net: phylink: Adjust link settings based on rate matching

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If the phy is configured to use pause-based rate matching, ensure that
the link is full duplex with pause frame reception enabled. As
suggested, if pause-based rate matching is enabled by the phy, then
pause reception is unconditionally enabled.

The interface duplex is determined based on the rate matching type.
When rate matching is enabled, so is the speed. We assume the maximum
interface speed is used. This is only relevant for MLO_AN_PHY. For
MLO_AN_INBAND, the MAC/PCS's view of the interface speed will be used.

Although there are no RATE_ADAPT_CRS phys in-tree, it has been added for
comparison (and the implementation is quite simple).

Co-developed-by: Russell King <linux@armlinux.org.uk>
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Sean Anderson 2022-09-20 18:12:32 -04:00 • committed by David S. Miller

parent 0c3e10cb44

commit ae0e4bb2a0

2 changed files with 128 additions and 12 deletions

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135

drivers/net/phy/phylink.c

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5

include/linux/phylink.h

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