netdev - RE: [PATCH net-next 5/6] net: txgbe: Implement phylink pcs

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Date:   Tue, 11 Apr 2023 14:32:33 +0800
From:   Jiawen Wu <jiawenwu@...stnetic.com>
To:     "'Russell King \(Oracle\)'" <linux@...linux.org.uk>
Cc:     <netdev@...r.kernel.org>, <mengyuanlou@...-swift.com>
Subject: RE: [PATCH net-next 5/6] net: txgbe: Implement phylink pcs

> It is normal for the first read of the BMSR to report that the link is
> down after it has come up. This is so that software can see if the
link
> has failed since it last read the BMSR. Phylink knows this, and will
> re-request the link state via the pcs_get_state() callback
> appropriately.
> 
> Is it reporting that the link is down after the second read of the
> link status after the interrupt?
> 
> --
> RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
> FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!
> 

I find out where the problem is.
I should to enable the AN interrupt, and call phylink_mac_change() when
interrupt happend.
Thanks for the tips!!