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authorMarcel Apfelbaum <marcela@dev.mellanox.co.il>2011-10-03 19:04:20 +0300
committerRoland Dreier <roland@purestorage.com>2011-10-28 11:36:16 -0700
commita5e12dff757b562bbecd6a2359fdc4c43d4d97de (patch)
tree1a0a922fec52b6169a449949cd0483e46e138271 /drivers/infiniband
parent97285b78174423e5576b2e06aa45f64df009da5b (diff)
IB/mlx4: Configure extended active speeds
Set the extended active speeds based on the hardware configuration. Signed-off-by: Marcel Apfelbaum <marcela@dev.mellanox.co.il> Reviewed-by: Hal Rosenstock <hal@mellanox.com> [ Move FDR-10 handling into ib_link_query_port(). - Roland ] Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/hw/mlx4/main.c39
1 files changed, 38 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index fa643f4f4e28..4e5b654e6375 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -181,8 +181,12 @@ mlx4_ib_port_link_layer(struct ib_device *device, u8 port_num)
static int ib_link_query_port(struct ib_device *ibdev, u8 port,
struct ib_port_attr *props,
+ struct ib_smp *in_mad,
struct ib_smp *out_mad)
{
+ int ext_active_speed;
+ int err;
+
props->lid = be16_to_cpup((__be16 *) (out_mad->data + 16));
props->lmc = out_mad->data[34] & 0x7;
props->sm_lid = be16_to_cpup((__be16 *) (out_mad->data + 18));
@@ -203,6 +207,39 @@ static int ib_link_query_port(struct ib_device *ibdev, u8 port,
props->max_vl_num = out_mad->data[37] >> 4;
props->init_type_reply = out_mad->data[41] >> 4;
+ /* Check if extended speeds (EDR/FDR/...) are supported */
+ if (props->port_cap_flags & IB_PORT_EXTENDED_SPEEDS_SUP) {
+ ext_active_speed = out_mad->data[62] >> 4;
+
+ switch (ext_active_speed) {
+ case 1:
+ props->active_speed = 16; /* FDR */
+ break;
+ case 2:
+ props->active_speed = 32; /* EDR */
+ break;
+ }
+ }
+
+ /* If reported active speed is QDR, check if is FDR-10 */
+ if (props->active_speed == 4) {
+ if (to_mdev(ibdev)->dev->caps.ext_port_cap[port] &
+ MLX_EXT_PORT_CAP_FLAG_EXTENDED_PORT_INFO) {
+ init_query_mad(in_mad);
+ in_mad->attr_id = MLX4_ATTR_EXTENDED_PORT_INFO;
+ in_mad->attr_mod = cpu_to_be32(port);
+
+ err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port,
+ NULL, NULL, in_mad, out_mad);
+ if (err)
+ return err;
+
+ /* Checking LinkSpeedActive for FDR-10 */
+ if (out_mad->data[15] & 0x1)
+ props->active_speed = 8;
+ }
+ }
+
return 0;
}
@@ -274,7 +311,7 @@ static int mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
goto out;
err = mlx4_ib_port_link_layer(ibdev, port) == IB_LINK_LAYER_INFINIBAND ?
- ib_link_query_port(ibdev, port, props, out_mad) :
+ ib_link_query_port(ibdev, port, props, in_mad, out_mad) :
eth_link_query_port(ibdev, port, props, out_mad);
out: