Re: [dpdk-dev] Hardware Checksum Checks Offload Feature

Hello,

In regards to the outer layers, having grepped through the code for
"[\w_]+_GOOD|[\w_]+_BAD", I wasn't able to find the flags that I expected.
I expected something like PKT_RX_OUTER_IP_CKSUM_BAD and
PKT_RX_OUTER_IP_CKSUM_GOOD to show up since that seems to be the format for
flags to be printed, but there wasn't anything in the grep output related
to that. Am I missing something? I can do outer UDP fairly easily, but it
doesn't look like there is support for outer TCP and outer SCTP in TestPmd.
I will plan to add tests

quoted

I decided to separate out the test cases instead of doing it like the
other ones in that area of the test suite because I noticed that a NIC
doesn't necessarily need to support offloading all checksum types, and
if I wrote the tests in the same way as the other ones in the test, it
would fail everything if the first protocol wasn't supported,

No, if it is not supported, the result must have a special value

"UNKNOWN".

To clarify my meaning there, I mean that the verify statements in the test
case will abort the test on the first failed statement, so I am splitting
the tests up so that I don't need to collect all of the errors and then
spit them all out at once. Also, as far as I can tell, unknown only occurs
when it is not possible to decode a layer. The NIC I am testing with
doesn't support offloading outer udp, and TestPmd gives me an error message
and then leaves the option set to software mode. When I send a packet
without any tunneling, then it gives me something like
"PKT_RX_OUTER_L4_CKSUM_UNKNOWN". Is this assessment incorrect?

 I think you should describe all the protocols you want to test.

Could you please elaborate on this?

Thanks for your feedback