_RESET) | HIFN_PUBRST_RESET);
|
|
|
|
for (i = 0; i < 100; i++) {
|
|
DELAY(1000);
|
|
if ((READ_REG_1(sc, HIFN_1_PUB_RESET) &
|
|
HIFN_PUBRST_RESET) == 0)
|
|
break;
|
|
}
|
|
|
|
if (i == 100) {
|
|
device_printf(sc->sc_dev, "public key init failed\n");
|
|
return (1);
|
|
}
|
|
}
|
|
|
|
/* Enable the rng, if available */
|
|
#ifdef CONFIG_OCF_RANDOMHARVEST
|
|
if (sc->sc_flags & HIFN_HAS_RNG) {
|
|
if (sc->sc_flags & HIFN_IS_7811) {
|
|
u_int32_t r;
|
|
r = READ_REG_1(sc, HIFN_1_7811_RNGENA);
|
|
if (r & HIFN_7811_RNGENA_ENA) {
|
|
r &= ~HIFN_7811_RNGENA_ENA;
|
|
WRITE_REG_1(sc, HIFN_1_7811_RNGENA, r);
|
|
}
|
|
WRITE_REG_1(sc, HIFN_1_7811_RNGCFG,
|
|
HIFN_7811_RNGCFG_DEFL);
|
|
r |= HIFN_7811_RNGENA_ENA;
|
|
WRITE_REG_1(sc, HIFN_1_7811_RNGENA, r);
|
|
} else
|
|
WRITE_REG_1(sc, HIFN_1_RNG_CONFIG,
|
|
READ_REG_1(sc, HIFN_1_RNG_CONFIG) |
|
|
HIFN_RNGCFG_ENA);
|
|
|
|
sc->sc_rngfirst = 1;
|
|
crypto_rregister(sc->sc_cid, hifn_read_random, sc);
|
|
}
|
|
#endif
|
|
|
|
/* Enable public key engine, if available */
|
|
if (sc->sc_flags & HIFN_HAS_PUBLIC) {
|
|
WRITE_REG_1(sc, HIFN_1_PUB_IEN, HIFN_PUBIEN_DONE);
|
|
sc->sc_dmaier |= HIFN_DMAIER_PUBDONE;
|
|
WRITE_REG_1(sc, HIFN_1_DMA_IER, sc->sc_dmaier);
|
|
#ifdef HIFN_VULCANDEV
|
|
sc->sc_pkdev = make_dev(&vulcanpk_cdevsw, 0,
|
|
UID_ROOT, GID_WHEEL, 0666,
|
|
"vulcanpk");
|
|
sc->sc_pkdev->si_drv1 = sc;
|
|
#endif
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
#ifdef CONFIG_OCF_RANDOMHARVEST
|
|
static int
|
|
hifn_read_random(void *arg, u_int32_t *buf, int len)
|
|
{
|
|
struct hifn_softc *sc = (struct hifn_softc *) arg;
|
|
u_int32_t sts;
|
|
int i, rc = 0;
|
|
|
|
if (len <= 0)
|
|
return rc;
|
|
|
|
if (sc->sc_flags & HIFN_IS_7811) {
|
|
/* ONLY VALID ON 7811!!!! */
|
|
for (i = 0; i < 5; i++) {
|
|
sts = READ_REG_1(sc, HIFN_1_7811_RNGSTS);
|
|
if (sts & HIFN_7811_RNGSTS_UFL) {
|
|
device_printf(sc->sc_dev,
|
|
"RNG underflow: disabling\n");
|
|
/* DAVIDM perhaps return -1 */
|
|
break;
|
|
}
|
|
if ((sts & HIFN_7811_RNGSTS_RDY) == 0)
|
|
break;
|
|
|
|
/*
|
|
* There are at least two words in the RNG FIFO
|
|
* at this point.
|
|
*/
|
|
if (rc < len)
|
|
buf[rc++] = READ_REG_1(sc, HIFN_1_7811_RNGDAT);
|
|
if (rc < len)
|
|
buf[rc++] = READ_REG_1(sc, HIFN_1_7811_RNGDAT);
|
|
}
|
|
} else
|
|
buf[rc++] = READ_REG_1(sc, HIFN_1_RNG_DATA);
|
|
|
|
/* NB: discard first data read */
|
|
if (sc->sc_rngfirst) {
|
|
sc->sc_rngfirst = 0;
|
|
rc = 0;
|
|
}
|
|
|
|
return(rc);
|
|
}
|
|
#endif /* CONFIG_OCF_RANDOMHARVEST */
|
|
|
|
static void
|
|
hifn_puc_wait(struct hifn_softc *sc)
|
|
{
|
|
int i;
|
|
int reg = HIFN_0_PUCTRL;
|
|
|
|
if (sc->sc_flags & HIFN_IS_7956) {
|
|
reg = HIFN_0_PUCTRL2;
|
|
}
|
|
|
|
for (i = 5000; i > 0; i--) {
|
|
DELAY(1);
|
|
if (!(READ_REG_0(sc, reg) & HIFN_PUCTRL_RESET))
|
|
break;
|
|
}
|
|
if (!i)
|
|
device_printf(sc->sc_dev, "proc unit did not reset(0x%x)\n",
|
|
READ_REG_0(sc, HIFN_0_PUCTRL));
|
|
}
|
|
|
|
/*
|
|
* Reset the processing unit.
|
|
*/
|
|
static void
|
|
hifn_reset_puc(struct hifn_softc *sc)
|
|
{
|
|
/* Reset processing unit */
|
|
int reg = HIFN_0_PUCTRL;
|
|
|
|
if (sc->sc_flags & HIFN_IS_7956) {
|
|
reg = HIFN_0_PUCTRL2;
|
|
}
|
|
WRITE_REG_0(sc, reg, HIFN_PUCTRL_DMAENA);
|
|
|
|
hifn_puc_wait(sc);
|
|
}
|
|
|
|
/*
|
|
* Set the Retry and TRDY registers; note that we set them to
|
|
* zero because the 7811 locks up when forced to retry (section
|
|
* 3.6 of "Specification Update SU-0014-04". Not clear if we
|
|
* should do this for all Hifn parts, but it doesn't seem to hurt.
|
|
*/
|
|
static void
|
|
hifn_set_retry(struct hifn_softc *sc)
|
|
{
|
|
DPRINTF("%s()\n", __FUNCTION__);
|
|
/* NB: RETRY only responds to 8-bit reads/writes */
|
|
pci_write_config_byte(sc->sc_pcidev, HIFN_RETRY_TIMEOUT, 0);
|
|
pci_write_config_byte(sc->sc_pcidev, HIFN_TRDY_TIMEOUT, 0);
|
|
/* piggy back the cache line setting here */
|
|
pci_write_config_byte(sc->sc_pcidev, PCI_CACHE_LINE_SIZE, hifn_cache_linesize);
|
|
}
|
|
|
|
/*
|
|
* Resets the board. Values in the regesters are left as is
|
|
* from the reset (i.e. initial values are assigned elsewhere).
|
|
*/
|
|
static void
|
|
hifn_reset_board(struct hifn_softc *sc, int full)
|
|
{
|
|
u_int32_t reg;
|
|
|
|
DPRINTF("%s()\n", __FUNCTION__);
|
|
/*
|
|
* Set polling in the DMA configuration register to zero. 0x7 avoids
|
|
* resetting the board and zeros out the other fields.
|
|
*/
|
|
WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET |
|
|
HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE);
|
|
|
|
/*
|
|
* Now that polling has been disabled, we have to wait 1 ms
|
|
* before resetting the board.
|
|
*/
|
|
DELAY(1000);
|
|
|
|
/* Reset the DMA unit */
|
|
if (full) {
|
|
WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MODE);
|
|
DELAY(1000);
|
|
} else {
|
|
WRITE_REG_1(sc, HIFN_1_DMA_CNFG,
|
|
HIFN_DMACNFG_MODE | HIFN_DMACNFG_MSTRESET);
|
|
hifn_reset_puc(sc);
|
|
}
|
|
|
|
KASSERT(sc->sc_dma != NULL, ("hifn_reset_board: null DMA tag!"));
|
|
bzero(sc->sc_dma, sizeof(*sc->sc_dma));
|
|
|
|
/* Bring dma unit out of reset */
|
|
WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET |
|
|
HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE);
|
|
|
|
hifn_puc_wait(sc);
|
|
hifn_set_retry(sc);
|
|
|
|
if (sc->sc_flags & HIFN_IS_7811) {
|
|
for (reg = 0; reg < 1000; reg++) {
|
|
if (READ_REG_1(sc, HIFN_1_7811_MIPSRST) &
|
|
HIFN_MIPSRST_CRAMINIT)
|
|
break;
|
|
DELAY(1000);
|
|
}
|
|
if (reg == 1000)
|
|
device_printf(sc->sc_dev, ": cram init timeout\n");
|
|
} else {
|
|
/* set up DMA configuration register #2 */
|
|
/* turn off all PK and BAR0 swaps */
|
|
WRITE_REG_1(sc, HIFN_1_DMA_CNFG2,
|
|
(3 << HIFN_DMACNFG2_INIT_WRITE_BURST_SHIFT)|
|
|
(3 << HIFN_DMACNFG2_INIT_READ_BURST_SHIFT)|
|
|
(2 << HIFN_DMACNFG2_TGT_WRITE_BURST_SHIFT)|
|
|
(2 << HIFN_DMACNFG2_TGT_READ_BURST_SHIFT));
|
|
}
|
|
}
|
|
|
|
static u_int32_t
|
|
hifn_next_signature(u_int32_t a, u_int cnt)
|
|
{
|
|
int i;
|
|
u_int32_t v;
|
|
|
|
for (i = 0; i < cnt; i++) {
|
|
|
|
/* get the parity */
|
|
v = a & 0x80080125;
|
|
v ^= v >> 16;
|
|
v ^= v >> 8;
|
|
v ^= v >> 4;
|
|
v ^= v >> 2;
|
|
v ^= v >> 1;
|
|
|
|
a = (v & 1) ^ (a << 1);
|
|
}
|
|
|
|
return a;
|
|
}
|
|
|
|
|
|
/*
|
|
* Checks to see if crypto is already enabled. If crypto isn't enable,
|
|
* "hifn_enable_crypto" is called to enable it. The check is important,
|
|
* as enabling crypto twice will lock the board.
|
|
*/
|
|
static int
|
|
hifn_enable_crypto(struct hifn_softc *sc)
|
|
{
|
|
u_int32_t dmacfg, ramcfg, encl, addr, i;
|
|
char offtbl[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00 };
|
|
|
|
DPRINTF("%s()\n", __FUNCTION__);
|
|
|
|
ramcfg = READ_REG_0(sc, HIFN_0_PUCNFG);
|
|
dmacfg = READ_REG_1(sc, HIFN_1_DMA_CNFG);
|
|
|
|
/*
|
|
* The RAM config register's encrypt level bit needs to be set before
|
|
* every read performed on the encryption level register.
|
|
*/
|
|
WRITE_REG_0(sc, HIFN_0_PUCNFG, ramcfg | HIFN_PUCNFG_CHIPID);
|
|
|
|
encl = READ_REG_0(sc, HIFN_0_PUSTAT) & HIFN_PUSTAT_CHIPENA;
|
|
|
|
/*
|
|
* Make sure we don't re-unlock. Two unlocks kills chip until the
|
|
* next reboot.
