[dpdk-dev] [PATCH v5] ethdev: fix representor port ID search by name

[Thomas Monjalon]

07/10/2021 12:20, Andrew Rybchenko:
> On 10/6/21 12:56 AM, Thomas Monjalon wrote:
> > 13/09/2021 13:26, Andrew Rybchenko:
> >> From: Viacheslav Galaktionov <viacheslav.galaktionov at oktetlabs.ru>
> >>
> >> Getting a list of representors from a representor does not make sense.
> >> Instead, a parent device should be used.
> > 
> > I don't understand which issue it is fixing.
> > This function was not working before if not using the backer port?
> 
> The function, rte_eth_representor_id_get(), is used in
> eth_representor_cmp() which is required in ethdev class
> iterator to search ethdev port ID by name (representor case).
> Before the patch the function is called on the representor
> itself it tries to get representors info to match.
> 
> It was found by OvS+DPDK testing:
>  1. OvS hotplugs representor
>  2. OvS tries to find DPDK port ID for just hotplugged
>     representor and fails (if PMD does not provider
>     representors info on the representor itself)
> 
> > Is it fixing a specific PMD?
> 
> It is a generic fix for PMD which do *not* provide representors
> info on the representor itself.

This is the key information.
Please reword the commit log.