Hello list,
I am working on a software emulation of a NIC and
I am trying to understand how xl710's transmission works.
According to the spec transmit scheduler uses round-robin
policy and for each Queues Set it does 4KB (Quanta) of work.
Spec also mentions in A.2:
"Quanta can span multiple transmit queues and multiple
descriptors. It is up to the transmit processing logic
to decide how many descriptors and queues use. Queues
assigned to the same Queue Set have same priority and
arbitrated round robin by processing logic."
It looks like the transmit logic works on the transmit Queues
in round-robin fashion as well. But the spec doesn't say what
is the "Quanta" the transmit logic uses for each transmit Queue.
I wonder how much work in (bytes or time) the transmit processing
logic does per transmit Queue assigned to a Queue Set?
Assume the most trivial configuration, no TC/VEB/BW limit or any
fancy stuff configured, only a single VSI with a single
Queue Set of N queue-pairs (N is number of cores).
Thanks,
Alex
_______________________________________________
E1000-devel mailing list
E1000-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/e1000-devel
To learn more about Intel Ethernet, visit
https://forums.intel.com/s/topic/0TO0P00000018NbWAI/intel-ethernet
