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IB/core: Add link layer type information to sysfs

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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>
This commit is contained in:
Eli Cohen 2010-10-22 14:32:05 +02:00 committed by Roland Dreier
parent 4c3eb3ca13
commit 8ad330a002
1 changed files with 15 additions and 0 deletions
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15
drivers/infiniband/core/sysfs.c
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@ -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
};