diff options
Diffstat (limited to 'package/ubsec_ssb/src/ubsec_ssb.c')
| -rw-r--r-- | package/ubsec_ssb/src/ubsec_ssb.c | 2218 |
1 files changed, 0 insertions, 2218 deletions
diff --git a/package/ubsec_ssb/src/ubsec_ssb.c b/package/ubsec_ssb/src/ubsec_ssb.c deleted file mode 100644 index d6adf596dd..0000000000 --- a/package/ubsec_ssb/src/ubsec_ssb.c +++ /dev/null @@ -1,2218 +0,0 @@ - -/* - * Copyright (c) 2008 Daniel Mueller (daniel@danm.de) - * Copyright (c) 2007 David McCullough (david_mccullough@securecomputing.com) - * Copyright (c) 2000 Jason L. Wright (jason@thought.net) - * Copyright (c) 2000 Theo de Raadt (deraadt@openbsd.org) - * Copyright (c) 2001 Patrik Lindergren (patrik@ipunplugged.com) - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN - * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - * - * Effort sponsored in part by the Defense Advanced Research Projects - * Agency (DARPA) and Air Force Research Laboratory, Air Force - * Materiel Command, USAF, under agreement number F30602-01-2-0537. - * - */ -#undef UBSEC_DEBUG -#undef UBSEC_VERBOSE_DEBUG - -#ifdef UBSEC_VERBOSE_DEBUG -#define UBSEC_DEBUG -#endif - -/* - * uBsec BCM5365 hardware crypto accelerator - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/moduleparam.h> -#include <linux/proc_fs.h> -#include <linux/types.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/interrupt.h> -#include <linux/fs.h> -#include <linux/random.h> -#include <linux/skbuff.h> -#include <linux/stat.h> -#include <asm/io.h> - -#include <linux/ssb/ssb.h> - -/* - * BSD queue - */ -#include "bsdqueue.h" - -/* - * OCF - */ -#include "cryptodev.h" -#include "uio.h" - -#define HMAC_HACK 1 - -#ifdef HMAC_HACK -#include "hmachack.h" -#include "md5.h" -#include "md5.c" -#include "sha1.h" -#include "sha1.c" -#endif - -#include "ubsecreg.h" -#include "ubsecvar.h" - -#define DRV_MODULE_NAME "ubsec_ssb" -#define PFX DRV_MODULE_NAME ": " -#define DRV_MODULE_VERSION "0.02" -#define DRV_MODULE_RELDATE "Feb 21, 2009" - -#if 1 -#define DPRINTF(a...) \ - if (debug) \ - { \ - printk(DRV_MODULE_NAME ": " a); \ - } -#else -#define DPRINTF(a...) -#endif - -/* - * Prototypes - */ -static irqreturn_t ubsec_ssb_isr(int, void *, struct pt_regs *); -static int __devinit ubsec_ssb_probe(struct ssb_device *sdev, - const struct ssb_device_id *ent); -static void __devexit ubsec_ssb_remove(struct ssb_device *sdev); -int ubsec_attach(struct ssb_device *sdev, const struct ssb_device_id *ent, - struct device *self); -static void ubsec_setup_mackey(struct ubsec_session *ses, int algo, - caddr_t key, int klen); -static int dma_map_skb(struct ubsec_softc *sc, - struct ubsec_dma_alloc* q_map, struct sk_buff *skb, int *mlen); -static int dma_map_uio(struct ubsec_softc *sc, - struct ubsec_dma_alloc *q_map, struct uio *uio, int *mlen); -static void dma_unmap(struct ubsec_softc *sc, - struct ubsec_dma_alloc *q_map, int mlen); -static int ubsec_dmamap_aligned(struct ubsec_softc *sc, - const struct ubsec_dma_alloc *q_map, int mlen); - -#ifdef UBSEC_DEBUG -static int proc_read(char *buf, char **start, off_t offset, - int size, int *peof, void *data); -#endif - -void ubsec_reset_board(struct ubsec_softc *); -void ubsec_init_board(struct ubsec_softc *); -void ubsec_cleanchip(struct ubsec_softc *); -void ubsec_totalreset(struct ubsec_softc *); -int ubsec_free_q(struct ubsec_softc*, struct ubsec_q *); - -static int ubsec_newsession(device_t, u_int32_t *, struct cryptoini *); -static int ubsec_freesession(device_t, u_int64_t); -static int ubsec_process(device_t, struct cryptop *, int); - -void ubsec_callback(struct ubsec_softc *, struct ubsec_q *); -void ubsec_feed(struct ubsec_softc *); -void ubsec_mcopy(struct sk_buff *, struct sk_buff *, int, int); -void ubsec_dma_free(struct ubsec_softc *, struct ubsec_dma_alloc *); -int ubsec_dma_malloc(struct ubsec_softc *, struct ubsec_dma_alloc *, - size_t, int); - -/* DEBUG crap... */ -void ubsec_dump_pb(struct ubsec_pktbuf *); -void ubsec_dump_mcr(struct ubsec_mcr *); - -#define READ_REG(sc,r) \ - ssb_read32((sc)->sdev, (r)); -#define WRITE_REG(sc,r,val) \ - ssb_write32((sc)->sdev, (r), (val)); -#define READ_REG_SDEV(sdev,r) \ - ssb_read32((sdev), (r)); -#define WRITE_REG_SDEV(sdev,r,val) \ - ssb_write32((sdev), (r), (val)); - -#define SWAP32(x) (x) = htole32(ntohl((x))) -#define HTOLE32(x) (x) = htole32(x) - -#ifdef __LITTLE_ENDIAN -#define letoh16(x) (x) -#define letoh32(x) (x) -#endif - -static int debug; -module_param(debug, int, 0644); -MODULE_PARM_DESC(debug, "Enable debug output"); - -#define UBSEC_SSB_MAX_CHIPS 1 -static struct ubsec_softc *ubsec_chip_idx[UBSEC_SSB_MAX_CHIPS]; -static struct ubsec_stats ubsecstats; - -#ifdef UBSEC_DEBUG -static struct proc_dir_entry *procdebug; -#endif - -static struct ssb_device_id ubsec_ssb_tbl[] = { - /* Broadcom BCM5365P IPSec Core */ - SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_IPSEC, SSB_ANY_REV), - SSB_DEVTABLE_END -}; - -static struct ssb_driver ubsec_ssb_driver = { - .name = DRV_MODULE_NAME, - .id_table = ubsec_ssb_tbl, - .probe = ubsec_ssb_probe, - .remove = __devexit_p(ubsec_ssb_remove), - /* - .suspend = ubsec_ssb_suspend, - .resume = ubsec_ssb_resume - */ -}; - -static device_method_t ubsec_ssb_methods = { - /* crypto device methods */ - DEVMETHOD(cryptodev_newsession, ubsec_newsession), - DEVMETHOD(cryptodev_freesession,ubsec_freesession), - DEVMETHOD(cryptodev_process, ubsec_process), -}; - -#ifdef UBSEC_DEBUG -static int -proc_read(char *buf, char **start, off_t offset, - int size, int *peof, void *data) -{ - int i = 0, byteswritten = 0, ret; - unsigned int stat, ctrl; -#ifdef UBSEC_VERBOSE_DEBUG - struct ubsec_q *q; - struct ubsec_dma *dmap; -#endif - - while ((i < UBSEC_SSB_MAX_CHIPS) && (ubsec_chip_idx[i] != NULL)) - { - struct ubsec_softc *sc = ubsec_chip_idx[i]; - - stat = READ_REG(sc, BS_STAT); - ctrl = READ_REG(sc, BS_CTRL); - ret = snprintf((buf + byteswritten), - (size - byteswritten) , - "DEV %d, DMASTAT %08x, DMACTRL %08x\n", i, stat, ctrl); - - byteswritten += ret; - -#ifdef UBSEC_VERBOSE_DEBUG - printf("DEV %d, DMASTAT %08x, DMACTRL %08x\n", i, stat, ctrl); - - /* Dump all queues MCRs */ - if (!BSD_SIMPLEQ_EMPTY(&sc->sc_qchip)) { - BSD_SIMPLEQ_FOREACH(q, &sc->sc_qchip, q_next) - { - dmap = q->q_dma; - ubsec_dump_mcr(&dmap->d_dma->d_mcr); - } - } -#endif - - i++; - } - - *peof = 1; - - return byteswritten; -} -#endif - -/* - * map in a given sk_buff - */ -static int -dma_map_skb(struct ubsec_softc *sc, struct ubsec_dma_alloc* q_map, struct sk_buff *skb, int *mlen) -{ - int i = 0; - dma_addr_t tmp; - -#ifdef UBSEC_DEBUG - DPRINTF("%s()\n", __FUNCTION__); -#endif - - /* - * We support only a limited number of fragments. - */ - if (unlikely((skb_shinfo(skb)->nr_frags + 1) >= UBS_MAX_SCATTER)) - { - printk(KERN_ERR "Only %d scatter fragments are supported.