Techwizz/kernel-fxtec-pro1x
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ixgbe: fix ethtool -A|a behavior

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We were basicly ignoring ethtool users request for FC autoneg
and replying to queries with a "best guess".  This patch
enables the driver to store if we want to enable/disable
autoneg FC and do the correct behavior.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Don Skidmore 2009-03-31 21:35:05 +00:00 committed by David S. Miller
parent a20a1199a8
commit 71fd570b23
5 changed files with 23 additions and 5 deletions
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3
drivers/net/ixgbe/ixgbe_82598.c
View file

@ -411,7 +411,8 @@ static s32 ixgbe_setup_fc_82598(struct ixgbe_hw *hw, s32 packetbuf_num)
/* Decide whether to use autoneg or not. */
hw->mac.ops.check_link(hw, &speed, &link_up, false);
if (hw->phy.multispeed_fiber && (speed == IXGBE_LINK_SPEED_1GB_FULL))
if (!hw->fc.disable_fc_autoneg && hw->phy.multispeed_fiber &&
(speed == IXGBE_LINK_SPEED_1GB_FULL))
ret_val = ixgbe_fc_autoneg(hw);
if (ret_val)

3
drivers/net/ixgbe/ixgbe_common.c
View file

@ -1937,7 +1937,8 @@ s32 ixgbe_setup_fc_generic(struct ixgbe_hw *hw, s32 packetbuf_num)
/* Decide whether to use autoneg or not. */
hw->mac.ops.check_link(hw, &speed, &link_up, false);
if (hw->phy.multispeed_fiber && (speed == IXGBE_LINK_SPEED_1GB_FULL))
if (!hw->fc.disable_fc_autoneg && hw->phy.multispeed_fiber &&
(speed == IXGBE_LINK_SPEED_1GB_FULL))
ret_val = ixgbe_fc_autoneg(hw);
if (ret_val)

19
drivers/net/ixgbe/ixgbe_ethtool.c
View file

@ -234,7 +234,16 @@ static void ixgbe_get_pauseparam(struct net_device *netdev,
struct ixgbe_adapter *adapter = netdev_priv(netdev);
struct ixgbe_hw *hw = &adapter->hw;
pause->autoneg = (hw->fc.current_mode == ixgbe_fc_full ? 1 : 0);
/*
* Flow Control Autoneg isn't on if
* - we didn't ask for it OR
* - it failed, we know this by tx & rx being off
*/
if (hw->fc.disable_fc_autoneg ||
(hw->fc.current_mode == ixgbe_fc_none))
pause->autoneg = 0;
else
pause->autoneg = 1;
if (hw->fc.current_mode == ixgbe_fc_rx_pause) {
pause->rx_pause = 1;
@ -252,8 +261,12 @@ static int ixgbe_set_pauseparam(struct net_device *netdev,
struct ixgbe_adapter *adapter = netdev_priv(netdev);
struct ixgbe_hw *hw = &adapter->hw;
if ((pause->autoneg == AUTONEG_ENABLE) ||
(pause->rx_pause && pause->tx_pause))
if (pause->autoneg != AUTONEG_ENABLE)
hw->fc.disable_fc_autoneg = true;
else
hw->fc.disable_fc_autoneg = false;
if (pause->rx_pause && pause->tx_pause)
hw->fc.requested_mode = ixgbe_fc_full;
else if (pause->rx_pause && !pause->tx_pause)
hw->fc.requested_mode = ixgbe_fc_rx_pause;

2
drivers/net/ixgbe/ixgbe_main.c
View file

@ -3167,10 +3167,12 @@ static int __devinit ixgbe_sw_init(struct ixgbe_adapter *adapter)
/* default flow control settings */
hw->fc.requested_mode = ixgbe_fc_full;
hw->fc.current_mode = ixgbe_fc_full; /* init for ethtool output */
hw->fc.high_water = IXGBE_DEFAULT_FCRTH;
hw->fc.low_water = IXGBE_DEFAULT_FCRTL;
hw->fc.pause_time = IXGBE_DEFAULT_FCPAUSE;
hw->fc.send_xon = true;
hw->fc.disable_fc_autoneg = false;
/* enable itr by default in dynamic mode */
adapter->itr_setting = 1;

1
drivers/net/ixgbe/ixgbe_type.h
View file

@ -2005,6 +2005,7 @@ struct ixgbe_fc_info {
u16 pause_time; /* Flow Control Pause timer */
bool send_xon; /* Flow control send XON */
bool strict_ieee; /* Strict IEEE mode */
bool disable_fc_autoneg; /* Turn off autoneg FC mode */
enum ixgbe_fc_mode current_mode; /* FC mode in effect */
enum ixgbe_fc_mode requested_mode; /* FC mode requested by caller */
};