kernel: delete Linux 5.4 config and patches

As the upcoming release will be based on Linux 5.10 only, remove all
kernel configuration as well as patches for Linux 5.4.
There were no targets still actively using Linux 5.4.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(cherry picked from commit 3a14580411adfb75f9a44eded9f41245b9e44606)

1 files changed, 0 insertions, 385 deletions

diff --git a/target/linux/layerscape/patches-5.4/701-net-0401-fsl_qbman-Framework-for-enabling-Link-status-notific.patch b/target/linux/layerscape/patches-5.4/701-net-0401-fsl_qbman-Framework-for-enabling-Link-status-notific.patch
deleted file mode 100644
index b4767511f4..0000000000
--- a/target/linux/layerscape/patches-5.4/701-net-0401-fsl_qbman-Framework-for-enabling-Link-status-notific.patch
+++ /dev/null
@@ -1,385 +0,0 @@
-From 136d46d2fa27815cc4cc3a57d5e3d54523028768 Mon Sep 17 00:00:00 2001
-From: Sachin Saxena <sachin.saxena@nxp.com>
-Date: Thu, 19 Dec 2019 12:57:35 +0530
-Subject: [PATCH] fsl_qbman: Framework for enabling Link status notification
-
- -  This will enable link update event notification for
-    user space USDPAA application.
-
-Signed-off-by: Sachin Saxena <sachin.saxena@nxp.com>
-DPDK-2128
-(cherry picked from commit fb53c813a779cc3fc28c8ed3fc8bc0dde24db0ea)
----
- drivers/staging/fsl_qbman/Makefile     |   4 +
- drivers/staging/fsl_qbman/fsl_usdpaa.c | 278 ++++++++++++++++++++++++++++++++-
- include/linux/fsl_usdpaa.h             |  32 ++++
- 3 files changed, 313 insertions(+), 1 deletion(-)
-
---- a/drivers/staging/fsl_qbman/Makefile
-+++ b/drivers/staging/fsl_qbman/Makefile
-@@ -1,5 +1,9 @@
- subdir-ccflags-y := -Werror
- 
-+# Include netcomm SW specific definitions
-+include $(srctree)/drivers/net/ethernet/freescale/sdk_fman/ncsw_config.mk
-+ccflags-y += -I$(NET_DPA)
-+
- # Common
- obj-$(CONFIG_FSL_SDK_DPA)		+= dpa_alloc.o
- obj-$(CONFIG_FSL_SDK_DPA)	+= qbman_driver.o
---- a/drivers/staging/fsl_qbman/fsl_usdpaa.c
-+++ b/drivers/staging/fsl_qbman/fsl_usdpaa.c
-@@ -18,6 +18,8 @@
- #include <linux/slab.h>
- #include <linux/mman.h>
- #include <linux/of_reserved_mem.h>
-+#include <linux/eventfd.h>
-+#include <linux/fdtable.h>
- 
- #if !(defined(CONFIG_ARM) || defined(CONFIG_ARM64))
- #include <mm/mmu_decl.h>
-@@ -27,6 +29,26 @@
- #include <linux/fsl_usdpaa.h>
- #include "bman_low.h"
- #include "qman_low.h"
-+/* Headers requires for
-+ * Link status support
-+ */
-+#include <linux/device.h>
-+#include <linux/of_mdio.h>
-+#include "mac.h"
-+#include "dpaa_eth_common.h"
-+
-+/* Private data for Proxy Interface */
-+struct dpa_proxy_priv_s {
-+	struct mac_device	*mac_dev;
-+	struct eventfd_ctx	*efd_ctx;
-+};
-+/* Interface Helpers */
-+static inline struct device *get_dev_ptr(char *if_name);
-+static void phy_link_updates(struct net_device *net_dev);
-+/* IOCTL handlers */
-+static inline int ioctl_usdpaa_get_link_status(char *if_name);
-+static int ioctl_en_if_link_status(struct usdpaa_ioctl_link_status *args);
-+static int ioctl_disable_if_link_status(char *if_name);
- 
- /* Physical address range of the memory reservation, exported for mm/mem.c */
- static u64 phys_start;
-@@ -556,7 +578,6 @@ static bool check_portal_channel(void *c
- 
- 
- 
--
- static int usdpaa_release(struct inode *inode, struct file *filp)
- {
- 	int err = 0;
-@@ -1656,6 +1677,220 @@ found:
- 	return 0;
- }
- 
-+
-+static inline struct device *get_dev_ptr(char *if_name)
-+{
-+	struct device *dev;
-+	char node[NODE_NAME_LEN];
-+
-+	sprintf(node, "soc:fsl,dpaa:%s",if_name);
-+	dev = bus_find_device_by_name(&platform_bus_type, NULL, node);
-+	if (dev == NULL) {
-+		pr_err(KBUILD_MODNAME "IF %s not found\n", if_name);
-+		return NULL;
-+	}
-+	pr_debug("%s: found dev 0x%lX  for If %s ,dev->platform_data %p\n",
-+			  __func__, (unsigned long)dev,
-+			  if_name, dev->platform_data);
-+
-+	return dev;
-+}
-+
-+/* This function will return Current link status of the device
-+ * '1' if Link is UP, '0' otherwise.
