https://bugs.dpdk.org/show_bug.cgi?id=510
Bug ID: 510
Summary: Virtio driver breaks all apps which use ETH_MQ_RX_RSS
Product: DPDK
Version: 19.08
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: Normal
Component: vhost/virtio
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
After commit 13b3137f3b7c8f866947a9b34e06a8a, all applications which set
rxmode.mq_mode to ETH_MQ_RX_RSS, _even if only 1 rx queue is set_ fail to open
the device.
This includes all the l3fwd examples, distributor, ipsec-secgw, etc.. Not to
mention my app.
Since there is no way to determine what flags the PMD will accept for
rxmode.mq_mode or txmode.mq_mode, PMDs should accept "invalid" values and
ignore them if they are not supported, logging that they are doing so.
Especially in this case where it is obvious that if there is only one rx queue,
then the RX_RSS flag should be ignored.
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