On Wed, Dec 30, 2020 at 7:38 AM Richard Cochran <richardcoch...@gmail.com> wrote: > > On Mon, Dec 28, 2020 at 11:22:33AM -0500, Willem de Bruijn wrote: > > From: Willem de Bruijn <will...@google.com> > > > > Add optional delivery time (SO_TXTIME) offload for virtio-net. > > > > The Linux TCP/IP stack tries to avoid bursty transmission and network > > congestion through pacing: computing an skb delivery time based on > > congestion information. Userspace protocol implementations can achieve > > the same with SO_TXTIME. This may also reduce scheduling jitter and > > improve RTT estimation. > > This description is clear, but the Subject line is confusing. It made > me wonder whether this series is somehow about host/guest synchronization > (but your comments do explain that that isn't the case). > > How about this instead? > > virtio-net: support future packet transmit time
Yes, that's clearer. As is, this could easily be mistaken for SOF_TIMESTAMPING_TX_*, which it is not. Will update, thanks. Related terms already in use are SO_TXTIME, Earliest Delivery Time (EDT) and Earliest TxTime First (ETF). I should probably also s/TX_TSTAMP/TX_TIME/ in the code for the same reason.
