> -----Original Message----- > From: Antoine Tenart [mailto:antoine.ten...@free-electrons.com] > Sent: Wednesday, January 03, 2018 5:32 PM > To: Andrew Lunn <and...@lunn.ch> > Cc: Antoine Tenart <antoine.ten...@free-electrons.com>; > da...@davemloft.net; kis...@ti.com; gregory.clem...@free-electrons.com; > li...@armlinux.org.uk; m...@semihalf.com; Stefan Chulski > <stef...@marvell.com>; Yan Markman <ymark...@marvell.com>; > thomas.petazz...@free-electrons.com; miquel.ray...@free-electrons.com; > Nadav Haklai <nad...@marvell.com>; netdev@vger.kernel.org; linux- > ker...@vger.kernel.org > Subject: [EXT] Re: [PATCH net-next v2 4/4] net: mvpp2: 2500baseX support > > External Email > > ---------------------------------------------------------------------- > Hi Andrew, > > On Wed, Jan 03, 2018 at 04:20:36PM +0100, Andrew Lunn wrote: > > > @@ -4612,6 +4616,9 @@ static int mvpp22_comphy_init(struct > mvpp2_port *port) > > > case PHY_INTERFACE_MODE_1000BASEX: > > > mode = PHY_MODE_SGMII; > > > break; > > > + case PHY_INTERFACE_MODE_2500BASEX: > > > + mode = PHY_MODE_2500SGMII; > > > + break; > > > > I think this is the source of confusion with linux/phy.h and > > linux/phy/phy.h. > > > > What would PHY_INTERFACE_MODE_2500SGMII use? > > > > Where is this all getting confused? Should the caller to > > mvpp22_comphy_init() actually be passing > PHY_INTERFACE_MODE_2500SGMII? > > What is the MAC actually doing at this point? 2500BASEX or 2500SGMII? > > PHY_INTERFACE_MODE_2500BASEX is the PHY mode whereas > PHY_MODE_2500SGMII is the mode used by the common PHY driver (i.e. the > one configuring the serdes lanes). > > There's no PHY_INTERFACE_MODE_2500SGMII mode. > > > At minimum there needs to be a comment that this is not a typ0, > > otherwise you are going to get patches submitted to 'fix' this. > > Sure, I can add a comment to state this function is a translation between the > net PHY mode and the generic PHY mode (it's a n-to-1 translation). >
Maybe we should rename enum phy_mode to comphy_mode and PHY_MODE_2500SGMII to COMPHY_MODE_2500SGMII. Since this enum set MAC to PHY serdes communication mode, not PHY to PHY communication mode. Stefan.
