Date: Fri, 1 Sep 2006 15:51:21 -0700 From: "Jack Vogel" <jfvogel@gmail.com> To: freebsd-net <freebsd-net@freebsd.org>, freebsd-current <freebsd-current@freebsd.org> Subject: RFC: TSO patch for current Message-ID: <2a41acea0609011551v40338539u4eef48d091dd12ab@mail.gmail.com>
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------=_Part_13875_32385575.1157151081575 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline This is a patch for the stack and the em driver to enable TSO on CURRENT. Previously I had problems getting it to work, but this is functional. I should note that CURRENT is being a pain right now, when I comment out em in the config the kernel panics coming up, so I had to substitute this code into the tree. Rather bizarre :) I have this functionality running on a 6.1 based system, and our test group is already testing against that driver, so far things are looking good. I have designed it so the driver can continue to be built without support. There is also a sysctl in the stack code so you can set net.inet.tcp.tso_enable on or off and compare. I know there may be some refinements to add in, but I would like to get this into CURRENT as a start. Comments? Jack ------=_Part_13875_32385575.1157151081575 Content-Type: text/x-patch; name=em-current-tso.patch; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: base64 X-Attachment-Id: f_erlkv0es Content-Disposition: attachment; filename="em-current-tso.patch" LS0tIGRpc3QvaWZfZW0uaAlUaHUgQXVnICAzIDEyOjA1OjA0IDIwMDYKKysrIGlmX2VtLmgJRnJp IFNlcCAgMSAxNTo1NTozMCAyMDA2CkBAIC0zNiw2ICszNiw4IEBACiAjaWZuZGVmIF9FTV9IX0RF RklORURfCiAjZGVmaW5lIF9FTV9IX0RFRklORURfCiAKKyNkZWZpbmUgVENQX1RTTworCiAvKiBU dW5hYmxlcyAqLwogCiAvKgpAQCAtMTM4LDYgKzE0MCwxMSBAQAogI2RlZmluZSBFTV9DSEVDS1NV TV9GRUFUVVJFUyAgICAgICAgICAgIChDU1VNX1RDUCB8IENTVU1fVURQKQogCiAvKgorICogSW5m b3JtIHRoZSBzdGFjayBhYm91dCB0cmFuc21pdCBzZWdtZW50YXRpb24gb2ZmbG9hZCBjYXBhYmls aXRpZXMuCisgKi8KKyNkZWZpbmUgRU1fVENQU0VHX0ZFQVRVUkVTCQlDU1VNX1RDUFNFRworCisv KgogICogVGhpcyBwYXJhbWV0ZXIgY29udHJvbHMgdGhlIGR1cmF0aW9uIG9mIHRyYW5zbWl0IHdh dGNoZG9nIHRpbWVyLgogICovCiAjZGVmaW5lIEVNX1RYX1RJTUVPVVQgICAgICAgICAgICAgICAg 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