xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

net/mlx5: Set software owner ID during init HCA

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

5
include/linux/mlx5/device.h
View File

@@ -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)) = \