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Core Offloads
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===== Offloads ===== The device must advertise the following features and they must be configurable: <pre>For VAL in off on off: ethtool -K eth0 rx $VAL # rx checksum offload ethtool -K eth0 tx $VAL # tx checksum offload ethtool -K eth0 tso $VAL ethtool -K eth0 tx-udp-segmentation $VAL</pre> The device should advertise these offloads as well: <pre>For VAL in off on off: ethtool -K eth0 rxhash $VAL ethtool -K eth0 rx-gro-hw $VAL</pre> The device may advertise flow steering (including ARFS) as well: <pre>For VAL in off on off: ethtool -K eth0 ntuple $VAL</pre> In all cases the configuration must be tested to be successfully reflected in ethtool -k. <span id="jumbogram-segmentation-offload-1"></span> ====== Jumbogram Segmentation Offload ====== In Linux, jumbogram segmentation offload is enabled by explicitly configuring a maximum size that exceeds 64KB: ip link set dev eth0 gso_max_size 262144 <span id="link-layer"></span>
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