|
|
*/
|
|
if (encl == HIFN_PUSTAT_ENA_1 || encl == HIFN_PUSTAT_ENA_2) {
|
|
#ifdef HIFN_DEBUG
|
|
if (hifn_debug)
|
|
device_printf(sc->sc_dev,
|
|
"Strong crypto already enabled!\n");
|
|
#endif
|
|
goto report;
|
|
}
|
|
|
|
if (encl != 0 && encl != HIFN_PUSTAT_ENA_0) {
|
|
#ifdef HIFN_DEBUG
|
|
if (hifn_debug)
|
|
device_printf(sc->sc_dev,
|
|
"Unknown encryption level 0x%x\n", encl);
|
|
#endif
|
|
return 1;
|
|
}
|
|
|
|
WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_UNLOCK |
|
|
HIFN_DMACNFG_MSTRESET | HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE);
|
|
DELAY(1000);
|
|
addr = READ_REG_1(sc, HIFN_UNLOCK_SECRET1);
|
|
DELAY(1000);
|
|
WRITE_REG_1(sc, HIFN_UNLOCK_SECRET2, 0);
|
|
DELAY(1000);
|
|
|
|
for (i = 0; i <= 12; i++) {
|
|
addr = hifn_next_signature(addr, offtbl[i] + 0x101);
|
|
WRITE_REG_1(sc, HIFN_UNLOCK_SECRET2, addr);
|
|
|
|
DELAY(1000);
|
|
}
|
|
|
|
WRITE_REG_0(sc, HIFN_0_PUCNFG, ramcfg | HIFN_PUCNFG_CHIPID);
|
|
encl = READ_REG_0(sc, HIFN_0_PUSTAT) & HIFN_PUSTAT_CHIPENA;
|
|
|
|
#ifdef HIFN_DEBUG
|
|
if (hifn_debug) {
|
|
if (encl != HIFN_PUSTAT_ENA_1 && encl != HIFN_PUSTAT_ENA_2)
|
|
device_printf(sc->sc_dev, "Engine is permanently "
|
|
"locked until next system reset!\n");
|
|
else
|
|
device_printf(sc->sc_dev, "Engine enabled "
|
|
"successfully!\n");
|
|
}
|
|
#endif
|
|
|
|
report:
|
|
WRITE_REG_0(sc, HIFN_0_PUCNFG, ramcfg);
|
|
WRITE_REG_1(sc, HIFN_1_DMA_CNFG, dmacfg);
|
|
|
|
switch (encl) {
|
|
case HIFN_PUSTAT_ENA_1:
|
|
case HIFN_PUSTAT_ENA_2:
|
|
break;
|
|
case HIFN_PUSTAT_ENA_0:
|
|
default:
|
|
device_printf(sc->sc_dev, "disabled\n");
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Give initial values to the registers listed in the "Register Space"
|
|
* section of the HIFN Software Development reference manual.
|
|
*/
|
|
static void
|
|
hifn_init_pci_registers(struct hifn_softc *sc)
|
|
{
|
|
DPRINTF("%s()\n", __FUNCTION__);
|
|
|
|
/* write fixed values needed by the Initialization registers */
|
|
WRITE_REG_0(sc, HIFN_0_PUCTRL, HIFN_PUCTRL_DMAENA);
|
|
WRITE_REG_0(sc, HIFN_0_FIFOCNFG, HIFN_FIFOCNFG_THRESHOLD);
|
|
WRITE_REG_0(sc, HIFN_0_PUIER, HIFN_PUIER_DSTOVER);
|
|
|
|
/* write all 4 ring address registers */
|
|
WRITE_REG_1(sc, HIFN_1_DMA_CRAR, sc->sc_dma_physaddr +
|
|
offsetof(struct hifn_dma, cmdr[0]));
|
|
WRITE_REG_1(sc, HIFN_1_DMA_SRAR, sc->sc_dma_physaddr +
|
|
offsetof(struct hifn_dma, srcr[0]));
|
|
WRITE_REG_1(sc, HIFN_1_DMA_DRAR, sc->sc_dma_physaddr +
|
|
offsetof(struct hifn_dma, dstr[0]));
|
|
WRITE_REG_1(sc, HIFN_1_DMA_RRAR, sc->sc_dma_physaddr +
|
|
offsetof(struct hifn_dma, resr[0]));
|
|
|
|
DELAY(2000);
|
|
|
|
/* write status register */
|
|
WRITE_REG_1(sc, HIFN_1_DMA_CSR,
|
|
HIFN_DMACSR_D_CTRL_DIS | HIFN_DMACSR_R_CTRL_DIS |
|
|
HIFN_DMACSR_S_CTRL_DIS | HIFN_DMACSR_C_CTRL_DIS |
|
|
HIFN_DMACSR_D_ABORT | HIFN_DMACSR_D_DONE | HIFN_DMACSR_D_LAST |
|
|
HIFN_DMACSR_D_WAIT | HIFN_DMACSR_D_OVER |
|
|
HIFN_DMACSR_R_ABORT | HIFN_DMACSR_R_DONE | HIFN_DMACSR_R_LAST |
|
|
HIFN_DMACSR_R_WAIT | HIFN_DMACSR_R_OVER |
|
|
HIFN_DMACSR_S_ABORT | HIFN_DMACSR_S_DONE | HIFN_DMACSR_S_LAST |
|
|
HIFN_DMACSR_S_WAIT |
|
|
HIFN_DMACSR_C_ABORT | HIFN_DMACSR_C_DONE | HIFN_DMACSR_C_LAST |
|
|
HIFN_DMACSR_C_WAIT |
|
|
HIFN_DMACSR_ENGINE |
|
|
((sc->sc_flags & HIFN_HAS_PUBLIC) ?
|
|
HIFN_DMACSR_PUBDONE : 0) |
|
|
((sc->sc_flags & HIFN_IS_7811) ?
|
|
HIFN_DMACSR_ILLW | HIFN_DMACSR_ILLR : 0));
|
|
|
|
sc->sc_d_busy = sc->sc_r_busy = sc->sc_s_busy = sc->sc_c_busy = 0;
|
|
sc->sc_dmaier |= HIFN_DMAIER_R_DONE | HIFN_DMAIER_C_ABORT |
|
|
HIFN_DMAIER_D_OVER | HIFN_DMAIER_R_OVER |
|
|
HIFN_DMAIER_S_ABORT | HIFN_DMAIER_D_ABORT | HIFN_DMAIER_R_ABORT |
|
|
((sc->sc_flags & HIFN_IS_7811) ?
|
|
HIFN_DMAIER_ILLW | HIFN_DMAIER_ILLR : 0);
|
|
sc->sc_dmaier &= ~HIFN_DMAIER_C_WAIT;
|
|
WRITE_REG_1(sc, HIFN_1_DMA_IER, sc->sc_dmaier);
|
|
|
|
|
|
if (sc->sc_flags & HIFN_IS_7956) {
|
|
u_int32_t pll;
|
|
|
|
WRITE_REG_0(sc, HIFN_0_PUCNFG, HIFN_PUCNFG_COMPSING |
|
|
HIFN_PUCNFG_TCALLPHASES |
|
|
HIFN_PUCNFG_TCDRVTOTEM | HIFN_PUCNFG_BUS32);
|
|
|
|
/* turn off the clocks and insure bypass is set */
|
|
pll = READ_REG_1(sc, HIFN_1_PLL);
|
|
pll = (pll &~ (HIFN_PLL_PK_CLK_SEL | HIFN_PLL_PE_CLK_SEL))
|
|
| HIFN_PLL_BP | HIFN_PLL_MBSET;
|
|
WRITE_REG_1(sc, HIFN_1_PLL, pll);
|
|
DELAY(10*1000); /* 10ms */
|
|
|
|
/* change configuration */
|
|
pll = (pll &~ HIFN_PLL_CONFIG) | sc->sc_pllconfig;
|
|
WRITE_REG_1(sc, HIFN_1_PLL, pll);
|
|
DELAY(10*1000); /* 10ms */
|
|
|
|
/* disable bypass */
|
|
pll &= ~HIFN_PLL_BP;
|
|
WRITE_REG_1(sc, HIFN_1_PLL, pll);
|
|
/* enable clocks with new configuration */
|
|
pll |= HIFN_PLL_PK_CLK_SEL | HIFN_PLL_PE_CLK_SEL;
|
|
WRITE_REG_1(sc, HIFN_1_PLL, pll);
|
|
} else {
|
|
WRITE_REG_0(sc, HIFN_0_PUCNFG, HIFN_PUCNFG_COMPSING |
|
|
HIFN_PUCNFG_DRFR_128 | HIFN_PUCNFG_TCALLPHASES |
|
|
HIFN_PUCNFG_TCDRVTOTEM | HIFN_PUCNFG_BUS32 |
|
|
(sc->sc_drammodel ? HIFN_PUCNFG_DRAM : HIFN_PUCNFG_SRAM));
|
|
}
|
|
|
|
WRITE_REG_0(sc, HIFN_0_PUISR, HIFN_PUISR_DSTOVER);
|
|
WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET |
|
|
HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE | HIFN_DMACNFG_LAST |
|
|
((HIFN_POLL_FREQUENCY << 16 ) & HIFN_DMACNFG_POLLFREQ) |
|
|
((HIFN_POLL_SCALAR << 8) & HIFN_DMACNFG_POLLINVAL));
|
|
}
|
|
|
|
/*
|
|
* The maximum number of sessions supported by the card
|
|
* is dependent on the amount of context ram, which
|
|
* encryption algorithms are enabled, and how compression
|
|
* is configured. This should be configured before this
|
|
* routine is called.
|
|
*/
|
|
static void
|
|
hifn_sessions(struct hifn_softc *sc)
|
|
{
|
|
u_int32_t pucnfg;
|
|
int ctxsize;
|
|
|
|
DPRINTF("%s()\n", __FUNCTION__);
|
|
|
|
pucnfg = READ_REG_0(sc, HIFN_0_PUCNFG);
|
|
|
|
if (pucnfg & HIFN_PUCNFG_COMPSING) {
|
|
if (pucnfg & HIFN_PUCNFG_ENCCNFG)
|
|
ctxsize = 128;
|
|
else
|
|
ctxsize = 512;
|
|
/*
|
|
* 7955/7956 has internal context memory of 32K
|
|
*/
|
|
if (sc->sc_flags & HIFN_IS_7956)
|
|
sc->sc_maxses = 32768 / ctxsize;
|
|
else
|
|
sc->sc_maxses = 1 +
|
|
((sc->sc_ramsize - 32768) / ctxsize);
|
|
} else
|
|
sc->sc_maxses = sc->sc_ramsize / 16384;
|
|
|
|
if (sc->sc_maxses > 2048)
|
|
sc->sc_maxses = 2048;
|
|
}
|
|
|
|
/*
|
|
* Determine ram type (sram or dram). Board should be just out of a reset
|
|
* state when this is called.
|
|
*/
|
|
static int
|
|
hifn_ramtype(struct hifn_softc *sc)
|
|
{
|
|
u_int8_t data[8], dataexpect[8];
|
|
int i;
|
|
|
|
for (i = 0; i < sizeof(data); i++)
|
|
data[i] = dataexpect[i] = 0x55;
|
|
if (hifn_writeramaddr(sc, 0, data))
|
|
return (-1);
|
|
if (hifn_readramaddr(sc, 0, data))
|
|
return (-1);
|
|
if (bcmp(data, dataexpect, sizeof(data)) != 0) {
|
|
sc->sc_drammodel = 1;
|
|
return (0);
|
|
}
|
|
|
|
for (i = 0; i < sizeof(data); i++)
|
|
data[i] = dataexpect[i] = 0xaa;
|
|
if (hifn_writeramaddr(sc, 0, data))
|
|
return (-1);
|
|
if (hifn_readramaddr(sc, 0, data))
|
|
return (-1);
|
|
if (bcmp(data, dataexpect, sizeof(data)) != 0) {
|
|
sc->sc_drammodel = 1;
|
|
return (0);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
#define HIFN_SRAM_MAX (32 << 20)
|
|
#define HIFN_SRAM_STEP_SIZE 16384
|
|
#define HIFN_SRAM_GRANULARITY (HIFN_SRAM_MAX / HIFN_SRAM_STEP_SIZE)
|
|
|
|
static int
|
|
hifn_sramsize(struct hifn_softc *sc)
|
|
{
|
|
u_int32_t a;
|
|
u_int8_t data[8];
|
|
u_int8_t dataexpect[sizeof(data)];
|
|
int32_t i;
|
|
|
|
for (i = 0; i < sizeof(data); i++)
|
|
data[i] = dataexpect[i] = i ^ 0x5a;
|
|
|
|
for (i = HIFN_SRAM_GRANULARITY - 1; i >= 0; i--) {
|
|
a = i * HIFN_SRAM_STEP_SIZE;
|
|
bcopy(&i, data, sizeof(i));
|
|
hifn_writeramaddr(sc, a, data);
|
|
}
|
|
|
|
for (i = 0; i < HIFN_SRAM_GRANULARITY; i++) {
|
|
a = i * HIFN_SRAM_STEP_SIZE;
|
|
bcopy(&i, dataexpect, sizeof(i));
|
|
if (hifn_readramaddr(sc, a, data) < 0)
|
|
return (0);
|
|
if (bcmp(data, dataexpect, sizeof(data)) != 0)
|
|
return (0);
|
|
sc->sc_ramsize = a + HIFN_SRAM_STEP_SIZE;
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* XXX For dram boards, one should really try all of the
|
|
* HIFN_PUCNFG_DSZ_*'s. This just assumes that PUCNFG
|
|
* is already set up correctly.
|
|
*/
|
|
static int
|
|
hifn_dramsize(struct hifn_softc *sc)
|
|
{
|
|
u_int32_t cnfg;
|
|
|
|
if (sc->sc_flags & HIFN_IS_7956) {
|
|
/*
|
|
* 7955/7956 have a fixed internal ram of only 32K.
