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Diffstat (limited to 'Documentation/networking/phy.rst')
| -rw-r--r-- | Documentation/networking/phy.rst | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/Documentation/networking/phy.rst b/Documentation/networking/phy.rst index d11329a08984..b0f2ef83735d 100644 --- a/Documentation/networking/phy.rst +++ b/Documentation/networking/phy.rst @@ -20,7 +20,7 @@ sometimes quite different) ethernet controllers connected to the same management bus, it is difficult to ensure safe use of the bus. Since the PHYs are devices, and the management busses through which they are -accessed are, in fact, busses, the PHY Abstraction Layer treats them as such. +accessed are, in fact, busses, the PHY Abstraction Layer (PAL) treats them as such. In doing so, it has these goals: #. Increase code-reuse @@ -315,7 +315,7 @@ Some of the interface modes are described below: only the port id, but also so-called "extensions". The only documented extension so-far in the specification is the inclusion of timestamps, for PTP-enabled PHYs. This mode isn't compatible with QSGMII, but offers the - same capabilities in terms of link speed and negociation. + same capabilities in terms of link speed and negotiation. ``PHY_INTERFACE_MODE_1000BASEKX`` This is 1000BASE-X as defined by IEEE 802.3 Clause 36 with Clause 73 @@ -323,6 +323,23 @@ Some of the interface modes are described below: contrast with the 1000BASE-X phy mode used for Clause 38 and 39 PMDs, this interface mode has different autonegotiation and only supports full duplex. +``PHY_INTERFACE_MODE_PSGMII`` + This is the Penta SGMII mode, it is similar to QSGMII but it combines 5 + SGMII lines into a single link compared to 4 on QSGMII. + +``PHY_INTERFACE_MODE_10G_QXGMII`` + Represents the 10G-QXGMII PHY-MAC interface as defined by the Cisco USXGMII + Multiport Copper Interface document. It supports 4 ports over a 10.3125 GHz + SerDes lane, each port having speeds of 2.5G / 1G / 100M / 10M achieved + through symbol replication. The PCS expects the standard USXGMII code word. + +``PHY_INTERFACE_MODE_MIILITE`` + Non-standard, simplified MII mode, without TXER, RXER, CRS and COL signals + as defined for the MII. The absence of COL signal makes half-duplex link + modes impossible but does not interfere with BroadR-Reach link modes on + Broadcom (and other two-wire Ethernet) PHYs, because they are full-duplex + only. + Pause frames / flow control =========================== |