2  * Calculate a CRC T10-DIF with vpmsum acceleration
13 #include <linux/crc-t10dif.h>
27 u32 __crct10dif_vpmsum(u32 crc, unsigned char const *p, size_t len);
33 	u32 crc = crci;  in crct10dif_vpmsum()  local
36 		return crc_t10dif_generic(crc, p, len);  in crct10dif_vpmsum()
40 		crc = crc_t10dif_generic(crc, p, prealign);  in crct10dif_vpmsum()
46 		crc <<= 16;  in crct10dif_vpmsum()
50 		crc = __crct10dif_vpmsum(crc, p, len & ~VMX_ALIGN_MASK);  in crct10dif_vpmsum()
54 		crc >>= 16;  in crct10dif_vpmsum()
60 		crc = crc_t10dif_generic(crc, p, tail);  in crct10dif_vpmsum()
63 	return crc & 0xffff;  in crct10dif_vpmsum()
68 	u16 *crc = shash_desc_ctx(desc);  in crct10dif_vpmsum_init()  local
70 	*crc = 0;  in crct10dif_vpmsum_init()
77 	u16 *crc = shash_desc_ctx(desc);  in crct10dif_vpmsum_update()  local
79 	*crc = crct10dif_vpmsum(*crc, data, length);  in crct10dif_vpmsum_update()