1 // SPDX-License-Identifier: GPL-2.0-only
7  * Intel(R) 64 and IA-32 Architectures Software Developer's Manual
8  * Volume 2A: Instruction Set Reference, A-M
48 static u32 crc32c_intel_le_hw_byte(u32 crc, unsigned char const *data, size_t length)  in crc32c_intel_le_hw_byte()  argument
50 	while (length--) {  in crc32c_intel_le_hw_byte()
52 		    : "+r" (crc) : "rm" (*data));  in crc32c_intel_le_hw_byte()
53 		data++;  in crc32c_intel_le_hw_byte()
65 	while (iquotient--) {  in crc32c_intel_le_hw()
89 		return -EINVAL;  in crc32c_intel_setkey()
96 	u32 *mctx = crypto_shash_ctx(desc->tfm);  in crc32c_intel_init()
104 static int crc32c_intel_update(struct shash_desc *desc, const u8 *data,  in crc32c_intel_update()  argument
109 	*crcp = crc32c_intel_le_hw(*crcp, data, len);  in crc32c_intel_update()
113 static int __crc32c_intel_finup(u32 *crcp, const u8 *data, unsigned int len,  in __crc32c_intel_finup()  argument
114 				u8 *out)  in __crc32c_intel_finup()  argument
116 	*(__le32 *)out = ~cpu_to_le32(crc32c_intel_le_hw(*crcp, data, len));  in __crc32c_intel_finup()
120 static int crc32c_intel_finup(struct shash_desc *desc, const u8 *data,  in crc32c_intel_finup()  argument
121 			      unsigned int len, u8 *out)  in crc32c_intel_finup()  argument
123 	return __crc32c_intel_finup(shash_desc_ctx(desc), data, len, out);  in crc32c_intel_finup()
126 static int crc32c_intel_final(struct shash_desc *desc, u8 *out)  in crc32c_intel_final()  argument
130 	*(__le32 *)out = ~cpu_to_le32p(crcp);  in crc32c_intel_final()
134 static int crc32c_intel_digest(struct shash_desc *desc, const u8 *data,  in crc32c_intel_digest()  argument
135 			       unsigned int len, u8 *out)  in crc32c_intel_digest()  argument
137 	return __crc32c_intel_finup(crypto_shash_ctx(desc->tfm), data, len,  in crc32c_intel_digest()
138 				    out);  in crc32c_intel_digest()
151 static int crc32c_pcl_intel_update(struct shash_desc *desc, const u8 *data,  in crc32c_pcl_intel_update()  argument
162 		*crcp = crc_pcl(data, len, *crcp);  in crc32c_pcl_intel_update()
165 		*crcp = crc32c_intel_le_hw(*crcp, data, len);  in crc32c_pcl_intel_update()
169 static int __crc32c_pcl_intel_finup(u32 *crcp, const u8 *data, unsigned int len,  in __crc32c_pcl_intel_finup()  argument
170 				u8 *out)  in __crc32c_pcl_intel_finup()  argument
174 		*(__le32 *)out = ~cpu_to_le32(crc_pcl(data, len, *crcp));  in __crc32c_pcl_intel_finup()
177 		*(__le32 *)out =  in __crc32c_pcl_intel_finup()
178 			~cpu_to_le32(crc32c_intel_le_hw(*crcp, data, len));  in __crc32c_pcl_intel_finup()
182 static int crc32c_pcl_intel_finup(struct shash_desc *desc, const u8 *data,  in crc32c_pcl_intel_finup()  argument
183 			      unsigned int len, u8 *out)  in crc32c_pcl_intel_finup()  argument
185 	return __crc32c_pcl_intel_finup(shash_desc_ctx(desc), data, len, out);  in crc32c_pcl_intel_finup()
188 static int crc32c_pcl_intel_digest(struct shash_desc *desc, const u8 *data,  in crc32c_pcl_intel_digest()  argument
189 			       unsigned int len, u8 *out)  in crc32c_pcl_intel_digest()  argument
191 	return __crc32c_pcl_intel_finup(crypto_shash_ctx(desc->tfm), data, len,  in crc32c_pcl_intel_digest()
192 				    out);  in crc32c_pcl_intel_digest()
207 		.cra_driver_name	=	"crc32c-intel",
226 		return -ENODEV;  in crc32c_intel_mod_init()
250 MODULE_ALIAS_CRYPTO("crc32c-intel");