[dpdk-dev] [PATCH v3 1/2] net/tap: add eBPF instructions to TAP device
Pascal Mazon
pascal.mazon at 6wind.com
Wed Jan 10 10:34:52 CET 2018
Hi Ophir,
I have a few remarks.
- Why do you define ARRAY_SIZE in tap_flow.h while it's used only in
tap_bpf_insns.c?
- I really dislike having the BPF bytecode hardcoded in tap_bpf_insns.c.
You don't provide the commands used to generate that bytecode.
And you don't provide the way to translate bytecode into these insns[]
arrays.
So we're just supposed to trust that these instructions are indeed
what they pretend to be.
The process is not repeatable nor verifiable.
On 10/01/2018 08:06, Ophir Munk wrote:
> TAP PMD is required to support RSS queue mapping based on rte_flow API. An
> example usage for this requirement is failsafe transparent switching from a
> PCI device to TAP device while keep redirecting packets to the same RSS
> queues on both devices.
>
> TAP RSS implementation is based on eBPF programs sent to Linux kernel
> through BPF system calls and using netlink messages to reference the
> programs as part of traffic control commands.
>
> An eBPF program acts as a traffic control classifier or action. Each
> program is written in C code under a different ELF section name. Clang 3.7
> is used to compile the C code into eBPF-formatted object file. The ELF file
> is parsed and its sections (programs) can be downloaded to the kernel using
> BPF system call. The BPF system call parameters contain the array of eBPF
> instructions. This commit includes BPF classifier and action programs
> (tap_bpf_program.c) as reference and their corresponding arrays of eBPF
> instructions (tap_bpf_insns.c). The reference file does not take part in
> dpdk compilation. The details on how to generate new eBPF code will be
> presented in another commit.
>
> In a follow up commit TAP PMD will use the eBPF programs to implement RSS
> flow rules.
>
> TAP eBPF requires Linux version 4.9 configured with BPF. TAP PMD will
> successfully compile on systems with old or non-BPF configured kernels but
> RSS rules creation on TAP devices will not be supported.
>
> Signed-off-by: Ophir Munk <ophirmu at mellanox.com>
> ---
> drivers/net/tap/Makefile | 11 +
> drivers/net/tap/tap_bpf.h | 96 ++
> drivers/net/tap/tap_bpf_insns.c | 1845 +++++++++++++++++++++++++++++++++++++
> drivers/net/tap/tap_bpf_program.c | 221 +++++
> drivers/net/tap/tap_flow.h | 5 +
> 5 files changed, 2178 insertions(+)
> create mode 100644 drivers/net/tap/tap_bpf.h
> create mode 100644 drivers/net/tap/tap_bpf_insns.c
> create mode 100644 drivers/net/tap/tap_bpf_program.c
>
> diff --git a/drivers/net/tap/Makefile b/drivers/net/tap/Makefile
> index fd4195f..feaa5b7 100644
> --- a/drivers/net/tap/Makefile
> +++ b/drivers/net/tap/Makefile
> @@ -12,6 +12,9 @@ EXPORT_MAP := rte_pmd_tap_version.map
>
> LIBABIVER := 1
>
> +# TAP_MAX_QUEUES must be a power of 2 as it will be used for masking */
> +TAP_MAX_QUEUES = 16
> +
> CFLAGS += -O3
> CFLAGS += -I$(SRCDIR)
> CFLAGS += -I.
> @@ -20,6 +23,8 @@ LDLIBS += -lrte_eal -lrte_mbuf -lrte_mempool -lrte_ring
> LDLIBS += -lrte_ethdev -lrte_net -lrte_kvargs -lrte_hash
> LDLIBS += -lrte_bus_vdev
>
> +CFLAGS += -DTAP_MAX_QUEUES=$(TAP_MAX_QUEUES)
> +
> #
> # all source are stored in SRCS-y
> #
> @@ -27,6 +32,7 @@ SRCS-$(CONFIG_RTE_LIBRTE_PMD_TAP) += rte_eth_tap.c
> SRCS-$(CONFIG_RTE_LIBRTE_PMD_TAP) += tap_flow.c
> SRCS-$(CONFIG_RTE_LIBRTE_PMD_TAP) += tap_netlink.c
> SRCS-$(CONFIG_RTE_LIBRTE_PMD_TAP) += tap_tcmsgs.c
> +SRCS-$(CONFIG_RTE_LIBRTE_PMD_TAP) += tap_bpf_insns.c
>
> include $(RTE_SDK)/mk/rte.lib.mk
>
> @@ -53,6 +59,11 @@ tap_autoconf.h.new: $(RTE_SDK)/buildtools/auto-config-h.sh
> linux/pkt_cls.h \
> enum TCA_FLOWER_KEY_VLAN_PRIO \
> $(AUTOCONF_OUTPUT)
> + $Q sh -- '$<' '$@' \
> + HAVE_BPF_PROG_LOAD \
> + linux/bpf.h \
> + enum BPF_PROG_LOAD \
> + $(AUTOCONF_OUTPUT)
>
> # Create tap_autoconf.h or update it in case it differs from the new one.
>
> diff --git a/drivers/net/tap/tap_bpf.h b/drivers/net/tap/tap_bpf.h
> new file mode 100644
> index 0000000..82775b7
> --- /dev/null
> +++ b/drivers/net/tap/tap_bpf.h
> @@ -0,0 +1,96 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright 2017 Mellanox Technologies, Ltd.
