Rename FQ-specific drop reasons to generic names: - QDISC_DROP_FQ_BAND_LIMIT -> QDISC_DROP_BAND_LIMIT - QDISC_DROP_FQ_HORIZON_LIMIT -> QDISC_DROP_HORIZON_LIMIT This follows the principle that drop reasons should describe the drop mechanism rather than being tied to a specific qdisc implementation. These concepts (priority band limits, timestamp horizon) could apply to other qdiscs as well. Signed-off-by: Jesper Dangaard Brouer --- include/net/dropreason-qdisc.h | 21 +++++++++++---------- net/sched/sch_fq.c | 2 +- 2 files changed, 12 insertions(+), 11 deletions(-) diff --git a/include/net/dropreason-qdisc.h b/include/net/dropreason-qdisc.h index 3759a801bddd..031fd8a0bc8c 100644 --- a/include/net/dropreason-qdisc.h +++ b/include/net/dropreason-qdisc.h @@ -12,8 +12,8 @@ FN(FLOW_LIMIT) \ FN(MAXFLOWS) \ FN(FLOOD_PROTECTION) \ - FN(FQ_BAND_LIMIT) \ - FN(FQ_HORIZON_LIMIT) \ + FN(BAND_LIMIT) \ + FN(HORIZON_LIMIT) \ FNe(MAX) #undef FN @@ -81,17 +81,18 @@ enum qdisc_drop_reason { */ QDISC_DROP_FLOOD_PROTECTION, /** - * @QDISC_DROP_FQ_BAND_LIMIT: FQ (Fair Queue) dropped packet because - * the priority band's packet limit was reached. Each priority band - * in FQ has its own limit. + * @QDISC_DROP_BAND_LIMIT: packet dropped because the priority band's + * limit was reached. Used by qdiscs with priority bands that have + * per-band packet limits (e.g., FQ). */ - QDISC_DROP_FQ_BAND_LIMIT, + QDISC_DROP_BAND_LIMIT, /** - * @QDISC_DROP_FQ_HORIZON_LIMIT: FQ dropped packet because its - * timestamp is too far in the future (beyond horizon). This prevents - * packets with unreasonable future timestamps from blocking the queue. + * @QDISC_DROP_HORIZON_LIMIT: packet dropped because its timestamp + * is too far in the future (beyond horizon). This prevents packets + * with unreasonable future timestamps from occupying queue space. + * Used by qdiscs with time-based scheduling (e.g., FQ). */ - QDISC_DROP_FQ_HORIZON_LIMIT, + QDISC_DROP_HORIZON_LIMIT, /** * @QDISC_DROP_MAX: the maximum of qdisc drop reasons, which * shouldn't be used as a real 'reason' - only for tracing code gen diff --git a/net/sched/sch_fq.c b/net/sched/sch_fq.c index ca615d5433db..a8432b63d496 100644 --- a/net/sched/sch_fq.c +++ b/net/sched/sch_fq.c @@ -541,7 +541,7 @@ static bool fq_packet_beyond_horizon(const struct sk_buff *skb, return unlikely((s64)skb->tstamp > (s64)(now + q->horizon)); } -#define FQDR(reason) QDISC_DROP_FQ_##reason +#define FQDR(reason) QDISC_DROP_##reason static int fq_enqueue(struct sk_buff *skb, struct Qdisc *sch, struct sk_buff **to_free)