Webb__skb_tstamp_tx(skb, NULL, skb->sk, SCM_TSTAMP_SCHED); /* Disable soft irqs for various locks below. Also * stops preemption for RCU. rcu_read_lock_bh(); … Webb*Re: [PATCH v2,bpf-next] bpf: Don't redirect packets with invalid pkt_len 2024-07-14 18:22 ` Stanislav Fomichev @ 2024-07-14 20:39 ` Daniel Borkmann 2024-07-14 21:26 ` Stanislav …
Linux Kernel Documentation / networking / timestamping.txt
WebbFrom: Eric Dumazet sock_tx_timestamp() should not ignore initial *tx_flags value, as TCP stack can store SKBTX_SHARED_FRAG in it. Webb内核版本：Linux-4.20.8 网络子系统中用来存储数据的缓冲区叫做套接字缓存，简称 SKB ，可处理变长数据，尽量避免数据的复制。 每一个SKB都在设备中标识发送报文的目的或接受报文的来源地，主要用于在网络驱动程序和应用程序直接传递复制数据包。 当应用程序要发送一个数据包，数据通过系统调用提交到内核，系统分配一个SKB来存储数据，然后 … fairground hotel allentown pa
[PATCH net-next v4 2/6] ptp: Request cycles for TX timestamp
WebbFrom mboxrd@z Thu Jan 1 00:00:00 1970 From: Willem de Bruijn Subject: [PATCH net-next v4 4/6] net-timestamp: SCHED timestamp on entering packet scheduler Date: Mon, 4 Aug … Webbnet-timestamp: sock_tx_timestamp() fix sock_tx_timestamp() should not ignore initial *tx_flags value, as TCP stack can store SKBTX_SHARED_FRAG in it. WebbSince accessing skb_shinfo is likely to incur a cache-line miss at the time of receiving the ack, the txstamp_ack bit was added in tcp_skb_cb, which is set iff the … do hagfish have claws