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net: phylink: pcs: add 802.3 clause 22 helpers

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Implement helpers for PCS accessed via the MII bus using 802.3 clause
22 cycles, conforming to 802.3 clause 37 and Cisco SGMII specifications
for the advertisement word.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Russell King
2020-03-17 14:52:36 +00:00
committed by David S. Miller
parent 6cc7cf8125
commit 74db1c18d8
3 changed files with 217 additions and 0 deletions
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6
include/linux/phylink.h
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@@ -317,4 +317,10 @@ int phylink_mii_ioctl(struct phylink *, struct ifreq *, int);
void phylink_set_port_modes(unsigned long *bits);
void phylink_helper_basex_speed(struct phylink_link_state *state);
void phylink_mii_c22_pcs_get_state(struct mdio_device *pcs,
struct phylink_link_state *state);
int phylink_mii_c22_pcs_set_advertisement(struct mdio_device *pcs,
const struct phylink_link_state *state);
void phylink_mii_c22_pcs_an_restart(struct mdio_device *pcs);
#endif