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91de5ac99a
Ong Boon Leong says:
====================
net: pcs, stmmac: add C37 AN SGMII support
This patch series adds MAC-side SGMII support to stmmac driver and it is
changed as follow:-
1/6: Refactor the current C73 implementation in pcs-xpcs to prepare for
adding C37 AN later.
2/6: Add MAC-side SGMII C37 AN support to pcs-xpcs
3,4/6: make phylink_parse_mode() to work for non-DT platform so that
we can use stmmac platform_data to set it.
5/6: Make stmmac_open() to only skip PHY init if C73 is used, otherwise
C37 AN will need phydev to be connected to phylink.
6/6: Finally, add pcs-xpcs SGMII interface support to Intel mGbE
controller.
The patch series have been tested on EHL CRB PCH TSN (eth2) controller
that has Marvell 88E1512 PHY attached over SGMII interface and the
iterative tests of speed change (AN) + ping test have been successful.
[63446.009295] intel-eth-pci 0000:00:1e.4 eth2: Link is Down
[63449.986365] intel-eth-pci 0000:00:1e.4 eth2: Link is Up - 1Gbps/Full - flow control off
[63449.987625] IPv6: ADDRCONF(NETDEV_CHANGE): eth2: link becomes ready
[63451.248064] intel-eth-pci 0000:00:1e.4 eth2: Link is Down
[63454.082366] intel-eth-pci 0000:00:1e.4 eth2: Link is Up - 100Mbps/Full - flow control off
[63454.083650] IPv6: ADDRCONF(NETDEV_CHANGE): eth2: link becomes ready
[63456.465179] intel-eth-pci 0000:00:1e.4 eth2: Link is Down
[63459.202367] intel-eth-pci 0000:00:1e.4 eth2: Link is Up - 10Mbps/Full - flow control off
[63459.203639] IPv6: ADDRCONF(NETDEV_CHANGE): eth2: link becomes ready
[63460.882832] intel-eth-pci 0000:00:1e.4 eth2: Link is Down
[63464.322366] intel-eth-pci 0000:00:1e.4 eth2: Link is Up - 1Gbps/Full - flow control off
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.