diff options
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/core/sysfs.c | 9 | ||||
| -rw-r--r-- | drivers/infiniband/hw/mlx4/main.c | 5 |
2 files changed, 10 insertions, 4 deletions
diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c index 83b720ef6c34..246fdc151652 100644 --- a/drivers/infiniband/core/sysfs.c +++ b/drivers/infiniband/core/sysfs.c @@ -179,7 +179,7 @@ static ssize_t rate_show(struct ib_port *p, struct port_attribute *unused, { struct ib_port_attr attr; char *speed = ""; - int rate = -1; /* in deci-Gb/sec */ + int rate; /* in deci-Gb/sec */ ssize_t ret; ret = ib_query_port(p->ibdev, p->port_num, &attr); @@ -187,9 +187,6 @@ static ssize_t rate_show(struct ib_port *p, struct port_attribute *unused, return ret; switch (attr.active_speed) { - case IB_SPEED_SDR: - rate = 25; - break; case IB_SPEED_DDR: speed = " DDR"; rate = 50; @@ -210,6 +207,10 @@ static ssize_t rate_show(struct ib_port *p, struct port_attribute *unused, speed = " EDR"; rate = 250; break; + case IB_SPEED_SDR: + default: /* default to SDR for invalid rates */ + rate = 25; + break; } rate *= ib_width_enum_to_int(attr.active_width); diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index 75d305629300..669673e81439 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -253,6 +253,11 @@ static int ib_link_query_port(struct ib_device *ibdev, u8 port, if (out_mad->data[15] & 0x1) props->active_speed = IB_SPEED_FDR10; } + + /* Avoid wrong speed value returned by FW if the IB link is down. */ + if (props->state == IB_PORT_DOWN) + props->active_speed = IB_SPEED_SDR; + out: kfree(in_mad); kfree(out_mad); |