Messages in this thread | | | Date | Wed, 11 Oct 2006 02:20:15 -0700 (PDT) | Subject | Re: Dropping NETIF_F_SG since no checksum feature. | From | David Miller <> |
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From: "Michael S. Tsirkin" <mst@mellanox.co.il> Date: Wed, 11 Oct 2006 11:05:04 +0200
> So, it seems that if I set NETIF_F_SG but clear NETIF_F_ALL_CSUM, > data will be copied over rather than sent directly. > So why does dev.c have to force set NETIF_F_SG to off then?
Because it's more efficient to copy into a linear destination buffer of an SKB than page sub-chunks when doing checksum+copy. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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