问题描述
我想在关机之前配置我的网卡，以启用局域网唤醒（WoL）功能。我在{em> drivers / net / phy / phy_device.c 的功能register_reboot_notifier(&wol_reboot_notifier)中添加了phy_probe()，并在功能phy_remove()中未注册它。但是当我输入init 0时未配置网卡。日志显示它在运行之前已取消注册。
我注释掉unregister_reboot_notifier()，然后根据需要配置了网卡。但是，如果没有取消注册调用会导致内核崩溃。有什么解决方案可以配置我的网卡？
下面是我在驱动程序中所做的更改。
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -35,6 +35,8 @@
#include <linux/uaccess.h>
#include <linux/of.h>
+#include <linux/reboot.h>
+
#include <asm/irq.h>
MODULE_DESCRIPTION("PHY library");
@@ -1252,6 +1254,8 @@ static int gen10g_suspend(struct phy_device *phydev)
return 0;
}
+static int rtl8211f_reset_wol(struct phy_device *phydev);
+
int genphy_resume(struct phy_device *phydev)
{
int value;
@@ -1272,6 +1276,8 @@ int genphy_resume(struct phy_device *phydev)
mutex_unlock(&phydev->lock);
+ rtl8211f_reset_wol(phydev);
+
return 0;
}
EXPORT_SYMBOL(genphy_resume);
@@ -1334,6 +1340,96 @@ static void of_set_phy_supported(struct phy_device *phydev)
__set_phy_supported(phydev,max_speed);
}
+static int rtl8211f_set_wol(struct phy_device *phydev) {
+ struct net_device * ndev = phydev->attached_dev;
+ int value;
+
+ printk("matinal %s\n",__func__);
+
+ mutex_lock(&phydev->lock);
+
+ //RTL8211F
+ //set INTB pin
+ phy_write(phydev,31,0x0d40);
+ value = phy_read(phydev,22);
+ phy_write(phydev,22,value | BIT(5));
+
+ //set MAC address
+ phy_write(phydev,0x0d8c);
+ phy_write(phydev,16,((u16)ndev->dev_addr[1] << 8) + ndev->dev_addr[0]);
+ phy_write(phydev,17,((u16)ndev->dev_addr[3] << 8) + ndev->dev_addr[2]);
+ phy_write(phydev,18,((u16)ndev->dev_addr[5] << 8) + ndev->dev_addr[4]);
+
+ //set max packet length
+ phy_write(phydev,0x0d8a);
+ phy_write(phydev,0x9fff);
+
+ //enable wol event
+ phy_write(phydev,0x1000);
+
+ //disable rgmii pad
+ phy_write(phydev,0x0d8a);
+ value = phy_read(phydev,19);
+ phy_write(phydev,19,value | BIT(15));
+
+ //set pulse low for wol
+ phy_write(phydev,value | BIT(0));
+
+ phy_write(phydev,0xa42);
+
+ mutex_unlock(&phydev->lock);
+
+ return 0;
+}
+
+static int rtl8211f_reset_wol(struct phy_device *phydev) {
+ int value;
+
+ printk("matinal %s\n",__func__);
+
+ mutex_lock(&phydev->lock);
+
+ //RTL8211F
+ //disable wol event
+ phy_write(phydev,0x0);
+
+ //reset wol
+ phy_write(phydev,17);
+ phy_write(phydev,value & (~BIT(15)));
+
+ //enable rgmii pad
+ phy_write(phydev,value & (~BIT(15)));
+
+ //set INTB pin
+ phy_write(phydev,value & (~BIT(5)));
+
+ mutex_unlock(&phydev->lock);
+
+ msleep(100);
+
+ return 0;
+}
+
+struct notifier_block wol_reboot_notifier;
+struct phy_device *my_phydev;
+
+static int phy_reboot_notify(struct notifier_block *notifier,ulong pm_event,void *unused)
+{
+ printk("matinal %s: pm event %ld\n",__func__,pm_event);
+ rtl8211f_set_wol(my_phydev);
+
+ return NOTIFY_OK;
+}
+
/**
* phy_probe - probe and init a PHY device
* @dev: device to probe and init
@@ -1349,6 +1445,10 @@ static int phy_probe(struct device *dev)
struct phy_driver *phydrv = to_phy_driver(drv);
int err = 0;
+ my_phydev = phydev;
+ wol_reboot_notifier.notifier_call = phy_reboot_notify;
+ register_reboot_notifier(&wol_reboot_notifier);
+
phydev->drv = phydrv;
/* disable the interrupt if the PHY doesn't support it
@@ -1386,6 +1486,8 @@ static int phy_remove(struct device *dev)
{
struct phy_device *phydev = to_phy_device(dev);
+ unregister_reboot_notifier(&wol_reboot_notifier);
+
cancel_delayed_work_sync(&phydev->state_queue);
mutex_lock(&phydev->lock);
并且日志显示reboot_notifier没有运行。
Stopping Session c1 of user lightdm.