> + */
> +
> +#ifndef __TAP_BPF_H__
> +#define __TAP_BPF_H__
> +
> +#include <tap_autoconf.h>
> +
> +#ifdef HAVE_BPF_PROG_LOAD
> +#include <linux/bpf.h>
> +#else
> +/* BPF_MAP_UPDATE_ELEM command flags */
> +#define BPF_ANY 0 /* create a new element or update an existing */
> +
> +/* BPF architecture instruction struct */
> +struct bpf_insn {
> + __u8 code;
> + __u8 dst_reg:4;
> + __u8 src_reg:4;
> + __s16 off;
> + __s32 imm; /* immediate value */
> +};
> +
> +/* BPF program types */
> +enum bpf_prog_type {
> + BPF_PROG_TYPE_UNSPEC,
> + BPF_PROG_TYPE_SOCKET_FILTER,
> + BPF_PROG_TYPE_KPROBE,
> + BPF_PROG_TYPE_SCHED_CLS,
> + BPF_PROG_TYPE_SCHED_ACT,
> +};
> +
> +/* BPF commands types */
> +enum bpf_cmd {
> + BPF_MAP_CREATE,
> + BPF_MAP_LOOKUP_ELEM,
> + BPF_MAP_UPDATE_ELEM,
> + BPF_MAP_DELETE_ELEM,
> + BPF_MAP_GET_NEXT_KEY,
> + BPF_PROG_LOAD,
> +};
> +
> +/* BPF maps types */
> +enum bpf_map_type {
> + BPF_MAP_TYPE_UNSPEC,
> + BPF_MAP_TYPE_HASH,
> +};
> +
> +/* union of anonymous structs used with TAP BPF commands */
> +union bpf_attr {
> + /* BPF_MAP_CREATE command */
> + struct {
> + __u32 map_type;
> + __u32 key_size;
> + __u32 value_size;
> + __u32 max_entries;
> + __u32 map_flags;
> + __u32 inner_map_fd;
> + };
> +
> + /* BPF_MAP_UPDATE_ELEM, BPF_MAP_DELETE_ELEM commands */
> + struct {
> + __u32 map_fd;
> + __aligned_u64 key;
> + union {
> + __aligned_u64 value;
> + __aligned_u64 next_key;
> + };
> + __u64 flags;
> + };
> +
> + /* BPF_PROG_LOAD command */
> + struct {
> + __u32 prog_type;
> + __u32 insn_cnt;
> + __aligned_u64 insns;
> + __aligned_u64 license;
> + __u32 log_level;
> + __u32 log_size;
> + __aligned_u64 log_buf;
> + __u32 kern_version;
> + __u32 prog_flags;
> + };
> +} __attribute__((aligned(8)));
> +#endif
> +
> +enum {
> + BPF_MAP_ID_KEY,
> + BPF_MAP_ID_SIMPLE,
> +};
> +
> +static int bpf_load(enum bpf_prog_type type, const struct bpf_insn *insns,
> + size_t insns_cnt, const char *license);
> +
> +#endif /* __TAP_BPF_H__ */
> diff --git a/drivers/net/tap/tap_bpf_insns.c b/drivers/net/tap/tap_bpf_insns.c
> new file mode 100644
> index 0000000..25aa82c
> --- /dev/null
> +++ b/drivers/net/tap/tap_bpf_insns.c
> @@ -0,0 +1,1845 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright 2017 Mellanox Technologies, Ltd.
> + */
> +
> +#include <errno.h>
> +#include <string.h>
> +#include <unistd.h>
> +#include <sys/queue.h>
> +#include <sys/mount.h>
> +
> +#include <rte_byteorder.h>
> +#include <rte_jhash.h>
> +#include <rte_malloc.h>
> +#include <rte_eth_tap.h>
> +#include <tap_flow.h>
> +#include <tap_autoconf.h>
> +#include <tap_tcmsgs.h>
> +#include <tap_bpf.h>
> +
> +#define ERROR 0
> +
> +/*
> + * The queue number is offset by 1, to distinguish packets that have
> + * gone through this rule (skb->cb[1] != 0) from others.
> + */
> +#define QUEUE_OFFSET 1
> +
> +/* bpf_insn array matching cls_q section. See tap_bpf_program.c file */
> +static struct bpf_insn cls_q_insns[] = {
> + {0x61, 1, 1, 52, 0x00000000},
> + {0x18, 2, 0, 0, 0xdeadbeef},
> + {0x00, 0, 0, 0, 0x00000000},
> + {0x63, 10, 2, -4, 0x00000000},
> + {0x61, 2, 10, -4, 0x00000000},
> + {0x07, 2, 0, 0, 0x00000001},
> + {0x67, 2, 0, 0, 0x00000020},
> + {0x77, 2, 0, 0, 0x00000020},
> + {0xb7, 0, 0, 0, 0xffffffff},
> + {0x1d, 1, 2, 1, 0x00000000},
> + {0xb7, 0, 0, 0, 0x00000000},
> + {0x95, 0, 0, 0, 0x00000000},
> +};
> +
> +/**
> + * Load BPF program (section cls_q) into the kernel and return a bpf fd
> + *
> + * @param queue_idx
> + * Queue index matching packet cb
> + *
> + * @return
> + * -1 if the BPF program couldn't be loaded. An fd (int) otherwise.
