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Date: Wed, 27 Jun 2007 00:44:53 -0700 (PDT) From: David Miller <davem@...emloft.net> To: shemminger@...ux-foundation.org Cc: kaber@...sh.net, herbert.xu@...hat.com, netdev@...r.kernel.org, mchan@...adcom.com Subject: Re: [RFC] IPV6 checksum offloading in network devices From: Stephen Hemminger <shemminger@...ux-foundation.org> Date: Wed, 30 May 2007 14:00:34 -0700 > This is better. > There is still a possiblity when a device allows IPV6 and not IPV4 > checksumming, that the checksum will be done in the fixup code in > dev_queue_xmit. > > The existing model for checksum offload does not correctly handle > devices that can offload IPV4 and IPV6 only. The NETIF_F_HW_CSUM flag > implies device can do any arbitrary protocol. > > This patch: > * adds NETIF_F_IPV6_CSUM for those devices > * fixes bnx2 and tg3 devices that need it > * add NETIF_F_IPV6_CSUM to ipv6 output (incl GSO) > * fixes assumptions about NETIF_F_ALL_CSUM in nat > * adjusts bridge union of checksumming computation I've applied this to net-2.6.23, we can back it out or rework it if there are problems. Several of these checksum feature tests are getting out of hand :-) - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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