Re: [Patch v7 10/12] net: mana: Define data structures for allocating doorbell page from GDMA

[Yunsheng Lin]

On 2022/10/18 3:20, longli@xxxxxxxxxxxxxxxxx wrote:
> From: Long Li <longli@xxxxxxxxxxxxx>
> 
> The RDMA device needs to allocate doorbell pages for each user context.
> Define the GDMA data structures for use by the RDMA driver.
> 
> Reviewed-by: Dexuan Cui <decui@xxxxxxxxxxxxx>
> Signed-off-by: Long Li <longli@xxxxxxxxxxxxx>
> Acked-by: Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>
> ---
> Change log:
> v4: use EXPORT_SYMBOL_NS
> v7: move mana_gd_allocate_doorbell_page() and mana_gd_destroy_doorbell_page() to the RDMA driver
> 
>  include/net/mana/gdma.h | 25 +++++++++++++++++++++++++
>  1 file changed, 25 insertions(+)
> 
> diff --git a/include/net/mana/gdma.h b/include/net/mana/gdma.h
> index a9b7930dfbf8..bc060b6fa54c 100644
> --- a/include/net/mana/gdma.h
> +++ b/include/net/mana/gdma.h
> @@ -24,11 +24,15 @@ enum gdma_request_type {
>  	GDMA_GENERATE_TEST_EQE		= 10,
>  	GDMA_CREATE_QUEUE		= 12,
>  	GDMA_DISABLE_QUEUE		= 13,
> +	GDMA_ALLOCATE_RESOURCE_RANGE	= 22,
> +	GDMA_DESTROY_RESOURCE_RANGE	= 24,
>  	GDMA_CREATE_DMA_REGION		= 25,
>  	GDMA_DMA_REGION_ADD_PAGES	= 26,
>  	GDMA_DESTROY_DMA_REGION		= 27,
>  };
>  
> +#define GDMA_RESOURCE_DOORBELL_PAGE	27
> +
>  enum gdma_queue_type {
>  	GDMA_INVALID_QUEUE,
>  	GDMA_SQ,
> @@ -587,6 +591,26 @@ struct gdma_register_device_resp {
>  	u32 db_id;
>  }; /* HW DATA */
>  
> +struct gdma_allocate_resource_range_req {
> +	struct gdma_req_hdr hdr;
> +	u32 resource_type;
> +	u32 num_resources;
> +	u32 alignment;
> +	u32 allocated_resources;
> +};
> +
> +struct gdma_allocate_resource_range_resp {
> +	struct gdma_resp_hdr hdr;
> +	u32 allocated_resources;
> +};
> +
> +struct gdma_destroy_resource_range_req {
> +	struct gdma_req_hdr hdr;
> +	u32 resource_type;
> +	u32 num_resources;
> +	u32 allocated_resources;
> +};
> +
>  /* GDMA_CREATE_QUEUE */
>  struct gdma_create_queue_req {
>  	struct gdma_req_hdr hdr;
> @@ -695,4 +719,5 @@ void mana_gd_free_memory(struct gdma_mem_info *gmi);
>  
>  int mana_gd_send_request(struct gdma_context *gc, u32 req_len, const void *req,
>  			 u32 resp_len, void *resp);
> +

Unrelated change.

>  #endif /* _GDMA_H */
>