> + */
> +int tap_flow_bpf_cls_q(__u32 queue_idx)
> +{
> + cls_q_insns[1].imm = queue_idx;
> +
> + return bpf_load(BPF_PROG_TYPE_SCHED_CLS,
> + (struct bpf_insn *)cls_q_insns,
> + ARRAY_SIZE(cls_q_insns),
> + "Dual BSD/GPL");
> +}
> +
> +/* bpf_insn array matching l3_l4 section. see tap_bpf_program.c file */
> +static struct bpf_insn l3_l4_hash_insns[] = {
> + {0xbf, 7, 1, 0, 0x00000000},
> + {0x61, 8, 7, 16, 0x00000000},
> + {0x61, 6, 7, 76, 0x00000000},
> + {0x61, 9, 7, 80, 0x00000000},
> + {0x18, 1, 0, 0, 0xdeadbeef},
> + {0x00, 0, 0, 0, 0x00000000},
> + {0x63, 10, 1, -4, 0x00000000},
> + {0xbf, 2, 10, 0, 0x00000000},
> + {0x07, 2, 0, 0, 0xfffffffc},
> + {0x18, 1, 1, 0, 0x0000cafe},
> + {0x00, 0, 0, 0, 0x00000000},
> + {0x85, 0, 0, 0, 0x00000001},
> + {0x55, 0, 0, 21, 0x00000000},
> + {0xb7, 1, 0, 0, 0x00000a64},
> + {0x6b, 10, 1, -16, 0x00000000},
> + {0x18, 1, 0, 0, 0x69666e6f},
> + {0x00, 0, 0, 0, 0x65727567},
> + {0x7b, 10, 1, -24, 0x00000000},
> + {0x18, 1, 0, 0, 0x6e207369},
> + {0x00, 0, 0, 0, 0x6320746f},
> + {0x7b, 10, 1, -32, 0x00000000},
> + {0x18, 1, 0, 0, 0x20737372},
> + {0x00, 0, 0, 0, 0x2079656b},
> + {0x7b, 10, 1, -40, 0x00000000},
> + {0x18, 1, 0, 0, 0x68736168},
> + {0x00, 0, 0, 0, 0x203a2928},
> + {0x7b, 10, 1, -48, 0x00000000},
> + {0xb7, 7, 0, 0, 0x00000000},
> + {0x73, 10, 7, -14, 0x00000000},
> + {0xbf, 1, 10, 0, 0x00000000},
> + {0x07, 1, 0, 0, 0xffffffd0},
> + {0xb7, 2, 0, 0, 0x00000023},
> + {0x85, 0, 0, 0, 0x00000006},
> + {0x05, 0, 0, 1632, 0x00000000},
> + {0xb7, 1, 0, 0, 0x0000000e},
> + {0x61, 2, 7, 20, 0x00000000},
> + {0x15, 2, 0, 10, 0x00000000},
> + {0x61, 2, 7, 28, 0x00000000},
> + {0x55, 2, 0, 8, 0x0000a888},
> + {0xbf, 2, 7, 0, 0x00000000},
> + {0xb7, 7, 0, 0, 0x00000000},
> + {0xbf, 1, 6, 0, 0x00000000},
> + {0x07, 1, 0, 0, 0x00000012},
> + {0x2d, 1, 9, 1622, 0x00000000},
> + {0xb7, 1, 0, 0, 0x00000012},
> + {0x69, 8, 6, 16, 0x00000000},
> + {0xbf, 7, 2, 0, 0x00000000},
> + {0x7b, 10, 7, -56, 0x00000000},
> + {0x57, 8, 0, 0, 0x0000ffff},
> + {0x15, 8, 0, 409, 0x0000dd86},
> + {0xb7, 7, 0, 0, 0x00000003},
> + {0x55, 8, 0, 1614, 0x00000008},
> + {0x0f, 6, 1, 0, 0x00000000},
> + {0xb7, 7, 0, 0, 0x00000000},
> + {0xbf, 1, 6, 0, 0x00000000},
> + {0x07, 1, 0, 0, 0x00000018},
> + {0x2d, 1, 9, 1609, 0x00000000},
> + {0x71, 3, 6, 12, 0x00000000},
> + {0xbf, 1, 3, 0, 0x00000000},
> + {0x67, 1, 0, 0, 0x00000038},
> + {0xc7, 1, 0, 0, 0x00000020},
> + {0x77, 1, 0, 0, 0x0000001f},
> + {0x57, 1, 0, 0, 0x2cc681d1},
> + {0x67, 3, 0, 0, 0x00000018},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x40000000},
> + {0xb7, 2, 0, 0, 0x00000000},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x598d03a2},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x20000000},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xb31a0745},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x10000000},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x66340e8a},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x08000000},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xcc681d15},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x04000000},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x98d03a2b},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x02000000},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x31a07456},
> + {0x57, 3, 0, 0, 0x01000000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x6340e8ad},
> + {0x71, 3, 6, 13, 0x00000000},
> + {0x67, 3, 0, 0, 0x00000010},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00800000},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xc681d15b},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00400000},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x8d03a2b7},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00200000},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x1a07456f},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00100000},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x340e8ade},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00080000},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x681d15bd},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00040000},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xd03a2b7b},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00020000},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xa07456f6},
> + {0x57, 3, 0, 0, 0x00010000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x40e8aded},
> + {0x71, 3, 6, 14, 0x00000000},
> + {0x67, 3, 0, 0, 0x00000008},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00008000},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x81d15bdb},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00004000},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x03a2b7b7},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00002000},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x07456f6f},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00001000},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x0e8adedf},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00000800},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x1d15bdbf},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00000400},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x3a2b7b7e},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00000200},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x7456f6fd},
> + {0x57, 3, 0, 0, 0x00000100},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xe8adedfa},
> + {0x71, 3, 6, 15, 0x00000000},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00000080},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xd15bdbf4},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00000040},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xa2b7b7e9},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00000020},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x456f6fd3},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00000010},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x8adedfa7},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00000008},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x15bdbf4f},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00000004},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x2b7b7e9e},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00000002},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x56f6fd3d},
> + {0x57, 3, 0, 0, 0x00000001},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xadedfa7b},
> + {0x71, 4, 6, 16, 0x00000000},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x67, 5, 0, 0, 0x00000038},
> + {0xc7, 5, 0, 0, 0x00000020},
> + {0xb7, 3, 0, 0, 0xffffffff},
> + {0x6d, 5, 3, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x5bdbf4f7},
> + {0x67, 4, 0, 0, 0x00000018},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x40000000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xb7b7e9ef},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x20000000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x6f6fd3df},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x10000000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xdedfa7bf},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x08000000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xbdbf4f7f},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x04000000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x7b7e9eff},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x02000000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xf6fd3dff},
> + {0x57, 4, 0, 0, 0x01000000},
> + {0x1d, 4, 2, 1, 0x00000000},
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> + {0x71, 4, 6, 17, 0x00000000},
