Re: [PATCH v3 01/11] net: phy: Add rockchip phy driver support

From: David.Wu
Date: Wed Aug 09 2017 - 03:01:39 EST


Hi Andrew,

在 2017/8/2 21:21, Andrew Lunn 写道:
+static struct phy_driver rockchip_phy_driver[] = {
+{
+ .phy_id = 0x1234d400,
+ .phy_id_mask = 0xfffffff0,
+ .name = "Rockchip internal EPHY",
+ .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause
+ | SUPPORTED_Asym_Pause),

Please take a look at Documentation/networking/phy.txt and
Fixes: 529ed1275263 ("net: phy: phy drivers should not set SUPPORTED_[Asym_]Pause")

Pause frames / flow control

The PHY does not participate directly in flow control/pause frames except by
making sure that the SUPPORTED_Pause and SUPPORTED_AsymPause bits are set in
MII_ADVERTISE to indicate towards the link partner that the Ethernet MAC
controller supports such a thing. Since flow control/pause frames generation
involves the Ethernet MAC driver, it is recommended that this driver takes care
of properly indicating advertisement and support for such features by setting
the SUPPORTED_Pause and SUPPORTED_AsymPause bits accordingly. This can be done
either before or after phy_connect() and/or as a result of implementing the
ethtool::set_pauseparam feature.


Thanks for the reminder, I'll remove it.

Andrew