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author | Daniel Jurgens | 2018-01-04 16:25:32 +0100 |
---|---|---|
committer | Jason Gunthorpe | 2018-01-08 19:42:20 +0100 |
commit | 8737f818ca3b8ef7c9945525af7df128e1be4575 (patch) | |
tree | 95d4659f67cdf578b541c911f51c0a123cd6bc08 /include/linux/mlx5/device.h | |
parent | net/mlx5: Fix race for multiple RoCE enable (diff) | |
download | kernel-qcow2-linux-8737f818ca3b8ef7c9945525af7df128e1be4575.tar.gz kernel-qcow2-linux-8737f818ca3b8ef7c9945525af7df128e1be4575.tar.xz kernel-qcow2-linux-8737f818ca3b8ef7c9945525af7df128e1be4575.zip |
net/mlx5: Set software owner ID during init HCA
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>
Diffstat (limited to 'include/linux/mlx5/device.h')
-rw-r--r-- | include/linux/mlx5/device.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h index 9aee835b7393..e5258ee4e38b 100644 --- a/include/linux/mlx5/device.h +++ b/include/linux/mlx5/device.h @@ -79,6 +79,11 @@ << __mlx5_dw_bit_off(typ, fld))); \ } while (0) +#define MLX5_ARRAY_SET(typ, p, fld, idx, v) do { \ + BUILD_BUG_ON(__mlx5_bit_off(typ, fld) % 32); \ + MLX5_SET(typ, p, fld[idx], v); \ +} while (0) + #define MLX5_SET_TO_ONES(typ, p, fld) do { \ BUILD_BUG_ON(__mlx5_st_sz_bits(typ) % 32); \ *((__be32 *)(p) + __mlx5_dw_off(typ, fld)) = \ |