> + {0x67, 4, 0, 0, 0x00000010},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00800000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xdbf4f7fc},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00400000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xb7e9eff9},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00200000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x6fd3dff2},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00100000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xdfa7bfe5},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00080000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xbf4f7fca},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00040000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x7e9eff94},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00020000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xfd3dff28},
> + {0x57, 4, 0, 0, 0x00010000},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xfa7bfe51},
> + {0x71, 4, 6, 18, 0x00000000},
> + {0x67, 4, 0, 0, 0x00000008},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00008000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xf4f7fca2},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00004000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xe9eff945},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00002000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xd3dff28a},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00001000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xa7bfe514},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00000800},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x4f7fca28},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00000400},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x9eff9450},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00000200},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x3dff28a0},
> + {0x57, 4, 0, 0, 0x00000100},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x7bfe5141},
> + {0x71, 4, 6, 19, 0x00000000},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00000080},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xf7fca283},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00000040},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xeff94506},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00000020},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xdff28a0c},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00000010},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xbfe51418},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00000008},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x7fca2831},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00000004},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xff945063},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00000002},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xff28a0c6},
> + {0x57, 4, 0, 0, 0x00000001},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xfe51418c},
> + {0x71, 4, 6, 20, 0x00000000},
> + {0x67, 4, 0, 0, 0x00000008},
> + {0x71, 5, 6, 21, 0x00000000},
> + {0x4f, 4, 5, 0, 0x00000000},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x67, 5, 0, 0, 0x00000030},
> + {0xc7, 5, 0, 0, 0x00000020},
> + {0x6d, 5, 3, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xfca28319},
> + {0x67, 4, 0, 0, 0x00000010},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x40000000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xf9450633},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x20000000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xf28a0c67},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x10000000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xe51418ce},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x08000000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xca28319d},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x04000000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x9450633b},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x02000000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x28a0c676},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x01000000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x51418ced},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x00800000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xa28319db},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x00400000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x450633b6},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x00200000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x8a0c676c},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x00100000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x1418ced8},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x00080000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x28319db1},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x00040000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x50633b63},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x00020000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xa0c676c6},
> + {0x57, 4, 0, 0, 0x00010000},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x418ced8d},
> + {0x71, 3, 6, 22, 0x00000000},
> + {0x67, 3, 0, 0, 0x00000008},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00008000},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x8319db1a},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00004000},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x0633b634},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00002000},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x0c676c68},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00001000},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x18ced8d1},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00000800},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x319db1a3},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00000400},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x633b6347},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00000200},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xc676c68f},
> + {0x57, 3, 0, 0, 0x00000100},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x8ced8d1f},
> + {0x71, 3, 6, 23, 0x00000000},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00000080},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x19db1a3e},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00000040},
> + {0x79, 5, 10, -56, 0x00000000},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x33b6347d},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00000020},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x676c68fa},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00000010},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xced8d1f4},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00000008},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x9db1a3e9},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00000004},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x3b6347d2},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00000002},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x76c68fa5},
> + {0x57, 3, 0, 0, 0x00000001},
> + {0x1d, 3, 2, 1177, 0x00000000},
> + {0xa7, 1, 0, 0, 0xed8d1f4a},
> + {0x05, 0, 0, 1175, 0x00000000},
> + {0x0f, 6, 1, 0, 0x00000000},
> + {0xb7, 7, 0, 0, 0x00000000},
> + {0xbf, 1, 6, 0, 0x00000000},
> + {0x07, 1, 0, 0, 0x0000002c},
> + {0x2d, 1, 9, 1202, 0x00000000},
> + {0x61, 4, 6, 8, 0x00000000},
> + {0xbf, 1, 4, 0, 0x00000000},
> + {0x67, 1, 0, 0, 0x00000038},
> + {0xc7, 1, 0, 0, 0x00000020},
> + {0x77, 1, 0, 0, 0x0000001f},
> + {0x57, 1, 0, 0, 0x2cc681d1},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x00000040},
