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author | Max Gurtovoy <maxg@mellanox.com> | 2019-07-01 21:14:01 +0300 |
---|---|---|
committer | Leon Romanovsky <leonro@mellanox.com> | 2019-07-07 10:25:17 +0300 |
commit | 1dd7382b1bb608e7ccae3672621eaceca355ae8b (patch) | |
tree | c5a7f8071e60c9fc810b79368445f88980451812 | |
parent | f8efee08dd9d41ab71010e9b16c9ead51753b7d6 (diff) | |
download | linux-1dd7382b1bb608e7ccae3672621eaceca355ae8b.tar.bz2 |
net/mlx5: Introduce VHCA tunnel device capability
When using the device emulation feature (introduced in Bluefield-1 SOC),
a privileged function (the device emulation manager) will be able to
create a channel to execute commands on behalf of the emulated function.
This channel will be a general object of type VHCA_TUNNEL that will have
a unique ID for each emulated function. This ID will be passed in each
cmd that will be issued by the emulation SW in a well known offset in
the command header.
This channel is needed since the emulated function doesn't have a normal
command interface to the HCA HW, but some basic configuration for that
function is needed (e.g. initialize and enable the HCA). For that matter,
a specific command-set was defined and only those commands will be issued
by the HCA.
Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
-rw-r--r-- | include/linux/mlx5/mlx5_ifc.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h index 06881b79167e..ba60bd17a92a 100644 --- a/include/linux/mlx5/mlx5_ifc.h +++ b/include/linux/mlx5/mlx5_ifc.h @@ -1390,7 +1390,9 @@ struct mlx5_ifc_cmd_hca_cap_bits { u8 reserved_at_6c8[0x28]; u8 sf_base_id[0x10]; - u8 reserved_at_700[0x100]; + u8 reserved_at_700[0x80]; + u8 vhca_tunnel_commands[0x40]; + u8 reserved_at_7c0[0x40]; }; enum mlx5_flow_destination_type { @@ -9694,7 +9696,7 @@ struct mlx5_ifc_general_obj_in_cmd_hdr_bits { u8 opcode[0x10]; u8 uid[0x10]; - u8 reserved_at_20[0x10]; + u8 vhca_tunnel_id[0x10]; u8 obj_type[0x10]; u8 obj_id[0x20]; |