|
|
*/
|
|
sc->sc_ramsize = 32768;
|
|
} else {
|
|
cnfg = READ_REG_0(sc, HIFN_0_PUCNFG) &
|
|
HIFN_PUCNFG_DRAMMASK;
|
|
sc->sc_ramsize = 1 << ((cnfg >> 13) + 18);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
hifn_alloc_slot(struct hifn_softc *sc, int *cmdp, int *srcp, int *dstp, int *resp)
|
|
{
|
|
struct hifn_dma *dma = sc->sc_dma;
|
|
|
|
DPRINTF("%s()\n", __FUNCTION__);
|
|
|
|
if (dma->cmdi == HIFN_D_CMD_RSIZE) {
|
|
dma->cmdi = 0;
|
|
dma->cmdr[HIFN_D_CMD_RSIZE].l = htole32(HIFN_D_JUMP|HIFN_D_MASKDONEIRQ);
|
|
wmb();
|
|
dma->cmdr[HIFN_D_CMD_RSIZE].l |= htole32(HIFN_D_VALID);
|
|
HIFN_CMDR_SYNC(sc, HIFN_D_CMD_RSIZE,
|
|
BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
|
|
}
|
|
*cmdp = dma->cmdi++;
|
|
dma->cmdk = dma->cmdi;
|
|
|
|
if (dma->srci == HIFN_D_SRC_RSIZE) {
|
|
dma->srci = 0;
|
|
dma->srcr[HIFN_D_SRC_RSIZE].l = htole32(HIFN_D_JUMP|HIFN_D_MASKDONEIRQ);
|
|
wmb();
|
|
dma->srcr[HIFN_D_SRC_RSIZE].l |= htole32(HIFN_D_VALID);
|
|
HIFN_SRCR_SYNC(sc, HIFN_D_SRC_RSIZE,
|
|
BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
|
|
}
|
|
*srcp = dma->srci++;
|
|
dma->srck = dma->srci;
|
|
|
|
if (dma->dsti == HIFN_D_DST_RSIZE) {
|
|
dma->dsti = 0;
|
|
dma->dstr[HIFN_D_DST_RSIZE].l = htole32(HIFN_D_JUMP|HIFN_D_MASKDONEIRQ);
|
|
wmb();
|
|
dma->dstr[HIFN_D_DST_RSIZE].l |= htole32(HIFN_D_VALID);
|
|
HIFN_DSTR_SYNC(sc, HIFN_D_DST_RSIZE,
|
|
BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
|
|
}
|
|
*dstp = dma->dsti++;
|
|
dma->dstk = dma->dsti;
|
|
|
|
if (dma->resi == HIFN_D_RES_RSIZE) {
|
|
dma->resi = 0;
|
|
dma->resr[HIFN_D_RES_RSIZE].l = htole32(HIFN_D_JUMP|HIFN_D_MASKDONEIRQ);
|
|
wmb();
|
|
dma->resr[HIFN_D_RES_RSIZE].l |= htole32(HIFN_D_VALID);
|
|
HIFN_RESR_SYNC(sc, HIFN_D_RES_RSIZE,
|
|
BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
|
|
}
|
|
*resp = dma->resi++;
|
|
dma->resk = dma->resi;
|
|
}
|
|
|
|
static int
|
|
hifn_writeramaddr(struct hifn_softc *sc, int addr, u_int8_t *data)
|
|
{
|
|
struct hifn_dma *dma = sc->sc_dma;
|
|
hifn_base_command_t wc;
|
|
const u_int32_t masks = HIFN_D_VALID | HIFN_D_LAST | HIFN_D_MASKDONEIRQ;
|
|
int r, cmdi, resi, srci, dsti;
|
|
|
|
DPRINTF("%s()\n", __FUNCTION__);
|
|
|
|
wc.masks = htole16(3 << 13);
|
|
wc.session_num = htole16(addr >> 14);
|
|
wc.total_source_count = htole16(8);
|
|
wc.total_dest_count = htole16(addr & 0x3fff);
|
|
|
|
hifn_alloc_slot(sc, &cmdi, &srci, &dsti, &resi);
|
|
|
|
WRITE_REG_1(sc, HIFN_1_DMA_CSR,
|
|
HIFN_DMACSR_C_CTRL_ENA | HIFN_DMACSR_S_CTRL_ENA |
|
|
HIFN_DMACSR_D_CTRL_ENA | HIFN_DMACSR_R_CTRL_ENA);
|
|
|
|
/* build write command */
|
|
bzero(dma->command_bufs[cmdi], HIFN_MAX_COMMAND);
|
|
*(hifn_base_command_t *)dma->command_bufs[cmdi] = wc;
|
|
bcopy(data, &dma->test_src, sizeof(dma->test_src));
|
|
|
|
dma->srcr[srci].p = htole32(sc->sc_dma_physaddr
|
|
+ offsetof(struct hifn_dma, test_src));
|
|
dma->dstr[dsti].p = htole32(sc->sc_dma_physaddr
|
|
+ offsetof(struct hifn_dma, test_dst));
|
|
|
|
dma->cmdr[cmdi].l = htole32(16 | masks);
|
|
dma->srcr[srci].l = htole32(8 | masks);
|
|
dma->dstr[dsti].l = htole32(4 | masks);
|
|
dma->resr[resi].l = htole32(4 | masks);
|
|
|
|
for (r = 10000; r >= 0; r--) {
|
|
DELAY(10);
|
|
if ((dma->resr[resi].l & htole32(HIFN_D_VALID)) == 0)
|
|
break;
|
|
}
|
|
if (r == 0) {
|
|
device_printf(sc->sc_dev, "writeramaddr -- "
|
|
"result[%d](addr %d) still valid\n", resi, addr);
|
|
r = -1;
|
|
return (-1);
|
|
} else
|
|
r = 0;
|
|
|
|
WRITE_REG_1(sc, HIFN_1_DMA_CSR,
|
|
HIFN_DMACSR_C_CTRL_DIS | HIFN_DMACSR_S_CTRL_DIS |
|
|
HIFN_DMACSR_D_CTRL_DIS | HIFN_DMACSR_R_CTRL_DIS);
|
|
|
|
return (r);
|
|
}
|
|
|
|
static int
|
|
hifn_readramaddr(struct hifn_softc *sc, int addr, u_int8_t *data)
|
|
{
|
|
struct hifn_dma *dma = sc->sc_dma;
|
|
hifn_base_command_t rc;
|
|
const u_int32_t masks = HIFN_D_VALID | HIFN_D_LAST | HIFN_D_MASKDONEIRQ;
|
|
int r, cmdi, srci, dsti, resi;
|
|
|
|
DPRINTF("%s()\n", __FUNCTION__);
|
|
|
|
rc.masks = htole16(2 << 13);
|
|
rc.session_num = htole16(addr >> 14);
|
|
rc.total_source_count = htole16(addr & 0x3fff);
|
|
rc.total_dest_count = htole16(8);
|
|
|
|
hifn_alloc_slot(sc, &cmdi, &srci, &dsti, &resi);
|
|
|
|
WRITE_REG_1(sc, HIFN_1_DMA_CSR,
|
|
HIFN_DMACSR_C_CTRL_ENA | HIFN_DMACSR_S_CTRL_ENA |
|
|
HIFN_DMACSR_D_CTRL_ENA | HIFN_DMACSR_R_CTRL_ENA);
|
|
|
|
bzero(dma->command_bufs[cmdi], HIFN_MAX_COMMAND);
|
|
*(hifn_base_command_t *)dma->command_bufs[cmdi] = rc;
|
|
|
|
dma->srcr[srci].p = htole32(sc->sc_dma_physaddr +
|
|
offsetof(struct hifn_dma, test_src));
|
|
dma->test_src = 0;
|
|
dma->dstr[dsti].p = htole32(sc->sc_dma_physaddr +
|
|
offsetof(struct hifn_dma, test_dst));
|
|
dma->test_dst = 0;
|
|
dma->cmdr[cmdi].l = htole32(8 | masks);
|
|
dma->srcr[srci].l = htole32(8 | masks);
|
|
dma->dstr[dsti].l = htole32(8 | masks);
|
|
dma->resr[resi].l = htole32(HIFN_MAX_RESULT | masks);
|
|
|
|
for (r = 10000; r >= 0; r--) {
|
|
DELAY(10);
|
|
if ((dma->resr[resi].l & htole32(HIFN_D_VALID)) == 0)
|
|
break;
|
|
}
|
|
if (r == 0) {
|
|
device_printf(sc->sc_dev, "readramaddr -- "
|
|
"result[%d](addr %d) still valid\n", resi, addr);
|
|
r = -1;
|
|
} else {
|
|
r = 0;
|
|
bcopy(&dma->test_dst, data, sizeof(dma->test_dst));
|
|
}
|
|
|
|
WRITE_REG_1(sc, HIFN_1_DMA_CSR,
|
|
HIFN_DMACSR_C_CTRL_DIS | HIFN_DMACSR_S_CTRL_DIS |
|
|
HIFN_DMACSR_D_CTRL_DIS | HIFN_DMACSR_R_CTRL_DIS);
|
|
|
|
return (r);
|
|
}
|
|
|
|
/*
|
|
* Initialize the descriptor rings.
|
|
*/
|
|
static void
|
|
hifn_init_dma(struct hifn_softc *sc)
|
|
{
|
|
struct hifn_dma *dma = sc->sc_dma;
|
|
int i;
|
|
|
|
DPRINTF("%s()\n", __FUNCTION__);
|
|
|
|
hifn_set_retry(sc);
|
|
|
|
/* initialize static pointer values */
|
|
for (i = 0; i < HIFN_D_CMD_RSIZE; i++)
|
|
dma->cmdr[i].p = htole32(sc->sc_dma_physaddr +
|
|
offsetof(struct hifn_dma, command_bufs[i][0]));
|
|
for (i = 0; i < HIFN_D_RES_RSIZE; i++)
|
|
dma->resr[i].p = htole32(sc->sc_dma_physaddr +
|
|
offsetof(struct hifn_dma, result_bufs[i][0]));
|
|
|
|
dma->cmdr[HIFN_D_CMD_RSIZE].p =
|
|
htole32(sc->sc_dma_physaddr + offsetof(struct hifn_dma, cmdr[0]));
|
|
dma->srcr[HIFN_D_SRC_RSIZE].p =
|
|
htole32(sc->sc_dma_physaddr + offsetof(struct hifn_dma, srcr[0]));
|
|
dma->dstr[HIFN_D_DST_RSIZE].p =
|
|
htole32(sc->sc_dma_physaddr + offsetof(struct hifn_dma, dstr[0]));
|
|
dma->resr[HIFN_D_RES_RSIZE].p =
|
|
htole32(sc->sc_dma_physaddr + offsetof(struct hifn_dma, resr[0]));
|
|
|
|
dma->cmdu = dma->srcu = dma->dstu = dma->resu = 0;
|
|
dma->cmdi = dma->srci = dma->dsti = dma->resi = 0;
|
|
dma->cmdk = dma->srck = dma->dstk = dma->resk = 0;
|
|
}
|
|
|
|
/*
|
|
* Writes out the raw command buffer space. Returns the
|
|
* command buffer size.
