The following reply was made to PR kern/141843; it has been noted by GNATS.
From: Dennis Yusupoff <d...@smartspb.net> To: pyu...@gmail.com, bug-follo...@freebsd.org Cc: Subject: Re: kern/141843: [em] [vlan] Intel txcsum and assigned vlan invoke wrong dst MAC in TCP packets Date: Mon, 11 Jan 2010 12:20:46 +0300 30.12.2009 23:20, Pyun YongHyeon пиÑеÑ: > > Sorry, that wasn't expected one. From your explanation above I > think I found a possible cause of checksum offload issue of em(4). > The issue was not I initially thought though. It seems the checksum > offload context configured in em(4) was incorrectly reused even if > a frame requires a new context as IP/TCP header length, checksum > offload offset was changed. Setting up new context put more burden > to hardware such that em(4) used to avoid new context setup as > possible as it can. However it seems em(4) failed to compare all > required field in the checksum offload context. Would you try the > following patch again? > > http://people.freebsd.org/~yongari/em.csum_tso.20091230.patch Gotcha! It works! --- With best regards, Dennis Yusupoff, network engineer of Smart-Telecom ISP Russia, Saint-Petersburg _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
