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===== Toeplitz Receive Hash ===== Linux v6.3 '''tools/testing/selftests/net/toeplitz.sh '''verifies the Toeplitz hash implementation by receiving whole packets up to userspace (using PF_PACKET sockets), along with the hash as returned by the device. The test manually recomputes the hash in software and compares the two. Microsoft RSS documentation~[ref_id:ms_rss] lists a set of example inputs with expected output hash values. The software implementation in Linux kernel tools/testing/selftests/toeplitz.c and the example code in this spec have been verified to pass that test. A vendor may test these exact packets, or test arbitrary packets against the toeplitz.c software implementation. <span id="receive-side-scaling-2"></span>
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