2  * Shared glue code for 128bit block ciphers
4  * Copyright © 2012-2013 Jussi Kivilinna <jussi.kivilinna@iki.fi>
9  *   (C) Copyright IBM Corp. 2007 - Joy Latten <latten@us.ibm.com>
23  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
53 		fpu_enabled = glue_fpu_begin(bsize, gctx->fpu_blocks_limit,  in glue_ecb_req_128bit()
55 		for (i = 0; i < gctx->num_funcs; i++) {  in glue_ecb_req_128bit()
56 			func_bytes = bsize * gctx->funcs[i].num_blocks;  in glue_ecb_req_128bit()
61 			/* Process multi-block batch */  in glue_ecb_req_128bit()
63 				gctx->funcs[i].fn_u.ecb(ctx, dst, src);  in glue_ecb_req_128bit()
66 				nbytes -= func_bytes;  in glue_ecb_req_128bit()
102 			nbytes -= bsize;  in glue_cbc_encrypt_req_128bit()
131 		fpu_enabled = glue_fpu_begin(bsize, gctx->fpu_blocks_limit,  in glue_cbc_decrypt_req_128bit()
133 		/* Start of the last block. */  in glue_cbc_decrypt_req_128bit()
134 		src += nbytes / bsize - 1;  in glue_cbc_decrypt_req_128bit()
135 		dst += nbytes / bsize - 1;  in glue_cbc_decrypt_req_128bit()
139 		for (i = 0; i < gctx->num_funcs; i++) {  in glue_cbc_decrypt_req_128bit()
140 			num_blocks = gctx->funcs[i].num_blocks;  in glue_cbc_decrypt_req_128bit()
146 			/* Process multi-block batch */  in glue_cbc_decrypt_req_128bit()
148 				src -= num_blocks - 1;  in glue_cbc_decrypt_req_128bit()
149 				dst -= num_blocks - 1;  in glue_cbc_decrypt_req_128bit()
151 				gctx->funcs[i].fn_u.cbc(ctx, dst, src);  in glue_cbc_decrypt_req_128bit()
153 				nbytes -= func_bytes;  in glue_cbc_decrypt_req_128bit()
157 				u128_xor(dst, dst, --src);  in glue_cbc_decrypt_req_128bit()
158 				dst--;  in glue_cbc_decrypt_req_128bit()
191 		fpu_enabled = glue_fpu_begin(bsize, gctx->fpu_blocks_limit,  in glue_ctr_req_128bit()
196 		for (i = 0; i < gctx->num_funcs; i++) {  in glue_ctr_req_128bit()
197 			num_blocks = gctx->funcs[i].num_blocks;  in glue_ctr_req_128bit()
203 			/* Process multi-block batch */  in glue_ctr_req_128bit()
205 				gctx->funcs[i].fn_u.ctr(ctx, dst, src, &ctrblk);  in glue_ctr_req_128bit()
208 				nbytes -= func_bytes;  in glue_ctr_req_128bit()
227 		gctx->funcs[gctx->num_funcs - 1].fn_u.ctr(ctx, &tmp, &tmp,  in glue_ctr_req_128bit()
244 	unsigned int nbytes = walk->nbytes;  in __glue_xts_req_128bit()
245 	u128 *src = walk->src.virt.addr;  in __glue_xts_req_128bit()
246 	u128 *dst = walk->dst.virt.addr;  in __glue_xts_req_128bit()
250 	/* Process multi-block batch */  in __glue_xts_req_128bit()
251 	for (i = 0; i < gctx->num_funcs; i++) {  in __glue_xts_req_128bit()
252 		num_blocks = gctx->funcs[i].num_blocks;  in __glue_xts_req_128bit()
257 				gctx->funcs[i].fn_u.xts(ctx, dst, src,  in __glue_xts_req_128bit()
258 							walk->iv);  in __glue_xts_req_128bit()
262 				nbytes -= func_bytes;  in __glue_xts_req_128bit()
291 	fpu_enabled = glue_fpu_begin(bsize, gctx->fpu_blocks_limit,  in glue_xts_req_128bit()
319 	/* CC <- T xor C */  in glue_xts_crypt_128bit_one()
322 	/* PP <- D(Key2,CC) */  in glue_xts_crypt_128bit_one()
325 	/* P <- T xor PP */  in glue_xts_crypt_128bit_one()