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Date: Mon, 17 Oct 2022 12:20:39 -0700 From: longli@...uxonhyperv.com To: "K. Y. Srinivasan" <kys@...rosoft.com>, Haiyang Zhang <haiyangz@...rosoft.com>, Stephen Hemminger <sthemmin@...rosoft.com>, Wei Liu <wei.liu@...nel.org>, Dexuan Cui <decui@...rosoft.com>, "David S. Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Jason Gunthorpe <jgg@...pe.ca>, Leon Romanovsky <leon@...nel.org>, edumazet@...gle.com, shiraz.saleem@...el.com, Ajay Sharma <sharmaajay@...rosoft.com> Cc: linux-hyperv@...r.kernel.org, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, linux-rdma@...r.kernel.org, Long Li <longli@...rosoft.com> Subject: [Patch v7 10/12] net: mana: Define data structures for allocating doorbell page from GDMA From: Long Li <longli@...rosoft.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@...rosoft.com> Signed-off-by: Long Li <longli@...rosoft.com> Acked-by: Haiyang Zhang <haiyangz@...rosoft.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); + #endif /* _GDMA_H */ -- 2.17.1
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