\n", UBS_MAX_SCATTER); - return (-ENOMEM); - } - -#ifdef UBSEC_VERBOSE_DEBUG - DPRINTF("%s - map %d 0x%x %d\n", __FUNCTION__, 0, (unsigned int)skb->data, skb_headlen(skb)); -#endif - - /* first data package */ - tmp = dma_map_single(sc->sc_dv, - skb->data, - skb_headlen(skb), - DMA_BIDIRECTIONAL); - - q_map[i].dma_paddr = tmp; - q_map[i].dma_vaddr = skb->data; - q_map[i].dma_size = skb_headlen(skb); - - if (unlikely(tmp == 0)) - { - printk(KERN_ERR "Could not map memory region for dma.\n"); - return (-EINVAL); - } - -#ifdef UBSEC_VERBOSE_DEBUG - DPRINTF("%s - map %d done physical addr 0x%x\n", __FUNCTION__, 0, (unsigned int)tmp); -#endif - - - /* all other data packages */ - for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { - -#ifdef UBSEC_VERBOSE_DEBUG - DPRINTF("%s - map %d 0x%x %d\n", __FUNCTION__, i + 1, - (unsigned int)page_address(skb_shinfo(skb)->frags[i].page) + - skb_shinfo(skb)->frags[i].page_offset, skb_shinfo(skb)->frags[i].size); -#endif - - tmp = dma_map_single(sc->sc_dv, - page_address(skb_shinfo(skb)->frags[i].page) + - skb_shinfo(skb)->frags[i].page_offset, - skb_shinfo(skb)->frags[i].size, - DMA_BIDIRECTIONAL); - - q_map[i + 1].dma_paddr = tmp; - q_map[i + 1].dma_vaddr = (void*)(page_address(skb_shinfo(skb)->frags[i].page) + - skb_shinfo(skb)->frags[i].page_offset); - q_map[i + 1].dma_size = skb_shinfo(skb)->frags[i].size; - - if (unlikely(tmp == 0)) - { - printk(KERN_ERR "Could not map memory region for dma.\n"); - return (-EINVAL); - } - -#ifdef UBSEC_VERBOSE_DEBUG - DPRINTF("%s - map %d done physical addr 0x%x\n", __FUNCTION__, i + 1, (unsigned int)tmp); -#endif - - } - *mlen = i + 1; - - return(0); -} - -/* - * map in a given uio buffer - */ - -static int -dma_map_uio(struct ubsec_softc *sc, struct ubsec_dma_alloc *q_map, struct uio *uio, int *mlen) -{ - struct iovec *iov = uio->uio_iov; - int n; - dma_addr_t tmp; - -#ifdef UBSEC_DEBUG - DPRINTF("%s()\n", __FUNCTION__); -#endif - - /* - * We support only a limited number of fragments. - */ - if (unlikely(uio->uio_iovcnt >= UBS_MAX_SCATTER)) - { - printk(KERN_ERR "Only %d scatter fragments are supported.\n", UBS_MAX_SCATTER); - return (-ENOMEM); - } - - for (n = 0; n < uio->uio_iovcnt; n++) { -#ifdef UBSEC_VERBOSE_DEBUG - DPRINTF("%s - map %d 0x%x %d\n", __FUNCTION__, n, (unsigned int)iov->iov_base, iov->iov_len); -#endif - tmp = dma_map_single(sc->sc_dv, - iov->iov_base, - iov->iov_len, - DMA_BIDIRECTIONAL); - - q_map[n].dma_paddr = tmp; - q_map[n].dma_vaddr = iov->iov_base; - q_map[n].dma_size = iov->iov_len; - - if (unlikely(tmp == 0)) - { - printk(KERN_ERR "Could not map memory region for dma.\n"); - return (-EINVAL); - } - -#ifdef UBSEC_VERBOSE_DEBUG - DPRINTF("%s - map %d done physical addr 0x%x\n", __FUNCTION__, n, (unsigned int)tmp); -#endif - - iov++; - } - *mlen = n; - - return(0); -} - -static void -dma_unmap(struct ubsec_softc *sc, struct ubsec_dma_alloc *q_map, int mlen) -{ - int i; - -#ifdef UBSEC_DEBUG - DPRINTF("%s()\n", __FUNCTION__); -#endif - - for(i = 0; i < mlen; i++) - { -#ifdef UBSEC_VERBOSE_DEBUG - DPRINTF("%s - unmap %d 0x%x %d\n", __FUNCTION__, i, (unsigned int)q_map[i].dma_paddr, q_map[i].dma_size); -#endif - dma_unmap_single(sc->sc_dv, - q_map[i].dma_paddr, - q_map[i].dma_size, - DMA_BIDIRECTIONAL); - } - return; -} - -/* - * Is the operand suitable aligned for direct DMA. Each - * segment must be aligned on a 32-bit boundary and all - * but the last segment must be a multiple of 4 bytes. - */ -static int -ubsec_dmamap_aligned(struct ubsec_softc *sc, const struct ubsec_dma_alloc *q_map, int mlen) -{ - int i; - -#ifdef UBSEC_DEBUG - DPRINTF("%s()\n", __FUNCTION__); -#endif - - for (i = 0; i < mlen; i++) { - if (q_map[i].dma_paddr & 3) - return (0); - if (i != (mlen - 1) && (q_map[i].dma_size & 3)) - return (0); - } - return (1); -} - - -#define N(a) (sizeof(a) / sizeof (a[0])) -static void -ubsec_setup_mackey(struct ubsec_session *ses, int algo, caddr_t key, int klen) -{ -#ifdef HMAC_HACK - MD5_CTX md5ctx; - SHA1_CTX sha1ctx; - int i; - -#ifdef UBSEC_DEBUG - DPRINTF("%s()\n", __FUNCTION__); -#endif - - for (i = 0; i < klen; i++) - key[i] ^= HMAC_IPAD_VAL; - - if (algo == CRYPTO_MD5_HMAC) { - MD5Init(&md5ctx); - MD5Update(&md5ctx, key, klen); - MD5Update(&md5ctx, hmac_ipad_buffer, MD5_HMAC_BLOCK_LEN - klen); - bcopy(md5ctx.md5_st8, ses->ses_hminner, sizeof(md5ctx.md5_st8)); - } else { - SHA1Init(&sha1ctx); - SHA1Update(&sha1ctx, key, klen); - SHA1Update(&sha1ctx, hmac_ipad_buffer, - SHA1_HMAC_BLOCK_LEN - klen); - bcopy(sha1ctx.h.b32, ses->ses_hminner, sizeof(sha1ctx.h.b32)); - } - - for (i = 0; i < klen; i++) - key[i] ^= (HMAC_IPAD_VAL ^ HMAC_OPAD_VAL); - - if (algo == CRYPTO_MD5_HMAC) { - MD5Init(&md5ctx); - MD5Update(&md5ctx, key, klen); - MD5Update(&md5ctx, hmac_opad_buffer, MD5_HMAC_BLOCK_LEN - klen); - bcopy(md5ctx.md5_st8, ses->ses_hmouter, sizeof(md5ctx.md5_st8)); - } else { - SHA1Init(&sha1ctx); - SHA1Update(&sha1ctx, key, klen); - SHA1Update(&sha1ctx, hmac_opad_buffer, - SHA1_HMAC_BLOCK_LEN - klen); - bcopy(sha1ctx.h.b32, ses->ses_hmouter, sizeof(sha1ctx.h.b32)); - } - - for (i = 0; i < klen; i++) - key[i] ^= HMAC_OPAD_VAL; - -#else /* HMAC_HACK */ - DPRINTF("md5/sha not implemented\n"); -#endif /* HMAC_HACK */ -} -#undef N - -static int -__devinit ubsec_ssb_probe(struct ssb_device *sdev, - const struct ssb_device_id *ent) -{ - int err; - -#ifdef UBSEC_DEBUG - DPRINTF("%s()\n", __FUNCTION__); -#endif - - err = ssb_bus_powerup(sdev->bus, 0); - if (err) { - dev_err(sdev->dev, "Failed to powerup the bus\n"); - goto err_out; - } - - err = request_irq(sdev->irq, (irq_handler_t)ubsec_ssb_isr, - IRQF_DISABLED | IRQF_SHARED, DRV_MODULE_NAME, sdev); - if (err) { - dev_err(sdev->dev, "Could not request irq\n"); - goto err_out_powerdown; - } - -#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34)) - err = dma_set_mask(sdev->dma_dev, DMA_BIT_MASK(32)) || - dma_set_coherent_mask(sdev->dma_dev, DMA_BIT_MASK(32)); -#else - err = ssb_dma_set_mask(sdev, DMA_32BIT_MASK); -#endif - if (err) { - dev_err(sdev->dev, - "Required 32BIT DMA mask unsupported by the system.\n"); - goto err_out_free_irq; - } - - printk(KERN_INFO "Sentry5(tm) ROBOGateway(tm) IPSec Core at IRQ %u\n", - sdev->irq); - - DPRINTF("Vendor: %x, core id: %x, revision: %x\n", - sdev->id.vendor, sdev->id.coreid, sdev->id.revision); - - ssb_device_enable(sdev, 0); - - if (ubsec_attach(sdev, ent, sdev->dev) != 0) - goto err_out_disable; - -#ifdef UBSEC_DEBUG - procdebug = create_proc_entry(DRV_MODULE_NAME, S_IRUSR, NULL); - if (procdebug) - { - procdebug->read_proc = proc_read; - procdebug->data = NULL; - } else - DPRINTF("Unable to create proc file.