Bezüglich Sean Bruno's Nachricht vom 05.04.2017 23:54 (localtime): > > > On 03/16/17 12:26, Harry Schmalzbauer wrote: >> Hello, >> >> I'm wondering if I really loose [RT]XCSUM_IPV6 on if_igb(4) vlan(4) >> children. >> My igb0 (Kawela, aka 82576) options end with >> "TSO6,VLAN_HWTSO,RXCSUM_IPV6,TXCSUM_IPV6" >> >> The vlan(4) filtered interfaces show these: >> options=303<RXCSUM,TXCSUM,TSO4,TSO6> >> >> So TSO6 is inherited, but RC/TXCSUM_IPV6 dropped? … >> > > That looks like a bug. Which version of FreeBSD is this?
Thanks for your attention. I'm on RELENG_11. I can confirm that behaviour on r315416 (Mar, 16th). >> In general, how is offloading implemented? If enabled, does the API >> simply generate packets lacking the checksum header and NIC (silicon) >> fills in the checksum if not adviesd not to do so (by the driver)? >> Or is the driver utilizing NIC registers for calculation, but ensures >> every packet will have a checksum? If you know any beginners-level explanations, I was still interested in getting knowledge about offloading implementation. Most important, is it driver/nic dependent or do all drivers implement it similar? Thanks, -harry _______________________________________________ freebsd-net@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
