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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>
This commit is contained in:
Marcel Apfelbaum 2011-10-03 19:04:20 +03:00 committed by Roland Dreier
parent 97285b7817
commit a5e12dff75
1 changed files with 38 additions and 1 deletions
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39
drivers/infiniband/hw/mlx4/main.c
View File

@ -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: