netdev - [net-next 12/15] net: Add IANA_VXLAN_UDP_PORT definition to vxlan header file

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Date:   Wed, 20 Mar 2019 16:39:56 -0700
From:   Saeed Mahameed <saeedm@...lanox.com>
To:     "David S. Miller" <davem@...emloft.net>
Cc:     netdev@...r.kernel.org, Moshe Shemesh <moshe@...lanox.com>,
        Or Gerlitz <ogerlitz@...lanox.com>,
        John Hurley <john.hurley@...ronome.com>,
        Jakub Kicinski <jakub.kicinski@...ronome.com>,
        Yunsheng Lin <linyunsheng@...wei.com>,
        Peng Li <lipeng321@...wei.com>,
        Tariq Toukan <tariqt@...lanox.com>,
        Saeed Mahameed <saeedm@...lanox.com>
Subject: [net-next 12/15] net: Add IANA_VXLAN_UDP_PORT definition to vxlan header file

From: Moshe Shemesh <moshe@...lanox.com>

Added IANA_VXLAN_UDP_PORT (4789) definition to vxlan header file so it
can be used by drivers instead of local definition.
Updated drivers which locally defined it as 4789 to use it.

Signed-off-by: Moshe Shemesh <moshe@...lanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@...lanox.com>
Cc: John Hurley <john.hurley@...ronome.com>
Cc: Jakub Kicinski <jakub.kicinski@...ronome.com>
Cc: Yunsheng Lin <linyunsheng@...wei.com>
Cc: Peng Li <lipeng321@...wei.com>
Reviewed-by: Tariq Toukan <tariqt@...lanox.com>
Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
---
 drivers/net/ethernet/hisilicon/hns3/hns3_enet.c     | 4 ++--
 drivers/net/ethernet/mellanox/mlx5/core/lib/vxlan.c | 5 +++--
 drivers/net/ethernet/netronome/nfp/flower/main.h    | 2 +-
 include/net/vxlan.h                                 | 2 ++
 4 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index 1c1f17ec6be2..1f4d181f169f 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -826,12 +826,12 @@ static void hns3_set_l2l3l4_len(struct sk_buff *skb, u8 ol4_proto,
  */
 static bool hns3_tunnel_csum_bug(struct sk_buff *skb)
 {
-#define IANA_VXLAN_PORT	4789
 	union l4_hdr_info l4;
 
 	l4.hdr = skb_transport_header(skb);
 
-	if (!(!skb->encapsulation && l4.udp->dest == htons(IANA_VXLAN_PORT)))
+	if (!(!skb->encapsulation &&
+	      l4.udp->dest == htons(IANA_VXLAN_UDP_PORT)))
 		return false;
 
 	skb_checksum_help(skb);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lib/vxlan.c b/drivers/net/ethernet/mellanox/mlx5/core/lib/vxlan.c
index 9a8fd762167b..b9d4f4e19ff9 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lib/vxlan.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/vxlan.c
@@ -33,6 +33,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/mlx5/driver.h>
+#include <net/vxlan.h>
 #include "mlx5_core.h"
 #include "vxlan.h"
 
@@ -204,8 +205,8 @@ struct mlx5_vxlan *mlx5_vxlan_create(struct mlx5_core_dev *mdev)
 	spin_lock_init(&vxlan->lock);
 	hash_init(vxlan->htable);
 
-	/* Hardware adds 4789 by default */
-	mlx5_vxlan_add_port(vxlan, 4789);
+	/* Hardware adds 4789 (IANA_VXLAN_UDP_PORT) by default */
+	mlx5_vxlan_add_port(vxlan, IANA_VXLAN_UDP_PORT);
 
 	return vxlan;
 }
diff --git a/drivers/net/ethernet/netronome/nfp/flower/main.h b/drivers/net/ethernet/netronome/nfp/flower/main.h
index 7afe66eff684..f214759d485b 100644
--- a/drivers/net/ethernet/netronome/nfp/flower/main.h
+++ b/drivers/net/ethernet/netronome/nfp/flower/main.h
@@ -34,7 +34,7 @@ struct nfp_app;
 #define NFP_FL_MASK_REUSE_TIME_NS	40000
 #define NFP_FL_MASK_ID_LOCATION		1
 
-#define NFP_FL_VXLAN_PORT		4789
+#define NFP_FL_VXLAN_PORT		IANA_VXLAN_UDP_PORT
 #define NFP_FL_GENEVE_PORT		GENEVE_UDP_PORT
 
 /* Extra features bitmap. */
diff --git a/include/net/vxlan.h b/include/net/vxlan.h
index 00254a58824b..83b5999a2587 100644
--- a/include/net/vxlan.h
+++ b/include/net/vxlan.h
@@ -8,6 +8,8 @@
 #include <net/rtnetlink.h>
 #include <net/switchdev.h>
 
+#define IANA_VXLAN_UDP_PORT     4789
+
 /* VXLAN protocol (RFC 7348) header:
  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  * |R|R|R|R|I|R|R|R|               Reserved                        |
-- 
2.20.1