netdev - [PATCH RFC net-next 0/3] net: sched: Make tc-related drop reason more flexible for remaining qdiscs

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Date: Sat, 18 Nov 2023 17:37:51 -0300
From: Victor Nogueira <victor@...atatu.com>
To: jhs@...atatu.com,
	xiyou.wangcong@...il.com,
	jiri@...nulli.us,
	davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	daniel@...earbox.net
Cc: netdev@...r.kernel.org,
	kernel@...atatu.com
Subject: [PATCH RFC net-next 0/3] net: sched: Make tc-related drop reason more flexible for remaining qdiscs

This patch builds on Daniel's patch[1] to add initial support of tc drop
reason. The main goal is to distinguish between policy and error drops for
the remainder of the egress qdiscs (other than clsact).
The drop reason is set by cls_api and act_api in the tc skb cb in case
any error occurred in the data path.

Also add new skb drop reasons that are idiosyncratic to TC.

[1] https://lore.kernel.org/all/20231009092655.22025-1-daniel@iogearbox.net

Victor Nogueira (3):
  net: sched: Move drop_reason to struct tc_skb_cb
  net: sched: Make tc-related drop reason more flexible for remaining
    qdiscs
  net: sched: Add initial TC error skb drop reasons

 include/net/dropreason-core.h | 30 ++++++++++++++++++++---
 include/net/pkt_cls.h         |  6 -----
 include/net/pkt_sched.h       | 18 --------------
 include/net/sch_generic.h     | 46 ++++++++++++++++++++++++++++++++++-
 net/core/dev.c                | 11 ++++++---
 net/sched/act_api.c           |  3 ++-
 net/sched/cls_api.c           | 28 ++++++++++++---------
 7 files changed, 98 insertions(+), 44 deletions(-)

-- 
2.25.1