i40e: device configure ignores RSS key in rx_adv_conf

https://bugs.dpdk.org/show_bug.cgi?id=1113

Bug ID: 1113
Summary: i40e: device configure ignores RSS key in rx_adv_conf
Product: DPDK
Version: unspecified
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: Normal
Component: ethdev
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---

Running the opensource ethdev test suite [1] on a i40e rig suggests that the PMD
might have a bug in its device configure method. In particular, RSS key size and
data passed by the caller as part of "rx_adv_conf" seem to be completely ignored.

If the caller makes a mistake in the key size, they won't be informed about that.
This way, the caller may be tricked into thinking that "rx_adv_conf" is accepted.
However, if they try to predict a hash using this key, the result won't be valid.

A log example can be found at [2].

[1] http://mails.dpdk.org/archives/dev/2022-October/251663.html
[2] https://ts-factory.io/bublik/v2/log/70553?focusId=70999&mode=treeAndlog

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