[PATCH iwl-next v5 1/9] net: ethtool: mm: extract stmmac verification logic into common library

[Abdul Rahim, Faizal]

On 21/2/2025 6:43 pm, Vladimir Oltean wrote:
> On Fri, Feb 21, 2025 at 06:24:09PM +0800, Furong Xu wrote:
>> Your fix is better when link is up/down, so I vote verify_enabled.
> 
> Hmmm... I thought this was a bug in stmmac that was carried over to
> ethtool_mmsv, but it looks like it isn't.
> 
> In fact, looking at the original refactoring patch I had attached in
> this email:
> https://lore.kernel.org/netdev/20241217002254.lyakuia32jbnva46@skbuf/
> 
> these 2 lines in ethtool_mmsv_link_state_handle() didn't exist at all.
> 
> 	} else {
>>>>> 		mmsv->status = ETHTOOL_MM_VERIFY_STATUS_INITIAL;
>>>>> 		mmsv->verify_retries = ETHTOOL_MM_MAX_VERIFY_RETRIES;
> 
> 		/* No link or pMAC not enabled */
> 		ethtool_mmsv_configure_pmac(mmsv, false);
> 		ethtool_mmsv_configure_tx(mmsv, false);
> 	}
> 
> Faizal, could you remind me why they were added? I don't see this
> explained in change logs.
> 

Hi Vladimir,

Yeah, it wasn’t there originally. I added that change because it failed the 
link down/link up test.
After a successful verification, if the link partner goes down, the status 
still shows ETHTOOL_MM_VERIFY_STATUS_SUCCEEDED, which isn’t correct—so 
that’s why I added it.

Sorry for not mentioning it earlier. I assumed you’d check the delta 
between the original patch and the upstream one, my bad, should have 
mentioned this logic change.

Should I update it to the latest suggestion?