netdev - [PATCH net-next 3/5] net: lan966x: Expose functions that are needed by FDMA

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Date:   Thu, 17 Mar 2022 19:51:57 +0100
From:   Horatiu Vultur <horatiu.vultur@...rochip.com>
To:     <netdev@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
CC:     <davem@...emloft.net>, <kuba@...nel.org>, <robh+dt@...nel.org>,
        <UNGLinuxDriver@...rochip.com>,
        Horatiu Vultur <horatiu.vultur@...rochip.com>
Subject: [PATCH net-next 3/5] net: lan966x: Expose functions that are needed by FDMA

Expose the following functions 'lan966x_hw_offload',
'lan966x_ifh_get_src_port' and 'lan966x_ifh_get_timestamp' in
lan966x_main.h so they can be accessed by FDMA.

Signed-off-by: Horatiu Vultur <horatiu.vultur@...rochip.com>
---
 drivers/net/ethernet/microchip/lan966x/lan966x_main.c | 10 +++-------
 drivers/net/ethernet/microchip/lan966x/lan966x_main.h |  8 ++++++++
 2 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_main.c b/drivers/net/ethernet/microchip/lan966x/lan966x_main.c
index 4240db708886..2c82f847ae6d 100644
--- a/drivers/net/ethernet/microchip/lan966x/lan966x_main.c
+++ b/drivers/net/ethernet/microchip/lan966x/lan966x_main.c
@@ -24,9 +24,6 @@
 #define XTR_NOT_READY			0x07000080U
 #define XTR_VALID_BYTES(x)		(4 - (((x) >> 24) & 3))
 
-#define READL_SLEEP_US			10
-#define READL_TIMEOUT_US		100000000
-
 #define IO_RANGES 2
 
 static const struct of_device_id lan966x_match[] = {
@@ -430,8 +427,7 @@ bool lan966x_netdevice_check(const struct net_device *dev)
 	return dev->netdev_ops == &lan966x_port_netdev_ops;
 }
 
-static bool lan966x_hw_offload(struct lan966x *lan966x, u32 port,
-			       struct sk_buff *skb)
+bool lan966x_hw_offload(struct lan966x *lan966x, u32 port, struct sk_buff *skb)
 {
 	u32 val;
 
@@ -512,7 +508,7 @@ static int lan966x_rx_frame_word(struct lan966x *lan966x, u8 grp, u32 *rval)
 	}
 }
 
-static void lan966x_ifh_get_src_port(void *ifh, u64 *src_port)
+void lan966x_ifh_get_src_port(void *ifh, u64 *src_port)
 {
 	packing(ifh, src_port, IFH_POS_SRCPORT + IFH_WID_SRCPORT - 1,
 		IFH_POS_SRCPORT, IFH_LEN * 4, UNPACK, 0);
@@ -524,7 +520,7 @@ static void lan966x_ifh_get_len(void *ifh, u64 *len)
 		IFH_POS_LEN, IFH_LEN * 4, UNPACK, 0);
 }
 
-static void lan966x_ifh_get_timestamp(void *ifh, u64 *timestamp)
+void lan966x_ifh_get_timestamp(void *ifh, u64 *timestamp)
 {
 	packing(ifh, timestamp, IFH_POS_TIMESTAMP + IFH_WID_TIMESTAMP - 1,
 		IFH_POS_TIMESTAMP, IFH_LEN * 4, UNPACK, 0);
diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_main.h b/drivers/net/ethernet/microchip/lan966x/lan966x_main.h
index ae282da1da74..b692c612f235 100644
--- a/drivers/net/ethernet/microchip/lan966x/lan966x_main.h
+++ b/drivers/net/ethernet/microchip/lan966x/lan966x_main.h
@@ -17,6 +17,9 @@
 #define TABLE_UPDATE_SLEEP_US		10
 #define TABLE_UPDATE_TIMEOUT_US		100000
 
+#define READL_SLEEP_US			10
+#define READL_TIMEOUT_US		100000000
+
 #define LAN966X_BUFFER_CELL_SZ		64
 #define LAN966X_BUFFER_MEMORY		(160 * 1024)
 #define LAN966X_BUFFER_MIN_SZ		60
@@ -195,6 +198,11 @@ bool lan966x_netdevice_check(const struct net_device *dev);
 void lan966x_register_notifier_blocks(void);
 void lan966x_unregister_notifier_blocks(void);
 
+bool lan966x_hw_offload(struct lan966x *lan966x, u32 port, struct sk_buff *skb);
+
+void lan966x_ifh_get_src_port(void *ifh, u64 *src_port);
+void lan966x_ifh_get_timestamp(void *ifh, u64 *timestamp);
+
 void lan966x_stats_get(struct net_device *dev,
 		       struct rtnl_link_stats64 *stats);
 int lan966x_stats_init(struct lan966x *lan966x);
-- 
2.33.0