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authorYongseok Koh <yskoh@mellanox.com>2017-10-09 11:46:56 -0700
committerFerruh Yigit <ferruh.yigit@intel.com>2017-10-12 01:36:58 +0100
commit5bfc9fc112dd3c0f239af2488a7d8801f44ed3a3 (patch)
treef7a55f80ae0587983f3f5f56e5391a9d62f01cf5 /drivers/net/mlx5/mlx5_rxtx_vec.h
parentf0d2114f910218bae1431430027ddacc87f126f3 (diff)
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net/mlx5: use static assert for compile-time sanity checks
Replace compile-time sanity check with static_assert() as c11 standard has been set. Add mlx5_rxtx_vec.h and move the sanity checks to the file Signed-off-by: Yongseok Koh <yskoh@mellanox.com> Acked-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
Diffstat (limited to 'drivers/net/mlx5/mlx5_rxtx_vec.h')
-rw-r--r--drivers/net/mlx5/mlx5_rxtx_vec.h87
1 files changed, 87 insertions, 0 deletions
diff --git a/drivers/net/mlx5/mlx5_rxtx_vec.h b/drivers/net/mlx5/mlx5_rxtx_vec.h
new file mode 100644
index 0000000..c41a9b9
--- /dev/null
+++ b/drivers/net/mlx5/mlx5_rxtx_vec.h
@@ -0,0 +1,87 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright 2017 6WIND S.A.
+ * Copyright 2017 Mellanox.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of 6WIND S.A. nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef RTE_PMD_MLX5_RXTX_VEC_H_
+#define RTE_PMD_MLX5_RXTX_VEC_H_
+
+#include <rte_common.h>
+#include <rte_mbuf.h>
+
+#include "mlx5_autoconf.h"
+#include "mlx5_prm.h"
+
+/*
+ * Compile time sanity check for vectorized functions.
+ */
+
+#define S_ASSERT_RTE_MBUF(s) \
+ static_assert(s, "A field of struct rte_mbuf is changed")
+#define S_ASSERT_MLX5_CQE(s) \
+ static_assert(s, "A field of struct mlx5_cqe is changed")
+
+/* rxq_cq_decompress_v() */
+S_ASSERT_RTE_MBUF(offsetof(struct rte_mbuf, pkt_len) ==
+ offsetof(struct rte_mbuf, rx_descriptor_fields1) + 4);
+S_ASSERT_RTE_MBUF(offsetof(struct rte_mbuf, data_len) ==
+ offsetof(struct rte_mbuf, rx_descriptor_fields1) + 8);
+S_ASSERT_RTE_MBUF(offsetof(struct rte_mbuf, hash) ==
+ offsetof(struct rte_mbuf, rx_descriptor_fields1) + 12);
+
+/* rxq_cq_to_ptype_oflags_v() */
+S_ASSERT_RTE_MBUF(offsetof(struct rte_mbuf, ol_flags) ==
+ offsetof(struct rte_mbuf, rearm_data) + 8);
+S_ASSERT_RTE_MBUF(offsetof(struct rte_mbuf, rearm_data) ==
+ RTE_ALIGN(offsetof(struct rte_mbuf, rearm_data), 16));
+
+/* rxq_burst_v() */
+S_ASSERT_RTE_MBUF(offsetof(struct rte_mbuf, pkt_len) ==
+ offsetof(struct rte_mbuf, rx_descriptor_fields1) + 4);
+S_ASSERT_RTE_MBUF(offsetof(struct rte_mbuf, data_len) ==
+ offsetof(struct rte_mbuf, rx_descriptor_fields1) + 8);
+S_ASSERT_MLX5_CQE(offsetof(struct mlx5_cqe, pkt_info) == 0);
+S_ASSERT_MLX5_CQE(offsetof(struct mlx5_cqe, rx_hash_res) ==
+ offsetof(struct mlx5_cqe, pkt_info) + 12);
+S_ASSERT_MLX5_CQE(offsetof(struct mlx5_cqe, rsvd1) +
+ sizeof(((struct mlx5_cqe *)0)->rsvd1) ==
+ offsetof(struct mlx5_cqe, hdr_type_etc));
+S_ASSERT_MLX5_CQE(offsetof(struct mlx5_cqe, vlan_info) ==
+ offsetof(struct mlx5_cqe, hdr_type_etc) + 2);
+S_ASSERT_MLX5_CQE(offsetof(struct mlx5_cqe, rsvd2) +
+ sizeof(((struct mlx5_cqe *)0)->rsvd2) ==
+ offsetof(struct mlx5_cqe, byte_cnt));
+S_ASSERT_MLX5_CQE(offsetof(struct mlx5_cqe, sop_drop_qpn) ==
+ RTE_ALIGN(offsetof(struct mlx5_cqe, sop_drop_qpn), 8));
+S_ASSERT_MLX5_CQE(offsetof(struct mlx5_cqe, op_own) ==
+ offsetof(struct mlx5_cqe, sop_drop_qpn) + 7);
+
+#endif /* RTE_PMD_MLX5_RXTX_VEC_H_ */