#include <stdio.h>
#include <rte_pci.h>
+#include <rte_atomic.h>
#include <rte_log.h>
+#include "mlx5_prm.h"
+
/*
* Helper macros to work around __VA_ARGS__ limitations in a C99 compliant
PCI_DEVICE_ID_MELLANOX_CONNECTX6DXVF = 0x101e,
};
+/* CQE status. */
+enum mlx5_cqe_status {
+ MLX5_CQE_STATUS_SW_OWN = -1,
+ MLX5_CQE_STATUS_HW_OWN = -2,
+ MLX5_CQE_STATUS_ERR = -3,
+};
+
+/**
+ * Check whether CQE is valid.
+ *
+ * @param cqe
+ * Pointer to CQE.
+ * @param cqes_n
+ * Size of completion queue.
+ * @param ci
+ * Consumer index.
+ *
+ * @return
+ * The CQE status.
+ */
+static __rte_always_inline enum mlx5_cqe_status
+check_cqe(volatile struct mlx5_cqe *cqe, const uint16_t cqes_n,
+ const uint16_t ci)
+{
+ const uint16_t idx = ci & cqes_n;
+ const uint8_t op_own = cqe->op_own;
+ const uint8_t op_owner = MLX5_CQE_OWNER(op_own);
+ const uint8_t op_code = MLX5_CQE_OPCODE(op_own);
+
+ if (unlikely((op_owner != (!!(idx))) || (op_code == MLX5_CQE_INVALID)))
+ return MLX5_CQE_STATUS_HW_OWN;
+ rte_cio_rmb();
+ if (unlikely(op_code == MLX5_CQE_RESP_ERR ||
+ op_code == MLX5_CQE_REQ_ERR))
+ return MLX5_CQE_STATUS_ERR;
+ return MLX5_CQE_STATUS_SW_OWN;
+}
+
int mlx5_dev_to_pci_addr(const char *dev_path, struct rte_pci_addr *pci_addr);
#endif /* RTE_PMD_MLX5_COMMON_H_ */