Skbtx_sched_tstamp
WebbA driver must never touch sk_buff::tstamp! It is used to store software generated time stamps by the network subsystem. Driver should call skb_tx_timestamp() as close to … 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 …
Skbtx_sched_tstamp
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WebbSOF_TIMESTAMPING_TX_SCHED: Request tx timestamps prior to entering the packet scheduler. Kernel transmit latency is, if long, often dominated by queuing delay. The difference between this timestamp and one taken at SOF_TIMESTAMPING_TX_SOFTWARE will expose this latency independent of protocol processing. Webb/* * NET An implementation of the SOCKET network access protocol. * * Version: @(#)socket.c 1.1.93 18/02/95 * * Authors: Orest Zborowski, * Ross Biro * Fred N. van ...
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 … 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 …
WebbFrom: Willem de Bruijn To: [email protected] Cc: [email protected], [email protected], [email protected], Willem … Webb8 maj 2010 · SOF_TIMESTAMPING_TX_SOFTWARE: Request tx timestamps when data leaves the kernel. These timestamps are generated in the device driver as close as …
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(); …
WebbSign in. android / kernel / common / 8395d932d24a9b4c01ab33ed0b4b2de06328afc2 / . / net / socket.c. blob: 6bae8ce7059ee97a8e8cee3fa5726bf6ae0b6e86 // SPDX-License ... plot hold on matlabWebbSKBTX_SW_TSTAMP = 1 << 1, /* device driver is going to provide hardware time stamp */ SKBTX_IN_PROGRESS = 1 << 2, /* generate hardware time stamp based on cycles if … plot history pythonWebbNetdev Archive on lore.kernel.org help / color / mirror / Atom feed * Support for IEEE1588 timestamping in the BCM54210PE PHY using the kernel mii_timestamper interface @ 2024-04-20 14:03 Lasse Johnsen 2024-04-20 19:19 ` Andrew Lunn 2024-04-21 14:48 ` Support for IEEE1588 timestamping in the BCM54210PE PHY using the kernel … princess encounterWebbFrom: Eric Dumazet sock_tx_timestamp() should not ignore initial *tx_flags value, as TCP stack can store SKBTX_SHARED_FRAG in it. plot hold onWebbSince 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 … princess enchantment greeceWebbMessage ID: [email protected] (mailing list archive)State: Accepted: Commit: 97dc7cd92ac67f6e05df418df1772ba4a7fbf693: Delegated to ... princess end garage tiptonWebbskb_tx_timestamp() provides a software time stamp if requested and hardware timestamping is not possible (SKBTX_IN_PROGRESS not set). As soon as the driver has … plothole def