Merge branch 'fs_enet-cleanup'

Maxime Chevallier says:

====================
net: ethernet: fs_enet: Cleanup and phylink conversion

This is V3 of a series that cleans-up fs_enet, with the ultimate goal of
converting it to phylink (patch 8).

The main changes compared to V2 are :
 - Reviewed-by tags from Andrew were gathered
 - Patch 5 now includes the removal of now unused includes, thanks
   Andrew for spotting this
 - Patch 4 is new, it reworks the adjust_link to move the spinlock
   acquisition to a more suitable location. Although this dissapears in
   the actual phylink port, it makes the phylink conversion clearer on
   that point
 - Patch 8 includes fixes in the tx_timeout cancellation, to prevent
   taking rtnl twice when canceling a pending tx_timeout. Thanks Jakub
   for spotting this.

Link to V2: https://lore.kernel.org/netdev/20240829161531.610874-1-maxime.chevallier@bootlin.com/
Link to V1: https://lore.kernel.org/netdev/20240828095103.132625-1-maxime.chevallier@bootlin.com/
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/freescale/fs_enet/Kconfig

@@ -3,7 +3,7 @@ config FS_ENET
 	tristate "Freescale Ethernet Driver"
 	depends on NET_VENDOR_FREESCALE && (CPM1 || CPM2 || PPC_MPC512x)
 	select MII
-	select PHYLIB
+	select PHYLINK
 
 config FS_ENET_MPC5121_FEC
 	def_bool y if (FS_ENET && PPC_MPC512x)

drivers/net/ethernet/freescale/fs_enet/fs_enet.h

@@ -3,11 +3,11 @@
 #define FS_ENET_H
 
 #include <linux/clk.h>
-#include <linux/mii.h>
 #include <linux/netdevice.h>
 #include <linux/types.h>
 #include <linux/list.h>
 #include <linux/phy.h>
+#include <linux/phylink.h>
 #include <linux/dma-mapping.h>
 
 #ifdef CONFIG_CPM1
@@ -77,8 +77,8 @@ struct fs_ops {
 	void (*free_bd)(struct net_device *dev);
 	void (*cleanup_data)(struct net_device *dev);
 	void (*set_multicast_list)(struct net_device *dev);
-	void (*adjust_link)(struct net_device *dev);
-	void (*restart)(struct net_device *dev);
+	void (*restart)(struct net_device *dev, phy_interface_t interface,
+			int speed, int duplex);
 	void (*stop)(struct net_device *dev);
 	void (*napi_clear_event)(struct net_device *dev);
 	void (*napi_enable)(struct net_device *dev);
@@ -93,14 +93,6 @@ struct fs_ops {
 	void (*tx_restart)(struct net_device *dev);
 };
 
-struct phy_info {
-	unsigned int id;
-	const char *name;
-	void (*startup) (struct net_device * dev);
-	void (*shutdown) (struct net_device * dev);
-	void (*ack_int) (struct net_device * dev);
-};
-
 /* The FEC stores dest/src/type, data, and checksum for receive packets.
  */
 #define MAX_MTU 1508		/* Allow fullsized pppoe packets over VLAN */
@@ -122,15 +114,9 @@ struct fs_platform_info {
 
 	u32 dpram_offset;
 
-	struct device_node *phy_node;
-
 	int rx_ring, tx_ring;	/* number of buffers on rx	*/
 	int rx_copybreak;	/* limit we copy small frames	*/
 	int napi_weight;	/* NAPI weight			*/
-
-	int use_rmii;		/* use RMII mode		*/
-
-	struct clk *clk_per;	/* 'per' clock for register access */
 };
 
 struct fs_enet_private {
@@ -154,14 +140,11 @@ struct fs_enet_private {
 	cbd_t __iomem *cur_rx;
 	cbd_t __iomem *cur_tx;
 	int tx_free;
-	const struct phy_info *phy;
 	u32 msg_enable;
-	struct mii_if_info mii_if;
-	unsigned int last_mii_status;
+	struct phylink *phylink;
+	struct phylink_config phylink_config;
 	int interrupt;
 
-	int oldduplex, oldspeed, oldlink;	/* current settings */
-
 	/* event masks */
 	u32 ev_napi;		/* mask of NAPI events */
 	u32 ev;			/* event mask          */

drivers/net/ethernet/freescale/fs_enet/mac-fcc.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * FCC driver for Motorola MPC82xx (PQ2).
  *
@@ -6,10 +7,6 @@
  *
  * 2005 (c) MontaVista Software, Inc.
  * Vitaly Bordug <vbordug@ru.mvista.com>
- *
- * This file is licensed under the terms of the GNU General Public License
- * version 2. This program is licensed "as is" without any warranty of any
- * kind, whether express or implied.
  */
 
 #include <linux/module.h>
@@ -25,7 +22,6 @@
 #include <linux/etherdevice.h>
 #include <linux/skbuff.h>
 #include <linux/spinlock.h>
-#include <linux/mii.h>
 #include <linux/ethtool.h>
 #include <linux/bitops.h>
 #include <linux/fs.h>
@@ -239,7 +235,8 @@ static void set_multicast_list(struct net_device *dev)
 		set_promiscuous_mode(dev);
 }
 
-static void restart(struct net_device *dev)
+static void restart(struct net_device *dev, phy_interface_t interface,
+		    int speed, int duplex)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
 	const struct fs_platform_info *fpi = fep->fpi;
@@ -363,8 +360,8 @@ static void restart(struct net_device *dev)
 	fs_init_bds(dev);
 