> + {0xb7, 2, 0, 0, 0x00000000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x598d03a2},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x00000020},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xb31a0745},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x00000010},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x66340e8a},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x00000008},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xcc681d15},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x00000004},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x98d03a2b},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x00000002},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x31a07456},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x00000001},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x6340e8ad},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x00008000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xc681d15b},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x00004000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x8d03a2b7},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x00002000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x1a07456f},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x00001000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x340e8ade},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x00000800},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x681d15bd},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x00000400},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xd03a2b7b},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x00000200},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xa07456f6},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x00000100},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x40e8aded},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x00800000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x81d15bdb},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x00400000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x03a2b7b7},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x00200000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x07456f6f},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x00100000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x0e8adedf},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x00080000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x1d15bdbf},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x00040000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x3a2b7b7e},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x00020000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x7456f6fd},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x00010000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xe8adedfa},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x67, 5, 0, 0, 0x00000020},
> + {0xc7, 5, 0, 0, 0x00000020},
> + {0xb7, 3, 0, 0, 0xffffffff},
> + {0x6d, 5, 3, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xd15bdbf4},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x40000000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xa2b7b7e9},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x20000000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x456f6fd3},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x10000000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x8adedfa7},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x08000000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x15bdbf4f},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x04000000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x2b7b7e9e},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x02000000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x56f6fd3d},
> + {0x57, 4, 0, 0, 0x01000000},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xadedfa7b},
> + {0x61, 4, 6, 12, 0x00000000},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00000080},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x5bdbf4f7},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00000040},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xb7b7e9ef},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00000020},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x6f6fd3df},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00000010},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xdedfa7bf},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00000008},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xbdbf4f7f},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00000004},
> + {0x1d, 5, 2, 1, 0x00000000},
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> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00001000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xb1eac831},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00000800},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x63d59063},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00000400},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xc7ab20c7},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00000200},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x8f56418f},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00000100},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x1eac831e},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00800000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x3d59063c},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00400000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x7ab20c78},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00200000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xf56418f0},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00100000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xeac831e1},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00080000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xd59063c2},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00040000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xab20c784},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00020000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x56418f09},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x00010000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xac831e12},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x67, 5, 0, 0, 0x00000020},
> + {0xc7, 5, 0, 0, 0x00000020},
> + {0x6d, 5, 3, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x59063c25},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x40000000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xb20c784b},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x20000000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x6418f097},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x10000000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xc831e12f},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x08000000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x9063c25f},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x04000000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x20c784be},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x57, 5, 0, 0, 0x02000000},
> + {0x1d, 5, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x418f097c},
> + {0x57, 4, 0, 0, 0x01000000},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x831e12f9},
> + {0x71, 4, 6, 40, 0x00000000},
> + {0x67, 4, 0, 0, 0x00000008},
> + {0x71, 5, 6, 41, 0x00000000},
> + {0x4f, 4, 5, 0, 0x00000000},
> + {0xbf, 5, 4, 0, 0x00000000},
> + {0x67, 5, 0, 0, 0x00000030},
> + {0xc7, 5, 0, 0, 0x00000020},
> + {0x6d, 5, 3, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x063c25f3},
