On Fri, 20 Feb 2015 12:00:10 -0500 Martin Hicks <m...@bork.org> wrote:
> The newer talitos hardware has support for AES in XTS mode. Assuming it's the same thing, AES-XCBC gets added with SEC v3.0 h/w. Assuming hw_supports() doesn't already support this algorithm combination (technically via the mode bit), this needs to be reflected in the patch so the driver doesn't think SEC 2.x devices can do XTS, too. > + .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | > + DESC_HDR_SEL0_AESU | > + DESC_HDR_MODE0_AESU_XTS, ... > /* primary execution unit mode (MODE0) and derivatives */ > #define DESC_HDR_MODE0_ENCRYPT cpu_to_be32(0x00100000) > #define DESC_HDR_MODE0_AESU_CBC cpu_to_be32(0x00200000) > +#define DESC_HDR_MODE0_AESU_XTS cpu_to_be32(0x04200000) I'd prefer these defines be kept as single bit definitions, and keep their names from the manual. An XTS-specific definition can be composed from them either after this, or manually in the desc_hdr_template assignment above. Thanks, Kim -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
