On 21 July 2014 10:28, Joe Stringer <joestrin...@nicira.com> wrote: > On 19 July 2014 06:13, Jesse Gross <je...@nicira.com> wrote: > >> It's true, the field ordering is not significant if you understand all >> of the fields. The concern is that userspace may want to keep track of >> flows even if it doesn't understand all of the fields (for example, it >> can determine that the kernel provides information about some >> additional fields that userspace doesn't care about and just mask >> those out). In this case, to keep track of what is in the kernel, >> userspace would likely do a hash and comparison over the byte stream >> of the key. In that situation, even if reordering wouldn't cause the >> meaning to change, it would cause the comparison to fail. >> > > I see, thanks for explaining. In that case, I'll look at preparing a patch > that does the caching upon the first flow dump. >
The new version has a slightly different subject line: http://openvswitch.org/pipermail/dev/2014-July/042913.html _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