 	/* adjust to speed (for RMII mode) */
-	if (fpi->use_rmii) {
-		if (dev->phydev->speed == 100)
+	if (interface == PHY_INTERFACE_MODE_RMII) {
+		if (speed == SPEED_100)
 			C8(fcccp, fcc_gfemr, 0x20);
 		else
 			S8(fcccp, fcc_gfemr, 0x20);
@@ -386,11 +383,11 @@ static void restart(struct net_device *dev)
 
 	W32(fccp, fcc_fpsmr, FCC_PSMR_ENCRC);
 
-	if (fpi->use_rmii)
+	if (interface == PHY_INTERFACE_MODE_RMII)
 		S32(fccp, fcc_fpsmr, FCC_PSMR_RMII);
 
 	/* adjust to duplex mode */
-	if (dev->phydev->duplex)
+	if (duplex == DUPLEX_FULL)
 		S32(fccp, fcc_fpsmr, FCC_PSMR_FDE | FCC_PSMR_LPB);
 	else
 		C32(fccp, fcc_fpsmr, FCC_PSMR_FDE | FCC_PSMR_LPB);

drivers/net/ethernet/freescale/fs_enet/mac-fec.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Freescale Ethernet controllers
  *
@@ -6,10 +7,6 @@
  *
  * 2005 (c) MontaVista Software, Inc.
  * Vitaly Bordug <vbordug@ru.mvista.com>
- *
- * This file is licensed under the terms of the GNU General Public License
- * version 2. This program is licensed "as is" without any warranty of any
- * kind, whether express or implied.
  */
 
 #include <linux/module.h>
@@ -26,7 +23,6 @@
 #include <linux/etherdevice.h>
 #include <linux/skbuff.h>
 #include <linux/spinlock.h>
-#include <linux/mii.h>
 #include <linux/ethtool.h>
 #include <linux/bitops.h>
 #include <linux/fs.h>
@@ -224,7 +220,8 @@ static void set_multicast_list(struct net_device *dev)
 		set_promiscuous_mode(dev);
 }
 
-static void restart(struct net_device *dev)
+static void restart(struct net_device *dev, phy_interface_t interface,
+		    int speed, int duplex)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
 	struct fec __iomem *fecp = fep->fec.fecp;
@@ -306,13 +303,13 @@ static void restart(struct net_device *dev)
 	 * Only set MII/RMII mode - do not touch maximum frame length
 	 * configured before.
 	 */
-	FS(fecp, r_cntrl, fpi->use_rmii ?
-			FEC_RCNTRL_RMII_MODE : FEC_RCNTRL_MII_MODE);
+	FS(fecp, r_cntrl, interface == PHY_INTERFACE_MODE_RMII ?
+			  FEC_RCNTRL_RMII_MODE : FEC_RCNTRL_MII_MODE);
 #endif
 	/*
 	 * adjust to duplex mode
 	 */
-	if (dev->phydev->duplex) {
+	if (duplex == DUPLEX_FULL) {
 		FC(fecp, r_cntrl, FEC_RCNTRL_DRT);
 		FS(fecp, x_cntrl, FEC_TCNTRL_FDEN);	/* FD enable */
 	} else {

drivers/net/ethernet/freescale/fs_enet/mac-scc.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Ethernet on Serial Communications Controller (SCC) driver for Motorola MPC8xx and MPC82xx.
  *
@@ -6,10 +7,6 @@
  *
  * 2005 (c) MontaVista Software, Inc.
  * Vitaly Bordug <vbordug@ru.mvista.com>
- *
- * This file is licensed under the terms of the GNU General Public License
- * version 2. This program is licensed "as is" without any warranty of any
- * kind, whether express or implied.
  */
 
 #include <linux/module.h>
@@ -25,7 +22,6 @@
 #include <linux/etherdevice.h>
 #include <linux/skbuff.h>
 #include <linux/spinlock.h>
-#include <linux/mii.h>
 #include <linux/ethtool.h>
 #include <linux/bitops.h>
 #include <linux/fs.h>
@@ -230,7 +226,8 @@ static void set_multicast_list(struct net_device *dev)
  * change.  This only happens when switching between half and full
  * duplex.
  */
-static void restart(struct net_device *dev)
+static void restart(struct net_device *dev, phy_interface_t interface,
+		    int speed, int duplex)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
 	scc_t __iomem *sccp = fep->scc.sccp;
@@ -341,7 +338,7 @@ static void restart(struct net_device *dev)
 	W16(sccp, scc_psmr, SCC_PSMR_ENCRC | SCC_PSMR_NIB22);
 
 	/* Set full duplex mode if needed */
-	if (dev->phydev->duplex)
+	if (duplex == DUPLEX_FULL)
 		S16(sccp, scc_psmr, SCC_PSMR_LPB | SCC_PSMR_FDE);
 
 	/* Restore multicast and promiscuous settings */

drivers/net/ethernet/freescale/fs_enet/mii-bitbang.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Combined Ethernet driver for Motorola MPC8xx and MPC82xx.
  *
@@ -6,10 +7,6 @@
  *
  * 2005 (c) MontaVista Software, Inc.
  * Vitaly Bordug <vbordug@ru.mvista.com>
- *
- * This file is licensed under the terms of the GNU General Public License
- * version 2. This program is licensed "as is" without any warranty of any
- * kind, whether express or implied.
  */
 
 #include <linux/module.h>

drivers/net/ethernet/freescale/fs_enet/mii-fec.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Combined Ethernet driver for Motorola MPC8xx and MPC82xx.
  *
@@ -6,10 +7,6 @@
  *
  * 2005 (c) MontaVista Software, Inc.
  * Vitaly Bordug <vbordug@ru.mvista.com>
- *
- * This file is licensed under the terms of the GNU General Public License
- * version 2. This program is licensed "as is" without any warranty of any
- * kind, whether express or implied.
  */
 
 #include <linux/module.h>