Adding upstream version 14.2.21.upstream/14.2.21upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 143 insertions, 0 deletions

diff --git a/src/spdk/dpdk/lib/librte_bpf/bpf_def.h b/src/spdk/dpdk/lib/librte_bpf/bpf_def.h
new file mode 100644
index 00000000..c10f3aec
--- /dev/null
+++ b/src/spdk/dpdk/lib/librte_bpf/bpf_def.h
@@ -0,0 +1,143 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 1982, 1986, 1990, 1993
+ *      The Regents of the University of California.
+ * Copyright(c) 2018 Intel Corporation.
+ */
+
+#ifndef _RTE_BPF_DEF_H_
+#define _RTE_BPF_DEF_H_
+
+/**
+ * @file
+ *
+ * classic BPF (cBPF) and extended BPF (eBPF) related defines.
+ * For more information regarding cBPF and eBPF ISA and their differences,
+ * please refer to:
+ * https://www.kernel.org/doc/Documentation/networking/filter.txt.
+ * As a rule of thumb for that file:
+ * all definitions used by both cBPF and eBPF start with bpf(BPF)_ prefix,
+ * while eBPF only ones start with ebpf(EBPF)) prefix.
+ */
+
+#include <stdint.h>
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * The instruction encodings.
+ */
+
+/* Instruction classes */
+#define BPF_CLASS(code) ((code) & 0x07)
+#define	BPF_LD		0x00
+#define	BPF_LDX		0x01
+#define	BPF_ST		0x02
+#define	BPF_STX		0x03
+#define	BPF_ALU		0x04
+#define	BPF_JMP		0x05
+#define	BPF_RET		0x06
+#define	BPF_MISC        0x07
+
+#define EBPF_ALU64	0x07
+
+/* ld/ldx fields */
+#define BPF_SIZE(code)  ((code) & 0x18)
+#define	BPF_W		0x00
+#define	BPF_H		0x08
+#define	BPF_B		0x10
+#define	EBPF_DW		0x18
+
+#define BPF_MODE(code)  ((code) & 0xe0)
+#define	BPF_IMM		0x00
+#define	BPF_ABS		0x20
+#define	BPF_IND		0x40
+#define	BPF_MEM		0x60
+#define	BPF_LEN		0x80
+#define	BPF_MSH		0xa0
+
+#define EBPF_XADD	0xc0
+
+/* alu/jmp fields */
+#define BPF_OP(code)    ((code) & 0xf0)
+#define	BPF_ADD		0x00
+#define	BPF_SUB		0x10
+#define	BPF_MUL		0x20
+#define	BPF_DIV		0x30
+#define	BPF_OR		0x40
+#define	BPF_AND		0x50
+#define	BPF_LSH		0x60
+#define	BPF_RSH		0x70
+#define	BPF_NEG		0x80
+#define	BPF_MOD		0x90
+#define	BPF_XOR		0xa0
+
+#define EBPF_MOV	0xb0
+#define EBPF_ARSH	0xc0
+#define EBPF_END	0xd0
+
+#define	BPF_JA		0x00
+#define	BPF_JEQ		0x10
+#define	BPF_JGT		0x20
+#define	BPF_JGE		0x30
+#define	BPF_JSET        0x40
+
+#define EBPF_JNE	0x50
+#define EBPF_JSGT	0x60
+#define EBPF_JSGE	0x70
+#define EBPF_CALL	0x80
+#define EBPF_EXIT	0x90
+#define EBPF_JLT	0xa0
+#define EBPF_JLE	0xb0
+#define EBPF_JSLT	0xc0
+#define EBPF_JSLE	0xd0
+
+#define BPF_SRC(code)   ((code) & 0x08)
+#define	BPF_K		0x00
+#define	BPF_X		0x08
+
+/* if BPF_OP(code) == EBPF_END */
+#define EBPF_TO_LE	0x00  /* convert to little-endian */
+#define EBPF_TO_BE	0x08  /* convert to big-endian */
+
+/*
+ * eBPF registers
+ */
+enum {
+	EBPF_REG_0,  /* return value from internal function/for eBPF program */
+	EBPF_REG_1,  /* 0-th argument to internal function */
+	EBPF_REG_2,  /* 1-th argument to internal function */
+	EBPF_REG_3,  /* 2-th argument to internal function */
+	EBPF_REG_4,  /* 3-th argument to internal function */
+	EBPF_REG_5,  /* 4-th argument to internal function */
+	EBPF_REG_6,  /* callee saved register */
+	EBPF_REG_7,  /* callee saved register */
+	EBPF_REG_8,  /* callee saved register */
+	EBPF_REG_9,  /* callee saved register */
+	EBPF_REG_10, /* stack pointer (read-only) */
+	EBPF_REG_NUM,
+};
+
+/*
+ * eBPF instruction format
+ */
+struct ebpf_insn {
+	uint8_t code;
+	uint8_t dst_reg:4;
+	uint8_t src_reg:4;
+	int16_t off;
+	int32_t imm;
+};
+
+/*
+ * eBPF allows functions with R1-R5 as arguments.
+ */
+#define	EBPF_FUNC_MAX_ARGS	(EBPF_REG_6 - EBPF_REG_1)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* RTE_BPF_DEF_H_ */