> + {0x67, 4, 0, 0, 0x00000010},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x40000000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x0c784be7},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x20000000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x18f097cf},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x10000000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x31e12f9f},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x08000000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x63c25f3f},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x04000000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xc784be7f},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x02000000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x8f097cff},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x01000000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x1e12f9fe},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x00800000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x3c25f3fc},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x00400000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x784be7f8},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x00200000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xf097cff0},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x00100000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xe12f9fe0},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x00080000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xc25f3fc1},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x00040000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x84be7f83},
> + {0xbf, 3, 4, 0, 0x00000000},
> + {0x57, 3, 0, 0, 0x00020000},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x097cff07},
> + {0x57, 4, 0, 0, 0x00010000},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x12f9fe0f},
> + {0x71, 3, 6, 42, 0x00000000},
> + {0x67, 3, 0, 0, 0x00000008},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00008000},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x25f3fc1f},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00004000},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x4be7f83f},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00002000},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x97cff07f},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00001000},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x2f9fe0fe},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00000800},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x5f3fc1fd},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00000400},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xbe7f83fb},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00000200},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x7cff07f7},
> + {0x57, 3, 0, 0, 0x00000100},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xf9fe0fee},
> + {0x71, 3, 6, 43, 0x00000000},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00000080},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xf3fc1fdc},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00000040},
> + {0x79, 5, 10, -56, 0x00000000},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xe7f83fb8},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00000020},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xcff07f70},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00000010},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x9fe0fee1},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00000008},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x3fc1fdc2},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00000004},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0x7f83fb85},
> + {0xbf, 4, 3, 0, 0x00000000},
> + {0x57, 4, 0, 0, 0x00000002},
> + {0x1d, 4, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xff07f70a},
> + {0x57, 3, 0, 0, 0x00000001},
> + {0x1d, 3, 2, 1, 0x00000000},
> + {0xa7, 1, 0, 0, 0xfe0fee15},
> + {0x71, 2, 0, 201, 0x00000000},
> + {0x67, 2, 0, 0, 0x00000008},
> + {0x71, 3, 0, 200, 0x00000000},
> + {0x4f, 2, 3, 0, 0x00000000},
> + {0x71, 3, 0, 203, 0x00000000},
> + {0x67, 3, 0, 0, 0x00000008},
> + {0x71, 4, 0, 202, 0x00000000},
> + {0x4f, 3, 4, 0, 0x00000000},
> + {0x67, 3, 0, 0, 0x00000010},
> + {0x4f, 3, 2, 0, 0x00000000},
> + {0x67, 1, 0, 0, 0x00000020},
> + {0x77, 1, 0, 0, 0x00000020},
> + {0xbf, 2, 1, 0, 0x00000000},
> + {0x3f, 2, 3, 0, 0x00000000},
> + {0x2f, 2, 3, 0, 0x00000000},
> + {0x1f, 1, 2, 0, 0x00000000},
> + {0x57, 1, 0, 0, 0x0000000f},
> + {0x67, 1, 0, 0, 0x00000002},
> + {0x0f, 0, 1, 0, 0x00000000},
> + {0x71, 1, 0, 137, 0x00000000},
> + {0x67, 1, 0, 0, 0x00000008},
> + {0x71, 2, 0, 136, 0x00000000},
> + {0x4f, 1, 2, 0, 0x00000000},
> + {0x71, 2, 0, 138, 0x00000000},
> + {0x71, 3, 0, 139, 0x00000000},
> + {0x67, 3, 0, 0, 0x00000008},
> + {0x4f, 3, 2, 0, 0x00000000},
> + {0x67, 3, 0, 0, 0x00000010},
> + {0x4f, 3, 1, 0, 0x00000000},
> + {0x07, 3, 0, 0, 0x00000001},
> + {0x63, 5, 3, 52, 0x00000000},
> + {0xb7, 7, 0, 0, 0x00000001},
> + {0xbf, 0, 7, 0, 0x00000000},
> + {0x95, 0, 0, 0, 0x00000000},
> +};
> +
> +/**
> + * Load BPF program (section l3_l4) into the kernel and return a bpf fd.
> + *
> + * @param[in] key_idx
> + * RSS MAP key index
> + *
> + * @param[in] map_fd
> + * BPF RSS map file descriptor
> + *
> + * @return
> + * -1 if the BPF program couldn't be loaded. An fd (int) otherwise.
> + */
> +int tap_flow_bpf_calc_l3_l4_hash(__u32 key_idx, int map_fd)
> +{
> + l3_l4_hash_insns[4].imm = key_idx;
> + l3_l4_hash_insns[9].imm = map_fd;
> +
> + return bpf_load(BPF_PROG_TYPE_SCHED_ACT,
> + (struct bpf_insn *)l3_l4_hash_insns,
> + ARRAY_SIZE(l3_l4_hash_insns),
> + "Dual BSD/GPL");
> +}
> +
> +
> +#ifndef __NR_bpf
> +# if defined(__i386__)
> +# define __NR_bpf 357
> +# elif defined(__x86_64__)
> +# define __NR_bpf 321
> +# elif defined(__aarch64__)
> +# define __NR_bpf 280
> +# elif defined(__sparc__)
> +# define __NR_bpf 349
> +# elif defined(__s390__)
> +# define __NR_bpf 351
> +# else
> +# error __NR_bpf not defined. libbpf does not support your arch.
> +# endif
> +#endif
> +
> +/**
> + * Helper function to convert a pointer to unsigned 64 bits
> + *
> + * @param[in] ptr
> + * pointer to address
> + *
> + * @return
> + * 64 bit unsigned long type of pointer address
> + */
> +static inline __u64 ptr_to_u64(const void *ptr)
> +{
> + return (__u64)(unsigned long)ptr;
> +}
> +
> +/**
> + * Call BPF system call
> + *
> + * @param[in] cmd
> + * BPF command for program loading, map creation, map entry update, etc
> + *
> + * @param[in] attr
> + * System call attributes relevant to system call command
> + *
> + * @param[in] size
> + * size of attr parameter
> + *
> + * @return
> + * -1 if BPF system call failed, 0 otherwise
> + */
> +static inline int sys_bpf(enum bpf_cmd cmd, union bpf_attr *attr,
> + unsigned int size)
> +{
> + return syscall(__NR_bpf, cmd, attr, size);
> +}
> +
> +/**
> + * Load BPF instructions to kernel
> + *
> + * @param[in] type
> + * BPF program type: classifieir or action
> + *
> + * @param[in] insns
> + * Array of BPF instructions (equivalent to BPF instructions)
> + *
> + * @param[in] insns_cnt
> + * Number of BPF instructions (size of array)
> + *
> + * @param[in] lincense
> + * License string that must be acknowledged by the kernel
> + *
> + * @return
> + * -1 if the BPF program couldn't be loaded, fd (file descriptor) otherwise
> + */
> +static int bpf_load(enum bpf_prog_type type,
> + const struct bpf_insn *insns,
> + size_t insns_cnt,
> + const char *license)
> +{
> + union bpf_attr attr;
> +
> + bzero(&attr, sizeof(attr));
> + attr.prog_type = type;
> + attr.insn_cnt = (__u32)insns_cnt;
> + attr.insns = ptr_to_u64(insns);
> + attr.license = ptr_to_u64(license);
> + attr.log_buf = ptr_to_u64(NULL);
> + attr.log_level = 0;
> + attr.kern_version = 0;
> +
> + return sys_bpf(BPF_PROG_LOAD, &attr, sizeof(attr));
> +}
> diff --git a/drivers/net/tap/tap_bpf_program.c b/drivers/net/tap/tap_bpf_program.c
> new file mode 100644
> index 0000000..08bc881
> --- /dev/null
> +++ b/drivers/net/tap/tap_bpf_program.c
> @@ -0,0 +1,221 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright 2017 Mellanox Technologies, Ltd.
