[DPDK/doc Bug 1488] Suggestion: add documentation to fill in total_length etc. to UDP checksum offloading?

[DPDK/doc Bug 1488] Suggestion: add documentation to fill in total_length etc. to UDP checksum offloading?

[bugzilla]

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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: dev@dpdk.org
          Reporter: user202729@protonmail.com
  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:

> 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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