From mboxrd@z Thu Jan 1 00:00:00 1970 From: Zhu Yanjun Subject: [PATCHv2 1/1] IB/ipoib: add get_settings in ethtool Date: Wed, 26 Apr 2017 05:02:34 -0400 Message-ID: <1493197354-3025-1-git-send-email-yanjun.zhu@oracle.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Return-path: Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, sean.hefty-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org, hal.rosenstock-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, yuval.shaia-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org, haakon.bugge-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org, wen.gang.wang-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org, joe.jin-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org, junxiao.bi-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org List-Id: linux-rdma@vger.kernel.org In order to let the bonding driver report the correct speed of the underlaying interfaces, when they are IPoIB, the ethtool function get_settings() in the IPoIB driver is implemented. Cc: Joe Jin Cc: Junxiao Bi Reviewed-by: Håkon Bugge Reviewed-by: Yuval Shaia Signed-off-by: Zhu Yanjun --- drivers/infiniband/ulp/ipoib/ipoib_ethtool.c | 50 ++++++++++++++++++++++++++++ include/uapi/linux/ethtool.h | 1 + 2 files changed, 51 insertions(+) diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c b/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c index bac455a..7ebe52a 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c @@ -155,7 +155,57 @@ 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_settings(struct net_device *netdev, + struct ethtool_cmd *ecmd) +{ + struct ipoib_dev_priv *priv = netdev_priv(netdev); + struct ib_port_attr attr; + int ret, speed, width; + + if (!netif_carrier_ok(netdev)) { + ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN); + ecmd->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; + + ethtool_cmd_speed_set(ecmd, speed * width); + ecmd->duplex = DUPLEX_FULL; + + return 0; +} + static const struct ethtool_ops ipoib_ethtool_ops = { + .get_settings = ipoib_get_settings, .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 3dc91a4..55c3dcd 100644 --- a/include/uapi/linux/ethtool.h +++ b/include/uapi/linux/ethtool.h @@ -1493,6 +1493,7 @@ 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 -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html