From: abhijit <abhijitnaik27@gmail.com>
To: netdev@vger.kernel.org
Subject: Is advertising of 2500Mbps support must from phy device to set phy at 2500Mbps link speed
Date: Tue, 5 Feb 2019 11:39:34 +0530 [thread overview]
Message-ID: <496b56c8-666a-7c5c-f3c6-0e709584ec0d@gmail.com> (raw)
Hi All,
We are using Ethernet MAC which has integrated Phy. This phy supports
speed up to 10000Mbps. The phy has, 1000Base-X PCS(Physical Coding
Sub-layer) followed by SerDes interface to support 10Mbps to 10000Mbps.
Currently we are trying to get this phy at 2500Mbps. This device has 16
registers that corresponds to Clause 37, which can be used to advertise
speed till 1000Mbps.
So my question is,
1. Without phy advertising its capability of 2500Mbps, is there any way
I can set phy speed at 2500Mbps?
2. I tried disabling auto-negotiation and setting speed at 2500Mbps with
ethtool (ethtool -s eth0 speed 2500 autoneg off), but the ethtool
reported this configuration as invalid?
3. At the end we are targeting print of "link up (2500/Full)"
Regards,
Abhijit
next reply other threads:[~2019-02-05 6:09 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-05 6:09 abhijit [this message]
2019-02-05 14:56 ` Is advertising of 2500Mbps support must from phy device to set phy at 2500Mbps link speed Andrew Lunn
2019-02-06 13:23 ` abhijit
2019-02-06 13:38 ` Andrew Lunn
2019-02-08 10:37 ` abhijit
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