bnxt_en: Support for "ethtool -r" command

Restart autoneg if autoneg is enabled.

Signed-off-by: Deepak Khungar <deepak.khungar@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 20 insertions, 0 deletions

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
index c74ce698805e..a7e04ff4eaed 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
@@ -1849,6 +1849,25 @@ static int bnxt_get_module_eeprom(struct net_device *dev,
         return rc;
 }
 
+static int bnxt_nway_reset(struct net_device *dev)
+{
+        int rc = 0;
+
+        struct bnxt *bp = netdev_priv(dev);
+        struct bnxt_link_info *link_info = &bp->link_info;
+
+        if (!BNXT_SINGLE_PF(bp))
+                return -EOPNOTSUPP;
+
+        if (!(link_info->autoneg & BNXT_AUTONEG_SPEED))
+                return -EINVAL;
+
+        if (netif_running(dev))
+                rc = bnxt_hwrm_set_link_setting(bp, true, false);
+
+        return rc;
+}
+
 const struct ethtool_ops bnxt_ethtool_ops = {
         .get_link_ksettings     = bnxt_get_link_ksettings,
         .set_link_ksettings     = bnxt_set_link_ksettings,
@@ -1881,4 +1900,5 @@ const struct ethtool_ops bnxt_ethtool_ops = {
         .set_eee                = bnxt_set_eee,
         .get_module_info        = bnxt_get_module_info,
         .get_module_eeprom      = bnxt_get_module_eeprom,
+        .nway_reset             = bnxt_nway_reset
 };