From owner-freebsd-net@freebsd.org Wed Apr 5 21:53:14 2017 Return-Path: Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 86D9BD2D741 for ; Wed, 5 Apr 2017 21:53:14 +0000 (UTC) (envelope-from sbruno@freebsd.org) Received: from mailman.ysv.freebsd.org (unknown [127.0.1.3]) by mx1.freebsd.org (Postfix) with ESMTP id 6C4D7283 for ; Wed, 5 Apr 2017 21:53:14 +0000 (UTC) (envelope-from sbruno@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id 6B9C0D2D740; Wed, 5 Apr 2017 21:53:14 +0000 (UTC) Delivered-To: net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 6B402D2D73E for ; Wed, 5 Apr 2017 21:53:14 +0000 (UTC) (envelope-from sbruno@freebsd.org) Received: from mail.ignoranthack.me (ignoranthack.me [199.102.79.106]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 3CF85282 for ; Wed, 5 Apr 2017 21:53:13 +0000 (UTC) (envelope-from sbruno@freebsd.org) Received: from [192.168.0.6] (97-123-4-62.albq.qwest.net [97.123.4.62]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: sbruno@ignoranthack.me) by mail.ignoranthack.me (Postfix) with ESMTPSA id 44A6A1928AC; Wed, 5 Apr 2017 21:53:12 +0000 (UTC) Subject: Re: Intel 82545 & TSO To: Vijay Singh , "freebsd-net@freebsd.org" References: From: Sean Bruno Message-ID: <793b585e-8af4-56e3-97eb-942efbc8d06c@freebsd.org> Date: Wed, 5 Apr 2017 15:53:05 -0600 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:52.0) Gecko/20100101 Thunderbird/52.0 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="FC6V5GUtBqtOWAhNGTiBj0FIHAVbpTv2R" X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 05 Apr 2017 21:53:14 -0000 This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --FC6V5GUtBqtOWAhNGTiBj0FIHAVbpTv2R Content-Type: multipart/mixed; boundary="K0Rtwt3AkWPE0sQMV77JCQlB2kuPMdKmD"; protected-headers="v1" From: Sean Bruno To: Vijay Singh , "freebsd-net@freebsd.org" Message-ID: <793b585e-8af4-56e3-97eb-942efbc8d06c@freebsd.org> Subject: Re: Intel 82545 & TSO References: In-Reply-To: --K0Rtwt3AkWPE0sQMV77JCQlB2kuPMdKmD Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 04/05/17 10:26, Vijay Singh wrote: > I am running FreeBSD as a guest on ESX 5.x and see Intel device 0x100F = in > the guest. The man page for em(4) says: >=20 > " The driver supports Transmit/Receive checksum offload and Jumbo > Frames on all but 82542-based adapters. Furthermore it supports TCP > segmentation offload (TSO) on all adapters but those based on the > 82543, 82544 and 82547 controller chips." >=20 > This particular device is probed by the if_lem.c driver, but I see no > support for TSO in that file. I have verified that TSO is enabled on > the host. What am I missing? >=20 > em0@pci0:2:0:0: class=3D0x020000 card=3D0x075015ad chip=3D0x100f8086 re= v=3D0x01 hdr=3D0x00 > vendor =3D 'Intel Corporation' > device =3D '82545EM Gigabit Ethernet Controller (Copper)' > class =3D network > subclass =3D ethernet >=20 > ifconfig -vvvm em0 > em0: flags=3D8843 metric 0 mtu = 1500 > options=3D8009b > capabilities=3D9009b > ether 02:a0:98:ec:26:1d > media: Ethernet autoselect (1000baseT ) > status: active > supported media: > media autoselect > media 100baseTX mediaopt full-duplex > media 100baseTX > media 10baseT/UTP mediaopt full-duplex > media 10baseT/UTP >=20 >=20 > -vijay > _______________________________________________ Just so that I'm sure, what version of FreeBSD is this from? sean --K0Rtwt3AkWPE0sQMV77JCQlB2kuPMdKmD-- --FC6V5GUtBqtOWAhNGTiBj0FIHAVbpTv2R Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQGTBAEBCgB9FiEEuq1GMucSHejSCZfdEgHvyh5yfmQFAljlZ0FfFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldEJB QUQ0NjMyRTcxMjFERThEMjA5OTdERDEyMDFFRkNBMUU3MjdFNjQACgkQEgHvyh5y fmSVpAf+IxWn7rYAhpX6wnA0xhuHCp8HpjVmYCJ98bnIeu91V2SIgL+dDwtzfr00 544U/DQhXnoZYtvBUMIzcanc0/wXrTNDwVUazgSsTDhMsNpdfmvHjcd5KB+XHYvE gW8AQJvT7Jbsd727pS449NCNIKmvoY7/h5i4cfYWMgtXUj/s2dqTFQfsyMT6rVcH mkYfOHtmP64P/CKlsI6bLVhPL64LfBmnd77L2OeUcyEqmuZ4zh0SDJ2ndapHUthM sOha8Swdn/H5woVPJXkw3YzE/u9pYsmboJjOHnuJwnA/QpBfmKa2HlgG5Ro4drSI DrYFOM6UfRkjcP1NoihbMqUcxw3Bng== =RvGw -----END PGP SIGNATURE----- --FC6V5GUtBqtOWAhNGTiBj0FIHAVbpTv2R--