On 12/13/2022 10:04 AM, fengchengwen wrote: > Hi Ferruh, > > During the test, we need to delineate where go wrong when encountered > e.g. CRC error. In this scenario, loopback is useful. > > I think we can add a loopback set API which could set inner or outer loop, > and user can use telemetry to set the loopback in the above scenario. > > I'd like to hear your opinion about add a loopback set API. >
Hi Chengwen, Is the intention to test ethdev layer or driver? It is possible to use ring vdev to create a loopback and to test ethdev layer. For driver, it can be possible to create physical loopback connection, or even can implement loopback Rx/Tx burst functions in driver. Using another host to send/receive packets to DUT (device under test) is another approach. What kind of loopback implementation do you have in your mind?