\n"); -#endif - - return 0; - -err_out_disable: - ssb_device_disable(sdev, 0); - -err_out_free_irq: - free_irq(sdev->irq, sdev); - -err_out_powerdown: - ssb_bus_may_powerdown(sdev->bus); - -err_out: - return err; -} - -static void __devexit ubsec_ssb_remove(struct ssb_device *sdev) { - - struct ubsec_softc *sc; - unsigned int ctrlflgs; - struct ubsec_dma *dmap; - u_int32_t i; - -#ifdef UBSEC_DEBUG - DPRINTF("%s()\n", __FUNCTION__); -#endif - - ctrlflgs = READ_REG_SDEV(sdev, BS_CTRL); - /* disable all IPSec Core interrupts globally */ - ctrlflgs ^= (BS_CTRL_MCR1INT | BS_CTRL_MCR2INT | - BS_CTRL_DMAERR); - WRITE_REG_SDEV(sdev, BS_CTRL, ctrlflgs); - - free_irq(sdev->irq, sdev); - - sc = (struct ubsec_softc *)ssb_get_drvdata(sdev); - - /* unregister all crypto algorithms */ - crypto_unregister_all(sc->sc_cid); - - /* Free queue / dma memory */ - for (i = 0; i < UBS_MAX_NQUEUE; i++) { - struct ubsec_q *q; - - q = sc->sc_queuea[i]; - if (q != NULL) - { - dmap = q->q_dma; - if (dmap != NULL) - { - ubsec_dma_free(sc, &dmap->d_alloc); - q->q_dma = NULL; - } - kfree(q); - } - sc->sc_queuea[i] = NULL; - } - - ssb_device_disable(sdev, 0); - ssb_bus_may_powerdown(sdev->bus); - ssb_set_drvdata(sdev, NULL); - -#ifdef UBSEC_DEBUG - if (procdebug) - remove_proc_entry(DRV_MODULE_NAME, NULL); -#endif - -} - - -int -ubsec_attach(struct ssb_device *sdev, const struct ssb_device_id *ent, - struct device *self) -{ - struct ubsec_softc *sc = NULL; - struct ubsec_dma *dmap; - u_int32_t i; - static int num_chips = 0; - -#ifdef UBSEC_DEBUG - DPRINTF("%s()\n", __FUNCTION__); -#endif - - sc = (struct ubsec_softc *) kmalloc(sizeof(*sc), GFP_KERNEL); - if (!sc) - return(-ENOMEM); - memset(sc, 0, sizeof(*sc)); - - sc->sc_dv = sdev->dev; - sc->sdev = sdev; - - spin_lock_init(&sc->sc_ringmtx); - - softc_device_init(sc, "ubsec_ssb", num_chips, ubsec_ssb_methods); - - /* Maybe someday there are boards with more than one chip available */ - if (num_chips < UBSEC_SSB_MAX_CHIPS) { - ubsec_chip_idx[device_get_unit(sc->sc_dev)] = sc; - num_chips++; - } - - ssb_set_drvdata(sdev, sc); - - BSD_SIMPLEQ_INIT(&sc->sc_queue); - BSD_SIMPLEQ_INIT(&sc->sc_qchip); - BSD_SIMPLEQ_INIT(&sc->sc_queue2); - BSD_SIMPLEQ_INIT(&sc->sc_qchip2); - BSD_SIMPLEQ_INIT(&sc->sc_q2free); - - sc->sc_statmask = BS_STAT_MCR1_DONE | BS_STAT_DMAERR; - - 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"); - return -1; - } - - BSD_SIMPLEQ_INIT(&sc->sc_freequeue); - dmap = sc->sc_dmaa; - for (i = 0; i < UBS_MAX_NQUEUE; i++, dmap++) { - struct ubsec_q *q; - - q = (struct ubsec_q *)kmalloc(sizeof(struct ubsec_q), GFP_KERNEL); - if (q == NULL) { - printf(": can't allocate queue buffers\n"); - break; - } - - if (ubsec_dma_malloc(sc, &dmap->d_alloc, sizeof(struct ubsec_dmachunk),0)) { - printf(": can't allocate dma buffers\n"); - kfree(q); - break; - } - dmap->d_dma = (struct ubsec_dmachunk *)dmap->d_alloc.dma_vaddr; - - q->q_dma = dmap; - sc->sc_queuea[i] = q; - - BSD_SIMPLEQ_INSERT_TAIL(&sc->sc_freequeue, q, q_next); - } - - /* - * Reset Broadcom chip - */ - ubsec_reset_board(sc); - - /* - * Init Broadcom chip - */ - ubsec_init_board(sc); - - /* supported crypto algorithms */ - crypto_register(sc->sc_cid, CRYPTO_3DES_CBC, 0, 0); - crypto_register(sc->sc_cid, CRYPTO_DES_CBC, 0, 0); - - if (sc->sc_flags & UBS_FLAGS_AES) { - crypto_register(sc->sc_cid, CRYPTO_AES_CBC, 0, 0); - printf(KERN_INFO DRV_MODULE_NAME ": DES 3DES AES128 AES192 AES256 MD5_HMAC SHA1_HMAC\n"); - } - else - printf(KERN_INFO DRV_MODULE_NAME ": DES 3DES MD5_HMAC SHA1_HMAC\n"); - - crypto_register(sc->sc_cid, CRYPTO_MD5_HMAC, 0, 0); - crypto_register(sc->sc_cid, CRYPTO_SHA1_HMAC, 0, 0); - - return 0; -} - -/* - * UBSEC Interrupt routine - */ -static irqreturn_t -ubsec_ssb_isr(int irq, void *arg, struct pt_regs *regs) -{ - struct ubsec_softc *sc = NULL; - volatile u_int32_t stat; - struct ubsec_q *q; - struct ubsec_dma *dmap; - int npkts = 0, i; - -#ifdef UBSEC_VERBOSE_DEBUG - DPRINTF("%s()\n", __FUNCTION__); -#endif - - sc = (struct ubsec_softc *)ssb_get_drvdata(arg); - - stat = READ_REG(sc, BS_STAT); - - stat &= sc->sc_statmask; - if (stat == 0) - return IRQ_NONE; - - WRITE_REG(sc, BS_STAT, stat); /* IACK */ - - /* - * Check to see if we have any packets waiting for us - */ - if ((stat & BS_STAT_MCR1_DONE)) { - while (!BSD_SIMPLEQ_EMPTY(&sc->sc_qchip)) { - q = BSD_SIMPLEQ_FIRST(&sc->sc_qchip); - dmap = q->q_dma; - - if ((dmap->d_dma->d_mcr.mcr_flags & htole16(UBS_MCR_DONE)) == 0) - { - DPRINTF("error while processing MCR. Flags = %x\n", dmap->d_dma->d_mcr.mcr_flags); - break; - } - - BSD_SIMPLEQ_REMOVE_HEAD(&sc->sc_qchip, q_next); - - npkts = q->q_nstacked_mcrs; - /* - * search for further sc_qchip ubsec_q's that share - * the same MCR, and complete them too, they must be - * at the top. - */ - for (i = 0; i < npkts; i++) { - if(q->q_stacked_mcr[i]) - ubsec_callback(sc, q->q_stacked_mcr[i]); - else - break; - } - ubsec_callback(sc, q); - } - - /* - * Don't send any more packet to chip if there has been - * a DMAERR. - */ - if (likely(!(stat & BS_STAT_DMAERR))) - ubsec_feed(sc); - else - DPRINTF("DMA error occurred. Stop feeding crypto chip.\n"); - } - - /* - * Check to see if we got any DMA Error - */ - if (stat & BS_STAT_DMAERR) { - volatile u_int32_t a = READ_REG(sc, BS_ERR); - - printf(KERN_ERR "%s: dmaerr %s@%08x\n", DRV_MODULE_NAME, - (a & BS_ERR_READ) ? "read" : "write", a & BS_ERR_ADDR); - - ubsecstats.hst_dmaerr++; - ubsec_totalreset(sc); - ubsec_feed(sc); - } - - return IRQ_HANDLED; -} - -/* - * ubsec_feed() - aggregate and post requests to chip - * It is assumed that the caller set splnet() - */ -void -ubsec_feed(struct ubsec_softc *sc) -{ -#ifdef UBSEC_VERBOSE_DEBUG - static int max; -#endif - struct ubsec_q *q, *q2; - int npkts, i; - void *v; - u_int32_t stat; - - npkts = sc->sc_nqueue; - if (npkts > UBS_MAX_AGGR) - npkts = UBS_MAX_AGGR; - if (npkts < 2) - goto feed1; - - stat = READ_REG(sc, BS_STAT); - - if (stat & (BS_STAT_MCR1_FULL | BS_STAT_DMAERR)) { - if(stat & BS_STAT_DMAERR) { - ubsec_totalreset(sc); - ubsecstats.hst_dmaerr++; - } - return; - } - -#ifdef UBSEC_VERBOSE_DEBUG - DPRINTF("merging %d records\n", npkts); - - /* XXX temporary aggregation statistics reporting code */ - if (max < npkts) { - max = npkts; - DPRINTF("%s: new max aggregate %d\n", DRV_MODULE_NAME, max); - } -#endif /* UBSEC_VERBOSE_DEBUG */ - - q = BSD_SIMPLEQ_FIRST(&sc->sc_queue); - BSD_SIMPLEQ_REMOVE_HEAD(&sc->sc_queue, q_next); - --sc->sc_nqueue; - -#if 0 - /* - * XXX - * We use dma_map_single() - no sync required! - */ - - bus_dmamap_sync(sc->sc_dmat, q->q_src_map, - 0, q->q_src_map->dm_mapsize, BUS_DMASYNC_PREWRITE); - if (q->q_dst_map != NULL) - bus_dmamap_sync(sc->sc_dmat, q->q_dst_map, - 0, q->q_dst_map->dm_mapsize, BUS_DMASYNC_PREREAD); -#endif - - q->q_nstacked_mcrs = npkts - 1; /* Number of packets stacked */ - - for (i = 0; i < q->q_nstacked_mcrs; i++) { - q2 = BSD_SIMPLEQ_FIRST(&sc->sc_queue); - -#if 0 - bus_dmamap_sync(sc->sc_dmat, q2->q_src_map, - 0, q2->q_src_map->dm_mapsize, BUS_DMASYNC_PREWRITE); - if (q2->q_dst_map != NULL) - bus_dmamap_sync(sc->sc_dmat, q2->q_dst_map, - 0, q2->q_dst_map->dm_mapsize, BUS_DMASYNC_PREREAD); -#endif - BSD_SIMPLEQ_REMOVE_HEAD(&sc->sc_queue, q_next); - --sc->sc_nqueue; - - v = ((char *)&q2->q_dma->d_dma->d_mcr) + sizeof(struct ubsec_mcr) - - sizeof(struct ubsec_mcr_add); - bcopy(v, &q->q_dma->d_dma->d_mcradd[i], sizeof(struct ubsec_mcr_add)); - q->q_stacked_mcr[i] = q2; - } - q->q_dma->d_dma->d_mcr.mcr_pkts = htole16(npkts); - BSD_SIMPLEQ_INSERT_TAIL(&sc->sc_qchip, q, q_next); -#if 0 - bus_dmamap_sync(sc->sc_dmat, q->q_dma->d_alloc.dma_map, - 0, q->q_dma->d_alloc.dma_map->dm_mapsize, - BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); -#endif - WRITE_REG(sc, BS_MCR1, q->q_dma->d_alloc.dma_paddr + - offsetof(struct ubsec_dmachunk, d_mcr)); -#ifdef UBSEC_VERBOSE_DEBUG - DPRINTF("feed (1): q->chip %p %08x %08x\n", q, - (u_int32_t)q->q_dma->d_alloc.dma_paddr, - (u_int32_t)(q->q_dma->d_alloc.dma_paddr + - offsetof(struct ubsec_dmachunk, d_mcr))); -#endif /* UBSEC_DEBUG */ - return; - -feed1: - while (!BSD_SIMPLEQ_EMPTY(&sc->sc_queue)) { - stat = READ_REG(sc, BS_STAT); - - if (stat & (BS_STAT_MCR1_FULL | BS_STAT_DMAERR)) { - if(stat & BS_STAT_DMAERR) { - ubsec_totalreset(sc); - ubsecstats.hst_dmaerr++; - } - break; - } - - q = BSD_SIMPLEQ_FIRST(&sc->sc_queue); - -#if 0 - bus_dmamap_sync(sc->sc_dmat, q->q_src_map, - 0, q->q_src_map->dm_mapsize, BUS_DMASYNC_PREWRITE); - if (q->q_dst_map != NULL) - bus_dmamap_sync(sc->sc_dmat, q->q_dst_map, - 0, q->q_dst_map->dm_mapsize, BUS_DMASYNC_PREREAD); - bus_dmamap_sync(sc->sc_dmat, q->q_dma->d_alloc.dma_map, - 0, q->q_dma->d_alloc.dma_map->dm_mapsize, - BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); -#endif - - WRITE_REG(sc, BS_MCR1, q->q_dma->d_alloc.dma_paddr + - offsetof(struct ubsec_dmachunk, d_mcr)); -#ifdef UBSEC_VERBOSE_DEBUG - DPRINTF("feed (2): q->chip %p %08x %08x\n", q, - (u_int32_t)q->q_dma->d_alloc.dma_paddr, - (u_int32_t)(q->q_dma->d_alloc.dma_paddr + - offsetof(struct ubsec_dmachunk, d_mcr))); -#endif /* UBSEC_DEBUG */ - BSD_SIMPLEQ_REMOVE_HEAD(&sc->sc_queue, q_next); - --sc->sc_nqueue; - BSD_SIMPLEQ_INSERT_TAIL(&sc->sc_qchip, q, q_next); - } -} - -/* - * 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 -ubsec_newsession(device_t dev, u_int32_t *sidp, struct cryptoini *cri) -{ - struct cryptoini *c, *encini = NULL, *macini = NULL; - struct ubsec_softc *sc = NULL; - struct ubsec_session *ses = NULL; - int sesn, i; - -#ifdef UBSEC_DEBUG - DPRINTF("%s()\n", __FUNCTION__); -#endif - - if (sidp == NULL || cri == NULL) - return (EINVAL); - - sc = device_get_softc(dev); - - if (sc == NULL) - return (EINVAL); - - for (c = cri; c != NULL; c = c->cri_next) { - if (c->cri_alg == CRYPTO_MD5_HMAC || - c->cri_alg == CRYPTO_SHA1_HMAC) { - if (macini) - return (EINVAL); - macini = c; - } else if (c->cri_alg == CRYPTO_DES_CBC || - c->cri_alg == CRYPTO_3DES_CBC || - c->cri_alg == CRYPTO_AES_CBC) { - if (encini) - return (EINVAL); - encini = c; - } else - return (EINVAL); - } - if (encini == NULL && macini == NULL) - return (EINVAL); - - if (sc->sc_sessions == NULL) { - ses = sc->sc_sessions = (struct ubsec_session *)kmalloc( - sizeof(struct ubsec_session), SLAB_ATOMIC); - if (ses == NULL) - return (ENOMEM); - memset(ses, 0, sizeof(struct ubsec_session)); - sesn = 0; - sc->sc_nsessions = 1; - } else { - for (sesn = 0; sesn < sc->sc_nsessions; sesn++) { - if (sc->sc_sessions[sesn].ses_used == 0) { - ses = &sc->sc_sessions[sesn]; - break; - } - } - - if (ses == NULL) { - sesn = sc->sc_nsessions; - ses = (struct ubsec_session *)kmalloc((sesn + 1) * - sizeof(struct ubsec_session), SLAB_ATOMIC); - if (ses == NULL) - return (ENOMEM); - memset(ses, 0, (sesn + 1) * sizeof(struct ubsec_session)); - bcopy(sc->sc_sessions, ses, sesn * - sizeof(struct ubsec_session)); - bzero(sc->sc_sessions, sesn * - sizeof(struct ubsec_session)); - kfree(sc->sc_sessions); - sc->sc_sessions = ses; - ses = &sc->sc_sessions[sesn]; - sc->sc_nsessions++; - } - } - - bzero(ses, sizeof(struct ubsec_session)); - ses->ses_used = 1; - if (encini) { - /* get an IV */ - /* XXX may read fewer than requested */ - read_random(ses->ses_iv, sizeof(ses->ses_iv)); - - /* Go ahead and compute key in ubsec's byte order */ - if (encini->cri_alg == CRYPTO_DES_CBC) { - /* DES uses the same key three times: - * 1st encrypt -> 2nd decrypt -> 3nd encrypt */ - bcopy(encini->cri_key, &ses->ses_key[0], 8); - bcopy(encini->cri_key, &ses->ses_key[2], 8); - bcopy(encini->cri_key, &ses->ses_key[4], 8); - ses->ses_keysize = 192; /* Fake! Actually its only 64bits .. - oh no it is even less: 54bits. */ - } else if(encini->cri_alg == CRYPTO_3DES_CBC) { - bcopy(encini->cri_key, ses->ses_key, 24); - ses->ses_keysize = 192; - } else if(encini->cri_alg == CRYPTO_AES_CBC) { - ses->ses_keysize = encini->cri_klen; - - if (ses->ses_keysize != 128 && - ses->ses_keysize != 192 && - ses->ses_keysize != 256) - { - DPRINTF("unsupported AES key size: %d\n", ses->ses_keysize); - return (EINVAL); - } - bcopy(encini->cri_key, ses->ses_key, (ses->ses_keysize / 8)); - } - - /* Hardware requires the keys in little endian byte order */ - for (i=0; i < (ses->ses_keysize / 32); i++) - SWAP32(ses->ses_key[i]); - } - - if (macini) { - ses->ses_mlen = macini->cri_mlen; - - if (ses->ses_mlen == 0 || - ses->ses_mlen > SHA1_HASH_LEN) { - - if (macini->cri_alg == CRYPTO_MD5_HMAC || - macini->cri_alg == CRYPTO_SHA1_HMAC) - { - ses->ses_mlen = DEFAULT_HMAC_LEN; - } else - { - /* - * Reserved for future usage. MD5/SHA1 calculations have - * different hash sizes. - */ - printk(KERN_ERR DRV_MODULE_NAME ": unsupported hash operation with mac/hash len: %d\n", ses->ses_mlen); - return (EINVAL); - } - - } - - if (macini->cri_key != NULL) { - ubsec_setup_mackey(ses, macini->cri_alg, macini->cri_key, - macini->cri_klen / 8); - } - } - - *sidp = UBSEC_SID(device_get_unit(sc->sc_dev), sesn); - return (0); -} - -/* - * Deallocate a session. - */ -static int -ubsec_freesession(device_t dev, u_int64_t tid) -{ - struct ubsec_softc *sc = device_get_softc(dev); - int session; - u_int32_t sid = ((u_int32_t)tid) & 0xffffffff; - -#ifdef UBSEC_DEBUG - DPRINTF("%s()\n", __FUNCTION__); -#endif - - if (sc == NULL) - return (EINVAL); - - session = UBSEC_SESSION(sid); - if (session < sc->sc_nsessions) { - bzero(&sc->sc_sessions[session], sizeof(sc->sc_sessions[session])); - return (0); - } else - return (EINVAL); -} - -static int -ubsec_process(device_t dev, struct cryptop *crp, int hint) -{ - struct ubsec_q *q = NULL; - int err = 0, i, j, nicealign; - struct ubsec_softc *sc = device_get_softc(dev); - struct cryptodesc *crd1, *crd2, *maccrd, *enccrd; - int encoffset = 0, macoffset = 0, cpskip, cpoffset; - int