On 05/24/2017 09:09 AM, Andrew Lunn wrote: > It could be, the copper side is up, but the SGMII side is down, at the > point at803x_aneg_done() is called. So it is correctly returning > 0. Sometime later the SGMII side goes up, but there is not a second > interrupt. Hence the phy core does not know that the full, 2 stage MAC > to PHY to peer PHY link is now up.
Ok, I'm going to debug this some more. It turns out that the MAC side of the SGMII link can send an interrupt when it thinks that auto-negotiation is done. I might be able to use this. What function should my MAC driver call when it wants the phy core to call at803x_aneg_done again to see if autonegotiation is done? Also, is there a way for the MAC driver to know that at803x_aneg_done() previously returned 0, and that it needs to tell the phy core to check again? -- Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc. Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.