-+ *
-+ * Input parameter:
-+ * if_name: Interface node name
-+ *
-+ */
-+static inline int ioctl_usdpaa_get_link_status(char *if_name)
-+{
-+	struct net_device *net_dev = NULL;
-+	struct device *dev;
-+
-+	dev = get_dev_ptr(if_name);
-+	if (dev == NULL)
-+		return -ENODEV;
-+	net_dev = dev->platform_data;
-+	if (net_dev == NULL)
-+		return -ENODEV;
-+
-+	if (test_bit(__LINK_STATE_NOCARRIER, &net_dev->state))
-+		return 0; /* Link is DOWN */
-+	else
-+		return 1; /* Link is UP */
-+}
-+
-+
-+/* Link Status Callback Function
-+ * This function will be resgitered to PHY framework to get
-+ * Link update notifications and should be responsible for waking up
-+ * user space task when there is a link update notification.
-+ */
-+static void phy_link_updates(struct net_device *net_dev)
-+{
-+	struct dpa_proxy_priv_s *priv = NULL;
-+
-+	pr_debug("%s: Link '%s': Speed '%d-Mbps': Autoneg '%d': Duplex '%d'\n",
-+		net_dev->name,
-+		ioctl_usdpaa_get_link_status(net_dev->name)?"UP":"DOWN",
-+		net_dev->phydev->speed,
-+		net_dev->phydev->autoneg,
-+		net_dev->phydev->duplex);
-+
-+	/* Wake up the user space context to notify PHY update */
-+	priv = netdev_priv(net_dev);
-+	eventfd_signal(priv->efd_ctx, 1);
-+}
-+
-+
-+/* IOCTL handler for enabling Link status request for a given interface
-+ * Input parameters:
-+ * args->if_name:	This the network interface node name as defind in
-+ *			device tree file. Currently, it has format of
-+ *			"ethernet@x" type for each interface.
-+ * args->efd:		The eventfd value which should be waked up when
-+ *			there is any link update received.
-+ */
-+static int ioctl_en_if_link_status(struct usdpaa_ioctl_link_status *args)
-+{
-+	struct net_device *net_dev = NULL;
-+	struct dpa_proxy_priv_s *priv = NULL;
-+	struct device *dev;
-+	struct mac_device *mac_dev;
-+	struct proxy_device *proxy_dev;
-+	struct task_struct *userspace_task = NULL;
-+	struct file *efd_file = NULL;
-+
-+	dev = get_dev_ptr(args->if_name);
-+	if (dev == NULL)
-+		return -ENODEV;
-+	/* Utilize dev->platform_data to save netdevice
-+	   pointer as it will not be registered */
-+	if (dev->platform_data) {
-+		pr_debug("%s: IF %s already initialized\n",
-+			__func__, args->if_name);
-+		/* This will happen when application is not able to initiate
-+		 * cleanup in last run. We still need to save the new
-+		 * eventfd context.
