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| author | Majd Dibbiny | 2017-02-09 13:20:12 +0100 |
|---|---|---|
| committer | Saeed Mahameed | 2017-06-15 23:19:44 +0200 |
| commit | 8812c24d28f4972c4f2b9998bf30b1f2a1b62adf (patch) | |
| tree | 31d20563fba8998ad57027662299ccc41bc44a77 /include/linux/mlx5/mlx5_ifc.h | |
| parent | net/mlx5: Expose command polling interface (diff) | |
| download | kernel-qcow2-linux-8812c24d28f4972c4f2b9998bf30b1f2a1b62adf.tar.gz kernel-qcow2-linux-8812c24d28f4972c4f2b9998bf30b1f2a1b62adf.tar.xz kernel-qcow2-linux-8812c24d28f4972c4f2b9998bf30b1f2a1b62adf.zip | |
net/mlx5: Add fast unload support in shutdown flow
Adding a support to flush all HW resources with one FW command and
skip all the heavy unload flows of the driver on kernel shutdown.
There's no need to free all the SW context since a new fresh kernel
will be loaded afterwards.
Regarding the FW resources, they should be closed, otherwise we will
have leakage in the FW. To accelerate this flow, we execute one command
in the beginning that tells the FW that the driver isn't going to close
any of the FW resources and asks the FW to clean up everything.
Once the commands complete, it's safe to close the PCI resources and
finish the routine.
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'include/linux/mlx5/mlx5_ifc.h')
| -rw-r--r-- | include/linux/mlx5/mlx5_ifc.h | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h index 1fd144662491..e86ef880a149 100644 --- a/include/linux/mlx5/mlx5_ifc.h +++ b/include/linux/mlx5/mlx5_ifc.h @@ -801,7 +801,8 @@ struct mlx5_ifc_cmd_hca_cap_bits { u8 max_indirection[0x8]; u8 fixed_buffer_size[0x1]; u8 log_max_mrw_sz[0x7]; - u8 reserved_at_110[0x2]; + u8 force_teardown[0x1]; + u8 reserved_at_111[0x1]; u8 log_max_bsf_list_size[0x6]; u8 umr_extended_translation_offset[0x1]; u8 null_mkey[0x1]; @@ -3094,18 +3095,25 @@ struct mlx5_ifc_tsar_element_bits { u8 reserved_at_10[0x10]; }; +enum { + MLX5_TEARDOWN_HCA_OUT_FORCE_STATE_SUCCESS = 0x0, + MLX5_TEARDOWN_HCA_OUT_FORCE_STATE_FAIL = 0x1, +}; + struct mlx5_ifc_teardown_hca_out_bits { u8 status[0x8]; u8 reserved_at_8[0x18]; u8 syndrome[0x20]; - u8 reserved_at_40[0x40]; + u8 reserved_at_40[0x3f]; + + u8 force_state[0x1]; }; enum { MLX5_TEARDOWN_HCA_IN_PROFILE_GRACEFUL_CLOSE = 0x0, - MLX5_TEARDOWN_HCA_IN_PROFILE_PANIC_CLOSE = 0x1, + MLX5_TEARDOWN_HCA_IN_PROFILE_FORCE_CLOSE = 0x1, }; struct mlx5_ifc_teardown_hca_in_bits { |