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2023-12-08 01573e231f18eb2d99162747186f59511f56b64d

 kernel/include/uapi/rdma/qedr-abi.h
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@@ -38,6 +38,29 @@
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 #define QEDR_ABI_VERSION		(8)
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 /* user kernel communication data structures. */
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+enum qedr_alloc_ucontext_flags {
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+	QEDR_ALLOC_UCTX_EDPM_MODE	= 1 << 0,
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+	QEDR_ALLOC_UCTX_DB_REC		= 1 << 1,
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+	QEDR_SUPPORT_DPM_SIZES		= 1 << 2,
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+};
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+
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+struct qedr_alloc_ucontext_req {
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+	__u32 context_flags;
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+	__u32 reserved;
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+};
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+
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+#define QEDR_LDPM_MAX_SIZE	(8192)
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+#define QEDR_EDPM_TRANS_SIZE	(64)
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+#define QEDR_EDPM_MAX_SIZE	(ROCE_REQ_MAX_INLINE_DATA_SIZE)
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+
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+enum qedr_rdma_dpm_type {
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+	QEDR_DPM_TYPE_NONE		= 0,
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+	QEDR_DPM_TYPE_ROCE_ENHANCED	= 1 << 0,
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+	QEDR_DPM_TYPE_ROCE_LEGACY	= 1 << 1,
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+	QEDR_DPM_TYPE_IWARP_LEGACY	= 1 << 2,
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+	QEDR_DPM_TYPE_ROCE_EDPM_MODE	= 1 << 3,
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+	QEDR_DPM_SIZES_SET		= 1 << 4,
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+};
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 struct qedr_alloc_ucontext_resp {
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 	__aligned_u64 db_pa;
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@@ -50,10 +73,14 @@
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 	__u32 sges_per_recv_wr;
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 	__u32 sges_per_srq_wr;
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 	__u32 max_cqes;
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-	__u8 dpm_enabled;
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+	__u8 dpm_flags;
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 	__u8 wids_enabled;
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 	__u16 wid_count;
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-	__u32 reserved;
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+	__u16 ldpm_limit_size;
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+	__u8 edpm_trans_size;
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+	__u8 reserved;
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+	__u16 edpm_limit_size;
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+	__u8 padding[6];
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 };
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 struct qedr_alloc_pd_ureq {
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@@ -74,6 +101,7 @@
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 	__u32 db_offset;
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 	__u16 icid;
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 	__u16 reserved;
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+	__aligned_u64 db_rec_addr;
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 };
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 struct qedr_create_qp_ureq {
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@@ -109,6 +137,13 @@
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 	__u32 rq_db2_offset;
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 	__u32 reserved;
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+
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+	/* address of SQ doorbell recovery user entry */
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+	__aligned_u64 sq_db_rec_addr;
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+
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+	/* address of RQ doorbell recovery user entry */
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+	__aligned_u64 rq_db_rec_addr;
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+
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 };
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 struct qedr_create_srq_ureq {
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@@ -128,4 +163,12 @@
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 	__u32 reserved1;
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 };
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+/* doorbell recovery entry allocated and populated by userspace doorbelling
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+ * entities and mapped to kernel. Kernel uses this to register doorbell
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+ * information with doorbell drop recovery mechanism.
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+ */
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+struct qedr_user_db_rec {
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+	__aligned_u64 db_data; /* doorbell data */
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+};
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+
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 #endif /* __QEDR_USER_H__ */