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Suggestion: add documentation to fill in total_length etc. to UDP checksum offloading?

DPDK/doc Bug 1488 [email protected] 1 participant 1 message Jul 15, 2024

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https://bugs.dpdk.org/show_bug.cgi?id=1488

            Bug ID: 1488
           Summary: Suggestion: add documentation to fill in total_length
                    etc. to UDP checksum offloading?
           Product: DPDK
           Version: 24.07
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: doc
          Assignee: [email protected]
          Reporter: [email protected]

Target Milestone: ---

Currently, the documentation of RTE_MBUF_F_TX_UDP_CKSUM in
https://doc.dpdk.org/api/rte__mbuf__core_8h.html#ada511d6f30184b374ba2248c26af8ede
is very sparse:

Quoted 1 line

UDP cksum of TX pkt. computed by NIC.

I think it should mention which fields should be set.
Some bug reports e.g. https://github.com/amzn/amzn-drivers/issues/176
https://github.com/amzn/amzn-drivers/issues/79 states that you need to set m3_len, total_length, dgram_cksum to the pseudo-header checksum etc. (not sure about this).

What is the actual requirement of that flag, and how should the documentation be edited?

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