Session terminated,killing shell...
Stopping Session c2 of user seavo.
[ OK ] Removed slice system-modprobe.slice.
[ OK ] Stopped target Bluetooth.
[ OK ] Stopped target Graphical Interface.
[ OK ] Stopped target multi-user System.
[ OK ] Stopped target Login Prompts.
[ OK ] Stopped target Sound Card.
[ OK ] Stopped target Timers.
[ OK ] Stopped Daily apt upgrade and clean activities.
[ OK ] Stopped Daily apt download activities.
[ OK ] Stopped Periodic ext4 Onli…ata Check for All Filesystems.
[ OK ] Stopped discard unused blocks once a week.
[ OK ] Stopped Refresh fwupd Metadata regularly.
[ OK ] Stopped Daily rotation of log files.
[ OK ] Stopped Daily man-db regeneration.
[ OK ] Stopped Message of the Day.
[ OK ] Stopped Daily Cleanup of Temporary Directories.
[ OK ] Closed Load/Save RF Kill Switch Status /dev/rfkill Watch.
Stopping Modem Manager...
Stopping Accounts Service...
Stopping Save/Restore Sound Card State...
Stopping Run anacron jobs...
Stopping LSB: automatic crash report generation...
Stopping Bluetooth service...
Stopping Manage,Install and Generate Color Profiles...
Stopping Regular background program processing daemon...
Stopping Make remote CUPS printers available locally...
Stopping LSB: GNOME display Manager...
Stopping Getty on tty1...
Stopping Tool to automatic…mit kernel crash signatures...
Stopping Light display Manager...
Stopping dispatcher daemon for systemd-networkd...
[ OK ] Stopped OpenVPN service.
Stopping System Logging Service...
Stopping RealtimeKit Scheduling Policy Service...
Stopping Serial Getty on ttyFIQ0...
[ OK ] Stopped Wait until snapd is fully seeded.
Stopping OpenBSD Secure Shell server...
Stopping Load/Save Random Seed...
Stopping disk Manager...
Stopping Unattended Upgrades Shutdown...
Stopping Daemon for power management...
Stopping crash report submission daemon...
[ OK ] Stopped Accounts Service.
[ OK ] Stopped Run anacron jobs.
[ OK ] Stopped Bluetooth service.
[ OK ] Stopped Regular background program processing daemon.
[ OK ] Stopped dispatcher daemon for systemd-networkd.
[ OK ] Stopped System Logging Service.
[ OK ] Stopped disk Manager.
[ OK ] Stopped Make remote CUPS printers available locally.
[ OK ] Stopped Modem Manager.
[ OK ] Stopped OpenBSD Secure Shell server.
[ OK ] Stopped RealtimeKit Scheduling Policy Service.
[ OK ] Stopped Daemon for power management.
[ OK ] Stopped Manage,Install and Generate Color Profiles.
[ OK ] Stopped crash report submission daemon.
[ OK ] Stopped Unattended Upgrades Shutdown.
[ OK ] Stopped Getty on tty1.
[ OK ] Stopped Serial Getty on ttyFIQ0.
[ OK ] Stopped Save/Restore Sound Card State.
[ OK ] Stopped LSB: GNOME display Manager.
[ OK ] Stopped Load/Save Random Seed.
[ OK ] Stopped Tool to automatica…ubmit kernel crash signatures.
[ OK ] Removed slice system-getty.slice.
[ OK ] Removed slice system-serial\x2dgetty.slice.
[ OK ] Stopped Trigger anacron every hour.
[ OK ] Stopped target Network is Online.
[ OK ] Stopped target Host and Network Name Lookups.
[ OK ] Stopped target System Time Synchronized.
[ OK ] Stopped target System Time Set.
[ OK ] Stopped Network Manager Wait Online.
Stopping Avahi mDNS/DNS-SD Stack...
Stopping CUPS Scheduler...
Stopping Authorization Manager...
Stopping Switcheroo Control Proxy service...
[ OK ] Stopped Avahi mDNS/DNS-SD Stack.
[ OK ] Stopped CUPS Scheduler.
[ OK ] Stopped Authorization Manager.
[ OK ] Stopped Switcheroo Control Proxy service.
[ OK ] Stopped Session c1 of user lightdm.
Stopping User Manager for UID 125...
[ OK ] Unmounted /run/user/125/gvfs.
[ OK ] Stopped LSB: automatic crash report generation.
[ 60.818877] rockchip-pm-domain ff310000.power-management:power-controller: Looking up pd_vo-supply from device tree
[ 60.829328] rockchip-pm-domain ff310000.power-management:power-controller: Looking up pd_vo-supply property in node /power-management@ff310000/power-controller Failed
[ 60.865846] rockchip-vop ff900000.vop: [drm:vop_crtc_enable] Update mode to 1360x768p60,type: 11
[ OK ] Stopped Light display Manager.