|
|
*/
|
|
static u_int
|
|
hifn_write_command(struct hifn_command *cmd, u_int8_t *buf)
|
|
{
|
|
struct hifn_softc *sc = NULL;
|
|
u_int8_t *buf_pos;
|
|
hifn_base_command_t *base_cmd;
|
|
hifn_mac_command_t *mac_cmd;
|
|
hifn_crypt_command_t *cry_cmd;
|
|
int using_mac, using_crypt, len, ivlen;
|
|
u_int32_t dlen, slen;
|
|
|
|
DPRINTF("%s()\n", __FUNCTION__);
|
|
|
|
buf_pos = buf;
|
|
using_mac = cmd->base_masks & HIFN_BASE_CMD_MAC;
|
|
using_crypt = cmd->base_masks & HIFN_BASE_CMD_CRYPT;
|
|
|
|
base_cmd = (hifn_base_command_t *)buf_pos;
|
|
base_cmd->masks = htole16(cmd->base_masks);
|
|
slen = cmd->src_mapsize;
|
|
if (cmd->sloplen)
|
|
dlen = cmd->dst_mapsize - cmd->sloplen + sizeof(u_int32_t);
|
|
else
|
|
dlen = cmd->dst_mapsize;
|
|
base_cmd->total_source_count = htole16(slen & HIFN_BASE_CMD_LENMASK_LO);
|
|
base_cmd->total_dest_count = htole16(dlen & HIFN_BASE_CMD_LENMASK_LO);
|
|
dlen >>= 16;
|
|
slen >>= 16;
|
|
base_cmd->session_num = htole16(
|
|
((slen << HIFN_BASE_CMD_SRCLEN_S) & HIFN_BASE_CMD_SRCLEN_M) |
|
|
((dlen << HIFN_BASE_CMD_DSTLEN_S) & HIFN_BASE_CMD_DSTLEN_M));
|
|
buf_pos += sizeof(hifn_base_command_t);
|
|
|
|
if (using_mac) {
|
|
mac_cmd = (hifn_mac_command_t *)buf_pos;
|
|
dlen = cmd->maccrd->crd_len;
|
|
mac_cmd->source_count = htole16(dlen & 0xffff);
|
|
dlen >>= 16;
|
|
mac_cmd->masks = htole16(cmd->mac_masks |
|
|
((dlen << HIFN_MAC_CMD_SRCLEN_S) & HIFN_MAC_CMD_SRCLEN_M));
|
|
mac_cmd->header_skip = htole16(cmd->maccrd->crd_skip);
|
|
mac_cmd->reserved = 0;
|
|
buf_pos += sizeof(hifn_mac_command_t);
|
|
}
|
|
|
|
if (using_crypt) {
|
|
cry_cmd = (hifn_crypt_command_t *)buf_pos;
|
|
dlen = cmd->enccrd->crd_len;
|
|
cry_cmd->source_count = htole16(dlen & 0xffff);
|
|
dlen >>= 16;
|
|
cry_cmd->masks = htole16(cmd->cry_masks |
|
|
((dlen << HIFN_CRYPT_CMD_SRCLEN_S) & HIFN_CRYPT_CMD_SRCLEN_M));
|
|
cry_cmd->header_skip = htole16(cmd->enccrd->crd_skip);
|
|
cry_cmd->reserved = 0;
|
|
buf_pos += sizeof(hifn_crypt_command_t);
|
|
}
|
|
|
|
if (using_mac && cmd->mac_masks & HIFN_MAC_CMD_NEW_KEY) {
|
|
bcopy(cmd->mac, buf_pos, HIFN_MAC_KEY_LENGTH);
|
|
buf_pos += HIFN_MAC_KEY_LENGTH;
|
|
}
|
|
|
|
if (using_crypt && cmd->cry_masks & HIFN_CRYPT_CMD_NEW_KEY) {
|
|
switch (cmd->cry_masks & HIFN_CRYPT_CMD_ALG_MASK) {
|
|
case HIFN_CRYPT_CMD_ALG_3DES:
|
|
bcopy(cmd->ck, buf_pos, HIFN_3DES_KEY_LENGTH);
|
|
buf_pos += HIFN_3DES_KEY_LENGTH;
|
|
break;
|
|
case HIFN_CRYPT_CMD_ALG_DES:
|
|
bcopy(cmd->ck, buf_pos, HIFN_DES_KEY_LENGTH);
|
|
buf_pos += HIFN_DES_KEY_LENGTH;
|
|
break;
|
|
case HIFN_CRYPT_CMD_ALG_RC4:
|
|
len = 256;
|
|
do {
|
|
int clen;
|
|
|
|
clen = MIN(cmd->cklen, len);
|
|
bcopy(cmd->ck, buf_pos, clen);
|
|
len -= clen;
|
|
buf_pos += clen;
|
|
} while (len > 0);
|
|
bzero(buf_pos, 4);
|
|
buf_pos += 4;
|
|
break;
|
|
case HIFN_CRYPT_CMD_ALG_AES:
|
|
/*
|
|
* AES keys are variable 128, 192 and
|
|
* 256 bits (16, 24 and 32 bytes).
|
|
*/
|
|
bcopy(cmd->ck, buf_pos, cmd->cklen);
|
|
buf_pos += cmd->cklen;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (using_crypt && cmd->cry_masks & HIFN_CRYPT_CMD_NEW_IV) {
|
|
switch (cmd->cry_masks & HIFN_CRYPT_CMD_ALG_MASK) {
|
|
case HIFN_CRYPT_CMD_ALG_AES:
|
|
ivlen = HIFN_AES_IV_LENGTH;
|
|
break;
|
|
default:
|
|
ivlen = HIFN_IV_LENGTH;
|
|
break;
|
|
}
|
|
bcopy(cmd->iv, buf_pos, ivlen);
|
|
buf_pos += ivlen;
|
|
}
|
|
|
|
if ((cmd->base_masks & (HIFN_BASE_CMD_MAC|HIFN_BASE_CMD_CRYPT)) == 0) {
|
|
bzero(buf_pos, 8);
|
|
buf_pos += 8;
|
|
}
|
|
|
|
return (buf_pos - buf);
|
|
}
|
|
|
|
static int
|
|
hifn_dmamap_aligned(struct hifn_operand *op)
|
|
{
|
|
struct hifn_softc *sc = NULL;
|
|
int i;
|
|
|
|
DPRINTF("%s()\n", __FUNCTION__);
|
|
|
|
for (i = 0; i < op->nsegs; i++) {
|
|
if (op->segs[i].ds_addr & 3)
|
|
return (0);
|
|
if ((i != (op->nsegs - 1)) && (op->segs[i].ds_len & 3))
|
|
return (0);
|
|
}
|
|
return (1);
|
|
}
|
|
|
|
static __inline int
|
|
hifn_dmamap_dstwrap(struct hifn_softc *sc, int idx)
|
|
{
|
|
struct hifn_dma *dma = sc->sc_dma;
|
|
|
|
if (++idx == HIFN_D_DST_RSIZE) {
|
|
dma->dstr[idx].l = htole32(HIFN_D_VALID | HIFN_D_JUMP |
|
|
HIFN_D_MASKDONEIRQ);
|
|
HIFN_DSTR_SYNC(sc, idx,
|
|
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
|
idx = 0;
|
|
}
|
|
return (idx);
|
|
}
|
|
|
|
static int
|
|
hifn_dmamap_load_dst(struct hifn_softc *sc, struct hifn_command *cmd)
|
|
{
|
|
struct hifn_dma *dma = sc->sc_dma;
|
|
struct hifn_operand *dst = &cmd->dst;
|
|
u_int32_t p, l;
|
|
int idx, used = 0, i;
|
|
|
|
DPRINTF("%s()\n", __FUNCTION__);
|
|
|
|
idx = dma->dsti;
|
|
for (i = 0; i < dst->nsegs - 1; i++) {
|
|
dma->dstr[idx].p = htole32(dst->segs[i].ds_addr);
|
|
dma->dstr[idx].l = htole32(HIFN_D_MASKDONEIRQ | dst->segs[i].ds_len);
|
|
wmb();
|
|
dma->dstr[idx].l |= htole32(HIFN_D_VALID);
|
|
HIFN_DSTR_SYNC(sc, idx,
|
|
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
|
used++;
|
|
|
|
idx = hifn_dmamap_dstwrap(sc, idx);
|
|
}
|
|
|
|
if (cmd->sloplen == 0) {
|
|
p = dst->segs[i].ds_addr;
|
|
l = HIFN_D_MASKDONEIRQ | HIFN_D_LAST |
|
|
dst->segs[i].ds_len;
|
|
} else {
|
|
p = sc->sc_dma_physaddr +
|
|
offsetof(struct hifn_dma, slop[cmd->slopidx]);
|
|
l = HIFN_D_MASKDONEIRQ | HIFN_D_LAST |
|
|
sizeof(u_int32_t);
|
|
|
|
if ((dst->segs[i].ds_len - cmd->sloplen) != 0) {
|
|
dma->dstr[idx].p = htole32(dst->segs[i].ds_addr);
|
|
dma->dstr[idx].l = htole32(HIFN_D_MASKDONEIRQ |
|
|
(dst->segs[i].ds_len - cmd->sloplen));
|
|
wmb();
|
|
dma->dstr[idx].l |= htole32(HIFN_D_VALID);
|
|
HIFN_DSTR_SYNC(sc, idx,
|
|
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
|
used++;
|
|
|
|
idx = hifn_dmamap_dstwrap(sc, idx);
|
|
}
|
|
}
|
|
dma->dstr[idx].p = htole32(p);
|
|
dma->dstr[idx].l = htole32(l);
|
|
wmb();
|
|
dma->dstr[idx].l |= htole32(HIFN_D_VALID);
|
|
HIFN_DSTR_SYNC(sc, idx, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
|
used++;
|
|
|
|
idx = hifn_dmamap_dstwrap(sc, idx);
|
|
|
|
dma->dsti = idx;
|
|
dma->dstu += used;
|
|
return (idx);
|
|
}
|
|
|
|
static __inline int
|
|
hifn_dmamap_srcwrap(struct hifn_softc *sc, int idx)
|
|
{
|
|
struct hifn_dma *dma = sc->sc_dma;
|
|
|
|
if (++idx == HIFN_D_SRC_RSIZE) {
|
|
dma->srcr[idx].l = htole32(HIFN_D_VALID |
|
|
HIFN_D_JUMP | HIFN_D_MASKDONEIRQ);
|
|
HIFN_SRCR_SYNC(sc, HIFN_D_SRC_RSIZE,
|
|
BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
|
|
idx = 0;
|
|
}
|
|
return (idx);
|
|
}
|
|
|
|
static int
|
|
hifn_dmamap_load_src(struct hifn_softc *sc, struct hifn_command *cmd)
|
|
{
|
|
struct hifn_dma *dma = sc->sc_dma;
|
|
struct hifn_operand *src = &cmd->src;
|
|
int idx, i;
|
|
u_int32_t last = 0;
|
|
|
|
DPRINTF("%s()\n", __FUNCTION__);
|
|
|
|
idx = dma->srci;
|
|
for (i = 0; i < src->nsegs; i++) {
|
|
if (i == src->nsegs - 1)
|
|
last = HIFN_D_LAST;
|
|
|
|
dma->srcr[idx].p = htole32(src->segs[i].ds_addr);
|
|
dma->srcr[idx].l = htole32(src->segs[i].ds_len |
|
|
HIFN_D_MASKDONEIRQ | last);
|
|
wmb();
|
|
dma->srcr[idx].l |= htole32(HIFN_D_VALID);
|
|
HIFN_SRCR_SYNC(sc, idx,
|
|
BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
|
|
|
|
idx = hifn_dmamap_srcwrap(sc, idx);
|
|
}
|
|
dma->srci = idx;
|
|
dma->srcu += src->nsegs;
|
|
return (idx);
|
|
}
|
|
|
|
|
|
static int
|
|
hifn_crypto(
|
|
struct hifn_softc *sc,
|
|
struct hifn_command *cmd,
|
|
struct cryptop *crp,
|
|
int hint)
|
|
{
|
|
struct hifn_dma *dma = sc->sc_dma;
|
|
u_int32_t cmdlen, csr;
|
|
int cmdi, resi, err = 0;
|
|
unsigned long l_flags;
|
|
|
|
DPRINTF("%s()\n", __FUNCTION__);
|
|
|
|
/*
|
|
* need 1 cmd, and 1 res
|
|
*
|
|
* NB: check this first since it's easy.
|
|
*/
|
|
HIFN_LOCK(sc);
|
|
if ((dma->cmdu + 1) > HIFN_D_CMD_RSIZE ||
|
|
(dma->resu + 1) > HIFN_D_RES_RSIZE) {
|
|
#ifdef HIFN_DEBUG
|
|
if (hifn_debug) {
|
|
device_printf(sc->sc_dev,
|
|
"cmd/result exhaustion, cmdu %u resu %u\n",
|
|
dma->cmdu, dma->resu);
|
|
}
|
|
#endif
|
|
hifnstats.hst_nomem_cr++;
|
|
sc->sc_needwakeup |= CRYPTO_SYMQ;
|
|
HIFN_UNLOCK(sc);
|
|
return (ERESTART);
|
|
}
|
|
|
|
if (crp->crp_flags & CRYPTO_F_SKBUF) {
|
|
if (pci_map_skb(sc, &cmd->src, cmd->src_skb)) {
|
|
hifnstats.hst_nomem_load++;
|
|
err = ENOMEM;
|
|
goto err_srcmap1;
|
|
}
|
|
} else if (crp->crp_flags & CRYPTO_F_IOV) {
|
|
if (pci_map_uio(sc, &cmd->src, cmd->src_io)) {
|
|
hifnstats.hst_nomem_load++;
|
|
err = ENOMEM;
|
|
goto err_srcmap1;
|
|
}
|
|
} else {
|
|
if (pci_map_buf(sc, &cmd->src, cmd->src_buf, crp->crp_ilen)) {
|
|
hifnstats.hst_nomem_load++;
|
|
err = ENOMEM;
|
|
goto err_srcmap1;
|
|
}
|
|
}
|
|
|
|
if (hifn_dmamap_aligned(&cmd->src)) {
|
|
cmd->sloplen = cmd->src_mapsize & 3;
|
|
cmd->dst = cmd->src;
|
|
} else {
|
|
if (crp->crp_flags & CRYPTO_F_IOV) {
|
|
DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
|
|
err = EINVAL;
|
|
goto err_srcmap;
|
|
} else if (crp->crp_flags & CRYPTO_F_SKBUF) {
|
|
#ifdef NOTYET
|
|
int totlen, len;
|
|
struct mbuf *m, *m0, *mlast;
|
|
|
|
KASSERT(cmd->dst_m == cmd->src_m,
|
|
("hifn_crypto: dst_m initialized improperly"));
|
|
hifnstats.hst_unaligned++;
|
|
/*
|
|
* Source is not aligned on a longword boundary.