> + */
> +
> +#include <stdint.h>
> +#include <stdbool.h>
> +#include <sys/types.h>
> +#include <sys/socket.h>
> +#include <asm/types.h>
> +#include <linux/in.h>
> +#include <linux/if.h>
> +#include <linux/if_ether.h>
> +#include <linux/ip.h>
> +#include <linux/ipv6.h>
> +#include <linux/if_tunnel.h>
> +#include <linux/filter.h>
> +#include <linux/bpf.h>
> +
> +#include "tap_rss.h"
> +
> +/** Create IPv4 address */
> +#define IPv4(a, b, c, d) ((__u32)(((a) & 0xff) << 24) | \
> + (((b) & 0xff) << 16) | \
> + (((c) & 0xff) << 8) | \
> + ((d) & 0xff))
> +
> +#define PORT(a, b) ((__u16)(((a) & 0xff) << 8) | \
> + ((b) & 0xff))
> +
> +/*
> + * The queue number is offset by 1, to distinguish packets that have
> + * gone through this rule (skb->cb[1] != 0) from others.
> + */
> +#define QUEUE_OFFSET 1
> +#define PIN_GLOBAL_NS 2
> +
> +#define KEY_IDX 0
> +#define BPF_MAP_ID_KEY 1
> +
> +struct vlan_hdr {
> + __be16 proto;
> + __be16 tci;
> +};
> +
> +struct bpf_elf_map __attribute__((section("maps"), used))
> +map_keys = {
> + .type = BPF_MAP_TYPE_HASH,
> + .id = BPF_MAP_ID_KEY,
> + .size_key = sizeof(__u32),
> + .size_value = sizeof(struct rss_key),
> + .max_elem = 256,
> + .pinning = PIN_GLOBAL_NS,
> +};
> +
> +__section("cls_q") int
> +match_q(struct __sk_buff *skb)
> +{
> + __u32 queue = skb->cb[1];
> + volatile __u32 q = 0xdeadbeef;
> + __u32 match_queue = QUEUE_OFFSET + q;
> +
> + /* printt("match_q$i() queue = %d\n", queue); */
> +
> + if (queue != match_queue)
> + return TC_ACT_OK;
> + return TC_ACT_UNSPEC;
> +}
> +
> +
> +struct ipv4_l3_l4_tuple {
> + __u32 src_addr;
> + __u32 dst_addr;
> + __u16 dport;
> + __u16 sport;
> +} __attribute__((packed));
> +
> +struct ipv6_l3_l4_tuple {
> + __u8 src_addr[16];
> + __u8 dst_addr[16];
> + __u16 dport;
> + __u16 sport;
> +} __attribute__((packed));
> +
> +static const __u8 def_rss_key[] = {
> + 0xd1, 0x81, 0xc6, 0x2c,
> + 0xf7, 0xf4, 0xdb, 0x5b,
> + 0x19, 0x83, 0xa2, 0xfc,
> + 0x94, 0x3e, 0x1a, 0xdb,
> + 0xd9, 0x38, 0x9e, 0x6b,
> + 0xd1, 0x03, 0x9c, 0x2c,
> + 0xa7, 0x44, 0x99, 0xad,
> + 0x59, 0x3d, 0x56, 0xd9,
> + 0xf3, 0x25, 0x3c, 0x06,
> + 0x2a, 0xdc, 0x1f, 0xfc,
> +};
> +
> +static __u32 __attribute__((always_inline))
> +rte_softrss_be(const __u32 *input_tuple, const uint8_t *rss_key,
> + __u8 input_len)
> +{
> + __u32 i, j, hash = 0;
> +#pragma unroll
> + for (j = 0; j < input_len; j++) {
> +#pragma unroll
> + for (i = 0; i < 32; i++) {
> + if (input_tuple[j] & (1 << (31 - i))) {
> + hash ^= ((const __u32 *)def_rss_key)[j] << i |
> + (__u32)((uint64_t)
> + (((const __u32 *)def_rss_key)[j + 1])
> + >> (32 - i));
> + }
> + }
> + }
> + return hash;
> +}
> +
> +static int __attribute__((always_inline))
> +rss_l3_l4(struct __sk_buff *skb)
> +{
> + void *data_end = (void *)(long)skb->data_end;
> + void *data = (void *)(long)skb->data;
> + __u16 proto = (__u16)skb->protocol;
> + __u32 key_idx = 0xdeadbeef;
> + __u32 hash;
> + struct rss_key *rsskey;
> + __u64 off = ETH_HLEN;
> + int j;
> + __u8 *key = 0;
> + __u32 len;
> + __u32 queue = 0;
> +
> + rsskey = map_lookup_elem(&map_keys, &key_idx);
> + if (!rsskey) {
> + printt("hash(): rss key is not configured\n");
> + return TC_ACT_OK;
> + }
> + key = (__u8 *)rsskey->key;
> +
> + /* Get correct proto for 802.1ad */
> + if (skb->vlan_present && skb->vlan_proto == htons(ETH_P_8021AD)) {
