bnxt_en: Fix ethtool autoneg logic.

1. Determine autoneg on|off setting from link_info->autoneg.  Using the
firmware returned setting can be misleading if autoneg is changed and
there hasn't been a phy update from the firmware.

2. If autoneg is disabled, link_info->autoneg should be set to 0 to
indicate both speed and flow control autoneg are disabled.

3. To enable autoneg flow control, speed autoneg must be enabled.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
index 922b898..7240307 100644 (file)
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
@@ -561,7 +561,7 @@ static int bnxt_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
        if (link_info->auto_link_speeds)
                cmd->supported |= SUPPORTED_Autoneg;
 
-       if (BNXT_AUTO_MODE(link_info->auto_mode)) {
+       if (link_info->autoneg) {
                cmd->advertising =
                        bnxt_fw_to_ethtool_advertised_spds(link_info);
                cmd->advertising |= ADVERTISED_Autoneg;
@@ -729,7 +729,7 @@ static int bnxt_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
                speed = ethtool_cmd_speed(cmd);
                link_info->req_link_speed = bnxt_get_fw_speed(dev, speed);
                link_info->req_duplex = BNXT_LINK_DUPLEX_FULL;
-               link_info->autoneg &= ~BNXT_AUTONEG_SPEED;
+               link_info->autoneg = 0;
                link_info->advertising = 0;
        }
 
@@ -748,8 +748,7 @@ static void bnxt_get_pauseparam(struct net_device *dev,
 
        if (BNXT_VF(bp))
                return;
-       epause->autoneg = !!(link_info->auto_pause_setting &
-                            BNXT_LINK_PAUSE_BOTH);
+       epause->autoneg = !!(link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL);
        epause->rx_pause = ((link_info->pause & BNXT_LINK_PAUSE_RX) != 0);
        epause->tx_pause = ((link_info->pause & BNXT_LINK_PAUSE_TX) != 0);
 }
@@ -765,6 +764,9 @@ static int bnxt_set_pauseparam(struct net_device *dev,
                return rc;
 
        if (epause->autoneg) {
+               if (!(link_info->autoneg & BNXT_AUTONEG_SPEED))
+                       return -EINVAL;
+
                link_info->autoneg |= BNXT_AUTONEG_FLOW_CTRL;
                link_info->req_flow_ctrl |= BNXT_LINK_PAUSE_BOTH;
        } else {