[Cake] [Ecn-sane] l4s kernel submission

Michael Richardson mcr+ietf at sandelman.ca
Sat Oct 16 19:57:03 EDT 2021

Dave Taht <dave.taht at gmail.com> wrote:
    > What happens when a GSO packet is marked? Do all the packets get the
    > marking, or just the first?

Having done no work in this area for over a decade.... I think that the GSO
marking is in the skb (which is a Linux-ism, obviously), which goes down into
the device-specific driver, who then loads the single packet into the device
queue, and marks the packet for GSO in a device-specific way in the ring

The device does the Segment Offload.  There is no marking relevant in the
packet itself. There aren't multiple skb's for the packet.

So I think that the answer is "mu"

Michael Richardson <mcr+IETF at sandelman.ca>   . o O ( IPv6 IøT consulting )
           Sandelman Software Works Inc, Ottawa and Worldwide

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