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net: phylink: allow half-duplex modes with RATE_MATCH_PAUSE

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PHYs performing rate-matching using MAC-side flow-control always
perform duplex-matching as well in case they are supporting
half-duplex modes at all.
No longer remove half-duplex modes from their capabilities.

Suggested-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/b157c0c289cfba024039a96e635d037f9d946745.1728617993.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Daniel Golle
2024-10-11 04:40:39 +01:00
committed by Jakub Kicinski
parent 42386ae4de
commit ff1585e971
1 changed files with 1 additions and 8 deletions
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9
drivers/net/phy/phylink.c
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@@ -599,15 +599,8 @@ static unsigned long phylink_get_capabilities(phy_interface_t interface,
* max speed at full duplex.
*/
if (mac_capabilities &
phylink_cap_from_speed_duplex(max_speed, DUPLEX_FULL)) {
/* Although a duplex-matching phy might exist, we
* conservatively remove these modes because the MAC
* will not be aware of the half-duplex nature of the
* link.
*/
phylink_cap_from_speed_duplex(max_speed, DUPLEX_FULL))
matched_caps = GENMASK(__fls(caps), __fls(MAC_10HD));
matched_caps &= ~(MAC_1000HD | MAC_100HD | MAC_10HD);
}
break;
}
case RATE_MATCH_CRS: