148784 2006-09-23 08:17 0000 Add support for VIA padlock in sys-fs/loop-aes 2006-10-04 08:51:42 0000 1 1 1 Unclassified Gentoo Linux Ebuilds unspecified All Linux RESOLVED FIXED P2 enhancement --- 1 LittleThor@xsw.terminator.net genstef@gentoo.org alonbl@gentoo.org LittleThor@xsw.terminator.net 2006-09-23 08:17:05 0000 Please consider adding support for the VIA padlock hardware AES acceleration in loop-aes. From the loop-aes README: "If you want enable VIA padlock hardware AES xcrypt instructions, specify PADLOCK=y on make command line. If enabled, presence of VIA padlock instructions is detected at run time, but code still works on non-padlock processors too." I see two options here, either make PADLOCK=y the default (should still run on other processors) or (probably more preferable) add a padlock USE flag and do something like: use padlock && BUILD_PARAMS="${BUILD_PARAMS} PADLOCK=y" jakub@gentoo.org 2006-09-23 10:59:09 0000 *** This bug has been marked as a duplicate of 145537 *** *** This bug has been marked as a duplicate of 145537 *** LittleThor@xsw.terminator.net 2006-09-23 11:41:19 0000 Bug 145537 does not appear to be related? Padlock support in loop-aes would neither use nor require support in openssl. Upstream loop-aes already contains it's own padlock implementation as a compile time option but the ebuild does not enable it. All that's needed is for the ebuild to allow that compile time option to be set? genstef@gentoo.org 2006-09-23 13:05:10 0000 CCing main contributor for this :) can you please contribute a patch? alonbl@gentoo.org 2006-09-23 13:49:52 0000 Created an attachment (id=97891) loop-aes-3.1d.ebuild.diff Sure! Although I don't have the hardware to test it, it seems to work without the hardware, but I notice a performance impact. Add new use flag, padlock: Use VIA padlock instructions, detected at run time, code still works on non-padlock processors too. LittleThor@xsw.terminator.net 2006-09-24 03:55:46 0000 Works great, thanks! Nearly triples the IO speed on a C7. If you need any testing on this hardware in the future please feel free to CC me. genstef@gentoo.org 2006-10-04 08:51:42 0000 thanks, fixed 97891 2006-09-23 13:49 0000 loop-aes-3.1d.ebuild.diff loop-aes-3.1d.ebuild.diff text/plain LS0tIGxvb3AtYWVzLTMuMWQuZWJ1aWxkCTIwMDYtMDktMTUgMDg6MDY6MTguMDAwMDAwMDAwICsw MzAwCisrKyBsb29wLWFlcy0zLjFkLmVidWlsZAkyMDA2LTA5LTIzIDIzOjE3OjE3LjAwMDAwMDAw MCArMDMwMApAQCAtMTEsMTAgKzExLDEwIEBAIFNSQ19VUkk9Im1pcnJvcjovL3NvdXJjZWZvcmdl L2xvb3AtYWVzLyQKIAogTElDRU5TRT0iR1BMLTIiCiBTTE9UPSIwIgotSVVTRT0ia2V5c2NydWIi CitJVVNFPSJrZXlzY3J1YiBwYWRsb2NrIgogS0VZV09SRFM9In5hbWQ2NCB+aHBwYSB+cHBjIHg4 NiIKIAotUz0ke1dPUktESVJ9LyR7TVlfUH0KK1M9IiR7V09SS0RJUn0vJHtNWV9QfSIKIAogQ09O RklHX0NIRUNLPSIhQkxLX0RFVl9MT09QIgogTU9EVUxFX05BTUVTPSJsb29wKGJsb2NrOikiCkBA IC00MSw2ICs0MSw3IEBAIHBrZ19zZXR1cCgpIHsKIAogCUJVSUxEX1BBUkFNUz0iTElOVVhfU09V UkNFPSR7S1ZfRElSfSBNT0RJTlNUPW4gUlVORE09biIKIAl1c2Uga2V5c2NydWIgJiYgQlVJTERf UEFSQU1TPSIke0JVSUxEX1BBUkFNU30gS0VZU0NSVUI9eSIKKwl1c2UgcGFkbG9jayAmJiBCVUlM RF9QQVJBTVM9IiR7QlVJTERfUEFSQU1TfSBQQURMT0NLPXkiCiB9CiAKIHNyY191bnBhY2sgKCkg ewo=