diff options
| author |   Vadim Pasternak <vadimp@nvidia.com> | 2022-08-21 18:20:12 +0200 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2022-08-23 17:21:59 -0700 |
| commit | 2ab4e70966a2ed5c67b7b04aba1aeb200b0ad82c (patch) | |
| tree | a49c6b4b684cf6cd42e3911823564c6c279fa730 /drivers/net/ethernet/mellanox/mlxsw/core.h | |
| parent | mlxsw: core_linecards: Separate line card init and fini flow (diff) | |
| download | linux-dev-2ab4e70966a2ed5c67b7b04aba1aeb200b0ad82c.tar.xz linux-dev-2ab4e70966a2ed5c67b7b04aba1aeb200b0ad82c.zip | |
mlxsw: core: Add registration APIs for system event handler
The purpose of system event handler is to handle system interrupts.
Such interrupts are raised to CPU from system programmable logic
devices, upon specific system wide changes, like line card activation
and deactivation.
The purpose is to create an alternative to trap mechanism, which
delivers these events to driver over PCI bus, but not available for
the driver working over I2C bus.
Mechanism is system dependent and applicable only for the systems
equipped with programmable devices with custom logic.
Add APIs for event handler registration and un-registration and API
which should be invoked from the registered callbacks when system
interrupt is raised to CPU.
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlxsw/core.h')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/core.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/core.h b/drivers/net/ethernet/mellanox/mlxsw/core.h index 02d9cc2ef0c8..c7c0b3cefd8d 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/core.h +++ b/drivers/net/ethernet/mellanox/mlxsw/core.h @@ -215,6 +215,14 @@ int mlxsw_reg_trans_write(struct mlxsw_core *mlxsw_core, mlxsw_reg_trans_cb_t *cb, unsigned long cb_priv); int mlxsw_reg_trans_bulk_wait(struct list_head *bulk_list); +typedef void mlxsw_irq_event_cb_t(struct mlxsw_core *mlxsw_core); + +int mlxsw_core_irq_event_handler_register(struct mlxsw_core *mlxsw_core, + mlxsw_irq_event_cb_t cb); +void mlxsw_core_irq_event_handler_unregister(struct mlxsw_core *mlxsw_core, + mlxsw_irq_event_cb_t cb); +void mlxsw_core_irq_event_handlers_call(struct mlxsw_core *mlxsw_core); + int mlxsw_reg_query(struct mlxsw_core *mlxsw_core, const struct mlxsw_reg_info *reg, char *payload); int mlxsw_reg_write(struct mlxsw_core *mlxsw_core, |