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.
Run ethtool command, the result is as below:
[root@xxx ~]#ethtool ib0
Settings for ib0:
Supported ports: [ ]
Supported link modes: Not reported
Supported pause frame use: No
Supports auto-negotiation: No
Advertised link modes: Not reported
Advertised pause frame use: No
Advertised auto-negotiation: No
Speed: 40000Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 0
Transceiver: internal
Auto-negotiation: off
MDI-X: Unknown
The speed of ipoib can be reached.
Cc: Joe Jin <joe.jin@xxxxxxxxxx>
Cc: Junxiao Bi <junxiao.bi@xxxxxxxxxx>
Reviewed-by: Håkon Bugge <haakon.bugge@xxxxxxxxxx>
Reviewed-by: Yuval Shaia <yuval.shaia@xxxxxxxxxx>
Reviewed-by: Wengang Wang <wen.gang.wang@xxxxxxxxxx>
Signed-off-by: Zhu Yanjun <yanjun.zhu@xxxxxxxxxx>
---
drivers/infiniband/ulp/ipoib/ipoib_ethtool.c | 51 ++++++++++++++++++++++++++++
1 file changed, 51 insertions(+)
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c b/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c
index bac455a..8c81566 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c
@@ -155,7 +155,58 @@ static int ipoib_get_sset_count(struct net_device __always_unused *dev,
return -EOPNOTSUPP;
}
+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;
+ u32 speed;
+ int ret;
+
+ 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)
+ return ret;
+
+ switch (attr.active_speed) {
+ case IB_SPEED_DDR:
+ speed = 5000; /* in deci-Mb/sec */
+ break;
+ case IB_SPEED_QDR:
+ speed = 10000;
+ break;
+ case IB_SPEED_FDR10:
+ speed = 10000;
+ break;
+ case IB_SPEED_FDR:
+ speed = 14000;
+ break;
+ case IB_SPEED_EDR:
+ speed = 25000;
+ break;
+ case IB_SPEED_SDR:
+ default:
+ speed = 2500;
+ break;
+ }
+
+ speed *= ib_width_enum_to_int(attr.active_width);
+ if (speed < 0)
+ return -EINVAL;
+
+ ethtool_cmd_speed_set(ecmd, speed);
+ 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,
--
2.7.4
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