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IB/mlx5: Expose XDR speed through MAD

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Under MAD query port, Report NDR speed when NDR is supported in the port
capability mask.

Signed-off-by: Or Har-Toov <ohartoov@nvidia.com>
Reviewed-by: Mark Zhang <markzhang@nvidia.com>
Link: https://lore.kernel.org/r/d30bdec2a66a8a2edd1d84ee61453c58cf346b43.1695204156.git.leon@kernel.org
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This commit is contained in:
Or Har-Toov 2023-09-20 13:07:41 +03:00 committed by Leon Romanovsky
parent 703289ce43
commit 561b4a3ac6
2 changed files with 15 additions and 0 deletions
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13
drivers/infiniband/hw/mlx5/mad.c
View File

@ -619,6 +619,19 @@ int mlx5_query_mad_ifc_port(struct ib_device *ibdev, u32 port,
}
}
/* Check if extended speeds 2 (XDR/...) are supported */
if (props->port_cap_flags & IB_PORT_CAP_MASK2_SUP &&
props->port_cap_flags2 & IB_PORT_EXTENDED_SPEEDS2_SUP) {
ext_active_speed = (out_mad->data[56] >> 4) & 0x6;
switch (ext_active_speed) {
case 2:
if (props->port_cap_flags2 & IB_PORT_LINK_SPEED_XDR_SUP)
props->active_speed = IB_SPEED_XDR;
break;
}
}
/* If reported active speed is QDR, check if is FDR-10 */
if (props->active_speed == 4) {
if (dev->port_caps[port - 1].ext_port_cap &

2
include/rdma/ib_mad.h
View File

@ -277,6 +277,8 @@ enum ib_port_capability_mask2_bits {
IB_PORT_LINK_WIDTH_2X_SUP = 1 << 4,
IB_PORT_LINK_SPEED_HDR_SUP = 1 << 5,
IB_PORT_LINK_SPEED_NDR_SUP = 1 << 10,
IB_PORT_EXTENDED_SPEEDS2_SUP = 1 << 11,
IB_PORT_LINK_SPEED_XDR_SUP = 1 << 12,
};
#define OPA_CLASS_PORT_INFO_PR_SUPPORT BIT(26)