From: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Date: Mon, 25 Mar 2024 20:47:34 +0000 (+0000)
Subject: net: sched: cls_api: add skip_sw counter
X-Git-Tag: v6.10-rc1~153^2~420^2~2
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=f631ef39d819;p=users%2Fhch%2Fmisc.git

net: sched: cls_api: add skip_sw counter

Maintain a count of skip_sw filters.

This counter is protected by the cb_lock, and is updated
at the same time as offloadcnt.

Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index cefe0c4bdae3..120a4ca6ec9b 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -471,6 +471,7 @@ struct tcf_block {
 	struct flow_block flow_block;
 	struct list_head owner_list;
 	bool keep_dst;
+	atomic_t skipswcnt; /* Number of skip_sw filters */
 	atomic_t offloadcnt; /* Number of oddloaded filters */
 	unsigned int nooffloaddevcnt; /* Number of devs unable to do offload */
 	unsigned int lockeddevcnt; /* Number of devs that require rtnl lock. */
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index ca5676b2668e..397c3d29659c 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -3483,6 +3483,8 @@ static void tcf_block_offload_inc(struct tcf_block *block, u32 *flags)
 	if (*flags & TCA_CLS_FLAGS_IN_HW)
 		return;
 	*flags |= TCA_CLS_FLAGS_IN_HW;
+	if (tc_skip_sw(*flags))
+		atomic_inc(&block->skipswcnt);
 	atomic_inc(&block->offloadcnt);
 }
 
@@ -3491,6 +3493,8 @@ static void tcf_block_offload_dec(struct tcf_block *block, u32 *flags)
 	if (!(*flags & TCA_CLS_FLAGS_IN_HW))
 		return;
 	*flags &= ~TCA_CLS_FLAGS_IN_HW;
+	if (tc_skip_sw(*flags))
+		atomic_dec(&block->skipswcnt);
 	atomic_dec(&block->offloadcnt);
 }