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net: phylink: Fix flow control resolution
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: 9525ae8395
("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>
This commit is contained in:
parent
b82573fdbe
commit
63b2ed4e10
1 changed files with 3 additions and 3 deletions
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@ -376,8 +376,8 @@ static void phylink_get_fixed_state(struct phylink *pl, struct phylink_link_stat
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* Local device Link partner
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* Pause AsymDir Pause AsymDir Result
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* 1 X 1 X TX+RX
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* 0 1 1 1 RX
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* 1 1 0 1 TX
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* 0 1 1 1 TX
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* 1 1 0 1 RX
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*/
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static void phylink_resolve_flow(struct phylink *pl,
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struct phylink_link_state *state)
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@ -398,7 +398,7 @@ static void phylink_resolve_flow(struct phylink *pl,
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new_pause = MLO_PAUSE_TX | MLO_PAUSE_RX;
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else if (pause & MLO_PAUSE_ASYM)
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new_pause = state->pause & MLO_PAUSE_SYM ?
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MLO_PAUSE_RX : MLO_PAUSE_TX;
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MLO_PAUSE_TX : MLO_PAUSE_RX;
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} else {
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new_pause = pl->link_config.pause & MLO_PAUSE_TXRX_MASK;
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}
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