From: Stefan Chulski stefanc@marvell.com
[ Upstream commit 63b2ed4e10b2e6c913e1d8cdd728e7fba4115a3d ]
Regarding to IEEE 802.3-2015 standard section 2 28B.3 Priority resolution - Table 28-3 - Pause resolution
In case of Local device Pause=1 AsymDir=0, Link partner Pause=1 AsymDir=1, Local device resolution should be enable PAUSE transmit, disable PAUSE receive. And in case of Local device Pause=1 AsymDir=1, Link partner Pause=1 AsymDir=0, Local device resolution should be enable PAUSE receive, disable PAUSE transmit.
Fixes: 9525ae83959b ("phylink: add phylink infrastructure") Signed-off-by: Stefan Chulski stefanc@marvell.com Reported-by: Shaul Ben-Mayor shaulb@marvell.com Acked-by: Russell King rmk+kernel@armlinux.org.uk Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/phy/phylink.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
--- a/drivers/net/phy/phylink.c +++ b/drivers/net/phy/phylink.c @@ -380,8 +380,8 @@ static void phylink_get_fixed_state(stru * Local device Link partner * Pause AsymDir Pause AsymDir Result * 1 X 1 X TX+RX - * 0 1 1 1 RX - * 1 1 0 1 TX + * 0 1 1 1 TX + * 1 1 0 1 RX */ static void phylink_resolve_flow(struct phylink *pl, struct phylink_link_state *state) @@ -402,7 +402,7 @@ static void phylink_resolve_flow(struct new_pause = MLO_PAUSE_TX | MLO_PAUSE_RX; else if (pause & MLO_PAUSE_ASYM) new_pause = state->pause & MLO_PAUSE_SYM ? - MLO_PAUSE_RX : MLO_PAUSE_TX; + MLO_PAUSE_TX : MLO_PAUSE_RX; } else { new_pause = pl->link_config.pause & MLO_PAUSE_TXRX_MASK; }