|
|
* Copy the data to insure alignment. If we fail
|
|
* to allocate mbufs or clusters while doing this
|
|
* we return ERESTART so the operation is requeued
|
|
* at the crypto later, but only if there are
|
|
* ops already posted to the hardware; otherwise we
|
|
* have no guarantee that we'll be re-entered.
|
|
*/
|
|
totlen = cmd->src_mapsize;
|
|
if (cmd->src_m->m_flags & M_PKTHDR) {
|
|
len = MHLEN;
|
|
MGETHDR(m0, M_DONTWAIT, MT_DATA);
|
|
if (m0 && !m_dup_pkthdr(m0, cmd->src_m, M_DONTWAIT)) {
|
|
m_free(m0);
|
|
m0 = NULL;
|
|
}
|
|
} else {
|
|
len = MLEN;
|
|
MGET(m0, M_DONTWAIT, MT_DATA);
|
|
}
|
|
if (m0 == NULL) {
|
|
hifnstats.hst_nomem_mbuf++;
|
|
err = dma->cmdu ? ERESTART : ENOMEM;
|
|
goto err_srcmap;
|
|
}
|
|
if (totlen >= MINCLSIZE) {
|
|
MCLGET(m0, M_DONTWAIT);
|
|
if ((m0->m_flags & M_EXT) == 0) {
|
|
hifnstats.hst_nomem_mcl++;
|
|
err = dma->cmdu ? ERESTART : ENOMEM;
|
|
m_freem(m0);
|
|
goto err_srcmap;
|
|
}
|
|
len = MCLBYTES;
|
|
}
|
|
totlen -= len;
|
|
m0->m_pkthdr.len = m0->m_len = len;
|
|
mlast = m0;
|
|
|
|
while (totlen > 0) {
|
|
MGET(m, M_DONTWAIT, MT_DATA);
|
|
if (m == NULL) {
|
|
hifnstats.hst_nomem_mbuf++;
|
|
err = dma->cmdu ? ERESTART : ENOMEM;
|
|
m_freem(m0);
|
|
goto err_srcmap;
|
|
}
|
|
len = MLEN;
|
|
if (totlen >= MINCLSIZE) {
|
|
MCLGET(m, M_DONTWAIT);
|
|
if ((m->m_flags & M_EXT) == 0) {
|
|
hifnstats.hst_nomem_mcl++;
|
|
err = dma->cmdu ? ERESTART : ENOMEM;
|
|
mlast->m_next = m;
|
|
m_freem(m0);
|
|
goto err_srcmap;
|
|
}
|
|
len = MCLBYTES;
|
|
}
|
|
|
|
m->m_len = len;
|
|
m0->m_pkthdr.len += len;
|
|
totlen -= len;
|
|
|
|
mlast->m_next = m;
|
|
mlast = m;
|
|
}
|
|
cmd->dst_m = m0;
|
|
#else
|
|
device_printf(sc->sc_dev,
|
|
"%s,%d: CRYPTO_F_SKBUF unaligned not implemented\n",
|
|
__FILE__, __LINE__);
|
|
err = EINVAL;
|
|
goto err_srcmap;
|
|
#endif
|
|
} else {
|
|
device_printf(sc->sc_dev,
|
|
"%s,%d: unaligned contig buffers not implemented\n",
|
|
__FILE__, __LINE__);
|
|
err = EINVAL;
|
|
goto err_srcmap;
|
|
}
|
|
}
|
|
|
|
if (cmd->dst_map == NULL) {
|
|
if (crp->crp_flags & CRYPTO_F_SKBUF) {
|
|
if (pci_map_skb(sc, &cmd->dst, cmd->dst_skb)) {
|
|
hifnstats.hst_nomem_map++;
|
|
err = ENOMEM;
|
|
goto err_dstmap1;
|
|
}
|
|
} else if (crp->crp_flags & CRYPTO_F_IOV) {
|
|
if (pci_map_uio(sc, &cmd->dst, cmd->dst_io)) {
|
|
hifnstats.hst_nomem_load++;
|
|
err = ENOMEM;
|
|
goto err_dstmap1;
|
|
}
|
|
} else {
|
|
if (pci_map_buf(sc, &cmd->dst, cmd->dst_buf, crp->crp_ilen)) {
|
|
hifnstats.hst_nomem_load++;
|
|
err = ENOMEM;
|
|
goto err_dstmap1;
|
|
}
|
|
}
|
|
}
|
|
|
|
#ifdef HIFN_DEBUG
|
|
if (hifn_debug) {
|
|
device_printf(sc->sc_dev,
|
|
"Entering cmd: stat %8x ien %8x u %d/%d/%d/%d n %d/%d\n",
|
|
READ_REG_1(sc, HIFN_1_DMA_CSR),
|
|
READ_REG_1(sc, HIFN_1_DMA_IER),
|
|
dma->cmdu, dma->srcu, dma->dstu, dma->resu,
|
|
cmd->src_nsegs, cmd->dst_nsegs);
|
|
}
|
|
#endif
|
|
|
|
#if 0
|
|
if (cmd->src_map == cmd->dst_map) {
|
|
bus_dmamap_sync(sc->sc_dmat, cmd->src_map,
|
|
BUS_DMASYNC_PREWRITE|BUS_DMASYNC_PREREAD);
|
|
} else {
|
|
bus_dmamap_sync(sc->sc_dmat, cmd->src_map,
|
|
BUS_DMASYNC_PREWRITE);
|
|
bus_dmamap_sync(sc->sc_dmat, cmd->dst_map,
|
|
BUS_DMASYNC_PREREAD);
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* need N src, and N dst
|
|
*/
|
|
if ((dma->srcu + cmd->src_nsegs) > HIFN_D_SRC_RSIZE ||
|
|
(dma->dstu + cmd->dst_nsegs + 1) > HIFN_D_DST_RSIZE) {
|
|
#ifdef HIFN_DEBUG
|
|
if (hifn_debug) {
|
|
device_printf(sc->sc_dev,
|
|
"src/dst exhaustion, srcu %u+%u dstu %u+%u\n",
|
|
dma->srcu, cmd->src_nsegs,
|
|
dma->dstu, cmd->dst_nsegs);
|
|
}
|
|
#endif
|
|
hifnstats.hst_nomem_sd++;
|
|
err = ERESTART;
|
|
goto err_dstmap;
|
|
}
|
|
|
|
if (dma->cmdi == HIFN_D_CMD_RSIZE) {
|
|
dma->cmdi = 0;
|
|
dma->cmdr[HIFN_D_CMD_RSIZE].l = htole32(HIFN_D_JUMP|HIFN_D_MASKDONEIRQ);
|
|
wmb();
|
|
dma->cmdr[HIFN_D_CMD_RSIZE].l |= htole32(HIFN_D_VALID);
|
|
HIFN_CMDR_SYNC(sc, HIFN_D_CMD_RSIZE,
|
|
BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
|
|
}
|
|
cmdi = dma->cmdi++;
|
|
cmdlen = hifn_write_command(cmd, dma->command_bufs[cmdi]);
|
|
HIFN_CMD_SYNC(sc, cmdi, BUS_DMASYNC_PREWRITE);
|
|
|
|
/* .p for command/result already set */
|
|
dma->cmdr[cmdi].l = htole32(cmdlen | HIFN_D_LAST |
|
|
HIFN_D_MASKDONEIRQ);
|
|
wmb();
|
|
dma->cmdr[cmdi].l |= htole32(HIFN_D_VALID);
|
|
HIFN_CMDR_SYNC(sc, cmdi,
|
|
BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
|
|
dma->cmdu++;
|
|
|
|
/*
|
|
* We don't worry about missing an interrupt (which a "command wait"
|
|
* interrupt salvages us from), unless there is more than one command
|
|
* in the queue.
|
|
*/
|
|
if (dma->cmdu > 1) {
|
|
sc->sc_dmaier |= HIFN_DMAIER_C_WAIT;
|
|
WRITE_REG_1(sc, HIFN_1_DMA_IER, sc->sc_dmaier);
|
|
}
|
|
|
|
hifnstats.hst_ipackets++;
|
|
hifnstats.hst_ibytes += cmd->src_mapsize;
|
|
|
|
hifn_dmamap_load_src(sc, cmd);
|
|
|
|
/*
|
|
* Unlike other descriptors, we don't mask done interrupt from
|
|
* result descriptor.
|
|
*/
|
|
#ifdef HIFN_DEBUG
|
|
if (hifn_debug)
|
|
device_printf(sc->sc_dev, "load res\n");
|
|
#endif
|
|
if (dma->resi == HIFN_D_RES_RSIZE) {
|
|
dma->resi = 0;
|
|
dma->resr[HIFN_D_RES_RSIZE].l = htole32(HIFN_D_JUMP|HIFN_D_MASKDONEIRQ);
|
|
wmb();
|
|
dma->resr[HIFN_D_RES_RSIZE].l |= htole32(HIFN_D_VALID);
|
|
HIFN_RESR_SYNC(sc, HIFN_D_RES_RSIZE,
|
|
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
|
}
|
|
resi = dma->resi++;
|
|
KASSERT(dma->hifn_commands[resi] == NULL,
|
|
("hifn_crypto: command slot %u busy", resi));
|
|
dma->hifn_commands[resi] = cmd;
|
|
HIFN_RES_SYNC(sc, resi, BUS_DMASYNC_PREREAD);
|
|
if ((hint & CRYPTO_HINT_MORE) && sc->sc_curbatch < hifn_maxbatch) {
|
|
dma->resr[resi].l = htole32(HIFN_MAX_RESULT |
|
|
HIFN_D_LAST | HIFN_D_MASKDONEIRQ);
|
|
wmb();
|
|
dma->resr[resi].l |= htole32(HIFN_D_VALID);
|
|
sc->sc_curbatch++;
|
|
if (sc->sc_curbatch > hifnstats.hst_maxbatch)
|
|
hifnstats.hst_maxbatch = sc->sc_curbatch;
|
|
hifnstats.hst_totbatch++;
|
|
} else {
|
|
dma->resr[resi].l = htole32(HIFN_MAX_RESULT | HIFN_D_LAST);
|
|
wmb();
|
|
dma->resr[resi].l |= htole32(HIFN_D_VALID);
|
|
sc->sc_curbatch = 0;
|
|
}
|
|
HIFN_RESR_SYNC(sc, resi,
|
|
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
|
dma->resu++;
|
|
|
|
if (cmd->sloplen)
|
|
cmd->slopidx = resi;
|
|
|
|
hifn_dmamap_load_dst(sc, cmd);
|
|
|
|
csr = 0;
|
|
if (sc->sc_c_busy == 0) {
|
|
csr |= HIFN_DMACSR_C_CTRL_ENA;
|
|
sc->sc_c_busy = 1;
|
|
}
|
|
if (sc->sc_s_busy == 0) {
|
|
csr |= HIFN_DMACSR_S_CTRL_ENA;
|
|
sc->sc_s_busy = 1;
|
|
}
|
|
if (sc->sc_r_busy == 0) {
|
|
csr |= HIFN_DMACSR_R_CTRL_ENA;
|
|
sc->sc_r_busy = 1;
|
|
}
|
|
if (sc->sc_d_busy == 0) {
|
|
csr |= HIFN_DMACSR_D_CTRL_ENA;
|
|
sc->sc_d_busy = 1;
|
|
}
|
|
if (csr)
|
|
WRITE_REG_1(sc, HIFN_1_DMA_CSR, csr);
|
|
|
|
#ifdef HIFN_DEBUG
|
|
if (hifn_debug) {
|
|
device_printf(sc->sc_dev, "command: stat %8x ier %8x\n",
|
|
READ_REG_1(sc, HIFN_1_DMA_CSR),
|
|
READ_REG_1(sc, HIFN_1_DMA_IER));
|
|
}
|
|
#endif
|
|
|
|
sc->sc_active = 5;
|
|
HIFN_UNLOCK(sc);
|
|
KASSERT(err == 0, ("hifn_crypto: success with error %u", err));
|
|
return (err); /* success */
|
|
|
|
err_dstmap:
|
|
if (cmd->src_map != cmd->dst_map)
|
|
pci_unmap_buf(sc, &cmd->dst);
|
|
err_dstmap1:
|
|
err_srcmap:
|
|
if (crp->crp_flags & CRYPTO_F_SKBUF) {
|
|
if (cmd->src_skb != cmd->dst_skb)
|
|
#ifdef NOTYET
|
|
m_freem(cmd->dst_m);
|
|
#else
|
|
device_printf(sc->sc_dev,
|
|
"%s,%d: CRYPTO_F_SKBUF src != dst not implemented\n",
|
|
__FILE__, __LINE__);
|
|
#endif
|
|
}
|
|
pci_unmap_buf(sc, &cmd->src);
|
|
err_srcmap1:
|
|
HIFN_UNLOCK(sc);
|
|
return (err);
|
|
}
|
|
|
|
static void
|
|
hifn_tick(unsigned long arg)
|
|
{
|
|
struct hifn_softc *sc;
|
|
unsigned long l_flags;
|
|
|
|
if (arg >= HIFN_MAX_CHIPS)
|
|
return;
|
|
sc = hifn_chip_idx[arg];
|
|
if (!sc)
|
|
return;
|
|
|
|
HIFN_LOCK(sc);
|
|
if (sc->sc_active == 0) {
|
|
