[dpdk-dev] [PATCH v1 20/72] common/mlx5: add DevX alloc PD command

[Ophir Munk]

From: Tal Shnaiderman <talshn at nvidia.com>

Add a new DevX API mlx5_devx_cmd_alloc_pd() that creates a new protection
domain (PD).

Signed-off-by: Tal Shnaiderman <talshn at nvidia.com>
Acked-by: Matan Azrad <matan at nvidia.com>
---
 drivers/common/mlx5/mlx5_devx_cmds.c            | 35 ++++++++++++++++++++++++
 drivers/common/mlx5/mlx5_devx_cmds.h            |  2 ++
 drivers/common/mlx5/mlx5_prm.h                  | 36 +++++++++++++++++++++++++
 drivers/common/mlx5/rte_common_mlx5_exports.def |  1 +
 drivers/common/mlx5/version.map                 |  1 +
 5 files changed, 75 insertions(+)

diff --git a/drivers/common/mlx5/mlx5_devx_cmds.c b/drivers/common/mlx5/mlx5_devx_cmds.c
index ee1baf8..b9d11c3 100644
--- a/drivers/common/mlx5/mlx5_devx_cmds.c
+++ b/drivers/common/mlx5/mlx5_devx_cmds.c
@@ -2002,3 +2002,38 @@ mlx5_devx_cmd_query_virtio_q_counters(struct mlx5_devx_obj *couners_obj,
 					invalid_buffer);
 	return ret;
 }
+
+/*
+ * Create PD using DevX API.
+ *
+ * @param[in] ctx
+ *   Context returned from mlx5 open_device() glue function.
+ *
+ * @return
+ *   The DevX object created, NULL otherwise and rte_errno is set.
+ */
+struct mlx5_devx_obj *
+mlx5_devx_cmd_alloc_pd(void *ctx)
+{
+	struct mlx5_devx_obj *ppd =
+		mlx5_malloc(MLX5_MEM_ZERO, sizeof(*ppd), 0, SOCKET_ID_ANY);
+	u32 in[MLX5_ST_SZ_DW(alloc_pd_in)] = {0};
+	u32 out[MLX5_ST_SZ_DW(alloc_pd_out)] = {0};
+
+	if (!ppd) {
+		DRV_LOG(ERR, "Failed to allocate PD data.");
+		rte_errno = ENOMEM;
+		return NULL;
+	}
+	MLX5_SET(alloc_pd_in, in, opcode, MLX5_CMD_OP_ALLOC_PD);
+	ppd->obj = mlx5_glue->devx_obj_create(ctx, in, sizeof(in),
+				out, sizeof(out));
+	if (!ppd->obj) {
+		mlx5_free(ppd);
+		DRV_LOG(ERR, "Failed to allocate PD Obj using DevX.");
+		rte_errno = errno;
+		return NULL;
+	}
+	ppd->id = MLX5_GET(alloc_pd_out, out, pd);
+	return ppd;
+}
diff --git a/drivers/common/mlx5/mlx5_devx_cmds.h b/drivers/common/mlx5/mlx5_devx_cmds.h
index b654e42..f3b2a7e 100644
--- a/drivers/common/mlx5/mlx5_devx_cmds.h
+++ b/drivers/common/mlx5/mlx5_devx_cmds.h
@@ -492,4 +492,6 @@ struct mlx5_devx_obj *mlx5_devx_cmd_create_virtio_q_counters(void *ctx);
 __rte_internal
 int mlx5_devx_cmd_query_virtio_q_counters(struct mlx5_devx_obj *couners_obj,
 				  struct mlx5_devx_virtio_q_couners_attr *attr);
+__rte_internal
+struct mlx5_devx_obj *mlx5_devx_cmd_alloc_pd(void *ctx);
 #endif /* RTE_PMD_MLX5_DEVX_CMDS_H_ */
diff --git a/drivers/common/mlx5/mlx5_prm.h b/drivers/common/mlx5/mlx5_prm.h
index 8b9b694..818f8c4 100644
--- a/drivers/common/mlx5/mlx5_prm.h
+++ b/drivers/common/mlx5/mlx5_prm.h
@@ -828,6 +828,8 @@ enum {
 	MLX5_CMD_OP_SUSPEND_QP = 0x50F,
 	MLX5_CMD_OP_RESUME_QP = 0x510,
 	MLX5_CMD_OP_QUERY_NIC_VPORT_CONTEXT = 0x754,
+	MLX5_CMD_OP_ALLOC_PD = 0x800,
+	MLX5_CMD_OP_DEALLOC_PD = 0x801,
 	MLX5_CMD_OP_ACCESS_REGISTER = 0x805,
 	MLX5_CMD_OP_ALLOC_TRANSPORT_DOMAIN = 0x816,
 	MLX5_CMD_OP_CREATE_TIR = 0x900,
@@ -2662,6 +2664,40 @@ struct mlx5_ifc_init2init_qp_in_bits {
 	u8 reserved_at_800[0x80];
 };
 
+struct mlx5_ifc_dealloc_pd_out_bits {
+	u8 status[0x8];
+	u8 reserved_0[0x18];
+	u8 syndrome[0x20];
+	u8 reserved_1[0x40];
+};
+
+struct mlx5_ifc_dealloc_pd_in_bits {
+	u8 opcode[0x10];
+	u8 reserved_0[0x10];
+	u8 reserved_1[0x10];
+	u8 op_mod[0x10];
+	u8 reserved_2[0x8];
+	u8 pd[0x18];
+	u8 reserved_3[0x20];
+};
+
+struct mlx5_ifc_alloc_pd_out_bits {
+	u8 status[0x8];
+	u8 reserved_0[0x18];
+	u8 syndrome[0x20];
+	u8 reserved_1[0x8];
+	u8 pd[0x18];
+	u8 reserved_2[0x20];
+};
+
+struct mlx5_ifc_alloc_pd_in_bits {
+	u8 opcode[0x10];
+	u8 reserved_0[0x10];
+	u8 reserved_1[0x10];
+	u8 op_mod[0x10];
+	u8 reserved_2[0x40];
+};
+
 #ifdef PEDANTIC
 #pragma GCC diagnostic ignored "-Wpedantic"
 #endif
diff --git a/drivers/common/mlx5/rte_common_mlx5_exports.def b/drivers/common/mlx5/rte_common_mlx5_exports.def
index 8d1f373..650f656 100644
--- a/drivers/common/mlx5/rte_common_mlx5_exports.def
+++ b/drivers/common/mlx5/rte_common_mlx5_exports.def
@@ -5,6 +5,7 @@ EXPORTS
 
 	mlx5_create_mr_ext
 
+	mlx5_devx_cmd_alloc_pd
 	mlx5_devx_cmd_create_cq
 	mlx5_devx_cmd_create_flex_parser
 	mlx5_devx_cmd_create_qp
diff --git a/drivers/common/mlx5/version.map b/drivers/common/mlx5/version.map
index 884001c..bd1e965 100644
--- a/drivers/common/mlx5/version.map
+++ b/drivers/common/mlx5/version.map
@@ -10,6 +10,7 @@ INTERNAL {
 
 	mlx5_dev_to_pci_addr;
 
+	mlx5_devx_cmd_alloc_pd;
 	mlx5_devx_cmd_create_cq;
 	mlx5_devx_cmd_create_flex_parser;
 	mlx5_devx_cmd_create_qp;
-- 
2.8.4