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Date: Wed, 2 Jul 2014 19:40:32 -0700
From: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To: davem@...emloft.net
Cc: Catherine Sullivan <catherine.sullivan@...el.com>,
netdev@...r.kernel.org, nhorman@...hat.com, sassmann@...hat.com,
Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net-next 13/14] i40e: Implement set_settings for ethtool
From: Catherine Sullivan <catherine.sullivan@...el.com>
Implement set_settings for ethtool in i40e.
Change-ID: Ie3c3fe18e8ff86c3f25b842844b3d9aabc9bba57
Signed-off-by: Catherine Sullivan <catherine.sullivan@...el.com>
Tested-by: Jim Young <jamesx.m.young@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 158 +++++++++++++++++++++++++
1 file changed, 158 insertions(+)
diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index fc86761..3abd3cb 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -412,6 +412,163 @@ no_valid_phy_type:
return 0;
}
+/**
+ * i40e_set_settings - Set Speed and Duplex
+ * @netdev: network interface device structure
+ * @ecmd: ethtool command
+ *
+ * Set speed/duplex per media_types advertised/forced
+ **/
+static int i40e_set_settings(struct net_device *netdev,
+ struct ethtool_cmd *ecmd)
+{
+ struct i40e_netdev_priv *np = netdev_priv(netdev);
+ struct i40e_aq_get_phy_abilities_resp abilities;
+ struct i40e_aq_set_phy_config config;
+ struct i40e_pf *pf = np->vsi->back;
+ struct i40e_vsi *vsi = np->vsi;
+ struct i40e_hw *hw = &pf->hw;
+ struct ethtool_cmd safe_ecmd;
+ i40e_status status = 0;
+ bool change = false;
+ int err = 0;
+ u8 autoneg;
+ u32 advertise;
+
+ if (vsi != pf->vsi[pf->lan_vsi])
+ return -EOPNOTSUPP;
+
+ if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET &&
+ hw->phy.media_type != I40E_MEDIA_TYPE_FIBER &&
+ hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE)
+ return -EOPNOTSUPP;
+
+ /* get our own copy of the bits to check against */
+ memset(&safe_ecmd, 0, sizeof(struct ethtool_cmd));
+ i40e_get_settings(netdev, &safe_ecmd);
+
+ /* save autoneg and speed out of ecmd */
+ autoneg = ecmd->autoneg;
+ advertise = ecmd->advertising;
+
+ /* set autoneg and speed back to what they currently are */
+ ecmd->autoneg = safe_ecmd.autoneg;
+ ecmd->advertising = safe_ecmd.advertising;
+
+ ecmd->cmd = safe_ecmd.cmd;
+ /* If ecmd and safe_ecmd are not the same now, then they are
+ * trying to set something that we do not support
+ */
+ if (memcmp(ecmd, &safe_ecmd, sizeof(struct ethtool_cmd)))
+ return -EOPNOTSUPP;
+
+ while (test_bit(__I40E_CONFIG_BUSY, &vsi->state))
+ usleep_range(1000, 2000);
+
+ /* Get the current phy config */
+ status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
+ NULL);
+ if (status)
+ return -EAGAIN;
+
+ /* Copy link_speed and abilities to config in case they are not
+ * set below
+ */
+ memset(&config, 0, sizeof(struct i40e_aq_set_phy_config));
+ config.link_speed = abilities.link_speed;
+ config.abilities = abilities.abilities;
+
+ /* Check autoneg */
+ if (autoneg == AUTONEG_ENABLE) {
+ /* If autoneg is not supported, return error */
+ if (!(safe_ecmd.supported & SUPPORTED_Autoneg)) {
+ netdev_info(netdev, "Autoneg not supported on this phy\n");
+ return -EINVAL;
+ }
+ /* If autoneg was not already enabled */
+ if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) {
+ config.abilities = abilities.abilities |
+ I40E_AQ_PHY_ENABLE_AN;
+ change = true;
+ }
+ } else {
+ /* If autoneg is supported 10GBASE_T is the only phy that
+ * can disable it, so otherwise return error
+ */
+ if (safe_ecmd.supported & SUPPORTED_Autoneg &&
+ hw->phy.link_info.phy_type != I40E_PHY_TYPE_10GBASE_T) {
+ netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
+ return -EINVAL;
+ }
+ /* If autoneg is currently enabled */
+ if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) {
+ config.abilities = abilities.abilities |
+ ~I40E_AQ_PHY_ENABLE_AN;
+ change = true;
+ }
+ }
+
+ if (advertise & ~safe_ecmd.supported)
+ return -EINVAL;
+
+ if (advertise & ADVERTISED_100baseT_Full)
+ if (!(abilities.link_speed & I40E_LINK_SPEED_100MB)) {
+ config.link_speed |= I40E_LINK_SPEED_100MB;
+ change = true;
+ }
+ if (advertise & ADVERTISED_1000baseT_Full ||
+ advertise & ADVERTISED_1000baseKX_Full)
+ if (!(abilities.link_speed & I40E_LINK_SPEED_1GB)) {
+ config.link_speed |= I40E_LINK_SPEED_1GB;
+ change = true;
+ }
+ if (advertise & ADVERTISED_10000baseT_Full ||
+ advertise & ADVERTISED_10000baseKX4_Full ||
+ advertise & ADVERTISED_10000baseKR_Full)
+ if (!(abilities.link_speed & I40E_LINK_SPEED_10GB)) {
+ config.link_speed |= I40E_LINK_SPEED_10GB;
+ change = true;
+ }
+ if (advertise & ADVERTISED_40000baseKR4_Full ||
+ advertise & ADVERTISED_40000baseCR4_Full ||
+ advertise & ADVERTISED_40000baseSR4_Full ||
+ advertise & ADVERTISED_40000baseLR4_Full)
+ if (!(abilities.link_speed & I40E_LINK_SPEED_40GB)) {
+ config.link_speed |= I40E_LINK_SPEED_40GB;
+ change = true;
+ }
+
+ if (change) {
+ /* copy over the rest of the abilities */
+ config.phy_type = abilities.phy_type;
+ config.eee_capability = abilities.eee_capability;
+ config.eeer = abilities.eeer_val;
+ config.low_power_ctrl = abilities.d3_lpan;
+
+ /* If link is up set link and an so changes take effect */
+ if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP)
+ config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
+
+ /* make the aq call */
+ status = i40e_aq_set_phy_config(hw, &config, NULL);
+ if (status) {
+ netdev_info(netdev, "Set phy config failed with error %d.\n",
+ status);
+ return -EAGAIN;
+ }
+
+ status = i40e_update_link_info(hw, true);
+ if (status)
+ netdev_info(netdev, "Updating link info failed with error %d\n",
+ status);
+
+ } else {
+ netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
+ }
+
+ return err;
+}
+
static int i40e_nway_reset(struct net_device *netdev)
{
/* restart autonegotiation */
@@ -1929,6 +2086,7 @@ static int i40e_set_channels(struct net_device *dev,
static const struct ethtool_ops i40e_ethtool_ops = {
.get_settings = i40e_get_settings,
+ .set_settings = i40e_set_settings,
.get_drvinfo = i40e_get_drvinfo,
.get_regs_len = i40e_get_regs_len,
.get_regs = i40e_get_regs,
--
1.9.3
--
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