On 18 April 2016 at 15:04, Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> wrote: > On Mon, Apr 18, 2016 at 02:02:51PM +0800, Baolin Wang wrote: >> >> If the crypto hardware engine can support bulk data >> encryption/decryption, so the engine driver can select bulk mode to >> handle the requests. I think it is a totally driver things, not in >> dmcrypt. The dmcrypt can not get the hardware engine's attributes. > > It has nothing to do with the hardware attributes. dm-crypt should > be sending maximal requests in the first place. I don't think so, the dm-crypt can not send maximal requests at some situations. For example, the 'cbc(aes)' cipher, it must be handled sector by sector (IV is dependency for each sector), so the dm-crypt can not send maximal requests, but must sector by sector in this situation. > > Cheers, > -- > Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> > Home Page: http://gondor.apana.org.au/~herbert/ > PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt -- Baolin.wang Best Regards -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
