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net/mlx5: Set software owner ID during init HCA

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Generate a unique 128bit identifier for each host and pass that value to
firmware in the INIT_HCA command if it reports the sw_owner_id
capability. Each device bound to the mlx5_core driver will have the same
software owner ID.

In subsequent patches mlx5_core devices will be bound via a new VPort
command so that they can operate together under a single InfiniBand
device. Only devices that have the same software owner ID can be bound,
to prevent traffic intended for one host arriving at another.

The INIT_HCA command length was expanded by 128 bits. The command
length is provided as an input FW commands. Older FW does not have a
problem receiving this command in the new longer form.

Signed-off-by: Daniel Jurgens <danielj@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Daniel Jurgens
2018-01-04 17:25:32 +02:00
committed by Jason Gunthorpe
parent 734dc065fc
commit 8737f818ca
5 changed files with 24 additions and 4 deletions
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5
include/linux/mlx5/mlx5_ifc.h
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@@ -1066,7 +1066,9 @@ struct mlx5_ifc_cmd_hca_cap_bits {
u8 reserved_at_5f8[0x3];
u8 log_max_xrq[0x5];
u8 reserved_at_600[0x200];
u8 reserved_at_600[0x1e];
u8 sw_owner_id;
u8 reserved_at_61f[0x1e1];
};
enum mlx5_flow_destination_type {
@@ -5531,6 +5533,7 @@ struct mlx5_ifc_init_hca_in_bits {
u8 op_mod[0x10];
u8 reserved_at_40[0x40];
u8 sw_owner_id[4][0x20];
};
struct mlx5_ifc_init2rtr_qp_out_bits {