[dpdk-dev] [PATCH v2 12/28] net/mlx5: create advanced RxQ table using new API

[Matan Azrad <matan@mellanox.com>]

From: Dekel Peled <dekelp@mellanox.com>

Implement function mlx5_devx_cmd_create_rqt() to create RQT
object using DevX API.
Add related structs in mlx5.h and mlx5_prm.h.

Signed-off-by: Dekel Peled <dekelp@mellanox.com>
Acked-by: Matan Azrad <matan@mellanox.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
---
 drivers/net/mlx5/mlx5.h           |  9 +++++++
 drivers/net/mlx5/mlx5_devx_cmds.c | 54 +++++++++++++++++++++++++++++++++++++++
 drivers/net/mlx5/mlx5_prm.h       | 40 +++++++++++++++++++++++++++++
 3 files changed, 103 insertions(+)

diff --git a/drivers/net/mlx5/mlx5.h b/drivers/net/mlx5/mlx5.h
index 422a70f..8aa5240 100644
--- a/drivers/net/mlx5/mlx5.h
+++ b/drivers/net/mlx5/mlx5.h
@@ -344,6 +344,13 @@ struct mlx5_devx_tir_attr {
 	struct mlx5_rx_hash_field_select rx_hash_field_selector_inner;
 };
 
+/* RQT attributes structure, used by RQT operations. */
+struct mlx5_devx_rqt_attr {
+	uint32_t rqt_max_size:16;
+	uint32_t rqt_actual_size:16;
+	uint32_t rq_list[];
+};
+
 /**
  * Type of object being allocated.
  */
@@ -831,5 +838,7 @@ int mlx5_devx_cmd_modify_rq(struct mlx5_devx_obj *rq,
 			    struct mlx5_devx_modify_rq_attr *rq_attr);
 struct mlx5_devx_obj *mlx5_devx_cmd_create_tir(struct ibv_context *ctx,
 					struct mlx5_devx_tir_attr *tir_attr);
+struct mlx5_devx_obj *mlx5_devx_cmd_create_rqt(struct ibv_context *ctx,
+					struct mlx5_devx_rqt_attr *rqt_attr);
 