sskip, dskip, stheend, dtheend, ivsize = 8; - int16_t coffset; - struct ubsec_session *ses; - struct ubsec_generic_ctx ctx; - struct ubsec_dma *dmap = NULL; - unsigned long flags; - -#ifdef UBSEC_DEBUG - DPRINTF("%s()\n", __FUNCTION__); -#endif - - if (unlikely(crp == NULL || crp->crp_callback == NULL)) { - ubsecstats.hst_invalid++; - return (EINVAL); - } - - if (unlikely(sc == NULL)) - return (EINVAL); - -#ifdef UBSEC_VERBOSE_DEBUG - DPRINTF("spin_lock_irqsave\n"); -#endif - spin_lock_irqsave(&sc->sc_ringmtx, flags); - //spin_lock_irq(&sc->sc_ringmtx); - - if (BSD_SIMPLEQ_EMPTY(&sc->sc_freequeue)) { - ubsecstats.hst_queuefull++; -#ifdef UBSEC_VERBOSE_DEBUG - DPRINTF("spin_unlock_irqrestore\n"); -#endif - spin_unlock_irqrestore(&sc->sc_ringmtx, flags); - //spin_unlock_irq(&sc->sc_ringmtx); - err = ENOMEM; - goto errout2; - } - - q = BSD_SIMPLEQ_FIRST(&sc->sc_freequeue); - BSD_SIMPLEQ_REMOVE_HEAD(&sc->sc_freequeue, q_next); -#ifdef UBSEC_VERBOSE_DEBUG - DPRINTF("spin_unlock_irqrestore\n"); -#endif - spin_unlock_irqrestore(&sc->sc_ringmtx, flags); - //spin_unlock_irq(&sc->sc_ringmtx); - - dmap = q->q_dma; /* Save dma pointer */ - bzero(q, sizeof(struct ubsec_q)); - bzero(&ctx, sizeof(ctx)); - - q->q_sesn = UBSEC_SESSION(crp->crp_sid); - q->q_dma = dmap; - ses = &sc->sc_sessions[q->q_sesn]; - - if (crp->crp_flags & CRYPTO_F_SKBUF) { - q->q_src_m = (struct sk_buff *)crp->crp_buf; - q->q_dst_m = (struct sk_buff *)crp->crp_buf; - } else if (crp->crp_flags & CRYPTO_F_IOV) { - q->q_src_io = (struct uio *)crp->crp_buf; - q->q_dst_io = (struct uio *)crp->crp_buf; - } else { - err = EINVAL; - goto errout; /* XXX we don't handle contiguous blocks! */ - } - - bzero(&dmap->d_dma->d_mcr, sizeof(struct ubsec_mcr)); - - dmap->d_dma->d_mcr.mcr_pkts = htole16(1); - dmap->d_dma->d_mcr.mcr_flags = 0; - q->q_crp = crp; - - crd1 = crp->crp_desc; - if (crd1 == NULL) { - err = EINVAL; - goto errout; - } - crd2 = crd1->crd_next; - - if (crd2 == NULL) { - if (crd1->crd_alg == CRYPTO_MD5_HMAC || - crd1->crd_alg == CRYPTO_SHA1_HMAC) { - maccrd = crd1; - enccrd = NULL; - } else if (crd1->crd_alg == CRYPTO_DES_CBC || - crd1->crd_alg == CRYPTO_3DES_CBC || - crd1->crd_alg == CRYPTO_AES_CBC) { - maccrd = NULL; - enccrd = crd1; - } else { - err = EINVAL; - goto errout; - } - } else { - if ((crd1->crd_alg == CRYPTO_MD5_HMAC || - crd1->crd_alg == CRYPTO_SHA1_HMAC) && - (crd2->crd_alg == CRYPTO_DES_CBC || - crd2->crd_alg == CRYPTO_3DES_CBC || - crd2->crd_alg == CRYPTO_AES_CBC) && - ((crd2->crd_flags & CRD_F_ENCRYPT) == 0)) { - maccrd = crd1; - enccrd = crd2; - } else if ((crd1->crd_alg == CRYPTO_DES_CBC || - crd1->crd_alg == CRYPTO_3DES_CBC || - crd1->crd_alg == CRYPTO_AES_CBC) && - (crd2->crd_alg == CRYPTO_MD5_HMAC || - crd2->crd_alg == CRYPTO_SHA1_HMAC) && - (crd1->crd_flags & CRD_F_ENCRYPT)) { - enccrd = crd1; - maccrd = crd2; - } else { - /* - * We cannot order the ubsec as requested - */ - printk(KERN_ERR DRV_MODULE_NAME ": got wrong algorithm/signature order.\n"); - err = EINVAL; - goto errout; - } - } - - /* Encryption/Decryption requested */ - if (enccrd) { - encoffset = enccrd->crd_skip; - - if (enccrd->crd_alg == CRYPTO_DES_CBC || - enccrd->crd_alg == CRYPTO_3DES_CBC) - { - ctx.pc_flags |= htole16(UBS_PKTCTX_ENC_3DES); - ctx.pc_type = htole16(UBS_PKTCTX_TYPE_IPSEC_DES); - ivsize = 8; /* [3]DES uses 64bit IVs */ - } else { - ctx.pc_flags |= htole16(UBS_PKTCTX_ENC_AES); - ctx.pc_type = htole16(UBS_PKTCTX_TYPE_IPSEC_AES); - ivsize = 16; /* AES uses 128bit IVs / [3]DES 64bit IVs */ - - switch(ses->ses_keysize) - { - case 128: - ctx.pc_flags |= htole16(UBS_PKTCTX_AES128); - break; - case 192: - ctx.pc_flags |= htole16(UBS_PKTCTX_AES192); - break; - case 256: - ctx.pc_flags |= htole16(UBS_PKTCTX_AES256); - break; - default: - DPRINTF("invalid AES key size: %d\n", ses->ses_keysize); - err = EINVAL; - goto errout; - } - } - - if (enccrd->crd_flags & CRD_F_ENCRYPT) { - /* Direction: Outbound */ - - q->q_flags |= UBSEC_QFLAGS_COPYOUTIV; - - if (enccrd->crd_flags & CRD_F_IV_EXPLICIT) { - bcopy(enccrd->crd_iv, ctx.pc_iv, ivsize); - } else { - for(i=0; i < (ivsize / 4); i++) - ctx.pc_iv[i] = ses->ses_iv[i]; - } - - /* If there is no IV in the buffer -> copy it here */ - if ((enccrd->crd_flags & CRD_F_IV_PRESENT) == 0) { - if (crp->crp_flags & CRYPTO_F_SKBUF) - /* - m_copyback(q->q_src_m, - enccrd->crd_inject, - 8, ctx.pc_iv); - */ - crypto_copyback(crp->crp_flags, (caddr_t)q->q_src_m, - enccrd->crd_inject, ivsize, (caddr_t)ctx.pc_iv); - else if (crp->crp_flags & CRYPTO_F_IOV) - /* - cuio_copyback(q->q_src_io, - enccrd->crd_inject, - 8, ctx.pc_iv); - */ - crypto_copyback(crp->crp_flags, (caddr_t)q->q_src_io, - enccrd->crd_inject, ivsize, (caddr_t)ctx.pc_iv); - } - } else { - /* Direction: Inbound */ - - ctx.pc_flags |= htole16(UBS_PKTCTX_INBOUND); - - if (enccrd->crd_flags & CRD_F_IV_EXPLICIT) - bcopy(enccrd->crd_iv, ctx.pc_iv, ivsize); - else if (crp->crp_flags & CRYPTO_F_SKBUF) - /* - m_copydata(q->q_src_m, enccrd->crd_inject, - 8, (caddr_t)ctx.pc_iv); - */ - crypto_copydata(crp->crp_flags, (caddr_t)q->q_src_m, - enccrd->crd_inject, ivsize, - (caddr_t)ctx.pc_iv); - else if (crp->crp_flags & CRYPTO_F_IOV) - /* - cuio_copydata(q->q_src_io, - enccrd->crd_inject, 8, - (caddr_t)ctx.pc_iv); - */ - crypto_copydata(crp->crp_flags, (caddr_t)q->q_src_io, - enccrd->crd_inject, ivsize, - (caddr_t)ctx.pc_iv); - - } - - /* Even though key & IV sizes differ from cipher to cipher - * copy / swap the full array lengths. Let the compiler unroll - * the loop to increase the cpu pipeline performance... */ - for(i=0; i < 8; i++) - ctx.pc_key[i] = ses->ses_key[i]; - for(i=0; i < 4; i++) - SWAP32(ctx.pc_iv[i]); - } - - /* Authentication requested */ - if (maccrd) { - macoffset = maccrd->crd_skip; - - if (maccrd->crd_alg == CRYPTO_MD5_HMAC) - ctx.pc_flags |= htole16(UBS_PKTCTX_AUTH_MD5); - else - ctx.pc_flags |= htole16(UBS_PKTCTX_AUTH_SHA1); - - for (i = 0; i < 5; i++) { - ctx.pc_hminner[i] = ses->ses_hminner[i]; - ctx.pc_hmouter[i] = ses->ses_hmouter[i]; - - HTOLE32(ctx.pc_hminner[i]); - HTOLE32(ctx.pc_hmouter[i]); - } - } - - if (enccrd && maccrd) { - /* - * ubsec cannot handle packets where the end of encryption - * and authentication are not the same, or where the - * encrypted part begins before the authenticated part. - */ - if (((encoffset + enccrd->crd_len) != - (macoffset + maccrd->crd_len)) || - (enccrd->crd_skip < maccrd->crd_skip)) { - err = EINVAL; - goto errout; - } - sskip = maccrd->crd_skip; - cpskip = dskip = enccrd->crd_skip; - stheend = maccrd->crd_len; - dtheend = enccrd->crd_len; - coffset = enccrd->crd_skip - maccrd->crd_skip; - cpoffset = cpskip + dtheend; -#ifdef UBSEC_DEBUG - DPRINTF("mac: skip %d, len %d, inject %d\n", - maccrd->crd_skip, maccrd->crd_len, maccrd->crd_inject); - DPRINTF("enc: skip %d, len %d, inject %d\n", - enccrd->crd_skip, enccrd->crd_len, enccrd->crd_inject); - DPRINTF("src: skip %d, len %d\n", sskip, stheend); - DPRINTF("dst: skip %d, len %d\n", dskip, dtheend); - DPRINTF("ubs: coffset %d, pktlen %d, cpskip %d, cpoffset %d\n", - coffset, stheend, cpskip, cpoffset); -#endif - } else { - cpskip = dskip = sskip = macoffset + encoffset; - dtheend = stheend = (enccrd)?enccrd->crd_len:maccrd->crd_len; - cpoffset = cpskip + dtheend; - coffset = 0; - } - ctx.pc_offset = htole16(coffset >> 2); - -#if 0 - if (bus_dmamap_create(sc->sc_dmat, 0xfff0, UBS_MAX_SCATTER, - 0xfff0, 0, BUS_DMA_NOWAIT, &q->q_src_map) != 0) { - err = ENOMEM; - goto errout; - } -#endif - - if (crp->crp_flags & CRYPTO_F_SKBUF) { -#if 0 - if (bus_dmamap_load_mbuf(sc->sc_dmat, q->q_src_map, - q->q_src_m, BUS_DMA_NOWAIT) != 0) { - bus_dmamap_destroy(sc->sc_dmat, q->q_src_map); - q->q_src_map = NULL; - err = ENOMEM; - goto errout; - } -#endif - err = dma_map_skb(sc, q->q_src_map, q->q_src_m, &q->q_src_len); - if (unlikely(err != 0)) - goto errout; - - } else if (crp->crp_flags & CRYPTO_F_IOV) { -#if 0 - if (bus_dmamap_load_uio(sc->sc_dmat, q->q_src_map, - q->q_src_io, BUS_DMA_NOWAIT) != 0) { - bus_dmamap_destroy(sc->sc_dmat, q->q_src_map); - q->q_src_map = NULL; - err = ENOMEM; - goto errout; - } -#endif - err = dma_map_uio(sc, q->q_src_map, q->q_src_io, &q->q_src_len); - if (unlikely(err != 0)) - goto errout; - } - - /* - * Check alignment - */ - nicealign = ubsec_dmamap_aligned(sc, q->q_src_map, q->q_src_len); - - dmap->d_dma->d_mcr.mcr_pktlen = htole16(stheend); - -#ifdef UBSEC_DEBUG - DPRINTF("src skip: %d\n", sskip); -#endif - for (i = j = 0; i < q->q_src_len; i++) { - struct ubsec_pktbuf *pb; - size_t packl = q->q_src_map[i].dma_size; - dma_addr_t packp = q->q_src_map[i].dma_paddr; - - if (sskip >= packl) { - sskip -= packl; - continue; - } - - packl -= sskip; - packp += sskip; - sskip = 0; - - /* maximum fragment size is 0xfffc */ - if (packl > 0xfffc) { - DPRINTF("Error: fragment size is bigger than 0xfffc.\n"); - err = EIO; - goto errout; - } - - if (j == 0) - pb = &dmap->d_dma->d_mcr.mcr_ipktbuf; - else - pb = &dmap->d_dma->d_sbuf[j - 1]; - - pb->pb_addr = htole32(packp); - - if (stheend) { - if (packl > stheend) { - pb->pb_len = htole32(stheend); - stheend = 0; - } else { - pb->pb_len = htole32(packl); - stheend -= packl; - } - } else - pb->pb_len = htole32(packl); - - if ((i + 1) == q->q_src_len) - pb->pb_next = 0; - else - pb->pb_next = htole32(dmap->d_alloc.dma_paddr + - offsetof(struct ubsec_dmachunk, d_sbuf[j])); - j++; - } - - if (enccrd == NULL && maccrd != NULL) { - /* Authentication only */ - dmap->d_dma->d_mcr.mcr_opktbuf.pb_addr = 0; - dmap->d_dma->d_mcr.mcr_opktbuf.pb_len = 0; - dmap->d_dma->d_mcr.mcr_opktbuf.pb_next = - htole32(dmap->d_alloc.dma_paddr + - offsetof(struct ubsec_dmachunk, d_macbuf[0])); -#ifdef UBSEC_DEBUG - DPRINTF("opkt: %x %x %x\n", - dmap->d_dma->d_mcr.mcr_opktbuf.pb_addr, - dmap->d_dma->d_mcr.mcr_opktbuf.pb_len, - dmap->d_dma->d_mcr.mcr_opktbuf.pb_next); -#endif - } else { - if (crp->crp_flags & CRYPTO_F_IOV) { - if (!nicealign) { - err = EINVAL; - goto errout; - } -#if 0 - if (bus_dmamap_create(sc->sc_dmat, 0xfff0, - UBS_MAX_SCATTER, 0xfff0, 0, BUS_DMA_NOWAIT, - &q->q_dst_map) != 0) { - err = ENOMEM; - goto errout; - } - if (bus_dmamap_load_uio(sc->sc_dmat, q->q_dst_map, - q->q_dst_io, BUS_DMA_NOWAIT) != 0) { - bus_dmamap_destroy(sc->sc_dmat, q->q_dst_map); - q->q_dst_map = NULL; - goto errout; - } -#endif - - /* HW shall copy the result into the source memory */ - for(i = 0; i < q->q_src_len; i++) - q->q_dst_map[i] = q->q_src_map[i]; - - q->q_dst_len = q->q_src_len; - q->q_has_dst = 0; - - } else if (crp->crp_flags & CRYPTO_F_SKBUF) { - if (nicealign) { - - /* HW shall copy the result into the source memory */ - q->q_dst_m = q->q_src_m; - for(i = 0; i < q->q_src_len; i++) - q->q_dst_map[i] = q->q_src_map[i]; - - q->q_dst_len = q->q_src_len; - q->q_has_dst = 0; - - } else { -#ifdef NOTYET - int totlen, len; - struct sk_buff *m, *top, **mp; - - totlen = q->q_src_map->dm_mapsize; - if (q->q_src_m->m_flags & M_PKTHDR) { - len = MHLEN; - MGETHDR(m, M_DONTWAIT, MT_DATA); - } else { - len = MLEN; - MGET(m, M_DONTWAIT, MT_DATA); - } - if (m == NULL) { - err = ENOMEM; - goto errout; - } - if (len == MHLEN) - M_DUP_PKTHDR(m, q->q_src_m); - if (totlen >= MINCLSIZE) { - MCLGET(m, M_DONTWAIT); - if (m->m_flags & M_EXT) - len = MCLBYTES; - } - m->m_len = len; - top = NULL; - mp = ⊤ - - while (totlen > 0) { - if (top) { - MGET(m, M_DONTWAIT, MT_DATA); - if (m == NULL) { - m_freem(top); - err = ENOMEM; - goto errout; - } - len = MLEN; - } - if (top && totlen >= MINCLSIZE) { - MCLGET(m, M_DONTWAIT); - if (m->m_flags & M_EXT) - len = MCLBYTES; - } - m->m_len = len = min(totlen, len); - totlen -= len; - *mp = m; - mp = &m->m_next; - } - q->q_dst_m = top; - ubsec_mcopy(q->q_src_m, q->q_dst_m, - cpskip, cpoffset); - if (bus_dmamap_create(sc->sc_dmat, 0xfff0, - UBS_MAX_SCATTER, 0xfff0, 0, BUS_DMA_NOWAIT, - &q->q_dst_map) != 0) { - err = ENOMEM; - goto errout; - } - if (bus_dmamap_load_mbuf(sc->sc_dmat, - q->q_dst_map, q->q_dst_m, - BUS_DMA_NOWAIT) != 0) { - bus_dmamap_destroy(sc->sc_dmat, - q->q_dst_map); - q->q_dst_map = NULL; - err = ENOMEM; - goto errout; - } -#else - device_printf(sc->sc_dev, - "%s,%d: CRYPTO_F_SKBUF unaligned not implemented\n", - __FILE__, __LINE__); - err = EINVAL; - goto errout; -#endif - } - } else { - err = EINVAL; - goto errout; - } - -#ifdef UBSEC_DEBUG - DPRINTF("dst skip: %d\n", dskip); -#endif - for (i = j = 0; i < q->q_dst_len; i++) { - struct ubsec_pktbuf *pb; - size_t packl = q->q_dst_map[i].dma_size; - dma_addr_t packp = q->q_dst_map[i].dma_paddr; - - if (dskip >= packl) { - dskip -= packl; - continue; - } - - packl -= dskip; - packp += dskip; - dskip = 0; - - if (packl > 0xfffc) { - DPRINTF("Error: fragment size is bigger than 0xfffc.