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);
+
#endif /* _GDMA_H */
--
2.17.1
