Messages in this thread | | | Date | Tue, 22 Mar 2005 10:23:48 +0200 (IST) | From | Hayim Shaul <> | Subject | Re: mmap/munmap bug |
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>> Does it support zero copy not only for send but also for receive? Can we >> receive packets directly to userspace buffers? > > that it can't currently, but without some major protocol stack rework > that's not going to be easy. If you want to help do that work, > excellent! Be sure to contact the people on net-dev mailinglist since > they are the ones having looked at this previously.
My case is simpler, as the application I attend it to is similar to a NAT. A packet comes in, a little alternation of the headers and off it goes again. So there's no TCP-stack or anything.
What I thought of doing, is map the skbuff to user-space. Have the user-application alter the headers. Send the (same) skbuff from kernel-space.
Does there exist anything equivalent?
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