From 194730a9beb52d2b030ea45e12d94868d4a0e6fd Mon Sep 17 00:00:00 2001
From: Guvenc Gulce <guvenc@linux.ibm.com>
Date: Wed, 16 Jun 2021 16:52:58 +0200
Subject: net/smc: Make SMC statistics network namespace aware

Make the gathered SMC statistics network namespace aware, for each
namespace collect an own set of statistic information.

Signed-off-by: Guvenc Gulce <guvenc@linux.ibm.com>
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/net_namespace.h |  4 ++++
 include/net/netns/smc.h     | 16 ++++++++++++++++
 2 files changed, 20 insertions(+)
 create mode 100644 include/net/netns/smc.h

(limited to 'include')

diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h
index fa5887143f0d..befc5b93f311 100644
--- a/include/net/net_namespace.h
+++ b/include/net/net_namespace.h
@@ -32,6 +32,7 @@
 #include <net/netns/mpls.h>
 #include <net/netns/can.h>
 #include <net/netns/xdp.h>
+#include <net/netns/smc.h>
 #include <net/netns/bpf.h>
 #include <linux/ns_common.h>
 #include <linux/idr.h>
@@ -170,6 +171,9 @@ struct net {
 	struct sock		*crypto_nlsk;
 #endif
 	struct sock		*diag_nlsk;
+#if IS_ENABLED(CONFIG_SMC)
+	struct netns_smc	smc;
+#endif
 } __randomize_layout;
 
 #include <linux/seq_file_net.h>
diff --git a/include/net/netns/smc.h b/include/net/netns/smc.h
new file mode 100644
index 000000000000..ea8a9cf2619b
--- /dev/null
+++ b/include/net/netns/smc.h
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __NETNS_SMC_H__
+#define __NETNS_SMC_H__
+#include <linux/mutex.h>
+#include <linux/percpu.h>
+
+struct smc_stats_rsn;
+struct smc_stats;
+struct netns_smc {
+	/* per cpu counters for SMC */
+	struct smc_stats __percpu	*smc_stats;
+	/* protect fback_rsn */
+	struct mutex			mutex_fback_rsn;
+	struct smc_stats_rsn		*fback_rsn;
+};
+#endif
-- 
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