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Skbtx_sched_tstamp

Webb18 feb. 2024 · 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 … Webb15 dec. 2024 · +#define skb_frag_foreach_page(f, f_off, f_len, p, p_off, p_len, copied) \

Linux-4.20.8内核桥收包源码解析（一）----------sk_buff（详细）

Webbnext prev parent reply other threads:[~2014-08-06 9:49 UTC newest] Thread overview: 27+ messages / expand[flat nested] mbox.gz Atom feed top 2014-08-05 2:11 [PATCH net … 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 … marina montenegro https://e-shikibu.com

Timestamping — The Linux Kernel documentation

Webbskb_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 … 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. WebbNetdev Archive on lore.kernel.org help / color / mirror / Atom feed From: Willem de Bruijn To: [email protected] Cc: [email protected], … dallas to bolivar peninsula

Support for IEEE1588 timestamping in the BCM54210PE PHY …

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Skbtx_sched_tstamp

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Webb报文到此阶段，已经完成了MAC头封装，在调用驱动发送报文前还有一些工作要做：1）流量控制；2）报文GSO分段；3）checksum计算；1...,CodeAntenna技术文章技术问题代码片段及聚合

Skbtx_sched_tstamp

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WebbSign in. android / kernel / common / 8395d932d24a9b4c01ab33ed0b4b2de06328afc2 / . / net / socket.c. blob: 6bae8ce7059ee97a8e8cee3fa5726bf6ae0b6e86 // SPDX-License ... WebbSKBTX_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 …

WebbFrom: Eric Dumazet sock_tx_timestamp() should not ignore initial *tx_flags value, as TCP stack can store SKBTX_SHARED_FRAG in it. WebbNetdev Archive on lore.kernel.org help / color / mirror / Atom feed * [PATCH 00/12 v2 RFC] Generic zcopy_* functions @ 2024-12-22 0:09 Jonathan Lemon 2024-12-22 0:09 ` …

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 ... http://gpl.boxmatrix.info/wasp-540e-714/linux-4.4.60/net/socket.c

WebbLKML Archive on lore.kernel.org help / color / mirror / Atom feed * [PATCH v3,bpf-next] bpf: Don't redirect packets with invalid pkt_len @ 2024-07-15 3:22 Zhengchao Shao 2024-07-15 4:30 ` Jakub Kicinski 0 siblings, 1 reply; 3+ messages in thread From: Zhengchao Shao @ 2024-07-15 3:22 UTC (permalink / raw) To: bpf, netdev, linux-kernel, davem, edumazet, …

WebbMessage ID: [email protected] (mailing list archive)State: Accepted: Commit: 97dc7cd92ac67f6e05df418df1772ba4a7fbf693: Delegated to ... dallas to boston driveWebbThe free running cycle counter of physical clocks called cycles shall be used for hardware timestamps to enable synchronisation. Introduce new flag … dallas tocaWebb__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(); … marina morbiducci bachecaWebb*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 … marina morelloWebbMessage ID: [email protected] (mailing list archive)State: Superseded: Delegated to: Netdev Maintainers: Headers: show dallas to buffalo nyWebbnet-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. dallas to breckenridge coWebb23 nov. 2024 · 上面的 if 语句检查 skbtx_hw_tstamp 标志，该标志表示用户请求了硬件时间戳。 接下来检 查是否设置了 ptp_tx_skb 。 一次只能给一个数据包加时间戳，因此给正 … marina moretti instagram