[ OK ] Stopped User Manager for UID 125.
Stopping User Runtime Directory /run/user/125...
[ OK ] Unmounted /run/user/125.
[ OK ] Stopped User Runtime Directory /run/user/125.
[ OK ] Removed slice User Slice of UID 125.
[ OK ] Stopped Session c2 of user seavo.
[ 62.309685] tty_port_close_start: tty->count = 1 port count = 3.
Stopping Login Service...
Stopping User Manager for UID 999...
[ OK ] Unmounted /run/user/999/gvfs.
[ OK ] Stopped User Manager for UID 999.
Stopping User Runtime Directory /run/user/999...
[ OK ] Stopped Login Service.
[ OK ] Unmounted /run/user/999.
[ OK ] Reached target Unmount All Filesystems.
[ OK ] Stopped User Runtime Directory /run/user/999.
[ OK ] Removed slice User Slice of UID 999.
Stopping Permit User Sessions...
[ OK ] Stopped Permit User Sessions.
[ OK ] Stopped target Network.
[ OK ] Stopped target User and Group Name Lookups.
[ OK ] Stopped target Remote File Systems.
Stopping Network Manager...
Stopping ifup for eth0...
Stopping Raise network interfaces...
Stopping Network Name Resolution...
Stopping WPA supplicant...
[ OK ] Stopped Network Name Resolution.
[ 62.572715] RTW: rtw_ndev_notifier_call(wlx7ca7b02279ca) state:4
[ 62.581156] RTW: rtw_ndev_notifier_call(wlx7ca7b02279ca) state:4
[ 62.590420] RTW: rtw_ndev_notifier_call(wlx7ea7b02279ca) state:4
[ 62.605148] RTW: rtw_ndev_notifier_call(wlx7ea7b02279ca) state:4
[ OK ] Stopped WPA supplicant.
[ OK ] Stopped Network Manager.
Stopping D-Bus System Message Bus...
[ OK ] Stopped D-Bus System Message Bus.
[ OK ] Stopped target Basic System.
[ OK ] Stopped target Paths.
[ OK ] Stopped CUPS Scheduler.
[ OK ] Stopped target Slices.
[ OK ] Removed slice User and Session Slice.
[ OK ] Stopped target Sockets.
[ OK ] Closed Avahi mDNS/DNS-SD Stack Activation Socket.
[ OK ] Closed CUPS Scheduler.
[ OK ] Closed D-Bus System Message Bus Socket.
[ OK ] Closed Socket activation for snappy daemon.
[ OK ] Stopped target System Initialization.
[ OK ] Stopped target Local Encrypted Volumes.
[ OK ] Stopped dispatch Password …ts to Console Directory Watch.
[ OK ] Stopped Forward Password R…uests to Wall Directory Watch.
[ OK ] Stopped target Swap.
[ OK ] Closed Syslog Socket.
Stopping Load/Save Screen …ness of backlight:backlight...
Stopping Load/Save Screen …ess of backlight:backlight2...
Stopping Load/Save Screen …klight:ps8622_aux-backlight...
Stopping Network Time Synchronization...
Stopping Update UTMP about System Boot/Shutdown...
[ OK ] Stopped Network Time Synchronization.
[ OK ] Stopped Load/Save Screen B…tness of backlight:backlight2.
[ OK ] Stopped Load/Save Screen B…htness of backlight:backlight.
[ OK ] Stopped Load/Save Screen B…acklight:ps8622_aux-backlight.
[ OK ] Removed slice system-systemd\x2dbacklight.slice.
[ OK ] Stopped Update UTMP about System Boot/Shutdown.
[ OK ] Stopped Create Volatile Files and Directories.
[ 63.719178] matinal phy_remove: unregister_reboot_notifier
[ OK ] Stopped ifup for eth0.
[ OK ] Stopped Raise network interfaces.
[ OK ] Stopped target Local File Systems.
[ OK ] Stopped target Local File Systems (Pre).
[ OK ] Stopped Apply Kernel Variables.
[ OK ] Stopped Create Static Device Nodes in /dev.
[ OK ] Stopped Create System Users.
[ OK ] Stopped Remount Root and Kernel File Systems.
[ OK ] Reached target Shutdown.
[ OK ] Reached target Final Step.
[ OK ] Finished Power-Off.
[ OK ] Reached target Power-Off.
解决方法
暂无找到可以解决该程序问题的有效方法，小编努力寻找整理中！
如果你已经找到好的解决方法，欢迎将解决方案带上本链接一起发送给小编。
小编邮箱:dio#foxmail.com (将#修改为@）