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

Yunsheng Lin
2022-10-19T00:32:35Z

On 2022/10/18 3:20, longli@linuxonhyperv.com wrote:
> From: Long Li <longli@microsoft.com>
>
> 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@microsoft.com>
> Signed-off-by: Long Li <longli@microsoft.com>
> Acked-by: Haiyang Zhang <haiyangz@microsoft.com>
> ---
> 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 */
>