[PATCH] accel/qaic: Add ipc_router channel

[Jacek Lawrynowicz]

Reviewed-by: Jacek Lawrynowicz <jacek.lawrynowicz at linux.intel.com>

On 10/4/2024 6:40 PM, Jeffrey Hugo wrote:
> The ipc_router channel allows AF_QIPCRTR clients and services to
> communicate with the AIC100 device. The ipc_router MHI transport layer
> expects the channel to be named exactly "IPCR".
> 
> Reviewed-by: Carl Vanderlip <quic_carlv at quicinc.com>
> Signed-off-by: Jeffrey Hugo <quic_jhugo at quicinc.com>
> ---
>  Documentation/accel/qaic/aic100.rst |  2 ++
>  drivers/accel/qaic/mhi_controller.c | 32 +++++++++++++++++++++++++++++
>  2 files changed, 34 insertions(+)
> 
> diff --git a/Documentation/accel/qaic/aic100.rst b/Documentation/accel/qaic/aic100.rst
> index 590dae77ea12..273da6192fb3 100644
> --- a/Documentation/accel/qaic/aic100.rst
> +++ b/Documentation/accel/qaic/aic100.rst
> @@ -229,6 +229,8 @@ of the defined channels, and their uses.
>  | _PERIODIC      |         |          | timestamps in the device side logs with|
>  |                |         |          | the host time source.                  |
>  +----------------+---------+----------+----------------------------------------+
> +| IPCR           | 24 & 25 | AMSS     | AF_QIPCRTR clients and servers.        |
> ++----------------+---------+----------+----------------------------------------+
>  
>  DMA Bridge
>  ==========
> diff --git a/drivers/accel/qaic/mhi_controller.c b/drivers/accel/qaic/mhi_controller.c
> index ada9b1eb0787..8ab82e78dd94 100644
> --- a/drivers/accel/qaic/mhi_controller.c
> +++ b/drivers/accel/qaic/mhi_controller.c
> @@ -405,6 +405,38 @@ static const struct mhi_channel_config aic100_channels[] = {
>  		.auto_queue = false,
>  		.wake_capable = false,
>  	},
> +	{
> +		.name = "IPCR",
> +		.num = 24,
> +		.num_elements = 32,
> +		.local_elements = 0,
> +		.event_ring = 0,
> +		.dir = DMA_TO_DEVICE,
> +		.ee_mask = MHI_CH_EE_AMSS,
> +		.pollcfg = 0,
> +		.doorbell = MHI_DB_BRST_DISABLE,
> +		.lpm_notify = false,
> +		.offload_channel = false,
> +		.doorbell_mode_switch = false,
> +		.auto_queue = false,
> +		.wake_capable = false,
> +	},
> +	{
> +		.name = "IPCR",
> +		.num = 25,
> +		.num_elements = 32,
> +		.local_elements = 0,
> +		.event_ring = 0,
> +		.dir = DMA_FROM_DEVICE,
> +		.ee_mask = MHI_CH_EE_AMSS,
> +		.pollcfg = 0,
> +		.doorbell = MHI_DB_BRST_DISABLE,
> +		.lpm_notify = false,
> +		.offload_channel = false,
> +		.doorbell_mode_switch = false,
> +		.auto_queue = true,
> +		.wake_capable = false,
> +	},
>  };
>  
>  static struct mhi_event_config aic100_events[] = {