netdev_tx_sent_queue 在Kubernetes(K8S)中,netdev_tx_sent_queue是一个关键的概念,用于管理网络设备发送队列。如果你是一名刚入行的小白开发者,不知道如何实现netdev_tx_sent_queue,不用担心,我将为你详细介绍整个流程并提供代码示例。 首先,让我们来看一下实现netdev_tx_sent_queue的整
structnet_device*alloc_netdev_mq(intsizeof_priv,constchar*name,void(*setup)(structnet_device*),unsignedintqueue_count){structnet_device*dev;structnetdev_queue*tx;intalloc_size;alloc_size=sizeof(structnet_device);dev=kzalloc(alloc_size,GFP_KERNEL);tx=kcalloc(queue_count,sizeof(structnetdev_q...
4,br_dev_queue_push_xmit linux-4.4.61/net/bridge/br_forward.c中: 可见,bridge选择好了net device之后,就使用br_dev_queue_push_xmit (当然,更具体点就是通过dev_queue_xmit)发送数据了。 5,forward 为了便于分析网络过程,作者给vm配置了tap网卡,在虚拟机中发送数据包,然后抓到了这份backtrace。 backtrace...
From:http://marc.info/?l=linux-netdev&m=135474171009246&w=2 The watchdog will fire if all these conditions are met: 1. The interface is up 2. A TX queue is stopped (normally because it is full) 3. No packets have been added to the queue in the last 5 seconds 4. The driver ha...
Netdev Watchdog timeout message indicates that the hardware is not serving the transmit queue. The kernel monitors the time when the packet sentout by keeping a timer, it the timer expires, the kernel outputs thismessage. This is a hardware and driver specific error, it's not possible to ...
NETDEV WATCHDOG: (e1000e): transmit queue X timed outis logged, with a large kernel backtrace A system using thee1000eNIC driver reports aNETDEV WATCHDOGtimeout andReset adapter unexpectedly. RHEL 7 example: Raw kernel: ---[ cut here ]--- kernel: WARNING: CPU: 0 PID: 27563 at net/...
[ 224.068178] WARNING: CPU: 0 PID: 0 at net/sched/sch_generic.c:466 dev_watchdog+0x248/0x24c [ 224.076364] NETDEV WATCHDOG: eth0 (stm32-dwmac): transmit queue 0 timed out [ 224.083267] Modules linked in: brcmfmac galcore(O) cfg80211 brcmutil ...
vhost-net驱动程序在主机上创建一个/ dev / vhost-net字符设备。 此字符设备作为配置vhost-net实例的接口。 当使用-netdev tap启动QEMU时,vhost = on将打开/ dev / vhost-net并使用几个ioctl调用初始化vhost-net实例。 这些必须将QEMU进程与vhost-net实例关联,准备virtio功能协商,并将guest虚拟机物理内存映射传递...
struct netdev_rx_queue *_rx; unsigned int num_rx_queues; unsigned int real_num_rx_queues; rx_handler_func_t __rcu *rx_handler; void __rcu *rx_handler_data; struct netdev_queue __rcu *ingress_queue; (2)、发送队列 1 2 3 4 5 6 7 8 struct netdev_queue *_tx ___cac...
pkt->NIC->TCingress->handle_ing()|-verdict=tc_classify()// exec BPF code||-bpf_redirect()// return verdict||-switch(verdict){caseTC_ACK_REDIRECT:skb_do_redirect()// to the target net device|-ifingress:|dev_forward_skb()|-else:dev_queue_xmit() ...