net/mlx4: restore Rx offloads

[dpdk.git] / drivers / net / mlx4 / mlx4_prm.h

diff --git a/drivers/net/mlx4/mlx4_prm.h b/drivers/net/mlx4/mlx4_prm.h
index df5a6b4..3a77502 100644 (file)
--- a/drivers/net/mlx4/mlx4_prm.h
+++ b/drivers/net/mlx4/mlx4_prm.h
@@ -70,6 +70,14 @@
 #define MLX4_SIZE_TO_TXBBS(size) \
        (RTE_ALIGN((size), (MLX4_TXBB_SIZE)) >> (MLX4_TXBB_SHIFT))
 
+/* CQE checksum flags. */
+enum {
+       MLX4_CQE_L2_TUNNEL_IPV4 = (int)(1u << 25),
+       MLX4_CQE_L2_TUNNEL_L4_CSUM = (int)(1u << 26),
+       MLX4_CQE_L2_TUNNEL = (int)(1u << 27),
+       MLX4_CQE_L2_TUNNEL_IPOK = (int)(1u << 31),
+};
+
 /* Send queue information. */
 struct mlx4_sq {
        uint8_t *buf; /**< SQ buffer. */
@@ -119,4 +127,25 @@ mlx4_get_cqe(struct mlx4_cq *cq, uint32_t index)
                                   (cq->cqe_64 << 5));
 }
 
+/**
+ * Transpose a flag in a value.
+ *
+ * @param val
+ *   Input value.
+ * @param from
+ *   Flag to retrieve from input value.
+ * @param to
+ *   Flag to set in output value.
+ *
+ * @return
+ *   Output value with transposed flag enabled if present on input.
+ */
+static inline uint64_t
+mlx4_transpose(uint64_t val, uint64_t from, uint64_t to)
+{
+       return (from >= to ?
+               (val & from) / (from / to) :
+               (val & from) * (to / from));
+}
+
 #endif /* MLX4_PRM_H_ */