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Date: Wed, 31 Aug 2011 18:34:30 +0100 From: Ben Hutchings <bhutchings@...arflare.com> To: Mark Einon <mark.einon@...il.com> Cc: netdev@...r.kernel.org, davem@...emloft.net Subject: Re: [PATCH] mii: Remove references to DP83840 PHY in mii.h On Wed, 2011-08-31 at 16:35 +0100, Mark Einon wrote: > There are references to this PHY chip in the generic mii.h header, so removing them. > > Signed-off-by: Mark Einon <mark.einon@...il.com> > --- > include/linux/mii.h | 12 ++++++------ > 1 files changed, 6 insertions(+), 6 deletions(-) > > diff --git a/include/linux/mii.h b/include/linux/mii.h > index 103113a..4c3cfb5 100644 > --- a/include/linux/mii.h > +++ b/include/linux/mii.h > @@ -40,12 +40,12 @@ > #define BMCR_CTST 0x0080 /* Collision test */ > #define BMCR_FULLDPLX 0x0100 /* Full duplex */ > #define BMCR_ANRESTART 0x0200 /* Auto negotiation restart */ > -#define BMCR_ISOLATE 0x0400 /* Disconnect DP83840 from MII */ > -#define BMCR_PDOWN 0x0800 /* Powerdown the DP83840 */ > +#define BMCR_ISOLATE 0x0400 /* Disconnect PHY from MII */ Since you're trying to improve these comments, I think this could do with further improvement. When this bit is set, the PHY's data paths are isolated from the MII (or other interface to the MAC). The control path is still connected to the management interface (MDIO), which is important when we want to clear this bit! So it would be better to say something like 'Isolate data paths fromn MII'. > +#define BMCR_PDOWN 0x0800 /* Powerdown */ This selects a low-power state (if implemented). It doesn't entirely turn the PHY off, and at least the management interface must stil be functional. So it would be better to say 'Request low-power state'. > #define BMCR_ANENABLE 0x1000 /* Enable auto negotiation */ > #define BMCR_SPEED100 0x2000 /* Select 100Mbps */ > #define BMCR_LOOPBACK 0x4000 /* TXD loopback bits */ > -#define BMCR_RESET 0x8000 /* Reset the DP83840 */ > +#define BMCR_RESET 0x8000 /* Reset */ > > /* Basic mode status register. */ > #define BMSR_ERCAP 0x0001 /* Ext-reg capability */ > @@ -55,9 +55,9 @@ > #define BMSR_RFAULT 0x0010 /* Remote fault detected */ > #define BMSR_ANEGCOMPLETE 0x0020 /* Auto-negotiation complete */ > #define BMSR_RESV 0x00c0 /* Unused... */ > -#define BMSR_ESTATEN 0x0100 /* Extended Status in R15 */ > -#define BMSR_100HALF2 0x0200 /* Can do 100BASE-T2 HDX */ > -#define BMSR_100FULL2 0x0400 /* Can do 100BASE-T2 FDX */ > +#define BMSR_ESTATEN 0x0100 /* Extended Status in R15 */ > +#define BMSR_100HALF2 0x0200 /* Can do 100BASE-T2 HDX */ > +#define BMSR_100FULL2 0x0400 /* Can do 100BASE-T2 FDX */ This formatting change is unrelated. If you're going to fix formatting then please convert spaces to tabs after each name and value. Ben. > #define BMSR_10HALF 0x0800 /* Can do 10mbps, half-duplex */ > #define BMSR_10FULL 0x1000 /* Can do 10mbps, full-duplex */ > #define BMSR_100HALF 0x2000 /* Can do 100mbps, half-duplex */ -- Ben Hutchings, Staff Engineer, Solarflare Not speaking for my employer; that's the marketing department's job. They asked us to note that Solarflare product names are trademarked. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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