From: Long Li <longli@microsoft.com>
Date: Thu, 3 Nov 2022 12:16:28 -0700
Subject: net: mana: Define data structures for allocating doorbell page from
GDMA
Patch-mainline: v6.2-rc1
Git-commit: f72ececfc197e9b0bbb5595294908a950cf444fa
References: bsc#1210741 jsc#PED-4022
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>
Link: https://lore.kernel.org/r/1667502990-2559-11-git-send-email-longli@linuxonhyperv.com
Acked-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
include/net/mana/gdma.h | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
--- 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,
@@ -595,6 +599,26 @@ 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;