On 4/2/2012 2:48 PM, Bart Van Assche wrote:
The two ports are connected back-to-back to another mlx4 HCA. I
noticed this behavior change since opensm stopped working after
rebooting into 3.4-rc1.
can you add these prints and send me the output after attempting to cat
the rate file?
Or.
diff --git a/drivers/infiniband/core/sysfs.c
b/drivers/infiniband/core/sysfs.c
index 83b720e..d20e4a4 100644
--- a/drivers/infiniband/core/sysfs.c
+++ b/drivers/infiniband/core/sysfs.c
@@ -181,8 +181,13 @@ static ssize_t rate_show(struct ib_port *p,
struct port_attribute *unused,
char *speed = "";
int rate = -1; /* in deci-Gb/sec */
ssize_t ret;
+ enum rdma_link_layer ll;
ret = ib_query_port(p->ibdev, p->port_num, &attr);
+
+ ll = rdma_port_get_link_layer(p->ibdev, p->port_num);
+ printk(KERN_ERR "%s ret %d for ib_query_port dev %s port %d
link %d\n",
+ __func__, ret, p->ibdev->name, p->port_num, ll);
if (ret)
return ret;
diff --git a/drivers/infiniband/hw/mlx4/main.c
b/drivers/infiniband/hw/mlx4/main.c
index 75d3056..26b67c6 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -256,6 +256,7 @@ static int ib_link_query_port(struct ib_device
*ibdev, u8 port,
out:
kfree(in_mad);
kfree(out_mad);
+ printk(KERN_ERR "%s active_speed %d\n", __func__,
props->active_speed);
return err;
}
@@ -312,6 +313,7 @@ out_unlock:
spin_unlock(&iboe->lock);
out:
mlx4_free_cmd_mailbox(mdev->dev, mailbox);
+ printk(KERN_ERR "%s active_speed %d\n", __func__,
props->active_speed);
return err;
}
--
To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
