netdev - [patch net-next 1/5] net: sched: Add helpers to identify classids

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Date:   Wed,  9 Aug 2017 14:30:31 +0200
From:   Jiri Pirko <jiri@...nulli.us>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, jhs@...atatu.com, xiyou.wangcong@...il.com,
        daniel@...earbox.net, mlxsw@...lanox.com, andrew@...n.ch,
        vivien.didelot@...oirfairelinux.com, f.fainelli@...il.com,
        jakub.kicinski@...ronome.com, simon.horman@...ronome.com,
        pieter.jansenvanvuuren@...ronome.com, oss-drivers@...ronome.com,
        ganeshgr@...lsio.com, jeffrey.t.kirsher@...el.com,
        saeedm@...lanox.com, matanb@...lanox.com, leonro@...lanox.com
Subject: [patch net-next 1/5] net: sched: Add helpers to identify classids

From: Jiri Pirko <jiri@...lanox.com>

Offloading drivers need to understand what qdisc class a filter is added
to. Currently they only need to identify ingress, clsact->ingress and
clsact->egress. So provide these helpers.

Signed-off-by: Jiri Pirko <jiri@...lanox.com>
---
 include/net/pkt_sched.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/include/net/pkt_sched.h b/include/net/pkt_sched.h
index 2579c20..259bc19 100644
--- a/include/net/pkt_sched.h
+++ b/include/net/pkt_sched.h
@@ -5,6 +5,7 @@
 #include <linux/ktime.h>
 #include <linux/if_vlan.h>
 #include <net/sch_generic.h>
+#include <uapi/linux/pkt_sched.h>
 
 #define DEFAULT_TX_QUEUE_LEN	1000
 
@@ -132,4 +133,17 @@ static inline unsigned int psched_mtu(const struct net_device *dev)
 	return dev->mtu + dev->hard_header_len;
 }
 
+static inline bool is_classid_clsact_ingress(u32 classid)
+{
+	/* This also returns true for ingress qdisc */
+	return TC_H_MAJ(classid) == TC_H_MAJ(TC_H_CLSACT) &&
+	       TC_H_MIN(classid) != TC_H_MIN(TC_H_MIN_EGRESS);
+}
+
+static inline bool is_classid_clsact_egress(u32 classid)
+{
+	return TC_H_MAJ(classid) == TC_H_MAJ(TC_H_CLSACT) &&
+	       TC_H_MIN(classid) == TC_H_MIN(TC_H_MIN_EGRESS);
+}
+
 #endif
-- 
2.9.3