RE: [PATCH V2 net-next 2/3] lan78xx: add ethtool set & get pause functions
From: <Woojung.Huh@microchip.com>
Date: 2016-02-19 00:03:52
quoted
Add ethtool operations of set_pauseram and get_pauseparm.[...]quoted
+static void lan78xx_get_pause(struct net_device *net, + struct ethtool_pauseparam *pause) +{ + struct lan78xx_net *dev = netdev_priv(net); + struct phy_device *phydev = net->phydev; + struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET }; + + phy_ethtool_gset(phydev, &ecmd); + + pause->autoneg = dev->fc_autoneg; + + if (dev->fc_autoneg) { + if (dev->fc_autoneg_control & FLOW_CTRL_TX) + pause->tx_pause = 1; + + if (dev->fc_autoneg_control & FLOW_CTRL_RX) + pause->rx_pause = 1;This is incorrect; you should always return the manual settings (fc_request_control flags) here. If autonegotiation is enabled then your get_settings function will return the actual pause flags. Ben.
Ben, thanks for comments. How about comment in include/uapi/linux/ethtool.h? It says ** struct ethtool_pauseparam - Ethernet pause (flow control) parameters ... * If @autoneg is non-zero, the MAC is configured to send and/or * receive pause frames according to the result of autonegotiation. Doesn't this mean get_pauseparam() returns pause settings based on Result of autonegotation? Not manual settings of rx_param & tx_param? Woojung