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amd-xgbe: Fix flow control setting logic

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The flow control negotiation logic is flawed and does not properly
advertise and process auto-negotiation of the flow control settings.
Update the flow control support to properly set the flow control
auto-negotiation settings and process the results approrpriately.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Lendacky, Thomas
2015-05-14 11:44:27 -05:00
committed by David S. Miller
parent 34bfff404c
commit c1ce2f7736
4 changed files with 72 additions and 40 deletions
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29
drivers/net/ethernet/amd/xgbe/xgbe-ethtool.c
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@@ -247,9 +247,9 @@ static void xgbe_get_pauseparam(struct net_device *netdev,
DBGPR("-->xgbe_get_pauseparam\n");
pause->autoneg = pdata->pause_autoneg;
pause->tx_pause = pdata->tx_pause;
pause->rx_pause = pdata->rx_pause;
pause->autoneg = pdata->phy.pause_autoneg;
pause->tx_pause = pdata->phy.tx_pause;
pause->rx_pause = pdata->phy.rx_pause;
DBGPR("<--xgbe_get_pauseparam\n");
}
@@ -265,19 +265,24 @@ static int xgbe_set_pauseparam(struct net_device *netdev,
DBGPR(" autoneg = %d, tx_pause = %d, rx_pause = %d\n",
pause->autoneg, pause->tx_pause, pause->rx_pause);
pdata->pause_autoneg = pause->autoneg;
if (pause->autoneg) {
if (pause->autoneg && (pdata->phy.autoneg != AUTONEG_ENABLE))
return -EINVAL;
pdata->phy.pause_autoneg = pause->autoneg;
pdata->phy.tx_pause = pause->tx_pause;
pdata->phy.rx_pause = pause->rx_pause;
pdata->phy.advertising &= ~ADVERTISED_Pause;
pdata->phy.advertising &= ~ADVERTISED_Asym_Pause;
if (pause->rx_pause) {
pdata->phy.advertising |= ADVERTISED_Pause;
pdata->phy.advertising |= ADVERTISED_Asym_Pause;
} else {
pdata->phy.advertising &= ~ADVERTISED_Pause;
pdata->phy.advertising &= ~ADVERTISED_Asym_Pause;
pdata->tx_pause = pause->tx_pause;
pdata->rx_pause = pause->rx_pause;
}
if (pause->tx_pause)
pdata->phy.advertising ^= ADVERTISED_Asym_Pause;
if (netif_running(netdev))
ret = pdata->phy_if.phy_config_aneg(pdata);