struct hifn_dma *dma = sc->sc_dma;
|
|
u_int32_t r = 0;
|
|
|
|
if (dma->cmdu == 0 && sc->sc_c_busy) {
|
|
sc->sc_c_busy = 0;
|
|
r |= HIFN_DMACSR_C_CTRL_DIS;
|
|
}
|
|
if (dma->srcu == 0 && sc->sc_s_busy) {
|
|
sc->sc_s_busy = 0;
|
|
r |= HIFN_DMACSR_S_CTRL_DIS;
|
|
}
|
|
if (dma->dstu == 0 && sc->sc_d_busy) {
|
|
sc->sc_d_busy = 0;
|
|
r |= HIFN_DMACSR_D_CTRL_DIS;
|
|
}
|
|
if (dma->resu == 0 && sc->sc_r_busy) {
|
|
sc->sc_r_busy = 0;
|
|
r |= HIFN_DMACSR_R_CTRL_DIS;
|
|
}
|
|
if (r)
|
|
WRITE_REG_1(sc, HIFN_1_DMA_CSR, r);
|
|
} else
|
|
sc->sc_active--;
|
|
HIFN_UNLOCK(sc);
|
|
mod_timer(&sc->sc_tickto, jiffies + HZ);
|
|
}
|
|
|
|
static irqreturn_t
|
|
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,19)
|
|
hifn_intr(int irq, void *arg)
|
|
#else
|
|
hifn_intr(int irq, void *arg, struct pt_regs *regs)
|
|
#endif
|
|
{
|
|
struct hifn_softc *sc = arg;
|
|
struct hifn_dma *dma;
|
|
u_int32_t dmacsr, restart;
|
|
int i, u;
|
|
unsigned long l_flags;
|
|
|
|
dmacsr = READ_REG_1(sc, HIFN_1_DMA_CSR);
|
|
|
|
/* Nothing in the DMA unit interrupted */
|
|
if ((dmacsr & sc->sc_dmaier) == 0)
|
|
return IRQ_NONE;
|
|
|
|
HIFN_LOCK(sc);
|
|
|
|
dma = sc->sc_dma;
|
|
|
|
#ifdef HIFN_DEBUG
|
|
if (hifn_debug) {
|
|
device_printf(sc->sc_dev,
|
|
"irq: stat %08x ien %08x damier %08x i %d/%d/%d/%d k %d/%d/%d/%d u %d/%d/%d/%d\n",
|
|
dmacsr, READ_REG_1(sc, HIFN_1_DMA_IER), sc->sc_dmaier,
|
|
dma->cmdi, dma->srci, dma->dsti, dma->resi,
|
|
dma->cmdk, dma->srck, dma->dstk, dma->resk,
|
|
dma->cmdu, dma->srcu, dma->dstu, dma->resu);
|
|
}
|
|
#endif
|
|
|
|
WRITE_REG_1(sc, HIFN_1_DMA_CSR, dmacsr & sc->sc_dmaier);
|
|
|
|
if ((sc->sc_flags & HIFN_HAS_PUBLIC) &&
|
|
(dmacsr & HIFN_DMACSR_PUBDONE))
|
|
WRITE_REG_1(sc, HIFN_1_PUB_STATUS,
|
|
READ_REG_1(sc, HIFN_1_PUB_STATUS) | HIFN_PUBSTS_DONE);
|
|
|
|
restart = dmacsr & (HIFN_DMACSR_D_OVER | HIFN_DMACSR_R_OVER);
|
|
if (restart)
|
|
device_printf(sc->sc_dev, "overrun %x\n", dmacsr);
|
|
|
|
if (sc->sc_flags & HIFN_IS_7811) {
|
|
if (dmacsr & HIFN_DMACSR_ILLR)
|
|
device_printf(sc->sc_dev, "illegal read\n");
|
|
if (dmacsr & HIFN_DMACSR_ILLW)
|
|
device_printf(sc->sc_dev, "illegal write\n");
|
|
}
|
|
|
|
restart = dmacsr & (HIFN_DMACSR_C_ABORT | HIFN_DMACSR_S_ABORT |
|
|
HIFN_DMACSR_D_ABORT | HIFN_DMACSR_R_ABORT);
|
|
if (restart) {
|
|
device_printf(sc->sc_dev, "abort, resetting.\n");
|
|
hifnstats.hst_abort++;
|
|
hifn_abort(sc);
|
|
HIFN_UNLOCK(sc);
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
if ((dmacsr & HIFN_DMACSR_C_WAIT) && (dma->cmdu == 0)) {
|
|
/*
|
|
* If no slots to process and we receive a "waiting on
|
|
* command" interrupt, we disable the "waiting on command"
|
|
* (by clearing it).
|
|
*/
|
|
sc->sc_dmaier &= ~HIFN_DMAIER_C_WAIT;
|
|
WRITE_REG_1(sc, HIFN_1_DMA_IER, sc->sc_dmaier);
|
|
}
|
|
|
|
/* clear the rings */
|
|
i = dma->resk; u = dma->resu;
|
|
while (u != 0) {
|
|
HIFN_RESR_SYNC(sc, i,
|
|
BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
|
|
if (dma->resr[i].l & htole32(HIFN_D_VALID)) {
|
|
HIFN_RESR_SYNC(sc, i,
|
|
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
|
break;
|
|
}
|
|
|
|
if (i != HIFN_D_RES_RSIZE) {
|
|
struct hifn_command *cmd;
|
|
u_int8_t *macbuf = NULL;
|
|
|
|
HIFN_RES_SYNC(sc, i, BUS_DMASYNC_POSTREAD);
|
|
cmd = dma->hifn_commands[i];
|
|
KASSERT(cmd != NULL,
|
|
("hifn_intr: null command slot %u", i));
|
|
dma->hifn_commands[i] = NULL;
|
|
|
|
if (cmd->base_masks & HIFN_BASE_CMD_MAC) {
|
|
macbuf = dma->result_bufs[i];
|
|
macbuf += 12;
|
|
}
|
|
|
|
hifn_callback(sc, cmd, macbuf);
|
|
hifnstats.hst_opackets++;
|
|
u--;
|
|
}
|
|
|
|
if (++i == (HIFN_D_RES_RSIZE + 1))
|
|
i = 0;
|
|
}
|
|
dma->resk = i; dma->resu = u;
|
|
|
|
i = dma->srck; u = dma->srcu;
|
|
while (u != 0) {
|
|
if (i == HIFN_D_SRC_RSIZE)
|
|
i = 0;
|
|
HIFN_SRCR_SYNC(sc, i,
|
|
BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
|
|
if (dma->srcr[i].l & htole32(HIFN_D_VALID)) {
|
|
HIFN_SRCR_SYNC(sc, i,
|
|
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
|
break;
|
|
}
|
|
i++, u--;
|
|
}
|
|
dma->srck = i; dma->srcu = u;
|
|
|
|
i = dma->cmdk; u = dma->cmdu;
|
|
while (u != 0) {
|
|
HIFN_CMDR_SYNC(sc, i,
|
|
BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
|
|
if (dma->cmdr[i].l & htole32(HIFN_D_VALID)) {
|
|
HIFN_CMDR_SYNC(sc, i,
|
|
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
|
break;
|
|
}
|
|
if (i != HIFN_D_CMD_RSIZE) {
|
|
u--;
|
|
HIFN_CMD_SYNC(sc, i, BUS_DMASYNC_POSTWRITE);
|
|
}
|
|
if (++i == (HIFN_D_CMD_RSIZE + 1))
|
|
i = 0;
|
|
}
|
|
dma->cmdk = i; dma->cmdu = u;
|
|
|
|
HIFN_UNLOCK(sc);
|
|
|
|
if (sc->sc_needwakeup) { /* XXX check high watermark */
|
|
int wakeup = sc->sc_needwakeup & (CRYPTO_SYMQ|CRYPTO_ASYMQ);
|
|
#ifdef HIFN_DEBUG
|
|
if (hifn_debug)
|
|
device_printf(sc->sc_dev,
|
|
"wakeup crypto (%x) u %d/%d/%d/%d\n",
|
|
sc->sc_needwakeup,
|
|
dma->cmdu, dma->srcu, dma->dstu, dma->resu);
|
|
#endif
|
|
sc->sc_needwakeup &= ~wakeup;
|
|
crypto_unblock(sc->sc_cid, wakeup);
|
|
}
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
/*
|
|
* Allocate a new 'session' and return an encoded session id. 'sidp'
|
|
* contains our registration id, and should contain an encoded session
|
|
* id on successful allocation.
|
|
*/
|
|
static int
|
|
hifn_newsession(device_t dev, u_int32_t *sidp, struct cryptoini *cri)
|
|
{
|
|
struct hifn_softc *sc = device_get_softc(dev);
|
|
struct cryptoini *c;
|
|
int mac = 0, cry = 0, sesn;
|
|
struct hifn_session *ses = NULL;
|
|
unsigned long l_flags;
|
|
|
|
DPRINTF("%s()\n", __FUNCTION__);
|
|
|
|
KASSERT(sc != NULL, ("hifn_newsession: null softc"));
|
|
if (sidp == NULL || cri == NULL || sc == NULL) {
|
|
DPRINTF("%s,%d: %s - EINVAL\n", __FILE__, __LINE__, __FUNCTION__);
|
|
return (EINVAL);
|
|
}
|
|
|
|
HIFN_LOCK(sc);
|
|
if (sc->sc_sessions == NULL) {
|
|
ses = sc->sc_sessions = (struct hifn_session *)kmalloc(sizeof(*ses),
|
|
SLAB_ATOMIC);
|
|
if (ses == NULL) {
|
|
HIFN_UNLOCK(sc);
|
|
return (ENOMEM);
|
|
}
|
|
sesn = 0;
|
|
sc->sc_nsessions = 1;
|
|
} else {
|
|
for (sesn = 0; sesn < sc->sc_nsessions; sesn++) {
|
|
if (!sc->sc_sessions[sesn].hs_used) {
|
|
ses = &sc->sc_sessions[sesn];
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (ses == NULL) {
|
|
sesn = sc->sc_nsessions;
|
|
ses = (struct hifn_session *)kmalloc((sesn + 1) * sizeof(*ses),
|
|
SLAB_ATOMIC);
|
|
if (ses == NULL) {
|
|
HIFN_UNLOCK(sc);
|
|
return (ENOMEM);
|
|
}
|
|
bcopy(sc->sc_sessions, ses, sesn * sizeof(*ses));
|
|
bzero(sc->sc_sessions, sesn * sizeof(*ses));
|
|
kfree(sc->sc_sessions);
|
|
sc->sc_sessions = ses;
|
|
ses = &sc->sc_sessions[sesn];
|
|
sc->sc_nsessions++;
|
|
}
|
|
}
|
|
HIFN_UNLOCK(sc);
|
|
|
|
bzero(ses, sizeof(*ses));
|
|
ses->hs_used = 1;
|
|
|
|
for (c = cri; c != NULL; c = c->cri_next) {
|
|
switch (c->cri_alg) {
|
|
case CRYPTO_MD5:
|
|
case CRYPTO_SHA1:
|
|
case CRYPTO_MD5_HMAC:
|
|
case CRYPTO_SHA1_HMAC:
|
|
if (mac) {
|
|
DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
|
|
return (EINVAL);
|
|
}
|
|
mac = 1;
|
|
ses->hs_mlen = c->cri_mlen;
|
|
if (ses->hs_mlen == 0) {
|
|
switch (c->cri_alg) {
|
|
case CRYPTO_MD5:
|
|
case CRYPTO_MD5_HMAC:
|
|
ses->hs_mlen = 16;
|
|
break;
|
|
case CRYPTO_SHA1:
|
|
case CRYPTO_SHA1_HMAC:
|
|
ses->hs_mlen = 20;
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
case CRYPTO_DES_CBC:
|
|
case CRYPTO_3DES_CBC:
|
|
case CRYPTO_AES_CBC:
|
|
case CRYPTO_ARC4:
|
|
if (cry) {
|
|
DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
|
|
return (EINVAL);
|
|
}
|
|
cry = 1;
|
|
break;
|
|
default:
|
|
DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
|
|
return (EINVAL);
|
|
}
|
|
}
|
|
if (mac == 0 && cry == 0) {
|
|
DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
|
|
return (EINVAL);
|
|
}
|
|
|
|
*sidp = HIFN_SID(device_get_unit(sc->sc_dev), sesn);
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Deallocate a session.
|
|
* XXX this routine should run a zero'd mac/encrypt key into context ram.
|
|
* XXX to blow away any keys already stored there.
|
|
*/
|
|
static int
|
|
hifn_freesession(device_t dev, u_int64_t tid)
|
|
{
|
|
struct hifn_softc *sc = device_get_softc(dev);
|
|
int session, error;
|
|
u_int32_t sid = CRYPTO_SESID2LID(tid);
|
|
unsigned long l_flags;
|
|
|
|
DPRINTF("%s()\n", __FUNCTION__);
|
|
|
|
KASSERT(sc != NULL, ("hifn_freesession: null softc"));
|
|
if (sc == NULL) {
|
|
DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
|
|
return (EINVAL);
|
|
}
|
|
|
|
HIFN_LOCK(sc);
|
|
session = HIFN_SESSION(sid);
|
|
if (session < sc->sc_nsessions) {
|
|
bzero(&sc->sc_sessions[session], sizeof(struct hifn_session));
|
|
error = 0;
|
|
} else {
|
|
DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
|
|
error = EINVAL;
|
|
}
|
|
HIFN_UNLOCK(sc);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
hifn_process(device_t dev, struct cryptop *crp, int hint)
|
|
{
|
|
struct hifn_softc *sc = device_get_softc(dev);
|
|
struct hifn_command *cmd = NULL;
|
|
int session, err, ivlen;
|
|
struct cryptodesc *crd1, *crd2, *maccrd, *enccrd;
|
|
|
|
DPRINTF("%s()\n", __FUNCTION__);
|
|
|
|
if (crp == NULL || crp->crp_callback == NULL) {
|
|
hifnstats.hst_invalid++;
|
|
DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
|
|
return (EINVAL);
|
|
}
|
|
session = HIFN_SESSION(crp->crp_sid);
|
|
|
|
if (sc == NULL || session >= sc->sc_nsessions) {
|
|
DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
|
|
err = EINVAL;
|
|
goto errout;
|
|
}
|
|
|
|
cmd = kmalloc(sizeof(struct hifn_command), SLAB_ATOMIC);
|
|
if (cmd == NULL) {
|
|
hifnstats.hst_nomem++;
|
|
err = ENOMEM;
|
|
goto errout;
|
|
}
|
|
memset(cmd, 0, sizeof(*cmd));
|
|
|
|
if (crp->crp_flags & CRYPTO_F_SKBUF) {
|
|
cmd->src_skb = (struct sk_buff *)crp->crp_buf;
|
|
cmd->dst_skb = (struct sk_buff *)crp->crp_buf;
|
|
} else if (crp->crp_flags & CRYPTO_F_IOV) {
|
|
cmd->src_io = (struct uio *)crp->crp_buf;
|
|
cmd->dst_io = (struct uio *)crp->crp_buf;
|
|
} else {
|
|
cmd->src_buf = crp->crp_buf;
|
|
cmd->dst_buf = crp->crp_buf;
|
|
}
|
|
|
|
crd1 = crp->crp_desc;
|
|
if (crd1 == NULL) {
|
|
DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
|
|
err = EINVAL;
|
|
goto errout;
|
|
}
|
|
crd2 = crd1->crd_next;
|
|
|
|
if (crd2 == NULL) {
|
|
if (crd1->crd_alg == CRYPTO_MD5_HMAC ||
|
|
crd1->crd_alg == CRYPTO_SHA1_HMAC ||
|
|
crd1->crd_alg == CRYPTO_SHA1 ||
|
|
crd1->crd_alg == CRYPTO_MD5) {
|
|
maccrd = crd1;
|
|
enccrd = NULL;
|
|
} else if (crd1->crd_alg == CRYPTO_DES_CBC ||
|
|
crd1->crd_alg == CRYPTO_3DES_CBC ||
|
|
crd1->crd_alg == CRYPTO_AES_CBC ||
|
|
crd1->crd_alg == CRYPTO_ARC4) {
|
|
if ((crd1->crd_flags & CRD_F_ENCRYPT) == 0)
|
|
cmd->base_masks |= HIFN_BASE_CMD_DECODE;
|
|
maccrd = NULL;
|
|
enccrd = crd1;
|
|
} else {
|
|
DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
|
|
err = EINVAL;
|
|
goto errout;
|
|
}
|
|
} else {
|
|
if ((crd1->crd_alg == CRYPTO_MD5_HMAC ||
|
|
crd1->crd_alg == CRYPTO_SHA1_HMAC ||
|
|
crd1->crd_alg == CRYPTO_MD5 ||
|
|
crd1->crd_alg == CRYPTO_SHA1) &&
|
|
(crd2->crd_alg == CRYPTO_DES_CBC ||
|
|
crd2->crd_alg == CRYPTO_3DES_CBC ||
|
|
crd2->crd_alg == CRYPTO_AES_CBC ||
|
|
crd2->crd_alg == CRYPTO_ARC4) &&
|
|
((crd2->crd_flags & CRD_F_ENCRYPT) == 0)) {
|
|
cmd->base_masks = HIFN_BASE_CMD_DECODE;
|
|
maccrd = crd1;
|
|
enccrd = crd2;
|
|
} else if ((crd1->crd_alg == CRYPTO_DES_CBC ||
|
|
crd1->crd_alg == CRYPTO_ARC4 ||
|
|
crd1->crd_alg == CRYPTO_3DES_CBC ||
|
|
crd1->crd_alg == CRYPTO_AES_CBC) &&
|
|
(crd2->crd_alg == CRYPTO_MD5_HMAC ||
|
|
crd2->crd_alg == CRYPTO_SHA1_HMAC ||
|
|
crd2->crd_alg == CRYPTO_MD5 ||
|
|
crd2->crd_alg == CRYPTO_SHA1) &&
|
|
(crd1->crd_flags & CRD_F_ENCRYPT)) {
|
|
enccrd = crd1;
|
|
maccrd = crd2;
|
|
} else {
|
|
/*
|
|
* We cannot order the 7751 as requested
|
|
*/
|
|
DPRINTF("%s,%d: %s %d,%d,%d - EINVAL\n",__FILE__,__LINE__,__FUNCTION__, crd1->crd_alg, crd2->crd_alg, crd1->crd_flags & CRD_F_ENCRYPT);
|
|
err = EINVAL;
|
|
goto errout;
|
|
}
|
|
}
|
|
|
|
if (enccrd) {
|
|
cmd->enccrd = enccrd;
|
|
cmd->base_masks |= HIFN_BASE_CMD_CRYPT;
|
|
switch (enccrd->crd_alg) {
|
|
case CRYPTO_ARC4:
|
|
cmd->cry_masks |= HIFN_CRYPT_CMD_ALG_RC4;
|
|
break;
|
|
case CRYPTO_DES_CBC:
|
|
cmd->cry_masks |= HIFN_CRYPT_CMD_ALG_DES |
|
|
HIFN_CRYPT_CMD_MODE_CBC |
|
|
HIFN_CRYPT_CMD_NEW_IV;
|
|
break;
|
|
case CRYPTO_3DES_CBC:
|
|
cmd->cry_masks |= HIFN_CRYPT_CMD_ALG_3DES |
|
|
HIFN_CRYPT_CMD_MODE_CBC |
|
|
HIFN_CRYPT_CMD_NEW_IV;
|
|
break;
|
|
case CRYPTO_AES_CBC:
|
|
cmd->cry_masks |= HIFN_CRYPT_CMD_ALG_AES |
|
|
HIFN_CRYPT_CMD_MODE_CBC |
|
|
HIFN_CRYPT_CMD_NEW_IV;
|
|
break;
|
|
default:
|
|
DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
|
|
err = EINVAL;
|
|
goto errout;
|
|
}
|
|
if (enccrd->crd_alg != CRYPTO_ARC4) {
|
|
ivlen = ((enccrd->crd_alg == CRYPTO_AES_CBC) ?
|
|
HIFN_AES_IV_LENGTH : HIFN_IV_LENGTH);
|
|
if (enccrd->crd_flags & CRD_F_ENCRYPT) {
|
|
if (enccrd->crd_flags & CRD_F_IV_EXPLICIT)
|
|
bcopy(enccrd->crd_iv, cmd->iv, ivlen);
|
|
else
|
|
read_random(cmd->iv, ivlen);
|
|
|
|
if ((enccrd->crd_flags & CRD_F_IV_PRESENT)
|
|
== 0) {
|
|
crypto_copyback(crp->crp_flags,
|
|
crp->crp_buf, enccrd->crd_inject,
|
|
ivlen, cmd->iv);
|
|
}
|
|
} else {
|
|
if (enccrd->crd_flags & CRD_F_IV_EXPLICIT)
|
|
bcopy(enccrd->crd_iv, cmd->iv, ivlen);
|
|
else {
|
|
crypto_copydata(crp->crp_flags,
|
|
crp->crp_buf, enccrd->crd_inject,
|
|
ivlen, cmd->iv);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (enccrd->crd_flags & CRD_F_KEY_EXPLICIT)
|
|
cmd->cry_masks |= HIFN_CRYPT_CMD_NEW_KEY;
|
|
cmd->ck = enccrd->crd_key;
|
|
cmd->cklen = enccrd->crd_klen >> 3;
|
|
cmd->cry_masks |= HIFN_CRYPT_CMD_NEW_KEY;
|
|
|
|
/*
|
|
* Need to specify the size for the AES key in the masks.
|
|
*/
|
|
if ((cmd->cry_masks & HIFN_CRYPT_CMD_ALG_MASK) ==
|
|
HIFN_CRYPT_CMD_ALG_AES) {
|
|
switch (cmd->cklen) {
|
|
case 16:
|
|
cmd->cry_masks |= HIFN_CRYPT_CMD_KSZ_128;
|
|
break;
|
|
case 24:
|
|
cmd->cry_masks |= HIFN_CRYPT_CMD_KSZ_192;
|
|
break;
|
|
case 32:
|
|
cmd->cry_masks |= HIFN_CRYPT_CMD_KSZ_256;
|
|
break;
|
|
default:
|
|
DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
|
|
err = EINVAL;
|
|
goto errout;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (maccrd) {
|
|
cmd->maccrd = maccrd;
|
|
cmd->base_masks |= HIFN_BASE_CMD_MAC;
|
|
|
|
switch (maccrd->crd_alg) {
|
|
case CRYPTO_MD5:
|
|
cmd->mac_masks |= HIFN_MAC_CMD_ALG_MD5 |
|
|
HIFN_MAC_CMD_RESULT | HIFN_MAC_CMD_MODE_HASH |
|
|
HIFN_MAC_CMD_POS_IPSEC;
|
|
break;
|
|
case CRYPTO_MD5_HMAC:
|
|
cmd->mac_masks |= HIFN_MAC_CMD_ALG_MD5 |
|
|
HIFN_MAC_CMD_RESULT | HIFN_MAC_CMD_MODE_HMAC |
|
|
HIFN_MAC_CMD_POS_IPSEC | HIFN_MAC_CMD_TRUNC;
|
|
break;
|
|
case CRYPTO_SHA1:
|
|
cmd->mac_masks |= HIFN_MAC_CMD_ALG_SHA1 |
|
|
HIFN_MAC_CMD_RESULT | HIFN_MAC_CMD_MODE_HASH |
|
|
HIFN_MAC_CMD_POS_IPSEC;
|
|
break;
|
|
case CRYPTO_SHA1_HMAC:
|
|
cmd->mac_masks |= HIFN_MAC_CMD_ALG_SHA1 |
|
|
HIFN_MAC_CMD_RESULT | HIFN_MAC_CMD_MODE_HMAC |
|
|
HIFN_MAC_CMD_POS_IPSEC | HIFN_MAC_CMD_TRUNC;
|
|
break;
|
|
}
|
|
|
|
if (maccrd->crd_alg == CRYPTO_SHA1_HMAC ||
|
|
maccrd->crd_alg == CRYPTO_MD5_HMAC) {
|
|
cmd->mac_masks |= HIFN_MAC_CMD_NEW_KEY;
|
|
bcopy(maccrd->crd_key, cmd->mac, maccrd->crd_klen >> 3);
|
|
bzero(cmd->mac + (maccrd->crd_klen >> 3),
|
|
HIFN_MAC_KEY_LENGTH - (maccrd->crd_klen >> 3));
|
|
}
|
|
}
|
|
|
|
cmd->crp = crp;
|
|
cmd->session_num = session;
|
|
cmd->softc = sc;
|
|
|
|
err = hifn_crypto(sc, cmd, crp, hint);
|
|
if (!err) {
|
|
return 0;
|
|
} else if (err == ERESTART) {
|
|
/*
|
|
* There weren't enough resources to dispatch the request
|
|
* to the part. Notify the caller so they'll requeue this
|
|
* request and resubmit it again soon.