> + if (data + ETH_ALEN * 2 + sizeof(struct vlan_hdr) +
> + sizeof(proto) > data_end)
> + return TC_ACT_OK;
> + proto = *(__u16 *)(data + ETH_ALEN * 2 +
> + sizeof(struct vlan_hdr));
> + off += sizeof(struct vlan_hdr);
> + }
> +
> + if (proto == htons(ETH_P_IP)) {
> + if (data + off + sizeof(struct iphdr) + sizeof(__u32)
> + > data_end)
> + return TC_ACT_OK;
> +
> + __u8 *src_dst_addr = data + off + offsetof(struct iphdr, saddr);
> + __u8 *src_dst_port = data + off + sizeof(struct iphdr);
> + struct ipv4_l3_l4_tuple v4_tuple = {
> + .src_addr = IPv4(*(src_dst_addr + 0),
> + *(src_dst_addr + 1),
> + *(src_dst_addr + 2),
> + *(src_dst_addr + 3)),
> + .dst_addr = IPv4(*(src_dst_addr + 4),
> + *(src_dst_addr + 5),
> + *(src_dst_addr + 6),
> + *(src_dst_addr + 7)),
> + .sport = PORT(*(src_dst_port + 0),
> + *(src_dst_port + 1)),
> + .dport = PORT(*(src_dst_port + 2),
> + *(src_dst_port + 3)),
> + };
> + __u8 input_len = sizeof(v4_tuple) / sizeof(__u32);
> + if (rsskey->hash_fields & (1 << HASH_FIELD_IPV4_L3))
> + input_len--;
> + hash = rte_softrss_be((__u32 *)&v4_tuple, key, 3);
> + } else if (proto == htons(ETH_P_IPV6)) {
> + if (data + off + sizeof(struct ipv6hdr) +
> + sizeof(__u32) > data_end)
> + return TC_ACT_OK;
> + __u8 *src_dst_addr = data + off +
> + offsetof(struct ipv6hdr, saddr);
> + __u8 *src_dst_port = data + off +
> + sizeof(struct ipv6hdr);
> + struct ipv6_l3_l4_tuple v6_tuple;
> + for (j = 0; j < 4; j++)
> + *((uint32_t *)&v6_tuple.src_addr + j) =
> + __builtin_bswap32(*((uint32_t *)
> + src_dst_addr + j));
> + for (j = 0; j < 4; j++)
> + *((uint32_t *)&v6_tuple.dst_addr + j) =
> + __builtin_bswap32(*((uint32_t *)
> + src_dst_addr + 4 + j));
> + v6_tuple.sport = PORT(*(src_dst_port + 0),
> + *(src_dst_port + 1));
> + v6_tuple.dport = PORT(*(src_dst_port + 2),
> + *(src_dst_port + 3));
> +
> + __u8 input_len = sizeof(v6_tuple) / sizeof(__u32);
> + if (rsskey->hash_fields & (1 << HASH_FIELD_IPV6_L3))
> + input_len--;
> + hash = rte_softrss_be((__u32 *)&v6_tuple, key, 9);
> + } else {
> + return TC_ACT_PIPE;
> + }
> +
> + queue = rsskey->queues[(hash % rsskey->nb_queues) &
> + (TAP_MAX_QUEUES - 1)];
> + skb->cb[1] = QUEUE_OFFSET + queue;
> + /* printt(">>>>> rss_l3_l4 hash=0x%x queue=%u\n", hash, queue); */
> +
> + return TC_ACT_RECLASSIFY;
> +}
> +
> +#define RSS(L) \
> + __section(#L) int \
> + L ## _hash(struct __sk_buff *skb) \
> + { \
> + return rss_ ## L (skb); \
> + }
> +
> +RSS(l3_l4)
> +
> +BPF_LICENSE("Dual BSD/GPL");
> diff --git a/drivers/net/tap/tap_flow.h b/drivers/net/tap/tap_flow.h
> index 9e332b0..6cc01b4 100644
> --- a/drivers/net/tap/tap_flow.h
> +++ b/drivers/net/tap/tap_flow.h
> @@ -50,6 +50,8 @@
> #define GROUP_SHIFT 12
> #define MAX_GROUP GROUP_MASK
>
> +#define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
> +
> /**
> * These index are actually in reversed order: their priority is processed
> * by subtracting their value to the lowest priority (PRIORITY_MASK).
> @@ -80,4 +82,7 @@ int tap_flow_implicit_destroy(struct pmd_internals *pmd,
> int tap_flow_implicit_flush(struct pmd_internals *pmd,
> struct rte_flow_error *error);
>
> +int tap_flow_bpf_cls_q(__u32 queue_idx);
> +int tap_flow_bpf_calc_l3_l4_hash(__u32 key_idx, int map_fd);
> +
> #endif /* _TAP_FLOW_H_ */
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