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| author |   Heiner Kallweit <hkallweit1@gmail.com> | 2018-07-21 15:48:47 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-07-24 14:41:08 -0700 |
| commit | b8f8c8eb408b36ad55dd41a616b3f51998880fb6 (patch) | |
| tree | 53949ff2a01904ec6b05ab9a4e00b2450cf3af1b /include/uapi/linux/mii.h | |
| parent | Merge branch 'net-whitespace-cleanups' (diff) | |
| download | wireguard-linux-b8f8c8eb408b36ad55dd41a616b3f51998880fb6.tar.xz wireguard-linux-b8f8c8eb408b36ad55dd41a616b3f51998880fb6.zip | |
net: phy: add GBit master / slave error detection
Certain PHY's have issues when operating in GBit slave mode and can
be forced to master mode. Examples are RTL8211C, also the Micrel PHY
driver has a DT setting to force master mode.
If two such chips are link partners the autonegotiation will fail.
Standard defines a self-clearing on read, latched-high bit to
indicate this error. Check this bit to inform the user.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/uapi/linux/mii.h')
| -rw-r--r-- | include/uapi/linux/mii.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/mii.h b/include/uapi/linux/mii.h index b5c2fdcf23fd..a506216591d6 100644 --- a/include/uapi/linux/mii.h +++ b/include/uapi/linux/mii.h @@ -136,6 +136,7 @@ #define CTL1000_ENABLE_MASTER 0x1000 /* 1000BASE-T Status register */ +#define LPA_1000MSFAIL 0x8000 /* Master/Slave resolution failure */ #define LPA_1000LOCALRXOK 0x2000 /* Link partner local receiver status */ #define LPA_1000REMRXOK 0x1000 /* Link partner remote receiver status */ #define LPA_1000FULL 0x0800 /* Link partner 1000BASE-T full duplex */ |