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Message-ID: <20231219181623.3845083-3-victor@mojatatu.com>
Date: Tue, 19 Dec 2023 15:16:20 -0300
From: Victor Nogueira <victor@...atatu.com>
To: jhs@...atatu.com,
davem@...emloft.net,
edumazet@...gle.com,
kuba@...nel.org,
pabeni@...hat.com,
xiyou.wangcong@...il.com,
jiri@...nulli.us
Cc: mleitner@...hat.com,
vladbu@...dia.com,
paulb@...dia.com,
pctammela@...atatu.com,
netdev@...r.kernel.org,
kernel@...atatu.com
Subject: [PATCH net-next v8 2/5] net/sched: cls_api: Expose tc block to the datapath
The datapath can now find the block of the port in which the packet arrived
at.
In the next patch we show a possible usage of this patch in a new
version of mirred that multicasts to all ports except for the port in
which the packet arrived on.
Co-developed-by: Jamal Hadi Salim <jhs@...atatu.com>
Signed-off-by: Jamal Hadi Salim <jhs@...atatu.com>
Co-developed-by: Pedro Tammela <pctammela@...atatu.com>
Signed-off-by: Pedro Tammela <pctammela@...atatu.com>
Signed-off-by: Victor Nogueira <victor@...atatu.com>
---
include/net/sch_generic.h | 2 ++
net/sched/cls_api.c | 3 ++-
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index 248692ec3697..3b2c5b03c4cc 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -485,6 +485,8 @@ struct tcf_block {
struct mutex proto_destroy_lock; /* Lock for proto_destroy hashtable. */
};
+struct tcf_block *tcf_block_lookup(struct net *net, u32 block_index);
+
static inline bool lockdep_tcf_chain_is_locked(struct tcf_chain *chain)
{
return lockdep_is_held(&chain->filter_chain_lock);
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index 6020a32ecff2..618f68733012 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -1011,12 +1011,13 @@ static struct tcf_block *tcf_block_create(struct net *net, struct Qdisc *q,
return block;
}
-static struct tcf_block *tcf_block_lookup(struct net *net, u32 block_index)
+struct tcf_block *tcf_block_lookup(struct net *net, u32 block_index)
{
struct tcf_net *tn = net_generic(net, tcf_net_id);
return idr_find(&tn->idr, block_index);
}
+EXPORT_SYMBOL(tcf_block_lookup);
static struct tcf_block *tcf_block_refcnt_get(struct net *net, u32 block_index)
{
--
2.25.1
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