 #endif /* RTE_PMD_MLX5_H_ */
diff --git a/drivers/net/mlx5/mlx5_devx_cmds.c b/drivers/net/mlx5/mlx5_devx_cmds.c
index 5faa2a0..acfe1de 100644
--- a/drivers/net/mlx5/mlx5_devx_cmds.c
+++ b/drivers/net/mlx5/mlx5_devx_cmds.c
@@ -648,3 +648,57 @@ struct mlx5_devx_obj *
 	tir->id = MLX5_GET(create_tir_out, out, tirn);
 	return tir;
 }
+
+/**
+ * Create RQT using DevX API.
+ *
+ * @param[in] ctx
+ *   ibv_context returned from mlx5dv_open_device.
+ * @param [in] rqt_attr
+ *   Pointer to RQT attributes structure.
+ *
+ * @return
+ *   The DevX object created, NULL otherwise and rte_errno is set.
+ */
+struct mlx5_devx_obj *
+mlx5_devx_cmd_create_rqt(struct ibv_context *ctx,
+			 struct mlx5_devx_rqt_attr *rqt_attr)
+{
+	uint32_t *in = NULL;
+	uint32_t inlen = MLX5_ST_SZ_BYTES(create_rqt_in) +
+			 rqt_attr->rqt_actual_size * sizeof(uint32_t);
+	uint32_t out[MLX5_ST_SZ_DW(create_rqt_out)] = {0};
+	void *rqt_ctx;
+	struct mlx5_devx_obj *rqt = NULL;
+	int i;
+
+	in = rte_calloc(__func__, 1, inlen, 0);
+	if (!in) {
+		DRV_LOG(ERR, "Failed to allocate RQT IN data");
+		rte_errno = ENOMEM;
+		return NULL;
+	}
+	rqt = rte_calloc(__func__, 1, sizeof(*rqt), 0);
+	if (!rqt) {
+		DRV_LOG(ERR, "Failed to allocate RQT data");
+		rte_errno = ENOMEM;
+		rte_free(in);
+		return NULL;
+	}
+	MLX5_SET(create_rqt_in, in, opcode, MLX5_CMD_OP_CREATE_RQT);
+	rqt_ctx = MLX5_ADDR_OF(create_rqt_in, in, rqt_context);
+	MLX5_SET(rqtc, rqt_ctx, rqt_max_size, rqt_attr->rqt_max_size);
+	MLX5_SET(rqtc, rqt_ctx, rqt_actual_size, rqt_attr->rqt_actual_size);
+	for (i = 0; i < rqt_attr->rqt_actual_size; i++)
+		MLX5_SET(rqtc, rqt_ctx, rq_num[i], rqt_attr->rq_list[i]);
+	rqt->obj = mlx5_glue->devx_obj_create(ctx, in, inlen, out, sizeof(out));
+	rte_free(in);
+	if (!rqt->obj) {
+		DRV_LOG(ERR, "Failed to create RQT using DevX");
+		rte_errno = errno;
+		rte_free(rqt);
+		return NULL;
+	}
+	rqt->id = MLX5_GET(create_rqt_out, out, rqtn);
+	return rqt;
+}
diff --git a/drivers/net/mlx5/mlx5_prm.h b/drivers/net/mlx5/mlx5_prm.h
index 970dee0..b0e281f 100644
--- a/drivers/net/mlx5/mlx5_prm.h
+++ b/drivers/net/mlx5/mlx5_prm.h
@@ -631,6 +631,7 @@ enum {
 	MLX5_CMD_OP_CREATE_RQ = 0x908,
 	MLX5_CMD_OP_MODIFY_RQ = 0x909,
 	MLX5_CMD_OP_QUERY_TIS = 0x915,
+	MLX5_CMD_OP_CREATE_RQT = 0x916,
 	MLX5_CMD_OP_ALLOC_FLOW_COUNTER = 0x939,
 	MLX5_CMD_OP_QUERY_FLOW_COUNTER = 0x93b,
 };
@@ -1488,6 +1489,45 @@ struct mlx5_ifc_create_tir_in_bits {
 	struct mlx5_ifc_tirc_bits ctx;
 };
 
+struct mlx5_ifc_rq_num_bits {
+	u8 reserved_at_0[0x8];
+	u8 rq_num[0x18];
+};
+
+struct mlx5_ifc_rqtc_bits {
+	u8 reserved_at_0[0xa0];
+	u8 reserved_at_a0[0x10];
+	u8 rqt_max_size[0x10];
+	u8 reserved_at_c0[0x10];
+	u8 rqt_actual_size[0x10];
+	u8 reserved_at_e0[0x6a0];
+	struct mlx5_ifc_rq_num_bits rq_num[];
+};
+
+struct mlx5_ifc_create_rqt_out_bits {
+	u8 status[0x8];
+	u8 reserved_at_8[0x18];
+	u8 syndrome[0x20];
+	u8 reserved_at_40[0x8];
+	u8 rqtn[0x18];
+	u8 reserved_at_60[0x20];
+};
+
+#ifdef PEDANTIC
+#pragma GCC diagnostic ignored "-Wpedantic"
+#endif
+struct mlx5_ifc_create_rqt_in_bits {
+	u8 opcode[0x10];
+	u8 uid[0x10];
+	u8 reserved_at_20[0x10];
+	u8 op_mod[0x10];
+	u8 reserved_at_40[0xc0];
+	struct mlx5_ifc_rqtc_bits rqt_context;
+};
+#ifdef PEDANTIC
+#pragma GCC diagnostic error "-Wpedantic"
+#endif
+
 /* CQE format mask. */
 #define MLX5E_CQE_FORMAT_MASK 0xc
 
-- 
1.8.3.1