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authorEli Cohen <eli@mellanox.co.il>2010-10-22 14:32:05 +0200
committerRoland Dreier <rolandd@cisco.com>2010-10-25 10:20:39 -0700
commit8ad330a002ffbc422f32a77398666832f0df8a3d (patch)
treef2748218f63365a60d39f843dd21a052cba70a7d /drivers/infiniband/core
parent4c3eb3ca13966508bcb64f39dcdef48be22f1731 (diff)
downloadlinux-8ad330a002ffbc422f32a77398666832f0df8a3d.tar.bz2
IB/core: Add link layer type information to sysfs
Since an IB transport port may use either IB or Ethernet as its link layer, add the file /sys/class/infiniband/<device>/ports/<port_num>/link_layer to show the link layer for the port. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/core')
-rw-r--r--drivers/infiniband/core/sysfs.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c
index 3627300e2a10..9ab5df72df7b 100644
--- a/drivers/infiniband/core/sysfs.c
+++ b/drivers/infiniband/core/sysfs.c
@@ -222,6 +222,19 @@ static ssize_t phys_state_show(struct ib_port *p, struct port_attribute *unused,
}
}
+static ssize_t link_layer_show(struct ib_port *p, struct port_attribute *unused,
+ char *buf)
+{
+ switch (rdma_port_get_link_layer(p->ibdev, p->port_num)) {
+ case IB_LINK_LAYER_INFINIBAND:
+ return sprintf(buf, "%s\n", "InfiniBand");
+ case IB_LINK_LAYER_ETHERNET:
+ return sprintf(buf, "%s\n", "Ethernet");
+ default:
+ return sprintf(buf, "%s\n", "Unknown");
+ }
+}
+
static PORT_ATTR_RO(state);
static PORT_ATTR_RO(lid);
static PORT_ATTR_RO(lid_mask_count);
@@ -230,6 +243,7 @@ static PORT_ATTR_RO(sm_sl);
static PORT_ATTR_RO(cap_mask);
static PORT_ATTR_RO(rate);
static PORT_ATTR_RO(phys_state);
+static PORT_ATTR_RO(link_layer);
static struct attribute *port_default_attrs[] = {
&port_attr_state.attr,
@@ -240,6 +254,7 @@ static struct attribute *port_default_attrs[] = {
&port_attr_cap_mask.attr,
&port_attr_rate.attr,
&port_attr_phys_state.attr,
+ &port_attr_link_layer.attr,
NULL
};