|
|
*/
|
|
#ifdef HIFN_DEBUG
|
|
if (hifn_debug)
|
|
device_printf(sc->sc_dev, "requeue request\n");
|
|
#endif
|
|
kfree(cmd);
|
|
sc->sc_needwakeup |= CRYPTO_SYMQ;
|
|
return (err);
|
|
}
|
|
|
|
errout:
|
|
if (cmd != NULL)
|
|
kfree(cmd);
|
|
if (err == EINVAL)
|
|
hifnstats.hst_invalid++;
|
|
else
|
|
hifnstats.hst_nomem++;
|
|
crp->crp_etype = err;
|
|
crypto_done(crp);
|
|
return (err);
|
|
}
|
|
|
|
static void
|
|
hifn_abort(struct hifn_softc *sc)
|
|
{
|
|
struct hifn_dma *dma = sc->sc_dma;
|
|
struct hifn_command *cmd;
|
|
struct cryptop *crp;
|
|
int i, u;
|
|
|
|
DPRINTF("%s()\n", __FUNCTION__);
|
|
|
|
i = dma->resk; u = dma->resu;
|
|
while (u != 0) {
|
|
cmd = dma->hifn_commands[i];
|
|
KASSERT(cmd != NULL, ("hifn_abort: null command slot %u", i));
|
|
dma->hifn_commands[i] = NULL;
|
|
crp = cmd->crp;
|
|
|
|
if ((dma->resr[i].l & htole32(HIFN_D_VALID)) == 0) {
|
|
/* Salvage what we can. */
|
|
u_int8_t *macbuf;
|
|
|
|
if (cmd->base_masks & HIFN_BASE_CMD_MAC) {
|
|
macbuf = dma->result_bufs[i];
|
|
macbuf += 12;
|
|
} else
|
|
macbuf = NULL;
|
|
hifnstats.hst_opackets++;
|
|
hifn_callback(sc, cmd, macbuf);
|
|
} else {
|
|
#if 0
|
|
if (cmd->src_map == cmd->dst_map) {
|
|
bus_dmamap_sync(sc->sc_dmat, cmd->src_map,
|
|
BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
|
|
} else {
|
|
bus_dmamap_sync(sc->sc_dmat, cmd->src_map,
|
|
BUS_DMASYNC_POSTWRITE);
|
|
bus_dmamap_sync(sc->sc_dmat, cmd->dst_map,
|
|
BUS_DMASYNC_POSTREAD);
|
|
}
|
|
#endif
|
|
|
|
if (cmd->src_skb != cmd->dst_skb) {
|
|
#ifdef NOTYET
|
|
m_freem(cmd->src_m);
|
|
crp->crp_buf = (caddr_t)cmd->dst_m;
|
|
#else
|
|
device_printf(sc->sc_dev,
|
|
"%s,%d: CRYPTO_F_SKBUF src != dst not implemented\n",
|
|
__FILE__, __LINE__);
|
|
#endif
|
|
}
|
|
|
|
/* non-shared buffers cannot be restarted */
|
|
if (cmd->src_map != cmd->dst_map) {
|
|
/*
|
|
* XXX should be EAGAIN, delayed until
|
|
* after the reset.
|
|
*/
|
|
crp->crp_etype = ENOMEM;
|
|
pci_unmap_buf(sc, &cmd->dst);
|
|
} else
|
|
crp->crp_etype = ENOMEM;
|
|
|
|
pci_unmap_buf(sc, &cmd->src);
|
|
|
|
kfree(cmd);
|
|
if (crp->crp_etype != EAGAIN)
|
|
crypto_done(crp);
|
|
}
|
|
|
|
if (++i == HIFN_D_RES_RSIZE)
|
|
i = 0;
|
|
u--;
|
|
}
|
|
dma->resk = i; dma->resu = u;
|
|
|
|
hifn_reset_board(sc, 1);
|
|
hifn_init_dma(sc);
|
|
hifn_init_pci_registers(sc);
|
|
}
|
|
|
|
static void
|
|
hifn_callback(struct hifn_softc *sc, struct hifn_command *cmd, u_int8_t *macbuf)
|
|
{
|
|
struct hifn_dma *dma = sc->sc_dma;
|
|
struct cryptop *crp = cmd->crp;
|
|
struct cryptodesc *crd;
|
|
int i, u;
|
|
|
|
DPRINTF("%s()\n", __FUNCTION__);
|
|
|
|
#if 0
|
|
if (cmd->src_map == cmd->dst_map) {
|
|
bus_dmamap_sync(sc->sc_dmat, cmd->src_map,
|
|
BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD);
|
|
} else {
|
|
bus_dmamap_sync(sc->sc_dmat, cmd->src_map,
|
|
BUS_DMASYNC_POSTWRITE);
|
|
bus_dmamap_sync(sc->sc_dmat, cmd->dst_map,
|
|
BUS_DMASYNC_POSTREAD);
|
|
}
|
|
#endif
|
|
|
|
if (crp->crp_flags & CRYPTO_F_SKBUF) {
|
|
if (cmd->src_skb != cmd->dst_skb) {
|
|
#ifdef NOTYET
|
|
crp->crp_buf = (caddr_t)cmd->dst_m;
|
|
totlen = cmd->src_mapsize;
|
|
for (m = cmd->dst_m; m != NULL; m = m->m_next) {
|
|
if (totlen < m->m_len) {
|
|
m->m_len = totlen;
|
|
totlen = 0;
|
|
} else
|
|
totlen -= m->m_len;
|
|
}
|
|
cmd->dst_m->m_pkthdr.len = cmd->src_m->m_pkthdr.len;
|
|
m_freem(cmd->src_m);
|
|
#else
|
|
device_printf(sc->sc_dev,
|
|
"%s,%d: CRYPTO_F_SKBUF src != dst not implemented\n",
|
|
__FILE__, __LINE__);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
if (cmd->sloplen != 0) {
|
|
crypto_copyback(crp->crp_flags, crp->crp_buf,
|
|
cmd->src_mapsize - cmd->sloplen, cmd->sloplen,
|
|
(caddr_t)&dma->slop[cmd->slopidx]);
|
|
}
|
|
|
|
i = dma->dstk; u = dma->dstu;
|
|
while (u != 0) {
|
|
if (i == HIFN_D_DST_RSIZE)
|
|
i = 0;
|
|
#if 0
|
|
bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap,
|
|
BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
|
|
#endif
|
|
if (dma->dstr[i].l & htole32(HIFN_D_VALID)) {
|
|
#if 0
|
|
bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap,
|
|
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
|
#endif
|
|
break;
|
|
}
|
|
i++, u--;
|
|
}
|
|
dma->dstk = i; dma->dstu = u;
|
|
|
|
hifnstats.hst_obytes += cmd->dst_mapsize;
|
|
|
|
if (macbuf != NULL) {
|
|
for (crd = crp->crp_desc; crd; crd = crd->crd_next) {
|
|
int len;
|
|
|
|
if (crd->crd_alg != CRYPTO_MD5 &&
|
|
crd->crd_alg != CRYPTO_SHA1 &&
|
|
crd->crd_alg != CRYPTO_MD5_HMAC &&
|
|
crd->crd_alg != CRYPTO_SHA1_HMAC) {
|
|
continue;
|
|
}
|
|
len = cmd->softc->sc_sessions[cmd->session_num].hs_mlen;
|
|
crypto_copyback(crp->crp_flags, crp->crp_buf,
|
|
crd->crd_inject, len, macbuf);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (cmd->src_map != cmd->dst_map)
|
|
pci_unmap_buf(sc, &cmd->dst);
|
|
pci_unmap_buf(sc, &cmd->src);
|
|
kfree(cmd);
|
|
crypto_done(crp);
|
|
}
|
|
|
|
/*
|
|
* 7811 PB3 rev/2 parts lock-up on burst writes to Group 0
|
|
* and Group 1 registers; avoid conditions that could create
|
|
* burst writes by doing a read in between the writes.
|
|
*
|
|
* NB: The read we interpose is always to the same register;
|
|
* we do this because reading from an arbitrary (e.g. last)
|
|
* register may not always work.
|
|
*/
|
|
static void
|
|
hifn_write_reg_0(struct hifn_softc *sc, bus_size_t reg, u_int32_t val)
|
|
{
|
|
if (sc->sc_flags & HIFN_IS_7811) {
|
|
if (sc->sc_bar0_lastreg == reg - 4)
|
|
readl(sc->sc_bar0 + HIFN_0_PUCNFG);
|
|
sc->sc_bar0_lastreg = reg;
|
|
}
|
|
writel(val, sc->sc_bar0 + reg);
|
|
}
|
|
|
|
static void
|
|
hifn_write_reg_1(struct hifn_softc *sc, bus_size_t reg, u_int32_t val)
|
|
{
|
|
if (sc->sc_flags & HIFN_IS_7811) {
|
|
if (sc->sc_bar1_lastreg == reg - 4)
|
|
readl(sc->sc_bar1 + HIFN_1_REVID);
|
|
sc->sc_bar1_lastreg = reg;
|
|
}
|
|
writel(val, sc->sc_bar1 + reg);
|
|
}
|
|
|
|
|
|
static struct pci_device_id hifn_pci_tbl[] = {
|
|
{ PCI_VENDOR_HIFN, PCI_PRODUCT_HIFN_7951,
|
|
PCI_ANY_ID, PCI_ANY_ID, 0, 0, },
|
|
{ PCI_VENDOR_HIFN, PCI_PRODUCT_HIFN_7955,
|
|
PCI_ANY_ID, PCI_ANY_ID, 0, 0, },
|
|
{ PCI_VENDOR_HIFN, PCI_PRODUCT_HIFN_7956,
|
|
PCI_ANY_ID, PCI_ANY_ID, 0, 0, },
|
|
{ PCI_VENDOR_NETSEC, PCI_PRODUCT_NETSEC_7751,
|
|
PCI_ANY_ID, PCI_ANY_ID, 0, 0, },
|
|
{ PCI_VENDOR_INVERTEX, PCI_PRODUCT_INVERTEX_AEON,
|
|
PCI_ANY_ID, PCI_ANY_ID, 0, 0, },
|
|
{ PCI_VENDOR_HIFN, PCI_PRODUCT_HIFN_7811,
|
|
PCI_ANY_ID, PCI_ANY_ID, 0, 0, },
|
|
/*
|
|
* Other vendors share this PCI ID as well, such as
|
|
* http://www.powercrypt.com, and obviously they also
|
|
* use the same key.
|
|
*/
|
|
{ PCI_VENDOR_HIFN, PCI_PRODUCT_HIFN_7751,
|
|
PCI_ANY_ID, PCI_ANY_ID, 0, 0, },
|
|
{ 0, 0, 0, 0, 0, 0, }
|
|
};
|
|
MODULE_DEVICE_TABLE(pci, hifn_pci_tbl);
|
|
|
|
static struct pci_driver hifn_driver = {
|
|
.name = "hifn",
|
|
.id_table = hifn_pci_tbl,
|
|
.probe = hifn_probe,
|
|
.remove = hifn_remove,
|
|
/* add PM stuff here one day */
|
|
};
|
|
|
|
static int __init hifn_init (void)
|
|
{
|
|
struct hifn_softc *sc = NULL;
|
|
int rc;
|
|
|
|
DPRINTF("%s(%p)\n", __FUNCTION__, hifn_init);
|
|
|
|
rc = pci_register_driver(&hifn_driver);
|
|
pci_register_driver_compat(&hifn_driver, rc);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static void __exit hifn_exit (void)
|
|
{
|
|
pci_unregister_driver(&hifn_driver);
|
|
}
|
|
|
|
module_init(hifn_init);
|
|
module_exit(hifn_exit);
|
|
|
|
MODULE_LICENSE("BSD");
|
|
MODULE_AUTHOR("David McCullough <david_mccullough@mcafee.com>");
|
|
MODULE_DESCRIPTION("OCF driver for hifn PCI crypto devices");
|