is it possible to 'bind' (for lack of a better term) a TX ring to a cpu?

[illumos-gate] 15513 zfs: Add zfs create dryrun -- Mike Gerdts <mike.gerdts⊙jc>

[illumos-gate] 15992 SMB: FileAllInformation missing FileAccessInformation -- Gordon Ross <gwr⊙rc>

jbk: didn't know the answer to that for illumos but went looking (haven't found it yet). a strict cpu-> tx queue mapping creates the potential for reordering in the driver if a flow switches tx queues because the sender switched cpus.

(for TCP, reordering is not a correctness problem as the receiver puts things back in the right order, but it can induce performance blips and spurious retransmissions).

jbk: "One ring to bring them all, and in the darkness bind them" - *that* lack of better term? ;)