-+		 */
-+		net_dev = dev->platform_data;
-+		priv = netdev_priv(net_dev);
-+
-+		/* Get current task context from which IOCTL was called */
-+		userspace_task = current;
-+
-+		rcu_read_lock();
-+		efd_file = fcheck_files(userspace_task->files, args->efd);
-+		rcu_read_unlock();
-+
-+		priv->efd_ctx = eventfd_ctx_fileget(efd_file);
-+		if (!priv->efd_ctx) {
-+			pr_err(KBUILD_MODNAME "get eventfd context failed\n");
-+			/* Free the allocated memory for net device */
-+			dev->platform_data = NULL;
-+			free_netdev(net_dev);
-+			return -EINVAL;
-+		}
-+		/* Since there will be NO PHY update as link is already setup,
-+		 * wake user context once so that current PHY status can
-+		 * be fetched.
-+		 */
-+		phy_link_updates(net_dev);
-+		return 0;
-+	}
-+
-+	proxy_dev = dev_get_drvdata(dev);
-+	mac_dev =  proxy_dev->mac_dev;
-+	/* Allocate an dummy net device for proxy interface */
-+	net_dev = alloc_etherdev(sizeof(*priv));
-+	if (!net_dev) {
-+		pr_err(KBUILD_MODNAME "alloc_etherdev failed\n");
-+		return -ENOMEM;
-+	} else {
-+		SET_NETDEV_DEV(net_dev, dev);
-+		priv = netdev_priv(net_dev);
-+		priv->mac_dev = mac_dev;
-+		/* Get current task context from which IOCTL was called */
-+		userspace_task = current;
-+
-+		rcu_read_lock();
-+		efd_file = fcheck_files(userspace_task->files, args->efd);
-+		rcu_read_unlock();
-+
-+		priv->efd_ctx = eventfd_ctx_fileget(efd_file);
-+
-+		if (!priv->efd_ctx) {
-+			pr_err(KBUILD_MODNAME "get eventfd context failed\n");
-+			/* Free the allocated memory for net device */
-+			free_netdev(net_dev);
-+			return -EINVAL;
-+		}
-+		strncpy(net_dev->name, args->if_name, IF_NAME_MAX_LEN);
-+		dev->platform_data = net_dev;
-+	}
-+
-+	pr_debug("%s: mac_dev %p cell_index %d\n",
-+		__func__, mac_dev, mac_dev->cell_index);
-+	mac_dev->phy_dev = of_phy_connect(net_dev, mac_dev->phy_node,
-+	                         phy_link_updates, 0, mac_dev->phy_if);
-+	if (unlikely(mac_dev->phy_dev == NULL) || IS_ERR(mac_dev->phy_dev)) {
-+		pr_err("%s: --------Error in PHY Connect\n", __func__);
-+		/* Free the allocated memory for net device */
-+		free_netdev(net_dev);
-+		return -ENODEV;
-+	}
-+	net_dev->phydev = mac_dev->phy_dev;
-+	mac_dev->start(mac_dev);
-+	pr_debug("%s: --- PHY connected for %s\n", __func__, args->if_name);
-+
-+	return 0;
-+}
-+
-+/* IOCTL handler for disabling Link status for a given interface
-+ * Input parameters:
-+ * if_name:	This the network interface node name as defind in
-+ *		device tree file. Currently, it has format of
-+ *		"ethernet@x" type for each interface.
