Re: [PATCH net-next v3 2/6] net: sched: sfq: convert to qdisc drop reasons

Jesper Dangaard Brouer [off-list ref] writes:

Convert SFQ to use the new qdisc-specific drop reason infrastructure.

This patch demonstrates how to convert a flow-based qdisc to use the
new enum qdisc_drop_reason. As part of this conversion:

- Add QDISC_DROP_MAXFLOWS for flow table exhaustion
- Rename FQ_FLOW_LIMIT to generic FLOW_LIMIT, now shared by FQ and SFQ
- Use QDISC_DROP_OVERLIMIT for sfq_drop() when overall limit exceeded
- Use QDISC_DROP_FLOW_LIMIT for per-flow depth limit exceeded

The FLOW_LIMIT reason is now a common drop reason for per-flow limits,
applicable to both FQ and SFQ qdiscs.

Signed-off-by: Jesper Dangaard Brouer <hawk@kernel.org>

Reviewed-by: Toke Høiland-Jørgensen <redacted>