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author | David S. Miller <davem@davemloft.net> | 2009-03-26 15:23:24 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2009-03-26 15:23:24 -0700 |
commit | 08abe18af1f78ee80c3c3a5ac47c3e0ae0beadf6 (patch) | |
tree | 2be39bf8942edca1bcec735145e144a682ca9cd3 /drivers/crypto/amcc/crypto4xx_sa.c | |
parent | f0de70f8bb56952f6e016a65a8a8d006918f5bf6 (diff) | |
parent | 0384e2959127a56d0640505d004d8dd92f9c29f5 (diff) | |
download | op-kernel-dev-08abe18af1f78ee80c3c3a5ac47c3e0ae0beadf6.zip op-kernel-dev-08abe18af1f78ee80c3c3a5ac47c3e0ae0beadf6.tar.gz |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Conflicts:
drivers/net/wimax/i2400m/usb-notif.c
Diffstat (limited to 'drivers/crypto/amcc/crypto4xx_sa.c')
-rw-r--r-- | drivers/crypto/amcc/crypto4xx_sa.c | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/drivers/crypto/amcc/crypto4xx_sa.c b/drivers/crypto/amcc/crypto4xx_sa.c new file mode 100644 index 0000000..466fd94 --- /dev/null +++ b/drivers/crypto/amcc/crypto4xx_sa.c @@ -0,0 +1,108 @@ +/** + * AMCC SoC PPC4xx Crypto Driver + * + * Copyright (c) 2008 Applied Micro Circuits Corporation. + * All rights reserved. James Hsiao <jhsiao@amcc.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * @file crypto4xx_sa.c + * + * This file implements the security context + * assoicate format. + */ +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/mod_devicetable.h> +#include <linux/interrupt.h> +#include <linux/spinlock_types.h> +#include <linux/highmem.h> +#include <linux/scatterlist.h> +#include <linux/crypto.h> +#include <crypto/algapi.h> +#include <crypto/des.h> +#include "crypto4xx_reg_def.h" +#include "crypto4xx_sa.h" +#include "crypto4xx_core.h" + +u32 get_dynamic_sa_offset_iv_field(struct crypto4xx_ctx *ctx) +{ + u32 offset; + union dynamic_sa_contents cts; + + if (ctx->direction == DIR_INBOUND) + cts.w = ((struct dynamic_sa_ctl *)(ctx->sa_in))->sa_contents; + else + cts.w = ((struct dynamic_sa_ctl *)(ctx->sa_out))->sa_contents; + offset = cts.bf.key_size + + cts.bf.inner_size + + cts.bf.outer_size + + cts.bf.spi + + cts.bf.seq_num0 + + cts.bf.seq_num1 + + cts.bf.seq_num_mask0 + + cts.bf.seq_num_mask1 + + cts.bf.seq_num_mask2 + + cts.bf.seq_num_mask3; + + return sizeof(struct dynamic_sa_ctl) + offset * 4; +} + +u32 get_dynamic_sa_offset_state_ptr_field(struct crypto4xx_ctx *ctx) +{ + u32 offset; + union dynamic_sa_contents cts; + + if (ctx->direction == DIR_INBOUND) + cts.w = ((struct dynamic_sa_ctl *) ctx->sa_in)->sa_contents; + else + cts.w = ((struct dynamic_sa_ctl *) ctx->sa_out)->sa_contents; + offset = cts.bf.key_size + + cts.bf.inner_size + + cts.bf.outer_size + + cts.bf.spi + + cts.bf.seq_num0 + + cts.bf.seq_num1 + + cts.bf.seq_num_mask0 + + cts.bf.seq_num_mask1 + + cts.bf.seq_num_mask2 + + cts.bf.seq_num_mask3 + + cts.bf.iv0 + + cts.bf.iv1 + + cts.bf.iv2 + + cts.bf.iv3; + + return sizeof(struct dynamic_sa_ctl) + offset * 4; +} + +u32 get_dynamic_sa_iv_size(struct crypto4xx_ctx *ctx) +{ + union dynamic_sa_contents cts; + + if (ctx->direction == DIR_INBOUND) + cts.w = ((struct dynamic_sa_ctl *) ctx->sa_in)->sa_contents; + else + cts.w = ((struct dynamic_sa_ctl *) ctx->sa_out)->sa_contents; + return (cts.bf.iv0 + cts.bf.iv1 + cts.bf.iv2 + cts.bf.iv3) * 4; +} + +u32 get_dynamic_sa_offset_key_field(struct crypto4xx_ctx *ctx) +{ + union dynamic_sa_contents cts; + + if (ctx->direction == DIR_INBOUND) + cts.w = ((struct dynamic_sa_ctl *) ctx->sa_in)->sa_contents; + else + cts.w = ((struct dynamic_sa_ctl *) ctx->sa_out)->sa_contents; + + return sizeof(struct dynamic_sa_ctl); +} |