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i40e: Add set_pauseparam to ethtool 

Add i40e implementation of setpauseparam to ethtool.

Change-ID: Ie7766b2091ec8f934737573c9ffd426081966718
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Catherine Sullivan 2014-06-04 08:45:27 +00:00 committed by Jeff Kirsher
parent c56999f948
commit 2becc35aa7
1 changed files with 76 additions and 0 deletions
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76
drivers/net/ethernet/intel/i40e/i40e_ethtool.c
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@ -457,6 +457,81 @@ static void i40e_get_pauseparam(struct net_device *netdev,
}
}
/**
* i40e_set_pauseparam - Set Flow Control parameter
* @netdev: network interface device structure
* @pause: return tx/rx flow control status
**/
static int i40e_set_pauseparam(struct net_device *netdev,
struct ethtool_pauseparam *pause)
{
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_pf *pf = np->vsi->back;
struct i40e_vsi *vsi = np->vsi;
struct i40e_hw *hw = &pf->hw;
struct i40e_link_status *hw_link_info = &hw->phy.link_info;
bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
i40e_status status;
u8 aq_failures;
int err;
if (vsi != pf->vsi[pf->lan_vsi])
return -EOPNOTSUPP;
if (pause->autoneg != ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
AUTONEG_ENABLE : AUTONEG_DISABLE)) {
netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n");
return -EOPNOTSUPP;
}
/* If we have link and don't have autoneg */
if (!test_bit(__I40E_DOWN, &pf->state) &&
!(hw_link_info->an_info & I40E_AQ_AN_COMPLETED)) {
/* Send message that it might not necessarily work*/
netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n");
}
if (hw->fc.current_mode == I40E_FC_PFC) {
netdev_info(netdev, "Priority flow control enabled. Cannot set link flow control.\n");
return -EOPNOTSUPP;
}
if (pause->rx_pause && pause->tx_pause)
hw->fc.requested_mode = I40E_FC_FULL;
else if (pause->rx_pause && !pause->tx_pause)
hw->fc.requested_mode = I40E_FC_RX_PAUSE;
else if (!pause->rx_pause && pause->tx_pause)
hw->fc.requested_mode = I40E_FC_TX_PAUSE;
else if (!pause->rx_pause && !pause->tx_pause)
hw->fc.requested_mode = I40E_FC_NONE;
else
return -EINVAL;
/* Set the fc mode and only restart an if link is up*/
status = i40e_set_fc(hw, &aq_failures, link_up);
if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) {
netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with error %d and status %d\n",
status, hw->aq.asq_last_status);
err = -EAGAIN;
}
if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) {
netdev_info(netdev, "Set fc failed on the set_phy_config call with error %d and status %d\n",
status, hw->aq.asq_last_status);
err = -EAGAIN;
}
if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) {
netdev_info(netdev, "Set fc failed on the update_link_info call with error %d and status %d\n",
status, hw->aq.asq_last_status);
err = -EAGAIN;
}
if (!test_bit(__I40E_DOWN, &pf->state))
return i40e_nway_reset(netdev);
return err;
}
static u32 i40e_get_msglevel(struct net_device *netdev)
{
struct i40e_netdev_priv *np = netdev_priv(netdev);
@ -1866,6 +1941,7 @@ static const struct ethtool_ops i40e_ethtool_ops = {
.get_ringparam = i40e_get_ringparam,
.set_ringparam = i40e_set_ringparam,
.get_pauseparam = i40e_get_pauseparam,
.set_pauseparam = i40e_set_pauseparam,
.get_msglevel = i40e_get_msglevel,
.set_msglevel = i40e_set_msglevel,
.get_rxnfc = i40e_get_rxnfc,