Messages in this thread | | | From | "Manfred Spraul" <> | Subject | Re: NETIF_F_(SG|FRAGLIST|HIGHDMA) docs anywhere? | Date | Sat, 29 Dec 2001 12:14:46 +0100 |
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> my major problem is test cases and getting the picture behind these > structures.
Check skb_copy_and_csum_dev, used by the 8139too and via-rhine network drivers: that's a software-only implementation of the NETIF_F_ flags.
Note that the kernel never uses scatter-gather without hardware checksumming: concurrent sendfile()+write() would create packets with invalid checksums.
-- Manfred
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