Re: [PATCH v2] net: sch_generic: Use pfifo_fast as fallback scheduler for CAN hardware

[Eric Dumazet]

On 10/22/19 9:42 AM, Stephen Hemminger wrote:

> Why not fix fq_codel to return the same errors as other qdisc?
> 

I believe the same problem would happen with any qdisc not doing tail drops.

Do we really want to enforce all qdisc to have a common drop strategy ?

For example, FQ could implement a strategy dropping the oldest packet in the 
queue,
which is absolutely not related to the enqueue order.