netdev - [RFC PATCH net-next 1/4] net: dsa: move the Broadcom tag information in a separate header file

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Date:   Sat, 19 Dec 2020 00:38:49 +0200
From:   Vladimir Oltean <vladimir.oltean@....com>
To:     Florian Fainelli <f.fainelli@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        bcm-kernel-feedback-list@...adcom.com, netdev@...r.kernel.org
Subject: [RFC PATCH net-next 1/4] net: dsa: move the Broadcom tag information in a separate header file

It is a bit strange to see something as specific as Broadcom SYSTEMPORT
bits in the main DSA include file. Move these away into a separate
header, and have the tagger and the SYSTEMPORT driver include them.

Signed-off-by: Vladimir Oltean <vladimir.oltean@....com>
---
 MAINTAINERS                                |  1 +
 drivers/net/ethernet/broadcom/bcmsysport.c |  1 +
 include/linux/dsa/brcm.h                   | 16 ++++++++++++++++
 include/net/dsa.h                          |  6 ------
 net/dsa/tag_brcm.c                         |  1 +
 5 files changed, 19 insertions(+), 6 deletions(-)
 create mode 100644 include/linux/dsa/brcm.h

diff --git a/MAINTAINERS b/MAINTAINERS
index a355db292486..e2d1d852a3a8 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3389,6 +3389,7 @@ L:	openwrt-devel@...ts.openwrt.org (subscribers-only)
 S:	Supported
 F:	Documentation/devicetree/bindings/net/dsa/b53.txt
 F:	drivers/net/dsa/b53/*
+F:	include/linux/dsa/brcm.h
 F:	include/linux/platform_data/b53.h
 
 BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE
diff --git a/drivers/net/ethernet/broadcom/bcmsysport.c b/drivers/net/ethernet/broadcom/bcmsysport.c
index 0fdd19d99d99..82541352b1eb 100644
--- a/drivers/net/ethernet/broadcom/bcmsysport.c
+++ b/drivers/net/ethernet/broadcom/bcmsysport.c
@@ -12,6 +12,7 @@
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/netdevice.h>
+#include <linux/dsa/brcm.h>
 #include <linux/etherdevice.h>
 #include <linux/platform_device.h>
 #include <linux/of.h>
diff --git a/include/linux/dsa/brcm.h b/include/linux/dsa/brcm.h
new file mode 100644
index 000000000000..47545a948784
--- /dev/null
+++ b/include/linux/dsa/brcm.h
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0-only
+ * Copyright (C) 2014 Broadcom Corporation
+ */
+
+/* Included by drivers/net/ethernet/broadcom/bcmsysport.c and
+ * net/dsa/tag_brcm.c
+ */
+#ifndef _NET_DSA_BRCM_H
+#define _NET_DSA_BRCM_H
+
+/* Broadcom tag specific helpers to insert and extract queue/port number */
+#define BRCM_TAG_SET_PORT_QUEUE(p, q)	((p) << 8 | q)
+#define BRCM_TAG_GET_PORT(v)		((v) >> 8)
+#define BRCM_TAG_GET_QUEUE(v)		((v) & 0xff)
+
+#endif
diff --git a/include/net/dsa.h b/include/net/dsa.h
index 4e60d2610f20..af9a4f9ee764 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -873,12 +873,6 @@ static inline int call_dsa_notifiers(unsigned long val, struct net_device *dev,
 }
 #endif
 
-/* Broadcom tag specific helpers to insert and extract queue/port number */
-#define BRCM_TAG_SET_PORT_QUEUE(p, q)	((p) << 8 | q)
-#define BRCM_TAG_GET_PORT(v)		((v) >> 8)
-#define BRCM_TAG_GET_QUEUE(v)		((v) & 0xff)
-
-
 netdev_tx_t dsa_enqueue_skb(struct sk_buff *skb, struct net_device *dev);
 int dsa_port_get_phy_strings(struct dsa_port *dp, uint8_t *data);
 int dsa_port_get_ethtool_phy_stats(struct dsa_port *dp, uint64_t *data);
diff --git a/net/dsa/tag_brcm.c b/net/dsa/tag_brcm.c
index e934dace3922..e2577a7dcbca 100644
--- a/net/dsa/tag_brcm.c
+++ b/net/dsa/tag_brcm.c
@@ -5,6 +5,7 @@
  * Copyright (C) 2014 Broadcom Corporation
  */
 
+#include <linux/dsa/brcm.h>
 #include <linux/etherdevice.h>
 #include <linux/list.h>
 #include <linux/slab.h>
-- 
2.25.1