-+ */
-+static int ioctl_disable_if_link_status(char *if_name)
-+{
-+	struct net_device *net_dev = NULL;
-+	struct device *dev;
-+	struct mac_device *mac_dev;
-+	struct proxy_device *proxy_dev;
-+	struct dpa_proxy_priv_s *priv = NULL;
-+
-+	dev = get_dev_ptr(if_name);
-+	if (dev == NULL)
-+		return -ENODEV;
-+	/* Utilize dev->platform_data to save netdevice
-+	   pointer as it will not be registered */
-+	if (!dev->platform_data) {
-+		pr_debug("%s: IF %s already Disabled for Link status\n",
-+			__func__, if_name);
-+		return 0;
-+	}
-+
-+	net_dev = dev->platform_data;
-+	proxy_dev = dev_get_drvdata(dev);
-+	mac_dev =  proxy_dev->mac_dev;
-+	mac_dev->stop(mac_dev);
-+
-+	priv = netdev_priv(net_dev);
-+	eventfd_ctx_put(priv->efd_ctx);
-+
-+	/* This will also deregister the call back */
-+	phy_disconnect(mac_dev->phy_dev);
-+	phy_resume(mac_dev->phy_dev);
-+
-+	free_netdev(net_dev);
-+	dev->platform_data = NULL;
-+
-+	pr_debug("%s: Link status Disabled for %s\n", __func__, if_name);
-+	return 0;
-+}
-+
- static long usdpaa_ioctl(struct file *fp, unsigned int cmd, unsigned long arg)
- {
- 	struct ctx *ctx = fp->private_data;
-@@ -1722,6 +1957,47 @@ static long usdpaa_ioctl(struct file *fp
- 			return -EFAULT;
- 		return ioctl_free_raw_portal(fp, ctx, &input);
- 	}
-+	case USDPAA_IOCTL_ENABLE_LINK_STATUS_INTERRUPT:
-+	{
-+		struct usdpaa_ioctl_link_status input;
-+		int ret;
-+
-+		if (copy_from_user(&input, a, sizeof(input)))
-+			return -EFAULT;
-+		ret = ioctl_en_if_link_status(&input);
-+		if (ret)
-+			pr_err("Error(%d) enable link interrupt:IF: %s\n",
-+				ret, input.if_name);
-+		return ret;
-+	}
-+	case USDPAA_IOCTL_DISABLE_LINK_STATUS_INTERRUPT:
-+	{
-+		char *input;
-+		int ret;
-+
-+		if (copy_from_user(&input, a, sizeof(input)))
-+			return -EFAULT;
-+		ret = ioctl_disable_if_link_status(input);
-+		if (ret)
-+			pr_err("Error(%d) Disabling link interrupt:IF: %s\n",
-+				ret, input);
-+		return ret;
-+	}
-+	case USDPAA_IOCTL_GET_LINK_STATUS:
-+	{
-+		struct usdpaa_ioctl_link_status_args input;
-+
-+		if (copy_from_user(&input, a, sizeof(input)))
-+			return -EFAULT;
-+
-+		input.link_status = ioctl_usdpaa_get_link_status(input.if_name);
-+		if (input.link_status < 0)
-+			return input.link_status;
-+		if (copy_to_user(a, &input, sizeof(input)))
-+			return -EFAULT;
-+
-+		return 0;
-+	}
- 	}
- 	return -EINVAL;
- }
---- a/include/linux/fsl_usdpaa.h
-+++ b/include/linux/fsl_usdpaa.h
-@@ -365,6 +365,38 @@ int dpa_alloc_pop(struct dpa_alloc *allo
- int dpa_alloc_check(struct dpa_alloc *list, u32 id);
- #endif /* __KERNEL__ */
- 
-+
-+/************************************
-+ * Link Status support for user space
-+ * interface
-+ ************************************/
-+#define IF_NAME_MAX_LEN 16
-+#define NODE_NAME_LEN	32
-+
-+struct usdpaa_ioctl_link_status {
-+	/* network device node name */
-+	char		if_name[IF_NAME_MAX_LEN];
-+	/* Eventfd value */
-+	uint32_t	efd;
-+};
-+
-+#define USDPAA_IOCTL_ENABLE_LINK_STATUS_INTERRUPT \
-+	_IOW(USDPAA_IOCTL_MAGIC, 0x0E, struct usdpaa_ioctl_link_status)
-+
-+#define USDPAA_IOCTL_DISABLE_LINK_STATUS_INTERRUPT \
-+	_IOW(USDPAA_IOCTL_MAGIC, 0x0F, char *)
-+
-+struct usdpaa_ioctl_link_status_args {
-+	/* network device node name */
-+	char    if_name[IF_NAME_MAX_LEN];
-+	/* link status(UP/DOWN) */
-+	int     link_status;
-+};
-+
-+#define USDPAA_IOCTL_GET_LINK_STATUS \
-+	_IOWR(USDPAA_IOCTL_MAGIC, 0x10, struct usdpaa_ioctl_link_status_args)
-+
-+
- #ifdef __cplusplus
- }
- #endif