\n"); - err = EIO; - goto errout; - } - - if (j == 0) - pb = &dmap->d_dma->d_mcr.mcr_opktbuf; - else - pb = &dmap->d_dma->d_dbuf[j - 1]; - - pb->pb_addr = htole32(packp); - - if (dtheend) { - if (packl > dtheend) { - pb->pb_len = htole32(dtheend); - dtheend = 0; - } else { - pb->pb_len = htole32(packl); - dtheend -= packl; - } - } else - pb->pb_len = htole32(packl); - - if ((i + 1) == q->q_dst_len) { - if (maccrd) - /* Authentication: - * The last fragment of the output buffer - * contains the HMAC. */ - pb->pb_next = htole32(dmap->d_alloc.dma_paddr + - offsetof(struct ubsec_dmachunk, d_macbuf[0])); - else - pb->pb_next = 0; - } else - pb->pb_next = htole32(dmap->d_alloc.dma_paddr + - offsetof(struct ubsec_dmachunk, d_dbuf[j])); - j++; - } - } - - dmap->d_dma->d_mcr.mcr_cmdctxp = htole32(dmap->d_alloc.dma_paddr + - offsetof(struct ubsec_dmachunk, d_ctx)); - - if (sc->sc_flags & UBS_FLAGS_LONGCTX) { - /* new Broadcom cards with dynamic long command context structure */ - - if (enccrd != NULL && - enccrd->crd_alg == CRYPTO_AES_CBC) - { - struct ubsec_pktctx_aes128 *ctxaes128; - struct ubsec_pktctx_aes192 *ctxaes192; - struct ubsec_pktctx_aes256 *ctxaes256; - - switch(ses->ses_keysize) - { - /* AES 128bit */ - case 128: - ctxaes128 = (struct ubsec_pktctx_aes128 *) - (dmap->d_alloc.dma_vaddr + - offsetof(struct ubsec_dmachunk, d_ctx)); - - ctxaes128->pc_len = htole16(sizeof(struct ubsec_pktctx_aes128)); - ctxaes128->pc_type = ctx.pc_type; - ctxaes128->pc_flags = ctx.pc_flags; - ctxaes128->pc_offset = ctx.pc_offset; - for (i = 0; i < 4; i++) - ctxaes128->pc_aeskey[i] = ctx.pc_key[i]; - for (i = 0; i < 5; i++) - ctxaes128->pc_hminner[i] = ctx.pc_hminner[i]; - for (i = 0; i < 5; i++) - ctxaes128->pc_hmouter[i] = ctx.pc_hmouter[i]; - for (i = 0; i < 4; i++) - ctxaes128->pc_iv[i] = ctx.pc_iv[i]; - break; - - /* AES 192bit */ - case 192: - ctxaes192 = (struct ubsec_pktctx_aes192 *) - (dmap->d_alloc.dma_vaddr + - offsetof(struct ubsec_dmachunk, d_ctx)); - - ctxaes192->pc_len = htole16(sizeof(struct ubsec_pktctx_aes192)); - ctxaes192->pc_type = ctx.pc_type; - ctxaes192->pc_flags = ctx.pc_flags; - ctxaes192->pc_offset = ctx.pc_offset; - for (i = 0; i < 6; i++) - ctxaes192->pc_aeskey[i] = ctx.pc_key[i]; - for (i = 0; i < 5; i++) - ctxaes192->pc_hminner[i] = ctx.pc_hminner[i]; - for (i = 0; i < 5; i++) - ctxaes192->pc_hmouter[i] = ctx.pc_hmouter[i]; - for (i = 0; i < 4; i++) - ctxaes192->pc_iv[i] = ctx.pc_iv[i]; - break; - - /* AES 256bit */ - case 256: - ctxaes256 = (struct ubsec_pktctx_aes256 *) - (dmap->d_alloc.dma_vaddr + - offsetof(struct ubsec_dmachunk, d_ctx)); - - ctxaes256->pc_len = htole16(sizeof(struct ubsec_pktctx_aes256)); - ctxaes256->pc_type = ctx.pc_type; - ctxaes256->pc_flags = ctx.pc_flags; - ctxaes256->pc_offset = ctx.pc_offset; - for (i = 0; i < 8; i++) - ctxaes256->pc_aeskey[i] = ctx.pc_key[i]; - for (i = 0; i < 5; i++) - ctxaes256->pc_hminner[i] = ctx.pc_hminner[i]; - for (i = 0; i < 5; i++) - ctxaes256->pc_hmouter[i] = ctx.pc_hmouter[i]; - for (i = 0; i < 4; i++) - ctxaes256->pc_iv[i] = ctx.pc_iv[i]; - break; - - } - } else { - /* - * [3]DES / MD5_HMAC / SHA1_HMAC - * - * MD5_HMAC / SHA1_HMAC can use the IPSEC 3DES operation without - * encryption. - */ - struct ubsec_pktctx_des *ctxdes; - - ctxdes = (struct ubsec_pktctx_des *)(dmap->d_alloc.dma_vaddr + - offsetof(struct ubsec_dmachunk, d_ctx)); - - ctxdes->pc_len = htole16(sizeof(struct ubsec_pktctx_des)); - ctxdes->pc_type = ctx.pc_type; - ctxdes->pc_flags = ctx.pc_flags; - ctxdes->pc_offset = ctx.pc_offset; - for (i = 0; i < 6; i++) - ctxdes->pc_deskey[i] = ctx.pc_key[i]; - for (i = 0; i < 5; i++) - ctxdes->pc_hminner[i] = ctx.pc_hminner[i]; - for (i = 0; i < 5; i++) - ctxdes->pc_hmouter[i] = ctx.pc_hmouter[i]; - ctxdes->pc_iv[0] = ctx.pc_iv[0]; - ctxdes->pc_iv[1] = ctx.pc_iv[1]; - } - } else - { - /* old Broadcom card with fixed small command context structure */ - - /* - * [3]DES / MD5_HMAC / SHA1_HMAC - */ - struct ubsec_pktctx *ctxs; - - ctxs = (struct ubsec_pktctx *)(dmap->d_alloc.dma_vaddr + - offsetof(struct ubsec_dmachunk, d_ctx)); - - /* transform generic context into small context */ - for (i = 0; i < 6; i++) - ctxs->pc_deskey[i] = ctx.pc_key[i]; - for (i = 0; i < 5; i++) - ctxs->pc_hminner[i] = ctx.pc_hminner[i]; - for (i = 0; i < 5; i++) - ctxs->pc_hmouter[i] = ctx.pc_hmouter[i]; - ctxs->pc_iv[0] = ctx.pc_iv[0]; - ctxs->pc_iv[1] = ctx.pc_iv[1]; - ctxs->pc_flags = ctx.pc_flags; - ctxs->pc_offset = ctx.pc_offset; - } - -#ifdef UBSEC_VERBOSE_DEBUG - DPRINTF("spin_lock_irqsave\n"); -#endif - spin_lock_irqsave(&sc->sc_ringmtx, flags); - //spin_lock_irq(&sc->sc_ringmtx); - - BSD_SIMPLEQ_INSERT_TAIL(&sc->sc_queue, q, q_next); - sc->sc_nqueue++; - ubsecstats.hst_ipackets++; - ubsecstats.hst_ibytes += stheend; - ubsec_feed(sc); - -#ifdef UBSEC_VERBOSE_DEBUG - DPRINTF("spin_unlock_irqrestore\n"); -#endif - spin_unlock_irqrestore(&sc->sc_ringmtx, flags); - //spin_unlock_irq(&sc->sc_ringmtx); - - return (0); - -errout: - if (q != NULL) { -#ifdef NOTYET - if ((q->q_dst_m != NULL) && (q->q_src_m != q->q_dst_m)) - m_freem(q->q_dst_m); -#endif - - if ((q->q_has_dst == 1) && q->q_dst_len > 0) { -#if 0 - bus_dmamap_unload(sc->sc_dmat, q->q_dst_map); - bus_dmamap_destroy(sc->sc_dmat, q->q_dst_map); -#endif - dma_unmap(sc, q->q_dst_map, q->q_dst_len); - } - if (q->q_src_len > 0) { -#if 0 - bus_dmamap_unload(sc->sc_dmat, q->q_src_map); - bus_dmamap_destroy(sc->sc_dmat, q->q_src_map); -#endif - dma_unmap(sc, q->q_src_map, q->q_src_len); - } - -#ifdef UBSEC_VERBOSE_DEBUG - DPRINTF("spin_lock_irqsave\n"); -#endif - spin_lock_irqsave(&sc->sc_ringmtx, flags); - //spin_lock_irq(&sc->sc_ringmtx); - - BSD_SIMPLEQ_INSERT_TAIL(&sc->sc_freequeue, q, q_next); - -#ifdef UBSEC_VERBOSE_DEBUG - DPRINTF("spin_unlock_irqrestore\n"); -#endif - spin_unlock_irqrestore(&sc->sc_ringmtx, flags); - //spin_unlock_irq(&sc->sc_ringmtx); - - } - if (err == EINVAL) - ubsecstats.hst_invalid++; - else - ubsecstats.hst_nomem++; -errout2: - crp->crp_etype = err; - crypto_done(crp); - -#ifdef UBSEC_DEBUG - DPRINTF("%s() err = %x\n", __FUNCTION__, err); -#endif - - return (0); -} - -void -ubsec_callback(struct ubsec_softc *sc, struct ubsec_q *q) -{ - struct cryptop *crp = (struct cryptop *)q->q_crp; - struct cryptodesc *crd; - struct ubsec_dma *dmap = q->q_dma; - int ivsize = 8; - -#ifdef UBSEC_DEBUG - DPRINTF("%s()\n", __FUNCTION__); -#endif - - ubsecstats.hst_opackets++; - ubsecstats.hst_obytes += dmap->d_alloc.dma_size; - -#if 0 - bus_dmamap_sync(sc->sc_dmat, dmap->d_alloc.dma_map, 0, - dmap->d_alloc.dma_map->dm_mapsize, - BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE); - if (q->q_dst_map != NULL && q->q_dst_map != q->q_src_map) { - bus_dmamap_sync(sc->sc_dmat, q->q_dst_map, - 0, q->q_dst_map->dm_mapsize, BUS_DMASYNC_POSTREAD); - bus_dmamap_unload(sc->sc_dmat, q->q_dst_map); - bus_dmamap_destroy(sc->sc_dmat, q->q_dst_map); - } - bus_dmamap_sync(sc->sc_dmat, q->q_src_map, - 0, q->q_src_map->dm_mapsize, BUS_DMASYNC_POSTWRITE); - bus_dmamap_unload(sc->sc_dmat, q->q_src_map); - bus_dmamap_destroy(sc->sc_dmat, q->q_src_map); -#endif - - if ((q->q_has_dst == 1) && q->q_dst_len > 0) - dma_unmap(sc, q->q_dst_map, q->q_dst_len); - - dma_unmap(sc, q->q_src_map, q->q_src_len); - -#ifdef NOTYET - if ((crp->crp_flags & CRYPTO_F_SKBUF) && (q->q_src_m != q->q_dst_m)) { - m_freem(q->q_src_m); - crp->crp_buf = (caddr_t)q->q_dst_m; - } -#endif - - /* copy out IV for future use */ - if (q->q_flags & UBSEC_QFLAGS_COPYOUTIV) { - for (crd = crp->crp_desc; crd; crd = crd->crd_next) { - if (crd->crd_alg != CRYPTO_DES_CBC && - crd->crd_alg != CRYPTO_3DES_CBC && - crd->crd_alg != CRYPTO_AES_CBC) - continue; - - if (crd->crd_alg == CRYPTO_AES_CBC) - ivsize = 