Linux Gso Support

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GSO: Generic Segmentation Offload [LWN.net]

    https://lwn.net/Articles/188489/
    Jun 20, 2006 · Hi: This series adds Generic Segmentation Offload (GSO) support to the Linux networking stack. Many people have observed that a lot of the savings in TSO come from traversing the networking stack once rather than many times for each super-packet. These savings can be obtained without hardware support.

Enabling and disabling TCP segmentation offload

    https://www.ibm.com/support/knowledgecenter/en/linuxonibm/com.ibm.linux.z.lgdd/lgdd_t_qeth_wrk_packing.html
    To support TCP segmentation offload (TSO), a network device must support outbound (TX) checksumming and scatter gather. For this reason, you must turn on scatter gather and outbound checksumming prior to configuring TSO. All three options can be turned on or off with a single ethtool command of the form:

What is the difference between GSO and TSO in RHEL? - Red ...

    https://access.redhat.com/solutions/781503
    Register. If you are a new customer, register now for access to product evaluations and purchasing capabilities. Need access to an account? If your company has an existing Red Hat account, your organization administrator can grant you access.

linux networking - How GRO (generic receive offload) works ...

    https://serverfault.com/questions/230804/how-gro-generic-receive-offload-works-on-more-advanced-nics
    I've found this article amazingly useful: JLS2009: Generic receive offload.It gives a great overview of how GRO works. Some adapters might do it, but the associated drivers have to be aware of it as well.

& udp gso - VGER.KERNEL.ORG

    http://vger.kernel.org/netconf2017_files/rx_hardening_and_udp_gso.pdf
    GSO: write large packet of N segments (including L7 headers, evenly spaced) proof-of-concept IP_PMTUDISC_INTERFACE builds > mtu do not fragment locally do not set DF bit set gso_{type, size} ... BQL support tso_segment on dequeue to send out fewer MSS

sctp: Add GSO support · torvalds/linux@90017ac · GitHub

    https://github.com/torvalds/linux/commit/90017accff61ae89283ad9a51f9ac46ca01633fb
    Contribute to torvalds/linux development by creating an account on GitHub. SCTP has this pecualiarity that its packets cannot be just segmented to (P)MTU. Its chunks must be contained in IP segments, padding respected. ... Add GSO support

Large send offload - Wikipedia

    https://en.wikipedia.org/wiki/Large_segment_offload
    The NIC then splits this buffer into separate packets. The technique is also called TCP segmentation offload (TSO) when applied to TCP, or generic segmentation offload (GSO). A similar concept to large segment offload for ingress traffic is large receive offload (LRO). LSO and LRO are independent and use of one does not require the use of the ...



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