netdev - [RFC PATCH net-next 5/6 v2] net/sched: em_meta: add match on tc recirc id skb extension

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Date:   Tue, 29 Jan 2019 10:02:05 +0200
From:   Paul Blakey <paulb@...lanox.com>
To:     Guy Shattah <sguy@...lanox.com>,
        Marcelo Leitner <mleitner@...hat.com>,
        Aaron Conole <aconole@...hat.com>,
        John Hurley <john.hurley@...ronome.com>,
        Simon Horman <simon.horman@...ronome.com>,
        Justin Pettit <jpettit@....org>,
        Gregory Rose <gvrose8192@...il.com>,
        Eelco Chaudron <echaudro@...hat.com>,
        Flavio Leitner <fbl@...hat.com>,
        Florian Westphal <fwestpha@...hat.com>,
        Jiri Pirko <jiri@...nulli.us>, Rashid Khan <rkhan@...hat.com>,
        Sushil Kulkarni <sukulkar@...hat.com>,
        Andy Gospodarek <andrew.gospodarek@...adcom.com>,
        Roi Dayan <roid@...lanox.com>,
        Yossi Kuperman <yossiku@...lanox.com>,
        Or Gerlitz <ogerlitz@...lanox.com>,
        Rony Efraim <ronye@...lanox.com>,
        "davem@...emloft.net" <davem@...emloft.net>, netdev@...r.kernel.org
Cc:     Paul Blakey <paulb@...lanox.com>
Subject: [RFC PATCH net-next 5/6 v2] net/sched: em_meta: add match on tc recirc id skb extension

Signed-off-by: Paul Blakey <paulb@...lanox.com>
---
 include/uapi/linux/tc_ematch/tc_em_meta.h | 1 +
 net/sched/em_meta.c                       | 8 ++++++++
 2 files changed, 9 insertions(+)

diff --git a/include/uapi/linux/tc_ematch/tc_em_meta.h b/include/uapi/linux/tc_ematch/tc_em_meta.h
index cf30b5b..25a6fb8 100644
--- a/include/uapi/linux/tc_ematch/tc_em_meta.h
+++ b/include/uapi/linux/tc_ematch/tc_em_meta.h
@@ -81,6 +81,7 @@ enum {
  	TCF_META_ID_SK_WRITE_PENDING,
 	TCF_META_ID_VLAN_TAG,
 	TCF_META_ID_RXHASH,
+	TCF_META_ID_TCRECIRC,
 	__TCF_META_ID_MAX
 };
 #define TCF_META_ID_MAX (__TCF_META_ID_MAX - 1)
diff --git a/net/sched/em_meta.c b/net/sched/em_meta.c
index d6e9711..041e0b3 100644
--- a/net/sched/em_meta.c
+++ b/net/sched/em_meta.c
@@ -245,6 +245,13 @@ static inline int var_dev(struct net_device *dev, struct meta_obj *dst)
 	dst->value = skb->tc_index;
 }
 
+META_COLLECTOR(int_tcrecirc)
+{
+	uint32_t *recirc = skb_ext_find(skb, SKB_EXT_TC_RECIRC_ID);
+
+	dst->value = recirc? *recirc : 0;
+}
+
 /**************************************************************************
  * Routing
  **************************************************************************/
@@ -638,6 +645,7 @@ struct meta_ops {
 		[META_ID(MACLEN)]		= META_FUNC(int_maclen),
 		[META_ID(NFMARK)]		= META_FUNC(int_mark),
 		[META_ID(TCINDEX)]		= META_FUNC(int_tcindex),
+		[META_ID(TCRECIRC)]		= META_FUNC(int_tcrecirc),
 		[META_ID(RTCLASSID)]		= META_FUNC(int_rtclassid),
 		[META_ID(RTIIF)]		= META_FUNC(int_rtiif),
 		[META_ID(SK_FAMILY)]		= META_FUNC(int_sk_family),
-- 
1.8.3.1