16; - else - ivsize = 8; - - if (crp->crp_flags & CRYPTO_F_SKBUF) -#if 0 - m_copydata((struct sk_buff *)crp->crp_buf, - crd->crd_skip + crd->crd_len - 8, 8, - (caddr_t)sc->sc_sessions[q->q_sesn].ses_iv); -#endif - crypto_copydata(crp->crp_flags, (caddr_t)crp->crp_buf, - crd->crd_skip + crd->crd_len - ivsize, ivsize, - (caddr_t)sc->sc_sessions[q->q_sesn].ses_iv); - - else if (crp->crp_flags & CRYPTO_F_IOV) { -#if 0 - cuio_copydata((struct uio *)crp->crp_buf, - crd->crd_skip + crd->crd_len - 8, 8, - (caddr_t)sc->sc_sessions[q->q_sesn].ses_iv); -#endif - crypto_copydata(crp->crp_flags, (caddr_t)crp->crp_buf, - crd->crd_skip + crd->crd_len - ivsize, ivsize, - (caddr_t)sc->sc_sessions[q->q_sesn].ses_iv); - - } - break; - } - } - - for (crd = crp->crp_desc; crd; crd = crd->crd_next) { - if (crd->crd_alg != CRYPTO_MD5_HMAC && - crd->crd_alg != CRYPTO_SHA1_HMAC) - continue; -#if 0 - if (crp->crp_flags & CRYPTO_F_SKBUF) - m_copyback((struct sk_buff *)crp->crp_buf, - crd->crd_inject, 12, - dmap->d_dma->d_macbuf); -#endif -#if 0 - /* BUG? it does not honor the mac len.. */ - crypto_copyback(crp->crp_flags, crp->crp_buf, - crd->crd_inject, 12, - (caddr_t)dmap->d_dma->d_macbuf); -#endif - crypto_copyback(crp->crp_flags, crp->crp_buf, - crd->crd_inject, - sc->sc_sessions[q->q_sesn].ses_mlen, - (caddr_t)dmap->d_dma->d_macbuf); -#if 0 - else if (crp->crp_flags & CRYPTO_F_IOV && crp->crp_mac) - bcopy((caddr_t)dmap->d_dma->d_macbuf, - crp->crp_mac, 12); -#endif - break; - } - BSD_SIMPLEQ_INSERT_TAIL(&sc->sc_freequeue, q, q_next); - crypto_done(crp); -} - -void -ubsec_mcopy(struct sk_buff *srcm, struct sk_buff *dstm, int hoffset, int toffset) -{ - int i, j, dlen, slen; - caddr_t dptr, sptr; - - j = 0; - sptr = srcm->data; - slen = srcm->len; - dptr = dstm->data; - dlen = dstm->len; - - while (1) { - for (i = 0; i < min(slen, dlen); i++) { - if (j < hoffset || j >= toffset) - *dptr++ = *sptr++; - slen--; - dlen--; - j++; - } - if (slen == 0) { - srcm = srcm->next; - if (srcm == NULL) - return; - sptr = srcm->data; - slen = srcm->len; - } - if (dlen == 0) { - dstm = dstm->next; - if (dstm == NULL) - return; - dptr = dstm->data; - dlen = dstm->len; - } - } -} - -int -ubsec_dma_malloc(struct ubsec_softc *sc, struct ubsec_dma_alloc *dma, - size_t size, int mapflags) -{ - dma->dma_vaddr = dma_alloc_coherent(sc->sc_dv, - size, &dma->dma_paddr, GFP_KERNEL); - - if (likely(dma->dma_vaddr)) - { - dma->dma_size = size; - return (0); - } - - DPRINTF("could not allocate %d bytes of coherent memory.\n", size); - - return (1); -} - -void -ubsec_dma_free(struct ubsec_softc *sc, struct ubsec_dma_alloc *dma) -{ - dma_free_coherent(sc->sc_dv, dma->dma_size, dma->dma_vaddr, - dma->dma_paddr); -} - -/* - * Resets the board. Values in the regesters are left as is - * from the reset (i.e. initial values are assigned elsewhere). - */ -void -ubsec_reset_board(struct ubsec_softc *sc) -{ - volatile u_int32_t ctrl; - -#ifdef UBSEC_DEBUG - DPRINTF("%s()\n", __FUNCTION__); -#endif - DPRINTF("Send reset signal to chip.\n"); - - ctrl = READ_REG(sc, BS_CTRL); - ctrl |= BS_CTRL_RESET; - WRITE_REG(sc, BS_CTRL, ctrl); - - /* - * Wait aprox. 30 PCI clocks = 900 ns = 0.9 us - */ - DELAY(10); -} - -/* - * Init Broadcom registers - */ -void -ubsec_init_board(struct ubsec_softc *sc) -{ - u_int32_t ctrl; - -#ifdef UBSEC_DEBUG - DPRINTF("%s()\n", __FUNCTION__); -#endif - DPRINTF("Initialize chip.\n"); - - ctrl = READ_REG(sc, BS_CTRL); - ctrl &= ~(BS_CTRL_BE32 | BS_CTRL_BE64); - ctrl |= BS_CTRL_LITTLE_ENDIAN | BS_CTRL_MCR1INT | BS_CTRL_DMAERR; - - WRITE_REG(sc, BS_CTRL, ctrl); - - /* Set chip capabilities (BCM5365P) */ - sc->sc_flags |= UBS_FLAGS_LONGCTX | UBS_FLAGS_AES; -} - -/* - * Clean up after a chip crash. - * It is assumed that the caller has spin_lock_irq(sc_ringmtx). - */ -void -ubsec_cleanchip(struct ubsec_softc *sc) -{ - struct ubsec_q *q; - -#ifdef UBSEC_DEBUG - DPRINTF("%s()\n", __FUNCTION__); -#endif - DPRINTF("Clean up queues after chip crash.\n"); - - while (!BSD_SIMPLEQ_EMPTY(&sc->sc_qchip)) { - q = BSD_SIMPLEQ_FIRST(&sc->sc_qchip); - BSD_SIMPLEQ_REMOVE_HEAD(&sc->sc_qchip, q_next); - ubsec_free_q(sc, q); - } -} - -/* - * free a ubsec_q - * It is assumed that the caller has spin_lock_irq(sc_ringmtx). - */ -int -ubsec_free_q(struct ubsec_softc *sc, struct ubsec_q *q) -{ - struct ubsec_q *q2; - struct cryptop *crp; - int npkts; - int i; - -#ifdef UBSEC_DEBUG - DPRINTF("%s()\n", __FUNCTION__); -#endif - - npkts = q->q_nstacked_mcrs; - - for (i = 0; i < npkts; i++) { - if(q->q_stacked_mcr[i]) { - q2 = q->q_stacked_mcr[i]; - - if ((q2->q_dst_m != NULL) && (q2->q_src_m != q2->q_dst_m)) -#ifdef NOTYET - m_freem(q2->q_dst_m); -#else - printk(KERN_ERR "%s,%d: SKB not supported\n", __FILE__, __LINE__); -#endif - - crp = (struct cryptop *)q2->q_crp; - - BSD_SIMPLEQ_INSERT_TAIL(&sc->sc_freequeue, q2, q_next); - - crp->crp_etype = EFAULT; - crypto_done(crp); - } else { - break; - } - } - - /* - * Free header MCR - */ - if ((q->q_dst_m != NULL) && (q->q_src_m != q->q_dst_m)) -#ifdef NOTYET - m_freem(q->q_dst_m); -#else - printk(KERN_ERR "%s,%d: SKB not supported\n", __FILE__, __LINE__); -#endif - - crp = (struct cryptop *)q->q_crp; - - BSD_SIMPLEQ_INSERT_TAIL(&sc->sc_freequeue, q, q_next); - - crp->crp_etype = EFAULT; - crypto_done(crp); - return(0); -} - -/* - * Routine to reset the chip and clean up. - * It is assumed that the caller has spin_lock_irq(sc_ringmtx). - */ -void -ubsec_totalreset(struct ubsec_softc *sc) -{ - -#ifdef UBSEC_DEBUG - DPRINTF("%s()\n", __FUNCTION__); -#endif - DPRINTF("initiate total chip reset.. \n"); - ubsec_reset_board(sc); - ubsec_init_board(sc); - ubsec_cleanchip(sc); -} - -void -ubsec_dump_pb(struct ubsec_pktbuf *pb) -{ - printf("addr 0x%x (0x%x) next 0x%x\n", - pb->pb_addr, pb->pb_len, pb->pb_next); -} - -void -ubsec_dump_mcr(struct ubsec_mcr *mcr) -{ - struct ubsec_mcr_add *ma; - int i; - - printf("MCR:\n"); - printf(" pkts: %u, flags 0x%x\n", - letoh16(mcr->mcr_pkts), letoh16(mcr->mcr_flags)); - ma = (struct ubsec_mcr_add *)&mcr->mcr_cmdctxp; - for (i = 0; i < letoh16(mcr->mcr_pkts); i++) { - printf(" %d: ctx 0x%x len 0x%x rsvd 0x%x\n", i, - letoh32(ma->mcr_cmdctxp), letoh16(ma->mcr_pktlen), - letoh16(ma->mcr_reserved)); - printf(" %d: ipkt ", i); - ubsec_dump_pb(&ma->mcr_ipktbuf); - printf(" %d: opkt ", i); - ubsec_dump_pb(&ma->mcr_opktbuf); - ma++; - } - printf("END MCR\n"); -} - -static int __init mod_init(void) { - return ssb_driver_register(&ubsec_ssb_driver); -} - -static void __exit mod_exit(void) { - ssb_driver_unregister(&ubsec_ssb_driver); -} - -module_init(mod_init); -module_exit(mod_exit); - -// Meta information -MODULE_AUTHOR("Daniel Mueller <daniel@danm.de>"); -MODULE_LICENSE("BSD"); -MODULE_DESCRIPTION("OCF driver for BCM5365P IPSec Core"); -MODULE_VERSION(DRV_MODULE_VERSION); - |