update source to Ceph Pacific 16.2.2

[ceph.git] / ceph / src / spdk / dpdk / lib / librte_eal / ppc / include / rte_byteorder.h

diff --git a/ceph/src/spdk/dpdk/lib/librte_eal/ppc/include/rte_byteorder.h b/ceph/src/spdk/dpdk/lib/librte_eal/ppc/include/rte_byteorder.h
new file mode 100644 (file)
index 0000000..bfdded4
--- /dev/null
+++ b/ceph/src/spdk/dpdk/lib/librte_eal/ppc/include/rte_byteorder.h
@@ -0,0 +1,120 @@
+/*
+ * SPDX-License-Identifier: BSD-3-Clause
+ * Inspired from FreeBSD src/sys/powerpc/include/endian.h
+ * Copyright (c) 1987, 1991, 1993
+ * The Regents of the University of California.  All rights reserved.
+ */
+
+#ifndef _RTE_BYTEORDER_PPC_64_H_
+#define _RTE_BYTEORDER_PPC_64_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+#include "generic/rte_byteorder.h"
+
+/*
+ * An architecture-optimized byte swap for a 16-bit value.
+ *
+ * Do not use this function directly. The preferred function is rte_bswap16().
+ */
+static inline uint16_t rte_arch_bswap16(uint16_t _x)
+{
+       return (_x >> 8) | ((_x << 8) & 0xff00);
+}
+
+/*
+ * An architecture-optimized byte swap for a 32-bit value.
+ *
+ * Do not use this function directly. The preferred function is rte_bswap32().
+ */
+static inline uint32_t rte_arch_bswap32(uint32_t _x)
+{
+       return (_x >> 24) | ((_x >> 8) & 0xff00) | ((_x << 8) & 0xff0000) |
+               ((_x << 24) & 0xff000000);
+}
+
+/*
+ * An architecture-optimized byte swap for a 64-bit value.
+ *
+  * Do not use this function directly. The preferred function is rte_bswap64().
+ */
+/* 64-bit mode */
+static inline uint64_t rte_arch_bswap64(uint64_t _x)
+{
+       return (_x >> 56) | ((_x >> 40) & 0xff00) | ((_x >> 24) & 0xff0000) |
+               ((_x >> 8) & 0xff000000) | ((_x << 8) & (0xffULL << 32)) |
+               ((_x << 24) & (0xffULL << 40)) |
+               ((_x << 40) & (0xffULL << 48)) | ((_x << 56));
+}
+
+#ifndef RTE_FORCE_INTRINSICS
+#define rte_bswap16(x) ((uint16_t)(__builtin_constant_p(x) ?           \
+                                  rte_constant_bswap16(x) :            \
+                                  rte_arch_bswap16(x)))
+
+#define rte_bswap32(x) ((uint32_t)(__builtin_constant_p(x) ?           \
+                                  rte_constant_bswap32(x) :            \
+                                  rte_arch_bswap32(x)))
+
+#define rte_bswap64(x) ((uint64_t)(__builtin_constant_p(x) ?           \
+                                  rte_constant_bswap64(x) :            \
+                                  rte_arch_bswap64(x)))
+#else
+/*
+ * __builtin_bswap16 is only available gcc 4.8 and upwards
+ */
+#if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 8)
+#define rte_bswap16(x) ((uint16_t)(__builtin_constant_p(x) ?           \
+                                  rte_constant_bswap16(x) :            \
+                                  rte_arch_bswap16(x)))
+#endif
+#endif
+
+/* Power 8 have both little endian and big endian mode
+ * Power 7 only support big endian
+ */
+#if RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN
+
+#define rte_cpu_to_le_16(x) (x)
+#define rte_cpu_to_le_32(x) (x)
+#define rte_cpu_to_le_64(x) (x)
+
+#define rte_cpu_to_be_16(x) rte_bswap16(x)
+#define rte_cpu_to_be_32(x) rte_bswap32(x)
+#define rte_cpu_to_be_64(x) rte_bswap64(x)
+
+#define rte_le_to_cpu_16(x) (x)
+#define rte_le_to_cpu_32(x) (x)
+#define rte_le_to_cpu_64(x) (x)
+
+#define rte_be_to_cpu_16(x) rte_bswap16(x)
+#define rte_be_to_cpu_32(x) rte_bswap32(x)
+#define rte_be_to_cpu_64(x) rte_bswap64(x)
+
+#else /* RTE_BIG_ENDIAN */
+
+#define rte_cpu_to_le_16(x) rte_bswap16(x)
+#define rte_cpu_to_le_32(x) rte_bswap32(x)
+#define rte_cpu_to_le_64(x) rte_bswap64(x)
+
+#define rte_cpu_to_be_16(x) (x)
+#define rte_cpu_to_be_32(x) (x)
+#define rte_cpu_to_be_64(x) (x)
+
+#define rte_le_to_cpu_16(x) rte_bswap16(x)
+#define rte_le_to_cpu_32(x) rte_bswap32(x)
+#define rte_le_to_cpu_64(x) rte_bswap64(x)
+
+#define rte_be_to_cpu_16(x) (x)
+#define rte_be_to_cpu_32(x) (x)
+#define rte_be_to_cpu_64(x) (x)
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _RTE_BYTEORDER_PPC_64_H_ */