diff options
| author | Zhu Yanjun <yanjun.zhu@oracle.com> | 2017-05-04 01:24:51 -0400 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2017-05-04 19:31:46 -0400 |
| commit | 0d7e2d2166f6b0b7d1959ca858052a15feb574cc (patch) | |
| tree | 65bc75a84e0c268467bd06545bb297f8ccc6d042 | |
| parent | 24b43c99647bf9be4995e6a6c9c3a923c147770a (diff) | |
IB/ipoib: add get_link_ksettings in ethtool
In order to let the bonding driver report the correct speed
of the underlaying interfaces, when they are IPoIB, the ethtool
function get_link_ksettings() in the IPoIB driver is implemented.
Cc: Joe Jin <joe.jin@oracle.com>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Suggested-by: Håkon Bugge <Haakon.Bugge@oracle.com>
Signed-off-by: Zhu Yanjun <yanjun.zhu@oracle.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
| -rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_ethtool.c | 59 | ||||
| -rw-r--r-- | include/uapi/linux/ethtool.h | 1 |
2 files changed, 60 insertions, 0 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c b/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c index 379c02fb4181..874b24366e4d 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c @@ -155,7 +155,66 @@ static int ipoib_get_sset_count(struct net_device __always_unused *dev, return -EOPNOTSUPP; } +/* Return lane speed in unit of 1e6 bit/sec */ +static inline int ib_speed_enum_to_int(int speed) +{ + switch (speed) { + case IB_SPEED_SDR: + return SPEED_2500; + case IB_SPEED_DDR: + return SPEED_5000; + case IB_SPEED_QDR: + case IB_SPEED_FDR10: + return SPEED_10000; + case IB_SPEED_FDR: + return SPEED_14000; + case IB_SPEED_EDR: + return SPEED_25000; + } + + return SPEED_UNKNOWN; +} + +static int ipoib_get_link_ksettings(struct net_device *netdev, + struct ethtool_link_ksettings *cmd) +{ + struct ipoib_dev_priv *priv = netdev_priv(netdev); + struct ib_port_attr attr; + int ret, speed, width; + + if (!netif_carrier_ok(netdev)) { + cmd->base.speed = SPEED_UNKNOWN; + cmd->base.duplex = DUPLEX_UNKNOWN; + return 0; + } + + ret = ib_query_port(priv->ca, priv->port, &attr); + if (ret < 0) + return -EINVAL; + + speed = ib_speed_enum_to_int(attr.active_speed); + width = ib_width_enum_to_int(attr.active_width); + + if (speed < 0 || width < 0) + return -EINVAL; + + /* Except the following are set, the other members of + * the struct ethtool_link_settings are initialized to + * zero in the function __ethtool_get_link_ksettings. + */ + cmd->base.speed = speed * width; + cmd->base.duplex = DUPLEX_FULL; + + cmd->base.phy_address = 0xFF; + + cmd->base.autoneg = AUTONEG_ENABLE; + cmd->base.port = PORT_OTHER; + + return 0; +} + static const struct ethtool_ops ipoib_ethtool_ops = { + .get_link_ksettings = ipoib_get_link_ksettings, .get_drvinfo = ipoib_get_drvinfo, .get_coalesce = ipoib_get_coalesce, .set_coalesce = ipoib_set_coalesce, diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h index 5f4ea28eabe4..d179d7767f51 100644 --- a/include/uapi/linux/ethtool.h +++ b/include/uapi/linux/ethtool.h @@ -1494,6 +1494,7 @@ enum ethtool_link_mode_bit_indices { #define SPEED_2500 2500 #define SPEED_5000 5000 #define SPEED_10000 10000 +#define SPEED_14000 14000 #define SPEED_20000 20000 #define SPEED_25000 25000 #define SPEED_40000 40000 |